如何在three.js中更改增强现实摄像头？

var video = document.createElement('video');
video.autoplay = true;
video.width = 640;
video.height = 480;

var texture = new THREE.VideoTexture(video);

var material = new THREE.MeshBasicMaterial({ map: texture });
var cameraMesh = new THREE.Mesh(new THREE.PlaneGeometry(2, 2), material);

scene.add(cameraMesh);

function animate() {
    requestAnimationFrame(animate);
    if (video.readyState === video.HAVE_ENOUGH_DATA) {
        texture.needsUpdate = true;
    }
    // 其他渲染逻辑...
    renderer.render(scene, camera);
}
animate();