Self shadowing and local illumination of randomly rough surfaces

被引：0
|
作者：
Sun, YL [1 ]
机构：
[1] Purdue Univ, Dept Comp Sci, W Lafayette, IN 47907 USA
来源：
PROCEEDINGS OF THE 2004 IEEE COMPUTER SOCIETY CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION, VOL 1 | 2004年
关键词：
self shadowing; local illumination; rough surface; multiple scattering; reflection;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
This paper develops an analytic model for self shadowing and local illumination of rough surfaces. The surface is assumed homogeneous, isotropic, and smooth microscopically, with a Gaussian height field. The total reflection is decomposed into single and multiple scattering. A shadowing factor is derived as a function of surface roughness, and color variation due to multiple scattering is described. This model is compared to previous models and the effects of surface roughness are studied via rendered images.
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页码：158 / 165
页数：8
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