// 文档 https://github.com/hooke007/mpv_PlayKit/wiki/4_GLSL


//!DESC [colorlevel_shrink_luma]
//!HOOK LUMA
//!BIND HOOKED

const float min = 16.0 / 255.0;
const float max = (235.0 - 16.0) / 255.0;

vec4 hook()
{
    return (HOOKED_texOff(0) * max) + min;
}

