Classification: High-Fidelity Graphics Injection / ReShade Add-on Developer: Pascal Gilcher (Marty McFly) Status: Legacy / Superseded (Current public versions are significantly higher)
RTGI (Real-Time Global Illumination) is an open-source real-time lighting system used primarily in graphics engines and renderers to approximate global illumination effects at interactive frame rates. Version 0.17.0.2 is a patch/minor release focused on stability, small feature additions, and fixes.
In the ever-evolving landscape of PC gaming modding, few tools have commanded as much respect and attention as Pascal Gilcher’s Ray-Traced Global Illumination (RTGI) shader. Part of the renowned ReShade suite, RTGI has democratized high-end lighting effects, bringing a taste of next-gen illumination to games that were never designed for it. rtgi 0.17.0.2
With the release of RTGI 0.17.0.2, the modding community has been buzzing. This isn't just a minor patch; it represents a significant leap in performance optimization, artifact reduction, and ease of use. Whether you are a seasoned modder or a curious gamer looking to breathe new life into your favorite classic titles, this article breaks down everything you need to know about version 0.17.0.2.
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 bounced lighting. Subject: RTGI (Ray Traced Global Illumination) - Version 0
In standard rasterized games (e.g., Skyrim, GTA V, Fallout 4, or even Elden Ring), shadows are often "hard" and ambient light is faked using ambient occlusion (AO) and pre-baked light maps. RTGI scans the depth buffer and color buffer in real-time, traces rays from the camera’s perspective, and intelligently bounces light off surfaces. The result? Diffuse illumination, color bleeding, and realistic soft shadows that adapt as the camera moves.
Version 0.16.x was considered the gold standard for years. However, RTGI 0.17.0.2 changes the game. RTGI 0
Temporal Supersampling: Yes (reduces firefly noise)One of the biggest complaints in previous RTGI versions (pre-0.17) was the "shimmering" or "boiling" effect on fine details, such as grass, chain-link fences, or distant foliage. Version 0.17.0.2 introduces a refined Temporal Anti-Aliasing (TAA) integration.
The algorithm now better differentiates between "new light information" and "temporal noise." Users will notice that static scenes look plastic-smooth, while moving objects retain a natural grain without the dancing pixels of older iterations.