mirror of
https://github.com/DanielnetoDotCom/YouPHPTube
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54 lines
969 B
JavaScript
54 lines
969 B
JavaScript
/**
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* Sepia tone shader
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* based on glfx.js sepia shader
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* https://github.com/evanw/glfx.js
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*/
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var SepiaShader = {
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uniforms: {
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'tDiffuse': { value: null },
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'amount': { value: 1.0 }
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},
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vertexShader: [
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'varying vec2 vUv;',
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'void main() {',
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' vUv = uv;',
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' gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',
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'}'
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].join( '\n' ),
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fragmentShader: [
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'uniform float amount;',
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'uniform sampler2D tDiffuse;',
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'varying vec2 vUv;',
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'void main() {',
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' vec4 color = texture2D( tDiffuse, vUv );',
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' vec3 c = color.rgb;',
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' color.r = dot( c, vec3( 1.0 - 0.607 * amount, 0.769 * amount, 0.189 * amount ) );',
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' color.g = dot( c, vec3( 0.349 * amount, 1.0 - 0.314 * amount, 0.168 * amount ) );',
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' color.b = dot( c, vec3( 0.272 * amount, 0.534 * amount, 1.0 - 0.869 * amount ) );',
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' gl_FragColor = vec4( min( vec3( 1.0 ), color.rgb ), color.a );',
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'}'
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].join( '\n' )
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};
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export { SepiaShader };
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