three-stdlib/shaders/ColorifyShader.js

stand-alone library of threejs examples

import { Color } from "three";
const ColorifyShader = {
  uniforms: {
    tDiffuse: { value: null },
    color: { value: new Color(16777215) }
  },
  vertexShader: [
    "varying vec2 vUv;",
    "void main() {",
    "	vUv = uv;",
    "	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
    "}"
  ].join("\n"),
  fragmentShader: [
    "uniform vec3 color;",
    "uniform sampler2D tDiffuse;",
    "varying vec2 vUv;",
    "void main() {",
    "	vec4 texel = texture2D( tDiffuse, vUv );",
    "	vec3 luma = vec3( 0.299, 0.587, 0.114 );",
    "	float v = dot( texel.xyz, luma );",
    "	gl_FragColor = vec4( v * color, texel.w );",
    "}"
  ].join("\n")
};
export {
  ColorifyShader
};
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