目前如何在three.js场景中获取摄像头的旋转？

var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.set(0, 0, 5);

<script src="https://cdn.jsdelivr.net/npm/three/examples/js/controls/OrbitControls.js"></script>

var controls = new THREE.OrbitControls(camera, renderer.domElement);

function animate() {
    requestAnimationFrame(animate);
    controls.update();
    renderer.render(scene, camera);
}
animate();

var rotation = camera.rotation.toVector3();
console.log(rotation);