Wavelength - 图1

    1. // Wavelength Color Shader
    2. // WaveLength.osl, by Zap Andersson
    3. // Modified: 2019-11-26
    4. // Copyright 2019 Autodesk Inc, All rights reserved. This file is licensed under Apache 2.0 license
    5. //    https://github.com/ADN-DevTech/3dsMax-OSL-Shaders/blob/master/LICENSE.txt
    7. shader WaveLength
    8. [[ string help = "Modulates a color between two wavelengths of light",
    9.    string label = "Wavelength Color",
    10.    string category = "Utility"
    11. ]]
    12. (
    13.     float Input = u,
    14.     float Min   = 400.0,
    15.     float Max   = 700.0,
    16.     output color Col = 0.0,
    17. )
    18. {
    19.     Col = wavelength_color(mix(Min, Max, Input));
    20. }