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Authors:Anders Hast: Creative Media Lab, University of Gävle, Sweden
Daniel Wesslén: University of Gävle, Sweden
Stefan Seipel: University of Gävle, Sweden
Publication title:Improved Diffuse Anisotropic Shading
Conference:The Annual SIGRAD Conference. Special Theme - Environmental Visualization
Publication type: Abstract and Fulltext
Article No.:014
Abstract:Cloth; hair; brushed metal; and other surfaces with small; regular surface features exhibit anisotropic reflectance properties for which common isotropic shading methods are not suited. Shading of such materials is often implemented by computing the normal giving the maximum light contribution instead of solving the integral that is the sum of all reflected light. In this paper we show that this integral can be simplified if the direction to the viewer and fibre geometry is not taken into account. Still; this will give a more accurate result than the very rough simplification of using the maximum contribution. This computation is simple for diffuse light. However; the specular light still needs some more elaboration to work.
Keywords:Anisotropic shading; diffuse light
No. of pages:2
Series:Linköping Electronic Conference Proceedings
ISSN (print):1650-3686
ISSN (online):
Publisher:Linköping University Electronic Press; Linköpings universitet

Anders Hast, Daniel Wesslén, Stefan Seipel (2004). Improved Diffuse Anisotropic Shading, The Annual SIGRAD Conference. Special Theme - Environmental Visualization;article=014 (accessed 2/6/2016)