skyBox: new Cesium.SkyBox({
sources: {
positiveX: 'static/image/skyBox/posx.jpg',
negativeX: 'static/image/skyBox/negx.jpg',
positiveY: 'static/image/skyBox/negy.jpg',
negativeY: 'static/image/skyBox/posy.jpg',
positiveZ: 'static/image/skyBox/posz.jpg',
negativeZ: 'static/image/skyBox/negz.jpg'
}
}),