mrdoob
diff --git a/‎examples/jsm/loaders/USDLoader.js‎
Lines changed: 19 additions & 6 deletions b/‎examples/jsm/loaders/USDLoader.js‎
Lines changed: 19 additions & 6 deletions
@@ -8,13 +8,14 @@ import { USDAParser } from './usd/USDAParser.js';
 import { USDCParser } from './usd/USDCParser.js';
 
 /**
- * A loader for the USDZ format.
+ * A loader for the USD format (USDA, USDC, USDZ).
  *
- * USDZ files that use USDC internally are not yet supported, only USDA.
+ * Supports both ASCII (USDA) and binary (USDC) USD files, as well as
+ * USDZ archives containing either format.
  *
  * ```js
- * const loader = new USDZLoader();
- * const model = await loader.loadAsync( 'saeukkang.usdz' );
+ * const loader = new USDLoader();
+ * const model = await loader.loadAsync( 'model.usdz' );
  * scene.add( model );
  * ```
  *
@@ -97,13 +98,18 @@ class USDLoader extends Loader {
 
 			for ( const filename in zip ) {
 
-				if ( filename.endsWith( 'png' ) ) {
+				if ( filename.endsWith( 'png' ) || filename.endsWith( 'jpg' ) || filename.endsWith( 'jpeg' ) ) {
 
-					const blob = new Blob( [ zip[ filename ] ], { type: 'image/png' } );
+					const type = filename.endsWith( 'png' ) ? 'image/png' : 'image/jpeg';
+					const blob = new Blob( [ zip[ filename ] ], { type } );
 					data[ filename ] = URL.createObjectURL( blob );
 
 				}
 
+			}
+
+			for ( const filename in zip ) {
+
 				if ( filename.endsWith( 'usd' ) || filename.endsWith( 'usda' ) || filename.endsWith( 'usdc' ) ) {
 
 					if ( isCrateFile( zip[ filename ] ) ) {
@@ -208,6 +214,13 @@ class USDLoader extends Loader {
 
 		const file = findUSD( zip );
 
+		// Check if the main file is USDC (binary) or USDA (ASCII)
+		if ( isCrateFile( file ) ) {
+
+			return usdc.parse( file.buffer, assets );
+
+		}
+
 		const text = fflate.strFromU8( file );
 
 		return usda.parse( text, assets );