-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathbvh-skin.html
275 lines (185 loc) · 8.11 KB
/
bvh-skin.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bvh_Colision_Sample</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
</head>
<style>
body {
margin: 0;
overflow: hidden;
}
</style>
<body>
<script type="importmap">
{
"imports": {
"three": "./three.module.js",
"three/addons/": "./jsm/",
"three-mesh-bvh": "https://cdn.jsdelivr.net/npm/[email protected]/build/index.module.js"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { GLTFLoader } from 'three/addons/GLTFLoader.js';
import Stats from 'three/addons/stats.module.js';
import { GUI } from 'three/addons/lil-gui.module.min.js';
import { computeBoundsTree, MeshBVHHelper, getBVHExtremes, StaticGeometryGenerator, MeshBVH } from 'three-mesh-bvh';
import { OrbitControls } from 'three/addons/OrbitControls.js';
THREE.BufferGeometry.prototype.computeBoundsTree = computeBoundsTree;
const params = {
display: true,
displayOriginal: true,
material: 'wireframe',
updatePositionOnly: false,
skeletonHelper: false,
bvhHelper: true,
bvhHelperDepth: 10,
autoUpdate: true,
updateRate: 0,
pause: false
};
let renderer, camera, scene, clock, gui, stats;
let outputContainer;
let controls, mixer, animationAction, model;
let bvhHelper, skeletonHelper, meshHelper, staticGeometryGenerator;
let timeSinceUpdate = 0;
let initialExtremes = null;
let wireframeMaterial, normalMaterials, originalMaterials;
init();
render();
function init() {
const bgColor = 0x111111;
outputContainer = document.getElementById('output');
// renderer setup
renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.setClearColor(bgColor, 1);
document.body.appendChild(renderer.domElement);
// scene setup
scene = new THREE.Scene();
scene.add(new THREE.AmbientLight(0xb0bec5, 2.4));
// camera setup
camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.001, 50);
camera.position.z = .1
controls = new OrbitControls(camera, renderer.domElement);
clock = new THREE.Clock();
// stats setup
stats = new Stats();
document.body.appendChild(stats.dom);
// load the model
///models/ani_lowpoly/scene.gltf
new GLTFLoader()
.load('models/ani_lowpoly/scene.gltf', gltf => {
// prep the model and add it to the scene
model = gltf.scene;
console.log(gltf)
model.updateMatrixWorld(true);
scene.add(model);
// skeleton helper
skeletonHelper = new THREE.SkeletonHelper(model);
skeletonHelper.visible = false;
scene.add(skeletonHelper);
// animations
const animations = gltf.animations;
mixer = new THREE.AnimationMixer(model);
animationAction = mixer.clipAction(animations[0]);
animationAction.play();
animationAction.paused = params.pause;
//1 -> 4
console.log(model.children[0].children[0].children[0].children[0].children[0].children )
const bvh = new MeshBVH(model.children[0].children[0].children[0].children[0].children[0].children[1].geometry)
console.log(bvh)
// prep the geometry
staticGeometryGenerator = new StaticGeometryGenerator(model);
originalMaterials = staticGeometryGenerator.getMaterials();
normalMaterials = originalMaterials.map(m => {
return new THREE.MeshNormalMaterial({
normalMap: m.normalMap
});
});
wireframeMaterial = new THREE.MeshBasicMaterial({
wireframe: true,
transparent: true,
opacity: 0.05,
depthWrite: false,
});
meshHelper = new THREE.Mesh(new THREE.BufferGeometry(), wireframeMaterial);
meshHelper.receiveShadow = true;
scene.add(meshHelper);
bvhHelper = new MeshBVHHelper(meshHelper, 10);
scene.add(bvhHelper);
});
window.addEventListener('resize', function () {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}, false);
}
// regenerate the mesh and bvh
function regenerateMesh() {
if (meshHelper) {
let generateTime, refitTime, startTime;
// time the geometry generation
startTime = window.performance.now();
staticGeometryGenerator.generate(meshHelper.geometry);
generateTime = window.performance.now() - startTime;
// time the bvh refitting
startTime = window.performance.now();
if (!meshHelper.geometry.boundsTree) {
meshHelper.geometry.computeBoundsTree();
refitTime = '-';
} else {
meshHelper.geometry.boundsTree.refit();
refitTime = (window.performance.now() - startTime).toFixed(2);
}
bvhHelper.update();
timeSinceUpdate = 0;
const extremes = getBVHExtremes(meshHelper.geometry.boundsTree);
if (initialExtremes === null) {
initialExtremes = extremes;
}
let score = 0;
let initialScore = 0;
for (const i in extremes) {
score += extremes[i].surfaceAreaScore;
initialScore += initialExtremes[i].surfaceAreaScore;
}
const degradation = (score / initialScore) - 1.0;
// update time display
// outputContainer.innerHTML =
// `mesh generation time: ${ generateTime.toFixed( 2 ) } ms\n` +
// `refit time: ${ refitTime } ms\n` +
// `bvh degradation: ${ ( 100 * degradation ).toFixed( 2 ) }%`;
}
}
function render() {
controls.update();
stats.update();
requestAnimationFrame(render);
const delta = Math.min(clock.getDelta(), 30 * 0.001);
// update animation and helpers
if (mixer) {
mixer.update(delta);
skeletonHelper.visible = params.skeletonHelper;
meshHelper.visible = params.display;
bvhHelper.visible = params.bvhHelper;
model.visible = params.displayOriginal;
}
// refit on a cycle
if (params.autoUpdate && !params.pause) {
if (timeSinceUpdate > params.updateRate) {
regenerateMesh();
}
timeSinceUpdate += delta;
} else {
timeSinceUpdate = 0;
}
renderer.render(scene, camera);
}
</script>
</body>
</html>