mirror of
https://github.com/wassname/phaser.git
synced 2026-06-28 16:20:37 +08:00
photonstorm
118 lines
2.8 KiB
JavaScript
118 lines
2.8 KiB
JavaScript
PIXI.FakeLenseFilter = 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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iMouse: { type: 'f3', value: { x: 0, y: 0, 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, wrap: 'repeat' }
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};
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// Shader by deps (https://www.shadertoy.com/view/MslGDM)
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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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"#define INTENSITY 5.5",
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"#define GLOW 2.0",
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"vec2 blob(vec2 uv, vec2 speed, vec2 size, float time) {",
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"vec2 point = vec2(",
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"(sin(speed.x * time) * size.x),",
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"(cos(speed.y * time) * size.y)",
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");",
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"float d = 1.0 / distance(uv, point);",
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"d = pow(d / INTENSITY, GLOW);",
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"//if( d < 0.1 )",
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"// return uv;",
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"vec2 v2 = normalize(uv - point) * clamp(d,0.1,0.7);",
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"return uv - v2;",
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"}",
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"void main(void)",
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"{",
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"vec2 uv = -1.0 + 2.0 * (gl_FragCoord.xy / iResolution.xy);",
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"float time = iGlobalTime * 0.75;",
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"vec2 read = blob(uv, vec2(3.7, 5.2), vec2(0.2, 0.2), time);",
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"vec4 pixel = texture2D(iChannel0, read);",
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"//if( blob < 0.1 ) pixel = vec4(pixel.r*0.5,pixel.g*0.5,pixel.b*0.5,1);",
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"gl_FragColor = pixel;",
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"}"];
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}
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PIXI.FakeLenseFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
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PIXI.FakeLenseFilter.prototype.constructor = PIXI.FakeLenseFilter;
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Object.defineProperty(PIXI.FakeLenseFilter.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/tex07.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.FakeLenseFilter(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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