A factored composite wax material model applied to the Stanford dragon. The material is composed of two kinds of wax with different scattering properties. Left:
illuminated by an area light source from above. Right: illuminated from above by a texture projection light.
Many translucent materials exhibit heterogeneous subsurface scattering,
which arises from complex internal structures. The acquisition
and representation of these scattering functions is a complex
problem that has been only partially addressed in previous techniques.
Unlike homogeneous materials, the spatial component of
heterogeneous subsurface scattering can vary arbitrarily over surface
locations. Storing the spatial component without compression
leads to impractically large datasets. In this paper, we address the
problem of acquiring and compactly representing the spatial component
of heterogeneous subsurface scattering functions. We propose
a material model based on matrix factorization that can be
mapped onto arbitrary geometry, and, due to its compact form, can
be incorporated into most visualization systems with little overhead.
We present results of several real-world datasets that are acquired
using a projector and a digital camera.
- This paper's page at KU Leuven (contains links to presentation, video, and technical report).
Pieter Peers, Karl vom Berge, Wojciech Matusik, Ravi Ramamoorthi, Jason Lawrence, Szymon Rusinkiewicz, and Philip Dutré.
"A Compact Factored Representation of Heterogeneous Subsurface Scattering."
ACM Transactions on Graphics (Proc. SIGGRAPH) 25(3), July 2006.
author = "Pieter Peers and Karl vom Berge and Wojciech Matusik and Ravi
Ramamoorthi and Jason Lawrence and Szymon Rusinkiewicz and
title = "A Compact Factored Representation of Heterogeneous Subsurface Scattering",
journal = "ACM Transactions on Graphics (Proc. SIGGRAPH)",
year = "2006",
month = jul,
volume = "25",
number = "3"