The shader now includes an automatic quality scaler. If your GPU drops below 45 FPS, RTGI 0.17.0.2 dynamically reduces the number of rays per pixel (RPP) from 6 to 3, then scales up when headroom returns. This feature was experimental in 0.17.0.0 but is now stable and toggleable via RTGI_Performance_Mode.cfg.
This gives up to ~30% performance gain in rough scenes with minimal quality loss.
Ray tracing is notoriously expensive. However, RTGI 0.17.0.2 includes a new Adaptive Ray Count. Instead of casting the same number of rays across the entire screen, the shader intelligently reduces ray counts in darker, shadowed areas where high precision is unnecessary, and focuses compute power on brightly lit surfaces.
Early benchmarks suggest a 15-20% performance gain over version 0.16 on the same hardware (tested on an RTX 3060 and RX 6700 XT).
