To use RTGI 0.3.3 in 2021, users generally subscribed to Marty McFly's Patreon to access the beta files. Basic Workflow
⚠️ ReShade automatically disables depth access when it detects network activity (to prevent anti‑cheat triggers). For single‑player games you can often ignore this; for online games, RTGI may simply not work.
RTGI (Ray Traced Global Illumination) is a screen-space path-tracing shader that simulates how light bounces off surfaces in real-time. Unlike standard "baked" lighting, version 0.33 allows for dynamic color bleeding and complex shadowing that adapts to moving objects and changing environments. reshade ray tracing shader rtgi 033 2021
: Unlike native NVIDIA RTX or AMD Ray Tracing solutions, RTGI works on almost any GPU (including older cards) because it is a screen-space effect
RTGI 0.3.3 accurately modeled both soft indirect light (diffuse) and reflections of light sources (specular). Why RTGI 0.3.3 Was a Game Changer in 2021 To use RTGI 0
💡 If you see light bleeding through your character or UI, move qUINT_rtgi.fx to the top of your shader list and ensure "Edit Global Preprocessor Definitions" has RESHADE_DEPTH_INPUT_IS_REVERSED set correctly (usually 1 or 0 depending on the game). To help you get the best look, let me know: What game are you modding? What is your GPU (for performance balance)? Are you seeing light leaking or black spots ?
ENB presets are heavy. RTGI 0.33 combined with a simple weather mod (Cathedral) produced physically based lighting that Bethesda never coded. Caves actually became dark, and torches illuminated realistically. RTGI (Ray Traced Global Illumination) is a screen-space
. This allowed the shader to track object movement between frames, significantly reducing "ghosting" or trailing artifacts common in previous versions when the camera or objects moved quickly. Ray Traced Global Illumination (RTGI)
Adds realistic shadow casting and material interaction that adapts to the in-game environment.
: Enhanced in the 2021 updates, this allowed the ray tracing to reach further into the scene, improving the accuracy of long-distance shadows and ambient occlusion. Image-Based Lighting (IBL)
Gilcher’s shaders are normally distributed through (starting at $5/month). That model lets him finance full‑time development while keeping the final versions free / open source later. Consequently, RTGI is not a free public download – you support the creator to get the latest binaries, and v0.33 was one of the most sought‑after beta releases of 2021.