While the free version (0.33) is widely sought after, it's important to note that Pascal Gilcher's official RTGI shader is currently a paid product, accessible via a $5 subscription on his Patreon. The active development and support for this shader are quite impressive; recent updates (v0.51 and beyond) have introduced significant improvements like new sampling algorithms that outperform industry giants like ReSTIR GI, and pixel-perfect path tracing for reflections.
While 0.33 is a beta, some community forums may archive older beta iterations. Note: Using official, updated versions is safer for performance and stability.
: A free, open-source screen-space ray tracing shader available on GitHub.
: Because it operates as a post-process effect, it works on almost any GPU, including older non-RTX cards. 2. Is there a "Free" Version? ReShade 5.3 and RTGI 0.33 Update | August 2022 reshade ray tracing shader rtgi 033 free
ReShade is a post-processing injector that modifies game visuals by injecting custom shaders.The RTGI shader uses the game’s depth buffer to calculate screen-space ray tracing.Version 0.33 introduces major optimization features, cleaner denoising filters, and faster performance. Key Features of RTGI 0.33
| Pros | Cons | | :--- | :--- | | Can make 10-year-old games look modern and cinematic. | Screen-Space Artifacts: Light bleeding can occur on edges of the screen or when the camera moves quickly (though v0.33 handles this well). | | Free Access: v0.33 provides high-end features without the Patreon paywall. | Performance Hit: Can reduce FPS by 20-40% depending on settings and resolution. | | Wide Compatibility: Works on almost any game that supports ReShade (DX9-DX12). | Complex Setup: Requires understanding depth buffer settings to avoid UI artifacts or lighting glitches. | | Customizable: Extensive variables allow users to tweak light intensity, bounce strength, and sky color. | Not "True" RT: It does not reflect objects outside the camera view or handle transparent objects perfectly. |
Download the RTGI.fx (and any .fxh helper files) for version 0.33. Copy these files directly into the reshade-shaders/Shaders folder. While the free version (0
Unzip the RTGI archive. Inside, you will typically see a Shaders and Textures folder. Navigate to the root folder where your game's .exe file is located. Inside that folder, find the reshade-shaders directory. Copy the contents of the RTGI archive's Shaders and Textures folders into the corresponding folders within reshade-shaders , merging and overwriting if prompted.
Contents (files included)
If you tell me you want to use this with, I can give you advice on which settings to prioritize for performance. Note: Using official, updated versions is safer for
The Ultimate Guide to ReShade Ray Tracing: How to Get RTGI 0.33
This phase was critical because while Pascal Gilcher continues development. For version 0.33 and onward, the shader was not freely redistributable; to obtain the shader files, one needed to subscribe to Gilcher's "Raytracers" tier on Patreon.
It works on any modern GPU (NVIDIA or AMD) because it does not require dedicated RT cores. ⚡ Performance and Technical Reality
: Paying for the shader ensures continuous updates for newer games. Public and Free Versions