如何在Three.js中获得物体相对于摄像头的位置来绘制轨迹？

var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.set(0, 0, 10);

var object = new THREE.Mesh(new THREE.BoxGeometry(1, 1, 1), new THREE.MeshBasicMaterial({ color: 0x00ff00 }));
scene.add(object);

var raycaster = new THREE.Raycaster();
var mouse = new THREE.Vector2();

function onMouseMove(event) {
    // 计算鼠标在屏幕上的位置
    mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
    mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;

    // 通过摄像头和鼠标位置创建射线
    raycaster.setFromCamera(mouse, camera);

    // 获取射线与物体的交点
    var intersects = raycaster.intersectObject(object);

    if (intersects.length > 0) {
        // 获取交点的位置
        var position = intersects[0].point;

        // 绘制轨迹或执行其他操作
        drawTrack(position);
    }
}

window.addEventListener('mousemove', onMouseMove, false);

function drawTrack(position) {
    // 在指定位置绘制轨迹
    // ...
}