three.js 鼠标控制

// 引入 three.js 和 OrbitControls.js
import * as THREE from 'three';
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js';

// 创建场景、相机和渲染器
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

// 添加一个简单的立方体
const geometry = new THREE.BoxGeometry();
const material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
const cube = new THREE.Mesh(geometry, material);
scene.add(cube);

camera.position.z = 5;

// 设置 OrbitControls
const controls = new OrbitControls(camera, renderer.domElement);
controls.enableDamping = true; // 使控制更平滑
controls.dampingFactor = 0.25;
controls.enableZoom = true;

// 动画循环
function animate() {
    requestAnimationFrame(animate);
    controls.update(); // 更新控制器
    renderer.render(scene, camera);
}
animate();

// 调整窗口大小时更新渲染器和相机
window.addEventListener('resize', () => {
    camera.aspect = window.innerWidth / window.innerHeight;
    camera.updateProjectionMatrix();
    renderer.setSize(window.innerWidth, window.innerHeight);
});