Proceedings: GI 1999

Efficient Glossy Global Illumination with Interactive Viewing

Marc Stamminger , Annette Scheel , Xavier Granier , Frederic Perez-Cazorla , George Drettakis , François Sillion

Proceedings of Graphics Interface '99: Kingston, Ontario, Canada, 2 - 4 June 1999, 50-57

DOI 10.20380/GI1999.08

  • BibTeXex

     title = {Efficient Glossy Global Illumination with Interactive Viewing},
     author = {Marc Stamminger and Annette Scheel and Xavier Granier and Frederic Perez-Cazorla and George Drettakis and Fran{c{c}}ois X. Sillion},
     booktitle = {Proceedings of the Graphics Interface 1999 Conference, June 2-4, 1999, Kingston, Ontario, Canada},
     year = {1999},
     month = {June},
     pages = {50--57},
     url = {}


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.