Reshade Rtgi 0.36.1 [2021] -

Controls the number of rays cast per pixel. Higher numbers reduce noise but tank your frame rate. Set this to 3 for gameplay, or 5+ for taking screenshots. Lighting & Bounces

RTGI (often referred to as the "Marty McFly Mod") is a shader that simulates . In standard rasterized games, shadows are either completely black or artificially brightened. RTGI calculates how light bounces off surfaces (diffuse illumination) and, to a lesser extent, how it reflects (specular). The result is that dark corners become softly lit by bounce light from nearby walls or the sky, mimicking real-world physics.

RTGI is demanding. Even with 0.36.1 optimization, rendering ray tracing in screen space requires significant GPU power.

: Simulates how light bounces off surfaces, creating natural "color bleeding" where bright objects cast their hue onto nearby walls and floors. Ambient Occlusion Upgrade

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: You need a recent version of ReShade (preferably with Full Add-on Support to access the depth buffer in multiplayer games, though this can trigger anti-cheat). Depth Buffer Access

ReShade RTGI 0.36.1, developed by Pascal Gilcher, provides screen-space ray-traced global illumination and diffuse lighting to improve visual fidelity in games. This iteration offers enhanced motion stability and accuracy over earlier versions, while typically requiring a 15% performance decrease to simulate realistic light bouncing. For further technical details, visit Marty's Mods . ReShade RTGI | Ray Traced Global Illumination

Unlike native RTX, RTGI does not require dedicated ray-tracing hardware cores (RT cores). It runs on standard compute shaders.

Enable so light interacts uniquely with metals versus fabrics. Troubleshooting Common Issues Controls the number of rays cast per pixel

For RTGI to calculate light properly, it must see the game’s 3D depth map.

The result is dramatically improved ambient occlusion, color bleeding (e.g., a red wall subtly tinting a white floor), and softer, more natural shadow fill.

Because RTGI reads the image data on screen, UI elements like minimaps or health bars can sometimes cast a strange visual glow. To fix this, use ReShade's layer sorting to place the RTGI shader below any UI-masking shaders, or utilize UI-masking add-ons. Conclusion

When prompted, choose the version with full add-on support . This is mandatory for ReShade to access the depth buffer in multiplayer or protected games. Lighting & Bounces RTGI (often referred to as

Toggle this on. It accurately fills dark corners with realistic ambient light bounces for a minimal hardware cost. Troubleshooting Common Issues Issue 1: Light Bleeding Through Walls

Better approximation of multiple light bounces, making dark corners look naturally lit rather than pitch black.

Video game visuals have evolved at a breakneck pace, but nothing matches the transformative impact of ray tracing. True, hardware-accelerated ray tracing (via Nvidia RTX or AMD Radeon RX cards) delivers stunning realism, but it is often locked behind modern GPUs and native game support.

To maximize performance without sacrificing visuals:

Unlike standard lighting, RTGI calculates how light from primary sources (like the sun or lamps) interacts with the environment, generating natural secondary bounces and soft shadows.