mirror of
https://github.com/wassname/phaser.git
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photonstorm
119 lines
2.9 KiB
JavaScript
119 lines
2.9 KiB
JavaScript
PIXI.HueRotationFilter = function(width, height, texture)
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{
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PIXI.AbstractFilter.call( this );
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this.passes = [this];
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var d = new Date();
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var dates = [
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d.getFullYear(), // the year (four digits)
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d.getMonth(), // the month (from 0-11)
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d.getDate(), // the day of the month (from 1-31)
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d.getHours()*60.0*60 + d.getMinutes()*60 + d.getSeconds()
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];
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this.uniforms = {
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iResolution: { type: 'f3', value: { x: width, y: height, z: 0 }},
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iGlobalTime: { type: 'f', value: 1 },
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iDate: { type: 'f4', value: dates },
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iChannel0: { type: 'sampler2D', value: texture }
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};
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// Shader by Daniil (https://www.shadertoy.com/view/4sl3DH)
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this.fragmentSrc = [
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"precision mediump float;",
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"uniform vec3 iResolution;",
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"uniform float iGlobalTime;",
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"uniform float iChannelTime[4];",
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"uniform vec4 iMouse;",
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"uniform vec4 iDate;",
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"uniform vec3 iChannelResolution[4];",
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"uniform sampler2D iChannel0;",
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"// add any extra uniforms here",
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"/* Simple hue rotation filter based on article:",
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"http://beesbuzz.biz/code/hsv_color_transforms.php",
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"*/",
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"#define SPEED 10.0",
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"void main(void)",
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"{",
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"vec2 uv = gl_FragCoord.xy / iResolution.xy;",
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"float c = cos(iGlobalTime*SPEED);",
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"float s = sin(iGlobalTime*SPEED);",
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"mat4 hueRotation =",
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"mat4( 0.299, 0.587, 0.114, 0.0,",
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"0.299, 0.587, 0.114, 0.0,",
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"0.299, 0.587, 0.114, 0.0,",
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"0.000, 0.000, 0.000, 1.0) +",
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"mat4( 0.701, -0.587, -0.114, 0.0,",
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"-0.299, 0.413, -0.114, 0.0,",
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"-0.300, -0.588, 0.886, 0.0,",
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"0.000, 0.000, 0.000, 0.0) * c +",
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"mat4( 0.168, 0.330, -0.497, 0.0,",
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"-0.328, 0.035, 0.292, 0.0,",
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"1.250, -1.050, -0.203, 0.0,",
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"0.000, 0.000, 0.000, 0.0) * s;",
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"vec4 pixel = texture2D(iChannel0, uv);",
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"gl_FragColor = pixel * hueRotation;",
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"}"];
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}
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PIXI.HueRotationFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
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PIXI.HueRotationFilter.prototype.constructor = PIXI.HueRotationFilter;
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Object.defineProperty(PIXI.HueRotationFilter.prototype, 'iGlobalTime', {
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get: function() {
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return this.uniforms.iGlobalTime.value;
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},
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set: function(value) {
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this.uniforms.iGlobalTime.value = value;
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}
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});
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var game = new Phaser.Game(800, 600, Phaser.AUTO, 'phaser-example', { preload: preload, create: create, update: update, render: render });
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function preload() {
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// game.load.image('texture', 'wip/64x64.png');
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// game.load.image('texture', 'wip/64x64.png');
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game.load.image('texture', 'assets/pics/ra_einstein.png');
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}
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var filter;
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var sprite;
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function create() {
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sprite = game.add.sprite(0, 0, 'texture');
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// sprite.width = 800;
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// sprite.height = 600;
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filter = new PIXI.HueRotationFilter(sprite.width, sprite.height, sprite.texture);
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sprite.filters = [filter];
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}
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function update() {
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filter.iGlobalTime = game.time.totalElapsedSeconds();
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}
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function render() {
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}
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