Comment by gmueckl

When path tracing works, it is much, much, MUCH simpler and vastly saner algorithm than those stacks of 40+ complicated rasterization hacks in current rasterization based renderers that barely manage to capture crude approxinations of the first indirect light bounces. Rasterization as a rendering model for realistic lighting has outlived its usefulness. It overstayed because optimizing ray-triangle intersection tests for path tracing in hardware is a hard problem that took some 15 o 20 years of research to even get to the first generation RTX hardware.