Update app.py

app.py

@@ -593,7 +593,10 @@ async(c, o, p, d, n, m, s)=>{
           }*/
           BABYLON.Engine.LastCreatedScene.getAnimationRatio();
         });
+        var CoT = new BABYLON.TransformNode("root");
         BABYLON.Engine.LastCreatedScene.activeCamera = new BABYLON.ArcRotateCamera("camera", 0, Math.PI / 2, 1.0, new BABYLON.Vector3(0, 0, 0));
+        CoT.parent = BABYLON.Engine.LastCreatedScene.activeCamera;
+        BABYLON.Engine.LastCreatedScene.activeCamera.target = CoT;
         
         if (!BABYLON.Engine.LastCreatedScene.activeCamera.metadata) {
           BABYLON.Engine.LastCreatedScene.activeCamera.metadata = {