/usr/share/javascript/three/examples/js/shaders/LuminosityShader.js is in libjs-three 80+dfsg2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | /**
* @author alteredq / http://alteredqualia.com/
*
* Luminosity
* http://en.wikipedia.org/wiki/Luminosity
*/
THREE.LuminosityShader = {
uniforms: {
"tDiffuse": { value: null }
},
vertexShader: [
"varying vec2 vUv;",
"void main() {",
"vUv = uv;",
"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
"}"
].join( "\n" ),
fragmentShader: [
"uniform sampler2D tDiffuse;",
"varying vec2 vUv;",
"void main() {",
"vec4 texel = texture2D( tDiffuse, vUv );",
"vec3 luma = vec3( 0.299, 0.587, 0.114 );",
"float v = dot( texel.xyz, luma );",
"gl_FragColor = vec4( v, v, v, texel.w );",
"}"
].join( "\n" )
};
|