/usr/share/javascript/three/examples/js/shaders/TechnicolorShader.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 | /**
* @author flimshaw / http://charliehoey.com
*
* Technicolor Shader
* Simulates the look of the two-strip technicolor process popular in early 20th century films.
* More historical info here: http://www.widescreenmuseum.com/oldcolor/technicolor1.htm
* Demo here: http://charliehoey.com/technicolor_shader/shader_test.html
*/
THREE.TechnicolorShader = {
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 tex = texture2D( tDiffuse, vec2( vUv.x, vUv.y ) );",
"vec4 newTex = vec4(tex.r, (tex.g + tex.b) * .5, (tex.g + tex.b) * .5, 1.0);",
"gl_FragColor = newTex;",
"}"
].join( "\n" )
};
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