// ACES tone map
// see: https://knarkowicz.wordpress.com/2016/01/06/aces-filmic-tone-mapping-curve/
// - ACES Filmic Tone Mapping Curve
//   https://web.archive.org/web/20191027010704/https://knarkowicz.wordpress.com/2016/01/06/aces-filmic-tone-mapping-curve/
vec3 ToneMapping(vec3 color)
{
    const float A = 2.51;
    const float B = 0.03;
    const float C = 2.43;
    const float D = 0.59;
    const float E = 0.14;
    return linearTosRGB(clamp((color * (A * color + B)) / (color * (C * color + D) + E), 0.0, 1.0));
}