NVIDIA has announced an update to the NvRTX branch of Epic’s Unreal Engine 5. The major new feature is the addition of experimental support for ReSTIR Global Illumination, the ray tracing algorithm first discussed by NVIDIA researchers in the seminal paper Spatiotemporal Reservoir Resampling for Real-Time Ray Tracing with Dynamic Direct Lighting released at ACM SIGGRAPH 2020. ReSTIR GI allows ‘direct lighting from millions of moving lights’ with ray budgets that are compatible with the demands of real-time rendering for games. The approach also doesn’t require complex light structure, baking, or global scene parameterization, while still providing results up to […]
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