RTGI 0.33 doesn't modify the game's code; instead, it hooks into the framework. It utilizes the Depth Buffer —the 3D data the GPU uses to determine what is in front of what—to cast rays. Depth Access: ReShade captures the 3D "map" of the scene.
The is particularly notable for its optimizations. It bridges the gap between high-performance cost and visual accuracy, allowing players to experience the "RTX look" on hardware that might not natively support hardware-accelerated ray tracing, or in games that were released long before the technology existed. Key Features of the 0.33 Exclusive Build reshade ray tracing shader rtgi 033 exclusive
Improved precision in how light rays interact with the geometry provided by the game's depth map. RTGI 0