我正在尝试将 3D 模型上传到我的场景中.js但是我无法做到这一点。 我决定重新创建一个示例进行练习，如下所示，但我仍然收到错误并且它不起作用。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Website first attempt</title>
<script src="js/three.min.js"></script>
<script type = "module"src="js/OrbitControls.js"></script>
<script type = "module" src="js/GLTFLoader.js"></script>
<style>
body { margin: 0;}
canvas { display: block; }
</style>
</head>
<body>
<div class = "wave"></div>
<script type = "module">
var scene, camera, renderer, controls;
var hlight,directionalLight, light, light2, light3, light4;
function init () {
//scene
scene = new THREE.Scene();
scene.background = new THREE.Color( 0xdddddd );
//camera
camera = new THREE.PerspectiveCamera(40,window.innerWidth/window.innerHeight,1,5000);
camera.rotation.y = 45/180*Math.PI;
camera.position.x = 800;
camera.position.y = 100;
camera.position.z = 1000;
//render
renderer = new THREE.WebGLRenderer({antialias:true});
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
//controls
controls = new THREE.OrbitControls( camera, renderer.domElement );
hlight = new THREE.AmbientLight (0x404040,100);
scene.add(hlight);
directionalLight = new THREE.DirectionalLight(0xffffff,100);
directionalLight.position.set(0,1,0);
directionalLight.castShadow = true;
scene.add(directionalLight);
light = new THREE.PointLight(0xc4c4c4,10);
light.position.set(0,300,500);
scene.add(light);
light2 = new THREE.PointLight(0xc4c4c4,10);
light2.position.set(500,100,0);
scene.add(light2);
light3 = new THREE.PointLight(0xc4c4c4,10);
light3.position.set(0,100,-500);
scene.add(light3);
light4 = new THREE.PointLight(0xc4c4c4,10);
light4.position.set(-500,300,500);
scene.add(light4);
var loader = new THREE.GLTFLoader();
loader.load('scene.gltf', function(gltf){
car = gltf.scene.children[0];
car.scale.set(0.5,0.5,0.5);
scene.add(gltf.scene);
animate();
});
}
function onWindowResize () {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
window.addEventListener('resize', onWindowResize, false);
function animate () {
requestAnimationFrame(animate);
controls.update();
render();
}
function render() {
renderer.render( scene, camera );
}
init ();
animate();
</script>
</body>
</html>
带有一个错误：
获取 http://127.0.0.1:5500/build/three.module.js 网：：ERR_ABORTED 404 (未找到( index4.html：78 未捕获的类型错误： THREE.GLTFLoader 不是 构造函数 在初始化时 (索引4.html：78( 在索引4.html：122
我认为更容易坚持示例的代码风格并像这样组织导入：
<script type = "module">
import * as THREE from '../build/three.module.js';
import { OrbitControls } from './jsm/controls/OrbitControls.js';
import { GLTFLoader } from './jsm/loaders/GLTFLoader.js';
var scene, camera, renderer, controls;
意思是three.module.js、OrbitControls和GLTFLoader是ES6模块。在这种情况下，您可以创建没有THREE命名空间的GLTFLoader实例。OrbitControls也一样。
请注意，将 ES6 模块与非 ES6 模块混合使用并不是好方法。如果你这样做，你将不可避免地面临很难追踪的问题。例如，像three.js这样的库会被包含两次。