Reshade Ray - Tracing Shader Rtgi 033

When installing RTGI v0.33, users typically notice three immediate changes to the visual atmosphere:

It is important to understand what RTGI does—and does not—do, especially when comparing it to a game’s built‑in ray tracing.

If the right half of the DisplayDepth screen remains black (or entirely black on both sides) after trying the above: reshade ray tracing shader rtgi 033

Global Illumination just got a massive upgrade. 🌍💡

The computational cost of ray tracing, even in a screen-space implementation, is significant. This is the primary trade-off with RTGI 0.33. Performance degradation varies wildly based on your hardware specifications and the quality settings chosen within the shader. When installing RTGI v0

So, what makes RTGI 0.3.3 so special? Here are some of its key features:

Because it is a software-based post-process, it does not require dedicated RTX hardware and is compatible with any GPU supporting modern APIs like DirectX 9-12 or Vulkan. 3. Key Innovations in Version 0.33 This is the primary trade-off with RTGI 0

Since the widespread adoption of version 0.33, Pascal Gilcher has continued to refine his shaders. In mid‑2025, he released a major update that introduced several improvements:

It is important to understand the limitations of ReShade RTGI v0.33. Unlike native DXR (DirectX Raytracing) or Vulkan Ray Tracing, which have access to the full 3D geometry of the scene, ReShade only sees what is on the screen (the 2D image and depth buffer).

The magic of RTGI is that it runs on , no ray-tracing hardware required. It’s all compute shaders. But “runs” and “runs well” are two different things.

The world of computer graphics is constantly evolving, with developers and enthusiasts alike pushing the boundaries of what is possible. One of the most exciting advancements in recent years is the integration of ray tracing technology into graphics processing. ReShade, a popular post-processing injector, has taken this to the next level with its Ray Tracing Shader RTGI 0.3.3. In this write-up, we'll explore the capabilities of this innovative shader and what it means for the future of graphics rendering.