波浪效果

css：

body {
background-color: #193c6d;
filter: progid: DXImageTransform.Microsoft.gradient(gradientType=1, startColorstr='#003073', endColorstr='#029797');
background-image: 
    url(//img.alicdn.com/tps/TB1d.u8MXXXXXXuXFXXXXXXXXXX-1900-790.jpg);
    background-size: 100%;
    background-image: -webkit-gradient(linear, 0 0, 100% 100%,     color-stop(0, #003073), color-stop(100%, #029797));
    background-image: -webkit-linear-gradient(135deg, #003073, #029797);
    background-image: -moz-linear-gradient(45deg, #003073, #029797);
    background-image: -ms-linear-gradient(45deg, #003073 0, #029797 100%);
    background-image: -o-linear-gradient(45deg, #003073, #029797);
    background-image: linear-gradient(135deg, #003073, #029797);
    text-align: center;
    margin: 0px;
    overflow: hidden;
}

 

引入 three.min.js

js :

var SEPARATION = 100,
AMOUNTX = 100,
AMOUNTY = 70;
 
var container;
var camera, scene, renderer;
 
var particles, particle, count = 0;
 
var mouseX = 85,
mouseY = -342;
 
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
 
init();
animate();
 
function init() {
 
container = document.createElement('div');
document.body.appendChild(container);
 
camera = new THREE.PerspectiveCamera(120, window.innerWidth / window.innerHeight, 1, 10000);
camera.position.z = 1000;
 
scene = new THREE.Scene();
 
particles = new Array();
 
var PI2 = Math.PI * 2;
var material = new THREE.ParticleCanvasMaterial({
 
color: 0xe1e1e1,
program: function(context) {
 
context.beginPath();
context.arc(0, 0, .6, 0, PI2, true);
context.fill();
 
}
 
});
 
var i = 0;
 
for (var ix = 0; ix < AMOUNTX; ix++) {
 
for (var iy = 0; iy < AMOUNTY; iy++) {
 
particle = particles[i++] = new THREE.Particle(material);
particle.position.x = ix * SEPARATION - ((AMOUNTX * SEPARATION) / 2);
particle.position.z = iy * SEPARATION - ((AMOUNTY * SEPARATION) / 2);
scene.add(particle);
 
}
 
}
 
renderer = new THREE.CanvasRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
container.appendChild(renderer.domElement);
 
document.addEventListener('mousemove', onDocumentMouseMove, false);
document.addEventListener('touchstart', onDocumentTouchStart, false);
document.addEventListener('touchmove', onDocumentTouchMove, false);
 
//
 
window.addEventListener('resize', onWindowResize, false);
 
}
 
function onWindowResize() {
 
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
 
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
 
renderer.setSize(window.innerWidth, window.innerHeight);
 
}
 
//
 
function onDocumentMouseMove(event) {
 
mouseX = event.clientX - windowHalfX;
mouseY = event.clientY - windowHalfY;
 
}
 
function onDocumentTouchStart(event) {
 
if (event.touches.length === 1) {
 
event.preventDefault();
 
mouseX = event.touches[0].pageX - windowHalfX;
mouseY = event.touches[0].pageY - windowHalfY;
 
}
 
}
 
function onDocumentTouchMove(event) {
 
if (event.touches.length === 1) {
 
event.preventDefault();
 
mouseX = event.touches[0].pageX - windowHalfX;
mouseY = event.touches[0].pageY - windowHalfY;
 
}
 
}
 
//
 
function animate() {
 
requestAnimationFrame(animate);
 
render();
 
 
}
 
function render() {
 
camera.position.x += (mouseX - camera.position.x) * .05;
camera.position.y += (-mouseY - camera.position.y) * .05;
camera.lookAt(scene.position);
 
var i = 0;
 
for (var ix = 0; ix < AMOUNTX; ix++) {
 
for (var iy = 0; iy < AMOUNTY; iy++) {
 
particle = particles[i++];
particle.position.y = (Math.sin((ix + count) * 0.3) * 50) + (Math.sin((iy + count) * 0.5) * 50);
particle.scale.x = particle.scale.y = (Math.sin((ix + count) * 0.3) + 1) * 2 + (Math.sin((iy + count) * 0.5) + 1) * 2;
 
}
 
}
 
renderer.render(scene, camera);
 
count += 0.1;
 
}