Reshade Ray Tracing Shader Rtgi 033 Today

Image Suggestion: A side-by-side comparison screenshot (Before/After) or a moody in-game shot showing off the color bleeding.

Caption: Finally got my hands on the new RTGI 0.33 update for ReShade. 🤯

The improvements to temporal stability are a game-changer—no more shimmering while moving the camera. The lighting feels so much more natural and grounded now. It’s crazy what a shader can do for immersion in games that are years old.

Who else is testing this out? Let me know your FPS hit below! 👇 reshade ray tracing shader rtgi 033

Tags: #Reshade #RTGI #RayTracing #PCMasterRace #GamingSetup #GraphicsMods #ScreenArchery #Lighting #GameDev

| Limitation | RTGI 0.33 | NVIDIA RTX DI | Unreal Engine 5 Lumen | |------------|-----------|---------------|------------------------| | World-space rays | No | Yes | Yes | | Hardware acceleration | No | Yes (RT cores) | Yes (software/hardware) | | Support for dynamic lights | Partial | Full | Full | | Reflections | No | Yes | Yes (software) | | Off-screen GI | No | Yes | Yes (via Surface Cache) |

While ReShade has long been used for post-processing effects like bloom, HDR, or ambient occlusion (SSAO), RTGI v0.33 is distinct because it is a screen-space ray tracing solution. It relies on the existing depth buffer and color information from the game to calculate bounces. | Limitation | RTGI 0

Version 0.33 is often cited as a sweet spot for many users. It introduced refined algorithms that offered better temporal stability (reducing the "shimmering" effect common in screen-space techniques) and improved performance optimization compared to earlier experimental builds. It proved that high-fidelity lighting didn't necessarily require an NVIDIA RTX card with dedicated RT cores, though it still requires substantial GPU shader power.

Use RTGI v0.33 if:

Skip it if:

| Feature | RTGI 0.33 (ReShade) | Native RTX/DXR | | :--- | :--- | :--- | | Hardware Required | Any DX11 GPU (GTX 900 series+) | RTX 2000 series / RX 6000+ | | Performance Hit | 30% - 50% | 20% - 40% (with DLSS) | | Reflections | No (Does not do mirrors) | Yes | | Shadows | No (Only ambient occlusion) | Yes (Sun shadows) | | Off-Screen Data | No (Screen-space only) | Yes (Full scene geometry) | | Cost | Free (0.33) | Included with game license |

Verdict: RTGI 0.33 is the best alternative for GPUs that lack RT cores. It turns flat, old games into moody, volumetric masterpieces.

You cannot find RTGI 0.33 on the official ReShade shader repository (Shadez) anymore. You must find the legacy archive (usually hosted on GitHub or community forums). Skip it if:

  • Max ray distance: 5–100 meters (or scene units).
  • Num bounces: 1 (default) — adding more bounces increases realism but multiplies cost; 1–2 is typical.
  • Temporal accumulation / blend factor: 0.85–0.99.
  • Denoiser strength: Low–Medium for subtle cleanup; High may blur fine detail.
  • Roughness-aware sampling: On for glossy materials; off if you want more diffuse-looking GI and slightly better performance.
  • Environment (sky) contribution: 0–1 (set according to how much sky/IBL you want to contribute).
  • Upscaling / internal resolution: Prefer rendering RTGI at half or quarter internal resolution when using high RPP to save performance; combine with high-quality denoiser.

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