canvas下雨产生涟漪动画效果代码
代码语言:html
所属分类:动画
代码描述:canvas下雨产生涟漪动画效果代码
下面为部分代码预览,完整代码请点击下载或在bfwstudio webide中打开
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<style>
* {
margin: 0;
padding: 0;
}
canvas {
background-color: rgba(255,255,255,0.5);
display: block;
}
</style>
</head>
<body>
<canvas id="canvas">你的浏览器不支持canvas</canvas>
<script>
var can = document.getElementById("canvas");
//设置绘图环境
var cxt = can.getContext("2d");
//获取浏览器窗口的宽高
var w = can.width = window.innerWidth;
var h = can.height = window.innerHeight;
//让画布的宽高跟随浏览器窗口的变化而变化
window.onresize = function () {
w = can.width = window.innerWidth;
h = can.height = window.innerHeight;
.........完整代码请登录后点击上方下载按钮下载查看
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