Mesh变换动画 ·Transform Gsap· ▶ 在线运行案例案例合集三维可视化功能案例threehub.cn开源仓库github地址https://github.com/z2586300277/three-cesium-examples400个案例代码:网盘链接你将学到什么OrbitControls 相机轨道交互FBXLoader 加载 FBX 城市/角色模型GSAP 时间轴与补间动画requestAnimationFrame渲染循环与resize自适应效果说明本案例演示Mesh变换动画效果基于 WebGL 实现「Mesh变换动画」可视化效果附完整可运行源码核心用到 OrbitControls、FBXLoader、GSAP。建议先打开文首在线案例查看动态画面再对照下方源码逐步理解。核心概念Scene / Camera / WebGLRenderer构成最小渲染闭环大场景可开logarithmicDepthBuffer缓解 Z-fighting。OrbitControls提供轨道旋转/缩放开启enableDamping后需在 animate 中controls.update()。阅读下方完整源码时建议从init/load/animate三条主线入手再深入 shader 与工具函数。实现步骤搭建 Scene、PerspectiveCamera、WebGLRenderer挂载 canvas 并处理resize异步加载模型 / 3D Tiles / GeoJSON 等资源并加入 scene 或 entities创建 OrbitControls及 Raycaster 等交互控件若源码包含在定时器或 GSAP 时间轴中更新 uniform / 变换驱动特效播放在requestAnimationFrame循环中更新状态并 renderCesium 为viewer.render或自动渲染代码要点import * as THREE from threeimport { OrbitControls } from three/examples/jsm/controls/OrbitControls.js import { FBXLoader } from three/examples/jsm/loaders/FBXLoader.js import gsap from gsapconst box document.getElementById(box)const scene new THREE.Scene()const camera new THREE.PerspectiveCamera(75, box.clientWidth / box.clientHeight, 0.1, 1000)camera.position.set(10, 10, 10)const renderer new THREE.WebGLRenderer()renderer.setSize(box.clientWidth, box.clientHeight)box.appendChild(renderer.domElement)new OrbitControls(camera, renderer.domElement)animate()function animate() {renderer.render(scene, camera)requestAnimationFrame(animate)}window.onresize () {renderer.setSize(box.clientWidth, box.clientHeight)camera.aspect box.clientWidth / box.clientHeightcamera.updateProjectionMatrix()}scene.add(new THREE.AxesHelper(100000), new THREE.AmbientLight(0xffffff, 6))// 加载模型 new FBXLoader().load(HOST /files/model/city.FBX, (object3d) {scene.add(object3d)object3d.scale.set(0.0005, 0.0005, 0.0005)setTransformAnimate(object3d)})// 变换动画 function setTransformAnimate(mesh) {const position mesh.position.clone() position.y 5 // 位置向上移动100const rotation mesh.rotation.clone()rotation.y Math.PI / 4 // 旋转45度const scale mesh.scale.clone() scale.z * 2 // 缩放z轴2倍scale.x * 2 // 缩放x轴2倍// 组合参数 const transformInfo_ { position, rotation, scale }// 执行 const promises_gsap [position, rotation, scale].map(i {return new Promise(resolve { gsap.to(mesh[i], { x: transformInfo_[i].x, y: transformInfo_[i].y, z: transformInfo_[i].z, //间隔时间 duration: 3, //动画参数名 ease: none, //重复次数 repeat: 0, //往返移动 yoyo: false, yoyoEase: true, onComplete: resolve }) }) }) Promise.all(promises_gsap).then(() console.log(动画完成))}完整源码GitHub小结本文提供Mesh变换动画完整 Three.js 源码与在线 Demo建议先运行案例再改 uniform/参数做二次实验更多 Three.js 实战案例见 three-cesium-examples 合集 与 GitHub 开源仓库