Start your game. You should see a ReShade tutorial pop-up (press the Home key by default). Open the ReShade overlay. Go to the "Settings" tab. Ensure the "Effect Search Paths" points to your Shaders folder. Click "Reload" (or press the reload button).
Download the RTGI.fx (and any .fxh helper files) for version 0.33. Copy these files directly into the reshade-shaders/Shaders folder. reshade ray tracing shader rtgi 033 free
In this article, we will break down everything you need to know: what RTGI is, why version 0.33 remains a fan-favorite, how to install it for free, and which games see the most dramatic transformation. ReShade is an open-source post-processing injector. Think of it as a universal graphics filter that layers on top of almost any DirectX 9, 10, 11, or 12 game. By default, ReShade adds features like SMAA (anti-aliasing), color grading, and depth-of-field. But its true power lies in custom shaders. Start your game
The effect flickers or looks like "soup." Solution: Screen-space ray tracing requires a depth buffer. Go to the ReShade "Add-ons" tab and ensure "Copy depth buffer before clear" is checked. Also, disable anti-aliasing in-game (use ReShade's SMAA instead). Go to the "Settings" tab