mirror of
https://github.com/wassname/phaser.git
synced 2026-06-27 16:10:15 +08:00
photonstorm
124 lines
3.2 KiB
JavaScript
124 lines
3.2 KiB
JavaScript
PIXI.PulsingInterferenceFilter = 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: '3f', value: { x: width, y: height, z: 0 }},
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iMouse: { type: '3f', value: { x: 0, y: 0, z: 0 }},
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iGlobalTime: { type: '1f', value: 1 },
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iDate: { type: '4fv', value: dates },
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iChannel0: { type: 'sampler2D', value: texture, wrap: 'repeat' }
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};
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// Shader by knatten (https://www.shadertoy.com/view/lssGR8)
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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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"float PI = 3.14159265358979323846264;",
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"vec2 warp(in vec2 xy)",
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"{",
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"float amount = 0.3*pow(sin(iGlobalTime*2.0), 20.0);",
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"return vec2(xy.x + sin(xy.x*10.0)*amount*sin(iGlobalTime),",
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"xy.y + cos(xy.y*10.0)*amount*sin(iGlobalTime));",
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"}",
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"float distance(in vec2 uv, in float x, in float y)",
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"{",
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"return sqrt(pow(abs(uv.x - x), 2.0) + pow(abs(uv.y - y), 2.0));",
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"}",
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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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"uv = warp(uv);",
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"float x_1 = sin(iGlobalTime*1.5);",
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"float y_1 = cos(iGlobalTime);",
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"float x_2 = cos(iGlobalTime);",
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"float y_2 = sin(iGlobalTime);",
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"float dist_1 = distance(uv, x_1, y_1);",
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"float dist_2 = distance(uv, x_2, y_2);",
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"float t = sin(iGlobalTime);//mod(iGlobalTime*100.0, 100.0)/100.0;",
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"float c1 = sin(dist_1*50.0) * sin(dist_2*50.0);",
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"float red = c1*t;",
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"float blue = sin(dist_1*50.0) * sin(dist_1*150.0);",
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"float green = c1*(1.0-t);",
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"vec3 color = vec3(red, green, blue);",
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"vec3 flash = vec3(pow(sin(iGlobalTime*2.0),20.0));",
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"color += flash;",
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"gl_FragColor = vec4(color, 1.0);",
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"}"];
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}
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PIXI.PulsingInterferenceFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
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PIXI.PulsingInterferenceFilter.prototype.constructor = PIXI.PulsingInterferenceFilter;
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Object.defineProperty(PIXI.PulsingInterferenceFilter.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/tex01.jpg');
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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.PulsingInterferenceFilter(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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filter.uniforms.iMouse.value.x = game.input.x;
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filter.uniforms.iMouse.value.y = game.input.y;
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}
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function render() {
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}
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