Rest of the models are diffusers models, so they are wrapped and autodownloaded for now. Very new version of ComyUI is also required for the Preview3D -node.

Installation

Dependencies, in your python env:

pip install -r requirements.txt

or with portable:

python_embeded\python.exe -m pip install -r ComfyUI\custom_nodes\ComfyUI-Hunyuan3DWrapper\requirements.txt

For the texturegen part compilation is needed, I have included my compilations as a wheel for the rasterizer, and compiled .pyd for the mesh_processor (already in place), these are compiled for:

Windows 11 python 3.12 cu126 (works with torch build on 124)

You would do pip install wheels\custom_rasterizer-0.1-cp312-cp312-win_amd64.whl

or with portable (in ComfyUI_windows_portable -folder): python_embeded\python.exe -m pip install ComfyUI\custom_nodes\ComfyUI-Hunyuan3DWrapper\wheels\custom_rasterizer-0.1-cp312-cp312-win_amd64.whl

Windows 11 python 3.12 torch 2.6.0 + cu126 Current latest portable was updated to use pytorch 2.6.0, for this you should use new wheel: python_embeded\python.exe -m pip install ComfyUI\custom_nodes\ComfyUI-Hunyuan3DWrapper\wheels\custom_rasterizer-0.1.0+torch260.cuda126-cp312-cp312-win_amd64.whl

This was tested to work on latest ComfyUI portable install

If this doesn't work, you need to compile yourself:

Rasterizer, to build and install:

cd hy3dgen/texgen/custom_rasterizer
python_embeded\python.exe setup.py install
python_embeded\python.exe -m pip install .

Or build with python setup.py bdist_wheel which creates the .whl file to the dist -subfolder, which you then would pip install to your python environment. End result needs to be custom_rasterizer_kernel*.pyd file and custom_rasterizer folder in your python environments site-packages folder.

For the mesh_processor extension the build command would be this:

cd hy3dgen/texgen/differentiable_renderer
python_embeded\python.exe setup.py build_ext --inplace

This file is supposed to be in that very folder. It is only used for the vertex inpainting, if this file doesn't exist the fallback is run on cpu and is much slower. The vertex inpainting is on it's own node and in the worst case can just be bypassed, downside would be worse filling of the textures.

Again, with portable you should use the embedded python to run the commands.