Rtgi 0.36.1 — Reshade

If a red laser hits a white wall in a dark room, the wall will emit a soft red glow. Without RTGI, the wall remains unlit or is lit by a generic ambient light.

Launch your game. Press the key to open the ReShade overlay. Navigate to the "Add-ons" or "Effect" tab and search for the effect titled RTGlobalIllumination.fx . Check the box to enable it.

If you’ve ever wanted ray-traced global illumination in older games like Skyrim , GTA V , Fallout 4 , or Mass Effect , ReShade RTGI 0.36.1 is the most accessible entry point. This version represents the last free, open-source release of the shader before it evolved into the paid "RTGI (Full)" available on Patreon. Reshade Rtgi 0.36.1

developed by Pascal Gilcher (Marty McFly) that simulates hardware-level ray tracing on a screen-space level. Below is a structured technical overview ("paper") for version 0.36.1 and its general implementation principles. 1. Executive Summary RTGI 0.36.1 is an advanced shader for the platform that provides physically-based lighting

: High numbers eliminate noise but crush frame rates. Set Ray Amount to 3 and Step Amount to 8 for a balanced gameplay profile. 3. Z-Thickness If a red laser hits a white wall

The shader optimizes how rays are distributed across the screen. It prioritizes detailed ray allocation where shadows change sharply, while using fewer rays on flat, uniform surfaces. This balancing act recovers valuable frame rates. Infinite Bounces Simulation

Because it operates as a post-processing shader through ReShade, it uses the game’s to calculate light vectors. This means you can add realistic color bleeding, soft ambient occlusion, and dynamic micro-shadows to titles released well before the ray-tracing era. Key Features in Version 0.36.1 Press the key to open the ReShade overlay

ReShade is a generic post-processing injector for games and video software. It allows users to overlay advanced color correction, sharpening, and ambient occlusion filters onto a game.

Before installing RTGI 0.36.1, ensure your system and game meet the following technical requirements: System Requirements

RTGI stands for . Unlike traditional static game lighting, RTGI simulates how light bounces off surfaces in real time.

Simulates realistic light distribution and multi-bounce lighting.