RTGI (Ray Traced Global Illumination) shader, developed by Pascal Gilcher (known as "Marty McFly"), is a post-processing tool for
Months later, a lightweight library ported RTGI into a handful of engines. The name—033—stuck like a nickname. In talk threads and tiny conference booths, people who had once argued about sampling patterns now shared stories: shots that moved millions to tears, virtual sunsets that taught someone to miss their home less. Smallforge rarely posted beyond the changelogs, but once—just a brief line—appeared in the thread: "I like how it makes old things feel used."
💡 Enable Performance Mode at the bottom right of the ReShade menu after you finish tweaking settings to save a few frames. ReShade 5.3 and RTGI 0.33 Update | August 2022
: This feature uses the screen's existing image to inform the ray tracing calculations, helping the added lighting feel more cohesive with the game's native art style. Hardware Independence reshade ray tracing shader rtgi 033 2021
Even years later, the is a must-have tool for virtual photographers and gamers looking to remaster their favorite classics. It bridges the gap between old-school rendering and the next generation of graphics. If you'd like to get this set up, let me know: What specific game are you trying to mod? What GPU are you currently running? Are you seeing any flickering or black screens ?
At first there was nothing, then there was light. What had been flat and matte became layered; sunbeams threaded through dust motes, bounced off wet cobblestones, pooled in the hollow of a statue’s hand. The shader didn't recreate geometry so much as eavesdrop on the scene's light and invent depth from it. It stitched tentative rays through the pixels, following reflections like a haphazard choreographer tracing movements on a dim stage. The effect wasn't photorealism—that would have required budgets and farms of GPUs—but it was intimacy: the scene looked as if someone had turned on a room-light inside the image.
By 2021, the RTGI shader had moved past its initial experimental phase. The 0.3.x series, particularly 0.3.3, brought substantial improvements: RTGI (Ray Traced Global Illumination) shader, developed by
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.
Performance is dictated by the equation: . More rays reduce "noise" (graininess), while more steps improve accuracy.
Use a secondary ReShade shader called UIDetect or UI Mask placed above RTGI in your load order to mask out the HUD. 2. Flickering or Disappearing Lighting It bridges the gap between old-school rendering and
RTGI stands for . Unlike standard game lighting, which often "fakes" how light bounces, RTGI calculates how light hits surfaces and reflects back into the environment. Realistic Shadows: Objects feel grounded in the world.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Below are suggested starting values for RTGI v0.33. Adjust them while watching a moderately complex scene (trees, walls, a character’s face).