three.js 多面几何体进行多面贴图

var materials = [];

for (var i = 0; i < 6; ++i) {
materials.push(new THREE.MeshBasicMaterial({
map: THREE.ImageUtils.loadTexture('../img/' + i + '.png',//图片的路径
{}, function() {
renderer.render(scene, camera);
}),
overdraw: true
}));
}
var cube = new THREE.Mesh(new THREE.CubeGeometry(5, 5, 5),
new THREE.MeshFaceMaterial(materials));
scene.add(cube);for (var i = 0; i < 6; ++