Update app.py

app.py

@@ -45,10 +45,14 @@ def tryon_to_3d(person_img, garment_img, seed, randomize_seed):
         return None, "Try-on failed"
 
     try:
-        # Positional arguments only; no keyword args
+        # Convert NumPy arrays to PNG bytes
+        _, tryon_bytes = cv2.imencode('.png', tryon_img)
+        _, garment_bytes = cv2.imencode('.png', garment_img)
+
+        # Send bytes (Hunyuan3D Gradio API accepts file-like input)
         result_3d = hunyuan_client.predict(
-            tryon_img,   # first argument
-            garment_img, # second argument
+            tryon_bytes.tobytes(),
+            garment_bytes.tobytes(),
             fn_index=fn_index_default
         )
         return result_3d, tryon_info