In today’s talk, we’ll analyze this paper that introduces ReSTIR, a technique that has gained traction in Ray Tracing. It aims to improve sample distribution by adding multiple candidates to achieve a better-distributed sample, emphasizing the critical role of Multiple Importance Sampling and unbiased weight contributions to maintain accuracy.

Read original paper:

https://intro-to-restir.cwyman.org/presentations/2023ReSTIR_Course_Notes.pdf