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While it is not a replacement for native hardware ray tracing—due to screen-space limitations and a heavy performance tax—it serves as an incredible tool for breathing new life into older titles or enhancing games that lack advanced lighting.
If you are playing a modern AAA game with native ray tracing, no—ignore this shader.
RTGI is a premium shader available via Pascal Gilcher’s Patreon page. Ensure you download version 0.33 or newer.
Here is everything you need to know about setting up, tuning, and optimizing RTGI 0.33 for a next-gen gaming experience. What is ReShade RTGI 0.33?
In version 0.33, enabling the temporal accumulation limits allows you to lower raw ray counts while maintaining smooth, noise-free lighting over time.