Set between 10.0 and 20.0 for natural light spread.

Inside the ReShade menu (Home key), ensure the "Edit Global Processor Definitions" has RESHADE_DEPTH_INPUT_IS_REVERSED set correctly for your game. Configure RTGI: Check the "RTGI" box in the ReShade list. Best Settings for High Quality Visuals

If you are looking to elevate your gaming visuals to a photorealistic level, the shader—developed by the legendary Pascal Gilcher (McFly)—is the gold standard. This version of the Screen Space Ray Traced Global Illumination (RTGI) shader brings sophisticated lighting techniques to games that don't natively support Ray Tracing. What is RTGI 01702?

Drop the RTGI.fx and RTGI.fxh into your game's reshade-shaders/Shaders folder.

Adjust to prevent light from "bleeding" through objects.

This adds a second layer of light reflection for maximum realism.

Your download should include a .fx shader file and a .fxh header file.