Information
- Publication Type: Conference Paper
- Workgroup(s)/Project(s): not specified
- Date: December 2007
- Booktitle: GRAPHITE 2007
- ISBN: 978-1-59593-912-8
- Lecturer: Andrea Weidlich
- Location: Perth, Australia
- Pages (from): 171
- Pages (to): 178
- Publisher: ACM
Abstract
In this paper we present a method to combine several micro-facet based surface layers into a single unified, expressive BRDF model that is easy to use. The restriction to micro-facet based layers constitutes no loss of generality, since both perfectly specular and perfectly diffuse surfaces can be seen as limit cases of the micro-facet approach.
Such multi-layered surfaces can be used to re-create the appearance of a wide range of different materials, and yield good results without having to perform explicit sub–surface scattering computations. This is achieved through suitable approximations and simplifications of the scattering within the simulated layered surface, while still taking absorption and total internal reflection into account. We also discuss the corresponding probability distribution function that is needed for sampling purposes, and investigate how the flexibility of this new approach is best put to use.
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BibTeX
@inproceedings{weidlich_2007_almfs,
title = "Arbitrarily Layered Micro-Facet Surfaces",
author = "Andrea Weidlich and Alexander Wilkie",
year = "2007",
abstract = "In this paper we present a method to combine several
micro-facet based surface layers into a single unified,
expressive BRDF model that is easy to use. The restriction
to micro-facet based layers constitutes no loss of
generality, since both perfectly specular and perfectly
diffuse surfaces can be seen as limit cases of the
micro-facet approach. Such multi-layered surfaces can be
used to re-create the appearance of a wide range of
different materials, and yield good results without having
to perform explicit sub–surface scattering computations.
This is achieved through suitable approximations and
simplifications of the scattering within the simulated
layered surface, while still taking absorption and total
internal reflection into account. We also discuss the
corresponding probability distribution function that is
needed for sampling purposes, and investigate how the
flexibility of this new approach is best put to use. ",
month = dec,
booktitle = "GRAPHITE 2007",
isbn = "978-1-59593-912-8",
location = "Perth, Australia",
publisher = "ACM",
pages = "171--178",
URL = "https://www.cg.tuwien.ac.at/research/publications/2007/weidlich_2007_almfs/",
}