Hello! Sorry for the late reply.
A CWBVH is a compressed bounding volume hierarchy. I use it because its the fastest BVH I know of without doing hardware RT(though I am always looking for faster)
It is by far the fastest in incoherent(non primary) rays
https://research.nvidia.com/sites/default/files/publications/ylitie2017hpg-paper.pdf
Hello! Sorry for the late reply. A CWBVH is a compressed bounding volume hierarchy. I use it because its the fastest BVH I know of without doing hardware RT(though I am always looking for faster) It is by far the fastest in incoherent(non primary) rays https://research.nvidia.com/sites/default/files/publications/ylitie2017hpg-paper.pdf