色彩 Color

Categories: Unreal Engine
Tags: Unreal Engine UE材质 UE 材质 技术美术

CheapContrast、CheapContrast_RGB

简易实现的对比度调节

原理：

HLSL 
// 简易实现的对比度调节
// float In        输入
// float Constrast 对比度
Out = Lerp(-Constrast, Constrast + 1.0, In)
Out = Clamp(Out, 0.0, 1.0);

: Cheyne Xie

: https://chaim.eu.org/posts/898e20ab/

: CC BY-NC-SA 4.0

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