Update app.py

app.py

@@ -601,7 +601,7 @@ async(c, o, p, d, n, m)=>{
         BABYLON.Engine.LastCreatedScene.activeCamera.metadata.pipeline.imageProcessing.contrast = 1.0;
         BABYLON.Engine.LastCreatedScene.activeCamera.metadata.pipeline.imageProcessing.exposure = 1.0;
 
-        BABYLON.Engine.LastCreatedScene.activeCamera.fov = document.getElementById("zoom").value;
+        BABYLON.Engine.LastCreatedScene.activeCamera.detachControl(document.getElementById("model3D").getElementsByTagName("canvas")[0]);
         BABYLON.Engine.LastCreatedScene.activeCamera.inertia = 0.0;
         //pan
         BABYLON.Engine.LastCreatedScene.activeCamera.panningInertia = 0.0;
@@ -612,6 +612,9 @@ async(c, o, p, d, n, m)=>{
         BABYLON.Engine.LastCreatedScene.activeCamera.wheelDeltaPercentage = 1/256;
         BABYLON.Engine.LastCreatedScene.activeCamera.upperRadiusLimit = 1.57 / 0.8;
         BABYLON.Engine.LastCreatedScene.activeCamera.lowerRadiusLimit = 0.157 / 0.8;
+        BABYLON.Engine.LastCreatedScene.activeCamera.attachControl(document.getElementById("model3D").getElementsByTagName("canvas")[0], false);
+        alert(BABYLON.Engine.LastCreatedScene.activeCamera.inertia);
+        BABYLON.Engine.LastCreatedScene.activeCamera.fov = document.getElementById("zoom").value;
 
         document.getElementById("model3D").getElementsByTagName("canvas")[0].style.filter = "blur(" + Math.ceil(Math.log2(Math.PI/document.getElementById("zoom").value))/2.0*Math.sqrt(2.0) + "px)";
         document.getElementById("model3D").getElementsByTagName("canvas")[0].oncontextmenu = function(e){e.preventDefault();}