You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
999 B
55 lines
999 B
/**
|
|
* @author alteredq / http://alteredqualia.com/
|
|
*
|
|
* Sepia tone shader
|
|
* based on glfx.js sepia shader
|
|
* https://github.com/evanw/glfx.js
|
|
*/
|
|
|
|
THREE.SepiaShader = {
|
|
|
|
uniforms: {
|
|
|
|
"tDiffuse": { value: null },
|
|
"amount": { value: 1.0 }
|
|
|
|
},
|
|
|
|
vertexShader: [
|
|
|
|
"varying vec2 vUv;",
|
|
|
|
"void main() {",
|
|
|
|
"vUv = uv;",
|
|
"gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
|
|
|
|
"}"
|
|
|
|
].join( "\n" ),
|
|
|
|
fragmentShader: [
|
|
|
|
"uniform float amount;",
|
|
|
|
"uniform sampler2D tDiffuse;",
|
|
|
|
"varying vec2 vUv;",
|
|
|
|
"void main() {",
|
|
|
|
"vec4 color = texture2D( tDiffuse, vUv );",
|
|
"vec3 c = color.rgb;",
|
|
|
|
"color.r = dot( c, vec3( 1.0 - 0.607 * amount, 0.769 * amount, 0.189 * amount ) );",
|
|
"color.g = dot( c, vec3( 0.349 * amount, 1.0 - 0.314 * amount, 0.168 * amount ) );",
|
|
"color.b = dot( c, vec3( 0.272 * amount, 0.534 * amount, 1.0 - 0.869 * amount ) );",
|
|
|
|
"gl_FragColor = vec4( min( vec3( 1.0 ), color.rgb ), color.a );",
|
|
|
|
"}"
|
|
|
|
].join( "\n" )
|
|
|
|
};
|