Azimuthal Scattering from Elliptical Hair Fibers

被引:14
|
作者
Khungurn, Pramook [1 ]
Marschner, Steve [1 ]
机构
[1] Cornell Univ, Dept Comp Sci, Ithaca, NY 14853 USA
来源
ACM TRANSACTIONS ON GRAPHICS | 2017年 / 36卷 / 02期
基金
美国国家科学基金会;
关键词
Hair; fibers; optical scattering; rendering; LIGHT-SCATTERING;
D O I
10.1145/2998578
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
The appearance of hair follows from the small-scale geometry of hair fibers, with the cross-sectional shape determining the azimuthal distribution of scattered light. Although previous research has described some of the effects of non-circular cross sections, no accurate scatteringmodels for non-circular fibers exist. This article presents a scattering model for elliptical fibers, which predicts that even small deviations from circularity produce important changes in the scattering distribution and which disagrees with previous approximations for the effects of eccentricity. To confirm the model's predictions, new scattering measurements of fibers from a wide range of hair types were made, using a new measurement device that provides a more complete and detailed picture of the light scattered by fibers than was previously possible. The measurements show features that conclusively match the model's predictions, but they also contain an ideal-specular forward-scattering behavior that is not predicted and has not been fully described before. The results of this article indicate that an accurate and efficient method for computing scattering in elliptical cylinders-something not provided in this article-is the correct model to use for realistic hair in the future and that the new specular behavior should be included as well.
引用
收藏
页数:23
相关论文
共 50 条
  • [1] Scattering from Elliptical Hair Fibers Based on Microfacet Theory
    Huang, Weizhen
    Hullin, Matthias B.
    Hanika, Johannes
    PROCEEDINGS OF SIGGRAPH 2022 POSTERS, SIGGRAPH 2022, 2022,
  • [2] LIGHT-SCATTERING FROM ELLIPTICAL FIBERS
    MARCUSE, D
    APPLIED OPTICS, 1974, 13 (08): : 1903 - 1905
  • [3] Light scattering from human hair fibers
    Marschner, SR
    Jensen, HW
    Cammarano, M
    Worley, S
    Hanrahan, P
    ACM TRANSACTIONS ON GRAPHICS, 2003, 22 (03): : 780 - 791
  • [4] Studies of light scattering from ethnic hair fibers
    Keis, K
    Ramaprasad, KR
    Kamath, YK
    JOURNAL OF COSMETIC SCIENCE, 2004, 55 (01) : 49 - 63
  • [5] ON THE ANALYSIS OF SMALL-ANGLE SCATTERING WITH ELLIPTICAL AZIMUTHAL SYMMETRY
    HALL, PL
    MILDNER, DFR
    JOURNAL OF APPLIED PHYSICS, 1983, 54 (01) : 427 - 428
  • [6] A combined scattering and diffraction model for elliptical hair rendering
    Benamira, Alexis
    Pattanaik, Sumanta
    COMPUTER GRAPHICS FORUM, 2021, 40 (04) : 163 - 175
  • [8] Single Radial/Azimuthal Mode Photonic Crystal Fibers With Anisotropic Elliptical-Hole Lattice Core
    Zhong, Zheng
    Tsuji, Yasuhide
    Eguchi, Masashi
    IEEE PHOTONICS TECHNOLOGY LETTERS, 2017, 29 (16) : 1285 - 1288
  • [9] SCATTERING FROM AN INFINITE ELLIPTICAL CYLINDER
    FRASER, RDB
    MACRAE, TP
    ACTA CRYSTALLOGRAPHICA, 1959, 12 (02): : 171 - 171
  • [10] Azimuthal dependence of Bragg scattering from the ocean surface
    Hayek, CS
    Schurman, IW
    Sweeney, JH
    Boyles, CA
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1999, 105 (04): : 2129 - 2141