Upload app.py

app.py

@@ -21,10 +21,30 @@ if os.path.exists(packages_dir):
 def check_complex_dependencies():
     """Check if complex dependencies are available"""
     try:
-        import torch_sparse
-        import torch_scatter
         import nvdiffrast
         import pytorch3d
+        
+        # Check if torch-sparse is available or disabled
+        try:
+            import torch_sparse
+        except ImportError:
+            # Check if torch-sparse was disabled
+            try:
+                with open("NeuralJacobianFields/PoissonSystem.py", 'r') as f:
+                    content = f.read()
+                if "USE_TORCH_SPARSE = False" in content:
+                    print("torch-sparse is disabled, using built-in PyTorch sparse operations")
+                else:
+                    return False
+            except:
+                return False
+        
+        # Check if torch-scatter is available (not critical)
+        try:
+            import torch_scatter
+        except ImportError:
+            print("torch-scatter not available, but this may not be critical")
+        
         return True
     except ImportError:
         return False