If you are not running the Next-Gen Update (or you are running on Steam Deck), RTGI 0.33 is a miracle. Put "Bounce Mode" to 2 (Full Diffuse) to make Novigrad’s alleyways look photorealistic.
Cause: ReShade 6.0 hates the old syntax. Fix: Downgrade to ReShade 5.9.2. You can find the installer on GitHub under "Releases - Legacy."
RTGI 0.33 demonstrates that high-quality, multi-bounce screen-space GI with temporal accumulation and denoising can approach reference-like indirect lighting on mid-range hardware when carefully engineered. Remaining challenges—off-screen lighting, thin-geometry handling, and dynamic scenes—offer research opportunities combining reservoir sampling, neural denoisers, and hybrid hardware/software ray tracing.
References
The ReShade Ray Traced Global Illumination (RTGI) shader version 0.33 represents a landmark update in post-processing technology, primarily known for introducing motion vectors to improve temporal stability and lighting accuracy. Developed by Pascal Gilcher (widely known as Marty McFly), this "exclusive" shader allows gamers to experience ray-traced effects in virtually any game—regardless of whether the title natively supports ray tracing or if the user has an NVIDIA RTX-capable graphics card. What is RTGI 0.33?
RTGI is a state-of-the-art post-processing effect that simulates how light physically interacts with objects in a 3D environment. Unlike native ray tracing, which utilizes triangle-based geometry data, RTGI operates as a screen-space effect using the game’s depth buffer. Version 0.33 was a significant milestone because:
Motion Vector Integration: This update introduced motion vectors, which help the shader track pixels as they move across frames, drastically reducing "shimmering" and flickering.
Hardware Independence: It remains fully compatible with older GPUs, utilizing raw processing power rather than dedicated RT cores. reshade ray tracing shader rtgi 033 exclusive
Improved Global Illumination: It models both diffuse and specular light bounces, bridging the gap between standard game lighting and photorealistic real-time solutions. Exclusive Features & Technical Innovations
The "exclusive" nature of the RTGI shader often refers to its availability as a "Pro" tier effect through Marty's Mods Patreon.
Custom Sampling Algorithms: Rather than relying on standard ReSTIR GI algorithms which can suffer from chroma noise, version 0.33 and subsequent updates use proprietary sampling designed to outperform standard solutions in quality.
HiZ Min-Max Tracing: Recent iterations have improved reflections by using pixel-perfect path tracing via HiZ technology.
Temporal Stability: By focusing on stability, it minimizes the lag and "ghosting" effects often seen in earlier screen-space ray tracing versions. How to Install and Configure RTGI 0.33
Because this shader is a third-party modification, it requires a specific installation process through the ReShade setup tool. ReShade 5.3 and RTGI 0.33 Update | August 2022
However, note: As of my current knowledge cutoff in October 2023, the latest public version of RTGI was around 0.32 or earlier 0.33 beta. If "0.33 exclusive" refers to a newer Patreon-exclusive or beta release after that date, I recommend checking Pascal Gilcher's Patreon or GitHub for the most up-to-date changelog. If you are not running the Next-Gen Update
Below is a feature overview / highlight sheet based on what a typical "exclusive 0.33" update would likely include, following the pattern of previous RTGI updates (0.30 → 0.31 → 0.32):
Would you like troubleshooting steps for a specific game or help finding a modern, free alternative to RTGI 0.33?
The search for "reshade ray tracing shader rtgi 033 exclusive" refers to a specific version (0.33) of the Ray Traced Global Illumination (RTGI) shader developed by Pascal Gilcher (also known as Marty McFly Key Details of RTGI 0.33 Shader Purpose : RTGI is a post-processing shader for
that adds path-traced global illumination and ambient occlusion to games that do not natively support it. It uses the game's depth buffer to simulate how light bounces off surfaces. Version Context
: Version 0.33 is an older release from around 2021-2022, primarily discussed in enthusiast communities like Reddit (r/CemuPiracy) and specialized modding forums. "Exclusive" Status
: The RTGI shader is historically "exclusive" in that it is primarily available through Pascal Gilcher's Patreon
. While early beta versions were sometimes shared, the most stable and advanced versions (now under the iMMERSE Pro branding) are distributed to supporters. Current Availability Cause: ReShade 6
The shader has evolved significantly since version 0.33. Newer iterations are now part of the iMMERSE Pro
suite, which includes advanced features like HiZ Min-Max Tracing and better denoisers. Official Downloads : You can find current versions and documentation on the Marty's Mods website or via his for free variants like Compatibility
: RTGI works on any GPU (AMD or NVIDIA) as it is a screen-space effect, but it is highly demanding and requires access to a game's depth buffer to function correctly. installation steps for the current version of ReShade or specific settings for RTGI Pascal Gilcher - Patreon
Important Note: This guide is for educational and archival purposes. Version 0.33 is obsolete (replaced by newer RTGI and then by Marty’s Screen Space Ray Tracing). It is also closed-source/Patreon-era software.
Pascal Gilcher has moved on to RTGI "Mortens" (version 2.0), which uses Machine Learning (ML) denoising. It is incredible, but it requires an NVIDIA RTX 2060 or better to run at 1440p.
That means RTGI 0.33 Exclusive remains the ultimate democratization tool. It allows:
The "exclusive" nature of 0.33—paywalled for a year and then abandoned—has ironically preserved it. Because it is no longer updated, it is stable. It is a time capsule of the perfect balance between visual fidelity and computational cost.
If you see colored static noise (yellow/blue dots) moving across your screen, it is working. That is the ray marching visualization before temporal accumulation cleans it up.
ENB (Enhanced Natural Beauty) is heavy. RTGI 0.33 + Community Shaders is the new meta. Disable vanilla ambient occlusion and let RTGI bounce firelight from rivers.