Reducing Photon-Mapping Bandwidth by Query Reordering

Abstract

Photon mapping places an enormous burden on the memory hierarchy. Rendering a 512 x 512 image of a simple scene can require more than 196 Gbytes of raw bandwidth to the photon map data structure. This bandwidth is a major obstacle to real-time photon mapping. This paper investigates two approaches for reducing the required bandwidth: 1) reordering the kNN… (More)
DOI: 10.1109/TVCG.2007.70413

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