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今天給大家?guī)韼讉€好看的基于 HTML+CSS+JS 的煙花特效

雪花 、 櫻花 、 浪漫賀卡 以及 圣誕樹 我前段時間剛做過，感興趣的也可以看看我前幾期的博客：

雪花：https://haiyong.blog.csdn.net/article/details/105786233
櫻花：https://haiyong.blog.csdn.net/article/details/122008942
圣誕樹和賀卡：https://haiyong.blog.csdn.net/article/details/122024043

🎇 五種不同的JS煙花特效

🍕 一、簡單大氣的煙花

演示地址：https://haiyong.site/demo/fireworks1.html

HTML代碼：

這里的HTML代碼很簡短

<div><canvas id="canvas"></canvas>
</div>

CSS代碼

css也只有這兩段內(nèi)容

body{background:black;overflow:hidden;margin:0;
}
canvas{background:#000;
}

JS代碼

所有的源碼都在這里了，復(fù)制粘貼即可

window.addEventListener("resize", resizeCanvas, false);
window.addEventListener("DOMContentLoaded", onLoad, false);
window.requestAnimationFrame = 
window.requestAnimationFrame       || 
window.webkitRequestAnimationFrame || 
window.mozRequestAnimationFrame    || 
window.oRequestAnimationFrame      || 
window.msRequestAnimationFrame     || 
function (callback) {window.setTimeout(callback, 1000/60);
};var canvas, ctx, w, h, particles = [], probability = 0.04,xPoint, yPoint;function onLoad() {canvas = document.getElementById("canvas");ctx = canvas.getContext("2d");resizeCanvas();     window.requestAnimationFrame(updateWorld);} function resizeCanvas() {if (!!canvas) {w = canvas.width = window.innerWidth;h = canvas.height = window.innerHeight;}} function updateWorld() {update();paint();window.requestAnimationFrame(updateWorld);} function update() {if (particles.length < 500 && Math.random() < probability) {createFirework();}var alive = [];for (var i=0; i<particles.length; i++) {if (particles[i].move()) {alive.push(particles[i]);}}particles = alive;} function paint() {ctx.globalCompositeOperation = 'source-over';ctx.fillStyle = "rgba(0,0,0,0.2)";ctx.fillRect(0, 0, w, h);ctx.globalCompositeOperation = 'lighter';for (var i=0; i<particles.length; i++) {particles[i].draw(ctx);}} function createFirework() {xPoint = Math.random()*(w-200)+100;yPoint = Math.random()*(h-200)+100;var nFire = Math.random()*50+100;var c = "rgb("+(~~(Math.random()*200+55))+","+(~~(Math.random()*200+55))+","+(~~(Math.random()*200+55))+")";for (var i=0; i<nFire; i++) {var particle = new Particle();particle.color = c;var vy = Math.sqrt(25-particle.vx*particle.vx);if (Math.abs(particle.vy) > vy) {particle.vy = particle.vy>0 ? vy: -vy;}particles.push(particle);}} function Particle() {this.w = this.h = Math.random()*4+1;  this.x = xPoint-this.w/2;this.y = yPoint-this.h/2;     this.vx = (Math.random()-0.5)*10;this.vy = (Math.random()-0.5)*10;    this.alpha = Math.random()*.5+.5;     this.color;} Particle.prototype = {gravity: 0.05,move: function () {this.x += this.vx;this.vy += this.gravity;this.y += this.vy;this.alpha -= 0.01;if (this.x <= -this.w || this.x >= screen.width ||this.y >= screen.height ||this.alpha <= 0) {return false;}return true;},draw: function (c) {c.save();c.beginPath();         c.translate(this.x+this.w/2, this.y+this.h/2);c.arc(0, 0, this.w, 0, Math.PI*2);c.fillStyle = this.color;c.globalAlpha = this.alpha;         c.closePath();c.fill();c.restore();}} 

🍜 二、在農(nóng)村看到的煙花

演示地址：https://haiyong.site/demo/fireworks2.html（需要使用電腦打開，沒做響應(yīng)式手機端打開一片黑，或者可以看看后面的煙花）

HTML代碼：

這里的HTML代碼還是一樣的簡短

<div id="jsi-fireworks-container" class="container"></div>

CSS代碼

css也只有這三段內(nèi)容

html, body{width: 100%;height: 100%;margin: 0;padding: 0;overflow: hidden;background-color: #101010;
}
.container{position: absolute;width: 500px;height: 500px;top: 50%;left: 50%;margin-top: -250px;margin-left: -250px;
}
canvas{position: absolute;top: 0;left: 0;
}

JS代碼

JS代碼比較長，我這里放了一部分，需要完整源碼的可以關(guān)注公眾號【海擁】回復(fù)【煙花】

var RENDERER = {LEAF_INTERVAL_RANGE : {min : 100, max : 200},FIREWORK_INTERVAL_RANGE : {min : 20, max : 200},SKY_COLOR : 'hsla(210, 60%, %luminance%, 0.2)',STAR_COUNT : 100,init : function(){this.setParameters();this.reconstructMethod();this.createTwigs();this.createStars();this.render();},setParameters : function(){this.$container = $('#jsi-fireworks-container');this.width = this.$container.width();this.height = this.$container.height();this.distance = Math.sqrt(Math.pow(this.width / 2, 2) + Math.pow(this.height / 2, 2));this.contextFireworks = $('<canvas />').attr({width : this.width, height : this.height}).appendTo(this.$container).get(0).getContext('2d');this.contextTwigs = $('<canvas />').attr({width : this.width, height : this.height}).appendTo(this.$container).get(0).getContext('2d');this.twigs = [];this.leaves = [new LEAF(this.width, this.height, this)];this.stars = [];this.fireworks = [new FIREWORK(this.width, this.height, this)];this.leafInterval = this.getRandomValue(this.LEAF_INTERVAL_RANGE) | 0;this.maxFireworkInterval = this.getRandomValue(this.FIREWORK_INTERVAL_RANGE) | 0;this.fireworkInterval = this.maxFireworkInterval;},reconstructMethod : function(){this.render = this.render.bind(this);},getRandomValue : function(range){return range.min + (range.max - range.min) * Math.random();},createTwigs : function(){this.twigs.push(new TWIG(this.width, this.height, 0, 0, Math.PI * 3 / 4, 0));this.twigs.push(new TWIG(this.width, this.height, this.width, 0, -Math.PI * 3 / 4, Math.PI));this.twigs.push(new TWIG(this.width, this.height, 0, this.height, Math.PI / 4, Math.PI));this.twigs.push(new TWIG(this.width, this.height, this.width, this.height, -Math.PI / 4, 0));},createStars : function(){for(var i = 0, length = this.STAR_COUNT; i < length; i++){this.stars.push(new STAR(this.width, this.height, this.contextTwigs, this));}},render : function(){requestAnimationFrame(this.render);var maxOpacity = 0,contextTwigs = this.contextTwigs,contextFireworks = this.contextFireworks;for(var i = this.fireworks.length - 1; i >= 0; i--){maxOpacity = Math.max(maxOpacity, this.fireworks[i].getOpacity());}contextTwigs.clearRect(0, 0, this.width, this.height);contextFireworks.fillStyle = this.SKY_COLOR.replace('%luminance', 5 + maxOpacity * 15);contextFireworks.fillRect(0, 0, this.width, this.height);for(var i = this.fireworks.length - 1; i >= 0; i--){if(!this.fireworks[i].render(contextFireworks)){this.fireworks.splice(i, 1);}}for(var i = this.stars.length - 1; i >= 0; i--){this.stars[i].render(contextTwigs);}for(var i = this.twigs.length - 1; i >= 0; i--){this.twigs[i].render(contextTwigs);}for(var i = this.leaves.length - 1; i >= 0; i--){if(!this.leaves[i].render(contextTwigs)){this.leaves.splice(i, 1);}}if(--this.leafInterval == 0){this.leaves.push(new LEAF(this.width, this.height, this));this.leafInterval = this.getRandomValue(this.LEAF_INTERVAL_RANGE) | 0;}if(--this.fireworkInterval == 0){this.fireworks.push(new FIREWORK(this.width, this.height, this));this.maxFireworkInterval = this.getRandomValue(this.FIREWORK_INTERVAL_RANGE) | 0;this.fireworkInterval = this.maxFireworkInterval;}}
};

🧀 三、可點擊的煙花

演示地址：https://haiyong.site/demo/fireworks3.html

HTML代碼：

<canvas id="canvas"></canvas>

CSS代碼

body{background-color: #000;
}canvas{display: block;margin: auto;-webkit-tap-highlight-color:rgba(0,0,0,0);-webkit-user-select:none; 
}

完整JS代碼

(function() {var Fireworks, GRAVITY, K, SPEED, ToRadian, canvas, context, ctx, fireBoss, repeat, stage;			canvas = document.getElementById("canvas");			context = canvas.getContext("2d");			canvas.width = window.innerWidth;			canvas.height = window.innerHeight;			stage = new createjs.Stage(canvas);			stage.autoClear = false;			ctx = canvas.getContext("2d");			ctx.fillStyle = "rgba(0, 0, 0, 0)";			ctx.fillRect(0, 0, canvas.width, canvas.height);			createjs.Ticker.setFPS(50);			createjs.Touch.enable(stage);			stage.update();// 重力GRAVITY = 1;// 抵抗K = 0.9;// 速度SPEED = 12;// 從度數(shù)轉(zhuǎn)換為弧度ToRadian = function(degree) {return degree * Math.PI / 180.0;};// 制作煙花的classFireworks = class Fireworks {constructor(sx = 100, sy = 100, particles = 70) {var circle, i, j, rad, ref, speed;this.sx = sx;this.sy = sy;this.particles = particles;this.sky = new createjs.Container();this.r = 0;this.h = Math.random() * 360 | 0;this.s = 100;this.l = 50;this.size = 3;for (i = j = 0, ref = this.particles; (0 <= ref ? j < ref : j > ref); i = 0 <= ref ? ++j : --j) {speed = Math.random() * 12 + 2;circle = new createjs.Shape();circle.graphics.f(`hsla(${this.h}, ${this.s}%, ${this.l}%, 1)`).dc(0, 0, this.size);circle.snapToPixel = true;circle.compositeOperation = "lighter";rad = ToRadian(Math.random() * 360 | 0);circle.set({x: this.sx,y: this.sy,vx: Math.cos(rad) * speed,vy: Math.sin(rad) * speed,rad: rad});this.sky.addChild(circle);}stage.addChild(this.sky);}explode() {var circle, j, p, ref;if (this.sky) {++this.h;for (p = j = 0, ref = this.sky.getNumChildren(); (0 <= ref ? j < ref : j > ref); p = 0 <= ref ? ++j : --j) {circle = this.sky.getChildAt(p);// 加速度circle.vx = circle.vx * K;circle.vy = circle.vy * K;// 位置計算circle.x += circle.vx;circle.y += circle.vy + GRAVITY;this.l = Math.random() * 100;// 粒度this.size = this.size - 0.001;if (this.size > 0) {circle.graphics.c().f(`hsla(${this.h}, 100%, ${this.l}%, 1)`).dc(0, 0, this.size);}}if (this.sky.alpha > 0.1) {this.sky.alpha -= K / 50;} else {stage.removeChild(this.sky);this.sky = null;}} else {		}}		};fireBoss = [];setInterval(function() {ctx.fillStyle = "rgba(0, 0, 0, 0.1)";ctx.fillRect(0, 0, canvas.width, canvas.height);}, 40);setInterval(function() {var x, y;x = Math.random() * canvas.width | 0;y = Math.random() * canvas.height | 0;fireBoss.push(new Fireworks(x, y));return fireBoss.push(new Fireworks(x, y));}, 1300);repeat = function() {var fireworks, j, ref;for (fireworks = j = 0, ref = fireBoss.length; (0 <= ref ? j < ref : j > ref); fireworks = 0 <= ref ? ++j : --j) {if (fireBoss[fireworks].sky) {fireBoss[fireworks].explode();}}stage.update();};createjs.Ticker.on("tick", repeat);stage.addEventListener("stagemousedown", function() {fireBoss.push(new Fireworks(stage.mouseX, stage.mouseY));return fireBoss.push(new Fireworks(stage.mouseX, stage.mouseY));});			
}).call(this);

🍖 四、3D旋轉(zhuǎn)煙花

演示地址：https://haiyong.site/demo/fireworks4.html

HTML代碼：

<canvas id="canvas"></canvas>

CSS代碼

html,body{margin:0px;width:100%;height:100%;overflow:hidden;background:#000;
}#canvas{width:100%;height:100%;
}

部分JS代碼

JS代碼比較長我就不全列出來了，需要完整源碼可以點擊此處下載本篇文章所有源碼：

 function initVars(){pi=Math.PI;ctx=canvas.getContext("2d");canvas.width=canvas.clientWidth;canvas.height=canvas.clientHeight;cx=canvas.width/2;cy=canvas.height/2;playerZ=-25;playerX=playerY=playerVX=playerVY=playerVZ=pitch=yaw=pitchV=yawV=0;scale=600;seedTimer=0;seedInterval=5,seedLife=100;gravity=.02;seeds=new Array();sparkPics=new Array();s="https://cantelope.org/NYE/";for(i=1;i<=10;++i){sparkPic=new Image();sparkPic.src=s+"spark"+i+".png";sparkPics.push(sparkPic);}sparks=new Array();pow1=new Audio(s+"pow1.ogg");pow2=new Audio(s+"pow2.ogg");pow3=new Audio(s+"pow3.ogg");pow4=new Audio(s+"pow4.ogg");frames = 0;
}function rasterizePoint(x,y,z){var p,d;x-=playerX;y-=playerY;z-=playerZ;p=Math.atan2(x,z);d=Math.sqrt(x*x+z*z);x=Math.sin(p-yaw)*d;z=Math.cos(p-yaw)*d;p=Math.atan2(y,z);d=Math.sqrt(y*y+z*z);y=Math.sin(p-pitch)*d;z=Math.cos(p-pitch)*d;var rx1=-1000,ry1=1,rx2=1000,ry2=1,rx3=0,ry3=0,rx4=x,ry4=z,uc=(ry4-ry3)*(rx2-rx1)-(rx4-rx3)*(ry2-ry1);if(!uc) return {x:0,y:0,d:-1};var ua=((rx4-rx3)*(ry1-ry3)-(ry4-ry3)*(rx1-rx3))/uc;var ub=((rx2-rx1)*(ry1-ry3)-(ry2-ry1)*(rx1-rx3))/uc;if(!z)z=.000000001;if(ua>0&&ua<1&&ub>0&&ub<1){return {x:cx+(rx1+ua*(rx2-rx1))*scale,y:cy+y/z*scale,d:Math.sqrt(x*x+y*y+z*z)};}else{return {x:cx+(rx1+ua*(rx2-rx1))*scale,y:cy+y/z*scale,d:-1};}
}function spawnSeed(){seed=new Object();seed.x=-50+Math.random()*100;seed.y=25;seed.z=-50+Math.random()*100;seed.vx=.1-Math.random()*.2;seed.vy=-1.5;//*(1+Math.random()/2);seed.vz=.1-Math.random()*.2;seed.born=frames;seeds.push(seed);
}

🍰 五、可拖動視角的自定義煙花

演示地址：https://haiyong.site/demo/fireworks5.html

HTML代碼：

 <div id="WebGL-output"></div>

CSS代碼

body {margin: 0;overflow: hidden;background: -webkit-linear-gradient(0deg, rgb(0, 12, 91), rgb(0, 0, 0));background: linear-gradient(0deg, rgb(0, 12, 91), rgb(0, 0, 0));}

部分JS代碼

JS代碼比較長我就不全列出來了，需要完整源碼可以參見文章末尾兩種獲取源碼方式

let scene,
camera,
renderer,
orbitControls,
planeMesh,
canvasTexture,
isAutoLaunch = true;const gravity = new THREE.Vector3(0, -0.005, 0);
const friction = 0.998;
const noise = new SimplexNoise();
const textureSize = 128.0;
const fireworksInstances = [];let outputDom;const getOffsetXYZ = i => {const offset = 3;const index = i * offset;const x = index;const y = index + 1;const z = index + 2;return { x, y, z };
};const getOffsetRGBA = i => {const offset = 4;const index = i * offset;const r = index;const g = index + 1;const b = index + 2;const a = index + 3;return { r, g, b, a };
};const gui = new dat.GUI();
const guiControls = new function () {this.ParticleSize = 300;this.AutoLaunch = true;
}();
gui.add(guiControls, 'ParticleSize', 100, 600);
gui.add(guiControls, 'AutoLaunch').onChange(e => {isAutoLaunch = e;outputDom.style.cursor = isAutoLaunch ? 'auto' : 'pointer';
});const getRandomNum = (max = 0, min = 0) => Math.floor(Math.random() * (max + 1 - min)) + min;const launchFireWorks = () => {if (fireworksInstances.length > 5) return;const fw = Math.random() > 8 ? new BasicFIreWorks() : new RichFIreWorks();fireworksInstances.push(fw);scene.add(fw.meshGroup);
};const autoLaunch = () => {if (!isAutoLaunch) return;if (Math.random() > 0.7) launchFireWorks();
};const drawRadialGradation = (ctx, canvasRadius, canvasW, canvasH) => {ctx.save();const gradient = ctx.createRadialGradient(canvasRadius, canvasRadius, 0, canvasRadius, canvasRadius, canvasRadius);gradient.addColorStop(0.0, 'rgba(255,255,255,1.0)');gradient.addColorStop(0.5, 'rgba(255,255,255,0.5)');gradient.addColorStop(1.0, 'rgba(255,255,255,0)');ctx.fillStyle = gradient;ctx.fillRect(0, 0, canvasW, canvasH);ctx.restore();
};const getTexture = () => {const canvas = document.createElement('canvas');const ctx = canvas.getContext('2d');const diameter = textureSize;canvas.width = diameter;canvas.height = diameter;const canvasRadius = diameter / 2;drawRadialGradation(ctx, canvasRadius, canvas.width, canvas.height);const texture = new THREE.Texture(canvas);texture.type = THREE.FloatType;texture.needsUpdate = true;return texture;
};canvasTexture = getTexture();const getPointMesh = (num, vels, type) => {const bufferGeometry = new THREE.BufferGeometry();const vertices = [];const velocities = [];const colors = [];const adjustSizes = [];const masses = [];const colorType = Math.random() > 0.3 ? 'single' : 'multiple';const singleColor = getRandomNum(100, 20) * 0.01;const multipleColor = () => getRandomNum(100, 1) * 0.01;let rgbType;const rgbTypeDice = Math.random();if (rgbTypeDice > 0.66) {rgbType = 'red';} else if (rgbTypeDice > 0.33) {rgbType = 'green';} else {rgbType = 'blue';}for (let i = 0; i < num; i++) {const pos = new THREE.Vector3(0, 0, 0);vertices.push(pos.x, pos.y, pos.z);velocities.push(vels[i].x, vels[i].y, vels[i].z);if (type === 'seed') {let size;if (type === 'trail') {size = Math.random() * 0.1 + 0.1;} else {size = Math.pow(vels[i].y, 2) * 0.04;}if (i === 0) size *= 1.1;adjustSizes.push(size);masses.push(size * 0.017);colors.push(1.0, 1.0, 1.0, 1.0);} else {const size = getRandomNum(guiControls.ParticleSize, 10) * 0.001;adjustSizes.push(size);masses.push(size * 0.017);if (colorType === 'multiple') {colors.push(multipleColor(), multipleColor(), multipleColor(), 1.0);} else {switch (rgbType) {case 'red':colors.push(singleColor, 0.1, 0.1, 1.0);break;case 'green':colors.push(0.1, singleColor, 0.1, 1.0);break;case 'blue':colors.push(0.1, 0.1, singleColor, 1.0);break;default:colors.push(singleColor, 0.1, 0.1, 1.0);}}}}bufferGeometry.addAttribute('position', new THREE.Float32BufferAttribute(vertices, 3).setDynamic(true));bufferGeometry.addAttribute('velocity', new THREE.Float32BufferAttribute(velocities, 3).setDynamic(true));bufferGeometry.addAttribute('color', new THREE.Float32BufferAttribute(colors, 4).setDynamic(true));bufferGeometry.addAttribute('adjustSize', new THREE.Float32BufferAttribute(adjustSizes, 1).setDynamic(true));bufferGeometry.addAttribute('mass', new THREE.Float32BufferAttribute(masses, 1).setDynamic(true));

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? 完整源碼下載

本篇文章所有源碼都已打包好，下載方式有如下三種

1.CSDN資源下載（這個需要付費，白嫖的可以往下看）https://download.csdn.net/download/qq_44273429/75794027
2.關(guān)注公眾號【海擁】回復(fù)【煙花】獲取
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