gpu_shader_material_bright_contrast.glsl « material « shaders « gpu « blender « source - git.blender.org/blender.git - Unnamed repository; edit this file 'description' to name the repository.

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path: root/source/blender/gpu/shaders/material/gpu_shader_material_bright_contrast.glsl

blob: a5a10833065b1bdcc9e68124960722e0b804f96e (plain)

void brightness_contrast(vec4 col, float brightness, float contrast, out vec4 outcol)
{
  float a = 1.0 + contrast;
  float b = brightness - contrast * 0.5;

  outcol.r = max(a * col.r + b, 0.0);
  outcol.g = max(a * col.g + b, 0.0);
  outcol.b = max(a * col.b + b, 0.0);
  outcol.a = col.a;
}