   var skyBox = new Hilo3d.Mesh({
                geometry: new Hilo3d.BoxGeometry(),
                material: new Hilo3d.BasicMaterial({
                    lightType: 'NONE',
                    side: Hilo3d.constants.BACK,
                    diffuse: specularEnvMap
                })
            }).addTo(stage);
            skyBox.setScale(20);
        });
    }

    function initLight(){
        ambientLight.amount = 0.03;

        var pointLight = new Hilo3d.PointLight({
            color:new Hilo3d.