It adds fully dynamic diffuse and specular global illumination, allowing light to bounce between surfaces realistically. Screen-Space Limitations:
| GPU | 1080p Performance (RTGI Medium, 2 bounces) | |------|-----------------------------------------------| | GTX 1060 6GB | 35–50 FPS (from 60–70 native) | | GTX 1080 Ti | 55–70 FPS (from 90–100 native) | | RTX 2060 | 60–75 FPS (RT cores unused, pure compute) |
💡 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 reshade ray tracing shader rtgi 033 2021
This version refined the balance between diffuse lighting (soft color bounces) and specular reflections, allowing for more realistic metallic and wet surfaces.
No shader is perfect, and v0.33 had known issues that users learned to live with: It adds fully dynamic diffuse and specular global
: One of the most critical additions in 0.33 was support for motion vectors, which allows the shader to better track object movement, significantly reducing the "ghosting" or "wobbling" artifacts seen in older builds. Improved Blending
In 2021, running was computationally expensive. On a mid-range card like the GTX 1660 Super or RTX 2060, expect a 20-40% performance hit in most games. No shader is perfect, and v0
. This allows the shader to track object movement across frames, significantly reducing the "ghosting" or trailing artifacts common in previous screen-space ray tracing implementations. Improved Global Illumination
This particular release marked a maturity point for screen-space path tracing. It allowed users to bring modern lighting techniques—like realistic bounce light, ambient occlusion, and specular reflections—into older titles that never supported them. Let’s explore the significance, functionality, and impact of the RTGI 0.3.3 shader in 2021. What is ReShade RTGI 0.3.3?
Running it at 4K was extremely demanding. Many users in 2021 paired it with resolution scaling (running the game at 1080p/1440p and upscaling) to maintain 60 FPS.