Rendering Fake Soft Shadows with Smoothies

Chan, Eric; Durand, Fredo

Rendering Fake Soft Shadows with Smoothies

Files

208-218.pdf (2.9 MB)

Date

2003

Authors

Chan, Eric
Durand, Fredo

Publisher

The Eurographics Association

Abstract

We present a new method for real-time rendering of shadows in dynamic scenes. Our approach builds on the shadow map algorithm by attaching geometric primitives that we call "smoothies" to the objects' silhouettes. The smoothies give rise to fake shadows that appear qualitatively like soft shadows, without the cost of densely sampling an area light source. The soft shadow edges hide objectionable aliasing artifacts that are noticeable with ordinary shadow maps. Our algorithm computes shadows efficiently in image space and maps well to programmable graphics hardware. We present results from several example scenes rendered in real-time.

        @inproceedings{:10.2312/EGWR/EGWR03/208-218
,
booktitle = {Eurographics Workshop on Rendering
},
editor = {Philip Dutre and Frank Suykens and Per H. Christensen and Daniel Cohen-Or
},
title = {{Rendering Fake Soft Shadows with Smoothies
}},
author = {Chan, Eric and 
Durand, Fredo
},
year = {2003
},
publisher = {The Eurographics Association
},
ISSN = {1727-3463
},
ISBN = {3-905673-03-7
},
DOI = {/10.2312/EGWR/EGWR03/208-218
}
}