fix: Not using unsupported System.Threading.Task.Run in WebGL builds (

fixes #131)

ChangeLog.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Had to bring back `GltfAsset.isDone` for render tests
 ### Fixed
+- WebGL loading by not using unsupported `System.Threading.Task.Run` (fixes #131)
 - Escaped, relative buffer/texture URIs now work on local file system consistently 
 - Rendertests work again
 

Runtime/Scripts/GltFast.cs

@@ -13,6 +13,10 @@
 // limitations under the License.
 //
 
+#if !UNITY_WEBGL || UNITY_EDITOR
+#define GLTFAST_THREADS
+#endif
+
 // #define MEASURE_TIMINGS
 
 using System;
@@ -36,10 +40,6 @@
 using GLTFast.Tests;
 #endif
 
-#if KTX_UNITY
-
-#endif // KTX_UNITY
-
 [assembly: InternalsVisibleTo("glTFastEditorTests")]
 
 namespace GLTFast {
@@ -285,7 +285,7 @@ async Task LoadContent() {
         async Task<bool> ParseJsonAndLoadBuffers( string json, Uri baseUri ) {
 
             var predictedTime = json.Length / (float)k_JsonParseSpeed;
-#if !MEASURE_TIMINGS
+#if GLTFAST_THREADS && !MEASURE_TIMINGS
             if (deferAgent.ShouldDefer(predictedTime)) {
                 // JSON is larger than threshold
                 // => parse in a thread
@@ -749,14 +749,14 @@ void LoadBuffer( int index, Uri url ) {
         async Task<Tuple<byte[],string>> DecodeEmbedBufferAsync(string encodedBytes,bool timeCritical = false) {
             var predictedTime = encodedBytes.Length / (float)k_Base64DecodeSpeed;
 #if MEASURE_TIMINGS
-            await deferAgent.BreakPoint(predictedTime);
             var stopWatch = new Stopwatch();
             stopWatch.Start();
-#else
+#elif GLTFAST_THREADS
             if (!timeCritical || deferAgent.ShouldDefer(predictedTime)) {
                 return await Task.Run(() => DecodeEmbedBuffer(encodedBytes));
             }
 #endif
+            await deferAgent.BreakPoint(predictedTime);
             var decodedBuffer = DecodeEmbedBuffer(encodedBytes);
 #if MEASURE_TIMINGS
             stopWatch.Stop();