Feature/draco import

index.html

@@ -16,6 +16,7 @@
     <script src="libs/dat.gui.min.js"></script>
     <script src="libs/stats.min.js"></script>
 
+	<script src="https://www.gstatic.com/draco/v1/decoders/draco_decoder_gltf.js"></script>
     <script src="dist/gltf-sample-viewer.umd.js"></script>
 </head>
 <script>

src/draco.js

@@ -0,0 +1,23 @@
+
+class DracoDecoder {
+
+    constructor() {
+        this.module = null;
+
+        this.initializingPromise = new Promise(resolve => {
+            let dracoDecoderType = {};
+            dracoDecoderType['onModuleLoaded'] = dracoDecoderModule => {
+                this.module = dracoDecoderModule;
+                resolve();
+            };
+            DracoDecoderModule(dracoDecoderType);
+        });
+    }
+
+    async ready() {
+        return this.initializingPromise;
+    }
+
+}
+
+export { DracoDecoder };

src/main.js

@@ -1,8 +1,9 @@
 import { gltfViewer } from './viewer.js';
 import { gltfInput } from './input.js';
 import { WebGl } from './webgl.js';
+import { DracoDecoder } from './draco.js';
 
-function gltfSampleViewer(
+async function gltfSampleViewer(
     canvasId,
     index,
     envMap = "Courtyard of the Doge's palace",
@@ -28,7 +29,10 @@ function gltfSampleViewer(
     input.setupGlobalInputBindings(document);
     input.setupCanvasInputBindings(canvas);
 
-    new gltfViewer(canvas, index, input, onRendererReady, basePath, initialModel, envMap);
+    const dracoDecoder = new DracoDecoder();
+    await dracoDecoder.ready();
+
+    new gltfViewer(canvas, index, input, onRendererReady, basePath, initialModel, envMap, dracoDecoder);
 }
 
 function getWebGlContext(canvas)

src/model_path_provider.js

@@ -7,7 +7,7 @@ import {
 
 class gltfModelPathProvider
 {
-    constructor(modelIndexerPath, ignoredVariants = ["glTF-Draco", "glTF-Embedded"])
+    constructor(modelIndexerPath, ignoredVariants = ["glTF-Embedded"])
     {
         this.modelIndexerPath = modelIndexerPath;
         this.ignoredVariants = ignoredVariants;