Reshade Ray Tracing Shader Rtgi 033 2021 -
The ReShade Ray Tracing Shader RTGI 0.3.3 is a cutting-edge implementation of RTGI, built on top of the ReShade framework. This shader uses real-time ray tracing to generate accurate, dynamic lighting in games and other graphics applications. Released in 2021, RTGI 0.3.3 represents a significant milestone in the development of real-time ray tracing technology.
Running it at 4K was extremely demanding. Many users in 2021 paired it with resolution scaling (running the game at 1080p/1440p and upscaling) to maintain 60 FPS.
The RTGI_033 team's achievement marked a significant milestone in the evolution of real-time graphics. Their work had not only pushed the boundaries of what was thought possible but had also democratized access to advanced graphics techniques. The shader became a benchmark for future developments, inspiring others to explore the vast possibilities of ray tracing and global illumination. reshade ray tracing shader rtgi 033 2021
To use RTGI, you must have the base ReShade tool installed first.
If the screen is blank, go to the Add-ons (or DX11/DX12) tab in ReShade and try checking different depth buffers until the image appears. ⚙️ Best Settings for v0.33 The ReShade Ray Tracing Shader RTGI 0
Under the hood, ReShade Ray Tracing Shader RTGI 0.3.3 relies on a combination of advanced technologies, including:
RTGI is a custom shader running via , an open-source post-processing injector. Unlike native ray tracing, RTGI doesn’t modify game engines or access depth/normal buffers directly. Instead, it analyzes the final 2D image, reconstructs a rough 3D scene using depth data, and then simulates light bounces – a technique called screen-space ray tracing or hi-z tracing . Running it at 4K was extremely demanding
[Game Engine] ──> [Depth Buffer Export] ──> [ReShade RTGI Shader] ──> [Final On-Screen Image]
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Light bounces off surfaces, bringing color with it (color bleeding).
The late-2021 release of RTGI 0.33 fundamentally changed how PC gamers approached older titles. Classics like The Witcher 3 (prior to its official next-gen patch), Grand Theft Auto V , Skyrim , and Dark Souls received massive visual revamps. It breathed new life into older games by anchoring floating characters to the ground with realistic contact shadows and filling flat, dull rooms with rich, ambient bounce light.