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Advances in Spatial Hashing: A Pragmatic Approach towards Robust Real-time Light Transport Simulation
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DescriptionSpatial hashing is a battle-tested technique for efficient storage of sparse spatial data. We extend this approach to glossy reflections using world-space temporal filtering. We also optimize the hash key generation for better cache coherence and aliasing reduction. Finally, we increase the sampling quality, in particular using visibility-aware environment sampling.