ats = new Stats();
       stats.domElement.style.position = 'absolute';
       stats.domElement.style.bottom = '0px';
       stats.domElement.style.left='180px'
       stats.domElement.style.zIndex = 100;
       container.appendChild( stats.domElement );

       // Floor
       var floorGeometry=new THREE.PlaneGeometry(10000,10000, 32 );
       var floorMaterial=new THREE.MeshBasicMaterial({color: 0x666666, transparent: true, opacity: 0.5});
       var floor=new THREE.Mesh( floorGeometry, floorMaterial );
 