three-stdlib/shaders/TechnicolorShader.js

stand-alone library of threejs examples

const TechnicolorShader = {
  uniforms: {
    tDiffuse: { value: null }
  },
  vertexShader: (
    /* glsl */
    `
    varying vec2 vUv;

    void main() {

    	vUv = uv;
    	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );

    }
  `
  ),
  fragmentShader: (
    /* glsl */
    `
    uniform sampler2D tDiffuse;
    varying vec2 vUv;

    void main() {

    	vec4 tex = texture2D( tDiffuse, vec2( vUv.x, vUv.y ) );
    	vec4 newTex = vec4(tex.r, (tex.g + tex.b) * .5, (tex.g + tex.b) * .5, 1.0);

    	gl_FragColor = newTex;

    }
  `
  )
};
export {
  TechnicolorShader
};
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