Update app.py

app.py

@@ -476,7 +476,7 @@ def process_image_and_generate_stl(image_input, depth_near, depth_far, thickness
         vertex_colors=True,
         scene_lights=True,
         prepare_for_3d_printing=True,
-        lift_height=lift
+        lift_height=-lift
     )
 
     return stl_path # Return the path to the generated STL file
@@ -492,7 +492,7 @@ iface = gr.Interface(
         gr.Slider(minimum=0.1, maximum=1.0, value=0.3, label="Thickness"),
         gr.Slider(minimum=0, maximum=1.0, value=0.05, label="Alpha"),
         gr.Slider(minimum=0.01, maximum=0.1, value=0.01, label="BackSheet Thickness"),
-        gr.Slider(minimum=0, maximum=1.0, value=0.0, label="lift"),
+        gr.Slider(minimum=0, maximum=0.1, value=0.0, label="lift"),
     ],
     outputs=gr.File(label="Download STL File"), # Use gr.File() for file downloads
     title="Image to 2.5D Relief Model Generator",