From 6f1dcbc8d4741a0d03816ee7926e6db3583e1b9c Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 16 Feb 2022 20:31:04 -0800
Subject: [PATCH 001/150] Update playground to 6.0

---
 Elements.Playground/Elements.Playground.csproj | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Elements.Playground/Elements.Playground.csproj b/Elements.Playground/Elements.Playground.csproj
index 83a14308e..33d8d40bb 100644
--- a/Elements.Playground/Elements.Playground.csproj
+++ b/Elements.Playground/Elements.Playground.csproj
@@ -1,11 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
 
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
     <BlazorEnableCompression>false</BlazorEnableCompression>
     <BlazorWebAssemblyEnableLinking>false</BlazorWebAssemblyEnableLinking>
     <PublishTrimmed>false</PublishTrimmed>
+    <RunAOTCompilation>true</RunAOTCompilation>
   </PropertyGroup>
 
   <ItemGroup>

From c509b41da3a2a81cfa23ff718c41af3623930979 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 16 Feb 2022 20:39:57 -0800
Subject: [PATCH 002/150] Add the default project assets.

---
 Elements.Wasm/App.razor                       |  12 +
 Elements.Wasm/Elements.Wasm.csproj            |  19 +
 Elements.Wasm/Program.cs                      |  11 +
 Elements.Wasm/Properties/launchSettings.json  |  30 +
 Elements.Wasm/_Imports.razor                  |  10 +
 Elements.Wasm/wwwroot/css/app.css             |  64 +++
 .../wwwroot/css/bootstrap/bootstrap.min.css   |   7 +
 .../css/bootstrap/bootstrap.min.css.map       |   1 +
 .../wwwroot/css/open-iconic/FONT-LICENSE      |  86 +++
 .../wwwroot/css/open-iconic/ICON-LICENSE      |  21 +
 .../wwwroot/css/open-iconic/README.md         | 114 ++++
 .../font/css/open-iconic-bootstrap.min.css    |   1 +
 .../open-iconic/font/fonts/open-iconic.eot    | Bin 0 -> 28196 bytes
 .../open-iconic/font/fonts/open-iconic.otf    | Bin 0 -> 20996 bytes
 .../open-iconic/font/fonts/open-iconic.svg    | 543 ++++++++++++++++++
 .../open-iconic/font/fonts/open-iconic.ttf    | Bin 0 -> 28028 bytes
 .../open-iconic/font/fonts/open-iconic.woff   | Bin 0 -> 14984 bytes
 Elements.Wasm/wwwroot/favicon.ico             | Bin 0 -> 5430 bytes
 Elements.Wasm/wwwroot/icon-192.png            | Bin 0 -> 2626 bytes
 Elements.Wasm/wwwroot/index.html              |  25 +
 .../wwwroot/sample-data/weather.json          |  27 +
 21 files changed, 971 insertions(+)
 create mode 100644 Elements.Wasm/App.razor
 create mode 100644 Elements.Wasm/Elements.Wasm.csproj
 create mode 100644 Elements.Wasm/Program.cs
 create mode 100644 Elements.Wasm/Properties/launchSettings.json
 create mode 100644 Elements.Wasm/_Imports.razor
 create mode 100644 Elements.Wasm/wwwroot/css/app.css
 create mode 100644 Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css
 create mode 100644 Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css.map
 create mode 100644 Elements.Wasm/wwwroot/css/open-iconic/FONT-LICENSE
 create mode 100644 Elements.Wasm/wwwroot/css/open-iconic/ICON-LICENSE
 create mode 100644 Elements.Wasm/wwwroot/css/open-iconic/README.md
 create mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/css/open-iconic-bootstrap.min.css
 create mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.eot
 create mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.otf
 create mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.svg
 create mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.ttf
 create mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.woff
 create mode 100644 Elements.Wasm/wwwroot/favicon.ico
 create mode 100644 Elements.Wasm/wwwroot/icon-192.png
 create mode 100644 Elements.Wasm/wwwroot/index.html
 create mode 100644 Elements.Wasm/wwwroot/sample-data/weather.json

diff --git a/Elements.Wasm/App.razor b/Elements.Wasm/App.razor
new file mode 100644
index 000000000..623580d09
--- /dev/null
+++ b/Elements.Wasm/App.razor
@@ -0,0 +1,12 @@
+<Router AppAssembly="@typeof(App).Assembly">
+    <Found Context="routeData">
+        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
+        <FocusOnNavigate RouteData="@routeData" Selector="h1" />
+    </Found>
+    <NotFound>
+        <PageTitle>Not found</PageTitle>
+        <LayoutView Layout="@typeof(MainLayout)">
+            <p role="alert">Sorry, there's nothing at this address.</p>
+        </LayoutView>
+    </NotFound>
+</Router>
diff --git a/Elements.Wasm/Elements.Wasm.csproj b/Elements.Wasm/Elements.Wasm.csproj
new file mode 100644
index 000000000..00da8e19b
--- /dev/null
+++ b/Elements.Wasm/Elements.Wasm.csproj
@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <RunAOTCompilation>true</RunAOTCompilation>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="6.0.2" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="6.0.2" PrivateAssets="all" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Elements\src\Elements.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/Elements.Wasm/Program.cs b/Elements.Wasm/Program.cs
new file mode 100644
index 000000000..4749d1339
--- /dev/null
+++ b/Elements.Wasm/Program.cs
@@ -0,0 +1,11 @@
+using Microsoft.AspNetCore.Components.Web;
+using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
+using Elements.Wasm;
+
+var builder = WebAssemblyHostBuilder.CreateDefault(args);
+// builder.RootComponents.Add<App>("#app");
+// builder.RootComponents.Add<HeadOutlet>("head::after");
+
+builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
+
+await builder.Build().RunAsync();
diff --git a/Elements.Wasm/Properties/launchSettings.json b/Elements.Wasm/Properties/launchSettings.json
new file mode 100644
index 000000000..ea9610c7e
--- /dev/null
+++ b/Elements.Wasm/Properties/launchSettings.json
@@ -0,0 +1,30 @@
+{
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:41674",
+      "sslPort": 44385
+    }
+  },
+  "profiles": {
+    "Elements.Wasm": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
+      "applicationUrl": "https://localhost:7289;http://localhost:5072",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}
diff --git a/Elements.Wasm/_Imports.razor b/Elements.Wasm/_Imports.razor
new file mode 100644
index 000000000..aae8e8589
--- /dev/null
+++ b/Elements.Wasm/_Imports.razor
@@ -0,0 +1,10 @@
+@using System.Net.Http
+@using System.Net.Http.Json
+@using Microsoft.AspNetCore.Components.Forms
+@using Microsoft.AspNetCore.Components.Routing
+@using Microsoft.AspNetCore.Components.Web
+@using Microsoft.AspNetCore.Components.Web.Virtualization
+@using Microsoft.AspNetCore.Components.WebAssembly.Http
+@using Microsoft.JSInterop
+@using Elements.Wasm
+@using Elements.Wasm.Shared
diff --git a/Elements.Wasm/wwwroot/css/app.css b/Elements.Wasm/wwwroot/css/app.css
new file mode 100644
index 000000000..7157ee8f4
--- /dev/null
+++ b/Elements.Wasm/wwwroot/css/app.css
@@ -0,0 +1,64 @@
+@import url('open-iconic/font/css/open-iconic-bootstrap.min.css');
+
+html, body {
+    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
+}
+
+h1:focus {
+    outline: none;
+}
+
+a, .btn-link {
+    color: #0071c1;
+}
+
+.btn-primary {
+    color: #fff;
+    background-color: #1b6ec2;
+    border-color: #1861ac;
+}
+
+.content {
+    padding-top: 1.1rem;
+}
+
+.valid.modified:not([type=checkbox]) {
+    outline: 1px solid #26b050;
+}
+
+.invalid {
+    outline: 1px solid red;
+}
+
+.validation-message {
+    color: red;
+}
+
+#blazor-error-ui {
+    background: lightyellow;
+    bottom: 0;
+    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
+    display: none;
+    left: 0;
+    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
+    position: fixed;
+    width: 100%;
+    z-index: 1000;
+}
+
+    #blazor-error-ui .dismiss {
+        cursor: pointer;
+        position: absolute;
+        right: 0.75rem;
+        top: 0.5rem;
+    }
+
+.blazor-error-boundary {
+    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
+    padding: 1rem 1rem 1rem 3.7rem;
+    color: white;
+}
+
+    .blazor-error-boundary::after {
+        content: "An error has occurred."
+    }
diff --git a/Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css b/Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css
new file mode 100644
index 000000000..02ae65b5f
--- /dev/null
+++ b/Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css
@@ -0,0 +1,7 @@
+@charset "UTF-8";/*!
+ * Bootstrap v5.1.0 (https://getbootstrap.com/)
+ * Copyright 2011-2021 The Bootstrap Authors
+ * Copyright 2011-2021 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ */:root{--bs-blue:#0d6efd;--bs-indigo:#6610f2;--bs-purple:#6f42c1;--bs-pink:#d63384;--bs-red:#dc3545;--bs-orange:#fd7e14;--bs-yellow:#ffc107;--bs-green:#198754;--bs-teal:#20c997;--bs-cyan:#0dcaf0;--bs-white:#fff;--bs-gray:#6c757d;--bs-gray-dark:#343a40;--bs-gray-100:#f8f9fa;--bs-gray-200:#e9ecef;--bs-gray-300:#dee2e6;--bs-gray-400:#ced4da;--bs-gray-500:#adb5bd;--bs-gray-600:#6c757d;--bs-gray-700:#495057;--bs-gray-800:#343a40;--bs-gray-900:#212529;--bs-primary:#0d6efd;--bs-secondary:#6c757d;--bs-success:#198754;--bs-info:#0dcaf0;--bs-warning:#ffc107;--bs-danger:#dc3545;--bs-light:#f8f9fa;--bs-dark:#212529;--bs-primary-rgb:13,110,253;--bs-secondary-rgb:108,117,125;--bs-success-rgb:25,135,84;--bs-info-rgb:13,202,240;--bs-warning-rgb:255,193,7;--bs-danger-rgb:220,53,69;--bs-light-rgb:248,249,250;--bs-dark-rgb:33,37,41;--bs-white-rgb:255,255,255;--bs-black-rgb:0,0,0;--bs-body-rgb:33,37,41;--bs-font-sans-serif:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--bs-font-monospace:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--bs-gradient:linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0));--bs-body-font-family:var(--bs-font-sans-serif);--bs-body-font-size:1rem;--bs-body-font-weight:400;--bs-body-line-height:1.5;--bs-body-color:#212529;--bs-body-bg:#fff}*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:var(--bs-body-font-family);font-size:var(--bs-body-font-size);font-weight:var(--bs-body-font-weight);line-height:var(--bs-body-line-height);color:var(--bs-body-color);text-align:var(--bs-body-text-align);background-color:var(--bs-body-bg);-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}.h1,.h2,.h3,.h4,.h5,.h6,h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}.h1,h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){.h1,h1{font-size:2.5rem}}.h2,h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){.h2,h2{font-size:2rem}}.h3,h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){.h3,h3{font-size:1.75rem}}.h4,h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){.h4,h4{font-size:1.5rem}}.h5,h5{font-size:1.25rem}.h6,h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}.small,small{font-size:.875em}.mark,mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:var(--bs-font-monospace);font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}.lead{font-size:1.25rem;font-weight:300}.display-1{font-size:calc(1.625rem + 4.5vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-1{font-size:5rem}}.display-2{font-size:calc(1.575rem + 3.9vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-2{font-size:4.5rem}}.display-3{font-size:calc(1.525rem + 3.3vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-3{font-size:4rem}}.display-4{font-size:calc(1.475rem + 2.7vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-4{font-size:3.5rem}}.display-5{font-size:calc(1.425rem + 2.1vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-5{font-size:3rem}}.display-6{font-size:calc(1.375rem + 1.5vw);font-weight:300;line-height:1.2}@media 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new file mode 100644
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However, we also reset the\n// bottom margin to use `rem` units instead of `em`.\n\np {\n  margin-top: 0;\n  margin-bottom: $paragraph-margin-bottom;\n}\n\n\n// Abbreviations\n//\n// 1. Duplicate behavior to the data-bs-* attribute for our tooltip plugin\n// 2. Add the correct text decoration in Chrome, Edge, Opera, and Safari.\n// 3. Add explicit cursor to indicate changed behavior.\n// 4. Prevent the text-decoration to be skipped.\n\nabbr[title],\nabbr[data-bs-original-title] { // 1\n  text-decoration: underline dotted; // 2\n  cursor: help; // 3\n  text-decoration-skip-ink: none; // 4\n}\n\n\n// Address\n\naddress {\n  margin-bottom: 1rem;\n  font-style: normal;\n  line-height: inherit;\n}\n\n\n// Lists\n\nol,\nul {\n  padding-left: 2rem;\n}\n\nol,\nul,\ndl {\n  margin-top: 0;\n  margin-bottom: 1rem;\n}\n\nol ol,\nul ul,\nol ul,\nul ol {\n  margin-bottom: 0;\n}\n\ndt {\n  font-weight: $dt-font-weight;\n}\n\n// 1. 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Remove browser default top margin\n// 2. Reset browser default of `1em` to use `rem`s\n// 3. Don't allow content to break outside\n\npre {\n  display: block;\n  margin-top: 0; // 1\n  margin-bottom: 1rem; // 2\n  overflow: auto; // 3\n  @include font-size($code-font-size);\n  color: $pre-color;\n\n  // Account for some code outputs that place code tags in pre tags\n  code {\n    @include font-size(inherit);\n    color: inherit;\n    word-break: normal;\n  }\n}\n\ncode {\n  @include font-size($code-font-size);\n  color: $code-color;\n  word-wrap: break-word;\n\n  // Streamline the style when inside anchors to avoid broken underline and more\n  a > & {\n    color: inherit;\n  }\n}\n\nkbd {\n  padding: $kbd-padding-y $kbd-padding-x;\n  @include font-size($kbd-font-size);\n  color: $kbd-color;\n  background-color: $kbd-bg;\n  @include border-radius($border-radius-sm);\n\n  kbd {\n    padding: 0;\n    @include font-size(1em);\n    font-weight: $nested-kbd-font-weight;\n  }\n}\n\n\n// Figures\n//\n// Apply a consistent margin strategy (matches our type styles).\n\nfigure {\n  margin: 0 0 1rem;\n}\n\n\n// Images and content\n\nimg,\nsvg {\n  vertical-align: middle;\n}\n\n\n// Tables\n//\n// Prevent double borders\n\ntable {\n  caption-side: bottom;\n  border-collapse: collapse;\n}\n\ncaption {\n  padding-top: $table-cell-padding-y;\n  padding-bottom: $table-cell-padding-y;\n  color: $table-caption-color;\n  text-align: left;\n}\n\n// 1. Removes font-weight bold by inheriting\n// 2. Matches default `<td>` alignment by inheriting `text-align`.\n// 3. Fix alignment for Safari\n\nth {\n  font-weight: $table-th-font-weight; // 1\n  text-align: inherit; // 2\n  text-align: -webkit-match-parent; // 3\n}\n\nthead,\ntbody,\ntfoot,\ntr,\ntd,\nth {\n  border-color: inherit;\n  border-style: solid;\n  border-width: 0;\n}\n\n\n// Forms\n//\n// 1. Allow labels to use `margin` for spacing.\n\nlabel {\n  display: inline-block; // 1\n}\n\n// Remove the default `border-radius` that macOS Chrome adds.\n// See https://github.com/twbs/bootstrap/issues/24093\n\nbutton {\n  // stylelint-disable-next-line property-disallowed-list\n  border-radius: 0;\n}\n\n// Explicitly remove focus outline in Chromium when it shouldn't be\n// visible (e.g. as result of mouse click or touch tap). It already\n// should be doing this automatically, but seems to currently be\n// confused and applies its very visible two-tone outline anyway.\n\nbutton:focus:not(:focus-visible) {\n  outline: 0;\n}\n\n// 1. Remove the margin in Firefox and Safari\n\ninput,\nbutton,\nselect,\noptgroup,\ntextarea {\n  margin: 0; // 1\n  font-family: inherit;\n  @include font-size(inherit);\n  line-height: inherit;\n}\n\n// Remove the inheritance of text transform in Firefox\nbutton,\nselect {\n  text-transform: none;\n}\n// Set the cursor for non-`<button>` buttons\n//\n// Details at https://github.com/twbs/bootstrap/pull/30562\n[role=\"button\"] {\n  cursor: pointer;\n}\n\nselect {\n  // Remove the inheritance of word-wrap in Safari.\n  // See https://github.com/twbs/bootstrap/issues/24990\n  word-wrap: normal;\n\n  // Undo the opacity change from Chrome\n  &:disabled {\n    opacity: 1;\n  }\n}\n\n// Remove the dropdown arrow in Chrome from inputs built with datalists.\n// See https://stackoverflow.com/a/54997118\n\n[list]::-webkit-calendar-picker-indicator {\n  display: none;\n}\n\n// 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`\n//    controls in Android 4.\n// 2. Correct the inability to style clickable types in iOS and Safari.\n// 3. Opinionated: add \"hand\" cursor to non-disabled button elements.\n\nbutton,\n[type=\"button\"], // 1\n[type=\"reset\"],\n[type=\"submit\"] {\n  -webkit-appearance: button; // 2\n\n  @if $enable-button-pointers {\n    &:not(:disabled) {\n      cursor: pointer; // 3\n    }\n  }\n}\n\n// Remove inner border and padding from Firefox, but don't restore the outline like Normalize.\n\n::-moz-focus-inner {\n  padding: 0;\n  border-style: none;\n}\n\n// 1. Textareas should really only resize vertically so they don't break their (horizontal) containers.\n\ntextarea {\n  resize: vertical; // 1\n}\n\n// 1. Browsers set a default `min-width: min-content;` on fieldsets,\n//    unlike e.g. `<div>`s, which have `min-width: 0;` by default.\n//    So we reset that to ensure fieldsets behave more like a standard block element.\n//    See https://github.com/twbs/bootstrap/issues/12359\n//    and https://html.spec.whatwg.org/multipage/#the-fieldset-and-legend-elements\n// 2. Reset the default outline behavior of fieldsets so they don't affect page layout.\n\nfieldset {\n  min-width: 0; // 1\n  padding: 0; // 2\n  margin: 0; // 2\n  border: 0; // 2\n}\n\n// 1. By using `float: left`, the legend will behave like a block element.\n//    This way the border of a fieldset wraps around the legend if present.\n// 2. Fix wrapping bug.\n//    See https://github.com/twbs/bootstrap/issues/29712\n\nlegend {\n  float: left; // 1\n  width: 100%;\n  padding: 0;\n  margin-bottom: $legend-margin-bottom;\n  @include font-size($legend-font-size);\n  font-weight: $legend-font-weight;\n  line-height: inherit;\n\n  + * {\n    clear: left; // 2\n  }\n}\n\n// Fix height of inputs with a type of datetime-local, date, month, week, or time\n// See https://github.com/twbs/bootstrap/issues/18842\n\n::-webkit-datetime-edit-fields-wrapper,\n::-webkit-datetime-edit-text,\n::-webkit-datetime-edit-minute,\n::-webkit-datetime-edit-hour-field,\n::-webkit-datetime-edit-day-field,\n::-webkit-datetime-edit-month-field,\n::-webkit-datetime-edit-year-field {\n  padding: 0;\n}\n\n::-webkit-inner-spin-button {\n  height: auto;\n}\n\n// 1. Correct the outline style in Safari.\n// 2. This overrides the extra rounded corners on search inputs in iOS so that our\n//    `.form-control` class can properly style them. Note that this cannot simply\n//    be added to `.form-control` as it's not specific enough. For details, see\n//    https://github.com/twbs/bootstrap/issues/11586.\n\n[type=\"search\"] {\n  outline-offset: -2px; // 1\n  -webkit-appearance: textfield; // 2\n}\n\n// 1. A few input types should stay LTR\n// See https://rtlstyling.com/posts/rtl-styling#form-inputs\n// 2. RTL only output\n// See https://rtlcss.com/learn/usage-guide/control-directives/#raw\n\n/* rtl:raw:\n[type=\"tel\"],\n[type=\"url\"],\n[type=\"email\"],\n[type=\"number\"] {\n  direction: ltr;\n}\n*/\n\n// Remove the inner padding in Chrome and Safari on macOS.\n\n::-webkit-search-decoration {\n  -webkit-appearance: none;\n}\n\n// Remove padding around color pickers in webkit browsers\n\n::-webkit-color-swatch-wrapper {\n  padding: 0;\n}\n\n\n// Inherit font family and line height for file input buttons\n\n::file-selector-button {\n  font: inherit;\n}\n\n// 1. Change font properties to `inherit`\n// 2. Correct the inability to style clickable types in iOS and Safari.\n\n::-webkit-file-upload-button {\n  font: inherit; // 1\n  -webkit-appearance: button; // 2\n}\n\n// Correct element displays\n\noutput {\n  display: inline-block;\n}\n\n// Remove border from iframe\n\niframe {\n  border: 0;\n}\n\n// Summary\n//\n// 1. Add the correct display in all browsers\n\nsummary {\n  display: list-item; // 1\n  cursor: pointer;\n}\n\n\n// Progress\n//\n// Add the correct vertical alignment in Chrome, Firefox, and Opera.\n\nprogress {\n  vertical-align: baseline;\n}\n\n\n// Hidden attribute\n//\n// Always hide an element with the `hidden` HTML attribute.\n\n[hidden] {\n  display: none !important;\n}\n","@charset \"UTF-8\";\n/*!\n * Bootstrap v5.1.0 (https://getbootstrap.com/)\n * Copyright 2011-2021 The Bootstrap Authors\n * Copyright 2011-2021 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n */\n:root {\n  --bs-blue: #0d6efd;\n  --bs-indigo: #6610f2;\n  --bs-purple: #6f42c1;\n  --bs-pink: #d63384;\n  --bs-red: #dc3545;\n  --bs-orange: #fd7e14;\n  --bs-yellow: #ffc107;\n  --bs-green: #198754;\n  --bs-teal: #20c997;\n  --bs-cyan: #0dcaf0;\n  --bs-white: #fff;\n  --bs-gray: #6c757d;\n  --bs-gray-dark: #343a40;\n  --bs-gray-100: #f8f9fa;\n  --bs-gray-200: #e9ecef;\n  --bs-gray-300: #dee2e6;\n  --bs-gray-400: #ced4da;\n  --bs-gray-500: #adb5bd;\n  --bs-gray-600: #6c757d;\n  --bs-gray-700: #495057;\n  --bs-gray-800: #343a40;\n  --bs-gray-900: #212529;\n  --bs-primary: #0d6efd;\n  --bs-secondary: #6c757d;\n  --bs-success: #198754;\n  --bs-info: #0dcaf0;\n  --bs-warning: #ffc107;\n  --bs-danger: #dc3545;\n  --bs-light: #f8f9fa;\n  --bs-dark: #212529;\n  --bs-primary-rgb: 13, 110, 253;\n  --bs-secondary-rgb: 108, 117, 125;\n  --bs-success-rgb: 25, 135, 84;\n  --bs-info-rgb: 13, 202, 240;\n  --bs-warning-rgb: 255, 193, 7;\n  --bs-danger-rgb: 220, 53, 69;\n  --bs-light-rgb: 248, 249, 250;\n  --bs-dark-rgb: 33, 37, 41;\n  --bs-white-rgb: 255, 255, 255;\n  --bs-black-rgb: 0, 0, 0;\n  --bs-body-rgb: 33, 37, 41;\n  --bs-font-sans-serif: system-ui, -apple-system, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, \"Noto Sans\", \"Liberation Sans\", sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\";\n  --bs-font-monospace: SFMono-Regular, Menlo, Monaco, Consolas, \"Liberation Mono\", \"Courier New\", monospace;\n  --bs-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0));\n  --bs-body-font-family: var(--bs-font-sans-serif);\n  --bs-body-font-size: 1rem;\n  --bs-body-font-weight: 400;\n  --bs-body-line-height: 1.5;\n  --bs-body-color: #212529;\n  --bs-body-bg: #fff;\n}\n\n*,\n*::before,\n*::after {\n  box-sizing: border-box;\n}\n\n@media (prefers-reduced-motion: no-preference) {\n  :root {\n    scroll-behavior: smooth;\n  }\n}\n\nbody {\n  margin: 0;\n  font-family: var(--bs-body-font-family);\n  font-size: var(--bs-body-font-size);\n  font-weight: var(--bs-body-font-weight);\n  line-height: var(--bs-body-line-height);\n  color: var(--bs-body-color);\n  text-align: var(--bs-body-text-align);\n  background-color: var(--bs-body-bg);\n  -webkit-text-size-adjust: 100%;\n  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\n}\n\nhr {\n  margin: 1rem 0;\n  color: inherit;\n  background-color: currentColor;\n  border: 0;\n  opacity: 0.25;\n}\n\nhr:not([size]) {\n  height: 1px;\n}\n\nh6, .h6, h5, .h5, h4, .h4, h3, .h3, h2, .h2, h1, .h1 {\n  margin-top: 0;\n  margin-bottom: 0.5rem;\n  font-weight: 500;\n  line-height: 1.2;\n}\n\nh1, .h1 {\n  font-size: calc(1.375rem + 1.5vw);\n}\n@media (min-width: 1200px) {\n  h1, .h1 {\n    font-size: 2.5rem;\n  }\n}\n\nh2, .h2 {\n  font-size: calc(1.325rem + 0.9vw);\n}\n@media (min-width: 1200px) {\n  h2, .h2 {\n    font-size: 2rem;\n  }\n}\n\nh3, .h3 {\n  font-size: calc(1.3rem + 0.6vw);\n}\n@media (min-width: 1200px) {\n  h3, .h3 {\n    font-size: 1.75rem;\n  }\n}\n\nh4, .h4 {\n  font-size: calc(1.275rem + 0.3vw);\n}\n@media (min-width: 1200px) {\n  h4, .h4 {\n    font-size: 1.5rem;\n  }\n}\n\nh5, .h5 {\n  font-size: 1.25rem;\n}\n\nh6, .h6 {\n  font-size: 1rem;\n}\n\np {\n  margin-top: 0;\n  margin-bottom: 1rem;\n}\n\nabbr[title],\nabbr[data-bs-original-title] {\n  -webkit-text-decoration: underline dotted;\n  text-decoration: underline dotted;\n  cursor: help;\n  -webkit-text-decoration-skip-ink: none;\n  text-decoration-skip-ink: none;\n}\n\naddress {\n  margin-bottom: 1rem;\n  font-style: normal;\n  line-height: inherit;\n}\n\nol,\nul {\n  padding-left: 2rem;\n}\n\nol,\nul,\ndl {\n  margin-top: 0;\n  margin-bottom: 1rem;\n}\n\nol ol,\nul ul,\nol ul,\nul ol {\n  margin-bottom: 0;\n}\n\ndt {\n  font-weight: 700;\n}\n\ndd {\n  margin-bottom: 0.5rem;\n  margin-left: 0;\n}\n\nblockquote {\n  margin: 0 0 1rem;\n}\n\nb,\nstrong {\n  font-weight: bolder;\n}\n\nsmall, .small {\n  font-size: 0.875em;\n}\n\nmark, .mark {\n  padding: 0.2em;\n  background-color: #fcf8e3;\n}\n\nsub,\nsup {\n  position: relative;\n  font-size: 0.75em;\n  line-height: 0;\n  vertical-align: baseline;\n}\n\nsub {\n  bottom: -0.25em;\n}\n\nsup {\n  top: -0.5em;\n}\n\na {\n  color: #0d6efd;\n  text-decoration: underline;\n}\na:hover {\n  color: #0a58ca;\n}\n\na:not([href]):not([class]), a:not([href]):not([class]):hover {\n  color: inherit;\n  text-decoration: none;\n}\n\npre,\ncode,\nkbd,\nsamp {\n  font-family: var(--bs-font-monospace);\n  font-size: 1em;\n  direction: ltr /* rtl:ignore */;\n  unicode-bidi: bidi-override;\n}\n\npre {\n  display: block;\n  margin-top: 0;\n  margin-bottom: 1rem;\n  overflow: auto;\n  font-size: 0.875em;\n}\npre code {\n  font-size: inherit;\n  color: inherit;\n  word-break: normal;\n}\n\ncode {\n  font-size: 0.875em;\n  color: #d63384;\n  word-wrap: break-word;\n}\na > code {\n  color: inherit;\n}\n\nkbd {\n  padding: 0.2rem 0.4rem;\n  font-size: 0.875em;\n  color: #fff;\n  background-color: #212529;\n  border-radius: 0.2rem;\n}\nkbd kbd {\n  padding: 0;\n  font-size: 1em;\n  font-weight: 700;\n}\n\nfigure {\n  margin: 0 0 1rem;\n}\n\nimg,\nsvg {\n  vertical-align: middle;\n}\n\ntable {\n  caption-side: bottom;\n  border-collapse: collapse;\n}\n\ncaption {\n  padding-top: 0.5rem;\n  padding-bottom: 0.5rem;\n  color: #6c757d;\n  text-align: left;\n}\n\nth {\n  text-align: inherit;\n  text-align: -webkit-match-parent;\n}\n\nthead,\ntbody,\ntfoot,\ntr,\ntd,\nth {\n  border-color: inherit;\n  border-style: solid;\n  border-width: 0;\n}\n\nlabel {\n  display: inline-block;\n}\n\nbutton {\n  border-radius: 0;\n}\n\nbutton:focus:not(:focus-visible) {\n  outline: 0;\n}\n\ninput,\nbutton,\nselect,\noptgroup,\ntextarea {\n  margin: 0;\n  font-family: inherit;\n  font-size: inherit;\n  line-height: inherit;\n}\n\nbutton,\nselect {\n  text-transform: none;\n}\n\n[role=button] {\n  cursor: pointer;\n}\n\nselect {\n  word-wrap: normal;\n}\nselect:disabled {\n  opacity: 1;\n}\n\n[list]::-webkit-calendar-picker-indicator {\n  display: none;\n}\n\nbutton,\n[type=button],\n[type=reset],\n[type=submit] {\n  -webkit-appearance: button;\n}\nbutton:not(:disabled),\n[type=button]:not(:disabled),\n[type=reset]:not(:disabled),\n[type=submit]:not(:disabled) {\n  cursor: pointer;\n}\n\n::-moz-focus-inner {\n  padding: 0;\n  border-style: none;\n}\n\ntextarea {\n  resize: vertical;\n}\n\nfieldset {\n  min-width: 0;\n  padding: 0;\n  margin: 0;\n  border: 0;\n}\n\nlegend {\n  float: left;\n  width: 100%;\n  padding: 0;\n  margin-bottom: 0.5rem;\n  font-size: calc(1.275rem + 0.3vw);\n  line-height: inherit;\n}\n@media (min-width: 1200px) {\n  legend {\n    font-size: 1.5rem;\n  }\n}\nlegend + * {\n  clear: left;\n}\n\n::-webkit-datetime-edit-fields-wrapper,\n::-webkit-datetime-edit-text,\n::-webkit-datetime-edit-minute,\n::-webkit-datetime-edit-hour-field,\n::-webkit-datetime-edit-day-field,\n::-webkit-datetime-edit-month-field,\n::-webkit-datetime-edit-year-field {\n  padding: 0;\n}\n\n::-webkit-inner-spin-button {\n  height: auto;\n}\n\n[type=search] {\n  outline-offset: -2px;\n  -webkit-appearance: textfield;\n}\n\n/* rtl:raw:\n[type=\"tel\"],\n[type=\"url\"],\n[type=\"email\"],\n[type=\"number\"] {\n  direction: ltr;\n}\n*/\n::-webkit-search-decoration {\n  -webkit-appearance: none;\n}\n\n::-webkit-color-swatch-wrapper {\n  padding: 0;\n}\n\n::file-selector-button {\n  font: inherit;\n}\n\n::-webkit-file-upload-button {\n  font: inherit;\n  -webkit-appearance: button;\n}\n\noutput {\n  display: inline-block;\n}\n\niframe {\n  border: 0;\n}\n\nsummary {\n  display: list-item;\n  cursor: pointer;\n}\n\nprogress {\n  vertical-align: baseline;\n}\n\n[hidden] {\n  display: none !important;\n}\n\n.lead {\n  font-size: 1.25rem;\n  font-weight: 300;\n}\n\n.display-1 {\n  font-size: calc(1.625rem + 4.5vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-1 {\n    font-size: 5rem;\n  }\n}\n\n.display-2 {\n  font-size: calc(1.575rem + 3.9vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-2 {\n    font-size: 4.5rem;\n  }\n}\n\n.display-3 {\n  font-size: calc(1.525rem + 3.3vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-3 {\n    font-size: 4rem;\n  }\n}\n\n.display-4 {\n  font-size: calc(1.475rem + 2.7vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-4 {\n    font-size: 3.5rem;\n  }\n}\n\n.display-5 {\n  font-size: calc(1.425rem + 2.1vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-5 {\n    font-size: 3rem;\n  }\n}\n\n.display-6 {\n  font-size: calc(1.375rem + 1.5vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-6 {\n    font-size: 2.5rem;\n  }\n}\n\n.list-unstyled {\n  padding-left: 0;\n  list-style: none;\n}\n\n.list-inline {\n  padding-left: 0;\n  list-style: none;\n}\n\n.list-inline-item {\n  display: inline-block;\n}\n.list-inline-item:not(:last-child) {\n  margin-right: 0.5rem;\n}\n\n.initialism {\n  font-size: 0.875em;\n  text-transform: uppercase;\n}\n\n.blockquote {\n  margin-bottom: 1rem;\n  font-size: 1.25rem;\n}\n.blockquote > :last-child {\n  margin-bottom: 0;\n}\n\n.blockquote-footer {\n  margin-top: -1rem;\n  margin-bottom: 1rem;\n  font-size: 0.875em;\n  color: #6c757d;\n}\n.blockquote-footer::before {\n  content: \"— \";\n}\n\n.img-fluid {\n  max-width: 100%;\n  height: auto;\n}\n\n.img-thumbnail {\n  padding: 0.25rem;\n  background-color: #fff;\n  border: 1px solid #dee2e6;\n  border-radius: 0.25rem;\n  max-width: 100%;\n  height: auto;\n}\n\n.figure {\n  display: inline-block;\n}\n\n.figure-img {\n  margin-bottom: 0.5rem;\n  line-height: 1;\n}\n\n.figure-caption {\n  font-size: 0.875em;\n  color: #6c757d;\n}\n\n.container,\n.container-fluid,\n.container-xxl,\n.container-xl,\n.container-lg,\n.container-md,\n.container-sm {\n  width: 100%;\n  padding-right: var(--bs-gutter-x, 0.75rem);\n  padding-left: var(--bs-gutter-x, 0.75rem);\n  margin-right: auto;\n  margin-left: auto;\n}\n\n@media (min-width: 576px) {\n  .container-sm, .container {\n    max-width: 540px;\n  }\n}\n@media (min-width: 768px) {\n  .container-md, .container-sm, .container {\n    max-width: 720px;\n  }\n}\n@media (min-width: 992px) {\n  .container-lg, .container-md, .container-sm, .container {\n    max-width: 960px;\n  }\n}\n@media (min-width: 1200px) {\n  .container-xl, .container-lg, .container-md, .container-sm, .container {\n    max-width: 1140px;\n  }\n}\n@media (min-width: 1400px) {\n  .container-xxl, .container-xl, .container-lg, .container-md, .container-sm, .container {\n    max-width: 1320px;\n  }\n}\n.row {\n  --bs-gutter-x: 1.5rem;\n  --bs-gutter-y: 0;\n  display: flex;\n  flex-wrap: wrap;\n  margin-top: calc(var(--bs-gutter-y) * -1);\n  margin-right: calc(var(--bs-gutter-x) * -.5);\n  margin-left: calc(var(--bs-gutter-x) * -.5);\n}\n.row > * {\n  flex-shrink: 0;\n  width: 100%;\n  max-width: 100%;\n  padding-right: calc(var(--bs-gutter-x) * .5);\n  padding-left: calc(var(--bs-gutter-x) * .5);\n  margin-top: var(--bs-gutter-y);\n}\n\n.col {\n  flex: 1 0 0%;\n}\n\n.row-cols-auto > * {\n  flex: 0 0 auto;\n  width: auto;\n}\n\n.row-cols-1 > * {\n  flex: 0 0 auto;\n  width: 100%;\n}\n\n.row-cols-2 > * {\n  flex: 0 0 auto;\n  width: 50%;\n}\n\n.row-cols-3 > * {\n  flex: 0 0 auto;\n  width: 33.3333333333%;\n}\n\n.row-cols-4 > * {\n  flex: 0 0 auto;\n  width: 25%;\n}\n\n.row-cols-5 > * {\n  flex: 0 0 auto;\n  width: 20%;\n}\n\n.row-cols-6 > * {\n  flex: 0 0 auto;\n  width: 16.6666666667%;\n}\n\n.col-auto {\n  flex: 0 0 auto;\n  width: auto;\n}\n\n.col-1 {\n  flex: 0 0 auto;\n  width: 8.33333333%;\n}\n\n.col-2 {\n  flex: 0 0 auto;\n  width: 16.66666667%;\n}\n\n.col-3 {\n  flex: 0 0 auto;\n  width: 25%;\n}\n\n.col-4 {\n  flex: 0 0 auto;\n  width: 33.33333333%;\n}\n\n.col-5 {\n  flex: 0 0 auto;\n  width: 41.66666667%;\n}\n\n.col-6 {\n  flex: 0 0 auto;\n  width: 50%;\n}\n\n.col-7 {\n  flex: 0 0 auto;\n  width: 58.33333333%;\n}\n\n.col-8 {\n  flex: 0 0 auto;\n  width: 66.66666667%;\n}\n\n.col-9 {\n  flex: 0 0 auto;\n  width: 75%;\n}\n\n.col-10 {\n  flex: 0 0 auto;\n  width: 83.33333333%;\n}\n\n.col-11 {\n  flex: 0 0 auto;\n  width: 91.66666667%;\n}\n\n.col-12 {\n  flex: 0 0 auto;\n  width: 100%;\n}\n\n.offset-1 {\n  margin-left: 8.33333333%;\n}\n\n.offset-2 {\n  margin-left: 16.66666667%;\n}\n\n.offset-3 {\n  margin-left: 25%;\n}\n\n.offset-4 {\n  margin-left: 33.33333333%;\n}\n\n.offset-5 {\n  margin-left: 41.66666667%;\n}\n\n.offset-6 {\n  margin-left: 50%;\n}\n\n.offset-7 {\n  margin-left: 58.33333333%;\n}\n\n.offset-8 {\n  margin-left: 66.66666667%;\n}\n\n.offset-9 {\n  margin-left: 75%;\n}\n\n.offset-10 {\n  margin-left: 83.33333333%;\n}\n\n.offset-11 {\n  margin-left: 91.66666667%;\n}\n\n.g-0,\n.gx-0 {\n  --bs-gutter-x: 0;\n}\n\n.g-0,\n.gy-0 {\n  --bs-gutter-y: 0;\n}\n\n.g-1,\n.gx-1 {\n  --bs-gutter-x: 0.25rem;\n}\n\n.g-1,\n.gy-1 {\n  --bs-gutter-y: 0.25rem;\n}\n\n.g-2,\n.gx-2 {\n  --bs-gutter-x: 0.5rem;\n}\n\n.g-2,\n.gy-2 {\n  --bs-gutter-y: 0.5rem;\n}\n\n.g-3,\n.gx-3 {\n  --bs-gutter-x: 1rem;\n}\n\n.g-3,\n.gy-3 {\n  --bs-gutter-y: 1rem;\n}\n\n.g-4,\n.gx-4 {\n  --bs-gutter-x: 1.5rem;\n}\n\n.g-4,\n.gy-4 {\n  --bs-gutter-y: 1.5rem;\n}\n\n.g-5,\n.gx-5 {\n  --bs-gutter-x: 3rem;\n}\n\n.g-5,\n.gy-5 {\n  --bs-gutter-y: 3rem;\n}\n\n@media (min-width: 576px) {\n  .col-sm {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-sm-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-sm-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-sm-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-sm-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-sm-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-sm-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-sm-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-sm-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-sm-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-sm-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-sm-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-sm-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-sm-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-sm-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-sm-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-sm-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-sm-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-sm-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-sm-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-sm-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-sm-0 {\n    margin-left: 0;\n  }\n\n  .offset-sm-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-sm-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-sm-3 {\n    margin-left: 25%;\n  }\n\n  .offset-sm-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-sm-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-sm-6 {\n    margin-left: 50%;\n  }\n\n  .offset-sm-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-sm-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-sm-9 {\n    margin-left: 75%;\n  }\n\n  .offset-sm-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-sm-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-sm-0,\n.gx-sm-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-sm-0,\n.gy-sm-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-sm-1,\n.gx-sm-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-sm-1,\n.gy-sm-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-sm-2,\n.gx-sm-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-sm-2,\n.gy-sm-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-sm-3,\n.gx-sm-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-sm-3,\n.gy-sm-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-sm-4,\n.gx-sm-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-sm-4,\n.gy-sm-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-sm-5,\n.gx-sm-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-sm-5,\n.gy-sm-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n@media (min-width: 768px) {\n  .col-md {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-md-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-md-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-md-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-md-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-md-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-md-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-md-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-md-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-md-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-md-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-md-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-md-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-md-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-md-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-md-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-md-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-md-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-md-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-md-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-md-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-md-0 {\n    margin-left: 0;\n  }\n\n  .offset-md-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-md-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-md-3 {\n    margin-left: 25%;\n  }\n\n  .offset-md-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-md-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-md-6 {\n    margin-left: 50%;\n  }\n\n  .offset-md-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-md-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-md-9 {\n    margin-left: 75%;\n  }\n\n  .offset-md-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-md-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-md-0,\n.gx-md-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-md-0,\n.gy-md-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-md-1,\n.gx-md-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-md-1,\n.gy-md-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-md-2,\n.gx-md-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-md-2,\n.gy-md-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-md-3,\n.gx-md-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-md-3,\n.gy-md-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-md-4,\n.gx-md-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-md-4,\n.gy-md-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-md-5,\n.gx-md-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-md-5,\n.gy-md-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n@media (min-width: 992px) {\n  .col-lg {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-lg-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-lg-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-lg-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-lg-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-lg-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-lg-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-lg-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-lg-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-lg-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-lg-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-lg-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-lg-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-lg-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-lg-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-lg-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-lg-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-lg-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-lg-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-lg-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-lg-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-lg-0 {\n    margin-left: 0;\n  }\n\n  .offset-lg-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-lg-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-lg-3 {\n    margin-left: 25%;\n  }\n\n  .offset-lg-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-lg-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-lg-6 {\n    margin-left: 50%;\n  }\n\n  .offset-lg-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-lg-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-lg-9 {\n    margin-left: 75%;\n  }\n\n  .offset-lg-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-lg-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-lg-0,\n.gx-lg-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-lg-0,\n.gy-lg-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-lg-1,\n.gx-lg-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-lg-1,\n.gy-lg-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-lg-2,\n.gx-lg-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-lg-2,\n.gy-lg-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-lg-3,\n.gx-lg-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-lg-3,\n.gy-lg-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-lg-4,\n.gx-lg-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-lg-4,\n.gy-lg-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-lg-5,\n.gx-lg-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-lg-5,\n.gy-lg-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n@media (min-width: 1200px) {\n  .col-xl {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-xl-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-xl-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-xl-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-xl-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-xl-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-xl-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-xl-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-xl-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-xl-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-xl-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-xl-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-xl-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-xl-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-xl-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-xl-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-xl-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-xl-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-xl-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-xl-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-xl-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-xl-0 {\n    margin-left: 0;\n  }\n\n  .offset-xl-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-xl-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-xl-3 {\n    margin-left: 25%;\n  }\n\n  .offset-xl-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-xl-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-xl-6 {\n    margin-left: 50%;\n  }\n\n  .offset-xl-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-xl-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-xl-9 {\n    margin-left: 75%;\n  }\n\n  .offset-xl-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-xl-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-xl-0,\n.gx-xl-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-xl-0,\n.gy-xl-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-xl-1,\n.gx-xl-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-xl-1,\n.gy-xl-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-xl-2,\n.gx-xl-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-xl-2,\n.gy-xl-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-xl-3,\n.gx-xl-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-xl-3,\n.gy-xl-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-xl-4,\n.gx-xl-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-xl-4,\n.gy-xl-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-xl-5,\n.gx-xl-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-xl-5,\n.gy-xl-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n@media (min-width: 1400px) {\n  .col-xxl {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-xxl-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-xxl-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-xxl-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-xxl-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-xxl-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-xxl-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-xxl-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-xxl-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-xxl-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-xxl-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-xxl-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-xxl-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-xxl-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-xxl-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-xxl-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-xxl-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-xxl-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-xxl-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-xxl-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-xxl-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-xxl-0 {\n    margin-left: 0;\n  }\n\n  .offset-xxl-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-xxl-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-xxl-3 {\n    margin-left: 25%;\n  }\n\n  .offset-xxl-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-xxl-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-xxl-6 {\n    margin-left: 50%;\n  }\n\n  .offset-xxl-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-xxl-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-xxl-9 {\n    margin-left: 75%;\n  }\n\n  .offset-xxl-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-xxl-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-xxl-0,\n.gx-xxl-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-xxl-0,\n.gy-xxl-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-xxl-1,\n.gx-xxl-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-xxl-1,\n.gy-xxl-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-xxl-2,\n.gx-xxl-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-xxl-2,\n.gy-xxl-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-xxl-3,\n.gx-xxl-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-xxl-3,\n.gy-xxl-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-xxl-4,\n.gx-xxl-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-xxl-4,\n.gy-xxl-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-xxl-5,\n.gx-xxl-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-xxl-5,\n.gy-xxl-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n.table {\n  --bs-table-bg: transparent;\n  --bs-table-accent-bg: transparent;\n  --bs-table-striped-color: #212529;\n  --bs-table-striped-bg: rgba(0, 0, 0, 0.05);\n  --bs-table-active-color: #212529;\n  --bs-table-active-bg: rgba(0, 0, 0, 0.1);\n  --bs-table-hover-color: #212529;\n  --bs-table-hover-bg: rgba(0, 0, 0, 0.075);\n  width: 100%;\n  margin-bottom: 1rem;\n  color: #212529;\n  vertical-align: top;\n  border-color: #dee2e6;\n}\n.table > :not(caption) > * > * {\n  padding: 0.5rem 0.5rem;\n  background-color: var(--bs-table-bg);\n  border-bottom-width: 1px;\n  box-shadow: inset 0 0 0 9999px var(--bs-table-accent-bg);\n}\n.table > tbody {\n  vertical-align: inherit;\n}\n.table > thead {\n  vertical-align: bottom;\n}\n.table > :not(:last-child) > :last-child > * {\n  border-bottom-color: currentColor;\n}\n\n.caption-top {\n  caption-side: top;\n}\n\n.table-sm > :not(caption) > * > * {\n  padding: 0.25rem 0.25rem;\n}\n\n.table-bordered > :not(caption) > * {\n  border-width: 1px 0;\n}\n.table-bordered > :not(caption) > * > * {\n  border-width: 0 1px;\n}\n\n.table-borderless > :not(caption) > * > * {\n  border-bottom-width: 0;\n}\n\n.table-striped > tbody > tr:nth-of-type(odd) {\n  --bs-table-accent-bg: var(--bs-table-striped-bg);\n  color: var(--bs-table-striped-color);\n}\n\n.table-active {\n  --bs-table-accent-bg: var(--bs-table-active-bg);\n  color: var(--bs-table-active-color);\n}\n\n.table-hover > tbody > tr:hover {\n  --bs-table-accent-bg: var(--bs-table-hover-bg);\n  color: var(--bs-table-hover-color);\n}\n\n.table-primary {\n  --bs-table-bg: #cfe2ff;\n  --bs-table-striped-bg: #c5d7f2;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #bacbe6;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #bfd1ec;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #bacbe6;\n}\n\n.table-secondary {\n  --bs-table-bg: #e2e3e5;\n  --bs-table-striped-bg: #d7d8da;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #cbccce;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #d1d2d4;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #cbccce;\n}\n\n.table-success {\n  --bs-table-bg: #d1e7dd;\n  --bs-table-striped-bg: #c7dbd2;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #bcd0c7;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #c1d6cc;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #bcd0c7;\n}\n\n.table-info {\n  --bs-table-bg: #cff4fc;\n  --bs-table-striped-bg: #c5e8ef;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #badce3;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #bfe2e9;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #badce3;\n}\n\n.table-warning {\n  --bs-table-bg: #fff3cd;\n  --bs-table-striped-bg: #f2e7c3;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #e6dbb9;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #ece1be;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #e6dbb9;\n}\n\n.table-danger {\n  --bs-table-bg: #f8d7da;\n  --bs-table-striped-bg: #eccccf;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #dfc2c4;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #e5c7ca;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #dfc2c4;\n}\n\n.table-light {\n  --bs-table-bg: #f8f9fa;\n  --bs-table-striped-bg: #ecedee;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #dfe0e1;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #e5e6e7;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #dfe0e1;\n}\n\n.table-dark {\n  --bs-table-bg: #212529;\n  --bs-table-striped-bg: #2c3034;\n  --bs-table-striped-color: #fff;\n  --bs-table-active-bg: #373b3e;\n  --bs-table-active-color: #fff;\n  --bs-table-hover-bg: #323539;\n  --bs-table-hover-color: #fff;\n  color: #fff;\n  border-color: #373b3e;\n}\n\n.table-responsive {\n  overflow-x: auto;\n  -webkit-overflow-scrolling: touch;\n}\n\n@media (max-width: 575.98px) {\n  .table-responsive-sm {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 767.98px) {\n  .table-responsive-md {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 991.98px) {\n  .table-responsive-lg {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 1199.98px) {\n  .table-responsive-xl {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 1399.98px) {\n  .table-responsive-xxl {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n.form-label {\n  margin-bottom: 0.5rem;\n}\n\n.col-form-label {\n  padding-top: calc(0.375rem + 1px);\n  padding-bottom: calc(0.375rem + 1px);\n  margin-bottom: 0;\n  font-size: inherit;\n  line-height: 1.5;\n}\n\n.col-form-label-lg {\n  padding-top: calc(0.5rem + 1px);\n  padding-bottom: calc(0.5rem + 1px);\n  font-size: 1.25rem;\n}\n\n.col-form-label-sm {\n  padding-top: calc(0.25rem + 1px);\n  padding-bottom: calc(0.25rem + 1px);\n  font-size: 0.875rem;\n}\n\n.form-text {\n  margin-top: 0.25rem;\n  font-size: 0.875em;\n  color: #6c757d;\n}\n\n.form-control {\n  display: block;\n  width: 100%;\n  padding: 0.375rem 0.75rem;\n  font-size: 1rem;\n  font-weight: 400;\n  line-height: 1.5;\n  color: #212529;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 1px solid #ced4da;\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n  border-radius: 0.25rem;\n  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-control {\n    transition: none;\n  }\n}\n.form-control[type=file] {\n  overflow: hidden;\n}\n.form-control[type=file]:not(:disabled):not([readonly]) {\n  cursor: pointer;\n}\n.form-control:focus {\n  color: #212529;\n  background-color: #fff;\n  border-color: #86b7fe;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-control::-webkit-date-and-time-value {\n  height: 1.5em;\n}\n.form-control::-moz-placeholder {\n  color: #6c757d;\n  opacity: 1;\n}\n.form-control::placeholder {\n  color: #6c757d;\n  opacity: 1;\n}\n.form-control:disabled, .form-control[readonly] {\n  background-color: #e9ecef;\n  opacity: 1;\n}\n.form-control::file-selector-button {\n  padding: 0.375rem 0.75rem;\n  margin: -0.375rem -0.75rem;\n  -webkit-margin-end: 0.75rem;\n  margin-inline-end: 0.75rem;\n  color: #212529;\n  background-color: #e9ecef;\n  pointer-events: none;\n  border-color: inherit;\n  border-style: solid;\n  border-width: 0;\n  border-inline-end-width: 1px;\n  border-radius: 0;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-control::file-selector-button {\n    transition: none;\n  }\n}\n.form-control:hover:not(:disabled):not([readonly])::file-selector-button {\n  background-color: #dde0e3;\n}\n.form-control::-webkit-file-upload-button {\n  padding: 0.375rem 0.75rem;\n  margin: -0.375rem -0.75rem;\n  -webkit-margin-end: 0.75rem;\n  margin-inline-end: 0.75rem;\n  color: #212529;\n  background-color: #e9ecef;\n  pointer-events: none;\n  border-color: inherit;\n  border-style: solid;\n  border-width: 0;\n  border-inline-end-width: 1px;\n  border-radius: 0;\n  -webkit-transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-control::-webkit-file-upload-button {\n    -webkit-transition: none;\n    transition: none;\n  }\n}\n.form-control:hover:not(:disabled):not([readonly])::-webkit-file-upload-button {\n  background-color: #dde0e3;\n}\n\n.form-control-plaintext {\n  display: block;\n  width: 100%;\n  padding: 0.375rem 0;\n  margin-bottom: 0;\n  line-height: 1.5;\n  color: #212529;\n  background-color: transparent;\n  border: solid transparent;\n  border-width: 1px 0;\n}\n.form-control-plaintext.form-control-sm, .form-control-plaintext.form-control-lg {\n  padding-right: 0;\n  padding-left: 0;\n}\n\n.form-control-sm {\n  min-height: calc(1.5em + 0.5rem + 2px);\n  padding: 0.25rem 0.5rem;\n  font-size: 0.875rem;\n  border-radius: 0.2rem;\n}\n.form-control-sm::file-selector-button {\n  padding: 0.25rem 0.5rem;\n  margin: -0.25rem -0.5rem;\n  -webkit-margin-end: 0.5rem;\n  margin-inline-end: 0.5rem;\n}\n.form-control-sm::-webkit-file-upload-button {\n  padding: 0.25rem 0.5rem;\n  margin: -0.25rem -0.5rem;\n  -webkit-margin-end: 0.5rem;\n  margin-inline-end: 0.5rem;\n}\n\n.form-control-lg {\n  min-height: calc(1.5em + 1rem + 2px);\n  padding: 0.5rem 1rem;\n  font-size: 1.25rem;\n  border-radius: 0.3rem;\n}\n.form-control-lg::file-selector-button {\n  padding: 0.5rem 1rem;\n  margin: -0.5rem -1rem;\n  -webkit-margin-end: 1rem;\n  margin-inline-end: 1rem;\n}\n.form-control-lg::-webkit-file-upload-button {\n  padding: 0.5rem 1rem;\n  margin: -0.5rem -1rem;\n  -webkit-margin-end: 1rem;\n  margin-inline-end: 1rem;\n}\n\ntextarea.form-control {\n  min-height: calc(1.5em + 0.75rem + 2px);\n}\ntextarea.form-control-sm {\n  min-height: calc(1.5em + 0.5rem + 2px);\n}\ntextarea.form-control-lg {\n  min-height: calc(1.5em + 1rem + 2px);\n}\n\n.form-control-color {\n  width: 3rem;\n  height: auto;\n  padding: 0.375rem;\n}\n.form-control-color:not(:disabled):not([readonly]) {\n  cursor: pointer;\n}\n.form-control-color::-moz-color-swatch {\n  height: 1.5em;\n  border-radius: 0.25rem;\n}\n.form-control-color::-webkit-color-swatch {\n  height: 1.5em;\n  border-radius: 0.25rem;\n}\n\n.form-select {\n  display: block;\n  width: 100%;\n  padding: 0.375rem 2.25rem 0.375rem 0.75rem;\n  -moz-padding-start: calc(0.75rem - 3px);\n  font-size: 1rem;\n  font-weight: 400;\n  line-height: 1.5;\n  color: #212529;\n  background-color: #fff;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e\");\n  background-repeat: no-repeat;\n  background-position: right 0.75rem center;\n  background-size: 16px 12px;\n  border: 1px solid #ced4da;\n  border-radius: 0.25rem;\n  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-select {\n    transition: none;\n  }\n}\n.form-select:focus {\n  border-color: #86b7fe;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-select[multiple], .form-select[size]:not([size=\"1\"]) {\n  padding-right: 0.75rem;\n  background-image: none;\n}\n.form-select:disabled {\n  background-color: #e9ecef;\n}\n.form-select:-moz-focusring {\n  color: transparent;\n  text-shadow: 0 0 0 #212529;\n}\n\n.form-select-sm {\n  padding-top: 0.25rem;\n  padding-bottom: 0.25rem;\n  padding-left: 0.5rem;\n  font-size: 0.875rem;\n}\n\n.form-select-lg {\n  padding-top: 0.5rem;\n  padding-bottom: 0.5rem;\n  padding-left: 1rem;\n  font-size: 1.25rem;\n}\n\n.form-check {\n  display: block;\n  min-height: 1.5rem;\n  padding-left: 1.5em;\n  margin-bottom: 0.125rem;\n}\n.form-check .form-check-input {\n  float: left;\n  margin-left: -1.5em;\n}\n\n.form-check-input {\n  width: 1em;\n  height: 1em;\n  margin-top: 0.25em;\n  vertical-align: top;\n  background-color: #fff;\n  background-repeat: no-repeat;\n  background-position: center;\n  background-size: contain;\n  border: 1px solid rgba(0, 0, 0, 0.25);\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n  -webkit-print-color-adjust: exact;\n  color-adjust: exact;\n}\n.form-check-input[type=checkbox] {\n  border-radius: 0.25em;\n}\n.form-check-input[type=radio] {\n  border-radius: 50%;\n}\n.form-check-input:active {\n  filter: brightness(90%);\n}\n.form-check-input:focus {\n  border-color: #86b7fe;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-check-input:checked {\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.form-check-input:checked[type=checkbox] {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e\");\n}\n.form-check-input:checked[type=radio] {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23fff'/%3e%3c/svg%3e\");\n}\n.form-check-input[type=checkbox]:indeterminate {\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10h8'/%3e%3c/svg%3e\");\n}\n.form-check-input:disabled {\n  pointer-events: none;\n  filter: none;\n  opacity: 0.5;\n}\n.form-check-input[disabled] ~ .form-check-label, .form-check-input:disabled ~ .form-check-label {\n  opacity: 0.5;\n}\n\n.form-switch {\n  padding-left: 2.5em;\n}\n.form-switch .form-check-input {\n  width: 2em;\n  margin-left: -2.5em;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='rgba%280, 0, 0, 0.25%29'/%3e%3c/svg%3e\");\n  background-position: left center;\n  border-radius: 2em;\n  transition: background-position 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-switch .form-check-input {\n    transition: none;\n  }\n}\n.form-switch .form-check-input:focus {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%2386b7fe'/%3e%3c/svg%3e\");\n}\n.form-switch .form-check-input:checked {\n  background-position: right center;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e\");\n}\n\n.form-check-inline {\n  display: inline-block;\n  margin-right: 1rem;\n}\n\n.btn-check {\n  position: absolute;\n  clip: rect(0, 0, 0, 0);\n  pointer-events: none;\n}\n.btn-check[disabled] + .btn, .btn-check:disabled + .btn {\n  pointer-events: none;\n  filter: none;\n  opacity: 0.65;\n}\n\n.form-range {\n  width: 100%;\n  height: 1.5rem;\n  padding: 0;\n  background-color: transparent;\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n}\n.form-range:focus {\n  outline: 0;\n}\n.form-range:focus::-webkit-slider-thumb {\n  box-shadow: 0 0 0 1px #fff, 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-range:focus::-moz-range-thumb {\n  box-shadow: 0 0 0 1px #fff, 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-range::-moz-focus-outer {\n  border: 0;\n}\n.form-range::-webkit-slider-thumb {\n  width: 1rem;\n  height: 1rem;\n  margin-top: -0.25rem;\n  background-color: #0d6efd;\n  border: 0;\n  border-radius: 1rem;\n  -webkit-transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  -webkit-appearance: none;\n  appearance: none;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-range::-webkit-slider-thumb {\n    -webkit-transition: none;\n    transition: none;\n  }\n}\n.form-range::-webkit-slider-thumb:active {\n  background-color: #b6d4fe;\n}\n.form-range::-webkit-slider-runnable-track {\n  width: 100%;\n  height: 0.5rem;\n  color: transparent;\n  cursor: pointer;\n  background-color: #dee2e6;\n  border-color: transparent;\n  border-radius: 1rem;\n}\n.form-range::-moz-range-thumb {\n  width: 1rem;\n  height: 1rem;\n  background-color: #0d6efd;\n  border: 0;\n  border-radius: 1rem;\n  -moz-transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  -moz-appearance: none;\n  appearance: none;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-range::-moz-range-thumb {\n    -moz-transition: none;\n    transition: none;\n  }\n}\n.form-range::-moz-range-thumb:active {\n  background-color: #b6d4fe;\n}\n.form-range::-moz-range-track {\n  width: 100%;\n  height: 0.5rem;\n  color: transparent;\n  cursor: pointer;\n  background-color: #dee2e6;\n  border-color: transparent;\n  border-radius: 1rem;\n}\n.form-range:disabled {\n  pointer-events: none;\n}\n.form-range:disabled::-webkit-slider-thumb {\n  background-color: #adb5bd;\n}\n.form-range:disabled::-moz-range-thumb {\n  background-color: #adb5bd;\n}\n\n.form-floating {\n  position: relative;\n}\n.form-floating > .form-control,\n.form-floating > .form-select {\n  height: calc(3.5rem + 2px);\n  line-height: 1.25;\n}\n.form-floating > label {\n  position: absolute;\n  top: 0;\n  left: 0;\n  height: 100%;\n  padding: 1rem 0.75rem;\n  pointer-events: none;\n  border: 1px solid transparent;\n  transform-origin: 0 0;\n  transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-floating > label {\n    transition: none;\n  }\n}\n.form-floating > .form-control {\n  padding: 1rem 0.75rem;\n}\n.form-floating > .form-control::-moz-placeholder {\n  color: transparent;\n}\n.form-floating > .form-control::placeholder {\n  color: transparent;\n}\n.form-floating > .form-control:not(:-moz-placeholder-shown) {\n  padding-top: 1.625rem;\n  padding-bottom: 0.625rem;\n}\n.form-floating > .form-control:focus, .form-floating > .form-control:not(:placeholder-shown) {\n  padding-top: 1.625rem;\n  padding-bottom: 0.625rem;\n}\n.form-floating > .form-control:-webkit-autofill {\n  padding-top: 1.625rem;\n  padding-bottom: 0.625rem;\n}\n.form-floating > .form-select {\n  padding-top: 1.625rem;\n  padding-bottom: 0.625rem;\n}\n.form-floating > .form-control:not(:-moz-placeholder-shown) ~ label {\n  opacity: 0.65;\n  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);\n}\n.form-floating > .form-control:focus ~ label,\n.form-floating > .form-control:not(:placeholder-shown) ~ label,\n.form-floating > .form-select ~ label {\n  opacity: 0.65;\n  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);\n}\n.form-floating > .form-control:-webkit-autofill ~ label {\n  opacity: 0.65;\n  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);\n}\n\n.input-group {\n  position: relative;\n  display: flex;\n  flex-wrap: wrap;\n  align-items: stretch;\n  width: 100%;\n}\n.input-group > .form-control,\n.input-group > .form-select {\n  position: relative;\n  flex: 1 1 auto;\n  width: 1%;\n  min-width: 0;\n}\n.input-group > .form-control:focus,\n.input-group > .form-select:focus {\n  z-index: 3;\n}\n.input-group .btn {\n  position: relative;\n  z-index: 2;\n}\n.input-group .btn:focus {\n  z-index: 3;\n}\n\n.input-group-text {\n  display: flex;\n  align-items: center;\n  padding: 0.375rem 0.75rem;\n  font-size: 1rem;\n  font-weight: 400;\n  line-height: 1.5;\n  color: #212529;\n  text-align: center;\n  white-space: nowrap;\n  background-color: #e9ecef;\n  border: 1px solid #ced4da;\n  border-radius: 0.25rem;\n}\n\n.input-group-lg > .form-control,\n.input-group-lg > .form-select,\n.input-group-lg > .input-group-text,\n.input-group-lg > .btn {\n  padding: 0.5rem 1rem;\n  font-size: 1.25rem;\n  border-radius: 0.3rem;\n}\n\n.input-group-sm > .form-control,\n.input-group-sm > .form-select,\n.input-group-sm > .input-group-text,\n.input-group-sm > .btn {\n  padding: 0.25rem 0.5rem;\n  font-size: 0.875rem;\n  border-radius: 0.2rem;\n}\n\n.input-group-lg > .form-select,\n.input-group-sm > .form-select {\n  padding-right: 3rem;\n}\n\n.input-group:not(.has-validation) > :not(:last-child):not(.dropdown-toggle):not(.dropdown-menu),\n.input-group:not(.has-validation) > .dropdown-toggle:nth-last-child(n+3) {\n  border-top-right-radius: 0;\n  border-bottom-right-radius: 0;\n}\n.input-group.has-validation > :nth-last-child(n+3):not(.dropdown-toggle):not(.dropdown-menu),\n.input-group.has-validation > .dropdown-toggle:nth-last-child(n+4) {\n  border-top-right-radius: 0;\n  border-bottom-right-radius: 0;\n}\n.input-group > :not(:first-child):not(.dropdown-menu):not(.valid-tooltip):not(.valid-feedback):not(.invalid-tooltip):not(.invalid-feedback) {\n  margin-left: -1px;\n  border-top-left-radius: 0;\n  border-bottom-left-radius: 0;\n}\n\n.valid-feedback {\n  display: none;\n  width: 100%;\n  margin-top: 0.25rem;\n  font-size: 0.875em;\n  color: #198754;\n}\n\n.valid-tooltip {\n  position: absolute;\n  top: 100%;\n  z-index: 5;\n  display: none;\n  max-width: 100%;\n  padding: 0.25rem 0.5rem;\n  margin-top: 0.1rem;\n  font-size: 0.875rem;\n  color: #fff;\n  background-color: rgba(25, 135, 84, 0.9);\n  border-radius: 0.25rem;\n}\n\n.was-validated :valid ~ .valid-feedback,\n.was-validated :valid ~ .valid-tooltip,\n.is-valid ~ .valid-feedback,\n.is-valid ~ .valid-tooltip {\n  display: block;\n}\n\n.was-validated .form-control:valid, .form-control.is-valid {\n  border-color: #198754;\n  padding-right: calc(1.5em + 0.75rem);\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%23198754' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e\");\n  background-repeat: no-repeat;\n  background-position: right calc(0.375em + 0.1875rem) center;\n  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);\n}\n.was-validated .form-control:valid:focus, .form-control.is-valid:focus {\n  border-color: #198754;\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);\n}\n\n.was-validated textarea.form-control:valid, textarea.form-control.is-valid {\n  padding-right: calc(1.5em + 0.75rem);\n  background-position: top calc(0.375em + 0.1875rem) right calc(0.375em + 0.1875rem);\n}\n\n.was-validated .form-select:valid, .form-select.is-valid {\n  border-color: #198754;\n}\n.was-validated .form-select:valid:not([multiple]):not([size]), .was-validated .form-select:valid:not([multiple])[size=\"1\"], .form-select.is-valid:not([multiple]):not([size]), .form-select.is-valid:not([multiple])[size=\"1\"] {\n  padding-right: 4.125rem;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e\"), url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%23198754' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e\");\n  background-position: right 0.75rem center, center right 2.25rem;\n  background-size: 16px 12px, calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);\n}\n.was-validated .form-select:valid:focus, .form-select.is-valid:focus {\n  border-color: #198754;\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);\n}\n\n.was-validated .form-check-input:valid, .form-check-input.is-valid {\n  border-color: #198754;\n}\n.was-validated .form-check-input:valid:checked, .form-check-input.is-valid:checked {\n  background-color: #198754;\n}\n.was-validated .form-check-input:valid:focus, .form-check-input.is-valid:focus {\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);\n}\n.was-validated .form-check-input:valid ~ .form-check-label, .form-check-input.is-valid ~ .form-check-label {\n  color: #198754;\n}\n\n.form-check-inline .form-check-input ~ .valid-feedback {\n  margin-left: 0.5em;\n}\n\n.was-validated .input-group .form-control:valid, .input-group .form-control.is-valid,\n.was-validated .input-group .form-select:valid,\n.input-group .form-select.is-valid {\n  z-index: 1;\n}\n.was-validated .input-group .form-control:valid:focus, .input-group .form-control.is-valid:focus,\n.was-validated .input-group .form-select:valid:focus,\n.input-group .form-select.is-valid:focus {\n  z-index: 3;\n}\n\n.invalid-feedback {\n  display: none;\n  width: 100%;\n  margin-top: 0.25rem;\n  font-size: 0.875em;\n  color: #dc3545;\n}\n\n.invalid-tooltip {\n  position: absolute;\n  top: 100%;\n  z-index: 5;\n  display: none;\n  max-width: 100%;\n  padding: 0.25rem 0.5rem;\n  margin-top: 0.1rem;\n  font-size: 0.875rem;\n  color: #fff;\n  background-color: rgba(220, 53, 69, 0.9);\n  border-radius: 0.25rem;\n}\n\n.was-validated :invalid ~ .invalid-feedback,\n.was-validated :invalid ~ .invalid-tooltip,\n.is-invalid ~ .invalid-feedback,\n.is-invalid ~ .invalid-tooltip {\n  display: block;\n}\n\n.was-validated .form-control:invalid, .form-control.is-invalid {\n  border-color: #dc3545;\n  padding-right: calc(1.5em + 0.75rem);\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e\");\n  background-repeat: no-repeat;\n  background-position: right calc(0.375em + 0.1875rem) center;\n  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);\n}\n.was-validated .form-control:invalid:focus, .form-control.is-invalid:focus {\n  border-color: #dc3545;\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);\n}\n\n.was-validated textarea.form-control:invalid, textarea.form-control.is-invalid {\n  padding-right: calc(1.5em + 0.75rem);\n  background-position: top calc(0.375em + 0.1875rem) right calc(0.375em + 0.1875rem);\n}\n\n.was-validated .form-select:invalid, .form-select.is-invalid {\n  border-color: #dc3545;\n}\n.was-validated .form-select:invalid:not([multiple]):not([size]), .was-validated .form-select:invalid:not([multiple])[size=\"1\"], .form-select.is-invalid:not([multiple]):not([size]), .form-select.is-invalid:not([multiple])[size=\"1\"] {\n  padding-right: 4.125rem;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e\"), url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e\");\n  background-position: right 0.75rem center, center right 2.25rem;\n  background-size: 16px 12px, calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);\n}\n.was-validated .form-select:invalid:focus, .form-select.is-invalid:focus {\n  border-color: #dc3545;\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);\n}\n\n.was-validated .form-check-input:invalid, .form-check-input.is-invalid {\n  border-color: #dc3545;\n}\n.was-validated .form-check-input:invalid:checked, .form-check-input.is-invalid:checked {\n  background-color: #dc3545;\n}\n.was-validated .form-check-input:invalid:focus, .form-check-input.is-invalid:focus {\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);\n}\n.was-validated .form-check-input:invalid ~ .form-check-label, .form-check-input.is-invalid ~ .form-check-label {\n  color: #dc3545;\n}\n\n.form-check-inline .form-check-input ~ .invalid-feedback {\n  margin-left: 0.5em;\n}\n\n.was-validated .input-group .form-control:invalid, .input-group .form-control.is-invalid,\n.was-validated .input-group .form-select:invalid,\n.input-group .form-select.is-invalid {\n  z-index: 2;\n}\n.was-validated .input-group .form-control:invalid:focus, .input-group .form-control.is-invalid:focus,\n.was-validated .input-group .form-select:invalid:focus,\n.input-group .form-select.is-invalid:focus {\n  z-index: 3;\n}\n\n.btn {\n  display: inline-block;\n  font-weight: 400;\n  line-height: 1.5;\n  color: #212529;\n  text-align: center;\n  text-decoration: none;\n  vertical-align: middle;\n  cursor: pointer;\n  -webkit-user-select: none;\n  -moz-user-select: none;\n  user-select: none;\n  background-color: transparent;\n  border: 1px solid transparent;\n  padding: 0.375rem 0.75rem;\n  font-size: 1rem;\n  border-radius: 0.25rem;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .btn {\n    transition: none;\n  }\n}\n.btn:hover {\n  color: #212529;\n}\n.btn-check:focus + .btn, .btn:focus {\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.btn:disabled, .btn.disabled, fieldset:disabled .btn {\n  pointer-events: none;\n  opacity: 0.65;\n}\n\n.btn-primary {\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.btn-primary:hover {\n  color: #fff;\n  background-color: #0b5ed7;\n  border-color: #0a58ca;\n}\n.btn-check:focus + .btn-primary, .btn-primary:focus {\n  color: #fff;\n  background-color: #0b5ed7;\n  border-color: #0a58ca;\n  box-shadow: 0 0 0 0.25rem rgba(49, 132, 253, 0.5);\n}\n.btn-check:checked + .btn-primary, .btn-check:active + .btn-primary, .btn-primary:active, .btn-primary.active, .show > .btn-primary.dropdown-toggle {\n  color: #fff;\n  background-color: #0a58ca;\n  border-color: #0a53be;\n}\n.btn-check:checked + .btn-primary:focus, .btn-check:active + .btn-primary:focus, .btn-primary:active:focus, .btn-primary.active:focus, .show > .btn-primary.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(49, 132, 253, 0.5);\n}\n.btn-primary:disabled, .btn-primary.disabled {\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n\n.btn-secondary {\n  color: #fff;\n  background-color: #6c757d;\n  border-color: #6c757d;\n}\n.btn-secondary:hover {\n  color: #fff;\n  background-color: #5c636a;\n  border-color: #565e64;\n}\n.btn-check:focus + .btn-secondary, .btn-secondary:focus {\n  color: #fff;\n  background-color: #5c636a;\n  border-color: #565e64;\n  box-shadow: 0 0 0 0.25rem rgba(130, 138, 145, 0.5);\n}\n.btn-check:checked + .btn-secondary, .btn-check:active + .btn-secondary, .btn-secondary:active, .btn-secondary.active, .show > .btn-secondary.dropdown-toggle {\n  color: #fff;\n  background-color: #565e64;\n  border-color: #51585e;\n}\n.btn-check:checked + .btn-secondary:focus, .btn-check:active + .btn-secondary:focus, .btn-secondary:active:focus, .btn-secondary.active:focus, .show > .btn-secondary.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(130, 138, 145, 0.5);\n}\n.btn-secondary:disabled, .btn-secondary.disabled {\n  color: #fff;\n  background-color: #6c757d;\n  border-color: #6c757d;\n}\n\n.btn-success {\n  color: #fff;\n  background-color: #198754;\n  border-color: #198754;\n}\n.btn-success:hover {\n  color: #fff;\n  background-color: #157347;\n  border-color: #146c43;\n}\n.btn-check:focus + .btn-success, .btn-success:focus {\n  color: #fff;\n  background-color: #157347;\n  border-color: #146c43;\n  box-shadow: 0 0 0 0.25rem rgba(60, 153, 110, 0.5);\n}\n.btn-check:checked + .btn-success, .btn-check:active + .btn-success, .btn-success:active, .btn-success.active, .show > .btn-success.dropdown-toggle {\n  color: #fff;\n  background-color: #146c43;\n  border-color: #13653f;\n}\n.btn-check:checked + .btn-success:focus, .btn-check:active + .btn-success:focus, .btn-success:active:focus, .btn-success.active:focus, .show > .btn-success.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(60, 153, 110, 0.5);\n}\n.btn-success:disabled, .btn-success.disabled {\n  color: #fff;\n  background-color: #198754;\n  border-color: #198754;\n}\n\n.btn-info {\n  color: #000;\n  background-color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n.btn-info:hover {\n  color: #000;\n  background-color: #31d2f2;\n  border-color: #25cff2;\n}\n.btn-check:focus + .btn-info, .btn-info:focus {\n  color: #000;\n  background-color: #31d2f2;\n  border-color: #25cff2;\n  box-shadow: 0 0 0 0.25rem rgba(11, 172, 204, 0.5);\n}\n.btn-check:checked + .btn-info, .btn-check:active + .btn-info, .btn-info:active, .btn-info.active, .show > .btn-info.dropdown-toggle {\n  color: #000;\n  background-color: #3dd5f3;\n  border-color: #25cff2;\n}\n.btn-check:checked + .btn-info:focus, .btn-check:active + .btn-info:focus, .btn-info:active:focus, .btn-info.active:focus, .show > .btn-info.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(11, 172, 204, 0.5);\n}\n.btn-info:disabled, .btn-info.disabled {\n  color: #000;\n  background-color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n\n.btn-warning {\n  color: #000;\n  background-color: #ffc107;\n  border-color: #ffc107;\n}\n.btn-warning:hover {\n  color: #000;\n  background-color: #ffca2c;\n  border-color: #ffc720;\n}\n.btn-check:focus + .btn-warning, .btn-warning:focus {\n  color: #000;\n  background-color: #ffca2c;\n  border-color: #ffc720;\n  box-shadow: 0 0 0 0.25rem rgba(217, 164, 6, 0.5);\n}\n.btn-check:checked + .btn-warning, .btn-check:active + .btn-warning, .btn-warning:active, .btn-warning.active, .show > .btn-warning.dropdown-toggle {\n  color: #000;\n  background-color: #ffcd39;\n  border-color: #ffc720;\n}\n.btn-check:checked + .btn-warning:focus, .btn-check:active + .btn-warning:focus, .btn-warning:active:focus, .btn-warning.active:focus, .show > .btn-warning.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(217, 164, 6, 0.5);\n}\n.btn-warning:disabled, .btn-warning.disabled {\n  color: #000;\n  background-color: #ffc107;\n  border-color: #ffc107;\n}\n\n.btn-danger {\n  color: #fff;\n  background-color: #dc3545;\n  border-color: #dc3545;\n}\n.btn-danger:hover {\n  color: #fff;\n  background-color: #bb2d3b;\n  border-color: #b02a37;\n}\n.btn-check:focus + .btn-danger, .btn-danger:focus {\n  color: #fff;\n  background-color: #bb2d3b;\n  border-color: #b02a37;\n  box-shadow: 0 0 0 0.25rem rgba(225, 83, 97, 0.5);\n}\n.btn-check:checked + .btn-danger, .btn-check:active + .btn-danger, .btn-danger:active, .btn-danger.active, .show > .btn-danger.dropdown-toggle {\n  color: #fff;\n  background-color: #b02a37;\n  border-color: #a52834;\n}\n.btn-check:checked + .btn-danger:focus, .btn-check:active + .btn-danger:focus, .btn-danger:active:focus, .btn-danger.active:focus, .show > .btn-danger.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(225, 83, 97, 0.5);\n}\n.btn-danger:disabled, .btn-danger.disabled {\n  color: #fff;\n  background-color: #dc3545;\n  border-color: #dc3545;\n}\n\n.btn-light {\n  color: #000;\n  background-color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n.btn-light:hover {\n  color: #000;\n  background-color: #f9fafb;\n  border-color: #f9fafb;\n}\n.btn-check:focus + .btn-light, .btn-light:focus {\n  color: #000;\n  background-color: #f9fafb;\n  border-color: #f9fafb;\n  box-shadow: 0 0 0 0.25rem rgba(211, 212, 213, 0.5);\n}\n.btn-check:checked + .btn-light, .btn-check:active + .btn-light, .btn-light:active, .btn-light.active, .show > .btn-light.dropdown-toggle {\n  color: #000;\n  background-color: #f9fafb;\n  border-color: #f9fafb;\n}\n.btn-check:checked + .btn-light:focus, .btn-check:active + .btn-light:focus, .btn-light:active:focus, .btn-light.active:focus, .show > .btn-light.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(211, 212, 213, 0.5);\n}\n.btn-light:disabled, .btn-light.disabled {\n  color: #000;\n  background-color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n\n.btn-dark {\n  color: #fff;\n  background-color: #212529;\n  border-color: #212529;\n}\n.btn-dark:hover {\n  color: #fff;\n  background-color: #1c1f23;\n  border-color: #1a1e21;\n}\n.btn-check:focus + .btn-dark, .btn-dark:focus {\n  color: #fff;\n  background-color: #1c1f23;\n  border-color: #1a1e21;\n  box-shadow: 0 0 0 0.25rem rgba(66, 70, 73, 0.5);\n}\n.btn-check:checked + .btn-dark, .btn-check:active + .btn-dark, .btn-dark:active, .btn-dark.active, .show > .btn-dark.dropdown-toggle {\n  color: #fff;\n  background-color: #1a1e21;\n  border-color: #191c1f;\n}\n.btn-check:checked + .btn-dark:focus, .btn-check:active + .btn-dark:focus, .btn-dark:active:focus, .btn-dark.active:focus, .show > .btn-dark.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(66, 70, 73, 0.5);\n}\n.btn-dark:disabled, .btn-dark.disabled {\n  color: #fff;\n  background-color: #212529;\n  border-color: #212529;\n}\n\n.btn-outline-primary {\n  color: #0d6efd;\n  border-color: #0d6efd;\n}\n.btn-outline-primary:hover {\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.btn-check:focus + .btn-outline-primary, .btn-outline-primary:focus {\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.5);\n}\n.btn-check:checked + .btn-outline-primary, .btn-check:active + .btn-outline-primary, .btn-outline-primary:active, .btn-outline-primary.active, .btn-outline-primary.dropdown-toggle.show {\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.btn-check:checked + .btn-outline-primary:focus, .btn-check:active + .btn-outline-primary:focus, .btn-outline-primary:active:focus, .btn-outline-primary.active:focus, .btn-outline-primary.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.5);\n}\n.btn-outline-primary:disabled, .btn-outline-primary.disabled {\n  color: #0d6efd;\n  background-color: transparent;\n}\n\n.btn-outline-secondary {\n  color: #6c757d;\n  border-color: #6c757d;\n}\n.btn-outline-secondary:hover {\n  color: #fff;\n  background-color: #6c757d;\n  border-color: #6c757d;\n}\n.btn-check:focus + .btn-outline-secondary, .btn-outline-secondary:focus {\n  box-shadow: 0 0 0 0.25rem rgba(108, 117, 125, 0.5);\n}\n.btn-check:checked + .btn-outline-secondary, .btn-check:active + .btn-outline-secondary, .btn-outline-secondary:active, .btn-outline-secondary.active, .btn-outline-secondary.dropdown-toggle.show {\n  color: #fff;\n  background-color: #6c757d;\n  border-color: #6c757d;\n}\n.btn-check:checked + .btn-outline-secondary:focus, .btn-check:active + .btn-outline-secondary:focus, .btn-outline-secondary:active:focus, .btn-outline-secondary.active:focus, .btn-outline-secondary.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(108, 117, 125, 0.5);\n}\n.btn-outline-secondary:disabled, .btn-outline-secondary.disabled {\n  color: #6c757d;\n  background-color: transparent;\n}\n\n.btn-outline-success {\n  color: #198754;\n  border-color: #198754;\n}\n.btn-outline-success:hover {\n  color: #fff;\n  background-color: #198754;\n  border-color: #198754;\n}\n.btn-check:focus + .btn-outline-success, .btn-outline-success:focus {\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.5);\n}\n.btn-check:checked + .btn-outline-success, .btn-check:active + .btn-outline-success, .btn-outline-success:active, .btn-outline-success.active, .btn-outline-success.dropdown-toggle.show {\n  color: #fff;\n  background-color: #198754;\n  border-color: #198754;\n}\n.btn-check:checked + .btn-outline-success:focus, .btn-check:active + .btn-outline-success:focus, .btn-outline-success:active:focus, .btn-outline-success.active:focus, .btn-outline-success.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.5);\n}\n.btn-outline-success:disabled, .btn-outline-success.disabled {\n  color: #198754;\n  background-color: transparent;\n}\n\n.btn-outline-info {\n  color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n.btn-outline-info:hover {\n  color: #000;\n  background-color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n.btn-check:focus + .btn-outline-info, .btn-outline-info:focus {\n  box-shadow: 0 0 0 0.25rem rgba(13, 202, 240, 0.5);\n}\n.btn-check:checked + .btn-outline-info, .btn-check:active + .btn-outline-info, .btn-outline-info:active, .btn-outline-info.active, .btn-outline-info.dropdown-toggle.show {\n  color: #000;\n  background-color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n.btn-check:checked + .btn-outline-info:focus, .btn-check:active + .btn-outline-info:focus, .btn-outline-info:active:focus, .btn-outline-info.active:focus, .btn-outline-info.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(13, 202, 240, 0.5);\n}\n.btn-outline-info:disabled, .btn-outline-info.disabled {\n  color: #0dcaf0;\n  background-color: transparent;\n}\n\n.btn-outline-warning {\n  color: #ffc107;\n  border-color: #ffc107;\n}\n.btn-outline-warning:hover {\n  color: #000;\n  background-color: #ffc107;\n  border-color: #ffc107;\n}\n.btn-check:focus + .btn-outline-warning, .btn-outline-warning:focus {\n  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.5);\n}\n.btn-check:checked + .btn-outline-warning, .btn-check:active + .btn-outline-warning, .btn-outline-warning:active, .btn-outline-warning.active, .btn-outline-warning.dropdown-toggle.show {\n  color: #000;\n  background-color: #ffc107;\n  border-color: #ffc107;\n}\n.btn-check:checked + .btn-outline-warning:focus, .btn-check:active + .btn-outline-warning:focus, .btn-outline-warning:active:focus, .btn-outline-warning.active:focus, .btn-outline-warning.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.5);\n}\n.btn-outline-warning:disabled, .btn-outline-warning.disabled {\n  color: #ffc107;\n  background-color: transparent;\n}\n\n.btn-outline-danger {\n  color: #dc3545;\n  border-color: #dc3545;\n}\n.btn-outline-danger:hover {\n  color: #fff;\n  background-color: #dc3545;\n  border-color: #dc3545;\n}\n.btn-check:focus + .btn-outline-danger, .btn-outline-danger:focus {\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.5);\n}\n.btn-check:checked + .btn-outline-danger, .btn-check:active + .btn-outline-danger, .btn-outline-danger:active, .btn-outline-danger.active, .btn-outline-danger.dropdown-toggle.show {\n  color: #fff;\n  background-color: #dc3545;\n  border-color: #dc3545;\n}\n.btn-check:checked + .btn-outline-danger:focus, .btn-check:active + .btn-outline-danger:focus, .btn-outline-danger:active:focus, .btn-outline-danger.active:focus, .btn-outline-danger.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.5);\n}\n.btn-outline-danger:disabled, .btn-outline-danger.disabled {\n  color: #dc3545;\n  background-color: transparent;\n}\n\n.btn-outline-light {\n  color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n.btn-outline-light:hover {\n  color: #000;\n  background-color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n.btn-check:focus + .btn-outline-light, .btn-outline-light:focus {\n  box-shadow: 0 0 0 0.25rem rgba(248, 249, 250, 0.5);\n}\n.btn-check:checked + .btn-outline-light, .btn-check:active + .btn-outline-light, .btn-outline-light:active, .btn-outline-light.active, .btn-outline-light.dropdown-toggle.show {\n  color: #000;\n  background-color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n.btn-check:checked + .btn-outline-light:focus, .btn-check:active + .btn-outline-light:focus, .btn-outline-light:active:focus, .btn-outline-light.active:focus, .btn-outline-light.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(248, 249, 250, 0.5);\n}\n.btn-outline-light:disabled, .btn-outline-light.disabled {\n  color: #f8f9fa;\n  background-color: transparent;\n}\n\n.btn-outline-dark {\n  color: #212529;\n  border-color: #212529;\n}\n.btn-outline-dark:hover {\n  color: #fff;\n  background-color: #212529;\n  border-color: #212529;\n}\n.btn-check:focus + .btn-outline-dark, .btn-outline-dark:focus {\n  box-shadow: 0 0 0 0.25rem rgba(33, 37, 41, 0.5);\n}\n.btn-check:checked + .btn-outline-dark, .btn-check:active + .btn-outline-dark, .btn-outline-dark:active, .btn-outline-dark.active, .btn-outline-dark.dropdown-toggle.show {\n  color: #fff;\n  background-color: #212529;\n  border-color: #212529;\n}\n.btn-check:checked + .btn-outline-dark:focus, .btn-check:active + .btn-outline-dark:focus, .btn-outline-dark:active:focus, .btn-outline-dark.active:focus, .btn-outline-dark.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(33, 37, 41, 0.5);\n}\n.btn-outline-dark:disabled, .btn-outline-dark.disabled {\n  color: #212529;\n  background-color: transparent;\n}\n\n.btn-link {\n  font-weight: 400;\n  color: #0d6efd;\n  text-decoration: underline;\n}\n.btn-link:hover {\n  color: #0a58ca;\n}\n.btn-link:disabled, .btn-link.disabled {\n  color: #6c757d;\n}\n\n.btn-lg, .btn-group-lg > .btn {\n  padding: 0.5rem 1rem;\n  font-size: 1.25rem;\n  border-radius: 0.3rem;\n}\n\n.btn-sm, .btn-group-sm > .btn {\n  padding: 0.25rem 0.5rem;\n  font-size: 0.875rem;\n  border-radius: 0.2rem;\n}\n\n.fade {\n  transition: opacity 0.15s linear;\n}\n@media (prefers-reduced-motion: reduce) {\n  .fade {\n    transition: none;\n  }\n}\n.fade:not(.show) {\n  opacity: 0;\n}\n\n.collapse:not(.show) {\n  display: none;\n}\n\n.collapsing {\n  height: 0;\n  overflow: hidden;\n  transition: height 0.35s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .collapsing {\n    transition: none;\n  }\n}\n.collapsing.collapse-horizontal {\n  width: 0;\n  height: auto;\n  transition: width 0.35s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .collapsing.collapse-horizontal {\n    transition: none;\n  }\n}\n\n.dropup,\n.dropend,\n.dropdown,\n.dropstart {\n  position: relative;\n}\n\n.dropdown-toggle {\n  white-space: nowrap;\n}\n.dropdown-toggle::after {\n  display: inline-block;\n  margin-left: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n  border-top: 0.3em solid;\n  border-right: 0.3em solid transparent;\n  border-bottom: 0;\n  border-left: 0.3em solid transparent;\n}\n.dropdown-toggle:empty::after {\n  margin-left: 0;\n}\n\n.dropdown-menu {\n  position: absolute;\n  z-index: 1000;\n  display: none;\n  min-width: 10rem;\n  padding: 0.5rem 0;\n  margin: 0;\n  font-size: 1rem;\n  color: #212529;\n  text-align: left;\n  list-style: none;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 1px solid rgba(0, 0, 0, 0.15);\n  border-radius: 0.25rem;\n}\n.dropdown-menu[data-bs-popper] {\n  top: 100%;\n  left: 0;\n  margin-top: 0.125rem;\n}\n\n.dropdown-menu-start {\n  --bs-position: start;\n}\n.dropdown-menu-start[data-bs-popper] {\n  right: auto;\n  left: 0;\n}\n\n.dropdown-menu-end {\n  --bs-position: end;\n}\n.dropdown-menu-end[data-bs-popper] {\n  right: 0;\n  left: auto;\n}\n\n@media (min-width: 576px) {\n  .dropdown-menu-sm-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-sm-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-sm-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-sm-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n@media (min-width: 768px) {\n  .dropdown-menu-md-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-md-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-md-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-md-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n@media (min-width: 992px) {\n  .dropdown-menu-lg-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-lg-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-lg-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-lg-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n@media (min-width: 1200px) {\n  .dropdown-menu-xl-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-xl-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-xl-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-xl-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n@media (min-width: 1400px) {\n  .dropdown-menu-xxl-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-xxl-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-xxl-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-xxl-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n.dropup .dropdown-menu[data-bs-popper] {\n  top: auto;\n  bottom: 100%;\n  margin-top: 0;\n  margin-bottom: 0.125rem;\n}\n.dropup .dropdown-toggle::after {\n  display: inline-block;\n  margin-left: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n  border-top: 0;\n  border-right: 0.3em solid transparent;\n  border-bottom: 0.3em solid;\n  border-left: 0.3em solid transparent;\n}\n.dropup .dropdown-toggle:empty::after {\n  margin-left: 0;\n}\n\n.dropend .dropdown-menu[data-bs-popper] {\n  top: 0;\n  right: auto;\n  left: 100%;\n  margin-top: 0;\n  margin-left: 0.125rem;\n}\n.dropend .dropdown-toggle::after {\n  display: inline-block;\n  margin-left: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n  border-top: 0.3em solid transparent;\n  border-right: 0;\n  border-bottom: 0.3em solid transparent;\n  border-left: 0.3em solid;\n}\n.dropend .dropdown-toggle:empty::after {\n  margin-left: 0;\n}\n.dropend .dropdown-toggle::after {\n  vertical-align: 0;\n}\n\n.dropstart .dropdown-menu[data-bs-popper] {\n  top: 0;\n  right: 100%;\n  left: auto;\n  margin-top: 0;\n  margin-right: 0.125rem;\n}\n.dropstart .dropdown-toggle::after {\n  display: inline-block;\n  margin-left: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n}\n.dropstart .dropdown-toggle::after {\n  display: none;\n}\n.dropstart .dropdown-toggle::before {\n  display: inline-block;\n  margin-right: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n  border-top: 0.3em solid transparent;\n  border-right: 0.3em solid;\n  border-bottom: 0.3em solid transparent;\n}\n.dropstart .dropdown-toggle:empty::after {\n  margin-left: 0;\n}\n.dropstart .dropdown-toggle::before {\n  vertical-align: 0;\n}\n\n.dropdown-divider {\n  height: 0;\n  margin: 0.5rem 0;\n  overflow: hidden;\n  border-top: 1px solid rgba(0, 0, 0, 0.15);\n}\n\n.dropdown-item {\n  display: block;\n  width: 100%;\n  padding: 0.25rem 1rem;\n  clear: both;\n  font-weight: 400;\n  color: #212529;\n  text-align: inherit;\n  text-decoration: none;\n  white-space: nowrap;\n  background-color: transparent;\n  border: 0;\n}\n.dropdown-item:hover, .dropdown-item:focus {\n  color: #1e2125;\n  background-color: #e9ecef;\n}\n.dropdown-item.active, .dropdown-item:active {\n  color: #fff;\n  text-decoration: none;\n  background-color: #0d6efd;\n}\n.dropdown-item.disabled, .dropdown-item:disabled {\n  color: #adb5bd;\n  pointer-events: none;\n  background-color: transparent;\n}\n\n.dropdown-menu.show {\n  display: block;\n}\n\n.dropdown-header {\n  display: block;\n  padding: 0.5rem 1rem;\n  margin-bottom: 0;\n  font-size: 0.875rem;\n  color: #6c757d;\n  white-space: nowrap;\n}\n\n.dropdown-item-text {\n  display: block;\n  padding: 0.25rem 1rem;\n  color: #212529;\n}\n\n.dropdown-menu-dark {\n  color: #dee2e6;\n  background-color: #343a40;\n  border-color: rgba(0, 0, 0, 0.15);\n}\n.dropdown-menu-dark .dropdown-item {\n  color: #dee2e6;\n}\n.dropdown-menu-dark .dropdown-item:hover, .dropdown-menu-dark .dropdown-item:focus {\n  color: #fff;\n  background-color: rgba(255, 255, 255, 0.15);\n}\n.dropdown-menu-dark .dropdown-item.active, .dropdown-menu-dark .dropdown-item:active {\n  color: #fff;\n  background-color: #0d6efd;\n}\n.dropdown-menu-dark .dropdown-item.disabled, .dropdown-menu-dark .dropdown-item:disabled {\n  color: #adb5bd;\n}\n.dropdown-menu-dark .dropdown-divider {\n  border-color: rgba(0, 0, 0, 0.15);\n}\n.dropdown-menu-dark .dropdown-item-text {\n  color: #dee2e6;\n}\n.dropdown-menu-dark .dropdown-header {\n  color: #adb5bd;\n}\n\n.btn-group,\n.btn-group-vertical {\n  position: relative;\n  display: inline-flex;\n  vertical-align: middle;\n}\n.btn-group > .btn,\n.btn-group-vertical > .btn {\n  position: relative;\n  flex: 1 1 auto;\n}\n.btn-group > .btn-check:checked + .btn,\n.btn-group > .btn-check:focus + .btn,\n.btn-group > .btn:hover,\n.btn-group > .btn:focus,\n.btn-group > .btn:active,\n.btn-group > .btn.active,\n.btn-group-vertical > .btn-check:checked + .btn,\n.btn-group-vertical > .btn-check:focus + .btn,\n.btn-group-vertical > .btn:hover,\n.btn-group-vertical > .btn:focus,\n.btn-group-vertical > .btn:active,\n.btn-group-vertical > .btn.active {\n  z-index: 1;\n}\n\n.btn-toolbar {\n  display: flex;\n  flex-wrap: wrap;\n  justify-content: flex-start;\n}\n.btn-toolbar .input-group {\n  width: auto;\n}\n\n.btn-group > .btn:not(:first-child),\n.btn-group > .btn-group:not(:first-child) {\n  margin-left: -1px;\n}\n.btn-group > .btn:not(:last-child):not(.dropdown-toggle),\n.btn-group > .btn-group:not(:last-child) > .btn {\n  border-top-right-radius: 0;\n  border-bottom-right-radius: 0;\n}\n.btn-group > .btn:nth-child(n+3),\n.btn-group > :not(.btn-check) + .btn,\n.btn-group > .btn-group:not(:first-child) > .btn {\n  border-top-left-radius: 0;\n  border-bottom-left-radius: 0;\n}\n\n.dropdown-toggle-split {\n  padding-right: 0.5625rem;\n  padding-left: 0.5625rem;\n}\n.dropdown-toggle-split::after, .dropup .dropdown-toggle-split::after, .dropend .dropdown-toggle-split::after {\n  margin-left: 0;\n}\n.dropstart .dropdown-toggle-split::before {\n  margin-right: 0;\n}\n\n.btn-sm + .dropdown-toggle-split, .btn-group-sm > .btn + .dropdown-toggle-split {\n  padding-right: 0.375rem;\n  padding-left: 0.375rem;\n}\n\n.btn-lg + .dropdown-toggle-split, .btn-group-lg > .btn + .dropdown-toggle-split {\n  padding-right: 0.75rem;\n  padding-left: 0.75rem;\n}\n\n.btn-group-vertical {\n  flex-direction: column;\n  align-items: flex-start;\n  justify-content: center;\n}\n.btn-group-vertical > .btn,\n.btn-group-vertical > .btn-group {\n  width: 100%;\n}\n.btn-group-vertical > .btn:not(:first-child),\n.btn-group-vertical > .btn-group:not(:first-child) {\n  margin-top: -1px;\n}\n.btn-group-vertical > .btn:not(:last-child):not(.dropdown-toggle),\n.btn-group-vertical > .btn-group:not(:last-child) > .btn {\n  border-bottom-right-radius: 0;\n  border-bottom-left-radius: 0;\n}\n.btn-group-vertical > .btn ~ .btn,\n.btn-group-vertical > .btn-group:not(:first-child) > .btn {\n  border-top-left-radius: 0;\n  border-top-right-radius: 0;\n}\n\n.nav {\n  display: flex;\n  flex-wrap: wrap;\n  padding-left: 0;\n  margin-bottom: 0;\n  list-style: none;\n}\n\n.nav-link {\n  display: block;\n  padding: 0.5rem 1rem;\n  color: #0d6efd;\n  text-decoration: none;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .nav-link {\n    transition: none;\n  }\n}\n.nav-link:hover, .nav-link:focus {\n  color: #0a58ca;\n}\n.nav-link.disabled {\n  color: #6c757d;\n  pointer-events: none;\n  cursor: default;\n}\n\n.nav-tabs {\n  border-bottom: 1px solid #dee2e6;\n}\n.nav-tabs .nav-link {\n  margin-bottom: -1px;\n  background: none;\n  border: 1px solid transparent;\n  border-top-left-radius: 0.25rem;\n  border-top-right-radius: 0.25rem;\n}\n.nav-tabs .nav-link:hover, .nav-tabs .nav-link:focus {\n  border-color: #e9ecef #e9ecef #dee2e6;\n  isolation: isolate;\n}\n.nav-tabs .nav-link.disabled {\n  color: #6c757d;\n  background-color: transparent;\n  border-color: transparent;\n}\n.nav-tabs .nav-link.active,\n.nav-tabs .nav-item.show .nav-link {\n  color: #495057;\n  background-color: #fff;\n  border-color: #dee2e6 #dee2e6 #fff;\n}\n.nav-tabs .dropdown-menu {\n  margin-top: -1px;\n  border-top-left-radius: 0;\n  border-top-right-radius: 0;\n}\n\n.nav-pills .nav-link {\n  background: none;\n  border: 0;\n  border-radius: 0.25rem;\n}\n.nav-pills .nav-link.active,\n.nav-pills .show > .nav-link {\n  color: #fff;\n  background-color: #0d6efd;\n}\n\n.nav-fill > .nav-link,\n.nav-fill .nav-item {\n  flex: 1 1 auto;\n  text-align: center;\n}\n\n.nav-justified > .nav-link,\n.nav-justified .nav-item {\n  flex-basis: 0;\n  flex-grow: 1;\n  text-align: center;\n}\n\n.nav-fill .nav-item .nav-link,\n.nav-justified .nav-item .nav-link {\n  width: 100%;\n}\n\n.tab-content > .tab-pane {\n  display: none;\n}\n.tab-content > .active {\n  display: block;\n}\n\n.navbar {\n  position: relative;\n  display: flex;\n  flex-wrap: wrap;\n  align-items: center;\n  justify-content: space-between;\n  padding-top: 0.5rem;\n  padding-bottom: 0.5rem;\n}\n.navbar > .container,\n.navbar > .container-fluid,\n.navbar > .container-sm,\n.navbar > .container-md,\n.navbar > .container-lg,\n.navbar > .container-xl,\n.navbar > .container-xxl {\n  display: flex;\n  flex-wrap: inherit;\n  align-items: center;\n  justify-content: space-between;\n}\n.navbar-brand {\n  padding-top: 0.3125rem;\n  padding-bottom: 0.3125rem;\n  margin-right: 1rem;\n  font-size: 1.25rem;\n  text-decoration: none;\n  white-space: nowrap;\n}\n.navbar-nav {\n  display: flex;\n  flex-direction: column;\n  padding-left: 0;\n  margin-bottom: 0;\n  list-style: none;\n}\n.navbar-nav .nav-link {\n  padding-right: 0;\n  padding-left: 0;\n}\n.navbar-nav .dropdown-menu {\n  position: static;\n}\n\n.navbar-text {\n  padding-top: 0.5rem;\n  padding-bottom: 0.5rem;\n}\n\n.navbar-collapse {\n  flex-basis: 100%;\n  flex-grow: 1;\n  align-items: center;\n}\n\n.navbar-toggler {\n  padding: 0.25rem 0.75rem;\n  font-size: 1.25rem;\n  line-height: 1;\n  background-color: transparent;\n  border: 1px solid transparent;\n  border-radius: 0.25rem;\n  transition: box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .navbar-toggler {\n    transition: none;\n  }\n}\n.navbar-toggler:hover {\n  text-decoration: none;\n}\n.navbar-toggler:focus {\n  text-decoration: none;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem;\n}\n\n.navbar-toggler-icon {\n  display: inline-block;\n  width: 1.5em;\n  height: 1.5em;\n  vertical-align: middle;\n  background-repeat: no-repeat;\n  background-position: center;\n  background-size: 100%;\n}\n\n.navbar-nav-scroll {\n  max-height: var(--bs-scroll-height, 75vh);\n  overflow-y: auto;\n}\n\n@media (min-width: 576px) {\n  .navbar-expand-sm {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-sm .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-sm .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-sm .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-sm .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-sm .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-sm .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-sm .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-sm .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-sm .offcanvas-top,\n.navbar-expand-sm .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-sm .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n@media (min-width: 768px) {\n  .navbar-expand-md {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-md .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-md .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-md .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-md .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-md .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-md .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-md .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-md .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-md .offcanvas-top,\n.navbar-expand-md .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-md .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n@media (min-width: 992px) {\n  .navbar-expand-lg {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-lg .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-lg .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-lg .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-lg .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-lg .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-lg .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-lg .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-lg .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-lg .offcanvas-top,\n.navbar-expand-lg .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-lg .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n@media (min-width: 1200px) {\n  .navbar-expand-xl {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-xl .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-xl .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-xl .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-xl .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-xl .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-xl .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-xl .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-xl .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-xl .offcanvas-top,\n.navbar-expand-xl .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-xl .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n@media (min-width: 1400px) {\n  .navbar-expand-xxl {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-xxl .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-xxl .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-xxl .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-xxl .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-xxl .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-xxl .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-xxl .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-xxl .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-xxl .offcanvas-top,\n.navbar-expand-xxl .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-xxl .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n.navbar-expand {\n  flex-wrap: nowrap;\n  justify-content: flex-start;\n}\n.navbar-expand .navbar-nav {\n  flex-direction: row;\n}\n.navbar-expand .navbar-nav .dropdown-menu {\n  position: absolute;\n}\n.navbar-expand .navbar-nav .nav-link {\n  padding-right: 0.5rem;\n  padding-left: 0.5rem;\n}\n.navbar-expand .navbar-nav-scroll {\n  overflow: visible;\n}\n.navbar-expand .navbar-collapse {\n  display: flex !important;\n  flex-basis: auto;\n}\n.navbar-expand .navbar-toggler {\n  display: none;\n}\n.navbar-expand .offcanvas-header {\n  display: none;\n}\n.navbar-expand .offcanvas {\n  position: inherit;\n  bottom: 0;\n  z-index: 1000;\n  flex-grow: 1;\n  visibility: visible !important;\n  background-color: transparent;\n  border-right: 0;\n  border-left: 0;\n  transition: none;\n  transform: none;\n}\n.navbar-expand .offcanvas-top,\n.navbar-expand .offcanvas-bottom {\n  height: auto;\n  border-top: 0;\n  border-bottom: 0;\n}\n.navbar-expand .offcanvas-body {\n  display: flex;\n  flex-grow: 0;\n  padding: 0;\n  overflow-y: visible;\n}\n\n.navbar-light .navbar-brand {\n  color: rgba(0, 0, 0, 0.9);\n}\n.navbar-light .navbar-brand:hover, .navbar-light .navbar-brand:focus {\n  color: rgba(0, 0, 0, 0.9);\n}\n.navbar-light .navbar-nav .nav-link {\n  color: rgba(0, 0, 0, 0.55);\n}\n.navbar-light .navbar-nav .nav-link:hover, .navbar-light .navbar-nav .nav-link:focus {\n  color: rgba(0, 0, 0, 0.7);\n}\n.navbar-light .navbar-nav .nav-link.disabled {\n  color: rgba(0, 0, 0, 0.3);\n}\n.navbar-light .navbar-nav .show > .nav-link,\n.navbar-light .navbar-nav .nav-link.active {\n  color: rgba(0, 0, 0, 0.9);\n}\n.navbar-light .navbar-toggler {\n  color: rgba(0, 0, 0, 0.55);\n  border-color: rgba(0, 0, 0, 0.1);\n}\n.navbar-light .navbar-toggler-icon {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280, 0, 0, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e\");\n}\n.navbar-light .navbar-text {\n  color: rgba(0, 0, 0, 0.55);\n}\n.navbar-light .navbar-text a,\n.navbar-light .navbar-text a:hover,\n.navbar-light .navbar-text a:focus {\n  color: rgba(0, 0, 0, 0.9);\n}\n\n.navbar-dark .navbar-brand {\n  color: #fff;\n}\n.navbar-dark .navbar-brand:hover, .navbar-dark .navbar-brand:focus {\n  color: #fff;\n}\n.navbar-dark .navbar-nav .nav-link {\n  color: rgba(255, 255, 255, 0.55);\n}\n.navbar-dark .navbar-nav .nav-link:hover, .navbar-dark .navbar-nav .nav-link:focus {\n  color: rgba(255, 255, 255, 0.75);\n}\n.navbar-dark .navbar-nav .nav-link.disabled {\n  color: rgba(255, 255, 255, 0.25);\n}\n.navbar-dark .navbar-nav .show > .nav-link,\n.navbar-dark .navbar-nav .nav-link.active {\n  color: #fff;\n}\n.navbar-dark .navbar-toggler {\n  color: rgba(255, 255, 255, 0.55);\n  border-color: rgba(255, 255, 255, 0.1);\n}\n.navbar-dark .navbar-toggler-icon {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e\");\n}\n.navbar-dark .navbar-text {\n  color: rgba(255, 255, 255, 0.55);\n}\n.navbar-dark .navbar-text a,\n.navbar-dark .navbar-text a:hover,\n.navbar-dark .navbar-text a:focus {\n  color: #fff;\n}\n\n.card {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  min-width: 0;\n  word-wrap: break-word;\n  background-color: #fff;\n  background-clip: border-box;\n  border: 1px solid rgba(0, 0, 0, 0.125);\n  border-radius: 0.25rem;\n}\n.card > hr {\n  margin-right: 0;\n  margin-left: 0;\n}\n.card > .list-group {\n  border-top: inherit;\n  border-bottom: inherit;\n}\n.card > .list-group:first-child {\n  border-top-width: 0;\n  border-top-left-radius: calc(0.25rem - 1px);\n  border-top-right-radius: calc(0.25rem - 1px);\n}\n.card > .list-group:last-child {\n  border-bottom-width: 0;\n  border-bottom-right-radius: calc(0.25rem - 1px);\n  border-bottom-left-radius: calc(0.25rem - 1px);\n}\n.card > .card-header + .list-group,\n.card > .list-group + .card-footer {\n  border-top: 0;\n}\n\n.card-body {\n  flex: 1 1 auto;\n  padding: 1rem 1rem;\n}\n\n.card-title {\n  margin-bottom: 0.5rem;\n}\n\n.card-subtitle {\n  margin-top: -0.25rem;\n  margin-bottom: 0;\n}\n\n.card-text:last-child {\n  margin-bottom: 0;\n}\n\n.card-link + .card-link {\n  margin-left: 1rem;\n}\n\n.card-header {\n  padding: 0.5rem 1rem;\n  margin-bottom: 0;\n  background-color: rgba(0, 0, 0, 0.03);\n  border-bottom: 1px solid rgba(0, 0, 0, 0.125);\n}\n.card-header:first-child {\n  border-radius: calc(0.25rem - 1px) calc(0.25rem - 1px) 0 0;\n}\n\n.card-footer {\n  padding: 0.5rem 1rem;\n  background-color: rgba(0, 0, 0, 0.03);\n  border-top: 1px solid rgba(0, 0, 0, 0.125);\n}\n.card-footer:last-child {\n  border-radius: 0 0 calc(0.25rem - 1px) calc(0.25rem - 1px);\n}\n\n.card-header-tabs {\n  margin-right: -0.5rem;\n  margin-bottom: -0.5rem;\n  margin-left: -0.5rem;\n  border-bottom: 0;\n}\n\n.card-header-pills {\n  margin-right: -0.5rem;\n  margin-left: -0.5rem;\n}\n\n.card-img-overlay {\n  position: absolute;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  padding: 1rem;\n  border-radius: calc(0.25rem - 1px);\n}\n\n.card-img,\n.card-img-top,\n.card-img-bottom {\n  width: 100%;\n}\n\n.card-img,\n.card-img-top {\n  border-top-left-radius: calc(0.25rem - 1px);\n  border-top-right-radius: calc(0.25rem - 1px);\n}\n\n.card-img,\n.card-img-bottom {\n  border-bottom-right-radius: calc(0.25rem - 1px);\n  border-bottom-left-radius: calc(0.25rem - 1px);\n}\n\n.card-group > .card {\n  margin-bottom: 0.75rem;\n}\n@media (min-width: 576px) {\n  .card-group {\n    display: flex;\n    flex-flow: row wrap;\n  }\n  .card-group > .card {\n    flex: 1 0 0%;\n    margin-bottom: 0;\n  }\n  .card-group > .card + .card {\n    margin-left: 0;\n    border-left: 0;\n  }\n  .card-group > .card:not(:last-child) {\n    border-top-right-radius: 0;\n    border-bottom-right-radius: 0;\n  }\n  .card-group > .card:not(:last-child) .card-img-top,\n.card-group > .card:not(:last-child) .card-header {\n    border-top-right-radius: 0;\n  }\n  .card-group > .card:not(:last-child) .card-img-bottom,\n.card-group > .card:not(:last-child) .card-footer {\n    border-bottom-right-radius: 0;\n  }\n  .card-group > .card:not(:first-child) {\n    border-top-left-radius: 0;\n    border-bottom-left-radius: 0;\n  }\n  .card-group > .card:not(:first-child) .card-img-top,\n.card-group > .card:not(:first-child) .card-header {\n    border-top-left-radius: 0;\n  }\n  .card-group > .card:not(:first-child) .card-img-bottom,\n.card-group > .card:not(:first-child) .card-footer {\n    border-bottom-left-radius: 0;\n  }\n}\n\n.accordion-button {\n  position: relative;\n  display: flex;\n  align-items: center;\n  width: 100%;\n  padding: 1rem 1.25rem;\n  font-size: 1rem;\n  color: #212529;\n  text-align: left;\n  background-color: #fff;\n  border: 0;\n  border-radius: 0;\n  overflow-anchor: none;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, border-radius 0.15s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .accordion-button {\n    transition: none;\n  }\n}\n.accordion-button:not(.collapsed) {\n  color: #0c63e4;\n  background-color: #e7f1ff;\n  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.125);\n}\n.accordion-button:not(.collapsed)::after {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230c63e4'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e\");\n  transform: rotate(-180deg);\n}\n.accordion-button::after {\n  flex-shrink: 0;\n  width: 1.25rem;\n  height: 1.25rem;\n  margin-left: auto;\n  content: \"\";\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23212529'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e\");\n  background-repeat: no-repeat;\n  background-size: 1.25rem;\n  transition: transform 0.2s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .accordion-button::after {\n    transition: none;\n  }\n}\n.accordion-button:hover {\n  z-index: 2;\n}\n.accordion-button:focus {\n  z-index: 3;\n  border-color: #86b7fe;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n\n.accordion-header {\n  margin-bottom: 0;\n}\n\n.accordion-item {\n  background-color: #fff;\n  border: 1px solid rgba(0, 0, 0, 0.125);\n}\n.accordion-item:first-of-type {\n  border-top-left-radius: 0.25rem;\n  border-top-right-radius: 0.25rem;\n}\n.accordion-item:first-of-type .accordion-button {\n  border-top-left-radius: calc(0.25rem - 1px);\n  border-top-right-radius: calc(0.25rem - 1px);\n}\n.accordion-item:not(:first-of-type) {\n  border-top: 0;\n}\n.accordion-item:last-of-type {\n  border-bottom-right-radius: 0.25rem;\n  border-bottom-left-radius: 0.25rem;\n}\n.accordion-item:last-of-type .accordion-button.collapsed {\n  border-bottom-right-radius: calc(0.25rem - 1px);\n  border-bottom-left-radius: calc(0.25rem - 1px);\n}\n.accordion-item:last-of-type .accordion-collapse {\n  border-bottom-right-radius: 0.25rem;\n  border-bottom-left-radius: 0.25rem;\n}\n\n.accordion-body {\n  padding: 1rem 1.25rem;\n}\n\n.accordion-flush .accordion-collapse {\n  border-width: 0;\n}\n.accordion-flush .accordion-item {\n  border-right: 0;\n  border-left: 0;\n  border-radius: 0;\n}\n.accordion-flush .accordion-item:first-child {\n  border-top: 0;\n}\n.accordion-flush .accordion-item:last-child {\n  border-bottom: 0;\n}\n.accordion-flush .accordion-item .accordion-button {\n  border-radius: 0;\n}\n\n.breadcrumb {\n  display: flex;\n  flex-wrap: wrap;\n  padding: 0 0;\n  margin-bottom: 1rem;\n  list-style: none;\n}\n\n.breadcrumb-item + .breadcrumb-item {\n  padding-left: 0.5rem;\n}\n.breadcrumb-item + .breadcrumb-item::before {\n  float: left;\n  padding-right: 0.5rem;\n  color: #6c757d;\n  content: var(--bs-breadcrumb-divider, \"/\") /* rtl: var(--bs-breadcrumb-divider, \"/\") */;\n}\n.breadcrumb-item.active {\n  color: #6c757d;\n}\n\n.pagination {\n  display: flex;\n  padding-left: 0;\n  list-style: none;\n}\n\n.page-link {\n  position: relative;\n  display: block;\n  color: #0d6efd;\n  text-decoration: none;\n  background-color: #fff;\n  border: 1px solid #dee2e6;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .page-link {\n    transition: none;\n  }\n}\n.page-link:hover {\n  z-index: 2;\n  color: #0a58ca;\n  background-color: #e9ecef;\n  border-color: #dee2e6;\n}\n.page-link:focus {\n  z-index: 3;\n  color: #0a58ca;\n  background-color: #e9ecef;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n\n.page-item:not(:first-child) .page-link {\n  margin-left: -1px;\n}\n.page-item.active .page-link {\n  z-index: 3;\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.page-item.disabled .page-link {\n  color: #6c757d;\n  pointer-events: none;\n  background-color: #fff;\n  border-color: #dee2e6;\n}\n\n.page-link {\n  padding: 0.375rem 0.75rem;\n}\n\n.page-item:first-child .page-link {\n  border-top-left-radius: 0.25rem;\n  border-bottom-left-radius: 0.25rem;\n}\n.page-item:last-child .page-link {\n  border-top-right-radius: 0.25rem;\n  border-bottom-right-radius: 0.25rem;\n}\n\n.pagination-lg .page-link {\n  padding: 0.75rem 1.5rem;\n  font-size: 1.25rem;\n}\n.pagination-lg .page-item:first-child .page-link {\n  border-top-left-radius: 0.3rem;\n  border-bottom-left-radius: 0.3rem;\n}\n.pagination-lg .page-item:last-child .page-link {\n  border-top-right-radius: 0.3rem;\n  border-bottom-right-radius: 0.3rem;\n}\n\n.pagination-sm .page-link {\n  padding: 0.25rem 0.5rem;\n  font-size: 0.875rem;\n}\n.pagination-sm .page-item:first-child .page-link {\n  border-top-left-radius: 0.2rem;\n  border-bottom-left-radius: 0.2rem;\n}\n.pagination-sm .page-item:last-child .page-link {\n  border-top-right-radius: 0.2rem;\n  border-bottom-right-radius: 0.2rem;\n}\n\n.badge {\n  display: inline-block;\n  padding: 0.35em 0.65em;\n  font-size: 0.75em;\n  font-weight: 700;\n  line-height: 1;\n  color: #fff;\n  text-align: center;\n  white-space: nowrap;\n  vertical-align: baseline;\n  border-radius: 0.25rem;\n}\n.badge:empty {\n  display: none;\n}\n\n.btn .badge {\n  position: relative;\n  top: -1px;\n}\n\n.alert {\n  position: relative;\n  padding: 1rem 1rem;\n  margin-bottom: 1rem;\n  border: 1px solid transparent;\n  border-radius: 0.25rem;\n}\n\n.alert-heading {\n  color: inherit;\n}\n\n.alert-link {\n  font-weight: 700;\n}\n\n.alert-dismissible {\n  padding-right: 3rem;\n}\n.alert-dismissible .btn-close {\n  position: absolute;\n  top: 0;\n  right: 0;\n  z-index: 2;\n  padding: 1.25rem 1rem;\n}\n\n.alert-primary {\n  color: #084298;\n  background-color: #cfe2ff;\n  border-color: #b6d4fe;\n}\n.alert-primary .alert-link {\n  color: #06357a;\n}\n\n.alert-secondary {\n  color: #41464b;\n  background-color: #e2e3e5;\n  border-color: #d3d6d8;\n}\n.alert-secondary .alert-link {\n  color: #34383c;\n}\n\n.alert-success {\n  color: #0f5132;\n  background-color: #d1e7dd;\n  border-color: #badbcc;\n}\n.alert-success .alert-link {\n  color: #0c4128;\n}\n\n.alert-info {\n  color: #055160;\n  background-color: #cff4fc;\n  border-color: #b6effb;\n}\n.alert-info .alert-link {\n  color: #04414d;\n}\n\n.alert-warning {\n  color: #664d03;\n  background-color: #fff3cd;\n  border-color: #ffecb5;\n}\n.alert-warning .alert-link {\n  color: #523e02;\n}\n\n.alert-danger {\n  color: #842029;\n  background-color: #f8d7da;\n  border-color: #f5c2c7;\n}\n.alert-danger .alert-link {\n  color: #6a1a21;\n}\n\n.alert-light {\n  color: #636464;\n  background-color: #fefefe;\n  border-color: #fdfdfe;\n}\n.alert-light .alert-link {\n  color: #4f5050;\n}\n\n.alert-dark {\n  color: #141619;\n  background-color: #d3d3d4;\n  border-color: #bcbebf;\n}\n.alert-dark .alert-link {\n  color: #101214;\n}\n\n@-webkit-keyframes progress-bar-stripes {\n  0% {\n    background-position-x: 1rem;\n  }\n}\n\n@keyframes progress-bar-stripes {\n  0% {\n    background-position-x: 1rem;\n  }\n}\n.progress {\n  display: flex;\n  height: 1rem;\n  overflow: hidden;\n  font-size: 0.75rem;\n  background-color: #e9ecef;\n  border-radius: 0.25rem;\n}\n\n.progress-bar {\n  display: flex;\n  flex-direction: column;\n  justify-content: center;\n  overflow: hidden;\n  color: #fff;\n  text-align: center;\n  white-space: nowrap;\n  background-color: #0d6efd;\n  transition: width 0.6s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .progress-bar {\n    transition: none;\n  }\n}\n\n.progress-bar-striped {\n  background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);\n  background-size: 1rem 1rem;\n}\n\n.progress-bar-animated {\n  -webkit-animation: 1s linear infinite progress-bar-stripes;\n  animation: 1s linear infinite progress-bar-stripes;\n}\n@media (prefers-reduced-motion: reduce) {\n  .progress-bar-animated {\n    -webkit-animation: none;\n    animation: none;\n  }\n}\n\n.list-group {\n  display: flex;\n  flex-direction: column;\n  padding-left: 0;\n  margin-bottom: 0;\n  border-radius: 0.25rem;\n}\n\n.list-group-numbered {\n  list-style-type: none;\n  counter-reset: section;\n}\n.list-group-numbered > li::before {\n  content: counters(section, \".\") \". \";\n  counter-increment: section;\n}\n\n.list-group-item-action {\n  width: 100%;\n  color: #495057;\n  text-align: inherit;\n}\n.list-group-item-action:hover, .list-group-item-action:focus {\n  z-index: 1;\n  color: #495057;\n  text-decoration: none;\n  background-color: #f8f9fa;\n}\n.list-group-item-action:active {\n  color: #212529;\n  background-color: #e9ecef;\n}\n\n.list-group-item {\n  position: relative;\n  display: block;\n  padding: 0.5rem 1rem;\n  color: #212529;\n  text-decoration: none;\n  background-color: #fff;\n  border: 1px solid rgba(0, 0, 0, 0.125);\n}\n.list-group-item:first-child {\n  border-top-left-radius: inherit;\n  border-top-right-radius: inherit;\n}\n.list-group-item:last-child {\n  border-bottom-right-radius: inherit;\n  border-bottom-left-radius: inherit;\n}\n.list-group-item.disabled, .list-group-item:disabled {\n  color: #6c757d;\n  pointer-events: none;\n  background-color: #fff;\n}\n.list-group-item.active {\n  z-index: 2;\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.list-group-item + .list-group-item {\n  border-top-width: 0;\n}\n.list-group-item + .list-group-item.active {\n  margin-top: -1px;\n  border-top-width: 1px;\n}\n\n.list-group-horizontal {\n  flex-direction: row;\n}\n.list-group-horizontal > .list-group-item:first-child {\n  border-bottom-left-radius: 0.25rem;\n  border-top-right-radius: 0;\n}\n.list-group-horizontal > .list-group-item:last-child {\n  border-top-right-radius: 0.25rem;\n  border-bottom-left-radius: 0;\n}\n.list-group-horizontal > .list-group-item.active {\n  margin-top: 0;\n}\n.list-group-horizontal > .list-group-item + .list-group-item {\n  border-top-width: 1px;\n  border-left-width: 0;\n}\n.list-group-horizontal > .list-group-item + .list-group-item.active {\n  margin-left: -1px;\n  border-left-width: 1px;\n}\n\n@media (min-width: 576px) {\n  .list-group-horizontal-sm {\n    flex-direction: row;\n  }\n  .list-group-horizontal-sm > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-sm > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-sm > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-sm > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-sm > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n@media (min-width: 768px) {\n  .list-group-horizontal-md {\n    flex-direction: row;\n  }\n  .list-group-horizontal-md > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-md > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-md > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-md > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-md > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n@media (min-width: 992px) {\n  .list-group-horizontal-lg {\n    flex-direction: row;\n  }\n  .list-group-horizontal-lg > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-lg > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-lg > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-lg > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-lg > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n@media (min-width: 1200px) {\n  .list-group-horizontal-xl {\n    flex-direction: row;\n  }\n  .list-group-horizontal-xl > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n@media (min-width: 1400px) {\n  .list-group-horizontal-xxl {\n    flex-direction: row;\n  }\n  .list-group-horizontal-xxl > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-xxl > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-xxl > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-xxl > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-xxl > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n.list-group-flush {\n  border-radius: 0;\n}\n.list-group-flush > .list-group-item {\n  border-width: 0 0 1px;\n}\n.list-group-flush > .list-group-item:last-child {\n  border-bottom-width: 0;\n}\n\n.list-group-item-primary {\n  color: #084298;\n  background-color: #cfe2ff;\n}\n.list-group-item-primary.list-group-item-action:hover, .list-group-item-primary.list-group-item-action:focus {\n  color: #084298;\n  background-color: #bacbe6;\n}\n.list-group-item-primary.list-group-item-action.active {\n  color: #fff;\n  background-color: #084298;\n  border-color: #084298;\n}\n\n.list-group-item-secondary {\n  color: #41464b;\n  background-color: #e2e3e5;\n}\n.list-group-item-secondary.list-group-item-action:hover, .list-group-item-secondary.list-group-item-action:focus {\n  color: #41464b;\n  background-color: #cbccce;\n}\n.list-group-item-secondary.list-group-item-action.active {\n  color: #fff;\n  background-color: #41464b;\n  border-color: #41464b;\n}\n\n.list-group-item-success {\n  color: #0f5132;\n  background-color: #d1e7dd;\n}\n.list-group-item-success.list-group-item-action:hover, .list-group-item-success.list-group-item-action:focus {\n  color: #0f5132;\n  background-color: #bcd0c7;\n}\n.list-group-item-success.list-group-item-action.active {\n  color: #fff;\n  background-color: #0f5132;\n  border-color: #0f5132;\n}\n\n.list-group-item-info {\n  color: #055160;\n  background-color: #cff4fc;\n}\n.list-group-item-info.list-group-item-action:hover, .list-group-item-info.list-group-item-action:focus {\n  color: #055160;\n  background-color: #badce3;\n}\n.list-group-item-info.list-group-item-action.active {\n  color: #fff;\n  background-color: #055160;\n  border-color: #055160;\n}\n\n.list-group-item-warning {\n  color: #664d03;\n  background-color: #fff3cd;\n}\n.list-group-item-warning.list-group-item-action:hover, .list-group-item-warning.list-group-item-action:focus {\n  color: #664d03;\n  background-color: #e6dbb9;\n}\n.list-group-item-warning.list-group-item-action.active {\n  color: #fff;\n  background-color: #664d03;\n  border-color: #664d03;\n}\n\n.list-group-item-danger {\n  color: #842029;\n  background-color: #f8d7da;\n}\n.list-group-item-danger.list-group-item-action:hover, .list-group-item-danger.list-group-item-action:focus {\n  color: #842029;\n  background-color: #dfc2c4;\n}\n.list-group-item-danger.list-group-item-action.active {\n  color: #fff;\n  background-color: #842029;\n  border-color: #842029;\n}\n\n.list-group-item-light {\n  color: #636464;\n  background-color: #fefefe;\n}\n.list-group-item-light.list-group-item-action:hover, .list-group-item-light.list-group-item-action:focus {\n  color: #636464;\n  background-color: #e5e5e5;\n}\n.list-group-item-light.list-group-item-action.active {\n  color: #fff;\n  background-color: #636464;\n  border-color: #636464;\n}\n\n.list-group-item-dark {\n  color: #141619;\n  background-color: #d3d3d4;\n}\n.list-group-item-dark.list-group-item-action:hover, .list-group-item-dark.list-group-item-action:focus {\n  color: #141619;\n  background-color: #bebebf;\n}\n.list-group-item-dark.list-group-item-action.active {\n  color: #fff;\n  background-color: #141619;\n  border-color: #141619;\n}\n\n.btn-close {\n  box-sizing: content-box;\n  width: 1em;\n  height: 1em;\n  padding: 0.25em 0.25em;\n  color: #000;\n  background: transparent url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e\") center/1em auto no-repeat;\n  border: 0;\n  border-radius: 0.25rem;\n  opacity: 0.5;\n}\n.btn-close:hover {\n  color: #000;\n  text-decoration: none;\n  opacity: 0.75;\n}\n.btn-close:focus {\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n  opacity: 1;\n}\n.btn-close:disabled, .btn-close.disabled {\n  pointer-events: none;\n  -webkit-user-select: none;\n  -moz-user-select: none;\n  user-select: none;\n  opacity: 0.25;\n}\n\n.btn-close-white {\n  filter: invert(1) grayscale(100%) brightness(200%);\n}\n\n.toast {\n  width: 350px;\n  max-width: 100%;\n  font-size: 0.875rem;\n  pointer-events: auto;\n  background-color: rgba(255, 255, 255, 0.85);\n  background-clip: padding-box;\n  border: 1px solid rgba(0, 0, 0, 0.1);\n  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);\n  border-radius: 0.25rem;\n}\n.toast.showing {\n  opacity: 0;\n}\n.toast:not(.show) {\n  display: none;\n}\n\n.toast-container {\n  width: -webkit-max-content;\n  width: -moz-max-content;\n  width: max-content;\n  max-width: 100%;\n  pointer-events: none;\n}\n.toast-container > :not(:last-child) {\n  margin-bottom: 0.75rem;\n}\n\n.toast-header {\n  display: flex;\n  align-items: center;\n  padding: 0.5rem 0.75rem;\n  color: #6c757d;\n  background-color: rgba(255, 255, 255, 0.85);\n  background-clip: padding-box;\n  border-bottom: 1px solid rgba(0, 0, 0, 0.05);\n  border-top-left-radius: calc(0.25rem - 1px);\n  border-top-right-radius: calc(0.25rem - 1px);\n}\n.toast-header .btn-close {\n  margin-right: -0.375rem;\n  margin-left: 0.75rem;\n}\n\n.toast-body {\n  padding: 0.75rem;\n  word-wrap: break-word;\n}\n\n.modal {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: 1055;\n  display: none;\n  width: 100%;\n  height: 100%;\n  overflow-x: hidden;\n  overflow-y: auto;\n  outline: 0;\n}\n\n.modal-dialog {\n  position: relative;\n  width: auto;\n  margin: 0.5rem;\n  pointer-events: none;\n}\n.modal.fade .modal-dialog {\n  transition: transform 0.3s ease-out;\n  transform: translate(0, -50px);\n}\n@media (prefers-reduced-motion: reduce) {\n  .modal.fade .modal-dialog {\n    transition: none;\n  }\n}\n.modal.show .modal-dialog {\n  transform: none;\n}\n.modal.modal-static .modal-dialog {\n  transform: scale(1.02);\n}\n\n.modal-dialog-scrollable {\n  height: calc(100% - 1rem);\n}\n.modal-dialog-scrollable .modal-content {\n  max-height: 100%;\n  overflow: hidden;\n}\n.modal-dialog-scrollable .modal-body {\n  overflow-y: auto;\n}\n\n.modal-dialog-centered {\n  display: flex;\n  align-items: center;\n  min-height: calc(100% - 1rem);\n}\n\n.modal-content {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  width: 100%;\n  pointer-events: auto;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 1px solid rgba(0, 0, 0, 0.2);\n  border-radius: 0.3rem;\n  outline: 0;\n}\n\n.modal-backdrop {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: 1050;\n  width: 100vw;\n  height: 100vh;\n  background-color: #000;\n}\n.modal-backdrop.fade {\n  opacity: 0;\n}\n.modal-backdrop.show {\n  opacity: 0.5;\n}\n\n.modal-header {\n  display: flex;\n  flex-shrink: 0;\n  align-items: center;\n  justify-content: space-between;\n  padding: 1rem 1rem;\n  border-bottom: 1px solid #dee2e6;\n  border-top-left-radius: calc(0.3rem - 1px);\n  border-top-right-radius: calc(0.3rem - 1px);\n}\n.modal-header .btn-close {\n  padding: 0.5rem 0.5rem;\n  margin: -0.5rem -0.5rem -0.5rem auto;\n}\n\n.modal-title {\n  margin-bottom: 0;\n  line-height: 1.5;\n}\n\n.modal-body {\n  position: relative;\n  flex: 1 1 auto;\n  padding: 1rem;\n}\n\n.modal-footer {\n  display: flex;\n  flex-wrap: wrap;\n  flex-shrink: 0;\n  align-items: center;\n  justify-content: flex-end;\n  padding: 0.75rem;\n  border-top: 1px solid #dee2e6;\n  border-bottom-right-radius: calc(0.3rem - 1px);\n  border-bottom-left-radius: calc(0.3rem - 1px);\n}\n.modal-footer > * {\n  margin: 0.25rem;\n}\n\n@media (min-width: 576px) {\n  .modal-dialog {\n    max-width: 500px;\n    margin: 1.75rem auto;\n  }\n\n  .modal-dialog-scrollable {\n    height: calc(100% - 3.5rem);\n  }\n\n  .modal-dialog-centered {\n    min-height: calc(100% - 3.5rem);\n  }\n\n  .modal-sm {\n    max-width: 300px;\n  }\n}\n@media (min-width: 992px) {\n  .modal-lg,\n.modal-xl {\n    max-width: 800px;\n  }\n}\n@media (min-width: 1200px) {\n  .modal-xl {\n    max-width: 1140px;\n  }\n}\n.modal-fullscreen {\n  width: 100vw;\n  max-width: none;\n  height: 100%;\n  margin: 0;\n}\n.modal-fullscreen .modal-content {\n  height: 100%;\n  border: 0;\n  border-radius: 0;\n}\n.modal-fullscreen .modal-header {\n  border-radius: 0;\n}\n.modal-fullscreen .modal-body {\n  overflow-y: auto;\n}\n.modal-fullscreen .modal-footer {\n  border-radius: 0;\n}\n\n@media (max-width: 575.98px) {\n  .modal-fullscreen-sm-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-sm-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-sm-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-sm-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-sm-down .modal-footer {\n    border-radius: 0;\n  }\n}\n@media (max-width: 767.98px) {\n  .modal-fullscreen-md-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-md-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-md-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-md-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-md-down .modal-footer {\n    border-radius: 0;\n  }\n}\n@media (max-width: 991.98px) {\n  .modal-fullscreen-lg-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-lg-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-lg-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-lg-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-lg-down .modal-footer {\n    border-radius: 0;\n  }\n}\n@media (max-width: 1199.98px) {\n  .modal-fullscreen-xl-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-xl-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-xl-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-xl-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-xl-down .modal-footer {\n    border-radius: 0;\n  }\n}\n@media (max-width: 1399.98px) {\n  .modal-fullscreen-xxl-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-xxl-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-xxl-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-xxl-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-xxl-down .modal-footer {\n    border-radius: 0;\n  }\n}\n.tooltip {\n  position: absolute;\n  z-index: 1080;\n  display: block;\n  margin: 0;\n  font-family: var(--bs-font-sans-serif);\n  font-style: normal;\n  font-weight: 400;\n  line-height: 1.5;\n  text-align: left;\n  text-align: start;\n  text-decoration: none;\n  text-shadow: none;\n  text-transform: none;\n  letter-spacing: normal;\n  word-break: normal;\n  word-spacing: normal;\n  white-space: normal;\n  line-break: auto;\n  font-size: 0.875rem;\n  word-wrap: break-word;\n  opacity: 0;\n}\n.tooltip.show {\n  opacity: 0.9;\n}\n.tooltip .tooltip-arrow {\n  position: absolute;\n  display: block;\n  width: 0.8rem;\n  height: 0.4rem;\n}\n.tooltip .tooltip-arrow::before {\n  position: absolute;\n  content: \"\";\n  border-color: transparent;\n  border-style: solid;\n}\n\n.bs-tooltip-top, .bs-tooltip-auto[data-popper-placement^=top] {\n  padding: 0.4rem 0;\n}\n.bs-tooltip-top .tooltip-arrow, .bs-tooltip-auto[data-popper-placement^=top] .tooltip-arrow {\n  bottom: 0;\n}\n.bs-tooltip-top .tooltip-arrow::before, .bs-tooltip-auto[data-popper-placement^=top] .tooltip-arrow::before {\n  top: -1px;\n  border-width: 0.4rem 0.4rem 0;\n  border-top-color: #000;\n}\n\n.bs-tooltip-end, .bs-tooltip-auto[data-popper-placement^=right] {\n  padding: 0 0.4rem;\n}\n.bs-tooltip-end .tooltip-arrow, .bs-tooltip-auto[data-popper-placement^=right] .tooltip-arrow {\n  left: 0;\n  width: 0.4rem;\n  height: 0.8rem;\n}\n.bs-tooltip-end .tooltip-arrow::before, .bs-tooltip-auto[data-popper-placement^=right] .tooltip-arrow::before {\n  right: -1px;\n  border-width: 0.4rem 0.4rem 0.4rem 0;\n  border-right-color: #000;\n}\n\n.bs-tooltip-bottom, .bs-tooltip-auto[data-popper-placement^=bottom] {\n  padding: 0.4rem 0;\n}\n.bs-tooltip-bottom .tooltip-arrow, .bs-tooltip-auto[data-popper-placement^=bottom] .tooltip-arrow {\n  top: 0;\n}\n.bs-tooltip-bottom .tooltip-arrow::before, .bs-tooltip-auto[data-popper-placement^=bottom] .tooltip-arrow::before {\n  bottom: -1px;\n  border-width: 0 0.4rem 0.4rem;\n  border-bottom-color: #000;\n}\n\n.bs-tooltip-start, .bs-tooltip-auto[data-popper-placement^=left] {\n  padding: 0 0.4rem;\n}\n.bs-tooltip-start .tooltip-arrow, .bs-tooltip-auto[data-popper-placement^=left] .tooltip-arrow {\n  right: 0;\n  width: 0.4rem;\n  height: 0.8rem;\n}\n.bs-tooltip-start .tooltip-arrow::before, .bs-tooltip-auto[data-popper-placement^=left] .tooltip-arrow::before {\n  left: -1px;\n  border-width: 0.4rem 0 0.4rem 0.4rem;\n  border-left-color: #000;\n}\n\n.tooltip-inner {\n  max-width: 200px;\n  padding: 0.25rem 0.5rem;\n  color: #fff;\n  text-align: center;\n  background-color: #000;\n  border-radius: 0.25rem;\n}\n\n.popover {\n  position: absolute;\n  top: 0;\n  left: 0 /* rtl:ignore */;\n  z-index: 1070;\n  display: block;\n  max-width: 276px;\n  font-family: var(--bs-font-sans-serif);\n  font-style: normal;\n  font-weight: 400;\n  line-height: 1.5;\n  text-align: left;\n  text-align: start;\n  text-decoration: none;\n  text-shadow: none;\n  text-transform: none;\n  letter-spacing: normal;\n  word-break: normal;\n  word-spacing: normal;\n  white-space: normal;\n  line-break: auto;\n  font-size: 0.875rem;\n  word-wrap: break-word;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 1px solid rgba(0, 0, 0, 0.2);\n  border-radius: 0.3rem;\n}\n.popover .popover-arrow {\n  position: absolute;\n  display: block;\n  width: 1rem;\n  height: 0.5rem;\n}\n.popover .popover-arrow::before, .popover .popover-arrow::after {\n  position: absolute;\n  display: block;\n  content: \"\";\n  border-color: transparent;\n  border-style: solid;\n}\n\n.bs-popover-top > .popover-arrow, .bs-popover-auto[data-popper-placement^=top] > .popover-arrow {\n  bottom: calc(-0.5rem - 1px);\n}\n.bs-popover-top > .popover-arrow::before, .bs-popover-auto[data-popper-placement^=top] > .popover-arrow::before {\n  bottom: 0;\n  border-width: 0.5rem 0.5rem 0;\n  border-top-color: rgba(0, 0, 0, 0.25);\n}\n.bs-popover-top > .popover-arrow::after, .bs-popover-auto[data-popper-placement^=top] > .popover-arrow::after {\n  bottom: 1px;\n  border-width: 0.5rem 0.5rem 0;\n  border-top-color: #fff;\n}\n\n.bs-popover-end > .popover-arrow, .bs-popover-auto[data-popper-placement^=right] > .popover-arrow {\n  left: calc(-0.5rem - 1px);\n  width: 0.5rem;\n  height: 1rem;\n}\n.bs-popover-end > .popover-arrow::before, .bs-popover-auto[data-popper-placement^=right] > .popover-arrow::before {\n  left: 0;\n  border-width: 0.5rem 0.5rem 0.5rem 0;\n  border-right-color: rgba(0, 0, 0, 0.25);\n}\n.bs-popover-end > .popover-arrow::after, .bs-popover-auto[data-popper-placement^=right] > .popover-arrow::after {\n  left: 1px;\n  border-width: 0.5rem 0.5rem 0.5rem 0;\n  border-right-color: #fff;\n}\n\n.bs-popover-bottom > .popover-arrow, .bs-popover-auto[data-popper-placement^=bottom] > .popover-arrow {\n  top: calc(-0.5rem - 1px);\n}\n.bs-popover-bottom > .popover-arrow::before, .bs-popover-auto[data-popper-placement^=bottom] > .popover-arrow::before {\n  top: 0;\n  border-width: 0 0.5rem 0.5rem 0.5rem;\n  border-bottom-color: rgba(0, 0, 0, 0.25);\n}\n.bs-popover-bottom > .popover-arrow::after, .bs-popover-auto[data-popper-placement^=bottom] > .popover-arrow::after {\n  top: 1px;\n  border-width: 0 0.5rem 0.5rem 0.5rem;\n  border-bottom-color: #fff;\n}\n.bs-popover-bottom .popover-header::before, .bs-popover-auto[data-popper-placement^=bottom] .popover-header::before {\n  position: absolute;\n  top: 0;\n  left: 50%;\n  display: block;\n  width: 1rem;\n  margin-left: -0.5rem;\n  content: \"\";\n  border-bottom: 1px solid #f0f0f0;\n}\n\n.bs-popover-start > .popover-arrow, .bs-popover-auto[data-popper-placement^=left] > .popover-arrow {\n  right: calc(-0.5rem - 1px);\n  width: 0.5rem;\n  height: 1rem;\n}\n.bs-popover-start > .popover-arrow::before, .bs-popover-auto[data-popper-placement^=left] > .popover-arrow::before {\n  right: 0;\n  border-width: 0.5rem 0 0.5rem 0.5rem;\n  border-left-color: rgba(0, 0, 0, 0.25);\n}\n.bs-popover-start > .popover-arrow::after, .bs-popover-auto[data-popper-placement^=left] > .popover-arrow::after {\n  right: 1px;\n  border-width: 0.5rem 0 0.5rem 0.5rem;\n  border-left-color: #fff;\n}\n\n.popover-header {\n  padding: 0.5rem 1rem;\n  margin-bottom: 0;\n  font-size: 1rem;\n  background-color: #f0f0f0;\n  border-bottom: 1px solid rgba(0, 0, 0, 0.2);\n  border-top-left-radius: calc(0.3rem - 1px);\n  border-top-right-radius: calc(0.3rem - 1px);\n}\n.popover-header:empty {\n  display: none;\n}\n\n.popover-body {\n  padding: 1rem 1rem;\n  color: #212529;\n}\n\n.carousel {\n  position: relative;\n}\n\n.carousel.pointer-event {\n  touch-action: pan-y;\n}\n\n.carousel-inner {\n  position: relative;\n  width: 100%;\n  overflow: hidden;\n}\n.carousel-inner::after {\n  display: block;\n  clear: both;\n  content: \"\";\n}\n\n.carousel-item {\n  position: relative;\n  display: none;\n  float: left;\n  width: 100%;\n  margin-right: -100%;\n  -webkit-backface-visibility: hidden;\n  backface-visibility: hidden;\n  transition: transform 0.6s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .carousel-item {\n    transition: none;\n  }\n}\n\n.carousel-item.active,\n.carousel-item-next,\n.carousel-item-prev {\n  display: block;\n}\n\n/* rtl:begin:ignore */\n.carousel-item-next:not(.carousel-item-start),\n.active.carousel-item-end {\n  transform: translateX(100%);\n}\n\n.carousel-item-prev:not(.carousel-item-end),\n.active.carousel-item-start {\n  transform: translateX(-100%);\n}\n\n/* rtl:end:ignore */\n.carousel-fade .carousel-item {\n  opacity: 0;\n  transition-property: opacity;\n  transform: none;\n}\n.carousel-fade .carousel-item.active,\n.carousel-fade .carousel-item-next.carousel-item-start,\n.carousel-fade .carousel-item-prev.carousel-item-end {\n  z-index: 1;\n  opacity: 1;\n}\n.carousel-fade .active.carousel-item-start,\n.carousel-fade .active.carousel-item-end {\n  z-index: 0;\n  opacity: 0;\n  transition: opacity 0s 0.6s;\n}\n@media (prefers-reduced-motion: reduce) {\n  .carousel-fade .active.carousel-item-start,\n.carousel-fade .active.carousel-item-end {\n    transition: none;\n  }\n}\n\n.carousel-control-prev,\n.carousel-control-next {\n  position: absolute;\n  top: 0;\n  bottom: 0;\n  z-index: 1;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  width: 15%;\n  padding: 0;\n  color: #fff;\n  text-align: center;\n  background: none;\n  border: 0;\n  opacity: 0.5;\n  transition: opacity 0.15s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .carousel-control-prev,\n.carousel-control-next {\n    transition: none;\n  }\n}\n.carousel-control-prev:hover, .carousel-control-prev:focus,\n.carousel-control-next:hover,\n.carousel-control-next:focus {\n  color: #fff;\n  text-decoration: none;\n  outline: 0;\n  opacity: 0.9;\n}\n\n.carousel-control-prev {\n  left: 0;\n}\n\n.carousel-control-next {\n  right: 0;\n}\n\n.carousel-control-prev-icon,\n.carousel-control-next-icon {\n  display: inline-block;\n  width: 2rem;\n  height: 2rem;\n  background-repeat: no-repeat;\n  background-position: 50%;\n  background-size: 100% 100%;\n}\n\n/* rtl:options: {\n  \"autoRename\": true,\n  \"stringMap\":[ {\n    \"name\"    : \"prev-next\",\n    \"search\"  : \"prev\",\n    \"replace\" : \"next\"\n  } ]\n} */\n.carousel-control-prev-icon {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23fff'%3e%3cpath d='M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e\");\n}\n\n.carousel-control-next-icon {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23fff'%3e%3cpath d='M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e\");\n}\n\n.carousel-indicators {\n  position: absolute;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: 2;\n  display: flex;\n  justify-content: center;\n  padding: 0;\n  margin-right: 15%;\n  margin-bottom: 1rem;\n  margin-left: 15%;\n  list-style: none;\n}\n.carousel-indicators [data-bs-target] {\n  box-sizing: content-box;\n  flex: 0 1 auto;\n  width: 30px;\n  height: 3px;\n  padding: 0;\n  margin-right: 3px;\n  margin-left: 3px;\n  text-indent: -999px;\n  cursor: pointer;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 0;\n  border-top: 10px solid transparent;\n  border-bottom: 10px solid transparent;\n  opacity: 0.5;\n  transition: opacity 0.6s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .carousel-indicators [data-bs-target] {\n    transition: none;\n  }\n}\n.carousel-indicators .active {\n  opacity: 1;\n}\n\n.carousel-caption {\n  position: absolute;\n  right: 15%;\n  bottom: 1.25rem;\n  left: 15%;\n  padding-top: 1.25rem;\n  padding-bottom: 1.25rem;\n  color: #fff;\n  text-align: center;\n}\n\n.carousel-dark .carousel-control-prev-icon,\n.carousel-dark .carousel-control-next-icon {\n  filter: invert(1) grayscale(100);\n}\n.carousel-dark .carousel-indicators [data-bs-target] {\n  background-color: #000;\n}\n.carousel-dark .carousel-caption {\n  color: #000;\n}\n\n@-webkit-keyframes spinner-border {\n  to {\n    transform: rotate(360deg) /* rtl:ignore */;\n  }\n}\n\n@keyframes spinner-border {\n  to {\n    transform: rotate(360deg) /* rtl:ignore */;\n  }\n}\n.spinner-border {\n  display: inline-block;\n  width: 2rem;\n  height: 2rem;\n  vertical-align: -0.125em;\n  border: 0.25em solid currentColor;\n  border-right-color: transparent;\n  border-radius: 50%;\n  -webkit-animation: 0.75s linear infinite spinner-border;\n  animation: 0.75s linear infinite spinner-border;\n}\n\n.spinner-border-sm {\n  width: 1rem;\n  height: 1rem;\n  border-width: 0.2em;\n}\n\n@-webkit-keyframes spinner-grow {\n  0% {\n    transform: scale(0);\n  }\n  50% {\n    opacity: 1;\n    transform: none;\n  }\n}\n\n@keyframes spinner-grow {\n  0% {\n    transform: scale(0);\n  }\n  50% {\n    opacity: 1;\n    transform: none;\n  }\n}\n.spinner-grow {\n  display: inline-block;\n  width: 2rem;\n  height: 2rem;\n  vertical-align: -0.125em;\n  background-color: currentColor;\n  border-radius: 50%;\n  opacity: 0;\n  -webkit-animation: 0.75s linear infinite spinner-grow;\n  animation: 0.75s linear infinite spinner-grow;\n}\n\n.spinner-grow-sm {\n  width: 1rem;\n  height: 1rem;\n}\n\n@media (prefers-reduced-motion: reduce) {\n  .spinner-border,\n.spinner-grow {\n    -webkit-animation-duration: 1.5s;\n    animation-duration: 1.5s;\n  }\n}\n.offcanvas {\n  position: fixed;\n  bottom: 0;\n  z-index: 1045;\n  display: flex;\n  flex-direction: column;\n  max-width: 100%;\n  visibility: hidden;\n  background-color: #fff;\n  background-clip: padding-box;\n  outline: 0;\n  transition: transform 0.3s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .offcanvas {\n    transition: none;\n  }\n}\n\n.offcanvas-backdrop {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: 1040;\n  width: 100vw;\n  height: 100vh;\n  background-color: #000;\n}\n.offcanvas-backdrop.fade {\n  opacity: 0;\n}\n.offcanvas-backdrop.show {\n  opacity: 0.5;\n}\n\n.offcanvas-header {\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  padding: 1rem 1rem;\n}\n.offcanvas-header .btn-close {\n  padding: 0.5rem 0.5rem;\n  margin-top: -0.5rem;\n  margin-right: -0.5rem;\n  margin-bottom: -0.5rem;\n}\n\n.offcanvas-title {\n  margin-bottom: 0;\n  line-height: 1.5;\n}\n\n.offcanvas-body {\n  flex-grow: 1;\n  padding: 1rem 1rem;\n  overflow-y: auto;\n}\n\n.offcanvas-start {\n  top: 0;\n  left: 0;\n  width: 400px;\n  border-right: 1px solid rgba(0, 0, 0, 0.2);\n  transform: translateX(-100%);\n}\n\n.offcanvas-end {\n  top: 0;\n  right: 0;\n  width: 400px;\n  border-left: 1px solid rgba(0, 0, 0, 0.2);\n  transform: translateX(100%);\n}\n\n.offcanvas-top {\n  top: 0;\n  right: 0;\n  left: 0;\n  height: 30vh;\n  max-height: 100%;\n  border-bottom: 1px solid rgba(0, 0, 0, 0.2);\n  transform: translateY(-100%);\n}\n\n.offcanvas-bottom {\n  right: 0;\n  left: 0;\n  height: 30vh;\n  max-height: 100%;\n  border-top: 1px solid rgba(0, 0, 0, 0.2);\n  transform: translateY(100%);\n}\n\n.offcanvas.show {\n  transform: none;\n}\n\n.placeholder {\n  display: inline-block;\n  min-height: 1em;\n  vertical-align: middle;\n  cursor: wait;\n  background-color: currentColor;\n  opacity: 0.5;\n}\n.placeholder.btn::before {\n  display: inline-block;\n  content: \"\";\n}\n\n.placeholder-xs {\n  min-height: 0.6em;\n}\n\n.placeholder-sm {\n  min-height: 0.8em;\n}\n\n.placeholder-lg {\n  min-height: 1.2em;\n}\n\n.placeholder-glow .placeholder {\n  -webkit-animation: placeholder-glow 2s ease-in-out infinite;\n  animation: placeholder-glow 2s ease-in-out infinite;\n}\n\n@-webkit-keyframes placeholder-glow {\n  50% {\n    opacity: 0.2;\n  }\n}\n\n@keyframes placeholder-glow {\n  50% {\n    opacity: 0.2;\n  }\n}\n.placeholder-wave {\n  -webkit-mask-image: linear-gradient(130deg, #000 55%, rgba(0, 0, 0, 0.8) 75%, #000 95%);\n  mask-image: linear-gradient(130deg, #000 55%, rgba(0, 0, 0, 0.8) 75%, #000 95%);\n  -webkit-mask-size: 200% 100%;\n  mask-size: 200% 100%;\n  -webkit-animation: placeholder-wave 2s linear infinite;\n  animation: placeholder-wave 2s linear infinite;\n}\n\n@-webkit-keyframes placeholder-wave {\n  100% {\n    -webkit-mask-position: -200% 0%;\n    mask-position: -200% 0%;\n  }\n}\n\n@keyframes placeholder-wave {\n  100% {\n    -webkit-mask-position: -200% 0%;\n    mask-position: -200% 0%;\n  }\n}\n.clearfix::after {\n  display: block;\n  clear: both;\n  content: \"\";\n}\n\n.link-primary {\n  color: #0d6efd;\n}\n.link-primary:hover, .link-primary:focus {\n  color: #0a58ca;\n}\n\n.link-secondary {\n  color: #6c757d;\n}\n.link-secondary:hover, .link-secondary:focus {\n  color: #565e64;\n}\n\n.link-success {\n  color: #198754;\n}\n.link-success:hover, .link-success:focus {\n  color: #146c43;\n}\n\n.link-info {\n  color: #0dcaf0;\n}\n.link-info:hover, .link-info:focus {\n  color: #3dd5f3;\n}\n\n.link-warning {\n  color: #ffc107;\n}\n.link-warning:hover, .link-warning:focus {\n  color: #ffcd39;\n}\n\n.link-danger {\n  color: #dc3545;\n}\n.link-danger:hover, .link-danger:focus {\n  color: #b02a37;\n}\n\n.link-light {\n  color: #f8f9fa;\n}\n.link-light:hover, .link-light:focus {\n  color: #f9fafb;\n}\n\n.link-dark {\n  color: #212529;\n}\n.link-dark:hover, .link-dark:focus {\n  color: #1a1e21;\n}\n\n.ratio {\n  position: relative;\n  width: 100%;\n}\n.ratio::before {\n  display: block;\n  padding-top: var(--bs-aspect-ratio);\n  content: \"\";\n}\n.ratio > * {\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n}\n\n.ratio-1x1 {\n  --bs-aspect-ratio: 100%;\n}\n\n.ratio-4x3 {\n  --bs-aspect-ratio: calc(3 / 4 * 100%);\n}\n\n.ratio-16x9 {\n  --bs-aspect-ratio: calc(9 / 16 * 100%);\n}\n\n.ratio-21x9 {\n  --bs-aspect-ratio: calc(9 / 21 * 100%);\n}\n\n.fixed-top {\n  position: fixed;\n  top: 0;\n  right: 0;\n  left: 0;\n  z-index: 1030;\n}\n\n.fixed-bottom {\n  position: fixed;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: 1030;\n}\n\n.sticky-top {\n  position: -webkit-sticky;\n  position: sticky;\n  top: 0;\n  z-index: 1020;\n}\n\n@media (min-width: 576px) {\n  .sticky-sm-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n@media (min-width: 768px) {\n  .sticky-md-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n@media (min-width: 992px) {\n  .sticky-lg-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n@media (min-width: 1200px) {\n  .sticky-xl-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n@media (min-width: 1400px) {\n  .sticky-xxl-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n.hstack {\n  display: flex;\n  flex-direction: row;\n  align-items: center;\n  align-self: stretch;\n}\n\n.vstack {\n  display: flex;\n  flex: 1 1 auto;\n  flex-direction: column;\n  align-self: stretch;\n}\n\n.visually-hidden,\n.visually-hidden-focusable:not(:focus):not(:focus-within) {\n  position: absolute !important;\n  width: 1px !important;\n  height: 1px !important;\n  padding: 0 !important;\n  margin: -1px !important;\n  overflow: hidden !important;\n  clip: rect(0, 0, 0, 0) !important;\n  white-space: nowrap !important;\n  border: 0 !important;\n}\n\n.stretched-link::after {\n  position: absolute;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: 1;\n  content: \"\";\n}\n\n.text-truncate {\n  overflow: hidden;\n  text-overflow: ellipsis;\n  white-space: nowrap;\n}\n\n.vr {\n  display: inline-block;\n  align-self: stretch;\n  width: 1px;\n  min-height: 1em;\n  background-color: currentColor;\n  opacity: 0.25;\n}\n\n.align-baseline {\n  vertical-align: baseline !important;\n}\n\n.align-top {\n  vertical-align: top !important;\n}\n\n.align-middle {\n  vertical-align: middle !important;\n}\n\n.align-bottom {\n  vertical-align: bottom !important;\n}\n\n.align-text-bottom {\n  vertical-align: text-bottom !important;\n}\n\n.align-text-top {\n  vertical-align: text-top !important;\n}\n\n.float-start {\n  float: left !important;\n}\n\n.float-end {\n  float: right !important;\n}\n\n.float-none {\n  float: none !important;\n}\n\n.opacity-0 {\n  opacity: 0 !important;\n}\n\n.opacity-25 {\n  opacity: 0.25 !important;\n}\n\n.opacity-50 {\n  opacity: 0.5 !important;\n}\n\n.opacity-75 {\n  opacity: 0.75 !important;\n}\n\n.opacity-100 {\n  opacity: 1 !important;\n}\n\n.overflow-auto {\n  overflow: auto !important;\n}\n\n.overflow-hidden {\n  overflow: hidden !important;\n}\n\n.overflow-visible {\n  overflow: visible !important;\n}\n\n.overflow-scroll {\n  overflow: scroll !important;\n}\n\n.d-inline {\n  display: inline !important;\n}\n\n.d-inline-block {\n  display: inline-block !important;\n}\n\n.d-block {\n  display: block !important;\n}\n\n.d-grid {\n  display: grid !important;\n}\n\n.d-table {\n  display: table !important;\n}\n\n.d-table-row {\n  display: table-row !important;\n}\n\n.d-table-cell {\n  display: table-cell !important;\n}\n\n.d-flex {\n  display: flex !important;\n}\n\n.d-inline-flex {\n  display: inline-flex !important;\n}\n\n.d-none {\n  display: none !important;\n}\n\n.shadow {\n  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;\n}\n\n.shadow-sm {\n  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;\n}\n\n.shadow-lg {\n  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important;\n}\n\n.shadow-none {\n  box-shadow: none !important;\n}\n\n.position-static {\n  position: static !important;\n}\n\n.position-relative {\n  position: relative !important;\n}\n\n.position-absolute {\n  position: absolute !important;\n}\n\n.position-fixed {\n  position: fixed !important;\n}\n\n.position-sticky {\n  position: -webkit-sticky !important;\n  position: sticky !important;\n}\n\n.top-0 {\n  top: 0 !important;\n}\n\n.top-50 {\n  top: 50% !important;\n}\n\n.top-100 {\n  top: 100% !important;\n}\n\n.bottom-0 {\n  bottom: 0 !important;\n}\n\n.bottom-50 {\n  bottom: 50% !important;\n}\n\n.bottom-100 {\n  bottom: 100% !important;\n}\n\n.start-0 {\n  left: 0 !important;\n}\n\n.start-50 {\n  left: 50% !important;\n}\n\n.start-100 {\n  left: 100% !important;\n}\n\n.end-0 {\n  right: 0 !important;\n}\n\n.end-50 {\n  right: 50% !important;\n}\n\n.end-100 {\n  right: 100% !important;\n}\n\n.translate-middle {\n  transform: translate(-50%, -50%) !important;\n}\n\n.translate-middle-x {\n  transform: translateX(-50%) !important;\n}\n\n.translate-middle-y {\n  transform: translateY(-50%) !important;\n}\n\n.border {\n  border: 1px solid #dee2e6 !important;\n}\n\n.border-0 {\n  border: 0 !important;\n}\n\n.border-top {\n  border-top: 1px solid #dee2e6 !important;\n}\n\n.border-top-0 {\n  border-top: 0 !important;\n}\n\n.border-end {\n  border-right: 1px solid #dee2e6 !important;\n}\n\n.border-end-0 {\n  border-right: 0 !important;\n}\n\n.border-bottom {\n  border-bottom: 1px solid #dee2e6 !important;\n}\n\n.border-bottom-0 {\n  border-bottom: 0 !important;\n}\n\n.border-start {\n  border-left: 1px solid #dee2e6 !important;\n}\n\n.border-start-0 {\n  border-left: 0 !important;\n}\n\n.border-primary {\n  border-color: #0d6efd !important;\n}\n\n.border-secondary {\n  border-color: #6c757d !important;\n}\n\n.border-success {\n  border-color: #198754 !important;\n}\n\n.border-info {\n  border-color: #0dcaf0 !important;\n}\n\n.border-warning {\n  border-color: #ffc107 !important;\n}\n\n.border-danger {\n  border-color: #dc3545 !important;\n}\n\n.border-light {\n  border-color: #f8f9fa !important;\n}\n\n.border-dark {\n  border-color: #212529 !important;\n}\n\n.border-white {\n  border-color: #fff !important;\n}\n\n.border-1 {\n  border-width: 1px !important;\n}\n\n.border-2 {\n  border-width: 2px !important;\n}\n\n.border-3 {\n  border-width: 3px !important;\n}\n\n.border-4 {\n  border-width: 4px !important;\n}\n\n.border-5 {\n  border-width: 5px !important;\n}\n\n.w-25 {\n  width: 25% !important;\n}\n\n.w-50 {\n  width: 50% !important;\n}\n\n.w-75 {\n  width: 75% !important;\n}\n\n.w-100 {\n  width: 100% !important;\n}\n\n.w-auto {\n  width: auto !important;\n}\n\n.mw-100 {\n  max-width: 100% !important;\n}\n\n.vw-100 {\n  width: 100vw !important;\n}\n\n.min-vw-100 {\n  min-width: 100vw !important;\n}\n\n.h-25 {\n  height: 25% !important;\n}\n\n.h-50 {\n  height: 50% !important;\n}\n\n.h-75 {\n  height: 75% !important;\n}\n\n.h-100 {\n  height: 100% !important;\n}\n\n.h-auto {\n  height: auto !important;\n}\n\n.mh-100 {\n  max-height: 100% !important;\n}\n\n.vh-100 {\n  height: 100vh !important;\n}\n\n.min-vh-100 {\n  min-height: 100vh !important;\n}\n\n.flex-fill {\n  flex: 1 1 auto !important;\n}\n\n.flex-row {\n  flex-direction: row !important;\n}\n\n.flex-column {\n  flex-direction: column !important;\n}\n\n.flex-row-reverse {\n  flex-direction: row-reverse !important;\n}\n\n.flex-column-reverse {\n  flex-direction: column-reverse !important;\n}\n\n.flex-grow-0 {\n  flex-grow: 0 !important;\n}\n\n.flex-grow-1 {\n  flex-grow: 1 !important;\n}\n\n.flex-shrink-0 {\n  flex-shrink: 0 !important;\n}\n\n.flex-shrink-1 {\n  flex-shrink: 1 !important;\n}\n\n.flex-wrap {\n  flex-wrap: wrap !important;\n}\n\n.flex-nowrap {\n  flex-wrap: nowrap !important;\n}\n\n.flex-wrap-reverse {\n  flex-wrap: wrap-reverse !important;\n}\n\n.gap-0 {\n  gap: 0 !important;\n}\n\n.gap-1 {\n  gap: 0.25rem !important;\n}\n\n.gap-2 {\n  gap: 0.5rem !important;\n}\n\n.gap-3 {\n  gap: 1rem !important;\n}\n\n.gap-4 {\n  gap: 1.5rem !important;\n}\n\n.gap-5 {\n  gap: 3rem !important;\n}\n\n.justify-content-start {\n  justify-content: flex-start !important;\n}\n\n.justify-content-end {\n  justify-content: flex-end !important;\n}\n\n.justify-content-center {\n  justify-content: center !important;\n}\n\n.justify-content-between {\n  justify-content: space-between !important;\n}\n\n.justify-content-around {\n  justify-content: space-around !important;\n}\n\n.justify-content-evenly {\n  justify-content: space-evenly !important;\n}\n\n.align-items-start {\n  align-items: flex-start !important;\n}\n\n.align-items-end {\n  align-items: flex-end !important;\n}\n\n.align-items-center {\n  align-items: center !important;\n}\n\n.align-items-baseline {\n  align-items: baseline !important;\n}\n\n.align-items-stretch {\n  align-items: stretch !important;\n}\n\n.align-content-start {\n  align-content: flex-start !important;\n}\n\n.align-content-end {\n  align-content: flex-end !important;\n}\n\n.align-content-center {\n  align-content: center !important;\n}\n\n.align-content-between {\n  align-content: space-between !important;\n}\n\n.align-content-around {\n  align-content: space-around !important;\n}\n\n.align-content-stretch {\n  align-content: stretch !important;\n}\n\n.align-self-auto {\n  align-self: auto !important;\n}\n\n.align-self-start {\n  align-self: flex-start !important;\n}\n\n.align-self-end {\n  align-self: flex-end !important;\n}\n\n.align-self-center {\n  align-self: center !important;\n}\n\n.align-self-baseline {\n  align-self: baseline !important;\n}\n\n.align-self-stretch {\n  align-self: stretch !important;\n}\n\n.order-first {\n  order: -1 !important;\n}\n\n.order-0 {\n  order: 0 !important;\n}\n\n.order-1 {\n  order: 1 !important;\n}\n\n.order-2 {\n  order: 2 !important;\n}\n\n.order-3 {\n  order: 3 !important;\n}\n\n.order-4 {\n  order: 4 !important;\n}\n\n.order-5 {\n  order: 5 !important;\n}\n\n.order-last {\n  order: 6 !important;\n}\n\n.m-0 {\n  margin: 0 !important;\n}\n\n.m-1 {\n  margin: 0.25rem !important;\n}\n\n.m-2 {\n  margin: 0.5rem !important;\n}\n\n.m-3 {\n  margin: 1rem !important;\n}\n\n.m-4 {\n  margin: 1.5rem !important;\n}\n\n.m-5 {\n  margin: 3rem !important;\n}\n\n.m-auto {\n  margin: auto !important;\n}\n\n.mx-0 {\n  margin-right: 0 !important;\n  margin-left: 0 !important;\n}\n\n.mx-1 {\n  margin-right: 0.25rem !important;\n  margin-left: 0.25rem !important;\n}\n\n.mx-2 {\n  margin-right: 0.5rem !important;\n  margin-left: 0.5rem !important;\n}\n\n.mx-3 {\n  margin-right: 1rem !important;\n  margin-left: 1rem !important;\n}\n\n.mx-4 {\n  margin-right: 1.5rem !important;\n  margin-left: 1.5rem !important;\n}\n\n.mx-5 {\n  margin-right: 3rem !important;\n  margin-left: 3rem !important;\n}\n\n.mx-auto {\n  margin-right: auto !important;\n  margin-left: auto !important;\n}\n\n.my-0 {\n  margin-top: 0 !important;\n  margin-bottom: 0 !important;\n}\n\n.my-1 {\n  margin-top: 0.25rem !important;\n  margin-bottom: 0.25rem !important;\n}\n\n.my-2 {\n  margin-top: 0.5rem !important;\n  margin-bottom: 0.5rem !important;\n}\n\n.my-3 {\n  margin-top: 1rem !important;\n  margin-bottom: 1rem !important;\n}\n\n.my-4 {\n  margin-top: 1.5rem !important;\n  margin-bottom: 1.5rem !important;\n}\n\n.my-5 {\n  margin-top: 3rem !important;\n  margin-bottom: 3rem !important;\n}\n\n.my-auto {\n  margin-top: auto !important;\n  margin-bottom: auto !important;\n}\n\n.mt-0 {\n  margin-top: 0 !important;\n}\n\n.mt-1 {\n  margin-top: 0.25rem !important;\n}\n\n.mt-2 {\n  margin-top: 0.5rem !important;\n}\n\n.mt-3 {\n  margin-top: 1rem !important;\n}\n\n.mt-4 {\n  margin-top: 1.5rem !important;\n}\n\n.mt-5 {\n  margin-top: 3rem !important;\n}\n\n.mt-auto {\n  margin-top: auto !important;\n}\n\n.me-0 {\n  margin-right: 0 !important;\n}\n\n.me-1 {\n  margin-right: 0.25rem !important;\n}\n\n.me-2 {\n  margin-right: 0.5rem !important;\n}\n\n.me-3 {\n  margin-right: 1rem !important;\n}\n\n.me-4 {\n  margin-right: 1.5rem !important;\n}\n\n.me-5 {\n  margin-right: 3rem !important;\n}\n\n.me-auto {\n  margin-right: auto !important;\n}\n\n.mb-0 {\n  margin-bottom: 0 !important;\n}\n\n.mb-1 {\n  margin-bottom: 0.25rem !important;\n}\n\n.mb-2 {\n  margin-bottom: 0.5rem !important;\n}\n\n.mb-3 {\n  margin-bottom: 1rem !important;\n}\n\n.mb-4 {\n  margin-bottom: 1.5rem !important;\n}\n\n.mb-5 {\n  margin-bottom: 3rem !important;\n}\n\n.mb-auto {\n  margin-bottom: auto !important;\n}\n\n.ms-0 {\n  margin-left: 0 !important;\n}\n\n.ms-1 {\n  margin-left: 0.25rem !important;\n}\n\n.ms-2 {\n  margin-left: 0.5rem !important;\n}\n\n.ms-3 {\n  margin-left: 1rem !important;\n}\n\n.ms-4 {\n  margin-left: 1.5rem !important;\n}\n\n.ms-5 {\n  margin-left: 3rem !important;\n}\n\n.ms-auto {\n  margin-left: auto !important;\n}\n\n.p-0 {\n  padding: 0 !important;\n}\n\n.p-1 {\n  padding: 0.25rem !important;\n}\n\n.p-2 {\n  padding: 0.5rem !important;\n}\n\n.p-3 {\n  padding: 1rem !important;\n}\n\n.p-4 {\n  padding: 1.5rem !important;\n}\n\n.p-5 {\n  padding: 3rem !important;\n}\n\n.px-0 {\n  padding-right: 0 !important;\n  padding-left: 0 !important;\n}\n\n.px-1 {\n  padding-right: 0.25rem !important;\n  padding-left: 0.25rem !important;\n}\n\n.px-2 {\n  padding-right: 0.5rem !important;\n  padding-left: 0.5rem !important;\n}\n\n.px-3 {\n  padding-right: 1rem !important;\n  padding-left: 1rem !important;\n}\n\n.px-4 {\n  padding-right: 1.5rem !important;\n  padding-left: 1.5rem !important;\n}\n\n.px-5 {\n  padding-right: 3rem !important;\n  padding-left: 3rem !important;\n}\n\n.py-0 {\n  padding-top: 0 !important;\n  padding-bottom: 0 !important;\n}\n\n.py-1 {\n  padding-top: 0.25rem !important;\n  padding-bottom: 0.25rem !important;\n}\n\n.py-2 {\n  padding-top: 0.5rem !important;\n  padding-bottom: 0.5rem !important;\n}\n\n.py-3 {\n  padding-top: 1rem !important;\n  padding-bottom: 1rem !important;\n}\n\n.py-4 {\n  padding-top: 1.5rem !important;\n  padding-bottom: 1.5rem !important;\n}\n\n.py-5 {\n  padding-top: 3rem !important;\n  padding-bottom: 3rem !important;\n}\n\n.pt-0 {\n  padding-top: 0 !important;\n}\n\n.pt-1 {\n  padding-top: 0.25rem !important;\n}\n\n.pt-2 {\n  padding-top: 0.5rem !important;\n}\n\n.pt-3 {\n  padding-top: 1rem !important;\n}\n\n.pt-4 {\n  padding-top: 1.5rem !important;\n}\n\n.pt-5 {\n  padding-top: 3rem !important;\n}\n\n.pe-0 {\n  padding-right: 0 !important;\n}\n\n.pe-1 {\n  padding-right: 0.25rem !important;\n}\n\n.pe-2 {\n  padding-right: 0.5rem !important;\n}\n\n.pe-3 {\n  padding-right: 1rem !important;\n}\n\n.pe-4 {\n  padding-right: 1.5rem !important;\n}\n\n.pe-5 {\n  padding-right: 3rem !important;\n}\n\n.pb-0 {\n  padding-bottom: 0 !important;\n}\n\n.pb-1 {\n  padding-bottom: 0.25rem !important;\n}\n\n.pb-2 {\n  padding-bottom: 0.5rem !important;\n}\n\n.pb-3 {\n  padding-bottom: 1rem !important;\n}\n\n.pb-4 {\n  padding-bottom: 1.5rem !important;\n}\n\n.pb-5 {\n  padding-bottom: 3rem !important;\n}\n\n.ps-0 {\n  padding-left: 0 !important;\n}\n\n.ps-1 {\n  padding-left: 0.25rem !important;\n}\n\n.ps-2 {\n  padding-left: 0.5rem !important;\n}\n\n.ps-3 {\n  padding-left: 1rem !important;\n}\n\n.ps-4 {\n  padding-left: 1.5rem !important;\n}\n\n.ps-5 {\n  padding-left: 3rem !important;\n}\n\n.font-monospace {\n  font-family: var(--bs-font-monospace) !important;\n}\n\n.fs-1 {\n  font-size: calc(1.375rem + 1.5vw) !important;\n}\n\n.fs-2 {\n  font-size: calc(1.325rem + 0.9vw) !important;\n}\n\n.fs-3 {\n  font-size: calc(1.3rem + 0.6vw) !important;\n}\n\n.fs-4 {\n  font-size: calc(1.275rem + 0.3vw) !important;\n}\n\n.fs-5 {\n  font-size: 1.25rem !important;\n}\n\n.fs-6 {\n  font-size: 1rem !important;\n}\n\n.fst-italic {\n  font-style: italic !important;\n}\n\n.fst-normal {\n  font-style: normal !important;\n}\n\n.fw-light {\n  font-weight: 300 !important;\n}\n\n.fw-lighter {\n  font-weight: lighter !important;\n}\n\n.fw-normal {\n  font-weight: 400 !important;\n}\n\n.fw-bold {\n  font-weight: 700 !important;\n}\n\n.fw-bolder {\n  font-weight: bolder !important;\n}\n\n.lh-1 {\n  line-height: 1 !important;\n}\n\n.lh-sm {\n  line-height: 1.25 !important;\n}\n\n.lh-base {\n  line-height: 1.5 !important;\n}\n\n.lh-lg {\n  line-height: 2 !important;\n}\n\n.text-start {\n  text-align: left !important;\n}\n\n.text-end {\n  text-align: right !important;\n}\n\n.text-center {\n  text-align: center !important;\n}\n\n.text-decoration-none {\n  text-decoration: none !important;\n}\n\n.text-decoration-underline {\n  text-decoration: underline !important;\n}\n\n.text-decoration-line-through {\n  text-decoration: line-through !important;\n}\n\n.text-lowercase {\n  text-transform: lowercase !important;\n}\n\n.text-uppercase {\n  text-transform: uppercase !important;\n}\n\n.text-capitalize {\n  text-transform: capitalize !important;\n}\n\n.text-wrap {\n  white-space: normal !important;\n}\n\n.text-nowrap {\n  white-space: nowrap !important;\n}\n\n/* rtl:begin:remove */\n.text-break {\n  word-wrap: break-word !important;\n  word-break: break-word !important;\n}\n\n/* rtl:end:remove */\n.text-primary {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-primary-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-secondary {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-secondary-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-success {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-success-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-info {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-info-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-warning {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-warning-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-danger {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-danger-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-light {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-light-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-dark {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-dark-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-black {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-black-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-white {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-white-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-body {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-body-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-muted {\n  --bs-text-opacity: 1;\n  color: #6c757d !important;\n}\n\n.text-black-50 {\n  --bs-text-opacity: 1;\n  color: rgba(0, 0, 0, 0.5) !important;\n}\n\n.text-white-50 {\n  --bs-text-opacity: 1;\n  color: rgba(255, 255, 255, 0.5) !important;\n}\n\n.text-reset {\n  --bs-text-opacity: 1;\n  color: inherit !important;\n}\n\n.text-opacity-25 {\n  --bs-text-opacity: 0.25;\n}\n\n.text-opacity-50 {\n  --bs-text-opacity: 0.5;\n}\n\n.text-opacity-75 {\n  --bs-text-opacity: 0.75;\n}\n\n.text-opacity-100 {\n  --bs-text-opacity: 1;\n}\n\n.bg-primary {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-primary-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-secondary {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-secondary-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-success {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-success-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-info {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-info-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-warning {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-warning-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-danger {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-danger-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-light {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-light-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-dark {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-dark-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-black {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-black-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-white {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-white-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-body {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-body-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-transparent {\n  --bs-bg-opacity: 1;\n  background-color: transparent !important;\n}\n\n.bg-opacity-10 {\n  --bs-bg-opacity: 0.1;\n}\n\n.bg-opacity-25 {\n  --bs-bg-opacity: 0.25;\n}\n\n.bg-opacity-50 {\n  --bs-bg-opacity: 0.5;\n}\n\n.bg-opacity-75 {\n  --bs-bg-opacity: 0.75;\n}\n\n.bg-opacity-100 {\n  --bs-bg-opacity: 1;\n}\n\n.bg-gradient {\n  background-image: var(--bs-gradient) !important;\n}\n\n.user-select-all {\n  -webkit-user-select: all !important;\n  -moz-user-select: all !important;\n  user-select: all !important;\n}\n\n.user-select-auto {\n  -webkit-user-select: auto !important;\n  -moz-user-select: auto !important;\n  user-select: auto !important;\n}\n\n.user-select-none {\n  -webkit-user-select: none !important;\n  -moz-user-select: none !important;\n  user-select: none !important;\n}\n\n.pe-none {\n  pointer-events: none !important;\n}\n\n.pe-auto {\n  pointer-events: auto !important;\n}\n\n.rounded {\n  border-radius: 0.25rem !important;\n}\n\n.rounded-0 {\n  border-radius: 0 !important;\n}\n\n.rounded-1 {\n  border-radius: 0.2rem !important;\n}\n\n.rounded-2 {\n  border-radius: 0.25rem !important;\n}\n\n.rounded-3 {\n  border-radius: 0.3rem !important;\n}\n\n.rounded-circle {\n  border-radius: 50% !important;\n}\n\n.rounded-pill {\n  border-radius: 50rem !important;\n}\n\n.rounded-top {\n  border-top-left-radius: 0.25rem !important;\n  border-top-right-radius: 0.25rem !important;\n}\n\n.rounded-end {\n  border-top-right-radius: 0.25rem !important;\n  border-bottom-right-radius: 0.25rem !important;\n}\n\n.rounded-bottom {\n  border-bottom-right-radius: 0.25rem !important;\n  border-bottom-left-radius: 0.25rem !important;\n}\n\n.rounded-start {\n  border-bottom-left-radius: 0.25rem !important;\n  border-top-left-radius: 0.25rem !important;\n}\n\n.visible {\n  visibility: visible !important;\n}\n\n.invisible {\n  visibility: hidden !important;\n}\n\n@media (min-width: 576px) {\n  .float-sm-start {\n    float: left !important;\n  }\n\n  .float-sm-end {\n    float: right !important;\n  }\n\n  .float-sm-none {\n    float: none !important;\n  }\n\n  .d-sm-inline {\n    display: inline !important;\n  }\n\n  .d-sm-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-sm-block {\n    display: block !important;\n  }\n\n  .d-sm-grid {\n    display: grid !important;\n  }\n\n  .d-sm-table {\n    display: table !important;\n  }\n\n  .d-sm-table-row {\n    display: table-row !important;\n  }\n\n  .d-sm-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-sm-flex {\n    display: flex !important;\n  }\n\n  .d-sm-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-sm-none {\n    display: none !important;\n  }\n\n  .flex-sm-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-sm-row {\n    flex-direction: row !important;\n  }\n\n  .flex-sm-column {\n    flex-direction: column !important;\n  }\n\n  .flex-sm-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-sm-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-sm-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-sm-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-sm-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-sm-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-sm-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-sm-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-sm-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-sm-0 {\n    gap: 0 !important;\n  }\n\n  .gap-sm-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-sm-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-sm-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-sm-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-sm-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-sm-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-sm-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-sm-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-sm-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-sm-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-sm-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-sm-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-sm-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-sm-center {\n    align-items: center !important;\n  }\n\n  .align-items-sm-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-sm-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-sm-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-sm-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-sm-center {\n    align-content: center !important;\n  }\n\n  .align-content-sm-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-sm-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-sm-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-sm-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-sm-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-sm-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-sm-center {\n    align-self: center !important;\n  }\n\n  .align-self-sm-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-sm-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-sm-first {\n    order: -1 !important;\n  }\n\n  .order-sm-0 {\n    order: 0 !important;\n  }\n\n  .order-sm-1 {\n    order: 1 !important;\n  }\n\n  .order-sm-2 {\n    order: 2 !important;\n  }\n\n  .order-sm-3 {\n    order: 3 !important;\n  }\n\n  .order-sm-4 {\n    order: 4 !important;\n  }\n\n  .order-sm-5 {\n    order: 5 !important;\n  }\n\n  .order-sm-last {\n    order: 6 !important;\n  }\n\n  .m-sm-0 {\n    margin: 0 !important;\n  }\n\n  .m-sm-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-sm-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-sm-3 {\n    margin: 1rem !important;\n  }\n\n  .m-sm-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-sm-5 {\n    margin: 3rem !important;\n  }\n\n  .m-sm-auto {\n    margin: auto !important;\n  }\n\n  .mx-sm-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-sm-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-sm-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-sm-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-sm-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-sm-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-sm-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-sm-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-sm-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-sm-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-sm-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-sm-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-sm-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-sm-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-sm-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-sm-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-sm-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-sm-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-sm-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-sm-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-sm-auto {\n    margin-top: auto !important;\n  }\n\n  .me-sm-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-sm-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-sm-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-sm-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-sm-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-sm-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-sm-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-sm-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-sm-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-sm-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-sm-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-sm-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-sm-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-sm-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-sm-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-sm-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-sm-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-sm-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-sm-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-sm-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-sm-auto {\n    margin-left: auto !important;\n  }\n\n  .p-sm-0 {\n    padding: 0 !important;\n  }\n\n  .p-sm-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-sm-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-sm-3 {\n    padding: 1rem !important;\n  }\n\n  .p-sm-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-sm-5 {\n    padding: 3rem !important;\n  }\n\n  .px-sm-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-sm-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-sm-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-sm-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-sm-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-sm-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-sm-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-sm-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-sm-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-sm-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-sm-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-sm-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-sm-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-sm-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-sm-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-sm-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-sm-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-sm-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-sm-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-sm-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-sm-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-sm-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-sm-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-sm-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-sm-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-sm-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-sm-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-sm-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-sm-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-sm-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-sm-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-sm-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-sm-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-sm-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-sm-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-sm-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-sm-start {\n    text-align: left !important;\n  }\n\n  .text-sm-end {\n    text-align: right !important;\n  }\n\n  .text-sm-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 768px) {\n  .float-md-start {\n    float: left !important;\n  }\n\n  .float-md-end {\n    float: right !important;\n  }\n\n  .float-md-none {\n    float: none !important;\n  }\n\n  .d-md-inline {\n    display: inline !important;\n  }\n\n  .d-md-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-md-block {\n    display: block !important;\n  }\n\n  .d-md-grid {\n    display: grid !important;\n  }\n\n  .d-md-table {\n    display: table !important;\n  }\n\n  .d-md-table-row {\n    display: table-row !important;\n  }\n\n  .d-md-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-md-flex {\n    display: flex !important;\n  }\n\n  .d-md-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-md-none {\n    display: none !important;\n  }\n\n  .flex-md-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-md-row {\n    flex-direction: row !important;\n  }\n\n  .flex-md-column {\n    flex-direction: column !important;\n  }\n\n  .flex-md-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-md-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-md-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-md-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-md-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-md-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-md-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-md-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-md-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-md-0 {\n    gap: 0 !important;\n  }\n\n  .gap-md-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-md-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-md-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-md-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-md-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-md-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-md-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-md-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-md-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-md-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-md-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-md-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-md-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-md-center {\n    align-items: center !important;\n  }\n\n  .align-items-md-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-md-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-md-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-md-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-md-center {\n    align-content: center !important;\n  }\n\n  .align-content-md-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-md-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-md-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-md-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-md-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-md-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-md-center {\n    align-self: center !important;\n  }\n\n  .align-self-md-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-md-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-md-first {\n    order: -1 !important;\n  }\n\n  .order-md-0 {\n    order: 0 !important;\n  }\n\n  .order-md-1 {\n    order: 1 !important;\n  }\n\n  .order-md-2 {\n    order: 2 !important;\n  }\n\n  .order-md-3 {\n    order: 3 !important;\n  }\n\n  .order-md-4 {\n    order: 4 !important;\n  }\n\n  .order-md-5 {\n    order: 5 !important;\n  }\n\n  .order-md-last {\n    order: 6 !important;\n  }\n\n  .m-md-0 {\n    margin: 0 !important;\n  }\n\n  .m-md-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-md-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-md-3 {\n    margin: 1rem !important;\n  }\n\n  .m-md-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-md-5 {\n    margin: 3rem !important;\n  }\n\n  .m-md-auto {\n    margin: auto !important;\n  }\n\n  .mx-md-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-md-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-md-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-md-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-md-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-md-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-md-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-md-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-md-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-md-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-md-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-md-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-md-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-md-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-md-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-md-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-md-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-md-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-md-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-md-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-md-auto {\n    margin-top: auto !important;\n  }\n\n  .me-md-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-md-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-md-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-md-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-md-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-md-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-md-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-md-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-md-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-md-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-md-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-md-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-md-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-md-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-md-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-md-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-md-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-md-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-md-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-md-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-md-auto {\n    margin-left: auto !important;\n  }\n\n  .p-md-0 {\n    padding: 0 !important;\n  }\n\n  .p-md-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-md-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-md-3 {\n    padding: 1rem !important;\n  }\n\n  .p-md-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-md-5 {\n    padding: 3rem !important;\n  }\n\n  .px-md-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-md-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-md-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-md-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-md-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-md-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-md-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-md-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-md-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-md-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-md-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-md-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-md-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-md-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-md-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-md-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-md-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-md-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-md-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-md-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-md-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-md-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-md-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-md-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-md-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-md-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-md-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-md-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-md-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-md-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-md-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-md-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-md-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-md-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-md-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-md-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-md-start {\n    text-align: left !important;\n  }\n\n  .text-md-end {\n    text-align: right !important;\n  }\n\n  .text-md-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 992px) {\n  .float-lg-start {\n    float: left !important;\n  }\n\n  .float-lg-end {\n    float: right !important;\n  }\n\n  .float-lg-none {\n    float: none !important;\n  }\n\n  .d-lg-inline {\n    display: inline !important;\n  }\n\n  .d-lg-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-lg-block {\n    display: block !important;\n  }\n\n  .d-lg-grid {\n    display: grid !important;\n  }\n\n  .d-lg-table {\n    display: table !important;\n  }\n\n  .d-lg-table-row {\n    display: table-row !important;\n  }\n\n  .d-lg-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-lg-flex {\n    display: flex !important;\n  }\n\n  .d-lg-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-lg-none {\n    display: none !important;\n  }\n\n  .flex-lg-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-lg-row {\n    flex-direction: row !important;\n  }\n\n  .flex-lg-column {\n    flex-direction: column !important;\n  }\n\n  .flex-lg-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-lg-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-lg-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-lg-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-lg-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-lg-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-lg-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-lg-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-lg-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-lg-0 {\n    gap: 0 !important;\n  }\n\n  .gap-lg-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-lg-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-lg-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-lg-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-lg-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-lg-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-lg-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-lg-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-lg-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-lg-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-lg-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-lg-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-lg-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-lg-center {\n    align-items: center !important;\n  }\n\n  .align-items-lg-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-lg-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-lg-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-lg-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-lg-center {\n    align-content: center !important;\n  }\n\n  .align-content-lg-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-lg-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-lg-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-lg-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-lg-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-lg-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-lg-center {\n    align-self: center !important;\n  }\n\n  .align-self-lg-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-lg-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-lg-first {\n    order: -1 !important;\n  }\n\n  .order-lg-0 {\n    order: 0 !important;\n  }\n\n  .order-lg-1 {\n    order: 1 !important;\n  }\n\n  .order-lg-2 {\n    order: 2 !important;\n  }\n\n  .order-lg-3 {\n    order: 3 !important;\n  }\n\n  .order-lg-4 {\n    order: 4 !important;\n  }\n\n  .order-lg-5 {\n    order: 5 !important;\n  }\n\n  .order-lg-last {\n    order: 6 !important;\n  }\n\n  .m-lg-0 {\n    margin: 0 !important;\n  }\n\n  .m-lg-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-lg-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-lg-3 {\n    margin: 1rem !important;\n  }\n\n  .m-lg-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-lg-5 {\n    margin: 3rem !important;\n  }\n\n  .m-lg-auto {\n    margin: auto !important;\n  }\n\n  .mx-lg-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-lg-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-lg-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-lg-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-lg-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-lg-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-lg-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-lg-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-lg-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-lg-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-lg-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-lg-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-lg-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-lg-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-lg-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-lg-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-lg-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-lg-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-lg-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-lg-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-lg-auto {\n    margin-top: auto !important;\n  }\n\n  .me-lg-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-lg-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-lg-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-lg-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-lg-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-lg-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-lg-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-lg-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-lg-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-lg-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-lg-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-lg-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-lg-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-lg-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-lg-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-lg-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-lg-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-lg-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-lg-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-lg-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-lg-auto {\n    margin-left: auto !important;\n  }\n\n  .p-lg-0 {\n    padding: 0 !important;\n  }\n\n  .p-lg-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-lg-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-lg-3 {\n    padding: 1rem !important;\n  }\n\n  .p-lg-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-lg-5 {\n    padding: 3rem !important;\n  }\n\n  .px-lg-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-lg-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-lg-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-lg-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-lg-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-lg-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-lg-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-lg-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-lg-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-lg-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-lg-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-lg-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-lg-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-lg-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-lg-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-lg-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-lg-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-lg-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-lg-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-lg-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-lg-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-lg-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-lg-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-lg-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-lg-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-lg-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-lg-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-lg-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-lg-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-lg-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-lg-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-lg-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-lg-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-lg-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-lg-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-lg-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-lg-start {\n    text-align: left !important;\n  }\n\n  .text-lg-end {\n    text-align: right !important;\n  }\n\n  .text-lg-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 1200px) {\n  .float-xl-start {\n    float: left !important;\n  }\n\n  .float-xl-end {\n    float: right !important;\n  }\n\n  .float-xl-none {\n    float: none !important;\n  }\n\n  .d-xl-inline {\n    display: inline !important;\n  }\n\n  .d-xl-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-xl-block {\n    display: block !important;\n  }\n\n  .d-xl-grid {\n    display: grid !important;\n  }\n\n  .d-xl-table {\n    display: table !important;\n  }\n\n  .d-xl-table-row {\n    display: table-row !important;\n  }\n\n  .d-xl-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-xl-flex {\n    display: flex !important;\n  }\n\n  .d-xl-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-xl-none {\n    display: none !important;\n  }\n\n  .flex-xl-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-xl-row {\n    flex-direction: row !important;\n  }\n\n  .flex-xl-column {\n    flex-direction: column !important;\n  }\n\n  .flex-xl-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-xl-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-xl-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-xl-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-xl-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-xl-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-xl-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-xl-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-xl-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-xl-0 {\n    gap: 0 !important;\n  }\n\n  .gap-xl-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-xl-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-xl-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-xl-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-xl-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-xl-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-xl-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-xl-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-xl-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-xl-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-xl-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-xl-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-xl-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-xl-center {\n    align-items: center !important;\n  }\n\n  .align-items-xl-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-xl-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-xl-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-xl-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-xl-center {\n    align-content: center !important;\n  }\n\n  .align-content-xl-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-xl-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-xl-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-xl-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-xl-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-xl-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-xl-center {\n    align-self: center !important;\n  }\n\n  .align-self-xl-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-xl-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-xl-first {\n    order: -1 !important;\n  }\n\n  .order-xl-0 {\n    order: 0 !important;\n  }\n\n  .order-xl-1 {\n    order: 1 !important;\n  }\n\n  .order-xl-2 {\n    order: 2 !important;\n  }\n\n  .order-xl-3 {\n    order: 3 !important;\n  }\n\n  .order-xl-4 {\n    order: 4 !important;\n  }\n\n  .order-xl-5 {\n    order: 5 !important;\n  }\n\n  .order-xl-last {\n    order: 6 !important;\n  }\n\n  .m-xl-0 {\n    margin: 0 !important;\n  }\n\n  .m-xl-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-xl-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-xl-3 {\n    margin: 1rem !important;\n  }\n\n  .m-xl-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-xl-5 {\n    margin: 3rem !important;\n  }\n\n  .m-xl-auto {\n    margin: auto !important;\n  }\n\n  .mx-xl-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-xl-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-xl-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-xl-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-xl-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-xl-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-xl-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-xl-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-xl-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-xl-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-xl-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-xl-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-xl-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-xl-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-xl-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-xl-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-xl-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-xl-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-xl-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-xl-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-xl-auto {\n    margin-top: auto !important;\n  }\n\n  .me-xl-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-xl-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-xl-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-xl-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-xl-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-xl-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-xl-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-xl-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-xl-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-xl-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-xl-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-xl-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-xl-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-xl-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-xl-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-xl-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-xl-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-xl-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-xl-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-xl-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-xl-auto {\n    margin-left: auto !important;\n  }\n\n  .p-xl-0 {\n    padding: 0 !important;\n  }\n\n  .p-xl-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-xl-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-xl-3 {\n    padding: 1rem !important;\n  }\n\n  .p-xl-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-xl-5 {\n    padding: 3rem !important;\n  }\n\n  .px-xl-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-xl-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-xl-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-xl-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-xl-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-xl-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-xl-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-xl-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-xl-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-xl-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-xl-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-xl-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-xl-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-xl-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-xl-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-xl-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-xl-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-xl-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-xl-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-xl-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-xl-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-xl-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-xl-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-xl-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-xl-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-xl-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-xl-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-xl-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-xl-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-xl-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-xl-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-xl-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-xl-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-xl-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-xl-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-xl-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-xl-start {\n    text-align: left !important;\n  }\n\n  .text-xl-end {\n    text-align: right !important;\n  }\n\n  .text-xl-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 1400px) {\n  .float-xxl-start {\n    float: left !important;\n  }\n\n  .float-xxl-end {\n    float: right !important;\n  }\n\n  .float-xxl-none {\n    float: none !important;\n  }\n\n  .d-xxl-inline {\n    display: inline !important;\n  }\n\n  .d-xxl-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-xxl-block {\n    display: block !important;\n  }\n\n  .d-xxl-grid {\n    display: grid !important;\n  }\n\n  .d-xxl-table {\n    display: table !important;\n  }\n\n  .d-xxl-table-row {\n    display: table-row !important;\n  }\n\n  .d-xxl-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-xxl-flex {\n    display: flex !important;\n  }\n\n  .d-xxl-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-xxl-none {\n    display: none !important;\n  }\n\n  .flex-xxl-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-xxl-row {\n    flex-direction: row !important;\n  }\n\n  .flex-xxl-column {\n    flex-direction: column !important;\n  }\n\n  .flex-xxl-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-xxl-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-xxl-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-xxl-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-xxl-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-xxl-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-xxl-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-xxl-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-xxl-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-xxl-0 {\n    gap: 0 !important;\n  }\n\n  .gap-xxl-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-xxl-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-xxl-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-xxl-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-xxl-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-xxl-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-xxl-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-xxl-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-xxl-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-xxl-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-xxl-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-xxl-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-xxl-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-xxl-center {\n    align-items: center !important;\n  }\n\n  .align-items-xxl-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-xxl-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-xxl-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-xxl-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-xxl-center {\n    align-content: center !important;\n  }\n\n  .align-content-xxl-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-xxl-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-xxl-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-xxl-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-xxl-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-xxl-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-xxl-center {\n    align-self: center !important;\n  }\n\n  .align-self-xxl-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-xxl-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-xxl-first {\n    order: -1 !important;\n  }\n\n  .order-xxl-0 {\n    order: 0 !important;\n  }\n\n  .order-xxl-1 {\n    order: 1 !important;\n  }\n\n  .order-xxl-2 {\n    order: 2 !important;\n  }\n\n  .order-xxl-3 {\n    order: 3 !important;\n  }\n\n  .order-xxl-4 {\n    order: 4 !important;\n  }\n\n  .order-xxl-5 {\n    order: 5 !important;\n  }\n\n  .order-xxl-last {\n    order: 6 !important;\n  }\n\n  .m-xxl-0 {\n    margin: 0 !important;\n  }\n\n  .m-xxl-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-xxl-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-xxl-3 {\n    margin: 1rem !important;\n  }\n\n  .m-xxl-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-xxl-5 {\n    margin: 3rem !important;\n  }\n\n  .m-xxl-auto {\n    margin: auto !important;\n  }\n\n  .mx-xxl-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-xxl-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-xxl-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-xxl-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-xxl-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-xxl-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-xxl-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-xxl-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-xxl-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-xxl-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-xxl-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-xxl-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-xxl-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-xxl-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-xxl-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-xxl-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-xxl-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-xxl-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-xxl-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-xxl-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-xxl-auto {\n    margin-top: auto !important;\n  }\n\n  .me-xxl-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-xxl-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-xxl-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-xxl-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-xxl-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-xxl-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-xxl-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-xxl-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-xxl-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-xxl-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-xxl-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-xxl-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-xxl-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-xxl-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-xxl-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-xxl-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-xxl-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-xxl-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-xxl-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-xxl-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-xxl-auto {\n    margin-left: auto !important;\n  }\n\n  .p-xxl-0 {\n    padding: 0 !important;\n  }\n\n  .p-xxl-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-xxl-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-xxl-3 {\n    padding: 1rem !important;\n  }\n\n  .p-xxl-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-xxl-5 {\n    padding: 3rem !important;\n  }\n\n  .px-xxl-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-xxl-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-xxl-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-xxl-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-xxl-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-xxl-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-xxl-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-xxl-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-xxl-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-xxl-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-xxl-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-xxl-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-xxl-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-xxl-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-xxl-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-xxl-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-xxl-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-xxl-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-xxl-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-xxl-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-xxl-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-xxl-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-xxl-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-xxl-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-xxl-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-xxl-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-xxl-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-xxl-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-xxl-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-xxl-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-xxl-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-xxl-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-xxl-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-xxl-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-xxl-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-xxl-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-xxl-start {\n    text-align: left !important;\n  }\n\n  .text-xxl-end {\n    text-align: right !important;\n  }\n\n  .text-xxl-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 1200px) {\n  .fs-1 {\n    font-size: 2.5rem !important;\n  }\n\n  .fs-2 {\n    font-size: 2rem !important;\n  }\n\n  .fs-3 {\n    font-size: 1.75rem !important;\n  }\n\n  .fs-4 {\n    font-size: 1.5rem !important;\n  }\n}\n@media print {\n  .d-print-inline {\n    display: inline !important;\n  }\n\n  .d-print-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-print-block {\n    display: block !important;\n  }\n\n  .d-print-grid {\n    display: grid !important;\n  }\n\n  .d-print-table {\n    display: table !important;\n  }\n\n  .d-print-table-row {\n    display: table-row !important;\n  }\n\n  .d-print-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-print-flex {\n    display: flex !important;\n  }\n\n  .d-print-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-print-none {\n    display: none !important;\n  }\n}\n\n/*# sourceMappingURL=bootstrap.css.map */","// stylelint-disable property-blacklist, scss/dollar-variable-default\n\n// SCSS RFS mixin\n//\n// Automated responsive values for font sizes, paddings, margins and much more\n//\n// Licensed under MIT (https://github.com/twbs/rfs/blob/main/LICENSE)\n\n// Configuration\n\n// Base value\n$rfs-base-value: 1.25rem !default;\n$rfs-unit: rem !default;\n\n@if $rfs-unit != rem and $rfs-unit != px {\n  @error \"`#{$rfs-unit}` is not a valid unit for $rfs-unit. Use `px` or `rem`.\";\n}\n\n// Breakpoint at where values start decreasing if screen width is smaller\n$rfs-breakpoint: 1200px !default;\n$rfs-breakpoint-unit: px !default;\n\n@if $rfs-breakpoint-unit != px and $rfs-breakpoint-unit != em and $rfs-breakpoint-unit != rem {\n  @error \"`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit. Use `px`, `em` or `rem`.\";\n}\n\n// Resize values based on screen height and width\n$rfs-two-dimensional: false !default;\n\n// Factor of decrease\n$rfs-factor: 10 !default;\n\n@if type-of($rfs-factor) != number or $rfs-factor <= 1 {\n  @error \"`#{$rfs-factor}` is not a valid  $rfs-factor, it must be greater than 1.\";\n}\n\n// Mode. Possibilities: \"min-media-query\", \"max-media-query\"\n$rfs-mode: min-media-query !default;\n\n// Generate enable or disable classes. Possibilities: false, \"enable\" or \"disable\"\n$rfs-class: false !default;\n\n// 1 rem = $rfs-rem-value px\n$rfs-rem-value: 16 !default;\n\n// Safari iframe resize bug: https://github.com/twbs/rfs/issues/14\n$rfs-safari-iframe-resize-bug-fix: false !default;\n\n// Disable RFS by setting $enable-rfs to false\n$enable-rfs: true !default;\n\n// Cache $rfs-base-value unit\n$rfs-base-value-unit: unit($rfs-base-value);\n\n@function divide($dividend, $divisor, $precision: 10) {\n  $sign: if($dividend > 0 and $divisor > 0 or $dividend < 0 and $divisor < 0, 1, -1);\n  $dividend: abs($dividend);\n  $divisor: abs($divisor);\n  @if $dividend == 0 {\n    @return 0;\n  }\n  @if $divisor == 0 {\n    @error \"Cannot divide by 0\";\n  }\n  $remainder: $dividend;\n  $result: 0;\n  $factor: 10;\n  @while ($remainder > 0 and $precision >= 0) {\n    $quotient: 0;\n    @while ($remainder >= $divisor) {\n      $remainder: $remainder - $divisor;\n      $quotient: $quotient + 1;\n    }\n    $result: $result * 10 + $quotient;\n    $factor: $factor * .1;\n    $remainder: $remainder * 10;\n    $precision: $precision - 1;\n    @if ($precision < 0 and $remainder >= $divisor * 5) {\n      $result: $result + 1;\n    }\n  }\n  $result: $result * $factor * $sign;\n  $dividend-unit: unit($dividend);\n  $divisor-unit: unit($divisor);\n  $unit-map: (\n    \"px\": 1px,\n    \"rem\": 1rem,\n    \"em\": 1em,\n    \"%\": 1%\n  );\n  @if ($dividend-unit != $divisor-unit and map-has-key($unit-map, $dividend-unit)) {\n    $result: $result * map-get($unit-map, $dividend-unit);\n  }\n  @return $result;\n}\n\n// Remove px-unit from $rfs-base-value for calculations\n@if $rfs-base-value-unit == px {\n  $rfs-base-value: divide($rfs-base-value, $rfs-base-value * 0 + 1);\n}\n@else if $rfs-base-value-unit == rem {\n  $rfs-base-value: divide($rfs-base-value, divide($rfs-base-value * 0 + 1, $rfs-rem-value));\n}\n\n// Cache $rfs-breakpoint unit to prevent multiple calls\n$rfs-breakpoint-unit-cache: unit($rfs-breakpoint);\n\n// Remove unit from $rfs-breakpoint for calculations\n@if $rfs-breakpoint-unit-cache == px {\n  $rfs-breakpoint: divide($rfs-breakpoint, $rfs-breakpoint * 0 + 1);\n}\n@else if $rfs-breakpoint-unit-cache == rem or $rfs-breakpoint-unit-cache == \"em\" {\n  $rfs-breakpoint: divide($rfs-breakpoint, divide($rfs-breakpoint * 0 + 1, $rfs-rem-value));\n}\n\n// Calculate the media query value\n$rfs-mq-value: if($rfs-breakpoint-unit == px, #{$rfs-breakpoint}px, #{divide($rfs-breakpoint, $rfs-rem-value)}#{$rfs-breakpoint-unit});\n$rfs-mq-property-width: if($rfs-mode == max-media-query, max-width, min-width);\n$rfs-mq-property-height: if($rfs-mode == max-media-query, max-height, min-height);\n\n// Internal mixin used to determine which media query needs to be used\n@mixin _rfs-media-query {\n  @if $rfs-two-dimensional {\n    @if $rfs-mode == max-media-query {\n      @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}), (#{$rfs-mq-property-height}: #{$rfs-mq-value}) {\n        @content;\n      }\n    }\n    @else {\n      @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) and (#{$rfs-mq-property-height}: #{$rfs-mq-value}) {\n        @content;\n      }\n    }\n  }\n  @else {\n    @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) {\n      @content;\n    }\n  }\n}\n\n// Internal mixin that adds disable classes to the selector if needed.\n@mixin _rfs-rule {\n  @if $rfs-class == disable and $rfs-mode == max-media-query {\n    // Adding an extra class increases specificity, which prevents the media query to override the property\n    &,\n    .disable-rfs &,\n    &.disable-rfs {\n      @content;\n    }\n  }\n  @else if $rfs-class == enable and $rfs-mode == min-media-query {\n    .enable-rfs &,\n    &.enable-rfs {\n      @content;\n    }\n  }\n  @else {\n    @content;\n  }\n}\n\n// Internal mixin that adds enable classes to the selector if needed.\n@mixin _rfs-media-query-rule {\n\n  @if $rfs-class == enable {\n    @if $rfs-mode == min-media-query {\n      @content;\n    }\n\n    @include _rfs-media-query {\n      .enable-rfs &,\n      &.enable-rfs {\n        @content;\n      }\n    }\n  }\n  @else {\n    @if $rfs-class == disable and $rfs-mode == min-media-query {\n      .disable-rfs &,\n      &.disable-rfs {\n        @content;\n      }\n    }\n    @include _rfs-media-query {\n      @content;\n    }\n  }\n}\n\n// Helper function to get the formatted non-responsive value\n@function rfs-value($values) {\n  // Convert to list\n  $values: if(type-of($values) != list, ($values,), $values);\n\n  $val: '';\n\n  // Loop over each value and calculate value\n  @each $value in $values {\n    @if $value == 0 {\n      $val: $val + ' 0';\n    }\n    @else {\n      // Cache $value unit\n      $unit: if(type-of($value) == \"number\", unit($value), false);\n\n      @if $unit == px {\n        // Convert to rem if needed\n        $val: $val + ' ' + if($rfs-unit == rem, #{divide($value, $value * 0 + $rfs-rem-value)}rem, $value);\n      }\n      @else if $unit == rem {\n        // Convert to px if needed\n        $val: $val + ' ' + if($rfs-unit == px, #{divide($value, $value * 0 + 1) * $rfs-rem-value}px, $value);\n      }\n      @else {\n        // If $value isn't a number (like inherit) or $value has a unit (not px or rem, like 1.5em) or $ is 0, just print the value\n        $val: $val + ' ' + $value;\n      }\n    }\n  }\n\n  // Remove first space\n  @return unquote(str-slice($val, 2));\n}\n\n// Helper function to get the responsive value calculated by RFS\n@function rfs-fluid-value($values) {\n  // Convert to list\n  $values: if(type-of($values) != list, ($values,), $values);\n\n  $val: '';\n\n  // Loop over each value and calculate value\n  @each $value in $values {\n    @if $value == 0 {\n      $val: $val + ' 0';\n    }\n\n    @else {\n      // Cache $value unit\n      $unit: if(type-of($value) == \"number\", unit($value), false);\n\n      // If $value isn't a number (like inherit) or $value has a unit (not px or rem, like 1.5em) or $ is 0, just print the value\n      @if not $unit or $unit != px and $unit != rem {\n        $val: $val + ' ' + $value;\n      }\n\n      @else {\n        // Remove unit from $value for calculations\n        $value: divide($value, $value * 0 + if($unit == px, 1, divide(1, $rfs-rem-value)));\n\n        // Only add the media query if the value is greater than the minimum value\n        @if abs($value) <= $rfs-base-value or not $enable-rfs {\n          $val: $val + ' ' +  if($rfs-unit == rem, #{divide($value, $rfs-rem-value)}rem, #{$value}px);\n        }\n        @else {\n          // Calculate the minimum value\n          $value-min: $rfs-base-value + divide(abs($value) - $rfs-base-value, $rfs-factor);\n\n          // Calculate difference between $value and the minimum value\n          $value-diff: abs($value) - $value-min;\n\n          // Base value formatting\n          $min-width: if($rfs-unit == rem, #{divide($value-min, $rfs-rem-value)}rem, #{$value-min}px);\n\n          // Use negative value if needed\n          $min-width: if($value < 0, -$min-width, $min-width);\n\n          // Use `vmin` if two-dimensional is enabled\n          $variable-unit: if($rfs-two-dimensional, vmin, vw);\n\n          // Calculate the variable width between 0 and $rfs-breakpoint\n          $variable-width: #{divide($value-diff * 100, $rfs-breakpoint)}#{$variable-unit};\n\n          // Return the calculated value\n          $val: $val + ' calc(' + $min-width + if($value < 0, ' - ', ' + ') + $variable-width + ')';\n        }\n      }\n    }\n  }\n\n  // Remove first space\n  @return unquote(str-slice($val, 2));\n}\n\n// RFS mixin\n@mixin rfs($values, $property: font-size) {\n  @if $values != null {\n    $val: rfs-value($values);\n    $fluidVal: rfs-fluid-value($values);\n\n    // Do not print the media query if responsive & non-responsive values are the same\n    @if $val == $fluidVal {\n      #{$property}: $val;\n    }\n    @else {\n      @include _rfs-rule {\n        #{$property}: if($rfs-mode == max-media-query, $val, $fluidVal);\n\n        // Include safari iframe resize fix if needed\n        min-width: if($rfs-safari-iframe-resize-bug-fix, (0 * 1vw), null);\n      }\n\n      @include _rfs-media-query-rule {\n        #{$property}: if($rfs-mode == max-media-query, $fluidVal, $val);\n      }\n    }\n  }\n}\n\n// Shorthand helper mixins\n@mixin font-size($value) {\n  @include rfs($value);\n}\n\n@mixin padding($value) {\n  @include rfs($value, padding);\n}\n\n@mixin padding-top($value) {\n  @include rfs($value, padding-top);\n}\n\n@mixin padding-right($value) {\n  @include rfs($value, padding-right);\n}\n\n@mixin padding-bottom($value) {\n  @include rfs($value, padding-bottom);\n}\n\n@mixin padding-left($value) {\n  @include rfs($value, padding-left);\n}\n\n@mixin margin($value) {\n  @include rfs($value, margin);\n}\n\n@mixin margin-top($value) {\n  @include rfs($value, margin-top);\n}\n\n@mixin margin-right($value) {\n  @include rfs($value, margin-right);\n}\n\n@mixin margin-bottom($value) {\n  @include rfs($value, margin-bottom);\n}\n\n@mixin margin-left($value) {\n  @include rfs($value, margin-left);\n}\n","// stylelint-disable property-disallowed-list\n// Single side border-radius\n\n// Helper function to replace negative values with 0\n@function valid-radius($radius) {\n  $return: ();\n  @each $value in $radius {\n    @if type-of($value) == number {\n      $return: append($return, max($value, 0));\n    } @else {\n      $return: append($return, $value);\n    }\n  }\n  @return $return;\n}\n\n// scss-docs-start border-radius-mixins\n@mixin border-radius($radius: $border-radius, $fallback-border-radius: false) {\n  @if $enable-rounded {\n    border-radius: valid-radius($radius);\n  }\n  @else if $fallback-border-radius != false {\n    border-radius: $fallback-border-radius;\n  }\n}\n\n@mixin border-top-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-left-radius: valid-radius($radius);\n    border-top-right-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-end-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-right-radius: valid-radius($radius);\n    border-bottom-right-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-bottom-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-bottom-right-radius: valid-radius($radius);\n    border-bottom-left-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-start-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-left-radius: valid-radius($radius);\n    border-bottom-left-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-top-start-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-left-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-top-end-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-right-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-bottom-end-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-bottom-right-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-bottom-start-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-bottom-left-radius: valid-radius($radius);\n  }\n}\n// scss-docs-end border-radius-mixins\n","//\n// Headings\n//\n.h1 {\n  @extend h1;\n}\n\n.h2 {\n  @extend h2;\n}\n\n.h3 {\n  @extend h3;\n}\n\n.h4 {\n  @extend h4;\n}\n\n.h5 {\n  @extend h5;\n}\n\n.h6 {\n  @extend h6;\n}\n\n\n.lead {\n  @include font-size($lead-font-size);\n  font-weight: $lead-font-weight;\n}\n\n// Type display classes\n@each $display, $font-size in $display-font-sizes {\n  .display-#{$display} {\n    @include font-size($font-size);\n    font-weight: $display-font-weight;\n    line-height: $display-line-height;\n  }\n}\n\n//\n// Emphasis\n//\n.small {\n  @extend small;\n}\n\n.mark {\n  @extend mark;\n}\n\n//\n// Lists\n//\n\n.list-unstyled {\n  @include list-unstyled();\n}\n\n// Inline turns list items into inline-block\n.list-inline {\n  @include list-unstyled();\n}\n.list-inline-item {\n  display: inline-block;\n\n  &:not(:last-child) {\n    margin-right: $list-inline-padding;\n  }\n}\n\n\n//\n// Misc\n//\n\n// Builds on `abbr`\n.initialism {\n  @include font-size($initialism-font-size);\n  text-transform: uppercase;\n}\n\n// Blockquotes\n.blockquote {\n  margin-bottom: $blockquote-margin-y;\n  @include font-size($blockquote-font-size);\n\n  > :last-child {\n    margin-bottom: 0;\n  }\n}\n\n.blockquote-footer {\n  margin-top: -$blockquote-margin-y;\n  margin-bottom: $blockquote-margin-y;\n  @include font-size($blockquote-footer-font-size);\n  color: $blockquote-footer-color;\n\n  &::before {\n    content: \"\\2014\\00A0\"; // em dash, nbsp\n  }\n}\n","// Lists\n\n// Unstyled keeps list items block level, just removes default browser padding and list-style\n@mixin list-unstyled {\n  padding-left: 0;\n  list-style: none;\n}\n","// Responsive images (ensure images don't scale beyond their parents)\n//\n// This is purposefully opt-in via an explicit class rather than being the default for all `<img>`s.\n// We previously tried the \"images are responsive by default\" approach in Bootstrap v2,\n// and abandoned it in Bootstrap v3 because it breaks lots of third-party widgets (including Google Maps)\n// which weren't expecting the images within themselves to be involuntarily resized.\n// See also https://github.com/twbs/bootstrap/issues/18178\n.img-fluid {\n  @include img-fluid();\n}\n\n\n// Image thumbnails\n.img-thumbnail {\n  padding: $thumbnail-padding;\n  background-color: $thumbnail-bg;\n  border: $thumbnail-border-width solid $thumbnail-border-color;\n  @include border-radius($thumbnail-border-radius);\n  @include box-shadow($thumbnail-box-shadow);\n\n  // Keep them at most 100% wide\n  @include img-fluid();\n}\n\n//\n// Figures\n//\n\n.figure {\n  // Ensures the caption's text aligns with the image.\n  display: inline-block;\n}\n\n.figure-img {\n  margin-bottom: $spacer * .5;\n  line-height: 1;\n}\n\n.figure-caption {\n  @include font-size($figure-caption-font-size);\n  color: $figure-caption-color;\n}\n","// Image Mixins\n// - Responsive image\n// - Retina image\n\n\n// Responsive image\n//\n// Keep images from scaling beyond the width of their parents.\n\n@mixin img-fluid {\n  // Part 1: Set a maximum relative to the parent\n  max-width: 100%;\n  // Part 2: Override the height to auto, otherwise images will be stretched\n  // when setting a width and height attribute on the img element.\n  height: auto;\n}\n","// Container widths\n//\n// Set the container width, and override it for fixed navbars in media queries.\n\n@if $enable-grid-classes {\n  // Single container class with breakpoint max-widths\n  .container,\n  // 100% wide container at all breakpoints\n  .container-fluid {\n    @include make-container();\n  }\n\n  // Responsive containers that are 100% wide until a breakpoint\n  @each $breakpoint, $container-max-width in $container-max-widths {\n    .container-#{$breakpoint} {\n      @extend .container-fluid;\n    }\n\n    @include media-breakpoint-up($breakpoint, $grid-breakpoints) {\n      %responsive-container-#{$breakpoint} {\n        max-width: $container-max-width;\n      }\n\n      // Extend each breakpoint which is smaller or equal to the current breakpoint\n      $extend-breakpoint: true;\n\n      @each $name, $width in $grid-breakpoints {\n        @if ($extend-breakpoint) {\n          .container#{breakpoint-infix($name, $grid-breakpoints)} {\n            @extend %responsive-container-#{$breakpoint};\n          }\n\n          // Once the current breakpoint is reached, stop extending\n          @if ($breakpoint == $name) {\n            $extend-breakpoint: false;\n          }\n        }\n      }\n    }\n  }\n}\n","// Container mixins\n\n@mixin make-container($gutter: $container-padding-x) {\n  width: 100%;\n  padding-right: var(--#{$variable-prefix}gutter-x, #{$gutter});\n  padding-left: var(--#{$variable-prefix}gutter-x, #{$gutter});\n  margin-right: auto;\n  margin-left: auto;\n}\n","// Breakpoint viewport sizes and media queries.\n//\n// Breakpoints are defined as a map of (name: minimum width), order from small to large:\n//\n//    (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px)\n//\n// The map defined in the `$grid-breakpoints` global variable is used as the `$breakpoints` argument by default.\n\n// Name of the next breakpoint, or null for the last breakpoint.\n//\n//    >> breakpoint-next(sm)\n//    md\n//    >> breakpoint-next(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    md\n//    >> breakpoint-next(sm, $breakpoint-names: (xs sm md lg xl))\n//    md\n@function breakpoint-next($name, $breakpoints: $grid-breakpoints, $breakpoint-names: map-keys($breakpoints)) {\n  $n: index($breakpoint-names, $name);\n  @if not $n {\n    @error \"breakpoint `#{$name}` not found in `#{$breakpoints}`\";\n  }\n  @return if($n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null);\n}\n\n// Minimum breakpoint width. Null for the smallest (first) breakpoint.\n//\n//    >> breakpoint-min(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    576px\n@function breakpoint-min($name, $breakpoints: $grid-breakpoints) {\n  $min: map-get($breakpoints, $name);\n  @return if($min != 0, $min, null);\n}\n\n// Maximum breakpoint width.\n// The maximum value is reduced by 0.02px to work around the limitations of\n// `min-` and `max-` prefixes and viewports with fractional widths.\n// See https://www.w3.org/TR/mediaqueries-4/#mq-min-max\n// Uses 0.02px rather than 0.01px to work around a current rounding bug in Safari.\n// See https://bugs.webkit.org/show_bug.cgi?id=178261\n//\n//    >> breakpoint-max(md, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    767.98px\n@function breakpoint-max($name, $breakpoints: $grid-breakpoints) {\n  $max: map-get($breakpoints, $name);\n  @return if($max and $max > 0, $max - .02, null);\n}\n\n// Returns a blank string if smallest breakpoint, otherwise returns the name with a dash in front.\n// Useful for making responsive utilities.\n//\n//    >> breakpoint-infix(xs, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    \"\"  (Returns a blank string)\n//    >> breakpoint-infix(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    \"-sm\"\n@function breakpoint-infix($name, $breakpoints: $grid-breakpoints) {\n  @return if(breakpoint-min($name, $breakpoints) == null, \"\", \"-#{$name}\");\n}\n\n// Media of at least the minimum breakpoint width. No query for the smallest breakpoint.\n// Makes the @content apply to the given breakpoint and wider.\n@mixin media-breakpoint-up($name, $breakpoints: $grid-breakpoints) {\n  $min: breakpoint-min($name, $breakpoints);\n  @if $min {\n    @media (min-width: $min) {\n      @content;\n    }\n  } @else {\n    @content;\n  }\n}\n\n// Media of at most the maximum breakpoint width. No query for the largest breakpoint.\n// Makes the @content apply to the given breakpoint and narrower.\n@mixin media-breakpoint-down($name, $breakpoints: $grid-breakpoints) {\n  $max: breakpoint-max($name, $breakpoints);\n  @if $max {\n    @media (max-width: $max) {\n      @content;\n    }\n  } @else {\n    @content;\n  }\n}\n\n// Media that spans multiple breakpoint widths.\n// Makes the @content apply between the min and max breakpoints\n@mixin media-breakpoint-between($lower, $upper, $breakpoints: $grid-breakpoints) {\n  $min: breakpoint-min($lower, $breakpoints);\n  $max: breakpoint-max($upper, $breakpoints);\n\n  @if $min != null and $max != null {\n    @media (min-width: $min) and (max-width: $max) {\n      @content;\n    }\n  } @else if $max == null {\n    @include media-breakpoint-up($lower, $breakpoints) {\n      @content;\n    }\n  } @else if $min == null {\n    @include media-breakpoint-down($upper, $breakpoints) {\n      @content;\n    }\n  }\n}\n\n// Media between the breakpoint's minimum and maximum widths.\n// No minimum for the smallest breakpoint, and no maximum for the largest one.\n// Makes the @content apply only to the given breakpoint, not viewports any wider or narrower.\n@mixin media-breakpoint-only($name, $breakpoints: $grid-breakpoints) {\n  $min:  breakpoint-min($name, $breakpoints);\n  $next: breakpoint-next($name, $breakpoints);\n  $max:  breakpoint-max($next);\n\n  @if $min != null and $max != null {\n    @media (min-width: $min) and (max-width: $max) {\n      @content;\n    }\n  } @else if $max == null {\n    @include media-breakpoint-up($name, $breakpoints) {\n      @content;\n    }\n  } @else if $min == null {\n    @include media-breakpoint-down($next, $breakpoints) {\n      @content;\n    }\n  }\n}\n","// Row\n//\n// Rows contain your columns.\n\n@if $enable-grid-classes {\n  .row {\n    @include make-row();\n\n    > * {\n      @include make-col-ready();\n    }\n  }\n}\n\n@if $enable-cssgrid {\n  .grid {\n    display: grid;\n    grid-template-rows: repeat(var(--#{$variable-prefix}rows, 1), 1fr);\n    grid-template-columns: repeat(var(--#{$variable-prefix}columns, #{$grid-columns}), 1fr);\n    gap: var(--#{$variable-prefix}gap, #{$grid-gutter-width});\n\n    @include make-cssgrid();\n  }\n}\n\n\n// Columns\n//\n// Common styles for small and large grid columns\n\n@if $enable-grid-classes {\n  @include make-grid-columns();\n}\n","// Grid system\n//\n// Generate semantic grid columns with these mixins.\n\n@mixin make-row($gutter: $grid-gutter-width) {\n  --#{$variable-prefix}gutter-x: #{$gutter};\n  --#{$variable-prefix}gutter-y: 0;\n  display: flex;\n  flex-wrap: wrap;\n  margin-top: calc(var(--#{$variable-prefix}gutter-y) * -1); // stylelint-disable-line function-disallowed-list\n  margin-right: calc(var(--#{$variable-prefix}gutter-x) * -.5); // stylelint-disable-line function-disallowed-list\n  margin-left: calc(var(--#{$variable-prefix}gutter-x) * -.5); // stylelint-disable-line function-disallowed-list\n}\n\n@mixin make-col-ready($gutter: $grid-gutter-width) {\n  // Add box sizing if only the grid is loaded\n  box-sizing: if(variable-exists(include-column-box-sizing) and $include-column-box-sizing, border-box, null);\n  // Prevent columns from becoming too narrow when at smaller grid tiers by\n  // always setting `width: 100%;`. This works because we set the width\n  // later on to override this initial width.\n  flex-shrink: 0;\n  width: 100%;\n  max-width: 100%; // Prevent `.col-auto`, `.col` (& responsive variants) from breaking out the grid\n  padding-right: calc(var(--#{$variable-prefix}gutter-x) * .5); // stylelint-disable-line function-disallowed-list\n  padding-left: calc(var(--#{$variable-prefix}gutter-x) * .5); // stylelint-disable-line function-disallowed-list\n  margin-top: var(--#{$variable-prefix}gutter-y);\n}\n\n@mixin make-col($size: false, $columns: $grid-columns) {\n  @if $size {\n    flex: 0 0 auto;\n    width: percentage(divide($size, $columns));\n\n  } @else {\n    flex: 1 1 0;\n    max-width: 100%;\n  }\n}\n\n@mixin make-col-auto() {\n  flex: 0 0 auto;\n  width: auto;\n}\n\n@mixin make-col-offset($size, $columns: $grid-columns) {\n  $num: divide($size, $columns);\n  margin-left: if($num == 0, 0, percentage($num));\n}\n\n// Row columns\n//\n// Specify on a parent element(e.g., .row) to force immediate children into NN\n// numberof columns. Supports wrapping to new lines, but does not do a Masonry\n// style grid.\n@mixin row-cols($count) {\n  > * {\n    flex: 0 0 auto;\n    width: divide(100%, $count);\n  }\n}\n\n// Framework grid generation\n//\n// Used only by Bootstrap to generate the correct number of grid classes given\n// any value of `$grid-columns`.\n\n@mixin make-grid-columns($columns: $grid-columns, $gutter: $grid-gutter-width, $breakpoints: $grid-breakpoints) {\n  @each $breakpoint in map-keys($breakpoints) {\n    $infix: breakpoint-infix($breakpoint, $breakpoints);\n\n    @include media-breakpoint-up($breakpoint, $breakpoints) {\n      // Provide basic `.col-{bp}` classes for equal-width flexbox columns\n      .col#{$infix} {\n        flex: 1 0 0%; // Flexbugs #4: https://github.com/philipwalton/flexbugs#flexbug-4\n      }\n\n      .row-cols#{$infix}-auto > * {\n        @include make-col-auto();\n      }\n\n      @if $grid-row-columns > 0 {\n        @for $i from 1 through $grid-row-columns {\n          .row-cols#{$infix}-#{$i} {\n            @include row-cols($i);\n          }\n        }\n      }\n\n      .col#{$infix}-auto {\n        @include make-col-auto();\n      }\n\n      @if $columns > 0 {\n        @for $i from 1 through $columns {\n          .col#{$infix}-#{$i} {\n            @include make-col($i, $columns);\n          }\n        }\n\n        // `$columns - 1` because offsetting by the width of an entire row isn't possible\n        @for $i from 0 through ($columns - 1) {\n          @if not ($infix == \"\" and $i == 0) { // Avoid emitting useless .offset-0\n            .offset#{$infix}-#{$i} {\n              @include make-col-offset($i, $columns);\n            }\n          }\n        }\n      }\n\n      // Gutters\n      //\n      // Make use of `.g-*`, `.gx-*` or `.gy-*` utilities to change spacing between the columns.\n      @each $key, $value in $gutters {\n        .g#{$infix}-#{$key},\n        .gx#{$infix}-#{$key} {\n          --#{$variable-prefix}gutter-x: #{$value};\n        }\n\n        .g#{$infix}-#{$key},\n        .gy#{$infix}-#{$key} {\n          --#{$variable-prefix}gutter-y: #{$value};\n        }\n      }\n    }\n  }\n}\n\n@mixin make-cssgrid($columns: $grid-columns, $breakpoints: $grid-breakpoints) {\n  @each $breakpoint in map-keys($breakpoints) {\n    $infix: breakpoint-infix($breakpoint, $breakpoints);\n\n    @include media-breakpoint-up($breakpoint, $breakpoints) {\n      @if $columns > 0 {\n        @for $i from 1 through $columns {\n          .g-col#{$infix}-#{$i} {\n            grid-column: auto / span $i;\n          }\n        }\n\n        // Start with `1` because `0` is and invalid value.\n        // Ends with `$columns - 1` because offsetting by the width of an entire row isn't possible.\n        @for $i from 1 through ($columns - 1) {\n          .g-start#{$infix}-#{$i} {\n            grid-column-start: $i;\n          }\n        }\n      }\n    }\n  }\n}\n","//\n// Basic Bootstrap table\n//\n\n.table {\n  --#{$variable-prefix}table-bg: #{$table-bg};\n  --#{$variable-prefix}table-accent-bg: #{$table-accent-bg};\n  --#{$variable-prefix}table-striped-color: #{$table-striped-color};\n  --#{$variable-prefix}table-striped-bg: #{$table-striped-bg};\n  --#{$variable-prefix}table-active-color: #{$table-active-color};\n  --#{$variable-prefix}table-active-bg: #{$table-active-bg};\n  --#{$variable-prefix}table-hover-color: #{$table-hover-color};\n  --#{$variable-prefix}table-hover-bg: #{$table-hover-bg};\n\n  width: 100%;\n  margin-bottom: $spacer;\n  color: $table-color;\n  vertical-align: $table-cell-vertical-align;\n  border-color: $table-border-color;\n\n  // Target th & td\n  // We need the child combinator to prevent styles leaking to nested tables which doesn't have a `.table` class.\n  // We use the universal selectors here to simplify the selector (else we would need 6 different selectors).\n  // Another advantage is that this generates less code and makes the selector less specific making it easier to override.\n  // stylelint-disable-next-line selector-max-universal\n  > :not(caption) > * > * {\n    padding: $table-cell-padding-y $table-cell-padding-x;\n    background-color: var(--#{$variable-prefix}table-bg);\n    border-bottom-width: $table-border-width;\n    box-shadow: inset 0 0 0 9999px var(--#{$variable-prefix}table-accent-bg);\n  }\n\n  > tbody {\n    vertical-align: inherit;\n  }\n\n  > thead {\n    vertical-align: bottom;\n  }\n\n  // Highlight border color between thead, tbody and tfoot.\n  > :not(:last-child) > :last-child > * {\n    border-bottom-color: $table-group-separator-color;\n  }\n}\n\n\n//\n// Change placement of captions with a class\n//\n\n.caption-top {\n  caption-side: top;\n}\n\n\n//\n// Condensed table w/ half padding\n//\n\n.table-sm {\n  // stylelint-disable-next-line selector-max-universal\n  > :not(caption) > * > * {\n    padding: $table-cell-padding-y-sm $table-cell-padding-x-sm;\n  }\n}\n\n\n// Border versions\n//\n// Add or remove borders all around the table and between all the columns.\n//\n// When borders are added on all sides of the cells, the corners can render odd when\n// these borders do not have the same color or if they are semi-transparent.\n// Therefor we add top and border bottoms to the `tr`s and left and right borders\n// to the `td`s or `th`s\n\n.table-bordered {\n  > :not(caption) > * {\n    border-width: $table-border-width 0;\n\n    // stylelint-disable-next-line selector-max-universal\n    > * {\n      border-width: 0 $table-border-width;\n    }\n  }\n}\n\n.table-borderless {\n  // stylelint-disable-next-line selector-max-universal\n  > :not(caption) > * > * {\n    border-bottom-width: 0;\n  }\n}\n\n// Zebra-striping\n//\n// Default zebra-stripe styles (alternating gray and transparent backgrounds)\n\n.table-striped {\n  > tbody > tr:nth-of-type(#{$table-striped-order}) {\n    --#{$variable-prefix}table-accent-bg: var(--#{$variable-prefix}table-striped-bg);\n    color: var(--#{$variable-prefix}table-striped-color);\n  }\n}\n\n// Active table\n//\n// The `.table-active` class can be added to highlight rows or cells\n\n.table-active {\n  --#{$variable-prefix}table-accent-bg: var(--#{$variable-prefix}table-active-bg);\n  color: var(--#{$variable-prefix}table-active-color);\n}\n\n// Hover effect\n//\n// Placed here since it has to come after the potential zebra striping\n\n.table-hover {\n  > tbody > tr:hover {\n    --#{$variable-prefix}table-accent-bg: var(--#{$variable-prefix}table-hover-bg);\n    color: var(--#{$variable-prefix}table-hover-color);\n  }\n}\n\n\n// Table variants\n//\n// Table variants set the table cell backgrounds, border colors\n// and the colors of the striped, hovered & active tables\n\n@each $color, $value in $table-variants {\n  @include table-variant($color, $value);\n}\n\n// Responsive tables\n//\n// Generate series of `.table-responsive-*` classes for configuring the screen\n// size of where your table will overflow.\n\n@each $breakpoint in map-keys($grid-breakpoints) {\n  $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n  @include media-breakpoint-down($breakpoint) {\n    .table-responsive#{$infix} {\n      overflow-x: auto;\n      -webkit-overflow-scrolling: touch;\n    }\n  }\n}\n","// scss-docs-start table-variant\n@mixin table-variant($state, $background) {\n  .table-#{$state} {\n    $color: color-contrast(opaque($body-bg, $background));\n    $hover-bg: mix($color, $background, percentage($table-hover-bg-factor));\n    $striped-bg: mix($color, $background, percentage($table-striped-bg-factor));\n    $active-bg: mix($color, $background, percentage($table-active-bg-factor));\n\n    --#{$variable-prefix}table-bg: #{$background};\n    --#{$variable-prefix}table-striped-bg: #{$striped-bg};\n    --#{$variable-prefix}table-striped-color: #{color-contrast($striped-bg)};\n    --#{$variable-prefix}table-active-bg: #{$active-bg};\n    --#{$variable-prefix}table-active-color: #{color-contrast($active-bg)};\n    --#{$variable-prefix}table-hover-bg: #{$hover-bg};\n    --#{$variable-prefix}table-hover-color: #{color-contrast($hover-bg)};\n\n    color: $color;\n    border-color: mix($color, $background, percentage($table-border-factor));\n  }\n}\n// scss-docs-end table-variant\n","//\n// Labels\n//\n\n.form-label {\n  margin-bottom: $form-label-margin-bottom;\n  @include font-size($form-label-font-size);\n  font-style: $form-label-font-style;\n  font-weight: $form-label-font-weight;\n  color: $form-label-color;\n}\n\n// For use with horizontal and inline forms, when you need the label (or legend)\n// text to align with the form controls.\n.col-form-label {\n  padding-top: add($input-padding-y, $input-border-width);\n  padding-bottom: add($input-padding-y, $input-border-width);\n  margin-bottom: 0; // Override the `<legend>` default\n  @include font-size(inherit); // Override the `<legend>` default\n  font-style: $form-label-font-style;\n  font-weight: $form-label-font-weight;\n  line-height: $input-line-height;\n  color: $form-label-color;\n}\n\n.col-form-label-lg {\n  padding-top: add($input-padding-y-lg, $input-border-width);\n  padding-bottom: add($input-padding-y-lg, $input-border-width);\n  @include font-size($input-font-size-lg);\n}\n\n.col-form-label-sm {\n  padding-top: add($input-padding-y-sm, $input-border-width);\n  padding-bottom: add($input-padding-y-sm, $input-border-width);\n  @include font-size($input-font-size-sm);\n}\n","//\n// Form text\n//\n\n.form-text {\n  margin-top: $form-text-margin-top;\n  @include font-size($form-text-font-size);\n  font-style: $form-text-font-style;\n  font-weight: $form-text-font-weight;\n  color: $form-text-color;\n}\n","//\n// General form controls (plus a few specific high-level interventions)\n//\n\n.form-control {\n  display: block;\n  width: 100%;\n  padding: $input-padding-y $input-padding-x;\n  font-family: $input-font-family;\n  @include font-size($input-font-size);\n  font-weight: $input-font-weight;\n  line-height: $input-line-height;\n  color: $input-color;\n  background-color: $input-bg;\n  background-clip: padding-box;\n  border: $input-border-width solid $input-border-color;\n  appearance: none; // Fix appearance for date inputs in Safari\n\n  // Note: This has no effect on <select>s in some browsers, due to the limited stylability of `<select>`s in CSS.\n  @include border-radius($input-border-radius, 0);\n\n  @include box-shadow($input-box-shadow);\n  @include transition($input-transition);\n\n  &[type=\"file\"] {\n    overflow: hidden; // prevent pseudo element button overlap\n\n    &:not(:disabled):not([readonly]) {\n      cursor: pointer;\n    }\n  }\n\n  // Customize the `:focus` state to imitate native WebKit styles.\n  &:focus {\n    color: $input-focus-color;\n    background-color: $input-focus-bg;\n    border-color: $input-focus-border-color;\n    outline: 0;\n    @if $enable-shadows {\n      @include box-shadow($input-box-shadow, $input-focus-box-shadow);\n    } @else {\n      // Avoid using mixin so we can pass custom focus shadow properly\n      box-shadow: $input-focus-box-shadow;\n    }\n  }\n\n  // Add some height to date inputs on iOS\n  // https://github.com/twbs/bootstrap/issues/23307\n  // TODO: we can remove this workaround once https://bugs.webkit.org/show_bug.cgi?id=198959 is resolved\n  &::-webkit-date-and-time-value {\n    // Multiply line-height by 1em if it has no unit\n    height: if(unit($input-line-height) == \"\", $input-line-height * 1em, $input-line-height);\n  }\n\n  // Placeholder\n  &::placeholder {\n    color: $input-placeholder-color;\n    // Override Firefox's unusual default opacity; see https://github.com/twbs/bootstrap/pull/11526.\n    opacity: 1;\n  }\n\n  // Disabled and read-only inputs\n  //\n  // HTML5 says that controls under a fieldset > legend:first-child won't be\n  // disabled if the fieldset is disabled. Due to implementation difficulty, we\n  // don't honor that edge case; we style them as disabled anyway.\n  &:disabled,\n  &[readonly] {\n    background-color: $input-disabled-bg;\n    border-color: $input-disabled-border-color;\n    // iOS fix for unreadable disabled content; see https://github.com/twbs/bootstrap/issues/11655.\n    opacity: 1;\n  }\n\n  // File input buttons theming\n  &::file-selector-button {\n    padding: $input-padding-y $input-padding-x;\n    margin: (-$input-padding-y) (-$input-padding-x);\n    margin-inline-end: $input-padding-x;\n    color: $form-file-button-color;\n    @include gradient-bg($form-file-button-bg);\n    pointer-events: none;\n    border-color: inherit;\n    border-style: solid;\n    border-width: 0;\n    border-inline-end-width: $input-border-width;\n    border-radius: 0; // stylelint-disable-line property-disallowed-list\n    @include transition($btn-transition);\n  }\n\n  &:hover:not(:disabled):not([readonly])::file-selector-button {\n    background-color: $form-file-button-hover-bg;\n  }\n\n  &::-webkit-file-upload-button {\n    padding: $input-padding-y $input-padding-x;\n    margin: (-$input-padding-y) (-$input-padding-x);\n    margin-inline-end: $input-padding-x;\n    color: $form-file-button-color;\n    @include gradient-bg($form-file-button-bg);\n    pointer-events: none;\n    border-color: inherit;\n    border-style: solid;\n    border-width: 0;\n    border-inline-end-width: $input-border-width;\n    border-radius: 0; // stylelint-disable-line property-disallowed-list\n    @include transition($btn-transition);\n  }\n\n  &:hover:not(:disabled):not([readonly])::-webkit-file-upload-button {\n    background-color: $form-file-button-hover-bg;\n  }\n}\n\n// Readonly controls as plain text\n//\n// Apply class to a readonly input to make it appear like regular plain\n// text (without any border, background color, focus indicator)\n\n.form-control-plaintext {\n  display: block;\n  width: 100%;\n  padding: $input-padding-y 0;\n  margin-bottom: 0; // match inputs if this class comes on inputs with default margins\n  line-height: $input-line-height;\n  color: $input-plaintext-color;\n  background-color: transparent;\n  border: solid transparent;\n  border-width: $input-border-width 0;\n\n  &.form-control-sm,\n  &.form-control-lg {\n    padding-right: 0;\n    padding-left: 0;\n  }\n}\n\n// Form control sizing\n//\n// Build on `.form-control` with modifier classes to decrease or increase the\n// height and font-size of form controls.\n//\n// Repeated in `_input_group.scss` to avoid Sass extend issues.\n\n.form-control-sm {\n  min-height: $input-height-sm;\n  padding: $input-padding-y-sm $input-padding-x-sm;\n  @include font-size($input-font-size-sm);\n  @include border-radius($input-border-radius-sm);\n\n  &::file-selector-button {\n    padding: $input-padding-y-sm $input-padding-x-sm;\n    margin: (-$input-padding-y-sm) (-$input-padding-x-sm);\n    margin-inline-end: $input-padding-x-sm;\n  }\n\n  &::-webkit-file-upload-button {\n    padding: $input-padding-y-sm $input-padding-x-sm;\n    margin: (-$input-padding-y-sm) (-$input-padding-x-sm);\n    margin-inline-end: $input-padding-x-sm;\n  }\n}\n\n.form-control-lg {\n  min-height: $input-height-lg;\n  padding: $input-padding-y-lg $input-padding-x-lg;\n  @include font-size($input-font-size-lg);\n  @include border-radius($input-border-radius-lg);\n\n  &::file-selector-button {\n    padding: $input-padding-y-lg $input-padding-x-lg;\n    margin: (-$input-padding-y-lg) (-$input-padding-x-lg);\n    margin-inline-end: $input-padding-x-lg;\n  }\n\n  &::-webkit-file-upload-button {\n    padding: $input-padding-y-lg $input-padding-x-lg;\n    margin: (-$input-padding-y-lg) (-$input-padding-x-lg);\n    margin-inline-end: $input-padding-x-lg;\n  }\n}\n\n// Make sure textareas don't shrink too much when resized\n// https://github.com/twbs/bootstrap/pull/29124\n// stylelint-disable selector-no-qualifying-type\ntextarea {\n  &.form-control {\n    min-height: $input-height;\n  }\n\n  &.form-control-sm {\n    min-height: $input-height-sm;\n  }\n\n  &.form-control-lg {\n    min-height: $input-height-lg;\n  }\n}\n// stylelint-enable selector-no-qualifying-type\n\n.form-control-color {\n  width: $form-color-width;\n  height: auto; // Override fixed browser height\n  padding: $input-padding-y;\n\n  &:not(:disabled):not([readonly]) {\n    cursor: pointer;\n  }\n\n  &::-moz-color-swatch {\n    height: if(unit($input-line-height) == \"\", $input-line-height * 1em, $input-line-height);\n    @include border-radius($input-border-radius);\n  }\n\n  &::-webkit-color-swatch {\n    height: if(unit($input-line-height) == \"\", $input-line-height * 1em, $input-line-height);\n    @include border-radius($input-border-radius);\n  }\n}\n","// stylelint-disable property-disallowed-list\n@mixin transition($transition...) {\n  @if length($transition) == 0 {\n    $transition: $transition-base;\n  }\n\n  @if length($transition) > 1 {\n    @each $value in $transition {\n      @if $value == null or $value == none {\n        @warn \"The keyword 'none' or 'null' must be used as a single argument.\";\n      }\n    }\n  }\n\n  @if $enable-transitions {\n    @if nth($transition, 1) != null {\n      transition: $transition;\n    }\n\n    @if $enable-reduced-motion and nth($transition, 1) != null and nth($transition, 1) != none {\n      @media (prefers-reduced-motion: reduce) {\n        transition: none;\n      }\n    }\n  }\n}\n","// Gradients\n\n// scss-docs-start gradient-bg-mixin\n@mixin gradient-bg($color: null) {\n  background-color: $color;\n\n  @if $enable-gradients {\n    background-image: var(--#{$variable-prefix}gradient);\n  }\n}\n// scss-docs-end gradient-bg-mixin\n\n// scss-docs-start gradient-mixins\n// Horizontal gradient, from left to right\n//\n// Creates two color stops, start and end, by specifying a color and position for each color stop.\n@mixin gradient-x($start-color: $gray-700, $end-color: $gray-800, $start-percent: 0%, $end-percent: 100%) {\n  background-image: linear-gradient(to right, $start-color $start-percent, $end-color $end-percent);\n}\n\n// Vertical gradient, from top to bottom\n//\n// Creates two color stops, start and end, by specifying a color and position for each color stop.\n@mixin gradient-y($start-color: $gray-700, $end-color: $gray-800, $start-percent: null, $end-percent: null) {\n  background-image: linear-gradient(to bottom, $start-color $start-percent, $end-color $end-percent);\n}\n\n@mixin gradient-directional($start-color: $gray-700, $end-color: $gray-800, $deg: 45deg) {\n  background-image: linear-gradient($deg, $start-color, $end-color);\n}\n\n@mixin gradient-x-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {\n  background-image: linear-gradient(to right, $start-color, $mid-color $color-stop, $end-color);\n}\n\n@mixin gradient-y-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {\n  background-image: linear-gradient($start-color, $mid-color $color-stop, $end-color);\n}\n\n@mixin gradient-radial($inner-color: $gray-700, $outer-color: $gray-800) {\n  background-image: radial-gradient(circle, $inner-color, $outer-color);\n}\n\n@mixin gradient-striped($color: rgba($white, .15), $angle: 45deg) {\n  background-image: linear-gradient($angle, $color 25%, transparent 25%, transparent 50%, $color 50%, $color 75%, transparent 75%, transparent);\n}\n// scss-docs-end gradient-mixins\n","// Select\n//\n// Replaces the browser default select with a custom one, mostly pulled from\n// https://primer.github.io/.\n\n.form-select {\n  display: block;\n  width: 100%;\n  padding: $form-select-padding-y $form-select-indicator-padding $form-select-padding-y $form-select-padding-x;\n  // stylelint-disable-next-line property-no-vendor-prefix\n  -moz-padding-start: subtract($form-select-padding-x, 3px); // See https://github.com/twbs/bootstrap/issues/32636\n  font-family: $form-select-font-family;\n  @include font-size($form-select-font-size);\n  font-weight: $form-select-font-weight;\n  line-height: $form-select-line-height;\n  color: $form-select-color;\n  background-color: $form-select-bg;\n  background-image: escape-svg($form-select-indicator);\n  background-repeat: no-repeat;\n  background-position: $form-select-bg-position;\n  background-size: $form-select-bg-size;\n  border: $form-select-border-width solid $form-select-border-color;\n  @include border-radius($form-select-border-radius, 0);\n  @include box-shadow($form-select-box-shadow);\n  @include transition($form-select-transition);\n  appearance: none;\n\n  &:focus {\n    border-color: $form-select-focus-border-color;\n    outline: 0;\n    @if $enable-shadows {\n      @include box-shadow($form-select-box-shadow, $form-select-focus-box-shadow);\n    } @else {\n      // Avoid using mixin so we can pass custom focus shadow properly\n      box-shadow: $form-select-focus-box-shadow;\n    }\n  }\n\n  &[multiple],\n  &[size]:not([size=\"1\"]) {\n    padding-right: $form-select-padding-x;\n    background-image: none;\n  }\n\n  &:disabled {\n    color: $form-select-disabled-color;\n    background-color: $form-select-disabled-bg;\n    border-color: $form-select-disabled-border-color;\n  }\n\n  // Remove outline from select box in FF\n  &:-moz-focusring {\n    color: transparent;\n    text-shadow: 0 0 0 $form-select-color;\n  }\n}\n\n.form-select-sm {\n  padding-top: $form-select-padding-y-sm;\n  padding-bottom: $form-select-padding-y-sm;\n  padding-left: $form-select-padding-x-sm;\n  @include font-size($form-select-font-size-sm);\n}\n\n.form-select-lg {\n  padding-top: $form-select-padding-y-lg;\n  padding-bottom: $form-select-padding-y-lg;\n  padding-left: $form-select-padding-x-lg;\n  @include font-size($form-select-font-size-lg);\n}\n","//\n// Check/radio\n//\n\n.form-check {\n  display: block;\n  min-height: $form-check-min-height;\n  padding-left: $form-check-padding-start;\n  margin-bottom: $form-check-margin-bottom;\n\n  .form-check-input {\n    float: left;\n    margin-left: $form-check-padding-start * -1;\n  }\n}\n\n.form-check-input {\n  width: $form-check-input-width;\n  height: $form-check-input-width;\n  margin-top: ($line-height-base - $form-check-input-width) * .5; // line-height minus check height\n  vertical-align: top;\n  background-color: $form-check-input-bg;\n  background-repeat: no-repeat;\n  background-position: center;\n  background-size: contain;\n  border: $form-check-input-border;\n  appearance: none;\n  color-adjust: exact; // Keep themed appearance for print\n  @include transition($form-check-transition);\n\n  &[type=\"checkbox\"] {\n    @include border-radius($form-check-input-border-radius);\n  }\n\n  &[type=\"radio\"] {\n    // stylelint-disable-next-line property-disallowed-list\n    border-radius: $form-check-radio-border-radius;\n  }\n\n  &:active {\n    filter: $form-check-input-active-filter;\n  }\n\n  &:focus {\n    border-color: $form-check-input-focus-border;\n    outline: 0;\n    box-shadow: $form-check-input-focus-box-shadow;\n  }\n\n  &:checked {\n    background-color: $form-check-input-checked-bg-color;\n    border-color: $form-check-input-checked-border-color;\n\n    &[type=\"checkbox\"] {\n      @if $enable-gradients {\n        background-image: escape-svg($form-check-input-checked-bg-image), var(--#{$variable-prefix}gradient);\n      } @else {\n        background-image: escape-svg($form-check-input-checked-bg-image);\n      }\n    }\n\n    &[type=\"radio\"] {\n      @if $enable-gradients {\n        background-image: escape-svg($form-check-radio-checked-bg-image), var(--#{$variable-prefix}gradient);\n      } @else {\n        background-image: escape-svg($form-check-radio-checked-bg-image);\n      }\n    }\n  }\n\n  &[type=\"checkbox\"]:indeterminate {\n    background-color: $form-check-input-indeterminate-bg-color;\n    border-color: $form-check-input-indeterminate-border-color;\n\n    @if $enable-gradients {\n      background-image: escape-svg($form-check-input-indeterminate-bg-image), var(--#{$variable-prefix}gradient);\n    } @else {\n      background-image: escape-svg($form-check-input-indeterminate-bg-image);\n    }\n  }\n\n  &:disabled {\n    pointer-events: none;\n    filter: none;\n    opacity: $form-check-input-disabled-opacity;\n  }\n\n  // Use disabled attribute in addition of :disabled pseudo-class\n  // See: https://github.com/twbs/bootstrap/issues/28247\n  &[disabled],\n  &:disabled {\n    ~ .form-check-label {\n      opacity: $form-check-label-disabled-opacity;\n    }\n  }\n}\n\n.form-check-label {\n  color: $form-check-label-color;\n  cursor: $form-check-label-cursor;\n}\n\n//\n// Switch\n//\n\n.form-switch {\n  padding-left: $form-switch-padding-start;\n\n  .form-check-input {\n    width: $form-switch-width;\n    margin-left: $form-switch-padding-start * -1;\n    background-image: escape-svg($form-switch-bg-image);\n    background-position: left center;\n    @include border-radius($form-switch-border-radius);\n    @include transition($form-switch-transition);\n\n    &:focus {\n      background-image: escape-svg($form-switch-focus-bg-image);\n    }\n\n    &:checked {\n      background-position: $form-switch-checked-bg-position;\n\n      @if $enable-gradients {\n        background-image: escape-svg($form-switch-checked-bg-image), var(--#{$variable-prefix}gradient);\n      } @else {\n        background-image: escape-svg($form-switch-checked-bg-image);\n      }\n    }\n  }\n}\n\n.form-check-inline {\n  display: inline-block;\n  margin-right: $form-check-inline-margin-end;\n}\n\n.btn-check {\n  position: absolute;\n  clip: rect(0, 0, 0, 0);\n  pointer-events: none;\n\n  &[disabled],\n  &:disabled {\n    + .btn {\n      pointer-events: none;\n      filter: none;\n      opacity: $form-check-btn-check-disabled-opacity;\n    }\n  }\n}\n","// Range\n//\n// Style range inputs the same across browsers. Vendor-specific rules for pseudo\n// elements cannot be mixed. As such, there are no shared styles for focus or\n// active states on prefixed selectors.\n\n.form-range {\n  width: 100%;\n  height: add($form-range-thumb-height, $form-range-thumb-focus-box-shadow-width * 2);\n  padding: 0; // Need to reset padding\n  background-color: transparent;\n  appearance: none;\n\n  &:focus {\n    outline: 0;\n\n    // Pseudo-elements must be split across multiple rulesets to have an effect.\n    // No box-shadow() mixin for focus accessibility.\n    &::-webkit-slider-thumb { box-shadow: $form-range-thumb-focus-box-shadow; }\n    &::-moz-range-thumb     { box-shadow: $form-range-thumb-focus-box-shadow; }\n  }\n\n  &::-moz-focus-outer {\n    border: 0;\n  }\n\n  &::-webkit-slider-thumb {\n    width: $form-range-thumb-width;\n    height: $form-range-thumb-height;\n    margin-top: ($form-range-track-height - $form-range-thumb-height) * .5; // Webkit specific\n    @include gradient-bg($form-range-thumb-bg);\n    border: $form-range-thumb-border;\n    @include border-radius($form-range-thumb-border-radius);\n    @include box-shadow($form-range-thumb-box-shadow);\n    @include transition($form-range-thumb-transition);\n    appearance: none;\n\n    &:active {\n      @include gradient-bg($form-range-thumb-active-bg);\n    }\n  }\n\n  &::-webkit-slider-runnable-track {\n    width: $form-range-track-width;\n    height: $form-range-track-height;\n    color: transparent; // Why?\n    cursor: $form-range-track-cursor;\n    background-color: $form-range-track-bg;\n    border-color: transparent;\n    @include border-radius($form-range-track-border-radius);\n    @include box-shadow($form-range-track-box-shadow);\n  }\n\n  &::-moz-range-thumb {\n    width: $form-range-thumb-width;\n    height: $form-range-thumb-height;\n    @include gradient-bg($form-range-thumb-bg);\n    border: $form-range-thumb-border;\n    @include border-radius($form-range-thumb-border-radius);\n    @include box-shadow($form-range-thumb-box-shadow);\n    @include transition($form-range-thumb-transition);\n    appearance: none;\n\n    &:active {\n      @include gradient-bg($form-range-thumb-active-bg);\n    }\n  }\n\n  &::-moz-range-track {\n    width: $form-range-track-width;\n    height: $form-range-track-height;\n    color: transparent;\n    cursor: $form-range-track-cursor;\n    background-color: $form-range-track-bg;\n    border-color: transparent; // Firefox specific?\n    @include border-radius($form-range-track-border-radius);\n    @include box-shadow($form-range-track-box-shadow);\n  }\n\n  &:disabled {\n    pointer-events: none;\n\n    &::-webkit-slider-thumb {\n      background-color: $form-range-thumb-disabled-bg;\n    }\n\n    &::-moz-range-thumb {\n      background-color: $form-range-thumb-disabled-bg;\n    }\n  }\n}\n",".form-floating {\n  position: relative;\n\n  > .form-control,\n  > .form-select {\n    height: $form-floating-height;\n    line-height: $form-floating-line-height;\n  }\n\n  > label {\n    position: absolute;\n    top: 0;\n    left: 0;\n    height: 100%; // allow textareas\n    padding: $form-floating-padding-y $form-floating-padding-x;\n    pointer-events: none;\n    border: $input-border-width solid transparent; // Required for aligning label's text with the input as it affects inner box model\n    transform-origin: 0 0;\n    @include transition($form-floating-transition);\n  }\n\n  // stylelint-disable no-duplicate-selectors\n  > .form-control {\n    padding: $form-floating-padding-y $form-floating-padding-x;\n\n    &::placeholder {\n      color: transparent;\n    }\n\n    &:focus,\n    &:not(:placeholder-shown) {\n      padding-top: $form-floating-input-padding-t;\n      padding-bottom: $form-floating-input-padding-b;\n    }\n    // Duplicated because `:-webkit-autofill` invalidates other selectors when grouped\n    &:-webkit-autofill {\n      padding-top: $form-floating-input-padding-t;\n      padding-bottom: $form-floating-input-padding-b;\n    }\n  }\n\n  > .form-select {\n    padding-top: $form-floating-input-padding-t;\n    padding-bottom: $form-floating-input-padding-b;\n  }\n\n  > .form-control:focus,\n  > .form-control:not(:placeholder-shown),\n  > .form-select {\n    ~ label {\n      opacity: $form-floating-label-opacity;\n      transform: $form-floating-label-transform;\n    }\n  }\n  // Duplicated because `:-webkit-autofill` invalidates other selectors when grouped\n  > .form-control:-webkit-autofill {\n    ~ label {\n      opacity: $form-floating-label-opacity;\n      transform: $form-floating-label-transform;\n    }\n  }\n  // stylelint-enable no-duplicate-selectors\n}\n","//\n// Base styles\n//\n\n.input-group {\n  position: relative;\n  display: flex;\n  flex-wrap: wrap; // For form validation feedback\n  align-items: stretch;\n  width: 100%;\n\n  > .form-control,\n  > .form-select {\n    position: relative; // For focus state's z-index\n    flex: 1 1 auto;\n    width: 1%;\n    min-width: 0; // https://stackoverflow.com/questions/36247140/why-dont-flex-items-shrink-past-content-size\n  }\n\n  // Bring the \"active\" form control to the top of surrounding elements\n  > .form-control:focus,\n  > .form-select:focus {\n    z-index: 3;\n  }\n\n  // Ensure buttons are always above inputs for more visually pleasing borders.\n  // This isn't needed for `.input-group-text` since it shares the same border-color\n  // as our inputs.\n  .btn {\n    position: relative;\n    z-index: 2;\n\n    &:focus {\n      z-index: 3;\n    }\n  }\n}\n\n\n// Textual addons\n//\n// Serves as a catch-all element for any text or radio/checkbox input you wish\n// to prepend or append to an input.\n\n.input-group-text {\n  display: flex;\n  align-items: center;\n  padding: $input-group-addon-padding-y $input-group-addon-padding-x;\n  @include font-size($input-font-size); // Match inputs\n  font-weight: $input-group-addon-font-weight;\n  line-height: $input-line-height;\n  color: $input-group-addon-color;\n  text-align: center;\n  white-space: nowrap;\n  background-color: $input-group-addon-bg;\n  border: $input-border-width solid $input-group-addon-border-color;\n  @include border-radius($input-border-radius);\n}\n\n\n// Sizing\n//\n// Remix the default form control sizing classes into new ones for easier\n// manipulation.\n\n.input-group-lg > .form-control,\n.input-group-lg > .form-select,\n.input-group-lg > .input-group-text,\n.input-group-lg > .btn {\n  padding: $input-padding-y-lg $input-padding-x-lg;\n  @include font-size($input-font-size-lg);\n  @include border-radius($input-border-radius-lg);\n}\n\n.input-group-sm > .form-control,\n.input-group-sm > .form-select,\n.input-group-sm > .input-group-text,\n.input-group-sm > .btn {\n  padding: $input-padding-y-sm $input-padding-x-sm;\n  @include font-size($input-font-size-sm);\n  @include border-radius($input-border-radius-sm);\n}\n\n.input-group-lg > .form-select,\n.input-group-sm > .form-select {\n  padding-right: $form-select-padding-x + $form-select-indicator-padding;\n}\n\n\n// Rounded corners\n//\n// These rulesets must come after the sizing ones to properly override sm and lg\n// border-radius values when extending. They're more specific than we'd like\n// with the `.input-group >` part, but without it, we cannot override the sizing.\n\n// stylelint-disable-next-line no-duplicate-selectors\n.input-group {\n  &:not(.has-validation) {\n    > :not(:last-child):not(.dropdown-toggle):not(.dropdown-menu),\n    > .dropdown-toggle:nth-last-child(n + 3) {\n      @include border-end-radius(0);\n    }\n  }\n\n  &.has-validation {\n    > :nth-last-child(n + 3):not(.dropdown-toggle):not(.dropdown-menu),\n    > .dropdown-toggle:nth-last-child(n + 4) {\n      @include border-end-radius(0);\n    }\n  }\n\n  $validation-messages: \"\";\n  @each $state in map-keys($form-validation-states) {\n    $validation-messages: $validation-messages + \":not(.\" + unquote($state) + \"-tooltip)\" + \":not(.\" + unquote($state) + \"-feedback)\";\n  }\n\n  > :not(:first-child):not(.dropdown-menu)#{$validation-messages} {\n    margin-left: -$input-border-width;\n    @include border-start-radius(0);\n  }\n}\n","// This mixin uses an `if()` technique to be compatible with Dart Sass\n// See https://github.com/sass/sass/issues/1873#issuecomment-152293725 for more details\n\n// scss-docs-start form-validation-mixins\n@mixin form-validation-state-selector($state) {\n  @if ($state == \"valid\" or $state == \"invalid\") {\n    .was-validated #{if(&, \"&\", \"\")}:#{$state},\n    #{if(&, \"&\", \"\")}.is-#{$state} {\n      @content;\n    }\n  } @else {\n    #{if(&, \"&\", \"\")}.is-#{$state} {\n      @content;\n    }\n  }\n}\n\n@mixin form-validation-state(\n  $state,\n  $color,\n  $icon,\n  $tooltip-color: color-contrast($color),\n  $tooltip-bg-color: rgba($color, $form-feedback-tooltip-opacity),\n  $focus-box-shadow: 0 0 $input-btn-focus-blur $input-focus-width rgba($color, $input-btn-focus-color-opacity)\n) {\n  .#{$state}-feedback {\n    display: none;\n    width: 100%;\n    margin-top: $form-feedback-margin-top;\n    @include font-size($form-feedback-font-size);\n    font-style: $form-feedback-font-style;\n    color: $color;\n  }\n\n  .#{$state}-tooltip {\n    position: absolute;\n    top: 100%;\n    z-index: 5;\n    display: none;\n    max-width: 100%; // Contain to parent when possible\n    padding: $form-feedback-tooltip-padding-y $form-feedback-tooltip-padding-x;\n    margin-top: .1rem;\n    @include font-size($form-feedback-tooltip-font-size);\n    line-height: $form-feedback-tooltip-line-height;\n    color: $tooltip-color;\n    background-color: $tooltip-bg-color;\n    @include border-radius($form-feedback-tooltip-border-radius);\n  }\n\n  @include form-validation-state-selector($state) {\n    ~ .#{$state}-feedback,\n    ~ .#{$state}-tooltip {\n      display: block;\n    }\n  }\n\n  .form-control {\n    @include form-validation-state-selector($state) {\n      border-color: $color;\n\n      @if $enable-validation-icons {\n        padding-right: $input-height-inner;\n        background-image: escape-svg($icon);\n        background-repeat: no-repeat;\n        background-position: right $input-height-inner-quarter center;\n        background-size: $input-height-inner-half $input-height-inner-half;\n      }\n\n      &:focus {\n        border-color: $color;\n        box-shadow: $focus-box-shadow;\n      }\n    }\n  }\n\n  // stylelint-disable-next-line selector-no-qualifying-type\n  textarea.form-control {\n    @include form-validation-state-selector($state) {\n      @if $enable-validation-icons {\n        padding-right: $input-height-inner;\n        background-position: top $input-height-inner-quarter right $input-height-inner-quarter;\n      }\n    }\n  }\n\n  .form-select {\n    @include form-validation-state-selector($state) {\n      border-color: $color;\n\n      @if $enable-validation-icons {\n        &:not([multiple]):not([size]),\n        &:not([multiple])[size=\"1\"] {\n          padding-right: $form-select-feedback-icon-padding-end;\n          background-image: escape-svg($form-select-indicator), escape-svg($icon);\n          background-position: $form-select-bg-position, $form-select-feedback-icon-position;\n          background-size: $form-select-bg-size, $form-select-feedback-icon-size;\n        }\n      }\n\n      &:focus {\n        border-color: $color;\n        box-shadow: $focus-box-shadow;\n      }\n    }\n  }\n\n  .form-check-input {\n    @include form-validation-state-selector($state) {\n      border-color: $color;\n\n      &:checked {\n        background-color: $color;\n      }\n\n      &:focus {\n        box-shadow: $focus-box-shadow;\n      }\n\n      ~ .form-check-label {\n        color: $color;\n      }\n    }\n  }\n  .form-check-inline .form-check-input {\n    ~ .#{$state}-feedback {\n      margin-left: .5em;\n    }\n  }\n\n  .input-group .form-control,\n  .input-group .form-select {\n    @include form-validation-state-selector($state) {\n      @if $state == \"valid\" {\n        z-index: 1;\n      } @else if $state == \"invalid\" {\n        z-index: 2;\n      }\n      &:focus {\n        z-index: 3;\n      }\n    }\n  }\n}\n// scss-docs-end form-validation-mixins\n","//\n// Base styles\n//\n\n.btn {\n  display: inline-block;\n  font-family: $btn-font-family;\n  font-weight: $btn-font-weight;\n  line-height: $btn-line-height;\n  color: $body-color;\n  text-align: center;\n  text-decoration: if($link-decoration == none, null, none);\n  white-space: $btn-white-space;\n  vertical-align: middle;\n  cursor: if($enable-button-pointers, pointer, null);\n  user-select: none;\n  background-color: transparent;\n  border: $btn-border-width solid transparent;\n  @include button-size($btn-padding-y, $btn-padding-x, $btn-font-size, $btn-border-radius);\n  @include transition($btn-transition);\n\n  &:hover {\n    color: $body-color;\n    text-decoration: if($link-hover-decoration == underline, none, null);\n  }\n\n  .btn-check:focus + &,\n  &:focus {\n    outline: 0;\n    box-shadow: $btn-focus-box-shadow;\n  }\n\n  .btn-check:checked + &,\n  .btn-check:active + &,\n  &:active,\n  &.active {\n    @include box-shadow($btn-active-box-shadow);\n\n    &:focus {\n      @include box-shadow($btn-focus-box-shadow, $btn-active-box-shadow);\n    }\n  }\n\n  &:disabled,\n  &.disabled,\n  fieldset:disabled & {\n    pointer-events: none;\n    opacity: $btn-disabled-opacity;\n    @include box-shadow(none);\n  }\n}\n\n\n//\n// Alternate buttons\n//\n\n// scss-docs-start btn-variant-loops\n@each $color, $value in $theme-colors {\n  .btn-#{$color} {\n    @include button-variant($value, $value);\n  }\n}\n\n@each $color, $value in $theme-colors {\n  .btn-outline-#{$color} {\n    @include button-outline-variant($value);\n  }\n}\n// scss-docs-end btn-variant-loops\n\n\n//\n// Link buttons\n//\n\n// Make a button look and behave like a link\n.btn-link {\n  font-weight: $font-weight-normal;\n  color: $btn-link-color;\n  text-decoration: $link-decoration;\n\n  &:hover {\n    color: $btn-link-hover-color;\n    text-decoration: $link-hover-decoration;\n  }\n\n  &:focus {\n    text-decoration: $link-hover-decoration;\n  }\n\n  &:disabled,\n  &.disabled {\n    color: $btn-link-disabled-color;\n  }\n\n  // No need for an active state here\n}\n\n\n//\n// Button Sizes\n//\n\n.btn-lg {\n  @include button-size($btn-padding-y-lg, $btn-padding-x-lg, $btn-font-size-lg, $btn-border-radius-lg);\n}\n\n.btn-sm {\n  @include button-size($btn-padding-y-sm, $btn-padding-x-sm, $btn-font-size-sm, $btn-border-radius-sm);\n}\n","// Button variants\n//\n// Easily pump out default styles, as well as :hover, :focus, :active,\n// and disabled options for all buttons\n\n// scss-docs-start btn-variant-mixin\n@mixin button-variant(\n  $background,\n  $border,\n  $color: color-contrast($background),\n  $hover-background: if($color == $color-contrast-light, shade-color($background, $btn-hover-bg-shade-amount), tint-color($background, $btn-hover-bg-tint-amount)),\n  $hover-border: if($color == $color-contrast-light, shade-color($border, $btn-hover-border-shade-amount), tint-color($border, $btn-hover-border-tint-amount)),\n  $hover-color: color-contrast($hover-background),\n  $active-background: if($color == $color-contrast-light, shade-color($background, $btn-active-bg-shade-amount), tint-color($background, $btn-active-bg-tint-amount)),\n  $active-border: if($color == $color-contrast-light, shade-color($border, $btn-active-border-shade-amount), tint-color($border, $btn-active-border-tint-amount)),\n  $active-color: color-contrast($active-background),\n  $disabled-background: $background,\n  $disabled-border: $border,\n  $disabled-color: color-contrast($disabled-background)\n) {\n  color: $color;\n  @include gradient-bg($background);\n  border-color: $border;\n  @include box-shadow($btn-box-shadow);\n\n  &:hover {\n    color: $hover-color;\n    @include gradient-bg($hover-background);\n    border-color: $hover-border;\n  }\n\n  .btn-check:focus + &,\n  &:focus {\n    color: $hover-color;\n    @include gradient-bg($hover-background);\n    border-color: $hover-border;\n    @if $enable-shadows {\n      @include box-shadow($btn-box-shadow, 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5));\n    } @else {\n      // Avoid using mixin so we can pass custom focus shadow properly\n      box-shadow: 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5);\n    }\n  }\n\n  .btn-check:checked + &,\n  .btn-check:active + &,\n  &:active,\n  &.active,\n  .show > &.dropdown-toggle {\n    color: $active-color;\n    background-color: $active-background;\n    // Remove CSS gradients if they're enabled\n    background-image: if($enable-gradients, none, null);\n    border-color: $active-border;\n\n    &:focus {\n      @if $enable-shadows {\n        @include box-shadow($btn-active-box-shadow, 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5));\n      } @else {\n        // Avoid using mixin so we can pass custom focus shadow properly\n        box-shadow: 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5);\n      }\n    }\n  }\n\n  &:disabled,\n  &.disabled {\n    color: $disabled-color;\n    background-color: $disabled-background;\n    // Remove CSS gradients if they're enabled\n    background-image: if($enable-gradients, none, null);\n    border-color: $disabled-border;\n  }\n}\n// scss-docs-end btn-variant-mixin\n\n// scss-docs-start btn-outline-variant-mixin\n@mixin button-outline-variant(\n  $color,\n  $color-hover: color-contrast($color),\n  $active-background: $color,\n  $active-border: $color,\n  $active-color: color-contrast($active-background)\n) {\n  color: $color;\n  border-color: $color;\n\n  &:hover {\n    color: $color-hover;\n    background-color: $active-background;\n    border-color: $active-border;\n  }\n\n  .btn-check:focus + &,\n  &:focus {\n    box-shadow: 0 0 0 $btn-focus-width rgba($color, .5);\n  }\n\n  .btn-check:checked + &,\n  .btn-check:active + &,\n  &:active,\n  &.active,\n  &.dropdown-toggle.show {\n    color: $active-color;\n    background-color: $active-background;\n    border-color: $active-border;\n\n    &:focus {\n      @if $enable-shadows {\n        @include box-shadow($btn-active-box-shadow, 0 0 0 $btn-focus-width rgba($color, .5));\n      } @else {\n        // Avoid using mixin so we can pass custom focus shadow properly\n        box-shadow: 0 0 0 $btn-focus-width rgba($color, .5);\n      }\n    }\n  }\n\n  &:disabled,\n  &.disabled {\n    color: $color;\n    background-color: transparent;\n  }\n}\n// scss-docs-end btn-outline-variant-mixin\n\n// scss-docs-start btn-size-mixin\n@mixin button-size($padding-y, $padding-x, $font-size, $border-radius) {\n  padding: $padding-y $padding-x;\n  @include font-size($font-size);\n  // Manually declare to provide an override to the browser default\n  @include border-radius($border-radius, 0);\n}\n// scss-docs-end btn-size-mixin\n",".fade {\n  @include transition($transition-fade);\n\n  &:not(.show) {\n    opacity: 0;\n  }\n}\n\n// scss-docs-start collapse-classes\n.collapse {\n  &:not(.show) {\n    display: none;\n  }\n}\n\n.collapsing {\n  height: 0;\n  overflow: hidden;\n  @include transition($transition-collapse);\n\n  &.collapse-horizontal {\n    width: 0;\n    height: auto;\n    @include transition($transition-collapse-width);\n  }\n}\n// scss-docs-end collapse-classes\n","// The dropdown wrapper (`<div>`)\n.dropup,\n.dropend,\n.dropdown,\n.dropstart {\n  position: relative;\n}\n\n.dropdown-toggle {\n  white-space: nowrap;\n\n  // Generate the caret automatically\n  @include caret();\n}\n\n// The dropdown menu\n.dropdown-menu {\n  position: absolute;\n  z-index: $zindex-dropdown;\n  display: none; // none by default, but block on \"open\" of the menu\n  min-width: $dropdown-min-width;\n  padding: $dropdown-padding-y $dropdown-padding-x;\n  margin: 0; // Override default margin of ul\n  @include font-size($dropdown-font-size);\n  color: $dropdown-color;\n  text-align: left; // Ensures proper alignment if parent has it changed (e.g., modal footer)\n  list-style: none;\n  background-color: $dropdown-bg;\n  background-clip: padding-box;\n  border: $dropdown-border-width solid $dropdown-border-color;\n  @include border-radius($dropdown-border-radius);\n  @include box-shadow($dropdown-box-shadow);\n\n  &[data-bs-popper] {\n    top: 100%;\n    left: 0;\n    margin-top: $dropdown-spacer;\n  }\n}\n\n// scss-docs-start responsive-breakpoints\n// We deliberately hardcode the `bs-` prefix because we check\n// this custom property in JS to determine Popper's positioning\n\n@each $breakpoint in map-keys($grid-breakpoints) {\n  @include media-breakpoint-up($breakpoint) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    .dropdown-menu#{$infix}-start {\n      --bs-position: start;\n\n      &[data-bs-popper] {\n        right: auto;\n        left: 0;\n      }\n    }\n\n    .dropdown-menu#{$infix}-end {\n      --bs-position: end;\n\n      &[data-bs-popper] {\n        right: 0;\n        left: auto;\n      }\n    }\n  }\n}\n// scss-docs-end responsive-breakpoints\n\n// Allow for dropdowns to go bottom up (aka, dropup-menu)\n// Just add .dropup after the standard .dropdown class and you're set.\n.dropup {\n  .dropdown-menu[data-bs-popper] {\n    top: auto;\n    bottom: 100%;\n    margin-top: 0;\n    margin-bottom: $dropdown-spacer;\n  }\n\n  .dropdown-toggle {\n    @include caret(up);\n  }\n}\n\n.dropend {\n  .dropdown-menu[data-bs-popper] {\n    top: 0;\n    right: auto;\n    left: 100%;\n    margin-top: 0;\n    margin-left: $dropdown-spacer;\n  }\n\n  .dropdown-toggle {\n    @include caret(end);\n    &::after {\n      vertical-align: 0;\n    }\n  }\n}\n\n.dropstart {\n  .dropdown-menu[data-bs-popper] {\n    top: 0;\n    right: 100%;\n    left: auto;\n    margin-top: 0;\n    margin-right: $dropdown-spacer;\n  }\n\n  .dropdown-toggle {\n    @include caret(start);\n    &::before {\n      vertical-align: 0;\n    }\n  }\n}\n\n\n// Dividers (basically an `<hr>`) within the dropdown\n.dropdown-divider {\n  height: 0;\n  margin: $dropdown-divider-margin-y 0;\n  overflow: hidden;\n  border-top: 1px solid $dropdown-divider-bg;\n}\n\n// Links, buttons, and more within the dropdown menu\n//\n// `<button>`-specific styles are denoted with `// For <button>s`\n.dropdown-item {\n  display: block;\n  width: 100%; // For `<button>`s\n  padding: $dropdown-item-padding-y $dropdown-item-padding-x;\n  clear: both;\n  font-weight: $font-weight-normal;\n  color: $dropdown-link-color;\n  text-align: inherit; // For `<button>`s\n  text-decoration: if($link-decoration == none, null, none);\n  white-space: nowrap; // prevent links from randomly breaking onto new lines\n  background-color: transparent; // For `<button>`s\n  border: 0; // For `<button>`s\n\n  // Prevent dropdown overflow if there's no padding\n  // See https://github.com/twbs/bootstrap/pull/27703\n  @if $dropdown-padding-y == 0 {\n    &:first-child {\n      @include border-top-radius($dropdown-inner-border-radius);\n    }\n\n    &:last-child {\n      @include border-bottom-radius($dropdown-inner-border-radius);\n    }\n  }\n\n  &:hover,\n  &:focus {\n    color: $dropdown-link-hover-color;\n    text-decoration: if($link-hover-decoration == underline, none, null);\n    @include gradient-bg($dropdown-link-hover-bg);\n  }\n\n  &.active,\n  &:active {\n    color: $dropdown-link-active-color;\n    text-decoration: none;\n    @include gradient-bg($dropdown-link-active-bg);\n  }\n\n  &.disabled,\n  &:disabled {\n    color: $dropdown-link-disabled-color;\n    pointer-events: none;\n    background-color: transparent;\n    // Remove CSS gradients if they're enabled\n    background-image: if($enable-gradients, none, null);\n  }\n}\n\n.dropdown-menu.show {\n  display: block;\n}\n\n// Dropdown section headers\n.dropdown-header {\n  display: block;\n  padding: $dropdown-header-padding;\n  margin-bottom: 0; // for use with heading elements\n  @include font-size($font-size-sm);\n  color: $dropdown-header-color;\n  white-space: nowrap; // as with > li > a\n}\n\n// Dropdown text\n.dropdown-item-text {\n  display: block;\n  padding: $dropdown-item-padding-y $dropdown-item-padding-x;\n  color: $dropdown-link-color;\n}\n\n// Dark dropdowns\n.dropdown-menu-dark {\n  color: $dropdown-dark-color;\n  background-color: $dropdown-dark-bg;\n  border-color: $dropdown-dark-border-color;\n  @include box-shadow($dropdown-dark-box-shadow);\n\n  .dropdown-item {\n    color: $dropdown-dark-link-color;\n\n    &:hover,\n    &:focus {\n      color: $dropdown-dark-link-hover-color;\n      @include gradient-bg($dropdown-dark-link-hover-bg);\n    }\n\n    &.active,\n    &:active {\n      color: $dropdown-dark-link-active-color;\n      @include gradient-bg($dropdown-dark-link-active-bg);\n    }\n\n    &.disabled,\n    &:disabled {\n      color: $dropdown-dark-link-disabled-color;\n    }\n  }\n\n  .dropdown-divider {\n    border-color: $dropdown-dark-divider-bg;\n  }\n\n  .dropdown-item-text {\n    color: $dropdown-dark-link-color;\n  }\n\n  .dropdown-header {\n    color: $dropdown-dark-header-color;\n  }\n}\n","// scss-docs-start caret-mixins\n@mixin caret-down {\n  border-top: $caret-width solid;\n  border-right: $caret-width solid transparent;\n  border-bottom: 0;\n  border-left: $caret-width solid transparent;\n}\n\n@mixin caret-up {\n  border-top: 0;\n  border-right: $caret-width solid transparent;\n  border-bottom: $caret-width solid;\n  border-left: $caret-width solid transparent;\n}\n\n@mixin caret-end {\n  border-top: $caret-width solid transparent;\n  border-right: 0;\n  border-bottom: $caret-width solid transparent;\n  border-left: $caret-width solid;\n}\n\n@mixin caret-start {\n  border-top: $caret-width solid transparent;\n  border-right: $caret-width solid;\n  border-bottom: $caret-width solid transparent;\n}\n\n@mixin caret($direction: down) {\n  @if $enable-caret {\n    &::after {\n      display: inline-block;\n      margin-left: $caret-spacing;\n      vertical-align: $caret-vertical-align;\n      content: \"\";\n      @if $direction == down {\n        @include caret-down();\n      } @else if $direction == up {\n        @include caret-up();\n      } @else if $direction == end {\n        @include caret-end();\n      }\n    }\n\n    @if $direction == start {\n      &::after {\n        display: none;\n      }\n\n      &::before {\n        display: inline-block;\n        margin-right: $caret-spacing;\n        vertical-align: $caret-vertical-align;\n        content: \"\";\n        @include caret-start();\n      }\n    }\n\n    &:empty::after {\n      margin-left: 0;\n    }\n  }\n}\n// scss-docs-end caret-mixins\n","// Make the div behave like a button\n.btn-group,\n.btn-group-vertical {\n  position: relative;\n  display: inline-flex;\n  vertical-align: middle; // match .btn alignment given font-size hack above\n\n  > .btn {\n    position: relative;\n    flex: 1 1 auto;\n  }\n\n  // Bring the hover, focused, and \"active\" buttons to the front to overlay\n  // the borders properly\n  > .btn-check:checked + .btn,\n  > .btn-check:focus + .btn,\n  > .btn:hover,\n  > .btn:focus,\n  > .btn:active,\n  > .btn.active {\n    z-index: 1;\n  }\n}\n\n// Optional: Group multiple button groups together for a toolbar\n.btn-toolbar {\n  display: flex;\n  flex-wrap: wrap;\n  justify-content: flex-start;\n\n  .input-group {\n    width: auto;\n  }\n}\n\n.btn-group {\n  // Prevent double borders when buttons are next to each other\n  > .btn:not(:first-child),\n  > .btn-group:not(:first-child) {\n    margin-left: -$btn-border-width;\n  }\n\n  // Reset rounded corners\n  > .btn:not(:last-child):not(.dropdown-toggle),\n  > .btn-group:not(:last-child) > .btn {\n    @include border-end-radius(0);\n  }\n\n  // The left radius should be 0 if the button is:\n  // - the \"third or more\" child\n  // - the second child and the previous element isn't `.btn-check` (making it the first child visually)\n  // - part of a btn-group which isn't the first child\n  > .btn:nth-child(n + 3),\n  > :not(.btn-check) + .btn,\n  > .btn-group:not(:first-child) > .btn {\n    @include border-start-radius(0);\n  }\n}\n\n// Sizing\n//\n// Remix the default button sizing classes into new ones for easier manipulation.\n\n.btn-group-sm > .btn { @extend .btn-sm; }\n.btn-group-lg > .btn { @extend .btn-lg; }\n\n\n//\n// Split button dropdowns\n//\n\n.dropdown-toggle-split {\n  padding-right: $btn-padding-x * .75;\n  padding-left: $btn-padding-x * .75;\n\n  &::after,\n  .dropup &::after,\n  .dropend &::after {\n    margin-left: 0;\n  }\n\n  .dropstart &::before {\n    margin-right: 0;\n  }\n}\n\n.btn-sm + .dropdown-toggle-split {\n  padding-right: $btn-padding-x-sm * .75;\n  padding-left: $btn-padding-x-sm * .75;\n}\n\n.btn-lg + .dropdown-toggle-split {\n  padding-right: $btn-padding-x-lg * .75;\n  padding-left: $btn-padding-x-lg * .75;\n}\n\n\n// The clickable button for toggling the menu\n// Set the same inset shadow as the :active state\n.btn-group.show .dropdown-toggle {\n  @include box-shadow($btn-active-box-shadow);\n\n  // Show no shadow for `.btn-link` since it has no other button styles.\n  &.btn-link {\n    @include box-shadow(none);\n  }\n}\n\n\n//\n// Vertical button groups\n//\n\n.btn-group-vertical {\n  flex-direction: column;\n  align-items: flex-start;\n  justify-content: center;\n\n  > .btn,\n  > .btn-group {\n    width: 100%;\n  }\n\n  > .btn:not(:first-child),\n  > .btn-group:not(:first-child) {\n    margin-top: -$btn-border-width;\n  }\n\n  // Reset rounded corners\n  > .btn:not(:last-child):not(.dropdown-toggle),\n  > .btn-group:not(:last-child) > .btn {\n    @include border-bottom-radius(0);\n  }\n\n  > .btn ~ .btn,\n  > .btn-group:not(:first-child) > .btn {\n    @include border-top-radius(0);\n  }\n}\n","// Base class\n//\n// Kickstart any navigation component with a set of style resets. Works with\n// `<nav>`s, `<ul>`s or `<ol>`s.\n\n.nav {\n  display: flex;\n  flex-wrap: wrap;\n  padding-left: 0;\n  margin-bottom: 0;\n  list-style: none;\n}\n\n.nav-link {\n  display: block;\n  padding: $nav-link-padding-y $nav-link-padding-x;\n  @include font-size($nav-link-font-size);\n  font-weight: $nav-link-font-weight;\n  color: $nav-link-color;\n  text-decoration: if($link-decoration == none, null, none);\n  @include transition($nav-link-transition);\n\n  &:hover,\n  &:focus {\n    color: $nav-link-hover-color;\n    text-decoration: if($link-hover-decoration == underline, none, null);\n  }\n\n  // Disabled state lightens text\n  &.disabled {\n    color: $nav-link-disabled-color;\n    pointer-events: none;\n    cursor: default;\n  }\n}\n\n//\n// Tabs\n//\n\n.nav-tabs {\n  border-bottom: $nav-tabs-border-width solid $nav-tabs-border-color;\n\n  .nav-link {\n    margin-bottom: -$nav-tabs-border-width;\n    background: none;\n    border: $nav-tabs-border-width solid transparent;\n    @include border-top-radius($nav-tabs-border-radius);\n\n    &:hover,\n    &:focus {\n      border-color: $nav-tabs-link-hover-border-color;\n      // Prevents active .nav-link tab overlapping focus outline of previous/next .nav-link\n      isolation: isolate;\n    }\n\n    &.disabled {\n      color: $nav-link-disabled-color;\n      background-color: transparent;\n      border-color: transparent;\n    }\n  }\n\n  .nav-link.active,\n  .nav-item.show .nav-link {\n    color: $nav-tabs-link-active-color;\n    background-color: $nav-tabs-link-active-bg;\n    border-color: $nav-tabs-link-active-border-color;\n  }\n\n  .dropdown-menu {\n    // Make dropdown border overlap tab border\n    margin-top: -$nav-tabs-border-width;\n    // Remove the top rounded corners here since there is a hard edge above the menu\n    @include border-top-radius(0);\n  }\n}\n\n\n//\n// Pills\n//\n\n.nav-pills {\n  .nav-link {\n    background: none;\n    border: 0;\n    @include border-radius($nav-pills-border-radius);\n  }\n\n  .nav-link.active,\n  .show > .nav-link {\n    color: $nav-pills-link-active-color;\n    @include gradient-bg($nav-pills-link-active-bg);\n  }\n}\n\n\n//\n// Justified variants\n//\n\n.nav-fill {\n  > .nav-link,\n  .nav-item {\n    flex: 1 1 auto;\n    text-align: center;\n  }\n}\n\n.nav-justified {\n  > .nav-link,\n  .nav-item {\n    flex-basis: 0;\n    flex-grow: 1;\n    text-align: center;\n  }\n}\n\n.nav-fill,\n.nav-justified {\n  .nav-item .nav-link {\n    width: 100%; // Make sure button will grow\n  }\n}\n\n\n// Tabbable tabs\n//\n// Hide tabbable panes to start, show them when `.active`\n\n.tab-content {\n  > .tab-pane {\n    display: none;\n  }\n  > .active {\n    display: block;\n  }\n}\n","// Contents\n//\n// Navbar\n// Navbar brand\n// Navbar nav\n// Navbar text\n// Responsive navbar\n// Navbar position\n// Navbar themes\n\n\n// Navbar\n//\n// Provide a static navbar from which we expand to create full-width, fixed, and\n// other navbar variations.\n\n.navbar {\n  position: relative;\n  display: flex;\n  flex-wrap: wrap; // allow us to do the line break for collapsing content\n  align-items: center;\n  justify-content: space-between; // space out brand from logo\n  padding-top: $navbar-padding-y;\n  padding-right: $navbar-padding-x; // default: null\n  padding-bottom: $navbar-padding-y;\n  padding-left: $navbar-padding-x; // default: null\n  @include gradient-bg();\n\n  // Because flex properties aren't inherited, we need to redeclare these first\n  // few properties so that content nested within behave properly.\n  // The `flex-wrap` property is inherited to simplify the expanded navbars\n  %container-flex-properties {\n    display: flex;\n    flex-wrap: inherit;\n    align-items: center;\n    justify-content: space-between;\n  }\n\n  > .container,\n  > .container-fluid {\n    @extend %container-flex-properties;\n  }\n\n  @each $breakpoint, $container-max-width in $container-max-widths {\n    > .container#{breakpoint-infix($breakpoint, $container-max-widths)} {\n      @extend %container-flex-properties;\n    }\n  }\n}\n\n\n// Navbar brand\n//\n// Used for brand, project, or site names.\n\n.navbar-brand {\n  padding-top: $navbar-brand-padding-y;\n  padding-bottom: $navbar-brand-padding-y;\n  margin-right: $navbar-brand-margin-end;\n  @include font-size($navbar-brand-font-size);\n  text-decoration: if($link-decoration == none, null, none);\n  white-space: nowrap;\n\n  &:hover,\n  &:focus {\n    text-decoration: if($link-hover-decoration == underline, none, null);\n  }\n}\n\n\n// Navbar nav\n//\n// Custom navbar navigation (doesn't require `.nav`, but does make use of `.nav-link`).\n\n.navbar-nav {\n  display: flex;\n  flex-direction: column; // cannot use `inherit` to get the `.navbar`s value\n  padding-left: 0;\n  margin-bottom: 0;\n  list-style: none;\n\n  .nav-link {\n    padding-right: 0;\n    padding-left: 0;\n  }\n\n  .dropdown-menu {\n    position: static;\n  }\n}\n\n\n// Navbar text\n//\n//\n\n.navbar-text {\n  padding-top: $nav-link-padding-y;\n  padding-bottom: $nav-link-padding-y;\n}\n\n\n// Responsive navbar\n//\n// Custom styles for responsive collapsing and toggling of navbar contents.\n// Powered by the collapse Bootstrap JavaScript plugin.\n\n// When collapsed, prevent the toggleable navbar contents from appearing in\n// the default flexbox row orientation. Requires the use of `flex-wrap: wrap`\n// on the `.navbar` parent.\n.navbar-collapse {\n  flex-basis: 100%;\n  flex-grow: 1;\n  // For always expanded or extra full navbars, ensure content aligns itself\n  // properly vertically. Can be easily overridden with flex utilities.\n  align-items: center;\n}\n\n// Button for toggling the navbar when in its collapsed state\n.navbar-toggler {\n  padding: $navbar-toggler-padding-y $navbar-toggler-padding-x;\n  @include font-size($navbar-toggler-font-size);\n  line-height: 1;\n  background-color: transparent; // remove default button style\n  border: $border-width solid transparent; // remove default button style\n  @include border-radius($navbar-toggler-border-radius);\n  @include transition($navbar-toggler-transition);\n\n  &:hover {\n    text-decoration: none;\n  }\n\n  &:focus {\n    text-decoration: none;\n    outline: 0;\n    box-shadow: 0 0 0 $navbar-toggler-focus-width;\n  }\n}\n\n// Keep as a separate element so folks can easily override it with another icon\n// or image file as needed.\n.navbar-toggler-icon {\n  display: inline-block;\n  width: 1.5em;\n  height: 1.5em;\n  vertical-align: middle;\n  background-repeat: no-repeat;\n  background-position: center;\n  background-size: 100%;\n}\n\n.navbar-nav-scroll {\n  max-height: var(--#{$variable-prefix}scroll-height, 75vh);\n  overflow-y: auto;\n}\n\n// scss-docs-start navbar-expand-loop\n// Generate series of `.navbar-expand-*` responsive classes for configuring\n// where your navbar collapses.\n.navbar-expand {\n  @each $breakpoint in map-keys($grid-breakpoints) {\n    $next: breakpoint-next($breakpoint, $grid-breakpoints);\n    $infix: breakpoint-infix($next, $grid-breakpoints);\n\n    // stylelint-disable-next-line scss/selector-no-union-class-name\n    &#{$infix} {\n      @include media-breakpoint-up($next) {\n        flex-wrap: nowrap;\n        justify-content: flex-start;\n\n        .navbar-nav {\n          flex-direction: row;\n\n          .dropdown-menu {\n            position: absolute;\n          }\n\n          .nav-link {\n            padding-right: $navbar-nav-link-padding-x;\n            padding-left: $navbar-nav-link-padding-x;\n          }\n        }\n\n        .navbar-nav-scroll {\n          overflow: visible;\n        }\n\n        .navbar-collapse {\n          display: flex !important; // stylelint-disable-line declaration-no-important\n          flex-basis: auto;\n        }\n\n        .navbar-toggler {\n          display: none;\n        }\n\n        .offcanvas-header {\n          display: none;\n        }\n\n        .offcanvas {\n          position: inherit;\n          bottom: 0;\n          z-index: 1000;\n          flex-grow: 1;\n          visibility: visible !important; // stylelint-disable-line declaration-no-important\n          background-color: transparent;\n          border-right: 0;\n          border-left: 0;\n          @include transition(none);\n          transform: none;\n        }\n        .offcanvas-top,\n        .offcanvas-bottom {\n          height: auto;\n          border-top: 0;\n          border-bottom: 0;\n        }\n\n        .offcanvas-body {\n          display: flex;\n          flex-grow: 0;\n          padding: 0;\n          overflow-y: visible;\n        }\n      }\n    }\n  }\n}\n// scss-docs-end navbar-expand-loop\n\n// Navbar themes\n//\n// Styles for switching between navbars with light or dark background.\n\n// Dark links against a light background\n.navbar-light {\n  .navbar-brand {\n    color: $navbar-light-brand-color;\n\n    &:hover,\n    &:focus {\n      color: $navbar-light-brand-hover-color;\n    }\n  }\n\n  .navbar-nav {\n    .nav-link {\n      color: $navbar-light-color;\n\n      &:hover,\n      &:focus {\n        color: $navbar-light-hover-color;\n      }\n\n      &.disabled {\n        color: $navbar-light-disabled-color;\n      }\n    }\n\n    .show > .nav-link,\n    .nav-link.active {\n      color: $navbar-light-active-color;\n    }\n  }\n\n  .navbar-toggler {\n    color: $navbar-light-color;\n    border-color: $navbar-light-toggler-border-color;\n  }\n\n  .navbar-toggler-icon {\n    background-image: escape-svg($navbar-light-toggler-icon-bg);\n  }\n\n  .navbar-text {\n    color: $navbar-light-color;\n\n    a,\n    a:hover,\n    a:focus  {\n      color: $navbar-light-active-color;\n    }\n  }\n}\n\n// White links against a dark background\n.navbar-dark {\n  .navbar-brand {\n    color: $navbar-dark-brand-color;\n\n    &:hover,\n    &:focus {\n      color: $navbar-dark-brand-hover-color;\n    }\n  }\n\n  .navbar-nav {\n    .nav-link {\n      color: $navbar-dark-color;\n\n      &:hover,\n      &:focus {\n        color: $navbar-dark-hover-color;\n      }\n\n      &.disabled {\n        color: $navbar-dark-disabled-color;\n      }\n    }\n\n    .show > .nav-link,\n    .nav-link.active {\n      color: $navbar-dark-active-color;\n    }\n  }\n\n  .navbar-toggler {\n    color: $navbar-dark-color;\n    border-color: $navbar-dark-toggler-border-color;\n  }\n\n  .navbar-toggler-icon {\n    background-image: escape-svg($navbar-dark-toggler-icon-bg);\n  }\n\n  .navbar-text {\n    color: $navbar-dark-color;\n    a,\n    a:hover,\n    a:focus {\n      color: $navbar-dark-active-color;\n    }\n  }\n}\n","//\n// Base styles\n//\n\n.card {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  min-width: 0; // See https://github.com/twbs/bootstrap/pull/22740#issuecomment-305868106\n  height: $card-height;\n  word-wrap: break-word;\n  background-color: $card-bg;\n  background-clip: border-box;\n  border: $card-border-width solid $card-border-color;\n  @include border-radius($card-border-radius);\n  @include box-shadow($card-box-shadow);\n\n  > hr {\n    margin-right: 0;\n    margin-left: 0;\n  }\n\n  > .list-group {\n    border-top: inherit;\n    border-bottom: inherit;\n\n    &:first-child {\n      border-top-width: 0;\n      @include border-top-radius($card-inner-border-radius);\n    }\n\n    &:last-child  {\n      border-bottom-width: 0;\n      @include border-bottom-radius($card-inner-border-radius);\n    }\n  }\n\n  // Due to specificity of the above selector (`.card > .list-group`), we must\n  // use a child selector here to prevent double borders.\n  > .card-header + .list-group,\n  > .list-group + .card-footer {\n    border-top: 0;\n  }\n}\n\n.card-body {\n  // Enable `flex-grow: 1` for decks and groups so that card blocks take up\n  // as much space as possible, ensuring footers are aligned to the bottom.\n  flex: 1 1 auto;\n  padding: $card-spacer-y $card-spacer-x;\n  color: $card-color;\n}\n\n.card-title {\n  margin-bottom: $card-title-spacer-y;\n}\n\n.card-subtitle {\n  margin-top: -$card-title-spacer-y * .5;\n  margin-bottom: 0;\n}\n\n.card-text:last-child {\n  margin-bottom: 0;\n}\n\n.card-link {\n  &:hover {\n    text-decoration: if($link-hover-decoration == underline, none, null);\n  }\n\n  + .card-link {\n    margin-left: $card-spacer-x;\n  }\n}\n\n//\n// Optional textual caps\n//\n\n.card-header {\n  padding: $card-cap-padding-y $card-cap-padding-x;\n  margin-bottom: 0; // Removes the default margin-bottom of <hN>\n  color: $card-cap-color;\n  background-color: $card-cap-bg;\n  border-bottom: $card-border-width solid $card-border-color;\n\n  &:first-child {\n    @include border-radius($card-inner-border-radius $card-inner-border-radius 0 0);\n  }\n}\n\n.card-footer {\n  padding: $card-cap-padding-y $card-cap-padding-x;\n  color: $card-cap-color;\n  background-color: $card-cap-bg;\n  border-top: $card-border-width solid $card-border-color;\n\n  &:last-child {\n    @include border-radius(0 0 $card-inner-border-radius $card-inner-border-radius);\n  }\n}\n\n\n//\n// Header navs\n//\n\n.card-header-tabs {\n  margin-right: -$card-cap-padding-x * .5;\n  margin-bottom: -$card-cap-padding-y;\n  margin-left: -$card-cap-padding-x * .5;\n  border-bottom: 0;\n\n  @if $nav-tabs-link-active-bg != $card-bg {\n    .nav-link.active {\n      background-color: $card-bg;\n      border-bottom-color: $card-bg;\n    }\n  }\n}\n\n.card-header-pills {\n  margin-right: -$card-cap-padding-x * .5;\n  margin-left: -$card-cap-padding-x * .5;\n}\n\n// Card image\n.card-img-overlay {\n  position: absolute;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  padding: $card-img-overlay-padding;\n  @include border-radius($card-inner-border-radius);\n}\n\n.card-img,\n.card-img-top,\n.card-img-bottom {\n  width: 100%; // Required because we use flexbox and this inherently applies align-self: stretch\n}\n\n.card-img,\n.card-img-top {\n  @include border-top-radius($card-inner-border-radius);\n}\n\n.card-img,\n.card-img-bottom {\n  @include border-bottom-radius($card-inner-border-radius);\n}\n\n\n//\n// Card groups\n//\n\n.card-group {\n  // The child selector allows nested `.card` within `.card-group`\n  // to display properly.\n  > .card {\n    margin-bottom: $card-group-margin;\n  }\n\n  @include media-breakpoint-up(sm) {\n    display: flex;\n    flex-flow: row wrap;\n    // The child selector allows nested `.card` within `.card-group`\n    // to display properly.\n    > .card {\n      // Flexbugs #4: https://github.com/philipwalton/flexbugs#flexbug-4\n      flex: 1 0 0%;\n      margin-bottom: 0;\n\n      + .card {\n        margin-left: 0;\n        border-left: 0;\n      }\n\n      // Handle rounded corners\n      @if $enable-rounded {\n        &:not(:last-child) {\n          @include border-end-radius(0);\n\n          .card-img-top,\n          .card-header {\n            // stylelint-disable-next-line property-disallowed-list\n            border-top-right-radius: 0;\n          }\n          .card-img-bottom,\n          .card-footer {\n            // stylelint-disable-next-line property-disallowed-list\n            border-bottom-right-radius: 0;\n          }\n        }\n\n        &:not(:first-child) {\n          @include border-start-radius(0);\n\n          .card-img-top,\n          .card-header {\n            // stylelint-disable-next-line property-disallowed-list\n            border-top-left-radius: 0;\n          }\n          .card-img-bottom,\n          .card-footer {\n            // stylelint-disable-next-line property-disallowed-list\n            border-bottom-left-radius: 0;\n          }\n        }\n      }\n    }\n  }\n}\n","//\n// Base styles\n//\n\n.accordion-button {\n  position: relative;\n  display: flex;\n  align-items: center;\n  width: 100%;\n  padding: $accordion-button-padding-y $accordion-button-padding-x;\n  @include font-size($font-size-base);\n  color: $accordion-button-color;\n  text-align: left; // Reset button style\n  background-color: $accordion-button-bg;\n  border: 0;\n  @include border-radius(0);\n  overflow-anchor: none;\n  @include transition($accordion-transition);\n\n  &:not(.collapsed) {\n    color: $accordion-button-active-color;\n    background-color: $accordion-button-active-bg;\n    box-shadow: inset 0 ($accordion-border-width * -1) 0 $accordion-border-color;\n\n    &::after {\n      background-image: escape-svg($accordion-button-active-icon);\n      transform: $accordion-icon-transform;\n    }\n  }\n\n  // Accordion icon\n  &::after {\n    flex-shrink: 0;\n    width: $accordion-icon-width;\n    height: $accordion-icon-width;\n    margin-left: auto;\n    content: \"\";\n    background-image: escape-svg($accordion-button-icon);\n    background-repeat: no-repeat;\n    background-size: $accordion-icon-width;\n    @include transition($accordion-icon-transition);\n  }\n\n  &:hover {\n    z-index: 2;\n  }\n\n  &:focus {\n    z-index: 3;\n    border-color: $accordion-button-focus-border-color;\n    outline: 0;\n    box-shadow: $accordion-button-focus-box-shadow;\n  }\n}\n\n.accordion-header {\n  margin-bottom: 0;\n}\n\n.accordion-item {\n  background-color: $accordion-bg;\n  border: $accordion-border-width solid $accordion-border-color;\n\n  &:first-of-type {\n    @include border-top-radius($accordion-border-radius);\n\n    .accordion-button {\n      @include border-top-radius($accordion-inner-border-radius);\n    }\n  }\n\n  &:not(:first-of-type) {\n    border-top: 0;\n  }\n\n  // Only set a border-radius on the last item if the accordion is collapsed\n  &:last-of-type {\n    @include border-bottom-radius($accordion-border-radius);\n\n    .accordion-button {\n      &.collapsed {\n        @include border-bottom-radius($accordion-inner-border-radius);\n      }\n    }\n\n    .accordion-collapse {\n      @include border-bottom-radius($accordion-border-radius);\n    }\n  }\n}\n\n.accordion-body {\n  padding: $accordion-body-padding-y $accordion-body-padding-x;\n}\n\n\n// Flush accordion items\n//\n// Remove borders and border-radius to keep accordion items edge-to-edge.\n\n.accordion-flush {\n  .accordion-collapse {\n    border-width: 0;\n  }\n\n  .accordion-item {\n    border-right: 0;\n    border-left: 0;\n    @include border-radius(0);\n\n    &:first-child { border-top: 0; }\n    &:last-child { border-bottom: 0; }\n\n    .accordion-button {\n      @include border-radius(0);\n    }\n  }\n}\n",".breadcrumb {\n  display: flex;\n  flex-wrap: wrap;\n  padding: $breadcrumb-padding-y $breadcrumb-padding-x;\n  margin-bottom: $breadcrumb-margin-bottom;\n  @include font-size($breadcrumb-font-size);\n  list-style: none;\n  background-color: $breadcrumb-bg;\n  @include border-radius($breadcrumb-border-radius);\n}\n\n.breadcrumb-item {\n  // The separator between breadcrumbs (by default, a forward-slash: \"/\")\n  + .breadcrumb-item {\n    padding-left: $breadcrumb-item-padding-x;\n\n    &::before {\n      float: left; // Suppress inline spacings and underlining of the separator\n      padding-right: $breadcrumb-item-padding-x;\n      color: $breadcrumb-divider-color;\n      content: var(--#{$variable-prefix}breadcrumb-divider, escape-svg($breadcrumb-divider)) #{\"/* rtl:\"} var(--#{$variable-prefix}breadcrumb-divider, escape-svg($breadcrumb-divider-flipped)) #{\"*/\"};\n    }\n  }\n\n  &.active {\n    color: $breadcrumb-active-color;\n  }\n}\n",".pagination {\n  display: flex;\n  @include list-unstyled();\n}\n\n.page-link {\n  position: relative;\n  display: block;\n  color: $pagination-color;\n  text-decoration: if($link-decoration == none, null, none);\n  background-color: $pagination-bg;\n  border: $pagination-border-width solid $pagination-border-color;\n  @include transition($pagination-transition);\n\n  &:hover {\n    z-index: 2;\n    color: $pagination-hover-color;\n    text-decoration: if($link-hover-decoration == underline, none, null);\n    background-color: $pagination-hover-bg;\n    border-color: $pagination-hover-border-color;\n  }\n\n  &:focus {\n    z-index: 3;\n    color: $pagination-focus-color;\n    background-color: $pagination-focus-bg;\n    outline: $pagination-focus-outline;\n    box-shadow: $pagination-focus-box-shadow;\n  }\n}\n\n.page-item {\n  &:not(:first-child) .page-link {\n    margin-left: $pagination-margin-start;\n  }\n\n  &.active .page-link {\n    z-index: 3;\n    color: $pagination-active-color;\n    @include gradient-bg($pagination-active-bg);\n    border-color: $pagination-active-border-color;\n  }\n\n  &.disabled .page-link {\n    color: $pagination-disabled-color;\n    pointer-events: none;\n    background-color: $pagination-disabled-bg;\n    border-color: $pagination-disabled-border-color;\n  }\n}\n\n\n//\n// Sizing\n//\n@include pagination-size($pagination-padding-y, $pagination-padding-x, null, $pagination-border-radius);\n\n.pagination-lg {\n  @include pagination-size($pagination-padding-y-lg, $pagination-padding-x-lg, $font-size-lg, $pagination-border-radius-lg);\n}\n\n.pagination-sm {\n  @include pagination-size($pagination-padding-y-sm, $pagination-padding-x-sm, $font-size-sm, $pagination-border-radius-sm);\n}\n","// Pagination\n\n// scss-docs-start pagination-mixin\n@mixin pagination-size($padding-y, $padding-x, $font-size, $border-radius) {\n  .page-link {\n    padding: $padding-y $padding-x;\n    @include font-size($font-size);\n  }\n\n  .page-item {\n    @if $pagination-margin-start == (-$pagination-border-width) {\n      &:first-child {\n        .page-link {\n          @include border-start-radius($border-radius);\n        }\n      }\n\n      &:last-child {\n        .page-link {\n          @include border-end-radius($border-radius);\n        }\n      }\n    } @else {\n      //Add border-radius to all pageLinks in case they have left margin\n      .page-link {\n        @include border-radius($border-radius);\n      }\n    }\n  }\n}\n// scss-docs-end pagination-mixin\n","// Base class\n//\n// Requires one of the contextual, color modifier classes for `color` and\n// `background-color`.\n\n.badge {\n  display: inline-block;\n  padding: $badge-padding-y $badge-padding-x;\n  @include font-size($badge-font-size);\n  font-weight: $badge-font-weight;\n  line-height: 1;\n  color: $badge-color;\n  text-align: center;\n  white-space: nowrap;\n  vertical-align: baseline;\n  @include border-radius($badge-border-radius);\n  @include gradient-bg();\n\n  // Empty badges collapse automatically\n  &:empty {\n    display: none;\n  }\n}\n\n// Quick fix for badges in buttons\n.btn .badge {\n  position: relative;\n  top: -1px;\n}\n","//\n// Base styles\n//\n\n.alert {\n  position: relative;\n  padding: $alert-padding-y $alert-padding-x;\n  margin-bottom: $alert-margin-bottom;\n  border: $alert-border-width solid transparent;\n  @include border-radius($alert-border-radius);\n}\n\n// Headings for larger alerts\n.alert-heading {\n  // Specified to prevent conflicts of changing $headings-color\n  color: inherit;\n}\n\n// Provide class for links that match alerts\n.alert-link {\n  font-weight: $alert-link-font-weight;\n}\n\n\n// Dismissible alerts\n//\n// Expand the right padding and account for the close button's positioning.\n\n.alert-dismissible {\n  padding-right: $alert-dismissible-padding-r;\n\n  // Adjust close link position\n  .btn-close {\n    position: absolute;\n    top: 0;\n    right: 0;\n    z-index: $stretched-link-z-index + 1;\n    padding: $alert-padding-y * 1.25 $alert-padding-x;\n  }\n}\n\n\n// scss-docs-start alert-modifiers\n// Generate contextual modifier classes for colorizing the alert.\n\n@each $state, $value in $theme-colors {\n  $alert-background: shift-color($value, $alert-bg-scale);\n  $alert-border: shift-color($value, $alert-border-scale);\n  $alert-color: shift-color($value, $alert-color-scale);\n  @if (contrast-ratio($alert-background, $alert-color) < $min-contrast-ratio) {\n    $alert-color: mix($value, color-contrast($alert-background), abs($alert-color-scale));\n  }\n  .alert-#{$state} {\n    @include alert-variant($alert-background, $alert-border, $alert-color);\n  }\n}\n// scss-docs-end alert-modifiers\n","// scss-docs-start alert-variant-mixin\n@mixin alert-variant($background, $border, $color) {\n  color: $color;\n  @include gradient-bg($background);\n  border-color: $border;\n\n  .alert-link {\n    color: shade-color($color, 20%);\n  }\n}\n// scss-docs-end alert-variant-mixin\n","// Disable animation if transitions are disabled\n\n// scss-docs-start progress-keyframes\n@if $enable-transitions {\n  @keyframes progress-bar-stripes {\n    0% { background-position-x: $progress-height; }\n  }\n}\n// scss-docs-end progress-keyframes\n\n.progress {\n  display: flex;\n  height: $progress-height;\n  overflow: hidden; // force rounded corners by cropping it\n  @include font-size($progress-font-size);\n  background-color: $progress-bg;\n  @include border-radius($progress-border-radius);\n  @include box-shadow($progress-box-shadow);\n}\n\n.progress-bar {\n  display: flex;\n  flex-direction: column;\n  justify-content: center;\n  overflow: hidden;\n  color: $progress-bar-color;\n  text-align: center;\n  white-space: nowrap;\n  background-color: $progress-bar-bg;\n  @include transition($progress-bar-transition);\n}\n\n.progress-bar-striped {\n  @include gradient-striped();\n  background-size: $progress-height $progress-height;\n}\n\n@if $enable-transitions {\n  .progress-bar-animated {\n    animation: $progress-bar-animation-timing progress-bar-stripes;\n\n    @if $enable-reduced-motion {\n      @media (prefers-reduced-motion: reduce) {\n        animation: none;\n      }\n    }\n  }\n}\n","// Base class\n//\n// Easily usable on <ul>, <ol>, or <div>.\n\n.list-group {\n  display: flex;\n  flex-direction: column;\n\n  // No need to set list-style: none; since .list-group-item is block level\n  padding-left: 0; // reset padding because ul and ol\n  margin-bottom: 0;\n  @include border-radius($list-group-border-radius);\n}\n\n.list-group-numbered {\n  list-style-type: none;\n  counter-reset: section;\n\n  > li::before {\n    // Increments only this instance of the section counter\n    content: counters(section, \".\") \". \";\n    counter-increment: section;\n  }\n}\n\n\n// Interactive list items\n//\n// Use anchor or button elements instead of `li`s or `div`s to create interactive\n// list items. Includes an extra `.active` modifier class for selected items.\n\n.list-group-item-action {\n  width: 100%; // For `<button>`s (anchors become 100% by default though)\n  color: $list-group-action-color;\n  text-align: inherit; // For `<button>`s (anchors inherit)\n\n  // Hover state\n  &:hover,\n  &:focus {\n    z-index: 1; // Place hover/focus items above their siblings for proper border styling\n    color: $list-group-action-hover-color;\n    text-decoration: none;\n    background-color: $list-group-hover-bg;\n  }\n\n  &:active {\n    color: $list-group-action-active-color;\n    background-color: $list-group-action-active-bg;\n  }\n}\n\n\n// Individual list items\n//\n// Use on `li`s or `div`s within the `.list-group` parent.\n\n.list-group-item {\n  position: relative;\n  display: block;\n  padding: $list-group-item-padding-y $list-group-item-padding-x;\n  color: $list-group-color;\n  text-decoration: if($link-decoration == none, null, none);\n  background-color: $list-group-bg;\n  border: $list-group-border-width solid $list-group-border-color;\n\n  &:first-child {\n    @include border-top-radius(inherit);\n  }\n\n  &:last-child {\n    @include border-bottom-radius(inherit);\n  }\n\n  &.disabled,\n  &:disabled {\n    color: $list-group-disabled-color;\n    pointer-events: none;\n    background-color: $list-group-disabled-bg;\n  }\n\n  // Include both here for `<a>`s and `<button>`s\n  &.active {\n    z-index: 2; // Place active items above their siblings for proper border styling\n    color: $list-group-active-color;\n    background-color: $list-group-active-bg;\n    border-color: $list-group-active-border-color;\n  }\n\n  & + & {\n    border-top-width: 0;\n\n    &.active {\n      margin-top: -$list-group-border-width;\n      border-top-width: $list-group-border-width;\n    }\n  }\n}\n\n\n// Horizontal\n//\n// Change the layout of list group items from vertical (default) to horizontal.\n\n@each $breakpoint in map-keys($grid-breakpoints) {\n  @include media-breakpoint-up($breakpoint) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    .list-group-horizontal#{$infix} {\n      flex-direction: row;\n\n      > .list-group-item {\n        &:first-child {\n          @include border-bottom-start-radius($list-group-border-radius);\n          @include border-top-end-radius(0);\n        }\n\n        &:last-child {\n          @include border-top-end-radius($list-group-border-radius);\n          @include border-bottom-start-radius(0);\n        }\n\n        &.active {\n          margin-top: 0;\n        }\n\n        + .list-group-item {\n          border-top-width: $list-group-border-width;\n          border-left-width: 0;\n\n          &.active {\n            margin-left: -$list-group-border-width;\n            border-left-width: $list-group-border-width;\n          }\n        }\n      }\n    }\n  }\n}\n\n\n// Flush list items\n//\n// Remove borders and border-radius to keep list group items edge-to-edge. Most\n// useful within other components (e.g., cards).\n\n.list-group-flush {\n  @include border-radius(0);\n\n  > .list-group-item {\n    border-width: 0 0 $list-group-border-width;\n\n    &:last-child {\n      border-bottom-width: 0;\n    }\n  }\n}\n\n\n// scss-docs-start list-group-modifiers\n// List group contextual variants\n//\n// Add modifier classes to change text and background color on individual items.\n// Organizationally, this must come after the `:hover` states.\n\n@each $state, $value in $theme-colors {\n  $list-group-variant-bg: shift-color($value, $list-group-item-bg-scale);\n  $list-group-variant-color: shift-color($value, $list-group-item-color-scale);\n  @if (contrast-ratio($list-group-variant-bg, $list-group-variant-color) < $min-contrast-ratio) {\n    $list-group-variant-color: mix($value, color-contrast($list-group-variant-bg), abs($list-group-item-color-scale));\n  }\n\n  @include list-group-item-variant($state, $list-group-variant-bg, $list-group-variant-color);\n}\n// scss-docs-end list-group-modifiers\n","// List Groups\n\n// scss-docs-start list-group-mixin\n@mixin list-group-item-variant($state, $background, $color) {\n  .list-group-item-#{$state} {\n    color: $color;\n    background-color: $background;\n\n    &.list-group-item-action {\n      &:hover,\n      &:focus {\n        color: $color;\n        background-color: shade-color($background, 10%);\n      }\n\n      &.active {\n        color: $white;\n        background-color: $color;\n        border-color: $color;\n      }\n    }\n  }\n}\n// scss-docs-end list-group-mixin\n","// transparent background and border properties included for button version.\n// iOS requires the button element instead of an anchor tag.\n// If you want the anchor version, it requires `href=\"#\"`.\n// See https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile\n\n.btn-close {\n  box-sizing: content-box;\n  width: $btn-close-width;\n  height: $btn-close-height;\n  padding: $btn-close-padding-y $btn-close-padding-x;\n  color: $btn-close-color;\n  background: transparent escape-svg($btn-close-bg) center / $btn-close-width auto no-repeat; // include transparent for button elements\n  border: 0; // for button elements\n  @include border-radius();\n  opacity: $btn-close-opacity;\n\n  // Override <a>'s hover style\n  &:hover {\n    color: $btn-close-color;\n    text-decoration: none;\n    opacity: $btn-close-hover-opacity;\n  }\n\n  &:focus {\n    outline: 0;\n    box-shadow: $btn-close-focus-shadow;\n    opacity: $btn-close-focus-opacity;\n  }\n\n  &:disabled,\n  &.disabled {\n    pointer-events: none;\n    user-select: none;\n    opacity: $btn-close-disabled-opacity;\n  }\n}\n\n.btn-close-white {\n  filter: $btn-close-white-filter;\n}\n",".toast {\n  width: $toast-max-width;\n  max-width: 100%;\n  @include font-size($toast-font-size);\n  color: $toast-color;\n  pointer-events: auto;\n  background-color: $toast-background-color;\n  background-clip: padding-box;\n  border: $toast-border-width solid $toast-border-color;\n  box-shadow: $toast-box-shadow;\n  @include border-radius($toast-border-radius);\n\n  &.showing {\n    opacity: 0;\n  }\n\n  &:not(.show) {\n    display: none;\n  }\n}\n\n.toast-container {\n  width: max-content;\n  max-width: 100%;\n  pointer-events: none;\n\n  > :not(:last-child) {\n    margin-bottom: $toast-spacing;\n  }\n}\n\n.toast-header {\n  display: flex;\n  align-items: center;\n  padding: $toast-padding-y $toast-padding-x;\n  color: $toast-header-color;\n  background-color: $toast-header-background-color;\n  background-clip: padding-box;\n  border-bottom: $toast-border-width solid $toast-header-border-color;\n  @include border-top-radius(subtract($toast-border-radius, $toast-border-width));\n\n  .btn-close {\n    margin-right: $toast-padding-x * -.5;\n    margin-left: $toast-padding-x;\n  }\n}\n\n.toast-body {\n  padding: $toast-padding-x; // apply to both vertical and horizontal\n  word-wrap: break-word;\n}\n","// .modal-open      - body class for killing the scroll\n// .modal           - container to scroll within\n// .modal-dialog    - positioning shell for the actual modal\n// .modal-content   - actual modal w/ bg and corners and stuff\n\n\n// Container that the modal scrolls within\n.modal {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: $zindex-modal;\n  display: none;\n  width: 100%;\n  height: 100%;\n  overflow-x: hidden;\n  overflow-y: auto;\n  // Prevent Chrome on Windows from adding a focus outline. For details, see\n  // https://github.com/twbs/bootstrap/pull/10951.\n  outline: 0;\n  // We deliberately don't use `-webkit-overflow-scrolling: touch;` due to a\n  // gnarly iOS Safari bug: https://bugs.webkit.org/show_bug.cgi?id=158342\n  // See also https://github.com/twbs/bootstrap/issues/17695\n}\n\n// Shell div to position the modal with bottom padding\n.modal-dialog {\n  position: relative;\n  width: auto;\n  margin: $modal-dialog-margin;\n  // allow clicks to pass through for custom click handling to close modal\n  pointer-events: none;\n\n  // When fading in the modal, animate it to slide down\n  .modal.fade & {\n    @include transition($modal-transition);\n    transform: $modal-fade-transform;\n  }\n  .modal.show & {\n    transform: $modal-show-transform;\n  }\n\n  // When trying to close, animate focus to scale\n  .modal.modal-static & {\n    transform: $modal-scale-transform;\n  }\n}\n\n.modal-dialog-scrollable {\n  height: subtract(100%, $modal-dialog-margin * 2);\n\n  .modal-content {\n    max-height: 100%;\n    overflow: hidden;\n  }\n\n  .modal-body {\n    overflow-y: auto;\n  }\n}\n\n.modal-dialog-centered {\n  display: flex;\n  align-items: center;\n  min-height: subtract(100%, $modal-dialog-margin * 2);\n}\n\n// Actual modal\n.modal-content {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  width: 100%; // Ensure `.modal-content` extends the full width of the parent `.modal-dialog`\n  // counteract the pointer-events: none; in the .modal-dialog\n  color: $modal-content-color;\n  pointer-events: auto;\n  background-color: $modal-content-bg;\n  background-clip: padding-box;\n  border: $modal-content-border-width solid $modal-content-border-color;\n  @include border-radius($modal-content-border-radius);\n  @include box-shadow($modal-content-box-shadow-xs);\n  // Remove focus outline from opened modal\n  outline: 0;\n}\n\n// Modal background\n.modal-backdrop {\n  @include overlay-backdrop($zindex-modal-backdrop, $modal-backdrop-bg, $modal-backdrop-opacity);\n}\n\n// Modal header\n// Top section of the modal w/ title and dismiss\n.modal-header {\n  display: flex;\n  flex-shrink: 0;\n  align-items: center;\n  justify-content: space-between; // Put modal header elements (title and dismiss) on opposite ends\n  padding: $modal-header-padding;\n  border-bottom: $modal-header-border-width solid $modal-header-border-color;\n  @include border-top-radius($modal-content-inner-border-radius);\n\n  .btn-close {\n    padding: ($modal-header-padding-y * .5) ($modal-header-padding-x * .5);\n    margin: ($modal-header-padding-y * -.5) ($modal-header-padding-x * -.5) ($modal-header-padding-y * -.5) auto;\n  }\n}\n\n// Title text within header\n.modal-title {\n  margin-bottom: 0;\n  line-height: $modal-title-line-height;\n}\n\n// Modal body\n// Where all modal content resides (sibling of .modal-header and .modal-footer)\n.modal-body {\n  position: relative;\n  // Enable `flex-grow: 1` so that the body take up as much space as possible\n  // when there should be a fixed height on `.modal-dialog`.\n  flex: 1 1 auto;\n  padding: $modal-inner-padding;\n}\n\n// Footer (for actions)\n.modal-footer {\n  display: flex;\n  flex-wrap: wrap;\n  flex-shrink: 0;\n  align-items: center; // vertically center\n  justify-content: flex-end; // Right align buttons with flex property because text-align doesn't work on flex items\n  padding: $modal-inner-padding - $modal-footer-margin-between * .5;\n  border-top: $modal-footer-border-width solid $modal-footer-border-color;\n  @include border-bottom-radius($modal-content-inner-border-radius);\n\n  // Place margin between footer elements\n  // This solution is far from ideal because of the universal selector usage,\n  // but is needed to fix https://github.com/twbs/bootstrap/issues/24800\n  > * {\n    margin: $modal-footer-margin-between * .5;\n  }\n}\n\n// Scale up the modal\n@include media-breakpoint-up(sm) {\n  // Automatically set modal's width for larger viewports\n  .modal-dialog {\n    max-width: $modal-md;\n    margin: $modal-dialog-margin-y-sm-up auto;\n  }\n\n  .modal-dialog-scrollable {\n    height: subtract(100%, $modal-dialog-margin-y-sm-up * 2);\n  }\n\n  .modal-dialog-centered {\n    min-height: subtract(100%, $modal-dialog-margin-y-sm-up * 2);\n  }\n\n  .modal-content {\n    @include box-shadow($modal-content-box-shadow-sm-up);\n  }\n\n  .modal-sm { max-width: $modal-sm; }\n}\n\n@include media-breakpoint-up(lg) {\n  .modal-lg,\n  .modal-xl {\n    max-width: $modal-lg;\n  }\n}\n\n@include media-breakpoint-up(xl) {\n  .modal-xl { max-width: $modal-xl; }\n}\n\n// scss-docs-start modal-fullscreen-loop\n@each $breakpoint in map-keys($grid-breakpoints) {\n  $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n  $postfix: if($infix != \"\", $infix + \"-down\", \"\");\n\n  @include media-breakpoint-down($breakpoint) {\n    .modal-fullscreen#{$postfix} {\n      width: 100vw;\n      max-width: none;\n      height: 100%;\n      margin: 0;\n\n      .modal-content {\n        height: 100%;\n        border: 0;\n        @include border-radius(0);\n      }\n\n      .modal-header {\n        @include border-radius(0);\n      }\n\n      .modal-body {\n        overflow-y: auto;\n      }\n\n      .modal-footer {\n        @include border-radius(0);\n      }\n    }\n  }\n}\n// scss-docs-end modal-fullscreen-loop\n","// Shared between modals and offcanvases\n@mixin overlay-backdrop($zindex, $backdrop-bg, $backdrop-opacity) {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: $zindex;\n  width: 100vw;\n  height: 100vh;\n  background-color: $backdrop-bg;\n\n  // Fade for backdrop\n  &.fade { opacity: 0; }\n  &.show { opacity: $backdrop-opacity; }\n}\n","// Base class\n.tooltip {\n  position: absolute;\n  z-index: $zindex-tooltip;\n  display: block;\n  margin: $tooltip-margin;\n  // Our parent element can be arbitrary since tooltips are by default inserted as a sibling of their target element.\n  // So reset our font and text properties to avoid inheriting weird values.\n  @include reset-text();\n  @include font-size($tooltip-font-size);\n  // Allow breaking very long words so they don't overflow the tooltip's bounds\n  word-wrap: break-word;\n  opacity: 0;\n\n  &.show { opacity: $tooltip-opacity; }\n\n  .tooltip-arrow {\n    position: absolute;\n    display: block;\n    width: $tooltip-arrow-width;\n    height: $tooltip-arrow-height;\n\n    &::before {\n      position: absolute;\n      content: \"\";\n      border-color: transparent;\n      border-style: solid;\n    }\n  }\n}\n\n.bs-tooltip-top {\n  padding: $tooltip-arrow-height 0;\n\n  .tooltip-arrow {\n    bottom: 0;\n\n    &::before {\n      top: -1px;\n      border-width: $tooltip-arrow-height ($tooltip-arrow-width * .5) 0;\n      border-top-color: $tooltip-arrow-color;\n    }\n  }\n}\n\n.bs-tooltip-end {\n  padding: 0 $tooltip-arrow-height;\n\n  .tooltip-arrow {\n    left: 0;\n    width: $tooltip-arrow-height;\n    height: $tooltip-arrow-width;\n\n    &::before {\n      right: -1px;\n      border-width: ($tooltip-arrow-width * .5) $tooltip-arrow-height ($tooltip-arrow-width * .5) 0;\n      border-right-color: $tooltip-arrow-color;\n    }\n  }\n}\n\n.bs-tooltip-bottom {\n  padding: $tooltip-arrow-height 0;\n\n  .tooltip-arrow {\n    top: 0;\n\n    &::before {\n      bottom: -1px;\n      border-width: 0 ($tooltip-arrow-width * .5) $tooltip-arrow-height;\n      border-bottom-color: $tooltip-arrow-color;\n    }\n  }\n}\n\n.bs-tooltip-start {\n  padding: 0 $tooltip-arrow-height;\n\n  .tooltip-arrow {\n    right: 0;\n    width: $tooltip-arrow-height;\n    height: $tooltip-arrow-width;\n\n    &::before {\n      left: -1px;\n      border-width: ($tooltip-arrow-width * .5) 0 ($tooltip-arrow-width * .5) $tooltip-arrow-height;\n      border-left-color: $tooltip-arrow-color;\n    }\n  }\n}\n\n.bs-tooltip-auto {\n  &[data-popper-placement^=\"top\"] {\n    @extend .bs-tooltip-top;\n  }\n  &[data-popper-placement^=\"right\"] {\n    @extend .bs-tooltip-end;\n  }\n  &[data-popper-placement^=\"bottom\"] {\n    @extend .bs-tooltip-bottom;\n  }\n  &[data-popper-placement^=\"left\"] {\n    @extend .bs-tooltip-start;\n  }\n}\n\n// Wrapper for the tooltip content\n.tooltip-inner {\n  max-width: $tooltip-max-width;\n  padding: $tooltip-padding-y $tooltip-padding-x;\n  color: $tooltip-color;\n  text-align: center;\n  background-color: $tooltip-bg;\n  @include border-radius($tooltip-border-radius);\n}\n","@mixin reset-text {\n  font-family: $font-family-base;\n  // We deliberately do NOT reset font-size or overflow-wrap / word-wrap.\n  font-style: normal;\n  font-weight: $font-weight-normal;\n  line-height: $line-height-base;\n  text-align: left; // Fallback for where `start` is not supported\n  text-align: start;\n  text-decoration: none;\n  text-shadow: none;\n  text-transform: none;\n  letter-spacing: normal;\n  word-break: normal;\n  word-spacing: normal;\n  white-space: normal;\n  line-break: auto;\n}\n",".popover {\n  position: absolute;\n  top: 0;\n  left: 0 #{\"/* rtl:ignore */\"};\n  z-index: $zindex-popover;\n  display: block;\n  max-width: $popover-max-width;\n  // Our parent element can be arbitrary since tooltips are by default inserted as a sibling of their target element.\n  // So reset our font and text properties to avoid inheriting weird values.\n  @include reset-text();\n  @include font-size($popover-font-size);\n  // Allow breaking very long words so they don't overflow the popover's bounds\n  word-wrap: break-word;\n  background-color: $popover-bg;\n  background-clip: padding-box;\n  border: $popover-border-width solid $popover-border-color;\n  @include border-radius($popover-border-radius);\n  @include box-shadow($popover-box-shadow);\n\n  .popover-arrow {\n    position: absolute;\n    display: block;\n    width: $popover-arrow-width;\n    height: $popover-arrow-height;\n\n    &::before,\n    &::after {\n      position: absolute;\n      display: block;\n      content: \"\";\n      border-color: transparent;\n      border-style: solid;\n    }\n  }\n}\n\n.bs-popover-top {\n  > .popover-arrow {\n    bottom: subtract(-$popover-arrow-height, $popover-border-width);\n\n    &::before {\n      bottom: 0;\n      border-width: $popover-arrow-height ($popover-arrow-width * .5) 0;\n      border-top-color: $popover-arrow-outer-color;\n    }\n\n    &::after {\n      bottom: $popover-border-width;\n      border-width: $popover-arrow-height ($popover-arrow-width * .5) 0;\n      border-top-color: $popover-arrow-color;\n    }\n  }\n}\n\n.bs-popover-end {\n  > .popover-arrow {\n    left: subtract(-$popover-arrow-height, $popover-border-width);\n    width: $popover-arrow-height;\n    height: $popover-arrow-width;\n\n    &::before {\n      left: 0;\n      border-width: ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5) 0;\n      border-right-color: $popover-arrow-outer-color;\n    }\n\n    &::after {\n      left: $popover-border-width;\n      border-width: ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5) 0;\n      border-right-color: $popover-arrow-color;\n    }\n  }\n}\n\n.bs-popover-bottom {\n  > .popover-arrow {\n    top: subtract(-$popover-arrow-height, $popover-border-width);\n\n    &::before {\n      top: 0;\n      border-width: 0 ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5);\n      border-bottom-color: $popover-arrow-outer-color;\n    }\n\n    &::after {\n      top: $popover-border-width;\n      border-width: 0 ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5);\n      border-bottom-color: $popover-arrow-color;\n    }\n  }\n\n  // This will remove the popover-header's border just below the arrow\n  .popover-header::before {\n    position: absolute;\n    top: 0;\n    left: 50%;\n    display: block;\n    width: $popover-arrow-width;\n    margin-left: -$popover-arrow-width * .5;\n    content: \"\";\n    border-bottom: $popover-border-width solid $popover-header-bg;\n  }\n}\n\n.bs-popover-start {\n  > .popover-arrow {\n    right: subtract(-$popover-arrow-height, $popover-border-width);\n    width: $popover-arrow-height;\n    height: $popover-arrow-width;\n\n    &::before {\n      right: 0;\n      border-width: ($popover-arrow-width * .5) 0 ($popover-arrow-width * .5) $popover-arrow-height;\n      border-left-color: $popover-arrow-outer-color;\n    }\n\n    &::after {\n      right: $popover-border-width;\n      border-width: ($popover-arrow-width * .5) 0 ($popover-arrow-width * .5) $popover-arrow-height;\n      border-left-color: $popover-arrow-color;\n    }\n  }\n}\n\n.bs-popover-auto {\n  &[data-popper-placement^=\"top\"] {\n    @extend .bs-popover-top;\n  }\n  &[data-popper-placement^=\"right\"] {\n    @extend .bs-popover-end;\n  }\n  &[data-popper-placement^=\"bottom\"] {\n    @extend .bs-popover-bottom;\n  }\n  &[data-popper-placement^=\"left\"] {\n    @extend .bs-popover-start;\n  }\n}\n\n// Offset the popover to account for the popover arrow\n.popover-header {\n  padding: $popover-header-padding-y $popover-header-padding-x;\n  margin-bottom: 0; // Reset the default from Reboot\n  @include font-size($font-size-base);\n  color: $popover-header-color;\n  background-color: $popover-header-bg;\n  border-bottom: $popover-border-width solid $popover-border-color;\n  @include border-top-radius($popover-inner-border-radius);\n\n  &:empty {\n    display: none;\n  }\n}\n\n.popover-body {\n  padding: $popover-body-padding-y $popover-body-padding-x;\n  color: $popover-body-color;\n}\n","// Notes on the classes:\n//\n// 1. .carousel.pointer-event should ideally be pan-y (to allow for users to scroll vertically)\n//    even when their scroll action started on a carousel, but for compatibility (with Firefox)\n//    we're preventing all actions instead\n// 2. The .carousel-item-start and .carousel-item-end is used to indicate where\n//    the active slide is heading.\n// 3. .active.carousel-item is the current slide.\n// 4. .active.carousel-item-start and .active.carousel-item-end is the current\n//    slide in its in-transition state. Only one of these occurs at a time.\n// 5. .carousel-item-next.carousel-item-start and .carousel-item-prev.carousel-item-end\n//    is the upcoming slide in transition.\n\n.carousel {\n  position: relative;\n}\n\n.carousel.pointer-event {\n  touch-action: pan-y;\n}\n\n.carousel-inner {\n  position: relative;\n  width: 100%;\n  overflow: hidden;\n  @include clearfix();\n}\n\n.carousel-item {\n  position: relative;\n  display: none;\n  float: left;\n  width: 100%;\n  margin-right: -100%;\n  backface-visibility: hidden;\n  @include transition($carousel-transition);\n}\n\n.carousel-item.active,\n.carousel-item-next,\n.carousel-item-prev {\n  display: block;\n}\n\n/* rtl:begin:ignore */\n.carousel-item-next:not(.carousel-item-start),\n.active.carousel-item-end {\n  transform: translateX(100%);\n}\n\n.carousel-item-prev:not(.carousel-item-end),\n.active.carousel-item-start {\n  transform: translateX(-100%);\n}\n\n/* rtl:end:ignore */\n\n\n//\n// Alternate transitions\n//\n\n.carousel-fade {\n  .carousel-item {\n    opacity: 0;\n    transition-property: opacity;\n    transform: none;\n  }\n\n  .carousel-item.active,\n  .carousel-item-next.carousel-item-start,\n  .carousel-item-prev.carousel-item-end {\n    z-index: 1;\n    opacity: 1;\n  }\n\n  .active.carousel-item-start,\n  .active.carousel-item-end {\n    z-index: 0;\n    opacity: 0;\n    @include transition(opacity 0s $carousel-transition-duration);\n  }\n}\n\n\n//\n// Left/right controls for nav\n//\n\n.carousel-control-prev,\n.carousel-control-next {\n  position: absolute;\n  top: 0;\n  bottom: 0;\n  z-index: 1;\n  // Use flex for alignment (1-3)\n  display: flex; // 1. allow flex styles\n  align-items: center; // 2. vertically center contents\n  justify-content: center; // 3. horizontally center contents\n  width: $carousel-control-width;\n  padding: 0;\n  color: $carousel-control-color;\n  text-align: center;\n  background: none;\n  border: 0;\n  opacity: $carousel-control-opacity;\n  @include transition($carousel-control-transition);\n\n  // Hover/focus state\n  &:hover,\n  &:focus {\n    color: $carousel-control-color;\n    text-decoration: none;\n    outline: 0;\n    opacity: $carousel-control-hover-opacity;\n  }\n}\n.carousel-control-prev {\n  left: 0;\n  background-image: if($enable-gradients, linear-gradient(90deg, rgba($black, .25), rgba($black, .001)), null);\n}\n.carousel-control-next {\n  right: 0;\n  background-image: if($enable-gradients, linear-gradient(270deg, rgba($black, .25), rgba($black, .001)), null);\n}\n\n// Icons for within\n.carousel-control-prev-icon,\n.carousel-control-next-icon {\n  display: inline-block;\n  width: $carousel-control-icon-width;\n  height: $carousel-control-icon-width;\n  background-repeat: no-repeat;\n  background-position: 50%;\n  background-size: 100% 100%;\n}\n\n/* rtl:options: {\n  \"autoRename\": true,\n  \"stringMap\":[ {\n    \"name\"    : \"prev-next\",\n    \"search\"  : \"prev\",\n    \"replace\" : \"next\"\n  } ]\n} */\n.carousel-control-prev-icon {\n  background-image: escape-svg($carousel-control-prev-icon-bg);\n}\n.carousel-control-next-icon {\n  background-image: escape-svg($carousel-control-next-icon-bg);\n}\n\n// Optional indicator pips/controls\n//\n// Add a container (such as a list) with the following class and add an item (ideally a focusable control,\n// like a button) with data-bs-target for each slide your carousel holds.\n\n.carousel-indicators {\n  position: absolute;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: 2;\n  display: flex;\n  justify-content: center;\n  padding: 0;\n  // Use the .carousel-control's width as margin so we don't overlay those\n  margin-right: $carousel-control-width;\n  margin-bottom: 1rem;\n  margin-left: $carousel-control-width;\n  list-style: none;\n\n  [data-bs-target] {\n    box-sizing: content-box;\n    flex: 0 1 auto;\n    width: $carousel-indicator-width;\n    height: $carousel-indicator-height;\n    padding: 0;\n    margin-right: $carousel-indicator-spacer;\n    margin-left: $carousel-indicator-spacer;\n    text-indent: -999px;\n    cursor: pointer;\n    background-color: $carousel-indicator-active-bg;\n    background-clip: padding-box;\n    border: 0;\n    // Use transparent borders to increase the hit area by 10px on top and bottom.\n    border-top: $carousel-indicator-hit-area-height solid transparent;\n    border-bottom: $carousel-indicator-hit-area-height solid transparent;\n    opacity: $carousel-indicator-opacity;\n    @include transition($carousel-indicator-transition);\n  }\n\n  .active {\n    opacity: $carousel-indicator-active-opacity;\n  }\n}\n\n\n// Optional captions\n//\n//\n\n.carousel-caption {\n  position: absolute;\n  right: (100% - $carousel-caption-width) * .5;\n  bottom: $carousel-caption-spacer;\n  left: (100% - $carousel-caption-width) * .5;\n  padding-top: $carousel-caption-padding-y;\n  padding-bottom: $carousel-caption-padding-y;\n  color: $carousel-caption-color;\n  text-align: center;\n}\n\n// Dark mode carousel\n\n.carousel-dark {\n  .carousel-control-prev-icon,\n  .carousel-control-next-icon {\n    filter: $carousel-dark-control-icon-filter;\n  }\n\n  .carousel-indicators [data-bs-target] {\n    background-color: $carousel-dark-indicator-active-bg;\n  }\n\n  .carousel-caption {\n    color: $carousel-dark-caption-color;\n  }\n}\n","// scss-docs-start clearfix\n@mixin clearfix() {\n  &::after {\n    display: block;\n    clear: both;\n    content: \"\";\n  }\n}\n// scss-docs-end clearfix\n","//\n// Rotating border\n//\n\n// scss-docs-start spinner-border-keyframes\n@keyframes spinner-border {\n  to { transform: rotate(360deg) #{\"/* rtl:ignore */\"}; }\n}\n// scss-docs-end spinner-border-keyframes\n\n.spinner-border {\n  display: inline-block;\n  width: $spinner-width;\n  height: $spinner-height;\n  vertical-align: $spinner-vertical-align;\n  border: $spinner-border-width solid currentColor;\n  border-right-color: transparent;\n  // stylelint-disable-next-line property-disallowed-list\n  border-radius: 50%;\n  animation: $spinner-animation-speed linear infinite spinner-border;\n}\n\n.spinner-border-sm {\n  width: $spinner-width-sm;\n  height: $spinner-height-sm;\n  border-width: $spinner-border-width-sm;\n}\n\n//\n// Growing circle\n//\n\n// scss-docs-start spinner-grow-keyframes\n@keyframes spinner-grow {\n  0% {\n    transform: scale(0);\n  }\n  50% {\n    opacity: 1;\n    transform: none;\n  }\n}\n// scss-docs-end spinner-grow-keyframes\n\n.spinner-grow {\n  display: inline-block;\n  width: $spinner-width;\n  height: $spinner-height;\n  vertical-align: $spinner-vertical-align;\n  background-color: currentColor;\n  // stylelint-disable-next-line property-disallowed-list\n  border-radius: 50%;\n  opacity: 0;\n  animation: $spinner-animation-speed linear infinite spinner-grow;\n}\n\n.spinner-grow-sm {\n  width: $spinner-width-sm;\n  height: $spinner-height-sm;\n}\n\n@if $enable-reduced-motion {\n  @media (prefers-reduced-motion: reduce) {\n    .spinner-border,\n    .spinner-grow {\n      animation-duration: $spinner-animation-speed * 2;\n    }\n  }\n}\n",".offcanvas {\n  position: fixed;\n  bottom: 0;\n  z-index: $zindex-offcanvas;\n  display: flex;\n  flex-direction: column;\n  max-width: 100%;\n  color: $offcanvas-color;\n  visibility: hidden;\n  background-color: $offcanvas-bg-color;\n  background-clip: padding-box;\n  outline: 0;\n  @include box-shadow($offcanvas-box-shadow);\n  @include transition(transform $offcanvas-transition-duration ease-in-out);\n}\n\n.offcanvas-backdrop {\n  @include overlay-backdrop($zindex-offcanvas-backdrop, $offcanvas-backdrop-bg, $offcanvas-backdrop-opacity);\n}\n\n.offcanvas-header {\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  padding: $offcanvas-padding-y $offcanvas-padding-x;\n\n  .btn-close {\n    padding: ($offcanvas-padding-y * .5) ($offcanvas-padding-x * .5);\n    margin-top: $offcanvas-padding-y * -.5;\n    margin-right: $offcanvas-padding-x * -.5;\n    margin-bottom: $offcanvas-padding-y * -.5;\n  }\n}\n\n.offcanvas-title {\n  margin-bottom: 0;\n  line-height: $offcanvas-title-line-height;\n}\n\n.offcanvas-body {\n  flex-grow: 1;\n  padding: $offcanvas-padding-y $offcanvas-padding-x;\n  overflow-y: auto;\n}\n\n.offcanvas-start {\n  top: 0;\n  left: 0;\n  width: $offcanvas-horizontal-width;\n  border-right: $offcanvas-border-width solid $offcanvas-border-color;\n  transform: translateX(-100%);\n}\n\n.offcanvas-end {\n  top: 0;\n  right: 0;\n  width: $offcanvas-horizontal-width;\n  border-left: $offcanvas-border-width solid $offcanvas-border-color;\n  transform: translateX(100%);\n}\n\n.offcanvas-top {\n  top: 0;\n  right: 0;\n  left: 0;\n  height: $offcanvas-vertical-height;\n  max-height: 100%;\n  border-bottom: $offcanvas-border-width solid $offcanvas-border-color;\n  transform: translateY(-100%);\n}\n\n.offcanvas-bottom {\n  right: 0;\n  left: 0;\n  height: $offcanvas-vertical-height;\n  max-height: 100%;\n  border-top: $offcanvas-border-width solid $offcanvas-border-color;\n  transform: translateY(100%);\n}\n\n.offcanvas.show {\n  transform: none;\n}\n",".placeholder {\n  display: inline-block;\n  min-height: 1em;\n  vertical-align: middle;\n  cursor: wait;\n  background-color: currentColor;\n  opacity: $placeholder-opacity-max;\n\n  &.btn::before {\n    display: inline-block;\n    content: \"\";\n  }\n}\n\n// Sizing\n.placeholder-xs {\n  min-height: .6em;\n}\n\n.placeholder-sm {\n  min-height: .8em;\n}\n\n.placeholder-lg {\n  min-height: 1.2em;\n}\n\n// Animation\n.placeholder-glow {\n  .placeholder {\n    animation: placeholder-glow 2s ease-in-out infinite;\n  }\n}\n\n@keyframes placeholder-glow {\n  50% {\n    opacity: $placeholder-opacity-min;\n  }\n}\n\n.placeholder-wave {\n  mask-image: linear-gradient(130deg, $black 55%, rgba(0, 0, 0, (1 - $placeholder-opacity-min)) 75%, $black 95%);\n  mask-size: 200% 100%;\n  animation: placeholder-wave 2s linear infinite;\n}\n\n@keyframes placeholder-wave {\n  100% {\n    mask-position: -200% 0%;\n  }\n}\n","@each $color, $value in $theme-colors {\n  .link-#{$color} {\n    color: $value;\n\n    @if $link-shade-percentage != 0 {\n      &:hover,\n      &:focus {\n        color: if(color-contrast($value) == $color-contrast-light, shade-color($value, $link-shade-percentage), tint-color($value, $link-shade-percentage));\n      }\n    }\n  }\n}\n","// Credit: Nicolas Gallagher and SUIT CSS.\n\n.ratio {\n  position: relative;\n  width: 100%;\n\n  &::before {\n    display: block;\n    padding-top: var(--#{$variable-prefix}aspect-ratio);\n    content: \"\";\n  }\n\n  > * {\n    position: absolute;\n    top: 0;\n    left: 0;\n    width: 100%;\n    height: 100%;\n  }\n}\n\n@each $key, $ratio in $aspect-ratios {\n  .ratio-#{$key} {\n    --#{$variable-prefix}aspect-ratio: #{$ratio};\n  }\n}\n","// Shorthand\n\n.fixed-top {\n  position: fixed;\n  top: 0;\n  right: 0;\n  left: 0;\n  z-index: $zindex-fixed;\n}\n\n.fixed-bottom {\n  position: fixed;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: $zindex-fixed;\n}\n\n// Responsive sticky top\n@each $breakpoint in map-keys($grid-breakpoints) {\n  @include media-breakpoint-up($breakpoint) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    .sticky#{$infix}-top {\n      position: sticky;\n      top: 0;\n      z-index: $zindex-sticky;\n    }\n  }\n}\n","// scss-docs-start stacks\n.hstack {\n  display: flex;\n  flex-direction: row;\n  align-items: center;\n  align-self: stretch;\n}\n\n.vstack {\n  display: flex;\n  flex: 1 1 auto;\n  flex-direction: column;\n  align-self: stretch;\n}\n// scss-docs-end stacks\n","//\n// Visually hidden\n//\n\n.visually-hidden,\n.visually-hidden-focusable:not(:focus):not(:focus-within) {\n  @include visually-hidden();\n}\n","// stylelint-disable declaration-no-important\n\n// Hide content visually while keeping it accessible to assistive technologies\n//\n// See: https://www.a11yproject.com/posts/2013-01-11-how-to-hide-content/\n// See: https://hugogiraudel.com/2016/10/13/css-hide-and-seek/\n\n@mixin visually-hidden() {\n  position: absolute !important;\n  width: 1px !important;\n  height: 1px !important;\n  padding: 0 !important;\n  margin: -1px !important; // Fix for https://github.com/twbs/bootstrap/issues/25686\n  overflow: hidden !important;\n  clip: rect(0, 0, 0, 0) !important;\n  white-space: nowrap !important;\n  border: 0 !important;\n}\n\n// Use to only display content when it's focused, or one of its child elements is focused\n// (i.e. when focus is within the element/container that the class was applied to)\n//\n// Useful for \"Skip to main content\" links; see https://www.w3.org/TR/2013/NOTE-WCAG20-TECHS-20130905/G1\n\n@mixin visually-hidden-focusable() {\n  &:not(:focus):not(:focus-within) {\n    @include visually-hidden();\n  }\n}\n","//\n// Stretched link\n//\n\n.stretched-link {\n  &::#{$stretched-link-pseudo-element} {\n    position: absolute;\n    top: 0;\n    right: 0;\n    bottom: 0;\n    left: 0;\n    z-index: $stretched-link-z-index;\n    content: \"\";\n  }\n}\n","//\n// Text truncation\n//\n\n.text-truncate {\n  @include text-truncate();\n}\n","// Text truncate\n// Requires inline-block or block for proper styling\n\n@mixin text-truncate() {\n  overflow: hidden;\n  text-overflow: ellipsis;\n  white-space: nowrap;\n}\n",".vr {\n  display: inline-block;\n  align-self: stretch;\n  width: 1px;\n  min-height: 1em;\n  background-color: currentColor;\n  opacity: $hr-opacity;\n}\n","// Utility generator\n// Used to generate utilities & print utilities\n@mixin generate-utility($utility, $infix, $is-rfs-media-query: false) {\n  $values: map-get($utility, values);\n\n  // If the values are a list or string, convert it into a map\n  @if type-of($values) == \"string\" or type-of(nth($values, 1)) != \"list\" {\n    $values: zip($values, $values);\n  }\n\n  @each $key, $value in $values {\n    $properties: map-get($utility, property);\n\n    // Multiple properties are possible, for example with vertical or horizontal margins or paddings\n    @if type-of($properties) == \"string\" {\n      $properties: append((), $properties);\n    }\n\n    // Use custom class if present\n    $property-class: if(map-has-key($utility, class), map-get($utility, class), nth($properties, 1));\n    $property-class: if($property-class == null, \"\", $property-class);\n\n    // State params to generate pseudo-classes\n    $state: if(map-has-key($utility, state), map-get($utility, state), ());\n\n    $infix: if($property-class == \"\" and str-slice($infix, 1, 1) == \"-\", str-slice($infix, 2), $infix);\n\n    // Don't prefix if value key is null (eg. with shadow class)\n    $property-class-modifier: if($key, if($property-class == \"\" and $infix == \"\", \"\", \"-\") + $key, \"\");\n\n    @if map-get($utility, rfs) {\n      // Inside the media query\n      @if $is-rfs-media-query {\n        $val: rfs-value($value);\n\n        // Do not render anything if fluid and non fluid values are the same\n        $value: if($val == rfs-fluid-value($value), null, $val);\n      }\n      @else {\n        $value: rfs-fluid-value($value);\n      }\n    }\n\n    $is-css-var: map-get($utility, css-var);\n    $is-local-vars: map-get($utility, local-vars);\n    $is-rtl: map-get($utility, rtl);\n\n    @if $value != null {\n      @if $is-rtl == false {\n        /* rtl:begin:remove */\n      }\n\n      @if $is-css-var {\n        .#{$property-class + $infix + $property-class-modifier} {\n          --#{$variable-prefix}#{$property-class}: #{$value};\n        }\n\n        @each $pseudo in $state {\n          .#{$property-class + $infix + $property-class-modifier}-#{$pseudo}:#{$pseudo} {\n            --#{$variable-prefix}#{$property-class}: #{$value};\n          }\n        }\n      } @else {\n        .#{$property-class + $infix + $property-class-modifier} {\n          @each $property in $properties {\n            @if $is-local-vars {\n              @each $local-var, $value in $is-local-vars {\n                --#{$variable-prefix}#{$local-var}: #{$value};\n              }\n            }\n            #{$property}: $value if($enable-important-utilities, !important, null);\n          }\n        }\n\n        @each $pseudo in $state {\n          .#{$property-class + $infix + $property-class-modifier}-#{$pseudo}:#{$pseudo} {\n            @each $property in $properties {\n              #{$property}: $value if($enable-important-utilities, !important, null);\n            }\n          }\n        }\n      }\n\n      @if $is-rtl == false {\n        /* rtl:end:remove */\n      }\n    }\n  }\n}\n","// Loop over each breakpoint\n@each $breakpoint in map-keys($grid-breakpoints) {\n\n  // Generate media query if needed\n  @include media-breakpoint-up($breakpoint) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    // Loop over each utility property\n    @each $key, $utility in $utilities {\n      // The utility can be disabled with `false`, thus check if the utility is a map first\n      // Only proceed if responsive media queries are enabled or if it's the base media query\n      @if type-of($utility) == \"map\" and (map-get($utility, responsive) or $infix == \"\") {\n        @include generate-utility($utility, $infix);\n      }\n    }\n  }\n}\n\n// RFS rescaling\n@media (min-width: $rfs-mq-value) {\n  @each $breakpoint in map-keys($grid-breakpoints) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    @if (map-get($grid-breakpoints, $breakpoint) < $rfs-breakpoint) {\n      // Loop over each utility property\n      @each $key, $utility in $utilities {\n        // The utility can be disabled with `false`, thus check if the utility is a map first\n        // Only proceed if responsive media queries are enabled or if it's the base media query\n        @if type-of($utility) == \"map\" and map-get($utility, rfs) and (map-get($utility, responsive) or $infix == \"\") {\n          @include generate-utility($utility, $infix, true);\n        }\n      }\n    }\n  }\n}\n\n\n// Print utilities\n@media print {\n  @each $key, $utility in $utilities {\n    // The utility can be disabled with `false`, thus check if the utility is a map first\n    // Then check if the utility needs print styles\n    @if type-of($utility) == \"map\" and map-get($utility, print) == true {\n      @include generate-utility($utility, \"-print\");\n    }\n  }\n}\n"]}
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/css/open-iconic/FONT-LICENSE b/Elements.Wasm/wwwroot/css/open-iconic/FONT-LICENSE
new file mode 100644
index 000000000..8ae8650d1
--- /dev/null
+++ b/Elements.Wasm/wwwroot/css/open-iconic/FONT-LICENSE
@@ -0,0 +1,86 @@
+SIL OPEN FONT LICENSE Version 1.1
+
+Copyright (c) 2014 Waybury
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/Elements.Wasm/wwwroot/css/open-iconic/ICON-LICENSE b/Elements.Wasm/wwwroot/css/open-iconic/ICON-LICENSE
new file mode 100644
index 000000000..af73356fa
--- /dev/null
+++ b/Elements.Wasm/wwwroot/css/open-iconic/ICON-LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Waybury
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/css/open-iconic/README.md b/Elements.Wasm/wwwroot/css/open-iconic/README.md
new file mode 100644
index 000000000..e2e831ed4
--- /dev/null
+++ b/Elements.Wasm/wwwroot/css/open-iconic/README.md
@@ -0,0 +1,114 @@
+[Open Iconic v1.1.1](http://useiconic.com/open)
+===========
+
+### Open Iconic is the open source sibling of [Iconic](http://useiconic.com). It is a hyper-legible collection of 223 icons with a tiny footprint&mdash;ready to use with Bootstrap and Foundation. [View the collection](http://useiconic.com/open#icons)
+
+
+
+## What's in Open Iconic?
+
+* 223 icons designed to be legible down to 8 pixels
+* Super-light SVG files - 61.8 for the entire set 
+* SVG sprite&mdash;the modern replacement for icon fonts
+* Webfont (EOT, OTF, SVG, TTF, WOFF), PNG and WebP formats
+* Webfont stylesheets (including versions for Bootstrap and Foundation) in CSS, LESS, SCSS and Stylus formats
+* PNG and WebP raster images in 8px, 16px, 24px, 32px, 48px and 64px.
+
+
+## Getting Started
+
+#### For code samples and everything else you need to get started with Open Iconic, check out our [Icons](http://useiconic.com/open#icons) and [Reference](http://useiconic.com/open#reference) sections.
+
+### General Usage
+
+#### Using Open Iconic's SVGs
+
+We like SVGs and we think they're the way to display icons on the web. Since Open Iconic are just basic SVGs, we suggest you display them like you would any other image (don't forget the `alt` attribute).
+
+```
+<img src="/open-iconic/svg/icon-name.svg" alt="icon name">
+```
+
+#### Using Open Iconic's SVG Sprite
+
+Open Iconic also comes in a SVG sprite which allows you to display all the icons in the set with a single request. It's like an icon font, without being a hack.
+
+Adding an icon from an SVG sprite is a little different than what you're used to, but it's still a piece of cake. *Tip: To make your icons easily style able, we suggest adding a general class to the* `<svg>` *tag and a unique class name for each different icon in the* `<use>` *tag.*  
+
+```
+<svg class="icon">
+  <use xlink:href="open-iconic.svg#account-login" class="icon-account-login"></use>
+</svg>
+```
+
+Sizing icons only needs basic CSS. All the icons are in a square format, so just set the `<svg>` tag with equal width and height dimensions.
+
+```
+.icon {
+  width: 16px;
+  height: 16px;
+}
+```
+
+Coloring icons is even easier. All you need to do is set the `fill` rule on the `<use>` tag.
+
+```
+.icon-account-login {
+  fill: #f00;
+}
+```
+
+To learn more about SVG Sprites, read [Chris Coyier's guide](http://css-tricks.com/svg-sprites-use-better-icon-fonts/).
+
+#### Using Open Iconic's Icon Font...
+
+
+##### …with Bootstrap
+
+You can find our Bootstrap stylesheets in `font/css/open-iconic-bootstrap.{css, less, scss, styl}`
+
+
+```
+<link href="/open-iconic/font/css/open-iconic-bootstrap.css" rel="stylesheet">
+```
+
+
+```
+<span class="oi oi-icon-name" title="icon name" aria-hidden="true"></span>
+```
+
+##### …with Foundation
+
+You can find our Foundation stylesheets in `font/css/open-iconic-foundation.{css, less, scss, styl}`
+
+```
+<link href="/open-iconic/font/css/open-iconic-foundation.css" rel="stylesheet">
+```
+
+
+```
+<span class="fi-icon-name" title="icon name" aria-hidden="true"></span>
+```
+
+##### …on its own
+
+You can find our default stylesheets in `font/css/open-iconic.{css, less, scss, styl}`
+
+```
+<link href="/open-iconic/font/css/open-iconic.css" rel="stylesheet">
+```
+
+```
+<span class="oi" data-glyph="icon-name" title="icon name" aria-hidden="true"></span>
+```
+
+
+## License
+
+### Icons
+
+All code (including SVG markup) is under the [MIT License](http://opensource.org/licenses/MIT).
+
+### Fonts
+
+All fonts are under the [SIL Licensed](http://scripts.sil.org/cms/scripts/page.php?item_id=OFL_web).
diff --git a/Elements.Wasm/wwwroot/css/open-iconic/font/css/open-iconic-bootstrap.min.css b/Elements.Wasm/wwwroot/css/open-iconic/font/css/open-iconic-bootstrap.min.css
new file mode 100644
index 000000000..4664f2e8c
--- /dev/null
+++ b/Elements.Wasm/wwwroot/css/open-iconic/font/css/open-iconic-bootstrap.min.css
@@ -0,0 +1 @@
+@font-face{font-family:Icons;src:url(../fonts/open-iconic.eot);src:url(../fonts/open-iconic.eot?#iconic-sm) format('embedded-opentype'),url(../fonts/open-iconic.woff) format('woff'),url(../fonts/open-iconic.ttf) format('truetype'),url(../fonts/open-iconic.otf) format('opentype'),url(../fonts/open-iconic.svg#iconic-sm) format('svg');font-weight:400;font-style:normal}.oi{position:relative;top:1px;display:inline-block;speak:none;font-family:Icons;font-style:normal;font-weight:400;line-height:1;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.oi:empty:before{width:1em;text-align:center;box-sizing:content-box}.oi.oi-align-center:before{text-align:center}.oi.oi-align-left:before{text-align:left}.oi.oi-align-right:before{text-align:right}.oi.oi-flip-horizontal:before{-webkit-transform:scale(-1,1);-ms-transform:scale(-1,1);transform:scale(-1,1)}.oi.oi-flip-vertical:before{-webkit-transform:scale(1,-1);-ms-transform:scale(-1,1);transform:scale(1,-1)}.oi.oi-flip-horizontal-vertical:before{-webkit-transform:scale(-1,-1);-ms-transform:scale(-1,1);transform:scale(-1,-1)}.oi-account-login:before{content:'\e000'}.oi-account-logout:before{content:'\e001'}.oi-action-redo:before{content:'\e002'}.oi-action-undo:before{content:'\e003'}.oi-align-center:before{content:'\e004'}.oi-align-left:before{content:'\e005'}.oi-align-right:before{content:'\e006'}.oi-aperture:before{content:'\e007'}.oi-arrow-bottom:before{content:'\e008'}.oi-arrow-circle-bottom:before{content:'\e009'}.oi-arrow-circle-left:before{content:'\e00a'}.oi-arrow-circle-right:before{content:'\e00b'}.oi-arrow-circle-top:before{content:'\e00c'}.oi-arrow-left:before{content:'\e00d'}.oi-arrow-right:before{content:'\e00e'}.oi-arrow-thick-bottom:before{content:'\e00f'}.oi-arrow-thick-left:before{content:'\e010'}.oi-arrow-thick-right:before{content:'\e011'}.oi-arrow-thick-top:before{content:'\e012'}.oi-arrow-top:before{content:'\e013'}.oi-audio-spectrum:before{content:'\e014'}.oi-audio:before{content:'\e015'}.oi-badge:before{content:'\e016'}.oi-ban:before{content:'\e017'}.oi-bar-chart:before{content:'\e018'}.oi-basket:before{content:'\e019'}.oi-battery-empty:before{content:'\e01a'}.oi-battery-full:before{content:'\e01b'}.oi-beaker:before{content:'\e01c'}.oi-bell:before{content:'\e01d'}.oi-bluetooth:before{content:'\e01e'}.oi-bold:before{content:'\e01f'}.oi-bolt:before{content:'\e020'}.oi-book:before{content:'\e021'}.oi-bookmark:before{content:'\e022'}.oi-box:before{content:'\e023'}.oi-briefcase:before{content:'\e024'}.oi-british-pound:before{content:'\e025'}.oi-browser:before{content:'\e026'}.oi-brush:before{content:'\e027'}.oi-bug:before{content:'\e028'}.oi-bullhorn:before{content:'\e029'}.oi-calculator:before{content:'\e02a'}.oi-calendar:before{content:'\e02b'}.oi-camera-slr:before{content:'\e02c'}.oi-caret-bottom:before{content:'\e02d'}.oi-caret-left:before{content:'\e02e'}.oi-caret-right:before{content:'\e02f'}.oi-caret-top:before{content:'\e030'}.oi-cart:before{content:'\e031'}.oi-chat:before{content:'\e032'}.oi-check:before{content:'\e033'}.oi-chevron-bottom:before{content:'\e034'}.oi-chevron-left:before{content:'\e035'}.oi-chevron-right:before{content:'\e036'}.oi-chevron-top:before{content:'\e037'}.oi-circle-check:before{content:'\e038'}.oi-circle-x:before{content:'\e039'}.oi-clipboard:before{content:'\e03a'}.oi-clock:before{content:'\e03b'}.oi-cloud-download:before{content:'\e03c'}.oi-cloud-upload:before{content:'\e03d'}.oi-cloud:before{content:'\e03e'}.oi-cloudy:before{content:'\e03f'}.oi-code:before{content:'\e040'}.oi-cog:before{content:'\e041'}.oi-collapse-down:before{content:'\e042'}.oi-collapse-left:before{content:'\e043'}.oi-collapse-right:before{content:'\e044'}.oi-collapse-up:before{content:'\e045'}.oi-command:before{content:'\e046'}.oi-comment-square:before{content:'\e047'}.oi-compass:before{content:'\e048'}.oi-contrast:before{content:'\e049'}.oi-copywriting:before{content:'\e04a'}.oi-credit-card:before{content:'\e04b'}.oi-crop:before{content:'\e04c'}.oi-dashboard:before{content:'\e04d'}.oi-data-transfer-download:before{content:'\e04e'}.oi-data-transfer-upload:before{content:'\e04f'}.oi-delete:before{content:'\e050'}.oi-dial:before{content:'\e051'}.oi-document:before{content:'\e052'}.oi-dollar:before{content:'\e053'}.oi-double-quote-sans-left:before{content:'\e054'}.oi-double-quote-sans-right:before{content:'\e055'}.oi-double-quote-serif-left:before{content:'\e056'}.oi-double-quote-serif-right:before{content:'\e057'}.oi-droplet:before{content:'\e058'}.oi-eject:before{content:'\e059'}.oi-elevator:before{content:'\e05a'}.oi-ellipses:before{content:'\e05b'}.oi-envelope-closed:before{content:'\e05c'}.oi-envelope-open:before{content:'\e05d'}.oi-euro:before{content:'\e05e'}.oi-excerpt:before{content:'\e05f'}.oi-expand-down:before{content:'\e060'}.oi-expand-left:before{content:'\e061'}.oi-expand-right:before{content:'\e062'}.oi-expand-up:before{content:'\e063'}.oi-external-link:before{content:'\e064'}.oi-eye:before{content:'\e065'}.oi-eyedropper:before{content:'\e066'}.oi-file:before{content:'\e067'}.oi-fire:before{content:'\e068'}.oi-flag:before{content:'\e069'}.oi-flash:before{content:'\e06a'}.oi-folder:before{content:'\e06b'}.oi-fork:before{content:'\e06c'}.oi-fullscreen-enter:before{content:'\e06d'}.oi-fullscreen-exit:before{content:'\e06e'}.oi-globe:before{content:'\e06f'}.oi-graph:before{content:'\e070'}.oi-grid-four-up:before{content:'\e071'}.oi-grid-three-up:before{content:'\e072'}.oi-grid-two-up:before{content:'\e073'}.oi-hard-drive:before{content:'\e074'}.oi-header:before{content:'\e075'}.oi-headphones:before{content:'\e076'}.oi-heart:before{content:'\e077'}.oi-home:before{content:'\e078'}.oi-image:before{content:'\e079'}.oi-inbox:before{content:'\e07a'}.oi-infinity:before{content:'\e07b'}.oi-info:before{content:'\e07c'}.oi-italic:before{content:'\e07d'}.oi-justify-center:before{content:'\e07e'}.oi-justify-left:before{content:'\e07f'}.oi-justify-right:before{content:'\e080'}.oi-key:before{content:'\e081'}.oi-laptop:before{content:'\e082'}.oi-layers:before{content:'\e083'}.oi-lightbulb:before{content:'\e084'}.oi-link-broken:before{content:'\e085'}.oi-link-intact:before{content:'\e086'}.oi-list-rich:before{content:'\e087'}.oi-list:before{content:'\e088'}.oi-location:before{content:'\e089'}.oi-lock-locked:before{content:'\e08a'}.oi-lock-unlocked:before{content:'\e08b'}.oi-loop-circular:before{content:'\e08c'}.oi-loop-square:before{content:'\e08d'}.oi-loop:before{content:'\e08e'}.oi-magnifying-glass:before{content:'\e08f'}.oi-map-marker:before{content:'\e090'}.oi-map:before{content:'\e091'}.oi-media-pause:before{content:'\e092'}.oi-media-play:before{content:'\e093'}.oi-media-record:before{content:'\e094'}.oi-media-skip-backward:before{content:'\e095'}.oi-media-skip-forward:before{content:'\e096'}.oi-media-step-backward:before{content:'\e097'}.oi-media-step-forward:before{content:'\e098'}.oi-media-stop:before{content:'\e099'}.oi-medical-cross:before{content:'\e09a'}.oi-menu:before{content:'\e09b'}.oi-microphone:before{content:'\e09c'}.oi-minus:before{content:'\e09d'}.oi-monitor:before{content:'\e09e'}.oi-moon:before{content:'\e09f'}.oi-move:before{content:'\e0a0'}.oi-musical-note:before{content:'\e0a1'}.oi-paperclip:before{content:'\e0a2'}.oi-pencil:before{content:'\e0a3'}.oi-people:before{content:'\e0a4'}.oi-person:before{content:'\e0a5'}.oi-phone:before{content:'\e0a6'}.oi-pie-chart:before{content:'\e0a7'}.oi-pin:before{content:'\e0a8'}.oi-play-circle:before{content:'\e0a9'}.oi-plus:before{content:'\e0aa'}.oi-power-standby:before{content:'\e0ab'}.oi-print:before{content:'\e0ac'}.oi-project:before{content:'\e0ad'}.oi-pulse:before{content:'\e0ae'}.oi-puzzle-piece:before{content:'\e0af'}.oi-question-mark:before{content:'\e0b0'}.oi-rain:before{content:'\e0b1'}.oi-random:before{content:'\e0b2'}.oi-reload:before{content:'\e0b3'}.oi-resize-both:before{content:'\e0b4'}.oi-resize-height:before{content:'\e0b5'}.oi-resize-width:before{content:'\e0b6'}.oi-rss-alt:before{content:'\e0b7'}.oi-rss:before{content:'\e0b8'}.oi-script:before{content:'\e0b9'}.oi-share-boxed:before{content:'\e0ba'}.oi-share:before{content:'\e0bb'}.oi-shield:before{content:'\e0bc'}.oi-signal:before{content:'\e0bd'}.oi-signpost:before{content:'\e0be'}.oi-sort-ascending:before{content:'\e0bf'}.oi-sort-descending:before{content:'\e0c0'}.oi-spreadsheet:before{content:'\e0c1'}.oi-star:before{content:'\e0c2'}.oi-sun:before{content:'\e0c3'}.oi-tablet:before{content:'\e0c4'}.oi-tag:before{content:'\e0c5'}.oi-tags:before{content:'\e0c6'}.oi-target:before{content:'\e0c7'}.oi-task:before{content:'\e0c8'}.oi-terminal:before{content:'\e0c9'}.oi-text:before{content:'\e0ca'}.oi-thumb-down:before{content:'\e0cb'}.oi-thumb-up:before{content:'\e0cc'}.oi-timer:before{content:'\e0cd'}.oi-transfer:before{content:'\e0ce'}.oi-trash:before{content:'\e0cf'}.oi-underline:before{content:'\e0d0'}.oi-vertical-align-bottom:before{content:'\e0d1'}.oi-vertical-align-center:before{content:'\e0d2'}.oi-vertical-align-top:before{content:'\e0d3'}.oi-video:before{content:'\e0d4'}.oi-volume-high:before{content:'\e0d5'}.oi-volume-low:before{content:'\e0d6'}.oi-volume-off:before{content:'\e0d7'}.oi-warning:before{content:'\e0d8'}.oi-wifi:before{content:'\e0d9'}.oi-wrench:before{content:'\e0da'}.oi-x:before{content:'\e0db'}.oi-yen:before{content:'\e0dc'}.oi-zoom-in:before{content:'\e0dd'}.oi-zoom-out:before{content:'\e0de'}
\ No newline at end of file
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diff --git a/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.otf b/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.otf
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diff --git a/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.svg b/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.svg
new file mode 100644
index 000000000..cf4294282
--- /dev/null
+++ b/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.svg
@@ -0,0 +1,543 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
+<!--
+2014-7-1: Created.
+-->
+<svg xmlns="http://www.w3.org/2000/svg">
+<metadata>
+Created by FontForge 20120731 at Tue Jul  1 20:39:22 2014
+ By P.J. Onori
+Created by P.J. Onori with FontForge 2.0 (http://fontforge.sf.net)
+</metadata>
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new file mode 100644
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diff --git a/Elements.Wasm/wwwroot/icon-192.png b/Elements.Wasm/wwwroot/icon-192.png
new file mode 100644
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GIT binary patch
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HcmV?d00001

diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
new file mode 100644
index 000000000..991d3e53b
--- /dev/null
+++ b/Elements.Wasm/wwwroot/index.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <title>Elements.Wasm</title>
+    <base href="/" />
+    <link href="css/bootstrap/bootstrap.min.css" rel="stylesheet" />
+    <link href="css/app.css" rel="stylesheet" />
+    <link href="Elements.Wasm.styles.css" rel="stylesheet" />
+</head>
+
+<body>
+    <div id="app">Loading...</div>
+
+    <div id="blazor-error-ui">
+        An unhandled error has occurred.
+        <a href="" class="reload">Reload</a>
+        <a class="dismiss">🗙</a>
+    </div>
+    <script src="_framework/blazor.webassembly.js"></script>
+</body>
+
+</html>
diff --git a/Elements.Wasm/wwwroot/sample-data/weather.json b/Elements.Wasm/wwwroot/sample-data/weather.json
new file mode 100644
index 000000000..816fdee84
--- /dev/null
+++ b/Elements.Wasm/wwwroot/sample-data/weather.json
@@ -0,0 +1,27 @@
+[
+  {
+    "date": "2018-05-06",
+    "temperatureC": 1,
+    "summary": "Freezing"
+  },
+  {
+    "date": "2018-05-07",
+    "temperatureC": 14,
+    "summary": "Bracing"
+  },
+  {
+    "date": "2018-05-08",
+    "temperatureC": -13,
+    "summary": "Freezing"
+  },
+  {
+    "date": "2018-05-09",
+    "temperatureC": -16,
+    "summary": "Balmy"
+  },
+  {
+    "date": "2018-05-10",
+    "temperatureC": -2,
+    "summary": "Chilly"
+  }
+]

From 477c3cd44d9c10c015780cda88d6d086ca1c3149 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 16 Feb 2022 22:26:32 -0800
Subject: [PATCH 003/150] Add a readme.

---
 Elements.Wasm/README.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 Elements.Wasm/README.md

diff --git a/Elements.Wasm/README.md b/Elements.Wasm/README.md
new file mode 100644
index 000000000..dd0d6e169
--- /dev/null
+++ b/Elements.Wasm/README.md
@@ -0,0 +1,15 @@
+# Elements.Wasm
+This is a minimal web assembly project.
+
+### Run
+`dotnet watch run`
+
+### Publish
+`dotnet publish -c release`
+
+### Files
+`Elements.js`
+- The javascript elements API. Elements is made available on the window object.
+
+`ElementsAPI.cs`
+- A wrapper around .net elements that is called by the javascript API.
\ No newline at end of file

From 962878ec26baf182fbea47a6e27ad1c87a65ac57 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 16 Feb 2022 22:26:50 -0800
Subject: [PATCH 004/150] Delete unused line.

---
 Elements/src/Serialization/glTF/GltfExtensions.cs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Elements/src/Serialization/glTF/GltfExtensions.cs b/Elements/src/Serialization/glTF/GltfExtensions.cs
index 8d8f51989..c73be45b6 100644
--- a/Elements/src/Serialization/glTF/GltfExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfExtensions.cs
@@ -149,7 +149,6 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
         /// <returns>A Base64 string representing the model.</returns>
         public static string ToBase64String(this Model model, bool drawEdges = false, bool mergeVertices = false)
         {
-            var tmp = Path.GetTempFileName();
             var gltf = InitializeGlTF(model, out var buffers, out _, drawEdges, mergeVertices);
             if (gltf == null)
             {

From 7fd299894e4fddb29380f4e90b43441fc218f063 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 16 Feb 2022 22:27:30 -0800
Subject: [PATCH 005/150] More clean up of the API.

---
 Elements.Wasm/Elements.Wasm.csproj   |  3 ++-
 Elements.Wasm/ElementsWrapper.cs     | 23 +++++++++++++++++++++++
 Elements.Wasm/Program.cs             |  2 --
 Elements.Wasm/wwwroot/js/Elements.js | 11 +++++++++++
 4 files changed, 36 insertions(+), 3 deletions(-)
 create mode 100644 Elements.Wasm/ElementsWrapper.cs
 create mode 100644 Elements.Wasm/wwwroot/js/Elements.js

diff --git a/Elements.Wasm/Elements.Wasm.csproj b/Elements.Wasm/Elements.Wasm.csproj
index 00da8e19b..2eb96ea09 100644
--- a/Elements.Wasm/Elements.Wasm.csproj
+++ b/Elements.Wasm/Elements.Wasm.csproj
@@ -4,7 +4,8 @@
     <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
-    <RunAOTCompilation>true</RunAOTCompilation>
+    <!-- <RunAOTCompilation>true</RunAOTCompilation> -->
+    <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Elements.Wasm/ElementsWrapper.cs b/Elements.Wasm/ElementsWrapper.cs
new file mode 100644
index 000000000..53616ab41
--- /dev/null
+++ b/Elements.Wasm/ElementsWrapper.cs
@@ -0,0 +1,23 @@
+using System.Linq;
+using System.Threading.Tasks;
+using Elements;
+using Elements.Geometry;
+using Elements.Serialization.glTF;
+using Elements.Spatial;
+using Microsoft.JSInterop;
+
+public static class ElementsAPI
+{
+    [JSInvokable]
+    public static Model ModelFromJson(string json)
+    {
+        return Model.FromJson(json, out _, false);
+    }
+
+    [JSInvokable]
+    public static string ModelToGlb(string json)
+    {
+        var model = Model.FromJson(json, out _, false);
+        return model.ToBase64String();
+    }
+}
diff --git a/Elements.Wasm/Program.cs b/Elements.Wasm/Program.cs
index 4749d1339..e4f5e1426 100644
--- a/Elements.Wasm/Program.cs
+++ b/Elements.Wasm/Program.cs
@@ -3,8 +3,6 @@
 using Elements.Wasm;
 
 var builder = WebAssemblyHostBuilder.CreateDefault(args);
-// builder.RootComponents.Add<App>("#app");
-// builder.RootComponents.Add<HeadOutlet>("head::after");
 
 builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
 
diff --git a/Elements.Wasm/wwwroot/js/Elements.js b/Elements.Wasm/wwwroot/js/Elements.js
new file mode 100644
index 000000000..9c9d3dedb
--- /dev/null
+++ b/Elements.Wasm/wwwroot/js/Elements.js
@@ -0,0 +1,11 @@
+class Elements {
+    async modelFromJson(json) {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelFromJson', json)
+    }
+
+    async modelToGlb(json) {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlb', json)
+    }
+}
+
+window.elements = new Elements();
\ No newline at end of file

From b66378242949ea421f99cf174a3a5981757acc0c Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 16 Feb 2022 22:27:44 -0800
Subject: [PATCH 006/150] Clean up the index.

---
 Elements.Wasm/wwwroot/index.html | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index 991d3e53b..c00c639cd 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -6,20 +6,11 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
     <title>Elements.Wasm</title>
     <base href="/" />
-    <link href="css/bootstrap/bootstrap.min.css" rel="stylesheet" />
-    <link href="css/app.css" rel="stylesheet" />
-    <link href="Elements.Wasm.styles.css" rel="stylesheet" />
 </head>
 
 <body>
-    <div id="app">Loading...</div>
-
-    <div id="blazor-error-ui">
-        An unhandled error has occurred.
-        <a href="" class="reload">Reload</a>
-        <a class="dismiss">🗙</a>
-    </div>
+    <script type="module" src="js/Elements.js"></script>
     <script src="_framework/blazor.webassembly.js"></script>
 </body>
 
-</html>
+</html>
\ No newline at end of file

From 46ef3486313f4da0d0dbf62c0efcc4ca270ccf1a Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 16 Feb 2022 22:28:53 -0800
Subject: [PATCH 007/150] Removing more stuff we don't need.

---
 Elements.Wasm/App.razor                       |  12 -
 Elements.Wasm/wwwroot/css/app.css             |  64 ---
 .../wwwroot/css/bootstrap/bootstrap.min.css   |   7 -
 .../css/bootstrap/bootstrap.min.css.map       |   1 -
 .../wwwroot/css/open-iconic/FONT-LICENSE      |  86 ---
 .../wwwroot/css/open-iconic/ICON-LICENSE      |  21 -
 .../wwwroot/css/open-iconic/README.md         | 114 ----
 .../font/css/open-iconic-bootstrap.min.css    |   1 -
 .../open-iconic/font/fonts/open-iconic.eot    | Bin 28196 -> 0 bytes
 .../open-iconic/font/fonts/open-iconic.otf    | Bin 20996 -> 0 bytes
 .../open-iconic/font/fonts/open-iconic.svg    | 543 ------------------
 .../open-iconic/font/fonts/open-iconic.ttf    | Bin 28028 -> 0 bytes
 .../open-iconic/font/fonts/open-iconic.woff   | Bin 14984 -> 0 bytes
 Elements.Wasm/wwwroot/favicon.ico             | Bin 5430 -> 0 bytes
 Elements.Wasm/wwwroot/icon-192.png            | Bin 2626 -> 0 bytes
 .../wwwroot/sample-data/weather.json          |  27 -
 16 files changed, 876 deletions(-)
 delete mode 100644 Elements.Wasm/App.razor
 delete mode 100644 Elements.Wasm/wwwroot/css/app.css
 delete mode 100644 Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css
 delete mode 100644 Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css.map
 delete mode 100644 Elements.Wasm/wwwroot/css/open-iconic/FONT-LICENSE
 delete mode 100644 Elements.Wasm/wwwroot/css/open-iconic/ICON-LICENSE
 delete mode 100644 Elements.Wasm/wwwroot/css/open-iconic/README.md
 delete mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/css/open-iconic-bootstrap.min.css
 delete mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.eot
 delete mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.otf
 delete mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.svg
 delete mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.ttf
 delete mode 100644 Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.woff
 delete mode 100644 Elements.Wasm/wwwroot/favicon.ico
 delete mode 100644 Elements.Wasm/wwwroot/icon-192.png
 delete mode 100644 Elements.Wasm/wwwroot/sample-data/weather.json

diff --git a/Elements.Wasm/App.razor b/Elements.Wasm/App.razor
deleted file mode 100644
index 623580d09..000000000
--- a/Elements.Wasm/App.razor
+++ /dev/null
@@ -1,12 +0,0 @@
-<Router AppAssembly="@typeof(App).Assembly">
-    <Found Context="routeData">
-        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
-        <FocusOnNavigate RouteData="@routeData" Selector="h1" />
-    </Found>
-    <NotFound>
-        <PageTitle>Not found</PageTitle>
-        <LayoutView Layout="@typeof(MainLayout)">
-            <p role="alert">Sorry, there's nothing at this address.</p>
-        </LayoutView>
-    </NotFound>
-</Router>
diff --git a/Elements.Wasm/wwwroot/css/app.css b/Elements.Wasm/wwwroot/css/app.css
deleted file mode 100644
index 7157ee8f4..000000000
--- a/Elements.Wasm/wwwroot/css/app.css
+++ /dev/null
@@ -1,64 +0,0 @@
-@import url('open-iconic/font/css/open-iconic-bootstrap.min.css');
-
-html, body {
-    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
-}
-
-h1:focus {
-    outline: none;
-}
-
-a, .btn-link {
-    color: #0071c1;
-}
-
-.btn-primary {
-    color: #fff;
-    background-color: #1b6ec2;
-    border-color: #1861ac;
-}
-
-.content {
-    padding-top: 1.1rem;
-}
-
-.valid.modified:not([type=checkbox]) {
-    outline: 1px solid #26b050;
-}
-
-.invalid {
-    outline: 1px solid red;
-}
-
-.validation-message {
-    color: red;
-}
-
-#blazor-error-ui {
-    background: lightyellow;
-    bottom: 0;
-    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
-    display: none;
-    left: 0;
-    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
-    position: fixed;
-    width: 100%;
-    z-index: 1000;
-}
-
-    #blazor-error-ui .dismiss {
-        cursor: pointer;
-        position: absolute;
-        right: 0.75rem;
-        top: 0.5rem;
-    }
-
-.blazor-error-boundary {
-    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
-    padding: 1rem 1rem 1rem 3.7rem;
-    color: white;
-}
-
-    .blazor-error-boundary::after {
-        content: "An error has occurred."
-    }
diff --git a/Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css b/Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css
deleted file mode 100644
index 02ae65b5f..000000000
--- a/Elements.Wasm/wwwroot/css/bootstrap/bootstrap.min.css
+++ /dev/null
@@ -1,7 +0,0 @@
-@charset "UTF-8";/*!
- * Bootstrap v5.1.0 (https://getbootstrap.com/)
- * Copyright 2011-2021 The Bootstrap Authors
- * Copyright 2011-2021 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
- */:root{--bs-blue:#0d6efd;--bs-indigo:#6610f2;--bs-purple:#6f42c1;--bs-pink:#d63384;--bs-red:#dc3545;--bs-orange:#fd7e14;--bs-yellow:#ffc107;--bs-green:#198754;--bs-teal:#20c997;--bs-cyan:#0dcaf0;--bs-white:#fff;--bs-gray:#6c757d;--bs-gray-dark:#343a40;--bs-gray-100:#f8f9fa;--bs-gray-200:#e9ecef;--bs-gray-300:#dee2e6;--bs-gray-400:#ced4da;--bs-gray-500:#adb5bd;--bs-gray-600:#6c757d;--bs-gray-700:#495057;--bs-gray-800:#343a40;--bs-gray-900:#212529;--bs-primary:#0d6efd;--bs-secondary:#6c757d;--bs-success:#198754;--bs-info:#0dcaf0;--bs-warning:#ffc107;--bs-danger:#dc3545;--bs-light:#f8f9fa;--bs-dark:#212529;--bs-primary-rgb:13,110,253;--bs-secondary-rgb:108,117,125;--bs-success-rgb:25,135,84;--bs-info-rgb:13,202,240;--bs-warning-rgb:255,193,7;--bs-danger-rgb:220,53,69;--bs-light-rgb:248,249,250;--bs-dark-rgb:33,37,41;--bs-white-rgb:255,255,255;--bs-black-rgb:0,0,0;--bs-body-rgb:33,37,41;--bs-font-sans-serif:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--bs-font-monospace:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--bs-gradient:linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0));--bs-body-font-family:var(--bs-font-sans-serif);--bs-body-font-size:1rem;--bs-body-font-weight:400;--bs-body-line-height:1.5;--bs-body-color:#212529;--bs-body-bg:#fff}*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:var(--bs-body-font-family);font-size:var(--bs-body-font-size);font-weight:var(--bs-body-font-weight);line-height:var(--bs-body-line-height);color:var(--bs-body-color);text-align:var(--bs-body-text-align);background-color:var(--bs-body-bg);-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}.h1,.h2,.h3,.h4,.h5,.h6,h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}.h1,h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){.h1,h1{font-size:2.5rem}}.h2,h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){.h2,h2{font-size:2rem}}.h3,h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){.h3,h3{font-size:1.75rem}}.h4,h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){.h4,h4{font-size:1.5rem}}.h5,h5{font-size:1.25rem}.h6,h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}.small,small{font-size:.875em}.mark,mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:var(--bs-font-monospace);font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}.lead{font-size:1.25rem;font-weight:300}.display-1{font-size:calc(1.625rem + 4.5vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-1{font-size:5rem}}.display-2{font-size:calc(1.575rem + 3.9vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-2{font-size:4.5rem}}.display-3{font-size:calc(1.525rem + 3.3vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-3{font-size:4rem}}.display-4{font-size:calc(1.475rem + 2.7vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-4{font-size:3.5rem}}.display-5{font-size:calc(1.425rem + 2.1vw);font-weight:300;line-height:1.2}@media (min-width:1200px){.display-5{font-size:3rem}}.display-6{font-size:calc(1.375rem + 1.5vw);font-weight:300;line-height:1.2}@media 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However, we also reset the\n// bottom margin to use `rem` units instead of `em`.\n\np {\n  margin-top: 0;\n  margin-bottom: $paragraph-margin-bottom;\n}\n\n\n// Abbreviations\n//\n// 1. Duplicate behavior to the data-bs-* attribute for our tooltip plugin\n// 2. Add the correct text decoration in Chrome, Edge, Opera, and Safari.\n// 3. Add explicit cursor to indicate changed behavior.\n// 4. Prevent the text-decoration to be skipped.\n\nabbr[title],\nabbr[data-bs-original-title] { // 1\n  text-decoration: underline dotted; // 2\n  cursor: help; // 3\n  text-decoration-skip-ink: none; // 4\n}\n\n\n// Address\n\naddress {\n  margin-bottom: 1rem;\n  font-style: normal;\n  line-height: inherit;\n}\n\n\n// Lists\n\nol,\nul {\n  padding-left: 2rem;\n}\n\nol,\nul,\ndl {\n  margin-top: 0;\n  margin-bottom: 1rem;\n}\n\nol ol,\nul ul,\nol ul,\nul ol {\n  margin-bottom: 0;\n}\n\ndt {\n  font-weight: $dt-font-weight;\n}\n\n// 1. 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Remove browser default top margin\n// 2. Reset browser default of `1em` to use `rem`s\n// 3. Don't allow content to break outside\n\npre {\n  display: block;\n  margin-top: 0; // 1\n  margin-bottom: 1rem; // 2\n  overflow: auto; // 3\n  @include font-size($code-font-size);\n  color: $pre-color;\n\n  // Account for some code outputs that place code tags in pre tags\n  code {\n    @include font-size(inherit);\n    color: inherit;\n    word-break: normal;\n  }\n}\n\ncode {\n  @include font-size($code-font-size);\n  color: $code-color;\n  word-wrap: break-word;\n\n  // Streamline the style when inside anchors to avoid broken underline and more\n  a > & {\n    color: inherit;\n  }\n}\n\nkbd {\n  padding: $kbd-padding-y $kbd-padding-x;\n  @include font-size($kbd-font-size);\n  color: $kbd-color;\n  background-color: $kbd-bg;\n  @include border-radius($border-radius-sm);\n\n  kbd {\n    padding: 0;\n    @include font-size(1em);\n    font-weight: $nested-kbd-font-weight;\n  }\n}\n\n\n// Figures\n//\n// Apply a consistent margin strategy (matches our type styles).\n\nfigure {\n  margin: 0 0 1rem;\n}\n\n\n// Images and content\n\nimg,\nsvg {\n  vertical-align: middle;\n}\n\n\n// Tables\n//\n// Prevent double borders\n\ntable {\n  caption-side: bottom;\n  border-collapse: collapse;\n}\n\ncaption {\n  padding-top: $table-cell-padding-y;\n  padding-bottom: $table-cell-padding-y;\n  color: $table-caption-color;\n  text-align: left;\n}\n\n// 1. Removes font-weight bold by inheriting\n// 2. Matches default `<td>` alignment by inheriting `text-align`.\n// 3. Fix alignment for Safari\n\nth {\n  font-weight: $table-th-font-weight; // 1\n  text-align: inherit; // 2\n  text-align: -webkit-match-parent; // 3\n}\n\nthead,\ntbody,\ntfoot,\ntr,\ntd,\nth {\n  border-color: inherit;\n  border-style: solid;\n  border-width: 0;\n}\n\n\n// Forms\n//\n// 1. Allow labels to use `margin` for spacing.\n\nlabel {\n  display: inline-block; // 1\n}\n\n// Remove the default `border-radius` that macOS Chrome adds.\n// See https://github.com/twbs/bootstrap/issues/24093\n\nbutton {\n  // stylelint-disable-next-line property-disallowed-list\n  border-radius: 0;\n}\n\n// Explicitly remove focus outline in Chromium when it shouldn't be\n// visible (e.g. as result of mouse click or touch tap). It already\n// should be doing this automatically, but seems to currently be\n// confused and applies its very visible two-tone outline anyway.\n\nbutton:focus:not(:focus-visible) {\n  outline: 0;\n}\n\n// 1. Remove the margin in Firefox and Safari\n\ninput,\nbutton,\nselect,\noptgroup,\ntextarea {\n  margin: 0; // 1\n  font-family: inherit;\n  @include font-size(inherit);\n  line-height: inherit;\n}\n\n// Remove the inheritance of text transform in Firefox\nbutton,\nselect {\n  text-transform: none;\n}\n// Set the cursor for non-`<button>` buttons\n//\n// Details at https://github.com/twbs/bootstrap/pull/30562\n[role=\"button\"] {\n  cursor: pointer;\n}\n\nselect {\n  // Remove the inheritance of word-wrap in Safari.\n  // See https://github.com/twbs/bootstrap/issues/24990\n  word-wrap: normal;\n\n  // Undo the opacity change from Chrome\n  &:disabled {\n    opacity: 1;\n  }\n}\n\n// Remove the dropdown arrow in Chrome from inputs built with datalists.\n// See https://stackoverflow.com/a/54997118\n\n[list]::-webkit-calendar-picker-indicator {\n  display: none;\n}\n\n// 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`\n//    controls in Android 4.\n// 2. Correct the inability to style clickable types in iOS and Safari.\n// 3. Opinionated: add \"hand\" cursor to non-disabled button elements.\n\nbutton,\n[type=\"button\"], // 1\n[type=\"reset\"],\n[type=\"submit\"] {\n  -webkit-appearance: button; // 2\n\n  @if $enable-button-pointers {\n    &:not(:disabled) {\n      cursor: pointer; // 3\n    }\n  }\n}\n\n// Remove inner border and padding from Firefox, but don't restore the outline like Normalize.\n\n::-moz-focus-inner {\n  padding: 0;\n  border-style: none;\n}\n\n// 1. Textareas should really only resize vertically so they don't break their (horizontal) containers.\n\ntextarea {\n  resize: vertical; // 1\n}\n\n// 1. Browsers set a default `min-width: min-content;` on fieldsets,\n//    unlike e.g. `<div>`s, which have `min-width: 0;` by default.\n//    So we reset that to ensure fieldsets behave more like a standard block element.\n//    See https://github.com/twbs/bootstrap/issues/12359\n//    and https://html.spec.whatwg.org/multipage/#the-fieldset-and-legend-elements\n// 2. Reset the default outline behavior of fieldsets so they don't affect page layout.\n\nfieldset {\n  min-width: 0; // 1\n  padding: 0; // 2\n  margin: 0; // 2\n  border: 0; // 2\n}\n\n// 1. By using `float: left`, the legend will behave like a block element.\n//    This way the border of a fieldset wraps around the legend if present.\n// 2. Fix wrapping bug.\n//    See https://github.com/twbs/bootstrap/issues/29712\n\nlegend {\n  float: left; // 1\n  width: 100%;\n  padding: 0;\n  margin-bottom: $legend-margin-bottom;\n  @include font-size($legend-font-size);\n  font-weight: $legend-font-weight;\n  line-height: inherit;\n\n  + * {\n    clear: left; // 2\n  }\n}\n\n// Fix height of inputs with a type of datetime-local, date, month, week, or time\n// See https://github.com/twbs/bootstrap/issues/18842\n\n::-webkit-datetime-edit-fields-wrapper,\n::-webkit-datetime-edit-text,\n::-webkit-datetime-edit-minute,\n::-webkit-datetime-edit-hour-field,\n::-webkit-datetime-edit-day-field,\n::-webkit-datetime-edit-month-field,\n::-webkit-datetime-edit-year-field {\n  padding: 0;\n}\n\n::-webkit-inner-spin-button {\n  height: auto;\n}\n\n// 1. Correct the outline style in Safari.\n// 2. This overrides the extra rounded corners on search inputs in iOS so that our\n//    `.form-control` class can properly style them. Note that this cannot simply\n//    be added to `.form-control` as it's not specific enough. For details, see\n//    https://github.com/twbs/bootstrap/issues/11586.\n\n[type=\"search\"] {\n  outline-offset: -2px; // 1\n  -webkit-appearance: textfield; // 2\n}\n\n// 1. A few input types should stay LTR\n// See https://rtlstyling.com/posts/rtl-styling#form-inputs\n// 2. RTL only output\n// See https://rtlcss.com/learn/usage-guide/control-directives/#raw\n\n/* rtl:raw:\n[type=\"tel\"],\n[type=\"url\"],\n[type=\"email\"],\n[type=\"number\"] {\n  direction: ltr;\n}\n*/\n\n// Remove the inner padding in Chrome and Safari on macOS.\n\n::-webkit-search-decoration {\n  -webkit-appearance: none;\n}\n\n// Remove padding around color pickers in webkit browsers\n\n::-webkit-color-swatch-wrapper {\n  padding: 0;\n}\n\n\n// Inherit font family and line height for file input buttons\n\n::file-selector-button {\n  font: inherit;\n}\n\n// 1. Change font properties to `inherit`\n// 2. Correct the inability to style clickable types in iOS and Safari.\n\n::-webkit-file-upload-button {\n  font: inherit; // 1\n  -webkit-appearance: button; // 2\n}\n\n// Correct element displays\n\noutput {\n  display: inline-block;\n}\n\n// Remove border from iframe\n\niframe {\n  border: 0;\n}\n\n// Summary\n//\n// 1. Add the correct display in all browsers\n\nsummary {\n  display: list-item; // 1\n  cursor: pointer;\n}\n\n\n// Progress\n//\n// Add the correct vertical alignment in Chrome, Firefox, and Opera.\n\nprogress {\n  vertical-align: baseline;\n}\n\n\n// Hidden attribute\n//\n// Always hide an element with the `hidden` HTML attribute.\n\n[hidden] {\n  display: none !important;\n}\n","@charset \"UTF-8\";\n/*!\n * Bootstrap v5.1.0 (https://getbootstrap.com/)\n * Copyright 2011-2021 The Bootstrap Authors\n * Copyright 2011-2021 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n */\n:root {\n  --bs-blue: #0d6efd;\n  --bs-indigo: #6610f2;\n  --bs-purple: #6f42c1;\n  --bs-pink: #d63384;\n  --bs-red: #dc3545;\n  --bs-orange: #fd7e14;\n  --bs-yellow: #ffc107;\n  --bs-green: #198754;\n  --bs-teal: #20c997;\n  --bs-cyan: #0dcaf0;\n  --bs-white: #fff;\n  --bs-gray: #6c757d;\n  --bs-gray-dark: #343a40;\n  --bs-gray-100: #f8f9fa;\n  --bs-gray-200: #e9ecef;\n  --bs-gray-300: #dee2e6;\n  --bs-gray-400: #ced4da;\n  --bs-gray-500: #adb5bd;\n  --bs-gray-600: #6c757d;\n  --bs-gray-700: #495057;\n  --bs-gray-800: #343a40;\n  --bs-gray-900: #212529;\n  --bs-primary: #0d6efd;\n  --bs-secondary: #6c757d;\n  --bs-success: #198754;\n  --bs-info: #0dcaf0;\n  --bs-warning: #ffc107;\n  --bs-danger: #dc3545;\n  --bs-light: #f8f9fa;\n  --bs-dark: #212529;\n  --bs-primary-rgb: 13, 110, 253;\n  --bs-secondary-rgb: 108, 117, 125;\n  --bs-success-rgb: 25, 135, 84;\n  --bs-info-rgb: 13, 202, 240;\n  --bs-warning-rgb: 255, 193, 7;\n  --bs-danger-rgb: 220, 53, 69;\n  --bs-light-rgb: 248, 249, 250;\n  --bs-dark-rgb: 33, 37, 41;\n  --bs-white-rgb: 255, 255, 255;\n  --bs-black-rgb: 0, 0, 0;\n  --bs-body-rgb: 33, 37, 41;\n  --bs-font-sans-serif: system-ui, -apple-system, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, \"Noto Sans\", \"Liberation Sans\", sans-serif, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\", \"Noto Color Emoji\";\n  --bs-font-monospace: SFMono-Regular, Menlo, Monaco, Consolas, \"Liberation Mono\", \"Courier New\", monospace;\n  --bs-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0));\n  --bs-body-font-family: var(--bs-font-sans-serif);\n  --bs-body-font-size: 1rem;\n  --bs-body-font-weight: 400;\n  --bs-body-line-height: 1.5;\n  --bs-body-color: #212529;\n  --bs-body-bg: #fff;\n}\n\n*,\n*::before,\n*::after {\n  box-sizing: border-box;\n}\n\n@media (prefers-reduced-motion: no-preference) {\n  :root {\n    scroll-behavior: smooth;\n  }\n}\n\nbody {\n  margin: 0;\n  font-family: var(--bs-body-font-family);\n  font-size: var(--bs-body-font-size);\n  font-weight: var(--bs-body-font-weight);\n  line-height: var(--bs-body-line-height);\n  color: var(--bs-body-color);\n  text-align: var(--bs-body-text-align);\n  background-color: var(--bs-body-bg);\n  -webkit-text-size-adjust: 100%;\n  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);\n}\n\nhr {\n  margin: 1rem 0;\n  color: inherit;\n  background-color: currentColor;\n  border: 0;\n  opacity: 0.25;\n}\n\nhr:not([size]) {\n  height: 1px;\n}\n\nh6, .h6, h5, .h5, h4, .h4, h3, .h3, h2, .h2, h1, .h1 {\n  margin-top: 0;\n  margin-bottom: 0.5rem;\n  font-weight: 500;\n  line-height: 1.2;\n}\n\nh1, .h1 {\n  font-size: calc(1.375rem + 1.5vw);\n}\n@media (min-width: 1200px) {\n  h1, .h1 {\n    font-size: 2.5rem;\n  }\n}\n\nh2, .h2 {\n  font-size: calc(1.325rem + 0.9vw);\n}\n@media (min-width: 1200px) {\n  h2, .h2 {\n    font-size: 2rem;\n  }\n}\n\nh3, .h3 {\n  font-size: calc(1.3rem + 0.6vw);\n}\n@media (min-width: 1200px) {\n  h3, .h3 {\n    font-size: 1.75rem;\n  }\n}\n\nh4, .h4 {\n  font-size: calc(1.275rem + 0.3vw);\n}\n@media (min-width: 1200px) {\n  h4, .h4 {\n    font-size: 1.5rem;\n  }\n}\n\nh5, .h5 {\n  font-size: 1.25rem;\n}\n\nh6, .h6 {\n  font-size: 1rem;\n}\n\np {\n  margin-top: 0;\n  margin-bottom: 1rem;\n}\n\nabbr[title],\nabbr[data-bs-original-title] {\n  -webkit-text-decoration: underline dotted;\n  text-decoration: underline dotted;\n  cursor: help;\n  -webkit-text-decoration-skip-ink: none;\n  text-decoration-skip-ink: none;\n}\n\naddress {\n  margin-bottom: 1rem;\n  font-style: normal;\n  line-height: inherit;\n}\n\nol,\nul {\n  padding-left: 2rem;\n}\n\nol,\nul,\ndl {\n  margin-top: 0;\n  margin-bottom: 1rem;\n}\n\nol ol,\nul ul,\nol ul,\nul ol {\n  margin-bottom: 0;\n}\n\ndt {\n  font-weight: 700;\n}\n\ndd {\n  margin-bottom: 0.5rem;\n  margin-left: 0;\n}\n\nblockquote {\n  margin: 0 0 1rem;\n}\n\nb,\nstrong {\n  font-weight: bolder;\n}\n\nsmall, .small {\n  font-size: 0.875em;\n}\n\nmark, .mark {\n  padding: 0.2em;\n  background-color: #fcf8e3;\n}\n\nsub,\nsup {\n  position: relative;\n  font-size: 0.75em;\n  line-height: 0;\n  vertical-align: baseline;\n}\n\nsub {\n  bottom: -0.25em;\n}\n\nsup {\n  top: -0.5em;\n}\n\na {\n  color: #0d6efd;\n  text-decoration: underline;\n}\na:hover {\n  color: #0a58ca;\n}\n\na:not([href]):not([class]), a:not([href]):not([class]):hover {\n  color: inherit;\n  text-decoration: none;\n}\n\npre,\ncode,\nkbd,\nsamp {\n  font-family: var(--bs-font-monospace);\n  font-size: 1em;\n  direction: ltr /* rtl:ignore */;\n  unicode-bidi: bidi-override;\n}\n\npre {\n  display: block;\n  margin-top: 0;\n  margin-bottom: 1rem;\n  overflow: auto;\n  font-size: 0.875em;\n}\npre code {\n  font-size: inherit;\n  color: inherit;\n  word-break: normal;\n}\n\ncode {\n  font-size: 0.875em;\n  color: #d63384;\n  word-wrap: break-word;\n}\na > code {\n  color: inherit;\n}\n\nkbd {\n  padding: 0.2rem 0.4rem;\n  font-size: 0.875em;\n  color: #fff;\n  background-color: #212529;\n  border-radius: 0.2rem;\n}\nkbd kbd {\n  padding: 0;\n  font-size: 1em;\n  font-weight: 700;\n}\n\nfigure {\n  margin: 0 0 1rem;\n}\n\nimg,\nsvg {\n  vertical-align: middle;\n}\n\ntable {\n  caption-side: bottom;\n  border-collapse: collapse;\n}\n\ncaption {\n  padding-top: 0.5rem;\n  padding-bottom: 0.5rem;\n  color: #6c757d;\n  text-align: left;\n}\n\nth {\n  text-align: inherit;\n  text-align: -webkit-match-parent;\n}\n\nthead,\ntbody,\ntfoot,\ntr,\ntd,\nth {\n  border-color: inherit;\n  border-style: solid;\n  border-width: 0;\n}\n\nlabel {\n  display: inline-block;\n}\n\nbutton {\n  border-radius: 0;\n}\n\nbutton:focus:not(:focus-visible) {\n  outline: 0;\n}\n\ninput,\nbutton,\nselect,\noptgroup,\ntextarea {\n  margin: 0;\n  font-family: inherit;\n  font-size: inherit;\n  line-height: inherit;\n}\n\nbutton,\nselect {\n  text-transform: none;\n}\n\n[role=button] {\n  cursor: pointer;\n}\n\nselect {\n  word-wrap: normal;\n}\nselect:disabled {\n  opacity: 1;\n}\n\n[list]::-webkit-calendar-picker-indicator {\n  display: none;\n}\n\nbutton,\n[type=button],\n[type=reset],\n[type=submit] {\n  -webkit-appearance: button;\n}\nbutton:not(:disabled),\n[type=button]:not(:disabled),\n[type=reset]:not(:disabled),\n[type=submit]:not(:disabled) {\n  cursor: pointer;\n}\n\n::-moz-focus-inner {\n  padding: 0;\n  border-style: none;\n}\n\ntextarea {\n  resize: vertical;\n}\n\nfieldset {\n  min-width: 0;\n  padding: 0;\n  margin: 0;\n  border: 0;\n}\n\nlegend {\n  float: left;\n  width: 100%;\n  padding: 0;\n  margin-bottom: 0.5rem;\n  font-size: calc(1.275rem + 0.3vw);\n  line-height: inherit;\n}\n@media (min-width: 1200px) {\n  legend {\n    font-size: 1.5rem;\n  }\n}\nlegend + * {\n  clear: left;\n}\n\n::-webkit-datetime-edit-fields-wrapper,\n::-webkit-datetime-edit-text,\n::-webkit-datetime-edit-minute,\n::-webkit-datetime-edit-hour-field,\n::-webkit-datetime-edit-day-field,\n::-webkit-datetime-edit-month-field,\n::-webkit-datetime-edit-year-field {\n  padding: 0;\n}\n\n::-webkit-inner-spin-button {\n  height: auto;\n}\n\n[type=search] {\n  outline-offset: -2px;\n  -webkit-appearance: textfield;\n}\n\n/* rtl:raw:\n[type=\"tel\"],\n[type=\"url\"],\n[type=\"email\"],\n[type=\"number\"] {\n  direction: ltr;\n}\n*/\n::-webkit-search-decoration {\n  -webkit-appearance: none;\n}\n\n::-webkit-color-swatch-wrapper {\n  padding: 0;\n}\n\n::file-selector-button {\n  font: inherit;\n}\n\n::-webkit-file-upload-button {\n  font: inherit;\n  -webkit-appearance: button;\n}\n\noutput {\n  display: inline-block;\n}\n\niframe {\n  border: 0;\n}\n\nsummary {\n  display: list-item;\n  cursor: pointer;\n}\n\nprogress {\n  vertical-align: baseline;\n}\n\n[hidden] {\n  display: none !important;\n}\n\n.lead {\n  font-size: 1.25rem;\n  font-weight: 300;\n}\n\n.display-1 {\n  font-size: calc(1.625rem + 4.5vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-1 {\n    font-size: 5rem;\n  }\n}\n\n.display-2 {\n  font-size: calc(1.575rem + 3.9vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-2 {\n    font-size: 4.5rem;\n  }\n}\n\n.display-3 {\n  font-size: calc(1.525rem + 3.3vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-3 {\n    font-size: 4rem;\n  }\n}\n\n.display-4 {\n  font-size: calc(1.475rem + 2.7vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-4 {\n    font-size: 3.5rem;\n  }\n}\n\n.display-5 {\n  font-size: calc(1.425rem + 2.1vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-5 {\n    font-size: 3rem;\n  }\n}\n\n.display-6 {\n  font-size: calc(1.375rem + 1.5vw);\n  font-weight: 300;\n  line-height: 1.2;\n}\n@media (min-width: 1200px) {\n  .display-6 {\n    font-size: 2.5rem;\n  }\n}\n\n.list-unstyled {\n  padding-left: 0;\n  list-style: none;\n}\n\n.list-inline {\n  padding-left: 0;\n  list-style: none;\n}\n\n.list-inline-item {\n  display: inline-block;\n}\n.list-inline-item:not(:last-child) {\n  margin-right: 0.5rem;\n}\n\n.initialism {\n  font-size: 0.875em;\n  text-transform: uppercase;\n}\n\n.blockquote {\n  margin-bottom: 1rem;\n  font-size: 1.25rem;\n}\n.blockquote > :last-child {\n  margin-bottom: 0;\n}\n\n.blockquote-footer {\n  margin-top: -1rem;\n  margin-bottom: 1rem;\n  font-size: 0.875em;\n  color: #6c757d;\n}\n.blockquote-footer::before {\n  content: \"— \";\n}\n\n.img-fluid {\n  max-width: 100%;\n  height: auto;\n}\n\n.img-thumbnail {\n  padding: 0.25rem;\n  background-color: #fff;\n  border: 1px solid #dee2e6;\n  border-radius: 0.25rem;\n  max-width: 100%;\n  height: auto;\n}\n\n.figure {\n  display: inline-block;\n}\n\n.figure-img {\n  margin-bottom: 0.5rem;\n  line-height: 1;\n}\n\n.figure-caption {\n  font-size: 0.875em;\n  color: #6c757d;\n}\n\n.container,\n.container-fluid,\n.container-xxl,\n.container-xl,\n.container-lg,\n.container-md,\n.container-sm {\n  width: 100%;\n  padding-right: var(--bs-gutter-x, 0.75rem);\n  padding-left: var(--bs-gutter-x, 0.75rem);\n  margin-right: auto;\n  margin-left: auto;\n}\n\n@media (min-width: 576px) {\n  .container-sm, .container {\n    max-width: 540px;\n  }\n}\n@media (min-width: 768px) {\n  .container-md, .container-sm, .container {\n    max-width: 720px;\n  }\n}\n@media (min-width: 992px) {\n  .container-lg, .container-md, .container-sm, .container {\n    max-width: 960px;\n  }\n}\n@media (min-width: 1200px) {\n  .container-xl, .container-lg, .container-md, .container-sm, .container {\n    max-width: 1140px;\n  }\n}\n@media (min-width: 1400px) {\n  .container-xxl, .container-xl, .container-lg, .container-md, .container-sm, .container {\n    max-width: 1320px;\n  }\n}\n.row {\n  --bs-gutter-x: 1.5rem;\n  --bs-gutter-y: 0;\n  display: flex;\n  flex-wrap: wrap;\n  margin-top: calc(var(--bs-gutter-y) * -1);\n  margin-right: calc(var(--bs-gutter-x) * -.5);\n  margin-left: calc(var(--bs-gutter-x) * -.5);\n}\n.row > * {\n  flex-shrink: 0;\n  width: 100%;\n  max-width: 100%;\n  padding-right: calc(var(--bs-gutter-x) * .5);\n  padding-left: calc(var(--bs-gutter-x) * .5);\n  margin-top: var(--bs-gutter-y);\n}\n\n.col {\n  flex: 1 0 0%;\n}\n\n.row-cols-auto > * {\n  flex: 0 0 auto;\n  width: auto;\n}\n\n.row-cols-1 > * {\n  flex: 0 0 auto;\n  width: 100%;\n}\n\n.row-cols-2 > * {\n  flex: 0 0 auto;\n  width: 50%;\n}\n\n.row-cols-3 > * {\n  flex: 0 0 auto;\n  width: 33.3333333333%;\n}\n\n.row-cols-4 > * {\n  flex: 0 0 auto;\n  width: 25%;\n}\n\n.row-cols-5 > * {\n  flex: 0 0 auto;\n  width: 20%;\n}\n\n.row-cols-6 > * {\n  flex: 0 0 auto;\n  width: 16.6666666667%;\n}\n\n.col-auto {\n  flex: 0 0 auto;\n  width: auto;\n}\n\n.col-1 {\n  flex: 0 0 auto;\n  width: 8.33333333%;\n}\n\n.col-2 {\n  flex: 0 0 auto;\n  width: 16.66666667%;\n}\n\n.col-3 {\n  flex: 0 0 auto;\n  width: 25%;\n}\n\n.col-4 {\n  flex: 0 0 auto;\n  width: 33.33333333%;\n}\n\n.col-5 {\n  flex: 0 0 auto;\n  width: 41.66666667%;\n}\n\n.col-6 {\n  flex: 0 0 auto;\n  width: 50%;\n}\n\n.col-7 {\n  flex: 0 0 auto;\n  width: 58.33333333%;\n}\n\n.col-8 {\n  flex: 0 0 auto;\n  width: 66.66666667%;\n}\n\n.col-9 {\n  flex: 0 0 auto;\n  width: 75%;\n}\n\n.col-10 {\n  flex: 0 0 auto;\n  width: 83.33333333%;\n}\n\n.col-11 {\n  flex: 0 0 auto;\n  width: 91.66666667%;\n}\n\n.col-12 {\n  flex: 0 0 auto;\n  width: 100%;\n}\n\n.offset-1 {\n  margin-left: 8.33333333%;\n}\n\n.offset-2 {\n  margin-left: 16.66666667%;\n}\n\n.offset-3 {\n  margin-left: 25%;\n}\n\n.offset-4 {\n  margin-left: 33.33333333%;\n}\n\n.offset-5 {\n  margin-left: 41.66666667%;\n}\n\n.offset-6 {\n  margin-left: 50%;\n}\n\n.offset-7 {\n  margin-left: 58.33333333%;\n}\n\n.offset-8 {\n  margin-left: 66.66666667%;\n}\n\n.offset-9 {\n  margin-left: 75%;\n}\n\n.offset-10 {\n  margin-left: 83.33333333%;\n}\n\n.offset-11 {\n  margin-left: 91.66666667%;\n}\n\n.g-0,\n.gx-0 {\n  --bs-gutter-x: 0;\n}\n\n.g-0,\n.gy-0 {\n  --bs-gutter-y: 0;\n}\n\n.g-1,\n.gx-1 {\n  --bs-gutter-x: 0.25rem;\n}\n\n.g-1,\n.gy-1 {\n  --bs-gutter-y: 0.25rem;\n}\n\n.g-2,\n.gx-2 {\n  --bs-gutter-x: 0.5rem;\n}\n\n.g-2,\n.gy-2 {\n  --bs-gutter-y: 0.5rem;\n}\n\n.g-3,\n.gx-3 {\n  --bs-gutter-x: 1rem;\n}\n\n.g-3,\n.gy-3 {\n  --bs-gutter-y: 1rem;\n}\n\n.g-4,\n.gx-4 {\n  --bs-gutter-x: 1.5rem;\n}\n\n.g-4,\n.gy-4 {\n  --bs-gutter-y: 1.5rem;\n}\n\n.g-5,\n.gx-5 {\n  --bs-gutter-x: 3rem;\n}\n\n.g-5,\n.gy-5 {\n  --bs-gutter-y: 3rem;\n}\n\n@media (min-width: 576px) {\n  .col-sm {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-sm-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-sm-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-sm-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-sm-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-sm-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-sm-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-sm-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-sm-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-sm-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-sm-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-sm-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-sm-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-sm-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-sm-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-sm-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-sm-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-sm-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-sm-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-sm-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-sm-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-sm-0 {\n    margin-left: 0;\n  }\n\n  .offset-sm-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-sm-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-sm-3 {\n    margin-left: 25%;\n  }\n\n  .offset-sm-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-sm-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-sm-6 {\n    margin-left: 50%;\n  }\n\n  .offset-sm-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-sm-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-sm-9 {\n    margin-left: 75%;\n  }\n\n  .offset-sm-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-sm-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-sm-0,\n.gx-sm-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-sm-0,\n.gy-sm-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-sm-1,\n.gx-sm-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-sm-1,\n.gy-sm-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-sm-2,\n.gx-sm-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-sm-2,\n.gy-sm-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-sm-3,\n.gx-sm-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-sm-3,\n.gy-sm-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-sm-4,\n.gx-sm-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-sm-4,\n.gy-sm-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-sm-5,\n.gx-sm-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-sm-5,\n.gy-sm-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n@media (min-width: 768px) {\n  .col-md {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-md-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-md-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-md-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-md-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-md-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-md-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-md-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-md-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-md-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-md-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-md-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-md-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-md-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-md-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-md-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-md-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-md-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-md-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-md-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-md-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-md-0 {\n    margin-left: 0;\n  }\n\n  .offset-md-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-md-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-md-3 {\n    margin-left: 25%;\n  }\n\n  .offset-md-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-md-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-md-6 {\n    margin-left: 50%;\n  }\n\n  .offset-md-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-md-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-md-9 {\n    margin-left: 75%;\n  }\n\n  .offset-md-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-md-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-md-0,\n.gx-md-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-md-0,\n.gy-md-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-md-1,\n.gx-md-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-md-1,\n.gy-md-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-md-2,\n.gx-md-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-md-2,\n.gy-md-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-md-3,\n.gx-md-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-md-3,\n.gy-md-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-md-4,\n.gx-md-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-md-4,\n.gy-md-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-md-5,\n.gx-md-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-md-5,\n.gy-md-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n@media (min-width: 992px) {\n  .col-lg {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-lg-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-lg-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-lg-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-lg-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-lg-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-lg-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-lg-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-lg-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-lg-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-lg-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-lg-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-lg-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-lg-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-lg-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-lg-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-lg-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-lg-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-lg-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-lg-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-lg-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-lg-0 {\n    margin-left: 0;\n  }\n\n  .offset-lg-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-lg-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-lg-3 {\n    margin-left: 25%;\n  }\n\n  .offset-lg-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-lg-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-lg-6 {\n    margin-left: 50%;\n  }\n\n  .offset-lg-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-lg-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-lg-9 {\n    margin-left: 75%;\n  }\n\n  .offset-lg-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-lg-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-lg-0,\n.gx-lg-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-lg-0,\n.gy-lg-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-lg-1,\n.gx-lg-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-lg-1,\n.gy-lg-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-lg-2,\n.gx-lg-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-lg-2,\n.gy-lg-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-lg-3,\n.gx-lg-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-lg-3,\n.gy-lg-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-lg-4,\n.gx-lg-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-lg-4,\n.gy-lg-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-lg-5,\n.gx-lg-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-lg-5,\n.gy-lg-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n@media (min-width: 1200px) {\n  .col-xl {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-xl-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-xl-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-xl-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-xl-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-xl-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-xl-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-xl-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-xl-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-xl-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-xl-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-xl-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-xl-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-xl-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-xl-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-xl-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-xl-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-xl-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-xl-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-xl-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-xl-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-xl-0 {\n    margin-left: 0;\n  }\n\n  .offset-xl-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-xl-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-xl-3 {\n    margin-left: 25%;\n  }\n\n  .offset-xl-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-xl-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-xl-6 {\n    margin-left: 50%;\n  }\n\n  .offset-xl-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-xl-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-xl-9 {\n    margin-left: 75%;\n  }\n\n  .offset-xl-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-xl-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-xl-0,\n.gx-xl-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-xl-0,\n.gy-xl-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-xl-1,\n.gx-xl-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-xl-1,\n.gy-xl-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-xl-2,\n.gx-xl-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-xl-2,\n.gy-xl-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-xl-3,\n.gx-xl-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-xl-3,\n.gy-xl-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-xl-4,\n.gx-xl-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-xl-4,\n.gy-xl-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-xl-5,\n.gx-xl-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-xl-5,\n.gy-xl-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n@media (min-width: 1400px) {\n  .col-xxl {\n    flex: 1 0 0%;\n  }\n\n  .row-cols-xxl-auto > * {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .row-cols-xxl-1 > * {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .row-cols-xxl-2 > * {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .row-cols-xxl-3 > * {\n    flex: 0 0 auto;\n    width: 33.3333333333%;\n  }\n\n  .row-cols-xxl-4 > * {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .row-cols-xxl-5 > * {\n    flex: 0 0 auto;\n    width: 20%;\n  }\n\n  .row-cols-xxl-6 > * {\n    flex: 0 0 auto;\n    width: 16.6666666667%;\n  }\n\n  .col-xxl-auto {\n    flex: 0 0 auto;\n    width: auto;\n  }\n\n  .col-xxl-1 {\n    flex: 0 0 auto;\n    width: 8.33333333%;\n  }\n\n  .col-xxl-2 {\n    flex: 0 0 auto;\n    width: 16.66666667%;\n  }\n\n  .col-xxl-3 {\n    flex: 0 0 auto;\n    width: 25%;\n  }\n\n  .col-xxl-4 {\n    flex: 0 0 auto;\n    width: 33.33333333%;\n  }\n\n  .col-xxl-5 {\n    flex: 0 0 auto;\n    width: 41.66666667%;\n  }\n\n  .col-xxl-6 {\n    flex: 0 0 auto;\n    width: 50%;\n  }\n\n  .col-xxl-7 {\n    flex: 0 0 auto;\n    width: 58.33333333%;\n  }\n\n  .col-xxl-8 {\n    flex: 0 0 auto;\n    width: 66.66666667%;\n  }\n\n  .col-xxl-9 {\n    flex: 0 0 auto;\n    width: 75%;\n  }\n\n  .col-xxl-10 {\n    flex: 0 0 auto;\n    width: 83.33333333%;\n  }\n\n  .col-xxl-11 {\n    flex: 0 0 auto;\n    width: 91.66666667%;\n  }\n\n  .col-xxl-12 {\n    flex: 0 0 auto;\n    width: 100%;\n  }\n\n  .offset-xxl-0 {\n    margin-left: 0;\n  }\n\n  .offset-xxl-1 {\n    margin-left: 8.33333333%;\n  }\n\n  .offset-xxl-2 {\n    margin-left: 16.66666667%;\n  }\n\n  .offset-xxl-3 {\n    margin-left: 25%;\n  }\n\n  .offset-xxl-4 {\n    margin-left: 33.33333333%;\n  }\n\n  .offset-xxl-5 {\n    margin-left: 41.66666667%;\n  }\n\n  .offset-xxl-6 {\n    margin-left: 50%;\n  }\n\n  .offset-xxl-7 {\n    margin-left: 58.33333333%;\n  }\n\n  .offset-xxl-8 {\n    margin-left: 66.66666667%;\n  }\n\n  .offset-xxl-9 {\n    margin-left: 75%;\n  }\n\n  .offset-xxl-10 {\n    margin-left: 83.33333333%;\n  }\n\n  .offset-xxl-11 {\n    margin-left: 91.66666667%;\n  }\n\n  .g-xxl-0,\n.gx-xxl-0 {\n    --bs-gutter-x: 0;\n  }\n\n  .g-xxl-0,\n.gy-xxl-0 {\n    --bs-gutter-y: 0;\n  }\n\n  .g-xxl-1,\n.gx-xxl-1 {\n    --bs-gutter-x: 0.25rem;\n  }\n\n  .g-xxl-1,\n.gy-xxl-1 {\n    --bs-gutter-y: 0.25rem;\n  }\n\n  .g-xxl-2,\n.gx-xxl-2 {\n    --bs-gutter-x: 0.5rem;\n  }\n\n  .g-xxl-2,\n.gy-xxl-2 {\n    --bs-gutter-y: 0.5rem;\n  }\n\n  .g-xxl-3,\n.gx-xxl-3 {\n    --bs-gutter-x: 1rem;\n  }\n\n  .g-xxl-3,\n.gy-xxl-3 {\n    --bs-gutter-y: 1rem;\n  }\n\n  .g-xxl-4,\n.gx-xxl-4 {\n    --bs-gutter-x: 1.5rem;\n  }\n\n  .g-xxl-4,\n.gy-xxl-4 {\n    --bs-gutter-y: 1.5rem;\n  }\n\n  .g-xxl-5,\n.gx-xxl-5 {\n    --bs-gutter-x: 3rem;\n  }\n\n  .g-xxl-5,\n.gy-xxl-5 {\n    --bs-gutter-y: 3rem;\n  }\n}\n.table {\n  --bs-table-bg: transparent;\n  --bs-table-accent-bg: transparent;\n  --bs-table-striped-color: #212529;\n  --bs-table-striped-bg: rgba(0, 0, 0, 0.05);\n  --bs-table-active-color: #212529;\n  --bs-table-active-bg: rgba(0, 0, 0, 0.1);\n  --bs-table-hover-color: #212529;\n  --bs-table-hover-bg: rgba(0, 0, 0, 0.075);\n  width: 100%;\n  margin-bottom: 1rem;\n  color: #212529;\n  vertical-align: top;\n  border-color: #dee2e6;\n}\n.table > :not(caption) > * > * {\n  padding: 0.5rem 0.5rem;\n  background-color: var(--bs-table-bg);\n  border-bottom-width: 1px;\n  box-shadow: inset 0 0 0 9999px var(--bs-table-accent-bg);\n}\n.table > tbody {\n  vertical-align: inherit;\n}\n.table > thead {\n  vertical-align: bottom;\n}\n.table > :not(:last-child) > :last-child > * {\n  border-bottom-color: currentColor;\n}\n\n.caption-top {\n  caption-side: top;\n}\n\n.table-sm > :not(caption) > * > * {\n  padding: 0.25rem 0.25rem;\n}\n\n.table-bordered > :not(caption) > * {\n  border-width: 1px 0;\n}\n.table-bordered > :not(caption) > * > * {\n  border-width: 0 1px;\n}\n\n.table-borderless > :not(caption) > * > * {\n  border-bottom-width: 0;\n}\n\n.table-striped > tbody > tr:nth-of-type(odd) {\n  --bs-table-accent-bg: var(--bs-table-striped-bg);\n  color: var(--bs-table-striped-color);\n}\n\n.table-active {\n  --bs-table-accent-bg: var(--bs-table-active-bg);\n  color: var(--bs-table-active-color);\n}\n\n.table-hover > tbody > tr:hover {\n  --bs-table-accent-bg: var(--bs-table-hover-bg);\n  color: var(--bs-table-hover-color);\n}\n\n.table-primary {\n  --bs-table-bg: #cfe2ff;\n  --bs-table-striped-bg: #c5d7f2;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #bacbe6;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #bfd1ec;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #bacbe6;\n}\n\n.table-secondary {\n  --bs-table-bg: #e2e3e5;\n  --bs-table-striped-bg: #d7d8da;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #cbccce;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #d1d2d4;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #cbccce;\n}\n\n.table-success {\n  --bs-table-bg: #d1e7dd;\n  --bs-table-striped-bg: #c7dbd2;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #bcd0c7;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #c1d6cc;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #bcd0c7;\n}\n\n.table-info {\n  --bs-table-bg: #cff4fc;\n  --bs-table-striped-bg: #c5e8ef;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #badce3;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #bfe2e9;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #badce3;\n}\n\n.table-warning {\n  --bs-table-bg: #fff3cd;\n  --bs-table-striped-bg: #f2e7c3;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #e6dbb9;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #ece1be;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #e6dbb9;\n}\n\n.table-danger {\n  --bs-table-bg: #f8d7da;\n  --bs-table-striped-bg: #eccccf;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #dfc2c4;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #e5c7ca;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #dfc2c4;\n}\n\n.table-light {\n  --bs-table-bg: #f8f9fa;\n  --bs-table-striped-bg: #ecedee;\n  --bs-table-striped-color: #000;\n  --bs-table-active-bg: #dfe0e1;\n  --bs-table-active-color: #000;\n  --bs-table-hover-bg: #e5e6e7;\n  --bs-table-hover-color: #000;\n  color: #000;\n  border-color: #dfe0e1;\n}\n\n.table-dark {\n  --bs-table-bg: #212529;\n  --bs-table-striped-bg: #2c3034;\n  --bs-table-striped-color: #fff;\n  --bs-table-active-bg: #373b3e;\n  --bs-table-active-color: #fff;\n  --bs-table-hover-bg: #323539;\n  --bs-table-hover-color: #fff;\n  color: #fff;\n  border-color: #373b3e;\n}\n\n.table-responsive {\n  overflow-x: auto;\n  -webkit-overflow-scrolling: touch;\n}\n\n@media (max-width: 575.98px) {\n  .table-responsive-sm {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 767.98px) {\n  .table-responsive-md {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 991.98px) {\n  .table-responsive-lg {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 1199.98px) {\n  .table-responsive-xl {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 1399.98px) {\n  .table-responsive-xxl {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n.form-label {\n  margin-bottom: 0.5rem;\n}\n\n.col-form-label {\n  padding-top: calc(0.375rem + 1px);\n  padding-bottom: calc(0.375rem + 1px);\n  margin-bottom: 0;\n  font-size: inherit;\n  line-height: 1.5;\n}\n\n.col-form-label-lg {\n  padding-top: calc(0.5rem + 1px);\n  padding-bottom: calc(0.5rem + 1px);\n  font-size: 1.25rem;\n}\n\n.col-form-label-sm {\n  padding-top: calc(0.25rem + 1px);\n  padding-bottom: calc(0.25rem + 1px);\n  font-size: 0.875rem;\n}\n\n.form-text {\n  margin-top: 0.25rem;\n  font-size: 0.875em;\n  color: #6c757d;\n}\n\n.form-control {\n  display: block;\n  width: 100%;\n  padding: 0.375rem 0.75rem;\n  font-size: 1rem;\n  font-weight: 400;\n  line-height: 1.5;\n  color: #212529;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 1px solid #ced4da;\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n  border-radius: 0.25rem;\n  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-control {\n    transition: none;\n  }\n}\n.form-control[type=file] {\n  overflow: hidden;\n}\n.form-control[type=file]:not(:disabled):not([readonly]) {\n  cursor: pointer;\n}\n.form-control:focus {\n  color: #212529;\n  background-color: #fff;\n  border-color: #86b7fe;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-control::-webkit-date-and-time-value {\n  height: 1.5em;\n}\n.form-control::-moz-placeholder {\n  color: #6c757d;\n  opacity: 1;\n}\n.form-control::placeholder {\n  color: #6c757d;\n  opacity: 1;\n}\n.form-control:disabled, .form-control[readonly] {\n  background-color: #e9ecef;\n  opacity: 1;\n}\n.form-control::file-selector-button {\n  padding: 0.375rem 0.75rem;\n  margin: -0.375rem -0.75rem;\n  -webkit-margin-end: 0.75rem;\n  margin-inline-end: 0.75rem;\n  color: #212529;\n  background-color: #e9ecef;\n  pointer-events: none;\n  border-color: inherit;\n  border-style: solid;\n  border-width: 0;\n  border-inline-end-width: 1px;\n  border-radius: 0;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-control::file-selector-button {\n    transition: none;\n  }\n}\n.form-control:hover:not(:disabled):not([readonly])::file-selector-button {\n  background-color: #dde0e3;\n}\n.form-control::-webkit-file-upload-button {\n  padding: 0.375rem 0.75rem;\n  margin: -0.375rem -0.75rem;\n  -webkit-margin-end: 0.75rem;\n  margin-inline-end: 0.75rem;\n  color: #212529;\n  background-color: #e9ecef;\n  pointer-events: none;\n  border-color: inherit;\n  border-style: solid;\n  border-width: 0;\n  border-inline-end-width: 1px;\n  border-radius: 0;\n  -webkit-transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-control::-webkit-file-upload-button {\n    -webkit-transition: none;\n    transition: none;\n  }\n}\n.form-control:hover:not(:disabled):not([readonly])::-webkit-file-upload-button {\n  background-color: #dde0e3;\n}\n\n.form-control-plaintext {\n  display: block;\n  width: 100%;\n  padding: 0.375rem 0;\n  margin-bottom: 0;\n  line-height: 1.5;\n  color: #212529;\n  background-color: transparent;\n  border: solid transparent;\n  border-width: 1px 0;\n}\n.form-control-plaintext.form-control-sm, .form-control-plaintext.form-control-lg {\n  padding-right: 0;\n  padding-left: 0;\n}\n\n.form-control-sm {\n  min-height: calc(1.5em + 0.5rem + 2px);\n  padding: 0.25rem 0.5rem;\n  font-size: 0.875rem;\n  border-radius: 0.2rem;\n}\n.form-control-sm::file-selector-button {\n  padding: 0.25rem 0.5rem;\n  margin: -0.25rem -0.5rem;\n  -webkit-margin-end: 0.5rem;\n  margin-inline-end: 0.5rem;\n}\n.form-control-sm::-webkit-file-upload-button {\n  padding: 0.25rem 0.5rem;\n  margin: -0.25rem -0.5rem;\n  -webkit-margin-end: 0.5rem;\n  margin-inline-end: 0.5rem;\n}\n\n.form-control-lg {\n  min-height: calc(1.5em + 1rem + 2px);\n  padding: 0.5rem 1rem;\n  font-size: 1.25rem;\n  border-radius: 0.3rem;\n}\n.form-control-lg::file-selector-button {\n  padding: 0.5rem 1rem;\n  margin: -0.5rem -1rem;\n  -webkit-margin-end: 1rem;\n  margin-inline-end: 1rem;\n}\n.form-control-lg::-webkit-file-upload-button {\n  padding: 0.5rem 1rem;\n  margin: -0.5rem -1rem;\n  -webkit-margin-end: 1rem;\n  margin-inline-end: 1rem;\n}\n\ntextarea.form-control {\n  min-height: calc(1.5em + 0.75rem + 2px);\n}\ntextarea.form-control-sm {\n  min-height: calc(1.5em + 0.5rem + 2px);\n}\ntextarea.form-control-lg {\n  min-height: calc(1.5em + 1rem + 2px);\n}\n\n.form-control-color {\n  width: 3rem;\n  height: auto;\n  padding: 0.375rem;\n}\n.form-control-color:not(:disabled):not([readonly]) {\n  cursor: pointer;\n}\n.form-control-color::-moz-color-swatch {\n  height: 1.5em;\n  border-radius: 0.25rem;\n}\n.form-control-color::-webkit-color-swatch {\n  height: 1.5em;\n  border-radius: 0.25rem;\n}\n\n.form-select {\n  display: block;\n  width: 100%;\n  padding: 0.375rem 2.25rem 0.375rem 0.75rem;\n  -moz-padding-start: calc(0.75rem - 3px);\n  font-size: 1rem;\n  font-weight: 400;\n  line-height: 1.5;\n  color: #212529;\n  background-color: #fff;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e\");\n  background-repeat: no-repeat;\n  background-position: right 0.75rem center;\n  background-size: 16px 12px;\n  border: 1px solid #ced4da;\n  border-radius: 0.25rem;\n  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-select {\n    transition: none;\n  }\n}\n.form-select:focus {\n  border-color: #86b7fe;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-select[multiple], .form-select[size]:not([size=\"1\"]) {\n  padding-right: 0.75rem;\n  background-image: none;\n}\n.form-select:disabled {\n  background-color: #e9ecef;\n}\n.form-select:-moz-focusring {\n  color: transparent;\n  text-shadow: 0 0 0 #212529;\n}\n\n.form-select-sm {\n  padding-top: 0.25rem;\n  padding-bottom: 0.25rem;\n  padding-left: 0.5rem;\n  font-size: 0.875rem;\n}\n\n.form-select-lg {\n  padding-top: 0.5rem;\n  padding-bottom: 0.5rem;\n  padding-left: 1rem;\n  font-size: 1.25rem;\n}\n\n.form-check {\n  display: block;\n  min-height: 1.5rem;\n  padding-left: 1.5em;\n  margin-bottom: 0.125rem;\n}\n.form-check .form-check-input {\n  float: left;\n  margin-left: -1.5em;\n}\n\n.form-check-input {\n  width: 1em;\n  height: 1em;\n  margin-top: 0.25em;\n  vertical-align: top;\n  background-color: #fff;\n  background-repeat: no-repeat;\n  background-position: center;\n  background-size: contain;\n  border: 1px solid rgba(0, 0, 0, 0.25);\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n  -webkit-print-color-adjust: exact;\n  color-adjust: exact;\n}\n.form-check-input[type=checkbox] {\n  border-radius: 0.25em;\n}\n.form-check-input[type=radio] {\n  border-radius: 50%;\n}\n.form-check-input:active {\n  filter: brightness(90%);\n}\n.form-check-input:focus {\n  border-color: #86b7fe;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-check-input:checked {\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.form-check-input:checked[type=checkbox] {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e\");\n}\n.form-check-input:checked[type=radio] {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23fff'/%3e%3c/svg%3e\");\n}\n.form-check-input[type=checkbox]:indeterminate {\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10h8'/%3e%3c/svg%3e\");\n}\n.form-check-input:disabled {\n  pointer-events: none;\n  filter: none;\n  opacity: 0.5;\n}\n.form-check-input[disabled] ~ .form-check-label, .form-check-input:disabled ~ .form-check-label {\n  opacity: 0.5;\n}\n\n.form-switch {\n  padding-left: 2.5em;\n}\n.form-switch .form-check-input {\n  width: 2em;\n  margin-left: -2.5em;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='rgba%280, 0, 0, 0.25%29'/%3e%3c/svg%3e\");\n  background-position: left center;\n  border-radius: 2em;\n  transition: background-position 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-switch .form-check-input {\n    transition: none;\n  }\n}\n.form-switch .form-check-input:focus {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%2386b7fe'/%3e%3c/svg%3e\");\n}\n.form-switch .form-check-input:checked {\n  background-position: right center;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e\");\n}\n\n.form-check-inline {\n  display: inline-block;\n  margin-right: 1rem;\n}\n\n.btn-check {\n  position: absolute;\n  clip: rect(0, 0, 0, 0);\n  pointer-events: none;\n}\n.btn-check[disabled] + .btn, .btn-check:disabled + .btn {\n  pointer-events: none;\n  filter: none;\n  opacity: 0.65;\n}\n\n.form-range {\n  width: 100%;\n  height: 1.5rem;\n  padding: 0;\n  background-color: transparent;\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n}\n.form-range:focus {\n  outline: 0;\n}\n.form-range:focus::-webkit-slider-thumb {\n  box-shadow: 0 0 0 1px #fff, 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-range:focus::-moz-range-thumb {\n  box-shadow: 0 0 0 1px #fff, 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.form-range::-moz-focus-outer {\n  border: 0;\n}\n.form-range::-webkit-slider-thumb {\n  width: 1rem;\n  height: 1rem;\n  margin-top: -0.25rem;\n  background-color: #0d6efd;\n  border: 0;\n  border-radius: 1rem;\n  -webkit-transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  -webkit-appearance: none;\n  appearance: none;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-range::-webkit-slider-thumb {\n    -webkit-transition: none;\n    transition: none;\n  }\n}\n.form-range::-webkit-slider-thumb:active {\n  background-color: #b6d4fe;\n}\n.form-range::-webkit-slider-runnable-track {\n  width: 100%;\n  height: 0.5rem;\n  color: transparent;\n  cursor: pointer;\n  background-color: #dee2e6;\n  border-color: transparent;\n  border-radius: 1rem;\n}\n.form-range::-moz-range-thumb {\n  width: 1rem;\n  height: 1rem;\n  background-color: #0d6efd;\n  border: 0;\n  border-radius: 1rem;\n  -moz-transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n  -moz-appearance: none;\n  appearance: none;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-range::-moz-range-thumb {\n    -moz-transition: none;\n    transition: none;\n  }\n}\n.form-range::-moz-range-thumb:active {\n  background-color: #b6d4fe;\n}\n.form-range::-moz-range-track {\n  width: 100%;\n  height: 0.5rem;\n  color: transparent;\n  cursor: pointer;\n  background-color: #dee2e6;\n  border-color: transparent;\n  border-radius: 1rem;\n}\n.form-range:disabled {\n  pointer-events: none;\n}\n.form-range:disabled::-webkit-slider-thumb {\n  background-color: #adb5bd;\n}\n.form-range:disabled::-moz-range-thumb {\n  background-color: #adb5bd;\n}\n\n.form-floating {\n  position: relative;\n}\n.form-floating > .form-control,\n.form-floating > .form-select {\n  height: calc(3.5rem + 2px);\n  line-height: 1.25;\n}\n.form-floating > label {\n  position: absolute;\n  top: 0;\n  left: 0;\n  height: 100%;\n  padding: 1rem 0.75rem;\n  pointer-events: none;\n  border: 1px solid transparent;\n  transform-origin: 0 0;\n  transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .form-floating > label {\n    transition: none;\n  }\n}\n.form-floating > .form-control {\n  padding: 1rem 0.75rem;\n}\n.form-floating > .form-control::-moz-placeholder {\n  color: transparent;\n}\n.form-floating > .form-control::placeholder {\n  color: transparent;\n}\n.form-floating > .form-control:not(:-moz-placeholder-shown) {\n  padding-top: 1.625rem;\n  padding-bottom: 0.625rem;\n}\n.form-floating > .form-control:focus, .form-floating > .form-control:not(:placeholder-shown) {\n  padding-top: 1.625rem;\n  padding-bottom: 0.625rem;\n}\n.form-floating > .form-control:-webkit-autofill {\n  padding-top: 1.625rem;\n  padding-bottom: 0.625rem;\n}\n.form-floating > .form-select {\n  padding-top: 1.625rem;\n  padding-bottom: 0.625rem;\n}\n.form-floating > .form-control:not(:-moz-placeholder-shown) ~ label {\n  opacity: 0.65;\n  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);\n}\n.form-floating > .form-control:focus ~ label,\n.form-floating > .form-control:not(:placeholder-shown) ~ label,\n.form-floating > .form-select ~ label {\n  opacity: 0.65;\n  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);\n}\n.form-floating > .form-control:-webkit-autofill ~ label {\n  opacity: 0.65;\n  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);\n}\n\n.input-group {\n  position: relative;\n  display: flex;\n  flex-wrap: wrap;\n  align-items: stretch;\n  width: 100%;\n}\n.input-group > .form-control,\n.input-group > .form-select {\n  position: relative;\n  flex: 1 1 auto;\n  width: 1%;\n  min-width: 0;\n}\n.input-group > .form-control:focus,\n.input-group > .form-select:focus {\n  z-index: 3;\n}\n.input-group .btn {\n  position: relative;\n  z-index: 2;\n}\n.input-group .btn:focus {\n  z-index: 3;\n}\n\n.input-group-text {\n  display: flex;\n  align-items: center;\n  padding: 0.375rem 0.75rem;\n  font-size: 1rem;\n  font-weight: 400;\n  line-height: 1.5;\n  color: #212529;\n  text-align: center;\n  white-space: nowrap;\n  background-color: #e9ecef;\n  border: 1px solid #ced4da;\n  border-radius: 0.25rem;\n}\n\n.input-group-lg > .form-control,\n.input-group-lg > .form-select,\n.input-group-lg > .input-group-text,\n.input-group-lg > .btn {\n  padding: 0.5rem 1rem;\n  font-size: 1.25rem;\n  border-radius: 0.3rem;\n}\n\n.input-group-sm > .form-control,\n.input-group-sm > .form-select,\n.input-group-sm > .input-group-text,\n.input-group-sm > .btn {\n  padding: 0.25rem 0.5rem;\n  font-size: 0.875rem;\n  border-radius: 0.2rem;\n}\n\n.input-group-lg > .form-select,\n.input-group-sm > .form-select {\n  padding-right: 3rem;\n}\n\n.input-group:not(.has-validation) > :not(:last-child):not(.dropdown-toggle):not(.dropdown-menu),\n.input-group:not(.has-validation) > .dropdown-toggle:nth-last-child(n+3) {\n  border-top-right-radius: 0;\n  border-bottom-right-radius: 0;\n}\n.input-group.has-validation > :nth-last-child(n+3):not(.dropdown-toggle):not(.dropdown-menu),\n.input-group.has-validation > .dropdown-toggle:nth-last-child(n+4) {\n  border-top-right-radius: 0;\n  border-bottom-right-radius: 0;\n}\n.input-group > :not(:first-child):not(.dropdown-menu):not(.valid-tooltip):not(.valid-feedback):not(.invalid-tooltip):not(.invalid-feedback) {\n  margin-left: -1px;\n  border-top-left-radius: 0;\n  border-bottom-left-radius: 0;\n}\n\n.valid-feedback {\n  display: none;\n  width: 100%;\n  margin-top: 0.25rem;\n  font-size: 0.875em;\n  color: #198754;\n}\n\n.valid-tooltip {\n  position: absolute;\n  top: 100%;\n  z-index: 5;\n  display: none;\n  max-width: 100%;\n  padding: 0.25rem 0.5rem;\n  margin-top: 0.1rem;\n  font-size: 0.875rem;\n  color: #fff;\n  background-color: rgba(25, 135, 84, 0.9);\n  border-radius: 0.25rem;\n}\n\n.was-validated :valid ~ .valid-feedback,\n.was-validated :valid ~ .valid-tooltip,\n.is-valid ~ .valid-feedback,\n.is-valid ~ .valid-tooltip {\n  display: block;\n}\n\n.was-validated .form-control:valid, .form-control.is-valid {\n  border-color: #198754;\n  padding-right: calc(1.5em + 0.75rem);\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%23198754' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e\");\n  background-repeat: no-repeat;\n  background-position: right calc(0.375em + 0.1875rem) center;\n  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);\n}\n.was-validated .form-control:valid:focus, .form-control.is-valid:focus {\n  border-color: #198754;\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);\n}\n\n.was-validated textarea.form-control:valid, textarea.form-control.is-valid {\n  padding-right: calc(1.5em + 0.75rem);\n  background-position: top calc(0.375em + 0.1875rem) right calc(0.375em + 0.1875rem);\n}\n\n.was-validated .form-select:valid, .form-select.is-valid {\n  border-color: #198754;\n}\n.was-validated .form-select:valid:not([multiple]):not([size]), .was-validated .form-select:valid:not([multiple])[size=\"1\"], .form-select.is-valid:not([multiple]):not([size]), .form-select.is-valid:not([multiple])[size=\"1\"] {\n  padding-right: 4.125rem;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e\"), url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%23198754' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e\");\n  background-position: right 0.75rem center, center right 2.25rem;\n  background-size: 16px 12px, calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);\n}\n.was-validated .form-select:valid:focus, .form-select.is-valid:focus {\n  border-color: #198754;\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);\n}\n\n.was-validated .form-check-input:valid, .form-check-input.is-valid {\n  border-color: #198754;\n}\n.was-validated .form-check-input:valid:checked, .form-check-input.is-valid:checked {\n  background-color: #198754;\n}\n.was-validated .form-check-input:valid:focus, .form-check-input.is-valid:focus {\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);\n}\n.was-validated .form-check-input:valid ~ .form-check-label, .form-check-input.is-valid ~ .form-check-label {\n  color: #198754;\n}\n\n.form-check-inline .form-check-input ~ .valid-feedback {\n  margin-left: 0.5em;\n}\n\n.was-validated .input-group .form-control:valid, .input-group .form-control.is-valid,\n.was-validated .input-group .form-select:valid,\n.input-group .form-select.is-valid {\n  z-index: 1;\n}\n.was-validated .input-group .form-control:valid:focus, .input-group .form-control.is-valid:focus,\n.was-validated .input-group .form-select:valid:focus,\n.input-group .form-select.is-valid:focus {\n  z-index: 3;\n}\n\n.invalid-feedback {\n  display: none;\n  width: 100%;\n  margin-top: 0.25rem;\n  font-size: 0.875em;\n  color: #dc3545;\n}\n\n.invalid-tooltip {\n  position: absolute;\n  top: 100%;\n  z-index: 5;\n  display: none;\n  max-width: 100%;\n  padding: 0.25rem 0.5rem;\n  margin-top: 0.1rem;\n  font-size: 0.875rem;\n  color: #fff;\n  background-color: rgba(220, 53, 69, 0.9);\n  border-radius: 0.25rem;\n}\n\n.was-validated :invalid ~ .invalid-feedback,\n.was-validated :invalid ~ .invalid-tooltip,\n.is-invalid ~ .invalid-feedback,\n.is-invalid ~ .invalid-tooltip {\n  display: block;\n}\n\n.was-validated .form-control:invalid, .form-control.is-invalid {\n  border-color: #dc3545;\n  padding-right: calc(1.5em + 0.75rem);\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e\");\n  background-repeat: no-repeat;\n  background-position: right calc(0.375em + 0.1875rem) center;\n  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);\n}\n.was-validated .form-control:invalid:focus, .form-control.is-invalid:focus {\n  border-color: #dc3545;\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);\n}\n\n.was-validated textarea.form-control:invalid, textarea.form-control.is-invalid {\n  padding-right: calc(1.5em + 0.75rem);\n  background-position: top calc(0.375em + 0.1875rem) right calc(0.375em + 0.1875rem);\n}\n\n.was-validated .form-select:invalid, .form-select.is-invalid {\n  border-color: #dc3545;\n}\n.was-validated .form-select:invalid:not([multiple]):not([size]), .was-validated .form-select:invalid:not([multiple])[size=\"1\"], .form-select.is-invalid:not([multiple]):not([size]), .form-select.is-invalid:not([multiple])[size=\"1\"] {\n  padding-right: 4.125rem;\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e\"), url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e\");\n  background-position: right 0.75rem center, center right 2.25rem;\n  background-size: 16px 12px, calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);\n}\n.was-validated .form-select:invalid:focus, .form-select.is-invalid:focus {\n  border-color: #dc3545;\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);\n}\n\n.was-validated .form-check-input:invalid, .form-check-input.is-invalid {\n  border-color: #dc3545;\n}\n.was-validated .form-check-input:invalid:checked, .form-check-input.is-invalid:checked {\n  background-color: #dc3545;\n}\n.was-validated .form-check-input:invalid:focus, .form-check-input.is-invalid:focus {\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);\n}\n.was-validated .form-check-input:invalid ~ .form-check-label, .form-check-input.is-invalid ~ .form-check-label {\n  color: #dc3545;\n}\n\n.form-check-inline .form-check-input ~ .invalid-feedback {\n  margin-left: 0.5em;\n}\n\n.was-validated .input-group .form-control:invalid, .input-group .form-control.is-invalid,\n.was-validated .input-group .form-select:invalid,\n.input-group .form-select.is-invalid {\n  z-index: 2;\n}\n.was-validated .input-group .form-control:invalid:focus, .input-group .form-control.is-invalid:focus,\n.was-validated .input-group .form-select:invalid:focus,\n.input-group .form-select.is-invalid:focus {\n  z-index: 3;\n}\n\n.btn {\n  display: inline-block;\n  font-weight: 400;\n  line-height: 1.5;\n  color: #212529;\n  text-align: center;\n  text-decoration: none;\n  vertical-align: middle;\n  cursor: pointer;\n  -webkit-user-select: none;\n  -moz-user-select: none;\n  user-select: none;\n  background-color: transparent;\n  border: 1px solid transparent;\n  padding: 0.375rem 0.75rem;\n  font-size: 1rem;\n  border-radius: 0.25rem;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .btn {\n    transition: none;\n  }\n}\n.btn:hover {\n  color: #212529;\n}\n.btn-check:focus + .btn, .btn:focus {\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n.btn:disabled, .btn.disabled, fieldset:disabled .btn {\n  pointer-events: none;\n  opacity: 0.65;\n}\n\n.btn-primary {\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.btn-primary:hover {\n  color: #fff;\n  background-color: #0b5ed7;\n  border-color: #0a58ca;\n}\n.btn-check:focus + .btn-primary, .btn-primary:focus {\n  color: #fff;\n  background-color: #0b5ed7;\n  border-color: #0a58ca;\n  box-shadow: 0 0 0 0.25rem rgba(49, 132, 253, 0.5);\n}\n.btn-check:checked + .btn-primary, .btn-check:active + .btn-primary, .btn-primary:active, .btn-primary.active, .show > .btn-primary.dropdown-toggle {\n  color: #fff;\n  background-color: #0a58ca;\n  border-color: #0a53be;\n}\n.btn-check:checked + .btn-primary:focus, .btn-check:active + .btn-primary:focus, .btn-primary:active:focus, .btn-primary.active:focus, .show > .btn-primary.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(49, 132, 253, 0.5);\n}\n.btn-primary:disabled, .btn-primary.disabled {\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n\n.btn-secondary {\n  color: #fff;\n  background-color: #6c757d;\n  border-color: #6c757d;\n}\n.btn-secondary:hover {\n  color: #fff;\n  background-color: #5c636a;\n  border-color: #565e64;\n}\n.btn-check:focus + .btn-secondary, .btn-secondary:focus {\n  color: #fff;\n  background-color: #5c636a;\n  border-color: #565e64;\n  box-shadow: 0 0 0 0.25rem rgba(130, 138, 145, 0.5);\n}\n.btn-check:checked + .btn-secondary, .btn-check:active + .btn-secondary, .btn-secondary:active, .btn-secondary.active, .show > .btn-secondary.dropdown-toggle {\n  color: #fff;\n  background-color: #565e64;\n  border-color: #51585e;\n}\n.btn-check:checked + .btn-secondary:focus, .btn-check:active + .btn-secondary:focus, .btn-secondary:active:focus, .btn-secondary.active:focus, .show > .btn-secondary.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(130, 138, 145, 0.5);\n}\n.btn-secondary:disabled, .btn-secondary.disabled {\n  color: #fff;\n  background-color: #6c757d;\n  border-color: #6c757d;\n}\n\n.btn-success {\n  color: #fff;\n  background-color: #198754;\n  border-color: #198754;\n}\n.btn-success:hover {\n  color: #fff;\n  background-color: #157347;\n  border-color: #146c43;\n}\n.btn-check:focus + .btn-success, .btn-success:focus {\n  color: #fff;\n  background-color: #157347;\n  border-color: #146c43;\n  box-shadow: 0 0 0 0.25rem rgba(60, 153, 110, 0.5);\n}\n.btn-check:checked + .btn-success, .btn-check:active + .btn-success, .btn-success:active, .btn-success.active, .show > .btn-success.dropdown-toggle {\n  color: #fff;\n  background-color: #146c43;\n  border-color: #13653f;\n}\n.btn-check:checked + .btn-success:focus, .btn-check:active + .btn-success:focus, .btn-success:active:focus, .btn-success.active:focus, .show > .btn-success.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(60, 153, 110, 0.5);\n}\n.btn-success:disabled, .btn-success.disabled {\n  color: #fff;\n  background-color: #198754;\n  border-color: #198754;\n}\n\n.btn-info {\n  color: #000;\n  background-color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n.btn-info:hover {\n  color: #000;\n  background-color: #31d2f2;\n  border-color: #25cff2;\n}\n.btn-check:focus + .btn-info, .btn-info:focus {\n  color: #000;\n  background-color: #31d2f2;\n  border-color: #25cff2;\n  box-shadow: 0 0 0 0.25rem rgba(11, 172, 204, 0.5);\n}\n.btn-check:checked + .btn-info, .btn-check:active + .btn-info, .btn-info:active, .btn-info.active, .show > .btn-info.dropdown-toggle {\n  color: #000;\n  background-color: #3dd5f3;\n  border-color: #25cff2;\n}\n.btn-check:checked + .btn-info:focus, .btn-check:active + .btn-info:focus, .btn-info:active:focus, .btn-info.active:focus, .show > .btn-info.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(11, 172, 204, 0.5);\n}\n.btn-info:disabled, .btn-info.disabled {\n  color: #000;\n  background-color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n\n.btn-warning {\n  color: #000;\n  background-color: #ffc107;\n  border-color: #ffc107;\n}\n.btn-warning:hover {\n  color: #000;\n  background-color: #ffca2c;\n  border-color: #ffc720;\n}\n.btn-check:focus + .btn-warning, .btn-warning:focus {\n  color: #000;\n  background-color: #ffca2c;\n  border-color: #ffc720;\n  box-shadow: 0 0 0 0.25rem rgba(217, 164, 6, 0.5);\n}\n.btn-check:checked + .btn-warning, .btn-check:active + .btn-warning, .btn-warning:active, .btn-warning.active, .show > .btn-warning.dropdown-toggle {\n  color: #000;\n  background-color: #ffcd39;\n  border-color: #ffc720;\n}\n.btn-check:checked + .btn-warning:focus, .btn-check:active + .btn-warning:focus, .btn-warning:active:focus, .btn-warning.active:focus, .show > .btn-warning.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(217, 164, 6, 0.5);\n}\n.btn-warning:disabled, .btn-warning.disabled {\n  color: #000;\n  background-color: #ffc107;\n  border-color: #ffc107;\n}\n\n.btn-danger {\n  color: #fff;\n  background-color: #dc3545;\n  border-color: #dc3545;\n}\n.btn-danger:hover {\n  color: #fff;\n  background-color: #bb2d3b;\n  border-color: #b02a37;\n}\n.btn-check:focus + .btn-danger, .btn-danger:focus {\n  color: #fff;\n  background-color: #bb2d3b;\n  border-color: #b02a37;\n  box-shadow: 0 0 0 0.25rem rgba(225, 83, 97, 0.5);\n}\n.btn-check:checked + .btn-danger, .btn-check:active + .btn-danger, .btn-danger:active, .btn-danger.active, .show > .btn-danger.dropdown-toggle {\n  color: #fff;\n  background-color: #b02a37;\n  border-color: #a52834;\n}\n.btn-check:checked + .btn-danger:focus, .btn-check:active + .btn-danger:focus, .btn-danger:active:focus, .btn-danger.active:focus, .show > .btn-danger.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(225, 83, 97, 0.5);\n}\n.btn-danger:disabled, .btn-danger.disabled {\n  color: #fff;\n  background-color: #dc3545;\n  border-color: #dc3545;\n}\n\n.btn-light {\n  color: #000;\n  background-color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n.btn-light:hover {\n  color: #000;\n  background-color: #f9fafb;\n  border-color: #f9fafb;\n}\n.btn-check:focus + .btn-light, .btn-light:focus {\n  color: #000;\n  background-color: #f9fafb;\n  border-color: #f9fafb;\n  box-shadow: 0 0 0 0.25rem rgba(211, 212, 213, 0.5);\n}\n.btn-check:checked + .btn-light, .btn-check:active + .btn-light, .btn-light:active, .btn-light.active, .show > .btn-light.dropdown-toggle {\n  color: #000;\n  background-color: #f9fafb;\n  border-color: #f9fafb;\n}\n.btn-check:checked + .btn-light:focus, .btn-check:active + .btn-light:focus, .btn-light:active:focus, .btn-light.active:focus, .show > .btn-light.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(211, 212, 213, 0.5);\n}\n.btn-light:disabled, .btn-light.disabled {\n  color: #000;\n  background-color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n\n.btn-dark {\n  color: #fff;\n  background-color: #212529;\n  border-color: #212529;\n}\n.btn-dark:hover {\n  color: #fff;\n  background-color: #1c1f23;\n  border-color: #1a1e21;\n}\n.btn-check:focus + .btn-dark, .btn-dark:focus {\n  color: #fff;\n  background-color: #1c1f23;\n  border-color: #1a1e21;\n  box-shadow: 0 0 0 0.25rem rgba(66, 70, 73, 0.5);\n}\n.btn-check:checked + .btn-dark, .btn-check:active + .btn-dark, .btn-dark:active, .btn-dark.active, .show > .btn-dark.dropdown-toggle {\n  color: #fff;\n  background-color: #1a1e21;\n  border-color: #191c1f;\n}\n.btn-check:checked + .btn-dark:focus, .btn-check:active + .btn-dark:focus, .btn-dark:active:focus, .btn-dark.active:focus, .show > .btn-dark.dropdown-toggle:focus {\n  box-shadow: 0 0 0 0.25rem rgba(66, 70, 73, 0.5);\n}\n.btn-dark:disabled, .btn-dark.disabled {\n  color: #fff;\n  background-color: #212529;\n  border-color: #212529;\n}\n\n.btn-outline-primary {\n  color: #0d6efd;\n  border-color: #0d6efd;\n}\n.btn-outline-primary:hover {\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.btn-check:focus + .btn-outline-primary, .btn-outline-primary:focus {\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.5);\n}\n.btn-check:checked + .btn-outline-primary, .btn-check:active + .btn-outline-primary, .btn-outline-primary:active, .btn-outline-primary.active, .btn-outline-primary.dropdown-toggle.show {\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.btn-check:checked + .btn-outline-primary:focus, .btn-check:active + .btn-outline-primary:focus, .btn-outline-primary:active:focus, .btn-outline-primary.active:focus, .btn-outline-primary.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.5);\n}\n.btn-outline-primary:disabled, .btn-outline-primary.disabled {\n  color: #0d6efd;\n  background-color: transparent;\n}\n\n.btn-outline-secondary {\n  color: #6c757d;\n  border-color: #6c757d;\n}\n.btn-outline-secondary:hover {\n  color: #fff;\n  background-color: #6c757d;\n  border-color: #6c757d;\n}\n.btn-check:focus + .btn-outline-secondary, .btn-outline-secondary:focus {\n  box-shadow: 0 0 0 0.25rem rgba(108, 117, 125, 0.5);\n}\n.btn-check:checked + .btn-outline-secondary, .btn-check:active + .btn-outline-secondary, .btn-outline-secondary:active, .btn-outline-secondary.active, .btn-outline-secondary.dropdown-toggle.show {\n  color: #fff;\n  background-color: #6c757d;\n  border-color: #6c757d;\n}\n.btn-check:checked + .btn-outline-secondary:focus, .btn-check:active + .btn-outline-secondary:focus, .btn-outline-secondary:active:focus, .btn-outline-secondary.active:focus, .btn-outline-secondary.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(108, 117, 125, 0.5);\n}\n.btn-outline-secondary:disabled, .btn-outline-secondary.disabled {\n  color: #6c757d;\n  background-color: transparent;\n}\n\n.btn-outline-success {\n  color: #198754;\n  border-color: #198754;\n}\n.btn-outline-success:hover {\n  color: #fff;\n  background-color: #198754;\n  border-color: #198754;\n}\n.btn-check:focus + .btn-outline-success, .btn-outline-success:focus {\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.5);\n}\n.btn-check:checked + .btn-outline-success, .btn-check:active + .btn-outline-success, .btn-outline-success:active, .btn-outline-success.active, .btn-outline-success.dropdown-toggle.show {\n  color: #fff;\n  background-color: #198754;\n  border-color: #198754;\n}\n.btn-check:checked + .btn-outline-success:focus, .btn-check:active + .btn-outline-success:focus, .btn-outline-success:active:focus, .btn-outline-success.active:focus, .btn-outline-success.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.5);\n}\n.btn-outline-success:disabled, .btn-outline-success.disabled {\n  color: #198754;\n  background-color: transparent;\n}\n\n.btn-outline-info {\n  color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n.btn-outline-info:hover {\n  color: #000;\n  background-color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n.btn-check:focus + .btn-outline-info, .btn-outline-info:focus {\n  box-shadow: 0 0 0 0.25rem rgba(13, 202, 240, 0.5);\n}\n.btn-check:checked + .btn-outline-info, .btn-check:active + .btn-outline-info, .btn-outline-info:active, .btn-outline-info.active, .btn-outline-info.dropdown-toggle.show {\n  color: #000;\n  background-color: #0dcaf0;\n  border-color: #0dcaf0;\n}\n.btn-check:checked + .btn-outline-info:focus, .btn-check:active + .btn-outline-info:focus, .btn-outline-info:active:focus, .btn-outline-info.active:focus, .btn-outline-info.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(13, 202, 240, 0.5);\n}\n.btn-outline-info:disabled, .btn-outline-info.disabled {\n  color: #0dcaf0;\n  background-color: transparent;\n}\n\n.btn-outline-warning {\n  color: #ffc107;\n  border-color: #ffc107;\n}\n.btn-outline-warning:hover {\n  color: #000;\n  background-color: #ffc107;\n  border-color: #ffc107;\n}\n.btn-check:focus + .btn-outline-warning, .btn-outline-warning:focus {\n  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.5);\n}\n.btn-check:checked + .btn-outline-warning, .btn-check:active + .btn-outline-warning, .btn-outline-warning:active, .btn-outline-warning.active, .btn-outline-warning.dropdown-toggle.show {\n  color: #000;\n  background-color: #ffc107;\n  border-color: #ffc107;\n}\n.btn-check:checked + .btn-outline-warning:focus, .btn-check:active + .btn-outline-warning:focus, .btn-outline-warning:active:focus, .btn-outline-warning.active:focus, .btn-outline-warning.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.5);\n}\n.btn-outline-warning:disabled, .btn-outline-warning.disabled {\n  color: #ffc107;\n  background-color: transparent;\n}\n\n.btn-outline-danger {\n  color: #dc3545;\n  border-color: #dc3545;\n}\n.btn-outline-danger:hover {\n  color: #fff;\n  background-color: #dc3545;\n  border-color: #dc3545;\n}\n.btn-check:focus + .btn-outline-danger, .btn-outline-danger:focus {\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.5);\n}\n.btn-check:checked + .btn-outline-danger, .btn-check:active + .btn-outline-danger, .btn-outline-danger:active, .btn-outline-danger.active, .btn-outline-danger.dropdown-toggle.show {\n  color: #fff;\n  background-color: #dc3545;\n  border-color: #dc3545;\n}\n.btn-check:checked + .btn-outline-danger:focus, .btn-check:active + .btn-outline-danger:focus, .btn-outline-danger:active:focus, .btn-outline-danger.active:focus, .btn-outline-danger.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.5);\n}\n.btn-outline-danger:disabled, .btn-outline-danger.disabled {\n  color: #dc3545;\n  background-color: transparent;\n}\n\n.btn-outline-light {\n  color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n.btn-outline-light:hover {\n  color: #000;\n  background-color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n.btn-check:focus + .btn-outline-light, .btn-outline-light:focus {\n  box-shadow: 0 0 0 0.25rem rgba(248, 249, 250, 0.5);\n}\n.btn-check:checked + .btn-outline-light, .btn-check:active + .btn-outline-light, .btn-outline-light:active, .btn-outline-light.active, .btn-outline-light.dropdown-toggle.show {\n  color: #000;\n  background-color: #f8f9fa;\n  border-color: #f8f9fa;\n}\n.btn-check:checked + .btn-outline-light:focus, .btn-check:active + .btn-outline-light:focus, .btn-outline-light:active:focus, .btn-outline-light.active:focus, .btn-outline-light.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(248, 249, 250, 0.5);\n}\n.btn-outline-light:disabled, .btn-outline-light.disabled {\n  color: #f8f9fa;\n  background-color: transparent;\n}\n\n.btn-outline-dark {\n  color: #212529;\n  border-color: #212529;\n}\n.btn-outline-dark:hover {\n  color: #fff;\n  background-color: #212529;\n  border-color: #212529;\n}\n.btn-check:focus + .btn-outline-dark, .btn-outline-dark:focus {\n  box-shadow: 0 0 0 0.25rem rgba(33, 37, 41, 0.5);\n}\n.btn-check:checked + .btn-outline-dark, .btn-check:active + .btn-outline-dark, .btn-outline-dark:active, .btn-outline-dark.active, .btn-outline-dark.dropdown-toggle.show {\n  color: #fff;\n  background-color: #212529;\n  border-color: #212529;\n}\n.btn-check:checked + .btn-outline-dark:focus, .btn-check:active + .btn-outline-dark:focus, .btn-outline-dark:active:focus, .btn-outline-dark.active:focus, .btn-outline-dark.dropdown-toggle.show:focus {\n  box-shadow: 0 0 0 0.25rem rgba(33, 37, 41, 0.5);\n}\n.btn-outline-dark:disabled, .btn-outline-dark.disabled {\n  color: #212529;\n  background-color: transparent;\n}\n\n.btn-link {\n  font-weight: 400;\n  color: #0d6efd;\n  text-decoration: underline;\n}\n.btn-link:hover {\n  color: #0a58ca;\n}\n.btn-link:disabled, .btn-link.disabled {\n  color: #6c757d;\n}\n\n.btn-lg, .btn-group-lg > .btn {\n  padding: 0.5rem 1rem;\n  font-size: 1.25rem;\n  border-radius: 0.3rem;\n}\n\n.btn-sm, .btn-group-sm > .btn {\n  padding: 0.25rem 0.5rem;\n  font-size: 0.875rem;\n  border-radius: 0.2rem;\n}\n\n.fade {\n  transition: opacity 0.15s linear;\n}\n@media (prefers-reduced-motion: reduce) {\n  .fade {\n    transition: none;\n  }\n}\n.fade:not(.show) {\n  opacity: 0;\n}\n\n.collapse:not(.show) {\n  display: none;\n}\n\n.collapsing {\n  height: 0;\n  overflow: hidden;\n  transition: height 0.35s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .collapsing {\n    transition: none;\n  }\n}\n.collapsing.collapse-horizontal {\n  width: 0;\n  height: auto;\n  transition: width 0.35s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .collapsing.collapse-horizontal {\n    transition: none;\n  }\n}\n\n.dropup,\n.dropend,\n.dropdown,\n.dropstart {\n  position: relative;\n}\n\n.dropdown-toggle {\n  white-space: nowrap;\n}\n.dropdown-toggle::after {\n  display: inline-block;\n  margin-left: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n  border-top: 0.3em solid;\n  border-right: 0.3em solid transparent;\n  border-bottom: 0;\n  border-left: 0.3em solid transparent;\n}\n.dropdown-toggle:empty::after {\n  margin-left: 0;\n}\n\n.dropdown-menu {\n  position: absolute;\n  z-index: 1000;\n  display: none;\n  min-width: 10rem;\n  padding: 0.5rem 0;\n  margin: 0;\n  font-size: 1rem;\n  color: #212529;\n  text-align: left;\n  list-style: none;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 1px solid rgba(0, 0, 0, 0.15);\n  border-radius: 0.25rem;\n}\n.dropdown-menu[data-bs-popper] {\n  top: 100%;\n  left: 0;\n  margin-top: 0.125rem;\n}\n\n.dropdown-menu-start {\n  --bs-position: start;\n}\n.dropdown-menu-start[data-bs-popper] {\n  right: auto;\n  left: 0;\n}\n\n.dropdown-menu-end {\n  --bs-position: end;\n}\n.dropdown-menu-end[data-bs-popper] {\n  right: 0;\n  left: auto;\n}\n\n@media (min-width: 576px) {\n  .dropdown-menu-sm-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-sm-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-sm-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-sm-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n@media (min-width: 768px) {\n  .dropdown-menu-md-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-md-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-md-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-md-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n@media (min-width: 992px) {\n  .dropdown-menu-lg-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-lg-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-lg-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-lg-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n@media (min-width: 1200px) {\n  .dropdown-menu-xl-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-xl-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-xl-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-xl-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n@media (min-width: 1400px) {\n  .dropdown-menu-xxl-start {\n    --bs-position: start;\n  }\n  .dropdown-menu-xxl-start[data-bs-popper] {\n    right: auto;\n    left: 0;\n  }\n\n  .dropdown-menu-xxl-end {\n    --bs-position: end;\n  }\n  .dropdown-menu-xxl-end[data-bs-popper] {\n    right: 0;\n    left: auto;\n  }\n}\n.dropup .dropdown-menu[data-bs-popper] {\n  top: auto;\n  bottom: 100%;\n  margin-top: 0;\n  margin-bottom: 0.125rem;\n}\n.dropup .dropdown-toggle::after {\n  display: inline-block;\n  margin-left: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n  border-top: 0;\n  border-right: 0.3em solid transparent;\n  border-bottom: 0.3em solid;\n  border-left: 0.3em solid transparent;\n}\n.dropup .dropdown-toggle:empty::after {\n  margin-left: 0;\n}\n\n.dropend .dropdown-menu[data-bs-popper] {\n  top: 0;\n  right: auto;\n  left: 100%;\n  margin-top: 0;\n  margin-left: 0.125rem;\n}\n.dropend .dropdown-toggle::after {\n  display: inline-block;\n  margin-left: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n  border-top: 0.3em solid transparent;\n  border-right: 0;\n  border-bottom: 0.3em solid transparent;\n  border-left: 0.3em solid;\n}\n.dropend .dropdown-toggle:empty::after {\n  margin-left: 0;\n}\n.dropend .dropdown-toggle::after {\n  vertical-align: 0;\n}\n\n.dropstart .dropdown-menu[data-bs-popper] {\n  top: 0;\n  right: 100%;\n  left: auto;\n  margin-top: 0;\n  margin-right: 0.125rem;\n}\n.dropstart .dropdown-toggle::after {\n  display: inline-block;\n  margin-left: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n}\n.dropstart .dropdown-toggle::after {\n  display: none;\n}\n.dropstart .dropdown-toggle::before {\n  display: inline-block;\n  margin-right: 0.255em;\n  vertical-align: 0.255em;\n  content: \"\";\n  border-top: 0.3em solid transparent;\n  border-right: 0.3em solid;\n  border-bottom: 0.3em solid transparent;\n}\n.dropstart .dropdown-toggle:empty::after {\n  margin-left: 0;\n}\n.dropstart .dropdown-toggle::before {\n  vertical-align: 0;\n}\n\n.dropdown-divider {\n  height: 0;\n  margin: 0.5rem 0;\n  overflow: hidden;\n  border-top: 1px solid rgba(0, 0, 0, 0.15);\n}\n\n.dropdown-item {\n  display: block;\n  width: 100%;\n  padding: 0.25rem 1rem;\n  clear: both;\n  font-weight: 400;\n  color: #212529;\n  text-align: inherit;\n  text-decoration: none;\n  white-space: nowrap;\n  background-color: transparent;\n  border: 0;\n}\n.dropdown-item:hover, .dropdown-item:focus {\n  color: #1e2125;\n  background-color: #e9ecef;\n}\n.dropdown-item.active, .dropdown-item:active {\n  color: #fff;\n  text-decoration: none;\n  background-color: #0d6efd;\n}\n.dropdown-item.disabled, .dropdown-item:disabled {\n  color: #adb5bd;\n  pointer-events: none;\n  background-color: transparent;\n}\n\n.dropdown-menu.show {\n  display: block;\n}\n\n.dropdown-header {\n  display: block;\n  padding: 0.5rem 1rem;\n  margin-bottom: 0;\n  font-size: 0.875rem;\n  color: #6c757d;\n  white-space: nowrap;\n}\n\n.dropdown-item-text {\n  display: block;\n  padding: 0.25rem 1rem;\n  color: #212529;\n}\n\n.dropdown-menu-dark {\n  color: #dee2e6;\n  background-color: #343a40;\n  border-color: rgba(0, 0, 0, 0.15);\n}\n.dropdown-menu-dark .dropdown-item {\n  color: #dee2e6;\n}\n.dropdown-menu-dark .dropdown-item:hover, .dropdown-menu-dark .dropdown-item:focus {\n  color: #fff;\n  background-color: rgba(255, 255, 255, 0.15);\n}\n.dropdown-menu-dark .dropdown-item.active, .dropdown-menu-dark .dropdown-item:active {\n  color: #fff;\n  background-color: #0d6efd;\n}\n.dropdown-menu-dark .dropdown-item.disabled, .dropdown-menu-dark .dropdown-item:disabled {\n  color: #adb5bd;\n}\n.dropdown-menu-dark .dropdown-divider {\n  border-color: rgba(0, 0, 0, 0.15);\n}\n.dropdown-menu-dark .dropdown-item-text {\n  color: #dee2e6;\n}\n.dropdown-menu-dark .dropdown-header {\n  color: #adb5bd;\n}\n\n.btn-group,\n.btn-group-vertical {\n  position: relative;\n  display: inline-flex;\n  vertical-align: middle;\n}\n.btn-group > .btn,\n.btn-group-vertical > .btn {\n  position: relative;\n  flex: 1 1 auto;\n}\n.btn-group > .btn-check:checked + .btn,\n.btn-group > .btn-check:focus + .btn,\n.btn-group > .btn:hover,\n.btn-group > .btn:focus,\n.btn-group > .btn:active,\n.btn-group > .btn.active,\n.btn-group-vertical > .btn-check:checked + .btn,\n.btn-group-vertical > .btn-check:focus + .btn,\n.btn-group-vertical > .btn:hover,\n.btn-group-vertical > .btn:focus,\n.btn-group-vertical > .btn:active,\n.btn-group-vertical > .btn.active {\n  z-index: 1;\n}\n\n.btn-toolbar {\n  display: flex;\n  flex-wrap: wrap;\n  justify-content: flex-start;\n}\n.btn-toolbar .input-group {\n  width: auto;\n}\n\n.btn-group > .btn:not(:first-child),\n.btn-group > .btn-group:not(:first-child) {\n  margin-left: -1px;\n}\n.btn-group > .btn:not(:last-child):not(.dropdown-toggle),\n.btn-group > .btn-group:not(:last-child) > .btn {\n  border-top-right-radius: 0;\n  border-bottom-right-radius: 0;\n}\n.btn-group > .btn:nth-child(n+3),\n.btn-group > :not(.btn-check) + .btn,\n.btn-group > .btn-group:not(:first-child) > .btn {\n  border-top-left-radius: 0;\n  border-bottom-left-radius: 0;\n}\n\n.dropdown-toggle-split {\n  padding-right: 0.5625rem;\n  padding-left: 0.5625rem;\n}\n.dropdown-toggle-split::after, .dropup .dropdown-toggle-split::after, .dropend .dropdown-toggle-split::after {\n  margin-left: 0;\n}\n.dropstart .dropdown-toggle-split::before {\n  margin-right: 0;\n}\n\n.btn-sm + .dropdown-toggle-split, .btn-group-sm > .btn + .dropdown-toggle-split {\n  padding-right: 0.375rem;\n  padding-left: 0.375rem;\n}\n\n.btn-lg + .dropdown-toggle-split, .btn-group-lg > .btn + .dropdown-toggle-split {\n  padding-right: 0.75rem;\n  padding-left: 0.75rem;\n}\n\n.btn-group-vertical {\n  flex-direction: column;\n  align-items: flex-start;\n  justify-content: center;\n}\n.btn-group-vertical > .btn,\n.btn-group-vertical > .btn-group {\n  width: 100%;\n}\n.btn-group-vertical > .btn:not(:first-child),\n.btn-group-vertical > .btn-group:not(:first-child) {\n  margin-top: -1px;\n}\n.btn-group-vertical > .btn:not(:last-child):not(.dropdown-toggle),\n.btn-group-vertical > .btn-group:not(:last-child) > .btn {\n  border-bottom-right-radius: 0;\n  border-bottom-left-radius: 0;\n}\n.btn-group-vertical > .btn ~ .btn,\n.btn-group-vertical > .btn-group:not(:first-child) > .btn {\n  border-top-left-radius: 0;\n  border-top-right-radius: 0;\n}\n\n.nav {\n  display: flex;\n  flex-wrap: wrap;\n  padding-left: 0;\n  margin-bottom: 0;\n  list-style: none;\n}\n\n.nav-link {\n  display: block;\n  padding: 0.5rem 1rem;\n  color: #0d6efd;\n  text-decoration: none;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .nav-link {\n    transition: none;\n  }\n}\n.nav-link:hover, .nav-link:focus {\n  color: #0a58ca;\n}\n.nav-link.disabled {\n  color: #6c757d;\n  pointer-events: none;\n  cursor: default;\n}\n\n.nav-tabs {\n  border-bottom: 1px solid #dee2e6;\n}\n.nav-tabs .nav-link {\n  margin-bottom: -1px;\n  background: none;\n  border: 1px solid transparent;\n  border-top-left-radius: 0.25rem;\n  border-top-right-radius: 0.25rem;\n}\n.nav-tabs .nav-link:hover, .nav-tabs .nav-link:focus {\n  border-color: #e9ecef #e9ecef #dee2e6;\n  isolation: isolate;\n}\n.nav-tabs .nav-link.disabled {\n  color: #6c757d;\n  background-color: transparent;\n  border-color: transparent;\n}\n.nav-tabs .nav-link.active,\n.nav-tabs .nav-item.show .nav-link {\n  color: #495057;\n  background-color: #fff;\n  border-color: #dee2e6 #dee2e6 #fff;\n}\n.nav-tabs .dropdown-menu {\n  margin-top: -1px;\n  border-top-left-radius: 0;\n  border-top-right-radius: 0;\n}\n\n.nav-pills .nav-link {\n  background: none;\n  border: 0;\n  border-radius: 0.25rem;\n}\n.nav-pills .nav-link.active,\n.nav-pills .show > .nav-link {\n  color: #fff;\n  background-color: #0d6efd;\n}\n\n.nav-fill > .nav-link,\n.nav-fill .nav-item {\n  flex: 1 1 auto;\n  text-align: center;\n}\n\n.nav-justified > .nav-link,\n.nav-justified .nav-item {\n  flex-basis: 0;\n  flex-grow: 1;\n  text-align: center;\n}\n\n.nav-fill .nav-item .nav-link,\n.nav-justified .nav-item .nav-link {\n  width: 100%;\n}\n\n.tab-content > .tab-pane {\n  display: none;\n}\n.tab-content > .active {\n  display: block;\n}\n\n.navbar {\n  position: relative;\n  display: flex;\n  flex-wrap: wrap;\n  align-items: center;\n  justify-content: space-between;\n  padding-top: 0.5rem;\n  padding-bottom: 0.5rem;\n}\n.navbar > .container,\n.navbar > .container-fluid,\n.navbar > .container-sm,\n.navbar > .container-md,\n.navbar > .container-lg,\n.navbar > .container-xl,\n.navbar > .container-xxl {\n  display: flex;\n  flex-wrap: inherit;\n  align-items: center;\n  justify-content: space-between;\n}\n.navbar-brand {\n  padding-top: 0.3125rem;\n  padding-bottom: 0.3125rem;\n  margin-right: 1rem;\n  font-size: 1.25rem;\n  text-decoration: none;\n  white-space: nowrap;\n}\n.navbar-nav {\n  display: flex;\n  flex-direction: column;\n  padding-left: 0;\n  margin-bottom: 0;\n  list-style: none;\n}\n.navbar-nav .nav-link {\n  padding-right: 0;\n  padding-left: 0;\n}\n.navbar-nav .dropdown-menu {\n  position: static;\n}\n\n.navbar-text {\n  padding-top: 0.5rem;\n  padding-bottom: 0.5rem;\n}\n\n.navbar-collapse {\n  flex-basis: 100%;\n  flex-grow: 1;\n  align-items: center;\n}\n\n.navbar-toggler {\n  padding: 0.25rem 0.75rem;\n  font-size: 1.25rem;\n  line-height: 1;\n  background-color: transparent;\n  border: 1px solid transparent;\n  border-radius: 0.25rem;\n  transition: box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .navbar-toggler {\n    transition: none;\n  }\n}\n.navbar-toggler:hover {\n  text-decoration: none;\n}\n.navbar-toggler:focus {\n  text-decoration: none;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem;\n}\n\n.navbar-toggler-icon {\n  display: inline-block;\n  width: 1.5em;\n  height: 1.5em;\n  vertical-align: middle;\n  background-repeat: no-repeat;\n  background-position: center;\n  background-size: 100%;\n}\n\n.navbar-nav-scroll {\n  max-height: var(--bs-scroll-height, 75vh);\n  overflow-y: auto;\n}\n\n@media (min-width: 576px) {\n  .navbar-expand-sm {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-sm .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-sm .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-sm .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-sm .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-sm .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-sm .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-sm .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-sm .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-sm .offcanvas-top,\n.navbar-expand-sm .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-sm .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n@media (min-width: 768px) {\n  .navbar-expand-md {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-md .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-md .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-md .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-md .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-md .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-md .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-md .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-md .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-md .offcanvas-top,\n.navbar-expand-md .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-md .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n@media (min-width: 992px) {\n  .navbar-expand-lg {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-lg .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-lg .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-lg .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-lg .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-lg .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-lg .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-lg .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-lg .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-lg .offcanvas-top,\n.navbar-expand-lg .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-lg .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n@media (min-width: 1200px) {\n  .navbar-expand-xl {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-xl .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-xl .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-xl .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-xl .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-xl .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-xl .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-xl .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-xl .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-xl .offcanvas-top,\n.navbar-expand-xl .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-xl .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n@media (min-width: 1400px) {\n  .navbar-expand-xxl {\n    flex-wrap: nowrap;\n    justify-content: flex-start;\n  }\n  .navbar-expand-xxl .navbar-nav {\n    flex-direction: row;\n  }\n  .navbar-expand-xxl .navbar-nav .dropdown-menu {\n    position: absolute;\n  }\n  .navbar-expand-xxl .navbar-nav .nav-link {\n    padding-right: 0.5rem;\n    padding-left: 0.5rem;\n  }\n  .navbar-expand-xxl .navbar-nav-scroll {\n    overflow: visible;\n  }\n  .navbar-expand-xxl .navbar-collapse {\n    display: flex !important;\n    flex-basis: auto;\n  }\n  .navbar-expand-xxl .navbar-toggler {\n    display: none;\n  }\n  .navbar-expand-xxl .offcanvas-header {\n    display: none;\n  }\n  .navbar-expand-xxl .offcanvas {\n    position: inherit;\n    bottom: 0;\n    z-index: 1000;\n    flex-grow: 1;\n    visibility: visible !important;\n    background-color: transparent;\n    border-right: 0;\n    border-left: 0;\n    transition: none;\n    transform: none;\n  }\n  .navbar-expand-xxl .offcanvas-top,\n.navbar-expand-xxl .offcanvas-bottom {\n    height: auto;\n    border-top: 0;\n    border-bottom: 0;\n  }\n  .navbar-expand-xxl .offcanvas-body {\n    display: flex;\n    flex-grow: 0;\n    padding: 0;\n    overflow-y: visible;\n  }\n}\n.navbar-expand {\n  flex-wrap: nowrap;\n  justify-content: flex-start;\n}\n.navbar-expand .navbar-nav {\n  flex-direction: row;\n}\n.navbar-expand .navbar-nav .dropdown-menu {\n  position: absolute;\n}\n.navbar-expand .navbar-nav .nav-link {\n  padding-right: 0.5rem;\n  padding-left: 0.5rem;\n}\n.navbar-expand .navbar-nav-scroll {\n  overflow: visible;\n}\n.navbar-expand .navbar-collapse {\n  display: flex !important;\n  flex-basis: auto;\n}\n.navbar-expand .navbar-toggler {\n  display: none;\n}\n.navbar-expand .offcanvas-header {\n  display: none;\n}\n.navbar-expand .offcanvas {\n  position: inherit;\n  bottom: 0;\n  z-index: 1000;\n  flex-grow: 1;\n  visibility: visible !important;\n  background-color: transparent;\n  border-right: 0;\n  border-left: 0;\n  transition: none;\n  transform: none;\n}\n.navbar-expand .offcanvas-top,\n.navbar-expand .offcanvas-bottom {\n  height: auto;\n  border-top: 0;\n  border-bottom: 0;\n}\n.navbar-expand .offcanvas-body {\n  display: flex;\n  flex-grow: 0;\n  padding: 0;\n  overflow-y: visible;\n}\n\n.navbar-light .navbar-brand {\n  color: rgba(0, 0, 0, 0.9);\n}\n.navbar-light .navbar-brand:hover, .navbar-light .navbar-brand:focus {\n  color: rgba(0, 0, 0, 0.9);\n}\n.navbar-light .navbar-nav .nav-link {\n  color: rgba(0, 0, 0, 0.55);\n}\n.navbar-light .navbar-nav .nav-link:hover, .navbar-light .navbar-nav .nav-link:focus {\n  color: rgba(0, 0, 0, 0.7);\n}\n.navbar-light .navbar-nav .nav-link.disabled {\n  color: rgba(0, 0, 0, 0.3);\n}\n.navbar-light .navbar-nav .show > .nav-link,\n.navbar-light .navbar-nav .nav-link.active {\n  color: rgba(0, 0, 0, 0.9);\n}\n.navbar-light .navbar-toggler {\n  color: rgba(0, 0, 0, 0.55);\n  border-color: rgba(0, 0, 0, 0.1);\n}\n.navbar-light .navbar-toggler-icon {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280, 0, 0, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e\");\n}\n.navbar-light .navbar-text {\n  color: rgba(0, 0, 0, 0.55);\n}\n.navbar-light .navbar-text a,\n.navbar-light .navbar-text a:hover,\n.navbar-light .navbar-text a:focus {\n  color: rgba(0, 0, 0, 0.9);\n}\n\n.navbar-dark .navbar-brand {\n  color: #fff;\n}\n.navbar-dark .navbar-brand:hover, .navbar-dark .navbar-brand:focus {\n  color: #fff;\n}\n.navbar-dark .navbar-nav .nav-link {\n  color: rgba(255, 255, 255, 0.55);\n}\n.navbar-dark .navbar-nav .nav-link:hover, .navbar-dark .navbar-nav .nav-link:focus {\n  color: rgba(255, 255, 255, 0.75);\n}\n.navbar-dark .navbar-nav .nav-link.disabled {\n  color: rgba(255, 255, 255, 0.25);\n}\n.navbar-dark .navbar-nav .show > .nav-link,\n.navbar-dark .navbar-nav .nav-link.active {\n  color: #fff;\n}\n.navbar-dark .navbar-toggler {\n  color: rgba(255, 255, 255, 0.55);\n  border-color: rgba(255, 255, 255, 0.1);\n}\n.navbar-dark .navbar-toggler-icon {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e\");\n}\n.navbar-dark .navbar-text {\n  color: rgba(255, 255, 255, 0.55);\n}\n.navbar-dark .navbar-text a,\n.navbar-dark .navbar-text a:hover,\n.navbar-dark .navbar-text a:focus {\n  color: #fff;\n}\n\n.card {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  min-width: 0;\n  word-wrap: break-word;\n  background-color: #fff;\n  background-clip: border-box;\n  border: 1px solid rgba(0, 0, 0, 0.125);\n  border-radius: 0.25rem;\n}\n.card > hr {\n  margin-right: 0;\n  margin-left: 0;\n}\n.card > .list-group {\n  border-top: inherit;\n  border-bottom: inherit;\n}\n.card > .list-group:first-child {\n  border-top-width: 0;\n  border-top-left-radius: calc(0.25rem - 1px);\n  border-top-right-radius: calc(0.25rem - 1px);\n}\n.card > .list-group:last-child {\n  border-bottom-width: 0;\n  border-bottom-right-radius: calc(0.25rem - 1px);\n  border-bottom-left-radius: calc(0.25rem - 1px);\n}\n.card > .card-header + .list-group,\n.card > .list-group + .card-footer {\n  border-top: 0;\n}\n\n.card-body {\n  flex: 1 1 auto;\n  padding: 1rem 1rem;\n}\n\n.card-title {\n  margin-bottom: 0.5rem;\n}\n\n.card-subtitle {\n  margin-top: -0.25rem;\n  margin-bottom: 0;\n}\n\n.card-text:last-child {\n  margin-bottom: 0;\n}\n\n.card-link + .card-link {\n  margin-left: 1rem;\n}\n\n.card-header {\n  padding: 0.5rem 1rem;\n  margin-bottom: 0;\n  background-color: rgba(0, 0, 0, 0.03);\n  border-bottom: 1px solid rgba(0, 0, 0, 0.125);\n}\n.card-header:first-child {\n  border-radius: calc(0.25rem - 1px) calc(0.25rem - 1px) 0 0;\n}\n\n.card-footer {\n  padding: 0.5rem 1rem;\n  background-color: rgba(0, 0, 0, 0.03);\n  border-top: 1px solid rgba(0, 0, 0, 0.125);\n}\n.card-footer:last-child {\n  border-radius: 0 0 calc(0.25rem - 1px) calc(0.25rem - 1px);\n}\n\n.card-header-tabs {\n  margin-right: -0.5rem;\n  margin-bottom: -0.5rem;\n  margin-left: -0.5rem;\n  border-bottom: 0;\n}\n\n.card-header-pills {\n  margin-right: -0.5rem;\n  margin-left: -0.5rem;\n}\n\n.card-img-overlay {\n  position: absolute;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  padding: 1rem;\n  border-radius: calc(0.25rem - 1px);\n}\n\n.card-img,\n.card-img-top,\n.card-img-bottom {\n  width: 100%;\n}\n\n.card-img,\n.card-img-top {\n  border-top-left-radius: calc(0.25rem - 1px);\n  border-top-right-radius: calc(0.25rem - 1px);\n}\n\n.card-img,\n.card-img-bottom {\n  border-bottom-right-radius: calc(0.25rem - 1px);\n  border-bottom-left-radius: calc(0.25rem - 1px);\n}\n\n.card-group > .card {\n  margin-bottom: 0.75rem;\n}\n@media (min-width: 576px) {\n  .card-group {\n    display: flex;\n    flex-flow: row wrap;\n  }\n  .card-group > .card {\n    flex: 1 0 0%;\n    margin-bottom: 0;\n  }\n  .card-group > .card + .card {\n    margin-left: 0;\n    border-left: 0;\n  }\n  .card-group > .card:not(:last-child) {\n    border-top-right-radius: 0;\n    border-bottom-right-radius: 0;\n  }\n  .card-group > .card:not(:last-child) .card-img-top,\n.card-group > .card:not(:last-child) .card-header {\n    border-top-right-radius: 0;\n  }\n  .card-group > .card:not(:last-child) .card-img-bottom,\n.card-group > .card:not(:last-child) .card-footer {\n    border-bottom-right-radius: 0;\n  }\n  .card-group > .card:not(:first-child) {\n    border-top-left-radius: 0;\n    border-bottom-left-radius: 0;\n  }\n  .card-group > .card:not(:first-child) .card-img-top,\n.card-group > .card:not(:first-child) .card-header {\n    border-top-left-radius: 0;\n  }\n  .card-group > .card:not(:first-child) .card-img-bottom,\n.card-group > .card:not(:first-child) .card-footer {\n    border-bottom-left-radius: 0;\n  }\n}\n\n.accordion-button {\n  position: relative;\n  display: flex;\n  align-items: center;\n  width: 100%;\n  padding: 1rem 1.25rem;\n  font-size: 1rem;\n  color: #212529;\n  text-align: left;\n  background-color: #fff;\n  border: 0;\n  border-radius: 0;\n  overflow-anchor: none;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, border-radius 0.15s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .accordion-button {\n    transition: none;\n  }\n}\n.accordion-button:not(.collapsed) {\n  color: #0c63e4;\n  background-color: #e7f1ff;\n  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.125);\n}\n.accordion-button:not(.collapsed)::after {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230c63e4'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e\");\n  transform: rotate(-180deg);\n}\n.accordion-button::after {\n  flex-shrink: 0;\n  width: 1.25rem;\n  height: 1.25rem;\n  margin-left: auto;\n  content: \"\";\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23212529'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e\");\n  background-repeat: no-repeat;\n  background-size: 1.25rem;\n  transition: transform 0.2s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .accordion-button::after {\n    transition: none;\n  }\n}\n.accordion-button:hover {\n  z-index: 2;\n}\n.accordion-button:focus {\n  z-index: 3;\n  border-color: #86b7fe;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n\n.accordion-header {\n  margin-bottom: 0;\n}\n\n.accordion-item {\n  background-color: #fff;\n  border: 1px solid rgba(0, 0, 0, 0.125);\n}\n.accordion-item:first-of-type {\n  border-top-left-radius: 0.25rem;\n  border-top-right-radius: 0.25rem;\n}\n.accordion-item:first-of-type .accordion-button {\n  border-top-left-radius: calc(0.25rem - 1px);\n  border-top-right-radius: calc(0.25rem - 1px);\n}\n.accordion-item:not(:first-of-type) {\n  border-top: 0;\n}\n.accordion-item:last-of-type {\n  border-bottom-right-radius: 0.25rem;\n  border-bottom-left-radius: 0.25rem;\n}\n.accordion-item:last-of-type .accordion-button.collapsed {\n  border-bottom-right-radius: calc(0.25rem - 1px);\n  border-bottom-left-radius: calc(0.25rem - 1px);\n}\n.accordion-item:last-of-type .accordion-collapse {\n  border-bottom-right-radius: 0.25rem;\n  border-bottom-left-radius: 0.25rem;\n}\n\n.accordion-body {\n  padding: 1rem 1.25rem;\n}\n\n.accordion-flush .accordion-collapse {\n  border-width: 0;\n}\n.accordion-flush .accordion-item {\n  border-right: 0;\n  border-left: 0;\n  border-radius: 0;\n}\n.accordion-flush .accordion-item:first-child {\n  border-top: 0;\n}\n.accordion-flush .accordion-item:last-child {\n  border-bottom: 0;\n}\n.accordion-flush .accordion-item .accordion-button {\n  border-radius: 0;\n}\n\n.breadcrumb {\n  display: flex;\n  flex-wrap: wrap;\n  padding: 0 0;\n  margin-bottom: 1rem;\n  list-style: none;\n}\n\n.breadcrumb-item + .breadcrumb-item {\n  padding-left: 0.5rem;\n}\n.breadcrumb-item + .breadcrumb-item::before {\n  float: left;\n  padding-right: 0.5rem;\n  color: #6c757d;\n  content: var(--bs-breadcrumb-divider, \"/\") /* rtl: var(--bs-breadcrumb-divider, \"/\") */;\n}\n.breadcrumb-item.active {\n  color: #6c757d;\n}\n\n.pagination {\n  display: flex;\n  padding-left: 0;\n  list-style: none;\n}\n\n.page-link {\n  position: relative;\n  display: block;\n  color: #0d6efd;\n  text-decoration: none;\n  background-color: #fff;\n  border: 1px solid #dee2e6;\n  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .page-link {\n    transition: none;\n  }\n}\n.page-link:hover {\n  z-index: 2;\n  color: #0a58ca;\n  background-color: #e9ecef;\n  border-color: #dee2e6;\n}\n.page-link:focus {\n  z-index: 3;\n  color: #0a58ca;\n  background-color: #e9ecef;\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n}\n\n.page-item:not(:first-child) .page-link {\n  margin-left: -1px;\n}\n.page-item.active .page-link {\n  z-index: 3;\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.page-item.disabled .page-link {\n  color: #6c757d;\n  pointer-events: none;\n  background-color: #fff;\n  border-color: #dee2e6;\n}\n\n.page-link {\n  padding: 0.375rem 0.75rem;\n}\n\n.page-item:first-child .page-link {\n  border-top-left-radius: 0.25rem;\n  border-bottom-left-radius: 0.25rem;\n}\n.page-item:last-child .page-link {\n  border-top-right-radius: 0.25rem;\n  border-bottom-right-radius: 0.25rem;\n}\n\n.pagination-lg .page-link {\n  padding: 0.75rem 1.5rem;\n  font-size: 1.25rem;\n}\n.pagination-lg .page-item:first-child .page-link {\n  border-top-left-radius: 0.3rem;\n  border-bottom-left-radius: 0.3rem;\n}\n.pagination-lg .page-item:last-child .page-link {\n  border-top-right-radius: 0.3rem;\n  border-bottom-right-radius: 0.3rem;\n}\n\n.pagination-sm .page-link {\n  padding: 0.25rem 0.5rem;\n  font-size: 0.875rem;\n}\n.pagination-sm .page-item:first-child .page-link {\n  border-top-left-radius: 0.2rem;\n  border-bottom-left-radius: 0.2rem;\n}\n.pagination-sm .page-item:last-child .page-link {\n  border-top-right-radius: 0.2rem;\n  border-bottom-right-radius: 0.2rem;\n}\n\n.badge {\n  display: inline-block;\n  padding: 0.35em 0.65em;\n  font-size: 0.75em;\n  font-weight: 700;\n  line-height: 1;\n  color: #fff;\n  text-align: center;\n  white-space: nowrap;\n  vertical-align: baseline;\n  border-radius: 0.25rem;\n}\n.badge:empty {\n  display: none;\n}\n\n.btn .badge {\n  position: relative;\n  top: -1px;\n}\n\n.alert {\n  position: relative;\n  padding: 1rem 1rem;\n  margin-bottom: 1rem;\n  border: 1px solid transparent;\n  border-radius: 0.25rem;\n}\n\n.alert-heading {\n  color: inherit;\n}\n\n.alert-link {\n  font-weight: 700;\n}\n\n.alert-dismissible {\n  padding-right: 3rem;\n}\n.alert-dismissible .btn-close {\n  position: absolute;\n  top: 0;\n  right: 0;\n  z-index: 2;\n  padding: 1.25rem 1rem;\n}\n\n.alert-primary {\n  color: #084298;\n  background-color: #cfe2ff;\n  border-color: #b6d4fe;\n}\n.alert-primary .alert-link {\n  color: #06357a;\n}\n\n.alert-secondary {\n  color: #41464b;\n  background-color: #e2e3e5;\n  border-color: #d3d6d8;\n}\n.alert-secondary .alert-link {\n  color: #34383c;\n}\n\n.alert-success {\n  color: #0f5132;\n  background-color: #d1e7dd;\n  border-color: #badbcc;\n}\n.alert-success .alert-link {\n  color: #0c4128;\n}\n\n.alert-info {\n  color: #055160;\n  background-color: #cff4fc;\n  border-color: #b6effb;\n}\n.alert-info .alert-link {\n  color: #04414d;\n}\n\n.alert-warning {\n  color: #664d03;\n  background-color: #fff3cd;\n  border-color: #ffecb5;\n}\n.alert-warning .alert-link {\n  color: #523e02;\n}\n\n.alert-danger {\n  color: #842029;\n  background-color: #f8d7da;\n  border-color: #f5c2c7;\n}\n.alert-danger .alert-link {\n  color: #6a1a21;\n}\n\n.alert-light {\n  color: #636464;\n  background-color: #fefefe;\n  border-color: #fdfdfe;\n}\n.alert-light .alert-link {\n  color: #4f5050;\n}\n\n.alert-dark {\n  color: #141619;\n  background-color: #d3d3d4;\n  border-color: #bcbebf;\n}\n.alert-dark .alert-link {\n  color: #101214;\n}\n\n@-webkit-keyframes progress-bar-stripes {\n  0% {\n    background-position-x: 1rem;\n  }\n}\n\n@keyframes progress-bar-stripes {\n  0% {\n    background-position-x: 1rem;\n  }\n}\n.progress {\n  display: flex;\n  height: 1rem;\n  overflow: hidden;\n  font-size: 0.75rem;\n  background-color: #e9ecef;\n  border-radius: 0.25rem;\n}\n\n.progress-bar {\n  display: flex;\n  flex-direction: column;\n  justify-content: center;\n  overflow: hidden;\n  color: #fff;\n  text-align: center;\n  white-space: nowrap;\n  background-color: #0d6efd;\n  transition: width 0.6s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .progress-bar {\n    transition: none;\n  }\n}\n\n.progress-bar-striped {\n  background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent);\n  background-size: 1rem 1rem;\n}\n\n.progress-bar-animated {\n  -webkit-animation: 1s linear infinite progress-bar-stripes;\n  animation: 1s linear infinite progress-bar-stripes;\n}\n@media (prefers-reduced-motion: reduce) {\n  .progress-bar-animated {\n    -webkit-animation: none;\n    animation: none;\n  }\n}\n\n.list-group {\n  display: flex;\n  flex-direction: column;\n  padding-left: 0;\n  margin-bottom: 0;\n  border-radius: 0.25rem;\n}\n\n.list-group-numbered {\n  list-style-type: none;\n  counter-reset: section;\n}\n.list-group-numbered > li::before {\n  content: counters(section, \".\") \". \";\n  counter-increment: section;\n}\n\n.list-group-item-action {\n  width: 100%;\n  color: #495057;\n  text-align: inherit;\n}\n.list-group-item-action:hover, .list-group-item-action:focus {\n  z-index: 1;\n  color: #495057;\n  text-decoration: none;\n  background-color: #f8f9fa;\n}\n.list-group-item-action:active {\n  color: #212529;\n  background-color: #e9ecef;\n}\n\n.list-group-item {\n  position: relative;\n  display: block;\n  padding: 0.5rem 1rem;\n  color: #212529;\n  text-decoration: none;\n  background-color: #fff;\n  border: 1px solid rgba(0, 0, 0, 0.125);\n}\n.list-group-item:first-child {\n  border-top-left-radius: inherit;\n  border-top-right-radius: inherit;\n}\n.list-group-item:last-child {\n  border-bottom-right-radius: inherit;\n  border-bottom-left-radius: inherit;\n}\n.list-group-item.disabled, .list-group-item:disabled {\n  color: #6c757d;\n  pointer-events: none;\n  background-color: #fff;\n}\n.list-group-item.active {\n  z-index: 2;\n  color: #fff;\n  background-color: #0d6efd;\n  border-color: #0d6efd;\n}\n.list-group-item + .list-group-item {\n  border-top-width: 0;\n}\n.list-group-item + .list-group-item.active {\n  margin-top: -1px;\n  border-top-width: 1px;\n}\n\n.list-group-horizontal {\n  flex-direction: row;\n}\n.list-group-horizontal > .list-group-item:first-child {\n  border-bottom-left-radius: 0.25rem;\n  border-top-right-radius: 0;\n}\n.list-group-horizontal > .list-group-item:last-child {\n  border-top-right-radius: 0.25rem;\n  border-bottom-left-radius: 0;\n}\n.list-group-horizontal > .list-group-item.active {\n  margin-top: 0;\n}\n.list-group-horizontal > .list-group-item + .list-group-item {\n  border-top-width: 1px;\n  border-left-width: 0;\n}\n.list-group-horizontal > .list-group-item + .list-group-item.active {\n  margin-left: -1px;\n  border-left-width: 1px;\n}\n\n@media (min-width: 576px) {\n  .list-group-horizontal-sm {\n    flex-direction: row;\n  }\n  .list-group-horizontal-sm > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-sm > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-sm > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-sm > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-sm > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n@media (min-width: 768px) {\n  .list-group-horizontal-md {\n    flex-direction: row;\n  }\n  .list-group-horizontal-md > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-md > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-md > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-md > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-md > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n@media (min-width: 992px) {\n  .list-group-horizontal-lg {\n    flex-direction: row;\n  }\n  .list-group-horizontal-lg > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-lg > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-lg > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-lg > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-lg > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n@media (min-width: 1200px) {\n  .list-group-horizontal-xl {\n    flex-direction: row;\n  }\n  .list-group-horizontal-xl > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-xl > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n@media (min-width: 1400px) {\n  .list-group-horizontal-xxl {\n    flex-direction: row;\n  }\n  .list-group-horizontal-xxl > .list-group-item:first-child {\n    border-bottom-left-radius: 0.25rem;\n    border-top-right-radius: 0;\n  }\n  .list-group-horizontal-xxl > .list-group-item:last-child {\n    border-top-right-radius: 0.25rem;\n    border-bottom-left-radius: 0;\n  }\n  .list-group-horizontal-xxl > .list-group-item.active {\n    margin-top: 0;\n  }\n  .list-group-horizontal-xxl > .list-group-item + .list-group-item {\n    border-top-width: 1px;\n    border-left-width: 0;\n  }\n  .list-group-horizontal-xxl > .list-group-item + .list-group-item.active {\n    margin-left: -1px;\n    border-left-width: 1px;\n  }\n}\n.list-group-flush {\n  border-radius: 0;\n}\n.list-group-flush > .list-group-item {\n  border-width: 0 0 1px;\n}\n.list-group-flush > .list-group-item:last-child {\n  border-bottom-width: 0;\n}\n\n.list-group-item-primary {\n  color: #084298;\n  background-color: #cfe2ff;\n}\n.list-group-item-primary.list-group-item-action:hover, .list-group-item-primary.list-group-item-action:focus {\n  color: #084298;\n  background-color: #bacbe6;\n}\n.list-group-item-primary.list-group-item-action.active {\n  color: #fff;\n  background-color: #084298;\n  border-color: #084298;\n}\n\n.list-group-item-secondary {\n  color: #41464b;\n  background-color: #e2e3e5;\n}\n.list-group-item-secondary.list-group-item-action:hover, .list-group-item-secondary.list-group-item-action:focus {\n  color: #41464b;\n  background-color: #cbccce;\n}\n.list-group-item-secondary.list-group-item-action.active {\n  color: #fff;\n  background-color: #41464b;\n  border-color: #41464b;\n}\n\n.list-group-item-success {\n  color: #0f5132;\n  background-color: #d1e7dd;\n}\n.list-group-item-success.list-group-item-action:hover, .list-group-item-success.list-group-item-action:focus {\n  color: #0f5132;\n  background-color: #bcd0c7;\n}\n.list-group-item-success.list-group-item-action.active {\n  color: #fff;\n  background-color: #0f5132;\n  border-color: #0f5132;\n}\n\n.list-group-item-info {\n  color: #055160;\n  background-color: #cff4fc;\n}\n.list-group-item-info.list-group-item-action:hover, .list-group-item-info.list-group-item-action:focus {\n  color: #055160;\n  background-color: #badce3;\n}\n.list-group-item-info.list-group-item-action.active {\n  color: #fff;\n  background-color: #055160;\n  border-color: #055160;\n}\n\n.list-group-item-warning {\n  color: #664d03;\n  background-color: #fff3cd;\n}\n.list-group-item-warning.list-group-item-action:hover, .list-group-item-warning.list-group-item-action:focus {\n  color: #664d03;\n  background-color: #e6dbb9;\n}\n.list-group-item-warning.list-group-item-action.active {\n  color: #fff;\n  background-color: #664d03;\n  border-color: #664d03;\n}\n\n.list-group-item-danger {\n  color: #842029;\n  background-color: #f8d7da;\n}\n.list-group-item-danger.list-group-item-action:hover, .list-group-item-danger.list-group-item-action:focus {\n  color: #842029;\n  background-color: #dfc2c4;\n}\n.list-group-item-danger.list-group-item-action.active {\n  color: #fff;\n  background-color: #842029;\n  border-color: #842029;\n}\n\n.list-group-item-light {\n  color: #636464;\n  background-color: #fefefe;\n}\n.list-group-item-light.list-group-item-action:hover, .list-group-item-light.list-group-item-action:focus {\n  color: #636464;\n  background-color: #e5e5e5;\n}\n.list-group-item-light.list-group-item-action.active {\n  color: #fff;\n  background-color: #636464;\n  border-color: #636464;\n}\n\n.list-group-item-dark {\n  color: #141619;\n  background-color: #d3d3d4;\n}\n.list-group-item-dark.list-group-item-action:hover, .list-group-item-dark.list-group-item-action:focus {\n  color: #141619;\n  background-color: #bebebf;\n}\n.list-group-item-dark.list-group-item-action.active {\n  color: #fff;\n  background-color: #141619;\n  border-color: #141619;\n}\n\n.btn-close {\n  box-sizing: content-box;\n  width: 1em;\n  height: 1em;\n  padding: 0.25em 0.25em;\n  color: #000;\n  background: transparent url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e\") center/1em auto no-repeat;\n  border: 0;\n  border-radius: 0.25rem;\n  opacity: 0.5;\n}\n.btn-close:hover {\n  color: #000;\n  text-decoration: none;\n  opacity: 0.75;\n}\n.btn-close:focus {\n  outline: 0;\n  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);\n  opacity: 1;\n}\n.btn-close:disabled, .btn-close.disabled {\n  pointer-events: none;\n  -webkit-user-select: none;\n  -moz-user-select: none;\n  user-select: none;\n  opacity: 0.25;\n}\n\n.btn-close-white {\n  filter: invert(1) grayscale(100%) brightness(200%);\n}\n\n.toast {\n  width: 350px;\n  max-width: 100%;\n  font-size: 0.875rem;\n  pointer-events: auto;\n  background-color: rgba(255, 255, 255, 0.85);\n  background-clip: padding-box;\n  border: 1px solid rgba(0, 0, 0, 0.1);\n  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);\n  border-radius: 0.25rem;\n}\n.toast.showing {\n  opacity: 0;\n}\n.toast:not(.show) {\n  display: none;\n}\n\n.toast-container {\n  width: -webkit-max-content;\n  width: -moz-max-content;\n  width: max-content;\n  max-width: 100%;\n  pointer-events: none;\n}\n.toast-container > :not(:last-child) {\n  margin-bottom: 0.75rem;\n}\n\n.toast-header {\n  display: flex;\n  align-items: center;\n  padding: 0.5rem 0.75rem;\n  color: #6c757d;\n  background-color: rgba(255, 255, 255, 0.85);\n  background-clip: padding-box;\n  border-bottom: 1px solid rgba(0, 0, 0, 0.05);\n  border-top-left-radius: calc(0.25rem - 1px);\n  border-top-right-radius: calc(0.25rem - 1px);\n}\n.toast-header .btn-close {\n  margin-right: -0.375rem;\n  margin-left: 0.75rem;\n}\n\n.toast-body {\n  padding: 0.75rem;\n  word-wrap: break-word;\n}\n\n.modal {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: 1055;\n  display: none;\n  width: 100%;\n  height: 100%;\n  overflow-x: hidden;\n  overflow-y: auto;\n  outline: 0;\n}\n\n.modal-dialog {\n  position: relative;\n  width: auto;\n  margin: 0.5rem;\n  pointer-events: none;\n}\n.modal.fade .modal-dialog {\n  transition: transform 0.3s ease-out;\n  transform: translate(0, -50px);\n}\n@media (prefers-reduced-motion: reduce) {\n  .modal.fade .modal-dialog {\n    transition: none;\n  }\n}\n.modal.show .modal-dialog {\n  transform: none;\n}\n.modal.modal-static .modal-dialog {\n  transform: scale(1.02);\n}\n\n.modal-dialog-scrollable {\n  height: calc(100% - 1rem);\n}\n.modal-dialog-scrollable .modal-content {\n  max-height: 100%;\n  overflow: hidden;\n}\n.modal-dialog-scrollable .modal-body {\n  overflow-y: auto;\n}\n\n.modal-dialog-centered {\n  display: flex;\n  align-items: center;\n  min-height: calc(100% - 1rem);\n}\n\n.modal-content {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  width: 100%;\n  pointer-events: auto;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 1px solid rgba(0, 0, 0, 0.2);\n  border-radius: 0.3rem;\n  outline: 0;\n}\n\n.modal-backdrop {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: 1050;\n  width: 100vw;\n  height: 100vh;\n  background-color: #000;\n}\n.modal-backdrop.fade {\n  opacity: 0;\n}\n.modal-backdrop.show {\n  opacity: 0.5;\n}\n\n.modal-header {\n  display: flex;\n  flex-shrink: 0;\n  align-items: center;\n  justify-content: space-between;\n  padding: 1rem 1rem;\n  border-bottom: 1px solid #dee2e6;\n  border-top-left-radius: calc(0.3rem - 1px);\n  border-top-right-radius: calc(0.3rem - 1px);\n}\n.modal-header .btn-close {\n  padding: 0.5rem 0.5rem;\n  margin: -0.5rem -0.5rem -0.5rem auto;\n}\n\n.modal-title {\n  margin-bottom: 0;\n  line-height: 1.5;\n}\n\n.modal-body {\n  position: relative;\n  flex: 1 1 auto;\n  padding: 1rem;\n}\n\n.modal-footer {\n  display: flex;\n  flex-wrap: wrap;\n  flex-shrink: 0;\n  align-items: center;\n  justify-content: flex-end;\n  padding: 0.75rem;\n  border-top: 1px solid #dee2e6;\n  border-bottom-right-radius: calc(0.3rem - 1px);\n  border-bottom-left-radius: calc(0.3rem - 1px);\n}\n.modal-footer > * {\n  margin: 0.25rem;\n}\n\n@media (min-width: 576px) {\n  .modal-dialog {\n    max-width: 500px;\n    margin: 1.75rem auto;\n  }\n\n  .modal-dialog-scrollable {\n    height: calc(100% - 3.5rem);\n  }\n\n  .modal-dialog-centered {\n    min-height: calc(100% - 3.5rem);\n  }\n\n  .modal-sm {\n    max-width: 300px;\n  }\n}\n@media (min-width: 992px) {\n  .modal-lg,\n.modal-xl {\n    max-width: 800px;\n  }\n}\n@media (min-width: 1200px) {\n  .modal-xl {\n    max-width: 1140px;\n  }\n}\n.modal-fullscreen {\n  width: 100vw;\n  max-width: none;\n  height: 100%;\n  margin: 0;\n}\n.modal-fullscreen .modal-content {\n  height: 100%;\n  border: 0;\n  border-radius: 0;\n}\n.modal-fullscreen .modal-header {\n  border-radius: 0;\n}\n.modal-fullscreen .modal-body {\n  overflow-y: auto;\n}\n.modal-fullscreen .modal-footer {\n  border-radius: 0;\n}\n\n@media (max-width: 575.98px) {\n  .modal-fullscreen-sm-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-sm-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-sm-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-sm-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-sm-down .modal-footer {\n    border-radius: 0;\n  }\n}\n@media (max-width: 767.98px) {\n  .modal-fullscreen-md-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-md-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-md-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-md-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-md-down .modal-footer {\n    border-radius: 0;\n  }\n}\n@media (max-width: 991.98px) {\n  .modal-fullscreen-lg-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-lg-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-lg-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-lg-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-lg-down .modal-footer {\n    border-radius: 0;\n  }\n}\n@media (max-width: 1199.98px) {\n  .modal-fullscreen-xl-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-xl-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-xl-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-xl-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-xl-down .modal-footer {\n    border-radius: 0;\n  }\n}\n@media (max-width: 1399.98px) {\n  .modal-fullscreen-xxl-down {\n    width: 100vw;\n    max-width: none;\n    height: 100%;\n    margin: 0;\n  }\n  .modal-fullscreen-xxl-down .modal-content {\n    height: 100%;\n    border: 0;\n    border-radius: 0;\n  }\n  .modal-fullscreen-xxl-down .modal-header {\n    border-radius: 0;\n  }\n  .modal-fullscreen-xxl-down .modal-body {\n    overflow-y: auto;\n  }\n  .modal-fullscreen-xxl-down .modal-footer {\n    border-radius: 0;\n  }\n}\n.tooltip {\n  position: absolute;\n  z-index: 1080;\n  display: block;\n  margin: 0;\n  font-family: var(--bs-font-sans-serif);\n  font-style: normal;\n  font-weight: 400;\n  line-height: 1.5;\n  text-align: left;\n  text-align: start;\n  text-decoration: none;\n  text-shadow: none;\n  text-transform: none;\n  letter-spacing: normal;\n  word-break: normal;\n  word-spacing: normal;\n  white-space: normal;\n  line-break: auto;\n  font-size: 0.875rem;\n  word-wrap: break-word;\n  opacity: 0;\n}\n.tooltip.show {\n  opacity: 0.9;\n}\n.tooltip .tooltip-arrow {\n  position: absolute;\n  display: block;\n  width: 0.8rem;\n  height: 0.4rem;\n}\n.tooltip .tooltip-arrow::before {\n  position: absolute;\n  content: \"\";\n  border-color: transparent;\n  border-style: solid;\n}\n\n.bs-tooltip-top, .bs-tooltip-auto[data-popper-placement^=top] {\n  padding: 0.4rem 0;\n}\n.bs-tooltip-top .tooltip-arrow, .bs-tooltip-auto[data-popper-placement^=top] .tooltip-arrow {\n  bottom: 0;\n}\n.bs-tooltip-top .tooltip-arrow::before, .bs-tooltip-auto[data-popper-placement^=top] .tooltip-arrow::before {\n  top: -1px;\n  border-width: 0.4rem 0.4rem 0;\n  border-top-color: #000;\n}\n\n.bs-tooltip-end, .bs-tooltip-auto[data-popper-placement^=right] {\n  padding: 0 0.4rem;\n}\n.bs-tooltip-end .tooltip-arrow, .bs-tooltip-auto[data-popper-placement^=right] .tooltip-arrow {\n  left: 0;\n  width: 0.4rem;\n  height: 0.8rem;\n}\n.bs-tooltip-end .tooltip-arrow::before, .bs-tooltip-auto[data-popper-placement^=right] .tooltip-arrow::before {\n  right: -1px;\n  border-width: 0.4rem 0.4rem 0.4rem 0;\n  border-right-color: #000;\n}\n\n.bs-tooltip-bottom, .bs-tooltip-auto[data-popper-placement^=bottom] {\n  padding: 0.4rem 0;\n}\n.bs-tooltip-bottom .tooltip-arrow, .bs-tooltip-auto[data-popper-placement^=bottom] .tooltip-arrow {\n  top: 0;\n}\n.bs-tooltip-bottom .tooltip-arrow::before, .bs-tooltip-auto[data-popper-placement^=bottom] .tooltip-arrow::before {\n  bottom: -1px;\n  border-width: 0 0.4rem 0.4rem;\n  border-bottom-color: #000;\n}\n\n.bs-tooltip-start, .bs-tooltip-auto[data-popper-placement^=left] {\n  padding: 0 0.4rem;\n}\n.bs-tooltip-start .tooltip-arrow, .bs-tooltip-auto[data-popper-placement^=left] .tooltip-arrow {\n  right: 0;\n  width: 0.4rem;\n  height: 0.8rem;\n}\n.bs-tooltip-start .tooltip-arrow::before, .bs-tooltip-auto[data-popper-placement^=left] .tooltip-arrow::before {\n  left: -1px;\n  border-width: 0.4rem 0 0.4rem 0.4rem;\n  border-left-color: #000;\n}\n\n.tooltip-inner {\n  max-width: 200px;\n  padding: 0.25rem 0.5rem;\n  color: #fff;\n  text-align: center;\n  background-color: #000;\n  border-radius: 0.25rem;\n}\n\n.popover {\n  position: absolute;\n  top: 0;\n  left: 0 /* rtl:ignore */;\n  z-index: 1070;\n  display: block;\n  max-width: 276px;\n  font-family: var(--bs-font-sans-serif);\n  font-style: normal;\n  font-weight: 400;\n  line-height: 1.5;\n  text-align: left;\n  text-align: start;\n  text-decoration: none;\n  text-shadow: none;\n  text-transform: none;\n  letter-spacing: normal;\n  word-break: normal;\n  word-spacing: normal;\n  white-space: normal;\n  line-break: auto;\n  font-size: 0.875rem;\n  word-wrap: break-word;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 1px solid rgba(0, 0, 0, 0.2);\n  border-radius: 0.3rem;\n}\n.popover .popover-arrow {\n  position: absolute;\n  display: block;\n  width: 1rem;\n  height: 0.5rem;\n}\n.popover .popover-arrow::before, .popover .popover-arrow::after {\n  position: absolute;\n  display: block;\n  content: \"\";\n  border-color: transparent;\n  border-style: solid;\n}\n\n.bs-popover-top > .popover-arrow, .bs-popover-auto[data-popper-placement^=top] > .popover-arrow {\n  bottom: calc(-0.5rem - 1px);\n}\n.bs-popover-top > .popover-arrow::before, .bs-popover-auto[data-popper-placement^=top] > .popover-arrow::before {\n  bottom: 0;\n  border-width: 0.5rem 0.5rem 0;\n  border-top-color: rgba(0, 0, 0, 0.25);\n}\n.bs-popover-top > .popover-arrow::after, .bs-popover-auto[data-popper-placement^=top] > .popover-arrow::after {\n  bottom: 1px;\n  border-width: 0.5rem 0.5rem 0;\n  border-top-color: #fff;\n}\n\n.bs-popover-end > .popover-arrow, .bs-popover-auto[data-popper-placement^=right] > .popover-arrow {\n  left: calc(-0.5rem - 1px);\n  width: 0.5rem;\n  height: 1rem;\n}\n.bs-popover-end > .popover-arrow::before, .bs-popover-auto[data-popper-placement^=right] > .popover-arrow::before {\n  left: 0;\n  border-width: 0.5rem 0.5rem 0.5rem 0;\n  border-right-color: rgba(0, 0, 0, 0.25);\n}\n.bs-popover-end > .popover-arrow::after, .bs-popover-auto[data-popper-placement^=right] > .popover-arrow::after {\n  left: 1px;\n  border-width: 0.5rem 0.5rem 0.5rem 0;\n  border-right-color: #fff;\n}\n\n.bs-popover-bottom > .popover-arrow, .bs-popover-auto[data-popper-placement^=bottom] > .popover-arrow {\n  top: calc(-0.5rem - 1px);\n}\n.bs-popover-bottom > .popover-arrow::before, .bs-popover-auto[data-popper-placement^=bottom] > .popover-arrow::before {\n  top: 0;\n  border-width: 0 0.5rem 0.5rem 0.5rem;\n  border-bottom-color: rgba(0, 0, 0, 0.25);\n}\n.bs-popover-bottom > .popover-arrow::after, .bs-popover-auto[data-popper-placement^=bottom] > .popover-arrow::after {\n  top: 1px;\n  border-width: 0 0.5rem 0.5rem 0.5rem;\n  border-bottom-color: #fff;\n}\n.bs-popover-bottom .popover-header::before, .bs-popover-auto[data-popper-placement^=bottom] .popover-header::before {\n  position: absolute;\n  top: 0;\n  left: 50%;\n  display: block;\n  width: 1rem;\n  margin-left: -0.5rem;\n  content: \"\";\n  border-bottom: 1px solid #f0f0f0;\n}\n\n.bs-popover-start > .popover-arrow, .bs-popover-auto[data-popper-placement^=left] > .popover-arrow {\n  right: calc(-0.5rem - 1px);\n  width: 0.5rem;\n  height: 1rem;\n}\n.bs-popover-start > .popover-arrow::before, .bs-popover-auto[data-popper-placement^=left] > .popover-arrow::before {\n  right: 0;\n  border-width: 0.5rem 0 0.5rem 0.5rem;\n  border-left-color: rgba(0, 0, 0, 0.25);\n}\n.bs-popover-start > .popover-arrow::after, .bs-popover-auto[data-popper-placement^=left] > .popover-arrow::after {\n  right: 1px;\n  border-width: 0.5rem 0 0.5rem 0.5rem;\n  border-left-color: #fff;\n}\n\n.popover-header {\n  padding: 0.5rem 1rem;\n  margin-bottom: 0;\n  font-size: 1rem;\n  background-color: #f0f0f0;\n  border-bottom: 1px solid rgba(0, 0, 0, 0.2);\n  border-top-left-radius: calc(0.3rem - 1px);\n  border-top-right-radius: calc(0.3rem - 1px);\n}\n.popover-header:empty {\n  display: none;\n}\n\n.popover-body {\n  padding: 1rem 1rem;\n  color: #212529;\n}\n\n.carousel {\n  position: relative;\n}\n\n.carousel.pointer-event {\n  touch-action: pan-y;\n}\n\n.carousel-inner {\n  position: relative;\n  width: 100%;\n  overflow: hidden;\n}\n.carousel-inner::after {\n  display: block;\n  clear: both;\n  content: \"\";\n}\n\n.carousel-item {\n  position: relative;\n  display: none;\n  float: left;\n  width: 100%;\n  margin-right: -100%;\n  -webkit-backface-visibility: hidden;\n  backface-visibility: hidden;\n  transition: transform 0.6s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .carousel-item {\n    transition: none;\n  }\n}\n\n.carousel-item.active,\n.carousel-item-next,\n.carousel-item-prev {\n  display: block;\n}\n\n/* rtl:begin:ignore */\n.carousel-item-next:not(.carousel-item-start),\n.active.carousel-item-end {\n  transform: translateX(100%);\n}\n\n.carousel-item-prev:not(.carousel-item-end),\n.active.carousel-item-start {\n  transform: translateX(-100%);\n}\n\n/* rtl:end:ignore */\n.carousel-fade .carousel-item {\n  opacity: 0;\n  transition-property: opacity;\n  transform: none;\n}\n.carousel-fade .carousel-item.active,\n.carousel-fade .carousel-item-next.carousel-item-start,\n.carousel-fade .carousel-item-prev.carousel-item-end {\n  z-index: 1;\n  opacity: 1;\n}\n.carousel-fade .active.carousel-item-start,\n.carousel-fade .active.carousel-item-end {\n  z-index: 0;\n  opacity: 0;\n  transition: opacity 0s 0.6s;\n}\n@media (prefers-reduced-motion: reduce) {\n  .carousel-fade .active.carousel-item-start,\n.carousel-fade .active.carousel-item-end {\n    transition: none;\n  }\n}\n\n.carousel-control-prev,\n.carousel-control-next {\n  position: absolute;\n  top: 0;\n  bottom: 0;\n  z-index: 1;\n  display: flex;\n  align-items: center;\n  justify-content: center;\n  width: 15%;\n  padding: 0;\n  color: #fff;\n  text-align: center;\n  background: none;\n  border: 0;\n  opacity: 0.5;\n  transition: opacity 0.15s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .carousel-control-prev,\n.carousel-control-next {\n    transition: none;\n  }\n}\n.carousel-control-prev:hover, .carousel-control-prev:focus,\n.carousel-control-next:hover,\n.carousel-control-next:focus {\n  color: #fff;\n  text-decoration: none;\n  outline: 0;\n  opacity: 0.9;\n}\n\n.carousel-control-prev {\n  left: 0;\n}\n\n.carousel-control-next {\n  right: 0;\n}\n\n.carousel-control-prev-icon,\n.carousel-control-next-icon {\n  display: inline-block;\n  width: 2rem;\n  height: 2rem;\n  background-repeat: no-repeat;\n  background-position: 50%;\n  background-size: 100% 100%;\n}\n\n/* rtl:options: {\n  \"autoRename\": true,\n  \"stringMap\":[ {\n    \"name\"    : \"prev-next\",\n    \"search\"  : \"prev\",\n    \"replace\" : \"next\"\n  } ]\n} */\n.carousel-control-prev-icon {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23fff'%3e%3cpath d='M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e\");\n}\n\n.carousel-control-next-icon {\n  background-image: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23fff'%3e%3cpath d='M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e\");\n}\n\n.carousel-indicators {\n  position: absolute;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: 2;\n  display: flex;\n  justify-content: center;\n  padding: 0;\n  margin-right: 15%;\n  margin-bottom: 1rem;\n  margin-left: 15%;\n  list-style: none;\n}\n.carousel-indicators [data-bs-target] {\n  box-sizing: content-box;\n  flex: 0 1 auto;\n  width: 30px;\n  height: 3px;\n  padding: 0;\n  margin-right: 3px;\n  margin-left: 3px;\n  text-indent: -999px;\n  cursor: pointer;\n  background-color: #fff;\n  background-clip: padding-box;\n  border: 0;\n  border-top: 10px solid transparent;\n  border-bottom: 10px solid transparent;\n  opacity: 0.5;\n  transition: opacity 0.6s ease;\n}\n@media (prefers-reduced-motion: reduce) {\n  .carousel-indicators [data-bs-target] {\n    transition: none;\n  }\n}\n.carousel-indicators .active {\n  opacity: 1;\n}\n\n.carousel-caption {\n  position: absolute;\n  right: 15%;\n  bottom: 1.25rem;\n  left: 15%;\n  padding-top: 1.25rem;\n  padding-bottom: 1.25rem;\n  color: #fff;\n  text-align: center;\n}\n\n.carousel-dark .carousel-control-prev-icon,\n.carousel-dark .carousel-control-next-icon {\n  filter: invert(1) grayscale(100);\n}\n.carousel-dark .carousel-indicators [data-bs-target] {\n  background-color: #000;\n}\n.carousel-dark .carousel-caption {\n  color: #000;\n}\n\n@-webkit-keyframes spinner-border {\n  to {\n    transform: rotate(360deg) /* rtl:ignore */;\n  }\n}\n\n@keyframes spinner-border {\n  to {\n    transform: rotate(360deg) /* rtl:ignore */;\n  }\n}\n.spinner-border {\n  display: inline-block;\n  width: 2rem;\n  height: 2rem;\n  vertical-align: -0.125em;\n  border: 0.25em solid currentColor;\n  border-right-color: transparent;\n  border-radius: 50%;\n  -webkit-animation: 0.75s linear infinite spinner-border;\n  animation: 0.75s linear infinite spinner-border;\n}\n\n.spinner-border-sm {\n  width: 1rem;\n  height: 1rem;\n  border-width: 0.2em;\n}\n\n@-webkit-keyframes spinner-grow {\n  0% {\n    transform: scale(0);\n  }\n  50% {\n    opacity: 1;\n    transform: none;\n  }\n}\n\n@keyframes spinner-grow {\n  0% {\n    transform: scale(0);\n  }\n  50% {\n    opacity: 1;\n    transform: none;\n  }\n}\n.spinner-grow {\n  display: inline-block;\n  width: 2rem;\n  height: 2rem;\n  vertical-align: -0.125em;\n  background-color: currentColor;\n  border-radius: 50%;\n  opacity: 0;\n  -webkit-animation: 0.75s linear infinite spinner-grow;\n  animation: 0.75s linear infinite spinner-grow;\n}\n\n.spinner-grow-sm {\n  width: 1rem;\n  height: 1rem;\n}\n\n@media (prefers-reduced-motion: reduce) {\n  .spinner-border,\n.spinner-grow {\n    -webkit-animation-duration: 1.5s;\n    animation-duration: 1.5s;\n  }\n}\n.offcanvas {\n  position: fixed;\n  bottom: 0;\n  z-index: 1045;\n  display: flex;\n  flex-direction: column;\n  max-width: 100%;\n  visibility: hidden;\n  background-color: #fff;\n  background-clip: padding-box;\n  outline: 0;\n  transition: transform 0.3s ease-in-out;\n}\n@media (prefers-reduced-motion: reduce) {\n  .offcanvas {\n    transition: none;\n  }\n}\n\n.offcanvas-backdrop {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: 1040;\n  width: 100vw;\n  height: 100vh;\n  background-color: #000;\n}\n.offcanvas-backdrop.fade {\n  opacity: 0;\n}\n.offcanvas-backdrop.show {\n  opacity: 0.5;\n}\n\n.offcanvas-header {\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  padding: 1rem 1rem;\n}\n.offcanvas-header .btn-close {\n  padding: 0.5rem 0.5rem;\n  margin-top: -0.5rem;\n  margin-right: -0.5rem;\n  margin-bottom: -0.5rem;\n}\n\n.offcanvas-title {\n  margin-bottom: 0;\n  line-height: 1.5;\n}\n\n.offcanvas-body {\n  flex-grow: 1;\n  padding: 1rem 1rem;\n  overflow-y: auto;\n}\n\n.offcanvas-start {\n  top: 0;\n  left: 0;\n  width: 400px;\n  border-right: 1px solid rgba(0, 0, 0, 0.2);\n  transform: translateX(-100%);\n}\n\n.offcanvas-end {\n  top: 0;\n  right: 0;\n  width: 400px;\n  border-left: 1px solid rgba(0, 0, 0, 0.2);\n  transform: translateX(100%);\n}\n\n.offcanvas-top {\n  top: 0;\n  right: 0;\n  left: 0;\n  height: 30vh;\n  max-height: 100%;\n  border-bottom: 1px solid rgba(0, 0, 0, 0.2);\n  transform: translateY(-100%);\n}\n\n.offcanvas-bottom {\n  right: 0;\n  left: 0;\n  height: 30vh;\n  max-height: 100%;\n  border-top: 1px solid rgba(0, 0, 0, 0.2);\n  transform: translateY(100%);\n}\n\n.offcanvas.show {\n  transform: none;\n}\n\n.placeholder {\n  display: inline-block;\n  min-height: 1em;\n  vertical-align: middle;\n  cursor: wait;\n  background-color: currentColor;\n  opacity: 0.5;\n}\n.placeholder.btn::before {\n  display: inline-block;\n  content: \"\";\n}\n\n.placeholder-xs {\n  min-height: 0.6em;\n}\n\n.placeholder-sm {\n  min-height: 0.8em;\n}\n\n.placeholder-lg {\n  min-height: 1.2em;\n}\n\n.placeholder-glow .placeholder {\n  -webkit-animation: placeholder-glow 2s ease-in-out infinite;\n  animation: placeholder-glow 2s ease-in-out infinite;\n}\n\n@-webkit-keyframes placeholder-glow {\n  50% {\n    opacity: 0.2;\n  }\n}\n\n@keyframes placeholder-glow {\n  50% {\n    opacity: 0.2;\n  }\n}\n.placeholder-wave {\n  -webkit-mask-image: linear-gradient(130deg, #000 55%, rgba(0, 0, 0, 0.8) 75%, #000 95%);\n  mask-image: linear-gradient(130deg, #000 55%, rgba(0, 0, 0, 0.8) 75%, #000 95%);\n  -webkit-mask-size: 200% 100%;\n  mask-size: 200% 100%;\n  -webkit-animation: placeholder-wave 2s linear infinite;\n  animation: placeholder-wave 2s linear infinite;\n}\n\n@-webkit-keyframes placeholder-wave {\n  100% {\n    -webkit-mask-position: -200% 0%;\n    mask-position: -200% 0%;\n  }\n}\n\n@keyframes placeholder-wave {\n  100% {\n    -webkit-mask-position: -200% 0%;\n    mask-position: -200% 0%;\n  }\n}\n.clearfix::after {\n  display: block;\n  clear: both;\n  content: \"\";\n}\n\n.link-primary {\n  color: #0d6efd;\n}\n.link-primary:hover, .link-primary:focus {\n  color: #0a58ca;\n}\n\n.link-secondary {\n  color: #6c757d;\n}\n.link-secondary:hover, .link-secondary:focus {\n  color: #565e64;\n}\n\n.link-success {\n  color: #198754;\n}\n.link-success:hover, .link-success:focus {\n  color: #146c43;\n}\n\n.link-info {\n  color: #0dcaf0;\n}\n.link-info:hover, .link-info:focus {\n  color: #3dd5f3;\n}\n\n.link-warning {\n  color: #ffc107;\n}\n.link-warning:hover, .link-warning:focus {\n  color: #ffcd39;\n}\n\n.link-danger {\n  color: #dc3545;\n}\n.link-danger:hover, .link-danger:focus {\n  color: #b02a37;\n}\n\n.link-light {\n  color: #f8f9fa;\n}\n.link-light:hover, .link-light:focus {\n  color: #f9fafb;\n}\n\n.link-dark {\n  color: #212529;\n}\n.link-dark:hover, .link-dark:focus {\n  color: #1a1e21;\n}\n\n.ratio {\n  position: relative;\n  width: 100%;\n}\n.ratio::before {\n  display: block;\n  padding-top: var(--bs-aspect-ratio);\n  content: \"\";\n}\n.ratio > * {\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n}\n\n.ratio-1x1 {\n  --bs-aspect-ratio: 100%;\n}\n\n.ratio-4x3 {\n  --bs-aspect-ratio: calc(3 / 4 * 100%);\n}\n\n.ratio-16x9 {\n  --bs-aspect-ratio: calc(9 / 16 * 100%);\n}\n\n.ratio-21x9 {\n  --bs-aspect-ratio: calc(9 / 21 * 100%);\n}\n\n.fixed-top {\n  position: fixed;\n  top: 0;\n  right: 0;\n  left: 0;\n  z-index: 1030;\n}\n\n.fixed-bottom {\n  position: fixed;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: 1030;\n}\n\n.sticky-top {\n  position: -webkit-sticky;\n  position: sticky;\n  top: 0;\n  z-index: 1020;\n}\n\n@media (min-width: 576px) {\n  .sticky-sm-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n@media (min-width: 768px) {\n  .sticky-md-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n@media (min-width: 992px) {\n  .sticky-lg-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n@media (min-width: 1200px) {\n  .sticky-xl-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n@media (min-width: 1400px) {\n  .sticky-xxl-top {\n    position: -webkit-sticky;\n    position: sticky;\n    top: 0;\n    z-index: 1020;\n  }\n}\n.hstack {\n  display: flex;\n  flex-direction: row;\n  align-items: center;\n  align-self: stretch;\n}\n\n.vstack {\n  display: flex;\n  flex: 1 1 auto;\n  flex-direction: column;\n  align-self: stretch;\n}\n\n.visually-hidden,\n.visually-hidden-focusable:not(:focus):not(:focus-within) {\n  position: absolute !important;\n  width: 1px !important;\n  height: 1px !important;\n  padding: 0 !important;\n  margin: -1px !important;\n  overflow: hidden !important;\n  clip: rect(0, 0, 0, 0) !important;\n  white-space: nowrap !important;\n  border: 0 !important;\n}\n\n.stretched-link::after {\n  position: absolute;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: 1;\n  content: \"\";\n}\n\n.text-truncate {\n  overflow: hidden;\n  text-overflow: ellipsis;\n  white-space: nowrap;\n}\n\n.vr {\n  display: inline-block;\n  align-self: stretch;\n  width: 1px;\n  min-height: 1em;\n  background-color: currentColor;\n  opacity: 0.25;\n}\n\n.align-baseline {\n  vertical-align: baseline !important;\n}\n\n.align-top {\n  vertical-align: top !important;\n}\n\n.align-middle {\n  vertical-align: middle !important;\n}\n\n.align-bottom {\n  vertical-align: bottom !important;\n}\n\n.align-text-bottom {\n  vertical-align: text-bottom !important;\n}\n\n.align-text-top {\n  vertical-align: text-top !important;\n}\n\n.float-start {\n  float: left !important;\n}\n\n.float-end {\n  float: right !important;\n}\n\n.float-none {\n  float: none !important;\n}\n\n.opacity-0 {\n  opacity: 0 !important;\n}\n\n.opacity-25 {\n  opacity: 0.25 !important;\n}\n\n.opacity-50 {\n  opacity: 0.5 !important;\n}\n\n.opacity-75 {\n  opacity: 0.75 !important;\n}\n\n.opacity-100 {\n  opacity: 1 !important;\n}\n\n.overflow-auto {\n  overflow: auto !important;\n}\n\n.overflow-hidden {\n  overflow: hidden !important;\n}\n\n.overflow-visible {\n  overflow: visible !important;\n}\n\n.overflow-scroll {\n  overflow: scroll !important;\n}\n\n.d-inline {\n  display: inline !important;\n}\n\n.d-inline-block {\n  display: inline-block !important;\n}\n\n.d-block {\n  display: block !important;\n}\n\n.d-grid {\n  display: grid !important;\n}\n\n.d-table {\n  display: table !important;\n}\n\n.d-table-row {\n  display: table-row !important;\n}\n\n.d-table-cell {\n  display: table-cell !important;\n}\n\n.d-flex {\n  display: flex !important;\n}\n\n.d-inline-flex {\n  display: inline-flex !important;\n}\n\n.d-none {\n  display: none !important;\n}\n\n.shadow {\n  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;\n}\n\n.shadow-sm {\n  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;\n}\n\n.shadow-lg {\n  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important;\n}\n\n.shadow-none {\n  box-shadow: none !important;\n}\n\n.position-static {\n  position: static !important;\n}\n\n.position-relative {\n  position: relative !important;\n}\n\n.position-absolute {\n  position: absolute !important;\n}\n\n.position-fixed {\n  position: fixed !important;\n}\n\n.position-sticky {\n  position: -webkit-sticky !important;\n  position: sticky !important;\n}\n\n.top-0 {\n  top: 0 !important;\n}\n\n.top-50 {\n  top: 50% !important;\n}\n\n.top-100 {\n  top: 100% !important;\n}\n\n.bottom-0 {\n  bottom: 0 !important;\n}\n\n.bottom-50 {\n  bottom: 50% !important;\n}\n\n.bottom-100 {\n  bottom: 100% !important;\n}\n\n.start-0 {\n  left: 0 !important;\n}\n\n.start-50 {\n  left: 50% !important;\n}\n\n.start-100 {\n  left: 100% !important;\n}\n\n.end-0 {\n  right: 0 !important;\n}\n\n.end-50 {\n  right: 50% !important;\n}\n\n.end-100 {\n  right: 100% !important;\n}\n\n.translate-middle {\n  transform: translate(-50%, -50%) !important;\n}\n\n.translate-middle-x {\n  transform: translateX(-50%) !important;\n}\n\n.translate-middle-y {\n  transform: translateY(-50%) !important;\n}\n\n.border {\n  border: 1px solid #dee2e6 !important;\n}\n\n.border-0 {\n  border: 0 !important;\n}\n\n.border-top {\n  border-top: 1px solid #dee2e6 !important;\n}\n\n.border-top-0 {\n  border-top: 0 !important;\n}\n\n.border-end {\n  border-right: 1px solid #dee2e6 !important;\n}\n\n.border-end-0 {\n  border-right: 0 !important;\n}\n\n.border-bottom {\n  border-bottom: 1px solid #dee2e6 !important;\n}\n\n.border-bottom-0 {\n  border-bottom: 0 !important;\n}\n\n.border-start {\n  border-left: 1px solid #dee2e6 !important;\n}\n\n.border-start-0 {\n  border-left: 0 !important;\n}\n\n.border-primary {\n  border-color: #0d6efd !important;\n}\n\n.border-secondary {\n  border-color: #6c757d !important;\n}\n\n.border-success {\n  border-color: #198754 !important;\n}\n\n.border-info {\n  border-color: #0dcaf0 !important;\n}\n\n.border-warning {\n  border-color: #ffc107 !important;\n}\n\n.border-danger {\n  border-color: #dc3545 !important;\n}\n\n.border-light {\n  border-color: #f8f9fa !important;\n}\n\n.border-dark {\n  border-color: #212529 !important;\n}\n\n.border-white {\n  border-color: #fff !important;\n}\n\n.border-1 {\n  border-width: 1px !important;\n}\n\n.border-2 {\n  border-width: 2px !important;\n}\n\n.border-3 {\n  border-width: 3px !important;\n}\n\n.border-4 {\n  border-width: 4px !important;\n}\n\n.border-5 {\n  border-width: 5px !important;\n}\n\n.w-25 {\n  width: 25% !important;\n}\n\n.w-50 {\n  width: 50% !important;\n}\n\n.w-75 {\n  width: 75% !important;\n}\n\n.w-100 {\n  width: 100% !important;\n}\n\n.w-auto {\n  width: auto !important;\n}\n\n.mw-100 {\n  max-width: 100% !important;\n}\n\n.vw-100 {\n  width: 100vw !important;\n}\n\n.min-vw-100 {\n  min-width: 100vw !important;\n}\n\n.h-25 {\n  height: 25% !important;\n}\n\n.h-50 {\n  height: 50% !important;\n}\n\n.h-75 {\n  height: 75% !important;\n}\n\n.h-100 {\n  height: 100% !important;\n}\n\n.h-auto {\n  height: auto !important;\n}\n\n.mh-100 {\n  max-height: 100% !important;\n}\n\n.vh-100 {\n  height: 100vh !important;\n}\n\n.min-vh-100 {\n  min-height: 100vh !important;\n}\n\n.flex-fill {\n  flex: 1 1 auto !important;\n}\n\n.flex-row {\n  flex-direction: row !important;\n}\n\n.flex-column {\n  flex-direction: column !important;\n}\n\n.flex-row-reverse {\n  flex-direction: row-reverse !important;\n}\n\n.flex-column-reverse {\n  flex-direction: column-reverse !important;\n}\n\n.flex-grow-0 {\n  flex-grow: 0 !important;\n}\n\n.flex-grow-1 {\n  flex-grow: 1 !important;\n}\n\n.flex-shrink-0 {\n  flex-shrink: 0 !important;\n}\n\n.flex-shrink-1 {\n  flex-shrink: 1 !important;\n}\n\n.flex-wrap {\n  flex-wrap: wrap !important;\n}\n\n.flex-nowrap {\n  flex-wrap: nowrap !important;\n}\n\n.flex-wrap-reverse {\n  flex-wrap: wrap-reverse !important;\n}\n\n.gap-0 {\n  gap: 0 !important;\n}\n\n.gap-1 {\n  gap: 0.25rem !important;\n}\n\n.gap-2 {\n  gap: 0.5rem !important;\n}\n\n.gap-3 {\n  gap: 1rem !important;\n}\n\n.gap-4 {\n  gap: 1.5rem !important;\n}\n\n.gap-5 {\n  gap: 3rem !important;\n}\n\n.justify-content-start {\n  justify-content: flex-start !important;\n}\n\n.justify-content-end {\n  justify-content: flex-end !important;\n}\n\n.justify-content-center {\n  justify-content: center !important;\n}\n\n.justify-content-between {\n  justify-content: space-between !important;\n}\n\n.justify-content-around {\n  justify-content: space-around !important;\n}\n\n.justify-content-evenly {\n  justify-content: space-evenly !important;\n}\n\n.align-items-start {\n  align-items: flex-start !important;\n}\n\n.align-items-end {\n  align-items: flex-end !important;\n}\n\n.align-items-center {\n  align-items: center !important;\n}\n\n.align-items-baseline {\n  align-items: baseline !important;\n}\n\n.align-items-stretch {\n  align-items: stretch !important;\n}\n\n.align-content-start {\n  align-content: flex-start !important;\n}\n\n.align-content-end {\n  align-content: flex-end !important;\n}\n\n.align-content-center {\n  align-content: center !important;\n}\n\n.align-content-between {\n  align-content: space-between !important;\n}\n\n.align-content-around {\n  align-content: space-around !important;\n}\n\n.align-content-stretch {\n  align-content: stretch !important;\n}\n\n.align-self-auto {\n  align-self: auto !important;\n}\n\n.align-self-start {\n  align-self: flex-start !important;\n}\n\n.align-self-end {\n  align-self: flex-end !important;\n}\n\n.align-self-center {\n  align-self: center !important;\n}\n\n.align-self-baseline {\n  align-self: baseline !important;\n}\n\n.align-self-stretch {\n  align-self: stretch !important;\n}\n\n.order-first {\n  order: -1 !important;\n}\n\n.order-0 {\n  order: 0 !important;\n}\n\n.order-1 {\n  order: 1 !important;\n}\n\n.order-2 {\n  order: 2 !important;\n}\n\n.order-3 {\n  order: 3 !important;\n}\n\n.order-4 {\n  order: 4 !important;\n}\n\n.order-5 {\n  order: 5 !important;\n}\n\n.order-last {\n  order: 6 !important;\n}\n\n.m-0 {\n  margin: 0 !important;\n}\n\n.m-1 {\n  margin: 0.25rem !important;\n}\n\n.m-2 {\n  margin: 0.5rem !important;\n}\n\n.m-3 {\n  margin: 1rem !important;\n}\n\n.m-4 {\n  margin: 1.5rem !important;\n}\n\n.m-5 {\n  margin: 3rem !important;\n}\n\n.m-auto {\n  margin: auto !important;\n}\n\n.mx-0 {\n  margin-right: 0 !important;\n  margin-left: 0 !important;\n}\n\n.mx-1 {\n  margin-right: 0.25rem !important;\n  margin-left: 0.25rem !important;\n}\n\n.mx-2 {\n  margin-right: 0.5rem !important;\n  margin-left: 0.5rem !important;\n}\n\n.mx-3 {\n  margin-right: 1rem !important;\n  margin-left: 1rem !important;\n}\n\n.mx-4 {\n  margin-right: 1.5rem !important;\n  margin-left: 1.5rem !important;\n}\n\n.mx-5 {\n  margin-right: 3rem !important;\n  margin-left: 3rem !important;\n}\n\n.mx-auto {\n  margin-right: auto !important;\n  margin-left: auto !important;\n}\n\n.my-0 {\n  margin-top: 0 !important;\n  margin-bottom: 0 !important;\n}\n\n.my-1 {\n  margin-top: 0.25rem !important;\n  margin-bottom: 0.25rem !important;\n}\n\n.my-2 {\n  margin-top: 0.5rem !important;\n  margin-bottom: 0.5rem !important;\n}\n\n.my-3 {\n  margin-top: 1rem !important;\n  margin-bottom: 1rem !important;\n}\n\n.my-4 {\n  margin-top: 1.5rem !important;\n  margin-bottom: 1.5rem !important;\n}\n\n.my-5 {\n  margin-top: 3rem !important;\n  margin-bottom: 3rem !important;\n}\n\n.my-auto {\n  margin-top: auto !important;\n  margin-bottom: auto !important;\n}\n\n.mt-0 {\n  margin-top: 0 !important;\n}\n\n.mt-1 {\n  margin-top: 0.25rem !important;\n}\n\n.mt-2 {\n  margin-top: 0.5rem !important;\n}\n\n.mt-3 {\n  margin-top: 1rem !important;\n}\n\n.mt-4 {\n  margin-top: 1.5rem !important;\n}\n\n.mt-5 {\n  margin-top: 3rem !important;\n}\n\n.mt-auto {\n  margin-top: auto !important;\n}\n\n.me-0 {\n  margin-right: 0 !important;\n}\n\n.me-1 {\n  margin-right: 0.25rem !important;\n}\n\n.me-2 {\n  margin-right: 0.5rem !important;\n}\n\n.me-3 {\n  margin-right: 1rem !important;\n}\n\n.me-4 {\n  margin-right: 1.5rem !important;\n}\n\n.me-5 {\n  margin-right: 3rem !important;\n}\n\n.me-auto {\n  margin-right: auto !important;\n}\n\n.mb-0 {\n  margin-bottom: 0 !important;\n}\n\n.mb-1 {\n  margin-bottom: 0.25rem !important;\n}\n\n.mb-2 {\n  margin-bottom: 0.5rem !important;\n}\n\n.mb-3 {\n  margin-bottom: 1rem !important;\n}\n\n.mb-4 {\n  margin-bottom: 1.5rem !important;\n}\n\n.mb-5 {\n  margin-bottom: 3rem !important;\n}\n\n.mb-auto {\n  margin-bottom: auto !important;\n}\n\n.ms-0 {\n  margin-left: 0 !important;\n}\n\n.ms-1 {\n  margin-left: 0.25rem !important;\n}\n\n.ms-2 {\n  margin-left: 0.5rem !important;\n}\n\n.ms-3 {\n  margin-left: 1rem !important;\n}\n\n.ms-4 {\n  margin-left: 1.5rem !important;\n}\n\n.ms-5 {\n  margin-left: 3rem !important;\n}\n\n.ms-auto {\n  margin-left: auto !important;\n}\n\n.p-0 {\n  padding: 0 !important;\n}\n\n.p-1 {\n  padding: 0.25rem !important;\n}\n\n.p-2 {\n  padding: 0.5rem !important;\n}\n\n.p-3 {\n  padding: 1rem !important;\n}\n\n.p-4 {\n  padding: 1.5rem !important;\n}\n\n.p-5 {\n  padding: 3rem !important;\n}\n\n.px-0 {\n  padding-right: 0 !important;\n  padding-left: 0 !important;\n}\n\n.px-1 {\n  padding-right: 0.25rem !important;\n  padding-left: 0.25rem !important;\n}\n\n.px-2 {\n  padding-right: 0.5rem !important;\n  padding-left: 0.5rem !important;\n}\n\n.px-3 {\n  padding-right: 1rem !important;\n  padding-left: 1rem !important;\n}\n\n.px-4 {\n  padding-right: 1.5rem !important;\n  padding-left: 1.5rem !important;\n}\n\n.px-5 {\n  padding-right: 3rem !important;\n  padding-left: 3rem !important;\n}\n\n.py-0 {\n  padding-top: 0 !important;\n  padding-bottom: 0 !important;\n}\n\n.py-1 {\n  padding-top: 0.25rem !important;\n  padding-bottom: 0.25rem !important;\n}\n\n.py-2 {\n  padding-top: 0.5rem !important;\n  padding-bottom: 0.5rem !important;\n}\n\n.py-3 {\n  padding-top: 1rem !important;\n  padding-bottom: 1rem !important;\n}\n\n.py-4 {\n  padding-top: 1.5rem !important;\n  padding-bottom: 1.5rem !important;\n}\n\n.py-5 {\n  padding-top: 3rem !important;\n  padding-bottom: 3rem !important;\n}\n\n.pt-0 {\n  padding-top: 0 !important;\n}\n\n.pt-1 {\n  padding-top: 0.25rem !important;\n}\n\n.pt-2 {\n  padding-top: 0.5rem !important;\n}\n\n.pt-3 {\n  padding-top: 1rem !important;\n}\n\n.pt-4 {\n  padding-top: 1.5rem !important;\n}\n\n.pt-5 {\n  padding-top: 3rem !important;\n}\n\n.pe-0 {\n  padding-right: 0 !important;\n}\n\n.pe-1 {\n  padding-right: 0.25rem !important;\n}\n\n.pe-2 {\n  padding-right: 0.5rem !important;\n}\n\n.pe-3 {\n  padding-right: 1rem !important;\n}\n\n.pe-4 {\n  padding-right: 1.5rem !important;\n}\n\n.pe-5 {\n  padding-right: 3rem !important;\n}\n\n.pb-0 {\n  padding-bottom: 0 !important;\n}\n\n.pb-1 {\n  padding-bottom: 0.25rem !important;\n}\n\n.pb-2 {\n  padding-bottom: 0.5rem !important;\n}\n\n.pb-3 {\n  padding-bottom: 1rem !important;\n}\n\n.pb-4 {\n  padding-bottom: 1.5rem !important;\n}\n\n.pb-5 {\n  padding-bottom: 3rem !important;\n}\n\n.ps-0 {\n  padding-left: 0 !important;\n}\n\n.ps-1 {\n  padding-left: 0.25rem !important;\n}\n\n.ps-2 {\n  padding-left: 0.5rem !important;\n}\n\n.ps-3 {\n  padding-left: 1rem !important;\n}\n\n.ps-4 {\n  padding-left: 1.5rem !important;\n}\n\n.ps-5 {\n  padding-left: 3rem !important;\n}\n\n.font-monospace {\n  font-family: var(--bs-font-monospace) !important;\n}\n\n.fs-1 {\n  font-size: calc(1.375rem + 1.5vw) !important;\n}\n\n.fs-2 {\n  font-size: calc(1.325rem + 0.9vw) !important;\n}\n\n.fs-3 {\n  font-size: calc(1.3rem + 0.6vw) !important;\n}\n\n.fs-4 {\n  font-size: calc(1.275rem + 0.3vw) !important;\n}\n\n.fs-5 {\n  font-size: 1.25rem !important;\n}\n\n.fs-6 {\n  font-size: 1rem !important;\n}\n\n.fst-italic {\n  font-style: italic !important;\n}\n\n.fst-normal {\n  font-style: normal !important;\n}\n\n.fw-light {\n  font-weight: 300 !important;\n}\n\n.fw-lighter {\n  font-weight: lighter !important;\n}\n\n.fw-normal {\n  font-weight: 400 !important;\n}\n\n.fw-bold {\n  font-weight: 700 !important;\n}\n\n.fw-bolder {\n  font-weight: bolder !important;\n}\n\n.lh-1 {\n  line-height: 1 !important;\n}\n\n.lh-sm {\n  line-height: 1.25 !important;\n}\n\n.lh-base {\n  line-height: 1.5 !important;\n}\n\n.lh-lg {\n  line-height: 2 !important;\n}\n\n.text-start {\n  text-align: left !important;\n}\n\n.text-end {\n  text-align: right !important;\n}\n\n.text-center {\n  text-align: center !important;\n}\n\n.text-decoration-none {\n  text-decoration: none !important;\n}\n\n.text-decoration-underline {\n  text-decoration: underline !important;\n}\n\n.text-decoration-line-through {\n  text-decoration: line-through !important;\n}\n\n.text-lowercase {\n  text-transform: lowercase !important;\n}\n\n.text-uppercase {\n  text-transform: uppercase !important;\n}\n\n.text-capitalize {\n  text-transform: capitalize !important;\n}\n\n.text-wrap {\n  white-space: normal !important;\n}\n\n.text-nowrap {\n  white-space: nowrap !important;\n}\n\n/* rtl:begin:remove */\n.text-break {\n  word-wrap: break-word !important;\n  word-break: break-word !important;\n}\n\n/* rtl:end:remove */\n.text-primary {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-primary-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-secondary {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-secondary-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-success {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-success-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-info {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-info-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-warning {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-warning-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-danger {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-danger-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-light {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-light-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-dark {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-dark-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-black {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-black-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-white {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-white-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-body {\n  --bs-text-opacity: 1;\n  color: rgba(var(--bs-body-rgb), var(--bs-text-opacity)) !important;\n}\n\n.text-muted {\n  --bs-text-opacity: 1;\n  color: #6c757d !important;\n}\n\n.text-black-50 {\n  --bs-text-opacity: 1;\n  color: rgba(0, 0, 0, 0.5) !important;\n}\n\n.text-white-50 {\n  --bs-text-opacity: 1;\n  color: rgba(255, 255, 255, 0.5) !important;\n}\n\n.text-reset {\n  --bs-text-opacity: 1;\n  color: inherit !important;\n}\n\n.text-opacity-25 {\n  --bs-text-opacity: 0.25;\n}\n\n.text-opacity-50 {\n  --bs-text-opacity: 0.5;\n}\n\n.text-opacity-75 {\n  --bs-text-opacity: 0.75;\n}\n\n.text-opacity-100 {\n  --bs-text-opacity: 1;\n}\n\n.bg-primary {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-primary-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-secondary {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-secondary-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-success {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-success-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-info {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-info-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-warning {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-warning-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-danger {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-danger-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-light {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-light-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-dark {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-dark-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-black {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-black-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-white {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-white-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-body {\n  --bs-bg-opacity: 1;\n  background-color: rgba(var(--bs-body-rgb), var(--bs-bg-opacity)) !important;\n}\n\n.bg-transparent {\n  --bs-bg-opacity: 1;\n  background-color: transparent !important;\n}\n\n.bg-opacity-10 {\n  --bs-bg-opacity: 0.1;\n}\n\n.bg-opacity-25 {\n  --bs-bg-opacity: 0.25;\n}\n\n.bg-opacity-50 {\n  --bs-bg-opacity: 0.5;\n}\n\n.bg-opacity-75 {\n  --bs-bg-opacity: 0.75;\n}\n\n.bg-opacity-100 {\n  --bs-bg-opacity: 1;\n}\n\n.bg-gradient {\n  background-image: var(--bs-gradient) !important;\n}\n\n.user-select-all {\n  -webkit-user-select: all !important;\n  -moz-user-select: all !important;\n  user-select: all !important;\n}\n\n.user-select-auto {\n  -webkit-user-select: auto !important;\n  -moz-user-select: auto !important;\n  user-select: auto !important;\n}\n\n.user-select-none {\n  -webkit-user-select: none !important;\n  -moz-user-select: none !important;\n  user-select: none !important;\n}\n\n.pe-none {\n  pointer-events: none !important;\n}\n\n.pe-auto {\n  pointer-events: auto !important;\n}\n\n.rounded {\n  border-radius: 0.25rem !important;\n}\n\n.rounded-0 {\n  border-radius: 0 !important;\n}\n\n.rounded-1 {\n  border-radius: 0.2rem !important;\n}\n\n.rounded-2 {\n  border-radius: 0.25rem !important;\n}\n\n.rounded-3 {\n  border-radius: 0.3rem !important;\n}\n\n.rounded-circle {\n  border-radius: 50% !important;\n}\n\n.rounded-pill {\n  border-radius: 50rem !important;\n}\n\n.rounded-top {\n  border-top-left-radius: 0.25rem !important;\n  border-top-right-radius: 0.25rem !important;\n}\n\n.rounded-end {\n  border-top-right-radius: 0.25rem !important;\n  border-bottom-right-radius: 0.25rem !important;\n}\n\n.rounded-bottom {\n  border-bottom-right-radius: 0.25rem !important;\n  border-bottom-left-radius: 0.25rem !important;\n}\n\n.rounded-start {\n  border-bottom-left-radius: 0.25rem !important;\n  border-top-left-radius: 0.25rem !important;\n}\n\n.visible {\n  visibility: visible !important;\n}\n\n.invisible {\n  visibility: hidden !important;\n}\n\n@media (min-width: 576px) {\n  .float-sm-start {\n    float: left !important;\n  }\n\n  .float-sm-end {\n    float: right !important;\n  }\n\n  .float-sm-none {\n    float: none !important;\n  }\n\n  .d-sm-inline {\n    display: inline !important;\n  }\n\n  .d-sm-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-sm-block {\n    display: block !important;\n  }\n\n  .d-sm-grid {\n    display: grid !important;\n  }\n\n  .d-sm-table {\n    display: table !important;\n  }\n\n  .d-sm-table-row {\n    display: table-row !important;\n  }\n\n  .d-sm-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-sm-flex {\n    display: flex !important;\n  }\n\n  .d-sm-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-sm-none {\n    display: none !important;\n  }\n\n  .flex-sm-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-sm-row {\n    flex-direction: row !important;\n  }\n\n  .flex-sm-column {\n    flex-direction: column !important;\n  }\n\n  .flex-sm-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-sm-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-sm-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-sm-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-sm-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-sm-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-sm-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-sm-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-sm-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-sm-0 {\n    gap: 0 !important;\n  }\n\n  .gap-sm-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-sm-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-sm-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-sm-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-sm-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-sm-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-sm-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-sm-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-sm-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-sm-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-sm-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-sm-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-sm-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-sm-center {\n    align-items: center !important;\n  }\n\n  .align-items-sm-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-sm-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-sm-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-sm-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-sm-center {\n    align-content: center !important;\n  }\n\n  .align-content-sm-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-sm-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-sm-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-sm-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-sm-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-sm-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-sm-center {\n    align-self: center !important;\n  }\n\n  .align-self-sm-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-sm-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-sm-first {\n    order: -1 !important;\n  }\n\n  .order-sm-0 {\n    order: 0 !important;\n  }\n\n  .order-sm-1 {\n    order: 1 !important;\n  }\n\n  .order-sm-2 {\n    order: 2 !important;\n  }\n\n  .order-sm-3 {\n    order: 3 !important;\n  }\n\n  .order-sm-4 {\n    order: 4 !important;\n  }\n\n  .order-sm-5 {\n    order: 5 !important;\n  }\n\n  .order-sm-last {\n    order: 6 !important;\n  }\n\n  .m-sm-0 {\n    margin: 0 !important;\n  }\n\n  .m-sm-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-sm-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-sm-3 {\n    margin: 1rem !important;\n  }\n\n  .m-sm-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-sm-5 {\n    margin: 3rem !important;\n  }\n\n  .m-sm-auto {\n    margin: auto !important;\n  }\n\n  .mx-sm-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-sm-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-sm-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-sm-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-sm-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-sm-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-sm-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-sm-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-sm-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-sm-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-sm-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-sm-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-sm-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-sm-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-sm-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-sm-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-sm-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-sm-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-sm-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-sm-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-sm-auto {\n    margin-top: auto !important;\n  }\n\n  .me-sm-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-sm-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-sm-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-sm-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-sm-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-sm-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-sm-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-sm-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-sm-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-sm-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-sm-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-sm-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-sm-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-sm-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-sm-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-sm-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-sm-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-sm-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-sm-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-sm-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-sm-auto {\n    margin-left: auto !important;\n  }\n\n  .p-sm-0 {\n    padding: 0 !important;\n  }\n\n  .p-sm-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-sm-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-sm-3 {\n    padding: 1rem !important;\n  }\n\n  .p-sm-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-sm-5 {\n    padding: 3rem !important;\n  }\n\n  .px-sm-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-sm-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-sm-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-sm-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-sm-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-sm-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-sm-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-sm-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-sm-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-sm-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-sm-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-sm-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-sm-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-sm-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-sm-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-sm-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-sm-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-sm-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-sm-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-sm-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-sm-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-sm-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-sm-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-sm-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-sm-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-sm-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-sm-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-sm-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-sm-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-sm-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-sm-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-sm-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-sm-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-sm-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-sm-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-sm-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-sm-start {\n    text-align: left !important;\n  }\n\n  .text-sm-end {\n    text-align: right !important;\n  }\n\n  .text-sm-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 768px) {\n  .float-md-start {\n    float: left !important;\n  }\n\n  .float-md-end {\n    float: right !important;\n  }\n\n  .float-md-none {\n    float: none !important;\n  }\n\n  .d-md-inline {\n    display: inline !important;\n  }\n\n  .d-md-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-md-block {\n    display: block !important;\n  }\n\n  .d-md-grid {\n    display: grid !important;\n  }\n\n  .d-md-table {\n    display: table !important;\n  }\n\n  .d-md-table-row {\n    display: table-row !important;\n  }\n\n  .d-md-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-md-flex {\n    display: flex !important;\n  }\n\n  .d-md-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-md-none {\n    display: none !important;\n  }\n\n  .flex-md-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-md-row {\n    flex-direction: row !important;\n  }\n\n  .flex-md-column {\n    flex-direction: column !important;\n  }\n\n  .flex-md-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-md-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-md-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-md-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-md-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-md-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-md-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-md-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-md-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-md-0 {\n    gap: 0 !important;\n  }\n\n  .gap-md-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-md-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-md-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-md-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-md-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-md-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-md-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-md-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-md-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-md-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-md-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-md-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-md-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-md-center {\n    align-items: center !important;\n  }\n\n  .align-items-md-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-md-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-md-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-md-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-md-center {\n    align-content: center !important;\n  }\n\n  .align-content-md-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-md-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-md-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-md-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-md-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-md-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-md-center {\n    align-self: center !important;\n  }\n\n  .align-self-md-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-md-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-md-first {\n    order: -1 !important;\n  }\n\n  .order-md-0 {\n    order: 0 !important;\n  }\n\n  .order-md-1 {\n    order: 1 !important;\n  }\n\n  .order-md-2 {\n    order: 2 !important;\n  }\n\n  .order-md-3 {\n    order: 3 !important;\n  }\n\n  .order-md-4 {\n    order: 4 !important;\n  }\n\n  .order-md-5 {\n    order: 5 !important;\n  }\n\n  .order-md-last {\n    order: 6 !important;\n  }\n\n  .m-md-0 {\n    margin: 0 !important;\n  }\n\n  .m-md-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-md-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-md-3 {\n    margin: 1rem !important;\n  }\n\n  .m-md-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-md-5 {\n    margin: 3rem !important;\n  }\n\n  .m-md-auto {\n    margin: auto !important;\n  }\n\n  .mx-md-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-md-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-md-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-md-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-md-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-md-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-md-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-md-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-md-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-md-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-md-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-md-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-md-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-md-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-md-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-md-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-md-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-md-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-md-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-md-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-md-auto {\n    margin-top: auto !important;\n  }\n\n  .me-md-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-md-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-md-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-md-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-md-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-md-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-md-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-md-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-md-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-md-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-md-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-md-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-md-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-md-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-md-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-md-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-md-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-md-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-md-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-md-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-md-auto {\n    margin-left: auto !important;\n  }\n\n  .p-md-0 {\n    padding: 0 !important;\n  }\n\n  .p-md-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-md-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-md-3 {\n    padding: 1rem !important;\n  }\n\n  .p-md-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-md-5 {\n    padding: 3rem !important;\n  }\n\n  .px-md-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-md-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-md-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-md-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-md-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-md-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-md-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-md-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-md-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-md-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-md-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-md-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-md-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-md-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-md-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-md-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-md-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-md-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-md-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-md-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-md-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-md-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-md-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-md-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-md-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-md-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-md-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-md-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-md-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-md-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-md-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-md-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-md-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-md-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-md-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-md-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-md-start {\n    text-align: left !important;\n  }\n\n  .text-md-end {\n    text-align: right !important;\n  }\n\n  .text-md-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 992px) {\n  .float-lg-start {\n    float: left !important;\n  }\n\n  .float-lg-end {\n    float: right !important;\n  }\n\n  .float-lg-none {\n    float: none !important;\n  }\n\n  .d-lg-inline {\n    display: inline !important;\n  }\n\n  .d-lg-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-lg-block {\n    display: block !important;\n  }\n\n  .d-lg-grid {\n    display: grid !important;\n  }\n\n  .d-lg-table {\n    display: table !important;\n  }\n\n  .d-lg-table-row {\n    display: table-row !important;\n  }\n\n  .d-lg-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-lg-flex {\n    display: flex !important;\n  }\n\n  .d-lg-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-lg-none {\n    display: none !important;\n  }\n\n  .flex-lg-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-lg-row {\n    flex-direction: row !important;\n  }\n\n  .flex-lg-column {\n    flex-direction: column !important;\n  }\n\n  .flex-lg-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-lg-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-lg-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-lg-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-lg-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-lg-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-lg-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-lg-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-lg-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-lg-0 {\n    gap: 0 !important;\n  }\n\n  .gap-lg-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-lg-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-lg-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-lg-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-lg-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-lg-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-lg-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-lg-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-lg-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-lg-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-lg-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-lg-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-lg-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-lg-center {\n    align-items: center !important;\n  }\n\n  .align-items-lg-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-lg-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-lg-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-lg-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-lg-center {\n    align-content: center !important;\n  }\n\n  .align-content-lg-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-lg-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-lg-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-lg-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-lg-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-lg-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-lg-center {\n    align-self: center !important;\n  }\n\n  .align-self-lg-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-lg-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-lg-first {\n    order: -1 !important;\n  }\n\n  .order-lg-0 {\n    order: 0 !important;\n  }\n\n  .order-lg-1 {\n    order: 1 !important;\n  }\n\n  .order-lg-2 {\n    order: 2 !important;\n  }\n\n  .order-lg-3 {\n    order: 3 !important;\n  }\n\n  .order-lg-4 {\n    order: 4 !important;\n  }\n\n  .order-lg-5 {\n    order: 5 !important;\n  }\n\n  .order-lg-last {\n    order: 6 !important;\n  }\n\n  .m-lg-0 {\n    margin: 0 !important;\n  }\n\n  .m-lg-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-lg-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-lg-3 {\n    margin: 1rem !important;\n  }\n\n  .m-lg-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-lg-5 {\n    margin: 3rem !important;\n  }\n\n  .m-lg-auto {\n    margin: auto !important;\n  }\n\n  .mx-lg-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-lg-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-lg-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-lg-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-lg-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-lg-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-lg-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-lg-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-lg-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-lg-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-lg-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-lg-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-lg-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-lg-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-lg-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-lg-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-lg-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-lg-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-lg-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-lg-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-lg-auto {\n    margin-top: auto !important;\n  }\n\n  .me-lg-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-lg-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-lg-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-lg-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-lg-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-lg-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-lg-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-lg-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-lg-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-lg-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-lg-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-lg-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-lg-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-lg-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-lg-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-lg-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-lg-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-lg-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-lg-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-lg-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-lg-auto {\n    margin-left: auto !important;\n  }\n\n  .p-lg-0 {\n    padding: 0 !important;\n  }\n\n  .p-lg-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-lg-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-lg-3 {\n    padding: 1rem !important;\n  }\n\n  .p-lg-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-lg-5 {\n    padding: 3rem !important;\n  }\n\n  .px-lg-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-lg-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-lg-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-lg-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-lg-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-lg-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-lg-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-lg-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-lg-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-lg-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-lg-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-lg-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-lg-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-lg-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-lg-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-lg-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-lg-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-lg-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-lg-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-lg-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-lg-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-lg-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-lg-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-lg-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-lg-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-lg-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-lg-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-lg-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-lg-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-lg-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-lg-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-lg-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-lg-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-lg-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-lg-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-lg-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-lg-start {\n    text-align: left !important;\n  }\n\n  .text-lg-end {\n    text-align: right !important;\n  }\n\n  .text-lg-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 1200px) {\n  .float-xl-start {\n    float: left !important;\n  }\n\n  .float-xl-end {\n    float: right !important;\n  }\n\n  .float-xl-none {\n    float: none !important;\n  }\n\n  .d-xl-inline {\n    display: inline !important;\n  }\n\n  .d-xl-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-xl-block {\n    display: block !important;\n  }\n\n  .d-xl-grid {\n    display: grid !important;\n  }\n\n  .d-xl-table {\n    display: table !important;\n  }\n\n  .d-xl-table-row {\n    display: table-row !important;\n  }\n\n  .d-xl-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-xl-flex {\n    display: flex !important;\n  }\n\n  .d-xl-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-xl-none {\n    display: none !important;\n  }\n\n  .flex-xl-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-xl-row {\n    flex-direction: row !important;\n  }\n\n  .flex-xl-column {\n    flex-direction: column !important;\n  }\n\n  .flex-xl-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-xl-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-xl-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-xl-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-xl-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-xl-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-xl-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-xl-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-xl-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-xl-0 {\n    gap: 0 !important;\n  }\n\n  .gap-xl-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-xl-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-xl-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-xl-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-xl-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-xl-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-xl-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-xl-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-xl-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-xl-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-xl-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-xl-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-xl-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-xl-center {\n    align-items: center !important;\n  }\n\n  .align-items-xl-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-xl-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-xl-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-xl-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-xl-center {\n    align-content: center !important;\n  }\n\n  .align-content-xl-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-xl-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-xl-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-xl-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-xl-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-xl-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-xl-center {\n    align-self: center !important;\n  }\n\n  .align-self-xl-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-xl-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-xl-first {\n    order: -1 !important;\n  }\n\n  .order-xl-0 {\n    order: 0 !important;\n  }\n\n  .order-xl-1 {\n    order: 1 !important;\n  }\n\n  .order-xl-2 {\n    order: 2 !important;\n  }\n\n  .order-xl-3 {\n    order: 3 !important;\n  }\n\n  .order-xl-4 {\n    order: 4 !important;\n  }\n\n  .order-xl-5 {\n    order: 5 !important;\n  }\n\n  .order-xl-last {\n    order: 6 !important;\n  }\n\n  .m-xl-0 {\n    margin: 0 !important;\n  }\n\n  .m-xl-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-xl-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-xl-3 {\n    margin: 1rem !important;\n  }\n\n  .m-xl-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-xl-5 {\n    margin: 3rem !important;\n  }\n\n  .m-xl-auto {\n    margin: auto !important;\n  }\n\n  .mx-xl-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-xl-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-xl-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-xl-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-xl-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-xl-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-xl-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-xl-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-xl-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-xl-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-xl-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-xl-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-xl-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-xl-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-xl-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-xl-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-xl-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-xl-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-xl-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-xl-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-xl-auto {\n    margin-top: auto !important;\n  }\n\n  .me-xl-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-xl-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-xl-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-xl-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-xl-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-xl-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-xl-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-xl-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-xl-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-xl-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-xl-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-xl-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-xl-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-xl-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-xl-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-xl-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-xl-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-xl-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-xl-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-xl-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-xl-auto {\n    margin-left: auto !important;\n  }\n\n  .p-xl-0 {\n    padding: 0 !important;\n  }\n\n  .p-xl-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-xl-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-xl-3 {\n    padding: 1rem !important;\n  }\n\n  .p-xl-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-xl-5 {\n    padding: 3rem !important;\n  }\n\n  .px-xl-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-xl-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-xl-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-xl-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-xl-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-xl-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-xl-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-xl-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-xl-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-xl-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-xl-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-xl-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-xl-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-xl-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-xl-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-xl-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-xl-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-xl-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-xl-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-xl-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-xl-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-xl-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-xl-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-xl-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-xl-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-xl-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-xl-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-xl-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-xl-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-xl-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-xl-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-xl-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-xl-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-xl-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-xl-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-xl-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-xl-start {\n    text-align: left !important;\n  }\n\n  .text-xl-end {\n    text-align: right !important;\n  }\n\n  .text-xl-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 1400px) {\n  .float-xxl-start {\n    float: left !important;\n  }\n\n  .float-xxl-end {\n    float: right !important;\n  }\n\n  .float-xxl-none {\n    float: none !important;\n  }\n\n  .d-xxl-inline {\n    display: inline !important;\n  }\n\n  .d-xxl-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-xxl-block {\n    display: block !important;\n  }\n\n  .d-xxl-grid {\n    display: grid !important;\n  }\n\n  .d-xxl-table {\n    display: table !important;\n  }\n\n  .d-xxl-table-row {\n    display: table-row !important;\n  }\n\n  .d-xxl-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-xxl-flex {\n    display: flex !important;\n  }\n\n  .d-xxl-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-xxl-none {\n    display: none !important;\n  }\n\n  .flex-xxl-fill {\n    flex: 1 1 auto !important;\n  }\n\n  .flex-xxl-row {\n    flex-direction: row !important;\n  }\n\n  .flex-xxl-column {\n    flex-direction: column !important;\n  }\n\n  .flex-xxl-row-reverse {\n    flex-direction: row-reverse !important;\n  }\n\n  .flex-xxl-column-reverse {\n    flex-direction: column-reverse !important;\n  }\n\n  .flex-xxl-grow-0 {\n    flex-grow: 0 !important;\n  }\n\n  .flex-xxl-grow-1 {\n    flex-grow: 1 !important;\n  }\n\n  .flex-xxl-shrink-0 {\n    flex-shrink: 0 !important;\n  }\n\n  .flex-xxl-shrink-1 {\n    flex-shrink: 1 !important;\n  }\n\n  .flex-xxl-wrap {\n    flex-wrap: wrap !important;\n  }\n\n  .flex-xxl-nowrap {\n    flex-wrap: nowrap !important;\n  }\n\n  .flex-xxl-wrap-reverse {\n    flex-wrap: wrap-reverse !important;\n  }\n\n  .gap-xxl-0 {\n    gap: 0 !important;\n  }\n\n  .gap-xxl-1 {\n    gap: 0.25rem !important;\n  }\n\n  .gap-xxl-2 {\n    gap: 0.5rem !important;\n  }\n\n  .gap-xxl-3 {\n    gap: 1rem !important;\n  }\n\n  .gap-xxl-4 {\n    gap: 1.5rem !important;\n  }\n\n  .gap-xxl-5 {\n    gap: 3rem !important;\n  }\n\n  .justify-content-xxl-start {\n    justify-content: flex-start !important;\n  }\n\n  .justify-content-xxl-end {\n    justify-content: flex-end !important;\n  }\n\n  .justify-content-xxl-center {\n    justify-content: center !important;\n  }\n\n  .justify-content-xxl-between {\n    justify-content: space-between !important;\n  }\n\n  .justify-content-xxl-around {\n    justify-content: space-around !important;\n  }\n\n  .justify-content-xxl-evenly {\n    justify-content: space-evenly !important;\n  }\n\n  .align-items-xxl-start {\n    align-items: flex-start !important;\n  }\n\n  .align-items-xxl-end {\n    align-items: flex-end !important;\n  }\n\n  .align-items-xxl-center {\n    align-items: center !important;\n  }\n\n  .align-items-xxl-baseline {\n    align-items: baseline !important;\n  }\n\n  .align-items-xxl-stretch {\n    align-items: stretch !important;\n  }\n\n  .align-content-xxl-start {\n    align-content: flex-start !important;\n  }\n\n  .align-content-xxl-end {\n    align-content: flex-end !important;\n  }\n\n  .align-content-xxl-center {\n    align-content: center !important;\n  }\n\n  .align-content-xxl-between {\n    align-content: space-between !important;\n  }\n\n  .align-content-xxl-around {\n    align-content: space-around !important;\n  }\n\n  .align-content-xxl-stretch {\n    align-content: stretch !important;\n  }\n\n  .align-self-xxl-auto {\n    align-self: auto !important;\n  }\n\n  .align-self-xxl-start {\n    align-self: flex-start !important;\n  }\n\n  .align-self-xxl-end {\n    align-self: flex-end !important;\n  }\n\n  .align-self-xxl-center {\n    align-self: center !important;\n  }\n\n  .align-self-xxl-baseline {\n    align-self: baseline !important;\n  }\n\n  .align-self-xxl-stretch {\n    align-self: stretch !important;\n  }\n\n  .order-xxl-first {\n    order: -1 !important;\n  }\n\n  .order-xxl-0 {\n    order: 0 !important;\n  }\n\n  .order-xxl-1 {\n    order: 1 !important;\n  }\n\n  .order-xxl-2 {\n    order: 2 !important;\n  }\n\n  .order-xxl-3 {\n    order: 3 !important;\n  }\n\n  .order-xxl-4 {\n    order: 4 !important;\n  }\n\n  .order-xxl-5 {\n    order: 5 !important;\n  }\n\n  .order-xxl-last {\n    order: 6 !important;\n  }\n\n  .m-xxl-0 {\n    margin: 0 !important;\n  }\n\n  .m-xxl-1 {\n    margin: 0.25rem !important;\n  }\n\n  .m-xxl-2 {\n    margin: 0.5rem !important;\n  }\n\n  .m-xxl-3 {\n    margin: 1rem !important;\n  }\n\n  .m-xxl-4 {\n    margin: 1.5rem !important;\n  }\n\n  .m-xxl-5 {\n    margin: 3rem !important;\n  }\n\n  .m-xxl-auto {\n    margin: auto !important;\n  }\n\n  .mx-xxl-0 {\n    margin-right: 0 !important;\n    margin-left: 0 !important;\n  }\n\n  .mx-xxl-1 {\n    margin-right: 0.25rem !important;\n    margin-left: 0.25rem !important;\n  }\n\n  .mx-xxl-2 {\n    margin-right: 0.5rem !important;\n    margin-left: 0.5rem !important;\n  }\n\n  .mx-xxl-3 {\n    margin-right: 1rem !important;\n    margin-left: 1rem !important;\n  }\n\n  .mx-xxl-4 {\n    margin-right: 1.5rem !important;\n    margin-left: 1.5rem !important;\n  }\n\n  .mx-xxl-5 {\n    margin-right: 3rem !important;\n    margin-left: 3rem !important;\n  }\n\n  .mx-xxl-auto {\n    margin-right: auto !important;\n    margin-left: auto !important;\n  }\n\n  .my-xxl-0 {\n    margin-top: 0 !important;\n    margin-bottom: 0 !important;\n  }\n\n  .my-xxl-1 {\n    margin-top: 0.25rem !important;\n    margin-bottom: 0.25rem !important;\n  }\n\n  .my-xxl-2 {\n    margin-top: 0.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .my-xxl-3 {\n    margin-top: 1rem !important;\n    margin-bottom: 1rem !important;\n  }\n\n  .my-xxl-4 {\n    margin-top: 1.5rem !important;\n    margin-bottom: 1.5rem !important;\n  }\n\n  .my-xxl-5 {\n    margin-top: 3rem !important;\n    margin-bottom: 3rem !important;\n  }\n\n  .my-xxl-auto {\n    margin-top: auto !important;\n    margin-bottom: auto !important;\n  }\n\n  .mt-xxl-0 {\n    margin-top: 0 !important;\n  }\n\n  .mt-xxl-1 {\n    margin-top: 0.25rem !important;\n  }\n\n  .mt-xxl-2 {\n    margin-top: 0.5rem !important;\n  }\n\n  .mt-xxl-3 {\n    margin-top: 1rem !important;\n  }\n\n  .mt-xxl-4 {\n    margin-top: 1.5rem !important;\n  }\n\n  .mt-xxl-5 {\n    margin-top: 3rem !important;\n  }\n\n  .mt-xxl-auto {\n    margin-top: auto !important;\n  }\n\n  .me-xxl-0 {\n    margin-right: 0 !important;\n  }\n\n  .me-xxl-1 {\n    margin-right: 0.25rem !important;\n  }\n\n  .me-xxl-2 {\n    margin-right: 0.5rem !important;\n  }\n\n  .me-xxl-3 {\n    margin-right: 1rem !important;\n  }\n\n  .me-xxl-4 {\n    margin-right: 1.5rem !important;\n  }\n\n  .me-xxl-5 {\n    margin-right: 3rem !important;\n  }\n\n  .me-xxl-auto {\n    margin-right: auto !important;\n  }\n\n  .mb-xxl-0 {\n    margin-bottom: 0 !important;\n  }\n\n  .mb-xxl-1 {\n    margin-bottom: 0.25rem !important;\n  }\n\n  .mb-xxl-2 {\n    margin-bottom: 0.5rem !important;\n  }\n\n  .mb-xxl-3 {\n    margin-bottom: 1rem !important;\n  }\n\n  .mb-xxl-4 {\n    margin-bottom: 1.5rem !important;\n  }\n\n  .mb-xxl-5 {\n    margin-bottom: 3rem !important;\n  }\n\n  .mb-xxl-auto {\n    margin-bottom: auto !important;\n  }\n\n  .ms-xxl-0 {\n    margin-left: 0 !important;\n  }\n\n  .ms-xxl-1 {\n    margin-left: 0.25rem !important;\n  }\n\n  .ms-xxl-2 {\n    margin-left: 0.5rem !important;\n  }\n\n  .ms-xxl-3 {\n    margin-left: 1rem !important;\n  }\n\n  .ms-xxl-4 {\n    margin-left: 1.5rem !important;\n  }\n\n  .ms-xxl-5 {\n    margin-left: 3rem !important;\n  }\n\n  .ms-xxl-auto {\n    margin-left: auto !important;\n  }\n\n  .p-xxl-0 {\n    padding: 0 !important;\n  }\n\n  .p-xxl-1 {\n    padding: 0.25rem !important;\n  }\n\n  .p-xxl-2 {\n    padding: 0.5rem !important;\n  }\n\n  .p-xxl-3 {\n    padding: 1rem !important;\n  }\n\n  .p-xxl-4 {\n    padding: 1.5rem !important;\n  }\n\n  .p-xxl-5 {\n    padding: 3rem !important;\n  }\n\n  .px-xxl-0 {\n    padding-right: 0 !important;\n    padding-left: 0 !important;\n  }\n\n  .px-xxl-1 {\n    padding-right: 0.25rem !important;\n    padding-left: 0.25rem !important;\n  }\n\n  .px-xxl-2 {\n    padding-right: 0.5rem !important;\n    padding-left: 0.5rem !important;\n  }\n\n  .px-xxl-3 {\n    padding-right: 1rem !important;\n    padding-left: 1rem !important;\n  }\n\n  .px-xxl-4 {\n    padding-right: 1.5rem !important;\n    padding-left: 1.5rem !important;\n  }\n\n  .px-xxl-5 {\n    padding-right: 3rem !important;\n    padding-left: 3rem !important;\n  }\n\n  .py-xxl-0 {\n    padding-top: 0 !important;\n    padding-bottom: 0 !important;\n  }\n\n  .py-xxl-1 {\n    padding-top: 0.25rem !important;\n    padding-bottom: 0.25rem !important;\n  }\n\n  .py-xxl-2 {\n    padding-top: 0.5rem !important;\n    padding-bottom: 0.5rem !important;\n  }\n\n  .py-xxl-3 {\n    padding-top: 1rem !important;\n    padding-bottom: 1rem !important;\n  }\n\n  .py-xxl-4 {\n    padding-top: 1.5rem !important;\n    padding-bottom: 1.5rem !important;\n  }\n\n  .py-xxl-5 {\n    padding-top: 3rem !important;\n    padding-bottom: 3rem !important;\n  }\n\n  .pt-xxl-0 {\n    padding-top: 0 !important;\n  }\n\n  .pt-xxl-1 {\n    padding-top: 0.25rem !important;\n  }\n\n  .pt-xxl-2 {\n    padding-top: 0.5rem !important;\n  }\n\n  .pt-xxl-3 {\n    padding-top: 1rem !important;\n  }\n\n  .pt-xxl-4 {\n    padding-top: 1.5rem !important;\n  }\n\n  .pt-xxl-5 {\n    padding-top: 3rem !important;\n  }\n\n  .pe-xxl-0 {\n    padding-right: 0 !important;\n  }\n\n  .pe-xxl-1 {\n    padding-right: 0.25rem !important;\n  }\n\n  .pe-xxl-2 {\n    padding-right: 0.5rem !important;\n  }\n\n  .pe-xxl-3 {\n    padding-right: 1rem !important;\n  }\n\n  .pe-xxl-4 {\n    padding-right: 1.5rem !important;\n  }\n\n  .pe-xxl-5 {\n    padding-right: 3rem !important;\n  }\n\n  .pb-xxl-0 {\n    padding-bottom: 0 !important;\n  }\n\n  .pb-xxl-1 {\n    padding-bottom: 0.25rem !important;\n  }\n\n  .pb-xxl-2 {\n    padding-bottom: 0.5rem !important;\n  }\n\n  .pb-xxl-3 {\n    padding-bottom: 1rem !important;\n  }\n\n  .pb-xxl-4 {\n    padding-bottom: 1.5rem !important;\n  }\n\n  .pb-xxl-5 {\n    padding-bottom: 3rem !important;\n  }\n\n  .ps-xxl-0 {\n    padding-left: 0 !important;\n  }\n\n  .ps-xxl-1 {\n    padding-left: 0.25rem !important;\n  }\n\n  .ps-xxl-2 {\n    padding-left: 0.5rem !important;\n  }\n\n  .ps-xxl-3 {\n    padding-left: 1rem !important;\n  }\n\n  .ps-xxl-4 {\n    padding-left: 1.5rem !important;\n  }\n\n  .ps-xxl-5 {\n    padding-left: 3rem !important;\n  }\n\n  .text-xxl-start {\n    text-align: left !important;\n  }\n\n  .text-xxl-end {\n    text-align: right !important;\n  }\n\n  .text-xxl-center {\n    text-align: center !important;\n  }\n}\n@media (min-width: 1200px) {\n  .fs-1 {\n    font-size: 2.5rem !important;\n  }\n\n  .fs-2 {\n    font-size: 2rem !important;\n  }\n\n  .fs-3 {\n    font-size: 1.75rem !important;\n  }\n\n  .fs-4 {\n    font-size: 1.5rem !important;\n  }\n}\n@media print {\n  .d-print-inline {\n    display: inline !important;\n  }\n\n  .d-print-inline-block {\n    display: inline-block !important;\n  }\n\n  .d-print-block {\n    display: block !important;\n  }\n\n  .d-print-grid {\n    display: grid !important;\n  }\n\n  .d-print-table {\n    display: table !important;\n  }\n\n  .d-print-table-row {\n    display: table-row !important;\n  }\n\n  .d-print-table-cell {\n    display: table-cell !important;\n  }\n\n  .d-print-flex {\n    display: flex !important;\n  }\n\n  .d-print-inline-flex {\n    display: inline-flex !important;\n  }\n\n  .d-print-none {\n    display: none !important;\n  }\n}\n\n/*# sourceMappingURL=bootstrap.css.map */","// stylelint-disable property-blacklist, scss/dollar-variable-default\n\n// SCSS RFS mixin\n//\n// Automated responsive values for font sizes, paddings, margins and much more\n//\n// Licensed under MIT (https://github.com/twbs/rfs/blob/main/LICENSE)\n\n// Configuration\n\n// Base value\n$rfs-base-value: 1.25rem !default;\n$rfs-unit: rem !default;\n\n@if $rfs-unit != rem and $rfs-unit != px {\n  @error \"`#{$rfs-unit}` is not a valid unit for $rfs-unit. Use `px` or `rem`.\";\n}\n\n// Breakpoint at where values start decreasing if screen width is smaller\n$rfs-breakpoint: 1200px !default;\n$rfs-breakpoint-unit: px !default;\n\n@if $rfs-breakpoint-unit != px and $rfs-breakpoint-unit != em and $rfs-breakpoint-unit != rem {\n  @error \"`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit. Use `px`, `em` or `rem`.\";\n}\n\n// Resize values based on screen height and width\n$rfs-two-dimensional: false !default;\n\n// Factor of decrease\n$rfs-factor: 10 !default;\n\n@if type-of($rfs-factor) != number or $rfs-factor <= 1 {\n  @error \"`#{$rfs-factor}` is not a valid  $rfs-factor, it must be greater than 1.\";\n}\n\n// Mode. Possibilities: \"min-media-query\", \"max-media-query\"\n$rfs-mode: min-media-query !default;\n\n// Generate enable or disable classes. Possibilities: false, \"enable\" or \"disable\"\n$rfs-class: false !default;\n\n// 1 rem = $rfs-rem-value px\n$rfs-rem-value: 16 !default;\n\n// Safari iframe resize bug: https://github.com/twbs/rfs/issues/14\n$rfs-safari-iframe-resize-bug-fix: false !default;\n\n// Disable RFS by setting $enable-rfs to false\n$enable-rfs: true !default;\n\n// Cache $rfs-base-value unit\n$rfs-base-value-unit: unit($rfs-base-value);\n\n@function divide($dividend, $divisor, $precision: 10) {\n  $sign: if($dividend > 0 and $divisor > 0 or $dividend < 0 and $divisor < 0, 1, -1);\n  $dividend: abs($dividend);\n  $divisor: abs($divisor);\n  @if $dividend == 0 {\n    @return 0;\n  }\n  @if $divisor == 0 {\n    @error \"Cannot divide by 0\";\n  }\n  $remainder: $dividend;\n  $result: 0;\n  $factor: 10;\n  @while ($remainder > 0 and $precision >= 0) {\n    $quotient: 0;\n    @while ($remainder >= $divisor) {\n      $remainder: $remainder - $divisor;\n      $quotient: $quotient + 1;\n    }\n    $result: $result * 10 + $quotient;\n    $factor: $factor * .1;\n    $remainder: $remainder * 10;\n    $precision: $precision - 1;\n    @if ($precision < 0 and $remainder >= $divisor * 5) {\n      $result: $result + 1;\n    }\n  }\n  $result: $result * $factor * $sign;\n  $dividend-unit: unit($dividend);\n  $divisor-unit: unit($divisor);\n  $unit-map: (\n    \"px\": 1px,\n    \"rem\": 1rem,\n    \"em\": 1em,\n    \"%\": 1%\n  );\n  @if ($dividend-unit != $divisor-unit and map-has-key($unit-map, $dividend-unit)) {\n    $result: $result * map-get($unit-map, $dividend-unit);\n  }\n  @return $result;\n}\n\n// Remove px-unit from $rfs-base-value for calculations\n@if $rfs-base-value-unit == px {\n  $rfs-base-value: divide($rfs-base-value, $rfs-base-value * 0 + 1);\n}\n@else if $rfs-base-value-unit == rem {\n  $rfs-base-value: divide($rfs-base-value, divide($rfs-base-value * 0 + 1, $rfs-rem-value));\n}\n\n// Cache $rfs-breakpoint unit to prevent multiple calls\n$rfs-breakpoint-unit-cache: unit($rfs-breakpoint);\n\n// Remove unit from $rfs-breakpoint for calculations\n@if $rfs-breakpoint-unit-cache == px {\n  $rfs-breakpoint: divide($rfs-breakpoint, $rfs-breakpoint * 0 + 1);\n}\n@else if $rfs-breakpoint-unit-cache == rem or $rfs-breakpoint-unit-cache == \"em\" {\n  $rfs-breakpoint: divide($rfs-breakpoint, divide($rfs-breakpoint * 0 + 1, $rfs-rem-value));\n}\n\n// Calculate the media query value\n$rfs-mq-value: if($rfs-breakpoint-unit == px, #{$rfs-breakpoint}px, #{divide($rfs-breakpoint, $rfs-rem-value)}#{$rfs-breakpoint-unit});\n$rfs-mq-property-width: if($rfs-mode == max-media-query, max-width, min-width);\n$rfs-mq-property-height: if($rfs-mode == max-media-query, max-height, min-height);\n\n// Internal mixin used to determine which media query needs to be used\n@mixin _rfs-media-query {\n  @if $rfs-two-dimensional {\n    @if $rfs-mode == max-media-query {\n      @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}), (#{$rfs-mq-property-height}: #{$rfs-mq-value}) {\n        @content;\n      }\n    }\n    @else {\n      @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) and (#{$rfs-mq-property-height}: #{$rfs-mq-value}) {\n        @content;\n      }\n    }\n  }\n  @else {\n    @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) {\n      @content;\n    }\n  }\n}\n\n// Internal mixin that adds disable classes to the selector if needed.\n@mixin _rfs-rule {\n  @if $rfs-class == disable and $rfs-mode == max-media-query {\n    // Adding an extra class increases specificity, which prevents the media query to override the property\n    &,\n    .disable-rfs &,\n    &.disable-rfs {\n      @content;\n    }\n  }\n  @else if $rfs-class == enable and $rfs-mode == min-media-query {\n    .enable-rfs &,\n    &.enable-rfs {\n      @content;\n    }\n  }\n  @else {\n    @content;\n  }\n}\n\n// Internal mixin that adds enable classes to the selector if needed.\n@mixin _rfs-media-query-rule {\n\n  @if $rfs-class == enable {\n    @if $rfs-mode == min-media-query {\n      @content;\n    }\n\n    @include _rfs-media-query {\n      .enable-rfs &,\n      &.enable-rfs {\n        @content;\n      }\n    }\n  }\n  @else {\n    @if $rfs-class == disable and $rfs-mode == min-media-query {\n      .disable-rfs &,\n      &.disable-rfs {\n        @content;\n      }\n    }\n    @include _rfs-media-query {\n      @content;\n    }\n  }\n}\n\n// Helper function to get the formatted non-responsive value\n@function rfs-value($values) {\n  // Convert to list\n  $values: if(type-of($values) != list, ($values,), $values);\n\n  $val: '';\n\n  // Loop over each value and calculate value\n  @each $value in $values {\n    @if $value == 0 {\n      $val: $val + ' 0';\n    }\n    @else {\n      // Cache $value unit\n      $unit: if(type-of($value) == \"number\", unit($value), false);\n\n      @if $unit == px {\n        // Convert to rem if needed\n        $val: $val + ' ' + if($rfs-unit == rem, #{divide($value, $value * 0 + $rfs-rem-value)}rem, $value);\n      }\n      @else if $unit == rem {\n        // Convert to px if needed\n        $val: $val + ' ' + if($rfs-unit == px, #{divide($value, $value * 0 + 1) * $rfs-rem-value}px, $value);\n      }\n      @else {\n        // If $value isn't a number (like inherit) or $value has a unit (not px or rem, like 1.5em) or $ is 0, just print the value\n        $val: $val + ' ' + $value;\n      }\n    }\n  }\n\n  // Remove first space\n  @return unquote(str-slice($val, 2));\n}\n\n// Helper function to get the responsive value calculated by RFS\n@function rfs-fluid-value($values) {\n  // Convert to list\n  $values: if(type-of($values) != list, ($values,), $values);\n\n  $val: '';\n\n  // Loop over each value and calculate value\n  @each $value in $values {\n    @if $value == 0 {\n      $val: $val + ' 0';\n    }\n\n    @else {\n      // Cache $value unit\n      $unit: if(type-of($value) == \"number\", unit($value), false);\n\n      // If $value isn't a number (like inherit) or $value has a unit (not px or rem, like 1.5em) or $ is 0, just print the value\n      @if not $unit or $unit != px and $unit != rem {\n        $val: $val + ' ' + $value;\n      }\n\n      @else {\n        // Remove unit from $value for calculations\n        $value: divide($value, $value * 0 + if($unit == px, 1, divide(1, $rfs-rem-value)));\n\n        // Only add the media query if the value is greater than the minimum value\n        @if abs($value) <= $rfs-base-value or not $enable-rfs {\n          $val: $val + ' ' +  if($rfs-unit == rem, #{divide($value, $rfs-rem-value)}rem, #{$value}px);\n        }\n        @else {\n          // Calculate the minimum value\n          $value-min: $rfs-base-value + divide(abs($value) - $rfs-base-value, $rfs-factor);\n\n          // Calculate difference between $value and the minimum value\n          $value-diff: abs($value) - $value-min;\n\n          // Base value formatting\n          $min-width: if($rfs-unit == rem, #{divide($value-min, $rfs-rem-value)}rem, #{$value-min}px);\n\n          // Use negative value if needed\n          $min-width: if($value < 0, -$min-width, $min-width);\n\n          // Use `vmin` if two-dimensional is enabled\n          $variable-unit: if($rfs-two-dimensional, vmin, vw);\n\n          // Calculate the variable width between 0 and $rfs-breakpoint\n          $variable-width: #{divide($value-diff * 100, $rfs-breakpoint)}#{$variable-unit};\n\n          // Return the calculated value\n          $val: $val + ' calc(' + $min-width + if($value < 0, ' - ', ' + ') + $variable-width + ')';\n        }\n      }\n    }\n  }\n\n  // Remove first space\n  @return unquote(str-slice($val, 2));\n}\n\n// RFS mixin\n@mixin rfs($values, $property: font-size) {\n  @if $values != null {\n    $val: rfs-value($values);\n    $fluidVal: rfs-fluid-value($values);\n\n    // Do not print the media query if responsive & non-responsive values are the same\n    @if $val == $fluidVal {\n      #{$property}: $val;\n    }\n    @else {\n      @include _rfs-rule {\n        #{$property}: if($rfs-mode == max-media-query, $val, $fluidVal);\n\n        // Include safari iframe resize fix if needed\n        min-width: if($rfs-safari-iframe-resize-bug-fix, (0 * 1vw), null);\n      }\n\n      @include _rfs-media-query-rule {\n        #{$property}: if($rfs-mode == max-media-query, $fluidVal, $val);\n      }\n    }\n  }\n}\n\n// Shorthand helper mixins\n@mixin font-size($value) {\n  @include rfs($value);\n}\n\n@mixin padding($value) {\n  @include rfs($value, padding);\n}\n\n@mixin padding-top($value) {\n  @include rfs($value, padding-top);\n}\n\n@mixin padding-right($value) {\n  @include rfs($value, padding-right);\n}\n\n@mixin padding-bottom($value) {\n  @include rfs($value, padding-bottom);\n}\n\n@mixin padding-left($value) {\n  @include rfs($value, padding-left);\n}\n\n@mixin margin($value) {\n  @include rfs($value, margin);\n}\n\n@mixin margin-top($value) {\n  @include rfs($value, margin-top);\n}\n\n@mixin margin-right($value) {\n  @include rfs($value, margin-right);\n}\n\n@mixin margin-bottom($value) {\n  @include rfs($value, margin-bottom);\n}\n\n@mixin margin-left($value) {\n  @include rfs($value, margin-left);\n}\n","// stylelint-disable property-disallowed-list\n// Single side border-radius\n\n// Helper function to replace negative values with 0\n@function valid-radius($radius) {\n  $return: ();\n  @each $value in $radius {\n    @if type-of($value) == number {\n      $return: append($return, max($value, 0));\n    } @else {\n      $return: append($return, $value);\n    }\n  }\n  @return $return;\n}\n\n// scss-docs-start border-radius-mixins\n@mixin border-radius($radius: $border-radius, $fallback-border-radius: false) {\n  @if $enable-rounded {\n    border-radius: valid-radius($radius);\n  }\n  @else if $fallback-border-radius != false {\n    border-radius: $fallback-border-radius;\n  }\n}\n\n@mixin border-top-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-left-radius: valid-radius($radius);\n    border-top-right-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-end-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-right-radius: valid-radius($radius);\n    border-bottom-right-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-bottom-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-bottom-right-radius: valid-radius($radius);\n    border-bottom-left-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-start-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-left-radius: valid-radius($radius);\n    border-bottom-left-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-top-start-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-left-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-top-end-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-top-right-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-bottom-end-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-bottom-right-radius: valid-radius($radius);\n  }\n}\n\n@mixin border-bottom-start-radius($radius: $border-radius) {\n  @if $enable-rounded {\n    border-bottom-left-radius: valid-radius($radius);\n  }\n}\n// scss-docs-end border-radius-mixins\n","//\n// Headings\n//\n.h1 {\n  @extend h1;\n}\n\n.h2 {\n  @extend h2;\n}\n\n.h3 {\n  @extend h3;\n}\n\n.h4 {\n  @extend h4;\n}\n\n.h5 {\n  @extend h5;\n}\n\n.h6 {\n  @extend h6;\n}\n\n\n.lead {\n  @include font-size($lead-font-size);\n  font-weight: $lead-font-weight;\n}\n\n// Type display classes\n@each $display, $font-size in $display-font-sizes {\n  .display-#{$display} {\n    @include font-size($font-size);\n    font-weight: $display-font-weight;\n    line-height: $display-line-height;\n  }\n}\n\n//\n// Emphasis\n//\n.small {\n  @extend small;\n}\n\n.mark {\n  @extend mark;\n}\n\n//\n// Lists\n//\n\n.list-unstyled {\n  @include list-unstyled();\n}\n\n// Inline turns list items into inline-block\n.list-inline {\n  @include list-unstyled();\n}\n.list-inline-item {\n  display: inline-block;\n\n  &:not(:last-child) {\n    margin-right: $list-inline-padding;\n  }\n}\n\n\n//\n// Misc\n//\n\n// Builds on `abbr`\n.initialism {\n  @include font-size($initialism-font-size);\n  text-transform: uppercase;\n}\n\n// Blockquotes\n.blockquote {\n  margin-bottom: $blockquote-margin-y;\n  @include font-size($blockquote-font-size);\n\n  > :last-child {\n    margin-bottom: 0;\n  }\n}\n\n.blockquote-footer {\n  margin-top: -$blockquote-margin-y;\n  margin-bottom: $blockquote-margin-y;\n  @include font-size($blockquote-footer-font-size);\n  color: $blockquote-footer-color;\n\n  &::before {\n    content: \"\\2014\\00A0\"; // em dash, nbsp\n  }\n}\n","// Lists\n\n// Unstyled keeps list items block level, just removes default browser padding and list-style\n@mixin list-unstyled {\n  padding-left: 0;\n  list-style: none;\n}\n","// Responsive images (ensure images don't scale beyond their parents)\n//\n// This is purposefully opt-in via an explicit class rather than being the default for all `<img>`s.\n// We previously tried the \"images are responsive by default\" approach in Bootstrap v2,\n// and abandoned it in Bootstrap v3 because it breaks lots of third-party widgets (including Google Maps)\n// which weren't expecting the images within themselves to be involuntarily resized.\n// See also https://github.com/twbs/bootstrap/issues/18178\n.img-fluid {\n  @include img-fluid();\n}\n\n\n// Image thumbnails\n.img-thumbnail {\n  padding: $thumbnail-padding;\n  background-color: $thumbnail-bg;\n  border: $thumbnail-border-width solid $thumbnail-border-color;\n  @include border-radius($thumbnail-border-radius);\n  @include box-shadow($thumbnail-box-shadow);\n\n  // Keep them at most 100% wide\n  @include img-fluid();\n}\n\n//\n// Figures\n//\n\n.figure {\n  // Ensures the caption's text aligns with the image.\n  display: inline-block;\n}\n\n.figure-img {\n  margin-bottom: $spacer * .5;\n  line-height: 1;\n}\n\n.figure-caption {\n  @include font-size($figure-caption-font-size);\n  color: $figure-caption-color;\n}\n","// Image Mixins\n// - Responsive image\n// - Retina image\n\n\n// Responsive image\n//\n// Keep images from scaling beyond the width of their parents.\n\n@mixin img-fluid {\n  // Part 1: Set a maximum relative to the parent\n  max-width: 100%;\n  // Part 2: Override the height to auto, otherwise images will be stretched\n  // when setting a width and height attribute on the img element.\n  height: auto;\n}\n","// Container widths\n//\n// Set the container width, and override it for fixed navbars in media queries.\n\n@if $enable-grid-classes {\n  // Single container class with breakpoint max-widths\n  .container,\n  // 100% wide container at all breakpoints\n  .container-fluid {\n    @include make-container();\n  }\n\n  // Responsive containers that are 100% wide until a breakpoint\n  @each $breakpoint, $container-max-width in $container-max-widths {\n    .container-#{$breakpoint} {\n      @extend .container-fluid;\n    }\n\n    @include media-breakpoint-up($breakpoint, $grid-breakpoints) {\n      %responsive-container-#{$breakpoint} {\n        max-width: $container-max-width;\n      }\n\n      // Extend each breakpoint which is smaller or equal to the current breakpoint\n      $extend-breakpoint: true;\n\n      @each $name, $width in $grid-breakpoints {\n        @if ($extend-breakpoint) {\n          .container#{breakpoint-infix($name, $grid-breakpoints)} {\n            @extend %responsive-container-#{$breakpoint};\n          }\n\n          // Once the current breakpoint is reached, stop extending\n          @if ($breakpoint == $name) {\n            $extend-breakpoint: false;\n          }\n        }\n      }\n    }\n  }\n}\n","// Container mixins\n\n@mixin make-container($gutter: $container-padding-x) {\n  width: 100%;\n  padding-right: var(--#{$variable-prefix}gutter-x, #{$gutter});\n  padding-left: var(--#{$variable-prefix}gutter-x, #{$gutter});\n  margin-right: auto;\n  margin-left: auto;\n}\n","// Breakpoint viewport sizes and media queries.\n//\n// Breakpoints are defined as a map of (name: minimum width), order from small to large:\n//\n//    (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px)\n//\n// The map defined in the `$grid-breakpoints` global variable is used as the `$breakpoints` argument by default.\n\n// Name of the next breakpoint, or null for the last breakpoint.\n//\n//    >> breakpoint-next(sm)\n//    md\n//    >> breakpoint-next(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    md\n//    >> breakpoint-next(sm, $breakpoint-names: (xs sm md lg xl))\n//    md\n@function breakpoint-next($name, $breakpoints: $grid-breakpoints, $breakpoint-names: map-keys($breakpoints)) {\n  $n: index($breakpoint-names, $name);\n  @if not $n {\n    @error \"breakpoint `#{$name}` not found in `#{$breakpoints}`\";\n  }\n  @return if($n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null);\n}\n\n// Minimum breakpoint width. Null for the smallest (first) breakpoint.\n//\n//    >> breakpoint-min(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    576px\n@function breakpoint-min($name, $breakpoints: $grid-breakpoints) {\n  $min: map-get($breakpoints, $name);\n  @return if($min != 0, $min, null);\n}\n\n// Maximum breakpoint width.\n// The maximum value is reduced by 0.02px to work around the limitations of\n// `min-` and `max-` prefixes and viewports with fractional widths.\n// See https://www.w3.org/TR/mediaqueries-4/#mq-min-max\n// Uses 0.02px rather than 0.01px to work around a current rounding bug in Safari.\n// See https://bugs.webkit.org/show_bug.cgi?id=178261\n//\n//    >> breakpoint-max(md, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    767.98px\n@function breakpoint-max($name, $breakpoints: $grid-breakpoints) {\n  $max: map-get($breakpoints, $name);\n  @return if($max and $max > 0, $max - .02, null);\n}\n\n// Returns a blank string if smallest breakpoint, otherwise returns the name with a dash in front.\n// Useful for making responsive utilities.\n//\n//    >> breakpoint-infix(xs, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    \"\"  (Returns a blank string)\n//    >> breakpoint-infix(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    \"-sm\"\n@function breakpoint-infix($name, $breakpoints: $grid-breakpoints) {\n  @return if(breakpoint-min($name, $breakpoints) == null, \"\", \"-#{$name}\");\n}\n\n// Media of at least the minimum breakpoint width. No query for the smallest breakpoint.\n// Makes the @content apply to the given breakpoint and wider.\n@mixin media-breakpoint-up($name, $breakpoints: $grid-breakpoints) {\n  $min: breakpoint-min($name, $breakpoints);\n  @if $min {\n    @media (min-width: $min) {\n      @content;\n    }\n  } @else {\n    @content;\n  }\n}\n\n// Media of at most the maximum breakpoint width. No query for the largest breakpoint.\n// Makes the @content apply to the given breakpoint and narrower.\n@mixin media-breakpoint-down($name, $breakpoints: $grid-breakpoints) {\n  $max: breakpoint-max($name, $breakpoints);\n  @if $max {\n    @media (max-width: $max) {\n      @content;\n    }\n  } @else {\n    @content;\n  }\n}\n\n// Media that spans multiple breakpoint widths.\n// Makes the @content apply between the min and max breakpoints\n@mixin media-breakpoint-between($lower, $upper, $breakpoints: $grid-breakpoints) {\n  $min: breakpoint-min($lower, $breakpoints);\n  $max: breakpoint-max($upper, $breakpoints);\n\n  @if $min != null and $max != null {\n    @media (min-width: $min) and (max-width: $max) {\n      @content;\n    }\n  } @else if $max == null {\n    @include media-breakpoint-up($lower, $breakpoints) {\n      @content;\n    }\n  } @else if $min == null {\n    @include media-breakpoint-down($upper, $breakpoints) {\n      @content;\n    }\n  }\n}\n\n// Media between the breakpoint's minimum and maximum widths.\n// No minimum for the smallest breakpoint, and no maximum for the largest one.\n// Makes the @content apply only to the given breakpoint, not viewports any wider or narrower.\n@mixin media-breakpoint-only($name, $breakpoints: $grid-breakpoints) {\n  $min:  breakpoint-min($name, $breakpoints);\n  $next: breakpoint-next($name, $breakpoints);\n  $max:  breakpoint-max($next);\n\n  @if $min != null and $max != null {\n    @media (min-width: $min) and (max-width: $max) {\n      @content;\n    }\n  } @else if $max == null {\n    @include media-breakpoint-up($name, $breakpoints) {\n      @content;\n    }\n  } @else if $min == null {\n    @include media-breakpoint-down($next, $breakpoints) {\n      @content;\n    }\n  }\n}\n","// Row\n//\n// Rows contain your columns.\n\n@if $enable-grid-classes {\n  .row {\n    @include make-row();\n\n    > * {\n      @include make-col-ready();\n    }\n  }\n}\n\n@if $enable-cssgrid {\n  .grid {\n    display: grid;\n    grid-template-rows: repeat(var(--#{$variable-prefix}rows, 1), 1fr);\n    grid-template-columns: repeat(var(--#{$variable-prefix}columns, #{$grid-columns}), 1fr);\n    gap: var(--#{$variable-prefix}gap, #{$grid-gutter-width});\n\n    @include make-cssgrid();\n  }\n}\n\n\n// Columns\n//\n// Common styles for small and large grid columns\n\n@if $enable-grid-classes {\n  @include make-grid-columns();\n}\n","// Grid system\n//\n// Generate semantic grid columns with these mixins.\n\n@mixin make-row($gutter: $grid-gutter-width) {\n  --#{$variable-prefix}gutter-x: #{$gutter};\n  --#{$variable-prefix}gutter-y: 0;\n  display: flex;\n  flex-wrap: wrap;\n  margin-top: calc(var(--#{$variable-prefix}gutter-y) * -1); // stylelint-disable-line function-disallowed-list\n  margin-right: calc(var(--#{$variable-prefix}gutter-x) * -.5); // stylelint-disable-line function-disallowed-list\n  margin-left: calc(var(--#{$variable-prefix}gutter-x) * -.5); // stylelint-disable-line function-disallowed-list\n}\n\n@mixin make-col-ready($gutter: $grid-gutter-width) {\n  // Add box sizing if only the grid is loaded\n  box-sizing: if(variable-exists(include-column-box-sizing) and $include-column-box-sizing, border-box, null);\n  // Prevent columns from becoming too narrow when at smaller grid tiers by\n  // always setting `width: 100%;`. This works because we set the width\n  // later on to override this initial width.\n  flex-shrink: 0;\n  width: 100%;\n  max-width: 100%; // Prevent `.col-auto`, `.col` (& responsive variants) from breaking out the grid\n  padding-right: calc(var(--#{$variable-prefix}gutter-x) * .5); // stylelint-disable-line function-disallowed-list\n  padding-left: calc(var(--#{$variable-prefix}gutter-x) * .5); // stylelint-disable-line function-disallowed-list\n  margin-top: var(--#{$variable-prefix}gutter-y);\n}\n\n@mixin make-col($size: false, $columns: $grid-columns) {\n  @if $size {\n    flex: 0 0 auto;\n    width: percentage(divide($size, $columns));\n\n  } @else {\n    flex: 1 1 0;\n    max-width: 100%;\n  }\n}\n\n@mixin make-col-auto() {\n  flex: 0 0 auto;\n  width: auto;\n}\n\n@mixin make-col-offset($size, $columns: $grid-columns) {\n  $num: divide($size, $columns);\n  margin-left: if($num == 0, 0, percentage($num));\n}\n\n// Row columns\n//\n// Specify on a parent element(e.g., .row) to force immediate children into NN\n// numberof columns. Supports wrapping to new lines, but does not do a Masonry\n// style grid.\n@mixin row-cols($count) {\n  > * {\n    flex: 0 0 auto;\n    width: divide(100%, $count);\n  }\n}\n\n// Framework grid generation\n//\n// Used only by Bootstrap to generate the correct number of grid classes given\n// any value of `$grid-columns`.\n\n@mixin make-grid-columns($columns: $grid-columns, $gutter: $grid-gutter-width, $breakpoints: $grid-breakpoints) {\n  @each $breakpoint in map-keys($breakpoints) {\n    $infix: breakpoint-infix($breakpoint, $breakpoints);\n\n    @include media-breakpoint-up($breakpoint, $breakpoints) {\n      // Provide basic `.col-{bp}` classes for equal-width flexbox columns\n      .col#{$infix} {\n        flex: 1 0 0%; // Flexbugs #4: https://github.com/philipwalton/flexbugs#flexbug-4\n      }\n\n      .row-cols#{$infix}-auto > * {\n        @include make-col-auto();\n      }\n\n      @if $grid-row-columns > 0 {\n        @for $i from 1 through $grid-row-columns {\n          .row-cols#{$infix}-#{$i} {\n            @include row-cols($i);\n          }\n        }\n      }\n\n      .col#{$infix}-auto {\n        @include make-col-auto();\n      }\n\n      @if $columns > 0 {\n        @for $i from 1 through $columns {\n          .col#{$infix}-#{$i} {\n            @include make-col($i, $columns);\n          }\n        }\n\n        // `$columns - 1` because offsetting by the width of an entire row isn't possible\n        @for $i from 0 through ($columns - 1) {\n          @if not ($infix == \"\" and $i == 0) { // Avoid emitting useless .offset-0\n            .offset#{$infix}-#{$i} {\n              @include make-col-offset($i, $columns);\n            }\n          }\n        }\n      }\n\n      // Gutters\n      //\n      // Make use of `.g-*`, `.gx-*` or `.gy-*` utilities to change spacing between the columns.\n      @each $key, $value in $gutters {\n        .g#{$infix}-#{$key},\n        .gx#{$infix}-#{$key} {\n          --#{$variable-prefix}gutter-x: #{$value};\n        }\n\n        .g#{$infix}-#{$key},\n        .gy#{$infix}-#{$key} {\n          --#{$variable-prefix}gutter-y: #{$value};\n        }\n      }\n    }\n  }\n}\n\n@mixin make-cssgrid($columns: $grid-columns, $breakpoints: $grid-breakpoints) {\n  @each $breakpoint in map-keys($breakpoints) {\n    $infix: breakpoint-infix($breakpoint, $breakpoints);\n\n    @include media-breakpoint-up($breakpoint, $breakpoints) {\n      @if $columns > 0 {\n        @for $i from 1 through $columns {\n          .g-col#{$infix}-#{$i} {\n            grid-column: auto / span $i;\n          }\n        }\n\n        // Start with `1` because `0` is and invalid value.\n        // Ends with `$columns - 1` because offsetting by the width of an entire row isn't possible.\n        @for $i from 1 through ($columns - 1) {\n          .g-start#{$infix}-#{$i} {\n            grid-column-start: $i;\n          }\n        }\n      }\n    }\n  }\n}\n","//\n// Basic Bootstrap table\n//\n\n.table {\n  --#{$variable-prefix}table-bg: #{$table-bg};\n  --#{$variable-prefix}table-accent-bg: #{$table-accent-bg};\n  --#{$variable-prefix}table-striped-color: #{$table-striped-color};\n  --#{$variable-prefix}table-striped-bg: #{$table-striped-bg};\n  --#{$variable-prefix}table-active-color: #{$table-active-color};\n  --#{$variable-prefix}table-active-bg: #{$table-active-bg};\n  --#{$variable-prefix}table-hover-color: #{$table-hover-color};\n  --#{$variable-prefix}table-hover-bg: #{$table-hover-bg};\n\n  width: 100%;\n  margin-bottom: $spacer;\n  color: $table-color;\n  vertical-align: $table-cell-vertical-align;\n  border-color: $table-border-color;\n\n  // Target th & td\n  // We need the child combinator to prevent styles leaking to nested tables which doesn't have a `.table` class.\n  // We use the universal selectors here to simplify the selector (else we would need 6 different selectors).\n  // Another advantage is that this generates less code and makes the selector less specific making it easier to override.\n  // stylelint-disable-next-line selector-max-universal\n  > :not(caption) > * > * {\n    padding: $table-cell-padding-y $table-cell-padding-x;\n    background-color: var(--#{$variable-prefix}table-bg);\n    border-bottom-width: $table-border-width;\n    box-shadow: inset 0 0 0 9999px var(--#{$variable-prefix}table-accent-bg);\n  }\n\n  > tbody {\n    vertical-align: inherit;\n  }\n\n  > thead {\n    vertical-align: bottom;\n  }\n\n  // Highlight border color between thead, tbody and tfoot.\n  > :not(:last-child) > :last-child > * {\n    border-bottom-color: $table-group-separator-color;\n  }\n}\n\n\n//\n// Change placement of captions with a class\n//\n\n.caption-top {\n  caption-side: top;\n}\n\n\n//\n// Condensed table w/ half padding\n//\n\n.table-sm {\n  // stylelint-disable-next-line selector-max-universal\n  > :not(caption) > * > * {\n    padding: $table-cell-padding-y-sm $table-cell-padding-x-sm;\n  }\n}\n\n\n// Border versions\n//\n// Add or remove borders all around the table and between all the columns.\n//\n// When borders are added on all sides of the cells, the corners can render odd when\n// these borders do not have the same color or if they are semi-transparent.\n// Therefor we add top and border bottoms to the `tr`s and left and right borders\n// to the `td`s or `th`s\n\n.table-bordered {\n  > :not(caption) > * {\n    border-width: $table-border-width 0;\n\n    // stylelint-disable-next-line selector-max-universal\n    > * {\n      border-width: 0 $table-border-width;\n    }\n  }\n}\n\n.table-borderless {\n  // stylelint-disable-next-line selector-max-universal\n  > :not(caption) > * > * {\n    border-bottom-width: 0;\n  }\n}\n\n// Zebra-striping\n//\n// Default zebra-stripe styles (alternating gray and transparent backgrounds)\n\n.table-striped {\n  > tbody > tr:nth-of-type(#{$table-striped-order}) {\n    --#{$variable-prefix}table-accent-bg: var(--#{$variable-prefix}table-striped-bg);\n    color: var(--#{$variable-prefix}table-striped-color);\n  }\n}\n\n// Active table\n//\n// The `.table-active` class can be added to highlight rows or cells\n\n.table-active {\n  --#{$variable-prefix}table-accent-bg: var(--#{$variable-prefix}table-active-bg);\n  color: var(--#{$variable-prefix}table-active-color);\n}\n\n// Hover effect\n//\n// Placed here since it has to come after the potential zebra striping\n\n.table-hover {\n  > tbody > tr:hover {\n    --#{$variable-prefix}table-accent-bg: var(--#{$variable-prefix}table-hover-bg);\n    color: var(--#{$variable-prefix}table-hover-color);\n  }\n}\n\n\n// Table variants\n//\n// Table variants set the table cell backgrounds, border colors\n// and the colors of the striped, hovered & active tables\n\n@each $color, $value in $table-variants {\n  @include table-variant($color, $value);\n}\n\n// Responsive tables\n//\n// Generate series of `.table-responsive-*` classes for configuring the screen\n// size of where your table will overflow.\n\n@each $breakpoint in map-keys($grid-breakpoints) {\n  $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n  @include media-breakpoint-down($breakpoint) {\n    .table-responsive#{$infix} {\n      overflow-x: auto;\n      -webkit-overflow-scrolling: touch;\n    }\n  }\n}\n","// scss-docs-start table-variant\n@mixin table-variant($state, $background) {\n  .table-#{$state} {\n    $color: color-contrast(opaque($body-bg, $background));\n    $hover-bg: mix($color, $background, percentage($table-hover-bg-factor));\n    $striped-bg: mix($color, $background, percentage($table-striped-bg-factor));\n    $active-bg: mix($color, $background, percentage($table-active-bg-factor));\n\n    --#{$variable-prefix}table-bg: #{$background};\n    --#{$variable-prefix}table-striped-bg: #{$striped-bg};\n    --#{$variable-prefix}table-striped-color: #{color-contrast($striped-bg)};\n    --#{$variable-prefix}table-active-bg: #{$active-bg};\n    --#{$variable-prefix}table-active-color: #{color-contrast($active-bg)};\n    --#{$variable-prefix}table-hover-bg: #{$hover-bg};\n    --#{$variable-prefix}table-hover-color: #{color-contrast($hover-bg)};\n\n    color: $color;\n    border-color: mix($color, $background, percentage($table-border-factor));\n  }\n}\n// scss-docs-end table-variant\n","//\n// Labels\n//\n\n.form-label {\n  margin-bottom: $form-label-margin-bottom;\n  @include font-size($form-label-font-size);\n  font-style: $form-label-font-style;\n  font-weight: $form-label-font-weight;\n  color: $form-label-color;\n}\n\n// For use with horizontal and inline forms, when you need the label (or legend)\n// text to align with the form controls.\n.col-form-label {\n  padding-top: add($input-padding-y, $input-border-width);\n  padding-bottom: add($input-padding-y, $input-border-width);\n  margin-bottom: 0; // Override the `<legend>` default\n  @include font-size(inherit); // Override the `<legend>` default\n  font-style: $form-label-font-style;\n  font-weight: $form-label-font-weight;\n  line-height: $input-line-height;\n  color: $form-label-color;\n}\n\n.col-form-label-lg {\n  padding-top: add($input-padding-y-lg, $input-border-width);\n  padding-bottom: add($input-padding-y-lg, $input-border-width);\n  @include font-size($input-font-size-lg);\n}\n\n.col-form-label-sm {\n  padding-top: add($input-padding-y-sm, $input-border-width);\n  padding-bottom: add($input-padding-y-sm, $input-border-width);\n  @include font-size($input-font-size-sm);\n}\n","//\n// Form text\n//\n\n.form-text {\n  margin-top: $form-text-margin-top;\n  @include font-size($form-text-font-size);\n  font-style: $form-text-font-style;\n  font-weight: $form-text-font-weight;\n  color: $form-text-color;\n}\n","//\n// General form controls (plus a few specific high-level interventions)\n//\n\n.form-control {\n  display: block;\n  width: 100%;\n  padding: $input-padding-y $input-padding-x;\n  font-family: $input-font-family;\n  @include font-size($input-font-size);\n  font-weight: $input-font-weight;\n  line-height: $input-line-height;\n  color: $input-color;\n  background-color: $input-bg;\n  background-clip: padding-box;\n  border: $input-border-width solid $input-border-color;\n  appearance: none; // Fix appearance for date inputs in Safari\n\n  // Note: This has no effect on <select>s in some browsers, due to the limited stylability of `<select>`s in CSS.\n  @include border-radius($input-border-radius, 0);\n\n  @include box-shadow($input-box-shadow);\n  @include transition($input-transition);\n\n  &[type=\"file\"] {\n    overflow: hidden; // prevent pseudo element button overlap\n\n    &:not(:disabled):not([readonly]) {\n      cursor: pointer;\n    }\n  }\n\n  // Customize the `:focus` state to imitate native WebKit styles.\n  &:focus {\n    color: $input-focus-color;\n    background-color: $input-focus-bg;\n    border-color: $input-focus-border-color;\n    outline: 0;\n    @if $enable-shadows {\n      @include box-shadow($input-box-shadow, $input-focus-box-shadow);\n    } @else {\n      // Avoid using mixin so we can pass custom focus shadow properly\n      box-shadow: $input-focus-box-shadow;\n    }\n  }\n\n  // Add some height to date inputs on iOS\n  // https://github.com/twbs/bootstrap/issues/23307\n  // TODO: we can remove this workaround once https://bugs.webkit.org/show_bug.cgi?id=198959 is resolved\n  &::-webkit-date-and-time-value {\n    // Multiply line-height by 1em if it has no unit\n    height: if(unit($input-line-height) == \"\", $input-line-height * 1em, $input-line-height);\n  }\n\n  // Placeholder\n  &::placeholder {\n    color: $input-placeholder-color;\n    // Override Firefox's unusual default opacity; see https://github.com/twbs/bootstrap/pull/11526.\n    opacity: 1;\n  }\n\n  // Disabled and read-only inputs\n  //\n  // HTML5 says that controls under a fieldset > legend:first-child won't be\n  // disabled if the fieldset is disabled. Due to implementation difficulty, we\n  // don't honor that edge case; we style them as disabled anyway.\n  &:disabled,\n  &[readonly] {\n    background-color: $input-disabled-bg;\n    border-color: $input-disabled-border-color;\n    // iOS fix for unreadable disabled content; see https://github.com/twbs/bootstrap/issues/11655.\n    opacity: 1;\n  }\n\n  // File input buttons theming\n  &::file-selector-button {\n    padding: $input-padding-y $input-padding-x;\n    margin: (-$input-padding-y) (-$input-padding-x);\n    margin-inline-end: $input-padding-x;\n    color: $form-file-button-color;\n    @include gradient-bg($form-file-button-bg);\n    pointer-events: none;\n    border-color: inherit;\n    border-style: solid;\n    border-width: 0;\n    border-inline-end-width: $input-border-width;\n    border-radius: 0; // stylelint-disable-line property-disallowed-list\n    @include transition($btn-transition);\n  }\n\n  &:hover:not(:disabled):not([readonly])::file-selector-button {\n    background-color: $form-file-button-hover-bg;\n  }\n\n  &::-webkit-file-upload-button {\n    padding: $input-padding-y $input-padding-x;\n    margin: (-$input-padding-y) (-$input-padding-x);\n    margin-inline-end: $input-padding-x;\n    color: $form-file-button-color;\n    @include gradient-bg($form-file-button-bg);\n    pointer-events: none;\n    border-color: inherit;\n    border-style: solid;\n    border-width: 0;\n    border-inline-end-width: $input-border-width;\n    border-radius: 0; // stylelint-disable-line property-disallowed-list\n    @include transition($btn-transition);\n  }\n\n  &:hover:not(:disabled):not([readonly])::-webkit-file-upload-button {\n    background-color: $form-file-button-hover-bg;\n  }\n}\n\n// Readonly controls as plain text\n//\n// Apply class to a readonly input to make it appear like regular plain\n// text (without any border, background color, focus indicator)\n\n.form-control-plaintext {\n  display: block;\n  width: 100%;\n  padding: $input-padding-y 0;\n  margin-bottom: 0; // match inputs if this class comes on inputs with default margins\n  line-height: $input-line-height;\n  color: $input-plaintext-color;\n  background-color: transparent;\n  border: solid transparent;\n  border-width: $input-border-width 0;\n\n  &.form-control-sm,\n  &.form-control-lg {\n    padding-right: 0;\n    padding-left: 0;\n  }\n}\n\n// Form control sizing\n//\n// Build on `.form-control` with modifier classes to decrease or increase the\n// height and font-size of form controls.\n//\n// Repeated in `_input_group.scss` to avoid Sass extend issues.\n\n.form-control-sm {\n  min-height: $input-height-sm;\n  padding: $input-padding-y-sm $input-padding-x-sm;\n  @include font-size($input-font-size-sm);\n  @include border-radius($input-border-radius-sm);\n\n  &::file-selector-button {\n    padding: $input-padding-y-sm $input-padding-x-sm;\n    margin: (-$input-padding-y-sm) (-$input-padding-x-sm);\n    margin-inline-end: $input-padding-x-sm;\n  }\n\n  &::-webkit-file-upload-button {\n    padding: $input-padding-y-sm $input-padding-x-sm;\n    margin: (-$input-padding-y-sm) (-$input-padding-x-sm);\n    margin-inline-end: $input-padding-x-sm;\n  }\n}\n\n.form-control-lg {\n  min-height: $input-height-lg;\n  padding: $input-padding-y-lg $input-padding-x-lg;\n  @include font-size($input-font-size-lg);\n  @include border-radius($input-border-radius-lg);\n\n  &::file-selector-button {\n    padding: $input-padding-y-lg $input-padding-x-lg;\n    margin: (-$input-padding-y-lg) (-$input-padding-x-lg);\n    margin-inline-end: $input-padding-x-lg;\n  }\n\n  &::-webkit-file-upload-button {\n    padding: $input-padding-y-lg $input-padding-x-lg;\n    margin: (-$input-padding-y-lg) (-$input-padding-x-lg);\n    margin-inline-end: $input-padding-x-lg;\n  }\n}\n\n// Make sure textareas don't shrink too much when resized\n// https://github.com/twbs/bootstrap/pull/29124\n// stylelint-disable selector-no-qualifying-type\ntextarea {\n  &.form-control {\n    min-height: $input-height;\n  }\n\n  &.form-control-sm {\n    min-height: $input-height-sm;\n  }\n\n  &.form-control-lg {\n    min-height: $input-height-lg;\n  }\n}\n// stylelint-enable selector-no-qualifying-type\n\n.form-control-color {\n  width: $form-color-width;\n  height: auto; // Override fixed browser height\n  padding: $input-padding-y;\n\n  &:not(:disabled):not([readonly]) {\n    cursor: pointer;\n  }\n\n  &::-moz-color-swatch {\n    height: if(unit($input-line-height) == \"\", $input-line-height * 1em, $input-line-height);\n    @include border-radius($input-border-radius);\n  }\n\n  &::-webkit-color-swatch {\n    height: if(unit($input-line-height) == \"\", $input-line-height * 1em, $input-line-height);\n    @include border-radius($input-border-radius);\n  }\n}\n","// stylelint-disable property-disallowed-list\n@mixin transition($transition...) {\n  @if length($transition) == 0 {\n    $transition: $transition-base;\n  }\n\n  @if length($transition) > 1 {\n    @each $value in $transition {\n      @if $value == null or $value == none {\n        @warn \"The keyword 'none' or 'null' must be used as a single argument.\";\n      }\n    }\n  }\n\n  @if $enable-transitions {\n    @if nth($transition, 1) != null {\n      transition: $transition;\n    }\n\n    @if $enable-reduced-motion and nth($transition, 1) != null and nth($transition, 1) != none {\n      @media (prefers-reduced-motion: reduce) {\n        transition: none;\n      }\n    }\n  }\n}\n","// Gradients\n\n// scss-docs-start gradient-bg-mixin\n@mixin gradient-bg($color: null) {\n  background-color: $color;\n\n  @if $enable-gradients {\n    background-image: var(--#{$variable-prefix}gradient);\n  }\n}\n// scss-docs-end gradient-bg-mixin\n\n// scss-docs-start gradient-mixins\n// Horizontal gradient, from left to right\n//\n// Creates two color stops, start and end, by specifying a color and position for each color stop.\n@mixin gradient-x($start-color: $gray-700, $end-color: $gray-800, $start-percent: 0%, $end-percent: 100%) {\n  background-image: linear-gradient(to right, $start-color $start-percent, $end-color $end-percent);\n}\n\n// Vertical gradient, from top to bottom\n//\n// Creates two color stops, start and end, by specifying a color and position for each color stop.\n@mixin gradient-y($start-color: $gray-700, $end-color: $gray-800, $start-percent: null, $end-percent: null) {\n  background-image: linear-gradient(to bottom, $start-color $start-percent, $end-color $end-percent);\n}\n\n@mixin gradient-directional($start-color: $gray-700, $end-color: $gray-800, $deg: 45deg) {\n  background-image: linear-gradient($deg, $start-color, $end-color);\n}\n\n@mixin gradient-x-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {\n  background-image: linear-gradient(to right, $start-color, $mid-color $color-stop, $end-color);\n}\n\n@mixin gradient-y-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {\n  background-image: linear-gradient($start-color, $mid-color $color-stop, $end-color);\n}\n\n@mixin gradient-radial($inner-color: $gray-700, $outer-color: $gray-800) {\n  background-image: radial-gradient(circle, $inner-color, $outer-color);\n}\n\n@mixin gradient-striped($color: rgba($white, .15), $angle: 45deg) {\n  background-image: linear-gradient($angle, $color 25%, transparent 25%, transparent 50%, $color 50%, $color 75%, transparent 75%, transparent);\n}\n// scss-docs-end gradient-mixins\n","// Select\n//\n// Replaces the browser default select with a custom one, mostly pulled from\n// https://primer.github.io/.\n\n.form-select {\n  display: block;\n  width: 100%;\n  padding: $form-select-padding-y $form-select-indicator-padding $form-select-padding-y $form-select-padding-x;\n  // stylelint-disable-next-line property-no-vendor-prefix\n  -moz-padding-start: subtract($form-select-padding-x, 3px); // See https://github.com/twbs/bootstrap/issues/32636\n  font-family: $form-select-font-family;\n  @include font-size($form-select-font-size);\n  font-weight: $form-select-font-weight;\n  line-height: $form-select-line-height;\n  color: $form-select-color;\n  background-color: $form-select-bg;\n  background-image: escape-svg($form-select-indicator);\n  background-repeat: no-repeat;\n  background-position: $form-select-bg-position;\n  background-size: $form-select-bg-size;\n  border: $form-select-border-width solid $form-select-border-color;\n  @include border-radius($form-select-border-radius, 0);\n  @include box-shadow($form-select-box-shadow);\n  @include transition($form-select-transition);\n  appearance: none;\n\n  &:focus {\n    border-color: $form-select-focus-border-color;\n    outline: 0;\n    @if $enable-shadows {\n      @include box-shadow($form-select-box-shadow, $form-select-focus-box-shadow);\n    } @else {\n      // Avoid using mixin so we can pass custom focus shadow properly\n      box-shadow: $form-select-focus-box-shadow;\n    }\n  }\n\n  &[multiple],\n  &[size]:not([size=\"1\"]) {\n    padding-right: $form-select-padding-x;\n    background-image: none;\n  }\n\n  &:disabled {\n    color: $form-select-disabled-color;\n    background-color: $form-select-disabled-bg;\n    border-color: $form-select-disabled-border-color;\n  }\n\n  // Remove outline from select box in FF\n  &:-moz-focusring {\n    color: transparent;\n    text-shadow: 0 0 0 $form-select-color;\n  }\n}\n\n.form-select-sm {\n  padding-top: $form-select-padding-y-sm;\n  padding-bottom: $form-select-padding-y-sm;\n  padding-left: $form-select-padding-x-sm;\n  @include font-size($form-select-font-size-sm);\n}\n\n.form-select-lg {\n  padding-top: $form-select-padding-y-lg;\n  padding-bottom: $form-select-padding-y-lg;\n  padding-left: $form-select-padding-x-lg;\n  @include font-size($form-select-font-size-lg);\n}\n","//\n// Check/radio\n//\n\n.form-check {\n  display: block;\n  min-height: $form-check-min-height;\n  padding-left: $form-check-padding-start;\n  margin-bottom: $form-check-margin-bottom;\n\n  .form-check-input {\n    float: left;\n    margin-left: $form-check-padding-start * -1;\n  }\n}\n\n.form-check-input {\n  width: $form-check-input-width;\n  height: $form-check-input-width;\n  margin-top: ($line-height-base - $form-check-input-width) * .5; // line-height minus check height\n  vertical-align: top;\n  background-color: $form-check-input-bg;\n  background-repeat: no-repeat;\n  background-position: center;\n  background-size: contain;\n  border: $form-check-input-border;\n  appearance: none;\n  color-adjust: exact; // Keep themed appearance for print\n  @include transition($form-check-transition);\n\n  &[type=\"checkbox\"] {\n    @include border-radius($form-check-input-border-radius);\n  }\n\n  &[type=\"radio\"] {\n    // stylelint-disable-next-line property-disallowed-list\n    border-radius: $form-check-radio-border-radius;\n  }\n\n  &:active {\n    filter: $form-check-input-active-filter;\n  }\n\n  &:focus {\n    border-color: $form-check-input-focus-border;\n    outline: 0;\n    box-shadow: $form-check-input-focus-box-shadow;\n  }\n\n  &:checked {\n    background-color: $form-check-input-checked-bg-color;\n    border-color: $form-check-input-checked-border-color;\n\n    &[type=\"checkbox\"] {\n      @if $enable-gradients {\n        background-image: escape-svg($form-check-input-checked-bg-image), var(--#{$variable-prefix}gradient);\n      } @else {\n        background-image: escape-svg($form-check-input-checked-bg-image);\n      }\n    }\n\n    &[type=\"radio\"] {\n      @if $enable-gradients {\n        background-image: escape-svg($form-check-radio-checked-bg-image), var(--#{$variable-prefix}gradient);\n      } @else {\n        background-image: escape-svg($form-check-radio-checked-bg-image);\n      }\n    }\n  }\n\n  &[type=\"checkbox\"]:indeterminate {\n    background-color: $form-check-input-indeterminate-bg-color;\n    border-color: $form-check-input-indeterminate-border-color;\n\n    @if $enable-gradients {\n      background-image: escape-svg($form-check-input-indeterminate-bg-image), var(--#{$variable-prefix}gradient);\n    } @else {\n      background-image: escape-svg($form-check-input-indeterminate-bg-image);\n    }\n  }\n\n  &:disabled {\n    pointer-events: none;\n    filter: none;\n    opacity: $form-check-input-disabled-opacity;\n  }\n\n  // Use disabled attribute in addition of :disabled pseudo-class\n  // See: https://github.com/twbs/bootstrap/issues/28247\n  &[disabled],\n  &:disabled {\n    ~ .form-check-label {\n      opacity: $form-check-label-disabled-opacity;\n    }\n  }\n}\n\n.form-check-label {\n  color: $form-check-label-color;\n  cursor: $form-check-label-cursor;\n}\n\n//\n// Switch\n//\n\n.form-switch {\n  padding-left: $form-switch-padding-start;\n\n  .form-check-input {\n    width: $form-switch-width;\n    margin-left: $form-switch-padding-start * -1;\n    background-image: escape-svg($form-switch-bg-image);\n    background-position: left center;\n    @include border-radius($form-switch-border-radius);\n    @include transition($form-switch-transition);\n\n    &:focus {\n      background-image: escape-svg($form-switch-focus-bg-image);\n    }\n\n    &:checked {\n      background-position: $form-switch-checked-bg-position;\n\n      @if $enable-gradients {\n        background-image: escape-svg($form-switch-checked-bg-image), var(--#{$variable-prefix}gradient);\n      } @else {\n        background-image: escape-svg($form-switch-checked-bg-image);\n      }\n    }\n  }\n}\n\n.form-check-inline {\n  display: inline-block;\n  margin-right: $form-check-inline-margin-end;\n}\n\n.btn-check {\n  position: absolute;\n  clip: rect(0, 0, 0, 0);\n  pointer-events: none;\n\n  &[disabled],\n  &:disabled {\n    + .btn {\n      pointer-events: none;\n      filter: none;\n      opacity: $form-check-btn-check-disabled-opacity;\n    }\n  }\n}\n","// Range\n//\n// Style range inputs the same across browsers. Vendor-specific rules for pseudo\n// elements cannot be mixed. As such, there are no shared styles for focus or\n// active states on prefixed selectors.\n\n.form-range {\n  width: 100%;\n  height: add($form-range-thumb-height, $form-range-thumb-focus-box-shadow-width * 2);\n  padding: 0; // Need to reset padding\n  background-color: transparent;\n  appearance: none;\n\n  &:focus {\n    outline: 0;\n\n    // Pseudo-elements must be split across multiple rulesets to have an effect.\n    // No box-shadow() mixin for focus accessibility.\n    &::-webkit-slider-thumb { box-shadow: $form-range-thumb-focus-box-shadow; }\n    &::-moz-range-thumb     { box-shadow: $form-range-thumb-focus-box-shadow; }\n  }\n\n  &::-moz-focus-outer {\n    border: 0;\n  }\n\n  &::-webkit-slider-thumb {\n    width: $form-range-thumb-width;\n    height: $form-range-thumb-height;\n    margin-top: ($form-range-track-height - $form-range-thumb-height) * .5; // Webkit specific\n    @include gradient-bg($form-range-thumb-bg);\n    border: $form-range-thumb-border;\n    @include border-radius($form-range-thumb-border-radius);\n    @include box-shadow($form-range-thumb-box-shadow);\n    @include transition($form-range-thumb-transition);\n    appearance: none;\n\n    &:active {\n      @include gradient-bg($form-range-thumb-active-bg);\n    }\n  }\n\n  &::-webkit-slider-runnable-track {\n    width: $form-range-track-width;\n    height: $form-range-track-height;\n    color: transparent; // Why?\n    cursor: $form-range-track-cursor;\n    background-color: $form-range-track-bg;\n    border-color: transparent;\n    @include border-radius($form-range-track-border-radius);\n    @include box-shadow($form-range-track-box-shadow);\n  }\n\n  &::-moz-range-thumb {\n    width: $form-range-thumb-width;\n    height: $form-range-thumb-height;\n    @include gradient-bg($form-range-thumb-bg);\n    border: $form-range-thumb-border;\n    @include border-radius($form-range-thumb-border-radius);\n    @include box-shadow($form-range-thumb-box-shadow);\n    @include transition($form-range-thumb-transition);\n    appearance: none;\n\n    &:active {\n      @include gradient-bg($form-range-thumb-active-bg);\n    }\n  }\n\n  &::-moz-range-track {\n    width: $form-range-track-width;\n    height: $form-range-track-height;\n    color: transparent;\n    cursor: $form-range-track-cursor;\n    background-color: $form-range-track-bg;\n    border-color: transparent; // Firefox specific?\n    @include border-radius($form-range-track-border-radius);\n    @include box-shadow($form-range-track-box-shadow);\n  }\n\n  &:disabled {\n    pointer-events: none;\n\n    &::-webkit-slider-thumb {\n      background-color: $form-range-thumb-disabled-bg;\n    }\n\n    &::-moz-range-thumb {\n      background-color: $form-range-thumb-disabled-bg;\n    }\n  }\n}\n",".form-floating {\n  position: relative;\n\n  > .form-control,\n  > .form-select {\n    height: $form-floating-height;\n    line-height: $form-floating-line-height;\n  }\n\n  > label {\n    position: absolute;\n    top: 0;\n    left: 0;\n    height: 100%; // allow textareas\n    padding: $form-floating-padding-y $form-floating-padding-x;\n    pointer-events: none;\n    border: $input-border-width solid transparent; // Required for aligning label's text with the input as it affects inner box model\n    transform-origin: 0 0;\n    @include transition($form-floating-transition);\n  }\n\n  // stylelint-disable no-duplicate-selectors\n  > .form-control {\n    padding: $form-floating-padding-y $form-floating-padding-x;\n\n    &::placeholder {\n      color: transparent;\n    }\n\n    &:focus,\n    &:not(:placeholder-shown) {\n      padding-top: $form-floating-input-padding-t;\n      padding-bottom: $form-floating-input-padding-b;\n    }\n    // Duplicated because `:-webkit-autofill` invalidates other selectors when grouped\n    &:-webkit-autofill {\n      padding-top: $form-floating-input-padding-t;\n      padding-bottom: $form-floating-input-padding-b;\n    }\n  }\n\n  > .form-select {\n    padding-top: $form-floating-input-padding-t;\n    padding-bottom: $form-floating-input-padding-b;\n  }\n\n  > .form-control:focus,\n  > .form-control:not(:placeholder-shown),\n  > .form-select {\n    ~ label {\n      opacity: $form-floating-label-opacity;\n      transform: $form-floating-label-transform;\n    }\n  }\n  // Duplicated because `:-webkit-autofill` invalidates other selectors when grouped\n  > .form-control:-webkit-autofill {\n    ~ label {\n      opacity: $form-floating-label-opacity;\n      transform: $form-floating-label-transform;\n    }\n  }\n  // stylelint-enable no-duplicate-selectors\n}\n","//\n// Base styles\n//\n\n.input-group {\n  position: relative;\n  display: flex;\n  flex-wrap: wrap; // For form validation feedback\n  align-items: stretch;\n  width: 100%;\n\n  > .form-control,\n  > .form-select {\n    position: relative; // For focus state's z-index\n    flex: 1 1 auto;\n    width: 1%;\n    min-width: 0; // https://stackoverflow.com/questions/36247140/why-dont-flex-items-shrink-past-content-size\n  }\n\n  // Bring the \"active\" form control to the top of surrounding elements\n  > .form-control:focus,\n  > .form-select:focus {\n    z-index: 3;\n  }\n\n  // Ensure buttons are always above inputs for more visually pleasing borders.\n  // This isn't needed for `.input-group-text` since it shares the same border-color\n  // as our inputs.\n  .btn {\n    position: relative;\n    z-index: 2;\n\n    &:focus {\n      z-index: 3;\n    }\n  }\n}\n\n\n// Textual addons\n//\n// Serves as a catch-all element for any text or radio/checkbox input you wish\n// to prepend or append to an input.\n\n.input-group-text {\n  display: flex;\n  align-items: center;\n  padding: $input-group-addon-padding-y $input-group-addon-padding-x;\n  @include font-size($input-font-size); // Match inputs\n  font-weight: $input-group-addon-font-weight;\n  line-height: $input-line-height;\n  color: $input-group-addon-color;\n  text-align: center;\n  white-space: nowrap;\n  background-color: $input-group-addon-bg;\n  border: $input-border-width solid $input-group-addon-border-color;\n  @include border-radius($input-border-radius);\n}\n\n\n// Sizing\n//\n// Remix the default form control sizing classes into new ones for easier\n// manipulation.\n\n.input-group-lg > .form-control,\n.input-group-lg > .form-select,\n.input-group-lg > .input-group-text,\n.input-group-lg > .btn {\n  padding: $input-padding-y-lg $input-padding-x-lg;\n  @include font-size($input-font-size-lg);\n  @include border-radius($input-border-radius-lg);\n}\n\n.input-group-sm > .form-control,\n.input-group-sm > .form-select,\n.input-group-sm > .input-group-text,\n.input-group-sm > .btn {\n  padding: $input-padding-y-sm $input-padding-x-sm;\n  @include font-size($input-font-size-sm);\n  @include border-radius($input-border-radius-sm);\n}\n\n.input-group-lg > .form-select,\n.input-group-sm > .form-select {\n  padding-right: $form-select-padding-x + $form-select-indicator-padding;\n}\n\n\n// Rounded corners\n//\n// These rulesets must come after the sizing ones to properly override sm and lg\n// border-radius values when extending. They're more specific than we'd like\n// with the `.input-group >` part, but without it, we cannot override the sizing.\n\n// stylelint-disable-next-line no-duplicate-selectors\n.input-group {\n  &:not(.has-validation) {\n    > :not(:last-child):not(.dropdown-toggle):not(.dropdown-menu),\n    > .dropdown-toggle:nth-last-child(n + 3) {\n      @include border-end-radius(0);\n    }\n  }\n\n  &.has-validation {\n    > :nth-last-child(n + 3):not(.dropdown-toggle):not(.dropdown-menu),\n    > .dropdown-toggle:nth-last-child(n + 4) {\n      @include border-end-radius(0);\n    }\n  }\n\n  $validation-messages: \"\";\n  @each $state in map-keys($form-validation-states) {\n    $validation-messages: $validation-messages + \":not(.\" + unquote($state) + \"-tooltip)\" + \":not(.\" + unquote($state) + \"-feedback)\";\n  }\n\n  > :not(:first-child):not(.dropdown-menu)#{$validation-messages} {\n    margin-left: -$input-border-width;\n    @include border-start-radius(0);\n  }\n}\n","// This mixin uses an `if()` technique to be compatible with Dart Sass\n// See https://github.com/sass/sass/issues/1873#issuecomment-152293725 for more details\n\n// scss-docs-start form-validation-mixins\n@mixin form-validation-state-selector($state) {\n  @if ($state == \"valid\" or $state == \"invalid\") {\n    .was-validated #{if(&, \"&\", \"\")}:#{$state},\n    #{if(&, \"&\", \"\")}.is-#{$state} {\n      @content;\n    }\n  } @else {\n    #{if(&, \"&\", \"\")}.is-#{$state} {\n      @content;\n    }\n  }\n}\n\n@mixin form-validation-state(\n  $state,\n  $color,\n  $icon,\n  $tooltip-color: color-contrast($color),\n  $tooltip-bg-color: rgba($color, $form-feedback-tooltip-opacity),\n  $focus-box-shadow: 0 0 $input-btn-focus-blur $input-focus-width rgba($color, $input-btn-focus-color-opacity)\n) {\n  .#{$state}-feedback {\n    display: none;\n    width: 100%;\n    margin-top: $form-feedback-margin-top;\n    @include font-size($form-feedback-font-size);\n    font-style: $form-feedback-font-style;\n    color: $color;\n  }\n\n  .#{$state}-tooltip {\n    position: absolute;\n    top: 100%;\n    z-index: 5;\n    display: none;\n    max-width: 100%; // Contain to parent when possible\n    padding: $form-feedback-tooltip-padding-y $form-feedback-tooltip-padding-x;\n    margin-top: .1rem;\n    @include font-size($form-feedback-tooltip-font-size);\n    line-height: $form-feedback-tooltip-line-height;\n    color: $tooltip-color;\n    background-color: $tooltip-bg-color;\n    @include border-radius($form-feedback-tooltip-border-radius);\n  }\n\n  @include form-validation-state-selector($state) {\n    ~ .#{$state}-feedback,\n    ~ .#{$state}-tooltip {\n      display: block;\n    }\n  }\n\n  .form-control {\n    @include form-validation-state-selector($state) {\n      border-color: $color;\n\n      @if $enable-validation-icons {\n        padding-right: $input-height-inner;\n        background-image: escape-svg($icon);\n        background-repeat: no-repeat;\n        background-position: right $input-height-inner-quarter center;\n        background-size: $input-height-inner-half $input-height-inner-half;\n      }\n\n      &:focus {\n        border-color: $color;\n        box-shadow: $focus-box-shadow;\n      }\n    }\n  }\n\n  // stylelint-disable-next-line selector-no-qualifying-type\n  textarea.form-control {\n    @include form-validation-state-selector($state) {\n      @if $enable-validation-icons {\n        padding-right: $input-height-inner;\n        background-position: top $input-height-inner-quarter right $input-height-inner-quarter;\n      }\n    }\n  }\n\n  .form-select {\n    @include form-validation-state-selector($state) {\n      border-color: $color;\n\n      @if $enable-validation-icons {\n        &:not([multiple]):not([size]),\n        &:not([multiple])[size=\"1\"] {\n          padding-right: $form-select-feedback-icon-padding-end;\n          background-image: escape-svg($form-select-indicator), escape-svg($icon);\n          background-position: $form-select-bg-position, $form-select-feedback-icon-position;\n          background-size: $form-select-bg-size, $form-select-feedback-icon-size;\n        }\n      }\n\n      &:focus {\n        border-color: $color;\n        box-shadow: $focus-box-shadow;\n      }\n    }\n  }\n\n  .form-check-input {\n    @include form-validation-state-selector($state) {\n      border-color: $color;\n\n      &:checked {\n        background-color: $color;\n      }\n\n      &:focus {\n        box-shadow: $focus-box-shadow;\n      }\n\n      ~ .form-check-label {\n        color: $color;\n      }\n    }\n  }\n  .form-check-inline .form-check-input {\n    ~ .#{$state}-feedback {\n      margin-left: .5em;\n    }\n  }\n\n  .input-group .form-control,\n  .input-group .form-select {\n    @include form-validation-state-selector($state) {\n      @if $state == \"valid\" {\n        z-index: 1;\n      } @else if $state == \"invalid\" {\n        z-index: 2;\n      }\n      &:focus {\n        z-index: 3;\n      }\n    }\n  }\n}\n// scss-docs-end form-validation-mixins\n","//\n// Base styles\n//\n\n.btn {\n  display: inline-block;\n  font-family: $btn-font-family;\n  font-weight: $btn-font-weight;\n  line-height: $btn-line-height;\n  color: $body-color;\n  text-align: center;\n  text-decoration: if($link-decoration == none, null, none);\n  white-space: $btn-white-space;\n  vertical-align: middle;\n  cursor: if($enable-button-pointers, pointer, null);\n  user-select: none;\n  background-color: transparent;\n  border: $btn-border-width solid transparent;\n  @include button-size($btn-padding-y, $btn-padding-x, $btn-font-size, $btn-border-radius);\n  @include transition($btn-transition);\n\n  &:hover {\n    color: $body-color;\n    text-decoration: if($link-hover-decoration == underline, none, null);\n  }\n\n  .btn-check:focus + &,\n  &:focus {\n    outline: 0;\n    box-shadow: $btn-focus-box-shadow;\n  }\n\n  .btn-check:checked + &,\n  .btn-check:active + &,\n  &:active,\n  &.active {\n    @include box-shadow($btn-active-box-shadow);\n\n    &:focus {\n      @include box-shadow($btn-focus-box-shadow, $btn-active-box-shadow);\n    }\n  }\n\n  &:disabled,\n  &.disabled,\n  fieldset:disabled & {\n    pointer-events: none;\n    opacity: $btn-disabled-opacity;\n    @include box-shadow(none);\n  }\n}\n\n\n//\n// Alternate buttons\n//\n\n// scss-docs-start btn-variant-loops\n@each $color, $value in $theme-colors {\n  .btn-#{$color} {\n    @include button-variant($value, $value);\n  }\n}\n\n@each $color, $value in $theme-colors {\n  .btn-outline-#{$color} {\n    @include button-outline-variant($value);\n  }\n}\n// scss-docs-end btn-variant-loops\n\n\n//\n// Link buttons\n//\n\n// Make a button look and behave like a link\n.btn-link {\n  font-weight: $font-weight-normal;\n  color: $btn-link-color;\n  text-decoration: $link-decoration;\n\n  &:hover {\n    color: $btn-link-hover-color;\n    text-decoration: $link-hover-decoration;\n  }\n\n  &:focus {\n    text-decoration: $link-hover-decoration;\n  }\n\n  &:disabled,\n  &.disabled {\n    color: $btn-link-disabled-color;\n  }\n\n  // No need for an active state here\n}\n\n\n//\n// Button Sizes\n//\n\n.btn-lg {\n  @include button-size($btn-padding-y-lg, $btn-padding-x-lg, $btn-font-size-lg, $btn-border-radius-lg);\n}\n\n.btn-sm {\n  @include button-size($btn-padding-y-sm, $btn-padding-x-sm, $btn-font-size-sm, $btn-border-radius-sm);\n}\n","// Button variants\n//\n// Easily pump out default styles, as well as :hover, :focus, :active,\n// and disabled options for all buttons\n\n// scss-docs-start btn-variant-mixin\n@mixin button-variant(\n  $background,\n  $border,\n  $color: color-contrast($background),\n  $hover-background: if($color == $color-contrast-light, shade-color($background, $btn-hover-bg-shade-amount), tint-color($background, $btn-hover-bg-tint-amount)),\n  $hover-border: if($color == $color-contrast-light, shade-color($border, $btn-hover-border-shade-amount), tint-color($border, $btn-hover-border-tint-amount)),\n  $hover-color: color-contrast($hover-background),\n  $active-background: if($color == $color-contrast-light, shade-color($background, $btn-active-bg-shade-amount), tint-color($background, $btn-active-bg-tint-amount)),\n  $active-border: if($color == $color-contrast-light, shade-color($border, $btn-active-border-shade-amount), tint-color($border, $btn-active-border-tint-amount)),\n  $active-color: color-contrast($active-background),\n  $disabled-background: $background,\n  $disabled-border: $border,\n  $disabled-color: color-contrast($disabled-background)\n) {\n  color: $color;\n  @include gradient-bg($background);\n  border-color: $border;\n  @include box-shadow($btn-box-shadow);\n\n  &:hover {\n    color: $hover-color;\n    @include gradient-bg($hover-background);\n    border-color: $hover-border;\n  }\n\n  .btn-check:focus + &,\n  &:focus {\n    color: $hover-color;\n    @include gradient-bg($hover-background);\n    border-color: $hover-border;\n    @if $enable-shadows {\n      @include box-shadow($btn-box-shadow, 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5));\n    } @else {\n      // Avoid using mixin so we can pass custom focus shadow properly\n      box-shadow: 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5);\n    }\n  }\n\n  .btn-check:checked + &,\n  .btn-check:active + &,\n  &:active,\n  &.active,\n  .show > &.dropdown-toggle {\n    color: $active-color;\n    background-color: $active-background;\n    // Remove CSS gradients if they're enabled\n    background-image: if($enable-gradients, none, null);\n    border-color: $active-border;\n\n    &:focus {\n      @if $enable-shadows {\n        @include box-shadow($btn-active-box-shadow, 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5));\n      } @else {\n        // Avoid using mixin so we can pass custom focus shadow properly\n        box-shadow: 0 0 0 $btn-focus-width rgba(mix($color, $border, 15%), .5);\n      }\n    }\n  }\n\n  &:disabled,\n  &.disabled {\n    color: $disabled-color;\n    background-color: $disabled-background;\n    // Remove CSS gradients if they're enabled\n    background-image: if($enable-gradients, none, null);\n    border-color: $disabled-border;\n  }\n}\n// scss-docs-end btn-variant-mixin\n\n// scss-docs-start btn-outline-variant-mixin\n@mixin button-outline-variant(\n  $color,\n  $color-hover: color-contrast($color),\n  $active-background: $color,\n  $active-border: $color,\n  $active-color: color-contrast($active-background)\n) {\n  color: $color;\n  border-color: $color;\n\n  &:hover {\n    color: $color-hover;\n    background-color: $active-background;\n    border-color: $active-border;\n  }\n\n  .btn-check:focus + &,\n  &:focus {\n    box-shadow: 0 0 0 $btn-focus-width rgba($color, .5);\n  }\n\n  .btn-check:checked + &,\n  .btn-check:active + &,\n  &:active,\n  &.active,\n  &.dropdown-toggle.show {\n    color: $active-color;\n    background-color: $active-background;\n    border-color: $active-border;\n\n    &:focus {\n      @if $enable-shadows {\n        @include box-shadow($btn-active-box-shadow, 0 0 0 $btn-focus-width rgba($color, .5));\n      } @else {\n        // Avoid using mixin so we can pass custom focus shadow properly\n        box-shadow: 0 0 0 $btn-focus-width rgba($color, .5);\n      }\n    }\n  }\n\n  &:disabled,\n  &.disabled {\n    color: $color;\n    background-color: transparent;\n  }\n}\n// scss-docs-end btn-outline-variant-mixin\n\n// scss-docs-start btn-size-mixin\n@mixin button-size($padding-y, $padding-x, $font-size, $border-radius) {\n  padding: $padding-y $padding-x;\n  @include font-size($font-size);\n  // Manually declare to provide an override to the browser default\n  @include border-radius($border-radius, 0);\n}\n// scss-docs-end btn-size-mixin\n",".fade {\n  @include transition($transition-fade);\n\n  &:not(.show) {\n    opacity: 0;\n  }\n}\n\n// scss-docs-start collapse-classes\n.collapse {\n  &:not(.show) {\n    display: none;\n  }\n}\n\n.collapsing {\n  height: 0;\n  overflow: hidden;\n  @include transition($transition-collapse);\n\n  &.collapse-horizontal {\n    width: 0;\n    height: auto;\n    @include transition($transition-collapse-width);\n  }\n}\n// scss-docs-end collapse-classes\n","// The dropdown wrapper (`<div>`)\n.dropup,\n.dropend,\n.dropdown,\n.dropstart {\n  position: relative;\n}\n\n.dropdown-toggle {\n  white-space: nowrap;\n\n  // Generate the caret automatically\n  @include caret();\n}\n\n// The dropdown menu\n.dropdown-menu {\n  position: absolute;\n  z-index: $zindex-dropdown;\n  display: none; // none by default, but block on \"open\" of the menu\n  min-width: $dropdown-min-width;\n  padding: $dropdown-padding-y $dropdown-padding-x;\n  margin: 0; // Override default margin of ul\n  @include font-size($dropdown-font-size);\n  color: $dropdown-color;\n  text-align: left; // Ensures proper alignment if parent has it changed (e.g., modal footer)\n  list-style: none;\n  background-color: $dropdown-bg;\n  background-clip: padding-box;\n  border: $dropdown-border-width solid $dropdown-border-color;\n  @include border-radius($dropdown-border-radius);\n  @include box-shadow($dropdown-box-shadow);\n\n  &[data-bs-popper] {\n    top: 100%;\n    left: 0;\n    margin-top: $dropdown-spacer;\n  }\n}\n\n// scss-docs-start responsive-breakpoints\n// We deliberately hardcode the `bs-` prefix because we check\n// this custom property in JS to determine Popper's positioning\n\n@each $breakpoint in map-keys($grid-breakpoints) {\n  @include media-breakpoint-up($breakpoint) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    .dropdown-menu#{$infix}-start {\n      --bs-position: start;\n\n      &[data-bs-popper] {\n        right: auto;\n        left: 0;\n      }\n    }\n\n    .dropdown-menu#{$infix}-end {\n      --bs-position: end;\n\n      &[data-bs-popper] {\n        right: 0;\n        left: auto;\n      }\n    }\n  }\n}\n// scss-docs-end responsive-breakpoints\n\n// Allow for dropdowns to go bottom up (aka, dropup-menu)\n// Just add .dropup after the standard .dropdown class and you're set.\n.dropup {\n  .dropdown-menu[data-bs-popper] {\n    top: auto;\n    bottom: 100%;\n    margin-top: 0;\n    margin-bottom: $dropdown-spacer;\n  }\n\n  .dropdown-toggle {\n    @include caret(up);\n  }\n}\n\n.dropend {\n  .dropdown-menu[data-bs-popper] {\n    top: 0;\n    right: auto;\n    left: 100%;\n    margin-top: 0;\n    margin-left: $dropdown-spacer;\n  }\n\n  .dropdown-toggle {\n    @include caret(end);\n    &::after {\n      vertical-align: 0;\n    }\n  }\n}\n\n.dropstart {\n  .dropdown-menu[data-bs-popper] {\n    top: 0;\n    right: 100%;\n    left: auto;\n    margin-top: 0;\n    margin-right: $dropdown-spacer;\n  }\n\n  .dropdown-toggle {\n    @include caret(start);\n    &::before {\n      vertical-align: 0;\n    }\n  }\n}\n\n\n// Dividers (basically an `<hr>`) within the dropdown\n.dropdown-divider {\n  height: 0;\n  margin: $dropdown-divider-margin-y 0;\n  overflow: hidden;\n  border-top: 1px solid $dropdown-divider-bg;\n}\n\n// Links, buttons, and more within the dropdown menu\n//\n// `<button>`-specific styles are denoted with `// For <button>s`\n.dropdown-item {\n  display: block;\n  width: 100%; // For `<button>`s\n  padding: $dropdown-item-padding-y $dropdown-item-padding-x;\n  clear: both;\n  font-weight: $font-weight-normal;\n  color: $dropdown-link-color;\n  text-align: inherit; // For `<button>`s\n  text-decoration: if($link-decoration == none, null, none);\n  white-space: nowrap; // prevent links from randomly breaking onto new lines\n  background-color: transparent; // For `<button>`s\n  border: 0; // For `<button>`s\n\n  // Prevent dropdown overflow if there's no padding\n  // See https://github.com/twbs/bootstrap/pull/27703\n  @if $dropdown-padding-y == 0 {\n    &:first-child {\n      @include border-top-radius($dropdown-inner-border-radius);\n    }\n\n    &:last-child {\n      @include border-bottom-radius($dropdown-inner-border-radius);\n    }\n  }\n\n  &:hover,\n  &:focus {\n    color: $dropdown-link-hover-color;\n    text-decoration: if($link-hover-decoration == underline, none, null);\n    @include gradient-bg($dropdown-link-hover-bg);\n  }\n\n  &.active,\n  &:active {\n    color: $dropdown-link-active-color;\n    text-decoration: none;\n    @include gradient-bg($dropdown-link-active-bg);\n  }\n\n  &.disabled,\n  &:disabled {\n    color: $dropdown-link-disabled-color;\n    pointer-events: none;\n    background-color: transparent;\n    // Remove CSS gradients if they're enabled\n    background-image: if($enable-gradients, none, null);\n  }\n}\n\n.dropdown-menu.show {\n  display: block;\n}\n\n// Dropdown section headers\n.dropdown-header {\n  display: block;\n  padding: $dropdown-header-padding;\n  margin-bottom: 0; // for use with heading elements\n  @include font-size($font-size-sm);\n  color: $dropdown-header-color;\n  white-space: nowrap; // as with > li > a\n}\n\n// Dropdown text\n.dropdown-item-text {\n  display: block;\n  padding: $dropdown-item-padding-y $dropdown-item-padding-x;\n  color: $dropdown-link-color;\n}\n\n// Dark dropdowns\n.dropdown-menu-dark {\n  color: $dropdown-dark-color;\n  background-color: $dropdown-dark-bg;\n  border-color: $dropdown-dark-border-color;\n  @include box-shadow($dropdown-dark-box-shadow);\n\n  .dropdown-item {\n    color: $dropdown-dark-link-color;\n\n    &:hover,\n    &:focus {\n      color: $dropdown-dark-link-hover-color;\n      @include gradient-bg($dropdown-dark-link-hover-bg);\n    }\n\n    &.active,\n    &:active {\n      color: $dropdown-dark-link-active-color;\n      @include gradient-bg($dropdown-dark-link-active-bg);\n    }\n\n    &.disabled,\n    &:disabled {\n      color: $dropdown-dark-link-disabled-color;\n    }\n  }\n\n  .dropdown-divider {\n    border-color: $dropdown-dark-divider-bg;\n  }\n\n  .dropdown-item-text {\n    color: $dropdown-dark-link-color;\n  }\n\n  .dropdown-header {\n    color: $dropdown-dark-header-color;\n  }\n}\n","// scss-docs-start caret-mixins\n@mixin caret-down {\n  border-top: $caret-width solid;\n  border-right: $caret-width solid transparent;\n  border-bottom: 0;\n  border-left: $caret-width solid transparent;\n}\n\n@mixin caret-up {\n  border-top: 0;\n  border-right: $caret-width solid transparent;\n  border-bottom: $caret-width solid;\n  border-left: $caret-width solid transparent;\n}\n\n@mixin caret-end {\n  border-top: $caret-width solid transparent;\n  border-right: 0;\n  border-bottom: $caret-width solid transparent;\n  border-left: $caret-width solid;\n}\n\n@mixin caret-start {\n  border-top: $caret-width solid transparent;\n  border-right: $caret-width solid;\n  border-bottom: $caret-width solid transparent;\n}\n\n@mixin caret($direction: down) {\n  @if $enable-caret {\n    &::after {\n      display: inline-block;\n      margin-left: $caret-spacing;\n      vertical-align: $caret-vertical-align;\n      content: \"\";\n      @if $direction == down {\n        @include caret-down();\n      } @else if $direction == up {\n        @include caret-up();\n      } @else if $direction == end {\n        @include caret-end();\n      }\n    }\n\n    @if $direction == start {\n      &::after {\n        display: none;\n      }\n\n      &::before {\n        display: inline-block;\n        margin-right: $caret-spacing;\n        vertical-align: $caret-vertical-align;\n        content: \"\";\n        @include caret-start();\n      }\n    }\n\n    &:empty::after {\n      margin-left: 0;\n    }\n  }\n}\n// scss-docs-end caret-mixins\n","// Make the div behave like a button\n.btn-group,\n.btn-group-vertical {\n  position: relative;\n  display: inline-flex;\n  vertical-align: middle; // match .btn alignment given font-size hack above\n\n  > .btn {\n    position: relative;\n    flex: 1 1 auto;\n  }\n\n  // Bring the hover, focused, and \"active\" buttons to the front to overlay\n  // the borders properly\n  > .btn-check:checked + .btn,\n  > .btn-check:focus + .btn,\n  > .btn:hover,\n  > .btn:focus,\n  > .btn:active,\n  > .btn.active {\n    z-index: 1;\n  }\n}\n\n// Optional: Group multiple button groups together for a toolbar\n.btn-toolbar {\n  display: flex;\n  flex-wrap: wrap;\n  justify-content: flex-start;\n\n  .input-group {\n    width: auto;\n  }\n}\n\n.btn-group {\n  // Prevent double borders when buttons are next to each other\n  > .btn:not(:first-child),\n  > .btn-group:not(:first-child) {\n    margin-left: -$btn-border-width;\n  }\n\n  // Reset rounded corners\n  > .btn:not(:last-child):not(.dropdown-toggle),\n  > .btn-group:not(:last-child) > .btn {\n    @include border-end-radius(0);\n  }\n\n  // The left radius should be 0 if the button is:\n  // - the \"third or more\" child\n  // - the second child and the previous element isn't `.btn-check` (making it the first child visually)\n  // - part of a btn-group which isn't the first child\n  > .btn:nth-child(n + 3),\n  > :not(.btn-check) + .btn,\n  > .btn-group:not(:first-child) > .btn {\n    @include border-start-radius(0);\n  }\n}\n\n// Sizing\n//\n// Remix the default button sizing classes into new ones for easier manipulation.\n\n.btn-group-sm > .btn { @extend .btn-sm; }\n.btn-group-lg > .btn { @extend .btn-lg; }\n\n\n//\n// Split button dropdowns\n//\n\n.dropdown-toggle-split {\n  padding-right: $btn-padding-x * .75;\n  padding-left: $btn-padding-x * .75;\n\n  &::after,\n  .dropup &::after,\n  .dropend &::after {\n    margin-left: 0;\n  }\n\n  .dropstart &::before {\n    margin-right: 0;\n  }\n}\n\n.btn-sm + .dropdown-toggle-split {\n  padding-right: $btn-padding-x-sm * .75;\n  padding-left: $btn-padding-x-sm * .75;\n}\n\n.btn-lg + .dropdown-toggle-split {\n  padding-right: $btn-padding-x-lg * .75;\n  padding-left: $btn-padding-x-lg * .75;\n}\n\n\n// The clickable button for toggling the menu\n// Set the same inset shadow as the :active state\n.btn-group.show .dropdown-toggle {\n  @include box-shadow($btn-active-box-shadow);\n\n  // Show no shadow for `.btn-link` since it has no other button styles.\n  &.btn-link {\n    @include box-shadow(none);\n  }\n}\n\n\n//\n// Vertical button groups\n//\n\n.btn-group-vertical {\n  flex-direction: column;\n  align-items: flex-start;\n  justify-content: center;\n\n  > .btn,\n  > .btn-group {\n    width: 100%;\n  }\n\n  > .btn:not(:first-child),\n  > .btn-group:not(:first-child) {\n    margin-top: -$btn-border-width;\n  }\n\n  // Reset rounded corners\n  > .btn:not(:last-child):not(.dropdown-toggle),\n  > .btn-group:not(:last-child) > .btn {\n    @include border-bottom-radius(0);\n  }\n\n  > .btn ~ .btn,\n  > .btn-group:not(:first-child) > .btn {\n    @include border-top-radius(0);\n  }\n}\n","// Base class\n//\n// Kickstart any navigation component with a set of style resets. Works with\n// `<nav>`s, `<ul>`s or `<ol>`s.\n\n.nav {\n  display: flex;\n  flex-wrap: wrap;\n  padding-left: 0;\n  margin-bottom: 0;\n  list-style: none;\n}\n\n.nav-link {\n  display: block;\n  padding: $nav-link-padding-y $nav-link-padding-x;\n  @include font-size($nav-link-font-size);\n  font-weight: $nav-link-font-weight;\n  color: $nav-link-color;\n  text-decoration: if($link-decoration == none, null, none);\n  @include transition($nav-link-transition);\n\n  &:hover,\n  &:focus {\n    color: $nav-link-hover-color;\n    text-decoration: if($link-hover-decoration == underline, none, null);\n  }\n\n  // Disabled state lightens text\n  &.disabled {\n    color: $nav-link-disabled-color;\n    pointer-events: none;\n    cursor: default;\n  }\n}\n\n//\n// Tabs\n//\n\n.nav-tabs {\n  border-bottom: $nav-tabs-border-width solid $nav-tabs-border-color;\n\n  .nav-link {\n    margin-bottom: -$nav-tabs-border-width;\n    background: none;\n    border: $nav-tabs-border-width solid transparent;\n    @include border-top-radius($nav-tabs-border-radius);\n\n    &:hover,\n    &:focus {\n      border-color: $nav-tabs-link-hover-border-color;\n      // Prevents active .nav-link tab overlapping focus outline of previous/next .nav-link\n      isolation: isolate;\n    }\n\n    &.disabled {\n      color: $nav-link-disabled-color;\n      background-color: transparent;\n      border-color: transparent;\n    }\n  }\n\n  .nav-link.active,\n  .nav-item.show .nav-link {\n    color: $nav-tabs-link-active-color;\n    background-color: $nav-tabs-link-active-bg;\n    border-color: $nav-tabs-link-active-border-color;\n  }\n\n  .dropdown-menu {\n    // Make dropdown border overlap tab border\n    margin-top: -$nav-tabs-border-width;\n    // Remove the top rounded corners here since there is a hard edge above the menu\n    @include border-top-radius(0);\n  }\n}\n\n\n//\n// Pills\n//\n\n.nav-pills {\n  .nav-link {\n    background: none;\n    border: 0;\n    @include border-radius($nav-pills-border-radius);\n  }\n\n  .nav-link.active,\n  .show > .nav-link {\n    color: $nav-pills-link-active-color;\n    @include gradient-bg($nav-pills-link-active-bg);\n  }\n}\n\n\n//\n// Justified variants\n//\n\n.nav-fill {\n  > .nav-link,\n  .nav-item {\n    flex: 1 1 auto;\n    text-align: center;\n  }\n}\n\n.nav-justified {\n  > .nav-link,\n  .nav-item {\n    flex-basis: 0;\n    flex-grow: 1;\n    text-align: center;\n  }\n}\n\n.nav-fill,\n.nav-justified {\n  .nav-item .nav-link {\n    width: 100%; // Make sure button will grow\n  }\n}\n\n\n// Tabbable tabs\n//\n// Hide tabbable panes to start, show them when `.active`\n\n.tab-content {\n  > .tab-pane {\n    display: none;\n  }\n  > .active {\n    display: block;\n  }\n}\n","// Contents\n//\n// Navbar\n// Navbar brand\n// Navbar nav\n// Navbar text\n// Responsive navbar\n// Navbar position\n// Navbar themes\n\n\n// Navbar\n//\n// Provide a static navbar from which we expand to create full-width, fixed, and\n// other navbar variations.\n\n.navbar {\n  position: relative;\n  display: flex;\n  flex-wrap: wrap; // allow us to do the line break for collapsing content\n  align-items: center;\n  justify-content: space-between; // space out brand from logo\n  padding-top: $navbar-padding-y;\n  padding-right: $navbar-padding-x; // default: null\n  padding-bottom: $navbar-padding-y;\n  padding-left: $navbar-padding-x; // default: null\n  @include gradient-bg();\n\n  // Because flex properties aren't inherited, we need to redeclare these first\n  // few properties so that content nested within behave properly.\n  // The `flex-wrap` property is inherited to simplify the expanded navbars\n  %container-flex-properties {\n    display: flex;\n    flex-wrap: inherit;\n    align-items: center;\n    justify-content: space-between;\n  }\n\n  > .container,\n  > .container-fluid {\n    @extend %container-flex-properties;\n  }\n\n  @each $breakpoint, $container-max-width in $container-max-widths {\n    > .container#{breakpoint-infix($breakpoint, $container-max-widths)} {\n      @extend %container-flex-properties;\n    }\n  }\n}\n\n\n// Navbar brand\n//\n// Used for brand, project, or site names.\n\n.navbar-brand {\n  padding-top: $navbar-brand-padding-y;\n  padding-bottom: $navbar-brand-padding-y;\n  margin-right: $navbar-brand-margin-end;\n  @include font-size($navbar-brand-font-size);\n  text-decoration: if($link-decoration == none, null, none);\n  white-space: nowrap;\n\n  &:hover,\n  &:focus {\n    text-decoration: if($link-hover-decoration == underline, none, null);\n  }\n}\n\n\n// Navbar nav\n//\n// Custom navbar navigation (doesn't require `.nav`, but does make use of `.nav-link`).\n\n.navbar-nav {\n  display: flex;\n  flex-direction: column; // cannot use `inherit` to get the `.navbar`s value\n  padding-left: 0;\n  margin-bottom: 0;\n  list-style: none;\n\n  .nav-link {\n    padding-right: 0;\n    padding-left: 0;\n  }\n\n  .dropdown-menu {\n    position: static;\n  }\n}\n\n\n// Navbar text\n//\n//\n\n.navbar-text {\n  padding-top: $nav-link-padding-y;\n  padding-bottom: $nav-link-padding-y;\n}\n\n\n// Responsive navbar\n//\n// Custom styles for responsive collapsing and toggling of navbar contents.\n// Powered by the collapse Bootstrap JavaScript plugin.\n\n// When collapsed, prevent the toggleable navbar contents from appearing in\n// the default flexbox row orientation. Requires the use of `flex-wrap: wrap`\n// on the `.navbar` parent.\n.navbar-collapse {\n  flex-basis: 100%;\n  flex-grow: 1;\n  // For always expanded or extra full navbars, ensure content aligns itself\n  // properly vertically. Can be easily overridden with flex utilities.\n  align-items: center;\n}\n\n// Button for toggling the navbar when in its collapsed state\n.navbar-toggler {\n  padding: $navbar-toggler-padding-y $navbar-toggler-padding-x;\n  @include font-size($navbar-toggler-font-size);\n  line-height: 1;\n  background-color: transparent; // remove default button style\n  border: $border-width solid transparent; // remove default button style\n  @include border-radius($navbar-toggler-border-radius);\n  @include transition($navbar-toggler-transition);\n\n  &:hover {\n    text-decoration: none;\n  }\n\n  &:focus {\n    text-decoration: none;\n    outline: 0;\n    box-shadow: 0 0 0 $navbar-toggler-focus-width;\n  }\n}\n\n// Keep as a separate element so folks can easily override it with another icon\n// or image file as needed.\n.navbar-toggler-icon {\n  display: inline-block;\n  width: 1.5em;\n  height: 1.5em;\n  vertical-align: middle;\n  background-repeat: no-repeat;\n  background-position: center;\n  background-size: 100%;\n}\n\n.navbar-nav-scroll {\n  max-height: var(--#{$variable-prefix}scroll-height, 75vh);\n  overflow-y: auto;\n}\n\n// scss-docs-start navbar-expand-loop\n// Generate series of `.navbar-expand-*` responsive classes for configuring\n// where your navbar collapses.\n.navbar-expand {\n  @each $breakpoint in map-keys($grid-breakpoints) {\n    $next: breakpoint-next($breakpoint, $grid-breakpoints);\n    $infix: breakpoint-infix($next, $grid-breakpoints);\n\n    // stylelint-disable-next-line scss/selector-no-union-class-name\n    &#{$infix} {\n      @include media-breakpoint-up($next) {\n        flex-wrap: nowrap;\n        justify-content: flex-start;\n\n        .navbar-nav {\n          flex-direction: row;\n\n          .dropdown-menu {\n            position: absolute;\n          }\n\n          .nav-link {\n            padding-right: $navbar-nav-link-padding-x;\n            padding-left: $navbar-nav-link-padding-x;\n          }\n        }\n\n        .navbar-nav-scroll {\n          overflow: visible;\n        }\n\n        .navbar-collapse {\n          display: flex !important; // stylelint-disable-line declaration-no-important\n          flex-basis: auto;\n        }\n\n        .navbar-toggler {\n          display: none;\n        }\n\n        .offcanvas-header {\n          display: none;\n        }\n\n        .offcanvas {\n          position: inherit;\n          bottom: 0;\n          z-index: 1000;\n          flex-grow: 1;\n          visibility: visible !important; // stylelint-disable-line declaration-no-important\n          background-color: transparent;\n          border-right: 0;\n          border-left: 0;\n          @include transition(none);\n          transform: none;\n        }\n        .offcanvas-top,\n        .offcanvas-bottom {\n          height: auto;\n          border-top: 0;\n          border-bottom: 0;\n        }\n\n        .offcanvas-body {\n          display: flex;\n          flex-grow: 0;\n          padding: 0;\n          overflow-y: visible;\n        }\n      }\n    }\n  }\n}\n// scss-docs-end navbar-expand-loop\n\n// Navbar themes\n//\n// Styles for switching between navbars with light or dark background.\n\n// Dark links against a light background\n.navbar-light {\n  .navbar-brand {\n    color: $navbar-light-brand-color;\n\n    &:hover,\n    &:focus {\n      color: $navbar-light-brand-hover-color;\n    }\n  }\n\n  .navbar-nav {\n    .nav-link {\n      color: $navbar-light-color;\n\n      &:hover,\n      &:focus {\n        color: $navbar-light-hover-color;\n      }\n\n      &.disabled {\n        color: $navbar-light-disabled-color;\n      }\n    }\n\n    .show > .nav-link,\n    .nav-link.active {\n      color: $navbar-light-active-color;\n    }\n  }\n\n  .navbar-toggler {\n    color: $navbar-light-color;\n    border-color: $navbar-light-toggler-border-color;\n  }\n\n  .navbar-toggler-icon {\n    background-image: escape-svg($navbar-light-toggler-icon-bg);\n  }\n\n  .navbar-text {\n    color: $navbar-light-color;\n\n    a,\n    a:hover,\n    a:focus  {\n      color: $navbar-light-active-color;\n    }\n  }\n}\n\n// White links against a dark background\n.navbar-dark {\n  .navbar-brand {\n    color: $navbar-dark-brand-color;\n\n    &:hover,\n    &:focus {\n      color: $navbar-dark-brand-hover-color;\n    }\n  }\n\n  .navbar-nav {\n    .nav-link {\n      color: $navbar-dark-color;\n\n      &:hover,\n      &:focus {\n        color: $navbar-dark-hover-color;\n      }\n\n      &.disabled {\n        color: $navbar-dark-disabled-color;\n      }\n    }\n\n    .show > .nav-link,\n    .nav-link.active {\n      color: $navbar-dark-active-color;\n    }\n  }\n\n  .navbar-toggler {\n    color: $navbar-dark-color;\n    border-color: $navbar-dark-toggler-border-color;\n  }\n\n  .navbar-toggler-icon {\n    background-image: escape-svg($navbar-dark-toggler-icon-bg);\n  }\n\n  .navbar-text {\n    color: $navbar-dark-color;\n    a,\n    a:hover,\n    a:focus {\n      color: $navbar-dark-active-color;\n    }\n  }\n}\n","//\n// Base styles\n//\n\n.card {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  min-width: 0; // See https://github.com/twbs/bootstrap/pull/22740#issuecomment-305868106\n  height: $card-height;\n  word-wrap: break-word;\n  background-color: $card-bg;\n  background-clip: border-box;\n  border: $card-border-width solid $card-border-color;\n  @include border-radius($card-border-radius);\n  @include box-shadow($card-box-shadow);\n\n  > hr {\n    margin-right: 0;\n    margin-left: 0;\n  }\n\n  > .list-group {\n    border-top: inherit;\n    border-bottom: inherit;\n\n    &:first-child {\n      border-top-width: 0;\n      @include border-top-radius($card-inner-border-radius);\n    }\n\n    &:last-child  {\n      border-bottom-width: 0;\n      @include border-bottom-radius($card-inner-border-radius);\n    }\n  }\n\n  // Due to specificity of the above selector (`.card > .list-group`), we must\n  // use a child selector here to prevent double borders.\n  > .card-header + .list-group,\n  > .list-group + .card-footer {\n    border-top: 0;\n  }\n}\n\n.card-body {\n  // Enable `flex-grow: 1` for decks and groups so that card blocks take up\n  // as much space as possible, ensuring footers are aligned to the bottom.\n  flex: 1 1 auto;\n  padding: $card-spacer-y $card-spacer-x;\n  color: $card-color;\n}\n\n.card-title {\n  margin-bottom: $card-title-spacer-y;\n}\n\n.card-subtitle {\n  margin-top: -$card-title-spacer-y * .5;\n  margin-bottom: 0;\n}\n\n.card-text:last-child {\n  margin-bottom: 0;\n}\n\n.card-link {\n  &:hover {\n    text-decoration: if($link-hover-decoration == underline, none, null);\n  }\n\n  + .card-link {\n    margin-left: $card-spacer-x;\n  }\n}\n\n//\n// Optional textual caps\n//\n\n.card-header {\n  padding: $card-cap-padding-y $card-cap-padding-x;\n  margin-bottom: 0; // Removes the default margin-bottom of <hN>\n  color: $card-cap-color;\n  background-color: $card-cap-bg;\n  border-bottom: $card-border-width solid $card-border-color;\n\n  &:first-child {\n    @include border-radius($card-inner-border-radius $card-inner-border-radius 0 0);\n  }\n}\n\n.card-footer {\n  padding: $card-cap-padding-y $card-cap-padding-x;\n  color: $card-cap-color;\n  background-color: $card-cap-bg;\n  border-top: $card-border-width solid $card-border-color;\n\n  &:last-child {\n    @include border-radius(0 0 $card-inner-border-radius $card-inner-border-radius);\n  }\n}\n\n\n//\n// Header navs\n//\n\n.card-header-tabs {\n  margin-right: -$card-cap-padding-x * .5;\n  margin-bottom: -$card-cap-padding-y;\n  margin-left: -$card-cap-padding-x * .5;\n  border-bottom: 0;\n\n  @if $nav-tabs-link-active-bg != $card-bg {\n    .nav-link.active {\n      background-color: $card-bg;\n      border-bottom-color: $card-bg;\n    }\n  }\n}\n\n.card-header-pills {\n  margin-right: -$card-cap-padding-x * .5;\n  margin-left: -$card-cap-padding-x * .5;\n}\n\n// Card image\n.card-img-overlay {\n  position: absolute;\n  top: 0;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  padding: $card-img-overlay-padding;\n  @include border-radius($card-inner-border-radius);\n}\n\n.card-img,\n.card-img-top,\n.card-img-bottom {\n  width: 100%; // Required because we use flexbox and this inherently applies align-self: stretch\n}\n\n.card-img,\n.card-img-top {\n  @include border-top-radius($card-inner-border-radius);\n}\n\n.card-img,\n.card-img-bottom {\n  @include border-bottom-radius($card-inner-border-radius);\n}\n\n\n//\n// Card groups\n//\n\n.card-group {\n  // The child selector allows nested `.card` within `.card-group`\n  // to display properly.\n  > .card {\n    margin-bottom: $card-group-margin;\n  }\n\n  @include media-breakpoint-up(sm) {\n    display: flex;\n    flex-flow: row wrap;\n    // The child selector allows nested `.card` within `.card-group`\n    // to display properly.\n    > .card {\n      // Flexbugs #4: https://github.com/philipwalton/flexbugs#flexbug-4\n      flex: 1 0 0%;\n      margin-bottom: 0;\n\n      + .card {\n        margin-left: 0;\n        border-left: 0;\n      }\n\n      // Handle rounded corners\n      @if $enable-rounded {\n        &:not(:last-child) {\n          @include border-end-radius(0);\n\n          .card-img-top,\n          .card-header {\n            // stylelint-disable-next-line property-disallowed-list\n            border-top-right-radius: 0;\n          }\n          .card-img-bottom,\n          .card-footer {\n            // stylelint-disable-next-line property-disallowed-list\n            border-bottom-right-radius: 0;\n          }\n        }\n\n        &:not(:first-child) {\n          @include border-start-radius(0);\n\n          .card-img-top,\n          .card-header {\n            // stylelint-disable-next-line property-disallowed-list\n            border-top-left-radius: 0;\n          }\n          .card-img-bottom,\n          .card-footer {\n            // stylelint-disable-next-line property-disallowed-list\n            border-bottom-left-radius: 0;\n          }\n        }\n      }\n    }\n  }\n}\n","//\n// Base styles\n//\n\n.accordion-button {\n  position: relative;\n  display: flex;\n  align-items: center;\n  width: 100%;\n  padding: $accordion-button-padding-y $accordion-button-padding-x;\n  @include font-size($font-size-base);\n  color: $accordion-button-color;\n  text-align: left; // Reset button style\n  background-color: $accordion-button-bg;\n  border: 0;\n  @include border-radius(0);\n  overflow-anchor: none;\n  @include transition($accordion-transition);\n\n  &:not(.collapsed) {\n    color: $accordion-button-active-color;\n    background-color: $accordion-button-active-bg;\n    box-shadow: inset 0 ($accordion-border-width * -1) 0 $accordion-border-color;\n\n    &::after {\n      background-image: escape-svg($accordion-button-active-icon);\n      transform: $accordion-icon-transform;\n    }\n  }\n\n  // Accordion icon\n  &::after {\n    flex-shrink: 0;\n    width: $accordion-icon-width;\n    height: $accordion-icon-width;\n    margin-left: auto;\n    content: \"\";\n    background-image: escape-svg($accordion-button-icon);\n    background-repeat: no-repeat;\n    background-size: $accordion-icon-width;\n    @include transition($accordion-icon-transition);\n  }\n\n  &:hover {\n    z-index: 2;\n  }\n\n  &:focus {\n    z-index: 3;\n    border-color: $accordion-button-focus-border-color;\n    outline: 0;\n    box-shadow: $accordion-button-focus-box-shadow;\n  }\n}\n\n.accordion-header {\n  margin-bottom: 0;\n}\n\n.accordion-item {\n  background-color: $accordion-bg;\n  border: $accordion-border-width solid $accordion-border-color;\n\n  &:first-of-type {\n    @include border-top-radius($accordion-border-radius);\n\n    .accordion-button {\n      @include border-top-radius($accordion-inner-border-radius);\n    }\n  }\n\n  &:not(:first-of-type) {\n    border-top: 0;\n  }\n\n  // Only set a border-radius on the last item if the accordion is collapsed\n  &:last-of-type {\n    @include border-bottom-radius($accordion-border-radius);\n\n    .accordion-button {\n      &.collapsed {\n        @include border-bottom-radius($accordion-inner-border-radius);\n      }\n    }\n\n    .accordion-collapse {\n      @include border-bottom-radius($accordion-border-radius);\n    }\n  }\n}\n\n.accordion-body {\n  padding: $accordion-body-padding-y $accordion-body-padding-x;\n}\n\n\n// Flush accordion items\n//\n// Remove borders and border-radius to keep accordion items edge-to-edge.\n\n.accordion-flush {\n  .accordion-collapse {\n    border-width: 0;\n  }\n\n  .accordion-item {\n    border-right: 0;\n    border-left: 0;\n    @include border-radius(0);\n\n    &:first-child { border-top: 0; }\n    &:last-child { border-bottom: 0; }\n\n    .accordion-button {\n      @include border-radius(0);\n    }\n  }\n}\n",".breadcrumb {\n  display: flex;\n  flex-wrap: wrap;\n  padding: $breadcrumb-padding-y $breadcrumb-padding-x;\n  margin-bottom: $breadcrumb-margin-bottom;\n  @include font-size($breadcrumb-font-size);\n  list-style: none;\n  background-color: $breadcrumb-bg;\n  @include border-radius($breadcrumb-border-radius);\n}\n\n.breadcrumb-item {\n  // The separator between breadcrumbs (by default, a forward-slash: \"/\")\n  + .breadcrumb-item {\n    padding-left: $breadcrumb-item-padding-x;\n\n    &::before {\n      float: left; // Suppress inline spacings and underlining of the separator\n      padding-right: $breadcrumb-item-padding-x;\n      color: $breadcrumb-divider-color;\n      content: var(--#{$variable-prefix}breadcrumb-divider, escape-svg($breadcrumb-divider)) #{\"/* rtl:\"} var(--#{$variable-prefix}breadcrumb-divider, escape-svg($breadcrumb-divider-flipped)) #{\"*/\"};\n    }\n  }\n\n  &.active {\n    color: $breadcrumb-active-color;\n  }\n}\n",".pagination {\n  display: flex;\n  @include list-unstyled();\n}\n\n.page-link {\n  position: relative;\n  display: block;\n  color: $pagination-color;\n  text-decoration: if($link-decoration == none, null, none);\n  background-color: $pagination-bg;\n  border: $pagination-border-width solid $pagination-border-color;\n  @include transition($pagination-transition);\n\n  &:hover {\n    z-index: 2;\n    color: $pagination-hover-color;\n    text-decoration: if($link-hover-decoration == underline, none, null);\n    background-color: $pagination-hover-bg;\n    border-color: $pagination-hover-border-color;\n  }\n\n  &:focus {\n    z-index: 3;\n    color: $pagination-focus-color;\n    background-color: $pagination-focus-bg;\n    outline: $pagination-focus-outline;\n    box-shadow: $pagination-focus-box-shadow;\n  }\n}\n\n.page-item {\n  &:not(:first-child) .page-link {\n    margin-left: $pagination-margin-start;\n  }\n\n  &.active .page-link {\n    z-index: 3;\n    color: $pagination-active-color;\n    @include gradient-bg($pagination-active-bg);\n    border-color: $pagination-active-border-color;\n  }\n\n  &.disabled .page-link {\n    color: $pagination-disabled-color;\n    pointer-events: none;\n    background-color: $pagination-disabled-bg;\n    border-color: $pagination-disabled-border-color;\n  }\n}\n\n\n//\n// Sizing\n//\n@include pagination-size($pagination-padding-y, $pagination-padding-x, null, $pagination-border-radius);\n\n.pagination-lg {\n  @include pagination-size($pagination-padding-y-lg, $pagination-padding-x-lg, $font-size-lg, $pagination-border-radius-lg);\n}\n\n.pagination-sm {\n  @include pagination-size($pagination-padding-y-sm, $pagination-padding-x-sm, $font-size-sm, $pagination-border-radius-sm);\n}\n","// Pagination\n\n// scss-docs-start pagination-mixin\n@mixin pagination-size($padding-y, $padding-x, $font-size, $border-radius) {\n  .page-link {\n    padding: $padding-y $padding-x;\n    @include font-size($font-size);\n  }\n\n  .page-item {\n    @if $pagination-margin-start == (-$pagination-border-width) {\n      &:first-child {\n        .page-link {\n          @include border-start-radius($border-radius);\n        }\n      }\n\n      &:last-child {\n        .page-link {\n          @include border-end-radius($border-radius);\n        }\n      }\n    } @else {\n      //Add border-radius to all pageLinks in case they have left margin\n      .page-link {\n        @include border-radius($border-radius);\n      }\n    }\n  }\n}\n// scss-docs-end pagination-mixin\n","// Base class\n//\n// Requires one of the contextual, color modifier classes for `color` and\n// `background-color`.\n\n.badge {\n  display: inline-block;\n  padding: $badge-padding-y $badge-padding-x;\n  @include font-size($badge-font-size);\n  font-weight: $badge-font-weight;\n  line-height: 1;\n  color: $badge-color;\n  text-align: center;\n  white-space: nowrap;\n  vertical-align: baseline;\n  @include border-radius($badge-border-radius);\n  @include gradient-bg();\n\n  // Empty badges collapse automatically\n  &:empty {\n    display: none;\n  }\n}\n\n// Quick fix for badges in buttons\n.btn .badge {\n  position: relative;\n  top: -1px;\n}\n","//\n// Base styles\n//\n\n.alert {\n  position: relative;\n  padding: $alert-padding-y $alert-padding-x;\n  margin-bottom: $alert-margin-bottom;\n  border: $alert-border-width solid transparent;\n  @include border-radius($alert-border-radius);\n}\n\n// Headings for larger alerts\n.alert-heading {\n  // Specified to prevent conflicts of changing $headings-color\n  color: inherit;\n}\n\n// Provide class for links that match alerts\n.alert-link {\n  font-weight: $alert-link-font-weight;\n}\n\n\n// Dismissible alerts\n//\n// Expand the right padding and account for the close button's positioning.\n\n.alert-dismissible {\n  padding-right: $alert-dismissible-padding-r;\n\n  // Adjust close link position\n  .btn-close {\n    position: absolute;\n    top: 0;\n    right: 0;\n    z-index: $stretched-link-z-index + 1;\n    padding: $alert-padding-y * 1.25 $alert-padding-x;\n  }\n}\n\n\n// scss-docs-start alert-modifiers\n// Generate contextual modifier classes for colorizing the alert.\n\n@each $state, $value in $theme-colors {\n  $alert-background: shift-color($value, $alert-bg-scale);\n  $alert-border: shift-color($value, $alert-border-scale);\n  $alert-color: shift-color($value, $alert-color-scale);\n  @if (contrast-ratio($alert-background, $alert-color) < $min-contrast-ratio) {\n    $alert-color: mix($value, color-contrast($alert-background), abs($alert-color-scale));\n  }\n  .alert-#{$state} {\n    @include alert-variant($alert-background, $alert-border, $alert-color);\n  }\n}\n// scss-docs-end alert-modifiers\n","// scss-docs-start alert-variant-mixin\n@mixin alert-variant($background, $border, $color) {\n  color: $color;\n  @include gradient-bg($background);\n  border-color: $border;\n\n  .alert-link {\n    color: shade-color($color, 20%);\n  }\n}\n// scss-docs-end alert-variant-mixin\n","// Disable animation if transitions are disabled\n\n// scss-docs-start progress-keyframes\n@if $enable-transitions {\n  @keyframes progress-bar-stripes {\n    0% { background-position-x: $progress-height; }\n  }\n}\n// scss-docs-end progress-keyframes\n\n.progress {\n  display: flex;\n  height: $progress-height;\n  overflow: hidden; // force rounded corners by cropping it\n  @include font-size($progress-font-size);\n  background-color: $progress-bg;\n  @include border-radius($progress-border-radius);\n  @include box-shadow($progress-box-shadow);\n}\n\n.progress-bar {\n  display: flex;\n  flex-direction: column;\n  justify-content: center;\n  overflow: hidden;\n  color: $progress-bar-color;\n  text-align: center;\n  white-space: nowrap;\n  background-color: $progress-bar-bg;\n  @include transition($progress-bar-transition);\n}\n\n.progress-bar-striped {\n  @include gradient-striped();\n  background-size: $progress-height $progress-height;\n}\n\n@if $enable-transitions {\n  .progress-bar-animated {\n    animation: $progress-bar-animation-timing progress-bar-stripes;\n\n    @if $enable-reduced-motion {\n      @media (prefers-reduced-motion: reduce) {\n        animation: none;\n      }\n    }\n  }\n}\n","// Base class\n//\n// Easily usable on <ul>, <ol>, or <div>.\n\n.list-group {\n  display: flex;\n  flex-direction: column;\n\n  // No need to set list-style: none; since .list-group-item is block level\n  padding-left: 0; // reset padding because ul and ol\n  margin-bottom: 0;\n  @include border-radius($list-group-border-radius);\n}\n\n.list-group-numbered {\n  list-style-type: none;\n  counter-reset: section;\n\n  > li::before {\n    // Increments only this instance of the section counter\n    content: counters(section, \".\") \". \";\n    counter-increment: section;\n  }\n}\n\n\n// Interactive list items\n//\n// Use anchor or button elements instead of `li`s or `div`s to create interactive\n// list items. Includes an extra `.active` modifier class for selected items.\n\n.list-group-item-action {\n  width: 100%; // For `<button>`s (anchors become 100% by default though)\n  color: $list-group-action-color;\n  text-align: inherit; // For `<button>`s (anchors inherit)\n\n  // Hover state\n  &:hover,\n  &:focus {\n    z-index: 1; // Place hover/focus items above their siblings for proper border styling\n    color: $list-group-action-hover-color;\n    text-decoration: none;\n    background-color: $list-group-hover-bg;\n  }\n\n  &:active {\n    color: $list-group-action-active-color;\n    background-color: $list-group-action-active-bg;\n  }\n}\n\n\n// Individual list items\n//\n// Use on `li`s or `div`s within the `.list-group` parent.\n\n.list-group-item {\n  position: relative;\n  display: block;\n  padding: $list-group-item-padding-y $list-group-item-padding-x;\n  color: $list-group-color;\n  text-decoration: if($link-decoration == none, null, none);\n  background-color: $list-group-bg;\n  border: $list-group-border-width solid $list-group-border-color;\n\n  &:first-child {\n    @include border-top-radius(inherit);\n  }\n\n  &:last-child {\n    @include border-bottom-radius(inherit);\n  }\n\n  &.disabled,\n  &:disabled {\n    color: $list-group-disabled-color;\n    pointer-events: none;\n    background-color: $list-group-disabled-bg;\n  }\n\n  // Include both here for `<a>`s and `<button>`s\n  &.active {\n    z-index: 2; // Place active items above their siblings for proper border styling\n    color: $list-group-active-color;\n    background-color: $list-group-active-bg;\n    border-color: $list-group-active-border-color;\n  }\n\n  & + & {\n    border-top-width: 0;\n\n    &.active {\n      margin-top: -$list-group-border-width;\n      border-top-width: $list-group-border-width;\n    }\n  }\n}\n\n\n// Horizontal\n//\n// Change the layout of list group items from vertical (default) to horizontal.\n\n@each $breakpoint in map-keys($grid-breakpoints) {\n  @include media-breakpoint-up($breakpoint) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    .list-group-horizontal#{$infix} {\n      flex-direction: row;\n\n      > .list-group-item {\n        &:first-child {\n          @include border-bottom-start-radius($list-group-border-radius);\n          @include border-top-end-radius(0);\n        }\n\n        &:last-child {\n          @include border-top-end-radius($list-group-border-radius);\n          @include border-bottom-start-radius(0);\n        }\n\n        &.active {\n          margin-top: 0;\n        }\n\n        + .list-group-item {\n          border-top-width: $list-group-border-width;\n          border-left-width: 0;\n\n          &.active {\n            margin-left: -$list-group-border-width;\n            border-left-width: $list-group-border-width;\n          }\n        }\n      }\n    }\n  }\n}\n\n\n// Flush list items\n//\n// Remove borders and border-radius to keep list group items edge-to-edge. Most\n// useful within other components (e.g., cards).\n\n.list-group-flush {\n  @include border-radius(0);\n\n  > .list-group-item {\n    border-width: 0 0 $list-group-border-width;\n\n    &:last-child {\n      border-bottom-width: 0;\n    }\n  }\n}\n\n\n// scss-docs-start list-group-modifiers\n// List group contextual variants\n//\n// Add modifier classes to change text and background color on individual items.\n// Organizationally, this must come after the `:hover` states.\n\n@each $state, $value in $theme-colors {\n  $list-group-variant-bg: shift-color($value, $list-group-item-bg-scale);\n  $list-group-variant-color: shift-color($value, $list-group-item-color-scale);\n  @if (contrast-ratio($list-group-variant-bg, $list-group-variant-color) < $min-contrast-ratio) {\n    $list-group-variant-color: mix($value, color-contrast($list-group-variant-bg), abs($list-group-item-color-scale));\n  }\n\n  @include list-group-item-variant($state, $list-group-variant-bg, $list-group-variant-color);\n}\n// scss-docs-end list-group-modifiers\n","// List Groups\n\n// scss-docs-start list-group-mixin\n@mixin list-group-item-variant($state, $background, $color) {\n  .list-group-item-#{$state} {\n    color: $color;\n    background-color: $background;\n\n    &.list-group-item-action {\n      &:hover,\n      &:focus {\n        color: $color;\n        background-color: shade-color($background, 10%);\n      }\n\n      &.active {\n        color: $white;\n        background-color: $color;\n        border-color: $color;\n      }\n    }\n  }\n}\n// scss-docs-end list-group-mixin\n","// transparent background and border properties included for button version.\n// iOS requires the button element instead of an anchor tag.\n// If you want the anchor version, it requires `href=\"#\"`.\n// See https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile\n\n.btn-close {\n  box-sizing: content-box;\n  width: $btn-close-width;\n  height: $btn-close-height;\n  padding: $btn-close-padding-y $btn-close-padding-x;\n  color: $btn-close-color;\n  background: transparent escape-svg($btn-close-bg) center / $btn-close-width auto no-repeat; // include transparent for button elements\n  border: 0; // for button elements\n  @include border-radius();\n  opacity: $btn-close-opacity;\n\n  // Override <a>'s hover style\n  &:hover {\n    color: $btn-close-color;\n    text-decoration: none;\n    opacity: $btn-close-hover-opacity;\n  }\n\n  &:focus {\n    outline: 0;\n    box-shadow: $btn-close-focus-shadow;\n    opacity: $btn-close-focus-opacity;\n  }\n\n  &:disabled,\n  &.disabled {\n    pointer-events: none;\n    user-select: none;\n    opacity: $btn-close-disabled-opacity;\n  }\n}\n\n.btn-close-white {\n  filter: $btn-close-white-filter;\n}\n",".toast {\n  width: $toast-max-width;\n  max-width: 100%;\n  @include font-size($toast-font-size);\n  color: $toast-color;\n  pointer-events: auto;\n  background-color: $toast-background-color;\n  background-clip: padding-box;\n  border: $toast-border-width solid $toast-border-color;\n  box-shadow: $toast-box-shadow;\n  @include border-radius($toast-border-radius);\n\n  &.showing {\n    opacity: 0;\n  }\n\n  &:not(.show) {\n    display: none;\n  }\n}\n\n.toast-container {\n  width: max-content;\n  max-width: 100%;\n  pointer-events: none;\n\n  > :not(:last-child) {\n    margin-bottom: $toast-spacing;\n  }\n}\n\n.toast-header {\n  display: flex;\n  align-items: center;\n  padding: $toast-padding-y $toast-padding-x;\n  color: $toast-header-color;\n  background-color: $toast-header-background-color;\n  background-clip: padding-box;\n  border-bottom: $toast-border-width solid $toast-header-border-color;\n  @include border-top-radius(subtract($toast-border-radius, $toast-border-width));\n\n  .btn-close {\n    margin-right: $toast-padding-x * -.5;\n    margin-left: $toast-padding-x;\n  }\n}\n\n.toast-body {\n  padding: $toast-padding-x; // apply to both vertical and horizontal\n  word-wrap: break-word;\n}\n","// .modal-open      - body class for killing the scroll\n// .modal           - container to scroll within\n// .modal-dialog    - positioning shell for the actual modal\n// .modal-content   - actual modal w/ bg and corners and stuff\n\n\n// Container that the modal scrolls within\n.modal {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: $zindex-modal;\n  display: none;\n  width: 100%;\n  height: 100%;\n  overflow-x: hidden;\n  overflow-y: auto;\n  // Prevent Chrome on Windows from adding a focus outline. For details, see\n  // https://github.com/twbs/bootstrap/pull/10951.\n  outline: 0;\n  // We deliberately don't use `-webkit-overflow-scrolling: touch;` due to a\n  // gnarly iOS Safari bug: https://bugs.webkit.org/show_bug.cgi?id=158342\n  // See also https://github.com/twbs/bootstrap/issues/17695\n}\n\n// Shell div to position the modal with bottom padding\n.modal-dialog {\n  position: relative;\n  width: auto;\n  margin: $modal-dialog-margin;\n  // allow clicks to pass through for custom click handling to close modal\n  pointer-events: none;\n\n  // When fading in the modal, animate it to slide down\n  .modal.fade & {\n    @include transition($modal-transition);\n    transform: $modal-fade-transform;\n  }\n  .modal.show & {\n    transform: $modal-show-transform;\n  }\n\n  // When trying to close, animate focus to scale\n  .modal.modal-static & {\n    transform: $modal-scale-transform;\n  }\n}\n\n.modal-dialog-scrollable {\n  height: subtract(100%, $modal-dialog-margin * 2);\n\n  .modal-content {\n    max-height: 100%;\n    overflow: hidden;\n  }\n\n  .modal-body {\n    overflow-y: auto;\n  }\n}\n\n.modal-dialog-centered {\n  display: flex;\n  align-items: center;\n  min-height: subtract(100%, $modal-dialog-margin * 2);\n}\n\n// Actual modal\n.modal-content {\n  position: relative;\n  display: flex;\n  flex-direction: column;\n  width: 100%; // Ensure `.modal-content` extends the full width of the parent `.modal-dialog`\n  // counteract the pointer-events: none; in the .modal-dialog\n  color: $modal-content-color;\n  pointer-events: auto;\n  background-color: $modal-content-bg;\n  background-clip: padding-box;\n  border: $modal-content-border-width solid $modal-content-border-color;\n  @include border-radius($modal-content-border-radius);\n  @include box-shadow($modal-content-box-shadow-xs);\n  // Remove focus outline from opened modal\n  outline: 0;\n}\n\n// Modal background\n.modal-backdrop {\n  @include overlay-backdrop($zindex-modal-backdrop, $modal-backdrop-bg, $modal-backdrop-opacity);\n}\n\n// Modal header\n// Top section of the modal w/ title and dismiss\n.modal-header {\n  display: flex;\n  flex-shrink: 0;\n  align-items: center;\n  justify-content: space-between; // Put modal header elements (title and dismiss) on opposite ends\n  padding: $modal-header-padding;\n  border-bottom: $modal-header-border-width solid $modal-header-border-color;\n  @include border-top-radius($modal-content-inner-border-radius);\n\n  .btn-close {\n    padding: ($modal-header-padding-y * .5) ($modal-header-padding-x * .5);\n    margin: ($modal-header-padding-y * -.5) ($modal-header-padding-x * -.5) ($modal-header-padding-y * -.5) auto;\n  }\n}\n\n// Title text within header\n.modal-title {\n  margin-bottom: 0;\n  line-height: $modal-title-line-height;\n}\n\n// Modal body\n// Where all modal content resides (sibling of .modal-header and .modal-footer)\n.modal-body {\n  position: relative;\n  // Enable `flex-grow: 1` so that the body take up as much space as possible\n  // when there should be a fixed height on `.modal-dialog`.\n  flex: 1 1 auto;\n  padding: $modal-inner-padding;\n}\n\n// Footer (for actions)\n.modal-footer {\n  display: flex;\n  flex-wrap: wrap;\n  flex-shrink: 0;\n  align-items: center; // vertically center\n  justify-content: flex-end; // Right align buttons with flex property because text-align doesn't work on flex items\n  padding: $modal-inner-padding - $modal-footer-margin-between * .5;\n  border-top: $modal-footer-border-width solid $modal-footer-border-color;\n  @include border-bottom-radius($modal-content-inner-border-radius);\n\n  // Place margin between footer elements\n  // This solution is far from ideal because of the universal selector usage,\n  // but is needed to fix https://github.com/twbs/bootstrap/issues/24800\n  > * {\n    margin: $modal-footer-margin-between * .5;\n  }\n}\n\n// Scale up the modal\n@include media-breakpoint-up(sm) {\n  // Automatically set modal's width for larger viewports\n  .modal-dialog {\n    max-width: $modal-md;\n    margin: $modal-dialog-margin-y-sm-up auto;\n  }\n\n  .modal-dialog-scrollable {\n    height: subtract(100%, $modal-dialog-margin-y-sm-up * 2);\n  }\n\n  .modal-dialog-centered {\n    min-height: subtract(100%, $modal-dialog-margin-y-sm-up * 2);\n  }\n\n  .modal-content {\n    @include box-shadow($modal-content-box-shadow-sm-up);\n  }\n\n  .modal-sm { max-width: $modal-sm; }\n}\n\n@include media-breakpoint-up(lg) {\n  .modal-lg,\n  .modal-xl {\n    max-width: $modal-lg;\n  }\n}\n\n@include media-breakpoint-up(xl) {\n  .modal-xl { max-width: $modal-xl; }\n}\n\n// scss-docs-start modal-fullscreen-loop\n@each $breakpoint in map-keys($grid-breakpoints) {\n  $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n  $postfix: if($infix != \"\", $infix + \"-down\", \"\");\n\n  @include media-breakpoint-down($breakpoint) {\n    .modal-fullscreen#{$postfix} {\n      width: 100vw;\n      max-width: none;\n      height: 100%;\n      margin: 0;\n\n      .modal-content {\n        height: 100%;\n        border: 0;\n        @include border-radius(0);\n      }\n\n      .modal-header {\n        @include border-radius(0);\n      }\n\n      .modal-body {\n        overflow-y: auto;\n      }\n\n      .modal-footer {\n        @include border-radius(0);\n      }\n    }\n  }\n}\n// scss-docs-end modal-fullscreen-loop\n","// Shared between modals and offcanvases\n@mixin overlay-backdrop($zindex, $backdrop-bg, $backdrop-opacity) {\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: $zindex;\n  width: 100vw;\n  height: 100vh;\n  background-color: $backdrop-bg;\n\n  // Fade for backdrop\n  &.fade { opacity: 0; }\n  &.show { opacity: $backdrop-opacity; }\n}\n","// Base class\n.tooltip {\n  position: absolute;\n  z-index: $zindex-tooltip;\n  display: block;\n  margin: $tooltip-margin;\n  // Our parent element can be arbitrary since tooltips are by default inserted as a sibling of their target element.\n  // So reset our font and text properties to avoid inheriting weird values.\n  @include reset-text();\n  @include font-size($tooltip-font-size);\n  // Allow breaking very long words so they don't overflow the tooltip's bounds\n  word-wrap: break-word;\n  opacity: 0;\n\n  &.show { opacity: $tooltip-opacity; }\n\n  .tooltip-arrow {\n    position: absolute;\n    display: block;\n    width: $tooltip-arrow-width;\n    height: $tooltip-arrow-height;\n\n    &::before {\n      position: absolute;\n      content: \"\";\n      border-color: transparent;\n      border-style: solid;\n    }\n  }\n}\n\n.bs-tooltip-top {\n  padding: $tooltip-arrow-height 0;\n\n  .tooltip-arrow {\n    bottom: 0;\n\n    &::before {\n      top: -1px;\n      border-width: $tooltip-arrow-height ($tooltip-arrow-width * .5) 0;\n      border-top-color: $tooltip-arrow-color;\n    }\n  }\n}\n\n.bs-tooltip-end {\n  padding: 0 $tooltip-arrow-height;\n\n  .tooltip-arrow {\n    left: 0;\n    width: $tooltip-arrow-height;\n    height: $tooltip-arrow-width;\n\n    &::before {\n      right: -1px;\n      border-width: ($tooltip-arrow-width * .5) $tooltip-arrow-height ($tooltip-arrow-width * .5) 0;\n      border-right-color: $tooltip-arrow-color;\n    }\n  }\n}\n\n.bs-tooltip-bottom {\n  padding: $tooltip-arrow-height 0;\n\n  .tooltip-arrow {\n    top: 0;\n\n    &::before {\n      bottom: -1px;\n      border-width: 0 ($tooltip-arrow-width * .5) $tooltip-arrow-height;\n      border-bottom-color: $tooltip-arrow-color;\n    }\n  }\n}\n\n.bs-tooltip-start {\n  padding: 0 $tooltip-arrow-height;\n\n  .tooltip-arrow {\n    right: 0;\n    width: $tooltip-arrow-height;\n    height: $tooltip-arrow-width;\n\n    &::before {\n      left: -1px;\n      border-width: ($tooltip-arrow-width * .5) 0 ($tooltip-arrow-width * .5) $tooltip-arrow-height;\n      border-left-color: $tooltip-arrow-color;\n    }\n  }\n}\n\n.bs-tooltip-auto {\n  &[data-popper-placement^=\"top\"] {\n    @extend .bs-tooltip-top;\n  }\n  &[data-popper-placement^=\"right\"] {\n    @extend .bs-tooltip-end;\n  }\n  &[data-popper-placement^=\"bottom\"] {\n    @extend .bs-tooltip-bottom;\n  }\n  &[data-popper-placement^=\"left\"] {\n    @extend .bs-tooltip-start;\n  }\n}\n\n// Wrapper for the tooltip content\n.tooltip-inner {\n  max-width: $tooltip-max-width;\n  padding: $tooltip-padding-y $tooltip-padding-x;\n  color: $tooltip-color;\n  text-align: center;\n  background-color: $tooltip-bg;\n  @include border-radius($tooltip-border-radius);\n}\n","@mixin reset-text {\n  font-family: $font-family-base;\n  // We deliberately do NOT reset font-size or overflow-wrap / word-wrap.\n  font-style: normal;\n  font-weight: $font-weight-normal;\n  line-height: $line-height-base;\n  text-align: left; // Fallback for where `start` is not supported\n  text-align: start;\n  text-decoration: none;\n  text-shadow: none;\n  text-transform: none;\n  letter-spacing: normal;\n  word-break: normal;\n  word-spacing: normal;\n  white-space: normal;\n  line-break: auto;\n}\n",".popover {\n  position: absolute;\n  top: 0;\n  left: 0 #{\"/* rtl:ignore */\"};\n  z-index: $zindex-popover;\n  display: block;\n  max-width: $popover-max-width;\n  // Our parent element can be arbitrary since tooltips are by default inserted as a sibling of their target element.\n  // So reset our font and text properties to avoid inheriting weird values.\n  @include reset-text();\n  @include font-size($popover-font-size);\n  // Allow breaking very long words so they don't overflow the popover's bounds\n  word-wrap: break-word;\n  background-color: $popover-bg;\n  background-clip: padding-box;\n  border: $popover-border-width solid $popover-border-color;\n  @include border-radius($popover-border-radius);\n  @include box-shadow($popover-box-shadow);\n\n  .popover-arrow {\n    position: absolute;\n    display: block;\n    width: $popover-arrow-width;\n    height: $popover-arrow-height;\n\n    &::before,\n    &::after {\n      position: absolute;\n      display: block;\n      content: \"\";\n      border-color: transparent;\n      border-style: solid;\n    }\n  }\n}\n\n.bs-popover-top {\n  > .popover-arrow {\n    bottom: subtract(-$popover-arrow-height, $popover-border-width);\n\n    &::before {\n      bottom: 0;\n      border-width: $popover-arrow-height ($popover-arrow-width * .5) 0;\n      border-top-color: $popover-arrow-outer-color;\n    }\n\n    &::after {\n      bottom: $popover-border-width;\n      border-width: $popover-arrow-height ($popover-arrow-width * .5) 0;\n      border-top-color: $popover-arrow-color;\n    }\n  }\n}\n\n.bs-popover-end {\n  > .popover-arrow {\n    left: subtract(-$popover-arrow-height, $popover-border-width);\n    width: $popover-arrow-height;\n    height: $popover-arrow-width;\n\n    &::before {\n      left: 0;\n      border-width: ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5) 0;\n      border-right-color: $popover-arrow-outer-color;\n    }\n\n    &::after {\n      left: $popover-border-width;\n      border-width: ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5) 0;\n      border-right-color: $popover-arrow-color;\n    }\n  }\n}\n\n.bs-popover-bottom {\n  > .popover-arrow {\n    top: subtract(-$popover-arrow-height, $popover-border-width);\n\n    &::before {\n      top: 0;\n      border-width: 0 ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5);\n      border-bottom-color: $popover-arrow-outer-color;\n    }\n\n    &::after {\n      top: $popover-border-width;\n      border-width: 0 ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5);\n      border-bottom-color: $popover-arrow-color;\n    }\n  }\n\n  // This will remove the popover-header's border just below the arrow\n  .popover-header::before {\n    position: absolute;\n    top: 0;\n    left: 50%;\n    display: block;\n    width: $popover-arrow-width;\n    margin-left: -$popover-arrow-width * .5;\n    content: \"\";\n    border-bottom: $popover-border-width solid $popover-header-bg;\n  }\n}\n\n.bs-popover-start {\n  > .popover-arrow {\n    right: subtract(-$popover-arrow-height, $popover-border-width);\n    width: $popover-arrow-height;\n    height: $popover-arrow-width;\n\n    &::before {\n      right: 0;\n      border-width: ($popover-arrow-width * .5) 0 ($popover-arrow-width * .5) $popover-arrow-height;\n      border-left-color: $popover-arrow-outer-color;\n    }\n\n    &::after {\n      right: $popover-border-width;\n      border-width: ($popover-arrow-width * .5) 0 ($popover-arrow-width * .5) $popover-arrow-height;\n      border-left-color: $popover-arrow-color;\n    }\n  }\n}\n\n.bs-popover-auto {\n  &[data-popper-placement^=\"top\"] {\n    @extend .bs-popover-top;\n  }\n  &[data-popper-placement^=\"right\"] {\n    @extend .bs-popover-end;\n  }\n  &[data-popper-placement^=\"bottom\"] {\n    @extend .bs-popover-bottom;\n  }\n  &[data-popper-placement^=\"left\"] {\n    @extend .bs-popover-start;\n  }\n}\n\n// Offset the popover to account for the popover arrow\n.popover-header {\n  padding: $popover-header-padding-y $popover-header-padding-x;\n  margin-bottom: 0; // Reset the default from Reboot\n  @include font-size($font-size-base);\n  color: $popover-header-color;\n  background-color: $popover-header-bg;\n  border-bottom: $popover-border-width solid $popover-border-color;\n  @include border-top-radius($popover-inner-border-radius);\n\n  &:empty {\n    display: none;\n  }\n}\n\n.popover-body {\n  padding: $popover-body-padding-y $popover-body-padding-x;\n  color: $popover-body-color;\n}\n","// Notes on the classes:\n//\n// 1. .carousel.pointer-event should ideally be pan-y (to allow for users to scroll vertically)\n//    even when their scroll action started on a carousel, but for compatibility (with Firefox)\n//    we're preventing all actions instead\n// 2. The .carousel-item-start and .carousel-item-end is used to indicate where\n//    the active slide is heading.\n// 3. .active.carousel-item is the current slide.\n// 4. .active.carousel-item-start and .active.carousel-item-end is the current\n//    slide in its in-transition state. Only one of these occurs at a time.\n// 5. .carousel-item-next.carousel-item-start and .carousel-item-prev.carousel-item-end\n//    is the upcoming slide in transition.\n\n.carousel {\n  position: relative;\n}\n\n.carousel.pointer-event {\n  touch-action: pan-y;\n}\n\n.carousel-inner {\n  position: relative;\n  width: 100%;\n  overflow: hidden;\n  @include clearfix();\n}\n\n.carousel-item {\n  position: relative;\n  display: none;\n  float: left;\n  width: 100%;\n  margin-right: -100%;\n  backface-visibility: hidden;\n  @include transition($carousel-transition);\n}\n\n.carousel-item.active,\n.carousel-item-next,\n.carousel-item-prev {\n  display: block;\n}\n\n/* rtl:begin:ignore */\n.carousel-item-next:not(.carousel-item-start),\n.active.carousel-item-end {\n  transform: translateX(100%);\n}\n\n.carousel-item-prev:not(.carousel-item-end),\n.active.carousel-item-start {\n  transform: translateX(-100%);\n}\n\n/* rtl:end:ignore */\n\n\n//\n// Alternate transitions\n//\n\n.carousel-fade {\n  .carousel-item {\n    opacity: 0;\n    transition-property: opacity;\n    transform: none;\n  }\n\n  .carousel-item.active,\n  .carousel-item-next.carousel-item-start,\n  .carousel-item-prev.carousel-item-end {\n    z-index: 1;\n    opacity: 1;\n  }\n\n  .active.carousel-item-start,\n  .active.carousel-item-end {\n    z-index: 0;\n    opacity: 0;\n    @include transition(opacity 0s $carousel-transition-duration);\n  }\n}\n\n\n//\n// Left/right controls for nav\n//\n\n.carousel-control-prev,\n.carousel-control-next {\n  position: absolute;\n  top: 0;\n  bottom: 0;\n  z-index: 1;\n  // Use flex for alignment (1-3)\n  display: flex; // 1. allow flex styles\n  align-items: center; // 2. vertically center contents\n  justify-content: center; // 3. horizontally center contents\n  width: $carousel-control-width;\n  padding: 0;\n  color: $carousel-control-color;\n  text-align: center;\n  background: none;\n  border: 0;\n  opacity: $carousel-control-opacity;\n  @include transition($carousel-control-transition);\n\n  // Hover/focus state\n  &:hover,\n  &:focus {\n    color: $carousel-control-color;\n    text-decoration: none;\n    outline: 0;\n    opacity: $carousel-control-hover-opacity;\n  }\n}\n.carousel-control-prev {\n  left: 0;\n  background-image: if($enable-gradients, linear-gradient(90deg, rgba($black, .25), rgba($black, .001)), null);\n}\n.carousel-control-next {\n  right: 0;\n  background-image: if($enable-gradients, linear-gradient(270deg, rgba($black, .25), rgba($black, .001)), null);\n}\n\n// Icons for within\n.carousel-control-prev-icon,\n.carousel-control-next-icon {\n  display: inline-block;\n  width: $carousel-control-icon-width;\n  height: $carousel-control-icon-width;\n  background-repeat: no-repeat;\n  background-position: 50%;\n  background-size: 100% 100%;\n}\n\n/* rtl:options: {\n  \"autoRename\": true,\n  \"stringMap\":[ {\n    \"name\"    : \"prev-next\",\n    \"search\"  : \"prev\",\n    \"replace\" : \"next\"\n  } ]\n} */\n.carousel-control-prev-icon {\n  background-image: escape-svg($carousel-control-prev-icon-bg);\n}\n.carousel-control-next-icon {\n  background-image: escape-svg($carousel-control-next-icon-bg);\n}\n\n// Optional indicator pips/controls\n//\n// Add a container (such as a list) with the following class and add an item (ideally a focusable control,\n// like a button) with data-bs-target for each slide your carousel holds.\n\n.carousel-indicators {\n  position: absolute;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: 2;\n  display: flex;\n  justify-content: center;\n  padding: 0;\n  // Use the .carousel-control's width as margin so we don't overlay those\n  margin-right: $carousel-control-width;\n  margin-bottom: 1rem;\n  margin-left: $carousel-control-width;\n  list-style: none;\n\n  [data-bs-target] {\n    box-sizing: content-box;\n    flex: 0 1 auto;\n    width: $carousel-indicator-width;\n    height: $carousel-indicator-height;\n    padding: 0;\n    margin-right: $carousel-indicator-spacer;\n    margin-left: $carousel-indicator-spacer;\n    text-indent: -999px;\n    cursor: pointer;\n    background-color: $carousel-indicator-active-bg;\n    background-clip: padding-box;\n    border: 0;\n    // Use transparent borders to increase the hit area by 10px on top and bottom.\n    border-top: $carousel-indicator-hit-area-height solid transparent;\n    border-bottom: $carousel-indicator-hit-area-height solid transparent;\n    opacity: $carousel-indicator-opacity;\n    @include transition($carousel-indicator-transition);\n  }\n\n  .active {\n    opacity: $carousel-indicator-active-opacity;\n  }\n}\n\n\n// Optional captions\n//\n//\n\n.carousel-caption {\n  position: absolute;\n  right: (100% - $carousel-caption-width) * .5;\n  bottom: $carousel-caption-spacer;\n  left: (100% - $carousel-caption-width) * .5;\n  padding-top: $carousel-caption-padding-y;\n  padding-bottom: $carousel-caption-padding-y;\n  color: $carousel-caption-color;\n  text-align: center;\n}\n\n// Dark mode carousel\n\n.carousel-dark {\n  .carousel-control-prev-icon,\n  .carousel-control-next-icon {\n    filter: $carousel-dark-control-icon-filter;\n  }\n\n  .carousel-indicators [data-bs-target] {\n    background-color: $carousel-dark-indicator-active-bg;\n  }\n\n  .carousel-caption {\n    color: $carousel-dark-caption-color;\n  }\n}\n","// scss-docs-start clearfix\n@mixin clearfix() {\n  &::after {\n    display: block;\n    clear: both;\n    content: \"\";\n  }\n}\n// scss-docs-end clearfix\n","//\n// Rotating border\n//\n\n// scss-docs-start spinner-border-keyframes\n@keyframes spinner-border {\n  to { transform: rotate(360deg) #{\"/* rtl:ignore */\"}; }\n}\n// scss-docs-end spinner-border-keyframes\n\n.spinner-border {\n  display: inline-block;\n  width: $spinner-width;\n  height: $spinner-height;\n  vertical-align: $spinner-vertical-align;\n  border: $spinner-border-width solid currentColor;\n  border-right-color: transparent;\n  // stylelint-disable-next-line property-disallowed-list\n  border-radius: 50%;\n  animation: $spinner-animation-speed linear infinite spinner-border;\n}\n\n.spinner-border-sm {\n  width: $spinner-width-sm;\n  height: $spinner-height-sm;\n  border-width: $spinner-border-width-sm;\n}\n\n//\n// Growing circle\n//\n\n// scss-docs-start spinner-grow-keyframes\n@keyframes spinner-grow {\n  0% {\n    transform: scale(0);\n  }\n  50% {\n    opacity: 1;\n    transform: none;\n  }\n}\n// scss-docs-end spinner-grow-keyframes\n\n.spinner-grow {\n  display: inline-block;\n  width: $spinner-width;\n  height: $spinner-height;\n  vertical-align: $spinner-vertical-align;\n  background-color: currentColor;\n  // stylelint-disable-next-line property-disallowed-list\n  border-radius: 50%;\n  opacity: 0;\n  animation: $spinner-animation-speed linear infinite spinner-grow;\n}\n\n.spinner-grow-sm {\n  width: $spinner-width-sm;\n  height: $spinner-height-sm;\n}\n\n@if $enable-reduced-motion {\n  @media (prefers-reduced-motion: reduce) {\n    .spinner-border,\n    .spinner-grow {\n      animation-duration: $spinner-animation-speed * 2;\n    }\n  }\n}\n",".offcanvas {\n  position: fixed;\n  bottom: 0;\n  z-index: $zindex-offcanvas;\n  display: flex;\n  flex-direction: column;\n  max-width: 100%;\n  color: $offcanvas-color;\n  visibility: hidden;\n  background-color: $offcanvas-bg-color;\n  background-clip: padding-box;\n  outline: 0;\n  @include box-shadow($offcanvas-box-shadow);\n  @include transition(transform $offcanvas-transition-duration ease-in-out);\n}\n\n.offcanvas-backdrop {\n  @include overlay-backdrop($zindex-offcanvas-backdrop, $offcanvas-backdrop-bg, $offcanvas-backdrop-opacity);\n}\n\n.offcanvas-header {\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  padding: $offcanvas-padding-y $offcanvas-padding-x;\n\n  .btn-close {\n    padding: ($offcanvas-padding-y * .5) ($offcanvas-padding-x * .5);\n    margin-top: $offcanvas-padding-y * -.5;\n    margin-right: $offcanvas-padding-x * -.5;\n    margin-bottom: $offcanvas-padding-y * -.5;\n  }\n}\n\n.offcanvas-title {\n  margin-bottom: 0;\n  line-height: $offcanvas-title-line-height;\n}\n\n.offcanvas-body {\n  flex-grow: 1;\n  padding: $offcanvas-padding-y $offcanvas-padding-x;\n  overflow-y: auto;\n}\n\n.offcanvas-start {\n  top: 0;\n  left: 0;\n  width: $offcanvas-horizontal-width;\n  border-right: $offcanvas-border-width solid $offcanvas-border-color;\n  transform: translateX(-100%);\n}\n\n.offcanvas-end {\n  top: 0;\n  right: 0;\n  width: $offcanvas-horizontal-width;\n  border-left: $offcanvas-border-width solid $offcanvas-border-color;\n  transform: translateX(100%);\n}\n\n.offcanvas-top {\n  top: 0;\n  right: 0;\n  left: 0;\n  height: $offcanvas-vertical-height;\n  max-height: 100%;\n  border-bottom: $offcanvas-border-width solid $offcanvas-border-color;\n  transform: translateY(-100%);\n}\n\n.offcanvas-bottom {\n  right: 0;\n  left: 0;\n  height: $offcanvas-vertical-height;\n  max-height: 100%;\n  border-top: $offcanvas-border-width solid $offcanvas-border-color;\n  transform: translateY(100%);\n}\n\n.offcanvas.show {\n  transform: none;\n}\n",".placeholder {\n  display: inline-block;\n  min-height: 1em;\n  vertical-align: middle;\n  cursor: wait;\n  background-color: currentColor;\n  opacity: $placeholder-opacity-max;\n\n  &.btn::before {\n    display: inline-block;\n    content: \"\";\n  }\n}\n\n// Sizing\n.placeholder-xs {\n  min-height: .6em;\n}\n\n.placeholder-sm {\n  min-height: .8em;\n}\n\n.placeholder-lg {\n  min-height: 1.2em;\n}\n\n// Animation\n.placeholder-glow {\n  .placeholder {\n    animation: placeholder-glow 2s ease-in-out infinite;\n  }\n}\n\n@keyframes placeholder-glow {\n  50% {\n    opacity: $placeholder-opacity-min;\n  }\n}\n\n.placeholder-wave {\n  mask-image: linear-gradient(130deg, $black 55%, rgba(0, 0, 0, (1 - $placeholder-opacity-min)) 75%, $black 95%);\n  mask-size: 200% 100%;\n  animation: placeholder-wave 2s linear infinite;\n}\n\n@keyframes placeholder-wave {\n  100% {\n    mask-position: -200% 0%;\n  }\n}\n","@each $color, $value in $theme-colors {\n  .link-#{$color} {\n    color: $value;\n\n    @if $link-shade-percentage != 0 {\n      &:hover,\n      &:focus {\n        color: if(color-contrast($value) == $color-contrast-light, shade-color($value, $link-shade-percentage), tint-color($value, $link-shade-percentage));\n      }\n    }\n  }\n}\n","// Credit: Nicolas Gallagher and SUIT CSS.\n\n.ratio {\n  position: relative;\n  width: 100%;\n\n  &::before {\n    display: block;\n    padding-top: var(--#{$variable-prefix}aspect-ratio);\n    content: \"\";\n  }\n\n  > * {\n    position: absolute;\n    top: 0;\n    left: 0;\n    width: 100%;\n    height: 100%;\n  }\n}\n\n@each $key, $ratio in $aspect-ratios {\n  .ratio-#{$key} {\n    --#{$variable-prefix}aspect-ratio: #{$ratio};\n  }\n}\n","// Shorthand\n\n.fixed-top {\n  position: fixed;\n  top: 0;\n  right: 0;\n  left: 0;\n  z-index: $zindex-fixed;\n}\n\n.fixed-bottom {\n  position: fixed;\n  right: 0;\n  bottom: 0;\n  left: 0;\n  z-index: $zindex-fixed;\n}\n\n// Responsive sticky top\n@each $breakpoint in map-keys($grid-breakpoints) {\n  @include media-breakpoint-up($breakpoint) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    .sticky#{$infix}-top {\n      position: sticky;\n      top: 0;\n      z-index: $zindex-sticky;\n    }\n  }\n}\n","// scss-docs-start stacks\n.hstack {\n  display: flex;\n  flex-direction: row;\n  align-items: center;\n  align-self: stretch;\n}\n\n.vstack {\n  display: flex;\n  flex: 1 1 auto;\n  flex-direction: column;\n  align-self: stretch;\n}\n// scss-docs-end stacks\n","//\n// Visually hidden\n//\n\n.visually-hidden,\n.visually-hidden-focusable:not(:focus):not(:focus-within) {\n  @include visually-hidden();\n}\n","// stylelint-disable declaration-no-important\n\n// Hide content visually while keeping it accessible to assistive technologies\n//\n// See: https://www.a11yproject.com/posts/2013-01-11-how-to-hide-content/\n// See: https://hugogiraudel.com/2016/10/13/css-hide-and-seek/\n\n@mixin visually-hidden() {\n  position: absolute !important;\n  width: 1px !important;\n  height: 1px !important;\n  padding: 0 !important;\n  margin: -1px !important; // Fix for https://github.com/twbs/bootstrap/issues/25686\n  overflow: hidden !important;\n  clip: rect(0, 0, 0, 0) !important;\n  white-space: nowrap !important;\n  border: 0 !important;\n}\n\n// Use to only display content when it's focused, or one of its child elements is focused\n// (i.e. when focus is within the element/container that the class was applied to)\n//\n// Useful for \"Skip to main content\" links; see https://www.w3.org/TR/2013/NOTE-WCAG20-TECHS-20130905/G1\n\n@mixin visually-hidden-focusable() {\n  &:not(:focus):not(:focus-within) {\n    @include visually-hidden();\n  }\n}\n","//\n// Stretched link\n//\n\n.stretched-link {\n  &::#{$stretched-link-pseudo-element} {\n    position: absolute;\n    top: 0;\n    right: 0;\n    bottom: 0;\n    left: 0;\n    z-index: $stretched-link-z-index;\n    content: \"\";\n  }\n}\n","//\n// Text truncation\n//\n\n.text-truncate {\n  @include text-truncate();\n}\n","// Text truncate\n// Requires inline-block or block for proper styling\n\n@mixin text-truncate() {\n  overflow: hidden;\n  text-overflow: ellipsis;\n  white-space: nowrap;\n}\n",".vr {\n  display: inline-block;\n  align-self: stretch;\n  width: 1px;\n  min-height: 1em;\n  background-color: currentColor;\n  opacity: $hr-opacity;\n}\n","// Utility generator\n// Used to generate utilities & print utilities\n@mixin generate-utility($utility, $infix, $is-rfs-media-query: false) {\n  $values: map-get($utility, values);\n\n  // If the values are a list or string, convert it into a map\n  @if type-of($values) == \"string\" or type-of(nth($values, 1)) != \"list\" {\n    $values: zip($values, $values);\n  }\n\n  @each $key, $value in $values {\n    $properties: map-get($utility, property);\n\n    // Multiple properties are possible, for example with vertical or horizontal margins or paddings\n    @if type-of($properties) == \"string\" {\n      $properties: append((), $properties);\n    }\n\n    // Use custom class if present\n    $property-class: if(map-has-key($utility, class), map-get($utility, class), nth($properties, 1));\n    $property-class: if($property-class == null, \"\", $property-class);\n\n    // State params to generate pseudo-classes\n    $state: if(map-has-key($utility, state), map-get($utility, state), ());\n\n    $infix: if($property-class == \"\" and str-slice($infix, 1, 1) == \"-\", str-slice($infix, 2), $infix);\n\n    // Don't prefix if value key is null (eg. with shadow class)\n    $property-class-modifier: if($key, if($property-class == \"\" and $infix == \"\", \"\", \"-\") + $key, \"\");\n\n    @if map-get($utility, rfs) {\n      // Inside the media query\n      @if $is-rfs-media-query {\n        $val: rfs-value($value);\n\n        // Do not render anything if fluid and non fluid values are the same\n        $value: if($val == rfs-fluid-value($value), null, $val);\n      }\n      @else {\n        $value: rfs-fluid-value($value);\n      }\n    }\n\n    $is-css-var: map-get($utility, css-var);\n    $is-local-vars: map-get($utility, local-vars);\n    $is-rtl: map-get($utility, rtl);\n\n    @if $value != null {\n      @if $is-rtl == false {\n        /* rtl:begin:remove */\n      }\n\n      @if $is-css-var {\n        .#{$property-class + $infix + $property-class-modifier} {\n          --#{$variable-prefix}#{$property-class}: #{$value};\n        }\n\n        @each $pseudo in $state {\n          .#{$property-class + $infix + $property-class-modifier}-#{$pseudo}:#{$pseudo} {\n            --#{$variable-prefix}#{$property-class}: #{$value};\n          }\n        }\n      } @else {\n        .#{$property-class + $infix + $property-class-modifier} {\n          @each $property in $properties {\n            @if $is-local-vars {\n              @each $local-var, $value in $is-local-vars {\n                --#{$variable-prefix}#{$local-var}: #{$value};\n              }\n            }\n            #{$property}: $value if($enable-important-utilities, !important, null);\n          }\n        }\n\n        @each $pseudo in $state {\n          .#{$property-class + $infix + $property-class-modifier}-#{$pseudo}:#{$pseudo} {\n            @each $property in $properties {\n              #{$property}: $value if($enable-important-utilities, !important, null);\n            }\n          }\n        }\n      }\n\n      @if $is-rtl == false {\n        /* rtl:end:remove */\n      }\n    }\n  }\n}\n","// Loop over each breakpoint\n@each $breakpoint in map-keys($grid-breakpoints) {\n\n  // Generate media query if needed\n  @include media-breakpoint-up($breakpoint) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    // Loop over each utility property\n    @each $key, $utility in $utilities {\n      // The utility can be disabled with `false`, thus check if the utility is a map first\n      // Only proceed if responsive media queries are enabled or if it's the base media query\n      @if type-of($utility) == \"map\" and (map-get($utility, responsive) or $infix == \"\") {\n        @include generate-utility($utility, $infix);\n      }\n    }\n  }\n}\n\n// RFS rescaling\n@media (min-width: $rfs-mq-value) {\n  @each $breakpoint in map-keys($grid-breakpoints) {\n    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);\n\n    @if (map-get($grid-breakpoints, $breakpoint) < $rfs-breakpoint) {\n      // Loop over each utility property\n      @each $key, $utility in $utilities {\n        // The utility can be disabled with `false`, thus check if the utility is a map first\n        // Only proceed if responsive media queries are enabled or if it's the base media query\n        @if type-of($utility) == \"map\" and map-get($utility, rfs) and (map-get($utility, responsive) or $infix == \"\") {\n          @include generate-utility($utility, $infix, true);\n        }\n      }\n    }\n  }\n}\n\n\n// Print utilities\n@media print {\n  @each $key, $utility in $utilities {\n    // The utility can be disabled with `false`, thus check if the utility is a map first\n    // Then check if the utility needs print styles\n    @if type-of($utility) == \"map\" and map-get($utility, print) == true {\n      @include generate-utility($utility, \"-print\");\n    }\n  }\n}\n"]}
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/css/open-iconic/FONT-LICENSE b/Elements.Wasm/wwwroot/css/open-iconic/FONT-LICENSE
deleted file mode 100644
index 8ae8650d1..000000000
--- a/Elements.Wasm/wwwroot/css/open-iconic/FONT-LICENSE
+++ /dev/null
@@ -1,86 +0,0 @@
-SIL OPEN FONT LICENSE Version 1.1
-
-Copyright (c) 2014 Waybury
-
-PREAMBLE
-The goals of the Open Font License (OFL) are to stimulate worldwide
-development of collaborative font projects, to support the font creation
-efforts of academic and linguistic communities, and to provide a free and
-open framework in which fonts may be shared and improved in partnership
-with others.
-
-The OFL allows the licensed fonts to be used, studied, modified and
-redistributed freely as long as they are not sold by themselves. The
-fonts, including any derivative works, can be bundled, embedded,
-redistributed and/or sold with any software provided that any reserved
-names are not used by derivative works. The fonts and derivatives,
-however, cannot be released under any other type of license. The
-requirement for fonts to remain under this license does not apply
-to any document created using the fonts or their derivatives.
-
-DEFINITIONS
-"Font Software" refers to the set of files released by the Copyright
-Holder(s) under this license and clearly marked as such. This may
-include source files, build scripts and documentation.
-
-"Reserved Font Name" refers to any names specified as such after the
-copyright statement(s).
-
-"Original Version" refers to the collection of Font Software components as
-distributed by the Copyright Holder(s).
-
-"Modified Version" refers to any derivative made by adding to, deleting,
-or substituting -- in part or in whole -- any of the components of the
-Original Version, by changing formats or by porting the Font Software to a
-new environment.
-
-"Author" refers to any designer, engineer, programmer, technical
-writer or other person who contributed to the Font Software.
-
-PERMISSION & CONDITIONS
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of the Font Software, to use, study, copy, merge, embed, modify,
-redistribute, and sell modified and unmodified copies of the Font
-Software, subject to the following conditions:
-
-1) Neither the Font Software nor any of its individual components,
-in Original or Modified Versions, may be sold by itself.
-
-2) Original or Modified Versions of the Font Software may be bundled,
-redistributed and/or sold with any software, provided that each copy
-contains the above copyright notice and this license. These can be
-included either as stand-alone text files, human-readable headers or
-in the appropriate machine-readable metadata fields within text or
-binary files as long as those fields can be easily viewed by the user.
-
-3) No Modified Version of the Font Software may use the Reserved Font
-Name(s) unless explicit written permission is granted by the corresponding
-Copyright Holder. This restriction only applies to the primary font name as
-presented to the users.
-
-4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
-Software shall not be used to promote, endorse or advertise any
-Modified Version, except to acknowledge the contribution(s) of the
-Copyright Holder(s) and the Author(s) or with their explicit written
-permission.
-
-5) The Font Software, modified or unmodified, in part or in whole,
-must be distributed entirely under this license, and must not be
-distributed under any other license. The requirement for fonts to
-remain under this license does not apply to any document created
-using the Font Software.
-
-TERMINATION
-This license becomes null and void if any of the above conditions are
-not met.
-
-DISCLAIMER
-THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
-COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
-DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
-OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/Elements.Wasm/wwwroot/css/open-iconic/ICON-LICENSE b/Elements.Wasm/wwwroot/css/open-iconic/ICON-LICENSE
deleted file mode 100644
index af73356fa..000000000
--- a/Elements.Wasm/wwwroot/css/open-iconic/ICON-LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Waybury
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/css/open-iconic/README.md b/Elements.Wasm/wwwroot/css/open-iconic/README.md
deleted file mode 100644
index e2e831ed4..000000000
--- a/Elements.Wasm/wwwroot/css/open-iconic/README.md
+++ /dev/null
@@ -1,114 +0,0 @@
-[Open Iconic v1.1.1](http://useiconic.com/open)
-===========
-
-### Open Iconic is the open source sibling of [Iconic](http://useiconic.com). It is a hyper-legible collection of 223 icons with a tiny footprint&mdash;ready to use with Bootstrap and Foundation. [View the collection](http://useiconic.com/open#icons)
-
-
-
-## What's in Open Iconic?
-
-* 223 icons designed to be legible down to 8 pixels
-* Super-light SVG files - 61.8 for the entire set 
-* SVG sprite&mdash;the modern replacement for icon fonts
-* Webfont (EOT, OTF, SVG, TTF, WOFF), PNG and WebP formats
-* Webfont stylesheets (including versions for Bootstrap and Foundation) in CSS, LESS, SCSS and Stylus formats
-* PNG and WebP raster images in 8px, 16px, 24px, 32px, 48px and 64px.
-
-
-## Getting Started
-
-#### For code samples and everything else you need to get started with Open Iconic, check out our [Icons](http://useiconic.com/open#icons) and [Reference](http://useiconic.com/open#reference) sections.
-
-### General Usage
-
-#### Using Open Iconic's SVGs
-
-We like SVGs and we think they're the way to display icons on the web. Since Open Iconic are just basic SVGs, we suggest you display them like you would any other image (don't forget the `alt` attribute).
-
-```
-<img src="/open-iconic/svg/icon-name.svg" alt="icon name">
-```
-
-#### Using Open Iconic's SVG Sprite
-
-Open Iconic also comes in a SVG sprite which allows you to display all the icons in the set with a single request. It's like an icon font, without being a hack.
-
-Adding an icon from an SVG sprite is a little different than what you're used to, but it's still a piece of cake. *Tip: To make your icons easily style able, we suggest adding a general class to the* `<svg>` *tag and a unique class name for each different icon in the* `<use>` *tag.*  
-
-```
-<svg class="icon">
-  <use xlink:href="open-iconic.svg#account-login" class="icon-account-login"></use>
-</svg>
-```
-
-Sizing icons only needs basic CSS. All the icons are in a square format, so just set the `<svg>` tag with equal width and height dimensions.
-
-```
-.icon {
-  width: 16px;
-  height: 16px;
-}
-```
-
-Coloring icons is even easier. All you need to do is set the `fill` rule on the `<use>` tag.
-
-```
-.icon-account-login {
-  fill: #f00;
-}
-```
-
-To learn more about SVG Sprites, read [Chris Coyier's guide](http://css-tricks.com/svg-sprites-use-better-icon-fonts/).
-
-#### Using Open Iconic's Icon Font...
-
-
-##### …with Bootstrap
-
-You can find our Bootstrap stylesheets in `font/css/open-iconic-bootstrap.{css, less, scss, styl}`
-
-
-```
-<link href="/open-iconic/font/css/open-iconic-bootstrap.css" rel="stylesheet">
-```
-
-
-```
-<span class="oi oi-icon-name" title="icon name" aria-hidden="true"></span>
-```
-
-##### …with Foundation
-
-You can find our Foundation stylesheets in `font/css/open-iconic-foundation.{css, less, scss, styl}`
-
-```
-<link href="/open-iconic/font/css/open-iconic-foundation.css" rel="stylesheet">
-```
-
-
-```
-<span class="fi-icon-name" title="icon name" aria-hidden="true"></span>
-```
-
-##### …on its own
-
-You can find our default stylesheets in `font/css/open-iconic.{css, less, scss, styl}`
-
-```
-<link href="/open-iconic/font/css/open-iconic.css" rel="stylesheet">
-```
-
-```
-<span class="oi" data-glyph="icon-name" title="icon name" aria-hidden="true"></span>
-```
-
-
-## License
-
-### Icons
-
-All code (including SVG markup) is under the [MIT License](http://opensource.org/licenses/MIT).
-
-### Fonts
-
-All fonts are under the [SIL Licensed](http://scripts.sil.org/cms/scripts/page.php?item_id=OFL_web).
diff --git a/Elements.Wasm/wwwroot/css/open-iconic/font/css/open-iconic-bootstrap.min.css b/Elements.Wasm/wwwroot/css/open-iconic/font/css/open-iconic-bootstrap.min.css
deleted file mode 100644
index 4664f2e8c..000000000
--- a/Elements.Wasm/wwwroot/css/open-iconic/font/css/open-iconic-bootstrap.min.css
+++ /dev/null
@@ -1 +0,0 @@
-@font-face{font-family:Icons;src:url(../fonts/open-iconic.eot);src:url(../fonts/open-iconic.eot?#iconic-sm) format('embedded-opentype'),url(../fonts/open-iconic.woff) format('woff'),url(../fonts/open-iconic.ttf) format('truetype'),url(../fonts/open-iconic.otf) format('opentype'),url(../fonts/open-iconic.svg#iconic-sm) format('svg');font-weight:400;font-style:normal}.oi{position:relative;top:1px;display:inline-block;speak:none;font-family:Icons;font-style:normal;font-weight:400;line-height:1;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.oi:empty:before{width:1em;text-align:center;box-sizing:content-box}.oi.oi-align-center:before{text-align:center}.oi.oi-align-left:before{text-align:left}.oi.oi-align-right:before{text-align:right}.oi.oi-flip-horizontal:before{-webkit-transform:scale(-1,1);-ms-transform:scale(-1,1);transform:scale(-1,1)}.oi.oi-flip-vertical:before{-webkit-transform:scale(1,-1);-ms-transform:scale(-1,1);transform:scale(1,-1)}.oi.oi-flip-horizontal-vertical:before{-webkit-transform:scale(-1,-1);-ms-transform:scale(-1,1);transform:scale(-1,-1)}.oi-account-login:before{content:'\e000'}.oi-account-logout:before{content:'\e001'}.oi-action-redo:before{content:'\e002'}.oi-action-undo:before{content:'\e003'}.oi-align-center:before{content:'\e004'}.oi-align-left:before{content:'\e005'}.oi-align-right:before{content:'\e006'}.oi-aperture:before{content:'\e007'}.oi-arrow-bottom:before{content:'\e008'}.oi-arrow-circle-bottom:before{content:'\e009'}.oi-arrow-circle-left:before{content:'\e00a'}.oi-arrow-circle-right:before{content:'\e00b'}.oi-arrow-circle-top:before{content:'\e00c'}.oi-arrow-left:before{content:'\e00d'}.oi-arrow-right:before{content:'\e00e'}.oi-arrow-thick-bottom:before{content:'\e00f'}.oi-arrow-thick-left:before{content:'\e010'}.oi-arrow-thick-right:before{content:'\e011'}.oi-arrow-thick-top:before{content:'\e012'}.oi-arrow-top:before{content:'\e013'}.oi-audio-spectrum:before{content:'\e014'}.oi-audio:before{content:'\e015'}.oi-badge:before{content:'\e016'}.oi-ban:before{content:'\e017'}.oi-bar-chart:before{content:'\e018'}.oi-basket:before{content:'\e019'}.oi-battery-empty:before{content:'\e01a'}.oi-battery-full:before{content:'\e01b'}.oi-beaker:before{content:'\e01c'}.oi-bell:before{content:'\e01d'}.oi-bluetooth:before{content:'\e01e'}.oi-bold:before{content:'\e01f'}.oi-bolt:before{content:'\e020'}.oi-book:before{content:'\e021'}.oi-bookmark:before{content:'\e022'}.oi-box:before{content:'\e023'}.oi-briefcase:before{content:'\e024'}.oi-british-pound:before{content:'\e025'}.oi-browser:before{content:'\e026'}.oi-brush:before{content:'\e027'}.oi-bug:before{content:'\e028'}.oi-bullhorn:before{content:'\e029'}.oi-calculator:before{content:'\e02a'}.oi-calendar:before{content:'\e02b'}.oi-camera-slr:before{content:'\e02c'}.oi-caret-bottom:before{content:'\e02d'}.oi-caret-left:before{content:'\e02e'}.oi-caret-right:before{content:'\e02f'}.oi-caret-top:before{content:'\e030'}.oi-cart:before{content:'\e031'}.oi-chat:before{content:'\e032'}.oi-check:before{content:'\e033'}.oi-chevron-bottom:before{content:'\e034'}.oi-chevron-left:before{content:'\e035'}.oi-chevron-right:before{content:'\e036'}.oi-chevron-top:before{content:'\e037'}.oi-circle-check:before{content:'\e038'}.oi-circle-x:before{content:'\e039'}.oi-clipboard:before{content:'\e03a'}.oi-clock:before{content:'\e03b'}.oi-cloud-download:before{content:'\e03c'}.oi-cloud-upload:before{content:'\e03d'}.oi-cloud:before{content:'\e03e'}.oi-cloudy:before{content:'\e03f'}.oi-code:before{content:'\e040'}.oi-cog:before{content:'\e041'}.oi-collapse-down:before{content:'\e042'}.oi-collapse-left:before{content:'\e043'}.oi-collapse-right:before{content:'\e044'}.oi-collapse-up:before{content:'\e045'}.oi-command:before{content:'\e046'}.oi-comment-square:before{content:'\e047'}.oi-compass:before{content:'\e048'}.oi-contrast:before{content:'\e049'}.oi-copywriting:before{content:'\e04a'}.oi-credit-card:before{content:'\e04b'}.oi-crop:before{content:'\e04c'}.oi-dashboard:before{content:'\e04d'}.oi-data-transfer-download:before{content:'\e04e'}.oi-data-transfer-upload:before{content:'\e04f'}.oi-delete:before{content:'\e050'}.oi-dial:before{content:'\e051'}.oi-document:before{content:'\e052'}.oi-dollar:before{content:'\e053'}.oi-double-quote-sans-left:before{content:'\e054'}.oi-double-quote-sans-right:before{content:'\e055'}.oi-double-quote-serif-left:before{content:'\e056'}.oi-double-quote-serif-right:before{content:'\e057'}.oi-droplet:before{content:'\e058'}.oi-eject:before{content:'\e059'}.oi-elevator:before{content:'\e05a'}.oi-ellipses:before{content:'\e05b'}.oi-envelope-closed:before{content:'\e05c'}.oi-envelope-open:before{content:'\e05d'}.oi-euro:before{content:'\e05e'}.oi-excerpt:before{content:'\e05f'}.oi-expand-down:before{content:'\e060'}.oi-expand-left:before{content:'\e061'}.oi-expand-right:before{content:'\e062'}.oi-expand-up:before{content:'\e063'}.oi-external-link:before{content:'\e064'}.oi-eye:before{content:'\e065'}.oi-eyedropper:before{content:'\e066'}.oi-file:before{content:'\e067'}.oi-fire:before{content:'\e068'}.oi-flag:before{content:'\e069'}.oi-flash:before{content:'\e06a'}.oi-folder:before{content:'\e06b'}.oi-fork:before{content:'\e06c'}.oi-fullscreen-enter:before{content:'\e06d'}.oi-fullscreen-exit:before{content:'\e06e'}.oi-globe:before{content:'\e06f'}.oi-graph:before{content:'\e070'}.oi-grid-four-up:before{content:'\e071'}.oi-grid-three-up:before{content:'\e072'}.oi-grid-two-up:before{content:'\e073'}.oi-hard-drive:before{content:'\e074'}.oi-header:before{content:'\e075'}.oi-headphones:before{content:'\e076'}.oi-heart:before{content:'\e077'}.oi-home:before{content:'\e078'}.oi-image:before{content:'\e079'}.oi-inbox:before{content:'\e07a'}.oi-infinity:before{content:'\e07b'}.oi-info:before{content:'\e07c'}.oi-italic:before{content:'\e07d'}.oi-justify-center:before{content:'\e07e'}.oi-justify-left:before{content:'\e07f'}.oi-justify-right:before{content:'\e080'}.oi-key:before{content:'\e081'}.oi-laptop:before{content:'\e082'}.oi-layers:before{content:'\e083'}.oi-lightbulb:before{content:'\e084'}.oi-link-broken:before{content:'\e085'}.oi-link-intact:before{content:'\e086'}.oi-list-rich:before{content:'\e087'}.oi-list:before{content:'\e088'}.oi-location:before{content:'\e089'}.oi-lock-locked:before{content:'\e08a'}.oi-lock-unlocked:before{content:'\e08b'}.oi-loop-circular:before{content:'\e08c'}.oi-loop-square:before{content:'\e08d'}.oi-loop:before{content:'\e08e'}.oi-magnifying-glass:before{content:'\e08f'}.oi-map-marker:before{content:'\e090'}.oi-map:before{content:'\e091'}.oi-media-pause:before{content:'\e092'}.oi-media-play:before{content:'\e093'}.oi-media-record:before{content:'\e094'}.oi-media-skip-backward:before{content:'\e095'}.oi-media-skip-forward:before{content:'\e096'}.oi-media-step-backward:before{content:'\e097'}.oi-media-step-forward:before{content:'\e098'}.oi-media-stop:before{content:'\e099'}.oi-medical-cross:before{content:'\e09a'}.oi-menu:before{content:'\e09b'}.oi-microphone:before{content:'\e09c'}.oi-minus:before{content:'\e09d'}.oi-monitor:before{content:'\e09e'}.oi-moon:before{content:'\e09f'}.oi-move:before{content:'\e0a0'}.oi-musical-note:before{content:'\e0a1'}.oi-paperclip:before{content:'\e0a2'}.oi-pencil:before{content:'\e0a3'}.oi-people:before{content:'\e0a4'}.oi-person:before{content:'\e0a5'}.oi-phone:before{content:'\e0a6'}.oi-pie-chart:before{content:'\e0a7'}.oi-pin:before{content:'\e0a8'}.oi-play-circle:before{content:'\e0a9'}.oi-plus:before{content:'\e0aa'}.oi-power-standby:before{content:'\e0ab'}.oi-print:before{content:'\e0ac'}.oi-project:before{content:'\e0ad'}.oi-pulse:before{content:'\e0ae'}.oi-puzzle-piece:before{content:'\e0af'}.oi-question-mark:before{content:'\e0b0'}.oi-rain:before{content:'\e0b1'}.oi-random:before{content:'\e0b2'}.oi-reload:before{content:'\e0b3'}.oi-resize-both:before{content:'\e0b4'}.oi-resize-height:before{content:'\e0b5'}.oi-resize-width:before{content:'\e0b6'}.oi-rss-alt:before{content:'\e0b7'}.oi-rss:before{content:'\e0b8'}.oi-script:before{content:'\e0b9'}.oi-share-boxed:before{content:'\e0ba'}.oi-share:before{content:'\e0bb'}.oi-shield:before{content:'\e0bc'}.oi-signal:before{content:'\e0bd'}.oi-signpost:before{content:'\e0be'}.oi-sort-ascending:before{content:'\e0bf'}.oi-sort-descending:before{content:'\e0c0'}.oi-spreadsheet:before{content:'\e0c1'}.oi-star:before{content:'\e0c2'}.oi-sun:before{content:'\e0c3'}.oi-tablet:before{content:'\e0c4'}.oi-tag:before{content:'\e0c5'}.oi-tags:before{content:'\e0c6'}.oi-target:before{content:'\e0c7'}.oi-task:before{content:'\e0c8'}.oi-terminal:before{content:'\e0c9'}.oi-text:before{content:'\e0ca'}.oi-thumb-down:before{content:'\e0cb'}.oi-thumb-up:before{content:'\e0cc'}.oi-timer:before{content:'\e0cd'}.oi-transfer:before{content:'\e0ce'}.oi-trash:before{content:'\e0cf'}.oi-underline:before{content:'\e0d0'}.oi-vertical-align-bottom:before{content:'\e0d1'}.oi-vertical-align-center:before{content:'\e0d2'}.oi-vertical-align-top:before{content:'\e0d3'}.oi-video:before{content:'\e0d4'}.oi-volume-high:before{content:'\e0d5'}.oi-volume-low:before{content:'\e0d6'}.oi-volume-off:before{content:'\e0d7'}.oi-warning:before{content:'\e0d8'}.oi-wifi:before{content:'\e0d9'}.oi-wrench:before{content:'\e0da'}.oi-x:before{content:'\e0db'}.oi-yen:before{content:'\e0dc'}.oi-zoom-in:before{content:'\e0dd'}.oi-zoom-out:before{content:'\e0de'}
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.eot b/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.eot
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diff --git a/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.svg b/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.svg
deleted file mode 100644
index cf4294282..000000000
--- a/Elements.Wasm/wwwroot/css/open-iconic/font/fonts/open-iconic.svg
+++ /dev/null
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diff --git a/Elements.Wasm/wwwroot/favicon.ico b/Elements.Wasm/wwwroot/favicon.ico
deleted file mode 100644
index 63e859b476eff5055e0e557aaa151ca8223fbeef..0000000000000000000000000000000000000000
GIT binary patch
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diff --git a/Elements.Wasm/wwwroot/icon-192.png b/Elements.Wasm/wwwroot/icon-192.png
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GIT binary patch
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diff --git a/Elements.Wasm/wwwroot/sample-data/weather.json b/Elements.Wasm/wwwroot/sample-data/weather.json
deleted file mode 100644
index 816fdee84..000000000
--- a/Elements.Wasm/wwwroot/sample-data/weather.json
+++ /dev/null
@@ -1,27 +0,0 @@
-[
-  {
-    "date": "2018-05-06",
-    "temperatureC": 1,
-    "summary": "Freezing"
-  },
-  {
-    "date": "2018-05-07",
-    "temperatureC": 14,
-    "summary": "Bracing"
-  },
-  {
-    "date": "2018-05-08",
-    "temperatureC": -13,
-    "summary": "Freezing"
-  },
-  {
-    "date": "2018-05-09",
-    "temperatureC": -16,
-    "summary": "Balmy"
-  },
-  {
-    "date": "2018-05-10",
-    "temperatureC": -2,
-    "summary": "Chilly"
-  }
-]

From 1c41c2af72c2411f1e593684084112414891c496 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 16 Feb 2022 23:26:53 -0800
Subject: [PATCH 008/150] Razor imports not required.

---
 Elements.Wasm/_Imports.razor | 10 ----------
 1 file changed, 10 deletions(-)
 delete mode 100644 Elements.Wasm/_Imports.razor

diff --git a/Elements.Wasm/_Imports.razor b/Elements.Wasm/_Imports.razor
deleted file mode 100644
index aae8e8589..000000000
--- a/Elements.Wasm/_Imports.razor
+++ /dev/null
@@ -1,10 +0,0 @@
-@using System.Net.Http
-@using System.Net.Http.Json
-@using Microsoft.AspNetCore.Components.Forms
-@using Microsoft.AspNetCore.Components.Routing
-@using Microsoft.AspNetCore.Components.Web
-@using Microsoft.AspNetCore.Components.Web.Virtualization
-@using Microsoft.AspNetCore.Components.WebAssembly.Http
-@using Microsoft.JSInterop
-@using Elements.Wasm
-@using Elements.Wasm.Shared

From d8e7632887e8ba41619dfe13bcc99c7bcbf88572 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 16 Feb 2022 23:27:47 -0800
Subject: [PATCH 009/150] More APIs.

---
 Elements.Wasm/ElementsWrapper.cs     | 22 ++++++++++++++++++----
 Elements.Wasm/Program.cs             |  1 -
 Elements.Wasm/wwwroot/js/Elements.js |  8 ++++++--
 3 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/Elements.Wasm/ElementsWrapper.cs b/Elements.Wasm/ElementsWrapper.cs
index 53616ab41..cf67e51f8 100644
--- a/Elements.Wasm/ElementsWrapper.cs
+++ b/Elements.Wasm/ElementsWrapper.cs
@@ -5,19 +5,33 @@
 using Elements.Serialization.glTF;
 using Elements.Spatial;
 using Microsoft.JSInterop;
+using System.Diagnostics;
 
 public static class ElementsAPI
 {
     [JSInvokable]
-    public static Model ModelFromJson(string json)
+    public static Task<Model> ModelFromJson(string json)
     {
-        return Model.FromJson(json, out _, false);
+        return Task.FromResult(Model.FromJson(json, out _, false));
     }
 
     [JSInvokable]
-    public static string ModelToGlb(string json)
+    public static Task<string> ModelToGlbBase64(string json)
     {
         var model = Model.FromJson(json, out _, false);
-        return model.ToBase64String();
+        return Task.FromResult(model.ToBase64String());
+    }
+
+    [JSInvokable]
+    public static Task<byte[]> ModelToGlbBytes(string json)
+    {
+        var sw = new Stopwatch();
+        sw.Start();
+        var model = Model.FromJson(json, out _, false);
+        Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the model from json.");
+        sw.Restart();
+        var result = Task.FromResult(model.ToGlTF());
+        Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the glb from json.");
+        return result;
     }
 }
diff --git a/Elements.Wasm/Program.cs b/Elements.Wasm/Program.cs
index e4f5e1426..34026f32a 100644
--- a/Elements.Wasm/Program.cs
+++ b/Elements.Wasm/Program.cs
@@ -1,6 +1,5 @@
 using Microsoft.AspNetCore.Components.Web;
 using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
-using Elements.Wasm;
 
 var builder = WebAssemblyHostBuilder.CreateDefault(args);
 
diff --git a/Elements.Wasm/wwwroot/js/Elements.js b/Elements.Wasm/wwwroot/js/Elements.js
index 9c9d3dedb..eadd36109 100644
--- a/Elements.Wasm/wwwroot/js/Elements.js
+++ b/Elements.Wasm/wwwroot/js/Elements.js
@@ -3,8 +3,12 @@ class Elements {
         return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelFromJson', json)
     }
 
-    async modelToGlb(json) {
-        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlb', json)
+    async modelToGlbBase64(json) {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlbBase64', json)
+    }
+
+    async modelToGlbBytes(json) {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlbBytes', json)
     }
 }
 

From 6bdce9f5fdd6e9cbc49ef188ab46d761dee2c00d Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Thu, 17 Feb 2022 11:06:00 -0800
Subject: [PATCH 010/150] Create a temporary test button.

---
 Elements.Wasm/wwwroot/index.html | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index c00c639cd..514143a86 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -11,6 +11,8 @@
 <body>
     <script type="module" src="js/Elements.js"></script>
     <script src="_framework/blazor.webassembly.js"></script>
+    <button onclick="elements.modelToGlbBase64(JSON.stringify(beams)).then((model)=>{console.log(model)})"
+        type="button">Test!</button>
 </body>
 
 </html>
\ No newline at end of file

From ff4a309c44af470b2bf37e9c760d5f1f6c91f7ab Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Thu, 17 Feb 2022 11:06:15 -0800
Subject: [PATCH 011/150] Disable validation on construction.

---
 Elements.Wasm/ElementsWrapper.cs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Elements.Wasm/ElementsWrapper.cs b/Elements.Wasm/ElementsWrapper.cs
index cf67e51f8..f47f784a9 100644
--- a/Elements.Wasm/ElementsWrapper.cs
+++ b/Elements.Wasm/ElementsWrapper.cs
@@ -4,6 +4,7 @@
 using Elements.Geometry;
 using Elements.Serialization.glTF;
 using Elements.Spatial;
+using Elements.Validators;
 using Microsoft.JSInterop;
 using System.Diagnostics;
 
@@ -18,6 +19,8 @@ public static Task<Model> ModelFromJson(string json)
     [JSInvokable]
     public static Task<string> ModelToGlbBase64(string json)
     {
+        Validator.DisableValidationOnConstruction = true;
+
         var model = Model.FromJson(json, out _, false);
         return Task.FromResult(model.ToBase64String());
     }
@@ -25,10 +28,16 @@ public static Task<string> ModelToGlbBase64(string json)
     [JSInvokable]
     public static Task<byte[]> ModelToGlbBytes(string json)
     {
+        Validator.DisableValidationOnConstruction = true;
+
         var sw = new Stopwatch();
         sw.Start();
-        var model = Model.FromJson(json, out _, false);
+        var model = Model.FromJson(json, out var errors, false);
         Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the model from json.");
+        foreach (var error in errors)
+        {
+            Console.WriteLine(error);
+        }
         sw.Restart();
         var result = Task.FromResult(model.ToGlTF());
         Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the glb from json.");

From 67f83079fbc7b3cecebabbb69ffe738f8a4d94ca Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 18 Feb 2022 02:06:58 -0800
Subject: [PATCH 012/150] Progress on System.Text.Json serialization APIs.

---
 Elements/src/Elements.csproj                  |   1 +
 Elements/src/Geometry/Polygon.cs              |   1 +
 Elements/src/Geometry/Representation.cs       |   1 +
 Elements/src/Geometry/Solids/Extrude.cs       |   1 +
 Elements/src/Geometry/Solids/Lamina.cs        |   1 +
 .../src/Geometry/Solids/SolidOperation.cs     |   2 +
 Elements/src/Geometry/Solids/Sweep.cs         |   1 +
 Elements/src/Material.cs                      |   1 +
 Elements/src/Model.cs                         |  62 +++-
 Elements/src/Panel.cs                         |   4 +-
 .../JSON/JsonInheritanceConverter.cs          |   2 +-
 .../src/Serialization/JSON/ModelConverter.cs  | 294 ++++++++++++++++++
 Elements/test/Elements.Tests.csproj           |   1 +
 Elements/test/ModelTests.cs                   |   9 +
 14 files changed, 377 insertions(+), 4 deletions(-)
 create mode 100644 Elements/src/Serialization/JSON/ModelConverter.cs

diff --git a/Elements/src/Elements.csproj b/Elements/src/Elements.csproj
index 2c6151ad5..2b986c40b 100644
--- a/Elements/src/Elements.csproj
+++ b/Elements/src/Elements.csproj
@@ -22,6 +22,7 @@
     <PackageReference Include="SixLabors.ImageSharp" Version="1.0.3" />
     <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta13" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="4.6.0" />
+    <PackageReference Include="System.Text.Json" Version="6.0.2" />
     <PackageReference Include="Unofficial.LibTessDotNet" Version="2.0.0" />
   </ItemGroup>
   <ItemGroup>
diff --git a/Elements/src/Geometry/Polygon.cs b/Elements/src/Geometry/Polygon.cs
index 10249835d..ce9a006ae 100644
--- a/Elements/src/Geometry/Polygon.cs
+++ b/Elements/src/Geometry/Polygon.cs
@@ -29,6 +29,7 @@ public partial class Polygon : Polyline
         /// </summary>
         /// <param name="vertices">A collection of vertex locations.</param>
         [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public Polygon(IList<Vector3> @vertices) : base(vertices)
         {
             if (!Validator.DisableValidationOnConstruction)
diff --git a/Elements/src/Geometry/Representation.cs b/Elements/src/Geometry/Representation.cs
index ecd151dac..b6697e060 100644
--- a/Elements/src/Geometry/Representation.cs
+++ b/Elements/src/Geometry/Representation.cs
@@ -16,6 +16,7 @@ public class Representation
         /// </summary>
         /// <param name="solidOperations">A collection of solid operations.</param>
         [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public Representation(IList<SolidOperation> @solidOperations)
         {
             this.SolidOperations = @solidOperations;
diff --git a/Elements/src/Geometry/Solids/Extrude.cs b/Elements/src/Geometry/Solids/Extrude.cs
index 5ee408fb6..dadcfba5d 100644
--- a/Elements/src/Geometry/Solids/Extrude.cs
+++ b/Elements/src/Geometry/Solids/Extrude.cs
@@ -66,6 +66,7 @@ public Vector3 Direction
         /// <param name="direction"></param>
         /// <param name="isVoid"></param>
         [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public Extrude(Profile @profile, double @height, Vector3 @direction, bool @isVoid)
             : base(isVoid)
         {
diff --git a/Elements/src/Geometry/Solids/Lamina.cs b/Elements/src/Geometry/Solids/Lamina.cs
index 0d381b7c2..37dc6e834 100644
--- a/Elements/src/Geometry/Solids/Lamina.cs
+++ b/Elements/src/Geometry/Solids/Lamina.cs
@@ -49,6 +49,7 @@ public IList<Polygon> Voids
         /// <param name="voids"></param>
         /// <param name="isVoid"></param>
         [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public Lamina(Polygon @perimeter, IList<Polygon> @voids, bool @isVoid)
             : base(isVoid)
         {
diff --git a/Elements/src/Geometry/Solids/SolidOperation.cs b/Elements/src/Geometry/Solids/SolidOperation.cs
index d7d56111c..ef6fe50b0 100644
--- a/Elements/src/Geometry/Solids/SolidOperation.cs
+++ b/Elements/src/Geometry/Solids/SolidOperation.cs
@@ -19,6 +19,7 @@ public abstract class SolidOperation
         /// The solid operation's solid.
         /// </summary>
         [JsonIgnore]
+        [System.Text.Json.Serialization.JsonIgnore]
         public Solid Solid
         {
             get { return _solid; }
@@ -33,6 +34,7 @@ public Solid Solid
         /// </summary>
         /// <param name="isVoid"></param>
         [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public SolidOperation(bool @isVoid)
         {
             this.IsVoid = @isVoid;
diff --git a/Elements/src/Geometry/Solids/Sweep.cs b/Elements/src/Geometry/Solids/Sweep.cs
index 0514a2283..c3fc60aa7 100644
--- a/Elements/src/Geometry/Solids/Sweep.cs
+++ b/Elements/src/Geometry/Solids/Sweep.cs
@@ -19,6 +19,7 @@ public partial class Sweep : SolidOperation, System.ComponentModel.INotifyProper
         /// <param name="profileRotation"></param>
         /// <param name="isVoid"></param>
         [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public Sweep(Profile @profile, Curve @curve, double @startSetback, double @endSetback, double @profileRotation, bool @isVoid)
             : base(isVoid)
         {
diff --git a/Elements/src/Material.cs b/Elements/src/Material.cs
index 64e7df29a..310669a21 100644
--- a/Elements/src/Material.cs
+++ b/Elements/src/Material.cs
@@ -68,6 +68,7 @@ public class Material : Element
         /// <param name="id">The id of the material.</param>
         /// <param name="name">The name of the material.</param>
         [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public Material(Color @color, double @specularFactor, double @glossinessFactor, bool @unlit, string @texture, bool @doubleSided, bool @repeatTexture, string @normalTexture, bool @interpolateTexture, System.Guid @id = default, string @name = null)
             : base(id, name)
         {
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 3425a7fcd..b38e6dd9f 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -12,6 +12,7 @@
 using Elements.Geometry.Solids;
 using Elements.GeoJSON;
 using System.IO;
+using System.Text.Json;
 
 namespace Elements
 {
@@ -233,7 +234,7 @@ public void ToJson(string path, bool gatherSubElements = true)
             using (StreamWriter writer = new StreamWriter(s))
             using (JsonTextWriter jsonWriter = new JsonTextWriter(writer))
             {
-                var serializer = new JsonSerializer();
+                var serializer = new Newtonsoft.Json.JsonSerializer();
                 serializer.Serialize(jsonWriter, exportModel);
                 jsonWriter.Flush();
             }
@@ -272,7 +273,7 @@ public static Model FromJson(string json, out List<string> errors, bool forceTyp
                 deserializationErrors.AddRange(typeLoadErrors);
             }
 
-            var model = Newtonsoft.Json.JsonConvert.DeserializeObject<Model>(json, new JsonSerializerSettings()
+            var model = JsonConvert.DeserializeObject<Model>(json, new JsonSerializerSettings()
             {
                 Error = (sender, args) =>
                 {
@@ -290,6 +291,63 @@ public static Model FromJson(string json, bool forceTypeReload = false)
             return FromJson(json, out _, forceTypeReload);
         }
 
+        /// <summary>
+        /// Deserialize a model from JSON
+        /// </summary>
+        public string ToJsonNew()
+        {
+            var serializerOptions = new JsonSerializerOptions()
+            {
+                WriteIndented = true
+            };
+
+            var elements = new Dictionary<Guid, Element>();
+
+            var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
+
+            serializerOptions.Converters.Add(new ElementConverterFactory(elements));
+            serializerOptions.Converters.Add(new ModelConverter());
+            serializerOptions.Converters.Add(new DiscriminatorConverterFactory());
+
+            return System.Text.Json.JsonSerializer.Serialize(this, serializerOptions);
+        }
+
+        public static Model FromJsonNew(string json)
+        {
+            var elements = new Dictionary<Guid, Element>();
+            var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
+
+            var model = new Model();
+            using (var document = JsonDocument.Parse(json))
+            {
+                JsonElement root = document.RootElement;
+                var serializerOptions = new JsonSerializerOptions()
+                {
+                    WriteIndented = true,
+                    PropertyNameCaseInsensitive = true
+                };
+                JsonElement transformElement = root.GetProperty("Transform");
+                JsonElement elementsElement = root.GetProperty("Elements");
+
+                serializerOptions.Converters.Add(new ElementConverterFactory(elements, typeCache, elementsElement));
+                serializerOptions.Converters.Add(new DiscriminatorConverterFactory(typeCache));
+
+                // Set the transform
+                model.Transform = System.Text.Json.JsonSerializer.Deserialize<Transform>(transformElement.ToString(), serializerOptions);
+
+                // Create the elements
+                foreach (var elementElement in elementsElement.EnumerateObject())
+                {
+                    var discriminator = elementElement.Value.GetProperty("discriminator").GetString();
+                    var subType = PropertySerializationExtensions.GetObjectSubtype(typeof(Element), discriminator, typeCache);
+                    var element = (Element)System.Text.Json.JsonSerializer.Deserialize(elementElement.Value.ToString(), subType, serializerOptions);
+                    model.AddElement(element, false);
+                }
+            }
+
+            return model;
+        }
+
         private List<Element> RecursiveGatherSubElements(object obj)
         {
             // A dictionary created for the purpose of caching properties
diff --git a/Elements/src/Panel.cs b/Elements/src/Panel.cs
index 94b5c94c9..7edc60a77 100644
--- a/Elements/src/Panel.cs
+++ b/Elements/src/Panel.cs
@@ -2,6 +2,7 @@
 using Elements.Geometry.Solids;
 using System;
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
@@ -16,7 +17,7 @@ public class Panel : GeometricElement
         /// <summary>
         /// The perimeter of the panel.
         /// </summary>
-        public Polygon Perimeter { get; }
+        public Polygon Perimeter { get; internal set; }
 
         /// <summary>
         /// Create a panel.
@@ -29,6 +30,7 @@ public class Panel : GeometricElement
         /// <param name="id">The id of the panel.</param>
         /// <param name="name">The name of the panel.</param>
         /// <exception>Thrown when the provided perimeter points are not coplanar.</exception>
+        [JsonConstructor]
         public Panel(Polygon perimeter,
                      Material material = null,
                      Transform transform = null,
diff --git a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs b/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
index fa14a117f..d05007940 100644
--- a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
+++ b/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
@@ -68,7 +68,7 @@ public JsonInheritanceConverter(string discriminator)
         /// Elements.Serialization.JSON.JsonInheritanceConverter.
         /// </summary>
         /// <returns>A dictionary containing all found types keyed by their full name.</returns>
-        private static Dictionary<string, Type> BuildAppDomainTypeCache(out List<string> failedAssemblyErrors)
+        internal static Dictionary<string, Type> BuildAppDomainTypeCache(out List<string> failedAssemblyErrors)
         {
             var typeCache = new Dictionary<string, Type>();
 
diff --git a/Elements/src/Serialization/JSON/ModelConverter.cs b/Elements/src/Serialization/JSON/ModelConverter.cs
new file mode 100644
index 000000000..68fe64362
--- /dev/null
+++ b/Elements/src/Serialization/JSON/ModelConverter.cs
@@ -0,0 +1,294 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Elements.Geometry;
+using Elements.Geometry.Solids;
+using Elements.Spatial;
+
+namespace Elements.Serialization.JSON
+{
+    public static class PropertySerializationExtensions
+    {
+        public static void WriteProperties(this object value, Utf8JsonWriter writer, JsonSerializerOptions options)
+        {
+            writer.WriteString("discriminator", value.GetDiscriminatorName());
+
+            var pinfos = value.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
+            foreach (var pinfo in pinfos)
+            {
+                // Skip ignored properties
+                var attrib = pinfo.GetCustomAttribute<JsonIgnoreAttribute>();
+                if (attrib != null)
+                {
+                    continue;
+                }
+
+                // TODO: Use the Newtonsoft version as well.
+                var newtonIgnore = pinfo.GetCustomAttribute<Newtonsoft.Json.JsonIgnoreAttribute>();
+                if (newtonIgnore != null)
+                {
+                    continue;
+                }
+
+                writer.WritePropertyName(pinfo.Name);
+                JsonSerializer.Serialize(writer, pinfo.GetValue(value), pinfo.PropertyType, options);
+            }
+        }
+
+        private static string GetDiscriminatorName(this object value)
+        {
+            var t = value.GetType();
+            if (t.IsGenericType)
+            {
+                return $"{t.FullName.Split('`').First()}<{string.Join(",", t.GenericTypeArguments.Select(arg => arg.FullName))}>";
+            }
+            else
+            {
+                return t.FullName.Split('`').First();
+            }
+        }
+
+        public static Type GetObjectSubtype(Type objectType, string discriminator, Dictionary<string, Type> typeCache)
+        {
+            // Check the type cache.
+            if (discriminator != null && typeCache.ContainsKey(discriminator))
+            {
+                return typeCache[discriminator];
+            }
+
+            // Check for proxy generics.
+            if (discriminator != null && discriminator.StartsWith("Elements.ElementProxy<"))
+            {
+                var typeNames = discriminator.Split('<')[1].Split('>')[0].Split(','); // We do this split because in theory we can serialize with multiple generics
+                var typeName = typeNames.FirstOrDefault();
+                var generic = typeCache[typeName];
+                var proxy = typeof(ElementProxy<>).MakeGenericType(generic);
+                return proxy;
+            }
+
+            // If it's not in the type cache see if it's got a representation.
+            // Import it as a GeometricElement.
+            // if (jObject.TryGetValue("Representation", out _))
+            // {
+            //     return typeof(GeometricElement);
+            // }
+
+            // The default behavior for this converter, as provided by nJSONSchema
+            // is to return the base objectType if a derived type can't be found.
+            return objectType;
+        }
+    }
+
+    public class DiscriminatorConverterFactory : JsonConverterFactory
+    {
+        private Dictionary<string, Type> _typeCache;
+
+        public DiscriminatorConverterFactory(Dictionary<string, Type> typeCache = null)
+        {
+            _typeCache = typeCache;
+        }
+
+        public override bool CanConvert(Type typeToConvert)
+        {
+            return typeToConvert == typeof(Curve)
+                   || typeToConvert == typeof(Grid1d)
+                   || typeToConvert == typeof(Grid2d)
+                   || typeToConvert == typeof(SolidOperation);
+        }
+
+        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
+        {
+            if (typeToConvert == typeof(Curve))
+            {
+                return new DiscriminatorConverter<Curve>(_typeCache);
+            }
+            else if (typeToConvert == typeof(Grid1d))
+            {
+                return new DiscriminatorConverter<Grid1d>(_typeCache);
+            }
+            else if (typeToConvert == typeof(Grid2d))
+            {
+                return new DiscriminatorConverter<Grid2d>(_typeCache);
+            }
+            else if (typeToConvert == typeof(SolidOperation))
+            {
+                return new DiscriminatorConverter<SolidOperation>(_typeCache);
+            }
+
+            throw new JsonException("A discriminator converter could not be found.");
+        }
+    }
+
+    public class DiscriminatorConverter<TDiscriminated> : JsonConverter<TDiscriminated>
+    {
+        private Dictionary<string, Type> _typeCache;
+
+        public DiscriminatorConverter(Dictionary<string, Type> typeCache)
+        {
+            _typeCache = typeCache;
+        }
+
+        public override TDiscriminated Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+                var discriminator = root.GetProperty("discriminator").GetString();
+                var subType = _typeCache[discriminator];
+                return (TDiscriminated)JsonSerializer.Deserialize(root, subType, options);
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, TDiscriminated value, JsonSerializerOptions options)
+        {
+            writer.WriteStartObject();
+            value.WriteProperties(writer, options);
+            writer.WriteEndObject();
+        }
+    }
+
+    public class ElementConverterFactory : JsonConverterFactory
+    {
+        private Dictionary<Guid, Element> _elements;
+
+        private Dictionary<string, Type> _typeCache;
+
+        JsonElement _documentElements;
+
+        public ElementConverterFactory(Dictionary<Guid, Element> elements,
+                                        Dictionary<string, Type> typeCache = null,
+                                       JsonElement documentElements = default)
+        {
+            _elements = elements;
+            _documentElements = documentElements;
+            _typeCache = typeCache;
+        }
+
+        public override bool CanConvert(Type typeToConvert)
+        {
+            return typeof(Element).IsAssignableFrom(typeToConvert);
+        }
+
+        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
+        {
+            if (typeToConvert == typeof(Material))
+            {
+                return new ElementConverter<Material>(_elements, _typeCache, _documentElements);
+            }
+            else if (typeToConvert == typeof(Profile))
+            {
+                return new ElementConverter<Profile>(_elements, _typeCache, _documentElements);
+            }
+            else if (typeToConvert == typeof(GeometricElement))
+            {
+                return new ElementConverter<GeometricElement>(_elements, _typeCache, _documentElements);
+            }
+            else
+            {
+                return new ElementConverter<Element>(_elements, _typeCache, _documentElements);
+            }
+        }
+    }
+
+    public class ElementConverter<TElement> : JsonConverter<TElement> where TElement : Element
+    {
+        private Dictionary<Guid, Element> _elements;
+        private Dictionary<string, Type> _typeCache;
+        JsonElement _documentElements;
+
+        public ElementConverter(Dictionary<Guid, Element> elements,
+                                Dictionary<string, Type> typeCache,
+                                JsonElement documentElements)
+        {
+            _elements = elements;
+            _typeCache = typeCache;
+            _documentElements = documentElements;
+        }
+
+        public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            TElement e;
+            if (reader.TokenType == JsonTokenType.String)
+            {
+                var id = reader.GetGuid();
+                if (_elements.ContainsKey(id))
+                {
+                    Console.WriteLine($"Found element {id} already in the cache.");
+                    e = (TElement)_elements[id];
+                    return e;
+                }
+                else
+                {
+                    Console.WriteLine($"Couldn't find element {id}. Building it.");
+                    // This element hasn't been built yet.
+                    // Pause and go build it.
+                    // This may be dangerous if circular references are introduced.
+                    if (_documentElements.TryGetProperty(reader.GetString(), out var element))
+                    {
+                        e = JsonSerializer.Deserialize<TElement>(element.ToString(), options);
+                        _elements.Add(e.Id, e);
+                        return e;
+                    }
+                }
+                throw new JsonException();
+            }
+
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+                var discriminator = root.GetProperty("discriminator").GetString();
+                var subType = _typeCache[discriminator];
+                e = (TElement)JsonSerializer.Deserialize(root, subType, options);
+                _elements.Add(e.Id, e);
+                return e;
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, TElement value, JsonSerializerOptions options)
+        {
+            if (writer.CurrentDepth > 2)
+            {
+                writer.WriteStringValue(value.Id.ToString());
+            }
+            else
+            {
+                writer.WriteStartObject();
+                value.WriteProperties(writer, options);
+                writer.WriteEndObject();
+            }
+        }
+    }
+
+    public class ModelConverter : JsonConverter<Model>
+    {
+
+        public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            throw new NotImplementedException();
+        }
+
+        public override void Write(Utf8JsonWriter writer, Model value, JsonSerializerOptions options)
+        {
+            writer.WriteStartObject();
+
+            // Write the transform
+            writer.WritePropertyName("Transform");
+            JsonSerializer.Serialize(writer, value.Transform);
+
+            //Write the elements dictionary
+            writer.WritePropertyName("Elements");
+            writer.WriteStartObject();
+            foreach (var kvp in value.Elements)
+            {
+                writer.WritePropertyName(kvp.Key.ToString());
+                JsonSerializer.Serialize(writer, kvp.Value, kvp.Value.GetType(), options);
+            }
+            writer.WriteEndObject();
+
+            writer.WriteEndObject();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/test/Elements.Tests.csproj b/Elements/test/Elements.Tests.csproj
index a56a04145..8eb74774a 100644
--- a/Elements/test/Elements.Tests.csproj
+++ b/Elements/test/Elements.Tests.csproj
@@ -9,6 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.7.0" />
+    <PackageReference Include="System.Text.Json" Version="6.0.2" />
     <PackageReference Include="xunit" Version="2.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
     <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.1" />
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index c8e8b0faa..5aebd4b34 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -353,6 +353,15 @@ public void HandlesAllDocumentedSubElements()
             Assert.False(Model.IsValidForRecursiveAddition(typeof(object)));
         }
 
+        [Fact]
+        public void SerializesNew()
+        {
+            var model = QuadPanelModel();
+            var json = model.ToJsonNew();
+            _output.WriteLine(json);
+            var newModel = Model.FromJsonNew(json);
+        }
+
         private Model QuadPanelModel()
         {
             var model = new Model();

From e14d4b0a934e4bda6e09e9e91166a3fd53fb35e4 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 21 Feb 2022 07:45:38 -0800
Subject: [PATCH 013/150] Element id serialization still broken. But closer.

---
 Elements/src/GeometricElement.cs              |   2 +
 Elements/src/Model.cs                         |  20 +--
 .../src/Serialization/JSON/ModelConverter.cs  | 142 +++++++++++++-----
 3 files changed, 119 insertions(+), 45 deletions(-)

diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index 89749a507..35cd183d0 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -6,6 +6,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Interfaces;
+using Elements.Serialization.JSON;
 using Newtonsoft.Json;
 
 namespace Elements
@@ -22,6 +23,7 @@ public class GeometricElement : Element
 
         /// <summary>The element's material.</summary>
         [Newtonsoft.Json.JsonProperty("Material", Required = Newtonsoft.Json.Required.AllowNull)]
+        [System.Text.Json.Serialization.JsonConverter(typeof(ElementIdConverter<Material>))]
         public Material Material { get; set; }
 
         /// <summary>The element's representation.</summary>
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index b38e6dd9f..957369690 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -303,8 +303,6 @@ public string ToJsonNew()
 
             var elements = new Dictionary<Guid, Element>();
 
-            var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
-
             serializerOptions.Converters.Add(new ElementConverterFactory(elements));
             serializerOptions.Converters.Add(new ModelConverter());
             serializerOptions.Converters.Add(new DiscriminatorConverterFactory());
@@ -321,26 +319,30 @@ public static Model FromJsonNew(string json)
             using (var document = JsonDocument.Parse(json))
             {
                 JsonElement root = document.RootElement;
-                var serializerOptions = new JsonSerializerOptions()
+                JsonElement transformElement = root.GetProperty("Transform");
+                JsonElement elementsElement = root.GetProperty("Elements");
+
+                // Two converters are required. One that handles all element
+                // deserialization (including discriminator handling), and
+                // one that handles deserialization of types with discriminators.
+                var options = new JsonSerializerOptions()
                 {
                     WriteIndented = true,
                     PropertyNameCaseInsensitive = true
                 };
-                JsonElement transformElement = root.GetProperty("Transform");
-                JsonElement elementsElement = root.GetProperty("Elements");
 
-                serializerOptions.Converters.Add(new ElementConverterFactory(elements, typeCache, elementsElement));
-                serializerOptions.Converters.Add(new DiscriminatorConverterFactory(typeCache));
+                options.Converters.Add(new ElementConverterFactory(elements, typeCache, elementsElement));
+                options.Converters.Add(new DiscriminatorConverterFactory(typeCache));
 
                 // Set the transform
-                model.Transform = System.Text.Json.JsonSerializer.Deserialize<Transform>(transformElement.ToString(), serializerOptions);
+                model.Transform = System.Text.Json.JsonSerializer.Deserialize<Transform>(transformElement.ToString(), options);
 
                 // Create the elements
                 foreach (var elementElement in elementsElement.EnumerateObject())
                 {
                     var discriminator = elementElement.Value.GetProperty("discriminator").GetString();
                     var subType = PropertySerializationExtensions.GetObjectSubtype(typeof(Element), discriminator, typeCache);
-                    var element = (Element)System.Text.Json.JsonSerializer.Deserialize(elementElement.Value.ToString(), subType, serializerOptions);
+                    var element = (Element)System.Text.Json.JsonSerializer.Deserialize(elementElement.Value.ToString(), subType, options);
                     model.AddElement(element, false);
                 }
             }
diff --git a/Elements/src/Serialization/JSON/ModelConverter.cs b/Elements/src/Serialization/JSON/ModelConverter.cs
index 68fe64362..0eec4850d 100644
--- a/Elements/src/Serialization/JSON/ModelConverter.cs
+++ b/Elements/src/Serialization/JSON/ModelConverter.cs
@@ -51,6 +51,15 @@ private static string GetDiscriminatorName(this object value)
             }
         }
 
+        public static JsonSerializerOptions CopyAndRemoveConverter(this JsonSerializerOptions options, Type converterType)
+        {
+            var copy = new JsonSerializerOptions(options);
+            for (var i = copy.Converters.Count - 1; i >= 0; i--)
+                if (copy.Converters[i].GetType() == converterType)
+                    copy.Converters.RemoveAt(i);
+            return copy;
+        }
+
         public static Type GetObjectSubtype(Type objectType, string discriminator, Dictionary<string, Type> typeCache)
         {
             // Check the type cache.
@@ -152,14 +161,25 @@ public override void Write(Utf8JsonWriter writer, TDiscriminated value, JsonSeri
 
     public class ElementConverterFactory : JsonConverterFactory
     {
-        private Dictionary<Guid, Element> _elements;
-
-        private Dictionary<string, Type> _typeCache;
-
-        JsonElement _documentElements;
-
+        private readonly Dictionary<Guid, Element> _elements;
+
+        private readonly Dictionary<string, Type> _typeCache;
+
+        /// <summary>
+        /// An element representing the Elements property on the 
+        /// model object being deserialized. This is used to do 
+        /// forward-looking deserialization of nested references.
+        /// </summary>
+        private readonly JsonElement _documentElements;
+
+        /// <summary>
+        /// Construct an element converter factory.
+        /// </summary>
+        /// <param name="elements">A cache of elements.</param>
+        /// <param name="typeCache">A cache of types.</param>
+        /// <param name="documentElements">The elements node of a model being deserialized.</param>
         public ElementConverterFactory(Dictionary<Guid, Element> elements,
-                                        Dictionary<string, Type> typeCache = null,
+                                       Dictionary<string, Type> typeCache = null,
                                        JsonElement documentElements = default)
         {
             _elements = elements;
@@ -193,11 +213,44 @@ public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializer
         }
     }
 
+    public class ElementIdConverter<TElement> : JsonConverter<TElement> where TElement : Element
+    {
+        private readonly Dictionary<Guid, Element> _elements;
+
+        public ElementIdConverter()
+        {
+            _elements = new Dictionary<Guid, Element>();
+        }
+
+        public ElementIdConverter(Dictionary<Guid, Element> elements)
+        {
+            _elements = elements;
+        }
+
+        public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            var id = reader.GetGuid();
+            if (_elements.ContainsKey(id))
+            {
+                return (TElement)_elements[id];
+            }
+            else
+            {
+                return null;
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, TElement value, JsonSerializerOptions options)
+        {
+            writer.WriteStringValue(value.Id.ToString());
+        }
+    }
+
     public class ElementConverter<TElement> : JsonConverter<TElement> where TElement : Element
     {
-        private Dictionary<Guid, Element> _elements;
-        private Dictionary<string, Type> _typeCache;
-        JsonElement _documentElements;
+        private readonly Dictionary<Guid, Element> _elements;
+        private readonly Dictionary<string, Type> _typeCache;
+        private readonly JsonElement _documentElements;
 
         public ElementConverter(Dictionary<Guid, Element> elements,
                                 Dictionary<string, Type> typeCache,
@@ -210,38 +263,55 @@ public ElementConverter(Dictionary<Guid, Element> elements,
 
         public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            TElement e;
-            if (reader.TokenType == JsonTokenType.String)
+            using (var doc = JsonDocument.ParseValue(ref reader))
             {
-                var id = reader.GetGuid();
-                if (_elements.ContainsKey(id))
-                {
-                    Console.WriteLine($"Found element {id} already in the cache.");
-                    e = (TElement)_elements[id];
-                    return e;
-                }
-                else
+                var root = doc.RootElement;
+
+                var discriminator = root.GetProperty("discriminator").GetString();
+                var subType = _typeCache[discriminator];
+
+                // Use the type info to get all properties which are Element
+                // references, and deserialize those first.
+
+                // TODO: This *should* support serialization of elements in
+                // any order, removing the requirement to do any kind of recursive
+                // sub-element searching. We can remove that code from the model.
+                var elementProperties = subType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => typeof(Element).IsAssignableFrom(p.PropertyType));
+                foreach (var elementProperty in elementProperties)
                 {
-                    Console.WriteLine($"Couldn't find element {id}. Building it.");
-                    // This element hasn't been built yet.
-                    // Pause and go build it.
-                    // This may be dangerous if circular references are introduced.
-                    if (_documentElements.TryGetProperty(reader.GetString(), out var element))
+                    var prop = root.GetProperty(elementProperty.Name);
+                    if (prop.TryGetGuid(out var referencedId))
                     {
-                        e = JsonSerializer.Deserialize<TElement>(element.ToString(), options);
-                        _elements.Add(e.Id, e);
-                        return e;
+                        if (_elements.ContainsKey(referencedId))
+                        {
+                            continue;
+                        }
+
+                        if (_documentElements.TryGetProperty(referencedId.ToString(), out var propertyBody))
+                        {
+                            if (propertyBody.TryGetProperty("discriminator", out var elementBody))
+                            {
+                                var referencedElement = (Element)prop.Deserialize(elementProperty.PropertyType);
+                                _elements[referencedId] = referencedElement;
+                            }
+                        }
+                        else
+                        {
+                            // The reference cannot be found. It's either not 
+                            // a direct reference, as in the case of a cross-model
+                            // reference, or it's just broken. 
+                            _elements[referencedId] = null;
+                        }
                     }
                 }
-                throw new JsonException();
-            }
 
-            using (var doc = JsonDocument.ParseValue(ref reader))
-            {
-                var root = doc.RootElement;
-                var discriminator = root.GetProperty("discriminator").GetString();
-                var subType = _typeCache[discriminator];
-                e = (TElement)JsonSerializer.Deserialize(root, subType, options);
+                // Deserialize without further specifying the converter to avoid an infinite loop.
+                var o = new JsonSerializerOptions()
+                {
+                    PropertyNameCaseInsensitive = true
+                };
+                o.Converters.Add(new DiscriminatorConverterFactory(_typeCache));
+                TElement e = (TElement)root.Deserialize(subType, o);
                 _elements.Add(e.Id, e);
                 return e;
             }

From a7feb353b72e3abd3533ec22b4aad5f05d1d145c Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 21 Feb 2022 16:32:44 -0800
Subject: [PATCH 014/150] Refactoring into files.

---
 Elements/src/GeometricElement.cs              |   1 -
 Elements/src/Model.cs                         |   6 +-
 .../JSON/DiscriminatorConverter.cs            |  78 +++++
 .../Serialization/JSON/ElementConverter.cs    | 152 ++++++++
 .../Serialization/JSON/ElementIdConverter.cs  |  64 ++++
 .../src/Serialization/JSON/ModelConverter.cs  | 330 +-----------------
 .../JSON/PropertySerializationExtensions.cs   |  90 +++++
 7 files changed, 388 insertions(+), 333 deletions(-)
 create mode 100644 Elements/src/Serialization/JSON/DiscriminatorConverter.cs
 create mode 100644 Elements/src/Serialization/JSON/ElementConverter.cs
 create mode 100644 Elements/src/Serialization/JSON/ElementIdConverter.cs
 create mode 100644 Elements/src/Serialization/JSON/PropertySerializationExtensions.cs

diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index 35cd183d0..27f33d57c 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -23,7 +23,6 @@ public class GeometricElement : Element
 
         /// <summary>The element's material.</summary>
         [Newtonsoft.Json.JsonProperty("Material", Required = Newtonsoft.Json.Required.AllowNull)]
-        [System.Text.Json.Serialization.JsonConverter(typeof(ElementIdConverter<Material>))]
         public Material Material { get; set; }
 
         /// <summary>The element's representation.</summary>
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 957369690..399f79e43 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -322,15 +322,15 @@ public static Model FromJsonNew(string json)
                 JsonElement transformElement = root.GetProperty("Transform");
                 JsonElement elementsElement = root.GetProperty("Elements");
 
-                // Two converters are required. One that handles all element
-                // deserialization (including discriminator handling), and
-                // one that handles deserialization of types with discriminators.
                 var options = new JsonSerializerOptions()
                 {
                     WriteIndented = true,
                     PropertyNameCaseInsensitive = true
                 };
 
+                // Two converters are required. One that handles all element
+                // deserialization (including discriminator handling), and
+                // one that handles only deserialization of types with discriminators.
                 options.Converters.Add(new ElementConverterFactory(elements, typeCache, elementsElement));
                 options.Converters.Add(new DiscriminatorConverterFactory(typeCache));
 
diff --git a/Elements/src/Serialization/JSON/DiscriminatorConverter.cs b/Elements/src/Serialization/JSON/DiscriminatorConverter.cs
new file mode 100644
index 000000000..fa0f3df24
--- /dev/null
+++ b/Elements/src/Serialization/JSON/DiscriminatorConverter.cs
@@ -0,0 +1,78 @@
+using System;
+using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Elements.Geometry;
+using Elements.Geometry.Solids;
+using Elements.Spatial;
+
+namespace Elements.Serialization.JSON
+{
+    internal class DiscriminatorConverterFactory : JsonConverterFactory
+    {
+        private readonly Dictionary<string, Type> _typeCache;
+
+        public DiscriminatorConverterFactory(Dictionary<string, Type> typeCache = null)
+        {
+            _typeCache = typeCache;
+        }
+
+        public override bool CanConvert(Type typeToConvert)
+        {
+            return typeToConvert == typeof(Curve)
+                   || typeToConvert == typeof(Grid1d)
+                   || typeToConvert == typeof(Grid2d)
+                   || typeToConvert == typeof(SolidOperation);
+        }
+
+        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
+        {
+            if (typeToConvert == typeof(Curve))
+            {
+                return new DiscriminatorConverter<Curve>(_typeCache);
+            }
+            else if (typeToConvert == typeof(Grid1d))
+            {
+                return new DiscriminatorConverter<Grid1d>(_typeCache);
+            }
+            else if (typeToConvert == typeof(Grid2d))
+            {
+                return new DiscriminatorConverter<Grid2d>(_typeCache);
+            }
+            else if (typeToConvert == typeof(SolidOperation))
+            {
+                return new DiscriminatorConverter<SolidOperation>(_typeCache);
+            }
+
+            throw new JsonException("A discriminator converter could not be found.");
+        }
+    }
+
+    internal class DiscriminatorConverter<TDiscriminated> : JsonConverter<TDiscriminated>
+    {
+        private Dictionary<string, Type> _typeCache;
+
+        public DiscriminatorConverter(Dictionary<string, Type> typeCache)
+        {
+            _typeCache = typeCache;
+        }
+
+        public override TDiscriminated Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+                var discriminator = root.GetProperty("discriminator").GetString();
+                var subType = _typeCache[discriminator];
+                return (TDiscriminated)JsonSerializer.Deserialize(root, subType, options);
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, TDiscriminated value, JsonSerializerOptions options)
+        {
+            writer.WriteStartObject();
+            value.WriteProperties(writer, options);
+            writer.WriteEndObject();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
new file mode 100644
index 000000000..7dd289f39
--- /dev/null
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -0,0 +1,152 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Elements.Geometry;
+
+namespace Elements.Serialization.JSON
+{
+    internal class ElementConverterFactory : JsonConverterFactory
+    {
+        private readonly Dictionary<Guid, Element> _elements;
+
+        private readonly Dictionary<string, Type> _typeCache;
+
+        /// <summary>
+        /// An element representing the Elements property on the 
+        /// model object being deserialized. This is used to do 
+        /// forward-looking deserialization of nested references.
+        /// </summary>
+        private readonly JsonElement _documentElements;
+
+        /// <summary>
+        /// Construct an element converter factory.
+        /// </summary>
+        /// <param name="elements">A cache of elements.</param>
+        /// <param name="typeCache">A cache of types.</param>
+        /// <param name="documentElements">The elements node of a model being deserialized.</param>
+        public ElementConverterFactory(Dictionary<Guid, Element> elements,
+                                       Dictionary<string, Type> typeCache = null,
+                                       JsonElement documentElements = default)
+        {
+            _elements = elements;
+            _documentElements = documentElements;
+            _typeCache = typeCache;
+        }
+
+        public override bool CanConvert(Type typeToConvert)
+        {
+            return typeof(Element).IsAssignableFrom(typeToConvert);
+        }
+
+        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
+        {
+            if (typeToConvert == typeof(Material))
+            {
+                return new ElementConverter<Material>(_elements, _typeCache, _documentElements);
+            }
+            else if (typeToConvert == typeof(Profile))
+            {
+                return new ElementConverter<Profile>(_elements, _typeCache, _documentElements);
+            }
+            else if (typeToConvert == typeof(GeometricElement))
+            {
+                return new ElementConverter<GeometricElement>(_elements, _typeCache, _documentElements);
+            }
+            else
+            {
+                return new ElementConverter<Element>(_elements, _typeCache, _documentElements);
+            }
+        }
+    }
+
+    internal class ElementConverter<TElement> : JsonConverter<TElement> where TElement : Element
+    {
+        private readonly Dictionary<Guid, Element> _elements;
+        private readonly Dictionary<string, Type> _typeCache;
+        private readonly JsonElement _documentElements;
+
+        public ElementConverter(Dictionary<Guid, Element> elements,
+                                Dictionary<string, Type> typeCache,
+                                JsonElement documentElements)
+        {
+            _elements = elements;
+            _typeCache = typeCache;
+            _documentElements = documentElements;
+        }
+
+        public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+
+                var discriminator = root.GetProperty("discriminator").GetString();
+                var subType = _typeCache[discriminator];
+
+                // Use the type info to get all properties which are Element
+                // references, and deserialize those first.
+
+                // TODO: This *should* support serialization of elements in
+                // any order, removing the requirement to do any kind of recursive
+                // sub-element searching. We can remove that code from the model.
+                var elementProperties = subType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => typeof(Element).IsAssignableFrom(p.PropertyType));
+                foreach (var elementProperty in elementProperties)
+                {
+                    var prop = root.GetProperty(elementProperty.Name);
+                    if (prop.TryGetGuid(out var referencedId))
+                    {
+                        if (_elements.ContainsKey(referencedId))
+                        {
+                            continue;
+                        }
+
+                        if (_documentElements.TryGetProperty(referencedId.ToString(), out var propertyBody))
+                        {
+                            if (propertyBody.TryGetProperty("discriminator", out var elementBody))
+                            {
+                                var referencedElement = (Element)prop.Deserialize(elementProperty.PropertyType);
+                                _elements[referencedId] = referencedElement;
+                            }
+                        }
+                        else
+                        {
+                            // The reference cannot be found. It's either not 
+                            // a direct reference, as in the case of a cross-model
+                            // reference, or it's just broken. 
+                            _elements[referencedId] = null;
+                        }
+                    }
+                }
+
+                // Deserialize without further specifying the converter to avoid an infinite loop.
+                var o = new JsonSerializerOptions()
+                {
+                    PropertyNameCaseInsensitive = true
+                };
+                // Reuse the existing discriminator factory converter.
+                o.Converters.Add(options.Converters.First(c => c.GetType() == typeof(DiscriminatorConverterFactory)));
+                o.Converters.Add(new ElementIdConverterFactory(_elements));
+                TElement e = (TElement)root.Deserialize(subType, o);
+                _elements.Add(e.Id, e);
+                return e;
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, TElement value, JsonSerializerOptions options)
+        {
+            if (writer.CurrentDepth > 2)
+            {
+                writer.WriteStringValue(value.Id.ToString());
+            }
+            else
+            {
+                writer.WriteStartObject();
+                value.WriteProperties(writer, options);
+                writer.WriteEndObject();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/ElementIdConverter.cs b/Elements/src/Serialization/JSON/ElementIdConverter.cs
new file mode 100644
index 000000000..c88176ef0
--- /dev/null
+++ b/Elements/src/Serialization/JSON/ElementIdConverter.cs
@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Elements.Serialization.JSON
+{
+    internal class ElementIdConverterFactory : JsonConverterFactory
+    {
+        private readonly Dictionary<Guid, Element> _elements;
+
+        public ElementIdConverterFactory(Dictionary<Guid, Element> elements)
+        {
+            _elements = elements;
+        }
+
+        public override bool CanConvert(Type typeToConvert)
+        {
+            return typeof(Element).IsAssignableFrom(typeToConvert);
+        }
+
+        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
+        {
+            var elementIdConverterType = typeof(ElementIdConverter<>);
+            var typeArgs = new[] { typeToConvert };
+            var converterType = elementIdConverterType.MakeGenericType(typeArgs);
+            var converter = Activator.CreateInstance(converterType, new[] { _elements }) as JsonConverter;
+            return converter;
+        }
+    }
+
+    internal class ElementIdConverter<TElement> : JsonConverter<TElement> where TElement : Element
+    {
+        private readonly Dictionary<Guid, Element> _elements;
+
+        public ElementIdConverter()
+        {
+            _elements = new Dictionary<Guid, Element>();
+        }
+
+        public ElementIdConverter(Dictionary<Guid, Element> elements)
+        {
+            _elements = elements;
+        }
+
+        public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            var id = reader.GetGuid();
+            if (_elements.ContainsKey(id))
+            {
+                return (TElement)_elements[id];
+            }
+            else
+            {
+                return null;
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, TElement value, JsonSerializerOptions options)
+        {
+            writer.WriteStringValue(value.Id.ToString());
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/ModelConverter.cs b/Elements/src/Serialization/JSON/ModelConverter.cs
index 0eec4850d..e120e7b69 100644
--- a/Elements/src/Serialization/JSON/ModelConverter.cs
+++ b/Elements/src/Serialization/JSON/ModelConverter.cs
@@ -1,338 +1,10 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
 using System.Text.Json;
 using System.Text.Json.Serialization;
-using Elements.Geometry;
-using Elements.Geometry.Solids;
-using Elements.Spatial;
 
 namespace Elements.Serialization.JSON
 {
-    public static class PropertySerializationExtensions
-    {
-        public static void WriteProperties(this object value, Utf8JsonWriter writer, JsonSerializerOptions options)
-        {
-            writer.WriteString("discriminator", value.GetDiscriminatorName());
-
-            var pinfos = value.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
-            foreach (var pinfo in pinfos)
-            {
-                // Skip ignored properties
-                var attrib = pinfo.GetCustomAttribute<JsonIgnoreAttribute>();
-                if (attrib != null)
-                {
-                    continue;
-                }
-
-                // TODO: Use the Newtonsoft version as well.
-                var newtonIgnore = pinfo.GetCustomAttribute<Newtonsoft.Json.JsonIgnoreAttribute>();
-                if (newtonIgnore != null)
-                {
-                    continue;
-                }
-
-                writer.WritePropertyName(pinfo.Name);
-                JsonSerializer.Serialize(writer, pinfo.GetValue(value), pinfo.PropertyType, options);
-            }
-        }
-
-        private static string GetDiscriminatorName(this object value)
-        {
-            var t = value.GetType();
-            if (t.IsGenericType)
-            {
-                return $"{t.FullName.Split('`').First()}<{string.Join(",", t.GenericTypeArguments.Select(arg => arg.FullName))}>";
-            }
-            else
-            {
-                return t.FullName.Split('`').First();
-            }
-        }
-
-        public static JsonSerializerOptions CopyAndRemoveConverter(this JsonSerializerOptions options, Type converterType)
-        {
-            var copy = new JsonSerializerOptions(options);
-            for (var i = copy.Converters.Count - 1; i >= 0; i--)
-                if (copy.Converters[i].GetType() == converterType)
-                    copy.Converters.RemoveAt(i);
-            return copy;
-        }
-
-        public static Type GetObjectSubtype(Type objectType, string discriminator, Dictionary<string, Type> typeCache)
-        {
-            // Check the type cache.
-            if (discriminator != null && typeCache.ContainsKey(discriminator))
-            {
-                return typeCache[discriminator];
-            }
-
-            // Check for proxy generics.
-            if (discriminator != null && discriminator.StartsWith("Elements.ElementProxy<"))
-            {
-                var typeNames = discriminator.Split('<')[1].Split('>')[0].Split(','); // We do this split because in theory we can serialize with multiple generics
-                var typeName = typeNames.FirstOrDefault();
-                var generic = typeCache[typeName];
-                var proxy = typeof(ElementProxy<>).MakeGenericType(generic);
-                return proxy;
-            }
-
-            // If it's not in the type cache see if it's got a representation.
-            // Import it as a GeometricElement.
-            // if (jObject.TryGetValue("Representation", out _))
-            // {
-            //     return typeof(GeometricElement);
-            // }
-
-            // The default behavior for this converter, as provided by nJSONSchema
-            // is to return the base objectType if a derived type can't be found.
-            return objectType;
-        }
-    }
-
-    public class DiscriminatorConverterFactory : JsonConverterFactory
-    {
-        private Dictionary<string, Type> _typeCache;
-
-        public DiscriminatorConverterFactory(Dictionary<string, Type> typeCache = null)
-        {
-            _typeCache = typeCache;
-        }
-
-        public override bool CanConvert(Type typeToConvert)
-        {
-            return typeToConvert == typeof(Curve)
-                   || typeToConvert == typeof(Grid1d)
-                   || typeToConvert == typeof(Grid2d)
-                   || typeToConvert == typeof(SolidOperation);
-        }
-
-        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
-        {
-            if (typeToConvert == typeof(Curve))
-            {
-                return new DiscriminatorConverter<Curve>(_typeCache);
-            }
-            else if (typeToConvert == typeof(Grid1d))
-            {
-                return new DiscriminatorConverter<Grid1d>(_typeCache);
-            }
-            else if (typeToConvert == typeof(Grid2d))
-            {
-                return new DiscriminatorConverter<Grid2d>(_typeCache);
-            }
-            else if (typeToConvert == typeof(SolidOperation))
-            {
-                return new DiscriminatorConverter<SolidOperation>(_typeCache);
-            }
-
-            throw new JsonException("A discriminator converter could not be found.");
-        }
-    }
-
-    public class DiscriminatorConverter<TDiscriminated> : JsonConverter<TDiscriminated>
-    {
-        private Dictionary<string, Type> _typeCache;
-
-        public DiscriminatorConverter(Dictionary<string, Type> typeCache)
-        {
-            _typeCache = typeCache;
-        }
-
-        public override TDiscriminated Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        {
-            using (var doc = JsonDocument.ParseValue(ref reader))
-            {
-                var root = doc.RootElement;
-                var discriminator = root.GetProperty("discriminator").GetString();
-                var subType = _typeCache[discriminator];
-                return (TDiscriminated)JsonSerializer.Deserialize(root, subType, options);
-            }
-        }
-
-        public override void Write(Utf8JsonWriter writer, TDiscriminated value, JsonSerializerOptions options)
-        {
-            writer.WriteStartObject();
-            value.WriteProperties(writer, options);
-            writer.WriteEndObject();
-        }
-    }
-
-    public class ElementConverterFactory : JsonConverterFactory
-    {
-        private readonly Dictionary<Guid, Element> _elements;
-
-        private readonly Dictionary<string, Type> _typeCache;
-
-        /// <summary>
-        /// An element representing the Elements property on the 
-        /// model object being deserialized. This is used to do 
-        /// forward-looking deserialization of nested references.
-        /// </summary>
-        private readonly JsonElement _documentElements;
-
-        /// <summary>
-        /// Construct an element converter factory.
-        /// </summary>
-        /// <param name="elements">A cache of elements.</param>
-        /// <param name="typeCache">A cache of types.</param>
-        /// <param name="documentElements">The elements node of a model being deserialized.</param>
-        public ElementConverterFactory(Dictionary<Guid, Element> elements,
-                                       Dictionary<string, Type> typeCache = null,
-                                       JsonElement documentElements = default)
-        {
-            _elements = elements;
-            _documentElements = documentElements;
-            _typeCache = typeCache;
-        }
-
-        public override bool CanConvert(Type typeToConvert)
-        {
-            return typeof(Element).IsAssignableFrom(typeToConvert);
-        }
-
-        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
-        {
-            if (typeToConvert == typeof(Material))
-            {
-                return new ElementConverter<Material>(_elements, _typeCache, _documentElements);
-            }
-            else if (typeToConvert == typeof(Profile))
-            {
-                return new ElementConverter<Profile>(_elements, _typeCache, _documentElements);
-            }
-            else if (typeToConvert == typeof(GeometricElement))
-            {
-                return new ElementConverter<GeometricElement>(_elements, _typeCache, _documentElements);
-            }
-            else
-            {
-                return new ElementConverter<Element>(_elements, _typeCache, _documentElements);
-            }
-        }
-    }
-
-    public class ElementIdConverter<TElement> : JsonConverter<TElement> where TElement : Element
-    {
-        private readonly Dictionary<Guid, Element> _elements;
-
-        public ElementIdConverter()
-        {
-            _elements = new Dictionary<Guid, Element>();
-        }
-
-        public ElementIdConverter(Dictionary<Guid, Element> elements)
-        {
-            _elements = elements;
-        }
-
-        public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        {
-            var id = reader.GetGuid();
-            if (_elements.ContainsKey(id))
-            {
-                return (TElement)_elements[id];
-            }
-            else
-            {
-                return null;
-            }
-        }
-
-        public override void Write(Utf8JsonWriter writer, TElement value, JsonSerializerOptions options)
-        {
-            writer.WriteStringValue(value.Id.ToString());
-        }
-    }
-
-    public class ElementConverter<TElement> : JsonConverter<TElement> where TElement : Element
-    {
-        private readonly Dictionary<Guid, Element> _elements;
-        private readonly Dictionary<string, Type> _typeCache;
-        private readonly JsonElement _documentElements;
-
-        public ElementConverter(Dictionary<Guid, Element> elements,
-                                Dictionary<string, Type> typeCache,
-                                JsonElement documentElements)
-        {
-            _elements = elements;
-            _typeCache = typeCache;
-            _documentElements = documentElements;
-        }
-
-        public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        {
-            using (var doc = JsonDocument.ParseValue(ref reader))
-            {
-                var root = doc.RootElement;
-
-                var discriminator = root.GetProperty("discriminator").GetString();
-                var subType = _typeCache[discriminator];
-
-                // Use the type info to get all properties which are Element
-                // references, and deserialize those first.
-
-                // TODO: This *should* support serialization of elements in
-                // any order, removing the requirement to do any kind of recursive
-                // sub-element searching. We can remove that code from the model.
-                var elementProperties = subType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => typeof(Element).IsAssignableFrom(p.PropertyType));
-                foreach (var elementProperty in elementProperties)
-                {
-                    var prop = root.GetProperty(elementProperty.Name);
-                    if (prop.TryGetGuid(out var referencedId))
-                    {
-                        if (_elements.ContainsKey(referencedId))
-                        {
-                            continue;
-                        }
-
-                        if (_documentElements.TryGetProperty(referencedId.ToString(), out var propertyBody))
-                        {
-                            if (propertyBody.TryGetProperty("discriminator", out var elementBody))
-                            {
-                                var referencedElement = (Element)prop.Deserialize(elementProperty.PropertyType);
-                                _elements[referencedId] = referencedElement;
-                            }
-                        }
-                        else
-                        {
-                            // The reference cannot be found. It's either not 
-                            // a direct reference, as in the case of a cross-model
-                            // reference, or it's just broken. 
-                            _elements[referencedId] = null;
-                        }
-                    }
-                }
-
-                // Deserialize without further specifying the converter to avoid an infinite loop.
-                var o = new JsonSerializerOptions()
-                {
-                    PropertyNameCaseInsensitive = true
-                };
-                o.Converters.Add(new DiscriminatorConverterFactory(_typeCache));
-                TElement e = (TElement)root.Deserialize(subType, o);
-                _elements.Add(e.Id, e);
-                return e;
-            }
-        }
-
-        public override void Write(Utf8JsonWriter writer, TElement value, JsonSerializerOptions options)
-        {
-            if (writer.CurrentDepth > 2)
-            {
-                writer.WriteStringValue(value.Id.ToString());
-            }
-            else
-            {
-                writer.WriteStartObject();
-                value.WriteProperties(writer, options);
-                writer.WriteEndObject();
-            }
-        }
-    }
-
-    public class ModelConverter : JsonConverter<Model>
+    internal class ModelConverter : JsonConverter<Model>
     {
 
         public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
diff --git a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
new file mode 100644
index 000000000..f82364dd6
--- /dev/null
+++ b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
@@ -0,0 +1,90 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Elements.Serialization.JSON
+{
+    internal static class PropertySerializationExtensions
+    {
+        public static void WriteProperties(this object value, Utf8JsonWriter writer, JsonSerializerOptions options)
+        {
+            writer.WriteString("discriminator", value.GetDiscriminatorName());
+
+            var pinfos = value.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
+            foreach (var pinfo in pinfos)
+            {
+                // Skip ignored properties
+                var attrib = pinfo.GetCustomAttribute<JsonIgnoreAttribute>();
+                if (attrib != null)
+                {
+                    continue;
+                }
+
+                // TODO: Use the Newtonsoft version as well.
+                var newtonIgnore = pinfo.GetCustomAttribute<Newtonsoft.Json.JsonIgnoreAttribute>();
+                if (newtonIgnore != null)
+                {
+                    continue;
+                }
+
+                writer.WritePropertyName(pinfo.Name);
+                JsonSerializer.Serialize(writer, pinfo.GetValue(value), pinfo.PropertyType, options);
+            }
+        }
+
+        private static string GetDiscriminatorName(this object value)
+        {
+            var t = value.GetType();
+            if (t.IsGenericType)
+            {
+                return $"{t.FullName.Split('`').First()}<{string.Join(",", t.GenericTypeArguments.Select(arg => arg.FullName))}>";
+            }
+            else
+            {
+                return t.FullName.Split('`').First();
+            }
+        }
+
+        public static JsonSerializerOptions CopyAndRemoveConverter(this JsonSerializerOptions options, Type converterType)
+        {
+            var copy = new JsonSerializerOptions(options);
+            for (var i = copy.Converters.Count - 1; i >= 0; i--)
+                if (copy.Converters[i].GetType() == converterType)
+                    copy.Converters.RemoveAt(i);
+            return copy;
+        }
+
+        public static Type GetObjectSubtype(Type objectType, string discriminator, Dictionary<string, Type> typeCache)
+        {
+            // Check the type cache.
+            if (discriminator != null && typeCache.ContainsKey(discriminator))
+            {
+                return typeCache[discriminator];
+            }
+
+            // Check for proxy generics.
+            if (discriminator != null && discriminator.StartsWith("Elements.ElementProxy<"))
+            {
+                var typeNames = discriminator.Split('<')[1].Split('>')[0].Split(','); // We do this split because in theory we can serialize with multiple generics
+                var typeName = typeNames.FirstOrDefault();
+                var generic = typeCache[typeName];
+                var proxy = typeof(ElementProxy<>).MakeGenericType(generic);
+                return proxy;
+            }
+
+            // If it's not in the type cache see if it's got a representation.
+            // Import it as a GeometricElement.
+            // if (jObject.TryGetValue("Representation", out _))
+            // {
+            //     return typeof(GeometricElement);
+            // }
+
+            // The default behavior for this converter, as provided by nJSONSchema
+            // is to return the base objectType if a derived type can't be found.
+            return objectType;
+        }
+    }
+}
\ No newline at end of file

From e5305a02c996685f6c0bdbd90c877041f0521662 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 21 Feb 2022 17:23:28 -0800
Subject: [PATCH 015/150] Add reference resolver.

---
 Elements/src/GeometricElement.cs              |  1 +
 Elements/src/Model.cs                         | 18 +++--
 .../Serialization/JSON/ElementConverter.cs    | 40 +++++-----
 .../Serialization/JSON/ElementIdConverter.cs  | 20 ++---
 .../JSON/ElementReferenceResolver.cs          | 77 +++++++++++++++++++
 5 files changed, 120 insertions(+), 36 deletions(-)
 create mode 100644 Elements/src/Serialization/JSON/ElementReferenceResolver.cs

diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index 27f33d57c..35cd183d0 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -23,6 +23,7 @@ public class GeometricElement : Element
 
         /// <summary>The element's material.</summary>
         [Newtonsoft.Json.JsonProperty("Material", Required = Newtonsoft.Json.Required.AllowNull)]
+        [System.Text.Json.Serialization.JsonConverter(typeof(ElementIdConverter<Material>))]
         public Material Material { get; set; }
 
         /// <summary>The element's representation.</summary>
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 399f79e43..a2387c68b 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -301,9 +301,7 @@ public string ToJsonNew()
                 WriteIndented = true
             };
 
-            var elements = new Dictionary<Guid, Element>();
-
-            serializerOptions.Converters.Add(new ElementConverterFactory(elements));
+            serializerOptions.Converters.Add(new ElementConverterFactory());
             serializerOptions.Converters.Add(new ModelConverter());
             serializerOptions.Converters.Add(new DiscriminatorConverterFactory());
 
@@ -312,7 +310,6 @@ public string ToJsonNew()
 
         public static Model FromJsonNew(string json)
         {
-            var elements = new Dictionary<Guid, Element>();
             var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
 
             var model = new Model();
@@ -331,10 +328,15 @@ public static Model FromJsonNew(string json)
                 // Two converters are required. One that handles all element
                 // deserialization (including discriminator handling), and
                 // one that handles only deserialization of types with discriminators.
-                options.Converters.Add(new ElementConverterFactory(elements, typeCache, elementsElement));
+                options.Converters.Add(new ElementConverterFactory(typeCache, elementsElement));
                 options.Converters.Add(new DiscriminatorConverterFactory(typeCache));
 
-                // Set the transform
+                // Our custom reference handler will cache elements by id as
+                // they are deserialized, supporting reading elements by id
+                // from JSON.
+                var refHandler = new ElementReferenceHandler();
+                options.ReferenceHandler = refHandler;
+
                 model.Transform = System.Text.Json.JsonSerializer.Deserialize<Transform>(transformElement.ToString(), options);
 
                 // Create the elements
@@ -345,6 +347,10 @@ public static Model FromJsonNew(string json)
                     var element = (Element)System.Text.Json.JsonSerializer.Deserialize(elementElement.Value.ToString(), subType, options);
                     model.AddElement(element, false);
                 }
+
+                // Resetting the reference handler, empties the internal
+                // elements cache.
+                refHandler.Reset();
             }
 
             return model;
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 7dd289f39..a55549f0d 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -10,7 +10,6 @@ namespace Elements.Serialization.JSON
 {
     internal class ElementConverterFactory : JsonConverterFactory
     {
-        private readonly Dictionary<Guid, Element> _elements;
 
         private readonly Dictionary<string, Type> _typeCache;
 
@@ -24,14 +23,11 @@ internal class ElementConverterFactory : JsonConverterFactory
         /// <summary>
         /// Construct an element converter factory.
         /// </summary>
-        /// <param name="elements">A cache of elements.</param>
         /// <param name="typeCache">A cache of types.</param>
         /// <param name="documentElements">The elements node of a model being deserialized.</param>
-        public ElementConverterFactory(Dictionary<Guid, Element> elements,
-                                       Dictionary<string, Type> typeCache = null,
+        public ElementConverterFactory(Dictionary<string, Type> typeCache = null,
                                        JsonElement documentElements = default)
         {
-            _elements = elements;
             _documentElements = documentElements;
             _typeCache = typeCache;
         }
@@ -45,34 +41,31 @@ public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializer
         {
             if (typeToConvert == typeof(Material))
             {
-                return new ElementConverter<Material>(_elements, _typeCache, _documentElements);
+                return new ElementConverter<Material>(_typeCache, _documentElements);
             }
             else if (typeToConvert == typeof(Profile))
             {
-                return new ElementConverter<Profile>(_elements, _typeCache, _documentElements);
+                return new ElementConverter<Profile>(_typeCache, _documentElements);
             }
             else if (typeToConvert == typeof(GeometricElement))
             {
-                return new ElementConverter<GeometricElement>(_elements, _typeCache, _documentElements);
+                return new ElementConverter<GeometricElement>(_typeCache, _documentElements);
             }
             else
             {
-                return new ElementConverter<Element>(_elements, _typeCache, _documentElements);
+                return new ElementConverter<Element>(_typeCache, _documentElements);
             }
         }
     }
 
     internal class ElementConverter<TElement> : JsonConverter<TElement> where TElement : Element
     {
-        private readonly Dictionary<Guid, Element> _elements;
         private readonly Dictionary<string, Type> _typeCache;
         private readonly JsonElement _documentElements;
 
-        public ElementConverter(Dictionary<Guid, Element> elements,
-                                Dictionary<string, Type> typeCache,
+        public ElementConverter(Dictionary<string, Type> typeCache,
                                 JsonElement documentElements)
         {
-            _elements = elements;
             _typeCache = typeCache;
             _documentElements = documentElements;
         }
@@ -81,6 +74,8 @@ public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, Jso
         {
             using (var doc = JsonDocument.ParseValue(ref reader))
             {
+                var resolver = options.ReferenceHandler.CreateResolver();
+
                 var root = doc.RootElement;
 
                 var discriminator = root.GetProperty("discriminator").GetString();
@@ -98,7 +93,7 @@ public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, Jso
                     var prop = root.GetProperty(elementProperty.Name);
                     if (prop.TryGetGuid(out var referencedId))
                     {
-                        if (_elements.ContainsKey(referencedId))
+                        if (resolver.ResolveReference(referencedId.ToString()) != null)
                         {
                             continue;
                         }
@@ -108,29 +103,32 @@ public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, Jso
                             if (propertyBody.TryGetProperty("discriminator", out var elementBody))
                             {
                                 var referencedElement = (Element)prop.Deserialize(elementProperty.PropertyType);
-                                _elements[referencedId] = referencedElement;
+                                resolver.AddReference(referencedId.ToString(), referencedElement);
                             }
                         }
                         else
                         {
                             // The reference cannot be found. It's either not 
                             // a direct reference, as in the case of a cross-model
-                            // reference, or it's just broken. 
-                            _elements[referencedId] = null;
+                            // reference, or it's just broken.
+                            resolver.AddReference(referencedId.ToString(), null);
                         }
                     }
                 }
 
-                // Deserialize without further specifying the converter to avoid an infinite loop.
+                // Create new JSON serializer options, reusing the existing 
+                // discriminator factory converter and reference resolver, 
+                // but don't pass the element converter because it will result
+                // in an infinite loop.
                 var o = new JsonSerializerOptions()
                 {
                     PropertyNameCaseInsensitive = true
                 };
-                // Reuse the existing discriminator factory converter.
                 o.Converters.Add(options.Converters.First(c => c.GetType() == typeof(DiscriminatorConverterFactory)));
-                o.Converters.Add(new ElementIdConverterFactory(_elements));
+                o.ReferenceHandler = options.ReferenceHandler;
+
                 TElement e = (TElement)root.Deserialize(subType, o);
-                _elements.Add(e.Id, e);
+                resolver.AddReference(e.Id.ToString(), e);
                 return e;
             }
         }
diff --git a/Elements/src/Serialization/JSON/ElementIdConverter.cs b/Elements/src/Serialization/JSON/ElementIdConverter.cs
index c88176ef0..3641d538e 100644
--- a/Elements/src/Serialization/JSON/ElementIdConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementIdConverter.cs
@@ -45,15 +45,17 @@ public ElementIdConverter(Dictionary<Guid, Element> elements)
 
         public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            var id = reader.GetGuid();
-            if (_elements.ContainsKey(id))
-            {
-                return (TElement)_elements[id];
-            }
-            else
-            {
-                return null;
-            }
+            var id = reader.GetString();
+            // if (_elements.ContainsKey(id))
+            // {
+            //     return (TElement)_elements[id];
+            // }
+            // else
+            // {
+            //     return null;
+            // }
+            var resolver = options.ReferenceHandler.CreateResolver();
+            return (TElement)resolver.ResolveReference(id.ToString());
         }
 
         public override void Write(Utf8JsonWriter writer, TElement value, JsonSerializerOptions options)
diff --git a/Elements/src/Serialization/JSON/ElementReferenceResolver.cs b/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
new file mode 100644
index 000000000..ba2766318
--- /dev/null
+++ b/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
@@ -0,0 +1,77 @@
+using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Elements.Serialization.JSON
+{
+    // This is a hack of the reference resolver.
+    // We don't actually use reference resolution (ex: $ref, $id) in our element converter,
+    // but we use a reference resolver because it can be passed down through
+    // serialization and made available to both properties with converter
+    // attributes, and objects serialized/deserialized using converters
+    // from the serializer's options.
+    // https://docs.microsoft.com/en-us/dotnet/standard/serialization/system-text-json-preserve-references?pivots=dotnet-6-0#persist-reference-metadata-across-multiple-serialization-and-deserialization-calls
+    internal class ElementReferenceResolver : ReferenceResolver
+    {
+        // private uint _referenceCount;
+        private readonly Dictionary<string, object> _referenceIdToObjectMap = new Dictionary<string, object>();
+        private readonly Dictionary<object, string> _objectToReferenceIdMap = new Dictionary<object, string>();
+
+        public override void AddReference(string referenceId, object value)
+        {
+            // TODO: Enable this when we move to a .net version that supports TryAdd
+            // if (!_referenceIdToObjectMap.TryAdd(referenceId, value))
+            // {
+            //     throw new JsonException();
+            // }
+
+            if (_referenceIdToObjectMap == null)
+            {
+                throw new JsonException(nameof(_referenceIdToObjectMap));
+            }
+
+            if (!_referenceIdToObjectMap.ContainsKey(referenceId))
+            {
+                _referenceIdToObjectMap.Add(referenceId, value);
+            }
+        }
+
+        public override string GetReference(object value, out bool alreadyExists)
+        {
+            if (_objectToReferenceIdMap.TryGetValue(value, out string referenceId))
+            {
+                alreadyExists = true;
+            }
+            else
+            {
+                // _referenceCount++;
+                // referenceId = _referenceCount.ToString();
+                _objectToReferenceIdMap.Add(value, referenceId);
+                alreadyExists = false;
+            }
+
+            return referenceId;
+        }
+
+        public override object ResolveReference(string referenceId)
+        {
+            if (!_referenceIdToObjectMap.TryGetValue(referenceId, out object value))
+            {
+                // In the default version of this reference resolver
+                // they throw an exception when a reference cannot be found.
+                // But we want to be more permissive and just return null.
+                return null;
+            }
+
+            return value;
+        }
+    }
+
+    internal class ElementReferenceHandler : ReferenceHandler
+    {
+        public ElementReferenceHandler() => Reset();
+        private ReferenceResolver _rootedResolver;
+        public override ReferenceResolver CreateResolver() => _rootedResolver;
+        public void Reset() => _rootedResolver = new ElementReferenceResolver();
+    }
+}
\ No newline at end of file

From 2856f1f5a39422776cc3962d0bfbf492e8c255dd Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 21 Feb 2022 22:52:04 -0800
Subject: [PATCH 016/150] Do it all with one converter.

---
 Elements.Wasm/ElementsWrapper.cs              |  10 +-
 Elements.Wasm/wwwroot/index.html              |   2 +-
 Elements/src/Element.cs                       |   2 +
 Elements/src/GeometricElement.cs              |   4 +-
 Elements/src/Geometry/Curve.cs                |   2 +
 Elements/src/Geometry/Profile.cs              |   1 +
 .../Geometry/Profiles/WideFlangeProfile.cs    |  30 ++--
 Elements/src/Geometry/Solids/Extrude.cs       |   2 +
 .../src/Geometry/Solids/SolidOperation.cs     |   2 +
 Elements/src/Geometry/Solids/Sweep.cs         |   3 +
 Elements/src/Model.cs                         |  30 ++--
 .../JSON/DiscriminatorConverter.cs            |  78 -----------
 .../Serialization/JSON/ElementConverter.cs    | 128 ++++--------------
 .../Serialization/JSON/ElementIdConverter.cs  |  66 ---------
 .../JSON/ElementReferenceResolver.cs          |  16 ++-
 .../JSON/PropertySerializationExtensions.cs   |  35 +++++
 Elements/src/Spatial/Grid1d.cs                |   2 +
 Elements/src/Spatial/Grid2d.cs                |   2 +
 Elements/src/StructuralFraming.cs             |   2 +
 Elements/test/Grid2dElement.cs                |   2 +
 Elements/test/ModelTests.cs                   |  16 +++
 Elements/test/StructuralFramingTests.cs       |  10 +-
 22 files changed, 147 insertions(+), 298 deletions(-)
 delete mode 100644 Elements/src/Serialization/JSON/DiscriminatorConverter.cs
 delete mode 100644 Elements/src/Serialization/JSON/ElementIdConverter.cs

diff --git a/Elements.Wasm/ElementsWrapper.cs b/Elements.Wasm/ElementsWrapper.cs
index f47f784a9..826c4b3a9 100644
--- a/Elements.Wasm/ElementsWrapper.cs
+++ b/Elements.Wasm/ElementsWrapper.cs
@@ -13,7 +13,7 @@ public static class ElementsAPI
     [JSInvokable]
     public static Task<Model> ModelFromJson(string json)
     {
-        return Task.FromResult(Model.FromJson(json, out _, false));
+        return Task.FromResult(Model.FromJsonNew(json));
     }
 
     [JSInvokable]
@@ -21,7 +21,7 @@ public static Task<string> ModelToGlbBase64(string json)
     {
         Validator.DisableValidationOnConstruction = true;
 
-        var model = Model.FromJson(json, out _, false);
+        var model = Model.FromJsonNew(json);
         return Task.FromResult(model.ToBase64String());
     }
 
@@ -32,12 +32,8 @@ public static Task<byte[]> ModelToGlbBytes(string json)
 
         var sw = new Stopwatch();
         sw.Start();
-        var model = Model.FromJson(json, out var errors, false);
+        var model = Model.FromJsonNew(json);
         Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the model from json.");
-        foreach (var error in errors)
-        {
-            Console.WriteLine(error);
-        }
         sw.Restart();
         var result = Task.FromResult(model.ToGlTF());
         Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the glb from json.");
diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index 514143a86..c09b3a3ad 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -11,7 +11,7 @@
 <body>
     <script type="module" src="js/Elements.js"></script>
     <script src="_framework/blazor.webassembly.js"></script>
-    <button onclick="elements.modelToGlbBase64(JSON.stringify(beams)).then((model)=>{console.log(model)})"
+    <button onclick="elements.modelToGlbBytes(JSON.stringify(beams)).then((model)=>{console.log(model)})"
         type="button">Test!</button>
 </body>
 
diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index 3fd2a399d..eacba9ad2 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -1,4 +1,5 @@
 using System;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -6,6 +7,7 @@ namespace Elements
     /// An object which is identified with a unique identifier and a name.
     /// </summary>
     [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Element>))]
     public abstract class Element : System.ComponentModel.INotifyPropertyChanged
     {
         private System.Guid _id;
diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index 35cd183d0..fe39187ed 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -1,8 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Interfaces;
@@ -23,7 +21,7 @@ public class GeometricElement : Element
 
         /// <summary>The element's material.</summary>
         [Newtonsoft.Json.JsonProperty("Material", Required = Newtonsoft.Json.Required.AllowNull)]
-        [System.Text.Json.Serialization.JsonConverter(typeof(ElementIdConverter<Material>))]
+        [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Material>))]
         public Material Material { get; set; }
 
         /// <summary>The element's representation.</summary>
diff --git a/Elements/src/Geometry/Curve.cs b/Elements/src/Geometry/Curve.cs
index 9d4267597..9ca10abc1 100644
--- a/Elements/src/Geometry/Curve.cs
+++ b/Elements/src/Geometry/Curve.cs
@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using Elements.Geometry.Interfaces;
+using Elements.Serialization.JSON;
 
 namespace Elements.Geometry
 {
@@ -7,6 +8,7 @@ namespace Elements.Geometry
     /// The abstract base class for all curves.
     /// </summary>
     [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Curve>))]
     public abstract partial class Curve : ICurve, ITransformable<Curve>
     {
         /// <summary>
diff --git a/Elements/src/Geometry/Profile.cs b/Elements/src/Geometry/Profile.cs
index e7beb3a47..4d95b2f0b 100644
--- a/Elements/src/Geometry/Profile.cs
+++ b/Elements/src/Geometry/Profile.cs
@@ -33,6 +33,7 @@ internal Profile() { }
         /// <param name="id">The id of the profile.</param>
         /// <param name="name">The name of the profile.</param>
         [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public Profile(Polygon @perimeter, IList<Polygon> @voids, Guid @id = default, string @name = null)
             : base(id, name)
         {
diff --git a/Elements/src/Geometry/Profiles/WideFlangeProfile.cs b/Elements/src/Geometry/Profiles/WideFlangeProfile.cs
index bf01d7490..d59241311 100644
--- a/Elements/src/Geometry/Profiles/WideFlangeProfile.cs
+++ b/Elements/src/Geometry/Profiles/WideFlangeProfile.cs
@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections.Generic;
+using Elements.Serialization.JSON;
 using Newtonsoft.Json;
 
 namespace Elements.Geometry.Profiles
@@ -50,15 +51,15 @@ public enum HorizontalAlignment
     public class WideFlangeProfile : Profile
     {
         [JsonIgnore]
-        public double A { get; internal set; }
+        public double A { get; set; }
 
-        public double d { get; internal set; }
+        public double d { get; set; }
 
-        public double tw { get; internal set; }
+        public double tw { get; set; }
 
-        public double bf { get; internal set; }
+        public double bf { get; set; }
 
-        public double tf { get; internal set; }
+        public double tf { get; set; }
 
         [JsonIgnore]
         public string T { get; internal set; }
@@ -129,28 +130,21 @@ public class WideFlangeProfile : Profile
         /// <param name="d"></param>
         /// <param name="tf"></param>
         /// <param name="tw"></param>
-        /// <param name="verticalAlignment"></param>
-        /// <param name="horizontalAlignment"></param>
-        /// <param name="verticalOffset"></param>
-        /// <param name="horizontalOffset"></param>
         [JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public WideFlangeProfile(string name,
                                  Guid id,
                                  double bf = 0.1,
                                  double d = 0.05,
                                  double tf = 0.005,
-                                 double tw = 0.005,
-                                 VerticalAlignment verticalAlignment = VerticalAlignment.Center,
-                                 HorizontalAlignment horizontalAlignment = HorizontalAlignment.Center,
-                                 double verticalOffset = 0.0,
-                                 double horizontalOffset = 0.0) : base(CreateProfile(bf,
+                                 double tw = 0.005) : base(CreateProfile(bf,
                                                                 d,
                                                                 tf,
                                                                 tw,
-                                                                verticalAlignment,
-                                                                horizontalAlignment,
-                                                                verticalOffset,
-                                                                horizontalOffset), new List<Polygon>(), id, name)
+                                                                VerticalAlignment.Center,
+                                                                HorizontalAlignment.Center,
+                                                                0,
+                                                                0), new List<Polygon>(), id, name)
         {
             this.bf = bf;
             this.d = d;
diff --git a/Elements/src/Geometry/Solids/Extrude.cs b/Elements/src/Geometry/Solids/Extrude.cs
index dadcfba5d..6d316879f 100644
--- a/Elements/src/Geometry/Solids/Extrude.cs
+++ b/Elements/src/Geometry/Solids/Extrude.cs
@@ -1,4 +1,5 @@
 using System;
+using Elements.Serialization.JSON;
 using Elements.Validators;
 
 namespace Elements.Geometry.Solids
@@ -14,6 +15,7 @@ public class Extrude : SolidOperation, System.ComponentModel.INotifyPropertyChan
 
         /// <summary>The id of the profile to extrude.</summary>
         [Newtonsoft.Json.JsonProperty("Profile", Required = Newtonsoft.Json.Required.AllowNull)]
+        [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile
         {
             get { return _profile; }
diff --git a/Elements/src/Geometry/Solids/SolidOperation.cs b/Elements/src/Geometry/Solids/SolidOperation.cs
index ef6fe50b0..6256c72ae 100644
--- a/Elements/src/Geometry/Solids/SolidOperation.cs
+++ b/Elements/src/Geometry/Solids/SolidOperation.cs
@@ -1,3 +1,4 @@
+using Elements.Serialization.JSON;
 using Newtonsoft.Json;
 
 namespace Elements.Geometry.Solids
@@ -6,6 +7,7 @@ namespace Elements.Geometry.Solids
     /// The base class for all operations which create solids.
     /// </summary>
     [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<SolidOperation>))]
     public abstract class SolidOperation
     {
         internal Solid _solid;
diff --git a/Elements/src/Geometry/Solids/Sweep.cs b/Elements/src/Geometry/Solids/Sweep.cs
index c3fc60aa7..1c3a9c1be 100644
--- a/Elements/src/Geometry/Solids/Sweep.cs
+++ b/Elements/src/Geometry/Solids/Sweep.cs
@@ -1,3 +1,5 @@
+using Elements.Serialization.JSON;
+
 namespace Elements.Geometry.Solids
 {
     /// <summary>A sweep of a profile along a curve.</summary>
@@ -35,6 +37,7 @@ public Sweep(Profile @profile, Curve @curve, double @startSetback, double @endSe
 
         /// <summary>The id of the profile to be swept along the curve.</summary>
         [Newtonsoft.Json.JsonProperty("Profile", Required = Newtonsoft.Json.Required.AllowNull)]
+        [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile
         {
             get { return _profile; }
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index a2387c68b..70da8dd99 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -13,6 +13,7 @@
 using Elements.GeoJSON;
 using System.IO;
 using System.Text.Json;
+using System.Diagnostics;
 
 namespace Elements
 {
@@ -302,17 +303,17 @@ public string ToJsonNew()
             };
 
             serializerOptions.Converters.Add(new ElementConverterFactory());
-            serializerOptions.Converters.Add(new ModelConverter());
-            serializerOptions.Converters.Add(new DiscriminatorConverterFactory());
-
             return System.Text.Json.JsonSerializer.Serialize(this, serializerOptions);
         }
 
         public static Model FromJsonNew(string json)
         {
+            var sw = new Stopwatch();
+            sw.Start();
             var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating type cache.");
 
-            var model = new Model();
+            Model model = null;
             using (var document = JsonDocument.Parse(json))
             {
                 JsonElement root = document.RootElement;
@@ -325,32 +326,17 @@ public static Model FromJsonNew(string json)
                     PropertyNameCaseInsensitive = true
                 };
 
-                // Two converters are required. One that handles all element
-                // deserialization (including discriminator handling), and
-                // one that handles only deserialization of types with discriminators.
-                options.Converters.Add(new ElementConverterFactory(typeCache, elementsElement));
-                options.Converters.Add(new DiscriminatorConverterFactory(typeCache));
-
                 // Our custom reference handler will cache elements by id as
                 // they are deserialized, supporting reading elements by id
                 // from JSON.
-                var refHandler = new ElementReferenceHandler();
+                var refHandler = new ElementReferenceHandler(typeCache, elementsElement);
                 options.ReferenceHandler = refHandler;
 
-                model.Transform = System.Text.Json.JsonSerializer.Deserialize<Transform>(transformElement.ToString(), options);
-
-                // Create the elements
-                foreach (var elementElement in elementsElement.EnumerateObject())
-                {
-                    var discriminator = elementElement.Value.GetProperty("discriminator").GetString();
-                    var subType = PropertySerializationExtensions.GetObjectSubtype(typeof(Element), discriminator, typeCache);
-                    var element = (Element)System.Text.Json.JsonSerializer.Deserialize(elementElement.Value.ToString(), subType, options);
-                    model.AddElement(element, false);
-                }
+                model = System.Text.Json.JsonSerializer.Deserialize<Model>(json, options);
 
                 // Resetting the reference handler, empties the internal
                 // elements cache.
-                refHandler.Reset();
+                refHandler.Reset(typeCache, elementsElement);
             }
 
             return model;
diff --git a/Elements/src/Serialization/JSON/DiscriminatorConverter.cs b/Elements/src/Serialization/JSON/DiscriminatorConverter.cs
deleted file mode 100644
index fa0f3df24..000000000
--- a/Elements/src/Serialization/JSON/DiscriminatorConverter.cs
+++ /dev/null
@@ -1,78 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using Elements.Geometry;
-using Elements.Geometry.Solids;
-using Elements.Spatial;
-
-namespace Elements.Serialization.JSON
-{
-    internal class DiscriminatorConverterFactory : JsonConverterFactory
-    {
-        private readonly Dictionary<string, Type> _typeCache;
-
-        public DiscriminatorConverterFactory(Dictionary<string, Type> typeCache = null)
-        {
-            _typeCache = typeCache;
-        }
-
-        public override bool CanConvert(Type typeToConvert)
-        {
-            return typeToConvert == typeof(Curve)
-                   || typeToConvert == typeof(Grid1d)
-                   || typeToConvert == typeof(Grid2d)
-                   || typeToConvert == typeof(SolidOperation);
-        }
-
-        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
-        {
-            if (typeToConvert == typeof(Curve))
-            {
-                return new DiscriminatorConverter<Curve>(_typeCache);
-            }
-            else if (typeToConvert == typeof(Grid1d))
-            {
-                return new DiscriminatorConverter<Grid1d>(_typeCache);
-            }
-            else if (typeToConvert == typeof(Grid2d))
-            {
-                return new DiscriminatorConverter<Grid2d>(_typeCache);
-            }
-            else if (typeToConvert == typeof(SolidOperation))
-            {
-                return new DiscriminatorConverter<SolidOperation>(_typeCache);
-            }
-
-            throw new JsonException("A discriminator converter could not be found.");
-        }
-    }
-
-    internal class DiscriminatorConverter<TDiscriminated> : JsonConverter<TDiscriminated>
-    {
-        private Dictionary<string, Type> _typeCache;
-
-        public DiscriminatorConverter(Dictionary<string, Type> typeCache)
-        {
-            _typeCache = typeCache;
-        }
-
-        public override TDiscriminated Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        {
-            using (var doc = JsonDocument.ParseValue(ref reader))
-            {
-                var root = doc.RootElement;
-                var discriminator = root.GetProperty("discriminator").GetString();
-                var subType = _typeCache[discriminator];
-                return (TDiscriminated)JsonSerializer.Deserialize(root, subType, options);
-            }
-        }
-
-        public override void Write(Utf8JsonWriter writer, TDiscriminated value, JsonSerializerOptions options)
-        {
-            writer.WriteStartObject();
-            value.WriteProperties(writer, options);
-            writer.WriteEndObject();
-        }
-    }
-}
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index a55549f0d..25845b1af 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -1,37 +1,12 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
+using System.Diagnostics;
 using System.Text.Json;
 using System.Text.Json.Serialization;
-using Elements.Geometry;
 
 namespace Elements.Serialization.JSON
 {
     internal class ElementConverterFactory : JsonConverterFactory
     {
-
-        private readonly Dictionary<string, Type> _typeCache;
-
-        /// <summary>
-        /// An element representing the Elements property on the 
-        /// model object being deserialized. This is used to do 
-        /// forward-looking deserialization of nested references.
-        /// </summary>
-        private readonly JsonElement _documentElements;
-
-        /// <summary>
-        /// Construct an element converter factory.
-        /// </summary>
-        /// <param name="typeCache">A cache of types.</param>
-        /// <param name="documentElements">The elements node of a model being deserialized.</param>
-        public ElementConverterFactory(Dictionary<string, Type> typeCache = null,
-                                       JsonElement documentElements = default)
-        {
-            _documentElements = documentElements;
-            _typeCache = typeCache;
-        }
-
         public override bool CanConvert(Type typeToConvert)
         {
             return typeof(Element).IsAssignableFrom(typeToConvert);
@@ -39,47 +14,35 @@ public override bool CanConvert(Type typeToConvert)
 
         public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
         {
-            if (typeToConvert == typeof(Material))
-            {
-                return new ElementConverter<Material>(_typeCache, _documentElements);
-            }
-            else if (typeToConvert == typeof(Profile))
-            {
-                return new ElementConverter<Profile>(_typeCache, _documentElements);
-            }
-            else if (typeToConvert == typeof(GeometricElement))
-            {
-                return new ElementConverter<GeometricElement>(_typeCache, _documentElements);
-            }
-            else
-            {
-                return new ElementConverter<Element>(_typeCache, _documentElements);
-            }
+            var elementConverter = typeof(ElementConverter<>);
+            var typeArgs = new[] { typeToConvert };
+            var converterType = elementConverter.MakeGenericType(typeArgs);
+            var converter = Activator.CreateInstance(converterType) as JsonConverter;
+            return converter;
         }
     }
 
-    internal class ElementConverter<TElement> : JsonConverter<TElement> where TElement : Element
+    internal class ElementConverter<T> : JsonConverter<T>
     {
-        private readonly Dictionary<string, Type> _typeCache;
-        private readonly JsonElement _documentElements;
-
-        public ElementConverter(Dictionary<string, Type> typeCache,
-                                JsonElement documentElements)
+        public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            _typeCache = typeCache;
-            _documentElements = documentElements;
-        }
+            var sw = new Stopwatch();
+            sw.Start();
 
-        public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        {
-            using (var doc = JsonDocument.ParseValue(ref reader))
+            var resolver = options.ReferenceHandler.CreateResolver() as ElementReferenceResolver;
+
+            if (reader.TokenType == JsonTokenType.String)
             {
-                var resolver = options.ReferenceHandler.CreateResolver();
+                var id = reader.GetString();
+                return (T)resolver.ResolveReference(id.ToString());
+            }
 
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
                 var root = doc.RootElement;
 
                 var discriminator = root.GetProperty("discriminator").GetString();
-                var subType = _typeCache[discriminator];
+                var derivedType = resolver.TypeCache[discriminator];
 
                 // Use the type info to get all properties which are Element
                 // references, and deserialize those first.
@@ -87,57 +50,24 @@ public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, Jso
                 // TODO: This *should* support serialization of elements in
                 // any order, removing the requirement to do any kind of recursive
                 // sub-element searching. We can remove that code from the model.
-                var elementProperties = subType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => typeof(Element).IsAssignableFrom(p.PropertyType));
-                foreach (var elementProperty in elementProperties)
-                {
-                    var prop = root.GetProperty(elementProperty.Name);
-                    if (prop.TryGetGuid(out var referencedId))
-                    {
-                        if (resolver.ResolveReference(referencedId.ToString()) != null)
-                        {
-                            continue;
-                        }
+                PropertySerializationExtensions.DeserializeElementProperties(derivedType, root, resolver, resolver.DocumentElements);
 
-                        if (_documentElements.TryGetProperty(referencedId.ToString(), out var propertyBody))
-                        {
-                            if (propertyBody.TryGetProperty("discriminator", out var elementBody))
-                            {
-                                var referencedElement = (Element)prop.Deserialize(elementProperty.PropertyType);
-                                resolver.AddReference(referencedId.ToString(), referencedElement);
-                            }
-                        }
-                        else
-                        {
-                            // The reference cannot be found. It's either not 
-                            // a direct reference, as in the case of a cross-model
-                            // reference, or it's just broken.
-                            resolver.AddReference(referencedId.ToString(), null);
-                        }
-                    }
-                }
-
-                // Create new JSON serializer options, reusing the existing 
-                // discriminator factory converter and reference resolver, 
-                // but don't pass the element converter because it will result
-                // in an infinite loop.
-                var o = new JsonSerializerOptions()
+                T e = (T)root.Deserialize(derivedType, options);
+                if (typeof(Element).IsAssignableFrom(derivedType))
                 {
-                    PropertyNameCaseInsensitive = true
-                };
-                o.Converters.Add(options.Converters.First(c => c.GetType() == typeof(DiscriminatorConverterFactory)));
-                o.ReferenceHandler = options.ReferenceHandler;
-
-                TElement e = (TElement)root.Deserialize(subType, o);
-                resolver.AddReference(e.Id.ToString(), e);
+                    resolver.AddReference(((Element)(object)e).Id.ToString(), e);
+                }
+                Console.WriteLine($"{sw.ElapsedMilliseconds}ms for deserializing type.");
                 return e;
             }
         }
 
-        public override void Write(Utf8JsonWriter writer, TElement value, JsonSerializerOptions options)
+        public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options)
         {
-            if (writer.CurrentDepth > 2)
+            var isElement = typeof(Element).IsAssignableFrom(value.GetType());
+            if (writer.CurrentDepth > 2 && isElement)
             {
-                writer.WriteStringValue(value.Id.ToString());
+                writer.WriteStringValue(((Element)(object)value).Id.ToString());
             }
             else
             {
diff --git a/Elements/src/Serialization/JSON/ElementIdConverter.cs b/Elements/src/Serialization/JSON/ElementIdConverter.cs
deleted file mode 100644
index 3641d538e..000000000
--- a/Elements/src/Serialization/JSON/ElementIdConverter.cs
+++ /dev/null
@@ -1,66 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Elements.Serialization.JSON
-{
-    internal class ElementIdConverterFactory : JsonConverterFactory
-    {
-        private readonly Dictionary<Guid, Element> _elements;
-
-        public ElementIdConverterFactory(Dictionary<Guid, Element> elements)
-        {
-            _elements = elements;
-        }
-
-        public override bool CanConvert(Type typeToConvert)
-        {
-            return typeof(Element).IsAssignableFrom(typeToConvert);
-        }
-
-        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
-        {
-            var elementIdConverterType = typeof(ElementIdConverter<>);
-            var typeArgs = new[] { typeToConvert };
-            var converterType = elementIdConverterType.MakeGenericType(typeArgs);
-            var converter = Activator.CreateInstance(converterType, new[] { _elements }) as JsonConverter;
-            return converter;
-        }
-    }
-
-    internal class ElementIdConverter<TElement> : JsonConverter<TElement> where TElement : Element
-    {
-        private readonly Dictionary<Guid, Element> _elements;
-
-        public ElementIdConverter()
-        {
-            _elements = new Dictionary<Guid, Element>();
-        }
-
-        public ElementIdConverter(Dictionary<Guid, Element> elements)
-        {
-            _elements = elements;
-        }
-
-        public override TElement Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        {
-            var id = reader.GetString();
-            // if (_elements.ContainsKey(id))
-            // {
-            //     return (TElement)_elements[id];
-            // }
-            // else
-            // {
-            //     return null;
-            // }
-            var resolver = options.ReferenceHandler.CreateResolver();
-            return (TElement)resolver.ResolveReference(id.ToString());
-        }
-
-        public override void Write(Utf8JsonWriter writer, TElement value, JsonSerializerOptions options)
-        {
-            writer.WriteStringValue(value.Id.ToString());
-        }
-    }
-}
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/ElementReferenceResolver.cs b/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
index ba2766318..47641a762 100644
--- a/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
+++ b/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.Text.Json;
 using System.Text.Json.Serialization;
@@ -13,10 +14,19 @@ namespace Elements.Serialization.JSON
     // https://docs.microsoft.com/en-us/dotnet/standard/serialization/system-text-json-preserve-references?pivots=dotnet-6-0#persist-reference-metadata-across-multiple-serialization-and-deserialization-calls
     internal class ElementReferenceResolver : ReferenceResolver
     {
-        // private uint _referenceCount;
+        public Dictionary<string, Type> TypeCache { get; }
+        public JsonElement DocumentElements { get; }
+
         private readonly Dictionary<string, object> _referenceIdToObjectMap = new Dictionary<string, object>();
         private readonly Dictionary<object, string> _objectToReferenceIdMap = new Dictionary<object, string>();
 
+        public ElementReferenceResolver(Dictionary<string, Type> typeCache, JsonElement documentElements)
+        {
+            Console.WriteLine("Constructing a new reference resolver.");
+            TypeCache = typeCache;
+            DocumentElements = documentElements;
+        }
+
         public override void AddReference(string referenceId, object value)
         {
             // TODO: Enable this when we move to a .net version that supports TryAdd
@@ -69,9 +79,9 @@ public override object ResolveReference(string referenceId)
 
     internal class ElementReferenceHandler : ReferenceHandler
     {
-        public ElementReferenceHandler() => Reset();
+        public ElementReferenceHandler(Dictionary<string, Type> typeCache, JsonElement documentElements) => Reset(typeCache, documentElements);
         private ReferenceResolver _rootedResolver;
         public override ReferenceResolver CreateResolver() => _rootedResolver;
-        public void Reset() => _rootedResolver = new ElementReferenceResolver();
+        public void Reset(Dictionary<string, Type> typeCache, JsonElement documentElements) => _rootedResolver = new ElementReferenceResolver(typeCache, documentElements);
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
index f82364dd6..4e60a947d 100644
--- a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
+++ b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
@@ -86,5 +86,40 @@ public static Type GetObjectSubtype(Type objectType, string discriminator, Dicti
             // is to return the base objectType if a derived type can't be found.
             return objectType;
         }
+
+        public static void DeserializeElementProperties(Type derivedType,
+                                                   JsonElement root,
+                                                   ReferenceResolver resolver,
+                                                   JsonElement documentElements)
+        {
+            var elementProperties = derivedType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => typeof(Element).IsAssignableFrom(p.PropertyType));
+            foreach (var elementProperty in elementProperties)
+            {
+                var prop = root.GetProperty(elementProperty.Name);
+                if (prop.TryGetGuid(out var referencedId))
+                {
+                    if (resolver.ResolveReference(referencedId.ToString()) != null)
+                    {
+                        continue;
+                    }
+
+                    if (documentElements.TryGetProperty(referencedId.ToString(), out var propertyBody))
+                    {
+                        if (propertyBody.TryGetProperty("discriminator", out var elementBody))
+                        {
+                            var referencedElement = (Element)prop.Deserialize(elementProperty.PropertyType);
+                            resolver.AddReference(referencedId.ToString(), referencedElement);
+                        }
+                    }
+                    else
+                    {
+                        // The reference cannot be found. It's either not 
+                        // a direct reference, as in the case of a cross-model
+                        // reference, or it's just broken.
+                        resolver.AddReference(referencedId.ToString(), null);
+                    }
+                }
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Spatial/Grid1d.cs b/Elements/src/Spatial/Grid1d.cs
index e8289414c..7b43e5f2e 100644
--- a/Elements/src/Spatial/Grid1d.cs
+++ b/Elements/src/Spatial/Grid1d.cs
@@ -3,6 +3,7 @@
 using System.Collections.Specialized;
 using System.Linq;
 using Elements.Geometry;
+using Elements.Serialization.JSON;
 using Newtonsoft.Json;
 
 namespace Elements.Spatial
@@ -14,6 +15,7 @@ namespace Elements.Spatial
     /// [!code-csharp[Main](../../Elements/test/Grid1dTests.cs?name=example)]
     /// </example>
     [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Grid1d>))]
     public class Grid1d
     {
         #region Properties
diff --git a/Elements/src/Spatial/Grid2d.cs b/Elements/src/Spatial/Grid2d.cs
index 13068ea37..649619a75 100644
--- a/Elements/src/Spatial/Grid2d.cs
+++ b/Elements/src/Spatial/Grid2d.cs
@@ -3,6 +3,7 @@
 using System.Linq;
 using Elements.Geometry;
 using Elements.Geometry.Interfaces;
+using Elements.Serialization.JSON;
 using Newtonsoft.Json;
 
 namespace Elements.Spatial
@@ -14,6 +15,7 @@ namespace Elements.Spatial
     /// [!code-csharp[Main](../../Elements/test/Grid2dTests.cs?name=example)]
     /// </example>
     [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Grid2d>))]
     public class Grid2d
     {
         #region Properties
diff --git a/Elements/src/StructuralFraming.cs b/Elements/src/StructuralFraming.cs
index 6a1854764..cff46db06 100644
--- a/Elements/src/StructuralFraming.cs
+++ b/Elements/src/StructuralFraming.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -28,6 +29,7 @@ public abstract class StructuralFraming : GeometricElement
         /// <summary>
         /// The structural framing's profile.
         /// </summary>
+        [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile { get; set; }
 
         /// <summary>
diff --git a/Elements/test/Grid2dElement.cs b/Elements/test/Grid2dElement.cs
index f86a4194b..956aecbc4 100644
--- a/Elements/test/Grid2dElement.cs
+++ b/Elements/test/Grid2dElement.cs
@@ -1,9 +1,11 @@
+using Elements.Serialization.JSON;
 using Elements.Spatial;
 
 namespace Elements
 {
     /// <summary>Just a test</summary>
     [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Grid2dElement>))]
     public partial class Grid2dElement : Element
     {
         /// <summary>contains a grid</summary>
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index 5aebd4b34..db1f42166 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -11,6 +11,7 @@
 using Xunit.Abstractions;
 using Newtonsoft.Json.Linq;
 using System.Threading.Tasks;
+using Elements.Geometry.Profiles;
 
 namespace Elements.Tests
 {
@@ -362,6 +363,21 @@ public void SerializesNew()
             var newModel = Model.FromJsonNew(json);
         }
 
+        [Fact]
+        public void SerializesOneBeamNew()
+        {
+            var profiles = new WideFlangeProfileFactory();
+            var w = profiles.GetProfileByType(WideFlangeProfileType.W44x335);
+
+            var line = new Line(Vector3.Origin, new Vector3(5, 5));
+            var beam = new Beam(line, w);
+            var model = new Model();
+            model.AddElement(beam);
+            var json = model.ToJsonNew();
+            _output.WriteLine(json);
+            var newModel = Model.FromJsonNew(json);
+        }
+
         private Model QuadPanelModel()
         {
             var model = new Model();
diff --git a/Elements/test/StructuralFramingTests.cs b/Elements/test/StructuralFramingTests.cs
index 11b6d4c30..6936884ad 100644
--- a/Elements/test/StructuralFramingTests.cs
+++ b/Elements/test/StructuralFramingTests.cs
@@ -4,6 +4,7 @@
 using System.Linq;
 using Xunit;
 using System.Diagnostics;
+using Xunit.Abstractions;
 
 namespace Elements.Tests
 {
@@ -21,8 +22,11 @@ public enum BeamType
 
         private WideFlangeProfile _testProfile;
 
-        public StructuralFramingTests()
+        private ITestOutputHelper _output;
+
+        public StructuralFramingTests(ITestOutputHelper output)
         {
+            _output = output;
             _testProfile = _wideFlangeFactory.GetProfileByType(WideFlangeProfileType.W10x100);
         }
 
@@ -57,6 +61,10 @@ public void BeamExample()
             this.Model.AddElements(polyT);
             this.Model.AddElement(arcBeam);
             this.Model.AddElements(arcT);
+
+            var json = this.Model.ToJsonNew();
+            _output.WriteLine(json);
+            var newModel = Model.FromJsonNew(json);
         }
 
         [Theory]

From c97b42a3179d202565525c637b0ef8b46e048dc6 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 21 Feb 2022 23:18:59 -0800
Subject: [PATCH 017/150] Some better test infrastructure.

---
 Elements.Wasm/ElementsWrapper.cs     | 36 ++++++++++++++++++++++++++++
 Elements.Wasm/wwwroot/index.html     | 12 ++++++++--
 Elements.Wasm/wwwroot/js/Elements.js |  4 ++++
 3 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/Elements.Wasm/ElementsWrapper.cs b/Elements.Wasm/ElementsWrapper.cs
index 826c4b3a9..f064519a5 100644
--- a/Elements.Wasm/ElementsWrapper.cs
+++ b/Elements.Wasm/ElementsWrapper.cs
@@ -7,6 +7,7 @@
 using Elements.Validators;
 using Microsoft.JSInterop;
 using System.Diagnostics;
+using System.Text;
 
 public static class ElementsAPI
 {
@@ -25,6 +26,41 @@ public static Task<string> ModelToGlbBase64(string json)
         return Task.FromResult(model.ToBase64String());
     }
 
+    [JSInvokable]
+    public static Task<string> Test()
+    {
+        var sw = new Stopwatch();
+        sw.Start();
+        var sb = new StringBuilder();
+
+        var model = new Model();
+        var r = new Random();
+        var size = 10;
+        for (var i = 0; i < 100; i++)
+        {
+            var start = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
+            var end = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
+            var line = new Line(start, end);
+            var beam = new Beam(line, Polygon.L(0.1, 0.1, 0.05));
+            model.AddElement(beam);
+        }
+        sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating test beams.");
+        sw.Restart();
+
+        var json = model.ToJsonNew();
+        sb.AppendLine($"{sw.ElapsedMilliseconds}ms for serializing model.");
+        sw.Restart();
+
+        var newModel = Model.FromJsonNew(json);
+        sb.AppendLine($"{sw.ElapsedMilliseconds}ms for deserializing model.");
+        sw.Restart();
+
+        var result = Task.FromResult(newModel.ToGlTF());
+        sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating the glb.");
+        return Task.FromResult<string>(sb.ToString());
+
+    }
+
     [JSInvokable]
     public static Task<byte[]> ModelToGlbBytes(string json)
     {
diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index c09b3a3ad..45f8b900c 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -11,8 +11,16 @@
 <body>
     <script type="module" src="js/Elements.js"></script>
     <script src="_framework/blazor.webassembly.js"></script>
-    <button onclick="elements.modelToGlbBytes(JSON.stringify(beams)).then((model)=>{console.log(model)})"
-        type="button">Test!</button>
+    <script>
+        function reset() {
+            document.getElementById("result").innerHTML = "";
+        }
+        function runTest() {
+            elements.test().then((results) => { document.getElementById("result").innerHTML = results });
+        }
+    </script>
+    <button onmousedown="reset()" onclick="runTest()" type="button">Test!</button>
+    <div id="result"></div>
 </body>
 
 </html>
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/js/Elements.js b/Elements.Wasm/wwwroot/js/Elements.js
index eadd36109..988568f8c 100644
--- a/Elements.Wasm/wwwroot/js/Elements.js
+++ b/Elements.Wasm/wwwroot/js/Elements.js
@@ -10,6 +10,10 @@ class Elements {
     async modelToGlbBytes(json) {
         return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlbBytes', json)
     }
+
+    async test() {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'Test')
+    }
 }
 
 window.elements = new Elements();
\ No newline at end of file

From 4d1db85838c23915542118ba6660b73d8a5b0121 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 22 Feb 2022 00:56:43 -0800
Subject: [PATCH 018/150] More debugging view.

---
 Elements.Wasm/ElementsWrapper.cs              |    20 +-
 Elements.Wasm/wwwroot/index.html              |    90 +-
 Elements.Wasm/wwwroot/js/GLTFLoader.js        |  3186 +
 Elements.Wasm/wwwroot/js/three.js             | 49160 ++++++++++++++++
 Elements/src/Geometry/Solids/Sweep.cs         |     1 +
 .../Serialization/JSON/ElementConverter.cs    |     6 +-
 6 files changed, 52450 insertions(+), 13 deletions(-)
 create mode 100644 Elements.Wasm/wwwroot/js/GLTFLoader.js
 create mode 100644 Elements.Wasm/wwwroot/js/three.js

diff --git a/Elements.Wasm/ElementsWrapper.cs b/Elements.Wasm/ElementsWrapper.cs
index f064519a5..ca38190da 100644
--- a/Elements.Wasm/ElementsWrapper.cs
+++ b/Elements.Wasm/ElementsWrapper.cs
@@ -27,8 +27,10 @@ public static Task<string> ModelToGlbBase64(string json)
     }
 
     [JSInvokable]
-    public static Task<string> Test()
+    public static Task<TestResult> Test()
     {
+        Validator.DisableValidationOnConstruction = true;
+
         var sw = new Stopwatch();
         sw.Start();
         var sb = new StringBuilder();
@@ -36,12 +38,13 @@ public static Task<string> Test()
         var model = new Model();
         var r = new Random();
         var size = 10;
+        var profile = Polygon.L(0.1, 0.1, 0.05);
         for (var i = 0; i < 100; i++)
         {
             var start = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
             var end = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
             var line = new Line(start, end);
-            var beam = new Beam(line, Polygon.L(0.1, 0.1, 0.05));
+            var beam = new Beam(line, profile);
             model.AddElement(beam);
         }
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating test beams.");
@@ -55,10 +58,19 @@ public static Task<string> Test()
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for deserializing model.");
         sw.Restart();
 
-        var result = Task.FromResult(newModel.ToGlTF());
+        var result = newModel.ToGlTF();
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating the glb.");
-        return Task.FromResult<string>(sb.ToString());
+        return Task.FromResult<TestResult>(new TestResult()
+        {
+            Glb = result,
+            Results = sb.ToString()
+        });
+    }
 
+    public class TestResult
+    {
+        public byte[] Glb { get; set; }
+        public string Results { get; set; }
     }
 
     [JSInvokable]
diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index 45f8b900c..5c964f8c1 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -6,21 +6,99 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
     <title>Elements.Wasm</title>
     <base href="/" />
+    <script defer src="https://unpkg.com/es-module-shims@0.4.6/dist/es-module-shims.js"></script>
+    <script type="importmap-shim">
+      {
+        "imports": {
+          "three": "https://unpkg.com/three@0.137.5/build/three.module.js",
+          "three/examples/jsm/": "https://unpkg.com/three@0.137.5/examples/jsm/"
+        }
+      }
+      </script>
 </head>
 
 <body>
     <script type="module" src="js/Elements.js"></script>
     <script src="_framework/blazor.webassembly.js"></script>
-    <script>
+    <script type="module-shim">
+        function loadModel(glb) {
+            const blob = new Blob([new Uint8Array(glb)], { type: "application/octet-stream" });
+            const blobUrl = URL.createObjectURL(blob);
+
+            const loader = new GLTFLoader();
+
+            loader.load(
+                blobUrl,
+                function (gltf) {
+
+                    if (gltfScene != null) {
+                        scene.remove(gltfScene);
+                    }
+
+                    scene.add(gltf.scene);
+                    gltfScene = gltf.scene;
+
+                    URL.revokeObjectURL(blobUrl);
+
+                    return true;
+                },
+                function (xhr) {
+                    console.log((xhr.loaded / xhr.total * 100) + '% loaded');
+                },
+                function (error) {
+                    console.log('An error happened');
+                    console.log(error)
+                }
+            );
+        }
+
         function reset() {
             document.getElementById("result").innerHTML = "";
-        }
+        };
+
         function runTest() {
-            elements.test().then((results) => { document.getElementById("result").innerHTML = results });
-        }
+            elements.test().then((result) => {
+                document.getElementById("result").innerHTML = result.results
+                model.loadModel(result.glb)
+            });
+        };
+
+        window.model = {
+            reset: () => { reset(); },
+            runTest: () => { runTest(); },
+            loadModel: (glb) => { loadModel(glb) },
+        };
+
+        import { Scene, PerspectiveCamera, WebGLRenderer, DirectionalLight, sRGBEncoding} from 'three';
+        import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader.js';
+
+        const scene = new Scene();
+        let gltfScene = null;
+        const camera = new PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
+
+        const renderer = new WebGLRenderer({ alpha: true } );
+        renderer.physicallyCorrectLights = true;
+        renderer.outputEncoding = sRGBEncoding;
+        renderer.setSize(window.innerWidth, window.innerHeight);
+        document.body.appendChild(renderer.domElement);
+        
+        const directionalLight = new DirectionalLight( 0xffffff, 3.0 );
+        scene.add( directionalLight );
+
+        camera.position.z = 5;
+        camera.position.y = 5;
+        camera.position.x = 5;
+
+        function animate() {
+            requestAnimationFrame(animate);
+            renderer.render(scene, camera);
+        };
+
+        animate();
     </script>
-    <button onmousedown="reset()" onclick="runTest()" type="button">Test!</button>
-    <div id="result"></div>
+    <button onmousedown="model.reset()" onclick="model.runTest()" type="button"
+        style="position: absolute; left: 50vw; top: 20px">Test!</button>
+    <div id="result" style="white-space: pre-line; position: absolute; left: 20px; bottom: 20px"></div>
 </body>
 
 </html>
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/js/GLTFLoader.js b/Elements.Wasm/wwwroot/js/GLTFLoader.js
new file mode 100644
index 000000000..b39fa42c6
--- /dev/null
+++ b/Elements.Wasm/wwwroot/js/GLTFLoader.js
@@ -0,0 +1,3186 @@
+/**
+ * @author Rich Tibbett / https://github.com/richtr
+ * @author mrdoob / http://mrdoob.com/
+ * @author Tony Parisi / http://www.tonyparisi.com/
+ * @author Takahiro / https://github.com/takahirox
+ * @author Don McCurdy / https://www.donmccurdy.com
+ */
+
+THREE.GLTFLoader = ( function () {
+
+	function GLTFLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
+		this.dracoLoader = null;
+
+	}
+
+	GLTFLoader.prototype = {
+
+		constructor: GLTFLoader,
+
+		crossOrigin: 'anonymous',
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var scope = this;
+
+			var resourcePath;
+
+			if ( this.resourcePath !== undefined ) {
+
+				resourcePath = this.resourcePath;
+
+			} else if ( this.path !== undefined ) {
+
+				resourcePath = this.path;
+
+			} else {
+
+				resourcePath = THREE.LoaderUtils.extractUrlBase( url );
+
+			}
+
+			// Tells the LoadingManager to track an extra item, which resolves after
+			// the model is fully loaded. This means the count of items loaded will
+			// be incorrect, but ensures manager.onLoad() does not fire early.
+			scope.manager.itemStart( url );
+
+			var _onError = function ( e ) {
+
+				if ( onError ) {
+
+					onError( e );
+
+				} else {
+
+					console.error( e );
+
+				}
+
+				scope.manager.itemError( url );
+				scope.manager.itemEnd( url );
+
+			};
+
+			var loader = new THREE.FileLoader( scope.manager );
+
+			loader.setPath( this.path );
+			loader.setResponseType( 'arraybuffer' );
+
+			loader.load( url, function ( data ) {
+
+				try {
+
+					scope.parse( data, resourcePath, function ( gltf ) {
+
+						onLoad( gltf );
+
+						scope.manager.itemEnd( url );
+
+					}, _onError );
+
+				} catch ( e ) {
+
+					_onError( e );
+
+				}
+
+			}, onProgress, _onError );
+
+		},
+
+		setCrossOrigin: function ( value ) {
+
+			this.crossOrigin = value;
+			return this;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		},
+
+		setResourcePath: function ( value ) {
+
+			this.resourcePath = value;
+			return this;
+
+		},
+
+		setDRACOLoader: function ( dracoLoader ) {
+
+			this.dracoLoader = dracoLoader;
+			return this;
+
+		},
+
+		parse: function ( data, path, onLoad, onError ) {
+
+			var content;
+			var extensions = {};
+
+			if ( typeof data === 'string' ) {
+
+				content = data;
+
+			} else {
+
+				var magic = THREE.LoaderUtils.decodeText( new Uint8Array( data, 0, 4 ) );
+
+				if ( magic === BINARY_EXTENSION_HEADER_MAGIC ) {
+
+					try {
+
+						extensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data );
+
+					} catch ( error ) {
+
+						if ( onError ) onError( error );
+						return;
+
+					}
+
+					content = extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content;
+
+				} else {
+
+					content = THREE.LoaderUtils.decodeText( new Uint8Array( data ) );
+
+				}
+
+			}
+
+			var json = JSON.parse( content );
+
+			if ( json.asset === undefined || json.asset.version[ 0 ] < 2 ) {
+
+				if ( onError ) onError( new Error( 'THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported. Use LegacyGLTFLoader instead.' ) );
+				return;
+
+			}
+
+			if ( json.extensionsUsed ) {
+
+				for ( var i = 0; i < json.extensionsUsed.length; ++ i ) {
+
+					var extensionName = json.extensionsUsed[ i ];
+					var extensionsRequired = json.extensionsRequired || [];
+
+					switch ( extensionName ) {
+
+						case EXTENSIONS.KHR_LIGHTS_PUNCTUAL:
+							extensions[ extensionName ] = new GLTFLightsExtension( json );
+							break;
+
+						case EXTENSIONS.KHR_MATERIALS_UNLIT:
+							extensions[ extensionName ] = new GLTFMaterialsUnlitExtension( json );
+							break;
+
+						case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:
+							extensions[ extensionName ] = new GLTFMaterialsPbrSpecularGlossinessExtension( json );
+							break;
+
+						case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
+							extensions[ extensionName ] = new GLTFDracoMeshCompressionExtension( json, this.dracoLoader );
+							break;
+
+						case EXTENSIONS.MSFT_TEXTURE_DDS:
+							extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] = new GLTFTextureDDSExtension();
+							break;
+
+						case EXTENSIONS.KHR_TEXTURE_TRANSFORM:
+							extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] = new GLTFTextureTransformExtension( json );
+							break;
+
+						default:
+
+							if ( extensionsRequired.indexOf( extensionName ) >= 0 ) {
+
+								console.warn( 'THREE.GLTFLoader: Unknown extension "' + extensionName + '".' );
+
+							}
+
+					}
+
+				}
+
+			}
+
+			var parser = new GLTFParser( json, extensions, {
+
+				path: path || this.resourcePath || '',
+				crossOrigin: this.crossOrigin,
+				manager: this.manager
+
+			} );
+
+			parser.parse( onLoad, onError );
+
+		}
+
+	};
+
+	/* GLTFREGISTRY */
+
+	function GLTFRegistry() {
+
+		var objects = {};
+
+		return	{
+
+			get: function ( key ) {
+
+				return objects[ key ];
+
+			},
+
+			add: function ( key, object ) {
+
+				objects[ key ] = object;
+
+			},
+
+			remove: function ( key ) {
+
+				delete objects[ key ];
+
+			},
+
+			removeAll: function () {
+
+				objects = {};
+
+			}
+
+		};
+
+	}
+
+	/*********************************/
+	/********** EXTENSIONS ***********/
+	/*********************************/
+
+	var EXTENSIONS = {
+		KHR_BINARY_GLTF: 'KHR_binary_glTF',
+		KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',
+		KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',
+		KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
+		KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
+		KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform',
+		MSFT_TEXTURE_DDS: 'MSFT_texture_dds'
+	};
+
+	/**
+	 * DDS Texture Extension
+	 *
+	 * Specification:
+	 * https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/MSFT_texture_dds
+	 *
+	 */
+	function GLTFTextureDDSExtension() {
+
+		if ( ! THREE.DDSLoader ) {
+
+			throw new Error( 'THREE.GLTFLoader: Attempting to load .dds texture without importing THREE.DDSLoader' );
+
+		}
+
+		this.name = EXTENSIONS.MSFT_TEXTURE_DDS;
+		this.ddsLoader = new THREE.DDSLoader();
+
+	}
+
+	/**
+	 * Lights Extension
+	 *
+	 * Specification: PENDING
+	 */
+	function GLTFLightsExtension( json ) {
+
+		this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;
+
+		var extension = ( json.extensions && json.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ] ) || {};
+		this.lightDefs = extension.lights || [];
+
+	}
+
+	GLTFLightsExtension.prototype.loadLight = function ( lightIndex ) {
+
+		var lightDef = this.lightDefs[ lightIndex ];
+		var lightNode;
+
+		var color = new THREE.Color( 0xffffff );
+		if ( lightDef.color !== undefined ) color.fromArray( lightDef.color );
+
+		var range = lightDef.range !== undefined ? lightDef.range : 0;
+
+		switch ( lightDef.type ) {
+
+			case 'directional':
+				lightNode = new THREE.DirectionalLight( color );
+				lightNode.target.position.set( 0, 0, - 1 );
+				lightNode.add( lightNode.target );
+				break;
+
+			case 'point':
+				lightNode = new THREE.PointLight( color );
+				lightNode.distance = range;
+				break;
+
+			case 'spot':
+				lightNode = new THREE.SpotLight( color );
+				lightNode.distance = range;
+				// Handle spotlight properties.
+				lightDef.spot = lightDef.spot || {};
+				lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle : 0;
+				lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0;
+				lightNode.angle = lightDef.spot.outerConeAngle;
+				lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
+				lightNode.target.position.set( 0, 0, - 1 );
+				lightNode.add( lightNode.target );
+				break;
+
+			default:
+				throw new Error( 'THREE.GLTFLoader: Unexpected light type, "' + lightDef.type + '".' );
+
+		}
+
+		// Some lights (e.g. spot) default to a position other than the origin. Reset the position
+		// here, because node-level parsing will only override position if explicitly specified.
+		lightNode.position.set( 0, 0, 0 );
+
+		lightNode.decay = 2;
+
+		if ( lightDef.intensity !== undefined ) lightNode.intensity = lightDef.intensity;
+
+		lightNode.name = lightDef.name || ( 'light_' + lightIndex );
+
+		return Promise.resolve( lightNode );
+
+	};
+
+	/**
+	 * Unlit Materials Extension (pending)
+	 *
+	 * PR: https://github.com/KhronosGroup/glTF/pull/1163
+	 */
+	function GLTFMaterialsUnlitExtension() {
+
+		this.name = EXTENSIONS.KHR_MATERIALS_UNLIT;
+
+	}
+
+	GLTFMaterialsUnlitExtension.prototype.getMaterialType = function () {
+
+		return THREE.MeshBasicMaterial;
+
+	};
+
+	GLTFMaterialsUnlitExtension.prototype.extendParams = function ( materialParams, materialDef, parser ) {
+
+		var pending = [];
+
+		materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
+		materialParams.opacity = 1.0;
+
+		var metallicRoughness = materialDef.pbrMetallicRoughness;
+
+		if ( metallicRoughness ) {
+
+			if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
+
+				var array = metallicRoughness.baseColorFactor;
+
+				materialParams.color.fromArray( array );
+				materialParams.opacity = array[ 3 ];
+
+			}
+
+			if ( metallicRoughness.baseColorTexture !== undefined ) {
+
+				pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture ) );
+
+			}
+
+		}
+
+		return Promise.all( pending );
+
+	};
+
+	/* BINARY EXTENSION */
+
+	var BINARY_EXTENSION_BUFFER_NAME = 'binary_glTF';
+	var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
+	var BINARY_EXTENSION_HEADER_LENGTH = 12;
+	var BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 };
+
+	function GLTFBinaryExtension( data ) {
+
+		this.name = EXTENSIONS.KHR_BINARY_GLTF;
+		this.content = null;
+		this.body = null;
+
+		var headerView = new DataView( data, 0, BINARY_EXTENSION_HEADER_LENGTH );
+
+		this.header = {
+			magic: THREE.LoaderUtils.decodeText( new Uint8Array( data.slice( 0, 4 ) ) ),
+			version: headerView.getUint32( 4, true ),
+			length: headerView.getUint32( 8, true )
+		};
+
+		if ( this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC ) {
+
+			throw new Error( 'THREE.GLTFLoader: Unsupported glTF-Binary header.' );
+
+		} else if ( this.header.version < 2.0 ) {
+
+			throw new Error( 'THREE.GLTFLoader: Legacy binary file detected. Use LegacyGLTFLoader instead.' );
+
+		}
+
+		var chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH );
+		var chunkIndex = 0;
+
+		while ( chunkIndex < chunkView.byteLength ) {
+
+			var chunkLength = chunkView.getUint32( chunkIndex, true );
+			chunkIndex += 4;
+
+			var chunkType = chunkView.getUint32( chunkIndex, true );
+			chunkIndex += 4;
+
+			if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON ) {
+
+				var contentArray = new Uint8Array( data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength );
+				this.content = THREE.LoaderUtils.decodeText( contentArray );
+
+			} else if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN ) {
+
+				var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
+				this.body = data.slice( byteOffset, byteOffset + chunkLength );
+
+			}
+
+			// Clients must ignore chunks with unknown types.
+
+			chunkIndex += chunkLength;
+
+		}
+
+		if ( this.content === null ) {
+
+			throw new Error( 'THREE.GLTFLoader: JSON content not found.' );
+
+		}
+
+	}
+
+	/**
+	 * DRACO Mesh Compression Extension
+	 *
+	 * Specification: https://github.com/KhronosGroup/glTF/pull/874
+	 */
+	function GLTFDracoMeshCompressionExtension( json, dracoLoader ) {
+
+		if ( ! dracoLoader ) {
+
+			throw new Error( 'THREE.GLTFLoader: No DRACOLoader instance provided.' );
+
+		}
+
+		this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
+		this.json = json;
+		this.dracoLoader = dracoLoader;
+
+	}
+
+	GLTFDracoMeshCompressionExtension.prototype.decodePrimitive = function ( primitive, parser ) {
+
+		var json = this.json;
+		var dracoLoader = this.dracoLoader;
+		var bufferViewIndex = primitive.extensions[ this.name ].bufferView;
+		var gltfAttributeMap = primitive.extensions[ this.name ].attributes;
+		var threeAttributeMap = {};
+		var attributeNormalizedMap = {};
+		var attributeTypeMap = {};
+
+		for ( var attributeName in gltfAttributeMap ) {
+
+			var threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
+
+			threeAttributeMap[ threeAttributeName ] = gltfAttributeMap[ attributeName ];
+
+		}
+
+		for ( attributeName in primitive.attributes ) {
+
+			var threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
+
+			if ( gltfAttributeMap[ attributeName ] !== undefined ) {
+
+				var accessorDef = json.accessors[ primitive.attributes[ attributeName ] ];
+				var componentType = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
+
+				attributeTypeMap[ threeAttributeName ] = componentType;
+				attributeNormalizedMap[ threeAttributeName ] = accessorDef.normalized === true;
+
+			}
+
+		}
+
+		return parser.getDependency( 'bufferView', bufferViewIndex ).then( function ( bufferView ) {
+
+			return new Promise( function ( resolve ) {
+
+				dracoLoader.decodeDracoFile( bufferView, function ( geometry ) {
+
+					for ( var attributeName in geometry.attributes ) {
+
+						var attribute = geometry.attributes[ attributeName ];
+						var normalized = attributeNormalizedMap[ attributeName ];
+
+						if ( normalized !== undefined ) attribute.normalized = normalized;
+
+					}
+
+					resolve( geometry );
+
+				}, threeAttributeMap, attributeTypeMap );
+
+			} );
+
+		} );
+
+	};
+
+	/**
+	 * Texture Transform Extension
+	 *
+	 * Specification:
+	 */
+	function GLTFTextureTransformExtension() {
+
+		this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM;
+
+	}
+
+	GLTFTextureTransformExtension.prototype.extendTexture = function ( texture, transform ) {
+
+		texture = texture.clone();
+
+		if ( transform.offset !== undefined ) {
+
+			texture.offset.fromArray( transform.offset );
+
+		}
+
+		if ( transform.rotation !== undefined ) {
+
+			texture.rotation = transform.rotation;
+
+		}
+
+		if ( transform.scale !== undefined ) {
+
+			texture.repeat.fromArray( transform.scale );
+
+		}
+
+		if ( transform.texCoord !== undefined ) {
+
+			console.warn( 'THREE.GLTFLoader: Custom UV sets in "' + this.name + '" extension not yet supported.' );
+
+		}
+
+		texture.needsUpdate = true;
+
+		return texture;
+
+	};
+
+	/**
+	 * Specular-Glossiness Extension
+	 *
+	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness
+	 */
+	function GLTFMaterialsPbrSpecularGlossinessExtension() {
+
+		return {
+
+			name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,
+
+			specularGlossinessParams: [
+				'color',
+				'map',
+				'lightMap',
+				'lightMapIntensity',
+				'aoMap',
+				'aoMapIntensity',
+				'emissive',
+				'emissiveIntensity',
+				'emissiveMap',
+				'bumpMap',
+				'bumpScale',
+				'normalMap',
+				'displacementMap',
+				'displacementScale',
+				'displacementBias',
+				'specularMap',
+				'specular',
+				'glossinessMap',
+				'glossiness',
+				'alphaMap',
+				'envMap',
+				'envMapIntensity',
+				'refractionRatio',
+			],
+
+			getMaterialType: function () {
+
+				return THREE.ShaderMaterial;
+
+			},
+
+			extendParams: function ( materialParams, materialDef, parser ) {
+
+				var pbrSpecularGlossiness = materialDef.extensions[ this.name ];
+
+				var shader = THREE.ShaderLib[ 'standard' ];
+
+				var uniforms = THREE.UniformsUtils.clone( shader.uniforms );
+
+				var specularMapParsFragmentChunk = [
+					'#ifdef USE_SPECULARMAP',
+					'	uniform sampler2D specularMap;',
+					'#endif'
+				].join( '\n' );
+
+				var glossinessMapParsFragmentChunk = [
+					'#ifdef USE_GLOSSINESSMAP',
+					'	uniform sampler2D glossinessMap;',
+					'#endif'
+				].join( '\n' );
+
+				var specularMapFragmentChunk = [
+					'vec3 specularFactor = specular;',
+					'#ifdef USE_SPECULARMAP',
+					'	vec4 texelSpecular = texture2D( specularMap, vUv );',
+					'	texelSpecular = sRGBToLinear( texelSpecular );',
+					'	// reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture',
+					'	specularFactor *= texelSpecular.rgb;',
+					'#endif'
+				].join( '\n' );
+
+				var glossinessMapFragmentChunk = [
+					'float glossinessFactor = glossiness;',
+					'#ifdef USE_GLOSSINESSMAP',
+					'	vec4 texelGlossiness = texture2D( glossinessMap, vUv );',
+					'	// reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture',
+					'	glossinessFactor *= texelGlossiness.a;',
+					'#endif'
+				].join( '\n' );
+
+				var lightPhysicalFragmentChunk = [
+					'PhysicalMaterial material;',
+					'material.diffuseColor = diffuseColor.rgb;',
+					'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );',
+					'material.specularColor = specularFactor.rgb;',
+				].join( '\n' );
+
+				var fragmentShader = shader.fragmentShader
+					.replace( 'uniform float roughness;', 'uniform vec3 specular;' )
+					.replace( 'uniform float metalness;', 'uniform float glossiness;' )
+					.replace( '#include <roughnessmap_pars_fragment>', specularMapParsFragmentChunk )
+					.replace( '#include <metalnessmap_pars_fragment>', glossinessMapParsFragmentChunk )
+					.replace( '#include <roughnessmap_fragment>', specularMapFragmentChunk )
+					.replace( '#include <metalnessmap_fragment>', glossinessMapFragmentChunk )
+					.replace( '#include <lights_physical_fragment>', lightPhysicalFragmentChunk );
+
+				delete uniforms.roughness;
+				delete uniforms.metalness;
+				delete uniforms.roughnessMap;
+				delete uniforms.metalnessMap;
+
+				uniforms.specular = { value: new THREE.Color().setHex( 0x111111 ) };
+				uniforms.glossiness = { value: 0.5 };
+				uniforms.specularMap = { value: null };
+				uniforms.glossinessMap = { value: null };
+
+				materialParams.vertexShader = shader.vertexShader;
+				materialParams.fragmentShader = fragmentShader;
+				materialParams.uniforms = uniforms;
+				materialParams.defines = { 'STANDARD': '' };
+
+				materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
+				materialParams.opacity = 1.0;
+
+				var pending = [];
+
+				if ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) {
+
+					var array = pbrSpecularGlossiness.diffuseFactor;
+
+					materialParams.color.fromArray( array );
+					materialParams.opacity = array[ 3 ];
+
+				}
+
+				if ( pbrSpecularGlossiness.diffuseTexture !== undefined ) {
+
+					pending.push( parser.assignTexture( materialParams, 'map', pbrSpecularGlossiness.diffuseTexture ) );
+
+				}
+
+				materialParams.emissive = new THREE.Color( 0.0, 0.0, 0.0 );
+				materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
+				materialParams.specular = new THREE.Color( 1.0, 1.0, 1.0 );
+
+				if ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) {
+
+					materialParams.specular.fromArray( pbrSpecularGlossiness.specularFactor );
+
+				}
+
+				if ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) {
+
+					var specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture;
+					pending.push( parser.assignTexture( materialParams, 'glossinessMap', specGlossMapDef ) );
+					pending.push( parser.assignTexture( materialParams, 'specularMap', specGlossMapDef ) );
+
+				}
+
+				return Promise.all( pending );
+
+			},
+
+			createMaterial: function ( params ) {
+
+				// setup material properties based on MeshStandardMaterial for Specular-Glossiness
+
+				var material = new THREE.ShaderMaterial( {
+					defines: params.defines,
+					vertexShader: params.vertexShader,
+					fragmentShader: params.fragmentShader,
+					uniforms: params.uniforms,
+					fog: true,
+					lights: true,
+					opacity: params.opacity,
+					transparent: params.transparent
+				} );
+
+				material.isGLTFSpecularGlossinessMaterial = true;
+
+				material.color = params.color;
+
+				material.map = params.map === undefined ? null : params.map;
+
+				material.lightMap = null;
+				material.lightMapIntensity = 1.0;
+
+				material.aoMap = params.aoMap === undefined ? null : params.aoMap;
+				material.aoMapIntensity = 1.0;
+
+				material.emissive = params.emissive;
+				material.emissiveIntensity = 1.0;
+				material.emissiveMap = params.emissiveMap === undefined ? null : params.emissiveMap;
+
+				material.bumpMap = params.bumpMap === undefined ? null : params.bumpMap;
+				material.bumpScale = 1;
+
+				material.normalMap = params.normalMap === undefined ? null : params.normalMap;
+
+				if ( params.normalScale ) material.normalScale = params.normalScale;
+
+				material.displacementMap = null;
+				material.displacementScale = 1;
+				material.displacementBias = 0;
+
+				material.specularMap = params.specularMap === undefined ? null : params.specularMap;
+				material.specular = params.specular;
+
+				material.glossinessMap = params.glossinessMap === undefined ? null : params.glossinessMap;
+				material.glossiness = params.glossiness;
+
+				material.alphaMap = null;
+
+				material.envMap = params.envMap === undefined ? null : params.envMap;
+				material.envMapIntensity = 1.0;
+
+				material.refractionRatio = 0.98;
+
+				material.extensions.derivatives = true;
+
+				return material;
+
+			},
+
+			/**
+			 * Clones a GLTFSpecularGlossinessMaterial instance. The ShaderMaterial.copy() method can
+			 * copy only properties it knows about or inherits, and misses many properties that would
+			 * normally be defined by MeshStandardMaterial.
+			 *
+			 * This method allows GLTFSpecularGlossinessMaterials to be cloned in the process of
+			 * loading a glTF model, but cloning later (e.g. by the user) would require these changes
+			 * AND also updating `.onBeforeRender` on the parent mesh.
+			 *
+			 * @param  {THREE.ShaderMaterial} source
+			 * @return {THREE.ShaderMaterial}
+			 */
+			cloneMaterial: function ( source ) {
+
+				var target = source.clone();
+
+				target.isGLTFSpecularGlossinessMaterial = true;
+
+				var params = this.specularGlossinessParams;
+
+				for ( var i = 0, il = params.length; i < il; i ++ ) {
+
+					var value = source[ params[ i ] ];
+					target[ params[ i ] ] = ( value && value.isColor ) ? value.clone() : value;
+
+				}
+
+				return target;
+
+			},
+
+			// Here's based on refreshUniformsCommon() and refreshUniformsStandard() in WebGLRenderer.
+			refreshUniforms: function ( renderer, scene, camera, geometry, material, group ) {
+
+				if ( material.isGLTFSpecularGlossinessMaterial !== true ) {
+
+					return;
+
+				}
+
+				var uniforms = material.uniforms;
+				var defines = material.defines;
+
+				uniforms.opacity.value = material.opacity;
+
+				uniforms.diffuse.value.copy( material.color );
+				uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );
+
+				uniforms.map.value = material.map;
+				uniforms.specularMap.value = material.specularMap;
+				uniforms.alphaMap.value = material.alphaMap;
+
+				uniforms.lightMap.value = material.lightMap;
+				uniforms.lightMapIntensity.value = material.lightMapIntensity;
+
+				uniforms.aoMap.value = material.aoMap;
+				uniforms.aoMapIntensity.value = material.aoMapIntensity;
+
+				// uv repeat and offset setting priorities
+				// 1. color map
+				// 2. specular map
+				// 3. normal map
+				// 4. bump map
+				// 5. alpha map
+				// 6. emissive map
+
+				var uvScaleMap;
+
+				if ( material.map ) {
+
+					uvScaleMap = material.map;
+
+				} else if ( material.specularMap ) {
+
+					uvScaleMap = material.specularMap;
+
+				} else if ( material.displacementMap ) {
+
+					uvScaleMap = material.displacementMap;
+
+				} else if ( material.normalMap ) {
+
+					uvScaleMap = material.normalMap;
+
+				} else if ( material.bumpMap ) {
+
+					uvScaleMap = material.bumpMap;
+
+				} else if ( material.glossinessMap ) {
+
+					uvScaleMap = material.glossinessMap;
+
+				} else if ( material.alphaMap ) {
+
+					uvScaleMap = material.alphaMap;
+
+				} else if ( material.emissiveMap ) {
+
+					uvScaleMap = material.emissiveMap;
+
+				}
+
+				if ( uvScaleMap !== undefined ) {
+
+					// backwards compatibility
+					if ( uvScaleMap.isWebGLRenderTarget ) {
+
+						uvScaleMap = uvScaleMap.texture;
+
+					}
+
+					if ( uvScaleMap.matrixAutoUpdate === true ) {
+
+						uvScaleMap.updateMatrix();
+
+					}
+
+					uniforms.uvTransform.value.copy( uvScaleMap.matrix );
+
+				}
+
+				if ( material.envMap ) {
+
+					uniforms.envMap.value = material.envMap;
+					uniforms.envMapIntensity.value = material.envMapIntensity;
+
+					// don't flip CubeTexture envMaps, flip everything else:
+					//  WebGLRenderTargetCube will be flipped for backwards compatibility
+					//  WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture
+					// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future
+					uniforms.flipEnvMap.value = material.envMap.isCubeTexture ? - 1 : 1;
+
+					uniforms.reflectivity.value = material.reflectivity;
+					uniforms.refractionRatio.value = material.refractionRatio;
+
+					uniforms.maxMipLevel.value = renderer.properties.get( material.envMap ).__maxMipLevel;
+
+				}
+
+				uniforms.specular.value.copy( material.specular );
+				uniforms.glossiness.value = material.glossiness;
+
+				uniforms.glossinessMap.value = material.glossinessMap;
+
+				uniforms.emissiveMap.value = material.emissiveMap;
+				uniforms.bumpMap.value = material.bumpMap;
+				uniforms.normalMap.value = material.normalMap;
+
+				uniforms.displacementMap.value = material.displacementMap;
+				uniforms.displacementScale.value = material.displacementScale;
+				uniforms.displacementBias.value = material.displacementBias;
+
+				if ( uniforms.glossinessMap.value !== null && defines.USE_GLOSSINESSMAP === undefined ) {
+
+					defines.USE_GLOSSINESSMAP = '';
+					// set USE_ROUGHNESSMAP to enable vUv
+					defines.USE_ROUGHNESSMAP = '';
+
+				}
+
+				if ( uniforms.glossinessMap.value === null && defines.USE_GLOSSINESSMAP !== undefined ) {
+
+					delete defines.USE_GLOSSINESSMAP;
+					delete defines.USE_ROUGHNESSMAP;
+
+				}
+
+			}
+
+		};
+
+	}
+
+	/*********************************/
+	/********** INTERPOLATION ********/
+	/*********************************/
+
+	// Spline Interpolation
+	// Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation
+	function GLTFCubicSplineInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+		THREE.Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
+
+	}
+
+	GLTFCubicSplineInterpolant.prototype = Object.create( THREE.Interpolant.prototype );
+	GLTFCubicSplineInterpolant.prototype.constructor = GLTFCubicSplineInterpolant;
+
+	GLTFCubicSplineInterpolant.prototype.copySampleValue_ = function ( index ) {
+
+		// Copies a sample value to the result buffer. See description of glTF
+		// CUBICSPLINE values layout in interpolate_() function below.
+
+		var result = this.resultBuffer,
+			values = this.sampleValues,
+			valueSize = this.valueSize,
+			offset = index * valueSize * 3 + valueSize;
+
+		for ( var i = 0; i !== valueSize; i ++ ) {
+
+			result[ i ] = values[ offset + i ];
+
+		}
+
+		return result;
+
+	};
+
+	GLTFCubicSplineInterpolant.prototype.beforeStart_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
+
+	GLTFCubicSplineInterpolant.prototype.afterEnd_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
+
+	GLTFCubicSplineInterpolant.prototype.interpolate_ = function ( i1, t0, t, t1 ) {
+
+		var result = this.resultBuffer;
+		var values = this.sampleValues;
+		var stride = this.valueSize;
+
+		var stride2 = stride * 2;
+		var stride3 = stride * 3;
+
+		var td = t1 - t0;
+
+		var p = ( t - t0 ) / td;
+		var pp = p * p;
+		var ppp = pp * p;
+
+		var offset1 = i1 * stride3;
+		var offset0 = offset1 - stride3;
+
+		var s2 = - 2 * ppp + 3 * pp;
+		var s3 = ppp - pp;
+		var s0 = 1 - s2;
+		var s1 = s3 - pp + p;
+
+		// Layout of keyframe output values for CUBICSPLINE animations:
+		//   [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]
+		for ( var i = 0; i !== stride; i ++ ) {
+
+			var p0 = values[ offset0 + i + stride ]; // splineVertex_k
+			var m0 = values[ offset0 + i + stride2 ] * td; // outTangent_k * (t_k+1 - t_k)
+			var p1 = values[ offset1 + i + stride ]; // splineVertex_k+1
+			var m1 = values[ offset1 + i ] * td; // inTangent_k+1 * (t_k+1 - t_k)
+
+			result[ i ] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1;
+
+		}
+
+		return result;
+
+	};
+
+	/*********************************/
+	/********** INTERNALS ************/
+	/*********************************/
+
+	/* CONSTANTS */
+
+	var WEBGL_CONSTANTS = {
+		FLOAT: 5126,
+		//FLOAT_MAT2: 35674,
+		FLOAT_MAT3: 35675,
+		FLOAT_MAT4: 35676,
+		FLOAT_VEC2: 35664,
+		FLOAT_VEC3: 35665,
+		FLOAT_VEC4: 35666,
+		LINEAR: 9729,
+		REPEAT: 10497,
+		SAMPLER_2D: 35678,
+		POINTS: 0,
+		LINES: 1,
+		LINE_LOOP: 2,
+		LINE_STRIP: 3,
+		TRIANGLES: 4,
+		TRIANGLE_STRIP: 5,
+		TRIANGLE_FAN: 6,
+		UNSIGNED_BYTE: 5121,
+		UNSIGNED_SHORT: 5123
+	};
+
+	var WEBGL_TYPE = {
+		5126: Number,
+		//35674: THREE.Matrix2,
+		35675: THREE.Matrix3,
+		35676: THREE.Matrix4,
+		35664: THREE.Vector2,
+		35665: THREE.Vector3,
+		35666: THREE.Vector4,
+		35678: THREE.Texture
+	};
+
+	var WEBGL_COMPONENT_TYPES = {
+		5120: Int8Array,
+		5121: Uint8Array,
+		5122: Int16Array,
+		5123: Uint16Array,
+		5125: Uint32Array,
+		5126: Float32Array
+	};
+
+	var WEBGL_FILTERS = {
+		9728: THREE.NearestFilter,
+		9729: THREE.LinearFilter,
+		9984: THREE.NearestMipMapNearestFilter,
+		9985: THREE.LinearMipMapNearestFilter,
+		9986: THREE.NearestMipMapLinearFilter,
+		9987: THREE.LinearMipMapLinearFilter
+	};
+
+	var WEBGL_WRAPPINGS = {
+		33071: THREE.ClampToEdgeWrapping,
+		33648: THREE.MirroredRepeatWrapping,
+		10497: THREE.RepeatWrapping
+	};
+
+	var WEBGL_SIDES = {
+		1028: THREE.BackSide, // Culling front
+		1029: THREE.FrontSide // Culling back
+		//1032: THREE.NoSide   // Culling front and back, what to do?
+	};
+
+	var WEBGL_DEPTH_FUNCS = {
+		512: THREE.NeverDepth,
+		513: THREE.LessDepth,
+		514: THREE.EqualDepth,
+		515: THREE.LessEqualDepth,
+		516: THREE.GreaterEqualDepth,
+		517: THREE.NotEqualDepth,
+		518: THREE.GreaterEqualDepth,
+		519: THREE.AlwaysDepth
+	};
+
+	var WEBGL_BLEND_EQUATIONS = {
+		32774: THREE.AddEquation,
+		32778: THREE.SubtractEquation,
+		32779: THREE.ReverseSubtractEquation
+	};
+
+	var WEBGL_BLEND_FUNCS = {
+		0: THREE.ZeroFactor,
+		1: THREE.OneFactor,
+		768: THREE.SrcColorFactor,
+		769: THREE.OneMinusSrcColorFactor,
+		770: THREE.SrcAlphaFactor,
+		771: THREE.OneMinusSrcAlphaFactor,
+		772: THREE.DstAlphaFactor,
+		773: THREE.OneMinusDstAlphaFactor,
+		774: THREE.DstColorFactor,
+		775: THREE.OneMinusDstColorFactor,
+		776: THREE.SrcAlphaSaturateFactor
+		// The followings are not supported by Three.js yet
+		//32769: CONSTANT_COLOR,
+		//32770: ONE_MINUS_CONSTANT_COLOR,
+		//32771: CONSTANT_ALPHA,
+		//32772: ONE_MINUS_CONSTANT_COLOR
+	};
+
+	var WEBGL_TYPE_SIZES = {
+		'SCALAR': 1,
+		'VEC2': 2,
+		'VEC3': 3,
+		'VEC4': 4,
+		'MAT2': 4,
+		'MAT3': 9,
+		'MAT4': 16
+	};
+
+	var ATTRIBUTES = {
+		POSITION: 'position',
+		NORMAL: 'normal',
+		TANGENT: 'tangent',
+		TEXCOORD_0: 'uv',
+		TEXCOORD_1: 'uv2',
+		COLOR_0: 'color',
+		WEIGHTS_0: 'skinWeight',
+		JOINTS_0: 'skinIndex',
+	};
+
+	var PATH_PROPERTIES = {
+		scale: 'scale',
+		translation: 'position',
+		rotation: 'quaternion',
+		weights: 'morphTargetInfluences'
+	};
+
+	var INTERPOLATION = {
+		CUBICSPLINE: undefined, // We use a custom interpolant (GLTFCubicSplineInterpolation) for CUBICSPLINE tracks. Each
+		                        // keyframe track will be initialized with a default interpolation type, then modified.
+		LINEAR: THREE.InterpolateLinear,
+		STEP: THREE.InterpolateDiscrete
+	};
+
+	var STATES_ENABLES = {
+		2884: 'CULL_FACE',
+		2929: 'DEPTH_TEST',
+		3042: 'BLEND',
+		3089: 'SCISSOR_TEST',
+		32823: 'POLYGON_OFFSET_FILL',
+		32926: 'SAMPLE_ALPHA_TO_COVERAGE'
+	};
+
+	var ALPHA_MODES = {
+		OPAQUE: 'OPAQUE',
+		MASK: 'MASK',
+		BLEND: 'BLEND'
+	};
+
+	var MIME_TYPE_FORMATS = {
+		'image/png': THREE.RGBAFormat,
+		'image/jpeg': THREE.RGBFormat
+	};
+
+	/* UTILITY FUNCTIONS */
+
+	function resolveURL( url, path ) {
+
+		// Invalid URL
+		if ( typeof url !== 'string' || url === '' ) return '';
+
+		// Absolute URL http://,https://,//
+		if ( /^(https?:)?\/\//i.test( url ) ) return url;
+
+		// Data URI
+		if ( /^data:.*,.*$/i.test( url ) ) return url;
+
+		// Blob URL
+		if ( /^blob:.*$/i.test( url ) ) return url;
+
+		// Relative URL
+		return path + url;
+
+	}
+
+	var defaultMaterial;
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material
+	 */
+	function createDefaultMaterial() {
+
+		defaultMaterial = defaultMaterial || new THREE.MeshStandardMaterial( {
+			color: 0xFFFFFF,
+			emissive: 0x000000,
+			metalness: 1,
+			roughness: 1,
+			transparent: false,
+			depthTest: true,
+			side: THREE.FrontSide
+		} );
+
+		return defaultMaterial;
+
+	}
+
+	function addUnknownExtensionsToUserData( knownExtensions, object, objectDef ) {
+
+		// Add unknown glTF extensions to an object's userData.
+
+		for ( var name in objectDef.extensions ) {
+
+			if ( knownExtensions[ name ] === undefined ) {
+
+				object.userData.gltfExtensions = object.userData.gltfExtensions || {};
+				object.userData.gltfExtensions[ name ] = objectDef.extensions[ name ];
+
+			}
+
+		}
+
+	}
+
+	/**
+	 * @param {THREE.Object3D|THREE.Material|THREE.BufferGeometry} object
+	 * @param {GLTF.definition} gltfDef
+	 */
+	function assignExtrasToUserData( object, gltfDef ) {
+
+		if ( gltfDef.extras !== undefined ) {
+
+			if ( typeof gltfDef.extras === 'object' ) {
+
+				Object.assign( object.userData, gltfDef.extras );
+
+			} else {
+
+				console.warn( 'THREE.GLTFLoader: Ignoring primitive type .extras, ' + gltfDef.extras );
+
+			}
+
+		}
+
+	}
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#morph-targets
+	 *
+	 * @param {THREE.BufferGeometry} geometry
+	 * @param {Array<GLTF.Target>} targets
+	 * @param {GLTFParser} parser
+	 * @return {Promise<THREE.BufferGeometry>}
+	 */
+	function addMorphTargets( geometry, targets, parser ) {
+
+		var hasMorphPosition = false;
+		var hasMorphNormal = false;
+
+		for ( var i = 0, il = targets.length; i < il; i ++ ) {
+
+			var target = targets[ i ];
+
+			if ( target.POSITION !== undefined ) hasMorphPosition = true;
+			if ( target.NORMAL !== undefined ) hasMorphNormal = true;
+
+			if ( hasMorphPosition && hasMorphNormal ) break;
+
+		}
+
+		if ( ! hasMorphPosition && ! hasMorphNormal ) return Promise.resolve( geometry );
+
+		var pendingPositionAccessors = [];
+		var pendingNormalAccessors = [];
+
+		for ( var i = 0, il = targets.length; i < il; i ++ ) {
+
+			var target = targets[ i ];
+
+			if ( hasMorphPosition ) {
+
+				var pendingAccessor = target.POSITION !== undefined
+					? parser.getDependency( 'accessor', target.POSITION )
+					: geometry.attributes.position;
+
+				pendingPositionAccessors.push( pendingAccessor );
+
+			}
+
+			if ( hasMorphNormal ) {
+
+				var pendingAccessor = target.NORMAL !== undefined
+					? parser.getDependency( 'accessor', target.NORMAL )
+					: geometry.attributes.normal;
+
+				pendingNormalAccessors.push( pendingAccessor );
+
+			}
+
+		}
+
+		return Promise.all( [
+			Promise.all( pendingPositionAccessors ),
+			Promise.all( pendingNormalAccessors )
+		] ).then( function ( accessors ) {
+
+			var morphPositions = accessors[ 0 ];
+			var morphNormals = accessors[ 1 ];
+
+			// Clone morph target accessors before modifying them.
+
+			for ( var i = 0, il = morphPositions.length; i < il; i ++ ) {
+
+				if ( geometry.attributes.position === morphPositions[ i ] ) continue;
+
+				morphPositions[ i ] = cloneBufferAttribute( morphPositions[ i ] );
+
+			}
+
+			for ( var i = 0, il = morphNormals.length; i < il; i ++ ) {
+
+				if ( geometry.attributes.normal === morphNormals[ i ] ) continue;
+
+				morphNormals[ i ] = cloneBufferAttribute( morphNormals[ i ] );
+
+			}
+
+			for ( var i = 0, il = targets.length; i < il; i ++ ) {
+
+				var target = targets[ i ];
+				var attributeName = 'morphTarget' + i;
+
+				if ( hasMorphPosition ) {
+
+					// Three.js morph position is absolute value. The formula is
+					//   basePosition
+					//     + weight0 * ( morphPosition0 - basePosition )
+					//     + weight1 * ( morphPosition1 - basePosition )
+					//     ...
+					// while the glTF one is relative
+					//   basePosition
+					//     + weight0 * glTFmorphPosition0
+					//     + weight1 * glTFmorphPosition1
+					//     ...
+					// then we need to convert from relative to absolute here.
+
+					if ( target.POSITION !== undefined ) {
+
+						var positionAttribute = morphPositions[ i ];
+						positionAttribute.name = attributeName;
+
+						var position = geometry.attributes.position;
+
+						for ( var j = 0, jl = positionAttribute.count; j < jl; j ++ ) {
+
+							positionAttribute.setXYZ(
+								j,
+								positionAttribute.getX( j ) + position.getX( j ),
+								positionAttribute.getY( j ) + position.getY( j ),
+								positionAttribute.getZ( j ) + position.getZ( j )
+							);
+
+						}
+
+					}
+
+				}
+
+				if ( hasMorphNormal ) {
+
+					// see target.POSITION's comment
+
+					if ( target.NORMAL !== undefined ) {
+
+						var normalAttribute = morphNormals[ i ];
+						normalAttribute.name = attributeName;
+
+						var normal = geometry.attributes.normal;
+
+						for ( var j = 0, jl = normalAttribute.count; j < jl; j ++ ) {
+
+							normalAttribute.setXYZ(
+								j,
+								normalAttribute.getX( j ) + normal.getX( j ),
+								normalAttribute.getY( j ) + normal.getY( j ),
+								normalAttribute.getZ( j ) + normal.getZ( j )
+							);
+
+						}
+
+					}
+
+				}
+
+			}
+
+			if ( hasMorphPosition ) geometry.morphAttributes.position = morphPositions;
+			if ( hasMorphNormal ) geometry.morphAttributes.normal = morphNormals;
+
+			return geometry;
+
+		} );
+
+	}
+
+	/**
+	 * @param {THREE.Mesh} mesh
+	 * @param {GLTF.Mesh} meshDef
+	 */
+	function updateMorphTargets( mesh, meshDef ) {
+
+		mesh.updateMorphTargets();
+
+		if ( meshDef.weights !== undefined ) {
+
+			for ( var i = 0, il = meshDef.weights.length; i < il; i ++ ) {
+
+				mesh.morphTargetInfluences[ i ] = meshDef.weights[ i ];
+
+			}
+
+		}
+
+		// .extras has user-defined data, so check that .extras.targetNames is an array.
+		if ( meshDef.extras && Array.isArray( meshDef.extras.targetNames ) ) {
+
+			var targetNames = meshDef.extras.targetNames;
+
+			if ( mesh.morphTargetInfluences.length === targetNames.length ) {
+
+				mesh.morphTargetDictionary = {};
+
+				for ( var i = 0, il = targetNames.length; i < il; i ++ ) {
+
+					mesh.morphTargetDictionary[ targetNames[ i ] ] = i;
+
+				}
+
+			} else {
+
+				console.warn( 'THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.' );
+
+			}
+
+		}
+
+	}
+	function isObjectEqual( a, b ) {
+
+		if ( Object.keys( a ).length !== Object.keys( b ).length ) return false;
+
+		for ( var key in a ) {
+
+			if ( a[ key ] !== b[ key ] ) return false;
+
+		}
+
+		return true;
+
+	}
+
+	function createPrimitiveKey( primitiveDef ) {
+
+		var dracoExtension = primitiveDef.extensions && primitiveDef.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ];
+		var geometryKey;
+
+		if ( dracoExtension ) {
+
+			geometryKey = 'draco:' + dracoExtension.bufferView
+				+ ':' + dracoExtension.indices
+				+ ':' + createAttributesKey( dracoExtension.attributes );
+
+		} else {
+
+			geometryKey = primitiveDef.indices + ':' + createAttributesKey( primitiveDef.attributes ) + ':' + primitiveDef.mode;
+
+		}
+
+		return geometryKey;
+
+	}
+
+	function createAttributesKey( attributes ) {
+
+		var attributesKey = '';
+
+		var keys = Object.keys( attributes ).sort();
+
+		for ( var i = 0, il = keys.length; i < il; i ++ ) {
+
+			attributesKey += keys[ i ] + ':' + attributes[ keys[ i ] ] + ';';
+
+		}
+
+		return attributesKey;
+
+	}
+
+	function cloneBufferAttribute( attribute ) {
+
+		if ( attribute.isInterleavedBufferAttribute ) {
+
+			var count = attribute.count;
+			var itemSize = attribute.itemSize;
+			var array = attribute.array.slice( 0, count * itemSize );
+
+			for ( var i = 0, j = 0; i < count; ++ i ) {
+
+				array[ j ++ ] = attribute.getX( i );
+				if ( itemSize >= 2 ) array[ j ++ ] = attribute.getY( i );
+				if ( itemSize >= 3 ) array[ j ++ ] = attribute.getZ( i );
+				if ( itemSize >= 4 ) array[ j ++ ] = attribute.getW( i );
+
+			}
+
+			return new THREE.BufferAttribute( array, itemSize, attribute.normalized );
+
+		}
+
+		return attribute.clone();
+
+	}
+
+	/* GLTF PARSER */
+
+	function GLTFParser( json, extensions, options ) {
+
+		this.json = json || {};
+		this.extensions = extensions || {};
+		this.options = options || {};
+
+		// loader object cache
+		this.cache = new GLTFRegistry();
+
+		// BufferGeometry caching
+		this.primitiveCache = {};
+
+		this.textureLoader = new THREE.TextureLoader( this.options.manager );
+		this.textureLoader.setCrossOrigin( this.options.crossOrigin );
+
+		this.fileLoader = new THREE.FileLoader( this.options.manager );
+		this.fileLoader.setResponseType( 'arraybuffer' );
+
+	}
+
+	GLTFParser.prototype.parse = function ( onLoad, onError ) {
+
+		var parser = this;
+		var json = this.json;
+		var extensions = this.extensions;
+
+		// Clear the loader cache
+		this.cache.removeAll();
+
+		// Mark the special nodes/meshes in json for efficient parse
+		this.markDefs();
+
+		Promise.all( [
+
+			this.getDependencies( 'scene' ),
+			this.getDependencies( 'animation' ),
+			this.getDependencies( 'camera' ),
+
+		] ).then( function ( dependencies ) {
+
+			var result = {
+				scene: dependencies[ 0 ][ json.scene || 0 ],
+				scenes: dependencies[ 0 ],
+				animations: dependencies[ 1 ],
+				cameras: dependencies[ 2 ],
+				asset: json.asset,
+				parser: parser,
+				userData: {}
+			};
+
+			addUnknownExtensionsToUserData( extensions, result, json );
+
+			onLoad( result );
+
+		} ).catch( onError );
+
+	};
+
+	/**
+	 * Marks the special nodes/meshes in json for efficient parse.
+	 */
+	GLTFParser.prototype.markDefs = function () {
+
+		var nodeDefs = this.json.nodes || [];
+		var skinDefs = this.json.skins || [];
+		var meshDefs = this.json.meshes || [];
+
+		var meshReferences = {};
+		var meshUses = {};
+
+		// Nothing in the node definition indicates whether it is a Bone or an
+		// Object3D. Use the skins' joint references to mark bones.
+		for ( var skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex ++ ) {
+
+			var joints = skinDefs[ skinIndex ].joints;
+
+			for ( var i = 0, il = joints.length; i < il; i ++ ) {
+
+				nodeDefs[ joints[ i ] ].isBone = true;
+
+			}
+
+		}
+
+		// Meshes can (and should) be reused by multiple nodes in a glTF asset. To
+		// avoid having more than one THREE.Mesh with the same name, count
+		// references and rename instances below.
+		//
+		// Example: CesiumMilkTruck sample model reuses "Wheel" meshes.
+		for ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {
+
+			var nodeDef = nodeDefs[ nodeIndex ];
+
+			if ( nodeDef.mesh !== undefined ) {
+
+				if ( meshReferences[ nodeDef.mesh ] === undefined ) {
+
+					meshReferences[ nodeDef.mesh ] = meshUses[ nodeDef.mesh ] = 0;
+
+				}
+
+				meshReferences[ nodeDef.mesh ] ++;
+
+				// Nothing in the mesh definition indicates whether it is
+				// a SkinnedMesh or Mesh. Use the node's mesh reference
+				// to mark SkinnedMesh if node has skin.
+				if ( nodeDef.skin !== undefined ) {
+
+					meshDefs[ nodeDef.mesh ].isSkinnedMesh = true;
+
+				}
+
+			}
+
+		}
+
+		this.json.meshReferences = meshReferences;
+		this.json.meshUses = meshUses;
+
+	};
+
+	/**
+	 * Requests the specified dependency asynchronously, with caching.
+	 * @param {string} type
+	 * @param {number} index
+	 * @return {Promise<THREE.Object3D|THREE.Material|THREE.Texture|THREE.AnimationClip|ArrayBuffer|Object>}
+	 */
+	GLTFParser.prototype.getDependency = function ( type, index ) {
+
+		var cacheKey = type + ':' + index;
+		var dependency = this.cache.get( cacheKey );
+
+		if ( ! dependency ) {
+
+			switch ( type ) {
+
+				case 'scene':
+					dependency = this.loadScene( index );
+					break;
+
+				case 'node':
+					dependency = this.loadNode( index );
+					break;
+
+				case 'mesh':
+					dependency = this.loadMesh( index );
+					break;
+
+				case 'accessor':
+					dependency = this.loadAccessor( index );
+					break;
+
+				case 'bufferView':
+					dependency = this.loadBufferView( index );
+					break;
+
+				case 'buffer':
+					dependency = this.loadBuffer( index );
+					break;
+
+				case 'material':
+					dependency = this.loadMaterial( index );
+					break;
+
+				case 'texture':
+					dependency = this.loadTexture( index );
+					break;
+
+				case 'skin':
+					dependency = this.loadSkin( index );
+					break;
+
+				case 'animation':
+					dependency = this.loadAnimation( index );
+					break;
+
+				case 'camera':
+					dependency = this.loadCamera( index );
+					break;
+
+				case 'light':
+					dependency = this.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].loadLight( index );
+					break;
+
+				default:
+					throw new Error( 'Unknown type: ' + type );
+
+			}
+
+			this.cache.add( cacheKey, dependency );
+
+		}
+
+		return dependency;
+
+	};
+
+	/**
+	 * Requests all dependencies of the specified type asynchronously, with caching.
+	 * @param {string} type
+	 * @return {Promise<Array<Object>>}
+	 */
+	GLTFParser.prototype.getDependencies = function ( type ) {
+
+		var dependencies = this.cache.get( type );
+
+		if ( ! dependencies ) {
+
+			var parser = this;
+			var defs = this.json[ type + ( type === 'mesh' ? 'es' : 's' ) ] || [];
+
+			dependencies = Promise.all( defs.map( function ( def, index ) {
+
+				return parser.getDependency( type, index );
+
+			} ) );
+
+			this.cache.add( type, dependencies );
+
+		}
+
+		return dependencies;
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
+	 * @param {number} bufferIndex
+	 * @return {Promise<ArrayBuffer>}
+	 */
+	GLTFParser.prototype.loadBuffer = function ( bufferIndex ) {
+
+		var bufferDef = this.json.buffers[ bufferIndex ];
+		var loader = this.fileLoader;
+
+		if ( bufferDef.type && bufferDef.type !== 'arraybuffer' ) {
+
+			throw new Error( 'THREE.GLTFLoader: ' + bufferDef.type + ' buffer type is not supported.' );
+
+		}
+
+		// If present, GLB container is required to be the first buffer.
+		if ( bufferDef.uri === undefined && bufferIndex === 0 ) {
+
+			return Promise.resolve( this.extensions[ EXTENSIONS.KHR_BINARY_GLTF ].body );
+
+		}
+
+		var options = this.options;
+
+		return new Promise( function ( resolve, reject ) {
+
+			loader.load( resolveURL( bufferDef.uri, options.path ), resolve, undefined, function () {
+
+				reject( new Error( 'THREE.GLTFLoader: Failed to load buffer "' + bufferDef.uri + '".' ) );
+
+			} );
+
+		} );
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
+	 * @param {number} bufferViewIndex
+	 * @return {Promise<ArrayBuffer>}
+	 */
+	GLTFParser.prototype.loadBufferView = function ( bufferViewIndex ) {
+
+		var bufferViewDef = this.json.bufferViews[ bufferViewIndex ];
+
+		return this.getDependency( 'buffer', bufferViewDef.buffer ).then( function ( buffer ) {
+
+			var byteLength = bufferViewDef.byteLength || 0;
+			var byteOffset = bufferViewDef.byteOffset || 0;
+			return buffer.slice( byteOffset, byteOffset + byteLength );
+
+		} );
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors
+	 * @param {number} accessorIndex
+	 * @return {Promise<THREE.BufferAttribute|THREE.InterleavedBufferAttribute>}
+	 */
+	GLTFParser.prototype.loadAccessor = function ( accessorIndex ) {
+
+		var parser = this;
+		var json = this.json;
+
+		var accessorDef = this.json.accessors[ accessorIndex ];
+
+		if ( accessorDef.bufferView === undefined && accessorDef.sparse === undefined ) {
+
+			// Ignore empty accessors, which may be used to declare runtime
+			// information about attributes coming from another source (e.g. Draco
+			// compression extension).
+			return Promise.resolve( null );
+
+		}
+
+		var pendingBufferViews = [];
+
+		if ( accessorDef.bufferView !== undefined ) {
+
+			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.bufferView ) );
+
+		} else {
+
+			pendingBufferViews.push( null );
+
+		}
+
+		if ( accessorDef.sparse !== undefined ) {
+
+			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.indices.bufferView ) );
+			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.values.bufferView ) );
+
+		}
+
+		return Promise.all( pendingBufferViews ).then( function ( bufferViews ) {
+
+			var bufferView = bufferViews[ 0 ];
+
+			var itemSize = WEBGL_TYPE_SIZES[ accessorDef.type ];
+			var TypedArray = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
+
+			// For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.
+			var elementBytes = TypedArray.BYTES_PER_ELEMENT;
+			var itemBytes = elementBytes * itemSize;
+			var byteOffset = accessorDef.byteOffset || 0;
+			var byteStride = accessorDef.bufferView !== undefined ? json.bufferViews[ accessorDef.bufferView ].byteStride : undefined;
+			var normalized = accessorDef.normalized === true;
+			var array, bufferAttribute;
+
+			// The buffer is not interleaved if the stride is the item size in bytes.
+			if ( byteStride && byteStride !== itemBytes ) {
+
+				var ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType;
+				var ib = parser.cache.get( ibCacheKey );
+
+				if ( ! ib ) {
+
+					// Use the full buffer if it's interleaved.
+					array = new TypedArray( bufferView );
+
+					// Integer parameters to IB/IBA are in array elements, not bytes.
+					ib = new THREE.InterleavedBuffer( array, byteStride / elementBytes );
+
+					parser.cache.add( ibCacheKey, ib );
+
+				}
+
+				bufferAttribute = new THREE.InterleavedBufferAttribute( ib, itemSize, byteOffset / elementBytes, normalized );
+
+			} else {
+
+				if ( bufferView === null ) {
+
+					array = new TypedArray( accessorDef.count * itemSize );
+
+				} else {
+
+					array = new TypedArray( bufferView, byteOffset, accessorDef.count * itemSize );
+
+				}
+
+				bufferAttribute = new THREE.BufferAttribute( array, itemSize, normalized );
+
+			}
+
+			// https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#sparse-accessors
+			if ( accessorDef.sparse !== undefined ) {
+
+				var itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
+				var TypedArrayIndices = WEBGL_COMPONENT_TYPES[ accessorDef.sparse.indices.componentType ];
+
+				var byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
+				var byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;
+
+				var sparseIndices = new TypedArrayIndices( bufferViews[ 1 ], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices );
+				var sparseValues = new TypedArray( bufferViews[ 2 ], byteOffsetValues, accessorDef.sparse.count * itemSize );
+
+				if ( bufferView !== null ) {
+
+					// Avoid modifying the original ArrayBuffer, if the bufferView wasn't initialized with zeroes.
+					bufferAttribute.setArray( bufferAttribute.array.slice() );
+
+				}
+
+				for ( var i = 0, il = sparseIndices.length; i < il; i ++ ) {
+
+					var index = sparseIndices[ i ];
+
+					bufferAttribute.setX( index, sparseValues[ i * itemSize ] );
+					if ( itemSize >= 2 ) bufferAttribute.setY( index, sparseValues[ i * itemSize + 1 ] );
+					if ( itemSize >= 3 ) bufferAttribute.setZ( index, sparseValues[ i * itemSize + 2 ] );
+					if ( itemSize >= 4 ) bufferAttribute.setW( index, sparseValues[ i * itemSize + 3 ] );
+					if ( itemSize >= 5 ) throw new Error( 'THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.' );
+
+				}
+
+			}
+
+			return bufferAttribute;
+
+		} );
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures
+	 * @param {number} textureIndex
+	 * @return {Promise<THREE.Texture>}
+	 */
+	GLTFParser.prototype.loadTexture = function ( textureIndex ) {
+
+		var parser = this;
+		var json = this.json;
+		var options = this.options;
+		var textureLoader = this.textureLoader;
+
+		var URL = window.URL || window.webkitURL;
+
+		var textureDef = json.textures[ textureIndex ];
+
+		var textureExtensions = textureDef.extensions || {};
+
+		var source;
+
+		if ( textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] ) {
+
+			source = json.images[ textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].source ];
+
+		} else {
+
+			source = json.images[ textureDef.source ];
+
+		}
+
+		var sourceURI = source.uri;
+		var isObjectURL = false;
+
+		if ( source.bufferView !== undefined ) {
+
+			// Load binary image data from bufferView, if provided.
+
+			sourceURI = parser.getDependency( 'bufferView', source.bufferView ).then( function ( bufferView ) {
+
+				isObjectURL = true;
+				var blob = new Blob( [ bufferView ], { type: source.mimeType } );
+				sourceURI = URL.createObjectURL( blob );
+				return sourceURI;
+
+			} );
+
+		}
+
+		return Promise.resolve( sourceURI ).then( function ( sourceURI ) {
+
+			// Load Texture resource.
+
+			var loader = THREE.Loader.Handlers.get( sourceURI );
+
+			if ( ! loader ) {
+
+				loader = textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ]
+					? parser.extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].ddsLoader
+					: textureLoader;
+
+			}
+
+			return new Promise( function ( resolve, reject ) {
+
+				loader.load( resolveURL( sourceURI, options.path ), resolve, undefined, reject );
+
+			} );
+
+		} ).then( function ( texture ) {
+
+			// Clean up resources and configure Texture.
+
+			if ( isObjectURL === true ) {
+
+				URL.revokeObjectURL( sourceURI );
+
+			}
+
+			texture.flipY = false;
+
+			if ( textureDef.name !== undefined ) texture.name = textureDef.name;
+
+			// Ignore unknown mime types, like DDS files.
+			if ( source.mimeType in MIME_TYPE_FORMATS ) {
+
+				texture.format = MIME_TYPE_FORMATS[ source.mimeType ];
+
+			}
+
+			var samplers = json.samplers || {};
+			var sampler = samplers[ textureDef.sampler ] || {};
+
+			texture.magFilter = WEBGL_FILTERS[ sampler.magFilter ] || THREE.LinearFilter;
+			texture.minFilter = WEBGL_FILTERS[ sampler.minFilter ] || THREE.LinearMipMapLinearFilter;
+			texture.wrapS = WEBGL_WRAPPINGS[ sampler.wrapS ] || THREE.RepeatWrapping;
+			texture.wrapT = WEBGL_WRAPPINGS[ sampler.wrapT ] || THREE.RepeatWrapping;
+
+			return texture;
+
+		} );
+
+	};
+
+	/**
+	 * Asynchronously assigns a texture to the given material parameters.
+	 * @param {Object} materialParams
+	 * @param {string} mapName
+	 * @param {Object} mapDef
+	 * @return {Promise}
+	 */
+	GLTFParser.prototype.assignTexture = function ( materialParams, mapName, mapDef ) {
+
+		var parser = this;
+
+		return this.getDependency( 'texture', mapDef.index ).then( function ( texture ) {
+
+			if ( ! texture.isCompressedTexture ) {
+
+				switch ( mapName ) {
+
+					case 'aoMap':
+					case 'emissiveMap':
+					case 'metalnessMap':
+					case 'normalMap':
+					case 'roughnessMap':
+						texture.format = THREE.RGBFormat;
+						break;
+
+				}
+
+			}
+
+			if ( parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] ) {
+
+				var transform = mapDef.extensions !== undefined ? mapDef.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] : undefined;
+
+				if ( transform ) {
+
+					texture = parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ].extendTexture( texture, transform );
+
+				}
+
+			}
+
+			materialParams[ mapName ] = texture;
+
+		} );
+
+	};
+
+	/**
+	 * Assigns final material to a Mesh, Line, or Points instance. The instance
+	 * already has a material (generated from the glTF material options alone)
+	 * but reuse of the same glTF material may require multiple threejs materials
+	 * to accomodate different primitive types, defines, etc. New materials will
+	 * be created if necessary, and reused from a cache.
+	 * @param  {THREE.Object3D} mesh Mesh, Line, or Points instance.
+	 */
+	GLTFParser.prototype.assignFinalMaterial = function ( mesh ) {
+
+		var geometry = mesh.geometry;
+		var material = mesh.material;
+		var extensions = this.extensions;
+
+		var useVertexTangents = geometry.attributes.tangent !== undefined;
+		var useVertexColors = geometry.attributes.color !== undefined;
+		var useFlatShading = geometry.attributes.normal === undefined;
+		var useSkinning = mesh.isSkinnedMesh === true;
+		var useMorphTargets = Object.keys( geometry.morphAttributes ).length > 0;
+		var useMorphNormals = useMorphTargets && geometry.morphAttributes.normal !== undefined;
+
+		if ( mesh.isPoints ) {
+
+			var cacheKey = 'PointsMaterial:' + material.uuid;
+
+			var pointsMaterial = this.cache.get( cacheKey );
+
+			if ( ! pointsMaterial ) {
+
+				pointsMaterial = new THREE.PointsMaterial();
+				THREE.Material.prototype.copy.call( pointsMaterial, material );
+				pointsMaterial.color.copy( material.color );
+				pointsMaterial.map = material.map;
+				pointsMaterial.lights = false; // PointsMaterial doesn't support lights yet
+
+				this.cache.add( cacheKey, pointsMaterial );
+
+			}
+
+			material = pointsMaterial;
+
+		} else if ( mesh.isLine ) {
+
+			var cacheKey = 'LineBasicMaterial:' + material.uuid;
+
+			var lineMaterial = this.cache.get( cacheKey );
+
+			if ( ! lineMaterial ) {
+
+				lineMaterial = new THREE.LineBasicMaterial();
+				THREE.Material.prototype.copy.call( lineMaterial, material );
+				lineMaterial.color.copy( material.color );
+				lineMaterial.lights = false; // LineBasicMaterial doesn't support lights yet
+
+				this.cache.add( cacheKey, lineMaterial );
+
+			}
+
+			material = lineMaterial;
+
+		}
+
+		// Clone the material if it will be modified
+		if ( useVertexTangents || useVertexColors || useFlatShading || useSkinning || useMorphTargets ) {
+
+			var cacheKey = 'ClonedMaterial:' + material.uuid + ':';
+
+			if ( material.isGLTFSpecularGlossinessMaterial ) cacheKey += 'specular-glossiness:';
+			if ( useSkinning ) cacheKey += 'skinning:';
+			if ( useVertexTangents ) cacheKey += 'vertex-tangents:';
+			if ( useVertexColors ) cacheKey += 'vertex-colors:';
+			if ( useFlatShading ) cacheKey += 'flat-shading:';
+			if ( useMorphTargets ) cacheKey += 'morph-targets:';
+			if ( useMorphNormals ) cacheKey += 'morph-normals:';
+
+			var cachedMaterial = this.cache.get( cacheKey );
+
+			if ( ! cachedMaterial ) {
+
+				cachedMaterial = material.isGLTFSpecularGlossinessMaterial
+					? extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].cloneMaterial( material )
+					: material.clone();
+
+				if ( useSkinning ) cachedMaterial.skinning = true;
+				if ( useVertexTangents ) cachedMaterial.vertexTangents = true;
+				if ( useVertexColors ) cachedMaterial.vertexColors = THREE.VertexColors;
+				if ( useFlatShading ) cachedMaterial.flatShading = true;
+				if ( useMorphTargets ) cachedMaterial.morphTargets = true;
+				if ( useMorphNormals ) cachedMaterial.morphNormals = true;
+
+				this.cache.add( cacheKey, cachedMaterial );
+
+			}
+
+			material = cachedMaterial;
+
+		}
+
+		// workarounds for mesh and geometry
+
+		if ( material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined ) {
+
+			console.log( 'THREE.GLTFLoader: Duplicating UVs to support aoMap.' );
+			geometry.addAttribute( 'uv2', new THREE.BufferAttribute( geometry.attributes.uv.array, 2 ) );
+
+		}
+
+		if ( material.isGLTFSpecularGlossinessMaterial ) {
+
+			// for GLTFSpecularGlossinessMaterial(ShaderMaterial) uniforms runtime update
+			mesh.onBeforeRender = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].refreshUniforms;
+
+		}
+
+		mesh.material = material;
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
+	 * @param {number} materialIndex
+	 * @return {Promise<THREE.Material>}
+	 */
+	GLTFParser.prototype.loadMaterial = function ( materialIndex ) {
+
+		var parser = this;
+		var json = this.json;
+		var extensions = this.extensions;
+		var materialDef = json.materials[ materialIndex ];
+
+		var materialType;
+		var materialParams = {};
+		var materialExtensions = materialDef.extensions || {};
+
+		var pending = [];
+
+		if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] ) {
+
+			var sgExtension = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ];
+			materialType = sgExtension.getMaterialType();
+			pending.push( sgExtension.extendParams( materialParams, materialDef, parser ) );
+
+		} else if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ] ) {
+
+			var kmuExtension = extensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ];
+			materialType = kmuExtension.getMaterialType();
+			pending.push( kmuExtension.extendParams( materialParams, materialDef, parser ) );
+
+		} else {
+
+			// Specification:
+			// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material
+
+			materialType = THREE.MeshStandardMaterial;
+
+			var metallicRoughness = materialDef.pbrMetallicRoughness || {};
+
+			materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
+			materialParams.opacity = 1.0;
+
+			if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
+
+				var array = metallicRoughness.baseColorFactor;
+
+				materialParams.color.fromArray( array );
+				materialParams.opacity = array[ 3 ];
+
+			}
+
+			if ( metallicRoughness.baseColorTexture !== undefined ) {
+
+				pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture ) );
+
+			}
+
+			materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;
+			materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;
+
+			if ( metallicRoughness.metallicRoughnessTexture !== undefined ) {
+
+				pending.push( parser.assignTexture( materialParams, 'metalnessMap', metallicRoughness.metallicRoughnessTexture ) );
+				pending.push( parser.assignTexture( materialParams, 'roughnessMap', metallicRoughness.metallicRoughnessTexture ) );
+
+			}
+
+		}
+
+		if ( materialDef.doubleSided === true ) {
+
+			materialParams.side = THREE.DoubleSide;
+
+		}
+
+		var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;
+
+		if ( alphaMode === ALPHA_MODES.BLEND ) {
+
+			materialParams.transparent = true;
+
+		} else {
+
+			materialParams.transparent = false;
+
+			if ( alphaMode === ALPHA_MODES.MASK ) {
+
+				materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5;
+
+			}
+
+		}
+
+		if ( materialDef.normalTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {
+
+			pending.push( parser.assignTexture( materialParams, 'normalMap', materialDef.normalTexture ) );
+
+			materialParams.normalScale = new THREE.Vector2( 1, 1 );
+
+			if ( materialDef.normalTexture.scale !== undefined ) {
+
+				materialParams.normalScale.set( materialDef.normalTexture.scale, materialDef.normalTexture.scale );
+
+			}
+
+		}
+
+		if ( materialDef.occlusionTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {
+
+			pending.push( parser.assignTexture( materialParams, 'aoMap', materialDef.occlusionTexture ) );
+
+			if ( materialDef.occlusionTexture.strength !== undefined ) {
+
+				materialParams.aoMapIntensity = materialDef.occlusionTexture.strength;
+
+			}
+
+		}
+
+		if ( materialDef.emissiveFactor !== undefined && materialType !== THREE.MeshBasicMaterial ) {
+
+			materialParams.emissive = new THREE.Color().fromArray( materialDef.emissiveFactor );
+
+		}
+
+		if ( materialDef.emissiveTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {
+
+			pending.push( parser.assignTexture( materialParams, 'emissiveMap', materialDef.emissiveTexture ) );
+
+		}
+
+		return Promise.all( pending ).then( function () {
+
+			var material;
+
+			if ( materialType === THREE.ShaderMaterial ) {
+
+				material = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams );
+
+			} else {
+
+				material = new materialType( materialParams );
+
+			}
+
+			if ( materialDef.name !== undefined ) material.name = materialDef.name;
+
+			// baseColorTexture, emissiveTexture, and specularGlossinessTexture use sRGB encoding.
+			if ( material.map ) material.map.encoding = THREE.sRGBEncoding;
+			if ( material.emissiveMap ) material.emissiveMap.encoding = THREE.sRGBEncoding;
+			if ( material.specularMap ) material.specularMap.encoding = THREE.sRGBEncoding;
+
+			assignExtrasToUserData( material, materialDef );
+
+			if ( materialDef.extensions ) addUnknownExtensionsToUserData( extensions, material, materialDef );
+
+			return material;
+
+		} );
+
+	};
+
+	/**
+	 * @param {THREE.BufferGeometry} geometry
+	 * @param {GLTF.Primitive} primitiveDef
+	 * @param {GLTFParser} parser
+	 * @return {Promise<THREE.BufferGeometry>}
+	 */
+	function addPrimitiveAttributes( geometry, primitiveDef, parser ) {
+
+		var attributes = primitiveDef.attributes;
+
+		var pending = [];
+
+		function assignAttributeAccessor( accessorIndex, attributeName ) {
+
+			return parser.getDependency( 'accessor', accessorIndex )
+				.then( function ( accessor ) {
+
+					geometry.addAttribute( attributeName, accessor );
+
+				} );
+
+		}
+
+		for ( var gltfAttributeName in attributes ) {
+
+			var threeAttributeName = ATTRIBUTES[ gltfAttributeName ] || gltfAttributeName.toLowerCase();
+
+			// Skip attributes already provided by e.g. Draco extension.
+			if ( threeAttributeName in geometry.attributes ) continue;
+
+			pending.push( assignAttributeAccessor( attributes[ gltfAttributeName ], threeAttributeName ) );
+
+		}
+
+		if ( primitiveDef.indices !== undefined && ! geometry.index ) {
+
+			var accessor = parser.getDependency( 'accessor', primitiveDef.indices ).then( function ( accessor ) {
+
+				geometry.setIndex( accessor );
+
+			} );
+
+			pending.push( accessor );
+
+		}
+
+		assignExtrasToUserData( geometry, primitiveDef );
+
+		return Promise.all( pending ).then( function () {
+
+			return primitiveDef.targets !== undefined
+				? addMorphTargets( geometry, primitiveDef.targets, parser )
+				: geometry;
+
+		} );
+
+	}
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry
+	 *
+	 * Creates BufferGeometries from primitives.
+	 *
+	 * @param {Array<GLTF.Primitive>} primitives
+	 * @return {Promise<Array<THREE.BufferGeometry>>}
+	 */
+	GLTFParser.prototype.loadGeometries = function ( primitives ) {
+
+		var parser = this;
+		var extensions = this.extensions;
+		var cache = this.primitiveCache;
+
+		function createDracoPrimitive( primitive ) {
+
+			return extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ]
+				.decodePrimitive( primitive, parser )
+				.then( function ( geometry ) {
+
+					return addPrimitiveAttributes( geometry, primitive, parser );
+
+				} );
+
+		}
+
+		var pending = [];
+
+		for ( var i = 0, il = primitives.length; i < il; i ++ ) {
+
+			var primitive = primitives[ i ];
+			var cacheKey = createPrimitiveKey( primitive );
+
+			// See if we've already created this geometry
+			var cached = cache[ cacheKey ];
+
+			if ( cached ) {
+
+				// Use the cached geometry if it exists
+				pending.push( cached.promise );
+
+			} else {
+
+				var geometryPromise;
+
+				if ( primitive.extensions && primitive.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ] ) {
+
+					// Use DRACO geometry if available
+					geometryPromise = createDracoPrimitive( primitive );
+
+				} else {
+
+					// Otherwise create a new geometry
+					geometryPromise = addPrimitiveAttributes( new THREE.BufferGeometry(), primitive, parser );
+
+				}
+
+				// Cache this geometry
+				cache[ cacheKey ] = { primitive: primitive, promise: geometryPromise };
+
+				pending.push( geometryPromise );
+
+			}
+
+		}
+
+		return Promise.all( pending );
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes
+	 * @param {number} meshIndex
+	 * @return {Promise<THREE.Group|THREE.Mesh|THREE.SkinnedMesh>}
+	 */
+	GLTFParser.prototype.loadMesh = function ( meshIndex ) {
+
+		var parser = this;
+		var json = this.json;
+		var extensions = this.extensions;
+
+		var meshDef = json.meshes[ meshIndex ];
+		var primitives = meshDef.primitives;
+
+		var pending = [];
+
+		for ( var i = 0, il = primitives.length; i < il; i ++ ) {
+
+			var material = primitives[ i ].material === undefined
+				? createDefaultMaterial()
+				: this.getDependency( 'material', primitives[ i ].material );
+
+			pending.push( material );
+
+		}
+
+		return Promise.all( pending ).then( function ( originalMaterials ) {
+
+			return parser.loadGeometries( primitives ).then( function ( geometries ) {
+
+				var meshes = [];
+
+				for ( var i = 0, il = geometries.length; i < il; i ++ ) {
+
+					var geometry = geometries[ i ];
+					var primitive = primitives[ i ];
+
+					// 1. create Mesh
+
+					var mesh;
+
+					var material = originalMaterials[ i ];
+
+					if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLES ||
+						primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ||
+						primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ||
+						primitive.mode === undefined ) {
+
+						// .isSkinnedMesh isn't in glTF spec. See .markDefs()
+						mesh = meshDef.isSkinnedMesh === true
+							? new THREE.SkinnedMesh( geometry, material )
+							: new THREE.Mesh( geometry, material );
+
+						if ( mesh.isSkinnedMesh === true ) mesh.normalizeSkinWeights(); // #15319
+
+						if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ) {
+
+							mesh.drawMode = THREE.TriangleStripDrawMode;
+
+						} else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) {
+
+							mesh.drawMode = THREE.TriangleFanDrawMode;
+
+						}
+
+					} else if ( primitive.mode === WEBGL_CONSTANTS.LINES ) {
+
+						mesh = new THREE.LineSegments( geometry, material );
+
+					} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_STRIP ) {
+
+						mesh = new THREE.Line( geometry, material );
+
+					} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_LOOP ) {
+
+						mesh = new THREE.LineLoop( geometry, material );
+
+					} else if ( primitive.mode === WEBGL_CONSTANTS.POINTS ) {
+
+						mesh = new THREE.Points( geometry, material );
+
+					} else {
+
+						throw new Error( 'THREE.GLTFLoader: Primitive mode unsupported: ' + primitive.mode );
+
+					}
+
+					if ( Object.keys( mesh.geometry.morphAttributes ).length > 0 ) {
+
+						updateMorphTargets( mesh, meshDef );
+
+					}
+
+					mesh.name = meshDef.name || ( 'mesh_' + meshIndex );
+
+					if ( geometries.length > 1 ) mesh.name += '_' + i;
+
+					assignExtrasToUserData( mesh, meshDef );
+
+					parser.assignFinalMaterial( mesh );
+
+					meshes.push( mesh );
+
+				}
+
+				if ( meshes.length === 1 ) {
+
+					return meshes[ 0 ];
+
+				}
+
+				var group = new THREE.Group();
+
+				for ( var i = 0, il = meshes.length; i < il; i ++ ) {
+
+					group.add( meshes[ i ] );
+
+				}
+
+				return group;
+
+			} );
+
+		} );
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras
+	 * @param {number} cameraIndex
+	 * @return {Promise<THREE.Camera>}
+	 */
+	GLTFParser.prototype.loadCamera = function ( cameraIndex ) {
+
+		var camera;
+		var cameraDef = this.json.cameras[ cameraIndex ];
+		var params = cameraDef[ cameraDef.type ];
+
+		if ( ! params ) {
+
+			console.warn( 'THREE.GLTFLoader: Missing camera parameters.' );
+			return;
+
+		}
+
+		if ( cameraDef.type === 'perspective' ) {
+
+			camera = new THREE.PerspectiveCamera( THREE.Math.radToDeg( params.yfov ), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6 );
+
+		} else if ( cameraDef.type === 'orthographic' ) {
+
+			camera = new THREE.OrthographicCamera( params.xmag / - 2, params.xmag / 2, params.ymag / 2, params.ymag / - 2, params.znear, params.zfar );
+
+		}
+
+		if ( cameraDef.name !== undefined ) camera.name = cameraDef.name;
+
+		assignExtrasToUserData( camera, cameraDef );
+
+		return Promise.resolve( camera );
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins
+	 * @param {number} skinIndex
+	 * @return {Promise<Object>}
+	 */
+	GLTFParser.prototype.loadSkin = function ( skinIndex ) {
+
+		var skinDef = this.json.skins[ skinIndex ];
+
+		var skinEntry = { joints: skinDef.joints };
+
+		if ( skinDef.inverseBindMatrices === undefined ) {
+
+			return Promise.resolve( skinEntry );
+
+		}
+
+		return this.getDependency( 'accessor', skinDef.inverseBindMatrices ).then( function ( accessor ) {
+
+			skinEntry.inverseBindMatrices = accessor;
+
+			return skinEntry;
+
+		} );
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations
+	 * @param {number} animationIndex
+	 * @return {Promise<THREE.AnimationClip>}
+	 */
+	GLTFParser.prototype.loadAnimation = function ( animationIndex ) {
+
+		var json = this.json;
+
+		var animationDef = json.animations[ animationIndex ];
+
+		var pendingNodes = [];
+		var pendingInputAccessors = [];
+		var pendingOutputAccessors = [];
+		var pendingSamplers = [];
+		var pendingTargets = [];
+
+		for ( var i = 0, il = animationDef.channels.length; i < il; i ++ ) {
+
+			var channel = animationDef.channels[ i ];
+			var sampler = animationDef.samplers[ channel.sampler ];
+			var target = channel.target;
+			var name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.
+			var input = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.input ] : sampler.input;
+			var output = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.output ] : sampler.output;
+
+			pendingNodes.push( this.getDependency( 'node', name ) );
+			pendingInputAccessors.push( this.getDependency( 'accessor', input ) );
+			pendingOutputAccessors.push( this.getDependency( 'accessor', output ) );
+			pendingSamplers.push( sampler );
+			pendingTargets.push( target );
+
+		}
+
+		return Promise.all( [
+
+			Promise.all( pendingNodes ),
+			Promise.all( pendingInputAccessors ),
+			Promise.all( pendingOutputAccessors ),
+			Promise.all( pendingSamplers ),
+			Promise.all( pendingTargets )
+
+		] ).then( function ( dependencies ) {
+
+			var nodes = dependencies[ 0 ];
+			var inputAccessors = dependencies[ 1 ];
+			var outputAccessors = dependencies[ 2 ];
+			var samplers = dependencies[ 3 ];
+			var targets = dependencies[ 4 ];
+
+			var tracks = [];
+
+			for ( var i = 0, il = nodes.length; i < il; i ++ ) {
+
+				var node = nodes[ i ];
+				var inputAccessor = inputAccessors[ i ];
+				var outputAccessor = outputAccessors[ i ];
+				var sampler = samplers[ i ];
+				var target = targets[ i ];
+
+				if ( node === undefined ) continue;
+
+				node.updateMatrix();
+				node.matrixAutoUpdate = true;
+
+				var TypedKeyframeTrack;
+
+				switch ( PATH_PROPERTIES[ target.path ] ) {
+
+					case PATH_PROPERTIES.weights:
+
+						TypedKeyframeTrack = THREE.NumberKeyframeTrack;
+						break;
+
+					case PATH_PROPERTIES.rotation:
+
+						TypedKeyframeTrack = THREE.QuaternionKeyframeTrack;
+						break;
+
+					case PATH_PROPERTIES.position:
+					case PATH_PROPERTIES.scale:
+					default:
+
+						TypedKeyframeTrack = THREE.VectorKeyframeTrack;
+						break;
+
+				}
+
+				var targetName = node.name ? node.name : node.uuid;
+
+				var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : THREE.InterpolateLinear;
+
+				var targetNames = [];
+
+				if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) {
+
+					// Node may be a THREE.Group (glTF mesh with several primitives) or a THREE.Mesh.
+					node.traverse( function ( object ) {
+
+						if ( object.isMesh === true && object.morphTargetInfluences ) {
+
+							targetNames.push( object.name ? object.name : object.uuid );
+
+						}
+
+					} );
+
+				} else {
+
+					targetNames.push( targetName );
+
+				}
+
+				for ( var j = 0, jl = targetNames.length; j < jl; j ++ ) {
+
+					var track = new TypedKeyframeTrack(
+						targetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ],
+						inputAccessor.array,
+						outputAccessor.array,
+						interpolation
+					);
+
+					// Override interpolation with custom factory method.
+					if ( sampler.interpolation === 'CUBICSPLINE' ) {
+
+						track.createInterpolant = function InterpolantFactoryMethodGLTFCubicSpline( result ) {
+
+							// A CUBICSPLINE keyframe in glTF has three output values for each input value,
+							// representing inTangent, splineVertex, and outTangent. As a result, track.getValueSize()
+							// must be divided by three to get the interpolant's sampleSize argument.
+
+							return new GLTFCubicSplineInterpolant( this.times, this.values, this.getValueSize() / 3, result );
+
+						};
+
+						// Mark as CUBICSPLINE. `track.getInterpolation()` doesn't support custom interpolants.
+						track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true;
+
+					}
+
+					tracks.push( track );
+
+				}
+
+			}
+
+			var name = animationDef.name !== undefined ? animationDef.name : 'animation_' + animationIndex;
+
+			return new THREE.AnimationClip( name, undefined, tracks );
+
+		} );
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
+	 * @param {number} nodeIndex
+	 * @return {Promise<THREE.Object3D>}
+	 */
+	GLTFParser.prototype.loadNode = function ( nodeIndex ) {
+
+		var json = this.json;
+		var extensions = this.extensions;
+		var parser = this;
+
+		var meshReferences = json.meshReferences;
+		var meshUses = json.meshUses;
+
+		var nodeDef = json.nodes[ nodeIndex ];
+
+		return ( function () {
+
+			// .isBone isn't in glTF spec. See .markDefs
+			if ( nodeDef.isBone === true ) {
+
+				return Promise.resolve( new THREE.Bone() );
+
+			} else if ( nodeDef.mesh !== undefined ) {
+
+				return parser.getDependency( 'mesh', nodeDef.mesh ).then( function ( mesh ) {
+
+					var node;
+
+					if ( meshReferences[ nodeDef.mesh ] > 1 ) {
+
+						var instanceNum = meshUses[ nodeDef.mesh ] ++;
+
+						node = mesh.clone();
+						node.name += '_instance_' + instanceNum;
+
+						// onBeforeRender copy for Specular-Glossiness
+						node.onBeforeRender = mesh.onBeforeRender;
+
+						for ( var i = 0, il = node.children.length; i < il; i ++ ) {
+
+							node.children[ i ].name += '_instance_' + instanceNum;
+							node.children[ i ].onBeforeRender = mesh.children[ i ].onBeforeRender;
+
+						}
+
+					} else {
+
+						node = mesh;
+
+					}
+
+					// if weights are provided on the node, override weights on the mesh.
+					if ( nodeDef.weights !== undefined ) {
+
+						node.traverse( function ( o ) {
+
+							if ( ! o.isMesh ) return;
+
+							for ( var i = 0, il = nodeDef.weights.length; i < il; i ++ ) {
+
+								o.morphTargetInfluences[ i ] = nodeDef.weights[ i ];
+
+							}
+
+						} );
+
+					}
+
+					return node;
+
+				} );
+
+			} else if ( nodeDef.camera !== undefined ) {
+
+				return parser.getDependency( 'camera', nodeDef.camera );
+
+			} else if ( nodeDef.extensions
+				&& nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ]
+				&& nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light !== undefined ) {
+
+				return parser.getDependency( 'light', nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light );
+
+			} else {
+
+				return Promise.resolve( new THREE.Object3D() );
+
+			}
+
+		}() ).then( function ( node ) {
+
+			if ( nodeDef.name !== undefined ) {
+
+				node.userData.name = nodeDef.name;
+				node.name = THREE.PropertyBinding.sanitizeNodeName( nodeDef.name );
+
+			}
+
+			assignExtrasToUserData( node, nodeDef );
+
+			if ( nodeDef.extensions ) addUnknownExtensionsToUserData( extensions, node, nodeDef );
+
+			if ( nodeDef.matrix !== undefined ) {
+
+				var matrix = new THREE.Matrix4();
+				matrix.fromArray( nodeDef.matrix );
+				node.applyMatrix( matrix );
+
+			} else {
+
+				if ( nodeDef.translation !== undefined ) {
+
+					node.position.fromArray( nodeDef.translation );
+
+				}
+
+				if ( nodeDef.rotation !== undefined ) {
+
+					node.quaternion.fromArray( nodeDef.rotation );
+
+				}
+
+				if ( nodeDef.scale !== undefined ) {
+
+					node.scale.fromArray( nodeDef.scale );
+
+				}
+
+			}
+
+			return node;
+
+		} );
+
+	};
+
+	/**
+	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
+	 * @param {number} sceneIndex
+	 * @return {Promise<THREE.Scene>}
+	 */
+	GLTFParser.prototype.loadScene = function () {
+
+		// scene node hierachy builder
+
+		function buildNodeHierachy( nodeId, parentObject, json, parser ) {
+
+			var nodeDef = json.nodes[ nodeId ];
+
+			return parser.getDependency( 'node', nodeId ).then( function ( node ) {
+
+				if ( nodeDef.skin === undefined ) return node;
+
+				// build skeleton here as well
+
+				var skinEntry;
+
+				return parser.getDependency( 'skin', nodeDef.skin ).then( function ( skin ) {
+
+					skinEntry = skin;
+
+					var pendingJoints = [];
+
+					for ( var i = 0, il = skinEntry.joints.length; i < il; i ++ ) {
+
+						pendingJoints.push( parser.getDependency( 'node', skinEntry.joints[ i ] ) );
+
+					}
+
+					return Promise.all( pendingJoints );
+
+				} ).then( function ( jointNodes ) {
+
+					var meshes = node.isGroup === true ? node.children : [ node ];
+
+					for ( var i = 0, il = meshes.length; i < il; i ++ ) {
+
+						var mesh = meshes[ i ];
+
+						var bones = [];
+						var boneInverses = [];
+
+						for ( var j = 0, jl = jointNodes.length; j < jl; j ++ ) {
+
+							var jointNode = jointNodes[ j ];
+
+							if ( jointNode ) {
+
+								bones.push( jointNode );
+
+								var mat = new THREE.Matrix4();
+
+								if ( skinEntry.inverseBindMatrices !== undefined ) {
+
+									mat.fromArray( skinEntry.inverseBindMatrices.array, j * 16 );
+
+								}
+
+								boneInverses.push( mat );
+
+							} else {
+
+								console.warn( 'THREE.GLTFLoader: Joint "%s" could not be found.', skinEntry.joints[ j ] );
+
+							}
+
+						}
+
+						mesh.bind( new THREE.Skeleton( bones, boneInverses ), mesh.matrixWorld );
+
+					}
+
+					return node;
+
+				} );
+
+			} ).then( function ( node ) {
+
+				// build node hierachy
+
+				parentObject.add( node );
+
+				var pending = [];
+
+				if ( nodeDef.children ) {
+
+					var children = nodeDef.children;
+
+					for ( var i = 0, il = children.length; i < il; i ++ ) {
+
+						var child = children[ i ];
+						pending.push( buildNodeHierachy( child, node, json, parser ) );
+
+					}
+
+				}
+
+				return Promise.all( pending );
+
+			} );
+
+		}
+
+		return function loadScene( sceneIndex ) {
+
+			var json = this.json;
+			var extensions = this.extensions;
+			var sceneDef = this.json.scenes[ sceneIndex ];
+			var parser = this;
+
+			var scene = new THREE.Scene();
+			if ( sceneDef.name !== undefined ) scene.name = sceneDef.name;
+
+			assignExtrasToUserData( scene, sceneDef );
+
+			if ( sceneDef.extensions ) addUnknownExtensionsToUserData( extensions, scene, sceneDef );
+
+			var nodeIds = sceneDef.nodes || [];
+
+			var pending = [];
+
+			for ( var i = 0, il = nodeIds.length; i < il; i ++ ) {
+
+				pending.push( buildNodeHierachy( nodeIds[ i ], scene, json, parser ) );
+
+			}
+
+			return Promise.all( pending ).then( function () {
+
+				return scene;
+
+			} );
+
+		};
+
+	}();
+
+	return GLTFLoader;
+
+} )();
diff --git a/Elements.Wasm/wwwroot/js/three.js b/Elements.Wasm/wwwroot/js/three.js
new file mode 100644
index 000000000..d54e44fb7
--- /dev/null
+++ b/Elements.Wasm/wwwroot/js/three.js
@@ -0,0 +1,49160 @@
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+	typeof define === 'function' && define.amd ? define(['exports'], factory) :
+	(global = global || self, factory(global.THREE = {}));
+}(this, function (exports) { 'use strict';
+
+	// Polyfills
+
+	if ( Number.EPSILON === undefined ) {
+
+		Number.EPSILON = Math.pow( 2, - 52 );
+
+	}
+
+	if ( Number.isInteger === undefined ) {
+
+		// Missing in IE
+		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger
+
+		Number.isInteger = function ( value ) {
+
+			return typeof value === 'number' && isFinite( value ) && Math.floor( value ) === value;
+
+		};
+
+	}
+
+	//
+
+	if ( Math.sign === undefined ) {
+
+		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign
+
+		Math.sign = function ( x ) {
+
+			return ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;
+
+		};
+
+	}
+
+	if ( 'name' in Function.prototype === false ) {
+
+		// Missing in IE
+		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name
+
+		Object.defineProperty( Function.prototype, 'name', {
+
+			get: function () {
+
+				return this.toString().match( /^\s*function\s*([^\(\s]*)/ )[ 1 ];
+
+			}
+
+		} );
+
+	}
+
+	if ( Object.assign === undefined ) {
+
+		// Missing in IE
+		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
+
+		( function () {
+
+			Object.assign = function ( target ) {
+
+				if ( target === undefined || target === null ) {
+
+					throw new TypeError( 'Cannot convert undefined or null to object' );
+
+				}
+
+				var output = Object( target );
+
+				for ( var index = 1; index < arguments.length; index ++ ) {
+
+					var source = arguments[ index ];
+
+					if ( source !== undefined && source !== null ) {
+
+						for ( var nextKey in source ) {
+
+							if ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {
+
+								output[ nextKey ] = source[ nextKey ];
+
+							}
+
+						}
+
+					}
+
+				}
+
+				return output;
+
+			};
+
+		} )();
+
+	}
+
+	/**
+	 * https://github.com/mrdoob/eventdispatcher.js/
+	 */
+
+	function EventDispatcher() {}
+
+	Object.assign( EventDispatcher.prototype, {
+
+		addEventListener: function ( type, listener ) {
+
+			if ( this._listeners === undefined ) this._listeners = {};
+
+			var listeners = this._listeners;
+
+			if ( listeners[ type ] === undefined ) {
+
+				listeners[ type ] = [];
+
+			}
+
+			if ( listeners[ type ].indexOf( listener ) === - 1 ) {
+
+				listeners[ type ].push( listener );
+
+			}
+
+		},
+
+		hasEventListener: function ( type, listener ) {
+
+			if ( this._listeners === undefined ) return false;
+
+			var listeners = this._listeners;
+
+			return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;
+
+		},
+
+		removeEventListener: function ( type, listener ) {
+
+			if ( this._listeners === undefined ) return;
+
+			var listeners = this._listeners;
+			var listenerArray = listeners[ type ];
+
+			if ( listenerArray !== undefined ) {
+
+				var index = listenerArray.indexOf( listener );
+
+				if ( index !== - 1 ) {
+
+					listenerArray.splice( index, 1 );
+
+				}
+
+			}
+
+		},
+
+		dispatchEvent: function ( event ) {
+
+			if ( this._listeners === undefined ) return;
+
+			var listeners = this._listeners;
+			var listenerArray = listeners[ event.type ];
+
+			if ( listenerArray !== undefined ) {
+
+				event.target = this;
+
+				var array = listenerArray.slice( 0 );
+
+				for ( var i = 0, l = array.length; i < l; i ++ ) {
+
+					array[ i ].call( this, event );
+
+				}
+
+			}
+
+		}
+
+	} );
+
+	var REVISION = '105';
+	var MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };
+	var CullFaceNone = 0;
+	var CullFaceBack = 1;
+	var CullFaceFront = 2;
+	var CullFaceFrontBack = 3;
+	var FrontFaceDirectionCW = 0;
+	var FrontFaceDirectionCCW = 1;
+	var BasicShadowMap = 0;
+	var PCFShadowMap = 1;
+	var PCFSoftShadowMap = 2;
+	var FrontSide = 0;
+	var BackSide = 1;
+	var DoubleSide = 2;
+	var FlatShading = 1;
+	var SmoothShading = 2;
+	var NoColors = 0;
+	var FaceColors = 1;
+	var VertexColors = 2;
+	var NoBlending = 0;
+	var NormalBlending = 1;
+	var AdditiveBlending = 2;
+	var SubtractiveBlending = 3;
+	var MultiplyBlending = 4;
+	var CustomBlending = 5;
+	var AddEquation = 100;
+	var SubtractEquation = 101;
+	var ReverseSubtractEquation = 102;
+	var MinEquation = 103;
+	var MaxEquation = 104;
+	var ZeroFactor = 200;
+	var OneFactor = 201;
+	var SrcColorFactor = 202;
+	var OneMinusSrcColorFactor = 203;
+	var SrcAlphaFactor = 204;
+	var OneMinusSrcAlphaFactor = 205;
+	var DstAlphaFactor = 206;
+	var OneMinusDstAlphaFactor = 207;
+	var DstColorFactor = 208;
+	var OneMinusDstColorFactor = 209;
+	var SrcAlphaSaturateFactor = 210;
+	var NeverDepth = 0;
+	var AlwaysDepth = 1;
+	var LessDepth = 2;
+	var LessEqualDepth = 3;
+	var EqualDepth = 4;
+	var GreaterEqualDepth = 5;
+	var GreaterDepth = 6;
+	var NotEqualDepth = 7;
+	var MultiplyOperation = 0;
+	var MixOperation = 1;
+	var AddOperation = 2;
+	var NoToneMapping = 0;
+	var LinearToneMapping = 1;
+	var ReinhardToneMapping = 2;
+	var Uncharted2ToneMapping = 3;
+	var CineonToneMapping = 4;
+	var ACESFilmicToneMapping = 5;
+
+	var UVMapping = 300;
+	var CubeReflectionMapping = 301;
+	var CubeRefractionMapping = 302;
+	var EquirectangularReflectionMapping = 303;
+	var EquirectangularRefractionMapping = 304;
+	var SphericalReflectionMapping = 305;
+	var CubeUVReflectionMapping = 306;
+	var CubeUVRefractionMapping = 307;
+	var RepeatWrapping = 1000;
+	var ClampToEdgeWrapping = 1001;
+	var MirroredRepeatWrapping = 1002;
+	var NearestFilter = 1003;
+	var NearestMipMapNearestFilter = 1004;
+	var NearestMipMapLinearFilter = 1005;
+	var LinearFilter = 1006;
+	var LinearMipMapNearestFilter = 1007;
+	var LinearMipMapLinearFilter = 1008;
+	var UnsignedByteType = 1009;
+	var ByteType = 1010;
+	var ShortType = 1011;
+	var UnsignedShortType = 1012;
+	var IntType = 1013;
+	var UnsignedIntType = 1014;
+	var FloatType = 1015;
+	var HalfFloatType = 1016;
+	var UnsignedShort4444Type = 1017;
+	var UnsignedShort5551Type = 1018;
+	var UnsignedShort565Type = 1019;
+	var UnsignedInt248Type = 1020;
+	var AlphaFormat = 1021;
+	var RGBFormat = 1022;
+	var RGBAFormat = 1023;
+	var LuminanceFormat = 1024;
+	var LuminanceAlphaFormat = 1025;
+	var RGBEFormat = RGBAFormat;
+	var DepthFormat = 1026;
+	var DepthStencilFormat = 1027;
+	var RedFormat = 1028;
+	var RGB_S3TC_DXT1_Format = 33776;
+	var RGBA_S3TC_DXT1_Format = 33777;
+	var RGBA_S3TC_DXT3_Format = 33778;
+	var RGBA_S3TC_DXT5_Format = 33779;
+	var RGB_PVRTC_4BPPV1_Format = 35840;
+	var RGB_PVRTC_2BPPV1_Format = 35841;
+	var RGBA_PVRTC_4BPPV1_Format = 35842;
+	var RGBA_PVRTC_2BPPV1_Format = 35843;
+	var RGB_ETC1_Format = 36196;
+	var RGBA_ASTC_4x4_Format = 37808;
+	var RGBA_ASTC_5x4_Format = 37809;
+	var RGBA_ASTC_5x5_Format = 37810;
+	var RGBA_ASTC_6x5_Format = 37811;
+	var RGBA_ASTC_6x6_Format = 37812;
+	var RGBA_ASTC_8x5_Format = 37813;
+	var RGBA_ASTC_8x6_Format = 37814;
+	var RGBA_ASTC_8x8_Format = 37815;
+	var RGBA_ASTC_10x5_Format = 37816;
+	var RGBA_ASTC_10x6_Format = 37817;
+	var RGBA_ASTC_10x8_Format = 37818;
+	var RGBA_ASTC_10x10_Format = 37819;
+	var RGBA_ASTC_12x10_Format = 37820;
+	var RGBA_ASTC_12x12_Format = 37821;
+	var LoopOnce = 2200;
+	var LoopRepeat = 2201;
+	var LoopPingPong = 2202;
+	var InterpolateDiscrete = 2300;
+	var InterpolateLinear = 2301;
+	var InterpolateSmooth = 2302;
+	var ZeroCurvatureEnding = 2400;
+	var ZeroSlopeEnding = 2401;
+	var WrapAroundEnding = 2402;
+	var TrianglesDrawMode = 0;
+	var TriangleStripDrawMode = 1;
+	var TriangleFanDrawMode = 2;
+	var LinearEncoding = 3000;
+	var sRGBEncoding = 3001;
+	var GammaEncoding = 3007;
+	var RGBEEncoding = 3002;
+	var LogLuvEncoding = 3003;
+	var RGBM7Encoding = 3004;
+	var RGBM16Encoding = 3005;
+	var RGBDEncoding = 3006;
+	var BasicDepthPacking = 3200;
+	var RGBADepthPacking = 3201;
+	var TangentSpaceNormalMap = 0;
+	var ObjectSpaceNormalMap = 1;
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	var _Math = {
+
+		DEG2RAD: Math.PI / 180,
+		RAD2DEG: 180 / Math.PI,
+
+		generateUUID: ( function () {
+
+			// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
+
+			var lut = [];
+
+			for ( var i = 0; i < 256; i ++ ) {
+
+				lut[ i ] = ( i < 16 ? '0' : '' ) + ( i ).toString( 16 );
+
+			}
+
+			return function generateUUID() {
+
+				var d0 = Math.random() * 0xffffffff | 0;
+				var d1 = Math.random() * 0xffffffff | 0;
+				var d2 = Math.random() * 0xffffffff | 0;
+				var d3 = Math.random() * 0xffffffff | 0;
+				var uuid = lut[ d0 & 0xff ] + lut[ d0 >> 8 & 0xff ] + lut[ d0 >> 16 & 0xff ] + lut[ d0 >> 24 & 0xff ] + '-' +
+					lut[ d1 & 0xff ] + lut[ d1 >> 8 & 0xff ] + '-' + lut[ d1 >> 16 & 0x0f | 0x40 ] + lut[ d1 >> 24 & 0xff ] + '-' +
+					lut[ d2 & 0x3f | 0x80 ] + lut[ d2 >> 8 & 0xff ] + '-' + lut[ d2 >> 16 & 0xff ] + lut[ d2 >> 24 & 0xff ] +
+					lut[ d3 & 0xff ] + lut[ d3 >> 8 & 0xff ] + lut[ d3 >> 16 & 0xff ] + lut[ d3 >> 24 & 0xff ];
+
+				// .toUpperCase() here flattens concatenated strings to save heap memory space.
+				return uuid.toUpperCase();
+
+			};
+
+		} )(),
+
+		clamp: function ( value, min, max ) {
+
+			return Math.max( min, Math.min( max, value ) );
+
+		},
+
+		// compute euclidian modulo of m % n
+		// https://en.wikipedia.org/wiki/Modulo_operation
+
+		euclideanModulo: function ( n, m ) {
+
+			return ( ( n % m ) + m ) % m;
+
+		},
+
+		// Linear mapping from range <a1, a2> to range <b1, b2>
+
+		mapLinear: function ( x, a1, a2, b1, b2 ) {
+
+			return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );
+
+		},
+
+		// https://en.wikipedia.org/wiki/Linear_interpolation
+
+		lerp: function ( x, y, t ) {
+
+			return ( 1 - t ) * x + t * y;
+
+		},
+
+		// http://en.wikipedia.org/wiki/Smoothstep
+
+		smoothstep: function ( x, min, max ) {
+
+			if ( x <= min ) return 0;
+			if ( x >= max ) return 1;
+
+			x = ( x - min ) / ( max - min );
+
+			return x * x * ( 3 - 2 * x );
+
+		},
+
+		smootherstep: function ( x, min, max ) {
+
+			if ( x <= min ) return 0;
+			if ( x >= max ) return 1;
+
+			x = ( x - min ) / ( max - min );
+
+			return x * x * x * ( x * ( x * 6 - 15 ) + 10 );
+
+		},
+
+		// Random integer from <low, high> interval
+
+		randInt: function ( low, high ) {
+
+			return low + Math.floor( Math.random() * ( high - low + 1 ) );
+
+		},
+
+		// Random float from <low, high> interval
+
+		randFloat: function ( low, high ) {
+
+			return low + Math.random() * ( high - low );
+
+		},
+
+		// Random float from <-range/2, range/2> interval
+
+		randFloatSpread: function ( range ) {
+
+			return range * ( 0.5 - Math.random() );
+
+		},
+
+		degToRad: function ( degrees ) {
+
+			return degrees * _Math.DEG2RAD;
+
+		},
+
+		radToDeg: function ( radians ) {
+
+			return radians * _Math.RAD2DEG;
+
+		},
+
+		isPowerOfTwo: function ( value ) {
+
+			return ( value & ( value - 1 ) ) === 0 && value !== 0;
+
+		},
+
+		ceilPowerOfTwo: function ( value ) {
+
+			return Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) );
+
+		},
+
+		floorPowerOfTwo: function ( value ) {
+
+			return Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) );
+
+		}
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author philogb / http://blog.thejit.org/
+	 * @author egraether / http://egraether.com/
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 */
+
+	function Vector2( x, y ) {
+
+		this.x = x || 0;
+		this.y = y || 0;
+
+	}
+
+	Object.defineProperties( Vector2.prototype, {
+
+		"width": {
+
+			get: function () {
+
+				return this.x;
+
+			},
+
+			set: function ( value ) {
+
+				this.x = value;
+
+			}
+
+		},
+
+		"height": {
+
+			get: function () {
+
+				return this.y;
+
+			},
+
+			set: function ( value ) {
+
+				this.y = value;
+
+			}
+
+		}
+
+	} );
+
+	Object.assign( Vector2.prototype, {
+
+		isVector2: true,
+
+		set: function ( x, y ) {
+
+			this.x = x;
+			this.y = y;
+
+			return this;
+
+		},
+
+		setScalar: function ( scalar ) {
+
+			this.x = scalar;
+			this.y = scalar;
+
+			return this;
+
+		},
+
+		setX: function ( x ) {
+
+			this.x = x;
+
+			return this;
+
+		},
+
+		setY: function ( y ) {
+
+			this.y = y;
+
+			return this;
+
+		},
+
+		setComponent: function ( index, value ) {
+
+			switch ( index ) {
+
+				case 0: this.x = value; break;
+				case 1: this.y = value; break;
+				default: throw new Error( 'index is out of range: ' + index );
+
+			}
+
+			return this;
+
+		},
+
+		getComponent: function ( index ) {
+
+			switch ( index ) {
+
+				case 0: return this.x;
+				case 1: return this.y;
+				default: throw new Error( 'index is out of range: ' + index );
+
+			}
+
+		},
+
+		clone: function () {
+
+			return new this.constructor( this.x, this.y );
+
+		},
+
+		copy: function ( v ) {
+
+			this.x = v.x;
+			this.y = v.y;
+
+			return this;
+
+		},
+
+		add: function ( v, w ) {
+
+			if ( w !== undefined ) {
+
+				console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
+				return this.addVectors( v, w );
+
+			}
+
+			this.x += v.x;
+			this.y += v.y;
+
+			return this;
+
+		},
+
+		addScalar: function ( s ) {
+
+			this.x += s;
+			this.y += s;
+
+			return this;
+
+		},
+
+		addVectors: function ( a, b ) {
+
+			this.x = a.x + b.x;
+			this.y = a.y + b.y;
+
+			return this;
+
+		},
+
+		addScaledVector: function ( v, s ) {
+
+			this.x += v.x * s;
+			this.y += v.y * s;
+
+			return this;
+
+		},
+
+		sub: function ( v, w ) {
+
+			if ( w !== undefined ) {
+
+				console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
+				return this.subVectors( v, w );
+
+			}
+
+			this.x -= v.x;
+			this.y -= v.y;
+
+			return this;
+
+		},
+
+		subScalar: function ( s ) {
+
+			this.x -= s;
+			this.y -= s;
+
+			return this;
+
+		},
+
+		subVectors: function ( a, b ) {
+
+			this.x = a.x - b.x;
+			this.y = a.y - b.y;
+
+			return this;
+
+		},
+
+		multiply: function ( v ) {
+
+			this.x *= v.x;
+			this.y *= v.y;
+
+			return this;
+
+		},
+
+		multiplyScalar: function ( scalar ) {
+
+			this.x *= scalar;
+			this.y *= scalar;
+
+			return this;
+
+		},
+
+		divide: function ( v ) {
+
+			this.x /= v.x;
+			this.y /= v.y;
+
+			return this;
+
+		},
+
+		divideScalar: function ( scalar ) {
+
+			return this.multiplyScalar( 1 / scalar );
+
+		},
+
+		applyMatrix3: function ( m ) {
+
+			var x = this.x, y = this.y;
+			var e = m.elements;
+
+			this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ];
+			this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ];
+
+			return this;
+
+		},
+
+		min: function ( v ) {
+
+			this.x = Math.min( this.x, v.x );
+			this.y = Math.min( this.y, v.y );
+
+			return this;
+
+		},
+
+		max: function ( v ) {
+
+			this.x = Math.max( this.x, v.x );
+			this.y = Math.max( this.y, v.y );
+
+			return this;
+
+		},
+
+		clamp: function ( min, max ) {
+
+			// assumes min < max, componentwise
+
+			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
+			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
+
+			return this;
+
+		},
+
+		clampScalar: function ( minVal, maxVal ) {
+
+			this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
+			this.y = Math.max( minVal, Math.min( maxVal, this.y ) );
+
+			return this;
+
+		},
+
+		clampLength: function ( min, max ) {
+
+			var length = this.length();
+
+			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
+
+		},
+
+		floor: function () {
+
+			this.x = Math.floor( this.x );
+			this.y = Math.floor( this.y );
+
+			return this;
+
+		},
+
+		ceil: function () {
+
+			this.x = Math.ceil( this.x );
+			this.y = Math.ceil( this.y );
+
+			return this;
+
+		},
+
+		round: function () {
+
+			this.x = Math.round( this.x );
+			this.y = Math.round( this.y );
+
+			return this;
+
+		},
+
+		roundToZero: function () {
+
+			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
+			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
+
+			return this;
+
+		},
+
+		negate: function () {
+
+			this.x = - this.x;
+			this.y = - this.y;
+
+			return this;
+
+		},
+
+		dot: function ( v ) {
+
+			return this.x * v.x + this.y * v.y;
+
+		},
+
+		cross: function ( v ) {
+
+			return this.x * v.y - this.y * v.x;
+
+		},
+
+		lengthSq: function () {
+
+			return this.x * this.x + this.y * this.y;
+
+		},
+
+		length: function () {
+
+			return Math.sqrt( this.x * this.x + this.y * this.y );
+
+		},
+
+		manhattanLength: function () {
+
+			return Math.abs( this.x ) + Math.abs( this.y );
+
+		},
+
+		normalize: function () {
+
+			return this.divideScalar( this.length() || 1 );
+
+		},
+
+		angle: function () {
+
+			// computes the angle in radians with respect to the positive x-axis
+
+			var angle = Math.atan2( this.y, this.x );
+
+			if ( angle < 0 ) angle += 2 * Math.PI;
+
+			return angle;
+
+		},
+
+		distanceTo: function ( v ) {
+
+			return Math.sqrt( this.distanceToSquared( v ) );
+
+		},
+
+		distanceToSquared: function ( v ) {
+
+			var dx = this.x - v.x, dy = this.y - v.y;
+			return dx * dx + dy * dy;
+
+		},
+
+		manhattanDistanceTo: function ( v ) {
+
+			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );
+
+		},
+
+		setLength: function ( length ) {
+
+			return this.normalize().multiplyScalar( length );
+
+		},
+
+		lerp: function ( v, alpha ) {
+
+			this.x += ( v.x - this.x ) * alpha;
+			this.y += ( v.y - this.y ) * alpha;
+
+			return this;
+
+		},
+
+		lerpVectors: function ( v1, v2, alpha ) {
+
+			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
+
+		},
+
+		equals: function ( v ) {
+
+			return ( ( v.x === this.x ) && ( v.y === this.y ) );
+
+		},
+
+		fromArray: function ( array, offset ) {
+
+			if ( offset === undefined ) offset = 0;
+
+			this.x = array[ offset ];
+			this.y = array[ offset + 1 ];
+
+			return this;
+
+		},
+
+		toArray: function ( array, offset ) {
+
+			if ( array === undefined ) array = [];
+			if ( offset === undefined ) offset = 0;
+
+			array[ offset ] = this.x;
+			array[ offset + 1 ] = this.y;
+
+			return array;
+
+		},
+
+		fromBufferAttribute: function ( attribute, index, offset ) {
+
+			if ( offset !== undefined ) {
+
+				console.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' );
+
+			}
+
+			this.x = attribute.getX( index );
+			this.y = attribute.getY( index );
+
+			return this;
+
+		},
+
+		rotateAround: function ( center, angle ) {
+
+			var c = Math.cos( angle ), s = Math.sin( angle );
+
+			var x = this.x - center.x;
+			var y = this.y - center.y;
+
+			this.x = x * c - y * s + center.x;
+			this.y = x * s + y * c + center.y;
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 * @author bhouston / http://clara.io
+	 */
+
+	function Quaternion( x, y, z, w ) {
+
+		this._x = x || 0;
+		this._y = y || 0;
+		this._z = z || 0;
+		this._w = ( w !== undefined ) ? w : 1;
+
+	}
+
+	Object.assign( Quaternion, {
+
+		slerp: function ( qa, qb, qm, t ) {
+
+			return qm.copy( qa ).slerp( qb, t );
+
+		},
+
+		slerpFlat: function ( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {
+
+			// fuzz-free, array-based Quaternion SLERP operation
+
+			var x0 = src0[ srcOffset0 + 0 ],
+				y0 = src0[ srcOffset0 + 1 ],
+				z0 = src0[ srcOffset0 + 2 ],
+				w0 = src0[ srcOffset0 + 3 ],
+
+				x1 = src1[ srcOffset1 + 0 ],
+				y1 = src1[ srcOffset1 + 1 ],
+				z1 = src1[ srcOffset1 + 2 ],
+				w1 = src1[ srcOffset1 + 3 ];
+
+			if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {
+
+				var s = 1 - t,
+
+					cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,
+
+					dir = ( cos >= 0 ? 1 : - 1 ),
+					sqrSin = 1 - cos * cos;
+
+				// Skip the Slerp for tiny steps to avoid numeric problems:
+				if ( sqrSin > Number.EPSILON ) {
+
+					var sin = Math.sqrt( sqrSin ),
+						len = Math.atan2( sin, cos * dir );
+
+					s = Math.sin( s * len ) / sin;
+					t = Math.sin( t * len ) / sin;
+
+				}
+
+				var tDir = t * dir;
+
+				x0 = x0 * s + x1 * tDir;
+				y0 = y0 * s + y1 * tDir;
+				z0 = z0 * s + z1 * tDir;
+				w0 = w0 * s + w1 * tDir;
+
+				// Normalize in case we just did a lerp:
+				if ( s === 1 - t ) {
+
+					var f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );
+
+					x0 *= f;
+					y0 *= f;
+					z0 *= f;
+					w0 *= f;
+
+				}
+
+			}
+
+			dst[ dstOffset ] = x0;
+			dst[ dstOffset + 1 ] = y0;
+			dst[ dstOffset + 2 ] = z0;
+			dst[ dstOffset + 3 ] = w0;
+
+		}
+
+	} );
+
+	Object.defineProperties( Quaternion.prototype, {
+
+		x: {
+
+			get: function () {
+
+				return this._x;
+
+			},
+
+			set: function ( value ) {
+
+				this._x = value;
+				this.onChangeCallback();
+
+			}
+
+		},
+
+		y: {
+
+			get: function () {
+
+				return this._y;
+
+			},
+
+			set: function ( value ) {
+
+				this._y = value;
+				this.onChangeCallback();
+
+			}
+
+		},
+
+		z: {
+
+			get: function () {
+
+				return this._z;
+
+			},
+
+			set: function ( value ) {
+
+				this._z = value;
+				this.onChangeCallback();
+
+			}
+
+		},
+
+		w: {
+
+			get: function () {
+
+				return this._w;
+
+			},
+
+			set: function ( value ) {
+
+				this._w = value;
+				this.onChangeCallback();
+
+			}
+
+		}
+
+	} );
+
+	Object.assign( Quaternion.prototype, {
+
+		isQuaternion: true,
+
+		set: function ( x, y, z, w ) {
+
+			this._x = x;
+			this._y = y;
+			this._z = z;
+			this._w = w;
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor( this._x, this._y, this._z, this._w );
+
+		},
+
+		copy: function ( quaternion ) {
+
+			this._x = quaternion.x;
+			this._y = quaternion.y;
+			this._z = quaternion.z;
+			this._w = quaternion.w;
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		setFromEuler: function ( euler, update ) {
+
+			if ( ! ( euler && euler.isEuler ) ) {
+
+				throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );
+
+			}
+
+			var x = euler._x, y = euler._y, z = euler._z, order = euler.order;
+
+			// http://www.mathworks.com/matlabcentral/fileexchange/
+			// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
+			//	content/SpinCalc.m
+
+			var cos = Math.cos;
+			var sin = Math.sin;
+
+			var c1 = cos( x / 2 );
+			var c2 = cos( y / 2 );
+			var c3 = cos( z / 2 );
+
+			var s1 = sin( x / 2 );
+			var s2 = sin( y / 2 );
+			var s3 = sin( z / 2 );
+
+			if ( order === 'XYZ' ) {
+
+				this._x = s1 * c2 * c3 + c1 * s2 * s3;
+				this._y = c1 * s2 * c3 - s1 * c2 * s3;
+				this._z = c1 * c2 * s3 + s1 * s2 * c3;
+				this._w = c1 * c2 * c3 - s1 * s2 * s3;
+
+			} else if ( order === 'YXZ' ) {
+
+				this._x = s1 * c2 * c3 + c1 * s2 * s3;
+				this._y = c1 * s2 * c3 - s1 * c2 * s3;
+				this._z = c1 * c2 * s3 - s1 * s2 * c3;
+				this._w = c1 * c2 * c3 + s1 * s2 * s3;
+
+			} else if ( order === 'ZXY' ) {
+
+				this._x = s1 * c2 * c3 - c1 * s2 * s3;
+				this._y = c1 * s2 * c3 + s1 * c2 * s3;
+				this._z = c1 * c2 * s3 + s1 * s2 * c3;
+				this._w = c1 * c2 * c3 - s1 * s2 * s3;
+
+			} else if ( order === 'ZYX' ) {
+
+				this._x = s1 * c2 * c3 - c1 * s2 * s3;
+				this._y = c1 * s2 * c3 + s1 * c2 * s3;
+				this._z = c1 * c2 * s3 - s1 * s2 * c3;
+				this._w = c1 * c2 * c3 + s1 * s2 * s3;
+
+			} else if ( order === 'YZX' ) {
+
+				this._x = s1 * c2 * c3 + c1 * s2 * s3;
+				this._y = c1 * s2 * c3 + s1 * c2 * s3;
+				this._z = c1 * c2 * s3 - s1 * s2 * c3;
+				this._w = c1 * c2 * c3 - s1 * s2 * s3;
+
+			} else if ( order === 'XZY' ) {
+
+				this._x = s1 * c2 * c3 - c1 * s2 * s3;
+				this._y = c1 * s2 * c3 - s1 * c2 * s3;
+				this._z = c1 * c2 * s3 + s1 * s2 * c3;
+				this._w = c1 * c2 * c3 + s1 * s2 * s3;
+
+			}
+
+			if ( update !== false ) this.onChangeCallback();
+
+			return this;
+
+		},
+
+		setFromAxisAngle: function ( axis, angle ) {
+
+			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
+
+			// assumes axis is normalized
+
+			var halfAngle = angle / 2, s = Math.sin( halfAngle );
+
+			this._x = axis.x * s;
+			this._y = axis.y * s;
+			this._z = axis.z * s;
+			this._w = Math.cos( halfAngle );
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		setFromRotationMatrix: function ( m ) {
+
+			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
+
+			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+
+			var te = m.elements,
+
+				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
+				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
+				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],
+
+				trace = m11 + m22 + m33,
+				s;
+
+			if ( trace > 0 ) {
+
+				s = 0.5 / Math.sqrt( trace + 1.0 );
+
+				this._w = 0.25 / s;
+				this._x = ( m32 - m23 ) * s;
+				this._y = ( m13 - m31 ) * s;
+				this._z = ( m21 - m12 ) * s;
+
+			} else if ( m11 > m22 && m11 > m33 ) {
+
+				s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );
+
+				this._w = ( m32 - m23 ) / s;
+				this._x = 0.25 * s;
+				this._y = ( m12 + m21 ) / s;
+				this._z = ( m13 + m31 ) / s;
+
+			} else if ( m22 > m33 ) {
+
+				s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );
+
+				this._w = ( m13 - m31 ) / s;
+				this._x = ( m12 + m21 ) / s;
+				this._y = 0.25 * s;
+				this._z = ( m23 + m32 ) / s;
+
+			} else {
+
+				s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );
+
+				this._w = ( m21 - m12 ) / s;
+				this._x = ( m13 + m31 ) / s;
+				this._y = ( m23 + m32 ) / s;
+				this._z = 0.25 * s;
+
+			}
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		setFromUnitVectors: function ( vFrom, vTo ) {
+
+			// assumes direction vectors vFrom and vTo are normalized
+
+			var EPS = 0.000001;
+
+			var r = vFrom.dot( vTo ) + 1;
+
+			if ( r < EPS ) {
+
+				r = 0;
+
+				if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {
+
+					this._x = - vFrom.y;
+					this._y = vFrom.x;
+					this._z = 0;
+					this._w = r;
+
+				} else {
+
+					this._x = 0;
+					this._y = - vFrom.z;
+					this._z = vFrom.y;
+					this._w = r;
+
+				}
+
+			} else {
+
+				// crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3
+
+				this._x = vFrom.y * vTo.z - vFrom.z * vTo.y;
+				this._y = vFrom.z * vTo.x - vFrom.x * vTo.z;
+				this._z = vFrom.x * vTo.y - vFrom.y * vTo.x;
+				this._w = r;
+
+			}
+
+			return this.normalize();
+
+		},
+
+		angleTo: function ( q ) {
+
+			return 2 * Math.acos( Math.abs( _Math.clamp( this.dot( q ), - 1, 1 ) ) );
+
+		},
+
+		rotateTowards: function ( q, step ) {
+
+			var angle = this.angleTo( q );
+
+			if ( angle === 0 ) return this;
+
+			var t = Math.min( 1, step / angle );
+
+			this.slerp( q, t );
+
+			return this;
+
+		},
+
+		inverse: function () {
+
+			// quaternion is assumed to have unit length
+
+			return this.conjugate();
+
+		},
+
+		conjugate: function () {
+
+			this._x *= - 1;
+			this._y *= - 1;
+			this._z *= - 1;
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		dot: function ( v ) {
+
+			return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;
+
+		},
+
+		lengthSq: function () {
+
+			return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;
+
+		},
+
+		length: function () {
+
+			return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );
+
+		},
+
+		normalize: function () {
+
+			var l = this.length();
+
+			if ( l === 0 ) {
+
+				this._x = 0;
+				this._y = 0;
+				this._z = 0;
+				this._w = 1;
+
+			} else {
+
+				l = 1 / l;
+
+				this._x = this._x * l;
+				this._y = this._y * l;
+				this._z = this._z * l;
+				this._w = this._w * l;
+
+			}
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		multiply: function ( q, p ) {
+
+			if ( p !== undefined ) {
+
+				console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
+				return this.multiplyQuaternions( q, p );
+
+			}
+
+			return this.multiplyQuaternions( this, q );
+
+		},
+
+		premultiply: function ( q ) {
+
+			return this.multiplyQuaternions( q, this );
+
+		},
+
+		multiplyQuaternions: function ( a, b ) {
+
+			// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
+
+			var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
+			var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;
+
+			this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
+			this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
+			this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
+			this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		slerp: function ( qb, t ) {
+
+			if ( t === 0 ) return this;
+			if ( t === 1 ) return this.copy( qb );
+
+			var x = this._x, y = this._y, z = this._z, w = this._w;
+
+			// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/
+
+			var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;
+
+			if ( cosHalfTheta < 0 ) {
+
+				this._w = - qb._w;
+				this._x = - qb._x;
+				this._y = - qb._y;
+				this._z = - qb._z;
+
+				cosHalfTheta = - cosHalfTheta;
+
+			} else {
+
+				this.copy( qb );
+
+			}
+
+			if ( cosHalfTheta >= 1.0 ) {
+
+				this._w = w;
+				this._x = x;
+				this._y = y;
+				this._z = z;
+
+				return this;
+
+			}
+
+			var sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;
+
+			if ( sqrSinHalfTheta <= Number.EPSILON ) {
+
+				var s = 1 - t;
+				this._w = s * w + t * this._w;
+				this._x = s * x + t * this._x;
+				this._y = s * y + t * this._y;
+				this._z = s * z + t * this._z;
+
+				return this.normalize();
+
+			}
+
+			var sinHalfTheta = Math.sqrt( sqrSinHalfTheta );
+			var halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );
+			var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
+				ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;
+
+			this._w = ( w * ratioA + this._w * ratioB );
+			this._x = ( x * ratioA + this._x * ratioB );
+			this._y = ( y * ratioA + this._y * ratioB );
+			this._z = ( z * ratioA + this._z * ratioB );
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		equals: function ( quaternion ) {
+
+			return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );
+
+		},
+
+		fromArray: function ( array, offset ) {
+
+			if ( offset === undefined ) offset = 0;
+
+			this._x = array[ offset ];
+			this._y = array[ offset + 1 ];
+			this._z = array[ offset + 2 ];
+			this._w = array[ offset + 3 ];
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		toArray: function ( array, offset ) {
+
+			if ( array === undefined ) array = [];
+			if ( offset === undefined ) offset = 0;
+
+			array[ offset ] = this._x;
+			array[ offset + 1 ] = this._y;
+			array[ offset + 2 ] = this._z;
+			array[ offset + 3 ] = this._w;
+
+			return array;
+
+		},
+
+		onChange: function ( callback ) {
+
+			this.onChangeCallback = callback;
+
+			return this;
+
+		},
+
+		onChangeCallback: function () {}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author kile / http://kile.stravaganza.org/
+	 * @author philogb / http://blog.thejit.org/
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author egraether / http://egraether.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function Vector3( x, y, z ) {
+
+		this.x = x || 0;
+		this.y = y || 0;
+		this.z = z || 0;
+
+	}
+
+	Object.assign( Vector3.prototype, {
+
+		isVector3: true,
+
+		set: function ( x, y, z ) {
+
+			this.x = x;
+			this.y = y;
+			this.z = z;
+
+			return this;
+
+		},
+
+		setScalar: function ( scalar ) {
+
+			this.x = scalar;
+			this.y = scalar;
+			this.z = scalar;
+
+			return this;
+
+		},
+
+		setX: function ( x ) {
+
+			this.x = x;
+
+			return this;
+
+		},
+
+		setY: function ( y ) {
+
+			this.y = y;
+
+			return this;
+
+		},
+
+		setZ: function ( z ) {
+
+			this.z = z;
+
+			return this;
+
+		},
+
+		setComponent: function ( index, value ) {
+
+			switch ( index ) {
+
+				case 0: this.x = value; break;
+				case 1: this.y = value; break;
+				case 2: this.z = value; break;
+				default: throw new Error( 'index is out of range: ' + index );
+
+			}
+
+			return this;
+
+		},
+
+		getComponent: function ( index ) {
+
+			switch ( index ) {
+
+				case 0: return this.x;
+				case 1: return this.y;
+				case 2: return this.z;
+				default: throw new Error( 'index is out of range: ' + index );
+
+			}
+
+		},
+
+		clone: function () {
+
+			return new this.constructor( this.x, this.y, this.z );
+
+		},
+
+		copy: function ( v ) {
+
+			this.x = v.x;
+			this.y = v.y;
+			this.z = v.z;
+
+			return this;
+
+		},
+
+		add: function ( v, w ) {
+
+			if ( w !== undefined ) {
+
+				console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
+				return this.addVectors( v, w );
+
+			}
+
+			this.x += v.x;
+			this.y += v.y;
+			this.z += v.z;
+
+			return this;
+
+		},
+
+		addScalar: function ( s ) {
+
+			this.x += s;
+			this.y += s;
+			this.z += s;
+
+			return this;
+
+		},
+
+		addVectors: function ( a, b ) {
+
+			this.x = a.x + b.x;
+			this.y = a.y + b.y;
+			this.z = a.z + b.z;
+
+			return this;
+
+		},
+
+		addScaledVector: function ( v, s ) {
+
+			this.x += v.x * s;
+			this.y += v.y * s;
+			this.z += v.z * s;
+
+			return this;
+
+		},
+
+		sub: function ( v, w ) {
+
+			if ( w !== undefined ) {
+
+				console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
+				return this.subVectors( v, w );
+
+			}
+
+			this.x -= v.x;
+			this.y -= v.y;
+			this.z -= v.z;
+
+			return this;
+
+		},
+
+		subScalar: function ( s ) {
+
+			this.x -= s;
+			this.y -= s;
+			this.z -= s;
+
+			return this;
+
+		},
+
+		subVectors: function ( a, b ) {
+
+			this.x = a.x - b.x;
+			this.y = a.y - b.y;
+			this.z = a.z - b.z;
+
+			return this;
+
+		},
+
+		multiply: function ( v, w ) {
+
+			if ( w !== undefined ) {
+
+				console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );
+				return this.multiplyVectors( v, w );
+
+			}
+
+			this.x *= v.x;
+			this.y *= v.y;
+			this.z *= v.z;
+
+			return this;
+
+		},
+
+		multiplyScalar: function ( scalar ) {
+
+			this.x *= scalar;
+			this.y *= scalar;
+			this.z *= scalar;
+
+			return this;
+
+		},
+
+		multiplyVectors: function ( a, b ) {
+
+			this.x = a.x * b.x;
+			this.y = a.y * b.y;
+			this.z = a.z * b.z;
+
+			return this;
+
+		},
+
+		applyEuler: function () {
+
+			var quaternion = new Quaternion();
+
+			return function applyEuler( euler ) {
+
+				if ( ! ( euler && euler.isEuler ) ) {
+
+					console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );
+
+				}
+
+				return this.applyQuaternion( quaternion.setFromEuler( euler ) );
+
+			};
+
+		}(),
+
+		applyAxisAngle: function () {
+
+			var quaternion = new Quaternion();
+
+			return function applyAxisAngle( axis, angle ) {
+
+				return this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );
+
+			};
+
+		}(),
+
+		applyMatrix3: function ( m ) {
+
+			var x = this.x, y = this.y, z = this.z;
+			var e = m.elements;
+
+			this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
+			this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
+			this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;
+
+			return this;
+
+		},
+
+		applyMatrix4: function ( m ) {
+
+			var x = this.x, y = this.y, z = this.z;
+			var e = m.elements;
+
+			var w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );
+
+			this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w;
+			this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w;
+			this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;
+
+			return this;
+
+		},
+
+		applyQuaternion: function ( q ) {
+
+			var x = this.x, y = this.y, z = this.z;
+			var qx = q.x, qy = q.y, qz = q.z, qw = q.w;
+
+			// calculate quat * vector
+
+			var ix = qw * x + qy * z - qz * y;
+			var iy = qw * y + qz * x - qx * z;
+			var iz = qw * z + qx * y - qy * x;
+			var iw = - qx * x - qy * y - qz * z;
+
+			// calculate result * inverse quat
+
+			this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
+			this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
+			this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;
+
+			return this;
+
+		},
+
+		project: function ( camera ) {
+
+			return this.applyMatrix4( camera.matrixWorldInverse ).applyMatrix4( camera.projectionMatrix );
+
+		},
+
+		unproject: function ( camera ) {
+
+			return this.applyMatrix4( camera.projectionMatrixInverse ).applyMatrix4( camera.matrixWorld );
+
+		},
+
+		transformDirection: function ( m ) {
+
+			// input: THREE.Matrix4 affine matrix
+			// vector interpreted as a direction
+
+			var x = this.x, y = this.y, z = this.z;
+			var e = m.elements;
+
+			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;
+			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;
+			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;
+
+			return this.normalize();
+
+		},
+
+		divide: function ( v ) {
+
+			this.x /= v.x;
+			this.y /= v.y;
+			this.z /= v.z;
+
+			return this;
+
+		},
+
+		divideScalar: function ( scalar ) {
+
+			return this.multiplyScalar( 1 / scalar );
+
+		},
+
+		min: function ( v ) {
+
+			this.x = Math.min( this.x, v.x );
+			this.y = Math.min( this.y, v.y );
+			this.z = Math.min( this.z, v.z );
+
+			return this;
+
+		},
+
+		max: function ( v ) {
+
+			this.x = Math.max( this.x, v.x );
+			this.y = Math.max( this.y, v.y );
+			this.z = Math.max( this.z, v.z );
+
+			return this;
+
+		},
+
+		clamp: function ( min, max ) {
+
+			// assumes min < max, componentwise
+
+			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
+			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
+			this.z = Math.max( min.z, Math.min( max.z, this.z ) );
+
+			return this;
+
+		},
+
+		clampScalar: function ( minVal, maxVal ) {
+
+			this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
+			this.y = Math.max( minVal, Math.min( maxVal, this.y ) );
+			this.z = Math.max( minVal, Math.min( maxVal, this.z ) );
+
+			return this;
+
+		},
+
+		clampLength: function ( min, max ) {
+
+			var length = this.length();
+
+			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
+
+		},
+
+		floor: function () {
+
+			this.x = Math.floor( this.x );
+			this.y = Math.floor( this.y );
+			this.z = Math.floor( this.z );
+
+			return this;
+
+		},
+
+		ceil: function () {
+
+			this.x = Math.ceil( this.x );
+			this.y = Math.ceil( this.y );
+			this.z = Math.ceil( this.z );
+
+			return this;
+
+		},
+
+		round: function () {
+
+			this.x = Math.round( this.x );
+			this.y = Math.round( this.y );
+			this.z = Math.round( this.z );
+
+			return this;
+
+		},
+
+		roundToZero: function () {
+
+			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
+			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
+			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
+
+			return this;
+
+		},
+
+		negate: function () {
+
+			this.x = - this.x;
+			this.y = - this.y;
+			this.z = - this.z;
+
+			return this;
+
+		},
+
+		dot: function ( v ) {
+
+			return this.x * v.x + this.y * v.y + this.z * v.z;
+
+		},
+
+		// TODO lengthSquared?
+
+		lengthSq: function () {
+
+			return this.x * this.x + this.y * this.y + this.z * this.z;
+
+		},
+
+		length: function () {
+
+			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );
+
+		},
+
+		manhattanLength: function () {
+
+			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );
+
+		},
+
+		normalize: function () {
+
+			return this.divideScalar( this.length() || 1 );
+
+		},
+
+		setLength: function ( length ) {
+
+			return this.normalize().multiplyScalar( length );
+
+		},
+
+		lerp: function ( v, alpha ) {
+
+			this.x += ( v.x - this.x ) * alpha;
+			this.y += ( v.y - this.y ) * alpha;
+			this.z += ( v.z - this.z ) * alpha;
+
+			return this;
+
+		},
+
+		lerpVectors: function ( v1, v2, alpha ) {
+
+			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
+
+		},
+
+		cross: function ( v, w ) {
+
+			if ( w !== undefined ) {
+
+				console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );
+				return this.crossVectors( v, w );
+
+			}
+
+			return this.crossVectors( this, v );
+
+		},
+
+		crossVectors: function ( a, b ) {
+
+			var ax = a.x, ay = a.y, az = a.z;
+			var bx = b.x, by = b.y, bz = b.z;
+
+			this.x = ay * bz - az * by;
+			this.y = az * bx - ax * bz;
+			this.z = ax * by - ay * bx;
+
+			return this;
+
+		},
+
+		projectOnVector: function ( vector ) {
+
+			var scalar = vector.dot( this ) / vector.lengthSq();
+
+			return this.copy( vector ).multiplyScalar( scalar );
+
+		},
+
+		projectOnPlane: function () {
+
+			var v1 = new Vector3();
+
+			return function projectOnPlane( planeNormal ) {
+
+				v1.copy( this ).projectOnVector( planeNormal );
+
+				return this.sub( v1 );
+
+			};
+
+		}(),
+
+		reflect: function () {
+
+			// reflect incident vector off plane orthogonal to normal
+			// normal is assumed to have unit length
+
+			var v1 = new Vector3();
+
+			return function reflect( normal ) {
+
+				return this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );
+
+			};
+
+		}(),
+
+		angleTo: function ( v ) {
+
+			var theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );
+
+			// clamp, to handle numerical problems
+
+			return Math.acos( _Math.clamp( theta, - 1, 1 ) );
+
+		},
+
+		distanceTo: function ( v ) {
+
+			return Math.sqrt( this.distanceToSquared( v ) );
+
+		},
+
+		distanceToSquared: function ( v ) {
+
+			var dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;
+
+			return dx * dx + dy * dy + dz * dz;
+
+		},
+
+		manhattanDistanceTo: function ( v ) {
+
+			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );
+
+		},
+
+		setFromSpherical: function ( s ) {
+
+			return this.setFromSphericalCoords( s.radius, s.phi, s.theta );
+
+		},
+
+		setFromSphericalCoords: function ( radius, phi, theta ) {
+
+			var sinPhiRadius = Math.sin( phi ) * radius;
+
+			this.x = sinPhiRadius * Math.sin( theta );
+			this.y = Math.cos( phi ) * radius;
+			this.z = sinPhiRadius * Math.cos( theta );
+
+			return this;
+
+		},
+
+		setFromCylindrical: function ( c ) {
+
+			return this.setFromCylindricalCoords( c.radius, c.theta, c.y );
+
+		},
+
+		setFromCylindricalCoords: function ( radius, theta, y ) {
+
+			this.x = radius * Math.sin( theta );
+			this.y = y;
+			this.z = radius * Math.cos( theta );
+
+			return this;
+
+		},
+
+		setFromMatrixPosition: function ( m ) {
+
+			var e = m.elements;
+
+			this.x = e[ 12 ];
+			this.y = e[ 13 ];
+			this.z = e[ 14 ];
+
+			return this;
+
+		},
+
+		setFromMatrixScale: function ( m ) {
+
+			var sx = this.setFromMatrixColumn( m, 0 ).length();
+			var sy = this.setFromMatrixColumn( m, 1 ).length();
+			var sz = this.setFromMatrixColumn( m, 2 ).length();
+
+			this.x = sx;
+			this.y = sy;
+			this.z = sz;
+
+			return this;
+
+		},
+
+		setFromMatrixColumn: function ( m, index ) {
+
+			return this.fromArray( m.elements, index * 4 );
+
+		},
+
+		equals: function ( v ) {
+
+			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );
+
+		},
+
+		fromArray: function ( array, offset ) {
+
+			if ( offset === undefined ) offset = 0;
+
+			this.x = array[ offset ];
+			this.y = array[ offset + 1 ];
+			this.z = array[ offset + 2 ];
+
+			return this;
+
+		},
+
+		toArray: function ( array, offset ) {
+
+			if ( array === undefined ) array = [];
+			if ( offset === undefined ) offset = 0;
+
+			array[ offset ] = this.x;
+			array[ offset + 1 ] = this.y;
+			array[ offset + 2 ] = this.z;
+
+			return array;
+
+		},
+
+		fromBufferAttribute: function ( attribute, index, offset ) {
+
+			if ( offset !== undefined ) {
+
+				console.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' );
+
+			}
+
+			this.x = attribute.getX( index );
+			this.y = attribute.getY( index );
+			this.z = attribute.getZ( index );
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 * @author bhouston / http://clara.io
+	 * @author tschw
+	 */
+
+	function Matrix3() {
+
+		this.elements = [
+
+			1, 0, 0,
+			0, 1, 0,
+			0, 0, 1
+
+		];
+
+		if ( arguments.length > 0 ) {
+
+			console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );
+
+		}
+
+	}
+
+	Object.assign( Matrix3.prototype, {
+
+		isMatrix3: true,
+
+		set: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {
+
+			var te = this.elements;
+
+			te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;
+			te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;
+			te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;
+
+			return this;
+
+		},
+
+		identity: function () {
+
+			this.set(
+
+				1, 0, 0,
+				0, 1, 0,
+				0, 0, 1
+
+			);
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().fromArray( this.elements );
+
+		},
+
+		copy: function ( m ) {
+
+			var te = this.elements;
+			var me = m.elements;
+
+			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];
+			te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];
+			te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];
+
+			return this;
+
+		},
+
+		setFromMatrix4: function ( m ) {
+
+			var me = m.elements;
+
+			this.set(
+
+				me[ 0 ], me[ 4 ], me[ 8 ],
+				me[ 1 ], me[ 5 ], me[ 9 ],
+				me[ 2 ], me[ 6 ], me[ 10 ]
+
+			);
+
+			return this;
+
+		},
+
+		applyToBufferAttribute: function () {
+
+			var v1 = new Vector3();
+
+			return function applyToBufferAttribute( attribute ) {
+
+				for ( var i = 0, l = attribute.count; i < l; i ++ ) {
+
+					v1.x = attribute.getX( i );
+					v1.y = attribute.getY( i );
+					v1.z = attribute.getZ( i );
+
+					v1.applyMatrix3( this );
+
+					attribute.setXYZ( i, v1.x, v1.y, v1.z );
+
+				}
+
+				return attribute;
+
+			};
+
+		}(),
+
+		multiply: function ( m ) {
+
+			return this.multiplyMatrices( this, m );
+
+		},
+
+		premultiply: function ( m ) {
+
+			return this.multiplyMatrices( m, this );
+
+		},
+
+		multiplyMatrices: function ( a, b ) {
+
+			var ae = a.elements;
+			var be = b.elements;
+			var te = this.elements;
+
+			var a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];
+			var a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];
+			var a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];
+
+			var b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];
+			var b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];
+			var b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];
+
+			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;
+			te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;
+			te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;
+
+			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;
+			te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;
+			te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;
+
+			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;
+			te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;
+			te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;
+
+			return this;
+
+		},
+
+		multiplyScalar: function ( s ) {
+
+			var te = this.elements;
+
+			te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;
+			te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;
+			te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;
+
+			return this;
+
+		},
+
+		determinant: function () {
+
+			var te = this.elements;
+
+			var a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],
+				d = te[ 3 ], e = te[ 4 ], f = te[ 5 ],
+				g = te[ 6 ], h = te[ 7 ], i = te[ 8 ];
+
+			return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;
+
+		},
+
+		getInverse: function ( matrix, throwOnDegenerate ) {
+
+			if ( matrix && matrix.isMatrix4 ) {
+
+				console.error( "THREE.Matrix3: .getInverse() no longer takes a Matrix4 argument." );
+
+			}
+
+			var me = matrix.elements,
+				te = this.elements,
+
+				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ],
+				n12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ],
+				n13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ],
+
+				t11 = n33 * n22 - n32 * n23,
+				t12 = n32 * n13 - n33 * n12,
+				t13 = n23 * n12 - n22 * n13,
+
+				det = n11 * t11 + n21 * t12 + n31 * t13;
+
+			if ( det === 0 ) {
+
+				var msg = "THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0";
+
+				if ( throwOnDegenerate === true ) {
+
+					throw new Error( msg );
+
+				} else {
+
+					console.warn( msg );
+
+				}
+
+				return this.identity();
+
+			}
+
+			var detInv = 1 / det;
+
+			te[ 0 ] = t11 * detInv;
+			te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;
+			te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;
+
+			te[ 3 ] = t12 * detInv;
+			te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;
+			te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;
+
+			te[ 6 ] = t13 * detInv;
+			te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;
+			te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;
+
+			return this;
+
+		},
+
+		transpose: function () {
+
+			var tmp, m = this.elements;
+
+			tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;
+			tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;
+			tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;
+
+			return this;
+
+		},
+
+		getNormalMatrix: function ( matrix4 ) {
+
+			return this.setFromMatrix4( matrix4 ).getInverse( this ).transpose();
+
+		},
+
+		transposeIntoArray: function ( r ) {
+
+			var m = this.elements;
+
+			r[ 0 ] = m[ 0 ];
+			r[ 1 ] = m[ 3 ];
+			r[ 2 ] = m[ 6 ];
+			r[ 3 ] = m[ 1 ];
+			r[ 4 ] = m[ 4 ];
+			r[ 5 ] = m[ 7 ];
+			r[ 6 ] = m[ 2 ];
+			r[ 7 ] = m[ 5 ];
+			r[ 8 ] = m[ 8 ];
+
+			return this;
+
+		},
+
+		setUvTransform: function ( tx, ty, sx, sy, rotation, cx, cy ) {
+
+			var c = Math.cos( rotation );
+			var s = Math.sin( rotation );
+
+			this.set(
+				sx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx,
+				- sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty,
+				0, 0, 1
+			);
+
+		},
+
+		scale: function ( sx, sy ) {
+
+			var te = this.elements;
+
+			te[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx;
+			te[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy;
+
+			return this;
+
+		},
+
+		rotate: function ( theta ) {
+
+			var c = Math.cos( theta );
+			var s = Math.sin( theta );
+
+			var te = this.elements;
+
+			var a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ];
+			var a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ];
+
+			te[ 0 ] = c * a11 + s * a21;
+			te[ 3 ] = c * a12 + s * a22;
+			te[ 6 ] = c * a13 + s * a23;
+
+			te[ 1 ] = - s * a11 + c * a21;
+			te[ 4 ] = - s * a12 + c * a22;
+			te[ 7 ] = - s * a13 + c * a23;
+
+			return this;
+
+		},
+
+		translate: function ( tx, ty ) {
+
+			var te = this.elements;
+
+			te[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ];
+			te[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ];
+
+			return this;
+
+		},
+
+		equals: function ( matrix ) {
+
+			var te = this.elements;
+			var me = matrix.elements;
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				if ( te[ i ] !== me[ i ] ) return false;
+
+			}
+
+			return true;
+
+		},
+
+		fromArray: function ( array, offset ) {
+
+			if ( offset === undefined ) offset = 0;
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				this.elements[ i ] = array[ i + offset ];
+
+			}
+
+			return this;
+
+		},
+
+		toArray: function ( array, offset ) {
+
+			if ( array === undefined ) array = [];
+			if ( offset === undefined ) offset = 0;
+
+			var te = this.elements;
+
+			array[ offset ] = te[ 0 ];
+			array[ offset + 1 ] = te[ 1 ];
+			array[ offset + 2 ] = te[ 2 ];
+
+			array[ offset + 3 ] = te[ 3 ];
+			array[ offset + 4 ] = te[ 4 ];
+			array[ offset + 5 ] = te[ 5 ];
+
+			array[ offset + 6 ] = te[ 6 ];
+			array[ offset + 7 ] = te[ 7 ];
+			array[ offset + 8 ] = te[ 8 ];
+
+			return array;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author szimek / https://github.com/szimek/
+	 */
+
+	var _canvas;
+
+	var ImageUtils = {
+
+		getDataURL: function ( image ) {
+
+			var canvas;
+
+			if ( typeof HTMLCanvasElement == 'undefined' ) {
+
+				return image.src;
+
+			} else if ( image instanceof HTMLCanvasElement ) {
+
+				canvas = image;
+
+			} else {
+
+				if ( _canvas === undefined ) _canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
+
+				_canvas.width = image.width;
+				_canvas.height = image.height;
+
+				var context = _canvas.getContext( '2d' );
+
+				if ( image instanceof ImageData ) {
+
+					context.putImageData( image, 0, 0 );
+
+				} else {
+
+					context.drawImage( image, 0, 0, image.width, image.height );
+
+				}
+
+				canvas = _canvas;
+
+			}
+
+			if ( canvas.width > 2048 || canvas.height > 2048 ) {
+
+				return canvas.toDataURL( 'image/jpeg', 0.6 );
+
+			} else {
+
+				return canvas.toDataURL( 'image/png' );
+
+			}
+
+		}
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author szimek / https://github.com/szimek/
+	 */
+
+	var textureId = 0;
+
+	function Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {
+
+		Object.defineProperty( this, 'id', { value: textureId ++ } );
+
+		this.uuid = _Math.generateUUID();
+
+		this.name = '';
+
+		this.image = image !== undefined ? image : Texture.DEFAULT_IMAGE;
+		this.mipmaps = [];
+
+		this.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING;
+
+		this.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping;
+		this.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping;
+
+		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
+		this.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter;
+
+		this.anisotropy = anisotropy !== undefined ? anisotropy : 1;
+
+		this.format = format !== undefined ? format : RGBAFormat;
+		this.type = type !== undefined ? type : UnsignedByteType;
+
+		this.offset = new Vector2( 0, 0 );
+		this.repeat = new Vector2( 1, 1 );
+		this.center = new Vector2( 0, 0 );
+		this.rotation = 0;
+
+		this.matrixAutoUpdate = true;
+		this.matrix = new Matrix3();
+
+		this.generateMipmaps = true;
+		this.premultiplyAlpha = false;
+		this.flipY = true;
+		this.unpackAlignment = 4;	// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)
+
+		// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
+		//
+		// Also changing the encoding after already used by a Material will not automatically make the Material
+		// update. You need to explicitly call Material.needsUpdate to trigger it to recompile.
+		this.encoding = encoding !== undefined ? encoding : LinearEncoding;
+
+		this.version = 0;
+		this.onUpdate = null;
+
+	}
+
+	Texture.DEFAULT_IMAGE = undefined;
+	Texture.DEFAULT_MAPPING = UVMapping;
+
+	Texture.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
+
+		constructor: Texture,
+
+		isTexture: true,
+
+		updateMatrix: function () {
+
+			this.matrix.setUvTransform( this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y );
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( source ) {
+
+			this.name = source.name;
+
+			this.image = source.image;
+			this.mipmaps = source.mipmaps.slice( 0 );
+
+			this.mapping = source.mapping;
+
+			this.wrapS = source.wrapS;
+			this.wrapT = source.wrapT;
+
+			this.magFilter = source.magFilter;
+			this.minFilter = source.minFilter;
+
+			this.anisotropy = source.anisotropy;
+
+			this.format = source.format;
+			this.type = source.type;
+
+			this.offset.copy( source.offset );
+			this.repeat.copy( source.repeat );
+			this.center.copy( source.center );
+			this.rotation = source.rotation;
+
+			this.matrixAutoUpdate = source.matrixAutoUpdate;
+			this.matrix.copy( source.matrix );
+
+			this.generateMipmaps = source.generateMipmaps;
+			this.premultiplyAlpha = source.premultiplyAlpha;
+			this.flipY = source.flipY;
+			this.unpackAlignment = source.unpackAlignment;
+			this.encoding = source.encoding;
+
+			return this;
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var isRootObject = ( meta === undefined || typeof meta === 'string' );
+
+			if ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) {
+
+				return meta.textures[ this.uuid ];
+
+			}
+
+			var output = {
+
+				metadata: {
+					version: 4.5,
+					type: 'Texture',
+					generator: 'Texture.toJSON'
+				},
+
+				uuid: this.uuid,
+				name: this.name,
+
+				mapping: this.mapping,
+
+				repeat: [ this.repeat.x, this.repeat.y ],
+				offset: [ this.offset.x, this.offset.y ],
+				center: [ this.center.x, this.center.y ],
+				rotation: this.rotation,
+
+				wrap: [ this.wrapS, this.wrapT ],
+
+				format: this.format,
+				type: this.type,
+				encoding: this.encoding,
+
+				minFilter: this.minFilter,
+				magFilter: this.magFilter,
+				anisotropy: this.anisotropy,
+
+				flipY: this.flipY,
+
+				premultiplyAlpha: this.premultiplyAlpha,
+				unpackAlignment: this.unpackAlignment
+
+			};
+
+			if ( this.image !== undefined ) {
+
+				// TODO: Move to THREE.Image
+
+				var image = this.image;
+
+				if ( image.uuid === undefined ) {
+
+					image.uuid = _Math.generateUUID(); // UGH
+
+				}
+
+				if ( ! isRootObject && meta.images[ image.uuid ] === undefined ) {
+
+					var url;
+
+					if ( Array.isArray( image ) ) {
+
+						// process array of images e.g. CubeTexture
+
+						url = [];
+
+						for ( var i = 0, l = image.length; i < l; i ++ ) {
+
+							url.push( ImageUtils.getDataURL( image[ i ] ) );
+
+						}
+
+					} else {
+
+						// process single image
+
+						url = ImageUtils.getDataURL( image );
+
+					}
+
+					meta.images[ image.uuid ] = {
+						uuid: image.uuid,
+						url: url
+					};
+
+				}
+
+				output.image = image.uuid;
+
+			}
+
+			if ( ! isRootObject ) {
+
+				meta.textures[ this.uuid ] = output;
+
+			}
+
+			return output;
+
+		},
+
+		dispose: function () {
+
+			this.dispatchEvent( { type: 'dispose' } );
+
+		},
+
+		transformUv: function ( uv ) {
+
+			if ( this.mapping !== UVMapping ) return uv;
+
+			uv.applyMatrix3( this.matrix );
+
+			if ( uv.x < 0 || uv.x > 1 ) {
+
+				switch ( this.wrapS ) {
+
+					case RepeatWrapping:
+
+						uv.x = uv.x - Math.floor( uv.x );
+						break;
+
+					case ClampToEdgeWrapping:
+
+						uv.x = uv.x < 0 ? 0 : 1;
+						break;
+
+					case MirroredRepeatWrapping:
+
+						if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {
+
+							uv.x = Math.ceil( uv.x ) - uv.x;
+
+						} else {
+
+							uv.x = uv.x - Math.floor( uv.x );
+
+						}
+						break;
+
+				}
+
+			}
+
+			if ( uv.y < 0 || uv.y > 1 ) {
+
+				switch ( this.wrapT ) {
+
+					case RepeatWrapping:
+
+						uv.y = uv.y - Math.floor( uv.y );
+						break;
+
+					case ClampToEdgeWrapping:
+
+						uv.y = uv.y < 0 ? 0 : 1;
+						break;
+
+					case MirroredRepeatWrapping:
+
+						if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {
+
+							uv.y = Math.ceil( uv.y ) - uv.y;
+
+						} else {
+
+							uv.y = uv.y - Math.floor( uv.y );
+
+						}
+						break;
+
+				}
+
+			}
+
+			if ( this.flipY ) {
+
+				uv.y = 1 - uv.y;
+
+			}
+
+			return uv;
+
+		}
+
+	} );
+
+	Object.defineProperty( Texture.prototype, "needsUpdate", {
+
+		set: function ( value ) {
+
+			if ( value === true ) this.version ++;
+
+		}
+
+	} );
+
+	/**
+	 * @author supereggbert / http://www.paulbrunt.co.uk/
+	 * @author philogb / http://blog.thejit.org/
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author egraether / http://egraether.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function Vector4( x, y, z, w ) {
+
+		this.x = x || 0;
+		this.y = y || 0;
+		this.z = z || 0;
+		this.w = ( w !== undefined ) ? w : 1;
+
+	}
+
+	Object.assign( Vector4.prototype, {
+
+		isVector4: true,
+
+		set: function ( x, y, z, w ) {
+
+			this.x = x;
+			this.y = y;
+			this.z = z;
+			this.w = w;
+
+			return this;
+
+		},
+
+		setScalar: function ( scalar ) {
+
+			this.x = scalar;
+			this.y = scalar;
+			this.z = scalar;
+			this.w = scalar;
+
+			return this;
+
+		},
+
+		setX: function ( x ) {
+
+			this.x = x;
+
+			return this;
+
+		},
+
+		setY: function ( y ) {
+
+			this.y = y;
+
+			return this;
+
+		},
+
+		setZ: function ( z ) {
+
+			this.z = z;
+
+			return this;
+
+		},
+
+		setW: function ( w ) {
+
+			this.w = w;
+
+			return this;
+
+		},
+
+		setComponent: function ( index, value ) {
+
+			switch ( index ) {
+
+				case 0: this.x = value; break;
+				case 1: this.y = value; break;
+				case 2: this.z = value; break;
+				case 3: this.w = value; break;
+				default: throw new Error( 'index is out of range: ' + index );
+
+			}
+
+			return this;
+
+		},
+
+		getComponent: function ( index ) {
+
+			switch ( index ) {
+
+				case 0: return this.x;
+				case 1: return this.y;
+				case 2: return this.z;
+				case 3: return this.w;
+				default: throw new Error( 'index is out of range: ' + index );
+
+			}
+
+		},
+
+		clone: function () {
+
+			return new this.constructor( this.x, this.y, this.z, this.w );
+
+		},
+
+		copy: function ( v ) {
+
+			this.x = v.x;
+			this.y = v.y;
+			this.z = v.z;
+			this.w = ( v.w !== undefined ) ? v.w : 1;
+
+			return this;
+
+		},
+
+		add: function ( v, w ) {
+
+			if ( w !== undefined ) {
+
+				console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
+				return this.addVectors( v, w );
+
+			}
+
+			this.x += v.x;
+			this.y += v.y;
+			this.z += v.z;
+			this.w += v.w;
+
+			return this;
+
+		},
+
+		addScalar: function ( s ) {
+
+			this.x += s;
+			this.y += s;
+			this.z += s;
+			this.w += s;
+
+			return this;
+
+		},
+
+		addVectors: function ( a, b ) {
+
+			this.x = a.x + b.x;
+			this.y = a.y + b.y;
+			this.z = a.z + b.z;
+			this.w = a.w + b.w;
+
+			return this;
+
+		},
+
+		addScaledVector: function ( v, s ) {
+
+			this.x += v.x * s;
+			this.y += v.y * s;
+			this.z += v.z * s;
+			this.w += v.w * s;
+
+			return this;
+
+		},
+
+		sub: function ( v, w ) {
+
+			if ( w !== undefined ) {
+
+				console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
+				return this.subVectors( v, w );
+
+			}
+
+			this.x -= v.x;
+			this.y -= v.y;
+			this.z -= v.z;
+			this.w -= v.w;
+
+			return this;
+
+		},
+
+		subScalar: function ( s ) {
+
+			this.x -= s;
+			this.y -= s;
+			this.z -= s;
+			this.w -= s;
+
+			return this;
+
+		},
+
+		subVectors: function ( a, b ) {
+
+			this.x = a.x - b.x;
+			this.y = a.y - b.y;
+			this.z = a.z - b.z;
+			this.w = a.w - b.w;
+
+			return this;
+
+		},
+
+		multiplyScalar: function ( scalar ) {
+
+			this.x *= scalar;
+			this.y *= scalar;
+			this.z *= scalar;
+			this.w *= scalar;
+
+			return this;
+
+		},
+
+		applyMatrix4: function ( m ) {
+
+			var x = this.x, y = this.y, z = this.z, w = this.w;
+			var e = m.elements;
+
+			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;
+			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;
+			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;
+			this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;
+
+			return this;
+
+		},
+
+		divideScalar: function ( scalar ) {
+
+			return this.multiplyScalar( 1 / scalar );
+
+		},
+
+		setAxisAngleFromQuaternion: function ( q ) {
+
+			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm
+
+			// q is assumed to be normalized
+
+			this.w = 2 * Math.acos( q.w );
+
+			var s = Math.sqrt( 1 - q.w * q.w );
+
+			if ( s < 0.0001 ) {
+
+				this.x = 1;
+				this.y = 0;
+				this.z = 0;
+
+			} else {
+
+				this.x = q.x / s;
+				this.y = q.y / s;
+				this.z = q.z / s;
+
+			}
+
+			return this;
+
+		},
+
+		setAxisAngleFromRotationMatrix: function ( m ) {
+
+			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm
+
+			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+
+			var angle, x, y, z,		// variables for result
+				epsilon = 0.01,		// margin to allow for rounding errors
+				epsilon2 = 0.1,		// margin to distinguish between 0 and 180 degrees
+
+				te = m.elements,
+
+				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
+				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
+				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];
+
+			if ( ( Math.abs( m12 - m21 ) < epsilon ) &&
+			     ( Math.abs( m13 - m31 ) < epsilon ) &&
+			     ( Math.abs( m23 - m32 ) < epsilon ) ) {
+
+				// singularity found
+				// first check for identity matrix which must have +1 for all terms
+				// in leading diagonal and zero in other terms
+
+				if ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&
+				     ( Math.abs( m13 + m31 ) < epsilon2 ) &&
+				     ( Math.abs( m23 + m32 ) < epsilon2 ) &&
+				     ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {
+
+					// this singularity is identity matrix so angle = 0
+
+					this.set( 1, 0, 0, 0 );
+
+					return this; // zero angle, arbitrary axis
+
+				}
+
+				// otherwise this singularity is angle = 180
+
+				angle = Math.PI;
+
+				var xx = ( m11 + 1 ) / 2;
+				var yy = ( m22 + 1 ) / 2;
+				var zz = ( m33 + 1 ) / 2;
+				var xy = ( m12 + m21 ) / 4;
+				var xz = ( m13 + m31 ) / 4;
+				var yz = ( m23 + m32 ) / 4;
+
+				if ( ( xx > yy ) && ( xx > zz ) ) {
+
+					// m11 is the largest diagonal term
+
+					if ( xx < epsilon ) {
+
+						x = 0;
+						y = 0.707106781;
+						z = 0.707106781;
+
+					} else {
+
+						x = Math.sqrt( xx );
+						y = xy / x;
+						z = xz / x;
+
+					}
+
+				} else if ( yy > zz ) {
+
+					// m22 is the largest diagonal term
+
+					if ( yy < epsilon ) {
+
+						x = 0.707106781;
+						y = 0;
+						z = 0.707106781;
+
+					} else {
+
+						y = Math.sqrt( yy );
+						x = xy / y;
+						z = yz / y;
+
+					}
+
+				} else {
+
+					// m33 is the largest diagonal term so base result on this
+
+					if ( zz < epsilon ) {
+
+						x = 0.707106781;
+						y = 0.707106781;
+						z = 0;
+
+					} else {
+
+						z = Math.sqrt( zz );
+						x = xz / z;
+						y = yz / z;
+
+					}
+
+				}
+
+				this.set( x, y, z, angle );
+
+				return this; // return 180 deg rotation
+
+			}
+
+			// as we have reached here there are no singularities so we can handle normally
+
+			var s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +
+			                   ( m13 - m31 ) * ( m13 - m31 ) +
+			                   ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize
+
+			if ( Math.abs( s ) < 0.001 ) s = 1;
+
+			// prevent divide by zero, should not happen if matrix is orthogonal and should be
+			// caught by singularity test above, but I've left it in just in case
+
+			this.x = ( m32 - m23 ) / s;
+			this.y = ( m13 - m31 ) / s;
+			this.z = ( m21 - m12 ) / s;
+			this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );
+
+			return this;
+
+		},
+
+		min: function ( v ) {
+
+			this.x = Math.min( this.x, v.x );
+			this.y = Math.min( this.y, v.y );
+			this.z = Math.min( this.z, v.z );
+			this.w = Math.min( this.w, v.w );
+
+			return this;
+
+		},
+
+		max: function ( v ) {
+
+			this.x = Math.max( this.x, v.x );
+			this.y = Math.max( this.y, v.y );
+			this.z = Math.max( this.z, v.z );
+			this.w = Math.max( this.w, v.w );
+
+			return this;
+
+		},
+
+		clamp: function ( min, max ) {
+
+			// assumes min < max, componentwise
+
+			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
+			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
+			this.z = Math.max( min.z, Math.min( max.z, this.z ) );
+			this.w = Math.max( min.w, Math.min( max.w, this.w ) );
+
+			return this;
+
+		},
+
+		clampScalar: function () {
+
+			var min, max;
+
+			return function clampScalar( minVal, maxVal ) {
+
+				if ( min === undefined ) {
+
+					min = new Vector4();
+					max = new Vector4();
+
+				}
+
+				min.set( minVal, minVal, minVal, minVal );
+				max.set( maxVal, maxVal, maxVal, maxVal );
+
+				return this.clamp( min, max );
+
+			};
+
+		}(),
+
+		clampLength: function ( min, max ) {
+
+			var length = this.length();
+
+			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
+
+		},
+
+		floor: function () {
+
+			this.x = Math.floor( this.x );
+			this.y = Math.floor( this.y );
+			this.z = Math.floor( this.z );
+			this.w = Math.floor( this.w );
+
+			return this;
+
+		},
+
+		ceil: function () {
+
+			this.x = Math.ceil( this.x );
+			this.y = Math.ceil( this.y );
+			this.z = Math.ceil( this.z );
+			this.w = Math.ceil( this.w );
+
+			return this;
+
+		},
+
+		round: function () {
+
+			this.x = Math.round( this.x );
+			this.y = Math.round( this.y );
+			this.z = Math.round( this.z );
+			this.w = Math.round( this.w );
+
+			return this;
+
+		},
+
+		roundToZero: function () {
+
+			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
+			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
+			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
+			this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );
+
+			return this;
+
+		},
+
+		negate: function () {
+
+			this.x = - this.x;
+			this.y = - this.y;
+			this.z = - this.z;
+			this.w = - this.w;
+
+			return this;
+
+		},
+
+		dot: function ( v ) {
+
+			return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;
+
+		},
+
+		lengthSq: function () {
+
+			return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;
+
+		},
+
+		length: function () {
+
+			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );
+
+		},
+
+		manhattanLength: function () {
+
+			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );
+
+		},
+
+		normalize: function () {
+
+			return this.divideScalar( this.length() || 1 );
+
+		},
+
+		setLength: function ( length ) {
+
+			return this.normalize().multiplyScalar( length );
+
+		},
+
+		lerp: function ( v, alpha ) {
+
+			this.x += ( v.x - this.x ) * alpha;
+			this.y += ( v.y - this.y ) * alpha;
+			this.z += ( v.z - this.z ) * alpha;
+			this.w += ( v.w - this.w ) * alpha;
+
+			return this;
+
+		},
+
+		lerpVectors: function ( v1, v2, alpha ) {
+
+			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
+
+		},
+
+		equals: function ( v ) {
+
+			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );
+
+		},
+
+		fromArray: function ( array, offset ) {
+
+			if ( offset === undefined ) offset = 0;
+
+			this.x = array[ offset ];
+			this.y = array[ offset + 1 ];
+			this.z = array[ offset + 2 ];
+			this.w = array[ offset + 3 ];
+
+			return this;
+
+		},
+
+		toArray: function ( array, offset ) {
+
+			if ( array === undefined ) array = [];
+			if ( offset === undefined ) offset = 0;
+
+			array[ offset ] = this.x;
+			array[ offset + 1 ] = this.y;
+			array[ offset + 2 ] = this.z;
+			array[ offset + 3 ] = this.w;
+
+			return array;
+
+		},
+
+		fromBufferAttribute: function ( attribute, index, offset ) {
+
+			if ( offset !== undefined ) {
+
+				console.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' );
+
+			}
+
+			this.x = attribute.getX( index );
+			this.y = attribute.getY( index );
+			this.z = attribute.getZ( index );
+			this.w = attribute.getW( index );
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author szimek / https://github.com/szimek/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author Marius Kintel / https://github.com/kintel
+	 */
+
+	/*
+	 In options, we can specify:
+	 * Texture parameters for an auto-generated target texture
+	 * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
+	*/
+	function WebGLRenderTarget( width, height, options ) {
+
+		this.width = width;
+		this.height = height;
+
+		this.scissor = new Vector4( 0, 0, width, height );
+		this.scissorTest = false;
+
+		this.viewport = new Vector4( 0, 0, width, height );
+
+		options = options || {};
+
+		this.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );
+
+		this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
+		this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;
+
+		this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
+		this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;
+		this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;
+
+	}
+
+	WebGLRenderTarget.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
+
+		constructor: WebGLRenderTarget,
+
+		isWebGLRenderTarget: true,
+
+		setSize: function ( width, height ) {
+
+			if ( this.width !== width || this.height !== height ) {
+
+				this.width = width;
+				this.height = height;
+
+				this.dispose();
+
+			}
+
+			this.viewport.set( 0, 0, width, height );
+			this.scissor.set( 0, 0, width, height );
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( source ) {
+
+			this.width = source.width;
+			this.height = source.height;
+
+			this.viewport.copy( source.viewport );
+
+			this.texture = source.texture.clone();
+
+			this.depthBuffer = source.depthBuffer;
+			this.stencilBuffer = source.stencilBuffer;
+			this.depthTexture = source.depthTexture;
+
+			return this;
+
+		},
+
+		dispose: function () {
+
+			this.dispatchEvent( { type: 'dispose' } );
+
+		}
+
+	} );
+
+	/**
+	 * @author Mugen87 / https://github.com/Mugen87
+	 * @author Matt DesLauriers / @mattdesl
+	 */
+
+	function WebGLMultisampleRenderTarget( width, height, options ) {
+
+		WebGLRenderTarget.call( this, width, height, options );
+
+		this.samples = 4;
+
+	}
+
+	WebGLMultisampleRenderTarget.prototype = Object.assign( Object.create( WebGLRenderTarget.prototype ), {
+
+		constructor: WebGLMultisampleRenderTarget,
+
+		isWebGLMultisampleRenderTarget: true,
+
+		copy: function ( source ) {
+
+			WebGLRenderTarget.prototype.copy.call( this, source );
+
+			this.samples = source.samples;
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com
+	 */
+
+	function WebGLRenderTargetCube( width, height, options ) {
+
+		WebGLRenderTarget.call( this, width, height, options );
+
+	}
+
+	WebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype );
+	WebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube;
+
+	WebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true;
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {
+
+		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
+
+		this.image = { data: data, width: width, height: height };
+
+		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
+		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
+
+		this.generateMipmaps = false;
+		this.flipY = false;
+		this.unpackAlignment = 1;
+
+	}
+
+	DataTexture.prototype = Object.create( Texture.prototype );
+	DataTexture.prototype.constructor = DataTexture;
+
+	DataTexture.prototype.isDataTexture = true;
+
+	/**
+	 * @author bhouston / http://clara.io
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function Box3( min, max ) {
+
+		this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );
+		this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );
+
+	}
+
+	Object.assign( Box3.prototype, {
+
+		isBox3: true,
+
+		set: function ( min, max ) {
+
+			this.min.copy( min );
+			this.max.copy( max );
+
+			return this;
+
+		},
+
+		setFromArray: function ( array ) {
+
+			var minX = + Infinity;
+			var minY = + Infinity;
+			var minZ = + Infinity;
+
+			var maxX = - Infinity;
+			var maxY = - Infinity;
+			var maxZ = - Infinity;
+
+			for ( var i = 0, l = array.length; i < l; i += 3 ) {
+
+				var x = array[ i ];
+				var y = array[ i + 1 ];
+				var z = array[ i + 2 ];
+
+				if ( x < minX ) minX = x;
+				if ( y < minY ) minY = y;
+				if ( z < minZ ) minZ = z;
+
+				if ( x > maxX ) maxX = x;
+				if ( y > maxY ) maxY = y;
+				if ( z > maxZ ) maxZ = z;
+
+			}
+
+			this.min.set( minX, minY, minZ );
+			this.max.set( maxX, maxY, maxZ );
+
+			return this;
+
+		},
+
+		setFromBufferAttribute: function ( attribute ) {
+
+			var minX = + Infinity;
+			var minY = + Infinity;
+			var minZ = + Infinity;
+
+			var maxX = - Infinity;
+			var maxY = - Infinity;
+			var maxZ = - Infinity;
+
+			for ( var i = 0, l = attribute.count; i < l; i ++ ) {
+
+				var x = attribute.getX( i );
+				var y = attribute.getY( i );
+				var z = attribute.getZ( i );
+
+				if ( x < minX ) minX = x;
+				if ( y < minY ) minY = y;
+				if ( z < minZ ) minZ = z;
+
+				if ( x > maxX ) maxX = x;
+				if ( y > maxY ) maxY = y;
+				if ( z > maxZ ) maxZ = z;
+
+			}
+
+			this.min.set( minX, minY, minZ );
+			this.max.set( maxX, maxY, maxZ );
+
+			return this;
+
+		},
+
+		setFromPoints: function ( points ) {
+
+			this.makeEmpty();
+
+			for ( var i = 0, il = points.length; i < il; i ++ ) {
+
+				this.expandByPoint( points[ i ] );
+
+			}
+
+			return this;
+
+		},
+
+		setFromCenterAndSize: function () {
+
+			var v1 = new Vector3();
+
+			return function setFromCenterAndSize( center, size ) {
+
+				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
+
+				this.min.copy( center ).sub( halfSize );
+				this.max.copy( center ).add( halfSize );
+
+				return this;
+
+			};
+
+		}(),
+
+		setFromObject: function ( object ) {
+
+			this.makeEmpty();
+
+			return this.expandByObject( object );
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( box ) {
+
+			this.min.copy( box.min );
+			this.max.copy( box.max );
+
+			return this;
+
+		},
+
+		makeEmpty: function () {
+
+			this.min.x = this.min.y = this.min.z = + Infinity;
+			this.max.x = this.max.y = this.max.z = - Infinity;
+
+			return this;
+
+		},
+
+		isEmpty: function () {
+
+			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
+
+			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );
+
+		},
+
+		getCenter: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Box3: .getCenter() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return this.isEmpty() ? target.set( 0, 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );
+
+		},
+
+		getSize: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Box3: .getSize() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return this.isEmpty() ? target.set( 0, 0, 0 ) : target.subVectors( this.max, this.min );
+
+		},
+
+		expandByPoint: function ( point ) {
+
+			this.min.min( point );
+			this.max.max( point );
+
+			return this;
+
+		},
+
+		expandByVector: function ( vector ) {
+
+			this.min.sub( vector );
+			this.max.add( vector );
+
+			return this;
+
+		},
+
+		expandByScalar: function ( scalar ) {
+
+			this.min.addScalar( - scalar );
+			this.max.addScalar( scalar );
+
+			return this;
+
+		},
+
+		expandByObject: function () {
+
+			// Computes the world-axis-aligned bounding box of an object (including its children),
+			// accounting for both the object's, and children's, world transforms
+
+			var scope, i, l;
+
+			var v1 = new Vector3();
+
+			function traverse( node ) {
+
+				var geometry = node.geometry;
+
+				if ( geometry !== undefined ) {
+
+					if ( geometry.isGeometry ) {
+
+						var vertices = geometry.vertices;
+
+						for ( i = 0, l = vertices.length; i < l; i ++ ) {
+
+							v1.copy( vertices[ i ] );
+							v1.applyMatrix4( node.matrixWorld );
+
+							scope.expandByPoint( v1 );
+
+						}
+
+					} else if ( geometry.isBufferGeometry ) {
+
+						var attribute = geometry.attributes.position;
+
+						if ( attribute !== undefined ) {
+
+							for ( i = 0, l = attribute.count; i < l; i ++ ) {
+
+								v1.fromBufferAttribute( attribute, i ).applyMatrix4( node.matrixWorld );
+
+								scope.expandByPoint( v1 );
+
+							}
+
+						}
+
+					}
+
+				}
+
+			}
+
+			return function expandByObject( object ) {
+
+				scope = this;
+
+				object.updateMatrixWorld( true );
+
+				object.traverse( traverse );
+
+				return this;
+
+			};
+
+		}(),
+
+		containsPoint: function ( point ) {
+
+			return point.x < this.min.x || point.x > this.max.x ||
+				point.y < this.min.y || point.y > this.max.y ||
+				point.z < this.min.z || point.z > this.max.z ? false : true;
+
+		},
+
+		containsBox: function ( box ) {
+
+			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
+				this.min.y <= box.min.y && box.max.y <= this.max.y &&
+				this.min.z <= box.min.z && box.max.z <= this.max.z;
+
+		},
+
+		getParameter: function ( point, target ) {
+
+			// This can potentially have a divide by zero if the box
+			// has a size dimension of 0.
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Box3: .getParameter() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return target.set(
+				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
+				( point.y - this.min.y ) / ( this.max.y - this.min.y ),
+				( point.z - this.min.z ) / ( this.max.z - this.min.z )
+			);
+
+		},
+
+		intersectsBox: function ( box ) {
+
+			// using 6 splitting planes to rule out intersections.
+			return box.max.x < this.min.x || box.min.x > this.max.x ||
+				box.max.y < this.min.y || box.min.y > this.max.y ||
+				box.max.z < this.min.z || box.min.z > this.max.z ? false : true;
+
+		},
+
+		intersectsSphere: ( function () {
+
+			var closestPoint = new Vector3();
+
+			return function intersectsSphere( sphere ) {
+
+				// Find the point on the AABB closest to the sphere center.
+				this.clampPoint( sphere.center, closestPoint );
+
+				// If that point is inside the sphere, the AABB and sphere intersect.
+				return closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );
+
+			};
+
+		} )(),
+
+		intersectsPlane: function ( plane ) {
+
+			// We compute the minimum and maximum dot product values. If those values
+			// are on the same side (back or front) of the plane, then there is no intersection.
+
+			var min, max;
+
+			if ( plane.normal.x > 0 ) {
+
+				min = plane.normal.x * this.min.x;
+				max = plane.normal.x * this.max.x;
+
+			} else {
+
+				min = plane.normal.x * this.max.x;
+				max = plane.normal.x * this.min.x;
+
+			}
+
+			if ( plane.normal.y > 0 ) {
+
+				min += plane.normal.y * this.min.y;
+				max += plane.normal.y * this.max.y;
+
+			} else {
+
+				min += plane.normal.y * this.max.y;
+				max += plane.normal.y * this.min.y;
+
+			}
+
+			if ( plane.normal.z > 0 ) {
+
+				min += plane.normal.z * this.min.z;
+				max += plane.normal.z * this.max.z;
+
+			} else {
+
+				min += plane.normal.z * this.max.z;
+				max += plane.normal.z * this.min.z;
+
+			}
+
+			return ( min <= - plane.constant && max >= - plane.constant );
+
+		},
+
+		intersectsTriangle: ( function () {
+
+			// triangle centered vertices
+			var v0 = new Vector3();
+			var v1 = new Vector3();
+			var v2 = new Vector3();
+
+			// triangle edge vectors
+			var f0 = new Vector3();
+			var f1 = new Vector3();
+			var f2 = new Vector3();
+
+			var testAxis = new Vector3();
+
+			var center = new Vector3();
+			var extents = new Vector3();
+
+			var triangleNormal = new Vector3();
+
+			function satForAxes( axes ) {
+
+				var i, j;
+
+				for ( i = 0, j = axes.length - 3; i <= j; i += 3 ) {
+
+					testAxis.fromArray( axes, i );
+					// project the aabb onto the seperating axis
+					var r = extents.x * Math.abs( testAxis.x ) + extents.y * Math.abs( testAxis.y ) + extents.z * Math.abs( testAxis.z );
+					// project all 3 vertices of the triangle onto the seperating axis
+					var p0 = v0.dot( testAxis );
+					var p1 = v1.dot( testAxis );
+					var p2 = v2.dot( testAxis );
+					// actual test, basically see if either of the most extreme of the triangle points intersects r
+					if ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) {
+
+						// points of the projected triangle are outside the projected half-length of the aabb
+						// the axis is seperating and we can exit
+						return false;
+
+					}
+
+				}
+
+				return true;
+
+			}
+
+			return function intersectsTriangle( triangle ) {
+
+				if ( this.isEmpty() ) {
+
+					return false;
+
+				}
+
+				// compute box center and extents
+				this.getCenter( center );
+				extents.subVectors( this.max, center );
+
+				// translate triangle to aabb origin
+				v0.subVectors( triangle.a, center );
+				v1.subVectors( triangle.b, center );
+				v2.subVectors( triangle.c, center );
+
+				// compute edge vectors for triangle
+				f0.subVectors( v1, v0 );
+				f1.subVectors( v2, v1 );
+				f2.subVectors( v0, v2 );
+
+				// test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
+				// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
+				// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)
+				var axes = [
+					0, - f0.z, f0.y, 0, - f1.z, f1.y, 0, - f2.z, f2.y,
+					f0.z, 0, - f0.x, f1.z, 0, - f1.x, f2.z, 0, - f2.x,
+					- f0.y, f0.x, 0, - f1.y, f1.x, 0, - f2.y, f2.x, 0
+				];
+				if ( ! satForAxes( axes ) ) {
+
+					return false;
+
+				}
+
+				// test 3 face normals from the aabb
+				axes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ];
+				if ( ! satForAxes( axes ) ) {
+
+					return false;
+
+				}
+
+				// finally testing the face normal of the triangle
+				// use already existing triangle edge vectors here
+				triangleNormal.crossVectors( f0, f1 );
+				axes = [ triangleNormal.x, triangleNormal.y, triangleNormal.z ];
+				return satForAxes( axes );
+
+			};
+
+		} )(),
+
+		clampPoint: function ( point, target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Box3: .clampPoint() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return target.copy( point ).clamp( this.min, this.max );
+
+		},
+
+		distanceToPoint: function () {
+
+			var v1 = new Vector3();
+
+			return function distanceToPoint( point ) {
+
+				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
+				return clampedPoint.sub( point ).length();
+
+			};
+
+		}(),
+
+		getBoundingSphere: function () {
+
+			var v1 = new Vector3();
+
+			return function getBoundingSphere( target ) {
+
+				if ( target === undefined ) {
+
+					console.error( 'THREE.Box3: .getBoundingSphere() target is now required' );
+					//target = new Sphere(); // removed to avoid cyclic dependency
+
+				}
+
+				this.getCenter( target.center );
+
+				target.radius = this.getSize( v1 ).length() * 0.5;
+
+				return target;
+
+			};
+
+		}(),
+
+		intersect: function ( box ) {
+
+			this.min.max( box.min );
+			this.max.min( box.max );
+
+			// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
+			if ( this.isEmpty() ) this.makeEmpty();
+
+			return this;
+
+		},
+
+		union: function ( box ) {
+
+			this.min.min( box.min );
+			this.max.max( box.max );
+
+			return this;
+
+		},
+
+		applyMatrix4: function () {
+
+			var points = [
+				new Vector3(),
+				new Vector3(),
+				new Vector3(),
+				new Vector3(),
+				new Vector3(),
+				new Vector3(),
+				new Vector3(),
+				new Vector3()
+			];
+
+			return function applyMatrix4( matrix ) {
+
+				// transform of empty box is an empty box.
+				if ( this.isEmpty() ) return this;
+
+				// NOTE: I am using a binary pattern to specify all 2^3 combinations below
+				points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000
+				points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001
+				points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010
+				points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011
+				points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100
+				points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101
+				points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110
+				points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 111
+
+				this.setFromPoints( points );
+
+				return this;
+
+			};
+
+		}(),
+
+		translate: function ( offset ) {
+
+			this.min.add( offset );
+			this.max.add( offset );
+
+			return this;
+
+		},
+
+		equals: function ( box ) {
+
+			return box.min.equals( this.min ) && box.max.equals( this.max );
+
+		}
+
+	} );
+
+	/**
+	 * @author bhouston / http://clara.io
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function Sphere( center, radius ) {
+
+		this.center = ( center !== undefined ) ? center : new Vector3();
+		this.radius = ( radius !== undefined ) ? radius : 0;
+
+	}
+
+	Object.assign( Sphere.prototype, {
+
+		set: function ( center, radius ) {
+
+			this.center.copy( center );
+			this.radius = radius;
+
+			return this;
+
+		},
+
+		setFromPoints: function () {
+
+			var box = new Box3();
+
+			return function setFromPoints( points, optionalCenter ) {
+
+				var center = this.center;
+
+				if ( optionalCenter !== undefined ) {
+
+					center.copy( optionalCenter );
+
+				} else {
+
+					box.setFromPoints( points ).getCenter( center );
+
+				}
+
+				var maxRadiusSq = 0;
+
+				for ( var i = 0, il = points.length; i < il; i ++ ) {
+
+					maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );
+
+				}
+
+				this.radius = Math.sqrt( maxRadiusSq );
+
+				return this;
+
+			};
+
+		}(),
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( sphere ) {
+
+			this.center.copy( sphere.center );
+			this.radius = sphere.radius;
+
+			return this;
+
+		},
+
+		empty: function () {
+
+			return ( this.radius <= 0 );
+
+		},
+
+		containsPoint: function ( point ) {
+
+			return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );
+
+		},
+
+		distanceToPoint: function ( point ) {
+
+			return ( point.distanceTo( this.center ) - this.radius );
+
+		},
+
+		intersectsSphere: function ( sphere ) {
+
+			var radiusSum = this.radius + sphere.radius;
+
+			return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );
+
+		},
+
+		intersectsBox: function ( box ) {
+
+			return box.intersectsSphere( this );
+
+		},
+
+		intersectsPlane: function ( plane ) {
+
+			return Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius;
+
+		},
+
+		clampPoint: function ( point, target ) {
+
+			var deltaLengthSq = this.center.distanceToSquared( point );
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Sphere: .clampPoint() target is now required' );
+				target = new Vector3();
+
+			}
+
+			target.copy( point );
+
+			if ( deltaLengthSq > ( this.radius * this.radius ) ) {
+
+				target.sub( this.center ).normalize();
+				target.multiplyScalar( this.radius ).add( this.center );
+
+			}
+
+			return target;
+
+		},
+
+		getBoundingBox: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Sphere: .getBoundingBox() target is now required' );
+				target = new Box3();
+
+			}
+
+			target.set( this.center, this.center );
+			target.expandByScalar( this.radius );
+
+			return target;
+
+		},
+
+		applyMatrix4: function ( matrix ) {
+
+			this.center.applyMatrix4( matrix );
+			this.radius = this.radius * matrix.getMaxScaleOnAxis();
+
+			return this;
+
+		},
+
+		translate: function ( offset ) {
+
+			this.center.add( offset );
+
+			return this;
+
+		},
+
+		equals: function ( sphere ) {
+
+			return sphere.center.equals( this.center ) && ( sphere.radius === this.radius );
+
+		}
+
+	} );
+
+	/**
+	 * @author bhouston / http://clara.io
+	 */
+
+	function Plane( normal, constant ) {
+
+		// normal is assumed to be normalized
+
+		this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );
+		this.constant = ( constant !== undefined ) ? constant : 0;
+
+	}
+
+	Object.assign( Plane.prototype, {
+
+		set: function ( normal, constant ) {
+
+			this.normal.copy( normal );
+			this.constant = constant;
+
+			return this;
+
+		},
+
+		setComponents: function ( x, y, z, w ) {
+
+			this.normal.set( x, y, z );
+			this.constant = w;
+
+			return this;
+
+		},
+
+		setFromNormalAndCoplanarPoint: function ( normal, point ) {
+
+			this.normal.copy( normal );
+			this.constant = - point.dot( this.normal );
+
+			return this;
+
+		},
+
+		setFromCoplanarPoints: function () {
+
+			var v1 = new Vector3();
+			var v2 = new Vector3();
+
+			return function setFromCoplanarPoints( a, b, c ) {
+
+				var normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();
+
+				// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?
+
+				this.setFromNormalAndCoplanarPoint( normal, a );
+
+				return this;
+
+			};
+
+		}(),
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( plane ) {
+
+			this.normal.copy( plane.normal );
+			this.constant = plane.constant;
+
+			return this;
+
+		},
+
+		normalize: function () {
+
+			// Note: will lead to a divide by zero if the plane is invalid.
+
+			var inverseNormalLength = 1.0 / this.normal.length();
+			this.normal.multiplyScalar( inverseNormalLength );
+			this.constant *= inverseNormalLength;
+
+			return this;
+
+		},
+
+		negate: function () {
+
+			this.constant *= - 1;
+			this.normal.negate();
+
+			return this;
+
+		},
+
+		distanceToPoint: function ( point ) {
+
+			return this.normal.dot( point ) + this.constant;
+
+		},
+
+		distanceToSphere: function ( sphere ) {
+
+			return this.distanceToPoint( sphere.center ) - sphere.radius;
+
+		},
+
+		projectPoint: function ( point, target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Plane: .projectPoint() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return target.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point );
+
+		},
+
+		intersectLine: function () {
+
+			var v1 = new Vector3();
+
+			return function intersectLine( line, target ) {
+
+				if ( target === undefined ) {
+
+					console.warn( 'THREE.Plane: .intersectLine() target is now required' );
+					target = new Vector3();
+
+				}
+
+				var direction = line.delta( v1 );
+
+				var denominator = this.normal.dot( direction );
+
+				if ( denominator === 0 ) {
+
+					// line is coplanar, return origin
+					if ( this.distanceToPoint( line.start ) === 0 ) {
+
+						return target.copy( line.start );
+
+					}
+
+					// Unsure if this is the correct method to handle this case.
+					return undefined;
+
+				}
+
+				var t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;
+
+				if ( t < 0 || t > 1 ) {
+
+					return undefined;
+
+				}
+
+				return target.copy( direction ).multiplyScalar( t ).add( line.start );
+
+			};
+
+		}(),
+
+		intersectsLine: function ( line ) {
+
+			// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.
+
+			var startSign = this.distanceToPoint( line.start );
+			var endSign = this.distanceToPoint( line.end );
+
+			return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );
+
+		},
+
+		intersectsBox: function ( box ) {
+
+			return box.intersectsPlane( this );
+
+		},
+
+		intersectsSphere: function ( sphere ) {
+
+			return sphere.intersectsPlane( this );
+
+		},
+
+		coplanarPoint: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Plane: .coplanarPoint() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return target.copy( this.normal ).multiplyScalar( - this.constant );
+
+		},
+
+		applyMatrix4: function () {
+
+			var v1 = new Vector3();
+			var m1 = new Matrix3();
+
+			return function applyMatrix4( matrix, optionalNormalMatrix ) {
+
+				var normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );
+
+				var referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix );
+
+				var normal = this.normal.applyMatrix3( normalMatrix ).normalize();
+
+				this.constant = - referencePoint.dot( normal );
+
+				return this;
+
+			};
+
+		}(),
+
+		translate: function ( offset ) {
+
+			this.constant -= offset.dot( this.normal );
+
+			return this;
+
+		},
+
+		equals: function ( plane ) {
+
+			return plane.normal.equals( this.normal ) && ( plane.constant === this.constant );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author bhouston / http://clara.io
+	 */
+
+	function Frustum( p0, p1, p2, p3, p4, p5 ) {
+
+		this.planes = [
+
+			( p0 !== undefined ) ? p0 : new Plane(),
+			( p1 !== undefined ) ? p1 : new Plane(),
+			( p2 !== undefined ) ? p2 : new Plane(),
+			( p3 !== undefined ) ? p3 : new Plane(),
+			( p4 !== undefined ) ? p4 : new Plane(),
+			( p5 !== undefined ) ? p5 : new Plane()
+
+		];
+
+	}
+
+	Object.assign( Frustum.prototype, {
+
+		set: function ( p0, p1, p2, p3, p4, p5 ) {
+
+			var planes = this.planes;
+
+			planes[ 0 ].copy( p0 );
+			planes[ 1 ].copy( p1 );
+			planes[ 2 ].copy( p2 );
+			planes[ 3 ].copy( p3 );
+			planes[ 4 ].copy( p4 );
+			planes[ 5 ].copy( p5 );
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( frustum ) {
+
+			var planes = this.planes;
+
+			for ( var i = 0; i < 6; i ++ ) {
+
+				planes[ i ].copy( frustum.planes[ i ] );
+
+			}
+
+			return this;
+
+		},
+
+		setFromMatrix: function ( m ) {
+
+			var planes = this.planes;
+			var me = m.elements;
+			var me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];
+			var me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];
+			var me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];
+			var me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];
+
+			planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();
+			planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();
+			planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();
+			planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();
+			planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();
+			planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();
+
+			return this;
+
+		},
+
+		intersectsObject: function () {
+
+			var sphere = new Sphere();
+
+			return function intersectsObject( object ) {
+
+				var geometry = object.geometry;
+
+				if ( geometry.boundingSphere === null )
+					geometry.computeBoundingSphere();
+
+				sphere.copy( geometry.boundingSphere )
+					.applyMatrix4( object.matrixWorld );
+
+				return this.intersectsSphere( sphere );
+
+			};
+
+		}(),
+
+		intersectsSprite: function () {
+
+			var sphere = new Sphere();
+
+			return function intersectsSprite( sprite ) {
+
+				sphere.center.set( 0, 0, 0 );
+				sphere.radius = 0.7071067811865476;
+				sphere.applyMatrix4( sprite.matrixWorld );
+
+				return this.intersectsSphere( sphere );
+
+			};
+
+		}(),
+
+		intersectsSphere: function ( sphere ) {
+
+			var planes = this.planes;
+			var center = sphere.center;
+			var negRadius = - sphere.radius;
+
+			for ( var i = 0; i < 6; i ++ ) {
+
+				var distance = planes[ i ].distanceToPoint( center );
+
+				if ( distance < negRadius ) {
+
+					return false;
+
+				}
+
+			}
+
+			return true;
+
+		},
+
+		intersectsBox: function () {
+
+			var p = new Vector3();
+
+			return function intersectsBox( box ) {
+
+				var planes = this.planes;
+
+				for ( var i = 0; i < 6; i ++ ) {
+
+					var plane = planes[ i ];
+
+					// corner at max distance
+
+					p.x = plane.normal.x > 0 ? box.max.x : box.min.x;
+					p.y = plane.normal.y > 0 ? box.max.y : box.min.y;
+					p.z = plane.normal.z > 0 ? box.max.z : box.min.z;
+
+					if ( plane.distanceToPoint( p ) < 0 ) {
+
+						return false;
+
+					}
+
+				}
+
+				return true;
+
+			};
+
+		}(),
+
+		containsPoint: function ( point ) {
+
+			var planes = this.planes;
+
+			for ( var i = 0; i < 6; i ++ ) {
+
+				if ( planes[ i ].distanceToPoint( point ) < 0 ) {
+
+					return false;
+
+				}
+
+			}
+
+			return true;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author supereggbert / http://www.paulbrunt.co.uk/
+	 * @author philogb / http://blog.thejit.org/
+	 * @author jordi_ros / http://plattsoft.com
+	 * @author D1plo1d / http://github.com/D1plo1d
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author timknip / http://www.floorplanner.com/
+	 * @author bhouston / http://clara.io
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function Matrix4() {
+
+		this.elements = [
+
+			1, 0, 0, 0,
+			0, 1, 0, 0,
+			0, 0, 1, 0,
+			0, 0, 0, 1
+
+		];
+
+		if ( arguments.length > 0 ) {
+
+			console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );
+
+		}
+
+	}
+
+	Object.assign( Matrix4.prototype, {
+
+		isMatrix4: true,
+
+		set: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {
+
+			var te = this.elements;
+
+			te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;
+			te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;
+			te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;
+			te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;
+
+			return this;
+
+		},
+
+		identity: function () {
+
+			this.set(
+
+				1, 0, 0, 0,
+				0, 1, 0, 0,
+				0, 0, 1, 0,
+				0, 0, 0, 1
+
+			);
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new Matrix4().fromArray( this.elements );
+
+		},
+
+		copy: function ( m ) {
+
+			var te = this.elements;
+			var me = m.elements;
+
+			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];
+			te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];
+			te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];
+			te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];
+
+			return this;
+
+		},
+
+		copyPosition: function ( m ) {
+
+			var te = this.elements, me = m.elements;
+
+			te[ 12 ] = me[ 12 ];
+			te[ 13 ] = me[ 13 ];
+			te[ 14 ] = me[ 14 ];
+
+			return this;
+
+		},
+
+		extractBasis: function ( xAxis, yAxis, zAxis ) {
+
+			xAxis.setFromMatrixColumn( this, 0 );
+			yAxis.setFromMatrixColumn( this, 1 );
+			zAxis.setFromMatrixColumn( this, 2 );
+
+			return this;
+
+		},
+
+		makeBasis: function ( xAxis, yAxis, zAxis ) {
+
+			this.set(
+				xAxis.x, yAxis.x, zAxis.x, 0,
+				xAxis.y, yAxis.y, zAxis.y, 0,
+				xAxis.z, yAxis.z, zAxis.z, 0,
+				0, 0, 0, 1
+			);
+
+			return this;
+
+		},
+
+		extractRotation: function () {
+
+			var v1 = new Vector3();
+
+			return function extractRotation( m ) {
+
+				// this method does not support reflection matrices
+
+				var te = this.elements;
+				var me = m.elements;
+
+				var scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();
+				var scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();
+				var scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();
+
+				te[ 0 ] = me[ 0 ] * scaleX;
+				te[ 1 ] = me[ 1 ] * scaleX;
+				te[ 2 ] = me[ 2 ] * scaleX;
+				te[ 3 ] = 0;
+
+				te[ 4 ] = me[ 4 ] * scaleY;
+				te[ 5 ] = me[ 5 ] * scaleY;
+				te[ 6 ] = me[ 6 ] * scaleY;
+				te[ 7 ] = 0;
+
+				te[ 8 ] = me[ 8 ] * scaleZ;
+				te[ 9 ] = me[ 9 ] * scaleZ;
+				te[ 10 ] = me[ 10 ] * scaleZ;
+				te[ 11 ] = 0;
+
+				te[ 12 ] = 0;
+				te[ 13 ] = 0;
+				te[ 14 ] = 0;
+				te[ 15 ] = 1;
+
+				return this;
+
+			};
+
+		}(),
+
+		makeRotationFromEuler: function ( euler ) {
+
+			if ( ! ( euler && euler.isEuler ) ) {
+
+				console.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );
+
+			}
+
+			var te = this.elements;
+
+			var x = euler.x, y = euler.y, z = euler.z;
+			var a = Math.cos( x ), b = Math.sin( x );
+			var c = Math.cos( y ), d = Math.sin( y );
+			var e = Math.cos( z ), f = Math.sin( z );
+
+			if ( euler.order === 'XYZ' ) {
+
+				var ae = a * e, af = a * f, be = b * e, bf = b * f;
+
+				te[ 0 ] = c * e;
+				te[ 4 ] = - c * f;
+				te[ 8 ] = d;
+
+				te[ 1 ] = af + be * d;
+				te[ 5 ] = ae - bf * d;
+				te[ 9 ] = - b * c;
+
+				te[ 2 ] = bf - ae * d;
+				te[ 6 ] = be + af * d;
+				te[ 10 ] = a * c;
+
+			} else if ( euler.order === 'YXZ' ) {
+
+				var ce = c * e, cf = c * f, de = d * e, df = d * f;
+
+				te[ 0 ] = ce + df * b;
+				te[ 4 ] = de * b - cf;
+				te[ 8 ] = a * d;
+
+				te[ 1 ] = a * f;
+				te[ 5 ] = a * e;
+				te[ 9 ] = - b;
+
+				te[ 2 ] = cf * b - de;
+				te[ 6 ] = df + ce * b;
+				te[ 10 ] = a * c;
+
+			} else if ( euler.order === 'ZXY' ) {
+
+				var ce = c * e, cf = c * f, de = d * e, df = d * f;
+
+				te[ 0 ] = ce - df * b;
+				te[ 4 ] = - a * f;
+				te[ 8 ] = de + cf * b;
+
+				te[ 1 ] = cf + de * b;
+				te[ 5 ] = a * e;
+				te[ 9 ] = df - ce * b;
+
+				te[ 2 ] = - a * d;
+				te[ 6 ] = b;
+				te[ 10 ] = a * c;
+
+			} else if ( euler.order === 'ZYX' ) {
+
+				var ae = a * e, af = a * f, be = b * e, bf = b * f;
+
+				te[ 0 ] = c * e;
+				te[ 4 ] = be * d - af;
+				te[ 8 ] = ae * d + bf;
+
+				te[ 1 ] = c * f;
+				te[ 5 ] = bf * d + ae;
+				te[ 9 ] = af * d - be;
+
+				te[ 2 ] = - d;
+				te[ 6 ] = b * c;
+				te[ 10 ] = a * c;
+
+			} else if ( euler.order === 'YZX' ) {
+
+				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;
+
+				te[ 0 ] = c * e;
+				te[ 4 ] = bd - ac * f;
+				te[ 8 ] = bc * f + ad;
+
+				te[ 1 ] = f;
+				te[ 5 ] = a * e;
+				te[ 9 ] = - b * e;
+
+				te[ 2 ] = - d * e;
+				te[ 6 ] = ad * f + bc;
+				te[ 10 ] = ac - bd * f;
+
+			} else if ( euler.order === 'XZY' ) {
+
+				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;
+
+				te[ 0 ] = c * e;
+				te[ 4 ] = - f;
+				te[ 8 ] = d * e;
+
+				te[ 1 ] = ac * f + bd;
+				te[ 5 ] = a * e;
+				te[ 9 ] = ad * f - bc;
+
+				te[ 2 ] = bc * f - ad;
+				te[ 6 ] = b * e;
+				te[ 10 ] = bd * f + ac;
+
+			}
+
+			// bottom row
+			te[ 3 ] = 0;
+			te[ 7 ] = 0;
+			te[ 11 ] = 0;
+
+			// last column
+			te[ 12 ] = 0;
+			te[ 13 ] = 0;
+			te[ 14 ] = 0;
+			te[ 15 ] = 1;
+
+			return this;
+
+		},
+
+		makeRotationFromQuaternion: function () {
+
+			var zero = new Vector3( 0, 0, 0 );
+			var one = new Vector3( 1, 1, 1 );
+
+			return function makeRotationFromQuaternion( q ) {
+
+				return this.compose( zero, q, one );
+
+			};
+
+		}(),
+
+		lookAt: function () {
+
+			var x = new Vector3();
+			var y = new Vector3();
+			var z = new Vector3();
+
+			return function lookAt( eye, target, up ) {
+
+				var te = this.elements;
+
+				z.subVectors( eye, target );
+
+				if ( z.lengthSq() === 0 ) {
+
+					// eye and target are in the same position
+
+					z.z = 1;
+
+				}
+
+				z.normalize();
+				x.crossVectors( up, z );
+
+				if ( x.lengthSq() === 0 ) {
+
+					// up and z are parallel
+
+					if ( Math.abs( up.z ) === 1 ) {
+
+						z.x += 0.0001;
+
+					} else {
+
+						z.z += 0.0001;
+
+					}
+
+					z.normalize();
+					x.crossVectors( up, z );
+
+				}
+
+				x.normalize();
+				y.crossVectors( z, x );
+
+				te[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;
+				te[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;
+				te[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;
+
+				return this;
+
+			};
+
+		}(),
+
+		multiply: function ( m, n ) {
+
+			if ( n !== undefined ) {
+
+				console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );
+				return this.multiplyMatrices( m, n );
+
+			}
+
+			return this.multiplyMatrices( this, m );
+
+		},
+
+		premultiply: function ( m ) {
+
+			return this.multiplyMatrices( m, this );
+
+		},
+
+		multiplyMatrices: function ( a, b ) {
+
+			var ae = a.elements;
+			var be = b.elements;
+			var te = this.elements;
+
+			var a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];
+			var a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];
+			var a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];
+			var a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];
+
+			var b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];
+			var b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];
+			var b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];
+			var b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];
+
+			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
+			te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
+			te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
+			te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;
+
+			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
+			te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
+			te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
+			te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;
+
+			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
+			te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
+			te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
+			te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;
+
+			te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
+			te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
+			te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
+			te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;
+
+			return this;
+
+		},
+
+		multiplyScalar: function ( s ) {
+
+			var te = this.elements;
+
+			te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;
+			te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;
+			te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;
+			te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;
+
+			return this;
+
+		},
+
+		applyToBufferAttribute: function () {
+
+			var v1 = new Vector3();
+
+			return function applyToBufferAttribute( attribute ) {
+
+				for ( var i = 0, l = attribute.count; i < l; i ++ ) {
+
+					v1.x = attribute.getX( i );
+					v1.y = attribute.getY( i );
+					v1.z = attribute.getZ( i );
+
+					v1.applyMatrix4( this );
+
+					attribute.setXYZ( i, v1.x, v1.y, v1.z );
+
+				}
+
+				return attribute;
+
+			};
+
+		}(),
+
+		determinant: function () {
+
+			var te = this.elements;
+
+			var n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];
+			var n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];
+			var n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];
+			var n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];
+
+			//TODO: make this more efficient
+			//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )
+
+			return (
+				n41 * (
+					+ n14 * n23 * n32
+					 - n13 * n24 * n32
+					 - n14 * n22 * n33
+					 + n12 * n24 * n33
+					 + n13 * n22 * n34
+					 - n12 * n23 * n34
+				) +
+				n42 * (
+					+ n11 * n23 * n34
+					 - n11 * n24 * n33
+					 + n14 * n21 * n33
+					 - n13 * n21 * n34
+					 + n13 * n24 * n31
+					 - n14 * n23 * n31
+				) +
+				n43 * (
+					+ n11 * n24 * n32
+					 - n11 * n22 * n34
+					 - n14 * n21 * n32
+					 + n12 * n21 * n34
+					 + n14 * n22 * n31
+					 - n12 * n24 * n31
+				) +
+				n44 * (
+					- n13 * n22 * n31
+					 - n11 * n23 * n32
+					 + n11 * n22 * n33
+					 + n13 * n21 * n32
+					 - n12 * n21 * n33
+					 + n12 * n23 * n31
+				)
+
+			);
+
+		},
+
+		transpose: function () {
+
+			var te = this.elements;
+			var tmp;
+
+			tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;
+			tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;
+			tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;
+
+			tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;
+			tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;
+			tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;
+
+			return this;
+
+		},
+
+		setPosition: function ( x, y, z ) {
+
+			var te = this.elements;
+
+			if ( x.isVector3 ) {
+
+				te[ 12 ] = x.x;
+				te[ 13 ] = x.y;
+				te[ 14 ] = x.z;
+
+			} else {
+
+				te[ 12 ] = x;
+				te[ 13 ] = y;
+				te[ 14 ] = z;
+
+			}
+
+			return this;
+
+		},
+
+		getInverse: function ( m, throwOnDegenerate ) {
+
+			// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
+			var te = this.elements,
+				me = m.elements,
+
+				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],
+				n12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],
+				n13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],
+				n14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],
+
+				t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
+				t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
+				t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
+				t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;
+
+			var det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;
+
+			if ( det === 0 ) {
+
+				var msg = "THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0";
+
+				if ( throwOnDegenerate === true ) {
+
+					throw new Error( msg );
+
+				} else {
+
+					console.warn( msg );
+
+				}
+
+				return this.identity();
+
+			}
+
+			var detInv = 1 / det;
+
+			te[ 0 ] = t11 * detInv;
+			te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;
+			te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;
+			te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;
+
+			te[ 4 ] = t12 * detInv;
+			te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;
+			te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;
+			te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;
+
+			te[ 8 ] = t13 * detInv;
+			te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;
+			te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;
+			te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;
+
+			te[ 12 ] = t14 * detInv;
+			te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;
+			te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;
+			te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;
+
+			return this;
+
+		},
+
+		scale: function ( v ) {
+
+			var te = this.elements;
+			var x = v.x, y = v.y, z = v.z;
+
+			te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;
+			te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;
+			te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;
+			te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;
+
+			return this;
+
+		},
+
+		getMaxScaleOnAxis: function () {
+
+			var te = this.elements;
+
+			var scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];
+			var scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];
+			var scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];
+
+			return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );
+
+		},
+
+		makeTranslation: function ( x, y, z ) {
+
+			this.set(
+
+				1, 0, 0, x,
+				0, 1, 0, y,
+				0, 0, 1, z,
+				0, 0, 0, 1
+
+			);
+
+			return this;
+
+		},
+
+		makeRotationX: function ( theta ) {
+
+			var c = Math.cos( theta ), s = Math.sin( theta );
+
+			this.set(
+
+				1, 0, 0, 0,
+				0, c, - s, 0,
+				0, s, c, 0,
+				0, 0, 0, 1
+
+			);
+
+			return this;
+
+		},
+
+		makeRotationY: function ( theta ) {
+
+			var c = Math.cos( theta ), s = Math.sin( theta );
+
+			this.set(
+
+				 c, 0, s, 0,
+				 0, 1, 0, 0,
+				- s, 0, c, 0,
+				 0, 0, 0, 1
+
+			);
+
+			return this;
+
+		},
+
+		makeRotationZ: function ( theta ) {
+
+			var c = Math.cos( theta ), s = Math.sin( theta );
+
+			this.set(
+
+				c, - s, 0, 0,
+				s, c, 0, 0,
+				0, 0, 1, 0,
+				0, 0, 0, 1
+
+			);
+
+			return this;
+
+		},
+
+		makeRotationAxis: function ( axis, angle ) {
+
+			// Based on http://www.gamedev.net/reference/articles/article1199.asp
+
+			var c = Math.cos( angle );
+			var s = Math.sin( angle );
+			var t = 1 - c;
+			var x = axis.x, y = axis.y, z = axis.z;
+			var tx = t * x, ty = t * y;
+
+			this.set(
+
+				tx * x + c, tx * y - s * z, tx * z + s * y, 0,
+				tx * y + s * z, ty * y + c, ty * z - s * x, 0,
+				tx * z - s * y, ty * z + s * x, t * z * z + c, 0,
+				0, 0, 0, 1
+
+			);
+
+			 return this;
+
+		},
+
+		makeScale: function ( x, y, z ) {
+
+			this.set(
+
+				x, 0, 0, 0,
+				0, y, 0, 0,
+				0, 0, z, 0,
+				0, 0, 0, 1
+
+			);
+
+			return this;
+
+		},
+
+		makeShear: function ( x, y, z ) {
+
+			this.set(
+
+				1, y, z, 0,
+				x, 1, z, 0,
+				x, y, 1, 0,
+				0, 0, 0, 1
+
+			);
+
+			return this;
+
+		},
+
+		compose: function ( position, quaternion, scale ) {
+
+			var te = this.elements;
+
+			var x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w;
+			var x2 = x + x,	y2 = y + y, z2 = z + z;
+			var xx = x * x2, xy = x * y2, xz = x * z2;
+			var yy = y * y2, yz = y * z2, zz = z * z2;
+			var wx = w * x2, wy = w * y2, wz = w * z2;
+
+			var sx = scale.x, sy = scale.y, sz = scale.z;
+
+			te[ 0 ] = ( 1 - ( yy + zz ) ) * sx;
+			te[ 1 ] = ( xy + wz ) * sx;
+			te[ 2 ] = ( xz - wy ) * sx;
+			te[ 3 ] = 0;
+
+			te[ 4 ] = ( xy - wz ) * sy;
+			te[ 5 ] = ( 1 - ( xx + zz ) ) * sy;
+			te[ 6 ] = ( yz + wx ) * sy;
+			te[ 7 ] = 0;
+
+			te[ 8 ] = ( xz + wy ) * sz;
+			te[ 9 ] = ( yz - wx ) * sz;
+			te[ 10 ] = ( 1 - ( xx + yy ) ) * sz;
+			te[ 11 ] = 0;
+
+			te[ 12 ] = position.x;
+			te[ 13 ] = position.y;
+			te[ 14 ] = position.z;
+			te[ 15 ] = 1;
+
+			return this;
+
+		},
+
+		decompose: function () {
+
+			var vector = new Vector3();
+			var matrix = new Matrix4();
+
+			return function decompose( position, quaternion, scale ) {
+
+				var te = this.elements;
+
+				var sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();
+				var sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();
+				var sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();
+
+				// if determine is negative, we need to invert one scale
+				var det = this.determinant();
+				if ( det < 0 ) sx = - sx;
+
+				position.x = te[ 12 ];
+				position.y = te[ 13 ];
+				position.z = te[ 14 ];
+
+				// scale the rotation part
+				matrix.copy( this );
+
+				var invSX = 1 / sx;
+				var invSY = 1 / sy;
+				var invSZ = 1 / sz;
+
+				matrix.elements[ 0 ] *= invSX;
+				matrix.elements[ 1 ] *= invSX;
+				matrix.elements[ 2 ] *= invSX;
+
+				matrix.elements[ 4 ] *= invSY;
+				matrix.elements[ 5 ] *= invSY;
+				matrix.elements[ 6 ] *= invSY;
+
+				matrix.elements[ 8 ] *= invSZ;
+				matrix.elements[ 9 ] *= invSZ;
+				matrix.elements[ 10 ] *= invSZ;
+
+				quaternion.setFromRotationMatrix( matrix );
+
+				scale.x = sx;
+				scale.y = sy;
+				scale.z = sz;
+
+				return this;
+
+			};
+
+		}(),
+
+		makePerspective: function ( left, right, top, bottom, near, far ) {
+
+			if ( far === undefined ) {
+
+				console.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' );
+
+			}
+
+			var te = this.elements;
+			var x = 2 * near / ( right - left );
+			var y = 2 * near / ( top - bottom );
+
+			var a = ( right + left ) / ( right - left );
+			var b = ( top + bottom ) / ( top - bottom );
+			var c = - ( far + near ) / ( far - near );
+			var d = - 2 * far * near / ( far - near );
+
+			te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;
+			te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;
+			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;
+			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;
+
+			return this;
+
+		},
+
+		makeOrthographic: function ( left, right, top, bottom, near, far ) {
+
+			var te = this.elements;
+			var w = 1.0 / ( right - left );
+			var h = 1.0 / ( top - bottom );
+			var p = 1.0 / ( far - near );
+
+			var x = ( right + left ) * w;
+			var y = ( top + bottom ) * h;
+			var z = ( far + near ) * p;
+
+			te[ 0 ] = 2 * w;	te[ 4 ] = 0;	te[ 8 ] = 0;	te[ 12 ] = - x;
+			te[ 1 ] = 0;	te[ 5 ] = 2 * h;	te[ 9 ] = 0;	te[ 13 ] = - y;
+			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 * p;	te[ 14 ] = - z;
+			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;	te[ 15 ] = 1;
+
+			return this;
+
+		},
+
+		equals: function ( matrix ) {
+
+			var te = this.elements;
+			var me = matrix.elements;
+
+			for ( var i = 0; i < 16; i ++ ) {
+
+				if ( te[ i ] !== me[ i ] ) return false;
+
+			}
+
+			return true;
+
+		},
+
+		fromArray: function ( array, offset ) {
+
+			if ( offset === undefined ) offset = 0;
+
+			for ( var i = 0; i < 16; i ++ ) {
+
+				this.elements[ i ] = array[ i + offset ];
+
+			}
+
+			return this;
+
+		},
+
+		toArray: function ( array, offset ) {
+
+			if ( array === undefined ) array = [];
+			if ( offset === undefined ) offset = 0;
+
+			var te = this.elements;
+
+			array[ offset ] = te[ 0 ];
+			array[ offset + 1 ] = te[ 1 ];
+			array[ offset + 2 ] = te[ 2 ];
+			array[ offset + 3 ] = te[ 3 ];
+
+			array[ offset + 4 ] = te[ 4 ];
+			array[ offset + 5 ] = te[ 5 ];
+			array[ offset + 6 ] = te[ 6 ];
+			array[ offset + 7 ] = te[ 7 ];
+
+			array[ offset + 8 ] = te[ 8 ];
+			array[ offset + 9 ] = te[ 9 ];
+			array[ offset + 10 ] = te[ 10 ];
+			array[ offset + 11 ] = te[ 11 ];
+
+			array[ offset + 12 ] = te[ 12 ];
+			array[ offset + 13 ] = te[ 13 ];
+			array[ offset + 14 ] = te[ 14 ];
+			array[ offset + 15 ] = te[ 15 ];
+
+			return array;
+
+		}
+
+	} );
+
+	var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif";
+
+	var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";
+
+	var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif";
+
+	var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif";
+
+	var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";
+
+	var begin_vertex = "vec3 transformed = vec3( position );";
+
+	var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif";
+
+	var bsdfs = "vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE  = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS  = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}";
+
+	var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tfDet *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif";
+
+	var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\tif ( clipped ) discard;\n\t#endif\n#endif";
+
+	var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\t#if ! defined( PHYSICAL ) && ! defined( PHONG ) && ! defined( MATCAP )\n\t\tvarying vec3 vViewPosition;\n\t#endif\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif";
+
+	var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG ) && ! defined( MATCAP )\n\tvarying vec3 vViewPosition;\n#endif";
+
+	var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG ) && ! defined( MATCAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif";
+
+	var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif";
+
+	var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";
+
+	var color_pars_vertex = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";
+
+	var color_vertex = "#ifdef USE_COLOR\n\tvColor.xyz = color.xyz;\n#endif";
+
+	var common = "#define PI 3.14159265359\n#define PI2 6.28318530718\n#define PI_HALF 1.5707963267949\n#define RECIPROCAL_PI 0.31830988618\n#define RECIPROCAL_PI2 0.15915494\n#define LOG2 1.442695\n#define EPSILON 1e-6\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}";
+
+	var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n#define cubeUV_textureSize (1024.0)\nint getFaceFromDirection(vec3 direction) {\n\tvec3 absDirection = abs(direction);\n\tint face = -1;\n\tif( absDirection.x > absDirection.z ) {\n\t\tif(absDirection.x > absDirection.y )\n\t\t\tface = direction.x > 0.0 ? 0 : 3;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\telse {\n\t\tif(absDirection.z > absDirection.y )\n\t\t\tface = direction.z > 0.0 ? 2 : 5;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\treturn face;\n}\n#define cubeUV_maxLods1  (log2(cubeUV_textureSize*0.25) - 1.0)\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\n\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\n\tfloat dxRoughness = dFdx(roughness);\n\tfloat dyRoughness = dFdy(roughness);\n\tvec3 dx = dFdx( vec * scale * dxRoughness );\n\tvec3 dy = dFdy( vec * scale * dyRoughness );\n\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\n\td = clamp(d, 1.0, cubeUV_rangeClamp);\n\tfloat mipLevel = 0.5 * log2(d);\n\treturn vec2(floor(mipLevel), fract(mipLevel));\n}\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\n\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\n\tfloat a = 16.0 * cubeUV_rcpTextureSize;\n\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\n\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\n\tfloat powScale = exp2_packed.x * exp2_packed.y;\n\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\n\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\n\tbool bRes = mipLevel == 0.0;\n\tscale =  bRes && (scale < a) ? a : scale;\n\tvec3 r;\n\tvec2 offset;\n\tint face = getFaceFromDirection(direction);\n\tfloat rcpPowScale = 1.0 / powScale;\n\tif( face == 0) {\n\t\tr = vec3(direction.x, -direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 1) {\n\t\tr = vec3(direction.y, direction.x, direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 2) {\n\t\tr = vec3(direction.z, direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 3) {\n\t\tr = vec3(direction.x, direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse if( face == 4) {\n\t\tr = vec3(direction.y, direction.x, -direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse {\n\t\tr = vec3(direction.z, -direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\tr = normalize(r);\n\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\n\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\n\tvec2 base = offset + vec2( texelOffset );\n\treturn base + s * ( scale - 2.0 * texelOffset );\n}\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\nvec4 textureCubeUV( sampler2D envMap, vec3 reflectedDirection, float roughness ) {\n\tfloat roughnessVal = roughness* cubeUV_maxLods3;\n\tfloat r1 = floor(roughnessVal);\n\tfloat r2 = r1 + 1.0;\n\tfloat t = fract(roughnessVal);\n\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\n\tfloat s = mipInfo.y;\n\tfloat level0 = mipInfo.x;\n\tfloat level1 = level0 + 1.0;\n\tlevel1 = level1 > 5.0 ? 5.0 : level1;\n\tlevel0 += min( floor( s + 0.5 ), 5.0 );\n\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\n\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\n\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\n\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\n\tvec4 result = mix(color10, color20, t);\n\treturn vec4(result.rgb, 1.0);\n}\n#endif";
+
+	var defaultnormal_vertex = "vec3 transformedNormal = normalMatrix * objectNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = normalMatrix * objectTangent;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif";
+
+	var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif";
+
+	var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\n#endif";
+
+	var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif";
+
+	var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif";
+
+	var encodings_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );";
+
+	var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = min( floor( D ) / 255.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value )  {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}";
+
+	var envmap_fragment = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\tvec2 sampleUV;\n\t\treflectVec = normalize( reflectVec );\n\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\tvec4 envColor = texture2D( envMap, sampleUV );\n\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\treflectVec = normalize( reflectVec );\n\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\n\t\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\tenvColor = envMapTexelToLinear( envColor );\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif";
+
+	var envmap_pars_fragment = "#if defined( USE_ENVMAP ) || defined( PHYSICAL )\n\tuniform float reflectivity;\n\tuniform float envMapIntensity;\n#endif\n#ifdef USE_ENVMAP\n\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\n\t\tvarying vec3 vWorldPosition;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif";
+
+	var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif";
+
+	var envmap_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif";
+
+	var fog_vertex = "#ifdef USE_FOG\n\tfogDepth = -mvPosition.z;\n#endif";
+
+	var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif";
+
+	var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif";
+
+	var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif";
+
+	var gradientmap_pars_fragment = "#ifdef TOON\n\tuniform sampler2D gradientMap;\n\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\t\tfloat dotNL = dot( normal, lightDirection );\n\t\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t\t#ifdef USE_GRADIENTMAP\n\t\t\treturn texture2D( gradientMap, coord ).rgb;\n\t\t#else\n\t\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t\t#endif\n\t}\n#endif";
+
+	var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n#endif";
+
+	var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";
+
+	var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n#endif";
+
+	var lights_pars_begin = "uniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t\tfloat shadowCameraNear;\n\t\tfloat shadowCameraFar;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight  ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif";
+
+	var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, queryVec, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent ));\n\t\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\t\tvec2 sampleUV;\n\t\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif";
+
+	var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;";
+
+	var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3\tdiffuseColor;\n\tvec3\tspecularColor;\n\tfloat\tspecularShininess;\n\tfloat\tspecularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifdef TOON\n\t\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#else\n\t\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\t\tvec3 irradiance = dotNL * directLight.color;\n\t#endif\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)";
+
+	var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\n#ifdef STANDARD\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.clearCoat = saturate( clearCoat );\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\n#endif";
+
+	var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3\tdiffuseColor;\n\tfloat\tspecularRoughness;\n\tvec3\tspecularColor;\n\t#ifndef STANDARD\n\t\tfloat clearCoat;\n\t\tfloat clearCoatRoughness;\n\t#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifndef STANDARD\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\n\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#ifndef STANDARD\n\t\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#endif\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifndef STANDARD\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\tfloat dotNL = dotNV;\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\tfloat clearCoatInv = 1.0 - clearCoatDHR;\n\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec3 singleScattering = vec3( 0.0 );\n\t\tvec3 multiScattering = vec3( 0.0 );\n\t\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\t\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\t\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\t\treflectedLight.indirectSpecular += clearCoatInv * radiance * singleScattering;\n\t\treflectedLight.indirectDiffuse += multiScattering * cosineWeightedIrradiance;\n\t\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n\t#else\n\t\treflectedLight.indirectSpecular += clearCoatInv * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\n\t#endif\n\t#ifndef STANDARD\n\t\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\n#define Material_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.specularRoughness )\n#define Material_ClearCoat_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}";
+
+	var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = normalize( vViewPosition );\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearCoatRadiance = vec3( 0.0 );\n#endif";
+
+	var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tirradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), maxMipLevel );\n\t#ifndef STANDARD\n\t\tclearCoatRadiance += getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), maxMipLevel );\n\t#endif\n#endif";
+
+	var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, irradiance, clearCoatRadiance, geometry, material, reflectedLight );\n#endif";
+
+	var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";
+
+	var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n#endif";
+
+	var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif";
+
+	var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t#else\n\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\tgl_Position.z *= gl_Position.w;\n\t#endif\n#endif";
+
+	var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif";
+
+	var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif";
+
+	var map_particle_fragment = "#ifdef USE_MAP\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif";
+
+	var map_particle_pars_fragment = "#ifdef USE_MAP\n\tuniform mat3 uvTransform;\n\tuniform sampler2D map;\n#endif";
+
+	var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif";
+
+	var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";
+
+	var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\n\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\n\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\n\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\n#endif";
+
+	var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\t#ifndef USE_MORPHNORMALS\n\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif";
+
+	var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\n\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\n\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\n\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\n\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\n\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\n\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\n\t#endif\n#endif";
+
+	var normal_fragment_begin = "#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t\tbitangent = bitangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t#endif\n\t#endif\n#endif";
+
+	var normal_fragment_maps = "#ifdef USE_NORMALMAP\n\t#ifdef OBJECTSPACE_NORMALMAP\n\t\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\t#ifdef FLIP_SIDED\n\t\t\tnormal = - normal;\n\t\t#endif\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t#endif\n\t\tnormal = normalize( normalMatrix * normal );\n\t#else\n\t\t#ifdef USE_TANGENT\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\t\tmapN.xy = normalScale * mapN.xy;\n\t\t\tnormal = normalize( vTBN * mapN );\n\t\t#else\n\t\t\tnormal = perturbNormal2Arb( -vViewPosition, normal );\n\t\t#endif\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif";
+
+	var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n\t#ifdef OBJECTSPACE_NORMALMAP\n\t\tuniform mat3 normalMatrix;\n\t#else\n\t\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\n\t\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\t\tvec2 st0 = dFdx( vUv.st );\n\t\t\tvec2 st1 = dFdy( vUv.st );\n\t\t\tfloat scale = sign( st1.t * st0.s - st0.t * st1.s );\n\t\t\tvec3 S = normalize( ( q0 * st1.t - q1 * st0.t ) * scale );\n\t\t\tvec3 T = normalize( ( - q0 * st1.s + q1 * st0.s ) * scale );\n\t\t\tvec3 N = normalize( surf_norm );\n\t\t\tmat3 tsn = mat3( S, T, N );\n\t\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\t\tmapN.xy *= normalScale;\n\t\t\tmapN.xy *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t\treturn normalize( tsn * mapN );\n\t\t}\n\t#endif\n#endif";
+
+	var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256.,  256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}";
+
+	var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif";
+
+	var project_vertex = "vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\ngl_Position = projectionMatrix * mvPosition;";
+
+	var dithering_fragment = "#if defined( DITHERING )\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif";
+
+	var dithering_pars_fragment = "#if defined( DITHERING )\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif";
+
+	var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif";
+
+	var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";
+
+	var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\n\t\tconst vec2 offset = vec2( 0.0, 1.0 );\n\t\tvec2 texelSize = vec2( 1.0 ) / size;\n\t\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\n\t\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\n\t\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\n\t\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\n\t\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\n\t\tvec2 f = fract( uv * size + 0.5 );\n\t\tfloat a = mix( lb, lt, f.y );\n\t\tfloat b = mix( rb, rt, f.y );\n\t\tfloat c = mix( a, b, f.x );\n\t\treturn c;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif";
+
+	var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n#endif";
+
+	var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n#endif";
+
+	var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tDirectionalLight directionalLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tSpotLight spotLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tPointLight pointLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#endif\n\t#endif\n\treturn shadow;\n}";
+
+	var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";
+
+	var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif";
+
+	var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif";
+
+	var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix  = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif";
+
+	var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";
+
+	var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";
+
+	var tonemapping_fragment = "#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif";
+
+	var tonemapping_pars_fragment = "#ifndef saturate\n\t#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nuniform float toneMappingWhitePoint;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\nvec3 Uncharted2ToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( ( color * ( 2.51 * color + 0.03 ) ) / ( color * ( 2.43 * color + 0.59 ) + 0.14 ) );\n}";
+
+	var uv_pars_fragment = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n#endif";
+
+	var uv_pars_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n\tuniform mat3 uvTransform;\n#endif";
+
+	var uv_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";
+
+	var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";
+
+	var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n#endif";
+
+	var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = uv2;\n#endif";
+
+	var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n#endif";
+
+	var background_frag = "uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
+
+	var background_vert = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}";
+
+	var cube_frag = "uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldDirection;\nvoid main() {\n\tvec4 texColor = textureCube( tCube, vec3( tFlip * vWorldDirection.x, vWorldDirection.yz ) );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
+
+	var cube_vert = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}";
+
+	var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - gl_FragCoord.z ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\n\t#endif\n}";
+
+	var depth_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n}";
+
+	var distanceRGBA_frag = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}";
+
+	var distanceRGBA_vert = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}";
+
+	var equirect_frag = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV;\n\tsampleUV.y = asin( clamp( direction.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
+
+	var equirect_vert = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}";
+
+	var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
+
+	var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\tvLineDistance = scale * lineDistance;\n\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
+
+	var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
+
+	var meshbasic_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}";
+
+	var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+
+	var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
+
+	var meshmatcap_frag = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
+
+	var meshmatcap_vert = "#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}";
+
+	var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+
+	var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
+
+	var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
+
+	var meshphysical_vert = "#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
+
+	var normal_frag = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\nvoid main() {\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}";
+
+	var normal_vert = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}";
+
+	var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
+
+	var points_vert = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = ( projectionMatrix[ 2 ][ 3 ] == - 1.0 );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}";
+
+	var shadow_frag = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <fog_fragment>\n}";
+
+	var shadow_vert = "#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
+
+	var sprite_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
+
+	var sprite_vert = "uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = ( projectionMatrix[ 2 ][ 3 ] == - 1.0 );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
+
+	var ShaderChunk = {
+		alphamap_fragment: alphamap_fragment,
+		alphamap_pars_fragment: alphamap_pars_fragment,
+		alphatest_fragment: alphatest_fragment,
+		aomap_fragment: aomap_fragment,
+		aomap_pars_fragment: aomap_pars_fragment,
+		begin_vertex: begin_vertex,
+		beginnormal_vertex: beginnormal_vertex,
+		bsdfs: bsdfs,
+		bumpmap_pars_fragment: bumpmap_pars_fragment,
+		clipping_planes_fragment: clipping_planes_fragment,
+		clipping_planes_pars_fragment: clipping_planes_pars_fragment,
+		clipping_planes_pars_vertex: clipping_planes_pars_vertex,
+		clipping_planes_vertex: clipping_planes_vertex,
+		color_fragment: color_fragment,
+		color_pars_fragment: color_pars_fragment,
+		color_pars_vertex: color_pars_vertex,
+		color_vertex: color_vertex,
+		common: common,
+		cube_uv_reflection_fragment: cube_uv_reflection_fragment,
+		defaultnormal_vertex: defaultnormal_vertex,
+		displacementmap_pars_vertex: displacementmap_pars_vertex,
+		displacementmap_vertex: displacementmap_vertex,
+		emissivemap_fragment: emissivemap_fragment,
+		emissivemap_pars_fragment: emissivemap_pars_fragment,
+		encodings_fragment: encodings_fragment,
+		encodings_pars_fragment: encodings_pars_fragment,
+		envmap_fragment: envmap_fragment,
+		envmap_pars_fragment: envmap_pars_fragment,
+		envmap_pars_vertex: envmap_pars_vertex,
+		envmap_physical_pars_fragment: envmap_physical_pars_fragment,
+		envmap_vertex: envmap_vertex,
+		fog_vertex: fog_vertex,
+		fog_pars_vertex: fog_pars_vertex,
+		fog_fragment: fog_fragment,
+		fog_pars_fragment: fog_pars_fragment,
+		gradientmap_pars_fragment: gradientmap_pars_fragment,
+		lightmap_fragment: lightmap_fragment,
+		lightmap_pars_fragment: lightmap_pars_fragment,
+		lights_lambert_vertex: lights_lambert_vertex,
+		lights_pars_begin: lights_pars_begin,
+		lights_phong_fragment: lights_phong_fragment,
+		lights_phong_pars_fragment: lights_phong_pars_fragment,
+		lights_physical_fragment: lights_physical_fragment,
+		lights_physical_pars_fragment: lights_physical_pars_fragment,
+		lights_fragment_begin: lights_fragment_begin,
+		lights_fragment_maps: lights_fragment_maps,
+		lights_fragment_end: lights_fragment_end,
+		logdepthbuf_fragment: logdepthbuf_fragment,
+		logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
+		logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
+		logdepthbuf_vertex: logdepthbuf_vertex,
+		map_fragment: map_fragment,
+		map_pars_fragment: map_pars_fragment,
+		map_particle_fragment: map_particle_fragment,
+		map_particle_pars_fragment: map_particle_pars_fragment,
+		metalnessmap_fragment: metalnessmap_fragment,
+		metalnessmap_pars_fragment: metalnessmap_pars_fragment,
+		morphnormal_vertex: morphnormal_vertex,
+		morphtarget_pars_vertex: morphtarget_pars_vertex,
+		morphtarget_vertex: morphtarget_vertex,
+		normal_fragment_begin: normal_fragment_begin,
+		normal_fragment_maps: normal_fragment_maps,
+		normalmap_pars_fragment: normalmap_pars_fragment,
+		packing: packing,
+		premultiplied_alpha_fragment: premultiplied_alpha_fragment,
+		project_vertex: project_vertex,
+		dithering_fragment: dithering_fragment,
+		dithering_pars_fragment: dithering_pars_fragment,
+		roughnessmap_fragment: roughnessmap_fragment,
+		roughnessmap_pars_fragment: roughnessmap_pars_fragment,
+		shadowmap_pars_fragment: shadowmap_pars_fragment,
+		shadowmap_pars_vertex: shadowmap_pars_vertex,
+		shadowmap_vertex: shadowmap_vertex,
+		shadowmask_pars_fragment: shadowmask_pars_fragment,
+		skinbase_vertex: skinbase_vertex,
+		skinning_pars_vertex: skinning_pars_vertex,
+		skinning_vertex: skinning_vertex,
+		skinnormal_vertex: skinnormal_vertex,
+		specularmap_fragment: specularmap_fragment,
+		specularmap_pars_fragment: specularmap_pars_fragment,
+		tonemapping_fragment: tonemapping_fragment,
+		tonemapping_pars_fragment: tonemapping_pars_fragment,
+		uv_pars_fragment: uv_pars_fragment,
+		uv_pars_vertex: uv_pars_vertex,
+		uv_vertex: uv_vertex,
+		uv2_pars_fragment: uv2_pars_fragment,
+		uv2_pars_vertex: uv2_pars_vertex,
+		uv2_vertex: uv2_vertex,
+		worldpos_vertex: worldpos_vertex,
+
+		background_frag: background_frag,
+		background_vert: background_vert,
+		cube_frag: cube_frag,
+		cube_vert: cube_vert,
+		depth_frag: depth_frag,
+		depth_vert: depth_vert,
+		distanceRGBA_frag: distanceRGBA_frag,
+		distanceRGBA_vert: distanceRGBA_vert,
+		equirect_frag: equirect_frag,
+		equirect_vert: equirect_vert,
+		linedashed_frag: linedashed_frag,
+		linedashed_vert: linedashed_vert,
+		meshbasic_frag: meshbasic_frag,
+		meshbasic_vert: meshbasic_vert,
+		meshlambert_frag: meshlambert_frag,
+		meshlambert_vert: meshlambert_vert,
+		meshmatcap_frag: meshmatcap_frag,
+		meshmatcap_vert: meshmatcap_vert,
+		meshphong_frag: meshphong_frag,
+		meshphong_vert: meshphong_vert,
+		meshphysical_frag: meshphysical_frag,
+		meshphysical_vert: meshphysical_vert,
+		normal_frag: normal_frag,
+		normal_vert: normal_vert,
+		points_frag: points_frag,
+		points_vert: points_vert,
+		shadow_frag: shadow_frag,
+		shadow_vert: shadow_vert,
+		sprite_frag: sprite_frag,
+		sprite_vert: sprite_vert
+	};
+
+	/**
+	 * Uniform Utilities
+	 */
+
+	function cloneUniforms( src ) {
+
+		var dst = {};
+
+		for ( var u in src ) {
+
+			dst[ u ] = {};
+
+			for ( var p in src[ u ] ) {
+
+				var property = src[ u ][ p ];
+
+				if ( property && ( property.isColor ||
+					property.isMatrix3 || property.isMatrix4 ||
+					property.isVector2 || property.isVector3 || property.isVector4 ||
+					property.isTexture ) ) {
+
+					dst[ u ][ p ] = property.clone();
+
+				} else if ( Array.isArray( property ) ) {
+
+					dst[ u ][ p ] = property.slice();
+
+				} else {
+
+					dst[ u ][ p ] = property;
+
+				}
+
+			}
+
+		}
+
+		return dst;
+
+	}
+
+	function mergeUniforms( uniforms ) {
+
+		var merged = {};
+
+		for ( var u = 0; u < uniforms.length; u ++ ) {
+
+			var tmp = cloneUniforms( uniforms[ u ] );
+
+			for ( var p in tmp ) {
+
+				merged[ p ] = tmp[ p ];
+
+			}
+
+		}
+
+		return merged;
+
+	}
+
+	// Legacy
+
+	var UniformsUtils = { clone: cloneUniforms, merge: mergeUniforms };
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	var ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,
+		'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,
+		'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,
+		'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,
+		'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,
+		'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,
+		'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,
+		'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,
+		'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,
+		'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,
+		'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,
+		'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,
+		'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,
+		'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,
+		'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,
+		'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,
+		'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,
+		'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,
+		'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,
+		'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,
+		'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,
+		'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,
+		'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,
+		'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };
+
+	function Color( r, g, b ) {
+
+		if ( g === undefined && b === undefined ) {
+
+			// r is THREE.Color, hex or string
+			return this.set( r );
+
+		}
+
+		return this.setRGB( r, g, b );
+
+	}
+
+	Object.assign( Color.prototype, {
+
+		isColor: true,
+
+		r: 1, g: 1, b: 1,
+
+		set: function ( value ) {
+
+			if ( value && value.isColor ) {
+
+				this.copy( value );
+
+			} else if ( typeof value === 'number' ) {
+
+				this.setHex( value );
+
+			} else if ( typeof value === 'string' ) {
+
+				this.setStyle( value );
+
+			}
+
+			return this;
+
+		},
+
+		setScalar: function ( scalar ) {
+
+			this.r = scalar;
+			this.g = scalar;
+			this.b = scalar;
+
+			return this;
+
+		},
+
+		setHex: function ( hex ) {
+
+			hex = Math.floor( hex );
+
+			this.r = ( hex >> 16 & 255 ) / 255;
+			this.g = ( hex >> 8 & 255 ) / 255;
+			this.b = ( hex & 255 ) / 255;
+
+			return this;
+
+		},
+
+		setRGB: function ( r, g, b ) {
+
+			this.r = r;
+			this.g = g;
+			this.b = b;
+
+			return this;
+
+		},
+
+		setHSL: function () {
+
+			function hue2rgb( p, q, t ) {
+
+				if ( t < 0 ) t += 1;
+				if ( t > 1 ) t -= 1;
+				if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;
+				if ( t < 1 / 2 ) return q;
+				if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );
+				return p;
+
+			}
+
+			return function setHSL( h, s, l ) {
+
+				// h,s,l ranges are in 0.0 - 1.0
+				h = _Math.euclideanModulo( h, 1 );
+				s = _Math.clamp( s, 0, 1 );
+				l = _Math.clamp( l, 0, 1 );
+
+				if ( s === 0 ) {
+
+					this.r = this.g = this.b = l;
+
+				} else {
+
+					var p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );
+					var q = ( 2 * l ) - p;
+
+					this.r = hue2rgb( q, p, h + 1 / 3 );
+					this.g = hue2rgb( q, p, h );
+					this.b = hue2rgb( q, p, h - 1 / 3 );
+
+				}
+
+				return this;
+
+			};
+
+		}(),
+
+		setStyle: function ( style ) {
+
+			function handleAlpha( string ) {
+
+				if ( string === undefined ) return;
+
+				if ( parseFloat( string ) < 1 ) {
+
+					console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );
+
+				}
+
+			}
+
+
+			var m;
+
+			if ( m = /^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec( style ) ) {
+
+				// rgb / hsl
+
+				var color;
+				var name = m[ 1 ];
+				var components = m[ 2 ];
+
+				switch ( name ) {
+
+					case 'rgb':
+					case 'rgba':
+
+						if ( color = /^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
+
+							// rgb(255,0,0) rgba(255,0,0,0.5)
+							this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;
+							this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;
+							this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;
+
+							handleAlpha( color[ 5 ] );
+
+							return this;
+
+						}
+
+						if ( color = /^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
+
+							// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
+							this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;
+							this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;
+							this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;
+
+							handleAlpha( color[ 5 ] );
+
+							return this;
+
+						}
+
+						break;
+
+					case 'hsl':
+					case 'hsla':
+
+						if ( color = /^([0-9]*\.?[0-9]+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
+
+							// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
+							var h = parseFloat( color[ 1 ] ) / 360;
+							var s = parseInt( color[ 2 ], 10 ) / 100;
+							var l = parseInt( color[ 3 ], 10 ) / 100;
+
+							handleAlpha( color[ 5 ] );
+
+							return this.setHSL( h, s, l );
+
+						}
+
+						break;
+
+				}
+
+			} else if ( m = /^\#([A-Fa-f0-9]+)$/.exec( style ) ) {
+
+				// hex color
+
+				var hex = m[ 1 ];
+				var size = hex.length;
+
+				if ( size === 3 ) {
+
+					// #ff0
+					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;
+					this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;
+					this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;
+
+					return this;
+
+				} else if ( size === 6 ) {
+
+					// #ff0000
+					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;
+					this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;
+					this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;
+
+					return this;
+
+				}
+
+			}
+
+			if ( style && style.length > 0 ) {
+
+				// color keywords
+				var hex = ColorKeywords[ style ];
+
+				if ( hex !== undefined ) {
+
+					// red
+					this.setHex( hex );
+
+				} else {
+
+					// unknown color
+					console.warn( 'THREE.Color: Unknown color ' + style );
+
+				}
+
+			}
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor( this.r, this.g, this.b );
+
+		},
+
+		copy: function ( color ) {
+
+			this.r = color.r;
+			this.g = color.g;
+			this.b = color.b;
+
+			return this;
+
+		},
+
+		copyGammaToLinear: function ( color, gammaFactor ) {
+
+			if ( gammaFactor === undefined ) gammaFactor = 2.0;
+
+			this.r = Math.pow( color.r, gammaFactor );
+			this.g = Math.pow( color.g, gammaFactor );
+			this.b = Math.pow( color.b, gammaFactor );
+
+			return this;
+
+		},
+
+		copyLinearToGamma: function ( color, gammaFactor ) {
+
+			if ( gammaFactor === undefined ) gammaFactor = 2.0;
+
+			var safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;
+
+			this.r = Math.pow( color.r, safeInverse );
+			this.g = Math.pow( color.g, safeInverse );
+			this.b = Math.pow( color.b, safeInverse );
+
+			return this;
+
+		},
+
+		convertGammaToLinear: function ( gammaFactor ) {
+
+			this.copyGammaToLinear( this, gammaFactor );
+
+			return this;
+
+		},
+
+		convertLinearToGamma: function ( gammaFactor ) {
+
+			this.copyLinearToGamma( this, gammaFactor );
+
+			return this;
+
+		},
+
+		copySRGBToLinear: function () {
+
+			function SRGBToLinear( c ) {
+
+				return ( c < 0.04045 ) ? c * 0.0773993808 : Math.pow( c * 0.9478672986 + 0.0521327014, 2.4 );
+
+			}
+
+			return function copySRGBToLinear( color ) {
+
+				this.r = SRGBToLinear( color.r );
+				this.g = SRGBToLinear( color.g );
+				this.b = SRGBToLinear( color.b );
+
+				return this;
+
+			};
+
+		}(),
+
+		copyLinearToSRGB: function () {
+
+			function LinearToSRGB( c ) {
+
+				return ( c < 0.0031308 ) ? c * 12.92 : 1.055 * ( Math.pow( c, 0.41666 ) ) - 0.055;
+
+			}
+
+			return function copyLinearToSRGB( color ) {
+
+				this.r = LinearToSRGB( color.r );
+				this.g = LinearToSRGB( color.g );
+				this.b = LinearToSRGB( color.b );
+
+				return this;
+
+			};
+
+		}(),
+
+		convertSRGBToLinear: function () {
+
+			this.copySRGBToLinear( this );
+
+			return this;
+
+		},
+
+		convertLinearToSRGB: function () {
+
+			this.copyLinearToSRGB( this );
+
+			return this;
+
+		},
+
+		getHex: function () {
+
+			return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;
+
+		},
+
+		getHexString: function () {
+
+			return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );
+
+		},
+
+		getHSL: function ( target ) {
+
+			// h,s,l ranges are in 0.0 - 1.0
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Color: .getHSL() target is now required' );
+				target = { h: 0, s: 0, l: 0 };
+
+			}
+
+			var r = this.r, g = this.g, b = this.b;
+
+			var max = Math.max( r, g, b );
+			var min = Math.min( r, g, b );
+
+			var hue, saturation;
+			var lightness = ( min + max ) / 2.0;
+
+			if ( min === max ) {
+
+				hue = 0;
+				saturation = 0;
+
+			} else {
+
+				var delta = max - min;
+
+				saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );
+
+				switch ( max ) {
+
+					case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;
+					case g: hue = ( b - r ) / delta + 2; break;
+					case b: hue = ( r - g ) / delta + 4; break;
+
+				}
+
+				hue /= 6;
+
+			}
+
+			target.h = hue;
+			target.s = saturation;
+			target.l = lightness;
+
+			return target;
+
+		},
+
+		getStyle: function () {
+
+			return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';
+
+		},
+
+		offsetHSL: function () {
+
+			var hsl = {};
+
+			return function ( h, s, l ) {
+
+				this.getHSL( hsl );
+
+				hsl.h += h; hsl.s += s; hsl.l += l;
+
+				this.setHSL( hsl.h, hsl.s, hsl.l );
+
+				return this;
+
+			};
+
+		}(),
+
+		add: function ( color ) {
+
+			this.r += color.r;
+			this.g += color.g;
+			this.b += color.b;
+
+			return this;
+
+		},
+
+		addColors: function ( color1, color2 ) {
+
+			this.r = color1.r + color2.r;
+			this.g = color1.g + color2.g;
+			this.b = color1.b + color2.b;
+
+			return this;
+
+		},
+
+		addScalar: function ( s ) {
+
+			this.r += s;
+			this.g += s;
+			this.b += s;
+
+			return this;
+
+		},
+
+		sub: function ( color ) {
+
+			this.r = Math.max( 0, this.r - color.r );
+			this.g = Math.max( 0, this.g - color.g );
+			this.b = Math.max( 0, this.b - color.b );
+
+			return this;
+
+		},
+
+		multiply: function ( color ) {
+
+			this.r *= color.r;
+			this.g *= color.g;
+			this.b *= color.b;
+
+			return this;
+
+		},
+
+		multiplyScalar: function ( s ) {
+
+			this.r *= s;
+			this.g *= s;
+			this.b *= s;
+
+			return this;
+
+		},
+
+		lerp: function ( color, alpha ) {
+
+			this.r += ( color.r - this.r ) * alpha;
+			this.g += ( color.g - this.g ) * alpha;
+			this.b += ( color.b - this.b ) * alpha;
+
+			return this;
+
+		},
+
+		lerpHSL: function () {
+
+			var hslA = { h: 0, s: 0, l: 0 };
+			var hslB = { h: 0, s: 0, l: 0 };
+
+			return function lerpHSL( color, alpha ) {
+
+				this.getHSL( hslA );
+				color.getHSL( hslB );
+
+				var h = _Math.lerp( hslA.h, hslB.h, alpha );
+				var s = _Math.lerp( hslA.s, hslB.s, alpha );
+				var l = _Math.lerp( hslA.l, hslB.l, alpha );
+
+				this.setHSL( h, s, l );
+
+				return this;
+
+			};
+
+		}(),
+
+		equals: function ( c ) {
+
+			return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );
+
+		},
+
+		fromArray: function ( array, offset ) {
+
+			if ( offset === undefined ) offset = 0;
+
+			this.r = array[ offset ];
+			this.g = array[ offset + 1 ];
+			this.b = array[ offset + 2 ];
+
+			return this;
+
+		},
+
+		toArray: function ( array, offset ) {
+
+			if ( array === undefined ) array = [];
+			if ( offset === undefined ) offset = 0;
+
+			array[ offset ] = this.r;
+			array[ offset + 1 ] = this.g;
+			array[ offset + 2 ] = this.b;
+
+			return array;
+
+		},
+
+		toJSON: function () {
+
+			return this.getHex();
+
+		}
+
+	} );
+
+	/**
+	 * Uniforms library for shared webgl shaders
+	 */
+
+	var UniformsLib = {
+
+		common: {
+
+			diffuse: { value: new Color( 0xeeeeee ) },
+			opacity: { value: 1.0 },
+
+			map: { value: null },
+			uvTransform: { value: new Matrix3() },
+
+			alphaMap: { value: null },
+
+		},
+
+		specularmap: {
+
+			specularMap: { value: null },
+
+		},
+
+		envmap: {
+
+			envMap: { value: null },
+			flipEnvMap: { value: - 1 },
+			reflectivity: { value: 1.0 },
+			refractionRatio: { value: 0.98 },
+			maxMipLevel: { value: 0 }
+
+		},
+
+		aomap: {
+
+			aoMap: { value: null },
+			aoMapIntensity: { value: 1 }
+
+		},
+
+		lightmap: {
+
+			lightMap: { value: null },
+			lightMapIntensity: { value: 1 }
+
+		},
+
+		emissivemap: {
+
+			emissiveMap: { value: null }
+
+		},
+
+		bumpmap: {
+
+			bumpMap: { value: null },
+			bumpScale: { value: 1 }
+
+		},
+
+		normalmap: {
+
+			normalMap: { value: null },
+			normalScale: { value: new Vector2( 1, 1 ) }
+
+		},
+
+		displacementmap: {
+
+			displacementMap: { value: null },
+			displacementScale: { value: 1 },
+			displacementBias: { value: 0 }
+
+		},
+
+		roughnessmap: {
+
+			roughnessMap: { value: null }
+
+		},
+
+		metalnessmap: {
+
+			metalnessMap: { value: null }
+
+		},
+
+		gradientmap: {
+
+			gradientMap: { value: null }
+
+		},
+
+		fog: {
+
+			fogDensity: { value: 0.00025 },
+			fogNear: { value: 1 },
+			fogFar: { value: 2000 },
+			fogColor: { value: new Color( 0xffffff ) }
+
+		},
+
+		lights: {
+
+			ambientLightColor: { value: [] },
+
+			lightProbe: { value: [] },
+
+			directionalLights: { value: [], properties: {
+				direction: {},
+				color: {},
+
+				shadow: {},
+				shadowBias: {},
+				shadowRadius: {},
+				shadowMapSize: {}
+			} },
+
+			directionalShadowMap: { value: [] },
+			directionalShadowMatrix: { value: [] },
+
+			spotLights: { value: [], properties: {
+				color: {},
+				position: {},
+				direction: {},
+				distance: {},
+				coneCos: {},
+				penumbraCos: {},
+				decay: {},
+
+				shadow: {},
+				shadowBias: {},
+				shadowRadius: {},
+				shadowMapSize: {}
+			} },
+
+			spotShadowMap: { value: [] },
+			spotShadowMatrix: { value: [] },
+
+			pointLights: { value: [], properties: {
+				color: {},
+				position: {},
+				decay: {},
+				distance: {},
+
+				shadow: {},
+				shadowBias: {},
+				shadowRadius: {},
+				shadowMapSize: {},
+				shadowCameraNear: {},
+				shadowCameraFar: {}
+			} },
+
+			pointShadowMap: { value: [] },
+			pointShadowMatrix: { value: [] },
+
+			hemisphereLights: { value: [], properties: {
+				direction: {},
+				skyColor: {},
+				groundColor: {}
+			} },
+
+			// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
+			rectAreaLights: { value: [], properties: {
+				color: {},
+				position: {},
+				width: {},
+				height: {}
+			} }
+
+		},
+
+		points: {
+
+			diffuse: { value: new Color( 0xeeeeee ) },
+			opacity: { value: 1.0 },
+			size: { value: 1.0 },
+			scale: { value: 1.0 },
+			map: { value: null },
+			uvTransform: { value: new Matrix3() }
+
+		},
+
+		sprite: {
+
+			diffuse: { value: new Color( 0xeeeeee ) },
+			opacity: { value: 1.0 },
+			center: { value: new Vector2( 0.5, 0.5 ) },
+			rotation: { value: 0.0 },
+			map: { value: null },
+			uvTransform: { value: new Matrix3() }
+
+		}
+
+	};
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author mikael emtinger / http://gomo.se/
+	 */
+
+	var ShaderLib = {
+
+		basic: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.common,
+				UniformsLib.specularmap,
+				UniformsLib.envmap,
+				UniformsLib.aomap,
+				UniformsLib.lightmap,
+				UniformsLib.fog
+			] ),
+
+			vertexShader: ShaderChunk.meshbasic_vert,
+			fragmentShader: ShaderChunk.meshbasic_frag
+
+		},
+
+		lambert: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.common,
+				UniformsLib.specularmap,
+				UniformsLib.envmap,
+				UniformsLib.aomap,
+				UniformsLib.lightmap,
+				UniformsLib.emissivemap,
+				UniformsLib.fog,
+				UniformsLib.lights,
+				{
+					emissive: { value: new Color( 0x000000 ) }
+				}
+			] ),
+
+			vertexShader: ShaderChunk.meshlambert_vert,
+			fragmentShader: ShaderChunk.meshlambert_frag
+
+		},
+
+		phong: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.common,
+				UniformsLib.specularmap,
+				UniformsLib.envmap,
+				UniformsLib.aomap,
+				UniformsLib.lightmap,
+				UniformsLib.emissivemap,
+				UniformsLib.bumpmap,
+				UniformsLib.normalmap,
+				UniformsLib.displacementmap,
+				UniformsLib.gradientmap,
+				UniformsLib.fog,
+				UniformsLib.lights,
+				{
+					emissive: { value: new Color( 0x000000 ) },
+					specular: { value: new Color( 0x111111 ) },
+					shininess: { value: 30 }
+				}
+			] ),
+
+			vertexShader: ShaderChunk.meshphong_vert,
+			fragmentShader: ShaderChunk.meshphong_frag
+
+		},
+
+		standard: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.common,
+				UniformsLib.envmap,
+				UniformsLib.aomap,
+				UniformsLib.lightmap,
+				UniformsLib.emissivemap,
+				UniformsLib.bumpmap,
+				UniformsLib.normalmap,
+				UniformsLib.displacementmap,
+				UniformsLib.roughnessmap,
+				UniformsLib.metalnessmap,
+				UniformsLib.fog,
+				UniformsLib.lights,
+				{
+					emissive: { value: new Color( 0x000000 ) },
+					roughness: { value: 0.5 },
+					metalness: { value: 0.5 },
+					envMapIntensity: { value: 1 } // temporary
+				}
+			] ),
+
+			vertexShader: ShaderChunk.meshphysical_vert,
+			fragmentShader: ShaderChunk.meshphysical_frag
+
+		},
+
+		matcap: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.common,
+				UniformsLib.bumpmap,
+				UniformsLib.normalmap,
+				UniformsLib.displacementmap,
+				UniformsLib.fog,
+				{
+					matcap: { value: null }
+				}
+			] ),
+
+			vertexShader: ShaderChunk.meshmatcap_vert,
+			fragmentShader: ShaderChunk.meshmatcap_frag
+
+		},
+
+		points: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.points,
+				UniformsLib.fog
+			] ),
+
+			vertexShader: ShaderChunk.points_vert,
+			fragmentShader: ShaderChunk.points_frag
+
+		},
+
+		dashed: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.common,
+				UniformsLib.fog,
+				{
+					scale: { value: 1 },
+					dashSize: { value: 1 },
+					totalSize: { value: 2 }
+				}
+			] ),
+
+			vertexShader: ShaderChunk.linedashed_vert,
+			fragmentShader: ShaderChunk.linedashed_frag
+
+		},
+
+		depth: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.common,
+				UniformsLib.displacementmap
+			] ),
+
+			vertexShader: ShaderChunk.depth_vert,
+			fragmentShader: ShaderChunk.depth_frag
+
+		},
+
+		normal: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.common,
+				UniformsLib.bumpmap,
+				UniformsLib.normalmap,
+				UniformsLib.displacementmap,
+				{
+					opacity: { value: 1.0 }
+				}
+			] ),
+
+			vertexShader: ShaderChunk.normal_vert,
+			fragmentShader: ShaderChunk.normal_frag
+
+		},
+
+		sprite: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.sprite,
+				UniformsLib.fog
+			] ),
+
+			vertexShader: ShaderChunk.sprite_vert,
+			fragmentShader: ShaderChunk.sprite_frag
+
+		},
+
+		background: {
+
+			uniforms: {
+				uvTransform: { value: new Matrix3() },
+				t2D: { value: null },
+			},
+
+			vertexShader: ShaderChunk.background_vert,
+			fragmentShader: ShaderChunk.background_frag
+
+		},
+		/* -------------------------------------------------------------------------
+		//	Cube map shader
+		 ------------------------------------------------------------------------- */
+
+		cube: {
+
+			uniforms: {
+				tCube: { value: null },
+				tFlip: { value: - 1 },
+				opacity: { value: 1.0 }
+			},
+
+			vertexShader: ShaderChunk.cube_vert,
+			fragmentShader: ShaderChunk.cube_frag
+
+		},
+
+		equirect: {
+
+			uniforms: {
+				tEquirect: { value: null },
+			},
+
+			vertexShader: ShaderChunk.equirect_vert,
+			fragmentShader: ShaderChunk.equirect_frag
+
+		},
+
+		distanceRGBA: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.common,
+				UniformsLib.displacementmap,
+				{
+					referencePosition: { value: new Vector3() },
+					nearDistance: { value: 1 },
+					farDistance: { value: 1000 }
+				}
+			] ),
+
+			vertexShader: ShaderChunk.distanceRGBA_vert,
+			fragmentShader: ShaderChunk.distanceRGBA_frag
+
+		},
+
+		shadow: {
+
+			uniforms: mergeUniforms( [
+				UniformsLib.lights,
+				UniformsLib.fog,
+				{
+					color: { value: new Color( 0x00000 ) },
+					opacity: { value: 1.0 }
+				},
+			] ),
+
+			vertexShader: ShaderChunk.shadow_vert,
+			fragmentShader: ShaderChunk.shadow_frag
+
+		}
+
+	};
+
+	ShaderLib.physical = {
+
+		uniforms: mergeUniforms( [
+			ShaderLib.standard.uniforms,
+			{
+				clearCoat: { value: 0 },
+				clearCoatRoughness: { value: 0 }
+			}
+		] ),
+
+		vertexShader: ShaderChunk.meshphysical_vert,
+		fragmentShader: ShaderChunk.meshphysical_frag
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLAnimation() {
+
+		var context = null;
+		var isAnimating = false;
+		var animationLoop = null;
+
+		function onAnimationFrame( time, frame ) {
+
+			if ( isAnimating === false ) return;
+
+			animationLoop( time, frame );
+
+			context.requestAnimationFrame( onAnimationFrame );
+
+		}
+
+		return {
+
+			start: function () {
+
+				if ( isAnimating === true ) return;
+				if ( animationLoop === null ) return;
+
+				context.requestAnimationFrame( onAnimationFrame );
+
+				isAnimating = true;
+
+			},
+
+			stop: function () {
+
+				isAnimating = false;
+
+			},
+
+			setAnimationLoop: function ( callback ) {
+
+				animationLoop = callback;
+
+			},
+
+			setContext: function ( value ) {
+
+				context = value;
+
+			}
+
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLAttributes( gl ) {
+
+		var buffers = new WeakMap();
+
+		function createBuffer( attribute, bufferType ) {
+
+			var array = attribute.array;
+			var usage = attribute.dynamic ? 35048 : 35044;
+
+			var buffer = gl.createBuffer();
+
+			gl.bindBuffer( bufferType, buffer );
+			gl.bufferData( bufferType, array, usage );
+
+			attribute.onUploadCallback();
+
+			var type = 5126;
+
+			if ( array instanceof Float32Array ) {
+
+				type = 5126;
+
+			} else if ( array instanceof Float64Array ) {
+
+				console.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' );
+
+			} else if ( array instanceof Uint16Array ) {
+
+				type = 5123;
+
+			} else if ( array instanceof Int16Array ) {
+
+				type = 5122;
+
+			} else if ( array instanceof Uint32Array ) {
+
+				type = 5125;
+
+			} else if ( array instanceof Int32Array ) {
+
+				type = 5124;
+
+			} else if ( array instanceof Int8Array ) {
+
+				type = 5120;
+
+			} else if ( array instanceof Uint8Array ) {
+
+				type = 5121;
+
+			}
+
+			return {
+				buffer: buffer,
+				type: type,
+				bytesPerElement: array.BYTES_PER_ELEMENT,
+				version: attribute.version
+			};
+
+		}
+
+		function updateBuffer( buffer, attribute, bufferType ) {
+
+			var array = attribute.array;
+			var updateRange = attribute.updateRange;
+
+			gl.bindBuffer( bufferType, buffer );
+
+			if ( attribute.dynamic === false ) {
+
+				gl.bufferData( bufferType, array, 35044 );
+
+			} else if ( updateRange.count === - 1 ) {
+
+				// Not using update ranges
+
+				gl.bufferSubData( bufferType, 0, array );
+
+			} else if ( updateRange.count === 0 ) {
+
+				console.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );
+
+			} else {
+
+				gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
+					array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );
+
+				updateRange.count = - 1; // reset range
+
+			}
+
+		}
+
+		//
+
+		function get( attribute ) {
+
+			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
+
+			return buffers.get( attribute );
+
+		}
+
+		function remove( attribute ) {
+
+			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
+
+			var data = buffers.get( attribute );
+
+			if ( data ) {
+
+				gl.deleteBuffer( data.buffer );
+
+				buffers.delete( attribute );
+
+			}
+
+		}
+
+		function update( attribute, bufferType ) {
+
+			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
+
+			var data = buffers.get( attribute );
+
+			if ( data === undefined ) {
+
+				buffers.set( attribute, createBuffer( attribute, bufferType ) );
+
+			} else if ( data.version < attribute.version ) {
+
+				updateBuffer( data.buffer, attribute, bufferType );
+
+				data.version = attribute.version;
+
+			}
+
+		}
+
+		return {
+
+			get: get,
+			remove: remove,
+			update: update
+
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function Face3( a, b, c, normal, color, materialIndex ) {
+
+		this.a = a;
+		this.b = b;
+		this.c = c;
+
+		this.normal = ( normal && normal.isVector3 ) ? normal : new Vector3();
+		this.vertexNormals = Array.isArray( normal ) ? normal : [];
+
+		this.color = ( color && color.isColor ) ? color : new Color();
+		this.vertexColors = Array.isArray( color ) ? color : [];
+
+		this.materialIndex = materialIndex !== undefined ? materialIndex : 0;
+
+	}
+
+	Object.assign( Face3.prototype, {
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( source ) {
+
+			this.a = source.a;
+			this.b = source.b;
+			this.c = source.c;
+
+			this.normal.copy( source.normal );
+			this.color.copy( source.color );
+
+			this.materialIndex = source.materialIndex;
+
+			for ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {
+
+				this.vertexNormals[ i ] = source.vertexNormals[ i ].clone();
+
+			}
+
+			for ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {
+
+				this.vertexColors[ i ] = source.vertexColors[ i ].clone();
+
+			}
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 * @author bhouston / http://clara.io
+	 */
+
+	function Euler( x, y, z, order ) {
+
+		this._x = x || 0;
+		this._y = y || 0;
+		this._z = z || 0;
+		this._order = order || Euler.DefaultOrder;
+
+	}
+
+	Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];
+
+	Euler.DefaultOrder = 'XYZ';
+
+	Object.defineProperties( Euler.prototype, {
+
+		x: {
+
+			get: function () {
+
+				return this._x;
+
+			},
+
+			set: function ( value ) {
+
+				this._x = value;
+				this.onChangeCallback();
+
+			}
+
+		},
+
+		y: {
+
+			get: function () {
+
+				return this._y;
+
+			},
+
+			set: function ( value ) {
+
+				this._y = value;
+				this.onChangeCallback();
+
+			}
+
+		},
+
+		z: {
+
+			get: function () {
+
+				return this._z;
+
+			},
+
+			set: function ( value ) {
+
+				this._z = value;
+				this.onChangeCallback();
+
+			}
+
+		},
+
+		order: {
+
+			get: function () {
+
+				return this._order;
+
+			},
+
+			set: function ( value ) {
+
+				this._order = value;
+				this.onChangeCallback();
+
+			}
+
+		}
+
+	} );
+
+	Object.assign( Euler.prototype, {
+
+		isEuler: true,
+
+		set: function ( x, y, z, order ) {
+
+			this._x = x;
+			this._y = y;
+			this._z = z;
+			this._order = order || this._order;
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor( this._x, this._y, this._z, this._order );
+
+		},
+
+		copy: function ( euler ) {
+
+			this._x = euler._x;
+			this._y = euler._y;
+			this._z = euler._z;
+			this._order = euler._order;
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		setFromRotationMatrix: function ( m, order, update ) {
+
+			var clamp = _Math.clamp;
+
+			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+
+			var te = m.elements;
+			var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
+			var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
+			var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];
+
+			order = order || this._order;
+
+			if ( order === 'XYZ' ) {
+
+				this._y = Math.asin( clamp( m13, - 1, 1 ) );
+
+				if ( Math.abs( m13 ) < 0.99999 ) {
+
+					this._x = Math.atan2( - m23, m33 );
+					this._z = Math.atan2( - m12, m11 );
+
+				} else {
+
+					this._x = Math.atan2( m32, m22 );
+					this._z = 0;
+
+				}
+
+			} else if ( order === 'YXZ' ) {
+
+				this._x = Math.asin( - clamp( m23, - 1, 1 ) );
+
+				if ( Math.abs( m23 ) < 0.99999 ) {
+
+					this._y = Math.atan2( m13, m33 );
+					this._z = Math.atan2( m21, m22 );
+
+				} else {
+
+					this._y = Math.atan2( - m31, m11 );
+					this._z = 0;
+
+				}
+
+			} else if ( order === 'ZXY' ) {
+
+				this._x = Math.asin( clamp( m32, - 1, 1 ) );
+
+				if ( Math.abs( m32 ) < 0.99999 ) {
+
+					this._y = Math.atan2( - m31, m33 );
+					this._z = Math.atan2( - m12, m22 );
+
+				} else {
+
+					this._y = 0;
+					this._z = Math.atan2( m21, m11 );
+
+				}
+
+			} else if ( order === 'ZYX' ) {
+
+				this._y = Math.asin( - clamp( m31, - 1, 1 ) );
+
+				if ( Math.abs( m31 ) < 0.99999 ) {
+
+					this._x = Math.atan2( m32, m33 );
+					this._z = Math.atan2( m21, m11 );
+
+				} else {
+
+					this._x = 0;
+					this._z = Math.atan2( - m12, m22 );
+
+				}
+
+			} else if ( order === 'YZX' ) {
+
+				this._z = Math.asin( clamp( m21, - 1, 1 ) );
+
+				if ( Math.abs( m21 ) < 0.99999 ) {
+
+					this._x = Math.atan2( - m23, m22 );
+					this._y = Math.atan2( - m31, m11 );
+
+				} else {
+
+					this._x = 0;
+					this._y = Math.atan2( m13, m33 );
+
+				}
+
+			} else if ( order === 'XZY' ) {
+
+				this._z = Math.asin( - clamp( m12, - 1, 1 ) );
+
+				if ( Math.abs( m12 ) < 0.99999 ) {
+
+					this._x = Math.atan2( m32, m22 );
+					this._y = Math.atan2( m13, m11 );
+
+				} else {
+
+					this._x = Math.atan2( - m23, m33 );
+					this._y = 0;
+
+				}
+
+			} else {
+
+				console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );
+
+			}
+
+			this._order = order;
+
+			if ( update !== false ) this.onChangeCallback();
+
+			return this;
+
+		},
+
+		setFromQuaternion: function () {
+
+			var matrix = new Matrix4();
+
+			return function setFromQuaternion( q, order, update ) {
+
+				matrix.makeRotationFromQuaternion( q );
+
+				return this.setFromRotationMatrix( matrix, order, update );
+
+			};
+
+		}(),
+
+		setFromVector3: function ( v, order ) {
+
+			return this.set( v.x, v.y, v.z, order || this._order );
+
+		},
+
+		reorder: function () {
+
+			// WARNING: this discards revolution information -bhouston
+
+			var q = new Quaternion();
+
+			return function reorder( newOrder ) {
+
+				q.setFromEuler( this );
+
+				return this.setFromQuaternion( q, newOrder );
+
+			};
+
+		}(),
+
+		equals: function ( euler ) {
+
+			return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );
+
+		},
+
+		fromArray: function ( array ) {
+
+			this._x = array[ 0 ];
+			this._y = array[ 1 ];
+			this._z = array[ 2 ];
+			if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];
+
+			this.onChangeCallback();
+
+			return this;
+
+		},
+
+		toArray: function ( array, offset ) {
+
+			if ( array === undefined ) array = [];
+			if ( offset === undefined ) offset = 0;
+
+			array[ offset ] = this._x;
+			array[ offset + 1 ] = this._y;
+			array[ offset + 2 ] = this._z;
+			array[ offset + 3 ] = this._order;
+
+			return array;
+
+		},
+
+		toVector3: function ( optionalResult ) {
+
+			if ( optionalResult ) {
+
+				return optionalResult.set( this._x, this._y, this._z );
+
+			} else {
+
+				return new Vector3( this._x, this._y, this._z );
+
+			}
+
+		},
+
+		onChange: function ( callback ) {
+
+			this.onChangeCallback = callback;
+
+			return this;
+
+		},
+
+		onChangeCallback: function () {}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function Layers() {
+
+		this.mask = 1 | 0;
+
+	}
+
+	Object.assign( Layers.prototype, {
+
+		set: function ( channel ) {
+
+			this.mask = 1 << channel | 0;
+
+		},
+
+		enable: function ( channel ) {
+
+			this.mask |= 1 << channel | 0;
+
+		},
+
+		toggle: function ( channel ) {
+
+			this.mask ^= 1 << channel | 0;
+
+		},
+
+		disable: function ( channel ) {
+
+			this.mask &= ~ ( 1 << channel | 0 );
+
+		},
+
+		test: function ( layers ) {
+
+			return ( this.mask & layers.mask ) !== 0;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 * @author elephantatwork / www.elephantatwork.ch
+	 */
+
+	var object3DId = 0;
+
+	function Object3D() {
+
+		Object.defineProperty( this, 'id', { value: object3DId ++ } );
+
+		this.uuid = _Math.generateUUID();
+
+		this.name = '';
+		this.type = 'Object3D';
+
+		this.parent = null;
+		this.children = [];
+
+		this.up = Object3D.DefaultUp.clone();
+
+		var position = new Vector3();
+		var rotation = new Euler();
+		var quaternion = new Quaternion();
+		var scale = new Vector3( 1, 1, 1 );
+
+		function onRotationChange() {
+
+			quaternion.setFromEuler( rotation, false );
+
+		}
+
+		function onQuaternionChange() {
+
+			rotation.setFromQuaternion( quaternion, undefined, false );
+
+		}
+
+		rotation.onChange( onRotationChange );
+		quaternion.onChange( onQuaternionChange );
+
+		Object.defineProperties( this, {
+			position: {
+				configurable: true,
+				enumerable: true,
+				value: position
+			},
+			rotation: {
+				configurable: true,
+				enumerable: true,
+				value: rotation
+			},
+			quaternion: {
+				configurable: true,
+				enumerable: true,
+				value: quaternion
+			},
+			scale: {
+				configurable: true,
+				enumerable: true,
+				value: scale
+			},
+			modelViewMatrix: {
+				value: new Matrix4()
+			},
+			normalMatrix: {
+				value: new Matrix3()
+			}
+		} );
+
+		this.matrix = new Matrix4();
+		this.matrixWorld = new Matrix4();
+
+		this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
+		this.matrixWorldNeedsUpdate = false;
+
+		this.layers = new Layers();
+		this.visible = true;
+
+		this.castShadow = false;
+		this.receiveShadow = false;
+
+		this.frustumCulled = true;
+		this.renderOrder = 0;
+
+		this.userData = {};
+
+	}
+
+	Object3D.DefaultUp = new Vector3( 0, 1, 0 );
+	Object3D.DefaultMatrixAutoUpdate = true;
+
+	Object3D.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
+
+		constructor: Object3D,
+
+		isObject3D: true,
+
+		onBeforeRender: function () {},
+		onAfterRender: function () {},
+
+		applyMatrix: function ( matrix ) {
+
+			if ( this.matrixAutoUpdate ) this.updateMatrix();
+
+			this.matrix.premultiply( matrix );
+
+			this.matrix.decompose( this.position, this.quaternion, this.scale );
+
+		},
+
+		applyQuaternion: function ( q ) {
+
+			this.quaternion.premultiply( q );
+
+			return this;
+
+		},
+
+		setRotationFromAxisAngle: function ( axis, angle ) {
+
+			// assumes axis is normalized
+
+			this.quaternion.setFromAxisAngle( axis, angle );
+
+		},
+
+		setRotationFromEuler: function ( euler ) {
+
+			this.quaternion.setFromEuler( euler, true );
+
+		},
+
+		setRotationFromMatrix: function ( m ) {
+
+			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+
+			this.quaternion.setFromRotationMatrix( m );
+
+		},
+
+		setRotationFromQuaternion: function ( q ) {
+
+			// assumes q is normalized
+
+			this.quaternion.copy( q );
+
+		},
+
+		rotateOnAxis: function () {
+
+			// rotate object on axis in object space
+			// axis is assumed to be normalized
+
+			var q1 = new Quaternion();
+
+			return function rotateOnAxis( axis, angle ) {
+
+				q1.setFromAxisAngle( axis, angle );
+
+				this.quaternion.multiply( q1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		rotateOnWorldAxis: function () {
+
+			// rotate object on axis in world space
+			// axis is assumed to be normalized
+			// method assumes no rotated parent
+
+			var q1 = new Quaternion();
+
+			return function rotateOnWorldAxis( axis, angle ) {
+
+				q1.setFromAxisAngle( axis, angle );
+
+				this.quaternion.premultiply( q1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		rotateX: function () {
+
+			var v1 = new Vector3( 1, 0, 0 );
+
+			return function rotateX( angle ) {
+
+				return this.rotateOnAxis( v1, angle );
+
+			};
+
+		}(),
+
+		rotateY: function () {
+
+			var v1 = new Vector3( 0, 1, 0 );
+
+			return function rotateY( angle ) {
+
+				return this.rotateOnAxis( v1, angle );
+
+			};
+
+		}(),
+
+		rotateZ: function () {
+
+			var v1 = new Vector3( 0, 0, 1 );
+
+			return function rotateZ( angle ) {
+
+				return this.rotateOnAxis( v1, angle );
+
+			};
+
+		}(),
+
+		translateOnAxis: function () {
+
+			// translate object by distance along axis in object space
+			// axis is assumed to be normalized
+
+			var v1 = new Vector3();
+
+			return function translateOnAxis( axis, distance ) {
+
+				v1.copy( axis ).applyQuaternion( this.quaternion );
+
+				this.position.add( v1.multiplyScalar( distance ) );
+
+				return this;
+
+			};
+
+		}(),
+
+		translateX: function () {
+
+			var v1 = new Vector3( 1, 0, 0 );
+
+			return function translateX( distance ) {
+
+				return this.translateOnAxis( v1, distance );
+
+			};
+
+		}(),
+
+		translateY: function () {
+
+			var v1 = new Vector3( 0, 1, 0 );
+
+			return function translateY( distance ) {
+
+				return this.translateOnAxis( v1, distance );
+
+			};
+
+		}(),
+
+		translateZ: function () {
+
+			var v1 = new Vector3( 0, 0, 1 );
+
+			return function translateZ( distance ) {
+
+				return this.translateOnAxis( v1, distance );
+
+			};
+
+		}(),
+
+		localToWorld: function ( vector ) {
+
+			return vector.applyMatrix4( this.matrixWorld );
+
+		},
+
+		worldToLocal: function () {
+
+			var m1 = new Matrix4();
+
+			return function worldToLocal( vector ) {
+
+				return vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );
+
+			};
+
+		}(),
+
+		lookAt: function () {
+
+			// This method does not support objects having non-uniformly-scaled parent(s)
+
+			var q1 = new Quaternion();
+			var m1 = new Matrix4();
+			var target = new Vector3();
+			var position = new Vector3();
+
+			return function lookAt( x, y, z ) {
+
+				if ( x.isVector3 ) {
+
+					target.copy( x );
+
+				} else {
+
+					target.set( x, y, z );
+
+				}
+
+				var parent = this.parent;
+
+				this.updateWorldMatrix( true, false );
+
+				position.setFromMatrixPosition( this.matrixWorld );
+
+				if ( this.isCamera || this.isLight ) {
+
+					m1.lookAt( position, target, this.up );
+
+				} else {
+
+					m1.lookAt( target, position, this.up );
+
+				}
+
+				this.quaternion.setFromRotationMatrix( m1 );
+
+				if ( parent ) {
+
+					m1.extractRotation( parent.matrixWorld );
+					q1.setFromRotationMatrix( m1 );
+					this.quaternion.premultiply( q1.inverse() );
+
+				}
+
+			};
+
+		}(),
+
+		add: function ( object ) {
+
+			if ( arguments.length > 1 ) {
+
+				for ( var i = 0; i < arguments.length; i ++ ) {
+
+					this.add( arguments[ i ] );
+
+				}
+
+				return this;
+
+			}
+
+			if ( object === this ) {
+
+				console.error( "THREE.Object3D.add: object can't be added as a child of itself.", object );
+				return this;
+
+			}
+
+			if ( ( object && object.isObject3D ) ) {
+
+				if ( object.parent !== null ) {
+
+					object.parent.remove( object );
+
+				}
+
+				object.parent = this;
+				object.dispatchEvent( { type: 'added' } );
+
+				this.children.push( object );
+
+			} else {
+
+				console.error( "THREE.Object3D.add: object not an instance of THREE.Object3D.", object );
+
+			}
+
+			return this;
+
+		},
+
+		remove: function ( object ) {
+
+			if ( arguments.length > 1 ) {
+
+				for ( var i = 0; i < arguments.length; i ++ ) {
+
+					this.remove( arguments[ i ] );
+
+				}
+
+				return this;
+
+			}
+
+			var index = this.children.indexOf( object );
+
+			if ( index !== - 1 ) {
+
+				object.parent = null;
+
+				object.dispatchEvent( { type: 'removed' } );
+
+				this.children.splice( index, 1 );
+
+			}
+
+			return this;
+
+		},
+
+		attach: function () {
+
+			// adds object as a child of this, while maintaining the object's world transform
+
+			var m = new Matrix4();
+
+			return function attach( object ) {
+
+				this.updateWorldMatrix( true, false );
+
+				m.getInverse( this.matrixWorld );
+
+				if ( object.parent !== null ) {
+
+					object.parent.updateWorldMatrix( true, false );
+
+					m.multiply( object.parent.matrixWorld );
+
+				}
+
+				object.applyMatrix( m );
+
+				object.updateWorldMatrix( false, false );
+
+				this.add( object );
+
+				return this;
+
+			};
+
+		}(),
+
+		getObjectById: function ( id ) {
+
+			return this.getObjectByProperty( 'id', id );
+
+		},
+
+		getObjectByName: function ( name ) {
+
+			return this.getObjectByProperty( 'name', name );
+
+		},
+
+		getObjectByProperty: function ( name, value ) {
+
+			if ( this[ name ] === value ) return this;
+
+			for ( var i = 0, l = this.children.length; i < l; i ++ ) {
+
+				var child = this.children[ i ];
+				var object = child.getObjectByProperty( name, value );
+
+				if ( object !== undefined ) {
+
+					return object;
+
+				}
+
+			}
+
+			return undefined;
+
+		},
+
+		getWorldPosition: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Object3D: .getWorldPosition() target is now required' );
+				target = new Vector3();
+
+			}
+
+			this.updateMatrixWorld( true );
+
+			return target.setFromMatrixPosition( this.matrixWorld );
+
+		},
+
+		getWorldQuaternion: function () {
+
+			var position = new Vector3();
+			var scale = new Vector3();
+
+			return function getWorldQuaternion( target ) {
+
+				if ( target === undefined ) {
+
+					console.warn( 'THREE.Object3D: .getWorldQuaternion() target is now required' );
+					target = new Quaternion();
+
+				}
+
+				this.updateMatrixWorld( true );
+
+				this.matrixWorld.decompose( position, target, scale );
+
+				return target;
+
+			};
+
+		}(),
+
+		getWorldScale: function () {
+
+			var position = new Vector3();
+			var quaternion = new Quaternion();
+
+			return function getWorldScale( target ) {
+
+				if ( target === undefined ) {
+
+					console.warn( 'THREE.Object3D: .getWorldScale() target is now required' );
+					target = new Vector3();
+
+				}
+
+				this.updateMatrixWorld( true );
+
+				this.matrixWorld.decompose( position, quaternion, target );
+
+				return target;
+
+			};
+
+		}(),
+
+		getWorldDirection: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Object3D: .getWorldDirection() target is now required' );
+				target = new Vector3();
+
+			}
+
+			this.updateMatrixWorld( true );
+
+			var e = this.matrixWorld.elements;
+
+			return target.set( e[ 8 ], e[ 9 ], e[ 10 ] ).normalize();
+
+		},
+
+		raycast: function () {},
+
+		traverse: function ( callback ) {
+
+			callback( this );
+
+			var children = this.children;
+
+			for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+				children[ i ].traverse( callback );
+
+			}
+
+		},
+
+		traverseVisible: function ( callback ) {
+
+			if ( this.visible === false ) return;
+
+			callback( this );
+
+			var children = this.children;
+
+			for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+				children[ i ].traverseVisible( callback );
+
+			}
+
+		},
+
+		traverseAncestors: function ( callback ) {
+
+			var parent = this.parent;
+
+			if ( parent !== null ) {
+
+				callback( parent );
+
+				parent.traverseAncestors( callback );
+
+			}
+
+		},
+
+		updateMatrix: function () {
+
+			this.matrix.compose( this.position, this.quaternion, this.scale );
+
+			this.matrixWorldNeedsUpdate = true;
+
+		},
+
+		updateMatrixWorld: function ( force ) {
+
+			if ( this.matrixAutoUpdate ) this.updateMatrix();
+
+			if ( this.matrixWorldNeedsUpdate || force ) {
+
+				if ( this.parent === null ) {
+
+					this.matrixWorld.copy( this.matrix );
+
+				} else {
+
+					this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );
+
+				}
+
+				this.matrixWorldNeedsUpdate = false;
+
+				force = true;
+
+			}
+
+			// update children
+
+			var children = this.children;
+
+			for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+				children[ i ].updateMatrixWorld( force );
+
+			}
+
+		},
+
+		updateWorldMatrix: function ( updateParents, updateChildren ) {
+
+			var parent = this.parent;
+
+			if ( updateParents === true && parent !== null ) {
+
+				parent.updateWorldMatrix( true, false );
+
+			}
+
+			if ( this.matrixAutoUpdate ) this.updateMatrix();
+
+			if ( this.parent === null ) {
+
+				this.matrixWorld.copy( this.matrix );
+
+			} else {
+
+				this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );
+
+			}
+
+			// update children
+
+			if ( updateChildren === true ) {
+
+				var children = this.children;
+
+				for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+					children[ i ].updateWorldMatrix( false, true );
+
+				}
+
+			}
+
+		},
+
+		toJSON: function ( meta ) {
+
+			// meta is a string when called from JSON.stringify
+			var isRootObject = ( meta === undefined || typeof meta === 'string' );
+
+			var output = {};
+
+			// meta is a hash used to collect geometries, materials.
+			// not providing it implies that this is the root object
+			// being serialized.
+			if ( isRootObject ) {
+
+				// initialize meta obj
+				meta = {
+					geometries: {},
+					materials: {},
+					textures: {},
+					images: {},
+					shapes: {}
+				};
+
+				output.metadata = {
+					version: 4.5,
+					type: 'Object',
+					generator: 'Object3D.toJSON'
+				};
+
+			}
+
+			// standard Object3D serialization
+
+			var object = {};
+
+			object.uuid = this.uuid;
+			object.type = this.type;
+
+			if ( this.name !== '' ) object.name = this.name;
+			if ( this.castShadow === true ) object.castShadow = true;
+			if ( this.receiveShadow === true ) object.receiveShadow = true;
+			if ( this.visible === false ) object.visible = false;
+			if ( this.frustumCulled === false ) object.frustumCulled = false;
+			if ( this.renderOrder !== 0 ) object.renderOrder = this.renderOrder;
+			if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;
+
+			object.layers = this.layers.mask;
+			object.matrix = this.matrix.toArray();
+
+			if ( this.matrixAutoUpdate === false ) object.matrixAutoUpdate = false;
+
+			// object specific properties
+
+			if ( this.isMesh && this.drawMode !== TrianglesDrawMode ) object.drawMode = this.drawMode;
+
+			//
+
+			function serialize( library, element ) {
+
+				if ( library[ element.uuid ] === undefined ) {
+
+					library[ element.uuid ] = element.toJSON( meta );
+
+				}
+
+				return element.uuid;
+
+			}
+
+			if ( this.isMesh || this.isLine || this.isPoints ) {
+
+				object.geometry = serialize( meta.geometries, this.geometry );
+
+				var parameters = this.geometry.parameters;
+
+				if ( parameters !== undefined && parameters.shapes !== undefined ) {
+
+					var shapes = parameters.shapes;
+
+					if ( Array.isArray( shapes ) ) {
+
+						for ( var i = 0, l = shapes.length; i < l; i ++ ) {
+
+							var shape = shapes[ i ];
+
+							serialize( meta.shapes, shape );
+
+						}
+
+					} else {
+
+						serialize( meta.shapes, shapes );
+
+					}
+
+				}
+
+			}
+
+			if ( this.material !== undefined ) {
+
+				if ( Array.isArray( this.material ) ) {
+
+					var uuids = [];
+
+					for ( var i = 0, l = this.material.length; i < l; i ++ ) {
+
+						uuids.push( serialize( meta.materials, this.material[ i ] ) );
+
+					}
+
+					object.material = uuids;
+
+				} else {
+
+					object.material = serialize( meta.materials, this.material );
+
+				}
+
+			}
+
+			//
+
+			if ( this.children.length > 0 ) {
+
+				object.children = [];
+
+				for ( var i = 0; i < this.children.length; i ++ ) {
+
+					object.children.push( this.children[ i ].toJSON( meta ).object );
+
+				}
+
+			}
+
+			if ( isRootObject ) {
+
+				var geometries = extractFromCache( meta.geometries );
+				var materials = extractFromCache( meta.materials );
+				var textures = extractFromCache( meta.textures );
+				var images = extractFromCache( meta.images );
+				var shapes = extractFromCache( meta.shapes );
+
+				if ( geometries.length > 0 ) output.geometries = geometries;
+				if ( materials.length > 0 ) output.materials = materials;
+				if ( textures.length > 0 ) output.textures = textures;
+				if ( images.length > 0 ) output.images = images;
+				if ( shapes.length > 0 ) output.shapes = shapes;
+
+			}
+
+			output.object = object;
+
+			return output;
+
+			// extract data from the cache hash
+			// remove metadata on each item
+			// and return as array
+			function extractFromCache( cache ) {
+
+				var values = [];
+				for ( var key in cache ) {
+
+					var data = cache[ key ];
+					delete data.metadata;
+					values.push( data );
+
+				}
+				return values;
+
+			}
+
+		},
+
+		clone: function ( recursive ) {
+
+			return new this.constructor().copy( this, recursive );
+
+		},
+
+		copy: function ( source, recursive ) {
+
+			if ( recursive === undefined ) recursive = true;
+
+			this.name = source.name;
+
+			this.up.copy( source.up );
+
+			this.position.copy( source.position );
+			this.quaternion.copy( source.quaternion );
+			this.scale.copy( source.scale );
+
+			this.matrix.copy( source.matrix );
+			this.matrixWorld.copy( source.matrixWorld );
+
+			this.matrixAutoUpdate = source.matrixAutoUpdate;
+			this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;
+
+			this.layers.mask = source.layers.mask;
+			this.visible = source.visible;
+
+			this.castShadow = source.castShadow;
+			this.receiveShadow = source.receiveShadow;
+
+			this.frustumCulled = source.frustumCulled;
+			this.renderOrder = source.renderOrder;
+
+			this.userData = JSON.parse( JSON.stringify( source.userData ) );
+
+			if ( recursive === true ) {
+
+				for ( var i = 0; i < source.children.length; i ++ ) {
+
+					var child = source.children[ i ];
+					this.add( child.clone() );
+
+				}
+
+			}
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author kile / http://kile.stravaganza.org/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 * @author bhouston / http://clara.io
+	 */
+
+	var geometryId = 0; // Geometry uses even numbers as Id
+
+	function Geometry() {
+
+		Object.defineProperty( this, 'id', { value: geometryId += 2 } );
+
+		this.uuid = _Math.generateUUID();
+
+		this.name = '';
+		this.type = 'Geometry';
+
+		this.vertices = [];
+		this.colors = [];
+		this.faces = [];
+		this.faceVertexUvs = [[]];
+
+		this.morphTargets = [];
+		this.morphNormals = [];
+
+		this.skinWeights = [];
+		this.skinIndices = [];
+
+		this.lineDistances = [];
+
+		this.boundingBox = null;
+		this.boundingSphere = null;
+
+		// update flags
+
+		this.elementsNeedUpdate = false;
+		this.verticesNeedUpdate = false;
+		this.uvsNeedUpdate = false;
+		this.normalsNeedUpdate = false;
+		this.colorsNeedUpdate = false;
+		this.lineDistancesNeedUpdate = false;
+		this.groupsNeedUpdate = false;
+
+	}
+
+	Geometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
+
+		constructor: Geometry,
+
+		isGeometry: true,
+
+		applyMatrix: function ( matrix ) {
+
+			var normalMatrix = new Matrix3().getNormalMatrix( matrix );
+
+			for ( var i = 0, il = this.vertices.length; i < il; i ++ ) {
+
+				var vertex = this.vertices[ i ];
+				vertex.applyMatrix4( matrix );
+
+			}
+
+			for ( var i = 0, il = this.faces.length; i < il; i ++ ) {
+
+				var face = this.faces[ i ];
+				face.normal.applyMatrix3( normalMatrix ).normalize();
+
+				for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {
+
+					face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();
+
+				}
+
+			}
+
+			if ( this.boundingBox !== null ) {
+
+				this.computeBoundingBox();
+
+			}
+
+			if ( this.boundingSphere !== null ) {
+
+				this.computeBoundingSphere();
+
+			}
+
+			this.verticesNeedUpdate = true;
+			this.normalsNeedUpdate = true;
+
+			return this;
+
+		},
+
+		rotateX: function () {
+
+			// rotate geometry around world x-axis
+
+			var m1 = new Matrix4();
+
+			return function rotateX( angle ) {
+
+				m1.makeRotationX( angle );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		rotateY: function () {
+
+			// rotate geometry around world y-axis
+
+			var m1 = new Matrix4();
+
+			return function rotateY( angle ) {
+
+				m1.makeRotationY( angle );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		rotateZ: function () {
+
+			// rotate geometry around world z-axis
+
+			var m1 = new Matrix4();
+
+			return function rotateZ( angle ) {
+
+				m1.makeRotationZ( angle );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		translate: function () {
+
+			// translate geometry
+
+			var m1 = new Matrix4();
+
+			return function translate( x, y, z ) {
+
+				m1.makeTranslation( x, y, z );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		scale: function () {
+
+			// scale geometry
+
+			var m1 = new Matrix4();
+
+			return function scale( x, y, z ) {
+
+				m1.makeScale( x, y, z );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		lookAt: function () {
+
+			var obj = new Object3D();
+
+			return function lookAt( vector ) {
+
+				obj.lookAt( vector );
+
+				obj.updateMatrix();
+
+				this.applyMatrix( obj.matrix );
+
+			};
+
+		}(),
+
+		fromBufferGeometry: function ( geometry ) {
+
+			var scope = this;
+
+			var indices = geometry.index !== null ? geometry.index.array : undefined;
+			var attributes = geometry.attributes;
+
+			var positions = attributes.position.array;
+			var normals = attributes.normal !== undefined ? attributes.normal.array : undefined;
+			var colors = attributes.color !== undefined ? attributes.color.array : undefined;
+			var uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;
+			var uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;
+
+			if ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];
+
+			for ( var i = 0; i < positions.length; i += 3 ) {
+
+				scope.vertices.push( new Vector3().fromArray( positions, i ) );
+
+				if ( colors !== undefined ) {
+
+					scope.colors.push( new Color().fromArray( colors, i ) );
+
+				}
+
+			}
+
+			function addFace( a, b, c, materialIndex ) {
+
+				var vertexColors = ( colors === undefined ) ? [] : [
+					scope.colors[ a ].clone(),
+					scope.colors[ b ].clone(),
+					scope.colors[ c ].clone() ];
+
+				var vertexNormals = ( normals === undefined ) ? [] : [
+					new Vector3().fromArray( normals, a * 3 ),
+					new Vector3().fromArray( normals, b * 3 ),
+					new Vector3().fromArray( normals, c * 3 )
+				];
+
+				var face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex );
+
+				scope.faces.push( face );
+
+				if ( uvs !== undefined ) {
+
+					scope.faceVertexUvs[ 0 ].push( [
+						new Vector2().fromArray( uvs, a * 2 ),
+						new Vector2().fromArray( uvs, b * 2 ),
+						new Vector2().fromArray( uvs, c * 2 )
+					] );
+
+				}
+
+				if ( uvs2 !== undefined ) {
+
+					scope.faceVertexUvs[ 1 ].push( [
+						new Vector2().fromArray( uvs2, a * 2 ),
+						new Vector2().fromArray( uvs2, b * 2 ),
+						new Vector2().fromArray( uvs2, c * 2 )
+					] );
+
+				}
+
+			}
+
+			var groups = geometry.groups;
+
+			if ( groups.length > 0 ) {
+
+				for ( var i = 0; i < groups.length; i ++ ) {
+
+					var group = groups[ i ];
+
+					var start = group.start;
+					var count = group.count;
+
+					for ( var j = start, jl = start + count; j < jl; j += 3 ) {
+
+						if ( indices !== undefined ) {
+
+							addFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex );
+
+						} else {
+
+							addFace( j, j + 1, j + 2, group.materialIndex );
+
+						}
+
+					}
+
+				}
+
+			} else {
+
+				if ( indices !== undefined ) {
+
+					for ( var i = 0; i < indices.length; i += 3 ) {
+
+						addFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );
+
+					}
+
+				} else {
+
+					for ( var i = 0; i < positions.length / 3; i += 3 ) {
+
+						addFace( i, i + 1, i + 2 );
+
+					}
+
+				}
+
+			}
+
+			this.computeFaceNormals();
+
+			if ( geometry.boundingBox !== null ) {
+
+				this.boundingBox = geometry.boundingBox.clone();
+
+			}
+
+			if ( geometry.boundingSphere !== null ) {
+
+				this.boundingSphere = geometry.boundingSphere.clone();
+
+			}
+
+			return this;
+
+		},
+
+		center: function () {
+
+			var offset = new Vector3();
+
+			return function center() {
+
+				this.computeBoundingBox();
+
+				this.boundingBox.getCenter( offset ).negate();
+
+				this.translate( offset.x, offset.y, offset.z );
+
+				return this;
+
+			};
+
+		}(),
+
+		normalize: function () {
+
+			this.computeBoundingSphere();
+
+			var center = this.boundingSphere.center;
+			var radius = this.boundingSphere.radius;
+
+			var s = radius === 0 ? 1 : 1.0 / radius;
+
+			var matrix = new Matrix4();
+			matrix.set(
+				s, 0, 0, - s * center.x,
+				0, s, 0, - s * center.y,
+				0, 0, s, - s * center.z,
+				0, 0, 0, 1
+			);
+
+			this.applyMatrix( matrix );
+
+			return this;
+
+		},
+
+		computeFaceNormals: function () {
+
+			var cb = new Vector3(), ab = new Vector3();
+
+			for ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+				var face = this.faces[ f ];
+
+				var vA = this.vertices[ face.a ];
+				var vB = this.vertices[ face.b ];
+				var vC = this.vertices[ face.c ];
+
+				cb.subVectors( vC, vB );
+				ab.subVectors( vA, vB );
+				cb.cross( ab );
+
+				cb.normalize();
+
+				face.normal.copy( cb );
+
+			}
+
+		},
+
+		computeVertexNormals: function ( areaWeighted ) {
+
+			if ( areaWeighted === undefined ) areaWeighted = true;
+
+			var v, vl, f, fl, face, vertices;
+
+			vertices = new Array( this.vertices.length );
+
+			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {
+
+				vertices[ v ] = new Vector3();
+
+			}
+
+			if ( areaWeighted ) {
+
+				// vertex normals weighted by triangle areas
+				// http://www.iquilezles.org/www/articles/normals/normals.htm
+
+				var vA, vB, vC;
+				var cb = new Vector3(), ab = new Vector3();
+
+				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+					face = this.faces[ f ];
+
+					vA = this.vertices[ face.a ];
+					vB = this.vertices[ face.b ];
+					vC = this.vertices[ face.c ];
+
+					cb.subVectors( vC, vB );
+					ab.subVectors( vA, vB );
+					cb.cross( ab );
+
+					vertices[ face.a ].add( cb );
+					vertices[ face.b ].add( cb );
+					vertices[ face.c ].add( cb );
+
+				}
+
+			} else {
+
+				this.computeFaceNormals();
+
+				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+					face = this.faces[ f ];
+
+					vertices[ face.a ].add( face.normal );
+					vertices[ face.b ].add( face.normal );
+					vertices[ face.c ].add( face.normal );
+
+				}
+
+			}
+
+			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {
+
+				vertices[ v ].normalize();
+
+			}
+
+			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+				face = this.faces[ f ];
+
+				var vertexNormals = face.vertexNormals;
+
+				if ( vertexNormals.length === 3 ) {
+
+					vertexNormals[ 0 ].copy( vertices[ face.a ] );
+					vertexNormals[ 1 ].copy( vertices[ face.b ] );
+					vertexNormals[ 2 ].copy( vertices[ face.c ] );
+
+				} else {
+
+					vertexNormals[ 0 ] = vertices[ face.a ].clone();
+					vertexNormals[ 1 ] = vertices[ face.b ].clone();
+					vertexNormals[ 2 ] = vertices[ face.c ].clone();
+
+				}
+
+			}
+
+			if ( this.faces.length > 0 ) {
+
+				this.normalsNeedUpdate = true;
+
+			}
+
+		},
+
+		computeFlatVertexNormals: function () {
+
+			var f, fl, face;
+
+			this.computeFaceNormals();
+
+			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+				face = this.faces[ f ];
+
+				var vertexNormals = face.vertexNormals;
+
+				if ( vertexNormals.length === 3 ) {
+
+					vertexNormals[ 0 ].copy( face.normal );
+					vertexNormals[ 1 ].copy( face.normal );
+					vertexNormals[ 2 ].copy( face.normal );
+
+				} else {
+
+					vertexNormals[ 0 ] = face.normal.clone();
+					vertexNormals[ 1 ] = face.normal.clone();
+					vertexNormals[ 2 ] = face.normal.clone();
+
+				}
+
+			}
+
+			if ( this.faces.length > 0 ) {
+
+				this.normalsNeedUpdate = true;
+
+			}
+
+		},
+
+		computeMorphNormals: function () {
+
+			var i, il, f, fl, face;
+
+			// save original normals
+			// - create temp variables on first access
+			//   otherwise just copy (for faster repeated calls)
+
+			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+				face = this.faces[ f ];
+
+				if ( ! face.__originalFaceNormal ) {
+
+					face.__originalFaceNormal = face.normal.clone();
+
+				} else {
+
+					face.__originalFaceNormal.copy( face.normal );
+
+				}
+
+				if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];
+
+				for ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {
+
+					if ( ! face.__originalVertexNormals[ i ] ) {
+
+						face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();
+
+					} else {
+
+						face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );
+
+					}
+
+				}
+
+			}
+
+			// use temp geometry to compute face and vertex normals for each morph
+
+			var tmpGeo = new Geometry();
+			tmpGeo.faces = this.faces;
+
+			for ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {
+
+				// create on first access
+
+				if ( ! this.morphNormals[ i ] ) {
+
+					this.morphNormals[ i ] = {};
+					this.morphNormals[ i ].faceNormals = [];
+					this.morphNormals[ i ].vertexNormals = [];
+
+					var dstNormalsFace = this.morphNormals[ i ].faceNormals;
+					var dstNormalsVertex = this.morphNormals[ i ].vertexNormals;
+
+					var faceNormal, vertexNormals;
+
+					for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+						faceNormal = new Vector3();
+						vertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() };
+
+						dstNormalsFace.push( faceNormal );
+						dstNormalsVertex.push( vertexNormals );
+
+					}
+
+				}
+
+				var morphNormals = this.morphNormals[ i ];
+
+				// set vertices to morph target
+
+				tmpGeo.vertices = this.morphTargets[ i ].vertices;
+
+				// compute morph normals
+
+				tmpGeo.computeFaceNormals();
+				tmpGeo.computeVertexNormals();
+
+				// store morph normals
+
+				var faceNormal, vertexNormals;
+
+				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+					face = this.faces[ f ];
+
+					faceNormal = morphNormals.faceNormals[ f ];
+					vertexNormals = morphNormals.vertexNormals[ f ];
+
+					faceNormal.copy( face.normal );
+
+					vertexNormals.a.copy( face.vertexNormals[ 0 ] );
+					vertexNormals.b.copy( face.vertexNormals[ 1 ] );
+					vertexNormals.c.copy( face.vertexNormals[ 2 ] );
+
+				}
+
+			}
+
+			// restore original normals
+
+			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+				face = this.faces[ f ];
+
+				face.normal = face.__originalFaceNormal;
+				face.vertexNormals = face.__originalVertexNormals;
+
+			}
+
+		},
+
+		computeBoundingBox: function () {
+
+			if ( this.boundingBox === null ) {
+
+				this.boundingBox = new Box3();
+
+			}
+
+			this.boundingBox.setFromPoints( this.vertices );
+
+		},
+
+		computeBoundingSphere: function () {
+
+			if ( this.boundingSphere === null ) {
+
+				this.boundingSphere = new Sphere();
+
+			}
+
+			this.boundingSphere.setFromPoints( this.vertices );
+
+		},
+
+		merge: function ( geometry, matrix, materialIndexOffset ) {
+
+			if ( ! ( geometry && geometry.isGeometry ) ) {
+
+				console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );
+				return;
+
+			}
+
+			var normalMatrix,
+				vertexOffset = this.vertices.length,
+				vertices1 = this.vertices,
+				vertices2 = geometry.vertices,
+				faces1 = this.faces,
+				faces2 = geometry.faces,
+				uvs1 = this.faceVertexUvs[ 0 ],
+				uvs2 = geometry.faceVertexUvs[ 0 ],
+				colors1 = this.colors,
+				colors2 = geometry.colors;
+
+			if ( materialIndexOffset === undefined ) materialIndexOffset = 0;
+
+			if ( matrix !== undefined ) {
+
+				normalMatrix = new Matrix3().getNormalMatrix( matrix );
+
+			}
+
+			// vertices
+
+			for ( var i = 0, il = vertices2.length; i < il; i ++ ) {
+
+				var vertex = vertices2[ i ];
+
+				var vertexCopy = vertex.clone();
+
+				if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );
+
+				vertices1.push( vertexCopy );
+
+			}
+
+			// colors
+
+			for ( var i = 0, il = colors2.length; i < il; i ++ ) {
+
+				colors1.push( colors2[ i ].clone() );
+
+			}
+
+			// faces
+
+			for ( i = 0, il = faces2.length; i < il; i ++ ) {
+
+				var face = faces2[ i ], faceCopy, normal, color,
+					faceVertexNormals = face.vertexNormals,
+					faceVertexColors = face.vertexColors;
+
+				faceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );
+				faceCopy.normal.copy( face.normal );
+
+				if ( normalMatrix !== undefined ) {
+
+					faceCopy.normal.applyMatrix3( normalMatrix ).normalize();
+
+				}
+
+				for ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {
+
+					normal = faceVertexNormals[ j ].clone();
+
+					if ( normalMatrix !== undefined ) {
+
+						normal.applyMatrix3( normalMatrix ).normalize();
+
+					}
+
+					faceCopy.vertexNormals.push( normal );
+
+				}
+
+				faceCopy.color.copy( face.color );
+
+				for ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {
+
+					color = faceVertexColors[ j ];
+					faceCopy.vertexColors.push( color.clone() );
+
+				}
+
+				faceCopy.materialIndex = face.materialIndex + materialIndexOffset;
+
+				faces1.push( faceCopy );
+
+			}
+
+			// uvs
+
+			for ( i = 0, il = uvs2.length; i < il; i ++ ) {
+
+				var uv = uvs2[ i ], uvCopy = [];
+
+				if ( uv === undefined ) {
+
+					continue;
+
+				}
+
+				for ( var j = 0, jl = uv.length; j < jl; j ++ ) {
+
+					uvCopy.push( uv[ j ].clone() );
+
+				}
+
+				uvs1.push( uvCopy );
+
+			}
+
+		},
+
+		mergeMesh: function ( mesh ) {
+
+			if ( ! ( mesh && mesh.isMesh ) ) {
+
+				console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );
+				return;
+
+			}
+
+			if ( mesh.matrixAutoUpdate ) mesh.updateMatrix();
+
+			this.merge( mesh.geometry, mesh.matrix );
+
+		},
+
+		/*
+		 * Checks for duplicate vertices with hashmap.
+		 * Duplicated vertices are removed
+		 * and faces' vertices are updated.
+		 */
+
+		mergeVertices: function () {
+
+			var verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)
+			var unique = [], changes = [];
+
+			var v, key;
+			var precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001
+			var precision = Math.pow( 10, precisionPoints );
+			var i, il, face;
+			var indices, j, jl;
+
+			for ( i = 0, il = this.vertices.length; i < il; i ++ ) {
+
+				v = this.vertices[ i ];
+				key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );
+
+				if ( verticesMap[ key ] === undefined ) {
+
+					verticesMap[ key ] = i;
+					unique.push( this.vertices[ i ] );
+					changes[ i ] = unique.length - 1;
+
+				} else {
+
+					//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
+					changes[ i ] = changes[ verticesMap[ key ] ];
+
+				}
+
+			}
+
+
+			// if faces are completely degenerate after merging vertices, we
+			// have to remove them from the geometry.
+			var faceIndicesToRemove = [];
+
+			for ( i = 0, il = this.faces.length; i < il; i ++ ) {
+
+				face = this.faces[ i ];
+
+				face.a = changes[ face.a ];
+				face.b = changes[ face.b ];
+				face.c = changes[ face.c ];
+
+				indices = [ face.a, face.b, face.c ];
+
+				// if any duplicate vertices are found in a Face3
+				// we have to remove the face as nothing can be saved
+				for ( var n = 0; n < 3; n ++ ) {
+
+					if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {
+
+						faceIndicesToRemove.push( i );
+						break;
+
+					}
+
+				}
+
+			}
+
+			for ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {
+
+				var idx = faceIndicesToRemove[ i ];
+
+				this.faces.splice( idx, 1 );
+
+				for ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {
+
+					this.faceVertexUvs[ j ].splice( idx, 1 );
+
+				}
+
+			}
+
+			// Use unique set of vertices
+
+			var diff = this.vertices.length - unique.length;
+			this.vertices = unique;
+			return diff;
+
+		},
+
+		setFromPoints: function ( points ) {
+
+			this.vertices = [];
+
+			for ( var i = 0, l = points.length; i < l; i ++ ) {
+
+				var point = points[ i ];
+				this.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );
+
+			}
+
+			return this;
+
+		},
+
+		sortFacesByMaterialIndex: function () {
+
+			var faces = this.faces;
+			var length = faces.length;
+
+			// tag faces
+
+			for ( var i = 0; i < length; i ++ ) {
+
+				faces[ i ]._id = i;
+
+			}
+
+			// sort faces
+
+			function materialIndexSort( a, b ) {
+
+				return a.materialIndex - b.materialIndex;
+
+			}
+
+			faces.sort( materialIndexSort );
+
+			// sort uvs
+
+			var uvs1 = this.faceVertexUvs[ 0 ];
+			var uvs2 = this.faceVertexUvs[ 1 ];
+
+			var newUvs1, newUvs2;
+
+			if ( uvs1 && uvs1.length === length ) newUvs1 = [];
+			if ( uvs2 && uvs2.length === length ) newUvs2 = [];
+
+			for ( var i = 0; i < length; i ++ ) {
+
+				var id = faces[ i ]._id;
+
+				if ( newUvs1 ) newUvs1.push( uvs1[ id ] );
+				if ( newUvs2 ) newUvs2.push( uvs2[ id ] );
+
+			}
+
+			if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;
+			if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;
+
+		},
+
+		toJSON: function () {
+
+			var data = {
+				metadata: {
+					version: 4.5,
+					type: 'Geometry',
+					generator: 'Geometry.toJSON'
+				}
+			};
+
+			// standard Geometry serialization
+
+			data.uuid = this.uuid;
+			data.type = this.type;
+			if ( this.name !== '' ) data.name = this.name;
+
+			if ( this.parameters !== undefined ) {
+
+				var parameters = this.parameters;
+
+				for ( var key in parameters ) {
+
+					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];
+
+				}
+
+				return data;
+
+			}
+
+			var vertices = [];
+
+			for ( var i = 0; i < this.vertices.length; i ++ ) {
+
+				var vertex = this.vertices[ i ];
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+			}
+
+			var faces = [];
+			var normals = [];
+			var normalsHash = {};
+			var colors = [];
+			var colorsHash = {};
+			var uvs = [];
+			var uvsHash = {};
+
+			for ( var i = 0; i < this.faces.length; i ++ ) {
+
+				var face = this.faces[ i ];
+
+				var hasMaterial = true;
+				var hasFaceUv = false; // deprecated
+				var hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;
+				var hasFaceNormal = face.normal.length() > 0;
+				var hasFaceVertexNormal = face.vertexNormals.length > 0;
+				var hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;
+				var hasFaceVertexColor = face.vertexColors.length > 0;
+
+				var faceType = 0;
+
+				faceType = setBit( faceType, 0, 0 ); // isQuad
+				faceType = setBit( faceType, 1, hasMaterial );
+				faceType = setBit( faceType, 2, hasFaceUv );
+				faceType = setBit( faceType, 3, hasFaceVertexUv );
+				faceType = setBit( faceType, 4, hasFaceNormal );
+				faceType = setBit( faceType, 5, hasFaceVertexNormal );
+				faceType = setBit( faceType, 6, hasFaceColor );
+				faceType = setBit( faceType, 7, hasFaceVertexColor );
+
+				faces.push( faceType );
+				faces.push( face.a, face.b, face.c );
+				faces.push( face.materialIndex );
+
+				if ( hasFaceVertexUv ) {
+
+					var faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];
+
+					faces.push(
+						getUvIndex( faceVertexUvs[ 0 ] ),
+						getUvIndex( faceVertexUvs[ 1 ] ),
+						getUvIndex( faceVertexUvs[ 2 ] )
+					);
+
+				}
+
+				if ( hasFaceNormal ) {
+
+					faces.push( getNormalIndex( face.normal ) );
+
+				}
+
+				if ( hasFaceVertexNormal ) {
+
+					var vertexNormals = face.vertexNormals;
+
+					faces.push(
+						getNormalIndex( vertexNormals[ 0 ] ),
+						getNormalIndex( vertexNormals[ 1 ] ),
+						getNormalIndex( vertexNormals[ 2 ] )
+					);
+
+				}
+
+				if ( hasFaceColor ) {
+
+					faces.push( getColorIndex( face.color ) );
+
+				}
+
+				if ( hasFaceVertexColor ) {
+
+					var vertexColors = face.vertexColors;
+
+					faces.push(
+						getColorIndex( vertexColors[ 0 ] ),
+						getColorIndex( vertexColors[ 1 ] ),
+						getColorIndex( vertexColors[ 2 ] )
+					);
+
+				}
+
+			}
+
+			function setBit( value, position, enabled ) {
+
+				return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );
+
+			}
+
+			function getNormalIndex( normal ) {
+
+				var hash = normal.x.toString() + normal.y.toString() + normal.z.toString();
+
+				if ( normalsHash[ hash ] !== undefined ) {
+
+					return normalsHash[ hash ];
+
+				}
+
+				normalsHash[ hash ] = normals.length / 3;
+				normals.push( normal.x, normal.y, normal.z );
+
+				return normalsHash[ hash ];
+
+			}
+
+			function getColorIndex( color ) {
+
+				var hash = color.r.toString() + color.g.toString() + color.b.toString();
+
+				if ( colorsHash[ hash ] !== undefined ) {
+
+					return colorsHash[ hash ];
+
+				}
+
+				colorsHash[ hash ] = colors.length;
+				colors.push( color.getHex() );
+
+				return colorsHash[ hash ];
+
+			}
+
+			function getUvIndex( uv ) {
+
+				var hash = uv.x.toString() + uv.y.toString();
+
+				if ( uvsHash[ hash ] !== undefined ) {
+
+					return uvsHash[ hash ];
+
+				}
+
+				uvsHash[ hash ] = uvs.length / 2;
+				uvs.push( uv.x, uv.y );
+
+				return uvsHash[ hash ];
+
+			}
+
+			data.data = {};
+
+			data.data.vertices = vertices;
+			data.data.normals = normals;
+			if ( colors.length > 0 ) data.data.colors = colors;
+			if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility
+			data.data.faces = faces;
+
+			return data;
+
+		},
+
+		clone: function () {
+
+			/*
+			 // Handle primitives
+
+			 var parameters = this.parameters;
+
+			 if ( parameters !== undefined ) {
+
+			 var values = [];
+
+			 for ( var key in parameters ) {
+
+			 values.push( parameters[ key ] );
+
+			 }
+
+			 var geometry = Object.create( this.constructor.prototype );
+			 this.constructor.apply( geometry, values );
+			 return geometry;
+
+			 }
+
+			 return new this.constructor().copy( this );
+			 */
+
+			return new Geometry().copy( this );
+
+		},
+
+		copy: function ( source ) {
+
+			var i, il, j, jl, k, kl;
+
+			// reset
+
+			this.vertices = [];
+			this.colors = [];
+			this.faces = [];
+			this.faceVertexUvs = [[]];
+			this.morphTargets = [];
+			this.morphNormals = [];
+			this.skinWeights = [];
+			this.skinIndices = [];
+			this.lineDistances = [];
+			this.boundingBox = null;
+			this.boundingSphere = null;
+
+			// name
+
+			this.name = source.name;
+
+			// vertices
+
+			var vertices = source.vertices;
+
+			for ( i = 0, il = vertices.length; i < il; i ++ ) {
+
+				this.vertices.push( vertices[ i ].clone() );
+
+			}
+
+			// colors
+
+			var colors = source.colors;
+
+			for ( i = 0, il = colors.length; i < il; i ++ ) {
+
+				this.colors.push( colors[ i ].clone() );
+
+			}
+
+			// faces
+
+			var faces = source.faces;
+
+			for ( i = 0, il = faces.length; i < il; i ++ ) {
+
+				this.faces.push( faces[ i ].clone() );
+
+			}
+
+			// face vertex uvs
+
+			for ( i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {
+
+				var faceVertexUvs = source.faceVertexUvs[ i ];
+
+				if ( this.faceVertexUvs[ i ] === undefined ) {
+
+					this.faceVertexUvs[ i ] = [];
+
+				}
+
+				for ( j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {
+
+					var uvs = faceVertexUvs[ j ], uvsCopy = [];
+
+					for ( k = 0, kl = uvs.length; k < kl; k ++ ) {
+
+						var uv = uvs[ k ];
+
+						uvsCopy.push( uv.clone() );
+
+					}
+
+					this.faceVertexUvs[ i ].push( uvsCopy );
+
+				}
+
+			}
+
+			// morph targets
+
+			var morphTargets = source.morphTargets;
+
+			for ( i = 0, il = morphTargets.length; i < il; i ++ ) {
+
+				var morphTarget = {};
+				morphTarget.name = morphTargets[ i ].name;
+
+				// vertices
+
+				if ( morphTargets[ i ].vertices !== undefined ) {
+
+					morphTarget.vertices = [];
+
+					for ( j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) {
+
+						morphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() );
+
+					}
+
+				}
+
+				// normals
+
+				if ( morphTargets[ i ].normals !== undefined ) {
+
+					morphTarget.normals = [];
+
+					for ( j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) {
+
+						morphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() );
+
+					}
+
+				}
+
+				this.morphTargets.push( morphTarget );
+
+			}
+
+			// morph normals
+
+			var morphNormals = source.morphNormals;
+
+			for ( i = 0, il = morphNormals.length; i < il; i ++ ) {
+
+				var morphNormal = {};
+
+				// vertex normals
+
+				if ( morphNormals[ i ].vertexNormals !== undefined ) {
+
+					morphNormal.vertexNormals = [];
+
+					for ( j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) {
+
+						var srcVertexNormal = morphNormals[ i ].vertexNormals[ j ];
+						var destVertexNormal = {};
+
+						destVertexNormal.a = srcVertexNormal.a.clone();
+						destVertexNormal.b = srcVertexNormal.b.clone();
+						destVertexNormal.c = srcVertexNormal.c.clone();
+
+						morphNormal.vertexNormals.push( destVertexNormal );
+
+					}
+
+				}
+
+				// face normals
+
+				if ( morphNormals[ i ].faceNormals !== undefined ) {
+
+					morphNormal.faceNormals = [];
+
+					for ( j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) {
+
+						morphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() );
+
+					}
+
+				}
+
+				this.morphNormals.push( morphNormal );
+
+			}
+
+			// skin weights
+
+			var skinWeights = source.skinWeights;
+
+			for ( i = 0, il = skinWeights.length; i < il; i ++ ) {
+
+				this.skinWeights.push( skinWeights[ i ].clone() );
+
+			}
+
+			// skin indices
+
+			var skinIndices = source.skinIndices;
+
+			for ( i = 0, il = skinIndices.length; i < il; i ++ ) {
+
+				this.skinIndices.push( skinIndices[ i ].clone() );
+
+			}
+
+			// line distances
+
+			var lineDistances = source.lineDistances;
+
+			for ( i = 0, il = lineDistances.length; i < il; i ++ ) {
+
+				this.lineDistances.push( lineDistances[ i ] );
+
+			}
+
+			// bounding box
+
+			var boundingBox = source.boundingBox;
+
+			if ( boundingBox !== null ) {
+
+				this.boundingBox = boundingBox.clone();
+
+			}
+
+			// bounding sphere
+
+			var boundingSphere = source.boundingSphere;
+
+			if ( boundingSphere !== null ) {
+
+				this.boundingSphere = boundingSphere.clone();
+
+			}
+
+			// update flags
+
+			this.elementsNeedUpdate = source.elementsNeedUpdate;
+			this.verticesNeedUpdate = source.verticesNeedUpdate;
+			this.uvsNeedUpdate = source.uvsNeedUpdate;
+			this.normalsNeedUpdate = source.normalsNeedUpdate;
+			this.colorsNeedUpdate = source.colorsNeedUpdate;
+			this.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate;
+			this.groupsNeedUpdate = source.groupsNeedUpdate;
+
+			return this;
+
+		},
+
+		dispose: function () {
+
+			this.dispatchEvent( { type: 'dispose' } );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function BufferAttribute( array, itemSize, normalized ) {
+
+		if ( Array.isArray( array ) ) {
+
+			throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
+
+		}
+
+		this.name = '';
+
+		this.array = array;
+		this.itemSize = itemSize;
+		this.count = array !== undefined ? array.length / itemSize : 0;
+		this.normalized = normalized === true;
+
+		this.dynamic = false;
+		this.updateRange = { offset: 0, count: - 1 };
+
+		this.version = 0;
+
+	}
+
+	Object.defineProperty( BufferAttribute.prototype, 'needsUpdate', {
+
+		set: function ( value ) {
+
+			if ( value === true ) this.version ++;
+
+		}
+
+	} );
+
+	Object.assign( BufferAttribute.prototype, {
+
+		isBufferAttribute: true,
+
+		onUploadCallback: function () {},
+
+		setArray: function ( array ) {
+
+			if ( Array.isArray( array ) ) {
+
+				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
+
+			}
+
+			this.count = array !== undefined ? array.length / this.itemSize : 0;
+			this.array = array;
+
+			return this;
+
+		},
+
+		setDynamic: function ( value ) {
+
+			this.dynamic = value;
+
+			return this;
+
+		},
+
+		copy: function ( source ) {
+
+			this.name = source.name;
+			this.array = new source.array.constructor( source.array );
+			this.itemSize = source.itemSize;
+			this.count = source.count;
+			this.normalized = source.normalized;
+
+			this.dynamic = source.dynamic;
+
+			return this;
+
+		},
+
+		copyAt: function ( index1, attribute, index2 ) {
+
+			index1 *= this.itemSize;
+			index2 *= attribute.itemSize;
+
+			for ( var i = 0, l = this.itemSize; i < l; i ++ ) {
+
+				this.array[ index1 + i ] = attribute.array[ index2 + i ];
+
+			}
+
+			return this;
+
+		},
+
+		copyArray: function ( array ) {
+
+			this.array.set( array );
+
+			return this;
+
+		},
+
+		copyColorsArray: function ( colors ) {
+
+			var array = this.array, offset = 0;
+
+			for ( var i = 0, l = colors.length; i < l; i ++ ) {
+
+				var color = colors[ i ];
+
+				if ( color === undefined ) {
+
+					console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );
+					color = new Color();
+
+				}
+
+				array[ offset ++ ] = color.r;
+				array[ offset ++ ] = color.g;
+				array[ offset ++ ] = color.b;
+
+			}
+
+			return this;
+
+		},
+
+		copyVector2sArray: function ( vectors ) {
+
+			var array = this.array, offset = 0;
+
+			for ( var i = 0, l = vectors.length; i < l; i ++ ) {
+
+				var vector = vectors[ i ];
+
+				if ( vector === undefined ) {
+
+					console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );
+					vector = new Vector2();
+
+				}
+
+				array[ offset ++ ] = vector.x;
+				array[ offset ++ ] = vector.y;
+
+			}
+
+			return this;
+
+		},
+
+		copyVector3sArray: function ( vectors ) {
+
+			var array = this.array, offset = 0;
+
+			for ( var i = 0, l = vectors.length; i < l; i ++ ) {
+
+				var vector = vectors[ i ];
+
+				if ( vector === undefined ) {
+
+					console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );
+					vector = new Vector3();
+
+				}
+
+				array[ offset ++ ] = vector.x;
+				array[ offset ++ ] = vector.y;
+				array[ offset ++ ] = vector.z;
+
+			}
+
+			return this;
+
+		},
+
+		copyVector4sArray: function ( vectors ) {
+
+			var array = this.array, offset = 0;
+
+			for ( var i = 0, l = vectors.length; i < l; i ++ ) {
+
+				var vector = vectors[ i ];
+
+				if ( vector === undefined ) {
+
+					console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );
+					vector = new Vector4();
+
+				}
+
+				array[ offset ++ ] = vector.x;
+				array[ offset ++ ] = vector.y;
+				array[ offset ++ ] = vector.z;
+				array[ offset ++ ] = vector.w;
+
+			}
+
+			return this;
+
+		},
+
+		set: function ( value, offset ) {
+
+			if ( offset === undefined ) offset = 0;
+
+			this.array.set( value, offset );
+
+			return this;
+
+		},
+
+		getX: function ( index ) {
+
+			return this.array[ index * this.itemSize ];
+
+		},
+
+		setX: function ( index, x ) {
+
+			this.array[ index * this.itemSize ] = x;
+
+			return this;
+
+		},
+
+		getY: function ( index ) {
+
+			return this.array[ index * this.itemSize + 1 ];
+
+		},
+
+		setY: function ( index, y ) {
+
+			this.array[ index * this.itemSize + 1 ] = y;
+
+			return this;
+
+		},
+
+		getZ: function ( index ) {
+
+			return this.array[ index * this.itemSize + 2 ];
+
+		},
+
+		setZ: function ( index, z ) {
+
+			this.array[ index * this.itemSize + 2 ] = z;
+
+			return this;
+
+		},
+
+		getW: function ( index ) {
+
+			return this.array[ index * this.itemSize + 3 ];
+
+		},
+
+		setW: function ( index, w ) {
+
+			this.array[ index * this.itemSize + 3 ] = w;
+
+			return this;
+
+		},
+
+		setXY: function ( index, x, y ) {
+
+			index *= this.itemSize;
+
+			this.array[ index + 0 ] = x;
+			this.array[ index + 1 ] = y;
+
+			return this;
+
+		},
+
+		setXYZ: function ( index, x, y, z ) {
+
+			index *= this.itemSize;
+
+			this.array[ index + 0 ] = x;
+			this.array[ index + 1 ] = y;
+			this.array[ index + 2 ] = z;
+
+			return this;
+
+		},
+
+		setXYZW: function ( index, x, y, z, w ) {
+
+			index *= this.itemSize;
+
+			this.array[ index + 0 ] = x;
+			this.array[ index + 1 ] = y;
+			this.array[ index + 2 ] = z;
+			this.array[ index + 3 ] = w;
+
+			return this;
+
+		},
+
+		onUpload: function ( callback ) {
+
+			this.onUploadCallback = callback;
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor( this.array, this.itemSize ).copy( this );
+
+		},
+
+		toJSON: function () {
+
+			return {
+				itemSize: this.itemSize,
+				type: this.array.constructor.name,
+				array: Array.prototype.slice.call( this.array ),
+				normalized: this.normalized
+			};
+
+		}
+
+	} );
+
+	//
+
+	function Int8BufferAttribute( array, itemSize, normalized ) {
+
+		BufferAttribute.call( this, new Int8Array( array ), itemSize, normalized );
+
+	}
+
+	Int8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+	Int8BufferAttribute.prototype.constructor = Int8BufferAttribute;
+
+
+	function Uint8BufferAttribute( array, itemSize, normalized ) {
+
+		BufferAttribute.call( this, new Uint8Array( array ), itemSize, normalized );
+
+	}
+
+	Uint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+	Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;
+
+
+	function Uint8ClampedBufferAttribute( array, itemSize, normalized ) {
+
+		BufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize, normalized );
+
+	}
+
+	Uint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+	Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;
+
+
+	function Int16BufferAttribute( array, itemSize, normalized ) {
+
+		BufferAttribute.call( this, new Int16Array( array ), itemSize, normalized );
+
+	}
+
+	Int16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+	Int16BufferAttribute.prototype.constructor = Int16BufferAttribute;
+
+
+	function Uint16BufferAttribute( array, itemSize, normalized ) {
+
+		BufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized );
+
+	}
+
+	Uint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+	Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;
+
+
+	function Int32BufferAttribute( array, itemSize, normalized ) {
+
+		BufferAttribute.call( this, new Int32Array( array ), itemSize, normalized );
+
+	}
+
+	Int32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+	Int32BufferAttribute.prototype.constructor = Int32BufferAttribute;
+
+
+	function Uint32BufferAttribute( array, itemSize, normalized ) {
+
+		BufferAttribute.call( this, new Uint32Array( array ), itemSize, normalized );
+
+	}
+
+	Uint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+	Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;
+
+
+	function Float32BufferAttribute( array, itemSize, normalized ) {
+
+		BufferAttribute.call( this, new Float32Array( array ), itemSize, normalized );
+
+	}
+
+	Float32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+	Float32BufferAttribute.prototype.constructor = Float32BufferAttribute;
+
+
+	function Float64BufferAttribute( array, itemSize, normalized ) {
+
+		BufferAttribute.call( this, new Float64Array( array ), itemSize, normalized );
+
+	}
+
+	Float64BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+	Float64BufferAttribute.prototype.constructor = Float64BufferAttribute;
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function DirectGeometry() {
+
+		this.vertices = [];
+		this.normals = [];
+		this.colors = [];
+		this.uvs = [];
+		this.uvs2 = [];
+
+		this.groups = [];
+
+		this.morphTargets = {};
+
+		this.skinWeights = [];
+		this.skinIndices = [];
+
+		// this.lineDistances = [];
+
+		this.boundingBox = null;
+		this.boundingSphere = null;
+
+		// update flags
+
+		this.verticesNeedUpdate = false;
+		this.normalsNeedUpdate = false;
+		this.colorsNeedUpdate = false;
+		this.uvsNeedUpdate = false;
+		this.groupsNeedUpdate = false;
+
+	}
+
+	Object.assign( DirectGeometry.prototype, {
+
+		computeGroups: function ( geometry ) {
+
+			var group;
+			var groups = [];
+			var materialIndex = undefined;
+
+			var faces = geometry.faces;
+
+			for ( var i = 0; i < faces.length; i ++ ) {
+
+				var face = faces[ i ];
+
+				// materials
+
+				if ( face.materialIndex !== materialIndex ) {
+
+					materialIndex = face.materialIndex;
+
+					if ( group !== undefined ) {
+
+						group.count = ( i * 3 ) - group.start;
+						groups.push( group );
+
+					}
+
+					group = {
+						start: i * 3,
+						materialIndex: materialIndex
+					};
+
+				}
+
+			}
+
+			if ( group !== undefined ) {
+
+				group.count = ( i * 3 ) - group.start;
+				groups.push( group );
+
+			}
+
+			this.groups = groups;
+
+		},
+
+		fromGeometry: function ( geometry ) {
+
+			var faces = geometry.faces;
+			var vertices = geometry.vertices;
+			var faceVertexUvs = geometry.faceVertexUvs;
+
+			var hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;
+			var hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;
+
+			// morphs
+
+			var morphTargets = geometry.morphTargets;
+			var morphTargetsLength = morphTargets.length;
+
+			var morphTargetsPosition;
+
+			if ( morphTargetsLength > 0 ) {
+
+				morphTargetsPosition = [];
+
+				for ( var i = 0; i < morphTargetsLength; i ++ ) {
+
+					morphTargetsPosition[ i ] = {
+						name: morphTargets[ i ].name,
+					 	data: []
+					};
+
+				}
+
+				this.morphTargets.position = morphTargetsPosition;
+
+			}
+
+			var morphNormals = geometry.morphNormals;
+			var morphNormalsLength = morphNormals.length;
+
+			var morphTargetsNormal;
+
+			if ( morphNormalsLength > 0 ) {
+
+				morphTargetsNormal = [];
+
+				for ( var i = 0; i < morphNormalsLength; i ++ ) {
+
+					morphTargetsNormal[ i ] = {
+						name: morphNormals[ i ].name,
+					 	data: []
+					};
+
+				}
+
+				this.morphTargets.normal = morphTargetsNormal;
+
+			}
+
+			// skins
+
+			var skinIndices = geometry.skinIndices;
+			var skinWeights = geometry.skinWeights;
+
+			var hasSkinIndices = skinIndices.length === vertices.length;
+			var hasSkinWeights = skinWeights.length === vertices.length;
+
+			//
+
+			if ( vertices.length > 0 && faces.length === 0 ) {
+
+				console.error( 'THREE.DirectGeometry: Faceless geometries are not supported.' );
+
+			}
+
+			for ( var i = 0; i < faces.length; i ++ ) {
+
+				var face = faces[ i ];
+
+				this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );
+
+				var vertexNormals = face.vertexNormals;
+
+				if ( vertexNormals.length === 3 ) {
+
+					this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );
+
+				} else {
+
+					var normal = face.normal;
+
+					this.normals.push( normal, normal, normal );
+
+				}
+
+				var vertexColors = face.vertexColors;
+
+				if ( vertexColors.length === 3 ) {
+
+					this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );
+
+				} else {
+
+					var color = face.color;
+
+					this.colors.push( color, color, color );
+
+				}
+
+				if ( hasFaceVertexUv === true ) {
+
+					var vertexUvs = faceVertexUvs[ 0 ][ i ];
+
+					if ( vertexUvs !== undefined ) {
+
+						this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
+
+					} else {
+
+						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );
+
+						this.uvs.push( new Vector2(), new Vector2(), new Vector2() );
+
+					}
+
+				}
+
+				if ( hasFaceVertexUv2 === true ) {
+
+					var vertexUvs = faceVertexUvs[ 1 ][ i ];
+
+					if ( vertexUvs !== undefined ) {
+
+						this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
+
+					} else {
+
+						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );
+
+						this.uvs2.push( new Vector2(), new Vector2(), new Vector2() );
+
+					}
+
+				}
+
+				// morphs
+
+				for ( var j = 0; j < morphTargetsLength; j ++ ) {
+
+					var morphTarget = morphTargets[ j ].vertices;
+
+					morphTargetsPosition[ j ].data.push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );
+
+				}
+
+				for ( var j = 0; j < morphNormalsLength; j ++ ) {
+
+					var morphNormal = morphNormals[ j ].vertexNormals[ i ];
+
+					morphTargetsNormal[ j ].data.push( morphNormal.a, morphNormal.b, morphNormal.c );
+
+				}
+
+				// skins
+
+				if ( hasSkinIndices ) {
+
+					this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );
+
+				}
+
+				if ( hasSkinWeights ) {
+
+					this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );
+
+				}
+
+			}
+
+			this.computeGroups( geometry );
+
+			this.verticesNeedUpdate = geometry.verticesNeedUpdate;
+			this.normalsNeedUpdate = geometry.normalsNeedUpdate;
+			this.colorsNeedUpdate = geometry.colorsNeedUpdate;
+			this.uvsNeedUpdate = geometry.uvsNeedUpdate;
+			this.groupsNeedUpdate = geometry.groupsNeedUpdate;
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function arrayMax( array ) {
+
+		if ( array.length === 0 ) return - Infinity;
+
+		var max = array[ 0 ];
+
+		for ( var i = 1, l = array.length; i < l; ++ i ) {
+
+			if ( array[ i ] > max ) max = array[ i ];
+
+		}
+
+		return max;
+
+	}
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	var bufferGeometryId = 1; // BufferGeometry uses odd numbers as Id
+
+	function BufferGeometry() {
+
+		Object.defineProperty( this, 'id', { value: bufferGeometryId += 2 } );
+
+		this.uuid = _Math.generateUUID();
+
+		this.name = '';
+		this.type = 'BufferGeometry';
+
+		this.index = null;
+		this.attributes = {};
+
+		this.morphAttributes = {};
+
+		this.groups = [];
+
+		this.boundingBox = null;
+		this.boundingSphere = null;
+
+		this.drawRange = { start: 0, count: Infinity };
+
+		this.userData = {};
+
+	}
+
+	BufferGeometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
+
+		constructor: BufferGeometry,
+
+		isBufferGeometry: true,
+
+		getIndex: function () {
+
+			return this.index;
+
+		},
+
+		setIndex: function ( index ) {
+
+			if ( Array.isArray( index ) ) {
+
+				this.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );
+
+			} else {
+
+				this.index = index;
+
+			}
+
+		},
+
+		addAttribute: function ( name, attribute ) {
+
+			if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {
+
+				console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );
+
+				return this.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );
+
+			}
+
+			if ( name === 'index' ) {
+
+				console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );
+				this.setIndex( attribute );
+
+				return this;
+
+			}
+
+			this.attributes[ name ] = attribute;
+
+			return this;
+
+		},
+
+		getAttribute: function ( name ) {
+
+			return this.attributes[ name ];
+
+		},
+
+		removeAttribute: function ( name ) {
+
+			delete this.attributes[ name ];
+
+			return this;
+
+		},
+
+		addGroup: function ( start, count, materialIndex ) {
+
+			this.groups.push( {
+
+				start: start,
+				count: count,
+				materialIndex: materialIndex !== undefined ? materialIndex : 0
+
+			} );
+
+		},
+
+		clearGroups: function () {
+
+			this.groups = [];
+
+		},
+
+		setDrawRange: function ( start, count ) {
+
+			this.drawRange.start = start;
+			this.drawRange.count = count;
+
+		},
+
+		applyMatrix: function ( matrix ) {
+
+			var position = this.attributes.position;
+
+			if ( position !== undefined ) {
+
+				matrix.applyToBufferAttribute( position );
+				position.needsUpdate = true;
+
+			}
+
+			var normal = this.attributes.normal;
+
+			if ( normal !== undefined ) {
+
+				var normalMatrix = new Matrix3().getNormalMatrix( matrix );
+
+				normalMatrix.applyToBufferAttribute( normal );
+				normal.needsUpdate = true;
+
+			}
+
+			var tangent = this.attributes.tangent;
+
+			if ( tangent !== undefined ) {
+
+				var normalMatrix = new Matrix3().getNormalMatrix( matrix );
+
+				// Tangent is vec4, but the '.w' component is a sign value (+1/-1).
+				normalMatrix.applyToBufferAttribute( tangent );
+				tangent.needsUpdate = true;
+
+			}
+
+			if ( this.boundingBox !== null ) {
+
+				this.computeBoundingBox();
+
+			}
+
+			if ( this.boundingSphere !== null ) {
+
+				this.computeBoundingSphere();
+
+			}
+
+			return this;
+
+		},
+
+		rotateX: function () {
+
+			// rotate geometry around world x-axis
+
+			var m1 = new Matrix4();
+
+			return function rotateX( angle ) {
+
+				m1.makeRotationX( angle );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		rotateY: function () {
+
+			// rotate geometry around world y-axis
+
+			var m1 = new Matrix4();
+
+			return function rotateY( angle ) {
+
+				m1.makeRotationY( angle );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		rotateZ: function () {
+
+			// rotate geometry around world z-axis
+
+			var m1 = new Matrix4();
+
+			return function rotateZ( angle ) {
+
+				m1.makeRotationZ( angle );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		translate: function () {
+
+			// translate geometry
+
+			var m1 = new Matrix4();
+
+			return function translate( x, y, z ) {
+
+				m1.makeTranslation( x, y, z );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		scale: function () {
+
+			// scale geometry
+
+			var m1 = new Matrix4();
+
+			return function scale( x, y, z ) {
+
+				m1.makeScale( x, y, z );
+
+				this.applyMatrix( m1 );
+
+				return this;
+
+			};
+
+		}(),
+
+		lookAt: function () {
+
+			var obj = new Object3D();
+
+			return function lookAt( vector ) {
+
+				obj.lookAt( vector );
+
+				obj.updateMatrix();
+
+				this.applyMatrix( obj.matrix );
+
+			};
+
+		}(),
+
+		center: function () {
+
+			var offset = new Vector3();
+
+			return function center() {
+
+				this.computeBoundingBox();
+
+				this.boundingBox.getCenter( offset ).negate();
+
+				this.translate( offset.x, offset.y, offset.z );
+
+				return this;
+
+			};
+
+		}(),
+
+		setFromObject: function ( object ) {
+
+			// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );
+
+			var geometry = object.geometry;
+
+			if ( object.isPoints || object.isLine ) {
+
+				var positions = new Float32BufferAttribute( geometry.vertices.length * 3, 3 );
+				var colors = new Float32BufferAttribute( geometry.colors.length * 3, 3 );
+
+				this.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );
+				this.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );
+
+				if ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {
+
+					var lineDistances = new Float32BufferAttribute( geometry.lineDistances.length, 1 );
+
+					this.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );
+
+				}
+
+				if ( geometry.boundingSphere !== null ) {
+
+					this.boundingSphere = geometry.boundingSphere.clone();
+
+				}
+
+				if ( geometry.boundingBox !== null ) {
+
+					this.boundingBox = geometry.boundingBox.clone();
+
+				}
+
+			} else if ( object.isMesh ) {
+
+				if ( geometry && geometry.isGeometry ) {
+
+					this.fromGeometry( geometry );
+
+				}
+
+			}
+
+			return this;
+
+		},
+
+		setFromPoints: function ( points ) {
+
+			var position = [];
+
+			for ( var i = 0, l = points.length; i < l; i ++ ) {
+
+				var point = points[ i ];
+				position.push( point.x, point.y, point.z || 0 );
+
+			}
+
+			this.addAttribute( 'position', new Float32BufferAttribute( position, 3 ) );
+
+			return this;
+
+		},
+
+		updateFromObject: function ( object ) {
+
+			var geometry = object.geometry;
+
+			if ( object.isMesh ) {
+
+				var direct = geometry.__directGeometry;
+
+				if ( geometry.elementsNeedUpdate === true ) {
+
+					direct = undefined;
+					geometry.elementsNeedUpdate = false;
+
+				}
+
+				if ( direct === undefined ) {
+
+					return this.fromGeometry( geometry );
+
+				}
+
+				direct.verticesNeedUpdate = geometry.verticesNeedUpdate;
+				direct.normalsNeedUpdate = geometry.normalsNeedUpdate;
+				direct.colorsNeedUpdate = geometry.colorsNeedUpdate;
+				direct.uvsNeedUpdate = geometry.uvsNeedUpdate;
+				direct.groupsNeedUpdate = geometry.groupsNeedUpdate;
+
+				geometry.verticesNeedUpdate = false;
+				geometry.normalsNeedUpdate = false;
+				geometry.colorsNeedUpdate = false;
+				geometry.uvsNeedUpdate = false;
+				geometry.groupsNeedUpdate = false;
+
+				geometry = direct;
+
+			}
+
+			var attribute;
+
+			if ( geometry.verticesNeedUpdate === true ) {
+
+				attribute = this.attributes.position;
+
+				if ( attribute !== undefined ) {
+
+					attribute.copyVector3sArray( geometry.vertices );
+					attribute.needsUpdate = true;
+
+				}
+
+				geometry.verticesNeedUpdate = false;
+
+			}
+
+			if ( geometry.normalsNeedUpdate === true ) {
+
+				attribute = this.attributes.normal;
+
+				if ( attribute !== undefined ) {
+
+					attribute.copyVector3sArray( geometry.normals );
+					attribute.needsUpdate = true;
+
+				}
+
+				geometry.normalsNeedUpdate = false;
+
+			}
+
+			if ( geometry.colorsNeedUpdate === true ) {
+
+				attribute = this.attributes.color;
+
+				if ( attribute !== undefined ) {
+
+					attribute.copyColorsArray( geometry.colors );
+					attribute.needsUpdate = true;
+
+				}
+
+				geometry.colorsNeedUpdate = false;
+
+			}
+
+			if ( geometry.uvsNeedUpdate ) {
+
+				attribute = this.attributes.uv;
+
+				if ( attribute !== undefined ) {
+
+					attribute.copyVector2sArray( geometry.uvs );
+					attribute.needsUpdate = true;
+
+				}
+
+				geometry.uvsNeedUpdate = false;
+
+			}
+
+			if ( geometry.lineDistancesNeedUpdate ) {
+
+				attribute = this.attributes.lineDistance;
+
+				if ( attribute !== undefined ) {
+
+					attribute.copyArray( geometry.lineDistances );
+					attribute.needsUpdate = true;
+
+				}
+
+				geometry.lineDistancesNeedUpdate = false;
+
+			}
+
+			if ( geometry.groupsNeedUpdate ) {
+
+				geometry.computeGroups( object.geometry );
+				this.groups = geometry.groups;
+
+				geometry.groupsNeedUpdate = false;
+
+			}
+
+			return this;
+
+		},
+
+		fromGeometry: function ( geometry ) {
+
+			geometry.__directGeometry = new DirectGeometry().fromGeometry( geometry );
+
+			return this.fromDirectGeometry( geometry.__directGeometry );
+
+		},
+
+		fromDirectGeometry: function ( geometry ) {
+
+			var positions = new Float32Array( geometry.vertices.length * 3 );
+			this.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );
+
+			if ( geometry.normals.length > 0 ) {
+
+				var normals = new Float32Array( geometry.normals.length * 3 );
+				this.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );
+
+			}
+
+			if ( geometry.colors.length > 0 ) {
+
+				var colors = new Float32Array( geometry.colors.length * 3 );
+				this.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );
+
+			}
+
+			if ( geometry.uvs.length > 0 ) {
+
+				var uvs = new Float32Array( geometry.uvs.length * 2 );
+				this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );
+
+			}
+
+			if ( geometry.uvs2.length > 0 ) {
+
+				var uvs2 = new Float32Array( geometry.uvs2.length * 2 );
+				this.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );
+
+			}
+
+			// groups
+
+			this.groups = geometry.groups;
+
+			// morphs
+
+			for ( var name in geometry.morphTargets ) {
+
+				var array = [];
+				var morphTargets = geometry.morphTargets[ name ];
+
+				for ( var i = 0, l = morphTargets.length; i < l; i ++ ) {
+
+					var morphTarget = morphTargets[ i ];
+
+					var attribute = new Float32BufferAttribute( morphTarget.data.length * 3, 3 );
+					attribute.name = morphTarget.name;
+
+					array.push( attribute.copyVector3sArray( morphTarget.data ) );
+
+				}
+
+				this.morphAttributes[ name ] = array;
+
+			}
+
+			// skinning
+
+			if ( geometry.skinIndices.length > 0 ) {
+
+				var skinIndices = new Float32BufferAttribute( geometry.skinIndices.length * 4, 4 );
+				this.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );
+
+			}
+
+			if ( geometry.skinWeights.length > 0 ) {
+
+				var skinWeights = new Float32BufferAttribute( geometry.skinWeights.length * 4, 4 );
+				this.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );
+
+			}
+
+			//
+
+			if ( geometry.boundingSphere !== null ) {
+
+				this.boundingSphere = geometry.boundingSphere.clone();
+
+			}
+
+			if ( geometry.boundingBox !== null ) {
+
+				this.boundingBox = geometry.boundingBox.clone();
+
+			}
+
+			return this;
+
+		},
+
+		computeBoundingBox: function () {
+
+			var box = new Box3();
+
+			return function computeBoundingBox() {
+
+				if ( this.boundingBox === null ) {
+
+					this.boundingBox = new Box3();
+
+				}
+
+				var position = this.attributes.position;
+				var morphAttributesPosition = this.morphAttributes.position;
+
+				if ( position !== undefined ) {
+
+					this.boundingBox.setFromBufferAttribute( position );
+
+					// process morph attributes if present
+
+					if ( morphAttributesPosition ) {
+
+						for ( var i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {
+
+							var morphAttribute = morphAttributesPosition[ i ];
+							box.setFromBufferAttribute( morphAttribute );
+
+							this.boundingBox.expandByPoint( box.min );
+							this.boundingBox.expandByPoint( box.max );
+
+						}
+
+					}
+
+				} else {
+
+					this.boundingBox.makeEmpty();
+
+				}
+
+				if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {
+
+					console.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this );
+
+				}
+
+			};
+
+		}(),
+
+		computeBoundingSphere: function () {
+
+			var box = new Box3();
+			var boxMorphTargets = new Box3();
+			var vector = new Vector3();
+
+			return function computeBoundingSphere() {
+
+				if ( this.boundingSphere === null ) {
+
+					this.boundingSphere = new Sphere();
+
+				}
+
+				var position = this.attributes.position;
+				var morphAttributesPosition = this.morphAttributes.position;
+
+				if ( position ) {
+
+					// first, find the center of the bounding sphere
+
+					var center = this.boundingSphere.center;
+
+					box.setFromBufferAttribute( position );
+
+					// process morph attributes if present
+
+					if ( morphAttributesPosition ) {
+
+						for ( var i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {
+
+							var morphAttribute = morphAttributesPosition[ i ];
+							boxMorphTargets.setFromBufferAttribute( morphAttribute );
+
+							box.expandByPoint( boxMorphTargets.min );
+							box.expandByPoint( boxMorphTargets.max );
+
+						}
+
+					}
+
+					box.getCenter( center );
+
+					// second, try to find a boundingSphere with a radius smaller than the
+					// boundingSphere of the boundingBox: sqrt(3) smaller in the best case
+
+					var maxRadiusSq = 0;
+
+					for ( var i = 0, il = position.count; i < il; i ++ ) {
+
+						vector.fromBufferAttribute( position, i );
+
+						maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );
+
+					}
+
+					// process morph attributes if present
+
+					if ( morphAttributesPosition ) {
+
+						for ( var i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {
+
+							var morphAttribute = morphAttributesPosition[ i ];
+
+							for ( var j = 0, jl = morphAttribute.count; j < jl; j ++ ) {
+
+								vector.fromBufferAttribute( morphAttribute, j );
+
+								maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );
+
+							}
+
+						}
+
+					}
+
+					this.boundingSphere.radius = Math.sqrt( maxRadiusSq );
+
+					if ( isNaN( this.boundingSphere.radius ) ) {
+
+						console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this );
+
+					}
+
+				}
+
+			};
+
+		}(),
+
+		computeFaceNormals: function () {
+
+			// backwards compatibility
+
+		},
+
+		computeVertexNormals: function () {
+
+			var index = this.index;
+			var attributes = this.attributes;
+
+			if ( attributes.position ) {
+
+				var positions = attributes.position.array;
+
+				if ( attributes.normal === undefined ) {
+
+					this.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) );
+
+				} else {
+
+					// reset existing normals to zero
+
+					var array = attributes.normal.array;
+
+					for ( var i = 0, il = array.length; i < il; i ++ ) {
+
+						array[ i ] = 0;
+
+					}
+
+				}
+
+				var normals = attributes.normal.array;
+
+				var vA, vB, vC;
+				var pA = new Vector3(), pB = new Vector3(), pC = new Vector3();
+				var cb = new Vector3(), ab = new Vector3();
+
+				// indexed elements
+
+				if ( index ) {
+
+					var indices = index.array;
+
+					for ( var i = 0, il = index.count; i < il; i += 3 ) {
+
+						vA = indices[ i + 0 ] * 3;
+						vB = indices[ i + 1 ] * 3;
+						vC = indices[ i + 2 ] * 3;
+
+						pA.fromArray( positions, vA );
+						pB.fromArray( positions, vB );
+						pC.fromArray( positions, vC );
+
+						cb.subVectors( pC, pB );
+						ab.subVectors( pA, pB );
+						cb.cross( ab );
+
+						normals[ vA ] += cb.x;
+						normals[ vA + 1 ] += cb.y;
+						normals[ vA + 2 ] += cb.z;
+
+						normals[ vB ] += cb.x;
+						normals[ vB + 1 ] += cb.y;
+						normals[ vB + 2 ] += cb.z;
+
+						normals[ vC ] += cb.x;
+						normals[ vC + 1 ] += cb.y;
+						normals[ vC + 2 ] += cb.z;
+
+					}
+
+				} else {
+
+					// non-indexed elements (unconnected triangle soup)
+
+					for ( var i = 0, il = positions.length; i < il; i += 9 ) {
+
+						pA.fromArray( positions, i );
+						pB.fromArray( positions, i + 3 );
+						pC.fromArray( positions, i + 6 );
+
+						cb.subVectors( pC, pB );
+						ab.subVectors( pA, pB );
+						cb.cross( ab );
+
+						normals[ i ] = cb.x;
+						normals[ i + 1 ] = cb.y;
+						normals[ i + 2 ] = cb.z;
+
+						normals[ i + 3 ] = cb.x;
+						normals[ i + 4 ] = cb.y;
+						normals[ i + 5 ] = cb.z;
+
+						normals[ i + 6 ] = cb.x;
+						normals[ i + 7 ] = cb.y;
+						normals[ i + 8 ] = cb.z;
+
+					}
+
+				}
+
+				this.normalizeNormals();
+
+				attributes.normal.needsUpdate = true;
+
+			}
+
+		},
+
+		merge: function ( geometry, offset ) {
+
+			if ( ! ( geometry && geometry.isBufferGeometry ) ) {
+
+				console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );
+				return;
+
+			}
+
+			if ( offset === undefined ) {
+
+				offset = 0;
+
+				console.warn(
+					'THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. '
+					+ 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.'
+				);
+
+			}
+
+			var attributes = this.attributes;
+
+			for ( var key in attributes ) {
+
+				if ( geometry.attributes[ key ] === undefined ) continue;
+
+				var attribute1 = attributes[ key ];
+				var attributeArray1 = attribute1.array;
+
+				var attribute2 = geometry.attributes[ key ];
+				var attributeArray2 = attribute2.array;
+
+				var attributeOffset = attribute2.itemSize * offset;
+				var length = Math.min( attributeArray2.length, attributeArray1.length - attributeOffset );
+
+				for ( var i = 0, j = attributeOffset; i < length; i ++, j ++ ) {
+
+					attributeArray1[ j ] = attributeArray2[ i ];
+
+				}
+
+			}
+
+			return this;
+
+		},
+
+		normalizeNormals: function () {
+
+			var vector = new Vector3();
+
+			return function normalizeNormals() {
+
+				var normals = this.attributes.normal;
+
+				for ( var i = 0, il = normals.count; i < il; i ++ ) {
+
+					vector.x = normals.getX( i );
+					vector.y = normals.getY( i );
+					vector.z = normals.getZ( i );
+
+					vector.normalize();
+
+					normals.setXYZ( i, vector.x, vector.y, vector.z );
+
+				}
+
+			};
+
+		}(),
+
+		toNonIndexed: function () {
+
+			function convertBufferAttribute( attribute, indices ) {
+
+				var array = attribute.array;
+				var itemSize = attribute.itemSize;
+
+				var array2 = new array.constructor( indices.length * itemSize );
+
+				var index = 0, index2 = 0;
+
+				for ( var i = 0, l = indices.length; i < l; i ++ ) {
+
+					index = indices[ i ] * itemSize;
+
+					for ( var j = 0; j < itemSize; j ++ ) {
+
+						array2[ index2 ++ ] = array[ index ++ ];
+
+					}
+
+				}
+
+				return new BufferAttribute( array2, itemSize );
+
+			}
+
+			//
+
+			if ( this.index === null ) {
+
+				console.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' );
+				return this;
+
+			}
+
+			var geometry2 = new BufferGeometry();
+
+			var indices = this.index.array;
+			var attributes = this.attributes;
+
+			// attributes
+
+			for ( var name in attributes ) {
+
+				var attribute = attributes[ name ];
+
+				var newAttribute = convertBufferAttribute( attribute, indices );
+
+				geometry2.addAttribute( name, newAttribute );
+
+			}
+
+			// morph attributes
+
+			var morphAttributes = this.morphAttributes;
+
+			for ( name in morphAttributes ) {
+
+				var morphArray = [];
+				var morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes
+
+				for ( var i = 0, il = morphAttribute.length; i < il; i ++ ) {
+
+					var attribute = morphAttribute[ i ];
+
+					var newAttribute = convertBufferAttribute( attribute, indices );
+
+					morphArray.push( newAttribute );
+
+				}
+
+				geometry2.morphAttributes[ name ] = morphArray;
+
+			}
+
+			// groups
+
+			var groups = this.groups;
+
+			for ( var i = 0, l = groups.length; i < l; i ++ ) {
+
+				var group = groups[ i ];
+				geometry2.addGroup( group.start, group.count, group.materialIndex );
+
+			}
+
+			return geometry2;
+
+		},
+
+		toJSON: function () {
+
+			var data = {
+				metadata: {
+					version: 4.5,
+					type: 'BufferGeometry',
+					generator: 'BufferGeometry.toJSON'
+				}
+			};
+
+			// standard BufferGeometry serialization
+
+			data.uuid = this.uuid;
+			data.type = this.type;
+			if ( this.name !== '' ) data.name = this.name;
+			if ( Object.keys( this.userData ).length > 0 ) data.userData = this.userData;
+
+			if ( this.parameters !== undefined ) {
+
+				var parameters = this.parameters;
+
+				for ( var key in parameters ) {
+
+					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];
+
+				}
+
+				return data;
+
+			}
+
+			data.data = { attributes: {} };
+
+			var index = this.index;
+
+			if ( index !== null ) {
+
+				data.data.index = {
+					type: index.array.constructor.name,
+					array: Array.prototype.slice.call( index.array )
+				};
+
+			}
+
+			var attributes = this.attributes;
+
+			for ( var key in attributes ) {
+
+				var attribute = attributes[ key ];
+
+				var attributeData = attribute.toJSON();
+
+				if ( attribute.name !== '' ) attributeData.name = attribute.name;
+
+				data.data.attributes[ key ] = attributeData;
+
+			}
+
+			var morphAttributes = {};
+			var hasMorphAttributes = false;
+
+			for ( var key in this.morphAttributes ) {
+
+				var attributeArray = this.morphAttributes[ key ];
+
+				var array = [];
+
+				for ( var i = 0, il = attributeArray.length; i < il; i ++ ) {
+
+					var attribute = attributeArray[ i ];
+
+					var attributeData = attribute.toJSON();
+
+					if ( attribute.name !== '' ) attributeData.name = attribute.name;
+
+					array.push( attributeData );
+
+				}
+
+				if ( array.length > 0 ) {
+
+					morphAttributes[ key ] = array;
+
+					hasMorphAttributes = true;
+
+				}
+
+			}
+
+			if ( hasMorphAttributes ) data.data.morphAttributes = morphAttributes;
+
+			var groups = this.groups;
+
+			if ( groups.length > 0 ) {
+
+				data.data.groups = JSON.parse( JSON.stringify( groups ) );
+
+			}
+
+			var boundingSphere = this.boundingSphere;
+
+			if ( boundingSphere !== null ) {
+
+				data.data.boundingSphere = {
+					center: boundingSphere.center.toArray(),
+					radius: boundingSphere.radius
+				};
+
+			}
+
+			return data;
+
+		},
+
+		clone: function () {
+
+			/*
+			 // Handle primitives
+
+			 var parameters = this.parameters;
+
+			 if ( parameters !== undefined ) {
+
+			 var values = [];
+
+			 for ( var key in parameters ) {
+
+			 values.push( parameters[ key ] );
+
+			 }
+
+			 var geometry = Object.create( this.constructor.prototype );
+			 this.constructor.apply( geometry, values );
+			 return geometry;
+
+			 }
+
+			 return new this.constructor().copy( this );
+			 */
+
+			return new BufferGeometry().copy( this );
+
+		},
+
+		copy: function ( source ) {
+
+			var name, i, l;
+
+			// reset
+
+			this.index = null;
+			this.attributes = {};
+			this.morphAttributes = {};
+			this.groups = [];
+			this.boundingBox = null;
+			this.boundingSphere = null;
+
+			// name
+
+			this.name = source.name;
+
+			// index
+
+			var index = source.index;
+
+			if ( index !== null ) {
+
+				this.setIndex( index.clone() );
+
+			}
+
+			// attributes
+
+			var attributes = source.attributes;
+
+			for ( name in attributes ) {
+
+				var attribute = attributes[ name ];
+				this.addAttribute( name, attribute.clone() );
+
+			}
+
+			// morph attributes
+
+			var morphAttributes = source.morphAttributes;
+
+			for ( name in morphAttributes ) {
+
+				var array = [];
+				var morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes
+
+				for ( i = 0, l = morphAttribute.length; i < l; i ++ ) {
+
+					array.push( morphAttribute[ i ].clone() );
+
+				}
+
+				this.morphAttributes[ name ] = array;
+
+			}
+
+			// groups
+
+			var groups = source.groups;
+
+			for ( i = 0, l = groups.length; i < l; i ++ ) {
+
+				var group = groups[ i ];
+				this.addGroup( group.start, group.count, group.materialIndex );
+
+			}
+
+			// bounding box
+
+			var boundingBox = source.boundingBox;
+
+			if ( boundingBox !== null ) {
+
+				this.boundingBox = boundingBox.clone();
+
+			}
+
+			// bounding sphere
+
+			var boundingSphere = source.boundingSphere;
+
+			if ( boundingSphere !== null ) {
+
+				this.boundingSphere = boundingSphere.clone();
+
+			}
+
+			// draw range
+
+			this.drawRange.start = source.drawRange.start;
+			this.drawRange.count = source.drawRange.count;
+
+			// user data
+
+			this.userData = source.userData;
+
+			return this;
+
+		},
+
+		dispose: function () {
+
+			this.dispatchEvent( { type: 'dispose' } );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// BoxGeometry
+
+	function BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {
+
+		Geometry.call( this );
+
+		this.type = 'BoxGeometry';
+
+		this.parameters = {
+			width: width,
+			height: height,
+			depth: depth,
+			widthSegments: widthSegments,
+			heightSegments: heightSegments,
+			depthSegments: depthSegments
+		};
+
+		this.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) );
+		this.mergeVertices();
+
+	}
+
+	BoxGeometry.prototype = Object.create( Geometry.prototype );
+	BoxGeometry.prototype.constructor = BoxGeometry;
+
+	// BoxBufferGeometry
+
+	function BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'BoxBufferGeometry';
+
+		this.parameters = {
+			width: width,
+			height: height,
+			depth: depth,
+			widthSegments: widthSegments,
+			heightSegments: heightSegments,
+			depthSegments: depthSegments
+		};
+
+		var scope = this;
+
+		width = width || 1;
+		height = height || 1;
+		depth = depth || 1;
+
+		// segments
+
+		widthSegments = Math.floor( widthSegments ) || 1;
+		heightSegments = Math.floor( heightSegments ) || 1;
+		depthSegments = Math.floor( depthSegments ) || 1;
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		// helper variables
+
+		var numberOfVertices = 0;
+		var groupStart = 0;
+
+		// build each side of the box geometry
+
+		buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px
+		buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx
+		buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py
+		buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny
+		buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz
+		buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+		function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {
+
+			var segmentWidth = width / gridX;
+			var segmentHeight = height / gridY;
+
+			var widthHalf = width / 2;
+			var heightHalf = height / 2;
+			var depthHalf = depth / 2;
+
+			var gridX1 = gridX + 1;
+			var gridY1 = gridY + 1;
+
+			var vertexCounter = 0;
+			var groupCount = 0;
+
+			var ix, iy;
+
+			var vector = new Vector3();
+
+			// generate vertices, normals and uvs
+
+			for ( iy = 0; iy < gridY1; iy ++ ) {
+
+				var y = iy * segmentHeight - heightHalf;
+
+				for ( ix = 0; ix < gridX1; ix ++ ) {
+
+					var x = ix * segmentWidth - widthHalf;
+
+					// set values to correct vector component
+
+					vector[ u ] = x * udir;
+					vector[ v ] = y * vdir;
+					vector[ w ] = depthHalf;
+
+					// now apply vector to vertex buffer
+
+					vertices.push( vector.x, vector.y, vector.z );
+
+					// set values to correct vector component
+
+					vector[ u ] = 0;
+					vector[ v ] = 0;
+					vector[ w ] = depth > 0 ? 1 : - 1;
+
+					// now apply vector to normal buffer
+
+					normals.push( vector.x, vector.y, vector.z );
+
+					// uvs
+
+					uvs.push( ix / gridX );
+					uvs.push( 1 - ( iy / gridY ) );
+
+					// counters
+
+					vertexCounter += 1;
+
+				}
+
+			}
+
+			// indices
+
+			// 1. you need three indices to draw a single face
+			// 2. a single segment consists of two faces
+			// 3. so we need to generate six (2*3) indices per segment
+
+			for ( iy = 0; iy < gridY; iy ++ ) {
+
+				for ( ix = 0; ix < gridX; ix ++ ) {
+
+					var a = numberOfVertices + ix + gridX1 * iy;
+					var b = numberOfVertices + ix + gridX1 * ( iy + 1 );
+					var c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );
+					var d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;
+
+					// faces
+
+					indices.push( a, b, d );
+					indices.push( b, c, d );
+
+					// increase counter
+
+					groupCount += 6;
+
+				}
+
+			}
+
+			// add a group to the geometry. this will ensure multi material support
+
+			scope.addGroup( groupStart, groupCount, materialIndex );
+
+			// calculate new start value for groups
+
+			groupStart += groupCount;
+
+			// update total number of vertices
+
+			numberOfVertices += vertexCounter;
+
+		}
+
+	}
+
+	BoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	BoxBufferGeometry.prototype.constructor = BoxBufferGeometry;
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// PlaneGeometry
+
+	function PlaneGeometry( width, height, widthSegments, heightSegments ) {
+
+		Geometry.call( this );
+
+		this.type = 'PlaneGeometry';
+
+		this.parameters = {
+			width: width,
+			height: height,
+			widthSegments: widthSegments,
+			heightSegments: heightSegments
+		};
+
+		this.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );
+		this.mergeVertices();
+
+	}
+
+	PlaneGeometry.prototype = Object.create( Geometry.prototype );
+	PlaneGeometry.prototype.constructor = PlaneGeometry;
+
+	// PlaneBufferGeometry
+
+	function PlaneBufferGeometry( width, height, widthSegments, heightSegments ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'PlaneBufferGeometry';
+
+		this.parameters = {
+			width: width,
+			height: height,
+			widthSegments: widthSegments,
+			heightSegments: heightSegments
+		};
+
+		width = width || 1;
+		height = height || 1;
+
+		var width_half = width / 2;
+		var height_half = height / 2;
+
+		var gridX = Math.floor( widthSegments ) || 1;
+		var gridY = Math.floor( heightSegments ) || 1;
+
+		var gridX1 = gridX + 1;
+		var gridY1 = gridY + 1;
+
+		var segment_width = width / gridX;
+		var segment_height = height / gridY;
+
+		var ix, iy;
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		// generate vertices, normals and uvs
+
+		for ( iy = 0; iy < gridY1; iy ++ ) {
+
+			var y = iy * segment_height - height_half;
+
+			for ( ix = 0; ix < gridX1; ix ++ ) {
+
+				var x = ix * segment_width - width_half;
+
+				vertices.push( x, - y, 0 );
+
+				normals.push( 0, 0, 1 );
+
+				uvs.push( ix / gridX );
+				uvs.push( 1 - ( iy / gridY ) );
+
+			}
+
+		}
+
+		// indices
+
+		for ( iy = 0; iy < gridY; iy ++ ) {
+
+			for ( ix = 0; ix < gridX; ix ++ ) {
+
+				var a = ix + gridX1 * iy;
+				var b = ix + gridX1 * ( iy + 1 );
+				var c = ( ix + 1 ) + gridX1 * ( iy + 1 );
+				var d = ( ix + 1 ) + gridX1 * iy;
+
+				// faces
+
+				indices.push( a, b, d );
+				indices.push( b, c, d );
+
+			}
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	}
+
+	PlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	PlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry;
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	var materialId = 0;
+
+	function Material() {
+
+		Object.defineProperty( this, 'id', { value: materialId ++ } );
+
+		this.uuid = _Math.generateUUID();
+
+		this.name = '';
+		this.type = 'Material';
+
+		this.fog = true;
+		this.lights = true;
+
+		this.blending = NormalBlending;
+		this.side = FrontSide;
+		this.flatShading = false;
+		this.vertexTangents = false;
+		this.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors
+
+		this.opacity = 1;
+		this.transparent = false;
+
+		this.blendSrc = SrcAlphaFactor;
+		this.blendDst = OneMinusSrcAlphaFactor;
+		this.blendEquation = AddEquation;
+		this.blendSrcAlpha = null;
+		this.blendDstAlpha = null;
+		this.blendEquationAlpha = null;
+
+		this.depthFunc = LessEqualDepth;
+		this.depthTest = true;
+		this.depthWrite = true;
+
+		this.clippingPlanes = null;
+		this.clipIntersection = false;
+		this.clipShadows = false;
+
+		this.shadowSide = null;
+
+		this.colorWrite = true;
+
+		this.precision = null; // override the renderer's default precision for this material
+
+		this.polygonOffset = false;
+		this.polygonOffsetFactor = 0;
+		this.polygonOffsetUnits = 0;
+
+		this.dithering = false;
+
+		this.alphaTest = 0;
+		this.premultipliedAlpha = false;
+
+		this.visible = true;
+
+		this.userData = {};
+
+		this.needsUpdate = true;
+
+	}
+
+	Material.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
+
+		constructor: Material,
+
+		isMaterial: true,
+
+		onBeforeCompile: function () {},
+
+		setValues: function ( values ) {
+
+			if ( values === undefined ) return;
+
+			for ( var key in values ) {
+
+				var newValue = values[ key ];
+
+				if ( newValue === undefined ) {
+
+					console.warn( "THREE.Material: '" + key + "' parameter is undefined." );
+					continue;
+
+				}
+
+				// for backward compatability if shading is set in the constructor
+				if ( key === 'shading' ) {
+
+					console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
+					this.flatShading = ( newValue === FlatShading ) ? true : false;
+					continue;
+
+				}
+
+				var currentValue = this[ key ];
+
+				if ( currentValue === undefined ) {
+
+					console.warn( "THREE." + this.type + ": '" + key + "' is not a property of this material." );
+					continue;
+
+				}
+
+				if ( currentValue && currentValue.isColor ) {
+
+					currentValue.set( newValue );
+
+				} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {
+
+					currentValue.copy( newValue );
+
+				} else {
+
+					this[ key ] = newValue;
+
+				}
+
+			}
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var isRoot = ( meta === undefined || typeof meta === 'string' );
+
+			if ( isRoot ) {
+
+				meta = {
+					textures: {},
+					images: {}
+				};
+
+			}
+
+			var data = {
+				metadata: {
+					version: 4.5,
+					type: 'Material',
+					generator: 'Material.toJSON'
+				}
+			};
+
+			// standard Material serialization
+			data.uuid = this.uuid;
+			data.type = this.type;
+
+			if ( this.name !== '' ) data.name = this.name;
+
+			if ( this.color && this.color.isColor ) data.color = this.color.getHex();
+
+			if ( this.roughness !== undefined ) data.roughness = this.roughness;
+			if ( this.metalness !== undefined ) data.metalness = this.metalness;
+
+			if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();
+			if ( this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;
+
+			if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();
+			if ( this.shininess !== undefined ) data.shininess = this.shininess;
+			if ( this.clearCoat !== undefined ) data.clearCoat = this.clearCoat;
+			if ( this.clearCoatRoughness !== undefined ) data.clearCoatRoughness = this.clearCoatRoughness;
+
+			if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;
+			if ( this.matcap && this.matcap.isTexture ) data.matcap = this.matcap.toJSON( meta ).uuid;
+			if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;
+			if ( this.lightMap && this.lightMap.isTexture ) data.lightMap = this.lightMap.toJSON( meta ).uuid;
+
+			if ( this.aoMap && this.aoMap.isTexture ) {
+
+				data.aoMap = this.aoMap.toJSON( meta ).uuid;
+				data.aoMapIntensity = this.aoMapIntensity;
+
+			}
+
+			if ( this.bumpMap && this.bumpMap.isTexture ) {
+
+				data.bumpMap = this.bumpMap.toJSON( meta ).uuid;
+				data.bumpScale = this.bumpScale;
+
+			}
+
+			if ( this.normalMap && this.normalMap.isTexture ) {
+
+				data.normalMap = this.normalMap.toJSON( meta ).uuid;
+				data.normalMapType = this.normalMapType;
+				data.normalScale = this.normalScale.toArray();
+
+			}
+
+			if ( this.displacementMap && this.displacementMap.isTexture ) {
+
+				data.displacementMap = this.displacementMap.toJSON( meta ).uuid;
+				data.displacementScale = this.displacementScale;
+				data.displacementBias = this.displacementBias;
+
+			}
+
+			if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;
+			if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;
+
+			if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;
+			if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;
+
+			if ( this.envMap && this.envMap.isTexture ) {
+
+				data.envMap = this.envMap.toJSON( meta ).uuid;
+				data.reflectivity = this.reflectivity; // Scale behind envMap
+
+				if ( this.combine !== undefined ) data.combine = this.combine;
+				if ( this.envMapIntensity !== undefined ) data.envMapIntensity = this.envMapIntensity;
+
+			}
+
+			if ( this.gradientMap && this.gradientMap.isTexture ) {
+
+				data.gradientMap = this.gradientMap.toJSON( meta ).uuid;
+
+			}
+
+			if ( this.size !== undefined ) data.size = this.size;
+			if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;
+
+			if ( this.blending !== NormalBlending ) data.blending = this.blending;
+			if ( this.flatShading === true ) data.flatShading = this.flatShading;
+			if ( this.side !== FrontSide ) data.side = this.side;
+			if ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors;
+
+			if ( this.opacity < 1 ) data.opacity = this.opacity;
+			if ( this.transparent === true ) data.transparent = this.transparent;
+
+			data.depthFunc = this.depthFunc;
+			data.depthTest = this.depthTest;
+			data.depthWrite = this.depthWrite;
+
+			// rotation (SpriteMaterial)
+			if ( this.rotation !== 0 ) data.rotation = this.rotation;
+
+			if ( this.polygonOffset === true ) data.polygonOffset = true;
+			if ( this.polygonOffsetFactor !== 0 ) data.polygonOffsetFactor = this.polygonOffsetFactor;
+			if ( this.polygonOffsetUnits !== 0 ) data.polygonOffsetUnits = this.polygonOffsetUnits;
+
+			if ( this.linewidth !== 1 ) data.linewidth = this.linewidth;
+			if ( this.dashSize !== undefined ) data.dashSize = this.dashSize;
+			if ( this.gapSize !== undefined ) data.gapSize = this.gapSize;
+			if ( this.scale !== undefined ) data.scale = this.scale;
+
+			if ( this.dithering === true ) data.dithering = true;
+
+			if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;
+			if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;
+
+			if ( this.wireframe === true ) data.wireframe = this.wireframe;
+			if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;
+			if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;
+			if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;
+
+			if ( this.morphTargets === true ) data.morphTargets = true;
+			if ( this.skinning === true ) data.skinning = true;
+
+			if ( this.visible === false ) data.visible = false;
+			if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;
+
+			// TODO: Copied from Object3D.toJSON
+
+			function extractFromCache( cache ) {
+
+				var values = [];
+
+				for ( var key in cache ) {
+
+					var data = cache[ key ];
+					delete data.metadata;
+					values.push( data );
+
+				}
+
+				return values;
+
+			}
+
+			if ( isRoot ) {
+
+				var textures = extractFromCache( meta.textures );
+				var images = extractFromCache( meta.images );
+
+				if ( textures.length > 0 ) data.textures = textures;
+				if ( images.length > 0 ) data.images = images;
+
+			}
+
+			return data;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( source ) {
+
+			this.name = source.name;
+
+			this.fog = source.fog;
+			this.lights = source.lights;
+
+			this.blending = source.blending;
+			this.side = source.side;
+			this.flatShading = source.flatShading;
+			this.vertexColors = source.vertexColors;
+
+			this.opacity = source.opacity;
+			this.transparent = source.transparent;
+
+			this.blendSrc = source.blendSrc;
+			this.blendDst = source.blendDst;
+			this.blendEquation = source.blendEquation;
+			this.blendSrcAlpha = source.blendSrcAlpha;
+			this.blendDstAlpha = source.blendDstAlpha;
+			this.blendEquationAlpha = source.blendEquationAlpha;
+
+			this.depthFunc = source.depthFunc;
+			this.depthTest = source.depthTest;
+			this.depthWrite = source.depthWrite;
+
+			this.colorWrite = source.colorWrite;
+
+			this.precision = source.precision;
+
+			this.polygonOffset = source.polygonOffset;
+			this.polygonOffsetFactor = source.polygonOffsetFactor;
+			this.polygonOffsetUnits = source.polygonOffsetUnits;
+
+			this.dithering = source.dithering;
+
+			this.alphaTest = source.alphaTest;
+			this.premultipliedAlpha = source.premultipliedAlpha;
+
+			this.visible = source.visible;
+			this.userData = JSON.parse( JSON.stringify( source.userData ) );
+
+			this.clipShadows = source.clipShadows;
+			this.clipIntersection = source.clipIntersection;
+
+			var srcPlanes = source.clippingPlanes,
+				dstPlanes = null;
+
+			if ( srcPlanes !== null ) {
+
+				var n = srcPlanes.length;
+				dstPlanes = new Array( n );
+
+				for ( var i = 0; i !== n; ++ i )
+					dstPlanes[ i ] = srcPlanes[ i ].clone();
+
+			}
+
+			this.clippingPlanes = dstPlanes;
+
+			this.shadowSide = source.shadowSide;
+
+			return this;
+
+		},
+
+		dispose: function () {
+
+			this.dispatchEvent( { type: 'dispose' } );
+
+		}
+
+	} );
+
+	var default_vertex = "void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";
+
+	var default_fragment = "void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 *
+	 * parameters = {
+	 *  defines: { "label" : "value" },
+	 *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
+	 *
+	 *  fragmentShader: <string>,
+	 *  vertexShader: <string>,
+	 *
+	 *  wireframe: <boolean>,
+	 *  wireframeLinewidth: <float>,
+	 *
+	 *  lights: <bool>,
+	 *
+	 *  skinning: <bool>,
+	 *  morphTargets: <bool>,
+	 *  morphNormals: <bool>
+	 * }
+	 */
+
+	function ShaderMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'ShaderMaterial';
+
+		this.defines = {};
+		this.uniforms = {};
+
+		this.vertexShader = default_vertex;
+		this.fragmentShader = default_fragment;
+
+		this.linewidth = 1;
+
+		this.wireframe = false;
+		this.wireframeLinewidth = 1;
+
+		this.fog = false; // set to use scene fog
+		this.lights = false; // set to use scene lights
+		this.clipping = false; // set to use user-defined clipping planes
+
+		this.skinning = false; // set to use skinning attribute streams
+		this.morphTargets = false; // set to use morph targets
+		this.morphNormals = false; // set to use morph normals
+
+		this.extensions = {
+			derivatives: false, // set to use derivatives
+			fragDepth: false, // set to use fragment depth values
+			drawBuffers: false, // set to use draw buffers
+			shaderTextureLOD: false // set to use shader texture LOD
+		};
+
+		// When rendered geometry doesn't include these attributes but the material does,
+		// use these default values in WebGL. This avoids errors when buffer data is missing.
+		this.defaultAttributeValues = {
+			'color': [ 1, 1, 1 ],
+			'uv': [ 0, 0 ],
+			'uv2': [ 0, 0 ]
+		};
+
+		this.index0AttributeName = undefined;
+		this.uniformsNeedUpdate = false;
+
+		if ( parameters !== undefined ) {
+
+			if ( parameters.attributes !== undefined ) {
+
+				console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );
+
+			}
+
+			this.setValues( parameters );
+
+		}
+
+	}
+
+	ShaderMaterial.prototype = Object.create( Material.prototype );
+	ShaderMaterial.prototype.constructor = ShaderMaterial;
+
+	ShaderMaterial.prototype.isShaderMaterial = true;
+
+	ShaderMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.fragmentShader = source.fragmentShader;
+		this.vertexShader = source.vertexShader;
+
+		this.uniforms = cloneUniforms( source.uniforms );
+
+		this.defines = Object.assign( {}, source.defines );
+
+		this.wireframe = source.wireframe;
+		this.wireframeLinewidth = source.wireframeLinewidth;
+
+		this.lights = source.lights;
+		this.clipping = source.clipping;
+
+		this.skinning = source.skinning;
+
+		this.morphTargets = source.morphTargets;
+		this.morphNormals = source.morphNormals;
+
+		this.extensions = source.extensions;
+
+		return this;
+
+	};
+
+	ShaderMaterial.prototype.toJSON = function ( meta ) {
+
+		var data = Material.prototype.toJSON.call( this, meta );
+
+		data.uniforms = {};
+
+		for ( var name in this.uniforms ) {
+
+			var uniform = this.uniforms[ name ];
+			var value = uniform.value;
+
+			if ( value && value.isTexture ) {
+
+				data.uniforms[ name ] = {
+					type: 't',
+					value: value.toJSON( meta ).uuid
+				};
+
+			} else if ( value && value.isColor ) {
+
+				data.uniforms[ name ] = {
+					type: 'c',
+					value: value.getHex()
+				};
+
+			} else if ( value && value.isVector2 ) {
+
+				data.uniforms[ name ] = {
+					type: 'v2',
+					value: value.toArray()
+				};
+
+			} else if ( value && value.isVector3 ) {
+
+				data.uniforms[ name ] = {
+					type: 'v3',
+					value: value.toArray()
+				};
+
+			} else if ( value && value.isVector4 ) {
+
+				data.uniforms[ name ] = {
+					type: 'v4',
+					value: value.toArray()
+				};
+
+			} else if ( value && value.isMatrix3 ) {
+
+				data.uniforms[ name ] = {
+					type: 'm3',
+					value: value.toArray()
+				};
+
+			} else if ( value && value.isMatrix4 ) {
+
+				data.uniforms[ name ] = {
+					type: 'm4',
+					value: value.toArray()
+				};
+
+			} else {
+
+				data.uniforms[ name ] = {
+					value: value
+				};
+
+				// note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far
+
+			}
+
+		}
+
+		if ( Object.keys( this.defines ).length > 0 ) data.defines = this.defines;
+
+		data.vertexShader = this.vertexShader;
+		data.fragmentShader = this.fragmentShader;
+
+		var extensions = {};
+
+		for ( var key in this.extensions ) {
+
+			if ( this.extensions[ key ] === true ) extensions[ key ] = true;
+
+		}
+
+		if ( Object.keys( extensions ).length > 0 ) data.extensions = extensions;
+
+		return data;
+
+	};
+
+	/**
+	 * @author bhouston / http://clara.io
+	 */
+
+	function Ray( origin, direction ) {
+
+		this.origin = ( origin !== undefined ) ? origin : new Vector3();
+		this.direction = ( direction !== undefined ) ? direction : new Vector3();
+
+	}
+
+	Object.assign( Ray.prototype, {
+
+		set: function ( origin, direction ) {
+
+			this.origin.copy( origin );
+			this.direction.copy( direction );
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( ray ) {
+
+			this.origin.copy( ray.origin );
+			this.direction.copy( ray.direction );
+
+			return this;
+
+		},
+
+		at: function ( t, target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Ray: .at() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return target.copy( this.direction ).multiplyScalar( t ).add( this.origin );
+
+		},
+
+		lookAt: function ( v ) {
+
+			this.direction.copy( v ).sub( this.origin ).normalize();
+
+			return this;
+
+		},
+
+		recast: function () {
+
+			var v1 = new Vector3();
+
+			return function recast( t ) {
+
+				this.origin.copy( this.at( t, v1 ) );
+
+				return this;
+
+			};
+
+		}(),
+
+		closestPointToPoint: function ( point, target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Ray: .closestPointToPoint() target is now required' );
+				target = new Vector3();
+
+			}
+
+			target.subVectors( point, this.origin );
+
+			var directionDistance = target.dot( this.direction );
+
+			if ( directionDistance < 0 ) {
+
+				return target.copy( this.origin );
+
+			}
+
+			return target.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );
+
+		},
+
+		distanceToPoint: function ( point ) {
+
+			return Math.sqrt( this.distanceSqToPoint( point ) );
+
+		},
+
+		distanceSqToPoint: function () {
+
+			var v1 = new Vector3();
+
+			return function distanceSqToPoint( point ) {
+
+				var directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );
+
+				// point behind the ray
+
+				if ( directionDistance < 0 ) {
+
+					return this.origin.distanceToSquared( point );
+
+				}
+
+				v1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );
+
+				return v1.distanceToSquared( point );
+
+			};
+
+		}(),
+
+		distanceSqToSegment: function () {
+
+			var segCenter = new Vector3();
+			var segDir = new Vector3();
+			var diff = new Vector3();
+
+			return function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {
+
+				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h
+				// It returns the min distance between the ray and the segment
+				// defined by v0 and v1
+				// It can also set two optional targets :
+				// - The closest point on the ray
+				// - The closest point on the segment
+
+				segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
+				segDir.copy( v1 ).sub( v0 ).normalize();
+				diff.copy( this.origin ).sub( segCenter );
+
+				var segExtent = v0.distanceTo( v1 ) * 0.5;
+				var a01 = - this.direction.dot( segDir );
+				var b0 = diff.dot( this.direction );
+				var b1 = - diff.dot( segDir );
+				var c = diff.lengthSq();
+				var det = Math.abs( 1 - a01 * a01 );
+				var s0, s1, sqrDist, extDet;
+
+				if ( det > 0 ) {
+
+					// The ray and segment are not parallel.
+
+					s0 = a01 * b1 - b0;
+					s1 = a01 * b0 - b1;
+					extDet = segExtent * det;
+
+					if ( s0 >= 0 ) {
+
+						if ( s1 >= - extDet ) {
+
+							if ( s1 <= extDet ) {
+
+								// region 0
+								// Minimum at interior points of ray and segment.
+
+								var invDet = 1 / det;
+								s0 *= invDet;
+								s1 *= invDet;
+								sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;
+
+							} else {
+
+								// region 1
+
+								s1 = segExtent;
+								s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
+								sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+							}
+
+						} else {
+
+							// region 5
+
+							s1 = - segExtent;
+							s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
+							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+						}
+
+					} else {
+
+						if ( s1 <= - extDet ) {
+
+							// region 4
+
+							s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
+							s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
+							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+						} else if ( s1 <= extDet ) {
+
+							// region 3
+
+							s0 = 0;
+							s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
+							sqrDist = s1 * ( s1 + 2 * b1 ) + c;
+
+						} else {
+
+							// region 2
+
+							s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
+							s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
+							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+						}
+
+					}
+
+				} else {
+
+					// Ray and segment are parallel.
+
+					s1 = ( a01 > 0 ) ? - segExtent : segExtent;
+					s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
+					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+				}
+
+				if ( optionalPointOnRay ) {
+
+					optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );
+
+				}
+
+				if ( optionalPointOnSegment ) {
+
+					optionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );
+
+				}
+
+				return sqrDist;
+
+			};
+
+		}(),
+
+		intersectSphere: function () {
+
+			var v1 = new Vector3();
+
+			return function intersectSphere( sphere, target ) {
+
+				v1.subVectors( sphere.center, this.origin );
+				var tca = v1.dot( this.direction );
+				var d2 = v1.dot( v1 ) - tca * tca;
+				var radius2 = sphere.radius * sphere.radius;
+
+				if ( d2 > radius2 ) return null;
+
+				var thc = Math.sqrt( radius2 - d2 );
+
+				// t0 = first intersect point - entrance on front of sphere
+				var t0 = tca - thc;
+
+				// t1 = second intersect point - exit point on back of sphere
+				var t1 = tca + thc;
+
+				// test to see if both t0 and t1 are behind the ray - if so, return null
+				if ( t0 < 0 && t1 < 0 ) return null;
+
+				// test to see if t0 is behind the ray:
+				// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
+				// in order to always return an intersect point that is in front of the ray.
+				if ( t0 < 0 ) return this.at( t1, target );
+
+				// else t0 is in front of the ray, so return the first collision point scaled by t0
+				return this.at( t0, target );
+
+			};
+
+		}(),
+
+		intersectsSphere: function ( sphere ) {
+
+			return this.distanceSqToPoint( sphere.center ) <= ( sphere.radius * sphere.radius );
+
+		},
+
+		distanceToPlane: function ( plane ) {
+
+			var denominator = plane.normal.dot( this.direction );
+
+			if ( denominator === 0 ) {
+
+				// line is coplanar, return origin
+				if ( plane.distanceToPoint( this.origin ) === 0 ) {
+
+					return 0;
+
+				}
+
+				// Null is preferable to undefined since undefined means.... it is undefined
+
+				return null;
+
+			}
+
+			var t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;
+
+			// Return if the ray never intersects the plane
+
+			return t >= 0 ? t : null;
+
+		},
+
+		intersectPlane: function ( plane, target ) {
+
+			var t = this.distanceToPlane( plane );
+
+			if ( t === null ) {
+
+				return null;
+
+			}
+
+			return this.at( t, target );
+
+		},
+
+		intersectsPlane: function ( plane ) {
+
+			// check if the ray lies on the plane first
+
+			var distToPoint = plane.distanceToPoint( this.origin );
+
+			if ( distToPoint === 0 ) {
+
+				return true;
+
+			}
+
+			var denominator = plane.normal.dot( this.direction );
+
+			if ( denominator * distToPoint < 0 ) {
+
+				return true;
+
+			}
+
+			// ray origin is behind the plane (and is pointing behind it)
+
+			return false;
+
+		},
+
+		intersectBox: function ( box, target ) {
+
+			var tmin, tmax, tymin, tymax, tzmin, tzmax;
+
+			var invdirx = 1 / this.direction.x,
+				invdiry = 1 / this.direction.y,
+				invdirz = 1 / this.direction.z;
+
+			var origin = this.origin;
+
+			if ( invdirx >= 0 ) {
+
+				tmin = ( box.min.x - origin.x ) * invdirx;
+				tmax = ( box.max.x - origin.x ) * invdirx;
+
+			} else {
+
+				tmin = ( box.max.x - origin.x ) * invdirx;
+				tmax = ( box.min.x - origin.x ) * invdirx;
+
+			}
+
+			if ( invdiry >= 0 ) {
+
+				tymin = ( box.min.y - origin.y ) * invdiry;
+				tymax = ( box.max.y - origin.y ) * invdiry;
+
+			} else {
+
+				tymin = ( box.max.y - origin.y ) * invdiry;
+				tymax = ( box.min.y - origin.y ) * invdiry;
+
+			}
+
+			if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;
+
+			// These lines also handle the case where tmin or tmax is NaN
+			// (result of 0 * Infinity). x !== x returns true if x is NaN
+
+			if ( tymin > tmin || tmin !== tmin ) tmin = tymin;
+
+			if ( tymax < tmax || tmax !== tmax ) tmax = tymax;
+
+			if ( invdirz >= 0 ) {
+
+				tzmin = ( box.min.z - origin.z ) * invdirz;
+				tzmax = ( box.max.z - origin.z ) * invdirz;
+
+			} else {
+
+				tzmin = ( box.max.z - origin.z ) * invdirz;
+				tzmax = ( box.min.z - origin.z ) * invdirz;
+
+			}
+
+			if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;
+
+			if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;
+
+			if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;
+
+			//return point closest to the ray (positive side)
+
+			if ( tmax < 0 ) return null;
+
+			return this.at( tmin >= 0 ? tmin : tmax, target );
+
+		},
+
+		intersectsBox: ( function () {
+
+			var v = new Vector3();
+
+			return function intersectsBox( box ) {
+
+				return this.intersectBox( box, v ) !== null;
+
+			};
+
+		} )(),
+
+		intersectTriangle: function () {
+
+			// Compute the offset origin, edges, and normal.
+			var diff = new Vector3();
+			var edge1 = new Vector3();
+			var edge2 = new Vector3();
+			var normal = new Vector3();
+
+			return function intersectTriangle( a, b, c, backfaceCulling, target ) {
+
+				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h
+
+				edge1.subVectors( b, a );
+				edge2.subVectors( c, a );
+				normal.crossVectors( edge1, edge2 );
+
+				// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
+				// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
+				//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
+				//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
+				//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
+				var DdN = this.direction.dot( normal );
+				var sign;
+
+				if ( DdN > 0 ) {
+
+					if ( backfaceCulling ) return null;
+					sign = 1;
+
+				} else if ( DdN < 0 ) {
+
+					sign = - 1;
+					DdN = - DdN;
+
+				} else {
+
+					return null;
+
+				}
+
+				diff.subVectors( this.origin, a );
+				var DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );
+
+				// b1 < 0, no intersection
+				if ( DdQxE2 < 0 ) {
+
+					return null;
+
+				}
+
+				var DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );
+
+				// b2 < 0, no intersection
+				if ( DdE1xQ < 0 ) {
+
+					return null;
+
+				}
+
+				// b1+b2 > 1, no intersection
+				if ( DdQxE2 + DdE1xQ > DdN ) {
+
+					return null;
+
+				}
+
+				// Line intersects triangle, check if ray does.
+				var QdN = - sign * diff.dot( normal );
+
+				// t < 0, no intersection
+				if ( QdN < 0 ) {
+
+					return null;
+
+				}
+
+				// Ray intersects triangle.
+				return this.at( QdN / DdN, target );
+
+			};
+
+		}(),
+
+		applyMatrix4: function ( matrix4 ) {
+
+			this.origin.applyMatrix4( matrix4 );
+			this.direction.transformDirection( matrix4 );
+
+			return this;
+
+		},
+
+		equals: function ( ray ) {
+
+			return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );
+
+		}
+
+	} );
+
+	/**
+	 * @author bhouston / http://clara.io
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function Triangle( a, b, c ) {
+
+		this.a = ( a !== undefined ) ? a : new Vector3();
+		this.b = ( b !== undefined ) ? b : new Vector3();
+		this.c = ( c !== undefined ) ? c : new Vector3();
+
+	}
+
+	Object.assign( Triangle, {
+
+		getNormal: function () {
+
+			var v0 = new Vector3();
+
+			return function getNormal( a, b, c, target ) {
+
+				if ( target === undefined ) {
+
+					console.warn( 'THREE.Triangle: .getNormal() target is now required' );
+					target = new Vector3();
+
+				}
+
+				target.subVectors( c, b );
+				v0.subVectors( a, b );
+				target.cross( v0 );
+
+				var targetLengthSq = target.lengthSq();
+				if ( targetLengthSq > 0 ) {
+
+					return target.multiplyScalar( 1 / Math.sqrt( targetLengthSq ) );
+
+				}
+
+				return target.set( 0, 0, 0 );
+
+			};
+
+		}(),
+
+		// static/instance method to calculate barycentric coordinates
+		// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
+		getBarycoord: function () {
+
+			var v0 = new Vector3();
+			var v1 = new Vector3();
+			var v2 = new Vector3();
+
+			return function getBarycoord( point, a, b, c, target ) {
+
+				v0.subVectors( c, a );
+				v1.subVectors( b, a );
+				v2.subVectors( point, a );
+
+				var dot00 = v0.dot( v0 );
+				var dot01 = v0.dot( v1 );
+				var dot02 = v0.dot( v2 );
+				var dot11 = v1.dot( v1 );
+				var dot12 = v1.dot( v2 );
+
+				var denom = ( dot00 * dot11 - dot01 * dot01 );
+
+				if ( target === undefined ) {
+
+					console.warn( 'THREE.Triangle: .getBarycoord() target is now required' );
+					target = new Vector3();
+
+				}
+
+				// collinear or singular triangle
+				if ( denom === 0 ) {
+
+					// arbitrary location outside of triangle?
+					// not sure if this is the best idea, maybe should be returning undefined
+					return target.set( - 2, - 1, - 1 );
+
+				}
+
+				var invDenom = 1 / denom;
+				var u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;
+				var v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;
+
+				// barycentric coordinates must always sum to 1
+				return target.set( 1 - u - v, v, u );
+
+			};
+
+		}(),
+
+		containsPoint: function () {
+
+			var v1 = new Vector3();
+
+			return function containsPoint( point, a, b, c ) {
+
+				Triangle.getBarycoord( point, a, b, c, v1 );
+
+				return ( v1.x >= 0 ) && ( v1.y >= 0 ) && ( ( v1.x + v1.y ) <= 1 );
+
+			};
+
+		}(),
+
+		getUV: function () {
+
+			var barycoord = new Vector3();
+
+			return function getUV( point, p1, p2, p3, uv1, uv2, uv3, target ) {
+
+				this.getBarycoord( point, p1, p2, p3, barycoord );
+
+				target.set( 0, 0 );
+				target.addScaledVector( uv1, barycoord.x );
+				target.addScaledVector( uv2, barycoord.y );
+				target.addScaledVector( uv3, barycoord.z );
+
+				return target;
+
+			};
+
+		}(),
+
+		isFrontFacing: function () {
+
+			var v0 = new Vector3();
+			var v1 = new Vector3();
+
+			return function isFrontFacing( a, b, c, direction ) {
+
+				v0.subVectors( c, b );
+				v1.subVectors( a, b );
+
+				// strictly front facing
+				return ( v0.cross( v1 ).dot( direction ) < 0 ) ? true : false;
+
+			};
+
+		}()
+
+	} );
+
+	Object.assign( Triangle.prototype, {
+
+		set: function ( a, b, c ) {
+
+			this.a.copy( a );
+			this.b.copy( b );
+			this.c.copy( c );
+
+			return this;
+
+		},
+
+		setFromPointsAndIndices: function ( points, i0, i1, i2 ) {
+
+			this.a.copy( points[ i0 ] );
+			this.b.copy( points[ i1 ] );
+			this.c.copy( points[ i2 ] );
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( triangle ) {
+
+			this.a.copy( triangle.a );
+			this.b.copy( triangle.b );
+			this.c.copy( triangle.c );
+
+			return this;
+
+		},
+
+		getArea: function () {
+
+			var v0 = new Vector3();
+			var v1 = new Vector3();
+
+			return function getArea() {
+
+				v0.subVectors( this.c, this.b );
+				v1.subVectors( this.a, this.b );
+
+				return v0.cross( v1 ).length() * 0.5;
+
+			};
+
+		}(),
+
+		getMidpoint: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Triangle: .getMidpoint() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return target.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );
+
+		},
+
+		getNormal: function ( target ) {
+
+			return Triangle.getNormal( this.a, this.b, this.c, target );
+
+		},
+
+		getPlane: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Triangle: .getPlane() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return target.setFromCoplanarPoints( this.a, this.b, this.c );
+
+		},
+
+		getBarycoord: function ( point, target ) {
+
+			return Triangle.getBarycoord( point, this.a, this.b, this.c, target );
+
+		},
+
+		getUV: function ( point, uv1, uv2, uv3, target ) {
+
+			return Triangle.getUV( point, this.a, this.b, this.c, uv1, uv2, uv3, target );
+
+		},
+
+		containsPoint: function ( point ) {
+
+			return Triangle.containsPoint( point, this.a, this.b, this.c );
+
+		},
+
+		isFrontFacing: function ( direction ) {
+
+			return Triangle.isFrontFacing( this.a, this.b, this.c, direction );
+
+		},
+
+		intersectsBox: function ( box ) {
+
+			return box.intersectsTriangle( this );
+
+		},
+
+		closestPointToPoint: function () {
+
+			var vab = new Vector3();
+			var vac = new Vector3();
+			var vbc = new Vector3();
+			var vap = new Vector3();
+			var vbp = new Vector3();
+			var vcp = new Vector3();
+
+			return function closestPointToPoint( p, target ) {
+
+				if ( target === undefined ) {
+
+					console.warn( 'THREE.Triangle: .closestPointToPoint() target is now required' );
+					target = new Vector3();
+
+				}
+
+				var a = this.a, b = this.b, c = this.c;
+				var v, w;
+
+				// algorithm thanks to Real-Time Collision Detection by Christer Ericson,
+				// published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,
+				// under the accompanying license; see chapter 5.1.5 for detailed explanation.
+				// basically, we're distinguishing which of the voronoi regions of the triangle
+				// the point lies in with the minimum amount of redundant computation.
+
+				vab.subVectors( b, a );
+				vac.subVectors( c, a );
+				vap.subVectors( p, a );
+				var d1 = vab.dot( vap );
+				var d2 = vac.dot( vap );
+				if ( d1 <= 0 && d2 <= 0 ) {
+
+					// vertex region of A; barycentric coords (1, 0, 0)
+					return target.copy( a );
+
+				}
+
+				vbp.subVectors( p, b );
+				var d3 = vab.dot( vbp );
+				var d4 = vac.dot( vbp );
+				if ( d3 >= 0 && d4 <= d3 ) {
+
+					// vertex region of B; barycentric coords (0, 1, 0)
+					return target.copy( b );
+
+				}
+
+				var vc = d1 * d4 - d3 * d2;
+				if ( vc <= 0 && d1 >= 0 && d3 <= 0 ) {
+
+					v = d1 / ( d1 - d3 );
+					// edge region of AB; barycentric coords (1-v, v, 0)
+					return target.copy( a ).addScaledVector( vab, v );
+
+				}
+
+				vcp.subVectors( p, c );
+				var d5 = vab.dot( vcp );
+				var d6 = vac.dot( vcp );
+				if ( d6 >= 0 && d5 <= d6 ) {
+
+					// vertex region of C; barycentric coords (0, 0, 1)
+					return target.copy( c );
+
+				}
+
+				var vb = d5 * d2 - d1 * d6;
+				if ( vb <= 0 && d2 >= 0 && d6 <= 0 ) {
+
+					w = d2 / ( d2 - d6 );
+					// edge region of AC; barycentric coords (1-w, 0, w)
+					return target.copy( a ).addScaledVector( vac, w );
+
+				}
+
+				var va = d3 * d6 - d5 * d4;
+				if ( va <= 0 && ( d4 - d3 ) >= 0 && ( d5 - d6 ) >= 0 ) {
+
+					vbc.subVectors( c, b );
+					w = ( d4 - d3 ) / ( ( d4 - d3 ) + ( d5 - d6 ) );
+					// edge region of BC; barycentric coords (0, 1-w, w)
+					return target.copy( b ).addScaledVector( vbc, w ); // edge region of BC
+
+				}
+
+				// face region
+				var denom = 1 / ( va + vb + vc );
+				// u = va * denom
+				v = vb * denom;
+				w = vc * denom;
+				return target.copy( a ).addScaledVector( vab, v ).addScaledVector( vac, w );
+
+			};
+
+		}(),
+
+		equals: function ( triangle ) {
+
+			return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 *
+	 * parameters = {
+	 *  color: <hex>,
+	 *  opacity: <float>,
+	 *  map: new THREE.Texture( <Image> ),
+	 *
+	 *  lightMap: new THREE.Texture( <Image> ),
+	 *  lightMapIntensity: <float>
+	 *
+	 *  aoMap: new THREE.Texture( <Image> ),
+	 *  aoMapIntensity: <float>
+	 *
+	 *  specularMap: new THREE.Texture( <Image> ),
+	 *
+	 *  alphaMap: new THREE.Texture( <Image> ),
+	 *
+	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
+	 *  combine: THREE.Multiply,
+	 *  reflectivity: <float>,
+	 *  refractionRatio: <float>,
+	 *
+	 *  depthTest: <bool>,
+	 *  depthWrite: <bool>,
+	 *
+	 *  wireframe: <boolean>,
+	 *  wireframeLinewidth: <float>,
+	 *
+	 *  skinning: <bool>,
+	 *  morphTargets: <bool>
+	 * }
+	 */
+
+	function MeshBasicMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'MeshBasicMaterial';
+
+		this.color = new Color( 0xffffff ); // emissive
+
+		this.map = null;
+
+		this.lightMap = null;
+		this.lightMapIntensity = 1.0;
+
+		this.aoMap = null;
+		this.aoMapIntensity = 1.0;
+
+		this.specularMap = null;
+
+		this.alphaMap = null;
+
+		this.envMap = null;
+		this.combine = MultiplyOperation;
+		this.reflectivity = 1;
+		this.refractionRatio = 0.98;
+
+		this.wireframe = false;
+		this.wireframeLinewidth = 1;
+		this.wireframeLinecap = 'round';
+		this.wireframeLinejoin = 'round';
+
+		this.skinning = false;
+		this.morphTargets = false;
+
+		this.lights = false;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshBasicMaterial.prototype = Object.create( Material.prototype );
+	MeshBasicMaterial.prototype.constructor = MeshBasicMaterial;
+
+	MeshBasicMaterial.prototype.isMeshBasicMaterial = true;
+
+	MeshBasicMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.color.copy( source.color );
+
+		this.map = source.map;
+
+		this.lightMap = source.lightMap;
+		this.lightMapIntensity = source.lightMapIntensity;
+
+		this.aoMap = source.aoMap;
+		this.aoMapIntensity = source.aoMapIntensity;
+
+		this.specularMap = source.specularMap;
+
+		this.alphaMap = source.alphaMap;
+
+		this.envMap = source.envMap;
+		this.combine = source.combine;
+		this.reflectivity = source.reflectivity;
+		this.refractionRatio = source.refractionRatio;
+
+		this.wireframe = source.wireframe;
+		this.wireframeLinewidth = source.wireframeLinewidth;
+		this.wireframeLinecap = source.wireframeLinecap;
+		this.wireframeLinejoin = source.wireframeLinejoin;
+
+		this.skinning = source.skinning;
+		this.morphTargets = source.morphTargets;
+
+		return this;
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author jonobr1 / http://jonobr1.com/
+	 */
+
+	function Mesh( geometry, material ) {
+
+		Object3D.call( this );
+
+		this.type = 'Mesh';
+
+		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
+		this.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } );
+
+		this.drawMode = TrianglesDrawMode;
+
+		this.updateMorphTargets();
+
+	}
+
+	Mesh.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Mesh,
+
+		isMesh: true,
+
+		setDrawMode: function ( value ) {
+
+			this.drawMode = value;
+
+		},
+
+		copy: function ( source ) {
+
+			Object3D.prototype.copy.call( this, source );
+
+			this.drawMode = source.drawMode;
+
+			if ( source.morphTargetInfluences !== undefined ) {
+
+				this.morphTargetInfluences = source.morphTargetInfluences.slice();
+
+			}
+
+			if ( source.morphTargetDictionary !== undefined ) {
+
+				this.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary );
+
+			}
+
+			return this;
+
+		},
+
+		updateMorphTargets: function () {
+
+			var geometry = this.geometry;
+			var m, ml, name;
+
+			if ( geometry.isBufferGeometry ) {
+
+				var morphAttributes = geometry.morphAttributes;
+				var keys = Object.keys( morphAttributes );
+
+				if ( keys.length > 0 ) {
+
+					var morphAttribute = morphAttributes[ keys[ 0 ] ];
+
+					if ( morphAttribute !== undefined ) {
+
+						this.morphTargetInfluences = [];
+						this.morphTargetDictionary = {};
+
+						for ( m = 0, ml = morphAttribute.length; m < ml; m ++ ) {
+
+							name = morphAttribute[ m ].name || String( m );
+
+							this.morphTargetInfluences.push( 0 );
+							this.morphTargetDictionary[ name ] = m;
+
+						}
+
+					}
+
+				}
+
+			} else {
+
+				var morphTargets = geometry.morphTargets;
+
+				if ( morphTargets !== undefined && morphTargets.length > 0 ) {
+
+					console.error( 'THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );
+
+				}
+
+			}
+
+		},
+
+		raycast: ( function () {
+
+			var inverseMatrix = new Matrix4();
+			var ray = new Ray();
+			var sphere = new Sphere();
+
+			var vA = new Vector3();
+			var vB = new Vector3();
+			var vC = new Vector3();
+
+			var tempA = new Vector3();
+			var tempB = new Vector3();
+			var tempC = new Vector3();
+
+			var morphA = new Vector3();
+			var morphB = new Vector3();
+			var morphC = new Vector3();
+
+			var uvA = new Vector2();
+			var uvB = new Vector2();
+			var uvC = new Vector2();
+
+			var intersectionPoint = new Vector3();
+			var intersectionPointWorld = new Vector3();
+
+			function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {
+
+				var intersect;
+
+				if ( material.side === BackSide ) {
+
+					intersect = ray.intersectTriangle( pC, pB, pA, true, point );
+
+				} else {
+
+					intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );
+
+				}
+
+				if ( intersect === null ) return null;
+
+				intersectionPointWorld.copy( point );
+				intersectionPointWorld.applyMatrix4( object.matrixWorld );
+
+				var distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );
+
+				if ( distance < raycaster.near || distance > raycaster.far ) return null;
+
+				return {
+					distance: distance,
+					point: intersectionPointWorld.clone(),
+					object: object
+				};
+
+			}
+
+			function checkBufferGeometryIntersection( object, material, raycaster, ray, position, morphPosition, uv, a, b, c ) {
+
+				vA.fromBufferAttribute( position, a );
+				vB.fromBufferAttribute( position, b );
+				vC.fromBufferAttribute( position, c );
+
+				var morphInfluences = object.morphTargetInfluences;
+
+				if ( material.morphTargets && morphPosition && morphInfluences ) {
+
+					morphA.set( 0, 0, 0 );
+					morphB.set( 0, 0, 0 );
+					morphC.set( 0, 0, 0 );
+
+					for ( var i = 0, il = morphPosition.length; i < il; i ++ ) {
+
+						var influence = morphInfluences[ i ];
+						var morphAttribute = morphPosition[ i ];
+
+						if ( influence === 0 ) continue;
+
+						tempA.fromBufferAttribute( morphAttribute, a );
+						tempB.fromBufferAttribute( morphAttribute, b );
+						tempC.fromBufferAttribute( morphAttribute, c );
+
+						morphA.addScaledVector( tempA.sub( vA ), influence );
+						morphB.addScaledVector( tempB.sub( vB ), influence );
+						morphC.addScaledVector( tempC.sub( vC ), influence );
+
+					}
+
+					vA.add( morphA );
+					vB.add( morphB );
+					vC.add( morphC );
+
+				}
+
+				var intersection = checkIntersection( object, material, raycaster, ray, vA, vB, vC, intersectionPoint );
+
+				if ( intersection ) {
+
+					if ( uv ) {
+
+						uvA.fromBufferAttribute( uv, a );
+						uvB.fromBufferAttribute( uv, b );
+						uvC.fromBufferAttribute( uv, c );
+
+						intersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2() );
+
+					}
+
+					var face = new Face3( a, b, c );
+					Triangle.getNormal( vA, vB, vC, face.normal );
+
+					intersection.face = face;
+
+				}
+
+				return intersection;
+
+			}
+
+			return function raycast( raycaster, intersects ) {
+
+				var geometry = this.geometry;
+				var material = this.material;
+				var matrixWorld = this.matrixWorld;
+
+				if ( material === undefined ) return;
+
+				// Checking boundingSphere distance to ray
+
+				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
+
+				sphere.copy( geometry.boundingSphere );
+				sphere.applyMatrix4( matrixWorld );
+
+				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
+
+				//
+
+				inverseMatrix.getInverse( matrixWorld );
+				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
+
+				// Check boundingBox before continuing
+
+				if ( geometry.boundingBox !== null ) {
+
+					if ( ray.intersectsBox( geometry.boundingBox ) === false ) return;
+
+				}
+
+				var intersection;
+
+				if ( geometry.isBufferGeometry ) {
+
+					var a, b, c;
+					var index = geometry.index;
+					var position = geometry.attributes.position;
+					var morphPosition = geometry.morphAttributes.position;
+					var uv = geometry.attributes.uv;
+					var groups = geometry.groups;
+					var drawRange = geometry.drawRange;
+					var i, j, il, jl;
+					var group, groupMaterial;
+					var start, end;
+
+					if ( index !== null ) {
+
+						// indexed buffer geometry
+
+						if ( Array.isArray( material ) ) {
+
+							for ( i = 0, il = groups.length; i < il; i ++ ) {
+
+								group = groups[ i ];
+								groupMaterial = material[ group.materialIndex ];
+
+								start = Math.max( group.start, drawRange.start );
+								end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );
+
+								for ( j = start, jl = end; j < jl; j += 3 ) {
+
+									a = index.getX( j );
+									b = index.getX( j + 1 );
+									c = index.getX( j + 2 );
+
+									intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, morphPosition, uv, a, b, c );
+
+									if ( intersection ) {
+
+										intersection.faceIndex = Math.floor( j / 3 ); // triangle number in indexed buffer semantics
+										intersection.face.materialIndex = group.materialIndex;
+										intersects.push( intersection );
+
+									}
+
+								}
+
+							}
+
+						} else {
+
+							start = Math.max( 0, drawRange.start );
+							end = Math.min( index.count, ( drawRange.start + drawRange.count ) );
+
+							for ( i = start, il = end; i < il; i += 3 ) {
+
+								a = index.getX( i );
+								b = index.getX( i + 1 );
+								c = index.getX( i + 2 );
+
+								intersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, morphPosition, uv, a, b, c );
+
+								if ( intersection ) {
+
+									intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indexed buffer semantics
+									intersects.push( intersection );
+
+								}
+
+							}
+
+						}
+
+					} else if ( position !== undefined ) {
+
+						// non-indexed buffer geometry
+
+						if ( Array.isArray( material ) ) {
+
+							for ( i = 0, il = groups.length; i < il; i ++ ) {
+
+								group = groups[ i ];
+								groupMaterial = material[ group.materialIndex ];
+
+								start = Math.max( group.start, drawRange.start );
+								end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );
+
+								for ( j = start, jl = end; j < jl; j += 3 ) {
+
+									a = j;
+									b = j + 1;
+									c = j + 2;
+
+									intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, morphPosition, uv, a, b, c );
+
+									if ( intersection ) {
+
+										intersection.faceIndex = Math.floor( j / 3 ); // triangle number in non-indexed buffer semantics
+										intersection.face.materialIndex = group.materialIndex;
+										intersects.push( intersection );
+
+									}
+
+								}
+
+							}
+
+						} else {
+
+							start = Math.max( 0, drawRange.start );
+							end = Math.min( position.count, ( drawRange.start + drawRange.count ) );
+
+							for ( i = start, il = end; i < il; i += 3 ) {
+
+								a = i;
+								b = i + 1;
+								c = i + 2;
+
+								intersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, morphPosition, uv, a, b, c );
+
+								if ( intersection ) {
+
+									intersection.faceIndex = Math.floor( i / 3 ); // triangle number in non-indexed buffer semantics
+									intersects.push( intersection );
+
+								}
+
+							}
+
+						}
+
+					}
+
+				} else if ( geometry.isGeometry ) {
+
+					var fvA, fvB, fvC;
+					var isMultiMaterial = Array.isArray( material );
+
+					var vertices = geometry.vertices;
+					var faces = geometry.faces;
+					var uvs;
+
+					var faceVertexUvs = geometry.faceVertexUvs[ 0 ];
+					if ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;
+
+					for ( var f = 0, fl = faces.length; f < fl; f ++ ) {
+
+						var face = faces[ f ];
+						var faceMaterial = isMultiMaterial ? material[ face.materialIndex ] : material;
+
+						if ( faceMaterial === undefined ) continue;
+
+						fvA = vertices[ face.a ];
+						fvB = vertices[ face.b ];
+						fvC = vertices[ face.c ];
+
+						intersection = checkIntersection( this, faceMaterial, raycaster, ray, fvA, fvB, fvC, intersectionPoint );
+
+						if ( intersection ) {
+
+							if ( uvs && uvs[ f ] ) {
+
+								var uvs_f = uvs[ f ];
+								uvA.copy( uvs_f[ 0 ] );
+								uvB.copy( uvs_f[ 1 ] );
+								uvC.copy( uvs_f[ 2 ] );
+
+								intersection.uv = Triangle.getUV( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC, new Vector2() );
+
+							}
+
+							intersection.face = face;
+							intersection.faceIndex = f;
+							intersects.push( intersection );
+
+						}
+
+					}
+
+				}
+
+			};
+
+		}() ),
+
+		clone: function () {
+
+			return new this.constructor( this.geometry, this.material ).copy( this );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLBackground( renderer, state, objects, premultipliedAlpha ) {
+
+		var clearColor = new Color( 0x000000 );
+		var clearAlpha = 0;
+
+		var planeMesh;
+		var boxMesh;
+		// Store the current background texture and its `version`
+		// so we can recompile the material accordingly.
+		var currentBackground = null;
+		var currentBackgroundVersion = 0;
+
+		function render( renderList, scene, camera, forceClear ) {
+
+			var background = scene.background;
+
+			// Ignore background in AR
+			// TODO: Reconsider this.
+
+			var vr = renderer.vr;
+			var session = vr.getSession && vr.getSession();
+
+			if ( session && session.environmentBlendMode === 'additive' ) {
+
+				background = null;
+
+			}
+
+			if ( background === null ) {
+
+				setClear( clearColor, clearAlpha );
+				currentBackground = null;
+				currentBackgroundVersion = 0;
+
+			} else if ( background && background.isColor ) {
+
+				setClear( background, 1 );
+				forceClear = true;
+				currentBackground = null;
+				currentBackgroundVersion = 0;
+
+			}
+
+			if ( renderer.autoClear || forceClear ) {
+
+				renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );
+
+			}
+
+			if ( background && ( background.isCubeTexture || background.isWebGLRenderTargetCube ) ) {
+
+				if ( boxMesh === undefined ) {
+
+					boxMesh = new Mesh(
+						new BoxBufferGeometry( 1, 1, 1 ),
+						new ShaderMaterial( {
+							type: 'BackgroundCubeMaterial',
+							uniforms: cloneUniforms( ShaderLib.cube.uniforms ),
+							vertexShader: ShaderLib.cube.vertexShader,
+							fragmentShader: ShaderLib.cube.fragmentShader,
+							side: BackSide,
+							depthTest: false,
+							depthWrite: false,
+							fog: false
+						} )
+					);
+
+					boxMesh.geometry.removeAttribute( 'normal' );
+					boxMesh.geometry.removeAttribute( 'uv' );
+
+					boxMesh.onBeforeRender = function ( renderer, scene, camera ) {
+
+						this.matrixWorld.copyPosition( camera.matrixWorld );
+
+					};
+
+					// enable code injection for non-built-in material
+					Object.defineProperty( boxMesh.material, 'map', {
+
+						get: function () {
+
+							return this.uniforms.tCube.value;
+
+						}
+
+					} );
+
+					objects.update( boxMesh );
+
+				}
+
+				var texture = background.isWebGLRenderTargetCube ? background.texture : background;
+				boxMesh.material.uniforms.tCube.value = texture;
+				boxMesh.material.uniforms.tFlip.value = ( background.isWebGLRenderTargetCube ) ? 1 : - 1;
+
+				if ( currentBackground !== background ||
+				     currentBackgroundVersion !== texture.version ) {
+
+					boxMesh.material.needsUpdate = true;
+
+					currentBackground = background;
+					currentBackgroundVersion = texture.version;
+
+				}
+
+				// push to the pre-sorted opaque render list
+				renderList.unshift( boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null );
+
+			} else if ( background && background.isTexture ) {
+
+				if ( planeMesh === undefined ) {
+
+					planeMesh = new Mesh(
+						new PlaneBufferGeometry( 2, 2 ),
+						new ShaderMaterial( {
+							type: 'BackgroundMaterial',
+							uniforms: cloneUniforms( ShaderLib.background.uniforms ),
+							vertexShader: ShaderLib.background.vertexShader,
+							fragmentShader: ShaderLib.background.fragmentShader,
+							side: FrontSide,
+							depthTest: false,
+							depthWrite: false,
+							fog: false
+						} )
+					);
+
+					planeMesh.geometry.removeAttribute( 'normal' );
+
+					// enable code injection for non-built-in material
+					Object.defineProperty( planeMesh.material, 'map', {
+
+						get: function () {
+
+							return this.uniforms.t2D.value;
+
+						}
+
+					} );
+
+					objects.update( planeMesh );
+
+				}
+
+				planeMesh.material.uniforms.t2D.value = background;
+
+				if ( background.matrixAutoUpdate === true ) {
+
+					background.updateMatrix();
+
+				}
+
+				planeMesh.material.uniforms.uvTransform.value.copy( background.matrix );
+
+				if ( currentBackground !== background ||
+					   currentBackgroundVersion !== background.version ) {
+
+					planeMesh.material.needsUpdate = true;
+
+					currentBackground = background;
+					currentBackgroundVersion = background.version;
+
+				}
+
+
+				// push to the pre-sorted opaque render list
+				renderList.unshift( planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null );
+
+			}
+
+		}
+
+		function setClear( color, alpha ) {
+
+			state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );
+
+		}
+
+		return {
+
+			getClearColor: function () {
+
+				return clearColor;
+
+			},
+			setClearColor: function ( color, alpha ) {
+
+				clearColor.set( color );
+				clearAlpha = alpha !== undefined ? alpha : 1;
+				setClear( clearColor, clearAlpha );
+
+			},
+			getClearAlpha: function () {
+
+				return clearAlpha;
+
+			},
+			setClearAlpha: function ( alpha ) {
+
+				clearAlpha = alpha;
+				setClear( clearColor, clearAlpha );
+
+			},
+			render: render
+
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLBufferRenderer( gl, extensions, info, capabilities ) {
+
+		var mode;
+
+		function setMode( value ) {
+
+			mode = value;
+
+		}
+
+		function render( start, count ) {
+
+			gl.drawArrays( mode, start, count );
+
+			info.update( count, mode );
+
+		}
+
+		function renderInstances( geometry, start, count ) {
+
+			var extension;
+
+			if ( capabilities.isWebGL2 ) {
+
+				extension = gl;
+
+			} else {
+
+				extension = extensions.get( 'ANGLE_instanced_arrays' );
+
+				if ( extension === null ) {
+
+					console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
+					return;
+
+				}
+
+			}
+
+			extension[ capabilities.isWebGL2 ? 'drawArraysInstanced' : 'drawArraysInstancedANGLE' ]( mode, start, count, geometry.maxInstancedCount );
+
+			info.update( count, mode, geometry.maxInstancedCount );
+
+		}
+
+		//
+
+		this.setMode = setMode;
+		this.render = render;
+		this.renderInstances = renderInstances;
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLCapabilities( gl, extensions, parameters ) {
+
+		var maxAnisotropy;
+
+		function getMaxAnisotropy() {
+
+			if ( maxAnisotropy !== undefined ) return maxAnisotropy;
+
+			var extension = extensions.get( 'EXT_texture_filter_anisotropic' );
+
+			if ( extension !== null ) {
+
+				maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );
+
+			} else {
+
+				maxAnisotropy = 0;
+
+			}
+
+			return maxAnisotropy;
+
+		}
+
+		function getMaxPrecision( precision ) {
+
+			if ( precision === 'highp' ) {
+
+				if ( gl.getShaderPrecisionFormat( 35633, 36338 ).precision > 0 &&
+				     gl.getShaderPrecisionFormat( 35632, 36338 ).precision > 0 ) {
+
+					return 'highp';
+
+				}
+
+				precision = 'mediump';
+
+			}
+
+			if ( precision === 'mediump' ) {
+
+				if ( gl.getShaderPrecisionFormat( 35633, 36337 ).precision > 0 &&
+				     gl.getShaderPrecisionFormat( 35632, 36337 ).precision > 0 ) {
+
+					return 'mediump';
+
+				}
+
+			}
+
+			return 'lowp';
+
+		}
+
+		var isWebGL2 = typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext;
+
+		var precision = parameters.precision !== undefined ? parameters.precision : 'highp';
+		var maxPrecision = getMaxPrecision( precision );
+
+		if ( maxPrecision !== precision ) {
+
+			console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );
+			precision = maxPrecision;
+
+		}
+
+		var logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;
+
+		var maxTextures = gl.getParameter( 34930 );
+		var maxVertexTextures = gl.getParameter( 35660 );
+		var maxTextureSize = gl.getParameter( 3379 );
+		var maxCubemapSize = gl.getParameter( 34076 );
+
+		var maxAttributes = gl.getParameter( 34921 );
+		var maxVertexUniforms = gl.getParameter( 36347 );
+		var maxVaryings = gl.getParameter( 36348 );
+		var maxFragmentUniforms = gl.getParameter( 36349 );
+
+		var vertexTextures = maxVertexTextures > 0;
+		var floatFragmentTextures = isWebGL2 || !! extensions.get( 'OES_texture_float' );
+		var floatVertexTextures = vertexTextures && floatFragmentTextures;
+
+		var maxSamples = isWebGL2 ? gl.getParameter( 36183 ) : 0;
+
+		return {
+
+			isWebGL2: isWebGL2,
+
+			getMaxAnisotropy: getMaxAnisotropy,
+			getMaxPrecision: getMaxPrecision,
+
+			precision: precision,
+			logarithmicDepthBuffer: logarithmicDepthBuffer,
+
+			maxTextures: maxTextures,
+			maxVertexTextures: maxVertexTextures,
+			maxTextureSize: maxTextureSize,
+			maxCubemapSize: maxCubemapSize,
+
+			maxAttributes: maxAttributes,
+			maxVertexUniforms: maxVertexUniforms,
+			maxVaryings: maxVaryings,
+			maxFragmentUniforms: maxFragmentUniforms,
+
+			vertexTextures: vertexTextures,
+			floatFragmentTextures: floatFragmentTextures,
+			floatVertexTextures: floatVertexTextures,
+
+			maxSamples: maxSamples
+
+		};
+
+	}
+
+	/**
+	 * @author tschw
+	 */
+
+	function WebGLClipping() {
+
+		var scope = this,
+
+			globalState = null,
+			numGlobalPlanes = 0,
+			localClippingEnabled = false,
+			renderingShadows = false,
+
+			plane = new Plane(),
+			viewNormalMatrix = new Matrix3(),
+
+			uniform = { value: null, needsUpdate: false };
+
+		this.uniform = uniform;
+		this.numPlanes = 0;
+		this.numIntersection = 0;
+
+		this.init = function ( planes, enableLocalClipping, camera ) {
+
+			var enabled =
+				planes.length !== 0 ||
+				enableLocalClipping ||
+				// enable state of previous frame - the clipping code has to
+				// run another frame in order to reset the state:
+				numGlobalPlanes !== 0 ||
+				localClippingEnabled;
+
+			localClippingEnabled = enableLocalClipping;
+
+			globalState = projectPlanes( planes, camera, 0 );
+			numGlobalPlanes = planes.length;
+
+			return enabled;
+
+		};
+
+		this.beginShadows = function () {
+
+			renderingShadows = true;
+			projectPlanes( null );
+
+		};
+
+		this.endShadows = function () {
+
+			renderingShadows = false;
+			resetGlobalState();
+
+		};
+
+		this.setState = function ( planes, clipIntersection, clipShadows, camera, cache, fromCache ) {
+
+			if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {
+
+				// there's no local clipping
+
+				if ( renderingShadows ) {
+
+					// there's no global clipping
+
+					projectPlanes( null );
+
+				} else {
+
+					resetGlobalState();
+
+				}
+
+			} else {
+
+				var nGlobal = renderingShadows ? 0 : numGlobalPlanes,
+					lGlobal = nGlobal * 4,
+
+					dstArray = cache.clippingState || null;
+
+				uniform.value = dstArray; // ensure unique state
+
+				dstArray = projectPlanes( planes, camera, lGlobal, fromCache );
+
+				for ( var i = 0; i !== lGlobal; ++ i ) {
+
+					dstArray[ i ] = globalState[ i ];
+
+				}
+
+				cache.clippingState = dstArray;
+				this.numIntersection = clipIntersection ? this.numPlanes : 0;
+				this.numPlanes += nGlobal;
+
+			}
+
+
+		};
+
+		function resetGlobalState() {
+
+			if ( uniform.value !== globalState ) {
+
+				uniform.value = globalState;
+				uniform.needsUpdate = numGlobalPlanes > 0;
+
+			}
+
+			scope.numPlanes = numGlobalPlanes;
+			scope.numIntersection = 0;
+
+		}
+
+		function projectPlanes( planes, camera, dstOffset, skipTransform ) {
+
+			var nPlanes = planes !== null ? planes.length : 0,
+				dstArray = null;
+
+			if ( nPlanes !== 0 ) {
+
+				dstArray = uniform.value;
+
+				if ( skipTransform !== true || dstArray === null ) {
+
+					var flatSize = dstOffset + nPlanes * 4,
+						viewMatrix = camera.matrixWorldInverse;
+
+					viewNormalMatrix.getNormalMatrix( viewMatrix );
+
+					if ( dstArray === null || dstArray.length < flatSize ) {
+
+						dstArray = new Float32Array( flatSize );
+
+					}
+
+					for ( var i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {
+
+						plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );
+
+						plane.normal.toArray( dstArray, i4 );
+						dstArray[ i4 + 3 ] = plane.constant;
+
+					}
+
+				}
+
+				uniform.value = dstArray;
+				uniform.needsUpdate = true;
+
+			}
+
+			scope.numPlanes = nPlanes;
+
+			return dstArray;
+
+		}
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLExtensions( gl ) {
+
+		var extensions = {};
+
+		return {
+
+			get: function ( name ) {
+
+				if ( extensions[ name ] !== undefined ) {
+
+					return extensions[ name ];
+
+				}
+
+				var extension;
+
+				switch ( name ) {
+
+					case 'WEBGL_depth_texture':
+						extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );
+						break;
+
+					case 'EXT_texture_filter_anisotropic':
+						extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );
+						break;
+
+					case 'WEBGL_compressed_texture_s3tc':
+						extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );
+						break;
+
+					case 'WEBGL_compressed_texture_pvrtc':
+						extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
+						break;
+
+					default:
+						extension = gl.getExtension( name );
+
+				}
+
+				if ( extension === null ) {
+
+					console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );
+
+				}
+
+				extensions[ name ] = extension;
+
+				return extension;
+
+			}
+
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLGeometries( gl, attributes, info ) {
+
+		var geometries = {};
+		var wireframeAttributes = {};
+
+		function onGeometryDispose( event ) {
+
+			var geometry = event.target;
+			var buffergeometry = geometries[ geometry.id ];
+
+			if ( buffergeometry.index !== null ) {
+
+				attributes.remove( buffergeometry.index );
+
+			}
+
+			for ( var name in buffergeometry.attributes ) {
+
+				attributes.remove( buffergeometry.attributes[ name ] );
+
+			}
+
+			geometry.removeEventListener( 'dispose', onGeometryDispose );
+
+			delete geometries[ geometry.id ];
+
+			var attribute = wireframeAttributes[ buffergeometry.id ];
+
+			if ( attribute ) {
+
+				attributes.remove( attribute );
+				delete wireframeAttributes[ buffergeometry.id ];
+
+			}
+
+			//
+
+			info.memory.geometries --;
+
+		}
+
+		function get( object, geometry ) {
+
+			var buffergeometry = geometries[ geometry.id ];
+
+			if ( buffergeometry ) return buffergeometry;
+
+			geometry.addEventListener( 'dispose', onGeometryDispose );
+
+			if ( geometry.isBufferGeometry ) {
+
+				buffergeometry = geometry;
+
+			} else if ( geometry.isGeometry ) {
+
+				if ( geometry._bufferGeometry === undefined ) {
+
+					geometry._bufferGeometry = new BufferGeometry().setFromObject( object );
+
+				}
+
+				buffergeometry = geometry._bufferGeometry;
+
+			}
+
+			geometries[ geometry.id ] = buffergeometry;
+
+			info.memory.geometries ++;
+
+			return buffergeometry;
+
+		}
+
+		function update( geometry ) {
+
+			var index = geometry.index;
+			var geometryAttributes = geometry.attributes;
+
+			if ( index !== null ) {
+
+				attributes.update( index, 34963 );
+
+			}
+
+			for ( var name in geometryAttributes ) {
+
+				attributes.update( geometryAttributes[ name ], 34962 );
+
+			}
+
+			// morph targets
+
+			var morphAttributes = geometry.morphAttributes;
+
+			for ( var name in morphAttributes ) {
+
+				var array = morphAttributes[ name ];
+
+				for ( var i = 0, l = array.length; i < l; i ++ ) {
+
+					attributes.update( array[ i ], 34962 );
+
+				}
+
+			}
+
+		}
+
+		function getWireframeAttribute( geometry ) {
+
+			var attribute = wireframeAttributes[ geometry.id ];
+
+			if ( attribute ) return attribute;
+
+			var indices = [];
+
+			var geometryIndex = geometry.index;
+			var geometryAttributes = geometry.attributes;
+
+			// console.time( 'wireframe' );
+
+			if ( geometryIndex !== null ) {
+
+				var array = geometryIndex.array;
+
+				for ( var i = 0, l = array.length; i < l; i += 3 ) {
+
+					var a = array[ i + 0 ];
+					var b = array[ i + 1 ];
+					var c = array[ i + 2 ];
+
+					indices.push( a, b, b, c, c, a );
+
+				}
+
+			} else {
+
+				var array = geometryAttributes.position.array;
+
+				for ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {
+
+					var a = i + 0;
+					var b = i + 1;
+					var c = i + 2;
+
+					indices.push( a, b, b, c, c, a );
+
+				}
+
+			}
+
+			// console.timeEnd( 'wireframe' );
+
+			attribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );
+
+			attributes.update( attribute, 34963 );
+
+			wireframeAttributes[ geometry.id ] = attribute;
+
+			return attribute;
+
+		}
+
+		return {
+
+			get: get,
+			update: update,
+
+			getWireframeAttribute: getWireframeAttribute
+
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLIndexedBufferRenderer( gl, extensions, info, capabilities ) {
+
+		var mode;
+
+		function setMode( value ) {
+
+			mode = value;
+
+		}
+
+		var type, bytesPerElement;
+
+		function setIndex( value ) {
+
+			type = value.type;
+			bytesPerElement = value.bytesPerElement;
+
+		}
+
+		function render( start, count ) {
+
+			gl.drawElements( mode, count, type, start * bytesPerElement );
+
+			info.update( count, mode );
+
+		}
+
+		function renderInstances( geometry, start, count ) {
+
+			var extension;
+
+			if ( capabilities.isWebGL2 ) {
+
+				extension = gl;
+
+			} else {
+
+				var extension = extensions.get( 'ANGLE_instanced_arrays' );
+
+				if ( extension === null ) {
+
+					console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
+					return;
+
+				}
+
+			}
+
+			extension[ capabilities.isWebGL2 ? 'drawElementsInstanced' : 'drawElementsInstancedANGLE' ]( mode, count, type, start * bytesPerElement, geometry.maxInstancedCount );
+
+			info.update( count, mode, geometry.maxInstancedCount );
+
+		}
+
+		//
+
+		this.setMode = setMode;
+		this.setIndex = setIndex;
+		this.render = render;
+		this.renderInstances = renderInstances;
+
+	}
+
+	/**
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	function WebGLInfo( gl ) {
+
+		var memory = {
+			geometries: 0,
+			textures: 0
+		};
+
+		var render = {
+			frame: 0,
+			calls: 0,
+			triangles: 0,
+			points: 0,
+			lines: 0
+		};
+
+		function update( count, mode, instanceCount ) {
+
+			instanceCount = instanceCount || 1;
+
+			render.calls ++;
+
+			switch ( mode ) {
+
+				case 4:
+					render.triangles += instanceCount * ( count / 3 );
+					break;
+
+				case 5:
+				case 6:
+					render.triangles += instanceCount * ( count - 2 );
+					break;
+
+				case 1:
+					render.lines += instanceCount * ( count / 2 );
+					break;
+
+				case 3:
+					render.lines += instanceCount * ( count - 1 );
+					break;
+
+				case 2:
+					render.lines += instanceCount * count;
+					break;
+
+				case 0:
+					render.points += instanceCount * count;
+					break;
+
+				default:
+					console.error( 'THREE.WebGLInfo: Unknown draw mode:', mode );
+					break;
+
+			}
+
+		}
+
+		function reset() {
+
+			render.frame ++;
+			render.calls = 0;
+			render.triangles = 0;
+			render.points = 0;
+			render.lines = 0;
+
+		}
+
+		return {
+			memory: memory,
+			render: render,
+			programs: null,
+			autoReset: true,
+			reset: reset,
+			update: update
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function absNumericalSort( a, b ) {
+
+		return Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] );
+
+	}
+
+	function WebGLMorphtargets( gl ) {
+
+		var influencesList = {};
+		var morphInfluences = new Float32Array( 8 );
+
+		function update( object, geometry, material, program ) {
+
+			var objectInfluences = object.morphTargetInfluences;
+
+			var length = objectInfluences.length;
+
+			var influences = influencesList[ geometry.id ];
+
+			if ( influences === undefined ) {
+
+				// initialise list
+
+				influences = [];
+
+				for ( var i = 0; i < length; i ++ ) {
+
+					influences[ i ] = [ i, 0 ];
+
+				}
+
+				influencesList[ geometry.id ] = influences;
+
+			}
+
+			var morphTargets = material.morphTargets && geometry.morphAttributes.position;
+			var morphNormals = material.morphNormals && geometry.morphAttributes.normal;
+
+			// Remove current morphAttributes
+
+			for ( var i = 0; i < length; i ++ ) {
+
+				var influence = influences[ i ];
+
+				if ( influence[ 1 ] !== 0 ) {
+
+					if ( morphTargets ) geometry.removeAttribute( 'morphTarget' + i );
+					if ( morphNormals ) geometry.removeAttribute( 'morphNormal' + i );
+
+				}
+
+			}
+
+			// Collect influences
+
+			for ( var i = 0; i < length; i ++ ) {
+
+				var influence = influences[ i ];
+
+				influence[ 0 ] = i;
+				influence[ 1 ] = objectInfluences[ i ];
+
+			}
+
+			influences.sort( absNumericalSort );
+
+			// Add morphAttributes
+
+			for ( var i = 0; i < 8; i ++ ) {
+
+				var influence = influences[ i ];
+
+				if ( influence ) {
+
+					var index = influence[ 0 ];
+					var value = influence[ 1 ];
+
+					if ( value ) {
+
+						if ( morphTargets ) geometry.addAttribute( 'morphTarget' + i, morphTargets[ index ] );
+						if ( morphNormals ) geometry.addAttribute( 'morphNormal' + i, morphNormals[ index ] );
+
+						morphInfluences[ i ] = value;
+						continue;
+
+					}
+
+				}
+
+				morphInfluences[ i ] = 0;
+
+			}
+
+			program.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences );
+
+		}
+
+		return {
+
+			update: update
+
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLObjects( geometries, info ) {
+
+		var updateList = {};
+
+		function update( object ) {
+
+			var frame = info.render.frame;
+
+			var geometry = object.geometry;
+			var buffergeometry = geometries.get( object, geometry );
+
+			// Update once per frame
+
+			if ( updateList[ buffergeometry.id ] !== frame ) {
+
+				if ( geometry.isGeometry ) {
+
+					buffergeometry.updateFromObject( object );
+
+				}
+
+				geometries.update( buffergeometry );
+
+				updateList[ buffergeometry.id ] = frame;
+
+			}
+
+			return buffergeometry;
+
+		}
+
+		function dispose() {
+
+			updateList = {};
+
+		}
+
+		return {
+
+			update: update,
+			dispose: dispose
+
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {
+
+		images = images !== undefined ? images : [];
+		mapping = mapping !== undefined ? mapping : CubeReflectionMapping;
+		format = format !== undefined ? format : RGBFormat;
+
+		Texture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
+
+		this.flipY = false;
+
+	}
+
+	CubeTexture.prototype = Object.create( Texture.prototype );
+	CubeTexture.prototype.constructor = CubeTexture;
+
+	CubeTexture.prototype.isCubeTexture = true;
+
+	Object.defineProperty( CubeTexture.prototype, 'images', {
+
+		get: function () {
+
+			return this.image;
+
+		},
+
+		set: function ( value ) {
+
+			this.image = value;
+
+		}
+
+	} );
+
+	/**
+	 * @author Takahiro https://github.com/takahirox
+	 */
+
+	function DataTexture2DArray( data, width, height, depth ) {
+
+		Texture.call( this, null );
+
+		this.image = { data: data, width: width, height: height, depth: depth };
+
+		this.magFilter = NearestFilter;
+		this.minFilter = NearestFilter;
+
+		this.wrapR = ClampToEdgeWrapping;
+
+		this.generateMipmaps = false;
+		this.flipY = false;
+
+	}
+
+	DataTexture2DArray.prototype = Object.create( Texture.prototype );
+	DataTexture2DArray.prototype.constructor = DataTexture2DArray;
+	DataTexture2DArray.prototype.isDataTexture2DArray = true;
+
+	/**
+	 * @author Artur Trzesiok
+	 */
+
+	function DataTexture3D( data, width, height, depth ) {
+
+		// We're going to add .setXXX() methods for setting properties later.
+		// Users can still set in DataTexture3D directly.
+		//
+		//	var texture = new THREE.DataTexture3D( data, width, height, depth );
+		// 	texture.anisotropy = 16;
+		//
+		// See #14839
+
+		Texture.call( this, null );
+
+		this.image = { data: data, width: width, height: height, depth: depth };
+
+		this.magFilter = NearestFilter;
+		this.minFilter = NearestFilter;
+
+		this.wrapR = ClampToEdgeWrapping;
+
+		this.generateMipmaps = false;
+		this.flipY = false;
+
+	}
+
+	DataTexture3D.prototype = Object.create( Texture.prototype );
+	DataTexture3D.prototype.constructor = DataTexture3D;
+	DataTexture3D.prototype.isDataTexture3D = true;
+
+	/**
+	 * @author tschw
+	 * @author Mugen87 / https://github.com/Mugen87
+	 * @author mrdoob / http://mrdoob.com/
+	 *
+	 * Uniforms of a program.
+	 * Those form a tree structure with a special top-level container for the root,
+	 * which you get by calling 'new WebGLUniforms( gl, program )'.
+	 *
+	 *
+	 * Properties of inner nodes including the top-level container:
+	 *
+	 * .seq - array of nested uniforms
+	 * .map - nested uniforms by name
+	 *
+	 *
+	 * Methods of all nodes except the top-level container:
+	 *
+	 * .setValue( gl, value, [textures] )
+	 *
+	 * 		uploads a uniform value(s)
+	 *  	the 'textures' parameter is needed for sampler uniforms
+	 *
+	 *
+	 * Static methods of the top-level container (textures factorizations):
+	 *
+	 * .upload( gl, seq, values, textures )
+	 *
+	 * 		sets uniforms in 'seq' to 'values[id].value'
+	 *
+	 * .seqWithValue( seq, values ) : filteredSeq
+	 *
+	 * 		filters 'seq' entries with corresponding entry in values
+	 *
+	 *
+	 * Methods of the top-level container (textures factorizations):
+	 *
+	 * .setValue( gl, name, value, textures )
+	 *
+	 * 		sets uniform with  name 'name' to 'value'
+	 *
+	 * .setOptional( gl, obj, prop )
+	 *
+	 * 		like .set for an optional property of the object
+	 *
+	 */
+
+	var emptyTexture = new Texture();
+	var emptyTexture2dArray = new DataTexture2DArray();
+	var emptyTexture3d = new DataTexture3D();
+	var emptyCubeTexture = new CubeTexture();
+
+	// --- Utilities ---
+
+	// Array Caches (provide typed arrays for temporary by size)
+
+	var arrayCacheF32 = [];
+	var arrayCacheI32 = [];
+
+	// Float32Array caches used for uploading Matrix uniforms
+
+	var mat4array = new Float32Array( 16 );
+	var mat3array = new Float32Array( 9 );
+	var mat2array = new Float32Array( 4 );
+
+	// Flattening for arrays of vectors and matrices
+
+	function flatten( array, nBlocks, blockSize ) {
+
+		var firstElem = array[ 0 ];
+
+		if ( firstElem <= 0 || firstElem > 0 ) return array;
+		// unoptimized: ! isNaN( firstElem )
+		// see http://jacksondunstan.com/articles/983
+
+		var n = nBlocks * blockSize,
+			r = arrayCacheF32[ n ];
+
+		if ( r === undefined ) {
+
+			r = new Float32Array( n );
+			arrayCacheF32[ n ] = r;
+
+		}
+
+		if ( nBlocks !== 0 ) {
+
+			firstElem.toArray( r, 0 );
+
+			for ( var i = 1, offset = 0; i !== nBlocks; ++ i ) {
+
+				offset += blockSize;
+				array[ i ].toArray( r, offset );
+
+			}
+
+		}
+
+		return r;
+
+	}
+
+	function arraysEqual( a, b ) {
+
+		if ( a.length !== b.length ) return false;
+
+		for ( var i = 0, l = a.length; i < l; i ++ ) {
+
+			if ( a[ i ] !== b[ i ] ) return false;
+
+		}
+
+		return true;
+
+	}
+
+	function copyArray( a, b ) {
+
+		for ( var i = 0, l = b.length; i < l; i ++ ) {
+
+			a[ i ] = b[ i ];
+
+		}
+
+	}
+
+	// Texture unit allocation
+
+	function allocTexUnits( textures, n ) {
+
+		var r = arrayCacheI32[ n ];
+
+		if ( r === undefined ) {
+
+			r = new Int32Array( n );
+			arrayCacheI32[ n ] = r;
+
+		}
+
+		for ( var i = 0; i !== n; ++ i )
+			r[ i ] = textures.allocateTextureUnit();
+
+		return r;
+
+	}
+
+	// --- Setters ---
+
+	// Note: Defining these methods externally, because they come in a bunch
+	// and this way their names minify.
+
+	// Single scalar
+
+	function setValueV1f( gl, v ) {
+
+		var cache = this.cache;
+
+		if ( cache[ 0 ] === v ) return;
+
+		gl.uniform1f( this.addr, v );
+
+		cache[ 0 ] = v;
+
+	}
+
+	// Single float vector (from flat array or THREE.VectorN)
+
+	function setValueV2f( gl, v ) {
+
+		var cache = this.cache;
+
+		if ( v.x !== undefined ) {
+
+			if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y ) {
+
+				gl.uniform2f( this.addr, v.x, v.y );
+
+				cache[ 0 ] = v.x;
+				cache[ 1 ] = v.y;
+
+			}
+
+		} else {
+
+			if ( arraysEqual( cache, v ) ) return;
+
+			gl.uniform2fv( this.addr, v );
+
+			copyArray( cache, v );
+
+		}
+
+	}
+
+	function setValueV3f( gl, v ) {
+
+		var cache = this.cache;
+
+		if ( v.x !== undefined ) {
+
+			if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z ) {
+
+				gl.uniform3f( this.addr, v.x, v.y, v.z );
+
+				cache[ 0 ] = v.x;
+				cache[ 1 ] = v.y;
+				cache[ 2 ] = v.z;
+
+			}
+
+		} else if ( v.r !== undefined ) {
+
+			if ( cache[ 0 ] !== v.r || cache[ 1 ] !== v.g || cache[ 2 ] !== v.b ) {
+
+				gl.uniform3f( this.addr, v.r, v.g, v.b );
+
+				cache[ 0 ] = v.r;
+				cache[ 1 ] = v.g;
+				cache[ 2 ] = v.b;
+
+			}
+
+		} else {
+
+			if ( arraysEqual( cache, v ) ) return;
+
+			gl.uniform3fv( this.addr, v );
+
+			copyArray( cache, v );
+
+		}
+
+	}
+
+	function setValueV4f( gl, v ) {
+
+		var cache = this.cache;
+
+		if ( v.x !== undefined ) {
+
+			if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z || cache[ 3 ] !== v.w ) {
+
+				gl.uniform4f( this.addr, v.x, v.y, v.z, v.w );
+
+				cache[ 0 ] = v.x;
+				cache[ 1 ] = v.y;
+				cache[ 2 ] = v.z;
+				cache[ 3 ] = v.w;
+
+			}
+
+		} else {
+
+			if ( arraysEqual( cache, v ) ) return;
+
+			gl.uniform4fv( this.addr, v );
+
+			copyArray( cache, v );
+
+		}
+
+	}
+
+	// Single matrix (from flat array or MatrixN)
+
+	function setValueM2( gl, v ) {
+
+		var cache = this.cache;
+		var elements = v.elements;
+
+		if ( elements === undefined ) {
+
+			if ( arraysEqual( cache, v ) ) return;
+
+			gl.uniformMatrix2fv( this.addr, false, v );
+
+			copyArray( cache, v );
+
+		} else {
+
+			if ( arraysEqual( cache, elements ) ) return;
+
+			mat2array.set( elements );
+
+			gl.uniformMatrix2fv( this.addr, false, mat2array );
+
+			copyArray( cache, elements );
+
+		}
+
+	}
+
+	function setValueM3( gl, v ) {
+
+		var cache = this.cache;
+		var elements = v.elements;
+
+		if ( elements === undefined ) {
+
+			if ( arraysEqual( cache, v ) ) return;
+
+			gl.uniformMatrix3fv( this.addr, false, v );
+
+			copyArray( cache, v );
+
+		} else {
+
+			if ( arraysEqual( cache, elements ) ) return;
+
+			mat3array.set( elements );
+
+			gl.uniformMatrix3fv( this.addr, false, mat3array );
+
+			copyArray( cache, elements );
+
+		}
+
+	}
+
+	function setValueM4( gl, v ) {
+
+		var cache = this.cache;
+		var elements = v.elements;
+
+		if ( elements === undefined ) {
+
+			if ( arraysEqual( cache, v ) ) return;
+
+			gl.uniformMatrix4fv( this.addr, false, v );
+
+			copyArray( cache, v );
+
+		} else {
+
+			if ( arraysEqual( cache, elements ) ) return;
+
+			mat4array.set( elements );
+
+			gl.uniformMatrix4fv( this.addr, false, mat4array );
+
+			copyArray( cache, elements );
+
+		}
+
+	}
+
+	// Single texture (2D / Cube)
+
+	function setValueT1( gl, v, textures ) {
+
+		var cache = this.cache;
+		var unit = textures.allocateTextureUnit();
+
+		if ( cache[ 0 ] !== unit ) {
+
+			gl.uniform1i( this.addr, unit );
+			cache[ 0 ] = unit;
+
+		}
+
+		textures.safeSetTexture2D( v || emptyTexture, unit );
+
+	}
+
+	function setValueT2DArray1( gl, v, textures ) {
+
+		var cache = this.cache;
+		var unit = textures.allocateTextureUnit();
+
+		if ( cache[ 0 ] !== unit ) {
+
+			gl.uniform1i( this.addr, unit );
+			cache[ 0 ] = unit;
+
+		}
+
+		textures.setTexture2DArray( v || emptyTexture2dArray, unit );
+
+	}
+
+	function setValueT3D1( gl, v, textures ) {
+
+		var cache = this.cache;
+		var unit = textures.allocateTextureUnit();
+
+		if ( cache[ 0 ] !== unit ) {
+
+			gl.uniform1i( this.addr, unit );
+			cache[ 0 ] = unit;
+
+		}
+
+		textures.setTexture3D( v || emptyTexture3d, unit );
+
+	}
+
+	function setValueT6( gl, v, textures ) {
+
+		var cache = this.cache;
+		var unit = textures.allocateTextureUnit();
+
+		if ( cache[ 0 ] !== unit ) {
+
+			gl.uniform1i( this.addr, unit );
+			cache[ 0 ] = unit;
+
+		}
+
+		textures.safeSetTextureCube( v || emptyCubeTexture, unit );
+
+	}
+
+	// Integer / Boolean vectors or arrays thereof (always flat arrays)
+
+	function setValueV1i( gl, v ) {
+
+		var cache = this.cache;
+
+		if ( cache[ 0 ] === v ) return;
+
+		gl.uniform1i( this.addr, v );
+
+		cache[ 0 ] = v;
+
+	}
+
+	function setValueV2i( gl, v ) {
+
+		var cache = this.cache;
+
+		if ( arraysEqual( cache, v ) ) return;
+
+		gl.uniform2iv( this.addr, v );
+
+		copyArray( cache, v );
+
+	}
+
+	function setValueV3i( gl, v ) {
+
+		var cache = this.cache;
+
+		if ( arraysEqual( cache, v ) ) return;
+
+		gl.uniform3iv( this.addr, v );
+
+		copyArray( cache, v );
+
+	}
+
+	function setValueV4i( gl, v ) {
+
+		var cache = this.cache;
+
+		if ( arraysEqual( cache, v ) ) return;
+
+		gl.uniform4iv( this.addr, v );
+
+		copyArray( cache, v );
+
+	}
+
+	// Helper to pick the right setter for the singular case
+
+	function getSingularSetter( type ) {
+
+		switch ( type ) {
+
+			case 0x1406: return setValueV1f; // FLOAT
+			case 0x8b50: return setValueV2f; // _VEC2
+			case 0x8b51: return setValueV3f; // _VEC3
+			case 0x8b52: return setValueV4f; // _VEC4
+
+			case 0x8b5a: return setValueM2; // _MAT2
+			case 0x8b5b: return setValueM3; // _MAT3
+			case 0x8b5c: return setValueM4; // _MAT4
+
+			case 0x8b5e: case 0x8d66: return setValueT1; // SAMPLER_2D, SAMPLER_EXTERNAL_OES
+			case 0x8b5f: return setValueT3D1; // SAMPLER_3D
+			case 0x8b60: return setValueT6; // SAMPLER_CUBE
+			case 0x8DC1: return setValueT2DArray1; // SAMPLER_2D_ARRAY
+
+			case 0x1404: case 0x8b56: return setValueV1i; // INT, BOOL
+			case 0x8b53: case 0x8b57: return setValueV2i; // _VEC2
+			case 0x8b54: case 0x8b58: return setValueV3i; // _VEC3
+			case 0x8b55: case 0x8b59: return setValueV4i; // _VEC4
+
+		}
+
+	}
+
+	// Array of scalars
+	function setValueV1fArray( gl, v ) {
+
+		gl.uniform1fv( this.addr, v );
+
+	}
+
+	// Integer / Boolean vectors or arrays thereof (always flat arrays)
+	function setValueV1iArray( gl, v ) {
+
+		gl.uniform1iv( this.addr, v );
+
+	}
+
+	function setValueV2iArray( gl, v ) {
+
+		gl.uniform2iv( this.addr, v );
+
+	}
+
+	function setValueV3iArray( gl, v ) {
+
+		gl.uniform3iv( this.addr, v );
+
+	}
+
+	function setValueV4iArray( gl, v ) {
+
+		gl.uniform4iv( this.addr, v );
+
+	}
+
+
+	// Array of vectors (flat or from THREE classes)
+
+	function setValueV2fArray( gl, v ) {
+
+		var data = flatten( v, this.size, 2 );
+
+		gl.uniform2fv( this.addr, data );
+
+	}
+
+	function setValueV3fArray( gl, v ) {
+
+		var data = flatten( v, this.size, 3 );
+
+		gl.uniform3fv( this.addr, data );
+
+	}
+
+	function setValueV4fArray( gl, v ) {
+
+		var data = flatten( v, this.size, 4 );
+
+		gl.uniform4fv( this.addr, data );
+
+	}
+
+	// Array of matrices (flat or from THREE clases)
+
+	function setValueM2Array( gl, v ) {
+
+		var data = flatten( v, this.size, 4 );
+
+		gl.uniformMatrix2fv( this.addr, false, data );
+
+	}
+
+	function setValueM3Array( gl, v ) {
+
+		var data = flatten( v, this.size, 9 );
+
+		gl.uniformMatrix3fv( this.addr, false, data );
+
+	}
+
+	function setValueM4Array( gl, v ) {
+
+		var data = flatten( v, this.size, 16 );
+
+		gl.uniformMatrix4fv( this.addr, false, data );
+
+	}
+
+	// Array of textures (2D / Cube)
+
+	function setValueT1Array( gl, v, textures ) {
+
+		var n = v.length;
+
+		var units = allocTexUnits( textures, n );
+
+		gl.uniform1iv( this.addr, units );
+
+		for ( var i = 0; i !== n; ++ i ) {
+
+			textures.safeSetTexture2D( v[ i ] || emptyTexture, units[ i ] );
+
+		}
+
+	}
+
+	function setValueT6Array( gl, v, textures ) {
+
+		var n = v.length;
+
+		var units = allocTexUnits( textures, n );
+
+		gl.uniform1iv( this.addr, units );
+
+		for ( var i = 0; i !== n; ++ i ) {
+
+			textures.safeSetTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );
+
+		}
+
+	}
+
+	// Helper to pick the right setter for a pure (bottom-level) array
+
+	function getPureArraySetter( type ) {
+
+		switch ( type ) {
+
+			case 0x1406: return setValueV1fArray; // FLOAT
+			case 0x8b50: return setValueV2fArray; // _VEC2
+			case 0x8b51: return setValueV3fArray; // _VEC3
+			case 0x8b52: return setValueV4fArray; // _VEC4
+
+			case 0x8b5a: return setValueM2Array; // _MAT2
+			case 0x8b5b: return setValueM3Array; // _MAT3
+			case 0x8b5c: return setValueM4Array; // _MAT4
+
+			case 0x8b5e: return setValueT1Array; // SAMPLER_2D
+			case 0x8b60: return setValueT6Array; // SAMPLER_CUBE
+
+			case 0x1404: case 0x8b56: return setValueV1iArray; // INT, BOOL
+			case 0x8b53: case 0x8b57: return setValueV2iArray; // _VEC2
+			case 0x8b54: case 0x8b58: return setValueV3iArray; // _VEC3
+			case 0x8b55: case 0x8b59: return setValueV4iArray; // _VEC4
+
+		}
+
+	}
+
+	// --- Uniform Classes ---
+
+	function SingleUniform( id, activeInfo, addr ) {
+
+		this.id = id;
+		this.addr = addr;
+		this.cache = [];
+		this.setValue = getSingularSetter( activeInfo.type );
+
+		// this.path = activeInfo.name; // DEBUG
+
+	}
+
+	function PureArrayUniform( id, activeInfo, addr ) {
+
+		this.id = id;
+		this.addr = addr;
+		this.cache = [];
+		this.size = activeInfo.size;
+		this.setValue = getPureArraySetter( activeInfo.type );
+
+		// this.path = activeInfo.name; // DEBUG
+
+	}
+
+	PureArrayUniform.prototype.updateCache = function ( data ) {
+
+		var cache = this.cache;
+
+		if ( data instanceof Float32Array && cache.length !== data.length ) {
+
+			this.cache = new Float32Array( data.length );
+
+		}
+
+		copyArray( cache, data );
+
+	};
+
+	function StructuredUniform( id ) {
+
+		this.id = id;
+
+		this.seq = [];
+		this.map = {};
+
+	}
+
+	StructuredUniform.prototype.setValue = function ( gl, value, textures ) {
+
+		var seq = this.seq;
+
+		for ( var i = 0, n = seq.length; i !== n; ++ i ) {
+
+			var u = seq[ i ];
+			u.setValue( gl, value[ u.id ], textures );
+
+		}
+
+	};
+
+	// --- Top-level ---
+
+	// Parser - builds up the property tree from the path strings
+
+	var RePathPart = /([\w\d_]+)(\])?(\[|\.)?/g;
+
+	// extracts
+	// 	- the identifier (member name or array index)
+	//  - followed by an optional right bracket (found when array index)
+	//  - followed by an optional left bracket or dot (type of subscript)
+	//
+	// Note: These portions can be read in a non-overlapping fashion and
+	// allow straightforward parsing of the hierarchy that WebGL encodes
+	// in the uniform names.
+
+	function addUniform( container, uniformObject ) {
+
+		container.seq.push( uniformObject );
+		container.map[ uniformObject.id ] = uniformObject;
+
+	}
+
+	function parseUniform( activeInfo, addr, container ) {
+
+		var path = activeInfo.name,
+			pathLength = path.length;
+
+		// reset RegExp object, because of the early exit of a previous run
+		RePathPart.lastIndex = 0;
+
+		while ( true ) {
+
+			var match = RePathPart.exec( path ),
+				matchEnd = RePathPart.lastIndex,
+
+				id = match[ 1 ],
+				idIsIndex = match[ 2 ] === ']',
+				subscript = match[ 3 ];
+
+			if ( idIsIndex ) id = id | 0; // convert to integer
+
+			if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {
+
+				// bare name or "pure" bottom-level array "[0]" suffix
+
+				addUniform( container, subscript === undefined ?
+					new SingleUniform( id, activeInfo, addr ) :
+					new PureArrayUniform( id, activeInfo, addr ) );
+
+				break;
+
+			} else {
+
+				// step into inner node / create it in case it doesn't exist
+
+				var map = container.map, next = map[ id ];
+
+				if ( next === undefined ) {
+
+					next = new StructuredUniform( id );
+					addUniform( container, next );
+
+				}
+
+				container = next;
+
+			}
+
+		}
+
+	}
+
+	// Root Container
+
+	function WebGLUniforms( gl, program ) {
+
+		this.seq = [];
+		this.map = {};
+
+		var n = gl.getProgramParameter( program, 35718 );
+
+		for ( var i = 0; i < n; ++ i ) {
+
+			var info = gl.getActiveUniform( program, i ),
+				addr = gl.getUniformLocation( program, info.name );
+
+			parseUniform( info, addr, this );
+
+		}
+
+	}
+
+	WebGLUniforms.prototype.setValue = function ( gl, name, value, textures ) {
+
+		var u = this.map[ name ];
+
+		if ( u !== undefined ) u.setValue( gl, value, textures );
+
+	};
+
+	WebGLUniforms.prototype.setOptional = function ( gl, object, name ) {
+
+		var v = object[ name ];
+
+		if ( v !== undefined ) this.setValue( gl, name, v );
+
+	};
+
+
+	// Static interface
+
+	WebGLUniforms.upload = function ( gl, seq, values, textures ) {
+
+		for ( var i = 0, n = seq.length; i !== n; ++ i ) {
+
+			var u = seq[ i ],
+				v = values[ u.id ];
+
+			if ( v.needsUpdate !== false ) {
+
+				// note: always updating when .needsUpdate is undefined
+				u.setValue( gl, v.value, textures );
+
+			}
+
+		}
+
+	};
+
+	WebGLUniforms.seqWithValue = function ( seq, values ) {
+
+		var r = [];
+
+		for ( var i = 0, n = seq.length; i !== n; ++ i ) {
+
+			var u = seq[ i ];
+			if ( u.id in values ) r.push( u );
+
+		}
+
+		return r;
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function addLineNumbers( string ) {
+
+		var lines = string.split( '\n' );
+
+		for ( var i = 0; i < lines.length; i ++ ) {
+
+			lines[ i ] = ( i + 1 ) + ': ' + lines[ i ];
+
+		}
+
+		return lines.join( '\n' );
+
+	}
+
+	function WebGLShader( gl, type, string, debug ) {
+
+		var shader = gl.createShader( type );
+
+		gl.shaderSource( shader, string );
+		gl.compileShader( shader );
+
+		if ( debug === true ) {
+
+			if ( gl.getShaderParameter( shader, 35713 ) === false ) {
+
+				console.error( 'THREE.WebGLShader: Shader couldn\'t compile.' );
+
+			}
+
+			if ( gl.getShaderInfoLog( shader ) !== '' ) {
+
+				console.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === 35633 ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );
+
+			}
+
+		}
+
+		// --enable-privileged-webgl-extension
+		// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );
+
+		return shader;
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	var programIdCount = 0;
+
+	function getEncodingComponents( encoding ) {
+
+		switch ( encoding ) {
+
+			case LinearEncoding:
+				return [ 'Linear', '( value )' ];
+			case sRGBEncoding:
+				return [ 'sRGB', '( value )' ];
+			case RGBEEncoding:
+				return [ 'RGBE', '( value )' ];
+			case RGBM7Encoding:
+				return [ 'RGBM', '( value, 7.0 )' ];
+			case RGBM16Encoding:
+				return [ 'RGBM', '( value, 16.0 )' ];
+			case RGBDEncoding:
+				return [ 'RGBD', '( value, 256.0 )' ];
+			case GammaEncoding:
+				return [ 'Gamma', '( value, float( GAMMA_FACTOR ) )' ];
+			default:
+				throw new Error( 'unsupported encoding: ' + encoding );
+
+		}
+
+	}
+
+	function getTexelDecodingFunction( functionName, encoding ) {
+
+		var components = getEncodingComponents( encoding );
+		return 'vec4 ' + functionName + '( vec4 value ) { return ' + components[ 0 ] + 'ToLinear' + components[ 1 ] + '; }';
+
+	}
+
+	function getTexelEncodingFunction( functionName, encoding ) {
+
+		var components = getEncodingComponents( encoding );
+		return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }';
+
+	}
+
+	function getToneMappingFunction( functionName, toneMapping ) {
+
+		var toneMappingName;
+
+		switch ( toneMapping ) {
+
+			case LinearToneMapping:
+				toneMappingName = 'Linear';
+				break;
+
+			case ReinhardToneMapping:
+				toneMappingName = 'Reinhard';
+				break;
+
+			case Uncharted2ToneMapping:
+				toneMappingName = 'Uncharted2';
+				break;
+
+			case CineonToneMapping:
+				toneMappingName = 'OptimizedCineon';
+				break;
+
+			case ACESFilmicToneMapping:
+				toneMappingName = 'ACESFilmic';
+				break;
+
+			default:
+				throw new Error( 'unsupported toneMapping: ' + toneMapping );
+
+		}
+
+		return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';
+
+	}
+
+	function generateExtensions( extensions, parameters, rendererExtensions ) {
+
+		extensions = extensions || {};
+
+		var chunks = [
+			( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || ( parameters.normalMap && ! parameters.objectSpaceNormalMap ) || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',
+			( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',
+			( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',
+			( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : ''
+		];
+
+		return chunks.filter( filterEmptyLine ).join( '\n' );
+
+	}
+
+	function generateDefines( defines ) {
+
+		var chunks = [];
+
+		for ( var name in defines ) {
+
+			var value = defines[ name ];
+
+			if ( value === false ) continue;
+
+			chunks.push( '#define ' + name + ' ' + value );
+
+		}
+
+		return chunks.join( '\n' );
+
+	}
+
+	function fetchAttributeLocations( gl, program ) {
+
+		var attributes = {};
+
+		var n = gl.getProgramParameter( program, 35721 );
+
+		for ( var i = 0; i < n; i ++ ) {
+
+			var info = gl.getActiveAttrib( program, i );
+			var name = info.name;
+
+			// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );
+
+			attributes[ name ] = gl.getAttribLocation( program, name );
+
+		}
+
+		return attributes;
+
+	}
+
+	function filterEmptyLine( string ) {
+
+		return string !== '';
+
+	}
+
+	function replaceLightNums( string, parameters ) {
+
+		return string
+			.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )
+			.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )
+			.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )
+			.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )
+			.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights );
+
+	}
+
+	function replaceClippingPlaneNums( string, parameters ) {
+
+		return string
+			.replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes )
+			.replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) );
+
+	}
+
+	function parseIncludes( string ) {
+
+		var pattern = /^[ \t]*#include +<([\w\d./]+)>/gm;
+
+		function replace( match, include ) {
+
+			var replace = ShaderChunk[ include ];
+
+			if ( replace === undefined ) {
+
+				throw new Error( 'Can not resolve #include <' + include + '>' );
+
+			}
+
+			return parseIncludes( replace );
+
+		}
+
+		return string.replace( pattern, replace );
+
+	}
+
+	function unrollLoops( string ) {
+
+		var pattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;
+
+		function replace( match, start, end, snippet ) {
+
+			var unroll = '';
+
+			for ( var i = parseInt( start ); i < parseInt( end ); i ++ ) {
+
+				unroll += snippet.replace( /\[ i \]/g, '[ ' + i + ' ]' );
+
+			}
+
+			return unroll;
+
+		}
+
+		return string.replace( pattern, replace );
+
+	}
+
+	function WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities, textures ) {
+
+		var gl = renderer.context;
+
+		var defines = material.defines;
+
+		var vertexShader = shader.vertexShader;
+		var fragmentShader = shader.fragmentShader;
+
+		var shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';
+
+		if ( parameters.shadowMapType === PCFShadowMap ) {
+
+			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';
+
+		} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {
+
+			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';
+
+		}
+
+		var envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
+		var envMapModeDefine = 'ENVMAP_MODE_REFLECTION';
+		var envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
+
+		if ( parameters.envMap ) {
+
+			switch ( material.envMap.mapping ) {
+
+				case CubeReflectionMapping:
+				case CubeRefractionMapping:
+					envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
+					break;
+
+				case CubeUVReflectionMapping:
+				case CubeUVRefractionMapping:
+					envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
+					break;
+
+				case EquirectangularReflectionMapping:
+				case EquirectangularRefractionMapping:
+					envMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';
+					break;
+
+				case SphericalReflectionMapping:
+					envMapTypeDefine = 'ENVMAP_TYPE_SPHERE';
+					break;
+
+			}
+
+			switch ( material.envMap.mapping ) {
+
+				case CubeRefractionMapping:
+				case EquirectangularRefractionMapping:
+					envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
+					break;
+
+			}
+
+			switch ( material.combine ) {
+
+				case MultiplyOperation:
+					envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
+					break;
+
+				case MixOperation:
+					envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
+					break;
+
+				case AddOperation:
+					envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
+					break;
+
+			}
+
+		}
+
+		var gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;
+
+		// console.log( 'building new program ' );
+
+		//
+
+		var customExtensions = capabilities.isWebGL2 ? '' : generateExtensions( material.extensions, parameters, extensions );
+
+		var customDefines = generateDefines( defines );
+
+		//
+
+		var program = gl.createProgram();
+
+		var prefixVertex, prefixFragment;
+
+		if ( material.isRawShaderMaterial ) {
+
+			prefixVertex = [
+
+				customDefines
+
+			].filter( filterEmptyLine ).join( '\n' );
+
+			if ( prefixVertex.length > 0 ) {
+
+				prefixVertex += '\n';
+
+			}
+
+			prefixFragment = [
+
+				customExtensions,
+				customDefines
+
+			].filter( filterEmptyLine ).join( '\n' );
+
+			if ( prefixFragment.length > 0 ) {
+
+				prefixFragment += '\n';
+
+			}
+
+		} else {
+
+			prefixVertex = [
+
+				'precision ' + parameters.precision + ' float;',
+				'precision ' + parameters.precision + ' int;',
+
+				'#define SHADER_NAME ' + shader.name,
+
+				customDefines,
+
+				parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',
+
+				'#define GAMMA_FACTOR ' + gammaFactorDefine,
+
+				'#define MAX_BONES ' + parameters.maxBones,
+				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
+				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',
+
+				parameters.map ? '#define USE_MAP' : '',
+				parameters.envMap ? '#define USE_ENVMAP' : '',
+				parameters.envMap ? '#define ' + envMapModeDefine : '',
+				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
+				parameters.aoMap ? '#define USE_AOMAP' : '',
+				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
+				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
+				parameters.normalMap ? '#define USE_NORMALMAP' : '',
+				( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
+				parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',
+				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
+				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
+				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
+				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
+
+				parameters.vertexTangents ? '#define USE_TANGENT' : '',
+				parameters.vertexColors ? '#define USE_COLOR' : '',
+
+				parameters.flatShading ? '#define FLAT_SHADED' : '',
+
+				parameters.skinning ? '#define USE_SKINNING' : '',
+				parameters.useVertexTexture ? '#define BONE_TEXTURE' : '',
+
+				parameters.morphTargets ? '#define USE_MORPHTARGETS' : '',
+				parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',
+				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
+				parameters.flipSided ? '#define FLIP_SIDED' : '',
+
+				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
+				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
+
+				parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',
+
+				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
+				parameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',
+
+				'uniform mat4 modelMatrix;',
+				'uniform mat4 modelViewMatrix;',
+				'uniform mat4 projectionMatrix;',
+				'uniform mat4 viewMatrix;',
+				'uniform mat3 normalMatrix;',
+				'uniform vec3 cameraPosition;',
+
+				'attribute vec3 position;',
+				'attribute vec3 normal;',
+				'attribute vec2 uv;',
+
+				'#ifdef USE_TANGENT',
+
+				'	attribute vec4 tangent;',
+
+				'#endif',
+
+				'#ifdef USE_COLOR',
+
+				'	attribute vec3 color;',
+
+				'#endif',
+
+				'#ifdef USE_MORPHTARGETS',
+
+				'	attribute vec3 morphTarget0;',
+				'	attribute vec3 morphTarget1;',
+				'	attribute vec3 morphTarget2;',
+				'	attribute vec3 morphTarget3;',
+
+				'	#ifdef USE_MORPHNORMALS',
+
+				'		attribute vec3 morphNormal0;',
+				'		attribute vec3 morphNormal1;',
+				'		attribute vec3 morphNormal2;',
+				'		attribute vec3 morphNormal3;',
+
+				'	#else',
+
+				'		attribute vec3 morphTarget4;',
+				'		attribute vec3 morphTarget5;',
+				'		attribute vec3 morphTarget6;',
+				'		attribute vec3 morphTarget7;',
+
+				'	#endif',
+
+				'#endif',
+
+				'#ifdef USE_SKINNING',
+
+				'	attribute vec4 skinIndex;',
+				'	attribute vec4 skinWeight;',
+
+				'#endif',
+
+				'\n'
+
+			].filter( filterEmptyLine ).join( '\n' );
+
+			prefixFragment = [
+
+				customExtensions,
+
+				'precision ' + parameters.precision + ' float;',
+				'precision ' + parameters.precision + ' int;',
+
+				'#define SHADER_NAME ' + shader.name,
+
+				customDefines,
+
+				parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest + ( parameters.alphaTest % 1 ? '' : '.0' ) : '', // add '.0' if integer
+
+				'#define GAMMA_FACTOR ' + gammaFactorDefine,
+
+				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
+				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',
+
+				parameters.map ? '#define USE_MAP' : '',
+				parameters.matcap ? '#define USE_MATCAP' : '',
+				parameters.envMap ? '#define USE_ENVMAP' : '',
+				parameters.envMap ? '#define ' + envMapTypeDefine : '',
+				parameters.envMap ? '#define ' + envMapModeDefine : '',
+				parameters.envMap ? '#define ' + envMapBlendingDefine : '',
+				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
+				parameters.aoMap ? '#define USE_AOMAP' : '',
+				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
+				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
+				parameters.normalMap ? '#define USE_NORMALMAP' : '',
+				( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
+				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
+				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
+				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
+				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
+
+				parameters.vertexTangents ? '#define USE_TANGENT' : '',
+				parameters.vertexColors ? '#define USE_COLOR' : '',
+
+				parameters.gradientMap ? '#define USE_GRADIENTMAP' : '',
+
+				parameters.flatShading ? '#define FLAT_SHADED' : '',
+
+				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
+				parameters.flipSided ? '#define FLIP_SIDED' : '',
+
+				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
+				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
+
+				parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '',
+
+				parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '',
+
+				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
+				parameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',
+
+				parameters.envMap && ( capabilities.isWebGL2 || extensions.get( 'EXT_shader_texture_lod' ) ) ? '#define TEXTURE_LOD_EXT' : '',
+
+				'uniform mat4 viewMatrix;',
+				'uniform vec3 cameraPosition;',
+
+				( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '',
+				( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below
+				( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '',
+
+				parameters.dithering ? '#define DITHERING' : '',
+
+				( parameters.outputEncoding || parameters.mapEncoding || parameters.matcapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ?
+					ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below
+				parameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '',
+				parameters.matcapEncoding ? getTexelDecodingFunction( 'matcapTexelToLinear', parameters.matcapEncoding ) : '',
+				parameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '',
+				parameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '',
+				parameters.outputEncoding ? getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ) : '',
+
+				parameters.depthPacking ? '#define DEPTH_PACKING ' + material.depthPacking : '',
+
+				'\n'
+
+			].filter( filterEmptyLine ).join( '\n' );
+
+		}
+
+		vertexShader = parseIncludes( vertexShader );
+		vertexShader = replaceLightNums( vertexShader, parameters );
+		vertexShader = replaceClippingPlaneNums( vertexShader, parameters );
+
+		fragmentShader = parseIncludes( fragmentShader );
+		fragmentShader = replaceLightNums( fragmentShader, parameters );
+		fragmentShader = replaceClippingPlaneNums( fragmentShader, parameters );
+
+		vertexShader = unrollLoops( vertexShader );
+		fragmentShader = unrollLoops( fragmentShader );
+
+		if ( capabilities.isWebGL2 && ! material.isRawShaderMaterial ) {
+
+			var isGLSL3ShaderMaterial = false;
+
+			var versionRegex = /^\s*#version\s+300\s+es\s*\n/;
+
+			if ( material.isShaderMaterial &&
+				vertexShader.match( versionRegex ) !== null &&
+				fragmentShader.match( versionRegex ) !== null ) {
+
+				isGLSL3ShaderMaterial = true;
+
+				vertexShader = vertexShader.replace( versionRegex, '' );
+				fragmentShader = fragmentShader.replace( versionRegex, '' );
+
+			}
+
+			// GLSL 3.0 conversion
+			prefixVertex = [
+				'#version 300 es\n',
+				'#define attribute in',
+				'#define varying out',
+				'#define texture2D texture'
+			].join( '\n' ) + '\n' + prefixVertex;
+
+			prefixFragment = [
+				'#version 300 es\n',
+				'#define varying in',
+				isGLSL3ShaderMaterial ? '' : 'out highp vec4 pc_fragColor;',
+				isGLSL3ShaderMaterial ? '' : '#define gl_FragColor pc_fragColor',
+				'#define gl_FragDepthEXT gl_FragDepth',
+				'#define texture2D texture',
+				'#define textureCube texture',
+				'#define texture2DProj textureProj',
+				'#define texture2DLodEXT textureLod',
+				'#define texture2DProjLodEXT textureProjLod',
+				'#define textureCubeLodEXT textureLod',
+				'#define texture2DGradEXT textureGrad',
+				'#define texture2DProjGradEXT textureProjGrad',
+				'#define textureCubeGradEXT textureGrad'
+			].join( '\n' ) + '\n' + prefixFragment;
+
+		}
+
+		var vertexGlsl = prefixVertex + vertexShader;
+		var fragmentGlsl = prefixFragment + fragmentShader;
+
+		// console.log( '*VERTEX*', vertexGlsl );
+		// console.log( '*FRAGMENT*', fragmentGlsl );
+
+		var glVertexShader = WebGLShader( gl, 35633, vertexGlsl, renderer.debug.checkShaderErrors );
+		var glFragmentShader = WebGLShader( gl, 35632, fragmentGlsl, renderer.debug.checkShaderErrors );
+
+		gl.attachShader( program, glVertexShader );
+		gl.attachShader( program, glFragmentShader );
+
+		// Force a particular attribute to index 0.
+
+		if ( material.index0AttributeName !== undefined ) {
+
+			gl.bindAttribLocation( program, 0, material.index0AttributeName );
+
+		} else if ( parameters.morphTargets === true ) {
+
+			// programs with morphTargets displace position out of attribute 0
+			gl.bindAttribLocation( program, 0, 'position' );
+
+		}
+
+		gl.linkProgram( program );
+
+		// check for link errors
+		if ( renderer.debug.checkShaderErrors ) {
+
+			var programLog = gl.getProgramInfoLog( program ).trim();
+			var vertexLog = gl.getShaderInfoLog( glVertexShader ).trim();
+			var fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim();
+
+			var runnable = true;
+			var haveDiagnostics = true;
+
+			// console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) );
+			// console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) );
+
+			if ( gl.getProgramParameter( program, 35714 ) === false ) {
+
+				runnable = false;
+
+				console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), '35715', gl.getProgramParameter( program, 35715 ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );
+
+			} else if ( programLog !== '' ) {
+
+				console.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );
+
+			} else if ( vertexLog === '' || fragmentLog === '' ) {
+
+				haveDiagnostics = false;
+
+			}
+
+			if ( haveDiagnostics ) {
+
+				this.diagnostics = {
+
+					runnable: runnable,
+					material: material,
+
+					programLog: programLog,
+
+					vertexShader: {
+
+						log: vertexLog,
+						prefix: prefixVertex
+
+					},
+
+					fragmentShader: {
+
+						log: fragmentLog,
+						prefix: prefixFragment
+
+					}
+
+				};
+
+			}
+
+		}
+
+		// clean up
+
+		gl.deleteShader( glVertexShader );
+		gl.deleteShader( glFragmentShader );
+
+		// set up caching for uniform locations
+
+		var cachedUniforms;
+
+		this.getUniforms = function () {
+
+			if ( cachedUniforms === undefined ) {
+
+				cachedUniforms = new WebGLUniforms( gl, program, textures );
+
+			}
+
+			return cachedUniforms;
+
+		};
+
+		// set up caching for attribute locations
+
+		var cachedAttributes;
+
+		this.getAttributes = function () {
+
+			if ( cachedAttributes === undefined ) {
+
+				cachedAttributes = fetchAttributeLocations( gl, program );
+
+			}
+
+			return cachedAttributes;
+
+		};
+
+		// free resource
+
+		this.destroy = function () {
+
+			gl.deleteProgram( program );
+			this.program = undefined;
+
+		};
+
+		// DEPRECATED
+
+		Object.defineProperties( this, {
+
+			uniforms: {
+				get: function () {
+
+					console.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );
+					return this.getUniforms();
+
+				}
+			},
+
+			attributes: {
+				get: function () {
+
+					console.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );
+					return this.getAttributes();
+
+				}
+			}
+
+		} );
+
+
+		//
+
+		this.name = shader.name;
+		this.id = programIdCount ++;
+		this.code = code;
+		this.usedTimes = 1;
+		this.program = program;
+		this.vertexShader = glVertexShader;
+		this.fragmentShader = glFragmentShader;
+
+		return this;
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLPrograms( renderer, extensions, capabilities, textures ) {
+
+		var programs = [];
+
+		var shaderIDs = {
+			MeshDepthMaterial: 'depth',
+			MeshDistanceMaterial: 'distanceRGBA',
+			MeshNormalMaterial: 'normal',
+			MeshBasicMaterial: 'basic',
+			MeshLambertMaterial: 'lambert',
+			MeshPhongMaterial: 'phong',
+			MeshToonMaterial: 'phong',
+			MeshStandardMaterial: 'physical',
+			MeshPhysicalMaterial: 'physical',
+			MeshMatcapMaterial: 'matcap',
+			LineBasicMaterial: 'basic',
+			LineDashedMaterial: 'dashed',
+			PointsMaterial: 'points',
+			ShadowMaterial: 'shadow',
+			SpriteMaterial: 'sprite'
+		};
+
+		var parameterNames = [
+			"precision", "supportsVertexTextures", "map", "mapEncoding", "matcap", "matcapEncoding", "envMap", "envMapMode", "envMapEncoding",
+			"lightMap", "aoMap", "emissiveMap", "emissiveMapEncoding", "bumpMap", "normalMap", "objectSpaceNormalMap", "displacementMap", "specularMap",
+			"roughnessMap", "metalnessMap", "gradientMap",
+			"alphaMap", "combine", "vertexColors", "vertexTangents", "fog", "useFog", "fogExp",
+			"flatShading", "sizeAttenuation", "logarithmicDepthBuffer", "skinning",
+			"maxBones", "useVertexTexture", "morphTargets", "morphNormals",
+			"maxMorphTargets", "maxMorphNormals", "premultipliedAlpha",
+			"numDirLights", "numPointLights", "numSpotLights", "numHemiLights", "numRectAreaLights",
+			"shadowMapEnabled", "shadowMapType", "toneMapping", 'physicallyCorrectLights',
+			"alphaTest", "doubleSided", "flipSided", "numClippingPlanes", "numClipIntersection", "depthPacking", "dithering"
+		];
+
+
+		function allocateBones( object ) {
+
+			var skeleton = object.skeleton;
+			var bones = skeleton.bones;
+
+			if ( capabilities.floatVertexTextures ) {
+
+				return 1024;
+
+			} else {
+
+				// default for when object is not specified
+				// ( for example when prebuilding shader to be used with multiple objects )
+				//
+				//  - leave some extra space for other uniforms
+				//  - limit here is ANGLE's 254 max uniform vectors
+				//    (up to 54 should be safe)
+
+				var nVertexUniforms = capabilities.maxVertexUniforms;
+				var nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );
+
+				var maxBones = Math.min( nVertexMatrices, bones.length );
+
+				if ( maxBones < bones.length ) {
+
+					console.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' );
+					return 0;
+
+				}
+
+				return maxBones;
+
+			}
+
+		}
+
+		function getTextureEncodingFromMap( map, gammaOverrideLinear ) {
+
+			var encoding;
+
+			if ( ! map ) {
+
+				encoding = LinearEncoding;
+
+			} else if ( map.isTexture ) {
+
+				encoding = map.encoding;
+
+			} else if ( map.isWebGLRenderTarget ) {
+
+				console.warn( "THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead." );
+				encoding = map.texture.encoding;
+
+			}
+
+			// add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point.
+			if ( encoding === LinearEncoding && gammaOverrideLinear ) {
+
+				encoding = GammaEncoding;
+
+			}
+
+			return encoding;
+
+		}
+
+		this.getParameters = function ( material, lights, shadows, fog, nClipPlanes, nClipIntersection, object ) {
+
+			var shaderID = shaderIDs[ material.type ];
+
+			// heuristics to create shader parameters according to lights in the scene
+			// (not to blow over maxLights budget)
+
+			var maxBones = object.isSkinnedMesh ? allocateBones( object ) : 0;
+			var precision = capabilities.precision;
+
+			if ( material.precision !== null ) {
+
+				precision = capabilities.getMaxPrecision( material.precision );
+
+				if ( precision !== material.precision ) {
+
+					console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );
+
+				}
+
+			}
+
+			var currentRenderTarget = renderer.getRenderTarget();
+
+			var parameters = {
+
+				shaderID: shaderID,
+
+				precision: precision,
+				supportsVertexTextures: capabilities.vertexTextures,
+				outputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ),
+				map: !! material.map,
+				mapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ),
+				matcap: !! material.matcap,
+				matcapEncoding: getTextureEncodingFromMap( material.matcap, renderer.gammaInput ),
+				envMap: !! material.envMap,
+				envMapMode: material.envMap && material.envMap.mapping,
+				envMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ),
+				envMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ),
+				lightMap: !! material.lightMap,
+				aoMap: !! material.aoMap,
+				emissiveMap: !! material.emissiveMap,
+				emissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ),
+				bumpMap: !! material.bumpMap,
+				normalMap: !! material.normalMap,
+				objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,
+				displacementMap: !! material.displacementMap,
+				roughnessMap: !! material.roughnessMap,
+				metalnessMap: !! material.metalnessMap,
+				specularMap: !! material.specularMap,
+				alphaMap: !! material.alphaMap,
+
+				gradientMap: !! material.gradientMap,
+
+				combine: material.combine,
+
+				vertexTangents: ( material.normalMap && material.vertexTangents ),
+				vertexColors: material.vertexColors,
+
+				fog: !! fog,
+				useFog: material.fog,
+				fogExp: ( fog && fog.isFogExp2 ),
+
+				flatShading: material.flatShading,
+
+				sizeAttenuation: material.sizeAttenuation,
+				logarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,
+
+				skinning: material.skinning && maxBones > 0,
+				maxBones: maxBones,
+				useVertexTexture: capabilities.floatVertexTextures,
+
+				morphTargets: material.morphTargets,
+				morphNormals: material.morphNormals,
+				maxMorphTargets: renderer.maxMorphTargets,
+				maxMorphNormals: renderer.maxMorphNormals,
+
+				numDirLights: lights.directional.length,
+				numPointLights: lights.point.length,
+				numSpotLights: lights.spot.length,
+				numRectAreaLights: lights.rectArea.length,
+				numHemiLights: lights.hemi.length,
+
+				numClippingPlanes: nClipPlanes,
+				numClipIntersection: nClipIntersection,
+
+				dithering: material.dithering,
+
+				shadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && shadows.length > 0,
+				shadowMapType: renderer.shadowMap.type,
+
+				toneMapping: renderer.toneMapping,
+				physicallyCorrectLights: renderer.physicallyCorrectLights,
+
+				premultipliedAlpha: material.premultipliedAlpha,
+
+				alphaTest: material.alphaTest,
+				doubleSided: material.side === DoubleSide,
+				flipSided: material.side === BackSide,
+
+				depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false
+
+			};
+
+			return parameters;
+
+		};
+
+		this.getProgramCode = function ( material, parameters ) {
+
+			var array = [];
+
+			if ( parameters.shaderID ) {
+
+				array.push( parameters.shaderID );
+
+			} else {
+
+				array.push( material.fragmentShader );
+				array.push( material.vertexShader );
+
+			}
+
+			if ( material.defines !== undefined ) {
+
+				for ( var name in material.defines ) {
+
+					array.push( name );
+					array.push( material.defines[ name ] );
+
+				}
+
+			}
+
+			for ( var i = 0; i < parameterNames.length; i ++ ) {
+
+				array.push( parameters[ parameterNames[ i ] ] );
+
+			}
+
+			array.push( material.onBeforeCompile.toString() );
+
+			array.push( renderer.gammaOutput );
+
+			array.push( renderer.gammaFactor );
+
+			return array.join();
+
+		};
+
+		this.acquireProgram = function ( material, shader, parameters, code ) {
+
+			var program;
+
+			// Check if code has been already compiled
+			for ( var p = 0, pl = programs.length; p < pl; p ++ ) {
+
+				var programInfo = programs[ p ];
+
+				if ( programInfo.code === code ) {
+
+					program = programInfo;
+					++ program.usedTimes;
+
+					break;
+
+				}
+
+			}
+
+			if ( program === undefined ) {
+
+				program = new WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities, textures );
+				programs.push( program );
+
+			}
+
+			return program;
+
+		};
+
+		this.releaseProgram = function ( program ) {
+
+			if ( -- program.usedTimes === 0 ) {
+
+				// Remove from unordered set
+				var i = programs.indexOf( program );
+				programs[ i ] = programs[ programs.length - 1 ];
+				programs.pop();
+
+				// Free WebGL resources
+				program.destroy();
+
+			}
+
+		};
+
+		// Exposed for resource monitoring & error feedback via renderer.info:
+		this.programs = programs;
+
+	}
+
+	/**
+	 * @author fordacious / fordacious.github.io
+	 */
+
+	function WebGLProperties() {
+
+		var properties = new WeakMap();
+
+		function get( object ) {
+
+			var map = properties.get( object );
+
+			if ( map === undefined ) {
+
+				map = {};
+				properties.set( object, map );
+
+			}
+
+			return map;
+
+		}
+
+		function remove( object ) {
+
+			properties.delete( object );
+
+		}
+
+		function update( object, key, value ) {
+
+			properties.get( object )[ key ] = value;
+
+		}
+
+		function dispose() {
+
+			properties = new WeakMap();
+
+		}
+
+		return {
+			get: get,
+			remove: remove,
+			update: update,
+			dispose: dispose
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function painterSortStable( a, b ) {
+
+		if ( a.groupOrder !== b.groupOrder ) {
+
+			return a.groupOrder - b.groupOrder;
+
+		} else if ( a.renderOrder !== b.renderOrder ) {
+
+			return a.renderOrder - b.renderOrder;
+
+		} else if ( a.program !== b.program ) {
+
+			return a.program.id - b.program.id;
+
+		} else if ( a.material.id !== b.material.id ) {
+
+			return a.material.id - b.material.id;
+
+		} else if ( a.z !== b.z ) {
+
+			return a.z - b.z;
+
+		} else {
+
+			return a.id - b.id;
+
+		}
+
+	}
+
+	function reversePainterSortStable( a, b ) {
+
+		if ( a.groupOrder !== b.groupOrder ) {
+
+			return a.groupOrder - b.groupOrder;
+
+		} else if ( a.renderOrder !== b.renderOrder ) {
+
+			return a.renderOrder - b.renderOrder;
+
+		} else if ( a.z !== b.z ) {
+
+			return b.z - a.z;
+
+		} else {
+
+			return a.id - b.id;
+
+		}
+
+	}
+
+
+	function WebGLRenderList() {
+
+		var renderItems = [];
+		var renderItemsIndex = 0;
+
+		var opaque = [];
+		var transparent = [];
+
+		var defaultProgram = { id: - 1 };
+
+		function init() {
+
+			renderItemsIndex = 0;
+
+			opaque.length = 0;
+			transparent.length = 0;
+
+		}
+
+		function getNextRenderItem( object, geometry, material, groupOrder, z, group ) {
+
+			var renderItem = renderItems[ renderItemsIndex ];
+
+			if ( renderItem === undefined ) {
+
+				renderItem = {
+					id: object.id,
+					object: object,
+					geometry: geometry,
+					material: material,
+					program: material.program || defaultProgram,
+					groupOrder: groupOrder,
+					renderOrder: object.renderOrder,
+					z: z,
+					group: group
+				};
+
+				renderItems[ renderItemsIndex ] = renderItem;
+
+			} else {
+
+				renderItem.id = object.id;
+				renderItem.object = object;
+				renderItem.geometry = geometry;
+				renderItem.material = material;
+				renderItem.program = material.program || defaultProgram;
+				renderItem.groupOrder = groupOrder;
+				renderItem.renderOrder = object.renderOrder;
+				renderItem.z = z;
+				renderItem.group = group;
+
+			}
+
+			renderItemsIndex ++;
+
+			return renderItem;
+
+		}
+
+		function push( object, geometry, material, groupOrder, z, group ) {
+
+			var renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group );
+
+			( material.transparent === true ? transparent : opaque ).push( renderItem );
+
+		}
+
+		function unshift( object, geometry, material, groupOrder, z, group ) {
+
+			var renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group );
+
+			( material.transparent === true ? transparent : opaque ).unshift( renderItem );
+
+		}
+
+		function sort() {
+
+			if ( opaque.length > 1 ) opaque.sort( painterSortStable );
+			if ( transparent.length > 1 ) transparent.sort( reversePainterSortStable );
+
+		}
+
+		return {
+			opaque: opaque,
+			transparent: transparent,
+
+			init: init,
+			push: push,
+			unshift: unshift,
+
+			sort: sort
+		};
+
+	}
+
+	function WebGLRenderLists() {
+
+		var lists = {};
+
+		function onSceneDispose( event ) {
+
+			var scene = event.target;
+
+			scene.removeEventListener( 'dispose', onSceneDispose );
+
+			delete lists[ scene.id ];
+
+		}
+
+		function get( scene, camera ) {
+
+			var cameras = lists[ scene.id ];
+			var list;
+			if ( cameras === undefined ) {
+
+				list = new WebGLRenderList();
+				lists[ scene.id ] = {};
+				lists[ scene.id ][ camera.id ] = list;
+
+				scene.addEventListener( 'dispose', onSceneDispose );
+
+			} else {
+
+				list = cameras[ camera.id ];
+				if ( list === undefined ) {
+
+					list = new WebGLRenderList();
+					cameras[ camera.id ] = list;
+
+				}
+
+			}
+
+			return list;
+
+		}
+
+		function dispose() {
+
+			lists = {};
+
+		}
+
+		return {
+			get: get,
+			dispose: dispose
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function UniformsCache() {
+
+		var lights = {};
+
+		return {
+
+			get: function ( light ) {
+
+				if ( lights[ light.id ] !== undefined ) {
+
+					return lights[ light.id ];
+
+				}
+
+				var uniforms;
+
+				switch ( light.type ) {
+
+					case 'DirectionalLight':
+						uniforms = {
+							direction: new Vector3(),
+							color: new Color(),
+
+							shadow: false,
+							shadowBias: 0,
+							shadowRadius: 1,
+							shadowMapSize: new Vector2()
+						};
+						break;
+
+					case 'SpotLight':
+						uniforms = {
+							position: new Vector3(),
+							direction: new Vector3(),
+							color: new Color(),
+							distance: 0,
+							coneCos: 0,
+							penumbraCos: 0,
+							decay: 0,
+
+							shadow: false,
+							shadowBias: 0,
+							shadowRadius: 1,
+							shadowMapSize: new Vector2()
+						};
+						break;
+
+					case 'PointLight':
+						uniforms = {
+							position: new Vector3(),
+							color: new Color(),
+							distance: 0,
+							decay: 0,
+
+							shadow: false,
+							shadowBias: 0,
+							shadowRadius: 1,
+							shadowMapSize: new Vector2(),
+							shadowCameraNear: 1,
+							shadowCameraFar: 1000
+						};
+						break;
+
+					case 'HemisphereLight':
+						uniforms = {
+							direction: new Vector3(),
+							skyColor: new Color(),
+							groundColor: new Color()
+						};
+						break;
+
+					case 'RectAreaLight':
+						uniforms = {
+							color: new Color(),
+							position: new Vector3(),
+							halfWidth: new Vector3(),
+							halfHeight: new Vector3()
+							// TODO (abelnation): set RectAreaLight shadow uniforms
+						};
+						break;
+
+				}
+
+				lights[ light.id ] = uniforms;
+
+				return uniforms;
+
+			}
+
+		};
+
+	}
+
+	var count = 0;
+
+	function WebGLLights() {
+
+		var cache = new UniformsCache();
+
+		var state = {
+
+			id: count ++,
+
+			hash: {
+				stateID: - 1,
+				directionalLength: - 1,
+				pointLength: - 1,
+				spotLength: - 1,
+				rectAreaLength: - 1,
+				hemiLength: - 1,
+				shadowsLength: - 1
+			},
+
+			ambient: [ 0, 0, 0 ],
+			probe: [],
+			directional: [],
+			directionalShadowMap: [],
+			directionalShadowMatrix: [],
+			spot: [],
+			spotShadowMap: [],
+			spotShadowMatrix: [],
+			rectArea: [],
+			point: [],
+			pointShadowMap: [],
+			pointShadowMatrix: [],
+			hemi: []
+
+		};
+
+		for ( var i = 0; i < 9; i ++ ) state.probe.push( new Vector3() );
+
+		var vector3 = new Vector3();
+		var matrix4 = new Matrix4();
+		var matrix42 = new Matrix4();
+
+		function setup( lights, shadows, camera ) {
+
+			var r = 0, g = 0, b = 0;
+
+			for ( var i = 0; i < 9; i ++ ) state.probe[ i ].set( 0, 0, 0 );
+
+			var directionalLength = 0;
+			var pointLength = 0;
+			var spotLength = 0;
+			var rectAreaLength = 0;
+			var hemiLength = 0;
+
+			var viewMatrix = camera.matrixWorldInverse;
+
+			for ( var i = 0, l = lights.length; i < l; i ++ ) {
+
+				var light = lights[ i ];
+
+				var color = light.color;
+				var intensity = light.intensity;
+				var distance = light.distance;
+
+				var shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;
+
+				if ( light.isAmbientLight ) {
+
+					r += color.r * intensity;
+					g += color.g * intensity;
+					b += color.b * intensity;
+
+				} else if ( light.isLightProbe ) {
+
+					for ( var j = 0; j < 9; j ++ ) {
+
+						state.probe[ j ].addScaledVector( light.sh.coefficients[ j ], intensity );
+
+					}
+
+				} else if ( light.isDirectionalLight ) {
+
+					var uniforms = cache.get( light );
+
+					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
+					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
+					vector3.setFromMatrixPosition( light.target.matrixWorld );
+					uniforms.direction.sub( vector3 );
+					uniforms.direction.transformDirection( viewMatrix );
+
+					uniforms.shadow = light.castShadow;
+
+					if ( light.castShadow ) {
+
+						var shadow = light.shadow;
+
+						uniforms.shadowBias = shadow.bias;
+						uniforms.shadowRadius = shadow.radius;
+						uniforms.shadowMapSize = shadow.mapSize;
+
+					}
+
+					state.directionalShadowMap[ directionalLength ] = shadowMap;
+					state.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;
+					state.directional[ directionalLength ] = uniforms;
+
+					directionalLength ++;
+
+				} else if ( light.isSpotLight ) {
+
+					var uniforms = cache.get( light );
+
+					uniforms.position.setFromMatrixPosition( light.matrixWorld );
+					uniforms.position.applyMatrix4( viewMatrix );
+
+					uniforms.color.copy( color ).multiplyScalar( intensity );
+					uniforms.distance = distance;
+
+					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
+					vector3.setFromMatrixPosition( light.target.matrixWorld );
+					uniforms.direction.sub( vector3 );
+					uniforms.direction.transformDirection( viewMatrix );
+
+					uniforms.coneCos = Math.cos( light.angle );
+					uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );
+					uniforms.decay = light.decay;
+
+					uniforms.shadow = light.castShadow;
+
+					if ( light.castShadow ) {
+
+						var shadow = light.shadow;
+
+						uniforms.shadowBias = shadow.bias;
+						uniforms.shadowRadius = shadow.radius;
+						uniforms.shadowMapSize = shadow.mapSize;
+
+					}
+
+					state.spotShadowMap[ spotLength ] = shadowMap;
+					state.spotShadowMatrix[ spotLength ] = light.shadow.matrix;
+					state.spot[ spotLength ] = uniforms;
+
+					spotLength ++;
+
+				} else if ( light.isRectAreaLight ) {
+
+					var uniforms = cache.get( light );
+
+					// (a) intensity is the total visible light emitted
+					//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );
+
+					// (b) intensity is the brightness of the light
+					uniforms.color.copy( color ).multiplyScalar( intensity );
+
+					uniforms.position.setFromMatrixPosition( light.matrixWorld );
+					uniforms.position.applyMatrix4( viewMatrix );
+
+					// extract local rotation of light to derive width/height half vectors
+					matrix42.identity();
+					matrix4.copy( light.matrixWorld );
+					matrix4.premultiply( viewMatrix );
+					matrix42.extractRotation( matrix4 );
+
+					uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );
+					uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );
+
+					uniforms.halfWidth.applyMatrix4( matrix42 );
+					uniforms.halfHeight.applyMatrix4( matrix42 );
+
+					// TODO (abelnation): RectAreaLight distance?
+					// uniforms.distance = distance;
+
+					state.rectArea[ rectAreaLength ] = uniforms;
+
+					rectAreaLength ++;
+
+				} else if ( light.isPointLight ) {
+
+					var uniforms = cache.get( light );
+
+					uniforms.position.setFromMatrixPosition( light.matrixWorld );
+					uniforms.position.applyMatrix4( viewMatrix );
+
+					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
+					uniforms.distance = light.distance;
+					uniforms.decay = light.decay;
+
+					uniforms.shadow = light.castShadow;
+
+					if ( light.castShadow ) {
+
+						var shadow = light.shadow;
+
+						uniforms.shadowBias = shadow.bias;
+						uniforms.shadowRadius = shadow.radius;
+						uniforms.shadowMapSize = shadow.mapSize;
+						uniforms.shadowCameraNear = shadow.camera.near;
+						uniforms.shadowCameraFar = shadow.camera.far;
+
+					}
+
+					state.pointShadowMap[ pointLength ] = shadowMap;
+					state.pointShadowMatrix[ pointLength ] = light.shadow.matrix;
+					state.point[ pointLength ] = uniforms;
+
+					pointLength ++;
+
+				} else if ( light.isHemisphereLight ) {
+
+					var uniforms = cache.get( light );
+
+					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
+					uniforms.direction.transformDirection( viewMatrix );
+					uniforms.direction.normalize();
+
+					uniforms.skyColor.copy( light.color ).multiplyScalar( intensity );
+					uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );
+
+					state.hemi[ hemiLength ] = uniforms;
+
+					hemiLength ++;
+
+				}
+
+			}
+
+			state.ambient[ 0 ] = r;
+			state.ambient[ 1 ] = g;
+			state.ambient[ 2 ] = b;
+
+			state.directional.length = directionalLength;
+			state.spot.length = spotLength;
+			state.rectArea.length = rectAreaLength;
+			state.point.length = pointLength;
+			state.hemi.length = hemiLength;
+
+			state.hash.stateID = state.id;
+			state.hash.directionalLength = directionalLength;
+			state.hash.pointLength = pointLength;
+			state.hash.spotLength = spotLength;
+			state.hash.rectAreaLength = rectAreaLength;
+			state.hash.hemiLength = hemiLength;
+			state.hash.shadowsLength = shadows.length;
+
+		}
+
+		return {
+			setup: setup,
+			state: state
+		};
+
+	}
+
+	/**
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	function WebGLRenderState() {
+
+		var lights = new WebGLLights();
+
+		var lightsArray = [];
+		var shadowsArray = [];
+
+		function init() {
+
+			lightsArray.length = 0;
+			shadowsArray.length = 0;
+
+		}
+
+		function pushLight( light ) {
+
+			lightsArray.push( light );
+
+		}
+
+		function pushShadow( shadowLight ) {
+
+			shadowsArray.push( shadowLight );
+
+		}
+
+		function setupLights( camera ) {
+
+			lights.setup( lightsArray, shadowsArray, camera );
+
+		}
+
+		var state = {
+			lightsArray: lightsArray,
+			shadowsArray: shadowsArray,
+
+			lights: lights
+		};
+
+		return {
+			init: init,
+			state: state,
+			setupLights: setupLights,
+
+			pushLight: pushLight,
+			pushShadow: pushShadow
+		};
+
+	}
+
+	function WebGLRenderStates() {
+
+		var renderStates = {};
+
+		function onSceneDispose( event ) {
+
+			var scene = event.target;
+
+			scene.removeEventListener( 'dispose', onSceneDispose );
+
+			delete renderStates[ scene.id ];
+
+		}
+
+		function get( scene, camera ) {
+
+			var renderState;
+
+			if ( renderStates[ scene.id ] === undefined ) {
+
+				renderState = new WebGLRenderState();
+				renderStates[ scene.id ] = {};
+				renderStates[ scene.id ][ camera.id ] = renderState;
+
+				scene.addEventListener( 'dispose', onSceneDispose );
+
+			} else {
+
+				if ( renderStates[ scene.id ][ camera.id ] === undefined ) {
+
+					renderState = new WebGLRenderState();
+					renderStates[ scene.id ][ camera.id ] = renderState;
+
+				} else {
+
+					renderState = renderStates[ scene.id ][ camera.id ];
+
+				}
+
+			}
+
+			return renderState;
+
+		}
+
+		function dispose() {
+
+			renderStates = {};
+
+		}
+
+		return {
+			get: get,
+			dispose: dispose
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author bhouston / https://clara.io
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 * parameters = {
+	 *
+	 *  opacity: <float>,
+	 *
+	 *  map: new THREE.Texture( <Image> ),
+	 *
+	 *  alphaMap: new THREE.Texture( <Image> ),
+	 *
+	 *  displacementMap: new THREE.Texture( <Image> ),
+	 *  displacementScale: <float>,
+	 *  displacementBias: <float>,
+	 *
+	 *  wireframe: <boolean>,
+	 *  wireframeLinewidth: <float>
+	 * }
+	 */
+
+	function MeshDepthMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'MeshDepthMaterial';
+
+		this.depthPacking = BasicDepthPacking;
+
+		this.skinning = false;
+		this.morphTargets = false;
+
+		this.map = null;
+
+		this.alphaMap = null;
+
+		this.displacementMap = null;
+		this.displacementScale = 1;
+		this.displacementBias = 0;
+
+		this.wireframe = false;
+		this.wireframeLinewidth = 1;
+
+		this.fog = false;
+		this.lights = false;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshDepthMaterial.prototype = Object.create( Material.prototype );
+	MeshDepthMaterial.prototype.constructor = MeshDepthMaterial;
+
+	MeshDepthMaterial.prototype.isMeshDepthMaterial = true;
+
+	MeshDepthMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.depthPacking = source.depthPacking;
+
+		this.skinning = source.skinning;
+		this.morphTargets = source.morphTargets;
+
+		this.map = source.map;
+
+		this.alphaMap = source.alphaMap;
+
+		this.displacementMap = source.displacementMap;
+		this.displacementScale = source.displacementScale;
+		this.displacementBias = source.displacementBias;
+
+		this.wireframe = source.wireframe;
+		this.wireframeLinewidth = source.wireframeLinewidth;
+
+		return this;
+
+	};
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 * parameters = {
+	 *
+	 *  referencePosition: <float>,
+	 *  nearDistance: <float>,
+	 *  farDistance: <float>,
+	 *
+	 *  skinning: <bool>,
+	 *  morphTargets: <bool>,
+	 *
+	 *  map: new THREE.Texture( <Image> ),
+	 *
+	 *  alphaMap: new THREE.Texture( <Image> ),
+	 *
+	 *  displacementMap: new THREE.Texture( <Image> ),
+	 *  displacementScale: <float>,
+	 *  displacementBias: <float>
+	 *
+	 * }
+	 */
+
+	function MeshDistanceMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'MeshDistanceMaterial';
+
+		this.referencePosition = new Vector3();
+		this.nearDistance = 1;
+		this.farDistance = 1000;
+
+		this.skinning = false;
+		this.morphTargets = false;
+
+		this.map = null;
+
+		this.alphaMap = null;
+
+		this.displacementMap = null;
+		this.displacementScale = 1;
+		this.displacementBias = 0;
+
+		this.fog = false;
+		this.lights = false;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshDistanceMaterial.prototype = Object.create( Material.prototype );
+	MeshDistanceMaterial.prototype.constructor = MeshDistanceMaterial;
+
+	MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;
+
+	MeshDistanceMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.referencePosition.copy( source.referencePosition );
+		this.nearDistance = source.nearDistance;
+		this.farDistance = source.farDistance;
+
+		this.skinning = source.skinning;
+		this.morphTargets = source.morphTargets;
+
+		this.map = source.map;
+
+		this.alphaMap = source.alphaMap;
+
+		this.displacementMap = source.displacementMap;
+		this.displacementScale = source.displacementScale;
+		this.displacementBias = source.displacementBias;
+
+		return this;
+
+	};
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLShadowMap( _renderer, _objects, maxTextureSize ) {
+
+		var _frustum = new Frustum(),
+			_projScreenMatrix = new Matrix4(),
+
+			_shadowMapSize = new Vector2(),
+			_maxShadowMapSize = new Vector2( maxTextureSize, maxTextureSize ),
+
+			_lookTarget = new Vector3(),
+			_lightPositionWorld = new Vector3(),
+
+			_MorphingFlag = 1,
+			_SkinningFlag = 2,
+
+			_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,
+
+			_depthMaterials = new Array( _NumberOfMaterialVariants ),
+			_distanceMaterials = new Array( _NumberOfMaterialVariants ),
+
+			_materialCache = {};
+
+		var shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide };
+
+		var cubeDirections = [
+			new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),
+			new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )
+		];
+
+		var cubeUps = [
+			new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),
+			new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),	new Vector3( 0, 0, - 1 )
+		];
+
+		var cube2DViewPorts = [
+			new Vector4(), new Vector4(), new Vector4(),
+			new Vector4(), new Vector4(), new Vector4()
+		];
+
+		// init
+
+		for ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {
+
+			var useMorphing = ( i & _MorphingFlag ) !== 0;
+			var useSkinning = ( i & _SkinningFlag ) !== 0;
+
+			var depthMaterial = new MeshDepthMaterial( {
+
+				depthPacking: RGBADepthPacking,
+
+				morphTargets: useMorphing,
+				skinning: useSkinning
+
+			} );
+
+			_depthMaterials[ i ] = depthMaterial;
+
+			//
+
+			var distanceMaterial = new MeshDistanceMaterial( {
+
+				morphTargets: useMorphing,
+				skinning: useSkinning
+
+			} );
+
+			_distanceMaterials[ i ] = distanceMaterial;
+
+		}
+
+		//
+
+		var scope = this;
+
+		this.enabled = false;
+
+		this.autoUpdate = true;
+		this.needsUpdate = false;
+
+		this.type = PCFShadowMap;
+
+		this.render = function ( lights, scene, camera ) {
+
+			if ( scope.enabled === false ) return;
+			if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;
+
+			if ( lights.length === 0 ) return;
+
+			var currentRenderTarget = _renderer.getRenderTarget();
+			var activeCubeFace = _renderer.getActiveCubeFace();
+			var activeMipMapLevel = _renderer.getActiveMipMapLevel();
+
+			var _state = _renderer.state;
+
+			// Set GL state for depth map.
+			_state.setBlending( NoBlending );
+			_state.buffers.color.setClear( 1, 1, 1, 1 );
+			_state.buffers.depth.setTest( true );
+			_state.setScissorTest( false );
+
+			// render depth map
+
+			var faceCount;
+
+			for ( var i = 0, il = lights.length; i < il; i ++ ) {
+
+				var light = lights[ i ];
+				var shadow = light.shadow;
+				var isPointLight = light && light.isPointLight;
+
+				if ( shadow === undefined ) {
+
+					console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );
+					continue;
+
+				}
+
+				var shadowCamera = shadow.camera;
+
+				_shadowMapSize.copy( shadow.mapSize );
+				_shadowMapSize.min( _maxShadowMapSize );
+
+				if ( isPointLight ) {
+
+					var vpWidth = _shadowMapSize.x;
+					var vpHeight = _shadowMapSize.y;
+
+					// These viewports map a cube-map onto a 2D texture with the
+					// following orientation:
+					//
+					//  xzXZ
+					//   y Y
+					//
+					// X - Positive x direction
+					// x - Negative x direction
+					// Y - Positive y direction
+					// y - Negative y direction
+					// Z - Positive z direction
+					// z - Negative z direction
+
+					// positive X
+					cube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );
+					// negative X
+					cube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );
+					// positive Z
+					cube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );
+					// negative Z
+					cube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );
+					// positive Y
+					cube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );
+					// negative Y
+					cube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );
+
+					_shadowMapSize.x *= 4.0;
+					_shadowMapSize.y *= 2.0;
+
+				}
+
+				if ( shadow.map === null ) {
+
+					var pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };
+
+					shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );
+					shadow.map.texture.name = light.name + ".shadowMap";
+
+					shadowCamera.updateProjectionMatrix();
+
+				}
+
+				if ( shadow.isSpotLightShadow ) {
+
+					shadow.update( light );
+
+				}
+
+				var shadowMap = shadow.map;
+				var shadowMatrix = shadow.matrix;
+
+				_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );
+				shadowCamera.position.copy( _lightPositionWorld );
+
+				if ( isPointLight ) {
+
+					faceCount = 6;
+
+					// for point lights we set the shadow matrix to be a translation-only matrix
+					// equal to inverse of the light's position
+
+					shadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );
+
+				} else {
+
+					faceCount = 1;
+
+					_lookTarget.setFromMatrixPosition( light.target.matrixWorld );
+					shadowCamera.lookAt( _lookTarget );
+					shadowCamera.updateMatrixWorld();
+
+					// compute shadow matrix
+
+					shadowMatrix.set(
+						0.5, 0.0, 0.0, 0.5,
+						0.0, 0.5, 0.0, 0.5,
+						0.0, 0.0, 0.5, 0.5,
+						0.0, 0.0, 0.0, 1.0
+					);
+
+					shadowMatrix.multiply( shadowCamera.projectionMatrix );
+					shadowMatrix.multiply( shadowCamera.matrixWorldInverse );
+
+				}
+
+				_renderer.setRenderTarget( shadowMap );
+				_renderer.clear();
+
+				// render shadow map for each cube face (if omni-directional) or
+				// run a single pass if not
+
+				for ( var face = 0; face < faceCount; face ++ ) {
+
+					if ( isPointLight ) {
+
+						_lookTarget.copy( shadowCamera.position );
+						_lookTarget.add( cubeDirections[ face ] );
+						shadowCamera.up.copy( cubeUps[ face ] );
+						shadowCamera.lookAt( _lookTarget );
+						shadowCamera.updateMatrixWorld();
+
+						var vpDimensions = cube2DViewPorts[ face ];
+						_state.viewport( vpDimensions );
+
+					}
+
+					// update camera matrices and frustum
+
+					_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );
+					_frustum.setFromMatrix( _projScreenMatrix );
+
+					// set object matrices & frustum culling
+
+					renderObject( scene, camera, shadowCamera, isPointLight );
+
+				}
+
+			}
+
+			scope.needsUpdate = false;
+
+			_renderer.setRenderTarget( currentRenderTarget, activeCubeFace, activeMipMapLevel );
+
+		};
+
+		function getDepthMaterial( object, material, isPointLight, lightPositionWorld, shadowCameraNear, shadowCameraFar ) {
+
+			var geometry = object.geometry;
+
+			var result = null;
+
+			var materialVariants = _depthMaterials;
+			var customMaterial = object.customDepthMaterial;
+
+			if ( isPointLight ) {
+
+				materialVariants = _distanceMaterials;
+				customMaterial = object.customDistanceMaterial;
+
+			}
+
+			if ( ! customMaterial ) {
+
+				var useMorphing = false;
+
+				if ( material.morphTargets ) {
+
+					if ( geometry && geometry.isBufferGeometry ) {
+
+						useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;
+
+					} else if ( geometry && geometry.isGeometry ) {
+
+						useMorphing = geometry.morphTargets && geometry.morphTargets.length > 0;
+
+					}
+
+				}
+
+				if ( object.isSkinnedMesh && material.skinning === false ) {
+
+					console.warn( 'THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object );
+
+				}
+
+				var useSkinning = object.isSkinnedMesh && material.skinning;
+
+				var variantIndex = 0;
+
+				if ( useMorphing ) variantIndex |= _MorphingFlag;
+				if ( useSkinning ) variantIndex |= _SkinningFlag;
+
+				result = materialVariants[ variantIndex ];
+
+			} else {
+
+				result = customMaterial;
+
+			}
+
+			if ( _renderer.localClippingEnabled &&
+					material.clipShadows === true &&
+					material.clippingPlanes.length !== 0 ) {
+
+				// in this case we need a unique material instance reflecting the
+				// appropriate state
+
+				var keyA = result.uuid, keyB = material.uuid;
+
+				var materialsForVariant = _materialCache[ keyA ];
+
+				if ( materialsForVariant === undefined ) {
+
+					materialsForVariant = {};
+					_materialCache[ keyA ] = materialsForVariant;
+
+				}
+
+				var cachedMaterial = materialsForVariant[ keyB ];
+
+				if ( cachedMaterial === undefined ) {
+
+					cachedMaterial = result.clone();
+					materialsForVariant[ keyB ] = cachedMaterial;
+
+				}
+
+				result = cachedMaterial;
+
+			}
+
+			result.visible = material.visible;
+			result.wireframe = material.wireframe;
+
+			result.side = ( material.shadowSide != null ) ? material.shadowSide : shadowSide[ material.side ];
+
+			result.clipShadows = material.clipShadows;
+			result.clippingPlanes = material.clippingPlanes;
+			result.clipIntersection = material.clipIntersection;
+
+			result.wireframeLinewidth = material.wireframeLinewidth;
+			result.linewidth = material.linewidth;
+
+			if ( isPointLight && result.isMeshDistanceMaterial ) {
+
+				result.referencePosition.copy( lightPositionWorld );
+				result.nearDistance = shadowCameraNear;
+				result.farDistance = shadowCameraFar;
+
+			}
+
+			return result;
+
+		}
+
+		function renderObject( object, camera, shadowCamera, isPointLight ) {
+
+			if ( object.visible === false ) return;
+
+			var visible = object.layers.test( camera.layers );
+
+			if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {
+
+				if ( object.castShadow && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {
+
+					object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );
+
+					var geometry = _objects.update( object );
+					var material = object.material;
+
+					if ( Array.isArray( material ) ) {
+
+						var groups = geometry.groups;
+
+						for ( var k = 0, kl = groups.length; k < kl; k ++ ) {
+
+							var group = groups[ k ];
+							var groupMaterial = material[ group.materialIndex ];
+
+							if ( groupMaterial && groupMaterial.visible ) {
+
+								var depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
+								_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );
+
+							}
+
+						}
+
+					} else if ( material.visible ) {
+
+						var depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
+						_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );
+
+					}
+
+				}
+
+			}
+
+			var children = object.children;
+
+			for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+				renderObject( children[ i ], camera, shadowCamera, isPointLight );
+
+			}
+
+		}
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLState( gl, extensions, utils, capabilities ) {
+
+		function ColorBuffer() {
+
+			var locked = false;
+
+			var color = new Vector4();
+			var currentColorMask = null;
+			var currentColorClear = new Vector4( 0, 0, 0, 0 );
+
+			return {
+
+				setMask: function ( colorMask ) {
+
+					if ( currentColorMask !== colorMask && ! locked ) {
+
+						gl.colorMask( colorMask, colorMask, colorMask, colorMask );
+						currentColorMask = colorMask;
+
+					}
+
+				},
+
+				setLocked: function ( lock ) {
+
+					locked = lock;
+
+				},
+
+				setClear: function ( r, g, b, a, premultipliedAlpha ) {
+
+					if ( premultipliedAlpha === true ) {
+
+						r *= a; g *= a; b *= a;
+
+					}
+
+					color.set( r, g, b, a );
+
+					if ( currentColorClear.equals( color ) === false ) {
+
+						gl.clearColor( r, g, b, a );
+						currentColorClear.copy( color );
+
+					}
+
+				},
+
+				reset: function () {
+
+					locked = false;
+
+					currentColorMask = null;
+					currentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state
+
+				}
+
+			};
+
+		}
+
+		function DepthBuffer() {
+
+			var locked = false;
+
+			var currentDepthMask = null;
+			var currentDepthFunc = null;
+			var currentDepthClear = null;
+
+			return {
+
+				setTest: function ( depthTest ) {
+
+					if ( depthTest ) {
+
+						enable( 2929 );
+
+					} else {
+
+						disable( 2929 );
+
+					}
+
+				},
+
+				setMask: function ( depthMask ) {
+
+					if ( currentDepthMask !== depthMask && ! locked ) {
+
+						gl.depthMask( depthMask );
+						currentDepthMask = depthMask;
+
+					}
+
+				},
+
+				setFunc: function ( depthFunc ) {
+
+					if ( currentDepthFunc !== depthFunc ) {
+
+						if ( depthFunc ) {
+
+							switch ( depthFunc ) {
+
+								case NeverDepth:
+
+									gl.depthFunc( 512 );
+									break;
+
+								case AlwaysDepth:
+
+									gl.depthFunc( 519 );
+									break;
+
+								case LessDepth:
+
+									gl.depthFunc( 513 );
+									break;
+
+								case LessEqualDepth:
+
+									gl.depthFunc( 515 );
+									break;
+
+								case EqualDepth:
+
+									gl.depthFunc( 514 );
+									break;
+
+								case GreaterEqualDepth:
+
+									gl.depthFunc( 518 );
+									break;
+
+								case GreaterDepth:
+
+									gl.depthFunc( 516 );
+									break;
+
+								case NotEqualDepth:
+
+									gl.depthFunc( 517 );
+									break;
+
+								default:
+
+									gl.depthFunc( 515 );
+
+							}
+
+						} else {
+
+							gl.depthFunc( 515 );
+
+						}
+
+						currentDepthFunc = depthFunc;
+
+					}
+
+				},
+
+				setLocked: function ( lock ) {
+
+					locked = lock;
+
+				},
+
+				setClear: function ( depth ) {
+
+					if ( currentDepthClear !== depth ) {
+
+						gl.clearDepth( depth );
+						currentDepthClear = depth;
+
+					}
+
+				},
+
+				reset: function () {
+
+					locked = false;
+
+					currentDepthMask = null;
+					currentDepthFunc = null;
+					currentDepthClear = null;
+
+				}
+
+			};
+
+		}
+
+		function StencilBuffer() {
+
+			var locked = false;
+
+			var currentStencilMask = null;
+			var currentStencilFunc = null;
+			var currentStencilRef = null;
+			var currentStencilFuncMask = null;
+			var currentStencilFail = null;
+			var currentStencilZFail = null;
+			var currentStencilZPass = null;
+			var currentStencilClear = null;
+
+			return {
+
+				setTest: function ( stencilTest ) {
+
+					if ( stencilTest ) {
+
+						enable( 2960 );
+
+					} else {
+
+						disable( 2960 );
+
+					}
+
+				},
+
+				setMask: function ( stencilMask ) {
+
+					if ( currentStencilMask !== stencilMask && ! locked ) {
+
+						gl.stencilMask( stencilMask );
+						currentStencilMask = stencilMask;
+
+					}
+
+				},
+
+				setFunc: function ( stencilFunc, stencilRef, stencilMask ) {
+
+					if ( currentStencilFunc !== stencilFunc ||
+					     currentStencilRef 	!== stencilRef 	||
+					     currentStencilFuncMask !== stencilMask ) {
+
+						gl.stencilFunc( stencilFunc, stencilRef, stencilMask );
+
+						currentStencilFunc = stencilFunc;
+						currentStencilRef = stencilRef;
+						currentStencilFuncMask = stencilMask;
+
+					}
+
+				},
+
+				setOp: function ( stencilFail, stencilZFail, stencilZPass ) {
+
+					if ( currentStencilFail	 !== stencilFail 	||
+					     currentStencilZFail !== stencilZFail ||
+					     currentStencilZPass !== stencilZPass ) {
+
+						gl.stencilOp( stencilFail, stencilZFail, stencilZPass );
+
+						currentStencilFail = stencilFail;
+						currentStencilZFail = stencilZFail;
+						currentStencilZPass = stencilZPass;
+
+					}
+
+				},
+
+				setLocked: function ( lock ) {
+
+					locked = lock;
+
+				},
+
+				setClear: function ( stencil ) {
+
+					if ( currentStencilClear !== stencil ) {
+
+						gl.clearStencil( stencil );
+						currentStencilClear = stencil;
+
+					}
+
+				},
+
+				reset: function () {
+
+					locked = false;
+
+					currentStencilMask = null;
+					currentStencilFunc = null;
+					currentStencilRef = null;
+					currentStencilFuncMask = null;
+					currentStencilFail = null;
+					currentStencilZFail = null;
+					currentStencilZPass = null;
+					currentStencilClear = null;
+
+				}
+
+			};
+
+		}
+
+		//
+
+		var colorBuffer = new ColorBuffer();
+		var depthBuffer = new DepthBuffer();
+		var stencilBuffer = new StencilBuffer();
+
+		var maxVertexAttributes = gl.getParameter( 34921 );
+		var newAttributes = new Uint8Array( maxVertexAttributes );
+		var enabledAttributes = new Uint8Array( maxVertexAttributes );
+		var attributeDivisors = new Uint8Array( maxVertexAttributes );
+
+		var enabledCapabilities = {};
+
+		var compressedTextureFormats = null;
+
+		var currentProgram = null;
+
+		var currentBlendingEnabled = null;
+		var currentBlending = null;
+		var currentBlendEquation = null;
+		var currentBlendSrc = null;
+		var currentBlendDst = null;
+		var currentBlendEquationAlpha = null;
+		var currentBlendSrcAlpha = null;
+		var currentBlendDstAlpha = null;
+		var currentPremultipledAlpha = false;
+
+		var currentFlipSided = null;
+		var currentCullFace = null;
+
+		var currentLineWidth = null;
+
+		var currentPolygonOffsetFactor = null;
+		var currentPolygonOffsetUnits = null;
+
+		var maxTextures = gl.getParameter( 35661 );
+
+		var lineWidthAvailable = false;
+		var version = 0;
+		var glVersion = gl.getParameter( 7938 );
+
+		if ( glVersion.indexOf( 'WebGL' ) !== - 1 ) {
+
+			version = parseFloat( /^WebGL\ ([0-9])/.exec( glVersion )[ 1 ] );
+			lineWidthAvailable = ( version >= 1.0 );
+
+		} else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) {
+
+			version = parseFloat( /^OpenGL\ ES\ ([0-9])/.exec( glVersion )[ 1 ] );
+			lineWidthAvailable = ( version >= 2.0 );
+
+		}
+
+		var currentTextureSlot = null;
+		var currentBoundTextures = {};
+
+		var currentScissor = new Vector4();
+		var currentViewport = new Vector4();
+
+		function createTexture( type, target, count ) {
+
+			var data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.
+			var texture = gl.createTexture();
+
+			gl.bindTexture( type, texture );
+			gl.texParameteri( type, 10241, 9728 );
+			gl.texParameteri( type, 10240, 9728 );
+
+			for ( var i = 0; i < count; i ++ ) {
+
+				gl.texImage2D( target + i, 0, 6408, 1, 1, 0, 6408, 5121, data );
+
+			}
+
+			return texture;
+
+		}
+
+		var emptyTextures = {};
+		emptyTextures[ 3553 ] = createTexture( 3553, 3553, 1 );
+		emptyTextures[ 34067 ] = createTexture( 34067, 34069, 6 );
+
+		// init
+
+		colorBuffer.setClear( 0, 0, 0, 1 );
+		depthBuffer.setClear( 1 );
+		stencilBuffer.setClear( 0 );
+
+		enable( 2929 );
+		depthBuffer.setFunc( LessEqualDepth );
+
+		setFlipSided( false );
+		setCullFace( CullFaceBack );
+		enable( 2884 );
+
+		setBlending( NoBlending );
+
+		//
+
+		function initAttributes() {
+
+			for ( var i = 0, l = newAttributes.length; i < l; i ++ ) {
+
+				newAttributes[ i ] = 0;
+
+			}
+
+		}
+
+		function enableAttribute( attribute ) {
+
+			enableAttributeAndDivisor( attribute, 0 );
+
+		}
+
+		function enableAttributeAndDivisor( attribute, meshPerAttribute ) {
+
+			newAttributes[ attribute ] = 1;
+
+			if ( enabledAttributes[ attribute ] === 0 ) {
+
+				gl.enableVertexAttribArray( attribute );
+				enabledAttributes[ attribute ] = 1;
+
+			}
+
+			if ( attributeDivisors[ attribute ] !== meshPerAttribute ) {
+
+				var extension = capabilities.isWebGL2 ? gl : extensions.get( 'ANGLE_instanced_arrays' );
+
+				extension[ capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE' ]( attribute, meshPerAttribute );
+				attributeDivisors[ attribute ] = meshPerAttribute;
+
+			}
+
+		}
+
+		function disableUnusedAttributes() {
+
+			for ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) {
+
+				if ( enabledAttributes[ i ] !== newAttributes[ i ] ) {
+
+					gl.disableVertexAttribArray( i );
+					enabledAttributes[ i ] = 0;
+
+				}
+
+			}
+
+		}
+
+		function enable( id ) {
+
+			if ( enabledCapabilities[ id ] !== true ) {
+
+				gl.enable( id );
+				enabledCapabilities[ id ] = true;
+
+			}
+
+		}
+
+		function disable( id ) {
+
+			if ( enabledCapabilities[ id ] !== false ) {
+
+				gl.disable( id );
+				enabledCapabilities[ id ] = false;
+
+			}
+
+		}
+
+		function getCompressedTextureFormats() {
+
+			if ( compressedTextureFormats === null ) {
+
+				compressedTextureFormats = [];
+
+				if ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||
+				     extensions.get( 'WEBGL_compressed_texture_s3tc' ) ||
+				     extensions.get( 'WEBGL_compressed_texture_etc1' ) ||
+				     extensions.get( 'WEBGL_compressed_texture_astc' ) ) {
+
+					var formats = gl.getParameter( 34467 );
+
+					for ( var i = 0; i < formats.length; i ++ ) {
+
+						compressedTextureFormats.push( formats[ i ] );
+
+					}
+
+				}
+
+			}
+
+			return compressedTextureFormats;
+
+		}
+
+		function useProgram( program ) {
+
+			if ( currentProgram !== program ) {
+
+				gl.useProgram( program );
+
+				currentProgram = program;
+
+				return true;
+
+			}
+
+			return false;
+
+		}
+
+		function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {
+
+			if ( blending === NoBlending ) {
+
+				if ( currentBlendingEnabled ) {
+
+					disable( 3042 );
+					currentBlendingEnabled = false;
+
+				}
+
+				return;
+
+			}
+
+			if ( ! currentBlendingEnabled ) {
+
+				enable( 3042 );
+				currentBlendingEnabled = true;
+
+			}
+
+			if ( blending !== CustomBlending ) {
+
+				if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {
+
+					if ( currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation ) {
+
+						gl.blendEquation( 32774 );
+
+						currentBlendEquation = AddEquation;
+						currentBlendEquationAlpha = AddEquation;
+
+					}
+
+					if ( premultipliedAlpha ) {
+
+						switch ( blending ) {
+
+							case NormalBlending:
+								gl.blendFuncSeparate( 1, 771, 1, 771 );
+								break;
+
+							case AdditiveBlending:
+								gl.blendFunc( 1, 1 );
+								break;
+
+							case SubtractiveBlending:
+								gl.blendFuncSeparate( 0, 0, 769, 771 );
+								break;
+
+							case MultiplyBlending:
+								gl.blendFuncSeparate( 0, 768, 0, 770 );
+								break;
+
+							default:
+								console.error( 'THREE.WebGLState: Invalid blending: ', blending );
+								break;
+
+						}
+
+					} else {
+
+						switch ( blending ) {
+
+							case NormalBlending:
+								gl.blendFuncSeparate( 770, 771, 1, 771 );
+								break;
+
+							case AdditiveBlending:
+								gl.blendFunc( 770, 1 );
+								break;
+
+							case SubtractiveBlending:
+								gl.blendFunc( 0, 769 );
+								break;
+
+							case MultiplyBlending:
+								gl.blendFunc( 0, 768 );
+								break;
+
+							default:
+								console.error( 'THREE.WebGLState: Invalid blending: ', blending );
+								break;
+
+						}
+
+					}
+
+					currentBlendSrc = null;
+					currentBlendDst = null;
+					currentBlendSrcAlpha = null;
+					currentBlendDstAlpha = null;
+
+					currentBlending = blending;
+					currentPremultipledAlpha = premultipliedAlpha;
+
+				}
+
+				return;
+
+			}
+
+			// custom blending
+
+			blendEquationAlpha = blendEquationAlpha || blendEquation;
+			blendSrcAlpha = blendSrcAlpha || blendSrc;
+			blendDstAlpha = blendDstAlpha || blendDst;
+
+			if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {
+
+				gl.blendEquationSeparate( utils.convert( blendEquation ), utils.convert( blendEquationAlpha ) );
+
+				currentBlendEquation = blendEquation;
+				currentBlendEquationAlpha = blendEquationAlpha;
+
+			}
+
+			if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {
+
+				gl.blendFuncSeparate( utils.convert( blendSrc ), utils.convert( blendDst ), utils.convert( blendSrcAlpha ), utils.convert( blendDstAlpha ) );
+
+				currentBlendSrc = blendSrc;
+				currentBlendDst = blendDst;
+				currentBlendSrcAlpha = blendSrcAlpha;
+				currentBlendDstAlpha = blendDstAlpha;
+
+			}
+
+			currentBlending = blending;
+			currentPremultipledAlpha = null;
+
+		}
+
+		function setMaterial( material, frontFaceCW ) {
+
+			material.side === DoubleSide
+				? disable( 2884 )
+				: enable( 2884 );
+
+			var flipSided = ( material.side === BackSide );
+			if ( frontFaceCW ) flipSided = ! flipSided;
+
+			setFlipSided( flipSided );
+
+			( material.blending === NormalBlending && material.transparent === false )
+				? setBlending( NoBlending )
+				: setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );
+
+			depthBuffer.setFunc( material.depthFunc );
+			depthBuffer.setTest( material.depthTest );
+			depthBuffer.setMask( material.depthWrite );
+			colorBuffer.setMask( material.colorWrite );
+
+			setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );
+
+		}
+
+		//
+
+		function setFlipSided( flipSided ) {
+
+			if ( currentFlipSided !== flipSided ) {
+
+				if ( flipSided ) {
+
+					gl.frontFace( 2304 );
+
+				} else {
+
+					gl.frontFace( 2305 );
+
+				}
+
+				currentFlipSided = flipSided;
+
+			}
+
+		}
+
+		function setCullFace( cullFace ) {
+
+			if ( cullFace !== CullFaceNone ) {
+
+				enable( 2884 );
+
+				if ( cullFace !== currentCullFace ) {
+
+					if ( cullFace === CullFaceBack ) {
+
+						gl.cullFace( 1029 );
+
+					} else if ( cullFace === CullFaceFront ) {
+
+						gl.cullFace( 1028 );
+
+					} else {
+
+						gl.cullFace( 1032 );
+
+					}
+
+				}
+
+			} else {
+
+				disable( 2884 );
+
+			}
+
+			currentCullFace = cullFace;
+
+		}
+
+		function setLineWidth( width ) {
+
+			if ( width !== currentLineWidth ) {
+
+				if ( lineWidthAvailable ) gl.lineWidth( width );
+
+				currentLineWidth = width;
+
+			}
+
+		}
+
+		function setPolygonOffset( polygonOffset, factor, units ) {
+
+			if ( polygonOffset ) {
+
+				enable( 32823 );
+
+				if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {
+
+					gl.polygonOffset( factor, units );
+
+					currentPolygonOffsetFactor = factor;
+					currentPolygonOffsetUnits = units;
+
+				}
+
+			} else {
+
+				disable( 32823 );
+
+			}
+
+		}
+
+		function setScissorTest( scissorTest ) {
+
+			if ( scissorTest ) {
+
+				enable( 3089 );
+
+			} else {
+
+				disable( 3089 );
+
+			}
+
+		}
+
+		// texture
+
+		function activeTexture( webglSlot ) {
+
+			if ( webglSlot === undefined ) webglSlot = 33984 + maxTextures - 1;
+
+			if ( currentTextureSlot !== webglSlot ) {
+
+				gl.activeTexture( webglSlot );
+				currentTextureSlot = webglSlot;
+
+			}
+
+		}
+
+		function bindTexture( webglType, webglTexture ) {
+
+			if ( currentTextureSlot === null ) {
+
+				activeTexture();
+
+			}
+
+			var boundTexture = currentBoundTextures[ currentTextureSlot ];
+
+			if ( boundTexture === undefined ) {
+
+				boundTexture = { type: undefined, texture: undefined };
+				currentBoundTextures[ currentTextureSlot ] = boundTexture;
+
+			}
+
+			if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {
+
+				gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );
+
+				boundTexture.type = webglType;
+				boundTexture.texture = webglTexture;
+
+			}
+
+		}
+
+		function compressedTexImage2D() {
+
+			try {
+
+				gl.compressedTexImage2D.apply( gl, arguments );
+
+			} catch ( error ) {
+
+				console.error( 'THREE.WebGLState:', error );
+
+			}
+
+		}
+
+		function texImage2D() {
+
+			try {
+
+				gl.texImage2D.apply( gl, arguments );
+
+			} catch ( error ) {
+
+				console.error( 'THREE.WebGLState:', error );
+
+			}
+
+		}
+
+		function texImage3D() {
+
+			try {
+
+				gl.texImage3D.apply( gl, arguments );
+
+			} catch ( error ) {
+
+				console.error( 'THREE.WebGLState:', error );
+
+			}
+
+		}
+
+		//
+
+		function scissor( scissor ) {
+
+			if ( currentScissor.equals( scissor ) === false ) {
+
+				gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );
+				currentScissor.copy( scissor );
+
+			}
+
+		}
+
+		function viewport( viewport ) {
+
+			if ( currentViewport.equals( viewport ) === false ) {
+
+				gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );
+				currentViewport.copy( viewport );
+
+			}
+
+		}
+
+		//
+
+		function reset() {
+
+			for ( var i = 0; i < enabledAttributes.length; i ++ ) {
+
+				if ( enabledAttributes[ i ] === 1 ) {
+
+					gl.disableVertexAttribArray( i );
+					enabledAttributes[ i ] = 0;
+
+				}
+
+			}
+
+			enabledCapabilities = {};
+
+			compressedTextureFormats = null;
+
+			currentTextureSlot = null;
+			currentBoundTextures = {};
+
+			currentProgram = null;
+
+			currentBlending = null;
+
+			currentFlipSided = null;
+			currentCullFace = null;
+
+			colorBuffer.reset();
+			depthBuffer.reset();
+			stencilBuffer.reset();
+
+		}
+
+		return {
+
+			buffers: {
+				color: colorBuffer,
+				depth: depthBuffer,
+				stencil: stencilBuffer
+			},
+
+			initAttributes: initAttributes,
+			enableAttribute: enableAttribute,
+			enableAttributeAndDivisor: enableAttributeAndDivisor,
+			disableUnusedAttributes: disableUnusedAttributes,
+			enable: enable,
+			disable: disable,
+			getCompressedTextureFormats: getCompressedTextureFormats,
+
+			useProgram: useProgram,
+
+			setBlending: setBlending,
+			setMaterial: setMaterial,
+
+			setFlipSided: setFlipSided,
+			setCullFace: setCullFace,
+
+			setLineWidth: setLineWidth,
+			setPolygonOffset: setPolygonOffset,
+
+			setScissorTest: setScissorTest,
+
+			activeTexture: activeTexture,
+			bindTexture: bindTexture,
+			compressedTexImage2D: compressedTexImage2D,
+			texImage2D: texImage2D,
+			texImage3D: texImage3D,
+
+			scissor: scissor,
+			viewport: viewport,
+
+			reset: reset
+
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ) {
+
+		var _videoTextures = {};
+		var _canvas;
+
+		//
+
+		var useOffscreenCanvas = typeof OffscreenCanvas !== 'undefined';
+
+		function createCanvas( width, height ) {
+
+			// Use OffscreenCanvas when available. Specially needed in web workers
+
+			return useOffscreenCanvas ?
+				new OffscreenCanvas( width, height ) :
+				document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
+
+		}
+
+		function resizeImage( image, needsPowerOfTwo, needsNewCanvas, maxSize ) {
+
+			var scale = 1;
+
+			// handle case if texture exceeds max size
+
+			if ( image.width > maxSize || image.height > maxSize ) {
+
+				scale = maxSize / Math.max( image.width, image.height );
+
+			}
+
+			// only perform resize if necessary
+
+			if ( scale < 1 || needsPowerOfTwo === true ) {
+
+				// only perform resize for certain image types
+
+				if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) ||
+					( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) ||
+					( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) {
+
+					var floor = needsPowerOfTwo ? _Math.floorPowerOfTwo : Math.floor;
+
+					var width = floor( scale * image.width );
+					var height = floor( scale * image.height );
+
+					if ( _canvas === undefined ) _canvas = createCanvas( width, height );
+
+					// cube textures can't reuse the same canvas
+
+					var canvas = needsNewCanvas ? createCanvas( width, height ) : _canvas;
+
+					canvas.width = width;
+					canvas.height = height;
+
+					var context = canvas.getContext( '2d' );
+					context.drawImage( image, 0, 0, width, height );
+
+					console.warn( 'THREE.WebGLRenderer: Texture has been resized from (' + image.width + 'x' + image.height + ') to (' + width + 'x' + height + ').' );
+
+					return canvas;
+
+				} else {
+
+					if ( 'data' in image ) {
+
+						console.warn( 'THREE.WebGLRenderer: Image in DataTexture is too big (' + image.width + 'x' + image.height + ').' );
+
+					}
+
+					return image;
+
+				}
+
+			}
+
+			return image;
+
+		}
+
+		function isPowerOfTwo( image ) {
+
+			return _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height );
+
+		}
+
+		function textureNeedsPowerOfTwo( texture ) {
+
+			if ( capabilities.isWebGL2 ) return false;
+
+			return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||
+				( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );
+
+		}
+
+		function textureNeedsGenerateMipmaps( texture, supportsMips ) {
+
+			return texture.generateMipmaps && supportsMips &&
+				texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
+
+		}
+
+		function generateMipmap( target, texture, width, height ) {
+
+			_gl.generateMipmap( target );
+
+			var textureProperties = properties.get( texture );
+
+			// Note: Math.log( x ) * Math.LOG2E used instead of Math.log2( x ) which is not supported by IE11
+			textureProperties.__maxMipLevel = Math.log( Math.max( width, height ) ) * Math.LOG2E;
+
+		}
+
+		function getInternalFormat( glFormat, glType ) {
+
+			if ( ! capabilities.isWebGL2 ) return glFormat;
+
+			var internalFormat = glFormat;
+
+			if ( glFormat === 6403 ) {
+
+				if ( glType === 5126 ) internalFormat = 33326;
+				if ( glType === 5131 ) internalFormat = 33325;
+				if ( glType === 5121 ) internalFormat = 33321;
+
+			}
+
+			if ( glFormat === 6407 ) {
+
+				if ( glType === 5126 ) internalFormat = 34837;
+				if ( glType === 5131 ) internalFormat = 34843;
+				if ( glType === 5121 ) internalFormat = 32849;
+
+			}
+
+			if ( glFormat === 6408 ) {
+
+				if ( glType === 5126 ) internalFormat = 34836;
+				if ( glType === 5131 ) internalFormat = 34842;
+				if ( glType === 5121 ) internalFormat = 32856;
+
+			}
+
+			if ( internalFormat === 33325 || internalFormat === 33326 ||
+				internalFormat === 34842 || internalFormat === 34836 ) {
+
+				extensions.get( 'EXT_color_buffer_float' );
+
+			} else if ( internalFormat === 34843 || internalFormat === 34837 ) {
+
+				console.warn( 'THREE.WebGLRenderer: Floating point textures with RGB format not supported. Please use RGBA instead.' );
+
+			}
+
+			return internalFormat;
+
+		}
+
+		// Fallback filters for non-power-of-2 textures
+
+		function filterFallback( f ) {
+
+			if ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) {
+
+				return 9728;
+
+			}
+
+			return 9729;
+
+		}
+
+		//
+
+		function onTextureDispose( event ) {
+
+			var texture = event.target;
+
+			texture.removeEventListener( 'dispose', onTextureDispose );
+
+			deallocateTexture( texture );
+
+			if ( texture.isVideoTexture ) {
+
+				delete _videoTextures[ texture.id ];
+
+			}
+
+			info.memory.textures --;
+
+		}
+
+		function onRenderTargetDispose( event ) {
+
+			var renderTarget = event.target;
+
+			renderTarget.removeEventListener( 'dispose', onRenderTargetDispose );
+
+			deallocateRenderTarget( renderTarget );
+
+			info.memory.textures --;
+
+		}
+
+		//
+
+		function deallocateTexture( texture ) {
+
+			var textureProperties = properties.get( texture );
+
+			if ( textureProperties.__webglInit === undefined ) return;
+
+			_gl.deleteTexture( textureProperties.__webglTexture );
+
+			properties.remove( texture );
+
+		}
+
+		function deallocateRenderTarget( renderTarget ) {
+
+			var renderTargetProperties = properties.get( renderTarget );
+			var textureProperties = properties.get( renderTarget.texture );
+
+			if ( ! renderTarget ) return;
+
+			if ( textureProperties.__webglTexture !== undefined ) {
+
+				_gl.deleteTexture( textureProperties.__webglTexture );
+
+			}
+
+			if ( renderTarget.depthTexture ) {
+
+				renderTarget.depthTexture.dispose();
+
+			}
+
+			if ( renderTarget.isWebGLRenderTargetCube ) {
+
+				for ( var i = 0; i < 6; i ++ ) {
+
+					_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );
+					if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );
+
+				}
+
+			} else {
+
+				_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );
+				if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );
+
+			}
+
+			properties.remove( renderTarget.texture );
+			properties.remove( renderTarget );
+
+		}
+
+		//
+
+		var textureUnits = 0;
+
+		function resetTextureUnits() {
+
+			textureUnits = 0;
+
+		}
+
+		function allocateTextureUnit() {
+
+			var textureUnit = textureUnits;
+
+			if ( textureUnit >= capabilities.maxTextures ) {
+
+				console.warn( 'THREE.WebGLTextures: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );
+
+			}
+
+			textureUnits += 1;
+
+			return textureUnit;
+
+		}
+
+		//
+
+		function setTexture2D( texture, slot ) {
+
+			var textureProperties = properties.get( texture );
+
+			if ( texture.isVideoTexture ) updateVideoTexture( texture );
+
+			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
+
+				var image = texture.image;
+
+				if ( image === undefined ) {
+
+					console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined' );
+
+				} else if ( image.complete === false ) {
+
+					console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete' );
+
+				} else {
+
+					uploadTexture( textureProperties, texture, slot );
+					return;
+
+				}
+
+			}
+
+			state.activeTexture( 33984 + slot );
+			state.bindTexture( 3553, textureProperties.__webglTexture );
+
+		}
+
+		function setTexture2DArray( texture, slot ) {
+
+			var textureProperties = properties.get( texture );
+
+			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
+
+				uploadTexture( textureProperties, texture, slot );
+				return;
+
+			}
+
+			state.activeTexture( 33984 + slot );
+			state.bindTexture( 35866, textureProperties.__webglTexture );
+
+		}
+
+		function setTexture3D( texture, slot ) {
+
+			var textureProperties = properties.get( texture );
+
+			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
+
+				uploadTexture( textureProperties, texture, slot );
+				return;
+
+			}
+
+			state.activeTexture( 33984 + slot );
+			state.bindTexture( 32879, textureProperties.__webglTexture );
+
+		}
+
+		function setTextureCube( texture, slot ) {
+
+			var textureProperties = properties.get( texture );
+
+			if ( texture.image.length === 6 ) {
+
+				if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
+
+					initTexture( textureProperties, texture );
+
+					state.activeTexture( 33984 + slot );
+					state.bindTexture( 34067, textureProperties.__webglTexture );
+
+					_gl.pixelStorei( 37440, texture.flipY );
+
+					var isCompressed = ( texture && texture.isCompressedTexture );
+					var isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );
+
+					var cubeImage = [];
+
+					for ( var i = 0; i < 6; i ++ ) {
+
+						if ( ! isCompressed && ! isDataTexture ) {
+
+							cubeImage[ i ] = resizeImage( texture.image[ i ], false, true, capabilities.maxCubemapSize );
+
+						} else {
+
+							cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];
+
+						}
+
+					}
+
+					var image = cubeImage[ 0 ],
+						supportsMips = isPowerOfTwo( image ) || capabilities.isWebGL2,
+						glFormat = utils.convert( texture.format ),
+						glType = utils.convert( texture.type ),
+						glInternalFormat = getInternalFormat( glFormat, glType );
+
+					setTextureParameters( 34067, texture, supportsMips );
+
+					for ( var i = 0; i < 6; i ++ ) {
+
+						if ( ! isCompressed ) {
+
+							if ( isDataTexture ) {
+
+								state.texImage2D( 34069 + i, 0, glInternalFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );
+
+							} else {
+
+								state.texImage2D( 34069 + i, 0, glInternalFormat, glFormat, glType, cubeImage[ i ] );
+
+							}
+
+						} else {
+
+							var mipmap, mipmaps = cubeImage[ i ].mipmaps;
+
+							for ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {
+
+								mipmap = mipmaps[ j ];
+
+								if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {
+
+									if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {
+
+										state.compressedTexImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );
+
+									} else {
+
+										console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' );
+
+									}
+
+								} else {
+
+									state.texImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
+
+								}
+
+							}
+
+						}
+
+					}
+
+					if ( ! isCompressed ) {
+
+						textureProperties.__maxMipLevel = 0;
+
+					} else {
+
+						textureProperties.__maxMipLevel = mipmaps.length - 1;
+
+					}
+
+					if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {
+
+						// We assume images for cube map have the same size.
+						generateMipmap( 34067, texture, image.width, image.height );
+
+					}
+
+					textureProperties.__version = texture.version;
+
+					if ( texture.onUpdate ) texture.onUpdate( texture );
+
+				} else {
+
+					state.activeTexture( 33984 + slot );
+					state.bindTexture( 34067, textureProperties.__webglTexture );
+
+				}
+
+			}
+
+		}
+
+		function setTextureCubeDynamic( texture, slot ) {
+
+			state.activeTexture( 33984 + slot );
+			state.bindTexture( 34067, properties.get( texture ).__webglTexture );
+
+		}
+
+		function setTextureParameters( textureType, texture, supportsMips ) {
+
+			var extension;
+
+			if ( supportsMips ) {
+
+				_gl.texParameteri( textureType, 10242, utils.convert( texture.wrapS ) );
+				_gl.texParameteri( textureType, 10243, utils.convert( texture.wrapT ) );
+
+				if ( textureType === 32879 || textureType === 35866 ) {
+
+					_gl.texParameteri( textureType, 32882, utils.convert( texture.wrapR ) );
+
+				}
+
+				_gl.texParameteri( textureType, 10240, utils.convert( texture.magFilter ) );
+				_gl.texParameteri( textureType, 10241, utils.convert( texture.minFilter ) );
+
+			} else {
+
+				_gl.texParameteri( textureType, 10242, 33071 );
+				_gl.texParameteri( textureType, 10243, 33071 );
+
+				if ( textureType === 32879 || textureType === 35866 ) {
+
+					_gl.texParameteri( textureType, 32882, 33071 );
+
+				}
+
+				if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {
+
+					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.' );
+
+				}
+
+				_gl.texParameteri( textureType, 10240, filterFallback( texture.magFilter ) );
+				_gl.texParameteri( textureType, 10241, filterFallback( texture.minFilter ) );
+
+				if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {
+
+					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.' );
+
+				}
+
+			}
+
+			extension = extensions.get( 'EXT_texture_filter_anisotropic' );
+
+			if ( extension ) {
+
+				if ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;
+				if ( texture.type === HalfFloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_half_float_linear' ) ) === null ) return;
+
+				if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {
+
+					_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );
+					properties.get( texture ).__currentAnisotropy = texture.anisotropy;
+
+				}
+
+			}
+
+		}
+
+		function initTexture( textureProperties, texture ) {
+
+			if ( textureProperties.__webglInit === undefined ) {
+
+				textureProperties.__webglInit = true;
+
+				texture.addEventListener( 'dispose', onTextureDispose );
+
+				textureProperties.__webglTexture = _gl.createTexture();
+
+				info.memory.textures ++;
+
+			}
+
+		}
+
+		function uploadTexture( textureProperties, texture, slot ) {
+
+			var textureType = 3553;
+
+			if ( texture.isDataTexture2DArray ) textureType = 35866;
+			if ( texture.isDataTexture3D ) textureType = 32879;
+
+			initTexture( textureProperties, texture );
+
+			state.activeTexture( 33984 + slot );
+			state.bindTexture( textureType, textureProperties.__webglTexture );
+
+			_gl.pixelStorei( 37440, texture.flipY );
+			_gl.pixelStorei( 37441, texture.premultiplyAlpha );
+			_gl.pixelStorei( 3317, texture.unpackAlignment );
+
+			var needsPowerOfTwo = textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( texture.image ) === false;
+			var image = resizeImage( texture.image, needsPowerOfTwo, false, capabilities.maxTextureSize );
+
+			var supportsMips = isPowerOfTwo( image ) || capabilities.isWebGL2,
+				glFormat = utils.convert( texture.format ),
+				glType = utils.convert( texture.type ),
+				glInternalFormat = getInternalFormat( glFormat, glType );
+
+			setTextureParameters( textureType, texture, supportsMips );
+
+			var mipmap, mipmaps = texture.mipmaps;
+
+			if ( texture.isDepthTexture ) {
+
+				// populate depth texture with dummy data
+
+				glInternalFormat = 6402;
+
+				if ( texture.type === FloatType ) {
+
+					if ( ! capabilities.isWebGL2 ) throw new Error( 'Float Depth Texture only supported in WebGL2.0' );
+					glInternalFormat = 36012;
+
+				} else if ( capabilities.isWebGL2 ) {
+
+					// WebGL 2.0 requires signed internalformat for glTexImage2D
+					glInternalFormat = 33189;
+
+				}
+
+				if ( texture.format === DepthFormat && glInternalFormat === 6402 ) {
+
+					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
+					// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
+					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
+					if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {
+
+						console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );
+
+						texture.type = UnsignedShortType;
+						glType = utils.convert( texture.type );
+
+					}
+
+				}
+
+				// Depth stencil textures need the DEPTH_STENCIL internal format
+				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
+				if ( texture.format === DepthStencilFormat ) {
+
+					glInternalFormat = 34041;
+
+					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
+					// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
+					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
+					if ( texture.type !== UnsignedInt248Type ) {
+
+						console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );
+
+						texture.type = UnsignedInt248Type;
+						glType = utils.convert( texture.type );
+
+					}
+
+				}
+
+				state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null );
+
+			} else if ( texture.isDataTexture ) {
+
+				// use manually created mipmaps if available
+				// if there are no manual mipmaps
+				// set 0 level mipmap and then use GL to generate other mipmap levels
+
+				if ( mipmaps.length > 0 && supportsMips ) {
+
+					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
+
+						mipmap = mipmaps[ i ];
+						state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
+
+					}
+
+					texture.generateMipmaps = false;
+					textureProperties.__maxMipLevel = mipmaps.length - 1;
+
+				} else {
+
+					state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data );
+					textureProperties.__maxMipLevel = 0;
+
+				}
+
+			} else if ( texture.isCompressedTexture ) {
+
+				for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
+
+					mipmap = mipmaps[ i ];
+
+					if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {
+
+						if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {
+
+							state.compressedTexImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );
+
+						} else {
+
+							console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );
+
+						}
+
+					} else {
+
+						state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
+
+					}
+
+				}
+
+				textureProperties.__maxMipLevel = mipmaps.length - 1;
+
+			} else if ( texture.isDataTexture2DArray ) {
+
+				state.texImage3D( 35866, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data );
+				textureProperties.__maxMipLevel = 0;
+
+			} else if ( texture.isDataTexture3D ) {
+
+				state.texImage3D( 32879, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data );
+				textureProperties.__maxMipLevel = 0;
+
+			} else {
+
+				// regular Texture (image, video, canvas)
+
+				// use manually created mipmaps if available
+				// if there are no manual mipmaps
+				// set 0 level mipmap and then use GL to generate other mipmap levels
+
+				if ( mipmaps.length > 0 && supportsMips ) {
+
+					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
+
+						mipmap = mipmaps[ i ];
+						state.texImage2D( 3553, i, glInternalFormat, glFormat, glType, mipmap );
+
+					}
+
+					texture.generateMipmaps = false;
+					textureProperties.__maxMipLevel = mipmaps.length - 1;
+
+				} else {
+
+					state.texImage2D( 3553, 0, glInternalFormat, glFormat, glType, image );
+					textureProperties.__maxMipLevel = 0;
+
+				}
+
+			}
+
+			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {
+
+				generateMipmap( 3553, texture, image.width, image.height );
+
+			}
+
+			textureProperties.__version = texture.version;
+
+			if ( texture.onUpdate ) texture.onUpdate( texture );
+
+		}
+
+		// Render targets
+
+		// Setup storage for target texture and bind it to correct framebuffer
+		function setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) {
+
+			var glFormat = utils.convert( renderTarget.texture.format );
+			var glType = utils.convert( renderTarget.texture.type );
+			var glInternalFormat = getInternalFormat( glFormat, glType );
+			state.texImage2D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );
+			_gl.bindFramebuffer( 36160, framebuffer );
+			_gl.framebufferTexture2D( 36160, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );
+			_gl.bindFramebuffer( 36160, null );
+
+		}
+
+		// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
+		function setupRenderBufferStorage( renderbuffer, renderTarget, isMultisample ) {
+
+			_gl.bindRenderbuffer( 36161, renderbuffer );
+
+			if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {
+
+				if ( isMultisample ) {
+
+					var samples = getRenderTargetSamples( renderTarget );
+
+					_gl.renderbufferStorageMultisample( 36161, samples, 33189, renderTarget.width, renderTarget.height );
+
+				} else {
+
+					_gl.renderbufferStorage( 36161, 33189, renderTarget.width, renderTarget.height );
+
+				}
+
+				_gl.framebufferRenderbuffer( 36160, 36096, 36161, renderbuffer );
+
+			} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {
+
+				if ( isMultisample ) {
+
+					var samples = getRenderTargetSamples( renderTarget );
+
+					_gl.renderbufferStorageMultisample( 36161, samples, 34041, renderTarget.width, renderTarget.height );
+
+				} else {
+
+					_gl.renderbufferStorage( 36161, 34041, renderTarget.width, renderTarget.height );
+
+				}
+
+
+				_gl.framebufferRenderbuffer( 36160, 33306, 36161, renderbuffer );
+
+			} else {
+
+				var glFormat = utils.convert( renderTarget.texture.format );
+				var glType = utils.convert( renderTarget.texture.type );
+				var glInternalFormat = getInternalFormat( glFormat, glType );
+
+				if ( isMultisample ) {
+
+					var samples = getRenderTargetSamples( renderTarget );
+
+					_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );
+
+				} else {
+
+					_gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height );
+
+				}
+
+			}
+
+			_gl.bindRenderbuffer( 36161, null );
+
+		}
+
+		// Setup resources for a Depth Texture for a FBO (needs an extension)
+		function setupDepthTexture( framebuffer, renderTarget ) {
+
+			var isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );
+			if ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' );
+
+			_gl.bindFramebuffer( 36160, framebuffer );
+
+			if ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {
+
+				throw new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' );
+
+			}
+
+			// upload an empty depth texture with framebuffer size
+			if ( ! properties.get( renderTarget.depthTexture ).__webglTexture ||
+					renderTarget.depthTexture.image.width !== renderTarget.width ||
+					renderTarget.depthTexture.image.height !== renderTarget.height ) {
+
+				renderTarget.depthTexture.image.width = renderTarget.width;
+				renderTarget.depthTexture.image.height = renderTarget.height;
+				renderTarget.depthTexture.needsUpdate = true;
+
+			}
+
+			setTexture2D( renderTarget.depthTexture, 0 );
+
+			var webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;
+
+			if ( renderTarget.depthTexture.format === DepthFormat ) {
+
+				_gl.framebufferTexture2D( 36160, 36096, 3553, webglDepthTexture, 0 );
+
+			} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {
+
+				_gl.framebufferTexture2D( 36160, 33306, 3553, webglDepthTexture, 0 );
+
+			} else {
+
+				throw new Error( 'Unknown depthTexture format' );
+
+			}
+
+		}
+
+		// Setup GL resources for a non-texture depth buffer
+		function setupDepthRenderbuffer( renderTarget ) {
+
+			var renderTargetProperties = properties.get( renderTarget );
+
+			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
+
+			if ( renderTarget.depthTexture ) {
+
+				if ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' );
+
+				setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );
+
+			} else {
+
+				if ( isCube ) {
+
+					renderTargetProperties.__webglDepthbuffer = [];
+
+					for ( var i = 0; i < 6; i ++ ) {
+
+						_gl.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer[ i ] );
+						renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();
+						setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );
+
+					}
+
+				} else {
+
+					_gl.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer );
+					renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
+					setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );
+
+				}
+
+			}
+
+			_gl.bindFramebuffer( 36160, null );
+
+		}
+
+		// Set up GL resources for the render target
+		function setupRenderTarget( renderTarget ) {
+
+			var renderTargetProperties = properties.get( renderTarget );
+			var textureProperties = properties.get( renderTarget.texture );
+
+			renderTarget.addEventListener( 'dispose', onRenderTargetDispose );
+
+			textureProperties.__webglTexture = _gl.createTexture();
+
+			info.memory.textures ++;
+
+			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
+			var isMultisample = ( renderTarget.isWebGLMultisampleRenderTarget === true );
+			var supportsMips = isPowerOfTwo( renderTarget ) || capabilities.isWebGL2;
+
+			// Setup framebuffer
+
+			if ( isCube ) {
+
+				renderTargetProperties.__webglFramebuffer = [];
+
+				for ( var i = 0; i < 6; i ++ ) {
+
+					renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();
+
+				}
+
+			} else {
+
+				renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();
+
+				if ( isMultisample ) {
+
+					if ( capabilities.isWebGL2 ) {
+
+						renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer();
+						renderTargetProperties.__webglColorRenderbuffer = _gl.createRenderbuffer();
+
+						_gl.bindRenderbuffer( 36161, renderTargetProperties.__webglColorRenderbuffer );
+						var glFormat = utils.convert( renderTarget.texture.format );
+						var glType = utils.convert( renderTarget.texture.type );
+						var glInternalFormat = getInternalFormat( glFormat, glType );
+						var samples = getRenderTargetSamples( renderTarget );
+						_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );
+
+						_gl.bindFramebuffer( 36160, renderTargetProperties.__webglMultisampledFramebuffer );
+						_gl.framebufferRenderbuffer( 36160, 36064, 36161, renderTargetProperties.__webglColorRenderbuffer );
+						_gl.bindRenderbuffer( 36161, null );
+
+						if ( renderTarget.depthBuffer ) {
+
+							renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer();
+							setupRenderBufferStorage( renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true );
+
+						}
+
+						_gl.bindFramebuffer( 36160, null );
+
+
+					} else {
+
+						console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' );
+
+					}
+
+				}
+
+			}
+
+			// Setup color buffer
+
+			if ( isCube ) {
+
+				state.bindTexture( 34067, textureProperties.__webglTexture );
+				setTextureParameters( 34067, renderTarget.texture, supportsMips );
+
+				for ( var i = 0; i < 6; i ++ ) {
+
+					setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, 36064, 34069 + i );
+
+				}
+
+				if ( textureNeedsGenerateMipmaps( renderTarget.texture, supportsMips ) ) {
+
+					generateMipmap( 34067, renderTarget.texture, renderTarget.width, renderTarget.height );
+
+				}
+
+				state.bindTexture( 34067, null );
+
+			} else {
+
+				state.bindTexture( 3553, textureProperties.__webglTexture );
+				setTextureParameters( 3553, renderTarget.texture, supportsMips );
+				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, 36064, 3553 );
+
+				if ( textureNeedsGenerateMipmaps( renderTarget.texture, supportsMips ) ) {
+
+					generateMipmap( 3553, renderTarget.texture, renderTarget.width, renderTarget.height );
+
+				}
+
+				state.bindTexture( 3553, null );
+
+			}
+
+			// Setup depth and stencil buffers
+
+			if ( renderTarget.depthBuffer ) {
+
+				setupDepthRenderbuffer( renderTarget );
+
+			}
+
+		}
+
+		function updateRenderTargetMipmap( renderTarget ) {
+
+			var texture = renderTarget.texture;
+			var supportsMips = isPowerOfTwo( renderTarget ) || capabilities.isWebGL2;
+
+			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {
+
+				var target = renderTarget.isWebGLRenderTargetCube ? 34067 : 3553;
+				var webglTexture = properties.get( texture ).__webglTexture;
+
+				state.bindTexture( target, webglTexture );
+				generateMipmap( target, texture, renderTarget.width, renderTarget.height );
+				state.bindTexture( target, null );
+
+			}
+
+		}
+
+		function updateMultisampleRenderTarget( renderTarget ) {
+
+			if ( renderTarget.isWebGLMultisampleRenderTarget ) {
+
+				if ( capabilities.isWebGL2 ) {
+
+					var renderTargetProperties = properties.get( renderTarget );
+
+					_gl.bindFramebuffer( 36008, renderTargetProperties.__webglMultisampledFramebuffer );
+					_gl.bindFramebuffer( 36009, renderTargetProperties.__webglFramebuffer );
+
+					var width = renderTarget.width;
+					var height = renderTarget.height;
+					var mask = 16384;
+
+					if ( renderTarget.depthBuffer ) mask |= 256;
+					if ( renderTarget.stencilBuffer ) mask |= 1024;
+
+					_gl.blitFramebuffer( 0, 0, width, height, 0, 0, width, height, mask, 9728 );
+
+				} else {
+
+					console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' );
+
+				}
+
+			}
+
+		}
+
+		function getRenderTargetSamples( renderTarget ) {
+
+			return ( capabilities.isWebGL2 && renderTarget.isWebGLMultisampleRenderTarget ) ?
+				Math.min( capabilities.maxSamples, renderTarget.samples ) : 0;
+
+		}
+
+		function updateVideoTexture( texture ) {
+
+			var id = texture.id;
+			var frame = info.render.frame;
+
+			// Check the last frame we updated the VideoTexture
+
+			if ( _videoTextures[ id ] !== frame ) {
+
+				_videoTextures[ id ] = frame;
+				texture.update();
+
+			}
+
+		}
+
+		// backwards compatibility
+
+		var warnedTexture2D = false;
+		var warnedTextureCube = false;
+
+		function safeSetTexture2D( texture, slot ) {
+
+			if ( texture && texture.isWebGLRenderTarget ) {
+
+				if ( warnedTexture2D === false ) {
+
+					console.warn( "THREE.WebGLTextures.safeSetTexture2D: don't use render targets as textures. Use their .texture property instead." );
+					warnedTexture2D = true;
+
+				}
+
+				texture = texture.texture;
+
+			}
+
+			setTexture2D( texture, slot );
+
+		}
+
+		function safeSetTextureCube( texture, slot ) {
+
+			if ( texture && texture.isWebGLRenderTargetCube ) {
+
+				if ( warnedTextureCube === false ) {
+
+					console.warn( "THREE.WebGLTextures.safeSetTextureCube: don't use cube render targets as textures. Use their .texture property instead." );
+					warnedTextureCube = true;
+
+				}
+
+				texture = texture.texture;
+
+			}
+
+			// currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture
+			// TODO: unify these code paths
+			if ( ( texture && texture.isCubeTexture ) ||
+				( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {
+
+				// CompressedTexture can have Array in image :/
+
+				// this function alone should take care of cube textures
+				setTextureCube( texture, slot );
+
+			} else {
+
+				// assumed: texture property of THREE.WebGLRenderTargetCube
+				setTextureCubeDynamic( texture, slot );
+
+			}
+
+		}
+
+		//
+
+		this.allocateTextureUnit = allocateTextureUnit;
+		this.resetTextureUnits = resetTextureUnits;
+
+		this.setTexture2D = setTexture2D;
+		this.setTexture2DArray = setTexture2DArray;
+		this.setTexture3D = setTexture3D;
+		this.setTextureCube = setTextureCube;
+		this.setTextureCubeDynamic = setTextureCubeDynamic;
+		this.setupRenderTarget = setupRenderTarget;
+		this.updateRenderTargetMipmap = updateRenderTargetMipmap;
+		this.updateMultisampleRenderTarget = updateMultisampleRenderTarget;
+
+		this.safeSetTexture2D = safeSetTexture2D;
+		this.safeSetTextureCube = safeSetTextureCube;
+
+	}
+
+	/**
+	 * @author thespite / http://www.twitter.com/thespite
+	 */
+
+	function WebGLUtils( gl, extensions, capabilities ) {
+
+		function convert( p ) {
+
+			var extension;
+
+			if ( p === RepeatWrapping ) return 10497;
+			if ( p === ClampToEdgeWrapping ) return 33071;
+			if ( p === MirroredRepeatWrapping ) return 33648;
+
+			if ( p === NearestFilter ) return 9728;
+			if ( p === NearestMipMapNearestFilter ) return 9984;
+			if ( p === NearestMipMapLinearFilter ) return 9986;
+
+			if ( p === LinearFilter ) return 9729;
+			if ( p === LinearMipMapNearestFilter ) return 9985;
+			if ( p === LinearMipMapLinearFilter ) return 9987;
+
+			if ( p === UnsignedByteType ) return 5121;
+			if ( p === UnsignedShort4444Type ) return 32819;
+			if ( p === UnsignedShort5551Type ) return 32820;
+			if ( p === UnsignedShort565Type ) return 33635;
+
+			if ( p === ByteType ) return 5120;
+			if ( p === ShortType ) return 5122;
+			if ( p === UnsignedShortType ) return 5123;
+			if ( p === IntType ) return 5124;
+			if ( p === UnsignedIntType ) return 5125;
+			if ( p === FloatType ) return 5126;
+
+			if ( p === HalfFloatType ) {
+
+				if ( capabilities.isWebGL2 ) return 5131;
+
+				extension = extensions.get( 'OES_texture_half_float' );
+
+				if ( extension !== null ) return extension.HALF_FLOAT_OES;
+
+			}
+
+			if ( p === AlphaFormat ) return 6406;
+			if ( p === RGBFormat ) return 6407;
+			if ( p === RGBAFormat ) return 6408;
+			if ( p === LuminanceFormat ) return 6409;
+			if ( p === LuminanceAlphaFormat ) return 6410;
+			if ( p === DepthFormat ) return 6402;
+			if ( p === DepthStencilFormat ) return 34041;
+			if ( p === RedFormat ) return 6403;
+
+			if ( p === AddEquation ) return 32774;
+			if ( p === SubtractEquation ) return 32778;
+			if ( p === ReverseSubtractEquation ) return 32779;
+
+			if ( p === ZeroFactor ) return 0;
+			if ( p === OneFactor ) return 1;
+			if ( p === SrcColorFactor ) return 768;
+			if ( p === OneMinusSrcColorFactor ) return 769;
+			if ( p === SrcAlphaFactor ) return 770;
+			if ( p === OneMinusSrcAlphaFactor ) return 771;
+			if ( p === DstAlphaFactor ) return 772;
+			if ( p === OneMinusDstAlphaFactor ) return 773;
+
+			if ( p === DstColorFactor ) return 774;
+			if ( p === OneMinusDstColorFactor ) return 775;
+			if ( p === SrcAlphaSaturateFactor ) return 776;
+
+			if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format ||
+				p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {
+
+				extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );
+
+				if ( extension !== null ) {
+
+					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
+					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
+					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
+					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
+
+				}
+
+			}
+
+			if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format ||
+				p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {
+
+				extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );
+
+				if ( extension !== null ) {
+
+					if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
+					if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
+					if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
+					if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
+
+				}
+
+			}
+
+			if ( p === RGB_ETC1_Format ) {
+
+				extension = extensions.get( 'WEBGL_compressed_texture_etc1' );
+
+				if ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL;
+
+			}
+
+			if ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format ||
+				p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format ||
+				p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format ||
+				p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format ||
+				p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format ) {
+
+				extension = extensions.get( 'WEBGL_compressed_texture_astc' );
+
+				if ( extension !== null ) {
+
+					return p;
+
+				}
+
+			}
+
+			if ( p === MinEquation || p === MaxEquation ) {
+
+				if ( capabilities.isWebGL2 ) {
+
+					if ( p === MinEquation ) return 32775;
+					if ( p === MaxEquation ) return 32776;
+
+				}
+
+				extension = extensions.get( 'EXT_blend_minmax' );
+
+				if ( extension !== null ) {
+
+					if ( p === MinEquation ) return extension.MIN_EXT;
+					if ( p === MaxEquation ) return extension.MAX_EXT;
+
+				}
+
+			}
+
+			if ( p === UnsignedInt248Type ) {
+
+				if ( capabilities.isWebGL2 ) return 34042;
+
+				extension = extensions.get( 'WEBGL_depth_texture' );
+
+				if ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL;
+
+			}
+
+			return 0;
+
+		}
+
+		return { convert: convert };
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function Group() {
+
+		Object3D.call( this );
+
+		this.type = 'Group';
+
+	}
+
+	Group.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Group,
+
+		isGroup: true
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author WestLangley / http://github.com/WestLangley
+	*/
+
+	function Camera() {
+
+		Object3D.call( this );
+
+		this.type = 'Camera';
+
+		this.matrixWorldInverse = new Matrix4();
+
+		this.projectionMatrix = new Matrix4();
+		this.projectionMatrixInverse = new Matrix4();
+
+	}
+
+	Camera.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Camera,
+
+		isCamera: true,
+
+		copy: function ( source, recursive ) {
+
+			Object3D.prototype.copy.call( this, source, recursive );
+
+			this.matrixWorldInverse.copy( source.matrixWorldInverse );
+
+			this.projectionMatrix.copy( source.projectionMatrix );
+			this.projectionMatrixInverse.copy( source.projectionMatrixInverse );
+
+			return this;
+
+		},
+
+		getWorldDirection: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Camera: .getWorldDirection() target is now required' );
+				target = new Vector3();
+
+			}
+
+			this.updateMatrixWorld( true );
+
+			var e = this.matrixWorld.elements;
+
+			return target.set( - e[ 8 ], - e[ 9 ], - e[ 10 ] ).normalize();
+
+		},
+
+		updateMatrixWorld: function ( force ) {
+
+			Object3D.prototype.updateMatrixWorld.call( this, force );
+
+			this.matrixWorldInverse.getInverse( this.matrixWorld );
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author greggman / http://games.greggman.com/
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 * @author tschw
+	 */
+
+	function PerspectiveCamera( fov, aspect, near, far ) {
+
+		Camera.call( this );
+
+		this.type = 'PerspectiveCamera';
+
+		this.fov = fov !== undefined ? fov : 50;
+		this.zoom = 1;
+
+		this.near = near !== undefined ? near : 0.1;
+		this.far = far !== undefined ? far : 2000;
+		this.focus = 10;
+
+		this.aspect = aspect !== undefined ? aspect : 1;
+		this.view = null;
+
+		this.filmGauge = 35;	// width of the film (default in millimeters)
+		this.filmOffset = 0;	// horizontal film offset (same unit as gauge)
+
+		this.updateProjectionMatrix();
+
+	}
+
+	PerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), {
+
+		constructor: PerspectiveCamera,
+
+		isPerspectiveCamera: true,
+
+		copy: function ( source, recursive ) {
+
+			Camera.prototype.copy.call( this, source, recursive );
+
+			this.fov = source.fov;
+			this.zoom = source.zoom;
+
+			this.near = source.near;
+			this.far = source.far;
+			this.focus = source.focus;
+
+			this.aspect = source.aspect;
+			this.view = source.view === null ? null : Object.assign( {}, source.view );
+
+			this.filmGauge = source.filmGauge;
+			this.filmOffset = source.filmOffset;
+
+			return this;
+
+		},
+
+		/**
+		 * Sets the FOV by focal length in respect to the current .filmGauge.
+		 *
+		 * The default film gauge is 35, so that the focal length can be specified for
+		 * a 35mm (full frame) camera.
+		 *
+		 * Values for focal length and film gauge must have the same unit.
+		 */
+		setFocalLength: function ( focalLength ) {
+
+			// see http://www.bobatkins.com/photography/technical/field_of_view.html
+			var vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;
+
+			this.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope );
+			this.updateProjectionMatrix();
+
+		},
+
+		/**
+		 * Calculates the focal length from the current .fov and .filmGauge.
+		 */
+		getFocalLength: function () {
+
+			var vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov );
+
+			return 0.5 * this.getFilmHeight() / vExtentSlope;
+
+		},
+
+		getEffectiveFOV: function () {
+
+			return _Math.RAD2DEG * 2 * Math.atan(
+				Math.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom );
+
+		},
+
+		getFilmWidth: function () {
+
+			// film not completely covered in portrait format (aspect < 1)
+			return this.filmGauge * Math.min( this.aspect, 1 );
+
+		},
+
+		getFilmHeight: function () {
+
+			// film not completely covered in landscape format (aspect > 1)
+			return this.filmGauge / Math.max( this.aspect, 1 );
+
+		},
+
+		/**
+		 * Sets an offset in a larger frustum. This is useful for multi-window or
+		 * multi-monitor/multi-machine setups.
+		 *
+		 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
+		 * the monitors are in grid like this
+		 *
+		 *   +---+---+---+
+		 *   | A | B | C |
+		 *   +---+---+---+
+		 *   | D | E | F |
+		 *   +---+---+---+
+		 *
+		 * then for each monitor you would call it like this
+		 *
+		 *   var w = 1920;
+		 *   var h = 1080;
+		 *   var fullWidth = w * 3;
+		 *   var fullHeight = h * 2;
+		 *
+		 *   --A--
+		 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
+		 *   --B--
+		 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
+		 *   --C--
+		 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
+		 *   --D--
+		 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
+		 *   --E--
+		 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
+		 *   --F--
+		 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
+		 *
+		 *   Note there is no reason monitors have to be the same size or in a grid.
+		 */
+		setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {
+
+			this.aspect = fullWidth / fullHeight;
+
+			if ( this.view === null ) {
+
+				this.view = {
+					enabled: true,
+					fullWidth: 1,
+					fullHeight: 1,
+					offsetX: 0,
+					offsetY: 0,
+					width: 1,
+					height: 1
+				};
+
+			}
+
+			this.view.enabled = true;
+			this.view.fullWidth = fullWidth;
+			this.view.fullHeight = fullHeight;
+			this.view.offsetX = x;
+			this.view.offsetY = y;
+			this.view.width = width;
+			this.view.height = height;
+
+			this.updateProjectionMatrix();
+
+		},
+
+		clearViewOffset: function () {
+
+			if ( this.view !== null ) {
+
+				this.view.enabled = false;
+
+			}
+
+			this.updateProjectionMatrix();
+
+		},
+
+		updateProjectionMatrix: function () {
+
+			var near = this.near,
+				top = near * Math.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom,
+				height = 2 * top,
+				width = this.aspect * height,
+				left = - 0.5 * width,
+				view = this.view;
+
+			if ( this.view !== null && this.view.enabled ) {
+
+				var fullWidth = view.fullWidth,
+					fullHeight = view.fullHeight;
+
+				left += view.offsetX * width / fullWidth;
+				top -= view.offsetY * height / fullHeight;
+				width *= view.width / fullWidth;
+				height *= view.height / fullHeight;
+
+			}
+
+			var skew = this.filmOffset;
+			if ( skew !== 0 ) left += near * skew / this.getFilmWidth();
+
+			this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );
+
+			this.projectionMatrixInverse.getInverse( this.projectionMatrix );
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var data = Object3D.prototype.toJSON.call( this, meta );
+
+			data.object.fov = this.fov;
+			data.object.zoom = this.zoom;
+
+			data.object.near = this.near;
+			data.object.far = this.far;
+			data.object.focus = this.focus;
+
+			data.object.aspect = this.aspect;
+
+			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );
+
+			data.object.filmGauge = this.filmGauge;
+			data.object.filmOffset = this.filmOffset;
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function ArrayCamera( array ) {
+
+		PerspectiveCamera.call( this );
+
+		this.cameras = array || [];
+
+	}
+
+	ArrayCamera.prototype = Object.assign( Object.create( PerspectiveCamera.prototype ), {
+
+		constructor: ArrayCamera,
+
+		isArrayCamera: true
+
+	} );
+
+	/**
+	 * @author jsantell / https://www.jsantell.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	var cameraLPos = new Vector3();
+	var cameraRPos = new Vector3();
+
+	/**
+	 * Assumes 2 cameras that are parallel and share an X-axis, and that
+	 * the cameras' projection and world matrices have already been set.
+	 * And that near and far planes are identical for both cameras.
+	 * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765
+	 */
+	function setProjectionFromUnion( camera, cameraL, cameraR ) {
+
+		cameraLPos.setFromMatrixPosition( cameraL.matrixWorld );
+		cameraRPos.setFromMatrixPosition( cameraR.matrixWorld );
+
+		var ipd = cameraLPos.distanceTo( cameraRPos );
+
+		var projL = cameraL.projectionMatrix.elements;
+		var projR = cameraR.projectionMatrix.elements;
+
+		// VR systems will have identical far and near planes, and
+		// most likely identical top and bottom frustum extents.
+		// Use the left camera for these values.
+		var near = projL[ 14 ] / ( projL[ 10 ] - 1 );
+		var far = projL[ 14 ] / ( projL[ 10 ] + 1 );
+		var topFov = ( projL[ 9 ] + 1 ) / projL[ 5 ];
+		var bottomFov = ( projL[ 9 ] - 1 ) / projL[ 5 ];
+
+		var leftFov = ( projL[ 8 ] - 1 ) / projL[ 0 ];
+		var rightFov = ( projR[ 8 ] + 1 ) / projR[ 0 ];
+		var left = near * leftFov;
+		var right = near * rightFov;
+
+		// Calculate the new camera's position offset from the
+		// left camera. xOffset should be roughly half `ipd`.
+		var zOffset = ipd / ( - leftFov + rightFov );
+		var xOffset = zOffset * - leftFov;
+
+		// TODO: Better way to apply this offset?
+		cameraL.matrixWorld.decompose( camera.position, camera.quaternion, camera.scale );
+		camera.translateX( xOffset );
+		camera.translateZ( zOffset );
+		camera.matrixWorld.compose( camera.position, camera.quaternion, camera.scale );
+		camera.matrixWorldInverse.getInverse( camera.matrixWorld );
+
+		// Find the union of the frustum values of the cameras and scale
+		// the values so that the near plane's position does not change in world space,
+		// although must now be relative to the new union camera.
+		var near2 = near + zOffset;
+		var far2 = far + zOffset;
+		var left2 = left - xOffset;
+		var right2 = right + ( ipd - xOffset );
+		var top2 = topFov * far / far2 * near2;
+		var bottom2 = bottomFov * far / far2 * near2;
+
+		camera.projectionMatrix.makePerspective( left2, right2, top2, bottom2, near2, far2 );
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebVRManager( renderer ) {
+
+		var renderWidth, renderHeight;
+		var scope = this;
+
+		var device = null;
+		var frameData = null;
+
+		var poseTarget = null;
+
+		var controllers = [];
+		var standingMatrix = new Matrix4();
+		var standingMatrixInverse = new Matrix4();
+
+		var framebufferScaleFactor = 1.0;
+
+		var referenceSpaceType = 'local-floor';
+
+		if ( typeof window !== 'undefined' && 'VRFrameData' in window ) {
+
+			frameData = new window.VRFrameData();
+			window.addEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );
+
+		}
+
+		var matrixWorldInverse = new Matrix4();
+		var tempQuaternion = new Quaternion();
+		var tempPosition = new Vector3();
+
+		var cameraL = new PerspectiveCamera();
+		cameraL.viewport = new Vector4();
+		cameraL.layers.enable( 1 );
+
+		var cameraR = new PerspectiveCamera();
+		cameraR.viewport = new Vector4();
+		cameraR.layers.enable( 2 );
+
+		var cameraVR = new ArrayCamera( [ cameraL, cameraR ] );
+		cameraVR.layers.enable( 1 );
+		cameraVR.layers.enable( 2 );
+
+		//
+
+		function isPresenting() {
+
+			return device !== null && device.isPresenting === true;
+
+		}
+
+		var currentSize = new Vector2(), currentPixelRatio;
+
+		function onVRDisplayPresentChange() {
+
+			if ( isPresenting() ) {
+
+				var eyeParameters = device.getEyeParameters( 'left' );
+				renderWidth = 2 * eyeParameters.renderWidth * framebufferScaleFactor;
+				renderHeight = eyeParameters.renderHeight * framebufferScaleFactor;
+
+				currentPixelRatio = renderer.getPixelRatio();
+				renderer.getSize( currentSize );
+
+				renderer.setDrawingBufferSize( renderWidth, renderHeight, 1 );
+
+				cameraL.viewport.set( 0, 0, renderWidth / 2, renderHeight );
+				cameraR.viewport.set( renderWidth / 2, 0, renderWidth / 2, renderHeight );
+
+				animation.start();
+
+			} else {
+
+				if ( scope.enabled ) {
+
+					renderer.setDrawingBufferSize( currentSize.width, currentSize.height, currentPixelRatio );
+
+				}
+
+				animation.stop();
+
+			}
+
+		}
+
+		//
+
+		var triggers = [];
+
+		function findGamepad( id ) {
+
+			var gamepads = navigator.getGamepads && navigator.getGamepads();
+
+			for ( var i = 0, j = 0, l = gamepads.length; i < l; i ++ ) {
+
+				var gamepad = gamepads[ i ];
+
+				if ( gamepad && ( gamepad.id === 'Daydream Controller' ||
+					gamepad.id === 'Gear VR Controller' || gamepad.id === 'Oculus Go Controller' ||
+					gamepad.id === 'OpenVR Gamepad' || gamepad.id.startsWith( 'Oculus Touch' ) ||
+					gamepad.id.startsWith( 'Spatial Controller' ) ) ) {
+
+					if ( j === id ) return gamepad;
+
+					j ++;
+
+				}
+
+			}
+
+		}
+
+		function updateControllers() {
+
+			for ( var i = 0; i < controllers.length; i ++ ) {
+
+				var controller = controllers[ i ];
+
+				var gamepad = findGamepad( i );
+
+				if ( gamepad !== undefined && gamepad.pose !== undefined ) {
+
+					if ( gamepad.pose === null ) return;
+
+					// Pose
+
+					var pose = gamepad.pose;
+
+					if ( pose.hasPosition === false ) controller.position.set( 0.2, - 0.6, - 0.05 );
+
+					if ( pose.position !== null ) controller.position.fromArray( pose.position );
+					if ( pose.orientation !== null ) controller.quaternion.fromArray( pose.orientation );
+					controller.matrix.compose( controller.position, controller.quaternion, controller.scale );
+					controller.matrix.premultiply( standingMatrix );
+					controller.matrix.decompose( controller.position, controller.quaternion, controller.scale );
+					controller.matrixWorldNeedsUpdate = true;
+					controller.visible = true;
+
+					// Trigger
+
+					var buttonId = gamepad.id === 'Daydream Controller' ? 0 : 1;
+
+					if ( triggers[ i ] === undefined ) triggers[ i ] = false;
+
+					if ( triggers[ i ] !== gamepad.buttons[ buttonId ].pressed ) {
+
+						triggers[ i ] = gamepad.buttons[ buttonId ].pressed;
+
+						if ( triggers[ i ] === true ) {
+
+							controller.dispatchEvent( { type: 'selectstart' } );
+
+						} else {
+
+							controller.dispatchEvent( { type: 'selectend' } );
+							controller.dispatchEvent( { type: 'select' } );
+
+						}
+
+					}
+
+				} else {
+
+					controller.visible = false;
+
+				}
+
+			}
+
+		}
+
+		function updateViewportFromBounds( viewport, bounds ) {
+
+			if ( bounds !== null && bounds.length === 4 ) {
+
+				viewport.set( bounds[ 0 ] * renderWidth, bounds[ 1 ] * renderHeight, bounds[ 2 ] * renderWidth, bounds[ 3 ] * renderHeight );
+
+			}
+
+		}
+
+		//
+
+		this.enabled = false;
+
+		this.getController = function ( id ) {
+
+			var controller = controllers[ id ];
+
+			if ( controller === undefined ) {
+
+				controller = new Group();
+				controller.matrixAutoUpdate = false;
+				controller.visible = false;
+
+				controllers[ id ] = controller;
+
+			}
+
+			return controller;
+
+		};
+
+		this.getDevice = function () {
+
+			return device;
+
+		};
+
+		this.setDevice = function ( value ) {
+
+			if ( value !== undefined ) device = value;
+
+			animation.setContext( value );
+
+		};
+
+		this.setFramebufferScaleFactor = function ( value ) {
+
+			framebufferScaleFactor = value;
+
+		};
+
+		this.setReferenceSpaceType = function ( value ) {
+
+			referenceSpaceType = value;
+
+		};
+
+		this.setPoseTarget = function ( object ) {
+
+			if ( object !== undefined ) poseTarget = object;
+
+		};
+
+		this.getCamera = function ( camera ) {
+
+			var userHeight = referenceSpaceType === 'local-floor' ? 1.6 : 0;
+
+			if ( isPresenting() === false ) {
+
+				camera.position.set( 0, userHeight, 0 );
+				camera.rotation.set( 0, 0, 0 );
+
+				return camera;
+
+			}
+
+			device.depthNear = camera.near;
+			device.depthFar = camera.far;
+
+			device.getFrameData( frameData );
+
+			//
+
+			if ( referenceSpaceType === 'local-floor' ) {
+
+				var stageParameters = device.stageParameters;
+
+				if ( stageParameters ) {
+
+					standingMatrix.fromArray( stageParameters.sittingToStandingTransform );
+
+				} else {
+
+					standingMatrix.makeTranslation( 0, userHeight, 0 );
+
+				}
+
+			}
+
+
+			var pose = frameData.pose;
+			var poseObject = poseTarget !== null ? poseTarget : camera;
+
+			// We want to manipulate poseObject by its position and quaternion components since users may rely on them.
+			poseObject.matrix.copy( standingMatrix );
+			poseObject.matrix.decompose( poseObject.position, poseObject.quaternion, poseObject.scale );
+
+			if ( pose.orientation !== null ) {
+
+				tempQuaternion.fromArray( pose.orientation );
+				poseObject.quaternion.multiply( tempQuaternion );
+
+			}
+
+			if ( pose.position !== null ) {
+
+				tempQuaternion.setFromRotationMatrix( standingMatrix );
+				tempPosition.fromArray( pose.position );
+				tempPosition.applyQuaternion( tempQuaternion );
+				poseObject.position.add( tempPosition );
+
+			}
+
+			poseObject.updateMatrixWorld();
+
+			//
+
+			cameraL.near = camera.near;
+			cameraR.near = camera.near;
+
+			cameraL.far = camera.far;
+			cameraR.far = camera.far;
+
+			cameraL.matrixWorldInverse.fromArray( frameData.leftViewMatrix );
+			cameraR.matrixWorldInverse.fromArray( frameData.rightViewMatrix );
+
+			// TODO (mrdoob) Double check this code
+
+			standingMatrixInverse.getInverse( standingMatrix );
+
+			if ( referenceSpaceType === 'local-floor' ) {
+
+				cameraL.matrixWorldInverse.multiply( standingMatrixInverse );
+				cameraR.matrixWorldInverse.multiply( standingMatrixInverse );
+
+			}
+
+			var parent = poseObject.parent;
+
+			if ( parent !== null ) {
+
+				matrixWorldInverse.getInverse( parent.matrixWorld );
+
+				cameraL.matrixWorldInverse.multiply( matrixWorldInverse );
+				cameraR.matrixWorldInverse.multiply( matrixWorldInverse );
+
+			}
+
+			// envMap and Mirror needs camera.matrixWorld
+
+			cameraL.matrixWorld.getInverse( cameraL.matrixWorldInverse );
+			cameraR.matrixWorld.getInverse( cameraR.matrixWorldInverse );
+
+			cameraL.projectionMatrix.fromArray( frameData.leftProjectionMatrix );
+			cameraR.projectionMatrix.fromArray( frameData.rightProjectionMatrix );
+
+			setProjectionFromUnion( cameraVR, cameraL, cameraR );
+
+			//
+
+			var layers = device.getLayers();
+
+			if ( layers.length ) {
+
+				var layer = layers[ 0 ];
+
+				updateViewportFromBounds( cameraL.viewport, layer.leftBounds );
+				updateViewportFromBounds( cameraR.viewport, layer.rightBounds );
+
+			}
+
+			updateControllers();
+
+			return cameraVR;
+
+		};
+
+		this.getStandingMatrix = function () {
+
+			return standingMatrix;
+
+		};
+
+		this.isPresenting = isPresenting;
+
+		// Animation Loop
+
+		var animation = new WebGLAnimation();
+
+		this.setAnimationLoop = function ( callback ) {
+
+			animation.setAnimationLoop( callback );
+
+			if ( isPresenting() ) animation.start();
+
+		};
+
+		this.submitFrame = function () {
+
+			if ( isPresenting() ) device.submitFrame();
+
+		};
+
+		this.dispose = function () {
+
+			if ( typeof window !== 'undefined' ) {
+
+				window.removeEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange );
+
+			}
+
+		};
+
+		// DEPRECATED
+
+		this.setFrameOfReferenceType = function () {
+
+			console.warn( 'THREE.WebVRManager: setFrameOfReferenceType() has been deprecated.' );
+
+		};
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function WebXRManager( renderer ) {
+
+		var gl = renderer.context;
+
+		var session = null;
+
+		var referenceSpace = null;
+		var referenceSpaceType = 'local-floor';
+
+		var pose = null;
+
+		var controllers = [];
+		var inputSources = [];
+
+		function isPresenting() {
+
+			return session !== null && referenceSpace !== null;
+
+		}
+
+		//
+
+		var cameraL = new PerspectiveCamera();
+		cameraL.layers.enable( 1 );
+		cameraL.viewport = new Vector4();
+
+		var cameraR = new PerspectiveCamera();
+		cameraR.layers.enable( 2 );
+		cameraR.viewport = new Vector4();
+
+		var cameraVR = new ArrayCamera( [ cameraL, cameraR ] );
+		cameraVR.layers.enable( 1 );
+		cameraVR.layers.enable( 2 );
+
+		//
+
+		this.enabled = false;
+
+		this.getController = function ( id ) {
+
+			var controller = controllers[ id ];
+
+			if ( controller === undefined ) {
+
+				controller = new Group();
+				controller.matrixAutoUpdate = false;
+				controller.visible = false;
+
+				controllers[ id ] = controller;
+
+			}
+
+			return controller;
+
+		};
+
+		//
+
+		function onSessionEvent( event ) {
+
+			for ( var i = 0; i < controllers.length; i ++ ) {
+
+				if ( inputSources[ i ] === event.inputSource ) {
+
+					controllers[ i ].dispatchEvent( { type: event.type } );
+
+				}
+
+			}
+
+		}
+
+		function onSessionEnd() {
+
+			renderer.setFramebuffer( null );
+			renderer.setRenderTarget( renderer.getRenderTarget() ); // Hack #15830
+			animation.stop();
+
+		}
+
+		function onRequestReferenceSpace( value ) {
+
+			referenceSpace = value;
+
+			animation.setContext( session );
+			animation.start();
+
+		}
+
+		this.setFramebufferScaleFactor = function ( value ) {
+
+		};
+
+		this.setReferenceSpaceType = function ( value ) {
+
+			referenceSpaceType = value;
+
+		};
+
+		this.getSession = function () {
+
+			return session;
+
+		};
+
+		this.setSession = function ( value ) {
+
+			session = value;
+
+			if ( session !== null ) {
+
+				session.addEventListener( 'select', onSessionEvent );
+				session.addEventListener( 'selectstart', onSessionEvent );
+				session.addEventListener( 'selectend', onSessionEvent );
+				session.addEventListener( 'end', onSessionEnd );
+
+				session.updateRenderState( { baseLayer: new XRWebGLLayer( session, gl ) } );
+
+				session.requestReferenceSpace( referenceSpaceType ).then( onRequestReferenceSpace );
+
+				//
+
+				inputSources = session.inputSources;
+
+				session.addEventListener( 'inputsourceschange', function () {
+
+					inputSources = session.inputSources;
+					console.log( inputSources );
+
+					for ( var i = 0; i < controllers.length; i ++ ) {
+
+						var controller = controllers[ i ];
+						controller.userData.inputSource = inputSources[ i ];
+
+					}
+
+				} );
+
+			}
+
+		};
+
+		function updateCamera( camera, parent ) {
+
+			if ( parent === null ) {
+
+				camera.matrixWorld.copy( camera.matrix );
+
+			} else {
+
+				camera.matrixWorld.multiplyMatrices( parent.matrixWorld, camera.matrix );
+
+			}
+
+			camera.matrixWorldInverse.getInverse( camera.matrixWorld );
+
+		}
+
+		this.getCamera = function ( camera ) {
+
+			if ( isPresenting() ) {
+
+				var parent = camera.parent;
+				var cameras = cameraVR.cameras;
+
+				updateCamera( cameraVR, parent );
+
+				for ( var i = 0; i < cameras.length; i ++ ) {
+
+					updateCamera( cameras[ i ], parent );
+
+				}
+
+				// update camera and its children
+
+				camera.matrixWorld.copy( cameraVR.matrixWorld );
+
+				var children = camera.children;
+
+				for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+					children[ i ].updateMatrixWorld( true );
+
+				}
+
+				setProjectionFromUnion( cameraVR, cameraL, cameraR );
+
+				return cameraVR;
+
+			}
+
+			return camera;
+
+		};
+
+		this.isPresenting = isPresenting;
+
+		// Animation Loop
+
+		var onAnimationFrameCallback = null;
+
+		function onAnimationFrame( time, frame ) {
+
+			pose = frame.getViewerPose( referenceSpace );
+
+			if ( pose !== null ) {
+
+				var views = pose.views;
+				var baseLayer = session.renderState.baseLayer;
+
+				renderer.setFramebuffer( baseLayer.framebuffer );
+
+				for ( var i = 0; i < views.length; i ++ ) {
+
+					var view = views[ i ];
+					var viewport = baseLayer.getViewport( view );
+					var viewMatrix = view.transform.inverse.matrix;
+
+					var camera = cameraVR.cameras[ i ];
+					camera.matrix.fromArray( viewMatrix ).getInverse( camera.matrix );
+					camera.projectionMatrix.fromArray( view.projectionMatrix );
+					camera.viewport.set( viewport.x, viewport.y, viewport.width, viewport.height );
+
+					if ( i === 0 ) {
+
+						cameraVR.matrix.copy( camera.matrix );
+
+					}
+
+				}
+
+			}
+
+			//
+
+			for ( var i = 0; i < controllers.length; i ++ ) {
+
+				var controller = controllers[ i ];
+
+				var inputSource = inputSources[ i ];
+
+				if ( inputSource ) {
+
+					var inputPose = frame.getPose( inputSource.targetRaySpace, referenceSpace );
+
+					if ( inputPose !== null ) {
+
+						controller.matrix.fromArray( inputPose.transform.matrix );
+						controller.matrix.decompose( controller.position, controller.rotation, controller.scale );
+						controller.visible = true;
+
+						continue;
+
+					}
+
+				}
+
+				controller.visible = false;
+
+			}
+
+			if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );
+
+		}
+
+		var animation = new WebGLAnimation();
+		animation.setAnimationLoop( onAnimationFrame );
+
+		this.setAnimationLoop = function ( callback ) {
+
+			onAnimationFrameCallback = callback;
+
+		};
+
+		this.dispose = function () {};
+
+		// DEPRECATED
+
+		this.getStandingMatrix = function () {
+
+			console.warn( 'THREE.WebXRManager: getStandingMatrix() is no longer needed.' );
+			return new Matrix4();
+
+		};
+
+		this.getDevice = function () {
+
+			console.warn( 'THREE.WebXRManager: getDevice() has been deprecated.' );
+
+		};
+
+		this.setDevice = function () {
+
+			console.warn( 'THREE.WebXRManager: setDevice() has been deprecated.' );
+
+		};
+
+		this.setFrameOfReferenceType = function () {
+
+			console.warn( 'THREE.WebXRManager: setFrameOfReferenceType() has been deprecated.' );
+
+		};
+
+		this.submitFrame = function () {};
+
+	}
+
+	/**
+	 * @author supereggbert / http://www.paulbrunt.co.uk/
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author szimek / https://github.com/szimek/
+	 * @author tschw
+	 */
+
+	function WebGLRenderer( parameters ) {
+
+		console.log( 'THREE.WebGLRenderer', REVISION );
+
+		parameters = parameters || {};
+
+		var _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ),
+			_context = parameters.context !== undefined ? parameters.context : null,
+
+			_alpha = parameters.alpha !== undefined ? parameters.alpha : false,
+			_depth = parameters.depth !== undefined ? parameters.depth : true,
+			_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
+			_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
+			_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
+			_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,
+			_powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default',
+			_failIfMajorPerformanceCaveat = parameters.failIfMajorPerformanceCaveat !== undefined ? parameters.failIfMajorPerformanceCaveat : false;
+
+		var currentRenderList = null;
+		var currentRenderState = null;
+
+		// public properties
+
+		this.domElement = _canvas;
+		this.context = null;
+
+		// Debug configuration container
+		this.debug = {
+
+			/**
+			 * Enables error checking and reporting when shader programs are being compiled
+			 * @type {boolean}
+			 */
+			checkShaderErrors: true
+		};
+
+		// clearing
+
+		this.autoClear = true;
+		this.autoClearColor = true;
+		this.autoClearDepth = true;
+		this.autoClearStencil = true;
+
+		// scene graph
+
+		this.sortObjects = true;
+
+		// user-defined clipping
+
+		this.clippingPlanes = [];
+		this.localClippingEnabled = false;
+
+		// physically based shading
+
+		this.gammaFactor = 2.0;	// for backwards compatibility
+		this.gammaInput = false;
+		this.gammaOutput = false;
+
+		// physical lights
+
+		this.physicallyCorrectLights = false;
+
+		// tone mapping
+
+		this.toneMapping = LinearToneMapping;
+		this.toneMappingExposure = 1.0;
+		this.toneMappingWhitePoint = 1.0;
+
+		// morphs
+
+		this.maxMorphTargets = 8;
+		this.maxMorphNormals = 4;
+
+		// internal properties
+
+		var _this = this,
+
+			_isContextLost = false,
+
+			// internal state cache
+
+			_framebuffer = null,
+
+			_currentActiveCubeFace = 0,
+			_currentActiveMipmapLevel = 0,
+			_currentRenderTarget = null,
+			_currentFramebuffer = null,
+			_currentMaterialId = - 1,
+
+			// geometry and program caching
+
+			_currentGeometryProgram = {
+				geometry: null,
+				program: null,
+				wireframe: false
+			},
+
+			_currentCamera = null,
+			_currentArrayCamera = null,
+
+			_currentViewport = new Vector4(),
+			_currentScissor = new Vector4(),
+			_currentScissorTest = null,
+
+			//
+
+			_width = _canvas.width,
+			_height = _canvas.height,
+
+			_pixelRatio = 1,
+
+			_viewport = new Vector4( 0, 0, _width, _height ),
+			_scissor = new Vector4( 0, 0, _width, _height ),
+			_scissorTest = false,
+
+			// frustum
+
+			_frustum = new Frustum(),
+
+			// clipping
+
+			_clipping = new WebGLClipping(),
+			_clippingEnabled = false,
+			_localClippingEnabled = false,
+
+			// camera matrices cache
+
+			_projScreenMatrix = new Matrix4(),
+
+			_vector3 = new Vector3();
+
+		function getTargetPixelRatio() {
+
+			return _currentRenderTarget === null ? _pixelRatio : 1;
+
+		}
+
+		// initialize
+
+		var _gl;
+
+		try {
+
+			var contextAttributes = {
+				alpha: _alpha,
+				depth: _depth,
+				stencil: _stencil,
+				antialias: _antialias,
+				premultipliedAlpha: _premultipliedAlpha,
+				preserveDrawingBuffer: _preserveDrawingBuffer,
+				powerPreference: _powerPreference,
+				failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat,
+				xrCompatible: true
+			};
+
+			// event listeners must be registered before WebGL context is created, see #12753
+
+			_canvas.addEventListener( 'webglcontextlost', onContextLost, false );
+			_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );
+
+			_gl = _context || _canvas.getContext( 'webgl', contextAttributes ) || _canvas.getContext( 'experimental-webgl', contextAttributes );
+
+			if ( _gl === null ) {
+
+				if ( _canvas.getContext( 'webgl' ) !== null ) {
+
+					throw new Error( 'Error creating WebGL context with your selected attributes.' );
+
+				} else {
+
+					throw new Error( 'Error creating WebGL context.' );
+
+				}
+
+			}
+
+			// Some experimental-webgl implementations do not have getShaderPrecisionFormat
+
+			if ( _gl.getShaderPrecisionFormat === undefined ) {
+
+				_gl.getShaderPrecisionFormat = function () {
+
+					return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };
+
+				};
+
+			}
+
+		} catch ( error ) {
+
+			console.error( 'THREE.WebGLRenderer: ' + error.message );
+			throw error;
+
+		}
+
+		var extensions, capabilities, state, info;
+		var properties, textures, attributes, geometries, objects;
+		var programCache, renderLists, renderStates;
+
+		var background, morphtargets, bufferRenderer, indexedBufferRenderer;
+
+		var utils;
+
+		function initGLContext() {
+
+			extensions = new WebGLExtensions( _gl );
+
+			capabilities = new WebGLCapabilities( _gl, extensions, parameters );
+
+			if ( ! capabilities.isWebGL2 ) {
+
+				extensions.get( 'WEBGL_depth_texture' );
+				extensions.get( 'OES_texture_float' );
+				extensions.get( 'OES_texture_half_float' );
+				extensions.get( 'OES_texture_half_float_linear' );
+				extensions.get( 'OES_standard_derivatives' );
+				extensions.get( 'OES_element_index_uint' );
+				extensions.get( 'ANGLE_instanced_arrays' );
+
+			}
+
+			extensions.get( 'OES_texture_float_linear' );
+
+			utils = new WebGLUtils( _gl, extensions, capabilities );
+
+			state = new WebGLState( _gl, extensions, utils, capabilities );
+			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
+			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );
+
+			info = new WebGLInfo( _gl );
+			properties = new WebGLProperties();
+			textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info );
+			attributes = new WebGLAttributes( _gl );
+			geometries = new WebGLGeometries( _gl, attributes, info );
+			objects = new WebGLObjects( geometries, info );
+			morphtargets = new WebGLMorphtargets( _gl );
+			programCache = new WebGLPrograms( _this, extensions, capabilities, textures );
+			renderLists = new WebGLRenderLists();
+			renderStates = new WebGLRenderStates();
+
+			background = new WebGLBackground( _this, state, objects, _premultipliedAlpha );
+
+			bufferRenderer = new WebGLBufferRenderer( _gl, extensions, info, capabilities );
+			indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info, capabilities );
+
+			info.programs = programCache.programs;
+
+			_this.context = _gl;
+			_this.capabilities = capabilities;
+			_this.extensions = extensions;
+			_this.properties = properties;
+			_this.renderLists = renderLists;
+			_this.state = state;
+			_this.info = info;
+
+		}
+
+		initGLContext();
+
+		// vr
+
+		var vr = ( typeof navigator !== 'undefined' && 'xr' in navigator && 'supportsSession' in navigator.xr ) ? new WebXRManager( _this ) : new WebVRManager( _this );
+
+		this.vr = vr;
+
+		// shadow map
+
+		var shadowMap = new WebGLShadowMap( _this, objects, capabilities.maxTextureSize );
+
+		this.shadowMap = shadowMap;
+
+		// API
+
+		this.getContext = function () {
+
+			return _gl;
+
+		};
+
+		this.getContextAttributes = function () {
+
+			return _gl.getContextAttributes();
+
+		};
+
+		this.forceContextLoss = function () {
+
+			var extension = extensions.get( 'WEBGL_lose_context' );
+			if ( extension ) extension.loseContext();
+
+		};
+
+		this.forceContextRestore = function () {
+
+			var extension = extensions.get( 'WEBGL_lose_context' );
+			if ( extension ) extension.restoreContext();
+
+		};
+
+		this.getPixelRatio = function () {
+
+			return _pixelRatio;
+
+		};
+
+		this.setPixelRatio = function ( value ) {
+
+			if ( value === undefined ) return;
+
+			_pixelRatio = value;
+
+			this.setSize( _width, _height, false );
+
+		};
+
+		this.getSize = function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'WebGLRenderer: .getsize() now requires a Vector2 as an argument' );
+
+				target = new Vector2();
+
+			}
+
+			return target.set( _width, _height );
+
+		};
+
+		this.setSize = function ( width, height, updateStyle ) {
+
+			if ( vr.isPresenting() ) {
+
+				console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' );
+				return;
+
+			}
+
+			_width = width;
+			_height = height;
+
+			_canvas.width = width * _pixelRatio;
+			_canvas.height = height * _pixelRatio;
+
+			if ( updateStyle !== false ) {
+
+				_canvas.style.width = width + 'px';
+				_canvas.style.height = height + 'px';
+
+			}
+
+			this.setViewport( 0, 0, width, height );
+
+		};
+
+		this.getDrawingBufferSize = function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'WebGLRenderer: .getdrawingBufferSize() now requires a Vector2 as an argument' );
+
+				target = new Vector2();
+
+			}
+
+			return target.set( _width * _pixelRatio, _height * _pixelRatio );
+
+		};
+
+		this.setDrawingBufferSize = function ( width, height, pixelRatio ) {
+
+			_width = width;
+			_height = height;
+
+			_pixelRatio = pixelRatio;
+
+			_canvas.width = width * pixelRatio;
+			_canvas.height = height * pixelRatio;
+
+			this.setViewport( 0, 0, width, height );
+
+		};
+
+		this.getCurrentViewport = function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'WebGLRenderer: .getCurrentViewport() now requires a Vector4 as an argument' );
+
+				target = new Vector4();
+
+			}
+
+			return target.copy( _currentViewport );
+
+		};
+
+		this.getViewport = function ( target ) {
+
+			return target.copy( _viewport );
+
+		};
+
+		this.setViewport = function ( x, y, width, height ) {
+
+			if ( x.isVector4 ) {
+
+				_viewport.set( x.x, x.y, x.z, x.w );
+
+			} else {
+
+				_viewport.set( x, y, width, height );
+
+			}
+
+			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );
+
+		};
+
+		this.getScissor = function ( target ) {
+
+			return target.copy( _scissor );
+
+		};
+
+		this.setScissor = function ( x, y, width, height ) {
+
+			if ( x.isVector4 ) {
+
+				_scissor.set( x.x, x.y, x.z, x.w );
+
+			} else {
+
+				_scissor.set( x, y, width, height );
+
+			}
+
+			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
+
+		};
+
+		this.getScissorTest = function () {
+
+			return _scissorTest;
+
+		};
+
+		this.setScissorTest = function ( boolean ) {
+
+			state.setScissorTest( _scissorTest = boolean );
+
+		};
+
+		// Clearing
+
+		this.getClearColor = function () {
+
+			return background.getClearColor();
+
+		};
+
+		this.setClearColor = function () {
+
+			background.setClearColor.apply( background, arguments );
+
+		};
+
+		this.getClearAlpha = function () {
+
+			return background.getClearAlpha();
+
+		};
+
+		this.setClearAlpha = function () {
+
+			background.setClearAlpha.apply( background, arguments );
+
+		};
+
+		this.clear = function ( color, depth, stencil ) {
+
+			var bits = 0;
+
+			if ( color === undefined || color ) bits |= 16384;
+			if ( depth === undefined || depth ) bits |= 256;
+			if ( stencil === undefined || stencil ) bits |= 1024;
+
+			_gl.clear( bits );
+
+		};
+
+		this.clearColor = function () {
+
+			this.clear( true, false, false );
+
+		};
+
+		this.clearDepth = function () {
+
+			this.clear( false, true, false );
+
+		};
+
+		this.clearStencil = function () {
+
+			this.clear( false, false, true );
+
+		};
+
+		//
+
+		this.dispose = function () {
+
+			_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );
+			_canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );
+
+			renderLists.dispose();
+			renderStates.dispose();
+			properties.dispose();
+			objects.dispose();
+
+			vr.dispose();
+
+			animation.stop();
+
+		};
+
+		// Events
+
+		function onContextLost( event ) {
+
+			event.preventDefault();
+
+			console.log( 'THREE.WebGLRenderer: Context Lost.' );
+
+			_isContextLost = true;
+
+		}
+
+		function onContextRestore( /* event */ ) {
+
+			console.log( 'THREE.WebGLRenderer: Context Restored.' );
+
+			_isContextLost = false;
+
+			initGLContext();
+
+		}
+
+		function onMaterialDispose( event ) {
+
+			var material = event.target;
+
+			material.removeEventListener( 'dispose', onMaterialDispose );
+
+			deallocateMaterial( material );
+
+		}
+
+		// Buffer deallocation
+
+		function deallocateMaterial( material ) {
+
+			releaseMaterialProgramReference( material );
+
+			properties.remove( material );
+
+		}
+
+
+		function releaseMaterialProgramReference( material ) {
+
+			var programInfo = properties.get( material ).program;
+
+			material.program = undefined;
+
+			if ( programInfo !== undefined ) {
+
+				programCache.releaseProgram( programInfo );
+
+			}
+
+		}
+
+		// Buffer rendering
+
+		function renderObjectImmediate( object, program ) {
+
+			object.render( function ( object ) {
+
+				_this.renderBufferImmediate( object, program );
+
+			} );
+
+		}
+
+		this.renderBufferImmediate = function ( object, program ) {
+
+			state.initAttributes();
+
+			var buffers = properties.get( object );
+
+			if ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();
+			if ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();
+			if ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();
+			if ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();
+
+			var programAttributes = program.getAttributes();
+
+			if ( object.hasPositions ) {
+
+				_gl.bindBuffer( 34962, buffers.position );
+				_gl.bufferData( 34962, object.positionArray, 35048 );
+
+				state.enableAttribute( programAttributes.position );
+				_gl.vertexAttribPointer( programAttributes.position, 3, 5126, false, 0, 0 );
+
+			}
+
+			if ( object.hasNormals ) {
+
+				_gl.bindBuffer( 34962, buffers.normal );
+				_gl.bufferData( 34962, object.normalArray, 35048 );
+
+				state.enableAttribute( programAttributes.normal );
+				_gl.vertexAttribPointer( programAttributes.normal, 3, 5126, false, 0, 0 );
+
+			}
+
+			if ( object.hasUvs ) {
+
+				_gl.bindBuffer( 34962, buffers.uv );
+				_gl.bufferData( 34962, object.uvArray, 35048 );
+
+				state.enableAttribute( programAttributes.uv );
+				_gl.vertexAttribPointer( programAttributes.uv, 2, 5126, false, 0, 0 );
+
+			}
+
+			if ( object.hasColors ) {
+
+				_gl.bindBuffer( 34962, buffers.color );
+				_gl.bufferData( 34962, object.colorArray, 35048 );
+
+				state.enableAttribute( programAttributes.color );
+				_gl.vertexAttribPointer( programAttributes.color, 3, 5126, false, 0, 0 );
+
+			}
+
+			state.disableUnusedAttributes();
+
+			_gl.drawArrays( 4, 0, object.count );
+
+			object.count = 0;
+
+		};
+
+		this.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {
+
+			var frontFaceCW = ( object.isMesh && object.matrixWorld.determinant() < 0 );
+
+			state.setMaterial( material, frontFaceCW );
+
+			var program = setProgram( camera, fog, material, object );
+
+			var updateBuffers = false;
+
+			if ( _currentGeometryProgram.geometry !== geometry.id ||
+				_currentGeometryProgram.program !== program.id ||
+				_currentGeometryProgram.wireframe !== ( material.wireframe === true ) ) {
+
+				_currentGeometryProgram.geometry = geometry.id;
+				_currentGeometryProgram.program = program.id;
+				_currentGeometryProgram.wireframe = material.wireframe === true;
+				updateBuffers = true;
+
+			}
+
+			if ( object.morphTargetInfluences ) {
+
+				morphtargets.update( object, geometry, material, program );
+
+				updateBuffers = true;
+
+			}
+
+			//
+
+			var index = geometry.index;
+			var position = geometry.attributes.position;
+			var rangeFactor = 1;
+
+			if ( material.wireframe === true ) {
+
+				index = geometries.getWireframeAttribute( geometry );
+				rangeFactor = 2;
+
+			}
+
+			var attribute;
+			var renderer = bufferRenderer;
+
+			if ( index !== null ) {
+
+				attribute = attributes.get( index );
+
+				renderer = indexedBufferRenderer;
+				renderer.setIndex( attribute );
+
+			}
+
+			if ( updateBuffers ) {
+
+				setupVertexAttributes( material, program, geometry );
+
+				if ( index !== null ) {
+
+					_gl.bindBuffer( 34963, attribute.buffer );
+
+				}
+
+			}
+
+			//
+
+			var dataCount = Infinity;
+
+			if ( index !== null ) {
+
+				dataCount = index.count;
+
+			} else if ( position !== undefined ) {
+
+				dataCount = position.count;
+
+			}
+
+			var rangeStart = geometry.drawRange.start * rangeFactor;
+			var rangeCount = geometry.drawRange.count * rangeFactor;
+
+			var groupStart = group !== null ? group.start * rangeFactor : 0;
+			var groupCount = group !== null ? group.count * rangeFactor : Infinity;
+
+			var drawStart = Math.max( rangeStart, groupStart );
+			var drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;
+
+			var drawCount = Math.max( 0, drawEnd - drawStart + 1 );
+
+			if ( drawCount === 0 ) return;
+
+			//
+
+			if ( object.isMesh ) {
+
+				if ( material.wireframe === true ) {
+
+					state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
+					renderer.setMode( 1 );
+
+				} else {
+
+					switch ( object.drawMode ) {
+
+						case TrianglesDrawMode:
+							renderer.setMode( 4 );
+							break;
+
+						case TriangleStripDrawMode:
+							renderer.setMode( 5 );
+							break;
+
+						case TriangleFanDrawMode:
+							renderer.setMode( 6 );
+							break;
+
+					}
+
+				}
+
+
+			} else if ( object.isLine ) {
+
+				var lineWidth = material.linewidth;
+
+				if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material
+
+				state.setLineWidth( lineWidth * getTargetPixelRatio() );
+
+				if ( object.isLineSegments ) {
+
+					renderer.setMode( 1 );
+
+				} else if ( object.isLineLoop ) {
+
+					renderer.setMode( 2 );
+
+				} else {
+
+					renderer.setMode( 3 );
+
+				}
+
+			} else if ( object.isPoints ) {
+
+				renderer.setMode( 0 );
+
+			} else if ( object.isSprite ) {
+
+				renderer.setMode( 4 );
+
+			}
+
+			if ( geometry && geometry.isInstancedBufferGeometry ) {
+
+				if ( geometry.maxInstancedCount > 0 ) {
+
+					renderer.renderInstances( geometry, drawStart, drawCount );
+
+				}
+
+			} else {
+
+				renderer.render( drawStart, drawCount );
+
+			}
+
+		};
+
+		function setupVertexAttributes( material, program, geometry ) {
+
+			if ( geometry && geometry.isInstancedBufferGeometry && ! capabilities.isWebGL2 ) {
+
+				if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) {
+
+					console.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
+					return;
+
+				}
+
+			}
+
+			state.initAttributes();
+
+			var geometryAttributes = geometry.attributes;
+
+			var programAttributes = program.getAttributes();
+
+			var materialDefaultAttributeValues = material.defaultAttributeValues;
+
+			for ( var name in programAttributes ) {
+
+				var programAttribute = programAttributes[ name ];
+
+				if ( programAttribute >= 0 ) {
+
+					var geometryAttribute = geometryAttributes[ name ];
+
+					if ( geometryAttribute !== undefined ) {
+
+						var normalized = geometryAttribute.normalized;
+						var size = geometryAttribute.itemSize;
+
+						var attribute = attributes.get( geometryAttribute );
+
+						// TODO Attribute may not be available on context restore
+
+						if ( attribute === undefined ) continue;
+
+						var buffer = attribute.buffer;
+						var type = attribute.type;
+						var bytesPerElement = attribute.bytesPerElement;
+
+						if ( geometryAttribute.isInterleavedBufferAttribute ) {
+
+							var data = geometryAttribute.data;
+							var stride = data.stride;
+							var offset = geometryAttribute.offset;
+
+							if ( data && data.isInstancedInterleavedBuffer ) {
+
+								state.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute );
+
+								if ( geometry.maxInstancedCount === undefined ) {
+
+									geometry.maxInstancedCount = data.meshPerAttribute * data.count;
+
+								}
+
+							} else {
+
+								state.enableAttribute( programAttribute );
+
+							}
+
+							_gl.bindBuffer( 34962, buffer );
+							_gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * bytesPerElement, offset * bytesPerElement );
+
+						} else {
+
+							if ( geometryAttribute.isInstancedBufferAttribute ) {
+
+								state.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute );
+
+								if ( geometry.maxInstancedCount === undefined ) {
+
+									geometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;
+
+								}
+
+							} else {
+
+								state.enableAttribute( programAttribute );
+
+							}
+
+							_gl.bindBuffer( 34962, buffer );
+							_gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, 0 );
+
+						}
+
+					} else if ( materialDefaultAttributeValues !== undefined ) {
+
+						var value = materialDefaultAttributeValues[ name ];
+
+						if ( value !== undefined ) {
+
+							switch ( value.length ) {
+
+								case 2:
+									_gl.vertexAttrib2fv( programAttribute, value );
+									break;
+
+								case 3:
+									_gl.vertexAttrib3fv( programAttribute, value );
+									break;
+
+								case 4:
+									_gl.vertexAttrib4fv( programAttribute, value );
+									break;
+
+								default:
+									_gl.vertexAttrib1fv( programAttribute, value );
+
+							}
+
+						}
+
+					}
+
+				}
+
+			}
+
+			state.disableUnusedAttributes();
+
+		}
+
+		// Compile
+
+		this.compile = function ( scene, camera ) {
+
+			currentRenderState = renderStates.get( scene, camera );
+			currentRenderState.init();
+
+			scene.traverse( function ( object ) {
+
+				if ( object.isLight ) {
+
+					currentRenderState.pushLight( object );
+
+					if ( object.castShadow ) {
+
+						currentRenderState.pushShadow( object );
+
+					}
+
+				}
+
+			} );
+
+			currentRenderState.setupLights( camera );
+
+			scene.traverse( function ( object ) {
+
+				if ( object.material ) {
+
+					if ( Array.isArray( object.material ) ) {
+
+						for ( var i = 0; i < object.material.length; i ++ ) {
+
+							initMaterial( object.material[ i ], scene.fog, object );
+
+						}
+
+					} else {
+
+						initMaterial( object.material, scene.fog, object );
+
+					}
+
+				}
+
+			} );
+
+		};
+
+		// Animation Loop
+
+		var onAnimationFrameCallback = null;
+
+		function onAnimationFrame( time ) {
+
+			if ( vr.isPresenting() ) return;
+			if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );
+
+		}
+
+		var animation = new WebGLAnimation();
+		animation.setAnimationLoop( onAnimationFrame );
+
+		if ( typeof window !== 'undefined' ) animation.setContext( window );
+
+		this.setAnimationLoop = function ( callback ) {
+
+			onAnimationFrameCallback = callback;
+			vr.setAnimationLoop( callback );
+
+			animation.start();
+
+		};
+
+		// Rendering
+
+		this.render = function ( scene, camera ) {
+
+			var renderTarget, forceClear;
+
+			if ( arguments[ 2 ] !== undefined ) {
+
+				console.warn( 'THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead.' );
+				renderTarget = arguments[ 2 ];
+
+			}
+
+			if ( arguments[ 3 ] !== undefined ) {
+
+				console.warn( 'THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead.' );
+				forceClear = arguments[ 3 ];
+
+			}
+
+			if ( ! ( camera && camera.isCamera ) ) {
+
+				console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
+				return;
+
+			}
+
+			if ( _isContextLost ) return;
+
+			// reset caching for this frame
+
+			_currentGeometryProgram.geometry = null;
+			_currentGeometryProgram.program = null;
+			_currentGeometryProgram.wireframe = false;
+			_currentMaterialId = - 1;
+			_currentCamera = null;
+
+			// update scene graph
+
+			if ( scene.autoUpdate === true ) scene.updateMatrixWorld();
+
+			// update camera matrices and frustum
+
+			if ( camera.parent === null ) camera.updateMatrixWorld();
+
+			if ( vr.enabled ) {
+
+				camera = vr.getCamera( camera );
+
+			}
+
+			//
+
+			currentRenderState = renderStates.get( scene, camera );
+			currentRenderState.init();
+
+			scene.onBeforeRender( _this, scene, camera, renderTarget || _currentRenderTarget );
+
+			_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
+			_frustum.setFromMatrix( _projScreenMatrix );
+
+			_localClippingEnabled = this.localClippingEnabled;
+			_clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera );
+
+			currentRenderList = renderLists.get( scene, camera );
+			currentRenderList.init();
+
+			projectObject( scene, camera, 0, _this.sortObjects );
+
+			if ( _this.sortObjects === true ) {
+
+				currentRenderList.sort();
+
+			}
+
+			//
+
+			if ( _clippingEnabled ) _clipping.beginShadows();
+
+			var shadowsArray = currentRenderState.state.shadowsArray;
+
+			shadowMap.render( shadowsArray, scene, camera );
+
+			currentRenderState.setupLights( camera );
+
+			if ( _clippingEnabled ) _clipping.endShadows();
+
+			//
+
+			if ( this.info.autoReset ) this.info.reset();
+
+			if ( renderTarget !== undefined ) {
+
+				this.setRenderTarget( renderTarget );
+
+			}
+
+			//
+
+			background.render( currentRenderList, scene, camera, forceClear );
+
+			// render scene
+
+			var opaqueObjects = currentRenderList.opaque;
+			var transparentObjects = currentRenderList.transparent;
+
+			if ( scene.overrideMaterial ) {
+
+				var overrideMaterial = scene.overrideMaterial;
+
+				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera, overrideMaterial );
+				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera, overrideMaterial );
+
+			} else {
+
+				// opaque pass (front-to-back order)
+
+				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera );
+
+				// transparent pass (back-to-front order)
+
+				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera );
+
+			}
+
+			//
+
+			scene.onAfterRender( _this, scene, camera );
+
+			//
+
+			if ( _currentRenderTarget !== null ) {
+
+				// Generate mipmap if we're using any kind of mipmap filtering
+
+				textures.updateRenderTargetMipmap( _currentRenderTarget );
+
+				// resolve multisample renderbuffers to a single-sample texture if necessary
+
+				textures.updateMultisampleRenderTarget( _currentRenderTarget );
+
+			}
+
+			// Ensure depth buffer writing is enabled so it can be cleared on next render
+
+			state.buffers.depth.setTest( true );
+			state.buffers.depth.setMask( true );
+			state.buffers.color.setMask( true );
+
+			state.setPolygonOffset( false );
+
+			if ( vr.enabled ) {
+
+				vr.submitFrame();
+
+			}
+
+			// _gl.finish();
+
+			currentRenderList = null;
+			currentRenderState = null;
+
+		};
+
+		function projectObject( object, camera, groupOrder, sortObjects ) {
+
+			if ( object.visible === false ) return;
+
+			var visible = object.layers.test( camera.layers );
+
+			if ( visible ) {
+
+				if ( object.isGroup ) {
+
+					groupOrder = object.renderOrder;
+
+				} else if ( object.isLight ) {
+
+					currentRenderState.pushLight( object );
+
+					if ( object.castShadow ) {
+
+						currentRenderState.pushShadow( object );
+
+					}
+
+				} else if ( object.isSprite ) {
+
+					if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {
+
+						if ( sortObjects ) {
+
+							_vector3.setFromMatrixPosition( object.matrixWorld )
+								.applyMatrix4( _projScreenMatrix );
+
+						}
+
+						var geometry = objects.update( object );
+						var material = object.material;
+
+						if ( material.visible ) {
+
+							currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null );
+
+						}
+
+					}
+
+				} else if ( object.isImmediateRenderObject ) {
+
+					if ( sortObjects ) {
+
+						_vector3.setFromMatrixPosition( object.matrixWorld )
+							.applyMatrix4( _projScreenMatrix );
+
+					}
+
+					currentRenderList.push( object, null, object.material, groupOrder, _vector3.z, null );
+
+				} else if ( object.isMesh || object.isLine || object.isPoints ) {
+
+					if ( object.isSkinnedMesh ) {
+
+						object.skeleton.update();
+
+					}
+
+					if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {
+
+						if ( sortObjects ) {
+
+							_vector3.setFromMatrixPosition( object.matrixWorld )
+								.applyMatrix4( _projScreenMatrix );
+
+						}
+
+						var geometry = objects.update( object );
+						var material = object.material;
+
+						if ( Array.isArray( material ) ) {
+
+							var groups = geometry.groups;
+
+							for ( var i = 0, l = groups.length; i < l; i ++ ) {
+
+								var group = groups[ i ];
+								var groupMaterial = material[ group.materialIndex ];
+
+								if ( groupMaterial && groupMaterial.visible ) {
+
+									currentRenderList.push( object, geometry, groupMaterial, groupOrder, _vector3.z, group );
+
+								}
+
+							}
+
+						} else if ( material.visible ) {
+
+							currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null );
+
+						}
+
+					}
+
+				}
+
+			}
+
+			var children = object.children;
+
+			for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+				projectObject( children[ i ], camera, groupOrder, sortObjects );
+
+			}
+
+		}
+
+		function renderObjects( renderList, scene, camera, overrideMaterial ) {
+
+			for ( var i = 0, l = renderList.length; i < l; i ++ ) {
+
+				var renderItem = renderList[ i ];
+
+				var object = renderItem.object;
+				var geometry = renderItem.geometry;
+				var material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;
+				var group = renderItem.group;
+
+				if ( camera.isArrayCamera ) {
+
+					_currentArrayCamera = camera;
+
+					var cameras = camera.cameras;
+
+					for ( var j = 0, jl = cameras.length; j < jl; j ++ ) {
+
+						var camera2 = cameras[ j ];
+
+						if ( object.layers.test( camera2.layers ) ) {
+
+							state.viewport( _currentViewport.copy( camera2.viewport ) );
+
+							currentRenderState.setupLights( camera2 );
+
+							renderObject( object, scene, camera2, geometry, material, group );
+
+						}
+
+					}
+
+				} else {
+
+					_currentArrayCamera = null;
+
+					renderObject( object, scene, camera, geometry, material, group );
+
+				}
+
+			}
+
+		}
+
+		function renderObject( object, scene, camera, geometry, material, group ) {
+
+			object.onBeforeRender( _this, scene, camera, geometry, material, group );
+			currentRenderState = renderStates.get( scene, _currentArrayCamera || camera );
+
+			object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
+			object.normalMatrix.getNormalMatrix( object.modelViewMatrix );
+
+			if ( object.isImmediateRenderObject ) {
+
+				state.setMaterial( material );
+
+				var program = setProgram( camera, scene.fog, material, object );
+
+				_currentGeometryProgram.geometry = null;
+				_currentGeometryProgram.program = null;
+				_currentGeometryProgram.wireframe = false;
+
+				renderObjectImmediate( object, program );
+
+			} else {
+
+				_this.renderBufferDirect( camera, scene.fog, geometry, material, object, group );
+
+			}
+
+			object.onAfterRender( _this, scene, camera, geometry, material, group );
+			currentRenderState = renderStates.get( scene, _currentArrayCamera || camera );
+
+		}
+
+		function initMaterial( material, fog, object ) {
+
+			var materialProperties = properties.get( material );
+
+			var lights = currentRenderState.state.lights;
+			var shadowsArray = currentRenderState.state.shadowsArray;
+
+			var lightsHash = materialProperties.lightsHash;
+			var lightsStateHash = lights.state.hash;
+
+			var parameters = programCache.getParameters(
+				material, lights.state, shadowsArray, fog, _clipping.numPlanes, _clipping.numIntersection, object );
+
+			var code = programCache.getProgramCode( material, parameters );
+
+			var program = materialProperties.program;
+			var programChange = true;
+
+			if ( program === undefined ) {
+
+				// new material
+				material.addEventListener( 'dispose', onMaterialDispose );
+
+			} else if ( program.code !== code ) {
+
+				// changed glsl or parameters
+				releaseMaterialProgramReference( material );
+
+			} else if ( lightsHash.stateID !== lightsStateHash.stateID ||
+				lightsHash.directionalLength !== lightsStateHash.directionalLength ||
+				lightsHash.pointLength !== lightsStateHash.pointLength ||
+				lightsHash.spotLength !== lightsStateHash.spotLength ||
+				lightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||
+				lightsHash.hemiLength !== lightsStateHash.hemiLength ||
+				lightsHash.shadowsLength !== lightsStateHash.shadowsLength ) {
+
+				lightsHash.stateID = lightsStateHash.stateID;
+				lightsHash.directionalLength = lightsStateHash.directionalLength;
+				lightsHash.pointLength = lightsStateHash.pointLength;
+				lightsHash.spotLength = lightsStateHash.spotLength;
+				lightsHash.rectAreaLength = lightsStateHash.rectAreaLength;
+				lightsHash.hemiLength = lightsStateHash.hemiLength;
+				lightsHash.shadowsLength = lightsStateHash.shadowsLength;
+
+				programChange = false;
+
+			} else if ( parameters.shaderID !== undefined ) {
+
+				// same glsl and uniform list
+				return;
+
+			} else {
+
+				// only rebuild uniform list
+				programChange = false;
+
+			}
+
+			if ( programChange ) {
+
+				if ( parameters.shaderID ) {
+
+					var shader = ShaderLib[ parameters.shaderID ];
+
+					materialProperties.shader = {
+						name: material.type,
+						uniforms: cloneUniforms( shader.uniforms ),
+						vertexShader: shader.vertexShader,
+						fragmentShader: shader.fragmentShader
+					};
+
+				} else {
+
+					materialProperties.shader = {
+						name: material.type,
+						uniforms: material.uniforms,
+						vertexShader: material.vertexShader,
+						fragmentShader: material.fragmentShader
+					};
+
+				}
+
+				material.onBeforeCompile( materialProperties.shader, _this );
+
+				// Computing code again as onBeforeCompile may have changed the shaders
+				code = programCache.getProgramCode( material, parameters );
+
+				program = programCache.acquireProgram( material, materialProperties.shader, parameters, code );
+
+				materialProperties.program = program;
+				material.program = program;
+
+			}
+
+			var programAttributes = program.getAttributes();
+
+			if ( material.morphTargets ) {
+
+				material.numSupportedMorphTargets = 0;
+
+				for ( var i = 0; i < _this.maxMorphTargets; i ++ ) {
+
+					if ( programAttributes[ 'morphTarget' + i ] >= 0 ) {
+
+						material.numSupportedMorphTargets ++;
+
+					}
+
+				}
+
+			}
+
+			if ( material.morphNormals ) {
+
+				material.numSupportedMorphNormals = 0;
+
+				for ( var i = 0; i < _this.maxMorphNormals; i ++ ) {
+
+					if ( programAttributes[ 'morphNormal' + i ] >= 0 ) {
+
+						material.numSupportedMorphNormals ++;
+
+					}
+
+				}
+
+			}
+
+			var uniforms = materialProperties.shader.uniforms;
+
+			if ( ! material.isShaderMaterial &&
+				! material.isRawShaderMaterial ||
+				material.clipping === true ) {
+
+				materialProperties.numClippingPlanes = _clipping.numPlanes;
+				materialProperties.numIntersection = _clipping.numIntersection;
+				uniforms.clippingPlanes = _clipping.uniform;
+
+			}
+
+			materialProperties.fog = fog;
+
+			// store the light setup it was created for
+			if ( lightsHash === undefined ) {
+
+				materialProperties.lightsHash = lightsHash = {};
+
+			}
+
+			lightsHash.stateID = lightsStateHash.stateID;
+			lightsHash.directionalLength = lightsStateHash.directionalLength;
+			lightsHash.pointLength = lightsStateHash.pointLength;
+			lightsHash.spotLength = lightsStateHash.spotLength;
+			lightsHash.rectAreaLength = lightsStateHash.rectAreaLength;
+			lightsHash.hemiLength = lightsStateHash.hemiLength;
+			lightsHash.shadowsLength = lightsStateHash.shadowsLength;
+
+			if ( material.lights ) {
+
+				// wire up the material to this renderer's lighting state
+
+				uniforms.ambientLightColor.value = lights.state.ambient;
+				uniforms.lightProbe.value = lights.state.probe;
+				uniforms.directionalLights.value = lights.state.directional;
+				uniforms.spotLights.value = lights.state.spot;
+				uniforms.rectAreaLights.value = lights.state.rectArea;
+				uniforms.pointLights.value = lights.state.point;
+				uniforms.hemisphereLights.value = lights.state.hemi;
+
+				uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
+				uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
+				uniforms.spotShadowMap.value = lights.state.spotShadowMap;
+				uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;
+				uniforms.pointShadowMap.value = lights.state.pointShadowMap;
+				uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;
+				// TODO (abelnation): add area lights shadow info to uniforms
+
+			}
+
+			var progUniforms = materialProperties.program.getUniforms(),
+				uniformsList =
+					WebGLUniforms.seqWithValue( progUniforms.seq, uniforms );
+
+			materialProperties.uniformsList = uniformsList;
+
+		}
+
+		function setProgram( camera, fog, material, object ) {
+
+			textures.resetTextureUnits();
+
+			var materialProperties = properties.get( material );
+			var lights = currentRenderState.state.lights;
+
+			var lightsHash = materialProperties.lightsHash;
+			var lightsStateHash = lights.state.hash;
+
+			if ( _clippingEnabled ) {
+
+				if ( _localClippingEnabled || camera !== _currentCamera ) {
+
+					var useCache =
+						camera === _currentCamera &&
+						material.id === _currentMaterialId;
+
+					// we might want to call this function with some ClippingGroup
+					// object instead of the material, once it becomes feasible
+					// (#8465, #8379)
+					_clipping.setState(
+						material.clippingPlanes, material.clipIntersection, material.clipShadows,
+						camera, materialProperties, useCache );
+
+				}
+
+			}
+
+			if ( material.needsUpdate === false ) {
+
+				if ( materialProperties.program === undefined ) {
+
+					material.needsUpdate = true;
+
+				} else if ( material.fog && materialProperties.fog !== fog ) {
+
+					material.needsUpdate = true;
+
+				} else if ( material.lights && ( lightsHash.stateID !== lightsStateHash.stateID ||
+					lightsHash.directionalLength !== lightsStateHash.directionalLength ||
+					lightsHash.pointLength !== lightsStateHash.pointLength ||
+					lightsHash.spotLength !== lightsStateHash.spotLength ||
+					lightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||
+					lightsHash.hemiLength !== lightsStateHash.hemiLength ||
+					lightsHash.shadowsLength !== lightsStateHash.shadowsLength ) ) {
+
+					material.needsUpdate = true;
+
+				} else if ( materialProperties.numClippingPlanes !== undefined &&
+					( materialProperties.numClippingPlanes !== _clipping.numPlanes ||
+					materialProperties.numIntersection !== _clipping.numIntersection ) ) {
+
+					material.needsUpdate = true;
+
+				}
+
+			}
+
+			if ( material.needsUpdate ) {
+
+				initMaterial( material, fog, object );
+				material.needsUpdate = false;
+
+			}
+
+			var refreshProgram = false;
+			var refreshMaterial = false;
+			var refreshLights = false;
+
+			var program = materialProperties.program,
+				p_uniforms = program.getUniforms(),
+				m_uniforms = materialProperties.shader.uniforms;
+
+			if ( state.useProgram( program.program ) ) {
+
+				refreshProgram = true;
+				refreshMaterial = true;
+				refreshLights = true;
+
+			}
+
+			if ( material.id !== _currentMaterialId ) {
+
+				_currentMaterialId = material.id;
+
+				refreshMaterial = true;
+
+			}
+
+			if ( refreshProgram || _currentCamera !== camera ) {
+
+				p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );
+
+				if ( capabilities.logarithmicDepthBuffer ) {
+
+					p_uniforms.setValue( _gl, 'logDepthBufFC',
+						2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );
+
+				}
+
+				if ( _currentCamera !== camera ) {
+
+					_currentCamera = camera;
+
+					// lighting uniforms depend on the camera so enforce an update
+					// now, in case this material supports lights - or later, when
+					// the next material that does gets activated:
+
+					refreshMaterial = true;		// set to true on material change
+					refreshLights = true;		// remains set until update done
+
+				}
+
+				// load material specific uniforms
+				// (shader material also gets them for the sake of genericity)
+
+				if ( material.isShaderMaterial ||
+					material.isMeshPhongMaterial ||
+					material.isMeshStandardMaterial ||
+					material.envMap ) {
+
+					var uCamPos = p_uniforms.map.cameraPosition;
+
+					if ( uCamPos !== undefined ) {
+
+						uCamPos.setValue( _gl,
+							_vector3.setFromMatrixPosition( camera.matrixWorld ) );
+
+					}
+
+				}
+
+				if ( material.isMeshPhongMaterial ||
+					material.isMeshLambertMaterial ||
+					material.isMeshBasicMaterial ||
+					material.isMeshStandardMaterial ||
+					material.isShaderMaterial ||
+					material.skinning ) {
+
+					p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );
+
+				}
+
+			}
+
+			// skinning uniforms must be set even if material didn't change
+			// auto-setting of texture unit for bone texture must go before other textures
+			// not sure why, but otherwise weird things happen
+
+			if ( material.skinning ) {
+
+				p_uniforms.setOptional( _gl, object, 'bindMatrix' );
+				p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );
+
+				var skeleton = object.skeleton;
+
+				if ( skeleton ) {
+
+					var bones = skeleton.bones;
+
+					if ( capabilities.floatVertexTextures ) {
+
+						if ( skeleton.boneTexture === undefined ) {
+
+							// layout (1 matrix = 4 pixels)
+							//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
+							//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
+							//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
+							//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
+							//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)
+
+
+							var size = Math.sqrt( bones.length * 4 ); // 4 pixels needed for 1 matrix
+							size = _Math.ceilPowerOfTwo( size );
+							size = Math.max( size, 4 );
+
+							var boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel
+							boneMatrices.set( skeleton.boneMatrices ); // copy current values
+
+							var boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );
+							boneTexture.needsUpdate = true;
+
+							skeleton.boneMatrices = boneMatrices;
+							skeleton.boneTexture = boneTexture;
+							skeleton.boneTextureSize = size;
+
+						}
+
+						p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture, textures );
+						p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );
+
+					} else {
+
+						p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );
+
+					}
+
+				}
+
+			}
+
+			if ( refreshMaterial ) {
+
+				p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );
+				p_uniforms.setValue( _gl, 'toneMappingWhitePoint', _this.toneMappingWhitePoint );
+
+				if ( material.lights ) {
+
+					// the current material requires lighting info
+
+					// note: all lighting uniforms are always set correctly
+					// they simply reference the renderer's state for their
+					// values
+					//
+					// use the current material's .needsUpdate flags to set
+					// the GL state when required
+
+					markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );
+
+				}
+
+				// refresh uniforms common to several materials
+
+				if ( fog && material.fog ) {
+
+					refreshUniformsFog( m_uniforms, fog );
+
+				}
+
+				if ( material.isMeshBasicMaterial ) {
+
+					refreshUniformsCommon( m_uniforms, material );
+
+				} else if ( material.isMeshLambertMaterial ) {
+
+					refreshUniformsCommon( m_uniforms, material );
+					refreshUniformsLambert( m_uniforms, material );
+
+				} else if ( material.isMeshPhongMaterial ) {
+
+					refreshUniformsCommon( m_uniforms, material );
+
+					if ( material.isMeshToonMaterial ) {
+
+						refreshUniformsToon( m_uniforms, material );
+
+					} else {
+
+						refreshUniformsPhong( m_uniforms, material );
+
+					}
+
+				} else if ( material.isMeshStandardMaterial ) {
+
+					refreshUniformsCommon( m_uniforms, material );
+
+					if ( material.isMeshPhysicalMaterial ) {
+
+						refreshUniformsPhysical( m_uniforms, material );
+
+					} else {
+
+						refreshUniformsStandard( m_uniforms, material );
+
+					}
+
+				} else if ( material.isMeshMatcapMaterial ) {
+
+					refreshUniformsCommon( m_uniforms, material );
+
+					refreshUniformsMatcap( m_uniforms, material );
+
+				} else if ( material.isMeshDepthMaterial ) {
+
+					refreshUniformsCommon( m_uniforms, material );
+					refreshUniformsDepth( m_uniforms, material );
+
+				} else if ( material.isMeshDistanceMaterial ) {
+
+					refreshUniformsCommon( m_uniforms, material );
+					refreshUniformsDistance( m_uniforms, material );
+
+				} else if ( material.isMeshNormalMaterial ) {
+
+					refreshUniformsCommon( m_uniforms, material );
+					refreshUniformsNormal( m_uniforms, material );
+
+				} else if ( material.isLineBasicMaterial ) {
+
+					refreshUniformsLine( m_uniforms, material );
+
+					if ( material.isLineDashedMaterial ) {
+
+						refreshUniformsDash( m_uniforms, material );
+
+					}
+
+				} else if ( material.isPointsMaterial ) {
+
+					refreshUniformsPoints( m_uniforms, material );
+
+				} else if ( material.isSpriteMaterial ) {
+
+					refreshUniformsSprites( m_uniforms, material );
+
+				} else if ( material.isShadowMaterial ) {
+
+					m_uniforms.color.value.copy( material.color );
+					m_uniforms.opacity.value = material.opacity;
+
+				}
+
+				// RectAreaLight Texture
+				// TODO (mrdoob): Find a nicer implementation
+
+				if ( m_uniforms.ltc_1 !== undefined ) m_uniforms.ltc_1.value = UniformsLib.LTC_1;
+				if ( m_uniforms.ltc_2 !== undefined ) m_uniforms.ltc_2.value = UniformsLib.LTC_2;
+
+				WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures );
+
+			}
+
+			if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {
+
+				WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures );
+				material.uniformsNeedUpdate = false;
+
+			}
+
+			if ( material.isSpriteMaterial ) {
+
+				p_uniforms.setValue( _gl, 'center', object.center );
+
+			}
+
+			// common matrices
+
+			p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );
+			p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );
+			p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );
+
+			return program;
+
+		}
+
+		// Uniforms (refresh uniforms objects)
+
+		function refreshUniformsCommon( uniforms, material ) {
+
+			uniforms.opacity.value = material.opacity;
+
+			if ( material.color ) {
+
+				uniforms.diffuse.value.copy( material.color );
+
+			}
+
+			if ( material.emissive ) {
+
+				uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );
+
+			}
+
+			if ( material.map ) {
+
+				uniforms.map.value = material.map;
+
+			}
+
+			if ( material.alphaMap ) {
+
+				uniforms.alphaMap.value = material.alphaMap;
+
+			}
+
+			if ( material.specularMap ) {
+
+				uniforms.specularMap.value = material.specularMap;
+
+			}
+
+			if ( material.envMap ) {
+
+				uniforms.envMap.value = material.envMap;
+
+				// don't flip CubeTexture envMaps, flip everything else:
+				//  WebGLRenderTargetCube will be flipped for backwards compatibility
+				//  WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture
+				// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future
+				uniforms.flipEnvMap.value = material.envMap.isCubeTexture ? - 1 : 1;
+
+				uniforms.reflectivity.value = material.reflectivity;
+				uniforms.refractionRatio.value = material.refractionRatio;
+
+				uniforms.maxMipLevel.value = properties.get( material.envMap ).__maxMipLevel;
+
+			}
+
+			if ( material.lightMap ) {
+
+				uniforms.lightMap.value = material.lightMap;
+				uniforms.lightMapIntensity.value = material.lightMapIntensity;
+
+			}
+
+			if ( material.aoMap ) {
+
+				uniforms.aoMap.value = material.aoMap;
+				uniforms.aoMapIntensity.value = material.aoMapIntensity;
+
+			}
+
+			// uv repeat and offset setting priorities
+			// 1. color map
+			// 2. specular map
+			// 3. normal map
+			// 4. bump map
+			// 5. alpha map
+			// 6. emissive map
+
+			var uvScaleMap;
+
+			if ( material.map ) {
+
+				uvScaleMap = material.map;
+
+			} else if ( material.specularMap ) {
+
+				uvScaleMap = material.specularMap;
+
+			} else if ( material.displacementMap ) {
+
+				uvScaleMap = material.displacementMap;
+
+			} else if ( material.normalMap ) {
+
+				uvScaleMap = material.normalMap;
+
+			} else if ( material.bumpMap ) {
+
+				uvScaleMap = material.bumpMap;
+
+			} else if ( material.roughnessMap ) {
+
+				uvScaleMap = material.roughnessMap;
+
+			} else if ( material.metalnessMap ) {
+
+				uvScaleMap = material.metalnessMap;
+
+			} else if ( material.alphaMap ) {
+
+				uvScaleMap = material.alphaMap;
+
+			} else if ( material.emissiveMap ) {
+
+				uvScaleMap = material.emissiveMap;
+
+			}
+
+			if ( uvScaleMap !== undefined ) {
+
+				// backwards compatibility
+				if ( uvScaleMap.isWebGLRenderTarget ) {
+
+					uvScaleMap = uvScaleMap.texture;
+
+				}
+
+				if ( uvScaleMap.matrixAutoUpdate === true ) {
+
+					uvScaleMap.updateMatrix();
+
+				}
+
+				uniforms.uvTransform.value.copy( uvScaleMap.matrix );
+
+			}
+
+		}
+
+		function refreshUniformsLine( uniforms, material ) {
+
+			uniforms.diffuse.value.copy( material.color );
+			uniforms.opacity.value = material.opacity;
+
+		}
+
+		function refreshUniformsDash( uniforms, material ) {
+
+			uniforms.dashSize.value = material.dashSize;
+			uniforms.totalSize.value = material.dashSize + material.gapSize;
+			uniforms.scale.value = material.scale;
+
+		}
+
+		function refreshUniformsPoints( uniforms, material ) {
+
+			uniforms.diffuse.value.copy( material.color );
+			uniforms.opacity.value = material.opacity;
+			uniforms.size.value = material.size * _pixelRatio;
+			uniforms.scale.value = _height * 0.5;
+
+			uniforms.map.value = material.map;
+
+			if ( material.map !== null ) {
+
+				if ( material.map.matrixAutoUpdate === true ) {
+
+					material.map.updateMatrix();
+
+				}
+
+				uniforms.uvTransform.value.copy( material.map.matrix );
+
+			}
+
+		}
+
+		function refreshUniformsSprites( uniforms, material ) {
+
+			uniforms.diffuse.value.copy( material.color );
+			uniforms.opacity.value = material.opacity;
+			uniforms.rotation.value = material.rotation;
+			uniforms.map.value = material.map;
+
+			if ( material.map !== null ) {
+
+				if ( material.map.matrixAutoUpdate === true ) {
+
+					material.map.updateMatrix();
+
+				}
+
+				uniforms.uvTransform.value.copy( material.map.matrix );
+
+			}
+
+		}
+
+		function refreshUniformsFog( uniforms, fog ) {
+
+			uniforms.fogColor.value.copy( fog.color );
+
+			if ( fog.isFog ) {
+
+				uniforms.fogNear.value = fog.near;
+				uniforms.fogFar.value = fog.far;
+
+			} else if ( fog.isFogExp2 ) {
+
+				uniforms.fogDensity.value = fog.density;
+
+			}
+
+		}
+
+		function refreshUniformsLambert( uniforms, material ) {
+
+			if ( material.emissiveMap ) {
+
+				uniforms.emissiveMap.value = material.emissiveMap;
+
+			}
+
+		}
+
+		function refreshUniformsPhong( uniforms, material ) {
+
+			uniforms.specular.value.copy( material.specular );
+			uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )
+
+			if ( material.emissiveMap ) {
+
+				uniforms.emissiveMap.value = material.emissiveMap;
+
+			}
+
+			if ( material.bumpMap ) {
+
+				uniforms.bumpMap.value = material.bumpMap;
+				uniforms.bumpScale.value = material.bumpScale;
+				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;
+
+			}
+
+			if ( material.normalMap ) {
+
+				uniforms.normalMap.value = material.normalMap;
+				uniforms.normalScale.value.copy( material.normalScale );
+				if ( material.side === BackSide ) uniforms.normalScale.value.negate();
+
+			}
+
+			if ( material.displacementMap ) {
+
+				uniforms.displacementMap.value = material.displacementMap;
+				uniforms.displacementScale.value = material.displacementScale;
+				uniforms.displacementBias.value = material.displacementBias;
+
+			}
+
+		}
+
+		function refreshUniformsToon( uniforms, material ) {
+
+			refreshUniformsPhong( uniforms, material );
+
+			if ( material.gradientMap ) {
+
+				uniforms.gradientMap.value = material.gradientMap;
+
+			}
+
+		}
+
+		function refreshUniformsStandard( uniforms, material ) {
+
+			uniforms.roughness.value = material.roughness;
+			uniforms.metalness.value = material.metalness;
+
+			if ( material.roughnessMap ) {
+
+				uniforms.roughnessMap.value = material.roughnessMap;
+
+			}
+
+			if ( material.metalnessMap ) {
+
+				uniforms.metalnessMap.value = material.metalnessMap;
+
+			}
+
+			if ( material.emissiveMap ) {
+
+				uniforms.emissiveMap.value = material.emissiveMap;
+
+			}
+
+			if ( material.bumpMap ) {
+
+				uniforms.bumpMap.value = material.bumpMap;
+				uniforms.bumpScale.value = material.bumpScale;
+				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;
+
+			}
+
+			if ( material.normalMap ) {
+
+				uniforms.normalMap.value = material.normalMap;
+				uniforms.normalScale.value.copy( material.normalScale );
+				if ( material.side === BackSide ) uniforms.normalScale.value.negate();
+
+			}
+
+			if ( material.displacementMap ) {
+
+				uniforms.displacementMap.value = material.displacementMap;
+				uniforms.displacementScale.value = material.displacementScale;
+				uniforms.displacementBias.value = material.displacementBias;
+
+			}
+
+			if ( material.envMap ) {
+
+				//uniforms.envMap.value = material.envMap; // part of uniforms common
+				uniforms.envMapIntensity.value = material.envMapIntensity;
+
+			}
+
+		}
+
+		function refreshUniformsPhysical( uniforms, material ) {
+
+			refreshUniformsStandard( uniforms, material );
+
+			uniforms.reflectivity.value = material.reflectivity; // also part of uniforms common
+
+			uniforms.clearCoat.value = material.clearCoat;
+			uniforms.clearCoatRoughness.value = material.clearCoatRoughness;
+
+		}
+
+		function refreshUniformsMatcap( uniforms, material ) {
+
+			if ( material.matcap ) {
+
+				uniforms.matcap.value = material.matcap;
+
+			}
+
+			if ( material.bumpMap ) {
+
+				uniforms.bumpMap.value = material.bumpMap;
+				uniforms.bumpScale.value = material.bumpScale;
+				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;
+
+			}
+
+			if ( material.normalMap ) {
+
+				uniforms.normalMap.value = material.normalMap;
+				uniforms.normalScale.value.copy( material.normalScale );
+				if ( material.side === BackSide ) uniforms.normalScale.value.negate();
+
+			}
+
+			if ( material.displacementMap ) {
+
+				uniforms.displacementMap.value = material.displacementMap;
+				uniforms.displacementScale.value = material.displacementScale;
+				uniforms.displacementBias.value = material.displacementBias;
+
+			}
+
+		}
+
+		function refreshUniformsDepth( uniforms, material ) {
+
+			if ( material.displacementMap ) {
+
+				uniforms.displacementMap.value = material.displacementMap;
+				uniforms.displacementScale.value = material.displacementScale;
+				uniforms.displacementBias.value = material.displacementBias;
+
+			}
+
+		}
+
+		function refreshUniformsDistance( uniforms, material ) {
+
+			if ( material.displacementMap ) {
+
+				uniforms.displacementMap.value = material.displacementMap;
+				uniforms.displacementScale.value = material.displacementScale;
+				uniforms.displacementBias.value = material.displacementBias;
+
+			}
+
+			uniforms.referencePosition.value.copy( material.referencePosition );
+			uniforms.nearDistance.value = material.nearDistance;
+			uniforms.farDistance.value = material.farDistance;
+
+		}
+
+		function refreshUniformsNormal( uniforms, material ) {
+
+			if ( material.bumpMap ) {
+
+				uniforms.bumpMap.value = material.bumpMap;
+				uniforms.bumpScale.value = material.bumpScale;
+				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;
+
+			}
+
+			if ( material.normalMap ) {
+
+				uniforms.normalMap.value = material.normalMap;
+				uniforms.normalScale.value.copy( material.normalScale );
+				if ( material.side === BackSide ) uniforms.normalScale.value.negate();
+
+			}
+
+			if ( material.displacementMap ) {
+
+				uniforms.displacementMap.value = material.displacementMap;
+				uniforms.displacementScale.value = material.displacementScale;
+				uniforms.displacementBias.value = material.displacementBias;
+
+			}
+
+		}
+
+		// If uniforms are marked as clean, they don't need to be loaded to the GPU.
+
+		function markUniformsLightsNeedsUpdate( uniforms, value ) {
+
+			uniforms.ambientLightColor.needsUpdate = value;
+			uniforms.lightProbe.needsUpdate = value;
+
+			uniforms.directionalLights.needsUpdate = value;
+			uniforms.pointLights.needsUpdate = value;
+			uniforms.spotLights.needsUpdate = value;
+			uniforms.rectAreaLights.needsUpdate = value;
+			uniforms.hemisphereLights.needsUpdate = value;
+
+		}
+
+		//
+		this.setFramebuffer = function ( value ) {
+
+			if ( _framebuffer !== value ) _gl.bindFramebuffer( 36160, value );
+
+			_framebuffer = value;
+
+		};
+
+		this.getActiveCubeFace = function () {
+
+			return _currentActiveCubeFace;
+
+		};
+
+		this.getActiveMipMapLevel = function () {
+
+			return _currentActiveMipmapLevel;
+
+		};
+
+		this.getRenderTarget = function () {
+
+			return _currentRenderTarget;
+
+		};
+
+		this.setRenderTarget = function ( renderTarget, activeCubeFace, activeMipMapLevel ) {
+
+			_currentRenderTarget = renderTarget;
+			_currentActiveCubeFace = activeCubeFace;
+			_currentActiveMipmapLevel = activeMipMapLevel;
+
+			if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {
+
+				textures.setupRenderTarget( renderTarget );
+
+			}
+
+			var framebuffer = _framebuffer;
+			var isCube = false;
+
+			if ( renderTarget ) {
+
+				var __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;
+
+				if ( renderTarget.isWebGLRenderTargetCube ) {
+
+					framebuffer = __webglFramebuffer[ activeCubeFace || 0 ];
+					isCube = true;
+
+				} else if ( renderTarget.isWebGLMultisampleRenderTarget ) {
+
+					framebuffer = properties.get( renderTarget ).__webglMultisampledFramebuffer;
+
+				} else {
+
+					framebuffer = __webglFramebuffer;
+
+				}
+
+				_currentViewport.copy( renderTarget.viewport );
+				_currentScissor.copy( renderTarget.scissor );
+				_currentScissorTest = renderTarget.scissorTest;
+
+			} else {
+
+				_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio );
+				_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio );
+				_currentScissorTest = _scissorTest;
+
+			}
+
+			if ( _currentFramebuffer !== framebuffer ) {
+
+				_gl.bindFramebuffer( 36160, framebuffer );
+				_currentFramebuffer = framebuffer;
+
+			}
+
+			state.viewport( _currentViewport );
+			state.scissor( _currentScissor );
+			state.setScissorTest( _currentScissorTest );
+
+			if ( isCube ) {
+
+				var textureProperties = properties.get( renderTarget.texture );
+				_gl.framebufferTexture2D( 36160, 36064, 34069 + ( activeCubeFace || 0 ), textureProperties.__webglTexture, activeMipMapLevel || 0 );
+
+			}
+
+		};
+
+		this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer, activeCubeFaceIndex ) {
+
+			if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {
+
+				console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
+				return;
+
+			}
+
+			var framebuffer = properties.get( renderTarget ).__webglFramebuffer;
+
+			if ( renderTarget.isWebGLRenderTargetCube && activeCubeFaceIndex !== undefined ) {
+
+				framebuffer = framebuffer[ activeCubeFaceIndex ];
+
+			}
+
+			if ( framebuffer ) {
+
+				var restore = false;
+
+				if ( framebuffer !== _currentFramebuffer ) {
+
+					_gl.bindFramebuffer( 36160, framebuffer );
+
+					restore = true;
+
+				}
+
+				try {
+
+					var texture = renderTarget.texture;
+					var textureFormat = texture.format;
+					var textureType = texture.type;
+
+					if ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( 35739 ) ) {
+
+						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
+						return;
+
+					}
+
+					if ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( 35738 ) && // IE11, Edge and Chrome Mac < 52 (#9513)
+						! ( textureType === FloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox
+						! ( textureType === HalfFloatType && ( capabilities.isWebGL2 ? extensions.get( 'EXT_color_buffer_float' ) : extensions.get( 'EXT_color_buffer_half_float' ) ) ) ) {
+
+						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
+						return;
+
+					}
+
+					if ( _gl.checkFramebufferStatus( 36160 ) === 36053 ) {
+
+						// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)
+
+						if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {
+
+							_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );
+
+						}
+
+					} else {
+
+						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );
+
+					}
+
+				} finally {
+
+					if ( restore ) {
+
+						_gl.bindFramebuffer( 36160, _currentFramebuffer );
+
+					}
+
+				}
+
+			}
+
+		};
+
+		this.copyFramebufferToTexture = function ( position, texture, level ) {
+
+			var width = texture.image.width;
+			var height = texture.image.height;
+			var glFormat = utils.convert( texture.format );
+
+			textures.setTexture2D( texture, 0 );
+
+			_gl.copyTexImage2D( 3553, level || 0, glFormat, position.x, position.y, width, height, 0 );
+
+		};
+
+		this.copyTextureToTexture = function ( position, srcTexture, dstTexture, level ) {
+
+			var width = srcTexture.image.width;
+			var height = srcTexture.image.height;
+			var glFormat = utils.convert( dstTexture.format );
+			var glType = utils.convert( dstTexture.type );
+
+			textures.setTexture2D( dstTexture, 0 );
+
+			if ( srcTexture.isDataTexture ) {
+
+				_gl.texSubImage2D( 3553, level || 0, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data );
+
+			} else {
+
+				_gl.texSubImage2D( 3553, level || 0, position.x, position.y, glFormat, glType, srcTexture.image );
+
+			}
+
+		};
+
+		/*
+		if ( typeof __THREE_DEVTOOLS__ !== undefined ) {
+			__THREE_DEVTOOLS__.dispatchEvent( { type: 'renderer', value: this } );
+		}
+		*/
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function FogExp2( color, density ) {
+
+		this.name = '';
+
+		this.color = new Color( color );
+		this.density = ( density !== undefined ) ? density : 0.00025;
+
+	}
+
+	Object.assign( FogExp2.prototype, {
+
+		isFogExp2: true,
+
+		clone: function () {
+
+			return new FogExp2( this.color, this.density );
+
+		},
+
+		toJSON: function ( /* meta */ ) {
+
+			return {
+				type: 'FogExp2',
+				color: this.color.getHex(),
+				density: this.density
+			};
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function Fog( color, near, far ) {
+
+		this.name = '';
+
+		this.color = new Color( color );
+
+		this.near = ( near !== undefined ) ? near : 1;
+		this.far = ( far !== undefined ) ? far : 1000;
+
+	}
+
+	Object.assign( Fog.prototype, {
+
+		isFog: true,
+
+		clone: function () {
+
+			return new Fog( this.color, this.near, this.far );
+
+		},
+
+		toJSON: function ( /* meta */ ) {
+
+			return {
+				type: 'Fog',
+				color: this.color.getHex(),
+				near: this.near,
+				far: this.far
+			};
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function Scene() {
+
+		Object3D.call( this );
+
+		this.type = 'Scene';
+
+		this.background = null;
+		this.fog = null;
+		this.overrideMaterial = null;
+
+		this.autoUpdate = true; // checked by the renderer
+
+		/*
+		if ( typeof __THREE_DEVTOOLS__ !== undefined ) {
+			__THREE_DEVTOOLS__.dispatchEvent( { type: 'scene', value: this } );
+		}
+		*/
+
+	}
+
+	Scene.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Scene,
+
+		isScene: true,
+
+		copy: function ( source, recursive ) {
+
+			Object3D.prototype.copy.call( this, source, recursive );
+
+			if ( source.background !== null ) this.background = source.background.clone();
+			if ( source.fog !== null ) this.fog = source.fog.clone();
+			if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();
+
+			this.autoUpdate = source.autoUpdate;
+			this.matrixAutoUpdate = source.matrixAutoUpdate;
+
+			return this;
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var data = Object3D.prototype.toJSON.call( this, meta );
+
+			if ( this.background !== null ) data.object.background = this.background.toJSON( meta );
+			if ( this.fog !== null ) data.object.fog = this.fog.toJSON();
+
+			return data;
+
+		},
+
+		dispose: function () {
+
+			this.dispatchEvent( { type: 'dispose' } );
+
+		}
+
+	} );
+
+	/**
+	 * @author benaadams / https://twitter.com/ben_a_adams
+	 */
+
+	function InterleavedBuffer( array, stride ) {
+
+		this.array = array;
+		this.stride = stride;
+		this.count = array !== undefined ? array.length / stride : 0;
+
+		this.dynamic = false;
+		this.updateRange = { offset: 0, count: - 1 };
+
+		this.version = 0;
+
+	}
+
+	Object.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {
+
+		set: function ( value ) {
+
+			if ( value === true ) this.version ++;
+
+		}
+
+	} );
+
+	Object.assign( InterleavedBuffer.prototype, {
+
+		isInterleavedBuffer: true,
+
+		onUploadCallback: function () {},
+
+		setArray: function ( array ) {
+
+			if ( Array.isArray( array ) ) {
+
+				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
+
+			}
+
+			this.count = array !== undefined ? array.length / this.stride : 0;
+			this.array = array;
+
+			return this;
+
+		},
+
+		setDynamic: function ( value ) {
+
+			this.dynamic = value;
+
+			return this;
+
+		},
+
+		copy: function ( source ) {
+
+			this.array = new source.array.constructor( source.array );
+			this.count = source.count;
+			this.stride = source.stride;
+			this.dynamic = source.dynamic;
+
+			return this;
+
+		},
+
+		copyAt: function ( index1, attribute, index2 ) {
+
+			index1 *= this.stride;
+			index2 *= attribute.stride;
+
+			for ( var i = 0, l = this.stride; i < l; i ++ ) {
+
+				this.array[ index1 + i ] = attribute.array[ index2 + i ];
+
+			}
+
+			return this;
+
+		},
+
+		set: function ( value, offset ) {
+
+			if ( offset === undefined ) offset = 0;
+
+			this.array.set( value, offset );
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		onUpload: function ( callback ) {
+
+			this.onUploadCallback = callback;
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author benaadams / https://twitter.com/ben_a_adams
+	 */
+
+	function InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) {
+
+		this.data = interleavedBuffer;
+		this.itemSize = itemSize;
+		this.offset = offset;
+
+		this.normalized = normalized === true;
+
+	}
+
+	Object.defineProperties( InterleavedBufferAttribute.prototype, {
+
+		count: {
+
+			get: function () {
+
+				return this.data.count;
+
+			}
+
+		},
+
+		array: {
+
+			get: function () {
+
+				return this.data.array;
+
+			}
+
+		}
+
+	} );
+
+	Object.assign( InterleavedBufferAttribute.prototype, {
+
+		isInterleavedBufferAttribute: true,
+
+		setX: function ( index, x ) {
+
+			this.data.array[ index * this.data.stride + this.offset ] = x;
+
+			return this;
+
+		},
+
+		setY: function ( index, y ) {
+
+			this.data.array[ index * this.data.stride + this.offset + 1 ] = y;
+
+			return this;
+
+		},
+
+		setZ: function ( index, z ) {
+
+			this.data.array[ index * this.data.stride + this.offset + 2 ] = z;
+
+			return this;
+
+		},
+
+		setW: function ( index, w ) {
+
+			this.data.array[ index * this.data.stride + this.offset + 3 ] = w;
+
+			return this;
+
+		},
+
+		getX: function ( index ) {
+
+			return this.data.array[ index * this.data.stride + this.offset ];
+
+		},
+
+		getY: function ( index ) {
+
+			return this.data.array[ index * this.data.stride + this.offset + 1 ];
+
+		},
+
+		getZ: function ( index ) {
+
+			return this.data.array[ index * this.data.stride + this.offset + 2 ];
+
+		},
+
+		getW: function ( index ) {
+
+			return this.data.array[ index * this.data.stride + this.offset + 3 ];
+
+		},
+
+		setXY: function ( index, x, y ) {
+
+			index = index * this.data.stride + this.offset;
+
+			this.data.array[ index + 0 ] = x;
+			this.data.array[ index + 1 ] = y;
+
+			return this;
+
+		},
+
+		setXYZ: function ( index, x, y, z ) {
+
+			index = index * this.data.stride + this.offset;
+
+			this.data.array[ index + 0 ] = x;
+			this.data.array[ index + 1 ] = y;
+			this.data.array[ index + 2 ] = z;
+
+			return this;
+
+		},
+
+		setXYZW: function ( index, x, y, z, w ) {
+
+			index = index * this.data.stride + this.offset;
+
+			this.data.array[ index + 0 ] = x;
+			this.data.array[ index + 1 ] = y;
+			this.data.array[ index + 2 ] = z;
+			this.data.array[ index + 3 ] = w;
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 *
+	 * parameters = {
+	 *  color: <hex>,
+	 *  map: new THREE.Texture( <Image> ),
+	 *  rotation: <float>,
+	 *  sizeAttenuation: <bool>
+	 * }
+	 */
+
+	function SpriteMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'SpriteMaterial';
+
+		this.color = new Color( 0xffffff );
+		this.map = null;
+
+		this.rotation = 0;
+
+		this.sizeAttenuation = true;
+
+		this.lights = false;
+		this.transparent = true;
+
+		this.setValues( parameters );
+
+	}
+
+	SpriteMaterial.prototype = Object.create( Material.prototype );
+	SpriteMaterial.prototype.constructor = SpriteMaterial;
+	SpriteMaterial.prototype.isSpriteMaterial = true;
+
+	SpriteMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.color.copy( source.color );
+		this.map = source.map;
+
+		this.rotation = source.rotation;
+
+		this.sizeAttenuation = source.sizeAttenuation;
+
+		return this;
+
+	};
+
+	/**
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	var geometry;
+
+	function Sprite( material ) {
+
+		Object3D.call( this );
+
+		this.type = 'Sprite';
+
+		if ( geometry === undefined ) {
+
+			geometry = new BufferGeometry();
+
+			var float32Array = new Float32Array( [
+				- 0.5, - 0.5, 0, 0, 0,
+				0.5, - 0.5, 0, 1, 0,
+				0.5, 0.5, 0, 1, 1,
+				- 0.5, 0.5, 0, 0, 1
+			] );
+
+			var interleavedBuffer = new InterleavedBuffer( float32Array, 5 );
+
+			geometry.setIndex( [ 0, 1, 2,	0, 2, 3 ] );
+			geometry.addAttribute( 'position', new InterleavedBufferAttribute( interleavedBuffer, 3, 0, false ) );
+			geometry.addAttribute( 'uv', new InterleavedBufferAttribute( interleavedBuffer, 2, 3, false ) );
+
+		}
+
+		this.geometry = geometry;
+		this.material = ( material !== undefined ) ? material : new SpriteMaterial();
+
+		this.center = new Vector2( 0.5, 0.5 );
+
+	}
+
+	Sprite.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Sprite,
+
+		isSprite: true,
+
+		raycast: ( function () {
+
+			var intersectPoint = new Vector3();
+			var worldScale = new Vector3();
+			var mvPosition = new Vector3();
+
+			var alignedPosition = new Vector2();
+			var rotatedPosition = new Vector2();
+			var viewWorldMatrix = new Matrix4();
+
+			var vA = new Vector3();
+			var vB = new Vector3();
+			var vC = new Vector3();
+
+			var uvA = new Vector2();
+			var uvB = new Vector2();
+			var uvC = new Vector2();
+
+			function transformVertex( vertexPosition, mvPosition, center, scale, sin, cos ) {
+
+				// compute position in camera space
+				alignedPosition.subVectors( vertexPosition, center ).addScalar( 0.5 ).multiply( scale );
+
+				// to check if rotation is not zero
+				if ( sin !== undefined ) {
+
+					rotatedPosition.x = ( cos * alignedPosition.x ) - ( sin * alignedPosition.y );
+					rotatedPosition.y = ( sin * alignedPosition.x ) + ( cos * alignedPosition.y );
+
+				} else {
+
+					rotatedPosition.copy( alignedPosition );
+
+				}
+
+
+				vertexPosition.copy( mvPosition );
+				vertexPosition.x += rotatedPosition.x;
+				vertexPosition.y += rotatedPosition.y;
+
+				// transform to world space
+				vertexPosition.applyMatrix4( viewWorldMatrix );
+
+			}
+
+			return function raycast( raycaster, intersects ) {
+
+				worldScale.setFromMatrixScale( this.matrixWorld );
+				viewWorldMatrix.getInverse( this.modelViewMatrix ).premultiply( this.matrixWorld );
+				mvPosition.setFromMatrixPosition( this.modelViewMatrix );
+
+				var rotation = this.material.rotation;
+				var sin, cos;
+				if ( rotation !== 0 ) {
+
+					cos = Math.cos( rotation );
+					sin = Math.sin( rotation );
+
+				}
+
+				var center = this.center;
+
+				transformVertex( vA.set( - 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
+				transformVertex( vB.set( 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
+				transformVertex( vC.set( 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
+
+				uvA.set( 0, 0 );
+				uvB.set( 1, 0 );
+				uvC.set( 1, 1 );
+
+				// check first triangle
+				var intersect = raycaster.ray.intersectTriangle( vA, vB, vC, false, intersectPoint );
+
+				if ( intersect === null ) {
+
+					// check second triangle
+					transformVertex( vB.set( - 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
+					uvB.set( 0, 1 );
+
+					intersect = raycaster.ray.intersectTriangle( vA, vC, vB, false, intersectPoint );
+					if ( intersect === null ) {
+
+						return;
+
+					}
+
+				}
+
+				var distance = raycaster.ray.origin.distanceTo( intersectPoint );
+
+				if ( distance < raycaster.near || distance > raycaster.far ) return;
+
+				intersects.push( {
+
+					distance: distance,
+					point: intersectPoint.clone(),
+					uv: Triangle.getUV( intersectPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2() ),
+					face: null,
+					object: this
+
+				} );
+
+			};
+
+		}() ),
+
+		clone: function () {
+
+			return new this.constructor( this.material ).copy( this );
+
+		},
+
+		copy: function ( source ) {
+
+			Object3D.prototype.copy.call( this, source );
+
+			if ( source.center !== undefined ) this.center.copy( source.center );
+
+			return this;
+
+		}
+
+
+	} );
+
+	/**
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function LOD() {
+
+		Object3D.call( this );
+
+		this.type = 'LOD';
+
+		Object.defineProperties( this, {
+			levels: {
+				enumerable: true,
+				value: []
+			}
+		} );
+
+	}
+
+	LOD.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: LOD,
+
+		isLOD: true,
+
+		copy: function ( source ) {
+
+			Object3D.prototype.copy.call( this, source, false );
+
+			var levels = source.levels;
+
+			for ( var i = 0, l = levels.length; i < l; i ++ ) {
+
+				var level = levels[ i ];
+
+				this.addLevel( level.object.clone(), level.distance );
+
+			}
+
+			return this;
+
+		},
+
+		addLevel: function ( object, distance ) {
+
+			if ( distance === undefined ) distance = 0;
+
+			distance = Math.abs( distance );
+
+			var levels = this.levels;
+
+			for ( var l = 0; l < levels.length; l ++ ) {
+
+				if ( distance < levels[ l ].distance ) {
+
+					break;
+
+				}
+
+			}
+
+			levels.splice( l, 0, { distance: distance, object: object } );
+
+			this.add( object );
+
+			return this;
+
+		},
+
+		getObjectForDistance: function ( distance ) {
+
+			var levels = this.levels;
+
+			for ( var i = 1, l = levels.length; i < l; i ++ ) {
+
+				if ( distance < levels[ i ].distance ) {
+
+					break;
+
+				}
+
+			}
+
+			return levels[ i - 1 ].object;
+
+		},
+
+		raycast: ( function () {
+
+			var matrixPosition = new Vector3();
+
+			return function raycast( raycaster, intersects ) {
+
+				matrixPosition.setFromMatrixPosition( this.matrixWorld );
+
+				var distance = raycaster.ray.origin.distanceTo( matrixPosition );
+
+				this.getObjectForDistance( distance ).raycast( raycaster, intersects );
+
+			};
+
+		}() ),
+
+		update: function () {
+
+			var v1 = new Vector3();
+			var v2 = new Vector3();
+
+			return function update( camera ) {
+
+				var levels = this.levels;
+
+				if ( levels.length > 1 ) {
+
+					v1.setFromMatrixPosition( camera.matrixWorld );
+					v2.setFromMatrixPosition( this.matrixWorld );
+
+					var distance = v1.distanceTo( v2 );
+
+					levels[ 0 ].object.visible = true;
+
+					for ( var i = 1, l = levels.length; i < l; i ++ ) {
+
+						if ( distance >= levels[ i ].distance ) {
+
+							levels[ i - 1 ].object.visible = false;
+							levels[ i ].object.visible = true;
+
+						} else {
+
+							break;
+
+						}
+
+					}
+
+					for ( ; i < l; i ++ ) {
+
+						levels[ i ].object.visible = false;
+
+					}
+
+				}
+
+			};
+
+		}(),
+
+		toJSON: function ( meta ) {
+
+			var data = Object3D.prototype.toJSON.call( this, meta );
+
+			data.object.levels = [];
+
+			var levels = this.levels;
+
+			for ( var i = 0, l = levels.length; i < l; i ++ ) {
+
+				var level = levels[ i ];
+
+				data.object.levels.push( {
+					object: level.object.uuid,
+					distance: level.distance
+				} );
+
+			}
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author ikerr / http://verold.com
+	 */
+
+	function SkinnedMesh( geometry, material ) {
+
+		if ( geometry && geometry.isGeometry ) {
+
+			console.error( 'THREE.SkinnedMesh no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );
+
+		}
+
+		Mesh.call( this, geometry, material );
+
+		this.type = 'SkinnedMesh';
+
+		this.bindMode = 'attached';
+		this.bindMatrix = new Matrix4();
+		this.bindMatrixInverse = new Matrix4();
+
+	}
+
+	SkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), {
+
+		constructor: SkinnedMesh,
+
+		isSkinnedMesh: true,
+
+		bind: function ( skeleton, bindMatrix ) {
+
+			this.skeleton = skeleton;
+
+			if ( bindMatrix === undefined ) {
+
+				this.updateMatrixWorld( true );
+
+				this.skeleton.calculateInverses();
+
+				bindMatrix = this.matrixWorld;
+
+			}
+
+			this.bindMatrix.copy( bindMatrix );
+			this.bindMatrixInverse.getInverse( bindMatrix );
+
+		},
+
+		pose: function () {
+
+			this.skeleton.pose();
+
+		},
+
+		normalizeSkinWeights: function () {
+
+			var vector = new Vector4();
+
+			var skinWeight = this.geometry.attributes.skinWeight;
+
+			for ( var i = 0, l = skinWeight.count; i < l; i ++ ) {
+
+				vector.x = skinWeight.getX( i );
+				vector.y = skinWeight.getY( i );
+				vector.z = skinWeight.getZ( i );
+				vector.w = skinWeight.getW( i );
+
+				var scale = 1.0 / vector.manhattanLength();
+
+				if ( scale !== Infinity ) {
+
+					vector.multiplyScalar( scale );
+
+				} else {
+
+					vector.set( 1, 0, 0, 0 ); // do something reasonable
+
+				}
+
+				skinWeight.setXYZW( i, vector.x, vector.y, vector.z, vector.w );
+
+			}
+
+		},
+
+		updateMatrixWorld: function ( force ) {
+
+			Mesh.prototype.updateMatrixWorld.call( this, force );
+
+			if ( this.bindMode === 'attached' ) {
+
+				this.bindMatrixInverse.getInverse( this.matrixWorld );
+
+			} else if ( this.bindMode === 'detached' ) {
+
+				this.bindMatrixInverse.getInverse( this.bindMatrix );
+
+			} else {
+
+				console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );
+
+			}
+
+		},
+
+		clone: function () {
+
+			return new this.constructor( this.geometry, this.material ).copy( this );
+
+		}
+
+	} );
+
+	/**
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author michael guerrero / http://realitymeltdown.com
+	 * @author ikerr / http://verold.com
+	 */
+
+	function Skeleton( bones, boneInverses ) {
+
+		// copy the bone array
+
+		bones = bones || [];
+
+		this.bones = bones.slice( 0 );
+		this.boneMatrices = new Float32Array( this.bones.length * 16 );
+
+		// use the supplied bone inverses or calculate the inverses
+
+		if ( boneInverses === undefined ) {
+
+			this.calculateInverses();
+
+		} else {
+
+			if ( this.bones.length === boneInverses.length ) {
+
+				this.boneInverses = boneInverses.slice( 0 );
+
+			} else {
+
+				console.warn( 'THREE.Skeleton boneInverses is the wrong length.' );
+
+				this.boneInverses = [];
+
+				for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
+
+					this.boneInverses.push( new Matrix4() );
+
+				}
+
+			}
+
+		}
+
+	}
+
+	Object.assign( Skeleton.prototype, {
+
+		calculateInverses: function () {
+
+			this.boneInverses = [];
+
+			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
+
+				var inverse = new Matrix4();
+
+				if ( this.bones[ i ] ) {
+
+					inverse.getInverse( this.bones[ i ].matrixWorld );
+
+				}
+
+				this.boneInverses.push( inverse );
+
+			}
+
+		},
+
+		pose: function () {
+
+			var bone, i, il;
+
+			// recover the bind-time world matrices
+
+			for ( i = 0, il = this.bones.length; i < il; i ++ ) {
+
+				bone = this.bones[ i ];
+
+				if ( bone ) {
+
+					bone.matrixWorld.getInverse( this.boneInverses[ i ] );
+
+				}
+
+			}
+
+			// compute the local matrices, positions, rotations and scales
+
+			for ( i = 0, il = this.bones.length; i < il; i ++ ) {
+
+				bone = this.bones[ i ];
+
+				if ( bone ) {
+
+					if ( bone.parent && bone.parent.isBone ) {
+
+						bone.matrix.getInverse( bone.parent.matrixWorld );
+						bone.matrix.multiply( bone.matrixWorld );
+
+					} else {
+
+						bone.matrix.copy( bone.matrixWorld );
+
+					}
+
+					bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );
+
+				}
+
+			}
+
+		},
+
+		update: ( function () {
+
+			var offsetMatrix = new Matrix4();
+			var identityMatrix = new Matrix4();
+
+			return function update() {
+
+				var bones = this.bones;
+				var boneInverses = this.boneInverses;
+				var boneMatrices = this.boneMatrices;
+				var boneTexture = this.boneTexture;
+
+				// flatten bone matrices to array
+
+				for ( var i = 0, il = bones.length; i < il; i ++ ) {
+
+					// compute the offset between the current and the original transform
+
+					var matrix = bones[ i ] ? bones[ i ].matrixWorld : identityMatrix;
+
+					offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );
+					offsetMatrix.toArray( boneMatrices, i * 16 );
+
+				}
+
+				if ( boneTexture !== undefined ) {
+
+					boneTexture.needsUpdate = true;
+
+				}
+
+			};
+
+		} )(),
+
+		clone: function () {
+
+			return new Skeleton( this.bones, this.boneInverses );
+
+		},
+
+		getBoneByName: function ( name ) {
+
+			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
+
+				var bone = this.bones[ i ];
+
+				if ( bone.name === name ) {
+
+					return bone;
+
+				}
+
+			}
+
+			return undefined;
+
+		}
+
+	} );
+
+	/**
+	 * @author mikael emtinger / http://gomo.se/
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author ikerr / http://verold.com
+	 */
+
+	function Bone() {
+
+		Object3D.call( this );
+
+		this.type = 'Bone';
+
+	}
+
+	Bone.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Bone,
+
+		isBone: true
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 *
+	 * parameters = {
+	 *  color: <hex>,
+	 *  opacity: <float>,
+	 *
+	 *  linewidth: <float>,
+	 *  linecap: "round",
+	 *  linejoin: "round"
+	 * }
+	 */
+
+	function LineBasicMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'LineBasicMaterial';
+
+		this.color = new Color( 0xffffff );
+
+		this.linewidth = 1;
+		this.linecap = 'round';
+		this.linejoin = 'round';
+
+		this.lights = false;
+
+		this.setValues( parameters );
+
+	}
+
+	LineBasicMaterial.prototype = Object.create( Material.prototype );
+	LineBasicMaterial.prototype.constructor = LineBasicMaterial;
+
+	LineBasicMaterial.prototype.isLineBasicMaterial = true;
+
+	LineBasicMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.color.copy( source.color );
+
+		this.linewidth = source.linewidth;
+		this.linecap = source.linecap;
+		this.linejoin = source.linejoin;
+
+		return this;
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function Line( geometry, material, mode ) {
+
+		if ( mode === 1 ) {
+
+			console.error( 'THREE.Line: parameter THREE.LinePieces no longer supported. Use THREE.LineSegments instead.' );
+
+		}
+
+		Object3D.call( this );
+
+		this.type = 'Line';
+
+		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
+		this.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } );
+
+	}
+
+	Line.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Line,
+
+		isLine: true,
+
+		computeLineDistances: ( function () {
+
+			var start = new Vector3();
+			var end = new Vector3();
+
+			return function computeLineDistances() {
+
+				var geometry = this.geometry;
+
+				if ( geometry.isBufferGeometry ) {
+
+					// we assume non-indexed geometry
+
+					if ( geometry.index === null ) {
+
+						var positionAttribute = geometry.attributes.position;
+						var lineDistances = [ 0 ];
+
+						for ( var i = 1, l = positionAttribute.count; i < l; i ++ ) {
+
+							start.fromBufferAttribute( positionAttribute, i - 1 );
+							end.fromBufferAttribute( positionAttribute, i );
+
+							lineDistances[ i ] = lineDistances[ i - 1 ];
+							lineDistances[ i ] += start.distanceTo( end );
+
+						}
+
+						geometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );
+
+					} else {
+
+						console.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );
+
+					}
+
+				} else if ( geometry.isGeometry ) {
+
+					var vertices = geometry.vertices;
+					var lineDistances = geometry.lineDistances;
+
+					lineDistances[ 0 ] = 0;
+
+					for ( var i = 1, l = vertices.length; i < l; i ++ ) {
+
+						lineDistances[ i ] = lineDistances[ i - 1 ];
+						lineDistances[ i ] += vertices[ i - 1 ].distanceTo( vertices[ i ] );
+
+					}
+
+				}
+
+				return this;
+
+			};
+
+		}() ),
+
+		raycast: ( function () {
+
+			var inverseMatrix = new Matrix4();
+			var ray = new Ray();
+			var sphere = new Sphere();
+
+			return function raycast( raycaster, intersects ) {
+
+				var precision = raycaster.linePrecision;
+
+				var geometry = this.geometry;
+				var matrixWorld = this.matrixWorld;
+
+				// Checking boundingSphere distance to ray
+
+				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
+
+				sphere.copy( geometry.boundingSphere );
+				sphere.applyMatrix4( matrixWorld );
+				sphere.radius += precision;
+
+				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
+
+				//
+
+				inverseMatrix.getInverse( matrixWorld );
+				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
+
+				var localPrecision = precision / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
+				var localPrecisionSq = localPrecision * localPrecision;
+
+				var vStart = new Vector3();
+				var vEnd = new Vector3();
+				var interSegment = new Vector3();
+				var interRay = new Vector3();
+				var step = ( this && this.isLineSegments ) ? 2 : 1;
+
+				if ( geometry.isBufferGeometry ) {
+
+					var index = geometry.index;
+					var attributes = geometry.attributes;
+					var positions = attributes.position.array;
+
+					if ( index !== null ) {
+
+						var indices = index.array;
+
+						for ( var i = 0, l = indices.length - 1; i < l; i += step ) {
+
+							var a = indices[ i ];
+							var b = indices[ i + 1 ];
+
+							vStart.fromArray( positions, a * 3 );
+							vEnd.fromArray( positions, b * 3 );
+
+							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );
+
+							if ( distSq > localPrecisionSq ) continue;
+
+							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
+
+							var distance = raycaster.ray.origin.distanceTo( interRay );
+
+							if ( distance < raycaster.near || distance > raycaster.far ) continue;
+
+							intersects.push( {
+
+								distance: distance,
+								// What do we want? intersection point on the ray or on the segment??
+								// point: raycaster.ray.at( distance ),
+								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
+								index: i,
+								face: null,
+								faceIndex: null,
+								object: this
+
+							} );
+
+						}
+
+					} else {
+
+						for ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {
+
+							vStart.fromArray( positions, 3 * i );
+							vEnd.fromArray( positions, 3 * i + 3 );
+
+							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );
+
+							if ( distSq > localPrecisionSq ) continue;
+
+							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
+
+							var distance = raycaster.ray.origin.distanceTo( interRay );
+
+							if ( distance < raycaster.near || distance > raycaster.far ) continue;
+
+							intersects.push( {
+
+								distance: distance,
+								// What do we want? intersection point on the ray or on the segment??
+								// point: raycaster.ray.at( distance ),
+								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
+								index: i,
+								face: null,
+								faceIndex: null,
+								object: this
+
+							} );
+
+						}
+
+					}
+
+				} else if ( geometry.isGeometry ) {
+
+					var vertices = geometry.vertices;
+					var nbVertices = vertices.length;
+
+					for ( var i = 0; i < nbVertices - 1; i += step ) {
+
+						var distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );
+
+						if ( distSq > localPrecisionSq ) continue;
+
+						interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
+
+						var distance = raycaster.ray.origin.distanceTo( interRay );
+
+						if ( distance < raycaster.near || distance > raycaster.far ) continue;
+
+						intersects.push( {
+
+							distance: distance,
+							// What do we want? intersection point on the ray or on the segment??
+							// point: raycaster.ray.at( distance ),
+							point: interSegment.clone().applyMatrix4( this.matrixWorld ),
+							index: i,
+							face: null,
+							faceIndex: null,
+							object: this
+
+						} );
+
+					}
+
+				}
+
+			};
+
+		}() ),
+
+		clone: function () {
+
+			return new this.constructor( this.geometry, this.material ).copy( this );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function LineSegments( geometry, material ) {
+
+		Line.call( this, geometry, material );
+
+		this.type = 'LineSegments';
+
+	}
+
+	LineSegments.prototype = Object.assign( Object.create( Line.prototype ), {
+
+		constructor: LineSegments,
+
+		isLineSegments: true,
+
+		computeLineDistances: ( function () {
+
+			var start = new Vector3();
+			var end = new Vector3();
+
+			return function computeLineDistances() {
+
+				var geometry = this.geometry;
+
+				if ( geometry.isBufferGeometry ) {
+
+					// we assume non-indexed geometry
+
+					if ( geometry.index === null ) {
+
+						var positionAttribute = geometry.attributes.position;
+						var lineDistances = [];
+
+						for ( var i = 0, l = positionAttribute.count; i < l; i += 2 ) {
+
+							start.fromBufferAttribute( positionAttribute, i );
+							end.fromBufferAttribute( positionAttribute, i + 1 );
+
+							lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
+							lineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );
+
+						}
+
+						geometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );
+
+					} else {
+
+						console.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );
+
+					}
+
+				} else if ( geometry.isGeometry ) {
+
+					var vertices = geometry.vertices;
+					var lineDistances = geometry.lineDistances;
+
+					for ( var i = 0, l = vertices.length; i < l; i += 2 ) {
+
+						start.copy( vertices[ i ] );
+						end.copy( vertices[ i + 1 ] );
+
+						lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
+						lineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );
+
+					}
+
+				}
+
+				return this;
+
+			};
+
+		}() )
+
+	} );
+
+	/**
+	 * @author mgreter / http://github.com/mgreter
+	 */
+
+	function LineLoop( geometry, material ) {
+
+		Line.call( this, geometry, material );
+
+		this.type = 'LineLoop';
+
+	}
+
+	LineLoop.prototype = Object.assign( Object.create( Line.prototype ), {
+
+		constructor: LineLoop,
+
+		isLineLoop: true,
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 *
+	 * parameters = {
+	 *  color: <hex>,
+	 *  opacity: <float>,
+	 *  map: new THREE.Texture( <Image> ),
+	 *
+	 *  size: <float>,
+	 *  sizeAttenuation: <bool>
+	 *
+	 *  morphTargets: <bool>
+	 * }
+	 */
+
+	function PointsMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'PointsMaterial';
+
+		this.color = new Color( 0xffffff );
+
+		this.map = null;
+
+		this.size = 1;
+		this.sizeAttenuation = true;
+
+		this.morphTargets = false;
+
+		this.lights = false;
+
+		this.setValues( parameters );
+
+	}
+
+	PointsMaterial.prototype = Object.create( Material.prototype );
+	PointsMaterial.prototype.constructor = PointsMaterial;
+
+	PointsMaterial.prototype.isPointsMaterial = true;
+
+	PointsMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.color.copy( source.color );
+
+		this.map = source.map;
+
+		this.size = source.size;
+		this.sizeAttenuation = source.sizeAttenuation;
+
+		this.morphTargets = source.morphTargets;
+
+		return this;
+
+	};
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function Points( geometry, material ) {
+
+		Object3D.call( this );
+
+		this.type = 'Points';
+
+		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
+		this.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } );
+
+	}
+
+	Points.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Points,
+
+		isPoints: true,
+
+		raycast: ( function () {
+
+			var inverseMatrix = new Matrix4();
+			var ray = new Ray();
+			var sphere = new Sphere();
+
+			return function raycast( raycaster, intersects ) {
+
+				var object = this;
+				var geometry = this.geometry;
+				var matrixWorld = this.matrixWorld;
+				var threshold = raycaster.params.Points.threshold;
+
+				// Checking boundingSphere distance to ray
+
+				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
+
+				sphere.copy( geometry.boundingSphere );
+				sphere.applyMatrix4( matrixWorld );
+				sphere.radius += threshold;
+
+				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
+
+				//
+
+				inverseMatrix.getInverse( matrixWorld );
+				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
+
+				var localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
+				var localThresholdSq = localThreshold * localThreshold;
+				var position = new Vector3();
+				var intersectPoint = new Vector3();
+
+				function testPoint( point, index ) {
+
+					var rayPointDistanceSq = ray.distanceSqToPoint( point );
+
+					if ( rayPointDistanceSq < localThresholdSq ) {
+
+						ray.closestPointToPoint( point, intersectPoint );
+						intersectPoint.applyMatrix4( matrixWorld );
+
+						var distance = raycaster.ray.origin.distanceTo( intersectPoint );
+
+						if ( distance < raycaster.near || distance > raycaster.far ) return;
+
+						intersects.push( {
+
+							distance: distance,
+							distanceToRay: Math.sqrt( rayPointDistanceSq ),
+							point: intersectPoint.clone(),
+							index: index,
+							face: null,
+							object: object
+
+						} );
+
+					}
+
+				}
+
+				if ( geometry.isBufferGeometry ) {
+
+					var index = geometry.index;
+					var attributes = geometry.attributes;
+					var positions = attributes.position.array;
+
+					if ( index !== null ) {
+
+						var indices = index.array;
+
+						for ( var i = 0, il = indices.length; i < il; i ++ ) {
+
+							var a = indices[ i ];
+
+							position.fromArray( positions, a * 3 );
+
+							testPoint( position, a );
+
+						}
+
+					} else {
+
+						for ( var i = 0, l = positions.length / 3; i < l; i ++ ) {
+
+							position.fromArray( positions, i * 3 );
+
+							testPoint( position, i );
+
+						}
+
+					}
+
+				} else {
+
+					var vertices = geometry.vertices;
+
+					for ( var i = 0, l = vertices.length; i < l; i ++ ) {
+
+						testPoint( vertices[ i ], i );
+
+					}
+
+				}
+
+			};
+
+		}() ),
+
+		clone: function () {
+
+			return new this.constructor( this.geometry, this.material ).copy( this );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {
+
+		Texture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
+
+		this.format = format !== undefined ? format : RGBFormat;
+
+		this.minFilter = minFilter !== undefined ? minFilter : LinearFilter;
+		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
+
+		this.generateMipmaps = false;
+
+	}
+
+	VideoTexture.prototype = Object.assign( Object.create( Texture.prototype ), {
+
+		constructor: VideoTexture,
+
+		isVideoTexture: true,
+
+		update: function () {
+
+			var video = this.image;
+
+			if ( video.readyState >= video.HAVE_CURRENT_DATA ) {
+
+				this.needsUpdate = true;
+
+			}
+
+		}
+
+	} );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {
+
+		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
+
+		this.image = { width: width, height: height };
+		this.mipmaps = mipmaps;
+
+		// no flipping for cube textures
+		// (also flipping doesn't work for compressed textures )
+
+		this.flipY = false;
+
+		// can't generate mipmaps for compressed textures
+		// mips must be embedded in DDS files
+
+		this.generateMipmaps = false;
+
+	}
+
+	CompressedTexture.prototype = Object.create( Texture.prototype );
+	CompressedTexture.prototype.constructor = CompressedTexture;
+
+	CompressedTexture.prototype.isCompressedTexture = true;
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {
+
+		Texture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
+
+		this.needsUpdate = true;
+
+	}
+
+	CanvasTexture.prototype = Object.create( Texture.prototype );
+	CanvasTexture.prototype.constructor = CanvasTexture;
+	CanvasTexture.prototype.isCanvasTexture = true;
+
+	/**
+	 * @author Matt DesLauriers / @mattdesl
+	 * @author atix / arthursilber.de
+	 */
+
+	function DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {
+
+		format = format !== undefined ? format : DepthFormat;
+
+		if ( format !== DepthFormat && format !== DepthStencilFormat ) {
+
+			throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );
+
+		}
+
+		if ( type === undefined && format === DepthFormat ) type = UnsignedShortType;
+		if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;
+
+		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
+
+		this.image = { width: width, height: height };
+
+		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
+		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
+
+		this.flipY = false;
+		this.generateMipmaps	= false;
+
+	}
+
+	DepthTexture.prototype = Object.create( Texture.prototype );
+	DepthTexture.prototype.constructor = DepthTexture;
+	DepthTexture.prototype.isDepthTexture = true;
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	function WireframeGeometry( geometry ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'WireframeGeometry';
+
+		// buffer
+
+		var vertices = [];
+
+		// helper variables
+
+		var i, j, l, o, ol;
+		var edge = [ 0, 0 ], edges = {}, e, edge1, edge2;
+		var key, keys = [ 'a', 'b', 'c' ];
+		var vertex;
+
+		// different logic for Geometry and BufferGeometry
+
+		if ( geometry && geometry.isGeometry ) {
+
+			// create a data structure that contains all edges without duplicates
+
+			var faces = geometry.faces;
+
+			for ( i = 0, l = faces.length; i < l; i ++ ) {
+
+				var face = faces[ i ];
+
+				for ( j = 0; j < 3; j ++ ) {
+
+					edge1 = face[ keys[ j ] ];
+					edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
+					edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
+					edge[ 1 ] = Math.max( edge1, edge2 );
+
+					key = edge[ 0 ] + ',' + edge[ 1 ];
+
+					if ( edges[ key ] === undefined ) {
+
+						edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };
+
+					}
+
+				}
+
+			}
+
+			// generate vertices
+
+			for ( key in edges ) {
+
+				e = edges[ key ];
+
+				vertex = geometry.vertices[ e.index1 ];
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				vertex = geometry.vertices[ e.index2 ];
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+			}
+
+		} else if ( geometry && geometry.isBufferGeometry ) {
+
+			var position, indices, groups;
+			var group, start, count;
+			var index1, index2;
+
+			vertex = new Vector3();
+
+			if ( geometry.index !== null ) {
+
+				// indexed BufferGeometry
+
+				position = geometry.attributes.position;
+				indices = geometry.index;
+				groups = geometry.groups;
+
+				if ( groups.length === 0 ) {
+
+					groups = [ { start: 0, count: indices.count, materialIndex: 0 } ];
+
+				}
+
+				// create a data structure that contains all eges without duplicates
+
+				for ( o = 0, ol = groups.length; o < ol; ++ o ) {
+
+					group = groups[ o ];
+
+					start = group.start;
+					count = group.count;
+
+					for ( i = start, l = ( start + count ); i < l; i += 3 ) {
+
+						for ( j = 0; j < 3; j ++ ) {
+
+							edge1 = indices.getX( i + j );
+							edge2 = indices.getX( i + ( j + 1 ) % 3 );
+							edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
+							edge[ 1 ] = Math.max( edge1, edge2 );
+
+							key = edge[ 0 ] + ',' + edge[ 1 ];
+
+							if ( edges[ key ] === undefined ) {
+
+								edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };
+
+							}
+
+						}
+
+					}
+
+				}
+
+				// generate vertices
+
+				for ( key in edges ) {
+
+					e = edges[ key ];
+
+					vertex.fromBufferAttribute( position, e.index1 );
+					vertices.push( vertex.x, vertex.y, vertex.z );
+
+					vertex.fromBufferAttribute( position, e.index2 );
+					vertices.push( vertex.x, vertex.y, vertex.z );
+
+				}
+
+			} else {
+
+				// non-indexed BufferGeometry
+
+				position = geometry.attributes.position;
+
+				for ( i = 0, l = ( position.count / 3 ); i < l; i ++ ) {
+
+					for ( j = 0; j < 3; j ++ ) {
+
+						// three edges per triangle, an edge is represented as (index1, index2)
+						// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)
+
+						index1 = 3 * i + j;
+						vertex.fromBufferAttribute( position, index1 );
+						vertices.push( vertex.x, vertex.y, vertex.z );
+
+						index2 = 3 * i + ( ( j + 1 ) % 3 );
+						vertex.fromBufferAttribute( position, index2 );
+						vertices.push( vertex.x, vertex.y, vertex.z );
+
+					}
+
+				}
+
+			}
+
+		}
+
+		// build geometry
+
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+
+	}
+
+	WireframeGeometry.prototype = Object.create( BufferGeometry.prototype );
+	WireframeGeometry.prototype.constructor = WireframeGeometry;
+
+	/**
+	 * @author zz85 / https://github.com/zz85
+	 * @author Mugen87 / https://github.com/Mugen87
+	 *
+	 * Parametric Surfaces Geometry
+	 * based on the brilliant article by @prideout http://prideout.net/blog/?p=44
+	 */
+
+	// ParametricGeometry
+
+	function ParametricGeometry( func, slices, stacks ) {
+
+		Geometry.call( this );
+
+		this.type = 'ParametricGeometry';
+
+		this.parameters = {
+			func: func,
+			slices: slices,
+			stacks: stacks
+		};
+
+		this.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) );
+		this.mergeVertices();
+
+	}
+
+	ParametricGeometry.prototype = Object.create( Geometry.prototype );
+	ParametricGeometry.prototype.constructor = ParametricGeometry;
+
+	// ParametricBufferGeometry
+
+	function ParametricBufferGeometry( func, slices, stacks ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'ParametricBufferGeometry';
+
+		this.parameters = {
+			func: func,
+			slices: slices,
+			stacks: stacks
+		};
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		var EPS = 0.00001;
+
+		var normal = new Vector3();
+
+		var p0 = new Vector3(), p1 = new Vector3();
+		var pu = new Vector3(), pv = new Vector3();
+
+		var i, j;
+
+		if ( func.length < 3 ) {
+
+			console.error( 'THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.' );
+
+		}
+
+		// generate vertices, normals and uvs
+
+		var sliceCount = slices + 1;
+
+		for ( i = 0; i <= stacks; i ++ ) {
+
+			var v = i / stacks;
+
+			for ( j = 0; j <= slices; j ++ ) {
+
+				var u = j / slices;
+
+				// vertex
+
+				func( u, v, p0 );
+				vertices.push( p0.x, p0.y, p0.z );
+
+				// normal
+
+				// approximate tangent vectors via finite differences
+
+				if ( u - EPS >= 0 ) {
+
+					func( u - EPS, v, p1 );
+					pu.subVectors( p0, p1 );
+
+				} else {
+
+					func( u + EPS, v, p1 );
+					pu.subVectors( p1, p0 );
+
+				}
+
+				if ( v - EPS >= 0 ) {
+
+					func( u, v - EPS, p1 );
+					pv.subVectors( p0, p1 );
+
+				} else {
+
+					func( u, v + EPS, p1 );
+					pv.subVectors( p1, p0 );
+
+				}
+
+				// cross product of tangent vectors returns surface normal
+
+				normal.crossVectors( pu, pv ).normalize();
+				normals.push( normal.x, normal.y, normal.z );
+
+				// uv
+
+				uvs.push( u, v );
+
+			}
+
+		}
+
+		// generate indices
+
+		for ( i = 0; i < stacks; i ++ ) {
+
+			for ( j = 0; j < slices; j ++ ) {
+
+				var a = i * sliceCount + j;
+				var b = i * sliceCount + j + 1;
+				var c = ( i + 1 ) * sliceCount + j + 1;
+				var d = ( i + 1 ) * sliceCount + j;
+
+				// faces one and two
+
+				indices.push( a, b, d );
+				indices.push( b, c, d );
+
+			}
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	}
+
+	ParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	ParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry;
+
+	/**
+	 * @author clockworkgeek / https://github.com/clockworkgeek
+	 * @author timothypratley / https://github.com/timothypratley
+	 * @author WestLangley / http://github.com/WestLangley
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// PolyhedronGeometry
+
+	function PolyhedronGeometry( vertices, indices, radius, detail ) {
+
+		Geometry.call( this );
+
+		this.type = 'PolyhedronGeometry';
+
+		this.parameters = {
+			vertices: vertices,
+			indices: indices,
+			radius: radius,
+			detail: detail
+		};
+
+		this.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) );
+		this.mergeVertices();
+
+	}
+
+	PolyhedronGeometry.prototype = Object.create( Geometry.prototype );
+	PolyhedronGeometry.prototype.constructor = PolyhedronGeometry;
+
+	// PolyhedronBufferGeometry
+
+	function PolyhedronBufferGeometry( vertices, indices, radius, detail ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'PolyhedronBufferGeometry';
+
+		this.parameters = {
+			vertices: vertices,
+			indices: indices,
+			radius: radius,
+			detail: detail
+		};
+
+		radius = radius || 1;
+		detail = detail || 0;
+
+		// default buffer data
+
+		var vertexBuffer = [];
+		var uvBuffer = [];
+
+		// the subdivision creates the vertex buffer data
+
+		subdivide( detail );
+
+		// all vertices should lie on a conceptual sphere with a given radius
+
+		appplyRadius( radius );
+
+		// finally, create the uv data
+
+		generateUVs();
+
+		// build non-indexed geometry
+
+		this.addAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );
+
+		if ( detail === 0 ) {
+
+			this.computeVertexNormals(); // flat normals
+
+		} else {
+
+			this.normalizeNormals(); // smooth normals
+
+		}
+
+		// helper functions
+
+		function subdivide( detail ) {
+
+			var a = new Vector3();
+			var b = new Vector3();
+			var c = new Vector3();
+
+			// iterate over all faces and apply a subdivison with the given detail value
+
+			for ( var i = 0; i < indices.length; i += 3 ) {
+
+				// get the vertices of the face
+
+				getVertexByIndex( indices[ i + 0 ], a );
+				getVertexByIndex( indices[ i + 1 ], b );
+				getVertexByIndex( indices[ i + 2 ], c );
+
+				// perform subdivision
+
+				subdivideFace( a, b, c, detail );
+
+			}
+
+		}
+
+		function subdivideFace( a, b, c, detail ) {
+
+			var cols = Math.pow( 2, detail );
+
+			// we use this multidimensional array as a data structure for creating the subdivision
+
+			var v = [];
+
+			var i, j;
+
+			// construct all of the vertices for this subdivision
+
+			for ( i = 0; i <= cols; i ++ ) {
+
+				v[ i ] = [];
+
+				var aj = a.clone().lerp( c, i / cols );
+				var bj = b.clone().lerp( c, i / cols );
+
+				var rows = cols - i;
+
+				for ( j = 0; j <= rows; j ++ ) {
+
+					if ( j === 0 && i === cols ) {
+
+						v[ i ][ j ] = aj;
+
+					} else {
+
+						v[ i ][ j ] = aj.clone().lerp( bj, j / rows );
+
+					}
+
+				}
+
+			}
+
+			// construct all of the faces
+
+			for ( i = 0; i < cols; i ++ ) {
+
+				for ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {
+
+					var k = Math.floor( j / 2 );
+
+					if ( j % 2 === 0 ) {
+
+						pushVertex( v[ i ][ k + 1 ] );
+						pushVertex( v[ i + 1 ][ k ] );
+						pushVertex( v[ i ][ k ] );
+
+					} else {
+
+						pushVertex( v[ i ][ k + 1 ] );
+						pushVertex( v[ i + 1 ][ k + 1 ] );
+						pushVertex( v[ i + 1 ][ k ] );
+
+					}
+
+				}
+
+			}
+
+		}
+
+		function appplyRadius( radius ) {
+
+			var vertex = new Vector3();
+
+			// iterate over the entire buffer and apply the radius to each vertex
+
+			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {
+
+				vertex.x = vertexBuffer[ i + 0 ];
+				vertex.y = vertexBuffer[ i + 1 ];
+				vertex.z = vertexBuffer[ i + 2 ];
+
+				vertex.normalize().multiplyScalar( radius );
+
+				vertexBuffer[ i + 0 ] = vertex.x;
+				vertexBuffer[ i + 1 ] = vertex.y;
+				vertexBuffer[ i + 2 ] = vertex.z;
+
+			}
+
+		}
+
+		function generateUVs() {
+
+			var vertex = new Vector3();
+
+			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {
+
+				vertex.x = vertexBuffer[ i + 0 ];
+				vertex.y = vertexBuffer[ i + 1 ];
+				vertex.z = vertexBuffer[ i + 2 ];
+
+				var u = azimuth( vertex ) / 2 / Math.PI + 0.5;
+				var v = inclination( vertex ) / Math.PI + 0.5;
+				uvBuffer.push( u, 1 - v );
+
+			}
+
+			correctUVs();
+
+			correctSeam();
+
+		}
+
+		function correctSeam() {
+
+			// handle case when face straddles the seam, see #3269
+
+			for ( var i = 0; i < uvBuffer.length; i += 6 ) {
+
+				// uv data of a single face
+
+				var x0 = uvBuffer[ i + 0 ];
+				var x1 = uvBuffer[ i + 2 ];
+				var x2 = uvBuffer[ i + 4 ];
+
+				var max = Math.max( x0, x1, x2 );
+				var min = Math.min( x0, x1, x2 );
+
+				// 0.9 is somewhat arbitrary
+
+				if ( max > 0.9 && min < 0.1 ) {
+
+					if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;
+					if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;
+					if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;
+
+				}
+
+			}
+
+		}
+
+		function pushVertex( vertex ) {
+
+			vertexBuffer.push( vertex.x, vertex.y, vertex.z );
+
+		}
+
+		function getVertexByIndex( index, vertex ) {
+
+			var stride = index * 3;
+
+			vertex.x = vertices[ stride + 0 ];
+			vertex.y = vertices[ stride + 1 ];
+			vertex.z = vertices[ stride + 2 ];
+
+		}
+
+		function correctUVs() {
+
+			var a = new Vector3();
+			var b = new Vector3();
+			var c = new Vector3();
+
+			var centroid = new Vector3();
+
+			var uvA = new Vector2();
+			var uvB = new Vector2();
+			var uvC = new Vector2();
+
+			for ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {
+
+				a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );
+				b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );
+				c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );
+
+				uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );
+				uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );
+				uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );
+
+				centroid.copy( a ).add( b ).add( c ).divideScalar( 3 );
+
+				var azi = azimuth( centroid );
+
+				correctUV( uvA, j + 0, a, azi );
+				correctUV( uvB, j + 2, b, azi );
+				correctUV( uvC, j + 4, c, azi );
+
+			}
+
+		}
+
+		function correctUV( uv, stride, vector, azimuth ) {
+
+			if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {
+
+				uvBuffer[ stride ] = uv.x - 1;
+
+			}
+
+			if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {
+
+				uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;
+
+			}
+
+		}
+
+		// Angle around the Y axis, counter-clockwise when looking from above.
+
+		function azimuth( vector ) {
+
+			return Math.atan2( vector.z, - vector.x );
+
+		}
+
+
+		// Angle above the XZ plane.
+
+		function inclination( vector ) {
+
+			return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );
+
+		}
+
+	}
+
+	PolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	PolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry;
+
+	/**
+	 * @author timothypratley / https://github.com/timothypratley
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// TetrahedronGeometry
+
+	function TetrahedronGeometry( radius, detail ) {
+
+		Geometry.call( this );
+
+		this.type = 'TetrahedronGeometry';
+
+		this.parameters = {
+			radius: radius,
+			detail: detail
+		};
+
+		this.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) );
+		this.mergeVertices();
+
+	}
+
+	TetrahedronGeometry.prototype = Object.create( Geometry.prototype );
+	TetrahedronGeometry.prototype.constructor = TetrahedronGeometry;
+
+	// TetrahedronBufferGeometry
+
+	function TetrahedronBufferGeometry( radius, detail ) {
+
+		var vertices = [
+			1, 1, 1, 	- 1, - 1, 1, 	- 1, 1, - 1, 	1, - 1, - 1
+		];
+
+		var indices = [
+			2, 1, 0, 	0, 3, 2,	1, 3, 0,	2, 3, 1
+		];
+
+		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
+
+		this.type = 'TetrahedronBufferGeometry';
+
+		this.parameters = {
+			radius: radius,
+			detail: detail
+		};
+
+	}
+
+	TetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
+	TetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry;
+
+	/**
+	 * @author timothypratley / https://github.com/timothypratley
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// OctahedronGeometry
+
+	function OctahedronGeometry( radius, detail ) {
+
+		Geometry.call( this );
+
+		this.type = 'OctahedronGeometry';
+
+		this.parameters = {
+			radius: radius,
+			detail: detail
+		};
+
+		this.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) );
+		this.mergeVertices();
+
+	}
+
+	OctahedronGeometry.prototype = Object.create( Geometry.prototype );
+	OctahedronGeometry.prototype.constructor = OctahedronGeometry;
+
+	// OctahedronBufferGeometry
+
+	function OctahedronBufferGeometry( radius, detail ) {
+
+		var vertices = [
+			1, 0, 0, 	- 1, 0, 0,	0, 1, 0,
+			0, - 1, 0, 	0, 0, 1,	0, 0, - 1
+		];
+
+		var indices = [
+			0, 2, 4,	0, 4, 3,	0, 3, 5,
+			0, 5, 2,	1, 2, 5,	1, 5, 3,
+			1, 3, 4,	1, 4, 2
+		];
+
+		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
+
+		this.type = 'OctahedronBufferGeometry';
+
+		this.parameters = {
+			radius: radius,
+			detail: detail
+		};
+
+	}
+
+	OctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
+	OctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry;
+
+	/**
+	 * @author timothypratley / https://github.com/timothypratley
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// IcosahedronGeometry
+
+	function IcosahedronGeometry( radius, detail ) {
+
+		Geometry.call( this );
+
+		this.type = 'IcosahedronGeometry';
+
+		this.parameters = {
+			radius: radius,
+			detail: detail
+		};
+
+		this.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );
+		this.mergeVertices();
+
+	}
+
+	IcosahedronGeometry.prototype = Object.create( Geometry.prototype );
+	IcosahedronGeometry.prototype.constructor = IcosahedronGeometry;
+
+	// IcosahedronBufferGeometry
+
+	function IcosahedronBufferGeometry( radius, detail ) {
+
+		var t = ( 1 + Math.sqrt( 5 ) ) / 2;
+
+		var vertices = [
+			- 1, t, 0, 	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
+			 0, - 1, t, 	0, 1, t,	0, - 1, - t, 	0, 1, - t,
+			 t, 0, - 1, 	t, 0, 1, 	- t, 0, - 1, 	- t, 0, 1
+		];
+
+		var indices = [
+			 0, 11, 5, 	0, 5, 1, 	0, 1, 7, 	0, 7, 10, 	0, 10, 11,
+			 1, 5, 9, 	5, 11, 4,	11, 10, 2,	10, 7, 6,	7, 1, 8,
+			 3, 9, 4, 	3, 4, 2,	3, 2, 6,	3, 6, 8,	3, 8, 9,
+			 4, 9, 5, 	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
+		];
+
+		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
+
+		this.type = 'IcosahedronBufferGeometry';
+
+		this.parameters = {
+			radius: radius,
+			detail: detail
+		};
+
+	}
+
+	IcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
+	IcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;
+
+	/**
+	 * @author Abe Pazos / https://hamoid.com
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// DodecahedronGeometry
+
+	function DodecahedronGeometry( radius, detail ) {
+
+		Geometry.call( this );
+
+		this.type = 'DodecahedronGeometry';
+
+		this.parameters = {
+			radius: radius,
+			detail: detail
+		};
+
+		this.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) );
+		this.mergeVertices();
+
+	}
+
+	DodecahedronGeometry.prototype = Object.create( Geometry.prototype );
+	DodecahedronGeometry.prototype.constructor = DodecahedronGeometry;
+
+	// DodecahedronBufferGeometry
+
+	function DodecahedronBufferGeometry( radius, detail ) {
+
+		var t = ( 1 + Math.sqrt( 5 ) ) / 2;
+		var r = 1 / t;
+
+		var vertices = [
+
+			// (±1, ±1, ±1)
+			- 1, - 1, - 1,	- 1, - 1, 1,
+			- 1, 1, - 1, - 1, 1, 1,
+			1, - 1, - 1, 1, - 1, 1,
+			1, 1, - 1, 1, 1, 1,
+
+			// (0, ±1/φ, ±φ)
+			 0, - r, - t, 0, - r, t,
+			 0, r, - t, 0, r, t,
+
+			// (±1/φ, ±φ, 0)
+			- r, - t, 0, - r, t, 0,
+			 r, - t, 0, r, t, 0,
+
+			// (±φ, 0, ±1/φ)
+			- t, 0, - r, t, 0, - r,
+			- t, 0, r, t, 0, r
+		];
+
+		var indices = [
+			3, 11, 7, 	3, 7, 15, 	3, 15, 13,
+			7, 19, 17, 	7, 17, 6, 	7, 6, 15,
+			17, 4, 8, 	17, 8, 10, 	17, 10, 6,
+			8, 0, 16, 	8, 16, 2, 	8, 2, 10,
+			0, 12, 1, 	0, 1, 18, 	0, 18, 16,
+			6, 10, 2, 	6, 2, 13, 	6, 13, 15,
+			2, 16, 18, 	2, 18, 3, 	2, 3, 13,
+			18, 1, 9, 	18, 9, 11, 	18, 11, 3,
+			4, 14, 12, 	4, 12, 0, 	4, 0, 8,
+			11, 9, 5, 	11, 5, 19, 	11, 19, 7,
+			19, 5, 14, 	19, 14, 4, 	19, 4, 17,
+			1, 12, 14, 	1, 14, 5, 	1, 5, 9
+		];
+
+		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
+
+		this.type = 'DodecahedronBufferGeometry';
+
+		this.parameters = {
+			radius: radius,
+			detail: detail
+		};
+
+	}
+
+	DodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
+	DodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry;
+
+	/**
+	 * @author oosmoxiecode / https://github.com/oosmoxiecode
+	 * @author WestLangley / https://github.com/WestLangley
+	 * @author zz85 / https://github.com/zz85
+	 * @author miningold / https://github.com/miningold
+	 * @author jonobr1 / https://github.com/jonobr1
+	 * @author Mugen87 / https://github.com/Mugen87
+	 *
+	 */
+
+	// TubeGeometry
+
+	function TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {
+
+		Geometry.call( this );
+
+		this.type = 'TubeGeometry';
+
+		this.parameters = {
+			path: path,
+			tubularSegments: tubularSegments,
+			radius: radius,
+			radialSegments: radialSegments,
+			closed: closed
+		};
+
+		if ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );
+
+		var bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );
+
+		// expose internals
+
+		this.tangents = bufferGeometry.tangents;
+		this.normals = bufferGeometry.normals;
+		this.binormals = bufferGeometry.binormals;
+
+		// create geometry
+
+		this.fromBufferGeometry( bufferGeometry );
+		this.mergeVertices();
+
+	}
+
+	TubeGeometry.prototype = Object.create( Geometry.prototype );
+	TubeGeometry.prototype.constructor = TubeGeometry;
+
+	// TubeBufferGeometry
+
+	function TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'TubeBufferGeometry';
+
+		this.parameters = {
+			path: path,
+			tubularSegments: tubularSegments,
+			radius: radius,
+			radialSegments: radialSegments,
+			closed: closed
+		};
+
+		tubularSegments = tubularSegments || 64;
+		radius = radius || 1;
+		radialSegments = radialSegments || 8;
+		closed = closed || false;
+
+		var frames = path.computeFrenetFrames( tubularSegments, closed );
+
+		// expose internals
+
+		this.tangents = frames.tangents;
+		this.normals = frames.normals;
+		this.binormals = frames.binormals;
+
+		// helper variables
+
+		var vertex = new Vector3();
+		var normal = new Vector3();
+		var uv = new Vector2();
+		var P = new Vector3();
+
+		var i, j;
+
+		// buffer
+
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+		var indices = [];
+
+		// create buffer data
+
+		generateBufferData();
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+		// functions
+
+		function generateBufferData() {
+
+			for ( i = 0; i < tubularSegments; i ++ ) {
+
+				generateSegment( i );
+
+			}
+
+			// if the geometry is not closed, generate the last row of vertices and normals
+			// at the regular position on the given path
+			//
+			// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)
+
+			generateSegment( ( closed === false ) ? tubularSegments : 0 );
+
+			// uvs are generated in a separate function.
+			// this makes it easy compute correct values for closed geometries
+
+			generateUVs();
+
+			// finally create faces
+
+			generateIndices();
+
+		}
+
+		function generateSegment( i ) {
+
+			// we use getPointAt to sample evenly distributed points from the given path
+
+			P = path.getPointAt( i / tubularSegments, P );
+
+			// retrieve corresponding normal and binormal
+
+			var N = frames.normals[ i ];
+			var B = frames.binormals[ i ];
+
+			// generate normals and vertices for the current segment
+
+			for ( j = 0; j <= radialSegments; j ++ ) {
+
+				var v = j / radialSegments * Math.PI * 2;
+
+				var sin = Math.sin( v );
+				var cos = - Math.cos( v );
+
+				// normal
+
+				normal.x = ( cos * N.x + sin * B.x );
+				normal.y = ( cos * N.y + sin * B.y );
+				normal.z = ( cos * N.z + sin * B.z );
+				normal.normalize();
+
+				normals.push( normal.x, normal.y, normal.z );
+
+				// vertex
+
+				vertex.x = P.x + radius * normal.x;
+				vertex.y = P.y + radius * normal.y;
+				vertex.z = P.z + radius * normal.z;
+
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+			}
+
+		}
+
+		function generateIndices() {
+
+			for ( j = 1; j <= tubularSegments; j ++ ) {
+
+				for ( i = 1; i <= radialSegments; i ++ ) {
+
+					var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
+					var b = ( radialSegments + 1 ) * j + ( i - 1 );
+					var c = ( radialSegments + 1 ) * j + i;
+					var d = ( radialSegments + 1 ) * ( j - 1 ) + i;
+
+					// faces
+
+					indices.push( a, b, d );
+					indices.push( b, c, d );
+
+				}
+
+			}
+
+		}
+
+		function generateUVs() {
+
+			for ( i = 0; i <= tubularSegments; i ++ ) {
+
+				for ( j = 0; j <= radialSegments; j ++ ) {
+
+					uv.x = i / tubularSegments;
+					uv.y = j / radialSegments;
+
+					uvs.push( uv.x, uv.y );
+
+				}
+
+			}
+
+		}
+
+	}
+
+	TubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	TubeBufferGeometry.prototype.constructor = TubeBufferGeometry;
+
+	TubeBufferGeometry.prototype.toJSON = function () {
+
+		var data = BufferGeometry.prototype.toJSON.call( this );
+
+		data.path = this.parameters.path.toJSON();
+
+		return data;
+
+	};
+
+	/**
+	 * @author oosmoxiecode
+	 * @author Mugen87 / https://github.com/Mugen87
+	 *
+	 * based on http://www.blackpawn.com/texts/pqtorus/
+	 */
+
+	// TorusKnotGeometry
+
+	function TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) {
+
+		Geometry.call( this );
+
+		this.type = 'TorusKnotGeometry';
+
+		this.parameters = {
+			radius: radius,
+			tube: tube,
+			tubularSegments: tubularSegments,
+			radialSegments: radialSegments,
+			p: p,
+			q: q
+		};
+
+		if ( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' );
+
+		this.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) );
+		this.mergeVertices();
+
+	}
+
+	TorusKnotGeometry.prototype = Object.create( Geometry.prototype );
+	TorusKnotGeometry.prototype.constructor = TorusKnotGeometry;
+
+	// TorusKnotBufferGeometry
+
+	function TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'TorusKnotBufferGeometry';
+
+		this.parameters = {
+			radius: radius,
+			tube: tube,
+			tubularSegments: tubularSegments,
+			radialSegments: radialSegments,
+			p: p,
+			q: q
+		};
+
+		radius = radius || 1;
+		tube = tube || 0.4;
+		tubularSegments = Math.floor( tubularSegments ) || 64;
+		radialSegments = Math.floor( radialSegments ) || 8;
+		p = p || 2;
+		q = q || 3;
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		// helper variables
+
+		var i, j;
+
+		var vertex = new Vector3();
+		var normal = new Vector3();
+
+		var P1 = new Vector3();
+		var P2 = new Vector3();
+
+		var B = new Vector3();
+		var T = new Vector3();
+		var N = new Vector3();
+
+		// generate vertices, normals and uvs
+
+		for ( i = 0; i <= tubularSegments; ++ i ) {
+
+			// the radian "u" is used to calculate the position on the torus curve of the current tubular segement
+
+			var u = i / tubularSegments * p * Math.PI * 2;
+
+			// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
+			// these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions
+
+			calculatePositionOnCurve( u, p, q, radius, P1 );
+			calculatePositionOnCurve( u + 0.01, p, q, radius, P2 );
+
+			// calculate orthonormal basis
+
+			T.subVectors( P2, P1 );
+			N.addVectors( P2, P1 );
+			B.crossVectors( T, N );
+			N.crossVectors( B, T );
+
+			// normalize B, N. T can be ignored, we don't use it
+
+			B.normalize();
+			N.normalize();
+
+			for ( j = 0; j <= radialSegments; ++ j ) {
+
+				// now calculate the vertices. they are nothing more than an extrusion of the torus curve.
+				// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.
+
+				var v = j / radialSegments * Math.PI * 2;
+				var cx = - tube * Math.cos( v );
+				var cy = tube * Math.sin( v );
+
+				// now calculate the final vertex position.
+				// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve
+
+				vertex.x = P1.x + ( cx * N.x + cy * B.x );
+				vertex.y = P1.y + ( cx * N.y + cy * B.y );
+				vertex.z = P1.z + ( cx * N.z + cy * B.z );
+
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)
+
+				normal.subVectors( vertex, P1 ).normalize();
+
+				normals.push( normal.x, normal.y, normal.z );
+
+				// uv
+
+				uvs.push( i / tubularSegments );
+				uvs.push( j / radialSegments );
+
+			}
+
+		}
+
+		// generate indices
+
+		for ( j = 1; j <= tubularSegments; j ++ ) {
+
+			for ( i = 1; i <= radialSegments; i ++ ) {
+
+				// indices
+
+				var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
+				var b = ( radialSegments + 1 ) * j + ( i - 1 );
+				var c = ( radialSegments + 1 ) * j + i;
+				var d = ( radialSegments + 1 ) * ( j - 1 ) + i;
+
+				// faces
+
+				indices.push( a, b, d );
+				indices.push( b, c, d );
+
+			}
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+		// this function calculates the current position on the torus curve
+
+		function calculatePositionOnCurve( u, p, q, radius, position ) {
+
+			var cu = Math.cos( u );
+			var su = Math.sin( u );
+			var quOverP = q / p * u;
+			var cs = Math.cos( quOverP );
+
+			position.x = radius * ( 2 + cs ) * 0.5 * cu;
+			position.y = radius * ( 2 + cs ) * su * 0.5;
+			position.z = radius * Math.sin( quOverP ) * 0.5;
+
+		}
+
+	}
+
+	TorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	TorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry;
+
+	/**
+	 * @author oosmoxiecode
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// TorusGeometry
+
+	function TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) {
+
+		Geometry.call( this );
+
+		this.type = 'TorusGeometry';
+
+		this.parameters = {
+			radius: radius,
+			tube: tube,
+			radialSegments: radialSegments,
+			tubularSegments: tubularSegments,
+			arc: arc
+		};
+
+		this.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) );
+		this.mergeVertices();
+
+	}
+
+	TorusGeometry.prototype = Object.create( Geometry.prototype );
+	TorusGeometry.prototype.constructor = TorusGeometry;
+
+	// TorusBufferGeometry
+
+	function TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'TorusBufferGeometry';
+
+		this.parameters = {
+			radius: radius,
+			tube: tube,
+			radialSegments: radialSegments,
+			tubularSegments: tubularSegments,
+			arc: arc
+		};
+
+		radius = radius || 1;
+		tube = tube || 0.4;
+		radialSegments = Math.floor( radialSegments ) || 8;
+		tubularSegments = Math.floor( tubularSegments ) || 6;
+		arc = arc || Math.PI * 2;
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		// helper variables
+
+		var center = new Vector3();
+		var vertex = new Vector3();
+		var normal = new Vector3();
+
+		var j, i;
+
+		// generate vertices, normals and uvs
+
+		for ( j = 0; j <= radialSegments; j ++ ) {
+
+			for ( i = 0; i <= tubularSegments; i ++ ) {
+
+				var u = i / tubularSegments * arc;
+				var v = j / radialSegments * Math.PI * 2;
+
+				// vertex
+
+				vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );
+				vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );
+				vertex.z = tube * Math.sin( v );
+
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				// normal
+
+				center.x = radius * Math.cos( u );
+				center.y = radius * Math.sin( u );
+				normal.subVectors( vertex, center ).normalize();
+
+				normals.push( normal.x, normal.y, normal.z );
+
+				// uv
+
+				uvs.push( i / tubularSegments );
+				uvs.push( j / radialSegments );
+
+			}
+
+		}
+
+		// generate indices
+
+		for ( j = 1; j <= radialSegments; j ++ ) {
+
+			for ( i = 1; i <= tubularSegments; i ++ ) {
+
+				// indices
+
+				var a = ( tubularSegments + 1 ) * j + i - 1;
+				var b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;
+				var c = ( tubularSegments + 1 ) * ( j - 1 ) + i;
+				var d = ( tubularSegments + 1 ) * j + i;
+
+				// faces
+
+				indices.push( a, b, d );
+				indices.push( b, c, d );
+
+			}
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	}
+
+	TorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	TorusBufferGeometry.prototype.constructor = TorusBufferGeometry;
+
+	/**
+	 * @author Mugen87 / https://github.com/Mugen87
+	 * Port from https://github.com/mapbox/earcut (v2.1.2)
+	 */
+
+	var Earcut = {
+
+		triangulate: function ( data, holeIndices, dim ) {
+
+			dim = dim || 2;
+
+			var hasHoles = holeIndices && holeIndices.length,
+				outerLen = hasHoles ? holeIndices[ 0 ] * dim : data.length,
+				outerNode = linkedList( data, 0, outerLen, dim, true ),
+				triangles = [];
+
+			if ( ! outerNode ) return triangles;
+
+			var minX, minY, maxX, maxY, x, y, invSize;
+
+			if ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim );
+
+			// if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
+
+			if ( data.length > 80 * dim ) {
+
+				minX = maxX = data[ 0 ];
+				minY = maxY = data[ 1 ];
+
+				for ( var i = dim; i < outerLen; i += dim ) {
+
+					x = data[ i ];
+					y = data[ i + 1 ];
+					if ( x < minX ) minX = x;
+					if ( y < minY ) minY = y;
+					if ( x > maxX ) maxX = x;
+					if ( y > maxY ) maxY = y;
+
+				}
+
+				// minX, minY and invSize are later used to transform coords into integers for z-order calculation
+
+				invSize = Math.max( maxX - minX, maxY - minY );
+				invSize = invSize !== 0 ? 1 / invSize : 0;
+
+			}
+
+			earcutLinked( outerNode, triangles, dim, minX, minY, invSize );
+
+			return triangles;
+
+		}
+
+	};
+
+	// create a circular doubly linked list from polygon points in the specified winding order
+
+	function linkedList( data, start, end, dim, clockwise ) {
+
+		var i, last;
+
+		if ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) {
+
+			for ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );
+
+		} else {
+
+			for ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );
+
+		}
+
+		if ( last && equals( last, last.next ) ) {
+
+			removeNode( last );
+			last = last.next;
+
+		}
+
+		return last;
+
+	}
+
+	// eliminate colinear or duplicate points
+
+	function filterPoints( start, end ) {
+
+		if ( ! start ) return start;
+		if ( ! end ) end = start;
+
+		var p = start, again;
+
+		do {
+
+			again = false;
+
+			if ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) {
+
+				removeNode( p );
+				p = end = p.prev;
+				if ( p === p.next ) break;
+				again = true;
+
+			} else {
+
+				p = p.next;
+
+			}
+
+		} while ( again || p !== end );
+
+		return end;
+
+	}
+
+	// main ear slicing loop which triangulates a polygon (given as a linked list)
+
+	function earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) {
+
+		if ( ! ear ) return;
+
+		// interlink polygon nodes in z-order
+
+		if ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize );
+
+		var stop = ear, prev, next;
+
+		// iterate through ears, slicing them one by one
+
+		while ( ear.prev !== ear.next ) {
+
+			prev = ear.prev;
+			next = ear.next;
+
+			if ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) {
+
+				// cut off the triangle
+				triangles.push( prev.i / dim );
+				triangles.push( ear.i / dim );
+				triangles.push( next.i / dim );
+
+				removeNode( ear );
+
+				// skipping the next vertice leads to less sliver triangles
+				ear = next.next;
+				stop = next.next;
+
+				continue;
+
+			}
+
+			ear = next;
+
+			// if we looped through the whole remaining polygon and can't find any more ears
+
+			if ( ear === stop ) {
+
+				// try filtering points and slicing again
+
+				if ( ! pass ) {
+
+					earcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 );
+
+					// if this didn't work, try curing all small self-intersections locally
+
+				} else if ( pass === 1 ) {
+
+					ear = cureLocalIntersections( ear, triangles, dim );
+					earcutLinked( ear, triangles, dim, minX, minY, invSize, 2 );
+
+					// as a last resort, try splitting the remaining polygon into two
+
+				} else if ( pass === 2 ) {
+
+					splitEarcut( ear, triangles, dim, minX, minY, invSize );
+
+				}
+
+				break;
+
+			}
+
+		}
+
+	}
+
+	// check whether a polygon node forms a valid ear with adjacent nodes
+
+	function isEar( ear ) {
+
+		var a = ear.prev,
+			b = ear,
+			c = ear.next;
+
+		if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear
+
+		// now make sure we don't have other points inside the potential ear
+		var p = ear.next.next;
+
+		while ( p !== ear.prev ) {
+
+			if ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && area( p.prev, p, p.next ) >= 0 ) {
+
+				return false;
+
+			}
+
+			p = p.next;
+
+		}
+
+		return true;
+
+	}
+
+	function isEarHashed( ear, minX, minY, invSize ) {
+
+		var a = ear.prev,
+			b = ear,
+			c = ear.next;
+
+		if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear
+
+		// triangle bbox; min & max are calculated like this for speed
+
+		var minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ),
+			minTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ),
+			maxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ),
+			maxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y );
+
+		// z-order range for the current triangle bbox;
+
+		var minZ = zOrder( minTX, minTY, minX, minY, invSize ),
+			maxZ = zOrder( maxTX, maxTY, minX, minY, invSize );
+
+		// first look for points inside the triangle in increasing z-order
+
+		var p = ear.nextZ;
+
+		while ( p && p.z <= maxZ ) {
+
+			if ( p !== ear.prev && p !== ear.next &&
+					pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
+					area( p.prev, p, p.next ) >= 0 ) return false;
+			p = p.nextZ;
+
+		}
+
+		// then look for points in decreasing z-order
+
+		p = ear.prevZ;
+
+		while ( p && p.z >= minZ ) {
+
+			if ( p !== ear.prev && p !== ear.next &&
+					pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
+					area( p.prev, p, p.next ) >= 0 ) return false;
+
+			p = p.prevZ;
+
+		}
+
+		return true;
+
+	}
+
+	// go through all polygon nodes and cure small local self-intersections
+
+	function cureLocalIntersections( start, triangles, dim ) {
+
+		var p = start;
+
+		do {
+
+			var a = p.prev, b = p.next.next;
+
+			if ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) {
+
+				triangles.push( a.i / dim );
+				triangles.push( p.i / dim );
+				triangles.push( b.i / dim );
+
+				// remove two nodes involved
+
+				removeNode( p );
+				removeNode( p.next );
+
+				p = start = b;
+
+			}
+
+			p = p.next;
+
+		} while ( p !== start );
+
+		return p;
+
+	}
+
+	// try splitting polygon into two and triangulate them independently
+
+	function splitEarcut( start, triangles, dim, minX, minY, invSize ) {
+
+		// look for a valid diagonal that divides the polygon into two
+
+		var a = start;
+
+		do {
+
+			var b = a.next.next;
+
+			while ( b !== a.prev ) {
+
+				if ( a.i !== b.i && isValidDiagonal( a, b ) ) {
+
+					// split the polygon in two by the diagonal
+
+					var c = splitPolygon( a, b );
+
+					// filter colinear points around the cuts
+
+					a = filterPoints( a, a.next );
+					c = filterPoints( c, c.next );
+
+					// run earcut on each half
+
+					earcutLinked( a, triangles, dim, minX, minY, invSize );
+					earcutLinked( c, triangles, dim, minX, minY, invSize );
+					return;
+
+				}
+
+				b = b.next;
+
+			}
+
+			a = a.next;
+
+		} while ( a !== start );
+
+	}
+
+	// link every hole into the outer loop, producing a single-ring polygon without holes
+
+	function eliminateHoles( data, holeIndices, outerNode, dim ) {
+
+		var queue = [], i, len, start, end, list;
+
+		for ( i = 0, len = holeIndices.length; i < len; i ++ ) {
+
+			start = holeIndices[ i ] * dim;
+			end = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length;
+			list = linkedList( data, start, end, dim, false );
+			if ( list === list.next ) list.steiner = true;
+			queue.push( getLeftmost( list ) );
+
+		}
+
+		queue.sort( compareX );
+
+		// process holes from left to right
+
+		for ( i = 0; i < queue.length; i ++ ) {
+
+			eliminateHole( queue[ i ], outerNode );
+			outerNode = filterPoints( outerNode, outerNode.next );
+
+		}
+
+		return outerNode;
+
+	}
+
+	function compareX( a, b ) {
+
+		return a.x - b.x;
+
+	}
+
+	// find a bridge between vertices that connects hole with an outer ring and and link it
+
+	function eliminateHole( hole, outerNode ) {
+
+		outerNode = findHoleBridge( hole, outerNode );
+
+		if ( outerNode ) {
+
+			var b = splitPolygon( outerNode, hole );
+
+			filterPoints( b, b.next );
+
+		}
+
+	}
+
+	// David Eberly's algorithm for finding a bridge between hole and outer polygon
+
+	function findHoleBridge( hole, outerNode ) {
+
+		var p = outerNode,
+			hx = hole.x,
+			hy = hole.y,
+			qx = - Infinity,
+			m;
+
+		// find a segment intersected by a ray from the hole's leftmost point to the left;
+		// segment's endpoint with lesser x will be potential connection point
+
+		do {
+
+			if ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) {
+
+				var x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y );
+
+				if ( x <= hx && x > qx ) {
+
+					qx = x;
+
+					if ( x === hx ) {
+
+						if ( hy === p.y ) return p;
+						if ( hy === p.next.y ) return p.next;
+
+					}
+
+					m = p.x < p.next.x ? p : p.next;
+
+				}
+
+			}
+
+			p = p.next;
+
+		} while ( p !== outerNode );
+
+		if ( ! m ) return null;
+
+		if ( hx === qx ) return m.prev; // hole touches outer segment; pick lower endpoint
+
+		// look for points inside the triangle of hole point, segment intersection and endpoint;
+		// if there are no points found, we have a valid connection;
+		// otherwise choose the point of the minimum angle with the ray as connection point
+
+		var stop = m,
+			mx = m.x,
+			my = m.y,
+			tanMin = Infinity,
+			tan;
+
+		p = m.next;
+
+		while ( p !== stop ) {
+
+			if ( hx >= p.x && p.x >= mx && hx !== p.x &&
+							pointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) {
+
+				tan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential
+
+				if ( ( tan < tanMin || ( tan === tanMin && p.x > m.x ) ) && locallyInside( p, hole ) ) {
+
+					m = p;
+					tanMin = tan;
+
+				}
+
+			}
+
+			p = p.next;
+
+		}
+
+		return m;
+
+	}
+
+	// interlink polygon nodes in z-order
+
+	function indexCurve( start, minX, minY, invSize ) {
+
+		var p = start;
+
+		do {
+
+			if ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize );
+			p.prevZ = p.prev;
+			p.nextZ = p.next;
+			p = p.next;
+
+		} while ( p !== start );
+
+		p.prevZ.nextZ = null;
+		p.prevZ = null;
+
+		sortLinked( p );
+
+	}
+
+	// Simon Tatham's linked list merge sort algorithm
+	// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
+
+	function sortLinked( list ) {
+
+		var i, p, q, e, tail, numMerges, pSize, qSize, inSize = 1;
+
+		do {
+
+			p = list;
+			list = null;
+			tail = null;
+			numMerges = 0;
+
+			while ( p ) {
+
+				numMerges ++;
+				q = p;
+				pSize = 0;
+
+				for ( i = 0; i < inSize; i ++ ) {
+
+					pSize ++;
+					q = q.nextZ;
+					if ( ! q ) break;
+
+				}
+
+				qSize = inSize;
+
+				while ( pSize > 0 || ( qSize > 0 && q ) ) {
+
+					if ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) {
+
+						e = p;
+						p = p.nextZ;
+						pSize --;
+
+					} else {
+
+						e = q;
+						q = q.nextZ;
+						qSize --;
+
+					}
+
+					if ( tail ) tail.nextZ = e;
+					else list = e;
+
+					e.prevZ = tail;
+					tail = e;
+
+				}
+
+				p = q;
+
+			}
+
+			tail.nextZ = null;
+			inSize *= 2;
+
+		} while ( numMerges > 1 );
+
+		return list;
+
+	}
+
+	// z-order of a point given coords and inverse of the longer side of data bbox
+
+	function zOrder( x, y, minX, minY, invSize ) {
+
+		// coords are transformed into non-negative 15-bit integer range
+
+		x = 32767 * ( x - minX ) * invSize;
+		y = 32767 * ( y - minY ) * invSize;
+
+		x = ( x | ( x << 8 ) ) & 0x00FF00FF;
+		x = ( x | ( x << 4 ) ) & 0x0F0F0F0F;
+		x = ( x | ( x << 2 ) ) & 0x33333333;
+		x = ( x | ( x << 1 ) ) & 0x55555555;
+
+		y = ( y | ( y << 8 ) ) & 0x00FF00FF;
+		y = ( y | ( y << 4 ) ) & 0x0F0F0F0F;
+		y = ( y | ( y << 2 ) ) & 0x33333333;
+		y = ( y | ( y << 1 ) ) & 0x55555555;
+
+		return x | ( y << 1 );
+
+	}
+
+	// find the leftmost node of a polygon ring
+
+	function getLeftmost( start ) {
+
+		var p = start, leftmost = start;
+
+		do {
+
+			if ( p.x < leftmost.x ) leftmost = p;
+			p = p.next;
+
+		} while ( p !== start );
+
+		return leftmost;
+
+	}
+
+	// check if a point lies within a convex triangle
+
+	function pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) {
+
+		return ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 &&
+		 ( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 &&
+		 ( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0;
+
+	}
+
+	// check if a diagonal between two polygon nodes is valid (lies in polygon interior)
+
+	function isValidDiagonal( a, b ) {
+
+		return a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) &&
+			locallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b );
+
+	}
+
+	// signed area of a triangle
+
+	function area( p, q, r ) {
+
+		return ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y );
+
+	}
+
+	// check if two points are equal
+
+	function equals( p1, p2 ) {
+
+		return p1.x === p2.x && p1.y === p2.y;
+
+	}
+
+	// check if two segments intersect
+
+	function intersects( p1, q1, p2, q2 ) {
+
+		if ( ( equals( p1, q1 ) && equals( p2, q2 ) ) ||
+				( equals( p1, q2 ) && equals( p2, q1 ) ) ) return true;
+
+		return area( p1, q1, p2 ) > 0 !== area( p1, q1, q2 ) > 0 &&
+					 area( p2, q2, p1 ) > 0 !== area( p2, q2, q1 ) > 0;
+
+	}
+
+	// check if a polygon diagonal intersects any polygon segments
+
+	function intersectsPolygon( a, b ) {
+
+		var p = a;
+
+		do {
+
+			if ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&
+							intersects( p, p.next, a, b ) ) {
+
+				return true;
+
+			}
+
+			p = p.next;
+
+		} while ( p !== a );
+
+		return false;
+
+	}
+
+	// check if a polygon diagonal is locally inside the polygon
+
+	function locallyInside( a, b ) {
+
+		return area( a.prev, a, a.next ) < 0 ?
+			area( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 :
+			area( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0;
+
+	}
+
+	// check if the middle point of a polygon diagonal is inside the polygon
+
+	function middleInside( a, b ) {
+
+		var p = a,
+			inside = false,
+			px = ( a.x + b.x ) / 2,
+			py = ( a.y + b.y ) / 2;
+
+		do {
+
+			if ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y &&
+							( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) ) {
+
+				inside = ! inside;
+
+			}
+
+			p = p.next;
+
+		} while ( p !== a );
+
+		return inside;
+
+	}
+
+	// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
+	// if one belongs to the outer ring and another to a hole, it merges it into a single ring
+
+	function splitPolygon( a, b ) {
+
+		var a2 = new Node( a.i, a.x, a.y ),
+			b2 = new Node( b.i, b.x, b.y ),
+			an = a.next,
+			bp = b.prev;
+
+		a.next = b;
+		b.prev = a;
+
+		a2.next = an;
+		an.prev = a2;
+
+		b2.next = a2;
+		a2.prev = b2;
+
+		bp.next = b2;
+		b2.prev = bp;
+
+		return b2;
+
+	}
+
+	// create a node and optionally link it with previous one (in a circular doubly linked list)
+
+	function insertNode( i, x, y, last ) {
+
+		var p = new Node( i, x, y );
+
+		if ( ! last ) {
+
+			p.prev = p;
+			p.next = p;
+
+		} else {
+
+			p.next = last.next;
+			p.prev = last;
+			last.next.prev = p;
+			last.next = p;
+
+		}
+
+		return p;
+
+	}
+
+	function removeNode( p ) {
+
+		p.next.prev = p.prev;
+		p.prev.next = p.next;
+
+		if ( p.prevZ ) p.prevZ.nextZ = p.nextZ;
+		if ( p.nextZ ) p.nextZ.prevZ = p.prevZ;
+
+	}
+
+	function Node( i, x, y ) {
+
+		// vertice index in coordinates array
+		this.i = i;
+
+		// vertex coordinates
+		this.x = x;
+		this.y = y;
+
+		// previous and next vertice nodes in a polygon ring
+		this.prev = null;
+		this.next = null;
+
+		// z-order curve value
+		this.z = null;
+
+		// previous and next nodes in z-order
+		this.prevZ = null;
+		this.nextZ = null;
+
+		// indicates whether this is a steiner point
+		this.steiner = false;
+
+	}
+
+	function signedArea( data, start, end, dim ) {
+
+		var sum = 0;
+
+		for ( var i = start, j = end - dim; i < end; i += dim ) {
+
+			sum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] );
+			j = i;
+
+		}
+
+		return sum;
+
+	}
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 */
+
+	var ShapeUtils = {
+
+		// calculate area of the contour polygon
+
+		area: function ( contour ) {
+
+			var n = contour.length;
+			var a = 0.0;
+
+			for ( var p = n - 1, q = 0; q < n; p = q ++ ) {
+
+				a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;
+
+			}
+
+			return a * 0.5;
+
+		},
+
+		isClockWise: function ( pts ) {
+
+			return ShapeUtils.area( pts ) < 0;
+
+		},
+
+		triangulateShape: function ( contour, holes ) {
+
+			var vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]
+			var holeIndices = []; // array of hole indices
+			var faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]
+
+			removeDupEndPts( contour );
+			addContour( vertices, contour );
+
+			//
+
+			var holeIndex = contour.length;
+
+			holes.forEach( removeDupEndPts );
+
+			for ( var i = 0; i < holes.length; i ++ ) {
+
+				holeIndices.push( holeIndex );
+				holeIndex += holes[ i ].length;
+				addContour( vertices, holes[ i ] );
+
+			}
+
+			//
+
+			var triangles = Earcut.triangulate( vertices, holeIndices );
+
+			//
+
+			for ( var i = 0; i < triangles.length; i += 3 ) {
+
+				faces.push( triangles.slice( i, i + 3 ) );
+
+			}
+
+			return faces;
+
+		}
+
+	};
+
+	function removeDupEndPts( points ) {
+
+		var l = points.length;
+
+		if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {
+
+			points.pop();
+
+		}
+
+	}
+
+	function addContour( vertices, contour ) {
+
+		for ( var i = 0; i < contour.length; i ++ ) {
+
+			vertices.push( contour[ i ].x );
+			vertices.push( contour[ i ].y );
+
+		}
+
+	}
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 *
+	 * Creates extruded geometry from a path shape.
+	 *
+	 * parameters = {
+	 *
+	 *  curveSegments: <int>, // number of points on the curves
+	 *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
+	 *  depth: <float>, // Depth to extrude the shape
+	 *
+	 *  bevelEnabled: <bool>, // turn on bevel
+	 *  bevelThickness: <float>, // how deep into the original shape bevel goes
+	 *  bevelSize: <float>, // how far from shape outline (including bevelOffset) is bevel
+	 *  bevelOffset: <float>, // how far from shape outline does bevel start
+	 *  bevelSegments: <int>, // number of bevel layers
+	 *
+	 *  extrudePath: <THREE.Curve> // curve to extrude shape along
+	 *
+	 *  UVGenerator: <Object> // object that provides UV generator functions
+	 *
+	 * }
+	 */
+
+	// ExtrudeGeometry
+
+	function ExtrudeGeometry( shapes, options ) {
+
+		Geometry.call( this );
+
+		this.type = 'ExtrudeGeometry';
+
+		this.parameters = {
+			shapes: shapes,
+			options: options
+		};
+
+		this.fromBufferGeometry( new ExtrudeBufferGeometry( shapes, options ) );
+		this.mergeVertices();
+
+	}
+
+	ExtrudeGeometry.prototype = Object.create( Geometry.prototype );
+	ExtrudeGeometry.prototype.constructor = ExtrudeGeometry;
+
+	ExtrudeGeometry.prototype.toJSON = function () {
+
+		var data = Geometry.prototype.toJSON.call( this );
+
+		var shapes = this.parameters.shapes;
+		var options = this.parameters.options;
+
+		return toJSON( shapes, options, data );
+
+	};
+
+	// ExtrudeBufferGeometry
+
+	function ExtrudeBufferGeometry( shapes, options ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'ExtrudeBufferGeometry';
+
+		this.parameters = {
+			shapes: shapes,
+			options: options
+		};
+
+		shapes = Array.isArray( shapes ) ? shapes : [ shapes ];
+
+		var scope = this;
+
+		var verticesArray = [];
+		var uvArray = [];
+
+		for ( var i = 0, l = shapes.length; i < l; i ++ ) {
+
+			var shape = shapes[ i ];
+			addShape( shape );
+
+		}
+
+		// build geometry
+
+		this.addAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) );
+
+		this.computeVertexNormals();
+
+		// functions
+
+		function addShape( shape ) {
+
+			var placeholder = [];
+
+			// options
+
+			var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
+			var steps = options.steps !== undefined ? options.steps : 1;
+			var depth = options.depth !== undefined ? options.depth : 100;
+
+			var bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;
+			var bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6;
+			var bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2;
+			var bevelOffset = options.bevelOffset !== undefined ? options.bevelOffset : 0;
+			var bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;
+
+			var extrudePath = options.extrudePath;
+
+			var uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator;
+
+			// deprecated options
+
+			if ( options.amount !== undefined ) {
+
+				console.warn( 'THREE.ExtrudeBufferGeometry: amount has been renamed to depth.' );
+				depth = options.amount;
+
+			}
+
+			//
+
+			var extrudePts, extrudeByPath = false;
+			var splineTube, binormal, normal, position2;
+
+			if ( extrudePath ) {
+
+				extrudePts = extrudePath.getSpacedPoints( steps );
+
+				extrudeByPath = true;
+				bevelEnabled = false; // bevels not supported for path extrusion
+
+				// SETUP TNB variables
+
+				// TODO1 - have a .isClosed in spline?
+
+				splineTube = extrudePath.computeFrenetFrames( steps, false );
+
+				// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);
+
+				binormal = new Vector3();
+				normal = new Vector3();
+				position2 = new Vector3();
+
+			}
+
+			// Safeguards if bevels are not enabled
+
+			if ( ! bevelEnabled ) {
+
+				bevelSegments = 0;
+				bevelThickness = 0;
+				bevelSize = 0;
+				bevelOffset = 0;
+
+			}
+
+			// Variables initialization
+
+			var ahole, h, hl; // looping of holes
+
+			var shapePoints = shape.extractPoints( curveSegments );
+
+			var vertices = shapePoints.shape;
+			var holes = shapePoints.holes;
+
+			var reverse = ! ShapeUtils.isClockWise( vertices );
+
+			if ( reverse ) {
+
+				vertices = vertices.reverse();
+
+				// Maybe we should also check if holes are in the opposite direction, just to be safe ...
+
+				for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+					ahole = holes[ h ];
+
+					if ( ShapeUtils.isClockWise( ahole ) ) {
+
+						holes[ h ] = ahole.reverse();
+
+					}
+
+				}
+
+			}
+
+
+			var faces = ShapeUtils.triangulateShape( vertices, holes );
+
+			/* Vertices */
+
+			var contour = vertices; // vertices has all points but contour has only points of circumference
+
+			for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+				ahole = holes[ h ];
+
+				vertices = vertices.concat( ahole );
+
+			}
+
+
+			function scalePt2( pt, vec, size ) {
+
+				if ( ! vec ) console.error( "THREE.ExtrudeGeometry: vec does not exist" );
+
+				return vec.clone().multiplyScalar( size ).add( pt );
+
+			}
+
+			var b, bs, t, z,
+				vert, vlen = vertices.length,
+				face, flen = faces.length;
+
+
+			// Find directions for point movement
+
+
+			function getBevelVec( inPt, inPrev, inNext ) {
+
+				// computes for inPt the corresponding point inPt' on a new contour
+				//   shifted by 1 unit (length of normalized vector) to the left
+				// if we walk along contour clockwise, this new contour is outside the old one
+				//
+				// inPt' is the intersection of the two lines parallel to the two
+				//  adjacent edges of inPt at a distance of 1 unit on the left side.
+
+				var v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt
+
+				// good reading for geometry algorithms (here: line-line intersection)
+				// http://geomalgorithms.com/a05-_intersect-1.html
+
+				var v_prev_x = inPt.x - inPrev.x,
+					v_prev_y = inPt.y - inPrev.y;
+				var v_next_x = inNext.x - inPt.x,
+					v_next_y = inNext.y - inPt.y;
+
+				var v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );
+
+				// check for collinear edges
+				var collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );
+
+				if ( Math.abs( collinear0 ) > Number.EPSILON ) {
+
+					// not collinear
+
+					// length of vectors for normalizing
+
+					var v_prev_len = Math.sqrt( v_prev_lensq );
+					var v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );
+
+					// shift adjacent points by unit vectors to the left
+
+					var ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );
+					var ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );
+
+					var ptNextShift_x = ( inNext.x - v_next_y / v_next_len );
+					var ptNextShift_y = ( inNext.y + v_next_x / v_next_len );
+
+					// scaling factor for v_prev to intersection point
+
+					var sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -
+							( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /
+						( v_prev_x * v_next_y - v_prev_y * v_next_x );
+
+					// vector from inPt to intersection point
+
+					v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );
+					v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );
+
+					// Don't normalize!, otherwise sharp corners become ugly
+					//  but prevent crazy spikes
+					var v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );
+					if ( v_trans_lensq <= 2 ) {
+
+						return new Vector2( v_trans_x, v_trans_y );
+
+					} else {
+
+						shrink_by = Math.sqrt( v_trans_lensq / 2 );
+
+					}
+
+				} else {
+
+					// handle special case of collinear edges
+
+					var direction_eq = false; // assumes: opposite
+					if ( v_prev_x > Number.EPSILON ) {
+
+						if ( v_next_x > Number.EPSILON ) {
+
+							direction_eq = true;
+
+						}
+
+					} else {
+
+						if ( v_prev_x < - Number.EPSILON ) {
+
+							if ( v_next_x < - Number.EPSILON ) {
+
+								direction_eq = true;
+
+							}
+
+						} else {
+
+							if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {
+
+								direction_eq = true;
+
+							}
+
+						}
+
+					}
+
+					if ( direction_eq ) {
+
+						// console.log("Warning: lines are a straight sequence");
+						v_trans_x = - v_prev_y;
+						v_trans_y = v_prev_x;
+						shrink_by = Math.sqrt( v_prev_lensq );
+
+					} else {
+
+						// console.log("Warning: lines are a straight spike");
+						v_trans_x = v_prev_x;
+						v_trans_y = v_prev_y;
+						shrink_by = Math.sqrt( v_prev_lensq / 2 );
+
+					}
+
+				}
+
+				return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );
+
+			}
+
+
+			var contourMovements = [];
+
+			for ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {
+
+				if ( j === il ) j = 0;
+				if ( k === il ) k = 0;
+
+				//  (j)---(i)---(k)
+				// console.log('i,j,k', i, j , k)
+
+				contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );
+
+			}
+
+			var holesMovements = [],
+				oneHoleMovements, verticesMovements = contourMovements.concat();
+
+			for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+				ahole = holes[ h ];
+
+				oneHoleMovements = [];
+
+				for ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {
+
+					if ( j === il ) j = 0;
+					if ( k === il ) k = 0;
+
+					//  (j)---(i)---(k)
+					oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );
+
+				}
+
+				holesMovements.push( oneHoleMovements );
+				verticesMovements = verticesMovements.concat( oneHoleMovements );
+
+			}
+
+
+			// Loop bevelSegments, 1 for the front, 1 for the back
+
+			for ( b = 0; b < bevelSegments; b ++ ) {
+
+				//for ( b = bevelSegments; b > 0; b -- ) {
+
+				t = b / bevelSegments;
+				z = bevelThickness * Math.cos( t * Math.PI / 2 );
+				bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset;
+
+				// contract shape
+
+				for ( i = 0, il = contour.length; i < il; i ++ ) {
+
+					vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
+
+					v( vert.x, vert.y, - z );
+
+				}
+
+				// expand holes
+
+				for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+					ahole = holes[ h ];
+					oneHoleMovements = holesMovements[ h ];
+
+					for ( i = 0, il = ahole.length; i < il; i ++ ) {
+
+						vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );
+
+						v( vert.x, vert.y, - z );
+
+					}
+
+				}
+
+			}
+
+			bs = bevelSize + bevelOffset;
+
+			// Back facing vertices
+
+			for ( i = 0; i < vlen; i ++ ) {
+
+				vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];
+
+				if ( ! extrudeByPath ) {
+
+					v( vert.x, vert.y, 0 );
+
+				} else {
+
+					// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );
+
+					normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );
+					binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );
+
+					position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );
+
+					v( position2.x, position2.y, position2.z );
+
+				}
+
+			}
+
+			// Add stepped vertices...
+			// Including front facing vertices
+
+			var s;
+
+			for ( s = 1; s <= steps; s ++ ) {
+
+				for ( i = 0; i < vlen; i ++ ) {
+
+					vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];
+
+					if ( ! extrudeByPath ) {
+
+						v( vert.x, vert.y, depth / steps * s );
+
+					} else {
+
+						// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );
+
+						normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );
+						binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );
+
+						position2.copy( extrudePts[ s ] ).add( normal ).add( binormal );
+
+						v( position2.x, position2.y, position2.z );
+
+					}
+
+				}
+
+			}
+
+
+			// Add bevel segments planes
+
+			//for ( b = 1; b <= bevelSegments; b ++ ) {
+			for ( b = bevelSegments - 1; b >= 0; b -- ) {
+
+				t = b / bevelSegments;
+				z = bevelThickness * Math.cos( t * Math.PI / 2 );
+				bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset;
+
+				// contract shape
+
+				for ( i = 0, il = contour.length; i < il; i ++ ) {
+
+					vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
+					v( vert.x, vert.y, depth + z );
+
+				}
+
+				// expand holes
+
+				for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+					ahole = holes[ h ];
+					oneHoleMovements = holesMovements[ h ];
+
+					for ( i = 0, il = ahole.length; i < il; i ++ ) {
+
+						vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );
+
+						if ( ! extrudeByPath ) {
+
+							v( vert.x, vert.y, depth + z );
+
+						} else {
+
+							v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );
+
+						}
+
+					}
+
+				}
+
+			}
+
+			/* Faces */
+
+			// Top and bottom faces
+
+			buildLidFaces();
+
+			// Sides faces
+
+			buildSideFaces();
+
+
+			/////  Internal functions
+
+			function buildLidFaces() {
+
+				var start = verticesArray.length / 3;
+
+				if ( bevelEnabled ) {
+
+					var layer = 0; // steps + 1
+					var offset = vlen * layer;
+
+					// Bottom faces
+
+					for ( i = 0; i < flen; i ++ ) {
+
+						face = faces[ i ];
+						f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );
+
+					}
+
+					layer = steps + bevelSegments * 2;
+					offset = vlen * layer;
+
+					// Top faces
+
+					for ( i = 0; i < flen; i ++ ) {
+
+						face = faces[ i ];
+						f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );
+
+					}
+
+				} else {
+
+					// Bottom faces
+
+					for ( i = 0; i < flen; i ++ ) {
+
+						face = faces[ i ];
+						f3( face[ 2 ], face[ 1 ], face[ 0 ] );
+
+					}
+
+					// Top faces
+
+					for ( i = 0; i < flen; i ++ ) {
+
+						face = faces[ i ];
+						f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );
+
+					}
+
+				}
+
+				scope.addGroup( start, verticesArray.length / 3 - start, 0 );
+
+			}
+
+			// Create faces for the z-sides of the shape
+
+			function buildSideFaces() {
+
+				var start = verticesArray.length / 3;
+				var layeroffset = 0;
+				sidewalls( contour, layeroffset );
+				layeroffset += contour.length;
+
+				for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+					ahole = holes[ h ];
+					sidewalls( ahole, layeroffset );
+
+					//, true
+					layeroffset += ahole.length;
+
+				}
+
+
+				scope.addGroup( start, verticesArray.length / 3 - start, 1 );
+
+
+			}
+
+			function sidewalls( contour, layeroffset ) {
+
+				var j, k;
+				i = contour.length;
+
+				while ( -- i >= 0 ) {
+
+					j = i;
+					k = i - 1;
+					if ( k < 0 ) k = contour.length - 1;
+
+					//console.log('b', i,j, i-1, k,vertices.length);
+
+					var s = 0,
+						sl = steps + bevelSegments * 2;
+
+					for ( s = 0; s < sl; s ++ ) {
+
+						var slen1 = vlen * s;
+						var slen2 = vlen * ( s + 1 );
+
+						var a = layeroffset + j + slen1,
+							b = layeroffset + k + slen1,
+							c = layeroffset + k + slen2,
+							d = layeroffset + j + slen2;
+
+						f4( a, b, c, d );
+
+					}
+
+				}
+
+			}
+
+			function v( x, y, z ) {
+
+				placeholder.push( x );
+				placeholder.push( y );
+				placeholder.push( z );
+
+			}
+
+
+			function f3( a, b, c ) {
+
+				addVertex( a );
+				addVertex( b );
+				addVertex( c );
+
+				var nextIndex = verticesArray.length / 3;
+				var uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );
+
+				addUV( uvs[ 0 ] );
+				addUV( uvs[ 1 ] );
+				addUV( uvs[ 2 ] );
+
+			}
+
+			function f4( a, b, c, d ) {
+
+				addVertex( a );
+				addVertex( b );
+				addVertex( d );
+
+				addVertex( b );
+				addVertex( c );
+				addVertex( d );
+
+
+				var nextIndex = verticesArray.length / 3;
+				var uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );
+
+				addUV( uvs[ 0 ] );
+				addUV( uvs[ 1 ] );
+				addUV( uvs[ 3 ] );
+
+				addUV( uvs[ 1 ] );
+				addUV( uvs[ 2 ] );
+				addUV( uvs[ 3 ] );
+
+			}
+
+			function addVertex( index ) {
+
+				verticesArray.push( placeholder[ index * 3 + 0 ] );
+				verticesArray.push( placeholder[ index * 3 + 1 ] );
+				verticesArray.push( placeholder[ index * 3 + 2 ] );
+
+			}
+
+
+			function addUV( vector2 ) {
+
+				uvArray.push( vector2.x );
+				uvArray.push( vector2.y );
+
+			}
+
+		}
+
+	}
+
+	ExtrudeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	ExtrudeBufferGeometry.prototype.constructor = ExtrudeBufferGeometry;
+
+	ExtrudeBufferGeometry.prototype.toJSON = function () {
+
+		var data = BufferGeometry.prototype.toJSON.call( this );
+
+		var shapes = this.parameters.shapes;
+		var options = this.parameters.options;
+
+		return toJSON( shapes, options, data );
+
+	};
+
+	//
+
+	var WorldUVGenerator = {
+
+		generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {
+
+			var a_x = vertices[ indexA * 3 ];
+			var a_y = vertices[ indexA * 3 + 1 ];
+			var b_x = vertices[ indexB * 3 ];
+			var b_y = vertices[ indexB * 3 + 1 ];
+			var c_x = vertices[ indexC * 3 ];
+			var c_y = vertices[ indexC * 3 + 1 ];
+
+			return [
+				new Vector2( a_x, a_y ),
+				new Vector2( b_x, b_y ),
+				new Vector2( c_x, c_y )
+			];
+
+		},
+
+		generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {
+
+			var a_x = vertices[ indexA * 3 ];
+			var a_y = vertices[ indexA * 3 + 1 ];
+			var a_z = vertices[ indexA * 3 + 2 ];
+			var b_x = vertices[ indexB * 3 ];
+			var b_y = vertices[ indexB * 3 + 1 ];
+			var b_z = vertices[ indexB * 3 + 2 ];
+			var c_x = vertices[ indexC * 3 ];
+			var c_y = vertices[ indexC * 3 + 1 ];
+			var c_z = vertices[ indexC * 3 + 2 ];
+			var d_x = vertices[ indexD * 3 ];
+			var d_y = vertices[ indexD * 3 + 1 ];
+			var d_z = vertices[ indexD * 3 + 2 ];
+
+			if ( Math.abs( a_y - b_y ) < 0.01 ) {
+
+				return [
+					new Vector2( a_x, 1 - a_z ),
+					new Vector2( b_x, 1 - b_z ),
+					new Vector2( c_x, 1 - c_z ),
+					new Vector2( d_x, 1 - d_z )
+				];
+
+			} else {
+
+				return [
+					new Vector2( a_y, 1 - a_z ),
+					new Vector2( b_y, 1 - b_z ),
+					new Vector2( c_y, 1 - c_z ),
+					new Vector2( d_y, 1 - d_z )
+				];
+
+			}
+
+		}
+	};
+
+	function toJSON( shapes, options, data ) {
+
+		//
+
+		data.shapes = [];
+
+		if ( Array.isArray( shapes ) ) {
+
+			for ( var i = 0, l = shapes.length; i < l; i ++ ) {
+
+				var shape = shapes[ i ];
+
+				data.shapes.push( shape.uuid );
+
+			}
+
+		} else {
+
+			data.shapes.push( shapes.uuid );
+
+		}
+
+		//
+
+		if ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON();
+
+		return data;
+
+	}
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 * @author alteredq / http://alteredqualia.com/
+	 *
+	 * Text = 3D Text
+	 *
+	 * parameters = {
+	 *  font: <THREE.Font>, // font
+	 *
+	 *  size: <float>, // size of the text
+	 *  height: <float>, // thickness to extrude text
+	 *  curveSegments: <int>, // number of points on the curves
+	 *
+	 *  bevelEnabled: <bool>, // turn on bevel
+	 *  bevelThickness: <float>, // how deep into text bevel goes
+	 *  bevelSize: <float>, // how far from text outline (including bevelOffset) is bevel
+	 *  bevelOffset: <float> // how far from text outline does bevel start
+	 * }
+	 */
+
+	// TextGeometry
+
+	function TextGeometry( text, parameters ) {
+
+		Geometry.call( this );
+
+		this.type = 'TextGeometry';
+
+		this.parameters = {
+			text: text,
+			parameters: parameters
+		};
+
+		this.fromBufferGeometry( new TextBufferGeometry( text, parameters ) );
+		this.mergeVertices();
+
+	}
+
+	TextGeometry.prototype = Object.create( Geometry.prototype );
+	TextGeometry.prototype.constructor = TextGeometry;
+
+	// TextBufferGeometry
+
+	function TextBufferGeometry( text, parameters ) {
+
+		parameters = parameters || {};
+
+		var font = parameters.font;
+
+		if ( ! ( font && font.isFont ) ) {
+
+			console.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' );
+			return new Geometry();
+
+		}
+
+		var shapes = font.generateShapes( text, parameters.size );
+
+		// translate parameters to ExtrudeGeometry API
+
+		parameters.depth = parameters.height !== undefined ? parameters.height : 50;
+
+		// defaults
+
+		if ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10;
+		if ( parameters.bevelSize === undefined ) parameters.bevelSize = 8;
+		if ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false;
+
+		ExtrudeBufferGeometry.call( this, shapes, parameters );
+
+		this.type = 'TextBufferGeometry';
+
+	}
+
+	TextBufferGeometry.prototype = Object.create( ExtrudeBufferGeometry.prototype );
+	TextBufferGeometry.prototype.constructor = TextBufferGeometry;
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author benaadams / https://twitter.com/ben_a_adams
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// SphereGeometry
+
+	function SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {
+
+		Geometry.call( this );
+
+		this.type = 'SphereGeometry';
+
+		this.parameters = {
+			radius: radius,
+			widthSegments: widthSegments,
+			heightSegments: heightSegments,
+			phiStart: phiStart,
+			phiLength: phiLength,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+		this.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );
+		this.mergeVertices();
+
+	}
+
+	SphereGeometry.prototype = Object.create( Geometry.prototype );
+	SphereGeometry.prototype.constructor = SphereGeometry;
+
+	// SphereBufferGeometry
+
+	function SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'SphereBufferGeometry';
+
+		this.parameters = {
+			radius: radius,
+			widthSegments: widthSegments,
+			heightSegments: heightSegments,
+			phiStart: phiStart,
+			phiLength: phiLength,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+		radius = radius || 1;
+
+		widthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );
+		heightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );
+
+		phiStart = phiStart !== undefined ? phiStart : 0;
+		phiLength = phiLength !== undefined ? phiLength : Math.PI * 2;
+
+		thetaStart = thetaStart !== undefined ? thetaStart : 0;
+		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI;
+
+		var thetaEnd = Math.min( thetaStart + thetaLength, Math.PI );
+
+		var ix, iy;
+
+		var index = 0;
+		var grid = [];
+
+		var vertex = new Vector3();
+		var normal = new Vector3();
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		// generate vertices, normals and uvs
+
+		for ( iy = 0; iy <= heightSegments; iy ++ ) {
+
+			var verticesRow = [];
+
+			var v = iy / heightSegments;
+
+			// special case for the poles
+
+			var uOffset = 0;
+
+			if ( iy == 0 && thetaStart == 0 ) {
+
+				uOffset = 0.5 / widthSegments;
+
+			} else if ( iy == heightSegments && thetaEnd == Math.PI ) {
+
+				uOffset = - 0.5 / widthSegments;
+
+			}
+
+			for ( ix = 0; ix <= widthSegments; ix ++ ) {
+
+				var u = ix / widthSegments;
+
+				// vertex
+
+				vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
+				vertex.y = radius * Math.cos( thetaStart + v * thetaLength );
+				vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
+
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				// normal
+
+				normal.copy( vertex ).normalize();
+				normals.push( normal.x, normal.y, normal.z );
+
+				// uv
+
+				uvs.push( u + uOffset, 1 - v );
+
+				verticesRow.push( index ++ );
+
+			}
+
+			grid.push( verticesRow );
+
+		}
+
+		// indices
+
+		for ( iy = 0; iy < heightSegments; iy ++ ) {
+
+			for ( ix = 0; ix < widthSegments; ix ++ ) {
+
+				var a = grid[ iy ][ ix + 1 ];
+				var b = grid[ iy ][ ix ];
+				var c = grid[ iy + 1 ][ ix ];
+				var d = grid[ iy + 1 ][ ix + 1 ];
+
+				if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );
+				if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );
+
+			}
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	}
+
+	SphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	SphereBufferGeometry.prototype.constructor = SphereBufferGeometry;
+
+	/**
+	 * @author Kaleb Murphy
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// RingGeometry
+
+	function RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {
+
+		Geometry.call( this );
+
+		this.type = 'RingGeometry';
+
+		this.parameters = {
+			innerRadius: innerRadius,
+			outerRadius: outerRadius,
+			thetaSegments: thetaSegments,
+			phiSegments: phiSegments,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+		this.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) );
+		this.mergeVertices();
+
+	}
+
+	RingGeometry.prototype = Object.create( Geometry.prototype );
+	RingGeometry.prototype.constructor = RingGeometry;
+
+	// RingBufferGeometry
+
+	function RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'RingBufferGeometry';
+
+		this.parameters = {
+			innerRadius: innerRadius,
+			outerRadius: outerRadius,
+			thetaSegments: thetaSegments,
+			phiSegments: phiSegments,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+		innerRadius = innerRadius || 0.5;
+		outerRadius = outerRadius || 1;
+
+		thetaStart = thetaStart !== undefined ? thetaStart : 0;
+		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
+
+		thetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;
+		phiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1;
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		// some helper variables
+
+		var segment;
+		var radius = innerRadius;
+		var radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );
+		var vertex = new Vector3();
+		var uv = new Vector2();
+		var j, i;
+
+		// generate vertices, normals and uvs
+
+		for ( j = 0; j <= phiSegments; j ++ ) {
+
+			for ( i = 0; i <= thetaSegments; i ++ ) {
+
+				// values are generate from the inside of the ring to the outside
+
+				segment = thetaStart + i / thetaSegments * thetaLength;
+
+				// vertex
+
+				vertex.x = radius * Math.cos( segment );
+				vertex.y = radius * Math.sin( segment );
+
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				// normal
+
+				normals.push( 0, 0, 1 );
+
+				// uv
+
+				uv.x = ( vertex.x / outerRadius + 1 ) / 2;
+				uv.y = ( vertex.y / outerRadius + 1 ) / 2;
+
+				uvs.push( uv.x, uv.y );
+
+			}
+
+			// increase the radius for next row of vertices
+
+			radius += radiusStep;
+
+		}
+
+		// indices
+
+		for ( j = 0; j < phiSegments; j ++ ) {
+
+			var thetaSegmentLevel = j * ( thetaSegments + 1 );
+
+			for ( i = 0; i < thetaSegments; i ++ ) {
+
+				segment = i + thetaSegmentLevel;
+
+				var a = segment;
+				var b = segment + thetaSegments + 1;
+				var c = segment + thetaSegments + 2;
+				var d = segment + 1;
+
+				// faces
+
+				indices.push( a, b, d );
+				indices.push( b, c, d );
+
+			}
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	}
+
+	RingBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	RingBufferGeometry.prototype.constructor = RingBufferGeometry;
+
+	/**
+	 * @author zz85 / https://github.com/zz85
+	 * @author bhouston / http://clara.io
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// LatheGeometry
+
+	function LatheGeometry( points, segments, phiStart, phiLength ) {
+
+		Geometry.call( this );
+
+		this.type = 'LatheGeometry';
+
+		this.parameters = {
+			points: points,
+			segments: segments,
+			phiStart: phiStart,
+			phiLength: phiLength
+		};
+
+		this.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) );
+		this.mergeVertices();
+
+	}
+
+	LatheGeometry.prototype = Object.create( Geometry.prototype );
+	LatheGeometry.prototype.constructor = LatheGeometry;
+
+	// LatheBufferGeometry
+
+	function LatheBufferGeometry( points, segments, phiStart, phiLength ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'LatheBufferGeometry';
+
+		this.parameters = {
+			points: points,
+			segments: segments,
+			phiStart: phiStart,
+			phiLength: phiLength
+		};
+
+		segments = Math.floor( segments ) || 12;
+		phiStart = phiStart || 0;
+		phiLength = phiLength || Math.PI * 2;
+
+		// clamp phiLength so it's in range of [ 0, 2PI ]
+
+		phiLength = _Math.clamp( phiLength, 0, Math.PI * 2 );
+
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var uvs = [];
+
+		// helper variables
+
+		var base;
+		var inverseSegments = 1.0 / segments;
+		var vertex = new Vector3();
+		var uv = new Vector2();
+		var i, j;
+
+		// generate vertices and uvs
+
+		for ( i = 0; i <= segments; i ++ ) {
+
+			var phi = phiStart + i * inverseSegments * phiLength;
+
+			var sin = Math.sin( phi );
+			var cos = Math.cos( phi );
+
+			for ( j = 0; j <= ( points.length - 1 ); j ++ ) {
+
+				// vertex
+
+				vertex.x = points[ j ].x * sin;
+				vertex.y = points[ j ].y;
+				vertex.z = points[ j ].x * cos;
+
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				// uv
+
+				uv.x = i / segments;
+				uv.y = j / ( points.length - 1 );
+
+				uvs.push( uv.x, uv.y );
+
+
+			}
+
+		}
+
+		// indices
+
+		for ( i = 0; i < segments; i ++ ) {
+
+			for ( j = 0; j < ( points.length - 1 ); j ++ ) {
+
+				base = j + i * points.length;
+
+				var a = base;
+				var b = base + points.length;
+				var c = base + points.length + 1;
+				var d = base + 1;
+
+				// faces
+
+				indices.push( a, b, d );
+				indices.push( b, c, d );
+
+			}
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+		// generate normals
+
+		this.computeVertexNormals();
+
+		// if the geometry is closed, we need to average the normals along the seam.
+		// because the corresponding vertices are identical (but still have different UVs).
+
+		if ( phiLength === Math.PI * 2 ) {
+
+			var normals = this.attributes.normal.array;
+			var n1 = new Vector3();
+			var n2 = new Vector3();
+			var n = new Vector3();
+
+			// this is the buffer offset for the last line of vertices
+
+			base = segments * points.length * 3;
+
+			for ( i = 0, j = 0; i < points.length; i ++, j += 3 ) {
+
+				// select the normal of the vertex in the first line
+
+				n1.x = normals[ j + 0 ];
+				n1.y = normals[ j + 1 ];
+				n1.z = normals[ j + 2 ];
+
+				// select the normal of the vertex in the last line
+
+				n2.x = normals[ base + j + 0 ];
+				n2.y = normals[ base + j + 1 ];
+				n2.z = normals[ base + j + 2 ];
+
+				// average normals
+
+				n.addVectors( n1, n2 ).normalize();
+
+				// assign the new values to both normals
+
+				normals[ j + 0 ] = normals[ base + j + 0 ] = n.x;
+				normals[ j + 1 ] = normals[ base + j + 1 ] = n.y;
+				normals[ j + 2 ] = normals[ base + j + 2 ] = n.z;
+
+			}
+
+		}
+
+	}
+
+	LatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	LatheBufferGeometry.prototype.constructor = LatheBufferGeometry;
+
+	/**
+	 * @author jonobr1 / http://jonobr1.com
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// ShapeGeometry
+
+	function ShapeGeometry( shapes, curveSegments ) {
+
+		Geometry.call( this );
+
+		this.type = 'ShapeGeometry';
+
+		if ( typeof curveSegments === 'object' ) {
+
+			console.warn( 'THREE.ShapeGeometry: Options parameter has been removed.' );
+
+			curveSegments = curveSegments.curveSegments;
+
+		}
+
+		this.parameters = {
+			shapes: shapes,
+			curveSegments: curveSegments
+		};
+
+		this.fromBufferGeometry( new ShapeBufferGeometry( shapes, curveSegments ) );
+		this.mergeVertices();
+
+	}
+
+	ShapeGeometry.prototype = Object.create( Geometry.prototype );
+	ShapeGeometry.prototype.constructor = ShapeGeometry;
+
+	ShapeGeometry.prototype.toJSON = function () {
+
+		var data = Geometry.prototype.toJSON.call( this );
+
+		var shapes = this.parameters.shapes;
+
+		return toJSON$1( shapes, data );
+
+	};
+
+	// ShapeBufferGeometry
+
+	function ShapeBufferGeometry( shapes, curveSegments ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'ShapeBufferGeometry';
+
+		this.parameters = {
+			shapes: shapes,
+			curveSegments: curveSegments
+		};
+
+		curveSegments = curveSegments || 12;
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		// helper variables
+
+		var groupStart = 0;
+		var groupCount = 0;
+
+		// allow single and array values for "shapes" parameter
+
+		if ( Array.isArray( shapes ) === false ) {
+
+			addShape( shapes );
+
+		} else {
+
+			for ( var i = 0; i < shapes.length; i ++ ) {
+
+				addShape( shapes[ i ] );
+
+				this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support
+
+				groupStart += groupCount;
+				groupCount = 0;
+
+			}
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+
+		// helper functions
+
+		function addShape( shape ) {
+
+			var i, l, shapeHole;
+
+			var indexOffset = vertices.length / 3;
+			var points = shape.extractPoints( curveSegments );
+
+			var shapeVertices = points.shape;
+			var shapeHoles = points.holes;
+
+			// check direction of vertices
+
+			if ( ShapeUtils.isClockWise( shapeVertices ) === false ) {
+
+				shapeVertices = shapeVertices.reverse();
+
+			}
+
+			for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {
+
+				shapeHole = shapeHoles[ i ];
+
+				if ( ShapeUtils.isClockWise( shapeHole ) === true ) {
+
+					shapeHoles[ i ] = shapeHole.reverse();
+
+				}
+
+			}
+
+			var faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );
+
+			// join vertices of inner and outer paths to a single array
+
+			for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {
+
+				shapeHole = shapeHoles[ i ];
+				shapeVertices = shapeVertices.concat( shapeHole );
+
+			}
+
+			// vertices, normals, uvs
+
+			for ( i = 0, l = shapeVertices.length; i < l; i ++ ) {
+
+				var vertex = shapeVertices[ i ];
+
+				vertices.push( vertex.x, vertex.y, 0 );
+				normals.push( 0, 0, 1 );
+				uvs.push( vertex.x, vertex.y ); // world uvs
+
+			}
+
+			// incides
+
+			for ( i = 0, l = faces.length; i < l; i ++ ) {
+
+				var face = faces[ i ];
+
+				var a = face[ 0 ] + indexOffset;
+				var b = face[ 1 ] + indexOffset;
+				var c = face[ 2 ] + indexOffset;
+
+				indices.push( a, b, c );
+				groupCount += 3;
+
+			}
+
+		}
+
+	}
+
+	ShapeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	ShapeBufferGeometry.prototype.constructor = ShapeBufferGeometry;
+
+	ShapeBufferGeometry.prototype.toJSON = function () {
+
+		var data = BufferGeometry.prototype.toJSON.call( this );
+
+		var shapes = this.parameters.shapes;
+
+		return toJSON$1( shapes, data );
+
+	};
+
+	//
+
+	function toJSON$1( shapes, data ) {
+
+		data.shapes = [];
+
+		if ( Array.isArray( shapes ) ) {
+
+			for ( var i = 0, l = shapes.length; i < l; i ++ ) {
+
+				var shape = shapes[ i ];
+
+				data.shapes.push( shape.uuid );
+
+			}
+
+		} else {
+
+			data.shapes.push( shapes.uuid );
+
+		}
+
+		return data;
+
+	}
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	function EdgesGeometry( geometry, thresholdAngle ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'EdgesGeometry';
+
+		this.parameters = {
+			thresholdAngle: thresholdAngle
+		};
+
+		thresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;
+
+		// buffer
+
+		var vertices = [];
+
+		// helper variables
+
+		var thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle );
+		var edge = [ 0, 0 ], edges = {}, edge1, edge2;
+		var key, keys = [ 'a', 'b', 'c' ];
+
+		// prepare source geometry
+
+		var geometry2;
+
+		if ( geometry.isBufferGeometry ) {
+
+			geometry2 = new Geometry();
+			geometry2.fromBufferGeometry( geometry );
+
+		} else {
+
+			geometry2 = geometry.clone();
+
+		}
+
+		geometry2.mergeVertices();
+		geometry2.computeFaceNormals();
+
+		var sourceVertices = geometry2.vertices;
+		var faces = geometry2.faces;
+
+		// now create a data structure where each entry represents an edge with its adjoining faces
+
+		for ( var i = 0, l = faces.length; i < l; i ++ ) {
+
+			var face = faces[ i ];
+
+			for ( var j = 0; j < 3; j ++ ) {
+
+				edge1 = face[ keys[ j ] ];
+				edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
+				edge[ 0 ] = Math.min( edge1, edge2 );
+				edge[ 1 ] = Math.max( edge1, edge2 );
+
+				key = edge[ 0 ] + ',' + edge[ 1 ];
+
+				if ( edges[ key ] === undefined ) {
+
+					edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ], face1: i, face2: undefined };
+
+				} else {
+
+					edges[ key ].face2 = i;
+
+				}
+
+			}
+
+		}
+
+		// generate vertices
+
+		for ( key in edges ) {
+
+			var e = edges[ key ];
+
+			// an edge is only rendered if the angle (in degrees) between the face normals of the adjoining faces exceeds this value. default = 1 degree.
+
+			if ( e.face2 === undefined || faces[ e.face1 ].normal.dot( faces[ e.face2 ].normal ) <= thresholdDot ) {
+
+				var vertex = sourceVertices[ e.index1 ];
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				vertex = sourceVertices[ e.index2 ];
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+			}
+
+		}
+
+		// build geometry
+
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+
+	}
+
+	EdgesGeometry.prototype = Object.create( BufferGeometry.prototype );
+	EdgesGeometry.prototype.constructor = EdgesGeometry;
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	// CylinderGeometry
+
+	function CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
+
+		Geometry.call( this );
+
+		this.type = 'CylinderGeometry';
+
+		this.parameters = {
+			radiusTop: radiusTop,
+			radiusBottom: radiusBottom,
+			height: height,
+			radialSegments: radialSegments,
+			heightSegments: heightSegments,
+			openEnded: openEnded,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+		this.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) );
+		this.mergeVertices();
+
+	}
+
+	CylinderGeometry.prototype = Object.create( Geometry.prototype );
+	CylinderGeometry.prototype.constructor = CylinderGeometry;
+
+	// CylinderBufferGeometry
+
+	function CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'CylinderBufferGeometry';
+
+		this.parameters = {
+			radiusTop: radiusTop,
+			radiusBottom: radiusBottom,
+			height: height,
+			radialSegments: radialSegments,
+			heightSegments: heightSegments,
+			openEnded: openEnded,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+		var scope = this;
+
+		radiusTop = radiusTop !== undefined ? radiusTop : 1;
+		radiusBottom = radiusBottom !== undefined ? radiusBottom : 1;
+		height = height || 1;
+
+		radialSegments = Math.floor( radialSegments ) || 8;
+		heightSegments = Math.floor( heightSegments ) || 1;
+
+		openEnded = openEnded !== undefined ? openEnded : false;
+		thetaStart = thetaStart !== undefined ? thetaStart : 0.0;
+		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		// helper variables
+
+		var index = 0;
+		var indexArray = [];
+		var halfHeight = height / 2;
+		var groupStart = 0;
+
+		// generate geometry
+
+		generateTorso();
+
+		if ( openEnded === false ) {
+
+			if ( radiusTop > 0 ) generateCap( true );
+			if ( radiusBottom > 0 ) generateCap( false );
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+		function generateTorso() {
+
+			var x, y;
+			var normal = new Vector3();
+			var vertex = new Vector3();
+
+			var groupCount = 0;
+
+			// this will be used to calculate the normal
+			var slope = ( radiusBottom - radiusTop ) / height;
+
+			// generate vertices, normals and uvs
+
+			for ( y = 0; y <= heightSegments; y ++ ) {
+
+				var indexRow = [];
+
+				var v = y / heightSegments;
+
+				// calculate the radius of the current row
+
+				var radius = v * ( radiusBottom - radiusTop ) + radiusTop;
+
+				for ( x = 0; x <= radialSegments; x ++ ) {
+
+					var u = x / radialSegments;
+
+					var theta = u * thetaLength + thetaStart;
+
+					var sinTheta = Math.sin( theta );
+					var cosTheta = Math.cos( theta );
+
+					// vertex
+
+					vertex.x = radius * sinTheta;
+					vertex.y = - v * height + halfHeight;
+					vertex.z = radius * cosTheta;
+					vertices.push( vertex.x, vertex.y, vertex.z );
+
+					// normal
+
+					normal.set( sinTheta, slope, cosTheta ).normalize();
+					normals.push( normal.x, normal.y, normal.z );
+
+					// uv
+
+					uvs.push( u, 1 - v );
+
+					// save index of vertex in respective row
+
+					indexRow.push( index ++ );
+
+				}
+
+				// now save vertices of the row in our index array
+
+				indexArray.push( indexRow );
+
+			}
+
+			// generate indices
+
+			for ( x = 0; x < radialSegments; x ++ ) {
+
+				for ( y = 0; y < heightSegments; y ++ ) {
+
+					// we use the index array to access the correct indices
+
+					var a = indexArray[ y ][ x ];
+					var b = indexArray[ y + 1 ][ x ];
+					var c = indexArray[ y + 1 ][ x + 1 ];
+					var d = indexArray[ y ][ x + 1 ];
+
+					// faces
+
+					indices.push( a, b, d );
+					indices.push( b, c, d );
+
+					// update group counter
+
+					groupCount += 6;
+
+				}
+
+			}
+
+			// add a group to the geometry. this will ensure multi material support
+
+			scope.addGroup( groupStart, groupCount, 0 );
+
+			// calculate new start value for groups
+
+			groupStart += groupCount;
+
+		}
+
+		function generateCap( top ) {
+
+			var x, centerIndexStart, centerIndexEnd;
+
+			var uv = new Vector2();
+			var vertex = new Vector3();
+
+			var groupCount = 0;
+
+			var radius = ( top === true ) ? radiusTop : radiusBottom;
+			var sign = ( top === true ) ? 1 : - 1;
+
+			// save the index of the first center vertex
+			centerIndexStart = index;
+
+			// first we generate the center vertex data of the cap.
+			// because the geometry needs one set of uvs per face,
+			// we must generate a center vertex per face/segment
+
+			for ( x = 1; x <= radialSegments; x ++ ) {
+
+				// vertex
+
+				vertices.push( 0, halfHeight * sign, 0 );
+
+				// normal
+
+				normals.push( 0, sign, 0 );
+
+				// uv
+
+				uvs.push( 0.5, 0.5 );
+
+				// increase index
+
+				index ++;
+
+			}
+
+			// save the index of the last center vertex
+
+			centerIndexEnd = index;
+
+			// now we generate the surrounding vertices, normals and uvs
+
+			for ( x = 0; x <= radialSegments; x ++ ) {
+
+				var u = x / radialSegments;
+				var theta = u * thetaLength + thetaStart;
+
+				var cosTheta = Math.cos( theta );
+				var sinTheta = Math.sin( theta );
+
+				// vertex
+
+				vertex.x = radius * sinTheta;
+				vertex.y = halfHeight * sign;
+				vertex.z = radius * cosTheta;
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				// normal
+
+				normals.push( 0, sign, 0 );
+
+				// uv
+
+				uv.x = ( cosTheta * 0.5 ) + 0.5;
+				uv.y = ( sinTheta * 0.5 * sign ) + 0.5;
+				uvs.push( uv.x, uv.y );
+
+				// increase index
+
+				index ++;
+
+			}
+
+			// generate indices
+
+			for ( x = 0; x < radialSegments; x ++ ) {
+
+				var c = centerIndexStart + x;
+				var i = centerIndexEnd + x;
+
+				if ( top === true ) {
+
+					// face top
+
+					indices.push( i, i + 1, c );
+
+				} else {
+
+					// face bottom
+
+					indices.push( i + 1, i, c );
+
+				}
+
+				groupCount += 3;
+
+			}
+
+			// add a group to the geometry. this will ensure multi material support
+
+			scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );
+
+			// calculate new start value for groups
+
+			groupStart += groupCount;
+
+		}
+
+	}
+
+	CylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	CylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry;
+
+	/**
+	 * @author abelnation / http://github.com/abelnation
+	 */
+
+	// ConeGeometry
+
+	function ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
+
+		CylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );
+
+		this.type = 'ConeGeometry';
+
+		this.parameters = {
+			radius: radius,
+			height: height,
+			radialSegments: radialSegments,
+			heightSegments: heightSegments,
+			openEnded: openEnded,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+	}
+
+	ConeGeometry.prototype = Object.create( CylinderGeometry.prototype );
+	ConeGeometry.prototype.constructor = ConeGeometry;
+
+	// ConeBufferGeometry
+
+	function ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
+
+		CylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );
+
+		this.type = 'ConeBufferGeometry';
+
+		this.parameters = {
+			radius: radius,
+			height: height,
+			radialSegments: radialSegments,
+			heightSegments: heightSegments,
+			openEnded: openEnded,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+	}
+
+	ConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype );
+	ConeBufferGeometry.prototype.constructor = ConeBufferGeometry;
+
+	/**
+	 * @author benaadams / https://twitter.com/ben_a_adams
+	 * @author Mugen87 / https://github.com/Mugen87
+	 * @author hughes
+	 */
+
+	// CircleGeometry
+
+	function CircleGeometry( radius, segments, thetaStart, thetaLength ) {
+
+		Geometry.call( this );
+
+		this.type = 'CircleGeometry';
+
+		this.parameters = {
+			radius: radius,
+			segments: segments,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+		this.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );
+		this.mergeVertices();
+
+	}
+
+	CircleGeometry.prototype = Object.create( Geometry.prototype );
+	CircleGeometry.prototype.constructor = CircleGeometry;
+
+	// CircleBufferGeometry
+
+	function CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) {
+
+		BufferGeometry.call( this );
+
+		this.type = 'CircleBufferGeometry';
+
+		this.parameters = {
+			radius: radius,
+			segments: segments,
+			thetaStart: thetaStart,
+			thetaLength: thetaLength
+		};
+
+		radius = radius || 1;
+		segments = segments !== undefined ? Math.max( 3, segments ) : 8;
+
+		thetaStart = thetaStart !== undefined ? thetaStart : 0;
+		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
+
+		// buffers
+
+		var indices = [];
+		var vertices = [];
+		var normals = [];
+		var uvs = [];
+
+		// helper variables
+
+		var i, s;
+		var vertex = new Vector3();
+		var uv = new Vector2();
+
+		// center point
+
+		vertices.push( 0, 0, 0 );
+		normals.push( 0, 0, 1 );
+		uvs.push( 0.5, 0.5 );
+
+		for ( s = 0, i = 3; s <= segments; s ++, i += 3 ) {
+
+			var segment = thetaStart + s / segments * thetaLength;
+
+			// vertex
+
+			vertex.x = radius * Math.cos( segment );
+			vertex.y = radius * Math.sin( segment );
+
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+			// normal
+
+			normals.push( 0, 0, 1 );
+
+			// uvs
+
+			uv.x = ( vertices[ i ] / radius + 1 ) / 2;
+			uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;
+
+			uvs.push( uv.x, uv.y );
+
+		}
+
+		// indices
+
+		for ( i = 1; i <= segments; i ++ ) {
+
+			indices.push( i, i + 1, 0 );
+
+		}
+
+		// build geometry
+
+		this.setIndex( indices );
+		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	}
+
+	CircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+	CircleBufferGeometry.prototype.constructor = CircleBufferGeometry;
+
+
+
+	var Geometries = /*#__PURE__*/Object.freeze({
+		WireframeGeometry: WireframeGeometry,
+		ParametricGeometry: ParametricGeometry,
+		ParametricBufferGeometry: ParametricBufferGeometry,
+		TetrahedronGeometry: TetrahedronGeometry,
+		TetrahedronBufferGeometry: TetrahedronBufferGeometry,
+		OctahedronGeometry: OctahedronGeometry,
+		OctahedronBufferGeometry: OctahedronBufferGeometry,
+		IcosahedronGeometry: IcosahedronGeometry,
+		IcosahedronBufferGeometry: IcosahedronBufferGeometry,
+		DodecahedronGeometry: DodecahedronGeometry,
+		DodecahedronBufferGeometry: DodecahedronBufferGeometry,
+		PolyhedronGeometry: PolyhedronGeometry,
+		PolyhedronBufferGeometry: PolyhedronBufferGeometry,
+		TubeGeometry: TubeGeometry,
+		TubeBufferGeometry: TubeBufferGeometry,
+		TorusKnotGeometry: TorusKnotGeometry,
+		TorusKnotBufferGeometry: TorusKnotBufferGeometry,
+		TorusGeometry: TorusGeometry,
+		TorusBufferGeometry: TorusBufferGeometry,
+		TextGeometry: TextGeometry,
+		TextBufferGeometry: TextBufferGeometry,
+		SphereGeometry: SphereGeometry,
+		SphereBufferGeometry: SphereBufferGeometry,
+		RingGeometry: RingGeometry,
+		RingBufferGeometry: RingBufferGeometry,
+		PlaneGeometry: PlaneGeometry,
+		PlaneBufferGeometry: PlaneBufferGeometry,
+		LatheGeometry: LatheGeometry,
+		LatheBufferGeometry: LatheBufferGeometry,
+		ShapeGeometry: ShapeGeometry,
+		ShapeBufferGeometry: ShapeBufferGeometry,
+		ExtrudeGeometry: ExtrudeGeometry,
+		ExtrudeBufferGeometry: ExtrudeBufferGeometry,
+		EdgesGeometry: EdgesGeometry,
+		ConeGeometry: ConeGeometry,
+		ConeBufferGeometry: ConeBufferGeometry,
+		CylinderGeometry: CylinderGeometry,
+		CylinderBufferGeometry: CylinderBufferGeometry,
+		CircleGeometry: CircleGeometry,
+		CircleBufferGeometry: CircleBufferGeometry,
+		BoxGeometry: BoxGeometry,
+		BoxBufferGeometry: BoxBufferGeometry
+	});
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 *
+	 * parameters = {
+	 *  color: <THREE.Color>
+	 * }
+	 */
+
+	function ShadowMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'ShadowMaterial';
+
+		this.color = new Color( 0x000000 );
+		this.transparent = true;
+
+		this.setValues( parameters );
+
+	}
+
+	ShadowMaterial.prototype = Object.create( Material.prototype );
+	ShadowMaterial.prototype.constructor = ShadowMaterial;
+
+	ShadowMaterial.prototype.isShadowMaterial = true;
+
+	ShadowMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.color.copy( source.color );
+
+		return this;
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function RawShaderMaterial( parameters ) {
+
+		ShaderMaterial.call( this, parameters );
+
+		this.type = 'RawShaderMaterial';
+
+	}
+
+	RawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype );
+	RawShaderMaterial.prototype.constructor = RawShaderMaterial;
+
+	RawShaderMaterial.prototype.isRawShaderMaterial = true;
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 * parameters = {
+	 *  color: <hex>,
+	 *  roughness: <float>,
+	 *  metalness: <float>,
+	 *  opacity: <float>,
+	 *
+	 *  map: new THREE.Texture( <Image> ),
+	 *
+	 *  lightMap: new THREE.Texture( <Image> ),
+	 *  lightMapIntensity: <float>
+	 *
+	 *  aoMap: new THREE.Texture( <Image> ),
+	 *  aoMapIntensity: <float>
+	 *
+	 *  emissive: <hex>,
+	 *  emissiveIntensity: <float>
+	 *  emissiveMap: new THREE.Texture( <Image> ),
+	 *
+	 *  bumpMap: new THREE.Texture( <Image> ),
+	 *  bumpScale: <float>,
+	 *
+	 *  normalMap: new THREE.Texture( <Image> ),
+	 *  normalMapType: THREE.TangentSpaceNormalMap,
+	 *  normalScale: <Vector2>,
+	 *
+	 *  displacementMap: new THREE.Texture( <Image> ),
+	 *  displacementScale: <float>,
+	 *  displacementBias: <float>,
+	 *
+	 *  roughnessMap: new THREE.Texture( <Image> ),
+	 *
+	 *  metalnessMap: new THREE.Texture( <Image> ),
+	 *
+	 *  alphaMap: new THREE.Texture( <Image> ),
+	 *
+	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
+	 *  envMapIntensity: <float>
+	 *
+	 *  refractionRatio: <float>,
+	 *
+	 *  wireframe: <boolean>,
+	 *  wireframeLinewidth: <float>,
+	 *
+	 *  skinning: <bool>,
+	 *  morphTargets: <bool>,
+	 *  morphNormals: <bool>
+	 * }
+	 */
+
+	function MeshStandardMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.defines = { 'STANDARD': '' };
+
+		this.type = 'MeshStandardMaterial';
+
+		this.color = new Color( 0xffffff ); // diffuse
+		this.roughness = 0.5;
+		this.metalness = 0.5;
+
+		this.map = null;
+
+		this.lightMap = null;
+		this.lightMapIntensity = 1.0;
+
+		this.aoMap = null;
+		this.aoMapIntensity = 1.0;
+
+		this.emissive = new Color( 0x000000 );
+		this.emissiveIntensity = 1.0;
+		this.emissiveMap = null;
+
+		this.bumpMap = null;
+		this.bumpScale = 1;
+
+		this.normalMap = null;
+		this.normalMapType = TangentSpaceNormalMap;
+		this.normalScale = new Vector2( 1, 1 );
+
+		this.displacementMap = null;
+		this.displacementScale = 1;
+		this.displacementBias = 0;
+
+		this.roughnessMap = null;
+
+		this.metalnessMap = null;
+
+		this.alphaMap = null;
+
+		this.envMap = null;
+		this.envMapIntensity = 1.0;
+
+		this.refractionRatio = 0.98;
+
+		this.wireframe = false;
+		this.wireframeLinewidth = 1;
+		this.wireframeLinecap = 'round';
+		this.wireframeLinejoin = 'round';
+
+		this.skinning = false;
+		this.morphTargets = false;
+		this.morphNormals = false;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshStandardMaterial.prototype = Object.create( Material.prototype );
+	MeshStandardMaterial.prototype.constructor = MeshStandardMaterial;
+
+	MeshStandardMaterial.prototype.isMeshStandardMaterial = true;
+
+	MeshStandardMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.defines = { 'STANDARD': '' };
+
+		this.color.copy( source.color );
+		this.roughness = source.roughness;
+		this.metalness = source.metalness;
+
+		this.map = source.map;
+
+		this.lightMap = source.lightMap;
+		this.lightMapIntensity = source.lightMapIntensity;
+
+		this.aoMap = source.aoMap;
+		this.aoMapIntensity = source.aoMapIntensity;
+
+		this.emissive.copy( source.emissive );
+		this.emissiveMap = source.emissiveMap;
+		this.emissiveIntensity = source.emissiveIntensity;
+
+		this.bumpMap = source.bumpMap;
+		this.bumpScale = source.bumpScale;
+
+		this.normalMap = source.normalMap;
+		this.normalMapType = source.normalMapType;
+		this.normalScale.copy( source.normalScale );
+
+		this.displacementMap = source.displacementMap;
+		this.displacementScale = source.displacementScale;
+		this.displacementBias = source.displacementBias;
+
+		this.roughnessMap = source.roughnessMap;
+
+		this.metalnessMap = source.metalnessMap;
+
+		this.alphaMap = source.alphaMap;
+
+		this.envMap = source.envMap;
+		this.envMapIntensity = source.envMapIntensity;
+
+		this.refractionRatio = source.refractionRatio;
+
+		this.wireframe = source.wireframe;
+		this.wireframeLinewidth = source.wireframeLinewidth;
+		this.wireframeLinecap = source.wireframeLinecap;
+		this.wireframeLinejoin = source.wireframeLinejoin;
+
+		this.skinning = source.skinning;
+		this.morphTargets = source.morphTargets;
+		this.morphNormals = source.morphNormals;
+
+		return this;
+
+	};
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 * parameters = {
+	 *  reflectivity: <float>
+	 *  clearCoat: <float>
+	 *  clearCoatRoughness: <float>
+	 * }
+	 */
+
+	function MeshPhysicalMaterial( parameters ) {
+
+		MeshStandardMaterial.call( this );
+
+		this.defines = { 'PHYSICAL': '' };
+
+		this.type = 'MeshPhysicalMaterial';
+
+		this.reflectivity = 0.5; // maps to F0 = 0.04
+
+		this.clearCoat = 0.0;
+		this.clearCoatRoughness = 0.0;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype );
+	MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;
+
+	MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;
+
+	MeshPhysicalMaterial.prototype.copy = function ( source ) {
+
+		MeshStandardMaterial.prototype.copy.call( this, source );
+
+		this.defines = { 'PHYSICAL': '' };
+
+		this.reflectivity = source.reflectivity;
+
+		this.clearCoat = source.clearCoat;
+		this.clearCoatRoughness = source.clearCoatRoughness;
+
+		return this;
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 *
+	 * parameters = {
+	 *  color: <hex>,
+	 *  specular: <hex>,
+	 *  shininess: <float>,
+	 *  opacity: <float>,
+	 *
+	 *  map: new THREE.Texture( <Image> ),
+	 *
+	 *  lightMap: new THREE.Texture( <Image> ),
+	 *  lightMapIntensity: <float>
+	 *
+	 *  aoMap: new THREE.Texture( <Image> ),
+	 *  aoMapIntensity: <float>
+	 *
+	 *  emissive: <hex>,
+	 *  emissiveIntensity: <float>
+	 *  emissiveMap: new THREE.Texture( <Image> ),
+	 *
+	 *  bumpMap: new THREE.Texture( <Image> ),
+	 *  bumpScale: <float>,
+	 *
+	 *  normalMap: new THREE.Texture( <Image> ),
+	 *  normalMapType: THREE.TangentSpaceNormalMap,
+	 *  normalScale: <Vector2>,
+	 *
+	 *  displacementMap: new THREE.Texture( <Image> ),
+	 *  displacementScale: <float>,
+	 *  displacementBias: <float>,
+	 *
+	 *  specularMap: new THREE.Texture( <Image> ),
+	 *
+	 *  alphaMap: new THREE.Texture( <Image> ),
+	 *
+	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
+	 *  combine: THREE.Multiply,
+	 *  reflectivity: <float>,
+	 *  refractionRatio: <float>,
+	 *
+	 *  wireframe: <boolean>,
+	 *  wireframeLinewidth: <float>,
+	 *
+	 *  skinning: <bool>,
+	 *  morphTargets: <bool>,
+	 *  morphNormals: <bool>
+	 * }
+	 */
+
+	function MeshPhongMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'MeshPhongMaterial';
+
+		this.color = new Color( 0xffffff ); // diffuse
+		this.specular = new Color( 0x111111 );
+		this.shininess = 30;
+
+		this.map = null;
+
+		this.lightMap = null;
+		this.lightMapIntensity = 1.0;
+
+		this.aoMap = null;
+		this.aoMapIntensity = 1.0;
+
+		this.emissive = new Color( 0x000000 );
+		this.emissiveIntensity = 1.0;
+		this.emissiveMap = null;
+
+		this.bumpMap = null;
+		this.bumpScale = 1;
+
+		this.normalMap = null;
+		this.normalMapType = TangentSpaceNormalMap;
+		this.normalScale = new Vector2( 1, 1 );
+
+		this.displacementMap = null;
+		this.displacementScale = 1;
+		this.displacementBias = 0;
+
+		this.specularMap = null;
+
+		this.alphaMap = null;
+
+		this.envMap = null;
+		this.combine = MultiplyOperation;
+		this.reflectivity = 1;
+		this.refractionRatio = 0.98;
+
+		this.wireframe = false;
+		this.wireframeLinewidth = 1;
+		this.wireframeLinecap = 'round';
+		this.wireframeLinejoin = 'round';
+
+		this.skinning = false;
+		this.morphTargets = false;
+		this.morphNormals = false;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshPhongMaterial.prototype = Object.create( Material.prototype );
+	MeshPhongMaterial.prototype.constructor = MeshPhongMaterial;
+
+	MeshPhongMaterial.prototype.isMeshPhongMaterial = true;
+
+	MeshPhongMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.color.copy( source.color );
+		this.specular.copy( source.specular );
+		this.shininess = source.shininess;
+
+		this.map = source.map;
+
+		this.lightMap = source.lightMap;
+		this.lightMapIntensity = source.lightMapIntensity;
+
+		this.aoMap = source.aoMap;
+		this.aoMapIntensity = source.aoMapIntensity;
+
+		this.emissive.copy( source.emissive );
+		this.emissiveMap = source.emissiveMap;
+		this.emissiveIntensity = source.emissiveIntensity;
+
+		this.bumpMap = source.bumpMap;
+		this.bumpScale = source.bumpScale;
+
+		this.normalMap = source.normalMap;
+		this.normalMapType = source.normalMapType;
+		this.normalScale.copy( source.normalScale );
+
+		this.displacementMap = source.displacementMap;
+		this.displacementScale = source.displacementScale;
+		this.displacementBias = source.displacementBias;
+
+		this.specularMap = source.specularMap;
+
+		this.alphaMap = source.alphaMap;
+
+		this.envMap = source.envMap;
+		this.combine = source.combine;
+		this.reflectivity = source.reflectivity;
+		this.refractionRatio = source.refractionRatio;
+
+		this.wireframe = source.wireframe;
+		this.wireframeLinewidth = source.wireframeLinewidth;
+		this.wireframeLinecap = source.wireframeLinecap;
+		this.wireframeLinejoin = source.wireframeLinejoin;
+
+		this.skinning = source.skinning;
+		this.morphTargets = source.morphTargets;
+		this.morphNormals = source.morphNormals;
+
+		return this;
+
+	};
+
+	/**
+	 * @author takahirox / http://github.com/takahirox
+	 *
+	 * parameters = {
+	 *  gradientMap: new THREE.Texture( <Image> )
+	 * }
+	 */
+
+	function MeshToonMaterial( parameters ) {
+
+		MeshPhongMaterial.call( this );
+
+		this.defines = { 'TOON': '' };
+
+		this.type = 'MeshToonMaterial';
+
+		this.gradientMap = null;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshToonMaterial.prototype = Object.create( MeshPhongMaterial.prototype );
+	MeshToonMaterial.prototype.constructor = MeshToonMaterial;
+
+	MeshToonMaterial.prototype.isMeshToonMaterial = true;
+
+	MeshToonMaterial.prototype.copy = function ( source ) {
+
+		MeshPhongMaterial.prototype.copy.call( this, source );
+
+		this.gradientMap = source.gradientMap;
+
+		return this;
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 * parameters = {
+	 *  opacity: <float>,
+	 *
+	 *  bumpMap: new THREE.Texture( <Image> ),
+	 *  bumpScale: <float>,
+	 *
+	 *  normalMap: new THREE.Texture( <Image> ),
+	 *  normalMapType: THREE.TangentSpaceNormalMap,
+	 *  normalScale: <Vector2>,
+	 *
+	 *  displacementMap: new THREE.Texture( <Image> ),
+	 *  displacementScale: <float>,
+	 *  displacementBias: <float>,
+	 *
+	 *  wireframe: <boolean>,
+	 *  wireframeLinewidth: <float>
+	 *
+	 *  skinning: <bool>,
+	 *  morphTargets: <bool>,
+	 *  morphNormals: <bool>
+	 * }
+	 */
+
+	function MeshNormalMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'MeshNormalMaterial';
+
+		this.bumpMap = null;
+		this.bumpScale = 1;
+
+		this.normalMap = null;
+		this.normalMapType = TangentSpaceNormalMap;
+		this.normalScale = new Vector2( 1, 1 );
+
+		this.displacementMap = null;
+		this.displacementScale = 1;
+		this.displacementBias = 0;
+
+		this.wireframe = false;
+		this.wireframeLinewidth = 1;
+
+		this.fog = false;
+		this.lights = false;
+
+		this.skinning = false;
+		this.morphTargets = false;
+		this.morphNormals = false;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshNormalMaterial.prototype = Object.create( Material.prototype );
+	MeshNormalMaterial.prototype.constructor = MeshNormalMaterial;
+
+	MeshNormalMaterial.prototype.isMeshNormalMaterial = true;
+
+	MeshNormalMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.bumpMap = source.bumpMap;
+		this.bumpScale = source.bumpScale;
+
+		this.normalMap = source.normalMap;
+		this.normalMapType = source.normalMapType;
+		this.normalScale.copy( source.normalScale );
+
+		this.displacementMap = source.displacementMap;
+		this.displacementScale = source.displacementScale;
+		this.displacementBias = source.displacementBias;
+
+		this.wireframe = source.wireframe;
+		this.wireframeLinewidth = source.wireframeLinewidth;
+
+		this.skinning = source.skinning;
+		this.morphTargets = source.morphTargets;
+		this.morphNormals = source.morphNormals;
+
+		return this;
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 *
+	 * parameters = {
+	 *  color: <hex>,
+	 *  opacity: <float>,
+	 *
+	 *  map: new THREE.Texture( <Image> ),
+	 *
+	 *  lightMap: new THREE.Texture( <Image> ),
+	 *  lightMapIntensity: <float>
+	 *
+	 *  aoMap: new THREE.Texture( <Image> ),
+	 *  aoMapIntensity: <float>
+	 *
+	 *  emissive: <hex>,
+	 *  emissiveIntensity: <float>
+	 *  emissiveMap: new THREE.Texture( <Image> ),
+	 *
+	 *  specularMap: new THREE.Texture( <Image> ),
+	 *
+	 *  alphaMap: new THREE.Texture( <Image> ),
+	 *
+	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
+	 *  combine: THREE.Multiply,
+	 *  reflectivity: <float>,
+	 *  refractionRatio: <float>,
+	 *
+	 *  wireframe: <boolean>,
+	 *  wireframeLinewidth: <float>,
+	 *
+	 *  skinning: <bool>,
+	 *  morphTargets: <bool>,
+	 *  morphNormals: <bool>
+	 * }
+	 */
+
+	function MeshLambertMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.type = 'MeshLambertMaterial';
+
+		this.color = new Color( 0xffffff ); // diffuse
+
+		this.map = null;
+
+		this.lightMap = null;
+		this.lightMapIntensity = 1.0;
+
+		this.aoMap = null;
+		this.aoMapIntensity = 1.0;
+
+		this.emissive = new Color( 0x000000 );
+		this.emissiveIntensity = 1.0;
+		this.emissiveMap = null;
+
+		this.specularMap = null;
+
+		this.alphaMap = null;
+
+		this.envMap = null;
+		this.combine = MultiplyOperation;
+		this.reflectivity = 1;
+		this.refractionRatio = 0.98;
+
+		this.wireframe = false;
+		this.wireframeLinewidth = 1;
+		this.wireframeLinecap = 'round';
+		this.wireframeLinejoin = 'round';
+
+		this.skinning = false;
+		this.morphTargets = false;
+		this.morphNormals = false;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshLambertMaterial.prototype = Object.create( Material.prototype );
+	MeshLambertMaterial.prototype.constructor = MeshLambertMaterial;
+
+	MeshLambertMaterial.prototype.isMeshLambertMaterial = true;
+
+	MeshLambertMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.color.copy( source.color );
+
+		this.map = source.map;
+
+		this.lightMap = source.lightMap;
+		this.lightMapIntensity = source.lightMapIntensity;
+
+		this.aoMap = source.aoMap;
+		this.aoMapIntensity = source.aoMapIntensity;
+
+		this.emissive.copy( source.emissive );
+		this.emissiveMap = source.emissiveMap;
+		this.emissiveIntensity = source.emissiveIntensity;
+
+		this.specularMap = source.specularMap;
+
+		this.alphaMap = source.alphaMap;
+
+		this.envMap = source.envMap;
+		this.combine = source.combine;
+		this.reflectivity = source.reflectivity;
+		this.refractionRatio = source.refractionRatio;
+
+		this.wireframe = source.wireframe;
+		this.wireframeLinewidth = source.wireframeLinewidth;
+		this.wireframeLinecap = source.wireframeLinecap;
+		this.wireframeLinejoin = source.wireframeLinejoin;
+
+		this.skinning = source.skinning;
+		this.morphTargets = source.morphTargets;
+		this.morphNormals = source.morphNormals;
+
+		return this;
+
+	};
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 * parameters = {
+	 *  color: <hex>,
+	 *  opacity: <float>,
+	 *
+	 *  matcap: new THREE.Texture( <Image> ),
+	 *
+	 *  map: new THREE.Texture( <Image> ),
+	 *
+	 *  bumpMap: new THREE.Texture( <Image> ),
+	 *  bumpScale: <float>,
+	 *
+	 *  normalMap: new THREE.Texture( <Image> ),
+	 *  normalMapType: THREE.TangentSpaceNormalMap,
+	 *  normalScale: <Vector2>,
+	 *
+	 *  displacementMap: new THREE.Texture( <Image> ),
+	 *  displacementScale: <float>,
+	 *  displacementBias: <float>,
+	 *
+	 *  alphaMap: new THREE.Texture( <Image> ),
+	 *
+	 *  skinning: <bool>,
+	 *  morphTargets: <bool>,
+	 *  morphNormals: <bool>
+	 * }
+	 */
+
+	function MeshMatcapMaterial( parameters ) {
+
+		Material.call( this );
+
+		this.defines = { 'MATCAP': '' };
+
+		this.type = 'MeshMatcapMaterial';
+
+		this.color = new Color( 0xffffff ); // diffuse
+
+		this.matcap = null;
+
+		this.map = null;
+
+		this.bumpMap = null;
+		this.bumpScale = 1;
+
+		this.normalMap = null;
+		this.normalMapType = TangentSpaceNormalMap;
+		this.normalScale = new Vector2( 1, 1 );
+
+		this.displacementMap = null;
+		this.displacementScale = 1;
+		this.displacementBias = 0;
+
+		this.alphaMap = null;
+
+		this.skinning = false;
+		this.morphTargets = false;
+		this.morphNormals = false;
+
+		this.lights = false;
+
+		this.setValues( parameters );
+
+	}
+
+	MeshMatcapMaterial.prototype = Object.create( Material.prototype );
+	MeshMatcapMaterial.prototype.constructor = MeshMatcapMaterial;
+
+	MeshMatcapMaterial.prototype.isMeshMatcapMaterial = true;
+
+	MeshMatcapMaterial.prototype.copy = function ( source ) {
+
+		Material.prototype.copy.call( this, source );
+
+		this.defines = { 'MATCAP': '' };
+
+		this.color.copy( source.color );
+
+		this.matcap = source.matcap;
+
+		this.map = source.map;
+
+		this.bumpMap = source.bumpMap;
+		this.bumpScale = source.bumpScale;
+
+		this.normalMap = source.normalMap;
+		this.normalMapType = source.normalMapType;
+		this.normalScale.copy( source.normalScale );
+
+		this.displacementMap = source.displacementMap;
+		this.displacementScale = source.displacementScale;
+		this.displacementBias = source.displacementBias;
+
+		this.alphaMap = source.alphaMap;
+
+		this.skinning = source.skinning;
+		this.morphTargets = source.morphTargets;
+		this.morphNormals = source.morphNormals;
+
+		return this;
+
+	};
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 *
+	 * parameters = {
+	 *  color: <hex>,
+	 *  opacity: <float>,
+	 *
+	 *  linewidth: <float>,
+	 *
+	 *  scale: <float>,
+	 *  dashSize: <float>,
+	 *  gapSize: <float>
+	 * }
+	 */
+
+	function LineDashedMaterial( parameters ) {
+
+		LineBasicMaterial.call( this );
+
+		this.type = 'LineDashedMaterial';
+
+		this.scale = 1;
+		this.dashSize = 3;
+		this.gapSize = 1;
+
+		this.setValues( parameters );
+
+	}
+
+	LineDashedMaterial.prototype = Object.create( LineBasicMaterial.prototype );
+	LineDashedMaterial.prototype.constructor = LineDashedMaterial;
+
+	LineDashedMaterial.prototype.isLineDashedMaterial = true;
+
+	LineDashedMaterial.prototype.copy = function ( source ) {
+
+		LineBasicMaterial.prototype.copy.call( this, source );
+
+		this.scale = source.scale;
+		this.dashSize = source.dashSize;
+		this.gapSize = source.gapSize;
+
+		return this;
+
+	};
+
+
+
+	var Materials = /*#__PURE__*/Object.freeze({
+		ShadowMaterial: ShadowMaterial,
+		SpriteMaterial: SpriteMaterial,
+		RawShaderMaterial: RawShaderMaterial,
+		ShaderMaterial: ShaderMaterial,
+		PointsMaterial: PointsMaterial,
+		MeshPhysicalMaterial: MeshPhysicalMaterial,
+		MeshStandardMaterial: MeshStandardMaterial,
+		MeshPhongMaterial: MeshPhongMaterial,
+		MeshToonMaterial: MeshToonMaterial,
+		MeshNormalMaterial: MeshNormalMaterial,
+		MeshLambertMaterial: MeshLambertMaterial,
+		MeshDepthMaterial: MeshDepthMaterial,
+		MeshDistanceMaterial: MeshDistanceMaterial,
+		MeshBasicMaterial: MeshBasicMaterial,
+		MeshMatcapMaterial: MeshMatcapMaterial,
+		LineDashedMaterial: LineDashedMaterial,
+		LineBasicMaterial: LineBasicMaterial,
+		Material: Material
+	});
+
+	/**
+	 * @author tschw
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 */
+
+	var AnimationUtils = {
+
+		// same as Array.prototype.slice, but also works on typed arrays
+		arraySlice: function ( array, from, to ) {
+
+			if ( AnimationUtils.isTypedArray( array ) ) {
+
+				// in ios9 array.subarray(from, undefined) will return empty array
+				// but array.subarray(from) or array.subarray(from, len) is correct
+				return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );
+
+			}
+
+			return array.slice( from, to );
+
+		},
+
+		// converts an array to a specific type
+		convertArray: function ( array, type, forceClone ) {
+
+			if ( ! array || // let 'undefined' and 'null' pass
+				! forceClone && array.constructor === type ) return array;
+
+			if ( typeof type.BYTES_PER_ELEMENT === 'number' ) {
+
+				return new type( array ); // create typed array
+
+			}
+
+			return Array.prototype.slice.call( array ); // create Array
+
+		},
+
+		isTypedArray: function ( object ) {
+
+			return ArrayBuffer.isView( object ) &&
+				! ( object instanceof DataView );
+
+		},
+
+		// returns an array by which times and values can be sorted
+		getKeyframeOrder: function ( times ) {
+
+			function compareTime( i, j ) {
+
+				return times[ i ] - times[ j ];
+
+			}
+
+			var n = times.length;
+			var result = new Array( n );
+			for ( var i = 0; i !== n; ++ i ) result[ i ] = i;
+
+			result.sort( compareTime );
+
+			return result;
+
+		},
+
+		// uses the array previously returned by 'getKeyframeOrder' to sort data
+		sortedArray: function ( values, stride, order ) {
+
+			var nValues = values.length;
+			var result = new values.constructor( nValues );
+
+			for ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {
+
+				var srcOffset = order[ i ] * stride;
+
+				for ( var j = 0; j !== stride; ++ j ) {
+
+					result[ dstOffset ++ ] = values[ srcOffset + j ];
+
+				}
+
+			}
+
+			return result;
+
+		},
+
+		// function for parsing AOS keyframe formats
+		flattenJSON: function ( jsonKeys, times, values, valuePropertyName ) {
+
+			var i = 1, key = jsonKeys[ 0 ];
+
+			while ( key !== undefined && key[ valuePropertyName ] === undefined ) {
+
+				key = jsonKeys[ i ++ ];
+
+			}
+
+			if ( key === undefined ) return; // no data
+
+			var value = key[ valuePropertyName ];
+			if ( value === undefined ) return; // no data
+
+			if ( Array.isArray( value ) ) {
+
+				do {
+
+					value = key[ valuePropertyName ];
+
+					if ( value !== undefined ) {
+
+						times.push( key.time );
+						values.push.apply( values, value ); // push all elements
+
+					}
+
+					key = jsonKeys[ i ++ ];
+
+				} while ( key !== undefined );
+
+			} else if ( value.toArray !== undefined ) {
+
+				// ...assume THREE.Math-ish
+
+				do {
+
+					value = key[ valuePropertyName ];
+
+					if ( value !== undefined ) {
+
+						times.push( key.time );
+						value.toArray( values, values.length );
+
+					}
+
+					key = jsonKeys[ i ++ ];
+
+				} while ( key !== undefined );
+
+			} else {
+
+				// otherwise push as-is
+
+				do {
+
+					value = key[ valuePropertyName ];
+
+					if ( value !== undefined ) {
+
+						times.push( key.time );
+						values.push( value );
+
+					}
+
+					key = jsonKeys[ i ++ ];
+
+				} while ( key !== undefined );
+
+			}
+
+		}
+
+	};
+
+	/**
+	 * Abstract base class of interpolants over parametric samples.
+	 *
+	 * The parameter domain is one dimensional, typically the time or a path
+	 * along a curve defined by the data.
+	 *
+	 * The sample values can have any dimensionality and derived classes may
+	 * apply special interpretations to the data.
+	 *
+	 * This class provides the interval seek in a Template Method, deferring
+	 * the actual interpolation to derived classes.
+	 *
+	 * Time complexity is O(1) for linear access crossing at most two points
+	 * and O(log N) for random access, where N is the number of positions.
+	 *
+	 * References:
+	 *
+	 * 		http://www.oodesign.com/template-method-pattern.html
+	 *
+	 * @author tschw
+	 */
+
+	function Interpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+		this.parameterPositions = parameterPositions;
+		this._cachedIndex = 0;
+
+		this.resultBuffer = resultBuffer !== undefined ?
+			resultBuffer : new sampleValues.constructor( sampleSize );
+		this.sampleValues = sampleValues;
+		this.valueSize = sampleSize;
+
+	}
+
+	Object.assign( Interpolant.prototype, {
+
+		evaluate: function ( t ) {
+
+			var pp = this.parameterPositions,
+				i1 = this._cachedIndex,
+
+				t1 = pp[ i1 ],
+				t0 = pp[ i1 - 1 ];
+
+			validate_interval: {
+
+				seek: {
+
+					var right;
+
+					linear_scan: {
+
+						//- See http://jsperf.com/comparison-to-undefined/3
+						//- slower code:
+						//-
+						//- 				if ( t >= t1 || t1 === undefined ) {
+						forward_scan: if ( ! ( t < t1 ) ) {
+
+							for ( var giveUpAt = i1 + 2; ; ) {
+
+								if ( t1 === undefined ) {
+
+									if ( t < t0 ) break forward_scan;
+
+									// after end
+
+									i1 = pp.length;
+									this._cachedIndex = i1;
+									return this.afterEnd_( i1 - 1, t, t0 );
+
+								}
+
+								if ( i1 === giveUpAt ) break; // this loop
+
+								t0 = t1;
+								t1 = pp[ ++ i1 ];
+
+								if ( t < t1 ) {
+
+									// we have arrived at the sought interval
+									break seek;
+
+								}
+
+							}
+
+							// prepare binary search on the right side of the index
+							right = pp.length;
+							break linear_scan;
+
+						}
+
+						//- slower code:
+						//-					if ( t < t0 || t0 === undefined ) {
+						if ( ! ( t >= t0 ) ) {
+
+							// looping?
+
+							var t1global = pp[ 1 ];
+
+							if ( t < t1global ) {
+
+								i1 = 2; // + 1, using the scan for the details
+								t0 = t1global;
+
+							}
+
+							// linear reverse scan
+
+							for ( var giveUpAt = i1 - 2; ; ) {
+
+								if ( t0 === undefined ) {
+
+									// before start
+
+									this._cachedIndex = 0;
+									return this.beforeStart_( 0, t, t1 );
+
+								}
+
+								if ( i1 === giveUpAt ) break; // this loop
+
+								t1 = t0;
+								t0 = pp[ -- i1 - 1 ];
+
+								if ( t >= t0 ) {
+
+									// we have arrived at the sought interval
+									break seek;
+
+								}
+
+							}
+
+							// prepare binary search on the left side of the index
+							right = i1;
+							i1 = 0;
+							break linear_scan;
+
+						}
+
+						// the interval is valid
+
+						break validate_interval;
+
+					} // linear scan
+
+					// binary search
+
+					while ( i1 < right ) {
+
+						var mid = ( i1 + right ) >>> 1;
+
+						if ( t < pp[ mid ] ) {
+
+							right = mid;
+
+						} else {
+
+							i1 = mid + 1;
+
+						}
+
+					}
+
+					t1 = pp[ i1 ];
+					t0 = pp[ i1 - 1 ];
+
+					// check boundary cases, again
+
+					if ( t0 === undefined ) {
+
+						this._cachedIndex = 0;
+						return this.beforeStart_( 0, t, t1 );
+
+					}
+
+					if ( t1 === undefined ) {
+
+						i1 = pp.length;
+						this._cachedIndex = i1;
+						return this.afterEnd_( i1 - 1, t0, t );
+
+					}
+
+				} // seek
+
+				this._cachedIndex = i1;
+
+				this.intervalChanged_( i1, t0, t1 );
+
+			} // validate_interval
+
+			return this.interpolate_( i1, t0, t, t1 );
+
+		},
+
+		settings: null, // optional, subclass-specific settings structure
+		// Note: The indirection allows central control of many interpolants.
+
+		// --- Protected interface
+
+		DefaultSettings_: {},
+
+		getSettings_: function () {
+
+			return this.settings || this.DefaultSettings_;
+
+		},
+
+		copySampleValue_: function ( index ) {
+
+			// copies a sample value to the result buffer
+
+			var result = this.resultBuffer,
+				values = this.sampleValues,
+				stride = this.valueSize,
+				offset = index * stride;
+
+			for ( var i = 0; i !== stride; ++ i ) {
+
+				result[ i ] = values[ offset + i ];
+
+			}
+
+			return result;
+
+		},
+
+		// Template methods for derived classes:
+
+		interpolate_: function ( /* i1, t0, t, t1 */ ) {
+
+			throw new Error( 'call to abstract method' );
+			// implementations shall return this.resultBuffer
+
+		},
+
+		intervalChanged_: function ( /* i1, t0, t1 */ ) {
+
+			// empty
+
+		}
+
+	} );
+
+	//!\ DECLARE ALIAS AFTER assign prototype !
+	Object.assign( Interpolant.prototype, {
+
+		//( 0, t, t0 ), returns this.resultBuffer
+		beforeStart_: Interpolant.prototype.copySampleValue_,
+
+		//( N-1, tN-1, t ), returns this.resultBuffer
+		afterEnd_: Interpolant.prototype.copySampleValue_,
+
+	} );
+
+	/**
+	 * Fast and simple cubic spline interpolant.
+	 *
+	 * It was derived from a Hermitian construction setting the first derivative
+	 * at each sample position to the linear slope between neighboring positions
+	 * over their parameter interval.
+	 *
+	 * @author tschw
+	 */
+
+	function CubicInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
+
+		this._weightPrev = - 0;
+		this._offsetPrev = - 0;
+		this._weightNext = - 0;
+		this._offsetNext = - 0;
+
+	}
+
+	CubicInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
+
+		constructor: CubicInterpolant,
+
+		DefaultSettings_: {
+
+			endingStart: ZeroCurvatureEnding,
+			endingEnd: ZeroCurvatureEnding
+
+		},
+
+		intervalChanged_: function ( i1, t0, t1 ) {
+
+			var pp = this.parameterPositions,
+				iPrev = i1 - 2,
+				iNext = i1 + 1,
+
+				tPrev = pp[ iPrev ],
+				tNext = pp[ iNext ];
+
+			if ( tPrev === undefined ) {
+
+				switch ( this.getSettings_().endingStart ) {
+
+					case ZeroSlopeEnding:
+
+						// f'(t0) = 0
+						iPrev = i1;
+						tPrev = 2 * t0 - t1;
+
+						break;
+
+					case WrapAroundEnding:
+
+						// use the other end of the curve
+						iPrev = pp.length - 2;
+						tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];
+
+						break;
+
+					default: // ZeroCurvatureEnding
+
+						// f''(t0) = 0 a.k.a. Natural Spline
+						iPrev = i1;
+						tPrev = t1;
+
+				}
+
+			}
+
+			if ( tNext === undefined ) {
+
+				switch ( this.getSettings_().endingEnd ) {
+
+					case ZeroSlopeEnding:
+
+						// f'(tN) = 0
+						iNext = i1;
+						tNext = 2 * t1 - t0;
+
+						break;
+
+					case WrapAroundEnding:
+
+						// use the other end of the curve
+						iNext = 1;
+						tNext = t1 + pp[ 1 ] - pp[ 0 ];
+
+						break;
+
+					default: // ZeroCurvatureEnding
+
+						// f''(tN) = 0, a.k.a. Natural Spline
+						iNext = i1 - 1;
+						tNext = t0;
+
+				}
+
+			}
+
+			var halfDt = ( t1 - t0 ) * 0.5,
+				stride = this.valueSize;
+
+			this._weightPrev = halfDt / ( t0 - tPrev );
+			this._weightNext = halfDt / ( tNext - t1 );
+			this._offsetPrev = iPrev * stride;
+			this._offsetNext = iNext * stride;
+
+		},
+
+		interpolate_: function ( i1, t0, t, t1 ) {
+
+			var result = this.resultBuffer,
+				values = this.sampleValues,
+				stride = this.valueSize,
+
+				o1 = i1 * stride,		o0 = o1 - stride,
+				oP = this._offsetPrev, 	oN = this._offsetNext,
+				wP = this._weightPrev,	wN = this._weightNext,
+
+				p = ( t - t0 ) / ( t1 - t0 ),
+				pp = p * p,
+				ppp = pp * p;
+
+			// evaluate polynomials
+
+			var sP = - wP * ppp + 2 * wP * pp - wP * p;
+			var s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1;
+			var s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;
+			var sN = wN * ppp - wN * pp;
+
+			// combine data linearly
+
+			for ( var i = 0; i !== stride; ++ i ) {
+
+				result[ i ] =
+						sP * values[ oP + i ] +
+						s0 * values[ o0 + i ] +
+						s1 * values[ o1 + i ] +
+						sN * values[ oN + i ];
+
+			}
+
+			return result;
+
+		}
+
+	} );
+
+	/**
+	 * @author tschw
+	 */
+
+	function LinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
+
+	}
+
+	LinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
+
+		constructor: LinearInterpolant,
+
+		interpolate_: function ( i1, t0, t, t1 ) {
+
+			var result = this.resultBuffer,
+				values = this.sampleValues,
+				stride = this.valueSize,
+
+				offset1 = i1 * stride,
+				offset0 = offset1 - stride,
+
+				weight1 = ( t - t0 ) / ( t1 - t0 ),
+				weight0 = 1 - weight1;
+
+			for ( var i = 0; i !== stride; ++ i ) {
+
+				result[ i ] =
+						values[ offset0 + i ] * weight0 +
+						values[ offset1 + i ] * weight1;
+
+			}
+
+			return result;
+
+		}
+
+	} );
+
+	/**
+	 *
+	 * Interpolant that evaluates to the sample value at the position preceeding
+	 * the parameter.
+	 *
+	 * @author tschw
+	 */
+
+	function DiscreteInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
+
+	}
+
+	DiscreteInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
+
+		constructor: DiscreteInterpolant,
+
+		interpolate_: function ( i1 /*, t0, t, t1 */ ) {
+
+			return this.copySampleValue_( i1 - 1 );
+
+		}
+
+	} );
+
+	/**
+	 *
+	 * A timed sequence of keyframes for a specific property.
+	 *
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	function KeyframeTrack( name, times, values, interpolation ) {
+
+		if ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' );
+		if ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name );
+
+		this.name = name;
+
+		this.times = AnimationUtils.convertArray( times, this.TimeBufferType );
+		this.values = AnimationUtils.convertArray( values, this.ValueBufferType );
+
+		this.setInterpolation( interpolation || this.DefaultInterpolation );
+
+	}
+
+	// Static methods
+
+	Object.assign( KeyframeTrack, {
+
+		// Serialization (in static context, because of constructor invocation
+		// and automatic invocation of .toJSON):
+
+		toJSON: function ( track ) {
+
+			var trackType = track.constructor;
+
+			var json;
+
+			// derived classes can define a static toJSON method
+			if ( trackType.toJSON !== undefined ) {
+
+				json = trackType.toJSON( track );
+
+			} else {
+
+				// by default, we assume the data can be serialized as-is
+				json = {
+
+					'name': track.name,
+					'times': AnimationUtils.convertArray( track.times, Array ),
+					'values': AnimationUtils.convertArray( track.values, Array )
+
+				};
+
+				var interpolation = track.getInterpolation();
+
+				if ( interpolation !== track.DefaultInterpolation ) {
+
+					json.interpolation = interpolation;
+
+				}
+
+			}
+
+			json.type = track.ValueTypeName; // mandatory
+
+			return json;
+
+		}
+
+	} );
+
+	Object.assign( KeyframeTrack.prototype, {
+
+		constructor: KeyframeTrack,
+
+		TimeBufferType: Float32Array,
+
+		ValueBufferType: Float32Array,
+
+		DefaultInterpolation: InterpolateLinear,
+
+		InterpolantFactoryMethodDiscrete: function ( result ) {
+
+			return new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result );
+
+		},
+
+		InterpolantFactoryMethodLinear: function ( result ) {
+
+			return new LinearInterpolant( this.times, this.values, this.getValueSize(), result );
+
+		},
+
+		InterpolantFactoryMethodSmooth: function ( result ) {
+
+			return new CubicInterpolant( this.times, this.values, this.getValueSize(), result );
+
+		},
+
+		setInterpolation: function ( interpolation ) {
+
+			var factoryMethod;
+
+			switch ( interpolation ) {
+
+				case InterpolateDiscrete:
+
+					factoryMethod = this.InterpolantFactoryMethodDiscrete;
+
+					break;
+
+				case InterpolateLinear:
+
+					factoryMethod = this.InterpolantFactoryMethodLinear;
+
+					break;
+
+				case InterpolateSmooth:
+
+					factoryMethod = this.InterpolantFactoryMethodSmooth;
+
+					break;
+
+			}
+
+			if ( factoryMethod === undefined ) {
+
+				var message = "unsupported interpolation for " +
+					this.ValueTypeName + " keyframe track named " + this.name;
+
+				if ( this.createInterpolant === undefined ) {
+
+					// fall back to default, unless the default itself is messed up
+					if ( interpolation !== this.DefaultInterpolation ) {
+
+						this.setInterpolation( this.DefaultInterpolation );
+
+					} else {
+
+						throw new Error( message ); // fatal, in this case
+
+					}
+
+				}
+
+				console.warn( 'THREE.KeyframeTrack:', message );
+				return this;
+
+			}
+
+			this.createInterpolant = factoryMethod;
+
+			return this;
+
+		},
+
+		getInterpolation: function () {
+
+			switch ( this.createInterpolant ) {
+
+				case this.InterpolantFactoryMethodDiscrete:
+
+					return InterpolateDiscrete;
+
+				case this.InterpolantFactoryMethodLinear:
+
+					return InterpolateLinear;
+
+				case this.InterpolantFactoryMethodSmooth:
+
+					return InterpolateSmooth;
+
+			}
+
+		},
+
+		getValueSize: function () {
+
+			return this.values.length / this.times.length;
+
+		},
+
+		// move all keyframes either forwards or backwards in time
+		shift: function ( timeOffset ) {
+
+			if ( timeOffset !== 0.0 ) {
+
+				var times = this.times;
+
+				for ( var i = 0, n = times.length; i !== n; ++ i ) {
+
+					times[ i ] += timeOffset;
+
+				}
+
+			}
+
+			return this;
+
+		},
+
+		// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
+		scale: function ( timeScale ) {
+
+			if ( timeScale !== 1.0 ) {
+
+				var times = this.times;
+
+				for ( var i = 0, n = times.length; i !== n; ++ i ) {
+
+					times[ i ] *= timeScale;
+
+				}
+
+			}
+
+			return this;
+
+		},
+
+		// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
+		// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
+		trim: function ( startTime, endTime ) {
+
+			var times = this.times,
+				nKeys = times.length,
+				from = 0,
+				to = nKeys - 1;
+
+			while ( from !== nKeys && times[ from ] < startTime ) {
+
+				++ from;
+
+			}
+
+			while ( to !== - 1 && times[ to ] > endTime ) {
+
+				-- to;
+
+			}
+
+			++ to; // inclusive -> exclusive bound
+
+			if ( from !== 0 || to !== nKeys ) {
+
+				// empty tracks are forbidden, so keep at least one keyframe
+				if ( from >= to ) to = Math.max( to, 1 ), from = to - 1;
+
+				var stride = this.getValueSize();
+				this.times = AnimationUtils.arraySlice( times, from, to );
+				this.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride );
+
+			}
+
+			return this;
+
+		},
+
+		// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
+		validate: function () {
+
+			var valid = true;
+
+			var valueSize = this.getValueSize();
+			if ( valueSize - Math.floor( valueSize ) !== 0 ) {
+
+				console.error( 'THREE.KeyframeTrack: Invalid value size in track.', this );
+				valid = false;
+
+			}
+
+			var times = this.times,
+				values = this.values,
+
+				nKeys = times.length;
+
+			if ( nKeys === 0 ) {
+
+				console.error( 'THREE.KeyframeTrack: Track is empty.', this );
+				valid = false;
+
+			}
+
+			var prevTime = null;
+
+			for ( var i = 0; i !== nKeys; i ++ ) {
+
+				var currTime = times[ i ];
+
+				if ( typeof currTime === 'number' && isNaN( currTime ) ) {
+
+					console.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime );
+					valid = false;
+					break;
+
+				}
+
+				if ( prevTime !== null && prevTime > currTime ) {
+
+					console.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime );
+					valid = false;
+					break;
+
+				}
+
+				prevTime = currTime;
+
+			}
+
+			if ( values !== undefined ) {
+
+				if ( AnimationUtils.isTypedArray( values ) ) {
+
+					for ( var i = 0, n = values.length; i !== n; ++ i ) {
+
+						var value = values[ i ];
+
+						if ( isNaN( value ) ) {
+
+							console.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value );
+							valid = false;
+							break;
+
+						}
+
+					}
+
+				}
+
+			}
+
+			return valid;
+
+		},
+
+		// removes equivalent sequential keys as common in morph target sequences
+		// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
+		optimize: function () {
+
+			var times = this.times,
+				values = this.values,
+				stride = this.getValueSize(),
+
+				smoothInterpolation = this.getInterpolation() === InterpolateSmooth,
+
+				writeIndex = 1,
+				lastIndex = times.length - 1;
+
+			for ( var i = 1; i < lastIndex; ++ i ) {
+
+				var keep = false;
+
+				var time = times[ i ];
+				var timeNext = times[ i + 1 ];
+
+				// remove adjacent keyframes scheduled at the same time
+
+				if ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {
+
+					if ( ! smoothInterpolation ) {
+
+						// remove unnecessary keyframes same as their neighbors
+
+						var offset = i * stride,
+							offsetP = offset - stride,
+							offsetN = offset + stride;
+
+						for ( var j = 0; j !== stride; ++ j ) {
+
+							var value = values[ offset + j ];
+
+							if ( value !== values[ offsetP + j ] ||
+								value !== values[ offsetN + j ] ) {
+
+								keep = true;
+								break;
+
+							}
+
+						}
+
+					} else {
+
+						keep = true;
+
+					}
+
+				}
+
+				// in-place compaction
+
+				if ( keep ) {
+
+					if ( i !== writeIndex ) {
+
+						times[ writeIndex ] = times[ i ];
+
+						var readOffset = i * stride,
+							writeOffset = writeIndex * stride;
+
+						for ( var j = 0; j !== stride; ++ j ) {
+
+							values[ writeOffset + j ] = values[ readOffset + j ];
+
+						}
+
+					}
+
+					++ writeIndex;
+
+				}
+
+			}
+
+			// flush last keyframe (compaction looks ahead)
+
+			if ( lastIndex > 0 ) {
+
+				times[ writeIndex ] = times[ lastIndex ];
+
+				for ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) {
+
+					values[ writeOffset + j ] = values[ readOffset + j ];
+
+				}
+
+				++ writeIndex;
+
+			}
+
+			if ( writeIndex !== times.length ) {
+
+				this.times = AnimationUtils.arraySlice( times, 0, writeIndex );
+				this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );
+
+			}
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			var times = AnimationUtils.arraySlice( this.times, 0 );
+			var values = AnimationUtils.arraySlice( this.values, 0 );
+
+			var TypedKeyframeTrack = this.constructor;
+			var track = new TypedKeyframeTrack( this.name, times, values );
+
+			// Interpolant argument to constructor is not saved, so copy the factory method directly.
+			track.createInterpolant = this.createInterpolant;
+
+			return track;
+
+		}
+
+	} );
+
+	/**
+	 *
+	 * A Track of Boolean keyframe values.
+	 *
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	function BooleanKeyframeTrack( name, times, values ) {
+
+		KeyframeTrack.call( this, name, times, values );
+
+	}
+
+	BooleanKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
+
+		constructor: BooleanKeyframeTrack,
+
+		ValueTypeName: 'bool',
+		ValueBufferType: Array,
+
+		DefaultInterpolation: InterpolateDiscrete,
+
+		InterpolantFactoryMethodLinear: undefined,
+		InterpolantFactoryMethodSmooth: undefined
+
+		// Note: Actually this track could have a optimized / compressed
+		// representation of a single value and a custom interpolant that
+		// computes "firstValue ^ isOdd( index )".
+
+	} );
+
+	/**
+	 *
+	 * A Track of keyframe values that represent color.
+	 *
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	function ColorKeyframeTrack( name, times, values, interpolation ) {
+
+		KeyframeTrack.call( this, name, times, values, interpolation );
+
+	}
+
+	ColorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
+
+		constructor: ColorKeyframeTrack,
+
+		ValueTypeName: 'color'
+
+		// ValueBufferType is inherited
+
+		// DefaultInterpolation is inherited
+
+		// Note: Very basic implementation and nothing special yet.
+		// However, this is the place for color space parameterization.
+
+	} );
+
+	/**
+	 *
+	 * A Track of numeric keyframe values.
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	function NumberKeyframeTrack( name, times, values, interpolation ) {
+
+		KeyframeTrack.call( this, name, times, values, interpolation );
+
+	}
+
+	NumberKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
+
+		constructor: NumberKeyframeTrack,
+
+		ValueTypeName: 'number'
+
+		// ValueBufferType is inherited
+
+		// DefaultInterpolation is inherited
+
+	} );
+
+	/**
+	 * Spherical linear unit quaternion interpolant.
+	 *
+	 * @author tschw
+	 */
+
+	function QuaternionLinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
+
+	}
+
+	QuaternionLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
+
+		constructor: QuaternionLinearInterpolant,
+
+		interpolate_: function ( i1, t0, t, t1 ) {
+
+			var result = this.resultBuffer,
+				values = this.sampleValues,
+				stride = this.valueSize,
+
+				offset = i1 * stride,
+
+				alpha = ( t - t0 ) / ( t1 - t0 );
+
+			for ( var end = offset + stride; offset !== end; offset += 4 ) {
+
+				Quaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha );
+
+			}
+
+			return result;
+
+		}
+
+	} );
+
+	/**
+	 *
+	 * A Track of quaternion keyframe values.
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	function QuaternionKeyframeTrack( name, times, values, interpolation ) {
+
+		KeyframeTrack.call( this, name, times, values, interpolation );
+
+	}
+
+	QuaternionKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
+
+		constructor: QuaternionKeyframeTrack,
+
+		ValueTypeName: 'quaternion',
+
+		// ValueBufferType is inherited
+
+		DefaultInterpolation: InterpolateLinear,
+
+		InterpolantFactoryMethodLinear: function ( result ) {
+
+			return new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result );
+
+		},
+
+		InterpolantFactoryMethodSmooth: undefined // not yet implemented
+
+	} );
+
+	/**
+	 *
+	 * A Track that interpolates Strings
+	 *
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	function StringKeyframeTrack( name, times, values, interpolation ) {
+
+		KeyframeTrack.call( this, name, times, values, interpolation );
+
+	}
+
+	StringKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
+
+		constructor: StringKeyframeTrack,
+
+		ValueTypeName: 'string',
+		ValueBufferType: Array,
+
+		DefaultInterpolation: InterpolateDiscrete,
+
+		InterpolantFactoryMethodLinear: undefined,
+
+		InterpolantFactoryMethodSmooth: undefined
+
+	} );
+
+	/**
+	 *
+	 * A Track of vectored keyframe values.
+	 *
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	function VectorKeyframeTrack( name, times, values, interpolation ) {
+
+		KeyframeTrack.call( this, name, times, values, interpolation );
+
+	}
+
+	VectorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
+
+		constructor: VectorKeyframeTrack,
+
+		ValueTypeName: 'vector'
+
+		// ValueBufferType is inherited
+
+		// DefaultInterpolation is inherited
+
+	} );
+
+	/**
+	 *
+	 * Reusable set of Tracks that represent an animation.
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 */
+
+	function AnimationClip( name, duration, tracks ) {
+
+		this.name = name;
+		this.tracks = tracks;
+		this.duration = ( duration !== undefined ) ? duration : - 1;
+
+		this.uuid = _Math.generateUUID();
+
+		// this means it should figure out its duration by scanning the tracks
+		if ( this.duration < 0 ) {
+
+			this.resetDuration();
+
+		}
+
+	}
+
+	function getTrackTypeForValueTypeName( typeName ) {
+
+		switch ( typeName.toLowerCase() ) {
+
+			case 'scalar':
+			case 'double':
+			case 'float':
+			case 'number':
+			case 'integer':
+
+				return NumberKeyframeTrack;
+
+			case 'vector':
+			case 'vector2':
+			case 'vector3':
+			case 'vector4':
+
+				return VectorKeyframeTrack;
+
+			case 'color':
+
+				return ColorKeyframeTrack;
+
+			case 'quaternion':
+
+				return QuaternionKeyframeTrack;
+
+			case 'bool':
+			case 'boolean':
+
+				return BooleanKeyframeTrack;
+
+			case 'string':
+
+				return StringKeyframeTrack;
+
+		}
+
+		throw new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName );
+
+	}
+
+	function parseKeyframeTrack( json ) {
+
+		if ( json.type === undefined ) {
+
+			throw new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' );
+
+		}
+
+		var trackType = getTrackTypeForValueTypeName( json.type );
+
+		if ( json.times === undefined ) {
+
+			var times = [], values = [];
+
+			AnimationUtils.flattenJSON( json.keys, times, values, 'value' );
+
+			json.times = times;
+			json.values = values;
+
+		}
+
+		// derived classes can define a static parse method
+		if ( trackType.parse !== undefined ) {
+
+			return trackType.parse( json );
+
+		} else {
+
+			// by default, we assume a constructor compatible with the base
+			return new trackType( json.name, json.times, json.values, json.interpolation );
+
+		}
+
+	}
+
+	Object.assign( AnimationClip, {
+
+		parse: function ( json ) {
+
+			var tracks = [],
+				jsonTracks = json.tracks,
+				frameTime = 1.0 / ( json.fps || 1.0 );
+
+			for ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {
+
+				tracks.push( parseKeyframeTrack( jsonTracks[ i ] ).scale( frameTime ) );
+
+			}
+
+			return new AnimationClip( json.name, json.duration, tracks );
+
+		},
+
+		toJSON: function ( clip ) {
+
+			var tracks = [],
+				clipTracks = clip.tracks;
+
+			var json = {
+
+				'name': clip.name,
+				'duration': clip.duration,
+				'tracks': tracks,
+				'uuid': clip.uuid
+
+			};
+
+			for ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {
+
+				tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );
+
+			}
+
+			return json;
+
+		},
+
+		CreateFromMorphTargetSequence: function ( name, morphTargetSequence, fps, noLoop ) {
+
+			var numMorphTargets = morphTargetSequence.length;
+			var tracks = [];
+
+			for ( var i = 0; i < numMorphTargets; i ++ ) {
+
+				var times = [];
+				var values = [];
+
+				times.push(
+					( i + numMorphTargets - 1 ) % numMorphTargets,
+					i,
+					( i + 1 ) % numMorphTargets );
+
+				values.push( 0, 1, 0 );
+
+				var order = AnimationUtils.getKeyframeOrder( times );
+				times = AnimationUtils.sortedArray( times, 1, order );
+				values = AnimationUtils.sortedArray( values, 1, order );
+
+				// if there is a key at the first frame, duplicate it as the
+				// last frame as well for perfect loop.
+				if ( ! noLoop && times[ 0 ] === 0 ) {
+
+					times.push( numMorphTargets );
+					values.push( values[ 0 ] );
+
+				}
+
+				tracks.push(
+					new NumberKeyframeTrack(
+						'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',
+						times, values
+					).scale( 1.0 / fps ) );
+
+			}
+
+			return new AnimationClip( name, - 1, tracks );
+
+		},
+
+		findByName: function ( objectOrClipArray, name ) {
+
+			var clipArray = objectOrClipArray;
+
+			if ( ! Array.isArray( objectOrClipArray ) ) {
+
+				var o = objectOrClipArray;
+				clipArray = o.geometry && o.geometry.animations || o.animations;
+
+			}
+
+			for ( var i = 0; i < clipArray.length; i ++ ) {
+
+				if ( clipArray[ i ].name === name ) {
+
+					return clipArray[ i ];
+
+				}
+
+			}
+
+			return null;
+
+		},
+
+		CreateClipsFromMorphTargetSequences: function ( morphTargets, fps, noLoop ) {
+
+			var animationToMorphTargets = {};
+
+			// tested with https://regex101.com/ on trick sequences
+			// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
+			var pattern = /^([\w-]*?)([\d]+)$/;
+
+			// sort morph target names into animation groups based
+			// patterns like Walk_001, Walk_002, Run_001, Run_002
+			for ( var i = 0, il = morphTargets.length; i < il; i ++ ) {
+
+				var morphTarget = morphTargets[ i ];
+				var parts = morphTarget.name.match( pattern );
+
+				if ( parts && parts.length > 1 ) {
+
+					var name = parts[ 1 ];
+
+					var animationMorphTargets = animationToMorphTargets[ name ];
+					if ( ! animationMorphTargets ) {
+
+						animationToMorphTargets[ name ] = animationMorphTargets = [];
+
+					}
+
+					animationMorphTargets.push( morphTarget );
+
+				}
+
+			}
+
+			var clips = [];
+
+			for ( var name in animationToMorphTargets ) {
+
+				clips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );
+
+			}
+
+			return clips;
+
+		},
+
+		// parse the animation.hierarchy format
+		parseAnimation: function ( animation, bones ) {
+
+			if ( ! animation ) {
+
+				console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );
+				return null;
+
+			}
+
+			var addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {
+
+				// only return track if there are actually keys.
+				if ( animationKeys.length !== 0 ) {
+
+					var times = [];
+					var values = [];
+
+					AnimationUtils.flattenJSON( animationKeys, times, values, propertyName );
+
+					// empty keys are filtered out, so check again
+					if ( times.length !== 0 ) {
+
+						destTracks.push( new trackType( trackName, times, values ) );
+
+					}
+
+				}
+
+			};
+
+			var tracks = [];
+
+			var clipName = animation.name || 'default';
+			// automatic length determination in AnimationClip.
+			var duration = animation.length || - 1;
+			var fps = animation.fps || 30;
+
+			var hierarchyTracks = animation.hierarchy || [];
+
+			for ( var h = 0; h < hierarchyTracks.length; h ++ ) {
+
+				var animationKeys = hierarchyTracks[ h ].keys;
+
+				// skip empty tracks
+				if ( ! animationKeys || animationKeys.length === 0 ) continue;
+
+				// process morph targets
+				if ( animationKeys[ 0 ].morphTargets ) {
+
+					// figure out all morph targets used in this track
+					var morphTargetNames = {};
+
+					for ( var k = 0; k < animationKeys.length; k ++ ) {
+
+						if ( animationKeys[ k ].morphTargets ) {
+
+							for ( var m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {
+
+								morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;
+
+							}
+
+						}
+
+					}
+
+					// create a track for each morph target with all zero
+					// morphTargetInfluences except for the keys in which
+					// the morphTarget is named.
+					for ( var morphTargetName in morphTargetNames ) {
+
+						var times = [];
+						var values = [];
+
+						for ( var m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {
+
+							var animationKey = animationKeys[ k ];
+
+							times.push( animationKey.time );
+							values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );
+
+						}
+
+						tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );
+
+					}
+
+					duration = morphTargetNames.length * ( fps || 1.0 );
+
+				} else {
+
+					// ...assume skeletal animation
+
+					var boneName = '.bones[' + bones[ h ].name + ']';
+
+					addNonemptyTrack(
+						VectorKeyframeTrack, boneName + '.position',
+						animationKeys, 'pos', tracks );
+
+					addNonemptyTrack(
+						QuaternionKeyframeTrack, boneName + '.quaternion',
+						animationKeys, 'rot', tracks );
+
+					addNonemptyTrack(
+						VectorKeyframeTrack, boneName + '.scale',
+						animationKeys, 'scl', tracks );
+
+				}
+
+			}
+
+			if ( tracks.length === 0 ) {
+
+				return null;
+
+			}
+
+			var clip = new AnimationClip( clipName, duration, tracks );
+
+			return clip;
+
+		}
+
+	} );
+
+	Object.assign( AnimationClip.prototype, {
+
+		resetDuration: function () {
+
+			var tracks = this.tracks, duration = 0;
+
+			for ( var i = 0, n = tracks.length; i !== n; ++ i ) {
+
+				var track = this.tracks[ i ];
+
+				duration = Math.max( duration, track.times[ track.times.length - 1 ] );
+
+			}
+
+			this.duration = duration;
+
+			return this;
+
+		},
+
+		trim: function () {
+
+			for ( var i = 0; i < this.tracks.length; i ++ ) {
+
+				this.tracks[ i ].trim( 0, this.duration );
+
+			}
+
+			return this;
+
+		},
+
+		validate: function () {
+
+			var valid = true;
+
+			for ( var i = 0; i < this.tracks.length; i ++ ) {
+
+				valid = valid && this.tracks[ i ].validate();
+
+			}
+
+			return valid;
+
+		},
+
+		optimize: function () {
+
+			for ( var i = 0; i < this.tracks.length; i ++ ) {
+
+				this.tracks[ i ].optimize();
+
+			}
+
+			return this;
+
+		},
+
+
+		clone: function () {
+
+			var tracks = [];
+
+			for ( var i = 0; i < this.tracks.length; i ++ ) {
+
+				tracks.push( this.tracks[ i ].clone() );
+
+			}
+
+			return new AnimationClip( this.name, this.duration, tracks );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	var Cache = {
+
+		enabled: false,
+
+		files: {},
+
+		add: function ( key, file ) {
+
+			if ( this.enabled === false ) return;
+
+			// console.log( 'THREE.Cache', 'Adding key:', key );
+
+			this.files[ key ] = file;
+
+		},
+
+		get: function ( key ) {
+
+			if ( this.enabled === false ) return;
+
+			// console.log( 'THREE.Cache', 'Checking key:', key );
+
+			return this.files[ key ];
+
+		},
+
+		remove: function ( key ) {
+
+			delete this.files[ key ];
+
+		},
+
+		clear: function () {
+
+			this.files = {};
+
+		}
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function LoadingManager( onLoad, onProgress, onError ) {
+
+		var scope = this;
+
+		var isLoading = false;
+		var itemsLoaded = 0;
+		var itemsTotal = 0;
+		var urlModifier = undefined;
+
+		// Refer to #5689 for the reason why we don't set .onStart
+		// in the constructor
+
+		this.onStart = undefined;
+		this.onLoad = onLoad;
+		this.onProgress = onProgress;
+		this.onError = onError;
+
+		this.itemStart = function ( url ) {
+
+			itemsTotal ++;
+
+			if ( isLoading === false ) {
+
+				if ( scope.onStart !== undefined ) {
+
+					scope.onStart( url, itemsLoaded, itemsTotal );
+
+				}
+
+			}
+
+			isLoading = true;
+
+		};
+
+		this.itemEnd = function ( url ) {
+
+			itemsLoaded ++;
+
+			if ( scope.onProgress !== undefined ) {
+
+				scope.onProgress( url, itemsLoaded, itemsTotal );
+
+			}
+
+			if ( itemsLoaded === itemsTotal ) {
+
+				isLoading = false;
+
+				if ( scope.onLoad !== undefined ) {
+
+					scope.onLoad();
+
+				}
+
+			}
+
+		};
+
+		this.itemError = function ( url ) {
+
+			if ( scope.onError !== undefined ) {
+
+				scope.onError( url );
+
+			}
+
+		};
+
+		this.resolveURL = function ( url ) {
+
+			if ( urlModifier ) {
+
+				return urlModifier( url );
+
+			}
+
+			return url;
+
+		};
+
+		this.setURLModifier = function ( transform ) {
+
+			urlModifier = transform;
+			return this;
+
+		};
+
+	}
+
+	var DefaultLoadingManager = new LoadingManager();
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	var loading = {};
+
+	function FileLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	}
+
+	Object.assign( FileLoader.prototype, {
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			if ( url === undefined ) url = '';
+
+			if ( this.path !== undefined ) url = this.path + url;
+
+			url = this.manager.resolveURL( url );
+
+			var scope = this;
+
+			var cached = Cache.get( url );
+
+			if ( cached !== undefined ) {
+
+				scope.manager.itemStart( url );
+
+				setTimeout( function () {
+
+					if ( onLoad ) onLoad( cached );
+
+					scope.manager.itemEnd( url );
+
+				}, 0 );
+
+				return cached;
+
+			}
+
+			// Check if request is duplicate
+
+			if ( loading[ url ] !== undefined ) {
+
+				loading[ url ].push( {
+
+					onLoad: onLoad,
+					onProgress: onProgress,
+					onError: onError
+
+				} );
+
+				return;
+
+			}
+
+			// Check for data: URI
+			var dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;
+			var dataUriRegexResult = url.match( dataUriRegex );
+
+			// Safari can not handle Data URIs through XMLHttpRequest so process manually
+			if ( dataUriRegexResult ) {
+
+				var mimeType = dataUriRegexResult[ 1 ];
+				var isBase64 = !! dataUriRegexResult[ 2 ];
+				var data = dataUriRegexResult[ 3 ];
+
+				data = decodeURIComponent( data );
+
+				if ( isBase64 ) data = atob( data );
+
+				try {
+
+					var response;
+					var responseType = ( this.responseType || '' ).toLowerCase();
+
+					switch ( responseType ) {
+
+						case 'arraybuffer':
+						case 'blob':
+
+							var view = new Uint8Array( data.length );
+
+							for ( var i = 0; i < data.length; i ++ ) {
+
+								view[ i ] = data.charCodeAt( i );
+
+							}
+
+							if ( responseType === 'blob' ) {
+
+								response = new Blob( [ view.buffer ], { type: mimeType } );
+
+							} else {
+
+								response = view.buffer;
+
+							}
+
+							break;
+
+						case 'document':
+
+							var parser = new DOMParser();
+							response = parser.parseFromString( data, mimeType );
+
+							break;
+
+						case 'json':
+
+							response = JSON.parse( data );
+
+							break;
+
+						default: // 'text' or other
+
+							response = data;
+
+							break;
+
+					}
+
+					// Wait for next browser tick like standard XMLHttpRequest event dispatching does
+					setTimeout( function () {
+
+						if ( onLoad ) onLoad( response );
+
+						scope.manager.itemEnd( url );
+
+					}, 0 );
+
+				} catch ( error ) {
+
+					// Wait for next browser tick like standard XMLHttpRequest event dispatching does
+					setTimeout( function () {
+
+						if ( onError ) onError( error );
+
+						scope.manager.itemError( url );
+						scope.manager.itemEnd( url );
+
+					}, 0 );
+
+				}
+
+			} else {
+
+				// Initialise array for duplicate requests
+
+				loading[ url ] = [];
+
+				loading[ url ].push( {
+
+					onLoad: onLoad,
+					onProgress: onProgress,
+					onError: onError
+
+				} );
+
+				var request = new XMLHttpRequest();
+
+				request.open( 'GET', url, true );
+
+				request.addEventListener( 'load', function ( event ) {
+
+					var response = this.response;
+
+					Cache.add( url, response );
+
+					var callbacks = loading[ url ];
+
+					delete loading[ url ];
+
+					if ( this.status === 200 || this.status === 0 ) {
+
+						// Some browsers return HTTP Status 0 when using non-http protocol
+						// e.g. 'file://' or 'data://'. Handle as success.
+
+						if ( this.status === 0 ) console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );
+
+						for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+							var callback = callbacks[ i ];
+							if ( callback.onLoad ) callback.onLoad( response );
+
+						}
+
+						scope.manager.itemEnd( url );
+
+					} else {
+
+						for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+							var callback = callbacks[ i ];
+							if ( callback.onError ) callback.onError( event );
+
+						}
+
+						scope.manager.itemError( url );
+						scope.manager.itemEnd( url );
+
+					}
+
+				}, false );
+
+				request.addEventListener( 'progress', function ( event ) {
+
+					var callbacks = loading[ url ];
+
+					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+						var callback = callbacks[ i ];
+						if ( callback.onProgress ) callback.onProgress( event );
+
+					}
+
+				}, false );
+
+				request.addEventListener( 'error', function ( event ) {
+
+					var callbacks = loading[ url ];
+
+					delete loading[ url ];
+
+					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+						var callback = callbacks[ i ];
+						if ( callback.onError ) callback.onError( event );
+
+					}
+
+					scope.manager.itemError( url );
+					scope.manager.itemEnd( url );
+
+				}, false );
+
+				request.addEventListener( 'abort', function ( event ) {
+
+					var callbacks = loading[ url ];
+
+					delete loading[ url ];
+
+					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+						var callback = callbacks[ i ];
+						if ( callback.onError ) callback.onError( event );
+
+					}
+
+					scope.manager.itemError( url );
+					scope.manager.itemEnd( url );
+
+				}, false );
+
+				if ( this.responseType !== undefined ) request.responseType = this.responseType;
+				if ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;
+
+				if ( request.overrideMimeType ) request.overrideMimeType( this.mimeType !== undefined ? this.mimeType : 'text/plain' );
+
+				for ( var header in this.requestHeader ) {
+
+					request.setRequestHeader( header, this.requestHeader[ header ] );
+
+				}
+
+				request.send( null );
+
+			}
+
+			scope.manager.itemStart( url );
+
+			return request;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		},
+
+		setResponseType: function ( value ) {
+
+			this.responseType = value;
+			return this;
+
+		},
+
+		setWithCredentials: function ( value ) {
+
+			this.withCredentials = value;
+			return this;
+
+		},
+
+		setMimeType: function ( value ) {
+
+			this.mimeType = value;
+			return this;
+
+		},
+
+		setRequestHeader: function ( value ) {
+
+			this.requestHeader = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author bhouston / http://clara.io/
+	 */
+
+	function AnimationLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	}
+
+	Object.assign( AnimationLoader.prototype, {
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var scope = this;
+
+			var loader = new FileLoader( scope.manager );
+			loader.setPath( scope.path );
+			loader.load( url, function ( text ) {
+
+				onLoad( scope.parse( JSON.parse( text ) ) );
+
+			}, onProgress, onError );
+
+		},
+
+		parse: function ( json ) {
+
+			var animations = [];
+
+			for ( var i = 0; i < json.length; i ++ ) {
+
+				var clip = AnimationClip.parse( json[ i ] );
+
+				animations.push( clip );
+
+			}
+
+			return animations;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 *
+	 * Abstract Base class to block based textures loader (dds, pvr, ...)
+	 */
+
+	function CompressedTextureLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+		// override in sub classes
+		this._parser = null;
+
+	}
+
+	Object.assign( CompressedTextureLoader.prototype, {
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var scope = this;
+
+			var images = [];
+
+			var texture = new CompressedTexture();
+			texture.image = images;
+
+			var loader = new FileLoader( this.manager );
+			loader.setPath( this.path );
+			loader.setResponseType( 'arraybuffer' );
+
+			function loadTexture( i ) {
+
+				loader.load( url[ i ], function ( buffer ) {
+
+					var texDatas = scope._parser( buffer, true );
+
+					images[ i ] = {
+						width: texDatas.width,
+						height: texDatas.height,
+						format: texDatas.format,
+						mipmaps: texDatas.mipmaps
+					};
+
+					loaded += 1;
+
+					if ( loaded === 6 ) {
+
+						if ( texDatas.mipmapCount === 1 )
+							texture.minFilter = LinearFilter;
+
+						texture.format = texDatas.format;
+						texture.needsUpdate = true;
+
+						if ( onLoad ) onLoad( texture );
+
+					}
+
+				}, onProgress, onError );
+
+			}
+
+			if ( Array.isArray( url ) ) {
+
+				var loaded = 0;
+
+				for ( var i = 0, il = url.length; i < il; ++ i ) {
+
+					loadTexture( i );
+
+				}
+
+			} else {
+
+				// compressed cubemap texture stored in a single DDS file
+
+				loader.load( url, function ( buffer ) {
+
+					var texDatas = scope._parser( buffer, true );
+
+					if ( texDatas.isCubemap ) {
+
+						var faces = texDatas.mipmaps.length / texDatas.mipmapCount;
+
+						for ( var f = 0; f < faces; f ++ ) {
+
+							images[ f ] = { mipmaps: [] };
+
+							for ( var i = 0; i < texDatas.mipmapCount; i ++ ) {
+
+								images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );
+								images[ f ].format = texDatas.format;
+								images[ f ].width = texDatas.width;
+								images[ f ].height = texDatas.height;
+
+							}
+
+						}
+
+					} else {
+
+						texture.image.width = texDatas.width;
+						texture.image.height = texDatas.height;
+						texture.mipmaps = texDatas.mipmaps;
+
+					}
+
+					if ( texDatas.mipmapCount === 1 ) {
+
+						texture.minFilter = LinearFilter;
+
+					}
+
+					texture.format = texDatas.format;
+					texture.needsUpdate = true;
+
+					if ( onLoad ) onLoad( texture );
+
+				}, onProgress, onError );
+
+			}
+
+			return texture;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author Nikos M. / https://github.com/foo123/
+	 *
+	 * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
+	 */
+
+	function DataTextureLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+		// override in sub classes
+		this._parser = null;
+
+	}
+
+	Object.assign( DataTextureLoader.prototype, {
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var scope = this;
+
+			var texture = new DataTexture();
+
+			var loader = new FileLoader( this.manager );
+			loader.setResponseType( 'arraybuffer' );
+			loader.setPath( this.path );
+			loader.load( url, function ( buffer ) {
+
+				var texData = scope._parser( buffer );
+
+				if ( ! texData ) return;
+
+				if ( texData.image !== undefined ) {
+
+					texture.image = texData.image;
+
+				} else if ( texData.data !== undefined ) {
+
+					texture.image.width = texData.width;
+					texture.image.height = texData.height;
+					texture.image.data = texData.data;
+
+				}
+
+				texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping;
+				texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping;
+
+				texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter;
+				texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearMipMapLinearFilter;
+
+				texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1;
+
+				if ( texData.format !== undefined ) {
+
+					texture.format = texData.format;
+
+				}
+				if ( texData.type !== undefined ) {
+
+					texture.type = texData.type;
+
+				}
+
+				if ( texData.mipmaps !== undefined ) {
+
+					texture.mipmaps = texData.mipmaps;
+
+				}
+
+				if ( texData.mipmapCount === 1 ) {
+
+					texture.minFilter = LinearFilter;
+
+				}
+
+				texture.needsUpdate = true;
+
+				if ( onLoad ) onLoad( texture, texData );
+
+			}, onProgress, onError );
+
+
+			return texture;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+
+	function ImageLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	}
+
+	Object.assign( ImageLoader.prototype, {
+
+		crossOrigin: 'anonymous',
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			if ( url === undefined ) url = '';
+
+			if ( this.path !== undefined ) url = this.path + url;
+
+			url = this.manager.resolveURL( url );
+
+			var scope = this;
+
+			var cached = Cache.get( url );
+
+			if ( cached !== undefined ) {
+
+				scope.manager.itemStart( url );
+
+				setTimeout( function () {
+
+					if ( onLoad ) onLoad( cached );
+
+					scope.manager.itemEnd( url );
+
+				}, 0 );
+
+				return cached;
+
+			}
+
+			var image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' );
+
+			function onImageLoad() {
+
+				image.removeEventListener( 'load', onImageLoad, false );
+				image.removeEventListener( 'error', onImageError, false );
+
+				Cache.add( url, this );
+
+				if ( onLoad ) onLoad( this );
+
+				scope.manager.itemEnd( url );
+
+			}
+
+			function onImageError( event ) {
+
+				image.removeEventListener( 'load', onImageLoad, false );
+				image.removeEventListener( 'error', onImageError, false );
+
+				if ( onError ) onError( event );
+
+				scope.manager.itemError( url );
+				scope.manager.itemEnd( url );
+
+			}
+
+			image.addEventListener( 'load', onImageLoad, false );
+			image.addEventListener( 'error', onImageError, false );
+
+			if ( url.substr( 0, 5 ) !== 'data:' ) {
+
+				if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;
+
+			}
+
+			scope.manager.itemStart( url );
+
+			image.src = url;
+
+			return image;
+
+		},
+
+		setCrossOrigin: function ( value ) {
+
+			this.crossOrigin = value;
+			return this;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+
+	function CubeTextureLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	}
+
+	Object.assign( CubeTextureLoader.prototype, {
+
+		crossOrigin: 'anonymous',
+
+		load: function ( urls, onLoad, onProgress, onError ) {
+
+			var texture = new CubeTexture();
+
+			var loader = new ImageLoader( this.manager );
+			loader.setCrossOrigin( this.crossOrigin );
+			loader.setPath( this.path );
+
+			var loaded = 0;
+
+			function loadTexture( i ) {
+
+				loader.load( urls[ i ], function ( image ) {
+
+					texture.images[ i ] = image;
+
+					loaded ++;
+
+					if ( loaded === 6 ) {
+
+						texture.needsUpdate = true;
+
+						if ( onLoad ) onLoad( texture );
+
+					}
+
+				}, undefined, onError );
+
+			}
+
+			for ( var i = 0; i < urls.length; ++ i ) {
+
+				loadTexture( i );
+
+			}
+
+			return texture;
+
+		},
+
+		setCrossOrigin: function ( value ) {
+
+			this.crossOrigin = value;
+			return this;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+
+	function TextureLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	}
+
+	Object.assign( TextureLoader.prototype, {
+
+		crossOrigin: 'anonymous',
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var texture = new Texture();
+
+			var loader = new ImageLoader( this.manager );
+			loader.setCrossOrigin( this.crossOrigin );
+			loader.setPath( this.path );
+
+			loader.load( url, function ( image ) {
+
+				texture.image = image;
+
+				// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.
+				var isJPEG = url.search( /\.jpe?g($|\?)/i ) > 0 || url.search( /^data\:image\/jpeg/ ) === 0;
+
+				texture.format = isJPEG ? RGBFormat : RGBAFormat;
+				texture.needsUpdate = true;
+
+				if ( onLoad !== undefined ) {
+
+					onLoad( texture );
+
+				}
+
+			}, onProgress, onError );
+
+			return texture;
+
+		},
+
+		setCrossOrigin: function ( value ) {
+
+			this.crossOrigin = value;
+			return this;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 * Extensible curve object
+	 *
+	 * Some common of curve methods:
+	 * .getPoint( t, optionalTarget ), .getTangent( t )
+	 * .getPointAt( u, optionalTarget ), .getTangentAt( u )
+	 * .getPoints(), .getSpacedPoints()
+	 * .getLength()
+	 * .updateArcLengths()
+	 *
+	 * This following curves inherit from THREE.Curve:
+	 *
+	 * -- 2D curves --
+	 * THREE.ArcCurve
+	 * THREE.CubicBezierCurve
+	 * THREE.EllipseCurve
+	 * THREE.LineCurve
+	 * THREE.QuadraticBezierCurve
+	 * THREE.SplineCurve
+	 *
+	 * -- 3D curves --
+	 * THREE.CatmullRomCurve3
+	 * THREE.CubicBezierCurve3
+	 * THREE.LineCurve3
+	 * THREE.QuadraticBezierCurve3
+	 *
+	 * A series of curves can be represented as a THREE.CurvePath.
+	 *
+	 **/
+
+	/**************************************************************
+	 *	Abstract Curve base class
+	 **************************************************************/
+
+	function Curve() {
+
+		this.type = 'Curve';
+
+		this.arcLengthDivisions = 200;
+
+	}
+
+	Object.assign( Curve.prototype, {
+
+		// Virtual base class method to overwrite and implement in subclasses
+		//	- t [0 .. 1]
+
+		getPoint: function ( /* t, optionalTarget */ ) {
+
+			console.warn( 'THREE.Curve: .getPoint() not implemented.' );
+			return null;
+
+		},
+
+		// Get point at relative position in curve according to arc length
+		// - u [0 .. 1]
+
+		getPointAt: function ( u, optionalTarget ) {
+
+			var t = this.getUtoTmapping( u );
+			return this.getPoint( t, optionalTarget );
+
+		},
+
+		// Get sequence of points using getPoint( t )
+
+		getPoints: function ( divisions ) {
+
+			if ( divisions === undefined ) divisions = 5;
+
+			var points = [];
+
+			for ( var d = 0; d <= divisions; d ++ ) {
+
+				points.push( this.getPoint( d / divisions ) );
+
+			}
+
+			return points;
+
+		},
+
+		// Get sequence of points using getPointAt( u )
+
+		getSpacedPoints: function ( divisions ) {
+
+			if ( divisions === undefined ) divisions = 5;
+
+			var points = [];
+
+			for ( var d = 0; d <= divisions; d ++ ) {
+
+				points.push( this.getPointAt( d / divisions ) );
+
+			}
+
+			return points;
+
+		},
+
+		// Get total curve arc length
+
+		getLength: function () {
+
+			var lengths = this.getLengths();
+			return lengths[ lengths.length - 1 ];
+
+		},
+
+		// Get list of cumulative segment lengths
+
+		getLengths: function ( divisions ) {
+
+			if ( divisions === undefined ) divisions = this.arcLengthDivisions;
+
+			if ( this.cacheArcLengths &&
+				( this.cacheArcLengths.length === divisions + 1 ) &&
+				! this.needsUpdate ) {
+
+				return this.cacheArcLengths;
+
+			}
+
+			this.needsUpdate = false;
+
+			var cache = [];
+			var current, last = this.getPoint( 0 );
+			var p, sum = 0;
+
+			cache.push( 0 );
+
+			for ( p = 1; p <= divisions; p ++ ) {
+
+				current = this.getPoint( p / divisions );
+				sum += current.distanceTo( last );
+				cache.push( sum );
+				last = current;
+
+			}
+
+			this.cacheArcLengths = cache;
+
+			return cache; // { sums: cache, sum: sum }; Sum is in the last element.
+
+		},
+
+		updateArcLengths: function () {
+
+			this.needsUpdate = true;
+			this.getLengths();
+
+		},
+
+		// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant
+
+		getUtoTmapping: function ( u, distance ) {
+
+			var arcLengths = this.getLengths();
+
+			var i = 0, il = arcLengths.length;
+
+			var targetArcLength; // The targeted u distance value to get
+
+			if ( distance ) {
+
+				targetArcLength = distance;
+
+			} else {
+
+				targetArcLength = u * arcLengths[ il - 1 ];
+
+			}
+
+			// binary search for the index with largest value smaller than target u distance
+
+			var low = 0, high = il - 1, comparison;
+
+			while ( low <= high ) {
+
+				i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats
+
+				comparison = arcLengths[ i ] - targetArcLength;
+
+				if ( comparison < 0 ) {
+
+					low = i + 1;
+
+				} else if ( comparison > 0 ) {
+
+					high = i - 1;
+
+				} else {
+
+					high = i;
+					break;
+
+					// DONE
+
+				}
+
+			}
+
+			i = high;
+
+			if ( arcLengths[ i ] === targetArcLength ) {
+
+				return i / ( il - 1 );
+
+			}
+
+			// we could get finer grain at lengths, or use simple interpolation between two points
+
+			var lengthBefore = arcLengths[ i ];
+			var lengthAfter = arcLengths[ i + 1 ];
+
+			var segmentLength = lengthAfter - lengthBefore;
+
+			// determine where we are between the 'before' and 'after' points
+
+			var segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;
+
+			// add that fractional amount to t
+
+			var t = ( i + segmentFraction ) / ( il - 1 );
+
+			return t;
+
+		},
+
+		// Returns a unit vector tangent at t
+		// In case any sub curve does not implement its tangent derivation,
+		// 2 points a small delta apart will be used to find its gradient
+		// which seems to give a reasonable approximation
+
+		getTangent: function ( t ) {
+
+			var delta = 0.0001;
+			var t1 = t - delta;
+			var t2 = t + delta;
+
+			// Capping in case of danger
+
+			if ( t1 < 0 ) t1 = 0;
+			if ( t2 > 1 ) t2 = 1;
+
+			var pt1 = this.getPoint( t1 );
+			var pt2 = this.getPoint( t2 );
+
+			var vec = pt2.clone().sub( pt1 );
+			return vec.normalize();
+
+		},
+
+		getTangentAt: function ( u ) {
+
+			var t = this.getUtoTmapping( u );
+			return this.getTangent( t );
+
+		},
+
+		computeFrenetFrames: function ( segments, closed ) {
+
+			// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf
+
+			var normal = new Vector3();
+
+			var tangents = [];
+			var normals = [];
+			var binormals = [];
+
+			var vec = new Vector3();
+			var mat = new Matrix4();
+
+			var i, u, theta;
+
+			// compute the tangent vectors for each segment on the curve
+
+			for ( i = 0; i <= segments; i ++ ) {
+
+				u = i / segments;
+
+				tangents[ i ] = this.getTangentAt( u );
+				tangents[ i ].normalize();
+
+			}
+
+			// select an initial normal vector perpendicular to the first tangent vector,
+			// and in the direction of the minimum tangent xyz component
+
+			normals[ 0 ] = new Vector3();
+			binormals[ 0 ] = new Vector3();
+			var min = Number.MAX_VALUE;
+			var tx = Math.abs( tangents[ 0 ].x );
+			var ty = Math.abs( tangents[ 0 ].y );
+			var tz = Math.abs( tangents[ 0 ].z );
+
+			if ( tx <= min ) {
+
+				min = tx;
+				normal.set( 1, 0, 0 );
+
+			}
+
+			if ( ty <= min ) {
+
+				min = ty;
+				normal.set( 0, 1, 0 );
+
+			}
+
+			if ( tz <= min ) {
+
+				normal.set( 0, 0, 1 );
+
+			}
+
+			vec.crossVectors( tangents[ 0 ], normal ).normalize();
+
+			normals[ 0 ].crossVectors( tangents[ 0 ], vec );
+			binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );
+
+
+			// compute the slowly-varying normal and binormal vectors for each segment on the curve
+
+			for ( i = 1; i <= segments; i ++ ) {
+
+				normals[ i ] = normals[ i - 1 ].clone();
+
+				binormals[ i ] = binormals[ i - 1 ].clone();
+
+				vec.crossVectors( tangents[ i - 1 ], tangents[ i ] );
+
+				if ( vec.length() > Number.EPSILON ) {
+
+					vec.normalize();
+
+					theta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors
+
+					normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );
+
+				}
+
+				binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );
+
+			}
+
+			// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same
+
+			if ( closed === true ) {
+
+				theta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );
+				theta /= segments;
+
+				if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {
+
+					theta = - theta;
+
+				}
+
+				for ( i = 1; i <= segments; i ++ ) {
+
+					// twist a little...
+					normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );
+					binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );
+
+				}
+
+			}
+
+			return {
+				tangents: tangents,
+				normals: normals,
+				binormals: binormals
+			};
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( source ) {
+
+			this.arcLengthDivisions = source.arcLengthDivisions;
+
+			return this;
+
+		},
+
+		toJSON: function () {
+
+			var data = {
+				metadata: {
+					version: 4.5,
+					type: 'Curve',
+					generator: 'Curve.toJSON'
+				}
+			};
+
+			data.arcLengthDivisions = this.arcLengthDivisions;
+			data.type = this.type;
+
+			return data;
+
+		},
+
+		fromJSON: function ( json ) {
+
+			this.arcLengthDivisions = json.arcLengthDivisions;
+
+			return this;
+
+		}
+
+	} );
+
+	function EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
+
+		Curve.call( this );
+
+		this.type = 'EllipseCurve';
+
+		this.aX = aX || 0;
+		this.aY = aY || 0;
+
+		this.xRadius = xRadius || 1;
+		this.yRadius = yRadius || 1;
+
+		this.aStartAngle = aStartAngle || 0;
+		this.aEndAngle = aEndAngle || 2 * Math.PI;
+
+		this.aClockwise = aClockwise || false;
+
+		this.aRotation = aRotation || 0;
+
+	}
+
+	EllipseCurve.prototype = Object.create( Curve.prototype );
+	EllipseCurve.prototype.constructor = EllipseCurve;
+
+	EllipseCurve.prototype.isEllipseCurve = true;
+
+	EllipseCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+		var point = optionalTarget || new Vector2();
+
+		var twoPi = Math.PI * 2;
+		var deltaAngle = this.aEndAngle - this.aStartAngle;
+		var samePoints = Math.abs( deltaAngle ) < Number.EPSILON;
+
+		// ensures that deltaAngle is 0 .. 2 PI
+		while ( deltaAngle < 0 ) deltaAngle += twoPi;
+		while ( deltaAngle > twoPi ) deltaAngle -= twoPi;
+
+		if ( deltaAngle < Number.EPSILON ) {
+
+			if ( samePoints ) {
+
+				deltaAngle = 0;
+
+			} else {
+
+				deltaAngle = twoPi;
+
+			}
+
+		}
+
+		if ( this.aClockwise === true && ! samePoints ) {
+
+			if ( deltaAngle === twoPi ) {
+
+				deltaAngle = - twoPi;
+
+			} else {
+
+				deltaAngle = deltaAngle - twoPi;
+
+			}
+
+		}
+
+		var angle = this.aStartAngle + t * deltaAngle;
+		var x = this.aX + this.xRadius * Math.cos( angle );
+		var y = this.aY + this.yRadius * Math.sin( angle );
+
+		if ( this.aRotation !== 0 ) {
+
+			var cos = Math.cos( this.aRotation );
+			var sin = Math.sin( this.aRotation );
+
+			var tx = x - this.aX;
+			var ty = y - this.aY;
+
+			// Rotate the point about the center of the ellipse.
+			x = tx * cos - ty * sin + this.aX;
+			y = tx * sin + ty * cos + this.aY;
+
+		}
+
+		return point.set( x, y );
+
+	};
+
+	EllipseCurve.prototype.copy = function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.aX = source.aX;
+		this.aY = source.aY;
+
+		this.xRadius = source.xRadius;
+		this.yRadius = source.yRadius;
+
+		this.aStartAngle = source.aStartAngle;
+		this.aEndAngle = source.aEndAngle;
+
+		this.aClockwise = source.aClockwise;
+
+		this.aRotation = source.aRotation;
+
+		return this;
+
+	};
+
+
+	EllipseCurve.prototype.toJSON = function () {
+
+		var data = Curve.prototype.toJSON.call( this );
+
+		data.aX = this.aX;
+		data.aY = this.aY;
+
+		data.xRadius = this.xRadius;
+		data.yRadius = this.yRadius;
+
+		data.aStartAngle = this.aStartAngle;
+		data.aEndAngle = this.aEndAngle;
+
+		data.aClockwise = this.aClockwise;
+
+		data.aRotation = this.aRotation;
+
+		return data;
+
+	};
+
+	EllipseCurve.prototype.fromJSON = function ( json ) {
+
+		Curve.prototype.fromJSON.call( this, json );
+
+		this.aX = json.aX;
+		this.aY = json.aY;
+
+		this.xRadius = json.xRadius;
+		this.yRadius = json.yRadius;
+
+		this.aStartAngle = json.aStartAngle;
+		this.aEndAngle = json.aEndAngle;
+
+		this.aClockwise = json.aClockwise;
+
+		this.aRotation = json.aRotation;
+
+		return this;
+
+	};
+
+	function ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
+
+		EllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );
+
+		this.type = 'ArcCurve';
+
+	}
+
+	ArcCurve.prototype = Object.create( EllipseCurve.prototype );
+	ArcCurve.prototype.constructor = ArcCurve;
+
+	ArcCurve.prototype.isArcCurve = true;
+
+	/**
+	 * @author zz85 https://github.com/zz85
+	 *
+	 * Centripetal CatmullRom Curve - which is useful for avoiding
+	 * cusps and self-intersections in non-uniform catmull rom curves.
+	 * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
+	 *
+	 * curve.type accepts centripetal(default), chordal and catmullrom
+	 * curve.tension is used for catmullrom which defaults to 0.5
+	 */
+
+
+	/*
+	Based on an optimized c++ solution in
+	 - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
+	 - http://ideone.com/NoEbVM
+
+	This CubicPoly class could be used for reusing some variables and calculations,
+	but for three.js curve use, it could be possible inlined and flatten into a single function call
+	which can be placed in CurveUtils.
+	*/
+
+	function CubicPoly() {
+
+		var c0 = 0, c1 = 0, c2 = 0, c3 = 0;
+
+		/*
+		 * Compute coefficients for a cubic polynomial
+		 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
+		 * such that
+		 *   p(0) = x0, p(1) = x1
+		 *  and
+		 *   p'(0) = t0, p'(1) = t1.
+		 */
+		function init( x0, x1, t0, t1 ) {
+
+			c0 = x0;
+			c1 = t0;
+			c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;
+			c3 = 2 * x0 - 2 * x1 + t0 + t1;
+
+		}
+
+		return {
+
+			initCatmullRom: function ( x0, x1, x2, x3, tension ) {
+
+				init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );
+
+			},
+
+			initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {
+
+				// compute tangents when parameterized in [t1,t2]
+				var t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;
+				var t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;
+
+				// rescale tangents for parametrization in [0,1]
+				t1 *= dt1;
+				t2 *= dt1;
+
+				init( x1, x2, t1, t2 );
+
+			},
+
+			calc: function ( t ) {
+
+				var t2 = t * t;
+				var t3 = t2 * t;
+				return c0 + c1 * t + c2 * t2 + c3 * t3;
+
+			}
+
+		};
+
+	}
+
+	//
+
+	var tmp = new Vector3();
+	var px = new CubicPoly(), py = new CubicPoly(), pz = new CubicPoly();
+
+	function CatmullRomCurve3( points, closed, curveType, tension ) {
+
+		Curve.call( this );
+
+		this.type = 'CatmullRomCurve3';
+
+		this.points = points || [];
+		this.closed = closed || false;
+		this.curveType = curveType || 'centripetal';
+		this.tension = tension || 0.5;
+
+	}
+
+	CatmullRomCurve3.prototype = Object.create( Curve.prototype );
+	CatmullRomCurve3.prototype.constructor = CatmullRomCurve3;
+
+	CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;
+
+	CatmullRomCurve3.prototype.getPoint = function ( t, optionalTarget ) {
+
+		var point = optionalTarget || new Vector3();
+
+		var points = this.points;
+		var l = points.length;
+
+		var p = ( l - ( this.closed ? 0 : 1 ) ) * t;
+		var intPoint = Math.floor( p );
+		var weight = p - intPoint;
+
+		if ( this.closed ) {
+
+			intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / l ) + 1 ) * l;
+
+		} else if ( weight === 0 && intPoint === l - 1 ) {
+
+			intPoint = l - 2;
+			weight = 1;
+
+		}
+
+		var p0, p1, p2, p3; // 4 points
+
+		if ( this.closed || intPoint > 0 ) {
+
+			p0 = points[ ( intPoint - 1 ) % l ];
+
+		} else {
+
+			// extrapolate first point
+			tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );
+			p0 = tmp;
+
+		}
+
+		p1 = points[ intPoint % l ];
+		p2 = points[ ( intPoint + 1 ) % l ];
+
+		if ( this.closed || intPoint + 2 < l ) {
+
+			p3 = points[ ( intPoint + 2 ) % l ];
+
+		} else {
+
+			// extrapolate last point
+			tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );
+			p3 = tmp;
+
+		}
+
+		if ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) {
+
+			// init Centripetal / Chordal Catmull-Rom
+			var pow = this.curveType === 'chordal' ? 0.5 : 0.25;
+			var dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );
+			var dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );
+			var dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );
+
+			// safety check for repeated points
+			if ( dt1 < 1e-4 ) dt1 = 1.0;
+			if ( dt0 < 1e-4 ) dt0 = dt1;
+			if ( dt2 < 1e-4 ) dt2 = dt1;
+
+			px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );
+			py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );
+			pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );
+
+		} else if ( this.curveType === 'catmullrom' ) {
+
+			px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension );
+			py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension );
+			pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension );
+
+		}
+
+		point.set(
+			px.calc( weight ),
+			py.calc( weight ),
+			pz.calc( weight )
+		);
+
+		return point;
+
+	};
+
+	CatmullRomCurve3.prototype.copy = function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.points = [];
+
+		for ( var i = 0, l = source.points.length; i < l; i ++ ) {
+
+			var point = source.points[ i ];
+
+			this.points.push( point.clone() );
+
+		}
+
+		this.closed = source.closed;
+		this.curveType = source.curveType;
+		this.tension = source.tension;
+
+		return this;
+
+	};
+
+	CatmullRomCurve3.prototype.toJSON = function () {
+
+		var data = Curve.prototype.toJSON.call( this );
+
+		data.points = [];
+
+		for ( var i = 0, l = this.points.length; i < l; i ++ ) {
+
+			var point = this.points[ i ];
+			data.points.push( point.toArray() );
+
+		}
+
+		data.closed = this.closed;
+		data.curveType = this.curveType;
+		data.tension = this.tension;
+
+		return data;
+
+	};
+
+	CatmullRomCurve3.prototype.fromJSON = function ( json ) {
+
+		Curve.prototype.fromJSON.call( this, json );
+
+		this.points = [];
+
+		for ( var i = 0, l = json.points.length; i < l; i ++ ) {
+
+			var point = json.points[ i ];
+			this.points.push( new Vector3().fromArray( point ) );
+
+		}
+
+		this.closed = json.closed;
+		this.curveType = json.curveType;
+		this.tension = json.tension;
+
+		return this;
+
+	};
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 *
+	 * Bezier Curves formulas obtained from
+	 * http://en.wikipedia.org/wiki/Bézier_curve
+	 */
+
+	function CatmullRom( t, p0, p1, p2, p3 ) {
+
+		var v0 = ( p2 - p0 ) * 0.5;
+		var v1 = ( p3 - p1 ) * 0.5;
+		var t2 = t * t;
+		var t3 = t * t2;
+		return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;
+
+	}
+
+	//
+
+	function QuadraticBezierP0( t, p ) {
+
+		var k = 1 - t;
+		return k * k * p;
+
+	}
+
+	function QuadraticBezierP1( t, p ) {
+
+		return 2 * ( 1 - t ) * t * p;
+
+	}
+
+	function QuadraticBezierP2( t, p ) {
+
+		return t * t * p;
+
+	}
+
+	function QuadraticBezier( t, p0, p1, p2 ) {
+
+		return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +
+			QuadraticBezierP2( t, p2 );
+
+	}
+
+	//
+
+	function CubicBezierP0( t, p ) {
+
+		var k = 1 - t;
+		return k * k * k * p;
+
+	}
+
+	function CubicBezierP1( t, p ) {
+
+		var k = 1 - t;
+		return 3 * k * k * t * p;
+
+	}
+
+	function CubicBezierP2( t, p ) {
+
+		return 3 * ( 1 - t ) * t * t * p;
+
+	}
+
+	function CubicBezierP3( t, p ) {
+
+		return t * t * t * p;
+
+	}
+
+	function CubicBezier( t, p0, p1, p2, p3 ) {
+
+		return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +
+			CubicBezierP3( t, p3 );
+
+	}
+
+	function CubicBezierCurve( v0, v1, v2, v3 ) {
+
+		Curve.call( this );
+
+		this.type = 'CubicBezierCurve';
+
+		this.v0 = v0 || new Vector2();
+		this.v1 = v1 || new Vector2();
+		this.v2 = v2 || new Vector2();
+		this.v3 = v3 || new Vector2();
+
+	}
+
+	CubicBezierCurve.prototype = Object.create( Curve.prototype );
+	CubicBezierCurve.prototype.constructor = CubicBezierCurve;
+
+	CubicBezierCurve.prototype.isCubicBezierCurve = true;
+
+	CubicBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+		var point = optionalTarget || new Vector2();
+
+		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;
+
+		point.set(
+			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
+			CubicBezier( t, v0.y, v1.y, v2.y, v3.y )
+		);
+
+		return point;
+
+	};
+
+	CubicBezierCurve.prototype.copy = function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.v0.copy( source.v0 );
+		this.v1.copy( source.v1 );
+		this.v2.copy( source.v2 );
+		this.v3.copy( source.v3 );
+
+		return this;
+
+	};
+
+	CubicBezierCurve.prototype.toJSON = function () {
+
+		var data = Curve.prototype.toJSON.call( this );
+
+		data.v0 = this.v0.toArray();
+		data.v1 = this.v1.toArray();
+		data.v2 = this.v2.toArray();
+		data.v3 = this.v3.toArray();
+
+		return data;
+
+	};
+
+	CubicBezierCurve.prototype.fromJSON = function ( json ) {
+
+		Curve.prototype.fromJSON.call( this, json );
+
+		this.v0.fromArray( json.v0 );
+		this.v1.fromArray( json.v1 );
+		this.v2.fromArray( json.v2 );
+		this.v3.fromArray( json.v3 );
+
+		return this;
+
+	};
+
+	function CubicBezierCurve3( v0, v1, v2, v3 ) {
+
+		Curve.call( this );
+
+		this.type = 'CubicBezierCurve3';
+
+		this.v0 = v0 || new Vector3();
+		this.v1 = v1 || new Vector3();
+		this.v2 = v2 || new Vector3();
+		this.v3 = v3 || new Vector3();
+
+	}
+
+	CubicBezierCurve3.prototype = Object.create( Curve.prototype );
+	CubicBezierCurve3.prototype.constructor = CubicBezierCurve3;
+
+	CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;
+
+	CubicBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {
+
+		var point = optionalTarget || new Vector3();
+
+		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;
+
+		point.set(
+			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
+			CubicBezier( t, v0.y, v1.y, v2.y, v3.y ),
+			CubicBezier( t, v0.z, v1.z, v2.z, v3.z )
+		);
+
+		return point;
+
+	};
+
+	CubicBezierCurve3.prototype.copy = function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.v0.copy( source.v0 );
+		this.v1.copy( source.v1 );
+		this.v2.copy( source.v2 );
+		this.v3.copy( source.v3 );
+
+		return this;
+
+	};
+
+	CubicBezierCurve3.prototype.toJSON = function () {
+
+		var data = Curve.prototype.toJSON.call( this );
+
+		data.v0 = this.v0.toArray();
+		data.v1 = this.v1.toArray();
+		data.v2 = this.v2.toArray();
+		data.v3 = this.v3.toArray();
+
+		return data;
+
+	};
+
+	CubicBezierCurve3.prototype.fromJSON = function ( json ) {
+
+		Curve.prototype.fromJSON.call( this, json );
+
+		this.v0.fromArray( json.v0 );
+		this.v1.fromArray( json.v1 );
+		this.v2.fromArray( json.v2 );
+		this.v3.fromArray( json.v3 );
+
+		return this;
+
+	};
+
+	function LineCurve( v1, v2 ) {
+
+		Curve.call( this );
+
+		this.type = 'LineCurve';
+
+		this.v1 = v1 || new Vector2();
+		this.v2 = v2 || new Vector2();
+
+	}
+
+	LineCurve.prototype = Object.create( Curve.prototype );
+	LineCurve.prototype.constructor = LineCurve;
+
+	LineCurve.prototype.isLineCurve = true;
+
+	LineCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+		var point = optionalTarget || new Vector2();
+
+		if ( t === 1 ) {
+
+			point.copy( this.v2 );
+
+		} else {
+
+			point.copy( this.v2 ).sub( this.v1 );
+			point.multiplyScalar( t ).add( this.v1 );
+
+		}
+
+		return point;
+
+	};
+
+	// Line curve is linear, so we can overwrite default getPointAt
+
+	LineCurve.prototype.getPointAt = function ( u, optionalTarget ) {
+
+		return this.getPoint( u, optionalTarget );
+
+	};
+
+	LineCurve.prototype.getTangent = function ( /* t */ ) {
+
+		var tangent = this.v2.clone().sub( this.v1 );
+
+		return tangent.normalize();
+
+	};
+
+	LineCurve.prototype.copy = function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.v1.copy( source.v1 );
+		this.v2.copy( source.v2 );
+
+		return this;
+
+	};
+
+	LineCurve.prototype.toJSON = function () {
+
+		var data = Curve.prototype.toJSON.call( this );
+
+		data.v1 = this.v1.toArray();
+		data.v2 = this.v2.toArray();
+
+		return data;
+
+	};
+
+	LineCurve.prototype.fromJSON = function ( json ) {
+
+		Curve.prototype.fromJSON.call( this, json );
+
+		this.v1.fromArray( json.v1 );
+		this.v2.fromArray( json.v2 );
+
+		return this;
+
+	};
+
+	function LineCurve3( v1, v2 ) {
+
+		Curve.call( this );
+
+		this.type = 'LineCurve3';
+
+		this.v1 = v1 || new Vector3();
+		this.v2 = v2 || new Vector3();
+
+	}
+
+	LineCurve3.prototype = Object.create( Curve.prototype );
+	LineCurve3.prototype.constructor = LineCurve3;
+
+	LineCurve3.prototype.isLineCurve3 = true;
+
+	LineCurve3.prototype.getPoint = function ( t, optionalTarget ) {
+
+		var point = optionalTarget || new Vector3();
+
+		if ( t === 1 ) {
+
+			point.copy( this.v2 );
+
+		} else {
+
+			point.copy( this.v2 ).sub( this.v1 );
+			point.multiplyScalar( t ).add( this.v1 );
+
+		}
+
+		return point;
+
+	};
+
+	// Line curve is linear, so we can overwrite default getPointAt
+
+	LineCurve3.prototype.getPointAt = function ( u, optionalTarget ) {
+
+		return this.getPoint( u, optionalTarget );
+
+	};
+
+	LineCurve3.prototype.copy = function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.v1.copy( source.v1 );
+		this.v2.copy( source.v2 );
+
+		return this;
+
+	};
+
+	LineCurve3.prototype.toJSON = function () {
+
+		var data = Curve.prototype.toJSON.call( this );
+
+		data.v1 = this.v1.toArray();
+		data.v2 = this.v2.toArray();
+
+		return data;
+
+	};
+
+	LineCurve3.prototype.fromJSON = function ( json ) {
+
+		Curve.prototype.fromJSON.call( this, json );
+
+		this.v1.fromArray( json.v1 );
+		this.v2.fromArray( json.v2 );
+
+		return this;
+
+	};
+
+	function QuadraticBezierCurve( v0, v1, v2 ) {
+
+		Curve.call( this );
+
+		this.type = 'QuadraticBezierCurve';
+
+		this.v0 = v0 || new Vector2();
+		this.v1 = v1 || new Vector2();
+		this.v2 = v2 || new Vector2();
+
+	}
+
+	QuadraticBezierCurve.prototype = Object.create( Curve.prototype );
+	QuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve;
+
+	QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;
+
+	QuadraticBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+		var point = optionalTarget || new Vector2();
+
+		var v0 = this.v0, v1 = this.v1, v2 = this.v2;
+
+		point.set(
+			QuadraticBezier( t, v0.x, v1.x, v2.x ),
+			QuadraticBezier( t, v0.y, v1.y, v2.y )
+		);
+
+		return point;
+
+	};
+
+	QuadraticBezierCurve.prototype.copy = function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.v0.copy( source.v0 );
+		this.v1.copy( source.v1 );
+		this.v2.copy( source.v2 );
+
+		return this;
+
+	};
+
+	QuadraticBezierCurve.prototype.toJSON = function () {
+
+		var data = Curve.prototype.toJSON.call( this );
+
+		data.v0 = this.v0.toArray();
+		data.v1 = this.v1.toArray();
+		data.v2 = this.v2.toArray();
+
+		return data;
+
+	};
+
+	QuadraticBezierCurve.prototype.fromJSON = function ( json ) {
+
+		Curve.prototype.fromJSON.call( this, json );
+
+		this.v0.fromArray( json.v0 );
+		this.v1.fromArray( json.v1 );
+		this.v2.fromArray( json.v2 );
+
+		return this;
+
+	};
+
+	function QuadraticBezierCurve3( v0, v1, v2 ) {
+
+		Curve.call( this );
+
+		this.type = 'QuadraticBezierCurve3';
+
+		this.v0 = v0 || new Vector3();
+		this.v1 = v1 || new Vector3();
+		this.v2 = v2 || new Vector3();
+
+	}
+
+	QuadraticBezierCurve3.prototype = Object.create( Curve.prototype );
+	QuadraticBezierCurve3.prototype.constructor = QuadraticBezierCurve3;
+
+	QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;
+
+	QuadraticBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {
+
+		var point = optionalTarget || new Vector3();
+
+		var v0 = this.v0, v1 = this.v1, v2 = this.v2;
+
+		point.set(
+			QuadraticBezier( t, v0.x, v1.x, v2.x ),
+			QuadraticBezier( t, v0.y, v1.y, v2.y ),
+			QuadraticBezier( t, v0.z, v1.z, v2.z )
+		);
+
+		return point;
+
+	};
+
+	QuadraticBezierCurve3.prototype.copy = function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.v0.copy( source.v0 );
+		this.v1.copy( source.v1 );
+		this.v2.copy( source.v2 );
+
+		return this;
+
+	};
+
+	QuadraticBezierCurve3.prototype.toJSON = function () {
+
+		var data = Curve.prototype.toJSON.call( this );
+
+		data.v0 = this.v0.toArray();
+		data.v1 = this.v1.toArray();
+		data.v2 = this.v2.toArray();
+
+		return data;
+
+	};
+
+	QuadraticBezierCurve3.prototype.fromJSON = function ( json ) {
+
+		Curve.prototype.fromJSON.call( this, json );
+
+		this.v0.fromArray( json.v0 );
+		this.v1.fromArray( json.v1 );
+		this.v2.fromArray( json.v2 );
+
+		return this;
+
+	};
+
+	function SplineCurve( points /* array of Vector2 */ ) {
+
+		Curve.call( this );
+
+		this.type = 'SplineCurve';
+
+		this.points = points || [];
+
+	}
+
+	SplineCurve.prototype = Object.create( Curve.prototype );
+	SplineCurve.prototype.constructor = SplineCurve;
+
+	SplineCurve.prototype.isSplineCurve = true;
+
+	SplineCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+		var point = optionalTarget || new Vector2();
+
+		var points = this.points;
+		var p = ( points.length - 1 ) * t;
+
+		var intPoint = Math.floor( p );
+		var weight = p - intPoint;
+
+		var p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];
+		var p1 = points[ intPoint ];
+		var p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
+		var p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];
+
+		point.set(
+			CatmullRom( weight, p0.x, p1.x, p2.x, p3.x ),
+			CatmullRom( weight, p0.y, p1.y, p2.y, p3.y )
+		);
+
+		return point;
+
+	};
+
+	SplineCurve.prototype.copy = function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.points = [];
+
+		for ( var i = 0, l = source.points.length; i < l; i ++ ) {
+
+			var point = source.points[ i ];
+
+			this.points.push( point.clone() );
+
+		}
+
+		return this;
+
+	};
+
+	SplineCurve.prototype.toJSON = function () {
+
+		var data = Curve.prototype.toJSON.call( this );
+
+		data.points = [];
+
+		for ( var i = 0, l = this.points.length; i < l; i ++ ) {
+
+			var point = this.points[ i ];
+			data.points.push( point.toArray() );
+
+		}
+
+		return data;
+
+	};
+
+	SplineCurve.prototype.fromJSON = function ( json ) {
+
+		Curve.prototype.fromJSON.call( this, json );
+
+		this.points = [];
+
+		for ( var i = 0, l = json.points.length; i < l; i ++ ) {
+
+			var point = json.points[ i ];
+			this.points.push( new Vector2().fromArray( point ) );
+
+		}
+
+		return this;
+
+	};
+
+
+
+	var Curves = /*#__PURE__*/Object.freeze({
+		ArcCurve: ArcCurve,
+		CatmullRomCurve3: CatmullRomCurve3,
+		CubicBezierCurve: CubicBezierCurve,
+		CubicBezierCurve3: CubicBezierCurve3,
+		EllipseCurve: EllipseCurve,
+		LineCurve: LineCurve,
+		LineCurve3: LineCurve3,
+		QuadraticBezierCurve: QuadraticBezierCurve,
+		QuadraticBezierCurve3: QuadraticBezierCurve3,
+		SplineCurve: SplineCurve
+	});
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 *
+	 **/
+
+	/**************************************************************
+	 *	Curved Path - a curve path is simply a array of connected
+	 *  curves, but retains the api of a curve
+	 **************************************************************/
+
+	function CurvePath() {
+
+		Curve.call( this );
+
+		this.type = 'CurvePath';
+
+		this.curves = [];
+		this.autoClose = false; // Automatically closes the path
+
+	}
+
+	CurvePath.prototype = Object.assign( Object.create( Curve.prototype ), {
+
+		constructor: CurvePath,
+
+		add: function ( curve ) {
+
+			this.curves.push( curve );
+
+		},
+
+		closePath: function () {
+
+			// Add a line curve if start and end of lines are not connected
+			var startPoint = this.curves[ 0 ].getPoint( 0 );
+			var endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );
+
+			if ( ! startPoint.equals( endPoint ) ) {
+
+				this.curves.push( new LineCurve( endPoint, startPoint ) );
+
+			}
+
+		},
+
+		// To get accurate point with reference to
+		// entire path distance at time t,
+		// following has to be done:
+
+		// 1. Length of each sub path have to be known
+		// 2. Locate and identify type of curve
+		// 3. Get t for the curve
+		// 4. Return curve.getPointAt(t')
+
+		getPoint: function ( t ) {
+
+			var d = t * this.getLength();
+			var curveLengths = this.getCurveLengths();
+			var i = 0;
+
+			// To think about boundaries points.
+
+			while ( i < curveLengths.length ) {
+
+				if ( curveLengths[ i ] >= d ) {
+
+					var diff = curveLengths[ i ] - d;
+					var curve = this.curves[ i ];
+
+					var segmentLength = curve.getLength();
+					var u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;
+
+					return curve.getPointAt( u );
+
+				}
+
+				i ++;
+
+			}
+
+			return null;
+
+			// loop where sum != 0, sum > d , sum+1 <d
+
+		},
+
+		// We cannot use the default THREE.Curve getPoint() with getLength() because in
+		// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
+		// getPoint() depends on getLength
+
+		getLength: function () {
+
+			var lens = this.getCurveLengths();
+			return lens[ lens.length - 1 ];
+
+		},
+
+		// cacheLengths must be recalculated.
+		updateArcLengths: function () {
+
+			this.needsUpdate = true;
+			this.cacheLengths = null;
+			this.getCurveLengths();
+
+		},
+
+		// Compute lengths and cache them
+		// We cannot overwrite getLengths() because UtoT mapping uses it.
+
+		getCurveLengths: function () {
+
+			// We use cache values if curves and cache array are same length
+
+			if ( this.cacheLengths && this.cacheLengths.length === this.curves.length ) {
+
+				return this.cacheLengths;
+
+			}
+
+			// Get length of sub-curve
+			// Push sums into cached array
+
+			var lengths = [], sums = 0;
+
+			for ( var i = 0, l = this.curves.length; i < l; i ++ ) {
+
+				sums += this.curves[ i ].getLength();
+				lengths.push( sums );
+
+			}
+
+			this.cacheLengths = lengths;
+
+			return lengths;
+
+		},
+
+		getSpacedPoints: function ( divisions ) {
+
+			if ( divisions === undefined ) divisions = 40;
+
+			var points = [];
+
+			for ( var i = 0; i <= divisions; i ++ ) {
+
+				points.push( this.getPoint( i / divisions ) );
+
+			}
+
+			if ( this.autoClose ) {
+
+				points.push( points[ 0 ] );
+
+			}
+
+			return points;
+
+		},
+
+		getPoints: function ( divisions ) {
+
+			divisions = divisions || 12;
+
+			var points = [], last;
+
+			for ( var i = 0, curves = this.curves; i < curves.length; i ++ ) {
+
+				var curve = curves[ i ];
+				var resolution = ( curve && curve.isEllipseCurve ) ? divisions * 2
+					: ( curve && ( curve.isLineCurve || curve.isLineCurve3 ) ) ? 1
+						: ( curve && curve.isSplineCurve ) ? divisions * curve.points.length
+							: divisions;
+
+				var pts = curve.getPoints( resolution );
+
+				for ( var j = 0; j < pts.length; j ++ ) {
+
+					var point = pts[ j ];
+
+					if ( last && last.equals( point ) ) continue; // ensures no consecutive points are duplicates
+
+					points.push( point );
+					last = point;
+
+				}
+
+			}
+
+			if ( this.autoClose && points.length > 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) {
+
+				points.push( points[ 0 ] );
+
+			}
+
+			return points;
+
+		},
+
+		copy: function ( source ) {
+
+			Curve.prototype.copy.call( this, source );
+
+			this.curves = [];
+
+			for ( var i = 0, l = source.curves.length; i < l; i ++ ) {
+
+				var curve = source.curves[ i ];
+
+				this.curves.push( curve.clone() );
+
+			}
+
+			this.autoClose = source.autoClose;
+
+			return this;
+
+		},
+
+		toJSON: function () {
+
+			var data = Curve.prototype.toJSON.call( this );
+
+			data.autoClose = this.autoClose;
+			data.curves = [];
+
+			for ( var i = 0, l = this.curves.length; i < l; i ++ ) {
+
+				var curve = this.curves[ i ];
+				data.curves.push( curve.toJSON() );
+
+			}
+
+			return data;
+
+		},
+
+		fromJSON: function ( json ) {
+
+			Curve.prototype.fromJSON.call( this, json );
+
+			this.autoClose = json.autoClose;
+			this.curves = [];
+
+			for ( var i = 0, l = json.curves.length; i < l; i ++ ) {
+
+				var curve = json.curves[ i ];
+				this.curves.push( new Curves[ curve.type ]().fromJSON( curve ) );
+
+			}
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 * Creates free form 2d path using series of points, lines or curves.
+	 **/
+
+	function Path( points ) {
+
+		CurvePath.call( this );
+
+		this.type = 'Path';
+
+		this.currentPoint = new Vector2();
+
+		if ( points ) {
+
+			this.setFromPoints( points );
+
+		}
+
+	}
+
+	Path.prototype = Object.assign( Object.create( CurvePath.prototype ), {
+
+		constructor: Path,
+
+		setFromPoints: function ( points ) {
+
+			this.moveTo( points[ 0 ].x, points[ 0 ].y );
+
+			for ( var i = 1, l = points.length; i < l; i ++ ) {
+
+				this.lineTo( points[ i ].x, points[ i ].y );
+
+			}
+
+		},
+
+		moveTo: function ( x, y ) {
+
+			this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?
+
+		},
+
+		lineTo: function ( x, y ) {
+
+			var curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );
+			this.curves.push( curve );
+
+			this.currentPoint.set( x, y );
+
+		},
+
+		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {
+
+			var curve = new QuadraticBezierCurve(
+				this.currentPoint.clone(),
+				new Vector2( aCPx, aCPy ),
+				new Vector2( aX, aY )
+			);
+
+			this.curves.push( curve );
+
+			this.currentPoint.set( aX, aY );
+
+		},
+
+		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {
+
+			var curve = new CubicBezierCurve(
+				this.currentPoint.clone(),
+				new Vector2( aCP1x, aCP1y ),
+				new Vector2( aCP2x, aCP2y ),
+				new Vector2( aX, aY )
+			);
+
+			this.curves.push( curve );
+
+			this.currentPoint.set( aX, aY );
+
+		},
+
+		splineThru: function ( pts /*Array of Vector*/ ) {
+
+			var npts = [ this.currentPoint.clone() ].concat( pts );
+
+			var curve = new SplineCurve( npts );
+			this.curves.push( curve );
+
+			this.currentPoint.copy( pts[ pts.length - 1 ] );
+
+		},
+
+		arc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
+
+			var x0 = this.currentPoint.x;
+			var y0 = this.currentPoint.y;
+
+			this.absarc( aX + x0, aY + y0, aRadius,
+				aStartAngle, aEndAngle, aClockwise );
+
+		},
+
+		absarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
+
+			this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );
+
+		},
+
+		ellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
+
+			var x0 = this.currentPoint.x;
+			var y0 = this.currentPoint.y;
+
+			this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );
+
+		},
+
+		absellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
+
+			var curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );
+
+			if ( this.curves.length > 0 ) {
+
+				// if a previous curve is present, attempt to join
+				var firstPoint = curve.getPoint( 0 );
+
+				if ( ! firstPoint.equals( this.currentPoint ) ) {
+
+					this.lineTo( firstPoint.x, firstPoint.y );
+
+				}
+
+			}
+
+			this.curves.push( curve );
+
+			var lastPoint = curve.getPoint( 1 );
+			this.currentPoint.copy( lastPoint );
+
+		},
+
+		copy: function ( source ) {
+
+			CurvePath.prototype.copy.call( this, source );
+
+			this.currentPoint.copy( source.currentPoint );
+
+			return this;
+
+		},
+
+		toJSON: function () {
+
+			var data = CurvePath.prototype.toJSON.call( this );
+
+			data.currentPoint = this.currentPoint.toArray();
+
+			return data;
+
+		},
+
+		fromJSON: function ( json ) {
+
+			CurvePath.prototype.fromJSON.call( this, json );
+
+			this.currentPoint.fromArray( json.currentPoint );
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 * Defines a 2d shape plane using paths.
+	 **/
+
+	// STEP 1 Create a path.
+	// STEP 2 Turn path into shape.
+	// STEP 3 ExtrudeGeometry takes in Shape/Shapes
+	// STEP 3a - Extract points from each shape, turn to vertices
+	// STEP 3b - Triangulate each shape, add faces.
+
+	function Shape( points ) {
+
+		Path.call( this, points );
+
+		this.uuid = _Math.generateUUID();
+
+		this.type = 'Shape';
+
+		this.holes = [];
+
+	}
+
+	Shape.prototype = Object.assign( Object.create( Path.prototype ), {
+
+		constructor: Shape,
+
+		getPointsHoles: function ( divisions ) {
+
+			var holesPts = [];
+
+			for ( var i = 0, l = this.holes.length; i < l; i ++ ) {
+
+				holesPts[ i ] = this.holes[ i ].getPoints( divisions );
+
+			}
+
+			return holesPts;
+
+		},
+
+		// get points of shape and holes (keypoints based on segments parameter)
+
+		extractPoints: function ( divisions ) {
+
+			return {
+
+				shape: this.getPoints( divisions ),
+				holes: this.getPointsHoles( divisions )
+
+			};
+
+		},
+
+		copy: function ( source ) {
+
+			Path.prototype.copy.call( this, source );
+
+			this.holes = [];
+
+			for ( var i = 0, l = source.holes.length; i < l; i ++ ) {
+
+				var hole = source.holes[ i ];
+
+				this.holes.push( hole.clone() );
+
+			}
+
+			return this;
+
+		},
+
+		toJSON: function () {
+
+			var data = Path.prototype.toJSON.call( this );
+
+			data.uuid = this.uuid;
+			data.holes = [];
+
+			for ( var i = 0, l = this.holes.length; i < l; i ++ ) {
+
+				var hole = this.holes[ i ];
+				data.holes.push( hole.toJSON() );
+
+			}
+
+			return data;
+
+		},
+
+		fromJSON: function ( json ) {
+
+			Path.prototype.fromJSON.call( this, json );
+
+			this.uuid = json.uuid;
+			this.holes = [];
+
+			for ( var i = 0, l = json.holes.length; i < l; i ++ ) {
+
+				var hole = json.holes[ i ];
+				this.holes.push( new Path().fromJSON( hole ) );
+
+			}
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function Light( color, intensity ) {
+
+		Object3D.call( this );
+
+		this.type = 'Light';
+
+		this.color = new Color( color );
+		this.intensity = intensity !== undefined ? intensity : 1;
+
+		this.receiveShadow = undefined;
+
+	}
+
+	Light.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Light,
+
+		isLight: true,
+
+		copy: function ( source ) {
+
+			Object3D.prototype.copy.call( this, source );
+
+			this.color.copy( source.color );
+			this.intensity = source.intensity;
+
+			return this;
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var data = Object3D.prototype.toJSON.call( this, meta );
+
+			data.object.color = this.color.getHex();
+			data.object.intensity = this.intensity;
+
+			if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();
+
+			if ( this.distance !== undefined ) data.object.distance = this.distance;
+			if ( this.angle !== undefined ) data.object.angle = this.angle;
+			if ( this.decay !== undefined ) data.object.decay = this.decay;
+			if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;
+
+			if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function HemisphereLight( skyColor, groundColor, intensity ) {
+
+		Light.call( this, skyColor, intensity );
+
+		this.type = 'HemisphereLight';
+
+		this.castShadow = undefined;
+
+		this.position.copy( Object3D.DefaultUp );
+		this.updateMatrix();
+
+		this.groundColor = new Color( groundColor );
+
+	}
+
+	HemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+		constructor: HemisphereLight,
+
+		isHemisphereLight: true,
+
+		copy: function ( source ) {
+
+			Light.prototype.copy.call( this, source );
+
+			this.groundColor.copy( source.groundColor );
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function LightShadow( camera ) {
+
+		this.camera = camera;
+
+		this.bias = 0;
+		this.radius = 1;
+
+		this.mapSize = new Vector2( 512, 512 );
+
+		this.map = null;
+		this.matrix = new Matrix4();
+
+	}
+
+	Object.assign( LightShadow.prototype, {
+
+		copy: function ( source ) {
+
+			this.camera = source.camera.clone();
+
+			this.bias = source.bias;
+			this.radius = source.radius;
+
+			this.mapSize.copy( source.mapSize );
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		toJSON: function () {
+
+			var object = {};
+
+			if ( this.bias !== 0 ) object.bias = this.bias;
+			if ( this.radius !== 1 ) object.radius = this.radius;
+			if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();
+
+			object.camera = this.camera.toJSON( false ).object;
+			delete object.camera.matrix;
+
+			return object;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function SpotLightShadow() {
+
+		LightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );
+
+	}
+
+	SpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {
+
+		constructor: SpotLightShadow,
+
+		isSpotLightShadow: true,
+
+		update: function ( light ) {
+
+			var camera = this.camera;
+
+			var fov = _Math.RAD2DEG * 2 * light.angle;
+			var aspect = this.mapSize.width / this.mapSize.height;
+			var far = light.distance || camera.far;
+
+			if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {
+
+				camera.fov = fov;
+				camera.aspect = aspect;
+				camera.far = far;
+				camera.updateProjectionMatrix();
+
+			}
+
+		}
+
+	} );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function SpotLight( color, intensity, distance, angle, penumbra, decay ) {
+
+		Light.call( this, color, intensity );
+
+		this.type = 'SpotLight';
+
+		this.position.copy( Object3D.DefaultUp );
+		this.updateMatrix();
+
+		this.target = new Object3D();
+
+		Object.defineProperty( this, 'power', {
+			get: function () {
+
+				// intensity = power per solid angle.
+				// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
+				return this.intensity * Math.PI;
+
+			},
+			set: function ( power ) {
+
+				// intensity = power per solid angle.
+				// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
+				this.intensity = power / Math.PI;
+
+			}
+		} );
+
+		this.distance = ( distance !== undefined ) ? distance : 0;
+		this.angle = ( angle !== undefined ) ? angle : Math.PI / 3;
+		this.penumbra = ( penumbra !== undefined ) ? penumbra : 0;
+		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.
+
+		this.shadow = new SpotLightShadow();
+
+	}
+
+	SpotLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+		constructor: SpotLight,
+
+		isSpotLight: true,
+
+		copy: function ( source ) {
+
+			Light.prototype.copy.call( this, source );
+
+			this.distance = source.distance;
+			this.angle = source.angle;
+			this.penumbra = source.penumbra;
+			this.decay = source.decay;
+
+			this.target = source.target.clone();
+
+			this.shadow = source.shadow.clone();
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+
+	function PointLight( color, intensity, distance, decay ) {
+
+		Light.call( this, color, intensity );
+
+		this.type = 'PointLight';
+
+		Object.defineProperty( this, 'power', {
+			get: function () {
+
+				// intensity = power per solid angle.
+				// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
+				return this.intensity * 4 * Math.PI;
+
+			},
+			set: function ( power ) {
+
+				// intensity = power per solid angle.
+				// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
+				this.intensity = power / ( 4 * Math.PI );
+
+			}
+		} );
+
+		this.distance = ( distance !== undefined ) ? distance : 0;
+		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.
+
+		this.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) );
+
+	}
+
+	PointLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+		constructor: PointLight,
+
+		isPointLight: true,
+
+		copy: function ( source ) {
+
+			Light.prototype.copy.call( this, source );
+
+			this.distance = source.distance;
+			this.decay = source.decay;
+
+			this.shadow = source.shadow.clone();
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author arose / http://github.com/arose
+	 */
+
+	function OrthographicCamera( left, right, top, bottom, near, far ) {
+
+		Camera.call( this );
+
+		this.type = 'OrthographicCamera';
+
+		this.zoom = 1;
+		this.view = null;
+
+		this.left = ( left !== undefined ) ? left : - 1;
+		this.right = ( right !== undefined ) ? right : 1;
+		this.top = ( top !== undefined ) ? top : 1;
+		this.bottom = ( bottom !== undefined ) ? bottom : - 1;
+
+		this.near = ( near !== undefined ) ? near : 0.1;
+		this.far = ( far !== undefined ) ? far : 2000;
+
+		this.updateProjectionMatrix();
+
+	}
+
+	OrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), {
+
+		constructor: OrthographicCamera,
+
+		isOrthographicCamera: true,
+
+		copy: function ( source, recursive ) {
+
+			Camera.prototype.copy.call( this, source, recursive );
+
+			this.left = source.left;
+			this.right = source.right;
+			this.top = source.top;
+			this.bottom = source.bottom;
+			this.near = source.near;
+			this.far = source.far;
+
+			this.zoom = source.zoom;
+			this.view = source.view === null ? null : Object.assign( {}, source.view );
+
+			return this;
+
+		},
+
+		setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {
+
+			if ( this.view === null ) {
+
+				this.view = {
+					enabled: true,
+					fullWidth: 1,
+					fullHeight: 1,
+					offsetX: 0,
+					offsetY: 0,
+					width: 1,
+					height: 1
+				};
+
+			}
+
+			this.view.enabled = true;
+			this.view.fullWidth = fullWidth;
+			this.view.fullHeight = fullHeight;
+			this.view.offsetX = x;
+			this.view.offsetY = y;
+			this.view.width = width;
+			this.view.height = height;
+
+			this.updateProjectionMatrix();
+
+		},
+
+		clearViewOffset: function () {
+
+			if ( this.view !== null ) {
+
+				this.view.enabled = false;
+
+			}
+
+			this.updateProjectionMatrix();
+
+		},
+
+		updateProjectionMatrix: function () {
+
+			var dx = ( this.right - this.left ) / ( 2 * this.zoom );
+			var dy = ( this.top - this.bottom ) / ( 2 * this.zoom );
+			var cx = ( this.right + this.left ) / 2;
+			var cy = ( this.top + this.bottom ) / 2;
+
+			var left = cx - dx;
+			var right = cx + dx;
+			var top = cy + dy;
+			var bottom = cy - dy;
+
+			if ( this.view !== null && this.view.enabled ) {
+
+				var zoomW = this.zoom / ( this.view.width / this.view.fullWidth );
+				var zoomH = this.zoom / ( this.view.height / this.view.fullHeight );
+				var scaleW = ( this.right - this.left ) / this.view.width;
+				var scaleH = ( this.top - this.bottom ) / this.view.height;
+
+				left += scaleW * ( this.view.offsetX / zoomW );
+				right = left + scaleW * ( this.view.width / zoomW );
+				top -= scaleH * ( this.view.offsetY / zoomH );
+				bottom = top - scaleH * ( this.view.height / zoomH );
+
+			}
+
+			this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );
+
+			this.projectionMatrixInverse.getInverse( this.projectionMatrix );
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var data = Object3D.prototype.toJSON.call( this, meta );
+
+			data.object.zoom = this.zoom;
+			data.object.left = this.left;
+			data.object.right = this.right;
+			data.object.top = this.top;
+			data.object.bottom = this.bottom;
+			data.object.near = this.near;
+			data.object.far = this.far;
+
+			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function DirectionalLightShadow( ) {
+
+		LightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );
+
+	}
+
+	DirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {
+
+		constructor: DirectionalLightShadow
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function DirectionalLight( color, intensity ) {
+
+		Light.call( this, color, intensity );
+
+		this.type = 'DirectionalLight';
+
+		this.position.copy( Object3D.DefaultUp );
+		this.updateMatrix();
+
+		this.target = new Object3D();
+
+		this.shadow = new DirectionalLightShadow();
+
+	}
+
+	DirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+		constructor: DirectionalLight,
+
+		isDirectionalLight: true,
+
+		copy: function ( source ) {
+
+			Light.prototype.copy.call( this, source );
+
+			this.target = source.target.clone();
+
+			this.shadow = source.shadow.clone();
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function AmbientLight( color, intensity ) {
+
+		Light.call( this, color, intensity );
+
+		this.type = 'AmbientLight';
+
+		this.castShadow = undefined;
+
+	}
+
+	AmbientLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+		constructor: AmbientLight,
+
+		isAmbientLight: true
+
+	} );
+
+	/**
+	 * @author abelnation / http://github.com/abelnation
+	 */
+
+	function RectAreaLight( color, intensity, width, height ) {
+
+		Light.call( this, color, intensity );
+
+		this.type = 'RectAreaLight';
+
+		this.width = ( width !== undefined ) ? width : 10;
+		this.height = ( height !== undefined ) ? height : 10;
+
+	}
+
+	RectAreaLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+		constructor: RectAreaLight,
+
+		isRectAreaLight: true,
+
+		copy: function ( source ) {
+
+			Light.prototype.copy.call( this, source );
+
+			this.width = source.width;
+			this.height = source.height;
+
+			return this;
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var data = Light.prototype.toJSON.call( this, meta );
+
+			data.object.width = this.width;
+			data.object.height = this.height;
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function MaterialLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+		this.textures = {};
+
+	}
+
+	Object.assign( MaterialLoader.prototype, {
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var scope = this;
+
+			var loader = new FileLoader( scope.manager );
+			loader.setPath( scope.path );
+			loader.load( url, function ( text ) {
+
+				onLoad( scope.parse( JSON.parse( text ) ) );
+
+			}, onProgress, onError );
+
+		},
+
+		parse: function ( json ) {
+
+			var textures = this.textures;
+
+			function getTexture( name ) {
+
+				if ( textures[ name ] === undefined ) {
+
+					console.warn( 'THREE.MaterialLoader: Undefined texture', name );
+
+				}
+
+				return textures[ name ];
+
+			}
+
+			var material = new Materials[ json.type ]();
+
+			if ( json.uuid !== undefined ) material.uuid = json.uuid;
+			if ( json.name !== undefined ) material.name = json.name;
+			if ( json.color !== undefined ) material.color.setHex( json.color );
+			if ( json.roughness !== undefined ) material.roughness = json.roughness;
+			if ( json.metalness !== undefined ) material.metalness = json.metalness;
+			if ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );
+			if ( json.specular !== undefined ) material.specular.setHex( json.specular );
+			if ( json.shininess !== undefined ) material.shininess = json.shininess;
+			if ( json.clearCoat !== undefined ) material.clearCoat = json.clearCoat;
+			if ( json.clearCoatRoughness !== undefined ) material.clearCoatRoughness = json.clearCoatRoughness;
+			if ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;
+			if ( json.fog !== undefined ) material.fog = json.fog;
+			if ( json.flatShading !== undefined ) material.flatShading = json.flatShading;
+			if ( json.blending !== undefined ) material.blending = json.blending;
+			if ( json.combine !== undefined ) material.combine = json.combine;
+			if ( json.side !== undefined ) material.side = json.side;
+			if ( json.opacity !== undefined ) material.opacity = json.opacity;
+			if ( json.transparent !== undefined ) material.transparent = json.transparent;
+			if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;
+			if ( json.depthTest !== undefined ) material.depthTest = json.depthTest;
+			if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;
+			if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;
+			if ( json.wireframe !== undefined ) material.wireframe = json.wireframe;
+			if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;
+			if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;
+			if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;
+
+			if ( json.rotation !== undefined ) material.rotation = json.rotation;
+
+			if ( json.linewidth !== 1 ) material.linewidth = json.linewidth;
+			if ( json.dashSize !== undefined ) material.dashSize = json.dashSize;
+			if ( json.gapSize !== undefined ) material.gapSize = json.gapSize;
+			if ( json.scale !== undefined ) material.scale = json.scale;
+
+			if ( json.polygonOffset !== undefined ) material.polygonOffset = json.polygonOffset;
+			if ( json.polygonOffsetFactor !== undefined ) material.polygonOffsetFactor = json.polygonOffsetFactor;
+			if ( json.polygonOffsetUnits !== undefined ) material.polygonOffsetUnits = json.polygonOffsetUnits;
+
+			if ( json.skinning !== undefined ) material.skinning = json.skinning;
+			if ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets;
+			if ( json.dithering !== undefined ) material.dithering = json.dithering;
+
+			if ( json.visible !== undefined ) material.visible = json.visible;
+			if ( json.userData !== undefined ) material.userData = json.userData;
+
+			// Shader Material
+
+			if ( json.uniforms !== undefined ) {
+
+				for ( var name in json.uniforms ) {
+
+					var uniform = json.uniforms[ name ];
+
+					material.uniforms[ name ] = {};
+
+					switch ( uniform.type ) {
+
+						case 't':
+							material.uniforms[ name ].value = getTexture( uniform.value );
+							break;
+
+						case 'c':
+							material.uniforms[ name ].value = new Color().setHex( uniform.value );
+							break;
+
+						case 'v2':
+							material.uniforms[ name ].value = new Vector2().fromArray( uniform.value );
+							break;
+
+						case 'v3':
+							material.uniforms[ name ].value = new Vector3().fromArray( uniform.value );
+							break;
+
+						case 'v4':
+							material.uniforms[ name ].value = new Vector4().fromArray( uniform.value );
+							break;
+
+						case 'm3':
+							material.uniforms[ name ].value = new Matrix3().fromArray( uniform.value );
+
+						case 'm4':
+							material.uniforms[ name ].value = new Matrix4().fromArray( uniform.value );
+							break;
+
+						default:
+							material.uniforms[ name ].value = uniform.value;
+
+					}
+
+				}
+
+			}
+
+			if ( json.defines !== undefined ) material.defines = json.defines;
+			if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;
+			if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;
+
+			if ( json.extensions !== undefined ) {
+
+				for ( var key in json.extensions ) {
+
+					material.extensions[ key ] = json.extensions[ key ];
+
+				}
+
+			}
+
+			// Deprecated
+
+			if ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading
+
+			// for PointsMaterial
+
+			if ( json.size !== undefined ) material.size = json.size;
+			if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;
+
+			// maps
+
+			if ( json.map !== undefined ) material.map = getTexture( json.map );
+			if ( json.matcap !== undefined ) material.matcap = getTexture( json.matcap );
+
+			if ( json.alphaMap !== undefined ) {
+
+				material.alphaMap = getTexture( json.alphaMap );
+				material.transparent = true;
+
+			}
+
+			if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );
+			if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;
+
+			if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );
+			if ( json.normalMapType !== undefined ) material.normalMapType = json.normalMapType;
+			if ( json.normalScale !== undefined ) {
+
+				var normalScale = json.normalScale;
+
+				if ( Array.isArray( normalScale ) === false ) {
+
+					// Blender exporter used to export a scalar. See #7459
+
+					normalScale = [ normalScale, normalScale ];
+
+				}
+
+				material.normalScale = new Vector2().fromArray( normalScale );
+
+			}
+
+			if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );
+			if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;
+			if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;
+
+			if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );
+			if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );
+
+			if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );
+			if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;
+
+			if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );
+
+			if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );
+			if ( json.envMapIntensity !== undefined ) material.envMapIntensity = json.envMapIntensity;
+
+			if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;
+
+			if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );
+			if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;
+
+			if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );
+			if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;
+
+			if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );
+
+			return material;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		},
+
+		setTextures: function ( value ) {
+
+			this.textures = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author Don McCurdy / https://www.donmccurdy.com
+	 */
+
+	var LoaderUtils = {
+
+		decodeText: function ( array ) {
+
+			if ( typeof TextDecoder !== 'undefined' ) {
+
+				return new TextDecoder().decode( array );
+
+			}
+
+			// Avoid the String.fromCharCode.apply(null, array) shortcut, which
+			// throws a "maximum call stack size exceeded" error for large arrays.
+
+			var s = '';
+
+			for ( var i = 0, il = array.length; i < il; i ++ ) {
+
+				// Implicitly assumes little-endian.
+				s += String.fromCharCode( array[ i ] );
+
+			}
+
+			try {
+
+				// merges multi-byte utf-8 characters.
+
+				return decodeURIComponent( escape( s ) );
+
+			} catch ( e ) { // see #16358
+
+				return s;
+
+			}
+
+		},
+
+		extractUrlBase: function ( url ) {
+
+			var index = url.lastIndexOf( '/' );
+
+			if ( index === - 1 ) return './';
+
+			return url.substr( 0, index + 1 );
+
+		}
+
+	};
+
+	/**
+	 * @author benaadams / https://twitter.com/ben_a_adams
+	 */
+
+	function InstancedBufferGeometry() {
+
+		BufferGeometry.call( this );
+
+		this.type = 'InstancedBufferGeometry';
+		this.maxInstancedCount = undefined;
+
+	}
+
+	InstancedBufferGeometry.prototype = Object.assign( Object.create( BufferGeometry.prototype ), {
+
+		constructor: InstancedBufferGeometry,
+
+		isInstancedBufferGeometry: true,
+
+		copy: function ( source ) {
+
+			BufferGeometry.prototype.copy.call( this, source );
+
+			this.maxInstancedCount = source.maxInstancedCount;
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		toJSON: function () {
+
+			var data = BufferGeometry.prototype.toJSON.call( this );
+
+			data.maxInstancedCount = this.maxInstancedCount;
+
+			data.isInstancedBufferGeometry = true;
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author benaadams / https://twitter.com/ben_a_adams
+	 */
+
+	function InstancedBufferAttribute( array, itemSize, normalized, meshPerAttribute ) {
+
+		if ( typeof ( normalized ) === 'number' ) {
+
+			meshPerAttribute = normalized;
+
+			normalized = false;
+
+			console.error( 'THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.' );
+
+		}
+
+		BufferAttribute.call( this, array, itemSize, normalized );
+
+		this.meshPerAttribute = meshPerAttribute || 1;
+
+	}
+
+	InstancedBufferAttribute.prototype = Object.assign( Object.create( BufferAttribute.prototype ), {
+
+		constructor: InstancedBufferAttribute,
+
+		isInstancedBufferAttribute: true,
+
+		copy: function ( source ) {
+
+			BufferAttribute.prototype.copy.call( this, source );
+
+			this.meshPerAttribute = source.meshPerAttribute;
+
+			return this;
+
+		},
+
+		toJSON: function ()	{
+
+			var data = BufferAttribute.prototype.toJSON.call( this );
+
+			data.meshPerAttribute = this.meshPerAttribute;
+
+			data.isInstancedBufferAttribute = true;
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function BufferGeometryLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	}
+
+	Object.assign( BufferGeometryLoader.prototype, {
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var scope = this;
+
+			var loader = new FileLoader( scope.manager );
+			loader.setPath( scope.path );
+			loader.load( url, function ( text ) {
+
+				onLoad( scope.parse( JSON.parse( text ) ) );
+
+			}, onProgress, onError );
+
+		},
+
+		parse: function ( json ) {
+
+			var geometry = json.isInstancedBufferGeometry ? new InstancedBufferGeometry() : new BufferGeometry();
+
+			var index = json.data.index;
+
+			if ( index !== undefined ) {
+
+				var typedArray = new TYPED_ARRAYS[ index.type ]( index.array );
+				geometry.setIndex( new BufferAttribute( typedArray, 1 ) );
+
+			}
+
+			var attributes = json.data.attributes;
+
+			for ( var key in attributes ) {
+
+				var attribute = attributes[ key ];
+				var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );
+				var bufferAttributeConstr = attribute.isInstancedBufferAttribute ? InstancedBufferAttribute : BufferAttribute;
+				var bufferAttribute = new bufferAttributeConstr( typedArray, attribute.itemSize, attribute.normalized );
+				if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name;
+				geometry.addAttribute( key, bufferAttribute );
+
+			}
+
+			var morphAttributes = json.data.morphAttributes;
+
+			if ( morphAttributes ) {
+
+				for ( var key in morphAttributes ) {
+
+					var attributeArray = morphAttributes[ key ];
+
+					var array = [];
+
+					for ( var i = 0, il = attributeArray.length; i < il; i ++ ) {
+
+						var attribute = attributeArray[ i ];
+						var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );
+
+						var bufferAttribute = new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized );
+						if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name;
+						array.push( bufferAttribute );
+
+					}
+
+					geometry.morphAttributes[ key ] = array;
+
+				}
+
+			}
+
+			var groups = json.data.groups || json.data.drawcalls || json.data.offsets;
+
+			if ( groups !== undefined ) {
+
+				for ( var i = 0, n = groups.length; i !== n; ++ i ) {
+
+					var group = groups[ i ];
+
+					geometry.addGroup( group.start, group.count, group.materialIndex );
+
+				}
+
+			}
+
+			var boundingSphere = json.data.boundingSphere;
+
+			if ( boundingSphere !== undefined ) {
+
+				var center = new Vector3();
+
+				if ( boundingSphere.center !== undefined ) {
+
+					center.fromArray( boundingSphere.center );
+
+				}
+
+				geometry.boundingSphere = new Sphere( center, boundingSphere.radius );
+
+			}
+
+			if ( json.name ) geometry.name = json.name;
+			if ( json.userData ) geometry.userData = json.userData;
+
+			return geometry;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	} );
+
+	var TYPED_ARRAYS = {
+		Int8Array: Int8Array,
+		Uint8Array: Uint8Array,
+		// Workaround for IE11 pre KB2929437. See #11440
+		Uint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array,
+		Int16Array: Int16Array,
+		Uint16Array: Uint16Array,
+		Int32Array: Int32Array,
+		Uint32Array: Uint32Array,
+		Float32Array: Float32Array,
+		Float64Array: Float64Array
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function ObjectLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+		this.resourcePath = '';
+
+	}
+
+	Object.assign( ObjectLoader.prototype, {
+
+		crossOrigin: 'anonymous',
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var scope = this;
+
+			var path = ( this.path === undefined ) ? LoaderUtils.extractUrlBase( url ) : this.path;
+			this.resourcePath = this.resourcePath || path;
+
+			var loader = new FileLoader( scope.manager );
+			loader.setPath( this.path );
+			loader.load( url, function ( text ) {
+
+				var json = null;
+
+				try {
+
+					json = JSON.parse( text );
+
+				} catch ( error ) {
+
+					if ( onError !== undefined ) onError( error );
+
+					console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message );
+
+					return;
+
+				}
+
+				var metadata = json.metadata;
+
+				if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {
+
+					console.error( 'THREE.ObjectLoader: Can\'t load ' + url );
+					return;
+
+				}
+
+				scope.parse( json, onLoad );
+
+			}, onProgress, onError );
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		},
+
+		setResourcePath: function ( value ) {
+
+			this.resourcePath = value;
+			return this;
+
+		},
+
+		setCrossOrigin: function ( value ) {
+
+			this.crossOrigin = value;
+			return this;
+
+		},
+
+		parse: function ( json, onLoad ) {
+
+			var shapes = this.parseShape( json.shapes );
+			var geometries = this.parseGeometries( json.geometries, shapes );
+
+			var images = this.parseImages( json.images, function () {
+
+				if ( onLoad !== undefined ) onLoad( object );
+
+			} );
+
+			var textures = this.parseTextures( json.textures, images );
+			var materials = this.parseMaterials( json.materials, textures );
+
+			var object = this.parseObject( json.object, geometries, materials );
+
+			if ( json.animations ) {
+
+				object.animations = this.parseAnimations( json.animations );
+
+			}
+
+			if ( json.images === undefined || json.images.length === 0 ) {
+
+				if ( onLoad !== undefined ) onLoad( object );
+
+			}
+
+			return object;
+
+		},
+
+		parseShape: function ( json ) {
+
+			var shapes = {};
+
+			if ( json !== undefined ) {
+
+				for ( var i = 0, l = json.length; i < l; i ++ ) {
+
+					var shape = new Shape().fromJSON( json[ i ] );
+
+					shapes[ shape.uuid ] = shape;
+
+				}
+
+			}
+
+			return shapes;
+
+		},
+
+		parseGeometries: function ( json, shapes ) {
+
+			var geometries = {};
+
+			if ( json !== undefined ) {
+
+				var bufferGeometryLoader = new BufferGeometryLoader();
+
+				for ( var i = 0, l = json.length; i < l; i ++ ) {
+
+					var geometry;
+					var data = json[ i ];
+
+					switch ( data.type ) {
+
+						case 'PlaneGeometry':
+						case 'PlaneBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.width,
+								data.height,
+								data.widthSegments,
+								data.heightSegments
+							);
+
+							break;
+
+						case 'BoxGeometry':
+						case 'BoxBufferGeometry':
+						case 'CubeGeometry': // backwards compatible
+
+							geometry = new Geometries[ data.type ](
+								data.width,
+								data.height,
+								data.depth,
+								data.widthSegments,
+								data.heightSegments,
+								data.depthSegments
+							);
+
+							break;
+
+						case 'CircleGeometry':
+						case 'CircleBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.radius,
+								data.segments,
+								data.thetaStart,
+								data.thetaLength
+							);
+
+							break;
+
+						case 'CylinderGeometry':
+						case 'CylinderBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.radiusTop,
+								data.radiusBottom,
+								data.height,
+								data.radialSegments,
+								data.heightSegments,
+								data.openEnded,
+								data.thetaStart,
+								data.thetaLength
+							);
+
+							break;
+
+						case 'ConeGeometry':
+						case 'ConeBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.radius,
+								data.height,
+								data.radialSegments,
+								data.heightSegments,
+								data.openEnded,
+								data.thetaStart,
+								data.thetaLength
+							);
+
+							break;
+
+						case 'SphereGeometry':
+						case 'SphereBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.radius,
+								data.widthSegments,
+								data.heightSegments,
+								data.phiStart,
+								data.phiLength,
+								data.thetaStart,
+								data.thetaLength
+							);
+
+							break;
+
+						case 'DodecahedronGeometry':
+						case 'DodecahedronBufferGeometry':
+						case 'IcosahedronGeometry':
+						case 'IcosahedronBufferGeometry':
+						case 'OctahedronGeometry':
+						case 'OctahedronBufferGeometry':
+						case 'TetrahedronGeometry':
+						case 'TetrahedronBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.radius,
+								data.detail
+							);
+
+							break;
+
+						case 'RingGeometry':
+						case 'RingBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.innerRadius,
+								data.outerRadius,
+								data.thetaSegments,
+								data.phiSegments,
+								data.thetaStart,
+								data.thetaLength
+							);
+
+							break;
+
+						case 'TorusGeometry':
+						case 'TorusBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.radius,
+								data.tube,
+								data.radialSegments,
+								data.tubularSegments,
+								data.arc
+							);
+
+							break;
+
+						case 'TorusKnotGeometry':
+						case 'TorusKnotBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.radius,
+								data.tube,
+								data.tubularSegments,
+								data.radialSegments,
+								data.p,
+								data.q
+							);
+
+							break;
+
+						case 'TubeGeometry':
+						case 'TubeBufferGeometry':
+
+							// This only works for built-in curves (e.g. CatmullRomCurve3).
+							// User defined curves or instances of CurvePath will not be deserialized.
+							geometry = new Geometries[ data.type ](
+								new Curves[ data.path.type ]().fromJSON( data.path ),
+								data.tubularSegments,
+								data.radius,
+								data.radialSegments,
+								data.closed
+							);
+
+							break;
+
+						case 'LatheGeometry':
+						case 'LatheBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.points,
+								data.segments,
+								data.phiStart,
+								data.phiLength
+							);
+
+							break;
+
+						case 'PolyhedronGeometry':
+						case 'PolyhedronBufferGeometry':
+
+							geometry = new Geometries[ data.type ](
+								data.vertices,
+								data.indices,
+								data.radius,
+								data.details
+							);
+
+							break;
+
+						case 'ShapeGeometry':
+						case 'ShapeBufferGeometry':
+
+							var geometryShapes = [];
+
+							for ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {
+
+								var shape = shapes[ data.shapes[ j ] ];
+
+								geometryShapes.push( shape );
+
+							}
+
+							geometry = new Geometries[ data.type ](
+								geometryShapes,
+								data.curveSegments
+							);
+
+							break;
+
+
+						case 'ExtrudeGeometry':
+						case 'ExtrudeBufferGeometry':
+
+							var geometryShapes = [];
+
+							for ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {
+
+								var shape = shapes[ data.shapes[ j ] ];
+
+								geometryShapes.push( shape );
+
+							}
+
+							var extrudePath = data.options.extrudePath;
+
+							if ( extrudePath !== undefined ) {
+
+								data.options.extrudePath = new Curves[ extrudePath.type ]().fromJSON( extrudePath );
+
+							}
+
+							geometry = new Geometries[ data.type ](
+								geometryShapes,
+								data.options
+							);
+
+							break;
+
+						case 'BufferGeometry':
+						case 'InstancedBufferGeometry':
+
+							geometry = bufferGeometryLoader.parse( data );
+
+							break;
+
+						case 'Geometry':
+
+							if ( 'THREE' in window && 'LegacyJSONLoader' in THREE ) {
+
+								var geometryLoader = new THREE.LegacyJSONLoader();
+								geometry = geometryLoader.parse( data, this.resourcePath ).geometry;
+
+
+							} else {
+
+								console.error( 'THREE.ObjectLoader: You have to import LegacyJSONLoader in order load geometry data of type "Geometry".' );
+
+							}
+
+							break;
+
+						default:
+
+							console.warn( 'THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"' );
+
+							continue;
+
+					}
+
+					geometry.uuid = data.uuid;
+
+					if ( data.name !== undefined ) geometry.name = data.name;
+					if ( geometry.isBufferGeometry === true && data.userData !== undefined ) geometry.userData = data.userData;
+
+					geometries[ data.uuid ] = geometry;
+
+				}
+
+			}
+
+			return geometries;
+
+		},
+
+		parseMaterials: function ( json, textures ) {
+
+			var cache = {}; // MultiMaterial
+			var materials = {};
+
+			if ( json !== undefined ) {
+
+				var loader = new MaterialLoader();
+				loader.setTextures( textures );
+
+				for ( var i = 0, l = json.length; i < l; i ++ ) {
+
+					var data = json[ i ];
+
+					if ( data.type === 'MultiMaterial' ) {
+
+						// Deprecated
+
+						var array = [];
+
+						for ( var j = 0; j < data.materials.length; j ++ ) {
+
+							var material = data.materials[ j ];
+
+							if ( cache[ material.uuid ] === undefined ) {
+
+								cache[ material.uuid ] = loader.parse( material );
+
+							}
+
+							array.push( cache[ material.uuid ] );
+
+						}
+
+						materials[ data.uuid ] = array;
+
+					} else {
+
+						if ( cache[ data.uuid ] === undefined ) {
+
+							cache[ data.uuid ] = loader.parse( data );
+
+						}
+
+						materials[ data.uuid ] = cache[ data.uuid ];
+
+					}
+
+				}
+
+			}
+
+			return materials;
+
+		},
+
+		parseAnimations: function ( json ) {
+
+			var animations = [];
+
+			for ( var i = 0; i < json.length; i ++ ) {
+
+				var data = json[ i ];
+
+				var clip = AnimationClip.parse( data );
+
+				if ( data.uuid !== undefined ) clip.uuid = data.uuid;
+
+				animations.push( clip );
+
+			}
+
+			return animations;
+
+		},
+
+		parseImages: function ( json, onLoad ) {
+
+			var scope = this;
+			var images = {};
+
+			function loadImage( url ) {
+
+				scope.manager.itemStart( url );
+
+				return loader.load( url, function () {
+
+					scope.manager.itemEnd( url );
+
+				}, undefined, function () {
+
+					scope.manager.itemError( url );
+					scope.manager.itemEnd( url );
+
+				} );
+
+			}
+
+			if ( json !== undefined && json.length > 0 ) {
+
+				var manager = new LoadingManager( onLoad );
+
+				var loader = new ImageLoader( manager );
+				loader.setCrossOrigin( this.crossOrigin );
+
+				for ( var i = 0, il = json.length; i < il; i ++ ) {
+
+					var image = json[ i ];
+					var url = image.url;
+
+					if ( Array.isArray( url ) ) {
+
+						// load array of images e.g CubeTexture
+
+						images[ image.uuid ] = [];
+
+						for ( var j = 0, jl = url.length; j < jl; j ++ ) {
+
+							var currentUrl = url[ j ];
+
+							var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( currentUrl ) ? currentUrl : scope.resourcePath + currentUrl;
+
+							images[ image.uuid ].push( loadImage( path ) );
+
+						}
+
+					} else {
+
+						// load single image
+
+						var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( image.url ) ? image.url : scope.resourcePath + image.url;
+
+						images[ image.uuid ] = loadImage( path );
+
+					}
+
+				}
+
+			}
+
+			return images;
+
+		},
+
+		parseTextures: function ( json, images ) {
+
+			function parseConstant( value, type ) {
+
+				if ( typeof value === 'number' ) return value;
+
+				console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );
+
+				return type[ value ];
+
+			}
+
+			var textures = {};
+
+			if ( json !== undefined ) {
+
+				for ( var i = 0, l = json.length; i < l; i ++ ) {
+
+					var data = json[ i ];
+
+					if ( data.image === undefined ) {
+
+						console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid );
+
+					}
+
+					if ( images[ data.image ] === undefined ) {
+
+						console.warn( 'THREE.ObjectLoader: Undefined image', data.image );
+
+					}
+
+					var texture;
+
+					if ( Array.isArray( images[ data.image ] ) ) {
+
+						texture = new CubeTexture( images[ data.image ] );
+
+					} else {
+
+						texture = new Texture( images[ data.image ] );
+
+					}
+
+					texture.needsUpdate = true;
+
+					texture.uuid = data.uuid;
+
+					if ( data.name !== undefined ) texture.name = data.name;
+
+					if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );
+
+					if ( data.offset !== undefined ) texture.offset.fromArray( data.offset );
+					if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );
+					if ( data.center !== undefined ) texture.center.fromArray( data.center );
+					if ( data.rotation !== undefined ) texture.rotation = data.rotation;
+
+					if ( data.wrap !== undefined ) {
+
+						texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );
+						texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );
+
+					}
+
+					if ( data.format !== undefined ) texture.format = data.format;
+					if ( data.type !== undefined ) texture.type = data.type;
+					if ( data.encoding !== undefined ) texture.encoding = data.encoding;
+
+					if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );
+					if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );
+					if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;
+
+					if ( data.flipY !== undefined ) texture.flipY = data.flipY;
+
+					if ( data.premultiplyAlpha !== undefined ) texture.premultiplyAlpha = data.premultiplyAlpha;
+					if ( data.unpackAlignment !== undefined ) texture.unpackAlignment = data.unpackAlignment;
+
+					textures[ data.uuid ] = texture;
+
+				}
+
+			}
+
+			return textures;
+
+		},
+
+		parseObject: function ( data, geometries, materials ) {
+
+			var object;
+
+			function getGeometry( name ) {
+
+				if ( geometries[ name ] === undefined ) {
+
+					console.warn( 'THREE.ObjectLoader: Undefined geometry', name );
+
+				}
+
+				return geometries[ name ];
+
+			}
+
+			function getMaterial( name ) {
+
+				if ( name === undefined ) return undefined;
+
+				if ( Array.isArray( name ) ) {
+
+					var array = [];
+
+					for ( var i = 0, l = name.length; i < l; i ++ ) {
+
+						var uuid = name[ i ];
+
+						if ( materials[ uuid ] === undefined ) {
+
+							console.warn( 'THREE.ObjectLoader: Undefined material', uuid );
+
+						}
+
+						array.push( materials[ uuid ] );
+
+					}
+
+					return array;
+
+				}
+
+				if ( materials[ name ] === undefined ) {
+
+					console.warn( 'THREE.ObjectLoader: Undefined material', name );
+
+				}
+
+				return materials[ name ];
+
+			}
+
+			switch ( data.type ) {
+
+				case 'Scene':
+
+					object = new Scene();
+
+					if ( data.background !== undefined ) {
+
+						if ( Number.isInteger( data.background ) ) {
+
+							object.background = new Color( data.background );
+
+						}
+
+					}
+
+					if ( data.fog !== undefined ) {
+
+						if ( data.fog.type === 'Fog' ) {
+
+							object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );
+
+						} else if ( data.fog.type === 'FogExp2' ) {
+
+							object.fog = new FogExp2( data.fog.color, data.fog.density );
+
+						}
+
+					}
+
+					break;
+
+				case 'PerspectiveCamera':
+
+					object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );
+
+					if ( data.focus !== undefined ) object.focus = data.focus;
+					if ( data.zoom !== undefined ) object.zoom = data.zoom;
+					if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;
+					if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;
+					if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );
+
+					break;
+
+				case 'OrthographicCamera':
+
+					object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );
+
+					if ( data.zoom !== undefined ) object.zoom = data.zoom;
+					if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );
+
+					break;
+
+				case 'AmbientLight':
+
+					object = new AmbientLight( data.color, data.intensity );
+
+					break;
+
+				case 'DirectionalLight':
+
+					object = new DirectionalLight( data.color, data.intensity );
+
+					break;
+
+				case 'PointLight':
+
+					object = new PointLight( data.color, data.intensity, data.distance, data.decay );
+
+					break;
+
+				case 'RectAreaLight':
+
+					object = new RectAreaLight( data.color, data.intensity, data.width, data.height );
+
+					break;
+
+				case 'SpotLight':
+
+					object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );
+
+					break;
+
+				case 'HemisphereLight':
+
+					object = new HemisphereLight( data.color, data.groundColor, data.intensity );
+
+					break;
+
+				case 'SkinnedMesh':
+
+					console.warn( 'THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.' );
+
+				case 'Mesh':
+
+					var geometry = getGeometry( data.geometry );
+					var material = getMaterial( data.material );
+
+					if ( geometry.bones && geometry.bones.length > 0 ) {
+
+						object = new SkinnedMesh( geometry, material );
+
+					} else {
+
+						object = new Mesh( geometry, material );
+
+					}
+
+					if ( data.drawMode !== undefined ) object.setDrawMode( data.drawMode );
+
+					break;
+
+				case 'LOD':
+
+					object = new LOD();
+
+					break;
+
+				case 'Line':
+
+					object = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );
+
+					break;
+
+				case 'LineLoop':
+
+					object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );
+
+					break;
+
+				case 'LineSegments':
+
+					object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );
+
+					break;
+
+				case 'PointCloud':
+				case 'Points':
+
+					object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );
+
+					break;
+
+				case 'Sprite':
+
+					object = new Sprite( getMaterial( data.material ) );
+
+					break;
+
+				case 'Group':
+
+					object = new Group();
+
+					break;
+
+				default:
+
+					object = new Object3D();
+
+			}
+
+			object.uuid = data.uuid;
+
+			if ( data.name !== undefined ) object.name = data.name;
+
+			if ( data.matrix !== undefined ) {
+
+				object.matrix.fromArray( data.matrix );
+
+				if ( data.matrixAutoUpdate !== undefined ) object.matrixAutoUpdate = data.matrixAutoUpdate;
+				if ( object.matrixAutoUpdate ) object.matrix.decompose( object.position, object.quaternion, object.scale );
+
+			} else {
+
+				if ( data.position !== undefined ) object.position.fromArray( data.position );
+				if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );
+				if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );
+				if ( data.scale !== undefined ) object.scale.fromArray( data.scale );
+
+			}
+
+			if ( data.castShadow !== undefined ) object.castShadow = data.castShadow;
+			if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;
+
+			if ( data.shadow ) {
+
+				if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;
+				if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;
+				if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );
+				if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );
+
+			}
+
+			if ( data.visible !== undefined ) object.visible = data.visible;
+			if ( data.frustumCulled !== undefined ) object.frustumCulled = data.frustumCulled;
+			if ( data.renderOrder !== undefined ) object.renderOrder = data.renderOrder;
+			if ( data.userData !== undefined ) object.userData = data.userData;
+			if ( data.layers !== undefined ) object.layers.mask = data.layers;
+
+			if ( data.children !== undefined ) {
+
+				var children = data.children;
+
+				for ( var i = 0; i < children.length; i ++ ) {
+
+					object.add( this.parseObject( children[ i ], geometries, materials ) );
+
+				}
+
+			}
+
+			if ( data.type === 'LOD' ) {
+
+				var levels = data.levels;
+
+				for ( var l = 0; l < levels.length; l ++ ) {
+
+					var level = levels[ l ];
+					var child = object.getObjectByProperty( 'uuid', level.object );
+
+					if ( child !== undefined ) {
+
+						object.addLevel( child, level.distance );
+
+					}
+
+				}
+
+			}
+
+			return object;
+
+		}
+
+	} );
+
+	var TEXTURE_MAPPING = {
+		UVMapping: UVMapping,
+		CubeReflectionMapping: CubeReflectionMapping,
+		CubeRefractionMapping: CubeRefractionMapping,
+		EquirectangularReflectionMapping: EquirectangularReflectionMapping,
+		EquirectangularRefractionMapping: EquirectangularRefractionMapping,
+		SphericalReflectionMapping: SphericalReflectionMapping,
+		CubeUVReflectionMapping: CubeUVReflectionMapping,
+		CubeUVRefractionMapping: CubeUVRefractionMapping
+	};
+
+	var TEXTURE_WRAPPING = {
+		RepeatWrapping: RepeatWrapping,
+		ClampToEdgeWrapping: ClampToEdgeWrapping,
+		MirroredRepeatWrapping: MirroredRepeatWrapping
+	};
+
+	var TEXTURE_FILTER = {
+		NearestFilter: NearestFilter,
+		NearestMipMapNearestFilter: NearestMipMapNearestFilter,
+		NearestMipMapLinearFilter: NearestMipMapLinearFilter,
+		LinearFilter: LinearFilter,
+		LinearMipMapNearestFilter: LinearMipMapNearestFilter,
+		LinearMipMapLinearFilter: LinearMipMapLinearFilter
+	};
+
+	/**
+	 * @author thespite / http://clicktorelease.com/
+	 */
+
+
+	function ImageBitmapLoader( manager ) {
+
+		if ( typeof createImageBitmap === 'undefined' ) {
+
+			console.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' );
+
+		}
+
+		if ( typeof fetch === 'undefined' ) {
+
+			console.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' );
+
+		}
+
+		this.manager = manager !== undefined ? manager : DefaultLoadingManager;
+		this.options = undefined;
+
+	}
+
+	ImageBitmapLoader.prototype = {
+
+		constructor: ImageBitmapLoader,
+
+		setOptions: function setOptions( options ) {
+
+			this.options = options;
+
+			return this;
+
+		},
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			if ( url === undefined ) url = '';
+
+			if ( this.path !== undefined ) url = this.path + url;
+
+			url = this.manager.resolveURL( url );
+
+			var scope = this;
+
+			var cached = Cache.get( url );
+
+			if ( cached !== undefined ) {
+
+				scope.manager.itemStart( url );
+
+				setTimeout( function () {
+
+					if ( onLoad ) onLoad( cached );
+
+					scope.manager.itemEnd( url );
+
+				}, 0 );
+
+				return cached;
+
+			}
+
+			fetch( url ).then( function ( res ) {
+
+				return res.blob();
+
+			} ).then( function ( blob ) {
+
+				if ( scope.options === undefined ) {
+
+					// Workaround for FireFox. It causes an error if you pass options.
+					return createImageBitmap( blob );
+
+				} else {
+
+					return createImageBitmap( blob, scope.options );
+
+				}
+
+			} ).then( function ( imageBitmap ) {
+
+				Cache.add( url, imageBitmap );
+
+				if ( onLoad ) onLoad( imageBitmap );
+
+				scope.manager.itemEnd( url );
+
+			} ).catch( function ( e ) {
+
+				if ( onError ) onError( e );
+
+				scope.manager.itemError( url );
+				scope.manager.itemEnd( url );
+
+			} );
+
+			scope.manager.itemStart( url );
+
+		},
+
+		setCrossOrigin: function ( /* value */ ) {
+
+			return this;
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	};
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 * minimal class for proxing functions to Path. Replaces old "extractSubpaths()"
+	 **/
+
+	function ShapePath() {
+
+		this.type = 'ShapePath';
+
+		this.color = new Color();
+
+		this.subPaths = [];
+		this.currentPath = null;
+
+	}
+
+	Object.assign( ShapePath.prototype, {
+
+		moveTo: function ( x, y ) {
+
+			this.currentPath = new Path();
+			this.subPaths.push( this.currentPath );
+			this.currentPath.moveTo( x, y );
+
+		},
+
+		lineTo: function ( x, y ) {
+
+			this.currentPath.lineTo( x, y );
+
+		},
+
+		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {
+
+			this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );
+
+		},
+
+		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {
+
+			this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );
+
+		},
+
+		splineThru: function ( pts ) {
+
+			this.currentPath.splineThru( pts );
+
+		},
+
+		toShapes: function ( isCCW, noHoles ) {
+
+			function toShapesNoHoles( inSubpaths ) {
+
+				var shapes = [];
+
+				for ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {
+
+					var tmpPath = inSubpaths[ i ];
+
+					var tmpShape = new Shape();
+					tmpShape.curves = tmpPath.curves;
+
+					shapes.push( tmpShape );
+
+				}
+
+				return shapes;
+
+			}
+
+			function isPointInsidePolygon( inPt, inPolygon ) {
+
+				var polyLen = inPolygon.length;
+
+				// inPt on polygon contour => immediate success    or
+				// toggling of inside/outside at every single! intersection point of an edge
+				//  with the horizontal line through inPt, left of inPt
+				//  not counting lowerY endpoints of edges and whole edges on that line
+				var inside = false;
+				for ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {
+
+					var edgeLowPt = inPolygon[ p ];
+					var edgeHighPt = inPolygon[ q ];
+
+					var edgeDx = edgeHighPt.x - edgeLowPt.x;
+					var edgeDy = edgeHighPt.y - edgeLowPt.y;
+
+					if ( Math.abs( edgeDy ) > Number.EPSILON ) {
+
+						// not parallel
+						if ( edgeDy < 0 ) {
+
+							edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;
+							edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;
+
+						}
+						if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) 		continue;
+
+						if ( inPt.y === edgeLowPt.y ) {
+
+							if ( inPt.x === edgeLowPt.x )		return	true;		// inPt is on contour ?
+							// continue;				// no intersection or edgeLowPt => doesn't count !!!
+
+						} else {
+
+							var perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );
+							if ( perpEdge === 0 )				return	true;		// inPt is on contour ?
+							if ( perpEdge < 0 ) 				continue;
+							inside = ! inside;		// true intersection left of inPt
+
+						}
+
+					} else {
+
+						// parallel or collinear
+						if ( inPt.y !== edgeLowPt.y ) 		continue;			// parallel
+						// edge lies on the same horizontal line as inPt
+						if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||
+							 ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )		return	true;	// inPt: Point on contour !
+						// continue;
+
+					}
+
+				}
+
+				return	inside;
+
+			}
+
+			var isClockWise = ShapeUtils.isClockWise;
+
+			var subPaths = this.subPaths;
+			if ( subPaths.length === 0 ) return [];
+
+			if ( noHoles === true )	return	toShapesNoHoles( subPaths );
+
+
+			var solid, tmpPath, tmpShape, shapes = [];
+
+			if ( subPaths.length === 1 ) {
+
+				tmpPath = subPaths[ 0 ];
+				tmpShape = new Shape();
+				tmpShape.curves = tmpPath.curves;
+				shapes.push( tmpShape );
+				return shapes;
+
+			}
+
+			var holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );
+			holesFirst = isCCW ? ! holesFirst : holesFirst;
+
+			// console.log("Holes first", holesFirst);
+
+			var betterShapeHoles = [];
+			var newShapes = [];
+			var newShapeHoles = [];
+			var mainIdx = 0;
+			var tmpPoints;
+
+			newShapes[ mainIdx ] = undefined;
+			newShapeHoles[ mainIdx ] = [];
+
+			for ( var i = 0, l = subPaths.length; i < l; i ++ ) {
+
+				tmpPath = subPaths[ i ];
+				tmpPoints = tmpPath.getPoints();
+				solid = isClockWise( tmpPoints );
+				solid = isCCW ? ! solid : solid;
+
+				if ( solid ) {
+
+					if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )	mainIdx ++;
+
+					newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };
+					newShapes[ mainIdx ].s.curves = tmpPath.curves;
+
+					if ( holesFirst )	mainIdx ++;
+					newShapeHoles[ mainIdx ] = [];
+
+					//console.log('cw', i);
+
+				} else {
+
+					newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );
+
+					//console.log('ccw', i);
+
+				}
+
+			}
+
+			// only Holes? -> probably all Shapes with wrong orientation
+			if ( ! newShapes[ 0 ] )	return	toShapesNoHoles( subPaths );
+
+
+			if ( newShapes.length > 1 ) {
+
+				var ambiguous = false;
+				var toChange = [];
+
+				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {
+
+					betterShapeHoles[ sIdx ] = [];
+
+				}
+
+				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {
+
+					var sho = newShapeHoles[ sIdx ];
+
+					for ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {
+
+						var ho = sho[ hIdx ];
+						var hole_unassigned = true;
+
+						for ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {
+
+							if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {
+
+								if ( sIdx !== s2Idx )	toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );
+								if ( hole_unassigned ) {
+
+									hole_unassigned = false;
+									betterShapeHoles[ s2Idx ].push( ho );
+
+								} else {
+
+									ambiguous = true;
+
+								}
+
+							}
+
+						}
+						if ( hole_unassigned ) {
+
+							betterShapeHoles[ sIdx ].push( ho );
+
+						}
+
+					}
+
+				}
+				// console.log("ambiguous: ", ambiguous);
+				if ( toChange.length > 0 ) {
+
+					// console.log("to change: ", toChange);
+					if ( ! ambiguous )	newShapeHoles = betterShapeHoles;
+
+				}
+
+			}
+
+			var tmpHoles;
+
+			for ( var i = 0, il = newShapes.length; i < il; i ++ ) {
+
+				tmpShape = newShapes[ i ].s;
+				shapes.push( tmpShape );
+				tmpHoles = newShapeHoles[ i ];
+
+				for ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {
+
+					tmpShape.holes.push( tmpHoles[ j ].h );
+
+				}
+
+			}
+
+			//console.log("shape", shapes);
+
+			return shapes;
+
+		}
+
+	} );
+
+	/**
+	 * @author zz85 / http://www.lab4games.net/zz85/blog
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+
+	function Font( data ) {
+
+		this.type = 'Font';
+
+		this.data = data;
+
+	}
+
+	Object.assign( Font.prototype, {
+
+		isFont: true,
+
+		generateShapes: function ( text, size ) {
+
+			if ( size === undefined ) size = 100;
+
+			var shapes = [];
+			var paths = createPaths( text, size, this.data );
+
+			for ( var p = 0, pl = paths.length; p < pl; p ++ ) {
+
+				Array.prototype.push.apply( shapes, paths[ p ].toShapes() );
+
+			}
+
+			return shapes;
+
+		}
+
+	} );
+
+	function createPaths( text, size, data ) {
+
+		var chars = Array.from ? Array.from( text ) : String( text ).split( '' ); // see #13988
+		var scale = size / data.resolution;
+		var line_height = ( data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness ) * scale;
+
+		var paths = [];
+
+		var offsetX = 0, offsetY = 0;
+
+		for ( var i = 0; i < chars.length; i ++ ) {
+
+			var char = chars[ i ];
+
+			if ( char === '\n' ) {
+
+				offsetX = 0;
+				offsetY -= line_height;
+
+			} else {
+
+				var ret = createPath( char, scale, offsetX, offsetY, data );
+				offsetX += ret.offsetX;
+				paths.push( ret.path );
+
+			}
+
+		}
+
+		return paths;
+
+	}
+
+	function createPath( char, scale, offsetX, offsetY, data ) {
+
+		var glyph = data.glyphs[ char ] || data.glyphs[ '?' ];
+
+		if ( ! glyph ) return;
+
+		var path = new ShapePath();
+
+		var x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2;
+
+		if ( glyph.o ) {
+
+			var outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) );
+
+			for ( var i = 0, l = outline.length; i < l; ) {
+
+				var action = outline[ i ++ ];
+
+				switch ( action ) {
+
+					case 'm': // moveTo
+
+						x = outline[ i ++ ] * scale + offsetX;
+						y = outline[ i ++ ] * scale + offsetY;
+
+						path.moveTo( x, y );
+
+						break;
+
+					case 'l': // lineTo
+
+						x = outline[ i ++ ] * scale + offsetX;
+						y = outline[ i ++ ] * scale + offsetY;
+
+						path.lineTo( x, y );
+
+						break;
+
+					case 'q': // quadraticCurveTo
+
+						cpx = outline[ i ++ ] * scale + offsetX;
+						cpy = outline[ i ++ ] * scale + offsetY;
+						cpx1 = outline[ i ++ ] * scale + offsetX;
+						cpy1 = outline[ i ++ ] * scale + offsetY;
+
+						path.quadraticCurveTo( cpx1, cpy1, cpx, cpy );
+
+						break;
+
+					case 'b': // bezierCurveTo
+
+						cpx = outline[ i ++ ] * scale + offsetX;
+						cpy = outline[ i ++ ] * scale + offsetY;
+						cpx1 = outline[ i ++ ] * scale + offsetX;
+						cpy1 = outline[ i ++ ] * scale + offsetY;
+						cpx2 = outline[ i ++ ] * scale + offsetX;
+						cpy2 = outline[ i ++ ] * scale + offsetY;
+
+						path.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy );
+
+						break;
+
+				}
+
+			}
+
+		}
+
+		return { offsetX: glyph.ha * scale, path: path };
+
+	}
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function FontLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	}
+
+	Object.assign( FontLoader.prototype, {
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var scope = this;
+
+			var loader = new FileLoader( this.manager );
+			loader.setPath( this.path );
+			loader.load( url, function ( text ) {
+
+				var json;
+
+				try {
+
+					json = JSON.parse( text );
+
+				} catch ( e ) {
+
+					console.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' );
+					json = JSON.parse( text.substring( 65, text.length - 2 ) );
+
+				}
+
+				var font = scope.parse( json );
+
+				if ( onLoad ) onLoad( font );
+
+			}, onProgress, onError );
+
+		},
+
+		parse: function ( json ) {
+
+			return new Font( json );
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function Loader() {}
+
+	Loader.Handlers = {
+
+		handlers: [],
+
+		add: function ( regex, loader ) {
+
+			this.handlers.push( regex, loader );
+
+		},
+
+		get: function ( file ) {
+
+			var handlers = this.handlers;
+
+			for ( var i = 0, l = handlers.length; i < l; i += 2 ) {
+
+				var regex = handlers[ i ];
+				var loader = handlers[ i + 1 ];
+
+				if ( regex.test( file ) ) {
+
+					return loader;
+
+				}
+
+			}
+
+			return null;
+
+		}
+
+	};
+
+	Object.assign( Loader.prototype, {
+
+		crossOrigin: 'anonymous',
+
+		onLoadStart: function () {},
+
+		onLoadProgress: function () {},
+
+		onLoadComplete: function () {},
+
+		initMaterials: function ( materials, texturePath, crossOrigin ) {
+
+			var array = [];
+
+			for ( var i = 0; i < materials.length; ++ i ) {
+
+				array[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );
+
+			}
+
+			return array;
+
+		},
+
+		createMaterial: ( function () {
+
+			var BlendingMode = {
+				NoBlending: NoBlending,
+				NormalBlending: NormalBlending,
+				AdditiveBlending: AdditiveBlending,
+				SubtractiveBlending: SubtractiveBlending,
+				MultiplyBlending: MultiplyBlending,
+				CustomBlending: CustomBlending
+			};
+
+			var color = new Color();
+			var textureLoader = new TextureLoader();
+			var materialLoader = new MaterialLoader();
+
+			return function createMaterial( m, texturePath, crossOrigin ) {
+
+				// convert from old material format
+
+				var textures = {};
+
+				function loadTexture( path, repeat, offset, wrap, anisotropy ) {
+
+					var fullPath = texturePath + path;
+					var loader = Loader.Handlers.get( fullPath );
+
+					var texture;
+
+					if ( loader !== null ) {
+
+						texture = loader.load( fullPath );
+
+					} else {
+
+						textureLoader.setCrossOrigin( crossOrigin );
+						texture = textureLoader.load( fullPath );
+
+					}
+
+					if ( repeat !== undefined ) {
+
+						texture.repeat.fromArray( repeat );
+
+						if ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping;
+						if ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping;
+
+					}
+
+					if ( offset !== undefined ) {
+
+						texture.offset.fromArray( offset );
+
+					}
+
+					if ( wrap !== undefined ) {
+
+						if ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping;
+						if ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping;
+
+						if ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping;
+						if ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping;
+
+					}
+
+					if ( anisotropy !== undefined ) {
+
+						texture.anisotropy = anisotropy;
+
+					}
+
+					var uuid = _Math.generateUUID();
+
+					textures[ uuid ] = texture;
+
+					return uuid;
+
+				}
+
+				//
+
+				var json = {
+					uuid: _Math.generateUUID(),
+					type: 'MeshLambertMaterial'
+				};
+
+				for ( var name in m ) {
+
+					var value = m[ name ];
+
+					switch ( name ) {
+
+						case 'DbgColor':
+						case 'DbgIndex':
+						case 'opticalDensity':
+						case 'illumination':
+							break;
+						case 'DbgName':
+							json.name = value;
+							break;
+						case 'blending':
+							json.blending = BlendingMode[ value ];
+							break;
+						case 'colorAmbient':
+						case 'mapAmbient':
+							console.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' );
+							break;
+						case 'colorDiffuse':
+							json.color = color.fromArray( value ).getHex();
+							break;
+						case 'colorSpecular':
+							json.specular = color.fromArray( value ).getHex();
+							break;
+						case 'colorEmissive':
+							json.emissive = color.fromArray( value ).getHex();
+							break;
+						case 'specularCoef':
+							json.shininess = value;
+							break;
+						case 'shading':
+							if ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';
+							if ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';
+							if ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';
+							break;
+						case 'mapDiffuse':
+							json.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );
+							break;
+						case 'mapDiffuseRepeat':
+						case 'mapDiffuseOffset':
+						case 'mapDiffuseWrap':
+						case 'mapDiffuseAnisotropy':
+							break;
+						case 'mapEmissive':
+							json.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy );
+							break;
+						case 'mapEmissiveRepeat':
+						case 'mapEmissiveOffset':
+						case 'mapEmissiveWrap':
+						case 'mapEmissiveAnisotropy':
+							break;
+						case 'mapLight':
+							json.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );
+							break;
+						case 'mapLightRepeat':
+						case 'mapLightOffset':
+						case 'mapLightWrap':
+						case 'mapLightAnisotropy':
+							break;
+						case 'mapAO':
+							json.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );
+							break;
+						case 'mapAORepeat':
+						case 'mapAOOffset':
+						case 'mapAOWrap':
+						case 'mapAOAnisotropy':
+							break;
+						case 'mapBump':
+							json.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );
+							break;
+						case 'mapBumpScale':
+							json.bumpScale = value;
+							break;
+						case 'mapBumpRepeat':
+						case 'mapBumpOffset':
+						case 'mapBumpWrap':
+						case 'mapBumpAnisotropy':
+							break;
+						case 'mapNormal':
+							json.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );
+							break;
+						case 'mapNormalFactor':
+							json.normalScale = value;
+							break;
+						case 'mapNormalRepeat':
+						case 'mapNormalOffset':
+						case 'mapNormalWrap':
+						case 'mapNormalAnisotropy':
+							break;
+						case 'mapSpecular':
+							json.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );
+							break;
+						case 'mapSpecularRepeat':
+						case 'mapSpecularOffset':
+						case 'mapSpecularWrap':
+						case 'mapSpecularAnisotropy':
+							break;
+						case 'mapMetalness':
+							json.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy );
+							break;
+						case 'mapMetalnessRepeat':
+						case 'mapMetalnessOffset':
+						case 'mapMetalnessWrap':
+						case 'mapMetalnessAnisotropy':
+							break;
+						case 'mapRoughness':
+							json.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy );
+							break;
+						case 'mapRoughnessRepeat':
+						case 'mapRoughnessOffset':
+						case 'mapRoughnessWrap':
+						case 'mapRoughnessAnisotropy':
+							break;
+						case 'mapAlpha':
+							json.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );
+							break;
+						case 'mapAlphaRepeat':
+						case 'mapAlphaOffset':
+						case 'mapAlphaWrap':
+						case 'mapAlphaAnisotropy':
+							break;
+						case 'flipSided':
+							json.side = BackSide;
+							break;
+						case 'doubleSided':
+							json.side = DoubleSide;
+							break;
+						case 'transparency':
+							console.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );
+							json.opacity = value;
+							break;
+						case 'depthTest':
+						case 'depthWrite':
+						case 'colorWrite':
+						case 'opacity':
+						case 'reflectivity':
+						case 'transparent':
+						case 'visible':
+						case 'wireframe':
+							json[ name ] = value;
+							break;
+						case 'vertexColors':
+							if ( value === true ) json.vertexColors = VertexColors;
+							if ( value === 'face' ) json.vertexColors = FaceColors;
+							break;
+						default:
+							console.error( 'THREE.Loader.createMaterial: Unsupported', name, value );
+							break;
+
+					}
+
+				}
+
+				if ( json.type === 'MeshBasicMaterial' ) delete json.emissive;
+				if ( json.type !== 'MeshPhongMaterial' ) delete json.specular;
+
+				if ( json.opacity < 1 ) json.transparent = true;
+
+				materialLoader.setTextures( textures );
+
+				return materialLoader.parse( json );
+
+			};
+
+		} )()
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	var context;
+
+	var AudioContext = {
+
+		getContext: function () {
+
+			if ( context === undefined ) {
+
+				context = new ( window.AudioContext || window.webkitAudioContext )();
+
+			}
+
+			return context;
+
+		},
+
+		setContext: function ( value ) {
+
+			context = value;
+
+		}
+
+	};
+
+	/**
+	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
+	 */
+
+	function AudioLoader( manager ) {
+
+		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	}
+
+	Object.assign( AudioLoader.prototype, {
+
+		load: function ( url, onLoad, onProgress, onError ) {
+
+			var loader = new FileLoader( this.manager );
+			loader.setResponseType( 'arraybuffer' );
+			loader.setPath( this.path );
+			loader.load( url, function ( buffer ) {
+
+				// Create a copy of the buffer. The `decodeAudioData` method
+				// detaches the buffer when complete, preventing reuse.
+				var bufferCopy = buffer.slice( 0 );
+
+				var context = AudioContext.getContext();
+				context.decodeAudioData( bufferCopy, function ( audioBuffer ) {
+
+					onLoad( audioBuffer );
+
+				} );
+
+			}, onProgress, onError );
+
+		},
+
+		setPath: function ( value ) {
+
+			this.path = value;
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author bhouston / http://clara.io
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 * Primary reference:
+	 *   https://graphics.stanford.edu/papers/envmap/envmap.pdf
+	 *
+	 * Secondary reference:
+	 *   https://www.ppsloan.org/publications/StupidSH36.pdf
+	 */
+
+	// 3-band SH defined by 9 coefficients
+
+	function SphericalHarmonics3() {
+
+		this.coefficients = [];
+
+		for ( var i = 0; i < 9; i ++ ) {
+
+			this.coefficients.push( new Vector3() );
+
+		}
+
+	}
+
+	Object.assign( SphericalHarmonics3.prototype, {
+
+		isSphericalHarmonics3: true,
+
+		set: function ( coefficients ) {
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				this.coefficients[ i ].copy( coefficients[ i ] );
+
+			}
+
+			return this;
+
+		},
+
+		zero: function () {
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				this.coefficients[ i ].set( 0, 0, 0 );
+
+			}
+
+			return this;
+
+		},
+
+		// get the radiance in the direction of the normal
+		// target is a Vector3
+		getAt: function ( normal, target ) {
+
+			// normal is assumed to be unit length
+
+			var x = normal.x, y = normal.y, z = normal.z;
+
+			var coeff = this.coefficients;
+
+			// band 0
+			target = coeff[ 0 ] * 0.282095;
+
+			// band 1
+			target += coeff[ 1 ] * 0.488603 * y;
+			target += coeff[ 2 ] * 0.488603 * z;
+			target += coeff[ 3 ] * 0.488603 * x;
+
+			// band 2
+			target += coeff[ 4 ] * 1.092548 * ( x * y );
+			target += coeff[ 5 ] * 1.092548 * ( y * z );
+			target += coeff[ 6 ] * 0.315392 * ( 3.0 * z * z - 1.0 );
+			target += coeff[ 7 ] * 1.092548 * ( x * z );
+			target += coeff[ 8 ] * 0.546274 * ( x * x - y * y );
+
+			return target;
+
+		},
+
+		// get the irradiance (radiance convolved with cosine lobe) in the direction of the normal
+		// target is a Vector3
+		// https://graphics.stanford.edu/papers/envmap/envmap.pdf
+		getIrradianceAt: function ( normal, target ) {
+
+			// normal is assumed to be unit length
+
+			var x = normal.x, y = normal.y, z = normal.z;
+
+			var coeff = this.coefficients;
+
+			// band 0
+			target = coeff[ 0 ] * 0.886227; // π * 0.282095
+
+			// band 1
+			target += coeff[ 1 ] * 2.0 * 0.511664 * y; // ( 2 * π / 3 ) * 0.488603
+			target += coeff[ 2 ] * 2.0 * 0.511664 * z;
+			target += coeff[ 3 ] * 2.0 * 0.511664 * x;
+
+			// band 2
+			target += coeff[ 4 ] * 2.0 * 0.429043 * x * y; // ( π / 4 ) * 1.092548
+			target += coeff[ 5 ] * 2.0 * 0.429043 * y * z;
+			target += coeff[ 6 ] * ( 0.743125 * z * z - 0.247708 ); // ( π / 4 ) * 0.315392 * 3
+			target += coeff[ 7 ] * 2.0 * 0.429043 * x * z;
+			target += coeff[ 8 ] * 0.429043 * ( x * x - y * y ); // ( π / 4 ) * 0.546274
+
+			return target;
+
+		},
+
+		add: function ( sh ) {
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				this.coefficients[ i ].add( sh.coefficients[ i ] );
+
+			}
+
+			return this;
+
+		},
+
+
+		scale: function ( s ) {
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				this.coefficients[ i ].multiplyScalar( s );
+
+			}
+
+			return this;
+
+		},
+
+		lerp: function ( sh, alpha ) {
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				this.coefficients[ i ].lerp( sh.coefficients[ i ], alpha );
+
+			}
+
+			return this;
+
+		},
+
+		equals: function ( sh ) {
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				if ( ! this.coefficients[ i ].equals( sh.coefficients[ i ] ) ) {
+
+					return false;
+
+				}
+
+			}
+
+			return true;
+
+		},
+
+		copy: function ( sh ) {
+
+			return this.set( sh.coefficients );
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		fromArray: function ( array ) {
+
+			var coefficients = this.coefficients;
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				coefficients[ i ].fromArray( array, i * 3 );
+
+			}
+
+			return this;
+
+		},
+
+		toArray: function () {
+
+			var array = [];
+			var coefficients = this.coefficients;
+
+			for ( var i = 0; i < 9; i ++ ) {
+
+				coefficients[ i ].toArray( array, i * 3 );
+
+			}
+
+			return array;
+
+		}
+
+	} );
+
+	Object.assign( SphericalHarmonics3, {
+
+		// evaluate the basis functions
+		// shBasis is an Array[ 9 ]
+		getBasisAt: function ( normal, shBasis ) {
+
+			// normal is assumed to be unit length
+
+			var x = normal.x, y = normal.y, z = normal.z;
+
+			// band 0
+			shBasis[ 0 ] = 0.282095;
+
+			// band 1
+			shBasis[ 1 ] = 0.488603 * y;
+			shBasis[ 2 ] = 0.488603 * z;
+			shBasis[ 3 ] = 0.488603 * x;
+
+			// band 2
+			shBasis[ 4 ] = 1.092548 * x * y;
+			shBasis[ 5 ] = 1.092548 * y * z;
+			shBasis[ 6 ] = 0.315392 * ( 3 * z * z - 1 );
+			shBasis[ 7 ] = 1.092548 * x * z;
+			shBasis[ 8 ] = 0.546274 * ( x * x - y * y );
+
+		}
+
+	} );
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 * A LightProbe is a source of indirect-diffuse light
+	 */
+
+	function LightProbe( sh, intensity ) {
+
+		Light.call( this, undefined, intensity );
+
+		this.sh = ( sh !== undefined ) ? sh : new SphericalHarmonics3();
+
+	}
+
+	LightProbe.prototype = Object.assign( Object.create( Light.prototype ), {
+
+		constructor: LightProbe,
+
+		isLightProbe: true,
+
+		copy: function ( source ) {
+
+			Light.prototype.copy.call( this, source );
+
+			this.sh.copy( source.sh );
+			this.intensity = source.intensity;
+
+			return this;
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var data = Light.prototype.toJSON.call( this, meta );
+
+			// data.sh = this.sh.toArray(); // todo
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function HemisphereLightProbe( skyColor, groundColor, intensity ) {
+
+		LightProbe.call( this, undefined, intensity );
+
+		var color1 = new Color().set( skyColor );
+		var color2 = new Color().set( groundColor );
+
+		var sky = new Vector3( color1.r, color1.g, color1.b );
+		var ground = new Vector3( color2.r, color2.g, color2.b );
+
+		// without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI );
+		var c0 = Math.sqrt( Math.PI );
+		var c1 = c0 * Math.sqrt( 0.75 );
+
+		this.sh.coefficients[ 0 ].copy( sky ).add( ground ).multiplyScalar( c0 );
+		this.sh.coefficients[ 1 ].copy( sky ).sub( ground ).multiplyScalar( c1 );
+
+	}
+
+	HemisphereLightProbe.prototype = Object.assign( Object.create( LightProbe.prototype ), {
+
+		constructor: HemisphereLightProbe,
+
+		isHemisphereLightProbe: true,
+
+		copy: function ( source ) { // modifying colors not currently supported
+
+			LightProbe.prototype.copy.call( this, source );
+
+			return this;
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var data = LightProbe.prototype.toJSON.call( this, meta );
+
+			// data.sh = this.sh.toArray(); // todo
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function AmbientLightProbe( color, intensity ) {
+
+		LightProbe.call( this, undefined, intensity );
+
+		var color1 = new Color().set( color );
+
+		// without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI );
+		this.sh.coefficients[ 0 ].set( color1.r, color1.g, color1.b ).multiplyScalar( 2 * Math.sqrt( Math.PI ) );
+
+	}
+
+	AmbientLightProbe.prototype = Object.assign( Object.create( LightProbe.prototype ), {
+
+		constructor: AmbientLightProbe,
+
+		isAmbientLightProbe: true,
+
+		copy: function ( source ) { // modifying color not currently supported
+
+			LightProbe.prototype.copy.call( this, source );
+
+			return this;
+
+		},
+
+		toJSON: function ( meta ) {
+
+			var data = LightProbe.prototype.toJSON.call( this, meta );
+
+			// data.sh = this.sh.toArray(); // todo
+
+			return data;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function StereoCamera() {
+
+		this.type = 'StereoCamera';
+
+		this.aspect = 1;
+
+		this.eyeSep = 0.064;
+
+		this.cameraL = new PerspectiveCamera();
+		this.cameraL.layers.enable( 1 );
+		this.cameraL.matrixAutoUpdate = false;
+
+		this.cameraR = new PerspectiveCamera();
+		this.cameraR.layers.enable( 2 );
+		this.cameraR.matrixAutoUpdate = false;
+
+	}
+
+	Object.assign( StereoCamera.prototype, {
+
+		update: ( function () {
+
+			var instance, focus, fov, aspect, near, far, zoom, eyeSep;
+
+			var eyeRight = new Matrix4();
+			var eyeLeft = new Matrix4();
+
+			return function update( camera ) {
+
+				var needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov ||
+													aspect !== camera.aspect * this.aspect || near !== camera.near ||
+													far !== camera.far || zoom !== camera.zoom || eyeSep !== this.eyeSep;
+
+				if ( needsUpdate ) {
+
+					instance = this;
+					focus = camera.focus;
+					fov = camera.fov;
+					aspect = camera.aspect * this.aspect;
+					near = camera.near;
+					far = camera.far;
+					zoom = camera.zoom;
+
+					// Off-axis stereoscopic effect based on
+					// http://paulbourke.net/stereographics/stereorender/
+
+					var projectionMatrix = camera.projectionMatrix.clone();
+					eyeSep = this.eyeSep / 2;
+					var eyeSepOnProjection = eyeSep * near / focus;
+					var ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom;
+					var xmin, xmax;
+
+					// translate xOffset
+
+					eyeLeft.elements[ 12 ] = - eyeSep;
+					eyeRight.elements[ 12 ] = eyeSep;
+
+					// for left eye
+
+					xmin = - ymax * aspect + eyeSepOnProjection;
+					xmax = ymax * aspect + eyeSepOnProjection;
+
+					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
+					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );
+
+					this.cameraL.projectionMatrix.copy( projectionMatrix );
+
+					// for right eye
+
+					xmin = - ymax * aspect - eyeSepOnProjection;
+					xmax = ymax * aspect - eyeSepOnProjection;
+
+					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
+					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );
+
+					this.cameraR.projectionMatrix.copy( projectionMatrix );
+
+				}
+
+				this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft );
+				this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight );
+
+			};
+
+		} )()
+
+	} );
+
+	/**
+	 * Camera for rendering cube maps
+	 *	- renders scene into axis-aligned cube
+	 *
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	var fov = 90, aspect = 1;
+
+	function CubeCamera( near, far, cubeResolution, options ) {
+
+		Object3D.call( this );
+
+		this.type = 'CubeCamera';
+
+		var cameraPX = new PerspectiveCamera( fov, aspect, near, far );
+		cameraPX.up.set( 0, - 1, 0 );
+		cameraPX.lookAt( new Vector3( 1, 0, 0 ) );
+		this.add( cameraPX );
+
+		var cameraNX = new PerspectiveCamera( fov, aspect, near, far );
+		cameraNX.up.set( 0, - 1, 0 );
+		cameraNX.lookAt( new Vector3( - 1, 0, 0 ) );
+		this.add( cameraNX );
+
+		var cameraPY = new PerspectiveCamera( fov, aspect, near, far );
+		cameraPY.up.set( 0, 0, 1 );
+		cameraPY.lookAt( new Vector3( 0, 1, 0 ) );
+		this.add( cameraPY );
+
+		var cameraNY = new PerspectiveCamera( fov, aspect, near, far );
+		cameraNY.up.set( 0, 0, - 1 );
+		cameraNY.lookAt( new Vector3( 0, - 1, 0 ) );
+		this.add( cameraNY );
+
+		var cameraPZ = new PerspectiveCamera( fov, aspect, near, far );
+		cameraPZ.up.set( 0, - 1, 0 );
+		cameraPZ.lookAt( new Vector3( 0, 0, 1 ) );
+		this.add( cameraPZ );
+
+		var cameraNZ = new PerspectiveCamera( fov, aspect, near, far );
+		cameraNZ.up.set( 0, - 1, 0 );
+		cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );
+		this.add( cameraNZ );
+
+		options = options || { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter };
+
+		this.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options );
+		this.renderTarget.texture.name = "CubeCamera";
+
+		this.update = function ( renderer, scene ) {
+
+			if ( this.parent === null ) this.updateMatrixWorld();
+
+			var currentRenderTarget = renderer.getRenderTarget();
+
+			var renderTarget = this.renderTarget;
+			var generateMipmaps = renderTarget.texture.generateMipmaps;
+
+			renderTarget.texture.generateMipmaps = false;
+
+			renderer.setRenderTarget( renderTarget, 0 );
+			renderer.render( scene, cameraPX );
+
+			renderer.setRenderTarget( renderTarget, 1 );
+			renderer.render( scene, cameraNX );
+
+			renderer.setRenderTarget( renderTarget, 2 );
+			renderer.render( scene, cameraPY );
+
+			renderer.setRenderTarget( renderTarget, 3 );
+			renderer.render( scene, cameraNY );
+
+			renderer.setRenderTarget( renderTarget, 4 );
+			renderer.render( scene, cameraPZ );
+
+			renderTarget.texture.generateMipmaps = generateMipmaps;
+
+			renderer.setRenderTarget( renderTarget, 5 );
+			renderer.render( scene, cameraNZ );
+
+			renderer.setRenderTarget( currentRenderTarget );
+
+		};
+
+		this.clear = function ( renderer, color, depth, stencil ) {
+
+			var currentRenderTarget = renderer.getRenderTarget();
+
+			var renderTarget = this.renderTarget;
+
+			for ( var i = 0; i < 6; i ++ ) {
+
+				renderer.setRenderTarget( renderTarget, i );
+
+				renderer.clear( color, depth, stencil );
+
+			}
+
+			renderer.setRenderTarget( currentRenderTarget );
+
+		};
+
+	}
+
+	CubeCamera.prototype = Object.create( Object3D.prototype );
+	CubeCamera.prototype.constructor = CubeCamera;
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function Clock( autoStart ) {
+
+		this.autoStart = ( autoStart !== undefined ) ? autoStart : true;
+
+		this.startTime = 0;
+		this.oldTime = 0;
+		this.elapsedTime = 0;
+
+		this.running = false;
+
+	}
+
+	Object.assign( Clock.prototype, {
+
+		start: function () {
+
+			this.startTime = ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732
+
+			this.oldTime = this.startTime;
+			this.elapsedTime = 0;
+			this.running = true;
+
+		},
+
+		stop: function () {
+
+			this.getElapsedTime();
+			this.running = false;
+			this.autoStart = false;
+
+		},
+
+		getElapsedTime: function () {
+
+			this.getDelta();
+			return this.elapsedTime;
+
+		},
+
+		getDelta: function () {
+
+			var diff = 0;
+
+			if ( this.autoStart && ! this.running ) {
+
+				this.start();
+				return 0;
+
+			}
+
+			if ( this.running ) {
+
+				var newTime = ( typeof performance === 'undefined' ? Date : performance ).now();
+
+				diff = ( newTime - this.oldTime ) / 1000;
+				this.oldTime = newTime;
+
+				this.elapsedTime += diff;
+
+			}
+
+			return diff;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function AudioListener() {
+
+		Object3D.call( this );
+
+		this.type = 'AudioListener';
+
+		this.context = AudioContext.getContext();
+
+		this.gain = this.context.createGain();
+		this.gain.connect( this.context.destination );
+
+		this.filter = null;
+
+		this.timeDelta = 0;
+
+	}
+
+	AudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: AudioListener,
+
+		getInput: function () {
+
+			return this.gain;
+
+		},
+
+		removeFilter: function ( ) {
+
+			if ( this.filter !== null ) {
+
+				this.gain.disconnect( this.filter );
+				this.filter.disconnect( this.context.destination );
+				this.gain.connect( this.context.destination );
+				this.filter = null;
+
+			}
+
+			return this;
+
+		},
+
+		getFilter: function () {
+
+			return this.filter;
+
+		},
+
+		setFilter: function ( value ) {
+
+			if ( this.filter !== null ) {
+
+				this.gain.disconnect( this.filter );
+				this.filter.disconnect( this.context.destination );
+
+			} else {
+
+				this.gain.disconnect( this.context.destination );
+
+			}
+
+			this.filter = value;
+			this.gain.connect( this.filter );
+			this.filter.connect( this.context.destination );
+
+			return this;
+
+		},
+
+		getMasterVolume: function () {
+
+			return this.gain.gain.value;
+
+		},
+
+		setMasterVolume: function ( value ) {
+
+			this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );
+
+			return this;
+
+		},
+
+		updateMatrixWorld: ( function () {
+
+			var position = new Vector3();
+			var quaternion = new Quaternion();
+			var scale = new Vector3();
+
+			var orientation = new Vector3();
+			var clock = new Clock();
+
+			return function updateMatrixWorld( force ) {
+
+				Object3D.prototype.updateMatrixWorld.call( this, force );
+
+				var listener = this.context.listener;
+				var up = this.up;
+
+				this.timeDelta = clock.getDelta();
+
+				this.matrixWorld.decompose( position, quaternion, scale );
+
+				orientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );
+
+				if ( listener.positionX ) {
+
+					// code path for Chrome (see #14393)
+
+					var endTime = this.context.currentTime + this.timeDelta;
+
+					listener.positionX.linearRampToValueAtTime( position.x, endTime );
+					listener.positionY.linearRampToValueAtTime( position.y, endTime );
+					listener.positionZ.linearRampToValueAtTime( position.z, endTime );
+					listener.forwardX.linearRampToValueAtTime( orientation.x, endTime );
+					listener.forwardY.linearRampToValueAtTime( orientation.y, endTime );
+					listener.forwardZ.linearRampToValueAtTime( orientation.z, endTime );
+					listener.upX.linearRampToValueAtTime( up.x, endTime );
+					listener.upY.linearRampToValueAtTime( up.y, endTime );
+					listener.upZ.linearRampToValueAtTime( up.z, endTime );
+
+				} else {
+
+					listener.setPosition( position.x, position.y, position.z );
+					listener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );
+
+				}
+
+			};
+
+		} )()
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
+	 */
+
+	function Audio( listener ) {
+
+		Object3D.call( this );
+
+		this.type = 'Audio';
+
+		this.listener = listener;
+		this.context = listener.context;
+
+		this.gain = this.context.createGain();
+		this.gain.connect( listener.getInput() );
+
+		this.autoplay = false;
+
+		this.buffer = null;
+		this.detune = 0;
+		this.loop = false;
+		this.startTime = 0;
+		this.offset = 0;
+		this.playbackRate = 1;
+		this.isPlaying = false;
+		this.hasPlaybackControl = true;
+		this.sourceType = 'empty';
+
+		this.filters = [];
+
+	}
+
+	Audio.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+		constructor: Audio,
+
+		getOutput: function () {
+
+			return this.gain;
+
+		},
+
+		setNodeSource: function ( audioNode ) {
+
+			this.hasPlaybackControl = false;
+			this.sourceType = 'audioNode';
+			this.source = audioNode;
+			this.connect();
+
+			return this;
+
+		},
+
+		setMediaElementSource: function ( mediaElement ) {
+
+			this.hasPlaybackControl = false;
+			this.sourceType = 'mediaNode';
+			this.source = this.context.createMediaElementSource( mediaElement );
+			this.connect();
+
+			return this;
+
+		},
+
+		setBuffer: function ( audioBuffer ) {
+
+			this.buffer = audioBuffer;
+			this.sourceType = 'buffer';
+
+			if ( this.autoplay ) this.play();
+
+			return this;
+
+		},
+
+		play: function () {
+
+			if ( this.isPlaying === true ) {
+
+				console.warn( 'THREE.Audio: Audio is already playing.' );
+				return;
+
+			}
+
+			if ( this.hasPlaybackControl === false ) {
+
+				console.warn( 'THREE.Audio: this Audio has no playback control.' );
+				return;
+
+			}
+
+			var source = this.context.createBufferSource();
+
+			source.buffer = this.buffer;
+			source.loop = this.loop;
+			source.onended = this.onEnded.bind( this );
+			this.startTime = this.context.currentTime;
+			source.start( this.startTime, this.offset );
+
+			this.isPlaying = true;
+
+			this.source = source;
+
+			this.setDetune( this.detune );
+			this.setPlaybackRate( this.playbackRate );
+
+			return this.connect();
+
+		},
+
+		pause: function () {
+
+			if ( this.hasPlaybackControl === false ) {
+
+				console.warn( 'THREE.Audio: this Audio has no playback control.' );
+				return;
+
+			}
+
+			if ( this.isPlaying === true ) {
+
+				this.source.stop();
+				this.source.onended = null;
+				this.offset += ( this.context.currentTime - this.startTime ) * this.playbackRate;
+				this.isPlaying = false;
+
+			}
+
+			return this;
+
+		},
+
+		stop: function () {
+
+			if ( this.hasPlaybackControl === false ) {
+
+				console.warn( 'THREE.Audio: this Audio has no playback control.' );
+				return;
+
+			}
+
+			this.source.stop();
+			this.source.onended = null;
+			this.offset = 0;
+			this.isPlaying = false;
+
+			return this;
+
+		},
+
+		connect: function () {
+
+			if ( this.filters.length > 0 ) {
+
+				this.source.connect( this.filters[ 0 ] );
+
+				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {
+
+					this.filters[ i - 1 ].connect( this.filters[ i ] );
+
+				}
+
+				this.filters[ this.filters.length - 1 ].connect( this.getOutput() );
+
+			} else {
+
+				this.source.connect( this.getOutput() );
+
+			}
+
+			return this;
+
+		},
+
+		disconnect: function () {
+
+			if ( this.filters.length > 0 ) {
+
+				this.source.disconnect( this.filters[ 0 ] );
+
+				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {
+
+					this.filters[ i - 1 ].disconnect( this.filters[ i ] );
+
+				}
+
+				this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );
+
+			} else {
+
+				this.source.disconnect( this.getOutput() );
+
+			}
+
+			return this;
+
+		},
+
+		getFilters: function () {
+
+			return this.filters;
+
+		},
+
+		setFilters: function ( value ) {
+
+			if ( ! value ) value = [];
+
+			if ( this.isPlaying === true ) {
+
+				this.disconnect();
+				this.filters = value;
+				this.connect();
+
+			} else {
+
+				this.filters = value;
+
+			}
+
+			return this;
+
+		},
+
+		setDetune: function ( value ) {
+
+			this.detune = value;
+
+			if ( this.source.detune === undefined ) return; // only set detune when available
+
+			if ( this.isPlaying === true ) {
+
+				this.source.detune.setTargetAtTime( this.detune, this.context.currentTime, 0.01 );
+
+			}
+
+			return this;
+
+		},
+
+		getDetune: function () {
+
+			return this.detune;
+
+		},
+
+		getFilter: function () {
+
+			return this.getFilters()[ 0 ];
+
+		},
+
+		setFilter: function ( filter ) {
+
+			return this.setFilters( filter ? [ filter ] : [] );
+
+		},
+
+		setPlaybackRate: function ( value ) {
+
+			if ( this.hasPlaybackControl === false ) {
+
+				console.warn( 'THREE.Audio: this Audio has no playback control.' );
+				return;
+
+			}
+
+			this.playbackRate = value;
+
+			if ( this.isPlaying === true ) {
+
+				this.source.playbackRate.setTargetAtTime( this.playbackRate, this.context.currentTime, 0.01 );
+
+			}
+
+			return this;
+
+		},
+
+		getPlaybackRate: function () {
+
+			return this.playbackRate;
+
+		},
+
+		onEnded: function () {
+
+			this.isPlaying = false;
+
+		},
+
+		getLoop: function () {
+
+			if ( this.hasPlaybackControl === false ) {
+
+				console.warn( 'THREE.Audio: this Audio has no playback control.' );
+				return false;
+
+			}
+
+			return this.loop;
+
+		},
+
+		setLoop: function ( value ) {
+
+			if ( this.hasPlaybackControl === false ) {
+
+				console.warn( 'THREE.Audio: this Audio has no playback control.' );
+				return;
+
+			}
+
+			this.loop = value;
+
+			if ( this.isPlaying === true ) {
+
+				this.source.loop = this.loop;
+
+			}
+
+			return this;
+
+		},
+
+		getVolume: function () {
+
+			return this.gain.gain.value;
+
+		},
+
+		setVolume: function ( value ) {
+
+			this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function PositionalAudio( listener ) {
+
+		Audio.call( this, listener );
+
+		this.panner = this.context.createPanner();
+		this.panner.panningModel = 'HRTF';
+		this.panner.connect( this.gain );
+
+	}
+
+	PositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {
+
+		constructor: PositionalAudio,
+
+		getOutput: function () {
+
+			return this.panner;
+
+		},
+
+		getRefDistance: function () {
+
+			return this.panner.refDistance;
+
+		},
+
+		setRefDistance: function ( value ) {
+
+			this.panner.refDistance = value;
+
+			return this;
+
+		},
+
+		getRolloffFactor: function () {
+
+			return this.panner.rolloffFactor;
+
+		},
+
+		setRolloffFactor: function ( value ) {
+
+			this.panner.rolloffFactor = value;
+
+			return this;
+
+		},
+
+		getDistanceModel: function () {
+
+			return this.panner.distanceModel;
+
+		},
+
+		setDistanceModel: function ( value ) {
+
+			this.panner.distanceModel = value;
+
+			return this;
+
+		},
+
+		getMaxDistance: function () {
+
+			return this.panner.maxDistance;
+
+		},
+
+		setMaxDistance: function ( value ) {
+
+			this.panner.maxDistance = value;
+
+			return this;
+
+		},
+
+		setDirectionalCone: function ( coneInnerAngle, coneOuterAngle, coneOuterGain ) {
+
+			this.panner.coneInnerAngle = coneInnerAngle;
+			this.panner.coneOuterAngle = coneOuterAngle;
+			this.panner.coneOuterGain = coneOuterGain;
+
+			return this;
+
+		},
+
+		updateMatrixWorld: ( function () {
+
+			var position = new Vector3();
+			var quaternion = new Quaternion();
+			var scale = new Vector3();
+
+			var orientation = new Vector3();
+
+			return function updateMatrixWorld( force ) {
+
+				Object3D.prototype.updateMatrixWorld.call( this, force );
+
+				if ( this.hasPlaybackControl === true && this.isPlaying === false ) return;
+
+				this.matrixWorld.decompose( position, quaternion, scale );
+
+				orientation.set( 0, 0, 1 ).applyQuaternion( quaternion );
+
+				var panner = this.panner;
+
+				if ( panner.positionX ) {
+
+					// code path for Chrome and Firefox (see #14393)
+
+					var endTime = this.context.currentTime + this.listener.timeDelta;
+
+					panner.positionX.linearRampToValueAtTime( position.x, endTime );
+					panner.positionY.linearRampToValueAtTime( position.y, endTime );
+					panner.positionZ.linearRampToValueAtTime( position.z, endTime );
+					panner.orientationX.linearRampToValueAtTime( orientation.x, endTime );
+					panner.orientationY.linearRampToValueAtTime( orientation.y, endTime );
+					panner.orientationZ.linearRampToValueAtTime( orientation.z, endTime );
+
+				} else {
+
+					panner.setPosition( position.x, position.y, position.z );
+					panner.setOrientation( orientation.x, orientation.y, orientation.z );
+
+				}
+
+			};
+
+		} )()
+
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function AudioAnalyser( audio, fftSize ) {
+
+		this.analyser = audio.context.createAnalyser();
+		this.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;
+
+		this.data = new Uint8Array( this.analyser.frequencyBinCount );
+
+		audio.getOutput().connect( this.analyser );
+
+	}
+
+	Object.assign( AudioAnalyser.prototype, {
+
+		getFrequencyData: function () {
+
+			this.analyser.getByteFrequencyData( this.data );
+
+			return this.data;
+
+		},
+
+		getAverageFrequency: function () {
+
+			var value = 0, data = this.getFrequencyData();
+
+			for ( var i = 0; i < data.length; i ++ ) {
+
+				value += data[ i ];
+
+			}
+
+			return value / data.length;
+
+		}
+
+	} );
+
+	/**
+	 *
+	 * Buffered scene graph property that allows weighted accumulation.
+	 *
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	function PropertyMixer( binding, typeName, valueSize ) {
+
+		this.binding = binding;
+		this.valueSize = valueSize;
+
+		var bufferType = Float64Array,
+			mixFunction;
+
+		switch ( typeName ) {
+
+			case 'quaternion':
+				mixFunction = this._slerp;
+				break;
+
+			case 'string':
+			case 'bool':
+				bufferType = Array;
+				mixFunction = this._select;
+				break;
+
+			default:
+				mixFunction = this._lerp;
+
+		}
+
+		this.buffer = new bufferType( valueSize * 4 );
+		// layout: [ incoming | accu0 | accu1 | orig ]
+		//
+		// interpolators can use .buffer as their .result
+		// the data then goes to 'incoming'
+		//
+		// 'accu0' and 'accu1' are used frame-interleaved for
+		// the cumulative result and are compared to detect
+		// changes
+		//
+		// 'orig' stores the original state of the property
+
+		this._mixBufferRegion = mixFunction;
+
+		this.cumulativeWeight = 0;
+
+		this.useCount = 0;
+		this.referenceCount = 0;
+
+	}
+
+	Object.assign( PropertyMixer.prototype, {
+
+		// accumulate data in the 'incoming' region into 'accu<i>'
+		accumulate: function ( accuIndex, weight ) {
+
+			// note: happily accumulating nothing when weight = 0, the caller knows
+			// the weight and shouldn't have made the call in the first place
+
+			var buffer = this.buffer,
+				stride = this.valueSize,
+				offset = accuIndex * stride + stride,
+
+				currentWeight = this.cumulativeWeight;
+
+			if ( currentWeight === 0 ) {
+
+				// accuN := incoming * weight
+
+				for ( var i = 0; i !== stride; ++ i ) {
+
+					buffer[ offset + i ] = buffer[ i ];
+
+				}
+
+				currentWeight = weight;
+
+			} else {
+
+				// accuN := accuN + incoming * weight
+
+				currentWeight += weight;
+				var mix = weight / currentWeight;
+				this._mixBufferRegion( buffer, offset, 0, mix, stride );
+
+			}
+
+			this.cumulativeWeight = currentWeight;
+
+		},
+
+		// apply the state of 'accu<i>' to the binding when accus differ
+		apply: function ( accuIndex ) {
+
+			var stride = this.valueSize,
+				buffer = this.buffer,
+				offset = accuIndex * stride + stride,
+
+				weight = this.cumulativeWeight,
+
+				binding = this.binding;
+
+			this.cumulativeWeight = 0;
+
+			if ( weight < 1 ) {
+
+				// accuN := accuN + original * ( 1 - cumulativeWeight )
+
+				var originalValueOffset = stride * 3;
+
+				this._mixBufferRegion(
+					buffer, offset, originalValueOffset, 1 - weight, stride );
+
+			}
+
+			for ( var i = stride, e = stride + stride; i !== e; ++ i ) {
+
+				if ( buffer[ i ] !== buffer[ i + stride ] ) {
+
+					// value has changed -> update scene graph
+
+					binding.setValue( buffer, offset );
+					break;
+
+				}
+
+			}
+
+		},
+
+		// remember the state of the bound property and copy it to both accus
+		saveOriginalState: function () {
+
+			var binding = this.binding;
+
+			var buffer = this.buffer,
+				stride = this.valueSize,
+
+				originalValueOffset = stride * 3;
+
+			binding.getValue( buffer, originalValueOffset );
+
+			// accu[0..1] := orig -- initially detect changes against the original
+			for ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {
+
+				buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];
+
+			}
+
+			this.cumulativeWeight = 0;
+
+		},
+
+		// apply the state previously taken via 'saveOriginalState' to the binding
+		restoreOriginalState: function () {
+
+			var originalValueOffset = this.valueSize * 3;
+			this.binding.setValue( this.buffer, originalValueOffset );
+
+		},
+
+
+		// mix functions
+
+		_select: function ( buffer, dstOffset, srcOffset, t, stride ) {
+
+			if ( t >= 0.5 ) {
+
+				for ( var i = 0; i !== stride; ++ i ) {
+
+					buffer[ dstOffset + i ] = buffer[ srcOffset + i ];
+
+				}
+
+			}
+
+		},
+
+		_slerp: function ( buffer, dstOffset, srcOffset, t ) {
+
+			Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );
+
+		},
+
+		_lerp: function ( buffer, dstOffset, srcOffset, t, stride ) {
+
+			var s = 1 - t;
+
+			for ( var i = 0; i !== stride; ++ i ) {
+
+				var j = dstOffset + i;
+
+				buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;
+
+			}
+
+		}
+
+	} );
+
+	/**
+	 *
+	 * A reference to a real property in the scene graph.
+	 *
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	// Characters [].:/ are reserved for track binding syntax.
+	var RESERVED_CHARS_RE = '\\[\\]\\.:\\/';
+
+	function Composite( targetGroup, path, optionalParsedPath ) {
+
+		var parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );
+
+		this._targetGroup = targetGroup;
+		this._bindings = targetGroup.subscribe_( path, parsedPath );
+
+	}
+
+	Object.assign( Composite.prototype, {
+
+		getValue: function ( array, offset ) {
+
+			this.bind(); // bind all binding
+
+			var firstValidIndex = this._targetGroup.nCachedObjects_,
+				binding = this._bindings[ firstValidIndex ];
+
+			// and only call .getValue on the first
+			if ( binding !== undefined ) binding.getValue( array, offset );
+
+		},
+
+		setValue: function ( array, offset ) {
+
+			var bindings = this._bindings;
+
+			for ( var i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {
+
+				bindings[ i ].setValue( array, offset );
+
+			}
+
+		},
+
+		bind: function () {
+
+			var bindings = this._bindings;
+
+			for ( var i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {
+
+				bindings[ i ].bind();
+
+			}
+
+		},
+
+		unbind: function () {
+
+			var bindings = this._bindings;
+
+			for ( var i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {
+
+				bindings[ i ].unbind();
+
+			}
+
+		}
+
+	} );
+
+
+	function PropertyBinding( rootNode, path, parsedPath ) {
+
+		this.path = path;
+		this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );
+
+		this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;
+
+		this.rootNode = rootNode;
+
+	}
+
+	Object.assign( PropertyBinding, {
+
+		Composite: Composite,
+
+		create: function ( root, path, parsedPath ) {
+
+			if ( ! ( root && root.isAnimationObjectGroup ) ) {
+
+				return new PropertyBinding( root, path, parsedPath );
+
+			} else {
+
+				return new PropertyBinding.Composite( root, path, parsedPath );
+
+			}
+
+		},
+
+		/**
+		 * Replaces spaces with underscores and removes unsupported characters from
+		 * node names, to ensure compatibility with parseTrackName().
+		 *
+		 * @param {string} name Node name to be sanitized.
+		 * @return {string}
+		 */
+		sanitizeNodeName: ( function () {
+
+			var reservedRe = new RegExp( '[' + RESERVED_CHARS_RE + ']', 'g' );
+
+			return function sanitizeNodeName( name ) {
+
+				return name.replace( /\s/g, '_' ).replace( reservedRe, '' );
+
+			};
+
+		}() ),
+
+		parseTrackName: function () {
+
+			// Attempts to allow node names from any language. ES5's `\w` regexp matches
+			// only latin characters, and the unicode \p{L} is not yet supported. So
+			// instead, we exclude reserved characters and match everything else.
+			var wordChar = '[^' + RESERVED_CHARS_RE + ']';
+			var wordCharOrDot = '[^' + RESERVED_CHARS_RE.replace( '\\.', '' ) + ']';
+
+			// Parent directories, delimited by '/' or ':'. Currently unused, but must
+			// be matched to parse the rest of the track name.
+			var directoryRe = /((?:WC+[\/:])*)/.source.replace( 'WC', wordChar );
+
+			// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
+			var nodeRe = /(WCOD+)?/.source.replace( 'WCOD', wordCharOrDot );
+
+			// Object on target node, and accessor. May not contain reserved
+			// characters. Accessor may contain any character except closing bracket.
+			var objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace( 'WC', wordChar );
+
+			// Property and accessor. May not contain reserved characters. Accessor may
+			// contain any non-bracket characters.
+			var propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace( 'WC', wordChar );
+
+			var trackRe = new RegExp( ''
+				+ '^'
+				+ directoryRe
+				+ nodeRe
+				+ objectRe
+				+ propertyRe
+				+ '$'
+			);
+
+			var supportedObjectNames = [ 'material', 'materials', 'bones' ];
+
+			return function parseTrackName( trackName ) {
+
+				var matches = trackRe.exec( trackName );
+
+				if ( ! matches ) {
+
+					throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );
+
+				}
+
+				var results = {
+					// directoryName: matches[ 1 ], // (tschw) currently unused
+					nodeName: matches[ 2 ],
+					objectName: matches[ 3 ],
+					objectIndex: matches[ 4 ],
+					propertyName: matches[ 5 ], // required
+					propertyIndex: matches[ 6 ]
+				};
+
+				var lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );
+
+				if ( lastDot !== undefined && lastDot !== - 1 ) {
+
+					var objectName = results.nodeName.substring( lastDot + 1 );
+
+					// Object names must be checked against a whitelist. Otherwise, there
+					// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
+					// 'bar' could be the objectName, or part of a nodeName (which can
+					// include '.' characters).
+					if ( supportedObjectNames.indexOf( objectName ) !== - 1 ) {
+
+						results.nodeName = results.nodeName.substring( 0, lastDot );
+						results.objectName = objectName;
+
+					}
+
+				}
+
+				if ( results.propertyName === null || results.propertyName.length === 0 ) {
+
+					throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );
+
+				}
+
+				return results;
+
+			};
+
+		}(),
+
+		findNode: function ( root, nodeName ) {
+
+			if ( ! nodeName || nodeName === "" || nodeName === "root" || nodeName === "." || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {
+
+				return root;
+
+			}
+
+			// search into skeleton bones.
+			if ( root.skeleton ) {
+
+				var bone = root.skeleton.getBoneByName( nodeName );
+
+				if ( bone !== undefined ) {
+
+					return bone;
+
+				}
+
+			}
+
+			// search into node subtree.
+			if ( root.children ) {
+
+				var searchNodeSubtree = function ( children ) {
+
+					for ( var i = 0; i < children.length; i ++ ) {
+
+						var childNode = children[ i ];
+
+						if ( childNode.name === nodeName || childNode.uuid === nodeName ) {
+
+							return childNode;
+
+						}
+
+						var result = searchNodeSubtree( childNode.children );
+
+						if ( result ) return result;
+
+					}
+
+					return null;
+
+				};
+
+				var subTreeNode = searchNodeSubtree( root.children );
+
+				if ( subTreeNode ) {
+
+					return subTreeNode;
+
+				}
+
+			}
+
+			return null;
+
+		}
+
+	} );
+
+	Object.assign( PropertyBinding.prototype, { // prototype, continued
+
+		// these are used to "bind" a nonexistent property
+		_getValue_unavailable: function () {},
+		_setValue_unavailable: function () {},
+
+		BindingType: {
+			Direct: 0,
+			EntireArray: 1,
+			ArrayElement: 2,
+			HasFromToArray: 3
+		},
+
+		Versioning: {
+			None: 0,
+			NeedsUpdate: 1,
+			MatrixWorldNeedsUpdate: 2
+		},
+
+		GetterByBindingType: [
+
+			function getValue_direct( buffer, offset ) {
+
+				buffer[ offset ] = this.node[ this.propertyName ];
+
+			},
+
+			function getValue_array( buffer, offset ) {
+
+				var source = this.resolvedProperty;
+
+				for ( var i = 0, n = source.length; i !== n; ++ i ) {
+
+					buffer[ offset ++ ] = source[ i ];
+
+				}
+
+			},
+
+			function getValue_arrayElement( buffer, offset ) {
+
+				buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];
+
+			},
+
+			function getValue_toArray( buffer, offset ) {
+
+				this.resolvedProperty.toArray( buffer, offset );
+
+			}
+
+		],
+
+		SetterByBindingTypeAndVersioning: [
+
+			[
+				// Direct
+
+				function setValue_direct( buffer, offset ) {
+
+					this.targetObject[ this.propertyName ] = buffer[ offset ];
+
+				},
+
+				function setValue_direct_setNeedsUpdate( buffer, offset ) {
+
+					this.targetObject[ this.propertyName ] = buffer[ offset ];
+					this.targetObject.needsUpdate = true;
+
+				},
+
+				function setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {
+
+					this.targetObject[ this.propertyName ] = buffer[ offset ];
+					this.targetObject.matrixWorldNeedsUpdate = true;
+
+				}
+
+			], [
+
+				// EntireArray
+
+				function setValue_array( buffer, offset ) {
+
+					var dest = this.resolvedProperty;
+
+					for ( var i = 0, n = dest.length; i !== n; ++ i ) {
+
+						dest[ i ] = buffer[ offset ++ ];
+
+					}
+
+				},
+
+				function setValue_array_setNeedsUpdate( buffer, offset ) {
+
+					var dest = this.resolvedProperty;
+
+					for ( var i = 0, n = dest.length; i !== n; ++ i ) {
+
+						dest[ i ] = buffer[ offset ++ ];
+
+					}
+
+					this.targetObject.needsUpdate = true;
+
+				},
+
+				function setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {
+
+					var dest = this.resolvedProperty;
+
+					for ( var i = 0, n = dest.length; i !== n; ++ i ) {
+
+						dest[ i ] = buffer[ offset ++ ];
+
+					}
+
+					this.targetObject.matrixWorldNeedsUpdate = true;
+
+				}
+
+			], [
+
+				// ArrayElement
+
+				function setValue_arrayElement( buffer, offset ) {
+
+					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
+
+				},
+
+				function setValue_arrayElement_setNeedsUpdate( buffer, offset ) {
+
+					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
+					this.targetObject.needsUpdate = true;
+
+				},
+
+				function setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {
+
+					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
+					this.targetObject.matrixWorldNeedsUpdate = true;
+
+				}
+
+			], [
+
+				// HasToFromArray
+
+				function setValue_fromArray( buffer, offset ) {
+
+					this.resolvedProperty.fromArray( buffer, offset );
+
+				},
+
+				function setValue_fromArray_setNeedsUpdate( buffer, offset ) {
+
+					this.resolvedProperty.fromArray( buffer, offset );
+					this.targetObject.needsUpdate = true;
+
+				},
+
+				function setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {
+
+					this.resolvedProperty.fromArray( buffer, offset );
+					this.targetObject.matrixWorldNeedsUpdate = true;
+
+				}
+
+			]
+
+		],
+
+		getValue: function getValue_unbound( targetArray, offset ) {
+
+			this.bind();
+			this.getValue( targetArray, offset );
+
+			// Note: This class uses a State pattern on a per-method basis:
+			// 'bind' sets 'this.getValue' / 'setValue' and shadows the
+			// prototype version of these methods with one that represents
+			// the bound state. When the property is not found, the methods
+			// become no-ops.
+
+		},
+
+		setValue: function getValue_unbound( sourceArray, offset ) {
+
+			this.bind();
+			this.setValue( sourceArray, offset );
+
+		},
+
+		// create getter / setter pair for a property in the scene graph
+		bind: function () {
+
+			var targetObject = this.node,
+				parsedPath = this.parsedPath,
+
+				objectName = parsedPath.objectName,
+				propertyName = parsedPath.propertyName,
+				propertyIndex = parsedPath.propertyIndex;
+
+			if ( ! targetObject ) {
+
+				targetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode;
+
+				this.node = targetObject;
+
+			}
+
+			// set fail state so we can just 'return' on error
+			this.getValue = this._getValue_unavailable;
+			this.setValue = this._setValue_unavailable;
+
+			// ensure there is a value node
+			if ( ! targetObject ) {
+
+				console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' );
+				return;
+
+			}
+
+			if ( objectName ) {
+
+				var objectIndex = parsedPath.objectIndex;
+
+				// special cases were we need to reach deeper into the hierarchy to get the face materials....
+				switch ( objectName ) {
+
+					case 'materials':
+
+						if ( ! targetObject.material ) {
+
+							console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );
+							return;
+
+						}
+
+						if ( ! targetObject.material.materials ) {
+
+							console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );
+							return;
+
+						}
+
+						targetObject = targetObject.material.materials;
+
+						break;
+
+					case 'bones':
+
+						if ( ! targetObject.skeleton ) {
+
+							console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );
+							return;
+
+						}
+
+						// potential future optimization: skip this if propertyIndex is already an integer
+						// and convert the integer string to a true integer.
+
+						targetObject = targetObject.skeleton.bones;
+
+						// support resolving morphTarget names into indices.
+						for ( var i = 0; i < targetObject.length; i ++ ) {
+
+							if ( targetObject[ i ].name === objectIndex ) {
+
+								objectIndex = i;
+								break;
+
+							}
+
+						}
+
+						break;
+
+					default:
+
+						if ( targetObject[ objectName ] === undefined ) {
+
+							console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );
+							return;
+
+						}
+
+						targetObject = targetObject[ objectName ];
+
+				}
+
+
+				if ( objectIndex !== undefined ) {
+
+					if ( targetObject[ objectIndex ] === undefined ) {
+
+						console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );
+						return;
+
+					}
+
+					targetObject = targetObject[ objectIndex ];
+
+				}
+
+			}
+
+			// resolve property
+			var nodeProperty = targetObject[ propertyName ];
+
+			if ( nodeProperty === undefined ) {
+
+				var nodeName = parsedPath.nodeName;
+
+				console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +
+					'.' + propertyName + ' but it wasn\'t found.', targetObject );
+				return;
+
+			}
+
+			// determine versioning scheme
+			var versioning = this.Versioning.None;
+
+			this.targetObject = targetObject;
+
+			if ( targetObject.needsUpdate !== undefined ) { // material
+
+				versioning = this.Versioning.NeedsUpdate;
+
+			} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform
+
+				versioning = this.Versioning.MatrixWorldNeedsUpdate;
+
+			}
+
+			// determine how the property gets bound
+			var bindingType = this.BindingType.Direct;
+
+			if ( propertyIndex !== undefined ) {
+
+				// access a sub element of the property array (only primitives are supported right now)
+
+				if ( propertyName === "morphTargetInfluences" ) {
+
+					// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.
+
+					// support resolving morphTarget names into indices.
+					if ( ! targetObject.geometry ) {
+
+						console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );
+						return;
+
+					}
+
+					if ( targetObject.geometry.isBufferGeometry ) {
+
+						if ( ! targetObject.geometry.morphAttributes ) {
+
+							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );
+							return;
+
+						}
+
+						for ( var i = 0; i < this.node.geometry.morphAttributes.position.length; i ++ ) {
+
+							if ( targetObject.geometry.morphAttributes.position[ i ].name === propertyIndex ) {
+
+								propertyIndex = i;
+								break;
+
+							}
+
+						}
+
+
+					} else {
+
+						if ( ! targetObject.geometry.morphTargets ) {
+
+							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.', this );
+							return;
+
+						}
+
+						for ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {
+
+							if ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) {
+
+								propertyIndex = i;
+								break;
+
+							}
+
+						}
+
+					}
+
+				}
+
+				bindingType = this.BindingType.ArrayElement;
+
+				this.resolvedProperty = nodeProperty;
+				this.propertyIndex = propertyIndex;
+
+			} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {
+
+				// must use copy for Object3D.Euler/Quaternion
+
+				bindingType = this.BindingType.HasFromToArray;
+
+				this.resolvedProperty = nodeProperty;
+
+			} else if ( Array.isArray( nodeProperty ) ) {
+
+				bindingType = this.BindingType.EntireArray;
+
+				this.resolvedProperty = nodeProperty;
+
+			} else {
+
+				this.propertyName = propertyName;
+
+			}
+
+			// select getter / setter
+			this.getValue = this.GetterByBindingType[ bindingType ];
+			this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];
+
+		},
+
+		unbind: function () {
+
+			this.node = null;
+
+			// back to the prototype version of getValue / setValue
+			// note: avoiding to mutate the shape of 'this' via 'delete'
+			this.getValue = this._getValue_unbound;
+			this.setValue = this._setValue_unbound;
+
+		}
+
+	} );
+
+	//!\ DECLARE ALIAS AFTER assign prototype !
+	Object.assign( PropertyBinding.prototype, {
+
+		// initial state of these methods that calls 'bind'
+		_getValue_unbound: PropertyBinding.prototype.getValue,
+		_setValue_unbound: PropertyBinding.prototype.setValue,
+
+	} );
+
+	/**
+	 *
+	 * A group of objects that receives a shared animation state.
+	 *
+	 * Usage:
+	 *
+	 *  - Add objects you would otherwise pass as 'root' to the
+	 *    constructor or the .clipAction method of AnimationMixer.
+	 *
+	 *  - Instead pass this object as 'root'.
+	 *
+	 *  - You can also add and remove objects later when the mixer
+	 *    is running.
+	 *
+	 * Note:
+	 *
+	 *    Objects of this class appear as one object to the mixer,
+	 *    so cache control of the individual objects must be done
+	 *    on the group.
+	 *
+	 * Limitation:
+	 *
+	 *  - The animated properties must be compatible among the
+	 *    all objects in the group.
+	 *
+	 *  - A single property can either be controlled through a
+	 *    target group or directly, but not both.
+	 *
+	 * @author tschw
+	 */
+
+	function AnimationObjectGroup() {
+
+		this.uuid = _Math.generateUUID();
+
+		// cached objects followed by the active ones
+		this._objects = Array.prototype.slice.call( arguments );
+
+		this.nCachedObjects_ = 0; // threshold
+		// note: read by PropertyBinding.Composite
+
+		var indices = {};
+		this._indicesByUUID = indices; // for bookkeeping
+
+		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
+
+			indices[ arguments[ i ].uuid ] = i;
+
+		}
+
+		this._paths = []; // inside: string
+		this._parsedPaths = []; // inside: { we don't care, here }
+		this._bindings = []; // inside: Array< PropertyBinding >
+		this._bindingsIndicesByPath = {}; // inside: indices in these arrays
+
+		var scope = this;
+
+		this.stats = {
+
+			objects: {
+				get total() {
+
+					return scope._objects.length;
+
+				},
+				get inUse() {
+
+					return this.total - scope.nCachedObjects_;
+
+				}
+			},
+			get bindingsPerObject() {
+
+				return scope._bindings.length;
+
+			}
+
+		};
+
+	}
+
+	Object.assign( AnimationObjectGroup.prototype, {
+
+		isAnimationObjectGroup: true,
+
+		add: function () {
+
+			var objects = this._objects,
+				nObjects = objects.length,
+				nCachedObjects = this.nCachedObjects_,
+				indicesByUUID = this._indicesByUUID,
+				paths = this._paths,
+				parsedPaths = this._parsedPaths,
+				bindings = this._bindings,
+				nBindings = bindings.length,
+				knownObject = undefined;
+
+			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
+
+				var object = arguments[ i ],
+					uuid = object.uuid,
+					index = indicesByUUID[ uuid ];
+
+				if ( index === undefined ) {
+
+					// unknown object -> add it to the ACTIVE region
+
+					index = nObjects ++;
+					indicesByUUID[ uuid ] = index;
+					objects.push( object );
+
+					// accounting is done, now do the same for all bindings
+
+					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+						bindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) );
+
+					}
+
+				} else if ( index < nCachedObjects ) {
+
+					knownObject = objects[ index ];
+
+					// move existing object to the ACTIVE region
+
+					var firstActiveIndex = -- nCachedObjects,
+						lastCachedObject = objects[ firstActiveIndex ];
+
+					indicesByUUID[ lastCachedObject.uuid ] = index;
+					objects[ index ] = lastCachedObject;
+
+					indicesByUUID[ uuid ] = firstActiveIndex;
+					objects[ firstActiveIndex ] = object;
+
+					// accounting is done, now do the same for all bindings
+
+					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+						var bindingsForPath = bindings[ j ],
+							lastCached = bindingsForPath[ firstActiveIndex ],
+							binding = bindingsForPath[ index ];
+
+						bindingsForPath[ index ] = lastCached;
+
+						if ( binding === undefined ) {
+
+							// since we do not bother to create new bindings
+							// for objects that are cached, the binding may
+							// or may not exist
+
+							binding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] );
+
+						}
+
+						bindingsForPath[ firstActiveIndex ] = binding;
+
+					}
+
+				} else if ( objects[ index ] !== knownObject ) {
+
+					console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +
+						'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );
+
+				} // else the object is already where we want it to be
+
+			} // for arguments
+
+			this.nCachedObjects_ = nCachedObjects;
+
+		},
+
+		remove: function () {
+
+			var objects = this._objects,
+				nCachedObjects = this.nCachedObjects_,
+				indicesByUUID = this._indicesByUUID,
+				bindings = this._bindings,
+				nBindings = bindings.length;
+
+			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
+
+				var object = arguments[ i ],
+					uuid = object.uuid,
+					index = indicesByUUID[ uuid ];
+
+				if ( index !== undefined && index >= nCachedObjects ) {
+
+					// move existing object into the CACHED region
+
+					var lastCachedIndex = nCachedObjects ++,
+						firstActiveObject = objects[ lastCachedIndex ];
+
+					indicesByUUID[ firstActiveObject.uuid ] = index;
+					objects[ index ] = firstActiveObject;
+
+					indicesByUUID[ uuid ] = lastCachedIndex;
+					objects[ lastCachedIndex ] = object;
+
+					// accounting is done, now do the same for all bindings
+
+					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+						var bindingsForPath = bindings[ j ],
+							firstActive = bindingsForPath[ lastCachedIndex ],
+							binding = bindingsForPath[ index ];
+
+						bindingsForPath[ index ] = firstActive;
+						bindingsForPath[ lastCachedIndex ] = binding;
+
+					}
+
+				}
+
+			} // for arguments
+
+			this.nCachedObjects_ = nCachedObjects;
+
+		},
+
+		// remove & forget
+		uncache: function () {
+
+			var objects = this._objects,
+				nObjects = objects.length,
+				nCachedObjects = this.nCachedObjects_,
+				indicesByUUID = this._indicesByUUID,
+				bindings = this._bindings,
+				nBindings = bindings.length;
+
+			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
+
+				var object = arguments[ i ],
+					uuid = object.uuid,
+					index = indicesByUUID[ uuid ];
+
+				if ( index !== undefined ) {
+
+					delete indicesByUUID[ uuid ];
+
+					if ( index < nCachedObjects ) {
+
+						// object is cached, shrink the CACHED region
+
+						var firstActiveIndex = -- nCachedObjects,
+							lastCachedObject = objects[ firstActiveIndex ],
+							lastIndex = -- nObjects,
+							lastObject = objects[ lastIndex ];
+
+						// last cached object takes this object's place
+						indicesByUUID[ lastCachedObject.uuid ] = index;
+						objects[ index ] = lastCachedObject;
+
+						// last object goes to the activated slot and pop
+						indicesByUUID[ lastObject.uuid ] = firstActiveIndex;
+						objects[ firstActiveIndex ] = lastObject;
+						objects.pop();
+
+						// accounting is done, now do the same for all bindings
+
+						for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+							var bindingsForPath = bindings[ j ],
+								lastCached = bindingsForPath[ firstActiveIndex ],
+								last = bindingsForPath[ lastIndex ];
+
+							bindingsForPath[ index ] = lastCached;
+							bindingsForPath[ firstActiveIndex ] = last;
+							bindingsForPath.pop();
+
+						}
+
+					} else {
+
+						// object is active, just swap with the last and pop
+
+						var lastIndex = -- nObjects,
+							lastObject = objects[ lastIndex ];
+
+						indicesByUUID[ lastObject.uuid ] = index;
+						objects[ index ] = lastObject;
+						objects.pop();
+
+						// accounting is done, now do the same for all bindings
+
+						for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+							var bindingsForPath = bindings[ j ];
+
+							bindingsForPath[ index ] = bindingsForPath[ lastIndex ];
+							bindingsForPath.pop();
+
+						}
+
+					} // cached or active
+
+				} // if object is known
+
+			} // for arguments
+
+			this.nCachedObjects_ = nCachedObjects;
+
+		},
+
+		// Internal interface used by befriended PropertyBinding.Composite:
+
+		subscribe_: function ( path, parsedPath ) {
+
+			// returns an array of bindings for the given path that is changed
+			// according to the contained objects in the group
+
+			var indicesByPath = this._bindingsIndicesByPath,
+				index = indicesByPath[ path ],
+				bindings = this._bindings;
+
+			if ( index !== undefined ) return bindings[ index ];
+
+			var paths = this._paths,
+				parsedPaths = this._parsedPaths,
+				objects = this._objects,
+				nObjects = objects.length,
+				nCachedObjects = this.nCachedObjects_,
+				bindingsForPath = new Array( nObjects );
+
+			index = bindings.length;
+
+			indicesByPath[ path ] = index;
+
+			paths.push( path );
+			parsedPaths.push( parsedPath );
+			bindings.push( bindingsForPath );
+
+			for ( var i = nCachedObjects, n = objects.length; i !== n; ++ i ) {
+
+				var object = objects[ i ];
+				bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );
+
+			}
+
+			return bindingsForPath;
+
+		},
+
+		unsubscribe_: function ( path ) {
+
+			// tells the group to forget about a property path and no longer
+			// update the array previously obtained with 'subscribe_'
+
+			var indicesByPath = this._bindingsIndicesByPath,
+				index = indicesByPath[ path ];
+
+			if ( index !== undefined ) {
+
+				var paths = this._paths,
+					parsedPaths = this._parsedPaths,
+					bindings = this._bindings,
+					lastBindingsIndex = bindings.length - 1,
+					lastBindings = bindings[ lastBindingsIndex ],
+					lastBindingsPath = path[ lastBindingsIndex ];
+
+				indicesByPath[ lastBindingsPath ] = index;
+
+				bindings[ index ] = lastBindings;
+				bindings.pop();
+
+				parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];
+				parsedPaths.pop();
+
+				paths[ index ] = paths[ lastBindingsIndex ];
+				paths.pop();
+
+			}
+
+		}
+
+	} );
+
+	/**
+	 *
+	 * Action provided by AnimationMixer for scheduling clip playback on specific
+	 * objects.
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 *
+	 */
+
+	function AnimationAction( mixer, clip, localRoot ) {
+
+		this._mixer = mixer;
+		this._clip = clip;
+		this._localRoot = localRoot || null;
+
+		var tracks = clip.tracks,
+			nTracks = tracks.length,
+			interpolants = new Array( nTracks );
+
+		var interpolantSettings = {
+			endingStart: ZeroCurvatureEnding,
+			endingEnd: ZeroCurvatureEnding
+		};
+
+		for ( var i = 0; i !== nTracks; ++ i ) {
+
+			var interpolant = tracks[ i ].createInterpolant( null );
+			interpolants[ i ] = interpolant;
+			interpolant.settings = interpolantSettings;
+
+		}
+
+		this._interpolantSettings = interpolantSettings;
+
+		this._interpolants = interpolants; // bound by the mixer
+
+		// inside: PropertyMixer (managed by the mixer)
+		this._propertyBindings = new Array( nTracks );
+
+		this._cacheIndex = null; // for the memory manager
+		this._byClipCacheIndex = null; // for the memory manager
+
+		this._timeScaleInterpolant = null;
+		this._weightInterpolant = null;
+
+		this.loop = LoopRepeat;
+		this._loopCount = - 1;
+
+		// global mixer time when the action is to be started
+		// it's set back to 'null' upon start of the action
+		this._startTime = null;
+
+		// scaled local time of the action
+		// gets clamped or wrapped to 0..clip.duration according to loop
+		this.time = 0;
+
+		this.timeScale = 1;
+		this._effectiveTimeScale = 1;
+
+		this.weight = 1;
+		this._effectiveWeight = 1;
+
+		this.repetitions = Infinity; // no. of repetitions when looping
+
+		this.paused = false; // true -> zero effective time scale
+		this.enabled = true; // false -> zero effective weight
+
+		this.clampWhenFinished = false;// keep feeding the last frame?
+
+		this.zeroSlopeAtStart = true;// for smooth interpolation w/o separate
+		this.zeroSlopeAtEnd = true;// clips for start, loop and end
+
+	}
+
+	Object.assign( AnimationAction.prototype, {
+
+		// State & Scheduling
+
+		play: function () {
+
+			this._mixer._activateAction( this );
+
+			return this;
+
+		},
+
+		stop: function () {
+
+			this._mixer._deactivateAction( this );
+
+			return this.reset();
+
+		},
+
+		reset: function () {
+
+			this.paused = false;
+			this.enabled = true;
+
+			this.time = 0; // restart clip
+			this._loopCount = - 1;// forget previous loops
+			this._startTime = null;// forget scheduling
+
+			return this.stopFading().stopWarping();
+
+		},
+
+		isRunning: function () {
+
+			return this.enabled && ! this.paused && this.timeScale !== 0 &&
+				this._startTime === null && this._mixer._isActiveAction( this );
+
+		},
+
+		// return true when play has been called
+		isScheduled: function () {
+
+			return this._mixer._isActiveAction( this );
+
+		},
+
+		startAt: function ( time ) {
+
+			this._startTime = time;
+
+			return this;
+
+		},
+
+		setLoop: function ( mode, repetitions ) {
+
+			this.loop = mode;
+			this.repetitions = repetitions;
+
+			return this;
+
+		},
+
+		// Weight
+
+		// set the weight stopping any scheduled fading
+		// although .enabled = false yields an effective weight of zero, this
+		// method does *not* change .enabled, because it would be confusing
+		setEffectiveWeight: function ( weight ) {
+
+			this.weight = weight;
+
+			// note: same logic as when updated at runtime
+			this._effectiveWeight = this.enabled ? weight : 0;
+
+			return this.stopFading();
+
+		},
+
+		// return the weight considering fading and .enabled
+		getEffectiveWeight: function () {
+
+			return this._effectiveWeight;
+
+		},
+
+		fadeIn: function ( duration ) {
+
+			return this._scheduleFading( duration, 0, 1 );
+
+		},
+
+		fadeOut: function ( duration ) {
+
+			return this._scheduleFading( duration, 1, 0 );
+
+		},
+
+		crossFadeFrom: function ( fadeOutAction, duration, warp ) {
+
+			fadeOutAction.fadeOut( duration );
+			this.fadeIn( duration );
+
+			if ( warp ) {
+
+				var fadeInDuration = this._clip.duration,
+					fadeOutDuration = fadeOutAction._clip.duration,
+
+					startEndRatio = fadeOutDuration / fadeInDuration,
+					endStartRatio = fadeInDuration / fadeOutDuration;
+
+				fadeOutAction.warp( 1.0, startEndRatio, duration );
+				this.warp( endStartRatio, 1.0, duration );
+
+			}
+
+			return this;
+
+		},
+
+		crossFadeTo: function ( fadeInAction, duration, warp ) {
+
+			return fadeInAction.crossFadeFrom( this, duration, warp );
+
+		},
+
+		stopFading: function () {
+
+			var weightInterpolant = this._weightInterpolant;
+
+			if ( weightInterpolant !== null ) {
+
+				this._weightInterpolant = null;
+				this._mixer._takeBackControlInterpolant( weightInterpolant );
+
+			}
+
+			return this;
+
+		},
+
+		// Time Scale Control
+
+		// set the time scale stopping any scheduled warping
+		// although .paused = true yields an effective time scale of zero, this
+		// method does *not* change .paused, because it would be confusing
+		setEffectiveTimeScale: function ( timeScale ) {
+
+			this.timeScale = timeScale;
+			this._effectiveTimeScale = this.paused ? 0 : timeScale;
+
+			return this.stopWarping();
+
+		},
+
+		// return the time scale considering warping and .paused
+		getEffectiveTimeScale: function () {
+
+			return this._effectiveTimeScale;
+
+		},
+
+		setDuration: function ( duration ) {
+
+			this.timeScale = this._clip.duration / duration;
+
+			return this.stopWarping();
+
+		},
+
+		syncWith: function ( action ) {
+
+			this.time = action.time;
+			this.timeScale = action.timeScale;
+
+			return this.stopWarping();
+
+		},
+
+		halt: function ( duration ) {
+
+			return this.warp( this._effectiveTimeScale, 0, duration );
+
+		},
+
+		warp: function ( startTimeScale, endTimeScale, duration ) {
+
+			var mixer = this._mixer, now = mixer.time,
+				interpolant = this._timeScaleInterpolant,
+
+				timeScale = this.timeScale;
+
+			if ( interpolant === null ) {
+
+				interpolant = mixer._lendControlInterpolant();
+				this._timeScaleInterpolant = interpolant;
+
+			}
+
+			var times = interpolant.parameterPositions,
+				values = interpolant.sampleValues;
+
+			times[ 0 ] = now;
+			times[ 1 ] = now + duration;
+
+			values[ 0 ] = startTimeScale / timeScale;
+			values[ 1 ] = endTimeScale / timeScale;
+
+			return this;
+
+		},
+
+		stopWarping: function () {
+
+			var timeScaleInterpolant = this._timeScaleInterpolant;
+
+			if ( timeScaleInterpolant !== null ) {
+
+				this._timeScaleInterpolant = null;
+				this._mixer._takeBackControlInterpolant( timeScaleInterpolant );
+
+			}
+
+			return this;
+
+		},
+
+		// Object Accessors
+
+		getMixer: function () {
+
+			return this._mixer;
+
+		},
+
+		getClip: function () {
+
+			return this._clip;
+
+		},
+
+		getRoot: function () {
+
+			return this._localRoot || this._mixer._root;
+
+		},
+
+		// Interna
+
+		_update: function ( time, deltaTime, timeDirection, accuIndex ) {
+
+			// called by the mixer
+
+			if ( ! this.enabled ) {
+
+				// call ._updateWeight() to update ._effectiveWeight
+
+				this._updateWeight( time );
+				return;
+
+			}
+
+			var startTime = this._startTime;
+
+			if ( startTime !== null ) {
+
+				// check for scheduled start of action
+
+				var timeRunning = ( time - startTime ) * timeDirection;
+				if ( timeRunning < 0 || timeDirection === 0 ) {
+
+					return; // yet to come / don't decide when delta = 0
+
+				}
+
+				// start
+
+				this._startTime = null; // unschedule
+				deltaTime = timeDirection * timeRunning;
+
+			}
+
+			// apply time scale and advance time
+
+			deltaTime *= this._updateTimeScale( time );
+			var clipTime = this._updateTime( deltaTime );
+
+			// note: _updateTime may disable the action resulting in
+			// an effective weight of 0
+
+			var weight = this._updateWeight( time );
+
+			if ( weight > 0 ) {
+
+				var interpolants = this._interpolants;
+				var propertyMixers = this._propertyBindings;
+
+				for ( var j = 0, m = interpolants.length; j !== m; ++ j ) {
+
+					interpolants[ j ].evaluate( clipTime );
+					propertyMixers[ j ].accumulate( accuIndex, weight );
+
+				}
+
+			}
+
+		},
+
+		_updateWeight: function ( time ) {
+
+			var weight = 0;
+
+			if ( this.enabled ) {
+
+				weight = this.weight;
+				var interpolant = this._weightInterpolant;
+
+				if ( interpolant !== null ) {
+
+					var interpolantValue = interpolant.evaluate( time )[ 0 ];
+
+					weight *= interpolantValue;
+
+					if ( time > interpolant.parameterPositions[ 1 ] ) {
+
+						this.stopFading();
+
+						if ( interpolantValue === 0 ) {
+
+							// faded out, disable
+							this.enabled = false;
+
+						}
+
+					}
+
+				}
+
+			}
+
+			this._effectiveWeight = weight;
+			return weight;
+
+		},
+
+		_updateTimeScale: function ( time ) {
+
+			var timeScale = 0;
+
+			if ( ! this.paused ) {
+
+				timeScale = this.timeScale;
+
+				var interpolant = this._timeScaleInterpolant;
+
+				if ( interpolant !== null ) {
+
+					var interpolantValue = interpolant.evaluate( time )[ 0 ];
+
+					timeScale *= interpolantValue;
+
+					if ( time > interpolant.parameterPositions[ 1 ] ) {
+
+						this.stopWarping();
+
+						if ( timeScale === 0 ) {
+
+							// motion has halted, pause
+							this.paused = true;
+
+						} else {
+
+							// warp done - apply final time scale
+							this.timeScale = timeScale;
+
+						}
+
+					}
+
+				}
+
+			}
+
+			this._effectiveTimeScale = timeScale;
+			return timeScale;
+
+		},
+
+		_updateTime: function ( deltaTime ) {
+
+			var time = this.time + deltaTime;
+			var duration = this._clip.duration;
+			var loop = this.loop;
+			var loopCount = this._loopCount;
+
+			var pingPong = ( loop === LoopPingPong );
+
+			if ( deltaTime === 0 ) {
+
+				if ( loopCount === - 1 ) return time;
+
+				return ( pingPong && ( loopCount & 1 ) === 1 ) ? duration - time : time;
+
+			}
+
+			if ( loop === LoopOnce ) {
+
+				if ( loopCount === - 1 ) {
+
+					// just started
+
+					this._loopCount = 0;
+					this._setEndings( true, true, false );
+
+				}
+
+				handle_stop: {
+
+					if ( time >= duration ) {
+
+						time = duration;
+
+					} else if ( time < 0 ) {
+
+						time = 0;
+
+					} else {
+
+						this.time = time;
+
+						break handle_stop;
+
+					}
+
+					if ( this.clampWhenFinished ) this.paused = true;
+					else this.enabled = false;
+
+					this.time = time;
+
+					this._mixer.dispatchEvent( {
+						type: 'finished', action: this,
+						direction: deltaTime < 0 ? - 1 : 1
+					} );
+
+				}
+
+			} else { // repetitive Repeat or PingPong
+
+				if ( loopCount === - 1 ) {
+
+					// just started
+
+					if ( deltaTime >= 0 ) {
+
+						loopCount = 0;
+
+						this._setEndings( true, this.repetitions === 0, pingPong );
+
+					} else {
+
+						// when looping in reverse direction, the initial
+						// transition through zero counts as a repetition,
+						// so leave loopCount at -1
+
+						this._setEndings( this.repetitions === 0, true, pingPong );
+
+					}
+
+				}
+
+				if ( time >= duration || time < 0 ) {
+
+					// wrap around
+
+					var loopDelta = Math.floor( time / duration ); // signed
+					time -= duration * loopDelta;
+
+					loopCount += Math.abs( loopDelta );
+
+					var pending = this.repetitions - loopCount;
+
+					if ( pending <= 0 ) {
+
+						// have to stop (switch state, clamp time, fire event)
+
+						if ( this.clampWhenFinished ) this.paused = true;
+						else this.enabled = false;
+
+						time = deltaTime > 0 ? duration : 0;
+
+						this.time = time;
+
+						this._mixer.dispatchEvent( {
+							type: 'finished', action: this,
+							direction: deltaTime > 0 ? 1 : - 1
+						} );
+
+					} else {
+
+						// keep running
+
+						if ( pending === 1 ) {
+
+							// entering the last round
+
+							var atStart = deltaTime < 0;
+							this._setEndings( atStart, ! atStart, pingPong );
+
+						} else {
+
+							this._setEndings( false, false, pingPong );
+
+						}
+
+						this._loopCount = loopCount;
+
+						this.time = time;
+
+						this._mixer.dispatchEvent( {
+							type: 'loop', action: this, loopDelta: loopDelta
+						} );
+
+					}
+
+				} else {
+
+					this.time = time;
+
+				}
+
+				if ( pingPong && ( loopCount & 1 ) === 1 ) {
+
+					// invert time for the "pong round"
+
+					return duration - time;
+
+				}
+
+			}
+
+			return time;
+
+		},
+
+		_setEndings: function ( atStart, atEnd, pingPong ) {
+
+			var settings = this._interpolantSettings;
+
+			if ( pingPong ) {
+
+				settings.endingStart = ZeroSlopeEnding;
+				settings.endingEnd = ZeroSlopeEnding;
+
+			} else {
+
+				// assuming for LoopOnce atStart == atEnd == true
+
+				if ( atStart ) {
+
+					settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;
+
+				} else {
+
+					settings.endingStart = WrapAroundEnding;
+
+				}
+
+				if ( atEnd ) {
+
+					settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;
+
+				} else {
+
+					settings.endingEnd 	 = WrapAroundEnding;
+
+				}
+
+			}
+
+		},
+
+		_scheduleFading: function ( duration, weightNow, weightThen ) {
+
+			var mixer = this._mixer, now = mixer.time,
+				interpolant = this._weightInterpolant;
+
+			if ( interpolant === null ) {
+
+				interpolant = mixer._lendControlInterpolant();
+				this._weightInterpolant = interpolant;
+
+			}
+
+			var times = interpolant.parameterPositions,
+				values = interpolant.sampleValues;
+
+			times[ 0 ] = now;
+			values[ 0 ] = weightNow;
+			times[ 1 ] = now + duration;
+			values[ 1 ] = weightThen;
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 *
+	 * Player for AnimationClips.
+	 *
+	 *
+	 * @author Ben Houston / http://clara.io/
+	 * @author David Sarno / http://lighthaus.us/
+	 * @author tschw
+	 */
+
+	function AnimationMixer( root ) {
+
+		this._root = root;
+		this._initMemoryManager();
+		this._accuIndex = 0;
+
+		this.time = 0;
+
+		this.timeScale = 1.0;
+
+	}
+
+	AnimationMixer.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
+
+		constructor: AnimationMixer,
+
+		_bindAction: function ( action, prototypeAction ) {
+
+			var root = action._localRoot || this._root,
+				tracks = action._clip.tracks,
+				nTracks = tracks.length,
+				bindings = action._propertyBindings,
+				interpolants = action._interpolants,
+				rootUuid = root.uuid,
+				bindingsByRoot = this._bindingsByRootAndName,
+				bindingsByName = bindingsByRoot[ rootUuid ];
+
+			if ( bindingsByName === undefined ) {
+
+				bindingsByName = {};
+				bindingsByRoot[ rootUuid ] = bindingsByName;
+
+			}
+
+			for ( var i = 0; i !== nTracks; ++ i ) {
+
+				var track = tracks[ i ],
+					trackName = track.name,
+					binding = bindingsByName[ trackName ];
+
+				if ( binding !== undefined ) {
+
+					bindings[ i ] = binding;
+
+				} else {
+
+					binding = bindings[ i ];
+
+					if ( binding !== undefined ) {
+
+						// existing binding, make sure the cache knows
+
+						if ( binding._cacheIndex === null ) {
+
+							++ binding.referenceCount;
+							this._addInactiveBinding( binding, rootUuid, trackName );
+
+						}
+
+						continue;
+
+					}
+
+					var path = prototypeAction && prototypeAction.
+						_propertyBindings[ i ].binding.parsedPath;
+
+					binding = new PropertyMixer(
+						PropertyBinding.create( root, trackName, path ),
+						track.ValueTypeName, track.getValueSize() );
+
+					++ binding.referenceCount;
+					this._addInactiveBinding( binding, rootUuid, trackName );
+
+					bindings[ i ] = binding;
+
+				}
+
+				interpolants[ i ].resultBuffer = binding.buffer;
+
+			}
+
+		},
+
+		_activateAction: function ( action ) {
+
+			if ( ! this._isActiveAction( action ) ) {
+
+				if ( action._cacheIndex === null ) {
+
+					// this action has been forgotten by the cache, but the user
+					// appears to be still using it -> rebind
+
+					var rootUuid = ( action._localRoot || this._root ).uuid,
+						clipUuid = action._clip.uuid,
+						actionsForClip = this._actionsByClip[ clipUuid ];
+
+					this._bindAction( action,
+						actionsForClip && actionsForClip.knownActions[ 0 ] );
+
+					this._addInactiveAction( action, clipUuid, rootUuid );
+
+				}
+
+				var bindings = action._propertyBindings;
+
+				// increment reference counts / sort out state
+				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
+
+					var binding = bindings[ i ];
+
+					if ( binding.useCount ++ === 0 ) {
+
+						this._lendBinding( binding );
+						binding.saveOriginalState();
+
+					}
+
+				}
+
+				this._lendAction( action );
+
+			}
+
+		},
+
+		_deactivateAction: function ( action ) {
+
+			if ( this._isActiveAction( action ) ) {
+
+				var bindings = action._propertyBindings;
+
+				// decrement reference counts / sort out state
+				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
+
+					var binding = bindings[ i ];
+
+					if ( -- binding.useCount === 0 ) {
+
+						binding.restoreOriginalState();
+						this._takeBackBinding( binding );
+
+					}
+
+				}
+
+				this._takeBackAction( action );
+
+			}
+
+		},
+
+		// Memory manager
+
+		_initMemoryManager: function () {
+
+			this._actions = []; // 'nActiveActions' followed by inactive ones
+			this._nActiveActions = 0;
+
+			this._actionsByClip = {};
+			// inside:
+			// {
+			// 	knownActions: Array< AnimationAction > - used as prototypes
+			// 	actionByRoot: AnimationAction - lookup
+			// }
+
+
+			this._bindings = []; // 'nActiveBindings' followed by inactive ones
+			this._nActiveBindings = 0;
+
+			this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >
+
+
+			this._controlInterpolants = []; // same game as above
+			this._nActiveControlInterpolants = 0;
+
+			var scope = this;
+
+			this.stats = {
+
+				actions: {
+					get total() {
+
+						return scope._actions.length;
+
+					},
+					get inUse() {
+
+						return scope._nActiveActions;
+
+					}
+				},
+				bindings: {
+					get total() {
+
+						return scope._bindings.length;
+
+					},
+					get inUse() {
+
+						return scope._nActiveBindings;
+
+					}
+				},
+				controlInterpolants: {
+					get total() {
+
+						return scope._controlInterpolants.length;
+
+					},
+					get inUse() {
+
+						return scope._nActiveControlInterpolants;
+
+					}
+				}
+
+			};
+
+		},
+
+		// Memory management for AnimationAction objects
+
+		_isActiveAction: function ( action ) {
+
+			var index = action._cacheIndex;
+			return index !== null && index < this._nActiveActions;
+
+		},
+
+		_addInactiveAction: function ( action, clipUuid, rootUuid ) {
+
+			var actions = this._actions,
+				actionsByClip = this._actionsByClip,
+				actionsForClip = actionsByClip[ clipUuid ];
+
+			if ( actionsForClip === undefined ) {
+
+				actionsForClip = {
+
+					knownActions: [ action ],
+					actionByRoot: {}
+
+				};
+
+				action._byClipCacheIndex = 0;
+
+				actionsByClip[ clipUuid ] = actionsForClip;
+
+			} else {
+
+				var knownActions = actionsForClip.knownActions;
+
+				action._byClipCacheIndex = knownActions.length;
+				knownActions.push( action );
+
+			}
+
+			action._cacheIndex = actions.length;
+			actions.push( action );
+
+			actionsForClip.actionByRoot[ rootUuid ] = action;
+
+		},
+
+		_removeInactiveAction: function ( action ) {
+
+			var actions = this._actions,
+				lastInactiveAction = actions[ actions.length - 1 ],
+				cacheIndex = action._cacheIndex;
+
+			lastInactiveAction._cacheIndex = cacheIndex;
+			actions[ cacheIndex ] = lastInactiveAction;
+			actions.pop();
+
+			action._cacheIndex = null;
+
+
+			var clipUuid = action._clip.uuid,
+				actionsByClip = this._actionsByClip,
+				actionsForClip = actionsByClip[ clipUuid ],
+				knownActionsForClip = actionsForClip.knownActions,
+
+				lastKnownAction =
+					knownActionsForClip[ knownActionsForClip.length - 1 ],
+
+				byClipCacheIndex = action._byClipCacheIndex;
+
+			lastKnownAction._byClipCacheIndex = byClipCacheIndex;
+			knownActionsForClip[ byClipCacheIndex ] = lastKnownAction;
+			knownActionsForClip.pop();
+
+			action._byClipCacheIndex = null;
+
+
+			var actionByRoot = actionsForClip.actionByRoot,
+				rootUuid = ( action._localRoot || this._root ).uuid;
+
+			delete actionByRoot[ rootUuid ];
+
+			if ( knownActionsForClip.length === 0 ) {
+
+				delete actionsByClip[ clipUuid ];
+
+			}
+
+			this._removeInactiveBindingsForAction( action );
+
+		},
+
+		_removeInactiveBindingsForAction: function ( action ) {
+
+			var bindings = action._propertyBindings;
+			for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
+
+				var binding = bindings[ i ];
+
+				if ( -- binding.referenceCount === 0 ) {
+
+					this._removeInactiveBinding( binding );
+
+				}
+
+			}
+
+		},
+
+		_lendAction: function ( action ) {
+
+			// [ active actions |  inactive actions  ]
+			// [  active actions >| inactive actions ]
+			//                 s        a
+			//                  <-swap->
+			//                 a        s
+
+			var actions = this._actions,
+				prevIndex = action._cacheIndex,
+
+				lastActiveIndex = this._nActiveActions ++,
+
+				firstInactiveAction = actions[ lastActiveIndex ];
+
+			action._cacheIndex = lastActiveIndex;
+			actions[ lastActiveIndex ] = action;
+
+			firstInactiveAction._cacheIndex = prevIndex;
+			actions[ prevIndex ] = firstInactiveAction;
+
+		},
+
+		_takeBackAction: function ( action ) {
+
+			// [  active actions  | inactive actions ]
+			// [ active actions |< inactive actions  ]
+			//        a        s
+			//         <-swap->
+			//        s        a
+
+			var actions = this._actions,
+				prevIndex = action._cacheIndex,
+
+				firstInactiveIndex = -- this._nActiveActions,
+
+				lastActiveAction = actions[ firstInactiveIndex ];
+
+			action._cacheIndex = firstInactiveIndex;
+			actions[ firstInactiveIndex ] = action;
+
+			lastActiveAction._cacheIndex = prevIndex;
+			actions[ prevIndex ] = lastActiveAction;
+
+		},
+
+		// Memory management for PropertyMixer objects
+
+		_addInactiveBinding: function ( binding, rootUuid, trackName ) {
+
+			var bindingsByRoot = this._bindingsByRootAndName,
+				bindingByName = bindingsByRoot[ rootUuid ],
+
+				bindings = this._bindings;
+
+			if ( bindingByName === undefined ) {
+
+				bindingByName = {};
+				bindingsByRoot[ rootUuid ] = bindingByName;
+
+			}
+
+			bindingByName[ trackName ] = binding;
+
+			binding._cacheIndex = bindings.length;
+			bindings.push( binding );
+
+		},
+
+		_removeInactiveBinding: function ( binding ) {
+
+			var bindings = this._bindings,
+				propBinding = binding.binding,
+				rootUuid = propBinding.rootNode.uuid,
+				trackName = propBinding.path,
+				bindingsByRoot = this._bindingsByRootAndName,
+				bindingByName = bindingsByRoot[ rootUuid ],
+
+				lastInactiveBinding = bindings[ bindings.length - 1 ],
+				cacheIndex = binding._cacheIndex;
+
+			lastInactiveBinding._cacheIndex = cacheIndex;
+			bindings[ cacheIndex ] = lastInactiveBinding;
+			bindings.pop();
+
+			delete bindingByName[ trackName ];
+
+			remove_empty_map: {
+
+				for ( var _ in bindingByName ) break remove_empty_map; // eslint-disable-line no-unused-vars
+
+				delete bindingsByRoot[ rootUuid ];
+
+			}
+
+		},
+
+		_lendBinding: function ( binding ) {
+
+			var bindings = this._bindings,
+				prevIndex = binding._cacheIndex,
+
+				lastActiveIndex = this._nActiveBindings ++,
+
+				firstInactiveBinding = bindings[ lastActiveIndex ];
+
+			binding._cacheIndex = lastActiveIndex;
+			bindings[ lastActiveIndex ] = binding;
+
+			firstInactiveBinding._cacheIndex = prevIndex;
+			bindings[ prevIndex ] = firstInactiveBinding;
+
+		},
+
+		_takeBackBinding: function ( binding ) {
+
+			var bindings = this._bindings,
+				prevIndex = binding._cacheIndex,
+
+				firstInactiveIndex = -- this._nActiveBindings,
+
+				lastActiveBinding = bindings[ firstInactiveIndex ];
+
+			binding._cacheIndex = firstInactiveIndex;
+			bindings[ firstInactiveIndex ] = binding;
+
+			lastActiveBinding._cacheIndex = prevIndex;
+			bindings[ prevIndex ] = lastActiveBinding;
+
+		},
+
+
+		// Memory management of Interpolants for weight and time scale
+
+		_lendControlInterpolant: function () {
+
+			var interpolants = this._controlInterpolants,
+				lastActiveIndex = this._nActiveControlInterpolants ++,
+				interpolant = interpolants[ lastActiveIndex ];
+
+			if ( interpolant === undefined ) {
+
+				interpolant = new LinearInterpolant(
+					new Float32Array( 2 ), new Float32Array( 2 ),
+					1, this._controlInterpolantsResultBuffer );
+
+				interpolant.__cacheIndex = lastActiveIndex;
+				interpolants[ lastActiveIndex ] = interpolant;
+
+			}
+
+			return interpolant;
+
+		},
+
+		_takeBackControlInterpolant: function ( interpolant ) {
+
+			var interpolants = this._controlInterpolants,
+				prevIndex = interpolant.__cacheIndex,
+
+				firstInactiveIndex = -- this._nActiveControlInterpolants,
+
+				lastActiveInterpolant = interpolants[ firstInactiveIndex ];
+
+			interpolant.__cacheIndex = firstInactiveIndex;
+			interpolants[ firstInactiveIndex ] = interpolant;
+
+			lastActiveInterpolant.__cacheIndex = prevIndex;
+			interpolants[ prevIndex ] = lastActiveInterpolant;
+
+		},
+
+		_controlInterpolantsResultBuffer: new Float32Array( 1 ),
+
+		// return an action for a clip optionally using a custom root target
+		// object (this method allocates a lot of dynamic memory in case a
+		// previously unknown clip/root combination is specified)
+		clipAction: function ( clip, optionalRoot ) {
+
+			var root = optionalRoot || this._root,
+				rootUuid = root.uuid,
+
+				clipObject = typeof clip === 'string' ?
+					AnimationClip.findByName( root, clip ) : clip,
+
+				clipUuid = clipObject !== null ? clipObject.uuid : clip,
+
+				actionsForClip = this._actionsByClip[ clipUuid ],
+				prototypeAction = null;
+
+			if ( actionsForClip !== undefined ) {
+
+				var existingAction =
+						actionsForClip.actionByRoot[ rootUuid ];
+
+				if ( existingAction !== undefined ) {
+
+					return existingAction;
+
+				}
+
+				// we know the clip, so we don't have to parse all
+				// the bindings again but can just copy
+				prototypeAction = actionsForClip.knownActions[ 0 ];
+
+				// also, take the clip from the prototype action
+				if ( clipObject === null )
+					clipObject = prototypeAction._clip;
+
+			}
+
+			// clip must be known when specified via string
+			if ( clipObject === null ) return null;
+
+			// allocate all resources required to run it
+			var newAction = new AnimationAction( this, clipObject, optionalRoot );
+
+			this._bindAction( newAction, prototypeAction );
+
+			// and make the action known to the memory manager
+			this._addInactiveAction( newAction, clipUuid, rootUuid );
+
+			return newAction;
+
+		},
+
+		// get an existing action
+		existingAction: function ( clip, optionalRoot ) {
+
+			var root = optionalRoot || this._root,
+				rootUuid = root.uuid,
+
+				clipObject = typeof clip === 'string' ?
+					AnimationClip.findByName( root, clip ) : clip,
+
+				clipUuid = clipObject ? clipObject.uuid : clip,
+
+				actionsForClip = this._actionsByClip[ clipUuid ];
+
+			if ( actionsForClip !== undefined ) {
+
+				return actionsForClip.actionByRoot[ rootUuid ] || null;
+
+			}
+
+			return null;
+
+		},
+
+		// deactivates all previously scheduled actions
+		stopAllAction: function () {
+
+			var actions = this._actions,
+				nActions = this._nActiveActions,
+				bindings = this._bindings,
+				nBindings = this._nActiveBindings;
+
+			this._nActiveActions = 0;
+			this._nActiveBindings = 0;
+
+			for ( var i = 0; i !== nActions; ++ i ) {
+
+				actions[ i ].reset();
+
+			}
+
+			for ( var i = 0; i !== nBindings; ++ i ) {
+
+				bindings[ i ].useCount = 0;
+
+			}
+
+			return this;
+
+		},
+
+		// advance the time and update apply the animation
+		update: function ( deltaTime ) {
+
+			deltaTime *= this.timeScale;
+
+			var actions = this._actions,
+				nActions = this._nActiveActions,
+
+				time = this.time += deltaTime,
+				timeDirection = Math.sign( deltaTime ),
+
+				accuIndex = this._accuIndex ^= 1;
+
+			// run active actions
+
+			for ( var i = 0; i !== nActions; ++ i ) {
+
+				var action = actions[ i ];
+
+				action._update( time, deltaTime, timeDirection, accuIndex );
+
+			}
+
+			// update scene graph
+
+			var bindings = this._bindings,
+				nBindings = this._nActiveBindings;
+
+			for ( var i = 0; i !== nBindings; ++ i ) {
+
+				bindings[ i ].apply( accuIndex );
+
+			}
+
+			return this;
+
+		},
+
+		// return this mixer's root target object
+		getRoot: function () {
+
+			return this._root;
+
+		},
+
+		// free all resources specific to a particular clip
+		uncacheClip: function ( clip ) {
+
+			var actions = this._actions,
+				clipUuid = clip.uuid,
+				actionsByClip = this._actionsByClip,
+				actionsForClip = actionsByClip[ clipUuid ];
+
+			if ( actionsForClip !== undefined ) {
+
+				// note: just calling _removeInactiveAction would mess up the
+				// iteration state and also require updating the state we can
+				// just throw away
+
+				var actionsToRemove = actionsForClip.knownActions;
+
+				for ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {
+
+					var action = actionsToRemove[ i ];
+
+					this._deactivateAction( action );
+
+					var cacheIndex = action._cacheIndex,
+						lastInactiveAction = actions[ actions.length - 1 ];
+
+					action._cacheIndex = null;
+					action._byClipCacheIndex = null;
+
+					lastInactiveAction._cacheIndex = cacheIndex;
+					actions[ cacheIndex ] = lastInactiveAction;
+					actions.pop();
+
+					this._removeInactiveBindingsForAction( action );
+
+				}
+
+				delete actionsByClip[ clipUuid ];
+
+			}
+
+		},
+
+		// free all resources specific to a particular root target object
+		uncacheRoot: function ( root ) {
+
+			var rootUuid = root.uuid,
+				actionsByClip = this._actionsByClip;
+
+			for ( var clipUuid in actionsByClip ) {
+
+				var actionByRoot = actionsByClip[ clipUuid ].actionByRoot,
+					action = actionByRoot[ rootUuid ];
+
+				if ( action !== undefined ) {
+
+					this._deactivateAction( action );
+					this._removeInactiveAction( action );
+
+				}
+
+			}
+
+			var bindingsByRoot = this._bindingsByRootAndName,
+				bindingByName = bindingsByRoot[ rootUuid ];
+
+			if ( bindingByName !== undefined ) {
+
+				for ( var trackName in bindingByName ) {
+
+					var binding = bindingByName[ trackName ];
+					binding.restoreOriginalState();
+					this._removeInactiveBinding( binding );
+
+				}
+
+			}
+
+		},
+
+		// remove a targeted clip from the cache
+		uncacheAction: function ( clip, optionalRoot ) {
+
+			var action = this.existingAction( clip, optionalRoot );
+
+			if ( action !== null ) {
+
+				this._deactivateAction( action );
+				this._removeInactiveAction( action );
+
+			}
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function Uniform( value ) {
+
+		if ( typeof value === 'string' ) {
+
+			console.warn( 'THREE.Uniform: Type parameter is no longer needed.' );
+			value = arguments[ 1 ];
+
+		}
+
+		this.value = value;
+
+	}
+
+	Uniform.prototype.clone = function () {
+
+		return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );
+
+	};
+
+	/**
+	 * @author benaadams / https://twitter.com/ben_a_adams
+	 */
+
+	function InstancedInterleavedBuffer( array, stride, meshPerAttribute ) {
+
+		InterleavedBuffer.call( this, array, stride );
+
+		this.meshPerAttribute = meshPerAttribute || 1;
+
+	}
+
+	InstancedInterleavedBuffer.prototype = Object.assign( Object.create( InterleavedBuffer.prototype ), {
+
+		constructor: InstancedInterleavedBuffer,
+
+		isInstancedInterleavedBuffer: true,
+
+		copy: function ( source ) {
+
+			InterleavedBuffer.prototype.copy.call( this, source );
+
+			this.meshPerAttribute = source.meshPerAttribute;
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author bhouston / http://clara.io/
+	 * @author stephomi / http://stephaneginier.com/
+	 */
+
+	function Raycaster( origin, direction, near, far ) {
+
+		this.ray = new Ray( origin, direction );
+		// direction is assumed to be normalized (for accurate distance calculations)
+
+		this.near = near || 0;
+		this.far = far || Infinity;
+
+		this.params = {
+			Mesh: {},
+			Line: {},
+			LOD: {},
+			Points: { threshold: 1 },
+			Sprite: {}
+		};
+
+		Object.defineProperties( this.params, {
+			PointCloud: {
+				get: function () {
+
+					console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );
+					return this.Points;
+
+				}
+			}
+		} );
+
+	}
+
+	function ascSort( a, b ) {
+
+		return a.distance - b.distance;
+
+	}
+
+	function intersectObject( object, raycaster, intersects, recursive ) {
+
+		if ( object.visible === false ) return;
+
+		object.raycast( raycaster, intersects );
+
+		if ( recursive === true ) {
+
+			var children = object.children;
+
+			for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+				intersectObject( children[ i ], raycaster, intersects, true );
+
+			}
+
+		}
+
+	}
+
+	Object.assign( Raycaster.prototype, {
+
+		linePrecision: 1,
+
+		set: function ( origin, direction ) {
+
+			// direction is assumed to be normalized (for accurate distance calculations)
+
+			this.ray.set( origin, direction );
+
+		},
+
+		setFromCamera: function ( coords, camera ) {
+
+			if ( ( camera && camera.isPerspectiveCamera ) ) {
+
+				this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
+				this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();
+
+			} else if ( ( camera && camera.isOrthographicCamera ) ) {
+
+				this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera
+				this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );
+
+			} else {
+
+				console.error( 'THREE.Raycaster: Unsupported camera type.' );
+
+			}
+
+		},
+
+		intersectObject: function ( object, recursive, optionalTarget ) {
+
+			var intersects = optionalTarget || [];
+
+			intersectObject( object, this, intersects, recursive );
+
+			intersects.sort( ascSort );
+
+			return intersects;
+
+		},
+
+		intersectObjects: function ( objects, recursive, optionalTarget ) {
+
+			var intersects = optionalTarget || [];
+
+			if ( Array.isArray( objects ) === false ) {
+
+				console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );
+				return intersects;
+
+			}
+
+			for ( var i = 0, l = objects.length; i < l; i ++ ) {
+
+				intersectObject( objects[ i ], this, intersects, recursive );
+
+			}
+
+			intersects.sort( ascSort );
+
+			return intersects;
+
+		}
+
+	} );
+
+	/**
+	 * @author bhouston / http://clara.io
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
+	 *
+	 * The polar angle (phi) is measured from the positive y-axis. The positive y-axis is up.
+	 * The azimuthal angle (theta) is measured from the positive z-axiz.
+	 */
+
+	function Spherical( radius, phi, theta ) {
+
+		this.radius = ( radius !== undefined ) ? radius : 1.0;
+		this.phi = ( phi !== undefined ) ? phi : 0; // polar angle
+		this.theta = ( theta !== undefined ) ? theta : 0; // azimuthal angle
+
+		return this;
+
+	}
+
+	Object.assign( Spherical.prototype, {
+
+		set: function ( radius, phi, theta ) {
+
+			this.radius = radius;
+			this.phi = phi;
+			this.theta = theta;
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( other ) {
+
+			this.radius = other.radius;
+			this.phi = other.phi;
+			this.theta = other.theta;
+
+			return this;
+
+		},
+
+		// restrict phi to be betwee EPS and PI-EPS
+		makeSafe: function () {
+
+			var EPS = 0.000001;
+			this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );
+
+			return this;
+
+		},
+
+		setFromVector3: function ( v ) {
+
+			return this.setFromCartesianCoords( v.x, v.y, v.z );
+
+		},
+
+		setFromCartesianCoords: function ( x, y, z ) {
+
+			this.radius = Math.sqrt( x * x + y * y + z * z );
+
+			if ( this.radius === 0 ) {
+
+				this.theta = 0;
+				this.phi = 0;
+
+			} else {
+
+				this.theta = Math.atan2( x, z );
+				this.phi = Math.acos( _Math.clamp( y / this.radius, - 1, 1 ) );
+
+			}
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author Mugen87 / https://github.com/Mugen87
+	 *
+	 * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
+	 *
+	 */
+
+	function Cylindrical( radius, theta, y ) {
+
+		this.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane
+		this.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
+		this.y = ( y !== undefined ) ? y : 0; // height above the x-z plane
+
+		return this;
+
+	}
+
+	Object.assign( Cylindrical.prototype, {
+
+		set: function ( radius, theta, y ) {
+
+			this.radius = radius;
+			this.theta = theta;
+			this.y = y;
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( other ) {
+
+			this.radius = other.radius;
+			this.theta = other.theta;
+			this.y = other.y;
+
+			return this;
+
+		},
+
+		setFromVector3: function ( v ) {
+
+			return this.setFromCartesianCoords( v.x, v.y, v.z );
+
+		},
+
+		setFromCartesianCoords: function ( x, y, z ) {
+
+			this.radius = Math.sqrt( x * x + z * z );
+			this.theta = Math.atan2( x, z );
+			this.y = y;
+
+			return this;
+
+		}
+
+	} );
+
+	/**
+	 * @author bhouston / http://clara.io
+	 */
+
+	function Box2( min, max ) {
+
+		this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );
+		this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );
+
+	}
+
+	Object.assign( Box2.prototype, {
+
+		set: function ( min, max ) {
+
+			this.min.copy( min );
+			this.max.copy( max );
+
+			return this;
+
+		},
+
+		setFromPoints: function ( points ) {
+
+			this.makeEmpty();
+
+			for ( var i = 0, il = points.length; i < il; i ++ ) {
+
+				this.expandByPoint( points[ i ] );
+
+			}
+
+			return this;
+
+		},
+
+		setFromCenterAndSize: function () {
+
+			var v1 = new Vector2();
+
+			return function setFromCenterAndSize( center, size ) {
+
+				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
+				this.min.copy( center ).sub( halfSize );
+				this.max.copy( center ).add( halfSize );
+
+				return this;
+
+			};
+
+		}(),
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( box ) {
+
+			this.min.copy( box.min );
+			this.max.copy( box.max );
+
+			return this;
+
+		},
+
+		makeEmpty: function () {
+
+			this.min.x = this.min.y = + Infinity;
+			this.max.x = this.max.y = - Infinity;
+
+			return this;
+
+		},
+
+		isEmpty: function () {
+
+			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
+
+			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );
+
+		},
+
+		getCenter: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Box2: .getCenter() target is now required' );
+				target = new Vector2();
+
+			}
+
+			return this.isEmpty() ? target.set( 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );
+
+		},
+
+		getSize: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Box2: .getSize() target is now required' );
+				target = new Vector2();
+
+			}
+
+			return this.isEmpty() ? target.set( 0, 0 ) : target.subVectors( this.max, this.min );
+
+		},
+
+		expandByPoint: function ( point ) {
+
+			this.min.min( point );
+			this.max.max( point );
+
+			return this;
+
+		},
+
+		expandByVector: function ( vector ) {
+
+			this.min.sub( vector );
+			this.max.add( vector );
+
+			return this;
+
+		},
+
+		expandByScalar: function ( scalar ) {
+
+			this.min.addScalar( - scalar );
+			this.max.addScalar( scalar );
+
+			return this;
+
+		},
+
+		containsPoint: function ( point ) {
+
+			return point.x < this.min.x || point.x > this.max.x ||
+				point.y < this.min.y || point.y > this.max.y ? false : true;
+
+		},
+
+		containsBox: function ( box ) {
+
+			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
+				this.min.y <= box.min.y && box.max.y <= this.max.y;
+
+		},
+
+		getParameter: function ( point, target ) {
+
+			// This can potentially have a divide by zero if the box
+			// has a size dimension of 0.
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Box2: .getParameter() target is now required' );
+				target = new Vector2();
+
+			}
+
+			return target.set(
+				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
+				( point.y - this.min.y ) / ( this.max.y - this.min.y )
+			);
+
+		},
+
+		intersectsBox: function ( box ) {
+
+			// using 4 splitting planes to rule out intersections
+
+			return box.max.x < this.min.x || box.min.x > this.max.x ||
+				box.max.y < this.min.y || box.min.y > this.max.y ? false : true;
+
+		},
+
+		clampPoint: function ( point, target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Box2: .clampPoint() target is now required' );
+				target = new Vector2();
+
+			}
+
+			return target.copy( point ).clamp( this.min, this.max );
+
+		},
+
+		distanceToPoint: function () {
+
+			var v1 = new Vector2();
+
+			return function distanceToPoint( point ) {
+
+				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
+				return clampedPoint.sub( point ).length();
+
+			};
+
+		}(),
+
+		intersect: function ( box ) {
+
+			this.min.max( box.min );
+			this.max.min( box.max );
+
+			return this;
+
+		},
+
+		union: function ( box ) {
+
+			this.min.min( box.min );
+			this.max.max( box.max );
+
+			return this;
+
+		},
+
+		translate: function ( offset ) {
+
+			this.min.add( offset );
+			this.max.add( offset );
+
+			return this;
+
+		},
+
+		equals: function ( box ) {
+
+			return box.min.equals( this.min ) && box.max.equals( this.max );
+
+		}
+
+	} );
+
+	/**
+	 * @author bhouston / http://clara.io
+	 */
+
+	function Line3( start, end ) {
+
+		this.start = ( start !== undefined ) ? start : new Vector3();
+		this.end = ( end !== undefined ) ? end : new Vector3();
+
+	}
+
+	Object.assign( Line3.prototype, {
+
+		set: function ( start, end ) {
+
+			this.start.copy( start );
+			this.end.copy( end );
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		},
+
+		copy: function ( line ) {
+
+			this.start.copy( line.start );
+			this.end.copy( line.end );
+
+			return this;
+
+		},
+
+		getCenter: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Line3: .getCenter() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return target.addVectors( this.start, this.end ).multiplyScalar( 0.5 );
+
+		},
+
+		delta: function ( target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Line3: .delta() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return target.subVectors( this.end, this.start );
+
+		},
+
+		distanceSq: function () {
+
+			return this.start.distanceToSquared( this.end );
+
+		},
+
+		distance: function () {
+
+			return this.start.distanceTo( this.end );
+
+		},
+
+		at: function ( t, target ) {
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Line3: .at() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return this.delta( target ).multiplyScalar( t ).add( this.start );
+
+		},
+
+		closestPointToPointParameter: function () {
+
+			var startP = new Vector3();
+			var startEnd = new Vector3();
+
+			return function closestPointToPointParameter( point, clampToLine ) {
+
+				startP.subVectors( point, this.start );
+				startEnd.subVectors( this.end, this.start );
+
+				var startEnd2 = startEnd.dot( startEnd );
+				var startEnd_startP = startEnd.dot( startP );
+
+				var t = startEnd_startP / startEnd2;
+
+				if ( clampToLine ) {
+
+					t = _Math.clamp( t, 0, 1 );
+
+				}
+
+				return t;
+
+			};
+
+		}(),
+
+		closestPointToPoint: function ( point, clampToLine, target ) {
+
+			var t = this.closestPointToPointParameter( point, clampToLine );
+
+			if ( target === undefined ) {
+
+				console.warn( 'THREE.Line3: .closestPointToPoint() target is now required' );
+				target = new Vector3();
+
+			}
+
+			return this.delta( target ).multiplyScalar( t ).add( this.start );
+
+		},
+
+		applyMatrix4: function ( matrix ) {
+
+			this.start.applyMatrix4( matrix );
+			this.end.applyMatrix4( matrix );
+
+			return this;
+
+		},
+
+		equals: function ( line ) {
+
+			return line.start.equals( this.start ) && line.end.equals( this.end );
+
+		}
+
+	} );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 */
+
+	function ImmediateRenderObject( material ) {
+
+		Object3D.call( this );
+
+		this.material = material;
+		this.render = function ( /* renderCallback */ ) {};
+
+	}
+
+	ImmediateRenderObject.prototype = Object.create( Object3D.prototype );
+	ImmediateRenderObject.prototype.constructor = ImmediateRenderObject;
+
+	ImmediateRenderObject.prototype.isImmediateRenderObject = true;
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function VertexNormalsHelper( object, size, hex, linewidth ) {
+
+		this.object = object;
+
+		this.size = ( size !== undefined ) ? size : 1;
+
+		var color = ( hex !== undefined ) ? hex : 0xff0000;
+
+		var width = ( linewidth !== undefined ) ? linewidth : 1;
+
+		//
+
+		var nNormals = 0;
+
+		var objGeometry = this.object.geometry;
+
+		if ( objGeometry && objGeometry.isGeometry ) {
+
+			nNormals = objGeometry.faces.length * 3;
+
+		} else if ( objGeometry && objGeometry.isBufferGeometry ) {
+
+			nNormals = objGeometry.attributes.normal.count;
+
+		}
+
+		//
+
+		var geometry = new BufferGeometry();
+
+		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );
+
+		geometry.addAttribute( 'position', positions );
+
+		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );
+
+		//
+
+		this.matrixAutoUpdate = false;
+
+		this.update();
+
+	}
+
+	VertexNormalsHelper.prototype = Object.create( LineSegments.prototype );
+	VertexNormalsHelper.prototype.constructor = VertexNormalsHelper;
+
+	VertexNormalsHelper.prototype.update = ( function () {
+
+		var v1 = new Vector3();
+		var v2 = new Vector3();
+		var normalMatrix = new Matrix3();
+
+		return function update() {
+
+			var keys = [ 'a', 'b', 'c' ];
+
+			this.object.updateMatrixWorld( true );
+
+			normalMatrix.getNormalMatrix( this.object.matrixWorld );
+
+			var matrixWorld = this.object.matrixWorld;
+
+			var position = this.geometry.attributes.position;
+
+			//
+
+			var objGeometry = this.object.geometry;
+
+			if ( objGeometry && objGeometry.isGeometry ) {
+
+				var vertices = objGeometry.vertices;
+
+				var faces = objGeometry.faces;
+
+				var idx = 0;
+
+				for ( var i = 0, l = faces.length; i < l; i ++ ) {
+
+					var face = faces[ i ];
+
+					for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {
+
+						var vertex = vertices[ face[ keys[ j ] ] ];
+
+						var normal = face.vertexNormals[ j ];
+
+						v1.copy( vertex ).applyMatrix4( matrixWorld );
+
+						v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
+
+						position.setXYZ( idx, v1.x, v1.y, v1.z );
+
+						idx = idx + 1;
+
+						position.setXYZ( idx, v2.x, v2.y, v2.z );
+
+						idx = idx + 1;
+
+					}
+
+				}
+
+			} else if ( objGeometry && objGeometry.isBufferGeometry ) {
+
+				var objPos = objGeometry.attributes.position;
+
+				var objNorm = objGeometry.attributes.normal;
+
+				var idx = 0;
+
+				// for simplicity, ignore index and drawcalls, and render every normal
+
+				for ( var j = 0, jl = objPos.count; j < jl; j ++ ) {
+
+					v1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );
+
+					v2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );
+
+					v2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
+
+					position.setXYZ( idx, v1.x, v1.y, v1.z );
+
+					idx = idx + 1;
+
+					position.setXYZ( idx, v2.x, v2.y, v2.z );
+
+					idx = idx + 1;
+
+				}
+
+			}
+
+			position.needsUpdate = true;
+
+		};
+
+	}() );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function SpotLightHelper( light, color ) {
+
+		Object3D.call( this );
+
+		this.light = light;
+		this.light.updateMatrixWorld();
+
+		this.matrix = light.matrixWorld;
+		this.matrixAutoUpdate = false;
+
+		this.color = color;
+
+		var geometry = new BufferGeometry();
+
+		var positions = [
+			0, 0, 0, 	0, 0, 1,
+			0, 0, 0, 	1, 0, 1,
+			0, 0, 0,	- 1, 0, 1,
+			0, 0, 0, 	0, 1, 1,
+			0, 0, 0, 	0, - 1, 1
+		];
+
+		for ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {
+
+			var p1 = ( i / l ) * Math.PI * 2;
+			var p2 = ( j / l ) * Math.PI * 2;
+
+			positions.push(
+				Math.cos( p1 ), Math.sin( p1 ), 1,
+				Math.cos( p2 ), Math.sin( p2 ), 1
+			);
+
+		}
+
+		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
+
+		var material = new LineBasicMaterial( { fog: false } );
+
+		this.cone = new LineSegments( geometry, material );
+		this.add( this.cone );
+
+		this.update();
+
+	}
+
+	SpotLightHelper.prototype = Object.create( Object3D.prototype );
+	SpotLightHelper.prototype.constructor = SpotLightHelper;
+
+	SpotLightHelper.prototype.dispose = function () {
+
+		this.cone.geometry.dispose();
+		this.cone.material.dispose();
+
+	};
+
+	SpotLightHelper.prototype.update = function () {
+
+		var vector = new Vector3();
+
+		return function update() {
+
+			this.light.updateMatrixWorld();
+
+			var coneLength = this.light.distance ? this.light.distance : 1000;
+			var coneWidth = coneLength * Math.tan( this.light.angle );
+
+			this.cone.scale.set( coneWidth, coneWidth, coneLength );
+
+			vector.setFromMatrixPosition( this.light.target.matrixWorld );
+
+			this.cone.lookAt( vector );
+
+			if ( this.color !== undefined ) {
+
+				this.cone.material.color.set( this.color );
+
+			} else {
+
+				this.cone.material.color.copy( this.light.color );
+
+			}
+
+		};
+
+	}();
+
+	/**
+	 * @author Sean Griffin / http://twitter.com/sgrif
+	 * @author Michael Guerrero / http://realitymeltdown.com
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author ikerr / http://verold.com
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	function getBoneList( object ) {
+
+		var boneList = [];
+
+		if ( object && object.isBone ) {
+
+			boneList.push( object );
+
+		}
+
+		for ( var i = 0; i < object.children.length; i ++ ) {
+
+			boneList.push.apply( boneList, getBoneList( object.children[ i ] ) );
+
+		}
+
+		return boneList;
+
+	}
+
+	function SkeletonHelper( object ) {
+
+		var bones = getBoneList( object );
+
+		var geometry = new BufferGeometry();
+
+		var vertices = [];
+		var colors = [];
+
+		var color1 = new Color( 0, 0, 1 );
+		var color2 = new Color( 0, 1, 0 );
+
+		for ( var i = 0; i < bones.length; i ++ ) {
+
+			var bone = bones[ i ];
+
+			if ( bone.parent && bone.parent.isBone ) {
+
+				vertices.push( 0, 0, 0 );
+				vertices.push( 0, 0, 0 );
+				colors.push( color1.r, color1.g, color1.b );
+				colors.push( color2.r, color2.g, color2.b );
+
+			}
+
+		}
+
+		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+		var material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } );
+
+		LineSegments.call( this, geometry, material );
+
+		this.root = object;
+		this.bones = bones;
+
+		this.matrix = object.matrixWorld;
+		this.matrixAutoUpdate = false;
+
+	}
+
+	SkeletonHelper.prototype = Object.create( LineSegments.prototype );
+	SkeletonHelper.prototype.constructor = SkeletonHelper;
+
+	SkeletonHelper.prototype.updateMatrixWorld = function () {
+
+		var vector = new Vector3();
+
+		var boneMatrix = new Matrix4();
+		var matrixWorldInv = new Matrix4();
+
+		return function updateMatrixWorld( force ) {
+
+			var bones = this.bones;
+
+			var geometry = this.geometry;
+			var position = geometry.getAttribute( 'position' );
+
+			matrixWorldInv.getInverse( this.root.matrixWorld );
+
+			for ( var i = 0, j = 0; i < bones.length; i ++ ) {
+
+				var bone = bones[ i ];
+
+				if ( bone.parent && bone.parent.isBone ) {
+
+					boneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );
+					vector.setFromMatrixPosition( boneMatrix );
+					position.setXYZ( j, vector.x, vector.y, vector.z );
+
+					boneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );
+					vector.setFromMatrixPosition( boneMatrix );
+					position.setXYZ( j + 1, vector.x, vector.y, vector.z );
+
+					j += 2;
+
+				}
+
+			}
+
+			geometry.getAttribute( 'position' ).needsUpdate = true;
+
+			Object3D.prototype.updateMatrixWorld.call( this, force );
+
+		};
+
+	}();
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function PointLightHelper( light, sphereSize, color ) {
+
+		this.light = light;
+		this.light.updateMatrixWorld();
+
+		this.color = color;
+
+		var geometry = new SphereBufferGeometry( sphereSize, 4, 2 );
+		var material = new MeshBasicMaterial( { wireframe: true, fog: false } );
+
+		Mesh.call( this, geometry, material );
+
+		this.matrix = this.light.matrixWorld;
+		this.matrixAutoUpdate = false;
+
+		this.update();
+
+
+		/*
+		var distanceGeometry = new THREE.IcosahedronBufferGeometry( 1, 2 );
+		var distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );
+
+		this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
+		this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );
+
+		var d = light.distance;
+
+		if ( d === 0.0 ) {
+
+			this.lightDistance.visible = false;
+
+		} else {
+
+			this.lightDistance.scale.set( d, d, d );
+
+		}
+
+		this.add( this.lightDistance );
+		*/
+
+	}
+
+	PointLightHelper.prototype = Object.create( Mesh.prototype );
+	PointLightHelper.prototype.constructor = PointLightHelper;
+
+	PointLightHelper.prototype.dispose = function () {
+
+		this.geometry.dispose();
+		this.material.dispose();
+
+	};
+
+	PointLightHelper.prototype.update = function () {
+
+		if ( this.color !== undefined ) {
+
+			this.material.color.set( this.color );
+
+		} else {
+
+			this.material.color.copy( this.light.color );
+
+		}
+
+		/*
+		var d = this.light.distance;
+
+		if ( d === 0.0 ) {
+
+			this.lightDistance.visible = false;
+
+		} else {
+
+			this.lightDistance.visible = true;
+			this.lightDistance.scale.set( d, d, d );
+
+		}
+		*/
+
+	};
+
+	/**
+	 * @author abelnation / http://github.com/abelnation
+	 * @author Mugen87 / http://github.com/Mugen87
+	 * @author WestLangley / http://github.com/WestLangley
+	 *
+	 *  This helper must be added as a child of the light
+	 */
+
+	function RectAreaLightHelper( light, color ) {
+
+		this.type = 'RectAreaLightHelper';
+
+		this.light = light;
+
+		this.color = color; // optional hardwired color for the helper
+
+		var positions = [ 1, 1, 0, - 1, 1, 0, - 1, - 1, 0, 1, - 1, 0, 1, 1, 0 ];
+
+		var geometry = new BufferGeometry();
+		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
+		geometry.computeBoundingSphere();
+
+		var material = new LineBasicMaterial( { fog: false } );
+
+		Line.call( this, geometry, material );
+
+		//
+
+		var positions2 = [ 1, 1, 0, - 1, 1, 0, - 1, - 1, 0, 1, 1, 0, - 1, - 1, 0, 1, - 1, 0 ];
+
+		var geometry2 = new BufferGeometry();
+		geometry2.addAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
+		geometry2.computeBoundingSphere();
+
+		this.add( new Mesh( geometry2, new MeshBasicMaterial( { side: BackSide, fog: false } ) ) );
+
+		this.update();
+
+	}
+
+	RectAreaLightHelper.prototype = Object.create( Line.prototype );
+	RectAreaLightHelper.prototype.constructor = RectAreaLightHelper;
+
+	RectAreaLightHelper.prototype.update = function () {
+
+		this.scale.set( 0.5 * this.light.width, 0.5 * this.light.height, 1 );
+
+		if ( this.color !== undefined ) {
+
+			this.material.color.set( this.color );
+			this.children[ 0 ].material.color.set( this.color );
+
+		} else {
+
+			this.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );
+
+			// prevent hue shift
+			var c = this.material.color;
+			var max = Math.max( c.r, c.g, c.b );
+			if ( max > 1 ) c.multiplyScalar( 1 / max );
+
+			this.children[ 0 ].material.color.copy( this.material.color );
+
+		}
+
+	};
+
+	RectAreaLightHelper.prototype.dispose = function () {
+
+		this.geometry.dispose();
+		this.material.dispose();
+		this.children[ 0 ].geometry.dispose();
+		this.children[ 0 ].material.dispose();
+
+	};
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author Mugen87 / https://github.com/Mugen87
+	 */
+
+	function HemisphereLightHelper( light, size, color ) {
+
+		Object3D.call( this );
+
+		this.light = light;
+		this.light.updateMatrixWorld();
+
+		this.matrix = light.matrixWorld;
+		this.matrixAutoUpdate = false;
+
+		this.color = color;
+
+		var geometry = new OctahedronBufferGeometry( size );
+		geometry.rotateY( Math.PI * 0.5 );
+
+		this.material = new MeshBasicMaterial( { wireframe: true, fog: false } );
+		if ( this.color === undefined ) this.material.vertexColors = VertexColors;
+
+		var position = geometry.getAttribute( 'position' );
+		var colors = new Float32Array( position.count * 3 );
+
+		geometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) );
+
+		this.add( new Mesh( geometry, this.material ) );
+
+		this.update();
+
+	}
+
+	HemisphereLightHelper.prototype = Object.create( Object3D.prototype );
+	HemisphereLightHelper.prototype.constructor = HemisphereLightHelper;
+
+	HemisphereLightHelper.prototype.dispose = function () {
+
+		this.children[ 0 ].geometry.dispose();
+		this.children[ 0 ].material.dispose();
+
+	};
+
+	HemisphereLightHelper.prototype.update = function () {
+
+		var vector = new Vector3();
+
+		var color1 = new Color();
+		var color2 = new Color();
+
+		return function update() {
+
+			var mesh = this.children[ 0 ];
+
+			if ( this.color !== undefined ) {
+
+				this.material.color.set( this.color );
+
+			} else {
+
+				var colors = mesh.geometry.getAttribute( 'color' );
+
+				color1.copy( this.light.color );
+				color2.copy( this.light.groundColor );
+
+				for ( var i = 0, l = colors.count; i < l; i ++ ) {
+
+					var color = ( i < ( l / 2 ) ) ? color1 : color2;
+
+					colors.setXYZ( i, color.r, color.g, color.b );
+
+				}
+
+				colors.needsUpdate = true;
+
+			}
+
+			mesh.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );
+
+		};
+
+	}();
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function LightProbeHelper( lightProbe, size ) {
+
+		this.lightProbe = lightProbe;
+
+		this.size = size;
+
+		var defines = {};
+		defines[ 'GAMMA_OUTPUT' ] = "";
+
+		// material
+		var material = new ShaderMaterial( {
+
+			defines: defines,
+
+			uniforms: {
+
+				sh: { value: this.lightProbe.sh.coefficients }, // by reference
+
+				intensity: { value: this.lightProbe.intensity }
+
+			},
+
+			vertexShader: [
+
+				'varying vec3 vNormal;',
+
+				'void main() {',
+
+				'	vNormal = normalize( normalMatrix * normal );',
+
+				'	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',
+
+				'}',
+
+			].join( '\n' ),
+
+			fragmentShader: [
+
+				'#define RECIPROCAL_PI 0.318309886',
+
+				'vec3 inverseTransformDirection( in vec3 normal, in mat4 matrix ) {',
+
+				'	// matrix is assumed to be orthogonal',
+
+				'	return normalize( ( vec4( normal, 0.0 ) * matrix ).xyz );',
+
+				'}',
+
+				'vec3 linearToOutput( in vec3 a ) {',
+
+				'	#ifdef GAMMA_OUTPUT',
+
+				'		return pow( a, vec3( 1.0 / float( GAMMA_FACTOR ) ) );',
+
+				'	#else',
+
+				'		return a;',
+
+				'	#endif',
+
+				'}',
+
+				'// source: https://graphics.stanford.edu/papers/envmap/envmap.pdf',
+				'vec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {',
+
+				'	// normal is assumed to have unit length',
+
+				'	float x = normal.x, y = normal.y, z = normal.z;',
+
+				'	// band 0',
+				'	vec3 result = shCoefficients[ 0 ] * 0.886227;',
+
+				'	// band 1',
+				'	result += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;',
+				'	result += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;',
+				'	result += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;',
+
+				'	// band 2',
+				'	result += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;',
+				'	result += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;',
+				'	result += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );',
+				'	result += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;',
+				'	result += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );',
+
+				'	return result;',
+
+				'}',
+
+				'uniform vec3 sh[ 9 ]; // sh coefficients',
+
+				'uniform float intensity; // light probe intensity',
+
+				'varying vec3 vNormal;',
+
+				'void main() {',
+
+				'	vec3 normal = normalize( vNormal );',
+
+				'	vec3 worldNormal = inverseTransformDirection( normal, viewMatrix );',
+
+				'	vec3 irradiance = shGetIrradianceAt( worldNormal, sh );',
+
+				'	vec3 outgoingLight = RECIPROCAL_PI * irradiance * intensity;',
+
+				'	outgoingLight = linearToOutput( outgoingLight );',
+
+				'	gl_FragColor = vec4( outgoingLight, 1.0 );',
+
+				'}'
+
+			].join( '\n' )
+
+		} );
+
+		var geometry = new SphereBufferGeometry( 1, 32, 16 );
+
+		Mesh.call( this, geometry, material );
+
+		this.onBeforeRender();
+
+	}
+
+	LightProbeHelper.prototype = Object.create( Mesh.prototype );
+	LightProbeHelper.prototype.constructor = LightProbeHelper;
+
+	LightProbeHelper.prototype.dispose = function () {
+
+		this.geometry.dispose();
+		this.material.dispose();
+
+	};
+
+	LightProbeHelper.prototype.onBeforeRender = function () {
+
+		return function update() {
+
+			this.position.copy( this.lightProbe.position );
+
+			this.scale.set( 1, 1, 1 ).multiplyScalar( this.size );
+
+			this.material.uniforms.intensity.value = this.lightProbe.intensity;
+
+		};
+
+	}();
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function GridHelper( size, divisions, color1, color2 ) {
+
+		size = size || 10;
+		divisions = divisions || 10;
+		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
+		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );
+
+		var center = divisions / 2;
+		var step = size / divisions;
+		var halfSize = size / 2;
+
+		var vertices = [], colors = [];
+
+		for ( var i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {
+
+			vertices.push( - halfSize, 0, k, halfSize, 0, k );
+			vertices.push( k, 0, - halfSize, k, 0, halfSize );
+
+			var color = i === center ? color1 : color2;
+
+			color.toArray( colors, j ); j += 3;
+			color.toArray( colors, j ); j += 3;
+			color.toArray( colors, j ); j += 3;
+			color.toArray( colors, j ); j += 3;
+
+		}
+
+		var geometry = new BufferGeometry();
+		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+		var material = new LineBasicMaterial( { vertexColors: VertexColors } );
+
+		LineSegments.call( this, geometry, material );
+
+	}
+
+	GridHelper.prototype = Object.assign( Object.create( LineSegments.prototype ), {
+
+		constructor: GridHelper,
+
+		copy: function ( source ) {
+
+			LineSegments.prototype.copy.call( this, source );
+
+			this.geometry.copy( source.geometry );
+			this.material.copy( source.material );
+
+			return this;
+
+		},
+
+		clone: function () {
+
+			return new this.constructor().copy( this );
+
+		}
+
+	} );
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author Mugen87 / http://github.com/Mugen87
+	 * @author Hectate / http://www.github.com/Hectate
+	 */
+
+	function PolarGridHelper( radius, radials, circles, divisions, color1, color2 ) {
+
+		radius = radius || 10;
+		radials = radials || 16;
+		circles = circles || 8;
+		divisions = divisions || 64;
+		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
+		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );
+
+		var vertices = [];
+		var colors = [];
+
+		var x, z;
+		var v, i, j, r, color;
+
+		// create the radials
+
+		for ( i = 0; i <= radials; i ++ ) {
+
+			v = ( i / radials ) * ( Math.PI * 2 );
+
+			x = Math.sin( v ) * radius;
+			z = Math.cos( v ) * radius;
+
+			vertices.push( 0, 0, 0 );
+			vertices.push( x, 0, z );
+
+			color = ( i & 1 ) ? color1 : color2;
+
+			colors.push( color.r, color.g, color.b );
+			colors.push( color.r, color.g, color.b );
+
+		}
+
+		// create the circles
+
+		for ( i = 0; i <= circles; i ++ ) {
+
+			color = ( i & 1 ) ? color1 : color2;
+
+			r = radius - ( radius / circles * i );
+
+			for ( j = 0; j < divisions; j ++ ) {
+
+				// first vertex
+
+				v = ( j / divisions ) * ( Math.PI * 2 );
+
+				x = Math.sin( v ) * r;
+				z = Math.cos( v ) * r;
+
+				vertices.push( x, 0, z );
+				colors.push( color.r, color.g, color.b );
+
+				// second vertex
+
+				v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );
+
+				x = Math.sin( v ) * r;
+				z = Math.cos( v ) * r;
+
+				vertices.push( x, 0, z );
+				colors.push( color.r, color.g, color.b );
+
+			}
+
+		}
+
+		var geometry = new BufferGeometry();
+		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+		var material = new LineBasicMaterial( { vertexColors: VertexColors } );
+
+		LineSegments.call( this, geometry, material );
+
+	}
+
+	PolarGridHelper.prototype = Object.create( LineSegments.prototype );
+	PolarGridHelper.prototype.constructor = PolarGridHelper;
+
+	/**
+	 * @author Mugen87 / http://github.com/Mugen87
+	 */
+
+	function PositionalAudioHelper( audio, range, divisionsInnerAngle, divisionsOuterAngle ) {
+
+		this.audio = audio;
+		this.range = range || 1;
+		this.divisionsInnerAngle = divisionsInnerAngle || 16;
+		this.divisionsOuterAngle = divisionsOuterAngle || 2;
+
+		var geometry = new BufferGeometry();
+		var divisions = this.divisionsInnerAngle + this.divisionsOuterAngle * 2;
+		var positions = new Float32Array( ( divisions * 3 + 3 ) * 3 );
+		geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );
+
+		var materialInnerAngle = new LineBasicMaterial( { color: 0x00ff00 } );
+		var materialOuterAngle = new LineBasicMaterial( { color: 0xffff00 } );
+
+		Line.call( this, geometry, [ materialOuterAngle, materialInnerAngle ] );
+
+		this.update();
+
+	}
+
+	PositionalAudioHelper.prototype = Object.create( Line.prototype );
+	PositionalAudioHelper.prototype.constructor = PositionalAudioHelper;
+
+	PositionalAudioHelper.prototype.update = function () {
+
+		var audio = this.audio;
+		var range = this.range;
+		var divisionsInnerAngle = this.divisionsInnerAngle;
+		var divisionsOuterAngle = this.divisionsOuterAngle;
+
+		var coneInnerAngle = _Math.degToRad( audio.panner.coneInnerAngle );
+		var coneOuterAngle = _Math.degToRad( audio.panner.coneOuterAngle );
+
+		var halfConeInnerAngle = coneInnerAngle / 2;
+		var halfConeOuterAngle = coneOuterAngle / 2;
+
+		var start = 0;
+		var count = 0;
+		var i, stride;
+
+		var geometry = this.geometry;
+		var positionAttribute = geometry.attributes.position;
+
+		geometry.clearGroups();
+
+		//
+
+		function generateSegment( from, to, divisions, materialIndex ) {
+
+			var step = ( to - from ) / divisions;
+
+			positionAttribute.setXYZ( start, 0, 0, 0 );
+			count ++;
+
+			for ( i = from; i < to; i += step ) {
+
+				stride = start + count;
+
+				positionAttribute.setXYZ( stride, Math.sin( i ) * range, 0, Math.cos( i ) * range );
+				positionAttribute.setXYZ( stride + 1, Math.sin( Math.min( i + step, to ) ) * range, 0, Math.cos( Math.min( i + step, to ) ) * range );
+				positionAttribute.setXYZ( stride + 2, 0, 0, 0 );
+
+				count += 3;
+
+			}
+
+			geometry.addGroup( start, count, materialIndex );
+
+			start += count;
+			count = 0;
+
+		}
+
+		//
+
+		generateSegment( - halfConeOuterAngle, - halfConeInnerAngle, divisionsOuterAngle, 0 );
+		generateSegment( - halfConeInnerAngle, halfConeInnerAngle, divisionsInnerAngle, 1 );
+		generateSegment( halfConeInnerAngle, halfConeOuterAngle, divisionsOuterAngle, 0 );
+
+		//
+
+		positionAttribute.needsUpdate = true;
+
+		if ( coneInnerAngle === coneOuterAngle ) this.material[ 0 ].visible = false;
+
+	};
+
+	PositionalAudioHelper.prototype.dispose = function () {
+
+		this.geometry.dispose();
+		this.material[ 0 ].dispose();
+		this.material[ 1 ].dispose();
+
+	};
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function FaceNormalsHelper( object, size, hex, linewidth ) {
+
+		// FaceNormalsHelper only supports THREE.Geometry
+
+		this.object = object;
+
+		this.size = ( size !== undefined ) ? size : 1;
+
+		var color = ( hex !== undefined ) ? hex : 0xffff00;
+
+		var width = ( linewidth !== undefined ) ? linewidth : 1;
+
+		//
+
+		var nNormals = 0;
+
+		var objGeometry = this.object.geometry;
+
+		if ( objGeometry && objGeometry.isGeometry ) {
+
+			nNormals = objGeometry.faces.length;
+
+		} else {
+
+			console.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );
+
+		}
+
+		//
+
+		var geometry = new BufferGeometry();
+
+		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );
+
+		geometry.addAttribute( 'position', positions );
+
+		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );
+
+		//
+
+		this.matrixAutoUpdate = false;
+		this.update();
+
+	}
+
+	FaceNormalsHelper.prototype = Object.create( LineSegments.prototype );
+	FaceNormalsHelper.prototype.constructor = FaceNormalsHelper;
+
+	FaceNormalsHelper.prototype.update = ( function () {
+
+		var v1 = new Vector3();
+		var v2 = new Vector3();
+		var normalMatrix = new Matrix3();
+
+		return function update() {
+
+			this.object.updateMatrixWorld( true );
+
+			normalMatrix.getNormalMatrix( this.object.matrixWorld );
+
+			var matrixWorld = this.object.matrixWorld;
+
+			var position = this.geometry.attributes.position;
+
+			//
+
+			var objGeometry = this.object.geometry;
+
+			var vertices = objGeometry.vertices;
+
+			var faces = objGeometry.faces;
+
+			var idx = 0;
+
+			for ( var i = 0, l = faces.length; i < l; i ++ ) {
+
+				var face = faces[ i ];
+
+				var normal = face.normal;
+
+				v1.copy( vertices[ face.a ] )
+					.add( vertices[ face.b ] )
+					.add( vertices[ face.c ] )
+					.divideScalar( 3 )
+					.applyMatrix4( matrixWorld );
+
+				v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
+
+				position.setXYZ( idx, v1.x, v1.y, v1.z );
+
+				idx = idx + 1;
+
+				position.setXYZ( idx, v2.x, v2.y, v2.z );
+
+				idx = idx + 1;
+
+			}
+
+			position.needsUpdate = true;
+
+		};
+
+	}() );
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function DirectionalLightHelper( light, size, color ) {
+
+		Object3D.call( this );
+
+		this.light = light;
+		this.light.updateMatrixWorld();
+
+		this.matrix = light.matrixWorld;
+		this.matrixAutoUpdate = false;
+
+		this.color = color;
+
+		if ( size === undefined ) size = 1;
+
+		var geometry = new BufferGeometry();
+		geometry.addAttribute( 'position', new Float32BufferAttribute( [
+			- size, size, 0,
+			size, size, 0,
+			size, - size, 0,
+			- size, - size, 0,
+			- size, size, 0
+		], 3 ) );
+
+		var material = new LineBasicMaterial( { fog: false } );
+
+		this.lightPlane = new Line( geometry, material );
+		this.add( this.lightPlane );
+
+		geometry = new BufferGeometry();
+		geometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );
+
+		this.targetLine = new Line( geometry, material );
+		this.add( this.targetLine );
+
+		this.update();
+
+	}
+
+	DirectionalLightHelper.prototype = Object.create( Object3D.prototype );
+	DirectionalLightHelper.prototype.constructor = DirectionalLightHelper;
+
+	DirectionalLightHelper.prototype.dispose = function () {
+
+		this.lightPlane.geometry.dispose();
+		this.lightPlane.material.dispose();
+		this.targetLine.geometry.dispose();
+		this.targetLine.material.dispose();
+
+	};
+
+	DirectionalLightHelper.prototype.update = function () {
+
+		var v1 = new Vector3();
+		var v2 = new Vector3();
+		var v3 = new Vector3();
+
+		return function update() {
+
+			v1.setFromMatrixPosition( this.light.matrixWorld );
+			v2.setFromMatrixPosition( this.light.target.matrixWorld );
+			v3.subVectors( v2, v1 );
+
+			this.lightPlane.lookAt( v2 );
+
+			if ( this.color !== undefined ) {
+
+				this.lightPlane.material.color.set( this.color );
+				this.targetLine.material.color.set( this.color );
+
+			} else {
+
+				this.lightPlane.material.color.copy( this.light.color );
+				this.targetLine.material.color.copy( this.light.color );
+
+			}
+
+			this.targetLine.lookAt( v2 );
+			this.targetLine.scale.z = v3.length();
+
+		};
+
+	}();
+
+	/**
+	 * @author alteredq / http://alteredqualia.com/
+	 * @author Mugen87 / https://github.com/Mugen87
+	 *
+	 *	- shows frustum, line of sight and up of the camera
+	 *	- suitable for fast updates
+	 * 	- based on frustum visualization in lightgl.js shadowmap example
+	 *		http://evanw.github.com/lightgl.js/tests/shadowmap.html
+	 */
+
+	function CameraHelper( camera ) {
+
+		var geometry = new BufferGeometry();
+		var material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } );
+
+		var vertices = [];
+		var colors = [];
+
+		var pointMap = {};
+
+		// colors
+
+		var colorFrustum = new Color( 0xffaa00 );
+		var colorCone = new Color( 0xff0000 );
+		var colorUp = new Color( 0x00aaff );
+		var colorTarget = new Color( 0xffffff );
+		var colorCross = new Color( 0x333333 );
+
+		// near
+
+		addLine( 'n1', 'n2', colorFrustum );
+		addLine( 'n2', 'n4', colorFrustum );
+		addLine( 'n4', 'n3', colorFrustum );
+		addLine( 'n3', 'n1', colorFrustum );
+
+		// far
+
+		addLine( 'f1', 'f2', colorFrustum );
+		addLine( 'f2', 'f4', colorFrustum );
+		addLine( 'f4', 'f3', colorFrustum );
+		addLine( 'f3', 'f1', colorFrustum );
+
+		// sides
+
+		addLine( 'n1', 'f1', colorFrustum );
+		addLine( 'n2', 'f2', colorFrustum );
+		addLine( 'n3', 'f3', colorFrustum );
+		addLine( 'n4', 'f4', colorFrustum );
+
+		// cone
+
+		addLine( 'p', 'n1', colorCone );
+		addLine( 'p', 'n2', colorCone );
+		addLine( 'p', 'n3', colorCone );
+		addLine( 'p', 'n4', colorCone );
+
+		// up
+
+		addLine( 'u1', 'u2', colorUp );
+		addLine( 'u2', 'u3', colorUp );
+		addLine( 'u3', 'u1', colorUp );
+
+		// target
+
+		addLine( 'c', 't', colorTarget );
+		addLine( 'p', 'c', colorCross );
+
+		// cross
+
+		addLine( 'cn1', 'cn2', colorCross );
+		addLine( 'cn3', 'cn4', colorCross );
+
+		addLine( 'cf1', 'cf2', colorCross );
+		addLine( 'cf3', 'cf4', colorCross );
+
+		function addLine( a, b, color ) {
+
+			addPoint( a, color );
+			addPoint( b, color );
+
+		}
+
+		function addPoint( id, color ) {
+
+			vertices.push( 0, 0, 0 );
+			colors.push( color.r, color.g, color.b );
+
+			if ( pointMap[ id ] === undefined ) {
+
+				pointMap[ id ] = [];
+
+			}
+
+			pointMap[ id ].push( ( vertices.length / 3 ) - 1 );
+
+		}
+
+		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+		LineSegments.call( this, geometry, material );
+
+		this.camera = camera;
+		if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();
+
+		this.matrix = camera.matrixWorld;
+		this.matrixAutoUpdate = false;
+
+		this.pointMap = pointMap;
+
+		this.update();
+
+	}
+
+	CameraHelper.prototype = Object.create( LineSegments.prototype );
+	CameraHelper.prototype.constructor = CameraHelper;
+
+	CameraHelper.prototype.update = function () {
+
+		var geometry, pointMap;
+
+		var vector = new Vector3();
+		var camera = new Camera();
+
+		function setPoint( point, x, y, z ) {
+
+			vector.set( x, y, z ).unproject( camera );
+
+			var points = pointMap[ point ];
+
+			if ( points !== undefined ) {
+
+				var position = geometry.getAttribute( 'position' );
+
+				for ( var i = 0, l = points.length; i < l; i ++ ) {
+
+					position.setXYZ( points[ i ], vector.x, vector.y, vector.z );
+
+				}
+
+			}
+
+		}
+
+		return function update() {
+
+			geometry = this.geometry;
+			pointMap = this.pointMap;
+
+			var w = 1, h = 1;
+
+			// we need just camera projection matrix inverse
+			// world matrix must be identity
+
+			camera.projectionMatrixInverse.copy( this.camera.projectionMatrixInverse );
+
+			// center / target
+
+			setPoint( 'c', 0, 0, - 1 );
+			setPoint( 't', 0, 0, 1 );
+
+			// near
+
+			setPoint( 'n1', - w, - h, - 1 );
+			setPoint( 'n2', w, - h, - 1 );
+			setPoint( 'n3', - w, h, - 1 );
+			setPoint( 'n4', w, h, - 1 );
+
+			// far
+
+			setPoint( 'f1', - w, - h, 1 );
+			setPoint( 'f2', w, - h, 1 );
+			setPoint( 'f3', - w, h, 1 );
+			setPoint( 'f4', w, h, 1 );
+
+			// up
+
+			setPoint( 'u1', w * 0.7, h * 1.1, - 1 );
+			setPoint( 'u2', - w * 0.7, h * 1.1, - 1 );
+			setPoint( 'u3', 0, h * 2, - 1 );
+
+			// cross
+
+			setPoint( 'cf1', - w, 0, 1 );
+			setPoint( 'cf2', w, 0, 1 );
+			setPoint( 'cf3', 0, - h, 1 );
+			setPoint( 'cf4', 0, h, 1 );
+
+			setPoint( 'cn1', - w, 0, - 1 );
+			setPoint( 'cn2', w, 0, - 1 );
+			setPoint( 'cn3', 0, - h, - 1 );
+			setPoint( 'cn4', 0, h, - 1 );
+
+			geometry.getAttribute( 'position' ).needsUpdate = true;
+
+		};
+
+	}();
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 * @author Mugen87 / http://github.com/Mugen87
+	 */
+
+	function BoxHelper( object, color ) {
+
+		this.object = object;
+
+		if ( color === undefined ) color = 0xffff00;
+
+		var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
+		var positions = new Float32Array( 8 * 3 );
+
+		var geometry = new BufferGeometry();
+		geometry.setIndex( new BufferAttribute( indices, 1 ) );
+		geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );
+
+		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );
+
+		this.matrixAutoUpdate = false;
+
+		this.update();
+
+	}
+
+	BoxHelper.prototype = Object.create( LineSegments.prototype );
+	BoxHelper.prototype.constructor = BoxHelper;
+
+	BoxHelper.prototype.update = ( function () {
+
+		var box = new Box3();
+
+		return function update( object ) {
+
+			if ( object !== undefined ) {
+
+				console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );
+
+			}
+
+			if ( this.object !== undefined ) {
+
+				box.setFromObject( this.object );
+
+			}
+
+			if ( box.isEmpty() ) return;
+
+			var min = box.min;
+			var max = box.max;
+
+			/*
+			  5____4
+			1/___0/|
+			| 6__|_7
+			2/___3/
+
+			0: max.x, max.y, max.z
+			1: min.x, max.y, max.z
+			2: min.x, min.y, max.z
+			3: max.x, min.y, max.z
+			4: max.x, max.y, min.z
+			5: min.x, max.y, min.z
+			6: min.x, min.y, min.z
+			7: max.x, min.y, min.z
+			*/
+
+			var position = this.geometry.attributes.position;
+			var array = position.array;
+
+			array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;
+			array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;
+			array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;
+			array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
+			array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
+			array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
+			array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
+			array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;
+
+			position.needsUpdate = true;
+
+			this.geometry.computeBoundingSphere();
+
+		};
+
+	} )();
+
+	BoxHelper.prototype.setFromObject = function ( object ) {
+
+		this.object = object;
+		this.update();
+
+		return this;
+
+	};
+
+	BoxHelper.prototype.copy = function ( source ) {
+
+		LineSegments.prototype.copy.call( this, source );
+
+		this.object = source.object;
+
+		return this;
+
+	};
+
+	BoxHelper.prototype.clone = function () {
+
+		return new this.constructor().copy( this );
+
+	};
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function Box3Helper( box, hex ) {
+
+		this.type = 'Box3Helper';
+
+		this.box = box;
+
+		var color = ( hex !== undefined ) ? hex : 0xffff00;
+
+		var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
+
+		var positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ];
+
+		var geometry = new BufferGeometry();
+
+		geometry.setIndex( new BufferAttribute( indices, 1 ) );
+
+		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
+
+		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );
+
+		this.geometry.computeBoundingSphere();
+
+	}
+
+	Box3Helper.prototype = Object.create( LineSegments.prototype );
+	Box3Helper.prototype.constructor = Box3Helper;
+
+	Box3Helper.prototype.updateMatrixWorld = function ( force ) {
+
+		var box = this.box;
+
+		if ( box.isEmpty() ) return;
+
+		box.getCenter( this.position );
+
+		box.getSize( this.scale );
+
+		this.scale.multiplyScalar( 0.5 );
+
+		Object3D.prototype.updateMatrixWorld.call( this, force );
+
+	};
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 */
+
+	function PlaneHelper( plane, size, hex ) {
+
+		this.type = 'PlaneHelper';
+
+		this.plane = plane;
+
+		this.size = ( size === undefined ) ? 1 : size;
+
+		var color = ( hex !== undefined ) ? hex : 0xffff00;
+
+		var positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ];
+
+		var geometry = new BufferGeometry();
+		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
+		geometry.computeBoundingSphere();
+
+		Line.call( this, geometry, new LineBasicMaterial( { color: color } ) );
+
+		//
+
+		var positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ];
+
+		var geometry2 = new BufferGeometry();
+		geometry2.addAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
+		geometry2.computeBoundingSphere();
+
+		this.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false } ) ) );
+
+	}
+
+	PlaneHelper.prototype = Object.create( Line.prototype );
+	PlaneHelper.prototype.constructor = PlaneHelper;
+
+	PlaneHelper.prototype.updateMatrixWorld = function ( force ) {
+
+		var scale = - this.plane.constant;
+
+		if ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter
+
+		this.scale.set( 0.5 * this.size, 0.5 * this.size, scale );
+
+		this.children[ 0 ].material.side = ( scale < 0 ) ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here
+
+		this.lookAt( this.plane.normal );
+
+		Object3D.prototype.updateMatrixWorld.call( this, force );
+
+	};
+
+	/**
+	 * @author WestLangley / http://github.com/WestLangley
+	 * @author zz85 / http://github.com/zz85
+	 * @author bhouston / http://clara.io
+	 *
+	 * Creates an arrow for visualizing directions
+	 *
+	 * Parameters:
+	 *  dir - Vector3
+	 *  origin - Vector3
+	 *  length - Number
+	 *  color - color in hex value
+	 *  headLength - Number
+	 *  headWidth - Number
+	 */
+
+	var lineGeometry, coneGeometry;
+
+	function ArrowHelper( dir, origin, length, color, headLength, headWidth ) {
+
+		// dir is assumed to be normalized
+
+		Object3D.call( this );
+
+		if ( dir === undefined ) dir = new Vector3( 0, 0, 1 );
+		if ( origin === undefined ) origin = new Vector3( 0, 0, 0 );
+		if ( length === undefined ) length = 1;
+		if ( color === undefined ) color = 0xffff00;
+		if ( headLength === undefined ) headLength = 0.2 * length;
+		if ( headWidth === undefined ) headWidth = 0.2 * headLength;
+
+		if ( lineGeometry === undefined ) {
+
+			lineGeometry = new BufferGeometry();
+			lineGeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );
+
+			coneGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 );
+			coneGeometry.translate( 0, - 0.5, 0 );
+
+		}
+
+		this.position.copy( origin );
+
+		this.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) );
+		this.line.matrixAutoUpdate = false;
+		this.add( this.line );
+
+		this.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) );
+		this.cone.matrixAutoUpdate = false;
+		this.add( this.cone );
+
+		this.setDirection( dir );
+		this.setLength( length, headLength, headWidth );
+
+	}
+
+	ArrowHelper.prototype = Object.create( Object3D.prototype );
+	ArrowHelper.prototype.constructor = ArrowHelper;
+
+	ArrowHelper.prototype.setDirection = ( function () {
+
+		var axis = new Vector3();
+		var radians;
+
+		return function setDirection( dir ) {
+
+			// dir is assumed to be normalized
+
+			if ( dir.y > 0.99999 ) {
+
+				this.quaternion.set( 0, 0, 0, 1 );
+
+			} else if ( dir.y < - 0.99999 ) {
+
+				this.quaternion.set( 1, 0, 0, 0 );
+
+			} else {
+
+				axis.set( dir.z, 0, - dir.x ).normalize();
+
+				radians = Math.acos( dir.y );
+
+				this.quaternion.setFromAxisAngle( axis, radians );
+
+			}
+
+		};
+
+	}() );
+
+	ArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {
+
+		if ( headLength === undefined ) headLength = 0.2 * length;
+		if ( headWidth === undefined ) headWidth = 0.2 * headLength;
+
+		this.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );
+		this.line.updateMatrix();
+
+		this.cone.scale.set( headWidth, headLength, headWidth );
+		this.cone.position.y = length;
+		this.cone.updateMatrix();
+
+	};
+
+	ArrowHelper.prototype.setColor = function ( color ) {
+
+		this.line.material.color.copy( color );
+		this.cone.material.color.copy( color );
+
+	};
+
+	ArrowHelper.prototype.copy = function ( source ) {
+
+		Object3D.prototype.copy.call( this, source, false );
+
+		this.line.copy( source.line );
+		this.cone.copy( source.cone );
+
+		return this;
+
+	};
+
+	ArrowHelper.prototype.clone = function () {
+
+		return new this.constructor().copy( this );
+
+	};
+
+	/**
+	 * @author sroucheray / http://sroucheray.org/
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function AxesHelper( size ) {
+
+		size = size || 1;
+
+		var vertices = [
+			0, 0, 0,	size, 0, 0,
+			0, 0, 0,	0, size, 0,
+			0, 0, 0,	0, 0, size
+		];
+
+		var colors = [
+			1, 0, 0,	1, 0.6, 0,
+			0, 1, 0,	0.6, 1, 0,
+			0, 0, 1,	0, 0.6, 1
+		];
+
+		var geometry = new BufferGeometry();
+		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+		var material = new LineBasicMaterial( { vertexColors: VertexColors } );
+
+		LineSegments.call( this, geometry, material );
+
+	}
+
+	AxesHelper.prototype = Object.create( LineSegments.prototype );
+	AxesHelper.prototype.constructor = AxesHelper;
+
+	/**
+	 * @author mrdoob / http://mrdoob.com/
+	 */
+
+	function Face4( a, b, c, d, normal, color, materialIndex ) {
+
+		console.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );
+		return new Face3( a, b, c, normal, color, materialIndex );
+
+	}
+
+	var LineStrip = 0;
+
+	var LinePieces = 1;
+
+	function MeshFaceMaterial( materials ) {
+
+		console.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' );
+		return materials;
+
+	}
+
+	function MultiMaterial( materials ) {
+
+		if ( materials === undefined ) materials = [];
+
+		console.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' );
+		materials.isMultiMaterial = true;
+		materials.materials = materials;
+		materials.clone = function () {
+
+			return materials.slice();
+
+		};
+		return materials;
+
+	}
+
+	function PointCloud( geometry, material ) {
+
+		console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );
+		return new Points( geometry, material );
+
+	}
+
+	function Particle( material ) {
+
+		console.warn( 'THREE.Particle has been renamed to THREE.Sprite.' );
+		return new Sprite( material );
+
+	}
+
+	function ParticleSystem( geometry, material ) {
+
+		console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );
+		return new Points( geometry, material );
+
+	}
+
+	function PointCloudMaterial( parameters ) {
+
+		console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );
+		return new PointsMaterial( parameters );
+
+	}
+
+	function ParticleBasicMaterial( parameters ) {
+
+		console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );
+		return new PointsMaterial( parameters );
+
+	}
+
+	function ParticleSystemMaterial( parameters ) {
+
+		console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );
+		return new PointsMaterial( parameters );
+
+	}
+
+	function Vertex( x, y, z ) {
+
+		console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );
+		return new Vector3( x, y, z );
+
+	}
+
+	//
+
+	function DynamicBufferAttribute( array, itemSize ) {
+
+		console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );
+		return new BufferAttribute( array, itemSize ).setDynamic( true );
+
+	}
+
+	function Int8Attribute( array, itemSize ) {
+
+		console.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' );
+		return new Int8BufferAttribute( array, itemSize );
+
+	}
+
+	function Uint8Attribute( array, itemSize ) {
+
+		console.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' );
+		return new Uint8BufferAttribute( array, itemSize );
+
+	}
+
+	function Uint8ClampedAttribute( array, itemSize ) {
+
+		console.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' );
+		return new Uint8ClampedBufferAttribute( array, itemSize );
+
+	}
+
+	function Int16Attribute( array, itemSize ) {
+
+		console.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' );
+		return new Int16BufferAttribute( array, itemSize );
+
+	}
+
+	function Uint16Attribute( array, itemSize ) {
+
+		console.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' );
+		return new Uint16BufferAttribute( array, itemSize );
+
+	}
+
+	function Int32Attribute( array, itemSize ) {
+
+		console.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' );
+		return new Int32BufferAttribute( array, itemSize );
+
+	}
+
+	function Uint32Attribute( array, itemSize ) {
+
+		console.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' );
+		return new Uint32BufferAttribute( array, itemSize );
+
+	}
+
+	function Float32Attribute( array, itemSize ) {
+
+		console.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' );
+		return new Float32BufferAttribute( array, itemSize );
+
+	}
+
+	function Float64Attribute( array, itemSize ) {
+
+		console.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' );
+		return new Float64BufferAttribute( array, itemSize );
+
+	}
+
+	//
+
+	Curve.create = function ( construct, getPoint ) {
+
+		console.log( 'THREE.Curve.create() has been deprecated' );
+
+		construct.prototype = Object.create( Curve.prototype );
+		construct.prototype.constructor = construct;
+		construct.prototype.getPoint = getPoint;
+
+		return construct;
+
+	};
+
+	//
+
+	Object.assign( CurvePath.prototype, {
+
+		createPointsGeometry: function ( divisions ) {
+
+			console.warn( 'THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
+
+			// generate geometry from path points (for Line or Points objects)
+
+			var pts = this.getPoints( divisions );
+			return this.createGeometry( pts );
+
+		},
+
+		createSpacedPointsGeometry: function ( divisions ) {
+
+			console.warn( 'THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
+
+			// generate geometry from equidistant sampling along the path
+
+			var pts = this.getSpacedPoints( divisions );
+			return this.createGeometry( pts );
+
+		},
+
+		createGeometry: function ( points ) {
+
+			console.warn( 'THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
+
+			var geometry = new Geometry();
+
+			for ( var i = 0, l = points.length; i < l; i ++ ) {
+
+				var point = points[ i ];
+				geometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );
+
+			}
+
+			return geometry;
+
+		}
+
+	} );
+
+	//
+
+	Object.assign( Path.prototype, {
+
+		fromPoints: function ( points ) {
+
+			console.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' );
+			this.setFromPoints( points );
+
+		}
+
+	} );
+
+	//
+
+	function ClosedSplineCurve3( points ) {
+
+		console.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );
+
+		CatmullRomCurve3.call( this, points );
+		this.type = 'catmullrom';
+		this.closed = true;
+
+	}
+
+	ClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );
+
+	//
+
+	function SplineCurve3( points ) {
+
+		console.warn( 'THREE.SplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );
+
+		CatmullRomCurve3.call( this, points );
+		this.type = 'catmullrom';
+
+	}
+
+	SplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );
+
+	//
+
+	function Spline( points ) {
+
+		console.warn( 'THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.' );
+
+		CatmullRomCurve3.call( this, points );
+		this.type = 'catmullrom';
+
+	}
+
+	Spline.prototype = Object.create( CatmullRomCurve3.prototype );
+
+	Object.assign( Spline.prototype, {
+
+		initFromArray: function ( /* a */ ) {
+
+			console.error( 'THREE.Spline: .initFromArray() has been removed.' );
+
+		},
+		getControlPointsArray: function ( /* optionalTarget */ ) {
+
+			console.error( 'THREE.Spline: .getControlPointsArray() has been removed.' );
+
+		},
+		reparametrizeByArcLength: function ( /* samplingCoef */ ) {
+
+			console.error( 'THREE.Spline: .reparametrizeByArcLength() has been removed.' );
+
+		}
+
+	} );
+
+	//
+
+	function AxisHelper( size ) {
+
+		console.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' );
+		return new AxesHelper( size );
+
+	}
+
+	function BoundingBoxHelper( object, color ) {
+
+		console.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' );
+		return new BoxHelper( object, color );
+
+	}
+
+	function EdgesHelper( object, hex ) {
+
+		console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );
+		return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );
+
+	}
+
+	GridHelper.prototype.setColors = function () {
+
+		console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );
+
+	};
+
+	SkeletonHelper.prototype.update = function () {
+
+		console.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' );
+
+	};
+
+	function WireframeHelper( object, hex ) {
+
+		console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );
+		return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );
+
+	}
+
+	//
+
+	Object.assign( Loader.prototype, {
+
+		extractUrlBase: function ( url ) {
+
+			console.warn( 'THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.' );
+			return LoaderUtils.extractUrlBase( url );
+
+		}
+
+	} );
+
+	function XHRLoader( manager ) {
+
+		console.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' );
+		return new FileLoader( manager );
+
+	}
+
+	function BinaryTextureLoader( manager ) {
+
+		console.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' );
+		return new DataTextureLoader( manager );
+
+	}
+
+	Object.assign( ObjectLoader.prototype, {
+
+		setTexturePath: function ( value ) {
+
+			console.warn( 'THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath().' );
+			return this.setResourcePath( value );
+
+		}
+
+	} );
+
+	//
+
+	Object.assign( Box2.prototype, {
+
+		center: function ( optionalTarget ) {
+
+			console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );
+			return this.getCenter( optionalTarget );
+
+		},
+		empty: function () {
+
+			console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );
+			return this.isEmpty();
+
+		},
+		isIntersectionBox: function ( box ) {
+
+			console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );
+			return this.intersectsBox( box );
+
+		},
+		size: function ( optionalTarget ) {
+
+			console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );
+			return this.getSize( optionalTarget );
+
+		}
+	} );
+
+	Object.assign( Box3.prototype, {
+
+		center: function ( optionalTarget ) {
+
+			console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );
+			return this.getCenter( optionalTarget );
+
+		},
+		empty: function () {
+
+			console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );
+			return this.isEmpty();
+
+		},
+		isIntersectionBox: function ( box ) {
+
+			console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );
+			return this.intersectsBox( box );
+
+		},
+		isIntersectionSphere: function ( sphere ) {
+
+			console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
+			return this.intersectsSphere( sphere );
+
+		},
+		size: function ( optionalTarget ) {
+
+			console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );
+			return this.getSize( optionalTarget );
+
+		}
+	} );
+
+	Line3.prototype.center = function ( optionalTarget ) {
+
+		console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );
+		return this.getCenter( optionalTarget );
+
+	};
+
+	Object.assign( _Math, {
+
+		random16: function () {
+
+			console.warn( 'THREE.Math: .random16() has been deprecated. Use Math.random() instead.' );
+			return Math.random();
+
+		},
+
+		nearestPowerOfTwo: function ( value ) {
+
+			console.warn( 'THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().' );
+			return _Math.floorPowerOfTwo( value );
+
+		},
+
+		nextPowerOfTwo: function ( value ) {
+
+			console.warn( 'THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().' );
+			return _Math.ceilPowerOfTwo( value );
+
+		}
+
+	} );
+
+	Object.assign( Matrix3.prototype, {
+
+		flattenToArrayOffset: function ( array, offset ) {
+
+			console.warn( "THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
+			return this.toArray( array, offset );
+
+		},
+		multiplyVector3: function ( vector ) {
+
+			console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );
+			return vector.applyMatrix3( this );
+
+		},
+		multiplyVector3Array: function ( /* a */ ) {
+
+			console.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' );
+
+		},
+		applyToBuffer: function ( buffer /*, offset, length */ ) {
+
+			console.warn( 'THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
+			return this.applyToBufferAttribute( buffer );
+
+		},
+		applyToVector3Array: function ( /* array, offset, length */ ) {
+
+			console.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' );
+
+		}
+
+	} );
+
+	Object.assign( Matrix4.prototype, {
+
+		extractPosition: function ( m ) {
+
+			console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );
+			return this.copyPosition( m );
+
+		},
+		flattenToArrayOffset: function ( array, offset ) {
+
+			console.warn( "THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
+			return this.toArray( array, offset );
+
+		},
+		getPosition: function () {
+
+			var v1;
+
+			return function getPosition() {
+
+				if ( v1 === undefined ) v1 = new Vector3();
+				console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );
+				return v1.setFromMatrixColumn( this, 3 );
+
+			};
+
+		}(),
+		setRotationFromQuaternion: function ( q ) {
+
+			console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );
+			return this.makeRotationFromQuaternion( q );
+
+		},
+		multiplyToArray: function () {
+
+			console.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' );
+
+		},
+		multiplyVector3: function ( vector ) {
+
+			console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
+			return vector.applyMatrix4( this );
+
+		},
+		multiplyVector4: function ( vector ) {
+
+			console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
+			return vector.applyMatrix4( this );
+
+		},
+		multiplyVector3Array: function ( /* a */ ) {
+
+			console.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' );
+
+		},
+		rotateAxis: function ( v ) {
+
+			console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );
+			v.transformDirection( this );
+
+		},
+		crossVector: function ( vector ) {
+
+			console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
+			return vector.applyMatrix4( this );
+
+		},
+		translate: function () {
+
+			console.error( 'THREE.Matrix4: .translate() has been removed.' );
+
+		},
+		rotateX: function () {
+
+			console.error( 'THREE.Matrix4: .rotateX() has been removed.' );
+
+		},
+		rotateY: function () {
+
+			console.error( 'THREE.Matrix4: .rotateY() has been removed.' );
+
+		},
+		rotateZ: function () {
+
+			console.error( 'THREE.Matrix4: .rotateZ() has been removed.' );
+
+		},
+		rotateByAxis: function () {
+
+			console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );
+
+		},
+		applyToBuffer: function ( buffer /*, offset, length */ ) {
+
+			console.warn( 'THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
+			return this.applyToBufferAttribute( buffer );
+
+		},
+		applyToVector3Array: function ( /* array, offset, length */ ) {
+
+			console.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' );
+
+		},
+		makeFrustum: function ( left, right, bottom, top, near, far ) {
+
+			console.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' );
+			return this.makePerspective( left, right, top, bottom, near, far );
+
+		}
+
+	} );
+
+	Plane.prototype.isIntersectionLine = function ( line ) {
+
+		console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );
+		return this.intersectsLine( line );
+
+	};
+
+	Quaternion.prototype.multiplyVector3 = function ( vector ) {
+
+		console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
+		return vector.applyQuaternion( this );
+
+	};
+
+	Object.assign( Ray.prototype, {
+
+		isIntersectionBox: function ( box ) {
+
+			console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );
+			return this.intersectsBox( box );
+
+		},
+		isIntersectionPlane: function ( plane ) {
+
+			console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );
+			return this.intersectsPlane( plane );
+
+		},
+		isIntersectionSphere: function ( sphere ) {
+
+			console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
+			return this.intersectsSphere( sphere );
+
+		}
+
+	} );
+
+	Object.assign( Triangle.prototype, {
+
+		area: function () {
+
+			console.warn( 'THREE.Triangle: .area() has been renamed to .getArea().' );
+			return this.getArea();
+
+		},
+		barycoordFromPoint: function ( point, target ) {
+
+			console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );
+			return this.getBarycoord( point, target );
+
+		},
+		midpoint: function ( target ) {
+
+			console.warn( 'THREE.Triangle: .midpoint() has been renamed to .getMidpoint().' );
+			return this.getMidpoint( target );
+
+		},
+		normal: function ( target ) {
+
+			console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );
+			return this.getNormal( target );
+
+		},
+		plane: function ( target ) {
+
+			console.warn( 'THREE.Triangle: .plane() has been renamed to .getPlane().' );
+			return this.getPlane( target );
+
+		}
+
+	} );
+
+	Object.assign( Triangle, {
+
+		barycoordFromPoint: function ( point, a, b, c, target ) {
+
+			console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );
+			return Triangle.getBarycoord( point, a, b, c, target );
+
+		},
+		normal: function ( a, b, c, target ) {
+
+			console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );
+			return Triangle.getNormal( a, b, c, target );
+
+		}
+
+	} );
+
+	Object.assign( Shape.prototype, {
+
+		extractAllPoints: function ( divisions ) {
+
+			console.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' );
+			return this.extractPoints( divisions );
+
+		},
+		extrude: function ( options ) {
+
+			console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );
+			return new ExtrudeGeometry( this, options );
+
+		},
+		makeGeometry: function ( options ) {
+
+			console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );
+			return new ShapeGeometry( this, options );
+
+		}
+
+	} );
+
+	Object.assign( Vector2.prototype, {
+
+		fromAttribute: function ( attribute, index, offset ) {
+
+			console.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' );
+			return this.fromBufferAttribute( attribute, index, offset );
+
+		},
+		distanceToManhattan: function ( v ) {
+
+			console.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
+			return this.manhattanDistanceTo( v );
+
+		},
+		lengthManhattan: function () {
+
+			console.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' );
+			return this.manhattanLength();
+
+		}
+
+	} );
+
+	Object.assign( Vector3.prototype, {
+
+		setEulerFromRotationMatrix: function () {
+
+			console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );
+
+		},
+		setEulerFromQuaternion: function () {
+
+			console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );
+
+		},
+		getPositionFromMatrix: function ( m ) {
+
+			console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );
+			return this.setFromMatrixPosition( m );
+
+		},
+		getScaleFromMatrix: function ( m ) {
+
+			console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );
+			return this.setFromMatrixScale( m );
+
+		},
+		getColumnFromMatrix: function ( index, matrix ) {
+
+			console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );
+			return this.setFromMatrixColumn( matrix, index );
+
+		},
+		applyProjection: function ( m ) {
+
+			console.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' );
+			return this.applyMatrix4( m );
+
+		},
+		fromAttribute: function ( attribute, index, offset ) {
+
+			console.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' );
+			return this.fromBufferAttribute( attribute, index, offset );
+
+		},
+		distanceToManhattan: function ( v ) {
+
+			console.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
+			return this.manhattanDistanceTo( v );
+
+		},
+		lengthManhattan: function () {
+
+			console.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' );
+			return this.manhattanLength();
+
+		}
+
+	} );
+
+	Object.assign( Vector4.prototype, {
+
+		fromAttribute: function ( attribute, index, offset ) {
+
+			console.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' );
+			return this.fromBufferAttribute( attribute, index, offset );
+
+		},
+		lengthManhattan: function () {
+
+			console.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' );
+			return this.manhattanLength();
+
+		}
+
+	} );
+
+	//
+
+	Object.assign( Geometry.prototype, {
+
+		computeTangents: function () {
+
+			console.error( 'THREE.Geometry: .computeTangents() has been removed.' );
+
+		},
+		computeLineDistances: function () {
+
+			console.error( 'THREE.Geometry: .computeLineDistances() has been removed. Use THREE.Line.computeLineDistances() instead.' );
+
+		}
+
+	} );
+
+	Object.assign( Object3D.prototype, {
+
+		getChildByName: function ( name ) {
+
+			console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );
+			return this.getObjectByName( name );
+
+		},
+		renderDepth: function () {
+
+			console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );
+
+		},
+		translate: function ( distance, axis ) {
+
+			console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );
+			return this.translateOnAxis( axis, distance );
+
+		},
+		getWorldRotation: function () {
+
+			console.error( 'THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.' );
+
+		}
+
+	} );
+
+	Object.defineProperties( Object3D.prototype, {
+
+		eulerOrder: {
+			get: function () {
+
+				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
+				return this.rotation.order;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
+				this.rotation.order = value;
+
+			}
+		},
+		useQuaternion: {
+			get: function () {
+
+				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
+
+			},
+			set: function () {
+
+				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
+
+			}
+		}
+
+	} );
+
+	Object.defineProperties( LOD.prototype, {
+
+		objects: {
+			get: function () {
+
+				console.warn( 'THREE.LOD: .objects has been renamed to .levels.' );
+				return this.levels;
+
+			}
+		}
+
+	} );
+
+	Object.defineProperty( Skeleton.prototype, 'useVertexTexture', {
+
+		get: function () {
+
+			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );
+
+		},
+		set: function () {
+
+			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );
+
+		}
+
+	} );
+
+	SkinnedMesh.prototype.initBones = function () {
+
+		console.error( 'THREE.SkinnedMesh: initBones() has been removed.' );
+
+	};
+
+	Object.defineProperty( Curve.prototype, '__arcLengthDivisions', {
+
+		get: function () {
+
+			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
+			return this.arcLengthDivisions;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
+			this.arcLengthDivisions = value;
+
+		}
+
+	} );
+
+	//
+
+	PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {
+
+		console.warn( "THREE.PerspectiveCamera.setLens is deprecated. " +
+				"Use .setFocalLength and .filmGauge for a photographic setup." );
+
+		if ( filmGauge !== undefined ) this.filmGauge = filmGauge;
+		this.setFocalLength( focalLength );
+
+	};
+
+	//
+
+	Object.defineProperties( Light.prototype, {
+		onlyShadow: {
+			set: function () {
+
+				console.warn( 'THREE.Light: .onlyShadow has been removed.' );
+
+			}
+		},
+		shadowCameraFov: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );
+				this.shadow.camera.fov = value;
+
+			}
+		},
+		shadowCameraLeft: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );
+				this.shadow.camera.left = value;
+
+			}
+		},
+		shadowCameraRight: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );
+				this.shadow.camera.right = value;
+
+			}
+		},
+		shadowCameraTop: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );
+				this.shadow.camera.top = value;
+
+			}
+		},
+		shadowCameraBottom: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );
+				this.shadow.camera.bottom = value;
+
+			}
+		},
+		shadowCameraNear: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );
+				this.shadow.camera.near = value;
+
+			}
+		},
+		shadowCameraFar: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );
+				this.shadow.camera.far = value;
+
+			}
+		},
+		shadowCameraVisible: {
+			set: function () {
+
+				console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );
+
+			}
+		},
+		shadowBias: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );
+				this.shadow.bias = value;
+
+			}
+		},
+		shadowDarkness: {
+			set: function () {
+
+				console.warn( 'THREE.Light: .shadowDarkness has been removed.' );
+
+			}
+		},
+		shadowMapWidth: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );
+				this.shadow.mapSize.width = value;
+
+			}
+		},
+		shadowMapHeight: {
+			set: function ( value ) {
+
+				console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );
+				this.shadow.mapSize.height = value;
+
+			}
+		}
+	} );
+
+	//
+
+	Object.defineProperties( BufferAttribute.prototype, {
+
+		length: {
+			get: function () {
+
+				console.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' );
+				return this.array.length;
+
+			}
+		},
+		copyIndicesArray: function ( /* indices */ ) {
+
+			console.error( 'THREE.BufferAttribute: .copyIndicesArray() has been removed.' );
+
+		}
+
+	} );
+
+	Object.assign( BufferGeometry.prototype, {
+
+		addIndex: function ( index ) {
+
+			console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );
+			this.setIndex( index );
+
+		},
+		addDrawCall: function ( start, count, indexOffset ) {
+
+			if ( indexOffset !== undefined ) {
+
+				console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );
+
+			}
+			console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );
+			this.addGroup( start, count );
+
+		},
+		clearDrawCalls: function () {
+
+			console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );
+			this.clearGroups();
+
+		},
+		computeTangents: function () {
+
+			console.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );
+
+		},
+		computeOffsets: function () {
+
+			console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );
+
+		}
+
+	} );
+
+	Object.defineProperties( BufferGeometry.prototype, {
+
+		drawcalls: {
+			get: function () {
+
+				console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );
+				return this.groups;
+
+			}
+		},
+		offsets: {
+			get: function () {
+
+				console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );
+				return this.groups;
+
+			}
+		}
+
+	} );
+
+	//
+
+	Object.assign( ExtrudeBufferGeometry.prototype, {
+
+		getArrays: function () {
+
+			console.error( 'THREE.ExtrudeBufferGeometry: .getArrays() has been removed.' );
+
+		},
+
+		addShapeList: function () {
+
+			console.error( 'THREE.ExtrudeBufferGeometry: .addShapeList() has been removed.' );
+
+		},
+
+		addShape: function () {
+
+			console.error( 'THREE.ExtrudeBufferGeometry: .addShape() has been removed.' );
+
+		}
+
+	} );
+
+	//
+
+	Object.defineProperties( Uniform.prototype, {
+
+		dynamic: {
+			set: function () {
+
+				console.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' );
+
+			}
+		},
+		onUpdate: {
+			value: function () {
+
+				console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );
+				return this;
+
+			}
+		}
+
+	} );
+
+	//
+
+	Object.defineProperties( Material.prototype, {
+
+		wrapAround: {
+			get: function () {
+
+				console.warn( 'THREE.Material: .wrapAround has been removed.' );
+
+			},
+			set: function () {
+
+				console.warn( 'THREE.Material: .wrapAround has been removed.' );
+
+			}
+		},
+
+		overdraw: {
+			get: function () {
+
+				console.warn( 'THREE.Material: .overdraw has been removed.' );
+
+			},
+			set: function () {
+
+				console.warn( 'THREE.Material: .overdraw has been removed.' );
+
+			}
+		},
+
+		wrapRGB: {
+			get: function () {
+
+				console.warn( 'THREE.Material: .wrapRGB has been removed.' );
+				return new Color();
+
+			}
+		},
+
+		shading: {
+			get: function () {
+
+				console.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
+				this.flatShading = ( value === FlatShading );
+
+			}
+		}
+
+	} );
+
+	Object.defineProperties( MeshPhongMaterial.prototype, {
+
+		metal: {
+			get: function () {
+
+				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );
+				return false;
+
+			},
+			set: function () {
+
+				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );
+
+			}
+		}
+
+	} );
+
+	Object.defineProperties( ShaderMaterial.prototype, {
+
+		derivatives: {
+			get: function () {
+
+				console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
+				return this.extensions.derivatives;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
+				this.extensions.derivatives = value;
+
+			}
+		}
+
+	} );
+
+	//
+
+	Object.assign( WebGLRenderer.prototype, {
+
+		clearTarget: function ( renderTarget, color, depth, stencil ) {
+
+			console.warn( 'THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead.' );
+			this.setRenderTarget( renderTarget );
+			this.clear( color, depth, stencil );
+
+		},
+		animate: function ( callback ) {
+
+			console.warn( 'THREE.WebGLRenderer: .animate() is now .setAnimationLoop().' );
+			this.setAnimationLoop( callback );
+
+		},
+		getCurrentRenderTarget: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' );
+			return this.getRenderTarget();
+
+		},
+		getMaxAnisotropy: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' );
+			return this.capabilities.getMaxAnisotropy();
+
+		},
+		getPrecision: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' );
+			return this.capabilities.precision;
+
+		},
+		resetGLState: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' );
+			return this.state.reset();
+
+		},
+		supportsFloatTextures: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' );
+			return this.extensions.get( 'OES_texture_float' );
+
+		},
+		supportsHalfFloatTextures: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' );
+			return this.extensions.get( 'OES_texture_half_float' );
+
+		},
+		supportsStandardDerivatives: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' );
+			return this.extensions.get( 'OES_standard_derivatives' );
+
+		},
+		supportsCompressedTextureS3TC: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' );
+			return this.extensions.get( 'WEBGL_compressed_texture_s3tc' );
+
+		},
+		supportsCompressedTexturePVRTC: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' );
+			return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );
+
+		},
+		supportsBlendMinMax: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' );
+			return this.extensions.get( 'EXT_blend_minmax' );
+
+		},
+		supportsVertexTextures: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' );
+			return this.capabilities.vertexTextures;
+
+		},
+		supportsInstancedArrays: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' );
+			return this.extensions.get( 'ANGLE_instanced_arrays' );
+
+		},
+		enableScissorTest: function ( boolean ) {
+
+			console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );
+			this.setScissorTest( boolean );
+
+		},
+		initMaterial: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );
+
+		},
+		addPrePlugin: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );
+
+		},
+		addPostPlugin: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );
+
+		},
+		updateShadowMap: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );
+
+		},
+		setFaceCulling: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .setFaceCulling() has been removed.' );
+
+		},
+		allocTextureUnit: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .allocTextureUnit() has been removed.' );
+
+		},
+		setTexture: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .setTexture() has been removed.' );
+
+		},
+		setTexture2D: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .setTexture2D() has been removed.' );
+
+		},
+		setTextureCube: function () {
+
+			console.warn( 'THREE.WebGLRenderer: .setTextureCube() has been removed.' );
+
+		}
+
+	} );
+
+	Object.defineProperties( WebGLRenderer.prototype, {
+
+		shadowMapEnabled: {
+			get: function () {
+
+				return this.shadowMap.enabled;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );
+				this.shadowMap.enabled = value;
+
+			}
+		},
+		shadowMapType: {
+			get: function () {
+
+				return this.shadowMap.type;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );
+				this.shadowMap.type = value;
+
+			}
+		},
+		shadowMapCullFace: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );
+				return undefined;
+
+			},
+			set: function ( /* value */ ) {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );
+
+			}
+		}
+	} );
+
+	Object.defineProperties( WebGLShadowMap.prototype, {
+
+		cullFace: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );
+				return undefined;
+
+			},
+			set: function ( /* cullFace */ ) {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );
+
+			}
+		},
+		renderReverseSided: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );
+				return undefined;
+
+			},
+			set: function () {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );
+
+			}
+		},
+		renderSingleSided: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );
+				return undefined;
+
+			},
+			set: function () {
+
+				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );
+
+			}
+		}
+
+	} );
+
+	//
+
+	Object.defineProperties( WebGLRenderTargetCube.prototype, {
+
+		activeCubeFace: {
+			set: function ( /* value */ ) {
+
+				console.warn( 'THREE.WebGLRenderTargetCube: .activeCubeFace has been removed. It is now the second parameter of WebGLRenderer.setRenderTarget().' );
+
+			}
+		},
+		activeMipMapLevel: {
+			set: function ( /* value */ ) {
+
+				console.warn( 'THREE.WebGLRenderTargetCube: .activeMipMapLevel has been removed. It is now the third parameter of WebGLRenderer.setRenderTarget().' );
+
+			}
+		}
+
+	} );
+
+	//
+
+	Object.defineProperties( WebGLRenderTarget.prototype, {
+
+		wrapS: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
+				return this.texture.wrapS;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
+				this.texture.wrapS = value;
+
+			}
+		},
+		wrapT: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
+				return this.texture.wrapT;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
+				this.texture.wrapT = value;
+
+			}
+		},
+		magFilter: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
+				return this.texture.magFilter;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
+				this.texture.magFilter = value;
+
+			}
+		},
+		minFilter: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
+				return this.texture.minFilter;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
+				this.texture.minFilter = value;
+
+			}
+		},
+		anisotropy: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
+				return this.texture.anisotropy;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
+				this.texture.anisotropy = value;
+
+			}
+		},
+		offset: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
+				return this.texture.offset;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
+				this.texture.offset = value;
+
+			}
+		},
+		repeat: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
+				return this.texture.repeat;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
+				this.texture.repeat = value;
+
+			}
+		},
+		format: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
+				return this.texture.format;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
+				this.texture.format = value;
+
+			}
+		},
+		type: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
+				return this.texture.type;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
+				this.texture.type = value;
+
+			}
+		},
+		generateMipmaps: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
+				return this.texture.generateMipmaps;
+
+			},
+			set: function ( value ) {
+
+				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
+				this.texture.generateMipmaps = value;
+
+			}
+		}
+
+	} );
+
+	//
+
+	Object.defineProperties( WebVRManager.prototype, {
+
+		standing: {
+			set: function ( /* value */ ) {
+
+				console.warn( 'THREE.WebVRManager: .standing has been removed.' );
+
+			}
+		},
+		userHeight: {
+			set: function ( /* value */ ) {
+
+				console.warn( 'THREE.WebVRManager: .userHeight has been removed.' );
+
+			}
+		}
+
+	} );
+
+	//
+
+	Audio.prototype.load = function ( file ) {
+
+		console.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' );
+		var scope = this;
+		var audioLoader = new AudioLoader();
+		audioLoader.load( file, function ( buffer ) {
+
+			scope.setBuffer( buffer );
+
+		} );
+		return this;
+
+	};
+
+	AudioAnalyser.prototype.getData = function () {
+
+		console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );
+		return this.getFrequencyData();
+
+	};
+
+	//
+
+	CubeCamera.prototype.updateCubeMap = function ( renderer, scene ) {
+
+		console.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' );
+		return this.update( renderer, scene );
+
+	};
+
+	//
+
+	var GeometryUtils = {
+
+		merge: function ( geometry1, geometry2, materialIndexOffset ) {
+
+			console.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );
+			var matrix;
+
+			if ( geometry2.isMesh ) {
+
+				geometry2.matrixAutoUpdate && geometry2.updateMatrix();
+
+				matrix = geometry2.matrix;
+				geometry2 = geometry2.geometry;
+
+			}
+
+			geometry1.merge( geometry2, matrix, materialIndexOffset );
+
+		},
+
+		center: function ( geometry ) {
+
+			console.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );
+			return geometry.center();
+
+		}
+
+	};
+
+	ImageUtils.crossOrigin = undefined;
+
+	ImageUtils.loadTexture = function ( url, mapping, onLoad, onError ) {
+
+		console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );
+
+		var loader = new TextureLoader();
+		loader.setCrossOrigin( this.crossOrigin );
+
+		var texture = loader.load( url, onLoad, undefined, onError );
+
+		if ( mapping ) texture.mapping = mapping;
+
+		return texture;
+
+	};
+
+	ImageUtils.loadTextureCube = function ( urls, mapping, onLoad, onError ) {
+
+		console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );
+
+		var loader = new CubeTextureLoader();
+		loader.setCrossOrigin( this.crossOrigin );
+
+		var texture = loader.load( urls, onLoad, undefined, onError );
+
+		if ( mapping ) texture.mapping = mapping;
+
+		return texture;
+
+	};
+
+	ImageUtils.loadCompressedTexture = function () {
+
+		console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );
+
+	};
+
+	ImageUtils.loadCompressedTextureCube = function () {
+
+		console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );
+
+	};
+
+	//
+
+	function CanvasRenderer() {
+
+		console.error( 'THREE.CanvasRenderer has been removed' );
+
+	}
+
+	//
+
+	function JSONLoader() {
+
+		console.error( 'THREE.JSONLoader has been removed.' );
+
+	}
+
+	//
+
+	var SceneUtils = {
+
+		createMultiMaterialObject: function ( /* geometry, materials */ ) {
+
+			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );
+
+		},
+
+		detach: function ( /* child, parent, scene */ ) {
+
+			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );
+
+		},
+
+		attach: function ( /* child, scene, parent */ ) {
+
+			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );
+
+		}
+
+	};
+
+	//
+
+	function LensFlare() {
+
+		console.error( 'THREE.LensFlare has been moved to /examples/js/objects/Lensflare.js' );
+
+	}
+
+	exports.ACESFilmicToneMapping = ACESFilmicToneMapping;
+	exports.AddEquation = AddEquation;
+	exports.AddOperation = AddOperation;
+	exports.AdditiveBlending = AdditiveBlending;
+	exports.AlphaFormat = AlphaFormat;
+	exports.AlwaysDepth = AlwaysDepth;
+	exports.AmbientLight = AmbientLight;
+	exports.AmbientLightProbe = AmbientLightProbe;
+	exports.AnimationClip = AnimationClip;
+	exports.AnimationLoader = AnimationLoader;
+	exports.AnimationMixer = AnimationMixer;
+	exports.AnimationObjectGroup = AnimationObjectGroup;
+	exports.AnimationUtils = AnimationUtils;
+	exports.ArcCurve = ArcCurve;
+	exports.ArrayCamera = ArrayCamera;
+	exports.ArrowHelper = ArrowHelper;
+	exports.Audio = Audio;
+	exports.AudioAnalyser = AudioAnalyser;
+	exports.AudioContext = AudioContext;
+	exports.AudioListener = AudioListener;
+	exports.AudioLoader = AudioLoader;
+	exports.AxesHelper = AxesHelper;
+	exports.AxisHelper = AxisHelper;
+	exports.BackSide = BackSide;
+	exports.BasicDepthPacking = BasicDepthPacking;
+	exports.BasicShadowMap = BasicShadowMap;
+	exports.BinaryTextureLoader = BinaryTextureLoader;
+	exports.Bone = Bone;
+	exports.BooleanKeyframeTrack = BooleanKeyframeTrack;
+	exports.BoundingBoxHelper = BoundingBoxHelper;
+	exports.Box2 = Box2;
+	exports.Box3 = Box3;
+	exports.Box3Helper = Box3Helper;
+	exports.BoxBufferGeometry = BoxBufferGeometry;
+	exports.BoxGeometry = BoxGeometry;
+	exports.BoxHelper = BoxHelper;
+	exports.BufferAttribute = BufferAttribute;
+	exports.BufferGeometry = BufferGeometry;
+	exports.BufferGeometryLoader = BufferGeometryLoader;
+	exports.ByteType = ByteType;
+	exports.Cache = Cache;
+	exports.Camera = Camera;
+	exports.CameraHelper = CameraHelper;
+	exports.CanvasRenderer = CanvasRenderer;
+	exports.CanvasTexture = CanvasTexture;
+	exports.CatmullRomCurve3 = CatmullRomCurve3;
+	exports.CineonToneMapping = CineonToneMapping;
+	exports.CircleBufferGeometry = CircleBufferGeometry;
+	exports.CircleGeometry = CircleGeometry;
+	exports.ClampToEdgeWrapping = ClampToEdgeWrapping;
+	exports.Clock = Clock;
+	exports.ClosedSplineCurve3 = ClosedSplineCurve3;
+	exports.Color = Color;
+	exports.ColorKeyframeTrack = ColorKeyframeTrack;
+	exports.CompressedTexture = CompressedTexture;
+	exports.CompressedTextureLoader = CompressedTextureLoader;
+	exports.ConeBufferGeometry = ConeBufferGeometry;
+	exports.ConeGeometry = ConeGeometry;
+	exports.CubeCamera = CubeCamera;
+	exports.CubeGeometry = BoxGeometry;
+	exports.CubeReflectionMapping = CubeReflectionMapping;
+	exports.CubeRefractionMapping = CubeRefractionMapping;
+	exports.CubeTexture = CubeTexture;
+	exports.CubeTextureLoader = CubeTextureLoader;
+	exports.CubeUVReflectionMapping = CubeUVReflectionMapping;
+	exports.CubeUVRefractionMapping = CubeUVRefractionMapping;
+	exports.CubicBezierCurve = CubicBezierCurve;
+	exports.CubicBezierCurve3 = CubicBezierCurve3;
+	exports.CubicInterpolant = CubicInterpolant;
+	exports.CullFaceBack = CullFaceBack;
+	exports.CullFaceFront = CullFaceFront;
+	exports.CullFaceFrontBack = CullFaceFrontBack;
+	exports.CullFaceNone = CullFaceNone;
+	exports.Curve = Curve;
+	exports.CurvePath = CurvePath;
+	exports.CustomBlending = CustomBlending;
+	exports.CylinderBufferGeometry = CylinderBufferGeometry;
+	exports.CylinderGeometry = CylinderGeometry;
+	exports.Cylindrical = Cylindrical;
+	exports.DataTexture = DataTexture;
+	exports.DataTexture2DArray = DataTexture2DArray;
+	exports.DataTexture3D = DataTexture3D;
+	exports.DataTextureLoader = DataTextureLoader;
+	exports.DefaultLoadingManager = DefaultLoadingManager;
+	exports.DepthFormat = DepthFormat;
+	exports.DepthStencilFormat = DepthStencilFormat;
+	exports.DepthTexture = DepthTexture;
+	exports.DirectionalLight = DirectionalLight;
+	exports.DirectionalLightHelper = DirectionalLightHelper;
+	exports.DirectionalLightShadow = DirectionalLightShadow;
+	exports.DiscreteInterpolant = DiscreteInterpolant;
+	exports.DodecahedronBufferGeometry = DodecahedronBufferGeometry;
+	exports.DodecahedronGeometry = DodecahedronGeometry;
+	exports.DoubleSide = DoubleSide;
+	exports.DstAlphaFactor = DstAlphaFactor;
+	exports.DstColorFactor = DstColorFactor;
+	exports.DynamicBufferAttribute = DynamicBufferAttribute;
+	exports.EdgesGeometry = EdgesGeometry;
+	exports.EdgesHelper = EdgesHelper;
+	exports.EllipseCurve = EllipseCurve;
+	exports.EqualDepth = EqualDepth;
+	exports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;
+	exports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;
+	exports.Euler = Euler;
+	exports.EventDispatcher = EventDispatcher;
+	exports.ExtrudeBufferGeometry = ExtrudeBufferGeometry;
+	exports.ExtrudeGeometry = ExtrudeGeometry;
+	exports.Face3 = Face3;
+	exports.Face4 = Face4;
+	exports.FaceColors = FaceColors;
+	exports.FaceNormalsHelper = FaceNormalsHelper;
+	exports.FileLoader = FileLoader;
+	exports.FlatShading = FlatShading;
+	exports.Float32Attribute = Float32Attribute;
+	exports.Float32BufferAttribute = Float32BufferAttribute;
+	exports.Float64Attribute = Float64Attribute;
+	exports.Float64BufferAttribute = Float64BufferAttribute;
+	exports.FloatType = FloatType;
+	exports.Fog = Fog;
+	exports.FogExp2 = FogExp2;
+	exports.Font = Font;
+	exports.FontLoader = FontLoader;
+	exports.FrontFaceDirectionCCW = FrontFaceDirectionCCW;
+	exports.FrontFaceDirectionCW = FrontFaceDirectionCW;
+	exports.FrontSide = FrontSide;
+	exports.Frustum = Frustum;
+	exports.GammaEncoding = GammaEncoding;
+	exports.Geometry = Geometry;
+	exports.GeometryUtils = GeometryUtils;
+	exports.GreaterDepth = GreaterDepth;
+	exports.GreaterEqualDepth = GreaterEqualDepth;
+	exports.GridHelper = GridHelper;
+	exports.Group = Group;
+	exports.HalfFloatType = HalfFloatType;
+	exports.HemisphereLight = HemisphereLight;
+	exports.HemisphereLightHelper = HemisphereLightHelper;
+	exports.HemisphereLightProbe = HemisphereLightProbe;
+	exports.IcosahedronBufferGeometry = IcosahedronBufferGeometry;
+	exports.IcosahedronGeometry = IcosahedronGeometry;
+	exports.ImageBitmapLoader = ImageBitmapLoader;
+	exports.ImageLoader = ImageLoader;
+	exports.ImageUtils = ImageUtils;
+	exports.ImmediateRenderObject = ImmediateRenderObject;
+	exports.InstancedBufferAttribute = InstancedBufferAttribute;
+	exports.InstancedBufferGeometry = InstancedBufferGeometry;
+	exports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;
+	exports.Int16Attribute = Int16Attribute;
+	exports.Int16BufferAttribute = Int16BufferAttribute;
+	exports.Int32Attribute = Int32Attribute;
+	exports.Int32BufferAttribute = Int32BufferAttribute;
+	exports.Int8Attribute = Int8Attribute;
+	exports.Int8BufferAttribute = Int8BufferAttribute;
+	exports.IntType = IntType;
+	exports.InterleavedBuffer = InterleavedBuffer;
+	exports.InterleavedBufferAttribute = InterleavedBufferAttribute;
+	exports.Interpolant = Interpolant;
+	exports.InterpolateDiscrete = InterpolateDiscrete;
+	exports.InterpolateLinear = InterpolateLinear;
+	exports.InterpolateSmooth = InterpolateSmooth;
+	exports.JSONLoader = JSONLoader;
+	exports.KeyframeTrack = KeyframeTrack;
+	exports.LOD = LOD;
+	exports.LatheBufferGeometry = LatheBufferGeometry;
+	exports.LatheGeometry = LatheGeometry;
+	exports.Layers = Layers;
+	exports.LensFlare = LensFlare;
+	exports.LessDepth = LessDepth;
+	exports.LessEqualDepth = LessEqualDepth;
+	exports.Light = Light;
+	exports.LightProbe = LightProbe;
+	exports.LightProbeHelper = LightProbeHelper;
+	exports.LightShadow = LightShadow;
+	exports.Line = Line;
+	exports.Line3 = Line3;
+	exports.LineBasicMaterial = LineBasicMaterial;
+	exports.LineCurve = LineCurve;
+	exports.LineCurve3 = LineCurve3;
+	exports.LineDashedMaterial = LineDashedMaterial;
+	exports.LineLoop = LineLoop;
+	exports.LinePieces = LinePieces;
+	exports.LineSegments = LineSegments;
+	exports.LineStrip = LineStrip;
+	exports.LinearEncoding = LinearEncoding;
+	exports.LinearFilter = LinearFilter;
+	exports.LinearInterpolant = LinearInterpolant;
+	exports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;
+	exports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;
+	exports.LinearToneMapping = LinearToneMapping;
+	exports.Loader = Loader;
+	exports.LoaderUtils = LoaderUtils;
+	exports.LoadingManager = LoadingManager;
+	exports.LogLuvEncoding = LogLuvEncoding;
+	exports.LoopOnce = LoopOnce;
+	exports.LoopPingPong = LoopPingPong;
+	exports.LoopRepeat = LoopRepeat;
+	exports.LuminanceAlphaFormat = LuminanceAlphaFormat;
+	exports.LuminanceFormat = LuminanceFormat;
+	exports.MOUSE = MOUSE;
+	exports.Material = Material;
+	exports.MaterialLoader = MaterialLoader;
+	exports.Math = _Math;
+	exports.Matrix3 = Matrix3;
+	exports.Matrix4 = Matrix4;
+	exports.MaxEquation = MaxEquation;
+	exports.Mesh = Mesh;
+	exports.MeshBasicMaterial = MeshBasicMaterial;
+	exports.MeshDepthMaterial = MeshDepthMaterial;
+	exports.MeshDistanceMaterial = MeshDistanceMaterial;
+	exports.MeshFaceMaterial = MeshFaceMaterial;
+	exports.MeshLambertMaterial = MeshLambertMaterial;
+	exports.MeshMatcapMaterial = MeshMatcapMaterial;
+	exports.MeshNormalMaterial = MeshNormalMaterial;
+	exports.MeshPhongMaterial = MeshPhongMaterial;
+	exports.MeshPhysicalMaterial = MeshPhysicalMaterial;
+	exports.MeshStandardMaterial = MeshStandardMaterial;
+	exports.MeshToonMaterial = MeshToonMaterial;
+	exports.MinEquation = MinEquation;
+	exports.MirroredRepeatWrapping = MirroredRepeatWrapping;
+	exports.MixOperation = MixOperation;
+	exports.MultiMaterial = MultiMaterial;
+	exports.MultiplyBlending = MultiplyBlending;
+	exports.MultiplyOperation = MultiplyOperation;
+	exports.NearestFilter = NearestFilter;
+	exports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;
+	exports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;
+	exports.NeverDepth = NeverDepth;
+	exports.NoBlending = NoBlending;
+	exports.NoColors = NoColors;
+	exports.NoToneMapping = NoToneMapping;
+	exports.NormalBlending = NormalBlending;
+	exports.NotEqualDepth = NotEqualDepth;
+	exports.NumberKeyframeTrack = NumberKeyframeTrack;
+	exports.Object3D = Object3D;
+	exports.ObjectLoader = ObjectLoader;
+	exports.ObjectSpaceNormalMap = ObjectSpaceNormalMap;
+	exports.OctahedronBufferGeometry = OctahedronBufferGeometry;
+	exports.OctahedronGeometry = OctahedronGeometry;
+	exports.OneFactor = OneFactor;
+	exports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;
+	exports.OneMinusDstColorFactor = OneMinusDstColorFactor;
+	exports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;
+	exports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;
+	exports.OrthographicCamera = OrthographicCamera;
+	exports.PCFShadowMap = PCFShadowMap;
+	exports.PCFSoftShadowMap = PCFSoftShadowMap;
+	exports.ParametricBufferGeometry = ParametricBufferGeometry;
+	exports.ParametricGeometry = ParametricGeometry;
+	exports.Particle = Particle;
+	exports.ParticleBasicMaterial = ParticleBasicMaterial;
+	exports.ParticleSystem = ParticleSystem;
+	exports.ParticleSystemMaterial = ParticleSystemMaterial;
+	exports.Path = Path;
+	exports.PerspectiveCamera = PerspectiveCamera;
+	exports.Plane = Plane;
+	exports.PlaneBufferGeometry = PlaneBufferGeometry;
+	exports.PlaneGeometry = PlaneGeometry;
+	exports.PlaneHelper = PlaneHelper;
+	exports.PointCloud = PointCloud;
+	exports.PointCloudMaterial = PointCloudMaterial;
+	exports.PointLight = PointLight;
+	exports.PointLightHelper = PointLightHelper;
+	exports.Points = Points;
+	exports.PointsMaterial = PointsMaterial;
+	exports.PolarGridHelper = PolarGridHelper;
+	exports.PolyhedronBufferGeometry = PolyhedronBufferGeometry;
+	exports.PolyhedronGeometry = PolyhedronGeometry;
+	exports.PositionalAudio = PositionalAudio;
+	exports.PositionalAudioHelper = PositionalAudioHelper;
+	exports.PropertyBinding = PropertyBinding;
+	exports.PropertyMixer = PropertyMixer;
+	exports.QuadraticBezierCurve = QuadraticBezierCurve;
+	exports.QuadraticBezierCurve3 = QuadraticBezierCurve3;
+	exports.Quaternion = Quaternion;
+	exports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;
+	exports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;
+	exports.REVISION = REVISION;
+	exports.RGBADepthPacking = RGBADepthPacking;
+	exports.RGBAFormat = RGBAFormat;
+	exports.RGBA_ASTC_10x10_Format = RGBA_ASTC_10x10_Format;
+	exports.RGBA_ASTC_10x5_Format = RGBA_ASTC_10x5_Format;
+	exports.RGBA_ASTC_10x6_Format = RGBA_ASTC_10x6_Format;
+	exports.RGBA_ASTC_10x8_Format = RGBA_ASTC_10x8_Format;
+	exports.RGBA_ASTC_12x10_Format = RGBA_ASTC_12x10_Format;
+	exports.RGBA_ASTC_12x12_Format = RGBA_ASTC_12x12_Format;
+	exports.RGBA_ASTC_4x4_Format = RGBA_ASTC_4x4_Format;
+	exports.RGBA_ASTC_5x4_Format = RGBA_ASTC_5x4_Format;
+	exports.RGBA_ASTC_5x5_Format = RGBA_ASTC_5x5_Format;
+	exports.RGBA_ASTC_6x5_Format = RGBA_ASTC_6x5_Format;
+	exports.RGBA_ASTC_6x6_Format = RGBA_ASTC_6x6_Format;
+	exports.RGBA_ASTC_8x5_Format = RGBA_ASTC_8x5_Format;
+	exports.RGBA_ASTC_8x6_Format = RGBA_ASTC_8x6_Format;
+	exports.RGBA_ASTC_8x8_Format = RGBA_ASTC_8x8_Format;
+	exports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;
+	exports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;
+	exports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;
+	exports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;
+	exports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;
+	exports.RGBDEncoding = RGBDEncoding;
+	exports.RGBEEncoding = RGBEEncoding;
+	exports.RGBEFormat = RGBEFormat;
+	exports.RGBFormat = RGBFormat;
+	exports.RGBM16Encoding = RGBM16Encoding;
+	exports.RGBM7Encoding = RGBM7Encoding;
+	exports.RGB_ETC1_Format = RGB_ETC1_Format;
+	exports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;
+	exports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;
+	exports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;
+	exports.RawShaderMaterial = RawShaderMaterial;
+	exports.Ray = Ray;
+	exports.Raycaster = Raycaster;
+	exports.RectAreaLight = RectAreaLight;
+	exports.RectAreaLightHelper = RectAreaLightHelper;
+	exports.RedFormat = RedFormat;
+	exports.ReinhardToneMapping = ReinhardToneMapping;
+	exports.RepeatWrapping = RepeatWrapping;
+	exports.ReverseSubtractEquation = ReverseSubtractEquation;
+	exports.RingBufferGeometry = RingBufferGeometry;
+	exports.RingGeometry = RingGeometry;
+	exports.Scene = Scene;
+	exports.SceneUtils = SceneUtils;
+	exports.ShaderChunk = ShaderChunk;
+	exports.ShaderLib = ShaderLib;
+	exports.ShaderMaterial = ShaderMaterial;
+	exports.ShadowMaterial = ShadowMaterial;
+	exports.Shape = Shape;
+	exports.ShapeBufferGeometry = ShapeBufferGeometry;
+	exports.ShapeGeometry = ShapeGeometry;
+	exports.ShapePath = ShapePath;
+	exports.ShapeUtils = ShapeUtils;
+	exports.ShortType = ShortType;
+	exports.Skeleton = Skeleton;
+	exports.SkeletonHelper = SkeletonHelper;
+	exports.SkinnedMesh = SkinnedMesh;
+	exports.SmoothShading = SmoothShading;
+	exports.Sphere = Sphere;
+	exports.SphereBufferGeometry = SphereBufferGeometry;
+	exports.SphereGeometry = SphereGeometry;
+	exports.Spherical = Spherical;
+	exports.SphericalHarmonics3 = SphericalHarmonics3;
+	exports.SphericalReflectionMapping = SphericalReflectionMapping;
+	exports.Spline = Spline;
+	exports.SplineCurve = SplineCurve;
+	exports.SplineCurve3 = SplineCurve3;
+	exports.SpotLight = SpotLight;
+	exports.SpotLightHelper = SpotLightHelper;
+	exports.SpotLightShadow = SpotLightShadow;
+	exports.Sprite = Sprite;
+	exports.SpriteMaterial = SpriteMaterial;
+	exports.SrcAlphaFactor = SrcAlphaFactor;
+	exports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;
+	exports.SrcColorFactor = SrcColorFactor;
+	exports.StereoCamera = StereoCamera;
+	exports.StringKeyframeTrack = StringKeyframeTrack;
+	exports.SubtractEquation = SubtractEquation;
+	exports.SubtractiveBlending = SubtractiveBlending;
+	exports.TangentSpaceNormalMap = TangentSpaceNormalMap;
+	exports.TetrahedronBufferGeometry = TetrahedronBufferGeometry;
+	exports.TetrahedronGeometry = TetrahedronGeometry;
+	exports.TextBufferGeometry = TextBufferGeometry;
+	exports.TextGeometry = TextGeometry;
+	exports.Texture = Texture;
+	exports.TextureLoader = TextureLoader;
+	exports.TorusBufferGeometry = TorusBufferGeometry;
+	exports.TorusGeometry = TorusGeometry;
+	exports.TorusKnotBufferGeometry = TorusKnotBufferGeometry;
+	exports.TorusKnotGeometry = TorusKnotGeometry;
+	exports.Triangle = Triangle;
+	exports.TriangleFanDrawMode = TriangleFanDrawMode;
+	exports.TriangleStripDrawMode = TriangleStripDrawMode;
+	exports.TrianglesDrawMode = TrianglesDrawMode;
+	exports.TubeBufferGeometry = TubeBufferGeometry;
+	exports.TubeGeometry = TubeGeometry;
+	exports.UVMapping = UVMapping;
+	exports.Uint16Attribute = Uint16Attribute;
+	exports.Uint16BufferAttribute = Uint16BufferAttribute;
+	exports.Uint32Attribute = Uint32Attribute;
+	exports.Uint32BufferAttribute = Uint32BufferAttribute;
+	exports.Uint8Attribute = Uint8Attribute;
+	exports.Uint8BufferAttribute = Uint8BufferAttribute;
+	exports.Uint8ClampedAttribute = Uint8ClampedAttribute;
+	exports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;
+	exports.Uncharted2ToneMapping = Uncharted2ToneMapping;
+	exports.Uniform = Uniform;
+	exports.UniformsLib = UniformsLib;
+	exports.UniformsUtils = UniformsUtils;
+	exports.UnsignedByteType = UnsignedByteType;
+	exports.UnsignedInt248Type = UnsignedInt248Type;
+	exports.UnsignedIntType = UnsignedIntType;
+	exports.UnsignedShort4444Type = UnsignedShort4444Type;
+	exports.UnsignedShort5551Type = UnsignedShort5551Type;
+	exports.UnsignedShort565Type = UnsignedShort565Type;
+	exports.UnsignedShortType = UnsignedShortType;
+	exports.Vector2 = Vector2;
+	exports.Vector3 = Vector3;
+	exports.Vector4 = Vector4;
+	exports.VectorKeyframeTrack = VectorKeyframeTrack;
+	exports.Vertex = Vertex;
+	exports.VertexColors = VertexColors;
+	exports.VertexNormalsHelper = VertexNormalsHelper;
+	exports.VideoTexture = VideoTexture;
+	exports.WebGLMultisampleRenderTarget = WebGLMultisampleRenderTarget;
+	exports.WebGLRenderTarget = WebGLRenderTarget;
+	exports.WebGLRenderTargetCube = WebGLRenderTargetCube;
+	exports.WebGLRenderer = WebGLRenderer;
+	exports.WebGLUtils = WebGLUtils;
+	exports.WireframeGeometry = WireframeGeometry;
+	exports.WireframeHelper = WireframeHelper;
+	exports.WrapAroundEnding = WrapAroundEnding;
+	exports.XHRLoader = XHRLoader;
+	exports.ZeroCurvatureEnding = ZeroCurvatureEnding;
+	exports.ZeroFactor = ZeroFactor;
+	exports.ZeroSlopeEnding = ZeroSlopeEnding;
+	exports.sRGBEncoding = sRGBEncoding;
+
+	Object.defineProperty(exports, '__esModule', { value: true });
+
+}));
diff --git a/Elements/src/Geometry/Solids/Sweep.cs b/Elements/src/Geometry/Solids/Sweep.cs
index 1c3a9c1be..76aea1729 100644
--- a/Elements/src/Geometry/Solids/Sweep.cs
+++ b/Elements/src/Geometry/Solids/Sweep.cs
@@ -1,3 +1,4 @@
+using System;
 using Elements.Serialization.JSON;
 
 namespace Elements.Geometry.Solids
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 25845b1af..a4024494d 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -26,8 +26,8 @@ internal class ElementConverter<T> : JsonConverter<T>
     {
         public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            var sw = new Stopwatch();
-            sw.Start();
+            // var sw = new Stopwatch();
+            // sw.Start();
 
             var resolver = options.ReferenceHandler.CreateResolver() as ElementReferenceResolver;
 
@@ -57,7 +57,7 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                 {
                     resolver.AddReference(((Element)(object)e).Id.ToString(), e);
                 }
-                Console.WriteLine($"{sw.ElapsedMilliseconds}ms for deserializing type.");
+                // Console.WriteLine($"{sw.ElapsedMilliseconds}ms for deserializing type.");
                 return e;
             }
         }

From 1b846a5555639153cf75b0d1c44181f3225fa9b7 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 22 Feb 2022 01:37:57 -0800
Subject: [PATCH 019/150] Little cleanups.

---
 Elements.Wasm/ElementsWrapper.cs                    | 2 +-
 Elements/src/Model.cs                               | 8 +-------
 Elements/src/Serialization/JSON/ElementConverter.cs | 5 +----
 3 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/Elements.Wasm/ElementsWrapper.cs b/Elements.Wasm/ElementsWrapper.cs
index ca38190da..3d7693f9d 100644
--- a/Elements.Wasm/ElementsWrapper.cs
+++ b/Elements.Wasm/ElementsWrapper.cs
@@ -38,7 +38,7 @@ public static Task<TestResult> Test()
         var model = new Model();
         var r = new Random();
         var size = 10;
-        var profile = Polygon.L(0.1, 0.1, 0.05);
+        var profile = new Profile(Polygon.L(0.1, 0.1, 0.05));
         for (var i = 0; i < 100; i++)
         {
             var start = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 70da8dd99..125be2276 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -297,11 +297,7 @@ public static Model FromJson(string json, bool forceTypeReload = false)
         /// </summary>
         public string ToJsonNew()
         {
-            var serializerOptions = new JsonSerializerOptions()
-            {
-                WriteIndented = true
-            };
-
+            var serializerOptions = new JsonSerializerOptions();
             serializerOptions.Converters.Add(new ElementConverterFactory());
             return System.Text.Json.JsonSerializer.Serialize(this, serializerOptions);
         }
@@ -317,12 +313,10 @@ public static Model FromJsonNew(string json)
             using (var document = JsonDocument.Parse(json))
             {
                 JsonElement root = document.RootElement;
-                JsonElement transformElement = root.GetProperty("Transform");
                 JsonElement elementsElement = root.GetProperty("Elements");
 
                 var options = new JsonSerializerOptions()
                 {
-                    WriteIndented = true,
                     PropertyNameCaseInsensitive = true
                 };
 
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index a4024494d..60a3d8977 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -26,9 +26,6 @@ internal class ElementConverter<T> : JsonConverter<T>
     {
         public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            // var sw = new Stopwatch();
-            // sw.Start();
-
             var resolver = options.ReferenceHandler.CreateResolver() as ElementReferenceResolver;
 
             if (reader.TokenType == JsonTokenType.String)
@@ -37,6 +34,7 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                 return (T)resolver.ResolveReference(id.ToString());
             }
 
+
             using (var doc = JsonDocument.ParseValue(ref reader))
             {
                 var root = doc.RootElement;
@@ -57,7 +55,6 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                 {
                     resolver.AddReference(((Element)(object)e).Id.ToString(), e);
                 }
-                // Console.WriteLine($"{sw.ElapsedMilliseconds}ms for deserializing type.");
                 return e;
             }
         }

From 828efed5bd1c67873c99564e5d6d971717f919c7 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 25 Feb 2022 12:03:37 -0800
Subject: [PATCH 020/150] Cleanup.

---
 Elements/src/Serialization/JSON/ElementConverter.cs | 2 --
 1 file changed, 2 deletions(-)

diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 60a3d8977..3b4fb1a70 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Diagnostics;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 
@@ -34,7 +33,6 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                 return (T)resolver.ResolveReference(id.ToString());
             }
 
-
             using (var doc = JsonDocument.ParseValue(ref reader))
             {
                 var root = doc.RootElement;

From d9adf81af429b16bcf834d6cf386019e0a15ef82 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 25 Feb 2022 12:03:51 -0800
Subject: [PATCH 021/150] Multi-colored test.

---
 Elements.Wasm/ElementsWrapper.cs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Elements.Wasm/ElementsWrapper.cs b/Elements.Wasm/ElementsWrapper.cs
index 3d7693f9d..25e71c6e9 100644
--- a/Elements.Wasm/ElementsWrapper.cs
+++ b/Elements.Wasm/ElementsWrapper.cs
@@ -44,7 +44,9 @@ public static Task<TestResult> Test()
             var start = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
             var end = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
             var line = new Line(start, end);
-            var beam = new Beam(line, profile);
+            var c = new Color(r.NextDouble(), r.NextDouble(), r.NextDouble(), 1.0);
+            var m = new Material(Guid.NewGuid().ToString(), c);
+            var beam = new Beam(line, profile, m);
             model.AddElement(beam);
         }
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating test beams.");
@@ -69,8 +71,8 @@ public static Task<TestResult> Test()
 
     public class TestResult
     {
-        public byte[] Glb { get; set; }
-        public string Results { get; set; }
+        public byte[]? Glb { get; set; }
+        public string? Results { get; set; }
     }
 
     [JSInvokable]

From 196690ee5078678d1c2306e97c4fb30d40a76ddb Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 25 Feb 2022 12:05:24 -0800
Subject: [PATCH 022/150] Cleanup.

---
 Elements.Wasm/Elements.Wasm.csproj | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Elements.Wasm/Elements.Wasm.csproj b/Elements.Wasm/Elements.Wasm.csproj
index 2eb96ea09..3d87e5ee5 100644
--- a/Elements.Wasm/Elements.Wasm.csproj
+++ b/Elements.Wasm/Elements.Wasm.csproj
@@ -4,7 +4,6 @@
     <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
-    <!-- <RunAOTCompilation>true</RunAOTCompilation> -->
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
   </PropertyGroup>
 

From faf48ddceeb8b817e1a61661eec2b8ee2f01dd5f Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 25 Feb 2022 12:05:34 -0800
Subject: [PATCH 023/150] Rename the wrapper.

---
 Elements.Wasm/{ElementsWrapper.cs => ElementsAPI.cs} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename Elements.Wasm/{ElementsWrapper.cs => ElementsAPI.cs} (100%)

diff --git a/Elements.Wasm/ElementsWrapper.cs b/Elements.Wasm/ElementsAPI.cs
similarity index 100%
rename from Elements.Wasm/ElementsWrapper.cs
rename to Elements.Wasm/ElementsAPI.cs

From 2abe2b86a14a1ebc27fd3e1422b08e126aa6d787 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Apr 2022 13:58:41 -0700
Subject: [PATCH 024/150] Replace all newtonsoft usings with
 system.text.json.serialization.

---
 .../src/Templates/Catalog.liquid              |  2 +-
 .../src/Templates/File.liquid                 |  2 +-
 Elements.CodeGeneration/src/TypeGenerator.cs  |  2 +-
 .../src/ComponentDefinition.cs                |  2 +-
 .../src/ContentCatalogRetrieval.cs            |  2 +-
 .../src/Rules/SizeBasedPlacementRule.cs       |  2 +-
 Elements/src/Analysis/AnalysisMesh.cs         |  2 +-
 Elements/src/Analysis/ColorScale.cs           |  4 +-
 Elements/src/BaseCeiling.cs                   |  2 +-
 Elements/src/ContentCatalog.cs                |  2 +-
 Elements/src/ContentElement.cs                |  2 +-
 Elements/src/Element.cs                       |  2 +-
 Elements/src/ElementInstance.cs               |  2 +-
 Elements/src/ElementProxy.cs                  |  2 +-
 Elements/src/Floor.cs                         |  2 +-
 Elements/src/GeoJSON/Feature.cs               | 17 +++---
 Elements/src/GeoJSON/FeatureCollection.cs     |  9 +--
 Elements/src/GeoJSON/Geometry.cs              |  2 +-
 Elements/src/GeoJSON/Position.cs              |  2 +-
 Elements/src/GeometricElement.cs              |  2 +-
 Elements/src/Geometry/Arc.cs                  |  2 +-
 Elements/src/Geometry/BBox3.cs                |  2 +-
 Elements/src/Geometry/Box.cs                  |  2 +-
 Elements/src/Geometry/Circle.cs               |  2 +-
 Elements/src/Geometry/Color.cs                |  2 +-
 Elements/src/Geometry/Curve.cs                |  2 +-
 Elements/src/Geometry/Line.cs                 |  2 +-
 Elements/src/Geometry/Matrix.cs               |  2 +-
 Elements/src/Geometry/Mesh.cs                 |  2 +-
 Elements/src/Geometry/Plane.cs                |  2 +-
 Elements/src/Geometry/Polygon.cs              |  2 +-
 Elements/src/Geometry/Polyline.cs             |  2 +-
 Elements/src/Geometry/Profile.cs              |  2 +-
 Elements/src/Geometry/Profiles/CProfile.cs    |  2 +-
 .../src/Geometry/Profiles/HSSPipeProfile.cs   |  2 +-
 Elements/src/Geometry/Profiles/HSSProfile.cs  |  2 +-
 Elements/src/Geometry/Profiles/LProfile.cs    |  2 +-
 Elements/src/Geometry/Profiles/MCProfile.cs   |  2 +-
 .../Geometry/Profiles/ParametricProfile.cs    |  2 +-
 Elements/src/Geometry/Profiles/RHSProfile.cs  |  2 +-
 Elements/src/Geometry/Profiles/SHSProfile.cs  |  2 +-
 Elements/src/Geometry/Profiles/STProfile.cs   |  2 +-
 .../src/Geometry/Profiles/VectorExpression.cs |  2 +-
 Elements/src/Geometry/Profiles/WProfile.cs    |  2 +-
 Elements/src/Geometry/Profiles/WTProfile.cs   |  2 +-
 .../Geometry/Profiles/WideFlangeProfile.cs    |  2 +-
 Elements/src/Geometry/Representation.cs       |  2 +-
 .../src/Geometry/Solids/ConstructedSolid.cs   |  2 +-
 Elements/src/Geometry/Solids/Extrude.cs       |  2 +-
 Elements/src/Geometry/Solids/Lamina.cs        |  2 +-
 .../src/Geometry/Solids/SolidOperation.cs     |  2 +-
 Elements/src/Geometry/Solids/Sweep.cs         |  2 +-
 Elements/src/Geometry/Transform.cs            |  2 +-
 Elements/src/Geometry/Triangle.cs             |  2 +-
 Elements/src/Geometry/UV.cs                   |  2 +-
 Elements/src/Geometry/Vector3.cs              |  2 +-
 Elements/src/Geometry/Vertex.cs               |  2 +-
 Elements/src/GeometryReference.cs             |  2 +-
 Elements/src/Joist.cs                         |  2 +-
 Elements/src/Mass.cs                          |  2 +-
 Elements/src/Material.cs                      |  2 +-
 Elements/src/Math/Domain1d.cs                 |  2 +-
 Elements/src/MeshElement.cs                   |  2 +-
 Elements/src/Model.cs                         |  2 +-
 Elements/src/ModelArrows.cs                   |  2 +-
 Elements/src/ModelLines.cs                    |  2 +-
 Elements/src/ModelPoints.cs                   |  2 +-
 Elements/src/OpenCeiling.cs                   |  2 +-
 Elements/src/Opening.cs                       |  2 +-
 .../JSON/JsonInheritanceConverter.cs          |  2 +-
 .../src/Serialization/JSON/MeshConverter.cs   |  2 +-
 .../src/Serialization/JSON/SolidConverter.cs  |  2 +-
 Elements/src/SolidCeiling.cs                  |  2 +-
 Elements/src/Space.cs                         |  2 +-
 .../src/Spatial/AdaptiveGrid/AdaptiveGrid.cs  |  2 +-
 Elements/src/Spatial/AdaptiveGrid/Vertex.cs   |  2 +-
 Elements/src/Spatial/CellComplex/Cell.cs      |  2 +-
 .../src/Spatial/CellComplex/CellComplex.cs    |  2 +-
 Elements/src/Spatial/CellComplex/ChildBase.cs |  2 +-
 .../src/Spatial/CellComplex/DirectedEdge.cs   |  2 +-
 Elements/src/Spatial/CellComplex/Edge.cs      |  2 +-
 Elements/src/Spatial/CellComplex/Face.cs      |  2 +-
 .../CellComplex/Interfaces/IDistanceTo.cs     |  2 +-
 .../CellComplex/Interfaces/IHasNeighbors.cs   |  2 +-
 Elements/src/Spatial/CellComplex/Vertex.cs    |  2 +-
 .../src/Spatial/CellComplex/VertexBase.cs     |  2 +-
 Elements/src/Spatial/Grid1d.cs                |  2 +-
 Elements/src/Spatial/Grid2d.cs                |  2 +-
 Elements/src/Symbol.cs                        |  2 +-
 Elements/src/TiledCeiling.cs                  |  2 +-
 Elements/src/Topography.cs                    |  2 +-
 Elements/src/Wall.cs                          |  2 +-
 Elements/src/WallByProfile.cs                 |  2 +-
 Elements/test/BBox3Tests.cs                   |  2 +-
 Elements/test/BoxTests.cs                     |  2 +-
 Elements/test/ColorScaleTests.cs              |  2 +-
 Elements/test/ColorTests.cs                   |  2 +-
 Elements/test/CsgTests.cs                     |  2 +-
 Elements/test/ElementProxyTests.cs            |  2 +-
 Elements/test/GeoJSONTests.cs                 | 55 ++++++++++---------
 Elements/test/GltfTests.cs                    |  2 +-
 Elements/test/Grid1dTests.cs                  |  2 +-
 Elements/test/Grid2dElement.cs                |  2 +-
 Elements/test/Grid2dTests.cs                  |  2 +-
 Elements/test/HalfEdgeGraph2dTests.cs         |  2 +-
 Elements/test/LineTests.cs                    |  2 +-
 Elements/test/MeshTests.cs                    |  2 +-
 Elements/test/ModelTests.cs                   |  2 +-
 Elements/test/PolygonTests.cs                 |  2 +-
 Elements/test/ProfileTests.cs                 |  4 +-
 Elements/test/SolidTests.cs                   |  2 +-
 Elements/test/TopographyTests.cs              |  2 +-
 112 files changed, 153 insertions(+), 150 deletions(-)

diff --git a/Elements.CodeGeneration/src/Templates/Catalog.liquid b/Elements.CodeGeneration/src/Templates/Catalog.liquid
index e69bc6dad..982f3024e 100644
--- a/Elements.CodeGeneration/src/Templates/Catalog.liquid
+++ b/Elements.CodeGeneration/src/Templates/Catalog.liquid
@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements {
 public static class {{ catalog.name | safeidentifierupper }} {
diff --git a/Elements.CodeGeneration/src/Templates/File.liquid b/Elements.CodeGeneration/src/Templates/File.liquid
index 24beb3fd8..f1ae25003 100644
--- a/Elements.CodeGeneration/src/Templates/File.liquid
+++ b/Elements.CodeGeneration/src/Templates/File.liquid
@@ -10,7 +10,7 @@ using Elements.Geometry.Solids;
 using Elements.Spatial;
 using Elements.Validators;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Elements.CodeGeneration/src/TypeGenerator.cs b/Elements.CodeGeneration/src/TypeGenerator.cs
index c91de9b81..001a9c085 100644
--- a/Elements.CodeGeneration/src/TypeGenerator.cs
+++ b/Elements.CodeGeneration/src/TypeGenerator.cs
@@ -6,7 +6,7 @@
 using System.Threading.Tasks;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using NJsonSchema;
 using NJsonSchema.CodeGeneration.CSharp;
 using Elements.Generate.StringUtils;
diff --git a/Elements.Components/src/ComponentDefinition.cs b/Elements.Components/src/ComponentDefinition.cs
index edac2f113..f31f1b456 100644
--- a/Elements.Components/src/ComponentDefinition.cs
+++ b/Elements.Components/src/ComponentDefinition.cs
@@ -4,7 +4,7 @@
 using System.Linq;
 using Elements;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Components
 {
diff --git a/Elements.Components/src/ContentCatalogRetrieval.cs b/Elements.Components/src/ContentCatalogRetrieval.cs
index cc3a97941..3645d9249 100644
--- a/Elements.Components/src/ContentCatalogRetrieval.cs
+++ b/Elements.Components/src/ContentCatalogRetrieval.cs
@@ -4,7 +4,7 @@
 using System.Linq;
 using System.Reflection;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Components
 {
diff --git a/Elements.Components/src/Rules/SizeBasedPlacementRule.cs b/Elements.Components/src/Rules/SizeBasedPlacementRule.cs
index 82b1caa22..487d23eed 100644
--- a/Elements.Components/src/Rules/SizeBasedPlacementRule.cs
+++ b/Elements.Components/src/Rules/SizeBasedPlacementRule.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Components
 {
diff --git a/Elements/src/Analysis/AnalysisMesh.cs b/Elements/src/Analysis/AnalysisMesh.cs
index 0d1e2cfdf..e96348981 100644
--- a/Elements/src/Analysis/AnalysisMesh.cs
+++ b/Elements/src/Analysis/AnalysisMesh.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using Elements.Geometry;
 using Elements.Geometry.Interfaces;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Analysis
 {
diff --git a/Elements/src/Analysis/ColorScale.cs b/Elements/src/Analysis/ColorScale.cs
index bd6b8343d..b1981d3c2 100644
--- a/Elements/src/Analysis/ColorScale.cs
+++ b/Elements/src/Analysis/ColorScale.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Elements;
 using System.Linq;
 
@@ -114,7 +114,7 @@ public ColorScale(List<Color> colors, List<double> values)
             {
                 if (i > 0 && values[i] <= values[i - 1])
                 {
-                    throw new ArgumentException($"Your list of custom values must be sorted numerically and contain no duplicate values. {values[i]} cannot come after {values[i-1]}.");
+                    throw new ArgumentException($"Your list of custom values must be sorted numerically and contain no duplicate values. {values[i]} cannot come after {values[i - 1]}.");
                 }
                 this.Domains.Add(new Domain1d(values[i], values[i + 1]));
             }
diff --git a/Elements/src/BaseCeiling.cs b/Elements/src/BaseCeiling.cs
index 220ed190a..fd348e8e4 100644
--- a/Elements/src/BaseCeiling.cs
+++ b/Elements/src/BaseCeiling.cs
@@ -1,7 +1,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Interfaces;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Elements/src/ContentCatalog.cs b/Elements/src/ContentCatalog.cs
index 57593d09f..52ff3f89b 100644
--- a/Elements/src/ContentCatalog.cs
+++ b/Elements/src/ContentCatalog.cs
@@ -1,7 +1,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Newtonsoft.Json.Linq;
 
 namespace Elements
diff --git a/Elements/src/ContentElement.cs b/Elements/src/ContentElement.cs
index 14c78f51e..6b40c3dfa 100644
--- a/Elements/src/ContentElement.cs
+++ b/Elements/src/ContentElement.cs
@@ -1,7 +1,7 @@
 using System.Collections.Generic;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index 902d5d415..fae007a9d 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -1,6 +1,6 @@
 using System;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/ElementInstance.cs b/Elements/src/ElementInstance.cs
index 9cb9e2019..c1b4dbaca 100644
--- a/Elements/src/ElementInstance.cs
+++ b/Elements/src/ElementInstance.cs
@@ -1,6 +1,6 @@
 using System;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/ElementProxy.cs b/Elements/src/ElementProxy.cs
index f79e702ba..de04fdc7c 100644
--- a/Elements/src/ElementProxy.cs
+++ b/Elements/src/ElementProxy.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Elements/src/Floor.cs b/Elements/src/Floor.cs
index 15a99d186..768dc0673 100644
--- a/Elements/src/Floor.cs
+++ b/Elements/src/Floor.cs
@@ -3,7 +3,7 @@
 using System;
 using Elements.Geometry.Solids;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/GeoJSON/Feature.cs b/Elements/src/GeoJSON/Feature.cs
index 111137622..c11de43a3 100644
--- a/Elements/src/GeoJSON/Feature.cs
+++ b/Elements/src/GeoJSON/Feature.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System.Collections.Generic;
 
 namespace Elements.GeoJSON
@@ -12,7 +12,8 @@ public class Feature
         /// The type of the feature.
         /// </summary>
         [JsonProperty("type")]
-        public string Type{
+        public string Type
+        {
             get
             {
                 return GetType().Name;
@@ -22,28 +23,28 @@ public string Type{
         /// <summary>
         /// All properties of the feature.
         /// </summary>
-        [JsonProperty("properties", NullValueHandling=NullValueHandling.Ignore)]
-        public Dictionary<string, object> Properties{get; set;}
+        [JsonProperty("properties", NullValueHandling = NullValueHandling.Ignore)]
+        public Dictionary<string, object> Properties { get; set; }
 
         /// <summary>
         /// The geometry of the feature.
         /// </summary>
         [JsonProperty("geometry")]
         [JsonConverter(typeof(GeometryConverter))]
-        public Geometry Geometry{get;set;}
+        public Geometry Geometry { get; set; }
 
         /// <summary>
         /// The bounding box of the feature.
         /// </summary>
-        [JsonProperty("bbox", NullValueHandling=NullValueHandling.Ignore)]
-        public IEnumerable<double> BBox{get;}
+        [JsonProperty("bbox", NullValueHandling = NullValueHandling.Ignore)]
+        public IEnumerable<double> BBox { get; }
 
         /// <summary>
         /// Construct a feature.
         /// </summary>
         /// <param name="geometry"></param>
         /// <param name="properties"></param>
-        public Feature(Geometry geometry, Dictionary<string,object> properties)
+        public Feature(Geometry geometry, Dictionary<string, object> properties)
         {
             this.Geometry = geometry;
             this.Properties = properties;
diff --git a/Elements/src/GeoJSON/FeatureCollection.cs b/Elements/src/GeoJSON/FeatureCollection.cs
index 605b668ef..7b36b2927 100644
--- a/Elements/src/GeoJSON/FeatureCollection.cs
+++ b/Elements/src/GeoJSON/FeatureCollection.cs
@@ -1,5 +1,5 @@
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.GeoJSON
 {
@@ -12,18 +12,19 @@ public class FeatureCollection
         /// The type of the feature.
         /// </summary>
         [JsonProperty("type")]
-        public string Type{
+        public string Type
+        {
             get
             {
                 return GetType().Name;
             }
         }
-        
+
         /// <summary>
         /// A collection of features.
         /// </summary>
         [JsonProperty("features")]
-        public IEnumerable<Feature> Features{get;set;}
+        public IEnumerable<Feature> Features { get; set; }
 
         /// <summary>
         /// Construct a feature collection.
diff --git a/Elements/src/GeoJSON/Geometry.cs b/Elements/src/GeoJSON/Geometry.cs
index 47b89feb5..984409fcc 100644
--- a/Elements/src/GeoJSON/Geometry.cs
+++ b/Elements/src/GeoJSON/Geometry.cs
@@ -1,5 +1,5 @@
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Newtonsoft.Json.Linq;
 
 using System;
diff --git a/Elements/src/GeoJSON/Position.cs b/Elements/src/GeoJSON/Position.cs
index 7515d85fc..aae8de6c5 100644
--- a/Elements/src/GeoJSON/Position.cs
+++ b/Elements/src/GeoJSON/Position.cs
@@ -1,6 +1,6 @@
 using Elements.Geometry;
 using Elements.Spatial;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.GeoJSON
 {
diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index b60f35da9..ad570f015 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -5,7 +5,7 @@
 using Elements.Geometry.Solids;
 using Elements.Interfaces;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/Geometry/Arc.cs b/Elements/src/Geometry/Arc.cs
index 28961a912..b3fef76fc 100644
--- a/Elements/src/Geometry/Arc.cs
+++ b/Elements/src/Geometry/Arc.cs
@@ -1,6 +1,6 @@
 using Elements.Validators;
 using System;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System.Collections.Generic;
 
 namespace Elements.Geometry
diff --git a/Elements/src/Geometry/BBox3.cs b/Elements/src/Geometry/BBox3.cs
index ab257d6b6..067573b04 100644
--- a/Elements/src/Geometry/BBox3.cs
+++ b/Elements/src/Geometry/BBox3.cs
@@ -1,5 +1,5 @@
 using Elements.Validators;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System.Collections.Generic;
 using System.Linq;
 
diff --git a/Elements/src/Geometry/Box.cs b/Elements/src/Geometry/Box.cs
index a27727d53..44e5ceff6 100644
--- a/Elements/src/Geometry/Box.cs
+++ b/Elements/src/Geometry/Box.cs
@@ -1,7 +1,7 @@
 
 using System.Collections.Generic;
 using System.Linq;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Circle.cs b/Elements/src/Geometry/Circle.cs
index 46805a5e9..696bd3e58 100644
--- a/Elements/src/Geometry/Circle.cs
+++ b/Elements/src/Geometry/Circle.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Color.cs b/Elements/src/Geometry/Color.cs
index 5569e21d4..e567fc1cd 100644
--- a/Elements/src/Geometry/Color.cs
+++ b/Elements/src/Geometry/Color.cs
@@ -1,5 +1,5 @@
 using Elements.Validators;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Globalization;
 
diff --git a/Elements/src/Geometry/Curve.cs b/Elements/src/Geometry/Curve.cs
index ccb1281bf..bcef6ca69 100644
--- a/Elements/src/Geometry/Curve.cs
+++ b/Elements/src/Geometry/Curve.cs
@@ -1,7 +1,7 @@
 using System.Collections.Generic;
 using Elements.Geometry.Interfaces;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Line.cs b/Elements/src/Geometry/Line.cs
index eb3079c9e..cc4aa9e19 100644
--- a/Elements/src/Geometry/Line.cs
+++ b/Elements/src/Geometry/Line.cs
@@ -4,7 +4,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Matrix.cs b/Elements/src/Geometry/Matrix.cs
index 02f77d7fc..91ad37547 100644
--- a/Elements/src/Geometry/Matrix.cs
+++ b/Elements/src/Geometry/Matrix.cs
@@ -1,6 +1,6 @@
 using Elements.Validators;
 using System;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Mesh.cs b/Elements/src/Geometry/Mesh.cs
index c2ac78b1b..c1fa3ab77 100644
--- a/Elements/src/Geometry/Mesh.cs
+++ b/Elements/src/Geometry/Mesh.cs
@@ -1,6 +1,6 @@
 using Elements.Serialization.JSON;
 using LibTessDotNet.Double;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Octree;
 using System;
 using System.Collections.Generic;
diff --git a/Elements/src/Geometry/Plane.cs b/Elements/src/Geometry/Plane.cs
index 7e19c4d20..39eb6c2aa 100644
--- a/Elements/src/Geometry/Plane.cs
+++ b/Elements/src/Geometry/Plane.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Elements.Validators;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Polygon.cs b/Elements/src/Geometry/Polygon.cs
index 26e697cfa..ad677ac65 100644
--- a/Elements/src/Geometry/Polygon.cs
+++ b/Elements/src/Geometry/Polygon.cs
@@ -3,7 +3,7 @@
 using Elements.Spatial;
 using Elements.Validators;
 using LibTessDotNet.Double;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Elements/src/Geometry/Polyline.cs b/Elements/src/Geometry/Polyline.cs
index 267e24ca1..f5290129e 100644
--- a/Elements/src/Geometry/Polyline.cs
+++ b/Elements/src/Geometry/Polyline.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Elements/src/Geometry/Profile.cs b/Elements/src/Geometry/Profile.cs
index 140f06269..f9cac6e7f 100644
--- a/Elements/src/Geometry/Profile.cs
+++ b/Elements/src/Geometry/Profile.cs
@@ -3,7 +3,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using ClipperLib;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Profiles/CProfile.cs b/Elements/src/Geometry/Profiles/CProfile.cs
index 6437fe20e..ff623a3fa 100644
--- a/Elements/src/Geometry/Profiles/CProfile.cs
+++ b/Elements/src/Geometry/Profiles/CProfile.cs
@@ -1,7 +1,7 @@
 #pragma warning disable CS1591
 using System;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/HSSPipeProfile.cs b/Elements/src/Geometry/Profiles/HSSPipeProfile.cs
index 7626208ec..73cfbe522 100644
--- a/Elements/src/Geometry/Profiles/HSSPipeProfile.cs
+++ b/Elements/src/Geometry/Profiles/HSSPipeProfile.cs
@@ -1,6 +1,6 @@
 #pragma warning disable CS1591
 using System;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/HSSProfile.cs b/Elements/src/Geometry/Profiles/HSSProfile.cs
index a7d30b9b2..11a2f56e9 100644
--- a/Elements/src/Geometry/Profiles/HSSProfile.cs
+++ b/Elements/src/Geometry/Profiles/HSSProfile.cs
@@ -1,7 +1,7 @@
 #pragma warning disable CS1591
 using System;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/LProfile.cs b/Elements/src/Geometry/Profiles/LProfile.cs
index fd70f55c1..39a80230c 100644
--- a/Elements/src/Geometry/Profiles/LProfile.cs
+++ b/Elements/src/Geometry/Profiles/LProfile.cs
@@ -2,7 +2,7 @@
 
 using System;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/MCProfile.cs b/Elements/src/Geometry/Profiles/MCProfile.cs
index b2eeeb0f2..586b35414 100644
--- a/Elements/src/Geometry/Profiles/MCProfile.cs
+++ b/Elements/src/Geometry/Profiles/MCProfile.cs
@@ -1,7 +1,7 @@
 #pragma warning disable CS1591
 using System;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/ParametricProfile.cs b/Elements/src/Geometry/Profiles/ParametricProfile.cs
index e3248fcac..294b43f11 100644
--- a/Elements/src/Geometry/Profiles/ParametricProfile.cs
+++ b/Elements/src/Geometry/Profiles/ParametricProfile.cs
@@ -5,7 +5,7 @@
 using System.Threading.Tasks;
 using Microsoft.CodeAnalysis.CSharp.Scripting;
 using Microsoft.CodeAnalysis.Scripting;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/RHSProfile.cs b/Elements/src/Geometry/Profiles/RHSProfile.cs
index 60e2362ba..22c351949 100644
--- a/Elements/src/Geometry/Profiles/RHSProfile.cs
+++ b/Elements/src/Geometry/Profiles/RHSProfile.cs
@@ -1,6 +1,6 @@
 #pragma warning disable CS1591
 using System;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/SHSProfile.cs b/Elements/src/Geometry/Profiles/SHSProfile.cs
index 06de6a280..3c7811928 100644
--- a/Elements/src/Geometry/Profiles/SHSProfile.cs
+++ b/Elements/src/Geometry/Profiles/SHSProfile.cs
@@ -1,5 +1,5 @@
 using System;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/STProfile.cs b/Elements/src/Geometry/Profiles/STProfile.cs
index 9df7826c8..2acc8e8a6 100644
--- a/Elements/src/Geometry/Profiles/STProfile.cs
+++ b/Elements/src/Geometry/Profiles/STProfile.cs
@@ -1,7 +1,7 @@
 #pragma warning disable CS1591
 using System;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/VectorExpression.cs b/Elements/src/Geometry/Profiles/VectorExpression.cs
index 951ff3a4e..bedee3170 100644
--- a/Elements/src/Geometry/Profiles/VectorExpression.cs
+++ b/Elements/src/Geometry/Profiles/VectorExpression.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/WProfile.cs b/Elements/src/Geometry/Profiles/WProfile.cs
index ab0bc755c..f6dd4d470 100644
--- a/Elements/src/Geometry/Profiles/WProfile.cs
+++ b/Elements/src/Geometry/Profiles/WProfile.cs
@@ -1,7 +1,7 @@
 #pragma warning disable CS1591
 using System;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/WTProfile.cs b/Elements/src/Geometry/Profiles/WTProfile.cs
index f7e70bca2..d6b68e6af 100644
--- a/Elements/src/Geometry/Profiles/WTProfile.cs
+++ b/Elements/src/Geometry/Profiles/WTProfile.cs
@@ -1,7 +1,7 @@
 #pragma warning disable CS1591
 using System;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Profiles/WideFlangeProfile.cs b/Elements/src/Geometry/Profiles/WideFlangeProfile.cs
index d59241311..8bd40febd 100644
--- a/Elements/src/Geometry/Profiles/WideFlangeProfile.cs
+++ b/Elements/src/Geometry/Profiles/WideFlangeProfile.cs
@@ -3,7 +3,7 @@
 using System;
 using System.Collections.Generic;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Profiles
 {
diff --git a/Elements/src/Geometry/Representation.cs b/Elements/src/Geometry/Representation.cs
index 0c87d0aa7..babeca465 100644
--- a/Elements/src/Geometry/Representation.cs
+++ b/Elements/src/Geometry/Representation.cs
@@ -1,6 +1,6 @@
 using System.Collections.Generic;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Solids/ConstructedSolid.cs b/Elements/src/Geometry/Solids/ConstructedSolid.cs
index 46a412e71..fd2f7bd28 100644
--- a/Elements/src/Geometry/Solids/ConstructedSolid.cs
+++ b/Elements/src/Geometry/Solids/ConstructedSolid.cs
@@ -1,5 +1,5 @@
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Solids
 {
diff --git a/Elements/src/Geometry/Solids/Extrude.cs b/Elements/src/Geometry/Solids/Extrude.cs
index 167d2b834..4218de03a 100644
--- a/Elements/src/Geometry/Solids/Extrude.cs
+++ b/Elements/src/Geometry/Solids/Extrude.cs
@@ -1,7 +1,7 @@
 using System;
 using Elements.Serialization.JSON;
 using Elements.Validators;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Solids
 {
diff --git a/Elements/src/Geometry/Solids/Lamina.cs b/Elements/src/Geometry/Solids/Lamina.cs
index b933fa592..ceba84eea 100644
--- a/Elements/src/Geometry/Solids/Lamina.cs
+++ b/Elements/src/Geometry/Solids/Lamina.cs
@@ -1,5 +1,5 @@
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Solids
 {
diff --git a/Elements/src/Geometry/Solids/SolidOperation.cs b/Elements/src/Geometry/Solids/SolidOperation.cs
index 1910bdc2b..92b03d7bd 100644
--- a/Elements/src/Geometry/Solids/SolidOperation.cs
+++ b/Elements/src/Geometry/Solids/SolidOperation.cs
@@ -1,5 +1,5 @@
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Solids
 {
diff --git a/Elements/src/Geometry/Solids/Sweep.cs b/Elements/src/Geometry/Solids/Sweep.cs
index eb615e3fb..5ce453e05 100644
--- a/Elements/src/Geometry/Solids/Sweep.cs
+++ b/Elements/src/Geometry/Solids/Sweep.cs
@@ -1,6 +1,6 @@
 using System;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Solids
 {
diff --git a/Elements/src/Geometry/Transform.cs b/Elements/src/Geometry/Transform.cs
index cab259f9c..6ff531550 100644
--- a/Elements/src/Geometry/Transform.cs
+++ b/Elements/src/Geometry/Transform.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 
diff --git a/Elements/src/Geometry/Triangle.cs b/Elements/src/Geometry/Triangle.cs
index c6f914f84..8034cb934 100644
--- a/Elements/src/Geometry/Triangle.cs
+++ b/Elements/src/Geometry/Triangle.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using LibTessDotNet.Double;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/UV.cs b/Elements/src/Geometry/UV.cs
index cff2dae21..06e41e0e7 100644
--- a/Elements/src/Geometry/UV.cs
+++ b/Elements/src/Geometry/UV.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Vector3.cs b/Elements/src/Geometry/Vector3.cs
index 6b37cdc4c..150f0de2d 100644
--- a/Elements/src/Geometry/Vector3.cs
+++ b/Elements/src/Geometry/Vector3.cs
@@ -1,5 +1,5 @@
 using Elements.Validators;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 
diff --git a/Elements/src/Geometry/Vertex.cs b/Elements/src/Geometry/Vertex.cs
index 4b49ce89e..e736602e6 100644
--- a/Elements/src/Geometry/Vertex.cs
+++ b/Elements/src/Geometry/Vertex.cs
@@ -1,5 +1,5 @@
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/GeometryReference.cs b/Elements/src/GeometryReference.cs
index 79010ce2d..da205a2aa 100644
--- a/Elements/src/GeometryReference.cs
+++ b/Elements/src/GeometryReference.cs
@@ -1,5 +1,5 @@
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/Joist.cs b/Elements/src/Joist.cs
index e7c004b1a..8bd61e9b7 100644
--- a/Elements/src/Joist.cs
+++ b/Elements/src/Joist.cs
@@ -6,7 +6,7 @@
 using Elements.Geometry.Profiles;
 using Elements.Geometry.Solids;
 using Elements.Spatial;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/Mass.cs b/Elements/src/Mass.cs
index 8b935f9c9..10d06c54d 100644
--- a/Elements/src/Mass.cs
+++ b/Elements/src/Mass.cs
@@ -1,6 +1,6 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 
diff --git a/Elements/src/Material.cs b/Elements/src/Material.cs
index 56c724409..d95e1476d 100644
--- a/Elements/src/Material.cs
+++ b/Elements/src/Material.cs
@@ -3,7 +3,7 @@
 using System.IO;
 using Elements.Geometry;
 using Elements.Validators;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/Math/Domain1d.cs b/Elements/src/Math/Domain1d.cs
index 79d1bb60c..691abe145 100644
--- a/Elements/src/Math/Domain1d.cs
+++ b/Elements/src/Math/Domain1d.cs
@@ -1,5 +1,5 @@
 using System;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/MeshElement.cs b/Elements/src/MeshElement.cs
index 5d2617dc5..0f3e65f65 100644
--- a/Elements/src/MeshElement.cs
+++ b/Elements/src/MeshElement.cs
@@ -1,7 +1,7 @@
 using System;
 using Elements.Geometry;
 using Elements.Geometry.Interfaces;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 7d8ec521e..353060b92 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -6,7 +6,7 @@
 using System.Linq;
 using System.Reflection;
 using System.Collections;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Elements.Serialization.JSON;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
diff --git a/Elements/src/ModelArrows.cs b/Elements/src/ModelArrows.cs
index e55707e25..4e94bd123 100644
--- a/Elements/src/ModelArrows.cs
+++ b/Elements/src/ModelArrows.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/ModelLines.cs b/Elements/src/ModelLines.cs
index ff6694c2f..d2074059c 100644
--- a/Elements/src/ModelLines.cs
+++ b/Elements/src/ModelLines.cs
@@ -1,5 +1,5 @@
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Text;
diff --git a/Elements/src/ModelPoints.cs b/Elements/src/ModelPoints.cs
index ebf6343e5..db576aead 100644
--- a/Elements/src/ModelPoints.cs
+++ b/Elements/src/ModelPoints.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/OpenCeiling.cs b/Elements/src/OpenCeiling.cs
index d5cd70f40..b45662789 100644
--- a/Elements/src/OpenCeiling.cs
+++ b/Elements/src/OpenCeiling.cs
@@ -1,6 +1,6 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 
 namespace Elements
diff --git a/Elements/src/Opening.cs b/Elements/src/Opening.cs
index a14e693b8..ab068cdcb 100644
--- a/Elements/src/Opening.cs
+++ b/Elements/src/Opening.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs b/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
index 4f6cd7387..fa8cb0dc8 100644
--- a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
+++ b/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
@@ -4,7 +4,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Newtonsoft.Json.Linq;
 
 namespace Elements.Serialization.JSON
diff --git a/Elements/src/Serialization/JSON/MeshConverter.cs b/Elements/src/Serialization/JSON/MeshConverter.cs
index 8f1ebe3c8..977994244 100644
--- a/Elements/src/Serialization/JSON/MeshConverter.cs
+++ b/Elements/src/Serialization/JSON/MeshConverter.cs
@@ -4,7 +4,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Newtonsoft.Json.Linq;
 
 namespace Elements.Serialization.JSON
diff --git a/Elements/src/Serialization/JSON/SolidConverter.cs b/Elements/src/Serialization/JSON/SolidConverter.cs
index 472e2508e..1451a6a65 100644
--- a/Elements/src/Serialization/JSON/SolidConverter.cs
+++ b/Elements/src/Serialization/JSON/SolidConverter.cs
@@ -2,7 +2,7 @@
 
 using Elements.Geometry.Solids;
 using System;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Newtonsoft.Json.Linq;
 using System.Collections.Generic;
 using Elements.Geometry;
diff --git a/Elements/src/SolidCeiling.cs b/Elements/src/SolidCeiling.cs
index 357e6d3a7..01b74d56f 100644
--- a/Elements/src/SolidCeiling.cs
+++ b/Elements/src/SolidCeiling.cs
@@ -1,7 +1,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Interfaces;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Elements/src/Space.cs b/Elements/src/Space.cs
index 16483940b..6bf4fb21d 100644
--- a/Elements/src/Space.cs
+++ b/Elements/src/Space.cs
@@ -1,7 +1,7 @@
 using Elements.Geometry;
 using System;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System.Collections.Generic;
 using System.Linq;
 
diff --git a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
index 5316f16d0..143da5862 100644
--- a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
+++ b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
@@ -1,5 +1,5 @@
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Elements/src/Spatial/AdaptiveGrid/Vertex.cs b/Elements/src/Spatial/AdaptiveGrid/Vertex.cs
index fc63149ac..6697f003e 100644
--- a/Elements/src/Spatial/AdaptiveGrid/Vertex.cs
+++ b/Elements/src/Spatial/AdaptiveGrid/Vertex.cs
@@ -1,5 +1,5 @@
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Elements/src/Spatial/CellComplex/Cell.cs b/Elements/src/Spatial/CellComplex/Cell.cs
index 4d990ebd5..e55d9d2a2 100644
--- a/Elements/src/Spatial/CellComplex/Cell.cs
+++ b/Elements/src/Spatial/CellComplex/Cell.cs
@@ -3,7 +3,7 @@
 using System.Linq;
 using Elements.Geometry.Solids;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Spatial.CellComplex
 {
diff --git a/Elements/src/Spatial/CellComplex/CellComplex.cs b/Elements/src/Spatial/CellComplex/CellComplex.cs
index 958cd2463..4e2105b8a 100644
--- a/Elements/src/Spatial/CellComplex/CellComplex.cs
+++ b/Elements/src/Spatial/CellComplex/CellComplex.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Spatial.CellComplex
 {
diff --git a/Elements/src/Spatial/CellComplex/ChildBase.cs b/Elements/src/Spatial/CellComplex/ChildBase.cs
index 3803c92d6..6e65c4fd0 100644
--- a/Elements/src/Spatial/CellComplex/ChildBase.cs
+++ b/Elements/src/Spatial/CellComplex/ChildBase.cs
@@ -1,7 +1,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 
 namespace Elements.Spatial.CellComplex
diff --git a/Elements/src/Spatial/CellComplex/DirectedEdge.cs b/Elements/src/Spatial/CellComplex/DirectedEdge.cs
index 0244a646a..1c987e17a 100644
--- a/Elements/src/Spatial/CellComplex/DirectedEdge.cs
+++ b/Elements/src/Spatial/CellComplex/DirectedEdge.cs
@@ -1,4 +1,4 @@
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System.Collections.Generic;
 using System.Linq;
 
diff --git a/Elements/src/Spatial/CellComplex/Edge.cs b/Elements/src/Spatial/CellComplex/Edge.cs
index 11b2ef06f..9546f3065 100644
--- a/Elements/src/Spatial/CellComplex/Edge.cs
+++ b/Elements/src/Spatial/CellComplex/Edge.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 
 namespace Elements.Spatial.CellComplex
diff --git a/Elements/src/Spatial/CellComplex/Face.cs b/Elements/src/Spatial/CellComplex/Face.cs
index a9d208283..cc0f19074 100644
--- a/Elements/src/Spatial/CellComplex/Face.cs
+++ b/Elements/src/Spatial/CellComplex/Face.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 
 namespace Elements.Spatial.CellComplex
diff --git a/Elements/src/Spatial/CellComplex/Interfaces/IDistanceTo.cs b/Elements/src/Spatial/CellComplex/Interfaces/IDistanceTo.cs
index a47006669..945aebdb9 100644
--- a/Elements/src/Spatial/CellComplex/Interfaces/IDistanceTo.cs
+++ b/Elements/src/Spatial/CellComplex/Interfaces/IDistanceTo.cs
@@ -1,7 +1,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 
 namespace Elements.Spatial.CellComplex.Interfaces
diff --git a/Elements/src/Spatial/CellComplex/Interfaces/IHasNeighbors.cs b/Elements/src/Spatial/CellComplex/Interfaces/IHasNeighbors.cs
index 56b27bd65..629e5d433 100644
--- a/Elements/src/Spatial/CellComplex/Interfaces/IHasNeighbors.cs
+++ b/Elements/src/Spatial/CellComplex/Interfaces/IHasNeighbors.cs
@@ -1,7 +1,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 
 namespace Elements.Spatial.CellComplex.Interfaces
diff --git a/Elements/src/Spatial/CellComplex/Vertex.cs b/Elements/src/Spatial/CellComplex/Vertex.cs
index 21999aa7e..e806ae130 100644
--- a/Elements/src/Spatial/CellComplex/Vertex.cs
+++ b/Elements/src/Spatial/CellComplex/Vertex.cs
@@ -1,6 +1,6 @@
 using Elements.Geometry;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System.Linq;
 
 namespace Elements.Spatial.CellComplex
diff --git a/Elements/src/Spatial/CellComplex/VertexBase.cs b/Elements/src/Spatial/CellComplex/VertexBase.cs
index bbf60e543..407db34f2 100644
--- a/Elements/src/Spatial/CellComplex/VertexBase.cs
+++ b/Elements/src/Spatial/CellComplex/VertexBase.cs
@@ -1,5 +1,5 @@
 using Elements.Geometry;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Spatial.CellComplex
 {
diff --git a/Elements/src/Spatial/Grid1d.cs b/Elements/src/Spatial/Grid1d.cs
index 7b43e5f2e..96d81c738 100644
--- a/Elements/src/Spatial/Grid1d.cs
+++ b/Elements/src/Spatial/Grid1d.cs
@@ -4,7 +4,7 @@
 using System.Linq;
 using Elements.Geometry;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Spatial
 {
diff --git a/Elements/src/Spatial/Grid2d.cs b/Elements/src/Spatial/Grid2d.cs
index 649619a75..ce7937564 100644
--- a/Elements/src/Spatial/Grid2d.cs
+++ b/Elements/src/Spatial/Grid2d.cs
@@ -4,7 +4,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Interfaces;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Spatial
 {
diff --git a/Elements/src/Symbol.cs b/Elements/src/Symbol.cs
index c875e488d..a527e4449 100644
--- a/Elements/src/Symbol.cs
+++ b/Elements/src/Symbol.cs
@@ -4,7 +4,7 @@
 using System.Linq;
 using System.Net;
 using System.Threading.Tasks;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Newtonsoft.Json.Linq;
 
 namespace Elements
diff --git a/Elements/src/TiledCeiling.cs b/Elements/src/TiledCeiling.cs
index f1cbb7dfa..62db62128 100644
--- a/Elements/src/TiledCeiling.cs
+++ b/Elements/src/TiledCeiling.cs
@@ -2,7 +2,7 @@
 using Elements.Geometry.Solids;
 using Elements.Interfaces;
 using Elements.Spatial;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/Elements/src/Topography.cs b/Elements/src/Topography.cs
index 4bf7228b6..37f7a1042 100644
--- a/Elements/src/Topography.cs
+++ b/Elements/src/Topography.cs
@@ -5,7 +5,7 @@
 using Elements.Geometry.Interfaces;
 using Elements.Geometry.Solids;
 using LibTessDotNet.Double;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Vertex = Elements.Geometry.Vertex;
 
 namespace Elements
diff --git a/Elements/src/Wall.cs b/Elements/src/Wall.cs
index 23c43b163..b04d6c3f4 100644
--- a/Elements/src/Wall.cs
+++ b/Elements/src/Wall.cs
@@ -1,7 +1,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Interfaces;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 
diff --git a/Elements/src/WallByProfile.cs b/Elements/src/WallByProfile.cs
index 670ea9505..3800ba8b0 100644
--- a/Elements/src/WallByProfile.cs
+++ b/Elements/src/WallByProfile.cs
@@ -3,7 +3,7 @@
 using System.Linq;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/test/BBox3Tests.cs b/Elements/test/BBox3Tests.cs
index 389befd0d..f6832b64b 100644
--- a/Elements/test/BBox3Tests.cs
+++ b/Elements/test/BBox3Tests.cs
@@ -4,7 +4,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Profiles;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Xunit;
 
 namespace Elements.Tests
diff --git a/Elements/test/BoxTests.cs b/Elements/test/BoxTests.cs
index aea0d7d4a..ea7ded5fa 100644
--- a/Elements/test/BoxTests.cs
+++ b/Elements/test/BoxTests.cs
@@ -4,7 +4,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Profiles;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Xunit;
 
 namespace Elements.Tests
diff --git a/Elements/test/ColorScaleTests.cs b/Elements/test/ColorScaleTests.cs
index 3df86bf2c..cdac51b42 100644
--- a/Elements/test/ColorScaleTests.cs
+++ b/Elements/test/ColorScaleTests.cs
@@ -3,7 +3,7 @@
 using Elements.Analysis;
 using Elements.Geometry;
 using Xunit;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Tests
 {
diff --git a/Elements/test/ColorTests.cs b/Elements/test/ColorTests.cs
index 4595a8d53..86758d16f 100644
--- a/Elements/test/ColorTests.cs
+++ b/Elements/test/ColorTests.cs
@@ -3,7 +3,7 @@
 using Elements.Analysis;
 using Elements.Geometry;
 using Xunit;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Tests
 {
diff --git a/Elements/test/CsgTests.cs b/Elements/test/CsgTests.cs
index 67fe218c8..eb8dd74f9 100644
--- a/Elements/test/CsgTests.cs
+++ b/Elements/test/CsgTests.cs
@@ -7,7 +7,7 @@
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Elements.Geometry.Tessellation;
 
 namespace Elements.Tests
diff --git a/Elements/test/ElementProxyTests.cs b/Elements/test/ElementProxyTests.cs
index d0a37247d..7841210ba 100644
--- a/Elements/test/ElementProxyTests.cs
+++ b/Elements/test/ElementProxyTests.cs
@@ -1,6 +1,6 @@
 using Elements.Spatial;
 using Xunit;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 
 namespace Elements.Tests
diff --git a/Elements/test/GeoJSONTests.cs b/Elements/test/GeoJSONTests.cs
index 5724d2ce7..ebc18a1c5 100644
--- a/Elements/test/GeoJSONTests.cs
+++ b/Elements/test/GeoJSONTests.cs
@@ -1,14 +1,14 @@
 using Elements.GeoJSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using System;
 using Xunit;
 using Line = Elements.GeoJSON.Line;
 
 namespace Elements.Tests
 {
-    
+
     public class GeoJSONTests
-    {   
+    {
         private const string feature = @"
 [
   {
@@ -70,19 +70,19 @@ public void Position_Serialize_Valid()
         [Fact]
         public void Point_Serialize_Valid()
         {
-            var p = new Point(new Position(10.0,5.0));
+            var p = new Point(new Position(10.0, 5.0));
             var json = JsonConvert.SerializeObject(p);
             var newP = JsonConvert.DeserializeObject<Point>(json);
             Assert.Equal("Point", newP.Type);
-            Assert.Equal(new Position(10.0,5.0), newP.Coordinates);
+            Assert.Equal(new Position(10.0, 5.0), newP.Coordinates);
         }
 
         [Fact]
         public void Line_Serialize_Valid()
         {
-            var a = new Position(0,0);
-            var b = new Position(5,5);
-            var l = new Line(new[]{a,b});
+            var a = new Position(0, 0);
+            var b = new Position(5, 5);
+            var l = new Line(new[] { a, b });
             var json = JsonConvert.SerializeObject(l);
             var newL = JsonConvert.DeserializeObject<Line>(json);
             Assert.Equal(a, newL.Coordinates[0]);
@@ -93,10 +93,10 @@ public void Line_Serialize_Valid()
         [Fact]
         public void LineString_Serialize_Valid()
         {
-            var a = new Position(0,0);
-            var b = new Position(5,5);
-            var c = new Position(10,10);
-            var ls = new LineString(new[]{a,b,c});
+            var a = new Position(0, 0);
+            var b = new Position(5, 5);
+            var c = new Position(10, 10);
+            var ls = new LineString(new[] { a, b, c });
             var json = JsonConvert.SerializeObject(ls);
             var newLs = JsonConvert.DeserializeObject<LineString>(json);
             Assert.Equal(a, newLs.Coordinates[0]);
@@ -108,25 +108,26 @@ public void LineString_Serialize_Valid()
         [Fact]
         public void Polygon_Serialize_Valid()
         {
-            var a = new Position(0,0);
-            var b = new Position(5,5);
-            var c = new Position(10,10);
-            var p = new Polygon(new[]{new[]{a,b,c,a}});
+            var a = new Position(0, 0);
+            var b = new Position(5, 5);
+            var c = new Position(10, 10);
+            var p = new Polygon(new[] { new[] { a, b, c, a } });
             var json = JsonConvert.SerializeObject(p);
 
-            Assert.Throws<Exception>(()=>{
+            Assert.Throws<Exception>(() =>
+            {
                 // End point coincidence test.
-                var pFail = new Polygon(new[]{new[]{a,b,c}});
+                var pFail = new Polygon(new[] { new[] { a, b, c } });
             });
         }
 
         [Fact]
         public void MultiLineString_Serialize_Valid()
         {
-            var a = new Position(0,0);
-            var b = new Position(5,5);
-            var c = new Position(10,10);
-            var mls = new MultiLineString(new[]{new[]{a,b,c},new[]{c,b,a}});
+            var a = new Position(0, 0);
+            var b = new Position(5, 5);
+            var c = new Position(10, 10);
+            var mls = new MultiLineString(new[] { new[] { a, b, c }, new[] { c, b, a } });
             var json = JsonConvert.SerializeObject(mls);
             var newMls = JsonConvert.DeserializeObject<MultiLineString>(json);
             Assert.Equal(2, newMls.Coordinates.GetLength(0));
@@ -137,11 +138,11 @@ public void MultiLineString_Serialize_Valid()
         [Fact]
         public void FeatureCollection_SerializeValid()
         {
-            var p = new Point(new Position(0,0));
-            var l = new Line(new []{new Position(0,0), new Position(10,10)});
-            var f1 = new Feature(p,null);
-            var f2 = new Feature(l,null);
-            var fc = new FeatureCollection(new[]{f1,f2});
+            var p = new Point(new Position(0, 0));
+            var l = new Line(new[] { new Position(0, 0), new Position(10, 10) });
+            var f1 = new Feature(p, null);
+            var f2 = new Feature(l, null);
+            var fc = new FeatureCollection(new[] { f1, f2 });
             var json = JsonConvert.SerializeObject(fc);
         }
 
diff --git a/Elements/test/GltfTests.cs b/Elements/test/GltfTests.cs
index cd1ea508b..1e4f51e67 100644
--- a/Elements/test/GltfTests.cs
+++ b/Elements/test/GltfTests.cs
@@ -7,7 +7,7 @@
 using glTFLoader.Schema;
 using System;
 using System.IO;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Tests
 {
diff --git a/Elements/test/Grid1dTests.cs b/Elements/test/Grid1dTests.cs
index 4fbc7132a..748ed3844 100644
--- a/Elements/test/Grid1dTests.cs
+++ b/Elements/test/Grid1dTests.cs
@@ -4,7 +4,7 @@
 using Xunit;
 using Elements.Geometry;
 using System.Collections.Generic;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Tests
 {
diff --git a/Elements/test/Grid2dElement.cs b/Elements/test/Grid2dElement.cs
index ae645b4f4..9a55eb410 100644
--- a/Elements/test/Grid2dElement.cs
+++ b/Elements/test/Grid2dElement.cs
@@ -1,6 +1,6 @@
 using Elements.Serialization.JSON;
 using Elements.Spatial;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
diff --git a/Elements/test/Grid2dTests.cs b/Elements/test/Grid2dTests.cs
index 112e87858..5ecd53f09 100644
--- a/Elements/test/Grid2dTests.cs
+++ b/Elements/test/Grid2dTests.cs
@@ -3,7 +3,7 @@
 using System.Linq;
 using Elements.Spatial;
 using Xunit;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 using System.Collections.Generic;
 
diff --git a/Elements/test/HalfEdgeGraph2dTests.cs b/Elements/test/HalfEdgeGraph2dTests.cs
index c0eb7f38a..4fd1eb050 100644
--- a/Elements/test/HalfEdgeGraph2dTests.cs
+++ b/Elements/test/HalfEdgeGraph2dTests.cs
@@ -6,7 +6,7 @@
 using Elements.Spatial;
 using Elements.Serialization.JSON;
 using System.IO;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Tests
 {
diff --git a/Elements/test/LineTests.cs b/Elements/test/LineTests.cs
index 36ee1fea2..41fd1b9cb 100644
--- a/Elements/test/LineTests.cs
+++ b/Elements/test/LineTests.cs
@@ -3,7 +3,7 @@
 using System.IO;
 using System.Linq;
 using Elements.Tests;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Xunit;
 
 namespace Elements.Geometry.Tests
diff --git a/Elements/test/MeshTests.cs b/Elements/test/MeshTests.cs
index 85c18175d..a73b0ea96 100644
--- a/Elements/test/MeshTests.cs
+++ b/Elements/test/MeshTests.cs
@@ -2,7 +2,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Xunit;
 
 namespace Elements.Tests
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index 012ec12e5..77e888735 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -5,7 +5,7 @@
 using Elements.Serialization.glTF;
 using System.Collections.Generic;
 using Elements.Generate;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Elements.Geometry.Solids;
 using System.Linq;
 using Xunit.Abstractions;
diff --git a/Elements/test/PolygonTests.cs b/Elements/test/PolygonTests.cs
index 975d113f3..baf45ad16 100644
--- a/Elements/test/PolygonTests.cs
+++ b/Elements/test/PolygonTests.cs
@@ -3,7 +3,7 @@
 using System.Collections.Generic;
 using Xunit;
 using Xunit.Abstractions;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Elements.Tests;
 using System.IO;
 using System.Diagnostics;
diff --git a/Elements/test/ProfileTests.cs b/Elements/test/ProfileTests.cs
index 9f87edaf3..3a6767c13 100644
--- a/Elements/test/ProfileTests.cs
+++ b/Elements/test/ProfileTests.cs
@@ -6,7 +6,7 @@
 using Elements.Spatial;
 using Elements.Serialization.JSON;
 using System.IO;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Tests
 {
@@ -157,7 +157,7 @@ public void ProfileComplexUnionAll()
                 new Vector3(73.8654, 42.1189)
             }));
             var unions = Geometry.Profile.UnionAll(new[] {
-                profile1, profile2, profile3, profile4, profile5, 
+                profile1, profile2, profile3, profile4, profile5,
                 profile6, profile7, profile8, profile9, profile10 });
             Assert.Single(unions);
             var union = unions.First();
diff --git a/Elements/test/SolidTests.cs b/Elements/test/SolidTests.cs
index dbbcdbe63..83706c19c 100644
--- a/Elements/test/SolidTests.cs
+++ b/Elements/test/SolidTests.cs
@@ -2,7 +2,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Geometry.Profiles;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using Xunit.Abstractions;
 using System.Collections.Generic;
 using System;
diff --git a/Elements/test/TopographyTests.cs b/Elements/test/TopographyTests.cs
index a53876fbd..7700c5ffb 100644
--- a/Elements/test/TopographyTests.cs
+++ b/Elements/test/TopographyTests.cs
@@ -6,7 +6,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Spatial;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 using SixLabors.ImageSharp;
 using SixLabors.ImageSharp.PixelFormats;
 using Xunit;

From f8dd48ca50766b8166d3c499315f89d78b3642fe Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Apr 2022 14:13:46 -0700
Subject: [PATCH 025/150] Replace all JsonProperty with JsonPropertyName.

---
 .../src/Templates/Class.liquid                |  2 +-
 Elements/src/ContentCatalog.cs                |  4 ++--
 Elements/src/ContentElement.cs                | 10 ++++-----
 Elements/src/Element.cs                       |  4 ++--
 Elements/src/ElementProxy.cs                  |  4 ++--
 Elements/src/GeoJSON/Feature.cs               |  8 +++----
 Elements/src/GeoJSON/FeatureCollection.cs     |  4 ++--
 Elements/src/GeoJSON/Geometry.cs              | 18 +++++++--------
 Elements/src/GeoJSON/Position.cs              |  4 ++--
 Elements/src/GeometricElement.cs              |  6 ++---
 Elements/src/Geometry/Arc.cs                  |  8 +++----
 Elements/src/Geometry/BBox3.cs                |  4 ++--
 Elements/src/Geometry/Color.cs                |  8 +++----
 Elements/src/Geometry/Line.cs                 |  4 ++--
 Elements/src/Geometry/Matrix.cs               |  2 +-
 Elements/src/Geometry/Mesh.cs                 |  4 ++--
 Elements/src/Geometry/Plane.cs                |  4 ++--
 Elements/src/Geometry/Polyline.cs             |  2 +-
 Elements/src/Geometry/Profile.cs              |  4 ++--
 Elements/src/Geometry/Representation.cs       |  2 +-
 .../src/Geometry/Solids/ConstructedSolid.cs   |  2 +-
 Elements/src/Geometry/Solids/Extrude.cs       |  4 ++--
 Elements/src/Geometry/Solids/Lamina.cs        |  4 ++--
 .../src/Geometry/Solids/SolidOperation.cs     |  3 +--
 Elements/src/Geometry/Solids/Sweep.cs         |  8 +++----
 Elements/src/Geometry/Transform.cs            |  2 +-
 Elements/src/Geometry/Triangle.cs             |  4 ++--
 Elements/src/Geometry/UV.cs                   |  4 ++--
 Elements/src/Geometry/Vector3.cs              |  6 ++---
 Elements/src/Geometry/Vertex.cs               | 12 +++++-----
 Elements/src/GeometryReference.cs             |  4 ++--
 Elements/src/Material.cs                      | 22 +++++++++----------
 Elements/src/Model.cs                         |  6 ++---
 Elements/src/Spatial/Grid1d.cs                |  6 ++---
 Elements/src/Spatial/Grid2d.cs                | 12 +++++-----
 Elements/src/Symbol.cs                        |  4 ++--
 Elements/src/WallByProfile.cs                 |  6 ++---
 Elements/test/Grid2dElement.cs                |  2 +-
 Elements/test/MeshTests.cs                    |  2 +-
 39 files changed, 109 insertions(+), 110 deletions(-)

diff --git a/Elements.CodeGeneration/src/Templates/Class.liquid b/Elements.CodeGeneration/src/Templates/Class.liquid
index 962884bb4..5824400eb 100644
--- a/Elements.CodeGeneration/src/Templates/Class.liquid
+++ b/Elements.CodeGeneration/src/Templates/Class.liquid
@@ -30,7 +30,7 @@
 {%   if property.HasDescription -%}
     /// <summary>{{ property.Description | csharpdocs }}</summary>
 {%   endif -%}
-    [JsonProperty("{{ property.Name }}", Required = {{ property.JsonPropertyRequiredCode }}{% if property.IsStringEnumArray %}, ItemConverterType = typeof(Converters.StringEnumConverter){% endif %})]
+    [JsonPropertyName("{{ property.Name }}")]
 {%   if property.RenderRequiredAttribute -%}
     [System.ComponentModel.DataAnnotations.Required{% if property.AllowEmptyStrings %}(AllowEmptyStrings = true){% endif %}]
 {%   endif -%}
diff --git a/Elements/src/ContentCatalog.cs b/Elements/src/ContentCatalog.cs
index 52ff3f89b..3301fb9af 100644
--- a/Elements/src/ContentCatalog.cs
+++ b/Elements/src/ContentCatalog.cs
@@ -13,12 +13,12 @@ namespace Elements
     public class ContentCatalog : Element
     {
         /// <summary>The content elements in this catalog.</summary>
-        [JsonProperty("Content", Required = Required.Always)]
+        [JsonPropertyName("Content")]
         [System.ComponentModel.DataAnnotations.Required]
         public IList<ContentElement> Content { get; set; } = new List<ContentElement>();
 
         /// <summary>An example arrangement of the elements contained in this catalog.</summary>
-        [JsonProperty("ReferenceConfiguration", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("ReferenceConfiguration")]
         public IList<Element> ReferenceConfiguration { get; set; }
 
         /// <summary>
diff --git a/Elements/src/ContentElement.cs b/Elements/src/ContentElement.cs
index 6b40c3dfa..d968bfd1d 100644
--- a/Elements/src/ContentElement.cs
+++ b/Elements/src/ContentElement.cs
@@ -12,23 +12,23 @@ namespace Elements
     public class ContentElement : GeometricElement
     {
         /// <summary>The URI of the gltf for this element.</summary>
-        [JsonProperty("gltfLocation", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("gltfLocation")]
         public string GltfLocation { get; set; }
 
         /// <summary>The bounding box of the content.</summary>
-        [JsonProperty("Bounding Box", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Bounding Box")]
         public BBox3 BoundingBox { get; set; }
 
         /// <summary>The scale needed to convert the gltf to meters.</summary>
-        [JsonProperty("Gltf Scale to Meters", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Gltf Scale to Meters")]
         public double GltfScaleToMeters { get; set; }
 
         /// <summary>A vector indicating the direction the source object was originally facing.</summary>
-        [JsonProperty("SourceDirection", Required = Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("SourceDirection")]
         public Vector3 SourceDirection { get; set; }
 
         /// <summary>Alternate symbolic representations of the object.</summary>
-        [JsonProperty("Symbols", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Symbols")]
         public IList<Symbol> Symbols { get; set; }
 
         private System.Collections.Generic.IDictionary<string, object> _additionalProperties = new System.Collections.Generic.Dictionary<string, object>();
diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index fae007a9d..10786a1e9 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -32,7 +32,7 @@ public abstract class Element : System.ComponentModel.INotifyPropertyChanged
         }
 
         /// <summary>A unique id.</summary>
-        [JsonProperty("Id", Required = Required.Always)]
+        [JsonPropertyName("Id")]
         [System.ComponentModel.DataAnnotations.Required(AllowEmptyStrings = true)]
         public System.Guid Id
         {
@@ -48,7 +48,7 @@ public System.Guid Id
         }
 
         /// <summary>A name.</summary>
-        [JsonProperty("Name", Required = Required.AllowNull)]
+        [JsonPropertyName("Name")]
         public string Name
         {
             get { return _name; }
diff --git a/Elements/src/ElementProxy.cs b/Elements/src/ElementProxy.cs
index de04fdc7c..37020b108 100644
--- a/Elements/src/ElementProxy.cs
+++ b/Elements/src/ElementProxy.cs
@@ -58,13 +58,13 @@ public class ElementProxy<T> : Element where T : Element
         /// <summary>
         /// ID of element that this is a proxy for.
         /// </summary>
-        [JsonProperty("elementId")]
+        [JsonPropertyName("elementId")]
         public Guid ElementId { get; set; }
 
         /// <summary>
         /// Dependency string for the dependency that this element came from.
         /// </summary>
-        [JsonProperty("dependency")]
+        [JsonPropertyName("dependency")]
         public string Dependency { get; set; }
 
         /// <summary>
diff --git a/Elements/src/GeoJSON/Feature.cs b/Elements/src/GeoJSON/Feature.cs
index c11de43a3..fefe7a22c 100644
--- a/Elements/src/GeoJSON/Feature.cs
+++ b/Elements/src/GeoJSON/Feature.cs
@@ -11,7 +11,7 @@ public class Feature
         /// <summary>
         /// The type of the feature.
         /// </summary>
-        [JsonProperty("type")]
+        [JsonPropertyName("type")]
         public string Type
         {
             get
@@ -23,20 +23,20 @@ public string Type
         /// <summary>
         /// All properties of the feature.
         /// </summary>
-        [JsonProperty("properties", NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("properties")]
         public Dictionary<string, object> Properties { get; set; }
 
         /// <summary>
         /// The geometry of the feature.
         /// </summary>
-        [JsonProperty("geometry")]
+        [JsonPropertyName("geometry")]
         [JsonConverter(typeof(GeometryConverter))]
         public Geometry Geometry { get; set; }
 
         /// <summary>
         /// The bounding box of the feature.
         /// </summary>
-        [JsonProperty("bbox", NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("bbox")]
         public IEnumerable<double> BBox { get; }
 
         /// <summary>
diff --git a/Elements/src/GeoJSON/FeatureCollection.cs b/Elements/src/GeoJSON/FeatureCollection.cs
index 7b36b2927..18dba00b8 100644
--- a/Elements/src/GeoJSON/FeatureCollection.cs
+++ b/Elements/src/GeoJSON/FeatureCollection.cs
@@ -11,7 +11,7 @@ public class FeatureCollection
         /// <summary>
         /// The type of the feature.
         /// </summary>
-        [JsonProperty("type")]
+        [JsonPropertyName("type")]
         public string Type
         {
             get
@@ -23,7 +23,7 @@ public string Type
         /// <summary>
         /// A collection of features.
         /// </summary>
-        [JsonProperty("features")]
+        [JsonPropertyName("features")]
         public IEnumerable<Feature> Features { get; set; }
 
         /// <summary>
diff --git a/Elements/src/GeoJSON/Geometry.cs b/Elements/src/GeoJSON/Geometry.cs
index 984409fcc..38fda3db7 100644
--- a/Elements/src/GeoJSON/Geometry.cs
+++ b/Elements/src/GeoJSON/Geometry.cs
@@ -15,7 +15,7 @@ public abstract class Geometry
         /// <summary>
         /// The type of the geometry.
         /// </summary>
-        [JsonProperty("type")]
+        [JsonPropertyName("type")]
         public virtual string Type
         {
             get { return GetType().Name; }
@@ -30,7 +30,7 @@ public class Point : Geometry
         /// <summary>
         /// The coordinates of the geometry.
         /// </summary>
-        [JsonProperty("coordinates")]
+        [JsonPropertyName("coordinates")]
         public Position Coordinates { get; }
 
         /// <summary>
@@ -56,7 +56,7 @@ public class Line : Geometry
         /// <summary>
         /// The coordinates of the geometry.
         /// </summary>
-        [JsonProperty("coordinates")]
+        [JsonPropertyName("coordinates")]
         public Position[] Coordinates { get; }
 
         /// <summary>
@@ -82,7 +82,7 @@ public class MultiPoint : Geometry
         /// <summary>
         /// The coordinates of the geometry.
         /// </summary>
-        [JsonProperty("coordinates")]
+        [JsonPropertyName("coordinates")]
         public Position[] Coordinates { get; }
 
         /// <summary>
@@ -108,7 +108,7 @@ public class LineString : Geometry
         /// <summary>
         /// The coordinates of the geometry.
         /// </summary>
-        [JsonProperty("coordinates")]
+        [JsonPropertyName("coordinates")]
         public Position[] Coordinates { get; }
 
         /// <summary>
@@ -138,7 +138,7 @@ public class MultiLineString : Geometry
         /// <summary>
         /// The coordinates of the geometry.
         /// </summary>
-        [JsonProperty("coordinates")]
+        [JsonPropertyName("coordinates")]
         public Position[][] Coordinates { get; }
 
         /// <summary>
@@ -163,7 +163,7 @@ public class Polygon : Geometry
         /// <summary>
         /// The coordinates of the geometry.
         /// </summary>
-        [JsonProperty("coordinates")]
+        [JsonPropertyName("coordinates")]
         public Position[][] Coordinates { get; }
 
         /// <summary>
@@ -225,7 +225,7 @@ public class MultiPolygon : Geometry
         /// <summary>
         /// The coordinates of the geometry.
         /// </summary>
-        [JsonProperty("coordinates")]
+        [JsonPropertyName("coordinates")]
         public Position[][] Coordinates { get; }
 
         /// <summary>
@@ -247,7 +247,7 @@ public MultiPolygon(Position[][] coordinates)
     /// </summary>
     public class GeometryCollection
     {
-        [JsonProperty("geometries")]
+        [JsonPropertyName("geometries")]
         Geometry[] Geometries { get; }
 
         /// <summary>
diff --git a/Elements/src/GeoJSON/Position.cs b/Elements/src/GeoJSON/Position.cs
index aae8de6c5..fbd6b45c3 100644
--- a/Elements/src/GeoJSON/Position.cs
+++ b/Elements/src/GeoJSON/Position.cs
@@ -11,11 +11,11 @@ namespace Elements.GeoJSON
     public class Position
     {
         /// <summary>The latitude in decimal degrees.</summary>
-        [JsonProperty("latitude", Required = Required.Always)]
+        [JsonPropertyName("latitude")]
         public double Latitude { get; set; }
 
         /// <summary>The longitude in decimal degrees.</summary>
-        [JsonProperty("longitude", Required = Required.Always)]
+        [JsonPropertyName("longitude")]
         public double Longitude { get; set; }
 
         /// <summary>
diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index ad570f015..35279830f 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -16,7 +16,7 @@ namespace Elements
     public class GeometricElement : Element
     {
         /// <summary>The element's transform.</summary>
-        [JsonProperty("Transform", Required = Required.AllowNull)]
+        [JsonPropertyName("Transform")]
         public Transform Transform { get; set; }
 
         /// <summary>The element's material.</summary>
@@ -25,11 +25,11 @@ public class GeometricElement : Element
         public Material Material { get; set; }
 
         /// <summary>The element's representation.</summary>
-        [JsonProperty("Representation", Required = Required.AllowNull)]
+        [JsonPropertyName("Representation")]
         public Representation Representation { get; set; }
 
         /// <summary>When true, this element will act as the base definition for element instances, and will not appear in visual output.</summary>
-        [JsonProperty("IsElementDefinition", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("IsElementDefinition")]
         public bool IsElementDefinition { get; set; } = false;
 
         /// <summary>
diff --git a/Elements/src/Geometry/Arc.cs b/Elements/src/Geometry/Arc.cs
index b3fef76fc..f0541cb30 100644
--- a/Elements/src/Geometry/Arc.cs
+++ b/Elements/src/Geometry/Arc.cs
@@ -14,21 +14,21 @@ namespace Elements.Geometry
     public partial class Arc : Curve, IEquatable<Arc>
     {
         /// <summary>The center of the arc.</summary>
-        [JsonProperty("Center", Required = Required.AllowNull)]
+        [JsonPropertyName("Center")]
         public Vector3 Center { get; set; }
 
         /// <summary>The radius of the arc.</summary>
-        [JsonProperty("Radius", Required = Required.Always)]
+        [JsonPropertyName("Radius")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, double.MaxValue)]
         public double Radius { get; set; }
 
         /// <summary>The angle from 0.0, in degrees, at which the arc will start with respect to the positive X axis.</summary>
-        [JsonProperty("StartAngle", Required = Required.Always)]
+        [JsonPropertyName("StartAngle")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 360.0D)]
         public double StartAngle { get; set; }
 
         /// <summary>The angle from 0.0, in degrees, at which the arc will end with respect to the positive X axis.</summary>
-        [JsonProperty("EndAngle", Required = Required.Always)]
+        [JsonPropertyName("EndAngle")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 360.0D)]
         public double EndAngle { get; set; }
 
diff --git a/Elements/src/Geometry/BBox3.cs b/Elements/src/Geometry/BBox3.cs
index 067573b04..114b96629 100644
--- a/Elements/src/Geometry/BBox3.cs
+++ b/Elements/src/Geometry/BBox3.cs
@@ -12,11 +12,11 @@ namespace Elements.Geometry
     public struct BBox3
     {
         /// <summary>The minimum extent of the bounding box.</summary>
-        [JsonProperty("Min", Required = Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Min")]
         public Vector3 Min { get; set; }
 
         /// <summary>The maximum extent of the bounding box.</summary>
-        [JsonProperty("Max", Required = Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Max")]
         public Vector3 Max { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Color.cs b/Elements/src/Geometry/Color.cs
index e567fc1cd..9e81bb714 100644
--- a/Elements/src/Geometry/Color.cs
+++ b/Elements/src/Geometry/Color.cs
@@ -9,22 +9,22 @@ namespace Elements.Geometry
     public struct Color : IEquatable<Color>
     {
         /// <summary>The red component of the color between 0.0 and 1.0.</summary>
-        [JsonProperty("Red", Required = Required.Always)]
+        [JsonPropertyName("Red")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double Red { get; set; }
 
         /// <summary>The green component of the color between 0.0 and 1.0.</summary>
-        [JsonProperty("Green", Required = Required.Always)]
+        [JsonPropertyName("Green")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double Green { get; set; }
 
         /// <summary>The blue component of the color between 0.0 and 1.0.</summary>
-        [JsonProperty("Blue", Required = Required.Always)]
+        [JsonPropertyName("Blue")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double Blue { get; set; }
 
         /// <summary>The alpha component of the color between 0.0 and 1.0.</summary>
-        [JsonProperty("Alpha", Required = Required.Always)]
+        [JsonPropertyName("Alpha")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double Alpha { get; set; }
 
diff --git a/Elements/src/Geometry/Line.cs b/Elements/src/Geometry/Line.cs
index cc4aa9e19..e777e4d16 100644
--- a/Elements/src/Geometry/Line.cs
+++ b/Elements/src/Geometry/Line.cs
@@ -17,11 +17,11 @@ namespace Elements.Geometry
     public class Line : Curve, IEquatable<Line>
     {
         /// <summary>The start of the line.</summary>
-        [JsonProperty("Start", Required = Required.AllowNull)]
+        [JsonPropertyName("Start")]
         public Vector3 Start { get; set; }
 
         /// <summary>The end of the line.</summary>
-        [JsonProperty("End", Required = Required.AllowNull)]
+        [JsonPropertyName("End")]
         public Vector3 End { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Matrix.cs b/Elements/src/Geometry/Matrix.cs
index 91ad37547..c2eb81a2e 100644
--- a/Elements/src/Geometry/Matrix.cs
+++ b/Elements/src/Geometry/Matrix.cs
@@ -12,7 +12,7 @@ namespace Elements.Geometry
     public partial class Matrix : IEquatable<Matrix>
     {
         /// <summary>The components of the matrix.</summary>
-        [JsonProperty("Components", Required = Required.Always)]
+        [JsonPropertyName("Components")]
         [System.ComponentModel.DataAnnotations.Required]
         [System.ComponentModel.DataAnnotations.MinLength(12)]
         [System.ComponentModel.DataAnnotations.MaxLength(12)]
diff --git a/Elements/src/Geometry/Mesh.cs b/Elements/src/Geometry/Mesh.cs
index c1fa3ab77..0b17a2e6d 100644
--- a/Elements/src/Geometry/Mesh.cs
+++ b/Elements/src/Geometry/Mesh.cs
@@ -19,11 +19,11 @@ public partial class Mesh
         private PointOctree<Vertex> _octree = new PointOctree<Vertex>(100000, new Octree.Point(0f, 0f, 0f), (float)Vector3.EPSILON);
 
         /// <summary>The mesh' vertices.</summary>
-        [JsonProperty("Vertices", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Vertices")]
         public IList<Vertex> Vertices { get; set; }
 
         /// <summary>The mesh' triangles.</summary>
-        [JsonProperty("Triangles", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Triangles")]
         public IList<Triangle> Triangles { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Plane.cs b/Elements/src/Geometry/Plane.cs
index 39eb6c2aa..909e2ef2d 100644
--- a/Elements/src/Geometry/Plane.cs
+++ b/Elements/src/Geometry/Plane.cs
@@ -11,11 +11,11 @@ namespace Elements.Geometry
     public partial class Plane : IEquatable<Plane>
     {
         /// <summary>The origin of the plane.</summary>
-        [JsonProperty("Origin", Required = Required.AllowNull)]
+        [JsonPropertyName("Origin")]
         public Vector3 Origin { get; set; }
 
         /// <summary>The normal of the plane.</summary>
-        [JsonProperty("Normal", Required = Required.AllowNull)]
+        [JsonPropertyName("Normal")]
         public Vector3 Normal { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Polyline.cs b/Elements/src/Geometry/Polyline.cs
index f5290129e..661011bb3 100644
--- a/Elements/src/Geometry/Polyline.cs
+++ b/Elements/src/Geometry/Polyline.cs
@@ -23,7 +23,7 @@ public class Polyline : Curve, IEquatable<Polyline>
         internal BBox3 _bounds;
 
         /// <summary>The vertices of the polygon.</summary>
-        [JsonProperty("Vertices", Required = Required.Always)]
+        [JsonPropertyName("Vertices")]
         [System.ComponentModel.DataAnnotations.Required]
         [System.ComponentModel.DataAnnotations.MinLength(2)]
         public IList<Vector3> Vertices { get; set; } = new List<Vector3>();
diff --git a/Elements/src/Geometry/Profile.cs b/Elements/src/Geometry/Profile.cs
index f9cac6e7f..13f1a6fda 100644
--- a/Elements/src/Geometry/Profile.cs
+++ b/Elements/src/Geometry/Profile.cs
@@ -13,11 +13,11 @@ namespace Elements.Geometry
     public class Profile : Element, IEquatable<Profile>
     {
         /// <summary>The perimeter of the profile.</summary>
-        [JsonProperty("Perimeter", Required = Required.AllowNull)]
+        [JsonPropertyName("Perimeter", Required = Required.AllowNull)]
         public Polygon Perimeter { get; set; }
 
         /// <summary>A collection of Polygons representing voids in the profile.</summary>
-        [JsonProperty("Voids", Required = Required.AllowNull)]
+        [JsonPropertyName("Voids", Required = Required.AllowNull)]
         public IList<Polygon> Voids { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Representation.cs b/Elements/src/Geometry/Representation.cs
index babeca465..6877090e9 100644
--- a/Elements/src/Geometry/Representation.cs
+++ b/Elements/src/Geometry/Representation.cs
@@ -8,7 +8,7 @@ namespace Elements.Geometry
     public class Representation
     {
         /// <summary>A collection of solid operations.</summary>
-        [JsonProperty("SolidOperations", Required = Required.Always)]
+        [JsonPropertyName("SolidOperations")]
         [System.ComponentModel.DataAnnotations.Required]
         public IList<SolidOperation> SolidOperations { get; set; } = new List<SolidOperation>();
 
diff --git a/Elements/src/Geometry/Solids/ConstructedSolid.cs b/Elements/src/Geometry/Solids/ConstructedSolid.cs
index fd2f7bd28..1e454aa8a 100644
--- a/Elements/src/Geometry/Solids/ConstructedSolid.cs
+++ b/Elements/src/Geometry/Solids/ConstructedSolid.cs
@@ -20,7 +20,7 @@ public ConstructedSolid(Solid solid, bool isVoid = false) : base(isVoid)
 
         // This is a hack to get the normally JsonIgnored
         // `Solid` property to serialize.
-        [JsonProperty("Solid")]
+        [JsonPropertyName("Solid")]
         [JsonConverter(typeof(SolidConverter))]
         internal Solid InternalSolid => base.Solid;
     }
diff --git a/Elements/src/Geometry/Solids/Extrude.cs b/Elements/src/Geometry/Solids/Extrude.cs
index 4218de03a..3bc676f2d 100644
--- a/Elements/src/Geometry/Solids/Extrude.cs
+++ b/Elements/src/Geometry/Solids/Extrude.cs
@@ -31,7 +31,7 @@ public Profile Profile
         }
 
         /// <summary>The height of the extrusion.</summary>
-        [JsonProperty("Height", Required = Required.Always)]
+        [JsonPropertyName("Height")]
         [System.ComponentModel.DataAnnotations.Range(0D, double.MaxValue)]
         public double Height
         {
@@ -47,7 +47,7 @@ public double Height
         }
 
         /// <summary>The direction in which to extrude.</summary>
-        [JsonProperty("Direction", Required = Required.AllowNull)]
+        [JsonPropertyName("Direction")]
         public Vector3 Direction
         {
             get { return _direction; }
diff --git a/Elements/src/Geometry/Solids/Lamina.cs b/Elements/src/Geometry/Solids/Lamina.cs
index ceba84eea..76714de2f 100644
--- a/Elements/src/Geometry/Solids/Lamina.cs
+++ b/Elements/src/Geometry/Solids/Lamina.cs
@@ -12,7 +12,7 @@ public class Lamina : SolidOperation
         private IList<Polygon> _voids;
 
         /// <summary>The perimeter.</summary>
-        [JsonProperty("Perimeter", Required = Required.AllowNull)]
+        [JsonPropertyName("Perimeter")]
         public Polygon Perimeter
         {
             get { return _perimeter; }
@@ -29,7 +29,7 @@ public Polygon Perimeter
         /// <summary>
         /// A collection of voids.
         /// </summary>
-        [JsonProperty("Voids", Required = Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Voids")]
         public IList<Polygon> Voids
         {
             get { return _voids; }
diff --git a/Elements/src/Geometry/Solids/SolidOperation.cs b/Elements/src/Geometry/Solids/SolidOperation.cs
index 92b03d7bd..83d5ce402 100644
--- a/Elements/src/Geometry/Solids/SolidOperation.cs
+++ b/Elements/src/Geometry/Solids/SolidOperation.cs
@@ -21,14 +21,13 @@ public abstract class SolidOperation
         /// The solid operation's solid.
         /// </summary>
         [JsonIgnore]
-        [System.Text.Json.Serialization.JsonIgnore]
         public Solid Solid
         {
             get { return _solid; }
         }
 
         /// <summary>Is the solid operation a void operation?</summary>
-        [JsonProperty("IsVoid", Required = Required.Always)]
+        [JsonPropertyName("IsVoid")]
         public bool IsVoid { get; set; } = false;
 
         /// <summary>
diff --git a/Elements/src/Geometry/Solids/Sweep.cs b/Elements/src/Geometry/Solids/Sweep.cs
index 5ce453e05..5fd23af7e 100644
--- a/Elements/src/Geometry/Solids/Sweep.cs
+++ b/Elements/src/Geometry/Solids/Sweep.cs
@@ -54,7 +54,7 @@ public Profile Profile
         }
 
         /// <summary>The curve along which the profile will be swept.</summary>
-        [JsonProperty("Curve", Required = Required.AllowNull)]
+        [JsonPropertyName("Curve")]
         public Curve Curve
         {
             get { return _curve; }
@@ -69,7 +69,7 @@ public Curve Curve
         }
 
         /// <summary>The amount to set back the resulting solid from the start of the curve.</summary>
-        [JsonProperty("StartSetback", Required = Required.Always)]
+        [JsonPropertyName("StartSetback")]
         public double StartSetback
         {
             get { return _startSetback; }
@@ -84,7 +84,7 @@ public double StartSetback
         }
 
         /// <summary>The amount to set back the resulting solid from the end of the curve.</summary>
-        [JsonProperty("EndSetback", Required = Required.Always)]
+        [JsonPropertyName("EndSetback")]
         public double EndSetback
         {
             get { return _endSetback; }
@@ -99,7 +99,7 @@ public double EndSetback
         }
 
         /// <summary>The rotation of the profile around the sweep's curve.</summary>
-        [JsonProperty("ProfileRotation", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("ProfileRotation")]
         public double ProfileRotation
         {
             get { return _profileRotation; }
diff --git a/Elements/src/Geometry/Transform.cs b/Elements/src/Geometry/Transform.cs
index 6ff531550..47135daac 100644
--- a/Elements/src/Geometry/Transform.cs
+++ b/Elements/src/Geometry/Transform.cs
@@ -37,7 +37,7 @@ public partial class Transform : IEquatable<Transform>
         public Vector3 ZAxis => this.Matrix.ZAxis;
 
         /// <summary>The transform's matrix.</summary>
-        [JsonProperty("Matrix", Required = Required.Always)]
+        [JsonPropertyName("Matrix")]
         [System.ComponentModel.DataAnnotations.Required]
         public Matrix Matrix { get; set; } = new Matrix();
 
diff --git a/Elements/src/Geometry/Triangle.cs b/Elements/src/Geometry/Triangle.cs
index 8034cb934..55e453608 100644
--- a/Elements/src/Geometry/Triangle.cs
+++ b/Elements/src/Geometry/Triangle.cs
@@ -12,12 +12,12 @@ namespace Elements.Geometry
     public class Triangle
     {
         /// <summary>The triangle's vertices.</summary>
-        [JsonProperty("Vertices", Required = Required.Always)]
+        [JsonPropertyName("Vertices")]
         [System.ComponentModel.DataAnnotations.Required]
         public IList<Vertex> Vertices { get; set; } = new List<Vertex>();
 
         /// <summary>The triangle's normal.</summary>
-        [JsonProperty("Normal", Required = Required.AllowNull)]
+        [JsonPropertyName("Normal")]
         public Vector3 Normal { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/UV.cs b/Elements/src/Geometry/UV.cs
index 06e41e0e7..13c38c384 100644
--- a/Elements/src/Geometry/UV.cs
+++ b/Elements/src/Geometry/UV.cs
@@ -8,11 +8,11 @@ namespace Elements.Geometry
     public struct UV
     {
         /// <summary>The U coordinate.</summary>
-        [JsonProperty("U", Required = Required.Always)]
+        [JsonPropertyName("U")]
         public double U { get; set; }
 
         /// <summary>The V coordinate.</summary>
-        [JsonProperty("V", Required = Required.Always)]
+        [JsonPropertyName("V")]
         public double V { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Vector3.cs b/Elements/src/Geometry/Vector3.cs
index 150f0de2d..bd0d9b611 100644
--- a/Elements/src/Geometry/Vector3.cs
+++ b/Elements/src/Geometry/Vector3.cs
@@ -48,15 +48,15 @@ public Vector3(double @x, double @y, double @z)
         }
 
         /// <summary>The X component of the vector.</summary>
-        [JsonProperty("X", Required = Required.Always)]
+        [JsonPropertyName("X")]
         public double X { get; set; }
 
         /// <summary>The Y component of the vector.</summary>
-        [JsonProperty("Y", Required = Required.Always)]
+        [JsonPropertyName("Y")]
         public double Y { get; set; }
 
         /// <summary>The Z component of the vector.</summary>
-        [JsonProperty("Z", Required = Required.Always)]
+        [JsonPropertyName("Z")]
         public double Z { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Vertex.cs b/Elements/src/Geometry/Vertex.cs
index e736602e6..0a1339fde 100644
--- a/Elements/src/Geometry/Vertex.cs
+++ b/Elements/src/Geometry/Vertex.cs
@@ -9,24 +9,24 @@ namespace Elements.Geometry
     public class Vertex
     {
         /// <summary>The vertex's position.</summary>
-        [JsonProperty("Position", Required = Required.AllowNull)]
+        [JsonPropertyName("Position")]
         public Vector3 Position { get; set; }
 
         /// <summary>The vertex's normal.</summary>
-        [JsonProperty("Normal", Required = Required.AllowNull)]
+        [JsonPropertyName("Normal")]
         public Vector3 Normal { get; set; }
 
         /// <summary>The vertex's color.</summary>
-        [JsonProperty("Color", Required = Required.Always)]
+        [JsonPropertyName("Color")]
         [System.ComponentModel.DataAnnotations.Required]
         public Color Color { get; set; } = new Color();
 
         /// <summary>The index of the vertex within a mesh.</summary>
-        [JsonProperty("Index", Required = Required.Always)]
+        [JsonPropertyName("Index")]
         public int Index { get; set; }
 
         /// <summary>The vertex's texture coordinate.</summary>
-        [JsonProperty("UV", Required = Required.Always)]
+        [JsonPropertyName("UV")]
         [System.ComponentModel.DataAnnotations.Required]
         public UV UV { get; set; } = new UV();
 
@@ -53,7 +53,7 @@ public Vertex(Vector3 @position, Vector3 @normal, Color @color, int @index, UV @
         // during serialization.
 
         /// <summary>The triangles associated with this vertex.</summary>
-        [JsonProperty("Triangles", Required = Required.Always)]
+        [JsonPropertyName("Triangles")]
         [System.ComponentModel.DataAnnotations.Required]
         [JsonIgnore]
         public IList<Triangle> Triangles { get; set; } = new List<Triangle>();
diff --git a/Elements/src/GeometryReference.cs b/Elements/src/GeometryReference.cs
index da205a2aa..1c60d7467 100644
--- a/Elements/src/GeometryReference.cs
+++ b/Elements/src/GeometryReference.cs
@@ -8,11 +8,11 @@ namespace Elements
     public partial class GeometryReference
     {
         /// <summary>The URL where the referenced geometry is hosted.</summary>
-        [JsonProperty("GeometryUrl", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("GeometryUrl")]
         public string GeometryUrl { get; set; }
 
         /// <summary>Any geometric data directly contained in this reference.</summary>
-        [JsonProperty("InternalGeometry", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("InternalGeometry")]
         public IList<object> InternalGeometry { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Material.cs b/Elements/src/Material.cs
index d95e1476d..bac4ef50e 100644
--- a/Elements/src/Material.cs
+++ b/Elements/src/Material.cs
@@ -16,52 +16,52 @@ namespace Elements
     public class Material : Element
     {
         /// <summary>The material's color.</summary>
-        [JsonProperty("Color", Required = Required.Always)]
+        [JsonPropertyName("Color")]
         [System.ComponentModel.DataAnnotations.Required]
         public Color Color { get; set; } = new Color();
 
         /// <summary>The specular factor between 0.0 and 1.0.</summary>
-        [JsonProperty("SpecularFactor", Required = Required.Always)]
+        [JsonPropertyName("SpecularFactor")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double SpecularFactor { get; set; } = 0.1D;
 
         /// <summary>The glossiness factor between 0.0 and 1.0.</summary>
-        [JsonProperty("GlossinessFactor", Required = Required.Always)]
+        [JsonPropertyName("GlossinessFactor")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double GlossinessFactor { get; set; } = 0.1D;
 
         /// <summary>Is this material affected by lights?</summary>
-        [JsonProperty("Unlit", Required = Required.DisallowNull, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("Unlit")]
         public bool Unlit { get; set; } = false;
 
         /// <summary>A relative file path to an image file to be used as a texture.</summary>
-        [JsonProperty("Texture", Required = Required.Default, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("Texture")]
         public string Texture { get; set; }
 
         /// <summary>Is this material to be rendered from both sides?</summary>
-        [JsonProperty("DoubleSided", Required = Required.DisallowNull, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("DoubleSided")]
         public bool DoubleSided { get; set; } = false;
 
         /// <summary>Should the texture be repeated? The RepeatTexture property determines whether textures are clamped in the [0,0]-&gt;[1,1] range or repeat continuously.</summary>
-        [JsonProperty("RepeatTexture", Required = Required.DisallowNull, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("RepeatTexture")]
         public bool RepeatTexture { get; set; } = true;
 
         /// <summary>A relative path to a jpg or png image file to be used as a normal texture.</summary>
-        [JsonProperty("NormalTexture", Required = Required.Default, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("NormalTexture")]
         public string NormalTexture { get; set; }
 
         /// <summary>Should the texture colors be interpolated between pixels? If false, renders hard pixels in the texture rather than fading between adjacent pixels.</summary>
-        [JsonProperty("InterpolateTexture", Required = Required.DisallowNull, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("InterpolateTexture")]
         public bool InterpolateTexture { get; set; } = true;
 
         /// <summary>A relative path to a jpg or png image file to be used as an emissive texture.</summary>
-        [JsonProperty("EmissiveTexture", Required = Required.Default, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("EmissiveTexture")]
         public string EmissiveTexture { get; set; }
 
         /// <summary>
         /// The scale, between 0.0 and 1.0, of the emissive texture's components.
         /// </summary>
-        [JsonProperty("EmissiveFactor", Required = Required.Default, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("EmissiveFactor")]
         public double EmissiveFactor { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 353060b92..7cc0cc908 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -23,16 +23,16 @@ namespace Elements
     public class Model
     {
         /// <summary>The origin of the model.</summary>
-        [JsonProperty("Origin", Required = Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Origin")]
         [Obsolete("Use Transform instead.")]
         public Position Origin { get; set; }
 
         /// <summary>The transform of the model.</summary>
-        [JsonProperty("Transform", Required = Required.AllowNull)]
+        [JsonPropertyName("Transform")]
         public Transform Transform { get; set; }
 
         /// <summary>A collection of Elements keyed by their identifiers.</summary>
-        [JsonProperty("Elements", Required = Required.Always)]
+        [JsonPropertyName("Elements")]
         [System.ComponentModel.DataAnnotations.Required]
         public System.Collections.Generic.IDictionary<Guid, Element> Elements { get; set; } = new System.Collections.Generic.Dictionary<Guid, Element>();
 
diff --git a/Elements/src/Spatial/Grid1d.cs b/Elements/src/Spatial/Grid1d.cs
index 96d81c738..eaa4c4a98 100644
--- a/Elements/src/Spatial/Grid1d.cs
+++ b/Elements/src/Spatial/Grid1d.cs
@@ -28,7 +28,7 @@ public class Grid1d
         /// <summary>
         /// Child cells of this Grid. If null, this Grid is a complete cell with no subdivisions.
         /// </summary>
-        [JsonProperty("Cells", NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("Cells")]
         public List<Grid1d> Cells
         {
             get => cells;
@@ -91,7 +91,7 @@ public Curve Curve
         // we have to maintain an internal curve domain because subsequent subdivisions of a grid
         // based on a curve retain the entire curve; this domain allows us to map from the subdivided
         // domain back to the original curve.
-        [JsonProperty("CurveDomain")]
+        [JsonPropertyName("CurveDomain")]
         internal readonly Domain1d curveDomain;
 
         // if this 1d grid is the axis of a 2d grid, this is where we store that reference. If not, it will be null
@@ -101,7 +101,7 @@ public Curve Curve
         // is useful in serialization so we only store the base curve once. 
         private Grid1d topLevelParentGrid;
 
-        [JsonProperty("TopLevelParentCurve", NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("TopLevelParentCurve")]
         private Curve topLevelParentCurve
         {
             get
diff --git a/Elements/src/Spatial/Grid2d.cs b/Elements/src/Spatial/Grid2d.cs
index ce7937564..c214afb71 100644
--- a/Elements/src/Spatial/Grid2d.cs
+++ b/Elements/src/Spatial/Grid2d.cs
@@ -51,29 +51,29 @@ public string Type
         /// <summary>
         /// A transform from grid space to world space
         /// </summary>
-        [JsonProperty("FromGrid")]
+        [JsonPropertyName("FromGrid")]
         internal Transform fromGrid = new Transform();
 
         /// <summary>
         /// A transform from world space to grid space
         /// </summary>
-        [JsonProperty("ToGrid")]
+        [JsonPropertyName("ToGrid")]
         internal Transform toGrid = new Transform();
 
-        [JsonProperty("UDomainInternal")]
+        [JsonPropertyName("UDomainInternal")]
         private Domain1d UDomainInternal = new Domain1d(0, 0);
 
-        [JsonProperty("VDomainInternal")]
+        [JsonPropertyName("VDomainInternal")]
         private Domain1d VDomainInternal = new Domain1d(0, 0);
 
         /// <summary>
         /// Any boundary curves, transformed to grid space.
         /// </summary>
-        [JsonProperty("BoundariesInGridSpace", NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("BoundariesInGridSpace")]
         private IList<Polygon> boundariesInGridSpace;
         private List<List<Grid2d>> cells;
 
-        [JsonProperty("ModifiedChildCells", NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("ModifiedChildCells")]
         internal List<IndexedCell> ModifiedChildCells => GetModifiedChildCells();
 
         // for serialization purposes, we store only those cells that are not a natural consequence of the U and V 1d grids composing this grid.
diff --git a/Elements/src/Symbol.cs b/Elements/src/Symbol.cs
index a527e4449..bd55e8943 100644
--- a/Elements/src/Symbol.cs
+++ b/Elements/src/Symbol.cs
@@ -17,11 +17,11 @@ public class Symbol
         /// <summary>
         /// The geometry of the symbol.
         /// </summary>
-        [JsonProperty("Geometry", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Geometry")]
         public GeometryReference Geometry { get; set; }
 
         /// <summary>A named camera position for this representation, indicating the direction from which the camera is looking (a top view looks from top down, a north view looks from north to south.)</summary>
-        [JsonProperty("CameraPosition", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("CameraPosition")]
         [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
         public SymbolCameraPosition CameraPosition { get; set; }
 
diff --git a/Elements/src/WallByProfile.cs b/Elements/src/WallByProfile.cs
index 3800ba8b0..58ec5ffae 100644
--- a/Elements/src/WallByProfile.cs
+++ b/Elements/src/WallByProfile.cs
@@ -14,18 +14,18 @@ namespace Elements
     public class WallByProfile : Wall
     {
         /// <summary>The overall thickness of the Wall</summary>
-        [JsonProperty("Thickness", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Thickness")]
         public double Thickness { get; set; }
 
         /// <summary>
         /// The perimeter of the Wall's elevation.  It is assumed to be in the same Plane as the Centerline,
         /// and will often be projected to that Plane during internal operations.
         /// </summary>
-        [JsonProperty("Perimeter", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Perimeter")]
         public Polygon Perimeter { get; set; }
 
         /// <summary>The Centerline of the wall</summary>
-        [JsonProperty("Centerline", Required = Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Centerline")]
         public Line Centerline { get; set; }
 
         /// <summary>
diff --git a/Elements/test/Grid2dElement.cs b/Elements/test/Grid2dElement.cs
index 9a55eb410..c815d8622 100644
--- a/Elements/test/Grid2dElement.cs
+++ b/Elements/test/Grid2dElement.cs
@@ -10,7 +10,7 @@ namespace Elements
     public partial class Grid2dElement : Element
     {
         /// <summary>contains a grid</summary>
-        [JsonProperty("Grid", Required = Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Grid")]
         public Grid2d Grid { get; set; }
 
         [JsonConstructor]
diff --git a/Elements/test/MeshTests.cs b/Elements/test/MeshTests.cs
index a73b0ea96..873df21c8 100644
--- a/Elements/test/MeshTests.cs
+++ b/Elements/test/MeshTests.cs
@@ -53,7 +53,7 @@ public InputsWithMesh(Mesh @mesh, string bucketName, string uploadsBucket, Dicti
                 this.Mesh = @mesh;
             }
 
-            [JsonProperty("Mesh", Required = Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+            [JsonPropertyName("Mesh")]
             public Mesh Mesh { get; set; }
         }
     }

From f7d69467ae7dffaa909a72a5d4cefd353f5bff5e Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Apr 2022 14:19:22 -0700
Subject: [PATCH 026/150] Replace inheritance converter with
 ElementConverter<T>

---
 Elements/src/ContentCatalog.cs                 | 2 +-
 Elements/src/ContentElement.cs                 | 3 ++-
 Elements/src/GeometricElement.cs               | 2 +-
 Elements/src/Geometry/BBox3.cs                 | 3 ++-
 Elements/src/Geometry/Curve.cs                 | 3 +--
 Elements/src/Geometry/Solids/SolidOperation.cs | 3 +--
 Elements/src/GeometryReference.cs              | 3 ++-
 Elements/src/Spatial/Grid1d.cs                 | 3 +--
 Elements/src/Spatial/Grid2d.cs                 | 3 +--
 Elements/src/WallByProfile.cs                  | 3 ++-
 Elements/test/Grid2dElement.cs                 | 3 +--
 11 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/Elements/src/ContentCatalog.cs b/Elements/src/ContentCatalog.cs
index 3301fb9af..0bcabcc35 100644
--- a/Elements/src/ContentCatalog.cs
+++ b/Elements/src/ContentCatalog.cs
@@ -9,7 +9,7 @@ namespace Elements
     /// <summary>
     /// A collection of content elements.
     /// </summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [JsonConverter(typeof(ElementConverter<ContentCatalog>))]
     public class ContentCatalog : Element
     {
         /// <summary>The content elements in this catalog.</summary>
diff --git a/Elements/src/ContentElement.cs b/Elements/src/ContentElement.cs
index d968bfd1d..27a412866 100644
--- a/Elements/src/ContentElement.cs
+++ b/Elements/src/ContentElement.cs
@@ -2,13 +2,14 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
     /// <summary>
     /// An element representing user content.
     /// </summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [JsonConverter(typeof(ElementConverter<ContentElement>))]
     public class ContentElement : GeometricElement
     {
         /// <summary>The URI of the gltf for this element.</summary>
diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index 35279830f..89cb391f7 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -12,7 +12,7 @@ namespace Elements
     /// <summary>
     /// An element with a geometric representation.
     /// </summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [JsonConverter(typeof(ElementConverter<GeometricElement>))]
     public class GeometricElement : Element
     {
         /// <summary>The element's transform.</summary>
diff --git a/Elements/src/Geometry/BBox3.cs b/Elements/src/Geometry/BBox3.cs
index 114b96629..b6b760dd5 100644
--- a/Elements/src/Geometry/BBox3.cs
+++ b/Elements/src/Geometry/BBox3.cs
@@ -2,13 +2,14 @@
 using System.Text.Json.Serialization;
 using System.Collections.Generic;
 using System.Linq;
+using Elements.Serialization.JSON;
 
 namespace Elements.Geometry
 {
     /// <summary>
     /// An axis-aligned bounding box.
     /// </summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [JsonConverter(typeof(ElementConverter<BBox3>))]
     public struct BBox3
     {
         /// <summary>The minimum extent of the bounding box.</summary>
diff --git a/Elements/src/Geometry/Curve.cs b/Elements/src/Geometry/Curve.cs
index bcef6ca69..4fad29a05 100644
--- a/Elements/src/Geometry/Curve.cs
+++ b/Elements/src/Geometry/Curve.cs
@@ -8,8 +8,7 @@ namespace Elements.Geometry
     /// <summary>
     /// The abstract base class for all curves.
     /// </summary>
-    [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
-    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Curve>))]
+    [JsonConverter(typeof(ElementConverter<Curve>))]
     public abstract partial class Curve : ICurve, ITransformable<Curve>
     {
         /// <summary>
diff --git a/Elements/src/Geometry/Solids/SolidOperation.cs b/Elements/src/Geometry/Solids/SolidOperation.cs
index 83d5ce402..7822e95d7 100644
--- a/Elements/src/Geometry/Solids/SolidOperation.cs
+++ b/Elements/src/Geometry/Solids/SolidOperation.cs
@@ -6,8 +6,7 @@ namespace Elements.Geometry.Solids
     /// <summary>
     /// The base class for all operations which create solids.
     /// </summary>
-    [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
-    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<SolidOperation>))]
+    [JsonConverter(typeof(ElementConverter<SolidOperation>))]
     public abstract class SolidOperation
     {
         internal Solid _solid;
diff --git a/Elements/src/GeometryReference.cs b/Elements/src/GeometryReference.cs
index 1c60d7467..08fb8f95b 100644
--- a/Elements/src/GeometryReference.cs
+++ b/Elements/src/GeometryReference.cs
@@ -1,10 +1,11 @@
 using System.Collections.Generic;
 using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
     /// <summary>A reference to a model, hosted at a URL.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [JsonConverter(typeof(ElementConverter<GeometryReference>))]
     public partial class GeometryReference
     {
         /// <summary>The URL where the referenced geometry is hosted.</summary>
diff --git a/Elements/src/Spatial/Grid1d.cs b/Elements/src/Spatial/Grid1d.cs
index eaa4c4a98..12e93d42a 100644
--- a/Elements/src/Spatial/Grid1d.cs
+++ b/Elements/src/Spatial/Grid1d.cs
@@ -14,8 +14,7 @@ namespace Elements.Spatial
     /// <example>
     /// [!code-csharp[Main](../../Elements/test/Grid1dTests.cs?name=example)]
     /// </example>
-    [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
-    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Grid1d>))]
+    [JsonConverter(typeof(ElementConverter<Grid1d>))]
     public class Grid1d
     {
         #region Properties
diff --git a/Elements/src/Spatial/Grid2d.cs b/Elements/src/Spatial/Grid2d.cs
index c214afb71..06266500a 100644
--- a/Elements/src/Spatial/Grid2d.cs
+++ b/Elements/src/Spatial/Grid2d.cs
@@ -14,8 +14,7 @@ namespace Elements.Spatial
     /// <example>
     /// [!code-csharp[Main](../../Elements/test/Grid2dTests.cs?name=example)]
     /// </example>
-    [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
-    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Grid2d>))]
+    [JsonConverter(typeof(ElementConverter<Grid2d>))]
     public class Grid2d
     {
         #region Properties
diff --git a/Elements/src/WallByProfile.cs b/Elements/src/WallByProfile.cs
index 58ec5ffae..8f54d8244 100644
--- a/Elements/src/WallByProfile.cs
+++ b/Elements/src/WallByProfile.cs
@@ -4,13 +4,14 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
     /// <summary>
     /// A wall drawn using the elevation profile
     /// </summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+    [JsonConverter(typeof(ElementConverter<WallByProfile>))]
     public class WallByProfile : Wall
     {
         /// <summary>The overall thickness of the Wall</summary>
diff --git a/Elements/test/Grid2dElement.cs b/Elements/test/Grid2dElement.cs
index c815d8622..ad004fd49 100644
--- a/Elements/test/Grid2dElement.cs
+++ b/Elements/test/Grid2dElement.cs
@@ -5,8 +5,7 @@
 namespace Elements
 {
     /// <summary>Just a test</summary>
-    [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
-    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Grid2dElement>))]
+    [JsonConverter(typeof(ElementConverter<Grid2dElement>))]
     public partial class Grid2dElement : Element
     {
         /// <summary>contains a grid</summary>

From def903f025c617c35dccb9367f92905109059b45 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Apr 2022 14:24:57 -0700
Subject: [PATCH 027/150] Cleanup all JsonConstructor.

---
 Elements/src/Geometry/Polygon.cs                    | 3 +--
 Elements/src/Geometry/Profile.cs                    | 3 +--
 Elements/src/Geometry/Profiles/WideFlangeProfile.cs | 1 -
 Elements/src/Geometry/Representation.cs             | 3 +--
 Elements/src/Geometry/Solids/Extrude.cs             | 3 +--
 Elements/src/Geometry/Solids/Lamina.cs              | 3 +--
 Elements/src/Geometry/Solids/SolidOperation.cs      | 3 +--
 Elements/src/Geometry/Solids/Sweep.cs               | 7 +++----
 8 files changed, 9 insertions(+), 17 deletions(-)

diff --git a/Elements/src/Geometry/Polygon.cs b/Elements/src/Geometry/Polygon.cs
index ad677ac65..3eef2e6d2 100644
--- a/Elements/src/Geometry/Polygon.cs
+++ b/Elements/src/Geometry/Polygon.cs
@@ -28,8 +28,7 @@ public partial class Polygon : Polyline
         /// Construct a polygon.
         /// </summary>
         /// <param name="vertices">A collection of vertex locations.</param>
-        [Newtonsoft.Json.JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
+        [JsonConstructor]
         public Polygon(IList<Vector3> @vertices) : base(vertices)
         {
             _plane = Plane();
diff --git a/Elements/src/Geometry/Profile.cs b/Elements/src/Geometry/Profile.cs
index 13f1a6fda..1b4badcf7 100644
--- a/Elements/src/Geometry/Profile.cs
+++ b/Elements/src/Geometry/Profile.cs
@@ -33,8 +33,7 @@ internal Profile() { }
         /// <param name="voids">A collection of voids in the profile.</param>
         /// <param name="id">The id of the profile.</param>
         /// <param name="name">The name of the profile.</param>
-        [Newtonsoft.Json.JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
+        [JsonConstructor]
         public Profile(Polygon @perimeter, IList<Polygon> @voids, Guid @id = default, string @name = null)
             : base(id, name)
         {
diff --git a/Elements/src/Geometry/Profiles/WideFlangeProfile.cs b/Elements/src/Geometry/Profiles/WideFlangeProfile.cs
index 8bd40febd..3e7f1a014 100644
--- a/Elements/src/Geometry/Profiles/WideFlangeProfile.cs
+++ b/Elements/src/Geometry/Profiles/WideFlangeProfile.cs
@@ -131,7 +131,6 @@ public class WideFlangeProfile : Profile
         /// <param name="tf"></param>
         /// <param name="tw"></param>
         [JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
         public WideFlangeProfile(string name,
                                  Guid id,
                                  double bf = 0.1,
diff --git a/Elements/src/Geometry/Representation.cs b/Elements/src/Geometry/Representation.cs
index 6877090e9..8ae0926d8 100644
--- a/Elements/src/Geometry/Representation.cs
+++ b/Elements/src/Geometry/Representation.cs
@@ -16,8 +16,7 @@ public class Representation
         /// Construct a representation.
         /// </summary>
         /// <param name="solidOperations">A collection of solid operations.</param>
-        [Newtonsoft.Json.JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
+        [JsonConstructor]
         public Representation(IList<SolidOperation> @solidOperations)
         {
             this.SolidOperations = @solidOperations;
diff --git a/Elements/src/Geometry/Solids/Extrude.cs b/Elements/src/Geometry/Solids/Extrude.cs
index 3bc676f2d..d7be17eb4 100644
--- a/Elements/src/Geometry/Solids/Extrude.cs
+++ b/Elements/src/Geometry/Solids/Extrude.cs
@@ -68,8 +68,7 @@ public Vector3 Direction
         /// <param name="height"></param>
         /// <param name="direction"></param>
         /// <param name="isVoid"></param>
-        [Newtonsoft.Json.JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
+        [JsonConstructor]
         public Extrude(Profile @profile, double @height, Vector3 @direction, bool @isVoid)
             : base(isVoid)
         {
diff --git a/Elements/src/Geometry/Solids/Lamina.cs b/Elements/src/Geometry/Solids/Lamina.cs
index 76714de2f..79e6af4cb 100644
--- a/Elements/src/Geometry/Solids/Lamina.cs
+++ b/Elements/src/Geometry/Solids/Lamina.cs
@@ -49,8 +49,7 @@ public IList<Polygon> Voids
         /// <param name="perimeter"></param>
         /// <param name="voids"></param>
         /// <param name="isVoid"></param>
-        [Newtonsoft.Json.JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
+        [JsonConstructor]
         public Lamina(Polygon @perimeter, IList<Polygon> @voids, bool @isVoid)
             : base(isVoid)
         {
diff --git a/Elements/src/Geometry/Solids/SolidOperation.cs b/Elements/src/Geometry/Solids/SolidOperation.cs
index 7822e95d7..4ebc395ed 100644
--- a/Elements/src/Geometry/Solids/SolidOperation.cs
+++ b/Elements/src/Geometry/Solids/SolidOperation.cs
@@ -33,8 +33,7 @@ public Solid Solid
         /// Construct a solid operation.
         /// </summary>
         /// <param name="isVoid"></param>
-        [Newtonsoft.Json.JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
+        [JsonConstructor]
         public SolidOperation(bool @isVoid)
         {
             this.IsVoid = @isVoid;
diff --git a/Elements/src/Geometry/Solids/Sweep.cs b/Elements/src/Geometry/Solids/Sweep.cs
index 5fd23af7e..16ac29e1f 100644
--- a/Elements/src/Geometry/Solids/Sweep.cs
+++ b/Elements/src/Geometry/Solids/Sweep.cs
@@ -22,8 +22,7 @@ public partial class Sweep : SolidOperation, System.ComponentModel.INotifyProper
         /// <param name="endSetback"></param>
         /// <param name="profileRotation"></param>
         /// <param name="isVoid"></param>
-        [Newtonsoft.Json.JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
+        [JsonConstructor]
         public Sweep(Profile @profile, Curve @curve, double @startSetback, double @endSetback, double @profileRotation, bool @isVoid)
             : base(isVoid)
         {
@@ -38,8 +37,8 @@ public Sweep(Profile @profile, Curve @curve, double @startSetback, double @endSe
         }
 
         /// <summary>The id of the profile to be swept along the curve.</summary>
-        [Newtonsoft.Json.JsonProperty("Profile", Required = Newtonsoft.Json.Required.AllowNull)]
-        [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Profile>))]
+        [JsonPropertyName("Profile")]
+        [JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile
         {
             get { return _profile; }

From c300c7d1cecc838ac607b21b1e7721e61401366f Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Apr 2022 14:37:45 -0700
Subject: [PATCH 028/150] Convert private fields with JsonProperty.

---
 Elements/src/Analysis/ColorScale.cs           |  7 +-
 .../src/Spatial/AdaptiveGrid/AdaptiveGrid.cs  | 26 ++++----
 .../src/Spatial/CellComplex/CellComplex.cs    | 66 +++++++++----------
 .../src/Spatial/CellComplex/DirectedEdge.cs   |  5 +-
 Elements/src/Spatial/CellComplex/Face.cs      | 18 ++---
 5 files changed, 59 insertions(+), 63 deletions(-)

diff --git a/Elements/src/Analysis/ColorScale.cs b/Elements/src/Analysis/ColorScale.cs
index b1981d3c2..ce8225f86 100644
--- a/Elements/src/Analysis/ColorScale.cs
+++ b/Elements/src/Analysis/ColorScale.cs
@@ -19,21 +19,18 @@ public class ColorScale
         /// <summary>
         /// The colors of the scale.
         /// </summary>
-        [JsonProperty]
         public List<Color> Colors { get; } = new List<Color>();
 
         /// <summary>
         /// The domain of the scale
         /// </summary>
-        [JsonProperty]
-        private List<Domain1d> Domains { get; } = null;
+        public List<Domain1d> Domains { get; } = null;
 
         /// <summary>
         /// Whether this scale is chunked into discrete bands.
         /// If false, values will be returned in a smooth gradient.
         /// </summary>
-        [JsonProperty]
-        private Boolean Discrete { get; } = false;
+        public Boolean Discrete { get; } = false;
 
         /// <summary>
         /// Create a ColorScale from a list of colors. The scale will automatically have a domain from 0 to 1.
diff --git a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
index 143da5862..4540a08e2 100644
--- a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
+++ b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
@@ -26,14 +26,14 @@ public class AdaptiveGrid
         /// <summary>
         /// Vertices by ID.
         /// </summary>
-        [JsonProperty]
-        private Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
+        [JsonPropertyName("_vertices")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public Dictionary<ulong, Vertex> Vertices = new Dictionary<ulong, Vertex>();
 
         /// <summary>
         /// Edges by ID.
         /// </summary>
-        [JsonProperty]
-        private Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
+        [JsonPropertyName("_edges")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public Dictionary<ulong, Edge> Edges = new Dictionary<ulong, Edge>();
 
         // See Edge.GetHash for how edges are identified as unique.
         private Dictionary<string, ulong> _edgesLookup = new Dictionary<string, ulong>();
@@ -261,7 +261,7 @@ public void SubtractBox(BBox3 box)
         /// <returns></returns>
         public Vertex GetVertex(ulong vertexId)
         {
-            this._vertices.TryGetValue(vertexId, out var vertex);
+            this.Vertices.TryGetValue(vertexId, out var vertex);
             return vertex;
         }
 
@@ -271,7 +271,7 @@ public Vertex GetVertex(ulong vertexId)
         /// <returns></returns>
         public List<Vertex> GetVertices()
         {
-            return this._vertices.Values.ToList();
+            return this.Vertices.Values.ToList();
         }
 
         /// <summary>
@@ -280,7 +280,7 @@ public List<Vertex> GetVertices()
         /// <returns></returns>
         public List<Edge> GetEdges()
         {
-            return this._edges.Values.ToList();
+            return this.Edges.Values.ToList();
         }
 
         /// <summary>
@@ -466,7 +466,7 @@ public Edge AddEdge(ulong vertexId1, ulong vertexId2)
                 edgeId = edge.Id;
 
                 this._edgesLookup[hash] = edgeId;
-                this._edges.Add(edgeId, edge);
+                this.Edges.Add(edgeId, edge);
 
                 this.GetVertex(edge.StartId).Edges.Add(edge);
                 this.GetVertex(edge.EndId).Edges.Add(edge);
@@ -476,7 +476,7 @@ public Edge AddEdge(ulong vertexId1, ulong vertexId2)
             }
             else
             {
-                this._edges.TryGetValue(edgeId, out var edge);
+                this.Edges.TryGetValue(edgeId, out var edge);
                 return edge;
             }
         }
@@ -511,7 +511,7 @@ public void RemoveEdge(Edge edge)
         {
             var hash = Edge.GetHash(new List<ulong> { edge.StartId, edge.EndId });
             this._edgesLookup.Remove(hash);
-            this._edges.Remove(edge.Id);
+            this.Edges.Remove(edge.Id);
 
             var startVertexEdges = this.GetVertex(edge.StartId).Edges;
             startVertexEdges.Remove(edge);
@@ -545,7 +545,7 @@ private Vertex AddVertex(Vector3 point)
                 id = this._vertexId;
                 var vertex = new Vertex(id, point);
                 zDict[point.Z] = id;
-                _vertices[id] = vertex;
+                Vertices[id] = vertex;
                 this._vertexId++;
             }
 
@@ -554,8 +554,8 @@ private Vertex AddVertex(Vector3 point)
 
         private void DeleteVertex(ulong id)
         {
-            var vertex = _vertices[id];
-            _vertices.Remove(id);
+            var vertex = Vertices[id];
+            Vertices.Remove(id);
             var zDict = GetAddressParent(_verticesLookup, vertex.Point, tolerance: Tolerance);
             if (zDict == null)
             {
diff --git a/Elements/src/Spatial/CellComplex/CellComplex.cs b/Elements/src/Spatial/CellComplex/CellComplex.cs
index 4e2105b8a..36769812b 100644
--- a/Elements/src/Spatial/CellComplex/CellComplex.cs
+++ b/Elements/src/Spatial/CellComplex/CellComplex.cs
@@ -35,38 +35,38 @@ public class CellComplex : Elements.Element
         /// <summary>
         /// Vertices by ID.
         /// </summary>
-        [JsonProperty]
-        private Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
+        [JsonPropertyName("_vertices")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public Dictionary<ulong, Vertex> Vertices = new Dictionary<ulong, Vertex>();
 
         /// <summary>
         /// U or V directions by ID.
         /// </summary>
-        [JsonProperty]
-        private Dictionary<ulong, Orientation> _orientations = new Dictionary<ulong, Orientation>();
+        [JsonPropertyName("_orientations")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public Dictionary<ulong, Orientation> Orientations = new Dictionary<ulong, Orientation>();
 
         /// <summary>
         /// Edges by ID.
         /// </summary>
-        [JsonProperty]
-        private Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
+        [JsonPropertyName("_edges")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public Dictionary<ulong, Edge> Edges = new Dictionary<ulong, Edge>();
 
         /// <summary>
         /// DirectedEdges by ID.
         /// </summary>
-        [JsonProperty]
-        private Dictionary<ulong, DirectedEdge> _directedEdges = new Dictionary<ulong, DirectedEdge>();
+        [JsonPropertyName("_directedEdges")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public Dictionary<ulong, DirectedEdge> DirectedEdges = new Dictionary<ulong, DirectedEdge>();
 
         /// <summary>
         /// Faces by ID.
         /// </summary>
-        [JsonProperty]
-        private Dictionary<ulong, Face> _faces = new Dictionary<ulong, Face>();
+        [JsonPropertyName("_faces")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public Dictionary<ulong, Face> Faces = new Dictionary<ulong, Face>();
 
         /// <summary>
         /// Cells by ID.
         /// </summary>
-        [JsonProperty]
-        private Dictionary<ulong, Cell> _cells = new Dictionary<ulong, Cell>();
+        [JsonPropertyName("_cells")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public Dictionary<ulong, Cell> Cells = new Dictionary<ulong, Cell>();
 
         // Vertex lookup by x, y, z coordinate.
         private Dictionary<double, Dictionary<double, Dictionary<double, ulong>>> _verticesLookup = new Dictionary<double, Dictionary<double, Dictionary<double, ulong>>>();
@@ -257,14 +257,14 @@ private DirectedEdge AddDirectedEdge(Line line)
         /// <returns>Whether the cell was successfully added. Will be false if cellId already exists.</returns>
         private Boolean AddCell(ulong cellId, List<Face> faces, Face bottomFace, Face topFace, out Cell cell)
         {
-            if (this._cells.ContainsKey(cellId))
+            if (this.Cells.ContainsKey(cellId))
             {
                 cell = null;
                 return false;
             }
 
             cell = new Cell(this, cellId, faces, bottomFace, topFace);
-            this._cells.Add(cell.Id, cell);
+            this.Cells.Add(cell.Id, cell);
 
             foreach (var face in faces)
             {
@@ -300,7 +300,7 @@ private Boolean AddFace(Polygon polygon, ulong idIfNew, Orientation u, Orientati
                 face = new Face(this, idIfNew, directedEdges, u, v);
                 faceId = face.Id;
                 this._facesLookup.Add(hash, faceId);
-                this._faces.Add(faceId, face);
+                this.Faces.Add(faceId, face);
 
                 foreach (var directedEdge in directedEdges)
                 {
@@ -312,7 +312,7 @@ private Boolean AddFace(Polygon polygon, ulong idIfNew, Orientation u, Orientati
             }
             else
             {
-                this._faces.TryGetValue(faceId, out face);
+                this.Faces.TryGetValue(faceId, out face);
                 return false;
             }
         }
@@ -341,7 +341,7 @@ private Boolean AddDirectedEdge(Edge edge, Boolean edgeTupleIsInOrder, ulong idI
                 directedEdgeId = directedEdge.Id;
 
                 directedEdgeDict.Add(edgeTupleIsInOrder, directedEdgeId);
-                this._directedEdges.Add(directedEdgeId, directedEdge);
+                this.DirectedEdges.Add(directedEdgeId, directedEdge);
 
                 edge.DirectedEdges.Add(directedEdge);
 
@@ -351,7 +351,7 @@ private Boolean AddDirectedEdge(Edge edge, Boolean edgeTupleIsInOrder, ulong idI
             }
             else
             {
-                this._directedEdges.TryGetValue(directedEdgeId, out directedEdge);
+                this.DirectedEdges.TryGetValue(directedEdgeId, out directedEdge);
 
                 return false;
             }
@@ -374,7 +374,7 @@ private Boolean AddEdge(List<ulong> vertexIds, ulong idIfNew, out Edge edge)
                 edgeId = edge.Id;
 
                 this._edgesLookup[hash] = edgeId;
-                this._edges.Add(edgeId, edge);
+                this.Edges.Add(edgeId, edge);
 
                 this.GetVertex(edge.StartVertexId).Edges.Add(edge);
                 this.GetVertex(edge.EndVertexId).Edges.Add(edge);
@@ -385,7 +385,7 @@ private Boolean AddEdge(List<ulong> vertexIds, ulong idIfNew, out Edge edge)
             }
             else
             {
-                this._edges.TryGetValue(edgeId, out edge);
+                this.Edges.TryGetValue(edgeId, out edge);
                 return false;
             }
         }
@@ -401,7 +401,7 @@ private Dictionary<ulong, T> GetVertexOrOrientationDictionary<T>() where T : Ver
             {
                 throw new Exception("Unsupported type provided, expected Vertex or Orientation");
             }
-            return typeof(T) == typeof(Orientation) ? this._orientations as Dictionary<ulong, T> : this._vertices as Dictionary<ulong, T>;
+            return typeof(T) == typeof(Orientation) ? this.Orientations as Dictionary<ulong, T> : this.Vertices as Dictionary<ulong, T>;
         }
 
         /// <summary>
@@ -496,7 +496,7 @@ private Boolean AddVertexOrOrientation<T>(Vector3 point, ulong idIfNew, out ulon
         /// <returns></returns>
         public Vertex GetVertex(ulong vertexId)
         {
-            this._vertices.TryGetValue(vertexId, out var vertex);
+            this.Vertices.TryGetValue(vertexId, out var vertex);
             return vertex;
         }
 
@@ -506,7 +506,7 @@ public Vertex GetVertex(ulong vertexId)
         /// <returns></returns>
         public List<Vertex> GetVertices()
         {
-            return this._vertices.Values.ToList();
+            return this.Vertices.Values.ToList();
         }
 
         /// <summary>
@@ -520,7 +520,7 @@ public Orientation GetOrientation(ulong? orientationId)
             {
                 return null;
             }
-            this._orientations.TryGetValue((ulong)orientationId, out var orientation);
+            this.Orientations.TryGetValue((ulong)orientationId, out var orientation);
             return orientation;
         }
 
@@ -530,7 +530,7 @@ public Orientation GetOrientation(ulong? orientationId)
         /// <returns></returns>
         internal List<Orientation> GetOrientations()
         {
-            return this._orientations.Values.ToList();
+            return this.Orientations.Values.ToList();
         }
 
         /// <summary>
@@ -540,7 +540,7 @@ internal List<Orientation> GetOrientations()
         /// <returns></returns>
         public Edge GetEdge(ulong edgeId)
         {
-            this._edges.TryGetValue(edgeId, out var edge);
+            this.Edges.TryGetValue(edgeId, out var edge);
             return edge;
         }
 
@@ -550,7 +550,7 @@ public Edge GetEdge(ulong edgeId)
         /// <returns></returns>
         public List<Edge> GetEdges()
         {
-            return this._edges.Values.ToList();
+            return this.Edges.Values.ToList();
         }
 
         /// <summary>
@@ -564,7 +564,7 @@ public Face GetFace(ulong? faceId)
             {
                 return null;
             }
-            this._faces.TryGetValue((ulong)faceId, out var face);
+            this.Faces.TryGetValue((ulong)faceId, out var face);
             return face;
         }
 
@@ -574,7 +574,7 @@ public Face GetFace(ulong? faceId)
         /// <returns></returns>
         public List<Face> GetFaces()
         {
-            return this._faces.Values.ToList();
+            return this.Faces.Values.ToList();
         }
 
         /// <summary>
@@ -584,7 +584,7 @@ public List<Face> GetFaces()
         /// <returns></returns>
         public Cell GetCell(ulong cellId)
         {
-            this._cells.TryGetValue(cellId, out var cell);
+            this.Cells.TryGetValue(cellId, out var cell);
             return cell;
         }
 
@@ -594,7 +594,7 @@ public Cell GetCell(ulong cellId)
         /// <returns></returns>
         public List<Cell> GetCells()
         {
-            return this._cells.Values.ToList();
+            return this.Cells.Values.ToList();
         }
 
         /// <summary>
@@ -644,7 +644,7 @@ public Cell GetClosestCell(Vector3 point)
         /// <returns></returns>
         internal DirectedEdge GetDirectedEdge(ulong directedEdgeId)
         {
-            this._directedEdges.TryGetValue(directedEdgeId, out var directedEdge);
+            this.DirectedEdges.TryGetValue(directedEdgeId, out var directedEdge);
             return directedEdge;
         }
 
@@ -654,7 +654,7 @@ internal DirectedEdge GetDirectedEdge(ulong directedEdgeId)
         /// <returns></returns>
         internal List<DirectedEdge> GetDirectedEdges()
         {
-            return this._directedEdges.Values.ToList();
+            return this.DirectedEdges.Values.ToList();
         }
 
         /// <summary>
diff --git a/Elements/src/Spatial/CellComplex/DirectedEdge.cs b/Elements/src/Spatial/CellComplex/DirectedEdge.cs
index 1c987e17a..e5a25795e 100644
--- a/Elements/src/Spatial/CellComplex/DirectedEdge.cs
+++ b/Elements/src/Spatial/CellComplex/DirectedEdge.cs
@@ -10,13 +10,12 @@ namespace Elements.Spatial.CellComplex
     /// There is a maximum of two DirectedEdges per Edge.
     /// This class is completely internal and only used for utilities inside of CellComplex.
     /// </summary>
-    internal class DirectedEdge : EdgeBase<DirectedEdge>
+    public class DirectedEdge : EdgeBase<DirectedEdge>
     {
         /// <summary>
         /// ID of the associated, direction-agnostic Edge.
         /// </summary>
-        [JsonProperty]
-        internal ulong EdgeId;
+        public ulong EdgeId;
 
         /// <summary>
         /// The unique Faces that are associated with this DirectedEdge.
diff --git a/Elements/src/Spatial/CellComplex/Face.cs b/Elements/src/Spatial/CellComplex/Face.cs
index cc0f19074..5e5952594 100644
--- a/Elements/src/Spatial/CellComplex/Face.cs
+++ b/Elements/src/Spatial/CellComplex/Face.cs
@@ -19,14 +19,14 @@ public class Face : ChildBase<Face, Polygon>, Interfaces.IHasNeighbors<Face, Pol
         /// <summary>
         /// ID of U orientation.
         /// </summary>
-        [JsonProperty]
-        private ulong? _orientationUId;
+        [JsonPropertyName("_orientationUId")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public ulong? OrientationUId;
 
         /// <summary>
         /// ID of V orientation.
         /// </summary>
-        [JsonProperty]
-        private ulong? _orientationVId;
+        [JsonPropertyName("_orientationVId")] // TODO: Backwards serialization capability. Update to align with property name in future.
+        public ulong? OrientationVId;
 
         /// <summary>
         /// Cells that reference this Face.
@@ -48,11 +48,11 @@ internal Face(CellComplex cellComplex, ulong id, List<DirectedEdge> directedEdge
             this.DirectedEdgeIds = directedEdges.Select(ds => ds.Id).ToList();
             if (u != null)
             {
-                this._orientationUId = u.Id;
+                this.OrientationUId = u.Id;
             }
             if (v != null)
             {
-                this._orientationVId = v.Id;
+                this.OrientationVId = v.Id;
             }
         }
 
@@ -64,8 +64,8 @@ internal Face(ulong id, List<ulong> directedEdgeIds, ulong? _orientationUId = nu
         {
             this.Id = id;
             this.DirectedEdgeIds = directedEdgeIds;
-            this._orientationUId = _orientationUId;
-            this._orientationVId = _orientationVId;
+            this.OrientationUId = _orientationUId;
+            this.OrientationVId = _orientationVId;
         }
 
         /// <summary>
@@ -192,7 +192,7 @@ public Cell GetClosestCell(Vector3 point)
         /// <returns></returns>
         public (Orientation U, Orientation V) GetOrientation()
         {
-            return (U: this.CellComplex.GetOrientation(this._orientationUId), V: this.CellComplex.GetOrientation(this._orientationVId));
+            return (U: this.CellComplex.GetOrientation(this.OrientationUId), V: this.CellComplex.GetOrientation(this.OrientationVId));
         }
 
         /// <summary>

From 8a5ee2fa4d91ac435e753a673053502344cd4860 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Apr 2022 14:54:17 -0700
Subject: [PATCH 029/150] Allow existing converters to use newtonsoft.

---
 Elements/src/GeoJSON/GeometryConverter.cs     | 55 +++++++++++++++++++
 Elements/src/GeoJSON/PositionConverter.cs     | 34 ++++++++++++
 .../JSON/JsonInheritanceConverter.cs          |  2 +-
 .../src/Serialization/JSON/MeshConverter.cs   |  2 +-
 .../src/Serialization/JSON/SolidConverter.cs  |  2 +-
 5 files changed, 92 insertions(+), 3 deletions(-)
 create mode 100644 Elements/src/GeoJSON/GeometryConverter.cs
 create mode 100644 Elements/src/GeoJSON/PositionConverter.cs

diff --git a/Elements/src/GeoJSON/GeometryConverter.cs b/Elements/src/GeoJSON/GeometryConverter.cs
new file mode 100644
index 000000000..8470be071
--- /dev/null
+++ b/Elements/src/GeoJSON/GeometryConverter.cs
@@ -0,0 +1,55 @@
+using System;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace Elements.GeoJSON
+{
+    public class GeometryConverter : JsonConverter
+    {
+        public override bool CanConvert(Type objectType)
+        {
+            if (typeof(Geometry).IsAssignableFrom(objectType))
+            {
+                return true;
+            }
+            return false;
+        }
+
+        public override bool CanWrite
+        {
+            get { return false; }
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            var jsonObject = JObject.Load(reader);
+            string typeName = (jsonObject["type"]).ToString();
+            switch (typeName)
+            {
+                case "Point":
+                    return jsonObject.ToObject<Point>();
+                case "Line":
+                    return jsonObject.ToObject<Line>();
+                case "MultiPoint":
+                    return jsonObject.ToObject<MultiPoint>();
+                case "LineString":
+                    return jsonObject.ToObject<LineString>();
+                case "MultiLineString":
+                    return jsonObject.ToObject<MultiLineString>();
+                case "Polygon":
+                    return jsonObject.ToObject<Polygon>();
+                case "MultiPolygon":
+                    return jsonObject.ToObject<MultiPolygon>();
+                case "GeometryCollection":
+                    return jsonObject.ToObject<GeometryCollection>();
+                default:
+                    throw new Exception($"The type found in the GeoJSON, {typeName}, could not be resolved.");
+            }
+        }
+
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/src/GeoJSON/PositionConverter.cs b/Elements/src/GeoJSON/PositionConverter.cs
new file mode 100644
index 000000000..81bad484d
--- /dev/null
+++ b/Elements/src/GeoJSON/PositionConverter.cs
@@ -0,0 +1,34 @@
+using System;
+using Newtonsoft.Json;
+
+namespace Elements.GeoJSON
+{
+    public class PositionConverter : JsonConverter
+    {
+        public override bool CanConvert(Type objectType)
+        {
+            if (objectType == typeof(Position))
+            {
+                return true;
+            }
+            return false;
+        }
+
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            var lon = reader.ReadAsDouble();
+            var lat = reader.ReadAsDouble();
+            reader.Read();
+            return new Position(lat.Value, lon.Value);
+        }
+
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            var p = (Position)value;
+            writer.WriteStartArray();
+            writer.WriteValue(p.Longitude);
+            writer.WriteValue(p.Latitude);
+            writer.WriteEndArray();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs b/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
index fa8cb0dc8..4f6cd7387 100644
--- a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
+++ b/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
@@ -4,7 +4,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
-using System.Text.Json.Serialization;
+using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 
 namespace Elements.Serialization.JSON
diff --git a/Elements/src/Serialization/JSON/MeshConverter.cs b/Elements/src/Serialization/JSON/MeshConverter.cs
index 977994244..a6f19ec09 100644
--- a/Elements/src/Serialization/JSON/MeshConverter.cs
+++ b/Elements/src/Serialization/JSON/MeshConverter.cs
@@ -4,8 +4,8 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Geometry;
-using System.Text.Json.Serialization;
 using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
 
 namespace Elements.Serialization.JSON
 {
diff --git a/Elements/src/Serialization/JSON/SolidConverter.cs b/Elements/src/Serialization/JSON/SolidConverter.cs
index 1451a6a65..84f87f116 100644
--- a/Elements/src/Serialization/JSON/SolidConverter.cs
+++ b/Elements/src/Serialization/JSON/SolidConverter.cs
@@ -2,12 +2,12 @@
 
 using Elements.Geometry.Solids;
 using System;
-using System.Text.Json.Serialization;
 using Newtonsoft.Json.Linq;
 using System.Collections.Generic;
 using Elements.Geometry;
 using System.Linq;
 using System.Reflection;
+using Newtonsoft.Json;
 
 namespace Elements.Serialization.JSON
 {

From 3179f824f5a4258b06534f8752006026bc092d07 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Apr 2022 14:54:29 -0700
Subject: [PATCH 030/150] Cleanup attributes in favor of system.text.json.

---
 Elements/src/Element.cs                 |  3 +-
 Elements/src/GeoJSON/Geometry.cs        | 80 -------------------------
 Elements/src/GeometricElement.cs        |  4 +-
 Elements/src/Geometry/Profile.cs        |  4 +-
 Elements/src/Geometry/Solids/Extrude.cs |  4 +-
 Elements/src/Model.cs                   |  6 +-
 Elements/src/StructuralFraming.cs       |  3 +-
 Elements/src/Symbol.cs                  |  6 +-
 8 files changed, 17 insertions(+), 93 deletions(-)

diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index 10786a1e9..d5699ab97 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -7,8 +7,7 @@ namespace Elements
     /// <summary>
     /// An object which is identified with a unique identifier and a name.
     /// </summary>
-    [Newtonsoft.Json.JsonConverter(typeof(JsonInheritanceConverter), "discriminator")]
-    [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Element>))]
+    [JsonConverter(typeof(ElementConverter<Element>))]
     public abstract class Element : System.ComponentModel.INotifyPropertyChanged
     {
         private System.Guid _id;
diff --git a/Elements/src/GeoJSON/Geometry.cs b/Elements/src/GeoJSON/Geometry.cs
index 38fda3db7..6bad28823 100644
--- a/Elements/src/GeoJSON/Geometry.cs
+++ b/Elements/src/GeoJSON/Geometry.cs
@@ -1,6 +1,5 @@
 using Elements.Geometry;
 using System.Text.Json.Serialization;
-using Newtonsoft.Json.Linq;
 
 using System;
 
@@ -259,83 +258,4 @@ public GeometryCollection(Geometry[] geometries)
             this.Geometries = geometries;
         }
     }
-
-    class PositionConverter : JsonConverter
-    {
-        public override bool CanConvert(Type objectType)
-        {
-            if (objectType == typeof(Position))
-            {
-                return true;
-            }
-            return false;
-        }
-
-        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
-        {
-            var lon = reader.ReadAsDouble();
-            var lat = reader.ReadAsDouble();
-            reader.Read();
-            return new Position(lat.Value, lon.Value);
-        }
-
-        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
-        {
-            var p = (Position)value;
-            writer.WriteStartArray();
-            writer.WriteValue(p.Longitude);
-            writer.WriteValue(p.Latitude);
-            writer.WriteEndArray();
-        }
-    }
-
-
-    class GeometryConverter : JsonConverter
-    {
-        public override bool CanConvert(Type objectType)
-        {
-            if (typeof(Geometry).IsAssignableFrom(objectType))
-            {
-                return true;
-            }
-            return false;
-        }
-
-        public override bool CanWrite
-        {
-            get { return false; }
-        }
-
-        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
-        {
-            var jsonObject = JObject.Load(reader);
-            string typeName = (jsonObject["type"]).ToString();
-            switch (typeName)
-            {
-                case "Point":
-                    return jsonObject.ToObject<Point>();
-                case "Line":
-                    return jsonObject.ToObject<Line>();
-                case "MultiPoint":
-                    return jsonObject.ToObject<MultiPoint>();
-                case "LineString":
-                    return jsonObject.ToObject<LineString>();
-                case "MultiLineString":
-                    return jsonObject.ToObject<MultiLineString>();
-                case "Polygon":
-                    return jsonObject.ToObject<Polygon>();
-                case "MultiPolygon":
-                    return jsonObject.ToObject<MultiPolygon>();
-                case "GeometryCollection":
-                    return jsonObject.ToObject<GeometryCollection>();
-                default:
-                    throw new Exception($"The type found in the GeoJSON, {typeName}, could not be resolved.");
-            }
-        }
-
-        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
-        {
-            throw new NotImplementedException();
-        }
-    }
 }
\ No newline at end of file
diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index 89cb391f7..5809d435b 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -20,8 +20,8 @@ public class GeometricElement : Element
         public Transform Transform { get; set; }
 
         /// <summary>The element's material.</summary>
-        [Newtonsoft.Json.JsonProperty("Material", Required = Newtonsoft.Json.Required.AllowNull)]
-        [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Material>))]
+        [JsonPropertyName("Material")]
+        [JsonConverter(typeof(ElementConverter<Material>))]
         public Material Material { get; set; }
 
         /// <summary>The element's representation.</summary>
diff --git a/Elements/src/Geometry/Profile.cs b/Elements/src/Geometry/Profile.cs
index 1b4badcf7..4bce51119 100644
--- a/Elements/src/Geometry/Profile.cs
+++ b/Elements/src/Geometry/Profile.cs
@@ -13,11 +13,11 @@ namespace Elements.Geometry
     public class Profile : Element, IEquatable<Profile>
     {
         /// <summary>The perimeter of the profile.</summary>
-        [JsonPropertyName("Perimeter", Required = Required.AllowNull)]
+        [JsonPropertyName("Perimeter")]
         public Polygon Perimeter { get; set; }
 
         /// <summary>A collection of Polygons representing voids in the profile.</summary>
-        [JsonPropertyName("Voids", Required = Required.AllowNull)]
+        [JsonPropertyName("Voids")]
         public IList<Polygon> Voids { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Solids/Extrude.cs b/Elements/src/Geometry/Solids/Extrude.cs
index d7be17eb4..e3282c4a9 100644
--- a/Elements/src/Geometry/Solids/Extrude.cs
+++ b/Elements/src/Geometry/Solids/Extrude.cs
@@ -15,8 +15,8 @@ public class Extrude : SolidOperation, System.ComponentModel.INotifyPropertyChan
         private Vector3 _direction;
 
         /// <summary>The id of the profile to extrude.</summary>
-        [Newtonsoft.Json.JsonProperty("Profile", Required = Newtonsoft.Json.Required.AllowNull)]
-        [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Profile>))]
+        [JsonPropertyName("Profile")]
+        [JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile
         {
             get { return _profile; }
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 7cc0cc908..0e07514fe 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -14,6 +14,7 @@
 using System.IO;
 using System.Text.Json;
 using System.Diagnostics;
+using Newtonsoft.Json;
 
 namespace Elements
 {
@@ -42,7 +43,8 @@ public class Model
         /// <param name="origin">The origin of the model.</param>
         /// <param name="transform">The transform of the model.</param>
         /// <param name="elements">A collection of elements.</param>
-        [JsonConstructor]
+        [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public Model(Position @origin, Transform @transform, System.Collections.Generic.IDictionary<Guid, Element> @elements)
         {
             this.Origin = @origin;
@@ -394,7 +396,7 @@ private List<Element> RecursiveGatherSubElementsInternal(object obj, Dictionary<
             {
                 // This query had a nice little speed boost when we filtered for
                 // valid types first then filtered for custom attributes.
-                constrainedProps = t.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => IsValidForRecursiveAddition(p.PropertyType) && p.GetCustomAttribute<JsonIgnoreAttribute>() == null).ToList();
+                constrainedProps = t.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => IsValidForRecursiveAddition(p.PropertyType) && p.GetCustomAttribute<System.Text.Json.Serialization.JsonIgnoreAttribute>() == null).ToList();
                 properties.Add(t, constrainedProps);
             }
 
diff --git a/Elements/src/StructuralFraming.cs b/Elements/src/StructuralFraming.cs
index cff46db06..45d7a48f0 100644
--- a/Elements/src/StructuralFraming.cs
+++ b/Elements/src/StructuralFraming.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Serialization.JSON;
@@ -29,7 +30,7 @@ public abstract class StructuralFraming : GeometricElement
         /// <summary>
         /// The structural framing's profile.
         /// </summary>
-        [System.Text.Json.Serialization.JsonConverter(typeof(ElementConverter<Profile>))]
+        [JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Symbol.cs b/Elements/src/Symbol.cs
index bd55e8943..f753452ba 100644
--- a/Elements/src/Symbol.cs
+++ b/Elements/src/Symbol.cs
@@ -6,6 +6,7 @@
 using System.Threading.Tasks;
 using System.Text.Json.Serialization;
 using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
 
 namespace Elements
 {
@@ -22,7 +23,7 @@ public class Symbol
 
         /// <summary>A named camera position for this representation, indicating the direction from which the camera is looking (a top view looks from top down, a north view looks from north to south.)</summary>
         [JsonPropertyName("CameraPosition")]
-        [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
+        [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
         public SymbolCameraPosition CameraPosition { get; set; }
 
         /// <summary>
@@ -30,7 +31,8 @@ public class Symbol
         /// </summary>
         /// <param name="geometry">The geometry of the symbol.</param>
         /// <param name="cameraPosition">A named camera position for this representation.</param>
-        [JsonConstructor]
+        [Newtonsoft.Json.JsonConstructor]
+        [System.Text.Json.Serialization.JsonConstructor]
         public Symbol(GeometryReference @geometry, SymbolCameraPosition @cameraPosition)
         {
             this.Geometry = @geometry;

From 636416b92d017a3b6d78bd3ab48b802807a51fea Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Apr 2022 15:17:35 -0700
Subject: [PATCH 031/150] Switch to system.text.json serializer where possible.

---
 Elements.Serialization.DXF/tests/DxfTests.cs |  3 ++-
 Elements/src/ContentElement.cs               |  5 ++--
 Elements/test/BBox3Tests.cs                  |  5 ++--
 Elements/test/ColorScaleTests.cs             |  9 ++++---
 Elements/test/CsgTests.cs                    |  5 ++--
 Elements/test/GeoJSONTests.cs                | 27 ++++++++++----------
 Elements/test/GltfTests.cs                   |  3 ++-
 Elements/test/Grid1dTests.cs                 |  5 ++--
 Elements/test/Grid2dTests.cs                 | 11 ++++----
 Elements/test/LineTests.cs                   | 17 ++++++------
 Elements/test/ModelTests.cs                  |  5 ++--
 Elements/test/PolygonTests.cs                | 19 +++++++-------
 Elements/test/ProfileTests.cs                | 17 ++++++------
 Elements/test/SolidTests.cs                  |  3 ++-
 Elements/test/TopographyTests.cs             |  5 ++--
 15 files changed, 77 insertions(+), 62 deletions(-)

diff --git a/Elements.Serialization.DXF/tests/DxfTests.cs b/Elements.Serialization.DXF/tests/DxfTests.cs
index 5f9eb5f89..60c8f9507 100644
--- a/Elements.Serialization.DXF/tests/DxfTests.cs
+++ b/Elements.Serialization.DXF/tests/DxfTests.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Text.Json;
 using Elements.Geometry;
 using Xunit;
 
@@ -67,7 +68,7 @@ public void DxfFromModel()
             var renderer = new DXF.ModelToDxf();
 
             var configJson = File.ReadAllText("../../../TestModels/cad-standard.json");
-            var config = Newtonsoft.Json.JsonConvert.DeserializeObject<MappingConfiguration>(configJson);
+            var config = JsonSerializer.Deserialize<MappingConfiguration>(configJson);
             renderer.SetMappingConfiguration(config);
             var stream = renderer.Render(model);
             stream.Position = 0;
diff --git a/Elements/src/ContentElement.cs b/Elements/src/ContentElement.cs
index 27a412866..f7bfe31c1 100644
--- a/Elements/src/ContentElement.cs
+++ b/Elements/src/ContentElement.cs
@@ -3,6 +3,7 @@
 using Elements.Geometry.Solids;
 using System.Text.Json.Serialization;
 using Elements.Serialization.JSON;
+using System.Text.Json;
 
 namespace Elements
 {
@@ -89,7 +90,7 @@ public ContentElement(string @gltfLocation,
         public ContentElement(string @gltfLocation, BBox3 @boundingBox, double @gltfScaleToMeters, Vector3 @sourceDirection, IList<Symbol> symbols, Transform @transform, Material @material, Representation @representation, bool @isElementDefinition, System.Guid @id, string @name, string @additionalProperties)
         : this(@gltfLocation, @boundingBox, @gltfScaleToMeters, @sourceDirection, symbols, @transform, @material, @representation, @isElementDefinition, @id, @name)
         {
-            this.AdditionalProperties = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, object>>(@additionalProperties);
+            this.AdditionalProperties = JsonSerializer.Deserialize<Dictionary<string, object>>(@additionalProperties);
         }
 
         /// <summary>
@@ -111,7 +112,7 @@ public ContentElement(string @gltfLocation, BBox3 @boundingBox, double @gltfScal
         public ContentElement(string @gltfLocation, BBox3 @boundingBox, double @gltfScaleToMeters, Vector3 @sourceDirection, Transform @transform, Material @material, Representation @representation, bool @isElementDefinition, System.Guid @id, string @name, string @additionalProperties)
         : this(@gltfLocation, @boundingBox, @gltfScaleToMeters, @sourceDirection, null, @transform, @material, @representation, @isElementDefinition, @id, @name)
         {
-            this.AdditionalProperties = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, object>>(@additionalProperties);
+            this.AdditionalProperties = JsonSerializer.Deserialize<Dictionary<string, object>>(@additionalProperties);
         }
 
         /// <summary>
diff --git a/Elements/test/BBox3Tests.cs b/Elements/test/BBox3Tests.cs
index f6832b64b..baf073bc3 100644
--- a/Elements/test/BBox3Tests.cs
+++ b/Elements/test/BBox3Tests.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json;
 using Elements.Geometry;
 using Elements.Geometry.Profiles;
 using Elements.Geometry.Solids;
@@ -14,7 +15,7 @@ public class Bbox3Tests : ModelTest
         [Fact]
         public void Bbox3Calculates()
         {
-            var polygon = JsonConvert.DeserializeObject<Polygon>("{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-30.52885,\"Y\":-5.09393,\"Z\":0.0},{\"X\":-48.41906,\"Y\":111.94723,\"Z\":0.0},{\"X\":-95.02982,\"Y\":70.39512,\"Z\":0.0},{\"X\":-72.98057,\"Y\":-34.12159,\"Z\":0.0}]}");
+            var polygon = JsonSerializer.Deserialize<Polygon>("{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-30.52885,\"Y\":-5.09393,\"Z\":0.0},{\"X\":-48.41906,\"Y\":111.94723,\"Z\":0.0},{\"X\":-95.02982,\"Y\":70.39512,\"Z\":0.0},{\"X\":-72.98057,\"Y\":-34.12159,\"Z\":0.0}]}");
             var bbox = new BBox3(polygon);
             var diagonal = bbox.Max.DistanceTo(bbox.Min);
             Assert.Equal(159.676157, diagonal, 4);
@@ -144,7 +145,7 @@ public void BBoxesForElements()
             ""Opaque"": 1
         }";
 
-            var contentElement = JsonConvert.DeserializeObject<ContentElement>(contentJson);
+            var contentElement = JsonSerializer.Deserialize<ContentElement>(contentJson);
             elements.Add(contentElement.CreateInstance(new Transform(-6, 0, 0), null));
             elements.Add(contentElement.CreateInstance(new Transform(new Vector3(-8, 0, 0), 45), null));
 
diff --git a/Elements/test/ColorScaleTests.cs b/Elements/test/ColorScaleTests.cs
index cdac51b42..826cf5d10 100644
--- a/Elements/test/ColorScaleTests.cs
+++ b/Elements/test/ColorScaleTests.cs
@@ -4,6 +4,7 @@
 using Elements.Geometry;
 using Xunit;
 using System.Text.Json.Serialization;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -85,13 +86,13 @@ public void ThrowsOnDuplicatedValues()
         public void DeserializesCorrectly()
         {
             var bandedColorScale = new ColorScale(new List<Color>() { Colors.Cyan, Colors.Purple, Colors.Orange }, 10);
-            var bandedSerialized = JsonConvert.SerializeObject(bandedColorScale);
-            var bandedDeserialized = JsonConvert.DeserializeObject<ColorScale>(bandedSerialized);
+            var bandedSerialized = JsonSerializer.Serialize(bandedColorScale);
+            var bandedDeserialized = JsonSerializer.Deserialize<ColorScale>(bandedSerialized);
             Assert.Equal(bandedColorScale.GetColor(0.12345), bandedDeserialized.GetColor(0.12345));
 
             var linearColorScale = new ColorScale(new List<Color>() { Colors.Cyan, Colors.Purple, Colors.Orange });
-            var linearSerialized = JsonConvert.SerializeObject(linearColorScale);
-            var linearDeserialized = JsonConvert.DeserializeObject<ColorScale>(linearSerialized);
+            var linearSerialized = JsonSerializer.Serialize(linearColorScale);
+            var linearDeserialized = JsonSerializer.Deserialize<ColorScale>(linearSerialized);
             Assert.Equal(linearColorScale.GetColor(0.12345), linearDeserialized.GetColor(0.12345));
 
             Assert.NotEqual(linearColorScale.GetColor(0.12345), bandedColorScale.GetColor(0.12345));
diff --git a/Elements/test/CsgTests.cs b/Elements/test/CsgTests.cs
index eb8dd74f9..bc358acf9 100644
--- a/Elements/test/CsgTests.cs
+++ b/Elements/test/CsgTests.cs
@@ -9,6 +9,7 @@
 using System.Threading.Tasks;
 using System.Text.Json.Serialization;
 using Elements.Geometry.Tessellation;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -94,7 +95,7 @@ public void SubtractWithProblematicPolygons()
         [Fact]
         public void UnionWithProblematicPolygons()
         {
-            var profile1 = JsonConvert.DeserializeObject<Polygon>(
+            var profile1 = JsonSerializer.Deserialize<Polygon>(
                 @"{
                 ""Vertices"": [
                     {
@@ -129,7 +130,7 @@ public void UnionWithProblematicPolygons()
                     }
                 ]}
                 ");
-            var profile2 = JsonConvert.DeserializeObject<Polygon>(
+            var profile2 = JsonSerializer.Deserialize<Polygon>(
                 @"{
                 ""Vertices"": [
                     {
diff --git a/Elements/test/GeoJSONTests.cs b/Elements/test/GeoJSONTests.cs
index ebc18a1c5..b614d73ad 100644
--- a/Elements/test/GeoJSONTests.cs
+++ b/Elements/test/GeoJSONTests.cs
@@ -3,6 +3,7 @@
 using System;
 using Xunit;
 using Line = Elements.GeoJSON.Line;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -61,8 +62,8 @@ public class GeoJSONTests
         public void Position_Serialize_Valid()
         {
             var p = new Position(10.0, 5.0);
-            var json = JsonConvert.SerializeObject(p);
-            var newP = JsonConvert.DeserializeObject<Position>(json);
+            var json = JsonSerializer.Serialize(p);
+            var newP = JsonSerializer.Deserialize<Position>(json);
             Assert.Equal(5.0, newP.Longitude);
             Assert.Equal(10.0, newP.Latitude);
         }
@@ -71,8 +72,8 @@ public void Position_Serialize_Valid()
         public void Point_Serialize_Valid()
         {
             var p = new Point(new Position(10.0, 5.0));
-            var json = JsonConvert.SerializeObject(p);
-            var newP = JsonConvert.DeserializeObject<Point>(json);
+            var json = JsonSerializer.Serialize(p);
+            var newP = JsonSerializer.Deserialize<Point>(json);
             Assert.Equal("Point", newP.Type);
             Assert.Equal(new Position(10.0, 5.0), newP.Coordinates);
         }
@@ -83,8 +84,8 @@ public void Line_Serialize_Valid()
             var a = new Position(0, 0);
             var b = new Position(5, 5);
             var l = new Line(new[] { a, b });
-            var json = JsonConvert.SerializeObject(l);
-            var newL = JsonConvert.DeserializeObject<Line>(json);
+            var json = JsonSerializer.Serialize(l);
+            var newL = JsonSerializer.Deserialize<Line>(json);
             Assert.Equal(a, newL.Coordinates[0]);
             Assert.Equal(b, newL.Coordinates[1]);
             Assert.Equal("Line", newL.Type);
@@ -97,8 +98,8 @@ public void LineString_Serialize_Valid()
             var b = new Position(5, 5);
             var c = new Position(10, 10);
             var ls = new LineString(new[] { a, b, c });
-            var json = JsonConvert.SerializeObject(ls);
-            var newLs = JsonConvert.DeserializeObject<LineString>(json);
+            var json = JsonSerializer.Serialize(ls);
+            var newLs = JsonSerializer.Deserialize<LineString>(json);
             Assert.Equal(a, newLs.Coordinates[0]);
             Assert.Equal(b, newLs.Coordinates[1]);
             Assert.Equal(c, newLs.Coordinates[2]);
@@ -112,7 +113,7 @@ public void Polygon_Serialize_Valid()
             var b = new Position(5, 5);
             var c = new Position(10, 10);
             var p = new Polygon(new[] { new[] { a, b, c, a } });
-            var json = JsonConvert.SerializeObject(p);
+            var json = JsonSerializer.Serialize(p);
 
             Assert.Throws<Exception>(() =>
             {
@@ -128,8 +129,8 @@ public void MultiLineString_Serialize_Valid()
             var b = new Position(5, 5);
             var c = new Position(10, 10);
             var mls = new MultiLineString(new[] { new[] { a, b, c }, new[] { c, b, a } });
-            var json = JsonConvert.SerializeObject(mls);
-            var newMls = JsonConvert.DeserializeObject<MultiLineString>(json);
+            var json = JsonSerializer.Serialize(mls);
+            var newMls = JsonSerializer.Deserialize<MultiLineString>(json);
             Assert.Equal(2, newMls.Coordinates.GetLength(0));
             Assert.Equal(3, newMls.Coordinates[0].Length);
             Assert.Equal(3, newMls.Coordinates[1].Length);
@@ -143,7 +144,7 @@ public void FeatureCollection_SerializeValid()
             var f1 = new Feature(p, null);
             var f2 = new Feature(l, null);
             var fc = new FeatureCollection(new[] { f1, f2 });
-            var json = JsonConvert.SerializeObject(fc);
+            var json = JsonSerializer.Serialize(fc);
         }
 
         // [Fact]
@@ -174,7 +175,7 @@ public void FeatureCollection_SerializeValid()
         [Fact]
         public void Feature_Deserialize_Valid()
         {
-            var f = JsonConvert.DeserializeObject<Feature[]>(feature);
+            var f = JsonSerializer.Deserialize<Feature[]>(feature);
             var p = (Polygon)f[0].Geometry;
             Assert.Equal(7, p.Coordinates[0].Length);
             Assert.Equal("Feature", f[0].Type);
diff --git a/Elements/test/GltfTests.cs b/Elements/test/GltfTests.cs
index 1e4f51e67..0092ac26d 100644
--- a/Elements/test/GltfTests.cs
+++ b/Elements/test/GltfTests.cs
@@ -8,6 +8,7 @@
 using System;
 using System.IO;
 using System.Text.Json.Serialization;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -82,7 +83,7 @@ public void GeometricElementWithoutMaterialUsesDefaultMaterial()
         public void ThinObjectsGenerateCorrectly()
         {
             var json = File.ReadAllText("../../../models/Geometry/Single-Panel.json");
-            var panel = JsonConvert.DeserializeObject<Panel>(json);
+            var panel = JsonSerializer.Deserialize<Panel>(json);
             var model = new Model();
             model.AddElement(panel);
             var modelsDir = Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "models");
diff --git a/Elements/test/Grid1dTests.cs b/Elements/test/Grid1dTests.cs
index 748ed3844..3699f5a28 100644
--- a/Elements/test/Grid1dTests.cs
+++ b/Elements/test/Grid1dTests.cs
@@ -5,6 +5,7 @@
 using Elements.Geometry;
 using System.Collections.Generic;
 using System.Text.Json.Serialization;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -160,8 +161,8 @@ public void Grid1dSerializes()
             var grid = new Grid1d(polyline);
             grid.DivideByCount(4);
             grid[3].DivideByFixedLength(0.4);
-            var json = JsonConvert.SerializeObject(grid);
-            var deserialized = JsonConvert.DeserializeObject<Grid1d>(json);
+            var json = JsonSerializer.Serialize(grid);
+            var deserialized = JsonSerializer.Deserialize<Grid1d>(json);
             Assert.Equal(grid.GetCells().Count, deserialized.GetCells().Count);
             Assert.Equal(0, (grid.Curve as Polyline).Start.DistanceTo((deserialized.Curve as Polyline).Start));
         }
diff --git a/Elements/test/Grid2dTests.cs b/Elements/test/Grid2dTests.cs
index 5ecd53f09..1533d5a74 100644
--- a/Elements/test/Grid2dTests.cs
+++ b/Elements/test/Grid2dTests.cs
@@ -6,6 +6,7 @@
 using System.Text.Json.Serialization;
 using Elements.Geometry;
 using System.Collections.Generic;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -66,7 +67,7 @@ public void TrimBehavior()
         {
             Name = "TrimBehavior";
             var polygonjson = "[{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-14.371519985751306,\"Y\":-4.8816304299427005,\"Z\":0.0},{\"X\":-17.661873645682569,\"Y\":9.2555712951713573,\"Z\":0.0},{\"X\":12.965610421927806,\"Y\":9.2555712951713573,\"Z\":0.0},{\"X\":12.965610421927806,\"Y\":3.5538269529982784,\"Z\":0.0},{\"X\":6.4046991240848143,\"Y\":3.5538269529982784,\"Z\":0.0},{\"X\":1.3278034769444158,\"Y\":-4.8816304299427005,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-9.4508365123690652,\"Y\":0.20473478280229102,\"Z\":0.0},{\"X\":-1.8745460850979974,\"Y\":0.20473478280229102,\"Z\":0.0},{\"X\":-1.8745460850979974,\"Y\":5.4378426037008651,\"Z\":0.0},{\"X\":-9.4508365123690652,\"Y\":5.4378426037008651,\"Z\":0.0}]}]\r\n";
-            var polygons = JsonConvert.DeserializeObject<List<Polygon>>(polygonjson);
+            var polygons = JsonSerializer.Deserialize<List<Polygon>>(polygonjson);
             var grid = new Grid2d(polygons);
             foreach (var pt in polygons[1].Vertices)
             {
@@ -196,8 +197,8 @@ public void Grid2dSerializes()
             grid2d.U.DivideByCount(10);
             grid2d.V.DivideByCount(3);
             grid2d[2, 2].U.DivideByCount(4);
-            var json = JsonConvert.SerializeObject(grid2d);
-            var deserialized = JsonConvert.DeserializeObject<Grid2d>(json);
+            var json = JsonSerializer.Serialize(grid2d);
+            var deserialized = JsonSerializer.Deserialize<Grid2d>(json);
             Assert.Equal(grid2d.GetCells().Count, deserialized.GetCells().Count);
 
             var grid2dElem = new Grid2dElement(grid2d, Guid.NewGuid(), "Grid");
@@ -477,7 +478,7 @@ public void SkewedGridsWithNearlyParallelBoundary()
                 ]
                 }
             }";
-            var transform = JsonConvert.DeserializeObject<Transform>(transformStr);
+            var transform = JsonSerializer.Deserialize<Transform>(transformStr);
             var origin = transform.Origin;
             var uDirection = transform.XAxis;
             var vDirection = transform.YAxis;
@@ -547,7 +548,7 @@ public void RotateGridWithClosePointDoNotThrow()
         public void SeparatorsFromBadPolygon()
         {
             var json = File.ReadAllText("../../../models/Geometry/bad_grid.json");
-            var grid = JsonConvert.DeserializeObject<Grid2d>(json);
+            var grid = JsonSerializer.Deserialize<Grid2d>(json);
             var cellSeparators = grid.GetCellSeparators(GridDirection.V, true);
         }
     }
diff --git a/Elements/test/LineTests.cs b/Elements/test/LineTests.cs
index 41fd1b9cb..b816550db 100644
--- a/Elements/test/LineTests.cs
+++ b/Elements/test/LineTests.cs
@@ -5,6 +5,7 @@
 using Elements.Tests;
 using System.Text.Json.Serialization;
 using Xunit;
+using System.Text.Json;
 
 namespace Elements.Geometry.Tests
 {
@@ -226,8 +227,8 @@ public void LineTrimToInYZ()
         [Fact]
         public void TrimLineThatStartsAtPolygonEdge()
         {
-            var polygon = JsonConvert.DeserializeObject<Polygon>(File.ReadAllText("../../../models/Geometry/ConcavePolygon.json"));
-            var line = JsonConvert.DeserializeObject<Line>(File.ReadAllText("../../../models/Geometry/LineThatFailsTrim.json"));
+            var polygon = JsonSerializer.Deserialize<Polygon>(File.ReadAllText("../../../models/Geometry/ConcavePolygon.json"));
+            var line = JsonSerializer.Deserialize<Line>(File.ReadAllText("../../../models/Geometry/LineThatFailsTrim.json"));
             var lines = line.Trim(polygon, out var _);
 
             Assert.Equal(4.186147, lines[0].Length(), 2);
@@ -236,8 +237,8 @@ public void TrimLineThatStartsAtPolygonEdge()
         [Fact]
         public void LineIntersectAtEnd()
         {
-            var line1 = JsonConvert.DeserializeObject<Line>("{\"discriminator\":\"Elements.Geometry.Line\",\"Start\":{\"X\":22.63192881973488,\"Y\":23.07673264883112,\"Z\":0.0},\"End\":{\"X\":26.239210000000003,\"Y\":32.009170000000005,\"Z\":0.0}}");
-            var line2 = JsonConvert.DeserializeObject<Line>("{\"discriminator\":\"Elements.Geometry.Line\",\"Start\":{\"X\":26.23921,\"Y\":32.00917,\"Z\":0.0},\"End\":{\"X\":24.47373,\"Y\":32.72215,\"Z\":0.0}}");
+            var line1 = JsonSerializer.Deserialize<Line>("{\"discriminator\":\"Elements.Geometry.Line\",\"Start\":{\"X\":22.63192881973488,\"Y\":23.07673264883112,\"Z\":0.0},\"End\":{\"X\":26.239210000000003,\"Y\":32.009170000000005,\"Z\":0.0}}");
+            var line2 = JsonSerializer.Deserialize<Line>("{\"discriminator\":\"Elements.Geometry.Line\",\"Start\":{\"X\":26.23921,\"Y\":32.00917,\"Z\":0.0},\"End\":{\"X\":24.47373,\"Y\":32.72215,\"Z\":0.0}}");
             line1.Intersects(line2, out var intersection, false, true);
         }
 
@@ -290,13 +291,13 @@ public void LineTrimWithPolygon()
         public void ExtendToProfile()
         {
             Name = "ExtendToProfile";
-            var polygons = JsonConvert.DeserializeObject<List<Polygon>>("[{\"Vertices\":[{\"X\":-3.3239130434782611,\"Y\":2.534782608695652,\"Z\":0.0},{\"X\":1.924698097225491,\"Y\":6.0910303088278326,\"Z\":0.0},{\"X\":2.5714592294272105,\"Y\":3.5518940120358997,\"Z\":0.0},{\"X\":1.1956521739130428,\"Y\":2.1760869565217393,\"Z\":0.0},{\"X\":1.7456521739130428,\"Y\":0.47826086956521707,\"Z\":0.0},{\"X\":0.69347826086956554,\"Y\":-1.2195652173913047,\"Z\":0.0},{\"X\":2.9652173913043476,\"Y\":-1.3391304347826083,\"Z\":0.0},{\"X\":3.2760869565217394,\"Y\":-2.7978260869565217,\"Z\":0.0},{\"X\":1.5065217391304346,\"Y\":-3.347826086956522,\"Z\":0.0},{\"X\":-0.43043478260869589,\"Y\":-1.482608695652174,\"Z\":0.0},{\"X\":-1.4586956521739132,\"Y\":-1.7695652173913039,\"Z\":0.0},{\"X\":-3.3239130434782611,\"Y\":-2.1043478260869568,\"Z\":0.0}]},{\"Vertices\":[{\"X\":0.070768827751857444,\"Y\":-0.75686629107050352,\"Z\":0.0},{\"X\":1.1928650019807621,\"Y\":0.39683822609442632,\"Z\":0.0},{\"X\":-1.1303482038171115,\"Y\":2.5936180601481968,\"Z\":0.0},{\"X\":-1.3358024329012763,\"Y\":2.2617304593199297,\"Z\":0.0}]}]");
+            var polygons = JsonSerializer.Deserialize<List<Polygon>>("[{\"Vertices\":[{\"X\":-3.3239130434782611,\"Y\":2.534782608695652,\"Z\":0.0},{\"X\":1.924698097225491,\"Y\":6.0910303088278326,\"Z\":0.0},{\"X\":2.5714592294272105,\"Y\":3.5518940120358997,\"Z\":0.0},{\"X\":1.1956521739130428,\"Y\":2.1760869565217393,\"Z\":0.0},{\"X\":1.7456521739130428,\"Y\":0.47826086956521707,\"Z\":0.0},{\"X\":0.69347826086956554,\"Y\":-1.2195652173913047,\"Z\":0.0},{\"X\":2.9652173913043476,\"Y\":-1.3391304347826083,\"Z\":0.0},{\"X\":3.2760869565217394,\"Y\":-2.7978260869565217,\"Z\":0.0},{\"X\":1.5065217391304346,\"Y\":-3.347826086956522,\"Z\":0.0},{\"X\":-0.43043478260869589,\"Y\":-1.482608695652174,\"Z\":0.0},{\"X\":-1.4586956521739132,\"Y\":-1.7695652173913039,\"Z\":0.0},{\"X\":-3.3239130434782611,\"Y\":-2.1043478260869568,\"Z\":0.0}]},{\"Vertices\":[{\"X\":0.070768827751857444,\"Y\":-0.75686629107050352,\"Z\":0.0},{\"X\":1.1928650019807621,\"Y\":0.39683822609442632,\"Z\":0.0},{\"X\":-1.1303482038171115,\"Y\":2.5936180601481968,\"Z\":0.0},{\"X\":-1.3358024329012763,\"Y\":2.2617304593199297,\"Z\":0.0}]}]");
             var profile = new Profile(polygons);
             var mcs = profile.ToModelCurves(material: BuiltInMaterials.XAxis);
             Model.AddElements(mcs);
-            var intersectsAtVertex = JsonConvert.DeserializeObject<Vector3>("{\"X\":1.9248644534137522,\"Y\":-2.3794833726732039,\"Z\":0.0}");
-            var doesntIntersect = JsonConvert.DeserializeObject<Vector3>("{\"X\":-3.5077580495618728,\"Y\":3.5797588753975274,\"Z\":0.0}");
-            var hitsVoid = JsonConvert.DeserializeObject<Vector3>("{\"X\":-0.73780074305628141,\"Y\":-0.976285760075414,\"Z\":0.0}");
+            var intersectsAtVertex = JsonSerializer.Deserialize<Vector3>("{\"X\":1.9248644534137522,\"Y\":-2.3794833726732039,\"Z\":0.0}");
+            var doesntIntersect = JsonSerializer.Deserialize<Vector3>("{\"X\":-3.5077580495618728,\"Y\":3.5797588753975274,\"Z\":0.0}");
+            var hitsVoid = JsonSerializer.Deserialize<Vector3>("{\"X\":-0.73780074305628141,\"Y\":-0.976285760075414,\"Z\":0.0}");
             var lineDir = new Vector3(0.1, 0.1);
             var iavLine = new Line(intersectsAtVertex, intersectsAtVertex + lineDir).ExtendTo(profile);
             var diLine = new Line(doesntIntersect, doesntIntersect + lineDir).ExtendTo(profile);
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index 77e888735..ae451ce70 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -12,6 +12,7 @@
 using Newtonsoft.Json.Linq;
 using System.Threading.Tasks;
 using Elements.Geometry.Profiles;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -102,10 +103,10 @@ public async Task MergesModelsWithUserDefinedTypes()
             Assert.NotNull(facadePanelType);
             var envelopeType = asm.Assembly.GetType("Elements.Envelope");
             Assert.NotNull(envelopeType);
-            var model1 = JsonConvert.DeserializeObject<Model>(File.ReadAllText("../../../models/Merge/facade.json"));
+            var model1 = JsonSerializer.Deserialize<Model>(File.ReadAllText("../../../models/Merge/facade.json"));
             var count1 = model1.Elements.Count;
 
-            var model2 = JsonConvert.DeserializeObject<Model>(File.ReadAllText("../../../models/Merge/structure.json"));
+            var model2 = JsonSerializer.Deserialize<Model>(File.ReadAllText("../../../models/Merge/structure.json"));
             var count2 = model2.Elements.Count;
 
             var merge = new Model();
diff --git a/Elements/test/PolygonTests.cs b/Elements/test/PolygonTests.cs
index baf45ad16..1a96dfd12 100644
--- a/Elements/test/PolygonTests.cs
+++ b/Elements/test/PolygonTests.cs
@@ -7,6 +7,7 @@
 using Elements.Tests;
 using System.IO;
 using System.Diagnostics;
+using System.Text.Json;
 
 namespace Elements.Geometry.Tests
 {
@@ -689,8 +690,8 @@ public void UnionAllSequential()
         {
             Name = "UnionAllSequential";
             // sample data contributed by Marco Juliani
-            var polygonsA = JsonConvert.DeserializeObject<List<Polygon>>(File.ReadAllText("../../../models/Geometry/testUnionAll.json"));
-            var polygonsB = JsonConvert.DeserializeObject<List<Polygon>>(File.ReadAllText("../../../models/Geometry/testUnionAll_2.json"));
+            var polygonsA = JsonSerializer.Deserialize<List<Polygon>>(File.ReadAllText("../../../models/Geometry/testUnionAll.json"));
+            var polygonsB = JsonSerializer.Deserialize<List<Polygon>>(File.ReadAllText("../../../models/Geometry/testUnionAll_2.json"));
             var unionA = Polygon.UnionAll(polygonsA);
             var unionB = Polygon.UnionAll(polygonsB);
             Model.AddElements(unionA.Select(u => new ModelCurve(u)));
@@ -982,12 +983,12 @@ public void DeserializesWithoutDiscriminator()
                 ]
             }
             ";
-            var polygon = JsonConvert.DeserializeObject<Polygon>(json);
+            var polygon = JsonSerializer.Deserialize<Polygon>(json);
 
             // We've created a new Polygon, which will have a discriminator
             // because it was created using the JsonInheritanceConverter.
-            var newJson = JsonConvert.SerializeObject(polygon);
-            var newPolygon = (Polygon)JsonConvert.DeserializeObject<Polygon>(newJson);
+            var newJson = JsonSerializer.Serialize(polygon);
+            var newPolygon = (Polygon)JsonSerializer.Deserialize<Polygon>(newJson);
 
             Assert.Equal(polygon.Vertices.Count, newPolygon.Vertices.Count);
         }
@@ -1520,8 +1521,8 @@ public void CorrectWindingForTrims()
 
             var r = new Random();
 
-            var bigPoly = JsonConvert.DeserializeObject<Polygon>(_bigPoly);
-            var splitters = JsonConvert.DeserializeObject<List<Polygon>>(_splitters);
+            var bigPoly = JsonSerializer.Deserialize<Polygon>(_bigPoly);
+            var splitters = JsonSerializer.Deserialize<List<Polygon>>(_splitters);
 
             foreach (var splitter in splitters)
             {
@@ -1920,8 +1921,8 @@ public void ExtendWhereSomeSegmentsAreAtOrigin()
         public void LineTrim()
         {
             Name = nameof(LineTrim);
-            var boundary = JsonConvert.DeserializeObject<Polygon>("{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":27.25008,\"Y\":19.98296,\"Z\":0.0},{\"X\":-14.78244,\"Y\":19.98296,\"Z\":0.0},{\"X\":-14.78244,\"Y\":16.4675,\"Z\":0.0},{\"X\":27.25008,\"Y\":16.4675,\"Z\":0.0}]}");
-            var line = JsonConvert.DeserializeObject<Line>("{\"discriminator\": \"Elements.Geometry.Line\",\"Start\": {\"X\": -0.771609999999999,\"Y\": 16.46749,\"Z\": 0.0},\"End\": {\"X\": -0.771609999999999,\"Y\": 19.98295,\"Z\": 0.0}\n}");
+            var boundary = JsonSerializer.Deserialize<Polygon>("{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":27.25008,\"Y\":19.98296,\"Z\":0.0},{\"X\":-14.78244,\"Y\":19.98296,\"Z\":0.0},{\"X\":-14.78244,\"Y\":16.4675,\"Z\":0.0},{\"X\":27.25008,\"Y\":16.4675,\"Z\":0.0}]}");
+            var line = JsonSerializer.Deserialize<Line>("{\"discriminator\": \"Elements.Geometry.Line\",\"Start\": {\"X\": -0.771609999999999,\"Y\": 16.46749,\"Z\": 0.0},\"End\": {\"X\": -0.771609999999999,\"Y\": 19.98295,\"Z\": 0.0}\n}");
 
             var trimmed = line.Trim(boundary, out var remainder);
             Assert.True(trimmed.Sum(l => l.Length()) > 0);
diff --git a/Elements/test/ProfileTests.cs b/Elements/test/ProfileTests.cs
index 3a6767c13..bafebcacc 100644
--- a/Elements/test/ProfileTests.cs
+++ b/Elements/test/ProfileTests.cs
@@ -7,6 +7,7 @@
 using Elements.Serialization.JSON;
 using System.IO;
 using System.Text.Json.Serialization;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -423,9 +424,9 @@ public void DifferenceFail()
         {
             // This test used to fail with an exception due to a very small polygon produced from the boolean.
             var aShapeJson = "{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-149.51680916003411,\"Y\":-545.6788101645068,\"Z\":0.0},{\"X\":-181.13449678692302,\"Y\":-508.57118930829984,\"Z\":0.0},{\"X\":-185.00173212061222,\"Y\":-476.0495417216826,\"Z\":0.0},{\"X\":-211.47915563014516,\"Y\":-479.19804234633307,\"Z\":0.0},{\"X\":-213.43484799507593,\"Y\":-627.6323068549372,\"Z\":0.0},{\"X\":-169.59832064900132,\"Y\":-624.8068240421294,\"Z\":0.0},{\"X\":-144.53329588528302,\"Y\":-620.4717620034767,\"Z\":0.0}]},\"Voids\":[{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-174.65966226538052,\"Y\":-581.4103523143159,\"Z\":0.0},{\"X\":-174.89675190025594,\"Y\":-599.4087908161704,\"Z\":0.0},{\"X\":-184.89588440128614,\"Y\":-599.2770743523507,\"Z\":0.0},{\"X\":-184.65879476641072,\"Y\":-581.2786358504962,\"Z\":0.0}]}],\"Id\":\"5b65b6a5-b0a4-4373-ba47-76380d379893\",\"Name\":null}";
-            var p1 = Newtonsoft.Json.JsonConvert.DeserializeObject<Profile>(aShapeJson);
+            var p1 = JsonSerializer.Deserialize<Profile>(aShapeJson);
             var otherPolysJson = "[{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-170.30455,\"Y\":-618.83988,\"Z\":0.0},{\"X\":-150.8792,\"Y\":-615.48022,\"Z\":0.0},{\"X\":-155.37154,\"Y\":-548.05882,\"Z\":0.0},{\"X\":-186.87827,\"Y\":-511.08143,\"Z\":0.0},{\"X\":-190.01511,\"Y\":-484.70206,\"Z\":0.0},{\"X\":-205.57554,\"Y\":-486.55239,\"Z\":0.0},{\"X\":-207.34994,\"Y\":-621.22765,\"Z\":0.0}]},\"Voids\":[{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-205.82871,\"Y\":-619.62649,\"Z\":0.0},{\"X\":-204.09299,\"Y\":-487.88667,\"Z\":0.0},{\"X\":-191.3275,\"Y\":-486.36869,\"Z\":0.0},{\"X\":-188.31421,\"Y\":-511.70899,\"Z\":0.0},{\"X\":-156.83522,\"Y\":-548.65382,\"Z\":0.0},{\"X\":-152.46567,\"Y\":-614.23233,\"Z\":0.0},{\"X\":-170.48117,\"Y\":-617.34816,\"Z\":0.0}]}],\"Id\":\"0fbf2cac-126b-45a3-b32e-e53c32c9e05a\",\"Name\":\"Corridor\"},{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-153.1705,\"Y\":-580.19402,\"Z\":0.0},{\"X\":-206.8,\"Y\":-579.48763,\"Z\":0.0},{\"X\":-206.81976,\"Y\":-580.98749,\"Z\":0.0},{\"X\":-184.6588,\"Y\":-581.27939,\"Z\":0.0},{\"X\":-184.65879,\"Y\":-581.27864,\"Z\":0.0},{\"X\":-174.65966,\"Y\":-581.41035,\"Z\":0.0},{\"X\":-174.65967,\"Y\":-581.41109,\"Z\":0.0},{\"X\":-153.19026,\"Y\":-581.69388,\"Z\":0.0}]},\"Voids\":[],\"Id\":\"a02d7813-883b-4bd4-8bd5-47aa0ce8ac05\",\"Name\":null},{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-184.89513,\"Y\":-599.27708,\"Z\":0.0},{\"X\":-184.89588,\"Y\":-599.27707,\"Z\":0.0},{\"X\":-184.65879,\"Y\":-581.27864,\"Z\":0.0},{\"X\":-184.65805,\"Y\":-581.27865,\"Z\":0.0},{\"X\":-183.76997,\"Y\":-513.85917,\"Z\":0.0},{\"X\":-185.26983,\"Y\":-513.83941,\"Z\":0.0},{\"X\":-186.66607,\"Y\":-619.83625,\"Z\":0.0},{\"X\":-185.16621,\"Y\":-619.85601,\"Z\":0.0}]},\"Voids\":[],\"Id\":\"59c1f71d-7c88-4fa3-8b79-6d799f6f80f0\",\"Name\":null},{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-151.87004,\"Y\":-599.71136,\"Z\":0.0},{\"X\":-174.89674,\"Y\":-599.40804,\"Z\":0.0},{\"X\":-174.89675,\"Y\":-599.40879,\"Z\":0.0},{\"X\":-184.89588,\"Y\":-599.27707,\"Z\":0.0},{\"X\":-184.89587,\"Y\":-599.27633,\"Z\":0.0},{\"X\":-207.05688,\"Y\":-598.98441,\"Z\":0.0},{\"X\":-207.07664,\"Y\":-600.48427,\"Z\":0.0},{\"X\":-151.8898,\"Y\":-601.21122,\"Z\":0.0}]},\"Voids\":[],\"Id\":\"b320c3f1-eac5-46a9-9ed5-3bb49a5e38e9\",\"Name\":null},{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-172.44555,\"Y\":-527.14991,\"Z\":0.0},{\"X\":-173.94541,\"Y\":-527.13015,\"Z\":0.0},{\"X\":-174.66041,\"Y\":-581.41034,\"Z\":0.0},{\"X\":-174.65966,\"Y\":-581.41035,\"Z\":0.0},{\"X\":-174.89675,\"Y\":-599.40879,\"Z\":0.0},{\"X\":-174.89749,\"Y\":-599.40878,\"Z\":0.0},{\"X\":-175.1568,\"Y\":-619.09442,\"Z\":0.0},{\"X\":-173.65694,\"Y\":-619.11418,\"Z\":0.0}]},\"Voids\":[],\"Id\":\"82060be1-c38b-4eaf-aa5f-6792f6839f37\",\"Name\":null}]";
-            var otherPolys = Newtonsoft.Json.JsonConvert.DeserializeObject<List<Profile>>(otherPolysJson);
+            var otherPolys = JsonSerializer.Deserialize<List<Profile>>(otherPolysJson);
             var result = Elements.Geometry.Profile.Difference(new[] { p1 }, otherPolys);
         }
 
@@ -434,7 +435,7 @@ public void DifferenceFail2()
         {
             this.Name = nameof(DifferenceFail2);
             var json = File.ReadAllText("../../../models/Geometry/differenceFail2.json");
-            var profiles = JsonConvert.DeserializeObject<Dictionary<string, IEnumerable<Profile>>>(json);
+            var profiles = JsonSerializer.Deserialize<Dictionary<string, IEnumerable<Profile>>>(json);
             var firstSet = profiles["levelBoundaryCleaned"];
             var secondSet = profiles["insetProfiles"];
             var diff = Elements.Geometry.Profile.Difference(firstSet, secondSet);
@@ -449,10 +450,10 @@ public void SplitDonutProfileFromFunction()
         {
             Name = "SplitDonutProfileFromFunction";
 
-            var perim = Newtonsoft.Json.JsonConvert.DeserializeObject<Polygon>("{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":76.30921,\"Y\":46.63686,\"Z\":0.0},{\"X\":-75.42933,\"Y\":46.63686,\"Z\":0.0},{\"X\":-75.42933,\"Y\":-30.00397,\"Z\":0.0},{\"X\":76.30921,\"Y\":-30.00397,\"Z\":0.0}]}");
-            var voids = Newtonsoft.Json.JsonConvert.DeserializeObject<List<Polygon>>("[{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-69.42933,\"Y\":-24.00397,\"Z\":0.0},{\"X\":-69.42933,\"Y\":40.63686,\"Z\":0.0},{\"X\":70.30921,\"Y\":40.63686,\"Z\":0.0},{\"X\":70.30921,\"Y\":-24.00397,\"Z\":0.0}]}]");
+            var perim = JsonSerializer.Deserialize<Polygon>("{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":76.30921,\"Y\":46.63686,\"Z\":0.0},{\"X\":-75.42933,\"Y\":46.63686,\"Z\":0.0},{\"X\":-75.42933,\"Y\":-30.00397,\"Z\":0.0},{\"X\":76.30921,\"Y\":-30.00397,\"Z\":0.0}]}");
+            var voids = JsonSerializer.Deserialize<List<Polygon>>("[{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-69.42933,\"Y\":-24.00397,\"Z\":0.0},{\"X\":-69.42933,\"Y\":40.63686,\"Z\":0.0},{\"X\":70.30921,\"Y\":40.63686,\"Z\":0.0},{\"X\":70.30921,\"Y\":-24.00397,\"Z\":0.0}]}]");
             var profileToSplit = new Profile(perim, voids, Guid.NewGuid(), null);
-            var splitters = Newtonsoft.Json.JsonConvert.DeserializeObject<List<Polyline>>("[{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":76.40920999999999,\"Y\":46.63686,\"Z\":0.0},{\"X\":-75.52932999999997,\"Y\":46.63686,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":-75.42933,\"Y\":46.83686,\"Z\":0.0},{\"X\":-75.42933,\"Y\":-30.20397,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":-75.52932999999999,\"Y\":-30.00397,\"Z\":0.0},{\"X\":76.40920999999997,\"Y\":-30.00397,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":76.30921,\"Y\":-30.20397,\"Z\":0.0},{\"X\":76.30921,\"Y\":46.83686,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":-69.42933,\"Y\":-30.103969999999997,\"Z\":0.0},{\"X\":-69.42933,\"Y\":46.73686,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":-69.52932999999999,\"Y\":40.63686,\"Z\":0.0},{\"X\":70.40920999999997,\"Y\":40.63686,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":70.30921,\"Y\":46.73686000000001,\"Z\":0.0},{\"X\":70.30921,\"Y\":-30.103969999999997,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":70.40920999999999,\"Y\":-24.00397,\"Z\":0.0},{\"X\":-69.52932999999997,\"Y\":-24.00397,\"Z\":0.0}]}]");
+            var splitters = JsonSerializer.Deserialize<List<Polyline>>("[{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":76.40920999999999,\"Y\":46.63686,\"Z\":0.0},{\"X\":-75.52932999999997,\"Y\":46.63686,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":-75.42933,\"Y\":46.83686,\"Z\":0.0},{\"X\":-75.42933,\"Y\":-30.20397,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":-75.52932999999999,\"Y\":-30.00397,\"Z\":0.0},{\"X\":76.40920999999997,\"Y\":-30.00397,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":76.30921,\"Y\":-30.20397,\"Z\":0.0},{\"X\":76.30921,\"Y\":46.83686,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":-69.42933,\"Y\":-30.103969999999997,\"Z\":0.0},{\"X\":-69.42933,\"Y\":46.73686,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":-69.52932999999999,\"Y\":40.63686,\"Z\":0.0},{\"X\":70.40920999999997,\"Y\":40.63686,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":70.30921,\"Y\":46.73686000000001,\"Z\":0.0},{\"X\":70.30921,\"Y\":-30.103969999999997,\"Z\":0.0}]},{\"discriminator\":\"Elements.Geometry.Polyline\",\"Vertices\":[{\"X\":70.40920999999999,\"Y\":-24.00397,\"Z\":0.0},{\"X\":-69.52932999999997,\"Y\":-24.00397,\"Z\":0.0}]}]");
             Model.AddElement(perim);
             voids.ForEach((v) => Model.AddElement(v));
             Model.AddElements(splitters.Select(s => new ModelCurve(s, BuiltInMaterials.XAxis)));
@@ -519,8 +520,8 @@ public void ProfileInvalidWontThrow()
         public void DifferenceToleratesBadGeometry()
         {
             Name = nameof(DifferenceToleratesBadGeometry);
-            var cp = JsonConvert.DeserializeObject<List<Profile>>(File.ReadAllText("../../../models/Geometry/corridorProfiles.json"));
-            var lb = JsonConvert.DeserializeObject<Profile>(File.ReadAllText("../../../models/Geometry/levelBoundary.json"));
+            var cp = JsonSerializer.Deserialize<List<Profile>>(File.ReadAllText("../../../models/Geometry/corridorProfiles.json"));
+            var lb = JsonSerializer.Deserialize<Profile>(File.ReadAllText("../../../models/Geometry/levelBoundary.json"));
             var results = Elements.Geometry.Profile.Difference(new[] { lb }, cp);
             Model.AddElements(results);
             Model.AddElements(results.SelectMany(r => r.ToModelCurves()));
diff --git a/Elements/test/SolidTests.cs b/Elements/test/SolidTests.cs
index 83706c19c..aab19f873 100644
--- a/Elements/test/SolidTests.cs
+++ b/Elements/test/SolidTests.cs
@@ -10,6 +10,7 @@
 using Elements.Serialization.glTF;
 using Elements.Serialization.JSON;
 using System.Linq;
+using Newtonsoft.Json;
 
 namespace Elements.Tests
 {
@@ -270,7 +271,7 @@ public void CreateLaminaWithHoles()
         public void ConstructedSolidProducesValidGlb()
         {
             Name = nameof(ConstructedSolidProducesValidGlb);
-            var allPolygons = JsonConvert.DeserializeObject<List<(Polygon outerLoop, List<Polygon> innerLoops)>>(File.ReadAllText("../../../models/Geometry/ExampleConstructedSolidPolygons.json"));
+            var allPolygons = System.Text.Json.JsonSerializer.Deserialize<List<(Polygon outerLoop, List<Polygon> innerLoops)>>(File.ReadAllText("../../../models/Geometry/ExampleConstructedSolidPolygons.json"));
             var solid = new Solid();
             foreach (var face in allPolygons)
             {
diff --git a/Elements/test/TopographyTests.cs b/Elements/test/TopographyTests.cs
index 7700c5ffb..4e4711324 100644
--- a/Elements/test/TopographyTests.cs
+++ b/Elements/test/TopographyTests.cs
@@ -12,6 +12,7 @@
 using Xunit;
 using Xunit.Abstractions;
 using SixLabors.ImageSharp.Processing;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -31,7 +32,7 @@ public void Example()
 
             // <example>
             // Read topo elevations from a file.
-            var data = JsonConvert.DeserializeObject<Dictionary<string, double[]>>(File.ReadAllText("./elevations.json"));
+            var data = JsonSerializer.Deserialize<Dictionary<string, double[]>>(File.ReadAllText("./elevations.json"));
             var latitude = 45;
             var elevations = data["points"];
             var tileSize = WebMercatorProjection.GetTileSizeMeters(latitude, 15);
@@ -411,7 +412,7 @@ public void CreateTopoFromMesh()
         private static Topography CreateTopoFromMapboxElevations(Vector3 origin = default(Vector3), Material material = null)
         {
             // Read topo elevations
-            var data = JsonConvert.DeserializeObject<Dictionary<string, double[]>>(File.ReadAllText("./elevations.json"));
+            var data = JsonSerializer.Deserialize<Dictionary<string, double[]>>(File.ReadAllText("./elevations.json"));
             var elevations = data["points"];
 
             // Compute the mapbox tile side length.

From 769a49813b2d9be6df5fca5f73b36f14899633d6 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Apr 2022 18:22:20 -0700
Subject: [PATCH 032/150] Convert geojson to system.text.json.

---
 Elements/src/GeoJSON/Feature.cs             |  7 +-
 Elements/src/GeoJSON/Geometry.cs            | 18 -----
 Elements/src/GeoJSON/GeometryCollection.cs  | 26 +++++++
 Elements/src/GeoJSON/GeometryConverter.cs   | 85 +++++++++++----------
 Elements/src/GeoJSON/PositionConverter.cs   | 44 ++++++-----
 Elements/src/GeoJSON/PropertiesConverter.cs | 63 +++++++++++++++
 Elements/test/GeoJSONTests.cs               |  3 +-
 7 files changed, 166 insertions(+), 80 deletions(-)
 create mode 100644 Elements/src/GeoJSON/GeometryCollection.cs
 create mode 100644 Elements/src/GeoJSON/PropertiesConverter.cs

diff --git a/Elements/src/GeoJSON/Feature.cs b/Elements/src/GeoJSON/Feature.cs
index fefe7a22c..2d62e6a2f 100644
--- a/Elements/src/GeoJSON/Feature.cs
+++ b/Elements/src/GeoJSON/Feature.cs
@@ -24,6 +24,7 @@ public string Type
         /// All properties of the feature.
         /// </summary>
         [JsonPropertyName("properties")]
+        [JsonConverter(typeof(PropertiesConverter))]
         public Dictionary<string, object> Properties { get; set; }
 
         /// <summary>
@@ -31,7 +32,7 @@ public string Type
         /// </summary>
         [JsonPropertyName("geometry")]
         [JsonConverter(typeof(GeometryConverter))]
-        public Geometry Geometry { get; set; }
+        public object Geometry { get; set; }
 
         /// <summary>
         /// The bounding box of the feature.
@@ -44,10 +45,10 @@ public string Type
         /// </summary>
         /// <param name="geometry"></param>
         /// <param name="properties"></param>
-        public Feature(Geometry geometry, Dictionary<string, object> properties)
+        public Feature(object geometry, Dictionary<string, object> properties)
         {
             this.Geometry = geometry;
-            this.Properties = properties;
+            this.Properties = properties ?? new Dictionary<string, object>();
         }
     }
 }
\ No newline at end of file
diff --git a/Elements/src/GeoJSON/Geometry.cs b/Elements/src/GeoJSON/Geometry.cs
index 6bad28823..497870691 100644
--- a/Elements/src/GeoJSON/Geometry.cs
+++ b/Elements/src/GeoJSON/Geometry.cs
@@ -240,22 +240,4 @@ public MultiPolygon(Position[][] coordinates)
             this.Coordinates = coordinates;
         }
     }
-
-    /// <summary>
-    /// A GeoJSON geometry collection.
-    /// </summary>
-    public class GeometryCollection
-    {
-        [JsonPropertyName("geometries")]
-        Geometry[] Geometries { get; }
-
-        /// <summary>
-        /// Construct a geometry collection.
-        /// </summary>
-        /// <param name="geometries">An array of geometries.</param>
-        public GeometryCollection(Geometry[] geometries)
-        {
-            this.Geometries = geometries;
-        }
-    }
 }
\ No newline at end of file
diff --git a/Elements/src/GeoJSON/GeometryCollection.cs b/Elements/src/GeoJSON/GeometryCollection.cs
new file mode 100644
index 000000000..1f80bfbed
--- /dev/null
+++ b/Elements/src/GeoJSON/GeometryCollection.cs
@@ -0,0 +1,26 @@
+using System.Text.Json.Serialization;
+
+namespace Elements.GeoJSON
+{
+
+    /// <summary>
+    /// A GeoJSON geometry collection.
+    /// </summary>
+    public class GeometryCollection
+    {
+        /// <summary>
+        /// A collection of geometry.
+        /// </summary>
+        [JsonPropertyName("geometries")]
+        public Geometry[] Geometries { get; }
+
+        /// <summary>
+        /// Construct a geometry collection.
+        /// </summary>
+        /// <param name="geometries">An array of geometries.</param>
+        public GeometryCollection(Geometry[] geometries)
+        {
+            this.Geometries = geometries;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/src/GeoJSON/GeometryConverter.cs b/Elements/src/GeoJSON/GeometryConverter.cs
index 8470be071..cd1b31f02 100644
--- a/Elements/src/GeoJSON/GeometryConverter.cs
+++ b/Elements/src/GeoJSON/GeometryConverter.cs
@@ -1,55 +1,60 @@
 using System;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.GeoJSON
 {
-    public class GeometryConverter : JsonConverter
+    /// <summary>
+    /// Convert geojson geometry.
+    /// </summary>
+    public class GeometryConverter : JsonConverter<object>
     {
-        public override bool CanConvert(Type objectType)
+        /// <summary>
+        /// Read geometry.
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <param name="typeToConvert"></param>
+        /// <param name="options"></param>
+        public override object Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            if (typeof(Geometry).IsAssignableFrom(objectType))
+            using (var doc = JsonDocument.ParseValue(ref reader))
             {
-                return true;
-            }
-            return false;
-        }
+                var root = doc.RootElement;
 
-        public override bool CanWrite
-        {
-            get { return false; }
-        }
-
-        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
-        {
-            var jsonObject = JObject.Load(reader);
-            string typeName = (jsonObject["type"]).ToString();
-            switch (typeName)
-            {
-                case "Point":
-                    return jsonObject.ToObject<Point>();
-                case "Line":
-                    return jsonObject.ToObject<Line>();
-                case "MultiPoint":
-                    return jsonObject.ToObject<MultiPoint>();
-                case "LineString":
-                    return jsonObject.ToObject<LineString>();
-                case "MultiLineString":
-                    return jsonObject.ToObject<MultiLineString>();
-                case "Polygon":
-                    return jsonObject.ToObject<Polygon>();
-                case "MultiPolygon":
-                    return jsonObject.ToObject<MultiPolygon>();
-                case "GeometryCollection":
-                    return jsonObject.ToObject<GeometryCollection>();
-                default:
-                    throw new Exception($"The type found in the GeoJSON, {typeName}, could not be resolved.");
+                var typeName = root.GetProperty("type").GetString();
+                switch (typeName)
+                {
+                    case "Point":
+                        return root.Deserialize<Point>();
+                    case "Line":
+                        return root.Deserialize<Line>();
+                    case "MultiPoint":
+                        return root.Deserialize<MultiPoint>();
+                    case "LineString":
+                        return root.Deserialize<LineString>();
+                    case "MultiLineString":
+                        return root.Deserialize<MultiLineString>();
+                    case "Polygon":
+                        return root.Deserialize<Polygon>();
+                    case "MultiPolygon":
+                        return root.Deserialize<MultiPolygon>();
+                    case "GeometryCollection":
+                        return root.Deserialize<GeometryCollection>();
+                    default:
+                        throw new Exception($"The type found in the GeoJSON, {typeName}, could not be resolved.");
+                }
             }
         }
 
-        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        /// <summary>
+        /// Write geometry.
+        /// </summary>
+        /// <param name="writer"></param>
+        /// <param name="value"></param>
+        /// <param name="options"></param>
+        public override void Write(Utf8JsonWriter writer, object value, JsonSerializerOptions options)
         {
-            throw new NotImplementedException();
+            JsonSerializer.Serialize(writer, value);
         }
     }
 }
\ No newline at end of file
diff --git a/Elements/src/GeoJSON/PositionConverter.cs b/Elements/src/GeoJSON/PositionConverter.cs
index 81bad484d..a685cbe5f 100644
--- a/Elements/src/GeoJSON/PositionConverter.cs
+++ b/Elements/src/GeoJSON/PositionConverter.cs
@@ -1,33 +1,41 @@
 using System;
-using Newtonsoft.Json;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.GeoJSON
 {
-    public class PositionConverter : JsonConverter
+    /// <summary>
+    /// Convert a geojson position object to an array of coordinates.
+    /// </summary>
+    public class PositionConverter : JsonConverter<Position>
     {
-        public override bool CanConvert(Type objectType)
+        /// <summary>
+        /// Read a position.
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <param name="typeToConvert"></param>
+        /// <param name="options"></param>
+        public override Position Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            if (objectType == typeof(Position))
+            using (var doc = JsonDocument.ParseValue(ref reader))
             {
-                return true;
+                var root = doc.RootElement;
+                var values = root.Deserialize<double[]>();
+                return new Position(values[1], values[0]);
             }
-            return false;
         }
 
-        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        /// <summary>
+        /// Write a position.
+        /// </summary>
+        /// <param name="writer"></param>
+        /// <param name="value"></param>
+        /// <param name="options"></param>
+        public override void Write(Utf8JsonWriter writer, Position value, JsonSerializerOptions options)
         {
-            var lon = reader.ReadAsDouble();
-            var lat = reader.ReadAsDouble();
-            reader.Read();
-            return new Position(lat.Value, lon.Value);
-        }
-
-        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
-        {
-            var p = (Position)value;
             writer.WriteStartArray();
-            writer.WriteValue(p.Longitude);
-            writer.WriteValue(p.Latitude);
+            writer.WriteNumberValue(value.Longitude);
+            writer.WriteNumberValue(value.Latitude);
             writer.WriteEndArray();
         }
     }
diff --git a/Elements/src/GeoJSON/PropertiesConverter.cs b/Elements/src/GeoJSON/PropertiesConverter.cs
new file mode 100644
index 000000000..75b9b1d5c
--- /dev/null
+++ b/Elements/src/GeoJSON/PropertiesConverter.cs
@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Elements.GeoJSON
+{
+    /// <summary>
+    /// Convert geojson properties.
+    /// </summary>
+    public class PropertiesConverter : JsonConverter<Dictionary<string, object>>
+    {
+        /// <summary>
+        /// Read properties.
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <param name="typeToConvert"></param>
+        /// <param name="options"></param>
+        /// <returns></returns>
+        public override Dictionary<string, object> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            var properties = new Dictionary<string, object>();
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+                foreach (var el in root.EnumerateObject())
+                {
+                    var key = el.Name;
+                    switch (el.Value.ValueKind)
+                    {
+                        // TODO: Support additional types of geojson properties
+                        // as needed.
+                        case JsonValueKind.Number:
+                            if (el.Value.TryGetInt32(out var intValue))
+                            {
+                                properties.Add(key, intValue);
+                            }
+                            else if (el.Value.TryGetDouble(out var doubleValue))
+                            {
+                                properties.Add(key, doubleValue);
+                            }
+                            break;
+                        case JsonValueKind.String:
+                            properties.Add(key, el.Value.GetString());
+                            break;
+                    }
+                }
+            }
+            return properties;
+        }
+
+        /// <summary>
+        /// Write properties.
+        /// </summary>
+        /// <param name="writer"></param>
+        /// <param name="value"></param>
+        /// <param name="options"></param>
+        public override void Write(Utf8JsonWriter writer, Dictionary<string, object> value, JsonSerializerOptions options)
+        {
+            JsonSerializer.Serialize(writer, value);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/test/GeoJSONTests.cs b/Elements/test/GeoJSONTests.cs
index b614d73ad..0ef1b0ad6 100644
--- a/Elements/test/GeoJSONTests.cs
+++ b/Elements/test/GeoJSONTests.cs
@@ -1,5 +1,4 @@
 using Elements.GeoJSON;
-using System.Text.Json.Serialization;
 using System;
 using Xunit;
 using Line = Elements.GeoJSON.Line;
@@ -144,6 +143,8 @@ public void FeatureCollection_SerializeValid()
             var f1 = new Feature(p, null);
             var f2 = new Feature(l, null);
             var fc = new FeatureCollection(new[] { f1, f2 });
+            f1.Properties.Add("foo", "This is foo.");
+            f2.Properties.Add("bar", 42);
             var json = JsonSerializer.Serialize(fc);
         }
 

From 801c2723874fd4f0afae53979f6b8abc970865c9 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Apr 2022 00:29:18 -0700
Subject: [PATCH 033/150] Convert model methods to use new logic. All model
 tests pass.

---
 Elements.Benchmarks/Trace.cs                  |   2 +-
 Elements/src/ContentCatalog.cs                |   1 -
 Elements/src/ContentElement.cs                |   1 -
 Elements/src/Floor.cs                         |   3 +
 Elements/src/GeoJSON/GeometryConverter.cs     |   2 +-
 Elements/src/GeometricElement.cs              |   1 -
 Elements/src/Mass.cs                          |   2 +
 Elements/src/MeshElement.cs                   |   2 +
 Elements/src/Model.cs                         |  84 ++--------
 .../Serialization/JSON/ElementConverter.cs    |  15 +-
 .../JSON/JsonInheritanceConverter.cs          |  12 +-
 .../src/Serialization/JSON/MeshConverter.cs   | 155 +++++++++---------
 .../src/Serialization/JSON/ModelConverter.cs  |  53 +++---
 .../JSON/PropertySerializationExtensions.cs   |   8 +
 Elements/src/Wall.cs                          |   2 +
 Elements/src/WallByProfile.cs                 |   2 -
 Elements/test/Grid2dElement.cs                |   2 -
 Elements/test/MeshTests.cs                    |  12 +-
 Elements/test/ModelTests.cs                   |  46 +-----
 Elements/test/StructuralFramingTests.cs       |   4 -
 Elements/test/UserElementTests.cs             |   4 +-
 21 files changed, 184 insertions(+), 229 deletions(-)

diff --git a/Elements.Benchmarks/Trace.cs b/Elements.Benchmarks/Trace.cs
index 5aaf7e45c..dd2eba9ec 100644
--- a/Elements.Benchmarks/Trace.cs
+++ b/Elements.Benchmarks/Trace.cs
@@ -17,7 +17,7 @@ public void TraceModelCreation()
             var factory = new HSSPipeProfileFactory();
             var hssProfiles = factory.AllProfiles().ToList();
             var model = ElementCreation.DrawAllBeams(hssProfiles);
-            model.ToJson(gatherSubElements: false);
+            model.ToJson();
         }
     }
 
diff --git a/Elements/src/ContentCatalog.cs b/Elements/src/ContentCatalog.cs
index 0bcabcc35..8161bbdd8 100644
--- a/Elements/src/ContentCatalog.cs
+++ b/Elements/src/ContentCatalog.cs
@@ -9,7 +9,6 @@ namespace Elements
     /// <summary>
     /// A collection of content elements.
     /// </summary>
-    [JsonConverter(typeof(ElementConverter<ContentCatalog>))]
     public class ContentCatalog : Element
     {
         /// <summary>The content elements in this catalog.</summary>
diff --git a/Elements/src/ContentElement.cs b/Elements/src/ContentElement.cs
index f7bfe31c1..7ac148df6 100644
--- a/Elements/src/ContentElement.cs
+++ b/Elements/src/ContentElement.cs
@@ -10,7 +10,6 @@ namespace Elements
     /// <summary>
     /// An element representing user content.
     /// </summary>
-    [JsonConverter(typeof(ElementConverter<ContentElement>))]
     public class ContentElement : GeometricElement
     {
         /// <summary>The URI of the gltf for this element.</summary>
diff --git a/Elements/src/Floor.cs b/Elements/src/Floor.cs
index 768dc0673..9c6cf278e 100644
--- a/Elements/src/Floor.cs
+++ b/Elements/src/Floor.cs
@@ -4,6 +4,7 @@
 using Elements.Geometry.Solids;
 using System.Collections.Generic;
 using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -29,6 +30,7 @@ public class Floor : GeometricElement, IHasOpenings
         /// <summary>
         /// The untransformed profile of the floor.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile { get; set; }
 
         /// <summary>
@@ -47,6 +49,7 @@ public class Floor : GeometricElement, IHasOpenings
         /// <param name="isElementDefinition">Is this an element definition?</param>
         /// <param name="id">The floor's id.</param>
         /// <param name="name">The floor's name.</param>
+        [JsonConstructor]
         public Floor(Profile profile,
                      double thickness,
                      Transform transform = null,
diff --git a/Elements/src/GeoJSON/GeometryConverter.cs b/Elements/src/GeoJSON/GeometryConverter.cs
index cd1b31f02..1ee2524f1 100644
--- a/Elements/src/GeoJSON/GeometryConverter.cs
+++ b/Elements/src/GeoJSON/GeometryConverter.cs
@@ -54,7 +54,7 @@ public override object Read(ref Utf8JsonReader reader, Type typeToConvert, JsonS
         /// <param name="options"></param>
         public override void Write(Utf8JsonWriter writer, object value, JsonSerializerOptions options)
         {
-            JsonSerializer.Serialize(writer, value);
+            JsonSerializer.Serialize(writer, value, options);
         }
     }
 }
\ No newline at end of file
diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index 5809d435b..a179ff097 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -12,7 +12,6 @@ namespace Elements
     /// <summary>
     /// An element with a geometric representation.
     /// </summary>
-    [JsonConverter(typeof(ElementConverter<GeometricElement>))]
     public class GeometricElement : Element
     {
         /// <summary>The element's transform.</summary>
diff --git a/Elements/src/Mass.cs b/Elements/src/Mass.cs
index 10d06c54d..774ae370b 100644
--- a/Elements/src/Mass.cs
+++ b/Elements/src/Mass.cs
@@ -3,6 +3,7 @@
 using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -17,6 +18,7 @@ public class Mass : GeometricElement
         /// <summary>
         /// The profile of the mass.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile { get; set; }
 
         /// <summary>
diff --git a/Elements/src/MeshElement.cs b/Elements/src/MeshElement.cs
index 0f3e65f65..ff3970f45 100644
--- a/Elements/src/MeshElement.cs
+++ b/Elements/src/MeshElement.cs
@@ -2,6 +2,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Interfaces;
 using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -21,6 +22,7 @@ public class MeshElement : GeometricElement, ITessellate
         /// <summary>
         /// The element's mesh.
         /// </summary>
+        [JsonConverter(typeof(MeshConverter))]
         public Mesh Mesh
         {
             get { return this._mesh; }
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 0e07514fe..c0ca5807a 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -14,7 +14,6 @@
 using System.IO;
 using System.Text.Json;
 using System.Diagnostics;
-using Newtonsoft.Json;
 
 namespace Elements
 {
@@ -213,25 +212,12 @@ public string ToJson(bool indent = false, bool gatherSubElements = true)
         {
             var exportModel = CreateExportModel(gatherSubElements);
 
-            return JsonConvert.SerializeObject(exportModel, indent ? Formatting.Indented : Formatting.None);
-        }
-
-        /// <summary>
-        /// Serialize the model to JSON using default arguments.
-        /// </summary>
-        public string ToJson()
-        {
-            // The arguments here are meant to match the default arguments of the ToJson(bool, bool) method above.
-            return ToJson(false, true);
-        }
-
-        /// <summary>
-        /// Serialize the model to JSON to match default arguments.
-        /// TODO this method can be removed after Hypar.Functions release 0.9.11 occurs.
-        /// </summary>
-        public string ToJson(bool indent = false)
-        {
-            return ToJson(indent, true);
+            var serializerOptions = new JsonSerializerOptions
+            {
+                WriteIndented = indent
+            };
+            serializerOptions.Converters.Add(new ElementConverterFactory());
+            return JsonSerializer.Serialize(exportModel, serializerOptions);
         }
 
         /// <summary>
@@ -246,12 +232,8 @@ public void ToJson(string path, bool gatherSubElements = true)
             // Json.net recommends writing to a stream for anything over 85k to avoid a string on the large object heap.
             // https://www.newtonsoft.com/json/help/html/Performance.htm
             using (FileStream s = File.Create(path))
-            using (StreamWriter writer = new StreamWriter(s))
-            using (JsonTextWriter jsonWriter = new JsonTextWriter(writer))
             {
-                var serializer = new Newtonsoft.Json.JsonSerializer();
-                serializer.Serialize(jsonWriter, exportModel);
-                jsonWriter.Flush();
+                JsonSerializer.Serialize(s, exportModel);
             }
         }
 
@@ -274,49 +256,7 @@ internal Model CreateExportModel(bool gatherSubElements)
         /// Deserialize a model from JSON.
         /// </summary>
         /// <param name="json">The JSON representing the model.</param>
-        /// <param name="errors">A collection of deserialization errors.</param>
-        /// <param name="forceTypeReload">Option to force reloading the inernal type cache. Use if you add types dynamically in your code.</param>
-        public static Model FromJson(string json, out List<string> errors, bool forceTypeReload = false)
-        {
-            // When user elements have been loaded into the app domain, they haven't always been
-            // loaded into the InheritanceConverter's Cache.  This does have some overhead,
-            // but is useful here, at the Model level, to ensure user types are available.
-            var deserializationErrors = new List<string>();
-            if (forceTypeReload)
-            {
-                JsonInheritanceConverter.RefreshAppDomainTypeCache(out var typeLoadErrors);
-                deserializationErrors.AddRange(typeLoadErrors);
-            }
-
-            var model = JsonConvert.DeserializeObject<Model>(json, new JsonSerializerSettings()
-            {
-                Error = (sender, args) =>
-                {
-                    deserializationErrors.Add(args.ErrorContext.Error.Message);
-                    args.ErrorContext.Handled = true;
-                }
-            });
-            errors = deserializationErrors;
-            JsonInheritanceConverter.Elements.Clear();
-            return model;
-        }
-
-        public static Model FromJson(string json, bool forceTypeReload = false)
-        {
-            return FromJson(json, out _, forceTypeReload);
-        }
-
-        /// <summary>
-        /// Deserialize a model from JSON
-        /// </summary>
-        public string ToJsonNew()
-        {
-            var serializerOptions = new JsonSerializerOptions();
-            serializerOptions.Converters.Add(new ElementConverterFactory());
-            return System.Text.Json.JsonSerializer.Serialize(this, serializerOptions);
-        }
-
-        public static Model FromJsonNew(string json)
+        public static Model FromJson(string json)
         {
             var sw = new Stopwatch();
             sw.Start();
@@ -331,7 +271,7 @@ public static Model FromJsonNew(string json)
 
                 var options = new JsonSerializerOptions()
                 {
-                    PropertyNameCaseInsensitive = true
+                    PropertyNameCaseInsensitive = true,
                 };
 
                 // Our custom reference handler will cache elements by id as
@@ -340,7 +280,11 @@ public static Model FromJsonNew(string json)
                 var refHandler = new ElementReferenceHandler(typeCache, elementsElement);
                 options.ReferenceHandler = refHandler;
 
-                model = System.Text.Json.JsonSerializer.Deserialize<Model>(json, options);
+                // We use the model converter here so that we have a chance to 
+                // intercept the creation of elements when things go wrong.
+                options.Converters.Add(new ModelConverter());
+
+                model = JsonSerializer.Deserialize<Model>(json, options);
 
                 // Resetting the reference handler, empties the internal
                 // elements cache.
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 3b4fb1a70..b3e4bc0ca 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -38,7 +38,20 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                 var root = doc.RootElement;
 
                 var discriminator = root.GetProperty("discriminator").GetString();
-                var derivedType = resolver.TypeCache[discriminator];
+
+                if (!resolver.TypeCache.TryGetValue(discriminator, out var derivedType))
+                {
+                    // The type could not be found. See if it has the hallmarks
+                    // of a geometric element and deserialize it as such if possible.
+                    if (root.TryGetProperty("Representation", out _))
+                    {
+                        derivedType = typeof(GeometricElement);
+                    }
+                    else
+                    {
+                        return default;
+                    }
+                }
 
                 // Use the type info to get all properties which are Element
                 // references, and deserialize those first.
diff --git a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs b/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
index 4f6cd7387..ea904c470 100644
--- a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
+++ b/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
@@ -4,6 +4,8 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
+using Elements.Geometry;
+using Elements.Geometry.Solids;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 
@@ -115,10 +117,14 @@ private static bool IsValidTypeForElements(Type t)
         {
             if (t.IsPublic && t.IsClass)
             {
-                var attrib = t.GetCustomAttribute<JsonConverterAttribute>();
-                if (attrib != null && attrib.ConverterType == typeof(JsonInheritanceConverter))
+                var attrib = t.GetCustomAttribute<System.Text.Json.Serialization.JsonConverterAttribute>();
+                if (attrib != null && attrib.ConverterType.GenericTypeArguments.Length > 0)
                 {
-                    return true;
+                    var valid = attrib.ConverterType.GenericTypeArguments[0] == t
+                        || attrib.ConverterType == typeof(ElementConverter<Element>)
+                        || attrib.ConverterType == typeof(ElementConverter<SolidOperation>)
+                        || attrib.ConverterType == typeof(ElementConverter<Curve>);
+                    return valid;
                 }
             }
 
diff --git a/Elements/src/Serialization/JSON/MeshConverter.cs b/Elements/src/Serialization/JSON/MeshConverter.cs
index a6f19ec09..329930f54 100644
--- a/Elements/src/Serialization/JSON/MeshConverter.cs
+++ b/Elements/src/Serialization/JSON/MeshConverter.cs
@@ -4,22 +4,16 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Geometry;
-using Newtonsoft.Json.Linq;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
+using System.Text.Json;
 
 namespace Elements.Serialization.JSON
 {
     /// <summary>
     /// Triangle converter.
     /// </summary>
-    public class MeshConverter : JsonConverter
+    public class MeshConverter : JsonConverter<Mesh>
     {
-        public override bool CanConvert(Type objectType)
-        {
-            return objectType == typeof(Mesh);
-        }
-
-
         // There are currently two version of the Mesh schema used on our platform.  
         // One used in explore and one used in the Elements Library.
         // Explore - https://hypar.io/Schemas/Mesh.json - used in input_schema
@@ -27,103 +21,106 @@ public override bool CanConvert(Type objectType)
         // TODO These schemas should converge to one. They both should change to match the serialized format of the 
         // data that is being transmitted on the platform.  Neither schema matches the desired serialization format currently.
         // The desired schema format is the one this converter reads/writes, it is very compact.
-        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        public override Mesh Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            if (reader.Value == null && reader.TokenType == JsonToken.Null)
+            if (reader.TokenType == JsonTokenType.Null)
             {
                 return null;
             }
-            var obj = JObject.Load(reader);
-            var mesh = new Mesh();
 
-            if (obj.TryGetValue("vertices", out var vertices))
+            using (var doc = JsonDocument.ParseValue(ref reader))
             {
-                //input_schema Mesh path
-                var allVertices = new List<Vertex>(vertices.Count());
-                foreach (var v in vertices)
-                {
-                    var i = v["index"].ToObject<int>();
-                    var p = v["position"];
-                    var x2 = p["X"].ToObject<double>();
-
-                    allVertices.Insert(i, new Vertex(new Vector3(
-                                                            v["position"]["X"].ToObject<double>(),
-                                                            v["position"]["Y"].ToObject<double>(),
-                                                            v["position"]["Z"].ToObject<double>()
-                                                                )
-                                                    ));
-                }
-                foreach (var v in allVertices)
-                {
-                    mesh.AddVertex(v);
-                }
+                var root = doc.RootElement;
 
-                foreach (var t in obj["triangles"])
-                {
-                    var indices = t["vertexIndices"];
-                    mesh.AddTriangle(allVertices[indices[0].ToObject<int>()],
-                                      allVertices[indices[1].ToObject<int>()],
-                                      allVertices[indices[2].ToObject<int>()]);
-                }
-            }
-            else
-            {
-                //Elements Mesh path
-                var positions = obj["Positions"].ToObject<List<double>>();
-                var colors = obj["Colors"].ToObject<List<double>>();
-                var normals = obj["Normals"].ToObject<List<double>>();
-                var uvs = obj["UVs"].ToObject<List<double>>();
+                var mesh = new Mesh();
 
-                for (var i = 0; i < positions.Count / 3; i++)
+                if (root.TryGetProperty("vertices", out var verticesElement))
                 {
-                    var pi = i * 3;
-                    var ui = i * 2;
-                    var ci = i * 4;
-                    mesh.AddVertex(new Vector3(positions[pi],
-                                                   positions[pi + 1],
-                                                   positions[pi + 2]), new UV(uvs[ui],
-                                                                              uvs[ui + 1]), new Vector3(normals[pi],
-                                                                                                        normals[pi + 1],
-                                                                                                        normals[pi + 2]), new Color(colors[ci],
-                                                                                                                                    colors[ci + 1],
-                                                                                                                                    colors[ci + 2],
-                                                                                                                                    colors[ci + 3]));
+                    //input_schema Mesh path
+                    var allVertices = new List<Vertex>(verticesElement.GetArrayLength());
+                    foreach (var v in verticesElement.EnumerateArray())
+                    {
+                        ;
+                        var i = v.GetProperty("index").GetInt32();
+                        var p = v.GetProperty("position");
+
+                        allVertices.Insert(i, new Vertex(new Vector3(
+                                                                p.GetProperty("X").GetDouble(),
+                                                                p.GetProperty("Y").GetDouble(),
+                                                                p.GetProperty("Z").GetDouble()
+                                                                    )
+                                                        ));
+                    }
+                    foreach (var v in allVertices)
+                    {
+                        mesh.AddVertex(v);
+                    }
+
+                    foreach (var t in root.GetProperty("triangles").EnumerateArray())
+                    {
+                        var indices = t.GetProperty("vertexIndices");
+                        mesh.AddTriangle(allVertices[indices[0].GetInt32()],
+                                          allVertices[indices[1].GetInt32()],
+                                          allVertices[indices[2].GetInt32()]);
+                    }
                 }
-
-                var triangles = obj["Triangles"].ToObject<List<int>>();
-                for (var i = 0; i < triangles.Count; i += 3)
+                else
                 {
-                    var a = mesh.Vertices[triangles[i]];
-                    var b = mesh.Vertices[triangles[i + 1]];
-                    var c = mesh.Vertices[triangles[i + 2]];
-                    var tri = new Triangle(a, b, c);
-                    mesh.AddTriangle(tri);
+                    //Elements Mesh path
+                    var positions = root.GetProperty("Positions").Deserialize<List<double>>();
+                    var colors = root.GetProperty("Colors").Deserialize<List<double>>();
+                    var normals = root.GetProperty("Normals").Deserialize<List<double>>();
+                    var uvs = root.GetProperty("UVs").Deserialize<List<double>>();
+
+                    for (var i = 0; i < positions.Count / 3; i++)
+                    {
+                        var pi = i * 3;
+                        var ui = i * 2;
+                        var ci = i * 4;
+                        mesh.AddVertex(new Vector3(positions[pi],
+                                                       positions[pi + 1],
+                                                       positions[pi + 2]), new UV(uvs[ui],
+                                                                                  uvs[ui + 1]), new Vector3(normals[pi],
+                                                                                                            normals[pi + 1],
+                                                                                                            normals[pi + 2]), new Color(colors[ci],
+                                                                                                                                        colors[ci + 1],
+                                                                                                                                        colors[ci + 2],
+                                                                                                                                        colors[ci + 3]));
+                    }
+
+                    var triangles = root.GetProperty("Triangles").Deserialize<List<int>>();
+                    for (var i = 0; i < triangles.Count; i += 3)
+                    {
+                        var a = mesh.Vertices[triangles[i]];
+                        var b = mesh.Vertices[triangles[i + 1]];
+                        var c = mesh.Vertices[triangles[i + 2]];
+                        var tri = new Triangle(a, b, c);
+                        mesh.AddTriangle(tri);
+                    }
                 }
-            }
 
-            return mesh;
+                return mesh;
+            }
         }
 
-        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        public override void Write(Utf8JsonWriter writer, Mesh value, JsonSerializerOptions options)
         {
-            var m = (Mesh)value;
-
             writer.WriteStartObject();
 
             writer.WritePropertyName("Positions");
-            serializer.Serialize(writer, m.Vertices.SelectMany(v => new[] { v.Position.X, v.Position.Y, v.Position.Z }));
+            JsonSerializer.Serialize(writer, value.Vertices.SelectMany(v => new[] { v.Position.X, v.Position.Y, v.Position.Z }));
 
             writer.WritePropertyName("Normals");
-            serializer.Serialize(writer, m.Vertices.SelectMany(v => new[] { v.Normal.X, v.Normal.Y, v.Normal.Z }));
+            JsonSerializer.Serialize(writer, value.Vertices.SelectMany(v => new[] { v.Normal.X, v.Normal.Y, v.Normal.Z }));
 
             writer.WritePropertyName("UVs");
-            serializer.Serialize(writer, m.Vertices.SelectMany(v => new[] { v.UV.U, v.UV.V }));
+            JsonSerializer.Serialize(writer, value.Vertices.SelectMany(v => new[] { v.UV.U, v.UV.V }));
 
             writer.WritePropertyName("Colors");
-            serializer.Serialize(writer, m.Vertices.SelectMany(v => new[] { v.Color.Red, v.Color.Green, v.Color.Blue, v.Color.Alpha }));
+            JsonSerializer.Serialize(writer, value.Vertices.SelectMany(v => new[] { v.Color.Red, v.Color.Green, v.Color.Blue, v.Color.Alpha }));
 
             writer.WritePropertyName("Triangles");
-            serializer.Serialize(writer, m.Triangles.SelectMany(t => new[] { t.Vertices[0].Index, t.Vertices[1].Index, t.Vertices[2].Index }));
+            JsonSerializer.Serialize(writer, value.Triangles.SelectMany(t => new[] { t.Vertices[0].Index, t.Vertices[1].Index, t.Vertices[2].Index }));
 
             writer.WriteEndObject();
         }
diff --git a/Elements/src/Serialization/JSON/ModelConverter.cs b/Elements/src/Serialization/JSON/ModelConverter.cs
index e120e7b69..b6c127f8a 100644
--- a/Elements/src/Serialization/JSON/ModelConverter.cs
+++ b/Elements/src/Serialization/JSON/ModelConverter.cs
@@ -1,36 +1,51 @@
 using System;
+using System.Collections.Generic;
 using System.Text.Json;
 using System.Text.Json.Serialization;
+using Elements.Geometry;
 
 namespace Elements.Serialization.JSON
 {
     internal class ModelConverter : JsonConverter<Model>
     {
-
         public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            throw new NotImplementedException();
-        }
-
-        public override void Write(Utf8JsonWriter writer, Model value, JsonSerializerOptions options)
-        {
-            writer.WriteStartObject();
+            var elements = new Dictionary<Guid, Element>();
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+                var elementsElement = root.GetProperty("Elements");
+                var transform = JsonSerializer.Deserialize<Transform>(root.GetProperty("Transform"));
 
-            // Write the transform
-            writer.WritePropertyName("Transform");
-            JsonSerializer.Serialize(writer, value.Transform);
+                foreach (var element in elementsElement.EnumerateObject())
+                {
+                    // TODO: This try/catch is only here to protect against
+                    // situations like null property values when the serializer
+                    // expects a value. Unlike json.net, system.text.json doesn't
+                    // have null value handling on read. 
+                    try
+                    {
+                        var id = Guid.Parse(element.Name);
+                        var e = JsonSerializer.Deserialize<Element>(element.Value, options);
+                        if (e != null)
+                        {
+                            elements.Add(id, e);
+                        }
+                    }
+                    catch
+                    {
+                        continue;
+                    }
+                }
 
-            //Write the elements dictionary
-            writer.WritePropertyName("Elements");
-            writer.WriteStartObject();
-            foreach (var kvp in value.Elements)
-            {
-                writer.WritePropertyName(kvp.Key.ToString());
-                JsonSerializer.Serialize(writer, kvp.Value, kvp.Value.GetType(), options);
+                var model = new Model(transform, elements);
+                return model;
             }
-            writer.WriteEndObject();
+        }
 
-            writer.WriteEndObject();
+        public override void Write(Utf8JsonWriter writer, Model value, JsonSerializerOptions options)
+        {
+            JsonSerializer.Serialize(writer, value, options);
         }
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
index 4e60a947d..e5bf87eda 100644
--- a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
+++ b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
@@ -96,6 +96,14 @@ public static void DeserializeElementProperties(Type derivedType,
             foreach (var elementProperty in elementProperties)
             {
                 var prop = root.GetProperty(elementProperty.Name);
+                if (prop.ValueKind == JsonValueKind.Null)
+                {
+                    // You'll get here when you've got a null reference to an element. 
+                    // Resolve to an empty id, causing the resolver to return null.
+                    resolver.ResolveReference(string.Empty);
+                    continue;
+                }
+
                 if (prop.TryGetGuid(out var referencedId))
                 {
                     if (resolver.ResolveReference(referencedId.ToString()) != null)
diff --git a/Elements/src/Wall.cs b/Elements/src/Wall.cs
index b04d6c3f4..ac5e1816f 100644
--- a/Elements/src/Wall.cs
+++ b/Elements/src/Wall.cs
@@ -4,6 +4,7 @@
 using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -21,6 +22,7 @@ public class Wall : GeometricElement, IHasOpenings
         /// <summary>
         /// The profile of the wall.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<Profile>))]
         [Obsolete("The profile property on the Wall base class is obsolete, check the methods of an inherited class like StandardWall or WallByProfile.")]
         public Profile Profile { get; protected set; }
 
diff --git a/Elements/src/WallByProfile.cs b/Elements/src/WallByProfile.cs
index 8f54d8244..70ddd1747 100644
--- a/Elements/src/WallByProfile.cs
+++ b/Elements/src/WallByProfile.cs
@@ -4,14 +4,12 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using System.Text.Json.Serialization;
-using Elements.Serialization.JSON;
 
 namespace Elements
 {
     /// <summary>
     /// A wall drawn using the elevation profile
     /// </summary>
-    [JsonConverter(typeof(ElementConverter<WallByProfile>))]
     public class WallByProfile : Wall
     {
         /// <summary>The overall thickness of the Wall</summary>
diff --git a/Elements/test/Grid2dElement.cs b/Elements/test/Grid2dElement.cs
index ad004fd49..d8d5a5d46 100644
--- a/Elements/test/Grid2dElement.cs
+++ b/Elements/test/Grid2dElement.cs
@@ -1,11 +1,9 @@
-using Elements.Serialization.JSON;
 using Elements.Spatial;
 using System.Text.Json.Serialization;
 
 namespace Elements
 {
     /// <summary>Just a test</summary>
-    [JsonConverter(typeof(ElementConverter<Grid2dElement>))]
     public partial class Grid2dElement : Element
     {
         /// <summary>contains a grid</summary>
diff --git a/Elements/test/MeshTests.cs b/Elements/test/MeshTests.cs
index 873df21c8..e50823214 100644
--- a/Elements/test/MeshTests.cs
+++ b/Elements/test/MeshTests.cs
@@ -4,6 +4,7 @@
 using Elements.Serialization.JSON;
 using System.Text.Json.Serialization;
 using Xunit;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -34,6 +35,7 @@ public void Volume()
             var a1 = l1.Area();
             Assert.Equal((l.Area() + l1.Area()) * 5, l1Mesh.Volume(), 5);
         }
+
         [Fact]
         public void ReadMeshSerializedAsNull()
         {
@@ -42,18 +44,24 @@ public void ReadMeshSerializedAsNull()
   ""Mesh"": null,
 }
             ";
-            Newtonsoft.Json.JsonConvert.DeserializeObject<InputsWithMesh>(json, new[] { new MeshConverter() });
+            var options = new JsonSerializerOptions
+            {
+                AllowTrailingCommas = true
+            };
+
+            JsonSerializer.Deserialize<InputsWithMesh>(json, options);
         }
 
         public class InputsWithMesh
         {
             [JsonConstructor]
-            public InputsWithMesh(Mesh @mesh, string bucketName, string uploadsBucket, Dictionary<string, string> modelInputKeys, string gltfKey, string elementsKey, string ifcKey)
+            public InputsWithMesh(Mesh @mesh)
             {
                 this.Mesh = @mesh;
             }
 
             [JsonPropertyName("Mesh")]
+            [JsonConverter(typeof(MeshConverter))]
             public Mesh Mesh { get; set; }
         }
     }
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index ae451ce70..21d997dc2 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -5,13 +5,11 @@
 using Elements.Serialization.glTF;
 using System.Collections.Generic;
 using Elements.Generate;
-using System.Text.Json.Serialization;
 using Elements.Geometry.Solids;
 using System.Linq;
 using Xunit.Abstractions;
 using Newtonsoft.Json.Linq;
 using System.Threading.Tasks;
-using Elements.Geometry.Profiles;
 using System.Text.Json;
 
 namespace Elements.Tests
@@ -72,17 +70,12 @@ public void HasOriginAfterSerialization()
         public void SkipsUnknownTypesDuringDeserialization()
         {
             // We've changed an Elements.Beam to Elements.Foo
-            var modelStr = "{'Transform':{'Matrix':{'Components':[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},'Elements':{'c6d1dc68-f800-47c1-9190-745b525ad569':{'discriminator':'Elements.Baz'}, '37f161d6-a892-4588-ad65-457b04b97236':{'discriminator':'Elements.Geometry.Profiles.WideFlangeProfile','d':1.1176,'tw':0.025908,'bf':0.4064,'tf':0.044958,'Perimeter':{'discriminator':'Elements.Geometry.Polygon','Vertices':[{'X':-0.2032,'Y':0.5588,'Z':0.0},{'X':-0.2032,'Y':0.51384199999999991,'Z':0.0},{'X':-0.012954,'Y':0.51384199999999991,'Z':0.0},{'X':-0.012954,'Y':-0.51384199999999991,'Z':0.0},{'X':-0.2032,'Y':-0.51384199999999991,'Z':0.0},{'X':-0.2032,'Y':-0.5588,'Z':0.0},{'X':0.2032,'Y':-0.5588,'Z':0.0},{'X':0.2032,'Y':-0.51384199999999991,'Z':0.0},{'X':0.012954,'Y':-0.51384199999999991,'Z':0.0},{'X':0.012954,'Y':0.51384199999999991,'Z':0.0},{'X':0.2032,'Y':0.51384199999999991,'Z':0.0},{'X':0.2032,'Y':0.5588,'Z':0.0}]},'Voids':null,'Id':'37f161d6-a892-4588-ad65-457b04b97236','Name':'W44x335'},'6b77d69a-204e-40f9-bc1f-ed84683e64c6':{'discriminator':'Elements.Material','Color':{'Red':0.60000002384185791,'Green':0.5,'Blue':0.5,'Alpha':1.0},'SpecularFactor':0.0,'GlossinessFactor':0.0,'Id':'6b77d69a-204e-40f9-bc1f-ed84683e64c6','Name':'steel'},'fd35bd2c-0108-47df-8e6d-42cc43e4eed0':{'discriminator':'Elements.Foo','Curve':{'discriminator':'Elements.Geometry.Arc','Center':{'X':0.0,'Y':0.0,'Z':0.0},'Radius':2.0,'StartAngle':0.0,'EndAngle':90.0},'StartSetback':0.25,'EndSetback':0.25,'Profile':'37f161d6-a892-4588-ad65-457b04b97236','Transform':{'Matrix':{'Components':[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},'Material':'6b77d69a-204e-40f9-bc1f-ed84683e64c6','Representation':{'SolidOperations':[{'discriminator':'Elements.Geometry.Solids.Sweep','Profile':'37f161d6-a892-4588-ad65-457b04b97236','Curve':{'discriminator':'Elements.Geometry.Arc','Center':{'X':0.0,'Y':0.0,'Z':0.0},'Radius':2.0,'StartAngle':0.0,'EndAngle':90.0},'StartSetback':0.25,'EndSetback':0.25,'Rotation':0.0,'IsVoid':false}]},'Id':'fd35bd2c-0108-47df-8e6d-42cc43e4eed0','Name':null}}}";
-            var model = Model.FromJson(modelStr, out var errors);
-            foreach (var e in errors)
-            {
-                this._output.WriteLine(e);
-            }
+            var modelStr = "{\"Transform\":{\"Matrix\":{\"Components\":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},\"Elements\":{\"c6d1dc68-f800-47c1-9190-745b525ad569\":{\"discriminator\":\"Elements.Baz\"}, \"37f161d6-a892-4588-ad65-457b04b97236\":{\"discriminator\":\"Elements.Geometry.Profiles.WideFlangeProfile\",\"d\":1.1176,\"tw\":0.025908,\"bf\":0.4064,\"tf\":0.044958,\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-0.2032,\"Y\":0.5588,\"Z\":0.0},{\"X\":-0.2032,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":-0.012954,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":-0.012954,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":-0.2032,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":-0.2032,\"Y\":-0.5588,\"Z\":0.0},{\"X\":0.2032,\"Y\":-0.5588,\"Z\":0.0},{\"X\":0.2032,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":0.012954,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":0.012954,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":0.2032,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":0.2032,\"Y\":0.5588,\"Z\":0.0}]},\"Voids\":null,\"Id\":\"37f161d6-a892-4588-ad65-457b04b97236\",\"Name\":\"W44x335\"},\"6b77d69a-204e-40f9-bc1f-ed84683e64c6\":{\"discriminator\":\"Elements.Material\",\"Color\":{\"Red\":0.60000002384185791,\"Green\":0.5,\"Blue\":0.5,\"Alpha\":1.0},\"SpecularFactor\":0.0,\"GlossinessFactor\":0.0,\"Id\":\"6b77d69a-204e-40f9-bc1f-ed84683e64c6\",\"Name\":\"steel\"},\"fd35bd2c-0108-47df-8e6d-42cc43e4eed0\":{\"discriminator\":\"Elements.Foo\",\"Curve\":{\"discriminator\":\"Elements.Geometry.Arc\",\"Center\":{\"X\":0.0,\"Y\":0.0,\"Z\":0.0},\"Radius\":2.0,\"StartAngle\":0.0,\"EndAngle\":90.0},\"StartSetback\":0.25,\"EndSetback\":0.25,\"Profile\":\"37f161d6-a892-4588-ad65-457b04b97236\",\"Transform\":{\"Matrix\":{\"Components\":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},\"Material\":\"6b77d69a-204e-40f9-bc1f-ed84683e64c6\",\"Representation\":{\"SolidOperations\":[{\"discriminator\":\"Elements.Geometry.Solids.Sweep\",\"Profile\":\"37f161d6-a892-4588-ad65-457b04b97236\",\"Curve\":{\"discriminator\":\"Elements.Geometry.Arc\",\"Center\":{\"X\":0.0,\"Y\":0.0,\"Z\":0.0},\"Radius\":2.0,\"StartAngle\":0.0,\"EndAngle\":90.0},\"StartSetback\":0.25,\"EndSetback\":0.25,\"Rotation\":0.0,\"IsVoid\":false}]},\"Id\":\"fd35bd2c-0108-47df-8e6d-42cc43e4eed0\",\"Name\":null}}}";
+            var model = Model.FromJson(modelStr);
 
             // We expect three geometric elements,
             // but the baz will not deserialize.
             Assert.Equal(3, model.Elements.Count);
-            Assert.Equal(2, errors.Count);
         }
 
         /// <summary>
@@ -220,7 +213,7 @@ public void DeserializationConstructsWithMissingProperties()
 
             // Remove the Location property
             c.Property("Location").Remove();
-            var newModel = Model.FromJson(obj.ToString(), out var errors);
+            var newModel = Model.FromJson(obj.ToString());
             var newColumn = newModel.AllElementsOfType<Column>().First();
             Assert.Equal(Vector3.Origin, newColumn.Location);
         }
@@ -232,18 +225,15 @@ public void DeserializationSkipsNullProperties()
             var model = new Model();
             model.AddElement(column);
             var json = model.ToJson(true);
+
             // https://www.newtonsoft.com/json/help/html/ModifyJson.htm
             var obj = JObject.Parse(json);
             var elements = obj["Elements"];
             var c = (JObject)elements.Values().ElementAt(2); // the column
-
             // Nullify a property.
             c.Property("Location").Value = null;
-            var newModel = Model.FromJson(obj.ToString(), out var errors);
-            foreach (var e in errors)
-            {
-                this._output.WriteLine(e);
-            }
+
+            var newModel = Model.FromJson(obj.ToString());
             Assert.Empty(newModel.AllElementsOfType<Column>());
         }
 
@@ -355,30 +345,6 @@ public void HandlesAllDocumentedSubElements()
             Assert.False(Model.IsValidForRecursiveAddition(typeof(object)));
         }
 
-        [Fact]
-        public void SerializesNew()
-        {
-            var model = QuadPanelModel();
-            var json = model.ToJsonNew();
-            _output.WriteLine(json);
-            var newModel = Model.FromJsonNew(json);
-        }
-
-        [Fact]
-        public void SerializesOneBeamNew()
-        {
-            var profiles = new WideFlangeProfileFactory();
-            var w = profiles.GetProfileByType(WideFlangeProfileType.W44x335);
-
-            var line = new Line(Vector3.Origin, new Vector3(5, 5));
-            var beam = new Beam(line, w);
-            var model = new Model();
-            model.AddElement(beam);
-            var json = model.ToJsonNew();
-            _output.WriteLine(json);
-            var newModel = Model.FromJsonNew(json);
-        }
-
         [Fact]
         public void AllElementsAssignableFromType()
         {
diff --git a/Elements/test/StructuralFramingTests.cs b/Elements/test/StructuralFramingTests.cs
index 7a1a12746..5a13b644e 100644
--- a/Elements/test/StructuralFramingTests.cs
+++ b/Elements/test/StructuralFramingTests.cs
@@ -61,10 +61,6 @@ public void BeamExample()
             this.Model.AddElements(polyT);
             this.Model.AddElement(arcBeam);
             this.Model.AddElements(arcT);
-
-            var json = this.Model.ToJsonNew();
-            _output.WriteLine(json);
-            var newModel = Model.FromJsonNew(json);
         }
 
         [Theory]
diff --git a/Elements/test/UserElementTests.cs b/Elements/test/UserElementTests.cs
index e1e568d08..aec67b07a 100644
--- a/Elements/test/UserElementTests.cs
+++ b/Elements/test/UserElementTests.cs
@@ -81,8 +81,8 @@ public void CreateCustomElement()
             this.Model.AddElement(ue);
 
             var json = this.Model.ToJson();
-            var newModel = Model.FromJson(json, out var errors);
-            Assert.Empty(errors);
+            var newModel = Model.FromJson(json);
+
             var newUe = newModel.AllElementsOfType<TestUserElement>().First();
 
             // Plus one because of the profile that will be added from

From 27afc0f15e255f2d3bb99030cd70c85be2db8db1 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Apr 2022 00:29:36 -0700
Subject: [PATCH 034/150] Update the bridge API.

---
 Elements.Wasm/ElementsAPI.cs | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Elements.Wasm/ElementsAPI.cs b/Elements.Wasm/ElementsAPI.cs
index 25e71c6e9..650cc2bc0 100644
--- a/Elements.Wasm/ElementsAPI.cs
+++ b/Elements.Wasm/ElementsAPI.cs
@@ -14,7 +14,7 @@ public static class ElementsAPI
     [JSInvokable]
     public static Task<Model> ModelFromJson(string json)
     {
-        return Task.FromResult(Model.FromJsonNew(json));
+        return Task.FromResult(Model.FromJson(json));
     }
 
     [JSInvokable]
@@ -22,7 +22,7 @@ public static Task<string> ModelToGlbBase64(string json)
     {
         Validator.DisableValidationOnConstruction = true;
 
-        var model = Model.FromJsonNew(json);
+        var model = Model.FromJson(json);
         return Task.FromResult(model.ToBase64String());
     }
 
@@ -52,11 +52,11 @@ public static Task<TestResult> Test()
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating test beams.");
         sw.Restart();
 
-        var json = model.ToJsonNew();
+        var json = model.ToJson();
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for serializing model.");
         sw.Restart();
 
-        var newModel = Model.FromJsonNew(json);
+        var newModel = Model.FromJson(json);
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for deserializing model.");
         sw.Restart();
 
@@ -82,7 +82,7 @@ public static Task<byte[]> ModelToGlbBytes(string json)
 
         var sw = new Stopwatch();
         sw.Start();
-        var model = Model.FromJsonNew(json);
+        var model = Model.FromJson(json);
         Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the model from json.");
         sw.Restart();
         var result = Task.FromResult(model.ToGlTF());

From c27f54f45fe953e8a40f8ebc715e4a67b27dcc14 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Apr 2022 00:55:27 -0700
Subject: [PATCH 035/150] Update the readme with publish instructions.

---
 Elements.Wasm/README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Elements.Wasm/README.md b/Elements.Wasm/README.md
index dd0d6e169..61ecbbbc3 100644
--- a/Elements.Wasm/README.md
+++ b/Elements.Wasm/README.md
@@ -5,7 +5,11 @@ This is a minimal web assembly project.
 `dotnet watch run`
 
 ### Publish
-`dotnet publish -c release`
+```
+dotnet publish -c release
+cd bin/release/net6.0/publish/wwwroot
+python3 -m http.server
+```
 
 ### Files
 `Elements.js`

From 5d63c31876bbd966d36547a4d1da6e546685a878 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Apr 2022 01:43:37 -0700
Subject: [PATCH 036/150] Set publish to AOT compile.

---
 Elements.Wasm/Elements.Wasm.csproj | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Elements.Wasm/Elements.Wasm.csproj b/Elements.Wasm/Elements.Wasm.csproj
index 3d87e5ee5..6a0fcb715 100644
--- a/Elements.Wasm/Elements.Wasm.csproj
+++ b/Elements.Wasm/Elements.Wasm.csproj
@@ -5,6 +5,7 @@
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
+    <RunAOTCompilation>true</RunAOTCompilation>
   </PropertyGroup>
 
   <ItemGroup>

From ae23c60d4ac611a845944aef35ddba896c7b0883 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Apr 2022 09:06:29 -0700
Subject: [PATCH 037/150] Expose serialization constructor on topography to fix
 all topo tests.

---
 Elements/src/Topography.cs | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/Elements/src/Topography.cs b/Elements/src/Topography.cs
index 37f7a1042..41888632a 100644
--- a/Elements/src/Topography.cs
+++ b/Elements/src/Topography.cs
@@ -131,8 +131,22 @@ public Topography(Vector3 origin,
             RegisterPropertyChangeHandlers();
         }
 
+        /// <summary>
+        /// Create a topography.
+        /// </summary>
+        /// <param name="mesh">A mesh representing the topography.</param>
+        /// <param name="elevations">An array of elevation samples which will be converted to a square array of width.</param>
+        /// <param name="origin">The origin of the topography.</param>
+        /// <param name="rowWidth">The number of cells 'across' the topography.</param>
+        /// <param name="cellWidth">The distance between two elevation samples along a row.</param>
+        /// <param name="cellHeight">The distance between two elevation samples along a column.</param>
+        /// <param name="material">The topography's material.</param>
+        /// <param name="transform">The topography's transform.</param>
+        /// <param name="id">The topography's id.</param>
+        /// <param name="name">The topography's name.</param>
+        /// <returns></returns>
         [JsonConstructor]
-        internal Topography(Mesh mesh,
+        public Topography(Mesh mesh,
                             double[] elevations,
                             Vector3 origin,
                             int rowWidth,

From e6b88641f0f0e2bab29fa4944c43897f2e2290a5 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 19 Apr 2022 10:00:27 -0700
Subject: [PATCH 038/150] Fixing joists.

---
 Elements/src/Joist.cs                             | 4 ++++
 Elements/src/Serialization/JSON/ModelConverter.cs | 3 ++-
 Elements/src/StructuralFraming.cs                 | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Elements/src/Joist.cs b/Elements/src/Joist.cs
index 8bd61e9b7..59830b64e 100644
--- a/Elements/src/Joist.cs
+++ b/Elements/src/Joist.cs
@@ -7,6 +7,7 @@
 using Elements.Geometry.Solids;
 using Elements.Spatial;
 using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -26,16 +27,19 @@ public class Joist : StructuralFraming
         /// <summary>
         /// Profile of the top chord of the joist.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<LProfile>))]
         public LProfile TopChordProfile { get; set; }
 
         /// <summary>
         /// Profile of the bottom chord of the joist.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<LProfile>))]
         public LProfile BottomChordProfile { get; set; }
 
         /// <summary>
         /// Profile of the web of the joist.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<LProfile>))]
         public LProfile WebProfile { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Serialization/JSON/ModelConverter.cs b/Elements/src/Serialization/JSON/ModelConverter.cs
index b6c127f8a..bed2b3858 100644
--- a/Elements/src/Serialization/JSON/ModelConverter.cs
+++ b/Elements/src/Serialization/JSON/ModelConverter.cs
@@ -32,8 +32,9 @@ public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
                             elements.Add(id, e);
                         }
                     }
-                    catch
+                    catch (Exception ex)
                     {
+                        Console.WriteLine(ex.Message);
                         continue;
                     }
                 }
diff --git a/Elements/src/StructuralFraming.cs b/Elements/src/StructuralFraming.cs
index 45d7a48f0..1ff804eea 100644
--- a/Elements/src/StructuralFraming.cs
+++ b/Elements/src/StructuralFraming.cs
@@ -15,6 +15,7 @@ public abstract class StructuralFraming : GeometricElement
         /// <summary>
         /// The center line of the framing element.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<Curve>))]
         public Curve Curve { get; set; }
 
         /// <summary>

From 6b0110601fb6e8d45608b7df795a6ac16f12d094 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 14:15:32 -0700
Subject: [PATCH 039/150] Finish fixing joists, and start adding parameterless
 constructors.

---
 Elements/src/ElementInstance.cs   |  6 +++++-
 Elements/src/Joist.cs             |  9 ++++++++-
 Elements/src/StructuralFraming.cs | 10 +++++++++-
 3 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/Elements/src/ElementInstance.cs b/Elements/src/ElementInstance.cs
index c1b4dbaca..d800f518c 100644
--- a/Elements/src/ElementInstance.cs
+++ b/Elements/src/ElementInstance.cs
@@ -1,6 +1,7 @@
 using System;
 using Elements.Geometry;
 using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -17,6 +18,7 @@ public class ElementInstance : Element
         /// <summary>
         /// The element from which this instance is derived.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<GeometricElement>))]
         public GeometricElement BaseDefinition { get; }
 
         /// <summary>
@@ -26,13 +28,15 @@ public class ElementInstance : Element
 
         /// <summary>
         /// Construct an element instance.
+        /// This constructor is only for JSON serialization. You should use
+        /// someElement.CreateInstance(...) to create element instances.
         /// </summary>
         /// <param name="baseDefinition">The definition from which this instance is derived.</param>
         /// <param name="transform">The transform of the instance.</param>
         /// <param name="name">The name of the instance.</param>
         /// <param name="id">The id of the instance.</param>
         [JsonConstructor]
-        internal ElementInstance(GeometricElement baseDefinition,
+        public ElementInstance(GeometricElement baseDefinition,
                                Transform transform,
                                string name = null,
                                Guid id = default(Guid)) : base(id == default(Guid) ? Guid.NewGuid() : id, name)
diff --git a/Elements/src/Joist.cs b/Elements/src/Joist.cs
index 59830b64e..d65c9c101 100644
--- a/Elements/src/Joist.cs
+++ b/Elements/src/Joist.cs
@@ -62,6 +62,12 @@ public class Joist : StructuralFraming
         /// </summary>
         public List<Vector3> JoistPoints { get; set; } = new List<Vector3>();
 
+        [JsonConstructor]
+        public Joist() : base()
+        {
+            // Empty construction for JSON serialization.
+        }
+
         /// <summary>
         /// Construct a new BarJoist.
         /// </summary>
@@ -76,7 +82,6 @@ public class Joist : StructuralFraming
         /// <param name="cellCount">The cell count of the joist.</param>
         /// <param name="seatDepth">The seat depth of the joist.</param>
         /// <param name="distanceToFirstPanel">The distance to the first panel of the joist (Y).</param>
-        [JsonConstructor]
         public Joist(Line curve,
                      LProfile topChordProfile,
                      LProfile bottomChordProfile,
@@ -139,6 +144,8 @@ private Representation ConstructRepresentation()
 
             JoistPoints.Clear();
 
+            // TODO: This creates too many profiles. We should reference the
+            // existing profiles but create local transforms for the profiles.
             var ll = Construct2LProfile(TopChordProfile, true);
 
             var topSweepR = new Sweep(ll[0],
diff --git a/Elements/src/StructuralFraming.cs b/Elements/src/StructuralFraming.cs
index 1ff804eea..eafb69d60 100644
--- a/Elements/src/StructuralFraming.cs
+++ b/Elements/src/StructuralFraming.cs
@@ -40,7 +40,15 @@ public abstract class StructuralFraming : GeometricElement
         public double Rotation { get; set; }
 
         /// <summary>
-        /// Construct a beam.
+        /// Construct a structural framing element.
+        /// </summary>
+        public StructuralFraming()
+        {
+            // Empty construction for JSON serialization.
+        }
+
+        /// <summary>
+        /// Construct a structural framing element.
         /// </summary>
         /// <param name="curve">The center line of the beam.</param>
         /// <param name="profile">The structural framing's profile.</param>

From 40bf6d36ea72a9e2aadc7ea9f907e0837cceb4c6 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 21:20:04 -0700
Subject: [PATCH 040/150] Update user element tests to support collections.

---
 .../Serialization/JSON/ElementConverter.cs    | 106 ++++++---
 .../JSON/PropertySerializationExtensions.cs   | 209 +++++++++++-------
 Elements/test/UserElementTests.cs             |  10 +-
 3 files changed, 222 insertions(+), 103 deletions(-)

diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index b3e4bc0ca..c0aec4b19 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -21,6 +21,10 @@ public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializer
         }
     }
 
+    /// <summary>
+    /// Convert elements, lists of elements and dictionaries of elements.
+    /// </summary>
+    /// <typeparam name="T"></typeparam>
     internal class ElementConverter<T> : JsonConverter<T>
     {
         public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
@@ -29,44 +33,92 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
 
             if (reader.TokenType == JsonTokenType.String)
             {
+                // Convert an id reference into an element.
                 var id = reader.GetString();
-                return (T)resolver.ResolveReference(id.ToString());
+                return (T)resolver.ResolveReference(id);
             }
-
-            using (var doc = JsonDocument.ParseValue(ref reader))
+            else
             {
-                var root = doc.RootElement;
-
-                var discriminator = root.GetProperty("discriminator").GetString();
-
-                if (!resolver.TypeCache.TryGetValue(discriminator, out var derivedType))
+                if (PropertySerializationExtensions.IsAcceptedCollectionType(typeToConvert, out var collectionType))
                 {
-                    // The type could not be found. See if it has the hallmarks
-                    // of a geometric element and deserialize it as such if possible.
-                    if (root.TryGetProperty("Representation", out _))
+                    var elements = Activator.CreateInstance(typeToConvert);
+                    var mi = typeToConvert.GetMethod("Add");
+                    switch (collectionType)
                     {
-                        derivedType = typeof(GeometricElement);
-                    }
-                    else
-                    {
-                        return default;
+                        case CollectionType.List:
+                            // At this point we'll be at the start of an array.
+                            reader.Read();
+                            do
+                            {
+                                var id = reader.GetString();
+                                mi.Invoke(elements, new[] { resolver.ResolveReference(id) });
+                                reader.Read();
+                            }
+                            while (reader.TokenType != JsonTokenType.EndArray);
+                            break;
+                        case CollectionType.Dictionary:
+                            var args = typeToConvert.GetGenericArguments();
+                            // At this point we'll be at the start of an object
+                            // This will be a dictionary that looks like id: id
+                            using (var doc = JsonDocument.ParseValue(ref reader))
+                            {
+                                var root = doc.RootElement;
+                                foreach (var prop in root.EnumerateObject())
+                                {
+                                    if (args[0] == typeof(Guid))
+                                    {
+                                        mi.Invoke(elements, new[] { Guid.Parse(prop.Name), resolver.ResolveReference(prop.Value.GetString()) });
+                                    }
+                                    else
+                                    {
+                                        mi.Invoke(elements, new[] { prop.Name, resolver.ResolveReference(prop.Value.GetString()) });
+                                    }
+                                }
+                            }
+                            break;
                     }
+                    return (T)elements;
                 }
+                else
+                {
 
-                // Use the type info to get all properties which are Element
-                // references, and deserialize those first.
+                    using (var doc = JsonDocument.ParseValue(ref reader))
+                    {
+                        // Deserialize an element.
+                        var root = doc.RootElement;
 
-                // TODO: This *should* support serialization of elements in
-                // any order, removing the requirement to do any kind of recursive
-                // sub-element searching. We can remove that code from the model.
-                PropertySerializationExtensions.DeserializeElementProperties(derivedType, root, resolver, resolver.DocumentElements);
+                        var discriminator = root.GetProperty("discriminator").GetString();
 
-                T e = (T)root.Deserialize(derivedType, options);
-                if (typeof(Element).IsAssignableFrom(derivedType))
-                {
-                    resolver.AddReference(((Element)(object)e).Id.ToString(), e);
+                        if (!resolver.TypeCache.TryGetValue(discriminator, out var derivedType))
+                        {
+                            // The type could not be found. See if it has the hallmarks
+                            // of a geometric element and deserialize it as such if possible.
+                            if (root.TryGetProperty("Representation", out _))
+                            {
+                                derivedType = typeof(GeometricElement);
+                            }
+                            else
+                            {
+                                return default;
+                            }
+                        }
+
+                        // Use the type info to get all properties which are Element
+                        // references, and deserialize those first.
+
+                        // TODO: This *should* support serialization of elements in
+                        // any order, removing the requirement to do any kind of recursive
+                        // sub-element searching. We can remove that code from the model.
+                        PropertySerializationExtensions.DeserializeElementProperties(derivedType, root, resolver, resolver.DocumentElements);
+
+                        T e = (T)root.Deserialize(derivedType, options);
+                        if (typeof(Element).IsAssignableFrom(derivedType))
+                        {
+                            resolver.AddReference(((Element)(object)e).Id.ToString(), e);
+                        }
+                        return e;
+                    }
                 }
-                return e;
             }
         }
 
diff --git a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
index e5bf87eda..23cd244fd 100644
--- a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
+++ b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
@@ -7,10 +7,18 @@
 
 namespace Elements.Serialization.JSON
 {
+    internal enum CollectionType
+    {
+        None,
+        List,
+        Dictionary
+    }
+
     internal static class PropertySerializationExtensions
     {
         public static void WriteProperties(this object value, Utf8JsonWriter writer, JsonSerializerOptions options)
         {
+            // Inject the discriminator into the serialized JSON.
             writer.WriteString("discriminator", value.GetDiscriminatorName());
 
             var pinfos = value.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
@@ -23,76 +31,29 @@ public static void WriteProperties(this object value, Utf8JsonWriter writer, Jso
                     continue;
                 }
 
-                // TODO: Use the Newtonsoft version as well.
-                var newtonIgnore = pinfo.GetCustomAttribute<Newtonsoft.Json.JsonIgnoreAttribute>();
-                if (newtonIgnore != null)
-                {
-                    continue;
-                }
-
                 writer.WritePropertyName(pinfo.Name);
                 JsonSerializer.Serialize(writer, pinfo.GetValue(value), pinfo.PropertyType, options);
             }
         }
 
-        private static string GetDiscriminatorName(this object value)
-        {
-            var t = value.GetType();
-            if (t.IsGenericType)
-            {
-                return $"{t.FullName.Split('`').First()}<{string.Join(",", t.GenericTypeArguments.Select(arg => arg.FullName))}>";
-            }
-            else
-            {
-                return t.FullName.Split('`').First();
-            }
-        }
-
-        public static JsonSerializerOptions CopyAndRemoveConverter(this JsonSerializerOptions options, Type converterType)
-        {
-            var copy = new JsonSerializerOptions(options);
-            for (var i = copy.Converters.Count - 1; i >= 0; i--)
-                if (copy.Converters[i].GetType() == converterType)
-                    copy.Converters.RemoveAt(i);
-            return copy;
-        }
-
-        public static Type GetObjectSubtype(Type objectType, string discriminator, Dictionary<string, Type> typeCache)
-        {
-            // Check the type cache.
-            if (discriminator != null && typeCache.ContainsKey(discriminator))
-            {
-                return typeCache[discriminator];
-            }
-
-            // Check for proxy generics.
-            if (discriminator != null && discriminator.StartsWith("Elements.ElementProxy<"))
-            {
-                var typeNames = discriminator.Split('<')[1].Split('>')[0].Split(','); // We do this split because in theory we can serialize with multiple generics
-                var typeName = typeNames.FirstOrDefault();
-                var generic = typeCache[typeName];
-                var proxy = typeof(ElementProxy<>).MakeGenericType(generic);
-                return proxy;
-            }
-
-            // If it's not in the type cache see if it's got a representation.
-            // Import it as a GeometricElement.
-            // if (jObject.TryGetValue("Representation", out _))
-            // {
-            //     return typeof(GeometricElement);
-            // }
-
-            // The default behavior for this converter, as provided by nJSONSchema
-            // is to return the base objectType if a derived type can't be found.
-            return objectType;
-        }
-
         public static void DeserializeElementProperties(Type derivedType,
                                                    JsonElement root,
                                                    ReferenceResolver resolver,
                                                    JsonElement documentElements)
         {
-            var elementProperties = derivedType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => typeof(Element).IsAssignableFrom(p.PropertyType));
+            var elementReferenceResolver = resolver as ElementReferenceResolver;
+
+            var elementProperties = derivedType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p =>
+            {
+                // Properties which are elements.
+                if (typeof(Element).IsAssignableFrom(p.PropertyType))
+                {
+                    return true;
+                };
+
+                return IsAcceptedCollectionType(p.PropertyType, out _);
+            });
+
             foreach (var elementProperty in elementProperties)
             {
                 var prop = root.GetProperty(elementProperty.Name);
@@ -100,33 +61,131 @@ public static void DeserializeElementProperties(Type derivedType,
                 {
                     // You'll get here when you've got a null reference to an element. 
                     // Resolve to an empty id, causing the resolver to return null.
-                    resolver.ResolveReference(string.Empty);
+                    elementReferenceResolver.ResolveReference(string.Empty);
                     continue;
                 }
-
-                if (prop.TryGetGuid(out var referencedId))
+                else if (prop.ValueKind == JsonValueKind.Array)
                 {
-                    if (resolver.ResolveReference(referencedId.ToString()) != null)
+                    foreach (var value in prop.EnumerateArray())
                     {
-                        continue;
+                        if (value.TryGetGuid(out var referenceId))
+                        {
+                            if (documentElements.TryGetProperty(referenceId.ToString(), out var foundElement))
+                            {
+                                if (foundElement.TryGetProperty("discriminator", out var discriminatorProp))
+                                {
+                                    if (elementReferenceResolver.TypeCache.TryGetValue(discriminatorProp.GetString(), out var discriminatorValue))
+                                    {
+                                        HandleReferenceId(value, referenceId, resolver, documentElements, discriminatorValue);
+                                    }
+                                }
+                            }
+                        }
+                        else
+                        {
+                            // The array element is not an element.
+                            // Just deserialize it.
+                        }
                     }
-
-                    if (documentElements.TryGetProperty(referencedId.ToString(), out var propertyBody))
+                    continue;
+                }
+                else if (prop.ValueKind == JsonValueKind.Object)
+                {
+                    foreach (var innerProp in prop.EnumerateObject())
                     {
-                        if (propertyBody.TryGetProperty("discriminator", out var elementBody))
+                        if (innerProp.Value.TryGetGuid(out var referenceId))
                         {
-                            var referencedElement = (Element)prop.Deserialize(elementProperty.PropertyType);
-                            resolver.AddReference(referencedId.ToString(), referencedElement);
+                            if (documentElements.TryGetProperty(referenceId.ToString(), out var foundElement))
+                            {
+                                if (foundElement.TryGetProperty("discriminator", out var discriminatorProp))
+                                {
+                                    if (elementReferenceResolver.TypeCache.TryGetValue(discriminatorProp.GetString(), out var discriminatorValue))
+                                    {
+                                        HandleReferenceId(innerProp.Value, referenceId, resolver, documentElements, discriminatorValue);
+                                    }
+                                }
+                            }
                         }
                     }
-                    else
+                    continue;
+                }
+
+                if (prop.TryGetGuid(out var referencedId))
+                {
+                    HandleReferenceId(prop, referencedId, resolver, documentElements, elementProperty.PropertyType);
+                }
+            }
+        }
+
+
+        internal static bool IsAcceptedCollectionType(Type propertyType, out CollectionType collectionType)
+        {
+            if (propertyType.IsGenericType)
+            {
+                var def = propertyType.GetGenericTypeDefinition();
+                var args = propertyType.GetGenericArguments();
+
+                // Properties which are List<Element>
+                if (def == typeof(List<>))
+                {
+                    if (typeof(Element).IsAssignableFrom(args[0]))
                     {
-                        // The reference cannot be found. It's either not 
-                        // a direct reference, as in the case of a cross-model
-                        // reference, or it's just broken.
-                        resolver.AddReference(referencedId.ToString(), null);
+                        collectionType = CollectionType.List;
+                        return true;
                     }
                 }
+                // Properties which are Dictionary<Guid, Element> or Dictionary<string, Element>
+                else if (def == typeof(Dictionary<,>))
+                {
+                    if ((args[0] == typeof(Guid) || args[0] == typeof(string)) && typeof(Element).IsAssignableFrom(args[1]))
+                    {
+                        collectionType = CollectionType.Dictionary;
+                        return true;
+                    }
+                }
+            }
+            collectionType = CollectionType.None;
+            return false;
+        }
+
+        private static void HandleReferenceId(JsonElement elementToDeserialize,
+                                              Guid referencedId,
+                                              ReferenceResolver resolver,
+                                              JsonElement documentElements,
+                                              Type propertyType)
+        {
+            if (resolver.ResolveReference(referencedId.ToString()) != null)
+            {
+                return;
+            }
+
+            if (documentElements.TryGetProperty(referencedId.ToString(), out var propertyBody))
+            {
+                if (propertyBody.TryGetProperty("discriminator", out _))
+                {
+                    var referencedElement = (Element)elementToDeserialize.Deserialize(propertyType);
+                    resolver.AddReference(referencedId.ToString(), referencedElement);
+                }
+            }
+            else
+            {
+                // The reference cannot be found. It's either not 
+                // a direct reference, as in the case of a cross-model
+                // reference, or it's just broken.
+                resolver.AddReference(referencedId.ToString(), null);
+            }
+        }
+
+        private static string GetDiscriminatorName(this object value)
+        {
+            var t = value.GetType();
+            if (t.IsGenericType)
+            {
+                return $"{t.FullName.Split('`').First()}<{string.Join(",", t.GenericTypeArguments.Select(arg => arg.FullName))}>";
+            }
+            else
+            {
+                return t.FullName.Split('`').First();
             }
         }
     }
diff --git a/Elements/test/UserElementTests.cs b/Elements/test/UserElementTests.cs
index aec67b07a..84514d3c0 100644
--- a/Elements/test/UserElementTests.cs
+++ b/Elements/test/UserElementTests.cs
@@ -1,8 +1,10 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
+using Elements.Serialization.JSON;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 using Xunit;
 
 namespace Elements.Tests
@@ -12,12 +14,15 @@ public class TestUserElement : GeometricElement
         public Line CenterLine { get; set; }
 
         // Used to test serialization of top level elements.
+        [JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile { get; set; }
 
         // Used to test serialization of lists of sub elements.
+        [JsonConverter(typeof(ElementConverter<List<Mass>>))]
         public List<Mass> SubElements { get; set; }
 
         // Used to test dictionaries of sub elements.
+        [JsonConverter(typeof(ElementConverter<Dictionary<string, Element>>))]
         public Dictionary<string, Element> DictionaryElements { get; set; }
 
         internal TestUserElement() : base(null,
@@ -74,9 +79,10 @@ public void CreateCustomElement()
             var m = new Material("UserElementGreen", Colors.Green);
             var ue = new TestUserElement(line, new Profile(Polygon.L(1, 2, 0.5)), m);
 
-            var p = new Profile(Polygon.Rectangle(1, 1));
+            var p = new Profile(Polygon.Rectangle(2, 2));
             var m1 = new Mass(p, 1, BuiltInMaterials.Wood);
             ue.SubElements.Add(m1);
+            ue.DictionaryElements.Add("foo", m1);
 
             this.Model.AddElement(ue);
 
@@ -92,6 +98,8 @@ public void CreateCustomElement()
             Assert.Equal(ue.Representation.SolidOperations.Count, newUe.Representation.SolidOperations.Count);
             Assert.Equal(ue.Id, newUe.Id);
             Assert.Equal(ue.Transform, newUe.Transform);
+            Assert.Equal(ue.SubElements[0].Id, newUe.SubElements[0].Id);
+            Assert.Equal(ue.DictionaryElements["foo"].Id, newUe.DictionaryElements["foo"].Id);
 
             // Three profiles.
             // 1. The user element

From 3152fd9cff0bb59472c15e8a09219fec9b373dc1 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 22:35:56 -0700
Subject: [PATCH 041/150] Move elementwise serialization into the converter.

---
 .../src/Serialization/JSON/ElementConverter.cs | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index c0aec4b19..a9f93ac38 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -6,6 +6,18 @@ namespace Elements.Serialization.JSON
 {
     internal class ElementConverterFactory : JsonConverterFactory
     {
+        private readonly bool _elementwiseSerialization;
+
+        /// <summary>
+        /// Should the elements be serialized completely? If this option is false,
+        /// elements will be serialized to ids.
+        /// </summary>
+        /// <param name="elementwiseSerialization"></param>
+        public ElementConverterFactory(bool elementwiseSerialization = false)
+        {
+            _elementwiseSerialization = elementwiseSerialization;
+        }
+
         public override bool CanConvert(Type typeToConvert)
         {
             return typeof(Element).IsAssignableFrom(typeToConvert);
@@ -17,6 +29,8 @@ public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializer
             var typeArgs = new[] { typeToConvert };
             var converterType = elementConverter.MakeGenericType(typeArgs);
             var converter = Activator.CreateInstance(converterType) as JsonConverter;
+            var pi = converterType.GetProperty("ElementwiseSerialization");
+            pi.SetValue(converter, _elementwiseSerialization);
             return converter;
         }
     }
@@ -27,6 +41,8 @@ public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializer
     /// <typeparam name="T"></typeparam>
     internal class ElementConverter<T> : JsonConverter<T>
     {
+        public bool ElementwiseSerialization { get; internal set; } = false;
+
         public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
             var resolver = options.ReferenceHandler.CreateResolver() as ElementReferenceResolver;
@@ -125,7 +141,7 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
         public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options)
         {
             var isElement = typeof(Element).IsAssignableFrom(value.GetType());
-            if (writer.CurrentDepth > 2 && isElement)
+            if (writer.CurrentDepth > 2 && isElement && !ElementwiseSerialization)
             {
                 writer.WriteStringValue(((Element)(object)value).Id.ToString());
             }

From 92ba6d7893529cf4940e7d2c0b5b625ad2bb283e Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 22:36:52 -0700
Subject: [PATCH 042/150] Fix bbox tests.

---
 Elements/test/BBox3Tests.cs | 29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

diff --git a/Elements/test/BBox3Tests.cs b/Elements/test/BBox3Tests.cs
index baf073bc3..71ac69aac 100644
--- a/Elements/test/BBox3Tests.cs
+++ b/Elements/test/BBox3Tests.cs
@@ -3,10 +3,8 @@
 using System.Linq;
 using System.Text.Json;
 using Elements.Geometry;
-using Elements.Geometry.Profiles;
-using Elements.Geometry.Solids;
-using System.Text.Json.Serialization;
 using Xunit;
+using Elements.Serialization.JSON;
 
 namespace Elements.Tests
 {
@@ -72,10 +70,11 @@ public void BBoxesForElements()
         {
             Name = nameof(BBoxesForElements);
 
-            var elements = new List<Element>();
-
-            // mass with weird transform
-            elements.Add(new Mass(Polygon.Star(5, 3, 5), 1, null, new Transform(new Vector3(4, 3, 2), new Vector3(1, 1, 1))));
+            var elements = new List<Element>
+            {
+                // mass with weird transform
+                new Mass(Polygon.Star(5, 3, 5), 1, null, new Transform(new Vector3(4, 3, 2), new Vector3(1, 1, 1)))
+            };
 
             // element instances
             var contentJson = @"
@@ -145,7 +144,21 @@ public void BBoxesForElements()
             ""Opaque"": 1
         }";
 
-            var contentElement = JsonSerializer.Deserialize<ContentElement>(contentJson);
+            ContentElement contentElement;
+            using (var doc = JsonDocument.Parse(contentJson))
+            {
+                var root = doc.RootElement;
+                var options = new JsonSerializerOptions()
+                {
+                    PropertyNameCaseInsensitive = true,
+                };
+                var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
+                var refHandler = new ElementReferenceHandler(typeCache, root);
+                options.ReferenceHandler = refHandler;
+
+                contentElement = JsonSerializer.Deserialize<ContentElement>(contentJson, options);
+            }
+
             elements.Add(contentElement.CreateInstance(new Transform(-6, 0, 0), null));
             elements.Add(contentElement.CreateInstance(new Transform(new Vector3(-8, 0, 0), 45), null));
 

From 3d5c67542b2b573a6c668f7601f482b606162dc0 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 22:55:01 -0700
Subject: [PATCH 043/150] Point to System.Text.Json's version of extension
 data.

---
 Elements/src/Element.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index d5699ab97..a84f6ade6 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -66,7 +66,7 @@ public string Name
         /// <summary>
         /// A collection of additional properties.
         /// </summary>
-        [Newtonsoft.Json.JsonExtensionData]
+        [JsonExtensionData]
         public System.Collections.Generic.IDictionary<string, object> AdditionalProperties
         {
             get { return _additionalProperties; }

From 59620e9411c973ea61a392cf907bec6d8d7e0837 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 23:16:28 -0700
Subject: [PATCH 044/150] Fix content elements.

---
 Elements/src/ContentCatalog.cs                | 36 ++++++----
 Elements/src/ContentElement.cs                |  2 -
 Elements/src/Element.cs                       |  3 +-
 .../JSON/AdditionalPropertiesConverter.cs     | 69 +++++++++++++++++++
 Elements/test/ContentTests.cs                 |  1 -
 5 files changed, 93 insertions(+), 18 deletions(-)
 create mode 100644 Elements/src/Serialization/JSON/AdditionalPropertiesConverter.cs

diff --git a/Elements/src/ContentCatalog.cs b/Elements/src/ContentCatalog.cs
index 8161bbdd8..53ae266a5 100644
--- a/Elements/src/ContentCatalog.cs
+++ b/Elements/src/ContentCatalog.cs
@@ -2,7 +2,7 @@
 using System.Linq;
 using Elements.Serialization.JSON;
 using System.Text.Json.Serialization;
-using Newtonsoft.Json.Linq;
+using System.Text.Json;
 
 namespace Elements
 {
@@ -40,10 +40,9 @@ public ContentCatalog(IList<ContentElement> @content, IList<Element> @referenceC
         /// </summary>
         public string ToJson()
         {
-            JsonInheritanceConverter.ElementwiseSerialization = true;
-            var json = Newtonsoft.Json.JsonConvert.SerializeObject(this);
-            JsonInheritanceConverter.ElementwiseSerialization = false;
-            return json;
+            var serializerOptions = new JsonSerializerOptions();
+            serializerOptions.Converters.Add(new ElementConverterFactory(true));
+            return JsonSerializer.Serialize(this, serializerOptions);
         }
 
         /// <summary>
@@ -52,17 +51,26 @@ public string ToJson()
         /// <param name="json"></param>
         public static ContentCatalog FromJson(string json)
         {
-            var catalogObject = Newtonsoft.Json.JsonConvert.DeserializeObject<JObject>(json);
-            if (catalogObject.TryGetValue("discriminator", out _))
+            using (var doc = JsonDocument.Parse(json))
             {
-                return catalogObject.ToObject<ContentCatalog>();
-            }
-            else if (catalogObject.TryGetValue("Elements", out _) && catalogObject.TryGetValue("Transform", out _)) // catalog is stored in a model
-            {
-                var model = Model.FromJson(json);
-                return model.AllElementsOfType<ContentCatalog>().First();
+                var root = doc.RootElement;
+                if (root.TryGetProperty("discriminator", out _))
+                {
+                    var options = new JsonSerializerOptions()
+                    {
+                        PropertyNameCaseInsensitive = true,
+                    };
+                    var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
+                    var refHandler = new ElementReferenceHandler(typeCache, root);
+                    options.ReferenceHandler = refHandler;
+                    return root.Deserialize<ContentCatalog>(options);
+                }
+                else if (root.TryGetProperty("Elements", out _) && root.TryGetProperty("Transform", out _))
+                {
+                    var model = Model.FromJson(json);
+                    return model.AllElementsOfType<ContentCatalog>().First();
+                }
             }
-
             return null;
         }
 
diff --git a/Elements/src/ContentElement.cs b/Elements/src/ContentElement.cs
index 7ac148df6..9afac50d0 100644
--- a/Elements/src/ContentElement.cs
+++ b/Elements/src/ContentElement.cs
@@ -32,8 +32,6 @@ public class ContentElement : GeometricElement
         [JsonPropertyName("Symbols")]
         public IList<Symbol> Symbols { get; set; }
 
-        private System.Collections.Generic.IDictionary<string, object> _additionalProperties = new System.Collections.Generic.Dictionary<string, object>();
-
         /// <summary>
         /// Construct a content element.
         /// </summary>
diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index a84f6ade6..dcbd1f40d 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -66,7 +66,8 @@ public string Name
         /// <summary>
         /// A collection of additional properties.
         /// </summary>
-        [JsonExtensionData]
+        // [JsonExtensionData]
+        [JsonConverter(typeof(AdditionalPropertiesConverter))]
         public System.Collections.Generic.IDictionary<string, object> AdditionalProperties
         {
             get { return _additionalProperties; }
diff --git a/Elements/src/Serialization/JSON/AdditionalPropertiesConverter.cs b/Elements/src/Serialization/JSON/AdditionalPropertiesConverter.cs
new file mode 100644
index 000000000..01c7d830b
--- /dev/null
+++ b/Elements/src/Serialization/JSON/AdditionalPropertiesConverter.cs
@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Elements.Serialization.JSON
+{
+    /// <summary>
+    /// Convert the additional properties collection.
+    /// This converter is required because System.Text.Json will read 
+    /// string values in the dictionary as JsonValue objects.
+    /// </summary>
+    public class AdditionalPropertiesConverter : JsonConverter<IDictionary<string, object>>
+    {
+        /// <summary>
+        /// Read the dictionary.
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <param name="typeToConvert"></param>
+        /// <param name="options"></param>
+        /// <returns></returns>
+        public override IDictionary<string, object> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            var result = new Dictionary<string, object>();
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+                foreach (var p in root.EnumerateObject())
+                {
+                    switch (p.Value.ValueKind)
+                    {
+                        case JsonValueKind.Number:
+                            if (p.Value.TryGetInt32(out var intValue))
+                            {
+                                result.Add(p.Name, intValue);
+                            }
+                            else if (p.Value.TryGetDouble(out var doubleValue))
+                            {
+                                result.Add(p.Name, doubleValue);
+                            }
+                            break;
+                        case JsonValueKind.String:
+                            if (p.Value.TryGetGuid(out var guidValue))
+                            {
+                                result.Add(p.Name, guidValue);
+                            }
+                            else
+                            {
+                                result.Add(p.Name, p.Value.GetString());
+                            }
+                            break;
+                    }
+                }
+                return result;
+            }
+        }
+
+        /// <summary>
+        /// Write the dictionary.
+        /// </summary>
+        /// <param name="writer"></param>
+        /// <param name="value"></param>
+        /// <param name="options"></param>
+        public override void Write(Utf8JsonWriter writer, IDictionary<string, object> value, JsonSerializerOptions options)
+        {
+            JsonSerializer.Serialize(writer, value);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/test/ContentTests.cs b/Elements/test/ContentTests.cs
index 3300af899..0977954f9 100644
--- a/Elements/test/ContentTests.cs
+++ b/Elements/test/ContentTests.cs
@@ -42,7 +42,6 @@ public void CatalogSerialization()
             var str = boxType2.ToString();
             boxType.AdditionalProperties["ImportantParameter"] = "The Value";
 
-
             var testCatalog = new ContentCatalog(new List<ContentElement> { boxType, boxType2 }, new List<Element>(), Guid.NewGuid(), "test");
 
             var savePath = "../../../models/ContentCatalog.json";

From 2bb069b9cd78f7098453a42a0a1bdeb965c7a129 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 23:24:54 -0700
Subject: [PATCH 045/150] Clean out the json inheritance converter.

---
 Elements/src/ContentCatalog.cs                |   2 +-
 Elements/src/Model.cs                         |   6 +-
 .../Serialization/JSON/AppDomainTypeCache.cs  |  83 +++++
 .../JSON/JsonInheritanceConverter.cs          | 326 ------------------
 4 files changed, 87 insertions(+), 330 deletions(-)
 create mode 100644 Elements/src/Serialization/JSON/AppDomainTypeCache.cs
 delete mode 100644 Elements/src/Serialization/JSON/JsonInheritanceConverter.cs

diff --git a/Elements/src/ContentCatalog.cs b/Elements/src/ContentCatalog.cs
index 53ae266a5..c3c890abc 100644
--- a/Elements/src/ContentCatalog.cs
+++ b/Elements/src/ContentCatalog.cs
@@ -60,7 +60,7 @@ public static ContentCatalog FromJson(string json)
                     {
                         PropertyNameCaseInsensitive = true,
                     };
-                    var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
+                    var typeCache = AppDomainTypeCache.BuildAppDomainTypeCache(out _);
                     var refHandler = new ElementReferenceHandler(typeCache, root);
                     options.ReferenceHandler = refHandler;
                     return root.Deserialize<ContentCatalog>(options);
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index c0ca5807a..b049ac2fe 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -210,14 +210,14 @@ public IEnumerable<T> AllElementsAssignableFromType<T>() where T : Element
         /// </summary>
         public string ToJson(bool indent = false, bool gatherSubElements = true)
         {
-            var exportModel = CreateExportModel(gatherSubElements);
+            // var exportModel = CreateExportModel(gatherSubElements);
 
             var serializerOptions = new JsonSerializerOptions
             {
                 WriteIndented = indent
             };
             serializerOptions.Converters.Add(new ElementConverterFactory());
-            return JsonSerializer.Serialize(exportModel, serializerOptions);
+            return JsonSerializer.Serialize(this, serializerOptions);
         }
 
         /// <summary>
@@ -260,7 +260,7 @@ public static Model FromJson(string json)
         {
             var sw = new Stopwatch();
             sw.Start();
-            var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
+            var typeCache = AppDomainTypeCache.BuildAppDomainTypeCache(out _);
             Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating type cache.");
 
             Model model = null;
diff --git a/Elements/src/Serialization/JSON/AppDomainTypeCache.cs b/Elements/src/Serialization/JSON/AppDomainTypeCache.cs
new file mode 100644
index 000000000..61f3a7453
--- /dev/null
+++ b/Elements/src/Serialization/JSON/AppDomainTypeCache.cs
@@ -0,0 +1,83 @@
+#pragma warning disable CS1591
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using Elements.Geometry;
+using Elements.Geometry.Solids;
+
+namespace Elements.Serialization.JSON
+{
+    public static class AppDomainTypeCache
+    {
+        /// <summary>
+        /// The type cache needs to contains all types that will have a discriminator.
+        /// This includes base types, like elements, and all derived types like Wall.
+        /// We use reflection to find all public types available in the app domain
+        /// that have a JsonConverterAttribute whose converter type is the
+        /// Elements.Serialization.JSON.JsonInheritanceConverter.
+        /// </summary>
+        /// <returns>A dictionary containing all found types keyed by their full name.</returns>
+        internal static Dictionary<string, Type> BuildAppDomainTypeCache(out List<string> failedAssemblyErrors)
+        {
+            var typeCache = new Dictionary<string, Type>();
+
+            failedAssemblyErrors = new List<string>();
+
+            var skipAssembliesPrefices = new[] { "System", "SixLabors", "Newtonsoft" };
+            foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies().Where(a =>
+            {
+                var name = a.GetName().Name;
+                return !skipAssembliesPrefices.Any(p => name.StartsWith(p));
+            }))
+            {
+                var types = Array.Empty<Type>();
+                try
+                {
+                    types = assembly.GetTypes();
+                }
+                catch (ReflectionTypeLoadException)
+                {
+                    failedAssemblyErrors.Add($"Failed to load assembly: {assembly.FullName}");
+                    continue;
+                }
+                foreach (var t in types)
+                {
+                    try
+                    {
+                        if (IsValidTypeForElements(t) && !typeCache.ContainsKey(t.FullName))
+                        {
+                            typeCache.Add(t.FullName, t);
+                        }
+                    }
+                    catch (TypeLoadException)
+                    {
+                        failedAssemblyErrors.Add($"Failed to load type: {t.FullName}");
+                        continue;
+                    }
+                }
+            }
+
+            return typeCache;
+        }
+
+        private static bool IsValidTypeForElements(Type t)
+        {
+            if (t.IsPublic && t.IsClass)
+            {
+                var attrib = t.GetCustomAttribute<System.Text.Json.Serialization.JsonConverterAttribute>();
+                if (attrib != null && attrib.ConverterType.GenericTypeArguments.Length > 0)
+                {
+                    var valid = attrib.ConverterType.GenericTypeArguments[0] == t
+                        || attrib.ConverterType == typeof(ElementConverter<Element>)
+                        || attrib.ConverterType == typeof(ElementConverter<SolidOperation>)
+                        || attrib.ConverterType == typeof(ElementConverter<Curve>);
+                    return valid;
+                }
+            }
+
+            return false;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs b/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
deleted file mode 100644
index ea904c470..000000000
--- a/Elements/src/Serialization/JSON/JsonInheritanceConverter.cs
+++ /dev/null
@@ -1,326 +0,0 @@
-#pragma warning disable CS1591
-
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using Elements.Geometry;
-using Elements.Geometry.Solids;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
-
-namespace Elements.Serialization.JSON
-{
-    public class JsonInheritanceConverter : JsonConverter
-    {
-        internal static readonly string DefaultDiscriminatorName = "discriminator";
-
-        private readonly string _discriminator;
-
-        [System.ThreadStatic]
-        private static bool _isReading;
-
-        [System.ThreadStatic]
-        private static bool _isWriting;
-
-        [System.ThreadStatic]
-        private static Dictionary<string, Type> _typeCache;
-        private static Dictionary<string, Type> TypeCache
-        {
-            get
-            {
-                if (_typeCache == null)
-                {
-                    _typeCache = BuildAppDomainTypeCache(out _);
-                }
-                return _typeCache;
-            }
-        }
-
-        [System.ThreadStatic]
-        private static Dictionary<Guid, Element> _elements;
-
-        public static Dictionary<Guid, Element> Elements
-        {
-            get
-            {
-                if (_elements == null)
-                {
-                    _elements = new Dictionary<Guid, Element>();
-                }
-                return _elements;
-            }
-        }
-
-        public JsonInheritanceConverter()
-        {
-            _discriminator = DefaultDiscriminatorName;
-        }
-
-        public JsonInheritanceConverter(string discriminator)
-        {
-            _discriminator = discriminator;
-        }
-
-        /// <summary>
-        /// The type cache needs to contains all types that will have a discriminator.
-        /// This includes base types, like elements, and all derived types like Wall.
-        /// We use reflection to find all public types available in the app domain
-        /// that have a JsonConverterAttribute whose converter type is the
-        /// Elements.Serialization.JSON.JsonInheritanceConverter.
-        /// </summary>
-        /// <returns>A dictionary containing all found types keyed by their full name.</returns>
-        internal static Dictionary<string, Type> BuildAppDomainTypeCache(out List<string> failedAssemblyErrors)
-        {
-            var typeCache = new Dictionary<string, Type>();
-
-            failedAssemblyErrors = new List<string>();
-
-            var skipAssembliesPrefices = new[] { "System", "SixLabors", "Newtonsoft" };
-            foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies().Where(a =>
-            {
-                var name = a.GetName().Name;
-                return !skipAssembliesPrefices.Any(p => name.StartsWith(p));
-            }))
-            {
-                var types = Array.Empty<Type>();
-                try
-                {
-                    types = assembly.GetTypes();
-                }
-                catch (ReflectionTypeLoadException)
-                {
-                    failedAssemblyErrors.Add($"Failed to load assembly: {assembly.FullName}");
-                    continue;
-                }
-                foreach (var t in types)
-                {
-                    try
-                    {
-                        if (IsValidTypeForElements(t) && !typeCache.ContainsKey(t.FullName))
-                        {
-                            typeCache.Add(t.FullName, t);
-                        }
-                    }
-                    catch (TypeLoadException)
-                    {
-                        failedAssemblyErrors.Add($"Failed to load type: {t.FullName}");
-                        continue;
-                    }
-                }
-            }
-
-            return typeCache;
-        }
-
-        private static bool IsValidTypeForElements(Type t)
-        {
-            if (t.IsPublic && t.IsClass)
-            {
-                var attrib = t.GetCustomAttribute<System.Text.Json.Serialization.JsonConverterAttribute>();
-                if (attrib != null && attrib.ConverterType.GenericTypeArguments.Length > 0)
-                {
-                    var valid = attrib.ConverterType.GenericTypeArguments[0] == t
-                        || attrib.ConverterType == typeof(ElementConverter<Element>)
-                        || attrib.ConverterType == typeof(ElementConverter<SolidOperation>)
-                        || attrib.ConverterType == typeof(ElementConverter<Curve>);
-                    return valid;
-                }
-            }
-
-            return false;
-        }
-
-        /// <summary>
-        /// Call this method after assemblies have been loaded into the app
-        /// domain to ensure that the converter's cache is up to date.
-        /// </summary>
-        internal static void RefreshAppDomainTypeCache(out List<string> errors)
-        {
-            _typeCache = BuildAppDomainTypeCache(out errors);
-        }
-
-        public static bool ElementwiseSerialization { get; set; } = false;
-
-        public override void WriteJson(Newtonsoft.Json.JsonWriter writer, object value, Newtonsoft.Json.JsonSerializer serializer)
-        {
-            try
-            {
-                _isWriting = true;
-
-                // Operate on all identifiable Elements with a path less than Entities.xxxxx
-                // This will get all properties.
-                if (value is Element element && writer.Path.Split('.').Length == 1 && !ElementwiseSerialization)
-                {
-                    var ident = element;
-                    writer.WriteValue(ident.Id);
-                }
-                else
-                {
-                    var jObject = Newtonsoft.Json.Linq.JObject.FromObject(value, serializer);
-                    if (jObject.TryGetValue(_discriminator, out JToken token))
-                    {
-                        ((JValue)token).Value = GetDiscriminatorName(value);
-                    }
-                    else
-                    {
-                        jObject.AddFirst(new Newtonsoft.Json.Linq.JProperty(_discriminator, GetDiscriminatorName(value)));
-                    }
-                    writer.WriteToken(jObject.CreateReader());
-                }
-            }
-            finally
-            {
-                _isWriting = false;
-            }
-        }
-
-        private static string GetDiscriminatorName(object value)
-        {
-            var t = value.GetType();
-            if (t.IsGenericType)
-            {
-                return $"{t.FullName.Split('`').First()}<{String.Join(",", t.GenericTypeArguments.Select(arg => arg.FullName))}>";
-            }
-            else
-            {
-                return t.FullName.Split('`').First();
-            }
-        }
-
-        public override bool CanWrite
-        {
-            get
-            {
-                if (_isWriting)
-                {
-                    _isWriting = false;
-                    return false;
-                }
-                return true;
-            }
-        }
-
-        public override bool CanRead
-        {
-            get
-            {
-                if (_isReading)
-                {
-                    _isReading = false;
-                    return false;
-                }
-                return true;
-            }
-        }
-
-        public override bool CanConvert(System.Type objectType)
-        {
-            return true;
-        }
-
-        public override object ReadJson(Newtonsoft.Json.JsonReader reader, System.Type objectType, object existingValue, Newtonsoft.Json.JsonSerializer serializer)
-        {
-            // The serialized value is an identifier, so the expectation is
-            // that the element with that id has already been deserialized.
-            if (typeof(Element).IsAssignableFrom(objectType) && reader.Path.Split('.').Length == 1 && reader.Value != null)
-            {
-                var id = Guid.Parse(reader.Value.ToString());
-                return Elements[id];
-            }
-
-            var jObject = serializer.Deserialize<Newtonsoft.Json.Linq.JObject>(reader);
-            if (jObject == null)
-            {
-                return null;
-            }
-
-            // We need to handle both cases where we're receiving JSON that has a
-            // discriminator, like that produced by serializing using this
-            // converter, and the case where the JSON does not have a discriminator,
-            // but the type is known during deserialization.
-            Type subtype;
-            string discriminator = null;
-            jObject.TryGetValue(_discriminator, out JToken discriminatorToken);
-            if (discriminatorToken != null)
-            {
-                discriminator = Newtonsoft.Json.Linq.Extensions.Value<string>(discriminatorToken);
-                subtype = GetObjectSubtype(objectType, discriminator, jObject);
-            }
-            else
-            {
-                // Without a discriminator the call to GetObjectSubtype will
-                // fall through to returning either a [UserElement] type or
-                // the object type.
-                subtype = GetObjectSubtype(objectType, null, jObject);
-            }
-
-            try
-            {
-                _isReading = true;
-                var obj = serializer.Deserialize(jObject.CreateReader(), subtype);
-
-                // Write the id to the cache so that we can retrieve it next time
-                // instead of de-serializing it again.
-                if (typeof(Element).IsAssignableFrom(objectType) && reader.Path.Split('.').Length > 1)
-                {
-                    var ident = (Element)obj;
-                    if (!Elements.ContainsKey(ident.Id))
-                    {
-                        Elements.Add(ident.Id, ident);
-                    }
-                }
-
-                return obj;
-            }
-            catch (Exception ex)
-            {
-                var baseMessage = "This may happen if the type is not recognized in the system.";
-                var moreInfoMessage = "See the inner exception for more details.";
-
-                if (discriminator != null)
-                {
-                    throw new Exception($"An object with the discriminator, {discriminator}, could not be deserialized. {baseMessage} {moreInfoMessage}", ex);
-                }
-                else
-                {
-                    throw new Exception($"{baseMessage} {moreInfoMessage}", ex);
-                }
-            }
-            finally
-            {
-                _isReading = false;
-            }
-        }
-
-        private System.Type GetObjectSubtype(System.Type objectType, string discriminator, JObject jObject)
-        {
-            // Check the type cache.
-            if (discriminator != null && TypeCache.ContainsKey(discriminator))
-            {
-                return TypeCache[discriminator];
-            }
-
-            // Check for proxy generics.
-            if (discriminator != null && discriminator.StartsWith("Elements.ElementProxy<"))
-            {
-                var typeNames = discriminator.Split('<')[1].Split('>')[0].Split(','); // We do this split because in theory we can serialize with multiple generics
-                var typeName = typeNames.FirstOrDefault();
-                var generic = TypeCache[typeName];
-                var proxy = typeof(ElementProxy<>).MakeGenericType(generic);
-                return proxy;
-            }
-
-            // If it's not in the type cache see if it's got a representation.
-            // Import it as a GeometricElement.
-            if (jObject.TryGetValue("Representation", out _))
-            {
-                return typeof(GeometricElement);
-            }
-
-            // The default behavior for this converter, as provided by nJSONSchema
-            // is to return the base objectType if a derived type can't be found.
-            return objectType;
-        }
-    }
-}
\ No newline at end of file

From 4218d79e3c56cadced3358f4c0a1a7b913bf7889 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 23:29:04 -0700
Subject: [PATCH 046/150] Don't use the model converter by default.

---
 Elements/src/Model.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index b049ac2fe..58c9d40eb 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -280,9 +280,9 @@ public static Model FromJson(string json)
                 var refHandler = new ElementReferenceHandler(typeCache, elementsElement);
                 options.ReferenceHandler = refHandler;
 
-                // We use the model converter here so that we have a chance to 
+                // Use the model converter here so that we have a chance to 
                 // intercept the creation of elements when things go wrong.
-                options.Converters.Add(new ModelConverter());
+                // options.Converters.Add(new ModelConverter());
 
                 model = JsonSerializer.Deserialize<Model>(json, options);
 

From 4edb5d029e61db9ca07bcca65e5260a0c1b9de68 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 23:36:15 -0700
Subject: [PATCH 047/150] Fix one test.

---
 Elements/test/BBox3Tests.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements/test/BBox3Tests.cs b/Elements/test/BBox3Tests.cs
index 71ac69aac..1b153a8be 100644
--- a/Elements/test/BBox3Tests.cs
+++ b/Elements/test/BBox3Tests.cs
@@ -152,7 +152,7 @@ public void BBoxesForElements()
                 {
                     PropertyNameCaseInsensitive = true,
                 };
-                var typeCache = JsonInheritanceConverter.BuildAppDomainTypeCache(out _);
+                var typeCache = AppDomainTypeCache.BuildAppDomainTypeCache(out _);
                 var refHandler = new ElementReferenceHandler(typeCache, root);
                 options.ReferenceHandler = refHandler;
 

From 060f64baee09b6de2117ec3860c3d59b68d013cb Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 24 Apr 2022 23:39:56 -0700
Subject: [PATCH 048/150] Fix the analysis mesh tests.

---
 Elements/src/Analysis/AnalysisMesh.cs | 11 ++++++++++-
 Elements/src/Analysis/ColorScale.cs   |  2 +-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Elements/src/Analysis/AnalysisMesh.cs b/Elements/src/Analysis/AnalysisMesh.cs
index e96348981..d4a93dd83 100644
--- a/Elements/src/Analysis/AnalysisMesh.cs
+++ b/Elements/src/Analysis/AnalysisMesh.cs
@@ -65,6 +65,15 @@ public double TotalAnalysisLocations
         /// </summary>
         public ColorScale ColorScale { get; set; }
 
+        /// <summary>
+        /// Construct an analysis mesh.
+        /// </summary>
+        [JsonConstructor]
+        public AnalysisMesh()
+        {
+            Material = new Material($"Analysis_{Guid.NewGuid()}", Colors.White, 0, 0, null, true, true, id: Guid.NewGuid());
+        }
+
         /// <summary>
         /// Construct an analysis mesh.
         /// </summary>
@@ -93,7 +102,7 @@ public AnalysisMesh(Polygon perimeter,
             this.VLength = vLength;
             this.ColorScale = colorScale;
             this._analyze = analyze;
-            this.Material = new Material($"Analysis_{Guid.NewGuid().ToString()}", Colors.White, 0, 0, null, true, true, id: Guid.NewGuid());
+            this.Material = new Material($"Analysis_{Guid.NewGuid()}", Colors.White, 0, 0, null, true, true, id: Guid.NewGuid());
         }
 
         /// <summary>
diff --git a/Elements/src/Analysis/ColorScale.cs b/Elements/src/Analysis/ColorScale.cs
index ce8225f86..424fda0f7 100644
--- a/Elements/src/Analysis/ColorScale.cs
+++ b/Elements/src/Analysis/ColorScale.cs
@@ -50,7 +50,7 @@ public ColorScale(List<Color> colors)
         /// <param name="discrete">Whether this color scale uses discrete values.</param>
         /// <param name="domains">The domains which the colors map to</param>
         [JsonConstructor]
-        internal ColorScale(List<Color> colors, Boolean discrete, List<Domain1d> domains = null)
+        public ColorScale(List<Color> colors, Boolean discrete, List<Domain1d> domains = null)
         {
             this.Colors = colors;
             this.Discrete = discrete;

From 4a93a2a02c941b978bb0952b1e1822088f331015 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 25 Apr 2022 15:01:45 -0700
Subject: [PATCH 049/150] Only write during debug.

---
 Elements/src/Model.cs                                       | 2 ++
 Elements/src/Serialization/JSON/ElementReferenceResolver.cs | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 58c9d40eb..13920c95a 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -261,7 +261,9 @@ public static Model FromJson(string json)
             var sw = new Stopwatch();
             sw.Start();
             var typeCache = AppDomainTypeCache.BuildAppDomainTypeCache(out _);
+#if DEBUG
             Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating type cache.");
+#endif
 
             Model model = null;
             using (var document = JsonDocument.Parse(json))
diff --git a/Elements/src/Serialization/JSON/ElementReferenceResolver.cs b/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
index 47641a762..8200d523f 100644
--- a/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
+++ b/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
@@ -22,7 +22,9 @@ internal class ElementReferenceResolver : ReferenceResolver
 
         public ElementReferenceResolver(Dictionary<string, Type> typeCache, JsonElement documentElements)
         {
+#if DEBUG
             Console.WriteLine("Constructing a new reference resolver.");
+#endif
             TypeCache = typeCache;
             DocumentElements = documentElements;
         }

From 197c432f0e157c39f4b89ebe6b4bebec58c8946f Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 25 Apr 2022 15:01:53 -0700
Subject: [PATCH 050/150] Fix import mesh element.

---
 Elements/src/ImportMeshElement.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Elements/src/ImportMeshElement.cs b/Elements/src/ImportMeshElement.cs
index 007885ac8..d4822885e 100644
--- a/Elements/src/ImportMeshElement.cs
+++ b/Elements/src/ImportMeshElement.cs
@@ -18,6 +18,11 @@ public sealed class ImportMeshElement : MeshElement
         /// </summary>
         public string Path { get; }
 
+        /// <summary>
+        /// The length unit used in the provided mesh.
+        /// </summary>
+        public LengthUnit LengthUnit { get; set; }
+
         /// <summary>
         /// Construct an import mesh element.
         /// </summary>
@@ -38,6 +43,7 @@ public ImportMeshElement(string path,
                                                     name)
         {
             this.Path = path;
+            this.LengthUnit = lengthUnit;
 
             if (!File.Exists(path))
             {

From ac2a5ba730d8be6eb036d08375cf4c5ad44a18e4 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 25 Apr 2022 15:22:12 -0700
Subject: [PATCH 051/150] We must keep these for now.

---
 Elements/src/Model.cs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 13920c95a..fc06f4382 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -210,14 +210,17 @@ public IEnumerable<T> AllElementsAssignableFromType<T>() where T : Element
         /// </summary>
         public string ToJson(bool indent = false, bool gatherSubElements = true)
         {
-            // var exportModel = CreateExportModel(gatherSubElements);
+            // TODO: Remove this excess model creation when the JSON serializer
+            // supports recursive write out and all receivers are capable of 
+            // receiving updated JSON.
+            var exportModel = CreateExportModel(gatherSubElements);
 
             var serializerOptions = new JsonSerializerOptions
             {
                 WriteIndented = indent
             };
             serializerOptions.Converters.Add(new ElementConverterFactory());
-            return JsonSerializer.Serialize(this, serializerOptions);
+            return JsonSerializer.Serialize(exportModel, serializerOptions);
         }
 
         /// <summary>
@@ -274,6 +277,7 @@ public static Model FromJson(string json)
                 var options = new JsonSerializerOptions()
                 {
                     PropertyNameCaseInsensitive = true,
+                    AllowTrailingCommas = true
                 };
 
                 // Our custom reference handler will cache elements by id as

From d6146780186ba4ca23252911e6ec8c003772e355 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 25 Apr 2022 15:22:43 -0700
Subject: [PATCH 052/150] Throw a meaningful exception and create a new API to
 deserialize one element.

---
 Elements/src/Element.cs                       | 27 +++++++++++++++++++
 .../Serialization/JSON/ElementConverter.cs    |  5 ++++
 2 files changed, 32 insertions(+)

diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index dcbd1f40d..85227ca4c 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -1,6 +1,7 @@
 using System;
 using Elements.Serialization.JSON;
 using System.Text.Json.Serialization;
+using System.Text.Json;
 
 namespace Elements
 {
@@ -90,5 +91,31 @@ protected virtual void RaisePropertyChanged([System.Runtime.CompilerServices.Cal
                 handler(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
         }
 
+        /// <summary>
+        /// Deserialize an element of type T using reference resolution
+        /// and discriminated type construction.
+        /// Do not use this method for the deserialization large numbers of
+        /// elements, as it needs to construct a reference handler and type cache
+        /// for each invocation.
+        /// </summary>
+        /// <param name="json">The JSON of the element.</param>
+        /// <returns>An element of type T.</returns>
+        public static T Deserialize<T>(string json)
+        {
+            using (var doc = JsonDocument.Parse(json))
+            {
+                var root = doc.RootElement;
+                var options = new JsonSerializerOptions()
+                {
+                    PropertyNameCaseInsensitive = true,
+                    AllowTrailingCommas = true
+                };
+                var typeCache = AppDomainTypeCache.BuildAppDomainTypeCache(out _);
+                var refHandler = new ElementReferenceHandler(typeCache, root);
+                options.ReferenceHandler = refHandler;
+                return JsonSerializer.Deserialize<T>(doc, options);
+            }
+        }
+
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index a9f93ac38..124cf3e12 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -45,6 +45,11 @@ internal class ElementConverter<T> : JsonConverter<T>
 
         public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
+            if (options.ReferenceHandler == null)
+            {
+                throw new Exception("You are deserializing an element, but you don't have a reference resolver. Try using Element.Deserialize<T> instead.");
+            }
+
             var resolver = options.ReferenceHandler.CreateResolver() as ElementReferenceResolver;
 
             if (reader.TokenType == JsonTokenType.String)

From bb0b91e71a819a638652f2478601e5de8aa099f9 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 25 Apr 2022 15:28:32 -0700
Subject: [PATCH 053/150] Fifteen test fixes.

---
 Elements/src/Space.cs         |  2 ++
 Elements/test/BBox3Tests.cs   | 15 +--------------
 Elements/test/GltfTests.cs    |  2 +-
 Elements/test/Grid2dTests.cs  |  3 ++-
 Elements/test/ProfileTests.cs | 12 +++++-------
 5 files changed, 11 insertions(+), 23 deletions(-)

diff --git a/Elements/src/Space.cs b/Elements/src/Space.cs
index 6bf4fb21d..bcc54e99f 100644
--- a/Elements/src/Space.cs
+++ b/Elements/src/Space.cs
@@ -4,6 +4,7 @@
 using System.Text.Json.Serialization;
 using System.Collections.Generic;
 using System.Linq;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -18,6 +19,7 @@ public class Space : GeometricElement
         /// <summary>
         /// The profile of the space.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile { get; set; }
 
         /// <summary>
diff --git a/Elements/test/BBox3Tests.cs b/Elements/test/BBox3Tests.cs
index 1b153a8be..9aeaf4ca9 100644
--- a/Elements/test/BBox3Tests.cs
+++ b/Elements/test/BBox3Tests.cs
@@ -144,20 +144,7 @@ public void BBoxesForElements()
             ""Opaque"": 1
         }";
 
-            ContentElement contentElement;
-            using (var doc = JsonDocument.Parse(contentJson))
-            {
-                var root = doc.RootElement;
-                var options = new JsonSerializerOptions()
-                {
-                    PropertyNameCaseInsensitive = true,
-                };
-                var typeCache = AppDomainTypeCache.BuildAppDomainTypeCache(out _);
-                var refHandler = new ElementReferenceHandler(typeCache, root);
-                options.ReferenceHandler = refHandler;
-
-                contentElement = JsonSerializer.Deserialize<ContentElement>(contentJson, options);
-            }
+            var contentElement = Element.Deserialize<ContentElement>(contentJson);
 
             elements.Add(contentElement.CreateInstance(new Transform(-6, 0, 0), null));
             elements.Add(contentElement.CreateInstance(new Transform(new Vector3(-8, 0, 0), 45), null));
diff --git a/Elements/test/GltfTests.cs b/Elements/test/GltfTests.cs
index 0092ac26d..e70111a5f 100644
--- a/Elements/test/GltfTests.cs
+++ b/Elements/test/GltfTests.cs
@@ -83,7 +83,7 @@ public void GeometricElementWithoutMaterialUsesDefaultMaterial()
         public void ThinObjectsGenerateCorrectly()
         {
             var json = File.ReadAllText("../../../models/Geometry/Single-Panel.json");
-            var panel = JsonSerializer.Deserialize<Panel>(json);
+            var panel = Element.Deserialize<Panel>(json);
             var model = new Model();
             model.AddElement(panel);
             var modelsDir = Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "models");
diff --git a/Elements/test/Grid2dTests.cs b/Elements/test/Grid2dTests.cs
index 1533d5a74..2f1871d52 100644
--- a/Elements/test/Grid2dTests.cs
+++ b/Elements/test/Grid2dTests.cs
@@ -548,7 +548,8 @@ public void RotateGridWithClosePointDoNotThrow()
         public void SeparatorsFromBadPolygon()
         {
             var json = File.ReadAllText("../../../models/Geometry/bad_grid.json");
-            var grid = JsonSerializer.Deserialize<Grid2d>(json);
+
+            var grid = Element.Deserialize<Grid2d>(json);
             var cellSeparators = grid.GetCellSeparators(GridDirection.V, true);
         }
     }
diff --git a/Elements/test/ProfileTests.cs b/Elements/test/ProfileTests.cs
index bafebcacc..bf3660d94 100644
--- a/Elements/test/ProfileTests.cs
+++ b/Elements/test/ProfileTests.cs
@@ -4,9 +4,7 @@
 using System.Linq;
 using System.Collections.Generic;
 using Elements.Spatial;
-using Elements.Serialization.JSON;
 using System.IO;
-using System.Text.Json.Serialization;
 using System.Text.Json;
 
 namespace Elements.Tests
@@ -424,9 +422,9 @@ public void DifferenceFail()
         {
             // This test used to fail with an exception due to a very small polygon produced from the boolean.
             var aShapeJson = "{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-149.51680916003411,\"Y\":-545.6788101645068,\"Z\":0.0},{\"X\":-181.13449678692302,\"Y\":-508.57118930829984,\"Z\":0.0},{\"X\":-185.00173212061222,\"Y\":-476.0495417216826,\"Z\":0.0},{\"X\":-211.47915563014516,\"Y\":-479.19804234633307,\"Z\":0.0},{\"X\":-213.43484799507593,\"Y\":-627.6323068549372,\"Z\":0.0},{\"X\":-169.59832064900132,\"Y\":-624.8068240421294,\"Z\":0.0},{\"X\":-144.53329588528302,\"Y\":-620.4717620034767,\"Z\":0.0}]},\"Voids\":[{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-174.65966226538052,\"Y\":-581.4103523143159,\"Z\":0.0},{\"X\":-174.89675190025594,\"Y\":-599.4087908161704,\"Z\":0.0},{\"X\":-184.89588440128614,\"Y\":-599.2770743523507,\"Z\":0.0},{\"X\":-184.65879476641072,\"Y\":-581.2786358504962,\"Z\":0.0}]}],\"Id\":\"5b65b6a5-b0a4-4373-ba47-76380d379893\",\"Name\":null}";
-            var p1 = JsonSerializer.Deserialize<Profile>(aShapeJson);
+            var p1 = Element.Deserialize<Profile>(aShapeJson);
             var otherPolysJson = "[{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-170.30455,\"Y\":-618.83988,\"Z\":0.0},{\"X\":-150.8792,\"Y\":-615.48022,\"Z\":0.0},{\"X\":-155.37154,\"Y\":-548.05882,\"Z\":0.0},{\"X\":-186.87827,\"Y\":-511.08143,\"Z\":0.0},{\"X\":-190.01511,\"Y\":-484.70206,\"Z\":0.0},{\"X\":-205.57554,\"Y\":-486.55239,\"Z\":0.0},{\"X\":-207.34994,\"Y\":-621.22765,\"Z\":0.0}]},\"Voids\":[{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-205.82871,\"Y\":-619.62649,\"Z\":0.0},{\"X\":-204.09299,\"Y\":-487.88667,\"Z\":0.0},{\"X\":-191.3275,\"Y\":-486.36869,\"Z\":0.0},{\"X\":-188.31421,\"Y\":-511.70899,\"Z\":0.0},{\"X\":-156.83522,\"Y\":-548.65382,\"Z\":0.0},{\"X\":-152.46567,\"Y\":-614.23233,\"Z\":0.0},{\"X\":-170.48117,\"Y\":-617.34816,\"Z\":0.0}]}],\"Id\":\"0fbf2cac-126b-45a3-b32e-e53c32c9e05a\",\"Name\":\"Corridor\"},{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-153.1705,\"Y\":-580.19402,\"Z\":0.0},{\"X\":-206.8,\"Y\":-579.48763,\"Z\":0.0},{\"X\":-206.81976,\"Y\":-580.98749,\"Z\":0.0},{\"X\":-184.6588,\"Y\":-581.27939,\"Z\":0.0},{\"X\":-184.65879,\"Y\":-581.27864,\"Z\":0.0},{\"X\":-174.65966,\"Y\":-581.41035,\"Z\":0.0},{\"X\":-174.65967,\"Y\":-581.41109,\"Z\":0.0},{\"X\":-153.19026,\"Y\":-581.69388,\"Z\":0.0}]},\"Voids\":[],\"Id\":\"a02d7813-883b-4bd4-8bd5-47aa0ce8ac05\",\"Name\":null},{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-184.89513,\"Y\":-599.27708,\"Z\":0.0},{\"X\":-184.89588,\"Y\":-599.27707,\"Z\":0.0},{\"X\":-184.65879,\"Y\":-581.27864,\"Z\":0.0},{\"X\":-184.65805,\"Y\":-581.27865,\"Z\":0.0},{\"X\":-183.76997,\"Y\":-513.85917,\"Z\":0.0},{\"X\":-185.26983,\"Y\":-513.83941,\"Z\":0.0},{\"X\":-186.66607,\"Y\":-619.83625,\"Z\":0.0},{\"X\":-185.16621,\"Y\":-619.85601,\"Z\":0.0}]},\"Voids\":[],\"Id\":\"59c1f71d-7c88-4fa3-8b79-6d799f6f80f0\",\"Name\":null},{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-151.87004,\"Y\":-599.71136,\"Z\":0.0},{\"X\":-174.89674,\"Y\":-599.40804,\"Z\":0.0},{\"X\":-174.89675,\"Y\":-599.40879,\"Z\":0.0},{\"X\":-184.89588,\"Y\":-599.27707,\"Z\":0.0},{\"X\":-184.89587,\"Y\":-599.27633,\"Z\":0.0},{\"X\":-207.05688,\"Y\":-598.98441,\"Z\":0.0},{\"X\":-207.07664,\"Y\":-600.48427,\"Z\":0.0},{\"X\":-151.8898,\"Y\":-601.21122,\"Z\":0.0}]},\"Voids\":[],\"Id\":\"b320c3f1-eac5-46a9-9ed5-3bb49a5e38e9\",\"Name\":null},{\"discriminator\":\"Elements.Geometry.Profile\",\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-172.44555,\"Y\":-527.14991,\"Z\":0.0},{\"X\":-173.94541,\"Y\":-527.13015,\"Z\":0.0},{\"X\":-174.66041,\"Y\":-581.41034,\"Z\":0.0},{\"X\":-174.65966,\"Y\":-581.41035,\"Z\":0.0},{\"X\":-174.89675,\"Y\":-599.40879,\"Z\":0.0},{\"X\":-174.89749,\"Y\":-599.40878,\"Z\":0.0},{\"X\":-175.1568,\"Y\":-619.09442,\"Z\":0.0},{\"X\":-173.65694,\"Y\":-619.11418,\"Z\":0.0}]},\"Voids\":[],\"Id\":\"82060be1-c38b-4eaf-aa5f-6792f6839f37\",\"Name\":null}]";
-            var otherPolys = JsonSerializer.Deserialize<List<Profile>>(otherPolysJson);
+            var otherPolys = Element.Deserialize<List<Profile>>(otherPolysJson);
             var result = Elements.Geometry.Profile.Difference(new[] { p1 }, otherPolys);
         }
 
@@ -435,7 +433,7 @@ public void DifferenceFail2()
         {
             this.Name = nameof(DifferenceFail2);
             var json = File.ReadAllText("../../../models/Geometry/differenceFail2.json");
-            var profiles = JsonSerializer.Deserialize<Dictionary<string, IEnumerable<Profile>>>(json);
+            var profiles = Element.Deserialize<Dictionary<string, IEnumerable<Profile>>>(json);
             var firstSet = profiles["levelBoundaryCleaned"];
             var secondSet = profiles["insetProfiles"];
             var diff = Elements.Geometry.Profile.Difference(firstSet, secondSet);
@@ -520,8 +518,8 @@ public void ProfileInvalidWontThrow()
         public void DifferenceToleratesBadGeometry()
         {
             Name = nameof(DifferenceToleratesBadGeometry);
-            var cp = JsonSerializer.Deserialize<List<Profile>>(File.ReadAllText("../../../models/Geometry/corridorProfiles.json"));
-            var lb = JsonSerializer.Deserialize<Profile>(File.ReadAllText("../../../models/Geometry/levelBoundary.json"));
+            var cp = Element.Deserialize<List<Profile>>(File.ReadAllText("../../../models/Geometry/corridorProfiles.json"));
+            var lb = Element.Deserialize<Profile>(File.ReadAllText("../../../models/Geometry/levelBoundary.json"));
             var results = Elements.Geometry.Profile.Difference(new[] { lb }, cp);
             Model.AddElements(results);
             Model.AddElements(results.SelectMany(r => r.ToModelCurves()));

From baa7ba17dde62b380085fb77b2c127e48a74285e Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 25 Apr 2022 21:40:03 -0700
Subject: [PATCH 054/150] Fix solid converter.

---
 .../src/Geometry/Solids/ConstructedSolid.cs   |  28 +++-
 .../src/Geometry/Solids/SolidOperation.cs     |   4 +-
 Elements/src/Model.cs                         |   7 +-
 .../src/Serialization/JSON/SolidConverter.cs  | 141 ++++++++----------
 Elements/test/SolidTests.cs                   |  24 +--
 5 files changed, 107 insertions(+), 97 deletions(-)

diff --git a/Elements/src/Geometry/Solids/ConstructedSolid.cs b/Elements/src/Geometry/Solids/ConstructedSolid.cs
index 1e454aa8a..960a5cc7b 100644
--- a/Elements/src/Geometry/Solids/ConstructedSolid.cs
+++ b/Elements/src/Geometry/Solids/ConstructedSolid.cs
@@ -1,4 +1,3 @@
-using Elements.Serialization.JSON;
 using System.Text.Json.Serialization;
 
 namespace Elements.Geometry.Solids
@@ -8,6 +7,25 @@ namespace Elements.Geometry.Solids
     /// </summary>
     public class ConstructedSolid : SolidOperation
     {
+        /// <summary>
+        /// Create an import solid.
+        /// </summary>
+        [JsonConstructor]
+        public ConstructedSolid() : base(false)
+        {
+        }
+
+        /// <summary>
+        /// The constructed solid.
+        /// </summary>
+        // This is hack to enable serialization of the normally
+        // hidden solid property.
+        public new Solid Solid
+        {
+            get { return _solid; }
+            set { _solid = value; }
+        }
+
         /// <summary>
         /// Create an import solid.
         /// </summary>
@@ -15,13 +33,7 @@ public class ConstructedSolid : SolidOperation
         /// <param name="isVoid">Is the operation a void?</param>
         public ConstructedSolid(Solid solid, bool isVoid = false) : base(isVoid)
         {
-            this._solid = solid;
+            _solid = solid;
         }
-
-        // This is a hack to get the normally JsonIgnored
-        // `Solid` property to serialize.
-        [JsonPropertyName("Solid")]
-        [JsonConverter(typeof(SolidConverter))]
-        internal Solid InternalSolid => base.Solid;
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Geometry/Solids/SolidOperation.cs b/Elements/src/Geometry/Solids/SolidOperation.cs
index 4ebc395ed..6c509cc87 100644
--- a/Elements/src/Geometry/Solids/SolidOperation.cs
+++ b/Elements/src/Geometry/Solids/SolidOperation.cs
@@ -25,7 +25,9 @@ public Solid Solid
             get { return _solid; }
         }
 
-        /// <summary>Is the solid operation a void operation?</summary>
+        /// <summary>
+        /// Is the solid operation a void operation?
+        /// </summary>
         [JsonPropertyName("IsVoid")]
         public bool IsVoid { get; set; } = false;
 
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index fc06f4382..ab88b7379 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -220,6 +220,7 @@ public string ToJson(bool indent = false, bool gatherSubElements = true)
                 WriteIndented = indent
             };
             serializerOptions.Converters.Add(new ElementConverterFactory());
+            serializerOptions.Converters.Add(new SolidConverter());
             return JsonSerializer.Serialize(exportModel, serializerOptions);
         }
 
@@ -236,7 +237,10 @@ public void ToJson(string path, bool gatherSubElements = true)
             // https://www.newtonsoft.com/json/help/html/Performance.htm
             using (FileStream s = File.Create(path))
             {
-                JsonSerializer.Serialize(s, exportModel);
+                var serializerOptions = new JsonSerializerOptions();
+                serializerOptions.Converters.Add(new ElementConverterFactory());
+                serializerOptions.Converters.Add(new SolidConverter());
+                JsonSerializer.Serialize(s, exportModel, serializerOptions);
             }
         }
 
@@ -279,6 +283,7 @@ public static Model FromJson(string json)
                     PropertyNameCaseInsensitive = true,
                     AllowTrailingCommas = true
                 };
+                options.Converters.Add(new SolidConverter());
 
                 // Our custom reference handler will cache elements by id as
                 // they are deserialized, supporting reading elements by id
diff --git a/Elements/src/Serialization/JSON/SolidConverter.cs b/Elements/src/Serialization/JSON/SolidConverter.cs
index 84f87f116..6f22da6fd 100644
--- a/Elements/src/Serialization/JSON/SolidConverter.cs
+++ b/Elements/src/Serialization/JSON/SolidConverter.cs
@@ -2,27 +2,27 @@
 
 using Elements.Geometry.Solids;
 using System;
-using Newtonsoft.Json.Linq;
 using System.Collections.Generic;
 using Elements.Geometry;
 using System.Linq;
 using System.Reflection;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
+using System.Text.Json;
 
 namespace Elements.Serialization.JSON
 {
     /// <summary>
-    /// The SolidConverter is used to serialize and deserialize a Solid.
+    /// The SolidConverter is used to deserialize a Solid.
     /// Solids have a self-referencing structure which does not serialize
     /// effectively using the default serialization logic. The SolidConverter
     /// serializes and deserializes starting at the Solid's Faces, using
     /// Vertex and Edge ids to reconstruct and link the Edges and Vertices as necessary.
     /// </summary>
-    internal class SolidConverter : JsonConverter
+    internal class SolidConverter : JsonConverter<Solid>
     {
         private List<Type> _solidTypes;
 
-        public SolidConverter(IDictionary<Guid, Material> materials)
+        public SolidConverter()
         {
             LoadSolidTypes();
         }
@@ -33,7 +33,7 @@ private void LoadSolidTypes()
             {
                 _solidTypes = Assembly.GetExecutingAssembly().GetTypes().Where(t => typeof(Solid).IsAssignableFrom(t)).ToList();
             }
-            catch (System.Reflection.ReflectionTypeLoadException ex)
+            catch (ReflectionTypeLoadException ex)
             {
                 foreach (var x in ex.LoaderExceptions)
                 {
@@ -42,87 +42,78 @@ private void LoadSolidTypes()
             }
         }
 
-        public SolidConverter()
+        public override Solid Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            LoadSolidTypes();
-        }
-
-        public override bool CanConvert(Type objectType)
-        {
-            return typeof(Solid).IsAssignableFrom(objectType);
-        }
-
-        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
-        {
-            var obj = JObject.Load(reader);
-            var typeName = (string)obj.GetValue("type");
-            var foundType = _solidTypes.FirstOrDefault(t => t.FullName.ToLower() == typeName);
-            if (foundType == null)
-            {
-                throw new Exception($"The object with type name, {typeName}, could not be deserialzed.");
-            }
-
-            var solid = (Solid)Activator.CreateInstance(foundType, new object[] { });
-
-            foreach (JObject vobj in (JArray)obj.GetValue("vertices"))
+            using (var obj = JsonDocument.ParseValue(ref reader))
             {
-                var id = (long)vobj.GetValue("id");
-                var x = (double)vobj.GetValue("x");
-                var y = (double)vobj.GetValue("y");
-                var z = (double)vobj.GetValue("z");
-                solid.AddVertex(id, new Vector3(x, y, z));
-            }
-
-            foreach (JObject face in (JArray)obj.GetValue("faces"))
-            {
-                var id = (long)face.GetValue("id");
+                var root = obj.RootElement;
+                var typeName = root.GetProperty("type").GetString();
+                var foundType = _solidTypes.FirstOrDefault(t => t.FullName.ToLower() == typeName);
+                if (foundType == null)
+                {
+                    throw new Exception($"The object with type name, {typeName}, could not be deserialzed.");
+                }
 
-                var outer = new Loop();
+                var solid = (Solid)Activator.CreateInstance(foundType, new object[] { });
 
-                foreach (JObject heobj in (JArray)face.GetValue("outer"))
+                foreach (var vobj in root.GetProperty("vertices").EnumerateArray())
                 {
-                    ReadHalfEdge(heobj, outer, solid);
+                    var id = vobj.GetProperty("id").GetInt64();
+                    var x = vobj.GetProperty("x").GetDouble();
+                    var y = vobj.GetProperty("y").GetDouble();
+                    var z = vobj.GetProperty("z").GetDouble();
+                    solid.AddVertex(id, new Vector3(x, y, z));
                 }
 
-                JToken innerobjs;
-                var inners = new List<Loop>();
-                if (face.TryGetValue("inner", out innerobjs))
+                foreach (var face in root.GetProperty("faces").EnumerateArray())
                 {
-                    foreach (JArray innerobj in innerobjs)
+                    var id = face.GetProperty("id").GetInt64();
+
+                    var outer = new Loop();
+
+                    foreach (var heobj in face.GetProperty("outer").EnumerateArray())
                     {
-                        var inner = new Loop();
-                        inners.Add(inner);
-                        foreach (JObject heobj in innerobj)
+                        ReadHalfEdge(heobj, outer, solid);
+                    }
+
+                    var inners = new List<Loop>();
+                    if (face.TryGetProperty("inner", out var innerobjs))
+                    {
+                        foreach (var innerobj in innerobjs.EnumerateArray())
                         {
-                            ReadHalfEdge(heobj, inner, solid);
+                            var inner = new Loop();
+                            inners.Add(inner);
+                            foreach (var heobj in innerobj.EnumerateArray())
+                            {
+                                ReadHalfEdge(heobj, inner, solid);
+                            }
                         }
                     }
+                    solid.AddFace(id, outer, inners.ToArray());
                 }
-                solid.AddFace(id, outer, inners.ToArray());
-            }
 
-            return solid;
+                return solid;
+            }
         }
 
-        private void ReadHalfEdge(JObject heobj, Loop loop, Solid solid)
+        private void ReadHalfEdge(JsonElement heobj, Loop loop, Solid solid)
         {
-            var vobj = (JObject)heobj.GetValue("vertex");
-            var vid = (long)heobj.GetValue("vertex_id");
+            // var vobj = heobj.GetProperty("vertex");
+            var vid = heobj.GetProperty("vertex_id").GetInt64();
             var v = solid.Vertices[vid];
 
             var he = new HalfEdge(v, loop);
             loop.AddEdgeToEnd(he);
 
-            var eid = (long)heobj.GetValue("edge_id");
-            Edge edge;
-            if (!solid.Edges.TryGetValue(eid, out edge))
+            var eid = heobj.GetProperty("edge_id").GetInt64();
+            if (!solid.Edges.TryGetValue(eid, out Edge edge))
             {
                 edge = solid.AddEdge(eid);
             }
 
             he.Edge = edge;
 
-            var side = (string)heobj.GetValue("edge_side");
+            var side = heobj.GetProperty("edge_side").GetString();
             if (side == "left")
             {
                 edge.Left = he;
@@ -133,27 +124,25 @@ private void ReadHalfEdge(JObject heobj, Loop loop, Solid solid)
             }
         }
 
-        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        public override void Write(Utf8JsonWriter writer, Solid value, JsonSerializerOptions options)
         {
-            var solid = (Solid)value;
-
             writer.WriteStartObject();
             writer.WritePropertyName("type");
-            writer.WriteValue(value.GetType().FullName.ToLower());
+            writer.WriteStringValue(value.GetType().FullName.ToLower());
 
             writer.WritePropertyName("vertices");
             writer.WriteStartArray();
-            foreach (var v in solid.Vertices.Values)
+            foreach (var v in value.Vertices.Values)
             {
                 writer.WriteStartObject();
                 writer.WritePropertyName("id");
-                writer.WriteValue(v.Id);
+                writer.WriteNumberValue(v.Id);
                 writer.WritePropertyName("x");
-                writer.WriteValue(v.Point.X);
+                writer.WriteNumberValue(v.Point.X);
                 writer.WritePropertyName("y");
-                writer.WriteValue(v.Point.Y);
+                writer.WriteNumberValue(v.Point.Y);
                 writer.WritePropertyName("z");
-                writer.WriteValue(v.Point.Z);
+                writer.WriteNumberValue(v.Point.Z);
                 writer.WriteEndObject();
             }
             writer.WriteEndArray();
@@ -161,18 +150,18 @@ public override void WriteJson(JsonWriter writer, object value, JsonSerializer s
             writer.WritePropertyName("faces");
             writer.WriteStartArray();
 
-            foreach (var f in solid.Faces.Values)
+            foreach (var f in value.Faces.Values)
             {
                 writer.WriteStartObject();
 
                 writer.WritePropertyName("id");
-                writer.WriteValue(f.Id);
+                writer.WriteNumberValue(f.Id);
 
                 writer.WritePropertyName("outer");
                 writer.WriteStartArray();
                 foreach (var he in f.Outer.Edges)
                 {
-                    WriteHalfEdge(he, writer, value);
+                    WriteHalfEdge(he, writer);
                 }
                 writer.WriteEndArray();
 
@@ -186,7 +175,7 @@ public override void WriteJson(JsonWriter writer, object value, JsonSerializer s
                         writer.WriteStartArray();
                         foreach (var he in loop.Edges)
                         {
-                            WriteHalfEdge(he, writer, value);
+                            WriteHalfEdge(he, writer);
                         }
                         writer.WriteEndArray();
                     }
@@ -200,15 +189,15 @@ public override void WriteJson(JsonWriter writer, object value, JsonSerializer s
             writer.WriteEndObject();
         }
 
-        private void WriteHalfEdge(HalfEdge he, JsonWriter writer, object value)
+        private void WriteHalfEdge(HalfEdge he, Utf8JsonWriter writer)
         {
             writer.WriteStartObject();
             writer.WritePropertyName("vertex_id");
-            writer.WriteValue(he.Vertex.Id);
+            writer.WriteNumberValue(he.Vertex.Id);
             writer.WritePropertyName("edge_id");
-            writer.WriteValue(he.Edge.Id);
+            writer.WriteNumberValue(he.Edge.Id);
             writer.WritePropertyName("edge_side");
-            writer.WriteValue(he.Edge.Left == he ? "left" : "right");
+            writer.WriteStringValue(he.Edge.Left == he ? "left" : "right");
             writer.WriteEndObject();
         }
     }
diff --git a/Elements/test/SolidTests.cs b/Elements/test/SolidTests.cs
index aab19f873..da158c95c 100644
--- a/Elements/test/SolidTests.cs
+++ b/Elements/test/SolidTests.cs
@@ -2,7 +2,6 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Geometry.Profiles;
-using System.Text.Json.Serialization;
 using Xunit.Abstractions;
 using System.Collections.Generic;
 using System;
@@ -10,7 +9,7 @@
 using Elements.Serialization.glTF;
 using Elements.Serialization.JSON;
 using System.Linq;
-using Newtonsoft.Json;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -196,15 +195,16 @@ public void Serialization()
             var materials = new Dictionary<Guid, Material>();
             var defMaterial = BuiltInMaterials.Default;
             materials.Add(defMaterial.Id, defMaterial);
-            var json = JsonConvert.SerializeObject(solid, new JsonSerializerSettings()
-            {
-                Converters = new[] { new SolidConverter(materials) },
-                Formatting = Formatting.Indented
-            });
-            var newSolid = JsonConvert.DeserializeObject<Solid>(json, new JsonSerializerSettings()
+
+            var options = new JsonSerializerOptions()
             {
-                Converters = new[] { new SolidConverter(materials) }
-            });
+                WriteIndented = true
+            };
+            options.Converters.Add(new SolidConverter());
+
+            var json = JsonSerializer.Serialize(solid, options);
+            var newSolid = JsonSerializer.Deserialize<Solid>(json, options);
+
             Assert.Equal(8, newSolid.Vertices.Count);
             Assert.Equal(12, newSolid.Edges.Count);
             Assert.Equal(6, newSolid.Faces.Count);
@@ -516,7 +516,9 @@ public void SolidPlaneIntersectionTests(string name, string path)
 
             var r = new Random();
 
-            var di = JsonConvert.DeserializeObject<DebugInfo>(File.ReadAllText(path), new[] { new SolidConverter() });
+            var options = new JsonSerializerOptions();
+            options.Converters.Add(new SolidConverter());
+            var di = JsonSerializer.Deserialize<DebugInfo>(File.ReadAllText(path));
             foreach (var solid in di.Solid)
             {
                 Assert.True(di.Plane.Normal.IsUnitized());

From b67e6ce3d2284d99d26f6599acb4364efa12220a Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 25 Apr 2022 21:52:59 -0700
Subject: [PATCH 055/150] Fixed all but 1 solid test.

---
 .../src/Geometry/Solids/ConstructedSolid.cs   |  1 +
 Elements/test/SolidTests.cs                   | 19 +++++++++++++------
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/Elements/src/Geometry/Solids/ConstructedSolid.cs b/Elements/src/Geometry/Solids/ConstructedSolid.cs
index 960a5cc7b..769075869 100644
--- a/Elements/src/Geometry/Solids/ConstructedSolid.cs
+++ b/Elements/src/Geometry/Solids/ConstructedSolid.cs
@@ -1,4 +1,5 @@
 using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements.Geometry.Solids
 {
diff --git a/Elements/test/SolidTests.cs b/Elements/test/SolidTests.cs
index da158c95c..20dfded21 100644
--- a/Elements/test/SolidTests.cs
+++ b/Elements/test/SolidTests.cs
@@ -271,14 +271,21 @@ public void CreateLaminaWithHoles()
         public void ConstructedSolidProducesValidGlb()
         {
             Name = nameof(ConstructedSolidProducesValidGlb);
-            var allPolygons = System.Text.Json.JsonSerializer.Deserialize<List<(Polygon outerLoop, List<Polygon> innerLoops)>>(File.ReadAllText("../../../models/Geometry/ExampleConstructedSolidPolygons.json"));
+
+            var options = new JsonSerializerOptions()
+            {
+                IncludeFields = true
+            };
+            var allPolygons = JsonSerializer.Deserialize<List<(Polygon outerLoop, List<Polygon> innerLoops)>>(File.ReadAllText("../../../models/Geometry/ExampleConstructedSolidPolygons.json"));
             var solid = new Solid();
-            foreach (var face in allPolygons)
+            foreach (var (outerLoop, innerLoops) in allPolygons)
             {
-                solid.AddFace(face.outerLoop, face.innerLoops, true);
+                solid.AddFace(outerLoop, innerLoops, true);
             }
-            var solidOp = new Elements.Geometry.Solids.ConstructedSolid(solid, false);
-            solidOp.LocalTransform = new Transform();
+            var solidOp = new ConstructedSolid(solid, false)
+            {
+                LocalTransform = new Transform()
+            };
             var geoElem = new GeometricElement(new Transform(), BuiltInMaterials.Concrete, new Representation(new[] { solidOp }), false, Guid.NewGuid(), null);
             var model = new Model();
             model.AddElement(geoElem);
@@ -518,7 +525,7 @@ public void SolidPlaneIntersectionTests(string name, string path)
 
             var options = new JsonSerializerOptions();
             options.Converters.Add(new SolidConverter());
-            var di = JsonSerializer.Deserialize<DebugInfo>(File.ReadAllText(path));
+            var di = JsonSerializer.Deserialize<DebugInfo>(File.ReadAllText(path), options);
             foreach (var solid in di.Solid)
             {
                 Assert.True(di.Plane.Normal.IsUnitized());

From 4ddb913b93f98751c89aa9935784970bba45cd21 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 25 Apr 2022 22:00:06 -0700
Subject: [PATCH 056/150] Fix analysis image.

---
 Elements/src/Analysis/AnalysisImage.cs | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/Elements/src/Analysis/AnalysisImage.cs b/Elements/src/Analysis/AnalysisImage.cs
index e20db305a..48f7110a3 100644
--- a/Elements/src/Analysis/AnalysisImage.cs
+++ b/Elements/src/Analysis/AnalysisImage.cs
@@ -5,6 +5,7 @@
 using SixLabors.ImageSharp.PixelFormats;
 
 using System.IO;
+using System.Text.Json.Serialization;
 
 namespace Elements.Analysis
 {
@@ -46,6 +47,15 @@ private static int NextPowerOfTwo(double num)
         private double _numPixelsY;
         private int _imgPixels;
 
+        /// <summary>
+        /// Create an analysis image.
+        /// </summary>
+        [JsonConstructor]
+        public AnalysisImage()
+        {
+
+        }
+
         /// <summary>
         /// An AnalysisImage is similar to an AnalysisMesh in that it renders a mesh with analysis colors.
         /// However, it uses a mapped image texture rather than mesh vertex colors to lighten the resulting geometry.
@@ -69,7 +79,8 @@ public AnalysisImage(Polygon perimeter,
         /// <summary>
         /// Compute a value for each grid cell, and create the required material.
         /// </summary>
-        public override void Analyze() {
+        public override void Analyze()
+        {
             base.Analyze();
 
             _perimBounds = new BBox3(new[] { this.Perimeter });
@@ -132,7 +143,7 @@ public override void Analyze() {
             var imagePath = Path.Combine(Path.GetTempPath(), $"{Guid.NewGuid()}.png");
             image.Save(imagePath);
 
-            this.Material = new Material($"Analysis_{Guid.NewGuid().ToString()}", Colors.White, 0, 0, imagePath, true, true, interpolateTexture:false, id: Guid.NewGuid());
+            this.Material = new Material($"Analysis_{Guid.NewGuid().ToString()}", Colors.White, 0, 0, imagePath, true, true, interpolateTexture: false, id: Guid.NewGuid());
         }
 
         /// <summary>

From c4aafef07928f3794824708e8684088385538cac Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 27 Apr 2022 11:44:30 -0700
Subject: [PATCH 057/150] Fix element instance tests and user element tests.

---
 Elements/src/Serialization/JSON/ElementConverter.cs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 124cf3e12..8cf2aa91c 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -68,14 +68,12 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                     {
                         case CollectionType.List:
                             // At this point we'll be at the start of an array.
-                            reader.Read();
-                            do
+                            while (reader.Read() && reader.TokenType != JsonTokenType.EndArray)
                             {
                                 var id = reader.GetString();
                                 mi.Invoke(elements, new[] { resolver.ResolveReference(id) });
-                                reader.Read();
                             }
-                            while (reader.TokenType != JsonTokenType.EndArray);
+
                             break;
                         case CollectionType.Dictionary:
                             var args = typeToConvert.GetGenericArguments();

From 149409b9a2f50743442e26b0042b3943bb2cefae Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 27 Apr 2022 11:51:16 -0700
Subject: [PATCH 058/150] Remove unused reference.

---
 Elements/src/Serialization/MappingConfiguration.cs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Elements/src/Serialization/MappingConfiguration.cs b/Elements/src/Serialization/MappingConfiguration.cs
index 8f3d8ffd9..5a25af398 100644
--- a/Elements/src/Serialization/MappingConfiguration.cs
+++ b/Elements/src/Serialization/MappingConfiguration.cs
@@ -1,4 +1,3 @@
-using System;
 using System.Collections.Generic;
 using Elements.Geometry;
 

From 5ce74ab2003a6ecd56853cef8089432493ddf587 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 27 Apr 2022 11:52:18 -0700
Subject: [PATCH 059/150] Cleaning up more newtonsoft references.

---
 Elements.Components/src/SpaceConfiguration.cs |  5 ++--
 Elements/src/Geometry/Representation.cs       |  2 +-
 Elements/src/Model.cs                         |  5 +---
 .../Serialization/JSON/AppDomainTypeCache.cs  |  2 +-
 Elements/src/Symbol.cs                        | 27 ++++++++++---------
 5 files changed, 19 insertions(+), 22 deletions(-)

diff --git a/Elements.Components/src/SpaceConfiguration.cs b/Elements.Components/src/SpaceConfiguration.cs
index d6017ca9a..e4fc91d50 100644
--- a/Elements.Components/src/SpaceConfiguration.cs
+++ b/Elements.Components/src/SpaceConfiguration.cs
@@ -2,8 +2,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Elements;
-using Elements.Components;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 
 namespace Elements.Components
@@ -99,7 +98,7 @@ private ContentElement MakeContentElement()
             /// <summary>
             /// The content element corresponding to this item.
             /// </summary>
-            [Newtonsoft.Json.JsonIgnore]
+            [JsonIgnore]
             public ContentElement ContentElement
             {
                 get
diff --git a/Elements/src/Geometry/Representation.cs b/Elements/src/Geometry/Representation.cs
index 8ae0926d8..ebd7e5c40 100644
--- a/Elements/src/Geometry/Representation.cs
+++ b/Elements/src/Geometry/Representation.cs
@@ -45,7 +45,7 @@ public static implicit operator Representation(SolidOperation solidOperation)
         /// A flag to disable CSG operations on this representation. Instead,
         /// all solids will be meshed, and all voids will be ignored.
         /// </summary>
-        [Newtonsoft.Json.JsonIgnore]
+        [JsonIgnore]
         [System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]
         public bool SkipCSGUnion { get; set; } = false;
     }
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index ab88b7379..d5feb3fee 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -42,8 +42,7 @@ public class Model
         /// <param name="origin">The origin of the model.</param>
         /// <param name="transform">The transform of the model.</param>
         /// <param name="elements">A collection of elements.</param>
-        [Newtonsoft.Json.JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
+        [JsonConstructor]
         public Model(Position @origin, Transform @transform, System.Collections.Generic.IDictionary<Guid, Element> @elements)
         {
             this.Origin = @origin;
@@ -233,8 +232,6 @@ public void ToJson(string path, bool gatherSubElements = true)
         {
             var exportModel = CreateExportModel(gatherSubElements);
 
-            // Json.net recommends writing to a stream for anything over 85k to avoid a string on the large object heap.
-            // https://www.newtonsoft.com/json/help/html/Performance.htm
             using (FileStream s = File.Create(path))
             {
                 var serializerOptions = new JsonSerializerOptions();
diff --git a/Elements/src/Serialization/JSON/AppDomainTypeCache.cs b/Elements/src/Serialization/JSON/AppDomainTypeCache.cs
index 61f3a7453..6852387aa 100644
--- a/Elements/src/Serialization/JSON/AppDomainTypeCache.cs
+++ b/Elements/src/Serialization/JSON/AppDomainTypeCache.cs
@@ -25,7 +25,7 @@ internal static Dictionary<string, Type> BuildAppDomainTypeCache(out List<string
 
             failedAssemblyErrors = new List<string>();
 
-            var skipAssembliesPrefices = new[] { "System", "SixLabors", "Newtonsoft" };
+            var skipAssembliesPrefices = new[] { "System", "SixLabors" };
             foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies().Where(a =>
             {
                 var name = a.GetName().Name;
diff --git a/Elements/src/Symbol.cs b/Elements/src/Symbol.cs
index f753452ba..a4db6055a 100644
--- a/Elements/src/Symbol.cs
+++ b/Elements/src/Symbol.cs
@@ -5,8 +5,7 @@
 using System.Net;
 using System.Threading.Tasks;
 using System.Text.Json.Serialization;
-using Newtonsoft.Json.Linq;
-using Newtonsoft.Json;
+using System.Text.Json;
 
 namespace Elements
 {
@@ -23,7 +22,7 @@ public class Symbol
 
         /// <summary>A named camera position for this representation, indicating the direction from which the camera is looking (a top view looks from top down, a north view looks from north to south.)</summary>
         [JsonPropertyName("CameraPosition")]
-        [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
+        [JsonConverter(typeof(JsonStringEnumConverter))]
         public SymbolCameraPosition CameraPosition { get; set; }
 
         /// <summary>
@@ -31,8 +30,7 @@ public class Symbol
         /// </summary>
         /// <param name="geometry">The geometry of the symbol.</param>
         /// <param name="cameraPosition">A named camera position for this representation.</param>
-        [Newtonsoft.Json.JsonConstructor]
-        [System.Text.Json.Serialization.JsonConstructor]
+        [JsonConstructor]
         public Symbol(GeometryReference @geometry, SymbolCameraPosition @cameraPosition)
         {
             this.Geometry = @geometry;
@@ -42,7 +40,6 @@ public Symbol(GeometryReference @geometry, SymbolCameraPosition @cameraPosition)
         /// <summary>
         /// Get the geometry from this symbol.
         /// </summary>
-        /// <returns></returns>
         public async Task<IEnumerable<object>> GetGeometryAsync()
         {
             if (this.Geometry.InternalGeometry != null)
@@ -58,14 +55,18 @@ public async Task<IEnumerable<object>> GetGeometryAsync()
                     var stream = response.GetResponseStream();
                     var streamReader = new StreamReader(stream);
                     var json = streamReader.ReadToEnd();
-                    var objects = JsonConvert.DeserializeObject<List<JObject>>(json);
-                    var loadedTypes = typeof(Element).Assembly.GetTypes().ToList();
-                    return objects.Select(obj =>
+                    using (var doc = JsonDocument.Parse(json))
                     {
-                        var discriminator = obj.Value<string>("discriminator");
-                        var matchingType = loadedTypes.FirstOrDefault(t => t.FullName.Equals(discriminator));
-                        return obj.ToObject(matchingType);
-                    });
+                        var root = doc.RootElement;
+                        var geometry = new List<object>();
+                        var loadedTypes = typeof(Element).Assembly.GetTypes().ToList();
+                        foreach (var obj in root.EnumerateArray())
+                        {
+                            var discriminator = obj.GetProperty("discriminator").GetString();
+                            var matchingType = loadedTypes.FirstOrDefault(t => t.FullName.Equals(discriminator));
+                            root.Deserialize(matchingType);
+                        }
+                    }
                 }
                 catch
                 {

From 0a7952050a18b1eb4b2864447c45f1e5d745f87c Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 27 Apr 2022 12:02:08 -0700
Subject: [PATCH 060/150] Fix color scale tests.

---
 Elements/src/Analysis/ColorScale.cs | 5 ++---
 Elements/src/Math/Domain1d.cs       | 1 +
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Elements/src/Analysis/ColorScale.cs b/Elements/src/Analysis/ColorScale.cs
index 424fda0f7..83ae034a7 100644
--- a/Elements/src/Analysis/ColorScale.cs
+++ b/Elements/src/Analysis/ColorScale.cs
@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using Elements.Geometry;
 using System.Text.Json.Serialization;
-using Elements;
 using System.Linq;
 
 namespace Elements.Analysis
@@ -30,7 +29,7 @@ public class ColorScale
         /// Whether this scale is chunked into discrete bands.
         /// If false, values will be returned in a smooth gradient.
         /// </summary>
-        public Boolean Discrete { get; } = false;
+        public bool Discrete { get; } = false;
 
         /// <summary>
         /// Create a ColorScale from a list of colors. The scale will automatically have a domain from 0 to 1.
@@ -50,7 +49,7 @@ public ColorScale(List<Color> colors)
         /// <param name="discrete">Whether this color scale uses discrete values.</param>
         /// <param name="domains">The domains which the colors map to</param>
         [JsonConstructor]
-        public ColorScale(List<Color> colors, Boolean discrete, List<Domain1d> domains = null)
+        public ColorScale(List<Color> colors, bool discrete, List<Domain1d> domains = null)
         {
             this.Colors = colors;
             this.Discrete = discrete;
diff --git a/Elements/src/Math/Domain1d.cs b/Elements/src/Math/Domain1d.cs
index 691abe145..5d676504e 100644
--- a/Elements/src/Math/Domain1d.cs
+++ b/Elements/src/Math/Domain1d.cs
@@ -53,6 +53,7 @@ internal bool Includes(double value)
         /// </summary>
         /// <param name="min">The lower bound of the domain.</param>
         /// <param name="max">The upper bound of the domain.</param>
+        [JsonConstructor]
         public Domain1d(double min = 0.0, double max = 1.0)
         {
             Min = min;

From 71fcebd8df49fdd95dd8f2eba6e4f9103c8a9523 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 27 Apr 2022 12:54:31 -0700
Subject: [PATCH 061/150] Use the model converter to catch element
 deserialization errors.

---
 Elements/src/Model.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index d5feb3fee..7b5a49e75 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -34,7 +34,7 @@ public class Model
         /// <summary>A collection of Elements keyed by their identifiers.</summary>
         [JsonPropertyName("Elements")]
         [System.ComponentModel.DataAnnotations.Required]
-        public System.Collections.Generic.IDictionary<Guid, Element> Elements { get; set; } = new System.Collections.Generic.Dictionary<Guid, Element>();
+        public IDictionary<Guid, Element> Elements { get; set; } = new System.Collections.Generic.Dictionary<Guid, Element>();
 
         /// <summary>
         /// Construct a model.
@@ -290,7 +290,7 @@ public static Model FromJson(string json)
 
                 // Use the model converter here so that we have a chance to 
                 // intercept the creation of elements when things go wrong.
-                // options.Converters.Add(new ModelConverter());
+                options.Converters.Add(new ModelConverter());
 
                 model = JsonSerializer.Deserialize<Model>(json, options);
 

From d9b7e8ad81a7fd994d27230aaf6f967fd19745b2 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 27 Apr 2022 12:55:36 -0700
Subject: [PATCH 062/150] Skip this test due to behavior change.

---
 Elements/test/ModelTests.cs | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index 21d997dc2..d92c952f8 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -218,7 +218,14 @@ public void DeserializationConstructsWithMissingProperties()
             Assert.Equal(Vector3.Origin, newColumn.Location);
         }
 
-        [Fact]
+        // With the move to System.Text.Json, this test is no longer valid.
+        // Previously we skipped elements that had properties that could not
+        // be converted to null. System.text.json handles this condition
+        // by using the default value. In this example, the column location
+        // is set to null in the json, but deserializes to (0,0,0), which is
+        // valid. This is a nicer way of handling this condition than not 
+        // creating an element at all.
+        [Fact(Skip = "Outdated")]
         public void DeserializationSkipsNullProperties()
         {
             var column = new Column(new Vector3(5, 0), 5, new Profile(Polygon.Rectangle(1, 1)));
@@ -227,13 +234,15 @@ public void DeserializationSkipsNullProperties()
             var json = model.ToJson(true);
 
             // https://www.newtonsoft.com/json/help/html/ModifyJson.htm
-            var obj = JObject.Parse(json);
-            var elements = obj["Elements"];
-            var c = (JObject)elements.Values().ElementAt(2); // the column
-            // Nullify a property.
-            c.Property("Location").Value = null;
+            // var obj = JObject.Parse(json);
+            using var doc = JsonDocument.Parse(json);
+
+            var obj = doc.RootElement.Clone();
+            var elements = obj.GetProperty("Elements").EnumerateObject();
+            var c = elements.ElementAt(2).Value; // the column
 
             var newModel = Model.FromJson(obj.ToString());
+
             Assert.Empty(newModel.AllElementsOfType<Column>());
         }
 

From 559a35fce05add0cf74a675d9351e9c7474084ca Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 29 Apr 2022 11:02:19 -0400
Subject: [PATCH 063/150] Fix grid tests.

---
 Elements/src/Spatial/Grid1d.cs | 11 ++++++-----
 Elements/src/Spatial/Grid2d.cs | 35 +++++++++++++++++++++++-----------
 Elements/test/Grid2dTests.cs   |  3 +--
 3 files changed, 31 insertions(+), 18 deletions(-)

diff --git a/Elements/src/Spatial/Grid1d.cs b/Elements/src/Spatial/Grid1d.cs
index 12e93d42a..1fdd3f7dd 100644
--- a/Elements/src/Spatial/Grid1d.cs
+++ b/Elements/src/Spatial/Grid1d.cs
@@ -14,7 +14,6 @@ namespace Elements.Spatial
     /// <example>
     /// [!code-csharp[Main](../../Elements/test/Grid1dTests.cs?name=example)]
     /// </example>
-    [JsonConverter(typeof(ElementConverter<Grid1d>))]
     public class Grid1d
     {
         #region Properties
@@ -27,11 +26,10 @@ public class Grid1d
         /// <summary>
         /// Child cells of this Grid. If null, this Grid is a complete cell with no subdivisions.
         /// </summary>
-        [JsonPropertyName("Cells")]
         public List<Grid1d> Cells
         {
             get => cells;
-            private set
+            set
             {
                 if (this.parent != null)
                 {
@@ -45,6 +43,7 @@ private set
         /// <summary>
         /// Numerical domain of this Grid
         /// </summary>
+        [JsonInclude]
         public Domain1d Domain { get; }
 
         /// <summary>
@@ -90,8 +89,9 @@ public Curve Curve
         // we have to maintain an internal curve domain because subsequent subdivisions of a grid
         // based on a curve retain the entire curve; this domain allows us to map from the subdivided
         // domain back to the original curve.
+        [JsonInclude]
         [JsonPropertyName("CurveDomain")]
-        internal readonly Domain1d curveDomain;
+        public readonly Domain1d curveDomain;
 
         // if this 1d grid is the axis of a 2d grid, this is where we store that reference. If not, it will be null
         private Grid2d parent;
@@ -100,8 +100,9 @@ public Curve Curve
         // is useful in serialization so we only store the base curve once. 
         private Grid1d topLevelParentGrid;
 
+        [JsonInclude]
         [JsonPropertyName("TopLevelParentCurve")]
-        private Curve topLevelParentCurve
+        public Curve topLevelParentCurve
         {
             get
             {
diff --git a/Elements/src/Spatial/Grid2d.cs b/Elements/src/Spatial/Grid2d.cs
index 06266500a..ee7ddc59f 100644
--- a/Elements/src/Spatial/Grid2d.cs
+++ b/Elements/src/Spatial/Grid2d.cs
@@ -14,7 +14,6 @@ namespace Elements.Spatial
     /// <example>
     /// [!code-csharp[Main](../../Elements/test/Grid2dTests.cs?name=example)]
     /// </example>
-    [JsonConverter(typeof(ElementConverter<Grid2d>))]
     public class Grid2d
     {
         #region Properties
@@ -28,11 +27,13 @@ public class Grid2d
         /// <summary>
         /// The 1d Grid along the U dimension
         /// </summary>
+        [JsonInclude]
         public Grid1d U { get; private set; }
 
         /// <summary>
         /// The 1d grid along the V dimension
         /// </summary>
+        [JsonInclude]
         public Grid1d V { get; private set; }
 
         /// <summary>
@@ -50,30 +51,34 @@ public string Type
         /// <summary>
         /// A transform from grid space to world space
         /// </summary>
+        [JsonInclude]
         [JsonPropertyName("FromGrid")]
-        internal Transform fromGrid = new Transform();
+        public Transform fromGrid = new Transform();
 
         /// <summary>
         /// A transform from world space to grid space
         /// </summary>
+        [JsonInclude]
         [JsonPropertyName("ToGrid")]
-        internal Transform toGrid = new Transform();
+        public Transform toGrid = new Transform();
 
-        [JsonPropertyName("UDomainInternal")]
-        private Domain1d UDomainInternal = new Domain1d(0, 0);
+        [JsonInclude]
+        public Domain1d UDomainInternal = new Domain1d(0, 0);
 
-        [JsonPropertyName("VDomainInternal")]
-        private Domain1d VDomainInternal = new Domain1d(0, 0);
+        [JsonInclude]
+        public Domain1d VDomainInternal = new Domain1d(0, 0);
 
         /// <summary>
         /// Any boundary curves, transformed to grid space.
         /// </summary>
+        [JsonInclude]
         [JsonPropertyName("BoundariesInGridSpace")]
-        private IList<Polygon> boundariesInGridSpace;
+        public IList<Polygon> boundariesInGridSpace;
+
         private List<List<Grid2d>> cells;
 
-        [JsonPropertyName("ModifiedChildCells")]
-        internal List<IndexedCell> ModifiedChildCells => GetModifiedChildCells();
+        [JsonInclude]
+        public List<IndexedCell> ModifiedChildCells => GetModifiedChildCells();
 
         // for serialization purposes, we store only those cells that are not a natural consequence of the U and V 1d grids composing this grid.
         private List<IndexedCell> GetModifiedChildCells()
@@ -162,7 +167,15 @@ public Grid2d()
         /// <returns></returns>
         [JsonConstructor]
         [System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]
-        public Grid2d(Transform fromGrid, Transform toGrid, Domain1d uDomainInternal, Domain1d vDomainInternal, List<Polygon> boundariesInGridSpace, Grid1d u, Grid1d v, string type, List<IndexedCell> modifiedChildCells)
+        public Grid2d(Transform fromGrid,
+                      Transform toGrid,
+                      Domain1d uDomainInternal,
+                      Domain1d vDomainInternal,
+                      IList<Polygon> boundariesInGridSpace,
+                      Grid1d u,
+                      Grid1d v,
+                      string type,
+                      List<IndexedCell> modifiedChildCells)
         {
             this.fromGrid = fromGrid;
             this.toGrid = toGrid;
diff --git a/Elements/test/Grid2dTests.cs b/Elements/test/Grid2dTests.cs
index 2f1871d52..07bcb5f09 100644
--- a/Elements/test/Grid2dTests.cs
+++ b/Elements/test/Grid2dTests.cs
@@ -3,7 +3,6 @@
 using System.Linq;
 using Elements.Spatial;
 using Xunit;
-using System.Text.Json.Serialization;
 using Elements.Geometry;
 using System.Collections.Generic;
 using System.Text.Json;
@@ -198,7 +197,7 @@ public void Grid2dSerializes()
             grid2d.V.DivideByCount(3);
             grid2d[2, 2].U.DivideByCount(4);
             var json = JsonSerializer.Serialize(grid2d);
-            var deserialized = JsonSerializer.Deserialize<Grid2d>(json);
+            var deserialized = Element.Deserialize<Grid2d>(json);
             Assert.Equal(grid2d.GetCells().Count, deserialized.GetCells().Count);
 
             var grid2dElem = new Grid2dElement(grid2d, Guid.NewGuid(), "Grid");

From 897859b4cba1a47ed2b2bc5cb5e3397cd6e64e65 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 29 Apr 2022 11:13:24 -0400
Subject: [PATCH 064/150] Cleanup adaptive grid.

---
 .../src/Spatial/AdaptiveGrid/AdaptiveGrid.cs  | 28 +++++++++----------
 Elements/test/AdaptiveGridTests.cs            |  3 --
 2 files changed, 14 insertions(+), 17 deletions(-)

diff --git a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
index 4540a08e2..645f44893 100644
--- a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
+++ b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
@@ -1,8 +1,8 @@
 using Elements.Geometry;
-using System.Text.Json.Serialization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 
 namespace Elements.Spatial.AdaptiveGrid
 {
@@ -26,14 +26,14 @@ public class AdaptiveGrid
         /// <summary>
         /// Vertices by ID.
         /// </summary>
-        [JsonPropertyName("_vertices")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public Dictionary<ulong, Vertex> Vertices = new Dictionary<ulong, Vertex>();
+        [JsonInclude]
+        private Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
 
         /// <summary>
         /// Edges by ID.
         /// </summary>
-        [JsonPropertyName("_edges")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public Dictionary<ulong, Edge> Edges = new Dictionary<ulong, Edge>();
+        [JsonInclude]
+        private Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
 
         // See Edge.GetHash for how edges are identified as unique.
         private Dictionary<string, ulong> _edgesLookup = new Dictionary<string, ulong>();
@@ -261,7 +261,7 @@ public void SubtractBox(BBox3 box)
         /// <returns></returns>
         public Vertex GetVertex(ulong vertexId)
         {
-            this.Vertices.TryGetValue(vertexId, out var vertex);
+            this._vertices.TryGetValue(vertexId, out var vertex);
             return vertex;
         }
 
@@ -271,7 +271,7 @@ public Vertex GetVertex(ulong vertexId)
         /// <returns></returns>
         public List<Vertex> GetVertices()
         {
-            return this.Vertices.Values.ToList();
+            return this._vertices.Values.ToList();
         }
 
         /// <summary>
@@ -280,7 +280,7 @@ public List<Vertex> GetVertices()
         /// <returns></returns>
         public List<Edge> GetEdges()
         {
-            return this.Edges.Values.ToList();
+            return this._edges.Values.ToList();
         }
 
         /// <summary>
@@ -466,7 +466,7 @@ public Edge AddEdge(ulong vertexId1, ulong vertexId2)
                 edgeId = edge.Id;
 
                 this._edgesLookup[hash] = edgeId;
-                this.Edges.Add(edgeId, edge);
+                this._edges.Add(edgeId, edge);
 
                 this.GetVertex(edge.StartId).Edges.Add(edge);
                 this.GetVertex(edge.EndId).Edges.Add(edge);
@@ -476,7 +476,7 @@ public Edge AddEdge(ulong vertexId1, ulong vertexId2)
             }
             else
             {
-                this.Edges.TryGetValue(edgeId, out var edge);
+                this._edges.TryGetValue(edgeId, out var edge);
                 return edge;
             }
         }
@@ -511,7 +511,7 @@ public void RemoveEdge(Edge edge)
         {
             var hash = Edge.GetHash(new List<ulong> { edge.StartId, edge.EndId });
             this._edgesLookup.Remove(hash);
-            this.Edges.Remove(edge.Id);
+            this._edges.Remove(edge.Id);
 
             var startVertexEdges = this.GetVertex(edge.StartId).Edges;
             startVertexEdges.Remove(edge);
@@ -545,7 +545,7 @@ private Vertex AddVertex(Vector3 point)
                 id = this._vertexId;
                 var vertex = new Vertex(id, point);
                 zDict[point.Z] = id;
-                Vertices[id] = vertex;
+                _vertices[id] = vertex;
                 this._vertexId++;
             }
 
@@ -554,8 +554,8 @@ private Vertex AddVertex(Vector3 point)
 
         private void DeleteVertex(ulong id)
         {
-            var vertex = Vertices[id];
-            Vertices.Remove(id);
+            var vertex = _vertices[id];
+            _vertices.Remove(id);
             var zDict = GetAddressParent(_verticesLookup, vertex.Point, tolerance: Tolerance);
             if (zDict == null)
             {
diff --git a/Elements/test/AdaptiveGridTests.cs b/Elements/test/AdaptiveGridTests.cs
index ca28247f3..94bb7f329 100644
--- a/Elements/test/AdaptiveGridTests.cs
+++ b/Elements/test/AdaptiveGridTests.cs
@@ -1,11 +1,8 @@
 using Elements.Geometry;
 using Elements.Spatial.AdaptiveGrid;
-using Elements.Tests;
 using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Linq;
-using System.Text;
 using Xunit;
 using Vertex = Elements.Spatial.AdaptiveGrid.Vertex;
 

From e42560dcff1e9a02b39477fc1191fd84f6d2b08d Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 29 Apr 2022 11:16:49 -0400
Subject: [PATCH 065/150] Clean up cell complex.

---
 .../src/Spatial/CellComplex/CellComplex.cs    | 68 +++++++++----------
 Elements/src/Spatial/CellComplex/Face.cs      | 18 ++---
 2 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/Elements/src/Spatial/CellComplex/CellComplex.cs b/Elements/src/Spatial/CellComplex/CellComplex.cs
index 36769812b..22ca94bdc 100644
--- a/Elements/src/Spatial/CellComplex/CellComplex.cs
+++ b/Elements/src/Spatial/CellComplex/CellComplex.cs
@@ -1,8 +1,8 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Elements.Geometry;
 using System.Text.Json.Serialization;
+using Elements.Geometry;
 
 namespace Elements.Spatial.CellComplex
 {
@@ -35,38 +35,38 @@ public class CellComplex : Elements.Element
         /// <summary>
         /// Vertices by ID.
         /// </summary>
-        [JsonPropertyName("_vertices")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public Dictionary<ulong, Vertex> Vertices = new Dictionary<ulong, Vertex>();
+        [JsonInclude]
+        private Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
 
         /// <summary>
         /// U or V directions by ID.
         /// </summary>
-        [JsonPropertyName("_orientations")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public Dictionary<ulong, Orientation> Orientations = new Dictionary<ulong, Orientation>();
+        [JsonInclude]
+        private Dictionary<ulong, Orientation> _orientations = new Dictionary<ulong, Orientation>();
 
         /// <summary>
         /// Edges by ID.
         /// </summary>
-        [JsonPropertyName("_edges")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public Dictionary<ulong, Edge> Edges = new Dictionary<ulong, Edge>();
+        [JsonInclude]
+        private Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
 
         /// <summary>
         /// DirectedEdges by ID.
         /// </summary>
-        [JsonPropertyName("_directedEdges")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public Dictionary<ulong, DirectedEdge> DirectedEdges = new Dictionary<ulong, DirectedEdge>();
+        [JsonInclude]
+        private Dictionary<ulong, DirectedEdge> _directedEdges = new Dictionary<ulong, DirectedEdge>();
 
         /// <summary>
         /// Faces by ID.
         /// </summary>
-        [JsonPropertyName("_faces")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public Dictionary<ulong, Face> Faces = new Dictionary<ulong, Face>();
+        [JsonInclude]
+        private Dictionary<ulong, Face> _faces = new Dictionary<ulong, Face>();
 
         /// <summary>
         /// Cells by ID.
         /// </summary>
-        [JsonPropertyName("_cells")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public Dictionary<ulong, Cell> Cells = new Dictionary<ulong, Cell>();
+        [JsonInclude]
+        private Dictionary<ulong, Cell> _cells = new Dictionary<ulong, Cell>();
 
         // Vertex lookup by x, y, z coordinate.
         private Dictionary<double, Dictionary<double, Dictionary<double, ulong>>> _verticesLookup = new Dictionary<double, Dictionary<double, Dictionary<double, ulong>>>();
@@ -257,14 +257,14 @@ private DirectedEdge AddDirectedEdge(Line line)
         /// <returns>Whether the cell was successfully added. Will be false if cellId already exists.</returns>
         private Boolean AddCell(ulong cellId, List<Face> faces, Face bottomFace, Face topFace, out Cell cell)
         {
-            if (this.Cells.ContainsKey(cellId))
+            if (this._cells.ContainsKey(cellId))
             {
                 cell = null;
                 return false;
             }
 
             cell = new Cell(this, cellId, faces, bottomFace, topFace);
-            this.Cells.Add(cell.Id, cell);
+            this._cells.Add(cell.Id, cell);
 
             foreach (var face in faces)
             {
@@ -300,7 +300,7 @@ private Boolean AddFace(Polygon polygon, ulong idIfNew, Orientation u, Orientati
                 face = new Face(this, idIfNew, directedEdges, u, v);
                 faceId = face.Id;
                 this._facesLookup.Add(hash, faceId);
-                this.Faces.Add(faceId, face);
+                this._faces.Add(faceId, face);
 
                 foreach (var directedEdge in directedEdges)
                 {
@@ -312,7 +312,7 @@ private Boolean AddFace(Polygon polygon, ulong idIfNew, Orientation u, Orientati
             }
             else
             {
-                this.Faces.TryGetValue(faceId, out face);
+                this._faces.TryGetValue(faceId, out face);
                 return false;
             }
         }
@@ -341,7 +341,7 @@ private Boolean AddDirectedEdge(Edge edge, Boolean edgeTupleIsInOrder, ulong idI
                 directedEdgeId = directedEdge.Id;
 
                 directedEdgeDict.Add(edgeTupleIsInOrder, directedEdgeId);
-                this.DirectedEdges.Add(directedEdgeId, directedEdge);
+                this._directedEdges.Add(directedEdgeId, directedEdge);
 
                 edge.DirectedEdges.Add(directedEdge);
 
@@ -351,7 +351,7 @@ private Boolean AddDirectedEdge(Edge edge, Boolean edgeTupleIsInOrder, ulong idI
             }
             else
             {
-                this.DirectedEdges.TryGetValue(directedEdgeId, out directedEdge);
+                this._directedEdges.TryGetValue(directedEdgeId, out directedEdge);
 
                 return false;
             }
@@ -374,7 +374,7 @@ private Boolean AddEdge(List<ulong> vertexIds, ulong idIfNew, out Edge edge)
                 edgeId = edge.Id;
 
                 this._edgesLookup[hash] = edgeId;
-                this.Edges.Add(edgeId, edge);
+                this._edges.Add(edgeId, edge);
 
                 this.GetVertex(edge.StartVertexId).Edges.Add(edge);
                 this.GetVertex(edge.EndVertexId).Edges.Add(edge);
@@ -385,7 +385,7 @@ private Boolean AddEdge(List<ulong> vertexIds, ulong idIfNew, out Edge edge)
             }
             else
             {
-                this.Edges.TryGetValue(edgeId, out edge);
+                this._edges.TryGetValue(edgeId, out edge);
                 return false;
             }
         }
@@ -401,7 +401,7 @@ private Dictionary<ulong, T> GetVertexOrOrientationDictionary<T>() where T : Ver
             {
                 throw new Exception("Unsupported type provided, expected Vertex or Orientation");
             }
-            return typeof(T) == typeof(Orientation) ? this.Orientations as Dictionary<ulong, T> : this.Vertices as Dictionary<ulong, T>;
+            return typeof(T) == typeof(Orientation) ? this._orientations as Dictionary<ulong, T> : this._vertices as Dictionary<ulong, T>;
         }
 
         /// <summary>
@@ -496,7 +496,7 @@ private Boolean AddVertexOrOrientation<T>(Vector3 point, ulong idIfNew, out ulon
         /// <returns></returns>
         public Vertex GetVertex(ulong vertexId)
         {
-            this.Vertices.TryGetValue(vertexId, out var vertex);
+            this._vertices.TryGetValue(vertexId, out var vertex);
             return vertex;
         }
 
@@ -506,7 +506,7 @@ public Vertex GetVertex(ulong vertexId)
         /// <returns></returns>
         public List<Vertex> GetVertices()
         {
-            return this.Vertices.Values.ToList();
+            return this._vertices.Values.ToList();
         }
 
         /// <summary>
@@ -520,7 +520,7 @@ public Orientation GetOrientation(ulong? orientationId)
             {
                 return null;
             }
-            this.Orientations.TryGetValue((ulong)orientationId, out var orientation);
+            this._orientations.TryGetValue((ulong)orientationId, out var orientation);
             return orientation;
         }
 
@@ -530,7 +530,7 @@ public Orientation GetOrientation(ulong? orientationId)
         /// <returns></returns>
         internal List<Orientation> GetOrientations()
         {
-            return this.Orientations.Values.ToList();
+            return this._orientations.Values.ToList();
         }
 
         /// <summary>
@@ -540,7 +540,7 @@ internal List<Orientation> GetOrientations()
         /// <returns></returns>
         public Edge GetEdge(ulong edgeId)
         {
-            this.Edges.TryGetValue(edgeId, out var edge);
+            this._edges.TryGetValue(edgeId, out var edge);
             return edge;
         }
 
@@ -550,7 +550,7 @@ public Edge GetEdge(ulong edgeId)
         /// <returns></returns>
         public List<Edge> GetEdges()
         {
-            return this.Edges.Values.ToList();
+            return this._edges.Values.ToList();
         }
 
         /// <summary>
@@ -564,7 +564,7 @@ public Face GetFace(ulong? faceId)
             {
                 return null;
             }
-            this.Faces.TryGetValue((ulong)faceId, out var face);
+            this._faces.TryGetValue((ulong)faceId, out var face);
             return face;
         }
 
@@ -574,7 +574,7 @@ public Face GetFace(ulong? faceId)
         /// <returns></returns>
         public List<Face> GetFaces()
         {
-            return this.Faces.Values.ToList();
+            return this._faces.Values.ToList();
         }
 
         /// <summary>
@@ -584,7 +584,7 @@ public List<Face> GetFaces()
         /// <returns></returns>
         public Cell GetCell(ulong cellId)
         {
-            this.Cells.TryGetValue(cellId, out var cell);
+            this._cells.TryGetValue(cellId, out var cell);
             return cell;
         }
 
@@ -594,7 +594,7 @@ public Cell GetCell(ulong cellId)
         /// <returns></returns>
         public List<Cell> GetCells()
         {
-            return this.Cells.Values.ToList();
+            return this._cells.Values.ToList();
         }
 
         /// <summary>
@@ -644,7 +644,7 @@ public Cell GetClosestCell(Vector3 point)
         /// <returns></returns>
         internal DirectedEdge GetDirectedEdge(ulong directedEdgeId)
         {
-            this.DirectedEdges.TryGetValue(directedEdgeId, out var directedEdge);
+            this._directedEdges.TryGetValue(directedEdgeId, out var directedEdge);
             return directedEdge;
         }
 
@@ -654,7 +654,7 @@ internal DirectedEdge GetDirectedEdge(ulong directedEdgeId)
         /// <returns></returns>
         internal List<DirectedEdge> GetDirectedEdges()
         {
-            return this.DirectedEdges.Values.ToList();
+            return this._directedEdges.Values.ToList();
         }
 
         /// <summary>
diff --git a/Elements/src/Spatial/CellComplex/Face.cs b/Elements/src/Spatial/CellComplex/Face.cs
index 5e5952594..e01e4d866 100644
--- a/Elements/src/Spatial/CellComplex/Face.cs
+++ b/Elements/src/Spatial/CellComplex/Face.cs
@@ -19,14 +19,14 @@ public class Face : ChildBase<Face, Polygon>, Interfaces.IHasNeighbors<Face, Pol
         /// <summary>
         /// ID of U orientation.
         /// </summary>
-        [JsonPropertyName("_orientationUId")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public ulong? OrientationUId;
+        [JsonInclude]
+        private ulong? _orientationUId;
 
         /// <summary>
         /// ID of V orientation.
         /// </summary>
-        [JsonPropertyName("_orientationVId")] // TODO: Backwards serialization capability. Update to align with property name in future.
-        public ulong? OrientationVId;
+        [JsonInclude]
+        private ulong? _orientationVId;
 
         /// <summary>
         /// Cells that reference this Face.
@@ -48,11 +48,11 @@ internal Face(CellComplex cellComplex, ulong id, List<DirectedEdge> directedEdge
             this.DirectedEdgeIds = directedEdges.Select(ds => ds.Id).ToList();
             if (u != null)
             {
-                this.OrientationUId = u.Id;
+                this._orientationUId = u.Id;
             }
             if (v != null)
             {
-                this.OrientationVId = v.Id;
+                this._orientationVId = v.Id;
             }
         }
 
@@ -64,8 +64,8 @@ internal Face(ulong id, List<ulong> directedEdgeIds, ulong? _orientationUId = nu
         {
             this.Id = id;
             this.DirectedEdgeIds = directedEdgeIds;
-            this.OrientationUId = _orientationUId;
-            this.OrientationVId = _orientationVId;
+            this._orientationUId = _orientationUId;
+            this._orientationVId = _orientationVId;
         }
 
         /// <summary>
@@ -192,7 +192,7 @@ public Cell GetClosestCell(Vector3 point)
         /// <returns></returns>
         public (Orientation U, Orientation V) GetOrientation()
         {
-            return (U: this.CellComplex.GetOrientation(this.OrientationUId), V: this.CellComplex.GetOrientation(this.OrientationVId));
+            return (U: this.CellComplex.GetOrientation(this._orientationUId), V: this.CellComplex.GetOrientation(this._orientationVId));
         }
 
         /// <summary>

From 5045bdb37b2809171cfc370ddd3da4b91f6114e8 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 29 Apr 2022 11:25:48 -0400
Subject: [PATCH 066/150] Don't use JsonPropertyName unless neccessary.

---
 Elements/src/ContentCatalog.cs                 |  2 --
 Elements/src/ContentElement.cs                 |  3 ---
 Elements/src/Element.cs                        |  2 --
 Elements/src/GeometricElement.cs               |  4 ----
 Elements/src/Geometry/Arc.cs                   |  4 ----
 Elements/src/Geometry/BBox3.cs                 |  2 --
 Elements/src/Geometry/Color.cs                 |  4 ----
 Elements/src/Geometry/Line.cs                  |  2 --
 Elements/src/Geometry/Matrix.cs                |  1 -
 Elements/src/Geometry/Mesh.cs                  |  2 --
 Elements/src/Geometry/Plane.cs                 |  2 --
 Elements/src/Geometry/Polyline.cs              |  1 -
 Elements/src/Geometry/Profile.cs               |  2 --
 Elements/src/Geometry/Representation.cs        |  1 -
 Elements/src/Geometry/Solids/Extrude.cs        |  3 ---
 Elements/src/Geometry/Solids/Lamina.cs         |  2 --
 Elements/src/Geometry/Solids/SolidOperation.cs |  1 -
 Elements/src/Geometry/Solids/Sweep.cs          |  5 -----
 Elements/src/Geometry/Transform.cs             |  1 -
 Elements/src/Geometry/Triangle.cs              |  2 --
 Elements/src/Geometry/UV.cs                    |  2 --
 Elements/src/Geometry/Vector3.cs               |  3 ---
 Elements/src/Geometry/Vertex.cs                |  6 ------
 Elements/src/GeometryReference.cs              |  2 --
 Elements/src/Material.cs                       | 11 -----------
 Elements/src/Model.cs                          |  3 ---
 Elements/src/Symbol.cs                         |  2 --
 Elements/src/WallByProfile.cs                  |  3 ---
 Elements/test/Grid2dElement.cs                 |  1 -
 Elements/test/MeshTests.cs                     |  1 -
 30 files changed, 80 deletions(-)

diff --git a/Elements/src/ContentCatalog.cs b/Elements/src/ContentCatalog.cs
index c3c890abc..76cc147e6 100644
--- a/Elements/src/ContentCatalog.cs
+++ b/Elements/src/ContentCatalog.cs
@@ -12,12 +12,10 @@ namespace Elements
     public class ContentCatalog : Element
     {
         /// <summary>The content elements in this catalog.</summary>
-        [JsonPropertyName("Content")]
         [System.ComponentModel.DataAnnotations.Required]
         public IList<ContentElement> Content { get; set; } = new List<ContentElement>();
 
         /// <summary>An example arrangement of the elements contained in this catalog.</summary>
-        [JsonPropertyName("ReferenceConfiguration")]
         public IList<Element> ReferenceConfiguration { get; set; }
 
         /// <summary>
diff --git a/Elements/src/ContentElement.cs b/Elements/src/ContentElement.cs
index 9afac50d0..6db21412e 100644
--- a/Elements/src/ContentElement.cs
+++ b/Elements/src/ContentElement.cs
@@ -17,7 +17,6 @@ public class ContentElement : GeometricElement
         public string GltfLocation { get; set; }
 
         /// <summary>The bounding box of the content.</summary>
-        [JsonPropertyName("Bounding Box")]
         public BBox3 BoundingBox { get; set; }
 
         /// <summary>The scale needed to convert the gltf to meters.</summary>
@@ -25,11 +24,9 @@ public class ContentElement : GeometricElement
         public double GltfScaleToMeters { get; set; }
 
         /// <summary>A vector indicating the direction the source object was originally facing.</summary>
-        [JsonPropertyName("SourceDirection")]
         public Vector3 SourceDirection { get; set; }
 
         /// <summary>Alternate symbolic representations of the object.</summary>
-        [JsonPropertyName("Symbols")]
         public IList<Symbol> Symbols { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index 85227ca4c..d84162acf 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -32,7 +32,6 @@ public abstract class Element : System.ComponentModel.INotifyPropertyChanged
         }
 
         /// <summary>A unique id.</summary>
-        [JsonPropertyName("Id")]
         [System.ComponentModel.DataAnnotations.Required(AllowEmptyStrings = true)]
         public System.Guid Id
         {
@@ -48,7 +47,6 @@ public System.Guid Id
         }
 
         /// <summary>A name.</summary>
-        [JsonPropertyName("Name")]
         public string Name
         {
             get { return _name; }
diff --git a/Elements/src/GeometricElement.cs b/Elements/src/GeometricElement.cs
index a179ff097..724916ef9 100644
--- a/Elements/src/GeometricElement.cs
+++ b/Elements/src/GeometricElement.cs
@@ -15,20 +15,16 @@ namespace Elements
     public class GeometricElement : Element
     {
         /// <summary>The element's transform.</summary>
-        [JsonPropertyName("Transform")]
         public Transform Transform { get; set; }
 
         /// <summary>The element's material.</summary>
-        [JsonPropertyName("Material")]
         [JsonConverter(typeof(ElementConverter<Material>))]
         public Material Material { get; set; }
 
         /// <summary>The element's representation.</summary>
-        [JsonPropertyName("Representation")]
         public Representation Representation { get; set; }
 
         /// <summary>When true, this element will act as the base definition for element instances, and will not appear in visual output.</summary>
-        [JsonPropertyName("IsElementDefinition")]
         public bool IsElementDefinition { get; set; } = false;
 
         /// <summary>
diff --git a/Elements/src/Geometry/Arc.cs b/Elements/src/Geometry/Arc.cs
index f0541cb30..54397b6aa 100644
--- a/Elements/src/Geometry/Arc.cs
+++ b/Elements/src/Geometry/Arc.cs
@@ -14,21 +14,17 @@ namespace Elements.Geometry
     public partial class Arc : Curve, IEquatable<Arc>
     {
         /// <summary>The center of the arc.</summary>
-        [JsonPropertyName("Center")]
         public Vector3 Center { get; set; }
 
         /// <summary>The radius of the arc.</summary>
-        [JsonPropertyName("Radius")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, double.MaxValue)]
         public double Radius { get; set; }
 
         /// <summary>The angle from 0.0, in degrees, at which the arc will start with respect to the positive X axis.</summary>
-        [JsonPropertyName("StartAngle")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 360.0D)]
         public double StartAngle { get; set; }
 
         /// <summary>The angle from 0.0, in degrees, at which the arc will end with respect to the positive X axis.</summary>
-        [JsonPropertyName("EndAngle")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 360.0D)]
         public double EndAngle { get; set; }
 
diff --git a/Elements/src/Geometry/BBox3.cs b/Elements/src/Geometry/BBox3.cs
index b6b760dd5..b63968cc6 100644
--- a/Elements/src/Geometry/BBox3.cs
+++ b/Elements/src/Geometry/BBox3.cs
@@ -13,11 +13,9 @@ namespace Elements.Geometry
     public struct BBox3
     {
         /// <summary>The minimum extent of the bounding box.</summary>
-        [JsonPropertyName("Min")]
         public Vector3 Min { get; set; }
 
         /// <summary>The maximum extent of the bounding box.</summary>
-        [JsonPropertyName("Max")]
         public Vector3 Max { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Color.cs b/Elements/src/Geometry/Color.cs
index 9e81bb714..d18202cb8 100644
--- a/Elements/src/Geometry/Color.cs
+++ b/Elements/src/Geometry/Color.cs
@@ -9,22 +9,18 @@ namespace Elements.Geometry
     public struct Color : IEquatable<Color>
     {
         /// <summary>The red component of the color between 0.0 and 1.0.</summary>
-        [JsonPropertyName("Red")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double Red { get; set; }
 
         /// <summary>The green component of the color between 0.0 and 1.0.</summary>
-        [JsonPropertyName("Green")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double Green { get; set; }
 
         /// <summary>The blue component of the color between 0.0 and 1.0.</summary>
-        [JsonPropertyName("Blue")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double Blue { get; set; }
 
         /// <summary>The alpha component of the color between 0.0 and 1.0.</summary>
-        [JsonPropertyName("Alpha")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double Alpha { get; set; }
 
diff --git a/Elements/src/Geometry/Line.cs b/Elements/src/Geometry/Line.cs
index e777e4d16..ab8e3bf4d 100644
--- a/Elements/src/Geometry/Line.cs
+++ b/Elements/src/Geometry/Line.cs
@@ -17,11 +17,9 @@ namespace Elements.Geometry
     public class Line : Curve, IEquatable<Line>
     {
         /// <summary>The start of the line.</summary>
-        [JsonPropertyName("Start")]
         public Vector3 Start { get; set; }
 
         /// <summary>The end of the line.</summary>
-        [JsonPropertyName("End")]
         public Vector3 End { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Matrix.cs b/Elements/src/Geometry/Matrix.cs
index c2eb81a2e..77c4bc722 100644
--- a/Elements/src/Geometry/Matrix.cs
+++ b/Elements/src/Geometry/Matrix.cs
@@ -12,7 +12,6 @@ namespace Elements.Geometry
     public partial class Matrix : IEquatable<Matrix>
     {
         /// <summary>The components of the matrix.</summary>
-        [JsonPropertyName("Components")]
         [System.ComponentModel.DataAnnotations.Required]
         [System.ComponentModel.DataAnnotations.MinLength(12)]
         [System.ComponentModel.DataAnnotations.MaxLength(12)]
diff --git a/Elements/src/Geometry/Mesh.cs b/Elements/src/Geometry/Mesh.cs
index 0b17a2e6d..3167407e8 100644
--- a/Elements/src/Geometry/Mesh.cs
+++ b/Elements/src/Geometry/Mesh.cs
@@ -19,11 +19,9 @@ public partial class Mesh
         private PointOctree<Vertex> _octree = new PointOctree<Vertex>(100000, new Octree.Point(0f, 0f, 0f), (float)Vector3.EPSILON);
 
         /// <summary>The mesh' vertices.</summary>
-        [JsonPropertyName("Vertices")]
         public IList<Vertex> Vertices { get; set; }
 
         /// <summary>The mesh' triangles.</summary>
-        [JsonPropertyName("Triangles")]
         public IList<Triangle> Triangles { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Plane.cs b/Elements/src/Geometry/Plane.cs
index 909e2ef2d..bc6276d14 100644
--- a/Elements/src/Geometry/Plane.cs
+++ b/Elements/src/Geometry/Plane.cs
@@ -11,11 +11,9 @@ namespace Elements.Geometry
     public partial class Plane : IEquatable<Plane>
     {
         /// <summary>The origin of the plane.</summary>
-        [JsonPropertyName("Origin")]
         public Vector3 Origin { get; set; }
 
         /// <summary>The normal of the plane.</summary>
-        [JsonPropertyName("Normal")]
         public Vector3 Normal { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Polyline.cs b/Elements/src/Geometry/Polyline.cs
index 661011bb3..630204f28 100644
--- a/Elements/src/Geometry/Polyline.cs
+++ b/Elements/src/Geometry/Polyline.cs
@@ -23,7 +23,6 @@ public class Polyline : Curve, IEquatable<Polyline>
         internal BBox3 _bounds;
 
         /// <summary>The vertices of the polygon.</summary>
-        [JsonPropertyName("Vertices")]
         [System.ComponentModel.DataAnnotations.Required]
         [System.ComponentModel.DataAnnotations.MinLength(2)]
         public IList<Vector3> Vertices { get; set; } = new List<Vector3>();
diff --git a/Elements/src/Geometry/Profile.cs b/Elements/src/Geometry/Profile.cs
index 4bce51119..1b01e2505 100644
--- a/Elements/src/Geometry/Profile.cs
+++ b/Elements/src/Geometry/Profile.cs
@@ -13,11 +13,9 @@ namespace Elements.Geometry
     public class Profile : Element, IEquatable<Profile>
     {
         /// <summary>The perimeter of the profile.</summary>
-        [JsonPropertyName("Perimeter")]
         public Polygon Perimeter { get; set; }
 
         /// <summary>A collection of Polygons representing voids in the profile.</summary>
-        [JsonPropertyName("Voids")]
         public IList<Polygon> Voids { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Representation.cs b/Elements/src/Geometry/Representation.cs
index ebd7e5c40..c9b341956 100644
--- a/Elements/src/Geometry/Representation.cs
+++ b/Elements/src/Geometry/Representation.cs
@@ -8,7 +8,6 @@ namespace Elements.Geometry
     public class Representation
     {
         /// <summary>A collection of solid operations.</summary>
-        [JsonPropertyName("SolidOperations")]
         [System.ComponentModel.DataAnnotations.Required]
         public IList<SolidOperation> SolidOperations { get; set; } = new List<SolidOperation>();
 
diff --git a/Elements/src/Geometry/Solids/Extrude.cs b/Elements/src/Geometry/Solids/Extrude.cs
index e3282c4a9..20cbb4719 100644
--- a/Elements/src/Geometry/Solids/Extrude.cs
+++ b/Elements/src/Geometry/Solids/Extrude.cs
@@ -15,7 +15,6 @@ public class Extrude : SolidOperation, System.ComponentModel.INotifyPropertyChan
         private Vector3 _direction;
 
         /// <summary>The id of the profile to extrude.</summary>
-        [JsonPropertyName("Profile")]
         [JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile
         {
@@ -31,7 +30,6 @@ public Profile Profile
         }
 
         /// <summary>The height of the extrusion.</summary>
-        [JsonPropertyName("Height")]
         [System.ComponentModel.DataAnnotations.Range(0D, double.MaxValue)]
         public double Height
         {
@@ -47,7 +45,6 @@ public double Height
         }
 
         /// <summary>The direction in which to extrude.</summary>
-        [JsonPropertyName("Direction")]
         public Vector3 Direction
         {
             get { return _direction; }
diff --git a/Elements/src/Geometry/Solids/Lamina.cs b/Elements/src/Geometry/Solids/Lamina.cs
index 79e6af4cb..4095aea20 100644
--- a/Elements/src/Geometry/Solids/Lamina.cs
+++ b/Elements/src/Geometry/Solids/Lamina.cs
@@ -12,7 +12,6 @@ public class Lamina : SolidOperation
         private IList<Polygon> _voids;
 
         /// <summary>The perimeter.</summary>
-        [JsonPropertyName("Perimeter")]
         public Polygon Perimeter
         {
             get { return _perimeter; }
@@ -29,7 +28,6 @@ public Polygon Perimeter
         /// <summary>
         /// A collection of voids.
         /// </summary>
-        [JsonPropertyName("Voids")]
         public IList<Polygon> Voids
         {
             get { return _voids; }
diff --git a/Elements/src/Geometry/Solids/SolidOperation.cs b/Elements/src/Geometry/Solids/SolidOperation.cs
index 6c509cc87..b00eadb91 100644
--- a/Elements/src/Geometry/Solids/SolidOperation.cs
+++ b/Elements/src/Geometry/Solids/SolidOperation.cs
@@ -28,7 +28,6 @@ public Solid Solid
         /// <summary>
         /// Is the solid operation a void operation?
         /// </summary>
-        [JsonPropertyName("IsVoid")]
         public bool IsVoid { get; set; } = false;
 
         /// <summary>
diff --git a/Elements/src/Geometry/Solids/Sweep.cs b/Elements/src/Geometry/Solids/Sweep.cs
index 16ac29e1f..ad9369f5d 100644
--- a/Elements/src/Geometry/Solids/Sweep.cs
+++ b/Elements/src/Geometry/Solids/Sweep.cs
@@ -37,7 +37,6 @@ public Sweep(Profile @profile, Curve @curve, double @startSetback, double @endSe
         }
 
         /// <summary>The id of the profile to be swept along the curve.</summary>
-        [JsonPropertyName("Profile")]
         [JsonConverter(typeof(ElementConverter<Profile>))]
         public Profile Profile
         {
@@ -53,7 +52,6 @@ public Profile Profile
         }
 
         /// <summary>The curve along which the profile will be swept.</summary>
-        [JsonPropertyName("Curve")]
         public Curve Curve
         {
             get { return _curve; }
@@ -68,7 +66,6 @@ public Curve Curve
         }
 
         /// <summary>The amount to set back the resulting solid from the start of the curve.</summary>
-        [JsonPropertyName("StartSetback")]
         public double StartSetback
         {
             get { return _startSetback; }
@@ -83,7 +80,6 @@ public double StartSetback
         }
 
         /// <summary>The amount to set back the resulting solid from the end of the curve.</summary>
-        [JsonPropertyName("EndSetback")]
         public double EndSetback
         {
             get { return _endSetback; }
@@ -98,7 +94,6 @@ public double EndSetback
         }
 
         /// <summary>The rotation of the profile around the sweep's curve.</summary>
-        [JsonPropertyName("ProfileRotation")]
         public double ProfileRotation
         {
             get { return _profileRotation; }
diff --git a/Elements/src/Geometry/Transform.cs b/Elements/src/Geometry/Transform.cs
index 47135daac..aef8239bd 100644
--- a/Elements/src/Geometry/Transform.cs
+++ b/Elements/src/Geometry/Transform.cs
@@ -37,7 +37,6 @@ public partial class Transform : IEquatable<Transform>
         public Vector3 ZAxis => this.Matrix.ZAxis;
 
         /// <summary>The transform's matrix.</summary>
-        [JsonPropertyName("Matrix")]
         [System.ComponentModel.DataAnnotations.Required]
         public Matrix Matrix { get; set; } = new Matrix();
 
diff --git a/Elements/src/Geometry/Triangle.cs b/Elements/src/Geometry/Triangle.cs
index 55e453608..128995d8e 100644
--- a/Elements/src/Geometry/Triangle.cs
+++ b/Elements/src/Geometry/Triangle.cs
@@ -12,12 +12,10 @@ namespace Elements.Geometry
     public class Triangle
     {
         /// <summary>The triangle's vertices.</summary>
-        [JsonPropertyName("Vertices")]
         [System.ComponentModel.DataAnnotations.Required]
         public IList<Vertex> Vertices { get; set; } = new List<Vertex>();
 
         /// <summary>The triangle's normal.</summary>
-        [JsonPropertyName("Normal")]
         public Vector3 Normal { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/UV.cs b/Elements/src/Geometry/UV.cs
index 13c38c384..d952e6df7 100644
--- a/Elements/src/Geometry/UV.cs
+++ b/Elements/src/Geometry/UV.cs
@@ -8,11 +8,9 @@ namespace Elements.Geometry
     public struct UV
     {
         /// <summary>The U coordinate.</summary>
-        [JsonPropertyName("U")]
         public double U { get; set; }
 
         /// <summary>The V coordinate.</summary>
-        [JsonPropertyName("V")]
         public double V { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Vector3.cs b/Elements/src/Geometry/Vector3.cs
index bd0d9b611..dce8ddcdb 100644
--- a/Elements/src/Geometry/Vector3.cs
+++ b/Elements/src/Geometry/Vector3.cs
@@ -48,15 +48,12 @@ public Vector3(double @x, double @y, double @z)
         }
 
         /// <summary>The X component of the vector.</summary>
-        [JsonPropertyName("X")]
         public double X { get; set; }
 
         /// <summary>The Y component of the vector.</summary>
-        [JsonPropertyName("Y")]
         public double Y { get; set; }
 
         /// <summary>The Z component of the vector.</summary>
-        [JsonPropertyName("Z")]
         public double Z { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Vertex.cs b/Elements/src/Geometry/Vertex.cs
index 0a1339fde..92e05d515 100644
--- a/Elements/src/Geometry/Vertex.cs
+++ b/Elements/src/Geometry/Vertex.cs
@@ -9,24 +9,19 @@ namespace Elements.Geometry
     public class Vertex
     {
         /// <summary>The vertex's position.</summary>
-        [JsonPropertyName("Position")]
         public Vector3 Position { get; set; }
 
         /// <summary>The vertex's normal.</summary>
-        [JsonPropertyName("Normal")]
         public Vector3 Normal { get; set; }
 
         /// <summary>The vertex's color.</summary>
-        [JsonPropertyName("Color")]
         [System.ComponentModel.DataAnnotations.Required]
         public Color Color { get; set; } = new Color();
 
         /// <summary>The index of the vertex within a mesh.</summary>
-        [JsonPropertyName("Index")]
         public int Index { get; set; }
 
         /// <summary>The vertex's texture coordinate.</summary>
-        [JsonPropertyName("UV")]
         [System.ComponentModel.DataAnnotations.Required]
         public UV UV { get; set; } = new UV();
 
@@ -53,7 +48,6 @@ public Vertex(Vector3 @position, Vector3 @normal, Color @color, int @index, UV @
         // during serialization.
 
         /// <summary>The triangles associated with this vertex.</summary>
-        [JsonPropertyName("Triangles")]
         [System.ComponentModel.DataAnnotations.Required]
         [JsonIgnore]
         public IList<Triangle> Triangles { get; set; } = new List<Triangle>();
diff --git a/Elements/src/GeometryReference.cs b/Elements/src/GeometryReference.cs
index 08fb8f95b..058aeabc4 100644
--- a/Elements/src/GeometryReference.cs
+++ b/Elements/src/GeometryReference.cs
@@ -9,11 +9,9 @@ namespace Elements
     public partial class GeometryReference
     {
         /// <summary>The URL where the referenced geometry is hosted.</summary>
-        [JsonPropertyName("GeometryUrl")]
         public string GeometryUrl { get; set; }
 
         /// <summary>Any geometric data directly contained in this reference.</summary>
-        [JsonPropertyName("InternalGeometry")]
         public IList<object> InternalGeometry { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Material.cs b/Elements/src/Material.cs
index bac4ef50e..720f9536f 100644
--- a/Elements/src/Material.cs
+++ b/Elements/src/Material.cs
@@ -16,52 +16,41 @@ namespace Elements
     public class Material : Element
     {
         /// <summary>The material's color.</summary>
-        [JsonPropertyName("Color")]
         [System.ComponentModel.DataAnnotations.Required]
         public Color Color { get; set; } = new Color();
 
         /// <summary>The specular factor between 0.0 and 1.0.</summary>
-        [JsonPropertyName("SpecularFactor")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double SpecularFactor { get; set; } = 0.1D;
 
         /// <summary>The glossiness factor between 0.0 and 1.0.</summary>
-        [JsonPropertyName("GlossinessFactor")]
         [System.ComponentModel.DataAnnotations.Range(0.0D, 1.0D)]
         public double GlossinessFactor { get; set; } = 0.1D;
 
         /// <summary>Is this material affected by lights?</summary>
-        [JsonPropertyName("Unlit")]
         public bool Unlit { get; set; } = false;
 
         /// <summary>A relative file path to an image file to be used as a texture.</summary>
-        [JsonPropertyName("Texture")]
         public string Texture { get; set; }
 
         /// <summary>Is this material to be rendered from both sides?</summary>
-        [JsonPropertyName("DoubleSided")]
         public bool DoubleSided { get; set; } = false;
 
         /// <summary>Should the texture be repeated? The RepeatTexture property determines whether textures are clamped in the [0,0]-&gt;[1,1] range or repeat continuously.</summary>
-        [JsonPropertyName("RepeatTexture")]
         public bool RepeatTexture { get; set; } = true;
 
         /// <summary>A relative path to a jpg or png image file to be used as a normal texture.</summary>
-        [JsonPropertyName("NormalTexture")]
         public string NormalTexture { get; set; }
 
         /// <summary>Should the texture colors be interpolated between pixels? If false, renders hard pixels in the texture rather than fading between adjacent pixels.</summary>
-        [JsonPropertyName("InterpolateTexture")]
         public bool InterpolateTexture { get; set; } = true;
 
         /// <summary>A relative path to a jpg or png image file to be used as an emissive texture.</summary>
-        [JsonPropertyName("EmissiveTexture")]
         public string EmissiveTexture { get; set; }
 
         /// <summary>
         /// The scale, between 0.0 and 1.0, of the emissive texture's components.
         /// </summary>
-        [JsonPropertyName("EmissiveFactor")]
         public double EmissiveFactor { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 7b5a49e75..b171cc1d0 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -23,16 +23,13 @@ namespace Elements
     public class Model
     {
         /// <summary>The origin of the model.</summary>
-        [JsonPropertyName("Origin")]
         [Obsolete("Use Transform instead.")]
         public Position Origin { get; set; }
 
         /// <summary>The transform of the model.</summary>
-        [JsonPropertyName("Transform")]
         public Transform Transform { get; set; }
 
         /// <summary>A collection of Elements keyed by their identifiers.</summary>
-        [JsonPropertyName("Elements")]
         [System.ComponentModel.DataAnnotations.Required]
         public IDictionary<Guid, Element> Elements { get; set; } = new System.Collections.Generic.Dictionary<Guid, Element>();
 
diff --git a/Elements/src/Symbol.cs b/Elements/src/Symbol.cs
index a4db6055a..71b8172b1 100644
--- a/Elements/src/Symbol.cs
+++ b/Elements/src/Symbol.cs
@@ -17,11 +17,9 @@ public class Symbol
         /// <summary>
         /// The geometry of the symbol.
         /// </summary>
-        [JsonPropertyName("Geometry")]
         public GeometryReference Geometry { get; set; }
 
         /// <summary>A named camera position for this representation, indicating the direction from which the camera is looking (a top view looks from top down, a north view looks from north to south.)</summary>
-        [JsonPropertyName("CameraPosition")]
         [JsonConverter(typeof(JsonStringEnumConverter))]
         public SymbolCameraPosition CameraPosition { get; set; }
 
diff --git a/Elements/src/WallByProfile.cs b/Elements/src/WallByProfile.cs
index 70ddd1747..d0734fbfc 100644
--- a/Elements/src/WallByProfile.cs
+++ b/Elements/src/WallByProfile.cs
@@ -13,18 +13,15 @@ namespace Elements
     public class WallByProfile : Wall
     {
         /// <summary>The overall thickness of the Wall</summary>
-        [JsonPropertyName("Thickness")]
         public double Thickness { get; set; }
 
         /// <summary>
         /// The perimeter of the Wall's elevation.  It is assumed to be in the same Plane as the Centerline,
         /// and will often be projected to that Plane during internal operations.
         /// </summary>
-        [JsonPropertyName("Perimeter")]
         public Polygon Perimeter { get; set; }
 
         /// <summary>The Centerline of the wall</summary>
-        [JsonPropertyName("Centerline")]
         public Line Centerline { get; set; }
 
         /// <summary>
diff --git a/Elements/test/Grid2dElement.cs b/Elements/test/Grid2dElement.cs
index d8d5a5d46..bf690746f 100644
--- a/Elements/test/Grid2dElement.cs
+++ b/Elements/test/Grid2dElement.cs
@@ -7,7 +7,6 @@ namespace Elements
     public partial class Grid2dElement : Element
     {
         /// <summary>contains a grid</summary>
-        [JsonPropertyName("Grid")]
         public Grid2d Grid { get; set; }
 
         [JsonConstructor]
diff --git a/Elements/test/MeshTests.cs b/Elements/test/MeshTests.cs
index e50823214..50121bd47 100644
--- a/Elements/test/MeshTests.cs
+++ b/Elements/test/MeshTests.cs
@@ -60,7 +60,6 @@ public InputsWithMesh(Mesh @mesh)
                 this.Mesh = @mesh;
             }
 
-            [JsonPropertyName("Mesh")]
             [JsonConverter(typeof(MeshConverter))]
             public Mesh Mesh { get; set; }
         }

From b3d77927585ef03f6d63c2ab8a4610de540858d8 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 10:41:38 -0400
Subject: [PATCH 067/150] Fix wall by profile test.

---
 Elements/src/Wall.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Elements/src/Wall.cs b/Elements/src/Wall.cs
index ac5e1816f..c01724564 100644
--- a/Elements/src/Wall.cs
+++ b/Elements/src/Wall.cs
@@ -29,6 +29,7 @@ public class Wall : GeometricElement, IHasOpenings
         /// <summary>
         /// A collection of openings in the wall.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<List<Opening>>))]
         public List<Opening> Openings { get; } = new List<Opening>();
 
         /// <summary>

From 557e549ea77f8f29f09dffb646f5e3ad75bcc5fd Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 11:11:32 -0400
Subject: [PATCH 068/150] Support tuple serialization.

---
 Elements/src/Model.cs      | 6 ++++--
 Elements/test/ModelTest.cs | 3 ++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index b171cc1d0..3464a98d6 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -213,7 +213,8 @@ public string ToJson(bool indent = false, bool gatherSubElements = true)
 
             var serializerOptions = new JsonSerializerOptions
             {
-                WriteIndented = indent
+                WriteIndented = indent,
+                IncludeFields = true // needed for tuple support
             };
             serializerOptions.Converters.Add(new ElementConverterFactory());
             serializerOptions.Converters.Add(new SolidConverter());
@@ -275,7 +276,8 @@ public static Model FromJson(string json)
                 var options = new JsonSerializerOptions()
                 {
                     PropertyNameCaseInsensitive = true,
-                    AllowTrailingCommas = true
+                    AllowTrailingCommas = true,
+                    IncludeFields = true // needed for tuples
                 };
                 options.Converters.Add(new SolidConverter());
 
diff --git a/Elements/test/ModelTest.cs b/Elements/test/ModelTest.cs
index 087cb2f02..2b382f4d9 100644
--- a/Elements/test/ModelTest.cs
+++ b/Elements/test/ModelTest.cs
@@ -68,7 +68,8 @@ public virtual void Dispose()
                 if (this.GenerateJson)
                 {
                     var jsonPath = $"models/{this._name}.json";
-                    File.WriteAllText(jsonPath, this._model.ToJson());
+                    var json = this._model.ToJson();
+                    File.WriteAllText(jsonPath, json);
 
                     var newModel = Model.FromJson(File.ReadAllText(jsonPath));
 

From 73e17b5c05fa5d317c8fbabe15104b14fda63d48 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 11:12:48 -0400
Subject: [PATCH 069/150] Fix model text tests and reenable json serialization.

---
 Elements/src/ModelText.cs       | 3 +++
 Elements/test/ModelTextTests.cs | 1 -
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/Elements/src/ModelText.cs b/Elements/src/ModelText.cs
index df3a88281..e86cc09c9 100644
--- a/Elements/src/ModelText.cs
+++ b/Elements/src/ModelText.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Reflection;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 using SixLabors.Fonts;
 using SixLabors.ImageSharp;
@@ -67,11 +68,13 @@ public class ModelText : MeshElement
         /// A collection of text data objects which specify the location,
         /// direction, content, and color of the text.
         /// </summary>
+        [JsonInclude]
         public IList<(Vector3 location, Vector3 facingDirection, Vector3 lineDirection, string text, Geometry.Color? color)> Texts { get; set; }
 
         /// <summary>
         /// The font size of the model text.
         /// </summary>
+        [JsonConverter(typeof(JsonStringEnumConverter))]
         public FontSize FontSize { get; set; }
 
         /// <summary>
diff --git a/Elements/test/ModelTextTests.cs b/Elements/test/ModelTextTests.cs
index 9659a0ab7..7ec5a877a 100644
--- a/Elements/test/ModelTextTests.cs
+++ b/Elements/test/ModelTextTests.cs
@@ -10,7 +10,6 @@ public class ModelTextTests : ModelTest
         public ModelTextTests()
         {
             this.GenerateIfc = false;
-            this.GenerateJson = false;
         }
 
         [Fact, Trait("Category", "Example")]

From b8486431f8f5f927a71905ba46686f2deffdd55d Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 11:13:03 -0400
Subject: [PATCH 070/150] Fix gridline.

---
 Elements/src/GridLine.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Elements/src/GridLine.cs b/Elements/src/GridLine.cs
index d250bdf59..023c11c78 100644
--- a/Elements/src/GridLine.cs
+++ b/Elements/src/GridLine.cs
@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -36,21 +38,25 @@ public Polyline Geometry
         /// <summary>
         /// Curve that runs from the start of the gridline to its end.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<Curve>))]
         public Curve Curve { get; set; }
 
         /// <summary>
         /// Radius of the gridline head.
         /// </summary>
+        [JsonInclude]
         public double Radius = 1;
 
         /// <summary>
         /// How far to extend the gridline from the beginning to the start of the circle.
         /// </summary>
+        [JsonInclude]
         public double ExtensionBeginning = 1;
 
         /// <summary>
         /// How far to extend the gridline past the end of the circle.
         /// </summary>
+        [JsonInclude]
         public double ExtensionEnd = 1;
 
         internal override Boolean TryToGraphicsBuffers(out List<GraphicsBuffers> graphicsBuffers, out string id, out glTFLoader.Schema.MeshPrimitive.ModeEnum? mode)

From 07fdd75f4fd490a099877bff163cbb8a04d9f0a3 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 11:17:36 -0400
Subject: [PATCH 071/150] Fix solid tests.

---
 Elements/test/SolidTests.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements/test/SolidTests.cs b/Elements/test/SolidTests.cs
index 20dfded21..a27d9f130 100644
--- a/Elements/test/SolidTests.cs
+++ b/Elements/test/SolidTests.cs
@@ -276,7 +276,7 @@ public void ConstructedSolidProducesValidGlb()
             {
                 IncludeFields = true
             };
-            var allPolygons = JsonSerializer.Deserialize<List<(Polygon outerLoop, List<Polygon> innerLoops)>>(File.ReadAllText("../../../models/Geometry/ExampleConstructedSolidPolygons.json"));
+            var allPolygons = JsonSerializer.Deserialize<List<(Polygon outerLoop, List<Polygon> innerLoops)>>(File.ReadAllText("../../../models/Geometry/ExampleConstructedSolidPolygons.json"), options);
             var solid = new Solid();
             foreach (var (outerLoop, innerLoops) in allPolygons)
             {

From 72584cf0de54d2178534ec25cb3bd982434da394 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 11:26:47 -0400
Subject: [PATCH 072/150] Remove some debug statements.

---
 Elements/src/Model.cs                                       | 3 ---
 Elements/src/Serialization/JSON/ElementReferenceResolver.cs | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 3464a98d6..8ede0ce48 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -263,9 +263,6 @@ public static Model FromJson(string json)
             var sw = new Stopwatch();
             sw.Start();
             var typeCache = AppDomainTypeCache.BuildAppDomainTypeCache(out _);
-#if DEBUG
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating type cache.");
-#endif
 
             Model model = null;
             using (var document = JsonDocument.Parse(json))
diff --git a/Elements/src/Serialization/JSON/ElementReferenceResolver.cs b/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
index 8200d523f..e0555003d 100644
--- a/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
+++ b/Elements/src/Serialization/JSON/ElementReferenceResolver.cs
@@ -22,9 +22,6 @@ internal class ElementReferenceResolver : ReferenceResolver
 
         public ElementReferenceResolver(Dictionary<string, Type> typeCache, JsonElement documentElements)
         {
-#if DEBUG
-            Console.WriteLine("Constructing a new reference resolver.");
-#endif
             TypeCache = typeCache;
             DocumentElements = documentElements;
         }

From 2aaa26fa3f352f861b45a0628b4f512458f6304e Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 11:27:01 -0400
Subject: [PATCH 073/150] Fix parametric profile tests.

---
 Elements/src/Geometry/Profiles/HSSProfile.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Elements/src/Geometry/Profiles/HSSProfile.cs b/Elements/src/Geometry/Profiles/HSSProfile.cs
index 11a2f56e9..000e559e3 100644
--- a/Elements/src/Geometry/Profiles/HSSProfile.cs
+++ b/Elements/src/Geometry/Profiles/HSSProfile.cs
@@ -12,6 +12,9 @@ public class HSSProfile : ParametricProfile
         public double Ht;
         public double h;
         public double B;
+
+        // Ignore to avoid serialization clash with 'B'
+        [JsonIgnore]
         public double b;
         public double tnom;
         public double tdes;

From 948714c27fe1d35492414c64416a7995bf01ea7f Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 11:31:17 -0400
Subject: [PATCH 074/150] Use the discriminated converter.

---
 Elements/test/Grid1dTests.cs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Elements/test/Grid1dTests.cs b/Elements/test/Grid1dTests.cs
index 3699f5a28..b864750ac 100644
--- a/Elements/test/Grid1dTests.cs
+++ b/Elements/test/Grid1dTests.cs
@@ -4,7 +4,6 @@
 using Xunit;
 using Elements.Geometry;
 using System.Collections.Generic;
-using System.Text.Json.Serialization;
 using System.Text.Json;
 
 namespace Elements.Tests
@@ -162,7 +161,7 @@ public void Grid1dSerializes()
             grid.DivideByCount(4);
             grid[3].DivideByFixedLength(0.4);
             var json = JsonSerializer.Serialize(grid);
-            var deserialized = JsonSerializer.Deserialize<Grid1d>(json);
+            var deserialized = Element.Deserialize<Grid1d>(json);
             Assert.Equal(grid.GetCells().Count, deserialized.GetCells().Count);
             Assert.Equal(0, (grid.Curve as Polyline).Start.DistanceTo((deserialized.Curve as Polyline).Start));
         }

From 2b6fde96aaed6990f41b31204c15eb025fb8f55e Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 11:41:30 -0400
Subject: [PATCH 075/150] Include attribute no longer required.

---
 Elements/src/ModelText.cs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Elements/src/ModelText.cs b/Elements/src/ModelText.cs
index e86cc09c9..30b228043 100644
--- a/Elements/src/ModelText.cs
+++ b/Elements/src/ModelText.cs
@@ -68,7 +68,6 @@ public class ModelText : MeshElement
         /// A collection of text data objects which specify the location,
         /// direction, content, and color of the text.
         /// </summary>
-        [JsonInclude]
         public IList<(Vector3 location, Vector3 facingDirection, Vector3 lineDirection, string text, Geometry.Color? color)> Texts { get; set; }
 
         /// <summary>

From 032b3bbe1b9715db4c502bf5d86bcf27f5501acf Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 11:41:47 -0400
Subject: [PATCH 076/150] Add field inclusion to element serialization support
 method.

---
 Elements/src/Element.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index d84162acf..c7de315dd 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -106,7 +106,8 @@ public static T Deserialize<T>(string json)
                 var options = new JsonSerializerOptions()
                 {
                     PropertyNameCaseInsensitive = true,
-                    AllowTrailingCommas = true
+                    AllowTrailingCommas = true,
+                    IncludeFields = true
                 };
                 var typeCache = AppDomainTypeCache.BuildAppDomainTypeCache(out _);
                 var refHandler = new ElementReferenceHandler(typeCache, root);

From 31d29e147f3d80f3b4796b2901207ad846bcfda6 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 30 Apr 2022 14:02:33 -0400
Subject: [PATCH 077/150] Remove unneccessary JsonInclude.

---
 Elements/src/GridLine.cs                       |  3 ---
 .../src/Spatial/AdaptiveGrid/AdaptiveGrid.cs   |  7 ++-----
 .../src/Spatial/CellComplex/CellComplex.cs     | 18 ++++++------------
 Elements/src/Spatial/CellComplex/Face.cs       |  6 ++----
 Elements/src/Spatial/Grid1d.cs                 |  3 ---
 Elements/src/Spatial/Grid2d.cs                 |  8 --------
 6 files changed, 10 insertions(+), 35 deletions(-)

diff --git a/Elements/src/GridLine.cs b/Elements/src/GridLine.cs
index 023c11c78..e97d6b36a 100644
--- a/Elements/src/GridLine.cs
+++ b/Elements/src/GridLine.cs
@@ -44,19 +44,16 @@ public Polyline Geometry
         /// <summary>
         /// Radius of the gridline head.
         /// </summary>
-        [JsonInclude]
         public double Radius = 1;
 
         /// <summary>
         /// How far to extend the gridline from the beginning to the start of the circle.
         /// </summary>
-        [JsonInclude]
         public double ExtensionBeginning = 1;
 
         /// <summary>
         /// How far to extend the gridline past the end of the circle.
         /// </summary>
-        [JsonInclude]
         public double ExtensionEnd = 1;
 
         internal override Boolean TryToGraphicsBuffers(out List<GraphicsBuffers> graphicsBuffers, out string id, out glTFLoader.Schema.MeshPrimitive.ModeEnum? mode)
diff --git a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
index 645f44893..ad07feb33 100644
--- a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
+++ b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
@@ -2,7 +2,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Text.Json.Serialization;
 
 namespace Elements.Spatial.AdaptiveGrid
 {
@@ -26,14 +25,12 @@ public class AdaptiveGrid
         /// <summary>
         /// Vertices by ID.
         /// </summary>
-        [JsonInclude]
-        private Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
+        public Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
 
         /// <summary>
         /// Edges by ID.
         /// </summary>
-        [JsonInclude]
-        private Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
+        public Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
 
         // See Edge.GetHash for how edges are identified as unique.
         private Dictionary<string, ulong> _edgesLookup = new Dictionary<string, ulong>();
diff --git a/Elements/src/Spatial/CellComplex/CellComplex.cs b/Elements/src/Spatial/CellComplex/CellComplex.cs
index 22ca94bdc..318bddaf5 100644
--- a/Elements/src/Spatial/CellComplex/CellComplex.cs
+++ b/Elements/src/Spatial/CellComplex/CellComplex.cs
@@ -35,38 +35,32 @@ public class CellComplex : Elements.Element
         /// <summary>
         /// Vertices by ID.
         /// </summary>
-        [JsonInclude]
-        private Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
+        public Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
 
         /// <summary>
         /// U or V directions by ID.
         /// </summary>
-        [JsonInclude]
-        private Dictionary<ulong, Orientation> _orientations = new Dictionary<ulong, Orientation>();
+        public Dictionary<ulong, Orientation> _orientations = new Dictionary<ulong, Orientation>();
 
         /// <summary>
         /// Edges by ID.
         /// </summary>
-        [JsonInclude]
-        private Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
+        public Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
 
         /// <summary>
         /// DirectedEdges by ID.
         /// </summary>
-        [JsonInclude]
-        private Dictionary<ulong, DirectedEdge> _directedEdges = new Dictionary<ulong, DirectedEdge>();
+        public Dictionary<ulong, DirectedEdge> _directedEdges = new Dictionary<ulong, DirectedEdge>();
 
         /// <summary>
         /// Faces by ID.
         /// </summary>
-        [JsonInclude]
-        private Dictionary<ulong, Face> _faces = new Dictionary<ulong, Face>();
+        public Dictionary<ulong, Face> _faces = new Dictionary<ulong, Face>();
 
         /// <summary>
         /// Cells by ID.
         /// </summary>
-        [JsonInclude]
-        private Dictionary<ulong, Cell> _cells = new Dictionary<ulong, Cell>();
+        public Dictionary<ulong, Cell> _cells = new Dictionary<ulong, Cell>();
 
         // Vertex lookup by x, y, z coordinate.
         private Dictionary<double, Dictionary<double, Dictionary<double, ulong>>> _verticesLookup = new Dictionary<double, Dictionary<double, Dictionary<double, ulong>>>();
diff --git a/Elements/src/Spatial/CellComplex/Face.cs b/Elements/src/Spatial/CellComplex/Face.cs
index e01e4d866..7fe1d83b9 100644
--- a/Elements/src/Spatial/CellComplex/Face.cs
+++ b/Elements/src/Spatial/CellComplex/Face.cs
@@ -19,14 +19,12 @@ public class Face : ChildBase<Face, Polygon>, Interfaces.IHasNeighbors<Face, Pol
         /// <summary>
         /// ID of U orientation.
         /// </summary>
-        [JsonInclude]
-        private ulong? _orientationUId;
+        public ulong? _orientationUId;
 
         /// <summary>
         /// ID of V orientation.
         /// </summary>
-        [JsonInclude]
-        private ulong? _orientationVId;
+        public ulong? _orientationVId;
 
         /// <summary>
         /// Cells that reference this Face.
diff --git a/Elements/src/Spatial/Grid1d.cs b/Elements/src/Spatial/Grid1d.cs
index 1fdd3f7dd..a0cad7e51 100644
--- a/Elements/src/Spatial/Grid1d.cs
+++ b/Elements/src/Spatial/Grid1d.cs
@@ -43,7 +43,6 @@ public List<Grid1d> Cells
         /// <summary>
         /// Numerical domain of this Grid
         /// </summary>
-        [JsonInclude]
         public Domain1d Domain { get; }
 
         /// <summary>
@@ -89,7 +88,6 @@ public Curve Curve
         // we have to maintain an internal curve domain because subsequent subdivisions of a grid
         // based on a curve retain the entire curve; this domain allows us to map from the subdivided
         // domain back to the original curve.
-        [JsonInclude]
         [JsonPropertyName("CurveDomain")]
         public readonly Domain1d curveDomain;
 
@@ -100,7 +98,6 @@ public Curve Curve
         // is useful in serialization so we only store the base curve once. 
         private Grid1d topLevelParentGrid;
 
-        [JsonInclude]
         [JsonPropertyName("TopLevelParentCurve")]
         public Curve topLevelParentCurve
         {
diff --git a/Elements/src/Spatial/Grid2d.cs b/Elements/src/Spatial/Grid2d.cs
index ee7ddc59f..b2565971e 100644
--- a/Elements/src/Spatial/Grid2d.cs
+++ b/Elements/src/Spatial/Grid2d.cs
@@ -27,13 +27,11 @@ public class Grid2d
         /// <summary>
         /// The 1d Grid along the U dimension
         /// </summary>
-        [JsonInclude]
         public Grid1d U { get; private set; }
 
         /// <summary>
         /// The 1d grid along the V dimension
         /// </summary>
-        [JsonInclude]
         public Grid1d V { get; private set; }
 
         /// <summary>
@@ -51,33 +49,27 @@ public string Type
         /// <summary>
         /// A transform from grid space to world space
         /// </summary>
-        [JsonInclude]
         [JsonPropertyName("FromGrid")]
         public Transform fromGrid = new Transform();
 
         /// <summary>
         /// A transform from world space to grid space
         /// </summary>
-        [JsonInclude]
         [JsonPropertyName("ToGrid")]
         public Transform toGrid = new Transform();
 
-        [JsonInclude]
         public Domain1d UDomainInternal = new Domain1d(0, 0);
 
-        [JsonInclude]
         public Domain1d VDomainInternal = new Domain1d(0, 0);
 
         /// <summary>
         /// Any boundary curves, transformed to grid space.
         /// </summary>
-        [JsonInclude]
         [JsonPropertyName("BoundariesInGridSpace")]
         public IList<Polygon> boundariesInGridSpace;
 
         private List<List<Grid2d>> cells;
 
-        [JsonInclude]
         public List<IndexedCell> ModifiedChildCells => GetModifiedChildCells();
 
         // for serialization purposes, we store only those cells that are not a natural consequence of the U and V 1d grids composing this grid.

From 677fb8f86152e65e32436d82702319555b6091e4 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 1 May 2022 20:19:49 -0400
Subject: [PATCH 078/150] Fix content element.

---
 Elements/src/ContentElement.cs | 60 ++++++++++++++++++++++++++++++----
 1 file changed, 53 insertions(+), 7 deletions(-)

diff --git a/Elements/src/ContentElement.cs b/Elements/src/ContentElement.cs
index 6db21412e..b6a23bc06 100644
--- a/Elements/src/ContentElement.cs
+++ b/Elements/src/ContentElement.cs
@@ -2,7 +2,6 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using System.Text.Json.Serialization;
-using Elements.Serialization.JSON;
 using System.Text.Json;
 
 namespace Elements
@@ -81,10 +80,34 @@ public ContentElement(string @gltfLocation,
         /// <param name="id">The guid of this element.</param>
         /// <param name="name">The name of this element.</param>
         /// <param name="additionalProperties">The string json serialization of a dictionary of additional parameters.</param>
-        public ContentElement(string @gltfLocation, BBox3 @boundingBox, double @gltfScaleToMeters, Vector3 @sourceDirection, IList<Symbol> symbols, Transform @transform, Material @material, Representation @representation, bool @isElementDefinition, System.Guid @id, string @name, string @additionalProperties)
-        : this(@gltfLocation, @boundingBox, @gltfScaleToMeters, @sourceDirection, symbols, @transform, @material, @representation, @isElementDefinition, @id, @name)
+        public ContentElement(string @gltfLocation,
+                              BBox3 @boundingBox,
+                              double @gltfScaleToMeters,
+                              Vector3 @sourceDirection,
+                              IList<Symbol> symbols,
+                              Transform @transform,
+                              Material @material,
+                              Representation @representation,
+                              bool @isElementDefinition,
+                              System.Guid @id,
+                              string @name,
+                              string @additionalProperties)
+        : this(@gltfLocation,
+               @boundingBox,
+               @gltfScaleToMeters,
+               @sourceDirection,
+               symbols,
+               @transform,
+               @material,
+               @representation,
+               @isElementDefinition,
+               @id,
+               @name)
         {
-            this.AdditionalProperties = JsonSerializer.Deserialize<Dictionary<string, object>>(@additionalProperties);
+            if (additionalProperties != null && additionalProperties != string.Empty)
+            {
+                this.AdditionalProperties = JsonSerializer.Deserialize<Dictionary<string, object>>(@additionalProperties);
+            }
         }
 
         /// <summary>
@@ -103,10 +126,33 @@ public ContentElement(string @gltfLocation, BBox3 @boundingBox, double @gltfScal
         /// <param name="id">The guid of this element.</param>
         /// <param name="name">The name of this element.</param>
         /// <param name="additionalProperties">The string json serialization of a dictionary of additional parameters.</param>
-        public ContentElement(string @gltfLocation, BBox3 @boundingBox, double @gltfScaleToMeters, Vector3 @sourceDirection, Transform @transform, Material @material, Representation @representation, bool @isElementDefinition, System.Guid @id, string @name, string @additionalProperties)
-        : this(@gltfLocation, @boundingBox, @gltfScaleToMeters, @sourceDirection, null, @transform, @material, @representation, @isElementDefinition, @id, @name)
+        public ContentElement(string @gltfLocation,
+                              BBox3 @boundingBox,
+                              double @gltfScaleToMeters,
+                              Vector3 @sourceDirection,
+                              Transform @transform,
+                              Material @material,
+                              Representation @representation,
+                              bool @isElementDefinition,
+                              System.Guid @id,
+                              string @name,
+                              string @additionalProperties)
+        : this(@gltfLocation,
+               @boundingBox,
+               @gltfScaleToMeters,
+               @sourceDirection,
+               null,
+               @transform,
+               @material,
+               @representation,
+               @isElementDefinition,
+               @id,
+               @name)
         {
-            this.AdditionalProperties = JsonSerializer.Deserialize<Dictionary<string, object>>(@additionalProperties);
+            if (additionalProperties != null && additionalProperties != string.Empty)
+            {
+                this.AdditionalProperties = JsonSerializer.Deserialize<Dictionary<string, object>>(@additionalProperties);
+            }
         }
 
         /// <summary>

From 260ba9d5c36d860ee97ebb8767d2be06088e09ee Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 1 May 2022 21:47:09 -0400
Subject: [PATCH 079/150] Fix network tests.

---
 .../Serialization/JSON/PropertySerializationExtensions.cs  | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
index 23cd244fd..c6f65a84b 100644
--- a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
+++ b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
@@ -56,10 +56,11 @@ public static void DeserializeElementProperties(Type derivedType,
 
             foreach (var elementProperty in elementProperties)
             {
-                var prop = root.GetProperty(elementProperty.Name);
-                if (prop.ValueKind == JsonValueKind.Null)
+                if (!root.TryGetProperty(elementProperty.Name, out var prop) ||
+                prop.ValueKind == JsonValueKind.Null)
                 {
-                    // You'll get here when you've got a null reference to an element. 
+                    // You'll get here when you've got a null reference to an element,
+                    // or you've got no element at all in the json. 
                     // Resolve to an empty id, causing the resolver to return null.
                     elementReferenceResolver.ResolveReference(string.Empty);
                     continue;

From d1d1a2a5c33e13f2306eefa17ab38eea3e1496b9 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 2 May 2022 21:27:44 -0700
Subject: [PATCH 080/150] Don't use model converter and ignore nulls on
 serialize.

---
 Elements/src/Model.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 8ede0ce48..f7d01bd6c 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -214,7 +214,8 @@ public string ToJson(bool indent = false, bool gatherSubElements = true)
             var serializerOptions = new JsonSerializerOptions
             {
                 WriteIndented = indent,
-                IncludeFields = true // needed for tuple support
+                IncludeFields = true, // needed for tuple support
+                DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
             };
             serializerOptions.Converters.Add(new ElementConverterFactory());
             serializerOptions.Converters.Add(new SolidConverter());
@@ -286,7 +287,7 @@ public static Model FromJson(string json)
 
                 // Use the model converter here so that we have a chance to 
                 // intercept the creation of elements when things go wrong.
-                options.Converters.Add(new ModelConverter());
+                // options.Converters.Add(new ModelConverter());
 
                 model = JsonSerializer.Deserialize<Model>(json, options);
 

From 5c0946e02bdd45b343853ae212bd067f62fb1552 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 3 May 2022 23:01:18 -0700
Subject: [PATCH 081/150] Fix ElementProxy tests.

---
 Elements/src/ElementProxy.cs                  |  7 +-
 .../Serialization/JSON/AppDomainTypeCache.cs  |  8 +-
 .../Serialization/JSON/ElementConverter.cs    | 88 +++++++++++++++----
 .../JSON/PropertySerializationExtensions.cs   |  9 +-
 Elements/test/ElementProxyTests.cs            |  2 -
 5 files changed, 85 insertions(+), 29 deletions(-)

diff --git a/Elements/src/ElementProxy.cs b/Elements/src/ElementProxy.cs
index 37020b108..b229db6d4 100644
--- a/Elements/src/ElementProxy.cs
+++ b/Elements/src/ElementProxy.cs
@@ -52,7 +52,6 @@ internal static ElementProxy<T> GetProxy<T>(T element, string dependencyName) wh
     /// </summary>
     public class ElementProxy<T> : Element where T : Element
     {
-        [JsonIgnore]
         private T _element = null;
 
         /// <summary>
@@ -82,18 +81,16 @@ public T Element
         /// <summary>
         /// JSON constructor only for deserializing other models.
         /// </summary>
-        /// <returns></returns>
         [JsonConstructor]
-        internal ElementProxy(Guid elementId, string dependencyName, Guid id = default(Guid), string name = null) : base(id, name)
+        public ElementProxy(Guid elementId, string dependencyName, Guid id = default(Guid), string name = null) : base(id, name)
         {
             this.ElementId = elementId;
             this.Dependency = dependencyName;
         }
 
         /// <summary>
-        /// Create a new proxy within this function. Not intended to be used anywhere outside of ELementProxy.GetProxy().
+        /// Create a new proxy within this function. Not intended to be used anywhere outside of ElementProxy.GetProxy().
         /// </summary>
-        /// <returns></returns>
         internal ElementProxy(T element, string dependencyName, Guid id = default(Guid), string name = null) : base(id, name)
         {
             this.ElementId = element.Id;
diff --git a/Elements/src/Serialization/JSON/AppDomainTypeCache.cs b/Elements/src/Serialization/JSON/AppDomainTypeCache.cs
index 6852387aa..cce811c10 100644
--- a/Elements/src/Serialization/JSON/AppDomainTypeCache.cs
+++ b/Elements/src/Serialization/JSON/AppDomainTypeCache.cs
@@ -48,7 +48,13 @@ internal static Dictionary<string, Type> BuildAppDomainTypeCache(out List<string
                     {
                         if (IsValidTypeForElements(t) && !typeCache.ContainsKey(t.FullName))
                         {
-                            typeCache.Add(t.FullName, t);
+                            // At this point we don't know the generic type arguments,
+                            // so we key the type in the cache as Elements.ProxyElement<>
+                            // Later, when we set the discriminator, we include the
+                            // type argument like Elements.ProxyElement<Elements.Mass>, and
+                            // we do some string deconstruction to match the two and to
+                            // extract the type arguments.
+                            typeCache.Add(t.IsGenericType ? $"{t.FullName.Split('`').First()}<>" : t.FullName, t.IsGenericType ? t.GetGenericTypeDefinition() : t);
                         }
                     }
                     catch (TypeLoadException)
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 8cf2aa91c..036323d5b 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -100,42 +100,94 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                 }
                 else
                 {
-
                     using (var doc = JsonDocument.ParseValue(ref reader))
                     {
                         // Deserialize an element.
                         var root = doc.RootElement;
 
                         var discriminator = root.GetProperty("discriminator").GetString();
+                        Type derivedType;
 
-                        if (!resolver.TypeCache.TryGetValue(discriminator, out var derivedType))
+                        // Handle discriminators like ElementProxy<Elements.Mass>
+                        if (discriminator.Contains("<"))
                         {
-                            // The type could not be found. See if it has the hallmarks
-                            // of a geometric element and deserialize it as such if possible.
-                            if (root.TryGetProperty("Representation", out _))
+                            // Strip the element type from the discriminator.
+                            int start = discriminator.LastIndexOf("<") + 1;
+                            int end = discriminator.IndexOf(">", start);
+                            string result = discriminator.Remove(start, end - start);
+                            if (!resolver.TypeCache.TryGetValue(result, out derivedType))
                             {
-                                derivedType = typeof(GeometricElement);
+                                if (root.TryGetProperty("Representation", out _))
+                                {
+                                    derivedType = typeof(GeometricElement);
+                                }
+                                else
+                                {
+                                    return default;
+                                }
                             }
-                            else
+                        }
+                        else
+                        {
+                            if (!resolver.TypeCache.TryGetValue(discriminator, out derivedType))
                             {
-                                return default;
+                                // The type could not be found. See if it has the hallmarks
+                                // of a geometric element and deserialize it as such if possible.
+                                if (root.TryGetProperty("Representation", out _))
+                                {
+                                    derivedType = typeof(GeometricElement);
+                                }
+                                else
+                                {
+                                    return default;
+                                }
                             }
                         }
 
-                        // Use the type info to get all properties which are Element
-                        // references, and deserialize those first.
+                        if (derivedType.IsGenericType)
+                        {
+                            // Recover the type argument from the discriminator.
+                            // TODO: Support multiple type arguments.
+                            int start = discriminator.LastIndexOf("<") + 1;
+                            int end = discriminator.IndexOf(">", start);
+                            string elementType = discriminator.Substring(start, end - start);
+                            if (!resolver.TypeCache.TryGetValue(elementType, out var genericType))
+                            {
+                                throw new Exception($"The type {elementType} could not be found in the type cache. It can not be used as a generic type argument.");
+                            }
+                            var typeArgs = new[] { genericType };
+                            var genericElementType = derivedType.MakeGenericType(typeArgs);
 
-                        // TODO: This *should* support serialization of elements in
-                        // any order, removing the requirement to do any kind of recursive
-                        // sub-element searching. We can remove that code from the model.
-                        PropertySerializationExtensions.DeserializeElementProperties(derivedType, root, resolver, resolver.DocumentElements);
+                            if (discriminator.Contains("Elements.ElementProxy"))
+                            {
+                                var id = root.GetProperty("Id").GetGuid();
+                                var name = root.GetProperty("Name").GetString();
+                                var elementId = root.GetProperty("elementId").GetGuid();
+                                var dependency = root.GetProperty("dependency").GetString();
+                                var genericElement = (T)Activator.CreateInstance(genericElementType, new object[] { elementId, dependency, id, name });
+
+                                return genericElement;
+                            }
 
-                        T e = (T)root.Deserialize(derivedType, options);
-                        if (typeof(Element).IsAssignableFrom(derivedType))
+                            throw new Exception("Generic element types other than ElementProxy<T> are not currently supported.");
+                        }
+                        else
                         {
-                            resolver.AddReference(((Element)(object)e).Id.ToString(), e);
+                            // Use the type info to get all properties which are Element
+                            // references, and deserialize those first.
+
+                            // TODO: This *should* support serialization of elements in
+                            // any order, removing the requirement to do any kind of recursive
+                            // sub-element searching. We can remove that code from the model.
+                            PropertySerializationExtensions.DeserializeElementProperties(derivedType, root, resolver, resolver.DocumentElements);
+
+                            T e = (T)root.Deserialize(derivedType, options);
+                            if (typeof(Element).IsAssignableFrom(derivedType))
+                            {
+                                resolver.AddReference(((Element)(object)e).Id.ToString(), e);
+                            }
+                            return e;
                         }
-                        return e;
                     }
                 }
             }
diff --git a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
index c6f65a84b..35099e93a 100644
--- a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
+++ b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
@@ -25,13 +25,16 @@ public static void WriteProperties(this object value, Utf8JsonWriter writer, Jso
             foreach (var pinfo in pinfos)
             {
                 // Skip ignored properties
-                var attrib = pinfo.GetCustomAttribute<JsonIgnoreAttribute>();
-                if (attrib != null)
+                var ignoreAttrib = pinfo.GetCustomAttribute<JsonIgnoreAttribute>();
+                if (ignoreAttrib != null)
                 {
                     continue;
                 }
 
-                writer.WritePropertyName(pinfo.Name);
+                // Honor the renaming of a property
+                var nameAttrib = pinfo.GetCustomAttribute<JsonPropertyNameAttribute>();
+
+                writer.WritePropertyName(nameAttrib != null ? nameAttrib.Name : pinfo.Name);
                 JsonSerializer.Serialize(writer, pinfo.GetValue(value), pinfo.PropertyType, options);
             }
         }
diff --git a/Elements/test/ElementProxyTests.cs b/Elements/test/ElementProxyTests.cs
index 7841210ba..ca164fcab 100644
--- a/Elements/test/ElementProxyTests.cs
+++ b/Elements/test/ElementProxyTests.cs
@@ -1,6 +1,4 @@
-using Elements.Spatial;
 using Xunit;
-using System.Text.Json.Serialization;
 using Elements.Geometry;
 
 namespace Elements.Tests

From 5ee367d9d513ebb0603963129310781fb9301f05 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 7 May 2022 16:25:44 -0700
Subject: [PATCH 082/150] Add serializer options to all ToJson.

---
 Elements/src/Model.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index f7d01bd6c..024f54cad 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -233,7 +233,11 @@ public void ToJson(string path, bool gatherSubElements = true)
 
             using (FileStream s = File.Create(path))
             {
-                var serializerOptions = new JsonSerializerOptions();
+                var serializerOptions = new JsonSerializerOptions()
+                {
+                    IncludeFields = true, // needed for tuple support
+                    DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
+                };
                 serializerOptions.Converters.Add(new ElementConverterFactory());
                 serializerOptions.Converters.Add(new SolidConverter());
                 JsonSerializer.Serialize(s, exportModel, serializerOptions);

From fd2afe1a7b121ebc82890ef5c7ecc89dc35baed3 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 7 May 2022 18:36:02 -0700
Subject: [PATCH 083/150] Support writing public fields.

---
 .../JSON/PropertySerializationExtensions.cs            | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
index 35099e93a..0ad7ba8dd 100644
--- a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
+++ b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
@@ -37,6 +37,16 @@ public static void WriteProperties(this object value, Utf8JsonWriter writer, Jso
                 writer.WritePropertyName(nameAttrib != null ? nameAttrib.Name : pinfo.Name);
                 JsonSerializer.Serialize(writer, pinfo.GetValue(value), pinfo.PropertyType, options);
             }
+
+            // Support public fields.
+            var finfos = value.GetType().GetFields(BindingFlags.Public | BindingFlags.Instance);
+            foreach (var finfo in finfos)
+            {
+                var nameAttrib = finfo.GetCustomAttribute<JsonPropertyNameAttribute>();
+
+                writer.WritePropertyName(nameAttrib != null ? nameAttrib.Name : finfo.Name);
+                JsonSerializer.Serialize(writer, finfo.GetValue(value), finfo.FieldType, options);
+            }
         }
 
         public static void DeserializeElementProperties(Type derivedType,

From 8ea5a0887df7d0b8eb7fb2e7a2754c6d52e84b54 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 7 May 2022 18:36:12 -0700
Subject: [PATCH 084/150] Fix cell complex.

---
 Elements/src/Spatial/CellComplex/Cell.cs      |   2 +-
 .../src/Spatial/CellComplex/CellComplex.cs    | 131 ++++++++++--------
 .../src/Spatial/CellComplex/DirectedEdge.cs   |   2 +-
 Elements/src/Spatial/CellComplex/Edge.cs      |   3 +-
 Elements/src/Spatial/CellComplex/Face.cs      |  16 +--
 .../src/Spatial/CellComplex/Orientation.cs    |  14 +-
 Elements/src/Spatial/CellComplex/Vertex.cs    |   9 +-
 .../src/Spatial/CellComplex/VertexBase.cs     |   9 +-
 8 files changed, 101 insertions(+), 85 deletions(-)

diff --git a/Elements/src/Spatial/CellComplex/Cell.cs b/Elements/src/Spatial/CellComplex/Cell.cs
index e55d9d2a2..1954f0b53 100644
--- a/Elements/src/Spatial/CellComplex/Cell.cs
+++ b/Elements/src/Spatial/CellComplex/Cell.cs
@@ -68,7 +68,7 @@ internal Cell(CellComplex cellComplex, ulong id, List<Face> faces, Face bottomFa
         /// Used for deserialization only!
         /// </summary>
         [JsonConstructor]
-        internal Cell(ulong id, List<ulong> faceIds, ulong? bottomFaceId, ulong? topFaceId) : base(id, null)
+        public Cell(ulong id, List<ulong> faceIds, ulong? bottomFaceId, ulong? topFaceId) : base(id, null)
         {
             this.FaceIds = faceIds;
             this.BottomFaceId = bottomFaceId;
diff --git a/Elements/src/Spatial/CellComplex/CellComplex.cs b/Elements/src/Spatial/CellComplex/CellComplex.cs
index 318bddaf5..b99d3da1f 100644
--- a/Elements/src/Spatial/CellComplex/CellComplex.cs
+++ b/Elements/src/Spatial/CellComplex/CellComplex.cs
@@ -12,7 +12,7 @@ namespace Elements.Spatial.CellComplex
     /// <example>
     /// [!code-csharp[Main](../../Elements/test/CellComplexTests.cs?name=example)]
     /// </example>
-    public class CellComplex : Elements.Element
+    public class CellComplex : Element
     {
         /// <summary>
         /// Tolerance for points being considered the same.
@@ -35,32 +35,32 @@ public class CellComplex : Elements.Element
         /// <summary>
         /// Vertices by ID.
         /// </summary>
-        public Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
+        public Dictionary<ulong, Vertex> Vertices = new Dictionary<ulong, Vertex>();
 
         /// <summary>
         /// U or V directions by ID.
         /// </summary>
-        public Dictionary<ulong, Orientation> _orientations = new Dictionary<ulong, Orientation>();
+        public Dictionary<ulong, Orientation> Orientations = new Dictionary<ulong, Orientation>();
 
         /// <summary>
         /// Edges by ID.
         /// </summary>
-        public Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
+        public Dictionary<ulong, Edge> Edges = new Dictionary<ulong, Edge>();
 
         /// <summary>
         /// DirectedEdges by ID.
         /// </summary>
-        public Dictionary<ulong, DirectedEdge> _directedEdges = new Dictionary<ulong, DirectedEdge>();
+        public Dictionary<ulong, DirectedEdge> DirectedEdges = new Dictionary<ulong, DirectedEdge>();
 
         /// <summary>
         /// Faces by ID.
         /// </summary>
-        public Dictionary<ulong, Face> _faces = new Dictionary<ulong, Face>();
+        public Dictionary<ulong, Face> Faces = new Dictionary<ulong, Face>();
 
         /// <summary>
         /// Cells by ID.
         /// </summary>
-        public Dictionary<ulong, Cell> _cells = new Dictionary<ulong, Cell>();
+        public Dictionary<ulong, Cell> Cells = new Dictionary<ulong, Cell>();
 
         // Vertex lookup by x, y, z coordinate.
         private Dictionary<double, Dictionary<double, Dictionary<double, ulong>>> _verticesLookup = new Dictionary<double, Dictionary<double, Dictionary<double, ulong>>>();
@@ -72,7 +72,7 @@ public class CellComplex : Elements.Element
         private Dictionary<string, ulong> _edgesLookup = new Dictionary<string, ulong>();
 
         // Same as edgesLookup, with an addition level of dictionary for whether lesserVertexId is the start point or not
-        private Dictionary<(ulong, ulong), Dictionary<Boolean, ulong>> _directedEdgesLookup = new Dictionary<(ulong, ulong), Dictionary<Boolean, ulong>>();
+        private Dictionary<(ulong, ulong), Dictionary<bool, ulong>> _directedEdgesLookup = new Dictionary<(ulong, ulong), Dictionary<bool, ulong>>();
 
         // See Face.GetHash for how faces are identified as unique.
         private Dictionary<string, ulong> _facesLookup = new Dictionary<string, ulong>();
@@ -82,45 +82,56 @@ public class CellComplex : Elements.Element
         /// </summary>
         /// <param name="id">Optional ID: If blank, a new Guid will be created.</param>
         /// <param name="name">Optional name of your CellComplex.</param>
-        /// <returns></returns>
-        public CellComplex(Guid id = default(Guid), string name = null) : base(id != default(Guid) ? id : Guid.NewGuid(), name) { }
+        public CellComplex(Guid id = default(Guid),
+                           string name = null) : base(id != default(Guid) ? id : Guid.NewGuid(),
+                                                      name)
+        { }
+
+        // [JsonConstructor]
+        // public CellComplex(
+        // Dictionary<ulong, Vertex> vertices,
+        // Dictionary<ulong, Orientation> orientations,
+        // Dictionary<ulong, Edge> edges,
+        // Dictionary<ulong, DirectedEdge> directedEdges,
+        // Dictionary<ulong, Face> faces,
+        // Dictionary<ulong, Cell> cells
+        // ) : this(Guid.NewGuid(), "Foo", vertices, orientations, edges, directedEdges, faces, cells) { }
 
         /// <summary>
         /// This constructor is intended for serialization and deserialization only.
         /// </summary>
         /// <param name="id"></param>
         /// <param name="name"></param>
-        /// <param name="_vertices"></param>
-        /// <param name="_orientations"></param>
-        /// <param name="_edges"></param>
-        /// <param name="_directedEdges"></param>
-        /// <param name="_faces"></param>
-        /// <param name="_cells"></param>
-        /// <returns></returns>
+        /// <param name="vertices"></param>
+        /// <param name="orientations"></param>
+        /// <param name="edges"></param>
+        /// <param name="directedEdges"></param>
+        /// <param name="faces"></param>
+        /// <param name="cells"></param>
         [JsonConstructor]
-        internal CellComplex(
+        public CellComplex(
             Guid id,
             string name,
-            Dictionary<ulong, Vertex> _vertices,
-            Dictionary<ulong, Vertex> _orientations,
-            Dictionary<ulong, Edge> _edges,
-            Dictionary<ulong, DirectedEdge> _directedEdges,
-            Dictionary<ulong, Face> _faces,
-            Dictionary<ulong, Cell> _cells
+            Dictionary<ulong, Vertex> vertices,
+            Dictionary<ulong, Orientation> orientations,
+            Dictionary<ulong, Edge> edges,
+            Dictionary<ulong, DirectedEdge> directedEdges,
+            Dictionary<ulong, Face> faces,
+            Dictionary<ulong, Cell> cells
         ) : base(id, name)
         {
-            foreach (var vertex in _vertices.Values)
+            foreach (var vertex in vertices.Values)
             {
                 var added = this.AddVertexOrOrientation<Vertex>(vertex.Value, vertex.Id);
                 added.Name = vertex.Name;
             }
 
-            foreach (var orientation in _orientations.Values)
+            foreach (var orientation in orientations.Values)
             {
                 this.AddVertexOrOrientation<Orientation>(orientation.Value, orientation.Id);
             }
 
-            foreach (var edge in _edges.Values)
+            foreach (var edge in edges.Values)
             {
                 if (!this.AddEdge(new List<ulong>() { edge.StartVertexId, edge.EndVertexId }, edge.Id, out var addedEdge))
                 {
@@ -128,7 +139,7 @@ Dictionary<ulong, Cell> _cells
                 }
             }
 
-            foreach (var directedEdge in _directedEdges.Values)
+            foreach (var directedEdge in directedEdges.Values)
             {
                 var edge = this.GetEdge(directedEdge.EdgeId);
                 if (!this.AddDirectedEdge(edge, edge.StartVertexId == directedEdge.StartVertexId, directedEdge.Id, out var addedDirectedEdge))
@@ -137,7 +148,7 @@ Dictionary<ulong, Cell> _cells
                 }
             }
 
-            foreach (var face in _faces.Values)
+            foreach (var face in faces.Values)
             {
                 face.CellComplex = this; // CellComplex not included on deserialization, add it back for processing even though we will discard this and create a new one
                 var polygon = face.GetGeometry();
@@ -148,7 +159,7 @@ Dictionary<ulong, Cell> _cells
                 }
             }
 
-            foreach (var cell in _cells.Values)
+            foreach (var cell in cells.Values)
             {
                 var cellFaces = cell.FaceIds.Select(fId => this.GetFace(fId)).ToList();
                 var bottomFace = this.GetFace(cell.BottomFaceId);
@@ -249,16 +260,16 @@ private DirectedEdge AddDirectedEdge(Line line)
         /// <param name="topFace"></param>
         /// <param name="cell"></param>
         /// <returns>Whether the cell was successfully added. Will be false if cellId already exists.</returns>
-        private Boolean AddCell(ulong cellId, List<Face> faces, Face bottomFace, Face topFace, out Cell cell)
+        private bool AddCell(ulong cellId, List<Face> faces, Face bottomFace, Face topFace, out Cell cell)
         {
-            if (this._cells.ContainsKey(cellId))
+            if (this.Cells.ContainsKey(cellId))
             {
                 cell = null;
                 return false;
             }
 
             cell = new Cell(this, cellId, faces, bottomFace, topFace);
-            this._cells.Add(cell.Id, cell);
+            this.Cells.Add(cell.Id, cell);
 
             foreach (var face in faces)
             {
@@ -278,7 +289,7 @@ private Boolean AddCell(ulong cellId, List<Face> faces, Face bottomFace, Face to
         /// <param name="v"></param>
         /// <param name="face"></param>
         /// <returns>Whether the face was successfully added. Will be false if idIfNew already exists</returns>
-        private Boolean AddFace(Polygon polygon, ulong idIfNew, Orientation u, Orientation v, out Face face)
+        private bool AddFace(Polygon polygon, ulong idIfNew, Orientation u, Orientation v, out Face face)
         {
             var lines = polygon.Segments();
             var directedEdges = new List<DirectedEdge>();
@@ -294,7 +305,7 @@ private Boolean AddFace(Polygon polygon, ulong idIfNew, Orientation u, Orientati
                 face = new Face(this, idIfNew, directedEdges, u, v);
                 faceId = face.Id;
                 this._facesLookup.Add(hash, faceId);
-                this._faces.Add(faceId, face);
+                this.Faces.Add(faceId, face);
 
                 foreach (var directedEdge in directedEdges)
                 {
@@ -306,7 +317,7 @@ private Boolean AddFace(Polygon polygon, ulong idIfNew, Orientation u, Orientati
             }
             else
             {
-                this._faces.TryGetValue(faceId, out face);
+                this.Faces.TryGetValue(faceId, out face);
                 return false;
             }
         }
@@ -319,7 +330,7 @@ private Boolean AddFace(Polygon polygon, ulong idIfNew, Orientation u, Orientati
         /// <param name="idIfNew"></param>
         /// <param name="directedEdge"></param>
         /// <returns>Whether the directedEdge was successfully added. Will be false if idIfNew already exists.</returns>
-        private Boolean AddDirectedEdge(Edge edge, Boolean edgeTupleIsInOrder, ulong idIfNew, out DirectedEdge directedEdge)
+        private bool AddDirectedEdge(Edge edge, bool edgeTupleIsInOrder, ulong idIfNew, out DirectedEdge directedEdge)
         {
             var edgeTuple = (edge.StartVertexId, edge.EndVertexId);
 
@@ -335,7 +346,7 @@ private Boolean AddDirectedEdge(Edge edge, Boolean edgeTupleIsInOrder, ulong idI
                 directedEdgeId = directedEdge.Id;
 
                 directedEdgeDict.Add(edgeTupleIsInOrder, directedEdgeId);
-                this._directedEdges.Add(directedEdgeId, directedEdge);
+                this.DirectedEdges.Add(directedEdgeId, directedEdge);
 
                 edge.DirectedEdges.Add(directedEdge);
 
@@ -345,7 +356,7 @@ private Boolean AddDirectedEdge(Edge edge, Boolean edgeTupleIsInOrder, ulong idI
             }
             else
             {
-                this._directedEdges.TryGetValue(directedEdgeId, out directedEdge);
+                this.DirectedEdges.TryGetValue(directedEdgeId, out directedEdge);
 
                 return false;
             }
@@ -358,7 +369,7 @@ private Boolean AddDirectedEdge(Edge edge, Boolean edgeTupleIsInOrder, ulong idI
         /// <param name="idIfNew"></param>
         /// <param name="edge"></param>
         /// <returns>Whether the edge was successfully added. Will be false if idIfNew already exists.</returns>
-        private Boolean AddEdge(List<ulong> vertexIds, ulong idIfNew, out Edge edge)
+        private bool AddEdge(List<ulong> vertexIds, ulong idIfNew, out Edge edge)
         {
             var hash = Edge.GetHash(vertexIds);
 
@@ -368,7 +379,7 @@ private Boolean AddEdge(List<ulong> vertexIds, ulong idIfNew, out Edge edge)
                 edgeId = edge.Id;
 
                 this._edgesLookup[hash] = edgeId;
-                this._edges.Add(edgeId, edge);
+                this.Edges.Add(edgeId, edge);
 
                 this.GetVertex(edge.StartVertexId).Edges.Add(edge);
                 this.GetVertex(edge.EndVertexId).Edges.Add(edge);
@@ -379,7 +390,7 @@ private Boolean AddEdge(List<ulong> vertexIds, ulong idIfNew, out Edge edge)
             }
             else
             {
-                this._edges.TryGetValue(edgeId, out edge);
+                this.Edges.TryGetValue(edgeId, out edge);
                 return false;
             }
         }
@@ -395,7 +406,7 @@ private Dictionary<ulong, T> GetVertexOrOrientationDictionary<T>() where T : Ver
             {
                 throw new Exception("Unsupported type provided, expected Vertex or Orientation");
             }
-            return typeof(T) == typeof(Orientation) ? this._orientations as Dictionary<ulong, T> : this._vertices as Dictionary<ulong, T>;
+            return typeof(T) == typeof(Orientation) ? this.Orientations as Dictionary<ulong, T> : this.Vertices as Dictionary<ulong, T>;
         }
 
         /// <summary>
@@ -456,7 +467,7 @@ private T AddVertexOrOrientation<T>(Vector3 point, ulong id) where T : VertexBas
         /// <param name="id">ID of created or existing item.</param>
         /// <typeparam name="T">Vertex or Orientation.</typeparam>
         /// <returns>Whether the item was successfully added. Will be false if idIfNew already exists.</returns>
-        private Boolean AddVertexOrOrientation<T>(Vector3 point, ulong idIfNew, out ulong id) where T : VertexBase<T>
+        private bool AddVertexOrOrientation<T>(Vector3 point, ulong idIfNew, out ulong id) where T : VertexBase<T>
         {
             var lookups = this.GetVertexOrOrientationLookup<T>();
             var dict = this.GetVertexOrOrientationDictionary<T>();
@@ -490,7 +501,7 @@ private Boolean AddVertexOrOrientation<T>(Vector3 point, ulong idIfNew, out ulon
         /// <returns></returns>
         public Vertex GetVertex(ulong vertexId)
         {
-            this._vertices.TryGetValue(vertexId, out var vertex);
+            this.Vertices.TryGetValue(vertexId, out var vertex);
             return vertex;
         }
 
@@ -500,7 +511,7 @@ public Vertex GetVertex(ulong vertexId)
         /// <returns></returns>
         public List<Vertex> GetVertices()
         {
-            return this._vertices.Values.ToList();
+            return this.Vertices.Values.ToList();
         }
 
         /// <summary>
@@ -514,7 +525,7 @@ public Orientation GetOrientation(ulong? orientationId)
             {
                 return null;
             }
-            this._orientations.TryGetValue((ulong)orientationId, out var orientation);
+            this.Orientations.TryGetValue((ulong)orientationId, out var orientation);
             return orientation;
         }
 
@@ -524,7 +535,7 @@ public Orientation GetOrientation(ulong? orientationId)
         /// <returns></returns>
         internal List<Orientation> GetOrientations()
         {
-            return this._orientations.Values.ToList();
+            return this.Orientations.Values.ToList();
         }
 
         /// <summary>
@@ -534,7 +545,7 @@ internal List<Orientation> GetOrientations()
         /// <returns></returns>
         public Edge GetEdge(ulong edgeId)
         {
-            this._edges.TryGetValue(edgeId, out var edge);
+            this.Edges.TryGetValue(edgeId, out var edge);
             return edge;
         }
 
@@ -544,7 +555,7 @@ public Edge GetEdge(ulong edgeId)
         /// <returns></returns>
         public List<Edge> GetEdges()
         {
-            return this._edges.Values.ToList();
+            return this.Edges.Values.ToList();
         }
 
         /// <summary>
@@ -558,7 +569,7 @@ public Face GetFace(ulong? faceId)
             {
                 return null;
             }
-            this._faces.TryGetValue((ulong)faceId, out var face);
+            this.Faces.TryGetValue((ulong)faceId, out var face);
             return face;
         }
 
@@ -568,7 +579,7 @@ public Face GetFace(ulong? faceId)
         /// <returns></returns>
         public List<Face> GetFaces()
         {
-            return this._faces.Values.ToList();
+            return this.Faces.Values.ToList();
         }
 
         /// <summary>
@@ -578,7 +589,7 @@ public List<Face> GetFaces()
         /// <returns></returns>
         public Cell GetCell(ulong cellId)
         {
-            this._cells.TryGetValue(cellId, out var cell);
+            this.Cells.TryGetValue(cellId, out var cell);
             return cell;
         }
 
@@ -588,7 +599,7 @@ public Cell GetCell(ulong cellId)
         /// <returns></returns>
         public List<Cell> GetCells()
         {
-            return this._cells.Values.ToList();
+            return this.Cells.Values.ToList();
         }
 
         /// <summary>
@@ -638,7 +649,7 @@ public Cell GetClosestCell(Vector3 point)
         /// <returns></returns>
         internal DirectedEdge GetDirectedEdge(ulong directedEdgeId)
         {
-            this._directedEdges.TryGetValue(directedEdgeId, out var directedEdge);
+            this.DirectedEdges.TryGetValue(directedEdgeId, out var directedEdge);
             return directedEdge;
         }
 
@@ -648,7 +659,7 @@ internal DirectedEdge GetDirectedEdge(ulong directedEdgeId)
         /// <returns></returns>
         internal List<DirectedEdge> GetDirectedEdges()
         {
-            return this._directedEdges.Values.ToList();
+            return this.DirectedEdges.Values.ToList();
         }
 
         /// <summary>
@@ -676,7 +687,7 @@ public List<Vertex> GetVerticesMatchingXY(double x, double y, Nullable<double> f
         /// <param name="id">The ID of the Vertex, if a match is found.</param>
         /// <param name="fuzzyFactor">Amount of tolerance in the search against each component of the coordinate.</param>
         /// <returns></returns>
-        public Boolean VertexExists(Vector3 point, out ulong id, Nullable<double> fuzzyFactor = null)
+        public bool VertexExists(Vector3 point, out ulong id, Nullable<double> fuzzyFactor = null)
         {
             return ValueExists(this._verticesLookup, point, out id, fuzzyFactor);
         }
@@ -707,7 +718,7 @@ private static HashSet<ulong> AddValue(Dictionary<ulong, HashSet<ulong>> dict, u
         /// <param name="addAddressIfNonExistent">Whether to create the dictionary address if it didn't previously exist.</param>
         /// <param name="fuzzyFactor">Amount of tolerance in the search against each component of the coordinate.</param>
         /// <returns>The created or existing last level of values. This can be null if the dictionary address didn't exist previously, and we chose not to add it.</returns>
-        private static Dictionary<double, ulong> GetAddressParent(Dictionary<double, Dictionary<double, Dictionary<double, ulong>>> dict, Vector3 point, Boolean addAddressIfNonExistent = false, Nullable<double> fuzzyFactor = null)
+        private static Dictionary<double, ulong> GetAddressParent(Dictionary<double, Dictionary<double, Dictionary<double, ulong>>> dict, Vector3 point, bool addAddressIfNonExistent = false, Nullable<double> fuzzyFactor = null)
         {
             if (!TryGetValue<Dictionary<double, Dictionary<double, ulong>>>(dict, point.X, out var yzDict, fuzzyFactor))
             {
@@ -746,7 +757,7 @@ private static Dictionary<double, ulong> GetAddressParent(Dictionary<double, Dic
         /// <param name="id">ID of the found vertex or orientation, if found.</param>
         /// <param name="fuzzyFactor">Amount of tolerance in the search against each component of the coordinate.</param>
         /// <returns></returns>
-        private static Boolean ValueExists(Dictionary<double, Dictionary<double, Dictionary<double, ulong>>> dict, Vector3 point, out ulong id, Nullable<double> fuzzyFactor = null)
+        private static bool ValueExists(Dictionary<double, Dictionary<double, Dictionary<double, ulong>>> dict, Vector3 point, out ulong id, Nullable<double> fuzzyFactor = null)
         {
             var zDict = GetAddressParent(dict, point, fuzzyFactor: fuzzyFactor);
             if (zDict == null)
@@ -766,7 +777,7 @@ private static Boolean ValueExists(Dictionary<double, Dictionary<double, Diction
         /// <param name="fuzzyFactor">Amount of tolerance in the search for the key.</param>
         /// <typeparam name="T">The type of the dictionary values.</typeparam>
         /// <returns>Whether a match was found.</returns>
-        private static Boolean TryGetValue<T>(Dictionary<double, T> dict, double key, out T value, Nullable<double> fuzzyFactor = null)
+        private static bool TryGetValue<T>(Dictionary<double, T> dict, double key, out T value, Nullable<double> fuzzyFactor = null)
         {
             if (dict.TryGetValue(key, out value))
             {
diff --git a/Elements/src/Spatial/CellComplex/DirectedEdge.cs b/Elements/src/Spatial/CellComplex/DirectedEdge.cs
index e5a25795e..802dbadea 100644
--- a/Elements/src/Spatial/CellComplex/DirectedEdge.cs
+++ b/Elements/src/Spatial/CellComplex/DirectedEdge.cs
@@ -54,7 +54,7 @@ internal DirectedEdge(CellComplex cellComplex, ulong id, Edge edge, bool edgeOrd
         /// Used for deserialization only!
         /// </summary>
         [JsonConstructor]
-        internal DirectedEdge(ulong id, ulong edgeId, ulong startVertexId, ulong endVertexId) : base(id, null)
+        public DirectedEdge(ulong id, ulong edgeId, ulong startVertexId, ulong endVertexId) : base(id, null)
         {
             this.EdgeId = edgeId;
             this.StartVertexId = startVertexId;
diff --git a/Elements/src/Spatial/CellComplex/Edge.cs b/Elements/src/Spatial/CellComplex/Edge.cs
index 9546f3065..68615843e 100644
--- a/Elements/src/Spatial/CellComplex/Edge.cs
+++ b/Elements/src/Spatial/CellComplex/Edge.cs
@@ -39,9 +39,8 @@ internal Edge(CellComplex cellComplex, ulong id, ulong vertexId1, ulong vertexId
         /// <param name="id"></param>
         /// <param name="startVertexId"></param>
         /// <param name="endVertexId"></param>
-        /// <returns></returns>
         [JsonConstructor]
-        internal Edge(ulong id, ulong startVertexId, ulong endVertexId) : base(id, null)
+        public Edge(ulong id, ulong startVertexId, ulong endVertexId) : base(id, null)
         {
             this.SetVerticesFromIds(startVertexId, endVertexId);
         }
diff --git a/Elements/src/Spatial/CellComplex/Face.cs b/Elements/src/Spatial/CellComplex/Face.cs
index 7fe1d83b9..3d7c885d8 100644
--- a/Elements/src/Spatial/CellComplex/Face.cs
+++ b/Elements/src/Spatial/CellComplex/Face.cs
@@ -19,12 +19,12 @@ public class Face : ChildBase<Face, Polygon>, Interfaces.IHasNeighbors<Face, Pol
         /// <summary>
         /// ID of U orientation.
         /// </summary>
-        public ulong? _orientationUId;
+        public ulong? OrientationUId;
 
         /// <summary>
         /// ID of V orientation.
         /// </summary>
-        public ulong? _orientationVId;
+        public ulong? OrientationVId;
 
         /// <summary>
         /// Cells that reference this Face.
@@ -46,11 +46,11 @@ internal Face(CellComplex cellComplex, ulong id, List<DirectedEdge> directedEdge
             this.DirectedEdgeIds = directedEdges.Select(ds => ds.Id).ToList();
             if (u != null)
             {
-                this._orientationUId = u.Id;
+                this.OrientationUId = u.Id;
             }
             if (v != null)
             {
-                this._orientationVId = v.Id;
+                this.OrientationVId = v.Id;
             }
         }
 
@@ -58,12 +58,12 @@ internal Face(CellComplex cellComplex, ulong id, List<DirectedEdge> directedEdge
         /// Used for deserialization only!
         /// </summary>
         [JsonConstructor]
-        internal Face(ulong id, List<ulong> directedEdgeIds, ulong? _orientationUId = null, ulong? _orientationVId = null) : base(id, null)
+        public Face(ulong id, List<ulong> directedEdgeIds, ulong? orientationUId, ulong? orientationVId) : base(id, null)
         {
             this.Id = id;
             this.DirectedEdgeIds = directedEdgeIds;
-            this._orientationUId = _orientationUId;
-            this._orientationVId = _orientationVId;
+            this.OrientationUId = orientationUId;
+            this.OrientationVId = orientationVId;
         }
 
         /// <summary>
@@ -190,7 +190,7 @@ public Cell GetClosestCell(Vector3 point)
         /// <returns></returns>
         public (Orientation U, Orientation V) GetOrientation()
         {
-            return (U: this.CellComplex.GetOrientation(this._orientationUId), V: this.CellComplex.GetOrientation(this._orientationVId));
+            return (U: this.CellComplex.GetOrientation(this.OrientationUId), V: this.CellComplex.GetOrientation(this.OrientationVId));
         }
 
         /// <summary>
diff --git a/Elements/src/Spatial/CellComplex/Orientation.cs b/Elements/src/Spatial/CellComplex/Orientation.cs
index da235e192..fc01fc55a 100644
--- a/Elements/src/Spatial/CellComplex/Orientation.cs
+++ b/Elements/src/Spatial/CellComplex/Orientation.cs
@@ -1,3 +1,4 @@
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 
 namespace Elements.Spatial.CellComplex
@@ -7,6 +8,16 @@ namespace Elements.Spatial.CellComplex
     /// </summary>
     public class Orientation : VertexBase<Orientation>
     {
+        /// <summary>
+        /// Create an orientation.
+        /// </summary>
+        /// <param name="id"></param>
+        /// <param name="value"></param>
+        /// <param name="name"></param>
+        /// <returns></returns>
+        [JsonConstructor]
+        public Orientation(ulong id, Vector3 value, string name = null) : base(id, value, name) { }
+
         /// <summary>
         /// Represents a unique orientation direction within a CellComplex.
         /// Is not intended to be created or modified outside of the CellComplex class code.
@@ -15,8 +26,7 @@ public class Orientation : VertexBase<Orientation>
         /// <param name="id"></param>
         /// <param name="orientation">The orientation direction</param>
         /// <param name="name">Optional name</param>
-        /// <returns></returns>
-        internal Orientation(CellComplex cellComplex, ulong id, Vector3 orientation, string name = null) : base(cellComplex, id, orientation, name) { }
+        public Orientation(CellComplex cellComplex, ulong id, Vector3 orientation, string name = null) : base(cellComplex, id, orientation, name) { }
 
         /// <summary>
         /// Do not use this method: it just throws an exception.
diff --git a/Elements/src/Spatial/CellComplex/Vertex.cs b/Elements/src/Spatial/CellComplex/Vertex.cs
index e806ae130..4b0f2edc9 100644
--- a/Elements/src/Spatial/CellComplex/Vertex.cs
+++ b/Elements/src/Spatial/CellComplex/Vertex.cs
@@ -22,19 +22,18 @@ public class Vertex : VertexBase<Vertex>
         /// </summary>
         /// <param name="cellComplex">CellComplex that this belongs to</param>
         /// <param name="id"></param>
-        /// <param name="point">Location of the vertex</param>
+        /// <param name="value">Location of the vertex</param>
         /// <param name="name">Optional name</param>
-        internal Vertex(CellComplex cellComplex, ulong id, Vector3 point, string name = null) : base(cellComplex, id, point, name) { }
+        internal Vertex(CellComplex cellComplex, ulong id, Vector3 value, string name = null) : base(cellComplex, id, value, name) { }
 
         /// <summary>
         /// For deserialization only!
         /// </summary>
         /// <param name="id"></param>
-        /// <param name="point"></param>
+        /// <param name="value"></param>
         /// <param name="name"></param>
-        /// <returns></returns>
         [JsonConstructor]
-        internal Vertex(ulong id, Vector3 point, string name = null) : base(id, point, name) { }
+        public Vertex(ulong id, Vector3 value, string name = null) : base(id, value, name) { }
 
         /// <summary>
         /// Get associated Edges.
diff --git a/Elements/src/Spatial/CellComplex/VertexBase.cs b/Elements/src/Spatial/CellComplex/VertexBase.cs
index 407db34f2..639cc9ced 100644
--- a/Elements/src/Spatial/CellComplex/VertexBase.cs
+++ b/Elements/src/Spatial/CellComplex/VertexBase.cs
@@ -36,20 +36,18 @@ internal VertexBase(CellComplex cellComplex, ulong id, Vector3 point, string nam
         /// For deserialization only!
         /// </summary>
         /// <param name="id"></param>
-        /// <param name="point"></param>
+        /// <param name="value"></param>
         /// <param name="name"></param>
-        /// <returns></returns>
         [JsonConstructor]
-        internal VertexBase(ulong id, Vector3 point, string name = null) : base(id, null)
+        public VertexBase(ulong id, Vector3 value, string name = null) : base(id, null)
         {
-            this.Value = point;
+            this.Value = value;
             this.Name = name;
         }
 
         /// <summary>
         /// Get the Vector3 that represents this Vertex or Orientation.
         /// </summary>
-        /// <returns></returns>
         public override Vector3 GetGeometry()
         {
             return this.Value;
@@ -59,7 +57,6 @@ public override Vector3 GetGeometry()
         ///  Get the shortest distance from a point to the geometry representing this vertex.
         /// </summary>
         /// <param name="point"></param>
-        /// <returns></returns>
         public override double DistanceTo(Vector3 point)
         {
             return point.DistanceTo(this.GetGeometry());

From 65bfd3ca21accc153eb353ddb5d1fb40c2f3e6eb Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 7 May 2022 18:40:31 -0700
Subject: [PATCH 085/150] Rename public fields in adaptive grid for
 consistency.

---
 .../src/Spatial/AdaptiveGrid/AdaptiveGrid.cs  | 22 +++++++++----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
index ad07feb33..c717c06de 100644
--- a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
+++ b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
@@ -25,12 +25,12 @@ public class AdaptiveGrid
         /// <summary>
         /// Vertices by ID.
         /// </summary>
-        public Dictionary<ulong, Vertex> _vertices = new Dictionary<ulong, Vertex>();
+        public Dictionary<ulong, Vertex> Vertices = new Dictionary<ulong, Vertex>();
 
         /// <summary>
         /// Edges by ID.
         /// </summary>
-        public Dictionary<ulong, Edge> _edges = new Dictionary<ulong, Edge>();
+        public Dictionary<ulong, Edge> Edges = new Dictionary<ulong, Edge>();
 
         // See Edge.GetHash for how edges are identified as unique.
         private Dictionary<string, ulong> _edgesLookup = new Dictionary<string, ulong>();
@@ -258,7 +258,7 @@ public void SubtractBox(BBox3 box)
         /// <returns></returns>
         public Vertex GetVertex(ulong vertexId)
         {
-            this._vertices.TryGetValue(vertexId, out var vertex);
+            this.Vertices.TryGetValue(vertexId, out var vertex);
             return vertex;
         }
 
@@ -268,7 +268,7 @@ public Vertex GetVertex(ulong vertexId)
         /// <returns></returns>
         public List<Vertex> GetVertices()
         {
-            return this._vertices.Values.ToList();
+            return this.Vertices.Values.ToList();
         }
 
         /// <summary>
@@ -277,7 +277,7 @@ public List<Vertex> GetVertices()
         /// <returns></returns>
         public List<Edge> GetEdges()
         {
-            return this._edges.Values.ToList();
+            return this.Edges.Values.ToList();
         }
 
         /// <summary>
@@ -463,7 +463,7 @@ public Edge AddEdge(ulong vertexId1, ulong vertexId2)
                 edgeId = edge.Id;
 
                 this._edgesLookup[hash] = edgeId;
-                this._edges.Add(edgeId, edge);
+                this.Edges.Add(edgeId, edge);
 
                 this.GetVertex(edge.StartId).Edges.Add(edge);
                 this.GetVertex(edge.EndId).Edges.Add(edge);
@@ -473,7 +473,7 @@ public Edge AddEdge(ulong vertexId1, ulong vertexId2)
             }
             else
             {
-                this._edges.TryGetValue(edgeId, out var edge);
+                this.Edges.TryGetValue(edgeId, out var edge);
                 return edge;
             }
         }
@@ -508,7 +508,7 @@ public void RemoveEdge(Edge edge)
         {
             var hash = Edge.GetHash(new List<ulong> { edge.StartId, edge.EndId });
             this._edgesLookup.Remove(hash);
-            this._edges.Remove(edge.Id);
+            this.Edges.Remove(edge.Id);
 
             var startVertexEdges = this.GetVertex(edge.StartId).Edges;
             startVertexEdges.Remove(edge);
@@ -542,7 +542,7 @@ private Vertex AddVertex(Vector3 point)
                 id = this._vertexId;
                 var vertex = new Vertex(id, point);
                 zDict[point.Z] = id;
-                _vertices[id] = vertex;
+                Vertices[id] = vertex;
                 this._vertexId++;
             }
 
@@ -551,8 +551,8 @@ private Vertex AddVertex(Vector3 point)
 
         private void DeleteVertex(ulong id)
         {
-            var vertex = _vertices[id];
-            _vertices.Remove(id);
+            var vertex = Vertices[id];
+            Vertices.Remove(id);
             var zDict = GetAddressParent(_verticesLookup, vertex.Point, tolerance: Tolerance);
             if (zDict == null)
             {

From d6f3183bdd0ba4fb4b6c06c3c2969b4cdc5bc571 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 7 May 2022 19:55:34 -0700
Subject: [PATCH 086/150] Fix dxf tests.

---
 Elements/src/GeometryReference.cs                  | 1 -
 Elements/src/Serialization/MappingConfiguration.cs | 5 +++++
 Elements/src/Symbol.cs                             | 2 ++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Elements/src/GeometryReference.cs b/Elements/src/GeometryReference.cs
index 058aeabc4..c1494c113 100644
--- a/Elements/src/GeometryReference.cs
+++ b/Elements/src/GeometryReference.cs
@@ -5,7 +5,6 @@
 namespace Elements
 {
     /// <summary>A reference to a model, hosted at a URL.</summary>
-    [JsonConverter(typeof(ElementConverter<GeometryReference>))]
     public partial class GeometryReference
     {
         /// <summary>The URL where the referenced geometry is hosted.</summary>
diff --git a/Elements/src/Serialization/MappingConfiguration.cs b/Elements/src/Serialization/MappingConfiguration.cs
index 5a25af398..21803cab5 100644
--- a/Elements/src/Serialization/MappingConfiguration.cs
+++ b/Elements/src/Serialization/MappingConfiguration.cs
@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 
 namespace Elements.Serialization
@@ -16,6 +17,7 @@ public MappingConfiguration()
         {
             this.Layers = new List<Layer>();
         }
+
         /// <summary>
         /// The layer configurations for this model.
         /// </summary>
@@ -33,6 +35,7 @@ public class Layer
             public Layer()
             {
             }
+
             /// <summary>
             /// The name of the layer.
             /// </summary>
@@ -47,6 +50,8 @@ public Layer()
             /// <summary>
             /// How items on this layer should have their colors determined.
             /// </summary>
+            [JsonConverter(typeof(JsonStringEnumConverter))]
+
             public ElementColorSetting ElementColorSetting { get; set; } = ElementColorSetting.ByLayer;
 
             /// <summary>
diff --git a/Elements/src/Symbol.cs b/Elements/src/Symbol.cs
index 71b8172b1..7794c6f42 100644
--- a/Elements/src/Symbol.cs
+++ b/Elements/src/Symbol.cs
@@ -6,6 +6,7 @@
 using System.Threading.Tasks;
 using System.Text.Json.Serialization;
 using System.Text.Json;
+using Elements.Serialization.JSON;
 
 namespace Elements
 {
@@ -17,6 +18,7 @@ public class Symbol
         /// <summary>
         /// The geometry of the symbol.
         /// </summary>
+        [JsonConverter(typeof(ElementConverter<GeometryReference>))]
         public GeometryReference Geometry { get; set; }
 
         /// <summary>A named camera position for this representation, indicating the direction from which the camera is looking (a top view looks from top down, a north view looks from north to south.)</summary>

From 0492621f89d33b7aa8897e66aa596fc7f088aaa7 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 8 May 2022 06:36:02 -0700
Subject: [PATCH 087/150] Cleanup.

---
 Elements/src/GeometryReference.cs                   | 1 -
 Elements/src/Serialization/JSON/ElementConverter.cs | 6 ++++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Elements/src/GeometryReference.cs b/Elements/src/GeometryReference.cs
index c1494c113..111c9d9cd 100644
--- a/Elements/src/GeometryReference.cs
+++ b/Elements/src/GeometryReference.cs
@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using System.Text.Json.Serialization;
-using Elements.Serialization.JSON;
 
 namespace Elements
 {
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 036323d5b..1e599f117 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -181,6 +181,12 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                             // sub-element searching. We can remove that code from the model.
                             PropertySerializationExtensions.DeserializeElementProperties(derivedType, root, resolver, resolver.DocumentElements);
 
+                            // if (root.TryGetProperty("Id", out var id))
+                            // {
+                            //     var strId = id.GetString();
+                            //     Console.WriteLine($"Deserializing element {strId}");
+                            // }
+
                             T e = (T)root.Deserialize(derivedType, options);
                             if (typeof(Element).IsAssignableFrom(derivedType))
                             {

From d466b3bf982d3d28e7c43963be3be3b952aec3d4 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 9 May 2022 19:03:04 -0700
Subject: [PATCH 088/150] Make sure we use an enum converter.

---
 Elements.CodeGeneration/src/Templates/Class.liquid | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements.CodeGeneration/src/Templates/Class.liquid b/Elements.CodeGeneration/src/Templates/Class.liquid
index 5824400eb..e8da5126e 100644
--- a/Elements.CodeGeneration/src/Templates/Class.liquid
+++ b/Elements.CodeGeneration/src/Templates/Class.liquid
@@ -50,7 +50,7 @@
     [System.ComponentModel.DataAnnotations.RegularExpression(@"{{ property.RegularExpressionValue }}")]
 {%   endif -%}
 {%   if property.IsStringEnum -%}
-    [JsonConverter(typeof(Converters.StringEnumConverter))]
+    [JsonConverter(typeof(JsonStringEnumConverter))]
 {%   endif -%}
 {%   if property.IsDate and UseDateFormatConverter -%}
     [JsonConverter(typeof(DateFormatConverter))]

From 93220974edd63a41b4806072fc0d8d021cc26e55 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 9 May 2022 19:03:23 -0700
Subject: [PATCH 089/150] Remove last element reference to Newtonsoft.

---
 Elements/src/Elements.csproj | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Elements/src/Elements.csproj b/Elements/src/Elements.csproj
index 2b986c40b..483006d93 100644
--- a/Elements/src/Elements.csproj
+++ b/Elements/src/Elements.csproj
@@ -17,7 +17,6 @@
     <PackageReference Include="glTF2Loader" Version="1.1.3-alpha" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="3.11.0" />
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
     <PackageReference Include="SixLabors.Fonts" Version="1.0.0-beta15" />
     <PackageReference Include="SixLabors.ImageSharp" Version="1.0.3" />
     <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta13" />

From a94e8f0d49b61f767a9f997ced9f15a900aaeefc Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 9 May 2022 19:04:28 -0700
Subject: [PATCH 090/150] Refactor the element converter and factory into
 separate files.

---
 .../Serialization/JSON/ElementConverter.cs    | 244 +++++++++++++++---
 .../JSON/ElementConverterFactory.cs           |  37 +++
 .../JSON/PropertySerializationExtensions.cs   | 206 ---------------
 3 files changed, 246 insertions(+), 241 deletions(-)
 create mode 100644 Elements/src/Serialization/JSON/ElementConverterFactory.cs
 delete mode 100644 Elements/src/Serialization/JSON/PropertySerializationExtensions.cs

diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 1e599f117..e0026177e 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -1,42 +1,16 @@
 using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 
 namespace Elements.Serialization.JSON
 {
-    internal class ElementConverterFactory : JsonConverterFactory
-    {
-        private readonly bool _elementwiseSerialization;
-
-        /// <summary>
-        /// Should the elements be serialized completely? If this option is false,
-        /// elements will be serialized to ids.
-        /// </summary>
-        /// <param name="elementwiseSerialization"></param>
-        public ElementConverterFactory(bool elementwiseSerialization = false)
-        {
-            _elementwiseSerialization = elementwiseSerialization;
-        }
-
-        public override bool CanConvert(Type typeToConvert)
-        {
-            return typeof(Element).IsAssignableFrom(typeToConvert);
-        }
-
-        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
-        {
-            var elementConverter = typeof(ElementConverter<>);
-            var typeArgs = new[] { typeToConvert };
-            var converterType = elementConverter.MakeGenericType(typeArgs);
-            var converter = Activator.CreateInstance(converterType) as JsonConverter;
-            var pi = converterType.GetProperty("ElementwiseSerialization");
-            pi.SetValue(converter, _elementwiseSerialization);
-            return converter;
-        }
-    }
-
     /// <summary>
-    /// Convert elements, lists of elements and dictionaries of elements.
+    /// Convert elements, lists of elements, and dictionaries of elements,
+    /// and elements with generic type parameters.
+    /// 
     /// </summary>
     /// <typeparam name="T"></typeparam>
     internal class ElementConverter<T> : JsonConverter<T>
@@ -60,7 +34,7 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
             }
             else
             {
-                if (PropertySerializationExtensions.IsAcceptedCollectionType(typeToConvert, out var collectionType))
+                if (IsAcceptedCollectionType(typeToConvert, out var collectionType))
                 {
                     var elements = Activator.CreateInstance(typeToConvert);
                     var mi = typeToConvert.GetMethod("Add");
@@ -179,8 +153,15 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                             // TODO: This *should* support serialization of elements in
                             // any order, removing the requirement to do any kind of recursive
                             // sub-element searching. We can remove that code from the model.
-                            PropertySerializationExtensions.DeserializeElementProperties(derivedType, root, resolver, resolver.DocumentElements);
+                            DeserializeElementProperties(derivedType, root, resolver, resolver.DocumentElements);
 
+                            // Use this for debugging. If you can't figure out
+                            // where serialization is going bezerk, it'll print
+                            // the element ids as they serialize. This is useful
+                            // when things like stack overflows happen, to identify
+                            // the last element entered before the overflow. Then you 
+                            // can go and look at that element in the JSON and
+                            // try to understand what's happening.
                             // if (root.TryGetProperty("Id", out var id))
                             // {
                             //     var strId = id.GetString();
@@ -209,9 +190,202 @@ public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions
             else
             {
                 writer.WriteStartObject();
-                value.WriteProperties(writer, options);
+                WriteProperties(value, writer, options);
                 writer.WriteEndObject();
             }
         }
+
+        public void WriteProperties(object value, Utf8JsonWriter writer, JsonSerializerOptions options)
+        {
+            // Inject the discriminator into the serialized JSON.
+            writer.WriteString("discriminator", GetDiscriminatorName(value));
+
+            var pinfos = value.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
+            foreach (var pinfo in pinfos)
+            {
+                // Skip ignored properties
+                var ignoreAttrib = pinfo.GetCustomAttribute<JsonIgnoreAttribute>();
+                if (ignoreAttrib != null)
+                {
+                    continue;
+                }
+
+                // Honor the renaming of a property
+                var nameAttrib = pinfo.GetCustomAttribute<JsonPropertyNameAttribute>();
+
+                writer.WritePropertyName(nameAttrib != null ? nameAttrib.Name : pinfo.Name);
+                JsonSerializer.Serialize(writer, pinfo.GetValue(value), pinfo.PropertyType, options);
+            }
+
+            // Support public fields.
+            var finfos = value.GetType().GetFields(BindingFlags.Public | BindingFlags.Instance);
+            foreach (var finfo in finfos)
+            {
+                var nameAttrib = finfo.GetCustomAttribute<JsonPropertyNameAttribute>();
+
+                writer.WritePropertyName(nameAttrib != null ? nameAttrib.Name : finfo.Name);
+                JsonSerializer.Serialize(writer, finfo.GetValue(value), finfo.FieldType, options);
+            }
+        }
+
+        private void DeserializeElementProperties(Type derivedType,
+                                                   JsonElement root,
+                                                   ReferenceResolver resolver,
+                                                   JsonElement documentElements)
+        {
+            var elementReferenceResolver = resolver as ElementReferenceResolver;
+
+            var elementProperties = derivedType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p =>
+            {
+                // Properties which are elements.
+                if (typeof(Element).IsAssignableFrom(p.PropertyType))
+                {
+                    return true;
+                };
+
+                return IsAcceptedCollectionType(p.PropertyType, out _);
+            });
+
+            foreach (var elementProperty in elementProperties)
+            {
+                if (!root.TryGetProperty(elementProperty.Name, out var prop) ||
+                prop.ValueKind == JsonValueKind.Null)
+                {
+                    // You'll get here when you've got a null reference to an element,
+                    // or you've got no element at all in the json. 
+                    // Resolve to an empty id, causing the resolver to return null.
+                    elementReferenceResolver.ResolveReference(string.Empty);
+                    continue;
+                }
+                else if (prop.ValueKind == JsonValueKind.Array)
+                {
+                    foreach (var value in prop.EnumerateArray())
+                    {
+                        if (value.TryGetGuid(out var referenceId))
+                        {
+                            if (documentElements.TryGetProperty(referenceId.ToString(), out var foundElement))
+                            {
+                                if (foundElement.TryGetProperty("discriminator", out var discriminatorProp))
+                                {
+                                    if (elementReferenceResolver.TypeCache.TryGetValue(discriminatorProp.GetString(), out var discriminatorValue))
+                                    {
+                                        HandleReferenceId(value, referenceId, resolver, documentElements, discriminatorValue);
+                                    }
+                                }
+                            }
+                        }
+                        else
+                        {
+                            // The array element is not an element.
+                            // Just deserialize it.
+                        }
+                    }
+                    continue;
+                }
+                else if (prop.ValueKind == JsonValueKind.Object)
+                {
+                    foreach (var innerProp in prop.EnumerateObject())
+                    {
+                        if (innerProp.Value.TryGetGuid(out var referenceId))
+                        {
+                            if (documentElements.TryGetProperty(referenceId.ToString(), out var foundElement))
+                            {
+                                if (foundElement.TryGetProperty("discriminator", out var discriminatorProp))
+                                {
+                                    if (elementReferenceResolver.TypeCache.TryGetValue(discriminatorProp.GetString(), out var discriminatorValue))
+                                    {
+                                        HandleReferenceId(innerProp.Value, referenceId, resolver, documentElements, discriminatorValue);
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    continue;
+                }
+
+                if (prop.TryGetGuid(out var referencedId))
+                {
+                    HandleReferenceId(prop, referencedId, resolver, documentElements, elementProperty.PropertyType);
+                }
+            }
+        }
+
+        private bool IsAcceptedCollectionType(Type propertyType, out CollectionType collectionType)
+        {
+            if (propertyType.IsGenericType)
+            {
+                var def = propertyType.GetGenericTypeDefinition();
+                var args = propertyType.GetGenericArguments();
+
+                // Properties which are List<Element>
+                if (def == typeof(List<>))
+                {
+                    if (typeof(Element).IsAssignableFrom(args[0]))
+                    {
+                        collectionType = CollectionType.List;
+                        return true;
+                    }
+                }
+                // Properties which are Dictionary<Guid, Element> or Dictionary<string, Element>
+                else if (def == typeof(Dictionary<,>))
+                {
+                    if ((args[0] == typeof(Guid) || args[0] == typeof(string)) && typeof(Element).IsAssignableFrom(args[1]))
+                    {
+                        collectionType = CollectionType.Dictionary;
+                        return true;
+                    }
+                }
+            }
+            collectionType = CollectionType.None;
+            return false;
+        }
+
+        private void HandleReferenceId(JsonElement elementToDeserialize,
+                                              Guid referencedId,
+                                              ReferenceResolver resolver,
+                                              JsonElement documentElements,
+                                              Type propertyType)
+        {
+            if (resolver.ResolveReference(referencedId.ToString()) != null)
+            {
+                return;
+            }
+
+            if (documentElements.TryGetProperty(referencedId.ToString(), out var propertyBody))
+            {
+                if (propertyBody.TryGetProperty("discriminator", out _))
+                {
+                    var referencedElement = (Element)elementToDeserialize.Deserialize(propertyType);
+                    resolver.AddReference(referencedId.ToString(), referencedElement);
+                }
+            }
+            else
+            {
+                // The reference cannot be found. It's either not 
+                // a direct reference, as in the case of a cross-model
+                // reference, or it's just broken.
+                resolver.AddReference(referencedId.ToString(), null);
+            }
+        }
+
+        private string GetDiscriminatorName(object value)
+        {
+            var t = value.GetType();
+            if (t.IsGenericType)
+            {
+                return $"{t.FullName.Split('`').First()}<{string.Join(",", t.GenericTypeArguments.Select(arg => arg.FullName))}>";
+            }
+            else
+            {
+                return t.FullName.Split('`').First();
+            }
+        }
+    }
+
+    internal enum CollectionType
+    {
+        None,
+        List,
+        Dictionary
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/ElementConverterFactory.cs b/Elements/src/Serialization/JSON/ElementConverterFactory.cs
new file mode 100644
index 000000000..a1aceb15e
--- /dev/null
+++ b/Elements/src/Serialization/JSON/ElementConverterFactory.cs
@@ -0,0 +1,37 @@
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Elements.Serialization.JSON
+{
+    internal class ElementConverterFactory : JsonConverterFactory
+    {
+        private readonly bool _elementwiseSerialization;
+
+        /// <summary>
+        /// Should the elements be serialized completely? If this option is false,
+        /// elements will be serialized to ids.
+        /// </summary>
+        /// <param name="elementwiseSerialization"></param>
+        public ElementConverterFactory(bool elementwiseSerialization = false)
+        {
+            _elementwiseSerialization = elementwiseSerialization;
+        }
+
+        public override bool CanConvert(Type typeToConvert)
+        {
+            return typeof(Element).IsAssignableFrom(typeToConvert);
+        }
+
+        public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options)
+        {
+            var elementConverter = typeof(ElementConverter<>);
+            var typeArgs = new[] { typeToConvert };
+            var converterType = elementConverter.MakeGenericType(typeArgs);
+            var converter = Activator.CreateInstance(converterType) as JsonConverter;
+            var pi = converterType.GetProperty("ElementwiseSerialization");
+            pi.SetValue(converter, _elementwiseSerialization);
+            return converter;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs b/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
deleted file mode 100644
index 0ad7ba8dd..000000000
--- a/Elements/src/Serialization/JSON/PropertySerializationExtensions.cs
+++ /dev/null
@@ -1,206 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Elements.Serialization.JSON
-{
-    internal enum CollectionType
-    {
-        None,
-        List,
-        Dictionary
-    }
-
-    internal static class PropertySerializationExtensions
-    {
-        public static void WriteProperties(this object value, Utf8JsonWriter writer, JsonSerializerOptions options)
-        {
-            // Inject the discriminator into the serialized JSON.
-            writer.WriteString("discriminator", value.GetDiscriminatorName());
-
-            var pinfos = value.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
-            foreach (var pinfo in pinfos)
-            {
-                // Skip ignored properties
-                var ignoreAttrib = pinfo.GetCustomAttribute<JsonIgnoreAttribute>();
-                if (ignoreAttrib != null)
-                {
-                    continue;
-                }
-
-                // Honor the renaming of a property
-                var nameAttrib = pinfo.GetCustomAttribute<JsonPropertyNameAttribute>();
-
-                writer.WritePropertyName(nameAttrib != null ? nameAttrib.Name : pinfo.Name);
-                JsonSerializer.Serialize(writer, pinfo.GetValue(value), pinfo.PropertyType, options);
-            }
-
-            // Support public fields.
-            var finfos = value.GetType().GetFields(BindingFlags.Public | BindingFlags.Instance);
-            foreach (var finfo in finfos)
-            {
-                var nameAttrib = finfo.GetCustomAttribute<JsonPropertyNameAttribute>();
-
-                writer.WritePropertyName(nameAttrib != null ? nameAttrib.Name : finfo.Name);
-                JsonSerializer.Serialize(writer, finfo.GetValue(value), finfo.FieldType, options);
-            }
-        }
-
-        public static void DeserializeElementProperties(Type derivedType,
-                                                   JsonElement root,
-                                                   ReferenceResolver resolver,
-                                                   JsonElement documentElements)
-        {
-            var elementReferenceResolver = resolver as ElementReferenceResolver;
-
-            var elementProperties = derivedType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p =>
-            {
-                // Properties which are elements.
-                if (typeof(Element).IsAssignableFrom(p.PropertyType))
-                {
-                    return true;
-                };
-
-                return IsAcceptedCollectionType(p.PropertyType, out _);
-            });
-
-            foreach (var elementProperty in elementProperties)
-            {
-                if (!root.TryGetProperty(elementProperty.Name, out var prop) ||
-                prop.ValueKind == JsonValueKind.Null)
-                {
-                    // You'll get here when you've got a null reference to an element,
-                    // or you've got no element at all in the json. 
-                    // Resolve to an empty id, causing the resolver to return null.
-                    elementReferenceResolver.ResolveReference(string.Empty);
-                    continue;
-                }
-                else if (prop.ValueKind == JsonValueKind.Array)
-                {
-                    foreach (var value in prop.EnumerateArray())
-                    {
-                        if (value.TryGetGuid(out var referenceId))
-                        {
-                            if (documentElements.TryGetProperty(referenceId.ToString(), out var foundElement))
-                            {
-                                if (foundElement.TryGetProperty("discriminator", out var discriminatorProp))
-                                {
-                                    if (elementReferenceResolver.TypeCache.TryGetValue(discriminatorProp.GetString(), out var discriminatorValue))
-                                    {
-                                        HandleReferenceId(value, referenceId, resolver, documentElements, discriminatorValue);
-                                    }
-                                }
-                            }
-                        }
-                        else
-                        {
-                            // The array element is not an element.
-                            // Just deserialize it.
-                        }
-                    }
-                    continue;
-                }
-                else if (prop.ValueKind == JsonValueKind.Object)
-                {
-                    foreach (var innerProp in prop.EnumerateObject())
-                    {
-                        if (innerProp.Value.TryGetGuid(out var referenceId))
-                        {
-                            if (documentElements.TryGetProperty(referenceId.ToString(), out var foundElement))
-                            {
-                                if (foundElement.TryGetProperty("discriminator", out var discriminatorProp))
-                                {
-                                    if (elementReferenceResolver.TypeCache.TryGetValue(discriminatorProp.GetString(), out var discriminatorValue))
-                                    {
-                                        HandleReferenceId(innerProp.Value, referenceId, resolver, documentElements, discriminatorValue);
-                                    }
-                                }
-                            }
-                        }
-                    }
-                    continue;
-                }
-
-                if (prop.TryGetGuid(out var referencedId))
-                {
-                    HandleReferenceId(prop, referencedId, resolver, documentElements, elementProperty.PropertyType);
-                }
-            }
-        }
-
-
-        internal static bool IsAcceptedCollectionType(Type propertyType, out CollectionType collectionType)
-        {
-            if (propertyType.IsGenericType)
-            {
-                var def = propertyType.GetGenericTypeDefinition();
-                var args = propertyType.GetGenericArguments();
-
-                // Properties which are List<Element>
-                if (def == typeof(List<>))
-                {
-                    if (typeof(Element).IsAssignableFrom(args[0]))
-                    {
-                        collectionType = CollectionType.List;
-                        return true;
-                    }
-                }
-                // Properties which are Dictionary<Guid, Element> or Dictionary<string, Element>
-                else if (def == typeof(Dictionary<,>))
-                {
-                    if ((args[0] == typeof(Guid) || args[0] == typeof(string)) && typeof(Element).IsAssignableFrom(args[1]))
-                    {
-                        collectionType = CollectionType.Dictionary;
-                        return true;
-                    }
-                }
-            }
-            collectionType = CollectionType.None;
-            return false;
-        }
-
-        private static void HandleReferenceId(JsonElement elementToDeserialize,
-                                              Guid referencedId,
-                                              ReferenceResolver resolver,
-                                              JsonElement documentElements,
-                                              Type propertyType)
-        {
-            if (resolver.ResolveReference(referencedId.ToString()) != null)
-            {
-                return;
-            }
-
-            if (documentElements.TryGetProperty(referencedId.ToString(), out var propertyBody))
-            {
-                if (propertyBody.TryGetProperty("discriminator", out _))
-                {
-                    var referencedElement = (Element)elementToDeserialize.Deserialize(propertyType);
-                    resolver.AddReference(referencedId.ToString(), referencedElement);
-                }
-            }
-            else
-            {
-                // The reference cannot be found. It's either not 
-                // a direct reference, as in the case of a cross-model
-                // reference, or it's just broken.
-                resolver.AddReference(referencedId.ToString(), null);
-            }
-        }
-
-        private static string GetDiscriminatorName(this object value)
-        {
-            var t = value.GetType();
-            if (t.IsGenericType)
-            {
-                return $"{t.FullName.Split('`').First()}<{string.Join(",", t.GenericTypeArguments.Select(arg => arg.FullName))}>";
-            }
-            else
-            {
-                return t.FullName.Split('`').First();
-            }
-        }
-    }
-}
\ No newline at end of file

From 351b8ff5f9efb5b1f132856397514fdea94333be Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 9 May 2022 19:04:49 -0700
Subject: [PATCH 091/150] Cleanup null elements, fixing last test.

---
 Elements/src/Model.cs       | 10 ++++++++++
 Elements/test/ModelTests.cs |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 024f54cad..462a2a70a 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -291,6 +291,9 @@ public static Model FromJson(string json)
 
                 // Use the model converter here so that we have a chance to 
                 // intercept the creation of elements when things go wrong.
+                // Using the model converter adds 100ms because it has to
+                // call deserialize for each element and trap if the element
+                // is null and report an error.
                 // options.Converters.Add(new ModelConverter());
 
                 model = JsonSerializer.Deserialize<Model>(json, options);
@@ -300,6 +303,13 @@ public static Model FromJson(string json)
                 refHandler.Reset(typeCache, elementsElement);
             }
 
+            // Remove null elements that are the result of the deserializer
+            // not being able to handle an element.
+            foreach (var nullElement in model.Elements.Where(e => e.Value == null).ToList())
+            {
+                model.Elements.Remove(nullElement);
+            }
+
             return model;
         }
 
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index d92c952f8..575226ced 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -69,7 +69,7 @@ public void HasOriginAfterSerialization()
         [Fact]
         public void SkipsUnknownTypesDuringDeserialization()
         {
-            // We've changed an Elements.Beam to Elements.Foo
+            // We've put in an Elements.Baz with nothing but a discriminator.
             var modelStr = "{\"Transform\":{\"Matrix\":{\"Components\":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},\"Elements\":{\"c6d1dc68-f800-47c1-9190-745b525ad569\":{\"discriminator\":\"Elements.Baz\"}, \"37f161d6-a892-4588-ad65-457b04b97236\":{\"discriminator\":\"Elements.Geometry.Profiles.WideFlangeProfile\",\"d\":1.1176,\"tw\":0.025908,\"bf\":0.4064,\"tf\":0.044958,\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-0.2032,\"Y\":0.5588,\"Z\":0.0},{\"X\":-0.2032,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":-0.012954,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":-0.012954,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":-0.2032,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":-0.2032,\"Y\":-0.5588,\"Z\":0.0},{\"X\":0.2032,\"Y\":-0.5588,\"Z\":0.0},{\"X\":0.2032,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":0.012954,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":0.012954,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":0.2032,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":0.2032,\"Y\":0.5588,\"Z\":0.0}]},\"Voids\":null,\"Id\":\"37f161d6-a892-4588-ad65-457b04b97236\",\"Name\":\"W44x335\"},\"6b77d69a-204e-40f9-bc1f-ed84683e64c6\":{\"discriminator\":\"Elements.Material\",\"Color\":{\"Red\":0.60000002384185791,\"Green\":0.5,\"Blue\":0.5,\"Alpha\":1.0},\"SpecularFactor\":0.0,\"GlossinessFactor\":0.0,\"Id\":\"6b77d69a-204e-40f9-bc1f-ed84683e64c6\",\"Name\":\"steel\"},\"fd35bd2c-0108-47df-8e6d-42cc43e4eed0\":{\"discriminator\":\"Elements.Foo\",\"Curve\":{\"discriminator\":\"Elements.Geometry.Arc\",\"Center\":{\"X\":0.0,\"Y\":0.0,\"Z\":0.0},\"Radius\":2.0,\"StartAngle\":0.0,\"EndAngle\":90.0},\"StartSetback\":0.25,\"EndSetback\":0.25,\"Profile\":\"37f161d6-a892-4588-ad65-457b04b97236\",\"Transform\":{\"Matrix\":{\"Components\":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},\"Material\":\"6b77d69a-204e-40f9-bc1f-ed84683e64c6\",\"Representation\":{\"SolidOperations\":[{\"discriminator\":\"Elements.Geometry.Solids.Sweep\",\"Profile\":\"37f161d6-a892-4588-ad65-457b04b97236\",\"Curve\":{\"discriminator\":\"Elements.Geometry.Arc\",\"Center\":{\"X\":0.0,\"Y\":0.0,\"Z\":0.0},\"Radius\":2.0,\"StartAngle\":0.0,\"EndAngle\":90.0},\"StartSetback\":0.25,\"EndSetback\":0.25,\"Rotation\":0.0,\"IsVoid\":false}]},\"Id\":\"fd35bd2c-0108-47df-8e6d-42cc43e4eed0\",\"Name\":null}}}";
             var model = Model.FromJson(modelStr);
 

From 0565e4775c61cb9364771d233b39452e525ff48e Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 11 May 2022 18:52:50 -0700
Subject: [PATCH 092/150] Use a slider in the test app.

---
 Elements.Wasm/ElementsAPI.cs         | 48 ++++++++++++++--------------
 Elements.Wasm/wwwroot/index.html     | 12 ++++---
 Elements.Wasm/wwwroot/js/Elements.js |  4 +--
 3 files changed, 33 insertions(+), 31 deletions(-)

diff --git a/Elements.Wasm/ElementsAPI.cs b/Elements.Wasm/ElementsAPI.cs
index 650cc2bc0..f603bcb0f 100644
--- a/Elements.Wasm/ElementsAPI.cs
+++ b/Elements.Wasm/ElementsAPI.cs
@@ -27,7 +27,22 @@ public static Task<string> ModelToGlbBase64(string json)
     }
 
     [JSInvokable]
-    public static Task<TestResult> Test()
+    public static Task<byte[]> ModelToGlbBytes(string json)
+    {
+        Validator.DisableValidationOnConstruction = true;
+
+        var sw = new Stopwatch();
+        sw.Start();
+        var model = Model.FromJson(json);
+        Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the model from json.");
+        sw.Restart();
+        var result = Task.FromResult(model.ToGlTF());
+        Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the glb from json.");
+        return result;
+    }
+
+    [JSInvokable]
+    public static Task<TestResult> Test(int value)
     {
         Validator.DisableValidationOnConstruction = true;
 
@@ -39,7 +54,7 @@ public static Task<TestResult> Test()
         var r = new Random();
         var size = 10;
         var profile = new Profile(Polygon.L(0.1, 0.1, 0.05));
-        for (var i = 0; i < 100; i++)
+        for (var i = 0; i < value; i++)
         {
             var start = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
             var end = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
@@ -52,15 +67,15 @@ public static Task<TestResult> Test()
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating test beams.");
         sw.Restart();
 
-        var json = model.ToJson();
-        sb.AppendLine($"{sw.ElapsedMilliseconds}ms for serializing model.");
-        sw.Restart();
+        // var json = model.ToJson();
+        // sb.AppendLine($"{sw.ElapsedMilliseconds}ms for serializing model.");
+        // sw.Restart();
 
-        var newModel = Model.FromJson(json);
-        sb.AppendLine($"{sw.ElapsedMilliseconds}ms for deserializing model.");
-        sw.Restart();
+        // var newModel = Model.FromJson(json);
+        // sb.AppendLine($"{sw.ElapsedMilliseconds}ms for deserializing model.");
+        // sw.Restart();
 
-        var result = newModel.ToGlTF();
+        var result = model.ToGlTF();
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating the glb.");
         return Task.FromResult<TestResult>(new TestResult()
         {
@@ -74,19 +89,4 @@ public class TestResult
         public byte[]? Glb { get; set; }
         public string? Results { get; set; }
     }
-
-    [JSInvokable]
-    public static Task<byte[]> ModelToGlbBytes(string json)
-    {
-        Validator.DisableValidationOnConstruction = true;
-
-        var sw = new Stopwatch();
-        sw.Start();
-        var model = Model.FromJson(json);
-        Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the model from json.");
-        sw.Restart();
-        var result = Task.FromResult(model.ToGlTF());
-        Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the glb from json.");
-        return result;
-    }
 }
diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index 5c964f8c1..4c069e8fe 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -56,8 +56,8 @@
             document.getElementById("result").innerHTML = "";
         };
 
-        function runTest() {
-            elements.test().then((result) => {
+        function runTest(value) {
+            elements.test(value).then((result) => {
                 document.getElementById("result").innerHTML = result.results
                 model.loadModel(result.glb)
             });
@@ -65,7 +65,7 @@
 
         window.model = {
             reset: () => { reset(); },
-            runTest: () => { runTest(); },
+            runTest: (value) => { runTest(value); },
             loadModel: (glb) => { loadModel(glb) },
         };
 
@@ -96,8 +96,10 @@
 
         animate();
     </script>
-    <button onmousedown="model.reset()" onclick="model.runTest()" type="button"
-        style="position: absolute; left: 50vw; top: 20px">Test!</button>
+    <!-- <button onmousedown="model.reset()" onclick="model.runTest()" type="button"
+        style="position: absolute; left: 50vw; top: 20px">Test!</button> -->
+    <input type="range" min="1" max="100" value="1" class="slider" id="myRange" oninput="model.reset()"
+        onchange="console.debug(this.value);model.runTest(parseFloat(this.value))">
     <div id="result" style="white-space: pre-line; position: absolute; left: 20px; bottom: 20px"></div>
 </body>
 
diff --git a/Elements.Wasm/wwwroot/js/Elements.js b/Elements.Wasm/wwwroot/js/Elements.js
index 988568f8c..a93f9d828 100644
--- a/Elements.Wasm/wwwroot/js/Elements.js
+++ b/Elements.Wasm/wwwroot/js/Elements.js
@@ -11,8 +11,8 @@ class Elements {
         return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlbBytes', json)
     }
 
-    async test() {
-        return DotNet.invokeMethodAsync('Elements.Wasm', 'Test')
+    async test(value) {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'Test', value)
     }
 }
 

From 02d4cea5e1d87c02dfb9e7481cdf3c671488ce27 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 13 May 2022 21:42:30 -0700
Subject: [PATCH 093/150] Use the right converter.

---
 Elements.CodeGeneration/src/Templates/Class.liquid | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements.CodeGeneration/src/Templates/Class.liquid b/Elements.CodeGeneration/src/Templates/Class.liquid
index e8da5126e..82fdfe95a 100644
--- a/Elements.CodeGeneration/src/Templates/Class.liquid
+++ b/Elements.CodeGeneration/src/Templates/Class.liquid
@@ -2,7 +2,7 @@
 /// <summary>{{ Description | csharpdocs }}</summary>
 {% endif -%}
 {% if HasDiscriminator -%}
-[JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "{{ Discriminator }}")]
+[JsonConverter(typeof(ElementConverter<{{ClassName}}>))]
 {% endif -%}
 [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "{{ ToolchainVersion }}")]
 {% if InheritsExceptionSchema -%}

From 9db1f48f41089f3156d8d49dc4e78ed5d7d626c4 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 17 May 2022 10:24:28 -0700
Subject: [PATCH 094/150] Make elements loadable from sub directory.

---
 Elements.Wasm/.gitignore               |     1 +
 Elements.Wasm/Elements.Wasm.csproj     |     2 +
 Elements.Wasm/README.md                |     7 +-
 Elements.Wasm/deploy.sh                |    19 +
 Elements.Wasm/wwwroot/elements.js      |    37 +
 Elements.Wasm/wwwroot/index.html       |     6 +-
 Elements.Wasm/wwwroot/js/Elements.js   |    19 -
 Elements.Wasm/wwwroot/js/GLTFLoader.js |  3186 --
 Elements.Wasm/wwwroot/js/three.js      | 49160 -----------------------
 9 files changed, 62 insertions(+), 52375 deletions(-)
 create mode 100644 Elements.Wasm/.gitignore
 create mode 100755 Elements.Wasm/deploy.sh
 create mode 100644 Elements.Wasm/wwwroot/elements.js
 delete mode 100644 Elements.Wasm/wwwroot/js/Elements.js
 delete mode 100644 Elements.Wasm/wwwroot/js/GLTFLoader.js
 delete mode 100644 Elements.Wasm/wwwroot/js/three.js

diff --git a/Elements.Wasm/.gitignore b/Elements.Wasm/.gitignore
new file mode 100644
index 000000000..3c6742f8d
--- /dev/null
+++ b/Elements.Wasm/.gitignore
@@ -0,0 +1 @@
+deploy
\ No newline at end of file
diff --git a/Elements.Wasm/Elements.Wasm.csproj b/Elements.Wasm/Elements.Wasm.csproj
index 6a0fcb715..2c7565b3b 100644
--- a/Elements.Wasm/Elements.Wasm.csproj
+++ b/Elements.Wasm/Elements.Wasm.csproj
@@ -6,6 +6,8 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
     <RunAOTCompilation>true</RunAOTCompilation>
+    <!-- Don't cache boot resources to avoid checksum failures for re-bundled files. -->
+    <BlazorCacheBootResources>false</BlazorCacheBootResources>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Elements.Wasm/README.md b/Elements.Wasm/README.md
index 61ecbbbc3..5c65d3a80 100644
--- a/Elements.Wasm/README.md
+++ b/Elements.Wasm/README.md
@@ -2,13 +2,8 @@
 This is a minimal web assembly project.
 
 ### Run
-`dotnet watch run`
-
-### Publish
 ```
-dotnet publish -c release
-cd bin/release/net6.0/publish/wwwroot
-python3 -m http.server
+./deploy.sh
 ```
 
 ### Files
diff --git a/Elements.Wasm/deploy.sh b/Elements.Wasm/deploy.sh
new file mode 100755
index 000000000..3f3df8492
--- /dev/null
+++ b/Elements.Wasm/deploy.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+echo 'Building the app.'
+dotnet build -c Release
+
+echo 'Echo creating deploy directory.'
+rm -r deploy
+mkdir deploy
+mkdir deploy/elements
+mkdir deploy/elements/_framework
+
+echo 'Copying assets.'
+rsync -av  --exclude=*.gz --exclude=*.br ./bin/Release/net6.0/wwwroot/_framework deploy/elements
+cp ./wwwroot/elements.js deploy/elements/elements.js 
+cp ./wwwroot/index.html deploy/index.html
+
+echo 'Running the test application.'
+cd deploy
+python3 -m http.server
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/elements.js b/Elements.Wasm/wwwroot/elements.js
new file mode 100644
index 000000000..cc8a5a9f5
--- /dev/null
+++ b/Elements.Wasm/wwwroot/elements.js
@@ -0,0 +1,37 @@
+class Elements {
+    async modelFromJson(json) {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelFromJson', json)
+    }
+
+    async modelToGlbBase64(json) {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlbBase64', json)
+    }
+
+    async modelToGlbBytes(json) {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlbBytes', json)
+    }
+
+    async test(value) {
+        return DotNet.invokeMethodAsync('Elements.Wasm', 'Test', value)
+    }
+}
+
+// We don't autostart blazor so that we can capture
+// the load paths and redirect them to the correct location.
+// https://docs.microsoft.com/en-us/aspnet/core/blazor/fundamentals/startup?view=aspnetcore-6.0
+Blazor.start({
+    loadBootResource: function (type, name, defaultUri, integrity) {
+        // console.log(`Loading: '${type}', '${name}', '${defaultUri}', '${integrity}'`);
+        switch (type) {
+            case 'manifest':
+            case 'assembly':
+            case 'globalization':
+            case 'dotnetjs':
+            case 'dotnetwasm':
+            case 'timezonedata':
+                return `elements/_framework/${name}`;
+        }
+    }
+});
+
+window.elements = new Elements();
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index 4c069e8fe..1b9c29333 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -18,8 +18,8 @@
 </head>
 
 <body>
-    <script type="module" src="js/Elements.js"></script>
-    <script src="_framework/blazor.webassembly.js"></script>
+    <script type="module" src="elements/elements.js"></script>
+    <script src="elements/_framework/blazor.webassembly.js" autostart="false"></script>
     <script type="module-shim">
         function loadModel(glb) {
             const blob = new Blob([new Uint8Array(glb)], { type: "application/octet-stream" });
@@ -96,8 +96,6 @@
 
         animate();
     </script>
-    <!-- <button onmousedown="model.reset()" onclick="model.runTest()" type="button"
-        style="position: absolute; left: 50vw; top: 20px">Test!</button> -->
     <input type="range" min="1" max="100" value="1" class="slider" id="myRange" oninput="model.reset()"
         onchange="console.debug(this.value);model.runTest(parseFloat(this.value))">
     <div id="result" style="white-space: pre-line; position: absolute; left: 20px; bottom: 20px"></div>
diff --git a/Elements.Wasm/wwwroot/js/Elements.js b/Elements.Wasm/wwwroot/js/Elements.js
deleted file mode 100644
index a93f9d828..000000000
--- a/Elements.Wasm/wwwroot/js/Elements.js
+++ /dev/null
@@ -1,19 +0,0 @@
-class Elements {
-    async modelFromJson(json) {
-        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelFromJson', json)
-    }
-
-    async modelToGlbBase64(json) {
-        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlbBase64', json)
-    }
-
-    async modelToGlbBytes(json) {
-        return DotNet.invokeMethodAsync('Elements.Wasm', 'ModelToGlbBytes', json)
-    }
-
-    async test(value) {
-        return DotNet.invokeMethodAsync('Elements.Wasm', 'Test', value)
-    }
-}
-
-window.elements = new Elements();
\ No newline at end of file
diff --git a/Elements.Wasm/wwwroot/js/GLTFLoader.js b/Elements.Wasm/wwwroot/js/GLTFLoader.js
deleted file mode 100644
index b39fa42c6..000000000
--- a/Elements.Wasm/wwwroot/js/GLTFLoader.js
+++ /dev/null
@@ -1,3186 +0,0 @@
-/**
- * @author Rich Tibbett / https://github.com/richtr
- * @author mrdoob / http://mrdoob.com/
- * @author Tony Parisi / http://www.tonyparisi.com/
- * @author Takahiro / https://github.com/takahirox
- * @author Don McCurdy / https://www.donmccurdy.com
- */
-
-THREE.GLTFLoader = ( function () {
-
-	function GLTFLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
-		this.dracoLoader = null;
-
-	}
-
-	GLTFLoader.prototype = {
-
-		constructor: GLTFLoader,
-
-		crossOrigin: 'anonymous',
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var resourcePath;
-
-			if ( this.resourcePath !== undefined ) {
-
-				resourcePath = this.resourcePath;
-
-			} else if ( this.path !== undefined ) {
-
-				resourcePath = this.path;
-
-			} else {
-
-				resourcePath = THREE.LoaderUtils.extractUrlBase( url );
-
-			}
-
-			// Tells the LoadingManager to track an extra item, which resolves after
-			// the model is fully loaded. This means the count of items loaded will
-			// be incorrect, but ensures manager.onLoad() does not fire early.
-			scope.manager.itemStart( url );
-
-			var _onError = function ( e ) {
-
-				if ( onError ) {
-
-					onError( e );
-
-				} else {
-
-					console.error( e );
-
-				}
-
-				scope.manager.itemError( url );
-				scope.manager.itemEnd( url );
-
-			};
-
-			var loader = new THREE.FileLoader( scope.manager );
-
-			loader.setPath( this.path );
-			loader.setResponseType( 'arraybuffer' );
-
-			loader.load( url, function ( data ) {
-
-				try {
-
-					scope.parse( data, resourcePath, function ( gltf ) {
-
-						onLoad( gltf );
-
-						scope.manager.itemEnd( url );
-
-					}, _onError );
-
-				} catch ( e ) {
-
-					_onError( e );
-
-				}
-
-			}, onProgress, _onError );
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		},
-
-		setResourcePath: function ( value ) {
-
-			this.resourcePath = value;
-			return this;
-
-		},
-
-		setDRACOLoader: function ( dracoLoader ) {
-
-			this.dracoLoader = dracoLoader;
-			return this;
-
-		},
-
-		parse: function ( data, path, onLoad, onError ) {
-
-			var content;
-			var extensions = {};
-
-			if ( typeof data === 'string' ) {
-
-				content = data;
-
-			} else {
-
-				var magic = THREE.LoaderUtils.decodeText( new Uint8Array( data, 0, 4 ) );
-
-				if ( magic === BINARY_EXTENSION_HEADER_MAGIC ) {
-
-					try {
-
-						extensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data );
-
-					} catch ( error ) {
-
-						if ( onError ) onError( error );
-						return;
-
-					}
-
-					content = extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content;
-
-				} else {
-
-					content = THREE.LoaderUtils.decodeText( new Uint8Array( data ) );
-
-				}
-
-			}
-
-			var json = JSON.parse( content );
-
-			if ( json.asset === undefined || json.asset.version[ 0 ] < 2 ) {
-
-				if ( onError ) onError( new Error( 'THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported. Use LegacyGLTFLoader instead.' ) );
-				return;
-
-			}
-
-			if ( json.extensionsUsed ) {
-
-				for ( var i = 0; i < json.extensionsUsed.length; ++ i ) {
-
-					var extensionName = json.extensionsUsed[ i ];
-					var extensionsRequired = json.extensionsRequired || [];
-
-					switch ( extensionName ) {
-
-						case EXTENSIONS.KHR_LIGHTS_PUNCTUAL:
-							extensions[ extensionName ] = new GLTFLightsExtension( json );
-							break;
-
-						case EXTENSIONS.KHR_MATERIALS_UNLIT:
-							extensions[ extensionName ] = new GLTFMaterialsUnlitExtension( json );
-							break;
-
-						case EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS:
-							extensions[ extensionName ] = new GLTFMaterialsPbrSpecularGlossinessExtension( json );
-							break;
-
-						case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
-							extensions[ extensionName ] = new GLTFDracoMeshCompressionExtension( json, this.dracoLoader );
-							break;
-
-						case EXTENSIONS.MSFT_TEXTURE_DDS:
-							extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] = new GLTFTextureDDSExtension();
-							break;
-
-						case EXTENSIONS.KHR_TEXTURE_TRANSFORM:
-							extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] = new GLTFTextureTransformExtension( json );
-							break;
-
-						default:
-
-							if ( extensionsRequired.indexOf( extensionName ) >= 0 ) {
-
-								console.warn( 'THREE.GLTFLoader: Unknown extension "' + extensionName + '".' );
-
-							}
-
-					}
-
-				}
-
-			}
-
-			var parser = new GLTFParser( json, extensions, {
-
-				path: path || this.resourcePath || '',
-				crossOrigin: this.crossOrigin,
-				manager: this.manager
-
-			} );
-
-			parser.parse( onLoad, onError );
-
-		}
-
-	};
-
-	/* GLTFREGISTRY */
-
-	function GLTFRegistry() {
-
-		var objects = {};
-
-		return	{
-
-			get: function ( key ) {
-
-				return objects[ key ];
-
-			},
-
-			add: function ( key, object ) {
-
-				objects[ key ] = object;
-
-			},
-
-			remove: function ( key ) {
-
-				delete objects[ key ];
-
-			},
-
-			removeAll: function () {
-
-				objects = {};
-
-			}
-
-		};
-
-	}
-
-	/*********************************/
-	/********** EXTENSIONS ***********/
-	/*********************************/
-
-	var EXTENSIONS = {
-		KHR_BINARY_GLTF: 'KHR_binary_glTF',
-		KHR_DRACO_MESH_COMPRESSION: 'KHR_draco_mesh_compression',
-		KHR_LIGHTS_PUNCTUAL: 'KHR_lights_punctual',
-		KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness',
-		KHR_MATERIALS_UNLIT: 'KHR_materials_unlit',
-		KHR_TEXTURE_TRANSFORM: 'KHR_texture_transform',
-		MSFT_TEXTURE_DDS: 'MSFT_texture_dds'
-	};
-
-	/**
-	 * DDS Texture Extension
-	 *
-	 * Specification:
-	 * https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Vendor/MSFT_texture_dds
-	 *
-	 */
-	function GLTFTextureDDSExtension() {
-
-		if ( ! THREE.DDSLoader ) {
-
-			throw new Error( 'THREE.GLTFLoader: Attempting to load .dds texture without importing THREE.DDSLoader' );
-
-		}
-
-		this.name = EXTENSIONS.MSFT_TEXTURE_DDS;
-		this.ddsLoader = new THREE.DDSLoader();
-
-	}
-
-	/**
-	 * Lights Extension
-	 *
-	 * Specification: PENDING
-	 */
-	function GLTFLightsExtension( json ) {
-
-		this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;
-
-		var extension = ( json.extensions && json.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ] ) || {};
-		this.lightDefs = extension.lights || [];
-
-	}
-
-	GLTFLightsExtension.prototype.loadLight = function ( lightIndex ) {
-
-		var lightDef = this.lightDefs[ lightIndex ];
-		var lightNode;
-
-		var color = new THREE.Color( 0xffffff );
-		if ( lightDef.color !== undefined ) color.fromArray( lightDef.color );
-
-		var range = lightDef.range !== undefined ? lightDef.range : 0;
-
-		switch ( lightDef.type ) {
-
-			case 'directional':
-				lightNode = new THREE.DirectionalLight( color );
-				lightNode.target.position.set( 0, 0, - 1 );
-				lightNode.add( lightNode.target );
-				break;
-
-			case 'point':
-				lightNode = new THREE.PointLight( color );
-				lightNode.distance = range;
-				break;
-
-			case 'spot':
-				lightNode = new THREE.SpotLight( color );
-				lightNode.distance = range;
-				// Handle spotlight properties.
-				lightDef.spot = lightDef.spot || {};
-				lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== undefined ? lightDef.spot.innerConeAngle : 0;
-				lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== undefined ? lightDef.spot.outerConeAngle : Math.PI / 4.0;
-				lightNode.angle = lightDef.spot.outerConeAngle;
-				lightNode.penumbra = 1.0 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
-				lightNode.target.position.set( 0, 0, - 1 );
-				lightNode.add( lightNode.target );
-				break;
-
-			default:
-				throw new Error( 'THREE.GLTFLoader: Unexpected light type, "' + lightDef.type + '".' );
-
-		}
-
-		// Some lights (e.g. spot) default to a position other than the origin. Reset the position
-		// here, because node-level parsing will only override position if explicitly specified.
-		lightNode.position.set( 0, 0, 0 );
-
-		lightNode.decay = 2;
-
-		if ( lightDef.intensity !== undefined ) lightNode.intensity = lightDef.intensity;
-
-		lightNode.name = lightDef.name || ( 'light_' + lightIndex );
-
-		return Promise.resolve( lightNode );
-
-	};
-
-	/**
-	 * Unlit Materials Extension (pending)
-	 *
-	 * PR: https://github.com/KhronosGroup/glTF/pull/1163
-	 */
-	function GLTFMaterialsUnlitExtension() {
-
-		this.name = EXTENSIONS.KHR_MATERIALS_UNLIT;
-
-	}
-
-	GLTFMaterialsUnlitExtension.prototype.getMaterialType = function () {
-
-		return THREE.MeshBasicMaterial;
-
-	};
-
-	GLTFMaterialsUnlitExtension.prototype.extendParams = function ( materialParams, materialDef, parser ) {
-
-		var pending = [];
-
-		materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
-		materialParams.opacity = 1.0;
-
-		var metallicRoughness = materialDef.pbrMetallicRoughness;
-
-		if ( metallicRoughness ) {
-
-			if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
-
-				var array = metallicRoughness.baseColorFactor;
-
-				materialParams.color.fromArray( array );
-				materialParams.opacity = array[ 3 ];
-
-			}
-
-			if ( metallicRoughness.baseColorTexture !== undefined ) {
-
-				pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture ) );
-
-			}
-
-		}
-
-		return Promise.all( pending );
-
-	};
-
-	/* BINARY EXTENSION */
-
-	var BINARY_EXTENSION_BUFFER_NAME = 'binary_glTF';
-	var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
-	var BINARY_EXTENSION_HEADER_LENGTH = 12;
-	var BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 };
-
-	function GLTFBinaryExtension( data ) {
-
-		this.name = EXTENSIONS.KHR_BINARY_GLTF;
-		this.content = null;
-		this.body = null;
-
-		var headerView = new DataView( data, 0, BINARY_EXTENSION_HEADER_LENGTH );
-
-		this.header = {
-			magic: THREE.LoaderUtils.decodeText( new Uint8Array( data.slice( 0, 4 ) ) ),
-			version: headerView.getUint32( 4, true ),
-			length: headerView.getUint32( 8, true )
-		};
-
-		if ( this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC ) {
-
-			throw new Error( 'THREE.GLTFLoader: Unsupported glTF-Binary header.' );
-
-		} else if ( this.header.version < 2.0 ) {
-
-			throw new Error( 'THREE.GLTFLoader: Legacy binary file detected. Use LegacyGLTFLoader instead.' );
-
-		}
-
-		var chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH );
-		var chunkIndex = 0;
-
-		while ( chunkIndex < chunkView.byteLength ) {
-
-			var chunkLength = chunkView.getUint32( chunkIndex, true );
-			chunkIndex += 4;
-
-			var chunkType = chunkView.getUint32( chunkIndex, true );
-			chunkIndex += 4;
-
-			if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON ) {
-
-				var contentArray = new Uint8Array( data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength );
-				this.content = THREE.LoaderUtils.decodeText( contentArray );
-
-			} else if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN ) {
-
-				var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
-				this.body = data.slice( byteOffset, byteOffset + chunkLength );
-
-			}
-
-			// Clients must ignore chunks with unknown types.
-
-			chunkIndex += chunkLength;
-
-		}
-
-		if ( this.content === null ) {
-
-			throw new Error( 'THREE.GLTFLoader: JSON content not found.' );
-
-		}
-
-	}
-
-	/**
-	 * DRACO Mesh Compression Extension
-	 *
-	 * Specification: https://github.com/KhronosGroup/glTF/pull/874
-	 */
-	function GLTFDracoMeshCompressionExtension( json, dracoLoader ) {
-
-		if ( ! dracoLoader ) {
-
-			throw new Error( 'THREE.GLTFLoader: No DRACOLoader instance provided.' );
-
-		}
-
-		this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
-		this.json = json;
-		this.dracoLoader = dracoLoader;
-
-	}
-
-	GLTFDracoMeshCompressionExtension.prototype.decodePrimitive = function ( primitive, parser ) {
-
-		var json = this.json;
-		var dracoLoader = this.dracoLoader;
-		var bufferViewIndex = primitive.extensions[ this.name ].bufferView;
-		var gltfAttributeMap = primitive.extensions[ this.name ].attributes;
-		var threeAttributeMap = {};
-		var attributeNormalizedMap = {};
-		var attributeTypeMap = {};
-
-		for ( var attributeName in gltfAttributeMap ) {
-
-			var threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
-
-			threeAttributeMap[ threeAttributeName ] = gltfAttributeMap[ attributeName ];
-
-		}
-
-		for ( attributeName in primitive.attributes ) {
-
-			var threeAttributeName = ATTRIBUTES[ attributeName ] || attributeName.toLowerCase();
-
-			if ( gltfAttributeMap[ attributeName ] !== undefined ) {
-
-				var accessorDef = json.accessors[ primitive.attributes[ attributeName ] ];
-				var componentType = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
-
-				attributeTypeMap[ threeAttributeName ] = componentType;
-				attributeNormalizedMap[ threeAttributeName ] = accessorDef.normalized === true;
-
-			}
-
-		}
-
-		return parser.getDependency( 'bufferView', bufferViewIndex ).then( function ( bufferView ) {
-
-			return new Promise( function ( resolve ) {
-
-				dracoLoader.decodeDracoFile( bufferView, function ( geometry ) {
-
-					for ( var attributeName in geometry.attributes ) {
-
-						var attribute = geometry.attributes[ attributeName ];
-						var normalized = attributeNormalizedMap[ attributeName ];
-
-						if ( normalized !== undefined ) attribute.normalized = normalized;
-
-					}
-
-					resolve( geometry );
-
-				}, threeAttributeMap, attributeTypeMap );
-
-			} );
-
-		} );
-
-	};
-
-	/**
-	 * Texture Transform Extension
-	 *
-	 * Specification:
-	 */
-	function GLTFTextureTransformExtension() {
-
-		this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM;
-
-	}
-
-	GLTFTextureTransformExtension.prototype.extendTexture = function ( texture, transform ) {
-
-		texture = texture.clone();
-
-		if ( transform.offset !== undefined ) {
-
-			texture.offset.fromArray( transform.offset );
-
-		}
-
-		if ( transform.rotation !== undefined ) {
-
-			texture.rotation = transform.rotation;
-
-		}
-
-		if ( transform.scale !== undefined ) {
-
-			texture.repeat.fromArray( transform.scale );
-
-		}
-
-		if ( transform.texCoord !== undefined ) {
-
-			console.warn( 'THREE.GLTFLoader: Custom UV sets in "' + this.name + '" extension not yet supported.' );
-
-		}
-
-		texture.needsUpdate = true;
-
-		return texture;
-
-	};
-
-	/**
-	 * Specular-Glossiness Extension
-	 *
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness
-	 */
-	function GLTFMaterialsPbrSpecularGlossinessExtension() {
-
-		return {
-
-			name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,
-
-			specularGlossinessParams: [
-				'color',
-				'map',
-				'lightMap',
-				'lightMapIntensity',
-				'aoMap',
-				'aoMapIntensity',
-				'emissive',
-				'emissiveIntensity',
-				'emissiveMap',
-				'bumpMap',
-				'bumpScale',
-				'normalMap',
-				'displacementMap',
-				'displacementScale',
-				'displacementBias',
-				'specularMap',
-				'specular',
-				'glossinessMap',
-				'glossiness',
-				'alphaMap',
-				'envMap',
-				'envMapIntensity',
-				'refractionRatio',
-			],
-
-			getMaterialType: function () {
-
-				return THREE.ShaderMaterial;
-
-			},
-
-			extendParams: function ( materialParams, materialDef, parser ) {
-
-				var pbrSpecularGlossiness = materialDef.extensions[ this.name ];
-
-				var shader = THREE.ShaderLib[ 'standard' ];
-
-				var uniforms = THREE.UniformsUtils.clone( shader.uniforms );
-
-				var specularMapParsFragmentChunk = [
-					'#ifdef USE_SPECULARMAP',
-					'	uniform sampler2D specularMap;',
-					'#endif'
-				].join( '\n' );
-
-				var glossinessMapParsFragmentChunk = [
-					'#ifdef USE_GLOSSINESSMAP',
-					'	uniform sampler2D glossinessMap;',
-					'#endif'
-				].join( '\n' );
-
-				var specularMapFragmentChunk = [
-					'vec3 specularFactor = specular;',
-					'#ifdef USE_SPECULARMAP',
-					'	vec4 texelSpecular = texture2D( specularMap, vUv );',
-					'	texelSpecular = sRGBToLinear( texelSpecular );',
-					'	// reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture',
-					'	specularFactor *= texelSpecular.rgb;',
-					'#endif'
-				].join( '\n' );
-
-				var glossinessMapFragmentChunk = [
-					'float glossinessFactor = glossiness;',
-					'#ifdef USE_GLOSSINESSMAP',
-					'	vec4 texelGlossiness = texture2D( glossinessMap, vUv );',
-					'	// reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture',
-					'	glossinessFactor *= texelGlossiness.a;',
-					'#endif'
-				].join( '\n' );
-
-				var lightPhysicalFragmentChunk = [
-					'PhysicalMaterial material;',
-					'material.diffuseColor = diffuseColor.rgb;',
-					'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );',
-					'material.specularColor = specularFactor.rgb;',
-				].join( '\n' );
-
-				var fragmentShader = shader.fragmentShader
-					.replace( 'uniform float roughness;', 'uniform vec3 specular;' )
-					.replace( 'uniform float metalness;', 'uniform float glossiness;' )
-					.replace( '#include <roughnessmap_pars_fragment>', specularMapParsFragmentChunk )
-					.replace( '#include <metalnessmap_pars_fragment>', glossinessMapParsFragmentChunk )
-					.replace( '#include <roughnessmap_fragment>', specularMapFragmentChunk )
-					.replace( '#include <metalnessmap_fragment>', glossinessMapFragmentChunk )
-					.replace( '#include <lights_physical_fragment>', lightPhysicalFragmentChunk );
-
-				delete uniforms.roughness;
-				delete uniforms.metalness;
-				delete uniforms.roughnessMap;
-				delete uniforms.metalnessMap;
-
-				uniforms.specular = { value: new THREE.Color().setHex( 0x111111 ) };
-				uniforms.glossiness = { value: 0.5 };
-				uniforms.specularMap = { value: null };
-				uniforms.glossinessMap = { value: null };
-
-				materialParams.vertexShader = shader.vertexShader;
-				materialParams.fragmentShader = fragmentShader;
-				materialParams.uniforms = uniforms;
-				materialParams.defines = { 'STANDARD': '' };
-
-				materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
-				materialParams.opacity = 1.0;
-
-				var pending = [];
-
-				if ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) {
-
-					var array = pbrSpecularGlossiness.diffuseFactor;
-
-					materialParams.color.fromArray( array );
-					materialParams.opacity = array[ 3 ];
-
-				}
-
-				if ( pbrSpecularGlossiness.diffuseTexture !== undefined ) {
-
-					pending.push( parser.assignTexture( materialParams, 'map', pbrSpecularGlossiness.diffuseTexture ) );
-
-				}
-
-				materialParams.emissive = new THREE.Color( 0.0, 0.0, 0.0 );
-				materialParams.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
-				materialParams.specular = new THREE.Color( 1.0, 1.0, 1.0 );
-
-				if ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) {
-
-					materialParams.specular.fromArray( pbrSpecularGlossiness.specularFactor );
-
-				}
-
-				if ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) {
-
-					var specGlossMapDef = pbrSpecularGlossiness.specularGlossinessTexture;
-					pending.push( parser.assignTexture( materialParams, 'glossinessMap', specGlossMapDef ) );
-					pending.push( parser.assignTexture( materialParams, 'specularMap', specGlossMapDef ) );
-
-				}
-
-				return Promise.all( pending );
-
-			},
-
-			createMaterial: function ( params ) {
-
-				// setup material properties based on MeshStandardMaterial for Specular-Glossiness
-
-				var material = new THREE.ShaderMaterial( {
-					defines: params.defines,
-					vertexShader: params.vertexShader,
-					fragmentShader: params.fragmentShader,
-					uniforms: params.uniforms,
-					fog: true,
-					lights: true,
-					opacity: params.opacity,
-					transparent: params.transparent
-				} );
-
-				material.isGLTFSpecularGlossinessMaterial = true;
-
-				material.color = params.color;
-
-				material.map = params.map === undefined ? null : params.map;
-
-				material.lightMap = null;
-				material.lightMapIntensity = 1.0;
-
-				material.aoMap = params.aoMap === undefined ? null : params.aoMap;
-				material.aoMapIntensity = 1.0;
-
-				material.emissive = params.emissive;
-				material.emissiveIntensity = 1.0;
-				material.emissiveMap = params.emissiveMap === undefined ? null : params.emissiveMap;
-
-				material.bumpMap = params.bumpMap === undefined ? null : params.bumpMap;
-				material.bumpScale = 1;
-
-				material.normalMap = params.normalMap === undefined ? null : params.normalMap;
-
-				if ( params.normalScale ) material.normalScale = params.normalScale;
-
-				material.displacementMap = null;
-				material.displacementScale = 1;
-				material.displacementBias = 0;
-
-				material.specularMap = params.specularMap === undefined ? null : params.specularMap;
-				material.specular = params.specular;
-
-				material.glossinessMap = params.glossinessMap === undefined ? null : params.glossinessMap;
-				material.glossiness = params.glossiness;
-
-				material.alphaMap = null;
-
-				material.envMap = params.envMap === undefined ? null : params.envMap;
-				material.envMapIntensity = 1.0;
-
-				material.refractionRatio = 0.98;
-
-				material.extensions.derivatives = true;
-
-				return material;
-
-			},
-
-			/**
-			 * Clones a GLTFSpecularGlossinessMaterial instance. The ShaderMaterial.copy() method can
-			 * copy only properties it knows about or inherits, and misses many properties that would
-			 * normally be defined by MeshStandardMaterial.
-			 *
-			 * This method allows GLTFSpecularGlossinessMaterials to be cloned in the process of
-			 * loading a glTF model, but cloning later (e.g. by the user) would require these changes
-			 * AND also updating `.onBeforeRender` on the parent mesh.
-			 *
-			 * @param  {THREE.ShaderMaterial} source
-			 * @return {THREE.ShaderMaterial}
-			 */
-			cloneMaterial: function ( source ) {
-
-				var target = source.clone();
-
-				target.isGLTFSpecularGlossinessMaterial = true;
-
-				var params = this.specularGlossinessParams;
-
-				for ( var i = 0, il = params.length; i < il; i ++ ) {
-
-					var value = source[ params[ i ] ];
-					target[ params[ i ] ] = ( value && value.isColor ) ? value.clone() : value;
-
-				}
-
-				return target;
-
-			},
-
-			// Here's based on refreshUniformsCommon() and refreshUniformsStandard() in WebGLRenderer.
-			refreshUniforms: function ( renderer, scene, camera, geometry, material, group ) {
-
-				if ( material.isGLTFSpecularGlossinessMaterial !== true ) {
-
-					return;
-
-				}
-
-				var uniforms = material.uniforms;
-				var defines = material.defines;
-
-				uniforms.opacity.value = material.opacity;
-
-				uniforms.diffuse.value.copy( material.color );
-				uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );
-
-				uniforms.map.value = material.map;
-				uniforms.specularMap.value = material.specularMap;
-				uniforms.alphaMap.value = material.alphaMap;
-
-				uniforms.lightMap.value = material.lightMap;
-				uniforms.lightMapIntensity.value = material.lightMapIntensity;
-
-				uniforms.aoMap.value = material.aoMap;
-				uniforms.aoMapIntensity.value = material.aoMapIntensity;
-
-				// uv repeat and offset setting priorities
-				// 1. color map
-				// 2. specular map
-				// 3. normal map
-				// 4. bump map
-				// 5. alpha map
-				// 6. emissive map
-
-				var uvScaleMap;
-
-				if ( material.map ) {
-
-					uvScaleMap = material.map;
-
-				} else if ( material.specularMap ) {
-
-					uvScaleMap = material.specularMap;
-
-				} else if ( material.displacementMap ) {
-
-					uvScaleMap = material.displacementMap;
-
-				} else if ( material.normalMap ) {
-
-					uvScaleMap = material.normalMap;
-
-				} else if ( material.bumpMap ) {
-
-					uvScaleMap = material.bumpMap;
-
-				} else if ( material.glossinessMap ) {
-
-					uvScaleMap = material.glossinessMap;
-
-				} else if ( material.alphaMap ) {
-
-					uvScaleMap = material.alphaMap;
-
-				} else if ( material.emissiveMap ) {
-
-					uvScaleMap = material.emissiveMap;
-
-				}
-
-				if ( uvScaleMap !== undefined ) {
-
-					// backwards compatibility
-					if ( uvScaleMap.isWebGLRenderTarget ) {
-
-						uvScaleMap = uvScaleMap.texture;
-
-					}
-
-					if ( uvScaleMap.matrixAutoUpdate === true ) {
-
-						uvScaleMap.updateMatrix();
-
-					}
-
-					uniforms.uvTransform.value.copy( uvScaleMap.matrix );
-
-				}
-
-				if ( material.envMap ) {
-
-					uniforms.envMap.value = material.envMap;
-					uniforms.envMapIntensity.value = material.envMapIntensity;
-
-					// don't flip CubeTexture envMaps, flip everything else:
-					//  WebGLRenderTargetCube will be flipped for backwards compatibility
-					//  WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture
-					// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future
-					uniforms.flipEnvMap.value = material.envMap.isCubeTexture ? - 1 : 1;
-
-					uniforms.reflectivity.value = material.reflectivity;
-					uniforms.refractionRatio.value = material.refractionRatio;
-
-					uniforms.maxMipLevel.value = renderer.properties.get( material.envMap ).__maxMipLevel;
-
-				}
-
-				uniforms.specular.value.copy( material.specular );
-				uniforms.glossiness.value = material.glossiness;
-
-				uniforms.glossinessMap.value = material.glossinessMap;
-
-				uniforms.emissiveMap.value = material.emissiveMap;
-				uniforms.bumpMap.value = material.bumpMap;
-				uniforms.normalMap.value = material.normalMap;
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-				if ( uniforms.glossinessMap.value !== null && defines.USE_GLOSSINESSMAP === undefined ) {
-
-					defines.USE_GLOSSINESSMAP = '';
-					// set USE_ROUGHNESSMAP to enable vUv
-					defines.USE_ROUGHNESSMAP = '';
-
-				}
-
-				if ( uniforms.glossinessMap.value === null && defines.USE_GLOSSINESSMAP !== undefined ) {
-
-					delete defines.USE_GLOSSINESSMAP;
-					delete defines.USE_ROUGHNESSMAP;
-
-				}
-
-			}
-
-		};
-
-	}
-
-	/*********************************/
-	/********** INTERPOLATION ********/
-	/*********************************/
-
-	// Spline Interpolation
-	// Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation
-	function GLTFCubicSplineInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		THREE.Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-	}
-
-	GLTFCubicSplineInterpolant.prototype = Object.create( THREE.Interpolant.prototype );
-	GLTFCubicSplineInterpolant.prototype.constructor = GLTFCubicSplineInterpolant;
-
-	GLTFCubicSplineInterpolant.prototype.copySampleValue_ = function ( index ) {
-
-		// Copies a sample value to the result buffer. See description of glTF
-		// CUBICSPLINE values layout in interpolate_() function below.
-
-		var result = this.resultBuffer,
-			values = this.sampleValues,
-			valueSize = this.valueSize,
-			offset = index * valueSize * 3 + valueSize;
-
-		for ( var i = 0; i !== valueSize; i ++ ) {
-
-			result[ i ] = values[ offset + i ];
-
-		}
-
-		return result;
-
-	};
-
-	GLTFCubicSplineInterpolant.prototype.beforeStart_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
-
-	GLTFCubicSplineInterpolant.prototype.afterEnd_ = GLTFCubicSplineInterpolant.prototype.copySampleValue_;
-
-	GLTFCubicSplineInterpolant.prototype.interpolate_ = function ( i1, t0, t, t1 ) {
-
-		var result = this.resultBuffer;
-		var values = this.sampleValues;
-		var stride = this.valueSize;
-
-		var stride2 = stride * 2;
-		var stride3 = stride * 3;
-
-		var td = t1 - t0;
-
-		var p = ( t - t0 ) / td;
-		var pp = p * p;
-		var ppp = pp * p;
-
-		var offset1 = i1 * stride3;
-		var offset0 = offset1 - stride3;
-
-		var s2 = - 2 * ppp + 3 * pp;
-		var s3 = ppp - pp;
-		var s0 = 1 - s2;
-		var s1 = s3 - pp + p;
-
-		// Layout of keyframe output values for CUBICSPLINE animations:
-		//   [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]
-		for ( var i = 0; i !== stride; i ++ ) {
-
-			var p0 = values[ offset0 + i + stride ]; // splineVertex_k
-			var m0 = values[ offset0 + i + stride2 ] * td; // outTangent_k * (t_k+1 - t_k)
-			var p1 = values[ offset1 + i + stride ]; // splineVertex_k+1
-			var m1 = values[ offset1 + i ] * td; // inTangent_k+1 * (t_k+1 - t_k)
-
-			result[ i ] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1;
-
-		}
-
-		return result;
-
-	};
-
-	/*********************************/
-	/********** INTERNALS ************/
-	/*********************************/
-
-	/* CONSTANTS */
-
-	var WEBGL_CONSTANTS = {
-		FLOAT: 5126,
-		//FLOAT_MAT2: 35674,
-		FLOAT_MAT3: 35675,
-		FLOAT_MAT4: 35676,
-		FLOAT_VEC2: 35664,
-		FLOAT_VEC3: 35665,
-		FLOAT_VEC4: 35666,
-		LINEAR: 9729,
-		REPEAT: 10497,
-		SAMPLER_2D: 35678,
-		POINTS: 0,
-		LINES: 1,
-		LINE_LOOP: 2,
-		LINE_STRIP: 3,
-		TRIANGLES: 4,
-		TRIANGLE_STRIP: 5,
-		TRIANGLE_FAN: 6,
-		UNSIGNED_BYTE: 5121,
-		UNSIGNED_SHORT: 5123
-	};
-
-	var WEBGL_TYPE = {
-		5126: Number,
-		//35674: THREE.Matrix2,
-		35675: THREE.Matrix3,
-		35676: THREE.Matrix4,
-		35664: THREE.Vector2,
-		35665: THREE.Vector3,
-		35666: THREE.Vector4,
-		35678: THREE.Texture
-	};
-
-	var WEBGL_COMPONENT_TYPES = {
-		5120: Int8Array,
-		5121: Uint8Array,
-		5122: Int16Array,
-		5123: Uint16Array,
-		5125: Uint32Array,
-		5126: Float32Array
-	};
-
-	var WEBGL_FILTERS = {
-		9728: THREE.NearestFilter,
-		9729: THREE.LinearFilter,
-		9984: THREE.NearestMipMapNearestFilter,
-		9985: THREE.LinearMipMapNearestFilter,
-		9986: THREE.NearestMipMapLinearFilter,
-		9987: THREE.LinearMipMapLinearFilter
-	};
-
-	var WEBGL_WRAPPINGS = {
-		33071: THREE.ClampToEdgeWrapping,
-		33648: THREE.MirroredRepeatWrapping,
-		10497: THREE.RepeatWrapping
-	};
-
-	var WEBGL_SIDES = {
-		1028: THREE.BackSide, // Culling front
-		1029: THREE.FrontSide // Culling back
-		//1032: THREE.NoSide   // Culling front and back, what to do?
-	};
-
-	var WEBGL_DEPTH_FUNCS = {
-		512: THREE.NeverDepth,
-		513: THREE.LessDepth,
-		514: THREE.EqualDepth,
-		515: THREE.LessEqualDepth,
-		516: THREE.GreaterEqualDepth,
-		517: THREE.NotEqualDepth,
-		518: THREE.GreaterEqualDepth,
-		519: THREE.AlwaysDepth
-	};
-
-	var WEBGL_BLEND_EQUATIONS = {
-		32774: THREE.AddEquation,
-		32778: THREE.SubtractEquation,
-		32779: THREE.ReverseSubtractEquation
-	};
-
-	var WEBGL_BLEND_FUNCS = {
-		0: THREE.ZeroFactor,
-		1: THREE.OneFactor,
-		768: THREE.SrcColorFactor,
-		769: THREE.OneMinusSrcColorFactor,
-		770: THREE.SrcAlphaFactor,
-		771: THREE.OneMinusSrcAlphaFactor,
-		772: THREE.DstAlphaFactor,
-		773: THREE.OneMinusDstAlphaFactor,
-		774: THREE.DstColorFactor,
-		775: THREE.OneMinusDstColorFactor,
-		776: THREE.SrcAlphaSaturateFactor
-		// The followings are not supported by Three.js yet
-		//32769: CONSTANT_COLOR,
-		//32770: ONE_MINUS_CONSTANT_COLOR,
-		//32771: CONSTANT_ALPHA,
-		//32772: ONE_MINUS_CONSTANT_COLOR
-	};
-
-	var WEBGL_TYPE_SIZES = {
-		'SCALAR': 1,
-		'VEC2': 2,
-		'VEC3': 3,
-		'VEC4': 4,
-		'MAT2': 4,
-		'MAT3': 9,
-		'MAT4': 16
-	};
-
-	var ATTRIBUTES = {
-		POSITION: 'position',
-		NORMAL: 'normal',
-		TANGENT: 'tangent',
-		TEXCOORD_0: 'uv',
-		TEXCOORD_1: 'uv2',
-		COLOR_0: 'color',
-		WEIGHTS_0: 'skinWeight',
-		JOINTS_0: 'skinIndex',
-	};
-
-	var PATH_PROPERTIES = {
-		scale: 'scale',
-		translation: 'position',
-		rotation: 'quaternion',
-		weights: 'morphTargetInfluences'
-	};
-
-	var INTERPOLATION = {
-		CUBICSPLINE: undefined, // We use a custom interpolant (GLTFCubicSplineInterpolation) for CUBICSPLINE tracks. Each
-		                        // keyframe track will be initialized with a default interpolation type, then modified.
-		LINEAR: THREE.InterpolateLinear,
-		STEP: THREE.InterpolateDiscrete
-	};
-
-	var STATES_ENABLES = {
-		2884: 'CULL_FACE',
-		2929: 'DEPTH_TEST',
-		3042: 'BLEND',
-		3089: 'SCISSOR_TEST',
-		32823: 'POLYGON_OFFSET_FILL',
-		32926: 'SAMPLE_ALPHA_TO_COVERAGE'
-	};
-
-	var ALPHA_MODES = {
-		OPAQUE: 'OPAQUE',
-		MASK: 'MASK',
-		BLEND: 'BLEND'
-	};
-
-	var MIME_TYPE_FORMATS = {
-		'image/png': THREE.RGBAFormat,
-		'image/jpeg': THREE.RGBFormat
-	};
-
-	/* UTILITY FUNCTIONS */
-
-	function resolveURL( url, path ) {
-
-		// Invalid URL
-		if ( typeof url !== 'string' || url === '' ) return '';
-
-		// Absolute URL http://,https://,//
-		if ( /^(https?:)?\/\//i.test( url ) ) return url;
-
-		// Data URI
-		if ( /^data:.*,.*$/i.test( url ) ) return url;
-
-		// Blob URL
-		if ( /^blob:.*$/i.test( url ) ) return url;
-
-		// Relative URL
-		return path + url;
-
-	}
-
-	var defaultMaterial;
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material
-	 */
-	function createDefaultMaterial() {
-
-		defaultMaterial = defaultMaterial || new THREE.MeshStandardMaterial( {
-			color: 0xFFFFFF,
-			emissive: 0x000000,
-			metalness: 1,
-			roughness: 1,
-			transparent: false,
-			depthTest: true,
-			side: THREE.FrontSide
-		} );
-
-		return defaultMaterial;
-
-	}
-
-	function addUnknownExtensionsToUserData( knownExtensions, object, objectDef ) {
-
-		// Add unknown glTF extensions to an object's userData.
-
-		for ( var name in objectDef.extensions ) {
-
-			if ( knownExtensions[ name ] === undefined ) {
-
-				object.userData.gltfExtensions = object.userData.gltfExtensions || {};
-				object.userData.gltfExtensions[ name ] = objectDef.extensions[ name ];
-
-			}
-
-		}
-
-	}
-
-	/**
-	 * @param {THREE.Object3D|THREE.Material|THREE.BufferGeometry} object
-	 * @param {GLTF.definition} gltfDef
-	 */
-	function assignExtrasToUserData( object, gltfDef ) {
-
-		if ( gltfDef.extras !== undefined ) {
-
-			if ( typeof gltfDef.extras === 'object' ) {
-
-				Object.assign( object.userData, gltfDef.extras );
-
-			} else {
-
-				console.warn( 'THREE.GLTFLoader: Ignoring primitive type .extras, ' + gltfDef.extras );
-
-			}
-
-		}
-
-	}
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#morph-targets
-	 *
-	 * @param {THREE.BufferGeometry} geometry
-	 * @param {Array<GLTF.Target>} targets
-	 * @param {GLTFParser} parser
-	 * @return {Promise<THREE.BufferGeometry>}
-	 */
-	function addMorphTargets( geometry, targets, parser ) {
-
-		var hasMorphPosition = false;
-		var hasMorphNormal = false;
-
-		for ( var i = 0, il = targets.length; i < il; i ++ ) {
-
-			var target = targets[ i ];
-
-			if ( target.POSITION !== undefined ) hasMorphPosition = true;
-			if ( target.NORMAL !== undefined ) hasMorphNormal = true;
-
-			if ( hasMorphPosition && hasMorphNormal ) break;
-
-		}
-
-		if ( ! hasMorphPosition && ! hasMorphNormal ) return Promise.resolve( geometry );
-
-		var pendingPositionAccessors = [];
-		var pendingNormalAccessors = [];
-
-		for ( var i = 0, il = targets.length; i < il; i ++ ) {
-
-			var target = targets[ i ];
-
-			if ( hasMorphPosition ) {
-
-				var pendingAccessor = target.POSITION !== undefined
-					? parser.getDependency( 'accessor', target.POSITION )
-					: geometry.attributes.position;
-
-				pendingPositionAccessors.push( pendingAccessor );
-
-			}
-
-			if ( hasMorphNormal ) {
-
-				var pendingAccessor = target.NORMAL !== undefined
-					? parser.getDependency( 'accessor', target.NORMAL )
-					: geometry.attributes.normal;
-
-				pendingNormalAccessors.push( pendingAccessor );
-
-			}
-
-		}
-
-		return Promise.all( [
-			Promise.all( pendingPositionAccessors ),
-			Promise.all( pendingNormalAccessors )
-		] ).then( function ( accessors ) {
-
-			var morphPositions = accessors[ 0 ];
-			var morphNormals = accessors[ 1 ];
-
-			// Clone morph target accessors before modifying them.
-
-			for ( var i = 0, il = morphPositions.length; i < il; i ++ ) {
-
-				if ( geometry.attributes.position === morphPositions[ i ] ) continue;
-
-				morphPositions[ i ] = cloneBufferAttribute( morphPositions[ i ] );
-
-			}
-
-			for ( var i = 0, il = morphNormals.length; i < il; i ++ ) {
-
-				if ( geometry.attributes.normal === morphNormals[ i ] ) continue;
-
-				morphNormals[ i ] = cloneBufferAttribute( morphNormals[ i ] );
-
-			}
-
-			for ( var i = 0, il = targets.length; i < il; i ++ ) {
-
-				var target = targets[ i ];
-				var attributeName = 'morphTarget' + i;
-
-				if ( hasMorphPosition ) {
-
-					// Three.js morph position is absolute value. The formula is
-					//   basePosition
-					//     + weight0 * ( morphPosition0 - basePosition )
-					//     + weight1 * ( morphPosition1 - basePosition )
-					//     ...
-					// while the glTF one is relative
-					//   basePosition
-					//     + weight0 * glTFmorphPosition0
-					//     + weight1 * glTFmorphPosition1
-					//     ...
-					// then we need to convert from relative to absolute here.
-
-					if ( target.POSITION !== undefined ) {
-
-						var positionAttribute = morphPositions[ i ];
-						positionAttribute.name = attributeName;
-
-						var position = geometry.attributes.position;
-
-						for ( var j = 0, jl = positionAttribute.count; j < jl; j ++ ) {
-
-							positionAttribute.setXYZ(
-								j,
-								positionAttribute.getX( j ) + position.getX( j ),
-								positionAttribute.getY( j ) + position.getY( j ),
-								positionAttribute.getZ( j ) + position.getZ( j )
-							);
-
-						}
-
-					}
-
-				}
-
-				if ( hasMorphNormal ) {
-
-					// see target.POSITION's comment
-
-					if ( target.NORMAL !== undefined ) {
-
-						var normalAttribute = morphNormals[ i ];
-						normalAttribute.name = attributeName;
-
-						var normal = geometry.attributes.normal;
-
-						for ( var j = 0, jl = normalAttribute.count; j < jl; j ++ ) {
-
-							normalAttribute.setXYZ(
-								j,
-								normalAttribute.getX( j ) + normal.getX( j ),
-								normalAttribute.getY( j ) + normal.getY( j ),
-								normalAttribute.getZ( j ) + normal.getZ( j )
-							);
-
-						}
-
-					}
-
-				}
-
-			}
-
-			if ( hasMorphPosition ) geometry.morphAttributes.position = morphPositions;
-			if ( hasMorphNormal ) geometry.morphAttributes.normal = morphNormals;
-
-			return geometry;
-
-		} );
-
-	}
-
-	/**
-	 * @param {THREE.Mesh} mesh
-	 * @param {GLTF.Mesh} meshDef
-	 */
-	function updateMorphTargets( mesh, meshDef ) {
-
-		mesh.updateMorphTargets();
-
-		if ( meshDef.weights !== undefined ) {
-
-			for ( var i = 0, il = meshDef.weights.length; i < il; i ++ ) {
-
-				mesh.morphTargetInfluences[ i ] = meshDef.weights[ i ];
-
-			}
-
-		}
-
-		// .extras has user-defined data, so check that .extras.targetNames is an array.
-		if ( meshDef.extras && Array.isArray( meshDef.extras.targetNames ) ) {
-
-			var targetNames = meshDef.extras.targetNames;
-
-			if ( mesh.morphTargetInfluences.length === targetNames.length ) {
-
-				mesh.morphTargetDictionary = {};
-
-				for ( var i = 0, il = targetNames.length; i < il; i ++ ) {
-
-					mesh.morphTargetDictionary[ targetNames[ i ] ] = i;
-
-				}
-
-			} else {
-
-				console.warn( 'THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.' );
-
-			}
-
-		}
-
-	}
-	function isObjectEqual( a, b ) {
-
-		if ( Object.keys( a ).length !== Object.keys( b ).length ) return false;
-
-		for ( var key in a ) {
-
-			if ( a[ key ] !== b[ key ] ) return false;
-
-		}
-
-		return true;
-
-	}
-
-	function createPrimitiveKey( primitiveDef ) {
-
-		var dracoExtension = primitiveDef.extensions && primitiveDef.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ];
-		var geometryKey;
-
-		if ( dracoExtension ) {
-
-			geometryKey = 'draco:' + dracoExtension.bufferView
-				+ ':' + dracoExtension.indices
-				+ ':' + createAttributesKey( dracoExtension.attributes );
-
-		} else {
-
-			geometryKey = primitiveDef.indices + ':' + createAttributesKey( primitiveDef.attributes ) + ':' + primitiveDef.mode;
-
-		}
-
-		return geometryKey;
-
-	}
-
-	function createAttributesKey( attributes ) {
-
-		var attributesKey = '';
-
-		var keys = Object.keys( attributes ).sort();
-
-		for ( var i = 0, il = keys.length; i < il; i ++ ) {
-
-			attributesKey += keys[ i ] + ':' + attributes[ keys[ i ] ] + ';';
-
-		}
-
-		return attributesKey;
-
-	}
-
-	function cloneBufferAttribute( attribute ) {
-
-		if ( attribute.isInterleavedBufferAttribute ) {
-
-			var count = attribute.count;
-			var itemSize = attribute.itemSize;
-			var array = attribute.array.slice( 0, count * itemSize );
-
-			for ( var i = 0, j = 0; i < count; ++ i ) {
-
-				array[ j ++ ] = attribute.getX( i );
-				if ( itemSize >= 2 ) array[ j ++ ] = attribute.getY( i );
-				if ( itemSize >= 3 ) array[ j ++ ] = attribute.getZ( i );
-				if ( itemSize >= 4 ) array[ j ++ ] = attribute.getW( i );
-
-			}
-
-			return new THREE.BufferAttribute( array, itemSize, attribute.normalized );
-
-		}
-
-		return attribute.clone();
-
-	}
-
-	/* GLTF PARSER */
-
-	function GLTFParser( json, extensions, options ) {
-
-		this.json = json || {};
-		this.extensions = extensions || {};
-		this.options = options || {};
-
-		// loader object cache
-		this.cache = new GLTFRegistry();
-
-		// BufferGeometry caching
-		this.primitiveCache = {};
-
-		this.textureLoader = new THREE.TextureLoader( this.options.manager );
-		this.textureLoader.setCrossOrigin( this.options.crossOrigin );
-
-		this.fileLoader = new THREE.FileLoader( this.options.manager );
-		this.fileLoader.setResponseType( 'arraybuffer' );
-
-	}
-
-	GLTFParser.prototype.parse = function ( onLoad, onError ) {
-
-		var parser = this;
-		var json = this.json;
-		var extensions = this.extensions;
-
-		// Clear the loader cache
-		this.cache.removeAll();
-
-		// Mark the special nodes/meshes in json for efficient parse
-		this.markDefs();
-
-		Promise.all( [
-
-			this.getDependencies( 'scene' ),
-			this.getDependencies( 'animation' ),
-			this.getDependencies( 'camera' ),
-
-		] ).then( function ( dependencies ) {
-
-			var result = {
-				scene: dependencies[ 0 ][ json.scene || 0 ],
-				scenes: dependencies[ 0 ],
-				animations: dependencies[ 1 ],
-				cameras: dependencies[ 2 ],
-				asset: json.asset,
-				parser: parser,
-				userData: {}
-			};
-
-			addUnknownExtensionsToUserData( extensions, result, json );
-
-			onLoad( result );
-
-		} ).catch( onError );
-
-	};
-
-	/**
-	 * Marks the special nodes/meshes in json for efficient parse.
-	 */
-	GLTFParser.prototype.markDefs = function () {
-
-		var nodeDefs = this.json.nodes || [];
-		var skinDefs = this.json.skins || [];
-		var meshDefs = this.json.meshes || [];
-
-		var meshReferences = {};
-		var meshUses = {};
-
-		// Nothing in the node definition indicates whether it is a Bone or an
-		// Object3D. Use the skins' joint references to mark bones.
-		for ( var skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex ++ ) {
-
-			var joints = skinDefs[ skinIndex ].joints;
-
-			for ( var i = 0, il = joints.length; i < il; i ++ ) {
-
-				nodeDefs[ joints[ i ] ].isBone = true;
-
-			}
-
-		}
-
-		// Meshes can (and should) be reused by multiple nodes in a glTF asset. To
-		// avoid having more than one THREE.Mesh with the same name, count
-		// references and rename instances below.
-		//
-		// Example: CesiumMilkTruck sample model reuses "Wheel" meshes.
-		for ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {
-
-			var nodeDef = nodeDefs[ nodeIndex ];
-
-			if ( nodeDef.mesh !== undefined ) {
-
-				if ( meshReferences[ nodeDef.mesh ] === undefined ) {
-
-					meshReferences[ nodeDef.mesh ] = meshUses[ nodeDef.mesh ] = 0;
-
-				}
-
-				meshReferences[ nodeDef.mesh ] ++;
-
-				// Nothing in the mesh definition indicates whether it is
-				// a SkinnedMesh or Mesh. Use the node's mesh reference
-				// to mark SkinnedMesh if node has skin.
-				if ( nodeDef.skin !== undefined ) {
-
-					meshDefs[ nodeDef.mesh ].isSkinnedMesh = true;
-
-				}
-
-			}
-
-		}
-
-		this.json.meshReferences = meshReferences;
-		this.json.meshUses = meshUses;
-
-	};
-
-	/**
-	 * Requests the specified dependency asynchronously, with caching.
-	 * @param {string} type
-	 * @param {number} index
-	 * @return {Promise<THREE.Object3D|THREE.Material|THREE.Texture|THREE.AnimationClip|ArrayBuffer|Object>}
-	 */
-	GLTFParser.prototype.getDependency = function ( type, index ) {
-
-		var cacheKey = type + ':' + index;
-		var dependency = this.cache.get( cacheKey );
-
-		if ( ! dependency ) {
-
-			switch ( type ) {
-
-				case 'scene':
-					dependency = this.loadScene( index );
-					break;
-
-				case 'node':
-					dependency = this.loadNode( index );
-					break;
-
-				case 'mesh':
-					dependency = this.loadMesh( index );
-					break;
-
-				case 'accessor':
-					dependency = this.loadAccessor( index );
-					break;
-
-				case 'bufferView':
-					dependency = this.loadBufferView( index );
-					break;
-
-				case 'buffer':
-					dependency = this.loadBuffer( index );
-					break;
-
-				case 'material':
-					dependency = this.loadMaterial( index );
-					break;
-
-				case 'texture':
-					dependency = this.loadTexture( index );
-					break;
-
-				case 'skin':
-					dependency = this.loadSkin( index );
-					break;
-
-				case 'animation':
-					dependency = this.loadAnimation( index );
-					break;
-
-				case 'camera':
-					dependency = this.loadCamera( index );
-					break;
-
-				case 'light':
-					dependency = this.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].loadLight( index );
-					break;
-
-				default:
-					throw new Error( 'Unknown type: ' + type );
-
-			}
-
-			this.cache.add( cacheKey, dependency );
-
-		}
-
-		return dependency;
-
-	};
-
-	/**
-	 * Requests all dependencies of the specified type asynchronously, with caching.
-	 * @param {string} type
-	 * @return {Promise<Array<Object>>}
-	 */
-	GLTFParser.prototype.getDependencies = function ( type ) {
-
-		var dependencies = this.cache.get( type );
-
-		if ( ! dependencies ) {
-
-			var parser = this;
-			var defs = this.json[ type + ( type === 'mesh' ? 'es' : 's' ) ] || [];
-
-			dependencies = Promise.all( defs.map( function ( def, index ) {
-
-				return parser.getDependency( type, index );
-
-			} ) );
-
-			this.cache.add( type, dependencies );
-
-		}
-
-		return dependencies;
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
-	 * @param {number} bufferIndex
-	 * @return {Promise<ArrayBuffer>}
-	 */
-	GLTFParser.prototype.loadBuffer = function ( bufferIndex ) {
-
-		var bufferDef = this.json.buffers[ bufferIndex ];
-		var loader = this.fileLoader;
-
-		if ( bufferDef.type && bufferDef.type !== 'arraybuffer' ) {
-
-			throw new Error( 'THREE.GLTFLoader: ' + bufferDef.type + ' buffer type is not supported.' );
-
-		}
-
-		// If present, GLB container is required to be the first buffer.
-		if ( bufferDef.uri === undefined && bufferIndex === 0 ) {
-
-			return Promise.resolve( this.extensions[ EXTENSIONS.KHR_BINARY_GLTF ].body );
-
-		}
-
-		var options = this.options;
-
-		return new Promise( function ( resolve, reject ) {
-
-			loader.load( resolveURL( bufferDef.uri, options.path ), resolve, undefined, function () {
-
-				reject( new Error( 'THREE.GLTFLoader: Failed to load buffer "' + bufferDef.uri + '".' ) );
-
-			} );
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
-	 * @param {number} bufferViewIndex
-	 * @return {Promise<ArrayBuffer>}
-	 */
-	GLTFParser.prototype.loadBufferView = function ( bufferViewIndex ) {
-
-		var bufferViewDef = this.json.bufferViews[ bufferViewIndex ];
-
-		return this.getDependency( 'buffer', bufferViewDef.buffer ).then( function ( buffer ) {
-
-			var byteLength = bufferViewDef.byteLength || 0;
-			var byteOffset = bufferViewDef.byteOffset || 0;
-			return buffer.slice( byteOffset, byteOffset + byteLength );
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors
-	 * @param {number} accessorIndex
-	 * @return {Promise<THREE.BufferAttribute|THREE.InterleavedBufferAttribute>}
-	 */
-	GLTFParser.prototype.loadAccessor = function ( accessorIndex ) {
-
-		var parser = this;
-		var json = this.json;
-
-		var accessorDef = this.json.accessors[ accessorIndex ];
-
-		if ( accessorDef.bufferView === undefined && accessorDef.sparse === undefined ) {
-
-			// Ignore empty accessors, which may be used to declare runtime
-			// information about attributes coming from another source (e.g. Draco
-			// compression extension).
-			return Promise.resolve( null );
-
-		}
-
-		var pendingBufferViews = [];
-
-		if ( accessorDef.bufferView !== undefined ) {
-
-			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.bufferView ) );
-
-		} else {
-
-			pendingBufferViews.push( null );
-
-		}
-
-		if ( accessorDef.sparse !== undefined ) {
-
-			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.indices.bufferView ) );
-			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.values.bufferView ) );
-
-		}
-
-		return Promise.all( pendingBufferViews ).then( function ( bufferViews ) {
-
-			var bufferView = bufferViews[ 0 ];
-
-			var itemSize = WEBGL_TYPE_SIZES[ accessorDef.type ];
-			var TypedArray = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
-
-			// For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.
-			var elementBytes = TypedArray.BYTES_PER_ELEMENT;
-			var itemBytes = elementBytes * itemSize;
-			var byteOffset = accessorDef.byteOffset || 0;
-			var byteStride = accessorDef.bufferView !== undefined ? json.bufferViews[ accessorDef.bufferView ].byteStride : undefined;
-			var normalized = accessorDef.normalized === true;
-			var array, bufferAttribute;
-
-			// The buffer is not interleaved if the stride is the item size in bytes.
-			if ( byteStride && byteStride !== itemBytes ) {
-
-				var ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType;
-				var ib = parser.cache.get( ibCacheKey );
-
-				if ( ! ib ) {
-
-					// Use the full buffer if it's interleaved.
-					array = new TypedArray( bufferView );
-
-					// Integer parameters to IB/IBA are in array elements, not bytes.
-					ib = new THREE.InterleavedBuffer( array, byteStride / elementBytes );
-
-					parser.cache.add( ibCacheKey, ib );
-
-				}
-
-				bufferAttribute = new THREE.InterleavedBufferAttribute( ib, itemSize, byteOffset / elementBytes, normalized );
-
-			} else {
-
-				if ( bufferView === null ) {
-
-					array = new TypedArray( accessorDef.count * itemSize );
-
-				} else {
-
-					array = new TypedArray( bufferView, byteOffset, accessorDef.count * itemSize );
-
-				}
-
-				bufferAttribute = new THREE.BufferAttribute( array, itemSize, normalized );
-
-			}
-
-			// https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#sparse-accessors
-			if ( accessorDef.sparse !== undefined ) {
-
-				var itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
-				var TypedArrayIndices = WEBGL_COMPONENT_TYPES[ accessorDef.sparse.indices.componentType ];
-
-				var byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
-				var byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;
-
-				var sparseIndices = new TypedArrayIndices( bufferViews[ 1 ], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices );
-				var sparseValues = new TypedArray( bufferViews[ 2 ], byteOffsetValues, accessorDef.sparse.count * itemSize );
-
-				if ( bufferView !== null ) {
-
-					// Avoid modifying the original ArrayBuffer, if the bufferView wasn't initialized with zeroes.
-					bufferAttribute.setArray( bufferAttribute.array.slice() );
-
-				}
-
-				for ( var i = 0, il = sparseIndices.length; i < il; i ++ ) {
-
-					var index = sparseIndices[ i ];
-
-					bufferAttribute.setX( index, sparseValues[ i * itemSize ] );
-					if ( itemSize >= 2 ) bufferAttribute.setY( index, sparseValues[ i * itemSize + 1 ] );
-					if ( itemSize >= 3 ) bufferAttribute.setZ( index, sparseValues[ i * itemSize + 2 ] );
-					if ( itemSize >= 4 ) bufferAttribute.setW( index, sparseValues[ i * itemSize + 3 ] );
-					if ( itemSize >= 5 ) throw new Error( 'THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.' );
-
-				}
-
-			}
-
-			return bufferAttribute;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures
-	 * @param {number} textureIndex
-	 * @return {Promise<THREE.Texture>}
-	 */
-	GLTFParser.prototype.loadTexture = function ( textureIndex ) {
-
-		var parser = this;
-		var json = this.json;
-		var options = this.options;
-		var textureLoader = this.textureLoader;
-
-		var URL = window.URL || window.webkitURL;
-
-		var textureDef = json.textures[ textureIndex ];
-
-		var textureExtensions = textureDef.extensions || {};
-
-		var source;
-
-		if ( textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ] ) {
-
-			source = json.images[ textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].source ];
-
-		} else {
-
-			source = json.images[ textureDef.source ];
-
-		}
-
-		var sourceURI = source.uri;
-		var isObjectURL = false;
-
-		if ( source.bufferView !== undefined ) {
-
-			// Load binary image data from bufferView, if provided.
-
-			sourceURI = parser.getDependency( 'bufferView', source.bufferView ).then( function ( bufferView ) {
-
-				isObjectURL = true;
-				var blob = new Blob( [ bufferView ], { type: source.mimeType } );
-				sourceURI = URL.createObjectURL( blob );
-				return sourceURI;
-
-			} );
-
-		}
-
-		return Promise.resolve( sourceURI ).then( function ( sourceURI ) {
-
-			// Load Texture resource.
-
-			var loader = THREE.Loader.Handlers.get( sourceURI );
-
-			if ( ! loader ) {
-
-				loader = textureExtensions[ EXTENSIONS.MSFT_TEXTURE_DDS ]
-					? parser.extensions[ EXTENSIONS.MSFT_TEXTURE_DDS ].ddsLoader
-					: textureLoader;
-
-			}
-
-			return new Promise( function ( resolve, reject ) {
-
-				loader.load( resolveURL( sourceURI, options.path ), resolve, undefined, reject );
-
-			} );
-
-		} ).then( function ( texture ) {
-
-			// Clean up resources and configure Texture.
-
-			if ( isObjectURL === true ) {
-
-				URL.revokeObjectURL( sourceURI );
-
-			}
-
-			texture.flipY = false;
-
-			if ( textureDef.name !== undefined ) texture.name = textureDef.name;
-
-			// Ignore unknown mime types, like DDS files.
-			if ( source.mimeType in MIME_TYPE_FORMATS ) {
-
-				texture.format = MIME_TYPE_FORMATS[ source.mimeType ];
-
-			}
-
-			var samplers = json.samplers || {};
-			var sampler = samplers[ textureDef.sampler ] || {};
-
-			texture.magFilter = WEBGL_FILTERS[ sampler.magFilter ] || THREE.LinearFilter;
-			texture.minFilter = WEBGL_FILTERS[ sampler.minFilter ] || THREE.LinearMipMapLinearFilter;
-			texture.wrapS = WEBGL_WRAPPINGS[ sampler.wrapS ] || THREE.RepeatWrapping;
-			texture.wrapT = WEBGL_WRAPPINGS[ sampler.wrapT ] || THREE.RepeatWrapping;
-
-			return texture;
-
-		} );
-
-	};
-
-	/**
-	 * Asynchronously assigns a texture to the given material parameters.
-	 * @param {Object} materialParams
-	 * @param {string} mapName
-	 * @param {Object} mapDef
-	 * @return {Promise}
-	 */
-	GLTFParser.prototype.assignTexture = function ( materialParams, mapName, mapDef ) {
-
-		var parser = this;
-
-		return this.getDependency( 'texture', mapDef.index ).then( function ( texture ) {
-
-			if ( ! texture.isCompressedTexture ) {
-
-				switch ( mapName ) {
-
-					case 'aoMap':
-					case 'emissiveMap':
-					case 'metalnessMap':
-					case 'normalMap':
-					case 'roughnessMap':
-						texture.format = THREE.RGBFormat;
-						break;
-
-				}
-
-			}
-
-			if ( parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] ) {
-
-				var transform = mapDef.extensions !== undefined ? mapDef.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ] : undefined;
-
-				if ( transform ) {
-
-					texture = parser.extensions[ EXTENSIONS.KHR_TEXTURE_TRANSFORM ].extendTexture( texture, transform );
-
-				}
-
-			}
-
-			materialParams[ mapName ] = texture;
-
-		} );
-
-	};
-
-	/**
-	 * Assigns final material to a Mesh, Line, or Points instance. The instance
-	 * already has a material (generated from the glTF material options alone)
-	 * but reuse of the same glTF material may require multiple threejs materials
-	 * to accomodate different primitive types, defines, etc. New materials will
-	 * be created if necessary, and reused from a cache.
-	 * @param  {THREE.Object3D} mesh Mesh, Line, or Points instance.
-	 */
-	GLTFParser.prototype.assignFinalMaterial = function ( mesh ) {
-
-		var geometry = mesh.geometry;
-		var material = mesh.material;
-		var extensions = this.extensions;
-
-		var useVertexTangents = geometry.attributes.tangent !== undefined;
-		var useVertexColors = geometry.attributes.color !== undefined;
-		var useFlatShading = geometry.attributes.normal === undefined;
-		var useSkinning = mesh.isSkinnedMesh === true;
-		var useMorphTargets = Object.keys( geometry.morphAttributes ).length > 0;
-		var useMorphNormals = useMorphTargets && geometry.morphAttributes.normal !== undefined;
-
-		if ( mesh.isPoints ) {
-
-			var cacheKey = 'PointsMaterial:' + material.uuid;
-
-			var pointsMaterial = this.cache.get( cacheKey );
-
-			if ( ! pointsMaterial ) {
-
-				pointsMaterial = new THREE.PointsMaterial();
-				THREE.Material.prototype.copy.call( pointsMaterial, material );
-				pointsMaterial.color.copy( material.color );
-				pointsMaterial.map = material.map;
-				pointsMaterial.lights = false; // PointsMaterial doesn't support lights yet
-
-				this.cache.add( cacheKey, pointsMaterial );
-
-			}
-
-			material = pointsMaterial;
-
-		} else if ( mesh.isLine ) {
-
-			var cacheKey = 'LineBasicMaterial:' + material.uuid;
-
-			var lineMaterial = this.cache.get( cacheKey );
-
-			if ( ! lineMaterial ) {
-
-				lineMaterial = new THREE.LineBasicMaterial();
-				THREE.Material.prototype.copy.call( lineMaterial, material );
-				lineMaterial.color.copy( material.color );
-				lineMaterial.lights = false; // LineBasicMaterial doesn't support lights yet
-
-				this.cache.add( cacheKey, lineMaterial );
-
-			}
-
-			material = lineMaterial;
-
-		}
-
-		// Clone the material if it will be modified
-		if ( useVertexTangents || useVertexColors || useFlatShading || useSkinning || useMorphTargets ) {
-
-			var cacheKey = 'ClonedMaterial:' + material.uuid + ':';
-
-			if ( material.isGLTFSpecularGlossinessMaterial ) cacheKey += 'specular-glossiness:';
-			if ( useSkinning ) cacheKey += 'skinning:';
-			if ( useVertexTangents ) cacheKey += 'vertex-tangents:';
-			if ( useVertexColors ) cacheKey += 'vertex-colors:';
-			if ( useFlatShading ) cacheKey += 'flat-shading:';
-			if ( useMorphTargets ) cacheKey += 'morph-targets:';
-			if ( useMorphNormals ) cacheKey += 'morph-normals:';
-
-			var cachedMaterial = this.cache.get( cacheKey );
-
-			if ( ! cachedMaterial ) {
-
-				cachedMaterial = material.isGLTFSpecularGlossinessMaterial
-					? extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].cloneMaterial( material )
-					: material.clone();
-
-				if ( useSkinning ) cachedMaterial.skinning = true;
-				if ( useVertexTangents ) cachedMaterial.vertexTangents = true;
-				if ( useVertexColors ) cachedMaterial.vertexColors = THREE.VertexColors;
-				if ( useFlatShading ) cachedMaterial.flatShading = true;
-				if ( useMorphTargets ) cachedMaterial.morphTargets = true;
-				if ( useMorphNormals ) cachedMaterial.morphNormals = true;
-
-				this.cache.add( cacheKey, cachedMaterial );
-
-			}
-
-			material = cachedMaterial;
-
-		}
-
-		// workarounds for mesh and geometry
-
-		if ( material.aoMap && geometry.attributes.uv2 === undefined && geometry.attributes.uv !== undefined ) {
-
-			console.log( 'THREE.GLTFLoader: Duplicating UVs to support aoMap.' );
-			geometry.addAttribute( 'uv2', new THREE.BufferAttribute( geometry.attributes.uv.array, 2 ) );
-
-		}
-
-		if ( material.isGLTFSpecularGlossinessMaterial ) {
-
-			// for GLTFSpecularGlossinessMaterial(ShaderMaterial) uniforms runtime update
-			mesh.onBeforeRender = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].refreshUniforms;
-
-		}
-
-		mesh.material = material;
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
-	 * @param {number} materialIndex
-	 * @return {Promise<THREE.Material>}
-	 */
-	GLTFParser.prototype.loadMaterial = function ( materialIndex ) {
-
-		var parser = this;
-		var json = this.json;
-		var extensions = this.extensions;
-		var materialDef = json.materials[ materialIndex ];
-
-		var materialType;
-		var materialParams = {};
-		var materialExtensions = materialDef.extensions || {};
-
-		var pending = [];
-
-		if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] ) {
-
-			var sgExtension = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ];
-			materialType = sgExtension.getMaterialType();
-			pending.push( sgExtension.extendParams( materialParams, materialDef, parser ) );
-
-		} else if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ] ) {
-
-			var kmuExtension = extensions[ EXTENSIONS.KHR_MATERIALS_UNLIT ];
-			materialType = kmuExtension.getMaterialType();
-			pending.push( kmuExtension.extendParams( materialParams, materialDef, parser ) );
-
-		} else {
-
-			// Specification:
-			// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material
-
-			materialType = THREE.MeshStandardMaterial;
-
-			var metallicRoughness = materialDef.pbrMetallicRoughness || {};
-
-			materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
-			materialParams.opacity = 1.0;
-
-			if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
-
-				var array = metallicRoughness.baseColorFactor;
-
-				materialParams.color.fromArray( array );
-				materialParams.opacity = array[ 3 ];
-
-			}
-
-			if ( metallicRoughness.baseColorTexture !== undefined ) {
-
-				pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture ) );
-
-			}
-
-			materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;
-			materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;
-
-			if ( metallicRoughness.metallicRoughnessTexture !== undefined ) {
-
-				pending.push( parser.assignTexture( materialParams, 'metalnessMap', metallicRoughness.metallicRoughnessTexture ) );
-				pending.push( parser.assignTexture( materialParams, 'roughnessMap', metallicRoughness.metallicRoughnessTexture ) );
-
-			}
-
-		}
-
-		if ( materialDef.doubleSided === true ) {
-
-			materialParams.side = THREE.DoubleSide;
-
-		}
-
-		var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;
-
-		if ( alphaMode === ALPHA_MODES.BLEND ) {
-
-			materialParams.transparent = true;
-
-		} else {
-
-			materialParams.transparent = false;
-
-			if ( alphaMode === ALPHA_MODES.MASK ) {
-
-				materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5;
-
-			}
-
-		}
-
-		if ( materialDef.normalTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {
-
-			pending.push( parser.assignTexture( materialParams, 'normalMap', materialDef.normalTexture ) );
-
-			materialParams.normalScale = new THREE.Vector2( 1, 1 );
-
-			if ( materialDef.normalTexture.scale !== undefined ) {
-
-				materialParams.normalScale.set( materialDef.normalTexture.scale, materialDef.normalTexture.scale );
-
-			}
-
-		}
-
-		if ( materialDef.occlusionTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {
-
-			pending.push( parser.assignTexture( materialParams, 'aoMap', materialDef.occlusionTexture ) );
-
-			if ( materialDef.occlusionTexture.strength !== undefined ) {
-
-				materialParams.aoMapIntensity = materialDef.occlusionTexture.strength;
-
-			}
-
-		}
-
-		if ( materialDef.emissiveFactor !== undefined && materialType !== THREE.MeshBasicMaterial ) {
-
-			materialParams.emissive = new THREE.Color().fromArray( materialDef.emissiveFactor );
-
-		}
-
-		if ( materialDef.emissiveTexture !== undefined && materialType !== THREE.MeshBasicMaterial ) {
-
-			pending.push( parser.assignTexture( materialParams, 'emissiveMap', materialDef.emissiveTexture ) );
-
-		}
-
-		return Promise.all( pending ).then( function () {
-
-			var material;
-
-			if ( materialType === THREE.ShaderMaterial ) {
-
-				material = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams );
-
-			} else {
-
-				material = new materialType( materialParams );
-
-			}
-
-			if ( materialDef.name !== undefined ) material.name = materialDef.name;
-
-			// baseColorTexture, emissiveTexture, and specularGlossinessTexture use sRGB encoding.
-			if ( material.map ) material.map.encoding = THREE.sRGBEncoding;
-			if ( material.emissiveMap ) material.emissiveMap.encoding = THREE.sRGBEncoding;
-			if ( material.specularMap ) material.specularMap.encoding = THREE.sRGBEncoding;
-
-			assignExtrasToUserData( material, materialDef );
-
-			if ( materialDef.extensions ) addUnknownExtensionsToUserData( extensions, material, materialDef );
-
-			return material;
-
-		} );
-
-	};
-
-	/**
-	 * @param {THREE.BufferGeometry} geometry
-	 * @param {GLTF.Primitive} primitiveDef
-	 * @param {GLTFParser} parser
-	 * @return {Promise<THREE.BufferGeometry>}
-	 */
-	function addPrimitiveAttributes( geometry, primitiveDef, parser ) {
-
-		var attributes = primitiveDef.attributes;
-
-		var pending = [];
-
-		function assignAttributeAccessor( accessorIndex, attributeName ) {
-
-			return parser.getDependency( 'accessor', accessorIndex )
-				.then( function ( accessor ) {
-
-					geometry.addAttribute( attributeName, accessor );
-
-				} );
-
-		}
-
-		for ( var gltfAttributeName in attributes ) {
-
-			var threeAttributeName = ATTRIBUTES[ gltfAttributeName ] || gltfAttributeName.toLowerCase();
-
-			// Skip attributes already provided by e.g. Draco extension.
-			if ( threeAttributeName in geometry.attributes ) continue;
-
-			pending.push( assignAttributeAccessor( attributes[ gltfAttributeName ], threeAttributeName ) );
-
-		}
-
-		if ( primitiveDef.indices !== undefined && ! geometry.index ) {
-
-			var accessor = parser.getDependency( 'accessor', primitiveDef.indices ).then( function ( accessor ) {
-
-				geometry.setIndex( accessor );
-
-			} );
-
-			pending.push( accessor );
-
-		}
-
-		assignExtrasToUserData( geometry, primitiveDef );
-
-		return Promise.all( pending ).then( function () {
-
-			return primitiveDef.targets !== undefined
-				? addMorphTargets( geometry, primitiveDef.targets, parser )
-				: geometry;
-
-		} );
-
-	}
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry
-	 *
-	 * Creates BufferGeometries from primitives.
-	 *
-	 * @param {Array<GLTF.Primitive>} primitives
-	 * @return {Promise<Array<THREE.BufferGeometry>>}
-	 */
-	GLTFParser.prototype.loadGeometries = function ( primitives ) {
-
-		var parser = this;
-		var extensions = this.extensions;
-		var cache = this.primitiveCache;
-
-		function createDracoPrimitive( primitive ) {
-
-			return extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ]
-				.decodePrimitive( primitive, parser )
-				.then( function ( geometry ) {
-
-					return addPrimitiveAttributes( geometry, primitive, parser );
-
-				} );
-
-		}
-
-		var pending = [];
-
-		for ( var i = 0, il = primitives.length; i < il; i ++ ) {
-
-			var primitive = primitives[ i ];
-			var cacheKey = createPrimitiveKey( primitive );
-
-			// See if we've already created this geometry
-			var cached = cache[ cacheKey ];
-
-			if ( cached ) {
-
-				// Use the cached geometry if it exists
-				pending.push( cached.promise );
-
-			} else {
-
-				var geometryPromise;
-
-				if ( primitive.extensions && primitive.extensions[ EXTENSIONS.KHR_DRACO_MESH_COMPRESSION ] ) {
-
-					// Use DRACO geometry if available
-					geometryPromise = createDracoPrimitive( primitive );
-
-				} else {
-
-					// Otherwise create a new geometry
-					geometryPromise = addPrimitiveAttributes( new THREE.BufferGeometry(), primitive, parser );
-
-				}
-
-				// Cache this geometry
-				cache[ cacheKey ] = { primitive: primitive, promise: geometryPromise };
-
-				pending.push( geometryPromise );
-
-			}
-
-		}
-
-		return Promise.all( pending );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes
-	 * @param {number} meshIndex
-	 * @return {Promise<THREE.Group|THREE.Mesh|THREE.SkinnedMesh>}
-	 */
-	GLTFParser.prototype.loadMesh = function ( meshIndex ) {
-
-		var parser = this;
-		var json = this.json;
-		var extensions = this.extensions;
-
-		var meshDef = json.meshes[ meshIndex ];
-		var primitives = meshDef.primitives;
-
-		var pending = [];
-
-		for ( var i = 0, il = primitives.length; i < il; i ++ ) {
-
-			var material = primitives[ i ].material === undefined
-				? createDefaultMaterial()
-				: this.getDependency( 'material', primitives[ i ].material );
-
-			pending.push( material );
-
-		}
-
-		return Promise.all( pending ).then( function ( originalMaterials ) {
-
-			return parser.loadGeometries( primitives ).then( function ( geometries ) {
-
-				var meshes = [];
-
-				for ( var i = 0, il = geometries.length; i < il; i ++ ) {
-
-					var geometry = geometries[ i ];
-					var primitive = primitives[ i ];
-
-					// 1. create Mesh
-
-					var mesh;
-
-					var material = originalMaterials[ i ];
-
-					if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLES ||
-						primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ||
-						primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ||
-						primitive.mode === undefined ) {
-
-						// .isSkinnedMesh isn't in glTF spec. See .markDefs()
-						mesh = meshDef.isSkinnedMesh === true
-							? new THREE.SkinnedMesh( geometry, material )
-							: new THREE.Mesh( geometry, material );
-
-						if ( mesh.isSkinnedMesh === true ) mesh.normalizeSkinWeights(); // #15319
-
-						if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ) {
-
-							mesh.drawMode = THREE.TriangleStripDrawMode;
-
-						} else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) {
-
-							mesh.drawMode = THREE.TriangleFanDrawMode;
-
-						}
-
-					} else if ( primitive.mode === WEBGL_CONSTANTS.LINES ) {
-
-						mesh = new THREE.LineSegments( geometry, material );
-
-					} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_STRIP ) {
-
-						mesh = new THREE.Line( geometry, material );
-
-					} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_LOOP ) {
-
-						mesh = new THREE.LineLoop( geometry, material );
-
-					} else if ( primitive.mode === WEBGL_CONSTANTS.POINTS ) {
-
-						mesh = new THREE.Points( geometry, material );
-
-					} else {
-
-						throw new Error( 'THREE.GLTFLoader: Primitive mode unsupported: ' + primitive.mode );
-
-					}
-
-					if ( Object.keys( mesh.geometry.morphAttributes ).length > 0 ) {
-
-						updateMorphTargets( mesh, meshDef );
-
-					}
-
-					mesh.name = meshDef.name || ( 'mesh_' + meshIndex );
-
-					if ( geometries.length > 1 ) mesh.name += '_' + i;
-
-					assignExtrasToUserData( mesh, meshDef );
-
-					parser.assignFinalMaterial( mesh );
-
-					meshes.push( mesh );
-
-				}
-
-				if ( meshes.length === 1 ) {
-
-					return meshes[ 0 ];
-
-				}
-
-				var group = new THREE.Group();
-
-				for ( var i = 0, il = meshes.length; i < il; i ++ ) {
-
-					group.add( meshes[ i ] );
-
-				}
-
-				return group;
-
-			} );
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras
-	 * @param {number} cameraIndex
-	 * @return {Promise<THREE.Camera>}
-	 */
-	GLTFParser.prototype.loadCamera = function ( cameraIndex ) {
-
-		var camera;
-		var cameraDef = this.json.cameras[ cameraIndex ];
-		var params = cameraDef[ cameraDef.type ];
-
-		if ( ! params ) {
-
-			console.warn( 'THREE.GLTFLoader: Missing camera parameters.' );
-			return;
-
-		}
-
-		if ( cameraDef.type === 'perspective' ) {
-
-			camera = new THREE.PerspectiveCamera( THREE.Math.radToDeg( params.yfov ), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6 );
-
-		} else if ( cameraDef.type === 'orthographic' ) {
-
-			camera = new THREE.OrthographicCamera( params.xmag / - 2, params.xmag / 2, params.ymag / 2, params.ymag / - 2, params.znear, params.zfar );
-
-		}
-
-		if ( cameraDef.name !== undefined ) camera.name = cameraDef.name;
-
-		assignExtrasToUserData( camera, cameraDef );
-
-		return Promise.resolve( camera );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins
-	 * @param {number} skinIndex
-	 * @return {Promise<Object>}
-	 */
-	GLTFParser.prototype.loadSkin = function ( skinIndex ) {
-
-		var skinDef = this.json.skins[ skinIndex ];
-
-		var skinEntry = { joints: skinDef.joints };
-
-		if ( skinDef.inverseBindMatrices === undefined ) {
-
-			return Promise.resolve( skinEntry );
-
-		}
-
-		return this.getDependency( 'accessor', skinDef.inverseBindMatrices ).then( function ( accessor ) {
-
-			skinEntry.inverseBindMatrices = accessor;
-
-			return skinEntry;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations
-	 * @param {number} animationIndex
-	 * @return {Promise<THREE.AnimationClip>}
-	 */
-	GLTFParser.prototype.loadAnimation = function ( animationIndex ) {
-
-		var json = this.json;
-
-		var animationDef = json.animations[ animationIndex ];
-
-		var pendingNodes = [];
-		var pendingInputAccessors = [];
-		var pendingOutputAccessors = [];
-		var pendingSamplers = [];
-		var pendingTargets = [];
-
-		for ( var i = 0, il = animationDef.channels.length; i < il; i ++ ) {
-
-			var channel = animationDef.channels[ i ];
-			var sampler = animationDef.samplers[ channel.sampler ];
-			var target = channel.target;
-			var name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.
-			var input = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.input ] : sampler.input;
-			var output = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.output ] : sampler.output;
-
-			pendingNodes.push( this.getDependency( 'node', name ) );
-			pendingInputAccessors.push( this.getDependency( 'accessor', input ) );
-			pendingOutputAccessors.push( this.getDependency( 'accessor', output ) );
-			pendingSamplers.push( sampler );
-			pendingTargets.push( target );
-
-		}
-
-		return Promise.all( [
-
-			Promise.all( pendingNodes ),
-			Promise.all( pendingInputAccessors ),
-			Promise.all( pendingOutputAccessors ),
-			Promise.all( pendingSamplers ),
-			Promise.all( pendingTargets )
-
-		] ).then( function ( dependencies ) {
-
-			var nodes = dependencies[ 0 ];
-			var inputAccessors = dependencies[ 1 ];
-			var outputAccessors = dependencies[ 2 ];
-			var samplers = dependencies[ 3 ];
-			var targets = dependencies[ 4 ];
-
-			var tracks = [];
-
-			for ( var i = 0, il = nodes.length; i < il; i ++ ) {
-
-				var node = nodes[ i ];
-				var inputAccessor = inputAccessors[ i ];
-				var outputAccessor = outputAccessors[ i ];
-				var sampler = samplers[ i ];
-				var target = targets[ i ];
-
-				if ( node === undefined ) continue;
-
-				node.updateMatrix();
-				node.matrixAutoUpdate = true;
-
-				var TypedKeyframeTrack;
-
-				switch ( PATH_PROPERTIES[ target.path ] ) {
-
-					case PATH_PROPERTIES.weights:
-
-						TypedKeyframeTrack = THREE.NumberKeyframeTrack;
-						break;
-
-					case PATH_PROPERTIES.rotation:
-
-						TypedKeyframeTrack = THREE.QuaternionKeyframeTrack;
-						break;
-
-					case PATH_PROPERTIES.position:
-					case PATH_PROPERTIES.scale:
-					default:
-
-						TypedKeyframeTrack = THREE.VectorKeyframeTrack;
-						break;
-
-				}
-
-				var targetName = node.name ? node.name : node.uuid;
-
-				var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : THREE.InterpolateLinear;
-
-				var targetNames = [];
-
-				if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) {
-
-					// Node may be a THREE.Group (glTF mesh with several primitives) or a THREE.Mesh.
-					node.traverse( function ( object ) {
-
-						if ( object.isMesh === true && object.morphTargetInfluences ) {
-
-							targetNames.push( object.name ? object.name : object.uuid );
-
-						}
-
-					} );
-
-				} else {
-
-					targetNames.push( targetName );
-
-				}
-
-				for ( var j = 0, jl = targetNames.length; j < jl; j ++ ) {
-
-					var track = new TypedKeyframeTrack(
-						targetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ],
-						inputAccessor.array,
-						outputAccessor.array,
-						interpolation
-					);
-
-					// Override interpolation with custom factory method.
-					if ( sampler.interpolation === 'CUBICSPLINE' ) {
-
-						track.createInterpolant = function InterpolantFactoryMethodGLTFCubicSpline( result ) {
-
-							// A CUBICSPLINE keyframe in glTF has three output values for each input value,
-							// representing inTangent, splineVertex, and outTangent. As a result, track.getValueSize()
-							// must be divided by three to get the interpolant's sampleSize argument.
-
-							return new GLTFCubicSplineInterpolant( this.times, this.values, this.getValueSize() / 3, result );
-
-						};
-
-						// Mark as CUBICSPLINE. `track.getInterpolation()` doesn't support custom interpolants.
-						track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true;
-
-					}
-
-					tracks.push( track );
-
-				}
-
-			}
-
-			var name = animationDef.name !== undefined ? animationDef.name : 'animation_' + animationIndex;
-
-			return new THREE.AnimationClip( name, undefined, tracks );
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
-	 * @param {number} nodeIndex
-	 * @return {Promise<THREE.Object3D>}
-	 */
-	GLTFParser.prototype.loadNode = function ( nodeIndex ) {
-
-		var json = this.json;
-		var extensions = this.extensions;
-		var parser = this;
-
-		var meshReferences = json.meshReferences;
-		var meshUses = json.meshUses;
-
-		var nodeDef = json.nodes[ nodeIndex ];
-
-		return ( function () {
-
-			// .isBone isn't in glTF spec. See .markDefs
-			if ( nodeDef.isBone === true ) {
-
-				return Promise.resolve( new THREE.Bone() );
-
-			} else if ( nodeDef.mesh !== undefined ) {
-
-				return parser.getDependency( 'mesh', nodeDef.mesh ).then( function ( mesh ) {
-
-					var node;
-
-					if ( meshReferences[ nodeDef.mesh ] > 1 ) {
-
-						var instanceNum = meshUses[ nodeDef.mesh ] ++;
-
-						node = mesh.clone();
-						node.name += '_instance_' + instanceNum;
-
-						// onBeforeRender copy for Specular-Glossiness
-						node.onBeforeRender = mesh.onBeforeRender;
-
-						for ( var i = 0, il = node.children.length; i < il; i ++ ) {
-
-							node.children[ i ].name += '_instance_' + instanceNum;
-							node.children[ i ].onBeforeRender = mesh.children[ i ].onBeforeRender;
-
-						}
-
-					} else {
-
-						node = mesh;
-
-					}
-
-					// if weights are provided on the node, override weights on the mesh.
-					if ( nodeDef.weights !== undefined ) {
-
-						node.traverse( function ( o ) {
-
-							if ( ! o.isMesh ) return;
-
-							for ( var i = 0, il = nodeDef.weights.length; i < il; i ++ ) {
-
-								o.morphTargetInfluences[ i ] = nodeDef.weights[ i ];
-
-							}
-
-						} );
-
-					}
-
-					return node;
-
-				} );
-
-			} else if ( nodeDef.camera !== undefined ) {
-
-				return parser.getDependency( 'camera', nodeDef.camera );
-
-			} else if ( nodeDef.extensions
-				&& nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ]
-				&& nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light !== undefined ) {
-
-				return parser.getDependency( 'light', nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS_PUNCTUAL ].light );
-
-			} else {
-
-				return Promise.resolve( new THREE.Object3D() );
-
-			}
-
-		}() ).then( function ( node ) {
-
-			if ( nodeDef.name !== undefined ) {
-
-				node.userData.name = nodeDef.name;
-				node.name = THREE.PropertyBinding.sanitizeNodeName( nodeDef.name );
-
-			}
-
-			assignExtrasToUserData( node, nodeDef );
-
-			if ( nodeDef.extensions ) addUnknownExtensionsToUserData( extensions, node, nodeDef );
-
-			if ( nodeDef.matrix !== undefined ) {
-
-				var matrix = new THREE.Matrix4();
-				matrix.fromArray( nodeDef.matrix );
-				node.applyMatrix( matrix );
-
-			} else {
-
-				if ( nodeDef.translation !== undefined ) {
-
-					node.position.fromArray( nodeDef.translation );
-
-				}
-
-				if ( nodeDef.rotation !== undefined ) {
-
-					node.quaternion.fromArray( nodeDef.rotation );
-
-				}
-
-				if ( nodeDef.scale !== undefined ) {
-
-					node.scale.fromArray( nodeDef.scale );
-
-				}
-
-			}
-
-			return node;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
-	 * @param {number} sceneIndex
-	 * @return {Promise<THREE.Scene>}
-	 */
-	GLTFParser.prototype.loadScene = function () {
-
-		// scene node hierachy builder
-
-		function buildNodeHierachy( nodeId, parentObject, json, parser ) {
-
-			var nodeDef = json.nodes[ nodeId ];
-
-			return parser.getDependency( 'node', nodeId ).then( function ( node ) {
-
-				if ( nodeDef.skin === undefined ) return node;
-
-				// build skeleton here as well
-
-				var skinEntry;
-
-				return parser.getDependency( 'skin', nodeDef.skin ).then( function ( skin ) {
-
-					skinEntry = skin;
-
-					var pendingJoints = [];
-
-					for ( var i = 0, il = skinEntry.joints.length; i < il; i ++ ) {
-
-						pendingJoints.push( parser.getDependency( 'node', skinEntry.joints[ i ] ) );
-
-					}
-
-					return Promise.all( pendingJoints );
-
-				} ).then( function ( jointNodes ) {
-
-					var meshes = node.isGroup === true ? node.children : [ node ];
-
-					for ( var i = 0, il = meshes.length; i < il; i ++ ) {
-
-						var mesh = meshes[ i ];
-
-						var bones = [];
-						var boneInverses = [];
-
-						for ( var j = 0, jl = jointNodes.length; j < jl; j ++ ) {
-
-							var jointNode = jointNodes[ j ];
-
-							if ( jointNode ) {
-
-								bones.push( jointNode );
-
-								var mat = new THREE.Matrix4();
-
-								if ( skinEntry.inverseBindMatrices !== undefined ) {
-
-									mat.fromArray( skinEntry.inverseBindMatrices.array, j * 16 );
-
-								}
-
-								boneInverses.push( mat );
-
-							} else {
-
-								console.warn( 'THREE.GLTFLoader: Joint "%s" could not be found.', skinEntry.joints[ j ] );
-
-							}
-
-						}
-
-						mesh.bind( new THREE.Skeleton( bones, boneInverses ), mesh.matrixWorld );
-
-					}
-
-					return node;
-
-				} );
-
-			} ).then( function ( node ) {
-
-				// build node hierachy
-
-				parentObject.add( node );
-
-				var pending = [];
-
-				if ( nodeDef.children ) {
-
-					var children = nodeDef.children;
-
-					for ( var i = 0, il = children.length; i < il; i ++ ) {
-
-						var child = children[ i ];
-						pending.push( buildNodeHierachy( child, node, json, parser ) );
-
-					}
-
-				}
-
-				return Promise.all( pending );
-
-			} );
-
-		}
-
-		return function loadScene( sceneIndex ) {
-
-			var json = this.json;
-			var extensions = this.extensions;
-			var sceneDef = this.json.scenes[ sceneIndex ];
-			var parser = this;
-
-			var scene = new THREE.Scene();
-			if ( sceneDef.name !== undefined ) scene.name = sceneDef.name;
-
-			assignExtrasToUserData( scene, sceneDef );
-
-			if ( sceneDef.extensions ) addUnknownExtensionsToUserData( extensions, scene, sceneDef );
-
-			var nodeIds = sceneDef.nodes || [];
-
-			var pending = [];
-
-			for ( var i = 0, il = nodeIds.length; i < il; i ++ ) {
-
-				pending.push( buildNodeHierachy( nodeIds[ i ], scene, json, parser ) );
-
-			}
-
-			return Promise.all( pending ).then( function () {
-
-				return scene;
-
-			} );
-
-		};
-
-	}();
-
-	return GLTFLoader;
-
-} )();
diff --git a/Elements.Wasm/wwwroot/js/three.js b/Elements.Wasm/wwwroot/js/three.js
deleted file mode 100644
index d54e44fb7..000000000
--- a/Elements.Wasm/wwwroot/js/three.js
+++ /dev/null
@@ -1,49160 +0,0 @@
-(function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
-	typeof define === 'function' && define.amd ? define(['exports'], factory) :
-	(global = global || self, factory(global.THREE = {}));
-}(this, function (exports) { 'use strict';
-
-	// Polyfills
-
-	if ( Number.EPSILON === undefined ) {
-
-		Number.EPSILON = Math.pow( 2, - 52 );
-
-	}
-
-	if ( Number.isInteger === undefined ) {
-
-		// Missing in IE
-		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger
-
-		Number.isInteger = function ( value ) {
-
-			return typeof value === 'number' && isFinite( value ) && Math.floor( value ) === value;
-
-		};
-
-	}
-
-	//
-
-	if ( Math.sign === undefined ) {
-
-		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign
-
-		Math.sign = function ( x ) {
-
-			return ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;
-
-		};
-
-	}
-
-	if ( 'name' in Function.prototype === false ) {
-
-		// Missing in IE
-		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name
-
-		Object.defineProperty( Function.prototype, 'name', {
-
-			get: function () {
-
-				return this.toString().match( /^\s*function\s*([^\(\s]*)/ )[ 1 ];
-
-			}
-
-		} );
-
-	}
-
-	if ( Object.assign === undefined ) {
-
-		// Missing in IE
-		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
-
-		( function () {
-
-			Object.assign = function ( target ) {
-
-				if ( target === undefined || target === null ) {
-
-					throw new TypeError( 'Cannot convert undefined or null to object' );
-
-				}
-
-				var output = Object( target );
-
-				for ( var index = 1; index < arguments.length; index ++ ) {
-
-					var source = arguments[ index ];
-
-					if ( source !== undefined && source !== null ) {
-
-						for ( var nextKey in source ) {
-
-							if ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {
-
-								output[ nextKey ] = source[ nextKey ];
-
-							}
-
-						}
-
-					}
-
-				}
-
-				return output;
-
-			};
-
-		} )();
-
-	}
-
-	/**
-	 * https://github.com/mrdoob/eventdispatcher.js/
-	 */
-
-	function EventDispatcher() {}
-
-	Object.assign( EventDispatcher.prototype, {
-
-		addEventListener: function ( type, listener ) {
-
-			if ( this._listeners === undefined ) this._listeners = {};
-
-			var listeners = this._listeners;
-
-			if ( listeners[ type ] === undefined ) {
-
-				listeners[ type ] = [];
-
-			}
-
-			if ( listeners[ type ].indexOf( listener ) === - 1 ) {
-
-				listeners[ type ].push( listener );
-
-			}
-
-		},
-
-		hasEventListener: function ( type, listener ) {
-
-			if ( this._listeners === undefined ) return false;
-
-			var listeners = this._listeners;
-
-			return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;
-
-		},
-
-		removeEventListener: function ( type, listener ) {
-
-			if ( this._listeners === undefined ) return;
-
-			var listeners = this._listeners;
-			var listenerArray = listeners[ type ];
-
-			if ( listenerArray !== undefined ) {
-
-				var index = listenerArray.indexOf( listener );
-
-				if ( index !== - 1 ) {
-
-					listenerArray.splice( index, 1 );
-
-				}
-
-			}
-
-		},
-
-		dispatchEvent: function ( event ) {
-
-			if ( this._listeners === undefined ) return;
-
-			var listeners = this._listeners;
-			var listenerArray = listeners[ event.type ];
-
-			if ( listenerArray !== undefined ) {
-
-				event.target = this;
-
-				var array = listenerArray.slice( 0 );
-
-				for ( var i = 0, l = array.length; i < l; i ++ ) {
-
-					array[ i ].call( this, event );
-
-				}
-
-			}
-
-		}
-
-	} );
-
-	var REVISION = '105';
-	var MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };
-	var CullFaceNone = 0;
-	var CullFaceBack = 1;
-	var CullFaceFront = 2;
-	var CullFaceFrontBack = 3;
-	var FrontFaceDirectionCW = 0;
-	var FrontFaceDirectionCCW = 1;
-	var BasicShadowMap = 0;
-	var PCFShadowMap = 1;
-	var PCFSoftShadowMap = 2;
-	var FrontSide = 0;
-	var BackSide = 1;
-	var DoubleSide = 2;
-	var FlatShading = 1;
-	var SmoothShading = 2;
-	var NoColors = 0;
-	var FaceColors = 1;
-	var VertexColors = 2;
-	var NoBlending = 0;
-	var NormalBlending = 1;
-	var AdditiveBlending = 2;
-	var SubtractiveBlending = 3;
-	var MultiplyBlending = 4;
-	var CustomBlending = 5;
-	var AddEquation = 100;
-	var SubtractEquation = 101;
-	var ReverseSubtractEquation = 102;
-	var MinEquation = 103;
-	var MaxEquation = 104;
-	var ZeroFactor = 200;
-	var OneFactor = 201;
-	var SrcColorFactor = 202;
-	var OneMinusSrcColorFactor = 203;
-	var SrcAlphaFactor = 204;
-	var OneMinusSrcAlphaFactor = 205;
-	var DstAlphaFactor = 206;
-	var OneMinusDstAlphaFactor = 207;
-	var DstColorFactor = 208;
-	var OneMinusDstColorFactor = 209;
-	var SrcAlphaSaturateFactor = 210;
-	var NeverDepth = 0;
-	var AlwaysDepth = 1;
-	var LessDepth = 2;
-	var LessEqualDepth = 3;
-	var EqualDepth = 4;
-	var GreaterEqualDepth = 5;
-	var GreaterDepth = 6;
-	var NotEqualDepth = 7;
-	var MultiplyOperation = 0;
-	var MixOperation = 1;
-	var AddOperation = 2;
-	var NoToneMapping = 0;
-	var LinearToneMapping = 1;
-	var ReinhardToneMapping = 2;
-	var Uncharted2ToneMapping = 3;
-	var CineonToneMapping = 4;
-	var ACESFilmicToneMapping = 5;
-
-	var UVMapping = 300;
-	var CubeReflectionMapping = 301;
-	var CubeRefractionMapping = 302;
-	var EquirectangularReflectionMapping = 303;
-	var EquirectangularRefractionMapping = 304;
-	var SphericalReflectionMapping = 305;
-	var CubeUVReflectionMapping = 306;
-	var CubeUVRefractionMapping = 307;
-	var RepeatWrapping = 1000;
-	var ClampToEdgeWrapping = 1001;
-	var MirroredRepeatWrapping = 1002;
-	var NearestFilter = 1003;
-	var NearestMipMapNearestFilter = 1004;
-	var NearestMipMapLinearFilter = 1005;
-	var LinearFilter = 1006;
-	var LinearMipMapNearestFilter = 1007;
-	var LinearMipMapLinearFilter = 1008;
-	var UnsignedByteType = 1009;
-	var ByteType = 1010;
-	var ShortType = 1011;
-	var UnsignedShortType = 1012;
-	var IntType = 1013;
-	var UnsignedIntType = 1014;
-	var FloatType = 1015;
-	var HalfFloatType = 1016;
-	var UnsignedShort4444Type = 1017;
-	var UnsignedShort5551Type = 1018;
-	var UnsignedShort565Type = 1019;
-	var UnsignedInt248Type = 1020;
-	var AlphaFormat = 1021;
-	var RGBFormat = 1022;
-	var RGBAFormat = 1023;
-	var LuminanceFormat = 1024;
-	var LuminanceAlphaFormat = 1025;
-	var RGBEFormat = RGBAFormat;
-	var DepthFormat = 1026;
-	var DepthStencilFormat = 1027;
-	var RedFormat = 1028;
-	var RGB_S3TC_DXT1_Format = 33776;
-	var RGBA_S3TC_DXT1_Format = 33777;
-	var RGBA_S3TC_DXT3_Format = 33778;
-	var RGBA_S3TC_DXT5_Format = 33779;
-	var RGB_PVRTC_4BPPV1_Format = 35840;
-	var RGB_PVRTC_2BPPV1_Format = 35841;
-	var RGBA_PVRTC_4BPPV1_Format = 35842;
-	var RGBA_PVRTC_2BPPV1_Format = 35843;
-	var RGB_ETC1_Format = 36196;
-	var RGBA_ASTC_4x4_Format = 37808;
-	var RGBA_ASTC_5x4_Format = 37809;
-	var RGBA_ASTC_5x5_Format = 37810;
-	var RGBA_ASTC_6x5_Format = 37811;
-	var RGBA_ASTC_6x6_Format = 37812;
-	var RGBA_ASTC_8x5_Format = 37813;
-	var RGBA_ASTC_8x6_Format = 37814;
-	var RGBA_ASTC_8x8_Format = 37815;
-	var RGBA_ASTC_10x5_Format = 37816;
-	var RGBA_ASTC_10x6_Format = 37817;
-	var RGBA_ASTC_10x8_Format = 37818;
-	var RGBA_ASTC_10x10_Format = 37819;
-	var RGBA_ASTC_12x10_Format = 37820;
-	var RGBA_ASTC_12x12_Format = 37821;
-	var LoopOnce = 2200;
-	var LoopRepeat = 2201;
-	var LoopPingPong = 2202;
-	var InterpolateDiscrete = 2300;
-	var InterpolateLinear = 2301;
-	var InterpolateSmooth = 2302;
-	var ZeroCurvatureEnding = 2400;
-	var ZeroSlopeEnding = 2401;
-	var WrapAroundEnding = 2402;
-	var TrianglesDrawMode = 0;
-	var TriangleStripDrawMode = 1;
-	var TriangleFanDrawMode = 2;
-	var LinearEncoding = 3000;
-	var sRGBEncoding = 3001;
-	var GammaEncoding = 3007;
-	var RGBEEncoding = 3002;
-	var LogLuvEncoding = 3003;
-	var RGBM7Encoding = 3004;
-	var RGBM16Encoding = 3005;
-	var RGBDEncoding = 3006;
-	var BasicDepthPacking = 3200;
-	var RGBADepthPacking = 3201;
-	var TangentSpaceNormalMap = 0;
-	var ObjectSpaceNormalMap = 1;
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var _Math = {
-
-		DEG2RAD: Math.PI / 180,
-		RAD2DEG: 180 / Math.PI,
-
-		generateUUID: ( function () {
-
-			// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
-
-			var lut = [];
-
-			for ( var i = 0; i < 256; i ++ ) {
-
-				lut[ i ] = ( i < 16 ? '0' : '' ) + ( i ).toString( 16 );
-
-			}
-
-			return function generateUUID() {
-
-				var d0 = Math.random() * 0xffffffff | 0;
-				var d1 = Math.random() * 0xffffffff | 0;
-				var d2 = Math.random() * 0xffffffff | 0;
-				var d3 = Math.random() * 0xffffffff | 0;
-				var uuid = lut[ d0 & 0xff ] + lut[ d0 >> 8 & 0xff ] + lut[ d0 >> 16 & 0xff ] + lut[ d0 >> 24 & 0xff ] + '-' +
-					lut[ d1 & 0xff ] + lut[ d1 >> 8 & 0xff ] + '-' + lut[ d1 >> 16 & 0x0f | 0x40 ] + lut[ d1 >> 24 & 0xff ] + '-' +
-					lut[ d2 & 0x3f | 0x80 ] + lut[ d2 >> 8 & 0xff ] + '-' + lut[ d2 >> 16 & 0xff ] + lut[ d2 >> 24 & 0xff ] +
-					lut[ d3 & 0xff ] + lut[ d3 >> 8 & 0xff ] + lut[ d3 >> 16 & 0xff ] + lut[ d3 >> 24 & 0xff ];
-
-				// .toUpperCase() here flattens concatenated strings to save heap memory space.
-				return uuid.toUpperCase();
-
-			};
-
-		} )(),
-
-		clamp: function ( value, min, max ) {
-
-			return Math.max( min, Math.min( max, value ) );
-
-		},
-
-		// compute euclidian modulo of m % n
-		// https://en.wikipedia.org/wiki/Modulo_operation
-
-		euclideanModulo: function ( n, m ) {
-
-			return ( ( n % m ) + m ) % m;
-
-		},
-
-		// Linear mapping from range <a1, a2> to range <b1, b2>
-
-		mapLinear: function ( x, a1, a2, b1, b2 ) {
-
-			return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );
-
-		},
-
-		// https://en.wikipedia.org/wiki/Linear_interpolation
-
-		lerp: function ( x, y, t ) {
-
-			return ( 1 - t ) * x + t * y;
-
-		},
-
-		// http://en.wikipedia.org/wiki/Smoothstep
-
-		smoothstep: function ( x, min, max ) {
-
-			if ( x <= min ) return 0;
-			if ( x >= max ) return 1;
-
-			x = ( x - min ) / ( max - min );
-
-			return x * x * ( 3 - 2 * x );
-
-		},
-
-		smootherstep: function ( x, min, max ) {
-
-			if ( x <= min ) return 0;
-			if ( x >= max ) return 1;
-
-			x = ( x - min ) / ( max - min );
-
-			return x * x * x * ( x * ( x * 6 - 15 ) + 10 );
-
-		},
-
-		// Random integer from <low, high> interval
-
-		randInt: function ( low, high ) {
-
-			return low + Math.floor( Math.random() * ( high - low + 1 ) );
-
-		},
-
-		// Random float from <low, high> interval
-
-		randFloat: function ( low, high ) {
-
-			return low + Math.random() * ( high - low );
-
-		},
-
-		// Random float from <-range/2, range/2> interval
-
-		randFloatSpread: function ( range ) {
-
-			return range * ( 0.5 - Math.random() );
-
-		},
-
-		degToRad: function ( degrees ) {
-
-			return degrees * _Math.DEG2RAD;
-
-		},
-
-		radToDeg: function ( radians ) {
-
-			return radians * _Math.RAD2DEG;
-
-		},
-
-		isPowerOfTwo: function ( value ) {
-
-			return ( value & ( value - 1 ) ) === 0 && value !== 0;
-
-		},
-
-		ceilPowerOfTwo: function ( value ) {
-
-			return Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) );
-
-		},
-
-		floorPowerOfTwo: function ( value ) {
-
-			return Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) );
-
-		}
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author philogb / http://blog.thejit.org/
-	 * @author egraether / http://egraether.com/
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 */
-
-	function Vector2( x, y ) {
-
-		this.x = x || 0;
-		this.y = y || 0;
-
-	}
-
-	Object.defineProperties( Vector2.prototype, {
-
-		"width": {
-
-			get: function () {
-
-				return this.x;
-
-			},
-
-			set: function ( value ) {
-
-				this.x = value;
-
-			}
-
-		},
-
-		"height": {
-
-			get: function () {
-
-				return this.y;
-
-			},
-
-			set: function ( value ) {
-
-				this.y = value;
-
-			}
-
-		}
-
-	} );
-
-	Object.assign( Vector2.prototype, {
-
-		isVector2: true,
-
-		set: function ( x, y ) {
-
-			this.x = x;
-			this.y = y;
-
-			return this;
-
-		},
-
-		setScalar: function ( scalar ) {
-
-			this.x = scalar;
-			this.y = scalar;
-
-			return this;
-
-		},
-
-		setX: function ( x ) {
-
-			this.x = x;
-
-			return this;
-
-		},
-
-		setY: function ( y ) {
-
-			this.y = y;
-
-			return this;
-
-		},
-
-		setComponent: function ( index, value ) {
-
-			switch ( index ) {
-
-				case 0: this.x = value; break;
-				case 1: this.y = value; break;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-			return this;
-
-		},
-
-		getComponent: function ( index ) {
-
-			switch ( index ) {
-
-				case 0: return this.x;
-				case 1: return this.y;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.x, this.y );
-
-		},
-
-		copy: function ( v ) {
-
-			this.x = v.x;
-			this.y = v.y;
-
-			return this;
-
-		},
-
-		add: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
-				return this.addVectors( v, w );
-
-			}
-
-			this.x += v.x;
-			this.y += v.y;
-
-			return this;
-
-		},
-
-		addScalar: function ( s ) {
-
-			this.x += s;
-			this.y += s;
-
-			return this;
-
-		},
-
-		addVectors: function ( a, b ) {
-
-			this.x = a.x + b.x;
-			this.y = a.y + b.y;
-
-			return this;
-
-		},
-
-		addScaledVector: function ( v, s ) {
-
-			this.x += v.x * s;
-			this.y += v.y * s;
-
-			return this;
-
-		},
-
-		sub: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
-				return this.subVectors( v, w );
-
-			}
-
-			this.x -= v.x;
-			this.y -= v.y;
-
-			return this;
-
-		},
-
-		subScalar: function ( s ) {
-
-			this.x -= s;
-			this.y -= s;
-
-			return this;
-
-		},
-
-		subVectors: function ( a, b ) {
-
-			this.x = a.x - b.x;
-			this.y = a.y - b.y;
-
-			return this;
-
-		},
-
-		multiply: function ( v ) {
-
-			this.x *= v.x;
-			this.y *= v.y;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( scalar ) {
-
-			this.x *= scalar;
-			this.y *= scalar;
-
-			return this;
-
-		},
-
-		divide: function ( v ) {
-
-			this.x /= v.x;
-			this.y /= v.y;
-
-			return this;
-
-		},
-
-		divideScalar: function ( scalar ) {
-
-			return this.multiplyScalar( 1 / scalar );
-
-		},
-
-		applyMatrix3: function ( m ) {
-
-			var x = this.x, y = this.y;
-			var e = m.elements;
-
-			this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ];
-			this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ];
-
-			return this;
-
-		},
-
-		min: function ( v ) {
-
-			this.x = Math.min( this.x, v.x );
-			this.y = Math.min( this.y, v.y );
-
-			return this;
-
-		},
-
-		max: function ( v ) {
-
-			this.x = Math.max( this.x, v.x );
-			this.y = Math.max( this.y, v.y );
-
-			return this;
-
-		},
-
-		clamp: function ( min, max ) {
-
-			// assumes min < max, componentwise
-
-			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
-			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
-
-			return this;
-
-		},
-
-		clampScalar: function ( minVal, maxVal ) {
-
-			this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
-			this.y = Math.max( minVal, Math.min( maxVal, this.y ) );
-
-			return this;
-
-		},
-
-		clampLength: function ( min, max ) {
-
-			var length = this.length();
-
-			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
-
-		},
-
-		floor: function () {
-
-			this.x = Math.floor( this.x );
-			this.y = Math.floor( this.y );
-
-			return this;
-
-		},
-
-		ceil: function () {
-
-			this.x = Math.ceil( this.x );
-			this.y = Math.ceil( this.y );
-
-			return this;
-
-		},
-
-		round: function () {
-
-			this.x = Math.round( this.x );
-			this.y = Math.round( this.y );
-
-			return this;
-
-		},
-
-		roundToZero: function () {
-
-			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
-			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
-
-			return this;
-
-		},
-
-		negate: function () {
-
-			this.x = - this.x;
-			this.y = - this.y;
-
-			return this;
-
-		},
-
-		dot: function ( v ) {
-
-			return this.x * v.x + this.y * v.y;
-
-		},
-
-		cross: function ( v ) {
-
-			return this.x * v.y - this.y * v.x;
-
-		},
-
-		lengthSq: function () {
-
-			return this.x * this.x + this.y * this.y;
-
-		},
-
-		length: function () {
-
-			return Math.sqrt( this.x * this.x + this.y * this.y );
-
-		},
-
-		manhattanLength: function () {
-
-			return Math.abs( this.x ) + Math.abs( this.y );
-
-		},
-
-		normalize: function () {
-
-			return this.divideScalar( this.length() || 1 );
-
-		},
-
-		angle: function () {
-
-			// computes the angle in radians with respect to the positive x-axis
-
-			var angle = Math.atan2( this.y, this.x );
-
-			if ( angle < 0 ) angle += 2 * Math.PI;
-
-			return angle;
-
-		},
-
-		distanceTo: function ( v ) {
-
-			return Math.sqrt( this.distanceToSquared( v ) );
-
-		},
-
-		distanceToSquared: function ( v ) {
-
-			var dx = this.x - v.x, dy = this.y - v.y;
-			return dx * dx + dy * dy;
-
-		},
-
-		manhattanDistanceTo: function ( v ) {
-
-			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );
-
-		},
-
-		setLength: function ( length ) {
-
-			return this.normalize().multiplyScalar( length );
-
-		},
-
-		lerp: function ( v, alpha ) {
-
-			this.x += ( v.x - this.x ) * alpha;
-			this.y += ( v.y - this.y ) * alpha;
-
-			return this;
-
-		},
-
-		lerpVectors: function ( v1, v2, alpha ) {
-
-			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
-
-		},
-
-		equals: function ( v ) {
-
-			return ( ( v.x === this.x ) && ( v.y === this.y ) );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.x = array[ offset ];
-			this.y = array[ offset + 1 ];
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this.x;
-			array[ offset + 1 ] = this.y;
-
-			return array;
-
-		},
-
-		fromBufferAttribute: function ( attribute, index, offset ) {
-
-			if ( offset !== undefined ) {
-
-				console.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' );
-
-			}
-
-			this.x = attribute.getX( index );
-			this.y = attribute.getY( index );
-
-			return this;
-
-		},
-
-		rotateAround: function ( center, angle ) {
-
-			var c = Math.cos( angle ), s = Math.sin( angle );
-
-			var x = this.x - center.x;
-			var y = this.y - center.y;
-
-			this.x = x * c - y * s + center.x;
-			this.y = x * s + y * c + center.y;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Quaternion( x, y, z, w ) {
-
-		this._x = x || 0;
-		this._y = y || 0;
-		this._z = z || 0;
-		this._w = ( w !== undefined ) ? w : 1;
-
-	}
-
-	Object.assign( Quaternion, {
-
-		slerp: function ( qa, qb, qm, t ) {
-
-			return qm.copy( qa ).slerp( qb, t );
-
-		},
-
-		slerpFlat: function ( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {
-
-			// fuzz-free, array-based Quaternion SLERP operation
-
-			var x0 = src0[ srcOffset0 + 0 ],
-				y0 = src0[ srcOffset0 + 1 ],
-				z0 = src0[ srcOffset0 + 2 ],
-				w0 = src0[ srcOffset0 + 3 ],
-
-				x1 = src1[ srcOffset1 + 0 ],
-				y1 = src1[ srcOffset1 + 1 ],
-				z1 = src1[ srcOffset1 + 2 ],
-				w1 = src1[ srcOffset1 + 3 ];
-
-			if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {
-
-				var s = 1 - t,
-
-					cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,
-
-					dir = ( cos >= 0 ? 1 : - 1 ),
-					sqrSin = 1 - cos * cos;
-
-				// Skip the Slerp for tiny steps to avoid numeric problems:
-				if ( sqrSin > Number.EPSILON ) {
-
-					var sin = Math.sqrt( sqrSin ),
-						len = Math.atan2( sin, cos * dir );
-
-					s = Math.sin( s * len ) / sin;
-					t = Math.sin( t * len ) / sin;
-
-				}
-
-				var tDir = t * dir;
-
-				x0 = x0 * s + x1 * tDir;
-				y0 = y0 * s + y1 * tDir;
-				z0 = z0 * s + z1 * tDir;
-				w0 = w0 * s + w1 * tDir;
-
-				// Normalize in case we just did a lerp:
-				if ( s === 1 - t ) {
-
-					var f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );
-
-					x0 *= f;
-					y0 *= f;
-					z0 *= f;
-					w0 *= f;
-
-				}
-
-			}
-
-			dst[ dstOffset ] = x0;
-			dst[ dstOffset + 1 ] = y0;
-			dst[ dstOffset + 2 ] = z0;
-			dst[ dstOffset + 3 ] = w0;
-
-		}
-
-	} );
-
-	Object.defineProperties( Quaternion.prototype, {
-
-		x: {
-
-			get: function () {
-
-				return this._x;
-
-			},
-
-			set: function ( value ) {
-
-				this._x = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		y: {
-
-			get: function () {
-
-				return this._y;
-
-			},
-
-			set: function ( value ) {
-
-				this._y = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		z: {
-
-			get: function () {
-
-				return this._z;
-
-			},
-
-			set: function ( value ) {
-
-				this._z = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		w: {
-
-			get: function () {
-
-				return this._w;
-
-			},
-
-			set: function ( value ) {
-
-				this._w = value;
-				this.onChangeCallback();
-
-			}
-
-		}
-
-	} );
-
-	Object.assign( Quaternion.prototype, {
-
-		isQuaternion: true,
-
-		set: function ( x, y, z, w ) {
-
-			this._x = x;
-			this._y = y;
-			this._z = z;
-			this._w = w;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this._x, this._y, this._z, this._w );
-
-		},
-
-		copy: function ( quaternion ) {
-
-			this._x = quaternion.x;
-			this._y = quaternion.y;
-			this._z = quaternion.z;
-			this._w = quaternion.w;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromEuler: function ( euler, update ) {
-
-			if ( ! ( euler && euler.isEuler ) ) {
-
-				throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );
-
-			}
-
-			var x = euler._x, y = euler._y, z = euler._z, order = euler.order;
-
-			// http://www.mathworks.com/matlabcentral/fileexchange/
-			// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
-			//	content/SpinCalc.m
-
-			var cos = Math.cos;
-			var sin = Math.sin;
-
-			var c1 = cos( x / 2 );
-			var c2 = cos( y / 2 );
-			var c3 = cos( z / 2 );
-
-			var s1 = sin( x / 2 );
-			var s2 = sin( y / 2 );
-			var s3 = sin( z / 2 );
-
-			if ( order === 'XYZ' ) {
-
-				this._x = s1 * c2 * c3 + c1 * s2 * s3;
-				this._y = c1 * s2 * c3 - s1 * c2 * s3;
-				this._z = c1 * c2 * s3 + s1 * s2 * c3;
-				this._w = c1 * c2 * c3 - s1 * s2 * s3;
-
-			} else if ( order === 'YXZ' ) {
-
-				this._x = s1 * c2 * c3 + c1 * s2 * s3;
-				this._y = c1 * s2 * c3 - s1 * c2 * s3;
-				this._z = c1 * c2 * s3 - s1 * s2 * c3;
-				this._w = c1 * c2 * c3 + s1 * s2 * s3;
-
-			} else if ( order === 'ZXY' ) {
-
-				this._x = s1 * c2 * c3 - c1 * s2 * s3;
-				this._y = c1 * s2 * c3 + s1 * c2 * s3;
-				this._z = c1 * c2 * s3 + s1 * s2 * c3;
-				this._w = c1 * c2 * c3 - s1 * s2 * s3;
-
-			} else if ( order === 'ZYX' ) {
-
-				this._x = s1 * c2 * c3 - c1 * s2 * s3;
-				this._y = c1 * s2 * c3 + s1 * c2 * s3;
-				this._z = c1 * c2 * s3 - s1 * s2 * c3;
-				this._w = c1 * c2 * c3 + s1 * s2 * s3;
-
-			} else if ( order === 'YZX' ) {
-
-				this._x = s1 * c2 * c3 + c1 * s2 * s3;
-				this._y = c1 * s2 * c3 + s1 * c2 * s3;
-				this._z = c1 * c2 * s3 - s1 * s2 * c3;
-				this._w = c1 * c2 * c3 - s1 * s2 * s3;
-
-			} else if ( order === 'XZY' ) {
-
-				this._x = s1 * c2 * c3 - c1 * s2 * s3;
-				this._y = c1 * s2 * c3 - s1 * c2 * s3;
-				this._z = c1 * c2 * s3 + s1 * s2 * c3;
-				this._w = c1 * c2 * c3 + s1 * s2 * s3;
-
-			}
-
-			if ( update !== false ) this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromAxisAngle: function ( axis, angle ) {
-
-			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
-
-			// assumes axis is normalized
-
-			var halfAngle = angle / 2, s = Math.sin( halfAngle );
-
-			this._x = axis.x * s;
-			this._y = axis.y * s;
-			this._z = axis.z * s;
-			this._w = Math.cos( halfAngle );
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromRotationMatrix: function ( m ) {
-
-			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
-
-			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
-			var te = m.elements,
-
-				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
-				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
-				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],
-
-				trace = m11 + m22 + m33,
-				s;
-
-			if ( trace > 0 ) {
-
-				s = 0.5 / Math.sqrt( trace + 1.0 );
-
-				this._w = 0.25 / s;
-				this._x = ( m32 - m23 ) * s;
-				this._y = ( m13 - m31 ) * s;
-				this._z = ( m21 - m12 ) * s;
-
-			} else if ( m11 > m22 && m11 > m33 ) {
-
-				s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );
-
-				this._w = ( m32 - m23 ) / s;
-				this._x = 0.25 * s;
-				this._y = ( m12 + m21 ) / s;
-				this._z = ( m13 + m31 ) / s;
-
-			} else if ( m22 > m33 ) {
-
-				s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );
-
-				this._w = ( m13 - m31 ) / s;
-				this._x = ( m12 + m21 ) / s;
-				this._y = 0.25 * s;
-				this._z = ( m23 + m32 ) / s;
-
-			} else {
-
-				s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );
-
-				this._w = ( m21 - m12 ) / s;
-				this._x = ( m13 + m31 ) / s;
-				this._y = ( m23 + m32 ) / s;
-				this._z = 0.25 * s;
-
-			}
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromUnitVectors: function ( vFrom, vTo ) {
-
-			// assumes direction vectors vFrom and vTo are normalized
-
-			var EPS = 0.000001;
-
-			var r = vFrom.dot( vTo ) + 1;
-
-			if ( r < EPS ) {
-
-				r = 0;
-
-				if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {
-
-					this._x = - vFrom.y;
-					this._y = vFrom.x;
-					this._z = 0;
-					this._w = r;
-
-				} else {
-
-					this._x = 0;
-					this._y = - vFrom.z;
-					this._z = vFrom.y;
-					this._w = r;
-
-				}
-
-			} else {
-
-				// crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3
-
-				this._x = vFrom.y * vTo.z - vFrom.z * vTo.y;
-				this._y = vFrom.z * vTo.x - vFrom.x * vTo.z;
-				this._z = vFrom.x * vTo.y - vFrom.y * vTo.x;
-				this._w = r;
-
-			}
-
-			return this.normalize();
-
-		},
-
-		angleTo: function ( q ) {
-
-			return 2 * Math.acos( Math.abs( _Math.clamp( this.dot( q ), - 1, 1 ) ) );
-
-		},
-
-		rotateTowards: function ( q, step ) {
-
-			var angle = this.angleTo( q );
-
-			if ( angle === 0 ) return this;
-
-			var t = Math.min( 1, step / angle );
-
-			this.slerp( q, t );
-
-			return this;
-
-		},
-
-		inverse: function () {
-
-			// quaternion is assumed to have unit length
-
-			return this.conjugate();
-
-		},
-
-		conjugate: function () {
-
-			this._x *= - 1;
-			this._y *= - 1;
-			this._z *= - 1;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		dot: function ( v ) {
-
-			return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;
-
-		},
-
-		lengthSq: function () {
-
-			return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;
-
-		},
-
-		length: function () {
-
-			return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );
-
-		},
-
-		normalize: function () {
-
-			var l = this.length();
-
-			if ( l === 0 ) {
-
-				this._x = 0;
-				this._y = 0;
-				this._z = 0;
-				this._w = 1;
-
-			} else {
-
-				l = 1 / l;
-
-				this._x = this._x * l;
-				this._y = this._y * l;
-				this._z = this._z * l;
-				this._w = this._w * l;
-
-			}
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		multiply: function ( q, p ) {
-
-			if ( p !== undefined ) {
-
-				console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
-				return this.multiplyQuaternions( q, p );
-
-			}
-
-			return this.multiplyQuaternions( this, q );
-
-		},
-
-		premultiply: function ( q ) {
-
-			return this.multiplyQuaternions( q, this );
-
-		},
-
-		multiplyQuaternions: function ( a, b ) {
-
-			// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
-
-			var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
-			var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;
-
-			this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
-			this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
-			this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
-			this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		slerp: function ( qb, t ) {
-
-			if ( t === 0 ) return this;
-			if ( t === 1 ) return this.copy( qb );
-
-			var x = this._x, y = this._y, z = this._z, w = this._w;
-
-			// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/
-
-			var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;
-
-			if ( cosHalfTheta < 0 ) {
-
-				this._w = - qb._w;
-				this._x = - qb._x;
-				this._y = - qb._y;
-				this._z = - qb._z;
-
-				cosHalfTheta = - cosHalfTheta;
-
-			} else {
-
-				this.copy( qb );
-
-			}
-
-			if ( cosHalfTheta >= 1.0 ) {
-
-				this._w = w;
-				this._x = x;
-				this._y = y;
-				this._z = z;
-
-				return this;
-
-			}
-
-			var sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta;
-
-			if ( sqrSinHalfTheta <= Number.EPSILON ) {
-
-				var s = 1 - t;
-				this._w = s * w + t * this._w;
-				this._x = s * x + t * this._x;
-				this._y = s * y + t * this._y;
-				this._z = s * z + t * this._z;
-
-				return this.normalize();
-
-			}
-
-			var sinHalfTheta = Math.sqrt( sqrSinHalfTheta );
-			var halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );
-			var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
-				ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;
-
-			this._w = ( w * ratioA + this._w * ratioB );
-			this._x = ( x * ratioA + this._x * ratioB );
-			this._y = ( y * ratioA + this._y * ratioB );
-			this._z = ( z * ratioA + this._z * ratioB );
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		equals: function ( quaternion ) {
-
-			return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this._x = array[ offset ];
-			this._y = array[ offset + 1 ];
-			this._z = array[ offset + 2 ];
-			this._w = array[ offset + 3 ];
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this._x;
-			array[ offset + 1 ] = this._y;
-			array[ offset + 2 ] = this._z;
-			array[ offset + 3 ] = this._w;
-
-			return array;
-
-		},
-
-		onChange: function ( callback ) {
-
-			this.onChangeCallback = callback;
-
-			return this;
-
-		},
-
-		onChangeCallback: function () {}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author kile / http://kile.stravaganza.org/
-	 * @author philogb / http://blog.thejit.org/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author egraether / http://egraether.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Vector3( x, y, z ) {
-
-		this.x = x || 0;
-		this.y = y || 0;
-		this.z = z || 0;
-
-	}
-
-	Object.assign( Vector3.prototype, {
-
-		isVector3: true,
-
-		set: function ( x, y, z ) {
-
-			this.x = x;
-			this.y = y;
-			this.z = z;
-
-			return this;
-
-		},
-
-		setScalar: function ( scalar ) {
-
-			this.x = scalar;
-			this.y = scalar;
-			this.z = scalar;
-
-			return this;
-
-		},
-
-		setX: function ( x ) {
-
-			this.x = x;
-
-			return this;
-
-		},
-
-		setY: function ( y ) {
-
-			this.y = y;
-
-			return this;
-
-		},
-
-		setZ: function ( z ) {
-
-			this.z = z;
-
-			return this;
-
-		},
-
-		setComponent: function ( index, value ) {
-
-			switch ( index ) {
-
-				case 0: this.x = value; break;
-				case 1: this.y = value; break;
-				case 2: this.z = value; break;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-			return this;
-
-		},
-
-		getComponent: function ( index ) {
-
-			switch ( index ) {
-
-				case 0: return this.x;
-				case 1: return this.y;
-				case 2: return this.z;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.x, this.y, this.z );
-
-		},
-
-		copy: function ( v ) {
-
-			this.x = v.x;
-			this.y = v.y;
-			this.z = v.z;
-
-			return this;
-
-		},
-
-		add: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
-				return this.addVectors( v, w );
-
-			}
-
-			this.x += v.x;
-			this.y += v.y;
-			this.z += v.z;
-
-			return this;
-
-		},
-
-		addScalar: function ( s ) {
-
-			this.x += s;
-			this.y += s;
-			this.z += s;
-
-			return this;
-
-		},
-
-		addVectors: function ( a, b ) {
-
-			this.x = a.x + b.x;
-			this.y = a.y + b.y;
-			this.z = a.z + b.z;
-
-			return this;
-
-		},
-
-		addScaledVector: function ( v, s ) {
-
-			this.x += v.x * s;
-			this.y += v.y * s;
-			this.z += v.z * s;
-
-			return this;
-
-		},
-
-		sub: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
-				return this.subVectors( v, w );
-
-			}
-
-			this.x -= v.x;
-			this.y -= v.y;
-			this.z -= v.z;
-
-			return this;
-
-		},
-
-		subScalar: function ( s ) {
-
-			this.x -= s;
-			this.y -= s;
-			this.z -= s;
-
-			return this;
-
-		},
-
-		subVectors: function ( a, b ) {
-
-			this.x = a.x - b.x;
-			this.y = a.y - b.y;
-			this.z = a.z - b.z;
-
-			return this;
-
-		},
-
-		multiply: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );
-				return this.multiplyVectors( v, w );
-
-			}
-
-			this.x *= v.x;
-			this.y *= v.y;
-			this.z *= v.z;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( scalar ) {
-
-			this.x *= scalar;
-			this.y *= scalar;
-			this.z *= scalar;
-
-			return this;
-
-		},
-
-		multiplyVectors: function ( a, b ) {
-
-			this.x = a.x * b.x;
-			this.y = a.y * b.y;
-			this.z = a.z * b.z;
-
-			return this;
-
-		},
-
-		applyEuler: function () {
-
-			var quaternion = new Quaternion();
-
-			return function applyEuler( euler ) {
-
-				if ( ! ( euler && euler.isEuler ) ) {
-
-					console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );
-
-				}
-
-				return this.applyQuaternion( quaternion.setFromEuler( euler ) );
-
-			};
-
-		}(),
-
-		applyAxisAngle: function () {
-
-			var quaternion = new Quaternion();
-
-			return function applyAxisAngle( axis, angle ) {
-
-				return this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );
-
-			};
-
-		}(),
-
-		applyMatrix3: function ( m ) {
-
-			var x = this.x, y = this.y, z = this.z;
-			var e = m.elements;
-
-			this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
-			this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
-			this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;
-
-			return this;
-
-		},
-
-		applyMatrix4: function ( m ) {
-
-			var x = this.x, y = this.y, z = this.z;
-			var e = m.elements;
-
-			var w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );
-
-			this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w;
-			this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w;
-			this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;
-
-			return this;
-
-		},
-
-		applyQuaternion: function ( q ) {
-
-			var x = this.x, y = this.y, z = this.z;
-			var qx = q.x, qy = q.y, qz = q.z, qw = q.w;
-
-			// calculate quat * vector
-
-			var ix = qw * x + qy * z - qz * y;
-			var iy = qw * y + qz * x - qx * z;
-			var iz = qw * z + qx * y - qy * x;
-			var iw = - qx * x - qy * y - qz * z;
-
-			// calculate result * inverse quat
-
-			this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
-			this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
-			this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;
-
-			return this;
-
-		},
-
-		project: function ( camera ) {
-
-			return this.applyMatrix4( camera.matrixWorldInverse ).applyMatrix4( camera.projectionMatrix );
-
-		},
-
-		unproject: function ( camera ) {
-
-			return this.applyMatrix4( camera.projectionMatrixInverse ).applyMatrix4( camera.matrixWorld );
-
-		},
-
-		transformDirection: function ( m ) {
-
-			// input: THREE.Matrix4 affine matrix
-			// vector interpreted as a direction
-
-			var x = this.x, y = this.y, z = this.z;
-			var e = m.elements;
-
-			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;
-			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;
-			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;
-
-			return this.normalize();
-
-		},
-
-		divide: function ( v ) {
-
-			this.x /= v.x;
-			this.y /= v.y;
-			this.z /= v.z;
-
-			return this;
-
-		},
-
-		divideScalar: function ( scalar ) {
-
-			return this.multiplyScalar( 1 / scalar );
-
-		},
-
-		min: function ( v ) {
-
-			this.x = Math.min( this.x, v.x );
-			this.y = Math.min( this.y, v.y );
-			this.z = Math.min( this.z, v.z );
-
-			return this;
-
-		},
-
-		max: function ( v ) {
-
-			this.x = Math.max( this.x, v.x );
-			this.y = Math.max( this.y, v.y );
-			this.z = Math.max( this.z, v.z );
-
-			return this;
-
-		},
-
-		clamp: function ( min, max ) {
-
-			// assumes min < max, componentwise
-
-			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
-			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
-			this.z = Math.max( min.z, Math.min( max.z, this.z ) );
-
-			return this;
-
-		},
-
-		clampScalar: function ( minVal, maxVal ) {
-
-			this.x = Math.max( minVal, Math.min( maxVal, this.x ) );
-			this.y = Math.max( minVal, Math.min( maxVal, this.y ) );
-			this.z = Math.max( minVal, Math.min( maxVal, this.z ) );
-
-			return this;
-
-		},
-
-		clampLength: function ( min, max ) {
-
-			var length = this.length();
-
-			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
-
-		},
-
-		floor: function () {
-
-			this.x = Math.floor( this.x );
-			this.y = Math.floor( this.y );
-			this.z = Math.floor( this.z );
-
-			return this;
-
-		},
-
-		ceil: function () {
-
-			this.x = Math.ceil( this.x );
-			this.y = Math.ceil( this.y );
-			this.z = Math.ceil( this.z );
-
-			return this;
-
-		},
-
-		round: function () {
-
-			this.x = Math.round( this.x );
-			this.y = Math.round( this.y );
-			this.z = Math.round( this.z );
-
-			return this;
-
-		},
-
-		roundToZero: function () {
-
-			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
-			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
-			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
-
-			return this;
-
-		},
-
-		negate: function () {
-
-			this.x = - this.x;
-			this.y = - this.y;
-			this.z = - this.z;
-
-			return this;
-
-		},
-
-		dot: function ( v ) {
-
-			return this.x * v.x + this.y * v.y + this.z * v.z;
-
-		},
-
-		// TODO lengthSquared?
-
-		lengthSq: function () {
-
-			return this.x * this.x + this.y * this.y + this.z * this.z;
-
-		},
-
-		length: function () {
-
-			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );
-
-		},
-
-		manhattanLength: function () {
-
-			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );
-
-		},
-
-		normalize: function () {
-
-			return this.divideScalar( this.length() || 1 );
-
-		},
-
-		setLength: function ( length ) {
-
-			return this.normalize().multiplyScalar( length );
-
-		},
-
-		lerp: function ( v, alpha ) {
-
-			this.x += ( v.x - this.x ) * alpha;
-			this.y += ( v.y - this.y ) * alpha;
-			this.z += ( v.z - this.z ) * alpha;
-
-			return this;
-
-		},
-
-		lerpVectors: function ( v1, v2, alpha ) {
-
-			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
-
-		},
-
-		cross: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );
-				return this.crossVectors( v, w );
-
-			}
-
-			return this.crossVectors( this, v );
-
-		},
-
-		crossVectors: function ( a, b ) {
-
-			var ax = a.x, ay = a.y, az = a.z;
-			var bx = b.x, by = b.y, bz = b.z;
-
-			this.x = ay * bz - az * by;
-			this.y = az * bx - ax * bz;
-			this.z = ax * by - ay * bx;
-
-			return this;
-
-		},
-
-		projectOnVector: function ( vector ) {
-
-			var scalar = vector.dot( this ) / vector.lengthSq();
-
-			return this.copy( vector ).multiplyScalar( scalar );
-
-		},
-
-		projectOnPlane: function () {
-
-			var v1 = new Vector3();
-
-			return function projectOnPlane( planeNormal ) {
-
-				v1.copy( this ).projectOnVector( planeNormal );
-
-				return this.sub( v1 );
-
-			};
-
-		}(),
-
-		reflect: function () {
-
-			// reflect incident vector off plane orthogonal to normal
-			// normal is assumed to have unit length
-
-			var v1 = new Vector3();
-
-			return function reflect( normal ) {
-
-				return this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );
-
-			};
-
-		}(),
-
-		angleTo: function ( v ) {
-
-			var theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );
-
-			// clamp, to handle numerical problems
-
-			return Math.acos( _Math.clamp( theta, - 1, 1 ) );
-
-		},
-
-		distanceTo: function ( v ) {
-
-			return Math.sqrt( this.distanceToSquared( v ) );
-
-		},
-
-		distanceToSquared: function ( v ) {
-
-			var dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;
-
-			return dx * dx + dy * dy + dz * dz;
-
-		},
-
-		manhattanDistanceTo: function ( v ) {
-
-			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );
-
-		},
-
-		setFromSpherical: function ( s ) {
-
-			return this.setFromSphericalCoords( s.radius, s.phi, s.theta );
-
-		},
-
-		setFromSphericalCoords: function ( radius, phi, theta ) {
-
-			var sinPhiRadius = Math.sin( phi ) * radius;
-
-			this.x = sinPhiRadius * Math.sin( theta );
-			this.y = Math.cos( phi ) * radius;
-			this.z = sinPhiRadius * Math.cos( theta );
-
-			return this;
-
-		},
-
-		setFromCylindrical: function ( c ) {
-
-			return this.setFromCylindricalCoords( c.radius, c.theta, c.y );
-
-		},
-
-		setFromCylindricalCoords: function ( radius, theta, y ) {
-
-			this.x = radius * Math.sin( theta );
-			this.y = y;
-			this.z = radius * Math.cos( theta );
-
-			return this;
-
-		},
-
-		setFromMatrixPosition: function ( m ) {
-
-			var e = m.elements;
-
-			this.x = e[ 12 ];
-			this.y = e[ 13 ];
-			this.z = e[ 14 ];
-
-			return this;
-
-		},
-
-		setFromMatrixScale: function ( m ) {
-
-			var sx = this.setFromMatrixColumn( m, 0 ).length();
-			var sy = this.setFromMatrixColumn( m, 1 ).length();
-			var sz = this.setFromMatrixColumn( m, 2 ).length();
-
-			this.x = sx;
-			this.y = sy;
-			this.z = sz;
-
-			return this;
-
-		},
-
-		setFromMatrixColumn: function ( m, index ) {
-
-			return this.fromArray( m.elements, index * 4 );
-
-		},
-
-		equals: function ( v ) {
-
-			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.x = array[ offset ];
-			this.y = array[ offset + 1 ];
-			this.z = array[ offset + 2 ];
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this.x;
-			array[ offset + 1 ] = this.y;
-			array[ offset + 2 ] = this.z;
-
-			return array;
-
-		},
-
-		fromBufferAttribute: function ( attribute, index, offset ) {
-
-			if ( offset !== undefined ) {
-
-				console.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' );
-
-			}
-
-			this.x = attribute.getX( index );
-			this.y = attribute.getY( index );
-			this.z = attribute.getZ( index );
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author bhouston / http://clara.io
-	 * @author tschw
-	 */
-
-	function Matrix3() {
-
-		this.elements = [
-
-			1, 0, 0,
-			0, 1, 0,
-			0, 0, 1
-
-		];
-
-		if ( arguments.length > 0 ) {
-
-			console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );
-
-		}
-
-	}
-
-	Object.assign( Matrix3.prototype, {
-
-		isMatrix3: true,
-
-		set: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {
-
-			var te = this.elements;
-
-			te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;
-			te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;
-			te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;
-
-			return this;
-
-		},
-
-		identity: function () {
-
-			this.set(
-
-				1, 0, 0,
-				0, 1, 0,
-				0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().fromArray( this.elements );
-
-		},
-
-		copy: function ( m ) {
-
-			var te = this.elements;
-			var me = m.elements;
-
-			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];
-			te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];
-			te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];
-
-			return this;
-
-		},
-
-		setFromMatrix4: function ( m ) {
-
-			var me = m.elements;
-
-			this.set(
-
-				me[ 0 ], me[ 4 ], me[ 8 ],
-				me[ 1 ], me[ 5 ], me[ 9 ],
-				me[ 2 ], me[ 6 ], me[ 10 ]
-
-			);
-
-			return this;
-
-		},
-
-		applyToBufferAttribute: function () {
-
-			var v1 = new Vector3();
-
-			return function applyToBufferAttribute( attribute ) {
-
-				for ( var i = 0, l = attribute.count; i < l; i ++ ) {
-
-					v1.x = attribute.getX( i );
-					v1.y = attribute.getY( i );
-					v1.z = attribute.getZ( i );
-
-					v1.applyMatrix3( this );
-
-					attribute.setXYZ( i, v1.x, v1.y, v1.z );
-
-				}
-
-				return attribute;
-
-			};
-
-		}(),
-
-		multiply: function ( m ) {
-
-			return this.multiplyMatrices( this, m );
-
-		},
-
-		premultiply: function ( m ) {
-
-			return this.multiplyMatrices( m, this );
-
-		},
-
-		multiplyMatrices: function ( a, b ) {
-
-			var ae = a.elements;
-			var be = b.elements;
-			var te = this.elements;
-
-			var a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];
-			var a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];
-			var a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];
-
-			var b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];
-			var b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];
-			var b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];
-
-			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;
-			te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;
-			te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;
-
-			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;
-			te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;
-			te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;
-
-			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;
-			te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;
-			te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( s ) {
-
-			var te = this.elements;
-
-			te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;
-			te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;
-			te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;
-
-			return this;
-
-		},
-
-		determinant: function () {
-
-			var te = this.elements;
-
-			var a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],
-				d = te[ 3 ], e = te[ 4 ], f = te[ 5 ],
-				g = te[ 6 ], h = te[ 7 ], i = te[ 8 ];
-
-			return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;
-
-		},
-
-		getInverse: function ( matrix, throwOnDegenerate ) {
-
-			if ( matrix && matrix.isMatrix4 ) {
-
-				console.error( "THREE.Matrix3: .getInverse() no longer takes a Matrix4 argument." );
-
-			}
-
-			var me = matrix.elements,
-				te = this.elements,
-
-				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ],
-				n12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ],
-				n13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ],
-
-				t11 = n33 * n22 - n32 * n23,
-				t12 = n32 * n13 - n33 * n12,
-				t13 = n23 * n12 - n22 * n13,
-
-				det = n11 * t11 + n21 * t12 + n31 * t13;
-
-			if ( det === 0 ) {
-
-				var msg = "THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0";
-
-				if ( throwOnDegenerate === true ) {
-
-					throw new Error( msg );
-
-				} else {
-
-					console.warn( msg );
-
-				}
-
-				return this.identity();
-
-			}
-
-			var detInv = 1 / det;
-
-			te[ 0 ] = t11 * detInv;
-			te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;
-			te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;
-
-			te[ 3 ] = t12 * detInv;
-			te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;
-			te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;
-
-			te[ 6 ] = t13 * detInv;
-			te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;
-			te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;
-
-			return this;
-
-		},
-
-		transpose: function () {
-
-			var tmp, m = this.elements;
-
-			tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;
-			tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;
-			tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;
-
-			return this;
-
-		},
-
-		getNormalMatrix: function ( matrix4 ) {
-
-			return this.setFromMatrix4( matrix4 ).getInverse( this ).transpose();
-
-		},
-
-		transposeIntoArray: function ( r ) {
-
-			var m = this.elements;
-
-			r[ 0 ] = m[ 0 ];
-			r[ 1 ] = m[ 3 ];
-			r[ 2 ] = m[ 6 ];
-			r[ 3 ] = m[ 1 ];
-			r[ 4 ] = m[ 4 ];
-			r[ 5 ] = m[ 7 ];
-			r[ 6 ] = m[ 2 ];
-			r[ 7 ] = m[ 5 ];
-			r[ 8 ] = m[ 8 ];
-
-			return this;
-
-		},
-
-		setUvTransform: function ( tx, ty, sx, sy, rotation, cx, cy ) {
-
-			var c = Math.cos( rotation );
-			var s = Math.sin( rotation );
-
-			this.set(
-				sx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx,
-				- sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty,
-				0, 0, 1
-			);
-
-		},
-
-		scale: function ( sx, sy ) {
-
-			var te = this.elements;
-
-			te[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx;
-			te[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy;
-
-			return this;
-
-		},
-
-		rotate: function ( theta ) {
-
-			var c = Math.cos( theta );
-			var s = Math.sin( theta );
-
-			var te = this.elements;
-
-			var a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ];
-			var a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ];
-
-			te[ 0 ] = c * a11 + s * a21;
-			te[ 3 ] = c * a12 + s * a22;
-			te[ 6 ] = c * a13 + s * a23;
-
-			te[ 1 ] = - s * a11 + c * a21;
-			te[ 4 ] = - s * a12 + c * a22;
-			te[ 7 ] = - s * a13 + c * a23;
-
-			return this;
-
-		},
-
-		translate: function ( tx, ty ) {
-
-			var te = this.elements;
-
-			te[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ];
-			te[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ];
-
-			return this;
-
-		},
-
-		equals: function ( matrix ) {
-
-			var te = this.elements;
-			var me = matrix.elements;
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				if ( te[ i ] !== me[ i ] ) return false;
-
-			}
-
-			return true;
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				this.elements[ i ] = array[ i + offset ];
-
-			}
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			var te = this.elements;
-
-			array[ offset ] = te[ 0 ];
-			array[ offset + 1 ] = te[ 1 ];
-			array[ offset + 2 ] = te[ 2 ];
-
-			array[ offset + 3 ] = te[ 3 ];
-			array[ offset + 4 ] = te[ 4 ];
-			array[ offset + 5 ] = te[ 5 ];
-
-			array[ offset + 6 ] = te[ 6 ];
-			array[ offset + 7 ] = te[ 7 ];
-			array[ offset + 8 ] = te[ 8 ];
-
-			return array;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author szimek / https://github.com/szimek/
-	 */
-
-	var _canvas;
-
-	var ImageUtils = {
-
-		getDataURL: function ( image ) {
-
-			var canvas;
-
-			if ( typeof HTMLCanvasElement == 'undefined' ) {
-
-				return image.src;
-
-			} else if ( image instanceof HTMLCanvasElement ) {
-
-				canvas = image;
-
-			} else {
-
-				if ( _canvas === undefined ) _canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
-
-				_canvas.width = image.width;
-				_canvas.height = image.height;
-
-				var context = _canvas.getContext( '2d' );
-
-				if ( image instanceof ImageData ) {
-
-					context.putImageData( image, 0, 0 );
-
-				} else {
-
-					context.drawImage( image, 0, 0, image.width, image.height );
-
-				}
-
-				canvas = _canvas;
-
-			}
-
-			if ( canvas.width > 2048 || canvas.height > 2048 ) {
-
-				return canvas.toDataURL( 'image/jpeg', 0.6 );
-
-			} else {
-
-				return canvas.toDataURL( 'image/png' );
-
-			}
-
-		}
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author szimek / https://github.com/szimek/
-	 */
-
-	var textureId = 0;
-
-	function Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {
-
-		Object.defineProperty( this, 'id', { value: textureId ++ } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-
-		this.image = image !== undefined ? image : Texture.DEFAULT_IMAGE;
-		this.mipmaps = [];
-
-		this.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING;
-
-		this.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping;
-		this.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping;
-
-		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
-		this.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter;
-
-		this.anisotropy = anisotropy !== undefined ? anisotropy : 1;
-
-		this.format = format !== undefined ? format : RGBAFormat;
-		this.type = type !== undefined ? type : UnsignedByteType;
-
-		this.offset = new Vector2( 0, 0 );
-		this.repeat = new Vector2( 1, 1 );
-		this.center = new Vector2( 0, 0 );
-		this.rotation = 0;
-
-		this.matrixAutoUpdate = true;
-		this.matrix = new Matrix3();
-
-		this.generateMipmaps = true;
-		this.premultiplyAlpha = false;
-		this.flipY = true;
-		this.unpackAlignment = 4;	// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)
-
-		// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
-		//
-		// Also changing the encoding after already used by a Material will not automatically make the Material
-		// update. You need to explicitly call Material.needsUpdate to trigger it to recompile.
-		this.encoding = encoding !== undefined ? encoding : LinearEncoding;
-
-		this.version = 0;
-		this.onUpdate = null;
-
-	}
-
-	Texture.DEFAULT_IMAGE = undefined;
-	Texture.DEFAULT_MAPPING = UVMapping;
-
-	Texture.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: Texture,
-
-		isTexture: true,
-
-		updateMatrix: function () {
-
-			this.matrix.setUvTransform( this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y );
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.name = source.name;
-
-			this.image = source.image;
-			this.mipmaps = source.mipmaps.slice( 0 );
-
-			this.mapping = source.mapping;
-
-			this.wrapS = source.wrapS;
-			this.wrapT = source.wrapT;
-
-			this.magFilter = source.magFilter;
-			this.minFilter = source.minFilter;
-
-			this.anisotropy = source.anisotropy;
-
-			this.format = source.format;
-			this.type = source.type;
-
-			this.offset.copy( source.offset );
-			this.repeat.copy( source.repeat );
-			this.center.copy( source.center );
-			this.rotation = source.rotation;
-
-			this.matrixAutoUpdate = source.matrixAutoUpdate;
-			this.matrix.copy( source.matrix );
-
-			this.generateMipmaps = source.generateMipmaps;
-			this.premultiplyAlpha = source.premultiplyAlpha;
-			this.flipY = source.flipY;
-			this.unpackAlignment = source.unpackAlignment;
-			this.encoding = source.encoding;
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var isRootObject = ( meta === undefined || typeof meta === 'string' );
-
-			if ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) {
-
-				return meta.textures[ this.uuid ];
-
-			}
-
-			var output = {
-
-				metadata: {
-					version: 4.5,
-					type: 'Texture',
-					generator: 'Texture.toJSON'
-				},
-
-				uuid: this.uuid,
-				name: this.name,
-
-				mapping: this.mapping,
-
-				repeat: [ this.repeat.x, this.repeat.y ],
-				offset: [ this.offset.x, this.offset.y ],
-				center: [ this.center.x, this.center.y ],
-				rotation: this.rotation,
-
-				wrap: [ this.wrapS, this.wrapT ],
-
-				format: this.format,
-				type: this.type,
-				encoding: this.encoding,
-
-				minFilter: this.minFilter,
-				magFilter: this.magFilter,
-				anisotropy: this.anisotropy,
-
-				flipY: this.flipY,
-
-				premultiplyAlpha: this.premultiplyAlpha,
-				unpackAlignment: this.unpackAlignment
-
-			};
-
-			if ( this.image !== undefined ) {
-
-				// TODO: Move to THREE.Image
-
-				var image = this.image;
-
-				if ( image.uuid === undefined ) {
-
-					image.uuid = _Math.generateUUID(); // UGH
-
-				}
-
-				if ( ! isRootObject && meta.images[ image.uuid ] === undefined ) {
-
-					var url;
-
-					if ( Array.isArray( image ) ) {
-
-						// process array of images e.g. CubeTexture
-
-						url = [];
-
-						for ( var i = 0, l = image.length; i < l; i ++ ) {
-
-							url.push( ImageUtils.getDataURL( image[ i ] ) );
-
-						}
-
-					} else {
-
-						// process single image
-
-						url = ImageUtils.getDataURL( image );
-
-					}
-
-					meta.images[ image.uuid ] = {
-						uuid: image.uuid,
-						url: url
-					};
-
-				}
-
-				output.image = image.uuid;
-
-			}
-
-			if ( ! isRootObject ) {
-
-				meta.textures[ this.uuid ] = output;
-
-			}
-
-			return output;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		},
-
-		transformUv: function ( uv ) {
-
-			if ( this.mapping !== UVMapping ) return uv;
-
-			uv.applyMatrix3( this.matrix );
-
-			if ( uv.x < 0 || uv.x > 1 ) {
-
-				switch ( this.wrapS ) {
-
-					case RepeatWrapping:
-
-						uv.x = uv.x - Math.floor( uv.x );
-						break;
-
-					case ClampToEdgeWrapping:
-
-						uv.x = uv.x < 0 ? 0 : 1;
-						break;
-
-					case MirroredRepeatWrapping:
-
-						if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {
-
-							uv.x = Math.ceil( uv.x ) - uv.x;
-
-						} else {
-
-							uv.x = uv.x - Math.floor( uv.x );
-
-						}
-						break;
-
-				}
-
-			}
-
-			if ( uv.y < 0 || uv.y > 1 ) {
-
-				switch ( this.wrapT ) {
-
-					case RepeatWrapping:
-
-						uv.y = uv.y - Math.floor( uv.y );
-						break;
-
-					case ClampToEdgeWrapping:
-
-						uv.y = uv.y < 0 ? 0 : 1;
-						break;
-
-					case MirroredRepeatWrapping:
-
-						if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {
-
-							uv.y = Math.ceil( uv.y ) - uv.y;
-
-						} else {
-
-							uv.y = uv.y - Math.floor( uv.y );
-
-						}
-						break;
-
-				}
-
-			}
-
-			if ( this.flipY ) {
-
-				uv.y = 1 - uv.y;
-
-			}
-
-			return uv;
-
-		}
-
-	} );
-
-	Object.defineProperty( Texture.prototype, "needsUpdate", {
-
-		set: function ( value ) {
-
-			if ( value === true ) this.version ++;
-
-		}
-
-	} );
-
-	/**
-	 * @author supereggbert / http://www.paulbrunt.co.uk/
-	 * @author philogb / http://blog.thejit.org/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author egraether / http://egraether.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Vector4( x, y, z, w ) {
-
-		this.x = x || 0;
-		this.y = y || 0;
-		this.z = z || 0;
-		this.w = ( w !== undefined ) ? w : 1;
-
-	}
-
-	Object.assign( Vector4.prototype, {
-
-		isVector4: true,
-
-		set: function ( x, y, z, w ) {
-
-			this.x = x;
-			this.y = y;
-			this.z = z;
-			this.w = w;
-
-			return this;
-
-		},
-
-		setScalar: function ( scalar ) {
-
-			this.x = scalar;
-			this.y = scalar;
-			this.z = scalar;
-			this.w = scalar;
-
-			return this;
-
-		},
-
-		setX: function ( x ) {
-
-			this.x = x;
-
-			return this;
-
-		},
-
-		setY: function ( y ) {
-
-			this.y = y;
-
-			return this;
-
-		},
-
-		setZ: function ( z ) {
-
-			this.z = z;
-
-			return this;
-
-		},
-
-		setW: function ( w ) {
-
-			this.w = w;
-
-			return this;
-
-		},
-
-		setComponent: function ( index, value ) {
-
-			switch ( index ) {
-
-				case 0: this.x = value; break;
-				case 1: this.y = value; break;
-				case 2: this.z = value; break;
-				case 3: this.w = value; break;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-			return this;
-
-		},
-
-		getComponent: function ( index ) {
-
-			switch ( index ) {
-
-				case 0: return this.x;
-				case 1: return this.y;
-				case 2: return this.z;
-				case 3: return this.w;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.x, this.y, this.z, this.w );
-
-		},
-
-		copy: function ( v ) {
-
-			this.x = v.x;
-			this.y = v.y;
-			this.z = v.z;
-			this.w = ( v.w !== undefined ) ? v.w : 1;
-
-			return this;
-
-		},
-
-		add: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
-				return this.addVectors( v, w );
-
-			}
-
-			this.x += v.x;
-			this.y += v.y;
-			this.z += v.z;
-			this.w += v.w;
-
-			return this;
-
-		},
-
-		addScalar: function ( s ) {
-
-			this.x += s;
-			this.y += s;
-			this.z += s;
-			this.w += s;
-
-			return this;
-
-		},
-
-		addVectors: function ( a, b ) {
-
-			this.x = a.x + b.x;
-			this.y = a.y + b.y;
-			this.z = a.z + b.z;
-			this.w = a.w + b.w;
-
-			return this;
-
-		},
-
-		addScaledVector: function ( v, s ) {
-
-			this.x += v.x * s;
-			this.y += v.y * s;
-			this.z += v.z * s;
-			this.w += v.w * s;
-
-			return this;
-
-		},
-
-		sub: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
-				return this.subVectors( v, w );
-
-			}
-
-			this.x -= v.x;
-			this.y -= v.y;
-			this.z -= v.z;
-			this.w -= v.w;
-
-			return this;
-
-		},
-
-		subScalar: function ( s ) {
-
-			this.x -= s;
-			this.y -= s;
-			this.z -= s;
-			this.w -= s;
-
-			return this;
-
-		},
-
-		subVectors: function ( a, b ) {
-
-			this.x = a.x - b.x;
-			this.y = a.y - b.y;
-			this.z = a.z - b.z;
-			this.w = a.w - b.w;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( scalar ) {
-
-			this.x *= scalar;
-			this.y *= scalar;
-			this.z *= scalar;
-			this.w *= scalar;
-
-			return this;
-
-		},
-
-		applyMatrix4: function ( m ) {
-
-			var x = this.x, y = this.y, z = this.z, w = this.w;
-			var e = m.elements;
-
-			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;
-			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;
-			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;
-			this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;
-
-			return this;
-
-		},
-
-		divideScalar: function ( scalar ) {
-
-			return this.multiplyScalar( 1 / scalar );
-
-		},
-
-		setAxisAngleFromQuaternion: function ( q ) {
-
-			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm
-
-			// q is assumed to be normalized
-
-			this.w = 2 * Math.acos( q.w );
-
-			var s = Math.sqrt( 1 - q.w * q.w );
-
-			if ( s < 0.0001 ) {
-
-				this.x = 1;
-				this.y = 0;
-				this.z = 0;
-
-			} else {
-
-				this.x = q.x / s;
-				this.y = q.y / s;
-				this.z = q.z / s;
-
-			}
-
-			return this;
-
-		},
-
-		setAxisAngleFromRotationMatrix: function ( m ) {
-
-			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm
-
-			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
-			var angle, x, y, z,		// variables for result
-				epsilon = 0.01,		// margin to allow for rounding errors
-				epsilon2 = 0.1,		// margin to distinguish between 0 and 180 degrees
-
-				te = m.elements,
-
-				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
-				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
-				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];
-
-			if ( ( Math.abs( m12 - m21 ) < epsilon ) &&
-			     ( Math.abs( m13 - m31 ) < epsilon ) &&
-			     ( Math.abs( m23 - m32 ) < epsilon ) ) {
-
-				// singularity found
-				// first check for identity matrix which must have +1 for all terms
-				// in leading diagonal and zero in other terms
-
-				if ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&
-				     ( Math.abs( m13 + m31 ) < epsilon2 ) &&
-				     ( Math.abs( m23 + m32 ) < epsilon2 ) &&
-				     ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {
-
-					// this singularity is identity matrix so angle = 0
-
-					this.set( 1, 0, 0, 0 );
-
-					return this; // zero angle, arbitrary axis
-
-				}
-
-				// otherwise this singularity is angle = 180
-
-				angle = Math.PI;
-
-				var xx = ( m11 + 1 ) / 2;
-				var yy = ( m22 + 1 ) / 2;
-				var zz = ( m33 + 1 ) / 2;
-				var xy = ( m12 + m21 ) / 4;
-				var xz = ( m13 + m31 ) / 4;
-				var yz = ( m23 + m32 ) / 4;
-
-				if ( ( xx > yy ) && ( xx > zz ) ) {
-
-					// m11 is the largest diagonal term
-
-					if ( xx < epsilon ) {
-
-						x = 0;
-						y = 0.707106781;
-						z = 0.707106781;
-
-					} else {
-
-						x = Math.sqrt( xx );
-						y = xy / x;
-						z = xz / x;
-
-					}
-
-				} else if ( yy > zz ) {
-
-					// m22 is the largest diagonal term
-
-					if ( yy < epsilon ) {
-
-						x = 0.707106781;
-						y = 0;
-						z = 0.707106781;
-
-					} else {
-
-						y = Math.sqrt( yy );
-						x = xy / y;
-						z = yz / y;
-
-					}
-
-				} else {
-
-					// m33 is the largest diagonal term so base result on this
-
-					if ( zz < epsilon ) {
-
-						x = 0.707106781;
-						y = 0.707106781;
-						z = 0;
-
-					} else {
-
-						z = Math.sqrt( zz );
-						x = xz / z;
-						y = yz / z;
-
-					}
-
-				}
-
-				this.set( x, y, z, angle );
-
-				return this; // return 180 deg rotation
-
-			}
-
-			// as we have reached here there are no singularities so we can handle normally
-
-			var s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +
-			                   ( m13 - m31 ) * ( m13 - m31 ) +
-			                   ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize
-
-			if ( Math.abs( s ) < 0.001 ) s = 1;
-
-			// prevent divide by zero, should not happen if matrix is orthogonal and should be
-			// caught by singularity test above, but I've left it in just in case
-
-			this.x = ( m32 - m23 ) / s;
-			this.y = ( m13 - m31 ) / s;
-			this.z = ( m21 - m12 ) / s;
-			this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );
-
-			return this;
-
-		},
-
-		min: function ( v ) {
-
-			this.x = Math.min( this.x, v.x );
-			this.y = Math.min( this.y, v.y );
-			this.z = Math.min( this.z, v.z );
-			this.w = Math.min( this.w, v.w );
-
-			return this;
-
-		},
-
-		max: function ( v ) {
-
-			this.x = Math.max( this.x, v.x );
-			this.y = Math.max( this.y, v.y );
-			this.z = Math.max( this.z, v.z );
-			this.w = Math.max( this.w, v.w );
-
-			return this;
-
-		},
-
-		clamp: function ( min, max ) {
-
-			// assumes min < max, componentwise
-
-			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
-			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
-			this.z = Math.max( min.z, Math.min( max.z, this.z ) );
-			this.w = Math.max( min.w, Math.min( max.w, this.w ) );
-
-			return this;
-
-		},
-
-		clampScalar: function () {
-
-			var min, max;
-
-			return function clampScalar( minVal, maxVal ) {
-
-				if ( min === undefined ) {
-
-					min = new Vector4();
-					max = new Vector4();
-
-				}
-
-				min.set( minVal, minVal, minVal, minVal );
-				max.set( maxVal, maxVal, maxVal, maxVal );
-
-				return this.clamp( min, max );
-
-			};
-
-		}(),
-
-		clampLength: function ( min, max ) {
-
-			var length = this.length();
-
-			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
-
-		},
-
-		floor: function () {
-
-			this.x = Math.floor( this.x );
-			this.y = Math.floor( this.y );
-			this.z = Math.floor( this.z );
-			this.w = Math.floor( this.w );
-
-			return this;
-
-		},
-
-		ceil: function () {
-
-			this.x = Math.ceil( this.x );
-			this.y = Math.ceil( this.y );
-			this.z = Math.ceil( this.z );
-			this.w = Math.ceil( this.w );
-
-			return this;
-
-		},
-
-		round: function () {
-
-			this.x = Math.round( this.x );
-			this.y = Math.round( this.y );
-			this.z = Math.round( this.z );
-			this.w = Math.round( this.w );
-
-			return this;
-
-		},
-
-		roundToZero: function () {
-
-			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
-			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
-			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
-			this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );
-
-			return this;
-
-		},
-
-		negate: function () {
-
-			this.x = - this.x;
-			this.y = - this.y;
-			this.z = - this.z;
-			this.w = - this.w;
-
-			return this;
-
-		},
-
-		dot: function ( v ) {
-
-			return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;
-
-		},
-
-		lengthSq: function () {
-
-			return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;
-
-		},
-
-		length: function () {
-
-			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );
-
-		},
-
-		manhattanLength: function () {
-
-			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );
-
-		},
-
-		normalize: function () {
-
-			return this.divideScalar( this.length() || 1 );
-
-		},
-
-		setLength: function ( length ) {
-
-			return this.normalize().multiplyScalar( length );
-
-		},
-
-		lerp: function ( v, alpha ) {
-
-			this.x += ( v.x - this.x ) * alpha;
-			this.y += ( v.y - this.y ) * alpha;
-			this.z += ( v.z - this.z ) * alpha;
-			this.w += ( v.w - this.w ) * alpha;
-
-			return this;
-
-		},
-
-		lerpVectors: function ( v1, v2, alpha ) {
-
-			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
-
-		},
-
-		equals: function ( v ) {
-
-			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.x = array[ offset ];
-			this.y = array[ offset + 1 ];
-			this.z = array[ offset + 2 ];
-			this.w = array[ offset + 3 ];
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this.x;
-			array[ offset + 1 ] = this.y;
-			array[ offset + 2 ] = this.z;
-			array[ offset + 3 ] = this.w;
-
-			return array;
-
-		},
-
-		fromBufferAttribute: function ( attribute, index, offset ) {
-
-			if ( offset !== undefined ) {
-
-				console.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' );
-
-			}
-
-			this.x = attribute.getX( index );
-			this.y = attribute.getY( index );
-			this.z = attribute.getZ( index );
-			this.w = attribute.getW( index );
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author szimek / https://github.com/szimek/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author Marius Kintel / https://github.com/kintel
-	 */
-
-	/*
-	 In options, we can specify:
-	 * Texture parameters for an auto-generated target texture
-	 * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
-	*/
-	function WebGLRenderTarget( width, height, options ) {
-
-		this.width = width;
-		this.height = height;
-
-		this.scissor = new Vector4( 0, 0, width, height );
-		this.scissorTest = false;
-
-		this.viewport = new Vector4( 0, 0, width, height );
-
-		options = options || {};
-
-		this.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );
-
-		this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false;
-		this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter;
-
-		this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
-		this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;
-		this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;
-
-	}
-
-	WebGLRenderTarget.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: WebGLRenderTarget,
-
-		isWebGLRenderTarget: true,
-
-		setSize: function ( width, height ) {
-
-			if ( this.width !== width || this.height !== height ) {
-
-				this.width = width;
-				this.height = height;
-
-				this.dispose();
-
-			}
-
-			this.viewport.set( 0, 0, width, height );
-			this.scissor.set( 0, 0, width, height );
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.width = source.width;
-			this.height = source.height;
-
-			this.viewport.copy( source.viewport );
-
-			this.texture = source.texture.clone();
-
-			this.depthBuffer = source.depthBuffer;
-			this.stencilBuffer = source.stencilBuffer;
-			this.depthTexture = source.depthTexture;
-
-			return this;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		}
-
-	} );
-
-	/**
-	 * @author Mugen87 / https://github.com/Mugen87
-	 * @author Matt DesLauriers / @mattdesl
-	 */
-
-	function WebGLMultisampleRenderTarget( width, height, options ) {
-
-		WebGLRenderTarget.call( this, width, height, options );
-
-		this.samples = 4;
-
-	}
-
-	WebGLMultisampleRenderTarget.prototype = Object.assign( Object.create( WebGLRenderTarget.prototype ), {
-
-		constructor: WebGLMultisampleRenderTarget,
-
-		isWebGLMultisampleRenderTarget: true,
-
-		copy: function ( source ) {
-
-			WebGLRenderTarget.prototype.copy.call( this, source );
-
-			this.samples = source.samples;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com
-	 */
-
-	function WebGLRenderTargetCube( width, height, options ) {
-
-		WebGLRenderTarget.call( this, width, height, options );
-
-	}
-
-	WebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype );
-	WebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube;
-
-	WebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true;
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {
-
-		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
-
-		this.image = { data: data, width: width, height: height };
-
-		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
-		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
-
-		this.generateMipmaps = false;
-		this.flipY = false;
-		this.unpackAlignment = 1;
-
-	}
-
-	DataTexture.prototype = Object.create( Texture.prototype );
-	DataTexture.prototype.constructor = DataTexture;
-
-	DataTexture.prototype.isDataTexture = true;
-
-	/**
-	 * @author bhouston / http://clara.io
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Box3( min, max ) {
-
-		this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );
-		this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );
-
-	}
-
-	Object.assign( Box3.prototype, {
-
-		isBox3: true,
-
-		set: function ( min, max ) {
-
-			this.min.copy( min );
-			this.max.copy( max );
-
-			return this;
-
-		},
-
-		setFromArray: function ( array ) {
-
-			var minX = + Infinity;
-			var minY = + Infinity;
-			var minZ = + Infinity;
-
-			var maxX = - Infinity;
-			var maxY = - Infinity;
-			var maxZ = - Infinity;
-
-			for ( var i = 0, l = array.length; i < l; i += 3 ) {
-
-				var x = array[ i ];
-				var y = array[ i + 1 ];
-				var z = array[ i + 2 ];
-
-				if ( x < minX ) minX = x;
-				if ( y < minY ) minY = y;
-				if ( z < minZ ) minZ = z;
-
-				if ( x > maxX ) maxX = x;
-				if ( y > maxY ) maxY = y;
-				if ( z > maxZ ) maxZ = z;
-
-			}
-
-			this.min.set( minX, minY, minZ );
-			this.max.set( maxX, maxY, maxZ );
-
-			return this;
-
-		},
-
-		setFromBufferAttribute: function ( attribute ) {
-
-			var minX = + Infinity;
-			var minY = + Infinity;
-			var minZ = + Infinity;
-
-			var maxX = - Infinity;
-			var maxY = - Infinity;
-			var maxZ = - Infinity;
-
-			for ( var i = 0, l = attribute.count; i < l; i ++ ) {
-
-				var x = attribute.getX( i );
-				var y = attribute.getY( i );
-				var z = attribute.getZ( i );
-
-				if ( x < minX ) minX = x;
-				if ( y < minY ) minY = y;
-				if ( z < minZ ) minZ = z;
-
-				if ( x > maxX ) maxX = x;
-				if ( y > maxY ) maxY = y;
-				if ( z > maxZ ) maxZ = z;
-
-			}
-
-			this.min.set( minX, minY, minZ );
-			this.max.set( maxX, maxY, maxZ );
-
-			return this;
-
-		},
-
-		setFromPoints: function ( points ) {
-
-			this.makeEmpty();
-
-			for ( var i = 0, il = points.length; i < il; i ++ ) {
-
-				this.expandByPoint( points[ i ] );
-
-			}
-
-			return this;
-
-		},
-
-		setFromCenterAndSize: function () {
-
-			var v1 = new Vector3();
-
-			return function setFromCenterAndSize( center, size ) {
-
-				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
-
-				this.min.copy( center ).sub( halfSize );
-				this.max.copy( center ).add( halfSize );
-
-				return this;
-
-			};
-
-		}(),
-
-		setFromObject: function ( object ) {
-
-			this.makeEmpty();
-
-			return this.expandByObject( object );
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( box ) {
-
-			this.min.copy( box.min );
-			this.max.copy( box.max );
-
-			return this;
-
-		},
-
-		makeEmpty: function () {
-
-			this.min.x = this.min.y = this.min.z = + Infinity;
-			this.max.x = this.max.y = this.max.z = - Infinity;
-
-			return this;
-
-		},
-
-		isEmpty: function () {
-
-			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
-
-			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );
-
-		},
-
-		getCenter: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Box3: .getCenter() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return this.isEmpty() ? target.set( 0, 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );
-
-		},
-
-		getSize: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Box3: .getSize() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return this.isEmpty() ? target.set( 0, 0, 0 ) : target.subVectors( this.max, this.min );
-
-		},
-
-		expandByPoint: function ( point ) {
-
-			this.min.min( point );
-			this.max.max( point );
-
-			return this;
-
-		},
-
-		expandByVector: function ( vector ) {
-
-			this.min.sub( vector );
-			this.max.add( vector );
-
-			return this;
-
-		},
-
-		expandByScalar: function ( scalar ) {
-
-			this.min.addScalar( - scalar );
-			this.max.addScalar( scalar );
-
-			return this;
-
-		},
-
-		expandByObject: function () {
-
-			// Computes the world-axis-aligned bounding box of an object (including its children),
-			// accounting for both the object's, and children's, world transforms
-
-			var scope, i, l;
-
-			var v1 = new Vector3();
-
-			function traverse( node ) {
-
-				var geometry = node.geometry;
-
-				if ( geometry !== undefined ) {
-
-					if ( geometry.isGeometry ) {
-
-						var vertices = geometry.vertices;
-
-						for ( i = 0, l = vertices.length; i < l; i ++ ) {
-
-							v1.copy( vertices[ i ] );
-							v1.applyMatrix4( node.matrixWorld );
-
-							scope.expandByPoint( v1 );
-
-						}
-
-					} else if ( geometry.isBufferGeometry ) {
-
-						var attribute = geometry.attributes.position;
-
-						if ( attribute !== undefined ) {
-
-							for ( i = 0, l = attribute.count; i < l; i ++ ) {
-
-								v1.fromBufferAttribute( attribute, i ).applyMatrix4( node.matrixWorld );
-
-								scope.expandByPoint( v1 );
-
-							}
-
-						}
-
-					}
-
-				}
-
-			}
-
-			return function expandByObject( object ) {
-
-				scope = this;
-
-				object.updateMatrixWorld( true );
-
-				object.traverse( traverse );
-
-				return this;
-
-			};
-
-		}(),
-
-		containsPoint: function ( point ) {
-
-			return point.x < this.min.x || point.x > this.max.x ||
-				point.y < this.min.y || point.y > this.max.y ||
-				point.z < this.min.z || point.z > this.max.z ? false : true;
-
-		},
-
-		containsBox: function ( box ) {
-
-			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
-				this.min.y <= box.min.y && box.max.y <= this.max.y &&
-				this.min.z <= box.min.z && box.max.z <= this.max.z;
-
-		},
-
-		getParameter: function ( point, target ) {
-
-			// This can potentially have a divide by zero if the box
-			// has a size dimension of 0.
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Box3: .getParameter() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return target.set(
-				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
-				( point.y - this.min.y ) / ( this.max.y - this.min.y ),
-				( point.z - this.min.z ) / ( this.max.z - this.min.z )
-			);
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			// using 6 splitting planes to rule out intersections.
-			return box.max.x < this.min.x || box.min.x > this.max.x ||
-				box.max.y < this.min.y || box.min.y > this.max.y ||
-				box.max.z < this.min.z || box.min.z > this.max.z ? false : true;
-
-		},
-
-		intersectsSphere: ( function () {
-
-			var closestPoint = new Vector3();
-
-			return function intersectsSphere( sphere ) {
-
-				// Find the point on the AABB closest to the sphere center.
-				this.clampPoint( sphere.center, closestPoint );
-
-				// If that point is inside the sphere, the AABB and sphere intersect.
-				return closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );
-
-			};
-
-		} )(),
-
-		intersectsPlane: function ( plane ) {
-
-			// We compute the minimum and maximum dot product values. If those values
-			// are on the same side (back or front) of the plane, then there is no intersection.
-
-			var min, max;
-
-			if ( plane.normal.x > 0 ) {
-
-				min = plane.normal.x * this.min.x;
-				max = plane.normal.x * this.max.x;
-
-			} else {
-
-				min = plane.normal.x * this.max.x;
-				max = plane.normal.x * this.min.x;
-
-			}
-
-			if ( plane.normal.y > 0 ) {
-
-				min += plane.normal.y * this.min.y;
-				max += plane.normal.y * this.max.y;
-
-			} else {
-
-				min += plane.normal.y * this.max.y;
-				max += plane.normal.y * this.min.y;
-
-			}
-
-			if ( plane.normal.z > 0 ) {
-
-				min += plane.normal.z * this.min.z;
-				max += plane.normal.z * this.max.z;
-
-			} else {
-
-				min += plane.normal.z * this.max.z;
-				max += plane.normal.z * this.min.z;
-
-			}
-
-			return ( min <= - plane.constant && max >= - plane.constant );
-
-		},
-
-		intersectsTriangle: ( function () {
-
-			// triangle centered vertices
-			var v0 = new Vector3();
-			var v1 = new Vector3();
-			var v2 = new Vector3();
-
-			// triangle edge vectors
-			var f0 = new Vector3();
-			var f1 = new Vector3();
-			var f2 = new Vector3();
-
-			var testAxis = new Vector3();
-
-			var center = new Vector3();
-			var extents = new Vector3();
-
-			var triangleNormal = new Vector3();
-
-			function satForAxes( axes ) {
-
-				var i, j;
-
-				for ( i = 0, j = axes.length - 3; i <= j; i += 3 ) {
-
-					testAxis.fromArray( axes, i );
-					// project the aabb onto the seperating axis
-					var r = extents.x * Math.abs( testAxis.x ) + extents.y * Math.abs( testAxis.y ) + extents.z * Math.abs( testAxis.z );
-					// project all 3 vertices of the triangle onto the seperating axis
-					var p0 = v0.dot( testAxis );
-					var p1 = v1.dot( testAxis );
-					var p2 = v2.dot( testAxis );
-					// actual test, basically see if either of the most extreme of the triangle points intersects r
-					if ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) {
-
-						// points of the projected triangle are outside the projected half-length of the aabb
-						// the axis is seperating and we can exit
-						return false;
-
-					}
-
-				}
-
-				return true;
-
-			}
-
-			return function intersectsTriangle( triangle ) {
-
-				if ( this.isEmpty() ) {
-
-					return false;
-
-				}
-
-				// compute box center and extents
-				this.getCenter( center );
-				extents.subVectors( this.max, center );
-
-				// translate triangle to aabb origin
-				v0.subVectors( triangle.a, center );
-				v1.subVectors( triangle.b, center );
-				v2.subVectors( triangle.c, center );
-
-				// compute edge vectors for triangle
-				f0.subVectors( v1, v0 );
-				f1.subVectors( v2, v1 );
-				f2.subVectors( v0, v2 );
-
-				// test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
-				// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
-				// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)
-				var axes = [
-					0, - f0.z, f0.y, 0, - f1.z, f1.y, 0, - f2.z, f2.y,
-					f0.z, 0, - f0.x, f1.z, 0, - f1.x, f2.z, 0, - f2.x,
-					- f0.y, f0.x, 0, - f1.y, f1.x, 0, - f2.y, f2.x, 0
-				];
-				if ( ! satForAxes( axes ) ) {
-
-					return false;
-
-				}
-
-				// test 3 face normals from the aabb
-				axes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ];
-				if ( ! satForAxes( axes ) ) {
-
-					return false;
-
-				}
-
-				// finally testing the face normal of the triangle
-				// use already existing triangle edge vectors here
-				triangleNormal.crossVectors( f0, f1 );
-				axes = [ triangleNormal.x, triangleNormal.y, triangleNormal.z ];
-				return satForAxes( axes );
-
-			};
-
-		} )(),
-
-		clampPoint: function ( point, target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Box3: .clampPoint() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return target.copy( point ).clamp( this.min, this.max );
-
-		},
-
-		distanceToPoint: function () {
-
-			var v1 = new Vector3();
-
-			return function distanceToPoint( point ) {
-
-				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
-				return clampedPoint.sub( point ).length();
-
-			};
-
-		}(),
-
-		getBoundingSphere: function () {
-
-			var v1 = new Vector3();
-
-			return function getBoundingSphere( target ) {
-
-				if ( target === undefined ) {
-
-					console.error( 'THREE.Box3: .getBoundingSphere() target is now required' );
-					//target = new Sphere(); // removed to avoid cyclic dependency
-
-				}
-
-				this.getCenter( target.center );
-
-				target.radius = this.getSize( v1 ).length() * 0.5;
-
-				return target;
-
-			};
-
-		}(),
-
-		intersect: function ( box ) {
-
-			this.min.max( box.min );
-			this.max.min( box.max );
-
-			// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
-			if ( this.isEmpty() ) this.makeEmpty();
-
-			return this;
-
-		},
-
-		union: function ( box ) {
-
-			this.min.min( box.min );
-			this.max.max( box.max );
-
-			return this;
-
-		},
-
-		applyMatrix4: function () {
-
-			var points = [
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3()
-			];
-
-			return function applyMatrix4( matrix ) {
-
-				// transform of empty box is an empty box.
-				if ( this.isEmpty() ) return this;
-
-				// NOTE: I am using a binary pattern to specify all 2^3 combinations below
-				points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000
-				points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001
-				points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010
-				points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011
-				points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100
-				points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101
-				points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110
-				points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 111
-
-				this.setFromPoints( points );
-
-				return this;
-
-			};
-
-		}(),
-
-		translate: function ( offset ) {
-
-			this.min.add( offset );
-			this.max.add( offset );
-
-			return this;
-
-		},
-
-		equals: function ( box ) {
-
-			return box.min.equals( this.min ) && box.max.equals( this.max );
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Sphere( center, radius ) {
-
-		this.center = ( center !== undefined ) ? center : new Vector3();
-		this.radius = ( radius !== undefined ) ? radius : 0;
-
-	}
-
-	Object.assign( Sphere.prototype, {
-
-		set: function ( center, radius ) {
-
-			this.center.copy( center );
-			this.radius = radius;
-
-			return this;
-
-		},
-
-		setFromPoints: function () {
-
-			var box = new Box3();
-
-			return function setFromPoints( points, optionalCenter ) {
-
-				var center = this.center;
-
-				if ( optionalCenter !== undefined ) {
-
-					center.copy( optionalCenter );
-
-				} else {
-
-					box.setFromPoints( points ).getCenter( center );
-
-				}
-
-				var maxRadiusSq = 0;
-
-				for ( var i = 0, il = points.length; i < il; i ++ ) {
-
-					maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );
-
-				}
-
-				this.radius = Math.sqrt( maxRadiusSq );
-
-				return this;
-
-			};
-
-		}(),
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( sphere ) {
-
-			this.center.copy( sphere.center );
-			this.radius = sphere.radius;
-
-			return this;
-
-		},
-
-		empty: function () {
-
-			return ( this.radius <= 0 );
-
-		},
-
-		containsPoint: function ( point ) {
-
-			return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );
-
-		},
-
-		distanceToPoint: function ( point ) {
-
-			return ( point.distanceTo( this.center ) - this.radius );
-
-		},
-
-		intersectsSphere: function ( sphere ) {
-
-			var radiusSum = this.radius + sphere.radius;
-
-			return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			return box.intersectsSphere( this );
-
-		},
-
-		intersectsPlane: function ( plane ) {
-
-			return Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius;
-
-		},
-
-		clampPoint: function ( point, target ) {
-
-			var deltaLengthSq = this.center.distanceToSquared( point );
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Sphere: .clampPoint() target is now required' );
-				target = new Vector3();
-
-			}
-
-			target.copy( point );
-
-			if ( deltaLengthSq > ( this.radius * this.radius ) ) {
-
-				target.sub( this.center ).normalize();
-				target.multiplyScalar( this.radius ).add( this.center );
-
-			}
-
-			return target;
-
-		},
-
-		getBoundingBox: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Sphere: .getBoundingBox() target is now required' );
-				target = new Box3();
-
-			}
-
-			target.set( this.center, this.center );
-			target.expandByScalar( this.radius );
-
-			return target;
-
-		},
-
-		applyMatrix4: function ( matrix ) {
-
-			this.center.applyMatrix4( matrix );
-			this.radius = this.radius * matrix.getMaxScaleOnAxis();
-
-			return this;
-
-		},
-
-		translate: function ( offset ) {
-
-			this.center.add( offset );
-
-			return this;
-
-		},
-
-		equals: function ( sphere ) {
-
-			return sphere.center.equals( this.center ) && ( sphere.radius === this.radius );
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Plane( normal, constant ) {
-
-		// normal is assumed to be normalized
-
-		this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );
-		this.constant = ( constant !== undefined ) ? constant : 0;
-
-	}
-
-	Object.assign( Plane.prototype, {
-
-		set: function ( normal, constant ) {
-
-			this.normal.copy( normal );
-			this.constant = constant;
-
-			return this;
-
-		},
-
-		setComponents: function ( x, y, z, w ) {
-
-			this.normal.set( x, y, z );
-			this.constant = w;
-
-			return this;
-
-		},
-
-		setFromNormalAndCoplanarPoint: function ( normal, point ) {
-
-			this.normal.copy( normal );
-			this.constant = - point.dot( this.normal );
-
-			return this;
-
-		},
-
-		setFromCoplanarPoints: function () {
-
-			var v1 = new Vector3();
-			var v2 = new Vector3();
-
-			return function setFromCoplanarPoints( a, b, c ) {
-
-				var normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();
-
-				// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?
-
-				this.setFromNormalAndCoplanarPoint( normal, a );
-
-				return this;
-
-			};
-
-		}(),
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( plane ) {
-
-			this.normal.copy( plane.normal );
-			this.constant = plane.constant;
-
-			return this;
-
-		},
-
-		normalize: function () {
-
-			// Note: will lead to a divide by zero if the plane is invalid.
-
-			var inverseNormalLength = 1.0 / this.normal.length();
-			this.normal.multiplyScalar( inverseNormalLength );
-			this.constant *= inverseNormalLength;
-
-			return this;
-
-		},
-
-		negate: function () {
-
-			this.constant *= - 1;
-			this.normal.negate();
-
-			return this;
-
-		},
-
-		distanceToPoint: function ( point ) {
-
-			return this.normal.dot( point ) + this.constant;
-
-		},
-
-		distanceToSphere: function ( sphere ) {
-
-			return this.distanceToPoint( sphere.center ) - sphere.radius;
-
-		},
-
-		projectPoint: function ( point, target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Plane: .projectPoint() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return target.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point );
-
-		},
-
-		intersectLine: function () {
-
-			var v1 = new Vector3();
-
-			return function intersectLine( line, target ) {
-
-				if ( target === undefined ) {
-
-					console.warn( 'THREE.Plane: .intersectLine() target is now required' );
-					target = new Vector3();
-
-				}
-
-				var direction = line.delta( v1 );
-
-				var denominator = this.normal.dot( direction );
-
-				if ( denominator === 0 ) {
-
-					// line is coplanar, return origin
-					if ( this.distanceToPoint( line.start ) === 0 ) {
-
-						return target.copy( line.start );
-
-					}
-
-					// Unsure if this is the correct method to handle this case.
-					return undefined;
-
-				}
-
-				var t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;
-
-				if ( t < 0 || t > 1 ) {
-
-					return undefined;
-
-				}
-
-				return target.copy( direction ).multiplyScalar( t ).add( line.start );
-
-			};
-
-		}(),
-
-		intersectsLine: function ( line ) {
-
-			// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.
-
-			var startSign = this.distanceToPoint( line.start );
-			var endSign = this.distanceToPoint( line.end );
-
-			return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			return box.intersectsPlane( this );
-
-		},
-
-		intersectsSphere: function ( sphere ) {
-
-			return sphere.intersectsPlane( this );
-
-		},
-
-		coplanarPoint: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Plane: .coplanarPoint() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return target.copy( this.normal ).multiplyScalar( - this.constant );
-
-		},
-
-		applyMatrix4: function () {
-
-			var v1 = new Vector3();
-			var m1 = new Matrix3();
-
-			return function applyMatrix4( matrix, optionalNormalMatrix ) {
-
-				var normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );
-
-				var referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix );
-
-				var normal = this.normal.applyMatrix3( normalMatrix ).normalize();
-
-				this.constant = - referencePoint.dot( normal );
-
-				return this;
-
-			};
-
-		}(),
-
-		translate: function ( offset ) {
-
-			this.constant -= offset.dot( this.normal );
-
-			return this;
-
-		},
-
-		equals: function ( plane ) {
-
-			return plane.normal.equals( this.normal ) && ( plane.constant === this.constant );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Frustum( p0, p1, p2, p3, p4, p5 ) {
-
-		this.planes = [
-
-			( p0 !== undefined ) ? p0 : new Plane(),
-			( p1 !== undefined ) ? p1 : new Plane(),
-			( p2 !== undefined ) ? p2 : new Plane(),
-			( p3 !== undefined ) ? p3 : new Plane(),
-			( p4 !== undefined ) ? p4 : new Plane(),
-			( p5 !== undefined ) ? p5 : new Plane()
-
-		];
-
-	}
-
-	Object.assign( Frustum.prototype, {
-
-		set: function ( p0, p1, p2, p3, p4, p5 ) {
-
-			var planes = this.planes;
-
-			planes[ 0 ].copy( p0 );
-			planes[ 1 ].copy( p1 );
-			planes[ 2 ].copy( p2 );
-			planes[ 3 ].copy( p3 );
-			planes[ 4 ].copy( p4 );
-			planes[ 5 ].copy( p5 );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( frustum ) {
-
-			var planes = this.planes;
-
-			for ( var i = 0; i < 6; i ++ ) {
-
-				planes[ i ].copy( frustum.planes[ i ] );
-
-			}
-
-			return this;
-
-		},
-
-		setFromMatrix: function ( m ) {
-
-			var planes = this.planes;
-			var me = m.elements;
-			var me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];
-			var me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];
-			var me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];
-			var me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];
-
-			planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();
-			planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();
-			planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();
-			planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();
-			planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();
-			planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();
-
-			return this;
-
-		},
-
-		intersectsObject: function () {
-
-			var sphere = new Sphere();
-
-			return function intersectsObject( object ) {
-
-				var geometry = object.geometry;
-
-				if ( geometry.boundingSphere === null )
-					geometry.computeBoundingSphere();
-
-				sphere.copy( geometry.boundingSphere )
-					.applyMatrix4( object.matrixWorld );
-
-				return this.intersectsSphere( sphere );
-
-			};
-
-		}(),
-
-		intersectsSprite: function () {
-
-			var sphere = new Sphere();
-
-			return function intersectsSprite( sprite ) {
-
-				sphere.center.set( 0, 0, 0 );
-				sphere.radius = 0.7071067811865476;
-				sphere.applyMatrix4( sprite.matrixWorld );
-
-				return this.intersectsSphere( sphere );
-
-			};
-
-		}(),
-
-		intersectsSphere: function ( sphere ) {
-
-			var planes = this.planes;
-			var center = sphere.center;
-			var negRadius = - sphere.radius;
-
-			for ( var i = 0; i < 6; i ++ ) {
-
-				var distance = planes[ i ].distanceToPoint( center );
-
-				if ( distance < negRadius ) {
-
-					return false;
-
-				}
-
-			}
-
-			return true;
-
-		},
-
-		intersectsBox: function () {
-
-			var p = new Vector3();
-
-			return function intersectsBox( box ) {
-
-				var planes = this.planes;
-
-				for ( var i = 0; i < 6; i ++ ) {
-
-					var plane = planes[ i ];
-
-					// corner at max distance
-
-					p.x = plane.normal.x > 0 ? box.max.x : box.min.x;
-					p.y = plane.normal.y > 0 ? box.max.y : box.min.y;
-					p.z = plane.normal.z > 0 ? box.max.z : box.min.z;
-
-					if ( plane.distanceToPoint( p ) < 0 ) {
-
-						return false;
-
-					}
-
-				}
-
-				return true;
-
-			};
-
-		}(),
-
-		containsPoint: function ( point ) {
-
-			var planes = this.planes;
-
-			for ( var i = 0; i < 6; i ++ ) {
-
-				if ( planes[ i ].distanceToPoint( point ) < 0 ) {
-
-					return false;
-
-				}
-
-			}
-
-			return true;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author supereggbert / http://www.paulbrunt.co.uk/
-	 * @author philogb / http://blog.thejit.org/
-	 * @author jordi_ros / http://plattsoft.com
-	 * @author D1plo1d / http://github.com/D1plo1d
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author timknip / http://www.floorplanner.com/
-	 * @author bhouston / http://clara.io
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Matrix4() {
-
-		this.elements = [
-
-			1, 0, 0, 0,
-			0, 1, 0, 0,
-			0, 0, 1, 0,
-			0, 0, 0, 1
-
-		];
-
-		if ( arguments.length > 0 ) {
-
-			console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );
-
-		}
-
-	}
-
-	Object.assign( Matrix4.prototype, {
-
-		isMatrix4: true,
-
-		set: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {
-
-			var te = this.elements;
-
-			te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;
-			te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;
-			te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;
-			te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;
-
-			return this;
-
-		},
-
-		identity: function () {
-
-			this.set(
-
-				1, 0, 0, 0,
-				0, 1, 0, 0,
-				0, 0, 1, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new Matrix4().fromArray( this.elements );
-
-		},
-
-		copy: function ( m ) {
-
-			var te = this.elements;
-			var me = m.elements;
-
-			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];
-			te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];
-			te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];
-			te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];
-
-			return this;
-
-		},
-
-		copyPosition: function ( m ) {
-
-			var te = this.elements, me = m.elements;
-
-			te[ 12 ] = me[ 12 ];
-			te[ 13 ] = me[ 13 ];
-			te[ 14 ] = me[ 14 ];
-
-			return this;
-
-		},
-
-		extractBasis: function ( xAxis, yAxis, zAxis ) {
-
-			xAxis.setFromMatrixColumn( this, 0 );
-			yAxis.setFromMatrixColumn( this, 1 );
-			zAxis.setFromMatrixColumn( this, 2 );
-
-			return this;
-
-		},
-
-		makeBasis: function ( xAxis, yAxis, zAxis ) {
-
-			this.set(
-				xAxis.x, yAxis.x, zAxis.x, 0,
-				xAxis.y, yAxis.y, zAxis.y, 0,
-				xAxis.z, yAxis.z, zAxis.z, 0,
-				0, 0, 0, 1
-			);
-
-			return this;
-
-		},
-
-		extractRotation: function () {
-
-			var v1 = new Vector3();
-
-			return function extractRotation( m ) {
-
-				// this method does not support reflection matrices
-
-				var te = this.elements;
-				var me = m.elements;
-
-				var scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();
-				var scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();
-				var scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();
-
-				te[ 0 ] = me[ 0 ] * scaleX;
-				te[ 1 ] = me[ 1 ] * scaleX;
-				te[ 2 ] = me[ 2 ] * scaleX;
-				te[ 3 ] = 0;
-
-				te[ 4 ] = me[ 4 ] * scaleY;
-				te[ 5 ] = me[ 5 ] * scaleY;
-				te[ 6 ] = me[ 6 ] * scaleY;
-				te[ 7 ] = 0;
-
-				te[ 8 ] = me[ 8 ] * scaleZ;
-				te[ 9 ] = me[ 9 ] * scaleZ;
-				te[ 10 ] = me[ 10 ] * scaleZ;
-				te[ 11 ] = 0;
-
-				te[ 12 ] = 0;
-				te[ 13 ] = 0;
-				te[ 14 ] = 0;
-				te[ 15 ] = 1;
-
-				return this;
-
-			};
-
-		}(),
-
-		makeRotationFromEuler: function ( euler ) {
-
-			if ( ! ( euler && euler.isEuler ) ) {
-
-				console.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );
-
-			}
-
-			var te = this.elements;
-
-			var x = euler.x, y = euler.y, z = euler.z;
-			var a = Math.cos( x ), b = Math.sin( x );
-			var c = Math.cos( y ), d = Math.sin( y );
-			var e = Math.cos( z ), f = Math.sin( z );
-
-			if ( euler.order === 'XYZ' ) {
-
-				var ae = a * e, af = a * f, be = b * e, bf = b * f;
-
-				te[ 0 ] = c * e;
-				te[ 4 ] = - c * f;
-				te[ 8 ] = d;
-
-				te[ 1 ] = af + be * d;
-				te[ 5 ] = ae - bf * d;
-				te[ 9 ] = - b * c;
-
-				te[ 2 ] = bf - ae * d;
-				te[ 6 ] = be + af * d;
-				te[ 10 ] = a * c;
-
-			} else if ( euler.order === 'YXZ' ) {
-
-				var ce = c * e, cf = c * f, de = d * e, df = d * f;
-
-				te[ 0 ] = ce + df * b;
-				te[ 4 ] = de * b - cf;
-				te[ 8 ] = a * d;
-
-				te[ 1 ] = a * f;
-				te[ 5 ] = a * e;
-				te[ 9 ] = - b;
-
-				te[ 2 ] = cf * b - de;
-				te[ 6 ] = df + ce * b;
-				te[ 10 ] = a * c;
-
-			} else if ( euler.order === 'ZXY' ) {
-
-				var ce = c * e, cf = c * f, de = d * e, df = d * f;
-
-				te[ 0 ] = ce - df * b;
-				te[ 4 ] = - a * f;
-				te[ 8 ] = de + cf * b;
-
-				te[ 1 ] = cf + de * b;
-				te[ 5 ] = a * e;
-				te[ 9 ] = df - ce * b;
-
-				te[ 2 ] = - a * d;
-				te[ 6 ] = b;
-				te[ 10 ] = a * c;
-
-			} else if ( euler.order === 'ZYX' ) {
-
-				var ae = a * e, af = a * f, be = b * e, bf = b * f;
-
-				te[ 0 ] = c * e;
-				te[ 4 ] = be * d - af;
-				te[ 8 ] = ae * d + bf;
-
-				te[ 1 ] = c * f;
-				te[ 5 ] = bf * d + ae;
-				te[ 9 ] = af * d - be;
-
-				te[ 2 ] = - d;
-				te[ 6 ] = b * c;
-				te[ 10 ] = a * c;
-
-			} else if ( euler.order === 'YZX' ) {
-
-				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;
-
-				te[ 0 ] = c * e;
-				te[ 4 ] = bd - ac * f;
-				te[ 8 ] = bc * f + ad;
-
-				te[ 1 ] = f;
-				te[ 5 ] = a * e;
-				te[ 9 ] = - b * e;
-
-				te[ 2 ] = - d * e;
-				te[ 6 ] = ad * f + bc;
-				te[ 10 ] = ac - bd * f;
-
-			} else if ( euler.order === 'XZY' ) {
-
-				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;
-
-				te[ 0 ] = c * e;
-				te[ 4 ] = - f;
-				te[ 8 ] = d * e;
-
-				te[ 1 ] = ac * f + bd;
-				te[ 5 ] = a * e;
-				te[ 9 ] = ad * f - bc;
-
-				te[ 2 ] = bc * f - ad;
-				te[ 6 ] = b * e;
-				te[ 10 ] = bd * f + ac;
-
-			}
-
-			// bottom row
-			te[ 3 ] = 0;
-			te[ 7 ] = 0;
-			te[ 11 ] = 0;
-
-			// last column
-			te[ 12 ] = 0;
-			te[ 13 ] = 0;
-			te[ 14 ] = 0;
-			te[ 15 ] = 1;
-
-			return this;
-
-		},
-
-		makeRotationFromQuaternion: function () {
-
-			var zero = new Vector3( 0, 0, 0 );
-			var one = new Vector3( 1, 1, 1 );
-
-			return function makeRotationFromQuaternion( q ) {
-
-				return this.compose( zero, q, one );
-
-			};
-
-		}(),
-
-		lookAt: function () {
-
-			var x = new Vector3();
-			var y = new Vector3();
-			var z = new Vector3();
-
-			return function lookAt( eye, target, up ) {
-
-				var te = this.elements;
-
-				z.subVectors( eye, target );
-
-				if ( z.lengthSq() === 0 ) {
-
-					// eye and target are in the same position
-
-					z.z = 1;
-
-				}
-
-				z.normalize();
-				x.crossVectors( up, z );
-
-				if ( x.lengthSq() === 0 ) {
-
-					// up and z are parallel
-
-					if ( Math.abs( up.z ) === 1 ) {
-
-						z.x += 0.0001;
-
-					} else {
-
-						z.z += 0.0001;
-
-					}
-
-					z.normalize();
-					x.crossVectors( up, z );
-
-				}
-
-				x.normalize();
-				y.crossVectors( z, x );
-
-				te[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;
-				te[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;
-				te[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;
-
-				return this;
-
-			};
-
-		}(),
-
-		multiply: function ( m, n ) {
-
-			if ( n !== undefined ) {
-
-				console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );
-				return this.multiplyMatrices( m, n );
-
-			}
-
-			return this.multiplyMatrices( this, m );
-
-		},
-
-		premultiply: function ( m ) {
-
-			return this.multiplyMatrices( m, this );
-
-		},
-
-		multiplyMatrices: function ( a, b ) {
-
-			var ae = a.elements;
-			var be = b.elements;
-			var te = this.elements;
-
-			var a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];
-			var a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];
-			var a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];
-			var a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];
-
-			var b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];
-			var b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];
-			var b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];
-			var b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];
-
-			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
-			te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
-			te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
-			te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;
-
-			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
-			te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
-			te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
-			te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;
-
-			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
-			te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
-			te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
-			te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;
-
-			te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
-			te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
-			te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
-			te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( s ) {
-
-			var te = this.elements;
-
-			te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;
-			te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;
-			te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;
-			te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;
-
-			return this;
-
-		},
-
-		applyToBufferAttribute: function () {
-
-			var v1 = new Vector3();
-
-			return function applyToBufferAttribute( attribute ) {
-
-				for ( var i = 0, l = attribute.count; i < l; i ++ ) {
-
-					v1.x = attribute.getX( i );
-					v1.y = attribute.getY( i );
-					v1.z = attribute.getZ( i );
-
-					v1.applyMatrix4( this );
-
-					attribute.setXYZ( i, v1.x, v1.y, v1.z );
-
-				}
-
-				return attribute;
-
-			};
-
-		}(),
-
-		determinant: function () {
-
-			var te = this.elements;
-
-			var n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];
-			var n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];
-			var n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];
-			var n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];
-
-			//TODO: make this more efficient
-			//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )
-
-			return (
-				n41 * (
-					+ n14 * n23 * n32
-					 - n13 * n24 * n32
-					 - n14 * n22 * n33
-					 + n12 * n24 * n33
-					 + n13 * n22 * n34
-					 - n12 * n23 * n34
-				) +
-				n42 * (
-					+ n11 * n23 * n34
-					 - n11 * n24 * n33
-					 + n14 * n21 * n33
-					 - n13 * n21 * n34
-					 + n13 * n24 * n31
-					 - n14 * n23 * n31
-				) +
-				n43 * (
-					+ n11 * n24 * n32
-					 - n11 * n22 * n34
-					 - n14 * n21 * n32
-					 + n12 * n21 * n34
-					 + n14 * n22 * n31
-					 - n12 * n24 * n31
-				) +
-				n44 * (
-					- n13 * n22 * n31
-					 - n11 * n23 * n32
-					 + n11 * n22 * n33
-					 + n13 * n21 * n32
-					 - n12 * n21 * n33
-					 + n12 * n23 * n31
-				)
-
-			);
-
-		},
-
-		transpose: function () {
-
-			var te = this.elements;
-			var tmp;
-
-			tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;
-			tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;
-			tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;
-
-			tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;
-			tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;
-			tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;
-
-			return this;
-
-		},
-
-		setPosition: function ( x, y, z ) {
-
-			var te = this.elements;
-
-			if ( x.isVector3 ) {
-
-				te[ 12 ] = x.x;
-				te[ 13 ] = x.y;
-				te[ 14 ] = x.z;
-
-			} else {
-
-				te[ 12 ] = x;
-				te[ 13 ] = y;
-				te[ 14 ] = z;
-
-			}
-
-			return this;
-
-		},
-
-		getInverse: function ( m, throwOnDegenerate ) {
-
-			// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
-			var te = this.elements,
-				me = m.elements,
-
-				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],
-				n12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],
-				n13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],
-				n14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],
-
-				t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
-				t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
-				t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
-				t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;
-
-			var det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;
-
-			if ( det === 0 ) {
-
-				var msg = "THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0";
-
-				if ( throwOnDegenerate === true ) {
-
-					throw new Error( msg );
-
-				} else {
-
-					console.warn( msg );
-
-				}
-
-				return this.identity();
-
-			}
-
-			var detInv = 1 / det;
-
-			te[ 0 ] = t11 * detInv;
-			te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;
-			te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;
-			te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;
-
-			te[ 4 ] = t12 * detInv;
-			te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;
-			te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;
-			te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;
-
-			te[ 8 ] = t13 * detInv;
-			te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;
-			te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;
-			te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;
-
-			te[ 12 ] = t14 * detInv;
-			te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;
-			te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;
-			te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;
-
-			return this;
-
-		},
-
-		scale: function ( v ) {
-
-			var te = this.elements;
-			var x = v.x, y = v.y, z = v.z;
-
-			te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;
-			te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;
-			te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;
-			te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;
-
-			return this;
-
-		},
-
-		getMaxScaleOnAxis: function () {
-
-			var te = this.elements;
-
-			var scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];
-			var scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];
-			var scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];
-
-			return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );
-
-		},
-
-		makeTranslation: function ( x, y, z ) {
-
-			this.set(
-
-				1, 0, 0, x,
-				0, 1, 0, y,
-				0, 0, 1, z,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeRotationX: function ( theta ) {
-
-			var c = Math.cos( theta ), s = Math.sin( theta );
-
-			this.set(
-
-				1, 0, 0, 0,
-				0, c, - s, 0,
-				0, s, c, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeRotationY: function ( theta ) {
-
-			var c = Math.cos( theta ), s = Math.sin( theta );
-
-			this.set(
-
-				 c, 0, s, 0,
-				 0, 1, 0, 0,
-				- s, 0, c, 0,
-				 0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeRotationZ: function ( theta ) {
-
-			var c = Math.cos( theta ), s = Math.sin( theta );
-
-			this.set(
-
-				c, - s, 0, 0,
-				s, c, 0, 0,
-				0, 0, 1, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeRotationAxis: function ( axis, angle ) {
-
-			// Based on http://www.gamedev.net/reference/articles/article1199.asp
-
-			var c = Math.cos( angle );
-			var s = Math.sin( angle );
-			var t = 1 - c;
-			var x = axis.x, y = axis.y, z = axis.z;
-			var tx = t * x, ty = t * y;
-
-			this.set(
-
-				tx * x + c, tx * y - s * z, tx * z + s * y, 0,
-				tx * y + s * z, ty * y + c, ty * z - s * x, 0,
-				tx * z - s * y, ty * z + s * x, t * z * z + c, 0,
-				0, 0, 0, 1
-
-			);
-
-			 return this;
-
-		},
-
-		makeScale: function ( x, y, z ) {
-
-			this.set(
-
-				x, 0, 0, 0,
-				0, y, 0, 0,
-				0, 0, z, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeShear: function ( x, y, z ) {
-
-			this.set(
-
-				1, y, z, 0,
-				x, 1, z, 0,
-				x, y, 1, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		compose: function ( position, quaternion, scale ) {
-
-			var te = this.elements;
-
-			var x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w;
-			var x2 = x + x,	y2 = y + y, z2 = z + z;
-			var xx = x * x2, xy = x * y2, xz = x * z2;
-			var yy = y * y2, yz = y * z2, zz = z * z2;
-			var wx = w * x2, wy = w * y2, wz = w * z2;
-
-			var sx = scale.x, sy = scale.y, sz = scale.z;
-
-			te[ 0 ] = ( 1 - ( yy + zz ) ) * sx;
-			te[ 1 ] = ( xy + wz ) * sx;
-			te[ 2 ] = ( xz - wy ) * sx;
-			te[ 3 ] = 0;
-
-			te[ 4 ] = ( xy - wz ) * sy;
-			te[ 5 ] = ( 1 - ( xx + zz ) ) * sy;
-			te[ 6 ] = ( yz + wx ) * sy;
-			te[ 7 ] = 0;
-
-			te[ 8 ] = ( xz + wy ) * sz;
-			te[ 9 ] = ( yz - wx ) * sz;
-			te[ 10 ] = ( 1 - ( xx + yy ) ) * sz;
-			te[ 11 ] = 0;
-
-			te[ 12 ] = position.x;
-			te[ 13 ] = position.y;
-			te[ 14 ] = position.z;
-			te[ 15 ] = 1;
-
-			return this;
-
-		},
-
-		decompose: function () {
-
-			var vector = new Vector3();
-			var matrix = new Matrix4();
-
-			return function decompose( position, quaternion, scale ) {
-
-				var te = this.elements;
-
-				var sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();
-				var sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();
-				var sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();
-
-				// if determine is negative, we need to invert one scale
-				var det = this.determinant();
-				if ( det < 0 ) sx = - sx;
-
-				position.x = te[ 12 ];
-				position.y = te[ 13 ];
-				position.z = te[ 14 ];
-
-				// scale the rotation part
-				matrix.copy( this );
-
-				var invSX = 1 / sx;
-				var invSY = 1 / sy;
-				var invSZ = 1 / sz;
-
-				matrix.elements[ 0 ] *= invSX;
-				matrix.elements[ 1 ] *= invSX;
-				matrix.elements[ 2 ] *= invSX;
-
-				matrix.elements[ 4 ] *= invSY;
-				matrix.elements[ 5 ] *= invSY;
-				matrix.elements[ 6 ] *= invSY;
-
-				matrix.elements[ 8 ] *= invSZ;
-				matrix.elements[ 9 ] *= invSZ;
-				matrix.elements[ 10 ] *= invSZ;
-
-				quaternion.setFromRotationMatrix( matrix );
-
-				scale.x = sx;
-				scale.y = sy;
-				scale.z = sz;
-
-				return this;
-
-			};
-
-		}(),
-
-		makePerspective: function ( left, right, top, bottom, near, far ) {
-
-			if ( far === undefined ) {
-
-				console.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' );
-
-			}
-
-			var te = this.elements;
-			var x = 2 * near / ( right - left );
-			var y = 2 * near / ( top - bottom );
-
-			var a = ( right + left ) / ( right - left );
-			var b = ( top + bottom ) / ( top - bottom );
-			var c = - ( far + near ) / ( far - near );
-			var d = - 2 * far * near / ( far - near );
-
-			te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;
-			te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;
-			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;
-			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;
-
-			return this;
-
-		},
-
-		makeOrthographic: function ( left, right, top, bottom, near, far ) {
-
-			var te = this.elements;
-			var w = 1.0 / ( right - left );
-			var h = 1.0 / ( top - bottom );
-			var p = 1.0 / ( far - near );
-
-			var x = ( right + left ) * w;
-			var y = ( top + bottom ) * h;
-			var z = ( far + near ) * p;
-
-			te[ 0 ] = 2 * w;	te[ 4 ] = 0;	te[ 8 ] = 0;	te[ 12 ] = - x;
-			te[ 1 ] = 0;	te[ 5 ] = 2 * h;	te[ 9 ] = 0;	te[ 13 ] = - y;
-			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 * p;	te[ 14 ] = - z;
-			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;	te[ 15 ] = 1;
-
-			return this;
-
-		},
-
-		equals: function ( matrix ) {
-
-			var te = this.elements;
-			var me = matrix.elements;
-
-			for ( var i = 0; i < 16; i ++ ) {
-
-				if ( te[ i ] !== me[ i ] ) return false;
-
-			}
-
-			return true;
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			for ( var i = 0; i < 16; i ++ ) {
-
-				this.elements[ i ] = array[ i + offset ];
-
-			}
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			var te = this.elements;
-
-			array[ offset ] = te[ 0 ];
-			array[ offset + 1 ] = te[ 1 ];
-			array[ offset + 2 ] = te[ 2 ];
-			array[ offset + 3 ] = te[ 3 ];
-
-			array[ offset + 4 ] = te[ 4 ];
-			array[ offset + 5 ] = te[ 5 ];
-			array[ offset + 6 ] = te[ 6 ];
-			array[ offset + 7 ] = te[ 7 ];
-
-			array[ offset + 8 ] = te[ 8 ];
-			array[ offset + 9 ] = te[ 9 ];
-			array[ offset + 10 ] = te[ 10 ];
-			array[ offset + 11 ] = te[ 11 ];
-
-			array[ offset + 12 ] = te[ 12 ];
-			array[ offset + 13 ] = te[ 13 ];
-			array[ offset + 14 ] = te[ 14 ];
-			array[ offset + 15 ] = te[ 15 ];
-
-			return array;
-
-		}
-
-	} );
-
-	var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif";
-
-	var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";
-
-	var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif";
-
-	var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif";
-
-	var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";
-
-	var begin_vertex = "vec3 transformed = vec3( position );";
-
-	var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif";
-
-	var bsdfs = "vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE  = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS  = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}";
-
-	var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tfDet *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif";
-
-	var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\tif ( clipped ) discard;\n\t#endif\n#endif";
-
-	var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\t#if ! defined( PHYSICAL ) && ! defined( PHONG ) && ! defined( MATCAP )\n\t\tvarying vec3 vViewPosition;\n\t#endif\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif";
-
-	var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG ) && ! defined( MATCAP )\n\tvarying vec3 vViewPosition;\n#endif";
-
-	var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG ) && ! defined( MATCAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif";
-
-	var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif";
-
-	var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";
-
-	var color_pars_vertex = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";
-
-	var color_vertex = "#ifdef USE_COLOR\n\tvColor.xyz = color.xyz;\n#endif";
-
-	var common = "#define PI 3.14159265359\n#define PI2 6.28318530718\n#define PI_HALF 1.5707963267949\n#define RECIPROCAL_PI 0.31830988618\n#define RECIPROCAL_PI2 0.15915494\n#define LOG2 1.442695\n#define EPSILON 1e-6\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}";
-
-	var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n#define cubeUV_textureSize (1024.0)\nint getFaceFromDirection(vec3 direction) {\n\tvec3 absDirection = abs(direction);\n\tint face = -1;\n\tif( absDirection.x > absDirection.z ) {\n\t\tif(absDirection.x > absDirection.y )\n\t\t\tface = direction.x > 0.0 ? 0 : 3;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\telse {\n\t\tif(absDirection.z > absDirection.y )\n\t\t\tface = direction.z > 0.0 ? 2 : 5;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\treturn face;\n}\n#define cubeUV_maxLods1  (log2(cubeUV_textureSize*0.25) - 1.0)\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\n\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\n\tfloat dxRoughness = dFdx(roughness);\n\tfloat dyRoughness = dFdy(roughness);\n\tvec3 dx = dFdx( vec * scale * dxRoughness );\n\tvec3 dy = dFdy( vec * scale * dyRoughness );\n\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\n\td = clamp(d, 1.0, cubeUV_rangeClamp);\n\tfloat mipLevel = 0.5 * log2(d);\n\treturn vec2(floor(mipLevel), fract(mipLevel));\n}\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\n\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\n\tfloat a = 16.0 * cubeUV_rcpTextureSize;\n\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\n\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\n\tfloat powScale = exp2_packed.x * exp2_packed.y;\n\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\n\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\n\tbool bRes = mipLevel == 0.0;\n\tscale =  bRes && (scale < a) ? a : scale;\n\tvec3 r;\n\tvec2 offset;\n\tint face = getFaceFromDirection(direction);\n\tfloat rcpPowScale = 1.0 / powScale;\n\tif( face == 0) {\n\t\tr = vec3(direction.x, -direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 1) {\n\t\tr = vec3(direction.y, direction.x, direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 2) {\n\t\tr = vec3(direction.z, direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 3) {\n\t\tr = vec3(direction.x, direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse if( face == 4) {\n\t\tr = vec3(direction.y, direction.x, -direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse {\n\t\tr = vec3(direction.z, -direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\tr = normalize(r);\n\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\n\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\n\tvec2 base = offset + vec2( texelOffset );\n\treturn base + s * ( scale - 2.0 * texelOffset );\n}\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\nvec4 textureCubeUV( sampler2D envMap, vec3 reflectedDirection, float roughness ) {\n\tfloat roughnessVal = roughness* cubeUV_maxLods3;\n\tfloat r1 = floor(roughnessVal);\n\tfloat r2 = r1 + 1.0;\n\tfloat t = fract(roughnessVal);\n\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\n\tfloat s = mipInfo.y;\n\tfloat level0 = mipInfo.x;\n\tfloat level1 = level0 + 1.0;\n\tlevel1 = level1 > 5.0 ? 5.0 : level1;\n\tlevel0 += min( floor( s + 0.5 ), 5.0 );\n\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\n\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\n\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\n\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\n\tvec4 result = mix(color10, color20, t);\n\treturn vec4(result.rgb, 1.0);\n}\n#endif";
-
-	var defaultnormal_vertex = "vec3 transformedNormal = normalMatrix * objectNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = normalMatrix * objectTangent;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif";
-
-	var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif";
-
-	var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\n#endif";
-
-	var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif";
-
-	var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif";
-
-	var encodings_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );";
-
-	var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = min( floor( D ) / 255.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value )  {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}";
-
-	var envmap_fragment = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\tvec2 sampleUV;\n\t\treflectVec = normalize( reflectVec );\n\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\tvec4 envColor = texture2D( envMap, sampleUV );\n\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\treflectVec = normalize( reflectVec );\n\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\n\t\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\tenvColor = envMapTexelToLinear( envColor );\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif";
-
-	var envmap_pars_fragment = "#if defined( USE_ENVMAP ) || defined( PHYSICAL )\n\tuniform float reflectivity;\n\tuniform float envMapIntensity;\n#endif\n#ifdef USE_ENVMAP\n\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\n\t\tvarying vec3 vWorldPosition;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif";
-
-	var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif";
-
-	var envmap_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif";
-
-	var fog_vertex = "#ifdef USE_FOG\n\tfogDepth = -mvPosition.z;\n#endif";
-
-	var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif";
-
-	var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif";
-
-	var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif";
-
-	var gradientmap_pars_fragment = "#ifdef TOON\n\tuniform sampler2D gradientMap;\n\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\t\tfloat dotNL = dot( normal, lightDirection );\n\t\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t\t#ifdef USE_GRADIENTMAP\n\t\t\treturn texture2D( gradientMap, coord ).rgb;\n\t\t#else\n\t\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t\t#endif\n\t}\n#endif";
-
-	var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n#endif";
-
-	var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";
-
-	var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n#endif";
-
-	var lights_pars_begin = "uniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t\tfloat shadowCameraNear;\n\t\tfloat shadowCameraFar;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight  ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif";
-
-	var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, queryVec, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent ));\n\t\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\t\tvec2 sampleUV;\n\t\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif";
-
-	var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;";
-
-	var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3\tdiffuseColor;\n\tvec3\tspecularColor;\n\tfloat\tspecularShininess;\n\tfloat\tspecularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifdef TOON\n\t\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#else\n\t\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\t\tvec3 irradiance = dotNL * directLight.color;\n\t#endif\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)";
-
-	var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\n#ifdef STANDARD\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.clearCoat = saturate( clearCoat );\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\n#endif";
-
-	var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3\tdiffuseColor;\n\tfloat\tspecularRoughness;\n\tvec3\tspecularColor;\n\t#ifndef STANDARD\n\t\tfloat clearCoat;\n\t\tfloat clearCoatRoughness;\n\t#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifndef STANDARD\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\n\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#ifndef STANDARD\n\t\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#endif\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifndef STANDARD\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\tfloat dotNL = dotNV;\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\tfloat clearCoatInv = 1.0 - clearCoatDHR;\n\t#if defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec3 singleScattering = vec3( 0.0 );\n\t\tvec3 multiScattering = vec3( 0.0 );\n\t\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\t\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\t\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\t\treflectedLight.indirectSpecular += clearCoatInv * radiance * singleScattering;\n\t\treflectedLight.indirectDiffuse += multiScattering * cosineWeightedIrradiance;\n\t\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n\t#else\n\t\treflectedLight.indirectSpecular += clearCoatInv * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\n\t#endif\n\t#ifndef STANDARD\n\t\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\n#define Material_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.specularRoughness )\n#define Material_ClearCoat_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}";
-
-	var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = normalize( vViewPosition );\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearCoatRadiance = vec3( 0.0 );\n#endif";
-
-	var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tirradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), maxMipLevel );\n\t#ifndef STANDARD\n\t\tclearCoatRadiance += getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), maxMipLevel );\n\t#endif\n#endif";
-
-	var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, irradiance, clearCoatRadiance, geometry, material, reflectedLight );\n#endif";
-
-	var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";
-
-	var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n#endif";
-
-	var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif";
-
-	var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t#else\n\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\tgl_Position.z *= gl_Position.w;\n\t#endif\n#endif";
-
-	var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif";
-
-	var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif";
-
-	var map_particle_fragment = "#ifdef USE_MAP\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif";
-
-	var map_particle_pars_fragment = "#ifdef USE_MAP\n\tuniform mat3 uvTransform;\n\tuniform sampler2D map;\n#endif";
-
-	var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif";
-
-	var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";
-
-	var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\n\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\n\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\n\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\n#endif";
-
-	var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\t#ifndef USE_MORPHNORMALS\n\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif";
-
-	var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\n\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\n\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\n\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\n\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\n\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\n\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\n\t#endif\n#endif";
-
-	var normal_fragment_begin = "#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t\tbitangent = bitangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t#endif\n\t#endif\n#endif";
-
-	var normal_fragment_maps = "#ifdef USE_NORMALMAP\n\t#ifdef OBJECTSPACE_NORMALMAP\n\t\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\t#ifdef FLIP_SIDED\n\t\t\tnormal = - normal;\n\t\t#endif\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t#endif\n\t\tnormal = normalize( normalMatrix * normal );\n\t#else\n\t\t#ifdef USE_TANGENT\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\t\tmapN.xy = normalScale * mapN.xy;\n\t\t\tnormal = normalize( vTBN * mapN );\n\t\t#else\n\t\t\tnormal = perturbNormal2Arb( -vViewPosition, normal );\n\t\t#endif\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif";
-
-	var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n\t#ifdef OBJECTSPACE_NORMALMAP\n\t\tuniform mat3 normalMatrix;\n\t#else\n\t\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\n\t\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\t\tvec2 st0 = dFdx( vUv.st );\n\t\t\tvec2 st1 = dFdy( vUv.st );\n\t\t\tfloat scale = sign( st1.t * st0.s - st0.t * st1.s );\n\t\t\tvec3 S = normalize( ( q0 * st1.t - q1 * st0.t ) * scale );\n\t\t\tvec3 T = normalize( ( - q0 * st1.s + q1 * st0.s ) * scale );\n\t\t\tvec3 N = normalize( surf_norm );\n\t\t\tmat3 tsn = mat3( S, T, N );\n\t\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\t\tmapN.xy *= normalScale;\n\t\t\tmapN.xy *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t\treturn normalize( tsn * mapN );\n\t\t}\n\t#endif\n#endif";
-
-	var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256.,  256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}";
-
-	var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif";
-
-	var project_vertex = "vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\ngl_Position = projectionMatrix * mvPosition;";
-
-	var dithering_fragment = "#if defined( DITHERING )\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif";
-
-	var dithering_pars_fragment = "#if defined( DITHERING )\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif";
-
-	var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif";
-
-	var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";
-
-	var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\n\t\tconst vec2 offset = vec2( 0.0, 1.0 );\n\t\tvec2 texelSize = vec2( 1.0 ) / size;\n\t\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\n\t\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\n\t\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\n\t\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\n\t\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\n\t\tvec2 f = fract( uv * size + 0.5 );\n\t\tfloat a = mix( lb, lt, f.y );\n\t\tfloat b = mix( rb, rt, f.y );\n\t\tfloat c = mix( a, b, f.x );\n\t\treturn c;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif";
-
-	var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n#endif";
-
-	var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n#endif";
-
-	var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tDirectionalLight directionalLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tSpotLight spotLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tPointLight pointLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#endif\n\t#endif\n\treturn shadow;\n}";
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-	var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";
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-	var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif";
-
-	var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif";
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-	var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix  = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif";
-
-	var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";
-
-	var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";
-
-	var tonemapping_fragment = "#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif";
-
-	var tonemapping_pars_fragment = "#ifndef saturate\n\t#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nuniform float toneMappingWhitePoint;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\nvec3 Uncharted2ToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( ( color * ( 2.51 * color + 0.03 ) ) / ( color * ( 2.43 * color + 0.59 ) + 0.14 ) );\n}";
-
-	var uv_pars_fragment = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n#endif";
-
-	var uv_pars_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n\tuniform mat3 uvTransform;\n#endif";
-
-	var uv_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";
-
-	var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";
-
-	var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n#endif";
-
-	var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = uv2;\n#endif";
-
-	var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n#endif";
-
-	var background_frag = "uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
-
-	var background_vert = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}";
-
-	var cube_frag = "uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldDirection;\nvoid main() {\n\tvec4 texColor = textureCube( tCube, vec3( tFlip * vWorldDirection.x, vWorldDirection.yz ) );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
-
-	var cube_vert = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}";
-
-	var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - gl_FragCoord.z ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\n\t#endif\n}";
-
-	var depth_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n}";
-
-	var distanceRGBA_frag = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}";
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-	var distanceRGBA_vert = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}";
-
-	var equirect_frag = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV;\n\tsampleUV.y = asin( clamp( direction.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";
-
-	var equirect_vert = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}";
-
-	var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
-
-	var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\tvLineDistance = scale * lineDistance;\n\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
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-	var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
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-	var meshbasic_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}";
-
-	var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
-
-	var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
-
-	var meshmatcap_frag = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
-
-	var meshmatcap_vert = "#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}";
-
-	var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
-
-	var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
-
-	var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";
-
-	var meshphysical_vert = "#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
-
-	var normal_frag = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\nvoid main() {\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}";
-
-	var normal_vert = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}";
-
-	var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
-
-	var points_vert = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = ( projectionMatrix[ 2 ][ 3 ] == - 1.0 );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}";
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-	var shadow_frag = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <fog_fragment>\n}";
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-	var shadow_vert = "#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";
-
-	var sprite_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";
-
-	var sprite_vert = "uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = ( projectionMatrix[ 2 ][ 3 ] == - 1.0 );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";
-
-	var ShaderChunk = {
-		alphamap_fragment: alphamap_fragment,
-		alphamap_pars_fragment: alphamap_pars_fragment,
-		alphatest_fragment: alphatest_fragment,
-		aomap_fragment: aomap_fragment,
-		aomap_pars_fragment: aomap_pars_fragment,
-		begin_vertex: begin_vertex,
-		beginnormal_vertex: beginnormal_vertex,
-		bsdfs: bsdfs,
-		bumpmap_pars_fragment: bumpmap_pars_fragment,
-		clipping_planes_fragment: clipping_planes_fragment,
-		clipping_planes_pars_fragment: clipping_planes_pars_fragment,
-		clipping_planes_pars_vertex: clipping_planes_pars_vertex,
-		clipping_planes_vertex: clipping_planes_vertex,
-		color_fragment: color_fragment,
-		color_pars_fragment: color_pars_fragment,
-		color_pars_vertex: color_pars_vertex,
-		color_vertex: color_vertex,
-		common: common,
-		cube_uv_reflection_fragment: cube_uv_reflection_fragment,
-		defaultnormal_vertex: defaultnormal_vertex,
-		displacementmap_pars_vertex: displacementmap_pars_vertex,
-		displacementmap_vertex: displacementmap_vertex,
-		emissivemap_fragment: emissivemap_fragment,
-		emissivemap_pars_fragment: emissivemap_pars_fragment,
-		encodings_fragment: encodings_fragment,
-		encodings_pars_fragment: encodings_pars_fragment,
-		envmap_fragment: envmap_fragment,
-		envmap_pars_fragment: envmap_pars_fragment,
-		envmap_pars_vertex: envmap_pars_vertex,
-		envmap_physical_pars_fragment: envmap_physical_pars_fragment,
-		envmap_vertex: envmap_vertex,
-		fog_vertex: fog_vertex,
-		fog_pars_vertex: fog_pars_vertex,
-		fog_fragment: fog_fragment,
-		fog_pars_fragment: fog_pars_fragment,
-		gradientmap_pars_fragment: gradientmap_pars_fragment,
-		lightmap_fragment: lightmap_fragment,
-		lightmap_pars_fragment: lightmap_pars_fragment,
-		lights_lambert_vertex: lights_lambert_vertex,
-		lights_pars_begin: lights_pars_begin,
-		lights_phong_fragment: lights_phong_fragment,
-		lights_phong_pars_fragment: lights_phong_pars_fragment,
-		lights_physical_fragment: lights_physical_fragment,
-		lights_physical_pars_fragment: lights_physical_pars_fragment,
-		lights_fragment_begin: lights_fragment_begin,
-		lights_fragment_maps: lights_fragment_maps,
-		lights_fragment_end: lights_fragment_end,
-		logdepthbuf_fragment: logdepthbuf_fragment,
-		logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
-		logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
-		logdepthbuf_vertex: logdepthbuf_vertex,
-		map_fragment: map_fragment,
-		map_pars_fragment: map_pars_fragment,
-		map_particle_fragment: map_particle_fragment,
-		map_particle_pars_fragment: map_particle_pars_fragment,
-		metalnessmap_fragment: metalnessmap_fragment,
-		metalnessmap_pars_fragment: metalnessmap_pars_fragment,
-		morphnormal_vertex: morphnormal_vertex,
-		morphtarget_pars_vertex: morphtarget_pars_vertex,
-		morphtarget_vertex: morphtarget_vertex,
-		normal_fragment_begin: normal_fragment_begin,
-		normal_fragment_maps: normal_fragment_maps,
-		normalmap_pars_fragment: normalmap_pars_fragment,
-		packing: packing,
-		premultiplied_alpha_fragment: premultiplied_alpha_fragment,
-		project_vertex: project_vertex,
-		dithering_fragment: dithering_fragment,
-		dithering_pars_fragment: dithering_pars_fragment,
-		roughnessmap_fragment: roughnessmap_fragment,
-		roughnessmap_pars_fragment: roughnessmap_pars_fragment,
-		shadowmap_pars_fragment: shadowmap_pars_fragment,
-		shadowmap_pars_vertex: shadowmap_pars_vertex,
-		shadowmap_vertex: shadowmap_vertex,
-		shadowmask_pars_fragment: shadowmask_pars_fragment,
-		skinbase_vertex: skinbase_vertex,
-		skinning_pars_vertex: skinning_pars_vertex,
-		skinning_vertex: skinning_vertex,
-		skinnormal_vertex: skinnormal_vertex,
-		specularmap_fragment: specularmap_fragment,
-		specularmap_pars_fragment: specularmap_pars_fragment,
-		tonemapping_fragment: tonemapping_fragment,
-		tonemapping_pars_fragment: tonemapping_pars_fragment,
-		uv_pars_fragment: uv_pars_fragment,
-		uv_pars_vertex: uv_pars_vertex,
-		uv_vertex: uv_vertex,
-		uv2_pars_fragment: uv2_pars_fragment,
-		uv2_pars_vertex: uv2_pars_vertex,
-		uv2_vertex: uv2_vertex,
-		worldpos_vertex: worldpos_vertex,
-
-		background_frag: background_frag,
-		background_vert: background_vert,
-		cube_frag: cube_frag,
-		cube_vert: cube_vert,
-		depth_frag: depth_frag,
-		depth_vert: depth_vert,
-		distanceRGBA_frag: distanceRGBA_frag,
-		distanceRGBA_vert: distanceRGBA_vert,
-		equirect_frag: equirect_frag,
-		equirect_vert: equirect_vert,
-		linedashed_frag: linedashed_frag,
-		linedashed_vert: linedashed_vert,
-		meshbasic_frag: meshbasic_frag,
-		meshbasic_vert: meshbasic_vert,
-		meshlambert_frag: meshlambert_frag,
-		meshlambert_vert: meshlambert_vert,
-		meshmatcap_frag: meshmatcap_frag,
-		meshmatcap_vert: meshmatcap_vert,
-		meshphong_frag: meshphong_frag,
-		meshphong_vert: meshphong_vert,
-		meshphysical_frag: meshphysical_frag,
-		meshphysical_vert: meshphysical_vert,
-		normal_frag: normal_frag,
-		normal_vert: normal_vert,
-		points_frag: points_frag,
-		points_vert: points_vert,
-		shadow_frag: shadow_frag,
-		shadow_vert: shadow_vert,
-		sprite_frag: sprite_frag,
-		sprite_vert: sprite_vert
-	};
-
-	/**
-	 * Uniform Utilities
-	 */
-
-	function cloneUniforms( src ) {
-
-		var dst = {};
-
-		for ( var u in src ) {
-
-			dst[ u ] = {};
-
-			for ( var p in src[ u ] ) {
-
-				var property = src[ u ][ p ];
-
-				if ( property && ( property.isColor ||
-					property.isMatrix3 || property.isMatrix4 ||
-					property.isVector2 || property.isVector3 || property.isVector4 ||
-					property.isTexture ) ) {
-
-					dst[ u ][ p ] = property.clone();
-
-				} else if ( Array.isArray( property ) ) {
-
-					dst[ u ][ p ] = property.slice();
-
-				} else {
-
-					dst[ u ][ p ] = property;
-
-				}
-
-			}
-
-		}
-
-		return dst;
-
-	}
-
-	function mergeUniforms( uniforms ) {
-
-		var merged = {};
-
-		for ( var u = 0; u < uniforms.length; u ++ ) {
-
-			var tmp = cloneUniforms( uniforms[ u ] );
-
-			for ( var p in tmp ) {
-
-				merged[ p ] = tmp[ p ];
-
-			}
-
-		}
-
-		return merged;
-
-	}
-
-	// Legacy
-
-	var UniformsUtils = { clone: cloneUniforms, merge: mergeUniforms };
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,
-		'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,
-		'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,
-		'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,
-		'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,
-		'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,
-		'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,
-		'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,
-		'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,
-		'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,
-		'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,
-		'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,
-		'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,
-		'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,
-		'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,
-		'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,
-		'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,
-		'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,
-		'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,
-		'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,
-		'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,
-		'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,
-		'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,
-		'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };
-
-	function Color( r, g, b ) {
-
-		if ( g === undefined && b === undefined ) {
-
-			// r is THREE.Color, hex or string
-			return this.set( r );
-
-		}
-
-		return this.setRGB( r, g, b );
-
-	}
-
-	Object.assign( Color.prototype, {
-
-		isColor: true,
-
-		r: 1, g: 1, b: 1,
-
-		set: function ( value ) {
-
-			if ( value && value.isColor ) {
-
-				this.copy( value );
-
-			} else if ( typeof value === 'number' ) {
-
-				this.setHex( value );
-
-			} else if ( typeof value === 'string' ) {
-
-				this.setStyle( value );
-
-			}
-
-			return this;
-
-		},
-
-		setScalar: function ( scalar ) {
-
-			this.r = scalar;
-			this.g = scalar;
-			this.b = scalar;
-
-			return this;
-
-		},
-
-		setHex: function ( hex ) {
-
-			hex = Math.floor( hex );
-
-			this.r = ( hex >> 16 & 255 ) / 255;
-			this.g = ( hex >> 8 & 255 ) / 255;
-			this.b = ( hex & 255 ) / 255;
-
-			return this;
-
-		},
-
-		setRGB: function ( r, g, b ) {
-
-			this.r = r;
-			this.g = g;
-			this.b = b;
-
-			return this;
-
-		},
-
-		setHSL: function () {
-
-			function hue2rgb( p, q, t ) {
-
-				if ( t < 0 ) t += 1;
-				if ( t > 1 ) t -= 1;
-				if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;
-				if ( t < 1 / 2 ) return q;
-				if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );
-				return p;
-
-			}
-
-			return function setHSL( h, s, l ) {
-
-				// h,s,l ranges are in 0.0 - 1.0
-				h = _Math.euclideanModulo( h, 1 );
-				s = _Math.clamp( s, 0, 1 );
-				l = _Math.clamp( l, 0, 1 );
-
-				if ( s === 0 ) {
-
-					this.r = this.g = this.b = l;
-
-				} else {
-
-					var p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );
-					var q = ( 2 * l ) - p;
-
-					this.r = hue2rgb( q, p, h + 1 / 3 );
-					this.g = hue2rgb( q, p, h );
-					this.b = hue2rgb( q, p, h - 1 / 3 );
-
-				}
-
-				return this;
-
-			};
-
-		}(),
-
-		setStyle: function ( style ) {
-
-			function handleAlpha( string ) {
-
-				if ( string === undefined ) return;
-
-				if ( parseFloat( string ) < 1 ) {
-
-					console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );
-
-				}
-
-			}
-
-
-			var m;
-
-			if ( m = /^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec( style ) ) {
-
-				// rgb / hsl
-
-				var color;
-				var name = m[ 1 ];
-				var components = m[ 2 ];
-
-				switch ( name ) {
-
-					case 'rgb':
-					case 'rgba':
-
-						if ( color = /^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
-
-							// rgb(255,0,0) rgba(255,0,0,0.5)
-							this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;
-							this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;
-							this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;
-
-							handleAlpha( color[ 5 ] );
-
-							return this;
-
-						}
-
-						if ( color = /^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
-
-							// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
-							this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;
-							this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;
-							this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;
-
-							handleAlpha( color[ 5 ] );
-
-							return this;
-
-						}
-
-						break;
-
-					case 'hsl':
-					case 'hsla':
-
-						if ( color = /^([0-9]*\.?[0-9]+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
-
-							// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
-							var h = parseFloat( color[ 1 ] ) / 360;
-							var s = parseInt( color[ 2 ], 10 ) / 100;
-							var l = parseInt( color[ 3 ], 10 ) / 100;
-
-							handleAlpha( color[ 5 ] );
-
-							return this.setHSL( h, s, l );
-
-						}
-
-						break;
-
-				}
-
-			} else if ( m = /^\#([A-Fa-f0-9]+)$/.exec( style ) ) {
-
-				// hex color
-
-				var hex = m[ 1 ];
-				var size = hex.length;
-
-				if ( size === 3 ) {
-
-					// #ff0
-					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;
-					this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;
-					this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;
-
-					return this;
-
-				} else if ( size === 6 ) {
-
-					// #ff0000
-					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;
-					this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;
-					this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;
-
-					return this;
-
-				}
-
-			}
-
-			if ( style && style.length > 0 ) {
-
-				// color keywords
-				var hex = ColorKeywords[ style ];
-
-				if ( hex !== undefined ) {
-
-					// red
-					this.setHex( hex );
-
-				} else {
-
-					// unknown color
-					console.warn( 'THREE.Color: Unknown color ' + style );
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.r, this.g, this.b );
-
-		},
-
-		copy: function ( color ) {
-
-			this.r = color.r;
-			this.g = color.g;
-			this.b = color.b;
-
-			return this;
-
-		},
-
-		copyGammaToLinear: function ( color, gammaFactor ) {
-
-			if ( gammaFactor === undefined ) gammaFactor = 2.0;
-
-			this.r = Math.pow( color.r, gammaFactor );
-			this.g = Math.pow( color.g, gammaFactor );
-			this.b = Math.pow( color.b, gammaFactor );
-
-			return this;
-
-		},
-
-		copyLinearToGamma: function ( color, gammaFactor ) {
-
-			if ( gammaFactor === undefined ) gammaFactor = 2.0;
-
-			var safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;
-
-			this.r = Math.pow( color.r, safeInverse );
-			this.g = Math.pow( color.g, safeInverse );
-			this.b = Math.pow( color.b, safeInverse );
-
-			return this;
-
-		},
-
-		convertGammaToLinear: function ( gammaFactor ) {
-
-			this.copyGammaToLinear( this, gammaFactor );
-
-			return this;
-
-		},
-
-		convertLinearToGamma: function ( gammaFactor ) {
-
-			this.copyLinearToGamma( this, gammaFactor );
-
-			return this;
-
-		},
-
-		copySRGBToLinear: function () {
-
-			function SRGBToLinear( c ) {
-
-				return ( c < 0.04045 ) ? c * 0.0773993808 : Math.pow( c * 0.9478672986 + 0.0521327014, 2.4 );
-
-			}
-
-			return function copySRGBToLinear( color ) {
-
-				this.r = SRGBToLinear( color.r );
-				this.g = SRGBToLinear( color.g );
-				this.b = SRGBToLinear( color.b );
-
-				return this;
-
-			};
-
-		}(),
-
-		copyLinearToSRGB: function () {
-
-			function LinearToSRGB( c ) {
-
-				return ( c < 0.0031308 ) ? c * 12.92 : 1.055 * ( Math.pow( c, 0.41666 ) ) - 0.055;
-
-			}
-
-			return function copyLinearToSRGB( color ) {
-
-				this.r = LinearToSRGB( color.r );
-				this.g = LinearToSRGB( color.g );
-				this.b = LinearToSRGB( color.b );
-
-				return this;
-
-			};
-
-		}(),
-
-		convertSRGBToLinear: function () {
-
-			this.copySRGBToLinear( this );
-
-			return this;
-
-		},
-
-		convertLinearToSRGB: function () {
-
-			this.copyLinearToSRGB( this );
-
-			return this;
-
-		},
-
-		getHex: function () {
-
-			return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;
-
-		},
-
-		getHexString: function () {
-
-			return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );
-
-		},
-
-		getHSL: function ( target ) {
-
-			// h,s,l ranges are in 0.0 - 1.0
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Color: .getHSL() target is now required' );
-				target = { h: 0, s: 0, l: 0 };
-
-			}
-
-			var r = this.r, g = this.g, b = this.b;
-
-			var max = Math.max( r, g, b );
-			var min = Math.min( r, g, b );
-
-			var hue, saturation;
-			var lightness = ( min + max ) / 2.0;
-
-			if ( min === max ) {
-
-				hue = 0;
-				saturation = 0;
-
-			} else {
-
-				var delta = max - min;
-
-				saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );
-
-				switch ( max ) {
-
-					case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;
-					case g: hue = ( b - r ) / delta + 2; break;
-					case b: hue = ( r - g ) / delta + 4; break;
-
-				}
-
-				hue /= 6;
-
-			}
-
-			target.h = hue;
-			target.s = saturation;
-			target.l = lightness;
-
-			return target;
-
-		},
-
-		getStyle: function () {
-
-			return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';
-
-		},
-
-		offsetHSL: function () {
-
-			var hsl = {};
-
-			return function ( h, s, l ) {
-
-				this.getHSL( hsl );
-
-				hsl.h += h; hsl.s += s; hsl.l += l;
-
-				this.setHSL( hsl.h, hsl.s, hsl.l );
-
-				return this;
-
-			};
-
-		}(),
-
-		add: function ( color ) {
-
-			this.r += color.r;
-			this.g += color.g;
-			this.b += color.b;
-
-			return this;
-
-		},
-
-		addColors: function ( color1, color2 ) {
-
-			this.r = color1.r + color2.r;
-			this.g = color1.g + color2.g;
-			this.b = color1.b + color2.b;
-
-			return this;
-
-		},
-
-		addScalar: function ( s ) {
-
-			this.r += s;
-			this.g += s;
-			this.b += s;
-
-			return this;
-
-		},
-
-		sub: function ( color ) {
-
-			this.r = Math.max( 0, this.r - color.r );
-			this.g = Math.max( 0, this.g - color.g );
-			this.b = Math.max( 0, this.b - color.b );
-
-			return this;
-
-		},
-
-		multiply: function ( color ) {
-
-			this.r *= color.r;
-			this.g *= color.g;
-			this.b *= color.b;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( s ) {
-
-			this.r *= s;
-			this.g *= s;
-			this.b *= s;
-
-			return this;
-
-		},
-
-		lerp: function ( color, alpha ) {
-
-			this.r += ( color.r - this.r ) * alpha;
-			this.g += ( color.g - this.g ) * alpha;
-			this.b += ( color.b - this.b ) * alpha;
-
-			return this;
-
-		},
-
-		lerpHSL: function () {
-
-			var hslA = { h: 0, s: 0, l: 0 };
-			var hslB = { h: 0, s: 0, l: 0 };
-
-			return function lerpHSL( color, alpha ) {
-
-				this.getHSL( hslA );
-				color.getHSL( hslB );
-
-				var h = _Math.lerp( hslA.h, hslB.h, alpha );
-				var s = _Math.lerp( hslA.s, hslB.s, alpha );
-				var l = _Math.lerp( hslA.l, hslB.l, alpha );
-
-				this.setHSL( h, s, l );
-
-				return this;
-
-			};
-
-		}(),
-
-		equals: function ( c ) {
-
-			return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.r = array[ offset ];
-			this.g = array[ offset + 1 ];
-			this.b = array[ offset + 2 ];
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this.r;
-			array[ offset + 1 ] = this.g;
-			array[ offset + 2 ] = this.b;
-
-			return array;
-
-		},
-
-		toJSON: function () {
-
-			return this.getHex();
-
-		}
-
-	} );
-
-	/**
-	 * Uniforms library for shared webgl shaders
-	 */
-
-	var UniformsLib = {
-
-		common: {
-
-			diffuse: { value: new Color( 0xeeeeee ) },
-			opacity: { value: 1.0 },
-
-			map: { value: null },
-			uvTransform: { value: new Matrix3() },
-
-			alphaMap: { value: null },
-
-		},
-
-		specularmap: {
-
-			specularMap: { value: null },
-
-		},
-
-		envmap: {
-
-			envMap: { value: null },
-			flipEnvMap: { value: - 1 },
-			reflectivity: { value: 1.0 },
-			refractionRatio: { value: 0.98 },
-			maxMipLevel: { value: 0 }
-
-		},
-
-		aomap: {
-
-			aoMap: { value: null },
-			aoMapIntensity: { value: 1 }
-
-		},
-
-		lightmap: {
-
-			lightMap: { value: null },
-			lightMapIntensity: { value: 1 }
-
-		},
-
-		emissivemap: {
-
-			emissiveMap: { value: null }
-
-		},
-
-		bumpmap: {
-
-			bumpMap: { value: null },
-			bumpScale: { value: 1 }
-
-		},
-
-		normalmap: {
-
-			normalMap: { value: null },
-			normalScale: { value: new Vector2( 1, 1 ) }
-
-		},
-
-		displacementmap: {
-
-			displacementMap: { value: null },
-			displacementScale: { value: 1 },
-			displacementBias: { value: 0 }
-
-		},
-
-		roughnessmap: {
-
-			roughnessMap: { value: null }
-
-		},
-
-		metalnessmap: {
-
-			metalnessMap: { value: null }
-
-		},
-
-		gradientmap: {
-
-			gradientMap: { value: null }
-
-		},
-
-		fog: {
-
-			fogDensity: { value: 0.00025 },
-			fogNear: { value: 1 },
-			fogFar: { value: 2000 },
-			fogColor: { value: new Color( 0xffffff ) }
-
-		},
-
-		lights: {
-
-			ambientLightColor: { value: [] },
-
-			lightProbe: { value: [] },
-
-			directionalLights: { value: [], properties: {
-				direction: {},
-				color: {},
-
-				shadow: {},
-				shadowBias: {},
-				shadowRadius: {},
-				shadowMapSize: {}
-			} },
-
-			directionalShadowMap: { value: [] },
-			directionalShadowMatrix: { value: [] },
-
-			spotLights: { value: [], properties: {
-				color: {},
-				position: {},
-				direction: {},
-				distance: {},
-				coneCos: {},
-				penumbraCos: {},
-				decay: {},
-
-				shadow: {},
-				shadowBias: {},
-				shadowRadius: {},
-				shadowMapSize: {}
-			} },
-
-			spotShadowMap: { value: [] },
-			spotShadowMatrix: { value: [] },
-
-			pointLights: { value: [], properties: {
-				color: {},
-				position: {},
-				decay: {},
-				distance: {},
-
-				shadow: {},
-				shadowBias: {},
-				shadowRadius: {},
-				shadowMapSize: {},
-				shadowCameraNear: {},
-				shadowCameraFar: {}
-			} },
-
-			pointShadowMap: { value: [] },
-			pointShadowMatrix: { value: [] },
-
-			hemisphereLights: { value: [], properties: {
-				direction: {},
-				skyColor: {},
-				groundColor: {}
-			} },
-
-			// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
-			rectAreaLights: { value: [], properties: {
-				color: {},
-				position: {},
-				width: {},
-				height: {}
-			} }
-
-		},
-
-		points: {
-
-			diffuse: { value: new Color( 0xeeeeee ) },
-			opacity: { value: 1.0 },
-			size: { value: 1.0 },
-			scale: { value: 1.0 },
-			map: { value: null },
-			uvTransform: { value: new Matrix3() }
-
-		},
-
-		sprite: {
-
-			diffuse: { value: new Color( 0xeeeeee ) },
-			opacity: { value: 1.0 },
-			center: { value: new Vector2( 0.5, 0.5 ) },
-			rotation: { value: 0.0 },
-			map: { value: null },
-			uvTransform: { value: new Matrix3() }
-
-		}
-
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 */
-
-	var ShaderLib = {
-
-		basic: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.common,
-				UniformsLib.specularmap,
-				UniformsLib.envmap,
-				UniformsLib.aomap,
-				UniformsLib.lightmap,
-				UniformsLib.fog
-			] ),
-
-			vertexShader: ShaderChunk.meshbasic_vert,
-			fragmentShader: ShaderChunk.meshbasic_frag
-
-		},
-
-		lambert: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.common,
-				UniformsLib.specularmap,
-				UniformsLib.envmap,
-				UniformsLib.aomap,
-				UniformsLib.lightmap,
-				UniformsLib.emissivemap,
-				UniformsLib.fog,
-				UniformsLib.lights,
-				{
-					emissive: { value: new Color( 0x000000 ) }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.meshlambert_vert,
-			fragmentShader: ShaderChunk.meshlambert_frag
-
-		},
-
-		phong: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.common,
-				UniformsLib.specularmap,
-				UniformsLib.envmap,
-				UniformsLib.aomap,
-				UniformsLib.lightmap,
-				UniformsLib.emissivemap,
-				UniformsLib.bumpmap,
-				UniformsLib.normalmap,
-				UniformsLib.displacementmap,
-				UniformsLib.gradientmap,
-				UniformsLib.fog,
-				UniformsLib.lights,
-				{
-					emissive: { value: new Color( 0x000000 ) },
-					specular: { value: new Color( 0x111111 ) },
-					shininess: { value: 30 }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.meshphong_vert,
-			fragmentShader: ShaderChunk.meshphong_frag
-
-		},
-
-		standard: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.common,
-				UniformsLib.envmap,
-				UniformsLib.aomap,
-				UniformsLib.lightmap,
-				UniformsLib.emissivemap,
-				UniformsLib.bumpmap,
-				UniformsLib.normalmap,
-				UniformsLib.displacementmap,
-				UniformsLib.roughnessmap,
-				UniformsLib.metalnessmap,
-				UniformsLib.fog,
-				UniformsLib.lights,
-				{
-					emissive: { value: new Color( 0x000000 ) },
-					roughness: { value: 0.5 },
-					metalness: { value: 0.5 },
-					envMapIntensity: { value: 1 } // temporary
-				}
-			] ),
-
-			vertexShader: ShaderChunk.meshphysical_vert,
-			fragmentShader: ShaderChunk.meshphysical_frag
-
-		},
-
-		matcap: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.common,
-				UniformsLib.bumpmap,
-				UniformsLib.normalmap,
-				UniformsLib.displacementmap,
-				UniformsLib.fog,
-				{
-					matcap: { value: null }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.meshmatcap_vert,
-			fragmentShader: ShaderChunk.meshmatcap_frag
-
-		},
-
-		points: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.points,
-				UniformsLib.fog
-			] ),
-
-			vertexShader: ShaderChunk.points_vert,
-			fragmentShader: ShaderChunk.points_frag
-
-		},
-
-		dashed: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.common,
-				UniformsLib.fog,
-				{
-					scale: { value: 1 },
-					dashSize: { value: 1 },
-					totalSize: { value: 2 }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.linedashed_vert,
-			fragmentShader: ShaderChunk.linedashed_frag
-
-		},
-
-		depth: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.common,
-				UniformsLib.displacementmap
-			] ),
-
-			vertexShader: ShaderChunk.depth_vert,
-			fragmentShader: ShaderChunk.depth_frag
-
-		},
-
-		normal: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.common,
-				UniformsLib.bumpmap,
-				UniformsLib.normalmap,
-				UniformsLib.displacementmap,
-				{
-					opacity: { value: 1.0 }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.normal_vert,
-			fragmentShader: ShaderChunk.normal_frag
-
-		},
-
-		sprite: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.sprite,
-				UniformsLib.fog
-			] ),
-
-			vertexShader: ShaderChunk.sprite_vert,
-			fragmentShader: ShaderChunk.sprite_frag
-
-		},
-
-		background: {
-
-			uniforms: {
-				uvTransform: { value: new Matrix3() },
-				t2D: { value: null },
-			},
-
-			vertexShader: ShaderChunk.background_vert,
-			fragmentShader: ShaderChunk.background_frag
-
-		},
-		/* -------------------------------------------------------------------------
-		//	Cube map shader
-		 ------------------------------------------------------------------------- */
-
-		cube: {
-
-			uniforms: {
-				tCube: { value: null },
-				tFlip: { value: - 1 },
-				opacity: { value: 1.0 }
-			},
-
-			vertexShader: ShaderChunk.cube_vert,
-			fragmentShader: ShaderChunk.cube_frag
-
-		},
-
-		equirect: {
-
-			uniforms: {
-				tEquirect: { value: null },
-			},
-
-			vertexShader: ShaderChunk.equirect_vert,
-			fragmentShader: ShaderChunk.equirect_frag
-
-		},
-
-		distanceRGBA: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.common,
-				UniformsLib.displacementmap,
-				{
-					referencePosition: { value: new Vector3() },
-					nearDistance: { value: 1 },
-					farDistance: { value: 1000 }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.distanceRGBA_vert,
-			fragmentShader: ShaderChunk.distanceRGBA_frag
-
-		},
-
-		shadow: {
-
-			uniforms: mergeUniforms( [
-				UniformsLib.lights,
-				UniformsLib.fog,
-				{
-					color: { value: new Color( 0x00000 ) },
-					opacity: { value: 1.0 }
-				},
-			] ),
-
-			vertexShader: ShaderChunk.shadow_vert,
-			fragmentShader: ShaderChunk.shadow_frag
-
-		}
-
-	};
-
-	ShaderLib.physical = {
-
-		uniforms: mergeUniforms( [
-			ShaderLib.standard.uniforms,
-			{
-				clearCoat: { value: 0 },
-				clearCoatRoughness: { value: 0 }
-			}
-		] ),
-
-		vertexShader: ShaderChunk.meshphysical_vert,
-		fragmentShader: ShaderChunk.meshphysical_frag
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLAnimation() {
-
-		var context = null;
-		var isAnimating = false;
-		var animationLoop = null;
-
-		function onAnimationFrame( time, frame ) {
-
-			if ( isAnimating === false ) return;
-
-			animationLoop( time, frame );
-
-			context.requestAnimationFrame( onAnimationFrame );
-
-		}
-
-		return {
-
-			start: function () {
-
-				if ( isAnimating === true ) return;
-				if ( animationLoop === null ) return;
-
-				context.requestAnimationFrame( onAnimationFrame );
-
-				isAnimating = true;
-
-			},
-
-			stop: function () {
-
-				isAnimating = false;
-
-			},
-
-			setAnimationLoop: function ( callback ) {
-
-				animationLoop = callback;
-
-			},
-
-			setContext: function ( value ) {
-
-				context = value;
-
-			}
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLAttributes( gl ) {
-
-		var buffers = new WeakMap();
-
-		function createBuffer( attribute, bufferType ) {
-
-			var array = attribute.array;
-			var usage = attribute.dynamic ? 35048 : 35044;
-
-			var buffer = gl.createBuffer();
-
-			gl.bindBuffer( bufferType, buffer );
-			gl.bufferData( bufferType, array, usage );
-
-			attribute.onUploadCallback();
-
-			var type = 5126;
-
-			if ( array instanceof Float32Array ) {
-
-				type = 5126;
-
-			} else if ( array instanceof Float64Array ) {
-
-				console.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' );
-
-			} else if ( array instanceof Uint16Array ) {
-
-				type = 5123;
-
-			} else if ( array instanceof Int16Array ) {
-
-				type = 5122;
-
-			} else if ( array instanceof Uint32Array ) {
-
-				type = 5125;
-
-			} else if ( array instanceof Int32Array ) {
-
-				type = 5124;
-
-			} else if ( array instanceof Int8Array ) {
-
-				type = 5120;
-
-			} else if ( array instanceof Uint8Array ) {
-
-				type = 5121;
-
-			}
-
-			return {
-				buffer: buffer,
-				type: type,
-				bytesPerElement: array.BYTES_PER_ELEMENT,
-				version: attribute.version
-			};
-
-		}
-
-		function updateBuffer( buffer, attribute, bufferType ) {
-
-			var array = attribute.array;
-			var updateRange = attribute.updateRange;
-
-			gl.bindBuffer( bufferType, buffer );
-
-			if ( attribute.dynamic === false ) {
-
-				gl.bufferData( bufferType, array, 35044 );
-
-			} else if ( updateRange.count === - 1 ) {
-
-				// Not using update ranges
-
-				gl.bufferSubData( bufferType, 0, array );
-
-			} else if ( updateRange.count === 0 ) {
-
-				console.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );
-
-			} else {
-
-				gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
-					array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );
-
-				updateRange.count = - 1; // reset range
-
-			}
-
-		}
-
-		//
-
-		function get( attribute ) {
-
-			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
-
-			return buffers.get( attribute );
-
-		}
-
-		function remove( attribute ) {
-
-			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
-
-			var data = buffers.get( attribute );
-
-			if ( data ) {
-
-				gl.deleteBuffer( data.buffer );
-
-				buffers.delete( attribute );
-
-			}
-
-		}
-
-		function update( attribute, bufferType ) {
-
-			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
-
-			var data = buffers.get( attribute );
-
-			if ( data === undefined ) {
-
-				buffers.set( attribute, createBuffer( attribute, bufferType ) );
-
-			} else if ( data.version < attribute.version ) {
-
-				updateBuffer( data.buffer, attribute, bufferType );
-
-				data.version = attribute.version;
-
-			}
-
-		}
-
-		return {
-
-			get: get,
-			remove: remove,
-			update: update
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Face3( a, b, c, normal, color, materialIndex ) {
-
-		this.a = a;
-		this.b = b;
-		this.c = c;
-
-		this.normal = ( normal && normal.isVector3 ) ? normal : new Vector3();
-		this.vertexNormals = Array.isArray( normal ) ? normal : [];
-
-		this.color = ( color && color.isColor ) ? color : new Color();
-		this.vertexColors = Array.isArray( color ) ? color : [];
-
-		this.materialIndex = materialIndex !== undefined ? materialIndex : 0;
-
-	}
-
-	Object.assign( Face3.prototype, {
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.a = source.a;
-			this.b = source.b;
-			this.c = source.c;
-
-			this.normal.copy( source.normal );
-			this.color.copy( source.color );
-
-			this.materialIndex = source.materialIndex;
-
-			for ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {
-
-				this.vertexNormals[ i ] = source.vertexNormals[ i ].clone();
-
-			}
-
-			for ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {
-
-				this.vertexColors[ i ] = source.vertexColors[ i ].clone();
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Euler( x, y, z, order ) {
-
-		this._x = x || 0;
-		this._y = y || 0;
-		this._z = z || 0;
-		this._order = order || Euler.DefaultOrder;
-
-	}
-
-	Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];
-
-	Euler.DefaultOrder = 'XYZ';
-
-	Object.defineProperties( Euler.prototype, {
-
-		x: {
-
-			get: function () {
-
-				return this._x;
-
-			},
-
-			set: function ( value ) {
-
-				this._x = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		y: {
-
-			get: function () {
-
-				return this._y;
-
-			},
-
-			set: function ( value ) {
-
-				this._y = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		z: {
-
-			get: function () {
-
-				return this._z;
-
-			},
-
-			set: function ( value ) {
-
-				this._z = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		order: {
-
-			get: function () {
-
-				return this._order;
-
-			},
-
-			set: function ( value ) {
-
-				this._order = value;
-				this.onChangeCallback();
-
-			}
-
-		}
-
-	} );
-
-	Object.assign( Euler.prototype, {
-
-		isEuler: true,
-
-		set: function ( x, y, z, order ) {
-
-			this._x = x;
-			this._y = y;
-			this._z = z;
-			this._order = order || this._order;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this._x, this._y, this._z, this._order );
-
-		},
-
-		copy: function ( euler ) {
-
-			this._x = euler._x;
-			this._y = euler._y;
-			this._z = euler._z;
-			this._order = euler._order;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromRotationMatrix: function ( m, order, update ) {
-
-			var clamp = _Math.clamp;
-
-			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
-			var te = m.elements;
-			var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
-			var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
-			var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];
-
-			order = order || this._order;
-
-			if ( order === 'XYZ' ) {
-
-				this._y = Math.asin( clamp( m13, - 1, 1 ) );
-
-				if ( Math.abs( m13 ) < 0.99999 ) {
-
-					this._x = Math.atan2( - m23, m33 );
-					this._z = Math.atan2( - m12, m11 );
-
-				} else {
-
-					this._x = Math.atan2( m32, m22 );
-					this._z = 0;
-
-				}
-
-			} else if ( order === 'YXZ' ) {
-
-				this._x = Math.asin( - clamp( m23, - 1, 1 ) );
-
-				if ( Math.abs( m23 ) < 0.99999 ) {
-
-					this._y = Math.atan2( m13, m33 );
-					this._z = Math.atan2( m21, m22 );
-
-				} else {
-
-					this._y = Math.atan2( - m31, m11 );
-					this._z = 0;
-
-				}
-
-			} else if ( order === 'ZXY' ) {
-
-				this._x = Math.asin( clamp( m32, - 1, 1 ) );
-
-				if ( Math.abs( m32 ) < 0.99999 ) {
-
-					this._y = Math.atan2( - m31, m33 );
-					this._z = Math.atan2( - m12, m22 );
-
-				} else {
-
-					this._y = 0;
-					this._z = Math.atan2( m21, m11 );
-
-				}
-
-			} else if ( order === 'ZYX' ) {
-
-				this._y = Math.asin( - clamp( m31, - 1, 1 ) );
-
-				if ( Math.abs( m31 ) < 0.99999 ) {
-
-					this._x = Math.atan2( m32, m33 );
-					this._z = Math.atan2( m21, m11 );
-
-				} else {
-
-					this._x = 0;
-					this._z = Math.atan2( - m12, m22 );
-
-				}
-
-			} else if ( order === 'YZX' ) {
-
-				this._z = Math.asin( clamp( m21, - 1, 1 ) );
-
-				if ( Math.abs( m21 ) < 0.99999 ) {
-
-					this._x = Math.atan2( - m23, m22 );
-					this._y = Math.atan2( - m31, m11 );
-
-				} else {
-
-					this._x = 0;
-					this._y = Math.atan2( m13, m33 );
-
-				}
-
-			} else if ( order === 'XZY' ) {
-
-				this._z = Math.asin( - clamp( m12, - 1, 1 ) );
-
-				if ( Math.abs( m12 ) < 0.99999 ) {
-
-					this._x = Math.atan2( m32, m22 );
-					this._y = Math.atan2( m13, m11 );
-
-				} else {
-
-					this._x = Math.atan2( - m23, m33 );
-					this._y = 0;
-
-				}
-
-			} else {
-
-				console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );
-
-			}
-
-			this._order = order;
-
-			if ( update !== false ) this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromQuaternion: function () {
-
-			var matrix = new Matrix4();
-
-			return function setFromQuaternion( q, order, update ) {
-
-				matrix.makeRotationFromQuaternion( q );
-
-				return this.setFromRotationMatrix( matrix, order, update );
-
-			};
-
-		}(),
-
-		setFromVector3: function ( v, order ) {
-
-			return this.set( v.x, v.y, v.z, order || this._order );
-
-		},
-
-		reorder: function () {
-
-			// WARNING: this discards revolution information -bhouston
-
-			var q = new Quaternion();
-
-			return function reorder( newOrder ) {
-
-				q.setFromEuler( this );
-
-				return this.setFromQuaternion( q, newOrder );
-
-			};
-
-		}(),
-
-		equals: function ( euler ) {
-
-			return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );
-
-		},
-
-		fromArray: function ( array ) {
-
-			this._x = array[ 0 ];
-			this._y = array[ 1 ];
-			this._z = array[ 2 ];
-			if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this._x;
-			array[ offset + 1 ] = this._y;
-			array[ offset + 2 ] = this._z;
-			array[ offset + 3 ] = this._order;
-
-			return array;
-
-		},
-
-		toVector3: function ( optionalResult ) {
-
-			if ( optionalResult ) {
-
-				return optionalResult.set( this._x, this._y, this._z );
-
-			} else {
-
-				return new Vector3( this._x, this._y, this._z );
-
-			}
-
-		},
-
-		onChange: function ( callback ) {
-
-			this.onChangeCallback = callback;
-
-			return this;
-
-		},
-
-		onChangeCallback: function () {}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Layers() {
-
-		this.mask = 1 | 0;
-
-	}
-
-	Object.assign( Layers.prototype, {
-
-		set: function ( channel ) {
-
-			this.mask = 1 << channel | 0;
-
-		},
-
-		enable: function ( channel ) {
-
-			this.mask |= 1 << channel | 0;
-
-		},
-
-		toggle: function ( channel ) {
-
-			this.mask ^= 1 << channel | 0;
-
-		},
-
-		disable: function ( channel ) {
-
-			this.mask &= ~ ( 1 << channel | 0 );
-
-		},
-
-		test: function ( layers ) {
-
-			return ( this.mask & layers.mask ) !== 0;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author elephantatwork / www.elephantatwork.ch
-	 */
-
-	var object3DId = 0;
-
-	function Object3D() {
-
-		Object.defineProperty( this, 'id', { value: object3DId ++ } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-		this.type = 'Object3D';
-
-		this.parent = null;
-		this.children = [];
-
-		this.up = Object3D.DefaultUp.clone();
-
-		var position = new Vector3();
-		var rotation = new Euler();
-		var quaternion = new Quaternion();
-		var scale = new Vector3( 1, 1, 1 );
-
-		function onRotationChange() {
-
-			quaternion.setFromEuler( rotation, false );
-
-		}
-
-		function onQuaternionChange() {
-
-			rotation.setFromQuaternion( quaternion, undefined, false );
-
-		}
-
-		rotation.onChange( onRotationChange );
-		quaternion.onChange( onQuaternionChange );
-
-		Object.defineProperties( this, {
-			position: {
-				configurable: true,
-				enumerable: true,
-				value: position
-			},
-			rotation: {
-				configurable: true,
-				enumerable: true,
-				value: rotation
-			},
-			quaternion: {
-				configurable: true,
-				enumerable: true,
-				value: quaternion
-			},
-			scale: {
-				configurable: true,
-				enumerable: true,
-				value: scale
-			},
-			modelViewMatrix: {
-				value: new Matrix4()
-			},
-			normalMatrix: {
-				value: new Matrix3()
-			}
-		} );
-
-		this.matrix = new Matrix4();
-		this.matrixWorld = new Matrix4();
-
-		this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
-		this.matrixWorldNeedsUpdate = false;
-
-		this.layers = new Layers();
-		this.visible = true;
-
-		this.castShadow = false;
-		this.receiveShadow = false;
-
-		this.frustumCulled = true;
-		this.renderOrder = 0;
-
-		this.userData = {};
-
-	}
-
-	Object3D.DefaultUp = new Vector3( 0, 1, 0 );
-	Object3D.DefaultMatrixAutoUpdate = true;
-
-	Object3D.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: Object3D,
-
-		isObject3D: true,
-
-		onBeforeRender: function () {},
-		onAfterRender: function () {},
-
-		applyMatrix: function ( matrix ) {
-
-			if ( this.matrixAutoUpdate ) this.updateMatrix();
-
-			this.matrix.premultiply( matrix );
-
-			this.matrix.decompose( this.position, this.quaternion, this.scale );
-
-		},
-
-		applyQuaternion: function ( q ) {
-
-			this.quaternion.premultiply( q );
-
-			return this;
-
-		},
-
-		setRotationFromAxisAngle: function ( axis, angle ) {
-
-			// assumes axis is normalized
-
-			this.quaternion.setFromAxisAngle( axis, angle );
-
-		},
-
-		setRotationFromEuler: function ( euler ) {
-
-			this.quaternion.setFromEuler( euler, true );
-
-		},
-
-		setRotationFromMatrix: function ( m ) {
-
-			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
-			this.quaternion.setFromRotationMatrix( m );
-
-		},
-
-		setRotationFromQuaternion: function ( q ) {
-
-			// assumes q is normalized
-
-			this.quaternion.copy( q );
-
-		},
-
-		rotateOnAxis: function () {
-
-			// rotate object on axis in object space
-			// axis is assumed to be normalized
-
-			var q1 = new Quaternion();
-
-			return function rotateOnAxis( axis, angle ) {
-
-				q1.setFromAxisAngle( axis, angle );
-
-				this.quaternion.multiply( q1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateOnWorldAxis: function () {
-
-			// rotate object on axis in world space
-			// axis is assumed to be normalized
-			// method assumes no rotated parent
-
-			var q1 = new Quaternion();
-
-			return function rotateOnWorldAxis( axis, angle ) {
-
-				q1.setFromAxisAngle( axis, angle );
-
-				this.quaternion.premultiply( q1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateX: function () {
-
-			var v1 = new Vector3( 1, 0, 0 );
-
-			return function rotateX( angle ) {
-
-				return this.rotateOnAxis( v1, angle );
-
-			};
-
-		}(),
-
-		rotateY: function () {
-
-			var v1 = new Vector3( 0, 1, 0 );
-
-			return function rotateY( angle ) {
-
-				return this.rotateOnAxis( v1, angle );
-
-			};
-
-		}(),
-
-		rotateZ: function () {
-
-			var v1 = new Vector3( 0, 0, 1 );
-
-			return function rotateZ( angle ) {
-
-				return this.rotateOnAxis( v1, angle );
-
-			};
-
-		}(),
-
-		translateOnAxis: function () {
-
-			// translate object by distance along axis in object space
-			// axis is assumed to be normalized
-
-			var v1 = new Vector3();
-
-			return function translateOnAxis( axis, distance ) {
-
-				v1.copy( axis ).applyQuaternion( this.quaternion );
-
-				this.position.add( v1.multiplyScalar( distance ) );
-
-				return this;
-
-			};
-
-		}(),
-
-		translateX: function () {
-
-			var v1 = new Vector3( 1, 0, 0 );
-
-			return function translateX( distance ) {
-
-				return this.translateOnAxis( v1, distance );
-
-			};
-
-		}(),
-
-		translateY: function () {
-
-			var v1 = new Vector3( 0, 1, 0 );
-
-			return function translateY( distance ) {
-
-				return this.translateOnAxis( v1, distance );
-
-			};
-
-		}(),
-
-		translateZ: function () {
-
-			var v1 = new Vector3( 0, 0, 1 );
-
-			return function translateZ( distance ) {
-
-				return this.translateOnAxis( v1, distance );
-
-			};
-
-		}(),
-
-		localToWorld: function ( vector ) {
-
-			return vector.applyMatrix4( this.matrixWorld );
-
-		},
-
-		worldToLocal: function () {
-
-			var m1 = new Matrix4();
-
-			return function worldToLocal( vector ) {
-
-				return vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );
-
-			};
-
-		}(),
-
-		lookAt: function () {
-
-			// This method does not support objects having non-uniformly-scaled parent(s)
-
-			var q1 = new Quaternion();
-			var m1 = new Matrix4();
-			var target = new Vector3();
-			var position = new Vector3();
-
-			return function lookAt( x, y, z ) {
-
-				if ( x.isVector3 ) {
-
-					target.copy( x );
-
-				} else {
-
-					target.set( x, y, z );
-
-				}
-
-				var parent = this.parent;
-
-				this.updateWorldMatrix( true, false );
-
-				position.setFromMatrixPosition( this.matrixWorld );
-
-				if ( this.isCamera || this.isLight ) {
-
-					m1.lookAt( position, target, this.up );
-
-				} else {
-
-					m1.lookAt( target, position, this.up );
-
-				}
-
-				this.quaternion.setFromRotationMatrix( m1 );
-
-				if ( parent ) {
-
-					m1.extractRotation( parent.matrixWorld );
-					q1.setFromRotationMatrix( m1 );
-					this.quaternion.premultiply( q1.inverse() );
-
-				}
-
-			};
-
-		}(),
-
-		add: function ( object ) {
-
-			if ( arguments.length > 1 ) {
-
-				for ( var i = 0; i < arguments.length; i ++ ) {
-
-					this.add( arguments[ i ] );
-
-				}
-
-				return this;
-
-			}
-
-			if ( object === this ) {
-
-				console.error( "THREE.Object3D.add: object can't be added as a child of itself.", object );
-				return this;
-
-			}
-
-			if ( ( object && object.isObject3D ) ) {
-
-				if ( object.parent !== null ) {
-
-					object.parent.remove( object );
-
-				}
-
-				object.parent = this;
-				object.dispatchEvent( { type: 'added' } );
-
-				this.children.push( object );
-
-			} else {
-
-				console.error( "THREE.Object3D.add: object not an instance of THREE.Object3D.", object );
-
-			}
-
-			return this;
-
-		},
-
-		remove: function ( object ) {
-
-			if ( arguments.length > 1 ) {
-
-				for ( var i = 0; i < arguments.length; i ++ ) {
-
-					this.remove( arguments[ i ] );
-
-				}
-
-				return this;
-
-			}
-
-			var index = this.children.indexOf( object );
-
-			if ( index !== - 1 ) {
-
-				object.parent = null;
-
-				object.dispatchEvent( { type: 'removed' } );
-
-				this.children.splice( index, 1 );
-
-			}
-
-			return this;
-
-		},
-
-		attach: function () {
-
-			// adds object as a child of this, while maintaining the object's world transform
-
-			var m = new Matrix4();
-
-			return function attach( object ) {
-
-				this.updateWorldMatrix( true, false );
-
-				m.getInverse( this.matrixWorld );
-
-				if ( object.parent !== null ) {
-
-					object.parent.updateWorldMatrix( true, false );
-
-					m.multiply( object.parent.matrixWorld );
-
-				}
-
-				object.applyMatrix( m );
-
-				object.updateWorldMatrix( false, false );
-
-				this.add( object );
-
-				return this;
-
-			};
-
-		}(),
-
-		getObjectById: function ( id ) {
-
-			return this.getObjectByProperty( 'id', id );
-
-		},
-
-		getObjectByName: function ( name ) {
-
-			return this.getObjectByProperty( 'name', name );
-
-		},
-
-		getObjectByProperty: function ( name, value ) {
-
-			if ( this[ name ] === value ) return this;
-
-			for ( var i = 0, l = this.children.length; i < l; i ++ ) {
-
-				var child = this.children[ i ];
-				var object = child.getObjectByProperty( name, value );
-
-				if ( object !== undefined ) {
-
-					return object;
-
-				}
-
-			}
-
-			return undefined;
-
-		},
-
-		getWorldPosition: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Object3D: .getWorldPosition() target is now required' );
-				target = new Vector3();
-
-			}
-
-			this.updateMatrixWorld( true );
-
-			return target.setFromMatrixPosition( this.matrixWorld );
-
-		},
-
-		getWorldQuaternion: function () {
-
-			var position = new Vector3();
-			var scale = new Vector3();
-
-			return function getWorldQuaternion( target ) {
-
-				if ( target === undefined ) {
-
-					console.warn( 'THREE.Object3D: .getWorldQuaternion() target is now required' );
-					target = new Quaternion();
-
-				}
-
-				this.updateMatrixWorld( true );
-
-				this.matrixWorld.decompose( position, target, scale );
-
-				return target;
-
-			};
-
-		}(),
-
-		getWorldScale: function () {
-
-			var position = new Vector3();
-			var quaternion = new Quaternion();
-
-			return function getWorldScale( target ) {
-
-				if ( target === undefined ) {
-
-					console.warn( 'THREE.Object3D: .getWorldScale() target is now required' );
-					target = new Vector3();
-
-				}
-
-				this.updateMatrixWorld( true );
-
-				this.matrixWorld.decompose( position, quaternion, target );
-
-				return target;
-
-			};
-
-		}(),
-
-		getWorldDirection: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Object3D: .getWorldDirection() target is now required' );
-				target = new Vector3();
-
-			}
-
-			this.updateMatrixWorld( true );
-
-			var e = this.matrixWorld.elements;
-
-			return target.set( e[ 8 ], e[ 9 ], e[ 10 ] ).normalize();
-
-		},
-
-		raycast: function () {},
-
-		traverse: function ( callback ) {
-
-			callback( this );
-
-			var children = this.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				children[ i ].traverse( callback );
-
-			}
-
-		},
-
-		traverseVisible: function ( callback ) {
-
-			if ( this.visible === false ) return;
-
-			callback( this );
-
-			var children = this.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				children[ i ].traverseVisible( callback );
-
-			}
-
-		},
-
-		traverseAncestors: function ( callback ) {
-
-			var parent = this.parent;
-
-			if ( parent !== null ) {
-
-				callback( parent );
-
-				parent.traverseAncestors( callback );
-
-			}
-
-		},
-
-		updateMatrix: function () {
-
-			this.matrix.compose( this.position, this.quaternion, this.scale );
-
-			this.matrixWorldNeedsUpdate = true;
-
-		},
-
-		updateMatrixWorld: function ( force ) {
-
-			if ( this.matrixAutoUpdate ) this.updateMatrix();
-
-			if ( this.matrixWorldNeedsUpdate || force ) {
-
-				if ( this.parent === null ) {
-
-					this.matrixWorld.copy( this.matrix );
-
-				} else {
-
-					this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );
-
-				}
-
-				this.matrixWorldNeedsUpdate = false;
-
-				force = true;
-
-			}
-
-			// update children
-
-			var children = this.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				children[ i ].updateMatrixWorld( force );
-
-			}
-
-		},
-
-		updateWorldMatrix: function ( updateParents, updateChildren ) {
-
-			var parent = this.parent;
-
-			if ( updateParents === true && parent !== null ) {
-
-				parent.updateWorldMatrix( true, false );
-
-			}
-
-			if ( this.matrixAutoUpdate ) this.updateMatrix();
-
-			if ( this.parent === null ) {
-
-				this.matrixWorld.copy( this.matrix );
-
-			} else {
-
-				this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );
-
-			}
-
-			// update children
-
-			if ( updateChildren === true ) {
-
-				var children = this.children;
-
-				for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-					children[ i ].updateWorldMatrix( false, true );
-
-				}
-
-			}
-
-		},
-
-		toJSON: function ( meta ) {
-
-			// meta is a string when called from JSON.stringify
-			var isRootObject = ( meta === undefined || typeof meta === 'string' );
-
-			var output = {};
-
-			// meta is a hash used to collect geometries, materials.
-			// not providing it implies that this is the root object
-			// being serialized.
-			if ( isRootObject ) {
-
-				// initialize meta obj
-				meta = {
-					geometries: {},
-					materials: {},
-					textures: {},
-					images: {},
-					shapes: {}
-				};
-
-				output.metadata = {
-					version: 4.5,
-					type: 'Object',
-					generator: 'Object3D.toJSON'
-				};
-
-			}
-
-			// standard Object3D serialization
-
-			var object = {};
-
-			object.uuid = this.uuid;
-			object.type = this.type;
-
-			if ( this.name !== '' ) object.name = this.name;
-			if ( this.castShadow === true ) object.castShadow = true;
-			if ( this.receiveShadow === true ) object.receiveShadow = true;
-			if ( this.visible === false ) object.visible = false;
-			if ( this.frustumCulled === false ) object.frustumCulled = false;
-			if ( this.renderOrder !== 0 ) object.renderOrder = this.renderOrder;
-			if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;
-
-			object.layers = this.layers.mask;
-			object.matrix = this.matrix.toArray();
-
-			if ( this.matrixAutoUpdate === false ) object.matrixAutoUpdate = false;
-
-			// object specific properties
-
-			if ( this.isMesh && this.drawMode !== TrianglesDrawMode ) object.drawMode = this.drawMode;
-
-			//
-
-			function serialize( library, element ) {
-
-				if ( library[ element.uuid ] === undefined ) {
-
-					library[ element.uuid ] = element.toJSON( meta );
-
-				}
-
-				return element.uuid;
-
-			}
-
-			if ( this.isMesh || this.isLine || this.isPoints ) {
-
-				object.geometry = serialize( meta.geometries, this.geometry );
-
-				var parameters = this.geometry.parameters;
-
-				if ( parameters !== undefined && parameters.shapes !== undefined ) {
-
-					var shapes = parameters.shapes;
-
-					if ( Array.isArray( shapes ) ) {
-
-						for ( var i = 0, l = shapes.length; i < l; i ++ ) {
-
-							var shape = shapes[ i ];
-
-							serialize( meta.shapes, shape );
-
-						}
-
-					} else {
-
-						serialize( meta.shapes, shapes );
-
-					}
-
-				}
-
-			}
-
-			if ( this.material !== undefined ) {
-
-				if ( Array.isArray( this.material ) ) {
-
-					var uuids = [];
-
-					for ( var i = 0, l = this.material.length; i < l; i ++ ) {
-
-						uuids.push( serialize( meta.materials, this.material[ i ] ) );
-
-					}
-
-					object.material = uuids;
-
-				} else {
-
-					object.material = serialize( meta.materials, this.material );
-
-				}
-
-			}
-
-			//
-
-			if ( this.children.length > 0 ) {
-
-				object.children = [];
-
-				for ( var i = 0; i < this.children.length; i ++ ) {
-
-					object.children.push( this.children[ i ].toJSON( meta ).object );
-
-				}
-
-			}
-
-			if ( isRootObject ) {
-
-				var geometries = extractFromCache( meta.geometries );
-				var materials = extractFromCache( meta.materials );
-				var textures = extractFromCache( meta.textures );
-				var images = extractFromCache( meta.images );
-				var shapes = extractFromCache( meta.shapes );
-
-				if ( geometries.length > 0 ) output.geometries = geometries;
-				if ( materials.length > 0 ) output.materials = materials;
-				if ( textures.length > 0 ) output.textures = textures;
-				if ( images.length > 0 ) output.images = images;
-				if ( shapes.length > 0 ) output.shapes = shapes;
-
-			}
-
-			output.object = object;
-
-			return output;
-
-			// extract data from the cache hash
-			// remove metadata on each item
-			// and return as array
-			function extractFromCache( cache ) {
-
-				var values = [];
-				for ( var key in cache ) {
-
-					var data = cache[ key ];
-					delete data.metadata;
-					values.push( data );
-
-				}
-				return values;
-
-			}
-
-		},
-
-		clone: function ( recursive ) {
-
-			return new this.constructor().copy( this, recursive );
-
-		},
-
-		copy: function ( source, recursive ) {
-
-			if ( recursive === undefined ) recursive = true;
-
-			this.name = source.name;
-
-			this.up.copy( source.up );
-
-			this.position.copy( source.position );
-			this.quaternion.copy( source.quaternion );
-			this.scale.copy( source.scale );
-
-			this.matrix.copy( source.matrix );
-			this.matrixWorld.copy( source.matrixWorld );
-
-			this.matrixAutoUpdate = source.matrixAutoUpdate;
-			this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;
-
-			this.layers.mask = source.layers.mask;
-			this.visible = source.visible;
-
-			this.castShadow = source.castShadow;
-			this.receiveShadow = source.receiveShadow;
-
-			this.frustumCulled = source.frustumCulled;
-			this.renderOrder = source.renderOrder;
-
-			this.userData = JSON.parse( JSON.stringify( source.userData ) );
-
-			if ( recursive === true ) {
-
-				for ( var i = 0; i < source.children.length; i ++ ) {
-
-					var child = source.children[ i ];
-					this.add( child.clone() );
-
-				}
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author kile / http://kile.stravaganza.org/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * @author bhouston / http://clara.io
-	 */
-
-	var geometryId = 0; // Geometry uses even numbers as Id
-
-	function Geometry() {
-
-		Object.defineProperty( this, 'id', { value: geometryId += 2 } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-		this.type = 'Geometry';
-
-		this.vertices = [];
-		this.colors = [];
-		this.faces = [];
-		this.faceVertexUvs = [[]];
-
-		this.morphTargets = [];
-		this.morphNormals = [];
-
-		this.skinWeights = [];
-		this.skinIndices = [];
-
-		this.lineDistances = [];
-
-		this.boundingBox = null;
-		this.boundingSphere = null;
-
-		// update flags
-
-		this.elementsNeedUpdate = false;
-		this.verticesNeedUpdate = false;
-		this.uvsNeedUpdate = false;
-		this.normalsNeedUpdate = false;
-		this.colorsNeedUpdate = false;
-		this.lineDistancesNeedUpdate = false;
-		this.groupsNeedUpdate = false;
-
-	}
-
-	Geometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: Geometry,
-
-		isGeometry: true,
-
-		applyMatrix: function ( matrix ) {
-
-			var normalMatrix = new Matrix3().getNormalMatrix( matrix );
-
-			for ( var i = 0, il = this.vertices.length; i < il; i ++ ) {
-
-				var vertex = this.vertices[ i ];
-				vertex.applyMatrix4( matrix );
-
-			}
-
-			for ( var i = 0, il = this.faces.length; i < il; i ++ ) {
-
-				var face = this.faces[ i ];
-				face.normal.applyMatrix3( normalMatrix ).normalize();
-
-				for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {
-
-					face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();
-
-				}
-
-			}
-
-			if ( this.boundingBox !== null ) {
-
-				this.computeBoundingBox();
-
-			}
-
-			if ( this.boundingSphere !== null ) {
-
-				this.computeBoundingSphere();
-
-			}
-
-			this.verticesNeedUpdate = true;
-			this.normalsNeedUpdate = true;
-
-			return this;
-
-		},
-
-		rotateX: function () {
-
-			// rotate geometry around world x-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateX( angle ) {
-
-				m1.makeRotationX( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateY: function () {
-
-			// rotate geometry around world y-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateY( angle ) {
-
-				m1.makeRotationY( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateZ: function () {
-
-			// rotate geometry around world z-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateZ( angle ) {
-
-				m1.makeRotationZ( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		translate: function () {
-
-			// translate geometry
-
-			var m1 = new Matrix4();
-
-			return function translate( x, y, z ) {
-
-				m1.makeTranslation( x, y, z );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		scale: function () {
-
-			// scale geometry
-
-			var m1 = new Matrix4();
-
-			return function scale( x, y, z ) {
-
-				m1.makeScale( x, y, z );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		lookAt: function () {
-
-			var obj = new Object3D();
-
-			return function lookAt( vector ) {
-
-				obj.lookAt( vector );
-
-				obj.updateMatrix();
-
-				this.applyMatrix( obj.matrix );
-
-			};
-
-		}(),
-
-		fromBufferGeometry: function ( geometry ) {
-
-			var scope = this;
-
-			var indices = geometry.index !== null ? geometry.index.array : undefined;
-			var attributes = geometry.attributes;
-
-			var positions = attributes.position.array;
-			var normals = attributes.normal !== undefined ? attributes.normal.array : undefined;
-			var colors = attributes.color !== undefined ? attributes.color.array : undefined;
-			var uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;
-			var uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;
-
-			if ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];
-
-			for ( var i = 0; i < positions.length; i += 3 ) {
-
-				scope.vertices.push( new Vector3().fromArray( positions, i ) );
-
-				if ( colors !== undefined ) {
-
-					scope.colors.push( new Color().fromArray( colors, i ) );
-
-				}
-
-			}
-
-			function addFace( a, b, c, materialIndex ) {
-
-				var vertexColors = ( colors === undefined ) ? [] : [
-					scope.colors[ a ].clone(),
-					scope.colors[ b ].clone(),
-					scope.colors[ c ].clone() ];
-
-				var vertexNormals = ( normals === undefined ) ? [] : [
-					new Vector3().fromArray( normals, a * 3 ),
-					new Vector3().fromArray( normals, b * 3 ),
-					new Vector3().fromArray( normals, c * 3 )
-				];
-
-				var face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex );
-
-				scope.faces.push( face );
-
-				if ( uvs !== undefined ) {
-
-					scope.faceVertexUvs[ 0 ].push( [
-						new Vector2().fromArray( uvs, a * 2 ),
-						new Vector2().fromArray( uvs, b * 2 ),
-						new Vector2().fromArray( uvs, c * 2 )
-					] );
-
-				}
-
-				if ( uvs2 !== undefined ) {
-
-					scope.faceVertexUvs[ 1 ].push( [
-						new Vector2().fromArray( uvs2, a * 2 ),
-						new Vector2().fromArray( uvs2, b * 2 ),
-						new Vector2().fromArray( uvs2, c * 2 )
-					] );
-
-				}
-
-			}
-
-			var groups = geometry.groups;
-
-			if ( groups.length > 0 ) {
-
-				for ( var i = 0; i < groups.length; i ++ ) {
-
-					var group = groups[ i ];
-
-					var start = group.start;
-					var count = group.count;
-
-					for ( var j = start, jl = start + count; j < jl; j += 3 ) {
-
-						if ( indices !== undefined ) {
-
-							addFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex );
-
-						} else {
-
-							addFace( j, j + 1, j + 2, group.materialIndex );
-
-						}
-
-					}
-
-				}
-
-			} else {
-
-				if ( indices !== undefined ) {
-
-					for ( var i = 0; i < indices.length; i += 3 ) {
-
-						addFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );
-
-					}
-
-				} else {
-
-					for ( var i = 0; i < positions.length / 3; i += 3 ) {
-
-						addFace( i, i + 1, i + 2 );
-
-					}
-
-				}
-
-			}
-
-			this.computeFaceNormals();
-
-			if ( geometry.boundingBox !== null ) {
-
-				this.boundingBox = geometry.boundingBox.clone();
-
-			}
-
-			if ( geometry.boundingSphere !== null ) {
-
-				this.boundingSphere = geometry.boundingSphere.clone();
-
-			}
-
-			return this;
-
-		},
-
-		center: function () {
-
-			var offset = new Vector3();
-
-			return function center() {
-
-				this.computeBoundingBox();
-
-				this.boundingBox.getCenter( offset ).negate();
-
-				this.translate( offset.x, offset.y, offset.z );
-
-				return this;
-
-			};
-
-		}(),
-
-		normalize: function () {
-
-			this.computeBoundingSphere();
-
-			var center = this.boundingSphere.center;
-			var radius = this.boundingSphere.radius;
-
-			var s = radius === 0 ? 1 : 1.0 / radius;
-
-			var matrix = new Matrix4();
-			matrix.set(
-				s, 0, 0, - s * center.x,
-				0, s, 0, - s * center.y,
-				0, 0, s, - s * center.z,
-				0, 0, 0, 1
-			);
-
-			this.applyMatrix( matrix );
-
-			return this;
-
-		},
-
-		computeFaceNormals: function () {
-
-			var cb = new Vector3(), ab = new Vector3();
-
-			for ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				var face = this.faces[ f ];
-
-				var vA = this.vertices[ face.a ];
-				var vB = this.vertices[ face.b ];
-				var vC = this.vertices[ face.c ];
-
-				cb.subVectors( vC, vB );
-				ab.subVectors( vA, vB );
-				cb.cross( ab );
-
-				cb.normalize();
-
-				face.normal.copy( cb );
-
-			}
-
-		},
-
-		computeVertexNormals: function ( areaWeighted ) {
-
-			if ( areaWeighted === undefined ) areaWeighted = true;
-
-			var v, vl, f, fl, face, vertices;
-
-			vertices = new Array( this.vertices.length );
-
-			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {
-
-				vertices[ v ] = new Vector3();
-
-			}
-
-			if ( areaWeighted ) {
-
-				// vertex normals weighted by triangle areas
-				// http://www.iquilezles.org/www/articles/normals/normals.htm
-
-				var vA, vB, vC;
-				var cb = new Vector3(), ab = new Vector3();
-
-				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-					face = this.faces[ f ];
-
-					vA = this.vertices[ face.a ];
-					vB = this.vertices[ face.b ];
-					vC = this.vertices[ face.c ];
-
-					cb.subVectors( vC, vB );
-					ab.subVectors( vA, vB );
-					cb.cross( ab );
-
-					vertices[ face.a ].add( cb );
-					vertices[ face.b ].add( cb );
-					vertices[ face.c ].add( cb );
-
-				}
-
-			} else {
-
-				this.computeFaceNormals();
-
-				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-					face = this.faces[ f ];
-
-					vertices[ face.a ].add( face.normal );
-					vertices[ face.b ].add( face.normal );
-					vertices[ face.c ].add( face.normal );
-
-				}
-
-			}
-
-			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {
-
-				vertices[ v ].normalize();
-
-			}
-
-			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				face = this.faces[ f ];
-
-				var vertexNormals = face.vertexNormals;
-
-				if ( vertexNormals.length === 3 ) {
-
-					vertexNormals[ 0 ].copy( vertices[ face.a ] );
-					vertexNormals[ 1 ].copy( vertices[ face.b ] );
-					vertexNormals[ 2 ].copy( vertices[ face.c ] );
-
-				} else {
-
-					vertexNormals[ 0 ] = vertices[ face.a ].clone();
-					vertexNormals[ 1 ] = vertices[ face.b ].clone();
-					vertexNormals[ 2 ] = vertices[ face.c ].clone();
-
-				}
-
-			}
-
-			if ( this.faces.length > 0 ) {
-
-				this.normalsNeedUpdate = true;
-
-			}
-
-		},
-
-		computeFlatVertexNormals: function () {
-
-			var f, fl, face;
-
-			this.computeFaceNormals();
-
-			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				face = this.faces[ f ];
-
-				var vertexNormals = face.vertexNormals;
-
-				if ( vertexNormals.length === 3 ) {
-
-					vertexNormals[ 0 ].copy( face.normal );
-					vertexNormals[ 1 ].copy( face.normal );
-					vertexNormals[ 2 ].copy( face.normal );
-
-				} else {
-
-					vertexNormals[ 0 ] = face.normal.clone();
-					vertexNormals[ 1 ] = face.normal.clone();
-					vertexNormals[ 2 ] = face.normal.clone();
-
-				}
-
-			}
-
-			if ( this.faces.length > 0 ) {
-
-				this.normalsNeedUpdate = true;
-
-			}
-
-		},
-
-		computeMorphNormals: function () {
-
-			var i, il, f, fl, face;
-
-			// save original normals
-			// - create temp variables on first access
-			//   otherwise just copy (for faster repeated calls)
-
-			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				face = this.faces[ f ];
-
-				if ( ! face.__originalFaceNormal ) {
-
-					face.__originalFaceNormal = face.normal.clone();
-
-				} else {
-
-					face.__originalFaceNormal.copy( face.normal );
-
-				}
-
-				if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];
-
-				for ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {
-
-					if ( ! face.__originalVertexNormals[ i ] ) {
-
-						face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();
-
-					} else {
-
-						face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );
-
-					}
-
-				}
-
-			}
-
-			// use temp geometry to compute face and vertex normals for each morph
-
-			var tmpGeo = new Geometry();
-			tmpGeo.faces = this.faces;
-
-			for ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {
-
-				// create on first access
-
-				if ( ! this.morphNormals[ i ] ) {
-
-					this.morphNormals[ i ] = {};
-					this.morphNormals[ i ].faceNormals = [];
-					this.morphNormals[ i ].vertexNormals = [];
-
-					var dstNormalsFace = this.morphNormals[ i ].faceNormals;
-					var dstNormalsVertex = this.morphNormals[ i ].vertexNormals;
-
-					var faceNormal, vertexNormals;
-
-					for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-						faceNormal = new Vector3();
-						vertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() };
-
-						dstNormalsFace.push( faceNormal );
-						dstNormalsVertex.push( vertexNormals );
-
-					}
-
-				}
-
-				var morphNormals = this.morphNormals[ i ];
-
-				// set vertices to morph target
-
-				tmpGeo.vertices = this.morphTargets[ i ].vertices;
-
-				// compute morph normals
-
-				tmpGeo.computeFaceNormals();
-				tmpGeo.computeVertexNormals();
-
-				// store morph normals
-
-				var faceNormal, vertexNormals;
-
-				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-					face = this.faces[ f ];
-
-					faceNormal = morphNormals.faceNormals[ f ];
-					vertexNormals = morphNormals.vertexNormals[ f ];
-
-					faceNormal.copy( face.normal );
-
-					vertexNormals.a.copy( face.vertexNormals[ 0 ] );
-					vertexNormals.b.copy( face.vertexNormals[ 1 ] );
-					vertexNormals.c.copy( face.vertexNormals[ 2 ] );
-
-				}
-
-			}
-
-			// restore original normals
-
-			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				face = this.faces[ f ];
-
-				face.normal = face.__originalFaceNormal;
-				face.vertexNormals = face.__originalVertexNormals;
-
-			}
-
-		},
-
-		computeBoundingBox: function () {
-
-			if ( this.boundingBox === null ) {
-
-				this.boundingBox = new Box3();
-
-			}
-
-			this.boundingBox.setFromPoints( this.vertices );
-
-		},
-
-		computeBoundingSphere: function () {
-
-			if ( this.boundingSphere === null ) {
-
-				this.boundingSphere = new Sphere();
-
-			}
-
-			this.boundingSphere.setFromPoints( this.vertices );
-
-		},
-
-		merge: function ( geometry, matrix, materialIndexOffset ) {
-
-			if ( ! ( geometry && geometry.isGeometry ) ) {
-
-				console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );
-				return;
-
-			}
-
-			var normalMatrix,
-				vertexOffset = this.vertices.length,
-				vertices1 = this.vertices,
-				vertices2 = geometry.vertices,
-				faces1 = this.faces,
-				faces2 = geometry.faces,
-				uvs1 = this.faceVertexUvs[ 0 ],
-				uvs2 = geometry.faceVertexUvs[ 0 ],
-				colors1 = this.colors,
-				colors2 = geometry.colors;
-
-			if ( materialIndexOffset === undefined ) materialIndexOffset = 0;
-
-			if ( matrix !== undefined ) {
-
-				normalMatrix = new Matrix3().getNormalMatrix( matrix );
-
-			}
-
-			// vertices
-
-			for ( var i = 0, il = vertices2.length; i < il; i ++ ) {
-
-				var vertex = vertices2[ i ];
-
-				var vertexCopy = vertex.clone();
-
-				if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );
-
-				vertices1.push( vertexCopy );
-
-			}
-
-			// colors
-
-			for ( var i = 0, il = colors2.length; i < il; i ++ ) {
-
-				colors1.push( colors2[ i ].clone() );
-
-			}
-
-			// faces
-
-			for ( i = 0, il = faces2.length; i < il; i ++ ) {
-
-				var face = faces2[ i ], faceCopy, normal, color,
-					faceVertexNormals = face.vertexNormals,
-					faceVertexColors = face.vertexColors;
-
-				faceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );
-				faceCopy.normal.copy( face.normal );
-
-				if ( normalMatrix !== undefined ) {
-
-					faceCopy.normal.applyMatrix3( normalMatrix ).normalize();
-
-				}
-
-				for ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {
-
-					normal = faceVertexNormals[ j ].clone();
-
-					if ( normalMatrix !== undefined ) {
-
-						normal.applyMatrix3( normalMatrix ).normalize();
-
-					}
-
-					faceCopy.vertexNormals.push( normal );
-
-				}
-
-				faceCopy.color.copy( face.color );
-
-				for ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {
-
-					color = faceVertexColors[ j ];
-					faceCopy.vertexColors.push( color.clone() );
-
-				}
-
-				faceCopy.materialIndex = face.materialIndex + materialIndexOffset;
-
-				faces1.push( faceCopy );
-
-			}
-
-			// uvs
-
-			for ( i = 0, il = uvs2.length; i < il; i ++ ) {
-
-				var uv = uvs2[ i ], uvCopy = [];
-
-				if ( uv === undefined ) {
-
-					continue;
-
-				}
-
-				for ( var j = 0, jl = uv.length; j < jl; j ++ ) {
-
-					uvCopy.push( uv[ j ].clone() );
-
-				}
-
-				uvs1.push( uvCopy );
-
-			}
-
-		},
-
-		mergeMesh: function ( mesh ) {
-
-			if ( ! ( mesh && mesh.isMesh ) ) {
-
-				console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );
-				return;
-
-			}
-
-			if ( mesh.matrixAutoUpdate ) mesh.updateMatrix();
-
-			this.merge( mesh.geometry, mesh.matrix );
-
-		},
-
-		/*
-		 * Checks for duplicate vertices with hashmap.
-		 * Duplicated vertices are removed
-		 * and faces' vertices are updated.
-		 */
-
-		mergeVertices: function () {
-
-			var verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)
-			var unique = [], changes = [];
-
-			var v, key;
-			var precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001
-			var precision = Math.pow( 10, precisionPoints );
-			var i, il, face;
-			var indices, j, jl;
-
-			for ( i = 0, il = this.vertices.length; i < il; i ++ ) {
-
-				v = this.vertices[ i ];
-				key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );
-
-				if ( verticesMap[ key ] === undefined ) {
-
-					verticesMap[ key ] = i;
-					unique.push( this.vertices[ i ] );
-					changes[ i ] = unique.length - 1;
-
-				} else {
-
-					//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
-					changes[ i ] = changes[ verticesMap[ key ] ];
-
-				}
-
-			}
-
-
-			// if faces are completely degenerate after merging vertices, we
-			// have to remove them from the geometry.
-			var faceIndicesToRemove = [];
-
-			for ( i = 0, il = this.faces.length; i < il; i ++ ) {
-
-				face = this.faces[ i ];
-
-				face.a = changes[ face.a ];
-				face.b = changes[ face.b ];
-				face.c = changes[ face.c ];
-
-				indices = [ face.a, face.b, face.c ];
-
-				// if any duplicate vertices are found in a Face3
-				// we have to remove the face as nothing can be saved
-				for ( var n = 0; n < 3; n ++ ) {
-
-					if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {
-
-						faceIndicesToRemove.push( i );
-						break;
-
-					}
-
-				}
-
-			}
-
-			for ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {
-
-				var idx = faceIndicesToRemove[ i ];
-
-				this.faces.splice( idx, 1 );
-
-				for ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {
-
-					this.faceVertexUvs[ j ].splice( idx, 1 );
-
-				}
-
-			}
-
-			// Use unique set of vertices
-
-			var diff = this.vertices.length - unique.length;
-			this.vertices = unique;
-			return diff;
-
-		},
-
-		setFromPoints: function ( points ) {
-
-			this.vertices = [];
-
-			for ( var i = 0, l = points.length; i < l; i ++ ) {
-
-				var point = points[ i ];
-				this.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );
-
-			}
-
-			return this;
-
-		},
-
-		sortFacesByMaterialIndex: function () {
-
-			var faces = this.faces;
-			var length = faces.length;
-
-			// tag faces
-
-			for ( var i = 0; i < length; i ++ ) {
-
-				faces[ i ]._id = i;
-
-			}
-
-			// sort faces
-
-			function materialIndexSort( a, b ) {
-
-				return a.materialIndex - b.materialIndex;
-
-			}
-
-			faces.sort( materialIndexSort );
-
-			// sort uvs
-
-			var uvs1 = this.faceVertexUvs[ 0 ];
-			var uvs2 = this.faceVertexUvs[ 1 ];
-
-			var newUvs1, newUvs2;
-
-			if ( uvs1 && uvs1.length === length ) newUvs1 = [];
-			if ( uvs2 && uvs2.length === length ) newUvs2 = [];
-
-			for ( var i = 0; i < length; i ++ ) {
-
-				var id = faces[ i ]._id;
-
-				if ( newUvs1 ) newUvs1.push( uvs1[ id ] );
-				if ( newUvs2 ) newUvs2.push( uvs2[ id ] );
-
-			}
-
-			if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;
-			if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;
-
-		},
-
-		toJSON: function () {
-
-			var data = {
-				metadata: {
-					version: 4.5,
-					type: 'Geometry',
-					generator: 'Geometry.toJSON'
-				}
-			};
-
-			// standard Geometry serialization
-
-			data.uuid = this.uuid;
-			data.type = this.type;
-			if ( this.name !== '' ) data.name = this.name;
-
-			if ( this.parameters !== undefined ) {
-
-				var parameters = this.parameters;
-
-				for ( var key in parameters ) {
-
-					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];
-
-				}
-
-				return data;
-
-			}
-
-			var vertices = [];
-
-			for ( var i = 0; i < this.vertices.length; i ++ ) {
-
-				var vertex = this.vertices[ i ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-			}
-
-			var faces = [];
-			var normals = [];
-			var normalsHash = {};
-			var colors = [];
-			var colorsHash = {};
-			var uvs = [];
-			var uvsHash = {};
-
-			for ( var i = 0; i < this.faces.length; i ++ ) {
-
-				var face = this.faces[ i ];
-
-				var hasMaterial = true;
-				var hasFaceUv = false; // deprecated
-				var hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;
-				var hasFaceNormal = face.normal.length() > 0;
-				var hasFaceVertexNormal = face.vertexNormals.length > 0;
-				var hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;
-				var hasFaceVertexColor = face.vertexColors.length > 0;
-
-				var faceType = 0;
-
-				faceType = setBit( faceType, 0, 0 ); // isQuad
-				faceType = setBit( faceType, 1, hasMaterial );
-				faceType = setBit( faceType, 2, hasFaceUv );
-				faceType = setBit( faceType, 3, hasFaceVertexUv );
-				faceType = setBit( faceType, 4, hasFaceNormal );
-				faceType = setBit( faceType, 5, hasFaceVertexNormal );
-				faceType = setBit( faceType, 6, hasFaceColor );
-				faceType = setBit( faceType, 7, hasFaceVertexColor );
-
-				faces.push( faceType );
-				faces.push( face.a, face.b, face.c );
-				faces.push( face.materialIndex );
-
-				if ( hasFaceVertexUv ) {
-
-					var faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];
-
-					faces.push(
-						getUvIndex( faceVertexUvs[ 0 ] ),
-						getUvIndex( faceVertexUvs[ 1 ] ),
-						getUvIndex( faceVertexUvs[ 2 ] )
-					);
-
-				}
-
-				if ( hasFaceNormal ) {
-
-					faces.push( getNormalIndex( face.normal ) );
-
-				}
-
-				if ( hasFaceVertexNormal ) {
-
-					var vertexNormals = face.vertexNormals;
-
-					faces.push(
-						getNormalIndex( vertexNormals[ 0 ] ),
-						getNormalIndex( vertexNormals[ 1 ] ),
-						getNormalIndex( vertexNormals[ 2 ] )
-					);
-
-				}
-
-				if ( hasFaceColor ) {
-
-					faces.push( getColorIndex( face.color ) );
-
-				}
-
-				if ( hasFaceVertexColor ) {
-
-					var vertexColors = face.vertexColors;
-
-					faces.push(
-						getColorIndex( vertexColors[ 0 ] ),
-						getColorIndex( vertexColors[ 1 ] ),
-						getColorIndex( vertexColors[ 2 ] )
-					);
-
-				}
-
-			}
-
-			function setBit( value, position, enabled ) {
-
-				return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );
-
-			}
-
-			function getNormalIndex( normal ) {
-
-				var hash = normal.x.toString() + normal.y.toString() + normal.z.toString();
-
-				if ( normalsHash[ hash ] !== undefined ) {
-
-					return normalsHash[ hash ];
-
-				}
-
-				normalsHash[ hash ] = normals.length / 3;
-				normals.push( normal.x, normal.y, normal.z );
-
-				return normalsHash[ hash ];
-
-			}
-
-			function getColorIndex( color ) {
-
-				var hash = color.r.toString() + color.g.toString() + color.b.toString();
-
-				if ( colorsHash[ hash ] !== undefined ) {
-
-					return colorsHash[ hash ];
-
-				}
-
-				colorsHash[ hash ] = colors.length;
-				colors.push( color.getHex() );
-
-				return colorsHash[ hash ];
-
-			}
-
-			function getUvIndex( uv ) {
-
-				var hash = uv.x.toString() + uv.y.toString();
-
-				if ( uvsHash[ hash ] !== undefined ) {
-
-					return uvsHash[ hash ];
-
-				}
-
-				uvsHash[ hash ] = uvs.length / 2;
-				uvs.push( uv.x, uv.y );
-
-				return uvsHash[ hash ];
-
-			}
-
-			data.data = {};
-
-			data.data.vertices = vertices;
-			data.data.normals = normals;
-			if ( colors.length > 0 ) data.data.colors = colors;
-			if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility
-			data.data.faces = faces;
-
-			return data;
-
-		},
-
-		clone: function () {
-
-			/*
-			 // Handle primitives
-
-			 var parameters = this.parameters;
-
-			 if ( parameters !== undefined ) {
-
-			 var values = [];
-
-			 for ( var key in parameters ) {
-
-			 values.push( parameters[ key ] );
-
-			 }
-
-			 var geometry = Object.create( this.constructor.prototype );
-			 this.constructor.apply( geometry, values );
-			 return geometry;
-
-			 }
-
-			 return new this.constructor().copy( this );
-			 */
-
-			return new Geometry().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			var i, il, j, jl, k, kl;
-
-			// reset
-
-			this.vertices = [];
-			this.colors = [];
-			this.faces = [];
-			this.faceVertexUvs = [[]];
-			this.morphTargets = [];
-			this.morphNormals = [];
-			this.skinWeights = [];
-			this.skinIndices = [];
-			this.lineDistances = [];
-			this.boundingBox = null;
-			this.boundingSphere = null;
-
-			// name
-
-			this.name = source.name;
-
-			// vertices
-
-			var vertices = source.vertices;
-
-			for ( i = 0, il = vertices.length; i < il; i ++ ) {
-
-				this.vertices.push( vertices[ i ].clone() );
-
-			}
-
-			// colors
-
-			var colors = source.colors;
-
-			for ( i = 0, il = colors.length; i < il; i ++ ) {
-
-				this.colors.push( colors[ i ].clone() );
-
-			}
-
-			// faces
-
-			var faces = source.faces;
-
-			for ( i = 0, il = faces.length; i < il; i ++ ) {
-
-				this.faces.push( faces[ i ].clone() );
-
-			}
-
-			// face vertex uvs
-
-			for ( i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {
-
-				var faceVertexUvs = source.faceVertexUvs[ i ];
-
-				if ( this.faceVertexUvs[ i ] === undefined ) {
-
-					this.faceVertexUvs[ i ] = [];
-
-				}
-
-				for ( j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {
-
-					var uvs = faceVertexUvs[ j ], uvsCopy = [];
-
-					for ( k = 0, kl = uvs.length; k < kl; k ++ ) {
-
-						var uv = uvs[ k ];
-
-						uvsCopy.push( uv.clone() );
-
-					}
-
-					this.faceVertexUvs[ i ].push( uvsCopy );
-
-				}
-
-			}
-
-			// morph targets
-
-			var morphTargets = source.morphTargets;
-
-			for ( i = 0, il = morphTargets.length; i < il; i ++ ) {
-
-				var morphTarget = {};
-				morphTarget.name = morphTargets[ i ].name;
-
-				// vertices
-
-				if ( morphTargets[ i ].vertices !== undefined ) {
-
-					morphTarget.vertices = [];
-
-					for ( j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) {
-
-						morphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() );
-
-					}
-
-				}
-
-				// normals
-
-				if ( morphTargets[ i ].normals !== undefined ) {
-
-					morphTarget.normals = [];
-
-					for ( j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) {
-
-						morphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() );
-
-					}
-
-				}
-
-				this.morphTargets.push( morphTarget );
-
-			}
-
-			// morph normals
-
-			var morphNormals = source.morphNormals;
-
-			for ( i = 0, il = morphNormals.length; i < il; i ++ ) {
-
-				var morphNormal = {};
-
-				// vertex normals
-
-				if ( morphNormals[ i ].vertexNormals !== undefined ) {
-
-					morphNormal.vertexNormals = [];
-
-					for ( j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) {
-
-						var srcVertexNormal = morphNormals[ i ].vertexNormals[ j ];
-						var destVertexNormal = {};
-
-						destVertexNormal.a = srcVertexNormal.a.clone();
-						destVertexNormal.b = srcVertexNormal.b.clone();
-						destVertexNormal.c = srcVertexNormal.c.clone();
-
-						morphNormal.vertexNormals.push( destVertexNormal );
-
-					}
-
-				}
-
-				// face normals
-
-				if ( morphNormals[ i ].faceNormals !== undefined ) {
-
-					morphNormal.faceNormals = [];
-
-					for ( j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) {
-
-						morphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() );
-
-					}
-
-				}
-
-				this.morphNormals.push( morphNormal );
-
-			}
-
-			// skin weights
-
-			var skinWeights = source.skinWeights;
-
-			for ( i = 0, il = skinWeights.length; i < il; i ++ ) {
-
-				this.skinWeights.push( skinWeights[ i ].clone() );
-
-			}
-
-			// skin indices
-
-			var skinIndices = source.skinIndices;
-
-			for ( i = 0, il = skinIndices.length; i < il; i ++ ) {
-
-				this.skinIndices.push( skinIndices[ i ].clone() );
-
-			}
-
-			// line distances
-
-			var lineDistances = source.lineDistances;
-
-			for ( i = 0, il = lineDistances.length; i < il; i ++ ) {
-
-				this.lineDistances.push( lineDistances[ i ] );
-
-			}
-
-			// bounding box
-
-			var boundingBox = source.boundingBox;
-
-			if ( boundingBox !== null ) {
-
-				this.boundingBox = boundingBox.clone();
-
-			}
-
-			// bounding sphere
-
-			var boundingSphere = source.boundingSphere;
-
-			if ( boundingSphere !== null ) {
-
-				this.boundingSphere = boundingSphere.clone();
-
-			}
-
-			// update flags
-
-			this.elementsNeedUpdate = source.elementsNeedUpdate;
-			this.verticesNeedUpdate = source.verticesNeedUpdate;
-			this.uvsNeedUpdate = source.uvsNeedUpdate;
-			this.normalsNeedUpdate = source.normalsNeedUpdate;
-			this.colorsNeedUpdate = source.colorsNeedUpdate;
-			this.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate;
-			this.groupsNeedUpdate = source.groupsNeedUpdate;
-
-			return this;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function BufferAttribute( array, itemSize, normalized ) {
-
-		if ( Array.isArray( array ) ) {
-
-			throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
-
-		}
-
-		this.name = '';
-
-		this.array = array;
-		this.itemSize = itemSize;
-		this.count = array !== undefined ? array.length / itemSize : 0;
-		this.normalized = normalized === true;
-
-		this.dynamic = false;
-		this.updateRange = { offset: 0, count: - 1 };
-
-		this.version = 0;
-
-	}
-
-	Object.defineProperty( BufferAttribute.prototype, 'needsUpdate', {
-
-		set: function ( value ) {
-
-			if ( value === true ) this.version ++;
-
-		}
-
-	} );
-
-	Object.assign( BufferAttribute.prototype, {
-
-		isBufferAttribute: true,
-
-		onUploadCallback: function () {},
-
-		setArray: function ( array ) {
-
-			if ( Array.isArray( array ) ) {
-
-				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
-
-			}
-
-			this.count = array !== undefined ? array.length / this.itemSize : 0;
-			this.array = array;
-
-			return this;
-
-		},
-
-		setDynamic: function ( value ) {
-
-			this.dynamic = value;
-
-			return this;
-
-		},
-
-		copy: function ( source ) {
-
-			this.name = source.name;
-			this.array = new source.array.constructor( source.array );
-			this.itemSize = source.itemSize;
-			this.count = source.count;
-			this.normalized = source.normalized;
-
-			this.dynamic = source.dynamic;
-
-			return this;
-
-		},
-
-		copyAt: function ( index1, attribute, index2 ) {
-
-			index1 *= this.itemSize;
-			index2 *= attribute.itemSize;
-
-			for ( var i = 0, l = this.itemSize; i < l; i ++ ) {
-
-				this.array[ index1 + i ] = attribute.array[ index2 + i ];
-
-			}
-
-			return this;
-
-		},
-
-		copyArray: function ( array ) {
-
-			this.array.set( array );
-
-			return this;
-
-		},
-
-		copyColorsArray: function ( colors ) {
-
-			var array = this.array, offset = 0;
-
-			for ( var i = 0, l = colors.length; i < l; i ++ ) {
-
-				var color = colors[ i ];
-
-				if ( color === undefined ) {
-
-					console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );
-					color = new Color();
-
-				}
-
-				array[ offset ++ ] = color.r;
-				array[ offset ++ ] = color.g;
-				array[ offset ++ ] = color.b;
-
-			}
-
-			return this;
-
-		},
-
-		copyVector2sArray: function ( vectors ) {
-
-			var array = this.array, offset = 0;
-
-			for ( var i = 0, l = vectors.length; i < l; i ++ ) {
-
-				var vector = vectors[ i ];
-
-				if ( vector === undefined ) {
-
-					console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );
-					vector = new Vector2();
-
-				}
-
-				array[ offset ++ ] = vector.x;
-				array[ offset ++ ] = vector.y;
-
-			}
-
-			return this;
-
-		},
-
-		copyVector3sArray: function ( vectors ) {
-
-			var array = this.array, offset = 0;
-
-			for ( var i = 0, l = vectors.length; i < l; i ++ ) {
-
-				var vector = vectors[ i ];
-
-				if ( vector === undefined ) {
-
-					console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );
-					vector = new Vector3();
-
-				}
-
-				array[ offset ++ ] = vector.x;
-				array[ offset ++ ] = vector.y;
-				array[ offset ++ ] = vector.z;
-
-			}
-
-			return this;
-
-		},
-
-		copyVector4sArray: function ( vectors ) {
-
-			var array = this.array, offset = 0;
-
-			for ( var i = 0, l = vectors.length; i < l; i ++ ) {
-
-				var vector = vectors[ i ];
-
-				if ( vector === undefined ) {
-
-					console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );
-					vector = new Vector4();
-
-				}
-
-				array[ offset ++ ] = vector.x;
-				array[ offset ++ ] = vector.y;
-				array[ offset ++ ] = vector.z;
-				array[ offset ++ ] = vector.w;
-
-			}
-
-			return this;
-
-		},
-
-		set: function ( value, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.array.set( value, offset );
-
-			return this;
-
-		},
-
-		getX: function ( index ) {
-
-			return this.array[ index * this.itemSize ];
-
-		},
-
-		setX: function ( index, x ) {
-
-			this.array[ index * this.itemSize ] = x;
-
-			return this;
-
-		},
-
-		getY: function ( index ) {
-
-			return this.array[ index * this.itemSize + 1 ];
-
-		},
-
-		setY: function ( index, y ) {
-
-			this.array[ index * this.itemSize + 1 ] = y;
-
-			return this;
-
-		},
-
-		getZ: function ( index ) {
-
-			return this.array[ index * this.itemSize + 2 ];
-
-		},
-
-		setZ: function ( index, z ) {
-
-			this.array[ index * this.itemSize + 2 ] = z;
-
-			return this;
-
-		},
-
-		getW: function ( index ) {
-
-			return this.array[ index * this.itemSize + 3 ];
-
-		},
-
-		setW: function ( index, w ) {
-
-			this.array[ index * this.itemSize + 3 ] = w;
-
-			return this;
-
-		},
-
-		setXY: function ( index, x, y ) {
-
-			index *= this.itemSize;
-
-			this.array[ index + 0 ] = x;
-			this.array[ index + 1 ] = y;
-
-			return this;
-
-		},
-
-		setXYZ: function ( index, x, y, z ) {
-
-			index *= this.itemSize;
-
-			this.array[ index + 0 ] = x;
-			this.array[ index + 1 ] = y;
-			this.array[ index + 2 ] = z;
-
-			return this;
-
-		},
-
-		setXYZW: function ( index, x, y, z, w ) {
-
-			index *= this.itemSize;
-
-			this.array[ index + 0 ] = x;
-			this.array[ index + 1 ] = y;
-			this.array[ index + 2 ] = z;
-			this.array[ index + 3 ] = w;
-
-			return this;
-
-		},
-
-		onUpload: function ( callback ) {
-
-			this.onUploadCallback = callback;
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.array, this.itemSize ).copy( this );
-
-		},
-
-		toJSON: function () {
-
-			return {
-				itemSize: this.itemSize,
-				type: this.array.constructor.name,
-				array: Array.prototype.slice.call( this.array ),
-				normalized: this.normalized
-			};
-
-		}
-
-	} );
-
-	//
-
-	function Int8BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Int8Array( array ), itemSize, normalized );
-
-	}
-
-	Int8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Int8BufferAttribute.prototype.constructor = Int8BufferAttribute;
-
-
-	function Uint8BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Uint8Array( array ), itemSize, normalized );
-
-	}
-
-	Uint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;
-
-
-	function Uint8ClampedBufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize, normalized );
-
-	}
-
-	Uint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;
-
-
-	function Int16BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Int16Array( array ), itemSize, normalized );
-
-	}
-
-	Int16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Int16BufferAttribute.prototype.constructor = Int16BufferAttribute;
-
-
-	function Uint16BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized );
-
-	}
-
-	Uint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;
-
-
-	function Int32BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Int32Array( array ), itemSize, normalized );
-
-	}
-
-	Int32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Int32BufferAttribute.prototype.constructor = Int32BufferAttribute;
-
-
-	function Uint32BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Uint32Array( array ), itemSize, normalized );
-
-	}
-
-	Uint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;
-
-
-	function Float32BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Float32Array( array ), itemSize, normalized );
-
-	}
-
-	Float32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Float32BufferAttribute.prototype.constructor = Float32BufferAttribute;
-
-
-	function Float64BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Float64Array( array ), itemSize, normalized );
-
-	}
-
-	Float64BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Float64BufferAttribute.prototype.constructor = Float64BufferAttribute;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function DirectGeometry() {
-
-		this.vertices = [];
-		this.normals = [];
-		this.colors = [];
-		this.uvs = [];
-		this.uvs2 = [];
-
-		this.groups = [];
-
-		this.morphTargets = {};
-
-		this.skinWeights = [];
-		this.skinIndices = [];
-
-		// this.lineDistances = [];
-
-		this.boundingBox = null;
-		this.boundingSphere = null;
-
-		// update flags
-
-		this.verticesNeedUpdate = false;
-		this.normalsNeedUpdate = false;
-		this.colorsNeedUpdate = false;
-		this.uvsNeedUpdate = false;
-		this.groupsNeedUpdate = false;
-
-	}
-
-	Object.assign( DirectGeometry.prototype, {
-
-		computeGroups: function ( geometry ) {
-
-			var group;
-			var groups = [];
-			var materialIndex = undefined;
-
-			var faces = geometry.faces;
-
-			for ( var i = 0; i < faces.length; i ++ ) {
-
-				var face = faces[ i ];
-
-				// materials
-
-				if ( face.materialIndex !== materialIndex ) {
-
-					materialIndex = face.materialIndex;
-
-					if ( group !== undefined ) {
-
-						group.count = ( i * 3 ) - group.start;
-						groups.push( group );
-
-					}
-
-					group = {
-						start: i * 3,
-						materialIndex: materialIndex
-					};
-
-				}
-
-			}
-
-			if ( group !== undefined ) {
-
-				group.count = ( i * 3 ) - group.start;
-				groups.push( group );
-
-			}
-
-			this.groups = groups;
-
-		},
-
-		fromGeometry: function ( geometry ) {
-
-			var faces = geometry.faces;
-			var vertices = geometry.vertices;
-			var faceVertexUvs = geometry.faceVertexUvs;
-
-			var hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;
-			var hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;
-
-			// morphs
-
-			var morphTargets = geometry.morphTargets;
-			var morphTargetsLength = morphTargets.length;
-
-			var morphTargetsPosition;
-
-			if ( morphTargetsLength > 0 ) {
-
-				morphTargetsPosition = [];
-
-				for ( var i = 0; i < morphTargetsLength; i ++ ) {
-
-					morphTargetsPosition[ i ] = {
-						name: morphTargets[ i ].name,
-					 	data: []
-					};
-
-				}
-
-				this.morphTargets.position = morphTargetsPosition;
-
-			}
-
-			var morphNormals = geometry.morphNormals;
-			var morphNormalsLength = morphNormals.length;
-
-			var morphTargetsNormal;
-
-			if ( morphNormalsLength > 0 ) {
-
-				morphTargetsNormal = [];
-
-				for ( var i = 0; i < morphNormalsLength; i ++ ) {
-
-					morphTargetsNormal[ i ] = {
-						name: morphNormals[ i ].name,
-					 	data: []
-					};
-
-				}
-
-				this.morphTargets.normal = morphTargetsNormal;
-
-			}
-
-			// skins
-
-			var skinIndices = geometry.skinIndices;
-			var skinWeights = geometry.skinWeights;
-
-			var hasSkinIndices = skinIndices.length === vertices.length;
-			var hasSkinWeights = skinWeights.length === vertices.length;
-
-			//
-
-			if ( vertices.length > 0 && faces.length === 0 ) {
-
-				console.error( 'THREE.DirectGeometry: Faceless geometries are not supported.' );
-
-			}
-
-			for ( var i = 0; i < faces.length; i ++ ) {
-
-				var face = faces[ i ];
-
-				this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );
-
-				var vertexNormals = face.vertexNormals;
-
-				if ( vertexNormals.length === 3 ) {
-
-					this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );
-
-				} else {
-
-					var normal = face.normal;
-
-					this.normals.push( normal, normal, normal );
-
-				}
-
-				var vertexColors = face.vertexColors;
-
-				if ( vertexColors.length === 3 ) {
-
-					this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );
-
-				} else {
-
-					var color = face.color;
-
-					this.colors.push( color, color, color );
-
-				}
-
-				if ( hasFaceVertexUv === true ) {
-
-					var vertexUvs = faceVertexUvs[ 0 ][ i ];
-
-					if ( vertexUvs !== undefined ) {
-
-						this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
-
-					} else {
-
-						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );
-
-						this.uvs.push( new Vector2(), new Vector2(), new Vector2() );
-
-					}
-
-				}
-
-				if ( hasFaceVertexUv2 === true ) {
-
-					var vertexUvs = faceVertexUvs[ 1 ][ i ];
-
-					if ( vertexUvs !== undefined ) {
-
-						this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
-
-					} else {
-
-						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );
-
-						this.uvs2.push( new Vector2(), new Vector2(), new Vector2() );
-
-					}
-
-				}
-
-				// morphs
-
-				for ( var j = 0; j < morphTargetsLength; j ++ ) {
-
-					var morphTarget = morphTargets[ j ].vertices;
-
-					morphTargetsPosition[ j ].data.push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );
-
-				}
-
-				for ( var j = 0; j < morphNormalsLength; j ++ ) {
-
-					var morphNormal = morphNormals[ j ].vertexNormals[ i ];
-
-					morphTargetsNormal[ j ].data.push( morphNormal.a, morphNormal.b, morphNormal.c );
-
-				}
-
-				// skins
-
-				if ( hasSkinIndices ) {
-
-					this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );
-
-				}
-
-				if ( hasSkinWeights ) {
-
-					this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );
-
-				}
-
-			}
-
-			this.computeGroups( geometry );
-
-			this.verticesNeedUpdate = geometry.verticesNeedUpdate;
-			this.normalsNeedUpdate = geometry.normalsNeedUpdate;
-			this.colorsNeedUpdate = geometry.colorsNeedUpdate;
-			this.uvsNeedUpdate = geometry.uvsNeedUpdate;
-			this.groupsNeedUpdate = geometry.groupsNeedUpdate;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function arrayMax( array ) {
-
-		if ( array.length === 0 ) return - Infinity;
-
-		var max = array[ 0 ];
-
-		for ( var i = 1, l = array.length; i < l; ++ i ) {
-
-			if ( array[ i ] > max ) max = array[ i ];
-
-		}
-
-		return max;
-
-	}
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var bufferGeometryId = 1; // BufferGeometry uses odd numbers as Id
-
-	function BufferGeometry() {
-
-		Object.defineProperty( this, 'id', { value: bufferGeometryId += 2 } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-		this.type = 'BufferGeometry';
-
-		this.index = null;
-		this.attributes = {};
-
-		this.morphAttributes = {};
-
-		this.groups = [];
-
-		this.boundingBox = null;
-		this.boundingSphere = null;
-
-		this.drawRange = { start: 0, count: Infinity };
-
-		this.userData = {};
-
-	}
-
-	BufferGeometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: BufferGeometry,
-
-		isBufferGeometry: true,
-
-		getIndex: function () {
-
-			return this.index;
-
-		},
-
-		setIndex: function ( index ) {
-
-			if ( Array.isArray( index ) ) {
-
-				this.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );
-
-			} else {
-
-				this.index = index;
-
-			}
-
-		},
-
-		addAttribute: function ( name, attribute ) {
-
-			if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {
-
-				console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );
-
-				return this.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );
-
-			}
-
-			if ( name === 'index' ) {
-
-				console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );
-				this.setIndex( attribute );
-
-				return this;
-
-			}
-
-			this.attributes[ name ] = attribute;
-
-			return this;
-
-		},
-
-		getAttribute: function ( name ) {
-
-			return this.attributes[ name ];
-
-		},
-
-		removeAttribute: function ( name ) {
-
-			delete this.attributes[ name ];
-
-			return this;
-
-		},
-
-		addGroup: function ( start, count, materialIndex ) {
-
-			this.groups.push( {
-
-				start: start,
-				count: count,
-				materialIndex: materialIndex !== undefined ? materialIndex : 0
-
-			} );
-
-		},
-
-		clearGroups: function () {
-
-			this.groups = [];
-
-		},
-
-		setDrawRange: function ( start, count ) {
-
-			this.drawRange.start = start;
-			this.drawRange.count = count;
-
-		},
-
-		applyMatrix: function ( matrix ) {
-
-			var position = this.attributes.position;
-
-			if ( position !== undefined ) {
-
-				matrix.applyToBufferAttribute( position );
-				position.needsUpdate = true;
-
-			}
-
-			var normal = this.attributes.normal;
-
-			if ( normal !== undefined ) {
-
-				var normalMatrix = new Matrix3().getNormalMatrix( matrix );
-
-				normalMatrix.applyToBufferAttribute( normal );
-				normal.needsUpdate = true;
-
-			}
-
-			var tangent = this.attributes.tangent;
-
-			if ( tangent !== undefined ) {
-
-				var normalMatrix = new Matrix3().getNormalMatrix( matrix );
-
-				// Tangent is vec4, but the '.w' component is a sign value (+1/-1).
-				normalMatrix.applyToBufferAttribute( tangent );
-				tangent.needsUpdate = true;
-
-			}
-
-			if ( this.boundingBox !== null ) {
-
-				this.computeBoundingBox();
-
-			}
-
-			if ( this.boundingSphere !== null ) {
-
-				this.computeBoundingSphere();
-
-			}
-
-			return this;
-
-		},
-
-		rotateX: function () {
-
-			// rotate geometry around world x-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateX( angle ) {
-
-				m1.makeRotationX( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateY: function () {
-
-			// rotate geometry around world y-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateY( angle ) {
-
-				m1.makeRotationY( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateZ: function () {
-
-			// rotate geometry around world z-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateZ( angle ) {
-
-				m1.makeRotationZ( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		translate: function () {
-
-			// translate geometry
-
-			var m1 = new Matrix4();
-
-			return function translate( x, y, z ) {
-
-				m1.makeTranslation( x, y, z );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		scale: function () {
-
-			// scale geometry
-
-			var m1 = new Matrix4();
-
-			return function scale( x, y, z ) {
-
-				m1.makeScale( x, y, z );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		lookAt: function () {
-
-			var obj = new Object3D();
-
-			return function lookAt( vector ) {
-
-				obj.lookAt( vector );
-
-				obj.updateMatrix();
-
-				this.applyMatrix( obj.matrix );
-
-			};
-
-		}(),
-
-		center: function () {
-
-			var offset = new Vector3();
-
-			return function center() {
-
-				this.computeBoundingBox();
-
-				this.boundingBox.getCenter( offset ).negate();
-
-				this.translate( offset.x, offset.y, offset.z );
-
-				return this;
-
-			};
-
-		}(),
-
-		setFromObject: function ( object ) {
-
-			// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );
-
-			var geometry = object.geometry;
-
-			if ( object.isPoints || object.isLine ) {
-
-				var positions = new Float32BufferAttribute( geometry.vertices.length * 3, 3 );
-				var colors = new Float32BufferAttribute( geometry.colors.length * 3, 3 );
-
-				this.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );
-				this.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );
-
-				if ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {
-
-					var lineDistances = new Float32BufferAttribute( geometry.lineDistances.length, 1 );
-
-					this.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );
-
-				}
-
-				if ( geometry.boundingSphere !== null ) {
-
-					this.boundingSphere = geometry.boundingSphere.clone();
-
-				}
-
-				if ( geometry.boundingBox !== null ) {
-
-					this.boundingBox = geometry.boundingBox.clone();
-
-				}
-
-			} else if ( object.isMesh ) {
-
-				if ( geometry && geometry.isGeometry ) {
-
-					this.fromGeometry( geometry );
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		setFromPoints: function ( points ) {
-
-			var position = [];
-
-			for ( var i = 0, l = points.length; i < l; i ++ ) {
-
-				var point = points[ i ];
-				position.push( point.x, point.y, point.z || 0 );
-
-			}
-
-			this.addAttribute( 'position', new Float32BufferAttribute( position, 3 ) );
-
-			return this;
-
-		},
-
-		updateFromObject: function ( object ) {
-
-			var geometry = object.geometry;
-
-			if ( object.isMesh ) {
-
-				var direct = geometry.__directGeometry;
-
-				if ( geometry.elementsNeedUpdate === true ) {
-
-					direct = undefined;
-					geometry.elementsNeedUpdate = false;
-
-				}
-
-				if ( direct === undefined ) {
-
-					return this.fromGeometry( geometry );
-
-				}
-
-				direct.verticesNeedUpdate = geometry.verticesNeedUpdate;
-				direct.normalsNeedUpdate = geometry.normalsNeedUpdate;
-				direct.colorsNeedUpdate = geometry.colorsNeedUpdate;
-				direct.uvsNeedUpdate = geometry.uvsNeedUpdate;
-				direct.groupsNeedUpdate = geometry.groupsNeedUpdate;
-
-				geometry.verticesNeedUpdate = false;
-				geometry.normalsNeedUpdate = false;
-				geometry.colorsNeedUpdate = false;
-				geometry.uvsNeedUpdate = false;
-				geometry.groupsNeedUpdate = false;
-
-				geometry = direct;
-
-			}
-
-			var attribute;
-
-			if ( geometry.verticesNeedUpdate === true ) {
-
-				attribute = this.attributes.position;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyVector3sArray( geometry.vertices );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.verticesNeedUpdate = false;
-
-			}
-
-			if ( geometry.normalsNeedUpdate === true ) {
-
-				attribute = this.attributes.normal;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyVector3sArray( geometry.normals );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.normalsNeedUpdate = false;
-
-			}
-
-			if ( geometry.colorsNeedUpdate === true ) {
-
-				attribute = this.attributes.color;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyColorsArray( geometry.colors );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.colorsNeedUpdate = false;
-
-			}
-
-			if ( geometry.uvsNeedUpdate ) {
-
-				attribute = this.attributes.uv;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyVector2sArray( geometry.uvs );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.uvsNeedUpdate = false;
-
-			}
-
-			if ( geometry.lineDistancesNeedUpdate ) {
-
-				attribute = this.attributes.lineDistance;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyArray( geometry.lineDistances );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.lineDistancesNeedUpdate = false;
-
-			}
-
-			if ( geometry.groupsNeedUpdate ) {
-
-				geometry.computeGroups( object.geometry );
-				this.groups = geometry.groups;
-
-				geometry.groupsNeedUpdate = false;
-
-			}
-
-			return this;
-
-		},
-
-		fromGeometry: function ( geometry ) {
-
-			geometry.__directGeometry = new DirectGeometry().fromGeometry( geometry );
-
-			return this.fromDirectGeometry( geometry.__directGeometry );
-
-		},
-
-		fromDirectGeometry: function ( geometry ) {
-
-			var positions = new Float32Array( geometry.vertices.length * 3 );
-			this.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );
-
-			if ( geometry.normals.length > 0 ) {
-
-				var normals = new Float32Array( geometry.normals.length * 3 );
-				this.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );
-
-			}
-
-			if ( geometry.colors.length > 0 ) {
-
-				var colors = new Float32Array( geometry.colors.length * 3 );
-				this.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );
-
-			}
-
-			if ( geometry.uvs.length > 0 ) {
-
-				var uvs = new Float32Array( geometry.uvs.length * 2 );
-				this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );
-
-			}
-
-			if ( geometry.uvs2.length > 0 ) {
-
-				var uvs2 = new Float32Array( geometry.uvs2.length * 2 );
-				this.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );
-
-			}
-
-			// groups
-
-			this.groups = geometry.groups;
-
-			// morphs
-
-			for ( var name in geometry.morphTargets ) {
-
-				var array = [];
-				var morphTargets = geometry.morphTargets[ name ];
-
-				for ( var i = 0, l = morphTargets.length; i < l; i ++ ) {
-
-					var morphTarget = morphTargets[ i ];
-
-					var attribute = new Float32BufferAttribute( morphTarget.data.length * 3, 3 );
-					attribute.name = morphTarget.name;
-
-					array.push( attribute.copyVector3sArray( morphTarget.data ) );
-
-				}
-
-				this.morphAttributes[ name ] = array;
-
-			}
-
-			// skinning
-
-			if ( geometry.skinIndices.length > 0 ) {
-
-				var skinIndices = new Float32BufferAttribute( geometry.skinIndices.length * 4, 4 );
-				this.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );
-
-			}
-
-			if ( geometry.skinWeights.length > 0 ) {
-
-				var skinWeights = new Float32BufferAttribute( geometry.skinWeights.length * 4, 4 );
-				this.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );
-
-			}
-
-			//
-
-			if ( geometry.boundingSphere !== null ) {
-
-				this.boundingSphere = geometry.boundingSphere.clone();
-
-			}
-
-			if ( geometry.boundingBox !== null ) {
-
-				this.boundingBox = geometry.boundingBox.clone();
-
-			}
-
-			return this;
-
-		},
-
-		computeBoundingBox: function () {
-
-			var box = new Box3();
-
-			return function computeBoundingBox() {
-
-				if ( this.boundingBox === null ) {
-
-					this.boundingBox = new Box3();
-
-				}
-
-				var position = this.attributes.position;
-				var morphAttributesPosition = this.morphAttributes.position;
-
-				if ( position !== undefined ) {
-
-					this.boundingBox.setFromBufferAttribute( position );
-
-					// process morph attributes if present
-
-					if ( morphAttributesPosition ) {
-
-						for ( var i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {
-
-							var morphAttribute = morphAttributesPosition[ i ];
-							box.setFromBufferAttribute( morphAttribute );
-
-							this.boundingBox.expandByPoint( box.min );
-							this.boundingBox.expandByPoint( box.max );
-
-						}
-
-					}
-
-				} else {
-
-					this.boundingBox.makeEmpty();
-
-				}
-
-				if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {
-
-					console.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this );
-
-				}
-
-			};
-
-		}(),
-
-		computeBoundingSphere: function () {
-
-			var box = new Box3();
-			var boxMorphTargets = new Box3();
-			var vector = new Vector3();
-
-			return function computeBoundingSphere() {
-
-				if ( this.boundingSphere === null ) {
-
-					this.boundingSphere = new Sphere();
-
-				}
-
-				var position = this.attributes.position;
-				var morphAttributesPosition = this.morphAttributes.position;
-
-				if ( position ) {
-
-					// first, find the center of the bounding sphere
-
-					var center = this.boundingSphere.center;
-
-					box.setFromBufferAttribute( position );
-
-					// process morph attributes if present
-
-					if ( morphAttributesPosition ) {
-
-						for ( var i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {
-
-							var morphAttribute = morphAttributesPosition[ i ];
-							boxMorphTargets.setFromBufferAttribute( morphAttribute );
-
-							box.expandByPoint( boxMorphTargets.min );
-							box.expandByPoint( boxMorphTargets.max );
-
-						}
-
-					}
-
-					box.getCenter( center );
-
-					// second, try to find a boundingSphere with a radius smaller than the
-					// boundingSphere of the boundingBox: sqrt(3) smaller in the best case
-
-					var maxRadiusSq = 0;
-
-					for ( var i = 0, il = position.count; i < il; i ++ ) {
-
-						vector.fromBufferAttribute( position, i );
-
-						maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );
-
-					}
-
-					// process morph attributes if present
-
-					if ( morphAttributesPosition ) {
-
-						for ( var i = 0, il = morphAttributesPosition.length; i < il; i ++ ) {
-
-							var morphAttribute = morphAttributesPosition[ i ];
-
-							for ( var j = 0, jl = morphAttribute.count; j < jl; j ++ ) {
-
-								vector.fromBufferAttribute( morphAttribute, j );
-
-								maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );
-
-							}
-
-						}
-
-					}
-
-					this.boundingSphere.radius = Math.sqrt( maxRadiusSq );
-
-					if ( isNaN( this.boundingSphere.radius ) ) {
-
-						console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this );
-
-					}
-
-				}
-
-			};
-
-		}(),
-
-		computeFaceNormals: function () {
-
-			// backwards compatibility
-
-		},
-
-		computeVertexNormals: function () {
-
-			var index = this.index;
-			var attributes = this.attributes;
-
-			if ( attributes.position ) {
-
-				var positions = attributes.position.array;
-
-				if ( attributes.normal === undefined ) {
-
-					this.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) );
-
-				} else {
-
-					// reset existing normals to zero
-
-					var array = attributes.normal.array;
-
-					for ( var i = 0, il = array.length; i < il; i ++ ) {
-
-						array[ i ] = 0;
-
-					}
-
-				}
-
-				var normals = attributes.normal.array;
-
-				var vA, vB, vC;
-				var pA = new Vector3(), pB = new Vector3(), pC = new Vector3();
-				var cb = new Vector3(), ab = new Vector3();
-
-				// indexed elements
-
-				if ( index ) {
-
-					var indices = index.array;
-
-					for ( var i = 0, il = index.count; i < il; i += 3 ) {
-
-						vA = indices[ i + 0 ] * 3;
-						vB = indices[ i + 1 ] * 3;
-						vC = indices[ i + 2 ] * 3;
-
-						pA.fromArray( positions, vA );
-						pB.fromArray( positions, vB );
-						pC.fromArray( positions, vC );
-
-						cb.subVectors( pC, pB );
-						ab.subVectors( pA, pB );
-						cb.cross( ab );
-
-						normals[ vA ] += cb.x;
-						normals[ vA + 1 ] += cb.y;
-						normals[ vA + 2 ] += cb.z;
-
-						normals[ vB ] += cb.x;
-						normals[ vB + 1 ] += cb.y;
-						normals[ vB + 2 ] += cb.z;
-
-						normals[ vC ] += cb.x;
-						normals[ vC + 1 ] += cb.y;
-						normals[ vC + 2 ] += cb.z;
-
-					}
-
-				} else {
-
-					// non-indexed elements (unconnected triangle soup)
-
-					for ( var i = 0, il = positions.length; i < il; i += 9 ) {
-
-						pA.fromArray( positions, i );
-						pB.fromArray( positions, i + 3 );
-						pC.fromArray( positions, i + 6 );
-
-						cb.subVectors( pC, pB );
-						ab.subVectors( pA, pB );
-						cb.cross( ab );
-
-						normals[ i ] = cb.x;
-						normals[ i + 1 ] = cb.y;
-						normals[ i + 2 ] = cb.z;
-
-						normals[ i + 3 ] = cb.x;
-						normals[ i + 4 ] = cb.y;
-						normals[ i + 5 ] = cb.z;
-
-						normals[ i + 6 ] = cb.x;
-						normals[ i + 7 ] = cb.y;
-						normals[ i + 8 ] = cb.z;
-
-					}
-
-				}
-
-				this.normalizeNormals();
-
-				attributes.normal.needsUpdate = true;
-
-			}
-
-		},
-
-		merge: function ( geometry, offset ) {
-
-			if ( ! ( geometry && geometry.isBufferGeometry ) ) {
-
-				console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );
-				return;
-
-			}
-
-			if ( offset === undefined ) {
-
-				offset = 0;
-
-				console.warn(
-					'THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. '
-					+ 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.'
-				);
-
-			}
-
-			var attributes = this.attributes;
-
-			for ( var key in attributes ) {
-
-				if ( geometry.attributes[ key ] === undefined ) continue;
-
-				var attribute1 = attributes[ key ];
-				var attributeArray1 = attribute1.array;
-
-				var attribute2 = geometry.attributes[ key ];
-				var attributeArray2 = attribute2.array;
-
-				var attributeOffset = attribute2.itemSize * offset;
-				var length = Math.min( attributeArray2.length, attributeArray1.length - attributeOffset );
-
-				for ( var i = 0, j = attributeOffset; i < length; i ++, j ++ ) {
-
-					attributeArray1[ j ] = attributeArray2[ i ];
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		normalizeNormals: function () {
-
-			var vector = new Vector3();
-
-			return function normalizeNormals() {
-
-				var normals = this.attributes.normal;
-
-				for ( var i = 0, il = normals.count; i < il; i ++ ) {
-
-					vector.x = normals.getX( i );
-					vector.y = normals.getY( i );
-					vector.z = normals.getZ( i );
-
-					vector.normalize();
-
-					normals.setXYZ( i, vector.x, vector.y, vector.z );
-
-				}
-
-			};
-
-		}(),
-
-		toNonIndexed: function () {
-
-			function convertBufferAttribute( attribute, indices ) {
-
-				var array = attribute.array;
-				var itemSize = attribute.itemSize;
-
-				var array2 = new array.constructor( indices.length * itemSize );
-
-				var index = 0, index2 = 0;
-
-				for ( var i = 0, l = indices.length; i < l; i ++ ) {
-
-					index = indices[ i ] * itemSize;
-
-					for ( var j = 0; j < itemSize; j ++ ) {
-
-						array2[ index2 ++ ] = array[ index ++ ];
-
-					}
-
-				}
-
-				return new BufferAttribute( array2, itemSize );
-
-			}
-
-			//
-
-			if ( this.index === null ) {
-
-				console.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' );
-				return this;
-
-			}
-
-			var geometry2 = new BufferGeometry();
-
-			var indices = this.index.array;
-			var attributes = this.attributes;
-
-			// attributes
-
-			for ( var name in attributes ) {
-
-				var attribute = attributes[ name ];
-
-				var newAttribute = convertBufferAttribute( attribute, indices );
-
-				geometry2.addAttribute( name, newAttribute );
-
-			}
-
-			// morph attributes
-
-			var morphAttributes = this.morphAttributes;
-
-			for ( name in morphAttributes ) {
-
-				var morphArray = [];
-				var morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes
-
-				for ( var i = 0, il = morphAttribute.length; i < il; i ++ ) {
-
-					var attribute = morphAttribute[ i ];
-
-					var newAttribute = convertBufferAttribute( attribute, indices );
-
-					morphArray.push( newAttribute );
-
-				}
-
-				geometry2.morphAttributes[ name ] = morphArray;
-
-			}
-
-			// groups
-
-			var groups = this.groups;
-
-			for ( var i = 0, l = groups.length; i < l; i ++ ) {
-
-				var group = groups[ i ];
-				geometry2.addGroup( group.start, group.count, group.materialIndex );
-
-			}
-
-			return geometry2;
-
-		},
-
-		toJSON: function () {
-
-			var data = {
-				metadata: {
-					version: 4.5,
-					type: 'BufferGeometry',
-					generator: 'BufferGeometry.toJSON'
-				}
-			};
-
-			// standard BufferGeometry serialization
-
-			data.uuid = this.uuid;
-			data.type = this.type;
-			if ( this.name !== '' ) data.name = this.name;
-			if ( Object.keys( this.userData ).length > 0 ) data.userData = this.userData;
-
-			if ( this.parameters !== undefined ) {
-
-				var parameters = this.parameters;
-
-				for ( var key in parameters ) {
-
-					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];
-
-				}
-
-				return data;
-
-			}
-
-			data.data = { attributes: {} };
-
-			var index = this.index;
-
-			if ( index !== null ) {
-
-				data.data.index = {
-					type: index.array.constructor.name,
-					array: Array.prototype.slice.call( index.array )
-				};
-
-			}
-
-			var attributes = this.attributes;
-
-			for ( var key in attributes ) {
-
-				var attribute = attributes[ key ];
-
-				var attributeData = attribute.toJSON();
-
-				if ( attribute.name !== '' ) attributeData.name = attribute.name;
-
-				data.data.attributes[ key ] = attributeData;
-
-			}
-
-			var morphAttributes = {};
-			var hasMorphAttributes = false;
-
-			for ( var key in this.morphAttributes ) {
-
-				var attributeArray = this.morphAttributes[ key ];
-
-				var array = [];
-
-				for ( var i = 0, il = attributeArray.length; i < il; i ++ ) {
-
-					var attribute = attributeArray[ i ];
-
-					var attributeData = attribute.toJSON();
-
-					if ( attribute.name !== '' ) attributeData.name = attribute.name;
-
-					array.push( attributeData );
-
-				}
-
-				if ( array.length > 0 ) {
-
-					morphAttributes[ key ] = array;
-
-					hasMorphAttributes = true;
-
-				}
-
-			}
-
-			if ( hasMorphAttributes ) data.data.morphAttributes = morphAttributes;
-
-			var groups = this.groups;
-
-			if ( groups.length > 0 ) {
-
-				data.data.groups = JSON.parse( JSON.stringify( groups ) );
-
-			}
-
-			var boundingSphere = this.boundingSphere;
-
-			if ( boundingSphere !== null ) {
-
-				data.data.boundingSphere = {
-					center: boundingSphere.center.toArray(),
-					radius: boundingSphere.radius
-				};
-
-			}
-
-			return data;
-
-		},
-
-		clone: function () {
-
-			/*
-			 // Handle primitives
-
-			 var parameters = this.parameters;
-
-			 if ( parameters !== undefined ) {
-
-			 var values = [];
-
-			 for ( var key in parameters ) {
-
-			 values.push( parameters[ key ] );
-
-			 }
-
-			 var geometry = Object.create( this.constructor.prototype );
-			 this.constructor.apply( geometry, values );
-			 return geometry;
-
-			 }
-
-			 return new this.constructor().copy( this );
-			 */
-
-			return new BufferGeometry().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			var name, i, l;
-
-			// reset
-
-			this.index = null;
-			this.attributes = {};
-			this.morphAttributes = {};
-			this.groups = [];
-			this.boundingBox = null;
-			this.boundingSphere = null;
-
-			// name
-
-			this.name = source.name;
-
-			// index
-
-			var index = source.index;
-
-			if ( index !== null ) {
-
-				this.setIndex( index.clone() );
-
-			}
-
-			// attributes
-
-			var attributes = source.attributes;
-
-			for ( name in attributes ) {
-
-				var attribute = attributes[ name ];
-				this.addAttribute( name, attribute.clone() );
-
-			}
-
-			// morph attributes
-
-			var morphAttributes = source.morphAttributes;
-
-			for ( name in morphAttributes ) {
-
-				var array = [];
-				var morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes
-
-				for ( i = 0, l = morphAttribute.length; i < l; i ++ ) {
-
-					array.push( morphAttribute[ i ].clone() );
-
-				}
-
-				this.morphAttributes[ name ] = array;
-
-			}
-
-			// groups
-
-			var groups = source.groups;
-
-			for ( i = 0, l = groups.length; i < l; i ++ ) {
-
-				var group = groups[ i ];
-				this.addGroup( group.start, group.count, group.materialIndex );
-
-			}
-
-			// bounding box
-
-			var boundingBox = source.boundingBox;
-
-			if ( boundingBox !== null ) {
-
-				this.boundingBox = boundingBox.clone();
-
-			}
-
-			// bounding sphere
-
-			var boundingSphere = source.boundingSphere;
-
-			if ( boundingSphere !== null ) {
-
-				this.boundingSphere = boundingSphere.clone();
-
-			}
-
-			// draw range
-
-			this.drawRange.start = source.drawRange.start;
-			this.drawRange.count = source.drawRange.count;
-
-			// user data
-
-			this.userData = source.userData;
-
-			return this;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// BoxGeometry
-
-	function BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {
-
-		Geometry.call( this );
-
-		this.type = 'BoxGeometry';
-
-		this.parameters = {
-			width: width,
-			height: height,
-			depth: depth,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments,
-			depthSegments: depthSegments
-		};
-
-		this.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) );
-		this.mergeVertices();
-
-	}
-
-	BoxGeometry.prototype = Object.create( Geometry.prototype );
-	BoxGeometry.prototype.constructor = BoxGeometry;
-
-	// BoxBufferGeometry
-
-	function BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'BoxBufferGeometry';
-
-		this.parameters = {
-			width: width,
-			height: height,
-			depth: depth,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments,
-			depthSegments: depthSegments
-		};
-
-		var scope = this;
-
-		width = width || 1;
-		height = height || 1;
-		depth = depth || 1;
-
-		// segments
-
-		widthSegments = Math.floor( widthSegments ) || 1;
-		heightSegments = Math.floor( heightSegments ) || 1;
-		depthSegments = Math.floor( depthSegments ) || 1;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var numberOfVertices = 0;
-		var groupStart = 0;
-
-		// build each side of the box geometry
-
-		buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px
-		buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx
-		buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py
-		buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny
-		buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz
-		buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {
-
-			var segmentWidth = width / gridX;
-			var segmentHeight = height / gridY;
-
-			var widthHalf = width / 2;
-			var heightHalf = height / 2;
-			var depthHalf = depth / 2;
-
-			var gridX1 = gridX + 1;
-			var gridY1 = gridY + 1;
-
-			var vertexCounter = 0;
-			var groupCount = 0;
-
-			var ix, iy;
-
-			var vector = new Vector3();
-
-			// generate vertices, normals and uvs
-
-			for ( iy = 0; iy < gridY1; iy ++ ) {
-
-				var y = iy * segmentHeight - heightHalf;
-
-				for ( ix = 0; ix < gridX1; ix ++ ) {
-
-					var x = ix * segmentWidth - widthHalf;
-
-					// set values to correct vector component
-
-					vector[ u ] = x * udir;
-					vector[ v ] = y * vdir;
-					vector[ w ] = depthHalf;
-
-					// now apply vector to vertex buffer
-
-					vertices.push( vector.x, vector.y, vector.z );
-
-					// set values to correct vector component
-
-					vector[ u ] = 0;
-					vector[ v ] = 0;
-					vector[ w ] = depth > 0 ? 1 : - 1;
-
-					// now apply vector to normal buffer
-
-					normals.push( vector.x, vector.y, vector.z );
-
-					// uvs
-
-					uvs.push( ix / gridX );
-					uvs.push( 1 - ( iy / gridY ) );
-
-					// counters
-
-					vertexCounter += 1;
-
-				}
-
-			}
-
-			// indices
-
-			// 1. you need three indices to draw a single face
-			// 2. a single segment consists of two faces
-			// 3. so we need to generate six (2*3) indices per segment
-
-			for ( iy = 0; iy < gridY; iy ++ ) {
-
-				for ( ix = 0; ix < gridX; ix ++ ) {
-
-					var a = numberOfVertices + ix + gridX1 * iy;
-					var b = numberOfVertices + ix + gridX1 * ( iy + 1 );
-					var c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );
-					var d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;
-
-					// faces
-
-					indices.push( a, b, d );
-					indices.push( b, c, d );
-
-					// increase counter
-
-					groupCount += 6;
-
-				}
-
-			}
-
-			// add a group to the geometry. this will ensure multi material support
-
-			scope.addGroup( groupStart, groupCount, materialIndex );
-
-			// calculate new start value for groups
-
-			groupStart += groupCount;
-
-			// update total number of vertices
-
-			numberOfVertices += vertexCounter;
-
-		}
-
-	}
-
-	BoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	BoxBufferGeometry.prototype.constructor = BoxBufferGeometry;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// PlaneGeometry
-
-	function PlaneGeometry( width, height, widthSegments, heightSegments ) {
-
-		Geometry.call( this );
-
-		this.type = 'PlaneGeometry';
-
-		this.parameters = {
-			width: width,
-			height: height,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments
-		};
-
-		this.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );
-		this.mergeVertices();
-
-	}
-
-	PlaneGeometry.prototype = Object.create( Geometry.prototype );
-	PlaneGeometry.prototype.constructor = PlaneGeometry;
-
-	// PlaneBufferGeometry
-
-	function PlaneBufferGeometry( width, height, widthSegments, heightSegments ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'PlaneBufferGeometry';
-
-		this.parameters = {
-			width: width,
-			height: height,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments
-		};
-
-		width = width || 1;
-		height = height || 1;
-
-		var width_half = width / 2;
-		var height_half = height / 2;
-
-		var gridX = Math.floor( widthSegments ) || 1;
-		var gridY = Math.floor( heightSegments ) || 1;
-
-		var gridX1 = gridX + 1;
-		var gridY1 = gridY + 1;
-
-		var segment_width = width / gridX;
-		var segment_height = height / gridY;
-
-		var ix, iy;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// generate vertices, normals and uvs
-
-		for ( iy = 0; iy < gridY1; iy ++ ) {
-
-			var y = iy * segment_height - height_half;
-
-			for ( ix = 0; ix < gridX1; ix ++ ) {
-
-				var x = ix * segment_width - width_half;
-
-				vertices.push( x, - y, 0 );
-
-				normals.push( 0, 0, 1 );
-
-				uvs.push( ix / gridX );
-				uvs.push( 1 - ( iy / gridY ) );
-
-			}
-
-		}
-
-		// indices
-
-		for ( iy = 0; iy < gridY; iy ++ ) {
-
-			for ( ix = 0; ix < gridX; ix ++ ) {
-
-				var a = ix + gridX1 * iy;
-				var b = ix + gridX1 * ( iy + 1 );
-				var c = ( ix + 1 ) + gridX1 * ( iy + 1 );
-				var d = ( ix + 1 ) + gridX1 * iy;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	PlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	PlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	var materialId = 0;
-
-	function Material() {
-
-		Object.defineProperty( this, 'id', { value: materialId ++ } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-		this.type = 'Material';
-
-		this.fog = true;
-		this.lights = true;
-
-		this.blending = NormalBlending;
-		this.side = FrontSide;
-		this.flatShading = false;
-		this.vertexTangents = false;
-		this.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors
-
-		this.opacity = 1;
-		this.transparent = false;
-
-		this.blendSrc = SrcAlphaFactor;
-		this.blendDst = OneMinusSrcAlphaFactor;
-		this.blendEquation = AddEquation;
-		this.blendSrcAlpha = null;
-		this.blendDstAlpha = null;
-		this.blendEquationAlpha = null;
-
-		this.depthFunc = LessEqualDepth;
-		this.depthTest = true;
-		this.depthWrite = true;
-
-		this.clippingPlanes = null;
-		this.clipIntersection = false;
-		this.clipShadows = false;
-
-		this.shadowSide = null;
-
-		this.colorWrite = true;
-
-		this.precision = null; // override the renderer's default precision for this material
-
-		this.polygonOffset = false;
-		this.polygonOffsetFactor = 0;
-		this.polygonOffsetUnits = 0;
-
-		this.dithering = false;
-
-		this.alphaTest = 0;
-		this.premultipliedAlpha = false;
-
-		this.visible = true;
-
-		this.userData = {};
-
-		this.needsUpdate = true;
-
-	}
-
-	Material.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: Material,
-
-		isMaterial: true,
-
-		onBeforeCompile: function () {},
-
-		setValues: function ( values ) {
-
-			if ( values === undefined ) return;
-
-			for ( var key in values ) {
-
-				var newValue = values[ key ];
-
-				if ( newValue === undefined ) {
-
-					console.warn( "THREE.Material: '" + key + "' parameter is undefined." );
-					continue;
-
-				}
-
-				// for backward compatability if shading is set in the constructor
-				if ( key === 'shading' ) {
-
-					console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
-					this.flatShading = ( newValue === FlatShading ) ? true : false;
-					continue;
-
-				}
-
-				var currentValue = this[ key ];
-
-				if ( currentValue === undefined ) {
-
-					console.warn( "THREE." + this.type + ": '" + key + "' is not a property of this material." );
-					continue;
-
-				}
-
-				if ( currentValue && currentValue.isColor ) {
-
-					currentValue.set( newValue );
-
-				} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {
-
-					currentValue.copy( newValue );
-
-				} else {
-
-					this[ key ] = newValue;
-
-				}
-
-			}
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var isRoot = ( meta === undefined || typeof meta === 'string' );
-
-			if ( isRoot ) {
-
-				meta = {
-					textures: {},
-					images: {}
-				};
-
-			}
-
-			var data = {
-				metadata: {
-					version: 4.5,
-					type: 'Material',
-					generator: 'Material.toJSON'
-				}
-			};
-
-			// standard Material serialization
-			data.uuid = this.uuid;
-			data.type = this.type;
-
-			if ( this.name !== '' ) data.name = this.name;
-
-			if ( this.color && this.color.isColor ) data.color = this.color.getHex();
-
-			if ( this.roughness !== undefined ) data.roughness = this.roughness;
-			if ( this.metalness !== undefined ) data.metalness = this.metalness;
-
-			if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();
-			if ( this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;
-
-			if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();
-			if ( this.shininess !== undefined ) data.shininess = this.shininess;
-			if ( this.clearCoat !== undefined ) data.clearCoat = this.clearCoat;
-			if ( this.clearCoatRoughness !== undefined ) data.clearCoatRoughness = this.clearCoatRoughness;
-
-			if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;
-			if ( this.matcap && this.matcap.isTexture ) data.matcap = this.matcap.toJSON( meta ).uuid;
-			if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;
-			if ( this.lightMap && this.lightMap.isTexture ) data.lightMap = this.lightMap.toJSON( meta ).uuid;
-
-			if ( this.aoMap && this.aoMap.isTexture ) {
-
-				data.aoMap = this.aoMap.toJSON( meta ).uuid;
-				data.aoMapIntensity = this.aoMapIntensity;
-
-			}
-
-			if ( this.bumpMap && this.bumpMap.isTexture ) {
-
-				data.bumpMap = this.bumpMap.toJSON( meta ).uuid;
-				data.bumpScale = this.bumpScale;
-
-			}
-
-			if ( this.normalMap && this.normalMap.isTexture ) {
-
-				data.normalMap = this.normalMap.toJSON( meta ).uuid;
-				data.normalMapType = this.normalMapType;
-				data.normalScale = this.normalScale.toArray();
-
-			}
-
-			if ( this.displacementMap && this.displacementMap.isTexture ) {
-
-				data.displacementMap = this.displacementMap.toJSON( meta ).uuid;
-				data.displacementScale = this.displacementScale;
-				data.displacementBias = this.displacementBias;
-
-			}
-
-			if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;
-			if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;
-
-			if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;
-			if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;
-
-			if ( this.envMap && this.envMap.isTexture ) {
-
-				data.envMap = this.envMap.toJSON( meta ).uuid;
-				data.reflectivity = this.reflectivity; // Scale behind envMap
-
-				if ( this.combine !== undefined ) data.combine = this.combine;
-				if ( this.envMapIntensity !== undefined ) data.envMapIntensity = this.envMapIntensity;
-
-			}
-
-			if ( this.gradientMap && this.gradientMap.isTexture ) {
-
-				data.gradientMap = this.gradientMap.toJSON( meta ).uuid;
-
-			}
-
-			if ( this.size !== undefined ) data.size = this.size;
-			if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;
-
-			if ( this.blending !== NormalBlending ) data.blending = this.blending;
-			if ( this.flatShading === true ) data.flatShading = this.flatShading;
-			if ( this.side !== FrontSide ) data.side = this.side;
-			if ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors;
-
-			if ( this.opacity < 1 ) data.opacity = this.opacity;
-			if ( this.transparent === true ) data.transparent = this.transparent;
-
-			data.depthFunc = this.depthFunc;
-			data.depthTest = this.depthTest;
-			data.depthWrite = this.depthWrite;
-
-			// rotation (SpriteMaterial)
-			if ( this.rotation !== 0 ) data.rotation = this.rotation;
-
-			if ( this.polygonOffset === true ) data.polygonOffset = true;
-			if ( this.polygonOffsetFactor !== 0 ) data.polygonOffsetFactor = this.polygonOffsetFactor;
-			if ( this.polygonOffsetUnits !== 0 ) data.polygonOffsetUnits = this.polygonOffsetUnits;
-
-			if ( this.linewidth !== 1 ) data.linewidth = this.linewidth;
-			if ( this.dashSize !== undefined ) data.dashSize = this.dashSize;
-			if ( this.gapSize !== undefined ) data.gapSize = this.gapSize;
-			if ( this.scale !== undefined ) data.scale = this.scale;
-
-			if ( this.dithering === true ) data.dithering = true;
-
-			if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;
-			if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;
-
-			if ( this.wireframe === true ) data.wireframe = this.wireframe;
-			if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;
-			if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;
-			if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;
-
-			if ( this.morphTargets === true ) data.morphTargets = true;
-			if ( this.skinning === true ) data.skinning = true;
-
-			if ( this.visible === false ) data.visible = false;
-			if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;
-
-			// TODO: Copied from Object3D.toJSON
-
-			function extractFromCache( cache ) {
-
-				var values = [];
-
-				for ( var key in cache ) {
-
-					var data = cache[ key ];
-					delete data.metadata;
-					values.push( data );
-
-				}
-
-				return values;
-
-			}
-
-			if ( isRoot ) {
-
-				var textures = extractFromCache( meta.textures );
-				var images = extractFromCache( meta.images );
-
-				if ( textures.length > 0 ) data.textures = textures;
-				if ( images.length > 0 ) data.images = images;
-
-			}
-
-			return data;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.name = source.name;
-
-			this.fog = source.fog;
-			this.lights = source.lights;
-
-			this.blending = source.blending;
-			this.side = source.side;
-			this.flatShading = source.flatShading;
-			this.vertexColors = source.vertexColors;
-
-			this.opacity = source.opacity;
-			this.transparent = source.transparent;
-
-			this.blendSrc = source.blendSrc;
-			this.blendDst = source.blendDst;
-			this.blendEquation = source.blendEquation;
-			this.blendSrcAlpha = source.blendSrcAlpha;
-			this.blendDstAlpha = source.blendDstAlpha;
-			this.blendEquationAlpha = source.blendEquationAlpha;
-
-			this.depthFunc = source.depthFunc;
-			this.depthTest = source.depthTest;
-			this.depthWrite = source.depthWrite;
-
-			this.colorWrite = source.colorWrite;
-
-			this.precision = source.precision;
-
-			this.polygonOffset = source.polygonOffset;
-			this.polygonOffsetFactor = source.polygonOffsetFactor;
-			this.polygonOffsetUnits = source.polygonOffsetUnits;
-
-			this.dithering = source.dithering;
-
-			this.alphaTest = source.alphaTest;
-			this.premultipliedAlpha = source.premultipliedAlpha;
-
-			this.visible = source.visible;
-			this.userData = JSON.parse( JSON.stringify( source.userData ) );
-
-			this.clipShadows = source.clipShadows;
-			this.clipIntersection = source.clipIntersection;
-
-			var srcPlanes = source.clippingPlanes,
-				dstPlanes = null;
-
-			if ( srcPlanes !== null ) {
-
-				var n = srcPlanes.length;
-				dstPlanes = new Array( n );
-
-				for ( var i = 0; i !== n; ++ i )
-					dstPlanes[ i ] = srcPlanes[ i ].clone();
-
-			}
-
-			this.clippingPlanes = dstPlanes;
-
-			this.shadowSide = source.shadowSide;
-
-			return this;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		}
-
-	} );
-
-	var default_vertex = "void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";
-
-	var default_fragment = "void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  defines: { "label" : "value" },
-	 *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
-	 *
-	 *  fragmentShader: <string>,
-	 *  vertexShader: <string>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  lights: <bool>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function ShaderMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'ShaderMaterial';
-
-		this.defines = {};
-		this.uniforms = {};
-
-		this.vertexShader = default_vertex;
-		this.fragmentShader = default_fragment;
-
-		this.linewidth = 1;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-
-		this.fog = false; // set to use scene fog
-		this.lights = false; // set to use scene lights
-		this.clipping = false; // set to use user-defined clipping planes
-
-		this.skinning = false; // set to use skinning attribute streams
-		this.morphTargets = false; // set to use morph targets
-		this.morphNormals = false; // set to use morph normals
-
-		this.extensions = {
-			derivatives: false, // set to use derivatives
-			fragDepth: false, // set to use fragment depth values
-			drawBuffers: false, // set to use draw buffers
-			shaderTextureLOD: false // set to use shader texture LOD
-		};
-
-		// When rendered geometry doesn't include these attributes but the material does,
-		// use these default values in WebGL. This avoids errors when buffer data is missing.
-		this.defaultAttributeValues = {
-			'color': [ 1, 1, 1 ],
-			'uv': [ 0, 0 ],
-			'uv2': [ 0, 0 ]
-		};
-
-		this.index0AttributeName = undefined;
-		this.uniformsNeedUpdate = false;
-
-		if ( parameters !== undefined ) {
-
-			if ( parameters.attributes !== undefined ) {
-
-				console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );
-
-			}
-
-			this.setValues( parameters );
-
-		}
-
-	}
-
-	ShaderMaterial.prototype = Object.create( Material.prototype );
-	ShaderMaterial.prototype.constructor = ShaderMaterial;
-
-	ShaderMaterial.prototype.isShaderMaterial = true;
-
-	ShaderMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.fragmentShader = source.fragmentShader;
-		this.vertexShader = source.vertexShader;
-
-		this.uniforms = cloneUniforms( source.uniforms );
-
-		this.defines = Object.assign( {}, source.defines );
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-
-		this.lights = source.lights;
-		this.clipping = source.clipping;
-
-		this.skinning = source.skinning;
-
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		this.extensions = source.extensions;
-
-		return this;
-
-	};
-
-	ShaderMaterial.prototype.toJSON = function ( meta ) {
-
-		var data = Material.prototype.toJSON.call( this, meta );
-
-		data.uniforms = {};
-
-		for ( var name in this.uniforms ) {
-
-			var uniform = this.uniforms[ name ];
-			var value = uniform.value;
-
-			if ( value && value.isTexture ) {
-
-				data.uniforms[ name ] = {
-					type: 't',
-					value: value.toJSON( meta ).uuid
-				};
-
-			} else if ( value && value.isColor ) {
-
-				data.uniforms[ name ] = {
-					type: 'c',
-					value: value.getHex()
-				};
-
-			} else if ( value && value.isVector2 ) {
-
-				data.uniforms[ name ] = {
-					type: 'v2',
-					value: value.toArray()
-				};
-
-			} else if ( value && value.isVector3 ) {
-
-				data.uniforms[ name ] = {
-					type: 'v3',
-					value: value.toArray()
-				};
-
-			} else if ( value && value.isVector4 ) {
-
-				data.uniforms[ name ] = {
-					type: 'v4',
-					value: value.toArray()
-				};
-
-			} else if ( value && value.isMatrix3 ) {
-
-				data.uniforms[ name ] = {
-					type: 'm3',
-					value: value.toArray()
-				};
-
-			} else if ( value && value.isMatrix4 ) {
-
-				data.uniforms[ name ] = {
-					type: 'm4',
-					value: value.toArray()
-				};
-
-			} else {
-
-				data.uniforms[ name ] = {
-					value: value
-				};
-
-				// note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far
-
-			}
-
-		}
-
-		if ( Object.keys( this.defines ).length > 0 ) data.defines = this.defines;
-
-		data.vertexShader = this.vertexShader;
-		data.fragmentShader = this.fragmentShader;
-
-		var extensions = {};
-
-		for ( var key in this.extensions ) {
-
-			if ( this.extensions[ key ] === true ) extensions[ key ] = true;
-
-		}
-
-		if ( Object.keys( extensions ).length > 0 ) data.extensions = extensions;
-
-		return data;
-
-	};
-
-	/**
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Ray( origin, direction ) {
-
-		this.origin = ( origin !== undefined ) ? origin : new Vector3();
-		this.direction = ( direction !== undefined ) ? direction : new Vector3();
-
-	}
-
-	Object.assign( Ray.prototype, {
-
-		set: function ( origin, direction ) {
-
-			this.origin.copy( origin );
-			this.direction.copy( direction );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( ray ) {
-
-			this.origin.copy( ray.origin );
-			this.direction.copy( ray.direction );
-
-			return this;
-
-		},
-
-		at: function ( t, target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Ray: .at() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return target.copy( this.direction ).multiplyScalar( t ).add( this.origin );
-
-		},
-
-		lookAt: function ( v ) {
-
-			this.direction.copy( v ).sub( this.origin ).normalize();
-
-			return this;
-
-		},
-
-		recast: function () {
-
-			var v1 = new Vector3();
-
-			return function recast( t ) {
-
-				this.origin.copy( this.at( t, v1 ) );
-
-				return this;
-
-			};
-
-		}(),
-
-		closestPointToPoint: function ( point, target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Ray: .closestPointToPoint() target is now required' );
-				target = new Vector3();
-
-			}
-
-			target.subVectors( point, this.origin );
-
-			var directionDistance = target.dot( this.direction );
-
-			if ( directionDistance < 0 ) {
-
-				return target.copy( this.origin );
-
-			}
-
-			return target.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );
-
-		},
-
-		distanceToPoint: function ( point ) {
-
-			return Math.sqrt( this.distanceSqToPoint( point ) );
-
-		},
-
-		distanceSqToPoint: function () {
-
-			var v1 = new Vector3();
-
-			return function distanceSqToPoint( point ) {
-
-				var directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );
-
-				// point behind the ray
-
-				if ( directionDistance < 0 ) {
-
-					return this.origin.distanceToSquared( point );
-
-				}
-
-				v1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );
-
-				return v1.distanceToSquared( point );
-
-			};
-
-		}(),
-
-		distanceSqToSegment: function () {
-
-			var segCenter = new Vector3();
-			var segDir = new Vector3();
-			var diff = new Vector3();
-
-			return function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {
-
-				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h
-				// It returns the min distance between the ray and the segment
-				// defined by v0 and v1
-				// It can also set two optional targets :
-				// - The closest point on the ray
-				// - The closest point on the segment
-
-				segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
-				segDir.copy( v1 ).sub( v0 ).normalize();
-				diff.copy( this.origin ).sub( segCenter );
-
-				var segExtent = v0.distanceTo( v1 ) * 0.5;
-				var a01 = - this.direction.dot( segDir );
-				var b0 = diff.dot( this.direction );
-				var b1 = - diff.dot( segDir );
-				var c = diff.lengthSq();
-				var det = Math.abs( 1 - a01 * a01 );
-				var s0, s1, sqrDist, extDet;
-
-				if ( det > 0 ) {
-
-					// The ray and segment are not parallel.
-
-					s0 = a01 * b1 - b0;
-					s1 = a01 * b0 - b1;
-					extDet = segExtent * det;
-
-					if ( s0 >= 0 ) {
-
-						if ( s1 >= - extDet ) {
-
-							if ( s1 <= extDet ) {
-
-								// region 0
-								// Minimum at interior points of ray and segment.
-
-								var invDet = 1 / det;
-								s0 *= invDet;
-								s1 *= invDet;
-								sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;
-
-							} else {
-
-								// region 1
-
-								s1 = segExtent;
-								s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
-								sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-							}
-
-						} else {
-
-							// region 5
-
-							s1 = - segExtent;
-							s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
-							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-						}
-
-					} else {
-
-						if ( s1 <= - extDet ) {
-
-							// region 4
-
-							s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
-							s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
-							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-						} else if ( s1 <= extDet ) {
-
-							// region 3
-
-							s0 = 0;
-							s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
-							sqrDist = s1 * ( s1 + 2 * b1 ) + c;
-
-						} else {
-
-							// region 2
-
-							s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
-							s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
-							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-						}
-
-					}
-
-				} else {
-
-					// Ray and segment are parallel.
-
-					s1 = ( a01 > 0 ) ? - segExtent : segExtent;
-					s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
-					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-				}
-
-				if ( optionalPointOnRay ) {
-
-					optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );
-
-				}
-
-				if ( optionalPointOnSegment ) {
-
-					optionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );
-
-				}
-
-				return sqrDist;
-
-			};
-
-		}(),
-
-		intersectSphere: function () {
-
-			var v1 = new Vector3();
-
-			return function intersectSphere( sphere, target ) {
-
-				v1.subVectors( sphere.center, this.origin );
-				var tca = v1.dot( this.direction );
-				var d2 = v1.dot( v1 ) - tca * tca;
-				var radius2 = sphere.radius * sphere.radius;
-
-				if ( d2 > radius2 ) return null;
-
-				var thc = Math.sqrt( radius2 - d2 );
-
-				// t0 = first intersect point - entrance on front of sphere
-				var t0 = tca - thc;
-
-				// t1 = second intersect point - exit point on back of sphere
-				var t1 = tca + thc;
-
-				// test to see if both t0 and t1 are behind the ray - if so, return null
-				if ( t0 < 0 && t1 < 0 ) return null;
-
-				// test to see if t0 is behind the ray:
-				// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
-				// in order to always return an intersect point that is in front of the ray.
-				if ( t0 < 0 ) return this.at( t1, target );
-
-				// else t0 is in front of the ray, so return the first collision point scaled by t0
-				return this.at( t0, target );
-
-			};
-
-		}(),
-
-		intersectsSphere: function ( sphere ) {
-
-			return this.distanceSqToPoint( sphere.center ) <= ( sphere.radius * sphere.radius );
-
-		},
-
-		distanceToPlane: function ( plane ) {
-
-			var denominator = plane.normal.dot( this.direction );
-
-			if ( denominator === 0 ) {
-
-				// line is coplanar, return origin
-				if ( plane.distanceToPoint( this.origin ) === 0 ) {
-
-					return 0;
-
-				}
-
-				// Null is preferable to undefined since undefined means.... it is undefined
-
-				return null;
-
-			}
-
-			var t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;
-
-			// Return if the ray never intersects the plane
-
-			return t >= 0 ? t : null;
-
-		},
-
-		intersectPlane: function ( plane, target ) {
-
-			var t = this.distanceToPlane( plane );
-
-			if ( t === null ) {
-
-				return null;
-
-			}
-
-			return this.at( t, target );
-
-		},
-
-		intersectsPlane: function ( plane ) {
-
-			// check if the ray lies on the plane first
-
-			var distToPoint = plane.distanceToPoint( this.origin );
-
-			if ( distToPoint === 0 ) {
-
-				return true;
-
-			}
-
-			var denominator = plane.normal.dot( this.direction );
-
-			if ( denominator * distToPoint < 0 ) {
-
-				return true;
-
-			}
-
-			// ray origin is behind the plane (and is pointing behind it)
-
-			return false;
-
-		},
-
-		intersectBox: function ( box, target ) {
-
-			var tmin, tmax, tymin, tymax, tzmin, tzmax;
-
-			var invdirx = 1 / this.direction.x,
-				invdiry = 1 / this.direction.y,
-				invdirz = 1 / this.direction.z;
-
-			var origin = this.origin;
-
-			if ( invdirx >= 0 ) {
-
-				tmin = ( box.min.x - origin.x ) * invdirx;
-				tmax = ( box.max.x - origin.x ) * invdirx;
-
-			} else {
-
-				tmin = ( box.max.x - origin.x ) * invdirx;
-				tmax = ( box.min.x - origin.x ) * invdirx;
-
-			}
-
-			if ( invdiry >= 0 ) {
-
-				tymin = ( box.min.y - origin.y ) * invdiry;
-				tymax = ( box.max.y - origin.y ) * invdiry;
-
-			} else {
-
-				tymin = ( box.max.y - origin.y ) * invdiry;
-				tymax = ( box.min.y - origin.y ) * invdiry;
-
-			}
-
-			if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;
-
-			// These lines also handle the case where tmin or tmax is NaN
-			// (result of 0 * Infinity). x !== x returns true if x is NaN
-
-			if ( tymin > tmin || tmin !== tmin ) tmin = tymin;
-
-			if ( tymax < tmax || tmax !== tmax ) tmax = tymax;
-
-			if ( invdirz >= 0 ) {
-
-				tzmin = ( box.min.z - origin.z ) * invdirz;
-				tzmax = ( box.max.z - origin.z ) * invdirz;
-
-			} else {
-
-				tzmin = ( box.max.z - origin.z ) * invdirz;
-				tzmax = ( box.min.z - origin.z ) * invdirz;
-
-			}
-
-			if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;
-
-			if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;
-
-			if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;
-
-			//return point closest to the ray (positive side)
-
-			if ( tmax < 0 ) return null;
-
-			return this.at( tmin >= 0 ? tmin : tmax, target );
-
-		},
-
-		intersectsBox: ( function () {
-
-			var v = new Vector3();
-
-			return function intersectsBox( box ) {
-
-				return this.intersectBox( box, v ) !== null;
-
-			};
-
-		} )(),
-
-		intersectTriangle: function () {
-
-			// Compute the offset origin, edges, and normal.
-			var diff = new Vector3();
-			var edge1 = new Vector3();
-			var edge2 = new Vector3();
-			var normal = new Vector3();
-
-			return function intersectTriangle( a, b, c, backfaceCulling, target ) {
-
-				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h
-
-				edge1.subVectors( b, a );
-				edge2.subVectors( c, a );
-				normal.crossVectors( edge1, edge2 );
-
-				// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
-				// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
-				//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
-				//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
-				//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
-				var DdN = this.direction.dot( normal );
-				var sign;
-
-				if ( DdN > 0 ) {
-
-					if ( backfaceCulling ) return null;
-					sign = 1;
-
-				} else if ( DdN < 0 ) {
-
-					sign = - 1;
-					DdN = - DdN;
-
-				} else {
-
-					return null;
-
-				}
-
-				diff.subVectors( this.origin, a );
-				var DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );
-
-				// b1 < 0, no intersection
-				if ( DdQxE2 < 0 ) {
-
-					return null;
-
-				}
-
-				var DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );
-
-				// b2 < 0, no intersection
-				if ( DdE1xQ < 0 ) {
-
-					return null;
-
-				}
-
-				// b1+b2 > 1, no intersection
-				if ( DdQxE2 + DdE1xQ > DdN ) {
-
-					return null;
-
-				}
-
-				// Line intersects triangle, check if ray does.
-				var QdN = - sign * diff.dot( normal );
-
-				// t < 0, no intersection
-				if ( QdN < 0 ) {
-
-					return null;
-
-				}
-
-				// Ray intersects triangle.
-				return this.at( QdN / DdN, target );
-
-			};
-
-		}(),
-
-		applyMatrix4: function ( matrix4 ) {
-
-			this.origin.applyMatrix4( matrix4 );
-			this.direction.transformDirection( matrix4 );
-
-			return this;
-
-		},
-
-		equals: function ( ray ) {
-
-			return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Triangle( a, b, c ) {
-
-		this.a = ( a !== undefined ) ? a : new Vector3();
-		this.b = ( b !== undefined ) ? b : new Vector3();
-		this.c = ( c !== undefined ) ? c : new Vector3();
-
-	}
-
-	Object.assign( Triangle, {
-
-		getNormal: function () {
-
-			var v0 = new Vector3();
-
-			return function getNormal( a, b, c, target ) {
-
-				if ( target === undefined ) {
-
-					console.warn( 'THREE.Triangle: .getNormal() target is now required' );
-					target = new Vector3();
-
-				}
-
-				target.subVectors( c, b );
-				v0.subVectors( a, b );
-				target.cross( v0 );
-
-				var targetLengthSq = target.lengthSq();
-				if ( targetLengthSq > 0 ) {
-
-					return target.multiplyScalar( 1 / Math.sqrt( targetLengthSq ) );
-
-				}
-
-				return target.set( 0, 0, 0 );
-
-			};
-
-		}(),
-
-		// static/instance method to calculate barycentric coordinates
-		// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
-		getBarycoord: function () {
-
-			var v0 = new Vector3();
-			var v1 = new Vector3();
-			var v2 = new Vector3();
-
-			return function getBarycoord( point, a, b, c, target ) {
-
-				v0.subVectors( c, a );
-				v1.subVectors( b, a );
-				v2.subVectors( point, a );
-
-				var dot00 = v0.dot( v0 );
-				var dot01 = v0.dot( v1 );
-				var dot02 = v0.dot( v2 );
-				var dot11 = v1.dot( v1 );
-				var dot12 = v1.dot( v2 );
-
-				var denom = ( dot00 * dot11 - dot01 * dot01 );
-
-				if ( target === undefined ) {
-
-					console.warn( 'THREE.Triangle: .getBarycoord() target is now required' );
-					target = new Vector3();
-
-				}
-
-				// collinear or singular triangle
-				if ( denom === 0 ) {
-
-					// arbitrary location outside of triangle?
-					// not sure if this is the best idea, maybe should be returning undefined
-					return target.set( - 2, - 1, - 1 );
-
-				}
-
-				var invDenom = 1 / denom;
-				var u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;
-				var v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;
-
-				// barycentric coordinates must always sum to 1
-				return target.set( 1 - u - v, v, u );
-
-			};
-
-		}(),
-
-		containsPoint: function () {
-
-			var v1 = new Vector3();
-
-			return function containsPoint( point, a, b, c ) {
-
-				Triangle.getBarycoord( point, a, b, c, v1 );
-
-				return ( v1.x >= 0 ) && ( v1.y >= 0 ) && ( ( v1.x + v1.y ) <= 1 );
-
-			};
-
-		}(),
-
-		getUV: function () {
-
-			var barycoord = new Vector3();
-
-			return function getUV( point, p1, p2, p3, uv1, uv2, uv3, target ) {
-
-				this.getBarycoord( point, p1, p2, p3, barycoord );
-
-				target.set( 0, 0 );
-				target.addScaledVector( uv1, barycoord.x );
-				target.addScaledVector( uv2, barycoord.y );
-				target.addScaledVector( uv3, barycoord.z );
-
-				return target;
-
-			};
-
-		}(),
-
-		isFrontFacing: function () {
-
-			var v0 = new Vector3();
-			var v1 = new Vector3();
-
-			return function isFrontFacing( a, b, c, direction ) {
-
-				v0.subVectors( c, b );
-				v1.subVectors( a, b );
-
-				// strictly front facing
-				return ( v0.cross( v1 ).dot( direction ) < 0 ) ? true : false;
-
-			};
-
-		}()
-
-	} );
-
-	Object.assign( Triangle.prototype, {
-
-		set: function ( a, b, c ) {
-
-			this.a.copy( a );
-			this.b.copy( b );
-			this.c.copy( c );
-
-			return this;
-
-		},
-
-		setFromPointsAndIndices: function ( points, i0, i1, i2 ) {
-
-			this.a.copy( points[ i0 ] );
-			this.b.copy( points[ i1 ] );
-			this.c.copy( points[ i2 ] );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( triangle ) {
-
-			this.a.copy( triangle.a );
-			this.b.copy( triangle.b );
-			this.c.copy( triangle.c );
-
-			return this;
-
-		},
-
-		getArea: function () {
-
-			var v0 = new Vector3();
-			var v1 = new Vector3();
-
-			return function getArea() {
-
-				v0.subVectors( this.c, this.b );
-				v1.subVectors( this.a, this.b );
-
-				return v0.cross( v1 ).length() * 0.5;
-
-			};
-
-		}(),
-
-		getMidpoint: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Triangle: .getMidpoint() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return target.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );
-
-		},
-
-		getNormal: function ( target ) {
-
-			return Triangle.getNormal( this.a, this.b, this.c, target );
-
-		},
-
-		getPlane: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Triangle: .getPlane() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return target.setFromCoplanarPoints( this.a, this.b, this.c );
-
-		},
-
-		getBarycoord: function ( point, target ) {
-
-			return Triangle.getBarycoord( point, this.a, this.b, this.c, target );
-
-		},
-
-		getUV: function ( point, uv1, uv2, uv3, target ) {
-
-			return Triangle.getUV( point, this.a, this.b, this.c, uv1, uv2, uv3, target );
-
-		},
-
-		containsPoint: function ( point ) {
-
-			return Triangle.containsPoint( point, this.a, this.b, this.c );
-
-		},
-
-		isFrontFacing: function ( direction ) {
-
-			return Triangle.isFrontFacing( this.a, this.b, this.c, direction );
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			return box.intersectsTriangle( this );
-
-		},
-
-		closestPointToPoint: function () {
-
-			var vab = new Vector3();
-			var vac = new Vector3();
-			var vbc = new Vector3();
-			var vap = new Vector3();
-			var vbp = new Vector3();
-			var vcp = new Vector3();
-
-			return function closestPointToPoint( p, target ) {
-
-				if ( target === undefined ) {
-
-					console.warn( 'THREE.Triangle: .closestPointToPoint() target is now required' );
-					target = new Vector3();
-
-				}
-
-				var a = this.a, b = this.b, c = this.c;
-				var v, w;
-
-				// algorithm thanks to Real-Time Collision Detection by Christer Ericson,
-				// published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,
-				// under the accompanying license; see chapter 5.1.5 for detailed explanation.
-				// basically, we're distinguishing which of the voronoi regions of the triangle
-				// the point lies in with the minimum amount of redundant computation.
-
-				vab.subVectors( b, a );
-				vac.subVectors( c, a );
-				vap.subVectors( p, a );
-				var d1 = vab.dot( vap );
-				var d2 = vac.dot( vap );
-				if ( d1 <= 0 && d2 <= 0 ) {
-
-					// vertex region of A; barycentric coords (1, 0, 0)
-					return target.copy( a );
-
-				}
-
-				vbp.subVectors( p, b );
-				var d3 = vab.dot( vbp );
-				var d4 = vac.dot( vbp );
-				if ( d3 >= 0 && d4 <= d3 ) {
-
-					// vertex region of B; barycentric coords (0, 1, 0)
-					return target.copy( b );
-
-				}
-
-				var vc = d1 * d4 - d3 * d2;
-				if ( vc <= 0 && d1 >= 0 && d3 <= 0 ) {
-
-					v = d1 / ( d1 - d3 );
-					// edge region of AB; barycentric coords (1-v, v, 0)
-					return target.copy( a ).addScaledVector( vab, v );
-
-				}
-
-				vcp.subVectors( p, c );
-				var d5 = vab.dot( vcp );
-				var d6 = vac.dot( vcp );
-				if ( d6 >= 0 && d5 <= d6 ) {
-
-					// vertex region of C; barycentric coords (0, 0, 1)
-					return target.copy( c );
-
-				}
-
-				var vb = d5 * d2 - d1 * d6;
-				if ( vb <= 0 && d2 >= 0 && d6 <= 0 ) {
-
-					w = d2 / ( d2 - d6 );
-					// edge region of AC; barycentric coords (1-w, 0, w)
-					return target.copy( a ).addScaledVector( vac, w );
-
-				}
-
-				var va = d3 * d6 - d5 * d4;
-				if ( va <= 0 && ( d4 - d3 ) >= 0 && ( d5 - d6 ) >= 0 ) {
-
-					vbc.subVectors( c, b );
-					w = ( d4 - d3 ) / ( ( d4 - d3 ) + ( d5 - d6 ) );
-					// edge region of BC; barycentric coords (0, 1-w, w)
-					return target.copy( b ).addScaledVector( vbc, w ); // edge region of BC
-
-				}
-
-				// face region
-				var denom = 1 / ( va + vb + vc );
-				// u = va * denom
-				v = vb * denom;
-				w = vc * denom;
-				return target.copy( a ).addScaledVector( vab, v ).addScaledVector( vac, w );
-
-			};
-
-		}(),
-
-		equals: function ( triangle ) {
-
-			return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  lightMap: new THREE.Texture( <Image> ),
-	 *  lightMapIntensity: <float>
-	 *
-	 *  aoMap: new THREE.Texture( <Image> ),
-	 *  aoMapIntensity: <float>
-	 *
-	 *  specularMap: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
-	 *  combine: THREE.Multiply,
-	 *  reflectivity: <float>,
-	 *  refractionRatio: <float>,
-	 *
-	 *  depthTest: <bool>,
-	 *  depthWrite: <bool>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>
-	 * }
-	 */
-
-	function MeshBasicMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshBasicMaterial';
-
-		this.color = new Color( 0xffffff ); // emissive
-
-		this.map = null;
-
-		this.lightMap = null;
-		this.lightMapIntensity = 1.0;
-
-		this.aoMap = null;
-		this.aoMapIntensity = 1.0;
-
-		this.specularMap = null;
-
-		this.alphaMap = null;
-
-		this.envMap = null;
-		this.combine = MultiplyOperation;
-		this.reflectivity = 1;
-		this.refractionRatio = 0.98;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-		this.wireframeLinecap = 'round';
-		this.wireframeLinejoin = 'round';
-
-		this.skinning = false;
-		this.morphTargets = false;
-
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshBasicMaterial.prototype = Object.create( Material.prototype );
-	MeshBasicMaterial.prototype.constructor = MeshBasicMaterial;
-
-	MeshBasicMaterial.prototype.isMeshBasicMaterial = true;
-
-	MeshBasicMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-
-		this.map = source.map;
-
-		this.lightMap = source.lightMap;
-		this.lightMapIntensity = source.lightMapIntensity;
-
-		this.aoMap = source.aoMap;
-		this.aoMapIntensity = source.aoMapIntensity;
-
-		this.specularMap = source.specularMap;
-
-		this.alphaMap = source.alphaMap;
-
-		this.envMap = source.envMap;
-		this.combine = source.combine;
-		this.reflectivity = source.reflectivity;
-		this.refractionRatio = source.refractionRatio;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-		this.wireframeLinecap = source.wireframeLinecap;
-		this.wireframeLinejoin = source.wireframeLinejoin;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author jonobr1 / http://jonobr1.com/
-	 */
-
-	function Mesh( geometry, material ) {
-
-		Object3D.call( this );
-
-		this.type = 'Mesh';
-
-		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
-		this.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } );
-
-		this.drawMode = TrianglesDrawMode;
-
-		this.updateMorphTargets();
-
-	}
-
-	Mesh.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Mesh,
-
-		isMesh: true,
-
-		setDrawMode: function ( value ) {
-
-			this.drawMode = value;
-
-		},
-
-		copy: function ( source ) {
-
-			Object3D.prototype.copy.call( this, source );
-
-			this.drawMode = source.drawMode;
-
-			if ( source.morphTargetInfluences !== undefined ) {
-
-				this.morphTargetInfluences = source.morphTargetInfluences.slice();
-
-			}
-
-			if ( source.morphTargetDictionary !== undefined ) {
-
-				this.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary );
-
-			}
-
-			return this;
-
-		},
-
-		updateMorphTargets: function () {
-
-			var geometry = this.geometry;
-			var m, ml, name;
-
-			if ( geometry.isBufferGeometry ) {
-
-				var morphAttributes = geometry.morphAttributes;
-				var keys = Object.keys( morphAttributes );
-
-				if ( keys.length > 0 ) {
-
-					var morphAttribute = morphAttributes[ keys[ 0 ] ];
-
-					if ( morphAttribute !== undefined ) {
-
-						this.morphTargetInfluences = [];
-						this.morphTargetDictionary = {};
-
-						for ( m = 0, ml = morphAttribute.length; m < ml; m ++ ) {
-
-							name = morphAttribute[ m ].name || String( m );
-
-							this.morphTargetInfluences.push( 0 );
-							this.morphTargetDictionary[ name ] = m;
-
-						}
-
-					}
-
-				}
-
-			} else {
-
-				var morphTargets = geometry.morphTargets;
-
-				if ( morphTargets !== undefined && morphTargets.length > 0 ) {
-
-					console.error( 'THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );
-
-				}
-
-			}
-
-		},
-
-		raycast: ( function () {
-
-			var inverseMatrix = new Matrix4();
-			var ray = new Ray();
-			var sphere = new Sphere();
-
-			var vA = new Vector3();
-			var vB = new Vector3();
-			var vC = new Vector3();
-
-			var tempA = new Vector3();
-			var tempB = new Vector3();
-			var tempC = new Vector3();
-
-			var morphA = new Vector3();
-			var morphB = new Vector3();
-			var morphC = new Vector3();
-
-			var uvA = new Vector2();
-			var uvB = new Vector2();
-			var uvC = new Vector2();
-
-			var intersectionPoint = new Vector3();
-			var intersectionPointWorld = new Vector3();
-
-			function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {
-
-				var intersect;
-
-				if ( material.side === BackSide ) {
-
-					intersect = ray.intersectTriangle( pC, pB, pA, true, point );
-
-				} else {
-
-					intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );
-
-				}
-
-				if ( intersect === null ) return null;
-
-				intersectionPointWorld.copy( point );
-				intersectionPointWorld.applyMatrix4( object.matrixWorld );
-
-				var distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );
-
-				if ( distance < raycaster.near || distance > raycaster.far ) return null;
-
-				return {
-					distance: distance,
-					point: intersectionPointWorld.clone(),
-					object: object
-				};
-
-			}
-
-			function checkBufferGeometryIntersection( object, material, raycaster, ray, position, morphPosition, uv, a, b, c ) {
-
-				vA.fromBufferAttribute( position, a );
-				vB.fromBufferAttribute( position, b );
-				vC.fromBufferAttribute( position, c );
-
-				var morphInfluences = object.morphTargetInfluences;
-
-				if ( material.morphTargets && morphPosition && morphInfluences ) {
-
-					morphA.set( 0, 0, 0 );
-					morphB.set( 0, 0, 0 );
-					morphC.set( 0, 0, 0 );
-
-					for ( var i = 0, il = morphPosition.length; i < il; i ++ ) {
-
-						var influence = morphInfluences[ i ];
-						var morphAttribute = morphPosition[ i ];
-
-						if ( influence === 0 ) continue;
-
-						tempA.fromBufferAttribute( morphAttribute, a );
-						tempB.fromBufferAttribute( morphAttribute, b );
-						tempC.fromBufferAttribute( morphAttribute, c );
-
-						morphA.addScaledVector( tempA.sub( vA ), influence );
-						morphB.addScaledVector( tempB.sub( vB ), influence );
-						morphC.addScaledVector( tempC.sub( vC ), influence );
-
-					}
-
-					vA.add( morphA );
-					vB.add( morphB );
-					vC.add( morphC );
-
-				}
-
-				var intersection = checkIntersection( object, material, raycaster, ray, vA, vB, vC, intersectionPoint );
-
-				if ( intersection ) {
-
-					if ( uv ) {
-
-						uvA.fromBufferAttribute( uv, a );
-						uvB.fromBufferAttribute( uv, b );
-						uvC.fromBufferAttribute( uv, c );
-
-						intersection.uv = Triangle.getUV( intersectionPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2() );
-
-					}
-
-					var face = new Face3( a, b, c );
-					Triangle.getNormal( vA, vB, vC, face.normal );
-
-					intersection.face = face;
-
-				}
-
-				return intersection;
-
-			}
-
-			return function raycast( raycaster, intersects ) {
-
-				var geometry = this.geometry;
-				var material = this.material;
-				var matrixWorld = this.matrixWorld;
-
-				if ( material === undefined ) return;
-
-				// Checking boundingSphere distance to ray
-
-				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
-
-				sphere.copy( geometry.boundingSphere );
-				sphere.applyMatrix4( matrixWorld );
-
-				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
-
-				//
-
-				inverseMatrix.getInverse( matrixWorld );
-				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
-
-				// Check boundingBox before continuing
-
-				if ( geometry.boundingBox !== null ) {
-
-					if ( ray.intersectsBox( geometry.boundingBox ) === false ) return;
-
-				}
-
-				var intersection;
-
-				if ( geometry.isBufferGeometry ) {
-
-					var a, b, c;
-					var index = geometry.index;
-					var position = geometry.attributes.position;
-					var morphPosition = geometry.morphAttributes.position;
-					var uv = geometry.attributes.uv;
-					var groups = geometry.groups;
-					var drawRange = geometry.drawRange;
-					var i, j, il, jl;
-					var group, groupMaterial;
-					var start, end;
-
-					if ( index !== null ) {
-
-						// indexed buffer geometry
-
-						if ( Array.isArray( material ) ) {
-
-							for ( i = 0, il = groups.length; i < il; i ++ ) {
-
-								group = groups[ i ];
-								groupMaterial = material[ group.materialIndex ];
-
-								start = Math.max( group.start, drawRange.start );
-								end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );
-
-								for ( j = start, jl = end; j < jl; j += 3 ) {
-
-									a = index.getX( j );
-									b = index.getX( j + 1 );
-									c = index.getX( j + 2 );
-
-									intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, morphPosition, uv, a, b, c );
-
-									if ( intersection ) {
-
-										intersection.faceIndex = Math.floor( j / 3 ); // triangle number in indexed buffer semantics
-										intersection.face.materialIndex = group.materialIndex;
-										intersects.push( intersection );
-
-									}
-
-								}
-
-							}
-
-						} else {
-
-							start = Math.max( 0, drawRange.start );
-							end = Math.min( index.count, ( drawRange.start + drawRange.count ) );
-
-							for ( i = start, il = end; i < il; i += 3 ) {
-
-								a = index.getX( i );
-								b = index.getX( i + 1 );
-								c = index.getX( i + 2 );
-
-								intersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, morphPosition, uv, a, b, c );
-
-								if ( intersection ) {
-
-									intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indexed buffer semantics
-									intersects.push( intersection );
-
-								}
-
-							}
-
-						}
-
-					} else if ( position !== undefined ) {
-
-						// non-indexed buffer geometry
-
-						if ( Array.isArray( material ) ) {
-
-							for ( i = 0, il = groups.length; i < il; i ++ ) {
-
-								group = groups[ i ];
-								groupMaterial = material[ group.materialIndex ];
-
-								start = Math.max( group.start, drawRange.start );
-								end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) );
-
-								for ( j = start, jl = end; j < jl; j += 3 ) {
-
-									a = j;
-									b = j + 1;
-									c = j + 2;
-
-									intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, ray, position, morphPosition, uv, a, b, c );
-
-									if ( intersection ) {
-
-										intersection.faceIndex = Math.floor( j / 3 ); // triangle number in non-indexed buffer semantics
-										intersection.face.materialIndex = group.materialIndex;
-										intersects.push( intersection );
-
-									}
-
-								}
-
-							}
-
-						} else {
-
-							start = Math.max( 0, drawRange.start );
-							end = Math.min( position.count, ( drawRange.start + drawRange.count ) );
-
-							for ( i = start, il = end; i < il; i += 3 ) {
-
-								a = i;
-								b = i + 1;
-								c = i + 2;
-
-								intersection = checkBufferGeometryIntersection( this, material, raycaster, ray, position, morphPosition, uv, a, b, c );
-
-								if ( intersection ) {
-
-									intersection.faceIndex = Math.floor( i / 3 ); // triangle number in non-indexed buffer semantics
-									intersects.push( intersection );
-
-								}
-
-							}
-
-						}
-
-					}
-
-				} else if ( geometry.isGeometry ) {
-
-					var fvA, fvB, fvC;
-					var isMultiMaterial = Array.isArray( material );
-
-					var vertices = geometry.vertices;
-					var faces = geometry.faces;
-					var uvs;
-
-					var faceVertexUvs = geometry.faceVertexUvs[ 0 ];
-					if ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;
-
-					for ( var f = 0, fl = faces.length; f < fl; f ++ ) {
-
-						var face = faces[ f ];
-						var faceMaterial = isMultiMaterial ? material[ face.materialIndex ] : material;
-
-						if ( faceMaterial === undefined ) continue;
-
-						fvA = vertices[ face.a ];
-						fvB = vertices[ face.b ];
-						fvC = vertices[ face.c ];
-
-						intersection = checkIntersection( this, faceMaterial, raycaster, ray, fvA, fvB, fvC, intersectionPoint );
-
-						if ( intersection ) {
-
-							if ( uvs && uvs[ f ] ) {
-
-								var uvs_f = uvs[ f ];
-								uvA.copy( uvs_f[ 0 ] );
-								uvB.copy( uvs_f[ 1 ] );
-								uvC.copy( uvs_f[ 2 ] );
-
-								intersection.uv = Triangle.getUV( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC, new Vector2() );
-
-							}
-
-							intersection.face = face;
-							intersection.faceIndex = f;
-							intersects.push( intersection );
-
-						}
-
-					}
-
-				}
-
-			};
-
-		}() ),
-
-		clone: function () {
-
-			return new this.constructor( this.geometry, this.material ).copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLBackground( renderer, state, objects, premultipliedAlpha ) {
-
-		var clearColor = new Color( 0x000000 );
-		var clearAlpha = 0;
-
-		var planeMesh;
-		var boxMesh;
-		// Store the current background texture and its `version`
-		// so we can recompile the material accordingly.
-		var currentBackground = null;
-		var currentBackgroundVersion = 0;
-
-		function render( renderList, scene, camera, forceClear ) {
-
-			var background = scene.background;
-
-			// Ignore background in AR
-			// TODO: Reconsider this.
-
-			var vr = renderer.vr;
-			var session = vr.getSession && vr.getSession();
-
-			if ( session && session.environmentBlendMode === 'additive' ) {
-
-				background = null;
-
-			}
-
-			if ( background === null ) {
-
-				setClear( clearColor, clearAlpha );
-				currentBackground = null;
-				currentBackgroundVersion = 0;
-
-			} else if ( background && background.isColor ) {
-
-				setClear( background, 1 );
-				forceClear = true;
-				currentBackground = null;
-				currentBackgroundVersion = 0;
-
-			}
-
-			if ( renderer.autoClear || forceClear ) {
-
-				renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );
-
-			}
-
-			if ( background && ( background.isCubeTexture || background.isWebGLRenderTargetCube ) ) {
-
-				if ( boxMesh === undefined ) {
-
-					boxMesh = new Mesh(
-						new BoxBufferGeometry( 1, 1, 1 ),
-						new ShaderMaterial( {
-							type: 'BackgroundCubeMaterial',
-							uniforms: cloneUniforms( ShaderLib.cube.uniforms ),
-							vertexShader: ShaderLib.cube.vertexShader,
-							fragmentShader: ShaderLib.cube.fragmentShader,
-							side: BackSide,
-							depthTest: false,
-							depthWrite: false,
-							fog: false
-						} )
-					);
-
-					boxMesh.geometry.removeAttribute( 'normal' );
-					boxMesh.geometry.removeAttribute( 'uv' );
-
-					boxMesh.onBeforeRender = function ( renderer, scene, camera ) {
-
-						this.matrixWorld.copyPosition( camera.matrixWorld );
-
-					};
-
-					// enable code injection for non-built-in material
-					Object.defineProperty( boxMesh.material, 'map', {
-
-						get: function () {
-
-							return this.uniforms.tCube.value;
-
-						}
-
-					} );
-
-					objects.update( boxMesh );
-
-				}
-
-				var texture = background.isWebGLRenderTargetCube ? background.texture : background;
-				boxMesh.material.uniforms.tCube.value = texture;
-				boxMesh.material.uniforms.tFlip.value = ( background.isWebGLRenderTargetCube ) ? 1 : - 1;
-
-				if ( currentBackground !== background ||
-				     currentBackgroundVersion !== texture.version ) {
-
-					boxMesh.material.needsUpdate = true;
-
-					currentBackground = background;
-					currentBackgroundVersion = texture.version;
-
-				}
-
-				// push to the pre-sorted opaque render list
-				renderList.unshift( boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null );
-
-			} else if ( background && background.isTexture ) {
-
-				if ( planeMesh === undefined ) {
-
-					planeMesh = new Mesh(
-						new PlaneBufferGeometry( 2, 2 ),
-						new ShaderMaterial( {
-							type: 'BackgroundMaterial',
-							uniforms: cloneUniforms( ShaderLib.background.uniforms ),
-							vertexShader: ShaderLib.background.vertexShader,
-							fragmentShader: ShaderLib.background.fragmentShader,
-							side: FrontSide,
-							depthTest: false,
-							depthWrite: false,
-							fog: false
-						} )
-					);
-
-					planeMesh.geometry.removeAttribute( 'normal' );
-
-					// enable code injection for non-built-in material
-					Object.defineProperty( planeMesh.material, 'map', {
-
-						get: function () {
-
-							return this.uniforms.t2D.value;
-
-						}
-
-					} );
-
-					objects.update( planeMesh );
-
-				}
-
-				planeMesh.material.uniforms.t2D.value = background;
-
-				if ( background.matrixAutoUpdate === true ) {
-
-					background.updateMatrix();
-
-				}
-
-				planeMesh.material.uniforms.uvTransform.value.copy( background.matrix );
-
-				if ( currentBackground !== background ||
-					   currentBackgroundVersion !== background.version ) {
-
-					planeMesh.material.needsUpdate = true;
-
-					currentBackground = background;
-					currentBackgroundVersion = background.version;
-
-				}
-
-
-				// push to the pre-sorted opaque render list
-				renderList.unshift( planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null );
-
-			}
-
-		}
-
-		function setClear( color, alpha ) {
-
-			state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );
-
-		}
-
-		return {
-
-			getClearColor: function () {
-
-				return clearColor;
-
-			},
-			setClearColor: function ( color, alpha ) {
-
-				clearColor.set( color );
-				clearAlpha = alpha !== undefined ? alpha : 1;
-				setClear( clearColor, clearAlpha );
-
-			},
-			getClearAlpha: function () {
-
-				return clearAlpha;
-
-			},
-			setClearAlpha: function ( alpha ) {
-
-				clearAlpha = alpha;
-				setClear( clearColor, clearAlpha );
-
-			},
-			render: render
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLBufferRenderer( gl, extensions, info, capabilities ) {
-
-		var mode;
-
-		function setMode( value ) {
-
-			mode = value;
-
-		}
-
-		function render( start, count ) {
-
-			gl.drawArrays( mode, start, count );
-
-			info.update( count, mode );
-
-		}
-
-		function renderInstances( geometry, start, count ) {
-
-			var extension;
-
-			if ( capabilities.isWebGL2 ) {
-
-				extension = gl;
-
-			} else {
-
-				extension = extensions.get( 'ANGLE_instanced_arrays' );
-
-				if ( extension === null ) {
-
-					console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
-					return;
-
-				}
-
-			}
-
-			extension[ capabilities.isWebGL2 ? 'drawArraysInstanced' : 'drawArraysInstancedANGLE' ]( mode, start, count, geometry.maxInstancedCount );
-
-			info.update( count, mode, geometry.maxInstancedCount );
-
-		}
-
-		//
-
-		this.setMode = setMode;
-		this.render = render;
-		this.renderInstances = renderInstances;
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLCapabilities( gl, extensions, parameters ) {
-
-		var maxAnisotropy;
-
-		function getMaxAnisotropy() {
-
-			if ( maxAnisotropy !== undefined ) return maxAnisotropy;
-
-			var extension = extensions.get( 'EXT_texture_filter_anisotropic' );
-
-			if ( extension !== null ) {
-
-				maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );
-
-			} else {
-
-				maxAnisotropy = 0;
-
-			}
-
-			return maxAnisotropy;
-
-		}
-
-		function getMaxPrecision( precision ) {
-
-			if ( precision === 'highp' ) {
-
-				if ( gl.getShaderPrecisionFormat( 35633, 36338 ).precision > 0 &&
-				     gl.getShaderPrecisionFormat( 35632, 36338 ).precision > 0 ) {
-
-					return 'highp';
-
-				}
-
-				precision = 'mediump';
-
-			}
-
-			if ( precision === 'mediump' ) {
-
-				if ( gl.getShaderPrecisionFormat( 35633, 36337 ).precision > 0 &&
-				     gl.getShaderPrecisionFormat( 35632, 36337 ).precision > 0 ) {
-
-					return 'mediump';
-
-				}
-
-			}
-
-			return 'lowp';
-
-		}
-
-		var isWebGL2 = typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext;
-
-		var precision = parameters.precision !== undefined ? parameters.precision : 'highp';
-		var maxPrecision = getMaxPrecision( precision );
-
-		if ( maxPrecision !== precision ) {
-
-			console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );
-			precision = maxPrecision;
-
-		}
-
-		var logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;
-
-		var maxTextures = gl.getParameter( 34930 );
-		var maxVertexTextures = gl.getParameter( 35660 );
-		var maxTextureSize = gl.getParameter( 3379 );
-		var maxCubemapSize = gl.getParameter( 34076 );
-
-		var maxAttributes = gl.getParameter( 34921 );
-		var maxVertexUniforms = gl.getParameter( 36347 );
-		var maxVaryings = gl.getParameter( 36348 );
-		var maxFragmentUniforms = gl.getParameter( 36349 );
-
-		var vertexTextures = maxVertexTextures > 0;
-		var floatFragmentTextures = isWebGL2 || !! extensions.get( 'OES_texture_float' );
-		var floatVertexTextures = vertexTextures && floatFragmentTextures;
-
-		var maxSamples = isWebGL2 ? gl.getParameter( 36183 ) : 0;
-
-		return {
-
-			isWebGL2: isWebGL2,
-
-			getMaxAnisotropy: getMaxAnisotropy,
-			getMaxPrecision: getMaxPrecision,
-
-			precision: precision,
-			logarithmicDepthBuffer: logarithmicDepthBuffer,
-
-			maxTextures: maxTextures,
-			maxVertexTextures: maxVertexTextures,
-			maxTextureSize: maxTextureSize,
-			maxCubemapSize: maxCubemapSize,
-
-			maxAttributes: maxAttributes,
-			maxVertexUniforms: maxVertexUniforms,
-			maxVaryings: maxVaryings,
-			maxFragmentUniforms: maxFragmentUniforms,
-
-			vertexTextures: vertexTextures,
-			floatFragmentTextures: floatFragmentTextures,
-			floatVertexTextures: floatVertexTextures,
-
-			maxSamples: maxSamples
-
-		};
-
-	}
-
-	/**
-	 * @author tschw
-	 */
-
-	function WebGLClipping() {
-
-		var scope = this,
-
-			globalState = null,
-			numGlobalPlanes = 0,
-			localClippingEnabled = false,
-			renderingShadows = false,
-
-			plane = new Plane(),
-			viewNormalMatrix = new Matrix3(),
-
-			uniform = { value: null, needsUpdate: false };
-
-		this.uniform = uniform;
-		this.numPlanes = 0;
-		this.numIntersection = 0;
-
-		this.init = function ( planes, enableLocalClipping, camera ) {
-
-			var enabled =
-				planes.length !== 0 ||
-				enableLocalClipping ||
-				// enable state of previous frame - the clipping code has to
-				// run another frame in order to reset the state:
-				numGlobalPlanes !== 0 ||
-				localClippingEnabled;
-
-			localClippingEnabled = enableLocalClipping;
-
-			globalState = projectPlanes( planes, camera, 0 );
-			numGlobalPlanes = planes.length;
-
-			return enabled;
-
-		};
-
-		this.beginShadows = function () {
-
-			renderingShadows = true;
-			projectPlanes( null );
-
-		};
-
-		this.endShadows = function () {
-
-			renderingShadows = false;
-			resetGlobalState();
-
-		};
-
-		this.setState = function ( planes, clipIntersection, clipShadows, camera, cache, fromCache ) {
-
-			if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {
-
-				// there's no local clipping
-
-				if ( renderingShadows ) {
-
-					// there's no global clipping
-
-					projectPlanes( null );
-
-				} else {
-
-					resetGlobalState();
-
-				}
-
-			} else {
-
-				var nGlobal = renderingShadows ? 0 : numGlobalPlanes,
-					lGlobal = nGlobal * 4,
-
-					dstArray = cache.clippingState || null;
-
-				uniform.value = dstArray; // ensure unique state
-
-				dstArray = projectPlanes( planes, camera, lGlobal, fromCache );
-
-				for ( var i = 0; i !== lGlobal; ++ i ) {
-
-					dstArray[ i ] = globalState[ i ];
-
-				}
-
-				cache.clippingState = dstArray;
-				this.numIntersection = clipIntersection ? this.numPlanes : 0;
-				this.numPlanes += nGlobal;
-
-			}
-
-
-		};
-
-		function resetGlobalState() {
-
-			if ( uniform.value !== globalState ) {
-
-				uniform.value = globalState;
-				uniform.needsUpdate = numGlobalPlanes > 0;
-
-			}
-
-			scope.numPlanes = numGlobalPlanes;
-			scope.numIntersection = 0;
-
-		}
-
-		function projectPlanes( planes, camera, dstOffset, skipTransform ) {
-
-			var nPlanes = planes !== null ? planes.length : 0,
-				dstArray = null;
-
-			if ( nPlanes !== 0 ) {
-
-				dstArray = uniform.value;
-
-				if ( skipTransform !== true || dstArray === null ) {
-
-					var flatSize = dstOffset + nPlanes * 4,
-						viewMatrix = camera.matrixWorldInverse;
-
-					viewNormalMatrix.getNormalMatrix( viewMatrix );
-
-					if ( dstArray === null || dstArray.length < flatSize ) {
-
-						dstArray = new Float32Array( flatSize );
-
-					}
-
-					for ( var i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {
-
-						plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );
-
-						plane.normal.toArray( dstArray, i4 );
-						dstArray[ i4 + 3 ] = plane.constant;
-
-					}
-
-				}
-
-				uniform.value = dstArray;
-				uniform.needsUpdate = true;
-
-			}
-
-			scope.numPlanes = nPlanes;
-
-			return dstArray;
-
-		}
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLExtensions( gl ) {
-
-		var extensions = {};
-
-		return {
-
-			get: function ( name ) {
-
-				if ( extensions[ name ] !== undefined ) {
-
-					return extensions[ name ];
-
-				}
-
-				var extension;
-
-				switch ( name ) {
-
-					case 'WEBGL_depth_texture':
-						extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );
-						break;
-
-					case 'EXT_texture_filter_anisotropic':
-						extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );
-						break;
-
-					case 'WEBGL_compressed_texture_s3tc':
-						extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );
-						break;
-
-					case 'WEBGL_compressed_texture_pvrtc':
-						extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
-						break;
-
-					default:
-						extension = gl.getExtension( name );
-
-				}
-
-				if ( extension === null ) {
-
-					console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );
-
-				}
-
-				extensions[ name ] = extension;
-
-				return extension;
-
-			}
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLGeometries( gl, attributes, info ) {
-
-		var geometries = {};
-		var wireframeAttributes = {};
-
-		function onGeometryDispose( event ) {
-
-			var geometry = event.target;
-			var buffergeometry = geometries[ geometry.id ];
-
-			if ( buffergeometry.index !== null ) {
-
-				attributes.remove( buffergeometry.index );
-
-			}
-
-			for ( var name in buffergeometry.attributes ) {
-
-				attributes.remove( buffergeometry.attributes[ name ] );
-
-			}
-
-			geometry.removeEventListener( 'dispose', onGeometryDispose );
-
-			delete geometries[ geometry.id ];
-
-			var attribute = wireframeAttributes[ buffergeometry.id ];
-
-			if ( attribute ) {
-
-				attributes.remove( attribute );
-				delete wireframeAttributes[ buffergeometry.id ];
-
-			}
-
-			//
-
-			info.memory.geometries --;
-
-		}
-
-		function get( object, geometry ) {
-
-			var buffergeometry = geometries[ geometry.id ];
-
-			if ( buffergeometry ) return buffergeometry;
-
-			geometry.addEventListener( 'dispose', onGeometryDispose );
-
-			if ( geometry.isBufferGeometry ) {
-
-				buffergeometry = geometry;
-
-			} else if ( geometry.isGeometry ) {
-
-				if ( geometry._bufferGeometry === undefined ) {
-
-					geometry._bufferGeometry = new BufferGeometry().setFromObject( object );
-
-				}
-
-				buffergeometry = geometry._bufferGeometry;
-
-			}
-
-			geometries[ geometry.id ] = buffergeometry;
-
-			info.memory.geometries ++;
-
-			return buffergeometry;
-
-		}
-
-		function update( geometry ) {
-
-			var index = geometry.index;
-			var geometryAttributes = geometry.attributes;
-
-			if ( index !== null ) {
-
-				attributes.update( index, 34963 );
-
-			}
-
-			for ( var name in geometryAttributes ) {
-
-				attributes.update( geometryAttributes[ name ], 34962 );
-
-			}
-
-			// morph targets
-
-			var morphAttributes = geometry.morphAttributes;
-
-			for ( var name in morphAttributes ) {
-
-				var array = morphAttributes[ name ];
-
-				for ( var i = 0, l = array.length; i < l; i ++ ) {
-
-					attributes.update( array[ i ], 34962 );
-
-				}
-
-			}
-
-		}
-
-		function getWireframeAttribute( geometry ) {
-
-			var attribute = wireframeAttributes[ geometry.id ];
-
-			if ( attribute ) return attribute;
-
-			var indices = [];
-
-			var geometryIndex = geometry.index;
-			var geometryAttributes = geometry.attributes;
-
-			// console.time( 'wireframe' );
-
-			if ( geometryIndex !== null ) {
-
-				var array = geometryIndex.array;
-
-				for ( var i = 0, l = array.length; i < l; i += 3 ) {
-
-					var a = array[ i + 0 ];
-					var b = array[ i + 1 ];
-					var c = array[ i + 2 ];
-
-					indices.push( a, b, b, c, c, a );
-
-				}
-
-			} else {
-
-				var array = geometryAttributes.position.array;
-
-				for ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {
-
-					var a = i + 0;
-					var b = i + 1;
-					var c = i + 2;
-
-					indices.push( a, b, b, c, c, a );
-
-				}
-
-			}
-
-			// console.timeEnd( 'wireframe' );
-
-			attribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );
-
-			attributes.update( attribute, 34963 );
-
-			wireframeAttributes[ geometry.id ] = attribute;
-
-			return attribute;
-
-		}
-
-		return {
-
-			get: get,
-			update: update,
-
-			getWireframeAttribute: getWireframeAttribute
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLIndexedBufferRenderer( gl, extensions, info, capabilities ) {
-
-		var mode;
-
-		function setMode( value ) {
-
-			mode = value;
-
-		}
-
-		var type, bytesPerElement;
-
-		function setIndex( value ) {
-
-			type = value.type;
-			bytesPerElement = value.bytesPerElement;
-
-		}
-
-		function render( start, count ) {
-
-			gl.drawElements( mode, count, type, start * bytesPerElement );
-
-			info.update( count, mode );
-
-		}
-
-		function renderInstances( geometry, start, count ) {
-
-			var extension;
-
-			if ( capabilities.isWebGL2 ) {
-
-				extension = gl;
-
-			} else {
-
-				var extension = extensions.get( 'ANGLE_instanced_arrays' );
-
-				if ( extension === null ) {
-
-					console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
-					return;
-
-				}
-
-			}
-
-			extension[ capabilities.isWebGL2 ? 'drawElementsInstanced' : 'drawElementsInstancedANGLE' ]( mode, count, type, start * bytesPerElement, geometry.maxInstancedCount );
-
-			info.update( count, mode, geometry.maxInstancedCount );
-
-		}
-
-		//
-
-		this.setMode = setMode;
-		this.setIndex = setIndex;
-		this.render = render;
-		this.renderInstances = renderInstances;
-
-	}
-
-	/**
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function WebGLInfo( gl ) {
-
-		var memory = {
-			geometries: 0,
-			textures: 0
-		};
-
-		var render = {
-			frame: 0,
-			calls: 0,
-			triangles: 0,
-			points: 0,
-			lines: 0
-		};
-
-		function update( count, mode, instanceCount ) {
-
-			instanceCount = instanceCount || 1;
-
-			render.calls ++;
-
-			switch ( mode ) {
-
-				case 4:
-					render.triangles += instanceCount * ( count / 3 );
-					break;
-
-				case 5:
-				case 6:
-					render.triangles += instanceCount * ( count - 2 );
-					break;
-
-				case 1:
-					render.lines += instanceCount * ( count / 2 );
-					break;
-
-				case 3:
-					render.lines += instanceCount * ( count - 1 );
-					break;
-
-				case 2:
-					render.lines += instanceCount * count;
-					break;
-
-				case 0:
-					render.points += instanceCount * count;
-					break;
-
-				default:
-					console.error( 'THREE.WebGLInfo: Unknown draw mode:', mode );
-					break;
-
-			}
-
-		}
-
-		function reset() {
-
-			render.frame ++;
-			render.calls = 0;
-			render.triangles = 0;
-			render.points = 0;
-			render.lines = 0;
-
-		}
-
-		return {
-			memory: memory,
-			render: render,
-			programs: null,
-			autoReset: true,
-			reset: reset,
-			update: update
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function absNumericalSort( a, b ) {
-
-		return Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] );
-
-	}
-
-	function WebGLMorphtargets( gl ) {
-
-		var influencesList = {};
-		var morphInfluences = new Float32Array( 8 );
-
-		function update( object, geometry, material, program ) {
-
-			var objectInfluences = object.morphTargetInfluences;
-
-			var length = objectInfluences.length;
-
-			var influences = influencesList[ geometry.id ];
-
-			if ( influences === undefined ) {
-
-				// initialise list
-
-				influences = [];
-
-				for ( var i = 0; i < length; i ++ ) {
-
-					influences[ i ] = [ i, 0 ];
-
-				}
-
-				influencesList[ geometry.id ] = influences;
-
-			}
-
-			var morphTargets = material.morphTargets && geometry.morphAttributes.position;
-			var morphNormals = material.morphNormals && geometry.morphAttributes.normal;
-
-			// Remove current morphAttributes
-
-			for ( var i = 0; i < length; i ++ ) {
-
-				var influence = influences[ i ];
-
-				if ( influence[ 1 ] !== 0 ) {
-
-					if ( morphTargets ) geometry.removeAttribute( 'morphTarget' + i );
-					if ( morphNormals ) geometry.removeAttribute( 'morphNormal' + i );
-
-				}
-
-			}
-
-			// Collect influences
-
-			for ( var i = 0; i < length; i ++ ) {
-
-				var influence = influences[ i ];
-
-				influence[ 0 ] = i;
-				influence[ 1 ] = objectInfluences[ i ];
-
-			}
-
-			influences.sort( absNumericalSort );
-
-			// Add morphAttributes
-
-			for ( var i = 0; i < 8; i ++ ) {
-
-				var influence = influences[ i ];
-
-				if ( influence ) {
-
-					var index = influence[ 0 ];
-					var value = influence[ 1 ];
-
-					if ( value ) {
-
-						if ( morphTargets ) geometry.addAttribute( 'morphTarget' + i, morphTargets[ index ] );
-						if ( morphNormals ) geometry.addAttribute( 'morphNormal' + i, morphNormals[ index ] );
-
-						morphInfluences[ i ] = value;
-						continue;
-
-					}
-
-				}
-
-				morphInfluences[ i ] = 0;
-
-			}
-
-			program.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences );
-
-		}
-
-		return {
-
-			update: update
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLObjects( geometries, info ) {
-
-		var updateList = {};
-
-		function update( object ) {
-
-			var frame = info.render.frame;
-
-			var geometry = object.geometry;
-			var buffergeometry = geometries.get( object, geometry );
-
-			// Update once per frame
-
-			if ( updateList[ buffergeometry.id ] !== frame ) {
-
-				if ( geometry.isGeometry ) {
-
-					buffergeometry.updateFromObject( object );
-
-				}
-
-				geometries.update( buffergeometry );
-
-				updateList[ buffergeometry.id ] = frame;
-
-			}
-
-			return buffergeometry;
-
-		}
-
-		function dispose() {
-
-			updateList = {};
-
-		}
-
-		return {
-
-			update: update,
-			dispose: dispose
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {
-
-		images = images !== undefined ? images : [];
-		mapping = mapping !== undefined ? mapping : CubeReflectionMapping;
-		format = format !== undefined ? format : RGBFormat;
-
-		Texture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
-
-		this.flipY = false;
-
-	}
-
-	CubeTexture.prototype = Object.create( Texture.prototype );
-	CubeTexture.prototype.constructor = CubeTexture;
-
-	CubeTexture.prototype.isCubeTexture = true;
-
-	Object.defineProperty( CubeTexture.prototype, 'images', {
-
-		get: function () {
-
-			return this.image;
-
-		},
-
-		set: function ( value ) {
-
-			this.image = value;
-
-		}
-
-	} );
-
-	/**
-	 * @author Takahiro https://github.com/takahirox
-	 */
-
-	function DataTexture2DArray( data, width, height, depth ) {
-
-		Texture.call( this, null );
-
-		this.image = { data: data, width: width, height: height, depth: depth };
-
-		this.magFilter = NearestFilter;
-		this.minFilter = NearestFilter;
-
-		this.wrapR = ClampToEdgeWrapping;
-
-		this.generateMipmaps = false;
-		this.flipY = false;
-
-	}
-
-	DataTexture2DArray.prototype = Object.create( Texture.prototype );
-	DataTexture2DArray.prototype.constructor = DataTexture2DArray;
-	DataTexture2DArray.prototype.isDataTexture2DArray = true;
-
-	/**
-	 * @author Artur Trzesiok
-	 */
-
-	function DataTexture3D( data, width, height, depth ) {
-
-		// We're going to add .setXXX() methods for setting properties later.
-		// Users can still set in DataTexture3D directly.
-		//
-		//	var texture = new THREE.DataTexture3D( data, width, height, depth );
-		// 	texture.anisotropy = 16;
-		//
-		// See #14839
-
-		Texture.call( this, null );
-
-		this.image = { data: data, width: width, height: height, depth: depth };
-
-		this.magFilter = NearestFilter;
-		this.minFilter = NearestFilter;
-
-		this.wrapR = ClampToEdgeWrapping;
-
-		this.generateMipmaps = false;
-		this.flipY = false;
-
-	}
-
-	DataTexture3D.prototype = Object.create( Texture.prototype );
-	DataTexture3D.prototype.constructor = DataTexture3D;
-	DataTexture3D.prototype.isDataTexture3D = true;
-
-	/**
-	 * @author tschw
-	 * @author Mugen87 / https://github.com/Mugen87
-	 * @author mrdoob / http://mrdoob.com/
-	 *
-	 * Uniforms of a program.
-	 * Those form a tree structure with a special top-level container for the root,
-	 * which you get by calling 'new WebGLUniforms( gl, program )'.
-	 *
-	 *
-	 * Properties of inner nodes including the top-level container:
-	 *
-	 * .seq - array of nested uniforms
-	 * .map - nested uniforms by name
-	 *
-	 *
-	 * Methods of all nodes except the top-level container:
-	 *
-	 * .setValue( gl, value, [textures] )
-	 *
-	 * 		uploads a uniform value(s)
-	 *  	the 'textures' parameter is needed for sampler uniforms
-	 *
-	 *
-	 * Static methods of the top-level container (textures factorizations):
-	 *
-	 * .upload( gl, seq, values, textures )
-	 *
-	 * 		sets uniforms in 'seq' to 'values[id].value'
-	 *
-	 * .seqWithValue( seq, values ) : filteredSeq
-	 *
-	 * 		filters 'seq' entries with corresponding entry in values
-	 *
-	 *
-	 * Methods of the top-level container (textures factorizations):
-	 *
-	 * .setValue( gl, name, value, textures )
-	 *
-	 * 		sets uniform with  name 'name' to 'value'
-	 *
-	 * .setOptional( gl, obj, prop )
-	 *
-	 * 		like .set for an optional property of the object
-	 *
-	 */
-
-	var emptyTexture = new Texture();
-	var emptyTexture2dArray = new DataTexture2DArray();
-	var emptyTexture3d = new DataTexture3D();
-	var emptyCubeTexture = new CubeTexture();
-
-	// --- Utilities ---
-
-	// Array Caches (provide typed arrays for temporary by size)
-
-	var arrayCacheF32 = [];
-	var arrayCacheI32 = [];
-
-	// Float32Array caches used for uploading Matrix uniforms
-
-	var mat4array = new Float32Array( 16 );
-	var mat3array = new Float32Array( 9 );
-	var mat2array = new Float32Array( 4 );
-
-	// Flattening for arrays of vectors and matrices
-
-	function flatten( array, nBlocks, blockSize ) {
-
-		var firstElem = array[ 0 ];
-
-		if ( firstElem <= 0 || firstElem > 0 ) return array;
-		// unoptimized: ! isNaN( firstElem )
-		// see http://jacksondunstan.com/articles/983
-
-		var n = nBlocks * blockSize,
-			r = arrayCacheF32[ n ];
-
-		if ( r === undefined ) {
-
-			r = new Float32Array( n );
-			arrayCacheF32[ n ] = r;
-
-		}
-
-		if ( nBlocks !== 0 ) {
-
-			firstElem.toArray( r, 0 );
-
-			for ( var i = 1, offset = 0; i !== nBlocks; ++ i ) {
-
-				offset += blockSize;
-				array[ i ].toArray( r, offset );
-
-			}
-
-		}
-
-		return r;
-
-	}
-
-	function arraysEqual( a, b ) {
-
-		if ( a.length !== b.length ) return false;
-
-		for ( var i = 0, l = a.length; i < l; i ++ ) {
-
-			if ( a[ i ] !== b[ i ] ) return false;
-
-		}
-
-		return true;
-
-	}
-
-	function copyArray( a, b ) {
-
-		for ( var i = 0, l = b.length; i < l; i ++ ) {
-
-			a[ i ] = b[ i ];
-
-		}
-
-	}
-
-	// Texture unit allocation
-
-	function allocTexUnits( textures, n ) {
-
-		var r = arrayCacheI32[ n ];
-
-		if ( r === undefined ) {
-
-			r = new Int32Array( n );
-			arrayCacheI32[ n ] = r;
-
-		}
-
-		for ( var i = 0; i !== n; ++ i )
-			r[ i ] = textures.allocateTextureUnit();
-
-		return r;
-
-	}
-
-	// --- Setters ---
-
-	// Note: Defining these methods externally, because they come in a bunch
-	// and this way their names minify.
-
-	// Single scalar
-
-	function setValueV1f( gl, v ) {
-
-		var cache = this.cache;
-
-		if ( cache[ 0 ] === v ) return;
-
-		gl.uniform1f( this.addr, v );
-
-		cache[ 0 ] = v;
-
-	}
-
-	// Single float vector (from flat array or THREE.VectorN)
-
-	function setValueV2f( gl, v ) {
-
-		var cache = this.cache;
-
-		if ( v.x !== undefined ) {
-
-			if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y ) {
-
-				gl.uniform2f( this.addr, v.x, v.y );
-
-				cache[ 0 ] = v.x;
-				cache[ 1 ] = v.y;
-
-			}
-
-		} else {
-
-			if ( arraysEqual( cache, v ) ) return;
-
-			gl.uniform2fv( this.addr, v );
-
-			copyArray( cache, v );
-
-		}
-
-	}
-
-	function setValueV3f( gl, v ) {
-
-		var cache = this.cache;
-
-		if ( v.x !== undefined ) {
-
-			if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z ) {
-
-				gl.uniform3f( this.addr, v.x, v.y, v.z );
-
-				cache[ 0 ] = v.x;
-				cache[ 1 ] = v.y;
-				cache[ 2 ] = v.z;
-
-			}
-
-		} else if ( v.r !== undefined ) {
-
-			if ( cache[ 0 ] !== v.r || cache[ 1 ] !== v.g || cache[ 2 ] !== v.b ) {
-
-				gl.uniform3f( this.addr, v.r, v.g, v.b );
-
-				cache[ 0 ] = v.r;
-				cache[ 1 ] = v.g;
-				cache[ 2 ] = v.b;
-
-			}
-
-		} else {
-
-			if ( arraysEqual( cache, v ) ) return;
-
-			gl.uniform3fv( this.addr, v );
-
-			copyArray( cache, v );
-
-		}
-
-	}
-
-	function setValueV4f( gl, v ) {
-
-		var cache = this.cache;
-
-		if ( v.x !== undefined ) {
-
-			if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z || cache[ 3 ] !== v.w ) {
-
-				gl.uniform4f( this.addr, v.x, v.y, v.z, v.w );
-
-				cache[ 0 ] = v.x;
-				cache[ 1 ] = v.y;
-				cache[ 2 ] = v.z;
-				cache[ 3 ] = v.w;
-
-			}
-
-		} else {
-
-			if ( arraysEqual( cache, v ) ) return;
-
-			gl.uniform4fv( this.addr, v );
-
-			copyArray( cache, v );
-
-		}
-
-	}
-
-	// Single matrix (from flat array or MatrixN)
-
-	function setValueM2( gl, v ) {
-
-		var cache = this.cache;
-		var elements = v.elements;
-
-		if ( elements === undefined ) {
-
-			if ( arraysEqual( cache, v ) ) return;
-
-			gl.uniformMatrix2fv( this.addr, false, v );
-
-			copyArray( cache, v );
-
-		} else {
-
-			if ( arraysEqual( cache, elements ) ) return;
-
-			mat2array.set( elements );
-
-			gl.uniformMatrix2fv( this.addr, false, mat2array );
-
-			copyArray( cache, elements );
-
-		}
-
-	}
-
-	function setValueM3( gl, v ) {
-
-		var cache = this.cache;
-		var elements = v.elements;
-
-		if ( elements === undefined ) {
-
-			if ( arraysEqual( cache, v ) ) return;
-
-			gl.uniformMatrix3fv( this.addr, false, v );
-
-			copyArray( cache, v );
-
-		} else {
-
-			if ( arraysEqual( cache, elements ) ) return;
-
-			mat3array.set( elements );
-
-			gl.uniformMatrix3fv( this.addr, false, mat3array );
-
-			copyArray( cache, elements );
-
-		}
-
-	}
-
-	function setValueM4( gl, v ) {
-
-		var cache = this.cache;
-		var elements = v.elements;
-
-		if ( elements === undefined ) {
-
-			if ( arraysEqual( cache, v ) ) return;
-
-			gl.uniformMatrix4fv( this.addr, false, v );
-
-			copyArray( cache, v );
-
-		} else {
-
-			if ( arraysEqual( cache, elements ) ) return;
-
-			mat4array.set( elements );
-
-			gl.uniformMatrix4fv( this.addr, false, mat4array );
-
-			copyArray( cache, elements );
-
-		}
-
-	}
-
-	// Single texture (2D / Cube)
-
-	function setValueT1( gl, v, textures ) {
-
-		var cache = this.cache;
-		var unit = textures.allocateTextureUnit();
-
-		if ( cache[ 0 ] !== unit ) {
-
-			gl.uniform1i( this.addr, unit );
-			cache[ 0 ] = unit;
-
-		}
-
-		textures.safeSetTexture2D( v || emptyTexture, unit );
-
-	}
-
-	function setValueT2DArray1( gl, v, textures ) {
-
-		var cache = this.cache;
-		var unit = textures.allocateTextureUnit();
-
-		if ( cache[ 0 ] !== unit ) {
-
-			gl.uniform1i( this.addr, unit );
-			cache[ 0 ] = unit;
-
-		}
-
-		textures.setTexture2DArray( v || emptyTexture2dArray, unit );
-
-	}
-
-	function setValueT3D1( gl, v, textures ) {
-
-		var cache = this.cache;
-		var unit = textures.allocateTextureUnit();
-
-		if ( cache[ 0 ] !== unit ) {
-
-			gl.uniform1i( this.addr, unit );
-			cache[ 0 ] = unit;
-
-		}
-
-		textures.setTexture3D( v || emptyTexture3d, unit );
-
-	}
-
-	function setValueT6( gl, v, textures ) {
-
-		var cache = this.cache;
-		var unit = textures.allocateTextureUnit();
-
-		if ( cache[ 0 ] !== unit ) {
-
-			gl.uniform1i( this.addr, unit );
-			cache[ 0 ] = unit;
-
-		}
-
-		textures.safeSetTextureCube( v || emptyCubeTexture, unit );
-
-	}
-
-	// Integer / Boolean vectors or arrays thereof (always flat arrays)
-
-	function setValueV1i( gl, v ) {
-
-		var cache = this.cache;
-
-		if ( cache[ 0 ] === v ) return;
-
-		gl.uniform1i( this.addr, v );
-
-		cache[ 0 ] = v;
-
-	}
-
-	function setValueV2i( gl, v ) {
-
-		var cache = this.cache;
-
-		if ( arraysEqual( cache, v ) ) return;
-
-		gl.uniform2iv( this.addr, v );
-
-		copyArray( cache, v );
-
-	}
-
-	function setValueV3i( gl, v ) {
-
-		var cache = this.cache;
-
-		if ( arraysEqual( cache, v ) ) return;
-
-		gl.uniform3iv( this.addr, v );
-
-		copyArray( cache, v );
-
-	}
-
-	function setValueV4i( gl, v ) {
-
-		var cache = this.cache;
-
-		if ( arraysEqual( cache, v ) ) return;
-
-		gl.uniform4iv( this.addr, v );
-
-		copyArray( cache, v );
-
-	}
-
-	// Helper to pick the right setter for the singular case
-
-	function getSingularSetter( type ) {
-
-		switch ( type ) {
-
-			case 0x1406: return setValueV1f; // FLOAT
-			case 0x8b50: return setValueV2f; // _VEC2
-			case 0x8b51: return setValueV3f; // _VEC3
-			case 0x8b52: return setValueV4f; // _VEC4
-
-			case 0x8b5a: return setValueM2; // _MAT2
-			case 0x8b5b: return setValueM3; // _MAT3
-			case 0x8b5c: return setValueM4; // _MAT4
-
-			case 0x8b5e: case 0x8d66: return setValueT1; // SAMPLER_2D, SAMPLER_EXTERNAL_OES
-			case 0x8b5f: return setValueT3D1; // SAMPLER_3D
-			case 0x8b60: return setValueT6; // SAMPLER_CUBE
-			case 0x8DC1: return setValueT2DArray1; // SAMPLER_2D_ARRAY
-
-			case 0x1404: case 0x8b56: return setValueV1i; // INT, BOOL
-			case 0x8b53: case 0x8b57: return setValueV2i; // _VEC2
-			case 0x8b54: case 0x8b58: return setValueV3i; // _VEC3
-			case 0x8b55: case 0x8b59: return setValueV4i; // _VEC4
-
-		}
-
-	}
-
-	// Array of scalars
-	function setValueV1fArray( gl, v ) {
-
-		gl.uniform1fv( this.addr, v );
-
-	}
-
-	// Integer / Boolean vectors or arrays thereof (always flat arrays)
-	function setValueV1iArray( gl, v ) {
-
-		gl.uniform1iv( this.addr, v );
-
-	}
-
-	function setValueV2iArray( gl, v ) {
-
-		gl.uniform2iv( this.addr, v );
-
-	}
-
-	function setValueV3iArray( gl, v ) {
-
-		gl.uniform3iv( this.addr, v );
-
-	}
-
-	function setValueV4iArray( gl, v ) {
-
-		gl.uniform4iv( this.addr, v );
-
-	}
-
-
-	// Array of vectors (flat or from THREE classes)
-
-	function setValueV2fArray( gl, v ) {
-
-		var data = flatten( v, this.size, 2 );
-
-		gl.uniform2fv( this.addr, data );
-
-	}
-
-	function setValueV3fArray( gl, v ) {
-
-		var data = flatten( v, this.size, 3 );
-
-		gl.uniform3fv( this.addr, data );
-
-	}
-
-	function setValueV4fArray( gl, v ) {
-
-		var data = flatten( v, this.size, 4 );
-
-		gl.uniform4fv( this.addr, data );
-
-	}
-
-	// Array of matrices (flat or from THREE clases)
-
-	function setValueM2Array( gl, v ) {
-
-		var data = flatten( v, this.size, 4 );
-
-		gl.uniformMatrix2fv( this.addr, false, data );
-
-	}
-
-	function setValueM3Array( gl, v ) {
-
-		var data = flatten( v, this.size, 9 );
-
-		gl.uniformMatrix3fv( this.addr, false, data );
-
-	}
-
-	function setValueM4Array( gl, v ) {
-
-		var data = flatten( v, this.size, 16 );
-
-		gl.uniformMatrix4fv( this.addr, false, data );
-
-	}
-
-	// Array of textures (2D / Cube)
-
-	function setValueT1Array( gl, v, textures ) {
-
-		var n = v.length;
-
-		var units = allocTexUnits( textures, n );
-
-		gl.uniform1iv( this.addr, units );
-
-		for ( var i = 0; i !== n; ++ i ) {
-
-			textures.safeSetTexture2D( v[ i ] || emptyTexture, units[ i ] );
-
-		}
-
-	}
-
-	function setValueT6Array( gl, v, textures ) {
-
-		var n = v.length;
-
-		var units = allocTexUnits( textures, n );
-
-		gl.uniform1iv( this.addr, units );
-
-		for ( var i = 0; i !== n; ++ i ) {
-
-			textures.safeSetTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );
-
-		}
-
-	}
-
-	// Helper to pick the right setter for a pure (bottom-level) array
-
-	function getPureArraySetter( type ) {
-
-		switch ( type ) {
-
-			case 0x1406: return setValueV1fArray; // FLOAT
-			case 0x8b50: return setValueV2fArray; // _VEC2
-			case 0x8b51: return setValueV3fArray; // _VEC3
-			case 0x8b52: return setValueV4fArray; // _VEC4
-
-			case 0x8b5a: return setValueM2Array; // _MAT2
-			case 0x8b5b: return setValueM3Array; // _MAT3
-			case 0x8b5c: return setValueM4Array; // _MAT4
-
-			case 0x8b5e: return setValueT1Array; // SAMPLER_2D
-			case 0x8b60: return setValueT6Array; // SAMPLER_CUBE
-
-			case 0x1404: case 0x8b56: return setValueV1iArray; // INT, BOOL
-			case 0x8b53: case 0x8b57: return setValueV2iArray; // _VEC2
-			case 0x8b54: case 0x8b58: return setValueV3iArray; // _VEC3
-			case 0x8b55: case 0x8b59: return setValueV4iArray; // _VEC4
-
-		}
-
-	}
-
-	// --- Uniform Classes ---
-
-	function SingleUniform( id, activeInfo, addr ) {
-
-		this.id = id;
-		this.addr = addr;
-		this.cache = [];
-		this.setValue = getSingularSetter( activeInfo.type );
-
-		// this.path = activeInfo.name; // DEBUG
-
-	}
-
-	function PureArrayUniform( id, activeInfo, addr ) {
-
-		this.id = id;
-		this.addr = addr;
-		this.cache = [];
-		this.size = activeInfo.size;
-		this.setValue = getPureArraySetter( activeInfo.type );
-
-		// this.path = activeInfo.name; // DEBUG
-
-	}
-
-	PureArrayUniform.prototype.updateCache = function ( data ) {
-
-		var cache = this.cache;
-
-		if ( data instanceof Float32Array && cache.length !== data.length ) {
-
-			this.cache = new Float32Array( data.length );
-
-		}
-
-		copyArray( cache, data );
-
-	};
-
-	function StructuredUniform( id ) {
-
-		this.id = id;
-
-		this.seq = [];
-		this.map = {};
-
-	}
-
-	StructuredUniform.prototype.setValue = function ( gl, value, textures ) {
-
-		var seq = this.seq;
-
-		for ( var i = 0, n = seq.length; i !== n; ++ i ) {
-
-			var u = seq[ i ];
-			u.setValue( gl, value[ u.id ], textures );
-
-		}
-
-	};
-
-	// --- Top-level ---
-
-	// Parser - builds up the property tree from the path strings
-
-	var RePathPart = /([\w\d_]+)(\])?(\[|\.)?/g;
-
-	// extracts
-	// 	- the identifier (member name or array index)
-	//  - followed by an optional right bracket (found when array index)
-	//  - followed by an optional left bracket or dot (type of subscript)
-	//
-	// Note: These portions can be read in a non-overlapping fashion and
-	// allow straightforward parsing of the hierarchy that WebGL encodes
-	// in the uniform names.
-
-	function addUniform( container, uniformObject ) {
-
-		container.seq.push( uniformObject );
-		container.map[ uniformObject.id ] = uniformObject;
-
-	}
-
-	function parseUniform( activeInfo, addr, container ) {
-
-		var path = activeInfo.name,
-			pathLength = path.length;
-
-		// reset RegExp object, because of the early exit of a previous run
-		RePathPart.lastIndex = 0;
-
-		while ( true ) {
-
-			var match = RePathPart.exec( path ),
-				matchEnd = RePathPart.lastIndex,
-
-				id = match[ 1 ],
-				idIsIndex = match[ 2 ] === ']',
-				subscript = match[ 3 ];
-
-			if ( idIsIndex ) id = id | 0; // convert to integer
-
-			if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {
-
-				// bare name or "pure" bottom-level array "[0]" suffix
-
-				addUniform( container, subscript === undefined ?
-					new SingleUniform( id, activeInfo, addr ) :
-					new PureArrayUniform( id, activeInfo, addr ) );
-
-				break;
-
-			} else {
-
-				// step into inner node / create it in case it doesn't exist
-
-				var map = container.map, next = map[ id ];
-
-				if ( next === undefined ) {
-
-					next = new StructuredUniform( id );
-					addUniform( container, next );
-
-				}
-
-				container = next;
-
-			}
-
-		}
-
-	}
-
-	// Root Container
-
-	function WebGLUniforms( gl, program ) {
-
-		this.seq = [];
-		this.map = {};
-
-		var n = gl.getProgramParameter( program, 35718 );
-
-		for ( var i = 0; i < n; ++ i ) {
-
-			var info = gl.getActiveUniform( program, i ),
-				addr = gl.getUniformLocation( program, info.name );
-
-			parseUniform( info, addr, this );
-
-		}
-
-	}
-
-	WebGLUniforms.prototype.setValue = function ( gl, name, value, textures ) {
-
-		var u = this.map[ name ];
-
-		if ( u !== undefined ) u.setValue( gl, value, textures );
-
-	};
-
-	WebGLUniforms.prototype.setOptional = function ( gl, object, name ) {
-
-		var v = object[ name ];
-
-		if ( v !== undefined ) this.setValue( gl, name, v );
-
-	};
-
-
-	// Static interface
-
-	WebGLUniforms.upload = function ( gl, seq, values, textures ) {
-
-		for ( var i = 0, n = seq.length; i !== n; ++ i ) {
-
-			var u = seq[ i ],
-				v = values[ u.id ];
-
-			if ( v.needsUpdate !== false ) {
-
-				// note: always updating when .needsUpdate is undefined
-				u.setValue( gl, v.value, textures );
-
-			}
-
-		}
-
-	};
-
-	WebGLUniforms.seqWithValue = function ( seq, values ) {
-
-		var r = [];
-
-		for ( var i = 0, n = seq.length; i !== n; ++ i ) {
-
-			var u = seq[ i ];
-			if ( u.id in values ) r.push( u );
-
-		}
-
-		return r;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function addLineNumbers( string ) {
-
-		var lines = string.split( '\n' );
-
-		for ( var i = 0; i < lines.length; i ++ ) {
-
-			lines[ i ] = ( i + 1 ) + ': ' + lines[ i ];
-
-		}
-
-		return lines.join( '\n' );
-
-	}
-
-	function WebGLShader( gl, type, string, debug ) {
-
-		var shader = gl.createShader( type );
-
-		gl.shaderSource( shader, string );
-		gl.compileShader( shader );
-
-		if ( debug === true ) {
-
-			if ( gl.getShaderParameter( shader, 35713 ) === false ) {
-
-				console.error( 'THREE.WebGLShader: Shader couldn\'t compile.' );
-
-			}
-
-			if ( gl.getShaderInfoLog( shader ) !== '' ) {
-
-				console.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === 35633 ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );
-
-			}
-
-		}
-
-		// --enable-privileged-webgl-extension
-		// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );
-
-		return shader;
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var programIdCount = 0;
-
-	function getEncodingComponents( encoding ) {
-
-		switch ( encoding ) {
-
-			case LinearEncoding:
-				return [ 'Linear', '( value )' ];
-			case sRGBEncoding:
-				return [ 'sRGB', '( value )' ];
-			case RGBEEncoding:
-				return [ 'RGBE', '( value )' ];
-			case RGBM7Encoding:
-				return [ 'RGBM', '( value, 7.0 )' ];
-			case RGBM16Encoding:
-				return [ 'RGBM', '( value, 16.0 )' ];
-			case RGBDEncoding:
-				return [ 'RGBD', '( value, 256.0 )' ];
-			case GammaEncoding:
-				return [ 'Gamma', '( value, float( GAMMA_FACTOR ) )' ];
-			default:
-				throw new Error( 'unsupported encoding: ' + encoding );
-
-		}
-
-	}
-
-	function getTexelDecodingFunction( functionName, encoding ) {
-
-		var components = getEncodingComponents( encoding );
-		return 'vec4 ' + functionName + '( vec4 value ) { return ' + components[ 0 ] + 'ToLinear' + components[ 1 ] + '; }';
-
-	}
-
-	function getTexelEncodingFunction( functionName, encoding ) {
-
-		var components = getEncodingComponents( encoding );
-		return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }';
-
-	}
-
-	function getToneMappingFunction( functionName, toneMapping ) {
-
-		var toneMappingName;
-
-		switch ( toneMapping ) {
-
-			case LinearToneMapping:
-				toneMappingName = 'Linear';
-				break;
-
-			case ReinhardToneMapping:
-				toneMappingName = 'Reinhard';
-				break;
-
-			case Uncharted2ToneMapping:
-				toneMappingName = 'Uncharted2';
-				break;
-
-			case CineonToneMapping:
-				toneMappingName = 'OptimizedCineon';
-				break;
-
-			case ACESFilmicToneMapping:
-				toneMappingName = 'ACESFilmic';
-				break;
-
-			default:
-				throw new Error( 'unsupported toneMapping: ' + toneMapping );
-
-		}
-
-		return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';
-
-	}
-
-	function generateExtensions( extensions, parameters, rendererExtensions ) {
-
-		extensions = extensions || {};
-
-		var chunks = [
-			( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || ( parameters.normalMap && ! parameters.objectSpaceNormalMap ) || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',
-			( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',
-			( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',
-			( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : ''
-		];
-
-		return chunks.filter( filterEmptyLine ).join( '\n' );
-
-	}
-
-	function generateDefines( defines ) {
-
-		var chunks = [];
-
-		for ( var name in defines ) {
-
-			var value = defines[ name ];
-
-			if ( value === false ) continue;
-
-			chunks.push( '#define ' + name + ' ' + value );
-
-		}
-
-		return chunks.join( '\n' );
-
-	}
-
-	function fetchAttributeLocations( gl, program ) {
-
-		var attributes = {};
-
-		var n = gl.getProgramParameter( program, 35721 );
-
-		for ( var i = 0; i < n; i ++ ) {
-
-			var info = gl.getActiveAttrib( program, i );
-			var name = info.name;
-
-			// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );
-
-			attributes[ name ] = gl.getAttribLocation( program, name );
-
-		}
-
-		return attributes;
-
-	}
-
-	function filterEmptyLine( string ) {
-
-		return string !== '';
-
-	}
-
-	function replaceLightNums( string, parameters ) {
-
-		return string
-			.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )
-			.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )
-			.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )
-			.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )
-			.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights );
-
-	}
-
-	function replaceClippingPlaneNums( string, parameters ) {
-
-		return string
-			.replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes )
-			.replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) );
-
-	}
-
-	function parseIncludes( string ) {
-
-		var pattern = /^[ \t]*#include +<([\w\d./]+)>/gm;
-
-		function replace( match, include ) {
-
-			var replace = ShaderChunk[ include ];
-
-			if ( replace === undefined ) {
-
-				throw new Error( 'Can not resolve #include <' + include + '>' );
-
-			}
-
-			return parseIncludes( replace );
-
-		}
-
-		return string.replace( pattern, replace );
-
-	}
-
-	function unrollLoops( string ) {
-
-		var pattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;
-
-		function replace( match, start, end, snippet ) {
-
-			var unroll = '';
-
-			for ( var i = parseInt( start ); i < parseInt( end ); i ++ ) {
-
-				unroll += snippet.replace( /\[ i \]/g, '[ ' + i + ' ]' );
-
-			}
-
-			return unroll;
-
-		}
-
-		return string.replace( pattern, replace );
-
-	}
-
-	function WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities, textures ) {
-
-		var gl = renderer.context;
-
-		var defines = material.defines;
-
-		var vertexShader = shader.vertexShader;
-		var fragmentShader = shader.fragmentShader;
-
-		var shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';
-
-		if ( parameters.shadowMapType === PCFShadowMap ) {
-
-			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';
-
-		} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {
-
-			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';
-
-		}
-
-		var envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
-		var envMapModeDefine = 'ENVMAP_MODE_REFLECTION';
-		var envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
-
-		if ( parameters.envMap ) {
-
-			switch ( material.envMap.mapping ) {
-
-				case CubeReflectionMapping:
-				case CubeRefractionMapping:
-					envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
-					break;
-
-				case CubeUVReflectionMapping:
-				case CubeUVRefractionMapping:
-					envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
-					break;
-
-				case EquirectangularReflectionMapping:
-				case EquirectangularRefractionMapping:
-					envMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';
-					break;
-
-				case SphericalReflectionMapping:
-					envMapTypeDefine = 'ENVMAP_TYPE_SPHERE';
-					break;
-
-			}
-
-			switch ( material.envMap.mapping ) {
-
-				case CubeRefractionMapping:
-				case EquirectangularRefractionMapping:
-					envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
-					break;
-
-			}
-
-			switch ( material.combine ) {
-
-				case MultiplyOperation:
-					envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
-					break;
-
-				case MixOperation:
-					envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
-					break;
-
-				case AddOperation:
-					envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
-					break;
-
-			}
-
-		}
-
-		var gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;
-
-		// console.log( 'building new program ' );
-
-		//
-
-		var customExtensions = capabilities.isWebGL2 ? '' : generateExtensions( material.extensions, parameters, extensions );
-
-		var customDefines = generateDefines( defines );
-
-		//
-
-		var program = gl.createProgram();
-
-		var prefixVertex, prefixFragment;
-
-		if ( material.isRawShaderMaterial ) {
-
-			prefixVertex = [
-
-				customDefines
-
-			].filter( filterEmptyLine ).join( '\n' );
-
-			if ( prefixVertex.length > 0 ) {
-
-				prefixVertex += '\n';
-
-			}
-
-			prefixFragment = [
-
-				customExtensions,
-				customDefines
-
-			].filter( filterEmptyLine ).join( '\n' );
-
-			if ( prefixFragment.length > 0 ) {
-
-				prefixFragment += '\n';
-
-			}
-
-		} else {
-
-			prefixVertex = [
-
-				'precision ' + parameters.precision + ' float;',
-				'precision ' + parameters.precision + ' int;',
-
-				'#define SHADER_NAME ' + shader.name,
-
-				customDefines,
-
-				parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',
-
-				'#define GAMMA_FACTOR ' + gammaFactorDefine,
-
-				'#define MAX_BONES ' + parameters.maxBones,
-				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
-				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',
-
-				parameters.map ? '#define USE_MAP' : '',
-				parameters.envMap ? '#define USE_ENVMAP' : '',
-				parameters.envMap ? '#define ' + envMapModeDefine : '',
-				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
-				parameters.aoMap ? '#define USE_AOMAP' : '',
-				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
-				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
-				parameters.normalMap ? '#define USE_NORMALMAP' : '',
-				( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
-				parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',
-				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
-				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
-				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
-				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
-
-				parameters.vertexTangents ? '#define USE_TANGENT' : '',
-				parameters.vertexColors ? '#define USE_COLOR' : '',
-
-				parameters.flatShading ? '#define FLAT_SHADED' : '',
-
-				parameters.skinning ? '#define USE_SKINNING' : '',
-				parameters.useVertexTexture ? '#define BONE_TEXTURE' : '',
-
-				parameters.morphTargets ? '#define USE_MORPHTARGETS' : '',
-				parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',
-				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
-				parameters.flipSided ? '#define FLIP_SIDED' : '',
-
-				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
-				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
-
-				parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',
-
-				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
-				parameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',
-
-				'uniform mat4 modelMatrix;',
-				'uniform mat4 modelViewMatrix;',
-				'uniform mat4 projectionMatrix;',
-				'uniform mat4 viewMatrix;',
-				'uniform mat3 normalMatrix;',
-				'uniform vec3 cameraPosition;',
-
-				'attribute vec3 position;',
-				'attribute vec3 normal;',
-				'attribute vec2 uv;',
-
-				'#ifdef USE_TANGENT',
-
-				'	attribute vec4 tangent;',
-
-				'#endif',
-
-				'#ifdef USE_COLOR',
-
-				'	attribute vec3 color;',
-
-				'#endif',
-
-				'#ifdef USE_MORPHTARGETS',
-
-				'	attribute vec3 morphTarget0;',
-				'	attribute vec3 morphTarget1;',
-				'	attribute vec3 morphTarget2;',
-				'	attribute vec3 morphTarget3;',
-
-				'	#ifdef USE_MORPHNORMALS',
-
-				'		attribute vec3 morphNormal0;',
-				'		attribute vec3 morphNormal1;',
-				'		attribute vec3 morphNormal2;',
-				'		attribute vec3 morphNormal3;',
-
-				'	#else',
-
-				'		attribute vec3 morphTarget4;',
-				'		attribute vec3 morphTarget5;',
-				'		attribute vec3 morphTarget6;',
-				'		attribute vec3 morphTarget7;',
-
-				'	#endif',
-
-				'#endif',
-
-				'#ifdef USE_SKINNING',
-
-				'	attribute vec4 skinIndex;',
-				'	attribute vec4 skinWeight;',
-
-				'#endif',
-
-				'\n'
-
-			].filter( filterEmptyLine ).join( '\n' );
-
-			prefixFragment = [
-
-				customExtensions,
-
-				'precision ' + parameters.precision + ' float;',
-				'precision ' + parameters.precision + ' int;',
-
-				'#define SHADER_NAME ' + shader.name,
-
-				customDefines,
-
-				parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest + ( parameters.alphaTest % 1 ? '' : '.0' ) : '', // add '.0' if integer
-
-				'#define GAMMA_FACTOR ' + gammaFactorDefine,
-
-				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
-				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',
-
-				parameters.map ? '#define USE_MAP' : '',
-				parameters.matcap ? '#define USE_MATCAP' : '',
-				parameters.envMap ? '#define USE_ENVMAP' : '',
-				parameters.envMap ? '#define ' + envMapTypeDefine : '',
-				parameters.envMap ? '#define ' + envMapModeDefine : '',
-				parameters.envMap ? '#define ' + envMapBlendingDefine : '',
-				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
-				parameters.aoMap ? '#define USE_AOMAP' : '',
-				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
-				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
-				parameters.normalMap ? '#define USE_NORMALMAP' : '',
-				( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '',
-				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
-				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
-				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
-				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
-
-				parameters.vertexTangents ? '#define USE_TANGENT' : '',
-				parameters.vertexColors ? '#define USE_COLOR' : '',
-
-				parameters.gradientMap ? '#define USE_GRADIENTMAP' : '',
-
-				parameters.flatShading ? '#define FLAT_SHADED' : '',
-
-				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
-				parameters.flipSided ? '#define FLIP_SIDED' : '',
-
-				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
-				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
-
-				parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '',
-
-				parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '',
-
-				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
-				parameters.logarithmicDepthBuffer && ( capabilities.isWebGL2 || extensions.get( 'EXT_frag_depth' ) ) ? '#define USE_LOGDEPTHBUF_EXT' : '',
-
-				parameters.envMap && ( capabilities.isWebGL2 || extensions.get( 'EXT_shader_texture_lod' ) ) ? '#define TEXTURE_LOD_EXT' : '',
-
-				'uniform mat4 viewMatrix;',
-				'uniform vec3 cameraPosition;',
-
-				( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '',
-				( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below
-				( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '',
-
-				parameters.dithering ? '#define DITHERING' : '',
-
-				( parameters.outputEncoding || parameters.mapEncoding || parameters.matcapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ?
-					ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below
-				parameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '',
-				parameters.matcapEncoding ? getTexelDecodingFunction( 'matcapTexelToLinear', parameters.matcapEncoding ) : '',
-				parameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '',
-				parameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '',
-				parameters.outputEncoding ? getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ) : '',
-
-				parameters.depthPacking ? '#define DEPTH_PACKING ' + material.depthPacking : '',
-
-				'\n'
-
-			].filter( filterEmptyLine ).join( '\n' );
-
-		}
-
-		vertexShader = parseIncludes( vertexShader );
-		vertexShader = replaceLightNums( vertexShader, parameters );
-		vertexShader = replaceClippingPlaneNums( vertexShader, parameters );
-
-		fragmentShader = parseIncludes( fragmentShader );
-		fragmentShader = replaceLightNums( fragmentShader, parameters );
-		fragmentShader = replaceClippingPlaneNums( fragmentShader, parameters );
-
-		vertexShader = unrollLoops( vertexShader );
-		fragmentShader = unrollLoops( fragmentShader );
-
-		if ( capabilities.isWebGL2 && ! material.isRawShaderMaterial ) {
-
-			var isGLSL3ShaderMaterial = false;
-
-			var versionRegex = /^\s*#version\s+300\s+es\s*\n/;
-
-			if ( material.isShaderMaterial &&
-				vertexShader.match( versionRegex ) !== null &&
-				fragmentShader.match( versionRegex ) !== null ) {
-
-				isGLSL3ShaderMaterial = true;
-
-				vertexShader = vertexShader.replace( versionRegex, '' );
-				fragmentShader = fragmentShader.replace( versionRegex, '' );
-
-			}
-
-			// GLSL 3.0 conversion
-			prefixVertex = [
-				'#version 300 es\n',
-				'#define attribute in',
-				'#define varying out',
-				'#define texture2D texture'
-			].join( '\n' ) + '\n' + prefixVertex;
-
-			prefixFragment = [
-				'#version 300 es\n',
-				'#define varying in',
-				isGLSL3ShaderMaterial ? '' : 'out highp vec4 pc_fragColor;',
-				isGLSL3ShaderMaterial ? '' : '#define gl_FragColor pc_fragColor',
-				'#define gl_FragDepthEXT gl_FragDepth',
-				'#define texture2D texture',
-				'#define textureCube texture',
-				'#define texture2DProj textureProj',
-				'#define texture2DLodEXT textureLod',
-				'#define texture2DProjLodEXT textureProjLod',
-				'#define textureCubeLodEXT textureLod',
-				'#define texture2DGradEXT textureGrad',
-				'#define texture2DProjGradEXT textureProjGrad',
-				'#define textureCubeGradEXT textureGrad'
-			].join( '\n' ) + '\n' + prefixFragment;
-
-		}
-
-		var vertexGlsl = prefixVertex + vertexShader;
-		var fragmentGlsl = prefixFragment + fragmentShader;
-
-		// console.log( '*VERTEX*', vertexGlsl );
-		// console.log( '*FRAGMENT*', fragmentGlsl );
-
-		var glVertexShader = WebGLShader( gl, 35633, vertexGlsl, renderer.debug.checkShaderErrors );
-		var glFragmentShader = WebGLShader( gl, 35632, fragmentGlsl, renderer.debug.checkShaderErrors );
-
-		gl.attachShader( program, glVertexShader );
-		gl.attachShader( program, glFragmentShader );
-
-		// Force a particular attribute to index 0.
-
-		if ( material.index0AttributeName !== undefined ) {
-
-			gl.bindAttribLocation( program, 0, material.index0AttributeName );
-
-		} else if ( parameters.morphTargets === true ) {
-
-			// programs with morphTargets displace position out of attribute 0
-			gl.bindAttribLocation( program, 0, 'position' );
-
-		}
-
-		gl.linkProgram( program );
-
-		// check for link errors
-		if ( renderer.debug.checkShaderErrors ) {
-
-			var programLog = gl.getProgramInfoLog( program ).trim();
-			var vertexLog = gl.getShaderInfoLog( glVertexShader ).trim();
-			var fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim();
-
-			var runnable = true;
-			var haveDiagnostics = true;
-
-			// console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) );
-			// console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) );
-
-			if ( gl.getProgramParameter( program, 35714 ) === false ) {
-
-				runnable = false;
-
-				console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), '35715', gl.getProgramParameter( program, 35715 ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );
-
-			} else if ( programLog !== '' ) {
-
-				console.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );
-
-			} else if ( vertexLog === '' || fragmentLog === '' ) {
-
-				haveDiagnostics = false;
-
-			}
-
-			if ( haveDiagnostics ) {
-
-				this.diagnostics = {
-
-					runnable: runnable,
-					material: material,
-
-					programLog: programLog,
-
-					vertexShader: {
-
-						log: vertexLog,
-						prefix: prefixVertex
-
-					},
-
-					fragmentShader: {
-
-						log: fragmentLog,
-						prefix: prefixFragment
-
-					}
-
-				};
-
-			}
-
-		}
-
-		// clean up
-
-		gl.deleteShader( glVertexShader );
-		gl.deleteShader( glFragmentShader );
-
-		// set up caching for uniform locations
-
-		var cachedUniforms;
-
-		this.getUniforms = function () {
-
-			if ( cachedUniforms === undefined ) {
-
-				cachedUniforms = new WebGLUniforms( gl, program, textures );
-
-			}
-
-			return cachedUniforms;
-
-		};
-
-		// set up caching for attribute locations
-
-		var cachedAttributes;
-
-		this.getAttributes = function () {
-
-			if ( cachedAttributes === undefined ) {
-
-				cachedAttributes = fetchAttributeLocations( gl, program );
-
-			}
-
-			return cachedAttributes;
-
-		};
-
-		// free resource
-
-		this.destroy = function () {
-
-			gl.deleteProgram( program );
-			this.program = undefined;
-
-		};
-
-		// DEPRECATED
-
-		Object.defineProperties( this, {
-
-			uniforms: {
-				get: function () {
-
-					console.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );
-					return this.getUniforms();
-
-				}
-			},
-
-			attributes: {
-				get: function () {
-
-					console.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );
-					return this.getAttributes();
-
-				}
-			}
-
-		} );
-
-
-		//
-
-		this.name = shader.name;
-		this.id = programIdCount ++;
-		this.code = code;
-		this.usedTimes = 1;
-		this.program = program;
-		this.vertexShader = glVertexShader;
-		this.fragmentShader = glFragmentShader;
-
-		return this;
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLPrograms( renderer, extensions, capabilities, textures ) {
-
-		var programs = [];
-
-		var shaderIDs = {
-			MeshDepthMaterial: 'depth',
-			MeshDistanceMaterial: 'distanceRGBA',
-			MeshNormalMaterial: 'normal',
-			MeshBasicMaterial: 'basic',
-			MeshLambertMaterial: 'lambert',
-			MeshPhongMaterial: 'phong',
-			MeshToonMaterial: 'phong',
-			MeshStandardMaterial: 'physical',
-			MeshPhysicalMaterial: 'physical',
-			MeshMatcapMaterial: 'matcap',
-			LineBasicMaterial: 'basic',
-			LineDashedMaterial: 'dashed',
-			PointsMaterial: 'points',
-			ShadowMaterial: 'shadow',
-			SpriteMaterial: 'sprite'
-		};
-
-		var parameterNames = [
-			"precision", "supportsVertexTextures", "map", "mapEncoding", "matcap", "matcapEncoding", "envMap", "envMapMode", "envMapEncoding",
-			"lightMap", "aoMap", "emissiveMap", "emissiveMapEncoding", "bumpMap", "normalMap", "objectSpaceNormalMap", "displacementMap", "specularMap",
-			"roughnessMap", "metalnessMap", "gradientMap",
-			"alphaMap", "combine", "vertexColors", "vertexTangents", "fog", "useFog", "fogExp",
-			"flatShading", "sizeAttenuation", "logarithmicDepthBuffer", "skinning",
-			"maxBones", "useVertexTexture", "morphTargets", "morphNormals",
-			"maxMorphTargets", "maxMorphNormals", "premultipliedAlpha",
-			"numDirLights", "numPointLights", "numSpotLights", "numHemiLights", "numRectAreaLights",
-			"shadowMapEnabled", "shadowMapType", "toneMapping", 'physicallyCorrectLights',
-			"alphaTest", "doubleSided", "flipSided", "numClippingPlanes", "numClipIntersection", "depthPacking", "dithering"
-		];
-
-
-		function allocateBones( object ) {
-
-			var skeleton = object.skeleton;
-			var bones = skeleton.bones;
-
-			if ( capabilities.floatVertexTextures ) {
-
-				return 1024;
-
-			} else {
-
-				// default for when object is not specified
-				// ( for example when prebuilding shader to be used with multiple objects )
-				//
-				//  - leave some extra space for other uniforms
-				//  - limit here is ANGLE's 254 max uniform vectors
-				//    (up to 54 should be safe)
-
-				var nVertexUniforms = capabilities.maxVertexUniforms;
-				var nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );
-
-				var maxBones = Math.min( nVertexMatrices, bones.length );
-
-				if ( maxBones < bones.length ) {
-
-					console.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' );
-					return 0;
-
-				}
-
-				return maxBones;
-
-			}
-
-		}
-
-		function getTextureEncodingFromMap( map, gammaOverrideLinear ) {
-
-			var encoding;
-
-			if ( ! map ) {
-
-				encoding = LinearEncoding;
-
-			} else if ( map.isTexture ) {
-
-				encoding = map.encoding;
-
-			} else if ( map.isWebGLRenderTarget ) {
-
-				console.warn( "THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead." );
-				encoding = map.texture.encoding;
-
-			}
-
-			// add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point.
-			if ( encoding === LinearEncoding && gammaOverrideLinear ) {
-
-				encoding = GammaEncoding;
-
-			}
-
-			return encoding;
-
-		}
-
-		this.getParameters = function ( material, lights, shadows, fog, nClipPlanes, nClipIntersection, object ) {
-
-			var shaderID = shaderIDs[ material.type ];
-
-			// heuristics to create shader parameters according to lights in the scene
-			// (not to blow over maxLights budget)
-
-			var maxBones = object.isSkinnedMesh ? allocateBones( object ) : 0;
-			var precision = capabilities.precision;
-
-			if ( material.precision !== null ) {
-
-				precision = capabilities.getMaxPrecision( material.precision );
-
-				if ( precision !== material.precision ) {
-
-					console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );
-
-				}
-
-			}
-
-			var currentRenderTarget = renderer.getRenderTarget();
-
-			var parameters = {
-
-				shaderID: shaderID,
-
-				precision: precision,
-				supportsVertexTextures: capabilities.vertexTextures,
-				outputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ),
-				map: !! material.map,
-				mapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ),
-				matcap: !! material.matcap,
-				matcapEncoding: getTextureEncodingFromMap( material.matcap, renderer.gammaInput ),
-				envMap: !! material.envMap,
-				envMapMode: material.envMap && material.envMap.mapping,
-				envMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ),
-				envMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ),
-				lightMap: !! material.lightMap,
-				aoMap: !! material.aoMap,
-				emissiveMap: !! material.emissiveMap,
-				emissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ),
-				bumpMap: !! material.bumpMap,
-				normalMap: !! material.normalMap,
-				objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap,
-				displacementMap: !! material.displacementMap,
-				roughnessMap: !! material.roughnessMap,
-				metalnessMap: !! material.metalnessMap,
-				specularMap: !! material.specularMap,
-				alphaMap: !! material.alphaMap,
-
-				gradientMap: !! material.gradientMap,
-
-				combine: material.combine,
-
-				vertexTangents: ( material.normalMap && material.vertexTangents ),
-				vertexColors: material.vertexColors,
-
-				fog: !! fog,
-				useFog: material.fog,
-				fogExp: ( fog && fog.isFogExp2 ),
-
-				flatShading: material.flatShading,
-
-				sizeAttenuation: material.sizeAttenuation,
-				logarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,
-
-				skinning: material.skinning && maxBones > 0,
-				maxBones: maxBones,
-				useVertexTexture: capabilities.floatVertexTextures,
-
-				morphTargets: material.morphTargets,
-				morphNormals: material.morphNormals,
-				maxMorphTargets: renderer.maxMorphTargets,
-				maxMorphNormals: renderer.maxMorphNormals,
-
-				numDirLights: lights.directional.length,
-				numPointLights: lights.point.length,
-				numSpotLights: lights.spot.length,
-				numRectAreaLights: lights.rectArea.length,
-				numHemiLights: lights.hemi.length,
-
-				numClippingPlanes: nClipPlanes,
-				numClipIntersection: nClipIntersection,
-
-				dithering: material.dithering,
-
-				shadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && shadows.length > 0,
-				shadowMapType: renderer.shadowMap.type,
-
-				toneMapping: renderer.toneMapping,
-				physicallyCorrectLights: renderer.physicallyCorrectLights,
-
-				premultipliedAlpha: material.premultipliedAlpha,
-
-				alphaTest: material.alphaTest,
-				doubleSided: material.side === DoubleSide,
-				flipSided: material.side === BackSide,
-
-				depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false
-
-			};
-
-			return parameters;
-
-		};
-
-		this.getProgramCode = function ( material, parameters ) {
-
-			var array = [];
-
-			if ( parameters.shaderID ) {
-
-				array.push( parameters.shaderID );
-
-			} else {
-
-				array.push( material.fragmentShader );
-				array.push( material.vertexShader );
-
-			}
-
-			if ( material.defines !== undefined ) {
-
-				for ( var name in material.defines ) {
-
-					array.push( name );
-					array.push( material.defines[ name ] );
-
-				}
-
-			}
-
-			for ( var i = 0; i < parameterNames.length; i ++ ) {
-
-				array.push( parameters[ parameterNames[ i ] ] );
-
-			}
-
-			array.push( material.onBeforeCompile.toString() );
-
-			array.push( renderer.gammaOutput );
-
-			array.push( renderer.gammaFactor );
-
-			return array.join();
-
-		};
-
-		this.acquireProgram = function ( material, shader, parameters, code ) {
-
-			var program;
-
-			// Check if code has been already compiled
-			for ( var p = 0, pl = programs.length; p < pl; p ++ ) {
-
-				var programInfo = programs[ p ];
-
-				if ( programInfo.code === code ) {
-
-					program = programInfo;
-					++ program.usedTimes;
-
-					break;
-
-				}
-
-			}
-
-			if ( program === undefined ) {
-
-				program = new WebGLProgram( renderer, extensions, code, material, shader, parameters, capabilities, textures );
-				programs.push( program );
-
-			}
-
-			return program;
-
-		};
-
-		this.releaseProgram = function ( program ) {
-
-			if ( -- program.usedTimes === 0 ) {
-
-				// Remove from unordered set
-				var i = programs.indexOf( program );
-				programs[ i ] = programs[ programs.length - 1 ];
-				programs.pop();
-
-				// Free WebGL resources
-				program.destroy();
-
-			}
-
-		};
-
-		// Exposed for resource monitoring & error feedback via renderer.info:
-		this.programs = programs;
-
-	}
-
-	/**
-	 * @author fordacious / fordacious.github.io
-	 */
-
-	function WebGLProperties() {
-
-		var properties = new WeakMap();
-
-		function get( object ) {
-
-			var map = properties.get( object );
-
-			if ( map === undefined ) {
-
-				map = {};
-				properties.set( object, map );
-
-			}
-
-			return map;
-
-		}
-
-		function remove( object ) {
-
-			properties.delete( object );
-
-		}
-
-		function update( object, key, value ) {
-
-			properties.get( object )[ key ] = value;
-
-		}
-
-		function dispose() {
-
-			properties = new WeakMap();
-
-		}
-
-		return {
-			get: get,
-			remove: remove,
-			update: update,
-			dispose: dispose
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function painterSortStable( a, b ) {
-
-		if ( a.groupOrder !== b.groupOrder ) {
-
-			return a.groupOrder - b.groupOrder;
-
-		} else if ( a.renderOrder !== b.renderOrder ) {
-
-			return a.renderOrder - b.renderOrder;
-
-		} else if ( a.program !== b.program ) {
-
-			return a.program.id - b.program.id;
-
-		} else if ( a.material.id !== b.material.id ) {
-
-			return a.material.id - b.material.id;
-
-		} else if ( a.z !== b.z ) {
-
-			return a.z - b.z;
-
-		} else {
-
-			return a.id - b.id;
-
-		}
-
-	}
-
-	function reversePainterSortStable( a, b ) {
-
-		if ( a.groupOrder !== b.groupOrder ) {
-
-			return a.groupOrder - b.groupOrder;
-
-		} else if ( a.renderOrder !== b.renderOrder ) {
-
-			return a.renderOrder - b.renderOrder;
-
-		} else if ( a.z !== b.z ) {
-
-			return b.z - a.z;
-
-		} else {
-
-			return a.id - b.id;
-
-		}
-
-	}
-
-
-	function WebGLRenderList() {
-
-		var renderItems = [];
-		var renderItemsIndex = 0;
-
-		var opaque = [];
-		var transparent = [];
-
-		var defaultProgram = { id: - 1 };
-
-		function init() {
-
-			renderItemsIndex = 0;
-
-			opaque.length = 0;
-			transparent.length = 0;
-
-		}
-
-		function getNextRenderItem( object, geometry, material, groupOrder, z, group ) {
-
-			var renderItem = renderItems[ renderItemsIndex ];
-
-			if ( renderItem === undefined ) {
-
-				renderItem = {
-					id: object.id,
-					object: object,
-					geometry: geometry,
-					material: material,
-					program: material.program || defaultProgram,
-					groupOrder: groupOrder,
-					renderOrder: object.renderOrder,
-					z: z,
-					group: group
-				};
-
-				renderItems[ renderItemsIndex ] = renderItem;
-
-			} else {
-
-				renderItem.id = object.id;
-				renderItem.object = object;
-				renderItem.geometry = geometry;
-				renderItem.material = material;
-				renderItem.program = material.program || defaultProgram;
-				renderItem.groupOrder = groupOrder;
-				renderItem.renderOrder = object.renderOrder;
-				renderItem.z = z;
-				renderItem.group = group;
-
-			}
-
-			renderItemsIndex ++;
-
-			return renderItem;
-
-		}
-
-		function push( object, geometry, material, groupOrder, z, group ) {
-
-			var renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group );
-
-			( material.transparent === true ? transparent : opaque ).push( renderItem );
-
-		}
-
-		function unshift( object, geometry, material, groupOrder, z, group ) {
-
-			var renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group );
-
-			( material.transparent === true ? transparent : opaque ).unshift( renderItem );
-
-		}
-
-		function sort() {
-
-			if ( opaque.length > 1 ) opaque.sort( painterSortStable );
-			if ( transparent.length > 1 ) transparent.sort( reversePainterSortStable );
-
-		}
-
-		return {
-			opaque: opaque,
-			transparent: transparent,
-
-			init: init,
-			push: push,
-			unshift: unshift,
-
-			sort: sort
-		};
-
-	}
-
-	function WebGLRenderLists() {
-
-		var lists = {};
-
-		function onSceneDispose( event ) {
-
-			var scene = event.target;
-
-			scene.removeEventListener( 'dispose', onSceneDispose );
-
-			delete lists[ scene.id ];
-
-		}
-
-		function get( scene, camera ) {
-
-			var cameras = lists[ scene.id ];
-			var list;
-			if ( cameras === undefined ) {
-
-				list = new WebGLRenderList();
-				lists[ scene.id ] = {};
-				lists[ scene.id ][ camera.id ] = list;
-
-				scene.addEventListener( 'dispose', onSceneDispose );
-
-			} else {
-
-				list = cameras[ camera.id ];
-				if ( list === undefined ) {
-
-					list = new WebGLRenderList();
-					cameras[ camera.id ] = list;
-
-				}
-
-			}
-
-			return list;
-
-		}
-
-		function dispose() {
-
-			lists = {};
-
-		}
-
-		return {
-			get: get,
-			dispose: dispose
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function UniformsCache() {
-
-		var lights = {};
-
-		return {
-
-			get: function ( light ) {
-
-				if ( lights[ light.id ] !== undefined ) {
-
-					return lights[ light.id ];
-
-				}
-
-				var uniforms;
-
-				switch ( light.type ) {
-
-					case 'DirectionalLight':
-						uniforms = {
-							direction: new Vector3(),
-							color: new Color(),
-
-							shadow: false,
-							shadowBias: 0,
-							shadowRadius: 1,
-							shadowMapSize: new Vector2()
-						};
-						break;
-
-					case 'SpotLight':
-						uniforms = {
-							position: new Vector3(),
-							direction: new Vector3(),
-							color: new Color(),
-							distance: 0,
-							coneCos: 0,
-							penumbraCos: 0,
-							decay: 0,
-
-							shadow: false,
-							shadowBias: 0,
-							shadowRadius: 1,
-							shadowMapSize: new Vector2()
-						};
-						break;
-
-					case 'PointLight':
-						uniforms = {
-							position: new Vector3(),
-							color: new Color(),
-							distance: 0,
-							decay: 0,
-
-							shadow: false,
-							shadowBias: 0,
-							shadowRadius: 1,
-							shadowMapSize: new Vector2(),
-							shadowCameraNear: 1,
-							shadowCameraFar: 1000
-						};
-						break;
-
-					case 'HemisphereLight':
-						uniforms = {
-							direction: new Vector3(),
-							skyColor: new Color(),
-							groundColor: new Color()
-						};
-						break;
-
-					case 'RectAreaLight':
-						uniforms = {
-							color: new Color(),
-							position: new Vector3(),
-							halfWidth: new Vector3(),
-							halfHeight: new Vector3()
-							// TODO (abelnation): set RectAreaLight shadow uniforms
-						};
-						break;
-
-				}
-
-				lights[ light.id ] = uniforms;
-
-				return uniforms;
-
-			}
-
-		};
-
-	}
-
-	var count = 0;
-
-	function WebGLLights() {
-
-		var cache = new UniformsCache();
-
-		var state = {
-
-			id: count ++,
-
-			hash: {
-				stateID: - 1,
-				directionalLength: - 1,
-				pointLength: - 1,
-				spotLength: - 1,
-				rectAreaLength: - 1,
-				hemiLength: - 1,
-				shadowsLength: - 1
-			},
-
-			ambient: [ 0, 0, 0 ],
-			probe: [],
-			directional: [],
-			directionalShadowMap: [],
-			directionalShadowMatrix: [],
-			spot: [],
-			spotShadowMap: [],
-			spotShadowMatrix: [],
-			rectArea: [],
-			point: [],
-			pointShadowMap: [],
-			pointShadowMatrix: [],
-			hemi: []
-
-		};
-
-		for ( var i = 0; i < 9; i ++ ) state.probe.push( new Vector3() );
-
-		var vector3 = new Vector3();
-		var matrix4 = new Matrix4();
-		var matrix42 = new Matrix4();
-
-		function setup( lights, shadows, camera ) {
-
-			var r = 0, g = 0, b = 0;
-
-			for ( var i = 0; i < 9; i ++ ) state.probe[ i ].set( 0, 0, 0 );
-
-			var directionalLength = 0;
-			var pointLength = 0;
-			var spotLength = 0;
-			var rectAreaLength = 0;
-			var hemiLength = 0;
-
-			var viewMatrix = camera.matrixWorldInverse;
-
-			for ( var i = 0, l = lights.length; i < l; i ++ ) {
-
-				var light = lights[ i ];
-
-				var color = light.color;
-				var intensity = light.intensity;
-				var distance = light.distance;
-
-				var shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;
-
-				if ( light.isAmbientLight ) {
-
-					r += color.r * intensity;
-					g += color.g * intensity;
-					b += color.b * intensity;
-
-				} else if ( light.isLightProbe ) {
-
-					for ( var j = 0; j < 9; j ++ ) {
-
-						state.probe[ j ].addScaledVector( light.sh.coefficients[ j ], intensity );
-
-					}
-
-				} else if ( light.isDirectionalLight ) {
-
-					var uniforms = cache.get( light );
-
-					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
-					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
-					vector3.setFromMatrixPosition( light.target.matrixWorld );
-					uniforms.direction.sub( vector3 );
-					uniforms.direction.transformDirection( viewMatrix );
-
-					uniforms.shadow = light.castShadow;
-
-					if ( light.castShadow ) {
-
-						var shadow = light.shadow;
-
-						uniforms.shadowBias = shadow.bias;
-						uniforms.shadowRadius = shadow.radius;
-						uniforms.shadowMapSize = shadow.mapSize;
-
-					}
-
-					state.directionalShadowMap[ directionalLength ] = shadowMap;
-					state.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;
-					state.directional[ directionalLength ] = uniforms;
-
-					directionalLength ++;
-
-				} else if ( light.isSpotLight ) {
-
-					var uniforms = cache.get( light );
-
-					uniforms.position.setFromMatrixPosition( light.matrixWorld );
-					uniforms.position.applyMatrix4( viewMatrix );
-
-					uniforms.color.copy( color ).multiplyScalar( intensity );
-					uniforms.distance = distance;
-
-					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
-					vector3.setFromMatrixPosition( light.target.matrixWorld );
-					uniforms.direction.sub( vector3 );
-					uniforms.direction.transformDirection( viewMatrix );
-
-					uniforms.coneCos = Math.cos( light.angle );
-					uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );
-					uniforms.decay = light.decay;
-
-					uniforms.shadow = light.castShadow;
-
-					if ( light.castShadow ) {
-
-						var shadow = light.shadow;
-
-						uniforms.shadowBias = shadow.bias;
-						uniforms.shadowRadius = shadow.radius;
-						uniforms.shadowMapSize = shadow.mapSize;
-
-					}
-
-					state.spotShadowMap[ spotLength ] = shadowMap;
-					state.spotShadowMatrix[ spotLength ] = light.shadow.matrix;
-					state.spot[ spotLength ] = uniforms;
-
-					spotLength ++;
-
-				} else if ( light.isRectAreaLight ) {
-
-					var uniforms = cache.get( light );
-
-					// (a) intensity is the total visible light emitted
-					//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );
-
-					// (b) intensity is the brightness of the light
-					uniforms.color.copy( color ).multiplyScalar( intensity );
-
-					uniforms.position.setFromMatrixPosition( light.matrixWorld );
-					uniforms.position.applyMatrix4( viewMatrix );
-
-					// extract local rotation of light to derive width/height half vectors
-					matrix42.identity();
-					matrix4.copy( light.matrixWorld );
-					matrix4.premultiply( viewMatrix );
-					matrix42.extractRotation( matrix4 );
-
-					uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );
-					uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );
-
-					uniforms.halfWidth.applyMatrix4( matrix42 );
-					uniforms.halfHeight.applyMatrix4( matrix42 );
-
-					// TODO (abelnation): RectAreaLight distance?
-					// uniforms.distance = distance;
-
-					state.rectArea[ rectAreaLength ] = uniforms;
-
-					rectAreaLength ++;
-
-				} else if ( light.isPointLight ) {
-
-					var uniforms = cache.get( light );
-
-					uniforms.position.setFromMatrixPosition( light.matrixWorld );
-					uniforms.position.applyMatrix4( viewMatrix );
-
-					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
-					uniforms.distance = light.distance;
-					uniforms.decay = light.decay;
-
-					uniforms.shadow = light.castShadow;
-
-					if ( light.castShadow ) {
-
-						var shadow = light.shadow;
-
-						uniforms.shadowBias = shadow.bias;
-						uniforms.shadowRadius = shadow.radius;
-						uniforms.shadowMapSize = shadow.mapSize;
-						uniforms.shadowCameraNear = shadow.camera.near;
-						uniforms.shadowCameraFar = shadow.camera.far;
-
-					}
-
-					state.pointShadowMap[ pointLength ] = shadowMap;
-					state.pointShadowMatrix[ pointLength ] = light.shadow.matrix;
-					state.point[ pointLength ] = uniforms;
-
-					pointLength ++;
-
-				} else if ( light.isHemisphereLight ) {
-
-					var uniforms = cache.get( light );
-
-					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
-					uniforms.direction.transformDirection( viewMatrix );
-					uniforms.direction.normalize();
-
-					uniforms.skyColor.copy( light.color ).multiplyScalar( intensity );
-					uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );
-
-					state.hemi[ hemiLength ] = uniforms;
-
-					hemiLength ++;
-
-				}
-
-			}
-
-			state.ambient[ 0 ] = r;
-			state.ambient[ 1 ] = g;
-			state.ambient[ 2 ] = b;
-
-			state.directional.length = directionalLength;
-			state.spot.length = spotLength;
-			state.rectArea.length = rectAreaLength;
-			state.point.length = pointLength;
-			state.hemi.length = hemiLength;
-
-			state.hash.stateID = state.id;
-			state.hash.directionalLength = directionalLength;
-			state.hash.pointLength = pointLength;
-			state.hash.spotLength = spotLength;
-			state.hash.rectAreaLength = rectAreaLength;
-			state.hash.hemiLength = hemiLength;
-			state.hash.shadowsLength = shadows.length;
-
-		}
-
-		return {
-			setup: setup,
-			state: state
-		};
-
-	}
-
-	/**
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function WebGLRenderState() {
-
-		var lights = new WebGLLights();
-
-		var lightsArray = [];
-		var shadowsArray = [];
-
-		function init() {
-
-			lightsArray.length = 0;
-			shadowsArray.length = 0;
-
-		}
-
-		function pushLight( light ) {
-
-			lightsArray.push( light );
-
-		}
-
-		function pushShadow( shadowLight ) {
-
-			shadowsArray.push( shadowLight );
-
-		}
-
-		function setupLights( camera ) {
-
-			lights.setup( lightsArray, shadowsArray, camera );
-
-		}
-
-		var state = {
-			lightsArray: lightsArray,
-			shadowsArray: shadowsArray,
-
-			lights: lights
-		};
-
-		return {
-			init: init,
-			state: state,
-			setupLights: setupLights,
-
-			pushLight: pushLight,
-			pushShadow: pushShadow
-		};
-
-	}
-
-	function WebGLRenderStates() {
-
-		var renderStates = {};
-
-		function onSceneDispose( event ) {
-
-			var scene = event.target;
-
-			scene.removeEventListener( 'dispose', onSceneDispose );
-
-			delete renderStates[ scene.id ];
-
-		}
-
-		function get( scene, camera ) {
-
-			var renderState;
-
-			if ( renderStates[ scene.id ] === undefined ) {
-
-				renderState = new WebGLRenderState();
-				renderStates[ scene.id ] = {};
-				renderStates[ scene.id ][ camera.id ] = renderState;
-
-				scene.addEventListener( 'dispose', onSceneDispose );
-
-			} else {
-
-				if ( renderStates[ scene.id ][ camera.id ] === undefined ) {
-
-					renderState = new WebGLRenderState();
-					renderStates[ scene.id ][ camera.id ] = renderState;
-
-				} else {
-
-					renderState = renderStates[ scene.id ][ camera.id ];
-
-				}
-
-			}
-
-			return renderState;
-
-		}
-
-		function dispose() {
-
-			renderStates = {};
-
-		}
-
-		return {
-			get: get,
-			dispose: dispose
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author bhouston / https://clara.io
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *
-	 *  opacity: <float>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>
-	 * }
-	 */
-
-	function MeshDepthMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshDepthMaterial';
-
-		this.depthPacking = BasicDepthPacking;
-
-		this.skinning = false;
-		this.morphTargets = false;
-
-		this.map = null;
-
-		this.alphaMap = null;
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-
-		this.fog = false;
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshDepthMaterial.prototype = Object.create( Material.prototype );
-	MeshDepthMaterial.prototype.constructor = MeshDepthMaterial;
-
-	MeshDepthMaterial.prototype.isMeshDepthMaterial = true;
-
-	MeshDepthMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.depthPacking = source.depthPacking;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-
-		this.map = source.map;
-
-		this.alphaMap = source.alphaMap;
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-
-		return this;
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *
-	 *  referencePosition: <float>,
-	 *  nearDistance: <float>,
-	 *  farDistance: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>
-	 *
-	 * }
-	 */
-
-	function MeshDistanceMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshDistanceMaterial';
-
-		this.referencePosition = new Vector3();
-		this.nearDistance = 1;
-		this.farDistance = 1000;
-
-		this.skinning = false;
-		this.morphTargets = false;
-
-		this.map = null;
-
-		this.alphaMap = null;
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.fog = false;
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshDistanceMaterial.prototype = Object.create( Material.prototype );
-	MeshDistanceMaterial.prototype.constructor = MeshDistanceMaterial;
-
-	MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;
-
-	MeshDistanceMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.referencePosition.copy( source.referencePosition );
-		this.nearDistance = source.nearDistance;
-		this.farDistance = source.farDistance;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-
-		this.map = source.map;
-
-		this.alphaMap = source.alphaMap;
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		return this;
-
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLShadowMap( _renderer, _objects, maxTextureSize ) {
-
-		var _frustum = new Frustum(),
-			_projScreenMatrix = new Matrix4(),
-
-			_shadowMapSize = new Vector2(),
-			_maxShadowMapSize = new Vector2( maxTextureSize, maxTextureSize ),
-
-			_lookTarget = new Vector3(),
-			_lightPositionWorld = new Vector3(),
-
-			_MorphingFlag = 1,
-			_SkinningFlag = 2,
-
-			_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,
-
-			_depthMaterials = new Array( _NumberOfMaterialVariants ),
-			_distanceMaterials = new Array( _NumberOfMaterialVariants ),
-
-			_materialCache = {};
-
-		var shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide };
-
-		var cubeDirections = [
-			new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),
-			new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )
-		];
-
-		var cubeUps = [
-			new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),
-			new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),	new Vector3( 0, 0, - 1 )
-		];
-
-		var cube2DViewPorts = [
-			new Vector4(), new Vector4(), new Vector4(),
-			new Vector4(), new Vector4(), new Vector4()
-		];
-
-		// init
-
-		for ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {
-
-			var useMorphing = ( i & _MorphingFlag ) !== 0;
-			var useSkinning = ( i & _SkinningFlag ) !== 0;
-
-			var depthMaterial = new MeshDepthMaterial( {
-
-				depthPacking: RGBADepthPacking,
-
-				morphTargets: useMorphing,
-				skinning: useSkinning
-
-			} );
-
-			_depthMaterials[ i ] = depthMaterial;
-
-			//
-
-			var distanceMaterial = new MeshDistanceMaterial( {
-
-				morphTargets: useMorphing,
-				skinning: useSkinning
-
-			} );
-
-			_distanceMaterials[ i ] = distanceMaterial;
-
-		}
-
-		//
-
-		var scope = this;
-
-		this.enabled = false;
-
-		this.autoUpdate = true;
-		this.needsUpdate = false;
-
-		this.type = PCFShadowMap;
-
-		this.render = function ( lights, scene, camera ) {
-
-			if ( scope.enabled === false ) return;
-			if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;
-
-			if ( lights.length === 0 ) return;
-
-			var currentRenderTarget = _renderer.getRenderTarget();
-			var activeCubeFace = _renderer.getActiveCubeFace();
-			var activeMipMapLevel = _renderer.getActiveMipMapLevel();
-
-			var _state = _renderer.state;
-
-			// Set GL state for depth map.
-			_state.setBlending( NoBlending );
-			_state.buffers.color.setClear( 1, 1, 1, 1 );
-			_state.buffers.depth.setTest( true );
-			_state.setScissorTest( false );
-
-			// render depth map
-
-			var faceCount;
-
-			for ( var i = 0, il = lights.length; i < il; i ++ ) {
-
-				var light = lights[ i ];
-				var shadow = light.shadow;
-				var isPointLight = light && light.isPointLight;
-
-				if ( shadow === undefined ) {
-
-					console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );
-					continue;
-
-				}
-
-				var shadowCamera = shadow.camera;
-
-				_shadowMapSize.copy( shadow.mapSize );
-				_shadowMapSize.min( _maxShadowMapSize );
-
-				if ( isPointLight ) {
-
-					var vpWidth = _shadowMapSize.x;
-					var vpHeight = _shadowMapSize.y;
-
-					// These viewports map a cube-map onto a 2D texture with the
-					// following orientation:
-					//
-					//  xzXZ
-					//   y Y
-					//
-					// X - Positive x direction
-					// x - Negative x direction
-					// Y - Positive y direction
-					// y - Negative y direction
-					// Z - Positive z direction
-					// z - Negative z direction
-
-					// positive X
-					cube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );
-					// negative X
-					cube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );
-					// positive Z
-					cube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );
-					// negative Z
-					cube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );
-					// positive Y
-					cube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );
-					// negative Y
-					cube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );
-
-					_shadowMapSize.x *= 4.0;
-					_shadowMapSize.y *= 2.0;
-
-				}
-
-				if ( shadow.map === null ) {
-
-					var pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };
-
-					shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );
-					shadow.map.texture.name = light.name + ".shadowMap";
-
-					shadowCamera.updateProjectionMatrix();
-
-				}
-
-				if ( shadow.isSpotLightShadow ) {
-
-					shadow.update( light );
-
-				}
-
-				var shadowMap = shadow.map;
-				var shadowMatrix = shadow.matrix;
-
-				_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );
-				shadowCamera.position.copy( _lightPositionWorld );
-
-				if ( isPointLight ) {
-
-					faceCount = 6;
-
-					// for point lights we set the shadow matrix to be a translation-only matrix
-					// equal to inverse of the light's position
-
-					shadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );
-
-				} else {
-
-					faceCount = 1;
-
-					_lookTarget.setFromMatrixPosition( light.target.matrixWorld );
-					shadowCamera.lookAt( _lookTarget );
-					shadowCamera.updateMatrixWorld();
-
-					// compute shadow matrix
-
-					shadowMatrix.set(
-						0.5, 0.0, 0.0, 0.5,
-						0.0, 0.5, 0.0, 0.5,
-						0.0, 0.0, 0.5, 0.5,
-						0.0, 0.0, 0.0, 1.0
-					);
-
-					shadowMatrix.multiply( shadowCamera.projectionMatrix );
-					shadowMatrix.multiply( shadowCamera.matrixWorldInverse );
-
-				}
-
-				_renderer.setRenderTarget( shadowMap );
-				_renderer.clear();
-
-				// render shadow map for each cube face (if omni-directional) or
-				// run a single pass if not
-
-				for ( var face = 0; face < faceCount; face ++ ) {
-
-					if ( isPointLight ) {
-
-						_lookTarget.copy( shadowCamera.position );
-						_lookTarget.add( cubeDirections[ face ] );
-						shadowCamera.up.copy( cubeUps[ face ] );
-						shadowCamera.lookAt( _lookTarget );
-						shadowCamera.updateMatrixWorld();
-
-						var vpDimensions = cube2DViewPorts[ face ];
-						_state.viewport( vpDimensions );
-
-					}
-
-					// update camera matrices and frustum
-
-					_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );
-					_frustum.setFromMatrix( _projScreenMatrix );
-
-					// set object matrices & frustum culling
-
-					renderObject( scene, camera, shadowCamera, isPointLight );
-
-				}
-
-			}
-
-			scope.needsUpdate = false;
-
-			_renderer.setRenderTarget( currentRenderTarget, activeCubeFace, activeMipMapLevel );
-
-		};
-
-		function getDepthMaterial( object, material, isPointLight, lightPositionWorld, shadowCameraNear, shadowCameraFar ) {
-
-			var geometry = object.geometry;
-
-			var result = null;
-
-			var materialVariants = _depthMaterials;
-			var customMaterial = object.customDepthMaterial;
-
-			if ( isPointLight ) {
-
-				materialVariants = _distanceMaterials;
-				customMaterial = object.customDistanceMaterial;
-
-			}
-
-			if ( ! customMaterial ) {
-
-				var useMorphing = false;
-
-				if ( material.morphTargets ) {
-
-					if ( geometry && geometry.isBufferGeometry ) {
-
-						useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;
-
-					} else if ( geometry && geometry.isGeometry ) {
-
-						useMorphing = geometry.morphTargets && geometry.morphTargets.length > 0;
-
-					}
-
-				}
-
-				if ( object.isSkinnedMesh && material.skinning === false ) {
-
-					console.warn( 'THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object );
-
-				}
-
-				var useSkinning = object.isSkinnedMesh && material.skinning;
-
-				var variantIndex = 0;
-
-				if ( useMorphing ) variantIndex |= _MorphingFlag;
-				if ( useSkinning ) variantIndex |= _SkinningFlag;
-
-				result = materialVariants[ variantIndex ];
-
-			} else {
-
-				result = customMaterial;
-
-			}
-
-			if ( _renderer.localClippingEnabled &&
-					material.clipShadows === true &&
-					material.clippingPlanes.length !== 0 ) {
-
-				// in this case we need a unique material instance reflecting the
-				// appropriate state
-
-				var keyA = result.uuid, keyB = material.uuid;
-
-				var materialsForVariant = _materialCache[ keyA ];
-
-				if ( materialsForVariant === undefined ) {
-
-					materialsForVariant = {};
-					_materialCache[ keyA ] = materialsForVariant;
-
-				}
-
-				var cachedMaterial = materialsForVariant[ keyB ];
-
-				if ( cachedMaterial === undefined ) {
-
-					cachedMaterial = result.clone();
-					materialsForVariant[ keyB ] = cachedMaterial;
-
-				}
-
-				result = cachedMaterial;
-
-			}
-
-			result.visible = material.visible;
-			result.wireframe = material.wireframe;
-
-			result.side = ( material.shadowSide != null ) ? material.shadowSide : shadowSide[ material.side ];
-
-			result.clipShadows = material.clipShadows;
-			result.clippingPlanes = material.clippingPlanes;
-			result.clipIntersection = material.clipIntersection;
-
-			result.wireframeLinewidth = material.wireframeLinewidth;
-			result.linewidth = material.linewidth;
-
-			if ( isPointLight && result.isMeshDistanceMaterial ) {
-
-				result.referencePosition.copy( lightPositionWorld );
-				result.nearDistance = shadowCameraNear;
-				result.farDistance = shadowCameraFar;
-
-			}
-
-			return result;
-
-		}
-
-		function renderObject( object, camera, shadowCamera, isPointLight ) {
-
-			if ( object.visible === false ) return;
-
-			var visible = object.layers.test( camera.layers );
-
-			if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {
-
-				if ( object.castShadow && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {
-
-					object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );
-
-					var geometry = _objects.update( object );
-					var material = object.material;
-
-					if ( Array.isArray( material ) ) {
-
-						var groups = geometry.groups;
-
-						for ( var k = 0, kl = groups.length; k < kl; k ++ ) {
-
-							var group = groups[ k ];
-							var groupMaterial = material[ group.materialIndex ];
-
-							if ( groupMaterial && groupMaterial.visible ) {
-
-								var depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
-								_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );
-
-							}
-
-						}
-
-					} else if ( material.visible ) {
-
-						var depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
-						_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );
-
-					}
-
-				}
-
-			}
-
-			var children = object.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				renderObject( children[ i ], camera, shadowCamera, isPointLight );
-
-			}
-
-		}
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLState( gl, extensions, utils, capabilities ) {
-
-		function ColorBuffer() {
-
-			var locked = false;
-
-			var color = new Vector4();
-			var currentColorMask = null;
-			var currentColorClear = new Vector4( 0, 0, 0, 0 );
-
-			return {
-
-				setMask: function ( colorMask ) {
-
-					if ( currentColorMask !== colorMask && ! locked ) {
-
-						gl.colorMask( colorMask, colorMask, colorMask, colorMask );
-						currentColorMask = colorMask;
-
-					}
-
-				},
-
-				setLocked: function ( lock ) {
-
-					locked = lock;
-
-				},
-
-				setClear: function ( r, g, b, a, premultipliedAlpha ) {
-
-					if ( premultipliedAlpha === true ) {
-
-						r *= a; g *= a; b *= a;
-
-					}
-
-					color.set( r, g, b, a );
-
-					if ( currentColorClear.equals( color ) === false ) {
-
-						gl.clearColor( r, g, b, a );
-						currentColorClear.copy( color );
-
-					}
-
-				},
-
-				reset: function () {
-
-					locked = false;
-
-					currentColorMask = null;
-					currentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state
-
-				}
-
-			};
-
-		}
-
-		function DepthBuffer() {
-
-			var locked = false;
-
-			var currentDepthMask = null;
-			var currentDepthFunc = null;
-			var currentDepthClear = null;
-
-			return {
-
-				setTest: function ( depthTest ) {
-
-					if ( depthTest ) {
-
-						enable( 2929 );
-
-					} else {
-
-						disable( 2929 );
-
-					}
-
-				},
-
-				setMask: function ( depthMask ) {
-
-					if ( currentDepthMask !== depthMask && ! locked ) {
-
-						gl.depthMask( depthMask );
-						currentDepthMask = depthMask;
-
-					}
-
-				},
-
-				setFunc: function ( depthFunc ) {
-
-					if ( currentDepthFunc !== depthFunc ) {
-
-						if ( depthFunc ) {
-
-							switch ( depthFunc ) {
-
-								case NeverDepth:
-
-									gl.depthFunc( 512 );
-									break;
-
-								case AlwaysDepth:
-
-									gl.depthFunc( 519 );
-									break;
-
-								case LessDepth:
-
-									gl.depthFunc( 513 );
-									break;
-
-								case LessEqualDepth:
-
-									gl.depthFunc( 515 );
-									break;
-
-								case EqualDepth:
-
-									gl.depthFunc( 514 );
-									break;
-
-								case GreaterEqualDepth:
-
-									gl.depthFunc( 518 );
-									break;
-
-								case GreaterDepth:
-
-									gl.depthFunc( 516 );
-									break;
-
-								case NotEqualDepth:
-
-									gl.depthFunc( 517 );
-									break;
-
-								default:
-
-									gl.depthFunc( 515 );
-
-							}
-
-						} else {
-
-							gl.depthFunc( 515 );
-
-						}
-
-						currentDepthFunc = depthFunc;
-
-					}
-
-				},
-
-				setLocked: function ( lock ) {
-
-					locked = lock;
-
-				},
-
-				setClear: function ( depth ) {
-
-					if ( currentDepthClear !== depth ) {
-
-						gl.clearDepth( depth );
-						currentDepthClear = depth;
-
-					}
-
-				},
-
-				reset: function () {
-
-					locked = false;
-
-					currentDepthMask = null;
-					currentDepthFunc = null;
-					currentDepthClear = null;
-
-				}
-
-			};
-
-		}
-
-		function StencilBuffer() {
-
-			var locked = false;
-
-			var currentStencilMask = null;
-			var currentStencilFunc = null;
-			var currentStencilRef = null;
-			var currentStencilFuncMask = null;
-			var currentStencilFail = null;
-			var currentStencilZFail = null;
-			var currentStencilZPass = null;
-			var currentStencilClear = null;
-
-			return {
-
-				setTest: function ( stencilTest ) {
-
-					if ( stencilTest ) {
-
-						enable( 2960 );
-
-					} else {
-
-						disable( 2960 );
-
-					}
-
-				},
-
-				setMask: function ( stencilMask ) {
-
-					if ( currentStencilMask !== stencilMask && ! locked ) {
-
-						gl.stencilMask( stencilMask );
-						currentStencilMask = stencilMask;
-
-					}
-
-				},
-
-				setFunc: function ( stencilFunc, stencilRef, stencilMask ) {
-
-					if ( currentStencilFunc !== stencilFunc ||
-					     currentStencilRef 	!== stencilRef 	||
-					     currentStencilFuncMask !== stencilMask ) {
-
-						gl.stencilFunc( stencilFunc, stencilRef, stencilMask );
-
-						currentStencilFunc = stencilFunc;
-						currentStencilRef = stencilRef;
-						currentStencilFuncMask = stencilMask;
-
-					}
-
-				},
-
-				setOp: function ( stencilFail, stencilZFail, stencilZPass ) {
-
-					if ( currentStencilFail	 !== stencilFail 	||
-					     currentStencilZFail !== stencilZFail ||
-					     currentStencilZPass !== stencilZPass ) {
-
-						gl.stencilOp( stencilFail, stencilZFail, stencilZPass );
-
-						currentStencilFail = stencilFail;
-						currentStencilZFail = stencilZFail;
-						currentStencilZPass = stencilZPass;
-
-					}
-
-				},
-
-				setLocked: function ( lock ) {
-
-					locked = lock;
-
-				},
-
-				setClear: function ( stencil ) {
-
-					if ( currentStencilClear !== stencil ) {
-
-						gl.clearStencil( stencil );
-						currentStencilClear = stencil;
-
-					}
-
-				},
-
-				reset: function () {
-
-					locked = false;
-
-					currentStencilMask = null;
-					currentStencilFunc = null;
-					currentStencilRef = null;
-					currentStencilFuncMask = null;
-					currentStencilFail = null;
-					currentStencilZFail = null;
-					currentStencilZPass = null;
-					currentStencilClear = null;
-
-				}
-
-			};
-
-		}
-
-		//
-
-		var colorBuffer = new ColorBuffer();
-		var depthBuffer = new DepthBuffer();
-		var stencilBuffer = new StencilBuffer();
-
-		var maxVertexAttributes = gl.getParameter( 34921 );
-		var newAttributes = new Uint8Array( maxVertexAttributes );
-		var enabledAttributes = new Uint8Array( maxVertexAttributes );
-		var attributeDivisors = new Uint8Array( maxVertexAttributes );
-
-		var enabledCapabilities = {};
-
-		var compressedTextureFormats = null;
-
-		var currentProgram = null;
-
-		var currentBlendingEnabled = null;
-		var currentBlending = null;
-		var currentBlendEquation = null;
-		var currentBlendSrc = null;
-		var currentBlendDst = null;
-		var currentBlendEquationAlpha = null;
-		var currentBlendSrcAlpha = null;
-		var currentBlendDstAlpha = null;
-		var currentPremultipledAlpha = false;
-
-		var currentFlipSided = null;
-		var currentCullFace = null;
-
-		var currentLineWidth = null;
-
-		var currentPolygonOffsetFactor = null;
-		var currentPolygonOffsetUnits = null;
-
-		var maxTextures = gl.getParameter( 35661 );
-
-		var lineWidthAvailable = false;
-		var version = 0;
-		var glVersion = gl.getParameter( 7938 );
-
-		if ( glVersion.indexOf( 'WebGL' ) !== - 1 ) {
-
-			version = parseFloat( /^WebGL\ ([0-9])/.exec( glVersion )[ 1 ] );
-			lineWidthAvailable = ( version >= 1.0 );
-
-		} else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) {
-
-			version = parseFloat( /^OpenGL\ ES\ ([0-9])/.exec( glVersion )[ 1 ] );
-			lineWidthAvailable = ( version >= 2.0 );
-
-		}
-
-		var currentTextureSlot = null;
-		var currentBoundTextures = {};
-
-		var currentScissor = new Vector4();
-		var currentViewport = new Vector4();
-
-		function createTexture( type, target, count ) {
-
-			var data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.
-			var texture = gl.createTexture();
-
-			gl.bindTexture( type, texture );
-			gl.texParameteri( type, 10241, 9728 );
-			gl.texParameteri( type, 10240, 9728 );
-
-			for ( var i = 0; i < count; i ++ ) {
-
-				gl.texImage2D( target + i, 0, 6408, 1, 1, 0, 6408, 5121, data );
-
-			}
-
-			return texture;
-
-		}
-
-		var emptyTextures = {};
-		emptyTextures[ 3553 ] = createTexture( 3553, 3553, 1 );
-		emptyTextures[ 34067 ] = createTexture( 34067, 34069, 6 );
-
-		// init
-
-		colorBuffer.setClear( 0, 0, 0, 1 );
-		depthBuffer.setClear( 1 );
-		stencilBuffer.setClear( 0 );
-
-		enable( 2929 );
-		depthBuffer.setFunc( LessEqualDepth );
-
-		setFlipSided( false );
-		setCullFace( CullFaceBack );
-		enable( 2884 );
-
-		setBlending( NoBlending );
-
-		//
-
-		function initAttributes() {
-
-			for ( var i = 0, l = newAttributes.length; i < l; i ++ ) {
-
-				newAttributes[ i ] = 0;
-
-			}
-
-		}
-
-		function enableAttribute( attribute ) {
-
-			enableAttributeAndDivisor( attribute, 0 );
-
-		}
-
-		function enableAttributeAndDivisor( attribute, meshPerAttribute ) {
-
-			newAttributes[ attribute ] = 1;
-
-			if ( enabledAttributes[ attribute ] === 0 ) {
-
-				gl.enableVertexAttribArray( attribute );
-				enabledAttributes[ attribute ] = 1;
-
-			}
-
-			if ( attributeDivisors[ attribute ] !== meshPerAttribute ) {
-
-				var extension = capabilities.isWebGL2 ? gl : extensions.get( 'ANGLE_instanced_arrays' );
-
-				extension[ capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE' ]( attribute, meshPerAttribute );
-				attributeDivisors[ attribute ] = meshPerAttribute;
-
-			}
-
-		}
-
-		function disableUnusedAttributes() {
-
-			for ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) {
-
-				if ( enabledAttributes[ i ] !== newAttributes[ i ] ) {
-
-					gl.disableVertexAttribArray( i );
-					enabledAttributes[ i ] = 0;
-
-				}
-
-			}
-
-		}
-
-		function enable( id ) {
-
-			if ( enabledCapabilities[ id ] !== true ) {
-
-				gl.enable( id );
-				enabledCapabilities[ id ] = true;
-
-			}
-
-		}
-
-		function disable( id ) {
-
-			if ( enabledCapabilities[ id ] !== false ) {
-
-				gl.disable( id );
-				enabledCapabilities[ id ] = false;
-
-			}
-
-		}
-
-		function getCompressedTextureFormats() {
-
-			if ( compressedTextureFormats === null ) {
-
-				compressedTextureFormats = [];
-
-				if ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||
-				     extensions.get( 'WEBGL_compressed_texture_s3tc' ) ||
-				     extensions.get( 'WEBGL_compressed_texture_etc1' ) ||
-				     extensions.get( 'WEBGL_compressed_texture_astc' ) ) {
-
-					var formats = gl.getParameter( 34467 );
-
-					for ( var i = 0; i < formats.length; i ++ ) {
-
-						compressedTextureFormats.push( formats[ i ] );
-
-					}
-
-				}
-
-			}
-
-			return compressedTextureFormats;
-
-		}
-
-		function useProgram( program ) {
-
-			if ( currentProgram !== program ) {
-
-				gl.useProgram( program );
-
-				currentProgram = program;
-
-				return true;
-
-			}
-
-			return false;
-
-		}
-
-		function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {
-
-			if ( blending === NoBlending ) {
-
-				if ( currentBlendingEnabled ) {
-
-					disable( 3042 );
-					currentBlendingEnabled = false;
-
-				}
-
-				return;
-
-			}
-
-			if ( ! currentBlendingEnabled ) {
-
-				enable( 3042 );
-				currentBlendingEnabled = true;
-
-			}
-
-			if ( blending !== CustomBlending ) {
-
-				if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {
-
-					if ( currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation ) {
-
-						gl.blendEquation( 32774 );
-
-						currentBlendEquation = AddEquation;
-						currentBlendEquationAlpha = AddEquation;
-
-					}
-
-					if ( premultipliedAlpha ) {
-
-						switch ( blending ) {
-
-							case NormalBlending:
-								gl.blendFuncSeparate( 1, 771, 1, 771 );
-								break;
-
-							case AdditiveBlending:
-								gl.blendFunc( 1, 1 );
-								break;
-
-							case SubtractiveBlending:
-								gl.blendFuncSeparate( 0, 0, 769, 771 );
-								break;
-
-							case MultiplyBlending:
-								gl.blendFuncSeparate( 0, 768, 0, 770 );
-								break;
-
-							default:
-								console.error( 'THREE.WebGLState: Invalid blending: ', blending );
-								break;
-
-						}
-
-					} else {
-
-						switch ( blending ) {
-
-							case NormalBlending:
-								gl.blendFuncSeparate( 770, 771, 1, 771 );
-								break;
-
-							case AdditiveBlending:
-								gl.blendFunc( 770, 1 );
-								break;
-
-							case SubtractiveBlending:
-								gl.blendFunc( 0, 769 );
-								break;
-
-							case MultiplyBlending:
-								gl.blendFunc( 0, 768 );
-								break;
-
-							default:
-								console.error( 'THREE.WebGLState: Invalid blending: ', blending );
-								break;
-
-						}
-
-					}
-
-					currentBlendSrc = null;
-					currentBlendDst = null;
-					currentBlendSrcAlpha = null;
-					currentBlendDstAlpha = null;
-
-					currentBlending = blending;
-					currentPremultipledAlpha = premultipliedAlpha;
-
-				}
-
-				return;
-
-			}
-
-			// custom blending
-
-			blendEquationAlpha = blendEquationAlpha || blendEquation;
-			blendSrcAlpha = blendSrcAlpha || blendSrc;
-			blendDstAlpha = blendDstAlpha || blendDst;
-
-			if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {
-
-				gl.blendEquationSeparate( utils.convert( blendEquation ), utils.convert( blendEquationAlpha ) );
-
-				currentBlendEquation = blendEquation;
-				currentBlendEquationAlpha = blendEquationAlpha;
-
-			}
-
-			if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {
-
-				gl.blendFuncSeparate( utils.convert( blendSrc ), utils.convert( blendDst ), utils.convert( blendSrcAlpha ), utils.convert( blendDstAlpha ) );
-
-				currentBlendSrc = blendSrc;
-				currentBlendDst = blendDst;
-				currentBlendSrcAlpha = blendSrcAlpha;
-				currentBlendDstAlpha = blendDstAlpha;
-
-			}
-
-			currentBlending = blending;
-			currentPremultipledAlpha = null;
-
-		}
-
-		function setMaterial( material, frontFaceCW ) {
-
-			material.side === DoubleSide
-				? disable( 2884 )
-				: enable( 2884 );
-
-			var flipSided = ( material.side === BackSide );
-			if ( frontFaceCW ) flipSided = ! flipSided;
-
-			setFlipSided( flipSided );
-
-			( material.blending === NormalBlending && material.transparent === false )
-				? setBlending( NoBlending )
-				: setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );
-
-			depthBuffer.setFunc( material.depthFunc );
-			depthBuffer.setTest( material.depthTest );
-			depthBuffer.setMask( material.depthWrite );
-			colorBuffer.setMask( material.colorWrite );
-
-			setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );
-
-		}
-
-		//
-
-		function setFlipSided( flipSided ) {
-
-			if ( currentFlipSided !== flipSided ) {
-
-				if ( flipSided ) {
-
-					gl.frontFace( 2304 );
-
-				} else {
-
-					gl.frontFace( 2305 );
-
-				}
-
-				currentFlipSided = flipSided;
-
-			}
-
-		}
-
-		function setCullFace( cullFace ) {
-
-			if ( cullFace !== CullFaceNone ) {
-
-				enable( 2884 );
-
-				if ( cullFace !== currentCullFace ) {
-
-					if ( cullFace === CullFaceBack ) {
-
-						gl.cullFace( 1029 );
-
-					} else if ( cullFace === CullFaceFront ) {
-
-						gl.cullFace( 1028 );
-
-					} else {
-
-						gl.cullFace( 1032 );
-
-					}
-
-				}
-
-			} else {
-
-				disable( 2884 );
-
-			}
-
-			currentCullFace = cullFace;
-
-		}
-
-		function setLineWidth( width ) {
-
-			if ( width !== currentLineWidth ) {
-
-				if ( lineWidthAvailable ) gl.lineWidth( width );
-
-				currentLineWidth = width;
-
-			}
-
-		}
-
-		function setPolygonOffset( polygonOffset, factor, units ) {
-
-			if ( polygonOffset ) {
-
-				enable( 32823 );
-
-				if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {
-
-					gl.polygonOffset( factor, units );
-
-					currentPolygonOffsetFactor = factor;
-					currentPolygonOffsetUnits = units;
-
-				}
-
-			} else {
-
-				disable( 32823 );
-
-			}
-
-		}
-
-		function setScissorTest( scissorTest ) {
-
-			if ( scissorTest ) {
-
-				enable( 3089 );
-
-			} else {
-
-				disable( 3089 );
-
-			}
-
-		}
-
-		// texture
-
-		function activeTexture( webglSlot ) {
-
-			if ( webglSlot === undefined ) webglSlot = 33984 + maxTextures - 1;
-
-			if ( currentTextureSlot !== webglSlot ) {
-
-				gl.activeTexture( webglSlot );
-				currentTextureSlot = webglSlot;
-
-			}
-
-		}
-
-		function bindTexture( webglType, webglTexture ) {
-
-			if ( currentTextureSlot === null ) {
-
-				activeTexture();
-
-			}
-
-			var boundTexture = currentBoundTextures[ currentTextureSlot ];
-
-			if ( boundTexture === undefined ) {
-
-				boundTexture = { type: undefined, texture: undefined };
-				currentBoundTextures[ currentTextureSlot ] = boundTexture;
-
-			}
-
-			if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {
-
-				gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );
-
-				boundTexture.type = webglType;
-				boundTexture.texture = webglTexture;
-
-			}
-
-		}
-
-		function compressedTexImage2D() {
-
-			try {
-
-				gl.compressedTexImage2D.apply( gl, arguments );
-
-			} catch ( error ) {
-
-				console.error( 'THREE.WebGLState:', error );
-
-			}
-
-		}
-
-		function texImage2D() {
-
-			try {
-
-				gl.texImage2D.apply( gl, arguments );
-
-			} catch ( error ) {
-
-				console.error( 'THREE.WebGLState:', error );
-
-			}
-
-		}
-
-		function texImage3D() {
-
-			try {
-
-				gl.texImage3D.apply( gl, arguments );
-
-			} catch ( error ) {
-
-				console.error( 'THREE.WebGLState:', error );
-
-			}
-
-		}
-
-		//
-
-		function scissor( scissor ) {
-
-			if ( currentScissor.equals( scissor ) === false ) {
-
-				gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );
-				currentScissor.copy( scissor );
-
-			}
-
-		}
-
-		function viewport( viewport ) {
-
-			if ( currentViewport.equals( viewport ) === false ) {
-
-				gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );
-				currentViewport.copy( viewport );
-
-			}
-
-		}
-
-		//
-
-		function reset() {
-
-			for ( var i = 0; i < enabledAttributes.length; i ++ ) {
-
-				if ( enabledAttributes[ i ] === 1 ) {
-
-					gl.disableVertexAttribArray( i );
-					enabledAttributes[ i ] = 0;
-
-				}
-
-			}
-
-			enabledCapabilities = {};
-
-			compressedTextureFormats = null;
-
-			currentTextureSlot = null;
-			currentBoundTextures = {};
-
-			currentProgram = null;
-
-			currentBlending = null;
-
-			currentFlipSided = null;
-			currentCullFace = null;
-
-			colorBuffer.reset();
-			depthBuffer.reset();
-			stencilBuffer.reset();
-
-		}
-
-		return {
-
-			buffers: {
-				color: colorBuffer,
-				depth: depthBuffer,
-				stencil: stencilBuffer
-			},
-
-			initAttributes: initAttributes,
-			enableAttribute: enableAttribute,
-			enableAttributeAndDivisor: enableAttributeAndDivisor,
-			disableUnusedAttributes: disableUnusedAttributes,
-			enable: enable,
-			disable: disable,
-			getCompressedTextureFormats: getCompressedTextureFormats,
-
-			useProgram: useProgram,
-
-			setBlending: setBlending,
-			setMaterial: setMaterial,
-
-			setFlipSided: setFlipSided,
-			setCullFace: setCullFace,
-
-			setLineWidth: setLineWidth,
-			setPolygonOffset: setPolygonOffset,
-
-			setScissorTest: setScissorTest,
-
-			activeTexture: activeTexture,
-			bindTexture: bindTexture,
-			compressedTexImage2D: compressedTexImage2D,
-			texImage2D: texImage2D,
-			texImage3D: texImage3D,
-
-			scissor: scissor,
-			viewport: viewport,
-
-			reset: reset
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ) {
-
-		var _videoTextures = {};
-		var _canvas;
-
-		//
-
-		var useOffscreenCanvas = typeof OffscreenCanvas !== 'undefined';
-
-		function createCanvas( width, height ) {
-
-			// Use OffscreenCanvas when available. Specially needed in web workers
-
-			return useOffscreenCanvas ?
-				new OffscreenCanvas( width, height ) :
-				document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
-
-		}
-
-		function resizeImage( image, needsPowerOfTwo, needsNewCanvas, maxSize ) {
-
-			var scale = 1;
-
-			// handle case if texture exceeds max size
-
-			if ( image.width > maxSize || image.height > maxSize ) {
-
-				scale = maxSize / Math.max( image.width, image.height );
-
-			}
-
-			// only perform resize if necessary
-
-			if ( scale < 1 || needsPowerOfTwo === true ) {
-
-				// only perform resize for certain image types
-
-				if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) ||
-					( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) ||
-					( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) {
-
-					var floor = needsPowerOfTwo ? _Math.floorPowerOfTwo : Math.floor;
-
-					var width = floor( scale * image.width );
-					var height = floor( scale * image.height );
-
-					if ( _canvas === undefined ) _canvas = createCanvas( width, height );
-
-					// cube textures can't reuse the same canvas
-
-					var canvas = needsNewCanvas ? createCanvas( width, height ) : _canvas;
-
-					canvas.width = width;
-					canvas.height = height;
-
-					var context = canvas.getContext( '2d' );
-					context.drawImage( image, 0, 0, width, height );
-
-					console.warn( 'THREE.WebGLRenderer: Texture has been resized from (' + image.width + 'x' + image.height + ') to (' + width + 'x' + height + ').' );
-
-					return canvas;
-
-				} else {
-
-					if ( 'data' in image ) {
-
-						console.warn( 'THREE.WebGLRenderer: Image in DataTexture is too big (' + image.width + 'x' + image.height + ').' );
-
-					}
-
-					return image;
-
-				}
-
-			}
-
-			return image;
-
-		}
-
-		function isPowerOfTwo( image ) {
-
-			return _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height );
-
-		}
-
-		function textureNeedsPowerOfTwo( texture ) {
-
-			if ( capabilities.isWebGL2 ) return false;
-
-			return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||
-				( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );
-
-		}
-
-		function textureNeedsGenerateMipmaps( texture, supportsMips ) {
-
-			return texture.generateMipmaps && supportsMips &&
-				texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
-
-		}
-
-		function generateMipmap( target, texture, width, height ) {
-
-			_gl.generateMipmap( target );
-
-			var textureProperties = properties.get( texture );
-
-			// Note: Math.log( x ) * Math.LOG2E used instead of Math.log2( x ) which is not supported by IE11
-			textureProperties.__maxMipLevel = Math.log( Math.max( width, height ) ) * Math.LOG2E;
-
-		}
-
-		function getInternalFormat( glFormat, glType ) {
-
-			if ( ! capabilities.isWebGL2 ) return glFormat;
-
-			var internalFormat = glFormat;
-
-			if ( glFormat === 6403 ) {
-
-				if ( glType === 5126 ) internalFormat = 33326;
-				if ( glType === 5131 ) internalFormat = 33325;
-				if ( glType === 5121 ) internalFormat = 33321;
-
-			}
-
-			if ( glFormat === 6407 ) {
-
-				if ( glType === 5126 ) internalFormat = 34837;
-				if ( glType === 5131 ) internalFormat = 34843;
-				if ( glType === 5121 ) internalFormat = 32849;
-
-			}
-
-			if ( glFormat === 6408 ) {
-
-				if ( glType === 5126 ) internalFormat = 34836;
-				if ( glType === 5131 ) internalFormat = 34842;
-				if ( glType === 5121 ) internalFormat = 32856;
-
-			}
-
-			if ( internalFormat === 33325 || internalFormat === 33326 ||
-				internalFormat === 34842 || internalFormat === 34836 ) {
-
-				extensions.get( 'EXT_color_buffer_float' );
-
-			} else if ( internalFormat === 34843 || internalFormat === 34837 ) {
-
-				console.warn( 'THREE.WebGLRenderer: Floating point textures with RGB format not supported. Please use RGBA instead.' );
-
-			}
-
-			return internalFormat;
-
-		}
-
-		// Fallback filters for non-power-of-2 textures
-
-		function filterFallback( f ) {
-
-			if ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) {
-
-				return 9728;
-
-			}
-
-			return 9729;
-
-		}
-
-		//
-
-		function onTextureDispose( event ) {
-
-			var texture = event.target;
-
-			texture.removeEventListener( 'dispose', onTextureDispose );
-
-			deallocateTexture( texture );
-
-			if ( texture.isVideoTexture ) {
-
-				delete _videoTextures[ texture.id ];
-
-			}
-
-			info.memory.textures --;
-
-		}
-
-		function onRenderTargetDispose( event ) {
-
-			var renderTarget = event.target;
-
-			renderTarget.removeEventListener( 'dispose', onRenderTargetDispose );
-
-			deallocateRenderTarget( renderTarget );
-
-			info.memory.textures --;
-
-		}
-
-		//
-
-		function deallocateTexture( texture ) {
-
-			var textureProperties = properties.get( texture );
-
-			if ( textureProperties.__webglInit === undefined ) return;
-
-			_gl.deleteTexture( textureProperties.__webglTexture );
-
-			properties.remove( texture );
-
-		}
-
-		function deallocateRenderTarget( renderTarget ) {
-
-			var renderTargetProperties = properties.get( renderTarget );
-			var textureProperties = properties.get( renderTarget.texture );
-
-			if ( ! renderTarget ) return;
-
-			if ( textureProperties.__webglTexture !== undefined ) {
-
-				_gl.deleteTexture( textureProperties.__webglTexture );
-
-			}
-
-			if ( renderTarget.depthTexture ) {
-
-				renderTarget.depthTexture.dispose();
-
-			}
-
-			if ( renderTarget.isWebGLRenderTargetCube ) {
-
-				for ( var i = 0; i < 6; i ++ ) {
-
-					_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );
-					if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );
-
-				}
-
-			} else {
-
-				_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );
-				if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );
-
-			}
-
-			properties.remove( renderTarget.texture );
-			properties.remove( renderTarget );
-
-		}
-
-		//
-
-		var textureUnits = 0;
-
-		function resetTextureUnits() {
-
-			textureUnits = 0;
-
-		}
-
-		function allocateTextureUnit() {
-
-			var textureUnit = textureUnits;
-
-			if ( textureUnit >= capabilities.maxTextures ) {
-
-				console.warn( 'THREE.WebGLTextures: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );
-
-			}
-
-			textureUnits += 1;
-
-			return textureUnit;
-
-		}
-
-		//
-
-		function setTexture2D( texture, slot ) {
-
-			var textureProperties = properties.get( texture );
-
-			if ( texture.isVideoTexture ) updateVideoTexture( texture );
-
-			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
-
-				var image = texture.image;
-
-				if ( image === undefined ) {
-
-					console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined' );
-
-				} else if ( image.complete === false ) {
-
-					console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete' );
-
-				} else {
-
-					uploadTexture( textureProperties, texture, slot );
-					return;
-
-				}
-
-			}
-
-			state.activeTexture( 33984 + slot );
-			state.bindTexture( 3553, textureProperties.__webglTexture );
-
-		}
-
-		function setTexture2DArray( texture, slot ) {
-
-			var textureProperties = properties.get( texture );
-
-			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
-
-				uploadTexture( textureProperties, texture, slot );
-				return;
-
-			}
-
-			state.activeTexture( 33984 + slot );
-			state.bindTexture( 35866, textureProperties.__webglTexture );
-
-		}
-
-		function setTexture3D( texture, slot ) {
-
-			var textureProperties = properties.get( texture );
-
-			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
-
-				uploadTexture( textureProperties, texture, slot );
-				return;
-
-			}
-
-			state.activeTexture( 33984 + slot );
-			state.bindTexture( 32879, textureProperties.__webglTexture );
-
-		}
-
-		function setTextureCube( texture, slot ) {
-
-			var textureProperties = properties.get( texture );
-
-			if ( texture.image.length === 6 ) {
-
-				if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
-
-					initTexture( textureProperties, texture );
-
-					state.activeTexture( 33984 + slot );
-					state.bindTexture( 34067, textureProperties.__webglTexture );
-
-					_gl.pixelStorei( 37440, texture.flipY );
-
-					var isCompressed = ( texture && texture.isCompressedTexture );
-					var isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );
-
-					var cubeImage = [];
-
-					for ( var i = 0; i < 6; i ++ ) {
-
-						if ( ! isCompressed && ! isDataTexture ) {
-
-							cubeImage[ i ] = resizeImage( texture.image[ i ], false, true, capabilities.maxCubemapSize );
-
-						} else {
-
-							cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];
-
-						}
-
-					}
-
-					var image = cubeImage[ 0 ],
-						supportsMips = isPowerOfTwo( image ) || capabilities.isWebGL2,
-						glFormat = utils.convert( texture.format ),
-						glType = utils.convert( texture.type ),
-						glInternalFormat = getInternalFormat( glFormat, glType );
-
-					setTextureParameters( 34067, texture, supportsMips );
-
-					for ( var i = 0; i < 6; i ++ ) {
-
-						if ( ! isCompressed ) {
-
-							if ( isDataTexture ) {
-
-								state.texImage2D( 34069 + i, 0, glInternalFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );
-
-							} else {
-
-								state.texImage2D( 34069 + i, 0, glInternalFormat, glFormat, glType, cubeImage[ i ] );
-
-							}
-
-						} else {
-
-							var mipmap, mipmaps = cubeImage[ i ].mipmaps;
-
-							for ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {
-
-								mipmap = mipmaps[ j ];
-
-								if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {
-
-									if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {
-
-										state.compressedTexImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );
-
-									} else {
-
-										console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' );
-
-									}
-
-								} else {
-
-									state.texImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
-
-								}
-
-							}
-
-						}
-
-					}
-
-					if ( ! isCompressed ) {
-
-						textureProperties.__maxMipLevel = 0;
-
-					} else {
-
-						textureProperties.__maxMipLevel = mipmaps.length - 1;
-
-					}
-
-					if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {
-
-						// We assume images for cube map have the same size.
-						generateMipmap( 34067, texture, image.width, image.height );
-
-					}
-
-					textureProperties.__version = texture.version;
-
-					if ( texture.onUpdate ) texture.onUpdate( texture );
-
-				} else {
-
-					state.activeTexture( 33984 + slot );
-					state.bindTexture( 34067, textureProperties.__webglTexture );
-
-				}
-
-			}
-
-		}
-
-		function setTextureCubeDynamic( texture, slot ) {
-
-			state.activeTexture( 33984 + slot );
-			state.bindTexture( 34067, properties.get( texture ).__webglTexture );
-
-		}
-
-		function setTextureParameters( textureType, texture, supportsMips ) {
-
-			var extension;
-
-			if ( supportsMips ) {
-
-				_gl.texParameteri( textureType, 10242, utils.convert( texture.wrapS ) );
-				_gl.texParameteri( textureType, 10243, utils.convert( texture.wrapT ) );
-
-				if ( textureType === 32879 || textureType === 35866 ) {
-
-					_gl.texParameteri( textureType, 32882, utils.convert( texture.wrapR ) );
-
-				}
-
-				_gl.texParameteri( textureType, 10240, utils.convert( texture.magFilter ) );
-				_gl.texParameteri( textureType, 10241, utils.convert( texture.minFilter ) );
-
-			} else {
-
-				_gl.texParameteri( textureType, 10242, 33071 );
-				_gl.texParameteri( textureType, 10243, 33071 );
-
-				if ( textureType === 32879 || textureType === 35866 ) {
-
-					_gl.texParameteri( textureType, 32882, 33071 );
-
-				}
-
-				if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {
-
-					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.' );
-
-				}
-
-				_gl.texParameteri( textureType, 10240, filterFallback( texture.magFilter ) );
-				_gl.texParameteri( textureType, 10241, filterFallback( texture.minFilter ) );
-
-				if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {
-
-					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.' );
-
-				}
-
-			}
-
-			extension = extensions.get( 'EXT_texture_filter_anisotropic' );
-
-			if ( extension ) {
-
-				if ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;
-				if ( texture.type === HalfFloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_half_float_linear' ) ) === null ) return;
-
-				if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {
-
-					_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );
-					properties.get( texture ).__currentAnisotropy = texture.anisotropy;
-
-				}
-
-			}
-
-		}
-
-		function initTexture( textureProperties, texture ) {
-
-			if ( textureProperties.__webglInit === undefined ) {
-
-				textureProperties.__webglInit = true;
-
-				texture.addEventListener( 'dispose', onTextureDispose );
-
-				textureProperties.__webglTexture = _gl.createTexture();
-
-				info.memory.textures ++;
-
-			}
-
-		}
-
-		function uploadTexture( textureProperties, texture, slot ) {
-
-			var textureType = 3553;
-
-			if ( texture.isDataTexture2DArray ) textureType = 35866;
-			if ( texture.isDataTexture3D ) textureType = 32879;
-
-			initTexture( textureProperties, texture );
-
-			state.activeTexture( 33984 + slot );
-			state.bindTexture( textureType, textureProperties.__webglTexture );
-
-			_gl.pixelStorei( 37440, texture.flipY );
-			_gl.pixelStorei( 37441, texture.premultiplyAlpha );
-			_gl.pixelStorei( 3317, texture.unpackAlignment );
-
-			var needsPowerOfTwo = textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( texture.image ) === false;
-			var image = resizeImage( texture.image, needsPowerOfTwo, false, capabilities.maxTextureSize );
-
-			var supportsMips = isPowerOfTwo( image ) || capabilities.isWebGL2,
-				glFormat = utils.convert( texture.format ),
-				glType = utils.convert( texture.type ),
-				glInternalFormat = getInternalFormat( glFormat, glType );
-
-			setTextureParameters( textureType, texture, supportsMips );
-
-			var mipmap, mipmaps = texture.mipmaps;
-
-			if ( texture.isDepthTexture ) {
-
-				// populate depth texture with dummy data
-
-				glInternalFormat = 6402;
-
-				if ( texture.type === FloatType ) {
-
-					if ( ! capabilities.isWebGL2 ) throw new Error( 'Float Depth Texture only supported in WebGL2.0' );
-					glInternalFormat = 36012;
-
-				} else if ( capabilities.isWebGL2 ) {
-
-					// WebGL 2.0 requires signed internalformat for glTexImage2D
-					glInternalFormat = 33189;
-
-				}
-
-				if ( texture.format === DepthFormat && glInternalFormat === 6402 ) {
-
-					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
-					// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
-					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
-					if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {
-
-						console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );
-
-						texture.type = UnsignedShortType;
-						glType = utils.convert( texture.type );
-
-					}
-
-				}
-
-				// Depth stencil textures need the DEPTH_STENCIL internal format
-				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
-				if ( texture.format === DepthStencilFormat ) {
-
-					glInternalFormat = 34041;
-
-					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
-					// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
-					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
-					if ( texture.type !== UnsignedInt248Type ) {
-
-						console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );
-
-						texture.type = UnsignedInt248Type;
-						glType = utils.convert( texture.type );
-
-					}
-
-				}
-
-				state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null );
-
-			} else if ( texture.isDataTexture ) {
-
-				// use manually created mipmaps if available
-				// if there are no manual mipmaps
-				// set 0 level mipmap and then use GL to generate other mipmap levels
-
-				if ( mipmaps.length > 0 && supportsMips ) {
-
-					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
-
-						mipmap = mipmaps[ i ];
-						state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
-
-					}
-
-					texture.generateMipmaps = false;
-					textureProperties.__maxMipLevel = mipmaps.length - 1;
-
-				} else {
-
-					state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data );
-					textureProperties.__maxMipLevel = 0;
-
-				}
-
-			} else if ( texture.isCompressedTexture ) {
-
-				for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
-
-					mipmap = mipmaps[ i ];
-
-					if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {
-
-						if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {
-
-							state.compressedTexImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data );
-
-						} else {
-
-							console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );
-
-						}
-
-					} else {
-
-						state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
-
-					}
-
-				}
-
-				textureProperties.__maxMipLevel = mipmaps.length - 1;
-
-			} else if ( texture.isDataTexture2DArray ) {
-
-				state.texImage3D( 35866, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data );
-				textureProperties.__maxMipLevel = 0;
-
-			} else if ( texture.isDataTexture3D ) {
-
-				state.texImage3D( 32879, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data );
-				textureProperties.__maxMipLevel = 0;
-
-			} else {
-
-				// regular Texture (image, video, canvas)
-
-				// use manually created mipmaps if available
-				// if there are no manual mipmaps
-				// set 0 level mipmap and then use GL to generate other mipmap levels
-
-				if ( mipmaps.length > 0 && supportsMips ) {
-
-					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
-
-						mipmap = mipmaps[ i ];
-						state.texImage2D( 3553, i, glInternalFormat, glFormat, glType, mipmap );
-
-					}
-
-					texture.generateMipmaps = false;
-					textureProperties.__maxMipLevel = mipmaps.length - 1;
-
-				} else {
-
-					state.texImage2D( 3553, 0, glInternalFormat, glFormat, glType, image );
-					textureProperties.__maxMipLevel = 0;
-
-				}
-
-			}
-
-			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {
-
-				generateMipmap( 3553, texture, image.width, image.height );
-
-			}
-
-			textureProperties.__version = texture.version;
-
-			if ( texture.onUpdate ) texture.onUpdate( texture );
-
-		}
-
-		// Render targets
-
-		// Setup storage for target texture and bind it to correct framebuffer
-		function setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) {
-
-			var glFormat = utils.convert( renderTarget.texture.format );
-			var glType = utils.convert( renderTarget.texture.type );
-			var glInternalFormat = getInternalFormat( glFormat, glType );
-			state.texImage2D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );
-			_gl.bindFramebuffer( 36160, framebuffer );
-			_gl.framebufferTexture2D( 36160, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );
-			_gl.bindFramebuffer( 36160, null );
-
-		}
-
-		// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
-		function setupRenderBufferStorage( renderbuffer, renderTarget, isMultisample ) {
-
-			_gl.bindRenderbuffer( 36161, renderbuffer );
-
-			if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {
-
-				if ( isMultisample ) {
-
-					var samples = getRenderTargetSamples( renderTarget );
-
-					_gl.renderbufferStorageMultisample( 36161, samples, 33189, renderTarget.width, renderTarget.height );
-
-				} else {
-
-					_gl.renderbufferStorage( 36161, 33189, renderTarget.width, renderTarget.height );
-
-				}
-
-				_gl.framebufferRenderbuffer( 36160, 36096, 36161, renderbuffer );
-
-			} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {
-
-				if ( isMultisample ) {
-
-					var samples = getRenderTargetSamples( renderTarget );
-
-					_gl.renderbufferStorageMultisample( 36161, samples, 34041, renderTarget.width, renderTarget.height );
-
-				} else {
-
-					_gl.renderbufferStorage( 36161, 34041, renderTarget.width, renderTarget.height );
-
-				}
-
-
-				_gl.framebufferRenderbuffer( 36160, 33306, 36161, renderbuffer );
-
-			} else {
-
-				var glFormat = utils.convert( renderTarget.texture.format );
-				var glType = utils.convert( renderTarget.texture.type );
-				var glInternalFormat = getInternalFormat( glFormat, glType );
-
-				if ( isMultisample ) {
-
-					var samples = getRenderTargetSamples( renderTarget );
-
-					_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );
-
-				} else {
-
-					_gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height );
-
-				}
-
-			}
-
-			_gl.bindRenderbuffer( 36161, null );
-
-		}
-
-		// Setup resources for a Depth Texture for a FBO (needs an extension)
-		function setupDepthTexture( framebuffer, renderTarget ) {
-
-			var isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );
-			if ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' );
-
-			_gl.bindFramebuffer( 36160, framebuffer );
-
-			if ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {
-
-				throw new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' );
-
-			}
-
-			// upload an empty depth texture with framebuffer size
-			if ( ! properties.get( renderTarget.depthTexture ).__webglTexture ||
-					renderTarget.depthTexture.image.width !== renderTarget.width ||
-					renderTarget.depthTexture.image.height !== renderTarget.height ) {
-
-				renderTarget.depthTexture.image.width = renderTarget.width;
-				renderTarget.depthTexture.image.height = renderTarget.height;
-				renderTarget.depthTexture.needsUpdate = true;
-
-			}
-
-			setTexture2D( renderTarget.depthTexture, 0 );
-
-			var webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;
-
-			if ( renderTarget.depthTexture.format === DepthFormat ) {
-
-				_gl.framebufferTexture2D( 36160, 36096, 3553, webglDepthTexture, 0 );
-
-			} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {
-
-				_gl.framebufferTexture2D( 36160, 33306, 3553, webglDepthTexture, 0 );
-
-			} else {
-
-				throw new Error( 'Unknown depthTexture format' );
-
-			}
-
-		}
-
-		// Setup GL resources for a non-texture depth buffer
-		function setupDepthRenderbuffer( renderTarget ) {
-
-			var renderTargetProperties = properties.get( renderTarget );
-
-			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
-
-			if ( renderTarget.depthTexture ) {
-
-				if ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' );
-
-				setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );
-
-			} else {
-
-				if ( isCube ) {
-
-					renderTargetProperties.__webglDepthbuffer = [];
-
-					for ( var i = 0; i < 6; i ++ ) {
-
-						_gl.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer[ i ] );
-						renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();
-						setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );
-
-					}
-
-				} else {
-
-					_gl.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer );
-					renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
-					setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );
-
-				}
-
-			}
-
-			_gl.bindFramebuffer( 36160, null );
-
-		}
-
-		// Set up GL resources for the render target
-		function setupRenderTarget( renderTarget ) {
-
-			var renderTargetProperties = properties.get( renderTarget );
-			var textureProperties = properties.get( renderTarget.texture );
-
-			renderTarget.addEventListener( 'dispose', onRenderTargetDispose );
-
-			textureProperties.__webglTexture = _gl.createTexture();
-
-			info.memory.textures ++;
-
-			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
-			var isMultisample = ( renderTarget.isWebGLMultisampleRenderTarget === true );
-			var supportsMips = isPowerOfTwo( renderTarget ) || capabilities.isWebGL2;
-
-			// Setup framebuffer
-
-			if ( isCube ) {
-
-				renderTargetProperties.__webglFramebuffer = [];
-
-				for ( var i = 0; i < 6; i ++ ) {
-
-					renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();
-
-				}
-
-			} else {
-
-				renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();
-
-				if ( isMultisample ) {
-
-					if ( capabilities.isWebGL2 ) {
-
-						renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer();
-						renderTargetProperties.__webglColorRenderbuffer = _gl.createRenderbuffer();
-
-						_gl.bindRenderbuffer( 36161, renderTargetProperties.__webglColorRenderbuffer );
-						var glFormat = utils.convert( renderTarget.texture.format );
-						var glType = utils.convert( renderTarget.texture.type );
-						var glInternalFormat = getInternalFormat( glFormat, glType );
-						var samples = getRenderTargetSamples( renderTarget );
-						_gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height );
-
-						_gl.bindFramebuffer( 36160, renderTargetProperties.__webglMultisampledFramebuffer );
-						_gl.framebufferRenderbuffer( 36160, 36064, 36161, renderTargetProperties.__webglColorRenderbuffer );
-						_gl.bindRenderbuffer( 36161, null );
-
-						if ( renderTarget.depthBuffer ) {
-
-							renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer();
-							setupRenderBufferStorage( renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true );
-
-						}
-
-						_gl.bindFramebuffer( 36160, null );
-
-
-					} else {
-
-						console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' );
-
-					}
-
-				}
-
-			}
-
-			// Setup color buffer
-
-			if ( isCube ) {
-
-				state.bindTexture( 34067, textureProperties.__webglTexture );
-				setTextureParameters( 34067, renderTarget.texture, supportsMips );
-
-				for ( var i = 0; i < 6; i ++ ) {
-
-					setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, 36064, 34069 + i );
-
-				}
-
-				if ( textureNeedsGenerateMipmaps( renderTarget.texture, supportsMips ) ) {
-
-					generateMipmap( 34067, renderTarget.texture, renderTarget.width, renderTarget.height );
-
-				}
-
-				state.bindTexture( 34067, null );
-
-			} else {
-
-				state.bindTexture( 3553, textureProperties.__webglTexture );
-				setTextureParameters( 3553, renderTarget.texture, supportsMips );
-				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, 36064, 3553 );
-
-				if ( textureNeedsGenerateMipmaps( renderTarget.texture, supportsMips ) ) {
-
-					generateMipmap( 3553, renderTarget.texture, renderTarget.width, renderTarget.height );
-
-				}
-
-				state.bindTexture( 3553, null );
-
-			}
-
-			// Setup depth and stencil buffers
-
-			if ( renderTarget.depthBuffer ) {
-
-				setupDepthRenderbuffer( renderTarget );
-
-			}
-
-		}
-
-		function updateRenderTargetMipmap( renderTarget ) {
-
-			var texture = renderTarget.texture;
-			var supportsMips = isPowerOfTwo( renderTarget ) || capabilities.isWebGL2;
-
-			if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) {
-
-				var target = renderTarget.isWebGLRenderTargetCube ? 34067 : 3553;
-				var webglTexture = properties.get( texture ).__webglTexture;
-
-				state.bindTexture( target, webglTexture );
-				generateMipmap( target, texture, renderTarget.width, renderTarget.height );
-				state.bindTexture( target, null );
-
-			}
-
-		}
-
-		function updateMultisampleRenderTarget( renderTarget ) {
-
-			if ( renderTarget.isWebGLMultisampleRenderTarget ) {
-
-				if ( capabilities.isWebGL2 ) {
-
-					var renderTargetProperties = properties.get( renderTarget );
-
-					_gl.bindFramebuffer( 36008, renderTargetProperties.__webglMultisampledFramebuffer );
-					_gl.bindFramebuffer( 36009, renderTargetProperties.__webglFramebuffer );
-
-					var width = renderTarget.width;
-					var height = renderTarget.height;
-					var mask = 16384;
-
-					if ( renderTarget.depthBuffer ) mask |= 256;
-					if ( renderTarget.stencilBuffer ) mask |= 1024;
-
-					_gl.blitFramebuffer( 0, 0, width, height, 0, 0, width, height, mask, 9728 );
-
-				} else {
-
-					console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' );
-
-				}
-
-			}
-
-		}
-
-		function getRenderTargetSamples( renderTarget ) {
-
-			return ( capabilities.isWebGL2 && renderTarget.isWebGLMultisampleRenderTarget ) ?
-				Math.min( capabilities.maxSamples, renderTarget.samples ) : 0;
-
-		}
-
-		function updateVideoTexture( texture ) {
-
-			var id = texture.id;
-			var frame = info.render.frame;
-
-			// Check the last frame we updated the VideoTexture
-
-			if ( _videoTextures[ id ] !== frame ) {
-
-				_videoTextures[ id ] = frame;
-				texture.update();
-
-			}
-
-		}
-
-		// backwards compatibility
-
-		var warnedTexture2D = false;
-		var warnedTextureCube = false;
-
-		function safeSetTexture2D( texture, slot ) {
-
-			if ( texture && texture.isWebGLRenderTarget ) {
-
-				if ( warnedTexture2D === false ) {
-
-					console.warn( "THREE.WebGLTextures.safeSetTexture2D: don't use render targets as textures. Use their .texture property instead." );
-					warnedTexture2D = true;
-
-				}
-
-				texture = texture.texture;
-
-			}
-
-			setTexture2D( texture, slot );
-
-		}
-
-		function safeSetTextureCube( texture, slot ) {
-
-			if ( texture && texture.isWebGLRenderTargetCube ) {
-
-				if ( warnedTextureCube === false ) {
-
-					console.warn( "THREE.WebGLTextures.safeSetTextureCube: don't use cube render targets as textures. Use their .texture property instead." );
-					warnedTextureCube = true;
-
-				}
-
-				texture = texture.texture;
-
-			}
-
-			// currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture
-			// TODO: unify these code paths
-			if ( ( texture && texture.isCubeTexture ) ||
-				( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {
-
-				// CompressedTexture can have Array in image :/
-
-				// this function alone should take care of cube textures
-				setTextureCube( texture, slot );
-
-			} else {
-
-				// assumed: texture property of THREE.WebGLRenderTargetCube
-				setTextureCubeDynamic( texture, slot );
-
-			}
-
-		}
-
-		//
-
-		this.allocateTextureUnit = allocateTextureUnit;
-		this.resetTextureUnits = resetTextureUnits;
-
-		this.setTexture2D = setTexture2D;
-		this.setTexture2DArray = setTexture2DArray;
-		this.setTexture3D = setTexture3D;
-		this.setTextureCube = setTextureCube;
-		this.setTextureCubeDynamic = setTextureCubeDynamic;
-		this.setupRenderTarget = setupRenderTarget;
-		this.updateRenderTargetMipmap = updateRenderTargetMipmap;
-		this.updateMultisampleRenderTarget = updateMultisampleRenderTarget;
-
-		this.safeSetTexture2D = safeSetTexture2D;
-		this.safeSetTextureCube = safeSetTextureCube;
-
-	}
-
-	/**
-	 * @author thespite / http://www.twitter.com/thespite
-	 */
-
-	function WebGLUtils( gl, extensions, capabilities ) {
-
-		function convert( p ) {
-
-			var extension;
-
-			if ( p === RepeatWrapping ) return 10497;
-			if ( p === ClampToEdgeWrapping ) return 33071;
-			if ( p === MirroredRepeatWrapping ) return 33648;
-
-			if ( p === NearestFilter ) return 9728;
-			if ( p === NearestMipMapNearestFilter ) return 9984;
-			if ( p === NearestMipMapLinearFilter ) return 9986;
-
-			if ( p === LinearFilter ) return 9729;
-			if ( p === LinearMipMapNearestFilter ) return 9985;
-			if ( p === LinearMipMapLinearFilter ) return 9987;
-
-			if ( p === UnsignedByteType ) return 5121;
-			if ( p === UnsignedShort4444Type ) return 32819;
-			if ( p === UnsignedShort5551Type ) return 32820;
-			if ( p === UnsignedShort565Type ) return 33635;
-
-			if ( p === ByteType ) return 5120;
-			if ( p === ShortType ) return 5122;
-			if ( p === UnsignedShortType ) return 5123;
-			if ( p === IntType ) return 5124;
-			if ( p === UnsignedIntType ) return 5125;
-			if ( p === FloatType ) return 5126;
-
-			if ( p === HalfFloatType ) {
-
-				if ( capabilities.isWebGL2 ) return 5131;
-
-				extension = extensions.get( 'OES_texture_half_float' );
-
-				if ( extension !== null ) return extension.HALF_FLOAT_OES;
-
-			}
-
-			if ( p === AlphaFormat ) return 6406;
-			if ( p === RGBFormat ) return 6407;
-			if ( p === RGBAFormat ) return 6408;
-			if ( p === LuminanceFormat ) return 6409;
-			if ( p === LuminanceAlphaFormat ) return 6410;
-			if ( p === DepthFormat ) return 6402;
-			if ( p === DepthStencilFormat ) return 34041;
-			if ( p === RedFormat ) return 6403;
-
-			if ( p === AddEquation ) return 32774;
-			if ( p === SubtractEquation ) return 32778;
-			if ( p === ReverseSubtractEquation ) return 32779;
-
-			if ( p === ZeroFactor ) return 0;
-			if ( p === OneFactor ) return 1;
-			if ( p === SrcColorFactor ) return 768;
-			if ( p === OneMinusSrcColorFactor ) return 769;
-			if ( p === SrcAlphaFactor ) return 770;
-			if ( p === OneMinusSrcAlphaFactor ) return 771;
-			if ( p === DstAlphaFactor ) return 772;
-			if ( p === OneMinusDstAlphaFactor ) return 773;
-
-			if ( p === DstColorFactor ) return 774;
-			if ( p === OneMinusDstColorFactor ) return 775;
-			if ( p === SrcAlphaSaturateFactor ) return 776;
-
-			if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format ||
-				p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {
-
-				extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );
-
-				if ( extension !== null ) {
-
-					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
-					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
-					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
-					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
-
-				}
-
-			}
-
-			if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format ||
-				p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {
-
-				extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );
-
-				if ( extension !== null ) {
-
-					if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
-					if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
-					if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
-					if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
-
-				}
-
-			}
-
-			if ( p === RGB_ETC1_Format ) {
-
-				extension = extensions.get( 'WEBGL_compressed_texture_etc1' );
-
-				if ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL;
-
-			}
-
-			if ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format ||
-				p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format ||
-				p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format ||
-				p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format ||
-				p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format ) {
-
-				extension = extensions.get( 'WEBGL_compressed_texture_astc' );
-
-				if ( extension !== null ) {
-
-					return p;
-
-				}
-
-			}
-
-			if ( p === MinEquation || p === MaxEquation ) {
-
-				if ( capabilities.isWebGL2 ) {
-
-					if ( p === MinEquation ) return 32775;
-					if ( p === MaxEquation ) return 32776;
-
-				}
-
-				extension = extensions.get( 'EXT_blend_minmax' );
-
-				if ( extension !== null ) {
-
-					if ( p === MinEquation ) return extension.MIN_EXT;
-					if ( p === MaxEquation ) return extension.MAX_EXT;
-
-				}
-
-			}
-
-			if ( p === UnsignedInt248Type ) {
-
-				if ( capabilities.isWebGL2 ) return 34042;
-
-				extension = extensions.get( 'WEBGL_depth_texture' );
-
-				if ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL;
-
-			}
-
-			return 0;
-
-		}
-
-		return { convert: convert };
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Group() {
-
-		Object3D.call( this );
-
-		this.type = 'Group';
-
-	}
-
-	Group.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Group,
-
-		isGroup: true
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author WestLangley / http://github.com/WestLangley
-	*/
-
-	function Camera() {
-
-		Object3D.call( this );
-
-		this.type = 'Camera';
-
-		this.matrixWorldInverse = new Matrix4();
-
-		this.projectionMatrix = new Matrix4();
-		this.projectionMatrixInverse = new Matrix4();
-
-	}
-
-	Camera.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Camera,
-
-		isCamera: true,
-
-		copy: function ( source, recursive ) {
-
-			Object3D.prototype.copy.call( this, source, recursive );
-
-			this.matrixWorldInverse.copy( source.matrixWorldInverse );
-
-			this.projectionMatrix.copy( source.projectionMatrix );
-			this.projectionMatrixInverse.copy( source.projectionMatrixInverse );
-
-			return this;
-
-		},
-
-		getWorldDirection: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Camera: .getWorldDirection() target is now required' );
-				target = new Vector3();
-
-			}
-
-			this.updateMatrixWorld( true );
-
-			var e = this.matrixWorld.elements;
-
-			return target.set( - e[ 8 ], - e[ 9 ], - e[ 10 ] ).normalize();
-
-		},
-
-		updateMatrixWorld: function ( force ) {
-
-			Object3D.prototype.updateMatrixWorld.call( this, force );
-
-			this.matrixWorldInverse.getInverse( this.matrixWorld );
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author greggman / http://games.greggman.com/
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * @author tschw
-	 */
-
-	function PerspectiveCamera( fov, aspect, near, far ) {
-
-		Camera.call( this );
-
-		this.type = 'PerspectiveCamera';
-
-		this.fov = fov !== undefined ? fov : 50;
-		this.zoom = 1;
-
-		this.near = near !== undefined ? near : 0.1;
-		this.far = far !== undefined ? far : 2000;
-		this.focus = 10;
-
-		this.aspect = aspect !== undefined ? aspect : 1;
-		this.view = null;
-
-		this.filmGauge = 35;	// width of the film (default in millimeters)
-		this.filmOffset = 0;	// horizontal film offset (same unit as gauge)
-
-		this.updateProjectionMatrix();
-
-	}
-
-	PerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), {
-
-		constructor: PerspectiveCamera,
-
-		isPerspectiveCamera: true,
-
-		copy: function ( source, recursive ) {
-
-			Camera.prototype.copy.call( this, source, recursive );
-
-			this.fov = source.fov;
-			this.zoom = source.zoom;
-
-			this.near = source.near;
-			this.far = source.far;
-			this.focus = source.focus;
-
-			this.aspect = source.aspect;
-			this.view = source.view === null ? null : Object.assign( {}, source.view );
-
-			this.filmGauge = source.filmGauge;
-			this.filmOffset = source.filmOffset;
-
-			return this;
-
-		},
-
-		/**
-		 * Sets the FOV by focal length in respect to the current .filmGauge.
-		 *
-		 * The default film gauge is 35, so that the focal length can be specified for
-		 * a 35mm (full frame) camera.
-		 *
-		 * Values for focal length and film gauge must have the same unit.
-		 */
-		setFocalLength: function ( focalLength ) {
-
-			// see http://www.bobatkins.com/photography/technical/field_of_view.html
-			var vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;
-
-			this.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope );
-			this.updateProjectionMatrix();
-
-		},
-
-		/**
-		 * Calculates the focal length from the current .fov and .filmGauge.
-		 */
-		getFocalLength: function () {
-
-			var vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov );
-
-			return 0.5 * this.getFilmHeight() / vExtentSlope;
-
-		},
-
-		getEffectiveFOV: function () {
-
-			return _Math.RAD2DEG * 2 * Math.atan(
-				Math.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom );
-
-		},
-
-		getFilmWidth: function () {
-
-			// film not completely covered in portrait format (aspect < 1)
-			return this.filmGauge * Math.min( this.aspect, 1 );
-
-		},
-
-		getFilmHeight: function () {
-
-			// film not completely covered in landscape format (aspect > 1)
-			return this.filmGauge / Math.max( this.aspect, 1 );
-
-		},
-
-		/**
-		 * Sets an offset in a larger frustum. This is useful for multi-window or
-		 * multi-monitor/multi-machine setups.
-		 *
-		 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
-		 * the monitors are in grid like this
-		 *
-		 *   +---+---+---+
-		 *   | A | B | C |
-		 *   +---+---+---+
-		 *   | D | E | F |
-		 *   +---+---+---+
-		 *
-		 * then for each monitor you would call it like this
-		 *
-		 *   var w = 1920;
-		 *   var h = 1080;
-		 *   var fullWidth = w * 3;
-		 *   var fullHeight = h * 2;
-		 *
-		 *   --A--
-		 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
-		 *   --B--
-		 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
-		 *   --C--
-		 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
-		 *   --D--
-		 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
-		 *   --E--
-		 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
-		 *   --F--
-		 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
-		 *
-		 *   Note there is no reason monitors have to be the same size or in a grid.
-		 */
-		setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {
-
-			this.aspect = fullWidth / fullHeight;
-
-			if ( this.view === null ) {
-
-				this.view = {
-					enabled: true,
-					fullWidth: 1,
-					fullHeight: 1,
-					offsetX: 0,
-					offsetY: 0,
-					width: 1,
-					height: 1
-				};
-
-			}
-
-			this.view.enabled = true;
-			this.view.fullWidth = fullWidth;
-			this.view.fullHeight = fullHeight;
-			this.view.offsetX = x;
-			this.view.offsetY = y;
-			this.view.width = width;
-			this.view.height = height;
-
-			this.updateProjectionMatrix();
-
-		},
-
-		clearViewOffset: function () {
-
-			if ( this.view !== null ) {
-
-				this.view.enabled = false;
-
-			}
-
-			this.updateProjectionMatrix();
-
-		},
-
-		updateProjectionMatrix: function () {
-
-			var near = this.near,
-				top = near * Math.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom,
-				height = 2 * top,
-				width = this.aspect * height,
-				left = - 0.5 * width,
-				view = this.view;
-
-			if ( this.view !== null && this.view.enabled ) {
-
-				var fullWidth = view.fullWidth,
-					fullHeight = view.fullHeight;
-
-				left += view.offsetX * width / fullWidth;
-				top -= view.offsetY * height / fullHeight;
-				width *= view.width / fullWidth;
-				height *= view.height / fullHeight;
-
-			}
-
-			var skew = this.filmOffset;
-			if ( skew !== 0 ) left += near * skew / this.getFilmWidth();
-
-			this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );
-
-			this.projectionMatrixInverse.getInverse( this.projectionMatrix );
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			data.object.fov = this.fov;
-			data.object.zoom = this.zoom;
-
-			data.object.near = this.near;
-			data.object.far = this.far;
-			data.object.focus = this.focus;
-
-			data.object.aspect = this.aspect;
-
-			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );
-
-			data.object.filmGauge = this.filmGauge;
-			data.object.filmOffset = this.filmOffset;
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function ArrayCamera( array ) {
-
-		PerspectiveCamera.call( this );
-
-		this.cameras = array || [];
-
-	}
-
-	ArrayCamera.prototype = Object.assign( Object.create( PerspectiveCamera.prototype ), {
-
-		constructor: ArrayCamera,
-
-		isArrayCamera: true
-
-	} );
-
-	/**
-	 * @author jsantell / https://www.jsantell.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var cameraLPos = new Vector3();
-	var cameraRPos = new Vector3();
-
-	/**
-	 * Assumes 2 cameras that are parallel and share an X-axis, and that
-	 * the cameras' projection and world matrices have already been set.
-	 * And that near and far planes are identical for both cameras.
-	 * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765
-	 */
-	function setProjectionFromUnion( camera, cameraL, cameraR ) {
-
-		cameraLPos.setFromMatrixPosition( cameraL.matrixWorld );
-		cameraRPos.setFromMatrixPosition( cameraR.matrixWorld );
-
-		var ipd = cameraLPos.distanceTo( cameraRPos );
-
-		var projL = cameraL.projectionMatrix.elements;
-		var projR = cameraR.projectionMatrix.elements;
-
-		// VR systems will have identical far and near planes, and
-		// most likely identical top and bottom frustum extents.
-		// Use the left camera for these values.
-		var near = projL[ 14 ] / ( projL[ 10 ] - 1 );
-		var far = projL[ 14 ] / ( projL[ 10 ] + 1 );
-		var topFov = ( projL[ 9 ] + 1 ) / projL[ 5 ];
-		var bottomFov = ( projL[ 9 ] - 1 ) / projL[ 5 ];
-
-		var leftFov = ( projL[ 8 ] - 1 ) / projL[ 0 ];
-		var rightFov = ( projR[ 8 ] + 1 ) / projR[ 0 ];
-		var left = near * leftFov;
-		var right = near * rightFov;
-
-		// Calculate the new camera's position offset from the
-		// left camera. xOffset should be roughly half `ipd`.
-		var zOffset = ipd / ( - leftFov + rightFov );
-		var xOffset = zOffset * - leftFov;
-
-		// TODO: Better way to apply this offset?
-		cameraL.matrixWorld.decompose( camera.position, camera.quaternion, camera.scale );
-		camera.translateX( xOffset );
-		camera.translateZ( zOffset );
-		camera.matrixWorld.compose( camera.position, camera.quaternion, camera.scale );
-		camera.matrixWorldInverse.getInverse( camera.matrixWorld );
-
-		// Find the union of the frustum values of the cameras and scale
-		// the values so that the near plane's position does not change in world space,
-		// although must now be relative to the new union camera.
-		var near2 = near + zOffset;
-		var far2 = far + zOffset;
-		var left2 = left - xOffset;
-		var right2 = right + ( ipd - xOffset );
-		var top2 = topFov * far / far2 * near2;
-		var bottom2 = bottomFov * far / far2 * near2;
-
-		camera.projectionMatrix.makePerspective( left2, right2, top2, bottom2, near2, far2 );
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebVRManager( renderer ) {
-
-		var renderWidth, renderHeight;
-		var scope = this;
-
-		var device = null;
-		var frameData = null;
-
-		var poseTarget = null;
-
-		var controllers = [];
-		var standingMatrix = new Matrix4();
-		var standingMatrixInverse = new Matrix4();
-
-		var framebufferScaleFactor = 1.0;
-
-		var referenceSpaceType = 'local-floor';
-
-		if ( typeof window !== 'undefined' && 'VRFrameData' in window ) {
-
-			frameData = new window.VRFrameData();
-			window.addEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );
-
-		}
-
-		var matrixWorldInverse = new Matrix4();
-		var tempQuaternion = new Quaternion();
-		var tempPosition = new Vector3();
-
-		var cameraL = new PerspectiveCamera();
-		cameraL.viewport = new Vector4();
-		cameraL.layers.enable( 1 );
-
-		var cameraR = new PerspectiveCamera();
-		cameraR.viewport = new Vector4();
-		cameraR.layers.enable( 2 );
-
-		var cameraVR = new ArrayCamera( [ cameraL, cameraR ] );
-		cameraVR.layers.enable( 1 );
-		cameraVR.layers.enable( 2 );
-
-		//
-
-		function isPresenting() {
-
-			return device !== null && device.isPresenting === true;
-
-		}
-
-		var currentSize = new Vector2(), currentPixelRatio;
-
-		function onVRDisplayPresentChange() {
-
-			if ( isPresenting() ) {
-
-				var eyeParameters = device.getEyeParameters( 'left' );
-				renderWidth = 2 * eyeParameters.renderWidth * framebufferScaleFactor;
-				renderHeight = eyeParameters.renderHeight * framebufferScaleFactor;
-
-				currentPixelRatio = renderer.getPixelRatio();
-				renderer.getSize( currentSize );
-
-				renderer.setDrawingBufferSize( renderWidth, renderHeight, 1 );
-
-				cameraL.viewport.set( 0, 0, renderWidth / 2, renderHeight );
-				cameraR.viewport.set( renderWidth / 2, 0, renderWidth / 2, renderHeight );
-
-				animation.start();
-
-			} else {
-
-				if ( scope.enabled ) {
-
-					renderer.setDrawingBufferSize( currentSize.width, currentSize.height, currentPixelRatio );
-
-				}
-
-				animation.stop();
-
-			}
-
-		}
-
-		//
-
-		var triggers = [];
-
-		function findGamepad( id ) {
-
-			var gamepads = navigator.getGamepads && navigator.getGamepads();
-
-			for ( var i = 0, j = 0, l = gamepads.length; i < l; i ++ ) {
-
-				var gamepad = gamepads[ i ];
-
-				if ( gamepad && ( gamepad.id === 'Daydream Controller' ||
-					gamepad.id === 'Gear VR Controller' || gamepad.id === 'Oculus Go Controller' ||
-					gamepad.id === 'OpenVR Gamepad' || gamepad.id.startsWith( 'Oculus Touch' ) ||
-					gamepad.id.startsWith( 'Spatial Controller' ) ) ) {
-
-					if ( j === id ) return gamepad;
-
-					j ++;
-
-				}
-
-			}
-
-		}
-
-		function updateControllers() {
-
-			for ( var i = 0; i < controllers.length; i ++ ) {
-
-				var controller = controllers[ i ];
-
-				var gamepad = findGamepad( i );
-
-				if ( gamepad !== undefined && gamepad.pose !== undefined ) {
-
-					if ( gamepad.pose === null ) return;
-
-					// Pose
-
-					var pose = gamepad.pose;
-
-					if ( pose.hasPosition === false ) controller.position.set( 0.2, - 0.6, - 0.05 );
-
-					if ( pose.position !== null ) controller.position.fromArray( pose.position );
-					if ( pose.orientation !== null ) controller.quaternion.fromArray( pose.orientation );
-					controller.matrix.compose( controller.position, controller.quaternion, controller.scale );
-					controller.matrix.premultiply( standingMatrix );
-					controller.matrix.decompose( controller.position, controller.quaternion, controller.scale );
-					controller.matrixWorldNeedsUpdate = true;
-					controller.visible = true;
-
-					// Trigger
-
-					var buttonId = gamepad.id === 'Daydream Controller' ? 0 : 1;
-
-					if ( triggers[ i ] === undefined ) triggers[ i ] = false;
-
-					if ( triggers[ i ] !== gamepad.buttons[ buttonId ].pressed ) {
-
-						triggers[ i ] = gamepad.buttons[ buttonId ].pressed;
-
-						if ( triggers[ i ] === true ) {
-
-							controller.dispatchEvent( { type: 'selectstart' } );
-
-						} else {
-
-							controller.dispatchEvent( { type: 'selectend' } );
-							controller.dispatchEvent( { type: 'select' } );
-
-						}
-
-					}
-
-				} else {
-
-					controller.visible = false;
-
-				}
-
-			}
-
-		}
-
-		function updateViewportFromBounds( viewport, bounds ) {
-
-			if ( bounds !== null && bounds.length === 4 ) {
-
-				viewport.set( bounds[ 0 ] * renderWidth, bounds[ 1 ] * renderHeight, bounds[ 2 ] * renderWidth, bounds[ 3 ] * renderHeight );
-
-			}
-
-		}
-
-		//
-
-		this.enabled = false;
-
-		this.getController = function ( id ) {
-
-			var controller = controllers[ id ];
-
-			if ( controller === undefined ) {
-
-				controller = new Group();
-				controller.matrixAutoUpdate = false;
-				controller.visible = false;
-
-				controllers[ id ] = controller;
-
-			}
-
-			return controller;
-
-		};
-
-		this.getDevice = function () {
-
-			return device;
-
-		};
-
-		this.setDevice = function ( value ) {
-
-			if ( value !== undefined ) device = value;
-
-			animation.setContext( value );
-
-		};
-
-		this.setFramebufferScaleFactor = function ( value ) {
-
-			framebufferScaleFactor = value;
-
-		};
-
-		this.setReferenceSpaceType = function ( value ) {
-
-			referenceSpaceType = value;
-
-		};
-
-		this.setPoseTarget = function ( object ) {
-
-			if ( object !== undefined ) poseTarget = object;
-
-		};
-
-		this.getCamera = function ( camera ) {
-
-			var userHeight = referenceSpaceType === 'local-floor' ? 1.6 : 0;
-
-			if ( isPresenting() === false ) {
-
-				camera.position.set( 0, userHeight, 0 );
-				camera.rotation.set( 0, 0, 0 );
-
-				return camera;
-
-			}
-
-			device.depthNear = camera.near;
-			device.depthFar = camera.far;
-
-			device.getFrameData( frameData );
-
-			//
-
-			if ( referenceSpaceType === 'local-floor' ) {
-
-				var stageParameters = device.stageParameters;
-
-				if ( stageParameters ) {
-
-					standingMatrix.fromArray( stageParameters.sittingToStandingTransform );
-
-				} else {
-
-					standingMatrix.makeTranslation( 0, userHeight, 0 );
-
-				}
-
-			}
-
-
-			var pose = frameData.pose;
-			var poseObject = poseTarget !== null ? poseTarget : camera;
-
-			// We want to manipulate poseObject by its position and quaternion components since users may rely on them.
-			poseObject.matrix.copy( standingMatrix );
-			poseObject.matrix.decompose( poseObject.position, poseObject.quaternion, poseObject.scale );
-
-			if ( pose.orientation !== null ) {
-
-				tempQuaternion.fromArray( pose.orientation );
-				poseObject.quaternion.multiply( tempQuaternion );
-
-			}
-
-			if ( pose.position !== null ) {
-
-				tempQuaternion.setFromRotationMatrix( standingMatrix );
-				tempPosition.fromArray( pose.position );
-				tempPosition.applyQuaternion( tempQuaternion );
-				poseObject.position.add( tempPosition );
-
-			}
-
-			poseObject.updateMatrixWorld();
-
-			//
-
-			cameraL.near = camera.near;
-			cameraR.near = camera.near;
-
-			cameraL.far = camera.far;
-			cameraR.far = camera.far;
-
-			cameraL.matrixWorldInverse.fromArray( frameData.leftViewMatrix );
-			cameraR.matrixWorldInverse.fromArray( frameData.rightViewMatrix );
-
-			// TODO (mrdoob) Double check this code
-
-			standingMatrixInverse.getInverse( standingMatrix );
-
-			if ( referenceSpaceType === 'local-floor' ) {
-
-				cameraL.matrixWorldInverse.multiply( standingMatrixInverse );
-				cameraR.matrixWorldInverse.multiply( standingMatrixInverse );
-
-			}
-
-			var parent = poseObject.parent;
-
-			if ( parent !== null ) {
-
-				matrixWorldInverse.getInverse( parent.matrixWorld );
-
-				cameraL.matrixWorldInverse.multiply( matrixWorldInverse );
-				cameraR.matrixWorldInverse.multiply( matrixWorldInverse );
-
-			}
-
-			// envMap and Mirror needs camera.matrixWorld
-
-			cameraL.matrixWorld.getInverse( cameraL.matrixWorldInverse );
-			cameraR.matrixWorld.getInverse( cameraR.matrixWorldInverse );
-
-			cameraL.projectionMatrix.fromArray( frameData.leftProjectionMatrix );
-			cameraR.projectionMatrix.fromArray( frameData.rightProjectionMatrix );
-
-			setProjectionFromUnion( cameraVR, cameraL, cameraR );
-
-			//
-
-			var layers = device.getLayers();
-
-			if ( layers.length ) {
-
-				var layer = layers[ 0 ];
-
-				updateViewportFromBounds( cameraL.viewport, layer.leftBounds );
-				updateViewportFromBounds( cameraR.viewport, layer.rightBounds );
-
-			}
-
-			updateControllers();
-
-			return cameraVR;
-
-		};
-
-		this.getStandingMatrix = function () {
-
-			return standingMatrix;
-
-		};
-
-		this.isPresenting = isPresenting;
-
-		// Animation Loop
-
-		var animation = new WebGLAnimation();
-
-		this.setAnimationLoop = function ( callback ) {
-
-			animation.setAnimationLoop( callback );
-
-			if ( isPresenting() ) animation.start();
-
-		};
-
-		this.submitFrame = function () {
-
-			if ( isPresenting() ) device.submitFrame();
-
-		};
-
-		this.dispose = function () {
-
-			if ( typeof window !== 'undefined' ) {
-
-				window.removeEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange );
-
-			}
-
-		};
-
-		// DEPRECATED
-
-		this.setFrameOfReferenceType = function () {
-
-			console.warn( 'THREE.WebVRManager: setFrameOfReferenceType() has been deprecated.' );
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebXRManager( renderer ) {
-
-		var gl = renderer.context;
-
-		var session = null;
-
-		var referenceSpace = null;
-		var referenceSpaceType = 'local-floor';
-
-		var pose = null;
-
-		var controllers = [];
-		var inputSources = [];
-
-		function isPresenting() {
-
-			return session !== null && referenceSpace !== null;
-
-		}
-
-		//
-
-		var cameraL = new PerspectiveCamera();
-		cameraL.layers.enable( 1 );
-		cameraL.viewport = new Vector4();
-
-		var cameraR = new PerspectiveCamera();
-		cameraR.layers.enable( 2 );
-		cameraR.viewport = new Vector4();
-
-		var cameraVR = new ArrayCamera( [ cameraL, cameraR ] );
-		cameraVR.layers.enable( 1 );
-		cameraVR.layers.enable( 2 );
-
-		//
-
-		this.enabled = false;
-
-		this.getController = function ( id ) {
-
-			var controller = controllers[ id ];
-
-			if ( controller === undefined ) {
-
-				controller = new Group();
-				controller.matrixAutoUpdate = false;
-				controller.visible = false;
-
-				controllers[ id ] = controller;
-
-			}
-
-			return controller;
-
-		};
-
-		//
-
-		function onSessionEvent( event ) {
-
-			for ( var i = 0; i < controllers.length; i ++ ) {
-
-				if ( inputSources[ i ] === event.inputSource ) {
-
-					controllers[ i ].dispatchEvent( { type: event.type } );
-
-				}
-
-			}
-
-		}
-
-		function onSessionEnd() {
-
-			renderer.setFramebuffer( null );
-			renderer.setRenderTarget( renderer.getRenderTarget() ); // Hack #15830
-			animation.stop();
-
-		}
-
-		function onRequestReferenceSpace( value ) {
-
-			referenceSpace = value;
-
-			animation.setContext( session );
-			animation.start();
-
-		}
-
-		this.setFramebufferScaleFactor = function ( value ) {
-
-		};
-
-		this.setReferenceSpaceType = function ( value ) {
-
-			referenceSpaceType = value;
-
-		};
-
-		this.getSession = function () {
-
-			return session;
-
-		};
-
-		this.setSession = function ( value ) {
-
-			session = value;
-
-			if ( session !== null ) {
-
-				session.addEventListener( 'select', onSessionEvent );
-				session.addEventListener( 'selectstart', onSessionEvent );
-				session.addEventListener( 'selectend', onSessionEvent );
-				session.addEventListener( 'end', onSessionEnd );
-
-				session.updateRenderState( { baseLayer: new XRWebGLLayer( session, gl ) } );
-
-				session.requestReferenceSpace( referenceSpaceType ).then( onRequestReferenceSpace );
-
-				//
-
-				inputSources = session.inputSources;
-
-				session.addEventListener( 'inputsourceschange', function () {
-
-					inputSources = session.inputSources;
-					console.log( inputSources );
-
-					for ( var i = 0; i < controllers.length; i ++ ) {
-
-						var controller = controllers[ i ];
-						controller.userData.inputSource = inputSources[ i ];
-
-					}
-
-				} );
-
-			}
-
-		};
-
-		function updateCamera( camera, parent ) {
-
-			if ( parent === null ) {
-
-				camera.matrixWorld.copy( camera.matrix );
-
-			} else {
-
-				camera.matrixWorld.multiplyMatrices( parent.matrixWorld, camera.matrix );
-
-			}
-
-			camera.matrixWorldInverse.getInverse( camera.matrixWorld );
-
-		}
-
-		this.getCamera = function ( camera ) {
-
-			if ( isPresenting() ) {
-
-				var parent = camera.parent;
-				var cameras = cameraVR.cameras;
-
-				updateCamera( cameraVR, parent );
-
-				for ( var i = 0; i < cameras.length; i ++ ) {
-
-					updateCamera( cameras[ i ], parent );
-
-				}
-
-				// update camera and its children
-
-				camera.matrixWorld.copy( cameraVR.matrixWorld );
-
-				var children = camera.children;
-
-				for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-					children[ i ].updateMatrixWorld( true );
-
-				}
-
-				setProjectionFromUnion( cameraVR, cameraL, cameraR );
-
-				return cameraVR;
-
-			}
-
-			return camera;
-
-		};
-
-		this.isPresenting = isPresenting;
-
-		// Animation Loop
-
-		var onAnimationFrameCallback = null;
-
-		function onAnimationFrame( time, frame ) {
-
-			pose = frame.getViewerPose( referenceSpace );
-
-			if ( pose !== null ) {
-
-				var views = pose.views;
-				var baseLayer = session.renderState.baseLayer;
-
-				renderer.setFramebuffer( baseLayer.framebuffer );
-
-				for ( var i = 0; i < views.length; i ++ ) {
-
-					var view = views[ i ];
-					var viewport = baseLayer.getViewport( view );
-					var viewMatrix = view.transform.inverse.matrix;
-
-					var camera = cameraVR.cameras[ i ];
-					camera.matrix.fromArray( viewMatrix ).getInverse( camera.matrix );
-					camera.projectionMatrix.fromArray( view.projectionMatrix );
-					camera.viewport.set( viewport.x, viewport.y, viewport.width, viewport.height );
-
-					if ( i === 0 ) {
-
-						cameraVR.matrix.copy( camera.matrix );
-
-					}
-
-				}
-
-			}
-
-			//
-
-			for ( var i = 0; i < controllers.length; i ++ ) {
-
-				var controller = controllers[ i ];
-
-				var inputSource = inputSources[ i ];
-
-				if ( inputSource ) {
-
-					var inputPose = frame.getPose( inputSource.targetRaySpace, referenceSpace );
-
-					if ( inputPose !== null ) {
-
-						controller.matrix.fromArray( inputPose.transform.matrix );
-						controller.matrix.decompose( controller.position, controller.rotation, controller.scale );
-						controller.visible = true;
-
-						continue;
-
-					}
-
-				}
-
-				controller.visible = false;
-
-			}
-
-			if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );
-
-		}
-
-		var animation = new WebGLAnimation();
-		animation.setAnimationLoop( onAnimationFrame );
-
-		this.setAnimationLoop = function ( callback ) {
-
-			onAnimationFrameCallback = callback;
-
-		};
-
-		this.dispose = function () {};
-
-		// DEPRECATED
-
-		this.getStandingMatrix = function () {
-
-			console.warn( 'THREE.WebXRManager: getStandingMatrix() is no longer needed.' );
-			return new Matrix4();
-
-		};
-
-		this.getDevice = function () {
-
-			console.warn( 'THREE.WebXRManager: getDevice() has been deprecated.' );
-
-		};
-
-		this.setDevice = function () {
-
-			console.warn( 'THREE.WebXRManager: setDevice() has been deprecated.' );
-
-		};
-
-		this.setFrameOfReferenceType = function () {
-
-			console.warn( 'THREE.WebXRManager: setFrameOfReferenceType() has been deprecated.' );
-
-		};
-
-		this.submitFrame = function () {};
-
-	}
-
-	/**
-	 * @author supereggbert / http://www.paulbrunt.co.uk/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author szimek / https://github.com/szimek/
-	 * @author tschw
-	 */
-
-	function WebGLRenderer( parameters ) {
-
-		console.log( 'THREE.WebGLRenderer', REVISION );
-
-		parameters = parameters || {};
-
-		var _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ),
-			_context = parameters.context !== undefined ? parameters.context : null,
-
-			_alpha = parameters.alpha !== undefined ? parameters.alpha : false,
-			_depth = parameters.depth !== undefined ? parameters.depth : true,
-			_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
-			_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
-			_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
-			_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,
-			_powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default',
-			_failIfMajorPerformanceCaveat = parameters.failIfMajorPerformanceCaveat !== undefined ? parameters.failIfMajorPerformanceCaveat : false;
-
-		var currentRenderList = null;
-		var currentRenderState = null;
-
-		// public properties
-
-		this.domElement = _canvas;
-		this.context = null;
-
-		// Debug configuration container
-		this.debug = {
-
-			/**
-			 * Enables error checking and reporting when shader programs are being compiled
-			 * @type {boolean}
-			 */
-			checkShaderErrors: true
-		};
-
-		// clearing
-
-		this.autoClear = true;
-		this.autoClearColor = true;
-		this.autoClearDepth = true;
-		this.autoClearStencil = true;
-
-		// scene graph
-
-		this.sortObjects = true;
-
-		// user-defined clipping
-
-		this.clippingPlanes = [];
-		this.localClippingEnabled = false;
-
-		// physically based shading
-
-		this.gammaFactor = 2.0;	// for backwards compatibility
-		this.gammaInput = false;
-		this.gammaOutput = false;
-
-		// physical lights
-
-		this.physicallyCorrectLights = false;
-
-		// tone mapping
-
-		this.toneMapping = LinearToneMapping;
-		this.toneMappingExposure = 1.0;
-		this.toneMappingWhitePoint = 1.0;
-
-		// morphs
-
-		this.maxMorphTargets = 8;
-		this.maxMorphNormals = 4;
-
-		// internal properties
-
-		var _this = this,
-
-			_isContextLost = false,
-
-			// internal state cache
-
-			_framebuffer = null,
-
-			_currentActiveCubeFace = 0,
-			_currentActiveMipmapLevel = 0,
-			_currentRenderTarget = null,
-			_currentFramebuffer = null,
-			_currentMaterialId = - 1,
-
-			// geometry and program caching
-
-			_currentGeometryProgram = {
-				geometry: null,
-				program: null,
-				wireframe: false
-			},
-
-			_currentCamera = null,
-			_currentArrayCamera = null,
-
-			_currentViewport = new Vector4(),
-			_currentScissor = new Vector4(),
-			_currentScissorTest = null,
-
-			//
-
-			_width = _canvas.width,
-			_height = _canvas.height,
-
-			_pixelRatio = 1,
-
-			_viewport = new Vector4( 0, 0, _width, _height ),
-			_scissor = new Vector4( 0, 0, _width, _height ),
-			_scissorTest = false,
-
-			// frustum
-
-			_frustum = new Frustum(),
-
-			// clipping
-
-			_clipping = new WebGLClipping(),
-			_clippingEnabled = false,
-			_localClippingEnabled = false,
-
-			// camera matrices cache
-
-			_projScreenMatrix = new Matrix4(),
-
-			_vector3 = new Vector3();
-
-		function getTargetPixelRatio() {
-
-			return _currentRenderTarget === null ? _pixelRatio : 1;
-
-		}
-
-		// initialize
-
-		var _gl;
-
-		try {
-
-			var contextAttributes = {
-				alpha: _alpha,
-				depth: _depth,
-				stencil: _stencil,
-				antialias: _antialias,
-				premultipliedAlpha: _premultipliedAlpha,
-				preserveDrawingBuffer: _preserveDrawingBuffer,
-				powerPreference: _powerPreference,
-				failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat,
-				xrCompatible: true
-			};
-
-			// event listeners must be registered before WebGL context is created, see #12753
-
-			_canvas.addEventListener( 'webglcontextlost', onContextLost, false );
-			_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );
-
-			_gl = _context || _canvas.getContext( 'webgl', contextAttributes ) || _canvas.getContext( 'experimental-webgl', contextAttributes );
-
-			if ( _gl === null ) {
-
-				if ( _canvas.getContext( 'webgl' ) !== null ) {
-
-					throw new Error( 'Error creating WebGL context with your selected attributes.' );
-
-				} else {
-
-					throw new Error( 'Error creating WebGL context.' );
-
-				}
-
-			}
-
-			// Some experimental-webgl implementations do not have getShaderPrecisionFormat
-
-			if ( _gl.getShaderPrecisionFormat === undefined ) {
-
-				_gl.getShaderPrecisionFormat = function () {
-
-					return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };
-
-				};
-
-			}
-
-		} catch ( error ) {
-
-			console.error( 'THREE.WebGLRenderer: ' + error.message );
-			throw error;
-
-		}
-
-		var extensions, capabilities, state, info;
-		var properties, textures, attributes, geometries, objects;
-		var programCache, renderLists, renderStates;
-
-		var background, morphtargets, bufferRenderer, indexedBufferRenderer;
-
-		var utils;
-
-		function initGLContext() {
-
-			extensions = new WebGLExtensions( _gl );
-
-			capabilities = new WebGLCapabilities( _gl, extensions, parameters );
-
-			if ( ! capabilities.isWebGL2 ) {
-
-				extensions.get( 'WEBGL_depth_texture' );
-				extensions.get( 'OES_texture_float' );
-				extensions.get( 'OES_texture_half_float' );
-				extensions.get( 'OES_texture_half_float_linear' );
-				extensions.get( 'OES_standard_derivatives' );
-				extensions.get( 'OES_element_index_uint' );
-				extensions.get( 'ANGLE_instanced_arrays' );
-
-			}
-
-			extensions.get( 'OES_texture_float_linear' );
-
-			utils = new WebGLUtils( _gl, extensions, capabilities );
-
-			state = new WebGLState( _gl, extensions, utils, capabilities );
-			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
-			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );
-
-			info = new WebGLInfo( _gl );
-			properties = new WebGLProperties();
-			textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info );
-			attributes = new WebGLAttributes( _gl );
-			geometries = new WebGLGeometries( _gl, attributes, info );
-			objects = new WebGLObjects( geometries, info );
-			morphtargets = new WebGLMorphtargets( _gl );
-			programCache = new WebGLPrograms( _this, extensions, capabilities, textures );
-			renderLists = new WebGLRenderLists();
-			renderStates = new WebGLRenderStates();
-
-			background = new WebGLBackground( _this, state, objects, _premultipliedAlpha );
-
-			bufferRenderer = new WebGLBufferRenderer( _gl, extensions, info, capabilities );
-			indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info, capabilities );
-
-			info.programs = programCache.programs;
-
-			_this.context = _gl;
-			_this.capabilities = capabilities;
-			_this.extensions = extensions;
-			_this.properties = properties;
-			_this.renderLists = renderLists;
-			_this.state = state;
-			_this.info = info;
-
-		}
-
-		initGLContext();
-
-		// vr
-
-		var vr = ( typeof navigator !== 'undefined' && 'xr' in navigator && 'supportsSession' in navigator.xr ) ? new WebXRManager( _this ) : new WebVRManager( _this );
-
-		this.vr = vr;
-
-		// shadow map
-
-		var shadowMap = new WebGLShadowMap( _this, objects, capabilities.maxTextureSize );
-
-		this.shadowMap = shadowMap;
-
-		// API
-
-		this.getContext = function () {
-
-			return _gl;
-
-		};
-
-		this.getContextAttributes = function () {
-
-			return _gl.getContextAttributes();
-
-		};
-
-		this.forceContextLoss = function () {
-
-			var extension = extensions.get( 'WEBGL_lose_context' );
-			if ( extension ) extension.loseContext();
-
-		};
-
-		this.forceContextRestore = function () {
-
-			var extension = extensions.get( 'WEBGL_lose_context' );
-			if ( extension ) extension.restoreContext();
-
-		};
-
-		this.getPixelRatio = function () {
-
-			return _pixelRatio;
-
-		};
-
-		this.setPixelRatio = function ( value ) {
-
-			if ( value === undefined ) return;
-
-			_pixelRatio = value;
-
-			this.setSize( _width, _height, false );
-
-		};
-
-		this.getSize = function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'WebGLRenderer: .getsize() now requires a Vector2 as an argument' );
-
-				target = new Vector2();
-
-			}
-
-			return target.set( _width, _height );
-
-		};
-
-		this.setSize = function ( width, height, updateStyle ) {
-
-			if ( vr.isPresenting() ) {
-
-				console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' );
-				return;
-
-			}
-
-			_width = width;
-			_height = height;
-
-			_canvas.width = width * _pixelRatio;
-			_canvas.height = height * _pixelRatio;
-
-			if ( updateStyle !== false ) {
-
-				_canvas.style.width = width + 'px';
-				_canvas.style.height = height + 'px';
-
-			}
-
-			this.setViewport( 0, 0, width, height );
-
-		};
-
-		this.getDrawingBufferSize = function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'WebGLRenderer: .getdrawingBufferSize() now requires a Vector2 as an argument' );
-
-				target = new Vector2();
-
-			}
-
-			return target.set( _width * _pixelRatio, _height * _pixelRatio );
-
-		};
-
-		this.setDrawingBufferSize = function ( width, height, pixelRatio ) {
-
-			_width = width;
-			_height = height;
-
-			_pixelRatio = pixelRatio;
-
-			_canvas.width = width * pixelRatio;
-			_canvas.height = height * pixelRatio;
-
-			this.setViewport( 0, 0, width, height );
-
-		};
-
-		this.getCurrentViewport = function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'WebGLRenderer: .getCurrentViewport() now requires a Vector4 as an argument' );
-
-				target = new Vector4();
-
-			}
-
-			return target.copy( _currentViewport );
-
-		};
-
-		this.getViewport = function ( target ) {
-
-			return target.copy( _viewport );
-
-		};
-
-		this.setViewport = function ( x, y, width, height ) {
-
-			if ( x.isVector4 ) {
-
-				_viewport.set( x.x, x.y, x.z, x.w );
-
-			} else {
-
-				_viewport.set( x, y, width, height );
-
-			}
-
-			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );
-
-		};
-
-		this.getScissor = function ( target ) {
-
-			return target.copy( _scissor );
-
-		};
-
-		this.setScissor = function ( x, y, width, height ) {
-
-			if ( x.isVector4 ) {
-
-				_scissor.set( x.x, x.y, x.z, x.w );
-
-			} else {
-
-				_scissor.set( x, y, width, height );
-
-			}
-
-			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
-
-		};
-
-		this.getScissorTest = function () {
-
-			return _scissorTest;
-
-		};
-
-		this.setScissorTest = function ( boolean ) {
-
-			state.setScissorTest( _scissorTest = boolean );
-
-		};
-
-		// Clearing
-
-		this.getClearColor = function () {
-
-			return background.getClearColor();
-
-		};
-
-		this.setClearColor = function () {
-
-			background.setClearColor.apply( background, arguments );
-
-		};
-
-		this.getClearAlpha = function () {
-
-			return background.getClearAlpha();
-
-		};
-
-		this.setClearAlpha = function () {
-
-			background.setClearAlpha.apply( background, arguments );
-
-		};
-
-		this.clear = function ( color, depth, stencil ) {
-
-			var bits = 0;
-
-			if ( color === undefined || color ) bits |= 16384;
-			if ( depth === undefined || depth ) bits |= 256;
-			if ( stencil === undefined || stencil ) bits |= 1024;
-
-			_gl.clear( bits );
-
-		};
-
-		this.clearColor = function () {
-
-			this.clear( true, false, false );
-
-		};
-
-		this.clearDepth = function () {
-
-			this.clear( false, true, false );
-
-		};
-
-		this.clearStencil = function () {
-
-			this.clear( false, false, true );
-
-		};
-
-		//
-
-		this.dispose = function () {
-
-			_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );
-			_canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );
-
-			renderLists.dispose();
-			renderStates.dispose();
-			properties.dispose();
-			objects.dispose();
-
-			vr.dispose();
-
-			animation.stop();
-
-		};
-
-		// Events
-
-		function onContextLost( event ) {
-
-			event.preventDefault();
-
-			console.log( 'THREE.WebGLRenderer: Context Lost.' );
-
-			_isContextLost = true;
-
-		}
-
-		function onContextRestore( /* event */ ) {
-
-			console.log( 'THREE.WebGLRenderer: Context Restored.' );
-
-			_isContextLost = false;
-
-			initGLContext();
-
-		}
-
-		function onMaterialDispose( event ) {
-
-			var material = event.target;
-
-			material.removeEventListener( 'dispose', onMaterialDispose );
-
-			deallocateMaterial( material );
-
-		}
-
-		// Buffer deallocation
-
-		function deallocateMaterial( material ) {
-
-			releaseMaterialProgramReference( material );
-
-			properties.remove( material );
-
-		}
-
-
-		function releaseMaterialProgramReference( material ) {
-
-			var programInfo = properties.get( material ).program;
-
-			material.program = undefined;
-
-			if ( programInfo !== undefined ) {
-
-				programCache.releaseProgram( programInfo );
-
-			}
-
-		}
-
-		// Buffer rendering
-
-		function renderObjectImmediate( object, program ) {
-
-			object.render( function ( object ) {
-
-				_this.renderBufferImmediate( object, program );
-
-			} );
-
-		}
-
-		this.renderBufferImmediate = function ( object, program ) {
-
-			state.initAttributes();
-
-			var buffers = properties.get( object );
-
-			if ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();
-			if ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();
-			if ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();
-			if ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();
-
-			var programAttributes = program.getAttributes();
-
-			if ( object.hasPositions ) {
-
-				_gl.bindBuffer( 34962, buffers.position );
-				_gl.bufferData( 34962, object.positionArray, 35048 );
-
-				state.enableAttribute( programAttributes.position );
-				_gl.vertexAttribPointer( programAttributes.position, 3, 5126, false, 0, 0 );
-
-			}
-
-			if ( object.hasNormals ) {
-
-				_gl.bindBuffer( 34962, buffers.normal );
-				_gl.bufferData( 34962, object.normalArray, 35048 );
-
-				state.enableAttribute( programAttributes.normal );
-				_gl.vertexAttribPointer( programAttributes.normal, 3, 5126, false, 0, 0 );
-
-			}
-
-			if ( object.hasUvs ) {
-
-				_gl.bindBuffer( 34962, buffers.uv );
-				_gl.bufferData( 34962, object.uvArray, 35048 );
-
-				state.enableAttribute( programAttributes.uv );
-				_gl.vertexAttribPointer( programAttributes.uv, 2, 5126, false, 0, 0 );
-
-			}
-
-			if ( object.hasColors ) {
-
-				_gl.bindBuffer( 34962, buffers.color );
-				_gl.bufferData( 34962, object.colorArray, 35048 );
-
-				state.enableAttribute( programAttributes.color );
-				_gl.vertexAttribPointer( programAttributes.color, 3, 5126, false, 0, 0 );
-
-			}
-
-			state.disableUnusedAttributes();
-
-			_gl.drawArrays( 4, 0, object.count );
-
-			object.count = 0;
-
-		};
-
-		this.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {
-
-			var frontFaceCW = ( object.isMesh && object.matrixWorld.determinant() < 0 );
-
-			state.setMaterial( material, frontFaceCW );
-
-			var program = setProgram( camera, fog, material, object );
-
-			var updateBuffers = false;
-
-			if ( _currentGeometryProgram.geometry !== geometry.id ||
-				_currentGeometryProgram.program !== program.id ||
-				_currentGeometryProgram.wireframe !== ( material.wireframe === true ) ) {
-
-				_currentGeometryProgram.geometry = geometry.id;
-				_currentGeometryProgram.program = program.id;
-				_currentGeometryProgram.wireframe = material.wireframe === true;
-				updateBuffers = true;
-
-			}
-
-			if ( object.morphTargetInfluences ) {
-
-				morphtargets.update( object, geometry, material, program );
-
-				updateBuffers = true;
-
-			}
-
-			//
-
-			var index = geometry.index;
-			var position = geometry.attributes.position;
-			var rangeFactor = 1;
-
-			if ( material.wireframe === true ) {
-
-				index = geometries.getWireframeAttribute( geometry );
-				rangeFactor = 2;
-
-			}
-
-			var attribute;
-			var renderer = bufferRenderer;
-
-			if ( index !== null ) {
-
-				attribute = attributes.get( index );
-
-				renderer = indexedBufferRenderer;
-				renderer.setIndex( attribute );
-
-			}
-
-			if ( updateBuffers ) {
-
-				setupVertexAttributes( material, program, geometry );
-
-				if ( index !== null ) {
-
-					_gl.bindBuffer( 34963, attribute.buffer );
-
-				}
-
-			}
-
-			//
-
-			var dataCount = Infinity;
-
-			if ( index !== null ) {
-
-				dataCount = index.count;
-
-			} else if ( position !== undefined ) {
-
-				dataCount = position.count;
-
-			}
-
-			var rangeStart = geometry.drawRange.start * rangeFactor;
-			var rangeCount = geometry.drawRange.count * rangeFactor;
-
-			var groupStart = group !== null ? group.start * rangeFactor : 0;
-			var groupCount = group !== null ? group.count * rangeFactor : Infinity;
-
-			var drawStart = Math.max( rangeStart, groupStart );
-			var drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;
-
-			var drawCount = Math.max( 0, drawEnd - drawStart + 1 );
-
-			if ( drawCount === 0 ) return;
-
-			//
-
-			if ( object.isMesh ) {
-
-				if ( material.wireframe === true ) {
-
-					state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
-					renderer.setMode( 1 );
-
-				} else {
-
-					switch ( object.drawMode ) {
-
-						case TrianglesDrawMode:
-							renderer.setMode( 4 );
-							break;
-
-						case TriangleStripDrawMode:
-							renderer.setMode( 5 );
-							break;
-
-						case TriangleFanDrawMode:
-							renderer.setMode( 6 );
-							break;
-
-					}
-
-				}
-
-
-			} else if ( object.isLine ) {
-
-				var lineWidth = material.linewidth;
-
-				if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material
-
-				state.setLineWidth( lineWidth * getTargetPixelRatio() );
-
-				if ( object.isLineSegments ) {
-
-					renderer.setMode( 1 );
-
-				} else if ( object.isLineLoop ) {
-
-					renderer.setMode( 2 );
-
-				} else {
-
-					renderer.setMode( 3 );
-
-				}
-
-			} else if ( object.isPoints ) {
-
-				renderer.setMode( 0 );
-
-			} else if ( object.isSprite ) {
-
-				renderer.setMode( 4 );
-
-			}
-
-			if ( geometry && geometry.isInstancedBufferGeometry ) {
-
-				if ( geometry.maxInstancedCount > 0 ) {
-
-					renderer.renderInstances( geometry, drawStart, drawCount );
-
-				}
-
-			} else {
-
-				renderer.render( drawStart, drawCount );
-
-			}
-
-		};
-
-		function setupVertexAttributes( material, program, geometry ) {
-
-			if ( geometry && geometry.isInstancedBufferGeometry && ! capabilities.isWebGL2 ) {
-
-				if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) {
-
-					console.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
-					return;
-
-				}
-
-			}
-
-			state.initAttributes();
-
-			var geometryAttributes = geometry.attributes;
-
-			var programAttributes = program.getAttributes();
-
-			var materialDefaultAttributeValues = material.defaultAttributeValues;
-
-			for ( var name in programAttributes ) {
-
-				var programAttribute = programAttributes[ name ];
-
-				if ( programAttribute >= 0 ) {
-
-					var geometryAttribute = geometryAttributes[ name ];
-
-					if ( geometryAttribute !== undefined ) {
-
-						var normalized = geometryAttribute.normalized;
-						var size = geometryAttribute.itemSize;
-
-						var attribute = attributes.get( geometryAttribute );
-
-						// TODO Attribute may not be available on context restore
-
-						if ( attribute === undefined ) continue;
-
-						var buffer = attribute.buffer;
-						var type = attribute.type;
-						var bytesPerElement = attribute.bytesPerElement;
-
-						if ( geometryAttribute.isInterleavedBufferAttribute ) {
-
-							var data = geometryAttribute.data;
-							var stride = data.stride;
-							var offset = geometryAttribute.offset;
-
-							if ( data && data.isInstancedInterleavedBuffer ) {
-
-								state.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute );
-
-								if ( geometry.maxInstancedCount === undefined ) {
-
-									geometry.maxInstancedCount = data.meshPerAttribute * data.count;
-
-								}
-
-							} else {
-
-								state.enableAttribute( programAttribute );
-
-							}
-
-							_gl.bindBuffer( 34962, buffer );
-							_gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * bytesPerElement, offset * bytesPerElement );
-
-						} else {
-
-							if ( geometryAttribute.isInstancedBufferAttribute ) {
-
-								state.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute );
-
-								if ( geometry.maxInstancedCount === undefined ) {
-
-									geometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;
-
-								}
-
-							} else {
-
-								state.enableAttribute( programAttribute );
-
-							}
-
-							_gl.bindBuffer( 34962, buffer );
-							_gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, 0 );
-
-						}
-
-					} else if ( materialDefaultAttributeValues !== undefined ) {
-
-						var value = materialDefaultAttributeValues[ name ];
-
-						if ( value !== undefined ) {
-
-							switch ( value.length ) {
-
-								case 2:
-									_gl.vertexAttrib2fv( programAttribute, value );
-									break;
-
-								case 3:
-									_gl.vertexAttrib3fv( programAttribute, value );
-									break;
-
-								case 4:
-									_gl.vertexAttrib4fv( programAttribute, value );
-									break;
-
-								default:
-									_gl.vertexAttrib1fv( programAttribute, value );
-
-							}
-
-						}
-
-					}
-
-				}
-
-			}
-
-			state.disableUnusedAttributes();
-
-		}
-
-		// Compile
-
-		this.compile = function ( scene, camera ) {
-
-			currentRenderState = renderStates.get( scene, camera );
-			currentRenderState.init();
-
-			scene.traverse( function ( object ) {
-
-				if ( object.isLight ) {
-
-					currentRenderState.pushLight( object );
-
-					if ( object.castShadow ) {
-
-						currentRenderState.pushShadow( object );
-
-					}
-
-				}
-
-			} );
-
-			currentRenderState.setupLights( camera );
-
-			scene.traverse( function ( object ) {
-
-				if ( object.material ) {
-
-					if ( Array.isArray( object.material ) ) {
-
-						for ( var i = 0; i < object.material.length; i ++ ) {
-
-							initMaterial( object.material[ i ], scene.fog, object );
-
-						}
-
-					} else {
-
-						initMaterial( object.material, scene.fog, object );
-
-					}
-
-				}
-
-			} );
-
-		};
-
-		// Animation Loop
-
-		var onAnimationFrameCallback = null;
-
-		function onAnimationFrame( time ) {
-
-			if ( vr.isPresenting() ) return;
-			if ( onAnimationFrameCallback ) onAnimationFrameCallback( time );
-
-		}
-
-		var animation = new WebGLAnimation();
-		animation.setAnimationLoop( onAnimationFrame );
-
-		if ( typeof window !== 'undefined' ) animation.setContext( window );
-
-		this.setAnimationLoop = function ( callback ) {
-
-			onAnimationFrameCallback = callback;
-			vr.setAnimationLoop( callback );
-
-			animation.start();
-
-		};
-
-		// Rendering
-
-		this.render = function ( scene, camera ) {
-
-			var renderTarget, forceClear;
-
-			if ( arguments[ 2 ] !== undefined ) {
-
-				console.warn( 'THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead.' );
-				renderTarget = arguments[ 2 ];
-
-			}
-
-			if ( arguments[ 3 ] !== undefined ) {
-
-				console.warn( 'THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead.' );
-				forceClear = arguments[ 3 ];
-
-			}
-
-			if ( ! ( camera && camera.isCamera ) ) {
-
-				console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
-				return;
-
-			}
-
-			if ( _isContextLost ) return;
-
-			// reset caching for this frame
-
-			_currentGeometryProgram.geometry = null;
-			_currentGeometryProgram.program = null;
-			_currentGeometryProgram.wireframe = false;
-			_currentMaterialId = - 1;
-			_currentCamera = null;
-
-			// update scene graph
-
-			if ( scene.autoUpdate === true ) scene.updateMatrixWorld();
-
-			// update camera matrices and frustum
-
-			if ( camera.parent === null ) camera.updateMatrixWorld();
-
-			if ( vr.enabled ) {
-
-				camera = vr.getCamera( camera );
-
-			}
-
-			//
-
-			currentRenderState = renderStates.get( scene, camera );
-			currentRenderState.init();
-
-			scene.onBeforeRender( _this, scene, camera, renderTarget || _currentRenderTarget );
-
-			_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
-			_frustum.setFromMatrix( _projScreenMatrix );
-
-			_localClippingEnabled = this.localClippingEnabled;
-			_clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera );
-
-			currentRenderList = renderLists.get( scene, camera );
-			currentRenderList.init();
-
-			projectObject( scene, camera, 0, _this.sortObjects );
-
-			if ( _this.sortObjects === true ) {
-
-				currentRenderList.sort();
-
-			}
-
-			//
-
-			if ( _clippingEnabled ) _clipping.beginShadows();
-
-			var shadowsArray = currentRenderState.state.shadowsArray;
-
-			shadowMap.render( shadowsArray, scene, camera );
-
-			currentRenderState.setupLights( camera );
-
-			if ( _clippingEnabled ) _clipping.endShadows();
-
-			//
-
-			if ( this.info.autoReset ) this.info.reset();
-
-			if ( renderTarget !== undefined ) {
-
-				this.setRenderTarget( renderTarget );
-
-			}
-
-			//
-
-			background.render( currentRenderList, scene, camera, forceClear );
-
-			// render scene
-
-			var opaqueObjects = currentRenderList.opaque;
-			var transparentObjects = currentRenderList.transparent;
-
-			if ( scene.overrideMaterial ) {
-
-				var overrideMaterial = scene.overrideMaterial;
-
-				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera, overrideMaterial );
-				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera, overrideMaterial );
-
-			} else {
-
-				// opaque pass (front-to-back order)
-
-				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera );
-
-				// transparent pass (back-to-front order)
-
-				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera );
-
-			}
-
-			//
-
-			scene.onAfterRender( _this, scene, camera );
-
-			//
-
-			if ( _currentRenderTarget !== null ) {
-
-				// Generate mipmap if we're using any kind of mipmap filtering
-
-				textures.updateRenderTargetMipmap( _currentRenderTarget );
-
-				// resolve multisample renderbuffers to a single-sample texture if necessary
-
-				textures.updateMultisampleRenderTarget( _currentRenderTarget );
-
-			}
-
-			// Ensure depth buffer writing is enabled so it can be cleared on next render
-
-			state.buffers.depth.setTest( true );
-			state.buffers.depth.setMask( true );
-			state.buffers.color.setMask( true );
-
-			state.setPolygonOffset( false );
-
-			if ( vr.enabled ) {
-
-				vr.submitFrame();
-
-			}
-
-			// _gl.finish();
-
-			currentRenderList = null;
-			currentRenderState = null;
-
-		};
-
-		function projectObject( object, camera, groupOrder, sortObjects ) {
-
-			if ( object.visible === false ) return;
-
-			var visible = object.layers.test( camera.layers );
-
-			if ( visible ) {
-
-				if ( object.isGroup ) {
-
-					groupOrder = object.renderOrder;
-
-				} else if ( object.isLight ) {
-
-					currentRenderState.pushLight( object );
-
-					if ( object.castShadow ) {
-
-						currentRenderState.pushShadow( object );
-
-					}
-
-				} else if ( object.isSprite ) {
-
-					if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {
-
-						if ( sortObjects ) {
-
-							_vector3.setFromMatrixPosition( object.matrixWorld )
-								.applyMatrix4( _projScreenMatrix );
-
-						}
-
-						var geometry = objects.update( object );
-						var material = object.material;
-
-						if ( material.visible ) {
-
-							currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null );
-
-						}
-
-					}
-
-				} else if ( object.isImmediateRenderObject ) {
-
-					if ( sortObjects ) {
-
-						_vector3.setFromMatrixPosition( object.matrixWorld )
-							.applyMatrix4( _projScreenMatrix );
-
-					}
-
-					currentRenderList.push( object, null, object.material, groupOrder, _vector3.z, null );
-
-				} else if ( object.isMesh || object.isLine || object.isPoints ) {
-
-					if ( object.isSkinnedMesh ) {
-
-						object.skeleton.update();
-
-					}
-
-					if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {
-
-						if ( sortObjects ) {
-
-							_vector3.setFromMatrixPosition( object.matrixWorld )
-								.applyMatrix4( _projScreenMatrix );
-
-						}
-
-						var geometry = objects.update( object );
-						var material = object.material;
-
-						if ( Array.isArray( material ) ) {
-
-							var groups = geometry.groups;
-
-							for ( var i = 0, l = groups.length; i < l; i ++ ) {
-
-								var group = groups[ i ];
-								var groupMaterial = material[ group.materialIndex ];
-
-								if ( groupMaterial && groupMaterial.visible ) {
-
-									currentRenderList.push( object, geometry, groupMaterial, groupOrder, _vector3.z, group );
-
-								}
-
-							}
-
-						} else if ( material.visible ) {
-
-							currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null );
-
-						}
-
-					}
-
-				}
-
-			}
-
-			var children = object.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				projectObject( children[ i ], camera, groupOrder, sortObjects );
-
-			}
-
-		}
-
-		function renderObjects( renderList, scene, camera, overrideMaterial ) {
-
-			for ( var i = 0, l = renderList.length; i < l; i ++ ) {
-
-				var renderItem = renderList[ i ];
-
-				var object = renderItem.object;
-				var geometry = renderItem.geometry;
-				var material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;
-				var group = renderItem.group;
-
-				if ( camera.isArrayCamera ) {
-
-					_currentArrayCamera = camera;
-
-					var cameras = camera.cameras;
-
-					for ( var j = 0, jl = cameras.length; j < jl; j ++ ) {
-
-						var camera2 = cameras[ j ];
-
-						if ( object.layers.test( camera2.layers ) ) {
-
-							state.viewport( _currentViewport.copy( camera2.viewport ) );
-
-							currentRenderState.setupLights( camera2 );
-
-							renderObject( object, scene, camera2, geometry, material, group );
-
-						}
-
-					}
-
-				} else {
-
-					_currentArrayCamera = null;
-
-					renderObject( object, scene, camera, geometry, material, group );
-
-				}
-
-			}
-
-		}
-
-		function renderObject( object, scene, camera, geometry, material, group ) {
-
-			object.onBeforeRender( _this, scene, camera, geometry, material, group );
-			currentRenderState = renderStates.get( scene, _currentArrayCamera || camera );
-
-			object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
-			object.normalMatrix.getNormalMatrix( object.modelViewMatrix );
-
-			if ( object.isImmediateRenderObject ) {
-
-				state.setMaterial( material );
-
-				var program = setProgram( camera, scene.fog, material, object );
-
-				_currentGeometryProgram.geometry = null;
-				_currentGeometryProgram.program = null;
-				_currentGeometryProgram.wireframe = false;
-
-				renderObjectImmediate( object, program );
-
-			} else {
-
-				_this.renderBufferDirect( camera, scene.fog, geometry, material, object, group );
-
-			}
-
-			object.onAfterRender( _this, scene, camera, geometry, material, group );
-			currentRenderState = renderStates.get( scene, _currentArrayCamera || camera );
-
-		}
-
-		function initMaterial( material, fog, object ) {
-
-			var materialProperties = properties.get( material );
-
-			var lights = currentRenderState.state.lights;
-			var shadowsArray = currentRenderState.state.shadowsArray;
-
-			var lightsHash = materialProperties.lightsHash;
-			var lightsStateHash = lights.state.hash;
-
-			var parameters = programCache.getParameters(
-				material, lights.state, shadowsArray, fog, _clipping.numPlanes, _clipping.numIntersection, object );
-
-			var code = programCache.getProgramCode( material, parameters );
-
-			var program = materialProperties.program;
-			var programChange = true;
-
-			if ( program === undefined ) {
-
-				// new material
-				material.addEventListener( 'dispose', onMaterialDispose );
-
-			} else if ( program.code !== code ) {
-
-				// changed glsl or parameters
-				releaseMaterialProgramReference( material );
-
-			} else if ( lightsHash.stateID !== lightsStateHash.stateID ||
-				lightsHash.directionalLength !== lightsStateHash.directionalLength ||
-				lightsHash.pointLength !== lightsStateHash.pointLength ||
-				lightsHash.spotLength !== lightsStateHash.spotLength ||
-				lightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||
-				lightsHash.hemiLength !== lightsStateHash.hemiLength ||
-				lightsHash.shadowsLength !== lightsStateHash.shadowsLength ) {
-
-				lightsHash.stateID = lightsStateHash.stateID;
-				lightsHash.directionalLength = lightsStateHash.directionalLength;
-				lightsHash.pointLength = lightsStateHash.pointLength;
-				lightsHash.spotLength = lightsStateHash.spotLength;
-				lightsHash.rectAreaLength = lightsStateHash.rectAreaLength;
-				lightsHash.hemiLength = lightsStateHash.hemiLength;
-				lightsHash.shadowsLength = lightsStateHash.shadowsLength;
-
-				programChange = false;
-
-			} else if ( parameters.shaderID !== undefined ) {
-
-				// same glsl and uniform list
-				return;
-
-			} else {
-
-				// only rebuild uniform list
-				programChange = false;
-
-			}
-
-			if ( programChange ) {
-
-				if ( parameters.shaderID ) {
-
-					var shader = ShaderLib[ parameters.shaderID ];
-
-					materialProperties.shader = {
-						name: material.type,
-						uniforms: cloneUniforms( shader.uniforms ),
-						vertexShader: shader.vertexShader,
-						fragmentShader: shader.fragmentShader
-					};
-
-				} else {
-
-					materialProperties.shader = {
-						name: material.type,
-						uniforms: material.uniforms,
-						vertexShader: material.vertexShader,
-						fragmentShader: material.fragmentShader
-					};
-
-				}
-
-				material.onBeforeCompile( materialProperties.shader, _this );
-
-				// Computing code again as onBeforeCompile may have changed the shaders
-				code = programCache.getProgramCode( material, parameters );
-
-				program = programCache.acquireProgram( material, materialProperties.shader, parameters, code );
-
-				materialProperties.program = program;
-				material.program = program;
-
-			}
-
-			var programAttributes = program.getAttributes();
-
-			if ( material.morphTargets ) {
-
-				material.numSupportedMorphTargets = 0;
-
-				for ( var i = 0; i < _this.maxMorphTargets; i ++ ) {
-
-					if ( programAttributes[ 'morphTarget' + i ] >= 0 ) {
-
-						material.numSupportedMorphTargets ++;
-
-					}
-
-				}
-
-			}
-
-			if ( material.morphNormals ) {
-
-				material.numSupportedMorphNormals = 0;
-
-				for ( var i = 0; i < _this.maxMorphNormals; i ++ ) {
-
-					if ( programAttributes[ 'morphNormal' + i ] >= 0 ) {
-
-						material.numSupportedMorphNormals ++;
-
-					}
-
-				}
-
-			}
-
-			var uniforms = materialProperties.shader.uniforms;
-
-			if ( ! material.isShaderMaterial &&
-				! material.isRawShaderMaterial ||
-				material.clipping === true ) {
-
-				materialProperties.numClippingPlanes = _clipping.numPlanes;
-				materialProperties.numIntersection = _clipping.numIntersection;
-				uniforms.clippingPlanes = _clipping.uniform;
-
-			}
-
-			materialProperties.fog = fog;
-
-			// store the light setup it was created for
-			if ( lightsHash === undefined ) {
-
-				materialProperties.lightsHash = lightsHash = {};
-
-			}
-
-			lightsHash.stateID = lightsStateHash.stateID;
-			lightsHash.directionalLength = lightsStateHash.directionalLength;
-			lightsHash.pointLength = lightsStateHash.pointLength;
-			lightsHash.spotLength = lightsStateHash.spotLength;
-			lightsHash.rectAreaLength = lightsStateHash.rectAreaLength;
-			lightsHash.hemiLength = lightsStateHash.hemiLength;
-			lightsHash.shadowsLength = lightsStateHash.shadowsLength;
-
-			if ( material.lights ) {
-
-				// wire up the material to this renderer's lighting state
-
-				uniforms.ambientLightColor.value = lights.state.ambient;
-				uniforms.lightProbe.value = lights.state.probe;
-				uniforms.directionalLights.value = lights.state.directional;
-				uniforms.spotLights.value = lights.state.spot;
-				uniforms.rectAreaLights.value = lights.state.rectArea;
-				uniforms.pointLights.value = lights.state.point;
-				uniforms.hemisphereLights.value = lights.state.hemi;
-
-				uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
-				uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
-				uniforms.spotShadowMap.value = lights.state.spotShadowMap;
-				uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;
-				uniforms.pointShadowMap.value = lights.state.pointShadowMap;
-				uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;
-				// TODO (abelnation): add area lights shadow info to uniforms
-
-			}
-
-			var progUniforms = materialProperties.program.getUniforms(),
-				uniformsList =
-					WebGLUniforms.seqWithValue( progUniforms.seq, uniforms );
-
-			materialProperties.uniformsList = uniformsList;
-
-		}
-
-		function setProgram( camera, fog, material, object ) {
-
-			textures.resetTextureUnits();
-
-			var materialProperties = properties.get( material );
-			var lights = currentRenderState.state.lights;
-
-			var lightsHash = materialProperties.lightsHash;
-			var lightsStateHash = lights.state.hash;
-
-			if ( _clippingEnabled ) {
-
-				if ( _localClippingEnabled || camera !== _currentCamera ) {
-
-					var useCache =
-						camera === _currentCamera &&
-						material.id === _currentMaterialId;
-
-					// we might want to call this function with some ClippingGroup
-					// object instead of the material, once it becomes feasible
-					// (#8465, #8379)
-					_clipping.setState(
-						material.clippingPlanes, material.clipIntersection, material.clipShadows,
-						camera, materialProperties, useCache );
-
-				}
-
-			}
-
-			if ( material.needsUpdate === false ) {
-
-				if ( materialProperties.program === undefined ) {
-
-					material.needsUpdate = true;
-
-				} else if ( material.fog && materialProperties.fog !== fog ) {
-
-					material.needsUpdate = true;
-
-				} else if ( material.lights && ( lightsHash.stateID !== lightsStateHash.stateID ||
-					lightsHash.directionalLength !== lightsStateHash.directionalLength ||
-					lightsHash.pointLength !== lightsStateHash.pointLength ||
-					lightsHash.spotLength !== lightsStateHash.spotLength ||
-					lightsHash.rectAreaLength !== lightsStateHash.rectAreaLength ||
-					lightsHash.hemiLength !== lightsStateHash.hemiLength ||
-					lightsHash.shadowsLength !== lightsStateHash.shadowsLength ) ) {
-
-					material.needsUpdate = true;
-
-				} else if ( materialProperties.numClippingPlanes !== undefined &&
-					( materialProperties.numClippingPlanes !== _clipping.numPlanes ||
-					materialProperties.numIntersection !== _clipping.numIntersection ) ) {
-
-					material.needsUpdate = true;
-
-				}
-
-			}
-
-			if ( material.needsUpdate ) {
-
-				initMaterial( material, fog, object );
-				material.needsUpdate = false;
-
-			}
-
-			var refreshProgram = false;
-			var refreshMaterial = false;
-			var refreshLights = false;
-
-			var program = materialProperties.program,
-				p_uniforms = program.getUniforms(),
-				m_uniforms = materialProperties.shader.uniforms;
-
-			if ( state.useProgram( program.program ) ) {
-
-				refreshProgram = true;
-				refreshMaterial = true;
-				refreshLights = true;
-
-			}
-
-			if ( material.id !== _currentMaterialId ) {
-
-				_currentMaterialId = material.id;
-
-				refreshMaterial = true;
-
-			}
-
-			if ( refreshProgram || _currentCamera !== camera ) {
-
-				p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );
-
-				if ( capabilities.logarithmicDepthBuffer ) {
-
-					p_uniforms.setValue( _gl, 'logDepthBufFC',
-						2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );
-
-				}
-
-				if ( _currentCamera !== camera ) {
-
-					_currentCamera = camera;
-
-					// lighting uniforms depend on the camera so enforce an update
-					// now, in case this material supports lights - or later, when
-					// the next material that does gets activated:
-
-					refreshMaterial = true;		// set to true on material change
-					refreshLights = true;		// remains set until update done
-
-				}
-
-				// load material specific uniforms
-				// (shader material also gets them for the sake of genericity)
-
-				if ( material.isShaderMaterial ||
-					material.isMeshPhongMaterial ||
-					material.isMeshStandardMaterial ||
-					material.envMap ) {
-
-					var uCamPos = p_uniforms.map.cameraPosition;
-
-					if ( uCamPos !== undefined ) {
-
-						uCamPos.setValue( _gl,
-							_vector3.setFromMatrixPosition( camera.matrixWorld ) );
-
-					}
-
-				}
-
-				if ( material.isMeshPhongMaterial ||
-					material.isMeshLambertMaterial ||
-					material.isMeshBasicMaterial ||
-					material.isMeshStandardMaterial ||
-					material.isShaderMaterial ||
-					material.skinning ) {
-
-					p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );
-
-				}
-
-			}
-
-			// skinning uniforms must be set even if material didn't change
-			// auto-setting of texture unit for bone texture must go before other textures
-			// not sure why, but otherwise weird things happen
-
-			if ( material.skinning ) {
-
-				p_uniforms.setOptional( _gl, object, 'bindMatrix' );
-				p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );
-
-				var skeleton = object.skeleton;
-
-				if ( skeleton ) {
-
-					var bones = skeleton.bones;
-
-					if ( capabilities.floatVertexTextures ) {
-
-						if ( skeleton.boneTexture === undefined ) {
-
-							// layout (1 matrix = 4 pixels)
-							//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
-							//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
-							//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
-							//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
-							//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)
-
-
-							var size = Math.sqrt( bones.length * 4 ); // 4 pixels needed for 1 matrix
-							size = _Math.ceilPowerOfTwo( size );
-							size = Math.max( size, 4 );
-
-							var boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel
-							boneMatrices.set( skeleton.boneMatrices ); // copy current values
-
-							var boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );
-							boneTexture.needsUpdate = true;
-
-							skeleton.boneMatrices = boneMatrices;
-							skeleton.boneTexture = boneTexture;
-							skeleton.boneTextureSize = size;
-
-						}
-
-						p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture, textures );
-						p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );
-
-					} else {
-
-						p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );
-
-					}
-
-				}
-
-			}
-
-			if ( refreshMaterial ) {
-
-				p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );
-				p_uniforms.setValue( _gl, 'toneMappingWhitePoint', _this.toneMappingWhitePoint );
-
-				if ( material.lights ) {
-
-					// the current material requires lighting info
-
-					// note: all lighting uniforms are always set correctly
-					// they simply reference the renderer's state for their
-					// values
-					//
-					// use the current material's .needsUpdate flags to set
-					// the GL state when required
-
-					markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );
-
-				}
-
-				// refresh uniforms common to several materials
-
-				if ( fog && material.fog ) {
-
-					refreshUniformsFog( m_uniforms, fog );
-
-				}
-
-				if ( material.isMeshBasicMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-
-				} else if ( material.isMeshLambertMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-					refreshUniformsLambert( m_uniforms, material );
-
-				} else if ( material.isMeshPhongMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-
-					if ( material.isMeshToonMaterial ) {
-
-						refreshUniformsToon( m_uniforms, material );
-
-					} else {
-
-						refreshUniformsPhong( m_uniforms, material );
-
-					}
-
-				} else if ( material.isMeshStandardMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-
-					if ( material.isMeshPhysicalMaterial ) {
-
-						refreshUniformsPhysical( m_uniforms, material );
-
-					} else {
-
-						refreshUniformsStandard( m_uniforms, material );
-
-					}
-
-				} else if ( material.isMeshMatcapMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-
-					refreshUniformsMatcap( m_uniforms, material );
-
-				} else if ( material.isMeshDepthMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-					refreshUniformsDepth( m_uniforms, material );
-
-				} else if ( material.isMeshDistanceMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-					refreshUniformsDistance( m_uniforms, material );
-
-				} else if ( material.isMeshNormalMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-					refreshUniformsNormal( m_uniforms, material );
-
-				} else if ( material.isLineBasicMaterial ) {
-
-					refreshUniformsLine( m_uniforms, material );
-
-					if ( material.isLineDashedMaterial ) {
-
-						refreshUniformsDash( m_uniforms, material );
-
-					}
-
-				} else if ( material.isPointsMaterial ) {
-
-					refreshUniformsPoints( m_uniforms, material );
-
-				} else if ( material.isSpriteMaterial ) {
-
-					refreshUniformsSprites( m_uniforms, material );
-
-				} else if ( material.isShadowMaterial ) {
-
-					m_uniforms.color.value.copy( material.color );
-					m_uniforms.opacity.value = material.opacity;
-
-				}
-
-				// RectAreaLight Texture
-				// TODO (mrdoob): Find a nicer implementation
-
-				if ( m_uniforms.ltc_1 !== undefined ) m_uniforms.ltc_1.value = UniformsLib.LTC_1;
-				if ( m_uniforms.ltc_2 !== undefined ) m_uniforms.ltc_2.value = UniformsLib.LTC_2;
-
-				WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures );
-
-			}
-
-			if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {
-
-				WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures );
-				material.uniformsNeedUpdate = false;
-
-			}
-
-			if ( material.isSpriteMaterial ) {
-
-				p_uniforms.setValue( _gl, 'center', object.center );
-
-			}
-
-			// common matrices
-
-			p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );
-			p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );
-			p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );
-
-			return program;
-
-		}
-
-		// Uniforms (refresh uniforms objects)
-
-		function refreshUniformsCommon( uniforms, material ) {
-
-			uniforms.opacity.value = material.opacity;
-
-			if ( material.color ) {
-
-				uniforms.diffuse.value.copy( material.color );
-
-			}
-
-			if ( material.emissive ) {
-
-				uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );
-
-			}
-
-			if ( material.map ) {
-
-				uniforms.map.value = material.map;
-
-			}
-
-			if ( material.alphaMap ) {
-
-				uniforms.alphaMap.value = material.alphaMap;
-
-			}
-
-			if ( material.specularMap ) {
-
-				uniforms.specularMap.value = material.specularMap;
-
-			}
-
-			if ( material.envMap ) {
-
-				uniforms.envMap.value = material.envMap;
-
-				// don't flip CubeTexture envMaps, flip everything else:
-				//  WebGLRenderTargetCube will be flipped for backwards compatibility
-				//  WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture
-				// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future
-				uniforms.flipEnvMap.value = material.envMap.isCubeTexture ? - 1 : 1;
-
-				uniforms.reflectivity.value = material.reflectivity;
-				uniforms.refractionRatio.value = material.refractionRatio;
-
-				uniforms.maxMipLevel.value = properties.get( material.envMap ).__maxMipLevel;
-
-			}
-
-			if ( material.lightMap ) {
-
-				uniforms.lightMap.value = material.lightMap;
-				uniforms.lightMapIntensity.value = material.lightMapIntensity;
-
-			}
-
-			if ( material.aoMap ) {
-
-				uniforms.aoMap.value = material.aoMap;
-				uniforms.aoMapIntensity.value = material.aoMapIntensity;
-
-			}
-
-			// uv repeat and offset setting priorities
-			// 1. color map
-			// 2. specular map
-			// 3. normal map
-			// 4. bump map
-			// 5. alpha map
-			// 6. emissive map
-
-			var uvScaleMap;
-
-			if ( material.map ) {
-
-				uvScaleMap = material.map;
-
-			} else if ( material.specularMap ) {
-
-				uvScaleMap = material.specularMap;
-
-			} else if ( material.displacementMap ) {
-
-				uvScaleMap = material.displacementMap;
-
-			} else if ( material.normalMap ) {
-
-				uvScaleMap = material.normalMap;
-
-			} else if ( material.bumpMap ) {
-
-				uvScaleMap = material.bumpMap;
-
-			} else if ( material.roughnessMap ) {
-
-				uvScaleMap = material.roughnessMap;
-
-			} else if ( material.metalnessMap ) {
-
-				uvScaleMap = material.metalnessMap;
-
-			} else if ( material.alphaMap ) {
-
-				uvScaleMap = material.alphaMap;
-
-			} else if ( material.emissiveMap ) {
-
-				uvScaleMap = material.emissiveMap;
-
-			}
-
-			if ( uvScaleMap !== undefined ) {
-
-				// backwards compatibility
-				if ( uvScaleMap.isWebGLRenderTarget ) {
-
-					uvScaleMap = uvScaleMap.texture;
-
-				}
-
-				if ( uvScaleMap.matrixAutoUpdate === true ) {
-
-					uvScaleMap.updateMatrix();
-
-				}
-
-				uniforms.uvTransform.value.copy( uvScaleMap.matrix );
-
-			}
-
-		}
-
-		function refreshUniformsLine( uniforms, material ) {
-
-			uniforms.diffuse.value.copy( material.color );
-			uniforms.opacity.value = material.opacity;
-
-		}
-
-		function refreshUniformsDash( uniforms, material ) {
-
-			uniforms.dashSize.value = material.dashSize;
-			uniforms.totalSize.value = material.dashSize + material.gapSize;
-			uniforms.scale.value = material.scale;
-
-		}
-
-		function refreshUniformsPoints( uniforms, material ) {
-
-			uniforms.diffuse.value.copy( material.color );
-			uniforms.opacity.value = material.opacity;
-			uniforms.size.value = material.size * _pixelRatio;
-			uniforms.scale.value = _height * 0.5;
-
-			uniforms.map.value = material.map;
-
-			if ( material.map !== null ) {
-
-				if ( material.map.matrixAutoUpdate === true ) {
-
-					material.map.updateMatrix();
-
-				}
-
-				uniforms.uvTransform.value.copy( material.map.matrix );
-
-			}
-
-		}
-
-		function refreshUniformsSprites( uniforms, material ) {
-
-			uniforms.diffuse.value.copy( material.color );
-			uniforms.opacity.value = material.opacity;
-			uniforms.rotation.value = material.rotation;
-			uniforms.map.value = material.map;
-
-			if ( material.map !== null ) {
-
-				if ( material.map.matrixAutoUpdate === true ) {
-
-					material.map.updateMatrix();
-
-				}
-
-				uniforms.uvTransform.value.copy( material.map.matrix );
-
-			}
-
-		}
-
-		function refreshUniformsFog( uniforms, fog ) {
-
-			uniforms.fogColor.value.copy( fog.color );
-
-			if ( fog.isFog ) {
-
-				uniforms.fogNear.value = fog.near;
-				uniforms.fogFar.value = fog.far;
-
-			} else if ( fog.isFogExp2 ) {
-
-				uniforms.fogDensity.value = fog.density;
-
-			}
-
-		}
-
-		function refreshUniformsLambert( uniforms, material ) {
-
-			if ( material.emissiveMap ) {
-
-				uniforms.emissiveMap.value = material.emissiveMap;
-
-			}
-
-		}
-
-		function refreshUniformsPhong( uniforms, material ) {
-
-			uniforms.specular.value.copy( material.specular );
-			uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )
-
-			if ( material.emissiveMap ) {
-
-				uniforms.emissiveMap.value = material.emissiveMap;
-
-			}
-
-			if ( material.bumpMap ) {
-
-				uniforms.bumpMap.value = material.bumpMap;
-				uniforms.bumpScale.value = material.bumpScale;
-				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;
-
-			}
-
-			if ( material.normalMap ) {
-
-				uniforms.normalMap.value = material.normalMap;
-				uniforms.normalScale.value.copy( material.normalScale );
-				if ( material.side === BackSide ) uniforms.normalScale.value.negate();
-
-			}
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-		}
-
-		function refreshUniformsToon( uniforms, material ) {
-
-			refreshUniformsPhong( uniforms, material );
-
-			if ( material.gradientMap ) {
-
-				uniforms.gradientMap.value = material.gradientMap;
-
-			}
-
-		}
-
-		function refreshUniformsStandard( uniforms, material ) {
-
-			uniforms.roughness.value = material.roughness;
-			uniforms.metalness.value = material.metalness;
-
-			if ( material.roughnessMap ) {
-
-				uniforms.roughnessMap.value = material.roughnessMap;
-
-			}
-
-			if ( material.metalnessMap ) {
-
-				uniforms.metalnessMap.value = material.metalnessMap;
-
-			}
-
-			if ( material.emissiveMap ) {
-
-				uniforms.emissiveMap.value = material.emissiveMap;
-
-			}
-
-			if ( material.bumpMap ) {
-
-				uniforms.bumpMap.value = material.bumpMap;
-				uniforms.bumpScale.value = material.bumpScale;
-				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;
-
-			}
-
-			if ( material.normalMap ) {
-
-				uniforms.normalMap.value = material.normalMap;
-				uniforms.normalScale.value.copy( material.normalScale );
-				if ( material.side === BackSide ) uniforms.normalScale.value.negate();
-
-			}
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-			if ( material.envMap ) {
-
-				//uniforms.envMap.value = material.envMap; // part of uniforms common
-				uniforms.envMapIntensity.value = material.envMapIntensity;
-
-			}
-
-		}
-
-		function refreshUniformsPhysical( uniforms, material ) {
-
-			refreshUniformsStandard( uniforms, material );
-
-			uniforms.reflectivity.value = material.reflectivity; // also part of uniforms common
-
-			uniforms.clearCoat.value = material.clearCoat;
-			uniforms.clearCoatRoughness.value = material.clearCoatRoughness;
-
-		}
-
-		function refreshUniformsMatcap( uniforms, material ) {
-
-			if ( material.matcap ) {
-
-				uniforms.matcap.value = material.matcap;
-
-			}
-
-			if ( material.bumpMap ) {
-
-				uniforms.bumpMap.value = material.bumpMap;
-				uniforms.bumpScale.value = material.bumpScale;
-				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;
-
-			}
-
-			if ( material.normalMap ) {
-
-				uniforms.normalMap.value = material.normalMap;
-				uniforms.normalScale.value.copy( material.normalScale );
-				if ( material.side === BackSide ) uniforms.normalScale.value.negate();
-
-			}
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-		}
-
-		function refreshUniformsDepth( uniforms, material ) {
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-		}
-
-		function refreshUniformsDistance( uniforms, material ) {
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-			uniforms.referencePosition.value.copy( material.referencePosition );
-			uniforms.nearDistance.value = material.nearDistance;
-			uniforms.farDistance.value = material.farDistance;
-
-		}
-
-		function refreshUniformsNormal( uniforms, material ) {
-
-			if ( material.bumpMap ) {
-
-				uniforms.bumpMap.value = material.bumpMap;
-				uniforms.bumpScale.value = material.bumpScale;
-				if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1;
-
-			}
-
-			if ( material.normalMap ) {
-
-				uniforms.normalMap.value = material.normalMap;
-				uniforms.normalScale.value.copy( material.normalScale );
-				if ( material.side === BackSide ) uniforms.normalScale.value.negate();
-
-			}
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-		}
-
-		// If uniforms are marked as clean, they don't need to be loaded to the GPU.
-
-		function markUniformsLightsNeedsUpdate( uniforms, value ) {
-
-			uniforms.ambientLightColor.needsUpdate = value;
-			uniforms.lightProbe.needsUpdate = value;
-
-			uniforms.directionalLights.needsUpdate = value;
-			uniforms.pointLights.needsUpdate = value;
-			uniforms.spotLights.needsUpdate = value;
-			uniforms.rectAreaLights.needsUpdate = value;
-			uniforms.hemisphereLights.needsUpdate = value;
-
-		}
-
-		//
-		this.setFramebuffer = function ( value ) {
-
-			if ( _framebuffer !== value ) _gl.bindFramebuffer( 36160, value );
-
-			_framebuffer = value;
-
-		};
-
-		this.getActiveCubeFace = function () {
-
-			return _currentActiveCubeFace;
-
-		};
-
-		this.getActiveMipMapLevel = function () {
-
-			return _currentActiveMipmapLevel;
-
-		};
-
-		this.getRenderTarget = function () {
-
-			return _currentRenderTarget;
-
-		};
-
-		this.setRenderTarget = function ( renderTarget, activeCubeFace, activeMipMapLevel ) {
-
-			_currentRenderTarget = renderTarget;
-			_currentActiveCubeFace = activeCubeFace;
-			_currentActiveMipmapLevel = activeMipMapLevel;
-
-			if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {
-
-				textures.setupRenderTarget( renderTarget );
-
-			}
-
-			var framebuffer = _framebuffer;
-			var isCube = false;
-
-			if ( renderTarget ) {
-
-				var __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;
-
-				if ( renderTarget.isWebGLRenderTargetCube ) {
-
-					framebuffer = __webglFramebuffer[ activeCubeFace || 0 ];
-					isCube = true;
-
-				} else if ( renderTarget.isWebGLMultisampleRenderTarget ) {
-
-					framebuffer = properties.get( renderTarget ).__webglMultisampledFramebuffer;
-
-				} else {
-
-					framebuffer = __webglFramebuffer;
-
-				}
-
-				_currentViewport.copy( renderTarget.viewport );
-				_currentScissor.copy( renderTarget.scissor );
-				_currentScissorTest = renderTarget.scissorTest;
-
-			} else {
-
-				_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio );
-				_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio );
-				_currentScissorTest = _scissorTest;
-
-			}
-
-			if ( _currentFramebuffer !== framebuffer ) {
-
-				_gl.bindFramebuffer( 36160, framebuffer );
-				_currentFramebuffer = framebuffer;
-
-			}
-
-			state.viewport( _currentViewport );
-			state.scissor( _currentScissor );
-			state.setScissorTest( _currentScissorTest );
-
-			if ( isCube ) {
-
-				var textureProperties = properties.get( renderTarget.texture );
-				_gl.framebufferTexture2D( 36160, 36064, 34069 + ( activeCubeFace || 0 ), textureProperties.__webglTexture, activeMipMapLevel || 0 );
-
-			}
-
-		};
-
-		this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer, activeCubeFaceIndex ) {
-
-			if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {
-
-				console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
-				return;
-
-			}
-
-			var framebuffer = properties.get( renderTarget ).__webglFramebuffer;
-
-			if ( renderTarget.isWebGLRenderTargetCube && activeCubeFaceIndex !== undefined ) {
-
-				framebuffer = framebuffer[ activeCubeFaceIndex ];
-
-			}
-
-			if ( framebuffer ) {
-
-				var restore = false;
-
-				if ( framebuffer !== _currentFramebuffer ) {
-
-					_gl.bindFramebuffer( 36160, framebuffer );
-
-					restore = true;
-
-				}
-
-				try {
-
-					var texture = renderTarget.texture;
-					var textureFormat = texture.format;
-					var textureType = texture.type;
-
-					if ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( 35739 ) ) {
-
-						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
-						return;
-
-					}
-
-					if ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( 35738 ) && // IE11, Edge and Chrome Mac < 52 (#9513)
-						! ( textureType === FloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox
-						! ( textureType === HalfFloatType && ( capabilities.isWebGL2 ? extensions.get( 'EXT_color_buffer_float' ) : extensions.get( 'EXT_color_buffer_half_float' ) ) ) ) {
-
-						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
-						return;
-
-					}
-
-					if ( _gl.checkFramebufferStatus( 36160 ) === 36053 ) {
-
-						// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)
-
-						if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {
-
-							_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );
-
-						}
-
-					} else {
-
-						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );
-
-					}
-
-				} finally {
-
-					if ( restore ) {
-
-						_gl.bindFramebuffer( 36160, _currentFramebuffer );
-
-					}
-
-				}
-
-			}
-
-		};
-
-		this.copyFramebufferToTexture = function ( position, texture, level ) {
-
-			var width = texture.image.width;
-			var height = texture.image.height;
-			var glFormat = utils.convert( texture.format );
-
-			textures.setTexture2D( texture, 0 );
-
-			_gl.copyTexImage2D( 3553, level || 0, glFormat, position.x, position.y, width, height, 0 );
-
-		};
-
-		this.copyTextureToTexture = function ( position, srcTexture, dstTexture, level ) {
-
-			var width = srcTexture.image.width;
-			var height = srcTexture.image.height;
-			var glFormat = utils.convert( dstTexture.format );
-			var glType = utils.convert( dstTexture.type );
-
-			textures.setTexture2D( dstTexture, 0 );
-
-			if ( srcTexture.isDataTexture ) {
-
-				_gl.texSubImage2D( 3553, level || 0, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data );
-
-			} else {
-
-				_gl.texSubImage2D( 3553, level || 0, position.x, position.y, glFormat, glType, srcTexture.image );
-
-			}
-
-		};
-
-		/*
-		if ( typeof __THREE_DEVTOOLS__ !== undefined ) {
-			__THREE_DEVTOOLS__.dispatchEvent( { type: 'renderer', value: this } );
-		}
-		*/
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function FogExp2( color, density ) {
-
-		this.name = '';
-
-		this.color = new Color( color );
-		this.density = ( density !== undefined ) ? density : 0.00025;
-
-	}
-
-	Object.assign( FogExp2.prototype, {
-
-		isFogExp2: true,
-
-		clone: function () {
-
-			return new FogExp2( this.color, this.density );
-
-		},
-
-		toJSON: function ( /* meta */ ) {
-
-			return {
-				type: 'FogExp2',
-				color: this.color.getHex(),
-				density: this.density
-			};
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Fog( color, near, far ) {
-
-		this.name = '';
-
-		this.color = new Color( color );
-
-		this.near = ( near !== undefined ) ? near : 1;
-		this.far = ( far !== undefined ) ? far : 1000;
-
-	}
-
-	Object.assign( Fog.prototype, {
-
-		isFog: true,
-
-		clone: function () {
-
-			return new Fog( this.color, this.near, this.far );
-
-		},
-
-		toJSON: function ( /* meta */ ) {
-
-			return {
-				type: 'Fog',
-				color: this.color.getHex(),
-				near: this.near,
-				far: this.far
-			};
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Scene() {
-
-		Object3D.call( this );
-
-		this.type = 'Scene';
-
-		this.background = null;
-		this.fog = null;
-		this.overrideMaterial = null;
-
-		this.autoUpdate = true; // checked by the renderer
-
-		/*
-		if ( typeof __THREE_DEVTOOLS__ !== undefined ) {
-			__THREE_DEVTOOLS__.dispatchEvent( { type: 'scene', value: this } );
-		}
-		*/
-
-	}
-
-	Scene.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Scene,
-
-		isScene: true,
-
-		copy: function ( source, recursive ) {
-
-			Object3D.prototype.copy.call( this, source, recursive );
-
-			if ( source.background !== null ) this.background = source.background.clone();
-			if ( source.fog !== null ) this.fog = source.fog.clone();
-			if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();
-
-			this.autoUpdate = source.autoUpdate;
-			this.matrixAutoUpdate = source.matrixAutoUpdate;
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			if ( this.background !== null ) data.object.background = this.background.toJSON( meta );
-			if ( this.fog !== null ) data.object.fog = this.fog.toJSON();
-
-			return data;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		}
-
-	} );
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InterleavedBuffer( array, stride ) {
-
-		this.array = array;
-		this.stride = stride;
-		this.count = array !== undefined ? array.length / stride : 0;
-
-		this.dynamic = false;
-		this.updateRange = { offset: 0, count: - 1 };
-
-		this.version = 0;
-
-	}
-
-	Object.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {
-
-		set: function ( value ) {
-
-			if ( value === true ) this.version ++;
-
-		}
-
-	} );
-
-	Object.assign( InterleavedBuffer.prototype, {
-
-		isInterleavedBuffer: true,
-
-		onUploadCallback: function () {},
-
-		setArray: function ( array ) {
-
-			if ( Array.isArray( array ) ) {
-
-				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
-
-			}
-
-			this.count = array !== undefined ? array.length / this.stride : 0;
-			this.array = array;
-
-			return this;
-
-		},
-
-		setDynamic: function ( value ) {
-
-			this.dynamic = value;
-
-			return this;
-
-		},
-
-		copy: function ( source ) {
-
-			this.array = new source.array.constructor( source.array );
-			this.count = source.count;
-			this.stride = source.stride;
-			this.dynamic = source.dynamic;
-
-			return this;
-
-		},
-
-		copyAt: function ( index1, attribute, index2 ) {
-
-			index1 *= this.stride;
-			index2 *= attribute.stride;
-
-			for ( var i = 0, l = this.stride; i < l; i ++ ) {
-
-				this.array[ index1 + i ] = attribute.array[ index2 + i ];
-
-			}
-
-			return this;
-
-		},
-
-		set: function ( value, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.array.set( value, offset );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		onUpload: function ( callback ) {
-
-			this.onUploadCallback = callback;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) {
-
-		this.data = interleavedBuffer;
-		this.itemSize = itemSize;
-		this.offset = offset;
-
-		this.normalized = normalized === true;
-
-	}
-
-	Object.defineProperties( InterleavedBufferAttribute.prototype, {
-
-		count: {
-
-			get: function () {
-
-				return this.data.count;
-
-			}
-
-		},
-
-		array: {
-
-			get: function () {
-
-				return this.data.array;
-
-			}
-
-		}
-
-	} );
-
-	Object.assign( InterleavedBufferAttribute.prototype, {
-
-		isInterleavedBufferAttribute: true,
-
-		setX: function ( index, x ) {
-
-			this.data.array[ index * this.data.stride + this.offset ] = x;
-
-			return this;
-
-		},
-
-		setY: function ( index, y ) {
-
-			this.data.array[ index * this.data.stride + this.offset + 1 ] = y;
-
-			return this;
-
-		},
-
-		setZ: function ( index, z ) {
-
-			this.data.array[ index * this.data.stride + this.offset + 2 ] = z;
-
-			return this;
-
-		},
-
-		setW: function ( index, w ) {
-
-			this.data.array[ index * this.data.stride + this.offset + 3 ] = w;
-
-			return this;
-
-		},
-
-		getX: function ( index ) {
-
-			return this.data.array[ index * this.data.stride + this.offset ];
-
-		},
-
-		getY: function ( index ) {
-
-			return this.data.array[ index * this.data.stride + this.offset + 1 ];
-
-		},
-
-		getZ: function ( index ) {
-
-			return this.data.array[ index * this.data.stride + this.offset + 2 ];
-
-		},
-
-		getW: function ( index ) {
-
-			return this.data.array[ index * this.data.stride + this.offset + 3 ];
-
-		},
-
-		setXY: function ( index, x, y ) {
-
-			index = index * this.data.stride + this.offset;
-
-			this.data.array[ index + 0 ] = x;
-			this.data.array[ index + 1 ] = y;
-
-			return this;
-
-		},
-
-		setXYZ: function ( index, x, y, z ) {
-
-			index = index * this.data.stride + this.offset;
-
-			this.data.array[ index + 0 ] = x;
-			this.data.array[ index + 1 ] = y;
-			this.data.array[ index + 2 ] = z;
-
-			return this;
-
-		},
-
-		setXYZW: function ( index, x, y, z, w ) {
-
-			index = index * this.data.stride + this.offset;
-
-			this.data.array[ index + 0 ] = x;
-			this.data.array[ index + 1 ] = y;
-			this.data.array[ index + 2 ] = z;
-			this.data.array[ index + 3 ] = w;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  map: new THREE.Texture( <Image> ),
-	 *  rotation: <float>,
-	 *  sizeAttenuation: <bool>
-	 * }
-	 */
-
-	function SpriteMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'SpriteMaterial';
-
-		this.color = new Color( 0xffffff );
-		this.map = null;
-
-		this.rotation = 0;
-
-		this.sizeAttenuation = true;
-
-		this.lights = false;
-		this.transparent = true;
-
-		this.setValues( parameters );
-
-	}
-
-	SpriteMaterial.prototype = Object.create( Material.prototype );
-	SpriteMaterial.prototype.constructor = SpriteMaterial;
-	SpriteMaterial.prototype.isSpriteMaterial = true;
-
-	SpriteMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-		this.map = source.map;
-
-		this.rotation = source.rotation;
-
-		this.sizeAttenuation = source.sizeAttenuation;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	var geometry;
-
-	function Sprite( material ) {
-
-		Object3D.call( this );
-
-		this.type = 'Sprite';
-
-		if ( geometry === undefined ) {
-
-			geometry = new BufferGeometry();
-
-			var float32Array = new Float32Array( [
-				- 0.5, - 0.5, 0, 0, 0,
-				0.5, - 0.5, 0, 1, 0,
-				0.5, 0.5, 0, 1, 1,
-				- 0.5, 0.5, 0, 0, 1
-			] );
-
-			var interleavedBuffer = new InterleavedBuffer( float32Array, 5 );
-
-			geometry.setIndex( [ 0, 1, 2,	0, 2, 3 ] );
-			geometry.addAttribute( 'position', new InterleavedBufferAttribute( interleavedBuffer, 3, 0, false ) );
-			geometry.addAttribute( 'uv', new InterleavedBufferAttribute( interleavedBuffer, 2, 3, false ) );
-
-		}
-
-		this.geometry = geometry;
-		this.material = ( material !== undefined ) ? material : new SpriteMaterial();
-
-		this.center = new Vector2( 0.5, 0.5 );
-
-	}
-
-	Sprite.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Sprite,
-
-		isSprite: true,
-
-		raycast: ( function () {
-
-			var intersectPoint = new Vector3();
-			var worldScale = new Vector3();
-			var mvPosition = new Vector3();
-
-			var alignedPosition = new Vector2();
-			var rotatedPosition = new Vector2();
-			var viewWorldMatrix = new Matrix4();
-
-			var vA = new Vector3();
-			var vB = new Vector3();
-			var vC = new Vector3();
-
-			var uvA = new Vector2();
-			var uvB = new Vector2();
-			var uvC = new Vector2();
-
-			function transformVertex( vertexPosition, mvPosition, center, scale, sin, cos ) {
-
-				// compute position in camera space
-				alignedPosition.subVectors( vertexPosition, center ).addScalar( 0.5 ).multiply( scale );
-
-				// to check if rotation is not zero
-				if ( sin !== undefined ) {
-
-					rotatedPosition.x = ( cos * alignedPosition.x ) - ( sin * alignedPosition.y );
-					rotatedPosition.y = ( sin * alignedPosition.x ) + ( cos * alignedPosition.y );
-
-				} else {
-
-					rotatedPosition.copy( alignedPosition );
-
-				}
-
-
-				vertexPosition.copy( mvPosition );
-				vertexPosition.x += rotatedPosition.x;
-				vertexPosition.y += rotatedPosition.y;
-
-				// transform to world space
-				vertexPosition.applyMatrix4( viewWorldMatrix );
-
-			}
-
-			return function raycast( raycaster, intersects ) {
-
-				worldScale.setFromMatrixScale( this.matrixWorld );
-				viewWorldMatrix.getInverse( this.modelViewMatrix ).premultiply( this.matrixWorld );
-				mvPosition.setFromMatrixPosition( this.modelViewMatrix );
-
-				var rotation = this.material.rotation;
-				var sin, cos;
-				if ( rotation !== 0 ) {
-
-					cos = Math.cos( rotation );
-					sin = Math.sin( rotation );
-
-				}
-
-				var center = this.center;
-
-				transformVertex( vA.set( - 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
-				transformVertex( vB.set( 0.5, - 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
-				transformVertex( vC.set( 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
-
-				uvA.set( 0, 0 );
-				uvB.set( 1, 0 );
-				uvC.set( 1, 1 );
-
-				// check first triangle
-				var intersect = raycaster.ray.intersectTriangle( vA, vB, vC, false, intersectPoint );
-
-				if ( intersect === null ) {
-
-					// check second triangle
-					transformVertex( vB.set( - 0.5, 0.5, 0 ), mvPosition, center, worldScale, sin, cos );
-					uvB.set( 0, 1 );
-
-					intersect = raycaster.ray.intersectTriangle( vA, vC, vB, false, intersectPoint );
-					if ( intersect === null ) {
-
-						return;
-
-					}
-
-				}
-
-				var distance = raycaster.ray.origin.distanceTo( intersectPoint );
-
-				if ( distance < raycaster.near || distance > raycaster.far ) return;
-
-				intersects.push( {
-
-					distance: distance,
-					point: intersectPoint.clone(),
-					uv: Triangle.getUV( intersectPoint, vA, vB, vC, uvA, uvB, uvC, new Vector2() ),
-					face: null,
-					object: this
-
-				} );
-
-			};
-
-		}() ),
-
-		clone: function () {
-
-			return new this.constructor( this.material ).copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			Object3D.prototype.copy.call( this, source );
-
-			if ( source.center !== undefined ) this.center.copy( source.center );
-
-			return this;
-
-		}
-
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function LOD() {
-
-		Object3D.call( this );
-
-		this.type = 'LOD';
-
-		Object.defineProperties( this, {
-			levels: {
-				enumerable: true,
-				value: []
-			}
-		} );
-
-	}
-
-	LOD.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: LOD,
-
-		isLOD: true,
-
-		copy: function ( source ) {
-
-			Object3D.prototype.copy.call( this, source, false );
-
-			var levels = source.levels;
-
-			for ( var i = 0, l = levels.length; i < l; i ++ ) {
-
-				var level = levels[ i ];
-
-				this.addLevel( level.object.clone(), level.distance );
-
-			}
-
-			return this;
-
-		},
-
-		addLevel: function ( object, distance ) {
-
-			if ( distance === undefined ) distance = 0;
-
-			distance = Math.abs( distance );
-
-			var levels = this.levels;
-
-			for ( var l = 0; l < levels.length; l ++ ) {
-
-				if ( distance < levels[ l ].distance ) {
-
-					break;
-
-				}
-
-			}
-
-			levels.splice( l, 0, { distance: distance, object: object } );
-
-			this.add( object );
-
-			return this;
-
-		},
-
-		getObjectForDistance: function ( distance ) {
-
-			var levels = this.levels;
-
-			for ( var i = 1, l = levels.length; i < l; i ++ ) {
-
-				if ( distance < levels[ i ].distance ) {
-
-					break;
-
-				}
-
-			}
-
-			return levels[ i - 1 ].object;
-
-		},
-
-		raycast: ( function () {
-
-			var matrixPosition = new Vector3();
-
-			return function raycast( raycaster, intersects ) {
-
-				matrixPosition.setFromMatrixPosition( this.matrixWorld );
-
-				var distance = raycaster.ray.origin.distanceTo( matrixPosition );
-
-				this.getObjectForDistance( distance ).raycast( raycaster, intersects );
-
-			};
-
-		}() ),
-
-		update: function () {
-
-			var v1 = new Vector3();
-			var v2 = new Vector3();
-
-			return function update( camera ) {
-
-				var levels = this.levels;
-
-				if ( levels.length > 1 ) {
-
-					v1.setFromMatrixPosition( camera.matrixWorld );
-					v2.setFromMatrixPosition( this.matrixWorld );
-
-					var distance = v1.distanceTo( v2 );
-
-					levels[ 0 ].object.visible = true;
-
-					for ( var i = 1, l = levels.length; i < l; i ++ ) {
-
-						if ( distance >= levels[ i ].distance ) {
-
-							levels[ i - 1 ].object.visible = false;
-							levels[ i ].object.visible = true;
-
-						} else {
-
-							break;
-
-						}
-
-					}
-
-					for ( ; i < l; i ++ ) {
-
-						levels[ i ].object.visible = false;
-
-					}
-
-				}
-
-			};
-
-		}(),
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			data.object.levels = [];
-
-			var levels = this.levels;
-
-			for ( var i = 0, l = levels.length; i < l; i ++ ) {
-
-				var level = levels[ i ];
-
-				data.object.levels.push( {
-					object: level.object.uuid,
-					distance: level.distance
-				} );
-
-			}
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author ikerr / http://verold.com
-	 */
-
-	function SkinnedMesh( geometry, material ) {
-
-		if ( geometry && geometry.isGeometry ) {
-
-			console.error( 'THREE.SkinnedMesh no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' );
-
-		}
-
-		Mesh.call( this, geometry, material );
-
-		this.type = 'SkinnedMesh';
-
-		this.bindMode = 'attached';
-		this.bindMatrix = new Matrix4();
-		this.bindMatrixInverse = new Matrix4();
-
-	}
-
-	SkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), {
-
-		constructor: SkinnedMesh,
-
-		isSkinnedMesh: true,
-
-		bind: function ( skeleton, bindMatrix ) {
-
-			this.skeleton = skeleton;
-
-			if ( bindMatrix === undefined ) {
-
-				this.updateMatrixWorld( true );
-
-				this.skeleton.calculateInverses();
-
-				bindMatrix = this.matrixWorld;
-
-			}
-
-			this.bindMatrix.copy( bindMatrix );
-			this.bindMatrixInverse.getInverse( bindMatrix );
-
-		},
-
-		pose: function () {
-
-			this.skeleton.pose();
-
-		},
-
-		normalizeSkinWeights: function () {
-
-			var vector = new Vector4();
-
-			var skinWeight = this.geometry.attributes.skinWeight;
-
-			for ( var i = 0, l = skinWeight.count; i < l; i ++ ) {
-
-				vector.x = skinWeight.getX( i );
-				vector.y = skinWeight.getY( i );
-				vector.z = skinWeight.getZ( i );
-				vector.w = skinWeight.getW( i );
-
-				var scale = 1.0 / vector.manhattanLength();
-
-				if ( scale !== Infinity ) {
-
-					vector.multiplyScalar( scale );
-
-				} else {
-
-					vector.set( 1, 0, 0, 0 ); // do something reasonable
-
-				}
-
-				skinWeight.setXYZW( i, vector.x, vector.y, vector.z, vector.w );
-
-			}
-
-		},
-
-		updateMatrixWorld: function ( force ) {
-
-			Mesh.prototype.updateMatrixWorld.call( this, force );
-
-			if ( this.bindMode === 'attached' ) {
-
-				this.bindMatrixInverse.getInverse( this.matrixWorld );
-
-			} else if ( this.bindMode === 'detached' ) {
-
-				this.bindMatrixInverse.getInverse( this.bindMatrix );
-
-			} else {
-
-				console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );
-
-			}
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.geometry, this.material ).copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author michael guerrero / http://realitymeltdown.com
-	 * @author ikerr / http://verold.com
-	 */
-
-	function Skeleton( bones, boneInverses ) {
-
-		// copy the bone array
-
-		bones = bones || [];
-
-		this.bones = bones.slice( 0 );
-		this.boneMatrices = new Float32Array( this.bones.length * 16 );
-
-		// use the supplied bone inverses or calculate the inverses
-
-		if ( boneInverses === undefined ) {
-
-			this.calculateInverses();
-
-		} else {
-
-			if ( this.bones.length === boneInverses.length ) {
-
-				this.boneInverses = boneInverses.slice( 0 );
-
-			} else {
-
-				console.warn( 'THREE.Skeleton boneInverses is the wrong length.' );
-
-				this.boneInverses = [];
-
-				for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
-
-					this.boneInverses.push( new Matrix4() );
-
-				}
-
-			}
-
-		}
-
-	}
-
-	Object.assign( Skeleton.prototype, {
-
-		calculateInverses: function () {
-
-			this.boneInverses = [];
-
-			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
-
-				var inverse = new Matrix4();
-
-				if ( this.bones[ i ] ) {
-
-					inverse.getInverse( this.bones[ i ].matrixWorld );
-
-				}
-
-				this.boneInverses.push( inverse );
-
-			}
-
-		},
-
-		pose: function () {
-
-			var bone, i, il;
-
-			// recover the bind-time world matrices
-
-			for ( i = 0, il = this.bones.length; i < il; i ++ ) {
-
-				bone = this.bones[ i ];
-
-				if ( bone ) {
-
-					bone.matrixWorld.getInverse( this.boneInverses[ i ] );
-
-				}
-
-			}
-
-			// compute the local matrices, positions, rotations and scales
-
-			for ( i = 0, il = this.bones.length; i < il; i ++ ) {
-
-				bone = this.bones[ i ];
-
-				if ( bone ) {
-
-					if ( bone.parent && bone.parent.isBone ) {
-
-						bone.matrix.getInverse( bone.parent.matrixWorld );
-						bone.matrix.multiply( bone.matrixWorld );
-
-					} else {
-
-						bone.matrix.copy( bone.matrixWorld );
-
-					}
-
-					bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );
-
-				}
-
-			}
-
-		},
-
-		update: ( function () {
-
-			var offsetMatrix = new Matrix4();
-			var identityMatrix = new Matrix4();
-
-			return function update() {
-
-				var bones = this.bones;
-				var boneInverses = this.boneInverses;
-				var boneMatrices = this.boneMatrices;
-				var boneTexture = this.boneTexture;
-
-				// flatten bone matrices to array
-
-				for ( var i = 0, il = bones.length; i < il; i ++ ) {
-
-					// compute the offset between the current and the original transform
-
-					var matrix = bones[ i ] ? bones[ i ].matrixWorld : identityMatrix;
-
-					offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );
-					offsetMatrix.toArray( boneMatrices, i * 16 );
-
-				}
-
-				if ( boneTexture !== undefined ) {
-
-					boneTexture.needsUpdate = true;
-
-				}
-
-			};
-
-		} )(),
-
-		clone: function () {
-
-			return new Skeleton( this.bones, this.boneInverses );
-
-		},
-
-		getBoneByName: function ( name ) {
-
-			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
-
-				var bone = this.bones[ i ];
-
-				if ( bone.name === name ) {
-
-					return bone;
-
-				}
-
-			}
-
-			return undefined;
-
-		}
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author ikerr / http://verold.com
-	 */
-
-	function Bone() {
-
-		Object3D.call( this );
-
-		this.type = 'Bone';
-
-	}
-
-	Bone.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Bone,
-
-		isBone: true
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *
-	 *  linewidth: <float>,
-	 *  linecap: "round",
-	 *  linejoin: "round"
-	 * }
-	 */
-
-	function LineBasicMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'LineBasicMaterial';
-
-		this.color = new Color( 0xffffff );
-
-		this.linewidth = 1;
-		this.linecap = 'round';
-		this.linejoin = 'round';
-
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	LineBasicMaterial.prototype = Object.create( Material.prototype );
-	LineBasicMaterial.prototype.constructor = LineBasicMaterial;
-
-	LineBasicMaterial.prototype.isLineBasicMaterial = true;
-
-	LineBasicMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-
-		this.linewidth = source.linewidth;
-		this.linecap = source.linecap;
-		this.linejoin = source.linejoin;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Line( geometry, material, mode ) {
-
-		if ( mode === 1 ) {
-
-			console.error( 'THREE.Line: parameter THREE.LinePieces no longer supported. Use THREE.LineSegments instead.' );
-
-		}
-
-		Object3D.call( this );
-
-		this.type = 'Line';
-
-		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
-		this.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } );
-
-	}
-
-	Line.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Line,
-
-		isLine: true,
-
-		computeLineDistances: ( function () {
-
-			var start = new Vector3();
-			var end = new Vector3();
-
-			return function computeLineDistances() {
-
-				var geometry = this.geometry;
-
-				if ( geometry.isBufferGeometry ) {
-
-					// we assume non-indexed geometry
-
-					if ( geometry.index === null ) {
-
-						var positionAttribute = geometry.attributes.position;
-						var lineDistances = [ 0 ];
-
-						for ( var i = 1, l = positionAttribute.count; i < l; i ++ ) {
-
-							start.fromBufferAttribute( positionAttribute, i - 1 );
-							end.fromBufferAttribute( positionAttribute, i );
-
-							lineDistances[ i ] = lineDistances[ i - 1 ];
-							lineDistances[ i ] += start.distanceTo( end );
-
-						}
-
-						geometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );
-
-					} else {
-
-						console.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );
-
-					}
-
-				} else if ( geometry.isGeometry ) {
-
-					var vertices = geometry.vertices;
-					var lineDistances = geometry.lineDistances;
-
-					lineDistances[ 0 ] = 0;
-
-					for ( var i = 1, l = vertices.length; i < l; i ++ ) {
-
-						lineDistances[ i ] = lineDistances[ i - 1 ];
-						lineDistances[ i ] += vertices[ i - 1 ].distanceTo( vertices[ i ] );
-
-					}
-
-				}
-
-				return this;
-
-			};
-
-		}() ),
-
-		raycast: ( function () {
-
-			var inverseMatrix = new Matrix4();
-			var ray = new Ray();
-			var sphere = new Sphere();
-
-			return function raycast( raycaster, intersects ) {
-
-				var precision = raycaster.linePrecision;
-
-				var geometry = this.geometry;
-				var matrixWorld = this.matrixWorld;
-
-				// Checking boundingSphere distance to ray
-
-				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
-
-				sphere.copy( geometry.boundingSphere );
-				sphere.applyMatrix4( matrixWorld );
-				sphere.radius += precision;
-
-				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
-
-				//
-
-				inverseMatrix.getInverse( matrixWorld );
-				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
-
-				var localPrecision = precision / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
-				var localPrecisionSq = localPrecision * localPrecision;
-
-				var vStart = new Vector3();
-				var vEnd = new Vector3();
-				var interSegment = new Vector3();
-				var interRay = new Vector3();
-				var step = ( this && this.isLineSegments ) ? 2 : 1;
-
-				if ( geometry.isBufferGeometry ) {
-
-					var index = geometry.index;
-					var attributes = geometry.attributes;
-					var positions = attributes.position.array;
-
-					if ( index !== null ) {
-
-						var indices = index.array;
-
-						for ( var i = 0, l = indices.length - 1; i < l; i += step ) {
-
-							var a = indices[ i ];
-							var b = indices[ i + 1 ];
-
-							vStart.fromArray( positions, a * 3 );
-							vEnd.fromArray( positions, b * 3 );
-
-							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );
-
-							if ( distSq > localPrecisionSq ) continue;
-
-							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
-
-							var distance = raycaster.ray.origin.distanceTo( interRay );
-
-							if ( distance < raycaster.near || distance > raycaster.far ) continue;
-
-							intersects.push( {
-
-								distance: distance,
-								// What do we want? intersection point on the ray or on the segment??
-								// point: raycaster.ray.at( distance ),
-								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
-								index: i,
-								face: null,
-								faceIndex: null,
-								object: this
-
-							} );
-
-						}
-
-					} else {
-
-						for ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {
-
-							vStart.fromArray( positions, 3 * i );
-							vEnd.fromArray( positions, 3 * i + 3 );
-
-							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );
-
-							if ( distSq > localPrecisionSq ) continue;
-
-							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
-
-							var distance = raycaster.ray.origin.distanceTo( interRay );
-
-							if ( distance < raycaster.near || distance > raycaster.far ) continue;
-
-							intersects.push( {
-
-								distance: distance,
-								// What do we want? intersection point on the ray or on the segment??
-								// point: raycaster.ray.at( distance ),
-								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
-								index: i,
-								face: null,
-								faceIndex: null,
-								object: this
-
-							} );
-
-						}
-
-					}
-
-				} else if ( geometry.isGeometry ) {
-
-					var vertices = geometry.vertices;
-					var nbVertices = vertices.length;
-
-					for ( var i = 0; i < nbVertices - 1; i += step ) {
-
-						var distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );
-
-						if ( distSq > localPrecisionSq ) continue;
-
-						interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
-
-						var distance = raycaster.ray.origin.distanceTo( interRay );
-
-						if ( distance < raycaster.near || distance > raycaster.far ) continue;
-
-						intersects.push( {
-
-							distance: distance,
-							// What do we want? intersection point on the ray or on the segment??
-							// point: raycaster.ray.at( distance ),
-							point: interSegment.clone().applyMatrix4( this.matrixWorld ),
-							index: i,
-							face: null,
-							faceIndex: null,
-							object: this
-
-						} );
-
-					}
-
-				}
-
-			};
-
-		}() ),
-
-		clone: function () {
-
-			return new this.constructor( this.geometry, this.material ).copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function LineSegments( geometry, material ) {
-
-		Line.call( this, geometry, material );
-
-		this.type = 'LineSegments';
-
-	}
-
-	LineSegments.prototype = Object.assign( Object.create( Line.prototype ), {
-
-		constructor: LineSegments,
-
-		isLineSegments: true,
-
-		computeLineDistances: ( function () {
-
-			var start = new Vector3();
-			var end = new Vector3();
-
-			return function computeLineDistances() {
-
-				var geometry = this.geometry;
-
-				if ( geometry.isBufferGeometry ) {
-
-					// we assume non-indexed geometry
-
-					if ( geometry.index === null ) {
-
-						var positionAttribute = geometry.attributes.position;
-						var lineDistances = [];
-
-						for ( var i = 0, l = positionAttribute.count; i < l; i += 2 ) {
-
-							start.fromBufferAttribute( positionAttribute, i );
-							end.fromBufferAttribute( positionAttribute, i + 1 );
-
-							lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
-							lineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );
-
-						}
-
-						geometry.addAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) );
-
-					} else {
-
-						console.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );
-
-					}
-
-				} else if ( geometry.isGeometry ) {
-
-					var vertices = geometry.vertices;
-					var lineDistances = geometry.lineDistances;
-
-					for ( var i = 0, l = vertices.length; i < l; i += 2 ) {
-
-						start.copy( vertices[ i ] );
-						end.copy( vertices[ i + 1 ] );
-
-						lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
-						lineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );
-
-					}
-
-				}
-
-				return this;
-
-			};
-
-		}() )
-
-	} );
-
-	/**
-	 * @author mgreter / http://github.com/mgreter
-	 */
-
-	function LineLoop( geometry, material ) {
-
-		Line.call( this, geometry, material );
-
-		this.type = 'LineLoop';
-
-	}
-
-	LineLoop.prototype = Object.assign( Object.create( Line.prototype ), {
-
-		constructor: LineLoop,
-
-		isLineLoop: true,
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  size: <float>,
-	 *  sizeAttenuation: <bool>
-	 *
-	 *  morphTargets: <bool>
-	 * }
-	 */
-
-	function PointsMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'PointsMaterial';
-
-		this.color = new Color( 0xffffff );
-
-		this.map = null;
-
-		this.size = 1;
-		this.sizeAttenuation = true;
-
-		this.morphTargets = false;
-
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	PointsMaterial.prototype = Object.create( Material.prototype );
-	PointsMaterial.prototype.constructor = PointsMaterial;
-
-	PointsMaterial.prototype.isPointsMaterial = true;
-
-	PointsMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-
-		this.map = source.map;
-
-		this.size = source.size;
-		this.sizeAttenuation = source.sizeAttenuation;
-
-		this.morphTargets = source.morphTargets;
-
-		return this;
-
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Points( geometry, material ) {
-
-		Object3D.call( this );
-
-		this.type = 'Points';
-
-		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
-		this.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } );
-
-	}
-
-	Points.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Points,
-
-		isPoints: true,
-
-		raycast: ( function () {
-
-			var inverseMatrix = new Matrix4();
-			var ray = new Ray();
-			var sphere = new Sphere();
-
-			return function raycast( raycaster, intersects ) {
-
-				var object = this;
-				var geometry = this.geometry;
-				var matrixWorld = this.matrixWorld;
-				var threshold = raycaster.params.Points.threshold;
-
-				// Checking boundingSphere distance to ray
-
-				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
-
-				sphere.copy( geometry.boundingSphere );
-				sphere.applyMatrix4( matrixWorld );
-				sphere.radius += threshold;
-
-				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
-
-				//
-
-				inverseMatrix.getInverse( matrixWorld );
-				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
-
-				var localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
-				var localThresholdSq = localThreshold * localThreshold;
-				var position = new Vector3();
-				var intersectPoint = new Vector3();
-
-				function testPoint( point, index ) {
-
-					var rayPointDistanceSq = ray.distanceSqToPoint( point );
-
-					if ( rayPointDistanceSq < localThresholdSq ) {
-
-						ray.closestPointToPoint( point, intersectPoint );
-						intersectPoint.applyMatrix4( matrixWorld );
-
-						var distance = raycaster.ray.origin.distanceTo( intersectPoint );
-
-						if ( distance < raycaster.near || distance > raycaster.far ) return;
-
-						intersects.push( {
-
-							distance: distance,
-							distanceToRay: Math.sqrt( rayPointDistanceSq ),
-							point: intersectPoint.clone(),
-							index: index,
-							face: null,
-							object: object
-
-						} );
-
-					}
-
-				}
-
-				if ( geometry.isBufferGeometry ) {
-
-					var index = geometry.index;
-					var attributes = geometry.attributes;
-					var positions = attributes.position.array;
-
-					if ( index !== null ) {
-
-						var indices = index.array;
-
-						for ( var i = 0, il = indices.length; i < il; i ++ ) {
-
-							var a = indices[ i ];
-
-							position.fromArray( positions, a * 3 );
-
-							testPoint( position, a );
-
-						}
-
-					} else {
-
-						for ( var i = 0, l = positions.length / 3; i < l; i ++ ) {
-
-							position.fromArray( positions, i * 3 );
-
-							testPoint( position, i );
-
-						}
-
-					}
-
-				} else {
-
-					var vertices = geometry.vertices;
-
-					for ( var i = 0, l = vertices.length; i < l; i ++ ) {
-
-						testPoint( vertices[ i ], i );
-
-					}
-
-				}
-
-			};
-
-		}() ),
-
-		clone: function () {
-
-			return new this.constructor( this.geometry, this.material ).copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {
-
-		Texture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
-
-		this.format = format !== undefined ? format : RGBFormat;
-
-		this.minFilter = minFilter !== undefined ? minFilter : LinearFilter;
-		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
-
-		this.generateMipmaps = false;
-
-	}
-
-	VideoTexture.prototype = Object.assign( Object.create( Texture.prototype ), {
-
-		constructor: VideoTexture,
-
-		isVideoTexture: true,
-
-		update: function () {
-
-			var video = this.image;
-
-			if ( video.readyState >= video.HAVE_CURRENT_DATA ) {
-
-				this.needsUpdate = true;
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {
-
-		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
-
-		this.image = { width: width, height: height };
-		this.mipmaps = mipmaps;
-
-		// no flipping for cube textures
-		// (also flipping doesn't work for compressed textures )
-
-		this.flipY = false;
-
-		// can't generate mipmaps for compressed textures
-		// mips must be embedded in DDS files
-
-		this.generateMipmaps = false;
-
-	}
-
-	CompressedTexture.prototype = Object.create( Texture.prototype );
-	CompressedTexture.prototype.constructor = CompressedTexture;
-
-	CompressedTexture.prototype.isCompressedTexture = true;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {
-
-		Texture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
-
-		this.needsUpdate = true;
-
-	}
-
-	CanvasTexture.prototype = Object.create( Texture.prototype );
-	CanvasTexture.prototype.constructor = CanvasTexture;
-	CanvasTexture.prototype.isCanvasTexture = true;
-
-	/**
-	 * @author Matt DesLauriers / @mattdesl
-	 * @author atix / arthursilber.de
-	 */
-
-	function DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {
-
-		format = format !== undefined ? format : DepthFormat;
-
-		if ( format !== DepthFormat && format !== DepthStencilFormat ) {
-
-			throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );
-
-		}
-
-		if ( type === undefined && format === DepthFormat ) type = UnsignedShortType;
-		if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;
-
-		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
-
-		this.image = { width: width, height: height };
-
-		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
-		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
-
-		this.flipY = false;
-		this.generateMipmaps	= false;
-
-	}
-
-	DepthTexture.prototype = Object.create( Texture.prototype );
-	DepthTexture.prototype.constructor = DepthTexture;
-	DepthTexture.prototype.isDepthTexture = true;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function WireframeGeometry( geometry ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'WireframeGeometry';
-
-		// buffer
-
-		var vertices = [];
-
-		// helper variables
-
-		var i, j, l, o, ol;
-		var edge = [ 0, 0 ], edges = {}, e, edge1, edge2;
-		var key, keys = [ 'a', 'b', 'c' ];
-		var vertex;
-
-		// different logic for Geometry and BufferGeometry
-
-		if ( geometry && geometry.isGeometry ) {
-
-			// create a data structure that contains all edges without duplicates
-
-			var faces = geometry.faces;
-
-			for ( i = 0, l = faces.length; i < l; i ++ ) {
-
-				var face = faces[ i ];
-
-				for ( j = 0; j < 3; j ++ ) {
-
-					edge1 = face[ keys[ j ] ];
-					edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
-					edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
-					edge[ 1 ] = Math.max( edge1, edge2 );
-
-					key = edge[ 0 ] + ',' + edge[ 1 ];
-
-					if ( edges[ key ] === undefined ) {
-
-						edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };
-
-					}
-
-				}
-
-			}
-
-			// generate vertices
-
-			for ( key in edges ) {
-
-				e = edges[ key ];
-
-				vertex = geometry.vertices[ e.index1 ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				vertex = geometry.vertices[ e.index2 ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-			}
-
-		} else if ( geometry && geometry.isBufferGeometry ) {
-
-			var position, indices, groups;
-			var group, start, count;
-			var index1, index2;
-
-			vertex = new Vector3();
-
-			if ( geometry.index !== null ) {
-
-				// indexed BufferGeometry
-
-				position = geometry.attributes.position;
-				indices = geometry.index;
-				groups = geometry.groups;
-
-				if ( groups.length === 0 ) {
-
-					groups = [ { start: 0, count: indices.count, materialIndex: 0 } ];
-
-				}
-
-				// create a data structure that contains all eges without duplicates
-
-				for ( o = 0, ol = groups.length; o < ol; ++ o ) {
-
-					group = groups[ o ];
-
-					start = group.start;
-					count = group.count;
-
-					for ( i = start, l = ( start + count ); i < l; i += 3 ) {
-
-						for ( j = 0; j < 3; j ++ ) {
-
-							edge1 = indices.getX( i + j );
-							edge2 = indices.getX( i + ( j + 1 ) % 3 );
-							edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
-							edge[ 1 ] = Math.max( edge1, edge2 );
-
-							key = edge[ 0 ] + ',' + edge[ 1 ];
-
-							if ( edges[ key ] === undefined ) {
-
-								edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };
-
-							}
-
-						}
-
-					}
-
-				}
-
-				// generate vertices
-
-				for ( key in edges ) {
-
-					e = edges[ key ];
-
-					vertex.fromBufferAttribute( position, e.index1 );
-					vertices.push( vertex.x, vertex.y, vertex.z );
-
-					vertex.fromBufferAttribute( position, e.index2 );
-					vertices.push( vertex.x, vertex.y, vertex.z );
-
-				}
-
-			} else {
-
-				// non-indexed BufferGeometry
-
-				position = geometry.attributes.position;
-
-				for ( i = 0, l = ( position.count / 3 ); i < l; i ++ ) {
-
-					for ( j = 0; j < 3; j ++ ) {
-
-						// three edges per triangle, an edge is represented as (index1, index2)
-						// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)
-
-						index1 = 3 * i + j;
-						vertex.fromBufferAttribute( position, index1 );
-						vertices.push( vertex.x, vertex.y, vertex.z );
-
-						index2 = 3 * i + ( ( j + 1 ) % 3 );
-						vertex.fromBufferAttribute( position, index2 );
-						vertices.push( vertex.x, vertex.y, vertex.z );
-
-					}
-
-				}
-
-			}
-
-		}
-
-		// build geometry
-
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-
-	}
-
-	WireframeGeometry.prototype = Object.create( BufferGeometry.prototype );
-	WireframeGeometry.prototype.constructor = WireframeGeometry;
-
-	/**
-	 * @author zz85 / https://github.com/zz85
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 * Parametric Surfaces Geometry
-	 * based on the brilliant article by @prideout http://prideout.net/blog/?p=44
-	 */
-
-	// ParametricGeometry
-
-	function ParametricGeometry( func, slices, stacks ) {
-
-		Geometry.call( this );
-
-		this.type = 'ParametricGeometry';
-
-		this.parameters = {
-			func: func,
-			slices: slices,
-			stacks: stacks
-		};
-
-		this.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) );
-		this.mergeVertices();
-
-	}
-
-	ParametricGeometry.prototype = Object.create( Geometry.prototype );
-	ParametricGeometry.prototype.constructor = ParametricGeometry;
-
-	// ParametricBufferGeometry
-
-	function ParametricBufferGeometry( func, slices, stacks ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'ParametricBufferGeometry';
-
-		this.parameters = {
-			func: func,
-			slices: slices,
-			stacks: stacks
-		};
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		var EPS = 0.00001;
-
-		var normal = new Vector3();
-
-		var p0 = new Vector3(), p1 = new Vector3();
-		var pu = new Vector3(), pv = new Vector3();
-
-		var i, j;
-
-		if ( func.length < 3 ) {
-
-			console.error( 'THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.' );
-
-		}
-
-		// generate vertices, normals and uvs
-
-		var sliceCount = slices + 1;
-
-		for ( i = 0; i <= stacks; i ++ ) {
-
-			var v = i / stacks;
-
-			for ( j = 0; j <= slices; j ++ ) {
-
-				var u = j / slices;
-
-				// vertex
-
-				func( u, v, p0 );
-				vertices.push( p0.x, p0.y, p0.z );
-
-				// normal
-
-				// approximate tangent vectors via finite differences
-
-				if ( u - EPS >= 0 ) {
-
-					func( u - EPS, v, p1 );
-					pu.subVectors( p0, p1 );
-
-				} else {
-
-					func( u + EPS, v, p1 );
-					pu.subVectors( p1, p0 );
-
-				}
-
-				if ( v - EPS >= 0 ) {
-
-					func( u, v - EPS, p1 );
-					pv.subVectors( p0, p1 );
-
-				} else {
-
-					func( u, v + EPS, p1 );
-					pv.subVectors( p1, p0 );
-
-				}
-
-				// cross product of tangent vectors returns surface normal
-
-				normal.crossVectors( pu, pv ).normalize();
-				normals.push( normal.x, normal.y, normal.z );
-
-				// uv
-
-				uvs.push( u, v );
-
-			}
-
-		}
-
-		// generate indices
-
-		for ( i = 0; i < stacks; i ++ ) {
-
-			for ( j = 0; j < slices; j ++ ) {
-
-				var a = i * sliceCount + j;
-				var b = i * sliceCount + j + 1;
-				var c = ( i + 1 ) * sliceCount + j + 1;
-				var d = ( i + 1 ) * sliceCount + j;
-
-				// faces one and two
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	ParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	ParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry;
-
-	/**
-	 * @author clockworkgeek / https://github.com/clockworkgeek
-	 * @author timothypratley / https://github.com/timothypratley
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// PolyhedronGeometry
-
-	function PolyhedronGeometry( vertices, indices, radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'PolyhedronGeometry';
-
-		this.parameters = {
-			vertices: vertices,
-			indices: indices,
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	PolyhedronGeometry.prototype = Object.create( Geometry.prototype );
-	PolyhedronGeometry.prototype.constructor = PolyhedronGeometry;
-
-	// PolyhedronBufferGeometry
-
-	function PolyhedronBufferGeometry( vertices, indices, radius, detail ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'PolyhedronBufferGeometry';
-
-		this.parameters = {
-			vertices: vertices,
-			indices: indices,
-			radius: radius,
-			detail: detail
-		};
-
-		radius = radius || 1;
-		detail = detail || 0;
-
-		// default buffer data
-
-		var vertexBuffer = [];
-		var uvBuffer = [];
-
-		// the subdivision creates the vertex buffer data
-
-		subdivide( detail );
-
-		// all vertices should lie on a conceptual sphere with a given radius
-
-		appplyRadius( radius );
-
-		// finally, create the uv data
-
-		generateUVs();
-
-		// build non-indexed geometry
-
-		this.addAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );
-
-		if ( detail === 0 ) {
-
-			this.computeVertexNormals(); // flat normals
-
-		} else {
-
-			this.normalizeNormals(); // smooth normals
-
-		}
-
-		// helper functions
-
-		function subdivide( detail ) {
-
-			var a = new Vector3();
-			var b = new Vector3();
-			var c = new Vector3();
-
-			// iterate over all faces and apply a subdivison with the given detail value
-
-			for ( var i = 0; i < indices.length; i += 3 ) {
-
-				// get the vertices of the face
-
-				getVertexByIndex( indices[ i + 0 ], a );
-				getVertexByIndex( indices[ i + 1 ], b );
-				getVertexByIndex( indices[ i + 2 ], c );
-
-				// perform subdivision
-
-				subdivideFace( a, b, c, detail );
-
-			}
-
-		}
-
-		function subdivideFace( a, b, c, detail ) {
-
-			var cols = Math.pow( 2, detail );
-
-			// we use this multidimensional array as a data structure for creating the subdivision
-
-			var v = [];
-
-			var i, j;
-
-			// construct all of the vertices for this subdivision
-
-			for ( i = 0; i <= cols; i ++ ) {
-
-				v[ i ] = [];
-
-				var aj = a.clone().lerp( c, i / cols );
-				var bj = b.clone().lerp( c, i / cols );
-
-				var rows = cols - i;
-
-				for ( j = 0; j <= rows; j ++ ) {
-
-					if ( j === 0 && i === cols ) {
-
-						v[ i ][ j ] = aj;
-
-					} else {
-
-						v[ i ][ j ] = aj.clone().lerp( bj, j / rows );
-
-					}
-
-				}
-
-			}
-
-			// construct all of the faces
-
-			for ( i = 0; i < cols; i ++ ) {
-
-				for ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {
-
-					var k = Math.floor( j / 2 );
-
-					if ( j % 2 === 0 ) {
-
-						pushVertex( v[ i ][ k + 1 ] );
-						pushVertex( v[ i + 1 ][ k ] );
-						pushVertex( v[ i ][ k ] );
-
-					} else {
-
-						pushVertex( v[ i ][ k + 1 ] );
-						pushVertex( v[ i + 1 ][ k + 1 ] );
-						pushVertex( v[ i + 1 ][ k ] );
-
-					}
-
-				}
-
-			}
-
-		}
-
-		function appplyRadius( radius ) {
-
-			var vertex = new Vector3();
-
-			// iterate over the entire buffer and apply the radius to each vertex
-
-			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {
-
-				vertex.x = vertexBuffer[ i + 0 ];
-				vertex.y = vertexBuffer[ i + 1 ];
-				vertex.z = vertexBuffer[ i + 2 ];
-
-				vertex.normalize().multiplyScalar( radius );
-
-				vertexBuffer[ i + 0 ] = vertex.x;
-				vertexBuffer[ i + 1 ] = vertex.y;
-				vertexBuffer[ i + 2 ] = vertex.z;
-
-			}
-
-		}
-
-		function generateUVs() {
-
-			var vertex = new Vector3();
-
-			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {
-
-				vertex.x = vertexBuffer[ i + 0 ];
-				vertex.y = vertexBuffer[ i + 1 ];
-				vertex.z = vertexBuffer[ i + 2 ];
-
-				var u = azimuth( vertex ) / 2 / Math.PI + 0.5;
-				var v = inclination( vertex ) / Math.PI + 0.5;
-				uvBuffer.push( u, 1 - v );
-
-			}
-
-			correctUVs();
-
-			correctSeam();
-
-		}
-
-		function correctSeam() {
-
-			// handle case when face straddles the seam, see #3269
-
-			for ( var i = 0; i < uvBuffer.length; i += 6 ) {
-
-				// uv data of a single face
-
-				var x0 = uvBuffer[ i + 0 ];
-				var x1 = uvBuffer[ i + 2 ];
-				var x2 = uvBuffer[ i + 4 ];
-
-				var max = Math.max( x0, x1, x2 );
-				var min = Math.min( x0, x1, x2 );
-
-				// 0.9 is somewhat arbitrary
-
-				if ( max > 0.9 && min < 0.1 ) {
-
-					if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;
-					if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;
-					if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;
-
-				}
-
-			}
-
-		}
-
-		function pushVertex( vertex ) {
-
-			vertexBuffer.push( vertex.x, vertex.y, vertex.z );
-
-		}
-
-		function getVertexByIndex( index, vertex ) {
-
-			var stride = index * 3;
-
-			vertex.x = vertices[ stride + 0 ];
-			vertex.y = vertices[ stride + 1 ];
-			vertex.z = vertices[ stride + 2 ];
-
-		}
-
-		function correctUVs() {
-
-			var a = new Vector3();
-			var b = new Vector3();
-			var c = new Vector3();
-
-			var centroid = new Vector3();
-
-			var uvA = new Vector2();
-			var uvB = new Vector2();
-			var uvC = new Vector2();
-
-			for ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {
-
-				a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );
-				b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );
-				c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );
-
-				uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );
-				uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );
-				uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );
-
-				centroid.copy( a ).add( b ).add( c ).divideScalar( 3 );
-
-				var azi = azimuth( centroid );
-
-				correctUV( uvA, j + 0, a, azi );
-				correctUV( uvB, j + 2, b, azi );
-				correctUV( uvC, j + 4, c, azi );
-
-			}
-
-		}
-
-		function correctUV( uv, stride, vector, azimuth ) {
-
-			if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {
-
-				uvBuffer[ stride ] = uv.x - 1;
-
-			}
-
-			if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {
-
-				uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;
-
-			}
-
-		}
-
-		// Angle around the Y axis, counter-clockwise when looking from above.
-
-		function azimuth( vector ) {
-
-			return Math.atan2( vector.z, - vector.x );
-
-		}
-
-
-		// Angle above the XZ plane.
-
-		function inclination( vector ) {
-
-			return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );
-
-		}
-
-	}
-
-	PolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	PolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry;
-
-	/**
-	 * @author timothypratley / https://github.com/timothypratley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// TetrahedronGeometry
-
-	function TetrahedronGeometry( radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'TetrahedronGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	TetrahedronGeometry.prototype = Object.create( Geometry.prototype );
-	TetrahedronGeometry.prototype.constructor = TetrahedronGeometry;
-
-	// TetrahedronBufferGeometry
-
-	function TetrahedronBufferGeometry( radius, detail ) {
-
-		var vertices = [
-			1, 1, 1, 	- 1, - 1, 1, 	- 1, 1, - 1, 	1, - 1, - 1
-		];
-
-		var indices = [
-			2, 1, 0, 	0, 3, 2,	1, 3, 0,	2, 3, 1
-		];
-
-		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
-
-		this.type = 'TetrahedronBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-	}
-
-	TetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
-	TetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry;
-
-	/**
-	 * @author timothypratley / https://github.com/timothypratley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// OctahedronGeometry
-
-	function OctahedronGeometry( radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'OctahedronGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	OctahedronGeometry.prototype = Object.create( Geometry.prototype );
-	OctahedronGeometry.prototype.constructor = OctahedronGeometry;
-
-	// OctahedronBufferGeometry
-
-	function OctahedronBufferGeometry( radius, detail ) {
-
-		var vertices = [
-			1, 0, 0, 	- 1, 0, 0,	0, 1, 0,
-			0, - 1, 0, 	0, 0, 1,	0, 0, - 1
-		];
-
-		var indices = [
-			0, 2, 4,	0, 4, 3,	0, 3, 5,
-			0, 5, 2,	1, 2, 5,	1, 5, 3,
-			1, 3, 4,	1, 4, 2
-		];
-
-		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
-
-		this.type = 'OctahedronBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-	}
-
-	OctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
-	OctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry;
-
-	/**
-	 * @author timothypratley / https://github.com/timothypratley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// IcosahedronGeometry
-
-	function IcosahedronGeometry( radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'IcosahedronGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	IcosahedronGeometry.prototype = Object.create( Geometry.prototype );
-	IcosahedronGeometry.prototype.constructor = IcosahedronGeometry;
-
-	// IcosahedronBufferGeometry
-
-	function IcosahedronBufferGeometry( radius, detail ) {
-
-		var t = ( 1 + Math.sqrt( 5 ) ) / 2;
-
-		var vertices = [
-			- 1, t, 0, 	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
-			 0, - 1, t, 	0, 1, t,	0, - 1, - t, 	0, 1, - t,
-			 t, 0, - 1, 	t, 0, 1, 	- t, 0, - 1, 	- t, 0, 1
-		];
-
-		var indices = [
-			 0, 11, 5, 	0, 5, 1, 	0, 1, 7, 	0, 7, 10, 	0, 10, 11,
-			 1, 5, 9, 	5, 11, 4,	11, 10, 2,	10, 7, 6,	7, 1, 8,
-			 3, 9, 4, 	3, 4, 2,	3, 2, 6,	3, 6, 8,	3, 8, 9,
-			 4, 9, 5, 	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
-		];
-
-		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
-
-		this.type = 'IcosahedronBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-	}
-
-	IcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
-	IcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;
-
-	/**
-	 * @author Abe Pazos / https://hamoid.com
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// DodecahedronGeometry
-
-	function DodecahedronGeometry( radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'DodecahedronGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	DodecahedronGeometry.prototype = Object.create( Geometry.prototype );
-	DodecahedronGeometry.prototype.constructor = DodecahedronGeometry;
-
-	// DodecahedronBufferGeometry
-
-	function DodecahedronBufferGeometry( radius, detail ) {
-
-		var t = ( 1 + Math.sqrt( 5 ) ) / 2;
-		var r = 1 / t;
-
-		var vertices = [
-
-			// (±1, ±1, ±1)
-			- 1, - 1, - 1,	- 1, - 1, 1,
-			- 1, 1, - 1, - 1, 1, 1,
-			1, - 1, - 1, 1, - 1, 1,
-			1, 1, - 1, 1, 1, 1,
-
-			// (0, ±1/φ, ±φ)
-			 0, - r, - t, 0, - r, t,
-			 0, r, - t, 0, r, t,
-
-			// (±1/φ, ±φ, 0)
-			- r, - t, 0, - r, t, 0,
-			 r, - t, 0, r, t, 0,
-
-			// (±φ, 0, ±1/φ)
-			- t, 0, - r, t, 0, - r,
-			- t, 0, r, t, 0, r
-		];
-
-		var indices = [
-			3, 11, 7, 	3, 7, 15, 	3, 15, 13,
-			7, 19, 17, 	7, 17, 6, 	7, 6, 15,
-			17, 4, 8, 	17, 8, 10, 	17, 10, 6,
-			8, 0, 16, 	8, 16, 2, 	8, 2, 10,
-			0, 12, 1, 	0, 1, 18, 	0, 18, 16,
-			6, 10, 2, 	6, 2, 13, 	6, 13, 15,
-			2, 16, 18, 	2, 18, 3, 	2, 3, 13,
-			18, 1, 9, 	18, 9, 11, 	18, 11, 3,
-			4, 14, 12, 	4, 12, 0, 	4, 0, 8,
-			11, 9, 5, 	11, 5, 19, 	11, 19, 7,
-			19, 5, 14, 	19, 14, 4, 	19, 4, 17,
-			1, 12, 14, 	1, 14, 5, 	1, 5, 9
-		];
-
-		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
-
-		this.type = 'DodecahedronBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-	}
-
-	DodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
-	DodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry;
-
-	/**
-	 * @author oosmoxiecode / https://github.com/oosmoxiecode
-	 * @author WestLangley / https://github.com/WestLangley
-	 * @author zz85 / https://github.com/zz85
-	 * @author miningold / https://github.com/miningold
-	 * @author jonobr1 / https://github.com/jonobr1
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 */
-
-	// TubeGeometry
-
-	function TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {
-
-		Geometry.call( this );
-
-		this.type = 'TubeGeometry';
-
-		this.parameters = {
-			path: path,
-			tubularSegments: tubularSegments,
-			radius: radius,
-			radialSegments: radialSegments,
-			closed: closed
-		};
-
-		if ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );
-
-		var bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );
-
-		// expose internals
-
-		this.tangents = bufferGeometry.tangents;
-		this.normals = bufferGeometry.normals;
-		this.binormals = bufferGeometry.binormals;
-
-		// create geometry
-
-		this.fromBufferGeometry( bufferGeometry );
-		this.mergeVertices();
-
-	}
-
-	TubeGeometry.prototype = Object.create( Geometry.prototype );
-	TubeGeometry.prototype.constructor = TubeGeometry;
-
-	// TubeBufferGeometry
-
-	function TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'TubeBufferGeometry';
-
-		this.parameters = {
-			path: path,
-			tubularSegments: tubularSegments,
-			radius: radius,
-			radialSegments: radialSegments,
-			closed: closed
-		};
-
-		tubularSegments = tubularSegments || 64;
-		radius = radius || 1;
-		radialSegments = radialSegments || 8;
-		closed = closed || false;
-
-		var frames = path.computeFrenetFrames( tubularSegments, closed );
-
-		// expose internals
-
-		this.tangents = frames.tangents;
-		this.normals = frames.normals;
-		this.binormals = frames.binormals;
-
-		// helper variables
-
-		var vertex = new Vector3();
-		var normal = new Vector3();
-		var uv = new Vector2();
-		var P = new Vector3();
-
-		var i, j;
-
-		// buffer
-
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-		var indices = [];
-
-		// create buffer data
-
-		generateBufferData();
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		// functions
-
-		function generateBufferData() {
-
-			for ( i = 0; i < tubularSegments; i ++ ) {
-
-				generateSegment( i );
-
-			}
-
-			// if the geometry is not closed, generate the last row of vertices and normals
-			// at the regular position on the given path
-			//
-			// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)
-
-			generateSegment( ( closed === false ) ? tubularSegments : 0 );
-
-			// uvs are generated in a separate function.
-			// this makes it easy compute correct values for closed geometries
-
-			generateUVs();
-
-			// finally create faces
-
-			generateIndices();
-
-		}
-
-		function generateSegment( i ) {
-
-			// we use getPointAt to sample evenly distributed points from the given path
-
-			P = path.getPointAt( i / tubularSegments, P );
-
-			// retrieve corresponding normal and binormal
-
-			var N = frames.normals[ i ];
-			var B = frames.binormals[ i ];
-
-			// generate normals and vertices for the current segment
-
-			for ( j = 0; j <= radialSegments; j ++ ) {
-
-				var v = j / radialSegments * Math.PI * 2;
-
-				var sin = Math.sin( v );
-				var cos = - Math.cos( v );
-
-				// normal
-
-				normal.x = ( cos * N.x + sin * B.x );
-				normal.y = ( cos * N.y + sin * B.y );
-				normal.z = ( cos * N.z + sin * B.z );
-				normal.normalize();
-
-				normals.push( normal.x, normal.y, normal.z );
-
-				// vertex
-
-				vertex.x = P.x + radius * normal.x;
-				vertex.y = P.y + radius * normal.y;
-				vertex.z = P.z + radius * normal.z;
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-			}
-
-		}
-
-		function generateIndices() {
-
-			for ( j = 1; j <= tubularSegments; j ++ ) {
-
-				for ( i = 1; i <= radialSegments; i ++ ) {
-
-					var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
-					var b = ( radialSegments + 1 ) * j + ( i - 1 );
-					var c = ( radialSegments + 1 ) * j + i;
-					var d = ( radialSegments + 1 ) * ( j - 1 ) + i;
-
-					// faces
-
-					indices.push( a, b, d );
-					indices.push( b, c, d );
-
-				}
-
-			}
-
-		}
-
-		function generateUVs() {
-
-			for ( i = 0; i <= tubularSegments; i ++ ) {
-
-				for ( j = 0; j <= radialSegments; j ++ ) {
-
-					uv.x = i / tubularSegments;
-					uv.y = j / radialSegments;
-
-					uvs.push( uv.x, uv.y );
-
-				}
-
-			}
-
-		}
-
-	}
-
-	TubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	TubeBufferGeometry.prototype.constructor = TubeBufferGeometry;
-
-	TubeBufferGeometry.prototype.toJSON = function () {
-
-		var data = BufferGeometry.prototype.toJSON.call( this );
-
-		data.path = this.parameters.path.toJSON();
-
-		return data;
-
-	};
-
-	/**
-	 * @author oosmoxiecode
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 * based on http://www.blackpawn.com/texts/pqtorus/
-	 */
-
-	// TorusKnotGeometry
-
-	function TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) {
-
-		Geometry.call( this );
-
-		this.type = 'TorusKnotGeometry';
-
-		this.parameters = {
-			radius: radius,
-			tube: tube,
-			tubularSegments: tubularSegments,
-			radialSegments: radialSegments,
-			p: p,
-			q: q
-		};
-
-		if ( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' );
-
-		this.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) );
-		this.mergeVertices();
-
-	}
-
-	TorusKnotGeometry.prototype = Object.create( Geometry.prototype );
-	TorusKnotGeometry.prototype.constructor = TorusKnotGeometry;
-
-	// TorusKnotBufferGeometry
-
-	function TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'TorusKnotBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			tube: tube,
-			tubularSegments: tubularSegments,
-			radialSegments: radialSegments,
-			p: p,
-			q: q
-		};
-
-		radius = radius || 1;
-		tube = tube || 0.4;
-		tubularSegments = Math.floor( tubularSegments ) || 64;
-		radialSegments = Math.floor( radialSegments ) || 8;
-		p = p || 2;
-		q = q || 3;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var i, j;
-
-		var vertex = new Vector3();
-		var normal = new Vector3();
-
-		var P1 = new Vector3();
-		var P2 = new Vector3();
-
-		var B = new Vector3();
-		var T = new Vector3();
-		var N = new Vector3();
-
-		// generate vertices, normals and uvs
-
-		for ( i = 0; i <= tubularSegments; ++ i ) {
-
-			// the radian "u" is used to calculate the position on the torus curve of the current tubular segement
-
-			var u = i / tubularSegments * p * Math.PI * 2;
-
-			// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
-			// these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions
-
-			calculatePositionOnCurve( u, p, q, radius, P1 );
-			calculatePositionOnCurve( u + 0.01, p, q, radius, P2 );
-
-			// calculate orthonormal basis
-
-			T.subVectors( P2, P1 );
-			N.addVectors( P2, P1 );
-			B.crossVectors( T, N );
-			N.crossVectors( B, T );
-
-			// normalize B, N. T can be ignored, we don't use it
-
-			B.normalize();
-			N.normalize();
-
-			for ( j = 0; j <= radialSegments; ++ j ) {
-
-				// now calculate the vertices. they are nothing more than an extrusion of the torus curve.
-				// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.
-
-				var v = j / radialSegments * Math.PI * 2;
-				var cx = - tube * Math.cos( v );
-				var cy = tube * Math.sin( v );
-
-				// now calculate the final vertex position.
-				// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve
-
-				vertex.x = P1.x + ( cx * N.x + cy * B.x );
-				vertex.y = P1.y + ( cx * N.y + cy * B.y );
-				vertex.z = P1.z + ( cx * N.z + cy * B.z );
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)
-
-				normal.subVectors( vertex, P1 ).normalize();
-
-				normals.push( normal.x, normal.y, normal.z );
-
-				// uv
-
-				uvs.push( i / tubularSegments );
-				uvs.push( j / radialSegments );
-
-			}
-
-		}
-
-		// generate indices
-
-		for ( j = 1; j <= tubularSegments; j ++ ) {
-
-			for ( i = 1; i <= radialSegments; i ++ ) {
-
-				// indices
-
-				var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
-				var b = ( radialSegments + 1 ) * j + ( i - 1 );
-				var c = ( radialSegments + 1 ) * j + i;
-				var d = ( radialSegments + 1 ) * ( j - 1 ) + i;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		// this function calculates the current position on the torus curve
-
-		function calculatePositionOnCurve( u, p, q, radius, position ) {
-
-			var cu = Math.cos( u );
-			var su = Math.sin( u );
-			var quOverP = q / p * u;
-			var cs = Math.cos( quOverP );
-
-			position.x = radius * ( 2 + cs ) * 0.5 * cu;
-			position.y = radius * ( 2 + cs ) * su * 0.5;
-			position.z = radius * Math.sin( quOverP ) * 0.5;
-
-		}
-
-	}
-
-	TorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	TorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry;
-
-	/**
-	 * @author oosmoxiecode
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// TorusGeometry
-
-	function TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) {
-
-		Geometry.call( this );
-
-		this.type = 'TorusGeometry';
-
-		this.parameters = {
-			radius: radius,
-			tube: tube,
-			radialSegments: radialSegments,
-			tubularSegments: tubularSegments,
-			arc: arc
-		};
-
-		this.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) );
-		this.mergeVertices();
-
-	}
-
-	TorusGeometry.prototype = Object.create( Geometry.prototype );
-	TorusGeometry.prototype.constructor = TorusGeometry;
-
-	// TorusBufferGeometry
-
-	function TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'TorusBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			tube: tube,
-			radialSegments: radialSegments,
-			tubularSegments: tubularSegments,
-			arc: arc
-		};
-
-		radius = radius || 1;
-		tube = tube || 0.4;
-		radialSegments = Math.floor( radialSegments ) || 8;
-		tubularSegments = Math.floor( tubularSegments ) || 6;
-		arc = arc || Math.PI * 2;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var center = new Vector3();
-		var vertex = new Vector3();
-		var normal = new Vector3();
-
-		var j, i;
-
-		// generate vertices, normals and uvs
-
-		for ( j = 0; j <= radialSegments; j ++ ) {
-
-			for ( i = 0; i <= tubularSegments; i ++ ) {
-
-				var u = i / tubularSegments * arc;
-				var v = j / radialSegments * Math.PI * 2;
-
-				// vertex
-
-				vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );
-				vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );
-				vertex.z = tube * Math.sin( v );
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal
-
-				center.x = radius * Math.cos( u );
-				center.y = radius * Math.sin( u );
-				normal.subVectors( vertex, center ).normalize();
-
-				normals.push( normal.x, normal.y, normal.z );
-
-				// uv
-
-				uvs.push( i / tubularSegments );
-				uvs.push( j / radialSegments );
-
-			}
-
-		}
-
-		// generate indices
-
-		for ( j = 1; j <= radialSegments; j ++ ) {
-
-			for ( i = 1; i <= tubularSegments; i ++ ) {
-
-				// indices
-
-				var a = ( tubularSegments + 1 ) * j + i - 1;
-				var b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;
-				var c = ( tubularSegments + 1 ) * ( j - 1 ) + i;
-				var d = ( tubularSegments + 1 ) * j + i;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	TorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	TorusBufferGeometry.prototype.constructor = TorusBufferGeometry;
-
-	/**
-	 * @author Mugen87 / https://github.com/Mugen87
-	 * Port from https://github.com/mapbox/earcut (v2.1.2)
-	 */
-
-	var Earcut = {
-
-		triangulate: function ( data, holeIndices, dim ) {
-
-			dim = dim || 2;
-
-			var hasHoles = holeIndices && holeIndices.length,
-				outerLen = hasHoles ? holeIndices[ 0 ] * dim : data.length,
-				outerNode = linkedList( data, 0, outerLen, dim, true ),
-				triangles = [];
-
-			if ( ! outerNode ) return triangles;
-
-			var minX, minY, maxX, maxY, x, y, invSize;
-
-			if ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim );
-
-			// if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
-
-			if ( data.length > 80 * dim ) {
-
-				minX = maxX = data[ 0 ];
-				minY = maxY = data[ 1 ];
-
-				for ( var i = dim; i < outerLen; i += dim ) {
-
-					x = data[ i ];
-					y = data[ i + 1 ];
-					if ( x < minX ) minX = x;
-					if ( y < minY ) minY = y;
-					if ( x > maxX ) maxX = x;
-					if ( y > maxY ) maxY = y;
-
-				}
-
-				// minX, minY and invSize are later used to transform coords into integers for z-order calculation
-
-				invSize = Math.max( maxX - minX, maxY - minY );
-				invSize = invSize !== 0 ? 1 / invSize : 0;
-
-			}
-
-			earcutLinked( outerNode, triangles, dim, minX, minY, invSize );
-
-			return triangles;
-
-		}
-
-	};
-
-	// create a circular doubly linked list from polygon points in the specified winding order
-
-	function linkedList( data, start, end, dim, clockwise ) {
-
-		var i, last;
-
-		if ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) {
-
-			for ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );
-
-		} else {
-
-			for ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );
-
-		}
-
-		if ( last && equals( last, last.next ) ) {
-
-			removeNode( last );
-			last = last.next;
-
-		}
-
-		return last;
-
-	}
-
-	// eliminate colinear or duplicate points
-
-	function filterPoints( start, end ) {
-
-		if ( ! start ) return start;
-		if ( ! end ) end = start;
-
-		var p = start, again;
-
-		do {
-
-			again = false;
-
-			if ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) {
-
-				removeNode( p );
-				p = end = p.prev;
-				if ( p === p.next ) break;
-				again = true;
-
-			} else {
-
-				p = p.next;
-
-			}
-
-		} while ( again || p !== end );
-
-		return end;
-
-	}
-
-	// main ear slicing loop which triangulates a polygon (given as a linked list)
-
-	function earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) {
-
-		if ( ! ear ) return;
-
-		// interlink polygon nodes in z-order
-
-		if ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize );
-
-		var stop = ear, prev, next;
-
-		// iterate through ears, slicing them one by one
-
-		while ( ear.prev !== ear.next ) {
-
-			prev = ear.prev;
-			next = ear.next;
-
-			if ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) {
-
-				// cut off the triangle
-				triangles.push( prev.i / dim );
-				triangles.push( ear.i / dim );
-				triangles.push( next.i / dim );
-
-				removeNode( ear );
-
-				// skipping the next vertice leads to less sliver triangles
-				ear = next.next;
-				stop = next.next;
-
-				continue;
-
-			}
-
-			ear = next;
-
-			// if we looped through the whole remaining polygon and can't find any more ears
-
-			if ( ear === stop ) {
-
-				// try filtering points and slicing again
-
-				if ( ! pass ) {
-
-					earcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 );
-
-					// if this didn't work, try curing all small self-intersections locally
-
-				} else if ( pass === 1 ) {
-
-					ear = cureLocalIntersections( ear, triangles, dim );
-					earcutLinked( ear, triangles, dim, minX, minY, invSize, 2 );
-
-					// as a last resort, try splitting the remaining polygon into two
-
-				} else if ( pass === 2 ) {
-
-					splitEarcut( ear, triangles, dim, minX, minY, invSize );
-
-				}
-
-				break;
-
-			}
-
-		}
-
-	}
-
-	// check whether a polygon node forms a valid ear with adjacent nodes
-
-	function isEar( ear ) {
-
-		var a = ear.prev,
-			b = ear,
-			c = ear.next;
-
-		if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear
-
-		// now make sure we don't have other points inside the potential ear
-		var p = ear.next.next;
-
-		while ( p !== ear.prev ) {
-
-			if ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && area( p.prev, p, p.next ) >= 0 ) {
-
-				return false;
-
-			}
-
-			p = p.next;
-
-		}
-
-		return true;
-
-	}
-
-	function isEarHashed( ear, minX, minY, invSize ) {
-
-		var a = ear.prev,
-			b = ear,
-			c = ear.next;
-
-		if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear
-
-		// triangle bbox; min & max are calculated like this for speed
-
-		var minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ),
-			minTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ),
-			maxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ),
-			maxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y );
-
-		// z-order range for the current triangle bbox;
-
-		var minZ = zOrder( minTX, minTY, minX, minY, invSize ),
-			maxZ = zOrder( maxTX, maxTY, minX, minY, invSize );
-
-		// first look for points inside the triangle in increasing z-order
-
-		var p = ear.nextZ;
-
-		while ( p && p.z <= maxZ ) {
-
-			if ( p !== ear.prev && p !== ear.next &&
-					pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
-					area( p.prev, p, p.next ) >= 0 ) return false;
-			p = p.nextZ;
-
-		}
-
-		// then look for points in decreasing z-order
-
-		p = ear.prevZ;
-
-		while ( p && p.z >= minZ ) {
-
-			if ( p !== ear.prev && p !== ear.next &&
-					pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
-					area( p.prev, p, p.next ) >= 0 ) return false;
-
-			p = p.prevZ;
-
-		}
-
-		return true;
-
-	}
-
-	// go through all polygon nodes and cure small local self-intersections
-
-	function cureLocalIntersections( start, triangles, dim ) {
-
-		var p = start;
-
-		do {
-
-			var a = p.prev, b = p.next.next;
-
-			if ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) {
-
-				triangles.push( a.i / dim );
-				triangles.push( p.i / dim );
-				triangles.push( b.i / dim );
-
-				// remove two nodes involved
-
-				removeNode( p );
-				removeNode( p.next );
-
-				p = start = b;
-
-			}
-
-			p = p.next;
-
-		} while ( p !== start );
-
-		return p;
-
-	}
-
-	// try splitting polygon into two and triangulate them independently
-
-	function splitEarcut( start, triangles, dim, minX, minY, invSize ) {
-
-		// look for a valid diagonal that divides the polygon into two
-
-		var a = start;
-
-		do {
-
-			var b = a.next.next;
-
-			while ( b !== a.prev ) {
-
-				if ( a.i !== b.i && isValidDiagonal( a, b ) ) {
-
-					// split the polygon in two by the diagonal
-
-					var c = splitPolygon( a, b );
-
-					// filter colinear points around the cuts
-
-					a = filterPoints( a, a.next );
-					c = filterPoints( c, c.next );
-
-					// run earcut on each half
-
-					earcutLinked( a, triangles, dim, minX, minY, invSize );
-					earcutLinked( c, triangles, dim, minX, minY, invSize );
-					return;
-
-				}
-
-				b = b.next;
-
-			}
-
-			a = a.next;
-
-		} while ( a !== start );
-
-	}
-
-	// link every hole into the outer loop, producing a single-ring polygon without holes
-
-	function eliminateHoles( data, holeIndices, outerNode, dim ) {
-
-		var queue = [], i, len, start, end, list;
-
-		for ( i = 0, len = holeIndices.length; i < len; i ++ ) {
-
-			start = holeIndices[ i ] * dim;
-			end = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length;
-			list = linkedList( data, start, end, dim, false );
-			if ( list === list.next ) list.steiner = true;
-			queue.push( getLeftmost( list ) );
-
-		}
-
-		queue.sort( compareX );
-
-		// process holes from left to right
-
-		for ( i = 0; i < queue.length; i ++ ) {
-
-			eliminateHole( queue[ i ], outerNode );
-			outerNode = filterPoints( outerNode, outerNode.next );
-
-		}
-
-		return outerNode;
-
-	}
-
-	function compareX( a, b ) {
-
-		return a.x - b.x;
-
-	}
-
-	// find a bridge between vertices that connects hole with an outer ring and and link it
-
-	function eliminateHole( hole, outerNode ) {
-
-		outerNode = findHoleBridge( hole, outerNode );
-
-		if ( outerNode ) {
-
-			var b = splitPolygon( outerNode, hole );
-
-			filterPoints( b, b.next );
-
-		}
-
-	}
-
-	// David Eberly's algorithm for finding a bridge between hole and outer polygon
-
-	function findHoleBridge( hole, outerNode ) {
-
-		var p = outerNode,
-			hx = hole.x,
-			hy = hole.y,
-			qx = - Infinity,
-			m;
-
-		// find a segment intersected by a ray from the hole's leftmost point to the left;
-		// segment's endpoint with lesser x will be potential connection point
-
-		do {
-
-			if ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) {
-
-				var x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y );
-
-				if ( x <= hx && x > qx ) {
-
-					qx = x;
-
-					if ( x === hx ) {
-
-						if ( hy === p.y ) return p;
-						if ( hy === p.next.y ) return p.next;
-
-					}
-
-					m = p.x < p.next.x ? p : p.next;
-
-				}
-
-			}
-
-			p = p.next;
-
-		} while ( p !== outerNode );
-
-		if ( ! m ) return null;
-
-		if ( hx === qx ) return m.prev; // hole touches outer segment; pick lower endpoint
-
-		// look for points inside the triangle of hole point, segment intersection and endpoint;
-		// if there are no points found, we have a valid connection;
-		// otherwise choose the point of the minimum angle with the ray as connection point
-
-		var stop = m,
-			mx = m.x,
-			my = m.y,
-			tanMin = Infinity,
-			tan;
-
-		p = m.next;
-
-		while ( p !== stop ) {
-
-			if ( hx >= p.x && p.x >= mx && hx !== p.x &&
-							pointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) {
-
-				tan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential
-
-				if ( ( tan < tanMin || ( tan === tanMin && p.x > m.x ) ) && locallyInside( p, hole ) ) {
-
-					m = p;
-					tanMin = tan;
-
-				}
-
-			}
-
-			p = p.next;
-
-		}
-
-		return m;
-
-	}
-
-	// interlink polygon nodes in z-order
-
-	function indexCurve( start, minX, minY, invSize ) {
-
-		var p = start;
-
-		do {
-
-			if ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize );
-			p.prevZ = p.prev;
-			p.nextZ = p.next;
-			p = p.next;
-
-		} while ( p !== start );
-
-		p.prevZ.nextZ = null;
-		p.prevZ = null;
-
-		sortLinked( p );
-
-	}
-
-	// Simon Tatham's linked list merge sort algorithm
-	// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
-
-	function sortLinked( list ) {
-
-		var i, p, q, e, tail, numMerges, pSize, qSize, inSize = 1;
-
-		do {
-
-			p = list;
-			list = null;
-			tail = null;
-			numMerges = 0;
-
-			while ( p ) {
-
-				numMerges ++;
-				q = p;
-				pSize = 0;
-
-				for ( i = 0; i < inSize; i ++ ) {
-
-					pSize ++;
-					q = q.nextZ;
-					if ( ! q ) break;
-
-				}
-
-				qSize = inSize;
-
-				while ( pSize > 0 || ( qSize > 0 && q ) ) {
-
-					if ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) {
-
-						e = p;
-						p = p.nextZ;
-						pSize --;
-
-					} else {
-
-						e = q;
-						q = q.nextZ;
-						qSize --;
-
-					}
-
-					if ( tail ) tail.nextZ = e;
-					else list = e;
-
-					e.prevZ = tail;
-					tail = e;
-
-				}
-
-				p = q;
-
-			}
-
-			tail.nextZ = null;
-			inSize *= 2;
-
-		} while ( numMerges > 1 );
-
-		return list;
-
-	}
-
-	// z-order of a point given coords and inverse of the longer side of data bbox
-
-	function zOrder( x, y, minX, minY, invSize ) {
-
-		// coords are transformed into non-negative 15-bit integer range
-
-		x = 32767 * ( x - minX ) * invSize;
-		y = 32767 * ( y - minY ) * invSize;
-
-		x = ( x | ( x << 8 ) ) & 0x00FF00FF;
-		x = ( x | ( x << 4 ) ) & 0x0F0F0F0F;
-		x = ( x | ( x << 2 ) ) & 0x33333333;
-		x = ( x | ( x << 1 ) ) & 0x55555555;
-
-		y = ( y | ( y << 8 ) ) & 0x00FF00FF;
-		y = ( y | ( y << 4 ) ) & 0x0F0F0F0F;
-		y = ( y | ( y << 2 ) ) & 0x33333333;
-		y = ( y | ( y << 1 ) ) & 0x55555555;
-
-		return x | ( y << 1 );
-
-	}
-
-	// find the leftmost node of a polygon ring
-
-	function getLeftmost( start ) {
-
-		var p = start, leftmost = start;
-
-		do {
-
-			if ( p.x < leftmost.x ) leftmost = p;
-			p = p.next;
-
-		} while ( p !== start );
-
-		return leftmost;
-
-	}
-
-	// check if a point lies within a convex triangle
-
-	function pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) {
-
-		return ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 &&
-		 ( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 &&
-		 ( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0;
-
-	}
-
-	// check if a diagonal between two polygon nodes is valid (lies in polygon interior)
-
-	function isValidDiagonal( a, b ) {
-
-		return a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) &&
-			locallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b );
-
-	}
-
-	// signed area of a triangle
-
-	function area( p, q, r ) {
-
-		return ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y );
-
-	}
-
-	// check if two points are equal
-
-	function equals( p1, p2 ) {
-
-		return p1.x === p2.x && p1.y === p2.y;
-
-	}
-
-	// check if two segments intersect
-
-	function intersects( p1, q1, p2, q2 ) {
-
-		if ( ( equals( p1, q1 ) && equals( p2, q2 ) ) ||
-				( equals( p1, q2 ) && equals( p2, q1 ) ) ) return true;
-
-		return area( p1, q1, p2 ) > 0 !== area( p1, q1, q2 ) > 0 &&
-					 area( p2, q2, p1 ) > 0 !== area( p2, q2, q1 ) > 0;
-
-	}
-
-	// check if a polygon diagonal intersects any polygon segments
-
-	function intersectsPolygon( a, b ) {
-
-		var p = a;
-
-		do {
-
-			if ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&
-							intersects( p, p.next, a, b ) ) {
-
-				return true;
-
-			}
-
-			p = p.next;
-
-		} while ( p !== a );
-
-		return false;
-
-	}
-
-	// check if a polygon diagonal is locally inside the polygon
-
-	function locallyInside( a, b ) {
-
-		return area( a.prev, a, a.next ) < 0 ?
-			area( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 :
-			area( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0;
-
-	}
-
-	// check if the middle point of a polygon diagonal is inside the polygon
-
-	function middleInside( a, b ) {
-
-		var p = a,
-			inside = false,
-			px = ( a.x + b.x ) / 2,
-			py = ( a.y + b.y ) / 2;
-
-		do {
-
-			if ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y &&
-							( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) ) {
-
-				inside = ! inside;
-
-			}
-
-			p = p.next;
-
-		} while ( p !== a );
-
-		return inside;
-
-	}
-
-	// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
-	// if one belongs to the outer ring and another to a hole, it merges it into a single ring
-
-	function splitPolygon( a, b ) {
-
-		var a2 = new Node( a.i, a.x, a.y ),
-			b2 = new Node( b.i, b.x, b.y ),
-			an = a.next,
-			bp = b.prev;
-
-		a.next = b;
-		b.prev = a;
-
-		a2.next = an;
-		an.prev = a2;
-
-		b2.next = a2;
-		a2.prev = b2;
-
-		bp.next = b2;
-		b2.prev = bp;
-
-		return b2;
-
-	}
-
-	// create a node and optionally link it with previous one (in a circular doubly linked list)
-
-	function insertNode( i, x, y, last ) {
-
-		var p = new Node( i, x, y );
-
-		if ( ! last ) {
-
-			p.prev = p;
-			p.next = p;
-
-		} else {
-
-			p.next = last.next;
-			p.prev = last;
-			last.next.prev = p;
-			last.next = p;
-
-		}
-
-		return p;
-
-	}
-
-	function removeNode( p ) {
-
-		p.next.prev = p.prev;
-		p.prev.next = p.next;
-
-		if ( p.prevZ ) p.prevZ.nextZ = p.nextZ;
-		if ( p.nextZ ) p.nextZ.prevZ = p.prevZ;
-
-	}
-
-	function Node( i, x, y ) {
-
-		// vertice index in coordinates array
-		this.i = i;
-
-		// vertex coordinates
-		this.x = x;
-		this.y = y;
-
-		// previous and next vertice nodes in a polygon ring
-		this.prev = null;
-		this.next = null;
-
-		// z-order curve value
-		this.z = null;
-
-		// previous and next nodes in z-order
-		this.prevZ = null;
-		this.nextZ = null;
-
-		// indicates whether this is a steiner point
-		this.steiner = false;
-
-	}
-
-	function signedArea( data, start, end, dim ) {
-
-		var sum = 0;
-
-		for ( var i = start, j = end - dim; i < end; i += dim ) {
-
-			sum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] );
-			j = i;
-
-		}
-
-		return sum;
-
-	}
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 */
-
-	var ShapeUtils = {
-
-		// calculate area of the contour polygon
-
-		area: function ( contour ) {
-
-			var n = contour.length;
-			var a = 0.0;
-
-			for ( var p = n - 1, q = 0; q < n; p = q ++ ) {
-
-				a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;
-
-			}
-
-			return a * 0.5;
-
-		},
-
-		isClockWise: function ( pts ) {
-
-			return ShapeUtils.area( pts ) < 0;
-
-		},
-
-		triangulateShape: function ( contour, holes ) {
-
-			var vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]
-			var holeIndices = []; // array of hole indices
-			var faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]
-
-			removeDupEndPts( contour );
-			addContour( vertices, contour );
-
-			//
-
-			var holeIndex = contour.length;
-
-			holes.forEach( removeDupEndPts );
-
-			for ( var i = 0; i < holes.length; i ++ ) {
-
-				holeIndices.push( holeIndex );
-				holeIndex += holes[ i ].length;
-				addContour( vertices, holes[ i ] );
-
-			}
-
-			//
-
-			var triangles = Earcut.triangulate( vertices, holeIndices );
-
-			//
-
-			for ( var i = 0; i < triangles.length; i += 3 ) {
-
-				faces.push( triangles.slice( i, i + 3 ) );
-
-			}
-
-			return faces;
-
-		}
-
-	};
-
-	function removeDupEndPts( points ) {
-
-		var l = points.length;
-
-		if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {
-
-			points.pop();
-
-		}
-
-	}
-
-	function addContour( vertices, contour ) {
-
-		for ( var i = 0; i < contour.length; i ++ ) {
-
-			vertices.push( contour[ i ].x );
-			vertices.push( contour[ i ].y );
-
-		}
-
-	}
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 *
-	 * Creates extruded geometry from a path shape.
-	 *
-	 * parameters = {
-	 *
-	 *  curveSegments: <int>, // number of points on the curves
-	 *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
-	 *  depth: <float>, // Depth to extrude the shape
-	 *
-	 *  bevelEnabled: <bool>, // turn on bevel
-	 *  bevelThickness: <float>, // how deep into the original shape bevel goes
-	 *  bevelSize: <float>, // how far from shape outline (including bevelOffset) is bevel
-	 *  bevelOffset: <float>, // how far from shape outline does bevel start
-	 *  bevelSegments: <int>, // number of bevel layers
-	 *
-	 *  extrudePath: <THREE.Curve> // curve to extrude shape along
-	 *
-	 *  UVGenerator: <Object> // object that provides UV generator functions
-	 *
-	 * }
-	 */
-
-	// ExtrudeGeometry
-
-	function ExtrudeGeometry( shapes, options ) {
-
-		Geometry.call( this );
-
-		this.type = 'ExtrudeGeometry';
-
-		this.parameters = {
-			shapes: shapes,
-			options: options
-		};
-
-		this.fromBufferGeometry( new ExtrudeBufferGeometry( shapes, options ) );
-		this.mergeVertices();
-
-	}
-
-	ExtrudeGeometry.prototype = Object.create( Geometry.prototype );
-	ExtrudeGeometry.prototype.constructor = ExtrudeGeometry;
-
-	ExtrudeGeometry.prototype.toJSON = function () {
-
-		var data = Geometry.prototype.toJSON.call( this );
-
-		var shapes = this.parameters.shapes;
-		var options = this.parameters.options;
-
-		return toJSON( shapes, options, data );
-
-	};
-
-	// ExtrudeBufferGeometry
-
-	function ExtrudeBufferGeometry( shapes, options ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'ExtrudeBufferGeometry';
-
-		this.parameters = {
-			shapes: shapes,
-			options: options
-		};
-
-		shapes = Array.isArray( shapes ) ? shapes : [ shapes ];
-
-		var scope = this;
-
-		var verticesArray = [];
-		var uvArray = [];
-
-		for ( var i = 0, l = shapes.length; i < l; i ++ ) {
-
-			var shape = shapes[ i ];
-			addShape( shape );
-
-		}
-
-		// build geometry
-
-		this.addAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) );
-
-		this.computeVertexNormals();
-
-		// functions
-
-		function addShape( shape ) {
-
-			var placeholder = [];
-
-			// options
-
-			var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
-			var steps = options.steps !== undefined ? options.steps : 1;
-			var depth = options.depth !== undefined ? options.depth : 100;
-
-			var bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true;
-			var bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6;
-			var bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2;
-			var bevelOffset = options.bevelOffset !== undefined ? options.bevelOffset : 0;
-			var bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;
-
-			var extrudePath = options.extrudePath;
-
-			var uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator;
-
-			// deprecated options
-
-			if ( options.amount !== undefined ) {
-
-				console.warn( 'THREE.ExtrudeBufferGeometry: amount has been renamed to depth.' );
-				depth = options.amount;
-
-			}
-
-			//
-
-			var extrudePts, extrudeByPath = false;
-			var splineTube, binormal, normal, position2;
-
-			if ( extrudePath ) {
-
-				extrudePts = extrudePath.getSpacedPoints( steps );
-
-				extrudeByPath = true;
-				bevelEnabled = false; // bevels not supported for path extrusion
-
-				// SETUP TNB variables
-
-				// TODO1 - have a .isClosed in spline?
-
-				splineTube = extrudePath.computeFrenetFrames( steps, false );
-
-				// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);
-
-				binormal = new Vector3();
-				normal = new Vector3();
-				position2 = new Vector3();
-
-			}
-
-			// Safeguards if bevels are not enabled
-
-			if ( ! bevelEnabled ) {
-
-				bevelSegments = 0;
-				bevelThickness = 0;
-				bevelSize = 0;
-				bevelOffset = 0;
-
-			}
-
-			// Variables initialization
-
-			var ahole, h, hl; // looping of holes
-
-			var shapePoints = shape.extractPoints( curveSegments );
-
-			var vertices = shapePoints.shape;
-			var holes = shapePoints.holes;
-
-			var reverse = ! ShapeUtils.isClockWise( vertices );
-
-			if ( reverse ) {
-
-				vertices = vertices.reverse();
-
-				// Maybe we should also check if holes are in the opposite direction, just to be safe ...
-
-				for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-					ahole = holes[ h ];
-
-					if ( ShapeUtils.isClockWise( ahole ) ) {
-
-						holes[ h ] = ahole.reverse();
-
-					}
-
-				}
-
-			}
-
-
-			var faces = ShapeUtils.triangulateShape( vertices, holes );
-
-			/* Vertices */
-
-			var contour = vertices; // vertices has all points but contour has only points of circumference
-
-			for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-				ahole = holes[ h ];
-
-				vertices = vertices.concat( ahole );
-
-			}
-
-
-			function scalePt2( pt, vec, size ) {
-
-				if ( ! vec ) console.error( "THREE.ExtrudeGeometry: vec does not exist" );
-
-				return vec.clone().multiplyScalar( size ).add( pt );
-
-			}
-
-			var b, bs, t, z,
-				vert, vlen = vertices.length,
-				face, flen = faces.length;
-
-
-			// Find directions for point movement
-
-
-			function getBevelVec( inPt, inPrev, inNext ) {
-
-				// computes for inPt the corresponding point inPt' on a new contour
-				//   shifted by 1 unit (length of normalized vector) to the left
-				// if we walk along contour clockwise, this new contour is outside the old one
-				//
-				// inPt' is the intersection of the two lines parallel to the two
-				//  adjacent edges of inPt at a distance of 1 unit on the left side.
-
-				var v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt
-
-				// good reading for geometry algorithms (here: line-line intersection)
-				// http://geomalgorithms.com/a05-_intersect-1.html
-
-				var v_prev_x = inPt.x - inPrev.x,
-					v_prev_y = inPt.y - inPrev.y;
-				var v_next_x = inNext.x - inPt.x,
-					v_next_y = inNext.y - inPt.y;
-
-				var v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );
-
-				// check for collinear edges
-				var collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );
-
-				if ( Math.abs( collinear0 ) > Number.EPSILON ) {
-
-					// not collinear
-
-					// length of vectors for normalizing
-
-					var v_prev_len = Math.sqrt( v_prev_lensq );
-					var v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );
-
-					// shift adjacent points by unit vectors to the left
-
-					var ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );
-					var ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );
-
-					var ptNextShift_x = ( inNext.x - v_next_y / v_next_len );
-					var ptNextShift_y = ( inNext.y + v_next_x / v_next_len );
-
-					// scaling factor for v_prev to intersection point
-
-					var sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -
-							( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /
-						( v_prev_x * v_next_y - v_prev_y * v_next_x );
-
-					// vector from inPt to intersection point
-
-					v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );
-					v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );
-
-					// Don't normalize!, otherwise sharp corners become ugly
-					//  but prevent crazy spikes
-					var v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );
-					if ( v_trans_lensq <= 2 ) {
-
-						return new Vector2( v_trans_x, v_trans_y );
-
-					} else {
-
-						shrink_by = Math.sqrt( v_trans_lensq / 2 );
-
-					}
-
-				} else {
-
-					// handle special case of collinear edges
-
-					var direction_eq = false; // assumes: opposite
-					if ( v_prev_x > Number.EPSILON ) {
-
-						if ( v_next_x > Number.EPSILON ) {
-
-							direction_eq = true;
-
-						}
-
-					} else {
-
-						if ( v_prev_x < - Number.EPSILON ) {
-
-							if ( v_next_x < - Number.EPSILON ) {
-
-								direction_eq = true;
-
-							}
-
-						} else {
-
-							if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {
-
-								direction_eq = true;
-
-							}
-
-						}
-
-					}
-
-					if ( direction_eq ) {
-
-						// console.log("Warning: lines are a straight sequence");
-						v_trans_x = - v_prev_y;
-						v_trans_y = v_prev_x;
-						shrink_by = Math.sqrt( v_prev_lensq );
-
-					} else {
-
-						// console.log("Warning: lines are a straight spike");
-						v_trans_x = v_prev_x;
-						v_trans_y = v_prev_y;
-						shrink_by = Math.sqrt( v_prev_lensq / 2 );
-
-					}
-
-				}
-
-				return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );
-
-			}
-
-
-			var contourMovements = [];
-
-			for ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {
-
-				if ( j === il ) j = 0;
-				if ( k === il ) k = 0;
-
-				//  (j)---(i)---(k)
-				// console.log('i,j,k', i, j , k)
-
-				contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );
-
-			}
-
-			var holesMovements = [],
-				oneHoleMovements, verticesMovements = contourMovements.concat();
-
-			for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-				ahole = holes[ h ];
-
-				oneHoleMovements = [];
-
-				for ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {
-
-					if ( j === il ) j = 0;
-					if ( k === il ) k = 0;
-
-					//  (j)---(i)---(k)
-					oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );
-
-				}
-
-				holesMovements.push( oneHoleMovements );
-				verticesMovements = verticesMovements.concat( oneHoleMovements );
-
-			}
-
-
-			// Loop bevelSegments, 1 for the front, 1 for the back
-
-			for ( b = 0; b < bevelSegments; b ++ ) {
-
-				//for ( b = bevelSegments; b > 0; b -- ) {
-
-				t = b / bevelSegments;
-				z = bevelThickness * Math.cos( t * Math.PI / 2 );
-				bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset;
-
-				// contract shape
-
-				for ( i = 0, il = contour.length; i < il; i ++ ) {
-
-					vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
-
-					v( vert.x, vert.y, - z );
-
-				}
-
-				// expand holes
-
-				for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-					ahole = holes[ h ];
-					oneHoleMovements = holesMovements[ h ];
-
-					for ( i = 0, il = ahole.length; i < il; i ++ ) {
-
-						vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );
-
-						v( vert.x, vert.y, - z );
-
-					}
-
-				}
-
-			}
-
-			bs = bevelSize + bevelOffset;
-
-			// Back facing vertices
-
-			for ( i = 0; i < vlen; i ++ ) {
-
-				vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];
-
-				if ( ! extrudeByPath ) {
-
-					v( vert.x, vert.y, 0 );
-
-				} else {
-
-					// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );
-
-					normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );
-					binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );
-
-					position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );
-
-					v( position2.x, position2.y, position2.z );
-
-				}
-
-			}
-
-			// Add stepped vertices...
-			// Including front facing vertices
-
-			var s;
-
-			for ( s = 1; s <= steps; s ++ ) {
-
-				for ( i = 0; i < vlen; i ++ ) {
-
-					vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];
-
-					if ( ! extrudeByPath ) {
-
-						v( vert.x, vert.y, depth / steps * s );
-
-					} else {
-
-						// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );
-
-						normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );
-						binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );
-
-						position2.copy( extrudePts[ s ] ).add( normal ).add( binormal );
-
-						v( position2.x, position2.y, position2.z );
-
-					}
-
-				}
-
-			}
-
-
-			// Add bevel segments planes
-
-			//for ( b = 1; b <= bevelSegments; b ++ ) {
-			for ( b = bevelSegments - 1; b >= 0; b -- ) {
-
-				t = b / bevelSegments;
-				z = bevelThickness * Math.cos( t * Math.PI / 2 );
-				bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset;
-
-				// contract shape
-
-				for ( i = 0, il = contour.length; i < il; i ++ ) {
-
-					vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
-					v( vert.x, vert.y, depth + z );
-
-				}
-
-				// expand holes
-
-				for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-					ahole = holes[ h ];
-					oneHoleMovements = holesMovements[ h ];
-
-					for ( i = 0, il = ahole.length; i < il; i ++ ) {
-
-						vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );
-
-						if ( ! extrudeByPath ) {
-
-							v( vert.x, vert.y, depth + z );
-
-						} else {
-
-							v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );
-
-						}
-
-					}
-
-				}
-
-			}
-
-			/* Faces */
-
-			// Top and bottom faces
-
-			buildLidFaces();
-
-			// Sides faces
-
-			buildSideFaces();
-
-
-			/////  Internal functions
-
-			function buildLidFaces() {
-
-				var start = verticesArray.length / 3;
-
-				if ( bevelEnabled ) {
-
-					var layer = 0; // steps + 1
-					var offset = vlen * layer;
-
-					// Bottom faces
-
-					for ( i = 0; i < flen; i ++ ) {
-
-						face = faces[ i ];
-						f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );
-
-					}
-
-					layer = steps + bevelSegments * 2;
-					offset = vlen * layer;
-
-					// Top faces
-
-					for ( i = 0; i < flen; i ++ ) {
-
-						face = faces[ i ];
-						f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );
-
-					}
-
-				} else {
-
-					// Bottom faces
-
-					for ( i = 0; i < flen; i ++ ) {
-
-						face = faces[ i ];
-						f3( face[ 2 ], face[ 1 ], face[ 0 ] );
-
-					}
-
-					// Top faces
-
-					for ( i = 0; i < flen; i ++ ) {
-
-						face = faces[ i ];
-						f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );
-
-					}
-
-				}
-
-				scope.addGroup( start, verticesArray.length / 3 - start, 0 );
-
-			}
-
-			// Create faces for the z-sides of the shape
-
-			function buildSideFaces() {
-
-				var start = verticesArray.length / 3;
-				var layeroffset = 0;
-				sidewalls( contour, layeroffset );
-				layeroffset += contour.length;
-
-				for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-					ahole = holes[ h ];
-					sidewalls( ahole, layeroffset );
-
-					//, true
-					layeroffset += ahole.length;
-
-				}
-
-
-				scope.addGroup( start, verticesArray.length / 3 - start, 1 );
-
-
-			}
-
-			function sidewalls( contour, layeroffset ) {
-
-				var j, k;
-				i = contour.length;
-
-				while ( -- i >= 0 ) {
-
-					j = i;
-					k = i - 1;
-					if ( k < 0 ) k = contour.length - 1;
-
-					//console.log('b', i,j, i-1, k,vertices.length);
-
-					var s = 0,
-						sl = steps + bevelSegments * 2;
-
-					for ( s = 0; s < sl; s ++ ) {
-
-						var slen1 = vlen * s;
-						var slen2 = vlen * ( s + 1 );
-
-						var a = layeroffset + j + slen1,
-							b = layeroffset + k + slen1,
-							c = layeroffset + k + slen2,
-							d = layeroffset + j + slen2;
-
-						f4( a, b, c, d );
-
-					}
-
-				}
-
-			}
-
-			function v( x, y, z ) {
-
-				placeholder.push( x );
-				placeholder.push( y );
-				placeholder.push( z );
-
-			}
-
-
-			function f3( a, b, c ) {
-
-				addVertex( a );
-				addVertex( b );
-				addVertex( c );
-
-				var nextIndex = verticesArray.length / 3;
-				var uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );
-
-				addUV( uvs[ 0 ] );
-				addUV( uvs[ 1 ] );
-				addUV( uvs[ 2 ] );
-
-			}
-
-			function f4( a, b, c, d ) {
-
-				addVertex( a );
-				addVertex( b );
-				addVertex( d );
-
-				addVertex( b );
-				addVertex( c );
-				addVertex( d );
-
-
-				var nextIndex = verticesArray.length / 3;
-				var uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );
-
-				addUV( uvs[ 0 ] );
-				addUV( uvs[ 1 ] );
-				addUV( uvs[ 3 ] );
-
-				addUV( uvs[ 1 ] );
-				addUV( uvs[ 2 ] );
-				addUV( uvs[ 3 ] );
-
-			}
-
-			function addVertex( index ) {
-
-				verticesArray.push( placeholder[ index * 3 + 0 ] );
-				verticesArray.push( placeholder[ index * 3 + 1 ] );
-				verticesArray.push( placeholder[ index * 3 + 2 ] );
-
-			}
-
-
-			function addUV( vector2 ) {
-
-				uvArray.push( vector2.x );
-				uvArray.push( vector2.y );
-
-			}
-
-		}
-
-	}
-
-	ExtrudeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	ExtrudeBufferGeometry.prototype.constructor = ExtrudeBufferGeometry;
-
-	ExtrudeBufferGeometry.prototype.toJSON = function () {
-
-		var data = BufferGeometry.prototype.toJSON.call( this );
-
-		var shapes = this.parameters.shapes;
-		var options = this.parameters.options;
-
-		return toJSON( shapes, options, data );
-
-	};
-
-	//
-
-	var WorldUVGenerator = {
-
-		generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {
-
-			var a_x = vertices[ indexA * 3 ];
-			var a_y = vertices[ indexA * 3 + 1 ];
-			var b_x = vertices[ indexB * 3 ];
-			var b_y = vertices[ indexB * 3 + 1 ];
-			var c_x = vertices[ indexC * 3 ];
-			var c_y = vertices[ indexC * 3 + 1 ];
-
-			return [
-				new Vector2( a_x, a_y ),
-				new Vector2( b_x, b_y ),
-				new Vector2( c_x, c_y )
-			];
-
-		},
-
-		generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {
-
-			var a_x = vertices[ indexA * 3 ];
-			var a_y = vertices[ indexA * 3 + 1 ];
-			var a_z = vertices[ indexA * 3 + 2 ];
-			var b_x = vertices[ indexB * 3 ];
-			var b_y = vertices[ indexB * 3 + 1 ];
-			var b_z = vertices[ indexB * 3 + 2 ];
-			var c_x = vertices[ indexC * 3 ];
-			var c_y = vertices[ indexC * 3 + 1 ];
-			var c_z = vertices[ indexC * 3 + 2 ];
-			var d_x = vertices[ indexD * 3 ];
-			var d_y = vertices[ indexD * 3 + 1 ];
-			var d_z = vertices[ indexD * 3 + 2 ];
-
-			if ( Math.abs( a_y - b_y ) < 0.01 ) {
-
-				return [
-					new Vector2( a_x, 1 - a_z ),
-					new Vector2( b_x, 1 - b_z ),
-					new Vector2( c_x, 1 - c_z ),
-					new Vector2( d_x, 1 - d_z )
-				];
-
-			} else {
-
-				return [
-					new Vector2( a_y, 1 - a_z ),
-					new Vector2( b_y, 1 - b_z ),
-					new Vector2( c_y, 1 - c_z ),
-					new Vector2( d_y, 1 - d_z )
-				];
-
-			}
-
-		}
-	};
-
-	function toJSON( shapes, options, data ) {
-
-		//
-
-		data.shapes = [];
-
-		if ( Array.isArray( shapes ) ) {
-
-			for ( var i = 0, l = shapes.length; i < l; i ++ ) {
-
-				var shape = shapes[ i ];
-
-				data.shapes.push( shape.uuid );
-
-			}
-
-		} else {
-
-			data.shapes.push( shapes.uuid );
-
-		}
-
-		//
-
-		if ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON();
-
-		return data;
-
-	}
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * Text = 3D Text
-	 *
-	 * parameters = {
-	 *  font: <THREE.Font>, // font
-	 *
-	 *  size: <float>, // size of the text
-	 *  height: <float>, // thickness to extrude text
-	 *  curveSegments: <int>, // number of points on the curves
-	 *
-	 *  bevelEnabled: <bool>, // turn on bevel
-	 *  bevelThickness: <float>, // how deep into text bevel goes
-	 *  bevelSize: <float>, // how far from text outline (including bevelOffset) is bevel
-	 *  bevelOffset: <float> // how far from text outline does bevel start
-	 * }
-	 */
-
-	// TextGeometry
-
-	function TextGeometry( text, parameters ) {
-
-		Geometry.call( this );
-
-		this.type = 'TextGeometry';
-
-		this.parameters = {
-			text: text,
-			parameters: parameters
-		};
-
-		this.fromBufferGeometry( new TextBufferGeometry( text, parameters ) );
-		this.mergeVertices();
-
-	}
-
-	TextGeometry.prototype = Object.create( Geometry.prototype );
-	TextGeometry.prototype.constructor = TextGeometry;
-
-	// TextBufferGeometry
-
-	function TextBufferGeometry( text, parameters ) {
-
-		parameters = parameters || {};
-
-		var font = parameters.font;
-
-		if ( ! ( font && font.isFont ) ) {
-
-			console.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' );
-			return new Geometry();
-
-		}
-
-		var shapes = font.generateShapes( text, parameters.size );
-
-		// translate parameters to ExtrudeGeometry API
-
-		parameters.depth = parameters.height !== undefined ? parameters.height : 50;
-
-		// defaults
-
-		if ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10;
-		if ( parameters.bevelSize === undefined ) parameters.bevelSize = 8;
-		if ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false;
-
-		ExtrudeBufferGeometry.call( this, shapes, parameters );
-
-		this.type = 'TextBufferGeometry';
-
-	}
-
-	TextBufferGeometry.prototype = Object.create( ExtrudeBufferGeometry.prototype );
-	TextBufferGeometry.prototype.constructor = TextBufferGeometry;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// SphereGeometry
-
-	function SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'SphereGeometry';
-
-		this.parameters = {
-			radius: radius,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments,
-			phiStart: phiStart,
-			phiLength: phiLength,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		this.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );
-		this.mergeVertices();
-
-	}
-
-	SphereGeometry.prototype = Object.create( Geometry.prototype );
-	SphereGeometry.prototype.constructor = SphereGeometry;
-
-	// SphereBufferGeometry
-
-	function SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'SphereBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments,
-			phiStart: phiStart,
-			phiLength: phiLength,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		radius = radius || 1;
-
-		widthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );
-		heightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );
-
-		phiStart = phiStart !== undefined ? phiStart : 0;
-		phiLength = phiLength !== undefined ? phiLength : Math.PI * 2;
-
-		thetaStart = thetaStart !== undefined ? thetaStart : 0;
-		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI;
-
-		var thetaEnd = Math.min( thetaStart + thetaLength, Math.PI );
-
-		var ix, iy;
-
-		var index = 0;
-		var grid = [];
-
-		var vertex = new Vector3();
-		var normal = new Vector3();
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// generate vertices, normals and uvs
-
-		for ( iy = 0; iy <= heightSegments; iy ++ ) {
-
-			var verticesRow = [];
-
-			var v = iy / heightSegments;
-
-			// special case for the poles
-
-			var uOffset = 0;
-
-			if ( iy == 0 && thetaStart == 0 ) {
-
-				uOffset = 0.5 / widthSegments;
-
-			} else if ( iy == heightSegments && thetaEnd == Math.PI ) {
-
-				uOffset = - 0.5 / widthSegments;
-
-			}
-
-			for ( ix = 0; ix <= widthSegments; ix ++ ) {
-
-				var u = ix / widthSegments;
-
-				// vertex
-
-				vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
-				vertex.y = radius * Math.cos( thetaStart + v * thetaLength );
-				vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal
-
-				normal.copy( vertex ).normalize();
-				normals.push( normal.x, normal.y, normal.z );
-
-				// uv
-
-				uvs.push( u + uOffset, 1 - v );
-
-				verticesRow.push( index ++ );
-
-			}
-
-			grid.push( verticesRow );
-
-		}
-
-		// indices
-
-		for ( iy = 0; iy < heightSegments; iy ++ ) {
-
-			for ( ix = 0; ix < widthSegments; ix ++ ) {
-
-				var a = grid[ iy ][ ix + 1 ];
-				var b = grid[ iy ][ ix ];
-				var c = grid[ iy + 1 ][ ix ];
-				var d = grid[ iy + 1 ][ ix + 1 ];
-
-				if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );
-				if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	SphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	SphereBufferGeometry.prototype.constructor = SphereBufferGeometry;
-
-	/**
-	 * @author Kaleb Murphy
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// RingGeometry
-
-	function RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'RingGeometry';
-
-		this.parameters = {
-			innerRadius: innerRadius,
-			outerRadius: outerRadius,
-			thetaSegments: thetaSegments,
-			phiSegments: phiSegments,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		this.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) );
-		this.mergeVertices();
-
-	}
-
-	RingGeometry.prototype = Object.create( Geometry.prototype );
-	RingGeometry.prototype.constructor = RingGeometry;
-
-	// RingBufferGeometry
-
-	function RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'RingBufferGeometry';
-
-		this.parameters = {
-			innerRadius: innerRadius,
-			outerRadius: outerRadius,
-			thetaSegments: thetaSegments,
-			phiSegments: phiSegments,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		innerRadius = innerRadius || 0.5;
-		outerRadius = outerRadius || 1;
-
-		thetaStart = thetaStart !== undefined ? thetaStart : 0;
-		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
-
-		thetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;
-		phiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// some helper variables
-
-		var segment;
-		var radius = innerRadius;
-		var radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );
-		var vertex = new Vector3();
-		var uv = new Vector2();
-		var j, i;
-
-		// generate vertices, normals and uvs
-
-		for ( j = 0; j <= phiSegments; j ++ ) {
-
-			for ( i = 0; i <= thetaSegments; i ++ ) {
-
-				// values are generate from the inside of the ring to the outside
-
-				segment = thetaStart + i / thetaSegments * thetaLength;
-
-				// vertex
-
-				vertex.x = radius * Math.cos( segment );
-				vertex.y = radius * Math.sin( segment );
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal
-
-				normals.push( 0, 0, 1 );
-
-				// uv
-
-				uv.x = ( vertex.x / outerRadius + 1 ) / 2;
-				uv.y = ( vertex.y / outerRadius + 1 ) / 2;
-
-				uvs.push( uv.x, uv.y );
-
-			}
-
-			// increase the radius for next row of vertices
-
-			radius += radiusStep;
-
-		}
-
-		// indices
-
-		for ( j = 0; j < phiSegments; j ++ ) {
-
-			var thetaSegmentLevel = j * ( thetaSegments + 1 );
-
-			for ( i = 0; i < thetaSegments; i ++ ) {
-
-				segment = i + thetaSegmentLevel;
-
-				var a = segment;
-				var b = segment + thetaSegments + 1;
-				var c = segment + thetaSegments + 2;
-				var d = segment + 1;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	RingBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	RingBufferGeometry.prototype.constructor = RingBufferGeometry;
-
-	/**
-	 * @author zz85 / https://github.com/zz85
-	 * @author bhouston / http://clara.io
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// LatheGeometry
-
-	function LatheGeometry( points, segments, phiStart, phiLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'LatheGeometry';
-
-		this.parameters = {
-			points: points,
-			segments: segments,
-			phiStart: phiStart,
-			phiLength: phiLength
-		};
-
-		this.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) );
-		this.mergeVertices();
-
-	}
-
-	LatheGeometry.prototype = Object.create( Geometry.prototype );
-	LatheGeometry.prototype.constructor = LatheGeometry;
-
-	// LatheBufferGeometry
-
-	function LatheBufferGeometry( points, segments, phiStart, phiLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'LatheBufferGeometry';
-
-		this.parameters = {
-			points: points,
-			segments: segments,
-			phiStart: phiStart,
-			phiLength: phiLength
-		};
-
-		segments = Math.floor( segments ) || 12;
-		phiStart = phiStart || 0;
-		phiLength = phiLength || Math.PI * 2;
-
-		// clamp phiLength so it's in range of [ 0, 2PI ]
-
-		phiLength = _Math.clamp( phiLength, 0, Math.PI * 2 );
-
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var uvs = [];
-
-		// helper variables
-
-		var base;
-		var inverseSegments = 1.0 / segments;
-		var vertex = new Vector3();
-		var uv = new Vector2();
-		var i, j;
-
-		// generate vertices and uvs
-
-		for ( i = 0; i <= segments; i ++ ) {
-
-			var phi = phiStart + i * inverseSegments * phiLength;
-
-			var sin = Math.sin( phi );
-			var cos = Math.cos( phi );
-
-			for ( j = 0; j <= ( points.length - 1 ); j ++ ) {
-
-				// vertex
-
-				vertex.x = points[ j ].x * sin;
-				vertex.y = points[ j ].y;
-				vertex.z = points[ j ].x * cos;
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// uv
-
-				uv.x = i / segments;
-				uv.y = j / ( points.length - 1 );
-
-				uvs.push( uv.x, uv.y );
-
-
-			}
-
-		}
-
-		// indices
-
-		for ( i = 0; i < segments; i ++ ) {
-
-			for ( j = 0; j < ( points.length - 1 ); j ++ ) {
-
-				base = j + i * points.length;
-
-				var a = base;
-				var b = base + points.length;
-				var c = base + points.length + 1;
-				var d = base + 1;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		// generate normals
-
-		this.computeVertexNormals();
-
-		// if the geometry is closed, we need to average the normals along the seam.
-		// because the corresponding vertices are identical (but still have different UVs).
-
-		if ( phiLength === Math.PI * 2 ) {
-
-			var normals = this.attributes.normal.array;
-			var n1 = new Vector3();
-			var n2 = new Vector3();
-			var n = new Vector3();
-
-			// this is the buffer offset for the last line of vertices
-
-			base = segments * points.length * 3;
-
-			for ( i = 0, j = 0; i < points.length; i ++, j += 3 ) {
-
-				// select the normal of the vertex in the first line
-
-				n1.x = normals[ j + 0 ];
-				n1.y = normals[ j + 1 ];
-				n1.z = normals[ j + 2 ];
-
-				// select the normal of the vertex in the last line
-
-				n2.x = normals[ base + j + 0 ];
-				n2.y = normals[ base + j + 1 ];
-				n2.z = normals[ base + j + 2 ];
-
-				// average normals
-
-				n.addVectors( n1, n2 ).normalize();
-
-				// assign the new values to both normals
-
-				normals[ j + 0 ] = normals[ base + j + 0 ] = n.x;
-				normals[ j + 1 ] = normals[ base + j + 1 ] = n.y;
-				normals[ j + 2 ] = normals[ base + j + 2 ] = n.z;
-
-			}
-
-		}
-
-	}
-
-	LatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	LatheBufferGeometry.prototype.constructor = LatheBufferGeometry;
-
-	/**
-	 * @author jonobr1 / http://jonobr1.com
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// ShapeGeometry
-
-	function ShapeGeometry( shapes, curveSegments ) {
-
-		Geometry.call( this );
-
-		this.type = 'ShapeGeometry';
-
-		if ( typeof curveSegments === 'object' ) {
-
-			console.warn( 'THREE.ShapeGeometry: Options parameter has been removed.' );
-
-			curveSegments = curveSegments.curveSegments;
-
-		}
-
-		this.parameters = {
-			shapes: shapes,
-			curveSegments: curveSegments
-		};
-
-		this.fromBufferGeometry( new ShapeBufferGeometry( shapes, curveSegments ) );
-		this.mergeVertices();
-
-	}
-
-	ShapeGeometry.prototype = Object.create( Geometry.prototype );
-	ShapeGeometry.prototype.constructor = ShapeGeometry;
-
-	ShapeGeometry.prototype.toJSON = function () {
-
-		var data = Geometry.prototype.toJSON.call( this );
-
-		var shapes = this.parameters.shapes;
-
-		return toJSON$1( shapes, data );
-
-	};
-
-	// ShapeBufferGeometry
-
-	function ShapeBufferGeometry( shapes, curveSegments ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'ShapeBufferGeometry';
-
-		this.parameters = {
-			shapes: shapes,
-			curveSegments: curveSegments
-		};
-
-		curveSegments = curveSegments || 12;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var groupStart = 0;
-		var groupCount = 0;
-
-		// allow single and array values for "shapes" parameter
-
-		if ( Array.isArray( shapes ) === false ) {
-
-			addShape( shapes );
-
-		} else {
-
-			for ( var i = 0; i < shapes.length; i ++ ) {
-
-				addShape( shapes[ i ] );
-
-				this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support
-
-				groupStart += groupCount;
-				groupCount = 0;
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-
-		// helper functions
-
-		function addShape( shape ) {
-
-			var i, l, shapeHole;
-
-			var indexOffset = vertices.length / 3;
-			var points = shape.extractPoints( curveSegments );
-
-			var shapeVertices = points.shape;
-			var shapeHoles = points.holes;
-
-			// check direction of vertices
-
-			if ( ShapeUtils.isClockWise( shapeVertices ) === false ) {
-
-				shapeVertices = shapeVertices.reverse();
-
-			}
-
-			for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {
-
-				shapeHole = shapeHoles[ i ];
-
-				if ( ShapeUtils.isClockWise( shapeHole ) === true ) {
-
-					shapeHoles[ i ] = shapeHole.reverse();
-
-				}
-
-			}
-
-			var faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );
-
-			// join vertices of inner and outer paths to a single array
-
-			for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {
-
-				shapeHole = shapeHoles[ i ];
-				shapeVertices = shapeVertices.concat( shapeHole );
-
-			}
-
-			// vertices, normals, uvs
-
-			for ( i = 0, l = shapeVertices.length; i < l; i ++ ) {
-
-				var vertex = shapeVertices[ i ];
-
-				vertices.push( vertex.x, vertex.y, 0 );
-				normals.push( 0, 0, 1 );
-				uvs.push( vertex.x, vertex.y ); // world uvs
-
-			}
-
-			// incides
-
-			for ( i = 0, l = faces.length; i < l; i ++ ) {
-
-				var face = faces[ i ];
-
-				var a = face[ 0 ] + indexOffset;
-				var b = face[ 1 ] + indexOffset;
-				var c = face[ 2 ] + indexOffset;
-
-				indices.push( a, b, c );
-				groupCount += 3;
-
-			}
-
-		}
-
-	}
-
-	ShapeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	ShapeBufferGeometry.prototype.constructor = ShapeBufferGeometry;
-
-	ShapeBufferGeometry.prototype.toJSON = function () {
-
-		var data = BufferGeometry.prototype.toJSON.call( this );
-
-		var shapes = this.parameters.shapes;
-
-		return toJSON$1( shapes, data );
-
-	};
-
-	//
-
-	function toJSON$1( shapes, data ) {
-
-		data.shapes = [];
-
-		if ( Array.isArray( shapes ) ) {
-
-			for ( var i = 0, l = shapes.length; i < l; i ++ ) {
-
-				var shape = shapes[ i ];
-
-				data.shapes.push( shape.uuid );
-
-			}
-
-		} else {
-
-			data.shapes.push( shapes.uuid );
-
-		}
-
-		return data;
-
-	}
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function EdgesGeometry( geometry, thresholdAngle ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'EdgesGeometry';
-
-		this.parameters = {
-			thresholdAngle: thresholdAngle
-		};
-
-		thresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;
-
-		// buffer
-
-		var vertices = [];
-
-		// helper variables
-
-		var thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle );
-		var edge = [ 0, 0 ], edges = {}, edge1, edge2;
-		var key, keys = [ 'a', 'b', 'c' ];
-
-		// prepare source geometry
-
-		var geometry2;
-
-		if ( geometry.isBufferGeometry ) {
-
-			geometry2 = new Geometry();
-			geometry2.fromBufferGeometry( geometry );
-
-		} else {
-
-			geometry2 = geometry.clone();
-
-		}
-
-		geometry2.mergeVertices();
-		geometry2.computeFaceNormals();
-
-		var sourceVertices = geometry2.vertices;
-		var faces = geometry2.faces;
-
-		// now create a data structure where each entry represents an edge with its adjoining faces
-
-		for ( var i = 0, l = faces.length; i < l; i ++ ) {
-
-			var face = faces[ i ];
-
-			for ( var j = 0; j < 3; j ++ ) {
-
-				edge1 = face[ keys[ j ] ];
-				edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
-				edge[ 0 ] = Math.min( edge1, edge2 );
-				edge[ 1 ] = Math.max( edge1, edge2 );
-
-				key = edge[ 0 ] + ',' + edge[ 1 ];
-
-				if ( edges[ key ] === undefined ) {
-
-					edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ], face1: i, face2: undefined };
-
-				} else {
-
-					edges[ key ].face2 = i;
-
-				}
-
-			}
-
-		}
-
-		// generate vertices
-
-		for ( key in edges ) {
-
-			var e = edges[ key ];
-
-			// an edge is only rendered if the angle (in degrees) between the face normals of the adjoining faces exceeds this value. default = 1 degree.
-
-			if ( e.face2 === undefined || faces[ e.face1 ].normal.dot( faces[ e.face2 ].normal ) <= thresholdDot ) {
-
-				var vertex = sourceVertices[ e.index1 ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				vertex = sourceVertices[ e.index2 ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-
-	}
-
-	EdgesGeometry.prototype = Object.create( BufferGeometry.prototype );
-	EdgesGeometry.prototype.constructor = EdgesGeometry;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// CylinderGeometry
-
-	function CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'CylinderGeometry';
-
-		this.parameters = {
-			radiusTop: radiusTop,
-			radiusBottom: radiusBottom,
-			height: height,
-			radialSegments: radialSegments,
-			heightSegments: heightSegments,
-			openEnded: openEnded,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		this.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) );
-		this.mergeVertices();
-
-	}
-
-	CylinderGeometry.prototype = Object.create( Geometry.prototype );
-	CylinderGeometry.prototype.constructor = CylinderGeometry;
-
-	// CylinderBufferGeometry
-
-	function CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'CylinderBufferGeometry';
-
-		this.parameters = {
-			radiusTop: radiusTop,
-			radiusBottom: radiusBottom,
-			height: height,
-			radialSegments: radialSegments,
-			heightSegments: heightSegments,
-			openEnded: openEnded,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		var scope = this;
-
-		radiusTop = radiusTop !== undefined ? radiusTop : 1;
-		radiusBottom = radiusBottom !== undefined ? radiusBottom : 1;
-		height = height || 1;
-
-		radialSegments = Math.floor( radialSegments ) || 8;
-		heightSegments = Math.floor( heightSegments ) || 1;
-
-		openEnded = openEnded !== undefined ? openEnded : false;
-		thetaStart = thetaStart !== undefined ? thetaStart : 0.0;
-		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var index = 0;
-		var indexArray = [];
-		var halfHeight = height / 2;
-		var groupStart = 0;
-
-		// generate geometry
-
-		generateTorso();
-
-		if ( openEnded === false ) {
-
-			if ( radiusTop > 0 ) generateCap( true );
-			if ( radiusBottom > 0 ) generateCap( false );
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		function generateTorso() {
-
-			var x, y;
-			var normal = new Vector3();
-			var vertex = new Vector3();
-
-			var groupCount = 0;
-
-			// this will be used to calculate the normal
-			var slope = ( radiusBottom - radiusTop ) / height;
-
-			// generate vertices, normals and uvs
-
-			for ( y = 0; y <= heightSegments; y ++ ) {
-
-				var indexRow = [];
-
-				var v = y / heightSegments;
-
-				// calculate the radius of the current row
-
-				var radius = v * ( radiusBottom - radiusTop ) + radiusTop;
-
-				for ( x = 0; x <= radialSegments; x ++ ) {
-
-					var u = x / radialSegments;
-
-					var theta = u * thetaLength + thetaStart;
-
-					var sinTheta = Math.sin( theta );
-					var cosTheta = Math.cos( theta );
-
-					// vertex
-
-					vertex.x = radius * sinTheta;
-					vertex.y = - v * height + halfHeight;
-					vertex.z = radius * cosTheta;
-					vertices.push( vertex.x, vertex.y, vertex.z );
-
-					// normal
-
-					normal.set( sinTheta, slope, cosTheta ).normalize();
-					normals.push( normal.x, normal.y, normal.z );
-
-					// uv
-
-					uvs.push( u, 1 - v );
-
-					// save index of vertex in respective row
-
-					indexRow.push( index ++ );
-
-				}
-
-				// now save vertices of the row in our index array
-
-				indexArray.push( indexRow );
-
-			}
-
-			// generate indices
-
-			for ( x = 0; x < radialSegments; x ++ ) {
-
-				for ( y = 0; y < heightSegments; y ++ ) {
-
-					// we use the index array to access the correct indices
-
-					var a = indexArray[ y ][ x ];
-					var b = indexArray[ y + 1 ][ x ];
-					var c = indexArray[ y + 1 ][ x + 1 ];
-					var d = indexArray[ y ][ x + 1 ];
-
-					// faces
-
-					indices.push( a, b, d );
-					indices.push( b, c, d );
-
-					// update group counter
-
-					groupCount += 6;
-
-				}
-
-			}
-
-			// add a group to the geometry. this will ensure multi material support
-
-			scope.addGroup( groupStart, groupCount, 0 );
-
-			// calculate new start value for groups
-
-			groupStart += groupCount;
-
-		}
-
-		function generateCap( top ) {
-
-			var x, centerIndexStart, centerIndexEnd;
-
-			var uv = new Vector2();
-			var vertex = new Vector3();
-
-			var groupCount = 0;
-
-			var radius = ( top === true ) ? radiusTop : radiusBottom;
-			var sign = ( top === true ) ? 1 : - 1;
-
-			// save the index of the first center vertex
-			centerIndexStart = index;
-
-			// first we generate the center vertex data of the cap.
-			// because the geometry needs one set of uvs per face,
-			// we must generate a center vertex per face/segment
-
-			for ( x = 1; x <= radialSegments; x ++ ) {
-
-				// vertex
-
-				vertices.push( 0, halfHeight * sign, 0 );
-
-				// normal
-
-				normals.push( 0, sign, 0 );
-
-				// uv
-
-				uvs.push( 0.5, 0.5 );
-
-				// increase index
-
-				index ++;
-
-			}
-
-			// save the index of the last center vertex
-
-			centerIndexEnd = index;
-
-			// now we generate the surrounding vertices, normals and uvs
-
-			for ( x = 0; x <= radialSegments; x ++ ) {
-
-				var u = x / radialSegments;
-				var theta = u * thetaLength + thetaStart;
-
-				var cosTheta = Math.cos( theta );
-				var sinTheta = Math.sin( theta );
-
-				// vertex
-
-				vertex.x = radius * sinTheta;
-				vertex.y = halfHeight * sign;
-				vertex.z = radius * cosTheta;
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal
-
-				normals.push( 0, sign, 0 );
-
-				// uv
-
-				uv.x = ( cosTheta * 0.5 ) + 0.5;
-				uv.y = ( sinTheta * 0.5 * sign ) + 0.5;
-				uvs.push( uv.x, uv.y );
-
-				// increase index
-
-				index ++;
-
-			}
-
-			// generate indices
-
-			for ( x = 0; x < radialSegments; x ++ ) {
-
-				var c = centerIndexStart + x;
-				var i = centerIndexEnd + x;
-
-				if ( top === true ) {
-
-					// face top
-
-					indices.push( i, i + 1, c );
-
-				} else {
-
-					// face bottom
-
-					indices.push( i + 1, i, c );
-
-				}
-
-				groupCount += 3;
-
-			}
-
-			// add a group to the geometry. this will ensure multi material support
-
-			scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );
-
-			// calculate new start value for groups
-
-			groupStart += groupCount;
-
-		}
-
-	}
-
-	CylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	CylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry;
-
-	/**
-	 * @author abelnation / http://github.com/abelnation
-	 */
-
-	// ConeGeometry
-
-	function ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
-
-		CylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );
-
-		this.type = 'ConeGeometry';
-
-		this.parameters = {
-			radius: radius,
-			height: height,
-			radialSegments: radialSegments,
-			heightSegments: heightSegments,
-			openEnded: openEnded,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-	}
-
-	ConeGeometry.prototype = Object.create( CylinderGeometry.prototype );
-	ConeGeometry.prototype.constructor = ConeGeometry;
-
-	// ConeBufferGeometry
-
-	function ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
-
-		CylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );
-
-		this.type = 'ConeBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			height: height,
-			radialSegments: radialSegments,
-			heightSegments: heightSegments,
-			openEnded: openEnded,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-	}
-
-	ConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype );
-	ConeBufferGeometry.prototype.constructor = ConeBufferGeometry;
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 * @author Mugen87 / https://github.com/Mugen87
-	 * @author hughes
-	 */
-
-	// CircleGeometry
-
-	function CircleGeometry( radius, segments, thetaStart, thetaLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'CircleGeometry';
-
-		this.parameters = {
-			radius: radius,
-			segments: segments,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		this.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );
-		this.mergeVertices();
-
-	}
-
-	CircleGeometry.prototype = Object.create( Geometry.prototype );
-	CircleGeometry.prototype.constructor = CircleGeometry;
-
-	// CircleBufferGeometry
-
-	function CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'CircleBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			segments: segments,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		radius = radius || 1;
-		segments = segments !== undefined ? Math.max( 3, segments ) : 8;
-
-		thetaStart = thetaStart !== undefined ? thetaStart : 0;
-		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var i, s;
-		var vertex = new Vector3();
-		var uv = new Vector2();
-
-		// center point
-
-		vertices.push( 0, 0, 0 );
-		normals.push( 0, 0, 1 );
-		uvs.push( 0.5, 0.5 );
-
-		for ( s = 0, i = 3; s <= segments; s ++, i += 3 ) {
-
-			var segment = thetaStart + s / segments * thetaLength;
-
-			// vertex
-
-			vertex.x = radius * Math.cos( segment );
-			vertex.y = radius * Math.sin( segment );
-
-			vertices.push( vertex.x, vertex.y, vertex.z );
-
-			// normal
-
-			normals.push( 0, 0, 1 );
-
-			// uvs
-
-			uv.x = ( vertices[ i ] / radius + 1 ) / 2;
-			uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;
-
-			uvs.push( uv.x, uv.y );
-
-		}
-
-		// indices
-
-		for ( i = 1; i <= segments; i ++ ) {
-
-			indices.push( i, i + 1, 0 );
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	CircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	CircleBufferGeometry.prototype.constructor = CircleBufferGeometry;
-
-
-
-	var Geometries = /*#__PURE__*/Object.freeze({
-		WireframeGeometry: WireframeGeometry,
-		ParametricGeometry: ParametricGeometry,
-		ParametricBufferGeometry: ParametricBufferGeometry,
-		TetrahedronGeometry: TetrahedronGeometry,
-		TetrahedronBufferGeometry: TetrahedronBufferGeometry,
-		OctahedronGeometry: OctahedronGeometry,
-		OctahedronBufferGeometry: OctahedronBufferGeometry,
-		IcosahedronGeometry: IcosahedronGeometry,
-		IcosahedronBufferGeometry: IcosahedronBufferGeometry,
-		DodecahedronGeometry: DodecahedronGeometry,
-		DodecahedronBufferGeometry: DodecahedronBufferGeometry,
-		PolyhedronGeometry: PolyhedronGeometry,
-		PolyhedronBufferGeometry: PolyhedronBufferGeometry,
-		TubeGeometry: TubeGeometry,
-		TubeBufferGeometry: TubeBufferGeometry,
-		TorusKnotGeometry: TorusKnotGeometry,
-		TorusKnotBufferGeometry: TorusKnotBufferGeometry,
-		TorusGeometry: TorusGeometry,
-		TorusBufferGeometry: TorusBufferGeometry,
-		TextGeometry: TextGeometry,
-		TextBufferGeometry: TextBufferGeometry,
-		SphereGeometry: SphereGeometry,
-		SphereBufferGeometry: SphereBufferGeometry,
-		RingGeometry: RingGeometry,
-		RingBufferGeometry: RingBufferGeometry,
-		PlaneGeometry: PlaneGeometry,
-		PlaneBufferGeometry: PlaneBufferGeometry,
-		LatheGeometry: LatheGeometry,
-		LatheBufferGeometry: LatheBufferGeometry,
-		ShapeGeometry: ShapeGeometry,
-		ShapeBufferGeometry: ShapeBufferGeometry,
-		ExtrudeGeometry: ExtrudeGeometry,
-		ExtrudeBufferGeometry: ExtrudeBufferGeometry,
-		EdgesGeometry: EdgesGeometry,
-		ConeGeometry: ConeGeometry,
-		ConeBufferGeometry: ConeBufferGeometry,
-		CylinderGeometry: CylinderGeometry,
-		CylinderBufferGeometry: CylinderBufferGeometry,
-		CircleGeometry: CircleGeometry,
-		CircleBufferGeometry: CircleBufferGeometry,
-		BoxGeometry: BoxGeometry,
-		BoxBufferGeometry: BoxBufferGeometry
-	});
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 *
-	 * parameters = {
-	 *  color: <THREE.Color>
-	 * }
-	 */
-
-	function ShadowMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'ShadowMaterial';
-
-		this.color = new Color( 0x000000 );
-		this.transparent = true;
-
-		this.setValues( parameters );
-
-	}
-
-	ShadowMaterial.prototype = Object.create( Material.prototype );
-	ShadowMaterial.prototype.constructor = ShadowMaterial;
-
-	ShadowMaterial.prototype.isShadowMaterial = true;
-
-	ShadowMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function RawShaderMaterial( parameters ) {
-
-		ShaderMaterial.call( this, parameters );
-
-		this.type = 'RawShaderMaterial';
-
-	}
-
-	RawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype );
-	RawShaderMaterial.prototype.constructor = RawShaderMaterial;
-
-	RawShaderMaterial.prototype.isRawShaderMaterial = true;
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  roughness: <float>,
-	 *  metalness: <float>,
-	 *  opacity: <float>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  lightMap: new THREE.Texture( <Image> ),
-	 *  lightMapIntensity: <float>
-	 *
-	 *  aoMap: new THREE.Texture( <Image> ),
-	 *  aoMapIntensity: <float>
-	 *
-	 *  emissive: <hex>,
-	 *  emissiveIntensity: <float>
-	 *  emissiveMap: new THREE.Texture( <Image> ),
-	 *
-	 *  bumpMap: new THREE.Texture( <Image> ),
-	 *  bumpScale: <float>,
-	 *
-	 *  normalMap: new THREE.Texture( <Image> ),
-	 *  normalMapType: THREE.TangentSpaceNormalMap,
-	 *  normalScale: <Vector2>,
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>,
-	 *
-	 *  roughnessMap: new THREE.Texture( <Image> ),
-	 *
-	 *  metalnessMap: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
-	 *  envMapIntensity: <float>
-	 *
-	 *  refractionRatio: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function MeshStandardMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.defines = { 'STANDARD': '' };
-
-		this.type = 'MeshStandardMaterial';
-
-		this.color = new Color( 0xffffff ); // diffuse
-		this.roughness = 0.5;
-		this.metalness = 0.5;
-
-		this.map = null;
-
-		this.lightMap = null;
-		this.lightMapIntensity = 1.0;
-
-		this.aoMap = null;
-		this.aoMapIntensity = 1.0;
-
-		this.emissive = new Color( 0x000000 );
-		this.emissiveIntensity = 1.0;
-		this.emissiveMap = null;
-
-		this.bumpMap = null;
-		this.bumpScale = 1;
-
-		this.normalMap = null;
-		this.normalMapType = TangentSpaceNormalMap;
-		this.normalScale = new Vector2( 1, 1 );
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.roughnessMap = null;
-
-		this.metalnessMap = null;
-
-		this.alphaMap = null;
-
-		this.envMap = null;
-		this.envMapIntensity = 1.0;
-
-		this.refractionRatio = 0.98;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-		this.wireframeLinecap = 'round';
-		this.wireframeLinejoin = 'round';
-
-		this.skinning = false;
-		this.morphTargets = false;
-		this.morphNormals = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshStandardMaterial.prototype = Object.create( Material.prototype );
-	MeshStandardMaterial.prototype.constructor = MeshStandardMaterial;
-
-	MeshStandardMaterial.prototype.isMeshStandardMaterial = true;
-
-	MeshStandardMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.defines = { 'STANDARD': '' };
-
-		this.color.copy( source.color );
-		this.roughness = source.roughness;
-		this.metalness = source.metalness;
-
-		this.map = source.map;
-
-		this.lightMap = source.lightMap;
-		this.lightMapIntensity = source.lightMapIntensity;
-
-		this.aoMap = source.aoMap;
-		this.aoMapIntensity = source.aoMapIntensity;
-
-		this.emissive.copy( source.emissive );
-		this.emissiveMap = source.emissiveMap;
-		this.emissiveIntensity = source.emissiveIntensity;
-
-		this.bumpMap = source.bumpMap;
-		this.bumpScale = source.bumpScale;
-
-		this.normalMap = source.normalMap;
-		this.normalMapType = source.normalMapType;
-		this.normalScale.copy( source.normalScale );
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		this.roughnessMap = source.roughnessMap;
-
-		this.metalnessMap = source.metalnessMap;
-
-		this.alphaMap = source.alphaMap;
-
-		this.envMap = source.envMap;
-		this.envMapIntensity = source.envMapIntensity;
-
-		this.refractionRatio = source.refractionRatio;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-		this.wireframeLinecap = source.wireframeLinecap;
-		this.wireframeLinejoin = source.wireframeLinejoin;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		return this;
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *  reflectivity: <float>
-	 *  clearCoat: <float>
-	 *  clearCoatRoughness: <float>
-	 * }
-	 */
-
-	function MeshPhysicalMaterial( parameters ) {
-
-		MeshStandardMaterial.call( this );
-
-		this.defines = { 'PHYSICAL': '' };
-
-		this.type = 'MeshPhysicalMaterial';
-
-		this.reflectivity = 0.5; // maps to F0 = 0.04
-
-		this.clearCoat = 0.0;
-		this.clearCoatRoughness = 0.0;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype );
-	MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;
-
-	MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;
-
-	MeshPhysicalMaterial.prototype.copy = function ( source ) {
-
-		MeshStandardMaterial.prototype.copy.call( this, source );
-
-		this.defines = { 'PHYSICAL': '' };
-
-		this.reflectivity = source.reflectivity;
-
-		this.clearCoat = source.clearCoat;
-		this.clearCoatRoughness = source.clearCoatRoughness;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  specular: <hex>,
-	 *  shininess: <float>,
-	 *  opacity: <float>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  lightMap: new THREE.Texture( <Image> ),
-	 *  lightMapIntensity: <float>
-	 *
-	 *  aoMap: new THREE.Texture( <Image> ),
-	 *  aoMapIntensity: <float>
-	 *
-	 *  emissive: <hex>,
-	 *  emissiveIntensity: <float>
-	 *  emissiveMap: new THREE.Texture( <Image> ),
-	 *
-	 *  bumpMap: new THREE.Texture( <Image> ),
-	 *  bumpScale: <float>,
-	 *
-	 *  normalMap: new THREE.Texture( <Image> ),
-	 *  normalMapType: THREE.TangentSpaceNormalMap,
-	 *  normalScale: <Vector2>,
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>,
-	 *
-	 *  specularMap: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
-	 *  combine: THREE.Multiply,
-	 *  reflectivity: <float>,
-	 *  refractionRatio: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function MeshPhongMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshPhongMaterial';
-
-		this.color = new Color( 0xffffff ); // diffuse
-		this.specular = new Color( 0x111111 );
-		this.shininess = 30;
-
-		this.map = null;
-
-		this.lightMap = null;
-		this.lightMapIntensity = 1.0;
-
-		this.aoMap = null;
-		this.aoMapIntensity = 1.0;
-
-		this.emissive = new Color( 0x000000 );
-		this.emissiveIntensity = 1.0;
-		this.emissiveMap = null;
-
-		this.bumpMap = null;
-		this.bumpScale = 1;
-
-		this.normalMap = null;
-		this.normalMapType = TangentSpaceNormalMap;
-		this.normalScale = new Vector2( 1, 1 );
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.specularMap = null;
-
-		this.alphaMap = null;
-
-		this.envMap = null;
-		this.combine = MultiplyOperation;
-		this.reflectivity = 1;
-		this.refractionRatio = 0.98;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-		this.wireframeLinecap = 'round';
-		this.wireframeLinejoin = 'round';
-
-		this.skinning = false;
-		this.morphTargets = false;
-		this.morphNormals = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshPhongMaterial.prototype = Object.create( Material.prototype );
-	MeshPhongMaterial.prototype.constructor = MeshPhongMaterial;
-
-	MeshPhongMaterial.prototype.isMeshPhongMaterial = true;
-
-	MeshPhongMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-		this.specular.copy( source.specular );
-		this.shininess = source.shininess;
-
-		this.map = source.map;
-
-		this.lightMap = source.lightMap;
-		this.lightMapIntensity = source.lightMapIntensity;
-
-		this.aoMap = source.aoMap;
-		this.aoMapIntensity = source.aoMapIntensity;
-
-		this.emissive.copy( source.emissive );
-		this.emissiveMap = source.emissiveMap;
-		this.emissiveIntensity = source.emissiveIntensity;
-
-		this.bumpMap = source.bumpMap;
-		this.bumpScale = source.bumpScale;
-
-		this.normalMap = source.normalMap;
-		this.normalMapType = source.normalMapType;
-		this.normalScale.copy( source.normalScale );
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		this.specularMap = source.specularMap;
-
-		this.alphaMap = source.alphaMap;
-
-		this.envMap = source.envMap;
-		this.combine = source.combine;
-		this.reflectivity = source.reflectivity;
-		this.refractionRatio = source.refractionRatio;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-		this.wireframeLinecap = source.wireframeLinecap;
-		this.wireframeLinejoin = source.wireframeLinejoin;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		return this;
-
-	};
-
-	/**
-	 * @author takahirox / http://github.com/takahirox
-	 *
-	 * parameters = {
-	 *  gradientMap: new THREE.Texture( <Image> )
-	 * }
-	 */
-
-	function MeshToonMaterial( parameters ) {
-
-		MeshPhongMaterial.call( this );
-
-		this.defines = { 'TOON': '' };
-
-		this.type = 'MeshToonMaterial';
-
-		this.gradientMap = null;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshToonMaterial.prototype = Object.create( MeshPhongMaterial.prototype );
-	MeshToonMaterial.prototype.constructor = MeshToonMaterial;
-
-	MeshToonMaterial.prototype.isMeshToonMaterial = true;
-
-	MeshToonMaterial.prototype.copy = function ( source ) {
-
-		MeshPhongMaterial.prototype.copy.call( this, source );
-
-		this.gradientMap = source.gradientMap;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *  opacity: <float>,
-	 *
-	 *  bumpMap: new THREE.Texture( <Image> ),
-	 *  bumpScale: <float>,
-	 *
-	 *  normalMap: new THREE.Texture( <Image> ),
-	 *  normalMapType: THREE.TangentSpaceNormalMap,
-	 *  normalScale: <Vector2>,
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function MeshNormalMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshNormalMaterial';
-
-		this.bumpMap = null;
-		this.bumpScale = 1;
-
-		this.normalMap = null;
-		this.normalMapType = TangentSpaceNormalMap;
-		this.normalScale = new Vector2( 1, 1 );
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-
-		this.fog = false;
-		this.lights = false;
-
-		this.skinning = false;
-		this.morphTargets = false;
-		this.morphNormals = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshNormalMaterial.prototype = Object.create( Material.prototype );
-	MeshNormalMaterial.prototype.constructor = MeshNormalMaterial;
-
-	MeshNormalMaterial.prototype.isMeshNormalMaterial = true;
-
-	MeshNormalMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.bumpMap = source.bumpMap;
-		this.bumpScale = source.bumpScale;
-
-		this.normalMap = source.normalMap;
-		this.normalMapType = source.normalMapType;
-		this.normalScale.copy( source.normalScale );
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  lightMap: new THREE.Texture( <Image> ),
-	 *  lightMapIntensity: <float>
-	 *
-	 *  aoMap: new THREE.Texture( <Image> ),
-	 *  aoMapIntensity: <float>
-	 *
-	 *  emissive: <hex>,
-	 *  emissiveIntensity: <float>
-	 *  emissiveMap: new THREE.Texture( <Image> ),
-	 *
-	 *  specularMap: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
-	 *  combine: THREE.Multiply,
-	 *  reflectivity: <float>,
-	 *  refractionRatio: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function MeshLambertMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshLambertMaterial';
-
-		this.color = new Color( 0xffffff ); // diffuse
-
-		this.map = null;
-
-		this.lightMap = null;
-		this.lightMapIntensity = 1.0;
-
-		this.aoMap = null;
-		this.aoMapIntensity = 1.0;
-
-		this.emissive = new Color( 0x000000 );
-		this.emissiveIntensity = 1.0;
-		this.emissiveMap = null;
-
-		this.specularMap = null;
-
-		this.alphaMap = null;
-
-		this.envMap = null;
-		this.combine = MultiplyOperation;
-		this.reflectivity = 1;
-		this.refractionRatio = 0.98;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-		this.wireframeLinecap = 'round';
-		this.wireframeLinejoin = 'round';
-
-		this.skinning = false;
-		this.morphTargets = false;
-		this.morphNormals = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshLambertMaterial.prototype = Object.create( Material.prototype );
-	MeshLambertMaterial.prototype.constructor = MeshLambertMaterial;
-
-	MeshLambertMaterial.prototype.isMeshLambertMaterial = true;
-
-	MeshLambertMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-
-		this.map = source.map;
-
-		this.lightMap = source.lightMap;
-		this.lightMapIntensity = source.lightMapIntensity;
-
-		this.aoMap = source.aoMap;
-		this.aoMapIntensity = source.aoMapIntensity;
-
-		this.emissive.copy( source.emissive );
-		this.emissiveMap = source.emissiveMap;
-		this.emissiveIntensity = source.emissiveIntensity;
-
-		this.specularMap = source.specularMap;
-
-		this.alphaMap = source.alphaMap;
-
-		this.envMap = source.envMap;
-		this.combine = source.combine;
-		this.reflectivity = source.reflectivity;
-		this.refractionRatio = source.refractionRatio;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-		this.wireframeLinecap = source.wireframeLinecap;
-		this.wireframeLinejoin = source.wireframeLinejoin;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		return this;
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *
-	 *  matcap: new THREE.Texture( <Image> ),
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  bumpMap: new THREE.Texture( <Image> ),
-	 *  bumpScale: <float>,
-	 *
-	 *  normalMap: new THREE.Texture( <Image> ),
-	 *  normalMapType: THREE.TangentSpaceNormalMap,
-	 *  normalScale: <Vector2>,
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>,
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function MeshMatcapMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.defines = { 'MATCAP': '' };
-
-		this.type = 'MeshMatcapMaterial';
-
-		this.color = new Color( 0xffffff ); // diffuse
-
-		this.matcap = null;
-
-		this.map = null;
-
-		this.bumpMap = null;
-		this.bumpScale = 1;
-
-		this.normalMap = null;
-		this.normalMapType = TangentSpaceNormalMap;
-		this.normalScale = new Vector2( 1, 1 );
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.alphaMap = null;
-
-		this.skinning = false;
-		this.morphTargets = false;
-		this.morphNormals = false;
-
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshMatcapMaterial.prototype = Object.create( Material.prototype );
-	MeshMatcapMaterial.prototype.constructor = MeshMatcapMaterial;
-
-	MeshMatcapMaterial.prototype.isMeshMatcapMaterial = true;
-
-	MeshMatcapMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.defines = { 'MATCAP': '' };
-
-		this.color.copy( source.color );
-
-		this.matcap = source.matcap;
-
-		this.map = source.map;
-
-		this.bumpMap = source.bumpMap;
-		this.bumpScale = source.bumpScale;
-
-		this.normalMap = source.normalMap;
-		this.normalMapType = source.normalMapType;
-		this.normalScale.copy( source.normalScale );
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		this.alphaMap = source.alphaMap;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		return this;
-
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *
-	 *  linewidth: <float>,
-	 *
-	 *  scale: <float>,
-	 *  dashSize: <float>,
-	 *  gapSize: <float>
-	 * }
-	 */
-
-	function LineDashedMaterial( parameters ) {
-
-		LineBasicMaterial.call( this );
-
-		this.type = 'LineDashedMaterial';
-
-		this.scale = 1;
-		this.dashSize = 3;
-		this.gapSize = 1;
-
-		this.setValues( parameters );
-
-	}
-
-	LineDashedMaterial.prototype = Object.create( LineBasicMaterial.prototype );
-	LineDashedMaterial.prototype.constructor = LineDashedMaterial;
-
-	LineDashedMaterial.prototype.isLineDashedMaterial = true;
-
-	LineDashedMaterial.prototype.copy = function ( source ) {
-
-		LineBasicMaterial.prototype.copy.call( this, source );
-
-		this.scale = source.scale;
-		this.dashSize = source.dashSize;
-		this.gapSize = source.gapSize;
-
-		return this;
-
-	};
-
-
-
-	var Materials = /*#__PURE__*/Object.freeze({
-		ShadowMaterial: ShadowMaterial,
-		SpriteMaterial: SpriteMaterial,
-		RawShaderMaterial: RawShaderMaterial,
-		ShaderMaterial: ShaderMaterial,
-		PointsMaterial: PointsMaterial,
-		MeshPhysicalMaterial: MeshPhysicalMaterial,
-		MeshStandardMaterial: MeshStandardMaterial,
-		MeshPhongMaterial: MeshPhongMaterial,
-		MeshToonMaterial: MeshToonMaterial,
-		MeshNormalMaterial: MeshNormalMaterial,
-		MeshLambertMaterial: MeshLambertMaterial,
-		MeshDepthMaterial: MeshDepthMaterial,
-		MeshDistanceMaterial: MeshDistanceMaterial,
-		MeshBasicMaterial: MeshBasicMaterial,
-		MeshMatcapMaterial: MeshMatcapMaterial,
-		LineDashedMaterial: LineDashedMaterial,
-		LineBasicMaterial: LineBasicMaterial,
-		Material: Material
-	});
-
-	/**
-	 * @author tschw
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 */
-
-	var AnimationUtils = {
-
-		// same as Array.prototype.slice, but also works on typed arrays
-		arraySlice: function ( array, from, to ) {
-
-			if ( AnimationUtils.isTypedArray( array ) ) {
-
-				// in ios9 array.subarray(from, undefined) will return empty array
-				// but array.subarray(from) or array.subarray(from, len) is correct
-				return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );
-
-			}
-
-			return array.slice( from, to );
-
-		},
-
-		// converts an array to a specific type
-		convertArray: function ( array, type, forceClone ) {
-
-			if ( ! array || // let 'undefined' and 'null' pass
-				! forceClone && array.constructor === type ) return array;
-
-			if ( typeof type.BYTES_PER_ELEMENT === 'number' ) {
-
-				return new type( array ); // create typed array
-
-			}
-
-			return Array.prototype.slice.call( array ); // create Array
-
-		},
-
-		isTypedArray: function ( object ) {
-
-			return ArrayBuffer.isView( object ) &&
-				! ( object instanceof DataView );
-
-		},
-
-		// returns an array by which times and values can be sorted
-		getKeyframeOrder: function ( times ) {
-
-			function compareTime( i, j ) {
-
-				return times[ i ] - times[ j ];
-
-			}
-
-			var n = times.length;
-			var result = new Array( n );
-			for ( var i = 0; i !== n; ++ i ) result[ i ] = i;
-
-			result.sort( compareTime );
-
-			return result;
-
-		},
-
-		// uses the array previously returned by 'getKeyframeOrder' to sort data
-		sortedArray: function ( values, stride, order ) {
-
-			var nValues = values.length;
-			var result = new values.constructor( nValues );
-
-			for ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {
-
-				var srcOffset = order[ i ] * stride;
-
-				for ( var j = 0; j !== stride; ++ j ) {
-
-					result[ dstOffset ++ ] = values[ srcOffset + j ];
-
-				}
-
-			}
-
-			return result;
-
-		},
-
-		// function for parsing AOS keyframe formats
-		flattenJSON: function ( jsonKeys, times, values, valuePropertyName ) {
-
-			var i = 1, key = jsonKeys[ 0 ];
-
-			while ( key !== undefined && key[ valuePropertyName ] === undefined ) {
-
-				key = jsonKeys[ i ++ ];
-
-			}
-
-			if ( key === undefined ) return; // no data
-
-			var value = key[ valuePropertyName ];
-			if ( value === undefined ) return; // no data
-
-			if ( Array.isArray( value ) ) {
-
-				do {
-
-					value = key[ valuePropertyName ];
-
-					if ( value !== undefined ) {
-
-						times.push( key.time );
-						values.push.apply( values, value ); // push all elements
-
-					}
-
-					key = jsonKeys[ i ++ ];
-
-				} while ( key !== undefined );
-
-			} else if ( value.toArray !== undefined ) {
-
-				// ...assume THREE.Math-ish
-
-				do {
-
-					value = key[ valuePropertyName ];
-
-					if ( value !== undefined ) {
-
-						times.push( key.time );
-						value.toArray( values, values.length );
-
-					}
-
-					key = jsonKeys[ i ++ ];
-
-				} while ( key !== undefined );
-
-			} else {
-
-				// otherwise push as-is
-
-				do {
-
-					value = key[ valuePropertyName ];
-
-					if ( value !== undefined ) {
-
-						times.push( key.time );
-						values.push( value );
-
-					}
-
-					key = jsonKeys[ i ++ ];
-
-				} while ( key !== undefined );
-
-			}
-
-		}
-
-	};
-
-	/**
-	 * Abstract base class of interpolants over parametric samples.
-	 *
-	 * The parameter domain is one dimensional, typically the time or a path
-	 * along a curve defined by the data.
-	 *
-	 * The sample values can have any dimensionality and derived classes may
-	 * apply special interpretations to the data.
-	 *
-	 * This class provides the interval seek in a Template Method, deferring
-	 * the actual interpolation to derived classes.
-	 *
-	 * Time complexity is O(1) for linear access crossing at most two points
-	 * and O(log N) for random access, where N is the number of positions.
-	 *
-	 * References:
-	 *
-	 * 		http://www.oodesign.com/template-method-pattern.html
-	 *
-	 * @author tschw
-	 */
-
-	function Interpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		this.parameterPositions = parameterPositions;
-		this._cachedIndex = 0;
-
-		this.resultBuffer = resultBuffer !== undefined ?
-			resultBuffer : new sampleValues.constructor( sampleSize );
-		this.sampleValues = sampleValues;
-		this.valueSize = sampleSize;
-
-	}
-
-	Object.assign( Interpolant.prototype, {
-
-		evaluate: function ( t ) {
-
-			var pp = this.parameterPositions,
-				i1 = this._cachedIndex,
-
-				t1 = pp[ i1 ],
-				t0 = pp[ i1 - 1 ];
-
-			validate_interval: {
-
-				seek: {
-
-					var right;
-
-					linear_scan: {
-
-						//- See http://jsperf.com/comparison-to-undefined/3
-						//- slower code:
-						//-
-						//- 				if ( t >= t1 || t1 === undefined ) {
-						forward_scan: if ( ! ( t < t1 ) ) {
-
-							for ( var giveUpAt = i1 + 2; ; ) {
-
-								if ( t1 === undefined ) {
-
-									if ( t < t0 ) break forward_scan;
-
-									// after end
-
-									i1 = pp.length;
-									this._cachedIndex = i1;
-									return this.afterEnd_( i1 - 1, t, t0 );
-
-								}
-
-								if ( i1 === giveUpAt ) break; // this loop
-
-								t0 = t1;
-								t1 = pp[ ++ i1 ];
-
-								if ( t < t1 ) {
-
-									// we have arrived at the sought interval
-									break seek;
-
-								}
-
-							}
-
-							// prepare binary search on the right side of the index
-							right = pp.length;
-							break linear_scan;
-
-						}
-
-						//- slower code:
-						//-					if ( t < t0 || t0 === undefined ) {
-						if ( ! ( t >= t0 ) ) {
-
-							// looping?
-
-							var t1global = pp[ 1 ];
-
-							if ( t < t1global ) {
-
-								i1 = 2; // + 1, using the scan for the details
-								t0 = t1global;
-
-							}
-
-							// linear reverse scan
-
-							for ( var giveUpAt = i1 - 2; ; ) {
-
-								if ( t0 === undefined ) {
-
-									// before start
-
-									this._cachedIndex = 0;
-									return this.beforeStart_( 0, t, t1 );
-
-								}
-
-								if ( i1 === giveUpAt ) break; // this loop
-
-								t1 = t0;
-								t0 = pp[ -- i1 - 1 ];
-
-								if ( t >= t0 ) {
-
-									// we have arrived at the sought interval
-									break seek;
-
-								}
-
-							}
-
-							// prepare binary search on the left side of the index
-							right = i1;
-							i1 = 0;
-							break linear_scan;
-
-						}
-
-						// the interval is valid
-
-						break validate_interval;
-
-					} // linear scan
-
-					// binary search
-
-					while ( i1 < right ) {
-
-						var mid = ( i1 + right ) >>> 1;
-
-						if ( t < pp[ mid ] ) {
-
-							right = mid;
-
-						} else {
-
-							i1 = mid + 1;
-
-						}
-
-					}
-
-					t1 = pp[ i1 ];
-					t0 = pp[ i1 - 1 ];
-
-					// check boundary cases, again
-
-					if ( t0 === undefined ) {
-
-						this._cachedIndex = 0;
-						return this.beforeStart_( 0, t, t1 );
-
-					}
-
-					if ( t1 === undefined ) {
-
-						i1 = pp.length;
-						this._cachedIndex = i1;
-						return this.afterEnd_( i1 - 1, t0, t );
-
-					}
-
-				} // seek
-
-				this._cachedIndex = i1;
-
-				this.intervalChanged_( i1, t0, t1 );
-
-			} // validate_interval
-
-			return this.interpolate_( i1, t0, t, t1 );
-
-		},
-
-		settings: null, // optional, subclass-specific settings structure
-		// Note: The indirection allows central control of many interpolants.
-
-		// --- Protected interface
-
-		DefaultSettings_: {},
-
-		getSettings_: function () {
-
-			return this.settings || this.DefaultSettings_;
-
-		},
-
-		copySampleValue_: function ( index ) {
-
-			// copies a sample value to the result buffer
-
-			var result = this.resultBuffer,
-				values = this.sampleValues,
-				stride = this.valueSize,
-				offset = index * stride;
-
-			for ( var i = 0; i !== stride; ++ i ) {
-
-				result[ i ] = values[ offset + i ];
-
-			}
-
-			return result;
-
-		},
-
-		// Template methods for derived classes:
-
-		interpolate_: function ( /* i1, t0, t, t1 */ ) {
-
-			throw new Error( 'call to abstract method' );
-			// implementations shall return this.resultBuffer
-
-		},
-
-		intervalChanged_: function ( /* i1, t0, t1 */ ) {
-
-			// empty
-
-		}
-
-	} );
-
-	//!\ DECLARE ALIAS AFTER assign prototype !
-	Object.assign( Interpolant.prototype, {
-
-		//( 0, t, t0 ), returns this.resultBuffer
-		beforeStart_: Interpolant.prototype.copySampleValue_,
-
-		//( N-1, tN-1, t ), returns this.resultBuffer
-		afterEnd_: Interpolant.prototype.copySampleValue_,
-
-	} );
-
-	/**
-	 * Fast and simple cubic spline interpolant.
-	 *
-	 * It was derived from a Hermitian construction setting the first derivative
-	 * at each sample position to the linear slope between neighboring positions
-	 * over their parameter interval.
-	 *
-	 * @author tschw
-	 */
-
-	function CubicInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-		this._weightPrev = - 0;
-		this._offsetPrev = - 0;
-		this._weightNext = - 0;
-		this._offsetNext = - 0;
-
-	}
-
-	CubicInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
-
-		constructor: CubicInterpolant,
-
-		DefaultSettings_: {
-
-			endingStart: ZeroCurvatureEnding,
-			endingEnd: ZeroCurvatureEnding
-
-		},
-
-		intervalChanged_: function ( i1, t0, t1 ) {
-
-			var pp = this.parameterPositions,
-				iPrev = i1 - 2,
-				iNext = i1 + 1,
-
-				tPrev = pp[ iPrev ],
-				tNext = pp[ iNext ];
-
-			if ( tPrev === undefined ) {
-
-				switch ( this.getSettings_().endingStart ) {
-
-					case ZeroSlopeEnding:
-
-						// f'(t0) = 0
-						iPrev = i1;
-						tPrev = 2 * t0 - t1;
-
-						break;
-
-					case WrapAroundEnding:
-
-						// use the other end of the curve
-						iPrev = pp.length - 2;
-						tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];
-
-						break;
-
-					default: // ZeroCurvatureEnding
-
-						// f''(t0) = 0 a.k.a. Natural Spline
-						iPrev = i1;
-						tPrev = t1;
-
-				}
-
-			}
-
-			if ( tNext === undefined ) {
-
-				switch ( this.getSettings_().endingEnd ) {
-
-					case ZeroSlopeEnding:
-
-						// f'(tN) = 0
-						iNext = i1;
-						tNext = 2 * t1 - t0;
-
-						break;
-
-					case WrapAroundEnding:
-
-						// use the other end of the curve
-						iNext = 1;
-						tNext = t1 + pp[ 1 ] - pp[ 0 ];
-
-						break;
-
-					default: // ZeroCurvatureEnding
-
-						// f''(tN) = 0, a.k.a. Natural Spline
-						iNext = i1 - 1;
-						tNext = t0;
-
-				}
-
-			}
-
-			var halfDt = ( t1 - t0 ) * 0.5,
-				stride = this.valueSize;
-
-			this._weightPrev = halfDt / ( t0 - tPrev );
-			this._weightNext = halfDt / ( tNext - t1 );
-			this._offsetPrev = iPrev * stride;
-			this._offsetNext = iNext * stride;
-
-		},
-
-		interpolate_: function ( i1, t0, t, t1 ) {
-
-			var result = this.resultBuffer,
-				values = this.sampleValues,
-				stride = this.valueSize,
-
-				o1 = i1 * stride,		o0 = o1 - stride,
-				oP = this._offsetPrev, 	oN = this._offsetNext,
-				wP = this._weightPrev,	wN = this._weightNext,
-
-				p = ( t - t0 ) / ( t1 - t0 ),
-				pp = p * p,
-				ppp = pp * p;
-
-			// evaluate polynomials
-
-			var sP = - wP * ppp + 2 * wP * pp - wP * p;
-			var s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1;
-			var s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;
-			var sN = wN * ppp - wN * pp;
-
-			// combine data linearly
-
-			for ( var i = 0; i !== stride; ++ i ) {
-
-				result[ i ] =
-						sP * values[ oP + i ] +
-						s0 * values[ o0 + i ] +
-						s1 * values[ o1 + i ] +
-						sN * values[ oN + i ];
-
-			}
-
-			return result;
-
-		}
-
-	} );
-
-	/**
-	 * @author tschw
-	 */
-
-	function LinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-	}
-
-	LinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
-
-		constructor: LinearInterpolant,
-
-		interpolate_: function ( i1, t0, t, t1 ) {
-
-			var result = this.resultBuffer,
-				values = this.sampleValues,
-				stride = this.valueSize,
-
-				offset1 = i1 * stride,
-				offset0 = offset1 - stride,
-
-				weight1 = ( t - t0 ) / ( t1 - t0 ),
-				weight0 = 1 - weight1;
-
-			for ( var i = 0; i !== stride; ++ i ) {
-
-				result[ i ] =
-						values[ offset0 + i ] * weight0 +
-						values[ offset1 + i ] * weight1;
-
-			}
-
-			return result;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * Interpolant that evaluates to the sample value at the position preceeding
-	 * the parameter.
-	 *
-	 * @author tschw
-	 */
-
-	function DiscreteInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-	}
-
-	DiscreteInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
-
-		constructor: DiscreteInterpolant,
-
-		interpolate_: function ( i1 /*, t0, t, t1 */ ) {
-
-			return this.copySampleValue_( i1 - 1 );
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * A timed sequence of keyframes for a specific property.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function KeyframeTrack( name, times, values, interpolation ) {
-
-		if ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' );
-		if ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name );
-
-		this.name = name;
-
-		this.times = AnimationUtils.convertArray( times, this.TimeBufferType );
-		this.values = AnimationUtils.convertArray( values, this.ValueBufferType );
-
-		this.setInterpolation( interpolation || this.DefaultInterpolation );
-
-	}
-
-	// Static methods
-
-	Object.assign( KeyframeTrack, {
-
-		// Serialization (in static context, because of constructor invocation
-		// and automatic invocation of .toJSON):
-
-		toJSON: function ( track ) {
-
-			var trackType = track.constructor;
-
-			var json;
-
-			// derived classes can define a static toJSON method
-			if ( trackType.toJSON !== undefined ) {
-
-				json = trackType.toJSON( track );
-
-			} else {
-
-				// by default, we assume the data can be serialized as-is
-				json = {
-
-					'name': track.name,
-					'times': AnimationUtils.convertArray( track.times, Array ),
-					'values': AnimationUtils.convertArray( track.values, Array )
-
-				};
-
-				var interpolation = track.getInterpolation();
-
-				if ( interpolation !== track.DefaultInterpolation ) {
-
-					json.interpolation = interpolation;
-
-				}
-
-			}
-
-			json.type = track.ValueTypeName; // mandatory
-
-			return json;
-
-		}
-
-	} );
-
-	Object.assign( KeyframeTrack.prototype, {
-
-		constructor: KeyframeTrack,
-
-		TimeBufferType: Float32Array,
-
-		ValueBufferType: Float32Array,
-
-		DefaultInterpolation: InterpolateLinear,
-
-		InterpolantFactoryMethodDiscrete: function ( result ) {
-
-			return new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result );
-
-		},
-
-		InterpolantFactoryMethodLinear: function ( result ) {
-
-			return new LinearInterpolant( this.times, this.values, this.getValueSize(), result );
-
-		},
-
-		InterpolantFactoryMethodSmooth: function ( result ) {
-
-			return new CubicInterpolant( this.times, this.values, this.getValueSize(), result );
-
-		},
-
-		setInterpolation: function ( interpolation ) {
-
-			var factoryMethod;
-
-			switch ( interpolation ) {
-
-				case InterpolateDiscrete:
-
-					factoryMethod = this.InterpolantFactoryMethodDiscrete;
-
-					break;
-
-				case InterpolateLinear:
-
-					factoryMethod = this.InterpolantFactoryMethodLinear;
-
-					break;
-
-				case InterpolateSmooth:
-
-					factoryMethod = this.InterpolantFactoryMethodSmooth;
-
-					break;
-
-			}
-
-			if ( factoryMethod === undefined ) {
-
-				var message = "unsupported interpolation for " +
-					this.ValueTypeName + " keyframe track named " + this.name;
-
-				if ( this.createInterpolant === undefined ) {
-
-					// fall back to default, unless the default itself is messed up
-					if ( interpolation !== this.DefaultInterpolation ) {
-
-						this.setInterpolation( this.DefaultInterpolation );
-
-					} else {
-
-						throw new Error( message ); // fatal, in this case
-
-					}
-
-				}
-
-				console.warn( 'THREE.KeyframeTrack:', message );
-				return this;
-
-			}
-
-			this.createInterpolant = factoryMethod;
-
-			return this;
-
-		},
-
-		getInterpolation: function () {
-
-			switch ( this.createInterpolant ) {
-
-				case this.InterpolantFactoryMethodDiscrete:
-
-					return InterpolateDiscrete;
-
-				case this.InterpolantFactoryMethodLinear:
-
-					return InterpolateLinear;
-
-				case this.InterpolantFactoryMethodSmooth:
-
-					return InterpolateSmooth;
-
-			}
-
-		},
-
-		getValueSize: function () {
-
-			return this.values.length / this.times.length;
-
-		},
-
-		// move all keyframes either forwards or backwards in time
-		shift: function ( timeOffset ) {
-
-			if ( timeOffset !== 0.0 ) {
-
-				var times = this.times;
-
-				for ( var i = 0, n = times.length; i !== n; ++ i ) {
-
-					times[ i ] += timeOffset;
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
-		scale: function ( timeScale ) {
-
-			if ( timeScale !== 1.0 ) {
-
-				var times = this.times;
-
-				for ( var i = 0, n = times.length; i !== n; ++ i ) {
-
-					times[ i ] *= timeScale;
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
-		// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
-		trim: function ( startTime, endTime ) {
-
-			var times = this.times,
-				nKeys = times.length,
-				from = 0,
-				to = nKeys - 1;
-
-			while ( from !== nKeys && times[ from ] < startTime ) {
-
-				++ from;
-
-			}
-
-			while ( to !== - 1 && times[ to ] > endTime ) {
-
-				-- to;
-
-			}
-
-			++ to; // inclusive -> exclusive bound
-
-			if ( from !== 0 || to !== nKeys ) {
-
-				// empty tracks are forbidden, so keep at least one keyframe
-				if ( from >= to ) to = Math.max( to, 1 ), from = to - 1;
-
-				var stride = this.getValueSize();
-				this.times = AnimationUtils.arraySlice( times, from, to );
-				this.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride );
-
-			}
-
-			return this;
-
-		},
-
-		// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
-		validate: function () {
-
-			var valid = true;
-
-			var valueSize = this.getValueSize();
-			if ( valueSize - Math.floor( valueSize ) !== 0 ) {
-
-				console.error( 'THREE.KeyframeTrack: Invalid value size in track.', this );
-				valid = false;
-
-			}
-
-			var times = this.times,
-				values = this.values,
-
-				nKeys = times.length;
-
-			if ( nKeys === 0 ) {
-
-				console.error( 'THREE.KeyframeTrack: Track is empty.', this );
-				valid = false;
-
-			}
-
-			var prevTime = null;
-
-			for ( var i = 0; i !== nKeys; i ++ ) {
-
-				var currTime = times[ i ];
-
-				if ( typeof currTime === 'number' && isNaN( currTime ) ) {
-
-					console.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime );
-					valid = false;
-					break;
-
-				}
-
-				if ( prevTime !== null && prevTime > currTime ) {
-
-					console.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime );
-					valid = false;
-					break;
-
-				}
-
-				prevTime = currTime;
-
-			}
-
-			if ( values !== undefined ) {
-
-				if ( AnimationUtils.isTypedArray( values ) ) {
-
-					for ( var i = 0, n = values.length; i !== n; ++ i ) {
-
-						var value = values[ i ];
-
-						if ( isNaN( value ) ) {
-
-							console.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value );
-							valid = false;
-							break;
-
-						}
-
-					}
-
-				}
-
-			}
-
-			return valid;
-
-		},
-
-		// removes equivalent sequential keys as common in morph target sequences
-		// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
-		optimize: function () {
-
-			var times = this.times,
-				values = this.values,
-				stride = this.getValueSize(),
-
-				smoothInterpolation = this.getInterpolation() === InterpolateSmooth,
-
-				writeIndex = 1,
-				lastIndex = times.length - 1;
-
-			for ( var i = 1; i < lastIndex; ++ i ) {
-
-				var keep = false;
-
-				var time = times[ i ];
-				var timeNext = times[ i + 1 ];
-
-				// remove adjacent keyframes scheduled at the same time
-
-				if ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {
-
-					if ( ! smoothInterpolation ) {
-
-						// remove unnecessary keyframes same as their neighbors
-
-						var offset = i * stride,
-							offsetP = offset - stride,
-							offsetN = offset + stride;
-
-						for ( var j = 0; j !== stride; ++ j ) {
-
-							var value = values[ offset + j ];
-
-							if ( value !== values[ offsetP + j ] ||
-								value !== values[ offsetN + j ] ) {
-
-								keep = true;
-								break;
-
-							}
-
-						}
-
-					} else {
-
-						keep = true;
-
-					}
-
-				}
-
-				// in-place compaction
-
-				if ( keep ) {
-
-					if ( i !== writeIndex ) {
-
-						times[ writeIndex ] = times[ i ];
-
-						var readOffset = i * stride,
-							writeOffset = writeIndex * stride;
-
-						for ( var j = 0; j !== stride; ++ j ) {
-
-							values[ writeOffset + j ] = values[ readOffset + j ];
-
-						}
-
-					}
-
-					++ writeIndex;
-
-				}
-
-			}
-
-			// flush last keyframe (compaction looks ahead)
-
-			if ( lastIndex > 0 ) {
-
-				times[ writeIndex ] = times[ lastIndex ];
-
-				for ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) {
-
-					values[ writeOffset + j ] = values[ readOffset + j ];
-
-				}
-
-				++ writeIndex;
-
-			}
-
-			if ( writeIndex !== times.length ) {
-
-				this.times = AnimationUtils.arraySlice( times, 0, writeIndex );
-				this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );
-
-			}
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			var times = AnimationUtils.arraySlice( this.times, 0 );
-			var values = AnimationUtils.arraySlice( this.values, 0 );
-
-			var TypedKeyframeTrack = this.constructor;
-			var track = new TypedKeyframeTrack( this.name, times, values );
-
-			// Interpolant argument to constructor is not saved, so copy the factory method directly.
-			track.createInterpolant = this.createInterpolant;
-
-			return track;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * A Track of Boolean keyframe values.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function BooleanKeyframeTrack( name, times, values ) {
-
-		KeyframeTrack.call( this, name, times, values );
-
-	}
-
-	BooleanKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: BooleanKeyframeTrack,
-
-		ValueTypeName: 'bool',
-		ValueBufferType: Array,
-
-		DefaultInterpolation: InterpolateDiscrete,
-
-		InterpolantFactoryMethodLinear: undefined,
-		InterpolantFactoryMethodSmooth: undefined
-
-		// Note: Actually this track could have a optimized / compressed
-		// representation of a single value and a custom interpolant that
-		// computes "firstValue ^ isOdd( index )".
-
-	} );
-
-	/**
-	 *
-	 * A Track of keyframe values that represent color.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function ColorKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	ColorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: ColorKeyframeTrack,
-
-		ValueTypeName: 'color'
-
-		// ValueBufferType is inherited
-
-		// DefaultInterpolation is inherited
-
-		// Note: Very basic implementation and nothing special yet.
-		// However, this is the place for color space parameterization.
-
-	} );
-
-	/**
-	 *
-	 * A Track of numeric keyframe values.
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function NumberKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	NumberKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: NumberKeyframeTrack,
-
-		ValueTypeName: 'number'
-
-		// ValueBufferType is inherited
-
-		// DefaultInterpolation is inherited
-
-	} );
-
-	/**
-	 * Spherical linear unit quaternion interpolant.
-	 *
-	 * @author tschw
-	 */
-
-	function QuaternionLinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-	}
-
-	QuaternionLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
-
-		constructor: QuaternionLinearInterpolant,
-
-		interpolate_: function ( i1, t0, t, t1 ) {
-
-			var result = this.resultBuffer,
-				values = this.sampleValues,
-				stride = this.valueSize,
-
-				offset = i1 * stride,
-
-				alpha = ( t - t0 ) / ( t1 - t0 );
-
-			for ( var end = offset + stride; offset !== end; offset += 4 ) {
-
-				Quaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha );
-
-			}
-
-			return result;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * A Track of quaternion keyframe values.
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function QuaternionKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	QuaternionKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: QuaternionKeyframeTrack,
-
-		ValueTypeName: 'quaternion',
-
-		// ValueBufferType is inherited
-
-		DefaultInterpolation: InterpolateLinear,
-
-		InterpolantFactoryMethodLinear: function ( result ) {
-
-			return new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result );
-
-		},
-
-		InterpolantFactoryMethodSmooth: undefined // not yet implemented
-
-	} );
-
-	/**
-	 *
-	 * A Track that interpolates Strings
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function StringKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	StringKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: StringKeyframeTrack,
-
-		ValueTypeName: 'string',
-		ValueBufferType: Array,
-
-		DefaultInterpolation: InterpolateDiscrete,
-
-		InterpolantFactoryMethodLinear: undefined,
-
-		InterpolantFactoryMethodSmooth: undefined
-
-	} );
-
-	/**
-	 *
-	 * A Track of vectored keyframe values.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function VectorKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	VectorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: VectorKeyframeTrack,
-
-		ValueTypeName: 'vector'
-
-		// ValueBufferType is inherited
-
-		// DefaultInterpolation is inherited
-
-	} );
-
-	/**
-	 *
-	 * Reusable set of Tracks that represent an animation.
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 */
-
-	function AnimationClip( name, duration, tracks ) {
-
-		this.name = name;
-		this.tracks = tracks;
-		this.duration = ( duration !== undefined ) ? duration : - 1;
-
-		this.uuid = _Math.generateUUID();
-
-		// this means it should figure out its duration by scanning the tracks
-		if ( this.duration < 0 ) {
-
-			this.resetDuration();
-
-		}
-
-	}
-
-	function getTrackTypeForValueTypeName( typeName ) {
-
-		switch ( typeName.toLowerCase() ) {
-
-			case 'scalar':
-			case 'double':
-			case 'float':
-			case 'number':
-			case 'integer':
-
-				return NumberKeyframeTrack;
-
-			case 'vector':
-			case 'vector2':
-			case 'vector3':
-			case 'vector4':
-
-				return VectorKeyframeTrack;
-
-			case 'color':
-
-				return ColorKeyframeTrack;
-
-			case 'quaternion':
-
-				return QuaternionKeyframeTrack;
-
-			case 'bool':
-			case 'boolean':
-
-				return BooleanKeyframeTrack;
-
-			case 'string':
-
-				return StringKeyframeTrack;
-
-		}
-
-		throw new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName );
-
-	}
-
-	function parseKeyframeTrack( json ) {
-
-		if ( json.type === undefined ) {
-
-			throw new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' );
-
-		}
-
-		var trackType = getTrackTypeForValueTypeName( json.type );
-
-		if ( json.times === undefined ) {
-
-			var times = [], values = [];
-
-			AnimationUtils.flattenJSON( json.keys, times, values, 'value' );
-
-			json.times = times;
-			json.values = values;
-
-		}
-
-		// derived classes can define a static parse method
-		if ( trackType.parse !== undefined ) {
-
-			return trackType.parse( json );
-
-		} else {
-
-			// by default, we assume a constructor compatible with the base
-			return new trackType( json.name, json.times, json.values, json.interpolation );
-
-		}
-
-	}
-
-	Object.assign( AnimationClip, {
-
-		parse: function ( json ) {
-
-			var tracks = [],
-				jsonTracks = json.tracks,
-				frameTime = 1.0 / ( json.fps || 1.0 );
-
-			for ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {
-
-				tracks.push( parseKeyframeTrack( jsonTracks[ i ] ).scale( frameTime ) );
-
-			}
-
-			return new AnimationClip( json.name, json.duration, tracks );
-
-		},
-
-		toJSON: function ( clip ) {
-
-			var tracks = [],
-				clipTracks = clip.tracks;
-
-			var json = {
-
-				'name': clip.name,
-				'duration': clip.duration,
-				'tracks': tracks,
-				'uuid': clip.uuid
-
-			};
-
-			for ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {
-
-				tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );
-
-			}
-
-			return json;
-
-		},
-
-		CreateFromMorphTargetSequence: function ( name, morphTargetSequence, fps, noLoop ) {
-
-			var numMorphTargets = morphTargetSequence.length;
-			var tracks = [];
-
-			for ( var i = 0; i < numMorphTargets; i ++ ) {
-
-				var times = [];
-				var values = [];
-
-				times.push(
-					( i + numMorphTargets - 1 ) % numMorphTargets,
-					i,
-					( i + 1 ) % numMorphTargets );
-
-				values.push( 0, 1, 0 );
-
-				var order = AnimationUtils.getKeyframeOrder( times );
-				times = AnimationUtils.sortedArray( times, 1, order );
-				values = AnimationUtils.sortedArray( values, 1, order );
-
-				// if there is a key at the first frame, duplicate it as the
-				// last frame as well for perfect loop.
-				if ( ! noLoop && times[ 0 ] === 0 ) {
-
-					times.push( numMorphTargets );
-					values.push( values[ 0 ] );
-
-				}
-
-				tracks.push(
-					new NumberKeyframeTrack(
-						'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',
-						times, values
-					).scale( 1.0 / fps ) );
-
-			}
-
-			return new AnimationClip( name, - 1, tracks );
-
-		},
-
-		findByName: function ( objectOrClipArray, name ) {
-
-			var clipArray = objectOrClipArray;
-
-			if ( ! Array.isArray( objectOrClipArray ) ) {
-
-				var o = objectOrClipArray;
-				clipArray = o.geometry && o.geometry.animations || o.animations;
-
-			}
-
-			for ( var i = 0; i < clipArray.length; i ++ ) {
-
-				if ( clipArray[ i ].name === name ) {
-
-					return clipArray[ i ];
-
-				}
-
-			}
-
-			return null;
-
-		},
-
-		CreateClipsFromMorphTargetSequences: function ( morphTargets, fps, noLoop ) {
-
-			var animationToMorphTargets = {};
-
-			// tested with https://regex101.com/ on trick sequences
-			// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
-			var pattern = /^([\w-]*?)([\d]+)$/;
-
-			// sort morph target names into animation groups based
-			// patterns like Walk_001, Walk_002, Run_001, Run_002
-			for ( var i = 0, il = morphTargets.length; i < il; i ++ ) {
-
-				var morphTarget = morphTargets[ i ];
-				var parts = morphTarget.name.match( pattern );
-
-				if ( parts && parts.length > 1 ) {
-
-					var name = parts[ 1 ];
-
-					var animationMorphTargets = animationToMorphTargets[ name ];
-					if ( ! animationMorphTargets ) {
-
-						animationToMorphTargets[ name ] = animationMorphTargets = [];
-
-					}
-
-					animationMorphTargets.push( morphTarget );
-
-				}
-
-			}
-
-			var clips = [];
-
-			for ( var name in animationToMorphTargets ) {
-
-				clips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );
-
-			}
-
-			return clips;
-
-		},
-
-		// parse the animation.hierarchy format
-		parseAnimation: function ( animation, bones ) {
-
-			if ( ! animation ) {
-
-				console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );
-				return null;
-
-			}
-
-			var addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {
-
-				// only return track if there are actually keys.
-				if ( animationKeys.length !== 0 ) {
-
-					var times = [];
-					var values = [];
-
-					AnimationUtils.flattenJSON( animationKeys, times, values, propertyName );
-
-					// empty keys are filtered out, so check again
-					if ( times.length !== 0 ) {
-
-						destTracks.push( new trackType( trackName, times, values ) );
-
-					}
-
-				}
-
-			};
-
-			var tracks = [];
-
-			var clipName = animation.name || 'default';
-			// automatic length determination in AnimationClip.
-			var duration = animation.length || - 1;
-			var fps = animation.fps || 30;
-
-			var hierarchyTracks = animation.hierarchy || [];
-
-			for ( var h = 0; h < hierarchyTracks.length; h ++ ) {
-
-				var animationKeys = hierarchyTracks[ h ].keys;
-
-				// skip empty tracks
-				if ( ! animationKeys || animationKeys.length === 0 ) continue;
-
-				// process morph targets
-				if ( animationKeys[ 0 ].morphTargets ) {
-
-					// figure out all morph targets used in this track
-					var morphTargetNames = {};
-
-					for ( var k = 0; k < animationKeys.length; k ++ ) {
-
-						if ( animationKeys[ k ].morphTargets ) {
-
-							for ( var m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {
-
-								morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;
-
-							}
-
-						}
-
-					}
-
-					// create a track for each morph target with all zero
-					// morphTargetInfluences except for the keys in which
-					// the morphTarget is named.
-					for ( var morphTargetName in morphTargetNames ) {
-
-						var times = [];
-						var values = [];
-
-						for ( var m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {
-
-							var animationKey = animationKeys[ k ];
-
-							times.push( animationKey.time );
-							values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );
-
-						}
-
-						tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );
-
-					}
-
-					duration = morphTargetNames.length * ( fps || 1.0 );
-
-				} else {
-
-					// ...assume skeletal animation
-
-					var boneName = '.bones[' + bones[ h ].name + ']';
-
-					addNonemptyTrack(
-						VectorKeyframeTrack, boneName + '.position',
-						animationKeys, 'pos', tracks );
-
-					addNonemptyTrack(
-						QuaternionKeyframeTrack, boneName + '.quaternion',
-						animationKeys, 'rot', tracks );
-
-					addNonemptyTrack(
-						VectorKeyframeTrack, boneName + '.scale',
-						animationKeys, 'scl', tracks );
-
-				}
-
-			}
-
-			if ( tracks.length === 0 ) {
-
-				return null;
-
-			}
-
-			var clip = new AnimationClip( clipName, duration, tracks );
-
-			return clip;
-
-		}
-
-	} );
-
-	Object.assign( AnimationClip.prototype, {
-
-		resetDuration: function () {
-
-			var tracks = this.tracks, duration = 0;
-
-			for ( var i = 0, n = tracks.length; i !== n; ++ i ) {
-
-				var track = this.tracks[ i ];
-
-				duration = Math.max( duration, track.times[ track.times.length - 1 ] );
-
-			}
-
-			this.duration = duration;
-
-			return this;
-
-		},
-
-		trim: function () {
-
-			for ( var i = 0; i < this.tracks.length; i ++ ) {
-
-				this.tracks[ i ].trim( 0, this.duration );
-
-			}
-
-			return this;
-
-		},
-
-		validate: function () {
-
-			var valid = true;
-
-			for ( var i = 0; i < this.tracks.length; i ++ ) {
-
-				valid = valid && this.tracks[ i ].validate();
-
-			}
-
-			return valid;
-
-		},
-
-		optimize: function () {
-
-			for ( var i = 0; i < this.tracks.length; i ++ ) {
-
-				this.tracks[ i ].optimize();
-
-			}
-
-			return this;
-
-		},
-
-
-		clone: function () {
-
-			var tracks = [];
-
-			for ( var i = 0; i < this.tracks.length; i ++ ) {
-
-				tracks.push( this.tracks[ i ].clone() );
-
-			}
-
-			return new AnimationClip( this.name, this.duration, tracks );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var Cache = {
-
-		enabled: false,
-
-		files: {},
-
-		add: function ( key, file ) {
-
-			if ( this.enabled === false ) return;
-
-			// console.log( 'THREE.Cache', 'Adding key:', key );
-
-			this.files[ key ] = file;
-
-		},
-
-		get: function ( key ) {
-
-			if ( this.enabled === false ) return;
-
-			// console.log( 'THREE.Cache', 'Checking key:', key );
-
-			return this.files[ key ];
-
-		},
-
-		remove: function ( key ) {
-
-			delete this.files[ key ];
-
-		},
-
-		clear: function () {
-
-			this.files = {};
-
-		}
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function LoadingManager( onLoad, onProgress, onError ) {
-
-		var scope = this;
-
-		var isLoading = false;
-		var itemsLoaded = 0;
-		var itemsTotal = 0;
-		var urlModifier = undefined;
-
-		// Refer to #5689 for the reason why we don't set .onStart
-		// in the constructor
-
-		this.onStart = undefined;
-		this.onLoad = onLoad;
-		this.onProgress = onProgress;
-		this.onError = onError;
-
-		this.itemStart = function ( url ) {
-
-			itemsTotal ++;
-
-			if ( isLoading === false ) {
-
-				if ( scope.onStart !== undefined ) {
-
-					scope.onStart( url, itemsLoaded, itemsTotal );
-
-				}
-
-			}
-
-			isLoading = true;
-
-		};
-
-		this.itemEnd = function ( url ) {
-
-			itemsLoaded ++;
-
-			if ( scope.onProgress !== undefined ) {
-
-				scope.onProgress( url, itemsLoaded, itemsTotal );
-
-			}
-
-			if ( itemsLoaded === itemsTotal ) {
-
-				isLoading = false;
-
-				if ( scope.onLoad !== undefined ) {
-
-					scope.onLoad();
-
-				}
-
-			}
-
-		};
-
-		this.itemError = function ( url ) {
-
-			if ( scope.onError !== undefined ) {
-
-				scope.onError( url );
-
-			}
-
-		};
-
-		this.resolveURL = function ( url ) {
-
-			if ( urlModifier ) {
-
-				return urlModifier( url );
-
-			}
-
-			return url;
-
-		};
-
-		this.setURLModifier = function ( transform ) {
-
-			urlModifier = transform;
-			return this;
-
-		};
-
-	}
-
-	var DefaultLoadingManager = new LoadingManager();
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var loading = {};
-
-	function FileLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( FileLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			if ( url === undefined ) url = '';
-
-			if ( this.path !== undefined ) url = this.path + url;
-
-			url = this.manager.resolveURL( url );
-
-			var scope = this;
-
-			var cached = Cache.get( url );
-
-			if ( cached !== undefined ) {
-
-				scope.manager.itemStart( url );
-
-				setTimeout( function () {
-
-					if ( onLoad ) onLoad( cached );
-
-					scope.manager.itemEnd( url );
-
-				}, 0 );
-
-				return cached;
-
-			}
-
-			// Check if request is duplicate
-
-			if ( loading[ url ] !== undefined ) {
-
-				loading[ url ].push( {
-
-					onLoad: onLoad,
-					onProgress: onProgress,
-					onError: onError
-
-				} );
-
-				return;
-
-			}
-
-			// Check for data: URI
-			var dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;
-			var dataUriRegexResult = url.match( dataUriRegex );
-
-			// Safari can not handle Data URIs through XMLHttpRequest so process manually
-			if ( dataUriRegexResult ) {
-
-				var mimeType = dataUriRegexResult[ 1 ];
-				var isBase64 = !! dataUriRegexResult[ 2 ];
-				var data = dataUriRegexResult[ 3 ];
-
-				data = decodeURIComponent( data );
-
-				if ( isBase64 ) data = atob( data );
-
-				try {
-
-					var response;
-					var responseType = ( this.responseType || '' ).toLowerCase();
-
-					switch ( responseType ) {
-
-						case 'arraybuffer':
-						case 'blob':
-
-							var view = new Uint8Array( data.length );
-
-							for ( var i = 0; i < data.length; i ++ ) {
-
-								view[ i ] = data.charCodeAt( i );
-
-							}
-
-							if ( responseType === 'blob' ) {
-
-								response = new Blob( [ view.buffer ], { type: mimeType } );
-
-							} else {
-
-								response = view.buffer;
-
-							}
-
-							break;
-
-						case 'document':
-
-							var parser = new DOMParser();
-							response = parser.parseFromString( data, mimeType );
-
-							break;
-
-						case 'json':
-
-							response = JSON.parse( data );
-
-							break;
-
-						default: // 'text' or other
-
-							response = data;
-
-							break;
-
-					}
-
-					// Wait for next browser tick like standard XMLHttpRequest event dispatching does
-					setTimeout( function () {
-
-						if ( onLoad ) onLoad( response );
-
-						scope.manager.itemEnd( url );
-
-					}, 0 );
-
-				} catch ( error ) {
-
-					// Wait for next browser tick like standard XMLHttpRequest event dispatching does
-					setTimeout( function () {
-
-						if ( onError ) onError( error );
-
-						scope.manager.itemError( url );
-						scope.manager.itemEnd( url );
-
-					}, 0 );
-
-				}
-
-			} else {
-
-				// Initialise array for duplicate requests
-
-				loading[ url ] = [];
-
-				loading[ url ].push( {
-
-					onLoad: onLoad,
-					onProgress: onProgress,
-					onError: onError
-
-				} );
-
-				var request = new XMLHttpRequest();
-
-				request.open( 'GET', url, true );
-
-				request.addEventListener( 'load', function ( event ) {
-
-					var response = this.response;
-
-					Cache.add( url, response );
-
-					var callbacks = loading[ url ];
-
-					delete loading[ url ];
-
-					if ( this.status === 200 || this.status === 0 ) {
-
-						// Some browsers return HTTP Status 0 when using non-http protocol
-						// e.g. 'file://' or 'data://'. Handle as success.
-
-						if ( this.status === 0 ) console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );
-
-						for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-							var callback = callbacks[ i ];
-							if ( callback.onLoad ) callback.onLoad( response );
-
-						}
-
-						scope.manager.itemEnd( url );
-
-					} else {
-
-						for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-							var callback = callbacks[ i ];
-							if ( callback.onError ) callback.onError( event );
-
-						}
-
-						scope.manager.itemError( url );
-						scope.manager.itemEnd( url );
-
-					}
-
-				}, false );
-
-				request.addEventListener( 'progress', function ( event ) {
-
-					var callbacks = loading[ url ];
-
-					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-						var callback = callbacks[ i ];
-						if ( callback.onProgress ) callback.onProgress( event );
-
-					}
-
-				}, false );
-
-				request.addEventListener( 'error', function ( event ) {
-
-					var callbacks = loading[ url ];
-
-					delete loading[ url ];
-
-					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-						var callback = callbacks[ i ];
-						if ( callback.onError ) callback.onError( event );
-
-					}
-
-					scope.manager.itemError( url );
-					scope.manager.itemEnd( url );
-
-				}, false );
-
-				request.addEventListener( 'abort', function ( event ) {
-
-					var callbacks = loading[ url ];
-
-					delete loading[ url ];
-
-					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-						var callback = callbacks[ i ];
-						if ( callback.onError ) callback.onError( event );
-
-					}
-
-					scope.manager.itemError( url );
-					scope.manager.itemEnd( url );
-
-				}, false );
-
-				if ( this.responseType !== undefined ) request.responseType = this.responseType;
-				if ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;
-
-				if ( request.overrideMimeType ) request.overrideMimeType( this.mimeType !== undefined ? this.mimeType : 'text/plain' );
-
-				for ( var header in this.requestHeader ) {
-
-					request.setRequestHeader( header, this.requestHeader[ header ] );
-
-				}
-
-				request.send( null );
-
-			}
-
-			scope.manager.itemStart( url );
-
-			return request;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		},
-
-		setResponseType: function ( value ) {
-
-			this.responseType = value;
-			return this;
-
-		},
-
-		setWithCredentials: function ( value ) {
-
-			this.withCredentials = value;
-			return this;
-
-		},
-
-		setMimeType: function ( value ) {
-
-			this.mimeType = value;
-			return this;
-
-		},
-
-		setRequestHeader: function ( value ) {
-
-			this.requestHeader = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io/
-	 */
-
-	function AnimationLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( AnimationLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var loader = new FileLoader( scope.manager );
-			loader.setPath( scope.path );
-			loader.load( url, function ( text ) {
-
-				onLoad( scope.parse( JSON.parse( text ) ) );
-
-			}, onProgress, onError );
-
-		},
-
-		parse: function ( json ) {
-
-			var animations = [];
-
-			for ( var i = 0; i < json.length; i ++ ) {
-
-				var clip = AnimationClip.parse( json[ i ] );
-
-				animations.push( clip );
-
-			}
-
-			return animations;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 *
-	 * Abstract Base class to block based textures loader (dds, pvr, ...)
-	 */
-
-	function CompressedTextureLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-		// override in sub classes
-		this._parser = null;
-
-	}
-
-	Object.assign( CompressedTextureLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var images = [];
-
-			var texture = new CompressedTexture();
-			texture.image = images;
-
-			var loader = new FileLoader( this.manager );
-			loader.setPath( this.path );
-			loader.setResponseType( 'arraybuffer' );
-
-			function loadTexture( i ) {
-
-				loader.load( url[ i ], function ( buffer ) {
-
-					var texDatas = scope._parser( buffer, true );
-
-					images[ i ] = {
-						width: texDatas.width,
-						height: texDatas.height,
-						format: texDatas.format,
-						mipmaps: texDatas.mipmaps
-					};
-
-					loaded += 1;
-
-					if ( loaded === 6 ) {
-
-						if ( texDatas.mipmapCount === 1 )
-							texture.minFilter = LinearFilter;
-
-						texture.format = texDatas.format;
-						texture.needsUpdate = true;
-
-						if ( onLoad ) onLoad( texture );
-
-					}
-
-				}, onProgress, onError );
-
-			}
-
-			if ( Array.isArray( url ) ) {
-
-				var loaded = 0;
-
-				for ( var i = 0, il = url.length; i < il; ++ i ) {
-
-					loadTexture( i );
-
-				}
-
-			} else {
-
-				// compressed cubemap texture stored in a single DDS file
-
-				loader.load( url, function ( buffer ) {
-
-					var texDatas = scope._parser( buffer, true );
-
-					if ( texDatas.isCubemap ) {
-
-						var faces = texDatas.mipmaps.length / texDatas.mipmapCount;
-
-						for ( var f = 0; f < faces; f ++ ) {
-
-							images[ f ] = { mipmaps: [] };
-
-							for ( var i = 0; i < texDatas.mipmapCount; i ++ ) {
-
-								images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );
-								images[ f ].format = texDatas.format;
-								images[ f ].width = texDatas.width;
-								images[ f ].height = texDatas.height;
-
-							}
-
-						}
-
-					} else {
-
-						texture.image.width = texDatas.width;
-						texture.image.height = texDatas.height;
-						texture.mipmaps = texDatas.mipmaps;
-
-					}
-
-					if ( texDatas.mipmapCount === 1 ) {
-
-						texture.minFilter = LinearFilter;
-
-					}
-
-					texture.format = texDatas.format;
-					texture.needsUpdate = true;
-
-					if ( onLoad ) onLoad( texture );
-
-				}, onProgress, onError );
-
-			}
-
-			return texture;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author Nikos M. / https://github.com/foo123/
-	 *
-	 * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
-	 */
-
-	function DataTextureLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-		// override in sub classes
-		this._parser = null;
-
-	}
-
-	Object.assign( DataTextureLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var texture = new DataTexture();
-
-			var loader = new FileLoader( this.manager );
-			loader.setResponseType( 'arraybuffer' );
-			loader.setPath( this.path );
-			loader.load( url, function ( buffer ) {
-
-				var texData = scope._parser( buffer );
-
-				if ( ! texData ) return;
-
-				if ( texData.image !== undefined ) {
-
-					texture.image = texData.image;
-
-				} else if ( texData.data !== undefined ) {
-
-					texture.image.width = texData.width;
-					texture.image.height = texData.height;
-					texture.image.data = texData.data;
-
-				}
-
-				texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping;
-				texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping;
-
-				texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter;
-				texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearMipMapLinearFilter;
-
-				texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1;
-
-				if ( texData.format !== undefined ) {
-
-					texture.format = texData.format;
-
-				}
-				if ( texData.type !== undefined ) {
-
-					texture.type = texData.type;
-
-				}
-
-				if ( texData.mipmaps !== undefined ) {
-
-					texture.mipmaps = texData.mipmaps;
-
-				}
-
-				if ( texData.mipmapCount === 1 ) {
-
-					texture.minFilter = LinearFilter;
-
-				}
-
-				texture.needsUpdate = true;
-
-				if ( onLoad ) onLoad( texture, texData );
-
-			}, onProgress, onError );
-
-
-			return texture;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-
-	function ImageLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( ImageLoader.prototype, {
-
-		crossOrigin: 'anonymous',
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			if ( url === undefined ) url = '';
-
-			if ( this.path !== undefined ) url = this.path + url;
-
-			url = this.manager.resolveURL( url );
-
-			var scope = this;
-
-			var cached = Cache.get( url );
-
-			if ( cached !== undefined ) {
-
-				scope.manager.itemStart( url );
-
-				setTimeout( function () {
-
-					if ( onLoad ) onLoad( cached );
-
-					scope.manager.itemEnd( url );
-
-				}, 0 );
-
-				return cached;
-
-			}
-
-			var image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' );
-
-			function onImageLoad() {
-
-				image.removeEventListener( 'load', onImageLoad, false );
-				image.removeEventListener( 'error', onImageError, false );
-
-				Cache.add( url, this );
-
-				if ( onLoad ) onLoad( this );
-
-				scope.manager.itemEnd( url );
-
-			}
-
-			function onImageError( event ) {
-
-				image.removeEventListener( 'load', onImageLoad, false );
-				image.removeEventListener( 'error', onImageError, false );
-
-				if ( onError ) onError( event );
-
-				scope.manager.itemError( url );
-				scope.manager.itemEnd( url );
-
-			}
-
-			image.addEventListener( 'load', onImageLoad, false );
-			image.addEventListener( 'error', onImageError, false );
-
-			if ( url.substr( 0, 5 ) !== 'data:' ) {
-
-				if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;
-
-			}
-
-			scope.manager.itemStart( url );
-
-			image.src = url;
-
-			return image;
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-
-	function CubeTextureLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( CubeTextureLoader.prototype, {
-
-		crossOrigin: 'anonymous',
-
-		load: function ( urls, onLoad, onProgress, onError ) {
-
-			var texture = new CubeTexture();
-
-			var loader = new ImageLoader( this.manager );
-			loader.setCrossOrigin( this.crossOrigin );
-			loader.setPath( this.path );
-
-			var loaded = 0;
-
-			function loadTexture( i ) {
-
-				loader.load( urls[ i ], function ( image ) {
-
-					texture.images[ i ] = image;
-
-					loaded ++;
-
-					if ( loaded === 6 ) {
-
-						texture.needsUpdate = true;
-
-						if ( onLoad ) onLoad( texture );
-
-					}
-
-				}, undefined, onError );
-
-			}
-
-			for ( var i = 0; i < urls.length; ++ i ) {
-
-				loadTexture( i );
-
-			}
-
-			return texture;
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-
-	function TextureLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( TextureLoader.prototype, {
-
-		crossOrigin: 'anonymous',
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var texture = new Texture();
-
-			var loader = new ImageLoader( this.manager );
-			loader.setCrossOrigin( this.crossOrigin );
-			loader.setPath( this.path );
-
-			loader.load( url, function ( image ) {
-
-				texture.image = image;
-
-				// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.
-				var isJPEG = url.search( /\.jpe?g($|\?)/i ) > 0 || url.search( /^data\:image\/jpeg/ ) === 0;
-
-				texture.format = isJPEG ? RGBFormat : RGBAFormat;
-				texture.needsUpdate = true;
-
-				if ( onLoad !== undefined ) {
-
-					onLoad( texture );
-
-				}
-
-			}, onProgress, onError );
-
-			return texture;
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * Extensible curve object
-	 *
-	 * Some common of curve methods:
-	 * .getPoint( t, optionalTarget ), .getTangent( t )
-	 * .getPointAt( u, optionalTarget ), .getTangentAt( u )
-	 * .getPoints(), .getSpacedPoints()
-	 * .getLength()
-	 * .updateArcLengths()
-	 *
-	 * This following curves inherit from THREE.Curve:
-	 *
-	 * -- 2D curves --
-	 * THREE.ArcCurve
-	 * THREE.CubicBezierCurve
-	 * THREE.EllipseCurve
-	 * THREE.LineCurve
-	 * THREE.QuadraticBezierCurve
-	 * THREE.SplineCurve
-	 *
-	 * -- 3D curves --
-	 * THREE.CatmullRomCurve3
-	 * THREE.CubicBezierCurve3
-	 * THREE.LineCurve3
-	 * THREE.QuadraticBezierCurve3
-	 *
-	 * A series of curves can be represented as a THREE.CurvePath.
-	 *
-	 **/
-
-	/**************************************************************
-	 *	Abstract Curve base class
-	 **************************************************************/
-
-	function Curve() {
-
-		this.type = 'Curve';
-
-		this.arcLengthDivisions = 200;
-
-	}
-
-	Object.assign( Curve.prototype, {
-
-		// Virtual base class method to overwrite and implement in subclasses
-		//	- t [0 .. 1]
-
-		getPoint: function ( /* t, optionalTarget */ ) {
-
-			console.warn( 'THREE.Curve: .getPoint() not implemented.' );
-			return null;
-
-		},
-
-		// Get point at relative position in curve according to arc length
-		// - u [0 .. 1]
-
-		getPointAt: function ( u, optionalTarget ) {
-
-			var t = this.getUtoTmapping( u );
-			return this.getPoint( t, optionalTarget );
-
-		},
-
-		// Get sequence of points using getPoint( t )
-
-		getPoints: function ( divisions ) {
-
-			if ( divisions === undefined ) divisions = 5;
-
-			var points = [];
-
-			for ( var d = 0; d <= divisions; d ++ ) {
-
-				points.push( this.getPoint( d / divisions ) );
-
-			}
-
-			return points;
-
-		},
-
-		// Get sequence of points using getPointAt( u )
-
-		getSpacedPoints: function ( divisions ) {
-
-			if ( divisions === undefined ) divisions = 5;
-
-			var points = [];
-
-			for ( var d = 0; d <= divisions; d ++ ) {
-
-				points.push( this.getPointAt( d / divisions ) );
-
-			}
-
-			return points;
-
-		},
-
-		// Get total curve arc length
-
-		getLength: function () {
-
-			var lengths = this.getLengths();
-			return lengths[ lengths.length - 1 ];
-
-		},
-
-		// Get list of cumulative segment lengths
-
-		getLengths: function ( divisions ) {
-
-			if ( divisions === undefined ) divisions = this.arcLengthDivisions;
-
-			if ( this.cacheArcLengths &&
-				( this.cacheArcLengths.length === divisions + 1 ) &&
-				! this.needsUpdate ) {
-
-				return this.cacheArcLengths;
-
-			}
-
-			this.needsUpdate = false;
-
-			var cache = [];
-			var current, last = this.getPoint( 0 );
-			var p, sum = 0;
-
-			cache.push( 0 );
-
-			for ( p = 1; p <= divisions; p ++ ) {
-
-				current = this.getPoint( p / divisions );
-				sum += current.distanceTo( last );
-				cache.push( sum );
-				last = current;
-
-			}
-
-			this.cacheArcLengths = cache;
-
-			return cache; // { sums: cache, sum: sum }; Sum is in the last element.
-
-		},
-
-		updateArcLengths: function () {
-
-			this.needsUpdate = true;
-			this.getLengths();
-
-		},
-
-		// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant
-
-		getUtoTmapping: function ( u, distance ) {
-
-			var arcLengths = this.getLengths();
-
-			var i = 0, il = arcLengths.length;
-
-			var targetArcLength; // The targeted u distance value to get
-
-			if ( distance ) {
-
-				targetArcLength = distance;
-
-			} else {
-
-				targetArcLength = u * arcLengths[ il - 1 ];
-
-			}
-
-			// binary search for the index with largest value smaller than target u distance
-
-			var low = 0, high = il - 1, comparison;
-
-			while ( low <= high ) {
-
-				i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats
-
-				comparison = arcLengths[ i ] - targetArcLength;
-
-				if ( comparison < 0 ) {
-
-					low = i + 1;
-
-				} else if ( comparison > 0 ) {
-
-					high = i - 1;
-
-				} else {
-
-					high = i;
-					break;
-
-					// DONE
-
-				}
-
-			}
-
-			i = high;
-
-			if ( arcLengths[ i ] === targetArcLength ) {
-
-				return i / ( il - 1 );
-
-			}
-
-			// we could get finer grain at lengths, or use simple interpolation between two points
-
-			var lengthBefore = arcLengths[ i ];
-			var lengthAfter = arcLengths[ i + 1 ];
-
-			var segmentLength = lengthAfter - lengthBefore;
-
-			// determine where we are between the 'before' and 'after' points
-
-			var segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;
-
-			// add that fractional amount to t
-
-			var t = ( i + segmentFraction ) / ( il - 1 );
-
-			return t;
-
-		},
-
-		// Returns a unit vector tangent at t
-		// In case any sub curve does not implement its tangent derivation,
-		// 2 points a small delta apart will be used to find its gradient
-		// which seems to give a reasonable approximation
-
-		getTangent: function ( t ) {
-
-			var delta = 0.0001;
-			var t1 = t - delta;
-			var t2 = t + delta;
-
-			// Capping in case of danger
-
-			if ( t1 < 0 ) t1 = 0;
-			if ( t2 > 1 ) t2 = 1;
-
-			var pt1 = this.getPoint( t1 );
-			var pt2 = this.getPoint( t2 );
-
-			var vec = pt2.clone().sub( pt1 );
-			return vec.normalize();
-
-		},
-
-		getTangentAt: function ( u ) {
-
-			var t = this.getUtoTmapping( u );
-			return this.getTangent( t );
-
-		},
-
-		computeFrenetFrames: function ( segments, closed ) {
-
-			// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf
-
-			var normal = new Vector3();
-
-			var tangents = [];
-			var normals = [];
-			var binormals = [];
-
-			var vec = new Vector3();
-			var mat = new Matrix4();
-
-			var i, u, theta;
-
-			// compute the tangent vectors for each segment on the curve
-
-			for ( i = 0; i <= segments; i ++ ) {
-
-				u = i / segments;
-
-				tangents[ i ] = this.getTangentAt( u );
-				tangents[ i ].normalize();
-
-			}
-
-			// select an initial normal vector perpendicular to the first tangent vector,
-			// and in the direction of the minimum tangent xyz component
-
-			normals[ 0 ] = new Vector3();
-			binormals[ 0 ] = new Vector3();
-			var min = Number.MAX_VALUE;
-			var tx = Math.abs( tangents[ 0 ].x );
-			var ty = Math.abs( tangents[ 0 ].y );
-			var tz = Math.abs( tangents[ 0 ].z );
-
-			if ( tx <= min ) {
-
-				min = tx;
-				normal.set( 1, 0, 0 );
-
-			}
-
-			if ( ty <= min ) {
-
-				min = ty;
-				normal.set( 0, 1, 0 );
-
-			}
-
-			if ( tz <= min ) {
-
-				normal.set( 0, 0, 1 );
-
-			}
-
-			vec.crossVectors( tangents[ 0 ], normal ).normalize();
-
-			normals[ 0 ].crossVectors( tangents[ 0 ], vec );
-			binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );
-
-
-			// compute the slowly-varying normal and binormal vectors for each segment on the curve
-
-			for ( i = 1; i <= segments; i ++ ) {
-
-				normals[ i ] = normals[ i - 1 ].clone();
-
-				binormals[ i ] = binormals[ i - 1 ].clone();
-
-				vec.crossVectors( tangents[ i - 1 ], tangents[ i ] );
-
-				if ( vec.length() > Number.EPSILON ) {
-
-					vec.normalize();
-
-					theta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors
-
-					normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );
-
-				}
-
-				binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );
-
-			}
-
-			// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same
-
-			if ( closed === true ) {
-
-				theta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );
-				theta /= segments;
-
-				if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {
-
-					theta = - theta;
-
-				}
-
-				for ( i = 1; i <= segments; i ++ ) {
-
-					// twist a little...
-					normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );
-					binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );
-
-				}
-
-			}
-
-			return {
-				tangents: tangents,
-				normals: normals,
-				binormals: binormals
-			};
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.arcLengthDivisions = source.arcLengthDivisions;
-
-			return this;
-
-		},
-
-		toJSON: function () {
-
-			var data = {
-				metadata: {
-					version: 4.5,
-					type: 'Curve',
-					generator: 'Curve.toJSON'
-				}
-			};
-
-			data.arcLengthDivisions = this.arcLengthDivisions;
-			data.type = this.type;
-
-			return data;
-
-		},
-
-		fromJSON: function ( json ) {
-
-			this.arcLengthDivisions = json.arcLengthDivisions;
-
-			return this;
-
-		}
-
-	} );
-
-	function EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
-
-		Curve.call( this );
-
-		this.type = 'EllipseCurve';
-
-		this.aX = aX || 0;
-		this.aY = aY || 0;
-
-		this.xRadius = xRadius || 1;
-		this.yRadius = yRadius || 1;
-
-		this.aStartAngle = aStartAngle || 0;
-		this.aEndAngle = aEndAngle || 2 * Math.PI;
-
-		this.aClockwise = aClockwise || false;
-
-		this.aRotation = aRotation || 0;
-
-	}
-
-	EllipseCurve.prototype = Object.create( Curve.prototype );
-	EllipseCurve.prototype.constructor = EllipseCurve;
-
-	EllipseCurve.prototype.isEllipseCurve = true;
-
-	EllipseCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		var twoPi = Math.PI * 2;
-		var deltaAngle = this.aEndAngle - this.aStartAngle;
-		var samePoints = Math.abs( deltaAngle ) < Number.EPSILON;
-
-		// ensures that deltaAngle is 0 .. 2 PI
-		while ( deltaAngle < 0 ) deltaAngle += twoPi;
-		while ( deltaAngle > twoPi ) deltaAngle -= twoPi;
-
-		if ( deltaAngle < Number.EPSILON ) {
-
-			if ( samePoints ) {
-
-				deltaAngle = 0;
-
-			} else {
-
-				deltaAngle = twoPi;
-
-			}
-
-		}
-
-		if ( this.aClockwise === true && ! samePoints ) {
-
-			if ( deltaAngle === twoPi ) {
-
-				deltaAngle = - twoPi;
-
-			} else {
-
-				deltaAngle = deltaAngle - twoPi;
-
-			}
-
-		}
-
-		var angle = this.aStartAngle + t * deltaAngle;
-		var x = this.aX + this.xRadius * Math.cos( angle );
-		var y = this.aY + this.yRadius * Math.sin( angle );
-
-		if ( this.aRotation !== 0 ) {
-
-			var cos = Math.cos( this.aRotation );
-			var sin = Math.sin( this.aRotation );
-
-			var tx = x - this.aX;
-			var ty = y - this.aY;
-
-			// Rotate the point about the center of the ellipse.
-			x = tx * cos - ty * sin + this.aX;
-			y = tx * sin + ty * cos + this.aY;
-
-		}
-
-		return point.set( x, y );
-
-	};
-
-	EllipseCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.aX = source.aX;
-		this.aY = source.aY;
-
-		this.xRadius = source.xRadius;
-		this.yRadius = source.yRadius;
-
-		this.aStartAngle = source.aStartAngle;
-		this.aEndAngle = source.aEndAngle;
-
-		this.aClockwise = source.aClockwise;
-
-		this.aRotation = source.aRotation;
-
-		return this;
-
-	};
-
-
-	EllipseCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.aX = this.aX;
-		data.aY = this.aY;
-
-		data.xRadius = this.xRadius;
-		data.yRadius = this.yRadius;
-
-		data.aStartAngle = this.aStartAngle;
-		data.aEndAngle = this.aEndAngle;
-
-		data.aClockwise = this.aClockwise;
-
-		data.aRotation = this.aRotation;
-
-		return data;
-
-	};
-
-	EllipseCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.aX = json.aX;
-		this.aY = json.aY;
-
-		this.xRadius = json.xRadius;
-		this.yRadius = json.yRadius;
-
-		this.aStartAngle = json.aStartAngle;
-		this.aEndAngle = json.aEndAngle;
-
-		this.aClockwise = json.aClockwise;
-
-		this.aRotation = json.aRotation;
-
-		return this;
-
-	};
-
-	function ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
-
-		EllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );
-
-		this.type = 'ArcCurve';
-
-	}
-
-	ArcCurve.prototype = Object.create( EllipseCurve.prototype );
-	ArcCurve.prototype.constructor = ArcCurve;
-
-	ArcCurve.prototype.isArcCurve = true;
-
-	/**
-	 * @author zz85 https://github.com/zz85
-	 *
-	 * Centripetal CatmullRom Curve - which is useful for avoiding
-	 * cusps and self-intersections in non-uniform catmull rom curves.
-	 * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
-	 *
-	 * curve.type accepts centripetal(default), chordal and catmullrom
-	 * curve.tension is used for catmullrom which defaults to 0.5
-	 */
-
-
-	/*
-	Based on an optimized c++ solution in
-	 - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
-	 - http://ideone.com/NoEbVM
-
-	This CubicPoly class could be used for reusing some variables and calculations,
-	but for three.js curve use, it could be possible inlined and flatten into a single function call
-	which can be placed in CurveUtils.
-	*/
-
-	function CubicPoly() {
-
-		var c0 = 0, c1 = 0, c2 = 0, c3 = 0;
-
-		/*
-		 * Compute coefficients for a cubic polynomial
-		 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
-		 * such that
-		 *   p(0) = x0, p(1) = x1
-		 *  and
-		 *   p'(0) = t0, p'(1) = t1.
-		 */
-		function init( x0, x1, t0, t1 ) {
-
-			c0 = x0;
-			c1 = t0;
-			c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;
-			c3 = 2 * x0 - 2 * x1 + t0 + t1;
-
-		}
-
-		return {
-
-			initCatmullRom: function ( x0, x1, x2, x3, tension ) {
-
-				init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );
-
-			},
-
-			initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {
-
-				// compute tangents when parameterized in [t1,t2]
-				var t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;
-				var t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;
-
-				// rescale tangents for parametrization in [0,1]
-				t1 *= dt1;
-				t2 *= dt1;
-
-				init( x1, x2, t1, t2 );
-
-			},
-
-			calc: function ( t ) {
-
-				var t2 = t * t;
-				var t3 = t2 * t;
-				return c0 + c1 * t + c2 * t2 + c3 * t3;
-
-			}
-
-		};
-
-	}
-
-	//
-
-	var tmp = new Vector3();
-	var px = new CubicPoly(), py = new CubicPoly(), pz = new CubicPoly();
-
-	function CatmullRomCurve3( points, closed, curveType, tension ) {
-
-		Curve.call( this );
-
-		this.type = 'CatmullRomCurve3';
-
-		this.points = points || [];
-		this.closed = closed || false;
-		this.curveType = curveType || 'centripetal';
-		this.tension = tension || 0.5;
-
-	}
-
-	CatmullRomCurve3.prototype = Object.create( Curve.prototype );
-	CatmullRomCurve3.prototype.constructor = CatmullRomCurve3;
-
-	CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;
-
-	CatmullRomCurve3.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector3();
-
-		var points = this.points;
-		var l = points.length;
-
-		var p = ( l - ( this.closed ? 0 : 1 ) ) * t;
-		var intPoint = Math.floor( p );
-		var weight = p - intPoint;
-
-		if ( this.closed ) {
-
-			intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / l ) + 1 ) * l;
-
-		} else if ( weight === 0 && intPoint === l - 1 ) {
-
-			intPoint = l - 2;
-			weight = 1;
-
-		}
-
-		var p0, p1, p2, p3; // 4 points
-
-		if ( this.closed || intPoint > 0 ) {
-
-			p0 = points[ ( intPoint - 1 ) % l ];
-
-		} else {
-
-			// extrapolate first point
-			tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );
-			p0 = tmp;
-
-		}
-
-		p1 = points[ intPoint % l ];
-		p2 = points[ ( intPoint + 1 ) % l ];
-
-		if ( this.closed || intPoint + 2 < l ) {
-
-			p3 = points[ ( intPoint + 2 ) % l ];
-
-		} else {
-
-			// extrapolate last point
-			tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );
-			p3 = tmp;
-
-		}
-
-		if ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) {
-
-			// init Centripetal / Chordal Catmull-Rom
-			var pow = this.curveType === 'chordal' ? 0.5 : 0.25;
-			var dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );
-			var dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );
-			var dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );
-
-			// safety check for repeated points
-			if ( dt1 < 1e-4 ) dt1 = 1.0;
-			if ( dt0 < 1e-4 ) dt0 = dt1;
-			if ( dt2 < 1e-4 ) dt2 = dt1;
-
-			px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );
-			py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );
-			pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );
-
-		} else if ( this.curveType === 'catmullrom' ) {
-
-			px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension );
-			py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension );
-			pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension );
-
-		}
-
-		point.set(
-			px.calc( weight ),
-			py.calc( weight ),
-			pz.calc( weight )
-		);
-
-		return point;
-
-	};
-
-	CatmullRomCurve3.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.points = [];
-
-		for ( var i = 0, l = source.points.length; i < l; i ++ ) {
-
-			var point = source.points[ i ];
-
-			this.points.push( point.clone() );
-
-		}
-
-		this.closed = source.closed;
-		this.curveType = source.curveType;
-		this.tension = source.tension;
-
-		return this;
-
-	};
-
-	CatmullRomCurve3.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.points = [];
-
-		for ( var i = 0, l = this.points.length; i < l; i ++ ) {
-
-			var point = this.points[ i ];
-			data.points.push( point.toArray() );
-
-		}
-
-		data.closed = this.closed;
-		data.curveType = this.curveType;
-		data.tension = this.tension;
-
-		return data;
-
-	};
-
-	CatmullRomCurve3.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.points = [];
-
-		for ( var i = 0, l = json.points.length; i < l; i ++ ) {
-
-			var point = json.points[ i ];
-			this.points.push( new Vector3().fromArray( point ) );
-
-		}
-
-		this.closed = json.closed;
-		this.curveType = json.curveType;
-		this.tension = json.tension;
-
-		return this;
-
-	};
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 *
-	 * Bezier Curves formulas obtained from
-	 * http://en.wikipedia.org/wiki/Bézier_curve
-	 */
-
-	function CatmullRom( t, p0, p1, p2, p3 ) {
-
-		var v0 = ( p2 - p0 ) * 0.5;
-		var v1 = ( p3 - p1 ) * 0.5;
-		var t2 = t * t;
-		var t3 = t * t2;
-		return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;
-
-	}
-
-	//
-
-	function QuadraticBezierP0( t, p ) {
-
-		var k = 1 - t;
-		return k * k * p;
-
-	}
-
-	function QuadraticBezierP1( t, p ) {
-
-		return 2 * ( 1 - t ) * t * p;
-
-	}
-
-	function QuadraticBezierP2( t, p ) {
-
-		return t * t * p;
-
-	}
-
-	function QuadraticBezier( t, p0, p1, p2 ) {
-
-		return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +
-			QuadraticBezierP2( t, p2 );
-
-	}
-
-	//
-
-	function CubicBezierP0( t, p ) {
-
-		var k = 1 - t;
-		return k * k * k * p;
-
-	}
-
-	function CubicBezierP1( t, p ) {
-
-		var k = 1 - t;
-		return 3 * k * k * t * p;
-
-	}
-
-	function CubicBezierP2( t, p ) {
-
-		return 3 * ( 1 - t ) * t * t * p;
-
-	}
-
-	function CubicBezierP3( t, p ) {
-
-		return t * t * t * p;
-
-	}
-
-	function CubicBezier( t, p0, p1, p2, p3 ) {
-
-		return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +
-			CubicBezierP3( t, p3 );
-
-	}
-
-	function CubicBezierCurve( v0, v1, v2, v3 ) {
-
-		Curve.call( this );
-
-		this.type = 'CubicBezierCurve';
-
-		this.v0 = v0 || new Vector2();
-		this.v1 = v1 || new Vector2();
-		this.v2 = v2 || new Vector2();
-		this.v3 = v3 || new Vector2();
-
-	}
-
-	CubicBezierCurve.prototype = Object.create( Curve.prototype );
-	CubicBezierCurve.prototype.constructor = CubicBezierCurve;
-
-	CubicBezierCurve.prototype.isCubicBezierCurve = true;
-
-	CubicBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;
-
-		point.set(
-			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
-			CubicBezier( t, v0.y, v1.y, v2.y, v3.y )
-		);
-
-		return point;
-
-	};
-
-	CubicBezierCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v0.copy( source.v0 );
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-		this.v3.copy( source.v3 );
-
-		return this;
-
-	};
-
-	CubicBezierCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v0 = this.v0.toArray();
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-		data.v3 = this.v3.toArray();
-
-		return data;
-
-	};
-
-	CubicBezierCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v0.fromArray( json.v0 );
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-		this.v3.fromArray( json.v3 );
-
-		return this;
-
-	};
-
-	function CubicBezierCurve3( v0, v1, v2, v3 ) {
-
-		Curve.call( this );
-
-		this.type = 'CubicBezierCurve3';
-
-		this.v0 = v0 || new Vector3();
-		this.v1 = v1 || new Vector3();
-		this.v2 = v2 || new Vector3();
-		this.v3 = v3 || new Vector3();
-
-	}
-
-	CubicBezierCurve3.prototype = Object.create( Curve.prototype );
-	CubicBezierCurve3.prototype.constructor = CubicBezierCurve3;
-
-	CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;
-
-	CubicBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector3();
-
-		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;
-
-		point.set(
-			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
-			CubicBezier( t, v0.y, v1.y, v2.y, v3.y ),
-			CubicBezier( t, v0.z, v1.z, v2.z, v3.z )
-		);
-
-		return point;
-
-	};
-
-	CubicBezierCurve3.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v0.copy( source.v0 );
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-		this.v3.copy( source.v3 );
-
-		return this;
-
-	};
-
-	CubicBezierCurve3.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v0 = this.v0.toArray();
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-		data.v3 = this.v3.toArray();
-
-		return data;
-
-	};
-
-	CubicBezierCurve3.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v0.fromArray( json.v0 );
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-		this.v3.fromArray( json.v3 );
-
-		return this;
-
-	};
-
-	function LineCurve( v1, v2 ) {
-
-		Curve.call( this );
-
-		this.type = 'LineCurve';
-
-		this.v1 = v1 || new Vector2();
-		this.v2 = v2 || new Vector2();
-
-	}
-
-	LineCurve.prototype = Object.create( Curve.prototype );
-	LineCurve.prototype.constructor = LineCurve;
-
-	LineCurve.prototype.isLineCurve = true;
-
-	LineCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		if ( t === 1 ) {
-
-			point.copy( this.v2 );
-
-		} else {
-
-			point.copy( this.v2 ).sub( this.v1 );
-			point.multiplyScalar( t ).add( this.v1 );
-
-		}
-
-		return point;
-
-	};
-
-	// Line curve is linear, so we can overwrite default getPointAt
-
-	LineCurve.prototype.getPointAt = function ( u, optionalTarget ) {
-
-		return this.getPoint( u, optionalTarget );
-
-	};
-
-	LineCurve.prototype.getTangent = function ( /* t */ ) {
-
-		var tangent = this.v2.clone().sub( this.v1 );
-
-		return tangent.normalize();
-
-	};
-
-	LineCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-
-		return this;
-
-	};
-
-	LineCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-
-		return data;
-
-	};
-
-	LineCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-
-		return this;
-
-	};
-
-	function LineCurve3( v1, v2 ) {
-
-		Curve.call( this );
-
-		this.type = 'LineCurve3';
-
-		this.v1 = v1 || new Vector3();
-		this.v2 = v2 || new Vector3();
-
-	}
-
-	LineCurve3.prototype = Object.create( Curve.prototype );
-	LineCurve3.prototype.constructor = LineCurve3;
-
-	LineCurve3.prototype.isLineCurve3 = true;
-
-	LineCurve3.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector3();
-
-		if ( t === 1 ) {
-
-			point.copy( this.v2 );
-
-		} else {
-
-			point.copy( this.v2 ).sub( this.v1 );
-			point.multiplyScalar( t ).add( this.v1 );
-
-		}
-
-		return point;
-
-	};
-
-	// Line curve is linear, so we can overwrite default getPointAt
-
-	LineCurve3.prototype.getPointAt = function ( u, optionalTarget ) {
-
-		return this.getPoint( u, optionalTarget );
-
-	};
-
-	LineCurve3.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-
-		return this;
-
-	};
-
-	LineCurve3.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-
-		return data;
-
-	};
-
-	LineCurve3.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-
-		return this;
-
-	};
-
-	function QuadraticBezierCurve( v0, v1, v2 ) {
-
-		Curve.call( this );
-
-		this.type = 'QuadraticBezierCurve';
-
-		this.v0 = v0 || new Vector2();
-		this.v1 = v1 || new Vector2();
-		this.v2 = v2 || new Vector2();
-
-	}
-
-	QuadraticBezierCurve.prototype = Object.create( Curve.prototype );
-	QuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve;
-
-	QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;
-
-	QuadraticBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		var v0 = this.v0, v1 = this.v1, v2 = this.v2;
-
-		point.set(
-			QuadraticBezier( t, v0.x, v1.x, v2.x ),
-			QuadraticBezier( t, v0.y, v1.y, v2.y )
-		);
-
-		return point;
-
-	};
-
-	QuadraticBezierCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v0.copy( source.v0 );
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-
-		return this;
-
-	};
-
-	QuadraticBezierCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v0 = this.v0.toArray();
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-
-		return data;
-
-	};
-
-	QuadraticBezierCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v0.fromArray( json.v0 );
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-
-		return this;
-
-	};
-
-	function QuadraticBezierCurve3( v0, v1, v2 ) {
-
-		Curve.call( this );
-
-		this.type = 'QuadraticBezierCurve3';
-
-		this.v0 = v0 || new Vector3();
-		this.v1 = v1 || new Vector3();
-		this.v2 = v2 || new Vector3();
-
-	}
-
-	QuadraticBezierCurve3.prototype = Object.create( Curve.prototype );
-	QuadraticBezierCurve3.prototype.constructor = QuadraticBezierCurve3;
-
-	QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;
-
-	QuadraticBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector3();
-
-		var v0 = this.v0, v1 = this.v1, v2 = this.v2;
-
-		point.set(
-			QuadraticBezier( t, v0.x, v1.x, v2.x ),
-			QuadraticBezier( t, v0.y, v1.y, v2.y ),
-			QuadraticBezier( t, v0.z, v1.z, v2.z )
-		);
-
-		return point;
-
-	};
-
-	QuadraticBezierCurve3.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v0.copy( source.v0 );
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-
-		return this;
-
-	};
-
-	QuadraticBezierCurve3.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v0 = this.v0.toArray();
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-
-		return data;
-
-	};
-
-	QuadraticBezierCurve3.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v0.fromArray( json.v0 );
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-
-		return this;
-
-	};
-
-	function SplineCurve( points /* array of Vector2 */ ) {
-
-		Curve.call( this );
-
-		this.type = 'SplineCurve';
-
-		this.points = points || [];
-
-	}
-
-	SplineCurve.prototype = Object.create( Curve.prototype );
-	SplineCurve.prototype.constructor = SplineCurve;
-
-	SplineCurve.prototype.isSplineCurve = true;
-
-	SplineCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		var points = this.points;
-		var p = ( points.length - 1 ) * t;
-
-		var intPoint = Math.floor( p );
-		var weight = p - intPoint;
-
-		var p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];
-		var p1 = points[ intPoint ];
-		var p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
-		var p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];
-
-		point.set(
-			CatmullRom( weight, p0.x, p1.x, p2.x, p3.x ),
-			CatmullRom( weight, p0.y, p1.y, p2.y, p3.y )
-		);
-
-		return point;
-
-	};
-
-	SplineCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.points = [];
-
-		for ( var i = 0, l = source.points.length; i < l; i ++ ) {
-
-			var point = source.points[ i ];
-
-			this.points.push( point.clone() );
-
-		}
-
-		return this;
-
-	};
-
-	SplineCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.points = [];
-
-		for ( var i = 0, l = this.points.length; i < l; i ++ ) {
-
-			var point = this.points[ i ];
-			data.points.push( point.toArray() );
-
-		}
-
-		return data;
-
-	};
-
-	SplineCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.points = [];
-
-		for ( var i = 0, l = json.points.length; i < l; i ++ ) {
-
-			var point = json.points[ i ];
-			this.points.push( new Vector2().fromArray( point ) );
-
-		}
-
-		return this;
-
-	};
-
-
-
-	var Curves = /*#__PURE__*/Object.freeze({
-		ArcCurve: ArcCurve,
-		CatmullRomCurve3: CatmullRomCurve3,
-		CubicBezierCurve: CubicBezierCurve,
-		CubicBezierCurve3: CubicBezierCurve3,
-		EllipseCurve: EllipseCurve,
-		LineCurve: LineCurve,
-		LineCurve3: LineCurve3,
-		QuadraticBezierCurve: QuadraticBezierCurve,
-		QuadraticBezierCurve3: QuadraticBezierCurve3,
-		SplineCurve: SplineCurve
-	});
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 *
-	 **/
-
-	/**************************************************************
-	 *	Curved Path - a curve path is simply a array of connected
-	 *  curves, but retains the api of a curve
-	 **************************************************************/
-
-	function CurvePath() {
-
-		Curve.call( this );
-
-		this.type = 'CurvePath';
-
-		this.curves = [];
-		this.autoClose = false; // Automatically closes the path
-
-	}
-
-	CurvePath.prototype = Object.assign( Object.create( Curve.prototype ), {
-
-		constructor: CurvePath,
-
-		add: function ( curve ) {
-
-			this.curves.push( curve );
-
-		},
-
-		closePath: function () {
-
-			// Add a line curve if start and end of lines are not connected
-			var startPoint = this.curves[ 0 ].getPoint( 0 );
-			var endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );
-
-			if ( ! startPoint.equals( endPoint ) ) {
-
-				this.curves.push( new LineCurve( endPoint, startPoint ) );
-
-			}
-
-		},
-
-		// To get accurate point with reference to
-		// entire path distance at time t,
-		// following has to be done:
-
-		// 1. Length of each sub path have to be known
-		// 2. Locate and identify type of curve
-		// 3. Get t for the curve
-		// 4. Return curve.getPointAt(t')
-
-		getPoint: function ( t ) {
-
-			var d = t * this.getLength();
-			var curveLengths = this.getCurveLengths();
-			var i = 0;
-
-			// To think about boundaries points.
-
-			while ( i < curveLengths.length ) {
-
-				if ( curveLengths[ i ] >= d ) {
-
-					var diff = curveLengths[ i ] - d;
-					var curve = this.curves[ i ];
-
-					var segmentLength = curve.getLength();
-					var u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;
-
-					return curve.getPointAt( u );
-
-				}
-
-				i ++;
-
-			}
-
-			return null;
-
-			// loop where sum != 0, sum > d , sum+1 <d
-
-		},
-
-		// We cannot use the default THREE.Curve getPoint() with getLength() because in
-		// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
-		// getPoint() depends on getLength
-
-		getLength: function () {
-
-			var lens = this.getCurveLengths();
-			return lens[ lens.length - 1 ];
-
-		},
-
-		// cacheLengths must be recalculated.
-		updateArcLengths: function () {
-
-			this.needsUpdate = true;
-			this.cacheLengths = null;
-			this.getCurveLengths();
-
-		},
-
-		// Compute lengths and cache them
-		// We cannot overwrite getLengths() because UtoT mapping uses it.
-
-		getCurveLengths: function () {
-
-			// We use cache values if curves and cache array are same length
-
-			if ( this.cacheLengths && this.cacheLengths.length === this.curves.length ) {
-
-				return this.cacheLengths;
-
-			}
-
-			// Get length of sub-curve
-			// Push sums into cached array
-
-			var lengths = [], sums = 0;
-
-			for ( var i = 0, l = this.curves.length; i < l; i ++ ) {
-
-				sums += this.curves[ i ].getLength();
-				lengths.push( sums );
-
-			}
-
-			this.cacheLengths = lengths;
-
-			return lengths;
-
-		},
-
-		getSpacedPoints: function ( divisions ) {
-
-			if ( divisions === undefined ) divisions = 40;
-
-			var points = [];
-
-			for ( var i = 0; i <= divisions; i ++ ) {
-
-				points.push( this.getPoint( i / divisions ) );
-
-			}
-
-			if ( this.autoClose ) {
-
-				points.push( points[ 0 ] );
-
-			}
-
-			return points;
-
-		},
-
-		getPoints: function ( divisions ) {
-
-			divisions = divisions || 12;
-
-			var points = [], last;
-
-			for ( var i = 0, curves = this.curves; i < curves.length; i ++ ) {
-
-				var curve = curves[ i ];
-				var resolution = ( curve && curve.isEllipseCurve ) ? divisions * 2
-					: ( curve && ( curve.isLineCurve || curve.isLineCurve3 ) ) ? 1
-						: ( curve && curve.isSplineCurve ) ? divisions * curve.points.length
-							: divisions;
-
-				var pts = curve.getPoints( resolution );
-
-				for ( var j = 0; j < pts.length; j ++ ) {
-
-					var point = pts[ j ];
-
-					if ( last && last.equals( point ) ) continue; // ensures no consecutive points are duplicates
-
-					points.push( point );
-					last = point;
-
-				}
-
-			}
-
-			if ( this.autoClose && points.length > 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) {
-
-				points.push( points[ 0 ] );
-
-			}
-
-			return points;
-
-		},
-
-		copy: function ( source ) {
-
-			Curve.prototype.copy.call( this, source );
-
-			this.curves = [];
-
-			for ( var i = 0, l = source.curves.length; i < l; i ++ ) {
-
-				var curve = source.curves[ i ];
-
-				this.curves.push( curve.clone() );
-
-			}
-
-			this.autoClose = source.autoClose;
-
-			return this;
-
-		},
-
-		toJSON: function () {
-
-			var data = Curve.prototype.toJSON.call( this );
-
-			data.autoClose = this.autoClose;
-			data.curves = [];
-
-			for ( var i = 0, l = this.curves.length; i < l; i ++ ) {
-
-				var curve = this.curves[ i ];
-				data.curves.push( curve.toJSON() );
-
-			}
-
-			return data;
-
-		},
-
-		fromJSON: function ( json ) {
-
-			Curve.prototype.fromJSON.call( this, json );
-
-			this.autoClose = json.autoClose;
-			this.curves = [];
-
-			for ( var i = 0, l = json.curves.length; i < l; i ++ ) {
-
-				var curve = json.curves[ i ];
-				this.curves.push( new Curves[ curve.type ]().fromJSON( curve ) );
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * Creates free form 2d path using series of points, lines or curves.
-	 **/
-
-	function Path( points ) {
-
-		CurvePath.call( this );
-
-		this.type = 'Path';
-
-		this.currentPoint = new Vector2();
-
-		if ( points ) {
-
-			this.setFromPoints( points );
-
-		}
-
-	}
-
-	Path.prototype = Object.assign( Object.create( CurvePath.prototype ), {
-
-		constructor: Path,
-
-		setFromPoints: function ( points ) {
-
-			this.moveTo( points[ 0 ].x, points[ 0 ].y );
-
-			for ( var i = 1, l = points.length; i < l; i ++ ) {
-
-				this.lineTo( points[ i ].x, points[ i ].y );
-
-			}
-
-		},
-
-		moveTo: function ( x, y ) {
-
-			this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?
-
-		},
-
-		lineTo: function ( x, y ) {
-
-			var curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );
-			this.curves.push( curve );
-
-			this.currentPoint.set( x, y );
-
-		},
-
-		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {
-
-			var curve = new QuadraticBezierCurve(
-				this.currentPoint.clone(),
-				new Vector2( aCPx, aCPy ),
-				new Vector2( aX, aY )
-			);
-
-			this.curves.push( curve );
-
-			this.currentPoint.set( aX, aY );
-
-		},
-
-		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {
-
-			var curve = new CubicBezierCurve(
-				this.currentPoint.clone(),
-				new Vector2( aCP1x, aCP1y ),
-				new Vector2( aCP2x, aCP2y ),
-				new Vector2( aX, aY )
-			);
-
-			this.curves.push( curve );
-
-			this.currentPoint.set( aX, aY );
-
-		},
-
-		splineThru: function ( pts /*Array of Vector*/ ) {
-
-			var npts = [ this.currentPoint.clone() ].concat( pts );
-
-			var curve = new SplineCurve( npts );
-			this.curves.push( curve );
-
-			this.currentPoint.copy( pts[ pts.length - 1 ] );
-
-		},
-
-		arc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
-
-			var x0 = this.currentPoint.x;
-			var y0 = this.currentPoint.y;
-
-			this.absarc( aX + x0, aY + y0, aRadius,
-				aStartAngle, aEndAngle, aClockwise );
-
-		},
-
-		absarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
-
-			this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );
-
-		},
-
-		ellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
-
-			var x0 = this.currentPoint.x;
-			var y0 = this.currentPoint.y;
-
-			this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );
-
-		},
-
-		absellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
-
-			var curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );
-
-			if ( this.curves.length > 0 ) {
-
-				// if a previous curve is present, attempt to join
-				var firstPoint = curve.getPoint( 0 );
-
-				if ( ! firstPoint.equals( this.currentPoint ) ) {
-
-					this.lineTo( firstPoint.x, firstPoint.y );
-
-				}
-
-			}
-
-			this.curves.push( curve );
-
-			var lastPoint = curve.getPoint( 1 );
-			this.currentPoint.copy( lastPoint );
-
-		},
-
-		copy: function ( source ) {
-
-			CurvePath.prototype.copy.call( this, source );
-
-			this.currentPoint.copy( source.currentPoint );
-
-			return this;
-
-		},
-
-		toJSON: function () {
-
-			var data = CurvePath.prototype.toJSON.call( this );
-
-			data.currentPoint = this.currentPoint.toArray();
-
-			return data;
-
-		},
-
-		fromJSON: function ( json ) {
-
-			CurvePath.prototype.fromJSON.call( this, json );
-
-			this.currentPoint.fromArray( json.currentPoint );
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * Defines a 2d shape plane using paths.
-	 **/
-
-	// STEP 1 Create a path.
-	// STEP 2 Turn path into shape.
-	// STEP 3 ExtrudeGeometry takes in Shape/Shapes
-	// STEP 3a - Extract points from each shape, turn to vertices
-	// STEP 3b - Triangulate each shape, add faces.
-
-	function Shape( points ) {
-
-		Path.call( this, points );
-
-		this.uuid = _Math.generateUUID();
-
-		this.type = 'Shape';
-
-		this.holes = [];
-
-	}
-
-	Shape.prototype = Object.assign( Object.create( Path.prototype ), {
-
-		constructor: Shape,
-
-		getPointsHoles: function ( divisions ) {
-
-			var holesPts = [];
-
-			for ( var i = 0, l = this.holes.length; i < l; i ++ ) {
-
-				holesPts[ i ] = this.holes[ i ].getPoints( divisions );
-
-			}
-
-			return holesPts;
-
-		},
-
-		// get points of shape and holes (keypoints based on segments parameter)
-
-		extractPoints: function ( divisions ) {
-
-			return {
-
-				shape: this.getPoints( divisions ),
-				holes: this.getPointsHoles( divisions )
-
-			};
-
-		},
-
-		copy: function ( source ) {
-
-			Path.prototype.copy.call( this, source );
-
-			this.holes = [];
-
-			for ( var i = 0, l = source.holes.length; i < l; i ++ ) {
-
-				var hole = source.holes[ i ];
-
-				this.holes.push( hole.clone() );
-
-			}
-
-			return this;
-
-		},
-
-		toJSON: function () {
-
-			var data = Path.prototype.toJSON.call( this );
-
-			data.uuid = this.uuid;
-			data.holes = [];
-
-			for ( var i = 0, l = this.holes.length; i < l; i ++ ) {
-
-				var hole = this.holes[ i ];
-				data.holes.push( hole.toJSON() );
-
-			}
-
-			return data;
-
-		},
-
-		fromJSON: function ( json ) {
-
-			Path.prototype.fromJSON.call( this, json );
-
-			this.uuid = json.uuid;
-			this.holes = [];
-
-			for ( var i = 0, l = json.holes.length; i < l; i ++ ) {
-
-				var hole = json.holes[ i ];
-				this.holes.push( new Path().fromJSON( hole ) );
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Light( color, intensity ) {
-
-		Object3D.call( this );
-
-		this.type = 'Light';
-
-		this.color = new Color( color );
-		this.intensity = intensity !== undefined ? intensity : 1;
-
-		this.receiveShadow = undefined;
-
-	}
-
-	Light.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Light,
-
-		isLight: true,
-
-		copy: function ( source ) {
-
-			Object3D.prototype.copy.call( this, source );
-
-			this.color.copy( source.color );
-			this.intensity = source.intensity;
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			data.object.color = this.color.getHex();
-			data.object.intensity = this.intensity;
-
-			if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();
-
-			if ( this.distance !== undefined ) data.object.distance = this.distance;
-			if ( this.angle !== undefined ) data.object.angle = this.angle;
-			if ( this.decay !== undefined ) data.object.decay = this.decay;
-			if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;
-
-			if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function HemisphereLight( skyColor, groundColor, intensity ) {
-
-		Light.call( this, skyColor, intensity );
-
-		this.type = 'HemisphereLight';
-
-		this.castShadow = undefined;
-
-		this.position.copy( Object3D.DefaultUp );
-		this.updateMatrix();
-
-		this.groundColor = new Color( groundColor );
-
-	}
-
-	HemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: HemisphereLight,
-
-		isHemisphereLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.groundColor.copy( source.groundColor );
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function LightShadow( camera ) {
-
-		this.camera = camera;
-
-		this.bias = 0;
-		this.radius = 1;
-
-		this.mapSize = new Vector2( 512, 512 );
-
-		this.map = null;
-		this.matrix = new Matrix4();
-
-	}
-
-	Object.assign( LightShadow.prototype, {
-
-		copy: function ( source ) {
-
-			this.camera = source.camera.clone();
-
-			this.bias = source.bias;
-			this.radius = source.radius;
-
-			this.mapSize.copy( source.mapSize );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		toJSON: function () {
-
-			var object = {};
-
-			if ( this.bias !== 0 ) object.bias = this.bias;
-			if ( this.radius !== 1 ) object.radius = this.radius;
-			if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();
-
-			object.camera = this.camera.toJSON( false ).object;
-			delete object.camera.matrix;
-
-			return object;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function SpotLightShadow() {
-
-		LightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );
-
-	}
-
-	SpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {
-
-		constructor: SpotLightShadow,
-
-		isSpotLightShadow: true,
-
-		update: function ( light ) {
-
-			var camera = this.camera;
-
-			var fov = _Math.RAD2DEG * 2 * light.angle;
-			var aspect = this.mapSize.width / this.mapSize.height;
-			var far = light.distance || camera.far;
-
-			if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {
-
-				camera.fov = fov;
-				camera.aspect = aspect;
-				camera.far = far;
-				camera.updateProjectionMatrix();
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function SpotLight( color, intensity, distance, angle, penumbra, decay ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'SpotLight';
-
-		this.position.copy( Object3D.DefaultUp );
-		this.updateMatrix();
-
-		this.target = new Object3D();
-
-		Object.defineProperty( this, 'power', {
-			get: function () {
-
-				// intensity = power per solid angle.
-				// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-				return this.intensity * Math.PI;
-
-			},
-			set: function ( power ) {
-
-				// intensity = power per solid angle.
-				// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-				this.intensity = power / Math.PI;
-
-			}
-		} );
-
-		this.distance = ( distance !== undefined ) ? distance : 0;
-		this.angle = ( angle !== undefined ) ? angle : Math.PI / 3;
-		this.penumbra = ( penumbra !== undefined ) ? penumbra : 0;
-		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.
-
-		this.shadow = new SpotLightShadow();
-
-	}
-
-	SpotLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: SpotLight,
-
-		isSpotLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.distance = source.distance;
-			this.angle = source.angle;
-			this.penumbra = source.penumbra;
-			this.decay = source.decay;
-
-			this.target = source.target.clone();
-
-			this.shadow = source.shadow.clone();
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-
-	function PointLight( color, intensity, distance, decay ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'PointLight';
-
-		Object.defineProperty( this, 'power', {
-			get: function () {
-
-				// intensity = power per solid angle.
-				// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-				return this.intensity * 4 * Math.PI;
-
-			},
-			set: function ( power ) {
-
-				// intensity = power per solid angle.
-				// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-				this.intensity = power / ( 4 * Math.PI );
-
-			}
-		} );
-
-		this.distance = ( distance !== undefined ) ? distance : 0;
-		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.
-
-		this.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) );
-
-	}
-
-	PointLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: PointLight,
-
-		isPointLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.distance = source.distance;
-			this.decay = source.decay;
-
-			this.shadow = source.shadow.clone();
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author arose / http://github.com/arose
-	 */
-
-	function OrthographicCamera( left, right, top, bottom, near, far ) {
-
-		Camera.call( this );
-
-		this.type = 'OrthographicCamera';
-
-		this.zoom = 1;
-		this.view = null;
-
-		this.left = ( left !== undefined ) ? left : - 1;
-		this.right = ( right !== undefined ) ? right : 1;
-		this.top = ( top !== undefined ) ? top : 1;
-		this.bottom = ( bottom !== undefined ) ? bottom : - 1;
-
-		this.near = ( near !== undefined ) ? near : 0.1;
-		this.far = ( far !== undefined ) ? far : 2000;
-
-		this.updateProjectionMatrix();
-
-	}
-
-	OrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), {
-
-		constructor: OrthographicCamera,
-
-		isOrthographicCamera: true,
-
-		copy: function ( source, recursive ) {
-
-			Camera.prototype.copy.call( this, source, recursive );
-
-			this.left = source.left;
-			this.right = source.right;
-			this.top = source.top;
-			this.bottom = source.bottom;
-			this.near = source.near;
-			this.far = source.far;
-
-			this.zoom = source.zoom;
-			this.view = source.view === null ? null : Object.assign( {}, source.view );
-
-			return this;
-
-		},
-
-		setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {
-
-			if ( this.view === null ) {
-
-				this.view = {
-					enabled: true,
-					fullWidth: 1,
-					fullHeight: 1,
-					offsetX: 0,
-					offsetY: 0,
-					width: 1,
-					height: 1
-				};
-
-			}
-
-			this.view.enabled = true;
-			this.view.fullWidth = fullWidth;
-			this.view.fullHeight = fullHeight;
-			this.view.offsetX = x;
-			this.view.offsetY = y;
-			this.view.width = width;
-			this.view.height = height;
-
-			this.updateProjectionMatrix();
-
-		},
-
-		clearViewOffset: function () {
-
-			if ( this.view !== null ) {
-
-				this.view.enabled = false;
-
-			}
-
-			this.updateProjectionMatrix();
-
-		},
-
-		updateProjectionMatrix: function () {
-
-			var dx = ( this.right - this.left ) / ( 2 * this.zoom );
-			var dy = ( this.top - this.bottom ) / ( 2 * this.zoom );
-			var cx = ( this.right + this.left ) / 2;
-			var cy = ( this.top + this.bottom ) / 2;
-
-			var left = cx - dx;
-			var right = cx + dx;
-			var top = cy + dy;
-			var bottom = cy - dy;
-
-			if ( this.view !== null && this.view.enabled ) {
-
-				var zoomW = this.zoom / ( this.view.width / this.view.fullWidth );
-				var zoomH = this.zoom / ( this.view.height / this.view.fullHeight );
-				var scaleW = ( this.right - this.left ) / this.view.width;
-				var scaleH = ( this.top - this.bottom ) / this.view.height;
-
-				left += scaleW * ( this.view.offsetX / zoomW );
-				right = left + scaleW * ( this.view.width / zoomW );
-				top -= scaleH * ( this.view.offsetY / zoomH );
-				bottom = top - scaleH * ( this.view.height / zoomH );
-
-			}
-
-			this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );
-
-			this.projectionMatrixInverse.getInverse( this.projectionMatrix );
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			data.object.zoom = this.zoom;
-			data.object.left = this.left;
-			data.object.right = this.right;
-			data.object.top = this.top;
-			data.object.bottom = this.bottom;
-			data.object.near = this.near;
-			data.object.far = this.far;
-
-			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function DirectionalLightShadow( ) {
-
-		LightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );
-
-	}
-
-	DirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {
-
-		constructor: DirectionalLightShadow
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function DirectionalLight( color, intensity ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'DirectionalLight';
-
-		this.position.copy( Object3D.DefaultUp );
-		this.updateMatrix();
-
-		this.target = new Object3D();
-
-		this.shadow = new DirectionalLightShadow();
-
-	}
-
-	DirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: DirectionalLight,
-
-		isDirectionalLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.target = source.target.clone();
-
-			this.shadow = source.shadow.clone();
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function AmbientLight( color, intensity ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'AmbientLight';
-
-		this.castShadow = undefined;
-
-	}
-
-	AmbientLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: AmbientLight,
-
-		isAmbientLight: true
-
-	} );
-
-	/**
-	 * @author abelnation / http://github.com/abelnation
-	 */
-
-	function RectAreaLight( color, intensity, width, height ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'RectAreaLight';
-
-		this.width = ( width !== undefined ) ? width : 10;
-		this.height = ( height !== undefined ) ? height : 10;
-
-	}
-
-	RectAreaLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: RectAreaLight,
-
-		isRectAreaLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.width = source.width;
-			this.height = source.height;
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Light.prototype.toJSON.call( this, meta );
-
-			data.object.width = this.width;
-			data.object.height = this.height;
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function MaterialLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-		this.textures = {};
-
-	}
-
-	Object.assign( MaterialLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var loader = new FileLoader( scope.manager );
-			loader.setPath( scope.path );
-			loader.load( url, function ( text ) {
-
-				onLoad( scope.parse( JSON.parse( text ) ) );
-
-			}, onProgress, onError );
-
-		},
-
-		parse: function ( json ) {
-
-			var textures = this.textures;
-
-			function getTexture( name ) {
-
-				if ( textures[ name ] === undefined ) {
-
-					console.warn( 'THREE.MaterialLoader: Undefined texture', name );
-
-				}
-
-				return textures[ name ];
-
-			}
-
-			var material = new Materials[ json.type ]();
-
-			if ( json.uuid !== undefined ) material.uuid = json.uuid;
-			if ( json.name !== undefined ) material.name = json.name;
-			if ( json.color !== undefined ) material.color.setHex( json.color );
-			if ( json.roughness !== undefined ) material.roughness = json.roughness;
-			if ( json.metalness !== undefined ) material.metalness = json.metalness;
-			if ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );
-			if ( json.specular !== undefined ) material.specular.setHex( json.specular );
-			if ( json.shininess !== undefined ) material.shininess = json.shininess;
-			if ( json.clearCoat !== undefined ) material.clearCoat = json.clearCoat;
-			if ( json.clearCoatRoughness !== undefined ) material.clearCoatRoughness = json.clearCoatRoughness;
-			if ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;
-			if ( json.fog !== undefined ) material.fog = json.fog;
-			if ( json.flatShading !== undefined ) material.flatShading = json.flatShading;
-			if ( json.blending !== undefined ) material.blending = json.blending;
-			if ( json.combine !== undefined ) material.combine = json.combine;
-			if ( json.side !== undefined ) material.side = json.side;
-			if ( json.opacity !== undefined ) material.opacity = json.opacity;
-			if ( json.transparent !== undefined ) material.transparent = json.transparent;
-			if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;
-			if ( json.depthTest !== undefined ) material.depthTest = json.depthTest;
-			if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;
-			if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;
-			if ( json.wireframe !== undefined ) material.wireframe = json.wireframe;
-			if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;
-			if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;
-			if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;
-
-			if ( json.rotation !== undefined ) material.rotation = json.rotation;
-
-			if ( json.linewidth !== 1 ) material.linewidth = json.linewidth;
-			if ( json.dashSize !== undefined ) material.dashSize = json.dashSize;
-			if ( json.gapSize !== undefined ) material.gapSize = json.gapSize;
-			if ( json.scale !== undefined ) material.scale = json.scale;
-
-			if ( json.polygonOffset !== undefined ) material.polygonOffset = json.polygonOffset;
-			if ( json.polygonOffsetFactor !== undefined ) material.polygonOffsetFactor = json.polygonOffsetFactor;
-			if ( json.polygonOffsetUnits !== undefined ) material.polygonOffsetUnits = json.polygonOffsetUnits;
-
-			if ( json.skinning !== undefined ) material.skinning = json.skinning;
-			if ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets;
-			if ( json.dithering !== undefined ) material.dithering = json.dithering;
-
-			if ( json.visible !== undefined ) material.visible = json.visible;
-			if ( json.userData !== undefined ) material.userData = json.userData;
-
-			// Shader Material
-
-			if ( json.uniforms !== undefined ) {
-
-				for ( var name in json.uniforms ) {
-
-					var uniform = json.uniforms[ name ];
-
-					material.uniforms[ name ] = {};
-
-					switch ( uniform.type ) {
-
-						case 't':
-							material.uniforms[ name ].value = getTexture( uniform.value );
-							break;
-
-						case 'c':
-							material.uniforms[ name ].value = new Color().setHex( uniform.value );
-							break;
-
-						case 'v2':
-							material.uniforms[ name ].value = new Vector2().fromArray( uniform.value );
-							break;
-
-						case 'v3':
-							material.uniforms[ name ].value = new Vector3().fromArray( uniform.value );
-							break;
-
-						case 'v4':
-							material.uniforms[ name ].value = new Vector4().fromArray( uniform.value );
-							break;
-
-						case 'm3':
-							material.uniforms[ name ].value = new Matrix3().fromArray( uniform.value );
-
-						case 'm4':
-							material.uniforms[ name ].value = new Matrix4().fromArray( uniform.value );
-							break;
-
-						default:
-							material.uniforms[ name ].value = uniform.value;
-
-					}
-
-				}
-
-			}
-
-			if ( json.defines !== undefined ) material.defines = json.defines;
-			if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;
-			if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;
-
-			if ( json.extensions !== undefined ) {
-
-				for ( var key in json.extensions ) {
-
-					material.extensions[ key ] = json.extensions[ key ];
-
-				}
-
-			}
-
-			// Deprecated
-
-			if ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading
-
-			// for PointsMaterial
-
-			if ( json.size !== undefined ) material.size = json.size;
-			if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;
-
-			// maps
-
-			if ( json.map !== undefined ) material.map = getTexture( json.map );
-			if ( json.matcap !== undefined ) material.matcap = getTexture( json.matcap );
-
-			if ( json.alphaMap !== undefined ) {
-
-				material.alphaMap = getTexture( json.alphaMap );
-				material.transparent = true;
-
-			}
-
-			if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );
-			if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;
-
-			if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );
-			if ( json.normalMapType !== undefined ) material.normalMapType = json.normalMapType;
-			if ( json.normalScale !== undefined ) {
-
-				var normalScale = json.normalScale;
-
-				if ( Array.isArray( normalScale ) === false ) {
-
-					// Blender exporter used to export a scalar. See #7459
-
-					normalScale = [ normalScale, normalScale ];
-
-				}
-
-				material.normalScale = new Vector2().fromArray( normalScale );
-
-			}
-
-			if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );
-			if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;
-			if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;
-
-			if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );
-			if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );
-
-			if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );
-			if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;
-
-			if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );
-
-			if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );
-			if ( json.envMapIntensity !== undefined ) material.envMapIntensity = json.envMapIntensity;
-
-			if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;
-
-			if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );
-			if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;
-
-			if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );
-			if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;
-
-			if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );
-
-			return material;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		},
-
-		setTextures: function ( value ) {
-
-			this.textures = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author Don McCurdy / https://www.donmccurdy.com
-	 */
-
-	var LoaderUtils = {
-
-		decodeText: function ( array ) {
-
-			if ( typeof TextDecoder !== 'undefined' ) {
-
-				return new TextDecoder().decode( array );
-
-			}
-
-			// Avoid the String.fromCharCode.apply(null, array) shortcut, which
-			// throws a "maximum call stack size exceeded" error for large arrays.
-
-			var s = '';
-
-			for ( var i = 0, il = array.length; i < il; i ++ ) {
-
-				// Implicitly assumes little-endian.
-				s += String.fromCharCode( array[ i ] );
-
-			}
-
-			try {
-
-				// merges multi-byte utf-8 characters.
-
-				return decodeURIComponent( escape( s ) );
-
-			} catch ( e ) { // see #16358
-
-				return s;
-
-			}
-
-		},
-
-		extractUrlBase: function ( url ) {
-
-			var index = url.lastIndexOf( '/' );
-
-			if ( index === - 1 ) return './';
-
-			return url.substr( 0, index + 1 );
-
-		}
-
-	};
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InstancedBufferGeometry() {
-
-		BufferGeometry.call( this );
-
-		this.type = 'InstancedBufferGeometry';
-		this.maxInstancedCount = undefined;
-
-	}
-
-	InstancedBufferGeometry.prototype = Object.assign( Object.create( BufferGeometry.prototype ), {
-
-		constructor: InstancedBufferGeometry,
-
-		isInstancedBufferGeometry: true,
-
-		copy: function ( source ) {
-
-			BufferGeometry.prototype.copy.call( this, source );
-
-			this.maxInstancedCount = source.maxInstancedCount;
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		toJSON: function () {
-
-			var data = BufferGeometry.prototype.toJSON.call( this );
-
-			data.maxInstancedCount = this.maxInstancedCount;
-
-			data.isInstancedBufferGeometry = true;
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InstancedBufferAttribute( array, itemSize, normalized, meshPerAttribute ) {
-
-		if ( typeof ( normalized ) === 'number' ) {
-
-			meshPerAttribute = normalized;
-
-			normalized = false;
-
-			console.error( 'THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.' );
-
-		}
-
-		BufferAttribute.call( this, array, itemSize, normalized );
-
-		this.meshPerAttribute = meshPerAttribute || 1;
-
-	}
-
-	InstancedBufferAttribute.prototype = Object.assign( Object.create( BufferAttribute.prototype ), {
-
-		constructor: InstancedBufferAttribute,
-
-		isInstancedBufferAttribute: true,
-
-		copy: function ( source ) {
-
-			BufferAttribute.prototype.copy.call( this, source );
-
-			this.meshPerAttribute = source.meshPerAttribute;
-
-			return this;
-
-		},
-
-		toJSON: function ()	{
-
-			var data = BufferAttribute.prototype.toJSON.call( this );
-
-			data.meshPerAttribute = this.meshPerAttribute;
-
-			data.isInstancedBufferAttribute = true;
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function BufferGeometryLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( BufferGeometryLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var loader = new FileLoader( scope.manager );
-			loader.setPath( scope.path );
-			loader.load( url, function ( text ) {
-
-				onLoad( scope.parse( JSON.parse( text ) ) );
-
-			}, onProgress, onError );
-
-		},
-
-		parse: function ( json ) {
-
-			var geometry = json.isInstancedBufferGeometry ? new InstancedBufferGeometry() : new BufferGeometry();
-
-			var index = json.data.index;
-
-			if ( index !== undefined ) {
-
-				var typedArray = new TYPED_ARRAYS[ index.type ]( index.array );
-				geometry.setIndex( new BufferAttribute( typedArray, 1 ) );
-
-			}
-
-			var attributes = json.data.attributes;
-
-			for ( var key in attributes ) {
-
-				var attribute = attributes[ key ];
-				var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );
-				var bufferAttributeConstr = attribute.isInstancedBufferAttribute ? InstancedBufferAttribute : BufferAttribute;
-				var bufferAttribute = new bufferAttributeConstr( typedArray, attribute.itemSize, attribute.normalized );
-				if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name;
-				geometry.addAttribute( key, bufferAttribute );
-
-			}
-
-			var morphAttributes = json.data.morphAttributes;
-
-			if ( morphAttributes ) {
-
-				for ( var key in morphAttributes ) {
-
-					var attributeArray = morphAttributes[ key ];
-
-					var array = [];
-
-					for ( var i = 0, il = attributeArray.length; i < il; i ++ ) {
-
-						var attribute = attributeArray[ i ];
-						var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );
-
-						var bufferAttribute = new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized );
-						if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name;
-						array.push( bufferAttribute );
-
-					}
-
-					geometry.morphAttributes[ key ] = array;
-
-				}
-
-			}
-
-			var groups = json.data.groups || json.data.drawcalls || json.data.offsets;
-
-			if ( groups !== undefined ) {
-
-				for ( var i = 0, n = groups.length; i !== n; ++ i ) {
-
-					var group = groups[ i ];
-
-					geometry.addGroup( group.start, group.count, group.materialIndex );
-
-				}
-
-			}
-
-			var boundingSphere = json.data.boundingSphere;
-
-			if ( boundingSphere !== undefined ) {
-
-				var center = new Vector3();
-
-				if ( boundingSphere.center !== undefined ) {
-
-					center.fromArray( boundingSphere.center );
-
-				}
-
-				geometry.boundingSphere = new Sphere( center, boundingSphere.radius );
-
-			}
-
-			if ( json.name ) geometry.name = json.name;
-			if ( json.userData ) geometry.userData = json.userData;
-
-			return geometry;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	var TYPED_ARRAYS = {
-		Int8Array: Int8Array,
-		Uint8Array: Uint8Array,
-		// Workaround for IE11 pre KB2929437. See #11440
-		Uint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array,
-		Int16Array: Int16Array,
-		Uint16Array: Uint16Array,
-		Int32Array: Int32Array,
-		Uint32Array: Uint32Array,
-		Float32Array: Float32Array,
-		Float64Array: Float64Array
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function ObjectLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-		this.resourcePath = '';
-
-	}
-
-	Object.assign( ObjectLoader.prototype, {
-
-		crossOrigin: 'anonymous',
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var path = ( this.path === undefined ) ? LoaderUtils.extractUrlBase( url ) : this.path;
-			this.resourcePath = this.resourcePath || path;
-
-			var loader = new FileLoader( scope.manager );
-			loader.setPath( this.path );
-			loader.load( url, function ( text ) {
-
-				var json = null;
-
-				try {
-
-					json = JSON.parse( text );
-
-				} catch ( error ) {
-
-					if ( onError !== undefined ) onError( error );
-
-					console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message );
-
-					return;
-
-				}
-
-				var metadata = json.metadata;
-
-				if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {
-
-					console.error( 'THREE.ObjectLoader: Can\'t load ' + url );
-					return;
-
-				}
-
-				scope.parse( json, onLoad );
-
-			}, onProgress, onError );
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		},
-
-		setResourcePath: function ( value ) {
-
-			this.resourcePath = value;
-			return this;
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-			return this;
-
-		},
-
-		parse: function ( json, onLoad ) {
-
-			var shapes = this.parseShape( json.shapes );
-			var geometries = this.parseGeometries( json.geometries, shapes );
-
-			var images = this.parseImages( json.images, function () {
-
-				if ( onLoad !== undefined ) onLoad( object );
-
-			} );
-
-			var textures = this.parseTextures( json.textures, images );
-			var materials = this.parseMaterials( json.materials, textures );
-
-			var object = this.parseObject( json.object, geometries, materials );
-
-			if ( json.animations ) {
-
-				object.animations = this.parseAnimations( json.animations );
-
-			}
-
-			if ( json.images === undefined || json.images.length === 0 ) {
-
-				if ( onLoad !== undefined ) onLoad( object );
-
-			}
-
-			return object;
-
-		},
-
-		parseShape: function ( json ) {
-
-			var shapes = {};
-
-			if ( json !== undefined ) {
-
-				for ( var i = 0, l = json.length; i < l; i ++ ) {
-
-					var shape = new Shape().fromJSON( json[ i ] );
-
-					shapes[ shape.uuid ] = shape;
-
-				}
-
-			}
-
-			return shapes;
-
-		},
-
-		parseGeometries: function ( json, shapes ) {
-
-			var geometries = {};
-
-			if ( json !== undefined ) {
-
-				var bufferGeometryLoader = new BufferGeometryLoader();
-
-				for ( var i = 0, l = json.length; i < l; i ++ ) {
-
-					var geometry;
-					var data = json[ i ];
-
-					switch ( data.type ) {
-
-						case 'PlaneGeometry':
-						case 'PlaneBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.width,
-								data.height,
-								data.widthSegments,
-								data.heightSegments
-							);
-
-							break;
-
-						case 'BoxGeometry':
-						case 'BoxBufferGeometry':
-						case 'CubeGeometry': // backwards compatible
-
-							geometry = new Geometries[ data.type ](
-								data.width,
-								data.height,
-								data.depth,
-								data.widthSegments,
-								data.heightSegments,
-								data.depthSegments
-							);
-
-							break;
-
-						case 'CircleGeometry':
-						case 'CircleBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.segments,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'CylinderGeometry':
-						case 'CylinderBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radiusTop,
-								data.radiusBottom,
-								data.height,
-								data.radialSegments,
-								data.heightSegments,
-								data.openEnded,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'ConeGeometry':
-						case 'ConeBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.height,
-								data.radialSegments,
-								data.heightSegments,
-								data.openEnded,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'SphereGeometry':
-						case 'SphereBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.widthSegments,
-								data.heightSegments,
-								data.phiStart,
-								data.phiLength,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'DodecahedronGeometry':
-						case 'DodecahedronBufferGeometry':
-						case 'IcosahedronGeometry':
-						case 'IcosahedronBufferGeometry':
-						case 'OctahedronGeometry':
-						case 'OctahedronBufferGeometry':
-						case 'TetrahedronGeometry':
-						case 'TetrahedronBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.detail
-							);
-
-							break;
-
-						case 'RingGeometry':
-						case 'RingBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.innerRadius,
-								data.outerRadius,
-								data.thetaSegments,
-								data.phiSegments,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'TorusGeometry':
-						case 'TorusBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.tube,
-								data.radialSegments,
-								data.tubularSegments,
-								data.arc
-							);
-
-							break;
-
-						case 'TorusKnotGeometry':
-						case 'TorusKnotBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.tube,
-								data.tubularSegments,
-								data.radialSegments,
-								data.p,
-								data.q
-							);
-
-							break;
-
-						case 'TubeGeometry':
-						case 'TubeBufferGeometry':
-
-							// This only works for built-in curves (e.g. CatmullRomCurve3).
-							// User defined curves or instances of CurvePath will not be deserialized.
-							geometry = new Geometries[ data.type ](
-								new Curves[ data.path.type ]().fromJSON( data.path ),
-								data.tubularSegments,
-								data.radius,
-								data.radialSegments,
-								data.closed
-							);
-
-							break;
-
-						case 'LatheGeometry':
-						case 'LatheBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.points,
-								data.segments,
-								data.phiStart,
-								data.phiLength
-							);
-
-							break;
-
-						case 'PolyhedronGeometry':
-						case 'PolyhedronBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.vertices,
-								data.indices,
-								data.radius,
-								data.details
-							);
-
-							break;
-
-						case 'ShapeGeometry':
-						case 'ShapeBufferGeometry':
-
-							var geometryShapes = [];
-
-							for ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {
-
-								var shape = shapes[ data.shapes[ j ] ];
-
-								geometryShapes.push( shape );
-
-							}
-
-							geometry = new Geometries[ data.type ](
-								geometryShapes,
-								data.curveSegments
-							);
-
-							break;
-
-
-						case 'ExtrudeGeometry':
-						case 'ExtrudeBufferGeometry':
-
-							var geometryShapes = [];
-
-							for ( var j = 0, jl = data.shapes.length; j < jl; j ++ ) {
-
-								var shape = shapes[ data.shapes[ j ] ];
-
-								geometryShapes.push( shape );
-
-							}
-
-							var extrudePath = data.options.extrudePath;
-
-							if ( extrudePath !== undefined ) {
-
-								data.options.extrudePath = new Curves[ extrudePath.type ]().fromJSON( extrudePath );
-
-							}
-
-							geometry = new Geometries[ data.type ](
-								geometryShapes,
-								data.options
-							);
-
-							break;
-
-						case 'BufferGeometry':
-						case 'InstancedBufferGeometry':
-
-							geometry = bufferGeometryLoader.parse( data );
-
-							break;
-
-						case 'Geometry':
-
-							if ( 'THREE' in window && 'LegacyJSONLoader' in THREE ) {
-
-								var geometryLoader = new THREE.LegacyJSONLoader();
-								geometry = geometryLoader.parse( data, this.resourcePath ).geometry;
-
-
-							} else {
-
-								console.error( 'THREE.ObjectLoader: You have to import LegacyJSONLoader in order load geometry data of type "Geometry".' );
-
-							}
-
-							break;
-
-						default:
-
-							console.warn( 'THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"' );
-
-							continue;
-
-					}
-
-					geometry.uuid = data.uuid;
-
-					if ( data.name !== undefined ) geometry.name = data.name;
-					if ( geometry.isBufferGeometry === true && data.userData !== undefined ) geometry.userData = data.userData;
-
-					geometries[ data.uuid ] = geometry;
-
-				}
-
-			}
-
-			return geometries;
-
-		},
-
-		parseMaterials: function ( json, textures ) {
-
-			var cache = {}; // MultiMaterial
-			var materials = {};
-
-			if ( json !== undefined ) {
-
-				var loader = new MaterialLoader();
-				loader.setTextures( textures );
-
-				for ( var i = 0, l = json.length; i < l; i ++ ) {
-
-					var data = json[ i ];
-
-					if ( data.type === 'MultiMaterial' ) {
-
-						// Deprecated
-
-						var array = [];
-
-						for ( var j = 0; j < data.materials.length; j ++ ) {
-
-							var material = data.materials[ j ];
-
-							if ( cache[ material.uuid ] === undefined ) {
-
-								cache[ material.uuid ] = loader.parse( material );
-
-							}
-
-							array.push( cache[ material.uuid ] );
-
-						}
-
-						materials[ data.uuid ] = array;
-
-					} else {
-
-						if ( cache[ data.uuid ] === undefined ) {
-
-							cache[ data.uuid ] = loader.parse( data );
-
-						}
-
-						materials[ data.uuid ] = cache[ data.uuid ];
-
-					}
-
-				}
-
-			}
-
-			return materials;
-
-		},
-
-		parseAnimations: function ( json ) {
-
-			var animations = [];
-
-			for ( var i = 0; i < json.length; i ++ ) {
-
-				var data = json[ i ];
-
-				var clip = AnimationClip.parse( data );
-
-				if ( data.uuid !== undefined ) clip.uuid = data.uuid;
-
-				animations.push( clip );
-
-			}
-
-			return animations;
-
-		},
-
-		parseImages: function ( json, onLoad ) {
-
-			var scope = this;
-			var images = {};
-
-			function loadImage( url ) {
-
-				scope.manager.itemStart( url );
-
-				return loader.load( url, function () {
-
-					scope.manager.itemEnd( url );
-
-				}, undefined, function () {
-
-					scope.manager.itemError( url );
-					scope.manager.itemEnd( url );
-
-				} );
-
-			}
-
-			if ( json !== undefined && json.length > 0 ) {
-
-				var manager = new LoadingManager( onLoad );
-
-				var loader = new ImageLoader( manager );
-				loader.setCrossOrigin( this.crossOrigin );
-
-				for ( var i = 0, il = json.length; i < il; i ++ ) {
-
-					var image = json[ i ];
-					var url = image.url;
-
-					if ( Array.isArray( url ) ) {
-
-						// load array of images e.g CubeTexture
-
-						images[ image.uuid ] = [];
-
-						for ( var j = 0, jl = url.length; j < jl; j ++ ) {
-
-							var currentUrl = url[ j ];
-
-							var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( currentUrl ) ? currentUrl : scope.resourcePath + currentUrl;
-
-							images[ image.uuid ].push( loadImage( path ) );
-
-						}
-
-					} else {
-
-						// load single image
-
-						var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( image.url ) ? image.url : scope.resourcePath + image.url;
-
-						images[ image.uuid ] = loadImage( path );
-
-					}
-
-				}
-
-			}
-
-			return images;
-
-		},
-
-		parseTextures: function ( json, images ) {
-
-			function parseConstant( value, type ) {
-
-				if ( typeof value === 'number' ) return value;
-
-				console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );
-
-				return type[ value ];
-
-			}
-
-			var textures = {};
-
-			if ( json !== undefined ) {
-
-				for ( var i = 0, l = json.length; i < l; i ++ ) {
-
-					var data = json[ i ];
-
-					if ( data.image === undefined ) {
-
-						console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid );
-
-					}
-
-					if ( images[ data.image ] === undefined ) {
-
-						console.warn( 'THREE.ObjectLoader: Undefined image', data.image );
-
-					}
-
-					var texture;
-
-					if ( Array.isArray( images[ data.image ] ) ) {
-
-						texture = new CubeTexture( images[ data.image ] );
-
-					} else {
-
-						texture = new Texture( images[ data.image ] );
-
-					}
-
-					texture.needsUpdate = true;
-
-					texture.uuid = data.uuid;
-
-					if ( data.name !== undefined ) texture.name = data.name;
-
-					if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );
-
-					if ( data.offset !== undefined ) texture.offset.fromArray( data.offset );
-					if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );
-					if ( data.center !== undefined ) texture.center.fromArray( data.center );
-					if ( data.rotation !== undefined ) texture.rotation = data.rotation;
-
-					if ( data.wrap !== undefined ) {
-
-						texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );
-						texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );
-
-					}
-
-					if ( data.format !== undefined ) texture.format = data.format;
-					if ( data.type !== undefined ) texture.type = data.type;
-					if ( data.encoding !== undefined ) texture.encoding = data.encoding;
-
-					if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );
-					if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );
-					if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;
-
-					if ( data.flipY !== undefined ) texture.flipY = data.flipY;
-
-					if ( data.premultiplyAlpha !== undefined ) texture.premultiplyAlpha = data.premultiplyAlpha;
-					if ( data.unpackAlignment !== undefined ) texture.unpackAlignment = data.unpackAlignment;
-
-					textures[ data.uuid ] = texture;
-
-				}
-
-			}
-
-			return textures;
-
-		},
-
-		parseObject: function ( data, geometries, materials ) {
-
-			var object;
-
-			function getGeometry( name ) {
-
-				if ( geometries[ name ] === undefined ) {
-
-					console.warn( 'THREE.ObjectLoader: Undefined geometry', name );
-
-				}
-
-				return geometries[ name ];
-
-			}
-
-			function getMaterial( name ) {
-
-				if ( name === undefined ) return undefined;
-
-				if ( Array.isArray( name ) ) {
-
-					var array = [];
-
-					for ( var i = 0, l = name.length; i < l; i ++ ) {
-
-						var uuid = name[ i ];
-
-						if ( materials[ uuid ] === undefined ) {
-
-							console.warn( 'THREE.ObjectLoader: Undefined material', uuid );
-
-						}
-
-						array.push( materials[ uuid ] );
-
-					}
-
-					return array;
-
-				}
-
-				if ( materials[ name ] === undefined ) {
-
-					console.warn( 'THREE.ObjectLoader: Undefined material', name );
-
-				}
-
-				return materials[ name ];
-
-			}
-
-			switch ( data.type ) {
-
-				case 'Scene':
-
-					object = new Scene();
-
-					if ( data.background !== undefined ) {
-
-						if ( Number.isInteger( data.background ) ) {
-
-							object.background = new Color( data.background );
-
-						}
-
-					}
-
-					if ( data.fog !== undefined ) {
-
-						if ( data.fog.type === 'Fog' ) {
-
-							object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );
-
-						} else if ( data.fog.type === 'FogExp2' ) {
-
-							object.fog = new FogExp2( data.fog.color, data.fog.density );
-
-						}
-
-					}
-
-					break;
-
-				case 'PerspectiveCamera':
-
-					object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );
-
-					if ( data.focus !== undefined ) object.focus = data.focus;
-					if ( data.zoom !== undefined ) object.zoom = data.zoom;
-					if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;
-					if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;
-					if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );
-
-					break;
-
-				case 'OrthographicCamera':
-
-					object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );
-
-					if ( data.zoom !== undefined ) object.zoom = data.zoom;
-					if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );
-
-					break;
-
-				case 'AmbientLight':
-
-					object = new AmbientLight( data.color, data.intensity );
-
-					break;
-
-				case 'DirectionalLight':
-
-					object = new DirectionalLight( data.color, data.intensity );
-
-					break;
-
-				case 'PointLight':
-
-					object = new PointLight( data.color, data.intensity, data.distance, data.decay );
-
-					break;
-
-				case 'RectAreaLight':
-
-					object = new RectAreaLight( data.color, data.intensity, data.width, data.height );
-
-					break;
-
-				case 'SpotLight':
-
-					object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );
-
-					break;
-
-				case 'HemisphereLight':
-
-					object = new HemisphereLight( data.color, data.groundColor, data.intensity );
-
-					break;
-
-				case 'SkinnedMesh':
-
-					console.warn( 'THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.' );
-
-				case 'Mesh':
-
-					var geometry = getGeometry( data.geometry );
-					var material = getMaterial( data.material );
-
-					if ( geometry.bones && geometry.bones.length > 0 ) {
-
-						object = new SkinnedMesh( geometry, material );
-
-					} else {
-
-						object = new Mesh( geometry, material );
-
-					}
-
-					if ( data.drawMode !== undefined ) object.setDrawMode( data.drawMode );
-
-					break;
-
-				case 'LOD':
-
-					object = new LOD();
-
-					break;
-
-				case 'Line':
-
-					object = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );
-
-					break;
-
-				case 'LineLoop':
-
-					object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );
-
-					break;
-
-				case 'LineSegments':
-
-					object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );
-
-					break;
-
-				case 'PointCloud':
-				case 'Points':
-
-					object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );
-
-					break;
-
-				case 'Sprite':
-
-					object = new Sprite( getMaterial( data.material ) );
-
-					break;
-
-				case 'Group':
-
-					object = new Group();
-
-					break;
-
-				default:
-
-					object = new Object3D();
-
-			}
-
-			object.uuid = data.uuid;
-
-			if ( data.name !== undefined ) object.name = data.name;
-
-			if ( data.matrix !== undefined ) {
-
-				object.matrix.fromArray( data.matrix );
-
-				if ( data.matrixAutoUpdate !== undefined ) object.matrixAutoUpdate = data.matrixAutoUpdate;
-				if ( object.matrixAutoUpdate ) object.matrix.decompose( object.position, object.quaternion, object.scale );
-
-			} else {
-
-				if ( data.position !== undefined ) object.position.fromArray( data.position );
-				if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );
-				if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );
-				if ( data.scale !== undefined ) object.scale.fromArray( data.scale );
-
-			}
-
-			if ( data.castShadow !== undefined ) object.castShadow = data.castShadow;
-			if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;
-
-			if ( data.shadow ) {
-
-				if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;
-				if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;
-				if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );
-				if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );
-
-			}
-
-			if ( data.visible !== undefined ) object.visible = data.visible;
-			if ( data.frustumCulled !== undefined ) object.frustumCulled = data.frustumCulled;
-			if ( data.renderOrder !== undefined ) object.renderOrder = data.renderOrder;
-			if ( data.userData !== undefined ) object.userData = data.userData;
-			if ( data.layers !== undefined ) object.layers.mask = data.layers;
-
-			if ( data.children !== undefined ) {
-
-				var children = data.children;
-
-				for ( var i = 0; i < children.length; i ++ ) {
-
-					object.add( this.parseObject( children[ i ], geometries, materials ) );
-
-				}
-
-			}
-
-			if ( data.type === 'LOD' ) {
-
-				var levels = data.levels;
-
-				for ( var l = 0; l < levels.length; l ++ ) {
-
-					var level = levels[ l ];
-					var child = object.getObjectByProperty( 'uuid', level.object );
-
-					if ( child !== undefined ) {
-
-						object.addLevel( child, level.distance );
-
-					}
-
-				}
-
-			}
-
-			return object;
-
-		}
-
-	} );
-
-	var TEXTURE_MAPPING = {
-		UVMapping: UVMapping,
-		CubeReflectionMapping: CubeReflectionMapping,
-		CubeRefractionMapping: CubeRefractionMapping,
-		EquirectangularReflectionMapping: EquirectangularReflectionMapping,
-		EquirectangularRefractionMapping: EquirectangularRefractionMapping,
-		SphericalReflectionMapping: SphericalReflectionMapping,
-		CubeUVReflectionMapping: CubeUVReflectionMapping,
-		CubeUVRefractionMapping: CubeUVRefractionMapping
-	};
-
-	var TEXTURE_WRAPPING = {
-		RepeatWrapping: RepeatWrapping,
-		ClampToEdgeWrapping: ClampToEdgeWrapping,
-		MirroredRepeatWrapping: MirroredRepeatWrapping
-	};
-
-	var TEXTURE_FILTER = {
-		NearestFilter: NearestFilter,
-		NearestMipMapNearestFilter: NearestMipMapNearestFilter,
-		NearestMipMapLinearFilter: NearestMipMapLinearFilter,
-		LinearFilter: LinearFilter,
-		LinearMipMapNearestFilter: LinearMipMapNearestFilter,
-		LinearMipMapLinearFilter: LinearMipMapLinearFilter
-	};
-
-	/**
-	 * @author thespite / http://clicktorelease.com/
-	 */
-
-
-	function ImageBitmapLoader( manager ) {
-
-		if ( typeof createImageBitmap === 'undefined' ) {
-
-			console.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' );
-
-		}
-
-		if ( typeof fetch === 'undefined' ) {
-
-			console.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' );
-
-		}
-
-		this.manager = manager !== undefined ? manager : DefaultLoadingManager;
-		this.options = undefined;
-
-	}
-
-	ImageBitmapLoader.prototype = {
-
-		constructor: ImageBitmapLoader,
-
-		setOptions: function setOptions( options ) {
-
-			this.options = options;
-
-			return this;
-
-		},
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			if ( url === undefined ) url = '';
-
-			if ( this.path !== undefined ) url = this.path + url;
-
-			url = this.manager.resolveURL( url );
-
-			var scope = this;
-
-			var cached = Cache.get( url );
-
-			if ( cached !== undefined ) {
-
-				scope.manager.itemStart( url );
-
-				setTimeout( function () {
-
-					if ( onLoad ) onLoad( cached );
-
-					scope.manager.itemEnd( url );
-
-				}, 0 );
-
-				return cached;
-
-			}
-
-			fetch( url ).then( function ( res ) {
-
-				return res.blob();
-
-			} ).then( function ( blob ) {
-
-				if ( scope.options === undefined ) {
-
-					// Workaround for FireFox. It causes an error if you pass options.
-					return createImageBitmap( blob );
-
-				} else {
-
-					return createImageBitmap( blob, scope.options );
-
-				}
-
-			} ).then( function ( imageBitmap ) {
-
-				Cache.add( url, imageBitmap );
-
-				if ( onLoad ) onLoad( imageBitmap );
-
-				scope.manager.itemEnd( url );
-
-			} ).catch( function ( e ) {
-
-				if ( onError ) onError( e );
-
-				scope.manager.itemError( url );
-				scope.manager.itemEnd( url );
-
-			} );
-
-			scope.manager.itemStart( url );
-
-		},
-
-		setCrossOrigin: function ( /* value */ ) {
-
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	};
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * minimal class for proxing functions to Path. Replaces old "extractSubpaths()"
-	 **/
-
-	function ShapePath() {
-
-		this.type = 'ShapePath';
-
-		this.color = new Color();
-
-		this.subPaths = [];
-		this.currentPath = null;
-
-	}
-
-	Object.assign( ShapePath.prototype, {
-
-		moveTo: function ( x, y ) {
-
-			this.currentPath = new Path();
-			this.subPaths.push( this.currentPath );
-			this.currentPath.moveTo( x, y );
-
-		},
-
-		lineTo: function ( x, y ) {
-
-			this.currentPath.lineTo( x, y );
-
-		},
-
-		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {
-
-			this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );
-
-		},
-
-		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {
-
-			this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );
-
-		},
-
-		splineThru: function ( pts ) {
-
-			this.currentPath.splineThru( pts );
-
-		},
-
-		toShapes: function ( isCCW, noHoles ) {
-
-			function toShapesNoHoles( inSubpaths ) {
-
-				var shapes = [];
-
-				for ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {
-
-					var tmpPath = inSubpaths[ i ];
-
-					var tmpShape = new Shape();
-					tmpShape.curves = tmpPath.curves;
-
-					shapes.push( tmpShape );
-
-				}
-
-				return shapes;
-
-			}
-
-			function isPointInsidePolygon( inPt, inPolygon ) {
-
-				var polyLen = inPolygon.length;
-
-				// inPt on polygon contour => immediate success    or
-				// toggling of inside/outside at every single! intersection point of an edge
-				//  with the horizontal line through inPt, left of inPt
-				//  not counting lowerY endpoints of edges and whole edges on that line
-				var inside = false;
-				for ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {
-
-					var edgeLowPt = inPolygon[ p ];
-					var edgeHighPt = inPolygon[ q ];
-
-					var edgeDx = edgeHighPt.x - edgeLowPt.x;
-					var edgeDy = edgeHighPt.y - edgeLowPt.y;
-
-					if ( Math.abs( edgeDy ) > Number.EPSILON ) {
-
-						// not parallel
-						if ( edgeDy < 0 ) {
-
-							edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;
-							edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;
-
-						}
-						if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) 		continue;
-
-						if ( inPt.y === edgeLowPt.y ) {
-
-							if ( inPt.x === edgeLowPt.x )		return	true;		// inPt is on contour ?
-							// continue;				// no intersection or edgeLowPt => doesn't count !!!
-
-						} else {
-
-							var perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );
-							if ( perpEdge === 0 )				return	true;		// inPt is on contour ?
-							if ( perpEdge < 0 ) 				continue;
-							inside = ! inside;		// true intersection left of inPt
-
-						}
-
-					} else {
-
-						// parallel or collinear
-						if ( inPt.y !== edgeLowPt.y ) 		continue;			// parallel
-						// edge lies on the same horizontal line as inPt
-						if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||
-							 ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )		return	true;	// inPt: Point on contour !
-						// continue;
-
-					}
-
-				}
-
-				return	inside;
-
-			}
-
-			var isClockWise = ShapeUtils.isClockWise;
-
-			var subPaths = this.subPaths;
-			if ( subPaths.length === 0 ) return [];
-
-			if ( noHoles === true )	return	toShapesNoHoles( subPaths );
-
-
-			var solid, tmpPath, tmpShape, shapes = [];
-
-			if ( subPaths.length === 1 ) {
-
-				tmpPath = subPaths[ 0 ];
-				tmpShape = new Shape();
-				tmpShape.curves = tmpPath.curves;
-				shapes.push( tmpShape );
-				return shapes;
-
-			}
-
-			var holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );
-			holesFirst = isCCW ? ! holesFirst : holesFirst;
-
-			// console.log("Holes first", holesFirst);
-
-			var betterShapeHoles = [];
-			var newShapes = [];
-			var newShapeHoles = [];
-			var mainIdx = 0;
-			var tmpPoints;
-
-			newShapes[ mainIdx ] = undefined;
-			newShapeHoles[ mainIdx ] = [];
-
-			for ( var i = 0, l = subPaths.length; i < l; i ++ ) {
-
-				tmpPath = subPaths[ i ];
-				tmpPoints = tmpPath.getPoints();
-				solid = isClockWise( tmpPoints );
-				solid = isCCW ? ! solid : solid;
-
-				if ( solid ) {
-
-					if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )	mainIdx ++;
-
-					newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };
-					newShapes[ mainIdx ].s.curves = tmpPath.curves;
-
-					if ( holesFirst )	mainIdx ++;
-					newShapeHoles[ mainIdx ] = [];
-
-					//console.log('cw', i);
-
-				} else {
-
-					newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );
-
-					//console.log('ccw', i);
-
-				}
-
-			}
-
-			// only Holes? -> probably all Shapes with wrong orientation
-			if ( ! newShapes[ 0 ] )	return	toShapesNoHoles( subPaths );
-
-
-			if ( newShapes.length > 1 ) {
-
-				var ambiguous = false;
-				var toChange = [];
-
-				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {
-
-					betterShapeHoles[ sIdx ] = [];
-
-				}
-
-				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {
-
-					var sho = newShapeHoles[ sIdx ];
-
-					for ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {
-
-						var ho = sho[ hIdx ];
-						var hole_unassigned = true;
-
-						for ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {
-
-							if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {
-
-								if ( sIdx !== s2Idx )	toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );
-								if ( hole_unassigned ) {
-
-									hole_unassigned = false;
-									betterShapeHoles[ s2Idx ].push( ho );
-
-								} else {
-
-									ambiguous = true;
-
-								}
-
-							}
-
-						}
-						if ( hole_unassigned ) {
-
-							betterShapeHoles[ sIdx ].push( ho );
-
-						}
-
-					}
-
-				}
-				// console.log("ambiguous: ", ambiguous);
-				if ( toChange.length > 0 ) {
-
-					// console.log("to change: ", toChange);
-					if ( ! ambiguous )	newShapeHoles = betterShapeHoles;
-
-				}
-
-			}
-
-			var tmpHoles;
-
-			for ( var i = 0, il = newShapes.length; i < il; i ++ ) {
-
-				tmpShape = newShapes[ i ].s;
-				shapes.push( tmpShape );
-				tmpHoles = newShapeHoles[ i ];
-
-				for ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {
-
-					tmpShape.holes.push( tmpHoles[ j ].h );
-
-				}
-
-			}
-
-			//console.log("shape", shapes);
-
-			return shapes;
-
-		}
-
-	} );
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-
-	function Font( data ) {
-
-		this.type = 'Font';
-
-		this.data = data;
-
-	}
-
-	Object.assign( Font.prototype, {
-
-		isFont: true,
-
-		generateShapes: function ( text, size ) {
-
-			if ( size === undefined ) size = 100;
-
-			var shapes = [];
-			var paths = createPaths( text, size, this.data );
-
-			for ( var p = 0, pl = paths.length; p < pl; p ++ ) {
-
-				Array.prototype.push.apply( shapes, paths[ p ].toShapes() );
-
-			}
-
-			return shapes;
-
-		}
-
-	} );
-
-	function createPaths( text, size, data ) {
-
-		var chars = Array.from ? Array.from( text ) : String( text ).split( '' ); // see #13988
-		var scale = size / data.resolution;
-		var line_height = ( data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness ) * scale;
-
-		var paths = [];
-
-		var offsetX = 0, offsetY = 0;
-
-		for ( var i = 0; i < chars.length; i ++ ) {
-
-			var char = chars[ i ];
-
-			if ( char === '\n' ) {
-
-				offsetX = 0;
-				offsetY -= line_height;
-
-			} else {
-
-				var ret = createPath( char, scale, offsetX, offsetY, data );
-				offsetX += ret.offsetX;
-				paths.push( ret.path );
-
-			}
-
-		}
-
-		return paths;
-
-	}
-
-	function createPath( char, scale, offsetX, offsetY, data ) {
-
-		var glyph = data.glyphs[ char ] || data.glyphs[ '?' ];
-
-		if ( ! glyph ) return;
-
-		var path = new ShapePath();
-
-		var x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2;
-
-		if ( glyph.o ) {
-
-			var outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) );
-
-			for ( var i = 0, l = outline.length; i < l; ) {
-
-				var action = outline[ i ++ ];
-
-				switch ( action ) {
-
-					case 'm': // moveTo
-
-						x = outline[ i ++ ] * scale + offsetX;
-						y = outline[ i ++ ] * scale + offsetY;
-
-						path.moveTo( x, y );
-
-						break;
-
-					case 'l': // lineTo
-
-						x = outline[ i ++ ] * scale + offsetX;
-						y = outline[ i ++ ] * scale + offsetY;
-
-						path.lineTo( x, y );
-
-						break;
-
-					case 'q': // quadraticCurveTo
-
-						cpx = outline[ i ++ ] * scale + offsetX;
-						cpy = outline[ i ++ ] * scale + offsetY;
-						cpx1 = outline[ i ++ ] * scale + offsetX;
-						cpy1 = outline[ i ++ ] * scale + offsetY;
-
-						path.quadraticCurveTo( cpx1, cpy1, cpx, cpy );
-
-						break;
-
-					case 'b': // bezierCurveTo
-
-						cpx = outline[ i ++ ] * scale + offsetX;
-						cpy = outline[ i ++ ] * scale + offsetY;
-						cpx1 = outline[ i ++ ] * scale + offsetX;
-						cpy1 = outline[ i ++ ] * scale + offsetY;
-						cpx2 = outline[ i ++ ] * scale + offsetX;
-						cpy2 = outline[ i ++ ] * scale + offsetY;
-
-						path.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy );
-
-						break;
-
-				}
-
-			}
-
-		}
-
-		return { offsetX: glyph.ha * scale, path: path };
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function FontLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( FontLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var loader = new FileLoader( this.manager );
-			loader.setPath( this.path );
-			loader.load( url, function ( text ) {
-
-				var json;
-
-				try {
-
-					json = JSON.parse( text );
-
-				} catch ( e ) {
-
-					console.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' );
-					json = JSON.parse( text.substring( 65, text.length - 2 ) );
-
-				}
-
-				var font = scope.parse( json );
-
-				if ( onLoad ) onLoad( font );
-
-			}, onProgress, onError );
-
-		},
-
-		parse: function ( json ) {
-
-			return new Font( json );
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Loader() {}
-
-	Loader.Handlers = {
-
-		handlers: [],
-
-		add: function ( regex, loader ) {
-
-			this.handlers.push( regex, loader );
-
-		},
-
-		get: function ( file ) {
-
-			var handlers = this.handlers;
-
-			for ( var i = 0, l = handlers.length; i < l; i += 2 ) {
-
-				var regex = handlers[ i ];
-				var loader = handlers[ i + 1 ];
-
-				if ( regex.test( file ) ) {
-
-					return loader;
-
-				}
-
-			}
-
-			return null;
-
-		}
-
-	};
-
-	Object.assign( Loader.prototype, {
-
-		crossOrigin: 'anonymous',
-
-		onLoadStart: function () {},
-
-		onLoadProgress: function () {},
-
-		onLoadComplete: function () {},
-
-		initMaterials: function ( materials, texturePath, crossOrigin ) {
-
-			var array = [];
-
-			for ( var i = 0; i < materials.length; ++ i ) {
-
-				array[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );
-
-			}
-
-			return array;
-
-		},
-
-		createMaterial: ( function () {
-
-			var BlendingMode = {
-				NoBlending: NoBlending,
-				NormalBlending: NormalBlending,
-				AdditiveBlending: AdditiveBlending,
-				SubtractiveBlending: SubtractiveBlending,
-				MultiplyBlending: MultiplyBlending,
-				CustomBlending: CustomBlending
-			};
-
-			var color = new Color();
-			var textureLoader = new TextureLoader();
-			var materialLoader = new MaterialLoader();
-
-			return function createMaterial( m, texturePath, crossOrigin ) {
-
-				// convert from old material format
-
-				var textures = {};
-
-				function loadTexture( path, repeat, offset, wrap, anisotropy ) {
-
-					var fullPath = texturePath + path;
-					var loader = Loader.Handlers.get( fullPath );
-
-					var texture;
-
-					if ( loader !== null ) {
-
-						texture = loader.load( fullPath );
-
-					} else {
-
-						textureLoader.setCrossOrigin( crossOrigin );
-						texture = textureLoader.load( fullPath );
-
-					}
-
-					if ( repeat !== undefined ) {
-
-						texture.repeat.fromArray( repeat );
-
-						if ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping;
-						if ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping;
-
-					}
-
-					if ( offset !== undefined ) {
-
-						texture.offset.fromArray( offset );
-
-					}
-
-					if ( wrap !== undefined ) {
-
-						if ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping;
-						if ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping;
-
-						if ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping;
-						if ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping;
-
-					}
-
-					if ( anisotropy !== undefined ) {
-
-						texture.anisotropy = anisotropy;
-
-					}
-
-					var uuid = _Math.generateUUID();
-
-					textures[ uuid ] = texture;
-
-					return uuid;
-
-				}
-
-				//
-
-				var json = {
-					uuid: _Math.generateUUID(),
-					type: 'MeshLambertMaterial'
-				};
-
-				for ( var name in m ) {
-
-					var value = m[ name ];
-
-					switch ( name ) {
-
-						case 'DbgColor':
-						case 'DbgIndex':
-						case 'opticalDensity':
-						case 'illumination':
-							break;
-						case 'DbgName':
-							json.name = value;
-							break;
-						case 'blending':
-							json.blending = BlendingMode[ value ];
-							break;
-						case 'colorAmbient':
-						case 'mapAmbient':
-							console.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' );
-							break;
-						case 'colorDiffuse':
-							json.color = color.fromArray( value ).getHex();
-							break;
-						case 'colorSpecular':
-							json.specular = color.fromArray( value ).getHex();
-							break;
-						case 'colorEmissive':
-							json.emissive = color.fromArray( value ).getHex();
-							break;
-						case 'specularCoef':
-							json.shininess = value;
-							break;
-						case 'shading':
-							if ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';
-							if ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';
-							if ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';
-							break;
-						case 'mapDiffuse':
-							json.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );
-							break;
-						case 'mapDiffuseRepeat':
-						case 'mapDiffuseOffset':
-						case 'mapDiffuseWrap':
-						case 'mapDiffuseAnisotropy':
-							break;
-						case 'mapEmissive':
-							json.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy );
-							break;
-						case 'mapEmissiveRepeat':
-						case 'mapEmissiveOffset':
-						case 'mapEmissiveWrap':
-						case 'mapEmissiveAnisotropy':
-							break;
-						case 'mapLight':
-							json.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );
-							break;
-						case 'mapLightRepeat':
-						case 'mapLightOffset':
-						case 'mapLightWrap':
-						case 'mapLightAnisotropy':
-							break;
-						case 'mapAO':
-							json.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );
-							break;
-						case 'mapAORepeat':
-						case 'mapAOOffset':
-						case 'mapAOWrap':
-						case 'mapAOAnisotropy':
-							break;
-						case 'mapBump':
-							json.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );
-							break;
-						case 'mapBumpScale':
-							json.bumpScale = value;
-							break;
-						case 'mapBumpRepeat':
-						case 'mapBumpOffset':
-						case 'mapBumpWrap':
-						case 'mapBumpAnisotropy':
-							break;
-						case 'mapNormal':
-							json.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );
-							break;
-						case 'mapNormalFactor':
-							json.normalScale = value;
-							break;
-						case 'mapNormalRepeat':
-						case 'mapNormalOffset':
-						case 'mapNormalWrap':
-						case 'mapNormalAnisotropy':
-							break;
-						case 'mapSpecular':
-							json.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );
-							break;
-						case 'mapSpecularRepeat':
-						case 'mapSpecularOffset':
-						case 'mapSpecularWrap':
-						case 'mapSpecularAnisotropy':
-							break;
-						case 'mapMetalness':
-							json.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy );
-							break;
-						case 'mapMetalnessRepeat':
-						case 'mapMetalnessOffset':
-						case 'mapMetalnessWrap':
-						case 'mapMetalnessAnisotropy':
-							break;
-						case 'mapRoughness':
-							json.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy );
-							break;
-						case 'mapRoughnessRepeat':
-						case 'mapRoughnessOffset':
-						case 'mapRoughnessWrap':
-						case 'mapRoughnessAnisotropy':
-							break;
-						case 'mapAlpha':
-							json.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );
-							break;
-						case 'mapAlphaRepeat':
-						case 'mapAlphaOffset':
-						case 'mapAlphaWrap':
-						case 'mapAlphaAnisotropy':
-							break;
-						case 'flipSided':
-							json.side = BackSide;
-							break;
-						case 'doubleSided':
-							json.side = DoubleSide;
-							break;
-						case 'transparency':
-							console.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );
-							json.opacity = value;
-							break;
-						case 'depthTest':
-						case 'depthWrite':
-						case 'colorWrite':
-						case 'opacity':
-						case 'reflectivity':
-						case 'transparent':
-						case 'visible':
-						case 'wireframe':
-							json[ name ] = value;
-							break;
-						case 'vertexColors':
-							if ( value === true ) json.vertexColors = VertexColors;
-							if ( value === 'face' ) json.vertexColors = FaceColors;
-							break;
-						default:
-							console.error( 'THREE.Loader.createMaterial: Unsupported', name, value );
-							break;
-
-					}
-
-				}
-
-				if ( json.type === 'MeshBasicMaterial' ) delete json.emissive;
-				if ( json.type !== 'MeshPhongMaterial' ) delete json.specular;
-
-				if ( json.opacity < 1 ) json.transparent = true;
-
-				materialLoader.setTextures( textures );
-
-				return materialLoader.parse( json );
-
-			};
-
-		} )()
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var context;
-
-	var AudioContext = {
-
-		getContext: function () {
-
-			if ( context === undefined ) {
-
-				context = new ( window.AudioContext || window.webkitAudioContext )();
-
-			}
-
-			return context;
-
-		},
-
-		setContext: function ( value ) {
-
-			context = value;
-
-		}
-
-	};
-
-	/**
-	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
-	 */
-
-	function AudioLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( AudioLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var loader = new FileLoader( this.manager );
-			loader.setResponseType( 'arraybuffer' );
-			loader.setPath( this.path );
-			loader.load( url, function ( buffer ) {
-
-				// Create a copy of the buffer. The `decodeAudioData` method
-				// detaches the buffer when complete, preventing reuse.
-				var bufferCopy = buffer.slice( 0 );
-
-				var context = AudioContext.getContext();
-				context.decodeAudioData( bufferCopy, function ( audioBuffer ) {
-
-					onLoad( audioBuffer );
-
-				} );
-
-			}, onProgress, onError );
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * Primary reference:
-	 *   https://graphics.stanford.edu/papers/envmap/envmap.pdf
-	 *
-	 * Secondary reference:
-	 *   https://www.ppsloan.org/publications/StupidSH36.pdf
-	 */
-
-	// 3-band SH defined by 9 coefficients
-
-	function SphericalHarmonics3() {
-
-		this.coefficients = [];
-
-		for ( var i = 0; i < 9; i ++ ) {
-
-			this.coefficients.push( new Vector3() );
-
-		}
-
-	}
-
-	Object.assign( SphericalHarmonics3.prototype, {
-
-		isSphericalHarmonics3: true,
-
-		set: function ( coefficients ) {
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				this.coefficients[ i ].copy( coefficients[ i ] );
-
-			}
-
-			return this;
-
-		},
-
-		zero: function () {
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				this.coefficients[ i ].set( 0, 0, 0 );
-
-			}
-
-			return this;
-
-		},
-
-		// get the radiance in the direction of the normal
-		// target is a Vector3
-		getAt: function ( normal, target ) {
-
-			// normal is assumed to be unit length
-
-			var x = normal.x, y = normal.y, z = normal.z;
-
-			var coeff = this.coefficients;
-
-			// band 0
-			target = coeff[ 0 ] * 0.282095;
-
-			// band 1
-			target += coeff[ 1 ] * 0.488603 * y;
-			target += coeff[ 2 ] * 0.488603 * z;
-			target += coeff[ 3 ] * 0.488603 * x;
-
-			// band 2
-			target += coeff[ 4 ] * 1.092548 * ( x * y );
-			target += coeff[ 5 ] * 1.092548 * ( y * z );
-			target += coeff[ 6 ] * 0.315392 * ( 3.0 * z * z - 1.0 );
-			target += coeff[ 7 ] * 1.092548 * ( x * z );
-			target += coeff[ 8 ] * 0.546274 * ( x * x - y * y );
-
-			return target;
-
-		},
-
-		// get the irradiance (radiance convolved with cosine lobe) in the direction of the normal
-		// target is a Vector3
-		// https://graphics.stanford.edu/papers/envmap/envmap.pdf
-		getIrradianceAt: function ( normal, target ) {
-
-			// normal is assumed to be unit length
-
-			var x = normal.x, y = normal.y, z = normal.z;
-
-			var coeff = this.coefficients;
-
-			// band 0
-			target = coeff[ 0 ] * 0.886227; // π * 0.282095
-
-			// band 1
-			target += coeff[ 1 ] * 2.0 * 0.511664 * y; // ( 2 * π / 3 ) * 0.488603
-			target += coeff[ 2 ] * 2.0 * 0.511664 * z;
-			target += coeff[ 3 ] * 2.0 * 0.511664 * x;
-
-			// band 2
-			target += coeff[ 4 ] * 2.0 * 0.429043 * x * y; // ( π / 4 ) * 1.092548
-			target += coeff[ 5 ] * 2.0 * 0.429043 * y * z;
-			target += coeff[ 6 ] * ( 0.743125 * z * z - 0.247708 ); // ( π / 4 ) * 0.315392 * 3
-			target += coeff[ 7 ] * 2.0 * 0.429043 * x * z;
-			target += coeff[ 8 ] * 0.429043 * ( x * x - y * y ); // ( π / 4 ) * 0.546274
-
-			return target;
-
-		},
-
-		add: function ( sh ) {
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				this.coefficients[ i ].add( sh.coefficients[ i ] );
-
-			}
-
-			return this;
-
-		},
-
-
-		scale: function ( s ) {
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				this.coefficients[ i ].multiplyScalar( s );
-
-			}
-
-			return this;
-
-		},
-
-		lerp: function ( sh, alpha ) {
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				this.coefficients[ i ].lerp( sh.coefficients[ i ], alpha );
-
-			}
-
-			return this;
-
-		},
-
-		equals: function ( sh ) {
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				if ( ! this.coefficients[ i ].equals( sh.coefficients[ i ] ) ) {
-
-					return false;
-
-				}
-
-			}
-
-			return true;
-
-		},
-
-		copy: function ( sh ) {
-
-			return this.set( sh.coefficients );
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		fromArray: function ( array ) {
-
-			var coefficients = this.coefficients;
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				coefficients[ i ].fromArray( array, i * 3 );
-
-			}
-
-			return this;
-
-		},
-
-		toArray: function () {
-
-			var array = [];
-			var coefficients = this.coefficients;
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				coefficients[ i ].toArray( array, i * 3 );
-
-			}
-
-			return array;
-
-		}
-
-	} );
-
-	Object.assign( SphericalHarmonics3, {
-
-		// evaluate the basis functions
-		// shBasis is an Array[ 9 ]
-		getBasisAt: function ( normal, shBasis ) {
-
-			// normal is assumed to be unit length
-
-			var x = normal.x, y = normal.y, z = normal.z;
-
-			// band 0
-			shBasis[ 0 ] = 0.282095;
-
-			// band 1
-			shBasis[ 1 ] = 0.488603 * y;
-			shBasis[ 2 ] = 0.488603 * z;
-			shBasis[ 3 ] = 0.488603 * x;
-
-			// band 2
-			shBasis[ 4 ] = 1.092548 * x * y;
-			shBasis[ 5 ] = 1.092548 * y * z;
-			shBasis[ 6 ] = 0.315392 * ( 3 * z * z - 1 );
-			shBasis[ 7 ] = 1.092548 * x * z;
-			shBasis[ 8 ] = 0.546274 * ( x * x - y * y );
-
-		}
-
-	} );
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * A LightProbe is a source of indirect-diffuse light
-	 */
-
-	function LightProbe( sh, intensity ) {
-
-		Light.call( this, undefined, intensity );
-
-		this.sh = ( sh !== undefined ) ? sh : new SphericalHarmonics3();
-
-	}
-
-	LightProbe.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: LightProbe,
-
-		isLightProbe: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.sh.copy( source.sh );
-			this.intensity = source.intensity;
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Light.prototype.toJSON.call( this, meta );
-
-			// data.sh = this.sh.toArray(); // todo
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function HemisphereLightProbe( skyColor, groundColor, intensity ) {
-
-		LightProbe.call( this, undefined, intensity );
-
-		var color1 = new Color().set( skyColor );
-		var color2 = new Color().set( groundColor );
-
-		var sky = new Vector3( color1.r, color1.g, color1.b );
-		var ground = new Vector3( color2.r, color2.g, color2.b );
-
-		// without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI );
-		var c0 = Math.sqrt( Math.PI );
-		var c1 = c0 * Math.sqrt( 0.75 );
-
-		this.sh.coefficients[ 0 ].copy( sky ).add( ground ).multiplyScalar( c0 );
-		this.sh.coefficients[ 1 ].copy( sky ).sub( ground ).multiplyScalar( c1 );
-
-	}
-
-	HemisphereLightProbe.prototype = Object.assign( Object.create( LightProbe.prototype ), {
-
-		constructor: HemisphereLightProbe,
-
-		isHemisphereLightProbe: true,
-
-		copy: function ( source ) { // modifying colors not currently supported
-
-			LightProbe.prototype.copy.call( this, source );
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = LightProbe.prototype.toJSON.call( this, meta );
-
-			// data.sh = this.sh.toArray(); // todo
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function AmbientLightProbe( color, intensity ) {
-
-		LightProbe.call( this, undefined, intensity );
-
-		var color1 = new Color().set( color );
-
-		// without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI );
-		this.sh.coefficients[ 0 ].set( color1.r, color1.g, color1.b ).multiplyScalar( 2 * Math.sqrt( Math.PI ) );
-
-	}
-
-	AmbientLightProbe.prototype = Object.assign( Object.create( LightProbe.prototype ), {
-
-		constructor: AmbientLightProbe,
-
-		isAmbientLightProbe: true,
-
-		copy: function ( source ) { // modifying color not currently supported
-
-			LightProbe.prototype.copy.call( this, source );
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = LightProbe.prototype.toJSON.call( this, meta );
-
-			// data.sh = this.sh.toArray(); // todo
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function StereoCamera() {
-
-		this.type = 'StereoCamera';
-
-		this.aspect = 1;
-
-		this.eyeSep = 0.064;
-
-		this.cameraL = new PerspectiveCamera();
-		this.cameraL.layers.enable( 1 );
-		this.cameraL.matrixAutoUpdate = false;
-
-		this.cameraR = new PerspectiveCamera();
-		this.cameraR.layers.enable( 2 );
-		this.cameraR.matrixAutoUpdate = false;
-
-	}
-
-	Object.assign( StereoCamera.prototype, {
-
-		update: ( function () {
-
-			var instance, focus, fov, aspect, near, far, zoom, eyeSep;
-
-			var eyeRight = new Matrix4();
-			var eyeLeft = new Matrix4();
-
-			return function update( camera ) {
-
-				var needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov ||
-													aspect !== camera.aspect * this.aspect || near !== camera.near ||
-													far !== camera.far || zoom !== camera.zoom || eyeSep !== this.eyeSep;
-
-				if ( needsUpdate ) {
-
-					instance = this;
-					focus = camera.focus;
-					fov = camera.fov;
-					aspect = camera.aspect * this.aspect;
-					near = camera.near;
-					far = camera.far;
-					zoom = camera.zoom;
-
-					// Off-axis stereoscopic effect based on
-					// http://paulbourke.net/stereographics/stereorender/
-
-					var projectionMatrix = camera.projectionMatrix.clone();
-					eyeSep = this.eyeSep / 2;
-					var eyeSepOnProjection = eyeSep * near / focus;
-					var ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom;
-					var xmin, xmax;
-
-					// translate xOffset
-
-					eyeLeft.elements[ 12 ] = - eyeSep;
-					eyeRight.elements[ 12 ] = eyeSep;
-
-					// for left eye
-
-					xmin = - ymax * aspect + eyeSepOnProjection;
-					xmax = ymax * aspect + eyeSepOnProjection;
-
-					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
-					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );
-
-					this.cameraL.projectionMatrix.copy( projectionMatrix );
-
-					// for right eye
-
-					xmin = - ymax * aspect - eyeSepOnProjection;
-					xmax = ymax * aspect - eyeSepOnProjection;
-
-					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
-					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );
-
-					this.cameraR.projectionMatrix.copy( projectionMatrix );
-
-				}
-
-				this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft );
-				this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight );
-
-			};
-
-		} )()
-
-	} );
-
-	/**
-	 * Camera for rendering cube maps
-	 *	- renders scene into axis-aligned cube
-	 *
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	var fov = 90, aspect = 1;
-
-	function CubeCamera( near, far, cubeResolution, options ) {
-
-		Object3D.call( this );
-
-		this.type = 'CubeCamera';
-
-		var cameraPX = new PerspectiveCamera( fov, aspect, near, far );
-		cameraPX.up.set( 0, - 1, 0 );
-		cameraPX.lookAt( new Vector3( 1, 0, 0 ) );
-		this.add( cameraPX );
-
-		var cameraNX = new PerspectiveCamera( fov, aspect, near, far );
-		cameraNX.up.set( 0, - 1, 0 );
-		cameraNX.lookAt( new Vector3( - 1, 0, 0 ) );
-		this.add( cameraNX );
-
-		var cameraPY = new PerspectiveCamera( fov, aspect, near, far );
-		cameraPY.up.set( 0, 0, 1 );
-		cameraPY.lookAt( new Vector3( 0, 1, 0 ) );
-		this.add( cameraPY );
-
-		var cameraNY = new PerspectiveCamera( fov, aspect, near, far );
-		cameraNY.up.set( 0, 0, - 1 );
-		cameraNY.lookAt( new Vector3( 0, - 1, 0 ) );
-		this.add( cameraNY );
-
-		var cameraPZ = new PerspectiveCamera( fov, aspect, near, far );
-		cameraPZ.up.set( 0, - 1, 0 );
-		cameraPZ.lookAt( new Vector3( 0, 0, 1 ) );
-		this.add( cameraPZ );
-
-		var cameraNZ = new PerspectiveCamera( fov, aspect, near, far );
-		cameraNZ.up.set( 0, - 1, 0 );
-		cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );
-		this.add( cameraNZ );
-
-		options = options || { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter };
-
-		this.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options );
-		this.renderTarget.texture.name = "CubeCamera";
-
-		this.update = function ( renderer, scene ) {
-
-			if ( this.parent === null ) this.updateMatrixWorld();
-
-			var currentRenderTarget = renderer.getRenderTarget();
-
-			var renderTarget = this.renderTarget;
-			var generateMipmaps = renderTarget.texture.generateMipmaps;
-
-			renderTarget.texture.generateMipmaps = false;
-
-			renderer.setRenderTarget( renderTarget, 0 );
-			renderer.render( scene, cameraPX );
-
-			renderer.setRenderTarget( renderTarget, 1 );
-			renderer.render( scene, cameraNX );
-
-			renderer.setRenderTarget( renderTarget, 2 );
-			renderer.render( scene, cameraPY );
-
-			renderer.setRenderTarget( renderTarget, 3 );
-			renderer.render( scene, cameraNY );
-
-			renderer.setRenderTarget( renderTarget, 4 );
-			renderer.render( scene, cameraPZ );
-
-			renderTarget.texture.generateMipmaps = generateMipmaps;
-
-			renderer.setRenderTarget( renderTarget, 5 );
-			renderer.render( scene, cameraNZ );
-
-			renderer.setRenderTarget( currentRenderTarget );
-
-		};
-
-		this.clear = function ( renderer, color, depth, stencil ) {
-
-			var currentRenderTarget = renderer.getRenderTarget();
-
-			var renderTarget = this.renderTarget;
-
-			for ( var i = 0; i < 6; i ++ ) {
-
-				renderer.setRenderTarget( renderTarget, i );
-
-				renderer.clear( color, depth, stencil );
-
-			}
-
-			renderer.setRenderTarget( currentRenderTarget );
-
-		};
-
-	}
-
-	CubeCamera.prototype = Object.create( Object3D.prototype );
-	CubeCamera.prototype.constructor = CubeCamera;
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Clock( autoStart ) {
-
-		this.autoStart = ( autoStart !== undefined ) ? autoStart : true;
-
-		this.startTime = 0;
-		this.oldTime = 0;
-		this.elapsedTime = 0;
-
-		this.running = false;
-
-	}
-
-	Object.assign( Clock.prototype, {
-
-		start: function () {
-
-			this.startTime = ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732
-
-			this.oldTime = this.startTime;
-			this.elapsedTime = 0;
-			this.running = true;
-
-		},
-
-		stop: function () {
-
-			this.getElapsedTime();
-			this.running = false;
-			this.autoStart = false;
-
-		},
-
-		getElapsedTime: function () {
-
-			this.getDelta();
-			return this.elapsedTime;
-
-		},
-
-		getDelta: function () {
-
-			var diff = 0;
-
-			if ( this.autoStart && ! this.running ) {
-
-				this.start();
-				return 0;
-
-			}
-
-			if ( this.running ) {
-
-				var newTime = ( typeof performance === 'undefined' ? Date : performance ).now();
-
-				diff = ( newTime - this.oldTime ) / 1000;
-				this.oldTime = newTime;
-
-				this.elapsedTime += diff;
-
-			}
-
-			return diff;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function AudioListener() {
-
-		Object3D.call( this );
-
-		this.type = 'AudioListener';
-
-		this.context = AudioContext.getContext();
-
-		this.gain = this.context.createGain();
-		this.gain.connect( this.context.destination );
-
-		this.filter = null;
-
-		this.timeDelta = 0;
-
-	}
-
-	AudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: AudioListener,
-
-		getInput: function () {
-
-			return this.gain;
-
-		},
-
-		removeFilter: function ( ) {
-
-			if ( this.filter !== null ) {
-
-				this.gain.disconnect( this.filter );
-				this.filter.disconnect( this.context.destination );
-				this.gain.connect( this.context.destination );
-				this.filter = null;
-
-			}
-
-			return this;
-
-		},
-
-		getFilter: function () {
-
-			return this.filter;
-
-		},
-
-		setFilter: function ( value ) {
-
-			if ( this.filter !== null ) {
-
-				this.gain.disconnect( this.filter );
-				this.filter.disconnect( this.context.destination );
-
-			} else {
-
-				this.gain.disconnect( this.context.destination );
-
-			}
-
-			this.filter = value;
-			this.gain.connect( this.filter );
-			this.filter.connect( this.context.destination );
-
-			return this;
-
-		},
-
-		getMasterVolume: function () {
-
-			return this.gain.gain.value;
-
-		},
-
-		setMasterVolume: function ( value ) {
-
-			this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );
-
-			return this;
-
-		},
-
-		updateMatrixWorld: ( function () {
-
-			var position = new Vector3();
-			var quaternion = new Quaternion();
-			var scale = new Vector3();
-
-			var orientation = new Vector3();
-			var clock = new Clock();
-
-			return function updateMatrixWorld( force ) {
-
-				Object3D.prototype.updateMatrixWorld.call( this, force );
-
-				var listener = this.context.listener;
-				var up = this.up;
-
-				this.timeDelta = clock.getDelta();
-
-				this.matrixWorld.decompose( position, quaternion, scale );
-
-				orientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );
-
-				if ( listener.positionX ) {
-
-					// code path for Chrome (see #14393)
-
-					var endTime = this.context.currentTime + this.timeDelta;
-
-					listener.positionX.linearRampToValueAtTime( position.x, endTime );
-					listener.positionY.linearRampToValueAtTime( position.y, endTime );
-					listener.positionZ.linearRampToValueAtTime( position.z, endTime );
-					listener.forwardX.linearRampToValueAtTime( orientation.x, endTime );
-					listener.forwardY.linearRampToValueAtTime( orientation.y, endTime );
-					listener.forwardZ.linearRampToValueAtTime( orientation.z, endTime );
-					listener.upX.linearRampToValueAtTime( up.x, endTime );
-					listener.upY.linearRampToValueAtTime( up.y, endTime );
-					listener.upZ.linearRampToValueAtTime( up.z, endTime );
-
-				} else {
-
-					listener.setPosition( position.x, position.y, position.z );
-					listener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );
-
-				}
-
-			};
-
-		} )()
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
-	 */
-
-	function Audio( listener ) {
-
-		Object3D.call( this );
-
-		this.type = 'Audio';
-
-		this.listener = listener;
-		this.context = listener.context;
-
-		this.gain = this.context.createGain();
-		this.gain.connect( listener.getInput() );
-
-		this.autoplay = false;
-
-		this.buffer = null;
-		this.detune = 0;
-		this.loop = false;
-		this.startTime = 0;
-		this.offset = 0;
-		this.playbackRate = 1;
-		this.isPlaying = false;
-		this.hasPlaybackControl = true;
-		this.sourceType = 'empty';
-
-		this.filters = [];
-
-	}
-
-	Audio.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Audio,
-
-		getOutput: function () {
-
-			return this.gain;
-
-		},
-
-		setNodeSource: function ( audioNode ) {
-
-			this.hasPlaybackControl = false;
-			this.sourceType = 'audioNode';
-			this.source = audioNode;
-			this.connect();
-
-			return this;
-
-		},
-
-		setMediaElementSource: function ( mediaElement ) {
-
-			this.hasPlaybackControl = false;
-			this.sourceType = 'mediaNode';
-			this.source = this.context.createMediaElementSource( mediaElement );
-			this.connect();
-
-			return this;
-
-		},
-
-		setBuffer: function ( audioBuffer ) {
-
-			this.buffer = audioBuffer;
-			this.sourceType = 'buffer';
-
-			if ( this.autoplay ) this.play();
-
-			return this;
-
-		},
-
-		play: function () {
-
-			if ( this.isPlaying === true ) {
-
-				console.warn( 'THREE.Audio: Audio is already playing.' );
-				return;
-
-			}
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			var source = this.context.createBufferSource();
-
-			source.buffer = this.buffer;
-			source.loop = this.loop;
-			source.onended = this.onEnded.bind( this );
-			this.startTime = this.context.currentTime;
-			source.start( this.startTime, this.offset );
-
-			this.isPlaying = true;
-
-			this.source = source;
-
-			this.setDetune( this.detune );
-			this.setPlaybackRate( this.playbackRate );
-
-			return this.connect();
-
-		},
-
-		pause: function () {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			if ( this.isPlaying === true ) {
-
-				this.source.stop();
-				this.source.onended = null;
-				this.offset += ( this.context.currentTime - this.startTime ) * this.playbackRate;
-				this.isPlaying = false;
-
-			}
-
-			return this;
-
-		},
-
-		stop: function () {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			this.source.stop();
-			this.source.onended = null;
-			this.offset = 0;
-			this.isPlaying = false;
-
-			return this;
-
-		},
-
-		connect: function () {
-
-			if ( this.filters.length > 0 ) {
-
-				this.source.connect( this.filters[ 0 ] );
-
-				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {
-
-					this.filters[ i - 1 ].connect( this.filters[ i ] );
-
-				}
-
-				this.filters[ this.filters.length - 1 ].connect( this.getOutput() );
-
-			} else {
-
-				this.source.connect( this.getOutput() );
-
-			}
-
-			return this;
-
-		},
-
-		disconnect: function () {
-
-			if ( this.filters.length > 0 ) {
-
-				this.source.disconnect( this.filters[ 0 ] );
-
-				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {
-
-					this.filters[ i - 1 ].disconnect( this.filters[ i ] );
-
-				}
-
-				this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );
-
-			} else {
-
-				this.source.disconnect( this.getOutput() );
-
-			}
-
-			return this;
-
-		},
-
-		getFilters: function () {
-
-			return this.filters;
-
-		},
-
-		setFilters: function ( value ) {
-
-			if ( ! value ) value = [];
-
-			if ( this.isPlaying === true ) {
-
-				this.disconnect();
-				this.filters = value;
-				this.connect();
-
-			} else {
-
-				this.filters = value;
-
-			}
-
-			return this;
-
-		},
-
-		setDetune: function ( value ) {
-
-			this.detune = value;
-
-			if ( this.source.detune === undefined ) return; // only set detune when available
-
-			if ( this.isPlaying === true ) {
-
-				this.source.detune.setTargetAtTime( this.detune, this.context.currentTime, 0.01 );
-
-			}
-
-			return this;
-
-		},
-
-		getDetune: function () {
-
-			return this.detune;
-
-		},
-
-		getFilter: function () {
-
-			return this.getFilters()[ 0 ];
-
-		},
-
-		setFilter: function ( filter ) {
-
-			return this.setFilters( filter ? [ filter ] : [] );
-
-		},
-
-		setPlaybackRate: function ( value ) {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			this.playbackRate = value;
-
-			if ( this.isPlaying === true ) {
-
-				this.source.playbackRate.setTargetAtTime( this.playbackRate, this.context.currentTime, 0.01 );
-
-			}
-
-			return this;
-
-		},
-
-		getPlaybackRate: function () {
-
-			return this.playbackRate;
-
-		},
-
-		onEnded: function () {
-
-			this.isPlaying = false;
-
-		},
-
-		getLoop: function () {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return false;
-
-			}
-
-			return this.loop;
-
-		},
-
-		setLoop: function ( value ) {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			this.loop = value;
-
-			if ( this.isPlaying === true ) {
-
-				this.source.loop = this.loop;
-
-			}
-
-			return this;
-
-		},
-
-		getVolume: function () {
-
-			return this.gain.gain.value;
-
-		},
-
-		setVolume: function ( value ) {
-
-			this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 );
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function PositionalAudio( listener ) {
-
-		Audio.call( this, listener );
-
-		this.panner = this.context.createPanner();
-		this.panner.panningModel = 'HRTF';
-		this.panner.connect( this.gain );
-
-	}
-
-	PositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {
-
-		constructor: PositionalAudio,
-
-		getOutput: function () {
-
-			return this.panner;
-
-		},
-
-		getRefDistance: function () {
-
-			return this.panner.refDistance;
-
-		},
-
-		setRefDistance: function ( value ) {
-
-			this.panner.refDistance = value;
-
-			return this;
-
-		},
-
-		getRolloffFactor: function () {
-
-			return this.panner.rolloffFactor;
-
-		},
-
-		setRolloffFactor: function ( value ) {
-
-			this.panner.rolloffFactor = value;
-
-			return this;
-
-		},
-
-		getDistanceModel: function () {
-
-			return this.panner.distanceModel;
-
-		},
-
-		setDistanceModel: function ( value ) {
-
-			this.panner.distanceModel = value;
-
-			return this;
-
-		},
-
-		getMaxDistance: function () {
-
-			return this.panner.maxDistance;
-
-		},
-
-		setMaxDistance: function ( value ) {
-
-			this.panner.maxDistance = value;
-
-			return this;
-
-		},
-
-		setDirectionalCone: function ( coneInnerAngle, coneOuterAngle, coneOuterGain ) {
-
-			this.panner.coneInnerAngle = coneInnerAngle;
-			this.panner.coneOuterAngle = coneOuterAngle;
-			this.panner.coneOuterGain = coneOuterGain;
-
-			return this;
-
-		},
-
-		updateMatrixWorld: ( function () {
-
-			var position = new Vector3();
-			var quaternion = new Quaternion();
-			var scale = new Vector3();
-
-			var orientation = new Vector3();
-
-			return function updateMatrixWorld( force ) {
-
-				Object3D.prototype.updateMatrixWorld.call( this, force );
-
-				if ( this.hasPlaybackControl === true && this.isPlaying === false ) return;
-
-				this.matrixWorld.decompose( position, quaternion, scale );
-
-				orientation.set( 0, 0, 1 ).applyQuaternion( quaternion );
-
-				var panner = this.panner;
-
-				if ( panner.positionX ) {
-
-					// code path for Chrome and Firefox (see #14393)
-
-					var endTime = this.context.currentTime + this.listener.timeDelta;
-
-					panner.positionX.linearRampToValueAtTime( position.x, endTime );
-					panner.positionY.linearRampToValueAtTime( position.y, endTime );
-					panner.positionZ.linearRampToValueAtTime( position.z, endTime );
-					panner.orientationX.linearRampToValueAtTime( orientation.x, endTime );
-					panner.orientationY.linearRampToValueAtTime( orientation.y, endTime );
-					panner.orientationZ.linearRampToValueAtTime( orientation.z, endTime );
-
-				} else {
-
-					panner.setPosition( position.x, position.y, position.z );
-					panner.setOrientation( orientation.x, orientation.y, orientation.z );
-
-				}
-
-			};
-
-		} )()
-
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function AudioAnalyser( audio, fftSize ) {
-
-		this.analyser = audio.context.createAnalyser();
-		this.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;
-
-		this.data = new Uint8Array( this.analyser.frequencyBinCount );
-
-		audio.getOutput().connect( this.analyser );
-
-	}
-
-	Object.assign( AudioAnalyser.prototype, {
-
-		getFrequencyData: function () {
-
-			this.analyser.getByteFrequencyData( this.data );
-
-			return this.data;
-
-		},
-
-		getAverageFrequency: function () {
-
-			var value = 0, data = this.getFrequencyData();
-
-			for ( var i = 0; i < data.length; i ++ ) {
-
-				value += data[ i ];
-
-			}
-
-			return value / data.length;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * Buffered scene graph property that allows weighted accumulation.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function PropertyMixer( binding, typeName, valueSize ) {
-
-		this.binding = binding;
-		this.valueSize = valueSize;
-
-		var bufferType = Float64Array,
-			mixFunction;
-
-		switch ( typeName ) {
-
-			case 'quaternion':
-				mixFunction = this._slerp;
-				break;
-
-			case 'string':
-			case 'bool':
-				bufferType = Array;
-				mixFunction = this._select;
-				break;
-
-			default:
-				mixFunction = this._lerp;
-
-		}
-
-		this.buffer = new bufferType( valueSize * 4 );
-		// layout: [ incoming | accu0 | accu1 | orig ]
-		//
-		// interpolators can use .buffer as their .result
-		// the data then goes to 'incoming'
-		//
-		// 'accu0' and 'accu1' are used frame-interleaved for
-		// the cumulative result and are compared to detect
-		// changes
-		//
-		// 'orig' stores the original state of the property
-
-		this._mixBufferRegion = mixFunction;
-
-		this.cumulativeWeight = 0;
-
-		this.useCount = 0;
-		this.referenceCount = 0;
-
-	}
-
-	Object.assign( PropertyMixer.prototype, {
-
-		// accumulate data in the 'incoming' region into 'accu<i>'
-		accumulate: function ( accuIndex, weight ) {
-
-			// note: happily accumulating nothing when weight = 0, the caller knows
-			// the weight and shouldn't have made the call in the first place
-
-			var buffer = this.buffer,
-				stride = this.valueSize,
-				offset = accuIndex * stride + stride,
-
-				currentWeight = this.cumulativeWeight;
-
-			if ( currentWeight === 0 ) {
-
-				// accuN := incoming * weight
-
-				for ( var i = 0; i !== stride; ++ i ) {
-
-					buffer[ offset + i ] = buffer[ i ];
-
-				}
-
-				currentWeight = weight;
-
-			} else {
-
-				// accuN := accuN + incoming * weight
-
-				currentWeight += weight;
-				var mix = weight / currentWeight;
-				this._mixBufferRegion( buffer, offset, 0, mix, stride );
-
-			}
-
-			this.cumulativeWeight = currentWeight;
-
-		},
-
-		// apply the state of 'accu<i>' to the binding when accus differ
-		apply: function ( accuIndex ) {
-
-			var stride = this.valueSize,
-				buffer = this.buffer,
-				offset = accuIndex * stride + stride,
-
-				weight = this.cumulativeWeight,
-
-				binding = this.binding;
-
-			this.cumulativeWeight = 0;
-
-			if ( weight < 1 ) {
-
-				// accuN := accuN + original * ( 1 - cumulativeWeight )
-
-				var originalValueOffset = stride * 3;
-
-				this._mixBufferRegion(
-					buffer, offset, originalValueOffset, 1 - weight, stride );
-
-			}
-
-			for ( var i = stride, e = stride + stride; i !== e; ++ i ) {
-
-				if ( buffer[ i ] !== buffer[ i + stride ] ) {
-
-					// value has changed -> update scene graph
-
-					binding.setValue( buffer, offset );
-					break;
-
-				}
-
-			}
-
-		},
-
-		// remember the state of the bound property and copy it to both accus
-		saveOriginalState: function () {
-
-			var binding = this.binding;
-
-			var buffer = this.buffer,
-				stride = this.valueSize,
-
-				originalValueOffset = stride * 3;
-
-			binding.getValue( buffer, originalValueOffset );
-
-			// accu[0..1] := orig -- initially detect changes against the original
-			for ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {
-
-				buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];
-
-			}
-
-			this.cumulativeWeight = 0;
-
-		},
-
-		// apply the state previously taken via 'saveOriginalState' to the binding
-		restoreOriginalState: function () {
-
-			var originalValueOffset = this.valueSize * 3;
-			this.binding.setValue( this.buffer, originalValueOffset );
-
-		},
-
-
-		// mix functions
-
-		_select: function ( buffer, dstOffset, srcOffset, t, stride ) {
-
-			if ( t >= 0.5 ) {
-
-				for ( var i = 0; i !== stride; ++ i ) {
-
-					buffer[ dstOffset + i ] = buffer[ srcOffset + i ];
-
-				}
-
-			}
-
-		},
-
-		_slerp: function ( buffer, dstOffset, srcOffset, t ) {
-
-			Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );
-
-		},
-
-		_lerp: function ( buffer, dstOffset, srcOffset, t, stride ) {
-
-			var s = 1 - t;
-
-			for ( var i = 0; i !== stride; ++ i ) {
-
-				var j = dstOffset + i;
-
-				buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * A reference to a real property in the scene graph.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	// Characters [].:/ are reserved for track binding syntax.
-	var RESERVED_CHARS_RE = '\\[\\]\\.:\\/';
-
-	function Composite( targetGroup, path, optionalParsedPath ) {
-
-		var parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );
-
-		this._targetGroup = targetGroup;
-		this._bindings = targetGroup.subscribe_( path, parsedPath );
-
-	}
-
-	Object.assign( Composite.prototype, {
-
-		getValue: function ( array, offset ) {
-
-			this.bind(); // bind all binding
-
-			var firstValidIndex = this._targetGroup.nCachedObjects_,
-				binding = this._bindings[ firstValidIndex ];
-
-			// and only call .getValue on the first
-			if ( binding !== undefined ) binding.getValue( array, offset );
-
-		},
-
-		setValue: function ( array, offset ) {
-
-			var bindings = this._bindings;
-
-			for ( var i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {
-
-				bindings[ i ].setValue( array, offset );
-
-			}
-
-		},
-
-		bind: function () {
-
-			var bindings = this._bindings;
-
-			for ( var i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {
-
-				bindings[ i ].bind();
-
-			}
-
-		},
-
-		unbind: function () {
-
-			var bindings = this._bindings;
-
-			for ( var i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) {
-
-				bindings[ i ].unbind();
-
-			}
-
-		}
-
-	} );
-
-
-	function PropertyBinding( rootNode, path, parsedPath ) {
-
-		this.path = path;
-		this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );
-
-		this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;
-
-		this.rootNode = rootNode;
-
-	}
-
-	Object.assign( PropertyBinding, {
-
-		Composite: Composite,
-
-		create: function ( root, path, parsedPath ) {
-
-			if ( ! ( root && root.isAnimationObjectGroup ) ) {
-
-				return new PropertyBinding( root, path, parsedPath );
-
-			} else {
-
-				return new PropertyBinding.Composite( root, path, parsedPath );
-
-			}
-
-		},
-
-		/**
-		 * Replaces spaces with underscores and removes unsupported characters from
-		 * node names, to ensure compatibility with parseTrackName().
-		 *
-		 * @param {string} name Node name to be sanitized.
-		 * @return {string}
-		 */
-		sanitizeNodeName: ( function () {
-
-			var reservedRe = new RegExp( '[' + RESERVED_CHARS_RE + ']', 'g' );
-
-			return function sanitizeNodeName( name ) {
-
-				return name.replace( /\s/g, '_' ).replace( reservedRe, '' );
-
-			};
-
-		}() ),
-
-		parseTrackName: function () {
-
-			// Attempts to allow node names from any language. ES5's `\w` regexp matches
-			// only latin characters, and the unicode \p{L} is not yet supported. So
-			// instead, we exclude reserved characters and match everything else.
-			var wordChar = '[^' + RESERVED_CHARS_RE + ']';
-			var wordCharOrDot = '[^' + RESERVED_CHARS_RE.replace( '\\.', '' ) + ']';
-
-			// Parent directories, delimited by '/' or ':'. Currently unused, but must
-			// be matched to parse the rest of the track name.
-			var directoryRe = /((?:WC+[\/:])*)/.source.replace( 'WC', wordChar );
-
-			// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
-			var nodeRe = /(WCOD+)?/.source.replace( 'WCOD', wordCharOrDot );
-
-			// Object on target node, and accessor. May not contain reserved
-			// characters. Accessor may contain any character except closing bracket.
-			var objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace( 'WC', wordChar );
-
-			// Property and accessor. May not contain reserved characters. Accessor may
-			// contain any non-bracket characters.
-			var propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace( 'WC', wordChar );
-
-			var trackRe = new RegExp( ''
-				+ '^'
-				+ directoryRe
-				+ nodeRe
-				+ objectRe
-				+ propertyRe
-				+ '$'
-			);
-
-			var supportedObjectNames = [ 'material', 'materials', 'bones' ];
-
-			return function parseTrackName( trackName ) {
-
-				var matches = trackRe.exec( trackName );
-
-				if ( ! matches ) {
-
-					throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );
-
-				}
-
-				var results = {
-					// directoryName: matches[ 1 ], // (tschw) currently unused
-					nodeName: matches[ 2 ],
-					objectName: matches[ 3 ],
-					objectIndex: matches[ 4 ],
-					propertyName: matches[ 5 ], // required
-					propertyIndex: matches[ 6 ]
-				};
-
-				var lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );
-
-				if ( lastDot !== undefined && lastDot !== - 1 ) {
-
-					var objectName = results.nodeName.substring( lastDot + 1 );
-
-					// Object names must be checked against a whitelist. Otherwise, there
-					// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
-					// 'bar' could be the objectName, or part of a nodeName (which can
-					// include '.' characters).
-					if ( supportedObjectNames.indexOf( objectName ) !== - 1 ) {
-
-						results.nodeName = results.nodeName.substring( 0, lastDot );
-						results.objectName = objectName;
-
-					}
-
-				}
-
-				if ( results.propertyName === null || results.propertyName.length === 0 ) {
-
-					throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );
-
-				}
-
-				return results;
-
-			};
-
-		}(),
-
-		findNode: function ( root, nodeName ) {
-
-			if ( ! nodeName || nodeName === "" || nodeName === "root" || nodeName === "." || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {
-
-				return root;
-
-			}
-
-			// search into skeleton bones.
-			if ( root.skeleton ) {
-
-				var bone = root.skeleton.getBoneByName( nodeName );
-
-				if ( bone !== undefined ) {
-
-					return bone;
-
-				}
-
-			}
-
-			// search into node subtree.
-			if ( root.children ) {
-
-				var searchNodeSubtree = function ( children ) {
-
-					for ( var i = 0; i < children.length; i ++ ) {
-
-						var childNode = children[ i ];
-
-						if ( childNode.name === nodeName || childNode.uuid === nodeName ) {
-
-							return childNode;
-
-						}
-
-						var result = searchNodeSubtree( childNode.children );
-
-						if ( result ) return result;
-
-					}
-
-					return null;
-
-				};
-
-				var subTreeNode = searchNodeSubtree( root.children );
-
-				if ( subTreeNode ) {
-
-					return subTreeNode;
-
-				}
-
-			}
-
-			return null;
-
-		}
-
-	} );
-
-	Object.assign( PropertyBinding.prototype, { // prototype, continued
-
-		// these are used to "bind" a nonexistent property
-		_getValue_unavailable: function () {},
-		_setValue_unavailable: function () {},
-
-		BindingType: {
-			Direct: 0,
-			EntireArray: 1,
-			ArrayElement: 2,
-			HasFromToArray: 3
-		},
-
-		Versioning: {
-			None: 0,
-			NeedsUpdate: 1,
-			MatrixWorldNeedsUpdate: 2
-		},
-
-		GetterByBindingType: [
-
-			function getValue_direct( buffer, offset ) {
-
-				buffer[ offset ] = this.node[ this.propertyName ];
-
-			},
-
-			function getValue_array( buffer, offset ) {
-
-				var source = this.resolvedProperty;
-
-				for ( var i = 0, n = source.length; i !== n; ++ i ) {
-
-					buffer[ offset ++ ] = source[ i ];
-
-				}
-
-			},
-
-			function getValue_arrayElement( buffer, offset ) {
-
-				buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];
-
-			},
-
-			function getValue_toArray( buffer, offset ) {
-
-				this.resolvedProperty.toArray( buffer, offset );
-
-			}
-
-		],
-
-		SetterByBindingTypeAndVersioning: [
-
-			[
-				// Direct
-
-				function setValue_direct( buffer, offset ) {
-
-					this.targetObject[ this.propertyName ] = buffer[ offset ];
-
-				},
-
-				function setValue_direct_setNeedsUpdate( buffer, offset ) {
-
-					this.targetObject[ this.propertyName ] = buffer[ offset ];
-					this.targetObject.needsUpdate = true;
-
-				},
-
-				function setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {
-
-					this.targetObject[ this.propertyName ] = buffer[ offset ];
-					this.targetObject.matrixWorldNeedsUpdate = true;
-
-				}
-
-			], [
-
-				// EntireArray
-
-				function setValue_array( buffer, offset ) {
-
-					var dest = this.resolvedProperty;
-
-					for ( var i = 0, n = dest.length; i !== n; ++ i ) {
-
-						dest[ i ] = buffer[ offset ++ ];
-
-					}
-
-				},
-
-				function setValue_array_setNeedsUpdate( buffer, offset ) {
-
-					var dest = this.resolvedProperty;
-
-					for ( var i = 0, n = dest.length; i !== n; ++ i ) {
-
-						dest[ i ] = buffer[ offset ++ ];
-
-					}
-
-					this.targetObject.needsUpdate = true;
-
-				},
-
-				function setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {
-
-					var dest = this.resolvedProperty;
-
-					for ( var i = 0, n = dest.length; i !== n; ++ i ) {
-
-						dest[ i ] = buffer[ offset ++ ];
-
-					}
-
-					this.targetObject.matrixWorldNeedsUpdate = true;
-
-				}
-
-			], [
-
-				// ArrayElement
-
-				function setValue_arrayElement( buffer, offset ) {
-
-					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
-
-				},
-
-				function setValue_arrayElement_setNeedsUpdate( buffer, offset ) {
-
-					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
-					this.targetObject.needsUpdate = true;
-
-				},
-
-				function setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {
-
-					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
-					this.targetObject.matrixWorldNeedsUpdate = true;
-
-				}
-
-			], [
-
-				// HasToFromArray
-
-				function setValue_fromArray( buffer, offset ) {
-
-					this.resolvedProperty.fromArray( buffer, offset );
-
-				},
-
-				function setValue_fromArray_setNeedsUpdate( buffer, offset ) {
-
-					this.resolvedProperty.fromArray( buffer, offset );
-					this.targetObject.needsUpdate = true;
-
-				},
-
-				function setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {
-
-					this.resolvedProperty.fromArray( buffer, offset );
-					this.targetObject.matrixWorldNeedsUpdate = true;
-
-				}
-
-			]
-
-		],
-
-		getValue: function getValue_unbound( targetArray, offset ) {
-
-			this.bind();
-			this.getValue( targetArray, offset );
-
-			// Note: This class uses a State pattern on a per-method basis:
-			// 'bind' sets 'this.getValue' / 'setValue' and shadows the
-			// prototype version of these methods with one that represents
-			// the bound state. When the property is not found, the methods
-			// become no-ops.
-
-		},
-
-		setValue: function getValue_unbound( sourceArray, offset ) {
-
-			this.bind();
-			this.setValue( sourceArray, offset );
-
-		},
-
-		// create getter / setter pair for a property in the scene graph
-		bind: function () {
-
-			var targetObject = this.node,
-				parsedPath = this.parsedPath,
-
-				objectName = parsedPath.objectName,
-				propertyName = parsedPath.propertyName,
-				propertyIndex = parsedPath.propertyIndex;
-
-			if ( ! targetObject ) {
-
-				targetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode;
-
-				this.node = targetObject;
-
-			}
-
-			// set fail state so we can just 'return' on error
-			this.getValue = this._getValue_unavailable;
-			this.setValue = this._setValue_unavailable;
-
-			// ensure there is a value node
-			if ( ! targetObject ) {
-
-				console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' );
-				return;
-
-			}
-
-			if ( objectName ) {
-
-				var objectIndex = parsedPath.objectIndex;
-
-				// special cases were we need to reach deeper into the hierarchy to get the face materials....
-				switch ( objectName ) {
-
-					case 'materials':
-
-						if ( ! targetObject.material ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );
-							return;
-
-						}
-
-						if ( ! targetObject.material.materials ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );
-							return;
-
-						}
-
-						targetObject = targetObject.material.materials;
-
-						break;
-
-					case 'bones':
-
-						if ( ! targetObject.skeleton ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );
-							return;
-
-						}
-
-						// potential future optimization: skip this if propertyIndex is already an integer
-						// and convert the integer string to a true integer.
-
-						targetObject = targetObject.skeleton.bones;
-
-						// support resolving morphTarget names into indices.
-						for ( var i = 0; i < targetObject.length; i ++ ) {
-
-							if ( targetObject[ i ].name === objectIndex ) {
-
-								objectIndex = i;
-								break;
-
-							}
-
-						}
-
-						break;
-
-					default:
-
-						if ( targetObject[ objectName ] === undefined ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );
-							return;
-
-						}
-
-						targetObject = targetObject[ objectName ];
-
-				}
-
-
-				if ( objectIndex !== undefined ) {
-
-					if ( targetObject[ objectIndex ] === undefined ) {
-
-						console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );
-						return;
-
-					}
-
-					targetObject = targetObject[ objectIndex ];
-
-				}
-
-			}
-
-			// resolve property
-			var nodeProperty = targetObject[ propertyName ];
-
-			if ( nodeProperty === undefined ) {
-
-				var nodeName = parsedPath.nodeName;
-
-				console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +
-					'.' + propertyName + ' but it wasn\'t found.', targetObject );
-				return;
-
-			}
-
-			// determine versioning scheme
-			var versioning = this.Versioning.None;
-
-			this.targetObject = targetObject;
-
-			if ( targetObject.needsUpdate !== undefined ) { // material
-
-				versioning = this.Versioning.NeedsUpdate;
-
-			} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform
-
-				versioning = this.Versioning.MatrixWorldNeedsUpdate;
-
-			}
-
-			// determine how the property gets bound
-			var bindingType = this.BindingType.Direct;
-
-			if ( propertyIndex !== undefined ) {
-
-				// access a sub element of the property array (only primitives are supported right now)
-
-				if ( propertyName === "morphTargetInfluences" ) {
-
-					// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.
-
-					// support resolving morphTarget names into indices.
-					if ( ! targetObject.geometry ) {
-
-						console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );
-						return;
-
-					}
-
-					if ( targetObject.geometry.isBufferGeometry ) {
-
-						if ( ! targetObject.geometry.morphAttributes ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );
-							return;
-
-						}
-
-						for ( var i = 0; i < this.node.geometry.morphAttributes.position.length; i ++ ) {
-
-							if ( targetObject.geometry.morphAttributes.position[ i ].name === propertyIndex ) {
-
-								propertyIndex = i;
-								break;
-
-							}
-
-						}
-
-
-					} else {
-
-						if ( ! targetObject.geometry.morphTargets ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.', this );
-							return;
-
-						}
-
-						for ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {
-
-							if ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) {
-
-								propertyIndex = i;
-								break;
-
-							}
-
-						}
-
-					}
-
-				}
-
-				bindingType = this.BindingType.ArrayElement;
-
-				this.resolvedProperty = nodeProperty;
-				this.propertyIndex = propertyIndex;
-
-			} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {
-
-				// must use copy for Object3D.Euler/Quaternion
-
-				bindingType = this.BindingType.HasFromToArray;
-
-				this.resolvedProperty = nodeProperty;
-
-			} else if ( Array.isArray( nodeProperty ) ) {
-
-				bindingType = this.BindingType.EntireArray;
-
-				this.resolvedProperty = nodeProperty;
-
-			} else {
-
-				this.propertyName = propertyName;
-
-			}
-
-			// select getter / setter
-			this.getValue = this.GetterByBindingType[ bindingType ];
-			this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];
-
-		},
-
-		unbind: function () {
-
-			this.node = null;
-
-			// back to the prototype version of getValue / setValue
-			// note: avoiding to mutate the shape of 'this' via 'delete'
-			this.getValue = this._getValue_unbound;
-			this.setValue = this._setValue_unbound;
-
-		}
-
-	} );
-
-	//!\ DECLARE ALIAS AFTER assign prototype !
-	Object.assign( PropertyBinding.prototype, {
-
-		// initial state of these methods that calls 'bind'
-		_getValue_unbound: PropertyBinding.prototype.getValue,
-		_setValue_unbound: PropertyBinding.prototype.setValue,
-
-	} );
-
-	/**
-	 *
-	 * A group of objects that receives a shared animation state.
-	 *
-	 * Usage:
-	 *
-	 *  - Add objects you would otherwise pass as 'root' to the
-	 *    constructor or the .clipAction method of AnimationMixer.
-	 *
-	 *  - Instead pass this object as 'root'.
-	 *
-	 *  - You can also add and remove objects later when the mixer
-	 *    is running.
-	 *
-	 * Note:
-	 *
-	 *    Objects of this class appear as one object to the mixer,
-	 *    so cache control of the individual objects must be done
-	 *    on the group.
-	 *
-	 * Limitation:
-	 *
-	 *  - The animated properties must be compatible among the
-	 *    all objects in the group.
-	 *
-	 *  - A single property can either be controlled through a
-	 *    target group or directly, but not both.
-	 *
-	 * @author tschw
-	 */
-
-	function AnimationObjectGroup() {
-
-		this.uuid = _Math.generateUUID();
-
-		// cached objects followed by the active ones
-		this._objects = Array.prototype.slice.call( arguments );
-
-		this.nCachedObjects_ = 0; // threshold
-		// note: read by PropertyBinding.Composite
-
-		var indices = {};
-		this._indicesByUUID = indices; // for bookkeeping
-
-		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
-
-			indices[ arguments[ i ].uuid ] = i;
-
-		}
-
-		this._paths = []; // inside: string
-		this._parsedPaths = []; // inside: { we don't care, here }
-		this._bindings = []; // inside: Array< PropertyBinding >
-		this._bindingsIndicesByPath = {}; // inside: indices in these arrays
-
-		var scope = this;
-
-		this.stats = {
-
-			objects: {
-				get total() {
-
-					return scope._objects.length;
-
-				},
-				get inUse() {
-
-					return this.total - scope.nCachedObjects_;
-
-				}
-			},
-			get bindingsPerObject() {
-
-				return scope._bindings.length;
-
-			}
-
-		};
-
-	}
-
-	Object.assign( AnimationObjectGroup.prototype, {
-
-		isAnimationObjectGroup: true,
-
-		add: function () {
-
-			var objects = this._objects,
-				nObjects = objects.length,
-				nCachedObjects = this.nCachedObjects_,
-				indicesByUUID = this._indicesByUUID,
-				paths = this._paths,
-				parsedPaths = this._parsedPaths,
-				bindings = this._bindings,
-				nBindings = bindings.length,
-				knownObject = undefined;
-
-			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
-
-				var object = arguments[ i ],
-					uuid = object.uuid,
-					index = indicesByUUID[ uuid ];
-
-				if ( index === undefined ) {
-
-					// unknown object -> add it to the ACTIVE region
-
-					index = nObjects ++;
-					indicesByUUID[ uuid ] = index;
-					objects.push( object );
-
-					// accounting is done, now do the same for all bindings
-
-					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-						bindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) );
-
-					}
-
-				} else if ( index < nCachedObjects ) {
-
-					knownObject = objects[ index ];
-
-					// move existing object to the ACTIVE region
-
-					var firstActiveIndex = -- nCachedObjects,
-						lastCachedObject = objects[ firstActiveIndex ];
-
-					indicesByUUID[ lastCachedObject.uuid ] = index;
-					objects[ index ] = lastCachedObject;
-
-					indicesByUUID[ uuid ] = firstActiveIndex;
-					objects[ firstActiveIndex ] = object;
-
-					// accounting is done, now do the same for all bindings
-
-					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-						var bindingsForPath = bindings[ j ],
-							lastCached = bindingsForPath[ firstActiveIndex ],
-							binding = bindingsForPath[ index ];
-
-						bindingsForPath[ index ] = lastCached;
-
-						if ( binding === undefined ) {
-
-							// since we do not bother to create new bindings
-							// for objects that are cached, the binding may
-							// or may not exist
-
-							binding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] );
-
-						}
-
-						bindingsForPath[ firstActiveIndex ] = binding;
-
-					}
-
-				} else if ( objects[ index ] !== knownObject ) {
-
-					console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +
-						'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );
-
-				} // else the object is already where we want it to be
-
-			} // for arguments
-
-			this.nCachedObjects_ = nCachedObjects;
-
-		},
-
-		remove: function () {
-
-			var objects = this._objects,
-				nCachedObjects = this.nCachedObjects_,
-				indicesByUUID = this._indicesByUUID,
-				bindings = this._bindings,
-				nBindings = bindings.length;
-
-			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
-
-				var object = arguments[ i ],
-					uuid = object.uuid,
-					index = indicesByUUID[ uuid ];
-
-				if ( index !== undefined && index >= nCachedObjects ) {
-
-					// move existing object into the CACHED region
-
-					var lastCachedIndex = nCachedObjects ++,
-						firstActiveObject = objects[ lastCachedIndex ];
-
-					indicesByUUID[ firstActiveObject.uuid ] = index;
-					objects[ index ] = firstActiveObject;
-
-					indicesByUUID[ uuid ] = lastCachedIndex;
-					objects[ lastCachedIndex ] = object;
-
-					// accounting is done, now do the same for all bindings
-
-					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-						var bindingsForPath = bindings[ j ],
-							firstActive = bindingsForPath[ lastCachedIndex ],
-							binding = bindingsForPath[ index ];
-
-						bindingsForPath[ index ] = firstActive;
-						bindingsForPath[ lastCachedIndex ] = binding;
-
-					}
-
-				}
-
-			} // for arguments
-
-			this.nCachedObjects_ = nCachedObjects;
-
-		},
-
-		// remove & forget
-		uncache: function () {
-
-			var objects = this._objects,
-				nObjects = objects.length,
-				nCachedObjects = this.nCachedObjects_,
-				indicesByUUID = this._indicesByUUID,
-				bindings = this._bindings,
-				nBindings = bindings.length;
-
-			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
-
-				var object = arguments[ i ],
-					uuid = object.uuid,
-					index = indicesByUUID[ uuid ];
-
-				if ( index !== undefined ) {
-
-					delete indicesByUUID[ uuid ];
-
-					if ( index < nCachedObjects ) {
-
-						// object is cached, shrink the CACHED region
-
-						var firstActiveIndex = -- nCachedObjects,
-							lastCachedObject = objects[ firstActiveIndex ],
-							lastIndex = -- nObjects,
-							lastObject = objects[ lastIndex ];
-
-						// last cached object takes this object's place
-						indicesByUUID[ lastCachedObject.uuid ] = index;
-						objects[ index ] = lastCachedObject;
-
-						// last object goes to the activated slot and pop
-						indicesByUUID[ lastObject.uuid ] = firstActiveIndex;
-						objects[ firstActiveIndex ] = lastObject;
-						objects.pop();
-
-						// accounting is done, now do the same for all bindings
-
-						for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-							var bindingsForPath = bindings[ j ],
-								lastCached = bindingsForPath[ firstActiveIndex ],
-								last = bindingsForPath[ lastIndex ];
-
-							bindingsForPath[ index ] = lastCached;
-							bindingsForPath[ firstActiveIndex ] = last;
-							bindingsForPath.pop();
-
-						}
-
-					} else {
-
-						// object is active, just swap with the last and pop
-
-						var lastIndex = -- nObjects,
-							lastObject = objects[ lastIndex ];
-
-						indicesByUUID[ lastObject.uuid ] = index;
-						objects[ index ] = lastObject;
-						objects.pop();
-
-						// accounting is done, now do the same for all bindings
-
-						for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-							var bindingsForPath = bindings[ j ];
-
-							bindingsForPath[ index ] = bindingsForPath[ lastIndex ];
-							bindingsForPath.pop();
-
-						}
-
-					} // cached or active
-
-				} // if object is known
-
-			} // for arguments
-
-			this.nCachedObjects_ = nCachedObjects;
-
-		},
-
-		// Internal interface used by befriended PropertyBinding.Composite:
-
-		subscribe_: function ( path, parsedPath ) {
-
-			// returns an array of bindings for the given path that is changed
-			// according to the contained objects in the group
-
-			var indicesByPath = this._bindingsIndicesByPath,
-				index = indicesByPath[ path ],
-				bindings = this._bindings;
-
-			if ( index !== undefined ) return bindings[ index ];
-
-			var paths = this._paths,
-				parsedPaths = this._parsedPaths,
-				objects = this._objects,
-				nObjects = objects.length,
-				nCachedObjects = this.nCachedObjects_,
-				bindingsForPath = new Array( nObjects );
-
-			index = bindings.length;
-
-			indicesByPath[ path ] = index;
-
-			paths.push( path );
-			parsedPaths.push( parsedPath );
-			bindings.push( bindingsForPath );
-
-			for ( var i = nCachedObjects, n = objects.length; i !== n; ++ i ) {
-
-				var object = objects[ i ];
-				bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );
-
-			}
-
-			return bindingsForPath;
-
-		},
-
-		unsubscribe_: function ( path ) {
-
-			// tells the group to forget about a property path and no longer
-			// update the array previously obtained with 'subscribe_'
-
-			var indicesByPath = this._bindingsIndicesByPath,
-				index = indicesByPath[ path ];
-
-			if ( index !== undefined ) {
-
-				var paths = this._paths,
-					parsedPaths = this._parsedPaths,
-					bindings = this._bindings,
-					lastBindingsIndex = bindings.length - 1,
-					lastBindings = bindings[ lastBindingsIndex ],
-					lastBindingsPath = path[ lastBindingsIndex ];
-
-				indicesByPath[ lastBindingsPath ] = index;
-
-				bindings[ index ] = lastBindings;
-				bindings.pop();
-
-				parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];
-				parsedPaths.pop();
-
-				paths[ index ] = paths[ lastBindingsIndex ];
-				paths.pop();
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * Action provided by AnimationMixer for scheduling clip playback on specific
-	 * objects.
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 *
-	 */
-
-	function AnimationAction( mixer, clip, localRoot ) {
-
-		this._mixer = mixer;
-		this._clip = clip;
-		this._localRoot = localRoot || null;
-
-		var tracks = clip.tracks,
-			nTracks = tracks.length,
-			interpolants = new Array( nTracks );
-
-		var interpolantSettings = {
-			endingStart: ZeroCurvatureEnding,
-			endingEnd: ZeroCurvatureEnding
-		};
-
-		for ( var i = 0; i !== nTracks; ++ i ) {
-
-			var interpolant = tracks[ i ].createInterpolant( null );
-			interpolants[ i ] = interpolant;
-			interpolant.settings = interpolantSettings;
-
-		}
-
-		this._interpolantSettings = interpolantSettings;
-
-		this._interpolants = interpolants; // bound by the mixer
-
-		// inside: PropertyMixer (managed by the mixer)
-		this._propertyBindings = new Array( nTracks );
-
-		this._cacheIndex = null; // for the memory manager
-		this._byClipCacheIndex = null; // for the memory manager
-
-		this._timeScaleInterpolant = null;
-		this._weightInterpolant = null;
-
-		this.loop = LoopRepeat;
-		this._loopCount = - 1;
-
-		// global mixer time when the action is to be started
-		// it's set back to 'null' upon start of the action
-		this._startTime = null;
-
-		// scaled local time of the action
-		// gets clamped or wrapped to 0..clip.duration according to loop
-		this.time = 0;
-
-		this.timeScale = 1;
-		this._effectiveTimeScale = 1;
-
-		this.weight = 1;
-		this._effectiveWeight = 1;
-
-		this.repetitions = Infinity; // no. of repetitions when looping
-
-		this.paused = false; // true -> zero effective time scale
-		this.enabled = true; // false -> zero effective weight
-
-		this.clampWhenFinished = false;// keep feeding the last frame?
-
-		this.zeroSlopeAtStart = true;// for smooth interpolation w/o separate
-		this.zeroSlopeAtEnd = true;// clips for start, loop and end
-
-	}
-
-	Object.assign( AnimationAction.prototype, {
-
-		// State & Scheduling
-
-		play: function () {
-
-			this._mixer._activateAction( this );
-
-			return this;
-
-		},
-
-		stop: function () {
-
-			this._mixer._deactivateAction( this );
-
-			return this.reset();
-
-		},
-
-		reset: function () {
-
-			this.paused = false;
-			this.enabled = true;
-
-			this.time = 0; // restart clip
-			this._loopCount = - 1;// forget previous loops
-			this._startTime = null;// forget scheduling
-
-			return this.stopFading().stopWarping();
-
-		},
-
-		isRunning: function () {
-
-			return this.enabled && ! this.paused && this.timeScale !== 0 &&
-				this._startTime === null && this._mixer._isActiveAction( this );
-
-		},
-
-		// return true when play has been called
-		isScheduled: function () {
-
-			return this._mixer._isActiveAction( this );
-
-		},
-
-		startAt: function ( time ) {
-
-			this._startTime = time;
-
-			return this;
-
-		},
-
-		setLoop: function ( mode, repetitions ) {
-
-			this.loop = mode;
-			this.repetitions = repetitions;
-
-			return this;
-
-		},
-
-		// Weight
-
-		// set the weight stopping any scheduled fading
-		// although .enabled = false yields an effective weight of zero, this
-		// method does *not* change .enabled, because it would be confusing
-		setEffectiveWeight: function ( weight ) {
-
-			this.weight = weight;
-
-			// note: same logic as when updated at runtime
-			this._effectiveWeight = this.enabled ? weight : 0;
-
-			return this.stopFading();
-
-		},
-
-		// return the weight considering fading and .enabled
-		getEffectiveWeight: function () {
-
-			return this._effectiveWeight;
-
-		},
-
-		fadeIn: function ( duration ) {
-
-			return this._scheduleFading( duration, 0, 1 );
-
-		},
-
-		fadeOut: function ( duration ) {
-
-			return this._scheduleFading( duration, 1, 0 );
-
-		},
-
-		crossFadeFrom: function ( fadeOutAction, duration, warp ) {
-
-			fadeOutAction.fadeOut( duration );
-			this.fadeIn( duration );
-
-			if ( warp ) {
-
-				var fadeInDuration = this._clip.duration,
-					fadeOutDuration = fadeOutAction._clip.duration,
-
-					startEndRatio = fadeOutDuration / fadeInDuration,
-					endStartRatio = fadeInDuration / fadeOutDuration;
-
-				fadeOutAction.warp( 1.0, startEndRatio, duration );
-				this.warp( endStartRatio, 1.0, duration );
-
-			}
-
-			return this;
-
-		},
-
-		crossFadeTo: function ( fadeInAction, duration, warp ) {
-
-			return fadeInAction.crossFadeFrom( this, duration, warp );
-
-		},
-
-		stopFading: function () {
-
-			var weightInterpolant = this._weightInterpolant;
-
-			if ( weightInterpolant !== null ) {
-
-				this._weightInterpolant = null;
-				this._mixer._takeBackControlInterpolant( weightInterpolant );
-
-			}
-
-			return this;
-
-		},
-
-		// Time Scale Control
-
-		// set the time scale stopping any scheduled warping
-		// although .paused = true yields an effective time scale of zero, this
-		// method does *not* change .paused, because it would be confusing
-		setEffectiveTimeScale: function ( timeScale ) {
-
-			this.timeScale = timeScale;
-			this._effectiveTimeScale = this.paused ? 0 : timeScale;
-
-			return this.stopWarping();
-
-		},
-
-		// return the time scale considering warping and .paused
-		getEffectiveTimeScale: function () {
-
-			return this._effectiveTimeScale;
-
-		},
-
-		setDuration: function ( duration ) {
-
-			this.timeScale = this._clip.duration / duration;
-
-			return this.stopWarping();
-
-		},
-
-		syncWith: function ( action ) {
-
-			this.time = action.time;
-			this.timeScale = action.timeScale;
-
-			return this.stopWarping();
-
-		},
-
-		halt: function ( duration ) {
-
-			return this.warp( this._effectiveTimeScale, 0, duration );
-
-		},
-
-		warp: function ( startTimeScale, endTimeScale, duration ) {
-
-			var mixer = this._mixer, now = mixer.time,
-				interpolant = this._timeScaleInterpolant,
-
-				timeScale = this.timeScale;
-
-			if ( interpolant === null ) {
-
-				interpolant = mixer._lendControlInterpolant();
-				this._timeScaleInterpolant = interpolant;
-
-			}
-
-			var times = interpolant.parameterPositions,
-				values = interpolant.sampleValues;
-
-			times[ 0 ] = now;
-			times[ 1 ] = now + duration;
-
-			values[ 0 ] = startTimeScale / timeScale;
-			values[ 1 ] = endTimeScale / timeScale;
-
-			return this;
-
-		},
-
-		stopWarping: function () {
-
-			var timeScaleInterpolant = this._timeScaleInterpolant;
-
-			if ( timeScaleInterpolant !== null ) {
-
-				this._timeScaleInterpolant = null;
-				this._mixer._takeBackControlInterpolant( timeScaleInterpolant );
-
-			}
-
-			return this;
-
-		},
-
-		// Object Accessors
-
-		getMixer: function () {
-
-			return this._mixer;
-
-		},
-
-		getClip: function () {
-
-			return this._clip;
-
-		},
-
-		getRoot: function () {
-
-			return this._localRoot || this._mixer._root;
-
-		},
-
-		// Interna
-
-		_update: function ( time, deltaTime, timeDirection, accuIndex ) {
-
-			// called by the mixer
-
-			if ( ! this.enabled ) {
-
-				// call ._updateWeight() to update ._effectiveWeight
-
-				this._updateWeight( time );
-				return;
-
-			}
-
-			var startTime = this._startTime;
-
-			if ( startTime !== null ) {
-
-				// check for scheduled start of action
-
-				var timeRunning = ( time - startTime ) * timeDirection;
-				if ( timeRunning < 0 || timeDirection === 0 ) {
-
-					return; // yet to come / don't decide when delta = 0
-
-				}
-
-				// start
-
-				this._startTime = null; // unschedule
-				deltaTime = timeDirection * timeRunning;
-
-			}
-
-			// apply time scale and advance time
-
-			deltaTime *= this._updateTimeScale( time );
-			var clipTime = this._updateTime( deltaTime );
-
-			// note: _updateTime may disable the action resulting in
-			// an effective weight of 0
-
-			var weight = this._updateWeight( time );
-
-			if ( weight > 0 ) {
-
-				var interpolants = this._interpolants;
-				var propertyMixers = this._propertyBindings;
-
-				for ( var j = 0, m = interpolants.length; j !== m; ++ j ) {
-
-					interpolants[ j ].evaluate( clipTime );
-					propertyMixers[ j ].accumulate( accuIndex, weight );
-
-				}
-
-			}
-
-		},
-
-		_updateWeight: function ( time ) {
-
-			var weight = 0;
-
-			if ( this.enabled ) {
-
-				weight = this.weight;
-				var interpolant = this._weightInterpolant;
-
-				if ( interpolant !== null ) {
-
-					var interpolantValue = interpolant.evaluate( time )[ 0 ];
-
-					weight *= interpolantValue;
-
-					if ( time > interpolant.parameterPositions[ 1 ] ) {
-
-						this.stopFading();
-
-						if ( interpolantValue === 0 ) {
-
-							// faded out, disable
-							this.enabled = false;
-
-						}
-
-					}
-
-				}
-
-			}
-
-			this._effectiveWeight = weight;
-			return weight;
-
-		},
-
-		_updateTimeScale: function ( time ) {
-
-			var timeScale = 0;
-
-			if ( ! this.paused ) {
-
-				timeScale = this.timeScale;
-
-				var interpolant = this._timeScaleInterpolant;
-
-				if ( interpolant !== null ) {
-
-					var interpolantValue = interpolant.evaluate( time )[ 0 ];
-
-					timeScale *= interpolantValue;
-
-					if ( time > interpolant.parameterPositions[ 1 ] ) {
-
-						this.stopWarping();
-
-						if ( timeScale === 0 ) {
-
-							// motion has halted, pause
-							this.paused = true;
-
-						} else {
-
-							// warp done - apply final time scale
-							this.timeScale = timeScale;
-
-						}
-
-					}
-
-				}
-
-			}
-
-			this._effectiveTimeScale = timeScale;
-			return timeScale;
-
-		},
-
-		_updateTime: function ( deltaTime ) {
-
-			var time = this.time + deltaTime;
-			var duration = this._clip.duration;
-			var loop = this.loop;
-			var loopCount = this._loopCount;
-
-			var pingPong = ( loop === LoopPingPong );
-
-			if ( deltaTime === 0 ) {
-
-				if ( loopCount === - 1 ) return time;
-
-				return ( pingPong && ( loopCount & 1 ) === 1 ) ? duration - time : time;
-
-			}
-
-			if ( loop === LoopOnce ) {
-
-				if ( loopCount === - 1 ) {
-
-					// just started
-
-					this._loopCount = 0;
-					this._setEndings( true, true, false );
-
-				}
-
-				handle_stop: {
-
-					if ( time >= duration ) {
-
-						time = duration;
-
-					} else if ( time < 0 ) {
-
-						time = 0;
-
-					} else {
-
-						this.time = time;
-
-						break handle_stop;
-
-					}
-
-					if ( this.clampWhenFinished ) this.paused = true;
-					else this.enabled = false;
-
-					this.time = time;
-
-					this._mixer.dispatchEvent( {
-						type: 'finished', action: this,
-						direction: deltaTime < 0 ? - 1 : 1
-					} );
-
-				}
-
-			} else { // repetitive Repeat or PingPong
-
-				if ( loopCount === - 1 ) {
-
-					// just started
-
-					if ( deltaTime >= 0 ) {
-
-						loopCount = 0;
-
-						this._setEndings( true, this.repetitions === 0, pingPong );
-
-					} else {
-
-						// when looping in reverse direction, the initial
-						// transition through zero counts as a repetition,
-						// so leave loopCount at -1
-
-						this._setEndings( this.repetitions === 0, true, pingPong );
-
-					}
-
-				}
-
-				if ( time >= duration || time < 0 ) {
-
-					// wrap around
-
-					var loopDelta = Math.floor( time / duration ); // signed
-					time -= duration * loopDelta;
-
-					loopCount += Math.abs( loopDelta );
-
-					var pending = this.repetitions - loopCount;
-
-					if ( pending <= 0 ) {
-
-						// have to stop (switch state, clamp time, fire event)
-
-						if ( this.clampWhenFinished ) this.paused = true;
-						else this.enabled = false;
-
-						time = deltaTime > 0 ? duration : 0;
-
-						this.time = time;
-
-						this._mixer.dispatchEvent( {
-							type: 'finished', action: this,
-							direction: deltaTime > 0 ? 1 : - 1
-						} );
-
-					} else {
-
-						// keep running
-
-						if ( pending === 1 ) {
-
-							// entering the last round
-
-							var atStart = deltaTime < 0;
-							this._setEndings( atStart, ! atStart, pingPong );
-
-						} else {
-
-							this._setEndings( false, false, pingPong );
-
-						}
-
-						this._loopCount = loopCount;
-
-						this.time = time;
-
-						this._mixer.dispatchEvent( {
-							type: 'loop', action: this, loopDelta: loopDelta
-						} );
-
-					}
-
-				} else {
-
-					this.time = time;
-
-				}
-
-				if ( pingPong && ( loopCount & 1 ) === 1 ) {
-
-					// invert time for the "pong round"
-
-					return duration - time;
-
-				}
-
-			}
-
-			return time;
-
-		},
-
-		_setEndings: function ( atStart, atEnd, pingPong ) {
-
-			var settings = this._interpolantSettings;
-
-			if ( pingPong ) {
-
-				settings.endingStart = ZeroSlopeEnding;
-				settings.endingEnd = ZeroSlopeEnding;
-
-			} else {
-
-				// assuming for LoopOnce atStart == atEnd == true
-
-				if ( atStart ) {
-
-					settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;
-
-				} else {
-
-					settings.endingStart = WrapAroundEnding;
-
-				}
-
-				if ( atEnd ) {
-
-					settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;
-
-				} else {
-
-					settings.endingEnd 	 = WrapAroundEnding;
-
-				}
-
-			}
-
-		},
-
-		_scheduleFading: function ( duration, weightNow, weightThen ) {
-
-			var mixer = this._mixer, now = mixer.time,
-				interpolant = this._weightInterpolant;
-
-			if ( interpolant === null ) {
-
-				interpolant = mixer._lendControlInterpolant();
-				this._weightInterpolant = interpolant;
-
-			}
-
-			var times = interpolant.parameterPositions,
-				values = interpolant.sampleValues;
-
-			times[ 0 ] = now;
-			values[ 0 ] = weightNow;
-			times[ 1 ] = now + duration;
-			values[ 1 ] = weightThen;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * Player for AnimationClips.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function AnimationMixer( root ) {
-
-		this._root = root;
-		this._initMemoryManager();
-		this._accuIndex = 0;
-
-		this.time = 0;
-
-		this.timeScale = 1.0;
-
-	}
-
-	AnimationMixer.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: AnimationMixer,
-
-		_bindAction: function ( action, prototypeAction ) {
-
-			var root = action._localRoot || this._root,
-				tracks = action._clip.tracks,
-				nTracks = tracks.length,
-				bindings = action._propertyBindings,
-				interpolants = action._interpolants,
-				rootUuid = root.uuid,
-				bindingsByRoot = this._bindingsByRootAndName,
-				bindingsByName = bindingsByRoot[ rootUuid ];
-
-			if ( bindingsByName === undefined ) {
-
-				bindingsByName = {};
-				bindingsByRoot[ rootUuid ] = bindingsByName;
-
-			}
-
-			for ( var i = 0; i !== nTracks; ++ i ) {
-
-				var track = tracks[ i ],
-					trackName = track.name,
-					binding = bindingsByName[ trackName ];
-
-				if ( binding !== undefined ) {
-
-					bindings[ i ] = binding;
-
-				} else {
-
-					binding = bindings[ i ];
-
-					if ( binding !== undefined ) {
-
-						// existing binding, make sure the cache knows
-
-						if ( binding._cacheIndex === null ) {
-
-							++ binding.referenceCount;
-							this._addInactiveBinding( binding, rootUuid, trackName );
-
-						}
-
-						continue;
-
-					}
-
-					var path = prototypeAction && prototypeAction.
-						_propertyBindings[ i ].binding.parsedPath;
-
-					binding = new PropertyMixer(
-						PropertyBinding.create( root, trackName, path ),
-						track.ValueTypeName, track.getValueSize() );
-
-					++ binding.referenceCount;
-					this._addInactiveBinding( binding, rootUuid, trackName );
-
-					bindings[ i ] = binding;
-
-				}
-
-				interpolants[ i ].resultBuffer = binding.buffer;
-
-			}
-
-		},
-
-		_activateAction: function ( action ) {
-
-			if ( ! this._isActiveAction( action ) ) {
-
-				if ( action._cacheIndex === null ) {
-
-					// this action has been forgotten by the cache, but the user
-					// appears to be still using it -> rebind
-
-					var rootUuid = ( action._localRoot || this._root ).uuid,
-						clipUuid = action._clip.uuid,
-						actionsForClip = this._actionsByClip[ clipUuid ];
-
-					this._bindAction( action,
-						actionsForClip && actionsForClip.knownActions[ 0 ] );
-
-					this._addInactiveAction( action, clipUuid, rootUuid );
-
-				}
-
-				var bindings = action._propertyBindings;
-
-				// increment reference counts / sort out state
-				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
-
-					var binding = bindings[ i ];
-
-					if ( binding.useCount ++ === 0 ) {
-
-						this._lendBinding( binding );
-						binding.saveOriginalState();
-
-					}
-
-				}
-
-				this._lendAction( action );
-
-			}
-
-		},
-
-		_deactivateAction: function ( action ) {
-
-			if ( this._isActiveAction( action ) ) {
-
-				var bindings = action._propertyBindings;
-
-				// decrement reference counts / sort out state
-				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
-
-					var binding = bindings[ i ];
-
-					if ( -- binding.useCount === 0 ) {
-
-						binding.restoreOriginalState();
-						this._takeBackBinding( binding );
-
-					}
-
-				}
-
-				this._takeBackAction( action );
-
-			}
-
-		},
-
-		// Memory manager
-
-		_initMemoryManager: function () {
-
-			this._actions = []; // 'nActiveActions' followed by inactive ones
-			this._nActiveActions = 0;
-
-			this._actionsByClip = {};
-			// inside:
-			// {
-			// 	knownActions: Array< AnimationAction > - used as prototypes
-			// 	actionByRoot: AnimationAction - lookup
-			// }
-
-
-			this._bindings = []; // 'nActiveBindings' followed by inactive ones
-			this._nActiveBindings = 0;
-
-			this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >
-
-
-			this._controlInterpolants = []; // same game as above
-			this._nActiveControlInterpolants = 0;
-
-			var scope = this;
-
-			this.stats = {
-
-				actions: {
-					get total() {
-
-						return scope._actions.length;
-
-					},
-					get inUse() {
-
-						return scope._nActiveActions;
-
-					}
-				},
-				bindings: {
-					get total() {
-
-						return scope._bindings.length;
-
-					},
-					get inUse() {
-
-						return scope._nActiveBindings;
-
-					}
-				},
-				controlInterpolants: {
-					get total() {
-
-						return scope._controlInterpolants.length;
-
-					},
-					get inUse() {
-
-						return scope._nActiveControlInterpolants;
-
-					}
-				}
-
-			};
-
-		},
-
-		// Memory management for AnimationAction objects
-
-		_isActiveAction: function ( action ) {
-
-			var index = action._cacheIndex;
-			return index !== null && index < this._nActiveActions;
-
-		},
-
-		_addInactiveAction: function ( action, clipUuid, rootUuid ) {
-
-			var actions = this._actions,
-				actionsByClip = this._actionsByClip,
-				actionsForClip = actionsByClip[ clipUuid ];
-
-			if ( actionsForClip === undefined ) {
-
-				actionsForClip = {
-
-					knownActions: [ action ],
-					actionByRoot: {}
-
-				};
-
-				action._byClipCacheIndex = 0;
-
-				actionsByClip[ clipUuid ] = actionsForClip;
-
-			} else {
-
-				var knownActions = actionsForClip.knownActions;
-
-				action._byClipCacheIndex = knownActions.length;
-				knownActions.push( action );
-
-			}
-
-			action._cacheIndex = actions.length;
-			actions.push( action );
-
-			actionsForClip.actionByRoot[ rootUuid ] = action;
-
-		},
-
-		_removeInactiveAction: function ( action ) {
-
-			var actions = this._actions,
-				lastInactiveAction = actions[ actions.length - 1 ],
-				cacheIndex = action._cacheIndex;
-
-			lastInactiveAction._cacheIndex = cacheIndex;
-			actions[ cacheIndex ] = lastInactiveAction;
-			actions.pop();
-
-			action._cacheIndex = null;
-
-
-			var clipUuid = action._clip.uuid,
-				actionsByClip = this._actionsByClip,
-				actionsForClip = actionsByClip[ clipUuid ],
-				knownActionsForClip = actionsForClip.knownActions,
-
-				lastKnownAction =
-					knownActionsForClip[ knownActionsForClip.length - 1 ],
-
-				byClipCacheIndex = action._byClipCacheIndex;
-
-			lastKnownAction._byClipCacheIndex = byClipCacheIndex;
-			knownActionsForClip[ byClipCacheIndex ] = lastKnownAction;
-			knownActionsForClip.pop();
-
-			action._byClipCacheIndex = null;
-
-
-			var actionByRoot = actionsForClip.actionByRoot,
-				rootUuid = ( action._localRoot || this._root ).uuid;
-
-			delete actionByRoot[ rootUuid ];
-
-			if ( knownActionsForClip.length === 0 ) {
-
-				delete actionsByClip[ clipUuid ];
-
-			}
-
-			this._removeInactiveBindingsForAction( action );
-
-		},
-
-		_removeInactiveBindingsForAction: function ( action ) {
-
-			var bindings = action._propertyBindings;
-			for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
-
-				var binding = bindings[ i ];
-
-				if ( -- binding.referenceCount === 0 ) {
-
-					this._removeInactiveBinding( binding );
-
-				}
-
-			}
-
-		},
-
-		_lendAction: function ( action ) {
-
-			// [ active actions |  inactive actions  ]
-			// [  active actions >| inactive actions ]
-			//                 s        a
-			//                  <-swap->
-			//                 a        s
-
-			var actions = this._actions,
-				prevIndex = action._cacheIndex,
-
-				lastActiveIndex = this._nActiveActions ++,
-
-				firstInactiveAction = actions[ lastActiveIndex ];
-
-			action._cacheIndex = lastActiveIndex;
-			actions[ lastActiveIndex ] = action;
-
-			firstInactiveAction._cacheIndex = prevIndex;
-			actions[ prevIndex ] = firstInactiveAction;
-
-		},
-
-		_takeBackAction: function ( action ) {
-
-			// [  active actions  | inactive actions ]
-			// [ active actions |< inactive actions  ]
-			//        a        s
-			//         <-swap->
-			//        s        a
-
-			var actions = this._actions,
-				prevIndex = action._cacheIndex,
-
-				firstInactiveIndex = -- this._nActiveActions,
-
-				lastActiveAction = actions[ firstInactiveIndex ];
-
-			action._cacheIndex = firstInactiveIndex;
-			actions[ firstInactiveIndex ] = action;
-
-			lastActiveAction._cacheIndex = prevIndex;
-			actions[ prevIndex ] = lastActiveAction;
-
-		},
-
-		// Memory management for PropertyMixer objects
-
-		_addInactiveBinding: function ( binding, rootUuid, trackName ) {
-
-			var bindingsByRoot = this._bindingsByRootAndName,
-				bindingByName = bindingsByRoot[ rootUuid ],
-
-				bindings = this._bindings;
-
-			if ( bindingByName === undefined ) {
-
-				bindingByName = {};
-				bindingsByRoot[ rootUuid ] = bindingByName;
-
-			}
-
-			bindingByName[ trackName ] = binding;
-
-			binding._cacheIndex = bindings.length;
-			bindings.push( binding );
-
-		},
-
-		_removeInactiveBinding: function ( binding ) {
-
-			var bindings = this._bindings,
-				propBinding = binding.binding,
-				rootUuid = propBinding.rootNode.uuid,
-				trackName = propBinding.path,
-				bindingsByRoot = this._bindingsByRootAndName,
-				bindingByName = bindingsByRoot[ rootUuid ],
-
-				lastInactiveBinding = bindings[ bindings.length - 1 ],
-				cacheIndex = binding._cacheIndex;
-
-			lastInactiveBinding._cacheIndex = cacheIndex;
-			bindings[ cacheIndex ] = lastInactiveBinding;
-			bindings.pop();
-
-			delete bindingByName[ trackName ];
-
-			remove_empty_map: {
-
-				for ( var _ in bindingByName ) break remove_empty_map; // eslint-disable-line no-unused-vars
-
-				delete bindingsByRoot[ rootUuid ];
-
-			}
-
-		},
-
-		_lendBinding: function ( binding ) {
-
-			var bindings = this._bindings,
-				prevIndex = binding._cacheIndex,
-
-				lastActiveIndex = this._nActiveBindings ++,
-
-				firstInactiveBinding = bindings[ lastActiveIndex ];
-
-			binding._cacheIndex = lastActiveIndex;
-			bindings[ lastActiveIndex ] = binding;
-
-			firstInactiveBinding._cacheIndex = prevIndex;
-			bindings[ prevIndex ] = firstInactiveBinding;
-
-		},
-
-		_takeBackBinding: function ( binding ) {
-
-			var bindings = this._bindings,
-				prevIndex = binding._cacheIndex,
-
-				firstInactiveIndex = -- this._nActiveBindings,
-
-				lastActiveBinding = bindings[ firstInactiveIndex ];
-
-			binding._cacheIndex = firstInactiveIndex;
-			bindings[ firstInactiveIndex ] = binding;
-
-			lastActiveBinding._cacheIndex = prevIndex;
-			bindings[ prevIndex ] = lastActiveBinding;
-
-		},
-
-
-		// Memory management of Interpolants for weight and time scale
-
-		_lendControlInterpolant: function () {
-
-			var interpolants = this._controlInterpolants,
-				lastActiveIndex = this._nActiveControlInterpolants ++,
-				interpolant = interpolants[ lastActiveIndex ];
-
-			if ( interpolant === undefined ) {
-
-				interpolant = new LinearInterpolant(
-					new Float32Array( 2 ), new Float32Array( 2 ),
-					1, this._controlInterpolantsResultBuffer );
-
-				interpolant.__cacheIndex = lastActiveIndex;
-				interpolants[ lastActiveIndex ] = interpolant;
-
-			}
-
-			return interpolant;
-
-		},
-
-		_takeBackControlInterpolant: function ( interpolant ) {
-
-			var interpolants = this._controlInterpolants,
-				prevIndex = interpolant.__cacheIndex,
-
-				firstInactiveIndex = -- this._nActiveControlInterpolants,
-
-				lastActiveInterpolant = interpolants[ firstInactiveIndex ];
-
-			interpolant.__cacheIndex = firstInactiveIndex;
-			interpolants[ firstInactiveIndex ] = interpolant;
-
-			lastActiveInterpolant.__cacheIndex = prevIndex;
-			interpolants[ prevIndex ] = lastActiveInterpolant;
-
-		},
-
-		_controlInterpolantsResultBuffer: new Float32Array( 1 ),
-
-		// return an action for a clip optionally using a custom root target
-		// object (this method allocates a lot of dynamic memory in case a
-		// previously unknown clip/root combination is specified)
-		clipAction: function ( clip, optionalRoot ) {
-
-			var root = optionalRoot || this._root,
-				rootUuid = root.uuid,
-
-				clipObject = typeof clip === 'string' ?
-					AnimationClip.findByName( root, clip ) : clip,
-
-				clipUuid = clipObject !== null ? clipObject.uuid : clip,
-
-				actionsForClip = this._actionsByClip[ clipUuid ],
-				prototypeAction = null;
-
-			if ( actionsForClip !== undefined ) {
-
-				var existingAction =
-						actionsForClip.actionByRoot[ rootUuid ];
-
-				if ( existingAction !== undefined ) {
-
-					return existingAction;
-
-				}
-
-				// we know the clip, so we don't have to parse all
-				// the bindings again but can just copy
-				prototypeAction = actionsForClip.knownActions[ 0 ];
-
-				// also, take the clip from the prototype action
-				if ( clipObject === null )
-					clipObject = prototypeAction._clip;
-
-			}
-
-			// clip must be known when specified via string
-			if ( clipObject === null ) return null;
-
-			// allocate all resources required to run it
-			var newAction = new AnimationAction( this, clipObject, optionalRoot );
-
-			this._bindAction( newAction, prototypeAction );
-
-			// and make the action known to the memory manager
-			this._addInactiveAction( newAction, clipUuid, rootUuid );
-
-			return newAction;
-
-		},
-
-		// get an existing action
-		existingAction: function ( clip, optionalRoot ) {
-
-			var root = optionalRoot || this._root,
-				rootUuid = root.uuid,
-
-				clipObject = typeof clip === 'string' ?
-					AnimationClip.findByName( root, clip ) : clip,
-
-				clipUuid = clipObject ? clipObject.uuid : clip,
-
-				actionsForClip = this._actionsByClip[ clipUuid ];
-
-			if ( actionsForClip !== undefined ) {
-
-				return actionsForClip.actionByRoot[ rootUuid ] || null;
-
-			}
-
-			return null;
-
-		},
-
-		// deactivates all previously scheduled actions
-		stopAllAction: function () {
-
-			var actions = this._actions,
-				nActions = this._nActiveActions,
-				bindings = this._bindings,
-				nBindings = this._nActiveBindings;
-
-			this._nActiveActions = 0;
-			this._nActiveBindings = 0;
-
-			for ( var i = 0; i !== nActions; ++ i ) {
-
-				actions[ i ].reset();
-
-			}
-
-			for ( var i = 0; i !== nBindings; ++ i ) {
-
-				bindings[ i ].useCount = 0;
-
-			}
-
-			return this;
-
-		},
-
-		// advance the time and update apply the animation
-		update: function ( deltaTime ) {
-
-			deltaTime *= this.timeScale;
-
-			var actions = this._actions,
-				nActions = this._nActiveActions,
-
-				time = this.time += deltaTime,
-				timeDirection = Math.sign( deltaTime ),
-
-				accuIndex = this._accuIndex ^= 1;
-
-			// run active actions
-
-			for ( var i = 0; i !== nActions; ++ i ) {
-
-				var action = actions[ i ];
-
-				action._update( time, deltaTime, timeDirection, accuIndex );
-
-			}
-
-			// update scene graph
-
-			var bindings = this._bindings,
-				nBindings = this._nActiveBindings;
-
-			for ( var i = 0; i !== nBindings; ++ i ) {
-
-				bindings[ i ].apply( accuIndex );
-
-			}
-
-			return this;
-
-		},
-
-		// return this mixer's root target object
-		getRoot: function () {
-
-			return this._root;
-
-		},
-
-		// free all resources specific to a particular clip
-		uncacheClip: function ( clip ) {
-
-			var actions = this._actions,
-				clipUuid = clip.uuid,
-				actionsByClip = this._actionsByClip,
-				actionsForClip = actionsByClip[ clipUuid ];
-
-			if ( actionsForClip !== undefined ) {
-
-				// note: just calling _removeInactiveAction would mess up the
-				// iteration state and also require updating the state we can
-				// just throw away
-
-				var actionsToRemove = actionsForClip.knownActions;
-
-				for ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {
-
-					var action = actionsToRemove[ i ];
-
-					this._deactivateAction( action );
-
-					var cacheIndex = action._cacheIndex,
-						lastInactiveAction = actions[ actions.length - 1 ];
-
-					action._cacheIndex = null;
-					action._byClipCacheIndex = null;
-
-					lastInactiveAction._cacheIndex = cacheIndex;
-					actions[ cacheIndex ] = lastInactiveAction;
-					actions.pop();
-
-					this._removeInactiveBindingsForAction( action );
-
-				}
-
-				delete actionsByClip[ clipUuid ];
-
-			}
-
-		},
-
-		// free all resources specific to a particular root target object
-		uncacheRoot: function ( root ) {
-
-			var rootUuid = root.uuid,
-				actionsByClip = this._actionsByClip;
-
-			for ( var clipUuid in actionsByClip ) {
-
-				var actionByRoot = actionsByClip[ clipUuid ].actionByRoot,
-					action = actionByRoot[ rootUuid ];
-
-				if ( action !== undefined ) {
-
-					this._deactivateAction( action );
-					this._removeInactiveAction( action );
-
-				}
-
-			}
-
-			var bindingsByRoot = this._bindingsByRootAndName,
-				bindingByName = bindingsByRoot[ rootUuid ];
-
-			if ( bindingByName !== undefined ) {
-
-				for ( var trackName in bindingByName ) {
-
-					var binding = bindingByName[ trackName ];
-					binding.restoreOriginalState();
-					this._removeInactiveBinding( binding );
-
-				}
-
-			}
-
-		},
-
-		// remove a targeted clip from the cache
-		uncacheAction: function ( clip, optionalRoot ) {
-
-			var action = this.existingAction( clip, optionalRoot );
-
-			if ( action !== null ) {
-
-				this._deactivateAction( action );
-				this._removeInactiveAction( action );
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Uniform( value ) {
-
-		if ( typeof value === 'string' ) {
-
-			console.warn( 'THREE.Uniform: Type parameter is no longer needed.' );
-			value = arguments[ 1 ];
-
-		}
-
-		this.value = value;
-
-	}
-
-	Uniform.prototype.clone = function () {
-
-		return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );
-
-	};
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InstancedInterleavedBuffer( array, stride, meshPerAttribute ) {
-
-		InterleavedBuffer.call( this, array, stride );
-
-		this.meshPerAttribute = meshPerAttribute || 1;
-
-	}
-
-	InstancedInterleavedBuffer.prototype = Object.assign( Object.create( InterleavedBuffer.prototype ), {
-
-		constructor: InstancedInterleavedBuffer,
-
-		isInstancedInterleavedBuffer: true,
-
-		copy: function ( source ) {
-
-			InterleavedBuffer.prototype.copy.call( this, source );
-
-			this.meshPerAttribute = source.meshPerAttribute;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author bhouston / http://clara.io/
-	 * @author stephomi / http://stephaneginier.com/
-	 */
-
-	function Raycaster( origin, direction, near, far ) {
-
-		this.ray = new Ray( origin, direction );
-		// direction is assumed to be normalized (for accurate distance calculations)
-
-		this.near = near || 0;
-		this.far = far || Infinity;
-
-		this.params = {
-			Mesh: {},
-			Line: {},
-			LOD: {},
-			Points: { threshold: 1 },
-			Sprite: {}
-		};
-
-		Object.defineProperties( this.params, {
-			PointCloud: {
-				get: function () {
-
-					console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );
-					return this.Points;
-
-				}
-			}
-		} );
-
-	}
-
-	function ascSort( a, b ) {
-
-		return a.distance - b.distance;
-
-	}
-
-	function intersectObject( object, raycaster, intersects, recursive ) {
-
-		if ( object.visible === false ) return;
-
-		object.raycast( raycaster, intersects );
-
-		if ( recursive === true ) {
-
-			var children = object.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				intersectObject( children[ i ], raycaster, intersects, true );
-
-			}
-
-		}
-
-	}
-
-	Object.assign( Raycaster.prototype, {
-
-		linePrecision: 1,
-
-		set: function ( origin, direction ) {
-
-			// direction is assumed to be normalized (for accurate distance calculations)
-
-			this.ray.set( origin, direction );
-
-		},
-
-		setFromCamera: function ( coords, camera ) {
-
-			if ( ( camera && camera.isPerspectiveCamera ) ) {
-
-				this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
-				this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();
-
-			} else if ( ( camera && camera.isOrthographicCamera ) ) {
-
-				this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera
-				this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );
-
-			} else {
-
-				console.error( 'THREE.Raycaster: Unsupported camera type.' );
-
-			}
-
-		},
-
-		intersectObject: function ( object, recursive, optionalTarget ) {
-
-			var intersects = optionalTarget || [];
-
-			intersectObject( object, this, intersects, recursive );
-
-			intersects.sort( ascSort );
-
-			return intersects;
-
-		},
-
-		intersectObjects: function ( objects, recursive, optionalTarget ) {
-
-			var intersects = optionalTarget || [];
-
-			if ( Array.isArray( objects ) === false ) {
-
-				console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );
-				return intersects;
-
-			}
-
-			for ( var i = 0, l = objects.length; i < l; i ++ ) {
-
-				intersectObject( objects[ i ], this, intersects, recursive );
-
-			}
-
-			intersects.sort( ascSort );
-
-			return intersects;
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
-	 *
-	 * The polar angle (phi) is measured from the positive y-axis. The positive y-axis is up.
-	 * The azimuthal angle (theta) is measured from the positive z-axiz.
-	 */
-
-	function Spherical( radius, phi, theta ) {
-
-		this.radius = ( radius !== undefined ) ? radius : 1.0;
-		this.phi = ( phi !== undefined ) ? phi : 0; // polar angle
-		this.theta = ( theta !== undefined ) ? theta : 0; // azimuthal angle
-
-		return this;
-
-	}
-
-	Object.assign( Spherical.prototype, {
-
-		set: function ( radius, phi, theta ) {
-
-			this.radius = radius;
-			this.phi = phi;
-			this.theta = theta;
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( other ) {
-
-			this.radius = other.radius;
-			this.phi = other.phi;
-			this.theta = other.theta;
-
-			return this;
-
-		},
-
-		// restrict phi to be betwee EPS and PI-EPS
-		makeSafe: function () {
-
-			var EPS = 0.000001;
-			this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );
-
-			return this;
-
-		},
-
-		setFromVector3: function ( v ) {
-
-			return this.setFromCartesianCoords( v.x, v.y, v.z );
-
-		},
-
-		setFromCartesianCoords: function ( x, y, z ) {
-
-			this.radius = Math.sqrt( x * x + y * y + z * z );
-
-			if ( this.radius === 0 ) {
-
-				this.theta = 0;
-				this.phi = 0;
-
-			} else {
-
-				this.theta = Math.atan2( x, z );
-				this.phi = Math.acos( _Math.clamp( y / this.radius, - 1, 1 ) );
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
-	 *
-	 */
-
-	function Cylindrical( radius, theta, y ) {
-
-		this.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane
-		this.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
-		this.y = ( y !== undefined ) ? y : 0; // height above the x-z plane
-
-		return this;
-
-	}
-
-	Object.assign( Cylindrical.prototype, {
-
-		set: function ( radius, theta, y ) {
-
-			this.radius = radius;
-			this.theta = theta;
-			this.y = y;
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( other ) {
-
-			this.radius = other.radius;
-			this.theta = other.theta;
-			this.y = other.y;
-
-			return this;
-
-		},
-
-		setFromVector3: function ( v ) {
-
-			return this.setFromCartesianCoords( v.x, v.y, v.z );
-
-		},
-
-		setFromCartesianCoords: function ( x, y, z ) {
-
-			this.radius = Math.sqrt( x * x + z * z );
-			this.theta = Math.atan2( x, z );
-			this.y = y;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Box2( min, max ) {
-
-		this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );
-		this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );
-
-	}
-
-	Object.assign( Box2.prototype, {
-
-		set: function ( min, max ) {
-
-			this.min.copy( min );
-			this.max.copy( max );
-
-			return this;
-
-		},
-
-		setFromPoints: function ( points ) {
-
-			this.makeEmpty();
-
-			for ( var i = 0, il = points.length; i < il; i ++ ) {
-
-				this.expandByPoint( points[ i ] );
-
-			}
-
-			return this;
-
-		},
-
-		setFromCenterAndSize: function () {
-
-			var v1 = new Vector2();
-
-			return function setFromCenterAndSize( center, size ) {
-
-				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
-				this.min.copy( center ).sub( halfSize );
-				this.max.copy( center ).add( halfSize );
-
-				return this;
-
-			};
-
-		}(),
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( box ) {
-
-			this.min.copy( box.min );
-			this.max.copy( box.max );
-
-			return this;
-
-		},
-
-		makeEmpty: function () {
-
-			this.min.x = this.min.y = + Infinity;
-			this.max.x = this.max.y = - Infinity;
-
-			return this;
-
-		},
-
-		isEmpty: function () {
-
-			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
-
-			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );
-
-		},
-
-		getCenter: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Box2: .getCenter() target is now required' );
-				target = new Vector2();
-
-			}
-
-			return this.isEmpty() ? target.set( 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 );
-
-		},
-
-		getSize: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Box2: .getSize() target is now required' );
-				target = new Vector2();
-
-			}
-
-			return this.isEmpty() ? target.set( 0, 0 ) : target.subVectors( this.max, this.min );
-
-		},
-
-		expandByPoint: function ( point ) {
-
-			this.min.min( point );
-			this.max.max( point );
-
-			return this;
-
-		},
-
-		expandByVector: function ( vector ) {
-
-			this.min.sub( vector );
-			this.max.add( vector );
-
-			return this;
-
-		},
-
-		expandByScalar: function ( scalar ) {
-
-			this.min.addScalar( - scalar );
-			this.max.addScalar( scalar );
-
-			return this;
-
-		},
-
-		containsPoint: function ( point ) {
-
-			return point.x < this.min.x || point.x > this.max.x ||
-				point.y < this.min.y || point.y > this.max.y ? false : true;
-
-		},
-
-		containsBox: function ( box ) {
-
-			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
-				this.min.y <= box.min.y && box.max.y <= this.max.y;
-
-		},
-
-		getParameter: function ( point, target ) {
-
-			// This can potentially have a divide by zero if the box
-			// has a size dimension of 0.
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Box2: .getParameter() target is now required' );
-				target = new Vector2();
-
-			}
-
-			return target.set(
-				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
-				( point.y - this.min.y ) / ( this.max.y - this.min.y )
-			);
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			// using 4 splitting planes to rule out intersections
-
-			return box.max.x < this.min.x || box.min.x > this.max.x ||
-				box.max.y < this.min.y || box.min.y > this.max.y ? false : true;
-
-		},
-
-		clampPoint: function ( point, target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Box2: .clampPoint() target is now required' );
-				target = new Vector2();
-
-			}
-
-			return target.copy( point ).clamp( this.min, this.max );
-
-		},
-
-		distanceToPoint: function () {
-
-			var v1 = new Vector2();
-
-			return function distanceToPoint( point ) {
-
-				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
-				return clampedPoint.sub( point ).length();
-
-			};
-
-		}(),
-
-		intersect: function ( box ) {
-
-			this.min.max( box.min );
-			this.max.min( box.max );
-
-			return this;
-
-		},
-
-		union: function ( box ) {
-
-			this.min.min( box.min );
-			this.max.max( box.max );
-
-			return this;
-
-		},
-
-		translate: function ( offset ) {
-
-			this.min.add( offset );
-			this.max.add( offset );
-
-			return this;
-
-		},
-
-		equals: function ( box ) {
-
-			return box.min.equals( this.min ) && box.max.equals( this.max );
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Line3( start, end ) {
-
-		this.start = ( start !== undefined ) ? start : new Vector3();
-		this.end = ( end !== undefined ) ? end : new Vector3();
-
-	}
-
-	Object.assign( Line3.prototype, {
-
-		set: function ( start, end ) {
-
-			this.start.copy( start );
-			this.end.copy( end );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( line ) {
-
-			this.start.copy( line.start );
-			this.end.copy( line.end );
-
-			return this;
-
-		},
-
-		getCenter: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Line3: .getCenter() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return target.addVectors( this.start, this.end ).multiplyScalar( 0.5 );
-
-		},
-
-		delta: function ( target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Line3: .delta() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return target.subVectors( this.end, this.start );
-
-		},
-
-		distanceSq: function () {
-
-			return this.start.distanceToSquared( this.end );
-
-		},
-
-		distance: function () {
-
-			return this.start.distanceTo( this.end );
-
-		},
-
-		at: function ( t, target ) {
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Line3: .at() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return this.delta( target ).multiplyScalar( t ).add( this.start );
-
-		},
-
-		closestPointToPointParameter: function () {
-
-			var startP = new Vector3();
-			var startEnd = new Vector3();
-
-			return function closestPointToPointParameter( point, clampToLine ) {
-
-				startP.subVectors( point, this.start );
-				startEnd.subVectors( this.end, this.start );
-
-				var startEnd2 = startEnd.dot( startEnd );
-				var startEnd_startP = startEnd.dot( startP );
-
-				var t = startEnd_startP / startEnd2;
-
-				if ( clampToLine ) {
-
-					t = _Math.clamp( t, 0, 1 );
-
-				}
-
-				return t;
-
-			};
-
-		}(),
-
-		closestPointToPoint: function ( point, clampToLine, target ) {
-
-			var t = this.closestPointToPointParameter( point, clampToLine );
-
-			if ( target === undefined ) {
-
-				console.warn( 'THREE.Line3: .closestPointToPoint() target is now required' );
-				target = new Vector3();
-
-			}
-
-			return this.delta( target ).multiplyScalar( t ).add( this.start );
-
-		},
-
-		applyMatrix4: function ( matrix ) {
-
-			this.start.applyMatrix4( matrix );
-			this.end.applyMatrix4( matrix );
-
-			return this;
-
-		},
-
-		equals: function ( line ) {
-
-			return line.start.equals( this.start ) && line.end.equals( this.end );
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function ImmediateRenderObject( material ) {
-
-		Object3D.call( this );
-
-		this.material = material;
-		this.render = function ( /* renderCallback */ ) {};
-
-	}
-
-	ImmediateRenderObject.prototype = Object.create( Object3D.prototype );
-	ImmediateRenderObject.prototype.constructor = ImmediateRenderObject;
-
-	ImmediateRenderObject.prototype.isImmediateRenderObject = true;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function VertexNormalsHelper( object, size, hex, linewidth ) {
-
-		this.object = object;
-
-		this.size = ( size !== undefined ) ? size : 1;
-
-		var color = ( hex !== undefined ) ? hex : 0xff0000;
-
-		var width = ( linewidth !== undefined ) ? linewidth : 1;
-
-		//
-
-		var nNormals = 0;
-
-		var objGeometry = this.object.geometry;
-
-		if ( objGeometry && objGeometry.isGeometry ) {
-
-			nNormals = objGeometry.faces.length * 3;
-
-		} else if ( objGeometry && objGeometry.isBufferGeometry ) {
-
-			nNormals = objGeometry.attributes.normal.count;
-
-		}
-
-		//
-
-		var geometry = new BufferGeometry();
-
-		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );
-
-		geometry.addAttribute( 'position', positions );
-
-		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );
-
-		//
-
-		this.matrixAutoUpdate = false;
-
-		this.update();
-
-	}
-
-	VertexNormalsHelper.prototype = Object.create( LineSegments.prototype );
-	VertexNormalsHelper.prototype.constructor = VertexNormalsHelper;
-
-	VertexNormalsHelper.prototype.update = ( function () {
-
-		var v1 = new Vector3();
-		var v2 = new Vector3();
-		var normalMatrix = new Matrix3();
-
-		return function update() {
-
-			var keys = [ 'a', 'b', 'c' ];
-
-			this.object.updateMatrixWorld( true );
-
-			normalMatrix.getNormalMatrix( this.object.matrixWorld );
-
-			var matrixWorld = this.object.matrixWorld;
-
-			var position = this.geometry.attributes.position;
-
-			//
-
-			var objGeometry = this.object.geometry;
-
-			if ( objGeometry && objGeometry.isGeometry ) {
-
-				var vertices = objGeometry.vertices;
-
-				var faces = objGeometry.faces;
-
-				var idx = 0;
-
-				for ( var i = 0, l = faces.length; i < l; i ++ ) {
-
-					var face = faces[ i ];
-
-					for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {
-
-						var vertex = vertices[ face[ keys[ j ] ] ];
-
-						var normal = face.vertexNormals[ j ];
-
-						v1.copy( vertex ).applyMatrix4( matrixWorld );
-
-						v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
-
-						position.setXYZ( idx, v1.x, v1.y, v1.z );
-
-						idx = idx + 1;
-
-						position.setXYZ( idx, v2.x, v2.y, v2.z );
-
-						idx = idx + 1;
-
-					}
-
-				}
-
-			} else if ( objGeometry && objGeometry.isBufferGeometry ) {
-
-				var objPos = objGeometry.attributes.position;
-
-				var objNorm = objGeometry.attributes.normal;
-
-				var idx = 0;
-
-				// for simplicity, ignore index and drawcalls, and render every normal
-
-				for ( var j = 0, jl = objPos.count; j < jl; j ++ ) {
-
-					v1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );
-
-					v2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );
-
-					v2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
-
-					position.setXYZ( idx, v1.x, v1.y, v1.z );
-
-					idx = idx + 1;
-
-					position.setXYZ( idx, v2.x, v2.y, v2.z );
-
-					idx = idx + 1;
-
-				}
-
-			}
-
-			position.needsUpdate = true;
-
-		};
-
-	}() );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function SpotLightHelper( light, color ) {
-
-		Object3D.call( this );
-
-		this.light = light;
-		this.light.updateMatrixWorld();
-
-		this.matrix = light.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.color = color;
-
-		var geometry = new BufferGeometry();
-
-		var positions = [
-			0, 0, 0, 	0, 0, 1,
-			0, 0, 0, 	1, 0, 1,
-			0, 0, 0,	- 1, 0, 1,
-			0, 0, 0, 	0, 1, 1,
-			0, 0, 0, 	0, - 1, 1
-		];
-
-		for ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {
-
-			var p1 = ( i / l ) * Math.PI * 2;
-			var p2 = ( j / l ) * Math.PI * 2;
-
-			positions.push(
-				Math.cos( p1 ), Math.sin( p1 ), 1,
-				Math.cos( p2 ), Math.sin( p2 ), 1
-			);
-
-		}
-
-		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
-
-		var material = new LineBasicMaterial( { fog: false } );
-
-		this.cone = new LineSegments( geometry, material );
-		this.add( this.cone );
-
-		this.update();
-
-	}
-
-	SpotLightHelper.prototype = Object.create( Object3D.prototype );
-	SpotLightHelper.prototype.constructor = SpotLightHelper;
-
-	SpotLightHelper.prototype.dispose = function () {
-
-		this.cone.geometry.dispose();
-		this.cone.material.dispose();
-
-	};
-
-	SpotLightHelper.prototype.update = function () {
-
-		var vector = new Vector3();
-
-		return function update() {
-
-			this.light.updateMatrixWorld();
-
-			var coneLength = this.light.distance ? this.light.distance : 1000;
-			var coneWidth = coneLength * Math.tan( this.light.angle );
-
-			this.cone.scale.set( coneWidth, coneWidth, coneLength );
-
-			vector.setFromMatrixPosition( this.light.target.matrixWorld );
-
-			this.cone.lookAt( vector );
-
-			if ( this.color !== undefined ) {
-
-				this.cone.material.color.set( this.color );
-
-			} else {
-
-				this.cone.material.color.copy( this.light.color );
-
-			}
-
-		};
-
-	}();
-
-	/**
-	 * @author Sean Griffin / http://twitter.com/sgrif
-	 * @author Michael Guerrero / http://realitymeltdown.com
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author ikerr / http://verold.com
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function getBoneList( object ) {
-
-		var boneList = [];
-
-		if ( object && object.isBone ) {
-
-			boneList.push( object );
-
-		}
-
-		for ( var i = 0; i < object.children.length; i ++ ) {
-
-			boneList.push.apply( boneList, getBoneList( object.children[ i ] ) );
-
-		}
-
-		return boneList;
-
-	}
-
-	function SkeletonHelper( object ) {
-
-		var bones = getBoneList( object );
-
-		var geometry = new BufferGeometry();
-
-		var vertices = [];
-		var colors = [];
-
-		var color1 = new Color( 0, 0, 1 );
-		var color2 = new Color( 0, 1, 0 );
-
-		for ( var i = 0; i < bones.length; i ++ ) {
-
-			var bone = bones[ i ];
-
-			if ( bone.parent && bone.parent.isBone ) {
-
-				vertices.push( 0, 0, 0 );
-				vertices.push( 0, 0, 0 );
-				colors.push( color1.r, color1.g, color1.b );
-				colors.push( color2.r, color2.g, color2.b );
-
-			}
-
-		}
-
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		var material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } );
-
-		LineSegments.call( this, geometry, material );
-
-		this.root = object;
-		this.bones = bones;
-
-		this.matrix = object.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-	}
-
-	SkeletonHelper.prototype = Object.create( LineSegments.prototype );
-	SkeletonHelper.prototype.constructor = SkeletonHelper;
-
-	SkeletonHelper.prototype.updateMatrixWorld = function () {
-
-		var vector = new Vector3();
-
-		var boneMatrix = new Matrix4();
-		var matrixWorldInv = new Matrix4();
-
-		return function updateMatrixWorld( force ) {
-
-			var bones = this.bones;
-
-			var geometry = this.geometry;
-			var position = geometry.getAttribute( 'position' );
-
-			matrixWorldInv.getInverse( this.root.matrixWorld );
-
-			for ( var i = 0, j = 0; i < bones.length; i ++ ) {
-
-				var bone = bones[ i ];
-
-				if ( bone.parent && bone.parent.isBone ) {
-
-					boneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );
-					vector.setFromMatrixPosition( boneMatrix );
-					position.setXYZ( j, vector.x, vector.y, vector.z );
-
-					boneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );
-					vector.setFromMatrixPosition( boneMatrix );
-					position.setXYZ( j + 1, vector.x, vector.y, vector.z );
-
-					j += 2;
-
-				}
-
-			}
-
-			geometry.getAttribute( 'position' ).needsUpdate = true;
-
-			Object3D.prototype.updateMatrixWorld.call( this, force );
-
-		};
-
-	}();
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function PointLightHelper( light, sphereSize, color ) {
-
-		this.light = light;
-		this.light.updateMatrixWorld();
-
-		this.color = color;
-
-		var geometry = new SphereBufferGeometry( sphereSize, 4, 2 );
-		var material = new MeshBasicMaterial( { wireframe: true, fog: false } );
-
-		Mesh.call( this, geometry, material );
-
-		this.matrix = this.light.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.update();
-
-
-		/*
-		var distanceGeometry = new THREE.IcosahedronBufferGeometry( 1, 2 );
-		var distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );
-
-		this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
-		this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );
-
-		var d = light.distance;
-
-		if ( d === 0.0 ) {
-
-			this.lightDistance.visible = false;
-
-		} else {
-
-			this.lightDistance.scale.set( d, d, d );
-
-		}
-
-		this.add( this.lightDistance );
-		*/
-
-	}
-
-	PointLightHelper.prototype = Object.create( Mesh.prototype );
-	PointLightHelper.prototype.constructor = PointLightHelper;
-
-	PointLightHelper.prototype.dispose = function () {
-
-		this.geometry.dispose();
-		this.material.dispose();
-
-	};
-
-	PointLightHelper.prototype.update = function () {
-
-		if ( this.color !== undefined ) {
-
-			this.material.color.set( this.color );
-
-		} else {
-
-			this.material.color.copy( this.light.color );
-
-		}
-
-		/*
-		var d = this.light.distance;
-
-		if ( d === 0.0 ) {
-
-			this.lightDistance.visible = false;
-
-		} else {
-
-			this.lightDistance.visible = true;
-			this.lightDistance.scale.set( d, d, d );
-
-		}
-		*/
-
-	};
-
-	/**
-	 * @author abelnation / http://github.com/abelnation
-	 * @author Mugen87 / http://github.com/Mugen87
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 *  This helper must be added as a child of the light
-	 */
-
-	function RectAreaLightHelper( light, color ) {
-
-		this.type = 'RectAreaLightHelper';
-
-		this.light = light;
-
-		this.color = color; // optional hardwired color for the helper
-
-		var positions = [ 1, 1, 0, - 1, 1, 0, - 1, - 1, 0, 1, - 1, 0, 1, 1, 0 ];
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
-		geometry.computeBoundingSphere();
-
-		var material = new LineBasicMaterial( { fog: false } );
-
-		Line.call( this, geometry, material );
-
-		//
-
-		var positions2 = [ 1, 1, 0, - 1, 1, 0, - 1, - 1, 0, 1, 1, 0, - 1, - 1, 0, 1, - 1, 0 ];
-
-		var geometry2 = new BufferGeometry();
-		geometry2.addAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
-		geometry2.computeBoundingSphere();
-
-		this.add( new Mesh( geometry2, new MeshBasicMaterial( { side: BackSide, fog: false } ) ) );
-
-		this.update();
-
-	}
-
-	RectAreaLightHelper.prototype = Object.create( Line.prototype );
-	RectAreaLightHelper.prototype.constructor = RectAreaLightHelper;
-
-	RectAreaLightHelper.prototype.update = function () {
-
-		this.scale.set( 0.5 * this.light.width, 0.5 * this.light.height, 1 );
-
-		if ( this.color !== undefined ) {
-
-			this.material.color.set( this.color );
-			this.children[ 0 ].material.color.set( this.color );
-
-		} else {
-
-			this.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );
-
-			// prevent hue shift
-			var c = this.material.color;
-			var max = Math.max( c.r, c.g, c.b );
-			if ( max > 1 ) c.multiplyScalar( 1 / max );
-
-			this.children[ 0 ].material.color.copy( this.material.color );
-
-		}
-
-	};
-
-	RectAreaLightHelper.prototype.dispose = function () {
-
-		this.geometry.dispose();
-		this.material.dispose();
-		this.children[ 0 ].geometry.dispose();
-		this.children[ 0 ].material.dispose();
-
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function HemisphereLightHelper( light, size, color ) {
-
-		Object3D.call( this );
-
-		this.light = light;
-		this.light.updateMatrixWorld();
-
-		this.matrix = light.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.color = color;
-
-		var geometry = new OctahedronBufferGeometry( size );
-		geometry.rotateY( Math.PI * 0.5 );
-
-		this.material = new MeshBasicMaterial( { wireframe: true, fog: false } );
-		if ( this.color === undefined ) this.material.vertexColors = VertexColors;
-
-		var position = geometry.getAttribute( 'position' );
-		var colors = new Float32Array( position.count * 3 );
-
-		geometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) );
-
-		this.add( new Mesh( geometry, this.material ) );
-
-		this.update();
-
-	}
-
-	HemisphereLightHelper.prototype = Object.create( Object3D.prototype );
-	HemisphereLightHelper.prototype.constructor = HemisphereLightHelper;
-
-	HemisphereLightHelper.prototype.dispose = function () {
-
-		this.children[ 0 ].geometry.dispose();
-		this.children[ 0 ].material.dispose();
-
-	};
-
-	HemisphereLightHelper.prototype.update = function () {
-
-		var vector = new Vector3();
-
-		var color1 = new Color();
-		var color2 = new Color();
-
-		return function update() {
-
-			var mesh = this.children[ 0 ];
-
-			if ( this.color !== undefined ) {
-
-				this.material.color.set( this.color );
-
-			} else {
-
-				var colors = mesh.geometry.getAttribute( 'color' );
-
-				color1.copy( this.light.color );
-				color2.copy( this.light.groundColor );
-
-				for ( var i = 0, l = colors.count; i < l; i ++ ) {
-
-					var color = ( i < ( l / 2 ) ) ? color1 : color2;
-
-					colors.setXYZ( i, color.r, color.g, color.b );
-
-				}
-
-				colors.needsUpdate = true;
-
-			}
-
-			mesh.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );
-
-		};
-
-	}();
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function LightProbeHelper( lightProbe, size ) {
-
-		this.lightProbe = lightProbe;
-
-		this.size = size;
-
-		var defines = {};
-		defines[ 'GAMMA_OUTPUT' ] = "";
-
-		// material
-		var material = new ShaderMaterial( {
-
-			defines: defines,
-
-			uniforms: {
-
-				sh: { value: this.lightProbe.sh.coefficients }, // by reference
-
-				intensity: { value: this.lightProbe.intensity }
-
-			},
-
-			vertexShader: [
-
-				'varying vec3 vNormal;',
-
-				'void main() {',
-
-				'	vNormal = normalize( normalMatrix * normal );',
-
-				'	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',
-
-				'}',
-
-			].join( '\n' ),
-
-			fragmentShader: [
-
-				'#define RECIPROCAL_PI 0.318309886',
-
-				'vec3 inverseTransformDirection( in vec3 normal, in mat4 matrix ) {',
-
-				'	// matrix is assumed to be orthogonal',
-
-				'	return normalize( ( vec4( normal, 0.0 ) * matrix ).xyz );',
-
-				'}',
-
-				'vec3 linearToOutput( in vec3 a ) {',
-
-				'	#ifdef GAMMA_OUTPUT',
-
-				'		return pow( a, vec3( 1.0 / float( GAMMA_FACTOR ) ) );',
-
-				'	#else',
-
-				'		return a;',
-
-				'	#endif',
-
-				'}',
-
-				'// source: https://graphics.stanford.edu/papers/envmap/envmap.pdf',
-				'vec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {',
-
-				'	// normal is assumed to have unit length',
-
-				'	float x = normal.x, y = normal.y, z = normal.z;',
-
-				'	// band 0',
-				'	vec3 result = shCoefficients[ 0 ] * 0.886227;',
-
-				'	// band 1',
-				'	result += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;',
-				'	result += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;',
-				'	result += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;',
-
-				'	// band 2',
-				'	result += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;',
-				'	result += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;',
-				'	result += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );',
-				'	result += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;',
-				'	result += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );',
-
-				'	return result;',
-
-				'}',
-
-				'uniform vec3 sh[ 9 ]; // sh coefficients',
-
-				'uniform float intensity; // light probe intensity',
-
-				'varying vec3 vNormal;',
-
-				'void main() {',
-
-				'	vec3 normal = normalize( vNormal );',
-
-				'	vec3 worldNormal = inverseTransformDirection( normal, viewMatrix );',
-
-				'	vec3 irradiance = shGetIrradianceAt( worldNormal, sh );',
-
-				'	vec3 outgoingLight = RECIPROCAL_PI * irradiance * intensity;',
-
-				'	outgoingLight = linearToOutput( outgoingLight );',
-
-				'	gl_FragColor = vec4( outgoingLight, 1.0 );',
-
-				'}'
-
-			].join( '\n' )
-
-		} );
-
-		var geometry = new SphereBufferGeometry( 1, 32, 16 );
-
-		Mesh.call( this, geometry, material );
-
-		this.onBeforeRender();
-
-	}
-
-	LightProbeHelper.prototype = Object.create( Mesh.prototype );
-	LightProbeHelper.prototype.constructor = LightProbeHelper;
-
-	LightProbeHelper.prototype.dispose = function () {
-
-		this.geometry.dispose();
-		this.material.dispose();
-
-	};
-
-	LightProbeHelper.prototype.onBeforeRender = function () {
-
-		return function update() {
-
-			this.position.copy( this.lightProbe.position );
-
-			this.scale.set( 1, 1, 1 ).multiplyScalar( this.size );
-
-			this.material.uniforms.intensity.value = this.lightProbe.intensity;
-
-		};
-
-	}();
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function GridHelper( size, divisions, color1, color2 ) {
-
-		size = size || 10;
-		divisions = divisions || 10;
-		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
-		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );
-
-		var center = divisions / 2;
-		var step = size / divisions;
-		var halfSize = size / 2;
-
-		var vertices = [], colors = [];
-
-		for ( var i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {
-
-			vertices.push( - halfSize, 0, k, halfSize, 0, k );
-			vertices.push( k, 0, - halfSize, k, 0, halfSize );
-
-			var color = i === center ? color1 : color2;
-
-			color.toArray( colors, j ); j += 3;
-			color.toArray( colors, j ); j += 3;
-			color.toArray( colors, j ); j += 3;
-			color.toArray( colors, j ); j += 3;
-
-		}
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		var material = new LineBasicMaterial( { vertexColors: VertexColors } );
-
-		LineSegments.call( this, geometry, material );
-
-	}
-
-	GridHelper.prototype = Object.assign( Object.create( LineSegments.prototype ), {
-
-		constructor: GridHelper,
-
-		copy: function ( source ) {
-
-			LineSegments.prototype.copy.call( this, source );
-
-			this.geometry.copy( source.geometry );
-			this.material.copy( source.material );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / http://github.com/Mugen87
-	 * @author Hectate / http://www.github.com/Hectate
-	 */
-
-	function PolarGridHelper( radius, radials, circles, divisions, color1, color2 ) {
-
-		radius = radius || 10;
-		radials = radials || 16;
-		circles = circles || 8;
-		divisions = divisions || 64;
-		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
-		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );
-
-		var vertices = [];
-		var colors = [];
-
-		var x, z;
-		var v, i, j, r, color;
-
-		// create the radials
-
-		for ( i = 0; i <= radials; i ++ ) {
-
-			v = ( i / radials ) * ( Math.PI * 2 );
-
-			x = Math.sin( v ) * radius;
-			z = Math.cos( v ) * radius;
-
-			vertices.push( 0, 0, 0 );
-			vertices.push( x, 0, z );
-
-			color = ( i & 1 ) ? color1 : color2;
-
-			colors.push( color.r, color.g, color.b );
-			colors.push( color.r, color.g, color.b );
-
-		}
-
-		// create the circles
-
-		for ( i = 0; i <= circles; i ++ ) {
-
-			color = ( i & 1 ) ? color1 : color2;
-
-			r = radius - ( radius / circles * i );
-
-			for ( j = 0; j < divisions; j ++ ) {
-
-				// first vertex
-
-				v = ( j / divisions ) * ( Math.PI * 2 );
-
-				x = Math.sin( v ) * r;
-				z = Math.cos( v ) * r;
-
-				vertices.push( x, 0, z );
-				colors.push( color.r, color.g, color.b );
-
-				// second vertex
-
-				v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );
-
-				x = Math.sin( v ) * r;
-				z = Math.cos( v ) * r;
-
-				vertices.push( x, 0, z );
-				colors.push( color.r, color.g, color.b );
-
-			}
-
-		}
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		var material = new LineBasicMaterial( { vertexColors: VertexColors } );
-
-		LineSegments.call( this, geometry, material );
-
-	}
-
-	PolarGridHelper.prototype = Object.create( LineSegments.prototype );
-	PolarGridHelper.prototype.constructor = PolarGridHelper;
-
-	/**
-	 * @author Mugen87 / http://github.com/Mugen87
-	 */
-
-	function PositionalAudioHelper( audio, range, divisionsInnerAngle, divisionsOuterAngle ) {
-
-		this.audio = audio;
-		this.range = range || 1;
-		this.divisionsInnerAngle = divisionsInnerAngle || 16;
-		this.divisionsOuterAngle = divisionsOuterAngle || 2;
-
-		var geometry = new BufferGeometry();
-		var divisions = this.divisionsInnerAngle + this.divisionsOuterAngle * 2;
-		var positions = new Float32Array( ( divisions * 3 + 3 ) * 3 );
-		geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );
-
-		var materialInnerAngle = new LineBasicMaterial( { color: 0x00ff00 } );
-		var materialOuterAngle = new LineBasicMaterial( { color: 0xffff00 } );
-
-		Line.call( this, geometry, [ materialOuterAngle, materialInnerAngle ] );
-
-		this.update();
-
-	}
-
-	PositionalAudioHelper.prototype = Object.create( Line.prototype );
-	PositionalAudioHelper.prototype.constructor = PositionalAudioHelper;
-
-	PositionalAudioHelper.prototype.update = function () {
-
-		var audio = this.audio;
-		var range = this.range;
-		var divisionsInnerAngle = this.divisionsInnerAngle;
-		var divisionsOuterAngle = this.divisionsOuterAngle;
-
-		var coneInnerAngle = _Math.degToRad( audio.panner.coneInnerAngle );
-		var coneOuterAngle = _Math.degToRad( audio.panner.coneOuterAngle );
-
-		var halfConeInnerAngle = coneInnerAngle / 2;
-		var halfConeOuterAngle = coneOuterAngle / 2;
-
-		var start = 0;
-		var count = 0;
-		var i, stride;
-
-		var geometry = this.geometry;
-		var positionAttribute = geometry.attributes.position;
-
-		geometry.clearGroups();
-
-		//
-
-		function generateSegment( from, to, divisions, materialIndex ) {
-
-			var step = ( to - from ) / divisions;
-
-			positionAttribute.setXYZ( start, 0, 0, 0 );
-			count ++;
-
-			for ( i = from; i < to; i += step ) {
-
-				stride = start + count;
-
-				positionAttribute.setXYZ( stride, Math.sin( i ) * range, 0, Math.cos( i ) * range );
-				positionAttribute.setXYZ( stride + 1, Math.sin( Math.min( i + step, to ) ) * range, 0, Math.cos( Math.min( i + step, to ) ) * range );
-				positionAttribute.setXYZ( stride + 2, 0, 0, 0 );
-
-				count += 3;
-
-			}
-
-			geometry.addGroup( start, count, materialIndex );
-
-			start += count;
-			count = 0;
-
-		}
-
-		//
-
-		generateSegment( - halfConeOuterAngle, - halfConeInnerAngle, divisionsOuterAngle, 0 );
-		generateSegment( - halfConeInnerAngle, halfConeInnerAngle, divisionsInnerAngle, 1 );
-		generateSegment( halfConeInnerAngle, halfConeOuterAngle, divisionsOuterAngle, 0 );
-
-		//
-
-		positionAttribute.needsUpdate = true;
-
-		if ( coneInnerAngle === coneOuterAngle ) this.material[ 0 ].visible = false;
-
-	};
-
-	PositionalAudioHelper.prototype.dispose = function () {
-
-		this.geometry.dispose();
-		this.material[ 0 ].dispose();
-		this.material[ 1 ].dispose();
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function FaceNormalsHelper( object, size, hex, linewidth ) {
-
-		// FaceNormalsHelper only supports THREE.Geometry
-
-		this.object = object;
-
-		this.size = ( size !== undefined ) ? size : 1;
-
-		var color = ( hex !== undefined ) ? hex : 0xffff00;
-
-		var width = ( linewidth !== undefined ) ? linewidth : 1;
-
-		//
-
-		var nNormals = 0;
-
-		var objGeometry = this.object.geometry;
-
-		if ( objGeometry && objGeometry.isGeometry ) {
-
-			nNormals = objGeometry.faces.length;
-
-		} else {
-
-			console.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );
-
-		}
-
-		//
-
-		var geometry = new BufferGeometry();
-
-		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );
-
-		geometry.addAttribute( 'position', positions );
-
-		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );
-
-		//
-
-		this.matrixAutoUpdate = false;
-		this.update();
-
-	}
-
-	FaceNormalsHelper.prototype = Object.create( LineSegments.prototype );
-	FaceNormalsHelper.prototype.constructor = FaceNormalsHelper;
-
-	FaceNormalsHelper.prototype.update = ( function () {
-
-		var v1 = new Vector3();
-		var v2 = new Vector3();
-		var normalMatrix = new Matrix3();
-
-		return function update() {
-
-			this.object.updateMatrixWorld( true );
-
-			normalMatrix.getNormalMatrix( this.object.matrixWorld );
-
-			var matrixWorld = this.object.matrixWorld;
-
-			var position = this.geometry.attributes.position;
-
-			//
-
-			var objGeometry = this.object.geometry;
-
-			var vertices = objGeometry.vertices;
-
-			var faces = objGeometry.faces;
-
-			var idx = 0;
-
-			for ( var i = 0, l = faces.length; i < l; i ++ ) {
-
-				var face = faces[ i ];
-
-				var normal = face.normal;
-
-				v1.copy( vertices[ face.a ] )
-					.add( vertices[ face.b ] )
-					.add( vertices[ face.c ] )
-					.divideScalar( 3 )
-					.applyMatrix4( matrixWorld );
-
-				v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
-
-				position.setXYZ( idx, v1.x, v1.y, v1.z );
-
-				idx = idx + 1;
-
-				position.setXYZ( idx, v2.x, v2.y, v2.z );
-
-				idx = idx + 1;
-
-			}
-
-			position.needsUpdate = true;
-
-		};
-
-	}() );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function DirectionalLightHelper( light, size, color ) {
-
-		Object3D.call( this );
-
-		this.light = light;
-		this.light.updateMatrixWorld();
-
-		this.matrix = light.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.color = color;
-
-		if ( size === undefined ) size = 1;
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( [
-			- size, size, 0,
-			size, size, 0,
-			size, - size, 0,
-			- size, - size, 0,
-			- size, size, 0
-		], 3 ) );
-
-		var material = new LineBasicMaterial( { fog: false } );
-
-		this.lightPlane = new Line( geometry, material );
-		this.add( this.lightPlane );
-
-		geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );
-
-		this.targetLine = new Line( geometry, material );
-		this.add( this.targetLine );
-
-		this.update();
-
-	}
-
-	DirectionalLightHelper.prototype = Object.create( Object3D.prototype );
-	DirectionalLightHelper.prototype.constructor = DirectionalLightHelper;
-
-	DirectionalLightHelper.prototype.dispose = function () {
-
-		this.lightPlane.geometry.dispose();
-		this.lightPlane.material.dispose();
-		this.targetLine.geometry.dispose();
-		this.targetLine.material.dispose();
-
-	};
-
-	DirectionalLightHelper.prototype.update = function () {
-
-		var v1 = new Vector3();
-		var v2 = new Vector3();
-		var v3 = new Vector3();
-
-		return function update() {
-
-			v1.setFromMatrixPosition( this.light.matrixWorld );
-			v2.setFromMatrixPosition( this.light.target.matrixWorld );
-			v3.subVectors( v2, v1 );
-
-			this.lightPlane.lookAt( v2 );
-
-			if ( this.color !== undefined ) {
-
-				this.lightPlane.material.color.set( this.color );
-				this.targetLine.material.color.set( this.color );
-
-			} else {
-
-				this.lightPlane.material.color.copy( this.light.color );
-				this.targetLine.material.color.copy( this.light.color );
-
-			}
-
-			this.targetLine.lookAt( v2 );
-			this.targetLine.scale.z = v3.length();
-
-		};
-
-	}();
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 *	- shows frustum, line of sight and up of the camera
-	 *	- suitable for fast updates
-	 * 	- based on frustum visualization in lightgl.js shadowmap example
-	 *		http://evanw.github.com/lightgl.js/tests/shadowmap.html
-	 */
-
-	function CameraHelper( camera ) {
-
-		var geometry = new BufferGeometry();
-		var material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } );
-
-		var vertices = [];
-		var colors = [];
-
-		var pointMap = {};
-
-		// colors
-
-		var colorFrustum = new Color( 0xffaa00 );
-		var colorCone = new Color( 0xff0000 );
-		var colorUp = new Color( 0x00aaff );
-		var colorTarget = new Color( 0xffffff );
-		var colorCross = new Color( 0x333333 );
-
-		// near
-
-		addLine( 'n1', 'n2', colorFrustum );
-		addLine( 'n2', 'n4', colorFrustum );
-		addLine( 'n4', 'n3', colorFrustum );
-		addLine( 'n3', 'n1', colorFrustum );
-
-		// far
-
-		addLine( 'f1', 'f2', colorFrustum );
-		addLine( 'f2', 'f4', colorFrustum );
-		addLine( 'f4', 'f3', colorFrustum );
-		addLine( 'f3', 'f1', colorFrustum );
-
-		// sides
-
-		addLine( 'n1', 'f1', colorFrustum );
-		addLine( 'n2', 'f2', colorFrustum );
-		addLine( 'n3', 'f3', colorFrustum );
-		addLine( 'n4', 'f4', colorFrustum );
-
-		// cone
-
-		addLine( 'p', 'n1', colorCone );
-		addLine( 'p', 'n2', colorCone );
-		addLine( 'p', 'n3', colorCone );
-		addLine( 'p', 'n4', colorCone );
-
-		// up
-
-		addLine( 'u1', 'u2', colorUp );
-		addLine( 'u2', 'u3', colorUp );
-		addLine( 'u3', 'u1', colorUp );
-
-		// target
-
-		addLine( 'c', 't', colorTarget );
-		addLine( 'p', 'c', colorCross );
-
-		// cross
-
-		addLine( 'cn1', 'cn2', colorCross );
-		addLine( 'cn3', 'cn4', colorCross );
-
-		addLine( 'cf1', 'cf2', colorCross );
-		addLine( 'cf3', 'cf4', colorCross );
-
-		function addLine( a, b, color ) {
-
-			addPoint( a, color );
-			addPoint( b, color );
-
-		}
-
-		function addPoint( id, color ) {
-
-			vertices.push( 0, 0, 0 );
-			colors.push( color.r, color.g, color.b );
-
-			if ( pointMap[ id ] === undefined ) {
-
-				pointMap[ id ] = [];
-
-			}
-
-			pointMap[ id ].push( ( vertices.length / 3 ) - 1 );
-
-		}
-
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		LineSegments.call( this, geometry, material );
-
-		this.camera = camera;
-		if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();
-
-		this.matrix = camera.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.pointMap = pointMap;
-
-		this.update();
-
-	}
-
-	CameraHelper.prototype = Object.create( LineSegments.prototype );
-	CameraHelper.prototype.constructor = CameraHelper;
-
-	CameraHelper.prototype.update = function () {
-
-		var geometry, pointMap;
-
-		var vector = new Vector3();
-		var camera = new Camera();
-
-		function setPoint( point, x, y, z ) {
-
-			vector.set( x, y, z ).unproject( camera );
-
-			var points = pointMap[ point ];
-
-			if ( points !== undefined ) {
-
-				var position = geometry.getAttribute( 'position' );
-
-				for ( var i = 0, l = points.length; i < l; i ++ ) {
-
-					position.setXYZ( points[ i ], vector.x, vector.y, vector.z );
-
-				}
-
-			}
-
-		}
-
-		return function update() {
-
-			geometry = this.geometry;
-			pointMap = this.pointMap;
-
-			var w = 1, h = 1;
-
-			// we need just camera projection matrix inverse
-			// world matrix must be identity
-
-			camera.projectionMatrixInverse.copy( this.camera.projectionMatrixInverse );
-
-			// center / target
-
-			setPoint( 'c', 0, 0, - 1 );
-			setPoint( 't', 0, 0, 1 );
-
-			// near
-
-			setPoint( 'n1', - w, - h, - 1 );
-			setPoint( 'n2', w, - h, - 1 );
-			setPoint( 'n3', - w, h, - 1 );
-			setPoint( 'n4', w, h, - 1 );
-
-			// far
-
-			setPoint( 'f1', - w, - h, 1 );
-			setPoint( 'f2', w, - h, 1 );
-			setPoint( 'f3', - w, h, 1 );
-			setPoint( 'f4', w, h, 1 );
-
-			// up
-
-			setPoint( 'u1', w * 0.7, h * 1.1, - 1 );
-			setPoint( 'u2', - w * 0.7, h * 1.1, - 1 );
-			setPoint( 'u3', 0, h * 2, - 1 );
-
-			// cross
-
-			setPoint( 'cf1', - w, 0, 1 );
-			setPoint( 'cf2', w, 0, 1 );
-			setPoint( 'cf3', 0, - h, 1 );
-			setPoint( 'cf4', 0, h, 1 );
-
-			setPoint( 'cn1', - w, 0, - 1 );
-			setPoint( 'cn2', w, 0, - 1 );
-			setPoint( 'cn3', 0, - h, - 1 );
-			setPoint( 'cn4', 0, h, - 1 );
-
-			geometry.getAttribute( 'position' ).needsUpdate = true;
-
-		};
-
-	}();
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / http://github.com/Mugen87
-	 */
-
-	function BoxHelper( object, color ) {
-
-		this.object = object;
-
-		if ( color === undefined ) color = 0xffff00;
-
-		var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
-		var positions = new Float32Array( 8 * 3 );
-
-		var geometry = new BufferGeometry();
-		geometry.setIndex( new BufferAttribute( indices, 1 ) );
-		geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );
-
-		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );
-
-		this.matrixAutoUpdate = false;
-
-		this.update();
-
-	}
-
-	BoxHelper.prototype = Object.create( LineSegments.prototype );
-	BoxHelper.prototype.constructor = BoxHelper;
-
-	BoxHelper.prototype.update = ( function () {
-
-		var box = new Box3();
-
-		return function update( object ) {
-
-			if ( object !== undefined ) {
-
-				console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );
-
-			}
-
-			if ( this.object !== undefined ) {
-
-				box.setFromObject( this.object );
-
-			}
-
-			if ( box.isEmpty() ) return;
-
-			var min = box.min;
-			var max = box.max;
-
-			/*
-			  5____4
-			1/___0/|
-			| 6__|_7
-			2/___3/
-
-			0: max.x, max.y, max.z
-			1: min.x, max.y, max.z
-			2: min.x, min.y, max.z
-			3: max.x, min.y, max.z
-			4: max.x, max.y, min.z
-			5: min.x, max.y, min.z
-			6: min.x, min.y, min.z
-			7: max.x, min.y, min.z
-			*/
-
-			var position = this.geometry.attributes.position;
-			var array = position.array;
-
-			array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;
-			array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;
-			array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;
-			array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
-			array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
-			array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
-			array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
-			array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;
-
-			position.needsUpdate = true;
-
-			this.geometry.computeBoundingSphere();
-
-		};
-
-	} )();
-
-	BoxHelper.prototype.setFromObject = function ( object ) {
-
-		this.object = object;
-		this.update();
-
-		return this;
-
-	};
-
-	BoxHelper.prototype.copy = function ( source ) {
-
-		LineSegments.prototype.copy.call( this, source );
-
-		this.object = source.object;
-
-		return this;
-
-	};
-
-	BoxHelper.prototype.clone = function () {
-
-		return new this.constructor().copy( this );
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Box3Helper( box, hex ) {
-
-		this.type = 'Box3Helper';
-
-		this.box = box;
-
-		var color = ( hex !== undefined ) ? hex : 0xffff00;
-
-		var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
-
-		var positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ];
-
-		var geometry = new BufferGeometry();
-
-		geometry.setIndex( new BufferAttribute( indices, 1 ) );
-
-		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
-
-		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );
-
-		this.geometry.computeBoundingSphere();
-
-	}
-
-	Box3Helper.prototype = Object.create( LineSegments.prototype );
-	Box3Helper.prototype.constructor = Box3Helper;
-
-	Box3Helper.prototype.updateMatrixWorld = function ( force ) {
-
-		var box = this.box;
-
-		if ( box.isEmpty() ) return;
-
-		box.getCenter( this.position );
-
-		box.getSize( this.scale );
-
-		this.scale.multiplyScalar( 0.5 );
-
-		Object3D.prototype.updateMatrixWorld.call( this, force );
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function PlaneHelper( plane, size, hex ) {
-
-		this.type = 'PlaneHelper';
-
-		this.plane = plane;
-
-		this.size = ( size === undefined ) ? 1 : size;
-
-		var color = ( hex !== undefined ) ? hex : 0xffff00;
-
-		var positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ];
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
-		geometry.computeBoundingSphere();
-
-		Line.call( this, geometry, new LineBasicMaterial( { color: color } ) );
-
-		//
-
-		var positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ];
-
-		var geometry2 = new BufferGeometry();
-		geometry2.addAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
-		geometry2.computeBoundingSphere();
-
-		this.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false } ) ) );
-
-	}
-
-	PlaneHelper.prototype = Object.create( Line.prototype );
-	PlaneHelper.prototype.constructor = PlaneHelper;
-
-	PlaneHelper.prototype.updateMatrixWorld = function ( force ) {
-
-		var scale = - this.plane.constant;
-
-		if ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter
-
-		this.scale.set( 0.5 * this.size, 0.5 * this.size, scale );
-
-		this.children[ 0 ].material.side = ( scale < 0 ) ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here
-
-		this.lookAt( this.plane.normal );
-
-		Object3D.prototype.updateMatrixWorld.call( this, force );
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author zz85 / http://github.com/zz85
-	 * @author bhouston / http://clara.io
-	 *
-	 * Creates an arrow for visualizing directions
-	 *
-	 * Parameters:
-	 *  dir - Vector3
-	 *  origin - Vector3
-	 *  length - Number
-	 *  color - color in hex value
-	 *  headLength - Number
-	 *  headWidth - Number
-	 */
-
-	var lineGeometry, coneGeometry;
-
-	function ArrowHelper( dir, origin, length, color, headLength, headWidth ) {
-
-		// dir is assumed to be normalized
-
-		Object3D.call( this );
-
-		if ( dir === undefined ) dir = new Vector3( 0, 0, 1 );
-		if ( origin === undefined ) origin = new Vector3( 0, 0, 0 );
-		if ( length === undefined ) length = 1;
-		if ( color === undefined ) color = 0xffff00;
-		if ( headLength === undefined ) headLength = 0.2 * length;
-		if ( headWidth === undefined ) headWidth = 0.2 * headLength;
-
-		if ( lineGeometry === undefined ) {
-
-			lineGeometry = new BufferGeometry();
-			lineGeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );
-
-			coneGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 );
-			coneGeometry.translate( 0, - 0.5, 0 );
-
-		}
-
-		this.position.copy( origin );
-
-		this.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) );
-		this.line.matrixAutoUpdate = false;
-		this.add( this.line );
-
-		this.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) );
-		this.cone.matrixAutoUpdate = false;
-		this.add( this.cone );
-
-		this.setDirection( dir );
-		this.setLength( length, headLength, headWidth );
-
-	}
-
-	ArrowHelper.prototype = Object.create( Object3D.prototype );
-	ArrowHelper.prototype.constructor = ArrowHelper;
-
-	ArrowHelper.prototype.setDirection = ( function () {
-
-		var axis = new Vector3();
-		var radians;
-
-		return function setDirection( dir ) {
-
-			// dir is assumed to be normalized
-
-			if ( dir.y > 0.99999 ) {
-
-				this.quaternion.set( 0, 0, 0, 1 );
-
-			} else if ( dir.y < - 0.99999 ) {
-
-				this.quaternion.set( 1, 0, 0, 0 );
-
-			} else {
-
-				axis.set( dir.z, 0, - dir.x ).normalize();
-
-				radians = Math.acos( dir.y );
-
-				this.quaternion.setFromAxisAngle( axis, radians );
-
-			}
-
-		};
-
-	}() );
-
-	ArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {
-
-		if ( headLength === undefined ) headLength = 0.2 * length;
-		if ( headWidth === undefined ) headWidth = 0.2 * headLength;
-
-		this.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );
-		this.line.updateMatrix();
-
-		this.cone.scale.set( headWidth, headLength, headWidth );
-		this.cone.position.y = length;
-		this.cone.updateMatrix();
-
-	};
-
-	ArrowHelper.prototype.setColor = function ( color ) {
-
-		this.line.material.color.copy( color );
-		this.cone.material.color.copy( color );
-
-	};
-
-	ArrowHelper.prototype.copy = function ( source ) {
-
-		Object3D.prototype.copy.call( this, source, false );
-
-		this.line.copy( source.line );
-		this.cone.copy( source.cone );
-
-		return this;
-
-	};
-
-	ArrowHelper.prototype.clone = function () {
-
-		return new this.constructor().copy( this );
-
-	};
-
-	/**
-	 * @author sroucheray / http://sroucheray.org/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function AxesHelper( size ) {
-
-		size = size || 1;
-
-		var vertices = [
-			0, 0, 0,	size, 0, 0,
-			0, 0, 0,	0, size, 0,
-			0, 0, 0,	0, 0, size
-		];
-
-		var colors = [
-			1, 0, 0,	1, 0.6, 0,
-			0, 1, 0,	0.6, 1, 0,
-			0, 0, 1,	0, 0.6, 1
-		];
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		var material = new LineBasicMaterial( { vertexColors: VertexColors } );
-
-		LineSegments.call( this, geometry, material );
-
-	}
-
-	AxesHelper.prototype = Object.create( LineSegments.prototype );
-	AxesHelper.prototype.constructor = AxesHelper;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Face4( a, b, c, d, normal, color, materialIndex ) {
-
-		console.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );
-		return new Face3( a, b, c, normal, color, materialIndex );
-
-	}
-
-	var LineStrip = 0;
-
-	var LinePieces = 1;
-
-	function MeshFaceMaterial( materials ) {
-
-		console.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' );
-		return materials;
-
-	}
-
-	function MultiMaterial( materials ) {
-
-		if ( materials === undefined ) materials = [];
-
-		console.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' );
-		materials.isMultiMaterial = true;
-		materials.materials = materials;
-		materials.clone = function () {
-
-			return materials.slice();
-
-		};
-		return materials;
-
-	}
-
-	function PointCloud( geometry, material ) {
-
-		console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );
-		return new Points( geometry, material );
-
-	}
-
-	function Particle( material ) {
-
-		console.warn( 'THREE.Particle has been renamed to THREE.Sprite.' );
-		return new Sprite( material );
-
-	}
-
-	function ParticleSystem( geometry, material ) {
-
-		console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );
-		return new Points( geometry, material );
-
-	}
-
-	function PointCloudMaterial( parameters ) {
-
-		console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );
-		return new PointsMaterial( parameters );
-
-	}
-
-	function ParticleBasicMaterial( parameters ) {
-
-		console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );
-		return new PointsMaterial( parameters );
-
-	}
-
-	function ParticleSystemMaterial( parameters ) {
-
-		console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );
-		return new PointsMaterial( parameters );
-
-	}
-
-	function Vertex( x, y, z ) {
-
-		console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );
-		return new Vector3( x, y, z );
-
-	}
-
-	//
-
-	function DynamicBufferAttribute( array, itemSize ) {
-
-		console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );
-		return new BufferAttribute( array, itemSize ).setDynamic( true );
-
-	}
-
-	function Int8Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' );
-		return new Int8BufferAttribute( array, itemSize );
-
-	}
-
-	function Uint8Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' );
-		return new Uint8BufferAttribute( array, itemSize );
-
-	}
-
-	function Uint8ClampedAttribute( array, itemSize ) {
-
-		console.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' );
-		return new Uint8ClampedBufferAttribute( array, itemSize );
-
-	}
-
-	function Int16Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' );
-		return new Int16BufferAttribute( array, itemSize );
-
-	}
-
-	function Uint16Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' );
-		return new Uint16BufferAttribute( array, itemSize );
-
-	}
-
-	function Int32Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' );
-		return new Int32BufferAttribute( array, itemSize );
-
-	}
-
-	function Uint32Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' );
-		return new Uint32BufferAttribute( array, itemSize );
-
-	}
-
-	function Float32Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' );
-		return new Float32BufferAttribute( array, itemSize );
-
-	}
-
-	function Float64Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' );
-		return new Float64BufferAttribute( array, itemSize );
-
-	}
-
-	//
-
-	Curve.create = function ( construct, getPoint ) {
-
-		console.log( 'THREE.Curve.create() has been deprecated' );
-
-		construct.prototype = Object.create( Curve.prototype );
-		construct.prototype.constructor = construct;
-		construct.prototype.getPoint = getPoint;
-
-		return construct;
-
-	};
-
-	//
-
-	Object.assign( CurvePath.prototype, {
-
-		createPointsGeometry: function ( divisions ) {
-
-			console.warn( 'THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
-
-			// generate geometry from path points (for Line or Points objects)
-
-			var pts = this.getPoints( divisions );
-			return this.createGeometry( pts );
-
-		},
-
-		createSpacedPointsGeometry: function ( divisions ) {
-
-			console.warn( 'THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
-
-			// generate geometry from equidistant sampling along the path
-
-			var pts = this.getSpacedPoints( divisions );
-			return this.createGeometry( pts );
-
-		},
-
-		createGeometry: function ( points ) {
-
-			console.warn( 'THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
-
-			var geometry = new Geometry();
-
-			for ( var i = 0, l = points.length; i < l; i ++ ) {
-
-				var point = points[ i ];
-				geometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );
-
-			}
-
-			return geometry;
-
-		}
-
-	} );
-
-	//
-
-	Object.assign( Path.prototype, {
-
-		fromPoints: function ( points ) {
-
-			console.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' );
-			this.setFromPoints( points );
-
-		}
-
-	} );
-
-	//
-
-	function ClosedSplineCurve3( points ) {
-
-		console.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );
-
-		CatmullRomCurve3.call( this, points );
-		this.type = 'catmullrom';
-		this.closed = true;
-
-	}
-
-	ClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );
-
-	//
-
-	function SplineCurve3( points ) {
-
-		console.warn( 'THREE.SplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );
-
-		CatmullRomCurve3.call( this, points );
-		this.type = 'catmullrom';
-
-	}
-
-	SplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );
-
-	//
-
-	function Spline( points ) {
-
-		console.warn( 'THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.' );
-
-		CatmullRomCurve3.call( this, points );
-		this.type = 'catmullrom';
-
-	}
-
-	Spline.prototype = Object.create( CatmullRomCurve3.prototype );
-
-	Object.assign( Spline.prototype, {
-
-		initFromArray: function ( /* a */ ) {
-
-			console.error( 'THREE.Spline: .initFromArray() has been removed.' );
-
-		},
-		getControlPointsArray: function ( /* optionalTarget */ ) {
-
-			console.error( 'THREE.Spline: .getControlPointsArray() has been removed.' );
-
-		},
-		reparametrizeByArcLength: function ( /* samplingCoef */ ) {
-
-			console.error( 'THREE.Spline: .reparametrizeByArcLength() has been removed.' );
-
-		}
-
-	} );
-
-	//
-
-	function AxisHelper( size ) {
-
-		console.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' );
-		return new AxesHelper( size );
-
-	}
-
-	function BoundingBoxHelper( object, color ) {
-
-		console.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' );
-		return new BoxHelper( object, color );
-
-	}
-
-	function EdgesHelper( object, hex ) {
-
-		console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );
-		return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );
-
-	}
-
-	GridHelper.prototype.setColors = function () {
-
-		console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );
-
-	};
-
-	SkeletonHelper.prototype.update = function () {
-
-		console.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' );
-
-	};
-
-	function WireframeHelper( object, hex ) {
-
-		console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );
-		return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );
-
-	}
-
-	//
-
-	Object.assign( Loader.prototype, {
-
-		extractUrlBase: function ( url ) {
-
-			console.warn( 'THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.' );
-			return LoaderUtils.extractUrlBase( url );
-
-		}
-
-	} );
-
-	function XHRLoader( manager ) {
-
-		console.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' );
-		return new FileLoader( manager );
-
-	}
-
-	function BinaryTextureLoader( manager ) {
-
-		console.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' );
-		return new DataTextureLoader( manager );
-
-	}
-
-	Object.assign( ObjectLoader.prototype, {
-
-		setTexturePath: function ( value ) {
-
-			console.warn( 'THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath().' );
-			return this.setResourcePath( value );
-
-		}
-
-	} );
-
-	//
-
-	Object.assign( Box2.prototype, {
-
-		center: function ( optionalTarget ) {
-
-			console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );
-			return this.getCenter( optionalTarget );
-
-		},
-		empty: function () {
-
-			console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );
-			return this.isEmpty();
-
-		},
-		isIntersectionBox: function ( box ) {
-
-			console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );
-			return this.intersectsBox( box );
-
-		},
-		size: function ( optionalTarget ) {
-
-			console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );
-			return this.getSize( optionalTarget );
-
-		}
-	} );
-
-	Object.assign( Box3.prototype, {
-
-		center: function ( optionalTarget ) {
-
-			console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );
-			return this.getCenter( optionalTarget );
-
-		},
-		empty: function () {
-
-			console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );
-			return this.isEmpty();
-
-		},
-		isIntersectionBox: function ( box ) {
-
-			console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );
-			return this.intersectsBox( box );
-
-		},
-		isIntersectionSphere: function ( sphere ) {
-
-			console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
-			return this.intersectsSphere( sphere );
-
-		},
-		size: function ( optionalTarget ) {
-
-			console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );
-			return this.getSize( optionalTarget );
-
-		}
-	} );
-
-	Line3.prototype.center = function ( optionalTarget ) {
-
-		console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );
-		return this.getCenter( optionalTarget );
-
-	};
-
-	Object.assign( _Math, {
-
-		random16: function () {
-
-			console.warn( 'THREE.Math: .random16() has been deprecated. Use Math.random() instead.' );
-			return Math.random();
-
-		},
-
-		nearestPowerOfTwo: function ( value ) {
-
-			console.warn( 'THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().' );
-			return _Math.floorPowerOfTwo( value );
-
-		},
-
-		nextPowerOfTwo: function ( value ) {
-
-			console.warn( 'THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().' );
-			return _Math.ceilPowerOfTwo( value );
-
-		}
-
-	} );
-
-	Object.assign( Matrix3.prototype, {
-
-		flattenToArrayOffset: function ( array, offset ) {
-
-			console.warn( "THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
-			return this.toArray( array, offset );
-
-		},
-		multiplyVector3: function ( vector ) {
-
-			console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );
-			return vector.applyMatrix3( this );
-
-		},
-		multiplyVector3Array: function ( /* a */ ) {
-
-			console.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' );
-
-		},
-		applyToBuffer: function ( buffer /*, offset, length */ ) {
-
-			console.warn( 'THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
-			return this.applyToBufferAttribute( buffer );
-
-		},
-		applyToVector3Array: function ( /* array, offset, length */ ) {
-
-			console.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' );
-
-		}
-
-	} );
-
-	Object.assign( Matrix4.prototype, {
-
-		extractPosition: function ( m ) {
-
-			console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );
-			return this.copyPosition( m );
-
-		},
-		flattenToArrayOffset: function ( array, offset ) {
-
-			console.warn( "THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
-			return this.toArray( array, offset );
-
-		},
-		getPosition: function () {
-
-			var v1;
-
-			return function getPosition() {
-
-				if ( v1 === undefined ) v1 = new Vector3();
-				console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );
-				return v1.setFromMatrixColumn( this, 3 );
-
-			};
-
-		}(),
-		setRotationFromQuaternion: function ( q ) {
-
-			console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );
-			return this.makeRotationFromQuaternion( q );
-
-		},
-		multiplyToArray: function () {
-
-			console.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' );
-
-		},
-		multiplyVector3: function ( vector ) {
-
-			console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
-			return vector.applyMatrix4( this );
-
-		},
-		multiplyVector4: function ( vector ) {
-
-			console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
-			return vector.applyMatrix4( this );
-
-		},
-		multiplyVector3Array: function ( /* a */ ) {
-
-			console.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' );
-
-		},
-		rotateAxis: function ( v ) {
-
-			console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );
-			v.transformDirection( this );
-
-		},
-		crossVector: function ( vector ) {
-
-			console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
-			return vector.applyMatrix4( this );
-
-		},
-		translate: function () {
-
-			console.error( 'THREE.Matrix4: .translate() has been removed.' );
-
-		},
-		rotateX: function () {
-
-			console.error( 'THREE.Matrix4: .rotateX() has been removed.' );
-
-		},
-		rotateY: function () {
-
-			console.error( 'THREE.Matrix4: .rotateY() has been removed.' );
-
-		},
-		rotateZ: function () {
-
-			console.error( 'THREE.Matrix4: .rotateZ() has been removed.' );
-
-		},
-		rotateByAxis: function () {
-
-			console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );
-
-		},
-		applyToBuffer: function ( buffer /*, offset, length */ ) {
-
-			console.warn( 'THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
-			return this.applyToBufferAttribute( buffer );
-
-		},
-		applyToVector3Array: function ( /* array, offset, length */ ) {
-
-			console.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' );
-
-		},
-		makeFrustum: function ( left, right, bottom, top, near, far ) {
-
-			console.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' );
-			return this.makePerspective( left, right, top, bottom, near, far );
-
-		}
-
-	} );
-
-	Plane.prototype.isIntersectionLine = function ( line ) {
-
-		console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );
-		return this.intersectsLine( line );
-
-	};
-
-	Quaternion.prototype.multiplyVector3 = function ( vector ) {
-
-		console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
-		return vector.applyQuaternion( this );
-
-	};
-
-	Object.assign( Ray.prototype, {
-
-		isIntersectionBox: function ( box ) {
-
-			console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );
-			return this.intersectsBox( box );
-
-		},
-		isIntersectionPlane: function ( plane ) {
-
-			console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );
-			return this.intersectsPlane( plane );
-
-		},
-		isIntersectionSphere: function ( sphere ) {
-
-			console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
-			return this.intersectsSphere( sphere );
-
-		}
-
-	} );
-
-	Object.assign( Triangle.prototype, {
-
-		area: function () {
-
-			console.warn( 'THREE.Triangle: .area() has been renamed to .getArea().' );
-			return this.getArea();
-
-		},
-		barycoordFromPoint: function ( point, target ) {
-
-			console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );
-			return this.getBarycoord( point, target );
-
-		},
-		midpoint: function ( target ) {
-
-			console.warn( 'THREE.Triangle: .midpoint() has been renamed to .getMidpoint().' );
-			return this.getMidpoint( target );
-
-		},
-		normal: function ( target ) {
-
-			console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );
-			return this.getNormal( target );
-
-		},
-		plane: function ( target ) {
-
-			console.warn( 'THREE.Triangle: .plane() has been renamed to .getPlane().' );
-			return this.getPlane( target );
-
-		}
-
-	} );
-
-	Object.assign( Triangle, {
-
-		barycoordFromPoint: function ( point, a, b, c, target ) {
-
-			console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' );
-			return Triangle.getBarycoord( point, a, b, c, target );
-
-		},
-		normal: function ( a, b, c, target ) {
-
-			console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' );
-			return Triangle.getNormal( a, b, c, target );
-
-		}
-
-	} );
-
-	Object.assign( Shape.prototype, {
-
-		extractAllPoints: function ( divisions ) {
-
-			console.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' );
-			return this.extractPoints( divisions );
-
-		},
-		extrude: function ( options ) {
-
-			console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );
-			return new ExtrudeGeometry( this, options );
-
-		},
-		makeGeometry: function ( options ) {
-
-			console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );
-			return new ShapeGeometry( this, options );
-
-		}
-
-	} );
-
-	Object.assign( Vector2.prototype, {
-
-		fromAttribute: function ( attribute, index, offset ) {
-
-			console.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' );
-			return this.fromBufferAttribute( attribute, index, offset );
-
-		},
-		distanceToManhattan: function ( v ) {
-
-			console.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
-			return this.manhattanDistanceTo( v );
-
-		},
-		lengthManhattan: function () {
-
-			console.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' );
-			return this.manhattanLength();
-
-		}
-
-	} );
-
-	Object.assign( Vector3.prototype, {
-
-		setEulerFromRotationMatrix: function () {
-
-			console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );
-
-		},
-		setEulerFromQuaternion: function () {
-
-			console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );
-
-		},
-		getPositionFromMatrix: function ( m ) {
-
-			console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );
-			return this.setFromMatrixPosition( m );
-
-		},
-		getScaleFromMatrix: function ( m ) {
-
-			console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );
-			return this.setFromMatrixScale( m );
-
-		},
-		getColumnFromMatrix: function ( index, matrix ) {
-
-			console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );
-			return this.setFromMatrixColumn( matrix, index );
-
-		},
-		applyProjection: function ( m ) {
-
-			console.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' );
-			return this.applyMatrix4( m );
-
-		},
-		fromAttribute: function ( attribute, index, offset ) {
-
-			console.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' );
-			return this.fromBufferAttribute( attribute, index, offset );
-
-		},
-		distanceToManhattan: function ( v ) {
-
-			console.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
-			return this.manhattanDistanceTo( v );
-
-		},
-		lengthManhattan: function () {
-
-			console.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' );
-			return this.manhattanLength();
-
-		}
-
-	} );
-
-	Object.assign( Vector4.prototype, {
-
-		fromAttribute: function ( attribute, index, offset ) {
-
-			console.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' );
-			return this.fromBufferAttribute( attribute, index, offset );
-
-		},
-		lengthManhattan: function () {
-
-			console.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' );
-			return this.manhattanLength();
-
-		}
-
-	} );
-
-	//
-
-	Object.assign( Geometry.prototype, {
-
-		computeTangents: function () {
-
-			console.error( 'THREE.Geometry: .computeTangents() has been removed.' );
-
-		},
-		computeLineDistances: function () {
-
-			console.error( 'THREE.Geometry: .computeLineDistances() has been removed. Use THREE.Line.computeLineDistances() instead.' );
-
-		}
-
-	} );
-
-	Object.assign( Object3D.prototype, {
-
-		getChildByName: function ( name ) {
-
-			console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );
-			return this.getObjectByName( name );
-
-		},
-		renderDepth: function () {
-
-			console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );
-
-		},
-		translate: function ( distance, axis ) {
-
-			console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );
-			return this.translateOnAxis( axis, distance );
-
-		},
-		getWorldRotation: function () {
-
-			console.error( 'THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.' );
-
-		}
-
-	} );
-
-	Object.defineProperties( Object3D.prototype, {
-
-		eulerOrder: {
-			get: function () {
-
-				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
-				return this.rotation.order;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
-				this.rotation.order = value;
-
-			}
-		},
-		useQuaternion: {
-			get: function () {
-
-				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
-
-			}
-		}
-
-	} );
-
-	Object.defineProperties( LOD.prototype, {
-
-		objects: {
-			get: function () {
-
-				console.warn( 'THREE.LOD: .objects has been renamed to .levels.' );
-				return this.levels;
-
-			}
-		}
-
-	} );
-
-	Object.defineProperty( Skeleton.prototype, 'useVertexTexture', {
-
-		get: function () {
-
-			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );
-
-		},
-		set: function () {
-
-			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );
-
-		}
-
-	} );
-
-	SkinnedMesh.prototype.initBones = function () {
-
-		console.error( 'THREE.SkinnedMesh: initBones() has been removed.' );
-
-	};
-
-	Object.defineProperty( Curve.prototype, '__arcLengthDivisions', {
-
-		get: function () {
-
-			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
-			return this.arcLengthDivisions;
-
-		},
-		set: function ( value ) {
-
-			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
-			this.arcLengthDivisions = value;
-
-		}
-
-	} );
-
-	//
-
-	PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {
-
-		console.warn( "THREE.PerspectiveCamera.setLens is deprecated. " +
-				"Use .setFocalLength and .filmGauge for a photographic setup." );
-
-		if ( filmGauge !== undefined ) this.filmGauge = filmGauge;
-		this.setFocalLength( focalLength );
-
-	};
-
-	//
-
-	Object.defineProperties( Light.prototype, {
-		onlyShadow: {
-			set: function () {
-
-				console.warn( 'THREE.Light: .onlyShadow has been removed.' );
-
-			}
-		},
-		shadowCameraFov: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );
-				this.shadow.camera.fov = value;
-
-			}
-		},
-		shadowCameraLeft: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );
-				this.shadow.camera.left = value;
-
-			}
-		},
-		shadowCameraRight: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );
-				this.shadow.camera.right = value;
-
-			}
-		},
-		shadowCameraTop: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );
-				this.shadow.camera.top = value;
-
-			}
-		},
-		shadowCameraBottom: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );
-				this.shadow.camera.bottom = value;
-
-			}
-		},
-		shadowCameraNear: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );
-				this.shadow.camera.near = value;
-
-			}
-		},
-		shadowCameraFar: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );
-				this.shadow.camera.far = value;
-
-			}
-		},
-		shadowCameraVisible: {
-			set: function () {
-
-				console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );
-
-			}
-		},
-		shadowBias: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );
-				this.shadow.bias = value;
-
-			}
-		},
-		shadowDarkness: {
-			set: function () {
-
-				console.warn( 'THREE.Light: .shadowDarkness has been removed.' );
-
-			}
-		},
-		shadowMapWidth: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );
-				this.shadow.mapSize.width = value;
-
-			}
-		},
-		shadowMapHeight: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );
-				this.shadow.mapSize.height = value;
-
-			}
-		}
-	} );
-
-	//
-
-	Object.defineProperties( BufferAttribute.prototype, {
-
-		length: {
-			get: function () {
-
-				console.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' );
-				return this.array.length;
-
-			}
-		},
-		copyIndicesArray: function ( /* indices */ ) {
-
-			console.error( 'THREE.BufferAttribute: .copyIndicesArray() has been removed.' );
-
-		}
-
-	} );
-
-	Object.assign( BufferGeometry.prototype, {
-
-		addIndex: function ( index ) {
-
-			console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );
-			this.setIndex( index );
-
-		},
-		addDrawCall: function ( start, count, indexOffset ) {
-
-			if ( indexOffset !== undefined ) {
-
-				console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );
-
-			}
-			console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );
-			this.addGroup( start, count );
-
-		},
-		clearDrawCalls: function () {
-
-			console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );
-			this.clearGroups();
-
-		},
-		computeTangents: function () {
-
-			console.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );
-
-		},
-		computeOffsets: function () {
-
-			console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );
-
-		}
-
-	} );
-
-	Object.defineProperties( BufferGeometry.prototype, {
-
-		drawcalls: {
-			get: function () {
-
-				console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );
-				return this.groups;
-
-			}
-		},
-		offsets: {
-			get: function () {
-
-				console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );
-				return this.groups;
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.assign( ExtrudeBufferGeometry.prototype, {
-
-		getArrays: function () {
-
-			console.error( 'THREE.ExtrudeBufferGeometry: .getArrays() has been removed.' );
-
-		},
-
-		addShapeList: function () {
-
-			console.error( 'THREE.ExtrudeBufferGeometry: .addShapeList() has been removed.' );
-
-		},
-
-		addShape: function () {
-
-			console.error( 'THREE.ExtrudeBufferGeometry: .addShape() has been removed.' );
-
-		}
-
-	} );
-
-	//
-
-	Object.defineProperties( Uniform.prototype, {
-
-		dynamic: {
-			set: function () {
-
-				console.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' );
-
-			}
-		},
-		onUpdate: {
-			value: function () {
-
-				console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );
-				return this;
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.defineProperties( Material.prototype, {
-
-		wrapAround: {
-			get: function () {
-
-				console.warn( 'THREE.Material: .wrapAround has been removed.' );
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.Material: .wrapAround has been removed.' );
-
-			}
-		},
-
-		overdraw: {
-			get: function () {
-
-				console.warn( 'THREE.Material: .overdraw has been removed.' );
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.Material: .overdraw has been removed.' );
-
-			}
-		},
-
-		wrapRGB: {
-			get: function () {
-
-				console.warn( 'THREE.Material: .wrapRGB has been removed.' );
-				return new Color();
-
-			}
-		},
-
-		shading: {
-			get: function () {
-
-				console.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
-				this.flatShading = ( value === FlatShading );
-
-			}
-		}
-
-	} );
-
-	Object.defineProperties( MeshPhongMaterial.prototype, {
-
-		metal: {
-			get: function () {
-
-				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );
-				return false;
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );
-
-			}
-		}
-
-	} );
-
-	Object.defineProperties( ShaderMaterial.prototype, {
-
-		derivatives: {
-			get: function () {
-
-				console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
-				return this.extensions.derivatives;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
-				this.extensions.derivatives = value;
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.assign( WebGLRenderer.prototype, {
-
-		clearTarget: function ( renderTarget, color, depth, stencil ) {
-
-			console.warn( 'THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead.' );
-			this.setRenderTarget( renderTarget );
-			this.clear( color, depth, stencil );
-
-		},
-		animate: function ( callback ) {
-
-			console.warn( 'THREE.WebGLRenderer: .animate() is now .setAnimationLoop().' );
-			this.setAnimationLoop( callback );
-
-		},
-		getCurrentRenderTarget: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' );
-			return this.getRenderTarget();
-
-		},
-		getMaxAnisotropy: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' );
-			return this.capabilities.getMaxAnisotropy();
-
-		},
-		getPrecision: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' );
-			return this.capabilities.precision;
-
-		},
-		resetGLState: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' );
-			return this.state.reset();
-
-		},
-		supportsFloatTextures: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' );
-			return this.extensions.get( 'OES_texture_float' );
-
-		},
-		supportsHalfFloatTextures: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' );
-			return this.extensions.get( 'OES_texture_half_float' );
-
-		},
-		supportsStandardDerivatives: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' );
-			return this.extensions.get( 'OES_standard_derivatives' );
-
-		},
-		supportsCompressedTextureS3TC: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' );
-			return this.extensions.get( 'WEBGL_compressed_texture_s3tc' );
-
-		},
-		supportsCompressedTexturePVRTC: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' );
-			return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );
-
-		},
-		supportsBlendMinMax: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' );
-			return this.extensions.get( 'EXT_blend_minmax' );
-
-		},
-		supportsVertexTextures: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' );
-			return this.capabilities.vertexTextures;
-
-		},
-		supportsInstancedArrays: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' );
-			return this.extensions.get( 'ANGLE_instanced_arrays' );
-
-		},
-		enableScissorTest: function ( boolean ) {
-
-			console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );
-			this.setScissorTest( boolean );
-
-		},
-		initMaterial: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );
-
-		},
-		addPrePlugin: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );
-
-		},
-		addPostPlugin: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );
-
-		},
-		updateShadowMap: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );
-
-		},
-		setFaceCulling: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .setFaceCulling() has been removed.' );
-
-		},
-		allocTextureUnit: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .allocTextureUnit() has been removed.' );
-
-		},
-		setTexture: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .setTexture() has been removed.' );
-
-		},
-		setTexture2D: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .setTexture2D() has been removed.' );
-
-		},
-		setTextureCube: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .setTextureCube() has been removed.' );
-
-		}
-
-	} );
-
-	Object.defineProperties( WebGLRenderer.prototype, {
-
-		shadowMapEnabled: {
-			get: function () {
-
-				return this.shadowMap.enabled;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );
-				this.shadowMap.enabled = value;
-
-			}
-		},
-		shadowMapType: {
-			get: function () {
-
-				return this.shadowMap.type;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );
-				this.shadowMap.type = value;
-
-			}
-		},
-		shadowMapCullFace: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );
-				return undefined;
-
-			},
-			set: function ( /* value */ ) {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );
-
-			}
-		}
-	} );
-
-	Object.defineProperties( WebGLShadowMap.prototype, {
-
-		cullFace: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );
-				return undefined;
-
-			},
-			set: function ( /* cullFace */ ) {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );
-
-			}
-		},
-		renderReverseSided: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );
-				return undefined;
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );
-
-			}
-		},
-		renderSingleSided: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );
-				return undefined;
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.defineProperties( WebGLRenderTargetCube.prototype, {
-
-		activeCubeFace: {
-			set: function ( /* value */ ) {
-
-				console.warn( 'THREE.WebGLRenderTargetCube: .activeCubeFace has been removed. It is now the second parameter of WebGLRenderer.setRenderTarget().' );
-
-			}
-		},
-		activeMipMapLevel: {
-			set: function ( /* value */ ) {
-
-				console.warn( 'THREE.WebGLRenderTargetCube: .activeMipMapLevel has been removed. It is now the third parameter of WebGLRenderer.setRenderTarget().' );
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.defineProperties( WebGLRenderTarget.prototype, {
-
-		wrapS: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
-				return this.texture.wrapS;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
-				this.texture.wrapS = value;
-
-			}
-		},
-		wrapT: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
-				return this.texture.wrapT;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
-				this.texture.wrapT = value;
-
-			}
-		},
-		magFilter: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
-				return this.texture.magFilter;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
-				this.texture.magFilter = value;
-
-			}
-		},
-		minFilter: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
-				return this.texture.minFilter;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
-				this.texture.minFilter = value;
-
-			}
-		},
-		anisotropy: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
-				return this.texture.anisotropy;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
-				this.texture.anisotropy = value;
-
-			}
-		},
-		offset: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
-				return this.texture.offset;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
-				this.texture.offset = value;
-
-			}
-		},
-		repeat: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
-				return this.texture.repeat;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
-				this.texture.repeat = value;
-
-			}
-		},
-		format: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
-				return this.texture.format;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
-				this.texture.format = value;
-
-			}
-		},
-		type: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
-				return this.texture.type;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
-				this.texture.type = value;
-
-			}
-		},
-		generateMipmaps: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
-				return this.texture.generateMipmaps;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
-				this.texture.generateMipmaps = value;
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.defineProperties( WebVRManager.prototype, {
-
-		standing: {
-			set: function ( /* value */ ) {
-
-				console.warn( 'THREE.WebVRManager: .standing has been removed.' );
-
-			}
-		},
-		userHeight: {
-			set: function ( /* value */ ) {
-
-				console.warn( 'THREE.WebVRManager: .userHeight has been removed.' );
-
-			}
-		}
-
-	} );
-
-	//
-
-	Audio.prototype.load = function ( file ) {
-
-		console.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' );
-		var scope = this;
-		var audioLoader = new AudioLoader();
-		audioLoader.load( file, function ( buffer ) {
-
-			scope.setBuffer( buffer );
-
-		} );
-		return this;
-
-	};
-
-	AudioAnalyser.prototype.getData = function () {
-
-		console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );
-		return this.getFrequencyData();
-
-	};
-
-	//
-
-	CubeCamera.prototype.updateCubeMap = function ( renderer, scene ) {
-
-		console.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' );
-		return this.update( renderer, scene );
-
-	};
-
-	//
-
-	var GeometryUtils = {
-
-		merge: function ( geometry1, geometry2, materialIndexOffset ) {
-
-			console.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );
-			var matrix;
-
-			if ( geometry2.isMesh ) {
-
-				geometry2.matrixAutoUpdate && geometry2.updateMatrix();
-
-				matrix = geometry2.matrix;
-				geometry2 = geometry2.geometry;
-
-			}
-
-			geometry1.merge( geometry2, matrix, materialIndexOffset );
-
-		},
-
-		center: function ( geometry ) {
-
-			console.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );
-			return geometry.center();
-
-		}
-
-	};
-
-	ImageUtils.crossOrigin = undefined;
-
-	ImageUtils.loadTexture = function ( url, mapping, onLoad, onError ) {
-
-		console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );
-
-		var loader = new TextureLoader();
-		loader.setCrossOrigin( this.crossOrigin );
-
-		var texture = loader.load( url, onLoad, undefined, onError );
-
-		if ( mapping ) texture.mapping = mapping;
-
-		return texture;
-
-	};
-
-	ImageUtils.loadTextureCube = function ( urls, mapping, onLoad, onError ) {
-
-		console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );
-
-		var loader = new CubeTextureLoader();
-		loader.setCrossOrigin( this.crossOrigin );
-
-		var texture = loader.load( urls, onLoad, undefined, onError );
-
-		if ( mapping ) texture.mapping = mapping;
-
-		return texture;
-
-	};
-
-	ImageUtils.loadCompressedTexture = function () {
-
-		console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );
-
-	};
-
-	ImageUtils.loadCompressedTextureCube = function () {
-
-		console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );
-
-	};
-
-	//
-
-	function CanvasRenderer() {
-
-		console.error( 'THREE.CanvasRenderer has been removed' );
-
-	}
-
-	//
-
-	function JSONLoader() {
-
-		console.error( 'THREE.JSONLoader has been removed.' );
-
-	}
-
-	//
-
-	var SceneUtils = {
-
-		createMultiMaterialObject: function ( /* geometry, materials */ ) {
-
-			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );
-
-		},
-
-		detach: function ( /* child, parent, scene */ ) {
-
-			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );
-
-		},
-
-		attach: function ( /* child, scene, parent */ ) {
-
-			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );
-
-		}
-
-	};
-
-	//
-
-	function LensFlare() {
-
-		console.error( 'THREE.LensFlare has been moved to /examples/js/objects/Lensflare.js' );
-
-	}
-
-	exports.ACESFilmicToneMapping = ACESFilmicToneMapping;
-	exports.AddEquation = AddEquation;
-	exports.AddOperation = AddOperation;
-	exports.AdditiveBlending = AdditiveBlending;
-	exports.AlphaFormat = AlphaFormat;
-	exports.AlwaysDepth = AlwaysDepth;
-	exports.AmbientLight = AmbientLight;
-	exports.AmbientLightProbe = AmbientLightProbe;
-	exports.AnimationClip = AnimationClip;
-	exports.AnimationLoader = AnimationLoader;
-	exports.AnimationMixer = AnimationMixer;
-	exports.AnimationObjectGroup = AnimationObjectGroup;
-	exports.AnimationUtils = AnimationUtils;
-	exports.ArcCurve = ArcCurve;
-	exports.ArrayCamera = ArrayCamera;
-	exports.ArrowHelper = ArrowHelper;
-	exports.Audio = Audio;
-	exports.AudioAnalyser = AudioAnalyser;
-	exports.AudioContext = AudioContext;
-	exports.AudioListener = AudioListener;
-	exports.AudioLoader = AudioLoader;
-	exports.AxesHelper = AxesHelper;
-	exports.AxisHelper = AxisHelper;
-	exports.BackSide = BackSide;
-	exports.BasicDepthPacking = BasicDepthPacking;
-	exports.BasicShadowMap = BasicShadowMap;
-	exports.BinaryTextureLoader = BinaryTextureLoader;
-	exports.Bone = Bone;
-	exports.BooleanKeyframeTrack = BooleanKeyframeTrack;
-	exports.BoundingBoxHelper = BoundingBoxHelper;
-	exports.Box2 = Box2;
-	exports.Box3 = Box3;
-	exports.Box3Helper = Box3Helper;
-	exports.BoxBufferGeometry = BoxBufferGeometry;
-	exports.BoxGeometry = BoxGeometry;
-	exports.BoxHelper = BoxHelper;
-	exports.BufferAttribute = BufferAttribute;
-	exports.BufferGeometry = BufferGeometry;
-	exports.BufferGeometryLoader = BufferGeometryLoader;
-	exports.ByteType = ByteType;
-	exports.Cache = Cache;
-	exports.Camera = Camera;
-	exports.CameraHelper = CameraHelper;
-	exports.CanvasRenderer = CanvasRenderer;
-	exports.CanvasTexture = CanvasTexture;
-	exports.CatmullRomCurve3 = CatmullRomCurve3;
-	exports.CineonToneMapping = CineonToneMapping;
-	exports.CircleBufferGeometry = CircleBufferGeometry;
-	exports.CircleGeometry = CircleGeometry;
-	exports.ClampToEdgeWrapping = ClampToEdgeWrapping;
-	exports.Clock = Clock;
-	exports.ClosedSplineCurve3 = ClosedSplineCurve3;
-	exports.Color = Color;
-	exports.ColorKeyframeTrack = ColorKeyframeTrack;
-	exports.CompressedTexture = CompressedTexture;
-	exports.CompressedTextureLoader = CompressedTextureLoader;
-	exports.ConeBufferGeometry = ConeBufferGeometry;
-	exports.ConeGeometry = ConeGeometry;
-	exports.CubeCamera = CubeCamera;
-	exports.CubeGeometry = BoxGeometry;
-	exports.CubeReflectionMapping = CubeReflectionMapping;
-	exports.CubeRefractionMapping = CubeRefractionMapping;
-	exports.CubeTexture = CubeTexture;
-	exports.CubeTextureLoader = CubeTextureLoader;
-	exports.CubeUVReflectionMapping = CubeUVReflectionMapping;
-	exports.CubeUVRefractionMapping = CubeUVRefractionMapping;
-	exports.CubicBezierCurve = CubicBezierCurve;
-	exports.CubicBezierCurve3 = CubicBezierCurve3;
-	exports.CubicInterpolant = CubicInterpolant;
-	exports.CullFaceBack = CullFaceBack;
-	exports.CullFaceFront = CullFaceFront;
-	exports.CullFaceFrontBack = CullFaceFrontBack;
-	exports.CullFaceNone = CullFaceNone;
-	exports.Curve = Curve;
-	exports.CurvePath = CurvePath;
-	exports.CustomBlending = CustomBlending;
-	exports.CylinderBufferGeometry = CylinderBufferGeometry;
-	exports.CylinderGeometry = CylinderGeometry;
-	exports.Cylindrical = Cylindrical;
-	exports.DataTexture = DataTexture;
-	exports.DataTexture2DArray = DataTexture2DArray;
-	exports.DataTexture3D = DataTexture3D;
-	exports.DataTextureLoader = DataTextureLoader;
-	exports.DefaultLoadingManager = DefaultLoadingManager;
-	exports.DepthFormat = DepthFormat;
-	exports.DepthStencilFormat = DepthStencilFormat;
-	exports.DepthTexture = DepthTexture;
-	exports.DirectionalLight = DirectionalLight;
-	exports.DirectionalLightHelper = DirectionalLightHelper;
-	exports.DirectionalLightShadow = DirectionalLightShadow;
-	exports.DiscreteInterpolant = DiscreteInterpolant;
-	exports.DodecahedronBufferGeometry = DodecahedronBufferGeometry;
-	exports.DodecahedronGeometry = DodecahedronGeometry;
-	exports.DoubleSide = DoubleSide;
-	exports.DstAlphaFactor = DstAlphaFactor;
-	exports.DstColorFactor = DstColorFactor;
-	exports.DynamicBufferAttribute = DynamicBufferAttribute;
-	exports.EdgesGeometry = EdgesGeometry;
-	exports.EdgesHelper = EdgesHelper;
-	exports.EllipseCurve = EllipseCurve;
-	exports.EqualDepth = EqualDepth;
-	exports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;
-	exports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;
-	exports.Euler = Euler;
-	exports.EventDispatcher = EventDispatcher;
-	exports.ExtrudeBufferGeometry = ExtrudeBufferGeometry;
-	exports.ExtrudeGeometry = ExtrudeGeometry;
-	exports.Face3 = Face3;
-	exports.Face4 = Face4;
-	exports.FaceColors = FaceColors;
-	exports.FaceNormalsHelper = FaceNormalsHelper;
-	exports.FileLoader = FileLoader;
-	exports.FlatShading = FlatShading;
-	exports.Float32Attribute = Float32Attribute;
-	exports.Float32BufferAttribute = Float32BufferAttribute;
-	exports.Float64Attribute = Float64Attribute;
-	exports.Float64BufferAttribute = Float64BufferAttribute;
-	exports.FloatType = FloatType;
-	exports.Fog = Fog;
-	exports.FogExp2 = FogExp2;
-	exports.Font = Font;
-	exports.FontLoader = FontLoader;
-	exports.FrontFaceDirectionCCW = FrontFaceDirectionCCW;
-	exports.FrontFaceDirectionCW = FrontFaceDirectionCW;
-	exports.FrontSide = FrontSide;
-	exports.Frustum = Frustum;
-	exports.GammaEncoding = GammaEncoding;
-	exports.Geometry = Geometry;
-	exports.GeometryUtils = GeometryUtils;
-	exports.GreaterDepth = GreaterDepth;
-	exports.GreaterEqualDepth = GreaterEqualDepth;
-	exports.GridHelper = GridHelper;
-	exports.Group = Group;
-	exports.HalfFloatType = HalfFloatType;
-	exports.HemisphereLight = HemisphereLight;
-	exports.HemisphereLightHelper = HemisphereLightHelper;
-	exports.HemisphereLightProbe = HemisphereLightProbe;
-	exports.IcosahedronBufferGeometry = IcosahedronBufferGeometry;
-	exports.IcosahedronGeometry = IcosahedronGeometry;
-	exports.ImageBitmapLoader = ImageBitmapLoader;
-	exports.ImageLoader = ImageLoader;
-	exports.ImageUtils = ImageUtils;
-	exports.ImmediateRenderObject = ImmediateRenderObject;
-	exports.InstancedBufferAttribute = InstancedBufferAttribute;
-	exports.InstancedBufferGeometry = InstancedBufferGeometry;
-	exports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;
-	exports.Int16Attribute = Int16Attribute;
-	exports.Int16BufferAttribute = Int16BufferAttribute;
-	exports.Int32Attribute = Int32Attribute;
-	exports.Int32BufferAttribute = Int32BufferAttribute;
-	exports.Int8Attribute = Int8Attribute;
-	exports.Int8BufferAttribute = Int8BufferAttribute;
-	exports.IntType = IntType;
-	exports.InterleavedBuffer = InterleavedBuffer;
-	exports.InterleavedBufferAttribute = InterleavedBufferAttribute;
-	exports.Interpolant = Interpolant;
-	exports.InterpolateDiscrete = InterpolateDiscrete;
-	exports.InterpolateLinear = InterpolateLinear;
-	exports.InterpolateSmooth = InterpolateSmooth;
-	exports.JSONLoader = JSONLoader;
-	exports.KeyframeTrack = KeyframeTrack;
-	exports.LOD = LOD;
-	exports.LatheBufferGeometry = LatheBufferGeometry;
-	exports.LatheGeometry = LatheGeometry;
-	exports.Layers = Layers;
-	exports.LensFlare = LensFlare;
-	exports.LessDepth = LessDepth;
-	exports.LessEqualDepth = LessEqualDepth;
-	exports.Light = Light;
-	exports.LightProbe = LightProbe;
-	exports.LightProbeHelper = LightProbeHelper;
-	exports.LightShadow = LightShadow;
-	exports.Line = Line;
-	exports.Line3 = Line3;
-	exports.LineBasicMaterial = LineBasicMaterial;
-	exports.LineCurve = LineCurve;
-	exports.LineCurve3 = LineCurve3;
-	exports.LineDashedMaterial = LineDashedMaterial;
-	exports.LineLoop = LineLoop;
-	exports.LinePieces = LinePieces;
-	exports.LineSegments = LineSegments;
-	exports.LineStrip = LineStrip;
-	exports.LinearEncoding = LinearEncoding;
-	exports.LinearFilter = LinearFilter;
-	exports.LinearInterpolant = LinearInterpolant;
-	exports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;
-	exports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;
-	exports.LinearToneMapping = LinearToneMapping;
-	exports.Loader = Loader;
-	exports.LoaderUtils = LoaderUtils;
-	exports.LoadingManager = LoadingManager;
-	exports.LogLuvEncoding = LogLuvEncoding;
-	exports.LoopOnce = LoopOnce;
-	exports.LoopPingPong = LoopPingPong;
-	exports.LoopRepeat = LoopRepeat;
-	exports.LuminanceAlphaFormat = LuminanceAlphaFormat;
-	exports.LuminanceFormat = LuminanceFormat;
-	exports.MOUSE = MOUSE;
-	exports.Material = Material;
-	exports.MaterialLoader = MaterialLoader;
-	exports.Math = _Math;
-	exports.Matrix3 = Matrix3;
-	exports.Matrix4 = Matrix4;
-	exports.MaxEquation = MaxEquation;
-	exports.Mesh = Mesh;
-	exports.MeshBasicMaterial = MeshBasicMaterial;
-	exports.MeshDepthMaterial = MeshDepthMaterial;
-	exports.MeshDistanceMaterial = MeshDistanceMaterial;
-	exports.MeshFaceMaterial = MeshFaceMaterial;
-	exports.MeshLambertMaterial = MeshLambertMaterial;
-	exports.MeshMatcapMaterial = MeshMatcapMaterial;
-	exports.MeshNormalMaterial = MeshNormalMaterial;
-	exports.MeshPhongMaterial = MeshPhongMaterial;
-	exports.MeshPhysicalMaterial = MeshPhysicalMaterial;
-	exports.MeshStandardMaterial = MeshStandardMaterial;
-	exports.MeshToonMaterial = MeshToonMaterial;
-	exports.MinEquation = MinEquation;
-	exports.MirroredRepeatWrapping = MirroredRepeatWrapping;
-	exports.MixOperation = MixOperation;
-	exports.MultiMaterial = MultiMaterial;
-	exports.MultiplyBlending = MultiplyBlending;
-	exports.MultiplyOperation = MultiplyOperation;
-	exports.NearestFilter = NearestFilter;
-	exports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;
-	exports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;
-	exports.NeverDepth = NeverDepth;
-	exports.NoBlending = NoBlending;
-	exports.NoColors = NoColors;
-	exports.NoToneMapping = NoToneMapping;
-	exports.NormalBlending = NormalBlending;
-	exports.NotEqualDepth = NotEqualDepth;
-	exports.NumberKeyframeTrack = NumberKeyframeTrack;
-	exports.Object3D = Object3D;
-	exports.ObjectLoader = ObjectLoader;
-	exports.ObjectSpaceNormalMap = ObjectSpaceNormalMap;
-	exports.OctahedronBufferGeometry = OctahedronBufferGeometry;
-	exports.OctahedronGeometry = OctahedronGeometry;
-	exports.OneFactor = OneFactor;
-	exports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;
-	exports.OneMinusDstColorFactor = OneMinusDstColorFactor;
-	exports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;
-	exports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;
-	exports.OrthographicCamera = OrthographicCamera;
-	exports.PCFShadowMap = PCFShadowMap;
-	exports.PCFSoftShadowMap = PCFSoftShadowMap;
-	exports.ParametricBufferGeometry = ParametricBufferGeometry;
-	exports.ParametricGeometry = ParametricGeometry;
-	exports.Particle = Particle;
-	exports.ParticleBasicMaterial = ParticleBasicMaterial;
-	exports.ParticleSystem = ParticleSystem;
-	exports.ParticleSystemMaterial = ParticleSystemMaterial;
-	exports.Path = Path;
-	exports.PerspectiveCamera = PerspectiveCamera;
-	exports.Plane = Plane;
-	exports.PlaneBufferGeometry = PlaneBufferGeometry;
-	exports.PlaneGeometry = PlaneGeometry;
-	exports.PlaneHelper = PlaneHelper;
-	exports.PointCloud = PointCloud;
-	exports.PointCloudMaterial = PointCloudMaterial;
-	exports.PointLight = PointLight;
-	exports.PointLightHelper = PointLightHelper;
-	exports.Points = Points;
-	exports.PointsMaterial = PointsMaterial;
-	exports.PolarGridHelper = PolarGridHelper;
-	exports.PolyhedronBufferGeometry = PolyhedronBufferGeometry;
-	exports.PolyhedronGeometry = PolyhedronGeometry;
-	exports.PositionalAudio = PositionalAudio;
-	exports.PositionalAudioHelper = PositionalAudioHelper;
-	exports.PropertyBinding = PropertyBinding;
-	exports.PropertyMixer = PropertyMixer;
-	exports.QuadraticBezierCurve = QuadraticBezierCurve;
-	exports.QuadraticBezierCurve3 = QuadraticBezierCurve3;
-	exports.Quaternion = Quaternion;
-	exports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;
-	exports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;
-	exports.REVISION = REVISION;
-	exports.RGBADepthPacking = RGBADepthPacking;
-	exports.RGBAFormat = RGBAFormat;
-	exports.RGBA_ASTC_10x10_Format = RGBA_ASTC_10x10_Format;
-	exports.RGBA_ASTC_10x5_Format = RGBA_ASTC_10x5_Format;
-	exports.RGBA_ASTC_10x6_Format = RGBA_ASTC_10x6_Format;
-	exports.RGBA_ASTC_10x8_Format = RGBA_ASTC_10x8_Format;
-	exports.RGBA_ASTC_12x10_Format = RGBA_ASTC_12x10_Format;
-	exports.RGBA_ASTC_12x12_Format = RGBA_ASTC_12x12_Format;
-	exports.RGBA_ASTC_4x4_Format = RGBA_ASTC_4x4_Format;
-	exports.RGBA_ASTC_5x4_Format = RGBA_ASTC_5x4_Format;
-	exports.RGBA_ASTC_5x5_Format = RGBA_ASTC_5x5_Format;
-	exports.RGBA_ASTC_6x5_Format = RGBA_ASTC_6x5_Format;
-	exports.RGBA_ASTC_6x6_Format = RGBA_ASTC_6x6_Format;
-	exports.RGBA_ASTC_8x5_Format = RGBA_ASTC_8x5_Format;
-	exports.RGBA_ASTC_8x6_Format = RGBA_ASTC_8x6_Format;
-	exports.RGBA_ASTC_8x8_Format = RGBA_ASTC_8x8_Format;
-	exports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;
-	exports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;
-	exports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;
-	exports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;
-	exports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;
-	exports.RGBDEncoding = RGBDEncoding;
-	exports.RGBEEncoding = RGBEEncoding;
-	exports.RGBEFormat = RGBEFormat;
-	exports.RGBFormat = RGBFormat;
-	exports.RGBM16Encoding = RGBM16Encoding;
-	exports.RGBM7Encoding = RGBM7Encoding;
-	exports.RGB_ETC1_Format = RGB_ETC1_Format;
-	exports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;
-	exports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;
-	exports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;
-	exports.RawShaderMaterial = RawShaderMaterial;
-	exports.Ray = Ray;
-	exports.Raycaster = Raycaster;
-	exports.RectAreaLight = RectAreaLight;
-	exports.RectAreaLightHelper = RectAreaLightHelper;
-	exports.RedFormat = RedFormat;
-	exports.ReinhardToneMapping = ReinhardToneMapping;
-	exports.RepeatWrapping = RepeatWrapping;
-	exports.ReverseSubtractEquation = ReverseSubtractEquation;
-	exports.RingBufferGeometry = RingBufferGeometry;
-	exports.RingGeometry = RingGeometry;
-	exports.Scene = Scene;
-	exports.SceneUtils = SceneUtils;
-	exports.ShaderChunk = ShaderChunk;
-	exports.ShaderLib = ShaderLib;
-	exports.ShaderMaterial = ShaderMaterial;
-	exports.ShadowMaterial = ShadowMaterial;
-	exports.Shape = Shape;
-	exports.ShapeBufferGeometry = ShapeBufferGeometry;
-	exports.ShapeGeometry = ShapeGeometry;
-	exports.ShapePath = ShapePath;
-	exports.ShapeUtils = ShapeUtils;
-	exports.ShortType = ShortType;
-	exports.Skeleton = Skeleton;
-	exports.SkeletonHelper = SkeletonHelper;
-	exports.SkinnedMesh = SkinnedMesh;
-	exports.SmoothShading = SmoothShading;
-	exports.Sphere = Sphere;
-	exports.SphereBufferGeometry = SphereBufferGeometry;
-	exports.SphereGeometry = SphereGeometry;
-	exports.Spherical = Spherical;
-	exports.SphericalHarmonics3 = SphericalHarmonics3;
-	exports.SphericalReflectionMapping = SphericalReflectionMapping;
-	exports.Spline = Spline;
-	exports.SplineCurve = SplineCurve;
-	exports.SplineCurve3 = SplineCurve3;
-	exports.SpotLight = SpotLight;
-	exports.SpotLightHelper = SpotLightHelper;
-	exports.SpotLightShadow = SpotLightShadow;
-	exports.Sprite = Sprite;
-	exports.SpriteMaterial = SpriteMaterial;
-	exports.SrcAlphaFactor = SrcAlphaFactor;
-	exports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;
-	exports.SrcColorFactor = SrcColorFactor;
-	exports.StereoCamera = StereoCamera;
-	exports.StringKeyframeTrack = StringKeyframeTrack;
-	exports.SubtractEquation = SubtractEquation;
-	exports.SubtractiveBlending = SubtractiveBlending;
-	exports.TangentSpaceNormalMap = TangentSpaceNormalMap;
-	exports.TetrahedronBufferGeometry = TetrahedronBufferGeometry;
-	exports.TetrahedronGeometry = TetrahedronGeometry;
-	exports.TextBufferGeometry = TextBufferGeometry;
-	exports.TextGeometry = TextGeometry;
-	exports.Texture = Texture;
-	exports.TextureLoader = TextureLoader;
-	exports.TorusBufferGeometry = TorusBufferGeometry;
-	exports.TorusGeometry = TorusGeometry;
-	exports.TorusKnotBufferGeometry = TorusKnotBufferGeometry;
-	exports.TorusKnotGeometry = TorusKnotGeometry;
-	exports.Triangle = Triangle;
-	exports.TriangleFanDrawMode = TriangleFanDrawMode;
-	exports.TriangleStripDrawMode = TriangleStripDrawMode;
-	exports.TrianglesDrawMode = TrianglesDrawMode;
-	exports.TubeBufferGeometry = TubeBufferGeometry;
-	exports.TubeGeometry = TubeGeometry;
-	exports.UVMapping = UVMapping;
-	exports.Uint16Attribute = Uint16Attribute;
-	exports.Uint16BufferAttribute = Uint16BufferAttribute;
-	exports.Uint32Attribute = Uint32Attribute;
-	exports.Uint32BufferAttribute = Uint32BufferAttribute;
-	exports.Uint8Attribute = Uint8Attribute;
-	exports.Uint8BufferAttribute = Uint8BufferAttribute;
-	exports.Uint8ClampedAttribute = Uint8ClampedAttribute;
-	exports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;
-	exports.Uncharted2ToneMapping = Uncharted2ToneMapping;
-	exports.Uniform = Uniform;
-	exports.UniformsLib = UniformsLib;
-	exports.UniformsUtils = UniformsUtils;
-	exports.UnsignedByteType = UnsignedByteType;
-	exports.UnsignedInt248Type = UnsignedInt248Type;
-	exports.UnsignedIntType = UnsignedIntType;
-	exports.UnsignedShort4444Type = UnsignedShort4444Type;
-	exports.UnsignedShort5551Type = UnsignedShort5551Type;
-	exports.UnsignedShort565Type = UnsignedShort565Type;
-	exports.UnsignedShortType = UnsignedShortType;
-	exports.Vector2 = Vector2;
-	exports.Vector3 = Vector3;
-	exports.Vector4 = Vector4;
-	exports.VectorKeyframeTrack = VectorKeyframeTrack;
-	exports.Vertex = Vertex;
-	exports.VertexColors = VertexColors;
-	exports.VertexNormalsHelper = VertexNormalsHelper;
-	exports.VideoTexture = VideoTexture;
-	exports.WebGLMultisampleRenderTarget = WebGLMultisampleRenderTarget;
-	exports.WebGLRenderTarget = WebGLRenderTarget;
-	exports.WebGLRenderTargetCube = WebGLRenderTargetCube;
-	exports.WebGLRenderer = WebGLRenderer;
-	exports.WebGLUtils = WebGLUtils;
-	exports.WireframeGeometry = WireframeGeometry;
-	exports.WireframeHelper = WireframeHelper;
-	exports.WrapAroundEnding = WrapAroundEnding;
-	exports.XHRLoader = XHRLoader;
-	exports.ZeroCurvatureEnding = ZeroCurvatureEnding;
-	exports.ZeroFactor = ZeroFactor;
-	exports.ZeroSlopeEnding = ZeroSlopeEnding;
-	exports.sRGBEncoding = sRGBEncoding;
-
-	Object.defineProperty(exports, '__esModule', { value: true });
-
-}));

From 715db5dfbd69cd8b1227cead4cd35c5d80d9df7c Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 17 May 2022 16:47:09 -0700
Subject: [PATCH 095/150] Support loading from non-root locations.

---
 Elements.Wasm/wwwroot/elements.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Elements.Wasm/wwwroot/elements.js b/Elements.Wasm/wwwroot/elements.js
index cc8a5a9f5..5eb31b713 100644
--- a/Elements.Wasm/wwwroot/elements.js
+++ b/Elements.Wasm/wwwroot/elements.js
@@ -22,6 +22,7 @@ class Elements {
 Blazor.start({
     loadBootResource: function (type, name, defaultUri, integrity) {
         // console.log(`Loading: '${type}', '${name}', '${defaultUri}', '${integrity}'`);
+        const root = window.location.protocol + '//' + window.location.host
         switch (type) {
             case 'manifest':
             case 'assembly':
@@ -29,7 +30,7 @@ Blazor.start({
             case 'dotnetjs':
             case 'dotnetwasm':
             case 'timezonedata':
-                return `elements/_framework/${name}`;
+                return `${root}/elements/_framework/${name}`;
         }
     }
 });

From eb6fae88dac73ebe51eca047d209336d97264e33 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 17 May 2022 16:47:27 -0700
Subject: [PATCH 096/150] All specifying build type during deploy.

---
 Elements.Wasm/deploy.sh | 36 +++++++++++++++++++++++++++++++-----
 1 file changed, 31 insertions(+), 5 deletions(-)

diff --git a/Elements.Wasm/deploy.sh b/Elements.Wasm/deploy.sh
index 3f3df8492..5b839453e 100755
--- a/Elements.Wasm/deploy.sh
+++ b/Elements.Wasm/deploy.sh
@@ -1,7 +1,33 @@
 #!/usr/bin/env bash
 
-echo 'Building the app.'
-dotnet build -c Release
+configuration='debug'
+
+while getopts c: flag
+do
+    case "${flag}" in
+        c) configuration=${OPTARG};;
+    esac
+done
+
+if [ $configuration == 'release' ]
+then
+    source='./bin/Release/net6.0/publish/wwwroot/_framework'
+elif [ $configuration == 'debug'  ]
+then
+    source='./bin/Release/net6.0/wwwroot/_framework'
+else
+    echo "The configuration, $configuration, is invalid. Only 'release' and 'debug' are supported."
+    exit
+fi
+
+# echo "Building the app in $configuration configuration."
+# if [ $configuration == 'release' ]
+# then
+#     dotnet publish -c release
+# elif [ $configuration == 'debug'  ]
+# then
+#     dotnet build -c release
+# fi
 
 echo 'Echo creating deploy directory.'
 rm -r deploy
@@ -9,11 +35,11 @@ mkdir deploy
 mkdir deploy/elements
 mkdir deploy/elements/_framework
 
-echo 'Copying assets.'
-rsync -av  --exclude=*.gz --exclude=*.br ./bin/Release/net6.0/wwwroot/_framework deploy/elements
+echo "Copying assets from $source"
+rsync -av  --exclude=*.gz --exclude=*.br $source deploy/elements
 cp ./wwwroot/elements.js deploy/elements/elements.js 
 cp ./wwwroot/index.html deploy/index.html
 
-echo 'Running the test application.'
+# echo 'Running the test application.'
 cd deploy
 python3 -m http.server
\ No newline at end of file

From d1d0c1fabf6df9a61be673a2965386edd9675613 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 21 May 2022 16:59:51 -0700
Subject: [PATCH 097/150] Fix test app to work locally.

---
 Elements.Wasm/wwwroot/index.html | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index 1b9c29333..d8dbec1a3 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -18,8 +18,8 @@
 </head>
 
 <body>
-    <script type="module" src="elements/elements.js"></script>
-    <script src="elements/_framework/blazor.webassembly.js" autostart="false"></script>
+    <script type="module" src="elements.js"></script>
+    <script src="_framework/blazor.webassembly.js"></script>
     <script type="module-shim">
         function loadModel(glb) {
             const blob = new Blob([new Uint8Array(glb)], { type: "application/octet-stream" });

From 21950f9baa272588a30bdc897c7033c0dde9647a Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 21 May 2022 17:00:03 -0700
Subject: [PATCH 098/150] Remove blazor start from elements.

---
 Elements.Wasm/wwwroot/elements.js | 19 -------------------
 1 file changed, 19 deletions(-)

diff --git a/Elements.Wasm/wwwroot/elements.js b/Elements.Wasm/wwwroot/elements.js
index 5eb31b713..a93f9d828 100644
--- a/Elements.Wasm/wwwroot/elements.js
+++ b/Elements.Wasm/wwwroot/elements.js
@@ -16,23 +16,4 @@ class Elements {
     }
 }
 
-// We don't autostart blazor so that we can capture
-// the load paths and redirect them to the correct location.
-// https://docs.microsoft.com/en-us/aspnet/core/blazor/fundamentals/startup?view=aspnetcore-6.0
-Blazor.start({
-    loadBootResource: function (type, name, defaultUri, integrity) {
-        // console.log(`Loading: '${type}', '${name}', '${defaultUri}', '${integrity}'`);
-        const root = window.location.protocol + '//' + window.location.host
-        switch (type) {
-            case 'manifest':
-            case 'assembly':
-            case 'globalization':
-            case 'dotnetjs':
-            case 'dotnetwasm':
-            case 'timezonedata':
-                return `${root}/elements/_framework/${name}`;
-        }
-    }
-});
-
 window.elements = new Elements();
\ No newline at end of file

From 0b794178ba5996174d717fafb268702bb1575802 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 21 May 2022 17:00:16 -0700
Subject: [PATCH 099/150] Deploy to s3.

---
 Elements.Wasm/deploy.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Elements.Wasm/deploy.sh b/Elements.Wasm/deploy.sh
index 5b839453e..3f623c1db 100755
--- a/Elements.Wasm/deploy.sh
+++ b/Elements.Wasm/deploy.sh
@@ -40,6 +40,10 @@ rsync -av  --exclude=*.gz --exclude=*.br $source deploy/elements
 cp ./wwwroot/elements.js deploy/elements/elements.js 
 cp ./wwwroot/index.html deploy/index.html
 
+echo "Uploading assets to s3"
+# aws s3 cp "$source" s3://elements-wasm/ --recursive --exclude "*.dll" --exclude "*.br" --exclude "*.dat" --exclude "*.wasm" --exclude "*.json" --exclude "*.js" --exclude "*.blat" --content-type "gzip"
+aws s3 cp "$source" s3://elements-wasm/ --recursive --exclude "*.br" --exclude "*.gz"
+
 # echo 'Running the test application.'
-cd deploy
-python3 -m http.server
\ No newline at end of file
+# cd deploy
+# python3 -m http.server
\ No newline at end of file

From aeb303e185bf54f58f9b5cb5f7da85ffff263a07 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 21 May 2022 17:11:50 -0700
Subject: [PATCH 100/150] Cleanup.

---
 .../Serialization/JSON/ElementConverter.cs    | 51 +++++++++++--------
 1 file changed, 31 insertions(+), 20 deletions(-)

diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index e0026177e..1e9a6fd87 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -89,32 +89,16 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                             int start = discriminator.LastIndexOf("<") + 1;
                             int end = discriminator.IndexOf(">", start);
                             string result = discriminator.Remove(start, end - start);
-                            if (!resolver.TypeCache.TryGetValue(result, out derivedType))
+                            if (!TryGetElementTypeWithFallbackToGeometricElement(resolver, result, root, out derivedType))
                             {
-                                if (root.TryGetProperty("Representation", out _))
-                                {
-                                    derivedType = typeof(GeometricElement);
-                                }
-                                else
-                                {
-                                    return default;
-                                }
+                                return default;
                             }
                         }
                         else
                         {
-                            if (!resolver.TypeCache.TryGetValue(discriminator, out derivedType))
+                            if (!TryGetElementTypeWithFallbackToGeometricElement(resolver, discriminator, root, out derivedType))
                             {
-                                // The type could not be found. See if it has the hallmarks
-                                // of a geometric element and deserialize it as such if possible.
-                                if (root.TryGetProperty("Representation", out _))
-                                {
-                                    derivedType = typeof(GeometricElement);
-                                }
-                                else
-                                {
-                                    return default;
-                                }
+                                return default;
                             }
                         }
 
@@ -180,6 +164,33 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
             }
         }
 
+        /// <summary>
+        /// The type could not be found. See if it has the hallmarks
+        /// of a geometric element and deserialize it as such if possible.
+        /// </summary>
+        /// <param name="resolver">The element reference resolver.</param>
+        /// <param name="discriminator">The discriminator.</param>
+        /// <param name="root">The json element within which we'll search for geometric element properties.</param>
+        /// <param name="derivedType">The found derived type.</param>
+        /// <returns>True if the element is a geometric element, otherwise false.</returns>
+        private bool TryGetElementTypeWithFallbackToGeometricElement(ElementReferenceResolver resolver, string discriminator, JsonElement root, out Type derivedType)
+        {
+            if (!resolver.TypeCache.TryGetValue(discriminator, out derivedType))
+            {
+                if (root.TryGetProperty("Representation", out _))
+                {
+                    derivedType = typeof(GeometricElement);
+                    return true;
+                }
+                else
+                {
+                    derivedType = null;
+                    return false;
+                }
+            }
+            return true;
+        }
+
         public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options)
         {
             var isElement = typeof(Element).IsAssignableFrom(value.GetType());

From 615d3b527131a3c975c18fef7cae87584ac47348 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 27 May 2022 20:29:26 -0700
Subject: [PATCH 101/150] Update the syncing logic

---
 Elements.Wasm/deploy.sh | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/Elements.Wasm/deploy.sh b/Elements.Wasm/deploy.sh
index 3f623c1db..b725f01e2 100755
--- a/Elements.Wasm/deploy.sh
+++ b/Elements.Wasm/deploy.sh
@@ -36,13 +36,12 @@ mkdir deploy/elements
 mkdir deploy/elements/_framework
 
 echo "Copying assets from $source"
-rsync -av  --exclude=*.gz --exclude=*.br $source deploy/elements
+rsync -av $source deploy/elements
 cp ./wwwroot/elements.js deploy/elements/elements.js 
 cp ./wwwroot/index.html deploy/index.html
 
 echo "Uploading assets to s3"
-# aws s3 cp "$source" s3://elements-wasm/ --recursive --exclude "*.dll" --exclude "*.br" --exclude "*.dat" --exclude "*.wasm" --exclude "*.json" --exclude "*.js" --exclude "*.blat" --content-type "gzip"
-aws s3 cp "$source" s3://elements-wasm/ --recursive --exclude "*.br" --exclude "*.gz"
+aws s3 sync "$source" s3://elements-wasm/ --exclude "*.gz" --exclude "*.br"
 
 # echo 'Running the test application.'
 # cd deploy

From 3661f9d10f0eb9bb325a7872f863b2247a947484 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 8 Jul 2022 16:43:54 -0700
Subject: [PATCH 102/150] Updates to used STJ.

---
 Elements/src/Material.cs          | 1 -
 Elements/src/StructuralFraming.cs | 2 --
 Elements/test/Grid2dTests.cs      | 2 +-
 Elements/test/ProfileTests.cs     | 4 ++--
 4 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/Elements/src/Material.cs b/Elements/src/Material.cs
index f0ef0b24b..615c34437 100644
--- a/Elements/src/Material.cs
+++ b/Elements/src/Material.cs
@@ -56,7 +56,6 @@ public class Material : Element
         /// <summary>
         /// Should objects with this material be drawn in front of all other objects?
         /// </summary>
-        [JsonProperty("Draw In Front", Required = Required.Default, NullValueHandling = NullValueHandling.Ignore)]
         public bool DrawInFront { get; set; } = false;
 
         /// <summary>
diff --git a/Elements/src/StructuralFraming.cs b/Elements/src/StructuralFraming.cs
index 53d730865..eafb69d60 100644
--- a/Elements/src/StructuralFraming.cs
+++ b/Elements/src/StructuralFraming.cs
@@ -82,8 +82,6 @@ public StructuralFraming(Curve curve,
             this.UpdateRepresentations();
         }
 
-        public StructuralFraming() { }
-
         private void SetProperties(Curve curve,
                                    Profile profile,
                                    double startSetback,
diff --git a/Elements/test/Grid2dTests.cs b/Elements/test/Grid2dTests.cs
index 6a03cae79..db4793dff 100644
--- a/Elements/test/Grid2dTests.cs
+++ b/Elements/test/Grid2dTests.cs
@@ -556,7 +556,7 @@ public void SeparatorsFromBadPolygon()
         public void NoTrimmedCells()
         {
             var json = File.ReadAllText("../../../models/Geometry/badGridTrimmed.json");
-            var grid = JsonConvert.DeserializeObject<Grid2d>(json);
+            var grid = JsonSerializer.Deserialize<Grid2d>(json);
             foreach (var c in grid.GetCells())
             {
                 Assert.False(c.IsTrimmed());
diff --git a/Elements/test/ProfileTests.cs b/Elements/test/ProfileTests.cs
index 2603260c5..43bc34def 100644
--- a/Elements/test/ProfileTests.cs
+++ b/Elements/test/ProfileTests.cs
@@ -532,8 +532,8 @@ public void SplitComplexProfileWithInnerVoids()
             Name = nameof(SplitComplexProfileWithInnerVoids);
             var profileJson = File.ReadAllText("../../../models/Geometry/complex-profile-w-voids.json");
             var segmentsJson = File.ReadAllText("../../../models/Geometry/splitsegments.json");
-            var profiles = JsonConvert.DeserializeObject<List<Profile>>(profileJson);
-            var segments = JsonConvert.DeserializeObject<List<Line>>(segmentsJson);
+            var profiles = JsonSerializer.Deserialize<List<Profile>>(profileJson);
+            var segments = JsonSerializer.Deserialize<List<Line>>(segmentsJson);
             var splits = Elements.Geometry.Profile.Split(profiles, segments.Select(l => l.ToPolyline(1)));
             // Value determined experimentally. If this test breaks, verify output visually —
             // it's not necessarily the end of the world if the number changes slightly, but we want to

From 246380c2d14ab564954c61436f97e07e7f35bb0e Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 8 Jul 2022 18:32:41 -0700
Subject: [PATCH 103/150] Fix newly added tests.

---
 Elements/src/Annotations/AlignedDimension.cs      | 2 +-
 Elements/src/Element.cs                           | 1 -
 Elements/src/Serialization/JSON/ModelConverter.cs | 2 +-
 Elements/src/Spatial/Grid2d.cs                    | 2 +-
 Elements/test/Grid2dTests.cs                      | 2 +-
 5 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/Elements/src/Annotations/AlignedDimension.cs b/Elements/src/Annotations/AlignedDimension.cs
index e86dbe87d..a52e1055e 100644
--- a/Elements/src/Annotations/AlignedDimension.cs
+++ b/Elements/src/Annotations/AlignedDimension.cs
@@ -1,6 +1,6 @@
 using System;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
-using Newtonsoft.Json;
 
 namespace Elements.Annotations
 {
diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index c7de315dd..363ebd201 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -115,6 +115,5 @@ public static T Deserialize<T>(string json)
                 return JsonSerializer.Deserialize<T>(doc, options);
             }
         }
-
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/ModelConverter.cs b/Elements/src/Serialization/JSON/ModelConverter.cs
index bed2b3858..b5a534a8c 100644
--- a/Elements/src/Serialization/JSON/ModelConverter.cs
+++ b/Elements/src/Serialization/JSON/ModelConverter.cs
@@ -21,7 +21,7 @@ public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
                 {
                     // TODO: This try/catch is only here to protect against
                     // situations like null property values when the serializer
-                    // expects a value. Unlike json.net, system.text.json doesn't
+                    // expects a value, or validation errors. Unlike json.net, system.text.json doesn't
                     // have null value handling on read. 
                     try
                     {
diff --git a/Elements/src/Spatial/Grid2d.cs b/Elements/src/Spatial/Grid2d.cs
index a1c4ea9de..77f1eb26a 100644
--- a/Elements/src/Spatial/Grid2d.cs
+++ b/Elements/src/Spatial/Grid2d.cs
@@ -172,7 +172,7 @@ public Grid2d(Transform fromGrid,
             this.fromGrid = fromGrid;
             this.toGrid = toGrid;
             this.UDomainInternal = uDomainInternal;
-            this.VDomainInternal = uDomainInternal;
+            this.VDomainInternal = vDomainInternal;
             this.boundariesInGridSpace = boundariesInGridSpace;
             this.U = u;
             this.V = v;
diff --git a/Elements/test/Grid2dTests.cs b/Elements/test/Grid2dTests.cs
index db4793dff..b6de3066f 100644
--- a/Elements/test/Grid2dTests.cs
+++ b/Elements/test/Grid2dTests.cs
@@ -556,7 +556,7 @@ public void SeparatorsFromBadPolygon()
         public void NoTrimmedCells()
         {
             var json = File.ReadAllText("../../../models/Geometry/badGridTrimmed.json");
-            var grid = JsonSerializer.Deserialize<Grid2d>(json);
+            var grid = Element.Deserialize<Grid2d>(json);
             foreach (var c in grid.GetCells())
             {
                 Assert.False(c.IsTrimmed());

From 0d922238afbb7344e10fc2f3d3404256fb7dc3b6 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 8 Jul 2022 18:37:00 -0700
Subject: [PATCH 104/150] Fix for small API change.

---
 Elements.Wasm/ElementsAPI.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements.Wasm/ElementsAPI.cs b/Elements.Wasm/ElementsAPI.cs
index f603bcb0f..c77ddf18e 100644
--- a/Elements.Wasm/ElementsAPI.cs
+++ b/Elements.Wasm/ElementsAPI.cs
@@ -61,7 +61,7 @@ public static Task<TestResult> Test(int value)
             var line = new Line(start, end);
             var c = new Color(r.NextDouble(), r.NextDouble(), r.NextDouble(), 1.0);
             var m = new Material(Guid.NewGuid().ToString(), c);
-            var beam = new Beam(line, profile, m);
+            var beam = new Beam(line, profile, null, m);
             model.AddElement(beam);
         }
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating test beams.");

From e09e1d9079093e289aac4939ec82a16a867ca4cf Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Fri, 8 Jul 2022 18:37:07 -0700
Subject: [PATCH 105/150] Leave a note on one test.

---
 Elements/test/ProfileTests.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Elements/test/ProfileTests.cs b/Elements/test/ProfileTests.cs
index 43bc34def..b81a88209 100644
--- a/Elements/test/ProfileTests.cs
+++ b/Elements/test/ProfileTests.cs
@@ -529,6 +529,8 @@ public void DifferenceToleratesBadGeometry()
         [Fact]
         public void SplitComplexProfileWithInnerVoids()
         {
+            throw new Exception("This test fails during deserialization validation, and it can't be caught because the new deserializer doesn't handle exceptions. We need to figure this out before we release.");
+
             Name = nameof(SplitComplexProfileWithInnerVoids);
             var profileJson = File.ReadAllText("../../../models/Geometry/complex-profile-w-voids.json");
             var segmentsJson = File.ReadAllText("../../../models/Geometry/splitsegments.json");

From d22e79dfce114647b19cc8e202fe3ea7f22b4465 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 9 Jul 2022 13:54:56 -0700
Subject: [PATCH 106/150] Make the element converter public.

---
 Elements/src/Serialization/JSON/ElementConverter.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 1e9a6fd87..95f65afff 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -13,7 +13,7 @@ namespace Elements.Serialization.JSON
     /// 
     /// </summary>
     /// <typeparam name="T"></typeparam>
-    internal class ElementConverter<T> : JsonConverter<T>
+    public class ElementConverter<T> : JsonConverter<T>
     {
         public bool ElementwiseSerialization { get; internal set; } = false;
 

From e3d44558c539bb91628ad32b83650993d9e244de Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 10 Jul 2022 00:21:13 -0700
Subject: [PATCH 107/150] Fix the release deploy script.

---
 Elements.Wasm/deploy.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Elements.Wasm/deploy.sh b/Elements.Wasm/deploy.sh
index b725f01e2..1a0e67d57 100755
--- a/Elements.Wasm/deploy.sh
+++ b/Elements.Wasm/deploy.sh
@@ -11,10 +11,10 @@ done
 
 if [ $configuration == 'release' ]
 then
-    source='./bin/Release/net6.0/publish/wwwroot/_framework'
+    source='./bin/Release/net6.0/wwwroot/_framework'
 elif [ $configuration == 'debug'  ]
 then
-    source='./bin/Release/net6.0/wwwroot/_framework'
+    source='./bin/Debug/net6.0/wwwroot/_framework'
 else
     echo "The configuration, $configuration, is invalid. Only 'release' and 'debug' are supported."
     exit

From 1b210199d805ae9c13996b232981aad9a0dd5803 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 10 Jul 2022 01:20:00 -0700
Subject: [PATCH 108/150] Remove newtonsoft in two more places.

---
 Elements/src/Annotations/ContinuousDimension.cs | 2 +-
 Elements/src/Annotations/LinearDimension.cs     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Elements/src/Annotations/ContinuousDimension.cs b/Elements/src/Annotations/ContinuousDimension.cs
index 8d747903d..097e27644 100644
--- a/Elements/src/Annotations/ContinuousDimension.cs
+++ b/Elements/src/Annotations/ContinuousDimension.cs
@@ -1,6 +1,6 @@
 using System;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
-using Newtonsoft.Json;
 
 namespace Elements.Annotations
 {
diff --git a/Elements/src/Annotations/LinearDimension.cs b/Elements/src/Annotations/LinearDimension.cs
index eda01e882..b907a1c73 100644
--- a/Elements/src/Annotations/LinearDimension.cs
+++ b/Elements/src/Annotations/LinearDimension.cs
@@ -1,6 +1,6 @@
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
-using Newtonsoft.Json;
 
 namespace Elements.Annotations
 {

From 258192b572fe21c281f7fa74f5e7f3c58caa164f Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 10 Jul 2022 01:20:19 -0700
Subject: [PATCH 109/150] Upgrade our package references.

---
 Elements.Playground/Elements.Playground.csproj | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Elements.Playground/Elements.Playground.csproj b/Elements.Playground/Elements.Playground.csproj
index 33d8d40bb..8f1ba3652 100644
--- a/Elements.Playground/Elements.Playground.csproj
+++ b/Elements.Playground/Elements.Playground.csproj
@@ -10,10 +10,10 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="5.0.0" />
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="5.0.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="6.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="6.0.0" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="3.11.0" />
-    <PackageReference Include="System.Net.Http.Json" Version="5.0.0" />
+    <PackageReference Include="System.Net.Http.Json" Version="6.0.0" />
   </ItemGroup>
 
   <ItemGroup>

From adcdbe43e707094658caa4e2bd6a29e5aefdf3f1 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 10 Jul 2022 01:20:30 -0700
Subject: [PATCH 110/150] Fix a typo.

---
 Elements.Playground/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements.Playground/README.md b/Elements.Playground/README.md
index 2c84deef2..0552be000 100644
--- a/Elements.Playground/README.md
+++ b/Elements.Playground/README.md
@@ -9,7 +9,7 @@ This is a minimal example using .NET 5, Blazor webassembly, and Elements.
 Visit http://localhost:5000.
 
 ### Publishing
-`dotnet public -c release`
+`dotnet publish -c release`
 
 ### Notes about hosting on Github Pages
 - In the site's repo on github

From f61e4138f883f80379bc7e8e05507d18d5dccaa0 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 10 Jul 2022 01:21:02 -0700
Subject: [PATCH 111/150] Increase the size of the test.

---
 Elements.Wasm/wwwroot/index.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index d8dbec1a3..08c9076a4 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -96,7 +96,7 @@
 
         animate();
     </script>
-    <input type="range" min="1" max="100" value="1" class="slider" id="myRange" oninput="model.reset()"
+    <input type="range" min="1" max="500" value="1" class="slider" id="myRange" oninput="model.reset()"
         onchange="console.debug(this.value);model.runTest(parseFloat(this.value))">
     <div id="result" style="white-space: pre-line; position: absolute; left: 20px; bottom: 20px"></div>
 </body>

From a00524a1f4a5113e8b14ec7b430601b967047dbb Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 11 Jul 2022 18:30:03 -0700
Subject: [PATCH 112/150] Add a benchmark to simulate the API serialization.

---
 Elements.Benchmarks/API.cs | 41 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 Elements.Benchmarks/API.cs

diff --git a/Elements.Benchmarks/API.cs b/Elements.Benchmarks/API.cs
new file mode 100644
index 000000000..515e80371
--- /dev/null
+++ b/Elements.Benchmarks/API.cs
@@ -0,0 +1,41 @@
+using System;
+using BenchmarkDotNet.Attributes;
+using Elements.Geometry;
+using Elements.Serialization.glTF;
+
+namespace Elements.Benchmarks
+{
+    [MemoryDiagnoser]
+    public class API
+    {
+        [Params(5, 50, 200, 500)]
+        public int Value { get; set; }
+
+        [Benchmark(Description = "API Test Serialization")]
+        public void SerializeElementsToGlTF()
+        {
+            var model = new Model();
+            var r = new Random();
+            var size = 10;
+            var profile = new Profile(Polygon.L(0.1, 0.1, 0.05));
+            model.AddElement(profile);
+
+            for (var i = 0; i < this.Value; i++)
+            {
+                var start = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
+                var end = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
+                var line = new Line(start, end);
+                // var c = new Color(r.NextDouble(), r.NextDouble(), r.NextDouble(), 1.0);
+                // var m = new Material(Guid.NewGuid().ToString(), c);
+                var beam = new Beam(line, profile, null, BuiltInMaterials.Steel);
+                model.AddElement(beam);
+            }
+
+            var json = model.ToJson();
+
+            var newModel = Model.FromJson(json);
+
+            var result = model.ToGlTF();
+        }
+    }
+}
\ No newline at end of file

From 5058be1d6fedeb505c97ec5415ee9809ffd4991d Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 12 Jul 2022 14:11:06 -0700
Subject: [PATCH 113/150] Add the geometric element converter.

---
 Elements.Benchmarks/API.cs                    |  16 +-
 Elements.Wasm/ElementsAPI.cs                  |  24 ++-
 Elements/src/Model.cs                         |  35 +++-
 .../Serialization/JSON/ElementConverter.cs    |   2 +-
 .../JSON/ModelToGeometricElementsConverter.cs | 171 ++++++++++++++++++
 Elements/test/ModelTests.cs                   |  26 +++
 6 files changed, 255 insertions(+), 19 deletions(-)
 create mode 100644 Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs

diff --git a/Elements.Benchmarks/API.cs b/Elements.Benchmarks/API.cs
index 515e80371..f7ce6368a 100644
--- a/Elements.Benchmarks/API.cs
+++ b/Elements.Benchmarks/API.cs
@@ -8,11 +8,13 @@ namespace Elements.Benchmarks
     [MemoryDiagnoser]
     public class API
     {
+        private string _model;
+
         [Params(5, 50, 200, 500)]
         public int Value { get; set; }
 
-        [Benchmark(Description = "API Test Serialization")]
-        public void SerializeElementsToGlTF()
+        [GlobalSetup]
+        public void Setup()
         {
             var model = new Model();
             var r = new Random();
@@ -31,11 +33,13 @@ public void SerializeElementsToGlTF()
                 model.AddElement(beam);
             }
 
-            var json = model.ToJson();
-
-            var newModel = Model.FromJson(json);
+            _model = model.ToJson();
+        }
 
-            var result = model.ToGlTF();
+        [Benchmark(Description = "API Test Serialization")]
+        public void SerializeElementsToGlTF()
+        {
+            Model.GeometricElementModelFromJson(_model);
         }
     }
 }
\ No newline at end of file
diff --git a/Elements.Wasm/ElementsAPI.cs b/Elements.Wasm/ElementsAPI.cs
index c77ddf18e..6ce782f04 100644
--- a/Elements.Wasm/ElementsAPI.cs
+++ b/Elements.Wasm/ElementsAPI.cs
@@ -22,7 +22,7 @@ public static Task<string> ModelToGlbBase64(string json)
     {
         Validator.DisableValidationOnConstruction = true;
 
-        var model = Model.FromJson(json);
+        var model = Model.GeometricElementModelFromJson(json);
         return Task.FromResult(model.ToBase64String());
     }
 
@@ -33,7 +33,7 @@ public static Task<byte[]> ModelToGlbBytes(string json)
 
         var sw = new Stopwatch();
         sw.Start();
-        var model = Model.FromJson(json);
+        var model = Model.GeometricElementModelFromJson(json);
         Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the model from json.");
         sw.Restart();
         var result = Task.FromResult(model.ToGlTF());
@@ -59,22 +59,26 @@ public static Task<TestResult> Test(int value)
             var start = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
             var end = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
             var line = new Line(start, end);
-            var c = new Color(r.NextDouble(), r.NextDouble(), r.NextDouble(), 1.0);
-            var m = new Material(Guid.NewGuid().ToString(), c);
-            var beam = new Beam(line, profile, null, m);
+            // var c = new Color(r.NextDouble(), r.NextDouble(), r.NextDouble(), 1.0);
+            // var m = new Material(Guid.NewGuid().ToString(), c);
+            var beam = new Beam(line, profile, null, BuiltInMaterials.Steel);
             model.AddElement(beam);
         }
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating test beams.");
         sw.Restart();
 
-        // var json = model.ToJson();
-        // sb.AppendLine($"{sw.ElapsedMilliseconds}ms for serializing model.");
-        // sw.Restart();
+        var json = model.ToJson();
+        sb.AppendLine($"{sw.ElapsedMilliseconds}ms for serializing model.");
+        sw.Restart();
 
-        // var newModel = Model.FromJson(json);
-        // sb.AppendLine($"{sw.ElapsedMilliseconds}ms for deserializing model.");
+        // var baseModel = Model.FromJson(json);
+        // sb.AppendLine($"{sw.ElapsedMilliseconds}ms for deserializing model using base deserializer.");
         // sw.Restart();
 
+        var newModel = Model.GeometricElementModelFromJson(json);
+        sb.AppendLine($"{sw.ElapsedMilliseconds}ms for deserializing model using geometric elements");
+        sw.Restart();
+
         var result = model.ToGlTF();
         sb.AppendLine($"{sw.ElapsedMilliseconds}ms for creating the glb.");
         return Task.FromResult<TestResult>(new TestResult()
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 6e60d9e76..0d27cde88 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -262,14 +262,45 @@ internal Model CreateExportModel(bool gatherSubElements)
             return exportModel;
         }
 
+        public static Model GeometricElementModelFromJson(string json)
+        {
+            Model model = null;
+            using (var document = JsonDocument.Parse(json))
+            {
+                JsonElement root = document.RootElement;
+                JsonElement elementsElement = root.GetProperty("Elements");
+
+                var options = new JsonSerializerOptions();
+
+                // Our custom reference handler will cache elements by id as
+                // they are deserialized, supporting reading elements by id
+                // from JSON.
+                var refHandler = new ElementReferenceHandler(null, elementsElement);
+                options.ReferenceHandler = refHandler;
+
+                // Use the model converter here so that we have a chance to 
+                // intercept the creation of elements when things go wrong.
+                // Using the model converter adds 100ms because it has to
+                // call deserialize for each element and trap if the element
+                // is null and report an error.
+                options.Converters.Add(new ModelToGeometricElementsConverter());
+
+                model = JsonSerializer.Deserialize<Model>(json, options);
+
+                // Resetting the reference handler, empties the internal
+                // elements cache.
+                refHandler.Reset(null, elementsElement);
+            }
+            
+            return model;
+        }
+
         /// <summary>
         /// Deserialize a model from JSON.
         /// </summary>
         /// <param name="json">The JSON representing the model.</param>
         public static Model FromJson(string json)
         {
-            var sw = new Stopwatch();
-            sw.Start();
             var typeCache = AppDomainTypeCache.BuildAppDomainTypeCache(out _);
 
             Model model = null;
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 95f65afff..3268da589 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -351,7 +351,7 @@ private bool IsAcceptedCollectionType(Type propertyType, out CollectionType coll
             return false;
         }
 
-        private void HandleReferenceId(JsonElement elementToDeserialize,
+        internal static void HandleReferenceId(JsonElement elementToDeserialize,
                                               Guid referencedId,
                                               ReferenceResolver resolver,
                                               JsonElement documentElements,
diff --git a/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs b/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs
new file mode 100644
index 000000000..518d634d6
--- /dev/null
+++ b/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs
@@ -0,0 +1,171 @@
+using System;
+using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Elements.Geometry;
+using Elements.Geometry.Solids;
+
+namespace Elements.Serialization.JSON
+{
+    /// <summary>
+    /// Convert a model to a collection of geometric elements.
+    /// </summary>
+    public class ModelToGeometricElementsConverter : JsonConverter<Model>
+    {
+        public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            var resolver = options.ReferenceHandler.CreateResolver() as ElementReferenceResolver;
+
+            // Read materials, profiles, geometric elements
+            var elements = new Dictionary<Guid, Element>();
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+                var elementsElement = root.GetProperty("Elements");
+                var transform = JsonSerializer.Deserialize<Transform>(root.GetProperty("Transform"));
+
+                foreach (var element in elementsElement.EnumerateObject())
+                {
+                    var discriminator = element.Value.GetProperty("discriminator").GetString();
+
+                    // TODO: This try/catch is only here to protect against
+                    // situations like null property values when the serializer
+                    // expects a value, or validation errors. Unlike json.net, system.text.json doesn't
+                    // have null value handling on read. 
+                    // try
+                    // {
+                    var id = Guid.Parse(element.Name);
+                    Element e = null;
+                    element.Value.TryGetProperty("Name", out var nameProp);
+
+                    string name;
+                    {
+                        name = nameProp.GetString();
+                    }
+
+                    switch (discriminator)
+                    {
+                        // TODO: Big assumption here - that things are in the right order.
+                        case "Elements.Material":
+                            e = JsonSerializer.Deserialize<Material>(element.Value);
+                            break;
+                        case "Elements.Geometry.Profile":
+                            e = JsonSerializer.Deserialize<Profile>(element.Value);
+                            break;
+                        case "Elements.ElementInstance":
+                            var baseDefinition = (GeometricElement)resolver.ResolveReference(element.Value.GetProperty("BaseDefinition").GetString());
+                            var elementTransform = JsonSerializer.Deserialize<Transform>(element.Value.GetProperty("Transform"));
+                            e = new ElementInstance(baseDefinition, elementTransform, name, id);
+                            break;
+                        default:
+
+                            if (element.Value.TryGetProperty("Perimeter", out _) && element.Value.TryGetProperty("Voids", out _))
+                            {
+                                // TODO: We're handling profile-like things in this way.
+                                e = JsonSerializer.Deserialize<Profile>(element.Value);
+                                break;
+                            }
+
+                            // Qualify element as a geometric element by seeing 
+                            // whether it has a representation.
+                            if (element.Value.TryGetProperty("Representation", out var repProperty))
+                            {
+                                if (discriminator == "Elements.ModelCurve")
+                                {
+                                    // TODO: Handle model curves.
+                                    continue;
+                                }
+                                else if (discriminator == "Elements.GridLine")
+                                {
+                                    // TODO: Handle grid lines.
+                                    continue;
+                                }
+
+                                var solidOps = new List<SolidOperation>();
+                                foreach (var solidOp in repProperty.GetProperty("SolidOperations").EnumerateArray())
+                                {
+                                    SolidOperation op = null;
+                                    var isVoid = false;
+                                    if (solidOp.TryGetProperty("IsVoid", out var isVoidElement))
+                                    {
+                                        isVoid = isVoidElement.GetBoolean();
+                                    }
+
+                                    switch (solidOp.GetProperty("discriminator").GetString())
+                                    {
+                                        case "Elements.Geometry.Solids.Extrude":
+                                            var profile = (Profile)resolver.ResolveReference(solidOp.GetProperty("Profile").GetString());
+                                            var height = solidOp.GetProperty("Height").GetDouble();
+                                            var direction = JsonSerializer.Deserialize<Vector3>(solidOp.GetProperty("Direction"));
+                                            op = new Extrude(profile, height, direction, isVoid);
+                                            break;
+                                        case "Elements.Geometry.Solids.Sweep":
+                                            profile = (Profile)resolver.ResolveReference(solidOp.GetProperty("Profile").GetString());
+                                            var curve = DeserializeCurve(solidOp.GetProperty("Curve"));
+                                            var startSetback = solidOp.GetProperty("StartSetback").GetDouble();
+                                            var endSetback = solidOp.GetProperty("EndSetback").GetDouble();
+                                            var profileRotation = 0.0;
+                                            if (solidOp.TryGetProperty("ProfileRotation", out var rotation))
+                                            {
+                                                profileRotation = rotation.GetDouble();
+                                            }
+                                            op = new Sweep(profile, curve, startSetback, endSetback, profileRotation, isVoid);
+                                            break;
+                                        case "Elements.Geometry.Solids.Lamina":
+                                            var perimeter = JsonSerializer.Deserialize<Polygon>(solidOp.GetProperty("Perimeter"));
+                                            op = new Lamina(perimeter, isVoid);
+                                            break;
+                                    }
+                                    solidOps.Add(op);
+                                }
+                                var rep = new Representation(solidOps);
+                                elementTransform = JsonSerializer.Deserialize<Transform>(element.Value.GetProperty("Transform"));
+                                var material = (Material)resolver.ResolveReference(element.Value.GetProperty("Material").GetString());
+                                var elementId = element.Value.GetProperty("Id").GetGuid();
+                                var isElementDefinition = element.Value.GetProperty("IsElementDefinition").GetBoolean();
+                                e = new GeometricElement(elementTransform, material, rep, isElementDefinition, elementId, name);
+                            }
+                            break;
+                    }
+                    if (e != null)
+                    {
+                        elements.Add(id, e);
+                        resolver.AddReference(id.ToString(), e);
+                    }
+                    // }
+                    // catch (Exception ex)
+                    // {
+                    //     Console.WriteLine(ex.Message);
+                    //     continue;
+                    // }
+                }
+
+                var model = new Model(transform, elements);
+                return model;
+            }
+        }
+
+        private Curve DeserializeCurve(JsonElement jsonCurve)
+        {
+            var discriminator = jsonCurve.GetProperty("discriminator").GetString();
+            switch (discriminator)
+            {
+                case "Elements.Geometry.Line":
+                    return JsonSerializer.Deserialize<Line>(jsonCurve);
+                case "Elements.Geometry.Polygon":
+                    return JsonSerializer.Deserialize<Polygon>(jsonCurve);
+                case "Elements.Geometry.Polyline":
+                    return JsonSerializer.Deserialize<Polyline>(jsonCurve);
+                case "Elements.Geometry.Arc":
+                    return JsonSerializer.Deserialize<Arc>(jsonCurve);
+                default:
+                    throw new JsonException($"The curve type, {discriminator}, could not be deserialized.");
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, Model value, JsonSerializerOptions options)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index c55b2e4d7..911b9ef72 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -270,6 +270,32 @@ public void DeserializesToGeometricElementsWhenTypeIsUnknownAndRepresentationExi
             newModel.ToGlTF(modelPath, true);
         }
 
+        [Fact]
+        public void DeserializesToGeometricElements()
+        {
+            // var model = new Model();
+            // var r = new Random();
+            // var size = 10;
+            // var profile = new Profile(Polygon.L(0.1, 0.1, 0.05));
+            // model.AddElement(profile);
+
+            // for (var i = 0; i < 10; i++)
+            // {
+            //     var start = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
+            //     var end = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
+            //     var line = new Line(start, end);
+            //     // var c = new Color(r.NextDouble(), r.NextDouble(), r.NextDouble(), 1.0);
+            //     // var m = new Material(Guid.NewGuid().ToString(), c);
+            //     var beam = new Beam(line, profile, null, BuiltInMaterials.Steel);
+            //     model.AddElement(beam);
+            // }
+
+            var json = File.ReadAllText("../../../models/Geometry/tower.json");
+
+            var newModel = Model.GeometricElementModelFromJson(json);
+            newModel.ToGlTF("models/geometric_elements_2.glb");
+        }
+
         [Fact]
         public void SubElementIsAddedToModel()
         {

From 79e8f2b7aadfa6096da406843dd2da7a51df3514 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 12 Jul 2022 15:10:44 -0700
Subject: [PATCH 114/150] Cleanup

---
 Elements/src/Model.cs                         | 39 ++++++++-----------
 .../JSON/ModelToGeometricElementsConverter.cs | 20 ++--------
 Elements/test/ModelTests.cs                   | 18 ---------
 3 files changed, 19 insertions(+), 58 deletions(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 0d27cde88..90b2dd985 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -264,34 +264,27 @@ internal Model CreateExportModel(bool gatherSubElements)
 
         public static Model GeometricElementModelFromJson(string json)
         {
-            Model model = null;
-            using (var document = JsonDocument.Parse(json))
-            {
-                JsonElement root = document.RootElement;
-                JsonElement elementsElement = root.GetProperty("Elements");
+            var options = new JsonSerializerOptions();
 
-                var options = new JsonSerializerOptions();
+            // Our custom reference handler will cache elements by id as
+            // they are deserialized, supporting reading elements by id
+            // from JSON.
+            var refHandler = new ElementReferenceHandler(null, default);
+            options.ReferenceHandler = refHandler;
 
-                // Our custom reference handler will cache elements by id as
-                // they are deserialized, supporting reading elements by id
-                // from JSON.
-                var refHandler = new ElementReferenceHandler(null, elementsElement);
-                options.ReferenceHandler = refHandler;
+            // Use the model converter here so that we have a chance to 
+            // intercept the creation of elements when things go wrong.
+            // Using the model converter adds 100ms because it has to
+            // call deserialize for each element and trap if the element
+            // is null and report an error.
+            options.Converters.Add(new ModelToGeometricElementsConverter());
 
-                // Use the model converter here so that we have a chance to 
-                // intercept the creation of elements when things go wrong.
-                // Using the model converter adds 100ms because it has to
-                // call deserialize for each element and trap if the element
-                // is null and report an error.
-                options.Converters.Add(new ModelToGeometricElementsConverter());
+            var model = JsonSerializer.Deserialize<Model>(json, options);
 
-                model = JsonSerializer.Deserialize<Model>(json, options);
+            // Resetting the reference handler, empties the internal
+            // elements cache.
+            refHandler.Reset(null, default);
 
-                // Resetting the reference handler, empties the internal
-                // elements cache.
-                refHandler.Reset(null, elementsElement);
-            }
-            
             return model;
         }
 
diff --git a/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs b/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs
index 518d634d6..aa408f60f 100644
--- a/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs
+++ b/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs
@@ -26,18 +26,10 @@ public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
 
                 foreach (var element in elementsElement.EnumerateObject())
                 {
-                    var discriminator = element.Value.GetProperty("discriminator").GetString();
-
-                    // TODO: This try/catch is only here to protect against
-                    // situations like null property values when the serializer
-                    // expects a value, or validation errors. Unlike json.net, system.text.json doesn't
-                    // have null value handling on read. 
-                    // try
-                    // {
-                    var id = Guid.Parse(element.Name);
                     Element e = null;
+                    var discriminator = element.Value.GetProperty("discriminator").GetString();
+                    var id = element.Value.GetProperty("Id").GetGuid();
                     element.Value.TryGetProperty("Name", out var nameProp);
-
                     string name;
                     {
                         name = nameProp.GetString();
@@ -132,12 +124,6 @@ public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
                         elements.Add(id, e);
                         resolver.AddReference(id.ToString(), e);
                     }
-                    // }
-                    // catch (Exception ex)
-                    // {
-                    //     Console.WriteLine(ex.Message);
-                    //     continue;
-                    // }
                 }
 
                 var model = new Model(transform, elements);
@@ -145,7 +131,7 @@ public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
             }
         }
 
-        private Curve DeserializeCurve(JsonElement jsonCurve)
+        internal static Curve DeserializeCurve(JsonElement jsonCurve)
         {
             var discriminator = jsonCurve.GetProperty("discriminator").GetString();
             switch (discriminator)
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index 911b9ef72..aa960566a 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -273,25 +273,7 @@ public void DeserializesToGeometricElementsWhenTypeIsUnknownAndRepresentationExi
         [Fact]
         public void DeserializesToGeometricElements()
         {
-            // var model = new Model();
-            // var r = new Random();
-            // var size = 10;
-            // var profile = new Profile(Polygon.L(0.1, 0.1, 0.05));
-            // model.AddElement(profile);
-
-            // for (var i = 0; i < 10; i++)
-            // {
-            //     var start = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
-            //     var end = new Vector3(r.NextDouble() * size, r.NextDouble() * size, r.NextDouble() * size);
-            //     var line = new Line(start, end);
-            //     // var c = new Color(r.NextDouble(), r.NextDouble(), r.NextDouble(), 1.0);
-            //     // var m = new Material(Guid.NewGuid().ToString(), c);
-            //     var beam = new Beam(line, profile, null, BuiltInMaterials.Steel);
-            //     model.AddElement(beam);
-            // }
-
             var json = File.ReadAllText("../../../models/Geometry/tower.json");
-
             var newModel = Model.GeometricElementModelFromJson(json);
             newModel.ToGlTF("models/geometric_elements_2.glb");
         }

From fb88cecf41aaccd1b3faf55be93d2990a05a4c32 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 12 Jul 2022 17:31:50 -0700
Subject: [PATCH 115/150] Don't need the converter.

---
 Elements.Wasm/wwwroot/index.html              |     11 +
 Elements.Wasm/wwwroot/model.json              | 144757 +++++++++++++++
 Elements/src/Model.cs                         |    169 +-
 .../JSON/ModelToGeometricElementsConverter.cs |    157 -
 4 files changed, 144920 insertions(+), 174 deletions(-)
 create mode 100644 Elements.Wasm/wwwroot/model.json
 delete mode 100644 Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs

diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index 08c9076a4..a761b3851 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -63,10 +63,20 @@
             });
         };
 
+        function loadTestModel() {
+            var request = new XMLHttpRequest();
+            request.open("GET", "model.json", false);
+            request.send(null)
+            elements.modelToGlbBytes(request.responseText).then((result) => {
+                model.loadModel(result)
+            })
+        }
+
         window.model = {
             reset: () => { reset(); },
             runTest: (value) => { runTest(value); },
             loadModel: (glb) => { loadModel(glb) },
+            loadTestModel: () => { loadTestModel() }
         };
 
         import { Scene, PerspectiveCamera, WebGLRenderer, DirectionalLight, sRGBEncoding} from 'three';
@@ -98,6 +108,7 @@
     </script>
     <input type="range" min="1" max="500" value="1" class="slider" id="myRange" oninput="model.reset()"
         onchange="console.debug(this.value);model.runTest(parseFloat(this.value))">
+    <button type="button" id="loadButton" onclick="model.loadTestModel()">Load Test Model</button>
     <div id="result" style="white-space: pre-line; position: absolute; left: 20px; bottom: 20px"></div>
 </body>
 
diff --git a/Elements.Wasm/wwwroot/model.json b/Elements.Wasm/wwwroot/model.json
new file mode 100644
index 000000000..a8ad0ba51
--- /dev/null
+++ b/Elements.Wasm/wwwroot/model.json
@@ -0,0 +1,144757 @@
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+      "Id": "28c13cc4-c6a9-4c09-a188-6393d21c8567",
+      "Name": "Structure elevation 4.5"
+    },
+    "00ee9017-7840-4190-89fc-13099697449d": {
+      "discriminator": "Elements.ViewScope",
+      "Bounding Box": {
+        "discriminator": "Elements.Geometry.BBox3",
+        "Min": {
+          "X": 0.5,
+          "Y": -59.5,
+          "Z": 7.35
+        },
+        "Max": {
+          "X": 29.5,
+          "Y": -0.5,
+          "Z": 9.35
+        }
+      },
+      "Camera": {
+        "discriminator": "Elements.Camera",
+        "angle": {
+          "X": 0.0,
+          "Y": 0.0,
+          "Z": -1.0
+        },
+        "projection": "orthographic"
+      },
+      "Inclusive": false,
+      "Id": "00ee9017-7840-4190-89fc-13099697449d",
+      "Name": "Structure elevation 8.35"
+    },
+    "47a069c2-7e15-4f66-a4d0-9b09e74492fc": {
+      "discriminator": "Elements.ViewScope",
+      "Bounding Box": {
+        "discriminator": "Elements.Geometry.BBox3",
+        "Min": {
+          "X": 0.5,
+          "Y": -59.5,
+          "Z": 11.2
+        },
+        "Max": {
+          "X": 29.5,
+          "Y": -0.5,
+          "Z": 13.2
+        }
+      },
+      "Camera": {
+        "discriminator": "Elements.Camera",
+        "angle": {
+          "X": 0.0,
+          "Y": 0.0,
+          "Z": -1.0
+        },
+        "projection": "orthographic"
+      },
+      "Inclusive": false,
+      "Id": "47a069c2-7e15-4f66-a4d0-9b09e74492fc",
+      "Name": "Structure elevation 12.2"
+    },
+    "8f602a08-fa4f-4c4b-a208-728c0c39ba41": {
+      "discriminator": "Elements.ViewScope",
+      "Bounding Box": {
+        "discriminator": "Elements.Geometry.BBox3",
+        "Min": {
+          "X": 0.5,
+          "Y": -59.5,
+          "Z": 19.0
+        },
+        "Max": {
+          "X": 29.5,
+          "Y": -0.5,
+          "Z": 21.0
+        }
+      },
+      "Camera": {
+        "discriminator": "Elements.Camera",
+        "angle": {
+          "X": 0.0,
+          "Y": 0.0,
+          "Z": -1.0
+        },
+        "projection": "orthographic"
+      },
+      "Inclusive": false,
+      "Id": "8f602a08-fa4f-4c4b-a208-728c0c39ba41",
+      "Name": "Structure elevation 20"
+    }
+  }
+}
\ No newline at end of file
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 90b2dd985..f91e38273 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -264,28 +264,145 @@ internal Model CreateExportModel(bool gatherSubElements)
 
         public static Model GeometricElementModelFromJson(string json)
         {
-            var options = new JsonSerializerOptions();
+            var resolver = new ElementReferenceResolver(null, default);
 
-            // Our custom reference handler will cache elements by id as
-            // they are deserialized, supporting reading elements by id
-            // from JSON.
-            var refHandler = new ElementReferenceHandler(null, default);
-            options.ReferenceHandler = refHandler;
+            var sw = new Stopwatch();
+            sw.Start();
 
-            // Use the model converter here so that we have a chance to 
-            // intercept the creation of elements when things go wrong.
-            // Using the model converter adds 100ms because it has to
-            // call deserialize for each element and trap if the element
-            // is null and report an error.
-            options.Converters.Add(new ModelToGeometricElementsConverter());
+            // Read materials, profiles, geometric elements
+            var elements = new Dictionary<Guid, Element>();
 
-            var model = JsonSerializer.Deserialize<Model>(json, options);
+            using (var doc = JsonDocument.Parse(json))
+            {
+                var root = doc.RootElement;
+                var elementsElement = root.GetProperty("Elements");
+                var transform = JsonSerializer.Deserialize<Transform>(root.GetProperty("Transform"));
 
-            // Resetting the reference handler, empties the internal
-            // elements cache.
-            refHandler.Reset(null, default);
+                Console.WriteLine($"{sw.ElapsedMilliseconds}ms for parsing json");
+                sw.Restart();
 
-            return model;
+                foreach (var element in elementsElement.EnumerateObject())
+                {
+                    Element e = null;
+                    var discriminator = element.Value.GetProperty("discriminator").GetString();
+                    var id = element.Value.GetProperty("Id").GetGuid();
+                    element.Value.TryGetProperty("Name", out var nameProp);
+                    string name;
+                    {
+                        name = nameProp.GetString();
+                    }
+
+                    switch (discriminator)
+                    {
+                        // TODO: Big assumption here - that things are in the right order.
+                        case "Elements.Material":
+                            var colorProp = element.Value.GetProperty("Color");
+                            var color = new Color(
+                                colorProp.GetProperty("Red").GetDouble(),
+                                colorProp.GetProperty("Green").GetDouble(),
+                                colorProp.GetProperty("Blue").GetDouble(),
+                                colorProp.GetProperty("Alpha").GetDouble()
+                            );
+                            var spec = element.Value.GetProperty("SpecularFactor").GetDouble();
+                            var gloss = element.Value.GetProperty("GlossinessFactor").GetDouble();
+
+                            // TODO: Handle all the other color properties
+
+                            e = new Material(name, color, spec, gloss, id: id);
+                            break;
+                        case "Elements.Geometry.Profile":
+                            var perimeter = JsonSerializer.Deserialize<Geometry.Polygon>(element.Value.GetProperty("Perimeter"));
+                            var voids = JsonSerializer.Deserialize<List<Geometry.Polygon>>(element.Value.GetProperty("Voids"));
+                            e = new Profile(perimeter, voids, id, name);
+                            break;
+                        case "Elements.ElementInstance":
+                            var baseDefinition = (GeometricElement)resolver.ResolveReference(element.Value.GetProperty("BaseDefinition").GetString());
+                            var elementTransform = JsonSerializer.Deserialize<Transform>(element.Value.GetProperty("Transform"));
+                            e = new ElementInstance(baseDefinition, elementTransform, name, id);
+                            break;
+                        case "Elements.ModelCurve":
+                            continue;
+                        case "Elements.GridLine":
+                            continue;
+                        default:
+
+                            if (element.Value.TryGetProperty("Perimeter", out _) && element.Value.TryGetProperty("Voids", out _))
+                            {
+                                // TODO: We're handling profile-like things in this way.
+                                perimeter = JsonSerializer.Deserialize<Geometry.Polygon>(element.Value.GetProperty("Perimeter"));
+                                voids = JsonSerializer.Deserialize<List<Geometry.Polygon>>(element.Value.GetProperty("Voids"));
+                                e = new Profile(perimeter, voids, id, name);
+                                break;
+                            }
+
+                            // Qualify element as a geometric element by seeing 
+                            // whether it has a representation.
+                            if (element.Value.TryGetProperty("Representation", out var repProperty))
+                            {
+                                var solidOps = new List<SolidOperation>();
+                                foreach (var solidOp in repProperty.GetProperty("SolidOperations").EnumerateArray())
+                                {
+                                    SolidOperation op = null;
+                                    var isVoid = false;
+                                    if (solidOp.TryGetProperty("IsVoid", out var isVoidElement))
+                                    {
+                                        isVoid = isVoidElement.GetBoolean();
+                                    }
+
+                                    switch (solidOp.GetProperty("discriminator").GetString())
+                                    {
+                                        case "Elements.Geometry.Solids.Extrude":
+                                            var profile = (Profile)resolver.ResolveReference(solidOp.GetProperty("Profile").GetString());
+                                            var height = solidOp.GetProperty("Height").GetDouble();
+                                            var direction = JsonSerializer.Deserialize<Vector3>(solidOp.GetProperty("Direction"));
+                                            op = new Extrude(profile, height, direction, isVoid);
+                                            break;
+                                        case "Elements.Geometry.Solids.Sweep":
+                                            profile = (Profile)resolver.ResolveReference(solidOp.GetProperty("Profile").GetString());
+                                            var curve = DeserializeCurve(solidOp.GetProperty("Curve"));
+                                            var startSetback = solidOp.GetProperty("StartSetback").GetDouble();
+                                            var endSetback = solidOp.GetProperty("EndSetback").GetDouble();
+                                            var profileRotation = 0.0;
+                                            if (solidOp.TryGetProperty("ProfileRotation", out var rotation))
+                                            {
+                                                profileRotation = rotation.GetDouble();
+                                            }
+                                            op = new Sweep(profile, curve, startSetback, endSetback, profileRotation, isVoid);
+                                            break;
+                                        case "Elements.Geometry.Solids.Lamina":
+                                            perimeter = JsonSerializer.Deserialize<Geometry.Polygon>(solidOp.GetProperty("Perimeter"));
+                                            op = new Lamina(perimeter, isVoid);
+                                            break;
+                                    }
+                                    solidOps.Add(op);
+                                }
+                                var rep = new Representation(solidOps);
+                                elementTransform = JsonSerializer.Deserialize<Transform>(element.Value.GetProperty("Transform"));
+                                var material = (Material)resolver.ResolveReference(element.Value.GetProperty("Material").GetString());
+                                var elementId = element.Value.GetProperty("Id").GetGuid();
+                                var isElementDefinition = element.Value.GetProperty("IsElementDefinition").GetBoolean();
+                                e = new GeometricElement(elementTransform, material, rep, isElementDefinition, elementId, name);
+
+                                if (solidOps.Count == 1)
+                                {
+                                    rep.SkipCSGUnion = true;
+                                }
+                            }
+                            break;
+                    }
+                    if (e != null)
+                    {
+                        elements.Add(id, e);
+                        resolver.AddReference(id.ToString(), e);
+                    }
+
+                    // Console.WriteLine($"{sw.ElapsedMilliseconds}ms for deserializing {id}:{discriminator}");
+                    // sw.Restart();
+                }
+
+                var model = new Model(transform, elements);
+                return model;
+            }
         }
 
         /// <summary>
@@ -488,6 +605,24 @@ private static bool IsValidListType(Type t)
             return typeof(Element).IsAssignableFrom(t)
                    || typeof(SolidOperation).IsAssignableFrom(t);
         }
+
+        private static Curve DeserializeCurve(JsonElement jsonCurve)
+        {
+            var discriminator = jsonCurve.GetProperty("discriminator").GetString();
+            switch (discriminator)
+            {
+                case "Elements.Geometry.Line":
+                    return JsonSerializer.Deserialize<Geometry.Line>(jsonCurve);
+                case "Elements.Geometry.Polygon":
+                    return JsonSerializer.Deserialize<Geometry.Polygon>(jsonCurve);
+                case "Elements.Geometry.Polyline":
+                    return JsonSerializer.Deserialize<Polyline>(jsonCurve);
+                case "Elements.Geometry.Arc":
+                    return JsonSerializer.Deserialize<Arc>(jsonCurve);
+                default:
+                    throw new JsonException($"The curve type, {discriminator}, could not be deserialized.");
+            }
+        }
     }
 
     public static class ModelExtensions
diff --git a/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs b/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs
deleted file mode 100644
index aa408f60f..000000000
--- a/Elements/src/Serialization/JSON/ModelToGeometricElementsConverter.cs
+++ /dev/null
@@ -1,157 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-using Elements.Geometry;
-using Elements.Geometry.Solids;
-
-namespace Elements.Serialization.JSON
-{
-    /// <summary>
-    /// Convert a model to a collection of geometric elements.
-    /// </summary>
-    public class ModelToGeometricElementsConverter : JsonConverter<Model>
-    {
-        public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        {
-            var resolver = options.ReferenceHandler.CreateResolver() as ElementReferenceResolver;
-
-            // Read materials, profiles, geometric elements
-            var elements = new Dictionary<Guid, Element>();
-            using (var doc = JsonDocument.ParseValue(ref reader))
-            {
-                var root = doc.RootElement;
-                var elementsElement = root.GetProperty("Elements");
-                var transform = JsonSerializer.Deserialize<Transform>(root.GetProperty("Transform"));
-
-                foreach (var element in elementsElement.EnumerateObject())
-                {
-                    Element e = null;
-                    var discriminator = element.Value.GetProperty("discriminator").GetString();
-                    var id = element.Value.GetProperty("Id").GetGuid();
-                    element.Value.TryGetProperty("Name", out var nameProp);
-                    string name;
-                    {
-                        name = nameProp.GetString();
-                    }
-
-                    switch (discriminator)
-                    {
-                        // TODO: Big assumption here - that things are in the right order.
-                        case "Elements.Material":
-                            e = JsonSerializer.Deserialize<Material>(element.Value);
-                            break;
-                        case "Elements.Geometry.Profile":
-                            e = JsonSerializer.Deserialize<Profile>(element.Value);
-                            break;
-                        case "Elements.ElementInstance":
-                            var baseDefinition = (GeometricElement)resolver.ResolveReference(element.Value.GetProperty("BaseDefinition").GetString());
-                            var elementTransform = JsonSerializer.Deserialize<Transform>(element.Value.GetProperty("Transform"));
-                            e = new ElementInstance(baseDefinition, elementTransform, name, id);
-                            break;
-                        default:
-
-                            if (element.Value.TryGetProperty("Perimeter", out _) && element.Value.TryGetProperty("Voids", out _))
-                            {
-                                // TODO: We're handling profile-like things in this way.
-                                e = JsonSerializer.Deserialize<Profile>(element.Value);
-                                break;
-                            }
-
-                            // Qualify element as a geometric element by seeing 
-                            // whether it has a representation.
-                            if (element.Value.TryGetProperty("Representation", out var repProperty))
-                            {
-                                if (discriminator == "Elements.ModelCurve")
-                                {
-                                    // TODO: Handle model curves.
-                                    continue;
-                                }
-                                else if (discriminator == "Elements.GridLine")
-                                {
-                                    // TODO: Handle grid lines.
-                                    continue;
-                                }
-
-                                var solidOps = new List<SolidOperation>();
-                                foreach (var solidOp in repProperty.GetProperty("SolidOperations").EnumerateArray())
-                                {
-                                    SolidOperation op = null;
-                                    var isVoid = false;
-                                    if (solidOp.TryGetProperty("IsVoid", out var isVoidElement))
-                                    {
-                                        isVoid = isVoidElement.GetBoolean();
-                                    }
-
-                                    switch (solidOp.GetProperty("discriminator").GetString())
-                                    {
-                                        case "Elements.Geometry.Solids.Extrude":
-                                            var profile = (Profile)resolver.ResolveReference(solidOp.GetProperty("Profile").GetString());
-                                            var height = solidOp.GetProperty("Height").GetDouble();
-                                            var direction = JsonSerializer.Deserialize<Vector3>(solidOp.GetProperty("Direction"));
-                                            op = new Extrude(profile, height, direction, isVoid);
-                                            break;
-                                        case "Elements.Geometry.Solids.Sweep":
-                                            profile = (Profile)resolver.ResolveReference(solidOp.GetProperty("Profile").GetString());
-                                            var curve = DeserializeCurve(solidOp.GetProperty("Curve"));
-                                            var startSetback = solidOp.GetProperty("StartSetback").GetDouble();
-                                            var endSetback = solidOp.GetProperty("EndSetback").GetDouble();
-                                            var profileRotation = 0.0;
-                                            if (solidOp.TryGetProperty("ProfileRotation", out var rotation))
-                                            {
-                                                profileRotation = rotation.GetDouble();
-                                            }
-                                            op = new Sweep(profile, curve, startSetback, endSetback, profileRotation, isVoid);
-                                            break;
-                                        case "Elements.Geometry.Solids.Lamina":
-                                            var perimeter = JsonSerializer.Deserialize<Polygon>(solidOp.GetProperty("Perimeter"));
-                                            op = new Lamina(perimeter, isVoid);
-                                            break;
-                                    }
-                                    solidOps.Add(op);
-                                }
-                                var rep = new Representation(solidOps);
-                                elementTransform = JsonSerializer.Deserialize<Transform>(element.Value.GetProperty("Transform"));
-                                var material = (Material)resolver.ResolveReference(element.Value.GetProperty("Material").GetString());
-                                var elementId = element.Value.GetProperty("Id").GetGuid();
-                                var isElementDefinition = element.Value.GetProperty("IsElementDefinition").GetBoolean();
-                                e = new GeometricElement(elementTransform, material, rep, isElementDefinition, elementId, name);
-                            }
-                            break;
-                    }
-                    if (e != null)
-                    {
-                        elements.Add(id, e);
-                        resolver.AddReference(id.ToString(), e);
-                    }
-                }
-
-                var model = new Model(transform, elements);
-                return model;
-            }
-        }
-
-        internal static Curve DeserializeCurve(JsonElement jsonCurve)
-        {
-            var discriminator = jsonCurve.GetProperty("discriminator").GetString();
-            switch (discriminator)
-            {
-                case "Elements.Geometry.Line":
-                    return JsonSerializer.Deserialize<Line>(jsonCurve);
-                case "Elements.Geometry.Polygon":
-                    return JsonSerializer.Deserialize<Polygon>(jsonCurve);
-                case "Elements.Geometry.Polyline":
-                    return JsonSerializer.Deserialize<Polyline>(jsonCurve);
-                case "Elements.Geometry.Arc":
-                    return JsonSerializer.Deserialize<Arc>(jsonCurve);
-                default:
-                    throw new JsonException($"The curve type, {discriminator}, could not be deserialized.");
-            }
-        }
-
-        public override void Write(Utf8JsonWriter writer, Model value, JsonSerializerOptions options)
-        {
-            throw new NotImplementedException();
-        }
-    }
-}
\ No newline at end of file

From 7684f68322c63ad23e9fecc133a15e2d0caa206e Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 12 Jul 2022 18:01:07 -0700
Subject: [PATCH 116/150] Don't log for render data.

---
 .../src/Serialization/glTF/GltfExtensions.cs  | 27 +++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/Elements/src/Serialization/glTF/GltfExtensions.cs b/Elements/src/Serialization/glTF/GltfExtensions.cs
index 60311b42f..a72c2af4b 100644
--- a/Elements/src/Serialization/glTF/GltfExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfExtensions.cs
@@ -16,6 +16,7 @@
 using SixLabors.ImageSharp.Formats.Png;
 using SixLabors.ImageSharp;
 using Image = glTFLoader.Schema.Image;
+using System.Diagnostics;
 
 [assembly: InternalsVisibleTo("Hypar.Elements.Tests")]
 [assembly: InternalsVisibleTo("Elements.Benchmarks")]
@@ -125,20 +126,27 @@ public static void ToGlTF(this Model model, string path, bool useBinarySerializa
         /// <returns>A byte array representing the model.</returns>
         public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool mergeVertices = false)
         {
+            var sw = new Stopwatch();
             var gltf = InitializeGlTF(model, out var buffers, out _, drawEdges, mergeVertices);
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing the glTF");
+            sw.Restart();
+
             if (gltf == null)
             {
                 return null;
             }
             var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers.ToArray(buffers.Count));
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for merging the buffers");
+            sw.Restart();
 
             byte[] bytes;
             using (var ms = new MemoryStream())
-            using (var writer = new BinaryWriter(ms))
             {
-                gltf.SaveBinaryModel(mergedBuffer, writer);
+                gltf.SaveBinaryModel(mergedBuffer, ms);
                 bytes = ms.ToArray();
             }
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for saving the binary model");
+            sw.Restart();
 
             return bytes;
         }
@@ -843,6 +851,7 @@ internal static void ToGlb(this Solid solid, string path)
         private static bool SaveGlb(Model model, string path, out List<BaseError> errors, bool drawEdges = false, bool mergeVertices = false)
         {
             var gltf = InitializeGlTF(model, out var buffers, out errors, drawEdges, mergeVertices);
+
             if (gltf == null)
             {
                 return false;
@@ -850,7 +859,9 @@ private static bool SaveGlb(Model model, string path, out List<BaseError> errors
 
             //TODO handle initializing multiple gltf buffers at once.
             var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers.ToArray(buffers.Count));
+
             gltf.SaveBinaryModel(mergedBuffer, path);
+
             return true;
         }
 
@@ -858,6 +869,7 @@ private static bool SaveGlb(Model model, string path, out List<BaseError> errors
         private static bool SaveGltf(Model model, string path, out List<BaseError> errors, bool drawEdges = false, bool mergeVertices = false)
         {
             var gltf = InitializeGlTF(model, out List<byte[]> buffers, out errors, drawEdges, mergeVertices);
+
             if (gltf == null)
             {
                 return false;
@@ -865,7 +877,9 @@ private static bool SaveGltf(Model model, string path, out List<BaseError> error
 
             // Buffers must be saved first, URIs may be set or modified inside this method.
             gltf.SaveBuffersAndAddUris(path, buffers);
+
             gltf.SaveModel(path);
+
             return true;
         }
 
@@ -875,6 +889,8 @@ internal static Gltf InitializeGlTF(Model model,
                                             bool drawEdges = false,
                                             bool mergeVertices = false)
         {
+            var sw = new Stopwatch();
+
             errors = new List<BaseError>();
             var schemaBuffer = new glTFLoader.Schema.Buffer();
             var schemaBuffers = new List<glTFLoader.Schema.Buffer> { schemaBuffer };
@@ -965,6 +981,10 @@ internal static Gltf InitializeGlTF(Model model,
             var meshElementMap = new Dictionary<Guid, List<int>>();
             var nodeElementMap = new Dictionary<Guid, ProtoNode>();
             var meshTransformMap = new Dictionary<Guid, Transform>();
+
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing the glTF");
+            sw.Restart();
+
             foreach (var e in elements)
             {
                 // Check if we'll overrun the index size
@@ -1058,6 +1078,9 @@ internal static Gltf InitializeGlTF(Model model,
 
             allBuffers[0] = buffer.ToArray(buffer.Count);
 
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for finalizing the glTF");
+            sw.Restart();
+
             return gltf;
         }
 

From a335be8ae9687973f4fccbfc5f73ba7ec307b7cf Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 13 Jul 2022 14:16:52 -0700
Subject: [PATCH 117/150] Don't AOT compile.

---
 Elements.Wasm/Elements.Wasm.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements.Wasm/Elements.Wasm.csproj b/Elements.Wasm/Elements.Wasm.csproj
index 2c7565b3b..466a4e541 100644
--- a/Elements.Wasm/Elements.Wasm.csproj
+++ b/Elements.Wasm/Elements.Wasm.csproj
@@ -5,7 +5,7 @@
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
-    <RunAOTCompilation>true</RunAOTCompilation>
+    <!-- <RunAOTCompilation>true</RunAOTCompilation> -->
     <!-- Don't cache boot resources to avoid checksum failures for re-bundled files. -->
     <BlazorCacheBootResources>false</BlazorCacheBootResources>
   </PropertyGroup>

From ba877846d7babc9c0b2f432ee68704e9891e09bf Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 13 Jul 2022 14:19:05 -0700
Subject: [PATCH 118/150] Add the tower model.

---
 Elements/test/models/Geometry/tower.json | 144757 ++++++++++++++++++++
 1 file changed, 144757 insertions(+)
 create mode 100644 Elements/test/models/Geometry/tower.json

diff --git a/Elements/test/models/Geometry/tower.json b/Elements/test/models/Geometry/tower.json
new file mode 100644
index 000000000..a8ad0ba51
--- /dev/null
+++ b/Elements/test/models/Geometry/tower.json
@@ -0,0 +1,144757 @@
+{
+  "Transform": {
+    "Matrix": {
+      "Components": [
+        1.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        1.0,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        1.0,
+        0.0
+      ]
+    }
+  },
+  "Elements": {
+    "77a9f129-0920-40f0-9e77-044b189f100b": {
+      "discriminator": "Elements.Geometry.Profiles.WideFlangeProfile",
+      "d": 0.40386,
+      "tw": 0.038862,
+      "bf": 0.33274,
+      "tf": 0.062738,
+      "Perimeter": {
+        "discriminator": "Elements.Geometry.Polygon",
+        "Vertices": [
+          {
+            "X": -0.16637,
+            "Y": 0.20193,
+            "Z": 0.0
+          },
+          {
+            "X": -0.16637,
+            "Y": 0.13919199999999998,
+            "Z": 0.0
+          },
+          {
+            "X": -0.019431,
+            "Y": 0.13919199999999998,
+            "Z": 0.0
+          },
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\ No newline at end of file

From 99f6143231b334c805af34bb17be5d5424a9628b Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 13 Jul 2022 14:24:29 -0700
Subject: [PATCH 119/150] Convert to debug statements.

---
 Elements/src/Serialization/glTF/GltfExtensions.cs | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/Elements/src/Serialization/glTF/GltfExtensions.cs b/Elements/src/Serialization/glTF/GltfExtensions.cs
index a72c2af4b..c22397bd8 100644
--- a/Elements/src/Serialization/glTF/GltfExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfExtensions.cs
@@ -128,7 +128,7 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
         {
             var sw = new Stopwatch();
             var gltf = InitializeGlTF(model, out var buffers, out _, drawEdges, mergeVertices);
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing the glTF");
+            Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing the glTF");
             sw.Restart();
 
             if (gltf == null)
@@ -136,7 +136,7 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
                 return null;
             }
             var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers.ToArray(buffers.Count));
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for merging the buffers");
+            Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for merging the buffers");
             sw.Restart();
 
             byte[] bytes;
@@ -145,7 +145,7 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
                 gltf.SaveBinaryModel(mergedBuffer, ms);
                 bytes = ms.ToArray();
             }
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for saving the binary model");
+            Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for saving the binary model");
             sw.Restart();
 
             return bytes;
@@ -982,7 +982,7 @@ internal static Gltf InitializeGlTF(Model model,
             var nodeElementMap = new Dictionary<Guid, ProtoNode>();
             var meshTransformMap = new Dictionary<Guid, Transform>();
 
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing the glTF");
+            Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing.");
             sw.Restart();
 
             foreach (var e in elements)
@@ -1024,6 +1024,10 @@ internal static Gltf InitializeGlTF(Model model,
                     errors.Add(new ElementError(e.Id, ex));
                 }
             }
+
+            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for gathering element geometry.");
+            sw.Restart();
+
             if (allBuffers.Sum(b => b.Count()) + buffer.Count == 0 && lights.Count == 0)
             {
                 return null;
@@ -1078,7 +1082,7 @@ internal static Gltf InitializeGlTF(Model model,
 
             allBuffers[0] = buffer.ToArray(buffer.Count);
 
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for finalizing the glTF");
+            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for finalizing.");
             sw.Restart();
 
             return gltf;

From 7f8fa2003a6f1ca88f11fab08a24e632a6e6c812 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 13 Jul 2022 14:25:44 -0700
Subject: [PATCH 120/150] Convert to debug statements.

---
 Elements.Wasm/ElementsAPI.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Elements.Wasm/ElementsAPI.cs b/Elements.Wasm/ElementsAPI.cs
index 6ce782f04..c2fac1523 100644
--- a/Elements.Wasm/ElementsAPI.cs
+++ b/Elements.Wasm/ElementsAPI.cs
@@ -34,10 +34,10 @@ public static Task<byte[]> ModelToGlbBytes(string json)
         var sw = new Stopwatch();
         sw.Start();
         var model = Model.GeometricElementModelFromJson(json);
-        Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the model from json.");
+        Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the model from json.");
         sw.Restart();
         var result = Task.FromResult(model.ToGlTF());
-        Console.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the glb from json.");
+        Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for creating the glb from json.");
         return result;
     }
 

From 3cd35c1c7562f511518c4d16b15b22d9cff90772 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 13 Jul 2022 15:00:36 -0700
Subject: [PATCH 121/150] Invalidate after deploy.

---
 Elements.Wasm/deploy.sh | 39 +++++++++------------------------------
 1 file changed, 9 insertions(+), 30 deletions(-)

diff --git a/Elements.Wasm/deploy.sh b/Elements.Wasm/deploy.sh
index 1a0e67d57..694ace300 100755
--- a/Elements.Wasm/deploy.sh
+++ b/Elements.Wasm/deploy.sh
@@ -1,48 +1,27 @@
 #!/usr/bin/env bash
 
-configuration='debug'
+source='./bin/Release/net6.0/wwwroot/_framework'
 
-while getopts c: flag
-do
-    case "${flag}" in
-        c) configuration=${OPTARG};;
-    esac
-done
+echo "Building the app..."
+dotnet publish -c release
 
-if [ $configuration == 'release' ]
-then
-    source='./bin/Release/net6.0/wwwroot/_framework'
-elif [ $configuration == 'debug'  ]
-then
-    source='./bin/Debug/net6.0/wwwroot/_framework'
-else
-    echo "The configuration, $configuration, is invalid. Only 'release' and 'debug' are supported."
-    exit
-fi
-
-# echo "Building the app in $configuration configuration."
-# if [ $configuration == 'release' ]
-# then
-#     dotnet publish -c release
-# elif [ $configuration == 'debug'  ]
-# then
-#     dotnet build -c release
-# fi
-
-echo 'Echo creating deploy directory.'
+echo 'Creating deploy directory...'
 rm -r deploy
 mkdir deploy
 mkdir deploy/elements
 mkdir deploy/elements/_framework
 
-echo "Copying assets from $source"
+echo "Copying assets from $source..."
 rsync -av $source deploy/elements
 cp ./wwwroot/elements.js deploy/elements/elements.js 
 cp ./wwwroot/index.html deploy/index.html
 
-echo "Uploading assets to s3"
+echo "Uploading assets to s3..."
 aws s3 sync "$source" s3://elements-wasm/ --exclude "*.gz" --exclude "*.br"
 
+echo "Creating an invalidation..."
+aws cloudfront create-invalidation --distribution-id E19YQ16H2KTDNU --paths "/*"
+
 # echo 'Running the test application.'
 # cd deploy
 # python3 -m http.server
\ No newline at end of file

From 7ee4ff2cc59e95a64ae620bea88fac30da2132a0 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 13 Jul 2022 15:00:46 -0700
Subject: [PATCH 122/150] Mode debug statements.

---
 Elements/src/Model.cs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index f91e38273..a2073c9da 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -278,7 +278,7 @@ public static Model GeometricElementModelFromJson(string json)
                 var elementsElement = root.GetProperty("Elements");
                 var transform = JsonSerializer.Deserialize<Transform>(root.GetProperty("Transform"));
 
-                Console.WriteLine($"{sw.ElapsedMilliseconds}ms for parsing json");
+                Debug.WriteLine($"JSON: {sw.ElapsedMilliseconds}ms for parsing json");
                 sw.Restart();
 
                 foreach (var element in elementsElement.EnumerateObject())
@@ -395,11 +395,11 @@ public static Model GeometricElementModelFromJson(string json)
                         elements.Add(id, e);
                         resolver.AddReference(id.ToString(), e);
                     }
-
-                    // Console.WriteLine($"{sw.ElapsedMilliseconds}ms for deserializing {id}:{discriminator}");
-                    // sw.Restart();
                 }
 
+                Debug.WriteLine($"JSON: {sw.ElapsedMilliseconds}ms for deserializing all elements.");
+                sw.Restart();
+
                 var model = new Model(transform, elements);
                 return model;
             }

From 42b0f7a9dafbd9d72276fd548abb45fdbcefb7de Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 13 Jul 2022 15:11:56 -0700
Subject: [PATCH 123/150] Make the local example work.

---
 Elements.Wasm/wwwroot/index.html | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index a761b3851..2e7aba0f5 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -18,8 +18,8 @@
 </head>
 
 <body>
-    <script type="module" src="elements.js"></script>
-    <script src="_framework/blazor.webassembly.js"></script>
+    <script type="module" src="elements/elements.js"></script>
+    <script src="elements/_framework/blazor.webassembly.js" autostart="false"></script>
     <script type="module-shim">
         function loadModel(glb) {
             const blob = new Blob([new Uint8Array(glb)], { type: "application/octet-stream" });
@@ -72,6 +72,26 @@
             })
         }
 
+        async function startBlazor() {
+            await Blazor.start({
+                loadBootResource: function (type, name, defaultUri, integrity) {
+                    // console.log(`Loading: '${type}', '${name}', '${defaultUri}', '${integrity}'`);
+                    const root = 'https://d2kpvuc6xe03st.cloudfront.net'
+                    switch (type) {
+                        case 'manifest':
+                        case 'assembly':
+                        case 'globalization':
+                        case 'dotnetjs':
+                        case 'dotnetwasm':
+                        case 'timezonedata':
+                            return `${root}/${name}`
+                    }
+                    return null
+                },
+            })
+        }
+        startBlazor()
+
         window.model = {
             reset: () => { reset(); },
             runTest: (value) => { runTest(value); },

From 0303dd3f1c52afdd3de37a8abf78d04d93259c82 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 13 Jul 2022 15:18:03 -0700
Subject: [PATCH 124/150] Better docs on deployment.

---
 Elements.Wasm/README.md | 10 +++++++++-
 Elements.Wasm/deploy.sh |  6 +-----
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/Elements.Wasm/README.md b/Elements.Wasm/README.md
index 5c65d3a80..ac8e79df6 100644
--- a/Elements.Wasm/README.md
+++ b/Elements.Wasm/README.md
@@ -1,11 +1,19 @@
 # Elements.Wasm
 This is a minimal web assembly project.
 
-### Run
+### Deploy
+The elements web assembly assets are served from S3 via cloud front. The deploy script will copy and deploy all necessary files to that bucket.
 ```
 ./deploy.sh
 ```
 
+### Run
+After using the deployment script above, you can run a local application against the deployed files by doing the following.
+```
+cd deploy
+python3 -m http.server
+```
+
 ### Files
 `Elements.js`
 - The javascript elements API. Elements is made available on the window object.
diff --git a/Elements.Wasm/deploy.sh b/Elements.Wasm/deploy.sh
index 694ace300..139d86b0f 100755
--- a/Elements.Wasm/deploy.sh
+++ b/Elements.Wasm/deploy.sh
@@ -20,8 +20,4 @@ echo "Uploading assets to s3..."
 aws s3 sync "$source" s3://elements-wasm/ --exclude "*.gz" --exclude "*.br"
 
 echo "Creating an invalidation..."
-aws cloudfront create-invalidation --distribution-id E19YQ16H2KTDNU --paths "/*"
-
-# echo 'Running the test application.'
-# cd deploy
-# python3 -m http.server
\ No newline at end of file
+aws cloudfront create-invalidation --distribution-id E19YQ16H2KTDNU --paths "/*"
\ No newline at end of file

From 680500cce22d975e4d47cd2673112bddf4a89309 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Wed, 13 Jul 2022 15:47:31 -0700
Subject: [PATCH 125/150] Update global.json.

---
 Elements.Wasm/Elements.Wasm.csproj | 2 +-
 global.json                        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Elements.Wasm/Elements.Wasm.csproj b/Elements.Wasm/Elements.Wasm.csproj
index 466a4e541..b298fd7f1 100644
--- a/Elements.Wasm/Elements.Wasm.csproj
+++ b/Elements.Wasm/Elements.Wasm.csproj
@@ -5,7 +5,7 @@
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
-    <!-- <RunAOTCompilation>true</RunAOTCompilation> -->
+    <RunAOTCompilation>false</RunAOTCompilation>
     <!-- Don't cache boot resources to avoid checksum failures for re-bundled files. -->
     <BlazorCacheBootResources>false</BlazorCacheBootResources>
   </PropertyGroup>
diff --git a/global.json b/global.json
index 5d561e03f..278e9d1ef 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
     "sdk": {
-        "version": "3.1",
+        "version": "6.0.200",
         "rollForward": "minor"
     }
 }
\ No newline at end of file

From a3d2ca986f6d8d271e4317434f43378c8b9e9f0a Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Jul 2022 15:59:56 -0700
Subject: [PATCH 126/150] Do the AOT.

---
 Elements.Wasm/Elements.Wasm.csproj | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements.Wasm/Elements.Wasm.csproj b/Elements.Wasm/Elements.Wasm.csproj
index b298fd7f1..2c7565b3b 100644
--- a/Elements.Wasm/Elements.Wasm.csproj
+++ b/Elements.Wasm/Elements.Wasm.csproj
@@ -5,7 +5,7 @@
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
-    <RunAOTCompilation>false</RunAOTCompilation>
+    <RunAOTCompilation>true</RunAOTCompilation>
     <!-- Don't cache boot resources to avoid checksum failures for re-bundled files. -->
     <BlazorCacheBootResources>false</BlazorCacheBootResources>
   </PropertyGroup>

From 92d1a615578f40ac244082f8ed041a86ce60d74b Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sat, 16 Jul 2022 16:12:29 -0700
Subject: [PATCH 127/150] Clean up deploy.

---
 Elements.Wasm/README.md          |  6 +++---
 Elements.Wasm/deploy.sh          | 11 -----------
 Elements.Wasm/wwwroot/index.html |  6 +++---
 3 files changed, 6 insertions(+), 17 deletions(-)

diff --git a/Elements.Wasm/README.md b/Elements.Wasm/README.md
index ac8e79df6..f49bcf6d5 100644
--- a/Elements.Wasm/README.md
+++ b/Elements.Wasm/README.md
@@ -1,8 +1,8 @@
 # Elements.Wasm
 This is a minimal web assembly project.
 
-### Deploy
-The elements web assembly assets are served from S3 via cloud front. The deploy script will copy and deploy all necessary files to that bucket.
+### Build and Deploy
+The elements web assembly assets are served from S3 via cloud front at https://elements.hypar.io. The deploy script will publish the "app" and copy and deploy all necessary files.
 ```
 ./deploy.sh
 ```
@@ -10,7 +10,7 @@ The elements web assembly assets are served from S3 via cloud front. The deploy
 ### Run
 After using the deployment script above, you can run a local application against the deployed files by doing the following.
 ```
-cd deploy
+cd wwwroot
 python3 -m http.server
 ```
 
diff --git a/Elements.Wasm/deploy.sh b/Elements.Wasm/deploy.sh
index 139d86b0f..eabc08cc2 100755
--- a/Elements.Wasm/deploy.sh
+++ b/Elements.Wasm/deploy.sh
@@ -5,17 +5,6 @@ source='./bin/Release/net6.0/wwwroot/_framework'
 echo "Building the app..."
 dotnet publish -c release
 
-echo 'Creating deploy directory...'
-rm -r deploy
-mkdir deploy
-mkdir deploy/elements
-mkdir deploy/elements/_framework
-
-echo "Copying assets from $source..."
-rsync -av $source deploy/elements
-cp ./wwwroot/elements.js deploy/elements/elements.js 
-cp ./wwwroot/index.html deploy/index.html
-
 echo "Uploading assets to s3..."
 aws s3 sync "$source" s3://elements-wasm/ --exclude "*.gz" --exclude "*.br"
 
diff --git a/Elements.Wasm/wwwroot/index.html b/Elements.Wasm/wwwroot/index.html
index 2e7aba0f5..31ebd135b 100644
--- a/Elements.Wasm/wwwroot/index.html
+++ b/Elements.Wasm/wwwroot/index.html
@@ -18,8 +18,8 @@
 </head>
 
 <body>
-    <script type="module" src="elements/elements.js"></script>
-    <script src="elements/_framework/blazor.webassembly.js" autostart="false"></script>
+    <script type="module" src="elements.js"></script>
+    <script src="https://elements.hypar.io/blazor.webassembly.js" autostart="false"></script>
     <script type="module-shim">
         function loadModel(glb) {
             const blob = new Blob([new Uint8Array(glb)], { type: "application/octet-stream" });
@@ -76,7 +76,7 @@
             await Blazor.start({
                 loadBootResource: function (type, name, defaultUri, integrity) {
                     // console.log(`Loading: '${type}', '${name}', '${defaultUri}', '${integrity}'`);
-                    const root = 'https://d2kpvuc6xe03st.cloudfront.net'
+                    const root = 'https://elements.hypar.io'
                     switch (type) {
                         case 'manifest':
                         case 'assembly':

From 65085ccde502e18f52c669a7ea7b16ba3a842c60 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 13:38:30 -0700
Subject: [PATCH 128/150] Attempt graphic buffer preallocation.

---
 Elements/src/Geometry/GraphicsBuffers.cs      |   8 ++
 .../src/Serialization/glTF/GltfExtensions.cs  | 108 ++++++++++++------
 2 files changed, 84 insertions(+), 32 deletions(-)

diff --git a/Elements/src/Geometry/GraphicsBuffers.cs b/Elements/src/Geometry/GraphicsBuffers.cs
index 35ef48918..60d60bcd9 100644
--- a/Elements/src/Geometry/GraphicsBuffers.cs
+++ b/Elements/src/Geometry/GraphicsBuffers.cs
@@ -227,5 +227,13 @@ public void AddIndex(ushort index)
             this.IMin = Math.Min(this.IMin, index);
         }
 
+        internal static int PreallocationSize()
+        {
+            // Assume a fully vertex-colored mesh of the size required to contain 30k vertices.
+            // Postion, Normal, Color, Index, UV
+            var floatSize = sizeof(float);
+            var intSize = sizeof(int);
+            return (floatSize * 3 + floatSize * 3 + floatSize * 4 + intSize + floatSize * 2) * 30000;
+        }
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Serialization/glTF/GltfExtensions.cs b/Elements/src/Serialization/glTF/GltfExtensions.cs
index e52cd9c30..8541b413f 100644
--- a/Elements/src/Serialization/glTF/GltfExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfExtensions.cs
@@ -529,8 +529,7 @@ private static int AddBufferView(List<BufferView> bufferViews, int buffer, int b
             return bufferViews.Count - 1;
         }
 
-        internal static int AddTriangleMesh(this Gltf gltf,
-                                            string name,
+        internal static int AddTriangleMesh(string name,
                                             List<byte> buffer,
                                             List<BufferView> bufferViews,
                                             List<Accessor> accessors,
@@ -634,8 +633,7 @@ internal static int AddTriangleMesh(this Gltf gltf,
             return meshes.Count - 1;
         }
 
-        internal static int AddPointsOrLines(this Gltf gltf,
-                                        string name,
+        internal static int AddPointsOrLines(string name,
                                         List<byte> buffer,
                                         List<BufferView> bufferViews,
                                         List<Accessor> accessors,
@@ -772,7 +770,7 @@ internal static void ToGlb(this Solid solid, string path)
                                               buffer,
                                               bufferViews);
 
-            var mesh = new Elements.Geometry.Mesh();
+            var mesh = new Geometry.Mesh();
             solid.Tessellate(ref mesh);
             mesh.ComputeNormals();
 
@@ -780,13 +778,13 @@ internal static void ToGlb(this Solid solid, string path)
 
             var accessors = new List<Accessor>();
 
-            var meshId = gltf.AddTriangleMesh("mesh",
-                                              buffer,
-                                              bufferViews,
-                                              accessors,
-                                              materials[BuiltInMaterials.Default.Id.ToString()],
-                                              gbuffers,
-                                              meshes);
+            var meshId = AddTriangleMesh("mesh",
+                                         buffer,
+                                         bufferViews,
+                                         accessors,
+                                         materials[BuiltInMaterials.Default.Id.ToString()],
+                                         gbuffers,
+                                         meshes);
 
             NodeUtilities.CreateNodeForMesh(meshId, nodes, null);
 
@@ -812,7 +810,16 @@ internal static void ToGlb(this Solid solid, string path)
                 // Draw standard edges
                 var id = $"{100000}_curve";
                 var gb = vertices.ToArray(vertices.Count).ToGraphicsBuffers();
-                gltf.AddPointsOrLines(id, buffer, bufferViews, accessors, materials[BuiltInMaterials.Edges.Id.ToString()], new List<GraphicsBuffers>() { gb }, MeshPrimitive.ModeEnum.LINES, meshes, nodes, null);
+                AddPointsOrLines(id,
+                                 buffer,
+                                 bufferViews,
+                                 accessors,
+                                 materials[BuiltInMaterials.Edges.Id.ToString()],
+                                 new List<GraphicsBuffers>() { gb },
+                                 MeshPrimitive.ModeEnum.LINES,
+                                 meshes,
+                                 nodes,
+                                 null);
             }
 
             if (verticesHighlighted.Count > 0)
@@ -820,7 +827,16 @@ internal static void ToGlb(this Solid solid, string path)
                 // Draw highlighted edges
                 var id = $"{100001}_curve";
                 var gb = verticesHighlighted.ToArray(verticesHighlighted.Count).ToGraphicsBuffers();
-                gltf.AddPointsOrLines(id, buffer, bufferViews, accessors, materials[BuiltInMaterials.EdgesHighlighted.Id.ToString()], new List<GraphicsBuffers>() { gb }, MeshPrimitive.ModeEnum.LINES, meshes, nodes, null);
+                AddPointsOrLines(id,
+                                 buffer,
+                                 bufferViews,
+                                 accessors,
+                                 materials[BuiltInMaterials.EdgesHighlighted.Id.ToString()],
+                                 new List<GraphicsBuffers>() { gb },
+                                 MeshPrimitive.ModeEnum.LINES,
+                                 meshes,
+                                 nodes,
+                                 null);
             }
 
             var buff = new glTFLoader.Schema.Buffer
@@ -879,8 +895,18 @@ internal static Gltf InitializeGlTF(Model model,
             errors = new List<BaseError>();
             var schemaBuffer = new glTFLoader.Schema.Buffer();
             var schemaBuffers = new List<glTFLoader.Schema.Buffer> { schemaBuffer };
-            var buffer = new List<byte>();
-            allBuffers = new List<byte[]> { Array.Empty<byte>() };
+
+            // Attempt to pre-allocate these lists. This won't be perfect.
+            // Before processing the geometry of an element we can't know
+            // how much to allocate. In the worst case, this will reduce 
+            // the list resizing.
+            // TODO: In future work where we update element geometry during 
+            // UpdateRepresentations, we will know at this moment how big the
+            // geometry for an element is, and we should tighten this up.
+            var elementCount = model.AllElementsAssignableFromType<GeometricElement>().Count();
+            var buffer = new List<byte>(elementCount * GraphicsBuffers.PreallocationSize());
+            var contentElementCount = model.AllElementsAssignableFromType<ContentElement>().Count();
+            allBuffers = new List<byte[]>(contentElementCount * GraphicsBuffers.PreallocationSize()) { Array.Empty<byte>() };
 
             var gltf = new Gltf();
             var asset = new Asset
@@ -1020,7 +1046,16 @@ internal static Gltf InitializeGlTF(Model model,
                     }
                     var id = $"{GetNextId()}_edge";
                     var gb = lineSet.ToGraphicsBuffers();
-                    gltf.AddPointsOrLines(id, buffer, bufferViews, accessors, materialIndexMap[BuiltInMaterials.Edges.Id.ToString()], new List<GraphicsBuffers>() { gb }, MeshPrimitive.ModeEnum.LINES, meshes, nodes, null);
+                    AddPointsOrLines(id,
+                                     buffer,
+                                     bufferViews,
+                                     accessors,
+                                     materialIndexMap[BuiltInMaterials.Edges.Id.ToString()],
+                                     new List<GraphicsBuffers>() { gb },
+                                     MeshPrimitive.ModeEnum.LINES,
+                                     meshes,
+                                     nodes,
+                                     null);
                 }
             }
 
@@ -1230,7 +1265,16 @@ private static void GetRenderDataForElement(Element e,
             {
                 if (ge.TryToGraphicsBuffers(out List<GraphicsBuffers> gb, out string id, out MeshPrimitive.ModeEnum? mode))
                 {
-                    gltf.AddPointsOrLines(id, buffer, bufferViews, accessors, materialIndexMap[ge.Material.Id.ToString()], gb, (MeshPrimitive.ModeEnum)mode, meshes, nodes, ge.Transform);
+                    AddPointsOrLines(id,
+                                     buffer,
+                                     bufferViews,
+                                     accessors,
+                                     materialIndexMap[ge.Material.Id.ToString()],
+                                     gb,
+                                     (MeshPrimitive.ModeEnum)mode,
+                                     meshes,
+                                     nodes,
+                                     ge.Transform);
                 }
             }
 
@@ -1247,13 +1291,13 @@ private static void GetRenderDataForElement(Element e,
 
                 // TODO(Ian): Remove this cast to GeometricElement when we
                 // consolidate mesh under geometric representations.
-                meshId = gltf.AddTriangleMesh(e.Id + "_mesh",
-                                     buffer,
-                                     bufferViews,
-                                     accessors,
-                                     materialIndexMap[materialId],
-                                     gbuffers,
-                                     meshes);
+                meshId = AddTriangleMesh(e.Id + "_mesh",
+                                         buffer,
+                                         bufferViews,
+                                         accessors,
+                                         materialIndexMap[materialId],
+                                         gbuffers,
+                                         meshes);
 
                 if (!meshElementMap.ContainsKey(e.Id))
                 {
@@ -1454,13 +1498,13 @@ private static int ProcessSolidsAsCSG(GeometricElement geometricElement,
                 return -1;
             }
 
-            return gltf.AddTriangleMesh(id + "_mesh",
-                                        buffer,
-                                        bufferViews,
-                                        accessors,
-                                        materials[materialId],
-                                        buffers,
-                                        meshes);
+            return AddTriangleMesh(id + "_mesh",
+                                   buffer,
+                                   bufferViews,
+                                   accessors,
+                                   materials[materialId],
+                                   buffers,
+                                   meshes);
         }
     }
 }

From e89188951019dfd36f969e235b80570b04997e5a Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 13:54:25 -0700
Subject: [PATCH 129/150] More preallocation logic.

---
 Elements.Benchmarks/Trace.cs             | 32 ++++++++++++++++++------
 Elements/src/Geometry/GraphicsBuffers.cs | 16 ++++++------
 2 files changed, 33 insertions(+), 15 deletions(-)

diff --git a/Elements.Benchmarks/Trace.cs b/Elements.Benchmarks/Trace.cs
index 5aaf7e45c..3bdf7023d 100644
--- a/Elements.Benchmarks/Trace.cs
+++ b/Elements.Benchmarks/Trace.cs
@@ -8,30 +8,46 @@ namespace Elements.Benchmarks
 {
     [EventPipeProfiler(EventPipeProfile.CpuSampling)]
     [SimpleJob]
+    [MemoryDiagnoser]
     public class TraceJsonSerialization
     {
+        private Model _model;
+
+        [GlobalSetup]
+        public void GlobalSetup()
+        {
+            var factory = new HSSPipeProfileFactory();
+            var hssProfiles = factory.AllProfiles().ToList();
+            _model = ElementCreation.DrawAllBeams(hssProfiles);
+        }
+
         [Benchmark(Description = "Create all HSS beams and serialize to JSON.")]
         public void TraceModelCreation()
         {
             Validators.Validator.DisableValidationOnConstruction = true;
-            var factory = new HSSPipeProfileFactory();
-            var hssProfiles = factory.AllProfiles().ToList();
-            var model = ElementCreation.DrawAllBeams(hssProfiles);
-            model.ToJson(gatherSubElements: false);
+            _model.ToJson(gatherSubElements: false);
         }
     }
 
     [EventPipeProfiler(EventPipeProfile.CpuSampling)]
     [SimpleJob]
+    [MemoryDiagnoser]
     public class TraceGltfSerialization
     {
-        [Benchmark(Description = "Create all HSS beams and serialize to glTF.")]
-        public void TraceModelCreation()
+        private Model _model;
+
+        [GlobalSetup]
+        public void GlobalSetup()
         {
             var factory = new HSSPipeProfileFactory();
             var hssProfiles = factory.AllProfiles().ToList();
-            var model = ElementCreation.DrawAllBeams(hssProfiles);
-            model.ToGlTF();
+            _model = ElementCreation.DrawAllBeams(hssProfiles);
+        }
+
+        [Benchmark(Description = "Create all HSS beams and serialize to glTF.")]
+        public void TraceModelCreation()
+        {
+            _model.ToGlTF();
         }
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Geometry/GraphicsBuffers.cs b/Elements/src/Geometry/GraphicsBuffers.cs
index 60d60bcd9..577ecbdd5 100644
--- a/Elements/src/Geometry/GraphicsBuffers.cs
+++ b/Elements/src/Geometry/GraphicsBuffers.cs
@@ -45,6 +45,8 @@ internal interface IGraphicsBuffers
     /// </summary>
     public class GraphicsBuffers : IGraphicsBuffers
     {
+        private const int _preallocationVertexCount = 1000;
+
         /// <summary>
         /// A collection of vertex positions stored as sequential bytes.
         /// </summary>
@@ -126,11 +128,11 @@ public class GraphicsBuffers : IGraphicsBuffers
         public GraphicsBuffers()
         {
             // Initialize everything
-            this.Vertices = new List<byte>();
-            this.Normals = new List<byte>();
-            this.Indices = new List<byte>();
-            this.UVs = new List<byte>();
-            this.Colors = new List<byte>();
+            this.Vertices = new List<byte>(_preallocationVertexCount * sizeof(float) * 3);
+            this.Normals = new List<byte>(_preallocationVertexCount * sizeof(float) * 3);
+            this.Indices = new List<byte>(_preallocationVertexCount * sizeof(int));
+            this.UVs = new List<byte>(_preallocationVertexCount * sizeof(float) * 2);
+            this.Colors = new List<byte>(_preallocationVertexCount * sizeof(float) * 4);
 
             this.CMin = new double[3] { double.MaxValue, double.MaxValue, double.MaxValue };
             this.CMax = new double[3] { double.MinValue, double.MinValue, double.MinValue };
@@ -201,7 +203,7 @@ public void AddVertex(double x, double y, double z, double nx, double ny, double
             this.UVMin[0] = Math.Min(this.UVMin[0], u);
             this.UVMin[1] = Math.Min(this.UVMin[1], v);
 
-            if (color.HasValue && color.Value != default(Color))
+            if (color.HasValue && color.Value != default)
             {
                 this.CMax[0] = Math.Max(this.CMax[0], color.Value.Red);
                 this.CMax[1] = Math.Max(this.CMax[1], color.Value.Green);
@@ -233,7 +235,7 @@ internal static int PreallocationSize()
             // Postion, Normal, Color, Index, UV
             var floatSize = sizeof(float);
             var intSize = sizeof(int);
-            return (floatSize * 3 + floatSize * 3 + floatSize * 4 + intSize + floatSize * 2) * 30000;
+            return (floatSize * 3 + floatSize * 3 + floatSize * 4 + intSize + floatSize * 2) * _preallocationVertexCount;
         }
     }
 }
\ No newline at end of file

From ba7ac62a0185fcad0cbc2f1959cfc759881231d8 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 13:57:46 -0700
Subject: [PATCH 130/150] Cleanup.

---
 Elements/src/Serialization/glTF/GltfExtensions.cs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Elements/src/Serialization/glTF/GltfExtensions.cs b/Elements/src/Serialization/glTF/GltfExtensions.cs
index 8541b413f..9d5de3ffc 100644
--- a/Elements/src/Serialization/glTF/GltfExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfExtensions.cs
@@ -149,7 +149,6 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
         /// <returns>A Base64 string representing the model.</returns>
         public static string ToBase64String(this Model model, bool drawEdges = false, bool mergeVertices = false)
         {
-            var tmp = Path.GetTempFileName();
             var gltf = InitializeGlTF(model, out var buffers, out _, drawEdges, mergeVertices);
             if (gltf == null)
             {

From fd348900335b8bf4f39f1c475694591be9658907 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 14:57:15 -0700
Subject: [PATCH 131/150] Change the preallocation size.

---
 Elements/src/Geometry/GraphicsBuffers.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements/src/Geometry/GraphicsBuffers.cs b/Elements/src/Geometry/GraphicsBuffers.cs
index 577ecbdd5..b83934288 100644
--- a/Elements/src/Geometry/GraphicsBuffers.cs
+++ b/Elements/src/Geometry/GraphicsBuffers.cs
@@ -45,7 +45,7 @@ internal interface IGraphicsBuffers
     /// </summary>
     public class GraphicsBuffers : IGraphicsBuffers
     {
-        private const int _preallocationVertexCount = 1000;
+        private const int _preallocationVertexCount = 200;
 
         /// <summary>
         /// A collection of vertex positions stored as sequential bytes.

From 1479c4e4b3b975bcd0f3151d1f69354c17bc7d8a Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 15:54:41 -0700
Subject: [PATCH 132/150] Don't run on change.

---
 Elements.Playground/wwwroot/js/model.js | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/Elements.Playground/wwwroot/js/model.js b/Elements.Playground/wwwroot/js/model.js
index b99318baa..2013da11d 100644
--- a/Elements.Playground/wwwroot/js/model.js
+++ b/Elements.Playground/wwwroot/js/model.js
@@ -58,18 +58,9 @@ function initializeEditor() {
         enableLiveAutocompletion: true
     });
 
-    let timer;
-    let runTimer = () => {
-        timer = setTimeout(() => {
-            invokeRun();
-        }, 2000);
-    }
-
     editor.getSession().on('change', function () {
         var code = editor.getValue();
         DotNet.invokeMethod('Elements.Playground', 'SetCodeValue', code)
-        clearTimeout(timer);
-        runTimer();
     });
 }
 

From aa25bd35990a3089bf55ec97eeed6a87225d3508 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 15:57:41 -0700
Subject: [PATCH 133/150] Remove several ToArray calls.

---
 .../src/Serialization/glTF/GltfExtensions.cs  | 33 ++++++++++---------
 1 file changed, 17 insertions(+), 16 deletions(-)

diff --git a/Elements/src/Serialization/glTF/GltfExtensions.cs b/Elements/src/Serialization/glTF/GltfExtensions.cs
index bdd89d001..bf52dd15e 100644
--- a/Elements/src/Serialization/glTF/GltfExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfExtensions.cs
@@ -128,24 +128,26 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
         {
             var sw = new Stopwatch();
             var gltf = InitializeGlTF(model, out var buffers, out _, drawEdges, mergeVertices);
-            Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing the glTF");
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing the glTF");
             sw.Restart();
 
             if (gltf == null)
             {
                 return null;
             }
-            var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers.ToArray(buffers.Count));
-            Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for merging the buffers");
+            var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers);
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for merging the buffers");
             sw.Restart();
 
             byte[] bytes;
             using (var ms = new MemoryStream())
             {
                 gltf.SaveBinaryModel(mergedBuffer, ms);
-                bytes = ms.ToArray();
+                // Avoid a copy of this array by using GetBuffer() instead
+                // of ToArray()
+                bytes = ms.GetBuffer();
             }
-            Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for saving the binary model");
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for saving the binary model");
             sw.Restart();
 
             return bytes;
@@ -162,13 +164,12 @@ public static string ToBase64String(this Model model, bool drawEdges = false, bo
             {
                 return "";
             }
-            var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers.ToArray(buffers.Count));
+            var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers);
             string b64;
             using (var ms = new MemoryStream())
-            using (var writer = new BinaryWriter(ms))
             {
-                gltf.SaveBinaryModel(mergedBuffer, writer);
-                b64 = Convert.ToBase64String(ms.ToArray());
+                gltf.SaveBinaryModel(mergedBuffer, ms);
+                b64 = Convert.ToBase64String(ms.GetBuffer());
             }
 
             return b64;
@@ -816,7 +817,7 @@ internal static void ToGlb(this Solid solid, string path)
             {
                 // Draw standard edges
                 var id = $"{100000}_curve";
-                var gb = vertices.ToArray(vertices.Count).ToGraphicsBuffers();
+                var gb = vertices.ToGraphicsBuffers();
                 AddPointsOrLines(id,
                                  buffer,
                                  bufferViews,
@@ -833,7 +834,7 @@ internal static void ToGlb(this Solid solid, string path)
             {
                 // Draw highlighted edges
                 var id = $"{100001}_curve";
-                var gb = verticesHighlighted.ToArray(verticesHighlighted.Count).ToGraphicsBuffers();
+                var gb = verticesHighlighted.ToGraphicsBuffers();
                 AddPointsOrLines(id,
                                  buffer,
                                  bufferViews,
@@ -874,7 +875,7 @@ private static bool SaveGlb(Model model, string path, out List<BaseError> errors
             }
 
             //TODO handle initializing multiple gltf buffers at once.
-            var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers.ToArray(buffers.Count));
+            var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers);
 
             gltf.SaveBinaryModel(mergedBuffer, path);
 
@@ -1008,7 +1009,7 @@ internal static Gltf InitializeGlTF(Model model,
             var nodeElementMap = new Dictionary<Guid, ProtoNode>();
             var meshTransformMap = new Dictionary<Guid, Transform>();
 
-            Debug.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing.");
+            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing.");
             sw.Restart();
 
             foreach (var e in elements)
@@ -1051,10 +1052,10 @@ internal static Gltf InitializeGlTF(Model model,
                 }
             }
 
-            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for gathering element geometry.");
+            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for gathering element geometry.");
             sw.Restart();
 
-            if (allBuffers.Sum(b => b.Count()) + buffer.Count == 0 && lights.Count == 0)
+            if (allBuffers.Sum(b => b.Length) + buffer.Count == 0 && lights.Count == 0)
             {
                 return null;
             }
@@ -1117,7 +1118,7 @@ internal static Gltf InitializeGlTF(Model model,
 
             allBuffers[0] = buffer.ToArray(buffer.Count);
 
-            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for finalizing.");
+            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for finalizing.");
             sw.Restart();
 
             return gltf;

From cb114ed8f6c1b9497651bcb33f58ff11385ad5e4 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 15:58:04 -0700
Subject: [PATCH 134/150] Add some tessellation timers.

---
 Elements/src/Geometry/Tessellation/Tessellation.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Elements/src/Geometry/Tessellation/Tessellation.cs b/Elements/src/Geometry/Tessellation/Tessellation.cs
index 2087b48db..190b217c1 100644
--- a/Elements/src/Geometry/Tessellation/Tessellation.cs
+++ b/Elements/src/Geometry/Tessellation/Tessellation.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Runtime.CompilerServices;
 using LibTessDotNet.Double;
 [assembly: InternalsVisibleTo("Hypar.Elements.Tests")]
@@ -20,6 +21,9 @@ internal static void Tessellate(IEnumerable<ITessellationTargetProvider> provide
                                         bool mergeVertices = false,
                                         Func<(Vector3, Vector3, UV, Color), (Vector3, Vector3, UV, Color)> modifyVertexAttributes = null)
         {
+            var sw = new Stopwatch();
+            sw.Start();
+
             var allVertices = new List<(Vector3 position, Vector3 normal, UV uv, Color color)>();
             foreach (var provider in providers)
             {
@@ -28,6 +32,8 @@ internal static void Tessellate(IEnumerable<ITessellationTargetProvider> provide
                     TessellatePolygon(target.GetTess(), buffers, allVertices, mergeVertices);
                 }
             }
+            Console.WriteLine($"tess: {sw.ElapsedMilliseconds}ms for tessellation.");
+            sw.Restart();
 
             foreach (var v in allVertices)
             {
@@ -41,6 +47,8 @@ internal static void Tessellate(IEnumerable<ITessellationTargetProvider> provide
                     buffers.AddVertex(v.position, v.normal, v.uv);
                 }
             }
+            Console.WriteLine($"tess: {sw.ElapsedMilliseconds}ms for packing graphics buffers.");
+            sw.Restart();
         }
 
         private static void TessellatePolygon(Tess tess,

From b9786248c816a0ea4584468f53b0da1a8b138224 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 15:58:18 -0700
Subject: [PATCH 135/150] Format multiline text correctly.

---
 Elements.Playground/Pages/Model.razor | 34 +++++++++++++--------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/Elements.Playground/Pages/Model.razor b/Elements.Playground/Pages/Model.razor
index bc9adafa5..ea8bcdc3f 100644
--- a/Elements.Playground/Pages/Model.razor
+++ b/Elements.Playground/Pages/Model.razor
@@ -11,12 +11,13 @@
 @inject IJSRuntime JSRuntime
 @inject IJSUnmarshalledRuntime JSUnmarshalledRuntime
 @inject NavigationManager MyNavigationManager
-
+@using System.Text.RegularExpressions;
 <div class="grid">
     <button class="run" disabled=@loading @onclick="Run">Run</button>
     <div id="editor">@csharp</div>
     <div id="model"></div>
-    <div class="output">@((MarkupString)Output)</div>
+    <div class="output">@((MarkupString)Regex.Replace(
+        HttpUtility.HtmlEncode(@Output), "\r?\n|\r", "<br />"))</div>
 </div>
 
 @code {
@@ -37,29 +38,29 @@ for(var i=0; i<1; i++)
 
     // The bottom chord
     var bottomChord = new Line(start, end);
-    var bottomChordBeam = new Beam(bottomChord, p, m);
+    var bottomChordBeam = new Beam(bottomChord, p, null, m);
     model.AddElement(bottomChordBeam);
 
     var topChord = new Line(start + new Vector3(0,0,5), end + new Vector3(0,0,5));
-    var topChordBeam = new Beam(topChord, p, m);
+    var topChordBeam = new Beam(topChord, p, null, m);
     model.AddElement(topChordBeam);
 
     Vector3 last = default(Vector3);
     for(var j=0.0; j<=1.0; j+=0.1)
     {
-        var pt = bottomChord.PointAt(j);
-        var top = pt + new Vector3(0,0,5);
-        var panelLine = new Line(pt, top);
-        var panelBeam = new Beam(panelLine, p, m);
-        model.AddElement(panelBeam);
+    var pt = bottomChord.PointAt(j);
+    var top = pt + new Vector3(0,0,5);
+    var panelLine = new Line(pt, top);
+    var panelBeam = new Beam(panelLine, p, null, m);
+    model.AddElement(panelBeam);
 
-        if(j > 0.0)
-        {
-            var braceLine = new Line(top, last);
-            var braceBeam = new Beam(braceLine, p, m);
-            model.AddElement(braceBeam);
-        }
-        last = pt;
+    if(j > 0.0)
+    {
+        var braceLine = new Line(top, last);
+        var braceBeam = new Beam(braceLine, p, null, m);
+        model.AddElement(braceBeam);
+    }
+    last = pt;
     }
 }
 return model;";
@@ -143,7 +144,6 @@ return model;";
         Output = writer.ToString();
         if (exception != null)
         {
-
             Output += "\r\n" + exception.ToString();
         }
         Console.SetOut(currentOut);

From 9ce1cdfaecbc63fd69079db3ef3aa591b51260f1 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 15:58:47 -0700
Subject: [PATCH 136/150] Fix this method to avoid array copying.

---
 .../glTF/GltfBufferExtensions.cs              | 22 ++++++++++++-------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/Elements/src/Serialization/glTF/GltfBufferExtensions.cs b/Elements/src/Serialization/glTF/GltfBufferExtensions.cs
index 3b349cec4..9290c374f 100644
--- a/Elements/src/Serialization/glTF/GltfBufferExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfBufferExtensions.cs
@@ -53,15 +53,16 @@ internal static List<byte[]> GetAllBufferByteArrays(this Gltf gltf, Stream gltfS
             return bufferByteArrays;
         }
 
-        internal static byte[] CombineBufferAndFixRefs(this Gltf gltf, byte[][] buffers)
+        internal static byte[] CombineBufferAndFixRefs(this Gltf gltf, List<byte[]> buffers)
         {
             if (buffers.All(b => b.Length == 0))
             {
                 return new byte[0];
             }
 
-            var fullBuffer = new List<byte>();
-            for (int i = 0; i < buffers.Length; i++)
+            var fullBuffer = new byte[buffers.Sum(b => b.Length)];
+            var index = 0;
+            for (int i = 0; i < buffers.Count; i++)
             {
                 var buff = buffers[i];
                 if (i > 0)
@@ -70,15 +71,20 @@ internal static byte[] CombineBufferAndFixRefs(this Gltf gltf, byte[][] buffers)
                     foreach (var buffView in referringViews)
                     {
                         buffView.Buffer = 0;
-                        buffView.ByteOffset = buffView.ByteOffset + fullBuffer.Count;
+                        buffView.ByteOffset += index + 1;
                     }
                 }
-                fullBuffer.AddRange(buff);
+
+                System.Buffer.BlockCopy(buff, 0, fullBuffer, index, buff.Length);
+                index += buff.Length;
             }
-            var onlyBuffer = new Buffer();
-            onlyBuffer.ByteLength = fullBuffer.Count;
+            var onlyBuffer = new Buffer
+            {
+                ByteLength = fullBuffer.Length
+            };
             gltf.Buffers = new[] { onlyBuffer };
-            return fullBuffer.ToArray(fullBuffer.Count);
+
+            return fullBuffer;
         }
     }
 }
\ No newline at end of file

From e90008ff60ec52f0be4f6eb71d52eb31b6c8908a Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 20:56:35 -0700
Subject: [PATCH 137/150] Add the hack to return items without copy.

---
 Elements/src/Serialization/glTF/GltfExtensions.cs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Elements/src/Serialization/glTF/GltfExtensions.cs b/Elements/src/Serialization/glTF/GltfExtensions.cs
index bf52dd15e..06f97aef1 100644
--- a/Elements/src/Serialization/glTF/GltfExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfExtensions.cs
@@ -17,6 +17,7 @@
 using SixLabors.ImageSharp;
 using Image = glTFLoader.Schema.Image;
 using System.Diagnostics;
+using System.Reflection;
 
 [assembly: InternalsVisibleTo("Hypar.Elements.Tests")]
 [assembly: InternalsVisibleTo("Elements.Benchmarks")]
@@ -1116,7 +1117,15 @@ internal static Gltf InitializeGlTF(Model model,
                 gltf.Meshes = meshes.ToArray(meshes.Count);
             }
 
-            allBuffers[0] = buffer.ToArray(buffer.Count);
+            // This is a hack! For web assembly, the ToArray() call creates
+            // a copy of all items in the list, and is extremely slow. We
+            // get around this by accessing the underlying list directly.
+            // https://stackoverflow.com/a/4973060
+            // allBuffers[0] = buffer.ToArray(buffer.Count);
+            buffer.TrimExcess();
+            allBuffers[0] = (byte[])typeof(List<byte>)
+                   .GetField("_items", BindingFlags.NonPublic | BindingFlags.Instance)
+                   .GetValue(buffer);
 
             Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for finalizing.");
             sw.Restart();

From 6d4c91d2d3ef07a1cfacdb200d713f28c346cf38 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 21:18:33 -0700
Subject: [PATCH 138/150] Add all indices to the graphics buffers at once.

---
 Elements/src/Geometry/GraphicsBuffers.cs      | 26 ++++++++++++++++++-
 .../src/Geometry/Tessellation/Tessellation.cs | 18 +++++++------
 2 files changed, 35 insertions(+), 9 deletions(-)

diff --git a/Elements/src/Geometry/GraphicsBuffers.cs b/Elements/src/Geometry/GraphicsBuffers.cs
index b83934288..c2d8891cc 100644
--- a/Elements/src/Geometry/GraphicsBuffers.cs
+++ b/Elements/src/Geometry/GraphicsBuffers.cs
@@ -37,6 +37,12 @@ internal interface IGraphicsBuffers
         /// </summary>
         /// <param name="index">The index to add.</param>
         void AddIndex(ushort index);
+
+        /// <summary>
+        /// Add multiple indices to the graphics buffers.
+        /// </summary>
+        /// <param name="indices">The indices to add.</param>
+        void AddIndices(IList<ushort> indices);
     }
 
     /// <summary>
@@ -45,7 +51,7 @@ internal interface IGraphicsBuffers
     /// </summary>
     public class GraphicsBuffers : IGraphicsBuffers
     {
-        private const int _preallocationVertexCount = 200;
+        private const int _preallocationVertexCount = 100;
 
         /// <summary>
         /// A collection of vertex positions stored as sequential bytes.
@@ -229,6 +235,24 @@ public void AddIndex(ushort index)
             this.IMin = Math.Min(this.IMin, index);
         }
 
+        /// <summary>
+        /// Add indices to the graphics buffers.
+        /// </summary>
+        /// <param name="indices">The indices to add.</param>
+        public void AddIndices(IList<ushort> indices)
+        {
+            var newRange = new byte[indices.Count * sizeof(ushort)];
+            for (var i = 0; i < indices.Count; i++)
+            {
+                var index = indices[i];
+                this.IMax = Math.Max(this.IMax, index);
+                this.IMin = Math.Min(this.IMin, index);
+                var bytes = BitConverter.GetBytes(index);
+                Buffer.BlockCopy(bytes, 0, newRange, i * sizeof(ushort), sizeof(ushort));
+            }
+            this.Indices.AddRange(newRange);
+        }
+
         internal static int PreallocationSize()
         {
             // Assume a fully vertex-colored mesh of the size required to contain 30k vertices.
diff --git a/Elements/src/Geometry/Tessellation/Tessellation.cs b/Elements/src/Geometry/Tessellation/Tessellation.cs
index 190b217c1..b2683d2cd 100644
--- a/Elements/src/Geometry/Tessellation/Tessellation.cs
+++ b/Elements/src/Geometry/Tessellation/Tessellation.cs
@@ -21,8 +21,8 @@ internal static void Tessellate(IEnumerable<ITessellationTargetProvider> provide
                                         bool mergeVertices = false,
                                         Func<(Vector3, Vector3, UV, Color), (Vector3, Vector3, UV, Color)> modifyVertexAttributes = null)
         {
-            var sw = new Stopwatch();
-            sw.Start();
+            // var sw = new Stopwatch();
+            // sw.Start();
 
             var allVertices = new List<(Vector3 position, Vector3 normal, UV uv, Color color)>();
             foreach (var provider in providers)
@@ -32,8 +32,8 @@ internal static void Tessellate(IEnumerable<ITessellationTargetProvider> provide
                     TessellatePolygon(target.GetTess(), buffers, allVertices, mergeVertices);
                 }
             }
-            Console.WriteLine($"tess: {sw.ElapsedMilliseconds}ms for tessellation.");
-            sw.Restart();
+            // Console.WriteLine($"tess: {sw.ElapsedMilliseconds}ms for tessellation.");
+            // sw.Restart();
 
             foreach (var v in allVertices)
             {
@@ -47,8 +47,8 @@ internal static void Tessellate(IEnumerable<ITessellationTargetProvider> provide
                     buffers.AddVertex(v.position, v.normal, v.uv);
                 }
             }
-            Console.WriteLine($"tess: {sw.ElapsedMilliseconds}ms for packing graphics buffers.");
-            sw.Restart();
+            // Console.WriteLine($"tess: {sw.ElapsedMilliseconds}ms for packing graphics buffers.");
+            // sw.Restart();
         }
 
         private static void TessellatePolygon(Tess tess,
@@ -90,11 +90,13 @@ private static void TessellatePolygon(Tess tess,
                                                              mergeVertices);
             }
 
+            var indices = new ushort[tess.Elements.Length];
             for (var k = 0; k < tess.Elements.Length; k++)
             {
-                var index = vertexIndices[tess.Elements[k]];
-                buffers.AddIndex(index);
+                indices[k] = vertexIndices[tess.Elements[k]];
             }
+
+            buffers.AddIndices(indices);
         }
 
         private static Vector3 ToElementsVector(this ContourVertex v)

From 5497a929a22b372e0e28e23b414dc5055796b999 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Sun, 17 Jul 2022 22:59:06 -0700
Subject: [PATCH 139/150] Bulk vertex addition to graphic buffer.

---
 Elements/src/Geometry/GraphicsBuffers.cs      | 78 +++++++++++++++++++
 .../src/Geometry/Tessellation/Tessellation.cs | 12 +--
 .../src/Serialization/glTF/GltfExtensions.cs  | 16 ++--
 Elements/test/CsgTests.cs                     | 10 +++
 4 files changed, 103 insertions(+), 13 deletions(-)

diff --git a/Elements/src/Geometry/GraphicsBuffers.cs b/Elements/src/Geometry/GraphicsBuffers.cs
index c2d8891cc..84ace087c 100644
--- a/Elements/src/Geometry/GraphicsBuffers.cs
+++ b/Elements/src/Geometry/GraphicsBuffers.cs
@@ -18,6 +18,11 @@ internal interface IGraphicsBuffers
         /// <param name="color">The vertex color.</param>
         void AddVertex(Vector3 position, Vector3 normal, UV uv, Color? color = null);
 
+        /// <summary>
+        /// Add vertices to the graphics buffers
+        /// </summary>
+        void AddVertices(IList<(Vector3 position, Vector3 normal, UV uv, Color color)> vertices);
+
         /// <summary>
         /// Add a vertex to the graphics buffers.
         /// </summary>
@@ -224,6 +229,78 @@ public void AddVertex(double x, double y, double z, double nx, double ny, double
             }
         }
 
+        /// <summary>
+        /// Add vertices to the graphics buffers.
+        /// </summary>
+        public void AddVertices(IList<(Vector3 position, Vector3 normal, UV uv, Color color)> vertices)
+        {
+            var vertexStep = sizeof(float) * 3;
+            var normalStep = sizeof(float) * 3;
+            var uvStep = sizeof(float) * 2;
+            var colorStep = sizeof(float) * 3;
+
+            var allPositions = new byte[vertices.Count * vertexStep];
+            var allNormals = new byte[vertices.Count * normalStep];
+            var allUvs = new byte[vertices.Count * uvStep];
+            var allColors = new byte[vertices.Count * colorStep];
+
+            var hasVertexColors = false;
+
+            for (var i = 0; i < vertices.Count; i++)
+            {
+                var (position, normal, uv, color) = vertices[i];
+
+                Buffer.BlockCopy(BitConverter.GetBytes((float)position.X), 0, allPositions, vertexStep * i, sizeof(float));
+                Buffer.BlockCopy(BitConverter.GetBytes((float)position.Y), 0, allPositions, vertexStep * i + sizeof(float), sizeof(float));
+                Buffer.BlockCopy(BitConverter.GetBytes((float)position.Z), 0, allPositions, vertexStep * i + sizeof(float) * 2, sizeof(float));
+                this.VMax[0] = Math.Max(this.VMax[0], position.X);
+                this.VMax[1] = Math.Max(this.VMax[1], position.Y);
+                this.VMax[2] = Math.Max(this.VMax[2], position.Z);
+                this.VMin[0] = Math.Min(this.VMin[0], position.X);
+                this.VMin[1] = Math.Min(this.VMin[1], position.Y);
+                this.VMin[2] = Math.Min(this.VMin[2], position.Z);
+
+                Buffer.BlockCopy(BitConverter.GetBytes((float)normal.X), 0, allNormals, normalStep * i, sizeof(float));
+                Buffer.BlockCopy(BitConverter.GetBytes((float)normal.Y), 0, allNormals, normalStep * i + sizeof(float), sizeof(float));
+                Buffer.BlockCopy(BitConverter.GetBytes((float)normal.Z), 0, allNormals, normalStep * i + sizeof(float) * 2, sizeof(float));
+                this.NMax[0] = Math.Max(this.NMax[0], normal.X);
+                this.NMax[1] = Math.Max(this.NMax[1], normal.Y);
+                this.NMax[2] = Math.Max(this.NMax[2], normal.Z);
+                this.NMin[0] = Math.Min(this.NMin[0], normal.X);
+                this.NMin[1] = Math.Min(this.NMin[1], normal.Y);
+                this.NMin[2] = Math.Min(this.NMin[2], normal.Z);
+
+                Buffer.BlockCopy(BitConverter.GetBytes((float)uv.U), 0, allUvs, uvStep * i, sizeof(float));
+                Buffer.BlockCopy(BitConverter.GetBytes((float)uv.V), 0, allUvs, uvStep * i + sizeof(float), sizeof(float));
+                this.UVMax[0] = Math.Max(this.UVMax[0], uv.U);
+                this.UVMax[1] = Math.Max(this.UVMax[1], uv.V);
+                this.UVMin[0] = Math.Min(this.UVMin[0], uv.U);
+                this.UVMin[1] = Math.Min(this.UVMin[1], uv.V);
+
+                if (color != default)
+                {
+                    hasVertexColors = true;
+                    Buffer.BlockCopy(BitConverter.GetBytes((float)color.Red), 0, allColors, colorStep * i, sizeof(float));
+                    Buffer.BlockCopy(BitConverter.GetBytes((float)color.Green), 0, allColors, colorStep * i + sizeof(float), sizeof(float));
+                    Buffer.BlockCopy(BitConverter.GetBytes((float)color.Blue), 0, allColors, colorStep * i + sizeof(float) * 2, sizeof(float));
+                    this.CMax[0] = Math.Max(this.CMax[0], color.Red);
+                    this.CMax[1] = Math.Max(this.CMax[1], color.Green);
+                    this.CMax[2] = Math.Max(this.CMax[2], color.Blue);
+                    this.CMin[0] = Math.Min(this.CMin[0], color.Red);
+                    this.CMin[1] = Math.Min(this.CMin[1], color.Green);
+                    this.CMin[2] = Math.Min(this.CMin[2], color.Blue);
+                }
+            }
+
+            this.Vertices.AddRange(allPositions);
+            this.Normals.AddRange(allNormals);
+            this.UVs.AddRange(allUvs);
+            if (hasVertexColors)
+            {
+                this.Colors.AddRange(allColors);
+            }
+        }
+
         /// <summary>
         /// Add an index to the graphics buffers.
         /// </summary>
@@ -261,5 +338,6 @@ internal static int PreallocationSize()
             var intSize = sizeof(int);
             return (floatSize * 3 + floatSize * 3 + floatSize * 4 + intSize + floatSize * 2) * _preallocationVertexCount;
         }
+
     }
 }
\ No newline at end of file
diff --git a/Elements/src/Geometry/Tessellation/Tessellation.cs b/Elements/src/Geometry/Tessellation/Tessellation.cs
index b2683d2cd..64f45014b 100644
--- a/Elements/src/Geometry/Tessellation/Tessellation.cs
+++ b/Elements/src/Geometry/Tessellation/Tessellation.cs
@@ -35,18 +35,14 @@ internal static void Tessellate(IEnumerable<ITessellationTargetProvider> provide
             // Console.WriteLine($"tess: {sw.ElapsedMilliseconds}ms for tessellation.");
             // sw.Restart();
 
-            foreach (var v in allVertices)
+            if (modifyVertexAttributes != null)
             {
-                if (modifyVertexAttributes != null)
+                for (var i = 0; i < allVertices.Count; i++)
                 {
-                    var mod = modifyVertexAttributes(v);
-                    buffers.AddVertex(mod.Item1, mod.Item2, mod.Item3, mod.Item4);
-                }
-                else
-                {
-                    buffers.AddVertex(v.position, v.normal, v.uv);
+                    allVertices[i] = modifyVertexAttributes(allVertices[i]);
                 }
             }
+            buffers.AddVertices(allVertices);
             // Console.WriteLine($"tess: {sw.ElapsedMilliseconds}ms for packing graphics buffers.");
             // sw.Restart();
         }
diff --git a/Elements/src/Serialization/glTF/GltfExtensions.cs b/Elements/src/Serialization/glTF/GltfExtensions.cs
index 06f97aef1..0d122d069 100644
--- a/Elements/src/Serialization/glTF/GltfExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfExtensions.cs
@@ -128,8 +128,10 @@ public static void ToGlTF(this Model model, string path, bool useBinarySerializa
         public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool mergeVertices = false)
         {
             var sw = new Stopwatch();
+            sw.Start();
+
             var gltf = InitializeGlTF(model, out var buffers, out _, drawEdges, mergeVertices);
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing the glTF");
+            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms total for initializing the glTF");
             sw.Restart();
 
             if (gltf == null)
@@ -137,7 +139,7 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
                 return null;
             }
             var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers);
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for merging the buffers");
+            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for merging the buffers");
             sw.Restart();
 
             byte[] bytes;
@@ -148,7 +150,7 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
                 // of ToArray()
                 bytes = ms.GetBuffer();
             }
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for saving the binary model");
+            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for saving the binary model");
             sw.Restart();
 
             return bytes;
@@ -1010,7 +1012,7 @@ internal static Gltf InitializeGlTF(Model model,
             var nodeElementMap = new Dictionary<Guid, ProtoNode>();
             var meshTransformMap = new Dictionary<Guid, Transform>();
 
-            Console.WriteLine($"{sw.ElapsedMilliseconds}ms for initializing.");
+            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for creating glTF structure.");
             sw.Restart();
 
             foreach (var e in elements)
@@ -1512,7 +1514,11 @@ private static int ProcessSolidsAsCSG(GeometricElement geometricElement,
                                       bool mergeVertices = false)
         {
             GraphicsBuffers buffers = null;
-            if (geometricElement.Representation.SkipCSGUnion)
+
+            // If we've explicitly skipped csg union or the element
+            // only has one solid operation, we can perform this micro-optimization
+            // of skipping CSG creation.
+            if (geometricElement.Representation.SkipCSGUnion || geometricElement.Representation.SolidOperations.Count == 1)
             {
                 // There's a special flag on Representation that allows you to
                 // skip CSG unions. In this case, we tessellate all solids
diff --git a/Elements/test/CsgTests.cs b/Elements/test/CsgTests.cs
index bc358acf9..3a76bcbf3 100644
--- a/Elements/test/CsgTests.cs
+++ b/Elements/test/CsgTests.cs
@@ -215,6 +215,11 @@ public void AddIndex(ushort index)
                 Indices.Add(index);
             }
 
+            public void AddIndices(IList<ushort> indices)
+            {
+                throw new NotImplementedException();
+            }
+
             public void AddVertex(Vector3 position, Vector3 normal, UV uv, Color? color = null)
             {
                 Vertices.Add((position, normal));
@@ -224,6 +229,11 @@ public void AddVertex(double x, double y, double z, double nx, double ny, double
             {
                 Vertices.Add((new Vector3(x, y, z), new Vector3(nx, ny, nz)));
             }
+
+            public void AddVertices(IList<(Vector3 position, Vector3 normal, UV uv, Color color)> vertices)
+            {
+                throw new NotImplementedException();
+            }
         }
     }
 }
\ No newline at end of file

From 9e740f5a21610dafc9b10d3d09e715f71235bf79 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Mon, 18 Jul 2022 07:32:01 -0700
Subject: [PATCH 140/150] Convert console writes to debug writes and log.

---
 Elements.Playground/Pages/Model.razor         | 57 +++++++++++--------
 .../src/Serialization/glTF/GltfExtensions.cs  | 12 ++--
 2 files changed, 38 insertions(+), 31 deletions(-)

diff --git a/Elements.Playground/Pages/Model.razor b/Elements.Playground/Pages/Model.razor
index ea8bcdc3f..9f0aa4b0e 100644
--- a/Elements.Playground/Pages/Model.razor
+++ b/Elements.Playground/Pages/Model.razor
@@ -3,10 +3,12 @@
 @using Microsoft.CodeAnalysis
 @using Microsoft.CodeAnalysis.CSharp
 @using Microsoft.CodeAnalysis.CSharp.Scripting.Hosting
+@using System.Diagnostics
 @using System.Reflection
 @using System.IO
 @using System.Threading
 @using System.Web
+@using System.Diagnostics
 
 @inject IJSRuntime JSRuntime
 @inject IJSUnmarshalledRuntime JSUnmarshalledRuntime
@@ -33,35 +35,35 @@ var p = wf.GetProfileByType(WideFlangeProfileType.W10x100);
 
 for(var i=0; i<1; i++)
 {
-    var start = new Vector3(i, 0, 0);
-    var end = new Vector3(i, length, i);
+var start = new Vector3(i, 0, 0);
+var end = new Vector3(i, length, i);
 
-    // The bottom chord
-    var bottomChord = new Line(start, end);
-    var bottomChordBeam = new Beam(bottomChord, p, null, m);
-    model.AddElement(bottomChordBeam);
+// The bottom chord
+var bottomChord = new Line(start, end);
+var bottomChordBeam = new Beam(bottomChord, p, null, m);
+model.AddElement(bottomChordBeam);
 
-    var topChord = new Line(start + new Vector3(0,0,5), end + new Vector3(0,0,5));
-    var topChordBeam = new Beam(topChord, p, null, m);
-    model.AddElement(topChordBeam);
+var topChord = new Line(start + new Vector3(0,0,5), end + new Vector3(0,0,5));
+var topChordBeam = new Beam(topChord, p, null, m);
+model.AddElement(topChordBeam);
 
-    Vector3 last = default(Vector3);
-    for(var j=0.0; j<=1.0; j+=0.1)
-    {
-    var pt = bottomChord.PointAt(j);
-    var top = pt + new Vector3(0,0,5);
-    var panelLine = new Line(pt, top);
-    var panelBeam = new Beam(panelLine, p, null, m);
-    model.AddElement(panelBeam);
+Vector3 last = default(Vector3);
+for(var j=0.0; j<=1.0; j+=0.1)
+{
+var pt = bottomChord.PointAt(j);
+var top = pt + new Vector3(0,0,5);
+var panelLine = new Line(pt, top);
+var panelBeam = new Beam(panelLine, p, null, m);
+model.AddElement(panelBeam);
 
-    if(j > 0.0)
-    {
-        var braceLine = new Line(top, last);
-        var braceBeam = new Beam(braceLine, p, null, m);
-        model.AddElement(braceBeam);
-    }
-    last = pt;
-    }
+if(j > 0.0)
+{
+var braceLine = new Line(top, last);
+var braceBeam = new Beam(braceLine, p, null, m);
+model.AddElement(braceBeam);
+}
+last = pt;
+}
 }
 return model;";
     private static string Output = "";
@@ -116,6 +118,11 @@ return model;";
         var writer = new StringWriter();
         Console.SetOut(writer);
 
+        // Redirect debug to the console.
+        Trace.Listeners.Clear();
+        Trace.Listeners.Add(
+        new TextWriterTraceListener(Console.Out));
+
         Exception exception = null;
         try
         {
diff --git a/Elements/src/Serialization/glTF/GltfExtensions.cs b/Elements/src/Serialization/glTF/GltfExtensions.cs
index 0d122d069..d1306e89f 100644
--- a/Elements/src/Serialization/glTF/GltfExtensions.cs
+++ b/Elements/src/Serialization/glTF/GltfExtensions.cs
@@ -131,7 +131,7 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
             sw.Start();
 
             var gltf = InitializeGlTF(model, out var buffers, out _, drawEdges, mergeVertices);
-            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms total for initializing the glTF");
+            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms total for initializing the glTF");
             sw.Restart();
 
             if (gltf == null)
@@ -139,7 +139,7 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
                 return null;
             }
             var mergedBuffer = gltf.CombineBufferAndFixRefs(buffers);
-            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for merging the buffers");
+            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for merging the buffers");
             sw.Restart();
 
             byte[] bytes;
@@ -150,7 +150,7 @@ public static byte[] ToGlTF(this Model model, bool drawEdges = false, bool merge
                 // of ToArray()
                 bytes = ms.GetBuffer();
             }
-            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for saving the binary model");
+            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for saving the binary model");
             sw.Restart();
 
             return bytes;
@@ -1012,7 +1012,7 @@ internal static Gltf InitializeGlTF(Model model,
             var nodeElementMap = new Dictionary<Guid, ProtoNode>();
             var meshTransformMap = new Dictionary<Guid, Transform>();
 
-            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for creating glTF structure.");
+            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for creating glTF structure.");
             sw.Restart();
 
             foreach (var e in elements)
@@ -1055,7 +1055,7 @@ internal static Gltf InitializeGlTF(Model model,
                 }
             }
 
-            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for gathering element geometry.");
+            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for gathering element geometry.");
             sw.Restart();
 
             if (allBuffers.Sum(b => b.Length) + buffer.Count == 0 && lights.Count == 0)
@@ -1129,7 +1129,7 @@ internal static Gltf InitializeGlTF(Model model,
                    .GetField("_items", BindingFlags.NonPublic | BindingFlags.Instance)
                    .GetValue(buffer);
 
-            Console.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for finalizing.");
+            Debug.WriteLine($"glTF: {sw.ElapsedMilliseconds}ms for finalizing.");
             sw.Restart();
 
             return gltf;

From a141a38f664f42c4576b415bf19fcae56a5b84e1 Mon Sep 17 00:00:00 2001
From: Ian Keough <ian@hypar.io>
Date: Tue, 23 Aug 2022 12:49:53 -0700
Subject: [PATCH 141/150] One merge tweak.

---
 Elements.Serialization.SVG/test/SvgTests.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Elements.Serialization.SVG/test/SvgTests.cs b/Elements.Serialization.SVG/test/SvgTests.cs
index 6c9347de8..2e0f2c644 100644
--- a/Elements.Serialization.SVG/test/SvgTests.cs
+++ b/Elements.Serialization.SVG/test/SvgTests.cs
@@ -23,7 +23,7 @@ public class SvgTests
         public void Plan()
         {
             var json = File.ReadAllText("../../../models/tower.json");
-            var model = Model.FromJson(json, out _);
+            var model = Model.FromJson(json);
 
             model.UpdateRepresentations();
             model.UpdateBoundsAndComputedSolids();

From 2f7e50503e69285204cbba371b99de604dc6fda6 Mon Sep 17 00:00:00 2001
From: Andrew Heumann <andrew@hypar.io>
Date: Wed, 24 Aug 2022 17:12:13 -0400
Subject: [PATCH 142/150] some code generation tweaks and a failing test

---
 Elements.CodeGeneration/src/HyparFilters.cs   |  8 ++
 .../src/Templates/Class.liquid                |  2 +-
 .../Serialization/JSON/NamedEnumConverter.cs  | 79 +++++++++++++++++++
 Elements/test/ModelTests.cs                   | 11 +++
 .../965190d2-9fda-459a-9127-9cf118bbd726.json |  1 +
 .../cb1a4e4c-8522-4a6c-937c-56170c37eed3.json |  1 +
 6 files changed, 101 insertions(+), 1 deletion(-)
 create mode 100644 Elements/src/Serialization/JSON/NamedEnumConverter.cs
 create mode 100644 Elements/test/models/ExampleModels/965190d2-9fda-459a-9127-9cf118bbd726.json
 create mode 100644 Elements/test/models/ExampleModels/cb1a4e4c-8522-4a6c-937c-56170c37eed3.json

diff --git a/Elements.CodeGeneration/src/HyparFilters.cs b/Elements.CodeGeneration/src/HyparFilters.cs
index 4b650b464..16ab9ced1 100644
--- a/Elements.CodeGeneration/src/HyparFilters.cs
+++ b/Elements.CodeGeneration/src/HyparFilters.cs
@@ -50,6 +50,14 @@ public static string Safeidentifierupper(Context context, string input, bool fir
             return input.ToSafeIdentifier();
         }
 
+        /// <summary>
+        /// Strip the nullable annotation (?) from a type.
+        /// </summary>
+        public static string Removenull(string input)
+        {
+            return input.Replace("?", "");
+        }
+
         /// <summary>
         /// Convert the string into a tabbed text block with line breaks.
         /// </summary>
diff --git a/Elements.CodeGeneration/src/Templates/Class.liquid b/Elements.CodeGeneration/src/Templates/Class.liquid
index 82fdfe95a..125cf8c86 100644
--- a/Elements.CodeGeneration/src/Templates/Class.liquid
+++ b/Elements.CodeGeneration/src/Templates/Class.liquid
@@ -50,7 +50,7 @@
     [System.ComponentModel.DataAnnotations.RegularExpression(@"{{ property.RegularExpressionValue }}")]
 {%   endif -%}
 {%   if property.IsStringEnum -%}
-    [JsonConverter(typeof(JsonStringEnumConverter))]
+    [JsonConverter(typeof(Elements.Serialization.JSON.NamedEnumConverter<{{ property.Type | removenull }}>))]
 {%   endif -%}
 {%   if property.IsDate and UseDateFormatConverter -%}
     [JsonConverter(typeof(DateFormatConverter))]
diff --git a/Elements/src/Serialization/JSON/NamedEnumConverter.cs b/Elements/src/Serialization/JSON/NamedEnumConverter.cs
new file mode 100644
index 000000000..a92d96123
--- /dev/null
+++ b/Elements/src/Serialization/JSON/NamedEnumConverter.cs
@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.Serialization;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Elements.Serialization.JSON
+{
+    /// <summary>
+    /// A drop-in replacement for `JsonStringEnumConverter` which respects `[EnumMember]` attributes.
+    /// </summary>
+    /// <typeparam name="TEnum"></typeparam>
+    public class NamedEnumConverter<TEnum> : JsonConverter<TEnum> where TEnum : struct, System.Enum
+    {
+        private readonly Dictionary<TEnum, string> _enumToString = new Dictionary<TEnum, string>();
+        private readonly Dictionary<string, TEnum> _stringToEnum = new Dictionary<string, TEnum>();
+        private readonly Dictionary<int, TEnum> _numberToEnum = new Dictionary<int, TEnum>();
+
+        /// <summary>
+        /// Create a new converter.
+        /// </summary>
+        public NamedEnumConverter()
+        {
+            var type = typeof(TEnum);
+
+            foreach (var value in Enum.GetValues(typeof(TEnum)))
+            {
+                var enumMember = type.GetMember(value.ToString())[0];
+                var attr = enumMember.GetCustomAttributes(typeof(EnumMemberAttribute), false)
+                  .Cast<EnumMemberAttribute>()
+                  .FirstOrDefault();
+
+                _stringToEnum.Add(value.ToString(), (TEnum)value);
+                var num = Convert.ToInt32(type.GetField("value__")
+                        .GetValue(value));
+                if (attr?.Value != null)
+                {
+                    _enumToString.Add((TEnum)value, attr.Value);
+                    _stringToEnum.Add(attr.Value, (TEnum)value);
+                    _numberToEnum.Add(num, (TEnum)value);
+                }
+                else
+                {
+                    _enumToString.Add((TEnum)value, value.ToString());
+                }
+            }
+        }
+
+        /// <inheritdoc/>
+        public override TEnum Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            var type = reader.TokenType;
+            if (type == JsonTokenType.String)
+            {
+                var stringValue = reader.GetString();
+                if (_stringToEnum.TryGetValue(stringValue, out var enumValue))
+                {
+                    return enumValue;
+                }
+            }
+            else if (type == JsonTokenType.Number)
+            {
+                var numValue = reader.GetInt32();
+                _numberToEnum.TryGetValue(numValue, out var enumValue);
+                return enumValue;
+            }
+
+            return default;
+        }
+
+        /// <inheritdoc/>
+        public override void Write(Utf8JsonWriter writer, TEnum value, JsonSerializerOptions options)
+        {
+            writer.WriteStringValue(_enumToString[value]);
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index aa960566a..15151e7fd 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -384,5 +384,16 @@ private Model QuadPanelModel()
             model.AddElement(panel);
             return model;
         }
+
+        [Fact]
+        public void ReadsExampleModels()
+        {
+            var models = Directory.EnumerateFiles("../../../models/ExampleModels", "*.json");
+            foreach (var modelPath in models)
+            {
+                var json = File.ReadAllText(modelPath);
+                var model = Model.FromJson(json);
+            }
+        }
     }
 }
diff --git a/Elements/test/models/ExampleModels/965190d2-9fda-459a-9127-9cf118bbd726.json b/Elements/test/models/ExampleModels/965190d2-9fda-459a-9127-9cf118bbd726.json
new file mode 100644
index 000000000..eb66e80dd
--- /dev/null
+++ b/Elements/test/models/ExampleModels/965190d2-9fda-459a-9127-9cf118bbd726.json
@@ -0,0 +1 @@
+{"Transform":{"Matrix":{"Components":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},"Elements":{"4bc59533-24e9-4a9a-9d52-94b9a3b3bce7":{"discriminator":"Elements.ElementProxy<Elements.Site>","elementId":"08d4077b-f755-4067-9175-2eba595a91e1","dependency":"Site","Id":"4bc59533-24e9-4a9a-9d52-94b9a3b3bce7","Name":null,"associatedIdentities":{"Site Constraints":[{"id":"492d46b9-9822-4308-8e9e-b12038923a63","identity":{"Perimeter":{"discriminator":"Elements.Geometry.Polygon","Vertices":[{"X":-14.316353138132353,"Y":-88.59469246558933,"Z":0.0},{"X":73.63994196619683,"Y":-42.39295960994068,"Z":0.0},{"X":48.46512666893233,"Y":5.5334567087160025,"Z":0.0},{"X":-39.491168435396844,"Y":-40.66827614693267,"Z":0.0}]},"Add Id":"261dc848-475b-4030-86ba-b6b6c95318b4"}}]},"associatedValues":{"Site Constraints":{"Floor Area Ratio":{},"Building Height":{"Maximum":54.863998244352054},"Lot Coverage":{}}}},"2abe5b82-bc1a-4a6e-9586-7d5366fe423a":{"discriminator":"Elements.SiteConstraintInfo","MinFAR":null,"MaxFAR":null,"MinHeight":null,"MaxHeight":54.863998244352054,"MinLotCoverage":null,"MaxLotCoverage":null,"SiteAddId":"261dc848-475b-4030-86ba-b6b6c95318b4","Site":"08d4077b-f755-4067-9175-2eba595a91e1","Id":"2abe5b82-bc1a-4a6e-9586-7d5366fe423a","Name":null},"ff346f61-ab71-49db-a4f1-d09e7fd89a3a":{"discriminator":"Elements.Material","Color":{"Red":0.5,"Green":0.5,"Blue":0.5,"Alpha":1.0},"SpecularFactor":0.1,"GlossinessFactor":0.1,"Unlit":false,"DoubleSided":false,"RepeatTexture":true,"InterpolateTexture":true,"EmissiveFactor":0.0,"Draw In Front":false,"EdgeDisplaySettings":{"LineWidth":2.0,"WidthMode":0,"DashMode":1,"DashSize":20.0,"GapSize":10.0},"Id":"ff346f61-ab71-49db-a4f1-d09e7fd89a3a","Name":null},"fe30a1cb-ceb0-4025-ac37-7865be11d007":{"discriminator":"Elements.Setback","EndingHeight":54.863998244352054,"Add Id":"🤡261dc848-475b-4030-86ba-b6b6c95318b41","Baseline":{"discriminator":"Elements.Geometry.Line","Start":{"X":31.19086372901,"Y":-73.58612101459846,"Z":2.9753977059954195E-14},"End":{"X":73.63994196619683,"Y":-42.39295960994068,"Z":0.0}},"Distance":0.0,"Starting Height":0.0,"Site":"08d4077b-f755-4067-9175-2eba595a91e1","Angle":0.0,"Transform":{"Matrix":{"Components":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},"Material":"ff346f61-ab71-49db-a4f1-d09e7fd89a3a","Representation":null,"IsElementDefinition":false,"Id":"fe30a1cb-ceb0-4025-ac37-7865be11d007","Name":null},"8af8f63b-17c7-479e-8098-3eacac3b1357":{"discriminator":"Elements.Setback","EndingHeight":54.863998244352054,"Add Id":"🤡261dc848-475b-4030-86ba-b6b6c95318b42","Baseline":{"discriminator":"Elements.Geometry.Line","Start":{"X":73.63994196619683,"Y":-42.39295960994068,"Z":0.0},"End":{"X":48.46512666893233,"Y":5.5334567087160025,"Z":0.0}},"Distance":0.0,"Starting Height":0.0,"Site":"08d4077b-f755-4067-9175-2eba595a91e1","Angle":0.0,"Transform":{"Matrix":{"Components":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},"Material":"ff346f61-ab71-49db-a4f1-d09e7fd89a3a","Representation":null,"IsElementDefinition":false,"Id":"8af8f63b-17c7-479e-8098-3eacac3b1357","Name":null},"0db3f3ca-6f2c-4e2e-b46a-1bde5cf65f92":{"discriminator":"Elements.Setback","EndingHeight":54.863998244352054,"Add Id":"🤡261dc848-475b-4030-86ba-b6b6c95318b44","Baseline":{"discriminator":"Elements.Geometry.Line","Start":{"X":-39.491168435396844,"Y":-40.66827614693267,"Z":0.0},"End":{"X":-14.316353138132104,"Y":-88.59469246558979,"Z":3.9968028886505635E-15}},"Distance":0.0,"Starting Height":0.0,"Site":"08d4077b-f755-4067-9175-2eba595a91e1","Angle":0.0,"Transform":{"Matrix":{"Components":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},"Material":"ff346f61-ab71-49db-a4f1-d09e7fd89a3a","Representation":null,"IsElementDefinition":false,"Id":"0db3f3ca-6f2c-4e2e-b46a-1bde5cf65f92","Name":null},"10c06ddb-2389-4f9b-b155-7887f5dc2cf8":{"discriminator":"Elements.Setback","EndingHeight":54.863998244352054,"Add Id":"🤡261dc848-475b-4030-86ba-b6b6c95318b40","Baseline":{"discriminator":"Elements.Geometry.Line","Start":{"X":-14.31635,"Y":-88.59469,"Z":0.0},"End":{"X":31.19086372901,"Y":-73.58612101459846,"Z":0.0}},"Distance":6.095999804928006,"Starting Height":0.0,"Site":"08d4077b-f755-4067-9175-2eba595a91e1","Angle":0.0,"Transform":{"Matrix":{"Components":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},"Material":"ff346f61-ab71-49db-a4f1-d09e7fd89a3a","Representation":null,"IsElementDefinition":false,"Id":"10c06ddb-2389-4f9b-b155-7887f5dc2cf8","Name":null,"associatedIdentities":{"Setbacks":[{"id":"19dcd2c9-cc5b-4f50-9b69-1fdd24626148","identity":{"Add Id":"🤡261dc848-475b-4030-86ba-b6b6c95318b40"}}]}},"3f058eb5-afbd-44d3-a24b-37f8e2fc42be":{"discriminator":"Elements.Setback","EndingHeight":54.863998244352054,"Add Id":"🤡261dc848-475b-4030-86ba-b6b6c95318b43","Baseline":{"discriminator":"Elements.Geometry.Line","Start":{"X":-39.491168435396844,"Y":-40.66827614693267,"Z":0.0},"End":{"X":-14.316353138132353,"Y":-88.59469246558933,"Z":0.0}},"Distance":9.143999707392009,"Starting Height":15.239999512320015,"Site":"08d4077b-f755-4067-9175-2eba595a91e1","Angle":0.0,"Transform":{"Matrix":{"Components":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},"Material":"ff346f61-ab71-49db-a4f1-d09e7fd89a3a","Representation":null,"IsElementDefinition":false,"Id":"3f058eb5-afbd-44d3-a24b-37f8e2fc42be","Name":null,"associatedIdentities":{"Setbacks":[{"id":"bd083201-1e1a-4ff0-96fe-ba4eec138904","identity":{"Add Id":"🤡261dc848-475b-4030-86ba-b6b6c95318b43"}}]}}}}
\ No newline at end of file
diff --git a/Elements/test/models/ExampleModels/cb1a4e4c-8522-4a6c-937c-56170c37eed3.json b/Elements/test/models/ExampleModels/cb1a4e4c-8522-4a6c-937c-56170c37eed3.json
new file mode 100644
index 000000000..2c8c19429
--- /dev/null
+++ b/Elements/test/models/ExampleModels/cb1a4e4c-8522-4a6c-937c-56170c37eed3.json
@@ -0,0 +1 @@
+{"Transform":{"Matrix":{"Components":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},"Elements":{"42ea47e8-c66a-4eaf-adff-f12c3e992684":{"discriminator":"Elements.Material","Color":{"Red":0.49411764705882355,"Green":0.803921568627451,"Blue":0.6235294117647059,"Alpha":1.0},"SpecularFactor":0.0,"GlossinessFactor":0.0,"Unlit":false,"DoubleSided":false,"RepeatTexture":true,"InterpolateTexture":true,"EmissiveFactor":1.0,"Draw In Front":false,"EdgeDisplaySettings":null,"Id":"42ea47e8-c66a-4eaf-adff-f12c3e992684","Name":"site"},"08d4077b-f755-4067-9175-2eba595a91e1":{"discriminator":"Elements.Site","Add Id":"261dc848-475b-4030-86ba-b6b6c95318b4","Perimeter":{"discriminator":"Elements.Geometry.Polygon","Vertices":[{"X":-14.316353138132104,"Y":-88.59469246558979,"Z":3.9968028886505635E-15},{"X":31.19086372901,"Y":-73.58612101459846,"Z":2.9753977059954195E-14},{"X":73.63994196619683,"Y":-42.39295960994068,"Z":0.0},{"X":48.46512666893233,"Y":5.5334567087160025,"Z":0.0},{"X":-39.491168435396844,"Y":-40.66827614693267,"Z":0.0}]},"Area":5769.757076602235,"Transform":{"Matrix":{"Components":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},"Material":"42ea47e8-c66a-4eaf-adff-f12c3e992684","Representation":{"SolidOperations":[{"discriminator":"Elements.Geometry.Solids.Lamina","Perimeter":{"discriminator":"Elements.Geometry.Polygon","Vertices":[{"X":-14.316353138132104,"Y":-88.59469246558979,"Z":0.0010000000000039968},{"X":31.19086372901,"Y":-73.58612101459846,"Z":0.001000000000029754},{"X":73.63994196619683,"Y":-42.39295960994068,"Z":0.001},{"X":48.46512666893233,"Y":5.5334567087160025,"Z":0.001},{"X":-39.491168435396844,"Y":-40.66827614693267,"Z":0.001}]},"Voids":[],"LocalTransform":null,"IsVoid":false}]},"IsElementDefinition":false,"Id":"08d4077b-f755-4067-9175-2eba595a91e1","Name":null,"associatedIdentities":{"Site Addition":[{"id":"261dc848-475b-4030-86ba-b6b6c95318b4","identity":null}],"Site":[{"id":"a4678d49-a71a-4073-a67b-2acf6f097a0c","identity":{"Add Id":"261dc848-475b-4030-86ba-b6b6c95318b4"}}]}}}}
\ No newline at end of file

From 6256fbef984c5a151f2f489c2716c5c56d2a2fa9 Mon Sep 17 00:00:00 2001
From: Andrew Heumann <andrew@hypar.io>
Date: Sat, 27 Aug 2022 15:42:08 -0400
Subject: [PATCH 143/150] bug fixes for codegen and enums

---
 .../src/Templates/Class.liquid                |  5 +----
 Elements/src/Elements.csproj                  | 21 ++++++++++---------
 .../Serialization/JSON/ElementConverter.cs    |  6 +++---
 3 files changed, 15 insertions(+), 17 deletions(-)

diff --git a/Elements.CodeGeneration/src/Templates/Class.liquid b/Elements.CodeGeneration/src/Templates/Class.liquid
index 125cf8c86..939743517 100644
--- a/Elements.CodeGeneration/src/Templates/Class.liquid
+++ b/Elements.CodeGeneration/src/Templates/Class.liquid
@@ -1,9 +1,6 @@
 {% if HasDescription -%}
 /// <summary>{{ Description | csharpdocs }}</summary>
 {% endif -%}
-{% if HasDiscriminator -%}
-[JsonConverter(typeof(ElementConverter<{{ClassName}}>))]
-{% endif -%}
 [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "{{ ToolchainVersion }}")]
 {% if InheritsExceptionSchema -%}
 [JsonObjectAttribute]
@@ -50,7 +47,7 @@
     [System.ComponentModel.DataAnnotations.RegularExpression(@"{{ property.RegularExpressionValue }}")]
 {%   endif -%}
 {%   if property.IsStringEnum -%}
-    [JsonConverter(typeof(Elements.Serialization.JSON.NamedEnumConverter<{{ property.Type | removenull }}>))]
+    [JsonConverter(typeof(JsonStringEnumMemberConverter))]
 {%   endif -%}
 {%   if property.IsDate and UseDateFormatConverter -%}
     [JsonConverter(typeof(DateFormatConverter))]
diff --git a/Elements/src/Elements.csproj b/Elements/src/Elements.csproj
index 483006d93..553817581 100644
--- a/Elements/src/Elements.csproj
+++ b/Elements/src/Elements.csproj
@@ -14,15 +14,16 @@
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="glTF2Loader" Version="1.1.3-alpha" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="3.11.0" />
-    <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
-    <PackageReference Include="SixLabors.Fonts" Version="1.0.0-beta15" />
-    <PackageReference Include="SixLabors.ImageSharp" Version="1.0.3" />
-    <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta13" />
-    <PackageReference Include="System.ComponentModel.Annotations" Version="4.6.0" />
-    <PackageReference Include="System.Text.Json" Version="6.0.2" />
-    <PackageReference Include="Unofficial.LibTessDotNet" Version="2.0.0" />
+    <PackageReference Include="glTF2Loader" Version="1.1.3-alpha"/>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="3.11.0"/>
+    <PackageReference Include="Microsoft.CSharp" Version="4.7.0"/>
+    <PackageReference Include="SixLabors.Fonts" Version="1.0.0-beta15"/>
+    <PackageReference Include="SixLabors.ImageSharp" Version="1.0.3"/>
+    <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta13"/>
+    <PackageReference Include="System.ComponentModel.Annotations" Version="4.6.0"/>
+    <PackageReference Include="System.Text.Json" Version="6.0.2"/>
+    <PackageReference Include="Unofficial.LibTessDotNet" Version="2.0.0"/>
+    <PackageReference Include="Macross.Json.Extensions" Version="3.0.0"/>
   </ItemGroup>
   <ItemGroup>
     <Content Include="Textures\**\*.*">
@@ -57,6 +58,6 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
-    <None Include="extension.dib" Pack="true" PackagePath="interactive-extensions/dotnet" />
+    <None Include="extension.dib" Pack="true" PackagePath="interactive-extensions/dotnet"/>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index 3268da589..c2abccb5c 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -111,7 +111,8 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                             string elementType = discriminator.Substring(start, end - start);
                             if (!resolver.TypeCache.TryGetValue(elementType, out var genericType))
                             {
-                                throw new Exception($"The type {elementType} could not be found in the type cache. It can not be used as a generic type argument.");
+                                // This may occur if the object is a proxy of a type we don't have the class for. Fallback to `Element`.
+                                genericType = typeof(Element);
                             }
                             var typeArgs = new[] { genericType };
                             var genericElementType = derivedType.MakeGenericType(typeArgs);
@@ -140,7 +141,7 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                             DeserializeElementProperties(derivedType, root, resolver, resolver.DocumentElements);
 
                             // Use this for debugging. If you can't figure out
-                            // where serialization is going bezerk, it'll print
+                            // where serialization is going berserk, it'll print
                             // the element ids as they serialize. This is useful
                             // when things like stack overflows happen, to identify
                             // the last element entered before the overflow. Then you 
@@ -151,7 +152,6 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                             //     var strId = id.GetString();
                             //     Console.WriteLine($"Deserializing element {strId}");
                             // }
-
                             T e = (T)root.Deserialize(derivedType, options);
                             if (typeof(Element).IsAssignableFrom(derivedType))
                             {

From b4c5c9c695964bc36d6e5cdb27fa3a5d388bb052 Mon Sep 17 00:00:00 2001
From: Andrew Heumann <andrew@hypar.io>
Date: Mon, 29 Aug 2022 09:08:49 -0400
Subject: [PATCH 144/150] remove namedEnumConverter

---
 .../Serialization/JSON/NamedEnumConverter.cs  | 79 -------------------
 1 file changed, 79 deletions(-)
 delete mode 100644 Elements/src/Serialization/JSON/NamedEnumConverter.cs

diff --git a/Elements/src/Serialization/JSON/NamedEnumConverter.cs b/Elements/src/Serialization/JSON/NamedEnumConverter.cs
deleted file mode 100644
index a92d96123..000000000
--- a/Elements/src/Serialization/JSON/NamedEnumConverter.cs
+++ /dev/null
@@ -1,79 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Runtime.Serialization;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace Elements.Serialization.JSON
-{
-    /// <summary>
-    /// A drop-in replacement for `JsonStringEnumConverter` which respects `[EnumMember]` attributes.
-    /// </summary>
-    /// <typeparam name="TEnum"></typeparam>
-    public class NamedEnumConverter<TEnum> : JsonConverter<TEnum> where TEnum : struct, System.Enum
-    {
-        private readonly Dictionary<TEnum, string> _enumToString = new Dictionary<TEnum, string>();
-        private readonly Dictionary<string, TEnum> _stringToEnum = new Dictionary<string, TEnum>();
-        private readonly Dictionary<int, TEnum> _numberToEnum = new Dictionary<int, TEnum>();
-
-        /// <summary>
-        /// Create a new converter.
-        /// </summary>
-        public NamedEnumConverter()
-        {
-            var type = typeof(TEnum);
-
-            foreach (var value in Enum.GetValues(typeof(TEnum)))
-            {
-                var enumMember = type.GetMember(value.ToString())[0];
-                var attr = enumMember.GetCustomAttributes(typeof(EnumMemberAttribute), false)
-                  .Cast<EnumMemberAttribute>()
-                  .FirstOrDefault();
-
-                _stringToEnum.Add(value.ToString(), (TEnum)value);
-                var num = Convert.ToInt32(type.GetField("value__")
-                        .GetValue(value));
-                if (attr?.Value != null)
-                {
-                    _enumToString.Add((TEnum)value, attr.Value);
-                    _stringToEnum.Add(attr.Value, (TEnum)value);
-                    _numberToEnum.Add(num, (TEnum)value);
-                }
-                else
-                {
-                    _enumToString.Add((TEnum)value, value.ToString());
-                }
-            }
-        }
-
-        /// <inheritdoc/>
-        public override TEnum Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-        {
-            var type = reader.TokenType;
-            if (type == JsonTokenType.String)
-            {
-                var stringValue = reader.GetString();
-                if (_stringToEnum.TryGetValue(stringValue, out var enumValue))
-                {
-                    return enumValue;
-                }
-            }
-            else if (type == JsonTokenType.Number)
-            {
-                var numValue = reader.GetInt32();
-                _numberToEnum.TryGetValue(numValue, out var enumValue);
-                return enumValue;
-            }
-
-            return default;
-        }
-
-        /// <inheritdoc/>
-        public override void Write(Utf8JsonWriter writer, TEnum value, JsonSerializerOptions options)
-        {
-            writer.WriteStringValue(_enumToString[value]);
-        }
-    }
-
-}
\ No newline at end of file

From 0ec06b28e3deca34e0a1d4b42a25b08ea83a1c0b Mon Sep 17 00:00:00 2001
From: Andrew Heumann <andrew@hypar.io>
Date: Mon, 29 Aug 2022 10:05:01 -0400
Subject: [PATCH 145/150] remove unused filter

---
 Elements.CodeGeneration/src/HyparFilters.cs | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/Elements.CodeGeneration/src/HyparFilters.cs b/Elements.CodeGeneration/src/HyparFilters.cs
index 16ab9ced1..4b650b464 100644
--- a/Elements.CodeGeneration/src/HyparFilters.cs
+++ b/Elements.CodeGeneration/src/HyparFilters.cs
@@ -50,14 +50,6 @@ public static string Safeidentifierupper(Context context, string input, bool fir
             return input.ToSafeIdentifier();
         }
 
-        /// <summary>
-        /// Strip the nullable annotation (?) from a type.
-        /// </summary>
-        public static string Removenull(string input)
-        {
-            return input.Replace("?", "");
-        }
-
         /// <summary>
         /// Convert the string into a tabbed text block with line breaks.
         /// </summary>

From 71197c33cec1c5d9974bb6dd0493ca29da0d6511 Mon Sep 17 00:00:00 2001
From: Anthonie Kramer <anthoniekramer@gmail.com>
Date: Wed, 6 Dec 2023 09:10:53 -0800
Subject: [PATCH 146/150] build with no errors

---
 Elements.MEP/src/Flow/Tree.Schema.cs          |   2 +-
 Elements.MEP/src/Generated/Assembly.g.cs      |  18 +--
 Elements.MEP/src/Generated/ComponentBase.g.cs |  14 +-
 Elements.MEP/src/Generated/Connection.g.cs    |  20 +--
 Elements.MEP/src/Generated/Coupler.g.cs       |  22 +--
 Elements.MEP/src/Generated/Cross.g.cs         |  22 +--
 .../DrainableRoofCharacteristics.g.cs         |  36 ++---
 .../src/Generated/DrainableRoofSection.g.cs   |  24 ++--
 .../DrainableRoofSectionConfiguration.g.cs    |  20 +--
 Elements.MEP/src/Generated/Elbow.g.cs         |  24 ++--
 Elements.MEP/src/Generated/EquipmentBase.g.cs |  14 +-
 Elements.MEP/src/Generated/Fitting.g.cs       |  14 +-
 .../src/Generated/FittingLocator.g.cs         |  20 +--
 Elements.MEP/src/Generated/FittingTree.g.cs   |  18 +--
 Elements.MEP/src/Generated/Flow.g.cs          |  22 +--
 Elements.MEP/src/Generated/Leaf.g.cs          |  16 +--
 Elements.MEP/src/Generated/Manifold.g.cs      |  18 +--
 Elements.MEP/src/Generated/Node.g.cs          |  14 +-
 Elements.MEP/src/Generated/Port.g.cs          |  28 ++--
 .../src/Generated/PortConnectionType.g.cs     |  18 +--
 .../src/Generated/PortDimensions.g.cs         |  20 +--
 .../Generated/PressureCalculationBase.g.cs    |  16 +--
 .../Generated/PressureCalculationCoupler.g.cs |  40 +++---
 .../Generated/PressureCalculationCross.g.cs   |  94 ++++++-------
 .../Generated/PressureCalculationElbow.g.cs   |  44 +++---
 .../PressureCalculationManifold.g.cs          |  30 ++--
 .../Generated/PressureCalculationReducer.g.cs |  48 +++----
 .../Generated/PressureCalculationSegment.g.cs |  40 +++---
 .../PressureCalculationTerminal.g.cs          |  38 +++---
 .../src/Generated/PressureCalculationWye.g.cs |  72 +++++-----
 Elements.MEP/src/Generated/RainLoad.g.cs      |  16 +--
 Elements.MEP/src/Generated/Reducer.g.cs       |  18 +--
 Elements.MEP/src/Generated/RoofDrain.g.cs     |  26 ++--
 Elements.MEP/src/Generated/Section.g.cs       |  26 ++--
 .../src/Generated/StraightSegment.g.cs        |  24 ++--
 Elements.MEP/src/Generated/Terminal.g.cs      |  20 +--
 Elements.MEP/src/Generated/Trunk.g.cs         |  16 +--
 Elements.MEP/src/Generated/Wye.g.cs           |  22 +--
 Elements.MEP/src/MergeGroup.cs                |   1 -
 Elements.MEP/test/SerializationTests.cs       |   4 +-
 Elements/src/CoreModels/SharedObject.cs       |   3 +-
 Elements/src/Element.cs                       |   2 +-
 Elements/src/Geometry/Profile.cs              |   4 +-
 Elements/src/Model.cs                         | 129 +++++++++---------
 .../src/Serialization/JSON/SolidConverter.cs  |   4 +-
 .../src/Spatial/AdaptiveGrid/AdaptiveGrid.cs  |   6 +-
 Elements/src/StructuralFraming.cs             |   5 -
 Elements/test/ModelTests.cs                   |  16 +--
 Elements/test/PolygonTests.cs                 |   6 +-
 Elements/test/SolidTests.cs                   |   6 +-
 50 files changed, 588 insertions(+), 592 deletions(-)

diff --git a/Elements.MEP/src/Flow/Tree.Schema.cs b/Elements.MEP/src/Flow/Tree.Schema.cs
index c1420ea92..8f4f7d4e7 100644
--- a/Elements.MEP/src/Flow/Tree.Schema.cs
+++ b/Elements.MEP/src/Flow/Tree.Schema.cs
@@ -20,7 +20,7 @@
 namespace Elements.Flow
 {
     /// <summary>A many to one tree network.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v12.0.0.0)")]
     public partial class Tree : GeometricElement
     {
diff --git a/Elements.MEP/src/Generated/Assembly.g.cs b/Elements.MEP/src/Generated/Assembly.g.cs
index 6ebb2d32b..1f2b11228 100644
--- a/Elements.MEP/src/Generated/Assembly.g.cs
+++ b/Elements.MEP/src/Generated/Assembly.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A connectable collection of pipes and connections</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Assembly : Fitting
     {
@@ -33,25 +33,25 @@ public Assembly(IList<Port> @externalPorts, IList<Fitting> @internalFittings, IL
             this.ExternalPorts = @externalPorts;
             this.InternalFittings = @internalFittings;
             this.InternalSegments = @internalSegments;
-            }
-        
+        }
+
         // Empty constructor
         public Assembly()
             : base()
         {
         }
-    
+
         /// <summary>The external facing Ports</summary>
         [JsonProperty("ExternalPorts", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<Port> ExternalPorts { get; set; }
-    
+
         [JsonProperty("InternalFittings", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<Fitting> InternalFittings { get; set; }
-    
+
         /// <summary>The internal segments in the assembly.</summary>
         [JsonProperty("InternalSegments", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<StraightSegment> InternalSegments { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/ComponentBase.g.cs b/Elements.MEP/src/Generated/ComponentBase.g.cs
index b93d70add..9b21206fb 100644
--- a/Elements.MEP/src/Generated/ComponentBase.g.cs
+++ b/Elements.MEP/src/Generated/ComponentBase.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>The base class for FittingTree components</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class ComponentBase : GeometricElement
     {
@@ -31,17 +31,17 @@ public ComponentBase(FittingLocator @componentLocator, Transform @transform = nu
             : base(transform, material, representation, isElementDefinition, id, name)
         {
             this.ComponentLocator = @componentLocator;
-            }
-        
+        }
+
         // Empty constructor
         public ComponentBase()
             : base()
         {
         }
-    
+
         [JsonProperty("ComponentLocator", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public FittingLocator ComponentLocator { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Connection.g.cs b/Elements.MEP/src/Generated/Connection.g.cs
index 5e89b462a..ce123b62d 100644
--- a/Elements.MEP/src/Generated/Connection.g.cs
+++ b/Elements.MEP/src/Generated/Connection.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Flow
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>The origin of a project.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Connection : GeometricElement
     {
@@ -34,26 +34,26 @@ public Connection(Node @start, Node @end, double @diameter, double @flow, Transf
             this.End = @end;
             this.Diameter = @diameter;
             this.Flow = @flow;
-            }
-        
+        }
+
         // Empty constructor
         public Connection()
             : base()
         {
         }
-    
+
         [JsonProperty("Start", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Node Start { get; set; }
-    
+
         [JsonProperty("End", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Node End { get; set; }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Coupler.g.cs b/Elements.MEP/src/Generated/Coupler.g.cs
index 9e45f5569..fbfc9a4d5 100644
--- a/Elements.MEP/src/Generated/Coupler.g.cs
+++ b/Elements.MEP/src/Generated/Coupler.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A Fitting that does not change a pipe size.  This may not be used ...?</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Coupler : Fitting
     {
@@ -35,32 +35,32 @@ public Coupler(Port @start, Port @end, double @diameter, PressureCalculationCoup
             this.Diameter = @diameter;
             this.PressureCalculations = @pressureCalculations;
             this.CouplerType = @couplerType;
-            }
-        
+        }
+
         // Empty constructor
         public Coupler()
             : base()
         {
         }
-    
+
         /// <summary>The Start of this coupler</summary>
         [JsonProperty("Start", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port Start { get; set; }
-    
+
         /// <summary>The End of this coupler.</summary>
         [JsonProperty("End", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port End { get; set; }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         [JsonProperty("Pressure Calculations", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PressureCalculationCoupler PressureCalculations { get; set; }
-    
+
         /// <summary>A  string that can be used to tag what kind of coupler this is.</summary>
         [JsonProperty("CouplerType", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public string CouplerType { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Cross.g.cs b/Elements.MEP/src/Generated/Cross.g.cs
index d0f564ae1..6f105f62d 100644
--- a/Elements.MEP/src/Generated/Cross.g.cs
+++ b/Elements.MEP/src/Generated/Cross.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A cross fitting where three flows join to one.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Cross : Fitting
     {
@@ -35,34 +35,34 @@ public Cross(Port @trunk, Port @branchA, Port @branchB, Port @branchC, PressureC
             this.BranchB = @branchB;
             this.BranchC = @branchC;
             this.PressureCalculations = @pressureCalculations;
-            }
-        
+        }
+
         // Empty constructor
         public Cross()
             : base()
         {
         }
-    
+
         /// <summary>The port at the trunk.</summary>
         [JsonProperty("Trunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port Trunk { get; set; }
-    
+
         /// <summary>First of three branch ports</summary>
         [JsonProperty("BranchA", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port BranchA { get; set; }
-    
+
         /// <summary>Second of three branch ports</summary>
         [JsonProperty("BranchB", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port BranchB { get; set; }
-    
+
         /// <summary>Third of three branch ports</summary>
         [JsonProperty("BranchC", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port BranchC { get; set; }
-    
+
         /// <summary>The pressure calculation data for this fitting.</summary>
         [JsonProperty("Pressure Calculations", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PressureCalculationCross PressureCalculations { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/DrainableRoofCharacteristics.g.cs b/Elements.MEP/src/Generated/DrainableRoofCharacteristics.g.cs
index 904245e84..061f5baad 100644
--- a/Elements.MEP/src/Generated/DrainableRoofCharacteristics.g.cs
+++ b/Elements.MEP/src/Generated/DrainableRoofCharacteristics.g.cs
@@ -19,9 +19,9 @@
 
 namespace Elements
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
+
 
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class DrainableRoofCharacteristics : Element
     {
@@ -41,57 +41,57 @@ public DrainableRoofCharacteristics(DrainableRoofCharacteristicsBaseRoofType? @b
             this.GreenRoofSubstrateDiameter = @greenRoofSubstrateDiameter;
             this.ReductionFactor = @reductionFactor;
             this.RoofSection = @roofSection;
-            }
-        
+        }
+
         // Empty constructor
         public DrainableRoofCharacteristics()
             : base()
         {
         }
-    
+
         [JsonProperty("Base Roof Type", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
         public DrainableRoofCharacteristicsBaseRoofType? BaseRoofType { get; set; } = Elements.DrainableRoofCharacteristicsBaseRoofType.Concrete;
-    
+
         [JsonProperty("Flat Roof or Gutter", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
         public DrainableRoofCharacteristicsFlatRoofOrGutter? FlatRoofOrGutter { get; set; } = Elements.DrainableRoofCharacteristicsFlatRoofOrGutter.Flat_Roof;
-    
+
         [JsonProperty("Roof membrane", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
         public DrainableRoofCharacteristicsRoofMembrane? RoofMembrane { get; set; } = Elements.DrainableRoofCharacteristicsRoofMembrane.PVC;
-    
+
         [JsonProperty("Heated", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public bool Heated { get; set; }
-    
+
         [JsonProperty("Angle", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Angle { get; set; } = 0D;
-    
+
         [JsonProperty("Maximum Water Load", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double MaximumWaterLoad { get; set; } = 0D;
-    
+
         [JsonProperty("Gravel Ballast Load", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
         public DrainableRoofCharacteristicsGravelBallastLoad GravelBallastLoad { get; set; }
-    
+
         [JsonProperty("Green Roof", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
         public DrainableRoofCharacteristicsGreenRoof GreenRoof { get; set; }
-    
+
         [JsonProperty("Green Roof Thickness", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double GreenRoofThickness { get; set; }
-    
+
         [JsonProperty("Green Roof Substrate Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         [System.ComponentModel.DataAnnotations.Range(4D, 50D)]
         public double GreenRoofSubstrateDiameter { get; set; } = 5D;
-    
+
         [JsonProperty("Reduction Factor", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ReductionFactor { get; set; }
-    
+
         /// <summary>The ID of the associated DrainableRoofSection</summary>
         [JsonProperty("Roof Section", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public string RoofSection { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/DrainableRoofSection.g.cs b/Elements.MEP/src/Generated/DrainableRoofSection.g.cs
index 9b73ccd5f..256858e88 100644
--- a/Elements.MEP/src/Generated/DrainableRoofSection.g.cs
+++ b/Elements.MEP/src/Generated/DrainableRoofSection.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A single drainable roof section.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class DrainableRoofSection : GeometricElement
     {
@@ -36,36 +36,36 @@ public DrainableRoofSection(Polygon @boundary, IList<Line> @perimeterLowLines, I
             this.Index = @index;
             this.Configuration = @configuration;
             this.Parent = @parent;
-            }
-        
+        }
+
         // Empty constructor
         public DrainableRoofSection()
             : base()
         {
         }
-    
+
         /// <summary>The boundary of the space.</summary>
         [JsonProperty("Boundary", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Polygon Boundary { get; set; }
-    
+
         /// <summary>Low Lines that lie on the perimeter of the roof.</summary>
         [JsonProperty("Perimeter Low Lines", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<Line> PerimeterLowLines { get; set; }
-    
+
         /// <summary>Low lines that lie within the roof's boundary.</summary>
         [JsonProperty("Interior Low Lines", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<Line> InteriorLowLines { get; set; }
-    
+
         /// <summary>(temporary) Indicates the order of this section within the building.</summary>
         [JsonProperty("index", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public int Index { get; set; }
-    
+
         [JsonProperty("Configuration", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public DrainableRoofSectionConfiguration Configuration { get; set; }
-    
+
         [JsonProperty("Parent", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public DrainableRoofSection Parent { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/DrainableRoofSectionConfiguration.g.cs b/Elements.MEP/src/Generated/DrainableRoofSectionConfiguration.g.cs
index a53e12ffb..a0905e19d 100644
--- a/Elements.MEP/src/Generated/DrainableRoofSectionConfiguration.g.cs
+++ b/Elements.MEP/src/Generated/DrainableRoofSectionConfiguration.g.cs
@@ -19,12 +19,12 @@
 
 namespace Elements
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>The configuration of drainable roof section</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
-    public partial class DrainableRoofSectionConfiguration 
+    public partial class DrainableRoofSectionConfiguration
     {
         [JsonConstructor]
         public DrainableRoofSectionConfiguration(double @drainConnectionOffsetX, double @drainConnectionRunY, double @roofToCollectionDistanceZ)
@@ -32,22 +32,22 @@ public DrainableRoofSectionConfiguration(double @drainConnectionOffsetX, double
             this.DrainConnectionOffsetX = @drainConnectionOffsetX;
             this.DrainConnectionRunY = @drainConnectionRunY;
             this.RoofToCollectionDistanceZ = @roofToCollectionDistanceZ;
-            }
-        
+        }
+
         // Empty constructor
         public DrainableRoofSectionConfiguration()
         {
         }
-    
+
         [JsonProperty("Drain Connection Offset (X)", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DrainConnectionOffsetX { get; set; } = 1D;
-    
+
         [JsonProperty("Drain Connection Run (Y)", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DrainConnectionRunY { get; set; } = 1D;
-    
+
         [JsonProperty("Roof to Collection Distance (Z)", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double RoofToCollectionDistanceZ { get; set; } = 1D;
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Elbow.g.cs b/Elements.MEP/src/Generated/Elbow.g.cs
index 5c5c99c6c..ec43ded7a 100644
--- a/Elements.MEP/src/Generated/Elbow.g.cs
+++ b/Elements.MEP/src/Generated/Elbow.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>An elbow in a pipe network.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Elbow : Fitting
     {
@@ -36,36 +36,36 @@ public Elbow(double @diameter, double @angle, Port @end, Port @start, PressureCa
             this.Start = @start;
             this.PressureCalculations = @pressureCalculations;
             this.BendRadius = @bendRadius;
-            }
-        
+        }
+
         // Empty constructor
         public Elbow()
             : base()
         {
         }
-    
+
         /// <summary>The design diameter of the elbow.</summary>
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         /// <summary>The angle of the elbow.</summary>
         [JsonProperty("Angle", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Angle { get; set; }
-    
+
         /// <summary>The end of the elbow.</summary>
         [JsonProperty("End", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port End { get; set; }
-    
+
         /// <summary>The start of the elbow.</summary>
         [JsonProperty("Start", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port Start { get; set; }
-    
+
         [JsonProperty("Pressure Calculations", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PressureCalculationElbow PressureCalculations { get; set; }
-    
+
         [JsonProperty("BendRadius", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double BendRadius { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/EquipmentBase.g.cs b/Elements.MEP/src/Generated/EquipmentBase.g.cs
index d47359b8a..71c288560 100644
--- a/Elements.MEP/src/Generated/EquipmentBase.g.cs
+++ b/Elements.MEP/src/Generated/EquipmentBase.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Base class for all equipment that has ports.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class EquipmentBase : GeometricElement
     {
@@ -31,18 +31,18 @@ public EquipmentBase(IList<Port> @ports, Transform @transform = null, Material @
             : base(transform, material, representation, isElementDefinition, id, name)
         {
             this.Ports = @ports;
-            }
-        
+        }
+
         // Empty constructor
         public EquipmentBase()
             : base()
         {
         }
-    
+
         /// <summary>The ports on this equipment</summary>
         [JsonProperty("Ports", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<Port> Ports { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Fitting.g.cs b/Elements.MEP/src/Generated/Fitting.g.cs
index 4c01c6890..9ab6e328a 100644
--- a/Elements.MEP/src/Generated/Fitting.g.cs
+++ b/Elements.MEP/src/Generated/Fitting.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>An element that connects segments in a FittingTree.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Fitting : ComponentBase
     {
@@ -31,18 +31,18 @@ public Fitting(bool @canBeMoved, FittingLocator @componentLocator, Transform @tr
             : base(componentLocator, transform, material, representation, isElementDefinition, id, name)
         {
             this.CanBeMoved = @canBeMoved;
-            }
-        
+        }
+
         // Empty constructor
         public Fitting()
             : base()
         {
         }
-    
+
         /// <summary>Indicates if the connection can be moved. Used by functions to mark objects for overriding.</summary>
         [JsonProperty("CanBeMoved", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public bool CanBeMoved { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/FittingLocator.g.cs b/Elements.MEP/src/Generated/FittingLocator.g.cs
index 7c4c55b03..e5372fcd2 100644
--- a/Elements.MEP/src/Generated/FittingLocator.g.cs
+++ b/Elements.MEP/src/Generated/FittingLocator.g.cs
@@ -19,12 +19,12 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Data necessary to localize a fitting in a fitting network.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
-    public partial class FittingLocator 
+    public partial class FittingLocator
     {
         [JsonConstructor]
         public FittingLocator(string @networkReference, string @sectionKey, int @indexInSection)
@@ -32,25 +32,25 @@ public FittingLocator(string @networkReference, string @sectionKey, int @indexIn
             this.NetworkReference = @networkReference;
             this.SectionKey = @sectionKey;
             this.IndexInSection = @indexInSection;
-            }
-        
+        }
+
         // Empty constructor
         public FittingLocator()
         {
         }
-    
+
         /// <summary>The reference label of the network.</summary>
         [JsonProperty("Network Reference", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public string NetworkReference { get; set; }
-    
+
         /// <summary>The key used to locate the section in the network (topologically).</summary>
         [JsonProperty("Section Key", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public string SectionKey { get; set; }
-    
+
         /// <summary>The index of this fitting in the section.</summary>
         [JsonProperty("Index In Section", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public int IndexInSection { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/FittingTree.g.cs b/Elements.MEP/src/Generated/FittingTree.g.cs
index 396fad5de..adfcd4f48 100644
--- a/Elements.MEP/src/Generated/FittingTree.g.cs
+++ b/Elements.MEP/src/Generated/FittingTree.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A network of connected pipe segments</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class FittingTree : Element
     {
@@ -33,26 +33,26 @@ public FittingTree(IList<StraightSegment> @straightSegments, IList<Fitting> @fit
             this.StraightSegments = @straightSegments;
             this.Fittings = @fittings;
             this.Purpose = @purpose;
-            }
-        
+        }
+
         // Empty constructor
         public FittingTree()
             : base()
         {
         }
-    
+
         /// <summary>The segments in the network.</summary>
         [JsonProperty("StraightSegments", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<StraightSegment> StraightSegments { get; set; }
-    
+
         /// <summary>The fittings in this network.</summary>
         [JsonProperty("Fittings", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<Fitting> Fittings { get; set; }
-    
+
         /// <summary>The purpose of the fitting system.</summary>
         [JsonProperty("Purpose", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public string Purpose { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Flow.g.cs b/Elements.MEP/src/Generated/Flow.g.cs
index 4554885ee..a7ce9ea4e 100644
--- a/Elements.MEP/src/Generated/Flow.g.cs
+++ b/Elements.MEP/src/Generated/Flow.g.cs
@@ -19,12 +19,12 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Flow properties for a connector</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
-    public partial class Flow 
+    public partial class Flow
     {
         [JsonConstructor]
         public Flow(double @staticPressure, double @flowRate, double @fluidVelocity, double @dynamicPressure)
@@ -33,29 +33,29 @@ public Flow(double @staticPressure, double @flowRate, double @fluidVelocity, dou
             this.FlowRate = @flowRate;
             this.FluidVelocity = @fluidVelocity;
             this.DynamicPressure = @dynamicPressure;
-            }
-        
+        }
+
         // Empty constructor
         public Flow()
         {
         }
-    
+
         /// <summary>The local static pressure of the fluid, relative to atmosphere.</summary>
         [JsonProperty("StaticPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticPressure { get; set; }
-    
+
         /// <summary>The flow rate of the fluid.</summary>
         [JsonProperty("FlowRate", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FlowRate { get; set; }
-    
+
         /// <summary>The velocity of the fluid.</summary>
         [JsonProperty("FluidVelocity", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocity { get; set; }
-    
+
         /// <summary>The local dynamic pressure of the fluid due to fluid velocity.</summary>
         [JsonProperty("DynamicPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressure { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Leaf.g.cs b/Elements.MEP/src/Generated/Leaf.g.cs
index 4eda688cd..7b3055267 100644
--- a/Elements.MEP/src/Generated/Leaf.g.cs
+++ b/Elements.MEP/src/Generated/Leaf.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Flow
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A port with flow in or out of a tree.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Leaf : Node
     {
@@ -32,23 +32,23 @@ public Leaf(double @flow, System.Guid? @terminalId, Vector3 @position, System.Gu
         {
             this.Flow = @flow;
             this.TerminalId = @terminalId;
-            }
-        
+        }
+
         // Empty constructor
         public Leaf()
             : base()
         {
         }
-    
+
         /// <summary>The amount of flow in this port.</summary>
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         [System.ComponentModel.DataAnnotations.Range(0D, double.MaxValue)]
         public double Flow { get; set; }
-    
+
         /// <summary>The id of the terminal being served</summary>
         [JsonProperty("TerminalId", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public System.Guid? TerminalId { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Manifold.g.cs b/Elements.MEP/src/Generated/Manifold.g.cs
index 9b1b88c9b..cf4e91a70 100644
--- a/Elements.MEP/src/Generated/Manifold.g.cs
+++ b/Elements.MEP/src/Generated/Manifold.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A fitting that is generically one trunk to many branches.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Manifold : Fitting
     {
@@ -33,23 +33,23 @@ public Manifold(Port @trunk, IList<Port> @branches, PressureCalculationManifold
             this.Trunk = @trunk;
             this.Branches = @branches;
             this.PressureCalculations = @pressureCalculations;
-            }
-        
+        }
+
         // Empty constructor
         public Manifold()
             : base()
         {
         }
-    
+
         [JsonProperty("Trunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port Trunk { get; set; }
-    
+
         [JsonProperty("Branches", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<Port> Branches { get; set; }
-    
+
         [JsonProperty("Pressure Calculations", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PressureCalculationManifold PressureCalculations { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Node.g.cs b/Elements.MEP/src/Generated/Node.g.cs
index 122fc15c4..500cd7795 100644
--- a/Elements.MEP/src/Generated/Node.g.cs
+++ b/Elements.MEP/src/Generated/Node.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Flow
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A node in a tree.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Node : Element
     {
@@ -31,18 +31,18 @@ public Node(Vector3 @position, System.Guid @id = default, string @name = null)
             : base(id, name)
         {
             this.Position = @position;
-            }
-        
+        }
+
         // Empty constructor
         public Node()
             : base()
         {
         }
-    
+
         /// <summary>The location of the node.</summary>
         [JsonProperty("Position", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Vector3 Position { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Port.g.cs b/Elements.MEP/src/Generated/Port.g.cs
index dcde69c3e..cd161c99d 100644
--- a/Elements.MEP/src/Generated/Port.g.cs
+++ b/Elements.MEP/src/Generated/Port.g.cs
@@ -19,12 +19,12 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A specific location where a fitting makes a connection.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
-    public partial class Port 
+    public partial class Port
     {
         [JsonConstructor]
         public Port(Vector3 @position, Vector3 @direction, double @diameter, Flow @flow, IList<string> @tags, PortConnectionType @connectionType, PortDimensions @dimensions)
@@ -36,38 +36,38 @@ public Port(Vector3 @position, Vector3 @direction, double @diameter, Flow @flow,
             this.Tags = @tags;
             this.ConnectionType = @connectionType;
             this.Dimensions = @dimensions;
-            }
-        
+        }
+
         // Empty constructor
         public Port()
         {
         }
-    
+
         /// <summary>The location of the connector.</summary>
         [JsonProperty("Position", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Vector3 Position { get; set; }
-    
+
         /// <summary>The direction the connector faces. This is "out" from the connector, or away from the element being connected.</summary>
         [JsonProperty("Direction", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Vector3 Direction { get; set; }
-    
+
         /// <summary>The diameter of the connector.</summary>
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         /// <summary>The flow properties of the connector.</summary>
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Flow Flow { get; set; }
-    
+
         [JsonProperty("Tags", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<string> Tags { get; set; }
-    
+
         [JsonProperty("Connection Type", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PortConnectionType ConnectionType { get; set; }
-    
+
         [JsonProperty("Dimensions", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PortDimensions Dimensions { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PortConnectionType.g.cs b/Elements.MEP/src/Generated/PortConnectionType.g.cs
index b982144ec..adb8481e0 100644
--- a/Elements.MEP/src/Generated/PortConnectionType.g.cs
+++ b/Elements.MEP/src/Generated/PortConnectionType.g.cs
@@ -19,33 +19,33 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Connection specification of a port </summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
-    public partial class PortConnectionType 
+    public partial class PortConnectionType
     {
         [JsonConstructor]
         public PortConnectionType(PortConnectionTypeConnectivty @connectivty, PortConnectionTypeEndType @endType)
         {
             this.Connectivty = @connectivty;
             this.EndType = @endType;
-            }
-        
+        }
+
         // Empty constructor
         public PortConnectionType()
         {
         }
-    
+
         [JsonProperty("Connectivty", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
         public PortConnectionTypeConnectivty Connectivty { get; set; }
-    
+
         [JsonProperty("EndType", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
         public PortConnectionTypeEndType EndType { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PortDimensions.g.cs b/Elements.MEP/src/Generated/PortDimensions.g.cs
index e9a1de986..b45e0a9df 100644
--- a/Elements.MEP/src/Generated/PortDimensions.g.cs
+++ b/Elements.MEP/src/Generated/PortDimensions.g.cs
@@ -19,12 +19,12 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Dimensions of port extra properties</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
-    public partial class PortDimensions 
+    public partial class PortDimensions
     {
         [JsonConstructor]
         public PortDimensions(double @extension, double @bodyDiameter, double @bodyLength)
@@ -32,25 +32,25 @@ public PortDimensions(double @extension, double @bodyDiameter, double @bodyLengt
             this.Extension = @extension;
             this.BodyDiameter = @bodyDiameter;
             this.BodyLength = @bodyLength;
-            }
-        
+        }
+
         // Empty constructor
         public PortDimensions()
         {
         }
-    
+
         /// <summary>Length that the fitting extends beyond the port.</summary>
         [JsonProperty("Extension", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Extension { get; set; }
-    
+
         /// <summary>Diameter of the  “body” of the connector, expected to be larger than the diameter of the connector.</summary>
         [JsonProperty("Body Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double BodyDiameter { get; set; }
-    
+
         /// <summary>Length of the body of the connector, length of the “thicker” part of the connector.</summary>
         [JsonProperty("Body Length", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double BodyLength { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PressureCalculationBase.g.cs b/Elements.MEP/src/Generated/PressureCalculationBase.g.cs
index 3058a4799..5180ccfdb 100644
--- a/Elements.MEP/src/Generated/PressureCalculationBase.g.cs
+++ b/Elements.MEP/src/Generated/PressureCalculationBase.g.cs
@@ -19,28 +19,28 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Base class for information about pressure calculations of a fitting.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
-    public partial class PressureCalculationBase 
+    public partial class PressureCalculationBase
     {
         [JsonConstructor]
         public PressureCalculationBase(System.Guid @elementId)
         {
             this.ElementId = @elementId;
-            }
-        
+        }
+
         // Empty constructor
         public PressureCalculationBase()
         {
         }
-    
+
         /// <summary>The Id of the element this data applies to.</summary>
         [JsonProperty("ElementId", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public System.Guid ElementId { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PressureCalculationCoupler.g.cs b/Elements.MEP/src/Generated/PressureCalculationCoupler.g.cs
index afdf3b67f..654dd7a06 100644
--- a/Elements.MEP/src/Generated/PressureCalculationCoupler.g.cs
+++ b/Elements.MEP/src/Generated/PressureCalculationCoupler.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>The pressure calculations for a coupler.  This may not be used...?</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class PressureCalculationCoupler : PressureCalculationBase
     {
@@ -44,58 +44,58 @@ public PressureCalculationCoupler(double @diameter, double @diameterInner, doubl
             this.MaxUnderPressure = @maxUnderPressure;
             this.TotalPressure = @totalPressure;
             this.FrictionLossCoefficient = @frictionLossCoefficient;
-            }
-        
+        }
+
         // Empty constructor
         public PressureCalculationCoupler()
             : base()
         {
         }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         [JsonProperty("DiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterInner { get; set; }
-    
+
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         [JsonProperty("HeightDelta", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDelta { get; set; }
-    
+
         [JsonProperty("Length", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Length { get; set; }
-    
+
         [JsonProperty("PipeLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLoss { get; set; }
-    
+
         [JsonProperty("StaticGain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGain { get; set; }
-    
+
         [JsonProperty("FrictionFactor", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FrictionFactor { get; set; }
-    
+
         [JsonProperty("ReynoldsNumber", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ReynoldsNumber { get; set; }
-    
+
         [JsonProperty("FluidVelocity", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocity { get; set; }
-    
+
         [JsonProperty("DynamicPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressure { get; set; }
-    
+
         /// <summary>The maximum underpressure this coupler can structurally sustain</summary>
         [JsonProperty("MaxUnderPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double MaxUnderPressure { get; set; }
-    
+
         /// <summary>The sum if Dynamic and Static pressure at the start of the pipe</summary>
         [JsonProperty("TotalPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double TotalPressure { get; set; }
-    
+
         [JsonProperty("FrictionLossCoefficient", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FrictionLossCoefficient { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PressureCalculationCross.g.cs b/Elements.MEP/src/Generated/PressureCalculationCross.g.cs
index c29d07153..18512ccd3 100644
--- a/Elements.MEP/src/Generated/PressureCalculationCross.g.cs
+++ b/Elements.MEP/src/Generated/PressureCalculationCross.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>The pressure calculation data for Cross fittings.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class PressureCalculationCross : PressureCalculationBase
     {
@@ -71,137 +71,137 @@ public PressureCalculationCross(double @diameter, double @diameterA, double @dia
             this.LengthB = @lengthB;
             this.LengthC = @lengthC;
             this.FrictionLossCoefficient = @frictionLossCoefficient;
-            }
-        
+        }
+
         // Empty constructor
         public PressureCalculationCross()
             : base()
         {
         }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         [JsonProperty("DiameterA", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterA { get; set; }
-    
+
         [JsonProperty("DiameterB", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterB { get; set; }
-    
+
         [JsonProperty("DiameterC", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterC { get; set; }
-    
+
         [JsonProperty("DiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterInner { get; set; }
-    
+
         [JsonProperty("DiameterAInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterAInner { get; set; }
-    
+
         [JsonProperty("DiameterBInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterBInner { get; set; }
-    
+
         [JsonProperty("DiameterCInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterCInner { get; set; }
-    
+
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         [JsonProperty("FlowA", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FlowA { get; set; }
-    
+
         [JsonProperty("FlowB", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FlowB { get; set; }
-    
+
         [JsonProperty("FlowC", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FlowC { get; set; }
-    
+
         [JsonProperty("ZLossAToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZLossAToTrunk { get; set; }
-    
+
         [JsonProperty("ZAToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZAToTrunk { get; set; }
-    
+
         [JsonProperty("ZLossBToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZLossBToTrunk { get; set; }
-    
+
         [JsonProperty("ZBToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZBToTrunk { get; set; }
-    
+
         [JsonProperty("ZLossCToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZLossCToTrunk { get; set; }
-    
+
         [JsonProperty("ZCToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZCToTrunk { get; set; }
-    
+
         [JsonProperty("StaticGainBToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGainBToTrunk { get; set; }
-    
+
         [JsonProperty("StaticGainCToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGainCToTrunk { get; set; }
-    
+
         [JsonProperty("StaticGainAToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGainAToTrunk { get; set; }
-    
+
         [JsonProperty("FluidVelocityA", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocityA { get; set; }
-    
+
         [JsonProperty("FluidVelocity", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocity { get; set; }
-    
+
         [JsonProperty("FluidVelocityB", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocityB { get; set; }
-    
+
         [JsonProperty("FluidVelocityC", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocityC { get; set; }
-    
+
         [JsonProperty("HeightDeltaAToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDeltaAToTrunk { get; set; }
-    
+
         [JsonProperty("HeightDeltaBToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDeltaBToTrunk { get; set; }
-    
+
         [JsonProperty("HeightDeltaCToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDeltaCToTrunk { get; set; }
-    
+
         [JsonProperty("PipeLossA", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLossA { get; set; }
-    
+
         [JsonProperty("PipeLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLoss { get; set; }
-    
+
         [JsonProperty("PipeLossB", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLossB { get; set; }
-    
+
         [JsonProperty("PipeLossC", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLossC { get; set; }
-    
+
         [JsonProperty("DynamicPressureA", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressureA { get; set; }
-    
+
         [JsonProperty("DynamicPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressure { get; set; }
-    
+
         [JsonProperty("DynamicPressureB", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressureB { get; set; }
-    
+
         [JsonProperty("DynamicPressureC", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressureC { get; set; }
-    
+
         [JsonProperty("LengthMain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double LengthMain { get; set; }
-    
+
         [JsonProperty("Length", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Length { get; set; }
-    
+
         [JsonProperty("LengthB", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double LengthB { get; set; }
-    
+
         [JsonProperty("LengthC", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double LengthC { get; set; }
-    
+
         [JsonProperty("FrictionLossCoefficient", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FrictionLossCoefficient { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PressureCalculationElbow.g.cs b/Elements.MEP/src/Generated/PressureCalculationElbow.g.cs
index 3f687b8d5..d00071fbc 100644
--- a/Elements.MEP/src/Generated/PressureCalculationElbow.g.cs
+++ b/Elements.MEP/src/Generated/PressureCalculationElbow.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Pressure calculation data for an elbow</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class PressureCalculationElbow : PressureCalculationBase
     {
@@ -46,62 +46,62 @@ public PressureCalculationElbow(double @zLoss, double @z, double @staticGain, do
             this.DynamicPressure = @dynamicPressure;
             this.RoverD = @roverD;
             this.FrictionLossCoefficient = @frictionLossCoefficient;
-            }
-        
+        }
+
         // Empty constructor
         public PressureCalculationElbow()
             : base()
         {
         }
-    
+
         [JsonProperty("ZLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZLoss { get; set; }
-    
+
         [JsonProperty("Z", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Z { get; set; }
-    
+
         [JsonProperty("StaticGain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGain { get; set; }
-    
+
         [JsonProperty("PipeLossStart", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLossStart { get; set; }
-    
+
         [JsonProperty("PipeLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLoss { get; set; }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         [JsonProperty("DiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterInner { get; set; }
-    
+
         [JsonProperty("HeightDelta", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDelta { get; set; }
-    
+
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         [JsonProperty("LengthStart", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double LengthStart { get; set; }
-    
+
         [JsonProperty("Length", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Length { get; set; }
-    
+
         [JsonProperty("BendAngle", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double BendAngle { get; set; }
-    
+
         [JsonProperty("FluidVelocity", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocity { get; set; }
-    
+
         [JsonProperty("DynamicPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressure { get; set; }
-    
+
         [JsonProperty("RoverD", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double RoverD { get; set; }
-    
+
         [JsonProperty("FrictionLossCoefficient", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FrictionLossCoefficient { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PressureCalculationManifold.g.cs b/Elements.MEP/src/Generated/PressureCalculationManifold.g.cs
index ad406f249..797c3abe0 100644
--- a/Elements.MEP/src/Generated/PressureCalculationManifold.g.cs
+++ b/Elements.MEP/src/Generated/PressureCalculationManifold.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>The pressure calculation data for a manifold</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class PressureCalculationManifold : PressureCalculationBase
     {
@@ -39,41 +39,41 @@ public PressureCalculationManifold(IList<double> @zLosses, IList<double> @flows,
             this.PipeLosses = @pipeLosses;
             this.Flow = @flow;
             this.Diameter = @diameter;
-            }
-        
+        }
+
         // Empty constructor
         public PressureCalculationManifold()
             : base()
         {
         }
-    
+
         [JsonProperty("ZLosses", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<double> ZLosses { get; set; }
-    
+
         [JsonProperty("Flows", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<double> Flows { get; set; }
-    
+
         [JsonProperty("Diameters", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<double> Diameters { get; set; }
-    
+
         [JsonProperty("HeightDeltas", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<double> HeightDeltas { get; set; }
-    
+
         [JsonProperty("StaticGains", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<double> StaticGains { get; set; }
-    
+
         [JsonProperty("Lengths", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<double> Lengths { get; set; }
-    
+
         [JsonProperty("PipeLosses", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public IList<double> PipeLosses { get; set; }
-    
+
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PressureCalculationReducer.g.cs b/Elements.MEP/src/Generated/PressureCalculationReducer.g.cs
index 2486bacd3..10a8b837f 100644
--- a/Elements.MEP/src/Generated/PressureCalculationReducer.g.cs
+++ b/Elements.MEP/src/Generated/PressureCalculationReducer.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>The pressure calculation data for the fitting.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class PressureCalculationReducer : PressureCalculationBase
     {
@@ -48,68 +48,68 @@ public PressureCalculationReducer(double @startDiameter, double @diameter, doubl
             this.LengthStart = @lengthStart;
             this.Length = @length;
             this.FrictionLossCoefficient = @frictionLossCoefficient;
-            }
-        
+        }
+
         // Empty constructor
         public PressureCalculationReducer()
             : base()
         {
         }
-    
+
         [JsonProperty("StartDiameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StartDiameter { get; set; }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         [JsonProperty("StartDiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StartDiameterInner { get; set; }
-    
+
         [JsonProperty("DiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterInner { get; set; }
-    
+
         [JsonProperty("HeightDelta", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDelta { get; set; }
-    
+
         [JsonProperty("ZLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZLoss { get; set; }
-    
+
         [JsonProperty("Z", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Z { get; set; }
-    
+
         [JsonProperty("StaticGain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGain { get; set; }
-    
+
         [JsonProperty("PipeLossStart", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLossStart { get; set; }
-    
+
         [JsonProperty("PipeLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLoss { get; set; }
-    
+
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         [JsonProperty("FluidVelocityStart", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocityStart { get; set; }
-    
+
         [JsonProperty("FluidVelocity", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocity { get; set; }
-    
+
         [JsonProperty("DynamicPressureStart", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressureStart { get; set; }
-    
+
         [JsonProperty("DynamicPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressure { get; set; }
-    
+
         [JsonProperty("LengthStart", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double LengthStart { get; set; }
-    
+
         [JsonProperty("Length", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Length { get; set; }
-    
+
         [JsonProperty("FrictionLossCoefficient", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FrictionLossCoefficient { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PressureCalculationSegment.g.cs b/Elements.MEP/src/Generated/PressureCalculationSegment.g.cs
index 8a5a1d30f..ca10734a6 100644
--- a/Elements.MEP/src/Generated/PressureCalculationSegment.g.cs
+++ b/Elements.MEP/src/Generated/PressureCalculationSegment.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Pressure calculation data.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class PressureCalculationSegment : PressureCalculationBase
     {
@@ -44,58 +44,58 @@ public PressureCalculationSegment(double @diameter, double @diameterInner, doubl
             this.MaxUnderPressure = @maxUnderPressure;
             this.TotalPressure = @totalPressure;
             this.FrictionLossCoefficient = @frictionLossCoefficient;
-            }
-        
+        }
+
         // Empty constructor
         public PressureCalculationSegment()
             : base()
         {
         }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         [JsonProperty("DiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterInner { get; set; }
-    
+
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         [JsonProperty("HeightDelta", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDelta { get; set; }
-    
+
         [JsonProperty("Length", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Length { get; set; }
-    
+
         [JsonProperty("PipeLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLoss { get; set; }
-    
+
         [JsonProperty("StaticGain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGain { get; set; }
-    
+
         [JsonProperty("FrictionFactor", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FrictionFactor { get; set; }
-    
+
         [JsonProperty("ReynoldsNumber", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ReynoldsNumber { get; set; }
-    
+
         [JsonProperty("FluidVelocity", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocity { get; set; }
-    
+
         [JsonProperty("DynamicPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressure { get; set; }
-    
+
         /// <summary>The maximum underpressure this pipe can structurally sustain.</summary>
         [JsonProperty("MaxUnderPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double MaxUnderPressure { get; set; }
-    
+
         /// <summary>The sum of Dynamic and Static pressures at the start of the pipe.</summary>
         [JsonProperty("TotalPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double TotalPressure { get; set; }
-    
+
         [JsonProperty("FrictionLossCoefficient", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FrictionLossCoefficient { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PressureCalculationTerminal.g.cs b/Elements.MEP/src/Generated/PressureCalculationTerminal.g.cs
index 202ee1f2f..26b7b8ea4 100644
--- a/Elements.MEP/src/Generated/PressureCalculationTerminal.g.cs
+++ b/Elements.MEP/src/Generated/PressureCalculationTerminal.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Pressure calc data</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class PressureCalculationTerminal : PressureCalculationBase
     {
@@ -43,53 +43,53 @@ public PressureCalculationTerminal(double? @fixedPressure, double @pipeLoss, dou
             this.HeightDelta = @heightDelta;
             this.DynamicPressure = @dynamicPressure;
             this.FrictionLossCoefficient = @frictionLossCoefficient;
-            }
-        
+        }
+
         // Empty constructor
         public PressureCalculationTerminal()
             : base()
         {
         }
-    
+
         [JsonProperty("FixedPressure", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double? FixedPressure { get; set; }
-    
+
         [JsonProperty("PipeLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLoss { get; set; }
-    
+
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         [JsonProperty("FluidVelocity", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocity { get; set; }
-    
+
         [JsonProperty("ZLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZLoss { get; set; }
-    
+
         [JsonProperty("Z", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Z { get; set; }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         [JsonProperty("DiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterInner { get; set; }
-    
+
         [JsonProperty("Length", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Length { get; set; }
-    
+
         [JsonProperty("StaticGain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGain { get; set; }
-    
+
         [JsonProperty("HeightDelta", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDelta { get; set; }
-    
+
         [JsonProperty("DynamicPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressure { get; set; }
-    
+
         [JsonProperty("FrictionLossCoefficient", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FrictionLossCoefficient { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/PressureCalculationWye.g.cs b/Elements.MEP/src/Generated/PressureCalculationWye.g.cs
index eb34e9f14..4ae74875c 100644
--- a/Elements.MEP/src/Generated/PressureCalculationWye.g.cs
+++ b/Elements.MEP/src/Generated/PressureCalculationWye.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>Pressure calculation data for a wye fitting</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class PressureCalculationWye : PressureCalculationBase
     {
@@ -60,104 +60,104 @@ public PressureCalculationWye(double @diameter, double @mainDiameter, double @br
             this.Length = @length;
             this.LengthBranch = @lengthBranch;
             this.FrictionLossCoefficient = @frictionLossCoefficient;
-            }
-        
+        }
+
         // Empty constructor
         public PressureCalculationWye()
             : base()
         {
         }
-    
+
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         [JsonProperty("MainDiameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double MainDiameter { get; set; }
-    
+
         [JsonProperty("BranchDiameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double BranchDiameter { get; set; }
-    
+
         [JsonProperty("DiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DiameterInner { get; set; }
-    
+
         [JsonProperty("MainDiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double MainDiameterInner { get; set; }
-    
+
         [JsonProperty("BranchDiameterInner", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double BranchDiameterInner { get; set; }
-    
+
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         [JsonProperty("FlowMain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FlowMain { get; set; }
-    
+
         [JsonProperty("FlowBranch", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FlowBranch { get; set; }
-    
+
         [JsonProperty("ZLossBranchToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZLossBranchToTrunk { get; set; }
-    
+
         [JsonProperty("ZBranchToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZBranchToTrunk { get; set; }
-    
+
         [JsonProperty("ZLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double ZLoss { get; set; }
-    
+
         [JsonProperty("Z", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Z { get; set; }
-    
+
         [JsonProperty("StaticGainBranchToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGainBranchToTrunk { get; set; }
-    
+
         [JsonProperty("StaticGain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticGain { get; set; }
-    
+
         [JsonProperty("FluidVelocityMain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocityMain { get; set; }
-    
+
         [JsonProperty("FluidVelocity", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocity { get; set; }
-    
+
         [JsonProperty("FluidVelocityBranch", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FluidVelocityBranch { get; set; }
-    
+
         [JsonProperty("HeightDelta", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDelta { get; set; }
-    
+
         [JsonProperty("HeightDeltaBranchToTrunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double HeightDeltaBranchToTrunk { get; set; }
-    
+
         [JsonProperty("PipeLossMain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLossMain { get; set; }
-    
+
         [JsonProperty("PipeLoss", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLoss { get; set; }
-    
+
         [JsonProperty("PipeLossBranch", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PipeLossBranch { get; set; }
-    
+
         [JsonProperty("DynamicPressureMain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressureMain { get; set; }
-    
+
         [JsonProperty("DynamicPressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressure { get; set; }
-    
+
         [JsonProperty("DynamicPressureBranch", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DynamicPressureBranch { get; set; }
-    
+
         [JsonProperty("LengthMain", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double LengthMain { get; set; }
-    
+
         [JsonProperty("Length", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Length { get; set; }
-    
+
         [JsonProperty("LengthBranch", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double LengthBranch { get; set; }
-    
+
         [JsonProperty("FrictionLossCoefficient", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double FrictionLossCoefficient { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/RainLoad.g.cs b/Elements.MEP/src/Generated/RainLoad.g.cs
index e127a300b..c8b482c70 100644
--- a/Elements.MEP/src/Generated/RainLoad.g.cs
+++ b/Elements.MEP/src/Generated/RainLoad.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>The amount of rain that needs to be drained.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class RainLoad : Element
     {
@@ -32,22 +32,22 @@ public RainLoad(double @rainLoad, System.Guid @roofSection, System.Guid @id = de
         {
             this.RainLoad1 = @rainLoad;
             this.RoofSection = @roofSection;
-            }
-        
+        }
+
         // Empty constructor
         public RainLoad()
             : base()
         {
         }
-    
+
         /// <summary>The amount of water in L/s that needs to be drained.</summary>
         [JsonProperty("Rain Load", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double RainLoad1 { get; set; }
-    
+
         /// <summary>ID of the roof section that is associated with this load</summary>
         [JsonProperty("Roof Section", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public System.Guid RoofSection { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Reducer.g.cs b/Elements.MEP/src/Generated/Reducer.g.cs
index b452bbb03..8b3afa29e 100644
--- a/Elements.MEP/src/Generated/Reducer.g.cs
+++ b/Elements.MEP/src/Generated/Reducer.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A Fitting that can reduce the diameter of the pipe passing through.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Reducer : Fitting
     {
@@ -33,26 +33,26 @@ public Reducer(Port @start, Port @end, PressureCalculationReducer @pressureCalcu
             this.Start = @start;
             this.End = @end;
             this.PressureCalculations = @pressureCalculations;
-            }
-        
+        }
+
         // Empty constructor
         public Reducer()
             : base()
         {
         }
-    
+
         /// <summary>One end connector of the coupling.</summary>
         [JsonProperty("Start", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port Start { get; set; }
-    
+
         /// <summary>The other end of the reducer.</summary>
         [JsonProperty("End", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port End { get; set; }
-    
+
         /// <summary>Pressure calcs</summary>
         [JsonProperty("Pressure Calculations", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PressureCalculationReducer PressureCalculations { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/RoofDrain.g.cs b/Elements.MEP/src/Generated/RoofDrain.g.cs
index d1eede735..e6aa8084f 100644
--- a/Elements.MEP/src/Generated/RoofDrain.g.cs
+++ b/Elements.MEP/src/Generated/RoofDrain.g.cs
@@ -19,9 +19,9 @@
 
 namespace Elements
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
+
 
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class RoofDrain : GeometricElement
     {
@@ -36,42 +36,42 @@ public RoofDrain(double @diameter, double @drainageRate, int @lowLineIndex, doub
             this.IsFollower = @isFollower;
             this.WaterHeight = @waterHeight;
             this.RoofSection = @roofSection;
-            }
-        
+        }
+
         // Empty constructor
         public RoofDrain()
             : base()
         {
         }
-    
+
         /// <summary>The diameter of the roof drain.</summary>
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         /// <summary>The drainage rate of this drain</summary>
         [JsonProperty("Drainage Rate", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double DrainageRate { get; set; }
-    
+
         /// <summary>The index of the lowline, in the Roof Section's list of Low Lines, that contains this roof drain.</summary>
         [JsonProperty("Low Line Index", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public int LowLineIndex { get; set; }
-    
+
         /// <summary>The normalized parameter of this roof drain's location in the lowline.</summary>
         [JsonProperty("Position Parameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double PositionParameter { get; set; }
-    
+
         /// <summary>This roof drain follows the relataive position of an original roof drain to its drainable section.</summary>
         [JsonProperty("IsFollower", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public bool IsFollower { get; set; }
-    
+
         /// <summary>The design height of water at the Drainage Rate.</summary>
         [JsonProperty("WaterHeight", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double WaterHeight { get; set; }
-    
+
         /// <summary>The ID of the associated DrainableRoofSection</summary>
         [JsonProperty("Roof Section", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public string RoofSection { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Section.g.cs b/Elements.MEP/src/Generated/Section.g.cs
index 870117128..334e1a25a 100644
--- a/Elements.MEP/src/Generated/Section.g.cs
+++ b/Elements.MEP/src/Generated/Section.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Flow
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A non branching portion between two nodes in a Tree network</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Section : GeometricElement
     {
@@ -37,42 +37,42 @@ public Section(Polyline @path, Node @end, double @flow, Node @start, Tree @tree,
             this.Tree = @tree;
             this.SectionKey = @sectionKey;
             this.HintPath = @hintPath;
-            }
-        
+        }
+
         // Empty constructor
         public Section()
             : base()
         {
         }
-    
+
         /// <summary>The polyline path of this Section.</summary>
         [JsonProperty("Path", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Polyline Path { get; set; }
-    
+
         /// <summary>One end of the section.</summary>
         [JsonProperty("End", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Node End { get; set; }
-    
+
         /// <summary>The flow of this section.</summary>
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         /// <summary>The start node of the section.</summary>
         [JsonProperty("Start", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Node Start { get; set; }
-    
+
         /// <summary>The tree this section belongs to.</summary>
         [JsonProperty("Tree", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Tree Tree { get; set; }
-    
+
         /// <summary>The key to identify this section in a network.</summary>
         [JsonProperty("SectionKey", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public string SectionKey { get; set; }
-    
+
         /// <summary>The suggested route for flow.</summary>
         [JsonProperty("HintPath", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Polyline HintPath { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/StraightSegment.g.cs b/Elements.MEP/src/Generated/StraightSegment.g.cs
index 589be3cdc..a9b5d3eaa 100644
--- a/Elements.MEP/src/Generated/StraightSegment.g.cs
+++ b/Elements.MEP/src/Generated/StraightSegment.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>An element representing a pipe between two PipeConnections.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class StraightSegment : ComponentBase
     {
@@ -36,38 +36,38 @@ public StraightSegment(double @diameter, double @wallThickness, Port @end, Port
             this.Start = @start;
             this.Path = @path;
             this.PressureCalculations = @pressureCalculations;
-            }
-        
+        }
+
         // Empty constructor
         public StraightSegment()
             : base()
         {
         }
-    
+
         /// <summary>The design diameter of the pipe(not the flow diameter).</summary>
         [JsonProperty("Diameter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Diameter { get; set; }
-    
+
         /// <summary>The thickness of the wall of the pipe. The available diameter for flow is the Diameter minus 2X the Wall Thickness</summary>
         [JsonProperty("Wall Thickness", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double WallThickness { get; set; }
-    
+
         /// <summary>The end of the pipe. Fluid travels from start -&gt; end in a pipe.</summary>
         [JsonProperty("End", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port End { get; set; }
-    
+
         /// <summary>The start of the pipe. Fluid travels from start -&gt; end in a pipe.</summary>
         [JsonProperty("Start", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port Start { get; set; }
-    
+
         /// <summary>The path of the pipe segment. This polyline will normally have exactly two points except when a new path is being suggested as an override.</summary>
         [JsonProperty("Path", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Polyline Path { get; set; }
-    
+
         /// <summary>The pressure calculation data for this pipe segment.</summary>
         [JsonProperty("Pressure Calculations", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PressureCalculationSegment PressureCalculations { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Terminal.g.cs b/Elements.MEP/src/Generated/Terminal.g.cs
index 288f8c182..a47c51d29 100644
--- a/Elements.MEP/src/Generated/Terminal.g.cs
+++ b/Elements.MEP/src/Generated/Terminal.g.cs
@@ -20,10 +20,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A termination point of a piping system. Has a single connection.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Terminal : Fitting
     {
@@ -35,30 +35,30 @@ public Terminal(Port @port, Node @flowNode, PressureCalculationTerminal @pressur
             this.FlowNode = @flowNode;
             this.PressureCalculations = @pressureCalculations;
             this.StaticPressure = @staticPressure;
-            }
-        
+        }
+
         // Empty constructor
         public Terminal()
             : base()
         {
         }
-    
+
         /// <summary>The connector for this terminal.</summary>
         [JsonProperty("Port", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port Port { get; set; }
-    
+
         /// <summary>The Node served by this Terminal, if any.</summary>
         [JsonProperty("FlowNode", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Node FlowNode { get; set; }
-    
+
         /// <summary>The Pressure calculations</summary>
         [JsonProperty("Pressure Calculations", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PressureCalculationTerminal PressureCalculations { get; set; }
-    
+
         /// <summary>The static pressure at the final termination.</summary>
         [JsonProperty("Static Pressure", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double StaticPressure { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Trunk.g.cs b/Elements.MEP/src/Generated/Trunk.g.cs
index 2c67baa35..0f16682b0 100644
--- a/Elements.MEP/src/Generated/Trunk.g.cs
+++ b/Elements.MEP/src/Generated/Trunk.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Flow
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A port with flow in or out of a tree.</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Trunk : Node
     {
@@ -32,22 +32,22 @@ public Trunk(double @flow, string @networkReference, Vector3 @position, System.G
         {
             this.Flow = @flow;
             this.NetworkReference = @networkReference;
-            }
-        
+        }
+
         // Empty constructor
         public Trunk()
             : base()
         {
         }
-    
+
         /// <summary>The amount of flow in the trunk.</summary>
         [JsonProperty("Flow", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Flow { get; set; }
-    
+
         /// <summary>A reference to the network this node belongs to.</summary>
         [JsonProperty("NetworkReference", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public string NetworkReference { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/Generated/Wye.g.cs b/Elements.MEP/src/Generated/Wye.g.cs
index e6b27874f..1780aac3b 100644
--- a/Elements.MEP/src/Generated/Wye.g.cs
+++ b/Elements.MEP/src/Generated/Wye.g.cs
@@ -19,10 +19,10 @@
 
 namespace Elements.Fittings
 {
-    #pragma warning disable // Disable all warnings
+#pragma warning disable // Disable all warnings
 
     /// <summary>A Wye piping connection</summary>
-    [JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
+
     [System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "10.1.21.0 (Newtonsoft.Json v13.0.0.0)")]
     public partial class Wye : Fitting
     {
@@ -35,34 +35,34 @@ public Wye(Port @trunk, double @angle, Port @sideBranch, Port @mainBranch, Press
             this.SideBranch = @sideBranch;
             this.MainBranch = @mainBranch;
             this.PressureCalculations = @pressureCalculations;
-            }
-        
+        }
+
         // Empty constructor
         public Wye()
             : base()
         {
         }
-    
+
         /// <summary>The connector at the trunk</summary>
         [JsonProperty("Trunk", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port Trunk { get; set; }
-    
+
         /// <summary>The angle the SideBranch makes with the MainBranch</summary>
         [JsonProperty("Angle", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public double Angle { get; set; }
-    
+
         /// <summary>The connector that branches from the Trunk, angled from the MainBranch.</summary>
         [JsonProperty("SideBranch", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port SideBranch { get; set; }
-    
+
         /// <summary>The connector of the main branch from the Trunk.</summary>
         [JsonProperty("MainBranch", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public Port MainBranch { get; set; }
-    
+
         /// <summary>Pressure Calculations</summary>
         [JsonProperty("Pressure Calculations", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
         public PressureCalculationWye PressureCalculations { get; set; }
-    
-    
+
+
     }
 }
\ No newline at end of file
diff --git a/Elements.MEP/src/MergeGroup.cs b/Elements.MEP/src/MergeGroup.cs
index fcc114de7..ba9043b81 100644
--- a/Elements.MEP/src/MergeGroup.cs
+++ b/Elements.MEP/src/MergeGroup.cs
@@ -6,7 +6,6 @@
 namespace Elements
 {
     /// <summary>A list of elements that are grouped together.</summary>
-    [Newtonsoft.Json.JsonConverter(typeof(Elements.Serialization.JSON.JsonInheritanceConverter), "discriminator")]
     public partial class MergeGroup : GeometricElement
     {
         [Newtonsoft.Json.JsonConstructor]
diff --git a/Elements.MEP/test/SerializationTests.cs b/Elements.MEP/test/SerializationTests.cs
index 161f2f4c8..f25c5b02e 100644
--- a/Elements.MEP/test/SerializationTests.cs
+++ b/Elements.MEP/test/SerializationTests.cs
@@ -65,8 +65,8 @@ public void RoofDrainTests()
             model.AddElement(drain);
             var json = model.ToJson();
 
-            var mdl = Model.FromJson(json, out var errors);
-            Assert.Empty(errors);
+            var mdl = Model.FromJson(json);
+            // Assert.Empty(errors);
         }
     }
 }
\ No newline at end of file
diff --git a/Elements/src/CoreModels/SharedObject.cs b/Elements/src/CoreModels/SharedObject.cs
index b33325d1a..b9614a4d8 100644
--- a/Elements/src/CoreModels/SharedObject.cs
+++ b/Elements/src/CoreModels/SharedObject.cs
@@ -6,7 +6,6 @@ namespace Elements
     /// <summary>
     /// An object with a unique identifier which is shared by one or more elements, and excluded from element serialization.
     /// </summary>
-    [JsonConverter(typeof(Serialization.JSON.JsonInheritanceConverter), "discriminator")]
     public class SharedObject
     {
         private Guid _id;
@@ -14,7 +13,7 @@ public class SharedObject
         /// <summary>
         /// Initializes a new instance of SharedObject.
         /// </summary>
-        /// <param name="id">The unique id of the object.</param> 
+        /// <param name="id">The unique id of the object.</param>
         [JsonConstructor]
         public SharedObject(Guid id = default)
         {
diff --git a/Elements/src/Element.cs b/Elements/src/Element.cs
index 1f01b9288..3ecc866cb 100644
--- a/Elements/src/Element.cs
+++ b/Elements/src/Element.cs
@@ -94,7 +94,7 @@ protected virtual void RaisePropertyChanged([System.Runtime.CompilerServices.Cal
         /// <summary>
         /// An optional dictionary of mappings.
         /// </summary>
-        [JsonProperty("Mappings", Required = Required.Default, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("Mappings")]
         internal Dictionary<string, MappingBase> Mappings { get; set; } = null;
 
         /// <summary>
diff --git a/Elements/src/Geometry/Profile.cs b/Elements/src/Geometry/Profile.cs
index bc8b59040..dde35910a 100644
--- a/Elements/src/Geometry/Profile.cs
+++ b/Elements/src/Geometry/Profile.cs
@@ -24,7 +24,7 @@ public class Profile : Element, IEquatable<Profile>
         /// first double is the inner thickness, and the second double is the outer thickness.
         /// This is not guaranteed to have a value, and the thickness values may be 0.
         /// </summary>
-        [JsonProperty("EdgeThickness", Required = Required.Default)]
+        [JsonPropertyName("EdgeThickness")]
         private List<double[]> _edgeThickness { get; set; }
 
         /// <summary>
@@ -255,7 +255,7 @@ public Profile Union(Profile profile, double tolerance = Vector3.EPSILON)
         /// Set a uniform edge thickness for this profile.
         /// </summary>
         /// <param name="innerWidth">The inner thickness.</param>
-        /// <param name="outerWidth">The outer thickness.</param> 
+        /// <param name="outerWidth">The outer thickness.</param>
         public void SetEdgeThickness(double innerWidth, double outerWidth = 0)
         {
             var newThickness = new List<double[]>();
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index 889d7f998..a4c2f22fd 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -235,36 +235,38 @@ public IEnumerable<T> AllElementsAssignableFromType<T>() where T : Element
             return Elements.Values.Where(e => typeof(T).IsAssignableFrom(e.GetType())).Cast<T>();
         }
 
-        /// <summary>
-        /// Serialize the model to JSON.
-        /// </summary>
-        /// <param name="indent">Should the JSON be indented?</param>
-        /// <param name="gatherSubElements">Should sub-elements of elements be processed?</param>
-        /// <param name="updateElementsRepresentations">Indicates whether UpdateRepresentation should be called for all elements.</param>
-        public string ToJson(bool indent = false, bool gatherSubElements = true, bool updateElementsRepresentations = true)
-        {
-            var exportModel = CreateExportModel(gatherSubElements, updateElementsRepresentations);
-
-            return JsonConvert.SerializeObject(exportModel, indent ? Formatting.Indented : Formatting.None);
-        }
-
-        /// <summary>
-        /// Serialize the model to JSON and write to a stream.
-        /// </summary>
-        /// <param name="stream">The stream into which the JSON will be written.</param>
-        /// <param name="indent">Should the JSON be indented?</param>
-        /// <param name="gatherSubElements">Should sub-elements of elements be processed?</param>
-        /// <param name="updateElementsRepresentations">Indicates whether UpdateRepresentation should be called for all elements.</param>
-        public void ToJson(MemoryStream stream, bool indent = false, bool gatherSubElements = true, bool updateElementsRepresentations = true)
-        {
-            var exportModel = CreateExportModel(gatherSubElements, updateElementsRepresentations);
-
-            var json = JsonConvert.SerializeObject(exportModel, indent ? Formatting.Indented : Formatting.None);
-            using (var writer = new StreamWriter(stream))
-            {
-                writer.Write(json);
-            }
-        }
+        // TODO: REMOVE CODE BEFORE SYSTEM.TEXT.JSON UPDATE
+        // /// <summary>
+        // /// Serialize the model to JSON.
+        // /// </summary>
+        // /// <param name="indent">Should the JSON be indented?</param>
+        // /// <param name="gatherSubElements">Should sub-elements of elements be processed?</param>
+        // /// <param name="updateElementsRepresentations">Indicates whether UpdateRepresentation should be called for all elements.</param>
+        // public string ToJson(bool indent = false, bool gatherSubElements = true, bool updateElementsRepresentations = true)
+        // {
+        //     var exportModel = CreateExportModel(gatherSubElements, updateElementsRepresentations);
+
+        //     return JsonConvert.SerializeObject(exportModel, indent ? Formatting.Indented : Formatting.None);
+        // }
+
+        // TODO: REMOVE CODE BEFORE SYSTEM.TEXT.JSON UPDATE
+        // /// <summary>
+        // /// Serialize the model to JSON and write to a stream.
+        // /// </summary>
+        // /// <param name="stream">The stream into which the JSON will be written.</param>
+        // /// <param name="indent">Should the JSON be indented?</param>
+        // /// <param name="gatherSubElements">Should sub-elements of elements be processed?</param>
+        // /// <param name="updateElementsRepresentations">Indicates whether UpdateRepresentation should be called for all elements.</param>
+        // public void ToJson(MemoryStream stream, bool indent = false, bool gatherSubElements = true, bool updateElementsRepresentations = true)
+        // {
+        //     var exportModel = CreateExportModel(gatherSubElements, updateElementsRepresentations);
+
+        //     var json = JsonConvert.SerializeObject(exportModel, indent ? Formatting.Indented : Formatting.None);
+        //     using (var writer = new StreamWriter(stream))
+        //     {
+        //         writer.Write(json);
+        //     }
+        // }
 
         /// <summary>
         /// Serialize the model to JSON using default arguments.
@@ -297,7 +299,7 @@ public string ToJson(bool indent = false, bool gatherSubElements = true, bool up
             // TODO: Remove this excess model creation when the JSON serializer
             // supports recursive write out and all receivers are capable of
             // receiving updated JSON.
-            var exportModel = CreateExportModel(gatherSubElements);
+            var exportModel = CreateExportModel(gatherSubElements, updateElementsRepresentations);
 
             var serializerOptions = new JsonSerializerOptions
             {
@@ -585,37 +587,38 @@ public static Model GeometricElementModelFromJson(string json)
             }
         }
 
-        /// <summary>
-        /// Deserialize a model from JSON.
-        /// </summary>
-        /// <param name="json">The JSON representing the model.</param>
-        /// <param name="errors">A collection of deserialization errors.</param>
-        /// <param name="forceTypeReload">Option to force reloading the internal type cache. Use if you add types dynamically in your code.</param>
-        public static Model FromJson(string json, out List<string> errors, bool forceTypeReload = false)
-        {
-            // When user elements have been loaded into the app domain, they haven't always been
-            // loaded into the InheritanceConverter's Cache.  This does have some overhead,
-            // but is useful here, at the Model level, to ensure user types are available.
-            var deserializationErrors = new List<string>();
-            if (forceTypeReload)
-            {
-                JsonInheritanceConverter.RefreshAppDomainTypeCache(out var typeLoadErrors);
-                deserializationErrors.AddRange(typeLoadErrors);
-            }
-
-            var model = Newtonsoft.Json.JsonConvert.DeserializeObject<Model>(json, new JsonSerializerSettings()
-            {
-                Error = (sender, args) =>
-                {
-                    deserializationErrors.Add(args.ErrorContext.Error.Message);
-                    args.ErrorContext.Handled = true;
-                }
-            });
-            deserializationErrors.AddRange(JsonInheritanceConverter.GetAndClearDeserializationWarnings());
-            errors = deserializationErrors;
-            JsonInheritanceConverter.Elements.Clear();
-            return model;
-        }
+        // TODO: REMOVE CODE BEFORE SYSTEM.TEXT.JSON UPDATE
+        // /// <summary>
+        // /// Deserialize a model from JSON.
+        // /// </summary>
+        // /// <param name="json">The JSON representing the model.</param>
+        // /// <param name="errors">A collection of deserialization errors.</param>
+        // /// <param name="forceTypeReload">Option to force reloading the internal type cache. Use if you add types dynamically in your code.</param>
+        // public static Model FromJson(string json, out List<string> errors, bool forceTypeReload = false)
+        // {
+        //     // When user elements have been loaded into the app domain, they haven't always been
+        //     // loaded into the InheritanceConverter's Cache.  This does have some overhead,
+        //     // but is useful here, at the Model level, to ensure user types are available.
+        //     var deserializationErrors = new List<string>();
+        //     if (forceTypeReload)
+        //     {
+        //         JsonInheritanceConverter.RefreshAppDomainTypeCache(out var typeLoadErrors);
+        //         deserializationErrors.AddRange(typeLoadErrors);
+        //     }
+
+        //     var model = Newtonsoft.Json.JsonConvert.DeserializeObject<Model>(json, new JsonSerializerSettings()
+        //     {
+        //         Error = (sender, args) =>
+        //         {
+        //             deserializationErrors.Add(args.ErrorContext.Error.Message);
+        //             args.ErrorContext.Handled = true;
+        //         }
+        //     });
+        //     deserializationErrors.AddRange(JsonInheritanceConverter.GetAndClearDeserializationWarnings());
+        //     errors = deserializationErrors;
+        //     JsonInheritanceConverter.Elements.Clear();
+        //     return model;
+        // }
 
 
         /// <summary>
@@ -892,7 +895,7 @@ private static bool IsValidListType(Type t)
                || typeof(RepresentationInstance).IsAssignableFrom(t);
         }
 
-        private static Curve DeserializeCurve(JsonElement jsonCurve)
+        private static BoundedCurve DeserializeCurve(JsonElement jsonCurve)
         {
             var discriminator = jsonCurve.GetProperty("discriminator").GetString();
             switch (discriminator)
diff --git a/Elements/src/Serialization/JSON/SolidConverter.cs b/Elements/src/Serialization/JSON/SolidConverter.cs
index 06fb18bd3..a6684bf29 100644
--- a/Elements/src/Serialization/JSON/SolidConverter.cs
+++ b/Elements/src/Serialization/JSON/SolidConverter.cs
@@ -81,7 +81,7 @@ public override Solid Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
 
                 foreach (var vobj in root.GetProperty("vertices").EnumerateArray())
                 {
-                    var id = vobj.GetProperty("id").GetInt64();
+                    var id = (uint)vobj.GetProperty("id").GetInt64();
                     var x = vobj.GetProperty("x").GetDouble();
                     var y = vobj.GetProperty("y").GetDouble();
                     var z = vobj.GetProperty("z").GetDouble();
@@ -90,7 +90,7 @@ public override Solid Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
 
                 foreach (var face in root.GetProperty("faces").EnumerateArray())
                 {
-                    var id = face.GetProperty("id").GetInt64();
+                    var id = (uint)face.GetProperty("id").GetInt64();
 
                     var outer = new Loop();
 
diff --git a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
index 5befd259e..146dfdc2b 100644
--- a/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
+++ b/Elements/src/Spatial/AdaptiveGrid/AdaptiveGrid.cs
@@ -773,18 +773,18 @@ public AdaptiveGrid Clone()
             clone._edgeId = _edgeId;
             clone._vertexId = _vertexId;
 
-            clone._edges = _edges.ToDictionary(
+            clone.Edges = Edges.ToDictionary(
                 e => e.Key,
                 e => new Edge(e.Value.Id, e.Value.StartId, e.Value.EndId));
 
-            clone._vertices = _vertices.ToDictionary(
+            clone.Vertices = Vertices.ToDictionary(
                 e => e.Key,
                 e =>
                 {
                     var v = new Vertex(e.Value.Id, e.Value.Point);
                     foreach (var edge in e.Value.Edges)
                     {
-                        v.Edges.Add(clone._edges[edge.Id]);
+                        v.Edges.Add(clone.Edges[edge.Id]);
                     }
                     return v;
                 });
diff --git a/Elements/src/StructuralFraming.cs b/Elements/src/StructuralFraming.cs
index 5453653a7..995327586 100644
--- a/Elements/src/StructuralFraming.cs
+++ b/Elements/src/StructuralFraming.cs
@@ -82,11 +82,6 @@ public StructuralFraming(BoundedCurve curve,
             this.UpdateRepresentations();
         }
 
-        /// <summary>
-        /// Construct a framing element.
-        /// </summary>
-        public StructuralFraming() { }
-
         private void SetProperties(BoundedCurve curve,
                                    Profile profile,
                                    double startSetback,
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index 323c83d39..03173e3a7 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -76,19 +76,19 @@ public void UnknownTypesConvertToBaseElementDuringDeserialization()
         {
             // We've put in an Elements.Baz with nothing but a discriminator.
             var modelStr = "{\"Transform\":{\"Matrix\":{\"Components\":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},\"Elements\":{\"c6d1dc68-f800-47c1-9190-745b525ad569\":{\"discriminator\":\"Elements.Baz\"}, \"37f161d6-a892-4588-ad65-457b04b97236\":{\"discriminator\":\"Elements.Geometry.Profiles.WideFlangeProfile\",\"d\":1.1176,\"tw\":0.025908,\"bf\":0.4064,\"tf\":0.044958,\"Perimeter\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":-0.2032,\"Y\":0.5588,\"Z\":0.0},{\"X\":-0.2032,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":-0.012954,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":-0.012954,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":-0.2032,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":-0.2032,\"Y\":-0.5588,\"Z\":0.0},{\"X\":0.2032,\"Y\":-0.5588,\"Z\":0.0},{\"X\":0.2032,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":0.012954,\"Y\":-0.51384199999999991,\"Z\":0.0},{\"X\":0.012954,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":0.2032,\"Y\":0.51384199999999991,\"Z\":0.0},{\"X\":0.2032,\"Y\":0.5588,\"Z\":0.0}]},\"Voids\":null,\"Id\":\"37f161d6-a892-4588-ad65-457b04b97236\",\"Name\":\"W44x335\"},\"6b77d69a-204e-40f9-bc1f-ed84683e64c6\":{\"discriminator\":\"Elements.Material\",\"Color\":{\"Red\":0.60000002384185791,\"Green\":0.5,\"Blue\":0.5,\"Alpha\":1.0},\"SpecularFactor\":0.0,\"GlossinessFactor\":0.0,\"Id\":\"6b77d69a-204e-40f9-bc1f-ed84683e64c6\",\"Name\":\"steel\"},\"fd35bd2c-0108-47df-8e6d-42cc43e4eed0\":{\"discriminator\":\"Elements.Foo\",\"Curve\":{\"discriminator\":\"Elements.Geometry.Arc\",\"Center\":{\"X\":0.0,\"Y\":0.0,\"Z\":0.0},\"Radius\":2.0,\"StartAngle\":0.0,\"EndAngle\":90.0},\"StartSetback\":0.25,\"EndSetback\":0.25,\"Profile\":\"37f161d6-a892-4588-ad65-457b04b97236\",\"Transform\":{\"Matrix\":{\"Components\":[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0]}},\"Material\":\"6b77d69a-204e-40f9-bc1f-ed84683e64c6\",\"Representation\":{\"SolidOperations\":[{\"discriminator\":\"Elements.Geometry.Solids.Sweep\",\"Profile\":\"37f161d6-a892-4588-ad65-457b04b97236\",\"Curve\":{\"discriminator\":\"Elements.Geometry.Arc\",\"Center\":{\"X\":0.0,\"Y\":0.0,\"Z\":0.0},\"Radius\":2.0,\"StartAngle\":0.0,\"EndAngle\":90.0},\"StartSetback\":0.25,\"EndSetback\":0.25,\"Rotation\":0.0,\"IsVoid\":false}]},\"Id\":\"fd35bd2c-0108-47df-8e6d-42cc43e4eed0\",\"Name\":null}}}";
-            var model = Model.FromJson(modelStr, out var errors);
+            var model = Model.FromJson(modelStr);
 
-            foreach (var e in errors)
-            {
-                this._output.WriteLine(e);
-            }
+            // foreach (var e in errors)
+            // {
+            //     this._output.WriteLine(e);
+            // }
 
             // We expect three geometric elements,
             // and one base element (Elements.Baz)
             Assert.Equal(4, model.Elements.Count);
             bool containsBaz = model.Elements.Select(x => x.Value.AdditionalProperties["discriminator"]).Contains("Elements.Baz");
             Assert.True(containsBaz);
-            Assert.Single(errors);
+            // Assert.Single(errors);
         }
 
         /// <summary>
@@ -171,8 +171,8 @@ public void SaveMappingDictionaryWithoutRepeatingMappings()
 
             var model = new Model(new List<Element> { inst1, inst2 });
             var json = model.ToJson(true);
-            var newModel = Model.FromJson(json, out var errors);
-            Assert.Empty(errors);
+            var newModel = Model.FromJson(json);
+            // Assert.Empty(errors);
 
             //Check that only a single mapping was serialized.
             var m = System.Text.RegularExpressions.Regex.Matches(json, @"""discriminator"":\s*""Elements.Tests.TestMapping""");
diff --git a/Elements/test/PolygonTests.cs b/Elements/test/PolygonTests.cs
index a43a6c1f0..d0dbc5ab9 100644
--- a/Elements/test/PolygonTests.cs
+++ b/Elements/test/PolygonTests.cs
@@ -2306,7 +2306,7 @@ public void TrimSkyPlanePolygon1()
         {
             Name = nameof(TrimSkyPlanePolygon1);
             var json = "{\"Item1\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":5.456602446962343,\"Y\":-0.9024812458451947,\"Z\":60.0},{\"X\":22.56585182362492,\"Y\":32.63913758323735,\"Z\":60.0},{\"X\":12.232537580045737,\"Y\":37.91005939478421,\"Z\":31.000000000000313},{\"X\":-4.876711796617052,\"Y\":4.3684405657018885,\"Z\":30.9999999999996}]},\"Item2\":{\"Origin\":{\"X\":18.54496511754798,\"Y\":34.69015228590052,\"Z\":31.000000000000266},\"Normal\":{\"X\":0.4218903484051781,\"Y\":0.8270897771341386,\"Z\":0.3713906763541038}}}";
-            var items = JsonConvert.DeserializeObject<(Polygon, Plane)>(json);
+            var items = JsonSerializer.Deserialize<(Polygon, Plane)>(json);
             var trimmed = items.Item1.Trimmed(items.Item2, true);
             Assert.Single(trimmed);
             Model.AddElement(new Panel(trimmed[0]));
@@ -2319,7 +2319,7 @@ public void TrimSkyPlanePolygon2()
         {
             Name = nameof(TrimSkyPlanePolygon2);
             var json = "{\"Item1\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":14.11044881100593,\"Y\":-5.316723034955274,\"Z\":60.0},{\"X\":24.445333749146343,\"Y\":-10.58844604232641,\"Z\":30.999999999999876},{\"X\":40.96973706172442,\"Y\":23.25149700325788,\"Z\":30.999999999999172},{\"X\":30.63485212358372,\"Y\":28.523220010629068,\"Z\":60.0}]},\"Item2\":{\"Origin\":{\"X\":18.54496511754798,\"Y\":34.69015228590052,\"Z\":31.000000000000266},\"Normal\":{\"X\":0.4218903484051781,\"Y\":0.8270897771341386,\"Z\":0.3713906763541038}}}";
-            var items = JsonConvert.DeserializeObject<(Polygon, Plane)>(json);
+            var items = JsonSerializer.Deserialize<(Polygon, Plane)>(json);
             var trimmed = items.Item1.Trimmed(items.Item2, true);
             Assert.Single(trimmed);
             Model.AddElement(new Panel(trimmed[0]));
@@ -2332,7 +2332,7 @@ public void TrimSkyPlanePolygon3()
         {
             Name = nameof(TrimSkyPlanePolygon3);
             var json = "{\"Item1\":{\"discriminator\":\"Elements.Geometry.Polygon\",\"Vertices\":[{\"X\":23.128761583107114,\"Y\":-13.28462370583442,\"Z\":30.99999999999992},{\"X\":23.12876158310712,\"Y\":-13.284623705834392,\"Z\":-7.588341022412967E-15},{\"X\":40.969737061724466,\"Y\":23.251497003257874,\"Z\":-4.6993153936072985E-15},{\"X\":40.96973706172446,\"Y\":23.251497003257846,\"Z\":30.99999999999918}]},\"Item2\":{\"Origin\":{\"X\":18.54496511754798,\"Y\":34.69015228590052,\"Z\":31.000000000000266},\"Normal\":{\"X\":0.4218903484051781,\"Y\":0.8270897771341386,\"Z\":0.3713906763541038}}}";
-            var items = JsonConvert.DeserializeObject<(Polygon, Plane)>(json);
+            var items = JsonSerializer.Deserialize<(Polygon, Plane)>(json);
             var trimmed = items.Item1.Trimmed(items.Item2, true);
             Assert.Null(trimmed);
             Model.AddElement(new Panel(Polygon.Rectangle(100, 100).TransformedPolygon(new Transform(items.Item2.Origin, items.Item2.Normal)), BuiltInMaterials.Glass));
diff --git a/Elements/test/SolidTests.cs b/Elements/test/SolidTests.cs
index 0167ce57e..e60b4705f 100644
--- a/Elements/test/SolidTests.cs
+++ b/Elements/test/SolidTests.cs
@@ -519,7 +519,7 @@ public void SweepWithSetbacksRegressionTest()
         {
             Name = nameof(SweepWithSetbacksRegressionTest);
             Polygon crossSection = Polygon.Rectangle(0.25, 0.25);
-            
+
             Polyline curve = new(new List<Vector3>
             {
                     new Vector3(x: 20.0, y: 15.0, z:0.0),
@@ -528,7 +528,7 @@ public void SweepWithSetbacksRegressionTest()
                     new Vector3(x: 19.5, y: 14.5, z:1.5),
             }
             );
-            
+
             var sweep = new Sweep(
                 new Profile(crossSection),
                 curve,
@@ -780,7 +780,7 @@ public void TessellationHasCorrectNumberOfVertices()
         [Fact]
         public void TesselationOfModelThatProducesEmptyTrianles()
         {
-            var model = Model.FromJson(File.ReadAllText("../../../models/Geometry/WallFromBasicModel.json"), out var errors);
+            var model = Model.FromJson(File.ReadAllText("../../../models/Geometry/WallFromBasicModel.json"));
             var wall = model.AllElementsOfType<WallByProfile>().First();
             wall.UpdateRepresentations();
             wall.UpdateBoundsAndComputeSolid();

From f6f977b0d1d3a1b7a40fdbd782db992bbfd1adab Mon Sep 17 00:00:00 2001
From: Anthonie Kramer <anthoniekramer@gmail.com>
Date: Wed, 6 Dec 2023 10:31:40 -0800
Subject: [PATCH 147/150] built again removed more newtonsoft

---
 .../src/CatalogGenerator.cs                   |  5 +-
 Elements.CodeGeneration/src/TypeGenerator.cs  |  4 +-
 Elements.MEP/src/Fittings/Assembly.cs         |  7 ++-
 Elements.MEP/src/Fittings/Cross.cs            |  6 +-
 Elements.MEP/src/Fittings/ExpansionSocket.cs  |  3 +-
 Elements.MEP/src/Fittings/Fitting.cs          |  1 -
 .../src/Fittings/FittingTree.Builder.cs       |  2 +-
 .../src/Fittings/FittingTree.Visualization.cs |  1 -
 Elements.MEP/src/Fittings/FittingTree.cs      | 17 +++---
 Elements.MEP/src/Fittings/IComponent.cs       |  4 +-
 .../src/Fittings/InspectionOpening.cs         |  3 +-
 Elements.MEP/src/Fittings/Port.cs             |  2 +-
 Elements.MEP/src/Fittings/StraightSegment.cs  |  1 -
 Elements.MEP/src/Flow/Connection.cs           |  1 -
 Elements.MEP/src/Flow/ConnectionLocator.cs    |  6 +-
 Elements.MEP/src/MergeGroup.cs                |  7 ++-
 Elements/src/Annotations/Message.cs           | 12 ++--
 Elements/src/BIM/Door/Door.cs                 | 16 +++---
 .../src/CoreModels/RepresentationInstance.cs  |  4 +-
 Elements/src/CoreModels/SharedObject.cs       |  5 +-
 Elements/src/Elements.csproj                  |  2 +-
 Elements/src/Geometry/Bezier.cs               | 14 ++---
 Elements/src/Geometry/BoundedCurve.cs         |  4 +-
 Elements/src/Geometry/Ellipse.cs              | 28 ++++-----
 Elements/src/Geometry/EllipticalArc.cs        | 13 +++--
 Elements/src/Geometry/IndexedPolycurve.cs     | 20 ++++---
 Elements/src/Geometry/ThickenedPolyline.cs    | 10 ++--
 Elements/src/Geometry/TrimmedCurve.cs         |  4 +-
 Elements/src/Model.cs                         |  1 +
 Elements/src/ModelCurve.cs                    |  1 +
 .../Representations/SolidRepresentation.cs    |  7 ++-
 .../src/Serialization/JSON/ModelConverter.cs  |  3 +-
 .../JSON/VectorListToByteArrayConverter.cs    | 32 ++++-------
 Elements/src/Snapping/SnappingPoints.cs       |  6 +-
 Elements/test/BezierTests.cs                  |  4 +-
 Elements/test/Elements.Tests.csproj           |  2 +-
 Elements/test/GltfTests.cs                    | 57 ++++++++++++-------
 Elements/test/IndexedPolyCurveTests.cs        |  8 +--
 Elements/test/ModelTests.cs                   | 48 +++++++++++-----
 Elements/test/NetworkTests.cs                 | 16 +++---
 Elements/test/VectorTests.cs                  |  4 +-
 41 files changed, 219 insertions(+), 172 deletions(-)

diff --git a/Elements.CodeGeneration/src/CatalogGenerator.cs b/Elements.CodeGeneration/src/CatalogGenerator.cs
index 4823789d3..4dd4593db 100644
--- a/Elements.CodeGeneration/src/CatalogGenerator.cs
+++ b/Elements.CodeGeneration/src/CatalogGenerator.cs
@@ -9,6 +9,7 @@
 using System.Reflection;
 using Elements.Generate.StringUtils;
 using System.Globalization;
+using System.Text.Json;
 
 namespace Elements.Generate
 {
@@ -142,10 +143,10 @@ private static ContentCatalog DeduplicateContentNames(ContentCatalog catalog)
                             codeToAdd = $"new Vector3({v.X},{v.Y},{v.Z})";
                             break;
                         case IList<Symbol> symbols:
-                            codeToAdd = $"JsonConvert.DeserializeObject<List<Symbol>>(\"{System.Web.HttpUtility.JavaScriptStringEncode(Newtonsoft.Json.JsonConvert.SerializeObject(symbols))}\")";
+                            codeToAdd = $"JsonSerializer.Deserialize<List<Symbol>>(\"{System.Web.HttpUtility.JavaScriptStringEncode(JsonSerializer.Serialize(symbols))}\")";
                             break;
                         case Dictionary<string, object> dict:
-                            codeToAdd = "@\"" + Newtonsoft.Json.JsonConvert.SerializeObject(dict).Replace("\"", "\"\"") + "\"";
+                            codeToAdd = "@\"" + JsonSerializer.Serialize(dict).Replace("\"", "\"\"") + "\"";
                             break;
                         case Material material:
                             // new Material(material.Color,
diff --git a/Elements.CodeGeneration/src/TypeGenerator.cs b/Elements.CodeGeneration/src/TypeGenerator.cs
index 1107aa4e3..f2b8fd34c 100644
--- a/Elements.CodeGeneration/src/TypeGenerator.cs
+++ b/Elements.CodeGeneration/src/TypeGenerator.cs
@@ -628,7 +628,7 @@ private static CSharpCompilation GenerateCompilation(List<string> code, string c
 
             var assemblyPath = frameworkBuild ? @"C:\Windows\Microsoft.NET\Framework64\v4.0.30319" : Path.GetDirectoryName(typeof(object).Assembly.Location);
             var elementsAssemblyPath = Path.GetDirectoryName(typeof(Model).Assembly.Location);
-            var newtonSoftPath = Path.GetDirectoryName(typeof(JsonConverter).Assembly.Location);
+            var jsonConverterPath = Path.GetDirectoryName(typeof(JsonConverter).Assembly.Location);
 
             IEnumerable<MetadataReference> defaultReferences = new[]
             {
@@ -638,7 +638,7 @@ private static CSharpCompilation GenerateCompilation(List<string> code, string c
                 MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Runtime.dll")),
                 MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Runtime.Serialization.Primitives.dll")),
                 MetadataReference.CreateFromFile(Path.Combine(elementsAssemblyPath, "Hypar.Elements.dll")),
-                MetadataReference.CreateFromFile(Path.Combine(newtonSoftPath, "Newtonsoft.Json.dll"))
+                MetadataReference.CreateFromFile(Path.Combine(jsonConverterPath, "System.Text.Json.dll"))
             };
 
             // If we're building in a .net framework context, we need a different set of reference DLLs
diff --git a/Elements.MEP/src/Fittings/Assembly.cs b/Elements.MEP/src/Fittings/Assembly.cs
index b94ebae0d..190975873 100644
--- a/Elements.MEP/src/Fittings/Assembly.cs
+++ b/Elements.MEP/src/Fittings/Assembly.cs
@@ -4,7 +4,8 @@
 using Elements.Flow;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Fittings
 {
@@ -13,7 +14,7 @@ public partial class Assembly
         private PositionComparer _positionComparer;
         private double _positionTolerance;
 
-        [JsonProperty]
+        [JsonPropertyName("PositionTolerance")]
         public double PositionTolerance
         {
             get => _positionTolerance;
@@ -51,7 +52,7 @@ public override Port[] GetPorts()
         /// <summary>
         ///
         /// </summary>
-        [Newtonsoft.Json.JsonIgnore]
+        [JsonIgnore]
         public IEnumerable<ComponentBase> AllComponents
         {
             get
diff --git a/Elements.MEP/src/Fittings/Cross.cs b/Elements.MEP/src/Fittings/Cross.cs
index 40da39125..7bcd80be4 100644
--- a/Elements.MEP/src/Fittings/Cross.cs
+++ b/Elements.MEP/src/Fittings/Cross.cs
@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Runtime.CompilerServices;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
 
 namespace Elements.Fittings
 {
@@ -40,10 +40,10 @@ public CrossSettings()
 
     public partial class Cross
     {
-        [JsonProperty]
+        [JsonPropertyName("AngleTolerance")]
         public double AngleTolerance { get; set; }
 
-        [JsonProperty]
+        [JsonPropertyName("PositionTolerance")]
         public double PositionTolerance { get; set; }
 
         public Cross(Vector3 position, Vector3 trunkDirection, Vector3 directionA, Vector3 directionB, Vector3 directionC, CrossSettings crossSettings, Material material = null) :
diff --git a/Elements.MEP/src/Fittings/ExpansionSocket.cs b/Elements.MEP/src/Fittings/ExpansionSocket.cs
index b9fce2d4f..9a0e12ebb 100644
--- a/Elements.MEP/src/Fittings/ExpansionSocket.cs
+++ b/Elements.MEP/src/Fittings/ExpansionSocket.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 
@@ -28,7 +29,7 @@ public ExpansionSocket(Vector3 position,
             this.InsertionDepth = insertionDepth;
         }
 
-        [Newtonsoft.Json.JsonConstructor]
+        [JsonConstructor]
         public ExpansionSocket(double @insertionDepth,
                                Port @start,
                                Port @end,
diff --git a/Elements.MEP/src/Fittings/Fitting.cs b/Elements.MEP/src/Fittings/Fitting.cs
index 05052c0c9..1ea86acd6 100644
--- a/Elements.MEP/src/Fittings/Fitting.cs
+++ b/Elements.MEP/src/Fittings/Fitting.cs
@@ -3,7 +3,6 @@
 using Elements.Flow;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
 
 namespace Elements.Fittings
 {
diff --git a/Elements.MEP/src/Fittings/FittingTree.Builder.cs b/Elements.MEP/src/Fittings/FittingTree.Builder.cs
index 991293fac..14d1b5ac9 100644
--- a/Elements.MEP/src/Fittings/FittingTree.Builder.cs
+++ b/Elements.MEP/src/Fittings/FittingTree.Builder.cs
@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Runtime.CompilerServices;
+using System.Text.Json.Serialization;
 using Elements.Flow;
 using Elements.Geometry;
-using Newtonsoft.Json;
 
 [assembly: InternalsVisibleTo("Elements.MEP.Tests")]
 namespace Elements.Fittings
diff --git a/Elements.MEP/src/Fittings/FittingTree.Visualization.cs b/Elements.MEP/src/Fittings/FittingTree.Visualization.cs
index ca5b89850..7c1d34999 100644
--- a/Elements.MEP/src/Fittings/FittingTree.Visualization.cs
+++ b/Elements.MEP/src/Fittings/FittingTree.Visualization.cs
@@ -3,7 +3,6 @@
 using System.Linq;
 using System.Runtime.CompilerServices;
 using Elements.Flow;
-using Newtonsoft.Json;
 
 [assembly: InternalsVisibleTo("Elements.MEP.Tests")]
 namespace Elements.Fittings
diff --git a/Elements.MEP/src/Fittings/FittingTree.cs b/Elements.MEP/src/Fittings/FittingTree.cs
index daca3a819..9d7d6a072 100644
--- a/Elements.MEP/src/Fittings/FittingTree.cs
+++ b/Elements.MEP/src/Fittings/FittingTree.cs
@@ -3,6 +3,7 @@
 using System.ComponentModel;
 using System.Linq;
 using System.Text;
+using System.Text.Json.Serialization;
 using Elements.Annotations;
 using Elements.Flow;
 using Elements.Geometry;
@@ -18,7 +19,7 @@ public static FittingTree Create(FittingTreeRouting routing = null, double angle
                                    string.Empty,
                                    Guid.NewGuid(),
                                    string.Empty);
-            
+
             fittings._angleTolerance = angleTolerance;
             fittings._portsDistanceTolerance = portsDistanceTolerance;
             fittings._routing = routing ?? new FittingTreeRouting(null);
@@ -57,7 +58,7 @@ public void AddConnections(IEnumerable<Fitting> connections)
                 }
             }
         }
-        
+
         /// <summary>
         /// Propagates flow
         /// </summary>
@@ -833,7 +834,7 @@ private bool TrunkSideReducerShouldBePreserved(IReducer nextReducer, double newD
             return false;
         }
 
-        [Newtonsoft.Json.JsonIgnore]
+        [JsonIgnore]
         public IEnumerable<ComponentBase> AllComponents
         {
             get
@@ -845,7 +846,7 @@ public IEnumerable<ComponentBase> AllComponents
         /// <summary>
         /// The components of the system with the assemblies expanded.
         /// </summary>
-        [Newtonsoft.Json.JsonIgnore]
+        [JsonIgnore]
         public IEnumerable<ComponentBase> ExpandedComponents
         {
             get
@@ -881,7 +882,7 @@ internal List<SectionLabelingError> AssignFlowIdsToComponents(string sectionRefe
                 }
                 if (componentGroup.Count() != orderedComponentList.Count())
                 {
-                    labelingErrors.Add(new SectionLabelingError(componentGroup.Key, 
+                    labelingErrors.Add(new SectionLabelingError(componentGroup.Key,
                         Name,
                         "Lost or gained items while ordering the components, " +
                         "previous and next are probably set incorrectly, or a SectionKey is not assigned correctly."));
@@ -1070,7 +1071,7 @@ public List<Message> CheckConnectivities()
                 {
                     var leftEndType = left.ConnectionType.EndType;
                     var rightEndType = right.ConnectionType.EndType;
-                    if (leftEndType == PortConnectionTypeEndType.None || 
+                    if (leftEndType == PortConnectionTypeEndType.None ||
                         rightEndType == PortConnectionTypeEndType.None)
                     {
                         if (leftEndType != rightEndType)
@@ -1110,7 +1111,7 @@ public List<Message> CheckConnectivities()
 
             if (message.Length > 0)
             {
-                return PortConnectivityMessage(left, right,  message.ToString());
+                return PortConnectivityMessage(left, right, message.ToString());
             }
             return null;
         }
@@ -1338,7 +1339,7 @@ private static bool TryGetOrderedComponents(IEnumerable<ComponentBase> component
 
             orderedComponentList = new LinkedList<ComponentBase>();
             orderedComponentList.AddFirst(componentGroup.First());
-            
+
             var visited = new HashSet<ComponentBase>();
             while (true)
             {
diff --git a/Elements.MEP/src/Fittings/IComponent.cs b/Elements.MEP/src/Fittings/IComponent.cs
index 74a2c76a0..9bb93dc73 100644
--- a/Elements.MEP/src/Fittings/IComponent.cs
+++ b/Elements.MEP/src/Fittings/IComponent.cs
@@ -1,8 +1,8 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
-using Newtonsoft.Json;
 
 namespace Elements.Fittings
 {
@@ -34,7 +34,7 @@ public abstract partial class ComponentBase : IComponent
         /// <summary>
         /// The pressure calculation data for this component.
         /// </summary>
-        [Newtonsoft.Json.JsonProperty("Pressure Calculations", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Pressure Calculations")]
         public PressureCalculationBase PressureCalculations { get; set; }
 
         /// <summary>
diff --git a/Elements.MEP/src/Fittings/InspectionOpening.cs b/Elements.MEP/src/Fittings/InspectionOpening.cs
index 79e6424ac..0504768d0 100644
--- a/Elements.MEP/src/Fittings/InspectionOpening.cs
+++ b/Elements.MEP/src/Fittings/InspectionOpening.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 
@@ -29,7 +30,7 @@ public InspectionOpening(Vector3 position,
             this.TopLength = topLength;
         }
 
-        [Newtonsoft.Json.JsonConstructor]
+        [JsonConstructor]
         public InspectionOpening(Vector3 @sideDirection,
                                  double @topLength,
                                  Port @start,
diff --git a/Elements.MEP/src/Fittings/Port.cs b/Elements.MEP/src/Fittings/Port.cs
index e85a8cbcb..861ec16df 100644
--- a/Elements.MEP/src/Fittings/Port.cs
+++ b/Elements.MEP/src/Fittings/Port.cs
@@ -1,8 +1,8 @@
 using System;
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
 
 namespace Elements.Fittings
 {
diff --git a/Elements.MEP/src/Fittings/StraightSegment.cs b/Elements.MEP/src/Fittings/StraightSegment.cs
index ab6bb4410..d49ee924b 100644
--- a/Elements.MEP/src/Fittings/StraightSegment.cs
+++ b/Elements.MEP/src/Fittings/StraightSegment.cs
@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
 
 namespace Elements.Fittings
 {
diff --git a/Elements.MEP/src/Flow/Connection.cs b/Elements.MEP/src/Flow/Connection.cs
index 46dad46b6..579f45576 100644
--- a/Elements.MEP/src/Flow/Connection.cs
+++ b/Elements.MEP/src/Flow/Connection.cs
@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json;
 
 namespace Elements.Flow
 {
diff --git a/Elements.MEP/src/Flow/ConnectionLocator.cs b/Elements.MEP/src/Flow/ConnectionLocator.cs
index 2152f8c4a..b5c4b9fed 100644
--- a/Elements.MEP/src/Flow/ConnectionLocator.cs
+++ b/Elements.MEP/src/Flow/ConnectionLocator.cs
@@ -1,12 +1,12 @@
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
-using Newtonsoft.Json;
 
 namespace Elements.Flow
 {
     public partial class ConnectionLocator
     {
-        [JsonProperty("Network Reference", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Network Reference")]
         public string NetworkReference { get; set; }
 
         public Line Line { get; set; }
@@ -33,7 +33,7 @@ public bool IsAlmostEqualTo(ConnectionLocator other, double tolerance = 1E-5)
             return NetworkReference == other.NetworkReference
                    && Line.Direction().IsParallelTo(other.Line.Direction())
                    && Line.IsAlmostEqualTo(other.Line, true, tolerance)
-                   && Purpose== other.Purpose;
+                   && Purpose == other.Purpose;
         }
 
         public override string ToString()
diff --git a/Elements.MEP/src/MergeGroup.cs b/Elements.MEP/src/MergeGroup.cs
index ba9043b81..592d17166 100644
--- a/Elements.MEP/src/MergeGroup.cs
+++ b/Elements.MEP/src/MergeGroup.cs
@@ -1,6 +1,7 @@
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 using Polygon = Elements.Geometry.Polygon;
 
 namespace Elements
@@ -8,7 +9,7 @@ namespace Elements
     /// <summary>A list of elements that are grouped together.</summary>
     public partial class MergeGroup : GeometricElement
     {
-        [Newtonsoft.Json.JsonConstructor]
+        [JsonConstructor]
         public MergeGroup(IList<string> @elementIds, Polygon @boundary, Transform @transform = null, Material @material = null, Representation @representation = null, bool @isElementDefinition = false, System.Guid @id = default, string @name = null)
             : base(transform, material, representation, isElementDefinition, id, name)
         {
@@ -17,11 +18,11 @@ public MergeGroup(IList<string> @elementIds, Polygon @boundary, Transform @trans
         }
 
         /// <summary>The guids of the elements that are in this group.</summary>
-        [Newtonsoft.Json.JsonProperty("ElementIds", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("ElementIds")]
         public IList<string> ElementIds { get; set; }
 
         /// <summary>The boundary of the space.</summary>
-        [Newtonsoft.Json.JsonProperty("Boundary", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Boundary")]
         public Polygon Boundary { get; set; }
 
         public override void UpdateRepresentations()
diff --git a/Elements/src/Annotations/Message.cs b/Elements/src/Annotations/Message.cs
index 1db46173a..7b039c4e1 100644
--- a/Elements/src/Annotations/Message.cs
+++ b/Elements/src/Annotations/Message.cs
@@ -1,5 +1,5 @@
+using System.Text.Json.Serialization;
 using Elements.Geometry;
-using Newtonsoft.Json;
 
 namespace Elements.Annotations
 {
@@ -40,20 +40,20 @@ public Message()
         }
 
         /// <summary>A short message for the user. For a more detailed message, use MessageText.</summary>
-        [JsonProperty("ShortMessage", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("ShortMessage")]
         public string ShortMessage { get; set; }
 
         /// <summary>A warning message for the user.</summary>
-        [JsonProperty("Message", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Message")]
         public string MessageText { get; set; }
 
         /// <summary>Developer specific message about the failure in the code.</summary>
-        [JsonProperty("Stack Trace", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
+        [JsonPropertyName("Stack Trace")]
         public string StackTrace { get; set; }
 
         /// <summary>Developer specific message about the failure in the code.</summary>
-        [JsonProperty("Severity", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
-        [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
+        [JsonPropertyName("Severity")]
+        [JsonConverter(typeof(JsonStringEnumConverter))]
         public MessageSeverity Severity { get; set; }
     }
 }
\ No newline at end of file
diff --git a/Elements/src/BIM/Door/Door.cs b/Elements/src/BIM/Door/Door.cs
index f16afb685..c3541d0ba 100644
--- a/Elements/src/BIM/Door/Door.cs
+++ b/Elements/src/BIM/Door/Door.cs
@@ -2,9 +2,9 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
-using Newtonsoft.Json;
 using Elements.Geometry.Solids;
 using System.Linq;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
@@ -14,21 +14,21 @@ public class Door : GeometricElement
                 /// <summary>The material to be used on the door frame</summary>
                 public Material FrameMaterial { get; set; } = new Material(Colors.Gray, 0.5, 0.25, false, null, false, false, null, false, null, 0, false, default, "Silver Frame");
                 /// <summary>The opening type of the door that should be placed</summary>
-                [JsonProperty("Door Opening Type")]
-                [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
+                [JsonPropertyName("Door Opening Type")]
+                [JsonConverter(typeof(JsonStringEnumConverter))]
                 public DoorOpeningType OpeningType { get; private set; }
                 /// <summary>The opening side of the door that should be placed</summary>
-                [JsonProperty("Door Opening Side")]
-                [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]
+                [JsonPropertyName("Door Opening Side")]
+                [JsonConverter(typeof(JsonStringEnumConverter))]
                 public DoorOpeningSide OpeningSide { get; private set; }
                 /// <summary>Width of a door without a frame.</summary>
-                [JsonProperty("Door Width")]
+                [JsonPropertyName("Door Width")]
                 public double DoorWidth { get; set; }
                 /// <summary>Height of a door without a frame.</summary>
-                [JsonProperty("Door Height")]
+                [JsonPropertyName("Door Height")]
                 public double DoorHeight { get; set; }
                 /// <summary>Type of door (Glass or Solid).</summary>
-                [JsonProperty("Door Type")]
+                [JsonPropertyName("Door Type")]
                 public string DoorType { get; set; }
                 /// <summary>Default door thickness.</summary>
                 public static double DEFAULT_DOOR_THICKNESS = Units.InchesToMeters(2.0);
diff --git a/Elements/src/CoreModels/RepresentationInstance.cs b/Elements/src/CoreModels/RepresentationInstance.cs
index 29914c2e8..54ec62a0b 100644
--- a/Elements/src/CoreModels/RepresentationInstance.cs
+++ b/Elements/src/CoreModels/RepresentationInstance.cs
@@ -1,6 +1,6 @@
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 using Elements.Interfaces;
-using Newtonsoft.Json;
 
 namespace Elements
 {
@@ -43,7 +43,7 @@ public RepresentationInstance(ElementRepresentation representation, Material mat
         /// <summary>
         /// The representation's material.
         /// </summary>
-        [JsonProperty("Material", Required = Required.AllowNull)]
+        [JsonPropertyName("Material")]
         public Material Material { get; set; }
 
         /// <summary>
diff --git a/Elements/src/CoreModels/SharedObject.cs b/Elements/src/CoreModels/SharedObject.cs
index b9614a4d8..7c2b0eb9a 100644
--- a/Elements/src/CoreModels/SharedObject.cs
+++ b/Elements/src/CoreModels/SharedObject.cs
@@ -1,5 +1,5 @@
 using System;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements
 {
@@ -28,7 +28,8 @@ public SharedObject(Guid id = default)
         /// <summary>
         /// A unique object id.
         /// </summary>
-        [JsonProperty("Id", Required = Required.Always)]
+        [JsonPropertyName("Id")]
+        [JsonInclude]
         [System.ComponentModel.DataAnnotations.Required(AllowEmptyStrings = true)]
         public Guid Id
         {
diff --git a/Elements/src/Elements.csproj b/Elements/src/Elements.csproj
index e0c462727..ebf72678a 100644
--- a/Elements/src/Elements.csproj
+++ b/Elements/src/Elements.csproj
@@ -21,7 +21,7 @@
     <PackageReference Include="SixLabors.ImageSharp" Version="2.1.3" />
     <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta15" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="4.6.0" />
-    <PackageReference Include="System.Text.Json" Version="6.0.2"/>
+    <PackageReference Include="System.Text.Json" Version="8.0.0"/>
     <PackageReference Include="Unofficial.LibTessDotNet" Version="2.0.0"/>
     <PackageReference Include="Macross.Json.Extensions" Version="3.0.0"/>
   </ItemGroup>
diff --git a/Elements/src/Geometry/Bezier.cs b/Elements/src/Geometry/Bezier.cs
index c9fbad96a..f71573d47 100644
--- a/Elements/src/Geometry/Bezier.cs
+++ b/Elements/src/Geometry/Bezier.cs
@@ -1,8 +1,8 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 using Elements.Geometry.Interfaces;
-using Newtonsoft.Json;
 
 namespace Elements.Geometry
 {
@@ -11,7 +11,7 @@ namespace Elements.Geometry
     // http://webhome.cs.uvic.ca/~blob/courses/305/notes/pdf/ref-frames.pdf
 
     /// <summary>
-    /// The frame type to be used for operations requiring 
+    /// The frame type to be used for operations requiring
     /// a moving frame around the curve.
     /// </summary>
     public enum FrameType
@@ -459,7 +459,7 @@ public bool Intersects(Ellipse ellipse, out List<Vector3> results)
             // Bezier curve always inside it's bounding box.
             // Rough check if curve is too far away.
             var boxCenter = box.Center();
-            if (ellipse.Center.DistanceTo(boxCenter) > 
+            if (ellipse.Center.DistanceTo(boxCenter) >
                 Math.Max(ellipse.MajorAxis, ellipse.MinorAxis) + (box.Max - boxCenter).Length())
             {
                 results = new List<Vector3>();
@@ -509,7 +509,7 @@ public bool Intersects(Bezier other, out List<Vector3> results)
 
             Intersects(other,
                        (box, Domain),
-                       (otherBox, other.Domain), 
+                       (otherBox, other.Domain),
                        leftCache,
                        rightCache,
                        ref results);
@@ -566,7 +566,7 @@ private void Intersects(Bezier other,
                 Intersects(other, left, loRight, leftCache, rightCache, ref results);
                 Intersects(other, left, hiRight, leftCache, rightCache, ref results);
             }
-            else if (!rightSplit) 
+            else if (!rightSplit)
             {
                 Intersects(other, loLeft, right, leftCache, rightCache, ref results);
                 Intersects(other, hiLeft, right, leftCache, rightCache, ref results);
@@ -589,7 +589,7 @@ private bool SplitCurveBox((BBox3 Box, Domain1d Domain) def,
             high = (default, default);
 
             // If curve bounding box is tolerance size - it's considered as intersection.
-            // Otherwise calculate new boxes of two halves of the curve. 
+            // Otherwise calculate new boxes of two halves of the curve.
             var epsilon2 = Vector3.EPSILON * Vector3.EPSILON;
             var leftConvergent = (def.Box.Max - def.Box.Min).LengthSquared() < epsilon2 * 2;
             if (leftConvergent)
@@ -598,7 +598,7 @@ private bool SplitCurveBox((BBox3 Box, Domain1d Domain) def,
             }
 
             // If curve bounding box is tolerance size - it's considered as intersection.
-            // Otherwise calculate new boxes of two halves of the curve. 
+            // Otherwise calculate new boxes of two halves of the curve.
             low = CurveBoxHalf(def, cache, true);
             high = CurveBoxHalf(def, cache, false);
             return true;
diff --git a/Elements/src/Geometry/BoundedCurve.cs b/Elements/src/Geometry/BoundedCurve.cs
index c8e79b858..d4db5626b 100644
--- a/Elements/src/Geometry/BoundedCurve.cs
+++ b/Elements/src/Geometry/BoundedCurve.cs
@@ -1,13 +1,15 @@
 using System;
 using System.Collections.Generic;
 using Elements.Geometry.Interfaces;
-using Newtonsoft.Json;
+using Elements.Serialization.JSON;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
     /// <summary>
     /// A bounded curve.
     /// </summary>
+    [JsonConverter(typeof(ElementConverter<BoundedCurve>))]
     public abstract class BoundedCurve : Curve, IBoundedCurve
     {
         /// <summary>
diff --git a/Elements/src/Geometry/Ellipse.cs b/Elements/src/Geometry/Ellipse.cs
index 57023e357..9c96029e4 100644
--- a/Elements/src/Geometry/Ellipse.cs
+++ b/Elements/src/Geometry/Ellipse.cs
@@ -1,14 +1,14 @@
 using System;
 using System.Collections.Generic;
 using Elements.Geometry.Interfaces;
-using Newtonsoft.Json;
 using System.Linq;
 using SixLabors.ImageSharp.ColorSpaces;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
     /// <summary>
-    /// An ellipse. 
+    /// An ellipse.
     /// Parameterization of the curve is 0 -> 2PI.
     /// </summary>
     public class Ellipse : Curve, IConic
@@ -139,14 +139,14 @@ public bool ParameterAt(Vector3 pt, out double t)
                 t = ParameterAtUntransformed(local);
                 return true;
             }
-        
+
             t = 0;
             return false;
         }
-        
+
         private double ParameterAtUntransformed(Vector3 pt)
         {
-            return Math.Atan2(pt.Y / MinorAxis , pt.X / MajorAxis);
+            return Math.Atan2(pt.Y / MinorAxis, pt.X / MajorAxis);
         }
 
         private bool OnEllipseUntransformed(Vector3 pt)
@@ -185,7 +185,7 @@ public override Transform TransformAt(double u)
 
             // Normals will naturally flip when u > pi.
             // To ensure consistent direction, flip the
-            // normal if it's reversed with regards to 
+            // normal if it's reversed with regards to
             if (refVector.Dot(x) < 0)
             {
                 x = x.Negate();
@@ -259,7 +259,7 @@ public bool Intersects(InfiniteLine line, out List<Vector3> results)
             bool lineOnPlane = line.Origin.DistanceTo(ellipsePlane).ApproximatelyEquals(0) &&
                 line.Direction.Dot(ellipsePlane.Normal).ApproximatelyEquals(0);
 
-            // If the line is on the plane, just check if it intersects ellipse plane 
+            // If the line is on the plane, just check if it intersects ellipse plane
             // and if the intersection point is on the ellipse.
             if (!lineOnPlane)
             {
@@ -274,7 +274,7 @@ public bool Intersects(InfiniteLine line, out List<Vector3> results)
                 }
                 return results.Any();
             }
-            
+
             // When line and ellipse share a plane their intersections can be solved as
             // quadratic equation since ellipse formula quadratic, line formula linear.
             // There are up to two intersections possible with is also aligned with the amount of roots.
@@ -315,7 +315,7 @@ public bool Intersects(Circle circle, out List<Vector3> results)
             Plane planeA = new Plane(Center, Normal);
             Plane planeB = new Plane(circle.Center, circle.Normal);
 
-            // Check if circle and ellipse are on the same plane. 
+            // Check if circle and ellipse are on the same plane.
             if (Normal.IsParallelTo(circle.Normal, Vector3.EPSILON * Vector3.EPSILON) &&
                 circle.Center.DistanceTo(planeA).ApproximatelyEquals(0))
             {
@@ -335,7 +335,7 @@ public bool Intersects(Circle circle, out List<Vector3> results)
 
                 var div = (int)Math.Round(this.Circumference() / BoundedCurve.DefaultMinimumChordLength);
 
-                // Iteratively, find points in ellipse with distance to circle equal its radius. 
+                // Iteratively, find points in ellipse with distance to circle equal its radius.
                 var localCenter = Transform.Inverted().OfPoint(circle.Center);
                 var roots = Equations.SolveIterative(0, Math.PI * 2, div,
                     new Func<double, double>((t) =>
@@ -380,7 +380,7 @@ public bool Intersects(Ellipse other, out List<Vector3> results)
             Plane planeA = new Plane(Center, Normal);
             Plane planeB = new Plane(other.Center, other.Normal);
 
-            // Check if circle and ellipse are on the same plane. 
+            // Check if circle and ellipse are on the same plane.
             if (Normal.IsParallelTo(other.Normal, Vector3.EPSILON * Vector3.EPSILON) &&
                 other.Center.DistanceTo(planeA).ApproximatelyEquals(0))
             {
@@ -405,7 +405,7 @@ public bool Intersects(Ellipse other, out List<Vector3> results)
                 }
 
                 // Too far away (rough estimation)
-                if (Center.DistanceTo(other.Center) > 
+                if (Center.DistanceTo(other.Center) >
                     Math.Max(MajorAxis, MinorAxis) + Math.Max(other.MajorAxis, other.MinorAxis))
                 {
                     return false;
@@ -466,7 +466,7 @@ public bool Intersects(BoundedCurve curve, out List<Vector3> results)
         /// </summary>
         public double Circumference()
         {
-            return Math.PI * (3 * (MajorAxis + MinorAxis) - 
+            return Math.PI * (3 * (MajorAxis + MinorAxis) -
                 Math.Sqrt((3 * MajorAxis + MinorAxis) * (MajorAxis + 3 * MinorAxis)));
         }
 
@@ -511,7 +511,7 @@ internal double ArcLengthUntil(double t0,
                 if (arcLength + sampleLength > distance)
                 {
                     // TODO: This is an approximation.
-                    // This will return the parameter before the 
+                    // This will return the parameter before the
                     // actual value that we want. Implement a more
                     // precise strategy.
                     end = t;
diff --git a/Elements/src/Geometry/EllipticalArc.cs b/Elements/src/Geometry/EllipticalArc.cs
index 932c79f2b..5923b2bb5 100644
--- a/Elements/src/Geometry/EllipticalArc.cs
+++ b/Elements/src/Geometry/EllipticalArc.cs
@@ -1,7 +1,8 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Linq;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
@@ -17,13 +18,15 @@ public class EllipticalArc : TrimmedCurve<Ellipse>
         public override Domain1d Domain => new Domain1d(Units.DegreesToRadians(this.StartAngle), Units.DegreesToRadians(this.EndAngle));
 
         /// <summary>The angle from 0.0, in degrees, at which the arc will start with respect to the positive X axis.</summary>
-        [JsonProperty("StartAngle", Required = Required.Always)]
-        [System.ComponentModel.DataAnnotations.Range(0.0D, 360.0D)]
+        [JsonPropertyName("StartAngle")]
+        [JsonInclude]
+        [Range(0.0D, 360.0D)]
         public double StartAngle { get; protected set; }
 
         /// <summary>The angle from 0.0, in degrees, at which the arc will end with respect to the positive X axis.</summary>
-        [JsonProperty("EndAngle", Required = Required.Always)]
-        [System.ComponentModel.DataAnnotations.Range(0.0D, 360.0D)]
+        [JsonPropertyName("EndAngle")]
+        [JsonInclude]
+        [Range(0.0D, 360.0D)]
         public double EndAngle { get; protected set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/IndexedPolycurve.cs b/Elements/src/Geometry/IndexedPolycurve.cs
index 920afad2a..6a4bfe699 100644
--- a/Elements/src/Geometry/IndexedPolycurve.cs
+++ b/Elements/src/Geometry/IndexedPolycurve.cs
@@ -1,10 +1,13 @@
 using Elements.Geometry.Interfaces;
+using Elements.Serialization.JSON;
 using Elements.Validators;
-using Newtonsoft.Json;
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Linq;
+using System.Text.Json.Serialization;
+using Validator = Elements.Validators.Validator;
 
 namespace Elements.Geometry
 {
@@ -13,7 +16,7 @@ namespace Elements.Geometry
     /// Parameterization of the curve is 0->n where n is the number of curves.
     /// </summary>
     /// [!code-csharp[Main](../../Elements/test/IndexedPolycurveTests.cs?name=example)]
-    [JsonObject]
+    [JsonConverter(typeof(ElementConverter<IndexedPolycurve>))]
     public class IndexedPolycurve : BoundedCurve, IEnumerable<BoundedCurve>, IEquatable<IndexedPolycurve>
     {
         /// <summary>
@@ -62,9 +65,10 @@ public override Vector3 End
         public IList<IList<int>> CurveIndices { get; set; }
 
         /// <summary>The vertices of the polygon.</summary>
-        [JsonProperty("Vertices", Required = Required.Always)]
-        [System.ComponentModel.DataAnnotations.Required]
-        [System.ComponentModel.DataAnnotations.MinLength(2)]
+        [JsonPropertyName("Vertices")]
+        [JsonInclude]
+        [Required]
+        [MinLength(2)]
         public IList<Vector3> Vertices { get; set; } = new List<Vector3>();
 
         /// <summary>
@@ -292,7 +296,7 @@ public override double[] GetSubdivisionParameters(double startSetbackDistance =
                 for (var j = 0; j < localParameters.Length; j++)
                 {
                     var localParameter = localParameters[j];
-                    // The curve domain may be 0->2Pi. We need to map that 
+                    // The curve domain may be 0->2Pi. We need to map that
                     // into a domain that is a subsection of the larger domain.
                     var remapped = localParameter.MapBetweenDomains(curve.Domain, localDomain);
 
@@ -394,7 +398,7 @@ public override double ParameterAtDistanceFromParameter(double distance, double
                 var curve = _curves[i];
 
                 // The start parameter will either be the partial
-                // parameter, because this is the curve on which 
+                // parameter, because this is the curve on which
                 // the start parameter is located, or it will be 0.0.
                 var normalizedStartParameter = i == startCurveIndex ? start - i : 0.0;
                 var localStartParameter = normalizedStartParameter.MapToDomain(curve.Domain);
@@ -549,7 +553,7 @@ public override bool Intersects(ICurve curve, out List<Vector3> results)
                 {
                     foreach (var item in intersections)
                     {
-                        if (!results.Any() || 
+                        if (!results.Any() ||
                             !results.First().IsAlmostEqualTo(item) && !results.Last().IsAlmostEqualTo(item))
                         {
                             results.Add(item);
diff --git a/Elements/src/Geometry/ThickenedPolyline.cs b/Elements/src/Geometry/ThickenedPolyline.cs
index 0c6177bf5..9103db6f3 100644
--- a/Elements/src/Geometry/ThickenedPolyline.cs
+++ b/Elements/src/Geometry/ThickenedPolyline.cs
@@ -1,8 +1,8 @@
 using System;
 using System.Linq;
-using Newtonsoft.Json;
 using System.Collections.Generic;
 using Elements.Search;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
@@ -46,15 +46,15 @@ public ThickenedPolyline(Line line, double leftWidth, double rightWidth) : this(
         }
 
         /// <summary>The base polyline to thicken.</summary>
-        [JsonProperty("polyline", Required = Required.Default, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("polyline")]
         public Polyline Polyline { get; set; }
 
         /// <summary>The amount to thicken the polyline on its "left" side, imagining that the polyline is extending away from you. That is, if the polyline starts at (0,0,0) and follows the +Z axis, the left side extends into the -X quadrant.</summary>
-        [JsonProperty("leftWidth", Required = Required.DisallowNull, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("leftWidth")]
         public double LeftWidth { get; set; }
 
         /// <summary>The amount to thicken the polyline on its "right" side, imagining that the polyline is extending away from you. That is, if the polyline starts at (0,0,0) and follows the +Z axis, the right side extends into the +X quadrant.</summary>
-        [JsonProperty("rightWidth", Required = Required.DisallowNull, NullValueHandling = NullValueHandling.Ignore)]
+        [JsonPropertyName("rightWidth")]
         public double RightWidth { get; set; }
 
         private struct EdgeInfo
@@ -162,7 +162,7 @@ private static void PopulateOffsetVertexMap(ThickenedPolylineGraph graph, Vector
                 // for each edge, compute all the info we'll need for it: its left
                 // thickness / right thickness, its plane angle to the x axis, and
                 // whether it is pointing towards or away from this point. Sort the
-                // results by the plane angle. 
+                // results by the plane angle.
                 var edgesSorted = edges.Select((edge) =>
                 {
                     var otherPoint = edge.OtherPoint;
diff --git a/Elements/src/Geometry/TrimmedCurve.cs b/Elements/src/Geometry/TrimmedCurve.cs
index c83f6a5c8..f28402889 100644
--- a/Elements/src/Geometry/TrimmedCurve.cs
+++ b/Elements/src/Geometry/TrimmedCurve.cs
@@ -1,15 +1,15 @@
 using Elements.Geometry.Interfaces;
-using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 
 namespace Elements.Geometry
 {
     /// <summary>
     /// A trimmed curve.
     /// </summary>
-    public abstract class TrimmedCurve<TBasis> : BoundedCurve, ITrimmedCurve<TBasis> where TBasis: ICurve
+    public abstract class TrimmedCurve<TBasis> : BoundedCurve, ITrimmedCurve<TBasis> where TBasis : ICurve
     {
         /// <summary>
         /// The basis curve for this bounded curve.
diff --git a/Elements/src/Model.cs b/Elements/src/Model.cs
index a4c2f22fd..26535a669 100644
--- a/Elements/src/Model.cs
+++ b/Elements/src/Model.cs
@@ -641,6 +641,7 @@ public static Model FromJson(string json)
                     AllowTrailingCommas = true,
                     IncludeFields = true // needed for tuples
                 };
+
                 options.Converters.Add(new SolidConverter());
 
                 // Our custom reference handler will cache elements by id as
diff --git a/Elements/src/ModelCurve.cs b/Elements/src/ModelCurve.cs
index c93b0300f..843eeaaa5 100644
--- a/Elements/src/ModelCurve.cs
+++ b/Elements/src/ModelCurve.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 
 namespace Elements
diff --git a/Elements/src/Representations/SolidRepresentation.cs b/Elements/src/Representations/SolidRepresentation.cs
index f512c7155..0d6ec0ed2 100644
--- a/Elements/src/Representations/SolidRepresentation.cs
+++ b/Elements/src/Representations/SolidRepresentation.cs
@@ -1,13 +1,13 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 using Elements.Geometry.Solids;
 using Elements.Geometry.Tessellation;
 using Elements.Search;
 using Elements.Utilities;
 using glTFLoader.Schema;
-using Newtonsoft.Json;
 
 namespace Elements
 {
@@ -17,7 +17,8 @@ namespace Elements
     public class SolidRepresentation : ElementRepresentation
     {
         /// <summary>A collection of solid operations.</summary>
-        [JsonProperty("SolidOperations", Required = Required.Always)]
+        [JsonPropertyName("SolidOperations")]
+        [JsonInclude]
         [System.ComponentModel.DataAnnotations.Required]
         public IList<SolidOperation> SolidOperations { get; set; } = new List<SolidOperation>();
 
@@ -54,7 +55,7 @@ public static implicit operator SolidRepresentation(SolidOperation solidOperatio
         /// A flag to disable CSG operations on this representation. Instead,
         /// all solids will be meshed, and all voids will be ignored.
         /// </summary>
-        [Newtonsoft.Json.JsonIgnore]
+        [JsonIgnore]
         [System.ComponentModel.EditorBrowsable(System.ComponentModel.EditorBrowsableState.Never)]
         public bool SkipCSGUnion { get; set; } = false;
 
diff --git a/Elements/src/Serialization/JSON/ModelConverter.cs b/Elements/src/Serialization/JSON/ModelConverter.cs
index b5a534a8c..2f686710e 100644
--- a/Elements/src/Serialization/JSON/ModelConverter.cs
+++ b/Elements/src/Serialization/JSON/ModelConverter.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Text.Json;
 using System.Text.Json.Serialization;
+using Elements.GeoJSON;
 using Elements.Geometry;
 
 namespace Elements.Serialization.JSON
@@ -22,7 +23,7 @@ public override Model Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
                     // TODO: This try/catch is only here to protect against
                     // situations like null property values when the serializer
                     // expects a value, or validation errors. Unlike json.net, system.text.json doesn't
-                    // have null value handling on read. 
+                    // have null value handling on read.
                     try
                     {
                         var id = Guid.Parse(element.Name);
diff --git a/Elements/src/Serialization/JSON/VectorListToByteArrayConverter.cs b/Elements/src/Serialization/JSON/VectorListToByteArrayConverter.cs
index 35feb04c0..dfff33da6 100644
--- a/Elements/src/Serialization/JSON/VectorListToByteArrayConverter.cs
+++ b/Elements/src/Serialization/JSON/VectorListToByteArrayConverter.cs
@@ -1,36 +1,28 @@
 using System;
 using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
-using Newtonsoft.Json;
 
 namespace Elements.Serialization.JSON
 {
-    internal class VectorListToByteArrayConverter : JsonConverter
+    internal class VectorListToByteArrayConverter : JsonConverter<List<Vector3>>
     {
-        public override bool CanRead => false;
-
-        public override bool CanConvert(Type objectType)
-        {
-            return objectType == typeof(List<Vector3>);
-        }
-
-        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        public override List<Vector3> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
             throw new NotImplementedException();
-
         }
 
-        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        public override void Write(Utf8JsonWriter writer, List<Vector3> value, JsonSerializerOptions options)
         {
-            var points = value as List<Vector3>;
-            var valueAsArray = new double[points.Count * 3];
-            for (int i = 0; i < points.Count; i++)
+            var valueAsArray = new double[value.Count * 3];
+            for (int i = 0; i < value.Count; i++)
             {
-                valueAsArray[i * 3] = points[i].X;
-                valueAsArray[i * 3 + 1] = points[i].Y;
-                valueAsArray[i * 3 + 2] = points[i].Z;
+                valueAsArray[i * 3] = value[i].X;
+                valueAsArray[i * 3 + 1] = value[i].Y;
+                valueAsArray[i * 3 + 2] = value[i].Z;
             }
-            serializer.Serialize(writer, valueAsArray);
+            JsonSerializer.Serialize(writer, valueAsArray, options);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/Elements/src/Snapping/SnappingPoints.cs b/Elements/src/Snapping/SnappingPoints.cs
index 8c00dfe61..53117d75f 100644
--- a/Elements/src/Snapping/SnappingPoints.cs
+++ b/Elements/src/Snapping/SnappingPoints.cs
@@ -1,7 +1,7 @@
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 using Elements.Geometry;
 using Elements.Serialization.JSON;
-using Newtonsoft.Json;
 
 namespace Elements
 {
@@ -24,14 +24,14 @@ public SnappingPoints(IEnumerable<Vector3> points, SnappingEdgeMode edgeMode = S
         /// <summary>
         /// Snapping points.
         /// </summary>
-        [JsonProperty("points")]
+        [JsonPropertyName("points")]
         [JsonConverter(typeof(VectorListToByteArrayConverter))]
         public List<Vector3> Points { get; } = new List<Vector3>();
 
         /// <summary>
         /// The modes for creating snap edges.
         /// </summary>
-        [JsonProperty("edgeMode")]
+        [JsonPropertyName("edgeMode")]
         public SnappingEdgeMode EdgeMode { get; set; }
     }
 }
\ No newline at end of file
diff --git a/Elements/test/BezierTests.cs b/Elements/test/BezierTests.cs
index 2df434b0e..c30809e5b 100644
--- a/Elements/test/BezierTests.cs
+++ b/Elements/test/BezierTests.cs
@@ -147,8 +147,8 @@ public void IntersectsPolycurve()
 
             var polygon = new Polygon(new Vector3[]{
                 (0, 3), (6, 3), (4, 1), (-2, 1)
-            }); 
-            
+            });
+
             Assert.True(bezier.Intersects(polygon, out var results));
             Assert.Equal(4, results.Count);
             Assert.Contains(new Vector3(0.93475, 3), results);
diff --git a/Elements/test/Elements.Tests.csproj b/Elements/test/Elements.Tests.csproj
index 4d55ef5be..ec9cfde16 100644
--- a/Elements/test/Elements.Tests.csproj
+++ b/Elements/test/Elements.Tests.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.7.0" />
-    <PackageReference Include="System.Text.Json" Version="6.0.2" />
+    <PackageReference Include="System.Text.Json" Version="8.0.0" />
     <PackageReference Include="xunit" Version="2.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
     <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.1" />
diff --git a/Elements/test/GltfTests.cs b/Elements/test/GltfTests.cs
index 80ca7f2ee..0e58f4f43 100644
--- a/Elements/test/GltfTests.cs
+++ b/Elements/test/GltfTests.cs
@@ -7,7 +7,7 @@
 using System;
 using System.IO;
 using Elements.Geometry.Solids;
-using Newtonsoft.Json.Linq;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -117,7 +117,7 @@ public void CsgCreationErrorIsHandledWhenGeometricElementIsScaledToZero()
             // Add one more solid operation to ensure that we hit the path
             // which computes CSGs. Attempting to create a CSG with scale 0
             // will throw an exception which will be handled and added to
-            // the errors collection. 
+            // the errors collection.
 
             var t = l.TransformAt(0.5);
             beam.Representation.SolidOperations.Add(new Extrude(Polygon.Rectangle(0.5, 0.5), 0.5, t.ZAxis, isVoid: false));
@@ -173,43 +173,62 @@ public void IdAndSelectabilityIsStoredInGLTF()
 
             model.ToGlTF(gltfPath, true);
             var gltf = Interface.LoadModel(gltfPath);
+
             Assert.Contains(gltf.ExtensionsUsed, (s) => "HYPAR_info" == s);
+
             Assert.Contains(gltf.Nodes, (n) =>
             {
-                return n.Extensions != null &&
-                    n.Extensions.TryGetValue("HYPAR_info", out var info) &&
-                    info is JObject j &&
-                    j["id"].Value<string>() == modelCurve.Id.ToString() &&
-                    j["selectable"].Value<bool>() == false;
+                if (n.Extensions != null &&
+                    n.Extensions.TryGetValue("HYPAR_info", out object obj) && // Get the value as an object
+                    obj is JsonElement info) // Cast the object to JsonElement
+                {
+                    if (info.TryGetProperty("id", out JsonElement idElement) &&
+                        idElement.GetString() == modelCurve.Id.ToString() &&
+                        info.TryGetProperty("selectable", out JsonElement selectableElement) &&
+                        selectableElement.GetBoolean() == false)
+                    {
+                        return true;
+                    }
+                }
+                return false;
             });
+
             Assert.Contains(gltf.Nodes, (n) =>
             {
                 return n.Extensions != null &&
-                    n.Extensions.TryGetValue("HYPAR_info", out var info) &&
-                    info is JObject j &&
-                    j["id"].Value<string>() == mass.Id.ToString();
+                    n.Extensions.TryGetValue("HYPAR_info", out object obj) &&
+                    obj is JsonElement info &&
+                    info.TryGetProperty("id", out JsonElement idElement) &&
+                    idElement.GetString() == mass.Id.ToString();
             });
+
             Assert.Contains(gltf.Nodes, (n) =>
             {
                 return n.Extensions != null &&
-                    n.Extensions.TryGetValue("HYPAR_info", out var info) &&
-                    info is JObject j &&
-                    j["id"].Value<string>() == instance.Id.ToString();
+                       n.Extensions.TryGetValue("HYPAR_info", out object obj) &&
+                       obj is JsonElement info &&
+                       info.TryGetProperty("id", out JsonElement idElement) &&
+                       idElement.GetString() == instance.Id.ToString();
             });
+
             Assert.Contains(gltf.Nodes, (n) =>
             {
                 return n.Extensions != null &&
-                    n.Extensions.TryGetValue("HYPAR_info", out var info) &&
-                    info is JObject j &&
-                    j["id"].Value<string>() == contentElement.Id.ToString();
+                       n.Extensions.TryGetValue("HYPAR_info", out object obj) &&
+                       obj is JsonElement info &&
+                       info.TryGetProperty("id", out JsonElement idElement) &&
+                       idElement.GetString() == contentElement.Id.ToString();
             });
+
             Assert.Contains(gltf.Nodes, (n) =>
             {
                 return n.Extensions != null &&
-                    n.Extensions.TryGetValue("HYPAR_info", out var info) &&
-                    info is JObject j &&
-                    j["id"].Value<string>() == contentInstance.Id.ToString();
+                       n.Extensions.TryGetValue("HYPAR_info", out object obj) &&
+                       obj is JsonElement info &&
+                       info.TryGetProperty("id", out JsonElement idElement) &&
+                       idElement.GetString() == contentInstance.Id.ToString();
             });
+
         }
     }
 }
\ No newline at end of file
diff --git a/Elements/test/IndexedPolyCurveTests.cs b/Elements/test/IndexedPolyCurveTests.cs
index f952bb078..04fd0bc94 100644
--- a/Elements/test/IndexedPolyCurveTests.cs
+++ b/Elements/test/IndexedPolyCurveTests.cs
@@ -1,8 +1,8 @@
 using System.Collections.Generic;
 using System.Linq;
 using Elements.Geometry;
-using Newtonsoft.Json;
 using Xunit;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -160,8 +160,8 @@ public void RenderVertices()
         public void Serialization()
         {
             var pc = CreateTestPolycurve();
-            var json = JsonConvert.SerializeObject(pc);
-            var pc2 = JsonConvert.DeserializeObject<IndexedPolycurve>(json);
+            var json = JsonSerializer.Serialize(pc);
+            var pc2 = JsonSerializer.Deserialize<IndexedPolycurve>(json);
             var mc1 = new ModelCurve(pc, BuiltInMaterials.XAxis);
             var mc2 = new ModelCurve(pc2, BuiltInMaterials.YAxis);
             Assert.Equal(pc.Vertices, pc2.Vertices);
@@ -210,7 +210,7 @@ public void GetSubdivisionParameters()
         {
             var pc = new IndexedPolycurve(new List<Vector3>()
             {
-                (0, 0), (2, 0), (2, 2), (0, 2), (0, 3) 
+                (0, 0), (2, 0), (2, 2), (0, 2), (0, 3)
             });
             var parameters = pc.GetSubdivisionParameters();
             Assert.Equal(5, parameters.Count());
diff --git a/Elements/test/ModelTests.cs b/Elements/test/ModelTests.cs
index 03173e3a7..c634936a3 100644
--- a/Elements/test/ModelTests.cs
+++ b/Elements/test/ModelTests.cs
@@ -8,9 +8,9 @@
 using Elements.Geometry.Solids;
 using System.Linq;
 using Xunit.Abstractions;
-using Newtonsoft.Json.Linq;
 using System.Threading.Tasks;
 using System.Text.Json;
+using System.Text;
 
 namespace Elements.Tests
 {
@@ -240,14 +240,23 @@ public void DeserializationSkipsUnknownProperties()
             var model = new Model();
             model.AddElement(column);
             var json = model.ToJson(true);
-            // https://www.newtonsoft.com/json/help/html/ModifyJson.htm
-            var obj = JObject.Parse(json);
-            var elements = obj["Elements"];
-            var c = (JObject)elements.Values().ElementAt(2);
 
-            // Inject an unknown property.
-            c.Property("Curve").AddAfterSelf(new JProperty("Foo", "Bar"));
-            var newModel = Model.FromJson(obj.ToString());
+            // Parse the JSON and convert the specific part to a Dictionary
+            using var doc = JsonDocument.Parse(json);
+            var root = doc.RootElement.Clone();
+            var elements = root.GetProperty("Elements").EnumerateObject().ToDictionary(p => p.Name, p => p.Value.Clone());
+
+            // Modify the specific element in the dictionary
+            var c = elements.Values.ElementAt(2);
+            var cDict = JsonSerializer.Deserialize<Dictionary<string, JsonElement>>(c.GetRawText());
+            cDict.Add("Foo", JsonDocument.Parse("\"Bar\"").RootElement); // Add new property
+            elements[elements.Keys.ElementAt(2)] = JsonSerializer.Deserialize<JsonElement>(JsonSerializer.Serialize(cDict));
+
+            // Serialize the modified dictionary back to JSON
+            var modifiedJson = JsonSerializer.Serialize(new { Elements = elements }, new JsonSerializerOptions { WriteIndented = true });
+
+            // Deserialize the modified JSON
+            var newModel = Model.FromJson(modifiedJson);
             Assert.Single(newModel.AllElementsOfType<Column>());
             var newColumn = newModel.AllElementsOfType<Column>().First();
             Assert.Equal(column.Curve, newColumn.Curve);
@@ -261,14 +270,25 @@ public void DeserializationConstructsWithMissingProperties()
             var model = new Model();
             model.AddElement(column);
             var json = model.ToJson(true);
-            // https://www.newtonsoft.com/json/help/html/ModifyJson.htm
-            var obj = JObject.Parse(json);
-            var elements = obj["Elements"];
-            var c = (JObject)elements.Values().ElementAt(2); // the column
+
+            // Parse the JSON, convert to a dictionary, remove the property, and re-serialize
+            using var doc = JsonDocument.Parse(json);
+            var root = doc.RootElement.Clone();
+            var rootDict = JsonSerializer.Deserialize<Dictionary<string, JsonElement>>(root.GetRawText());
+
+            var elements = rootDict["Elements"].EnumerateObject().ToDictionary(p => p.Name, p => p.Value.Clone());
+            var c = elements.Values.ElementAt(2).EnumerateObject().ToDictionary(p => p.Name, p => p.Value.Clone());
 
             // Remove the Location property
-            c.Property("Location").Remove();
-            var newModel = Model.FromJson(obj.ToString());
+            c.Remove("Location");
+            elements[elements.Keys.ElementAt(2)] = JsonSerializer.Deserialize<JsonElement>(JsonSerializer.Serialize(c));
+            rootDict["Elements"] = JsonSerializer.Deserialize<JsonElement>(JsonSerializer.Serialize(elements));
+
+            var modifiedJson = JsonSerializer.Serialize(rootDict, new JsonSerializerOptions { WriteIndented = true });
+
+            // Deserialize the modified JSON
+            var newModel = Model.FromJson(modifiedJson);
+            Assert.Single(newModel.AllElementsOfType<Column>());
             var newColumn = newModel.AllElementsOfType<Column>().First();
             Assert.Equal(Vector3.Origin, newColumn.Location);
         }
diff --git a/Elements/test/NetworkTests.cs b/Elements/test/NetworkTests.cs
index b30c60ce4..402487e5c 100644
--- a/Elements/test/NetworkTests.cs
+++ b/Elements/test/NetworkTests.cs
@@ -7,7 +7,7 @@
 using System.Linq;
 using System.Diagnostics;
 using System.IO;
-using Newtonsoft.Json;
+using System.Text.Json;
 
 namespace Elements.Tests
 {
@@ -295,7 +295,7 @@ public void FindAllClosedRegionsDoesNotLoopInfinitely()
         {
             this.Name = nameof(FindAllClosedRegionsDoesNotLoopInfinitely);
             var json = File.ReadAllText("../../../models/Geometry/BadNetwork.json");
-            var lines = JsonConvert.DeserializeObject<List<Line>>(json);
+            var lines = JsonSerializer.Deserialize<List<Line>>(json);
             var network = Network<Line>.FromSegmentableItems(lines, (l) => { return l; }, out var allNodeLocations, out var _);
             Model.AddElements(network.ToModelText(allNodeLocations, Colors.Black));
             Model.AddElements(network.ToModelArrows(allNodeLocations, Colors.Blue));
@@ -397,16 +397,16 @@ public void FindClosedRegionWithInnerSegments()
         [Fact]
         public void FindClosedRegionWithOuterSegments()
         {
-            // An intersecting path that ends at the edge 
+            // An intersecting path that ends at the edge
             // of a closed region.
             //
-            //        /      
-            //       |      
+            //        /
+            //       |
             // ---------------
             // |             |
             // |             |
             // |             |
-            // |             | 
+            // |             |
             // |             |
             // ---------------
 
@@ -438,7 +438,7 @@ public void IntersectingLeafPathFindsCorrectClosedRegions()
             // |             |
             // |-------------|
             // |             |
-            // |       /     | 
+            // |       /     |
             // |      |      |
             // ---------------
             //        |
@@ -501,7 +501,7 @@ public void TwoInnerLeavesClosedRegions()
             // |         8   |
             // |          ---| 1
             // |    7   9/   |
-            // |     \6      | 
+            // |     \6      |
             // |      |      |
             // ---------------
             // 4      5       0
diff --git a/Elements/test/VectorTests.cs b/Elements/test/VectorTests.cs
index 44957050e..6016d91d1 100644
--- a/Elements/test/VectorTests.cs
+++ b/Elements/test/VectorTests.cs
@@ -1,7 +1,7 @@
 using Elements.Geometry;
-using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
+using System.Text.Json;
 using Xunit;
 
 namespace Elements.Tests
@@ -637,7 +637,7 @@ public void PointsAreCoplanarWithinTolerance()
 
             // Test with a real-world output from Hypar that was failing.
             var ptsSerialized = "[{\"X\":0.0,\"Y\":0.0,\"Z\":0.0},{\"X\":20.0,\"Y\":0.0,\"Z\":-8.43769498715119E-15},{\"X\":19.999999999999996,\"Y\":20.0,\"Z\":-1.021405182655144E-14},{\"X\":9.999999999999995,\"Y\":20.0,\"Z\":-3.096967127191874E-13},{\"X\":10.0,\"Y\":10.0,\"Z\":-4.218847493575595E-15},{\"X\":1.7763568394002505E-15,\"Y\":9.999999999999998,\"Z\":0.0}]";
-            var pts = JsonConvert.DeserializeObject<List<Vector3>>(ptsSerialized);
+            var pts = JsonSerializer.Deserialize<List<Vector3>>(ptsSerialized);
             Assert.True(pts.AreCoplanar());
 
             // Test with a shape that has a lot of coincident and collinear points.

From c12a25d61f782d7fcfcbadcbd22a9d44033572a7 Mon Sep 17 00:00:00 2001
From: Anthonie Kramer <anthoniekramer@gmail.com>
Date: Wed, 6 Dec 2023 11:00:24 -0800
Subject: [PATCH 148/150] trying to fix

---
 Elements/src/Geometry/Polygon.cs                    | 2 ++
 Elements/src/Geometry/Polyline.cs                   | 3 +++
 Elements/src/GridLine.cs                            | 2 +-
 Elements/src/Serialization/JSON/ElementConverter.cs | 8 ++++----
 4 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/Elements/src/Geometry/Polygon.cs b/Elements/src/Geometry/Polygon.cs
index 4fffa1bce..af05a478d 100644
--- a/Elements/src/Geometry/Polygon.cs
+++ b/Elements/src/Geometry/Polygon.cs
@@ -9,6 +9,7 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
+using Elements.Serialization.JSON;
 
 namespace Elements.Geometry
 {
@@ -19,6 +20,7 @@ namespace Elements.Geometry
     /// <example>
     /// [!code-csharp[Main](../../Elements/test/PolygonTests.cs?name=example)]
     /// </example>
+    [JsonConverter(typeof(ElementConverter<Polygon>))]
     public partial class Polygon : Polyline
     {
         /// <summary>
diff --git a/Elements/src/Geometry/Polyline.cs b/Elements/src/Geometry/Polyline.cs
index 9bc8939b9..bf5bb877d 100644
--- a/Elements/src/Geometry/Polyline.cs
+++ b/Elements/src/Geometry/Polyline.cs
@@ -4,6 +4,7 @@
 using System.Linq;
 using ClipperLib;
 using Elements.Search;
+using Elements.Serialization.JSON;
 
 namespace Elements.Geometry
 {
@@ -14,6 +15,8 @@ namespace Elements.Geometry
     /// <example>
     /// [!code-csharp[Main](../../Elements/test/PolylineTests.cs?name=example)]
     /// </example>
+    ///
+    [JsonConverter(typeof(ElementConverter<Polyline>))]
     public class Polyline : IndexedPolycurve
     {
         /// <summary>
diff --git a/Elements/src/GridLine.cs b/Elements/src/GridLine.cs
index 4dca87f2b..598f5200d 100644
--- a/Elements/src/GridLine.cs
+++ b/Elements/src/GridLine.cs
@@ -38,7 +38,7 @@ public Polyline Geometry
         /// <summary>
         /// Curve that runs from the start of the gridline to its end.
         /// </summary>
-        [JsonConverter(typeof(ElementConverter<Curve>))]
+        [JsonConverter(typeof(ElementConverter<BoundedCurve>))]
         public BoundedCurve Curve { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Serialization/JSON/ElementConverter.cs b/Elements/src/Serialization/JSON/ElementConverter.cs
index c2abccb5c..8beee70f8 100644
--- a/Elements/src/Serialization/JSON/ElementConverter.cs
+++ b/Elements/src/Serialization/JSON/ElementConverter.cs
@@ -10,7 +10,7 @@ namespace Elements.Serialization.JSON
     /// <summary>
     /// Convert elements, lists of elements, and dictionaries of elements,
     /// and elements with generic type parameters.
-    /// 
+    ///
     /// </summary>
     /// <typeparam name="T"></typeparam>
     public class ElementConverter<T> : JsonConverter<T>
@@ -144,7 +144,7 @@ public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerial
                             // where serialization is going berserk, it'll print
                             // the element ids as they serialize. This is useful
                             // when things like stack overflows happen, to identify
-                            // the last element entered before the overflow. Then you 
+                            // the last element entered before the overflow. Then you
                             // can go and look at that element in the JSON and
                             // try to understand what's happening.
                             // if (root.TryGetProperty("Id", out var id))
@@ -263,7 +263,7 @@ private void DeserializeElementProperties(Type derivedType,
                 prop.ValueKind == JsonValueKind.Null)
                 {
                     // You'll get here when you've got a null reference to an element,
-                    // or you've got no element at all in the json. 
+                    // or you've got no element at all in the json.
                     // Resolve to an empty id, causing the resolver to return null.
                     elementReferenceResolver.ResolveReference(string.Empty);
                     continue;
@@ -372,7 +372,7 @@ internal static void HandleReferenceId(JsonElement elementToDeserialize,
             }
             else
             {
-                // The reference cannot be found. It's either not 
+                // The reference cannot be found. It's either not
                 // a direct reference, as in the case of a cross-model
                 // reference, or it's just broken.
                 resolver.AddReference(referencedId.ToString(), null);

From 19f8ca6b55add39ef87f61f50f90deacbade0d79 Mon Sep 17 00:00:00 2001
From: Anthonie Kramer <anthoniekramer@gmail.com>
Date: Wed, 6 Dec 2023 16:40:10 -0800
Subject: [PATCH 149/150] updates to some converters

---
 .../src/ToDxfExtensions.cs                    |  2 +-
 Elements/src/Geometry/IndexedPolycurve.cs     |  2 +-
 Elements/src/Geometry/Line.cs                 |  1 +
 Elements/src/Geometry/Polygon.cs              |  2 +-
 Elements/src/Geometry/Polyline.cs             |  3 +-
 Elements/src/Geometry/Profile.cs              |  3 ++
 Elements/src/Geometry/Solids/Extrude.cs       | 10 +++-
 Elements/src/Geometry/Solids/Lamina.cs        | 11 +++-
 Elements/src/Geometry/Solids/Solid.cs         | 11 ++--
 Elements/src/Geometry/Solids/Sweep.cs         | 12 ++++-
 .../src/Serialization/JSON/LineConverter.cs   | 54 +++++++++++++++++++
 .../Serialization/JSON/PolygonConverter.cs    | 52 ++++++++++++++++++
 .../Serialization/JSON/PolylineConverter.cs   | 52 ++++++++++++++++++
 .../src/Serialization/JSON/SolidConverter.cs  | 40 +++++++-------
 Elements/src/StructuralFraming.cs             |  2 +-
 Elements/test/ArcTests.cs                     |  2 +-
 Elements/test/Grid1dTests.cs                  | 17 +++++-
 17 files changed, 241 insertions(+), 35 deletions(-)
 create mode 100644 Elements/src/Serialization/JSON/LineConverter.cs
 create mode 100644 Elements/src/Serialization/JSON/PolygonConverter.cs
 create mode 100644 Elements/src/Serialization/JSON/PolylineConverter.cs

diff --git a/Elements.Serialization.DXF/src/ToDxfExtensions.cs b/Elements.Serialization.DXF/src/ToDxfExtensions.cs
index 6eb64b22d..4e303f994 100644
--- a/Elements.Serialization.DXF/src/ToDxfExtensions.cs
+++ b/Elements.Serialization.DXF/src/ToDxfExtensions.cs
@@ -75,7 +75,7 @@ public static int To24BitColor(this Color color)
         }
 
         /// <summary>
-        /// 
+        ///
         /// </summary>
         /// <param name="element"></param>
         /// <returns></returns>
diff --git a/Elements/src/Geometry/IndexedPolycurve.cs b/Elements/src/Geometry/IndexedPolycurve.cs
index 6a4bfe699..1e740bb84 100644
--- a/Elements/src/Geometry/IndexedPolycurve.cs
+++ b/Elements/src/Geometry/IndexedPolycurve.cs
@@ -16,7 +16,7 @@ namespace Elements.Geometry
     /// Parameterization of the curve is 0->n where n is the number of curves.
     /// </summary>
     /// [!code-csharp[Main](../../Elements/test/IndexedPolycurveTests.cs?name=example)]
-    [JsonConverter(typeof(ElementConverter<IndexedPolycurve>))]
+    ///
     public class IndexedPolycurve : BoundedCurve, IEnumerable<BoundedCurve>, IEquatable<IndexedPolycurve>
     {
         /// <summary>
diff --git a/Elements/src/Geometry/Line.cs b/Elements/src/Geometry/Line.cs
index 4a32b4e45..18f92059b 100644
--- a/Elements/src/Geometry/Line.cs
+++ b/Elements/src/Geometry/Line.cs
@@ -4,6 +4,7 @@
 using System.Linq;
 using System.Text.Json.Serialization;
 using Elements.Spatial;
+using Elements.Serialization.JSON;
 
 namespace Elements.Geometry
 {
diff --git a/Elements/src/Geometry/Polygon.cs b/Elements/src/Geometry/Polygon.cs
index af05a478d..cf51a4c08 100644
--- a/Elements/src/Geometry/Polygon.cs
+++ b/Elements/src/Geometry/Polygon.cs
@@ -20,7 +20,7 @@ namespace Elements.Geometry
     /// <example>
     /// [!code-csharp[Main](../../Elements/test/PolygonTests.cs?name=example)]
     /// </example>
-    [JsonConverter(typeof(ElementConverter<Polygon>))]
+    [JsonConverter(typeof(PolygonConverter))]
     public partial class Polygon : Polyline
     {
         /// <summary>
diff --git a/Elements/src/Geometry/Polyline.cs b/Elements/src/Geometry/Polyline.cs
index bf5bb877d..15905e0d8 100644
--- a/Elements/src/Geometry/Polyline.cs
+++ b/Elements/src/Geometry/Polyline.cs
@@ -15,8 +15,7 @@ namespace Elements.Geometry
     /// <example>
     /// [!code-csharp[Main](../../Elements/test/PolylineTests.cs?name=example)]
     /// </example>
-    ///
-    [JsonConverter(typeof(ElementConverter<Polyline>))]
+    [JsonConverter(typeof(PolylineConverter))]
     public class Polyline : IndexedPolycurve
     {
         /// <summary>
diff --git a/Elements/src/Geometry/Profile.cs b/Elements/src/Geometry/Profile.cs
index dde35910a..05bec3880 100644
--- a/Elements/src/Geometry/Profile.cs
+++ b/Elements/src/Geometry/Profile.cs
@@ -4,6 +4,7 @@
 using System.Linq;
 using ClipperLib;
 using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements.Geometry
 {
@@ -13,9 +14,11 @@ namespace Elements.Geometry
     public class Profile : Element, IEquatable<Profile>
     {
         /// <summary>The perimeter of the profile.</summary>
+        [JsonPropertyName("Perimeter")]
         public Polygon Perimeter { get; set; }
 
         /// <summary>A collection of Polygons representing voids in the profile.</summary>
+        [JsonPropertyName("Voids")]
         public IList<Polygon> Voids { get; set; }
 
         /// <summary>
diff --git a/Elements/src/Geometry/Solids/Extrude.cs b/Elements/src/Geometry/Solids/Extrude.cs
index 5660d0298..b1b26201f 100644
--- a/Elements/src/Geometry/Solids/Extrude.cs
+++ b/Elements/src/Geometry/Solids/Extrude.cs
@@ -75,6 +75,15 @@ public bool ReverseWinding
             }
         }
 
+        [JsonConstructor]
+        /// <summary>
+        /// Construct an extrusion. This method is mainly for the System.Text.Json Serializer
+        /// </summary>
+        public Extrude(bool isVoid = false)
+            : base(isVoid)
+        {
+        }
+
         /// <summary>
         /// Construct an extrusion.
         /// </summary>
@@ -87,7 +96,6 @@ public bool ReverseWinding
         /// out, with face normals facing in instead of out. Use with caution if
         /// using with other solid operations in a representation — boolean
         /// results may be unexpected.</param>
-        [JsonConstructor]
         public Extrude(Profile profile, double height, Vector3 direction, bool isVoid = false, bool reverseWinding = false)
             : base(isVoid)
         {
diff --git a/Elements/src/Geometry/Solids/Lamina.cs b/Elements/src/Geometry/Solids/Lamina.cs
index aa65f7098..cfcd64cb5 100644
--- a/Elements/src/Geometry/Solids/Lamina.cs
+++ b/Elements/src/Geometry/Solids/Lamina.cs
@@ -41,13 +41,22 @@ public IList<Polygon> Voids
             }
         }
 
+
+        [JsonConstructor]
+        /// <summary>
+        /// Construct a lamina. This method is mainly for the System.Text.Json Serializer
+        /// </summary>
+        public Lamina(bool isVoid)
+            : base(isVoid)
+        {
+        }
+
         /// <summary>
         /// Construct a lamina.
         /// </summary>
         /// <param name="perimeter"></param>
         /// <param name="voids"></param>
         /// <param name="isVoid"></param>
-        [JsonConstructor]
         public Lamina(Polygon @perimeter, IList<Polygon> @voids, bool @isVoid)
             : base(isVoid)
         {
diff --git a/Elements/src/Geometry/Solids/Solid.cs b/Elements/src/Geometry/Solids/Solid.cs
index a8dfad0d6..d59fd1233 100644
--- a/Elements/src/Geometry/Solids/Solid.cs
+++ b/Elements/src/Geometry/Solids/Solid.cs
@@ -10,6 +10,8 @@
 using Elements.Search;
 using Elements.Spatial;
 using LibTessDotNet.Double;
+using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 [assembly: InternalsVisibleTo("Hypar.Elements.Tests")]
 
@@ -18,6 +20,7 @@ namespace Elements.Geometry.Solids
     /// <summary>
     /// A boundary representation of a solid.
     /// </summary>
+    [JsonConverter(typeof(SolidConverter))]
     public partial class Solid : ITessellate
     {
         private uint _faceId;
@@ -471,7 +474,7 @@ public bool Intersects(Plane p, out List<Polygon> result)
                 var d = facePlane.Normal.Cross(p.Normal).Unitized();
                 edgeResults.Sort(new DirectionComparer(d));
 
-                // Draw segments through the results and add to the 
+                // Draw segments through the results and add to the
                 // half edge graph.
                 for (var j = 0; j < edgeResults.Count - 1; j += 2)
                 {
@@ -517,7 +520,7 @@ public bool Intersects(Plane p, out List<Polygon> result)
             {
                 // TODO: We could test for known failure modes, but the
                 // iteration over the edge graph before attempting to
-                // graph to identify these modes, is as expensive as 
+                // graph to identify these modes, is as expensive as
                 // the graph attempt.
                 // Known cases there the half edge graph will throw an
                 // exception:
@@ -658,10 +661,10 @@ protected Loop LoopFromPolygon(Polygon p,
         }
 
         // TODO: This method should not be required if we have adequate lookup
-        // operations based on vertex locations and incident edges. This is 
+        // operations based on vertex locations and incident edges. This is
         // currently used in the case where we want to add a face from a polygon
         // but in most cases where we want to do that we already know something
-        // about the shape of the existing solid and should be able to lookup 
+        // about the shape of the existing solid and should be able to lookup
         // existing vertices without doing an O(n) search. Implement a better
         // search strategy!
         private void FindOrCreateVertex(Vector3 pt, int i, Transform transform, bool mergeVerticesAndEdges, Vertex[] verts)
diff --git a/Elements/src/Geometry/Solids/Sweep.cs b/Elements/src/Geometry/Solids/Sweep.cs
index d398d39f5..c68f6d9a8 100644
--- a/Elements/src/Geometry/Solids/Sweep.cs
+++ b/Elements/src/Geometry/Solids/Sweep.cs
@@ -14,6 +14,15 @@ public partial class Sweep : SolidOperation, System.ComponentModel.INotifyProper
         private double _endSetback;
         private double _profileRotation;
 
+        [JsonConstructor]
+        /// <summary>
+        /// Construct a sweep. This method is mainly for the System.Text.Json Serializer
+        /// </summary>
+        public Sweep(bool isVoid)
+          : base(isVoid)
+        {
+        }
+
         /// <summary>
         /// Construct a sweep.
         /// </summary>
@@ -23,7 +32,7 @@ public partial class Sweep : SolidOperation, System.ComponentModel.INotifyProper
         /// <param name="endSetback"></param>
         /// <param name="profileRotation"></param>
         /// <param name="isVoid"></param>
-        [JsonConstructor]
+
         public Sweep(Profile @profile, BoundedCurve @curve, double @startSetback, double @endSetback, double @profileRotation, bool @isVoid)
             : base(isVoid)
         {
@@ -55,6 +64,7 @@ public Profile Profile
         /// <summary>The curve along which the profile will be swept.</summary>
         [JsonPropertyName("Curve")]
         [JsonInclude]
+        [JsonConverter(typeof(ElementConverter<BoundedCurve>))]
         public BoundedCurve Curve
         {
             get { return _curve; }
diff --git a/Elements/src/Serialization/JSON/LineConverter.cs b/Elements/src/Serialization/JSON/LineConverter.cs
new file mode 100644
index 000000000..d7744ac9b
--- /dev/null
+++ b/Elements/src/Serialization/JSON/LineConverter.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Elements.Geometry;
+
+namespace Elements.Serialization.JSON
+{
+    internal class LineConverter : JsonConverter<Line>
+    {
+        public override Line Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            Vector3 start = default;
+            Vector3 end = default;
+
+            while (reader.Read())
+            {
+                if (reader.TokenType == JsonTokenType.PropertyName)
+                {
+                    var propertyName = reader.GetString();
+                    reader.Read();
+                    switch (propertyName)
+                    {
+                        case "Start":
+                            start = JsonSerializer.Deserialize<Vector3>(ref reader, options);
+                            break;
+                        case "End":
+                            end = JsonSerializer.Deserialize<Vector3>(ref reader, options);
+                            break;
+                    }
+                }
+
+                if (reader.TokenType == JsonTokenType.EndObject)
+                {
+                    return new Line(start, end);
+                }
+            }
+
+            throw new JsonException("Error reading Line object.");
+        }
+
+        public override void Write(Utf8JsonWriter writer, Line value, JsonSerializerOptions options)
+        {
+            writer.WriteStartObject();
+
+            writer.WritePropertyName("Start");
+            JsonSerializer.Serialize(writer, value.Start, options);
+
+            writer.WritePropertyName("End");
+            JsonSerializer.Serialize(writer, value.End, options);
+
+            writer.WriteEndObject();
+        }
+    }
+}
diff --git a/Elements/src/Serialization/JSON/PolygonConverter.cs b/Elements/src/Serialization/JSON/PolygonConverter.cs
new file mode 100644
index 000000000..b87f8a50a
--- /dev/null
+++ b/Elements/src/Serialization/JSON/PolygonConverter.cs
@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Elements.Geometry;
+
+namespace Elements.Serialization.JSON
+{
+    internal class PolygonConverter : JsonConverter<Polygon>
+    {
+        public override Polygon Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+                var vertices = new List<Vector3>();
+
+                foreach (var vObj in root.GetProperty("Vertices").EnumerateArray())
+                {
+                    var x = vObj.GetProperty("X").GetDouble();
+                    var y = vObj.GetProperty("Y").GetDouble();
+                    var z = vObj.GetProperty("Z").GetDouble();
+                    vertices.Add(new Vector3(x, y, z));
+                }
+
+                return new Polygon(vertices);
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, Polygon value, JsonSerializerOptions options)
+        {
+            writer.WriteStartObject();
+
+            writer.WritePropertyName("Vertices");
+            writer.WriteStartArray();
+            foreach (var vertex in value.Vertices)
+            {
+                writer.WriteStartObject();
+                writer.WritePropertyName("X");
+                writer.WriteNumberValue(vertex.X);
+                writer.WritePropertyName("Y");
+                writer.WriteNumberValue(vertex.Y);
+                writer.WritePropertyName("Z");
+                writer.WriteNumberValue(vertex.Z);
+                writer.WriteEndObject();
+            }
+            writer.WriteEndArray();
+
+            writer.WriteEndObject();
+        }
+    }
+}
diff --git a/Elements/src/Serialization/JSON/PolylineConverter.cs b/Elements/src/Serialization/JSON/PolylineConverter.cs
new file mode 100644
index 000000000..ba0eba0ca
--- /dev/null
+++ b/Elements/src/Serialization/JSON/PolylineConverter.cs
@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Elements.Geometry;
+
+namespace Elements.Serialization.JSON
+{
+    internal class PolylineConverter : JsonConverter<Polyline>
+    {
+        public override Polyline Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            using (var doc = JsonDocument.ParseValue(ref reader))
+            {
+                var root = doc.RootElement;
+                var vertices = new List<Vector3>();
+
+                foreach (var vObj in root.GetProperty("Vertices").EnumerateArray())
+                {
+                    var x = vObj.GetProperty("X").GetDouble();
+                    var y = vObj.GetProperty("Y").GetDouble();
+                    var z = vObj.GetProperty("Z").GetDouble();
+                    vertices.Add(new Vector3(x, y, z));
+                }
+
+                return new Polyline(vertices);
+            }
+        }
+
+        public override void Write(Utf8JsonWriter writer, Polyline value, JsonSerializerOptions options)
+        {
+            writer.WriteStartObject();
+
+            writer.WritePropertyName("Vertices");
+            writer.WriteStartArray();
+            foreach (var vertex in value.Vertices)
+            {
+                writer.WriteStartObject();
+                writer.WritePropertyName("X");
+                writer.WriteNumberValue(vertex.X);
+                writer.WritePropertyName("Y");
+                writer.WriteNumberValue(vertex.Y);
+                writer.WritePropertyName("Z");
+                writer.WriteNumberValue(vertex.Z);
+                writer.WriteEndObject();
+            }
+            writer.WriteEndArray();
+
+            writer.WriteEndObject();
+        }
+    }
+}
diff --git a/Elements/src/Serialization/JSON/SolidConverter.cs b/Elements/src/Serialization/JSON/SolidConverter.cs
index a6684bf29..844a1f968 100644
--- a/Elements/src/Serialization/JSON/SolidConverter.cs
+++ b/Elements/src/Serialization/JSON/SolidConverter.cs
@@ -70,7 +70,7 @@ public override Solid Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
                 //     foreach (JObject heobj in (JArray)face.GetValue("outer"))
 
                 var root = obj.RootElement;
-                var typeName = root.GetProperty("type").GetString();
+                var typeName = root.GetProperty("Type").GetString();
                 var foundType = _solidTypes.FirstOrDefault(t => t.FullName.ToLower() == typeName);
                 if (foundType == null)
                 {
@@ -79,28 +79,28 @@ public override Solid Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSe
 
                 var solid = (Solid)Activator.CreateInstance(foundType, new object[] { });
 
-                foreach (var vobj in root.GetProperty("vertices").EnumerateArray())
+                foreach (var vobj in root.GetProperty("Vertices").EnumerateArray())
                 {
-                    var id = (uint)vobj.GetProperty("id").GetInt64();
-                    var x = vobj.GetProperty("x").GetDouble();
-                    var y = vobj.GetProperty("y").GetDouble();
-                    var z = vobj.GetProperty("z").GetDouble();
+                    var id = (uint)vobj.GetProperty("Id").GetInt64();
+                    var x = vobj.GetProperty("X").GetDouble();
+                    var y = vobj.GetProperty("Y").GetDouble();
+                    var z = vobj.GetProperty("Z").GetDouble();
                     solid.AddVertex(id, new Vector3(x, y, z));
                 }
 
-                foreach (var face in root.GetProperty("faces").EnumerateArray())
+                foreach (var face in root.GetProperty("Faces").EnumerateArray())
                 {
-                    var id = (uint)face.GetProperty("id").GetInt64();
+                    var id = (uint)face.GetProperty("Id").GetInt64();
 
                     var outer = new Loop();
 
-                    foreach (var heobj in face.GetProperty("outer").EnumerateArray())
+                    foreach (var heobj in face.GetProperty("Outer").EnumerateArray())
                     {
                         ReadHalfEdge(heobj, outer, solid);
                     }
 
                     var inners = new List<Loop>();
-                    if (face.TryGetProperty("inner", out var innerobjs))
+                    if (face.TryGetProperty("Inner", out var innerobjs))
                     {
                         foreach (var innerobj in innerobjs.EnumerateArray())
                         {
@@ -150,37 +150,37 @@ private void ReadHalfEdge(JsonElement heobj, Loop loop, Solid solid)
         public override void Write(Utf8JsonWriter writer, Solid value, JsonSerializerOptions options)
         {
             writer.WriteStartObject();
-            writer.WritePropertyName("type");
+            writer.WritePropertyName("Type");
             writer.WriteStringValue(value.GetType().FullName.ToLower());
 
-            writer.WritePropertyName("vertices");
+            writer.WritePropertyName("Vertices");
             writer.WriteStartArray();
             foreach (var v in value.Vertices.Values)
             {
                 writer.WriteStartObject();
-                writer.WritePropertyName("id");
+                writer.WritePropertyName("Id");
                 writer.WriteNumberValue(v.Id);
-                writer.WritePropertyName("x");
+                writer.WritePropertyName("X");
                 writer.WriteNumberValue(v.Point.X);
-                writer.WritePropertyName("y");
+                writer.WritePropertyName("Y");
                 writer.WriteNumberValue(v.Point.Y);
-                writer.WritePropertyName("z");
+                writer.WritePropertyName("Z");
                 writer.WriteNumberValue(v.Point.Z);
                 writer.WriteEndObject();
             }
             writer.WriteEndArray();
 
-            writer.WritePropertyName("faces");
+            writer.WritePropertyName("Faces");
             writer.WriteStartArray();
 
             foreach (var f in value.Faces.Values)
             {
                 writer.WriteStartObject();
 
-                writer.WritePropertyName("id");
+                writer.WritePropertyName("Id");
                 writer.WriteNumberValue(f.Id);
 
-                writer.WritePropertyName("outer");
+                writer.WritePropertyName("Outer");
                 writer.WriteStartArray();
                 foreach (var he in f.Outer.Edges)
                 {
@@ -190,7 +190,7 @@ public override void Write(Utf8JsonWriter writer, Solid value, JsonSerializerOpt
 
                 if (f.Inner != null)
                 {
-                    writer.WritePropertyName("inner");
+                    writer.WritePropertyName("Inner");
                     writer.WriteStartArray();
 
                     foreach (var loop in f.Inner)
diff --git a/Elements/src/StructuralFraming.cs b/Elements/src/StructuralFraming.cs
index 995327586..84524ed47 100644
--- a/Elements/src/StructuralFraming.cs
+++ b/Elements/src/StructuralFraming.cs
@@ -15,7 +15,7 @@ public abstract class StructuralFraming : GeometricElement
         /// <summary>
         /// The center line of the framing element.
         /// </summary>
-        [JsonConverter(typeof(ElementConverter<Curve>))]
+        [JsonConverter(typeof(ElementConverter<BoundedCurve>))]
         public BoundedCurve Curve { get; set; }
 
         /// <summary>
diff --git a/Elements/test/ArcTests.cs b/Elements/test/ArcTests.cs
index e4e2f0d37..cd4f74bfb 100644
--- a/Elements/test/ArcTests.cs
+++ b/Elements/test/ArcTests.cs
@@ -445,7 +445,7 @@ private void TestPointAtNormalized(BoundedCurve curve)
 
             // The start, end, and mid points are the same, but we also want to ensure
             // that the curve didn't flip directions as well. We do this by testing
-            // another random parameter. 
+            // another random parameter.
             Assert.Equal(curve.PointAt(equivalentTestParam), curve.PointAtNormalized(testParam));
         }
 
diff --git a/Elements/test/Grid1dTests.cs b/Elements/test/Grid1dTests.cs
index 512af16ec..3d72c1ed7 100644
--- a/Elements/test/Grid1dTests.cs
+++ b/Elements/test/Grid1dTests.cs
@@ -5,6 +5,8 @@
 using Elements.Geometry;
 using System.Collections.Generic;
 using System.Text.Json;
+using System.Text.Json.Serialization;
+using Elements.Serialization.JSON;
 
 namespace Elements.Tests
 {
@@ -160,7 +162,20 @@ public void Grid1dSerializes()
             var grid = new Grid1d(polyline);
             grid.DivideByCount(4);
             grid[3].DivideByFixedLength(0.4);
-            var json = JsonSerializer.Serialize(grid);
+
+            var options = new JsonSerializerOptions()
+            {
+                PropertyNameCaseInsensitive = true,
+                AllowTrailingCommas = true,
+                IncludeFields = true,
+                DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
+            };
+
+            options.Converters.Add(new ElementConverterFactory());
+            options.Converters.Add(new PolylineConverter());
+            options.Converters.Add(new ElementConverter<BoundedCurve>());
+
+            var json = JsonSerializer.Serialize(grid, options);
             var deserialized = Element.Deserialize<Grid1d>(json);
             Assert.Equal(grid.GetCells().Count, deserialized.GetCells().Count);
             Assert.Equal(0, (grid.Curve as Polyline).Start.DistanceTo((deserialized.Curve as Polyline).Start));

From 25ecdca478852ee4c4e6e89fbe3835c80e804472 Mon Sep 17 00:00:00 2001
From: Anthonie Kramer <anthoniekramer@gmail.com>
Date: Thu, 7 Dec 2023 09:09:38 -0800
Subject: [PATCH 150/150] trying to get Grid1d to deserialize correctly

---
 Elements/src/Spatial/Grid1d.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Elements/src/Spatial/Grid1d.cs b/Elements/src/Spatial/Grid1d.cs
index 80cd567d6..954d2e46a 100644
--- a/Elements/src/Spatial/Grid1d.cs
+++ b/Elements/src/Spatial/Grid1d.cs
@@ -20,11 +20,13 @@ public class Grid1d
         /// <summary>
         /// An optional type designation for this cell.
         /// </summary>
+        [JsonPropertyName("Type")]
         public string Type { get; set; }
 
         /// <summary>
         /// Child cells of this Grid. If null, this Grid is a complete cell with no subdivisions.
         /// </summary>
+        [JsonPropertyName("Cells")]
         public List<Grid1d> Cells
         {
             get => cells;
@@ -39,6 +41,7 @@ public List<Grid1d> Cells
         /// <summary>
         /// Numerical domain of this Grid
         /// </summary>
+        [JsonPropertyName("Domain")]
         public Domain1d Domain { get; }
 
         /// <summary>