Shading and Shadowing with Linear Light Sources
Loading...
Date
1990
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Eurographics Association
Abstract
In virtually all rendering systems, linear light sources are modeled with a series of point light sources that require considerable computing resources to produce realistic looking results. A general solution for shading surfaces illuminated by a linear light source is proposed. A formulation allowing for faster computation of the diffuse component of light reflection is derived. By assuming Phong's specular component, simple, inexpensive and convincing results are produced with the use of a Chebyshev approximation. A shadowing algorithm is also presented. As shadowing from linear light sources is expensive, two acceleration schemes, extended from ray tracing, are evaluated.
Description
@inproceedings{10.2312:egtp.19901030,
booktitle = {EG 1990-Technical Papers},
editor = {},
title = {{Shading and Shadowing with Linear Light Sources}},
author = {Poulin, Pierre and Amanatides, John},
year = {1990},
publisher = {Eurographics Association},
ISSN = {1017-4656},
ISBN = {},
DOI = {10.2312/egtp.19901030}
}