Optimizing BRDF Orientations for the Manipulation of Anisotropic Highlights
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Date
2014
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association and John Wiley and Sons Ltd.
Abstract
This paper introduces a system for the direct editing of highlights produced by anisotropic BRDFs, which we call anisotropic highlights. We first provide a comprehensive analysis of the link between the direction of anisotropy and the shape of highlight curves for arbitrary object surfaces. The gained insights provide the required ingredients to infer BRDF orientations from a prescribed highlight tangent field. This amounts to a non-linear optimization problem, which is solved at interactive framerates during manipulation. Taking inspiration from sculpting software, we provide tools that give the impression of manipulating highlight curves while actually modifying their tangents. Our solver produces desired highlight shapes for a host of lighting environments and anisotropic BRDFs.
Description
@article{:10.1111/cgf.12300,
journal = {Computer Graphics Forum},
title = {{Optimizing BRDF Orientations for the Manipulation of Anisotropic Highlights}},
author = {Raymond, Boris and Guennebaud, Gaƫl and Barla, Pascal and Pacanowski, Romain and Granier, Xavier},
year = {2014},
publisher = {The Eurographics Association and John Wiley and Sons Ltd.},
ISSN = {1467-8659},
DOI = {/10.1111/cgf.12300}
}