How to build a BVH - tutorial + code

[jbikker]

I am working on a series of blog posts on constructing a BVH, in straight 'sane' C++, with source code on Github:
https://jacco.ompf2.com/2022/04/13/how-to-build-a-bvh-part-1-basics/
and
https://github.com/jbikker/bvh_article
Three articles have been released so far:
* Basics
* Faster rays
* Binned building
Two more articles are planned, one on BVH refitting, one on TLAS/BLAS for animated scenes.
Comments are welcome, e.g. via Twitter, @j_bikker.

 

[jbikker]

There are now 9 articles, all with full source code.
4: animation; refitting and rebuilding a BVH.
5: TLAS & BLAS; this is how RTX/DXR handles BVHs for games.
6: TLAS & BLAS part 2 (5 was getting too long).
7: Using the BVH for nice rendering.
8: Whitted-style ray tracing, with an HDR skydome and reflections.

The last article, number 9, discusses how to take the BVH to the GPU using OpenCL.

Comments still welcome, both on the blog and on Twitter, @j_bikker.