playcanvas
Version:
PlayCanvas WebGL game engine
23 lines (21 loc) • 768 B
JavaScript
var composeGradingPS = `
uniform brightnessContrastSaturation: vec3f;
uniform tint: vec3f;
fn colorGradingHDR(color: vec3f, brt: f32, sat: f32, con: f32) -> vec3f {
var colorOut = color * uniform.tint;
colorOut = colorOut * brt;
let grey = dot(colorOut, vec3f(0.3, 0.59, 0.11));
let normalizedGrey = grey / max(1.0, max(colorOut.r, max(colorOut.g, colorOut.b)));
colorOut = mix(vec3f(normalizedGrey), colorOut, sat);
return mix(vec3f(0.5), colorOut, con);
}
fn applyGrading(color: vec3f) -> vec3f {
return colorGradingHDR(color,
uniform.brightnessContrastSaturation.x,
uniform.brightnessContrastSaturation.z,
uniform.brightnessContrastSaturation.y);
}
`;
export { composeGradingPS as default };