The RTGI (Ray-Traced Global Illumination) shader was developed by Pascal Gilcher (also known as Marty McFly). Unlike hardware-accelerated ray tracing found on NVIDIA RTX graphics cards, Gilcher's approach is a . This means it analyzes and enhances the lighting based only on the information currently displayed on your monitor, using the game's depth buffer to simulate global illumination. The effect is often described as a significant step up from standard SSAO (Screen Space Ambient Occlusion), adding realistic bounce lighting and soft shadows to 3D environments.
: Subscribe to the appropriate tier on the Marty's Mods Patreon.
In the world of PC gaming, "Ray Tracing" has become the golden standard for realistic lighting. However, not everyone owns an NVIDIA RTX or AMD Radeon RX 7000 series GPU. For years, the modding community has relied on a brilliant piece of software: . And within that ecosystem, one shader stands above the rest— Pascal Gilcher’s RTGI (Ray Traced Global Illumination) . reshade ray tracing shader rtgi 033 free
RTGI 0.33 is a free real-time global illumination shader for ReShade that uses ray-tracing-like screen-space techniques to approximate indirect lighting, ambient occlusion, and soft shadows. It aims to improve scene realism in games and real-time applications without requiring hardware ray tracing.
Did we help you install RTGI 0.33? Share your before/after screenshots in the comments below. For more ReShade guides, check out our Optimized Shader Database. The effect is often described as a significant
Cracked shaders online often contain viruses or malware.
Run the ReShade installer. Select your game’s executable file (e.g., witcher3.exe ). Select DirectX 10/11/12 (most modern games). Let it install the standard effects. However, not everyone owns an NVIDIA RTX or
: Refined code for better frame rates compared to earlier versions.
Developed by Pascal Gilcher, widely known in the modding community as Marty McFly , this post-processing filter intercepts a game's depth engine data to simulate how physical light bounces across 3D surfaces. While newer builds of this industry-shifting mod are traditionally hosted behind premium tiers on Marty McFly's Patreon , the RTGI 0.33 version has become a landmark release widely discussed across modding communities as an accessible sweet spot for visual fidelity and classic game remastering. What Makes RTGI 0.33 a Milestone?
Optimized Preset (high-level settings)
The RTGI shader is officially a paid mod hosted on Pascal Gilcher’s Patreon page.Developing screen-space ray tracing algorithms requires massive amounts of time and updates. Official Access