TY - GEN
T1 - Real-time Rendering of Layered Materials with Anisotropic Normal Distributions
AU - Yamaguchi, Tomoya
AU - Yatagawa, Tatsuya
AU - Tokuyoshi, Yusuke
AU - Morishima, Shigeo
N1 - Funding Information:
This paper was supported by the JST ACCEL (JPMJAC1602) and JSPS KAKENHI (JP17H06101, 18K18075, and JP19H01129).
Publisher Copyright:
© 2019 Association for Computing Machinery.
PY - 2019/11/17
Y1 - 2019/11/17
N2 - 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.
AB - 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.
KW - Layered materials
KW - Microfacet BSDF
KW - Real-time rendering
UR - http://www.scopus.com/inward/record.url?scp=85076706838&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85076706838&partnerID=8YFLogxK
U2 - 10.1145/3355088.3365165
DO - 10.1145/3355088.3365165
M3 - Conference contribution
AN - SCOPUS:85076706838
T3 - SIGGRAPH Asia 2019 Technical Briefs, SA 2019
SP - 87
EP - 90
BT - SIGGRAPH Asia 2019 Technical Briefs, SA 2019
PB - Association for Computing Machinery, Inc
T2 - SIGGRAPH Asia 2019 Technical Briefs - International Conference on Computer Graphics and Interactive Techniques, SA 2019
Y2 - 17 November 2019 through 20 November 2019
ER -