Though the original story behind RTGI_033 may fade into the digital ether, their impact on the graphics community endures. The ReShade RTGI shader remains a celebrated achievement, a testament to the power of dedication, collaboration, and innovation.
“It’s not real ray tracing, but on a 2016 GTX 1060 in 2021, it feels like magic.” – Reddit r/pcgaming user, March 2021
: Uses a specialized spatio-temporal filter to smooth out graininess caused by real-time ray calculations.
The latest public version of ReShade installed to your game directory. reshade ray tracing shader rtgi 033 2021
Ensure ReShade has access to your game’s depth buffer (disable MSAA in-game).
: Unlike native RTX ray tracing, RTGI does not require dedicated RT cores. It operates by tracing rays against the game's depth buffer
It heavily utilized pixel shaders, making it a primary test for RTX 3080/3090 cards during that period. Conclusion: The Legacy of RTGI 0.3.3 Though the original story behind RTGI_033 may fade
Their focus was on Ray Tracing Global Illumination (RTGI), a technique that allowed for more accurate and efficient rendering of light interactions in 3D environments. The team aimed to craft a custom shader, compatible with the popular ReShade framework, which would bring this cutting-edge technology to the masses.
RTGI is a shader module for , a generic post-processing injector for games and video software. Unlike standard reshade shaders that rely on depth buffers for basic ambient occlusion (SSAO), RTGI attempts to simulate the physical behavior of light. It calculates how light bounces off surfaces and colors the surrounding environment.
In 2021, v0.33 was the public iteration that solidified the "Marty McFly" (Pascal Gilcher) lighting formula. It brought features that mimicked the global illumination found in engines like Unreal Engine 5 or NVIDIA’s RTX implementations, but through a software layer that works on almost any GPU. The latest public version of ReShade installed to
If you have this file and are trying to configure it for a balance of visuals and performance, try these settings within the ReShade UI:
When you enable the , you gain access to a suite of adjustable parameters. Here is what mattered in 2021:
Do not use the standard ReShade installer for RTGI. You need the specific shader repository.