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CSS

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JavaScript

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HTML
!

CSS 

              
                canvas
{
  position:fixed;
  top:0px;
  width:100vw;
  height:100vh;
  left:0px
}
body
{
  background-color:black;
}
!

JS 

              
                var scene = new THREE.Scene();
var renderer = new THREE.WebGLRenderer({antialias:true,transparent:false});
renderer.setClearColor(0x000000,0);
renderer.setClearAlpha(0);
document.body.appendChild(renderer.domElement);

var dpr = window.devicePixelRatio|| 1;
renderer.setSize(innerWidth*dpr,innerHeight*dpr);
renderer.domElement.style.width = "100%";
renderer.domElement.style.height = "100%";
var persp = new THREE.PerspectiveCamera(30, innerWidth/innerHeight, .1, 1000);

persp.position.z = -10;
persp.position.x = -10;
persp.lookAt(new THREE.Vector3());


var light = new THREE.PointLight(0xffffff,1,3);
scene.add(light);
light.position.z = -1;

var light = new THREE.PointLight(0xffffff,2,4);
scene.add(light);
light.position.z = 2;
light.position.y = 3;

var gradCanvas = document.createElement('canvas');
var gc = gradCanvas.getContext('2d');
gradCanvas.width = gradCanvas.height = 128;
var grad = gc.createLinearGradient(0,0, 128,0);
grad.addColorStop(0,'black');
grad.addColorStop(1,'black');
grad.addColorStop(.2,'white');
grad.addColorStop(.8,'#80aff0');
gc.fillStyle = grad;
gc.fillRect(0,0,128,128);
grad = gc.createLinearGradient(0,0,0,128);
grad.addColorStop(0, "rgba(255,255,0,0.0)");
grad.addColorStop(1, "black");
gc.fillStyle = grad;
gc.fillRect(0,0,128,128);

var gradTex = new THREE.Texture(gradCanvas);
gradTex.needsUpdate = true;

var cube = new THREE.CubeGeometry(2.9,.025,.3);
var mat = new THREE.MeshPhongMaterial({color:0xffffff,
                                      emissive:0x200000
                                   
                                      });
var gradRay = new THREE.MeshBasicMaterial({
  color:0xffffff,
    blending:THREE.AdditiveBlending,                                           transparent:true,
   map:gradTex,
  depthTest:false,
  side:THREE.DoubleSide,
  opacity:0.08});
var gradGeo = new THREE.PlaneGeometry(2.9, 4);
var windowFrame = new THREE.Object3D();

for(var i =0;i<20;i++ ){
  var slat = new THREE.Mesh(cube,mat);
  slat.position.y = 0.2*i-.9;
  slat.rotation.x = -Math.PI/5;
  var ray = new THREE.Mesh(gradGeo, gradRay);
  slat.add(ray);
	ray.position.z = -2;
  ray.rotation.x = Math.PI/2;
  windowFrame.add(slat);
}

addWhiteBacking();
addInnerFrame();


function makeDust() {
  var dustMat = new THREE.ShaderMaterial({
    uniforms:{},
    fragmentShader:""+
    "																																							\n"+
    "		varying vec3 vPos;																												\n"+
    "																																							\n"+
    "		void main() {																															\n"+
    "		 																				\n"+
    "		 float zy = max(0.,-vPos.y+vPos.z/1.4+3.);							\n"+
    "		 if(zy>4.) { zy =9.;}																				\n"+
    "		 float grey  = pow(abs(sin((zy)*7.)),1.);					\n"+
    "		 																				\n"+
    "		 																				\n"+
   // "		grey = 1.; 																				\n"+
    "		grey *= pow(1.+vPos.z/4.,0.7);															\n"+
    "		 gl_FragColor = vec4(1.,1.,1.,grey/2.);																										\n"+
    "		}																																					\n"+
    "																																							\n"+
    "																																							\n",
    vertexShader:""+
    "																																							\n"+
    "																																							\n"+
    "		varying vec3 vPos;																												\n"+
    "																																							\n"+
    "																																							\n"+
    "		void main() {																															\n"+
    "			gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.);	\n"+
    "		gl_PointSize = 2./gl_Position.z;																														\n"+
    "		vPos = position;																													\n"+
    "																																							\n"+
    "																																							\n"+
    "		}																																					\n"
    ,
    blending:THREE.AdditiveBlending,
    transparent:true,
    depthtest:false
    
    
    
    });var dustGeo = window.dustGeo =  new THREE.Geometry();
  for(var i =0;i<30000;i++) {
    var v3 = new THREE.Vector3((Math.random()-0.5)*3, 
                               (Math.random()-0.5)*7-1,
                               Math.random()*4-4 );
    dustGeo.vertices.push(v3);
   
    
  }
	var dust = new THREE.PointCloud(dustGeo, dustMat);
  scene.add(dust);
}
makeDust();



function addInnerFrame() {
  var cGrad = document.createElement('canvas');
  var cG = cGrad.getContext('2d');
  cGrad.width = cGrad.height = 128;
  
  var grad = cG.createLinearGradient(0,0, 0,128);
  grad.addColorStop(0,"black");
  grad.addColorStop(0.75,"#a00000");
  grad.addColorStop(1,"white");
  cG.fillStyle = grad;
  cG.fillRect(0,0,cGrad.width, cGrad.height);
  var tex = new THREE.Texture(cGrad);
  tex.needsUpdate = true;
  
  
  var texMat = new THREE.MeshBasicMaterial({map:tex});
  
  
  var plane = new THREE.PlaneGeometry(4,0.2);
  
  var side = new THREE.Mesh(plane,texMat);
  
  windowFrame.add(side);
  side.rotation.y = Math.PI/2;
  side.rotation.z = -Math.PI/2;
  side.position.y =1;
  side.position.x =-1.5;

  side = new THREE.Mesh(plane,texMat);
  
  windowFrame.add(side);
  side.rotation.y = -Math.PI/2;
  side.rotation.z = Math.PI/2;
  side.position.y =1;
  side.position.x =1.5;

  side = new THREE.Mesh(plane,texMat);
  
  windowFrame.add(side);
  side.rotation.x = -Math.PI/2;
  side.position.y =-1;
	side.scale.x = 0.75;

  
  side = new THREE.Mesh(plane,texMat);
  
  windowFrame.add(side);
  side.rotation.x = Math.PI/2;
  side.rotation.z = Math.PI;
  side.position.y =3;
	side.scale.x = 0.75;

  
  var blockerMat = new THREE.MeshBasicMaterial({color:0});
  var blockerSide = new THREE.CubeGeometry(3,4,0.3);

  side = new THREE.Mesh(blockerSide, blockerMat);
  windowFrame.add(side);
  side.position.set(-3.01, 1,0);
  side = new THREE.Mesh(blockerSide, blockerMat);
  windowFrame.add(side);
  side.position.set(3.01, 1,0);
  side = new THREE.Mesh(blockerSide, blockerMat);
  windowFrame.add(side);
  side.position.set(0, 5.01,0);
  side.scale.x = 2;
  side = new THREE.Mesh(blockerSide, blockerMat);
  windowFrame.add(side);
  side.position.set(0, -3.01,0);
  side.scale.x = 2;
}

function addWhiteBacking() {
  var p = new THREE.PlaneGeometry(3,4);
  
  var white = new THREE.MeshBasicMaterial({color:0xffffff});
  var pM= new THREE.Mesh(p, white);
  windowFrame.add(pM);
  pM.rotation.x = Math.PI;
  pM.position.z = 0.1;
  pM.position.y = 1;
  
}


var mouseMoved = false;
document.body.addEventListener('mousemove',function(evt) {
  persp.position.x = 20* (evt.clientX/innerWidth-0.5);
  persp.position.z = -7;
mouseMoved = true;
    persp.position.y = 20* (evt.clientY/innerHeight-0.5);
	persp.lookAt(new THREE.Vector3(-1));

  
});
scene.add(windowFrame);

function render() {
  if(!mouseMoved) {
    
    persp.position.x = 6;
  persp.position.z = -7;
    persp.position.y = 2* Math.sin(new Date().getTime()*0.0005)-2.5;
    
  }
  	persp.lookAt(new THREE.Vector3(-1));
  var vI;
  console.log(window.dustGeo.vertices.length);
for(var i =0;i< window.dustGeo.vertices.length;i++)  {
  vI = window.dustGeo.vertices[i];
  vI.y+=0.003*(Math.random()-0.25);
  vI.x+=0.003*(Math.random()-0.5);
  vI.z+=0.003*(Math.random()-0.5);
  if(vI.y>3) vI.y-=6;
}
  window.dustGeo.verticesNeedUpdate = true;
  
  	renderer.render(scene,persp);
	requestAnimationFrame(render);
}

render();
!
999px

Console