Installing RTGI for the first time can be a multi-step process, but it's straightforward.
The internet is flooded with websites claiming to offer free downloads of premium ReShade shaders. Because shaders are code-based files ( .fx ), malicious actors can easily inject malware, coin-miners, or spyware into the download packages. Downloading zipped files from untrusted third-party forums or shady YouTube description links puts your entire system at risk of infection. 2. Outdated and Broken Files
: Shaders like DH-RTGI offer similar screen-space ray tracing for free.
Unlike traditional rasterization techniques that use "baked" (pre-calculated) lighting, RTGI simulates how light bounces off surfaces, creating: reshade ray tracing shader rtgi 033 free
The shader, specifically version 0.33 , is a high-end post-processing effect created by Pascal Gilcher (also known as Marty McFly) that simulates realistic lighting and reflections in real-time. While the core ReShade software is free and open-source, official versions of the RTGI shader, including 0.33, are generally not free and are primarily available to Pascal Gilcher's Patreon supporters. Access and Availability ReShade 5.3 and RTGI 0.33 Update | August 2022
Copy the RTGI.fx file and its associated files ( textures folder) into the reshade-shaders/Shaders folder within your game's directory.
: Supporting creators via platforms like Patreon ensures the continued development of these tools, which often bridge the gap between "indie" visuals and "AAA" graphics. Conclusion Installing RTGI for the first time can be
The shader by developer Pascal Gilcher (alias Marty McFly ) is widely considered the "gold standard" for software-based ray tracing in post-processing. Version 0.33 represents a specific, highly stable public release that dramatically enhances lighting in older games or titles lacking native ray tracing support. Unlike the paid Patreon builds, v0.33 is available for free and brings realistic light bouncing and soft shadows to a vast library of games with minimal performance overhead compared to hardware-accelerated ray tracing.
Not every game benefits equally. Here are the titles where the genuinely transforms the visuals.
Launch your game and press the key to open the ReShade overlay. Go to the Add-ons tab at the top of the menu. Check the box for Generic Depth . you can see through walls)
If your depth buffer looks inverted or broken (e.g., you can see through walls), go to the tab, look at the global processors at the bottom, and toggle RESHADE_DEPTH_IS_REVERSED between 0 and 1 .
It runs on standard graphics cards. It does not strictly require dedicated RT cores (like NVIDIA RTX or AMD RX 6000+ series), though stronger GPUs handle it much better. Understanding RTGI Availability and the "Free" Version