Change face indices

app.py

@@ -65,7 +65,7 @@ def main():
             with gr.Column():
                 video = gr.Video()
             with gr.Column():
-                model = gr.File()
+                model = gr.Model3D()
         
         button.click(fn=generate, inputs=inputs, outputs=[video, model])
         

utils.py

@@ -136,4 +136,4 @@ def save_obj(points, out_path):
         for v in verts:
             out_file.write("v " + " ".join(map(str, v)) + "\n")
         for f in faces:
-            out_file.write("f " + " ".join(map(str, f)) + "\n")
+            out_file.write("f " + " ".join([str(x + 1) for x in  f]) + "\n")