three-stdlib/shaders/ColorCorrectionShader.js

stand-alone library of threejs examples

import { Vector3 } from "three";
const ColorCorrectionShader = {
  uniforms: {
    tDiffuse: { value: null },
    powRGB: { value: new Vector3(2, 2, 2) },
    mulRGB: { value: new Vector3(1, 1, 1) },
    addRGB: { value: new Vector3(0, 0, 0) }
  },
  vertexShader: [
    "varying vec2 vUv;",
    "void main() {",
    "	vUv = uv;",
    "	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
    "}"
  ].join("\n"),
  fragmentShader: [
    "uniform sampler2D tDiffuse;",
    "uniform vec3 powRGB;",
    "uniform vec3 mulRGB;",
    "uniform vec3 addRGB;",
    "varying vec2 vUv;",
    "void main() {",
    "	gl_FragColor = texture2D( tDiffuse, vUv );",
    "	gl_FragColor.rgb = mulRGB * pow( ( gl_FragColor.rgb + addRGB ), powRGB );",
    "}"
  ].join("\n")
};
export {
  ColorCorrectionShader
};
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