Path Integration for Light Transport in Volumes

Premoze, Simon; Ashikhmin, Michael; Shirley, Peter

Path Integration for Light Transport in Volumes

Files

052-063.pdf (945.4 KB)

Date

2003

Authors

Premoze, Simon
Ashikhmin, Michael
Shirley, Peter

Publisher

The Eurographics Association

Abstract

Simulating the transport of light in volumes such as clouds or objects with subsurface scattering is computationally expensive. We describe an approximation to such transport using path integration. Unlike the more commonly used diffusion approximation, the path integration approach does not explicitly rely on the assumption that the material within the volume is dense. Instead, it assumes the phase function of the volume material is strongly forward scattering and uniform throughout the medium, an assumption that is often the case in nature. We show that this approach is useful for simulating subsurface scattering and scattering in clouds.

        @inproceedings{:10.2312/EGWR/EGWR03/052-063
,
booktitle = {Eurographics Workshop on Rendering
},
editor = {Philip Dutre and Frank Suykens and Per H. Christensen and Daniel Cohen-Or
},
title = {{Path Integration for Light Transport in Volumes
}},
author = {Premoze, Simon and 
Ashikhmin, Michael and 
Shirley, Peter
},
year = {2003
},
publisher = {The Eurographics Association
},
ISSN = {1727-3463
},
ISBN = {3-905673-03-7
},
DOI = {/10.2312/EGWR/EGWR03/052-063
}
}