https://aspireyouth.com/wp-content/themes/levelup/assets/js/fx/seriously.fx/seriously.tone.js?ver=2.0.11

1/* global define, require */
2(function (root, factory) {
3	'use strict';
4
5	if (typeof define === 'function' && define.amd) {
6		// AMD. Register as an anonymous module.
7		define(['seriously'], factory);
8	} else if (typeof exports === 'object') {
9		// Node/CommonJS
10		factory(require('seriously'));
11	} else {
12		if (!root.Seriously) {
13			root.Seriously = { plugin: function (name, opt) { this[name] = opt; } };
14		}
15		factory(root.Seriously);
16	}
17}(window, function (Seriously) {
18	'use strict';
19
20	Seriously.plugin('tone', {
21		commonShader: true,
22		shader: function (inputs, shaderSource) {
23			shaderSource.fragment = [
24				'precision mediump float;',
25
26				'varying vec2 vTexCoord;',
27
28				'uniform sampler2D source;',
29				'uniform vec4 light;',
30				'uniform vec4 dark;',
31				'uniform float desat;',
32				'uniform float toned;',
33
34				'const vec3 lumcoeff = vec3(0.2125,0.7154,0.0721);',
35
36				'void main(void) {',
37				'	vec4 sourcePixel = texture2D(source, vTexCoord);',
38				'	vec3 sceneColor = light.rgb * sourcePixel.rgb;',
39				'	vec3 gray = vec3(dot(lumcoeff, sceneColor));',
40				'	vec3 muted = mix(sceneColor, gray, desat);',
41				'	vec3 tonedColor = mix(dark.rgb, light.rgb, gray);',
42				'	gl_FragColor = vec4(mix(muted, tonedColor, toned), sourcePixel.a);',
43				'}'
44			].join('\n');
45			return shaderSource;
46		},
47		inPlace: true,
48		inputs: {
49			source: {
50				type: 'image',
51				uniform: 'source'
52			},
53			light: {
54				type: 'color',
55				uniform: 'light',
56				defaultValue: [1, 0.9, 0.5, 1]
57			},
58			dark: {
59				type: 'color',
60				uniform: 'dark',
61				defaultValue: [0.2, 0.05, 0, 1]
62			},
63			toned: {
64				type: 'number',
65				uniform: 'toned',
66				defaultValue: 1,
67				minimumRange: 0,
68				maximumRange: 1
69			},
70			desat: {
71				type: 'number',
72				uniform: 'desat',
73				defaultValue: 0.5,
74				minimumRange: 0,
75				maximumRange: 1
76			}
77		},
78		title: 'Tone',
79		description: ''
80	});
81}));