JS 库 three.js 和 OrbitControls.js 有问题。 根据本教程完成所有操作:
https://redstapler.co/add-3d-model-to-website-threejs/
但它不起作用，在控制台中它给出了以下错误:
未捕获的类型错误:无法读取未定义的属性“addEventListener”
at new THREE.OrbitControls (OrbitControls.js: 1125)
at init (index.html: 25)
at index.html: 64
<!DOCTYPE html>
<html>
<head>
<meta charset=UTF-8 />
<link rel="stylesheet" type="text/css" href="css/styles.css" />
</head>
<body>
<script src="/js/three.min.js"></script>
<script src="js/GLTFLoader.js"></script>
<script src="js/OrbitControls.js"></script>
<script>
let scene, camera, renderer;
function init() {
scene = new THREE.Scene();
scene.background = new THREE.Color(0xdddddd);
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;
controls = new THREE.OrbitControls(camera);
controls.addEventListener('change', renderer);
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);
renderer = new THREE.WebGLRenderer({antialias:true});
renderer.setSize(window.innerWidth,window.innerHeight);
document.body.appendChild(renderer.domElement);
let loader = new THREE.GLTFLoader();
loader.load('models/scene.gltf', function(gltf){
car = gltf.scene.children[0];
car.scale.set(0.5,0.5,0.5);
scene.add(gltf.scene);
animate();
});
}
function animate() {
renderer.render(scene,camera);
requestAnimationFrame(animate);
}
init();
</script>
</body>
</html>
请帮忙!
最佳答案
您的代码中存在一些问题:
- 如果您根据
OrbitControls的change事件按需呈现，则不需要动画循环。 OrbitControls的第二个 ctor 参数是必需的。它通常是renderer.domElement，这意味着您必须在控件之前创建渲染器。- 您不能将
renderer用作事件监听器。它应该是一个render()函数。
let scene, camera, renderer;
init();
render();
function init() {
scene = new THREE.Scene();
scene.background = new THREE.Color(0xdddddd);
camera = new THREE.PerspectiveCamera(40, window.innerWidth / window.innerHeight, 0.1, 5000);
camera.position.x = 8;
camera.position.y = 10;
camera.position.z = 10;
renderer = new THREE.WebGLRenderer({
antialias: true
});
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
const controls = new THREE.OrbitControls(camera, renderer.domElement);
controls.addEventListener('change', render);
const hlight = new THREE.AmbientLight(0x404040, 100);
scene.add(hlight);
const directionalLight = new THREE.DirectionalLight(0xffffff, 100);
directionalLight.position.set(0, 1, 0);
directionalLight.castShadow = true;
scene.add(directionalLight);
const light = new THREE.PointLight(0xc4c4c4, 10);
light.position.set(0, 300, 500);
scene.add(light);
const light2 = new THREE.PointLight(0xc4c4c4, 10);
light2.position.set(500, 100, 0);
scene.add(light2);
const light3 = new THREE.PointLight(0xc4c4c4, 10);
light3.position.set(0, 100, -500);
scene.add(light3);
const light4 = new THREE.PointLight(0xc4c4c4, 10);
light4.position.set(-500, 300, 500);
scene.add(light4);
const geometry = new THREE.BoxBufferGeometry();
const material = new THREE.MeshPhongMaterial();
const mesh = new THREE.Mesh( geometry, material )
scene.add( mesh );
}
function render() {
renderer.render(scene, camera);
}body {
background-color: #000;
margin: 0px;
overflow: hidden;
}<script src="https://cdn.jsdelivr.net/npm/three@0.116.1/build/three.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.116.1/examples/js/controls/OrbitControls.js"></script>关于javascript - Three.js Uncaught TypeError : Cannot read property 'addEventListener' of undefined，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/63154673/