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Efficient Glossy Global Illumination with Interactive Viewing
Author(s) -
Stamminger Marc,
Scheel Annette,
Granier Xavier,
PerezCazorla Frederic,
Drettakis George,
Sillion François
Publication year - 2000
Publication title -
computer graphics forum
Language(s) - English
Resource type - Book series
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
ISBN - 1-55860-632-7
DOI - 10.1111/1467-8659.00385
Subject(s) - global illumination , radiosity (computer graphics) , computer science , radiance , computer graphics (images) , context (archaeology) , representation (politics) , computer vision , artificial intelligence , cluster analysis , rendering (computer graphics) , paleontology , physics , politics , law , political science , optics , biology
The ability to perform interactive walkthroughs of global illumination solutions including glossy effects is a challenging open problem. In this paper we overcome certain limitations of previous approaches. We first introduce a novel, memory‐ and compute‐efficient representation of incoming illumination, in the context of a hierarchical radiance clustering algorithm. We then represent outgoing radiance with an adaptive hierarchical basis, in a manner suitable for interactive display. Using appropriate refinement and display strategies, we achieve walkthroughs of glossy solutions at interactive rates for non‐trivial scenes. In addition, our implementation has been developed to be portable and easily adaptable as an extension to existing, diffuse‐only, hierarchical radiosity systems. We present results of the implementation of glossy global illumination in two independent global illumination systems.