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index.html
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<!DOCTYPE html>
<html>
<head>
<title>元旦快乐</title>
<meta charset="UTF-8">
<meta name="Author" content="只会切图的前端">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
</head>
<body>
<div id="container"></div>
<audio autoplay loop controls id="music">
<source src="img/875007460.mp3">
</audio>
<script src="js/three.min.js"></script>
<!-- 补间动画 -->
<script src="js/tween.min.js"></script>
<!-- 轨迹球控制器（TrackballControls） -->
<script src="js/TrackballControls.js"></script>
<script src="js/CSS3DRenderer.js"></script>
<script>
let musicDom = document.getElementById("music");
let picArr = [];
let arr = [
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]
// 生成随机图片
for (let i = 0; i < 199; i++) {
let yu = i % 32;
if (yu == 0) {
yu = 32;
}
picArr.push({
url: "https://nim-nosdn.netease.im/MjYxNjk1NDU="+arr[yu]
});
}
let table = [];
for (let i = 0; i < picArr.length; i++) {
table[i] = {};
if (i < picArr.length) {
table[i] = picArr[i];
}
table[i].p_x = i % 20 + 1;
table[i].p_y = Math.floor(i / 20) + 1;
}
//场景（scene）、相机（camera）和渲染器（renderer），这样我们就能透过摄像机渲染出场景
let camera, scene, renderer;
let controls;
let objects = [];
let targets = [];
init();
animate();
function init() {
//透视相机
camera = new THREE.PerspectiveCamera(40, window.innerWidth / window.innerHeight, 1, 10000);
camera.position.z = 3000;
//创建一个新的场景对象。
scene = new THREE.Scene();
for (let i = 0; i < table.length; i++) {
//创建dom元素
let dom = document.createElement('div');
dom.className = 'element';
let img = document.createElement('img');
img.src = table[i].url;
dom.appendChild(img);
let object = new THREE.CSS3DObject(dom);
object.position.x = Math.random() * 4000 - 2000;
object.position.y = Math.random() * 4000 - 2000;
object.position.z = Math.random() * 4000 - 2000;
scene.add(object);
objects.push(object);
}
//三维向量
let vector = new THREE.Vector3();
//球坐标
let spherical = new THREE.Spherical();
for (let i = 0, l = objects.length; i < l; i++) {
let phi = Math.acos(-1 + (2 * i) / l);
let theta = Math.sqrt(l * Math.PI) * phi;
//这是Three.js中大部分对象的基类，提供了一系列的属性和方法来对三维空间中的物体进行操纵。
let object = new THREE.Object3D();
spherical.set(800, phi, theta);
object.position.setFromSpherical(spherical);
vector.copy(object.position).multiplyScalar(2);
object.lookAt(vector);
targets.push(object);
}
//CSS3DRenderer用于通过CSS3的transform属性， 将层级的3D变换应用到DOM元素上
renderer = new THREE.CSS3DRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.domElement.style.position = 'absolute';
document.getElementById('container').appendChild(renderer.domElement);
// 鼠标控制
controls = new THREE.TrackballControls(camera, renderer.domElement);
controls.rotateSpeed = 0.5;//旋转的速度
controls.minDistance = 500;//够将相机向内移动多少
controls.maxDistance = 6000;//将相机向外移动多少
controls.addEventListener('change', render);
transform();
//窗口大小变化事件
window.addEventListener('resize', onWindowResize, false);
}
function transform() {
let duration = 2000;
TWEEN.removeAll();
for (let i = 0; i < objects.length; i++) {
let object = objects[i];
let target = targets[i];
new TWEEN.Tween(object.position)
.to({ x: target.position.x, y: target.position.y, z: target.position.z }, Math.random() * duration + duration)
.easing(TWEEN.Easing.Exponential.InOut)
.start();
new TWEEN.Tween(object.rotation)
.to({ x: target.rotation.x, y: target.rotation.y, z: target.rotation.z }, Math.random() * duration + duration)
.easing(TWEEN.Easing.Exponential.InOut)
.start();
}
new TWEEN.Tween(this)
.to({}, duration * 2)
.onUpdate(render)
.start();
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
render();
}
//旋转动画
function animate() {
// 让场景通过x轴或者y轴旋转 & z
// scene.rotation.x += 0.001;
scene.rotation.y += 0.001;
requestAnimationFrame(animate);
TWEEN.update();
controls.update();
// 渲染循环
render();
}
function render() {
renderer.render(scene, camera);
}
</script>
<style>
html,
body {
height: 100%;
}
body {
background-color: #000000;
margin: 0;
overflow: hidden;
}
.element {
width: 140px;
height: 140px;
cursor: pointer;
box-shadow: 0px 0px 12px rgba(238, 196, 11, 0.5);
border: 2px solid #fff;
text-align: center;
cursor: default;
}
.element:hover {
box-shadow: 0px 0px 12px rgba(11, 250, 250, 0.85);
border: 2px solid rgba(127, 255, 255, 0.85);
}
.element img {
width: 140px;
height: 140px;
cursor: pointer;
object-fit: cover;
}
#music {
display: none;
}
</style>
</body>
</html>