是否可以在Three.js中旋转阴影贴图？

Question

我的飞机地面矩形旋转了90度。我有DirectionalLight在这架飞机上投下阴影。看看这个简单的代码示例：

var Three = new function () {
    var scene = new THREE.Scene()

    var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 1000)
    camera.position.set(-380, 252, 420);
    camera.rotation.order = 'YXZ';
    camera.rotation.y = -Math.PI / 4;
    camera.rotation.x = Math.atan(-1 / Math.sqrt(2));

    var renderer = new THREE.WebGLRenderer()
    renderer.setSize(window.innerWidth, window.innerHeight);
    renderer.shadowMapEnabled = true

    var light = new THREE.DirectionalLight(0xffffff, 1)
    light.position.set(150, 100, 100)
    light.castShadow = true
    light.shadowDarkness = 0.3
    light.shadowCameraVisible = true
    light.shadowCameraRight = 50;
    light.shadowCameraLeft = -50;
    light.shadowCameraTop = 50;
    light.shadowCameraBottom = -50;
    scene.add(light);

    var ground = new THREE.Mesh(
        new THREE.PlaneBufferGeometry(436, 624),
        new THREE.MeshLambertMaterial({color: '#808080'})
    );
    ground.rotation.x = -Math.PI / 2;
    ground.receiveShadow = true

    scene.add(ground);

    this.init = function () {
        $('body').append(renderer.domElement);
        Three.render();
    }
    this.render = function () {
        requestAnimationFrame(Three.render);
        renderer.render(scene, camera);
    };
}

$(document).ready(function () {
    Three.init();
});

地面网格旋转90度。我可以旋转光影贴图吗？我想把它与地面的旋转相匹配吗？

小提琴：http://jsfiddle.net/95t964o0/33/