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如何用javascript做出點擊屏幕產生煙花效果
!DOCTYPE html
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headmeta http-equiv=”Content-Type” content=”text/html; charset=UTF-8″
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title煙花/title
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var Fireworks = function(){
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var rand = function(rMi, rMa){return ~~((Math.random()*(rMa-rMi+1))+rMi);}
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self.partSpeedVariance = 10;
self.partWind = 50;
self.partFriction = 5;
self.partGravity = 1;
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self.hueMax = 360;
self.fworkSpeed = 4;
self.fworkAccel = 10;
self.hueVariance = 30;
self.flickerDensity = 25;
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speed: self.fworkSpeed,
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self.createParticles(f.targetX, f.targetY, f.hue);
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self.ctx.arc(Math.round(f.targetX), Math.round(f.targetY), rand(1,8), 0, Math.PI*2, false)
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self.ctx.translate(Math.round(f.x), Math.round(f.y));
self.ctx.rotate(f.shockwaveAngle);
self.ctx.beginPath();
self.ctx.arc(0, 0, 1*(f.speed/5), 0, Math.PI, true);
self.ctx.strokeStyle = ‘hsla(‘+f.hue+’, 100%, ‘+f.brightness+’%, ‘+rand(25, 60)/100+’)’;
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self.ctx.globalCompositeOperation = ‘destination-out’;
self.ctx.fillStyle = ‘rgba(0,0,0,’+self.clearAlpha/100+’)’;
self.ctx.fillRect(0,0,self.cw,self.ch);
self.updateFireworks();
self.updateParticles();
self.drawFireworks();
self.drawParticles();
};
self.init();
}
var fworks = new Fireworks();
});
/script
script type=”text/javascript”
$(document).ready(function() {
setTimeout(function() {
$(“#header”).hide(“slow”);
},2000);
});
/script
/body
/html
flash怎麼做煙花綻放的效果
你先做好煙花綻放的效果（最好是影片剪輯的元件）
再新建一個按鈕元件
是新建 不是在公用庫上拿
在按鈕中的＂彈起＂偵
上新建一個＂小矩形＂
就是一個方框
將其變成一個影片剪輯的元件
在＂屬性面板＂上
有個Alpha（透明度）英文
將他變成＂0＂
分另在指針經過和按下
點右鍵或按F6創建頭鍵偵
出返場景
再新建一個影片剪輯的元件
留出第一幀
就是第一偵是空白關鍵幀或按F7
第二幀開始做煙花動畫
第三幀開始做煙花動畫
第四幀開始做煙花動畫
新建一層
在＂第一幀＂上
放入按鈕
右擊按鈕
有個＂動作＂－＂全局函數＂－＂時間軸控制＂
輸入
on(rollOver){
play();
}
Plqy（開始播放影片）的英文
on（rollOver)是當以生滑鼠特定動作時的執行動作
然後
選中第一幀
就是按鈕那一幀
有個＂動作＂－＂全局函數＂－＂時間軸控制＂
不是點按鈕
有個Stop（停止播放影片）的英文
雙擊他
然後
回到場景中
把煙花綻放的那個影片元件
放出來
排成一排排
放滿整個舞台
播放影片
OK
怎樣做一個煙花動畫，謝謝
用maya做。很簡單！
1.打開maya界面，在左上角的物體類型框中選擇Dynamics（動力學）。
2.在最上面的工具欄中選擇Effects下的creat fireworks（建議先打開後面的「方塊」圖形，改變一下Num rockets的數目，及煙火的數目，點擊「creat」，
3。選擇時間軸右側的播放按鈕，煙火動畫便完成了。
原創文章，作者：小藍，如若轉載，請註明出處：https://www.506064.com/zh-tw/n/257659.html
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