RTGI is a popular screen-space post-processing shader that approximates global illumination (light bouncing off surfaces) in games that do not natively support ray tracing. Version 0.25+ introduced significant adjustments to lighting controls, particularly the , which allows users to blend effects more naturally into scenes with fog or distant horizons. Key Features & Performance
“The difference is subtle but noticeable. It makes some scenes and areas very moody and ambient.” Reddit · r/Falcom · 3 weeks ago Important Considerations RTGI 0.25.rar
: Adds realistic light bounce and ambient occlusion to enhance scene depth and mood. RTGI is a popular screen-space post-processing shader that
: Version 0.25+ features multiple "fade out" options to prevent harsh lighting cutoffs in the distance, specifically helping with fog-heavy scenes. It makes some scenes and areas very moody and ambient
“If you're at all interested in photomodes and screenarchery of any kind, it is definitely worth getting the RTGI shader, it's extremely powerful.” Reddit · r/prey · 1 year ago
: Official versions of this shader are typically distributed through Marty McFly's Patreon , where it often remains in a "beta" or "alpha" state for paid supporters.