Reshade Ray Tracing Shader Rtgi 033 !!link!! -

Path tracing is inherently noisy. RTGI 0.33 features an advanced spatial-temporal denoiser.

While native ray tracing (DXR) utilizes hardware-accelerated calculations based on the entire 3D scene,

In the preprocessor settings, set RT_RENDER_SCALE to 0.5 . This forces the shader to calculate ray tracing at half your native resolution, drastically improving FPS with minimal loss in lighting accuracy.

This article serves as a comprehensive guide to RTGI 0.33, explaining what it is, why version 0.33 remains a significant milestone, and how to master its installation, configuration, and optimization. reshade ray tracing shader rtgi 033

The path forward is even more exciting. Gilcher’s ongoing work on HiZ tracing, gradient‑descent sampling, and eventual split of diffuse/specular shaders promises even higher fidelity and greater customisation. Yet the core concept remains as compelling as ever: light bounces, and with RTGI, so can your games .

Whether you are looking to revitalize a classic like Skyrim or enhance the atmosphere of a newer title, understanding how RTGI 0.33 works and how to optimize it is key to achieving photorealism without melting your graphics card. What is ReShade RTGI 0.33?

Download the latest version of ReShade from the official website. Path tracing is inherently noisy

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:

Version 0.33 specifically revolutionized this process by integrating with the . This pairing introduces optical flow motion vectors directly to the ray-tracing math. Instead of recalculating every ray completely fresh on each frame—which historically led to heavy visual noise or severe trailing artifacts—the shader tracks pixel movement over time. This temporal tracking yields incredibly stable denoising filters, cleaner light accumulation, and vastly superior performance when the camera is in motion.

: Search for this shader in the list and enable it. This forces the shader to calculate ray tracing

Copy the contents of the RTGI Shaders folder into reshade-shaders/Shaders .

Unlike native DirectX Raytracing (DXR) which utilizes hardware RT cores to calculate light interactions across an entire game world, RTGI uses . It reads the game’s depth buffer—the data determining how far objects are from the camera—and casts virtual light rays across the pixels visible on your screen.