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HTML 

              
                <html>
	<head>
	<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
	<meta charset="UTF-8">

		<title>[]</title>
		<style>
			body {
				margin: 0px;
    			overflow: hidden; 
    			background-color: red;
    			font-family: 'Arial';
    		 	cursor: crosshair;
    		}
			
			#help{
				position: absolute;
			    top: 1%;
			    left: 1%;
			    font-size: 30px;
			    color: white;
			}

		</style>
	</head>
	<body>
		<div id="help">[forces] - use arrows</div>
	</body>
</html>
!

CSS
!

JS 

              
                //Created by XORXOR, 2016
var renderer,scene,camera;
var mirrorCamera;
var texture, floortex;
var obj;
var count = 0;

var dirCode = [38,39,40,37];
var keys = []; 
var radius = 2;
var cubesPhy = [];
var cubes=[];
var mirrorCameras=[];
var light;
var cornellBox;

document.addEventListener('keydown', function(e) {
   keys[e.keyCode] = true;
}, false);

document.addEventListener('keyup', function(e) {
   keys[e.keyCode] = false;
}, false);



var textureLoader = new THREE.TextureLoader();
var loader = new THREE.ColladaLoader();

loader.options.convertUpAxis = true;


  textureLoader.load( 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/896175/checkerboard.png', function ( t2 ) {
    floortex = t2;

  loader.load('https://s3-us-west-2.amazonaws.com/s.cdpn.io/896175/cornell.dae', function(collada) {
      var c = collada.scene.getObjectByName( "back_wall", true );
      console.log(collada)
      var colladaObject=c.children[0];
      cornellBox = new THREE.Mesh(colladaObject.geometry,colladaObject.material)
      cornellBox.scale.set(3,3,3);

      initCannon();
      init();
      animate();
    
  });
})

function init(){
  renderer = new THREE.WebGLRenderer({ antialias: true });
  renderer.setClearColor(0xffffff);
  renderer.setSize(window.innerWidth, window.innerHeight)
  renderer.setPixelRatio( window.devicePixelRatio );
  
  // renderer.shadowMap.enabled = true;
  // renderer.shadowMap.type = THREE.PCFSoftShadowMap;
  
  document.body.appendChild(renderer.domElement);

  scene = new THREE.Scene();
  scene.fog = new THREE.FogExp2(0xffffff, .02);

  //env
  scene.add(cornellBox);
  cornellBox.recieveShadow = true;
  cornellBox.castShadow = true;
  var size = 1.5;
  var halfExtents = new CANNON.Vec3(size,size,size);
  var sphereShape = new CANNON.Sphere(size); 
  var sphereGeometry = new THREE.SphereGeometry(halfExtents.x,32,32);
  
  for(var i=0; i<6; i++){
      var x = (Math.random())*10;
      var y = halfExtents.y;
      var z = (Math.random()-0.5)*15;
      
      var mirrorcam = new THREE.CubeCamera( 0.1, 512, 128 );
      mirrorcam.renderTarget.texture.minFilter = THREE.LinearMipMapLinearFilter;
      
      var matt = new THREE.MeshBasicMaterial( { envMap: mirrorcam.renderTarget.texture,fog:true});

      var sphereBody = new CANNON.Body({ mass: .1 });
      sphereBody.addShape(sphereShape);
      // sphereBody.linearDamping =0.9;
      // sphereBody.angularDamping = 0.9;

      var spheremesh = new THREE.Mesh( sphereGeometry, matt );
      world.addBody(sphereBody);
      scene.add(spheremesh);
      // spheremesh.castShadow = true;
      // cornellBox.recieveShadow = true;

      sphereBody.position.set(x,y,z);
      spheremesh.position.set(x,y,z);

      scene.add( mirrorcam );

      cubesPhy.push(sphereBody);
      cubes.push(spheremesh);
      mirrorCameras.push(mirrorcam);
  }

  camera = new THREE.PerspectiveCamera( 90, window.innerWidth/window.innerHeight, .1, 2000 );

  camera.position.set(-10,10,0 )
  camera.rotation.set(0,-Math.PI/2,0)

  mirrorCamera = new THREE.CubeCamera( 0.1, 5000, 128 );
  mirrorCamera.renderTarget.texture.minFilter = THREE.LinearMipMapLinearFilter;

  scene.add( mirrorCamera );
 
  var geometry = new THREE.SphereGeometry( radius, 32,32 );

  obj = THREE.SceneUtils.createMultiMaterialObject( geometry, [

  new THREE.MeshBasicMaterial( { envMap: mirrorCamera.renderTarget.texture,fog:true}),
  new THREE.MeshBasicMaterial( { color: 0xcccccc,opacity:.2, transparent:true, wireframe: true} )
  ]);

  scene.add(obj);
  // obj.castShadow = true;
  // obj.recieveShadow = true;
  obj.position.y = radius;
 
  var ambient = new THREE.AmbientLight( 0xffffff );
  scene.add( ambient );

//Light todo
  // light = new THREE.SpotLight( 0xffffff,.1 );
  // light.angle = Math.PI/2
  // light.target.position.set( 0, 0, 0);
  // light.castShadow = true;
  // light.position.set(7.5,15,0)

  // light.shadow = new THREE.LightShadow(new THREE.PerspectiveCamera( 70, window.innerWidth/window.innerHeight, .1,10 ));
  // light.shadow.bias = 0.01;
  
  // light.shadow.camera.near = 20;
  // light.shadow.camera.far = 50;//camera.far;
  // light.shadow.camera.fov = 40;
  
  // light.shadow.mapSize.width = 1024;
  // light.shadow.mapSize.height = 1024;

  // scene.add( light );
  
  // var spotLightHelper = new THREE.SpotLightHelper( light );
  // scene.add( spotLightHelper );

  mirrorCamera.position.y = obj.position.y;

  //PLANE
  var floorMaterial = new THREE.MeshBasicMaterial( { map: floortex, side:THREE.DoubleSide } );
  var floorGeometry = new THREE.PlaneGeometry(50, 50, 1, 1);
  var floor = new THREE.Mesh(floorGeometry, floorMaterial);
  floor.rotation.set(Math.PI/2,0,0)
  floor.position.x = -25;
  scene.add( floor );

  window.addEventListener('resize', onWindowResize, false);
}
function initCannon(){
    // Setup our world
    world = new CANNON.World();

    world.quatNormalizeSkip = 0; 
    world.quatNormalizeFast = false; 
    var solver = new CANNON.GSSolver();

    solver.iterations = 7;
    solver.tolerance = 0.1;

    world.solver = new CANNON.SplitSolver(solver);
    world.gravity.set(0,-10,0);
    world.broadphase = new CANNON.NaiveBroadphase();

    // Create a sphere
    var mass = 1;
    sphereShape = new CANNON.Sphere(radius);
    sphereBody = new CANNON.Body({ mass: mass });
    sphereBody.addShape(sphereShape);
    sphereBody.position.set(radius,radius,0);
    sphereBody.linearDamping =0.7;
    sphereBody.angularDamping = 0.9;

    world.addBody(sphereBody);

    // Create a plane
    var groundShape = new CANNON.Plane();
    var groundBody = new CANNON.Body({ mass: 0 });
    groundBody.addShape(groundShape);
    groundBody.quaternion.setFromAxisAngle(new CANNON.Vec3(1,0,0),-Math.PI/2);
    world.addBody(groundBody);

  //wall1
    var redwall = new CANNON.Plane();
    var redwallBody = new CANNON.Body({ mass: 0 });
    redwallBody.addShape(redwall);
    redwallBody.quaternion.setFromAxisAngle(new CANNON.Vec3(0,0,1),-Math.PI/2);
    redwallBody.position.set(0,0,-7.5)
    world.addBody(redwallBody);
 //wall2
    var greenwall = new CANNON.Box(new CANNON.Vec3(15,10,1));
    var greenwallBody = new CANNON.Body({ mass: 0 });
    greenwallBody.addShape(greenwall);
    greenwallBody.position.set(0,0,8.5)
    world.addBody(greenwallBody);
 //wall3
    var backwall = new CANNON.Box(new CANNON.Vec3(1,10,15));
    var backwallBody = new CANNON.Body({ mass: 0 });
    backwallBody.addShape(backwall);
    backwallBody.position.set(16,0,0)
    world.addBody(backwallBody);
//wall4
    var frontWall = new CANNON.Box(new CANNON.Vec3(1,10,15));
    var frontWallBody = new CANNON.Body({ mass: 0 });
    frontWallBody.addShape(frontWall);
    frontWallBody.position.set(-1,0,0)
    world.addBody(frontWallBody);
}



function addForce(){
    var f = 30;
    var worldPoint = new CANNON.Vec3(obj.position.x,obj.position.y+radius*2,obj.position.z);
    if ( keys[dirCode[0]] || keys[dirCode[1]] || keys[dirCode[2]] || keys[dirCode[3]]) {
      if (keys[dirCode[0]] && keys[dirCode[1]]) {
        //right top
        var force = new CANNON.Vec3(f,0,f);
      } 
      if (keys[dirCode[1]] && keys[dirCode[2]]) {
        //right down
        var force = new CANNON.Vec3(-f,0,f);
      };
      if (keys[dirCode[2]] && keys[dirCode[3]]) {
        //left down
        var force = new CANNON.Vec3(-f,0,-f);
      };
      if (keys[dirCode[3]] && keys[dirCode[0]]) {
        //left top
        var force = new CANNON.Vec3(f,0,-f);
      };
      if (keys[dirCode[0]]) { //top
        var force = new CANNON.Vec3(f,0,0);
      }
      if (keys[dirCode[1]]) { //right
        var force = new CANNON.Vec3(0,0,f);
      }
      if (keys[dirCode[2]]) { //down
        var force = new CANNON.Vec3(-f,0,0);
      }
      if (keys[dirCode[3]]) { //left
        var force = new CANNON.Vec3(0,0,-f);
      }
    sphereBody.applyForce(force,worldPoint);
  }
}


var dt = 1/60;

function animate() {
    var time = performance.now() * 0.0001;
    addForce();
    world.step(dt);

    obj.visible = false; 
    // pingpong
    mirrorCamera.updateCubeMap( renderer, scene );
    obj.visible = true; 

      var r = scene.position.distanceTo( sphereBody.position );
      var alpha = Math.atan2(sphereBody.position.x,sphereBody.position.z)

      sphereBody.position.y = radius;
      obj.position.copy(sphereBody.position)
     
      obj.quaternion.x = sphereBody.quaternion.x;
      obj.quaternion.y = sphereBody.quaternion.y;
      obj.quaternion.z = sphereBody.quaternion.z;
      obj.quaternion.w = sphereBody.quaternion.w;

    for(var i=0; i<cubes.length; i++){
        cubes[i].visible = false;

        cubes[i].position.copy(cubesPhy[i].position);
        cubes[i].quaternion.copy(cubesPhy[i].quaternion);
        mirrorCameras[i].position.copy(cubes[i].position);

        mirrorCameras[i].updateCubeMap( renderer, scene );
        cubes[i].visible = true;
    }
    
    camera.position.set(obj.position.x-5*radius,obj.position.y+5*radius,0 )
    // camera.position.set(0,0,0 )

    camera.lookAt(obj.position);
    mirrorCamera.position.copy( obj.position)
    requestAnimationFrame(animate);
    renderer.render(scene, camera);


}

function onWindowResize() {
    camera.left = window.innerWidth / - 2;
    camera.right = window.innerWidth / 2;
    camera.top = window.innerHeight / 2;
    camera.bottom = window.innerHeight / - 2;
    camera.updateProjectionMatrix();
    renderer.setSize( window.innerWidth, window.innerHeight );
}
!
999px

Console