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.
52 lines
965 B
52 lines
965 B
( function () {
|
|
|
|
/**
|
|
* Sepia tone shader
|
|
* based on glfx.js sepia shader
|
|
* https://github.com/evanw/glfx.js
|
|
*/
|
|
|
|
const SepiaShader = {
|
|
uniforms: {
|
|
'tDiffuse': {
|
|
value: null
|
|
},
|
|
'amount': {
|
|
value: 1.0
|
|
}
|
|
},
|
|
vertexShader: /* glsl */`
|
|
|
|
varying vec2 vUv;
|
|
|
|
void main() {
|
|
|
|
vUv = uv;
|
|
gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
|
|
|
|
}`,
|
|
fragmentShader: /* glsl */`
|
|
|
|
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 );
|
|
|
|
}`
|
|
};
|
|
|
|
THREE.SepiaShader = SepiaShader;
|
|
|
|
} )();
|
|
|