Update app.py

app.py

@@ -500,6 +500,16 @@ with gr.Blocks(css=css) as demo:
                 document.getElementById(\"reset_cam\").dispatchEvent(evt);
               } 
               try {
+                BABYLON.Engine.LastCreatedScene.onKeyboardObservable.add((kbInfo) => {
+                  switch (kbInfo.type) {
+                    case BABYLON.KeyboardEventTypes.KEYDOWN:
+                      console.log("KEY DOWN: ", kbInfo.event.key);
+                      break;
+                    case BABYLON.KeyboardEventTypes.KEYUP:
+                      console.log("KEY UP: ", kbInfo.event.code);
+                      break;
+                  }
+                });
               if (!BABYLON.Engine.LastCreatedScene.activeCamera.metadata.gizmoManager) {
                 var metadata = BABYLON.Engine.LastCreatedScene.activeCamera.metadata;
                 metadata.gizmoManager = new BABYLON.GizmoManager(BABYLON.Engine.LastCreatedScene, 8);