mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-08-23 22:00:42 +02:00
51 lines
697 B
JavaScript
51 lines
697 B
JavaScript
|
/**
|
||
|
* @author alteredq / http://alteredqualia.com/
|
||
|
*
|
||
|
* Luminosity
|
||
|
* http://en.wikipedia.org/wiki/Luminosity
|
||
|
*/
|
||
|
|
||
|
THREE.LuminosityShader = {
|
||
|
|
||
|
uniforms: {
|
||
|
|
||
|
"tDiffuse": { type: "t", 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")
|
||
|
|
||
|
};
|