It had been six months since Pascal Gilcher, also known as Marty McFly, had released an update for his popular RTGI ReShade shader. However, a new version just became available to his Patreon subscribers, and it’s a big one. The modder tried to implement the ReSTIR GI algorithm in his shader, but encountered several limitations, like chroma noise (because reservoir sampling can only hold light from a single direction), sample correlation that breaks denoiser variance estimation, and white noise output. Eventually, Gilcher decided to design his own sampling algorithm, which he reckons vastly outperforms ReSTIR GI in terms of quality. The RTGI […]
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