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https://github.com/Doodle3D/Doodle3D-Slicer.git
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51 lines
697 B
JavaScript
51 lines
697 B
JavaScript
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/**
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* @author alteredq / http://alteredqualia.com/
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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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THREE.LuminosityShader = {
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uniforms: {
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"tDiffuse": { type: "t", 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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"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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"vec3 luma = vec3( 0.299, 0.587, 0.114 );",
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"float v = dot( texel.xyz, luma );",
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"gl_FragColor = vec4( v, v, v, texel.w );",
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"}"
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].join("\n")
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};
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