Reshade Ray Tracing Shader Rtgi 033 2021 Info

If you are digging through 2021 archives, you want to know which games looked best.

RTGI (Ray Traced Global Illumination) is a ReShade shader that approximates the visual effects of hardware-accelerated Ray Tracing (like DLSS or DXR) on almost any game, even those that don't natively support it.

| GPU Class (2021) | Rays/Pixel | FPS (Native) | FPS (RTGI v0.33) | Overhead | |----------------|-------------|--------------|------------------|-----------| | GTX 1060 6GB | 2 | 60 | 28-32 | ~50% loss | | RTX 2060 | 3 | 60 | 40-45 | ~25-33% loss | | RTX 3080 | 5 | 144 | 95-105 | ~27% loss |

Note: v0.33 predates ReShade’s depth buffer optimizations introduced in v4.9+; modern cards achieve better results.

How does the 2021 build hold up against today's "Martyan" or "qUINT" shaders?

For most retro-fitting, version 0.33 remains the best "entry level" ray tracing mod. It hits the sweet spot of visual impact versus computational cost.

When you enable the ReShade ray tracing shader RTGI 0.33, you gain access to a suite of adjustable parameters. Here is what mattered in 2021:

Unlike 2023’s RTGI 1.0 (which required a paid Patreon sub for early access), v0.33 was freely available on GitHub and community forums, cementing its legacy.

RTGI 0.33 works by analyzing a single frame of a game (the depth buffer and color buffer) and tracing rays in screen-space. It asks: "Where is light bouncing from the pixels I can see?" reshade ray tracing shader rtgi 033 2021

Because it cannot see around corners (no BVH structures like RTX cards), it sometimes fails, causing "light leaks" or missing reflections. However, in 2021, version 0.33 introduced a critical improvement: Temporal Stability. Older versions flickered wildly. Version 0.33 smoothed out the noise, making it feel shockingly close to hardware ray tracing.

The RTGI 0.3.3 shader from 2021, compatible with Reshade, marks a notable point in the evolution of real-time lighting technology. By bringing advanced ray tracing and global illumination capabilities to a wide range of games and applications, it helps bridge the gap between pre-rendered and real-time graphics, pushing the boundaries of visual fidelity in interactive media.

RTGI (Ray Traced Global Illumination) shader, developed by Pascal Gilcher (known as "Marty McFly"), is a post-processing tool for

that simulates real-time ray-traced lighting in games. The version

, released in late 2021 into early 2022, represents a significant milestone in its development. Key Features of RTGI 0.33 (2021/2022) Motion Vector Support

: Version 0.33 introduced the use of motion vectors, which allow the shader to track object movement across frames. This significantly improves temporal stability, reducing the "ghosting" and "shimmering" effects common in earlier versions. Hardware Independence

: Unlike native RTX ray tracing, RTGI does not require dedicated RT cores. It operates by tracing rays against the game's depth buffer

and screen data, making it compatible with older GPUs, though it remains performance-heavy. Improved Global Illumination

: It accurately models how light bounces off surfaces, transferring colors from one object to another (color bleeding) and adding realistic ambient occlusion (AO) that grounds objects in the scene. NVIDIA Collaboration If you are digging through 2021 archives, you

: The success of this shader led NVIDIA to adopt a version of it, known as

(Screen Space Ray Traced Global Illumination), directly into their GeForce Experience driver modules. Technical Context and Access How install RTGI/ReShade (2021) GTA 5 MODS

The ReShade RTGI (Ray Traced Global Illumination) shader, specifically version 0.33, was a significant update released in late 2021/early 2022 that introduced motion vectors to improve temporal stability and reduce ghosting.

Below is a guide for setting up and optimizing this specific version. 1. Requirements & Access Developer: Created by Pascal Gilcher (Marty McFly).

Access: This version was typically accessed via Marty's Mods Patreon (Breakfast/Beta tier).

Hardware: Unlike native RTX, RTGI works on non-RTX cards (GTX, AMD) because it uses the game's depth buffer rather than dedicated hardware cores. 2. Installation Steps

Install ReShade: Download the latest version (or 4.9.1+ for 2021 compatibility) from ReShade.me. Run the installer, select your game's .exe, and choose the correct API (DirectX 11/12 or Vulkan). Add RTGI Files:

Locate your game's directory and find the reshade-shaders folder.

Extract the RTGI .zip and drag the contents of the Shaders and Textures folders into the corresponding reshade-shaders/Shaders and reshade-shaders/Textures directories. For most retro-fitting, version 0

Launch & Activate: Press Home in-game to open the ReShade menu. Search for RTGI and check the box to enable it. 3. Critical Configuration: The Depth Buffer

RTGI will not work correctly (or at all) if your depth buffer is misconfigured.

Enable DisplayDepth: Turn on the DisplayDepth.fx shader. You should see a grayscale representation of the world.

If it's blank/broken: Go to the Add-ons (or DX11/DX12) tab in ReShade and try different depth buffer checkboxes until the image appears correctly.

Common Fix: Disable in-game Anti-Aliasing (MSAA) as it often breaks depth access. 4. Version 0.33 Specific Optimization

Version 0.33 emphasizes the balance between performance and visual noise. Ray Amount & Step Amount: Performance: Ray Amount: 3 | Ray Step Amount: 6. Balanced: Ray Amount: 3 | Ray Step Amount: 9. Quality: Ray Amount: 5 | Ray Step Amount: 12+.

Motion Vectors: In version 0.33, ensuring motion vectors are correctly tracked helps the shader "remember" lighting from previous frames, significantly reducing flickering.

Denoising: Use the Spatial Filter (Preprocessor Definition: SPATIAL_FILTER=1) for a cleaner look at the cost of a small performance hit. ReShade 5.3 and RTGI 0.33 Update | August 2022

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Reshade Ray Tracing Shader Rtgi 033 2021 Info