This version focuses on performance optimization and stability, ensuring that high-end lighting doesn't always require a high-end frame rate tax. Refined Lighting Accuracy
RTGI (Ray-Traced Global Illumination) simulates how light bounces off surfaces to illuminate areas not directly hit by a light source. It transforms the look of classic and modern games by: Physical Grounding : Objects feel like they truly belong in the world. Color Bleeding
| Category | Score (out of 10) | Notes | |-------------------|-------------------|-------| | Visual Improvement| 7 | Cleaner temporal stability, but same physical limits. | | Performance | 8 | Small but real gains; better frame pacing. | | Stability | 9 | Crash fixes and AMD compatibility are huge. | | Ease of Setup | 6 | Still requires depth buffer fiddling in some games. | | Documentation | 7 | Changelog clear, but no new user guide. | | Value (free update)| 10 | If you own 0.17.x, it’s free. If you don’t, worth $5. |
RTGI stands for . In native modern game engines, ray tracing requires dedicated hardware blocks (like NVIDIA’s RT cores) to calculate how infinite light paths bounce off shapes, textures, and mirrors. The Screen Space Revolution ReShade 5.3 and RTGI 0.33 Update | August 2022 rtgi 0.17.0.2 release
Because it relies on screen-space data, objects hidden behind the camera or blocked by the user interface will not contribute to the lighting equation. However, the blending algorithms in 0.17.0.2 mitigate this limitation seamlessly, ensuring that light transitions remain smooth as the camera rotates. To optimize your specific configuration, let me know: Which you are modding? What GPU you are using? If you need help fixing depth buffer issues?
The 2–5% uplift on NVIDIA Turing+ is real but subtle. More importantly, is improved. The old stutter when temporal accumulation resets (e.g., after a loading screen or cutscene) is almost gone. On AMD, the crash fix for depth buffer toggling is a lifesaver—no more CTDs when alt-tabbing.
Before diving into the specifics of this release, it is essential to understand what RTGI is and why it is so important. RTGI is a post-processing shader for ReShade, an injection tool that applies various visual effects to games in real-time. Unlike traditional game lighting, which is largely pre-baked or relies on screen-space approximations like Ambient Occlusion (SSAO), RTGI physically simulates how light bounces around a scene. It accurately models both diffuse and specular global illumination, resulting in lighting that is not only dynamic but also incredibly temporally stable, minimising common issues like flickering or lag. Color Bleeding | Category | Score (out of
If you’ve never tried RTGI, this is the version to start with. If you’re a veteran, update for the stability and slightly faster frame times. And always, always pair it with a good ambient occlusion shader (like MXAO) for dark corners that screen-space rays miss.
Summary
The release of by legendary graphics modifier Pascal Gilcher (better known as Marty McFly) marks an important milestone in community-driven post-processing technology . The Ray Traced Global Illumination (RTGI) shader brings hardware-independent, real-time light bounces to classic and modern video games alike. By rewriting how screen-space depth data interacts with post-process rendering pipelines, this specific version laid the groundwork for modern injectors. It remains a beloved landmark release within the PC modding community. What is RTGI and How Does It Work? | | Ease of Setup | 6 |
: Adds real-time light bounces to game environments, making colors and shadows feel more physically accurate. Hardware Independence : Unlike native RTX implementations, RTGI works on non-RTX hardware
To appreciate what makes the 0.17.0.2 version a critical stepping stone, it helps to understand what the shader actually does.
: Refined the ray-tracing loop to reduce the GPU overhead, specifically for users running higher resolutions.
The performance-related improvements in 0.17.0.2 had a significant impact on how players configured and experienced the shader. Version 0.17.0.2 has remained a reference point for many ReShade preset creators, with some later presets explicitly requiring this specific version as a baseline.
The developers of RTGI have a clear roadmap for future updates and improvements. Some of the planned features and enhancements include: