mirror of
https://github.com/wassname/phaser.git
synced 2026-06-27 16:10:15 +08:00
photonstorm
131 lines
3.4 KiB
JavaScript
131 lines
3.4 KiB
JavaScript
PIXI.BinarySerpentsFilter = 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 Trisomie21 (https://www.shadertoy.com/view/MslGRH)
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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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"// With tweaks by PauloFalcao",
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"float Texture3D(vec3 n, float res){",
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"n = floor(n*res+.5);",
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"return fract(sin((n.x+n.y*1e5+n.z*1e7)*1e-4)*1e5);",
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"}",
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"float map( vec3 p ){",
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"p.x+=sin(p.z*4.0+iGlobalTime*4.0)*0.1*cos(iGlobalTime*0.1);",
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"p = mod(p,vec3(1.0, 1.0, 1.0))-0.5;",
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"return length(p.xy)-.1;",
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"}",
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"void main( void )",
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"{",
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"vec2 pos = (gl_FragCoord.xy*2.0 - iResolution.xy) / iResolution.y;",
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"vec3 camPos = vec3(cos(iGlobalTime*0.3), sin(iGlobalTime*0.3), 1.5);",
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"vec3 camTarget = vec3(0.0, 0.0, 0.0);",
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"vec3 camDir = normalize(camTarget-camPos);",
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"vec3 camUp = normalize(vec3(0.0, 1.0, 0.0));",
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"vec3 camSide = cross(camDir, camUp);",
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"float focus = 2.0;",
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"vec3 rayDir = normalize(camSide*pos.x + camUp*pos.y + camDir*focus);",
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"vec3 ray = camPos;",
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"float d = 0.0, total_d = 0.0;",
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"const int MAX_MARCH = 100;",
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"const float MAX_DISTANCE = 5.0;",
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"float c = 1.0;",
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"for(int i=0; i<MAX_MARCH; ++i) {",
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"d = map(ray);",
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"total_d += d;",
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"ray += rayDir * d;",
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"if(abs(d)<0.001) { break; }",
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"if(total_d>MAX_DISTANCE) { c = 0.; total_d=MAX_DISTANCE; break; }",
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"}",
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"float fog = 5.0;",
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"vec4 result = vec4( vec3(c*.4 , c*.6, c) * (fog - total_d) / fog, 1.0 );",
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"ray.z -= 5.+iGlobalTime*.5;",
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"float r = Texture3D(ray, 33.);",
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"gl_FragColor = result*(step(r,.3)+r*.2+.1);",
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"}"];
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}
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PIXI.BinarySerpentsFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
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PIXI.BinarySerpentsFilter.prototype.constructor = PIXI.BinarySerpentsFilter;
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Object.defineProperty(PIXI.BinarySerpentsFilter.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.BinarySerpentsFilter(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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