Reflected and Transmitted Irradiance from Area Sources using Vertex Tracing

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dc.contributor.authorStark, Michael M.en_US
dc.contributor.authorRiesenfeld, Richard F.en_US
dc.contributor.editorS. J. Gortle and K. Myszkowskien_US
dc.date.accessioned2014-01-27T13:49:07Z
dc.date.available2014-01-27T13:49:07Z
dc.date.issued2001en_US
dc.description.abstractComputing irradiance analytically from polygonal luminaires in polygonal environments has proven effective for direct lighting applications in diffuse radiosity environments. Methods for analytic integration have traditionally used edge-based solutions to the irradiance integral; our previous work presented a vertex-based analytic solution, allowing irradiance to be computed incrementally by ray tracing the apparent vertices of the luminaire. In this work we extend the vertex tracing technique to the analytic computation of irradiance from a polygonal luminaire in other indirect lighting applications: transmission through non-refractive transparent polygons, and reflection off perfectly specular polygons. Furthermore we propose an approximate method for computing transmitted irradiance through refractive polyhedra. The method remains effective in the presence of blockers.en_US
dc.description.seriesinformationEurographics Workshop on Renderingen_US
dc.identifier.isbn3-211-83709-4en_US
dc.identifier.issn1727-3463en_US
dc.identifier.urihttps://doi.org/10.2312/EGWR/EGWR01/013-024en_US
dc.publisherThe Eurographics Associationen_US
dc.titleReflected and Transmitted Irradiance from Area Sources using Vertex Tracingen_US
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EGWR01: 12th Eurographics Workshop on Rendering