Reshade Ray Tracing Shader Rtgi 0.33 Jun 2026

I can provide a custom tweaking guide tailored directly to your system. Share public link

ReShade hooks into the game’s graphics API (DirectX 9/11/12, Vulkan, OpenGL) to read the depth map (Z-buffer). This tells the shader exactly how far every pixel is from the camera.

Photorealistic graphics are no longer exclusive to native DirectX 12 titles and modern hardware. Pascal Gilcher (widely known as Marty McFly) revolutionized PC gaming with his Screen-Space Ray Traced Global Illumination (RTGI) shader for ReShade.

Set to 3 or 4 for gameplay. Reserve 7 or 8 strictly for taking high-fidelity screenshots. Reshade Ray Tracing shader RTGI 0.33

Better optimization for screen-space calculations.

Keep "Ray Amount" between 3 and 5 for a balance of quality and speed. Step Size:

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RTGI is a post-processing shader that simulates Global Illumination (GI) in real-time. Unlike native ray tracing implemented in a game engine (which traces rays during the geometry rendering phase), RTGI works with the final image (color, depth, and normals) generated by the game. It calculates how light bounces off surfaces and into shadowed areas, effectively eliminating the "flat" look of games that rely solely on static lighting or simple dynamic shadows.

: RTGI is very demanding. If your FPS drops too low, reduce the Resolution Scale within the RTGI settings to 0.5 or 0.67 .

Because RTGI 0.33 is a "beta" shader, it requires manual installation. Photorealistic graphics are no longer exclusive to native

It requires a game with a stable depth buffer (usually disabled in online games to prevent cheating).

: Simulates multiple light bounces, allowing color from a bright floor to reflect onto a wall, and then onto the ceiling.

RTGI tracks rays based on what is currently visible on your monitor. Objects hidden behind geometry or off-screen do not cast rays. Version 0.33 introduces advanced heuristics to minimize these screen-edge limitations, fading out global illumination smoothly at screen boundaries to maintain visual consistency. Path Tracing and Bounced Light