If you have an old game in your Steam library with dated lighting, download ReShade 4.9, find an archive of , and witness the magic of software-based path tracing. The frame rate may drop, but the immersion will skyrocket. Have you used RTGI 0.33 in your favorite retro game? Share your results and custom settings in the comments below. And stay tuned for our upcoming guide on RTGI 1.5 vs. 0.33 performance shootout.
Published: 2021 (Retrospective Analysis) reshade ray tracing shader rtgi 033 2021
Test results (1080p, High Quality preset): If you have an old game in your
| GPU | Game | Native FPS | With RTGI 0.33 | Penalty | | :--- | :--- | :--- | :--- | :--- | | RTX 2060 | Mass Effect Legendary | 120 | 78 | -35% | | GTX 1080 Ti | Witcher 3 | 90 | 72 | -20% | | RX 5700 XT | Resident Evil 2 | 110 | 65 | -41% | | GTX 1660 Ti | Skyrim SE (ENB) | 60 | 42 | -30% | Share your results and custom settings in the comments below
(Ray Traced Global Illumination) is a specific shader developed by Marty McFly. Unlike simple color grading or ambient occlusion (AO) shaders, RTGI simulates how light bounces off surfaces to create realistic indirect lighting and shadows.
In the world of PC gaming graphics modding, few releases have caused as significant a ripple as the , which surfaced in early 2021. At a time when native ray tracing was still a luxury reserved for AAA titles like Cyberpunk 2077 and Control , modder Pascal "Marty McFly" Gilcher delivered a software-based solution that democratized path-traced global illumination.