LiftGammaGain - 图1

    1. // Lift Gamma Gain
    2. // LiftGammaGain.osl, by Zap Andersson
    3. // Modified: 2019-11-22
    4. // Modified: 2021-03-04 by Saul Espinosa, added Metadata for Redshift 3D
    5. // Copyright 2019 Autodesk Inc, All rights reserved. This file is licensed under Apache 2.0 license
    6. //    https://github.com/ADN-DevTech/3dsMax-OSL-Shaders/blob/master/LICENSE.txt
    9. shader LiftGammaGain
    10. [[ string help = "Simple Lift / Gamma / Gain color modifier",
    11.    // string category = "Color Correction",
    12.    string label = "Lift/Gamma/Gain" ]]
    13. (
    14.     color Input = 0.0,
    15.     float Lift = 0.0 [[ float min = 0, float max = 1]],
    16.     float Gamma = 1.0 [[ float min = 0, float max = 10 ]],
    17.     float Gain = 1.0 [[ float min = 0, float max = 10 ]],
    18.     output color Col = 0.0
    19. )
    20. {
    21.     Col = Lift + pow(Input, Gamma) * Gain;
    22. }