Real-time rendering of layered materials with anisotropic normal distributions
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 distributio...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-01-01
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| Series: | Computational Visual Media |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s41095-019-0154-z |
| _version_ | 1818930664737603584 |
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| author | Tomoya Yamaguchi Tatsuya Yatagawa Yusuke Tokuyoshi Shigeo Morishima |
| author_facet | Tomoya Yamaguchi Tatsuya Yatagawa Yusuke Tokuyoshi Shigeo Morishima |
| author_sort | Tomoya Yamaguchi |
| collection | DOAJ |
| description | 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 the BSDFs are approximated by elliptical distributions using covariance matrices. |
| first_indexed | 2024-12-20T04:04:18Z |
| format | Article |
| id | doaj.art-18b25a9b5ba448a2843fcf2891b0a5f1 |
| institution | Directory Open Access Journal |
| issn | 2096-0433 2096-0662 |
| language | English |
| last_indexed | 2024-12-20T04:04:18Z |
| publishDate | 2020-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Computational Visual Media |
| spelling | doaj.art-18b25a9b5ba448a2843fcf2891b0a5f12022-12-21T19:54:05ZengSpringerOpenComputational Visual Media2096-04332096-06622020-01-0161293610.1007/s41095-019-0154-zReal-time rendering of layered materials with anisotropic normal distributionsTomoya Yamaguchi0Tatsuya Yatagawa1Yusuke Tokuyoshi2Shigeo Morishima3Waseda UniversityThe University of TokyoIntel CorporationWaseda UniversityAbstract 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 the BSDFs are approximated by elliptical distributions using covariance matrices.https://doi.org/10.1007/s41095-019-0154-zlayered materialsmicrofacet BSDFreflection modelingreal-time rendering |
| spellingShingle | Tomoya Yamaguchi Tatsuya Yatagawa Yusuke Tokuyoshi Shigeo Morishima Real-time rendering of layered materials with anisotropic normal distributions Computational Visual Media layered materials microfacet BSDF reflection modeling real-time rendering |
| title | Real-time rendering of layered materials with anisotropic normal distributions |
| title_full | Real-time rendering of layered materials with anisotropic normal distributions |
| title_fullStr | Real-time rendering of layered materials with anisotropic normal distributions |
| title_full_unstemmed | Real-time rendering of layered materials with anisotropic normal distributions |
| title_short | Real-time rendering of layered materials with anisotropic normal distributions |
| title_sort | real time rendering of layered materials with anisotropic normal distributions |
| topic | layered materials microfacet BSDF reflection modeling real-time rendering |
| url | https://doi.org/10.1007/s41095-019-0154-z |
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