Merge pull request #967 from cx20/fix/babylon-lite-drag-and-drop

fix(babylon-lite): repair drag & drop, and let Lite load the Draco/meshopt decoders

Author: cx20

examples/babylon-lite/index.html

@@ -28,29 +28,10 @@
 <!-- dat.gui.js -->
 <script src="../../libs/common/dat.gui.js"></script>
 
-<!-- Draco decoder for KHR_draco_mesh_compression support.
-     Lite checks globalThis.DracoDecoderModule first; if present, uses it directly
-     instead of fetching from the (nonexistent) site root. The wrapper overrides
-     locateFile so the WASM is resolved from the same libs directory. -->
-<script src="../../libs/babylonjs/9.4.1/draco_decoder.js"></script>
-<script>
-(function() {
-    var orig = window.DracoDecoderModule;
-    if (typeof orig !== 'function') return;
-    var base = new URL("../../libs/babylonjs/9.4.1/", document.baseURI).href;
-    window.DracoDecoderModule = function(cfg) {
-        return orig(Object.assign({}, cfg, {
-            locateFile: function(f) { return base + f; }
-        }));
-    };
-})();
-</script>
-
-<!-- meshopt decoder for EXT_meshopt_compression support.
-     Lite checks globalThis.MeshoptDecoder first; if present, uses it directly
-     instead of fetching from the (nonexistent) site root. The WASM is inlined
-     in this file, so no locateFile override is needed. -->
-<script src="../../libs/babylonjs/9.4.1/meshopt_decoder.js"></script>
+<!-- The Draco (KHR_draco_mesh_compression) and meshopt (EXT_meshopt_compression)
+     decoders are not loaded here: index.js points Lite at ../../libs/babylonjs/9.4.1/
+     via setDracoBaseUrl() / setMeshoptBaseUrl(), and Lite injects each decoder itself,
+     lazily, only when an asset actually uses that extension. -->
 
 <canvas id="renderCanvas"></canvas>
 <div id="dropZone" class="drop-zone hidden">