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PlenOctrees: PyTorch CUDA Extension

This repository contains a differentiable PlenOctree and renderer implementation as a PyTorch CUDA extension. It is used by our conversion and optimization code.

PlenOctrees for Real Time Rendering of Neural Radiance Fields<br> Alex Yu, Ruilong Li, Matthew Tancik, Hao Li, Ren Ng, Angjoo Kanazawa

https://alexyu.net/plenoctrees

@inproceedings{yu2021plenoctrees,
      title={{PlenOctrees} for Real-time Rendering of Neural Radiance Fields},
      author={Alex Yu and Ruilong Li and Matthew Tancik and Hao Li and Ren Ng and Angjoo Kanazawa},
      year={2021},
      booktitle={ICCV},
}

Please also refer to the following repositories

• NeRF-SH training and PlenOctree extraction: https://github.com/sxyu/plenoctree
• C++ volume renderer https://github.com/sxyu/volrend

Installation

pip install svox

Documentation

Please see https://svox.readthedocs.io

Troubleshooting

If you get SIGSEGV upon importing, check that your CUDA runtime and PyTorch CUDA versions match. That is, nvcc --version should match (Python) torch.version.cuda

Misc

SVOX stands for sparse voxel octree extension.