playcanvas/build/playcanvas/src/scene/shader-lib/glsl/chunks/common/frag/gamma.js

PlayCanvas WebGL game engine

var gammaPS = `
#include "decodePS"
#if (GAMMA == SRGB)
	float gammaCorrectInput(float color) {
		return decodeGamma(color);
	}
	vec3 gammaCorrectInput(vec3 color) {
		return decodeGamma(color);
	}
	vec4 gammaCorrectInput(vec4 color) {
		return vec4(decodeGamma(color.xyz), color.w);
	}
	vec3 gammaCorrectOutput(vec3 color) {
		return pow(color + 0.0000001, vec3(1.0 / 2.2));
	}
#else
	float gammaCorrectInput(float color) {
		return color;
	}
	vec3 gammaCorrectInput(vec3 color) {
		return color;
	}
	vec4 gammaCorrectInput(vec4 color) {
		return color;
	}
	vec3 gammaCorrectOutput(vec3 color) {
		return color;
	}
#endif
`;

export { gammaPS as default };