Reshade Ray Tracing Shader Rtgi 0.33 🆕 Official

The ReShade RTGI 0.33 update, released by Pascal Gilcher (Marty McFly) in August 2022, serves as a significant technical bridge between standard screen-space effects and full ray tracing. Technical Summary

, typically requiring a "Breakfast" tier membership ($5) or higher for beta access. Portal Reshade RTGI - The Working Class' RTX Portal

Hardware Independence: You don’t need an expensive RTX card to run this. Because it calculates lighting based on the game's depth buffer rather than dedicated hardware cores, it works on older GPUs too. Reshade Ray Tracing shader RTGI 0.33

Despite its brilliance, RTGI 0.33 is limited by what the camera can see. Since it relies on screen-space data, light sources or objects behind the player’s field of view do not contribute to the scene’s lighting. Furthermore, it carries a significant performance cost, often requiring high-end hardware to maintain a fluid frame rate.

Reshade Ray Tracing shader RTGI 0.33

Reshade’s RTGI 0.33 shader represents a significant step forward in the modding community’s ongoing effort to bring more realistic lighting to games that lack native ray tracing. RTGI (Ray-Traced Global Illumination) is designed to approximate complex light transport — indirect lighting, color bleeding, soft interreflections, and subtle occlusion — by using screen-space techniques and clever temporal accumulation rather than full hardware ray tracing. Version 0.33 refines that approach, balancing visual fidelity, performance, and compatibility for a wide range of titles and systems. The ReShade RTGI 0

Critical Bug Warning: If you see "boiling" white noise on faces or walls, reduce your "Ray Count" and increase "TAA Strength" . If you see inverted shadows (light inside dark corners), your depth buffer is reversed—toggle RESHADE_DEPTH_INPUT_IS_REVERSED in the preprocessor definitions.

1. Temporal Reprojection Tuning

Ghosting has always been the Achilles’ heel of screen-space GI. 0.33 introduces more aggressive but smarter history rejection. Fast camera movements now show far less trailing. The trade-off? A tiny bit more noise for 1-2 frames, then it cleans up. How it works: The shader traces rays only

: RTGI physically simulates light bounces, adding depth to scenes that otherwise look "flat". It adds subtle glow beneath light sources (like portals in ) and accurate shadows at material edges. Performance Cost

• How it works: The shader traces rays only from the visible pixels on your screen (Screen Space).
• The Limitation: Because it cannot see around corners or behind the camera, you will get light "leaks" or inaccurate reflections at the very edges of the monitor.
• The Magic: Despite this limitation, in 90% of gameplay, RTGI 0.33 convincingly creates bounce lighting, ambient occlusion, and indirect shadows that transform flat, matte textures into realistic surfaces.