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 fir st 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 implementationhas been developed to be portable and easily adaptable as an extension to existing, diffuse-only, hierarchical radiosity systems. We present results of the implementationof glossy global illumination in two independentglobal illumination systems.
['Marc Stamminger', 'Annette Scheel', 'Xavier Granier', 'Frederic Perez-Cazorla', 'George Drettakis', 'François X. Sillion']
Efficient glossy global illumination with interactive viewing