Disclaimer: Ray tracing shaders are demanding. Use of the "full add-on support" version of ReShade is intended for single-player games only.
Video game graphics evolve at a breakneck pace.Real-time ray tracing is now the industry standard for realistic lighting.However, many classic games lack native ray tracing support.Even newer titles sometimes omit this demanding graphical feature.Marty McFly’s RTGI (Ray Traced Global Illumination) shader fixes this issue.This ReShade shader injects screen-space ray tracing into almost any 3D game.This article explores RTGI version 0.33, its features, and its performance. What is ReShade RTGI?
RTGI is a post-processing shader for the ReShade tool that injects advanced lighting effects—global illumination (the indirect bouncing of light), ambient occlusion, and realistic shadows—into almost any game. It does this by analyzing the game's depth information on the fly. The result is a dramatic boost in visual depth, contrast, and realism, making scenes pop with accurate light interactions. reshade ray tracing shader rtgi 033 free
For a long time, the RTGI shader was locked behind a Patreon subscription as a "beta" tool. The shift toward versions like 0.33 becoming more widely accessible (or "free" via specific archival releases) democratized high-end visuals. It enabled owners of older GTX-series cards or mid-range hardware to experience a facsimile of the "next-gen" look without needing a top-tier RTX 40-series GPU.
(Ray Traced Global Illumination) shader completely changes how older PC games look. It adds modern screen-space ray tracing effects to almost any game using the ReShade injector. While the latest versions are locked behind a Patreon subscription, version RTGI 0.33 remains a highly sought-after release among graphics enthusiasts looking for a free alternative. Disclaimer: Ray tracing shaders are demanding
The shader offers fine-grained controls for both diffuse and specular GI, allowing you to shape the lighting to meet your demands. Quality presets put you in control of the performance/quality ratio, offering flexibility for both high-end and more modest gaming rigs.
The ReShade ray tracing shader RTGI 0.33 is incredibly versatile. It works on a wide range of hardware, from high-end RTX cards to older GPUs like the GTX 1050 or Radeon HD 6770M. Here is a list of games where users have successfully run RTGI: What is ReShade RTGI
Match this to your specific game. If you see weird dark halos around your character, adjusting the Z-thickness will clean up the artifacts without costing extra frames. Filter Quality