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https://github.com/DanielnetoDotCom/YouPHPTube
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48 lines
631 B
JavaScript
48 lines
631 B
JavaScript
/**
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* Luminosity
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* http://en.wikipedia.org/wiki/Luminosity
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*/
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THREE.LuminosityShader = {
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uniforms: {
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'tDiffuse': { value: null }
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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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'#include <common>',
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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 texel = texture2D( tDiffuse, vUv );',
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' float l = linearToRelativeLuminance( texel.rgb );',
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' gl_FragColor = vec4( l, l, l, texel.w );',
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'}'
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].join( '\n' )
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};
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