[3D CV 연구] 3DGS How can I get the points’ indices which contribute to the pixels?

CUDA rasterization을 수정하여 특정 pixels에 기여하는 points를 알아내기 위해서는 last_contributor 변수에 기록된 값을 추적하면 됩니다.

https://github.com/graphdeco-inria/gaussian-splatting/issues/159

https://github.com/graphdeco-inria/diff-gaussian-rasterization/blob/59f5f77e3ddbac3ed9db93ec2cfe99ed6c5d121d/cuda_rasterizer/forward.cu#L361