three.js 绘制地球

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

// 创建场景
const scene = new THREE.Scene();

// 创建相机
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 5;

// 创建渲染器
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

// 加载地球纹理
const textureLoader = new THREE.TextureLoader();
textureLoader.load('path_to_earth_texture.jpg', (texture) => {
    const geometry = new THREE.SphereGeometry(1, 32, 32);
    const material = new THREE.MeshBasicMaterial({ map: texture });
    const earth = new THREE.Mesh(geometry, material);
    scene.add(earth);
});

// 添加轨道控制
const controls = new OrbitControls(camera, renderer.domElement);

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