>我正在尝试将轨道控件添加到我的场景中，但没有成功。下面的代码一直给我一个错误Uncaught TypeError: THREE.OrbitControls is not a constructor.我已经尝试了我在网上遇到的不同解决方案，但是错误仍然存在。我做错了什么？
伪代码
- 添加动态观察控件
- 能够在场景中使用动态观察控制
提前谢谢你。
代码笔
.HTML
<html>
<head>
<title>My first three.js app</title>
<style>
body { margin: 0; }
canvas { width: 100%; height: 100% }
</style>
</head>
<body>
<script src="js/three.js"></script>
<script src="https://82mou.github.io/threejs/js/OrbitControls.js"></script>
</body>
</html>
.JS
var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
var scene = new THREE.Scene();
// var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );
// var renderer = new THREE.WebGLRenderer();
// renderer.setSize( window.innerWidth, window.innerHeight );
// document.body.appendChild( renderer.domElement );
// CAMERA
var camera = new THREE.PerspectiveCamera(75, 320 / 240, 1, 1000);
camera.position.set(250, 200, 250);
camera.lookAt(0, 0, 0);
// add controls for the camera
var controls = new THREE.OrbitControls(camera);
var geometry = new THREE.PlaneGeometry(100, 50);
var material = new THREE.MeshBasicMaterial( { color: 0xFFFFFF } );
var plane = new THREE.Mesh( geometry, material );
scene.add( plane );
camera.position.z = 200;
var animate = function () {
requestAnimationFrame( animate );
controls.update();
// plane.rotation.x += 0.01;
// plane.rotation.y += 0.01;
renderer.render( scene, camera );
};
animate();
您的代码笔中存在问题。通过 ES6 导入导入OrbitControls时，无需使用THREE命名空间。因此，当执行此类操作时：
import { OrbitControls } from "https://unpkg.com/three@0.112/examples/jsm/controls/OrbitControls.js";
您必须创建如下OrbitControls：
controls = new OrbitControls( camera, renderer.domElement );
现场示例：https://jsfiddle.net/68kzagry/1/