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Wait-free shared-memory irradiance caching
Debattista, Kurt; Dubla, Piotr; Santos, Luís Paulo; Chalmers, AlanParallelizing rendering algorithms to exploit multiprocessor and multicore machines isn't straightforward. Certain methods require frequent synchronization among threads to obtain benefits similar to the sequential algorithm. One such algorithm is the irradiance cache (IC), an acceleration data structure that caches indirect diffuse irradiance values. In multicore systems, the threads must share the IC to achie...
Instant caching for interactive global Iilumination
Debattista, Kurt; Dubla, Piotr; Banterle, Francesco; Santos, Luís Paulo; Chalmers, AlanThe ability to interactively render dynamic scenes with global illumination is one of the main challenges in computer graphics. The improvement in performance of interactive ray tracing brought about by significant advances in hardware and careful exploitation of coherence has rendered the potential of interactive global illumination a reality. However, the simulation of complex light transport phenomena, such ...
Wait-free shared-memory irradiance cache
Dubla, Piotr; Debattista, Kurt; Santos, Luís Paulo; Chalmers, AlanThe irradiance cache (IC) is an acceleration data structure which caches indirect diffuse irradiance values within the context of a ray tracing algorithm. Previously calculated values can be stored and reused in future calculations; such reutilisation enables exploitation of spatial and, in static scenes, temporal coherence, resulting in an order of magnitude improvement in computational performance. In multith...
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