playcanvas
Version:
PlayCanvas WebGL game engine
21 lines (19 loc) • 659 B
JavaScript
var tonemappingNeutralPS = `
uniform float exposure;
vec3 toneMap(vec3 color) {
color *= exposure;
float startCompression = 0.8 - 0.04;
float desaturation = 0.15;
float x = min(color.r, min(color.g, color.b));
float offset = x < 0.08 ? x - 6.25 * x * x : 0.04;
color -= offset;
float peak = max(color.r, max(color.g, color.b));
if (peak < startCompression) return color;
float d = 1. - startCompression;
float newPeak = 1. - d * d / (peak + d - startCompression);
color *= newPeak / peak;
float g = 1. - 1. / (desaturation * (peak - newPeak) + 1.);
return mix(color, newPeak * vec3(1, 1, 1), g);
}
`;
export { tonemappingNeutralPS as default };