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A magic screensaver for Mac OSX, a lot of fun. Built-in more than 30 screensavers.

Objective-C 100.00%

iscreensaver's People

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15651738660 nieyu bdidier kuluso libaibuzai wanyaxing cryptarc livv fisher158163 nibnait

iscreensaver's Issues

Can you support wallpaper?

The software is perfect, can you support wallpaper?
Thank you!

打不开“iScreenSaver(1.04).saver”。您应该将它移到废纸篓。

all local?

Does all the web content live on my computer?

Or is some content pulled from the internets?

[iScreenSaver] TheWriggleSphere

<!DOCTYPE html><html lang="en"><style>*{margin:0;padding:0}html{height:100%}body{height:100%;overflow:hidden}canvas{position:absolute}</style><head><meta charset="UTF-8"><title>The wriggle sphere</title></head><body><div id="canvas"></div><script src='http://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.min.js'></script><script>THREE.TrackballControls=function(object,domElement){var _this=this;var STATE={NONE:-1,ROTATE:0,ZOOM:1,PAN:2,TOUCH_ROTATE:3,TOUCH_ZOOM_PAN:4};this.object=object;this.domElement=(domElement!==undefined)?domElement:document;this.enabled=true;this.screen={left:0,top:0,width:0,height:0};this.rotateSpeed=1.0;this.zoomSpeed=1.2;this.panSpeed=0.3;this.noRotate=false;this.noZoom=false;this.noPan=false;this.staticMoving=false;this.dynamicDampingFactor=0.2;this.minDistance=0;this.maxDistance=Infinity;this.keys=[65,83,68];this.target=new THREE.Vector3();var EPS=0.000001;var lastPosition=new THREE.Vector3();var _state=STATE.NONE,_prevState=STATE.NONE,_eye=new THREE.Vector3(),_movePrev=new THREE.Vector2(),_moveCurr=new THREE.Vector2(),_lastAxis=new THREE.Vector3(),_lastAngle=0,_zoomStart=new THREE.Vector2(),_zoomEnd=new THREE.Vector2(),_touchZoomDistanceStart=0,_touchZoomDistanceEnd=0,_panStart=new THREE.Vector2(),_panEnd=new THREE.Vector2();this.target0=this.target.clone();this.position0=this.object.position.clone();this.up0=this.object.up.clone();var changeEvent={type:'change'};var startEvent={type:'start'};var endEvent={type:'end'};this.handleResize=function(){if(this.domElement===document){this.screen.left=0;this.screen.top=0;this.screen.width=window.innerWidth;this.screen.height=window.innerHeight}else{var box=this.domElement.getBoundingClientRect();var d=this.domElement.ownerDocument.documentElement;this.screen.left=box.left+window.pageXOffset-d.clientLeft;this.screen.top=box.top+window.pageYOffset-d.clientTop;this.screen.width=box.width;this.screen.height=box.height}};this.handleEvent=function(event){if(typeof this[event.type]=='function'){this[event.type](event)}};var getMouseOnScreen=(function(){var vector=new THREE.Vector2();return function(pageX,pageY){vector.set((pageX-_this.screen.left)/_this.screen.width,(pageY-_this.screen.top)/_this.screen.height);return vector}}());var getMouseOnCircle=(function(){var vector=new THREE.Vector2();return function(pageX,pageY){vector.set(((pageX-_this.screen.width*0.5-_this.screen.left)/(_this.screen.width*0.5)),((_this.screen.height+2*(_this.screen.top-pageY))/_this.screen.width));return vector}}());this.rotateCamera=(function(){var axis=new THREE.Vector3(),quaternion=new THREE.Quaternion(),eyeDirection=new THREE.Vector3(),objectUpDirection=new THREE.Vector3(),objectSidewaysDirection=new THREE.Vector3(),moveDirection=new THREE.Vector3(),angle;return function(){moveDirection.set(_moveCurr.x-_movePrev.x,_moveCurr.y-_movePrev.y,0);angle=moveDirection.length();if(angle){_eye.copy(_this.object.position).sub(_this.target);eyeDirection.copy(_eye).normalize();objectUpDirection.copy(_this.object.up).normalize();objectSidewaysDirection.crossVectors(objectUpDirection,eyeDirection).normalize();objectUpDirection.setLength(_moveCurr.y-_movePrev.y);objectSidewaysDirection.setLength(_moveCurr.x-_movePrev.x);moveDirection.copy(objectUpDirection.add(objectSidewaysDirection));axis.crossVectors(moveDirection,_eye).normalize();angle*=_this.rotateSpeed;quaternion.setFromAxisAngle(axis,angle);_eye.applyQuaternion(quaternion);_this.object.up.applyQuaternion(quaternion);_lastAxis.copy(axis);_lastAngle=angle}else if(!_this.staticMoving&&_lastAngle){_lastAngle*=Math.sqrt(1.0-_this.dynamicDampingFactor);_eye.copy(_this.object.position).sub(_this.target);quaternion.setFromAxisAngle(_lastAxis,_lastAngle);_eye.applyQuaternion(quaternion);_this.object.up.applyQuaternion(quaternion)}_movePrev.copy(_moveCurr)}}());this.zoomCamera=function(){var factor;if(_state===STATE.TOUCH_ZOOM_PAN){factor=_touchZoomDistanceStart/_touchZoomDistanceEnd;_touchZoomDistanceStart=_touchZoomDistanceEnd;_eye.multiplyScalar(factor)}else{factor=1.0+(_zoomEnd.y-_zoomStart.y)*_this.zoomSpeed;if(factor!==1.0&&factor>0.0){_eye.multiplyScalar(factor);if(_this.staticMoving){_zoomStart.copy(_zoomEnd)}else{_zoomStart.y+=(_zoomEnd.y-_zoomStart.y)*this.dynamicDampingFactor}}}};this.panCamera=(function(){var mouseChange=new THREE.Vector2(),objectUp=new THREE.Vector3(),pan=new THREE.Vector3();return function(){mouseChange.copy(_panEnd).sub(_panStart);if(mouseChange.lengthSq()){mouseChange.multiplyScalar(_eye.length()*_this.panSpeed);pan.copy(_eye).cross(_this.object.up).setLength(mouseChange.x);pan.add(objectUp.copy(_this.object.up).setLength(mouseChange.y));_this.object.position.add(pan);_this.target.add(pan);if(_this.staticMoving){_panStart.copy(_panEnd)}else{_panStart.add(mouseChange.subVectors(_panEnd,_panStart).multiplyScalar(_this.dynamicDampingFactor))}}}}());this.checkDistances=function(){if(!_this.noZoom||!_this.noPan){if(_eye.lengthSq()>_this.maxDistance*_this.maxDistance){_this.object.position.addVectors(_this.target,_eye.setLength(_this.maxDistance))}if(_eye.lengthSq()<_this.minDistance*_this.minDistance){_this.object.position.addVectors(_this.target,_eye.setLength(_this.minDistance))}}};this.update=function(){_eye.subVectors(_this.object.position,_this.target);if(!_this.noRotate){_this.rotateCamera()}if(!_this.noZoom){_this.zoomCamera()}if(!_this.noPan){_this.panCamera()}_this.object.position.addVectors(_this.target,_eye);_this.checkDistances();_this.object.lookAt(_this.target);if(lastPosition.distanceToSquared(_this.object.position)>EPS){_this.dispatchEvent(changeEvent);lastPosition.copy(_this.object.position)}};this.reset=function(){_state=STATE.NONE;_prevState=STATE.NONE;_this.target.copy(_this.target0);_this.object.position.copy(_this.position0);_this.object.up.copy(_this.up0);_eye.subVectors(_this.object.position,_this.target);_this.object.lookAt(_this.target);_this.dispatchEvent(changeEvent);lastPosition.copy(_this.object.position)};function keydown(event){if(_this.enabled===false)return;window.removeEventListener('keydown',keydown);_prevState=_state;if(_state!==STATE.NONE){return}else if(event.keyCode===_this.keys[STATE.ROTATE]&&!_this.noRotate){_state=STATE.ROTATE}else if(event.keyCode===_this.keys[STATE.ZOOM]&&!_this.noZoom){_state=STATE.ZOOM}else if(event.keyCode===_this.keys[STATE.PAN]&&!_this.noPan){_state=STATE.PAN}}function keyup(event){if(_this.enabled===false)return;_state=_prevState;window.addEventListener('keydown',keydown,false)}function mousedown(event){if(_this.enabled===false)return;event.preventDefault();event.stopPropagation();if(_state===STATE.NONE){_state=event.button}if(_state===STATE.ROTATE&&!_this.noRotate){_moveCurr.copy(getMouseOnCircle(event.pageX,event.pageY));_movePrev.copy(_moveCurr)}else if(_state===STATE.ZOOM&&!_this.noZoom){_zoomStart.copy(getMouseOnScreen(event.pageX,event.pageY));_zoomEnd.copy(_zoomStart)}else if(_state===STATE.PAN&&!_this.noPan){_panStart.copy(getMouseOnScreen(event.pageX,event.pageY));_panEnd.copy(_panStart)}document.addEventListener('mousemove',mousemove,false);document.addEventListener('mouseup',mouseup,false);_this.dispatchEvent(startEvent)}function mousemove(event){if(_this.enabled===false)return;event.preventDefault();event.stopPropagation();if(_state===STATE.ROTATE&&!_this.noRotate){_movePrev.copy(_moveCurr);_moveCurr.copy(getMouseOnCircle(event.pageX,event.pageY))}else if(_state===STATE.ZOOM&&!_this.noZoom){_zoomEnd.copy(getMouseOnScreen(event.pageX,event.pageY))}else if(_state===STATE.PAN&&!_this.noPan){_panEnd.copy(getMouseOnScreen(event.pageX,event.pageY))}}function mouseup(event){if(_this.enabled===false)return;event.preventDefault();event.stopPropagation();_state=STATE.NONE;document.removeEventListener('mousemove',mousemove);document.removeEventListener('mouseup',mouseup);_this.dispatchEvent(endEvent)}function mousewheel(event){if(_this.enabled===false)return;event.preventDefault();event.stopPropagation();var delta=0;if(event.wheelDelta){delta=event.wheelDelta/40}else if(event.detail){delta=-event.detail/3}_zoomStart.y+=delta*0.01;_this.dispatchEvent(startEvent);_this.dispatchEvent(endEvent)}function touchstart(event){if(_this.enabled===false)return;switch(event.touches.length){case 1:_state=STATE.TOUCH_ROTATE;_moveCurr.copy(getMouseOnCircle(event.touches[0].pageX,event.touches[0].pageY));_movePrev.copy(_moveCurr);break;case 2:_state=STATE.TOUCH_ZOOM_PAN;var dx=event.touches[0].pageX-event.touches[1].pageX;var dy=event.touches[0].pageY-event.touches[1].pageY;_touchZoomDistanceEnd=_touchZoomDistanceStart=Math.sqrt(dx*dx+dy*dy);var x=(event.touches[0].pageX+event.touches[1].pageX)/2;var y=(event.touches[0].pageY+event.touches[1].pageY)/2;_panStart.copy(getMouseOnScreen(x,y));_panEnd.copy(_panStart);break;default:_state=STATE.NONE}_this.dispatchEvent(startEvent)}function touchmove(event){if(_this.enabled===false)return;event.preventDefault();event.stopPropagation();switch(event.touches.length){case 1:_movePrev.copy(_moveCurr);_moveCurr.copy(getMouseOnCircle(event.touches[0].pageX,event.touches[0].pageY));break;case 2:var dx=event.touches[0].pageX-event.touches[1].pageX;var dy=event.touches[0].pageY-event.touches[1].pageY;_touchZoomDistanceEnd=Math.sqrt(dx*dx+dy*dy);var x=(event.touches[0].pageX+event.touches[1].pageX)/2;var y=(event.touches[0].pageY+event.touches[1].pageY)/2;_panEnd.copy(getMouseOnScreen(x,y));break;default:_state=STATE.NONE}}function touchend(event){if(_this.enabled===false)return;switch(event.touches.length){case 1:_movePrev.copy(_moveCurr);_moveCurr.copy(getMouseOnCircle(event.touches[0].pageX,event.touches[0].pageY));break;case 2:_touchZoomDistanceStart=_touchZoomDistanceEnd=0;var x=(event.touches[0].pageX+event.touches[1].pageX)/2;var y=(event.touches[0].pageY+event.touches[1].pageY)/2;_panEnd.copy(getMouseOnScreen(x,y));_panStart.copy(_panEnd);break}_state=STATE.NONE;_this.dispatchEvent(endEvent)}this.domElement.addEventListener('contextmenu',function(event){event.preventDefault()},false);this.domElement.addEventListener('mousedown',mousedown,false);this.domElement.addEventListener('mousewheel',mousewheel,false);this.domElement.addEventListener('DOMMouseScroll',mousewheel,false);this.domElement.addEventListener('touchstart',touchstart,false);this.domElement.addEventListener('touchend',touchend,false);this.domElement.addEventListener('touchmove',touchmove,false);window.addEventListener('keydown',keydown,false);window.addEventListener('keyup',keyup,false);this.handleResize();this.update()};THREE.TrackballControls.prototype=Object.create(THREE.EventDispatcher.prototype);THREE.TrackballControls.prototype.constructor=THREE.TrackballControls;(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){var Get=require('./get');var get=new Get();var debounce=require('./debounce');var Camera=require('./camera');var PointLight=require('./pointLight');var HemiLight=require('./hemiLight');var Mesh=require('./mesh');var bodyWidth=document.body.clientWidth;var bodyHeight=document.body.clientHeight;var fps=60;var frameTime;var lastTimeRender=+new Date();var canvas;var renderer;var scene;var camera;var light;var globe;var ball;var initThree=function(){canvas=document.getElementById('canvas');renderer=new THREE.WebGLRenderer({antialias:true});if(!renderer){alert('Three.jsの初期化に失敗しました。')}renderer.setSize(bodyWidth,bodyHeight);canvas.appendChild(renderer.domElement);renderer.setClearColor(0xeeeeee,1.0);scene=new THREE.Scene()};var init=function(){var ballGeometry=new THREE.SphereGeometry(360,20,20);var ballMaterial=new THREE.MeshLambertMaterial({color:0xffffff,shading:THREE.FlatShading});initThree();camera=new Camera();camera.init(get.radian(45),get.radian(0),bodyWidth,bodyHeight);light=new HemiLight();light.init(scene,get.radian(0),get.radian(120),1000,0x66ff99,0x3366aa,1);ball=new Mesh();ball.init(scene,ballGeometry,ballMaterial);renderloop();debounce(window,'resize',function(event){resizeRenderer()})};var render=function(){renderer.clear();ball.updateVertices();renderer.render(scene,camera.obj)};var renderloop=function(){var now=+new Date();requestAnimationFrame(renderloop);if(now-lastTimeRender>1000/fps){render();lastTimeRender=+new Date()}camera.trackball.update()};var resizeRenderer=function(){bodyWidth=document.body.clientWidth;bodyHeight=document.body.clientHeight;renderer.setSize(bodyWidth,bodyHeight);camera.init(get.radian(45),get.radian(0),bodyWidth,bodyHeight)};init()},{"./camera":2,"./debounce":3,"./get":4,"./hemiLight":5,"./mesh":6,"./pointLight":7}],2:[function(require,module,exports){var Get=require('./get');var get=new Get();var exports=function(){var Camera=function(){this.width=0;this.height=0;this.rad1=0;this.rad2=0;this.x=0;this.y=0;this.z=0;this.r=0;this.obj;this.trackball};Camera.prototype.init=function(rad1,rad2,width,height){this.width=width;this.height=height;this.r=1200;this.rad1=rad1;this.rad2=rad2;this.obj=new THREE.PerspectiveCamera(50,this.width/this.height,1,10000);this.setPosition(this.rad1,this.rad2,this.r);this.initTrackBall()};Camera.prototype.setPosition=function(rad1,rad2){var points=get.pointSphere(rad1,rad2,this.r);this.obj.position.set(points[0],points[1],points[2]);this.obj.up.set(0,1,0);this.obj.lookAt({x:0,y:0,z:0})};Camera.prototype.initTrackBall=function(){this.trackball=new THREE.TrackballControls(this.obj,this.canvas);this.trackball.screen.width=this.width;this.trackball.screen.height=this.height;this.trackball.noRotate=false;this.trackball.rotateSpeed=3;this.trackball.noZoom=true;this.trackball.zoomSpeed=1;this.trackball.noPan=false;this.trackball.maxDistance=3000;this.trackball.minDistance=500};return Camera};module.exports=exports()},{"./get":4}],3:[function(require,module,exports){module.exports=function(object,eventType,callback){var timer;object.addEventListener(eventType,function(event){clearTimeout(timer);timer=setTimeout(function(){callback(event)},500)},false)}},{}],4:[function(require,module,exports){var exports=function(){var Get=function(){};Get.prototype.randomInt=function(min,max){return Math.floor(Math.random()*(max-min))+min};Get.prototype.degree=function(radian){return radian/Math.PI*180};Get.prototype.radian=function(degrees){return degrees*Math.PI/180};Get.prototype.pointSphere=function(rad1,rad2,r){var x=Math.cos(rad1)*Math.cos(rad2)*r;var z=Math.cos(rad1)*Math.sin(rad2)*r;var y=Math.sin(rad1)*r;return[x,y,z]};return Get};module.exports=exports()},{}],5:[function(require,module,exports){var Get=require('./get');var get=new Get();var exports=function(){var HemiLight=function(){this.rad1=0;this.rad2=0;this.x=0;this.y=0;this.z=0;this.r=0;this.obj};HemiLight.prototype.init=function(scene,rad1,rad2,r,hex1,hex2,intensity){this.r=r;this.obj=new THREE.HemisphereLight(hex1,hex2,intensity);this.setPosition(rad1,rad2);scene.add(this.obj)};HemiLight.prototype.setPosition=function(rad1,rad2){var points=get.pointSphere(rad1,rad2,this.r);this.obj.position.set(points[0],points[1],points[2])};return HemiLight};module.exports=exports()},{"./get":4}],6:[function(require,module,exports){var Get=require('./get');var get=new Get();var exports=function(){var Mesh=function(){this.r=0;this.x=0;this.y=0;this.z=0;this.geometry;this.material;this.mesh;this.vertexArr=[];this.vertexDeg=[];this.vertexWaveCoe=0};Mesh.prototype.init=function(scene,geometry,material){this.geometry=geometry;this.material=material;this.mesh=new THREE.Mesh(this.geometry,this.material);this.r=this.geometry.parameters.radius;this.vertexWaveCoe=this.r/30;this.geometry.mergeVertices();this.updateVerticesInt();this.setPosition();this.mesh.rotation.set(get.radian(45),0,0);scene.add(this.mesh)};Mesh.prototype.setPosition=function(){this.mesh.position.set(this.x,this.y,this.z)};Mesh.prototype.updateVerticesInt=function(){var vertices=this.mesh.geometry.vertices;for(var i=0;i<vertices.length;i++){var r=this.r;this.vertexArr[i]=r;this.vertexDeg[i]=get.randomInt(0,360);vertices[i].normalize().multiplyScalar(r)}this.mesh.geometry.computeVertexNormals();this.mesh.geometry.computeFaceNormals();this.mesh.geometry.verticesNeedUpdate=true;this.mesh.geometry.elementsNeedUpdate=true;this.mesh.geometry.normalsNeedUpdate=true};Mesh.prototype.updateVertices=function(){var vertices=this.mesh.geometry.vertices;for(var i=0;i<this.vertexArr.length;i++){var r;this.vertexDeg[i]+=8;r=this.vertexArr[i]+Math.sin(get.radian(this.vertexDeg[i]))*this.vertexWaveCoe;vertices[i].normalize().multiplyScalar(r)}this.mesh.geometry.computeVertexNormals();this.mesh.geometry.computeFaceNormals();this.mesh.geometry.verticesNeedUpdate=true;this.mesh.geometry.elementsNeedUpdate=true;this.mesh.geometry.normalsNeedUpdate=true};return Mesh};module.exports=exports()},{"./get":4}],7:[function(require,module,exports){var Get=require('./get');var get=new Get();var exports=function(){var PointLight=function(){this.rad1=0;this.rad2=0;this.x=0;this.y=0;this.z=0;this.r=0;this.obj};PointLight.prototype.init=function(scene,rad1,rad2,r,hex,intensity,distance){this.r=r;this.obj=new THREE.PointLight(hex,intensity,distance);this.setPosition(rad1,rad2);scene.add(this.obj)};PointLight.prototype.setPosition=function(rad1,rad2){var points=get.pointSphere(rad1,rad2,this.r);this.obj.position.set(points[0],points[1],points[2])};return PointLight};module.exports=exports()},{"./get":4}]},{},[1]);</script></body></html>

Mojave打开屏幕屏幕保护程序，什么都不显示，推荐也加载不出来

作者您好，请问Mojave为什么打不开？
Mojave打开屏幕屏幕保护程序，什么都不显示，推荐也加载不出来

感谢作者，我自己写了一个屏保，希望分享一下。

上班时间显示离下班有多少时间，下班后显示加班了多少时间......👋

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>倒计时</title>
  <style type="text/css">
    html{
      background: #000;
    }
    body {
      margin: 0;
      color: #FFF;
      font-family: PingFang SC;
    }
    .body {
      position: absolute;
      left: 0;
      top: 0;
      right: 0;
      bottom: 0;
      display: flex;
      justify-content: center;
      flex-direction: column;
    }
    .times{
      text-align: center;
      line-height: 1;
      margin: 0;
      font-weight: 100;
      height: 200px;
      padding: 0 10%;
      display: flex;
      justify-content: space-around;
      padding-bottom: 2.5vw;
    }
    .times > div {
      flex: 1;
    }
    .time {
      font-size: 13vw;
    }
    .gray-color {
      font-size: 2.5vw;
      color: gray;
    }
    p {
      margin: 0;
      text-align: center;
    }
  </style>
</head>
<body>
  <div class="body">
    <div class="times">
      <div>
        <p class="time HOURS">0</p>
        <p class="gray-color">HOURS</p>
      </div>
      <div>
        <span class="time MINUTES">0</span>
        <p class="gray-color">MINUTES</p>
      </div>
      <div>
        <span class="time SECONDS">0</span>
        <p class="gray-color">SECONDS</p>
      </div>
    </div>
  </div>
  <script>
    function setTime() {
      var start = new Date();
      var end = new Date();
      end.setHours(18);
      end.setMinutes(30);
      end.setSeconds(0);
      if(start > end) {
        var bak = start;
        start = end;
        end = bak;
      }
      var seconds = parseInt((end.getTime() - start.getTime()) / 1000);
      var minutes = Math.floor(seconds / 60);
      var hours = Math.floor(minutes / 60);
      minutes = minutes % 60;
      seconds = seconds % 60;
      document.body.querySelector('.HOURS').innerHTML = (hours>9?'':'0') + hours;
      document.body.querySelector('.MINUTES').innerHTML = (minutes>9?'':'0') + minutes;
      document.body.querySelector('.SECONDS').innerHTML = (seconds>9?'':'0') + seconds;
    }
    setTime();
    setInterval(function(){
      setTime();
    }, 1000);
  </script>
</body>
</html>

[iScreenSaver] Honeycomb

<!DOCTYPE](url) html><html ><head><meta charset="UTF-8"><meta name="google" value="notranslate"><meta name="robots" content="noindex"><title>code1</title><style>canvas { position: absolute; top: 0; left: 0; }.codrops-demos { font-size: 0.8em; text-align:center; position:absolute; z-index:99; width:96%;}.codrops-demos a { display: inline-block; margin: 0.35em 0.1em; padding: 0.5em 1.2em; outline: none; text-decoration: none; text-transform: uppercase; letter-spacing: 1px; font-weight: 700; border-radius: 2px; font-size: 110%; border: 2px solid transparent; color:#fff;}.codrops-demos a:hover,.codrops-demos a.current-demo { border-color: #383a3c;}</style></head><body><canvas id="c"></canvas><script type="text/javascript">var w = c.width = window.innerWidth,h = c.height = window.innerHeight,ctx = c.getContext('2d'),opts = { len: 20, count: 50, baseTime: 10, addedTime: 10, dieChance: .05, spawnChance: 1, sparkChance: .1, sparkDist: 10, sparkSize: 2, color: 'hsl(hue,100%,light%)', baseLight: 50, addedLight: 10, shadowToTimePropMult: 6, baseLightInputMultiplier: .01, addedLightInputMultiplier: .02, cx: w / 2, cy: h / 2, repaintAlpha: .04, hueChange: .1},tick = 0,lines = [],dieX = w / 2 / opts.len,dieY = h / 2 / opts.len,baseRad = Math.PI * 2 / 6;ctx.fillStyle = 'black';ctx.fillRect(0, 0, w, h);function loop() { window.requestAnimationFrame(loop); ++tick; ctx.globalCompositeOperation = 'source-over'; ctx.shadowBlur = 0; ctx.fillStyle = 'rgba(0,0,0,alp)'.replace('alp', opts.repaintAlpha); ctx.fillRect(0, 0, w, h); ctx.globalCompositeOperation = 'lighter'; if (lines.length< opts.count && Math.random()< opts.spawnChance) lines.push(new Line); lines.map(function(line) { line.step() })}function Line() { this.reset()}Line.prototype.reset = function() { this.x = 0; this.y = 0; this.addedX = 0; this.addedY = 0; this.rad = 0; this.lightInputMultiplier = opts.baseLightInputMultiplier + opts.addedLightInputMultiplier * Math.random(); this.color = opts.color.replace('hue', tick * opts.hueChange); this.cumulativeTime = 0; this.beginPhase()}Line.prototype.beginPhase = function() { this.x += this.addedX; this.y += this.addedY; this.time = 0; this.targetTime = (opts.baseTime + opts.addedTime * Math.random()) | 0; this.rad += baseRad * (Math.random()< .5 ? 1 : -1); this.addedX = Math.cos(this.rad); this.addedY = Math.sin(this.rad); if (Math.random()< opts.dieChance || this.x > dieX || this.x< -dieX || this.y > dieY || this.y< -dieY) this.reset()}Line.prototype.step = function() {++this.time; ++this.cumulativeTime; if (this.time >= this.targetTime) this.beginPhase(); var prop = this.time / this.targetTime, wave = Math.sin(prop * Math.PI / 2), x = this.addedX * wave, y = this.addedY * wave; ctx.shadowBlur = prop * opts.shadowToTimePropMult; ctx.fillStyle = ctx.shadowColor = this.color.replace('light', opts.baseLight + opts.addedLight * Math.sin(this.cumulativeTime * this.lightInputMultiplier)); ctx.fillRect(opts.cx + (this.x + x) * opts.len, opts.cy + (this.y + y) * opts.len, 2, 2); if (Math.random()< opts.sparkChance) ctx.fillRect(opts.cx + (this.x + x) * opts.len + Math.random() * opts.sparkDist * (Math.random()< .5 ? 1 : -1) - opts.sparkSize / 2, opts.cy + (this.y + y) * opts.len + Math.random() * opts.sparkDist * (Math.random()< .5 ? 1 : -1) - opts.sparkSize / 2, opts.sparkSize, opts.sparkSize)}loop();window.addEventListener('resize',function() { w = c.width = window.innerWidth; h = c.height = window.innerHeight; ctx.fillStyle = 'black'; ctx.fillRect(0, 0, w, h); opts.cx = w / 2; opts.cy = h / 2; dieX = w / 2 / opts.len; dieY = h / 2 / opts.len});</script></body></html>

[iScreenSaver] TheMilkyWay

<!doctype html><html><head><meta charset="utf-8"><title>code5</title><style>body { background: #060e1b; overflow: hidden;}canvas { //opacity: 0.5;}.codrops-demos { font-size: 0.8em; text-align:center; position:absolute; z-index:99; width:96%;}.codrops-demos a { display: inline-block; margin: 0.35em 0.1em; padding: 0.5em 1.2em; outline: none; text-decoration: none; text-transform: uppercase; letter-spacing: 1px; font-weight: 700; border-radius: 2px; font-size: 110%; border: 2px solid transparent; color:#fff;}.codrops-demos a:hover,.codrops-demos a.current-demo { border-color: #383a3c;}</style></head><body><canvas id="canvas"></canvas><script>"use strict";var canvas = document.getElementById('canvas'), ctx = canvas.getContext('2d'), w = canvas.width = window.innerWidth, h = canvas.height = window.innerHeight, hue = 217, stars = [], count = 0, maxStars = 1400;// Thanks @jackrugile for the performance tip! http://codepen.io/jackrugile/pen/BjBGoM// Cache gradientvar canvas2 = document.createElement('canvas'), ctx2 = canvas2.getContext('2d'); canvas2.width = 100; canvas2.height = 100;var half = canvas2.width/2, gradient2 = ctx2.createRadialGradient(half, half, 0, half, half, half); gradient2.addColorStop(0.025, '#fff'); gradient2.addColorStop(0.1, 'hsl(' + hue + ', 61%, 33%)'); gradient2.addColorStop(0.25, 'hsl(' + hue + ', 64%, 6%)'); gradient2.addColorStop(1, 'transparent'); ctx2.fillStyle = gradient2; ctx2.beginPath(); ctx2.arc(half, half, half, 0, Math.PI * 2); ctx2.fill();// End cachefunction random(min, max) { if (arguments.length< 2) { max = min; min = 0; } if (min > max) { var hold = max; max = min; min = hold; } return Math.floor(Math.random() * (max - min + 1)) + min;}var Star = function() { this.orbitRadius = random(w / 2 - 50); this.radius = random(100, this.orbitRadius) / 10; this.orbitX = w / 2; this.orbitY = h / 2; this.timePassed = random(0, maxStars); this.speed = random(this.orbitRadius) / 900000; this.alpha = random(2, 10) / 10; count++; stars[count] = this;}Star.prototype.draw = function() { var x = Math.sin(this.timePassed + 1) * this.orbitRadius + this.orbitX, y = Math.cos(this.timePassed) * this.orbitRadius/2 + this.orbitY, twinkle = random(10); if (twinkle === 1 && this.alpha > 0) { this.alpha -= 0.05; } else if (twinkle === 2 && this.alpha< 1) { this.alpha += 0.05; } ctx.globalAlpha = this.alpha; ctx.drawImage(canvas2, x - this.radius / 2, y - this.radius / 2, this.radius, this.radius); this.timePassed += this.speed;}for (var i = 0; i< maxStars; i++) { new Star();}function animation() { ctx.globalCompositeOperation = 'source-over'; ctx.globalAlpha = 0.8; ctx.fillStyle = 'hsla(' + hue + ', 64%, 6%, 1)'; ctx.fillRect(0, 0, w, h) ctx.globalCompositeOperation = 'lighter'; for (var i = 1, l = stars.length; i< l; i++) { stars[i].draw(); }; window.requestAnimationFrame(animation);}animation();</script></body></html>

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Mac OS: 10.13.4

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