: Get the latest version from the official site . For best results with ray tracing, use the version "with full add-on support".
A user searching for a "free" RTGI shader likely expects NVIDIA-quality path tracing. In reality, legitimate free versions (e.g., older open-source forks) suffer from 50% performance penalties and visual noise. The "cracked" versions found on free download sites rarely improve upon this. rtgi shader free download free
ShaderToy example: