MV-Adapter-ig2mv must be a real number

[wes-kay]

When trying to run the https://github.com/MrForExample/ComfyUI-3D-Pack/blob/main/example_workflows/MV-Adapter/MV-Adapter-ig2mv.json

got prompt
!!! Exception during processing !!! must be real number, not NoneType
Traceback (most recent call last):
  File "C:\Users\Documents\ComfyUI\execution.py", line 496, in execute
    output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs)
                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Documents\ComfyUI\execution.py", line 315, in get_output_data
    return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Documents\ComfyUI\execution.py", line 289, in _async_map_node_over_list
    await process_inputs(input_dict, i)
  File "C:\Users\Documents\ComfyUI\execution.py", line 277, in process_inputs
    result = f(**inputs)
             ^^^^^^^^^^^
  File "C:\Users\Documents\ComfyUI\custom_nodes\ComfyUI-3D-Pack\nodes.py", line 4887, in run
    images, pos_images, normal_images, processed_ref_image = mvadapter_run_pipeline(
                                                             ^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Documents\ComfyUI\custom_nodes\ComfyUI-3D-Pack\Gen_3D_Modules\MV_Adapter\mvadapter_node_utils.py", line 187, in run_pipeline
    mesh = load_mesh(mesh_path, rescale=True, device=device)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Documents\ComfyUI\custom_nodes\ComfyUI-3D-Pack\Gen_3D_Modules\MV_Adapter\mvadapter\utils\mesh_utils\mesh.py", line 292, in load_mesh
    v_tex = torch.tensor(mesh.visual.uv, dtype=torch.float32)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Documents\ComfyUI\venv\Lib\site-packages\torch\utils\_device.py", line 104, in __torch_function__
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
TypeError: must be real number, not NoneType

[wes-kay]

Also getting a assert default_uv_size is not None AssertionError on a default exported cube from blender.

[wes-kay]

I manually fixed it by applying a base color to the mesh, but it shouldn't be failing if there's no base color:

    if hasattr(mesh, "visual") and hasattr(mesh.visual, "uv"):
        v_tex = torch.tensor(mesh.visual.uv, dtype=torch.float32)
        if flip_uv:
            v_tex[:, 1] = 1.0 - v_tex[:, 1]
        t_tex_idx = t_pos_idx.clone()
        if (
            default_uv_size is not None
            or getattr(mesh.visual.material, "baseColorTexture", None) is None
        ):
            assert default_uv_size is not None
            texture = torch.zeros(
                (default_uv_size, default_uv_size, 3), dtype=torch.float32
            )
        else:
            texture = torch.tensor(
                np.array(mesh.visual.material.baseColorTexture) / 255.0,
                dtype=torch.float32,
            )[..., :3]

[DenisKochetov]

@wes-kay thank you! totally agree, will fix