Reshade Ray Tracing Shader Rtgi 033 2021 ^new^ [Fast]
While the RTGI 0.3.3 shader offers impressive lighting capabilities, users should be aware of potential performance impacts. Ray tracing and global illumination calculations can be computationally intensive, potentially affecting frame rates, especially in more complex scenes.
The 0.33 iteration of RTGI solved several lingering issues from earlier beta builds, making it highly sought after by simulation fans, RPG players, and virtual photographers.
There were arguments, too. Purists said it changed an artist's intent. Speedrunners complained that light cues could reveal shortcuts. But new players discovered older games anew: a quiet corner rendered with newfound warmth; a storm-scape where puddles told a story about the sky. For many, the shader became a lens through which the virtual worlds felt less like surfaces and more like interiors. reshade ray tracing shader rtgi 033 2021
By utilizing ray tracing, the shader can trace the paths of light as they bounce off different surfaces, leading to a more realistic representation of light and shadow.
| 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) | While the RTGI 0
: Improvements were made to handle high-intensity light sources, preventing the "light flickering" that occurred when lighting values were tuned aggressively. Technical Impact on Visuals
Before 2021, most "fake ray tracing" shaders were simply screen-space reflections. changed the game by implementing a hybrid approach: screen-space ray marching combined with depth buffer information to create plausible light bounces. There were arguments, too
ENB presets are heavy. RTGI 0.33 combined with a simple weather mod (Cathedral) produced physically based lighting that Bethesda never coded. Caves actually became dark, and torches illuminated realistically.
⚠️ ReShade automatically disables depth access when it detects network activity (to prevent anti‑cheat triggers). For single‑player games you can often ignore this; for online games, RTGI may simply not work.
Unlike native RTX ray tracing, RTGI does not require specialized hardware (like RT cores) and can run on any powerful GPU, including older non-RTX cards. Global Illumination: