A Rendering Equation for Specular Transfers and Its Integration into Global Illumination
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Date
1997
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Publisher
Blackwell Publishers Ltd and the Eurographics Association
Abstract
In this paper, we present a rigorous theoretical formulation of the fundamental problem-indirect illumination from area sources via curved ideal specular surfaces. Intensity and area factors are introduced to clarify this problem and to rectify the radiance from these specular surfaces. They take surface geometry, such as Gaussian curvature, into account. Based on this formulation, an algorithm for integrating ideal specular transfers into global illumination is also presented. This algorithm can deal with curved specular reflectors and transmitters. An implementation is described based on wavefront tracing and progressive radiosity. Sample images generated by this method are presented.
Description
@article{10.1111:1467-8659.00165,
journal = {Computer Graphics Forum},
title = {{A Rendering Equation for Specular Transfers and Its Integration into Global Illumination}},
author = {Yu, Yizhou and Wu, Hong},
year = {1997},
publisher = {Blackwell Publishers Ltd and the Eurographics Association},
ISSN = {1467-8659},
DOI = {10.1111/1467-8659.00165}
}