http://box2d.org/files/GDC2019/ErinCatto_DynamicBVH_Full.pdf https://my.eng.utah.edu/~cs6965/slides/06.pdf
https://github.com/alecjacobson/computer-graphics-bounding-volume-hierarchy
http://fileadmin.cs.lth.se/cs/Education/EDAN30/lectures/S2-bvh.pdf
http://cdn.intechopen.com/pdfs/34468/InTech-Bounding_volume_hierarchies_for_collision_detection.pdf
http://www.sci.utah.edu/~wald/Publications/2007/ParallelBVHBuild/fastbuild.pdf
http://www-ljk.imag.fr/Publications/Basilic/com.lmc.publi.PUBLI_Inproceedings@117681e94b6_1860ffd/bounding_volume_hierarchies.pdf
https://www.codeproject.com/articles/832957/dynamic-bounding-volume-hiearchy-in-csharp
https://wiki.blender.org/wiki/Source/Render/Cycles/BVH
https://www.scratchapixel.com/lessons/advanced-rendering/introduction-acceleration-structure/bounding-volume-hierarchy-BVH-part1
