filename     : Papas13.pdf
entry        : inproceedings
conference   : ACM Transactions on Graphics (Proceedings of SIGGRAPH 2013), vol. 32, no. 4, July 2013
pages        : 146:1--146:12
year         : 2013
month        : July
title        : Fabricating Translucent Materials using Continuous Pigment Mixtures
subtitle     :
author       : Marios Papas, Christian Regg, Wojciech Jarosz, Bernd Bickel, Philip Jackson, Wojciech Matusik, Steve Marschner and Markus Gross
booktitle    : ACM Transactions on Graphics
ISSN/ISBN    : 0730-0301
editor       : 
publisher    : ACM
publ.place   : New York, NY, USA
volume       : 32
issue        : July 2013
language     : English
keywords     : fabrication, material design, subsurface scattering
abstract     : 
We present a method for practical physical reproduction and design of homogeneous materials with desired subsurface scattering. Our process uses a collection of different pigments that can be suspended in a clear base material. Our goal is to determine pigment concentrations that best reproduce the appearance and subsurface scattering of a given target material. In order to achieve this task we first fabricate a collection of material samples composed of known mixtures of the available pigments with the base material. We then acquire their reflectance profiles using a custom-built measurement device. We use the same device to measure the reflectance profile of a target material. Based on the database of mappings from pigment concentrations to reflectance profiles, we use an optimization process to compute the concentration of pigments to best replicate the target material appearance. We demonstrate the practicality of our method by reproducing a variety of different translucent materials. We also present a tool that allows the user to explore the range of achievable appearances for a given set of pigments.