PBRT: Physically Based Rendering Theory
As ray tracer are not bound by real-time constraints they allow for physically accurate algorithms to render stunning imagery. This section summarizes thoughts, analysis and exercises in such rendering systems. Due to it's accessibility most articles are based on the excellent book and corresponding ray tracer pbrt by Matt Pharr.
Fast ray-AABB Intersection test
EX 4.9: Here i implemented the fast-AABB test proposed by Eisemann 07 and analyse it’s impact on the performance of the pbrt-system.