diff --git a/README.md b/README.md
index 03c0628c..c9625501 100644
--- a/README.md
+++ b/README.md
@@ -392,14 +392,6 @@ If true then the `raycast` functions of the loaded tile objects are overriden to
 
 If you would like to manage raycasting against tiles yourself this behavior can be disabled if needed by setting `optizeRaycast` to false.
 
-### .preprocessURL
-
-```js
-preprocessURL = null : ( uri : string | URL ) => string | URL;
-```
-
-Function to preprocess the url for each individual tile geometry or child tile set to be loaded. If null then the url is used directly.
-
 ### .lruCache
 
 ```js
@@ -446,6 +438,14 @@ manager : LoadingManager
 
 The manager used when loading tile geometry.
 
+### .loadProgress
+
+```js
+readOnly loadProgress : Number
+```
+
+Returns the total load progress between `[0, 1]`. Progress is measured since the last set of loading tiles completed.
+
 ### .constructor
 
 ```js
diff --git a/src/base/TilesRendererBase.js b/src/base/TilesRendererBase.js
index 9ed11336..5500b0e6 100644
--- a/src/base/TilesRendererBase.js
+++ b/src/base/TilesRendererBase.js
@@ -87,7 +87,7 @@ export class TilesRendererBase {
 
 	}
 
-	get loadPercent() {
+	get loadProgress() {
 
 		const stats = this.stats;
 		const loading = stats.downloading + stats.parsing;