如何在Three.js中处理几何图形与网格？

// 导入Three.js库
import * as THREE from 'three';

// 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);

// 创建几何图形和材质
const geometry = new THREE.BoxGeometry();
const material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });

// 创建网格对象
const cube = new THREE.Mesh(geometry, material);

// 设置网格对象的位置
cube.position.x = 0;
cube.position.y = 0;
cube.position.z = -5;

// 添加网格对象到场景
scene.add(cube);

// 渲染循环
function animate() {
  requestAnimationFrame(animate);

  // 改变几何图形和网格的属性
  cube.rotation.x += 0.01;
  cube.rotation.y += 0.01;

  // 渲染场景
  renderer.render(scene, camera);
}
animate();