Acta Optica Sinica, Volume. 42, Issue 10, 1029001(2022)

Analysis and Improvement on Integral Geometrical Attenuation Factor of Bidirectional Reflection Distribution Function

Zhiyong Yang... Zhiwei Zhang*, Wei Cai and Gaoxiang Lu |Show fewer author(s)
Author Affiliations
  • Armament Launch Theory and Technology Key Discipline Laboratory of PRC, Rocket Force Engineering University, Xi′an 710025, Shaanxi, China
  • show less
    Figures & Tables(17)
    Diagram of microfacet reflection of T-S model
    Distribution of P(α) for different roughness σ
    Blinn model. (a) Masking effect; (b) shadowing effect
    GAF curves of Blinn, and BRDF curves before and after introducing Blinn’s GAF. (a) GAF curves of Blinn; (b) BRDF curves before and after introducing Blinn’s GAF
    Masking model in large reflection angle. (a) Complete passing model; (b) complete masking model; (c) semi-passing and semi-masking model
    Shadow model in large incidence angle. (a) Complete passing model; (b) complete shadow model; (c) semi-passing and semi-shadow model
    Masking coefficient G1 for different incident angle and roughness
    Shadow coefficient G2 for different incident angle and roughness
    Reflection models of surface 1. (a) Complete passing model; (b) complete shadow model; (c) semi-passing and semi-shadow model
    Reflection models of surface 2 when surface 1 is complete passing model. (a) Complete passing model; (b) complete masking model; (c) semi-passing and semi-masking model
    Reflection models of surface 2 when surface 1 is semi-shadow model. (a) Forward reflection; (b) vertical reflection; (c) backward reflection
    Reflection models of incident light shining directly on surface 2. (a) Forward reflection; (b) backward reflection
    Modified GAF curves at different incident angle (roughness is 0.4)
    Modified GAF curves under different roughness (incident angle is 30°)
    BRDF curves with and without modified GAF
    Blinn’s, integral, and modified GAF curves
    Comparison of BRDF curves obtained by introducing Blinn’s, integral, and modified GAF and experimental BRDF data
    Tools

    Get Citation

    Copy Citation Text

    Zhiyong Yang, Zhiwei Zhang, Wei Cai, Gaoxiang Lu. Analysis and Improvement on Integral Geometrical Attenuation Factor of Bidirectional Reflection Distribution Function[J]. Acta Optica Sinica, 2022, 42(10): 1029001

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Scattering

    Received: Oct. 8, 2021

    Accepted: Dec. 6, 2021

    Published Online: May. 10, 2022

    The Author Email: Zhiwei Zhang (1084665868@qq.com)

    DOI:10.3788/AOS202242.1029001

    Topics