Add external bokeh effect
This commit is contained in:
Greg Shuflin
parent
7cc413103c
commit
115191c3af
214
src/bokeh/app.js
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214
src/bokeh/app.js
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////////////////////////// PARTICLE ENGINE ////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////////////////
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var ParticleEngine = (function() {
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'use strict';
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function ParticleEngine(canvas_id) {
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// enforces new
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if (!(this instanceof ParticleEngine)) {
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return new ParticleEngine(args);
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}
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var _ParticleEngine = this;
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this.canvas_id = canvas_id;
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this.stage = new createjs.Stage(canvas_id);
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this.totalWidth = this.canvasWidth = document.getElementById(canvas_id).width = document.getElementById(canvas_id).offsetWidth;
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this.totalHeight = this.canvasHeight = document.getElementById(canvas_id).height = document.getElementById(canvas_id).offsetHeight;
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this.compositeStyle = "lighter";
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this.particleSettings = [{id:"small", num:300, fromX:0, toX:this.totalWidth, ballwidth:3, alphamax:0.4, areaHeight:.5, color:"#0cdbf3", fill:false},
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{id:"medium", num:100, fromX:0, toX:this.totalWidth, ballwidth:8, alphamax:0.3, areaHeight:1, color:"#6fd2f3", fill:true},
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{id:"large", num:10, fromX:0, toX:this.totalWidth, ballwidth:30, alphamax:0.2, areaHeight:1, color:"#93e9f3", fill:true}];
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this.particleArray = [];
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this.lights = [{ellipseWidth:400, ellipseHeight:100, alpha:0.6, offsetX:0, offsetY:0, color:"#6ac6e8"},
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{ellipseWidth:350, ellipseHeight:250, alpha:0.3, offsetX:-50, offsetY:0, color:"#54d5e8"},
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{ellipseWidth:100, ellipseHeight:80, alpha:0.2, offsetX:80, offsetY:-50, color:"#2ae8d8"}];
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this.stage.compositeOperation = _ParticleEngine.compositeStyle;
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function drawBgLight()
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{
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var light;
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var bounds;
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var blurFilter;
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for (var i = 0, len = _ParticleEngine.lights.length; i < len; i++) {
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light = new createjs.Shape();
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light.graphics.beginFill(_ParticleEngine.lights[i].color).drawEllipse(0, 0, _ParticleEngine.lights[i].ellipseWidth, _ParticleEngine.lights[i].ellipseHeight);
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light.regX = _ParticleEngine.lights[i].ellipseWidth/2;
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light.regY = _ParticleEngine.lights[i].ellipseHeight/2;
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light.y = light.initY = _ParticleEngine.totalHeight/2 + _ParticleEngine.lights[i].offsetY;
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light.x = light.initX =_ParticleEngine.totalWidth/2 + _ParticleEngine.lights[i].offsetX;
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blurFilter = new createjs.BlurFilter(_ParticleEngine.lights[i].ellipseWidth, _ParticleEngine.lights[i].ellipseHeight, 1);
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bounds = blurFilter.getBounds();
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light.filters = [blurFilter];
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light.cache(bounds.x-_ParticleEngine.lights[i].ellipseWidth/2, bounds.y-_ParticleEngine.lights[i].ellipseHeight/2, bounds.width*2, bounds.height*2);
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light.alpha = _ParticleEngine.lights[i].alpha;
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light.compositeOperation = "screen";
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_ParticleEngine.stage.addChildAt(light, 0);
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_ParticleEngine.lights[i].elem = light;
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}
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TweenMax.fromTo(_ParticleEngine.lights[0].elem, 10, {scaleX:1.5, x:_ParticleEngine.lights[0].elem.initX, y:_ParticleEngine.lights[0].elem.initY},{yoyo:true, repeat:-1, ease:Power1.easeInOut, scaleX:2, scaleY:0.7});
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TweenMax.fromTo(_ParticleEngine.lights[1].elem, 12, { x:_ParticleEngine.lights[1].elem.initX, y:_ParticleEngine.lights[1].elem.initY},{delay:5, yoyo:true, repeat:-1, ease:Power1.easeInOut, scaleY:2, scaleX:2, y:_ParticleEngine.totalHeight/2-50, x:_ParticleEngine.totalWidth/2+100});
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TweenMax.fromTo(_ParticleEngine.lights[2].elem, 8, { x:_ParticleEngine.lights[2].elem.initX, y:_ParticleEngine.lights[2].elem.initY},{delay:2, yoyo:true, repeat:-1, ease:Power1.easeInOut, scaleY:1.5, scaleX:1.5, y:_ParticleEngine.totalHeight/2, x:_ParticleEngine.totalWidth/2-200});
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}
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var blurFilter;
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function drawParticles(){
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for (var i = 0, len = _ParticleEngine.particleSettings.length; i < len; i++) {
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var ball = _ParticleEngine.particleSettings[i];
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var circle;
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for (var s = 0; s < ball.num; s++ )
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{
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circle = new createjs.Shape();
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if(ball.fill){
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circle.graphics.beginFill(ball.color).drawCircle(0, 0, ball.ballwidth);
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blurFilter = new createjs.BlurFilter(ball.ballwidth/2, ball.ballwidth/2, 1);
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circle.filters = [blurFilter];
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var bounds = blurFilter.getBounds();
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circle.cache(-50+bounds.x, -50+bounds.y, 100+bounds.width, 100+bounds.height);
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}else{
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circle.graphics.beginStroke(ball.color).setStrokeStyle(1).drawCircle(0, 0, ball.ballwidth);
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}
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circle.alpha = range(0, 0.1);
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circle.alphaMax = ball.alphamax;
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circle.distance = ball.ballwidth * 2;
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circle.ballwidth = ball.ballwidth;
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circle.flag = ball.id;
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_ParticleEngine.applySettings(circle, ball.fromX, ball.toX, ball.areaHeight);
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circle.speed = range(2, 10);
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circle.y = circle.initY;
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circle.x = circle.initX;
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circle.scaleX = circle.scaleY = range(0.3, 1);
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_ParticleEngine.stage.addChild(circle);
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animateBall(circle);
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_ParticleEngine.particleArray.push(circle);
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}
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}
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}
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this.applySettings = function(circle, positionX, totalWidth, areaHeight)
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{
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circle.speed = range(1, 3);
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circle.initY = weightedRange(0, _ParticleEngine.totalHeight , 1, [_ParticleEngine.totalHeight * (2-areaHeight/2)/4, _ParticleEngine.totalHeight*(2+areaHeight/2)/4], 0.8 );
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circle.initX = weightedRange(positionX, totalWidth, 1, [positionX+ ((totalWidth-positionX))/4, positionX+ ((totalWidth-positionX)) * 3/4], 0.6);
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}
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function animateBall(ball)
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{
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var scale = range(0.3, 1);
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var xpos = range(ball.initX - ball.distance, ball.initX + ball.distance);
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var ypos = range(ball.initY - ball.distance, ball.initY + ball.distance);
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var speed = ball.speed;
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TweenMax.to(ball, speed, {scaleX:scale, scaleY:scale, x:xpos, y:ypos, onComplete:animateBall, onCompleteParams:[ball], ease:Cubic.easeInOut});
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TweenMax.to(ball, speed/2, {alpha:range(0.1, ball.alphaMax), onComplete:fadeout, onCompleteParams:[ball, speed]});
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}
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function fadeout(ball, speed)
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{
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ball.speed = range(2, 10);
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TweenMax.to(ball, speed/2, {alpha:0 });
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}
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drawBgLight();
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drawParticles();
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}
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ParticleEngine.prototype.render = function()
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{
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this.stage.update();
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}
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ParticleEngine.prototype.resize = function()
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{
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this.totalWidth = this.canvasWidth = document.getElementById(this.canvas_id).width = document.getElementById(this.canvas_id).offsetWidth;
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this.totalHeight = this.canvasHeight = document.getElementById(this.canvas_id).height = document.getElementById(this.canvas_id).offsetHeight;
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this.render();
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for (var i= 0, length = this.particleArray.length; i < length; i++)
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{
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this.applySettings(this.particleArray[i], 0, this.totalWidth, this.particleArray[i].areaHeight);
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}
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for (var j = 0, len = this.lights.length; j < len; j++) {
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this.lights[j].elem.initY = this.totalHeight/2 + this.lights[j].offsetY;
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this.lights[j].elem.initX =this.totalWidth/2 + this.lights[j].offsetX;
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TweenMax.to(this.lights[j].elem, .5, {x:this.lights[j].elem.initX, y:this.lights[j].elem.initY});
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}
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}
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return ParticleEngine;
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}());
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////////////////////////UTILS//////////////////////////////////////
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//////////////////////////////////////////////////////////////////
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function range(min, max)
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{
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return min + (max - min) * Math.random();
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}
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function round(num, precision)
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{
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var decimal = Math.pow(10, precision);
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return Math.round(decimal* num) / decimal;
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}
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function weightedRange(to, from, decimalPlaces, weightedRange, weightStrength)
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{
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if (typeof from === "undefined" || from === null) {
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from = 0;
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}
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if (typeof decimalPlaces === "undefined" || decimalPlaces === null) {
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decimalPlaces = 0;
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}
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if (typeof weightedRange === "undefined" || weightedRange === null) {
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weightedRange = 0;
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}
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if (typeof weightStrength === "undefined" || weightStrength === null) {
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weightStrength = 0;
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}
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var ret
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if(to == from){return(to);}
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if(weightedRange && Math.random()<=weightStrength){
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ret = round( Math.random()*(weightedRange[1]-weightedRange[0]) + weightedRange[0], decimalPlaces )
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}else{
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ret = round( Math.random()*(to-from)+from, decimalPlaces )
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}
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return(ret);
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}
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///////////////// RUN CODE //////////////////////////
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//////////////////////////////////////////////////////
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var particles
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(function(){
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particles = new ParticleEngine('projector');
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createjs.Ticker.addEventListener("tick", updateCanvas);
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window.addEventListener('resize', resizeCanvas, false);
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function updateCanvas(){
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particles.render();
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}
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function resizeCanvas(){
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particles.resize();
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}
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}());
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15
src/bokeh/index.html
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15
src/bokeh/index.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8"/>
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<title>Bokeh effect</title>
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<link href="style.css" rel="stylesheet" />
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<script src="https://code.createjs.com/easeljs-0.7.1.min.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/1.18.0/TweenMax.min.js"></script>
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<script type="module" src="app.js"></script>
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</head>
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<body>
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<canvas id="projector"></canvas>
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</body>
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</html>
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src/bokeh/style.css
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59
src/bokeh/style.css
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html, body{
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width:100%;
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height:100%;
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padding:0px;
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margin:0px;
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overflow: hidden;
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background: #191d1e; /* Old browsers */
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background: -moz-linear-gradient(0deg, #191d1e 50%, #283139 100%); /* FF3.6+ */
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background: -webkit-gradient(linear, left top, right bottom, color-stop(50%,#191d1e), color-stop(100%,#283139)); /* Chrome,Safari4+ */
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background: -webkit-linear-gradient(0deg, #191d1e 50%,#283139 100%); /* Chrome10+,Safari5.1+ */
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background: -o-linear-gradient(0deg, #191d1e 50%,#283139 100%); /* Opera 11.10+ */
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background: -ms-linear-gradient(0deg, #191d1e 50%,#283139 100%); /* IE10+ */
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background: linear-gradient(0deg, #191d1e 50%,#283139 100%); /* W3C */
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filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#191d1e', endColorstr='#283139',GradientType=1 ); /* IE6-9 fallback on horizontal gradient */
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background-attachment: fixed
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}
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#projector {
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position: absolute;
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top: 0px;
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left: 0px;
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width:100%;
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height:100%;
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}
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.center-div {
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width:580px;
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height:374px;
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position:absolute;
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left:50%;
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top:50%;
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margin-left: -290px;
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margin-top: -187px;
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}
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#preloaderDiv
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{
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position:absolute;
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left:50%;
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top:50%;
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margin-left: -27px;
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margin-top: -27px;
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}
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#logo{
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opacity:0;
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filter: alpha(opacity=0);
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}
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#date2014
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{
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position:absolute;
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padding-left: 210px;
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padding-top:15px;
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opacity:0;
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top:303px;
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left:0;
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filter: alpha(opacity=0);
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}
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@ -13,6 +13,7 @@
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<li> <a href="./orbital-trails-extern/index.html">Orbital Trails (theirs)</a>
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<li> <a href="./orbital-trails-extern/index.html">Orbital Trails (theirs)</a>
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<li> <a href="./orbital-trails-extern-2/index.html">Orbital Trails 2 (theirs)</a>
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<li> <a href="./orbital-trails-extern-2/index.html">Orbital Trails 2 (theirs)</a>
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<li> <a href="./orbital-trails/index.html">Orbital Trails (mine)</a>
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<li> <a href="./orbital-trails/index.html">Orbital Trails (mine)</a>
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<li> <a href="./bokeh/index.html">Bokeh effect (their)</a>
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</ul>
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</ul>
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</body>
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</body>
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</html>
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</html>
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