Note: RTGI 0.17.0.2 still relies on , not RT cores. Therefore, Nvidia GTX cards and AMD RX 5000 series run it comparably to low-end RTX cards.
Before diving into version 0.17.0.2, it is essential to understand the foundation. RTGI (created by developer Pascal "Martino" Gilcher) is a shader suite for Reshade, an open-source post-processing injector. Unlike traditional shaders that simply adjust color, brightness, or sharpness, RTGI simulates . rtgi 0.17.0.2