HTML+CSS+JS实现 ❤️酷炫3D瀑布流动画特效❤️

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效果演示： 文末获取源码

代码目录：

主要代码实现：

CSS样式：

 body {background: #222;color: white;overflow: hidden;}#container {box-shadow: inset 0 1px 0 #444, 0 -1px 0 #000;height: 100vh;width: 100vw;position: absolute;left: 0;top: 0;margin: 0;will-change: transform;-webkit-transform: translateZ(0);transform: translateZ(0);}canvas#waterfall {display: block;margin: 0 auto;width: 30%;height: 55%;will-change: transform;-webkit-transform: translateZ(0);transform: translateZ(0);}.emma {height: 100vh;width: 100%;position: absolute;left: 0;top: 0;margin: 0;}h1 {color: #0af;font-size: 30vw;}canvas#surface {-webkit-animation: fade-in 3000ms forwards;animation: fade-in 3000ms forwards;display: block;left: 0;position: absolute;top: 0;z-index: -1;}@-webkit-keyframes fade-in {0% {opacity: 0;}100% {opacity: 1;}}@keyframes fade-in {0% {opacity: 0;}100% {opacity: 1;}}

JS代码 :

   +!~-(function(PIXI, window, document, undefined) {var waterfallCanvas = function(c, cw, ch) {var _this = this;this.c = c;this.ctx = c.getContext('2d');this.cw = cw;this.ch = ch;this.particles = [];this.particleRate = 6;this.gravity = 0.15;this.init = function() {this.loop();};this.reset = function() {this.ctx.clearRect(0, 0, this.cw, this.ch);this.particles = [];};this.rand = function(rMi, rMa) {return ~~((Math.random() * (rMa - rMi + 1)) + rMi);};this.Particle = function() {var newWidth = _this.rand(1, 20);var newHeight = _this.rand(1, 45);this.x = _this.rand(10 + (newWidth / 2), _this.cw - 10 - (newWidth / 2));this.y = -newHeight;this.vx = 0;this.vy = 0;this.width = newWidth;this.height = newHeight;this.hue = _this.rand(200, 220);this.saturation = _this.rand(30, 60);this.lightness = _this.rand(30, 60);};this.Particle.prototype.update = function(i) {this.vx += this.vx;this.vy += _this.gravity;this.x += this.vx;this.y += this.vy;};this.Particle.prototype.render = function() {_this.ctx.strokeStyle = 'hsla(' + this.hue + ', ' + this.saturation + '%, ' + this.lightness + '%, .05)';_this.ctx.beginPath();_this.ctx.moveTo(this.x, this.y);_this.ctx.lineTo(this.x, this.y + this.height);_this.ctx.lineWidth = this.width / 2;_this.ctx.lineCap = 'round';_this.ctx.stroke();};this.Particle.prototype.renderBubble = function() {_this.ctx.fillStyle = 'hsla(' + this.hue + ', 40%, 40%, 1)';_this.ctx.fillStyle = 'hsla(' + this.hue + ', ' + this.saturation + '%, ' + this.lightness + '%, .3)';_this.ctx.beginPath();_this.ctx.arc(this.x + this.width / 2, _this.ch - 20 - _this.rand(0, 10), _this.rand(1, 8), 0, Math.PI * 2, false);_this.ctx.fill();};this.createParticles = function() {var i = this.particleRate;while (i--) {this.particles.push(new this.Particle());}};this.removeParticles = function() {var i = this.particleRate;while (i--) {var p = this.particles[i];if (p.y > _this.ch - 20 - p.height) {p.renderBubble();_this.particles.splice(i, 1);}}};this.updateParticles = function() {var i = this.particles.length;while (i--) {var p = this.particles[i];p.update(i);}};this.renderParticles = function() {var i = this.particles.length;while (i--) {var p = this.particles[i];p.render();}};this.clearCanvas = function() {this.ctx.globalCompositeOperation = 'destination-out';this.ctx.fillStyle = 'rgba(255,255,255,.06)';this.ctx.fillRect(0, 0, this.cw, this.ch);this.ctx.globalCompositeOperation = 'lighter';};this.loop = function() {var loopIt = function() {requestAnimationFrame(loopIt, _this.c);_this.clearCanvas();_this.createParticles();_this.updateParticles();_this.renderParticles();_this.removeParticles();};loopIt();};};var isCanvasSupported = function() {var elem = document.createElement('canvas');return !!(elem.getContext && elem.getContext('2d'));};var setupRAF = function() {var lastTime = 0;var vendors = ['ms', 'moz', 'webkit', 'o'];for (var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {window.requestAnimationFrame = window[vendors[x] + 'RequestAnimationFrame'];window.cancelAnimationFrame = window[vendors[x] + 'CancelAnimationFrame'] || window[vendors[x] + 'CancelRequestAnimationFrame'];}if (!window.requestAnimationFrame) {window.requestAnimationFrame = function(callback, element) {var currTime = new Date().getTime();var timeToCall = Math.max(0, 16 - (currTime - lastTime));var id = window.setTimeout(function() {callback(currTime + timeToCall);}, timeToCall);lastTime = currTime + timeToCall;return id;};}if (!window.cancelAnimationFrame) {window.cancelAnimationFrame = function(id) {clearTimeout(id);};}};if (isCanvasSupported()) {var c = document.getElementById('waterfall');var cw = c.width = Math.max(document.getElementById('waterfall').scrollWidth, document.getElementById('waterfall').offsetWidth, document.getElementById('waterfall').clientWidth, document.getElementById('waterfall').scrollWidth, document.getElementById('waterfall').offsetWidth);var ch = c.height = Math.max(document.getElementById('waterfall').scrollHeight, document.getElementById('waterfall').offsetHeight, document.getElementById('waterfall').clientHeight, document.getElementById('waterfall').scrollHeight, document.getElementById('waterfall').offsetHeight);var waterfall = new waterfallCanvas(c, cw, ch);setupRAF();waterfall.init();} /* Second plugin */var w, h, renderer, stage, waveGraphics, partGraphics, waveTexture, partTexture, waveCount, partCount, waves, parts;function init() {renderer = PIXI.autoDetectRenderer(window.innerWidth, window.innerHeight / 2, {backgroundColor: '0x' + tinycolor('hsl(200, 50%, 10%)').toHex()});stage = new PIXI.Container();waveCount = 2000;partCount = 1000;waves = [];parts = [];document.body.appendChild(renderer.view);reset();for (var i = 0; i < 300; i++) {step();}loop();}

上面的其他文件需要引入