Differential Scaffold Rasterization

Modified Gaussian Rasterization as used in Scaffold-GS.

Implements depth and normal rasterization as described in RaDe-GS.

Citations

@misc{zhang2024radegsrasterizingdepthgaussian,
      title={RaDe-GS: Rasterizing Depth in Gaussian Splatting}, 
      author={Baowen Zhang and Chuan Fang and Rakesh Shrestha and Yixun Liang and Xiaoxiao Long and Ping Tan},
      year={2024},
      eprint={2406.01467},
      archivePrefix={arXiv},
      primaryClass={cs.GR},
      url={https://arxiv.org/abs/2406.01467}, 
}

@inproceedings{scaffoldgs,
  title={Scaffold-gs: Structured 3d gaussians for view-adaptive rendering},
  author={Lu, Tao and Yu, Mulin and Xu, Linning and Xiangli, Yuanbo and Wang, Limin and Lin, Dahua and Dai, Bo},
  booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
  pages={20654--20664},
  year={2024}
}

@Article{kerbl3Dgaussians,
      author       = {Kerbl, Bernhard and Kopanas, Georgios and Leimk{\"u}hler, Thomas and Drettakis, George},
      title        = {3D Gaussian Splatting for Real-Time Radiance Field Rendering},
      journal      = {ACM Transactions on Graphics},
      number       = {4},
      volume       = {42},
      month        = {July},
      year         = {2023},
      url          = {https://repo-sam.inria.fr/fungraph/3d-gaussian-splatting/}
}