Journal
ACM TRANSACTIONS ON GRAPHICS
Volume 22, Issue 3, Pages 621-630Publisher
ASSOC COMPUTING MACHINERY
DOI: 10.1145/882262.882316
Keywords
modeling - light sources; modeling - object scanning/acquisition; modeling - physically-based modelling; rendering - global illumination; rendering - image-based rendering; rendering - raytracing
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Realistic image synthesis requires both complex and realistic models of real-world light sources and efficient rendering algorithms to deal with them. In this paper, we describe a processing pipeline for dealing with complex light sources from acquisition to global illumination rendering. We carefully design optical filters to guarantee high precision measurements of real-world light sources. We discuss two practically feasible setups that allow us to measure light sources with different characteristics. Finally, we introduce an efficient importance sampling algorithm for our representation that can be used, for example, in conjunction with Photon Maps.
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