playcanvas

Version:

PlayCanvas WebGL game engine

20 lines (18 loc) • 521 B

JavaScript

var tonemappingHejlPS = `
uniform exposure: f32;
fn toneMap(color: vec3f) -> vec3f {
	let A: f32 = 0.22;
	let B: f32 = 0.3;
	let C: f32 = 0.1;
	let D: f32 = 0.2;
	let E: f32 = 0.01;
	let F: f32 = 0.3;
	let Scl: f32 = 1.25;
	let adjusted_color = color * uniform.exposure;
	let h = max(vec3f(0.0), adjusted_color - vec3f(0.004));
	return (h * ((Scl * A) * h + Scl * vec3f(C * B)) + Scl * vec3f(D * E)) /
		   (h * (A * h + vec3f(B)) + vec3f(D * F)) -
		   Scl * vec3f(E / F);
}
`;

export { tonemappingHejlPS as default };