Duplicated from microsoft/TRELLIS.2
https://huggingface.co/spaces/SIGMitch/3D/resolve/main/trellis2/modules/sparse/conv/__init__.py
hf download hf://spaces/SIGMitch/3D/trellis2/modules/sparse/conv/__init__.py
curl -L -o __init__.py https://huggingface.co/spaces/SIGMitch/3D/resolve/main/trellis2/modules/sparse/conv/__init__.py
