Lecture 13: Global Illumination & Path Tracing (27)
zeddybot
I'm curious about when its better to sample the BRDF vs sampling the lights. I imagine if your BRDF has a very sharp peak, it is better to sample the BRDF. But if you have only one very bright light source, it is better to sample the light source.
I'm curious about when its better to sample the BRDF vs sampling the lights. I imagine if your BRDF has a very sharp peak, it is better to sample the BRDF. But if you have only one very bright light source, it is better to sample the light source.