Update app.py

app.py

@@ -215,7 +215,7 @@ def step4_track(session_id):
 
 # New: run all steps sequentially
 @spaces.GPU()
-def generate_results_and_mesh(image, session_id):
+def generate_results_and_mesh(image, session_id=None):
 
     """
     Process an input image through a 3D reconstruction pipeline and return the intermediate outputs and mesh file.
@@ -240,7 +240,9 @@ def generate_results_and_mesh(image, session_id):
             - track_img (Image or None): Tracking/registration result.
             - mesh_file (str or None): Path to the generated 3D mesh (`.ply`), if found.
     """
-    
+    if session_id is None:
+        session_id = uuid.uuid4().hex
+         
     # Step 1
     status1, crop_img, _, _ = preprocess_image(image, session_id)
     if "❌" in status1:
@@ -322,10 +324,11 @@ with gr.Blocks(css=css) as demo:
         
                 examples = gr.Examples(
                     examples=[
-                        ["example_images/jim_carrey.png", None],
-                        ["example_images/margaret_qualley.png", None],
+                        ["example_images/jennifer_lawrence.png"],
+                        ["example_images/jim_carrey.png"],
+                        ["example_images/margaret_qualley.png"],
                     ],
-                    inputs=[image_in, session_state],
+                    inputs=[image_in],
                     outputs=[status, crop_img, normals_img, uv_img, track_img, mesh_file],
                     fn=generate_results_and_mesh,
                     cache_examples=True