Real-time Rendering of Layered Materials with Anisotropic Normal Distributions

Tomoya Yamaguchi, Tatsuya Yatagawa, Yusuke Tokuyoshi, Shigeo Morishima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a lightweight bidirectional scattering distribution function (BSDF) model for layered materials with anisotropic reflection and refraction properties. In our method, each layer of the materials can be described by a microfacet BSDF using an anisotropic normal distribution function (NDF). Furthermore, the NDFs of layers can be defined on tangent vector fields, which differ from layer to layer. Our method is based on a previous study in which isotropic BSDFs are approximated by projecting them onto base planes. However, the adequateness of this previous work has not been well investigated for anisotropic BSDFs. In this paper, we demonstrate that the projection is also applicable to anisotropic BSDFs and that they can be approximated by elliptical distributions using covariance matrices.

Original languageEnglish
Title of host publicationSIGGRAPH Asia 2019 Technical Briefs, SA 2019
PublisherAssociation for Computing Machinery, Inc
Pages87-90
Number of pages4
ISBN (Electronic)9781450369459
DOIs
Publication statusPublished - 2019 Nov 17
EventSIGGRAPH Asia 2019 Technical Briefs - International Conference on Computer Graphics and Interactive Techniques, SA 2019 - Brisbane, Australia
Duration: 2019 Nov 172019 Nov 20

Publication series

NameSIGGRAPH Asia 2019 Technical Briefs, SA 2019

Conference

ConferenceSIGGRAPH Asia 2019 Technical Briefs - International Conference on Computer Graphics and Interactive Techniques, SA 2019
CountryAustralia
CityBrisbane
Period19/11/1719/11/20

Keywords

  • Layered materials
  • Microfacet BSDF
  • Real-time rendering

ASJC Scopus subject areas

  • Software
  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition

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  • Cite this

    Yamaguchi, T., Yatagawa, T., Tokuyoshi, Y., & Morishima, S. (2019). Real-time Rendering of Layered Materials with Anisotropic Normal Distributions. In SIGGRAPH Asia 2019 Technical Briefs, SA 2019 (pp. 87-90). (SIGGRAPH Asia 2019 Technical Briefs, SA 2019). Association for Computing Machinery, Inc. https://doi.org/10.1145/3355088.3365165