Real-time Soft Shadows with Shadow Accumulation

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Date
2006
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
This paper presents a physically plausible soft-shadow algorithm that can be executed real-time by current GPUs. The method works with a single shadow map, requires no pre- or post-processing, and can also handle self shadowing. The main novelty of the method is in the interpretation of the shadow map. A lexel with depth information is considered as the geometric definition of an elementary shadow caster. When the shadowing of a point is computed, the algorithm decides whether these elementary casters occlude the light source area from the shaded point, and the shadowing factors of the elementary casters are accumulated.
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@inproceedings{
10.2312:egs.20061026
, booktitle = {
EG Short Papers
}, editor = {
Dieter Fellner and Charles Hansen
}, title = {{
Real-time Soft Shadows with Shadow Accumulation
}}, author = {
Aszódi, Barnabás
and
Szirmay-Kalos, László
}, year = {
2006
}, publisher = {
The Eurographics Association
}, ISBN = {}, DOI = {
10.2312/egs.20061026
} }
Citation