Update app.py

app.py

@@ -773,7 +773,6 @@ async(c, o, p, d, n, m, s)=>{
 
         function requestMap() {
         try {
-        alert(ctx);
           ctx.drawImage(video, 0, 0, video.videoWidth, video.videoHeight);
           if (buffer) {
             counter = parseInt(video.currentTime);
@@ -782,7 +781,8 @@ async(c, o, p, d, n, m, s)=>{
           }
           buffer = ctx.getImageData(0, 0, video.videoWidth, video.videoHeight).data;
           applyDisplacementMapFromBuffer(videoDomeMesh, buffer, video.videoWidth, video.videoHeight, 0, 1, null, null, true);
-          setTimeout(requestMap, 1000);
+          alert('!');
+          requestAnimationFrame(requestMap);
         } catch(e) {alert(e)}
         }
         window.requestMap = requestMap;
@@ -1008,6 +1008,7 @@ window.videoPlay = videoPlay;
         uvScale,
         forceUpdate
     ) {
+      try {
         if (!mesh.isVerticesDataPresent(BABYLON.VertexBuffer.NormalKind)) {
             let positions = mesh.getVerticesData(BABYLON.VertexBuffer.PositionKind);
             let normals = [];
@@ -1051,6 +1052,7 @@ window.videoPlay = videoPlay;
         }
         mesh.setVerticesData(BABYLON.VertexBuffer.PositionKind, positions);
         return mesh;
+    } catch(e) {alert(e)}
     }
     window.applyDisplacementMapFromBuffer = applyDisplacementMapFromBuffer;