three.js+线条动画

// 引入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);

// 创建线条几何体和材质
const geometry = new THREE.BufferGeometry().setFromPoints([
    new THREE.Vector3(-1, 0, 0),
    new THREE.Vector3(1, 0, 0)
]);
const material = new THREE.LineBasicMaterial({ color: 0x00ff00 });

// 创建线条对象
const line = new THREE.Line(geometry, material);
scene.add(line);

// 设置相机位置
camera.position.z = 5;

// 动画函数
function animate() {
    requestAnimationFrame(animate);

    // 更新线条的位置
    const positions = line.geometry.attributes.position.array;
    for (let i = 0; i < positions.length; i += 3) {
        positions[i] += (Math.random() - 0.5) * 0.01; // 随机移动
    }
    line.geometry.attributes.position.needsUpdate = true;

    renderer.render(scene, camera);
}

animate();