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mobile-query-three-vendor-three-r53.js-shaders-SepiaShader.js / js



  

author: alteredq / alteredqualia.com/ Sepia tone shader based on glfx.js sepia shader github.com/evanw/glfx.js

  
  
  THREE.SepiaShader = {
  
          uniforms: {
  
                  "tDiffuse": { type: "t", value: null },
                  "amount":   { type: "f", value: 1.0 }
  
          },
  
          vertexShader: [
  
                  "varying vec2 vUv;",
  
                  "void main() {",
  
                          "vUv = uv;",
                          "gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
  
                  "}"
  
          ].join("\n"),
  
          fragmentShader: [
  
                  "uniform float amount;",
  
                  "uniform sampler2D tDiffuse;",
  
                  "varying vec2 vUv;",
  
                  "void main() {",
  
                          "vec4 color = texture2D( tDiffuse, vUv );",
                          "vec3 c = color.rgb;",
  
                          "color.r = dot( c, vec3( 1.0 - 0.607 * amount, 0.769 * amount, 0.189 * amount ) );",
                          "color.g = dot( c, vec3( 0.349 * amount, 1.0 - 0.314 * amount, 0.168 * amount ) );",
                          "color.b = dot( c, vec3( 0.272 * amount, 0.534 * amount, 1.0 - 0.869 * amount ) );",
  
                          "gl_FragColor = vec4( min( vec3( 1.0 ), color.rgb ), color.a );",
  
                  "}"
  
          ].join("\n")
  
  };
  


(C) Æliens 04/09/2009

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