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46 lines
645 B
46 lines
645 B
( function () {
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/**
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* Luminosity
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* http://en.wikipedia.org/wiki/Luminosity
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*/
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const LuminosityShader = {
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uniforms: {
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'tDiffuse': {
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value: null
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}
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},
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vertexShader: /* glsl */`
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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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fragmentShader: /* glsl */`
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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 = luminance( texel.rgb );
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gl_FragColor = vec4( l, l, l, texel.w );
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}`
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};
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THREE.LuminosityShader = LuminosityShader;
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} )();
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