如何使用three.js的扩展库(如OBJLoader、SceneUtils...)在6号角？

<script src="path/to/three.min.js"></script>
<script src="path/to/OBJLoader.js"></script>
<script src="path/to/SceneUtils.js"></script>

<div id="canvas"></div>

var container = document.getElementById('canvas');
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(75, container.clientWidth / container.clientHeight, 0.1, 1000);
var renderer = new THREE.WebGLRenderer();
renderer.setSize(container.clientWidth, container.clientHeight);
container.appendChild(renderer.domElement);

var loader = new THREE.OBJLoader();
loader.load('path/to/model.obj', function (object) {
    scene.add(object);
});

function animate() {
    requestAnimationFrame(animate);
    // 更新场景和相机
    // ...
    renderer.render(scene, camera);
}
animate();