Add application file

app.py

@@ -9,6 +9,25 @@ def greet(n):
 
 
 with gr.Blocks() as demo:
+
+    demo.load(
+        _js="""
+        () => {
+            const viewer = document.querySelector('.gr-model3d').viewer;
+            const scene = viewer.scene;
+            
+            // 添加环境光
+            const ambientLight = new THREE.AmbientLight(0xffffff, 1.5);
+            scene.add(ambientLight);
+            
+            // 添加方向光
+            const directionalLight = new THREE.DirectionalLight(0xffffff, 1.5);
+            directionalLight.position.set(5, 5, 5);
+            scene.add(directionalLight);
+        }
+        """
+    )
+    
     model3d = LitModel3D(label="MESH", exposure=10, height=300)