three-stdlib/shaders/PixelShader.js

stand-alone library of threejs examples

const PixelShader = {
  uniforms: {
    tDiffuse: { value: null },
    resolution: { value: null },
    pixelSize: { value: 1 }
  },
  vertexShader: (
    /* glsl */
    `
    varying highp vec2 vUv;

    void main() {

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

    }
  `
  ),
  fragmentShader: (
    /* glsl */
    `
    uniform sampler2D tDiffuse;
    uniform float pixelSize;
    uniform vec2 resolution;

    varying highp vec2 vUv;

    void main(){

      vec2 dxy = pixelSize / resolution;
      vec2 coord = dxy * floor( vUv / dxy );
      gl_FragColor = texture2D(tDiffuse, coord);

    }
  `
  )
};
export {
  PixelShader
};
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