canvas渐变圈圈放大动画效果代码-html代码-BFW代码库

canvas渐变圈圈放大动画效果代码

代码语言：html

所属分类：动画

代码描述：canvas渐变圈圈放大动画效果代码

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 lang="en">

<head>

    <meta charset="UTF-8">



    <style>
        * {
          box-sizing: border-box;
        }
        
        html,
        body {
          position: relative;
          margin: 0;
          min-height: 100vh;
          overflow: hidden;
        
          background: repeating-radial-gradient(
            circle at center,
            #444 0 10%,
            #111 10% 20%
          );
        
          touch-action: none;
          -webkit-touch-callout: none;
          -webkit-text-size-adjust: none;
          -webkit-user-select: none;
        }
        
        canvas {
          width: 100%;
          height: auto;
          object-fit: contain;
        }
    </style>


</head>

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


    <script>
        const canvas = window.canvas;
        const ctx = canvas.getContext("2d");
        const dpr = window.devicePixelRatio;
        let diag = Math.hypot(canvas.width, canvas.height);
        
        function resize() {
          const { innerWidth: width, innerHeight: height } = window;
          canvas.width = width * dpr;
          canvas.height = height * dpr;
          diag = Math.hypot(width * dpr, height * dpr);
        }
        
        function* createHues() {
    .........完整代码请登录后点击上方下载按钮下载查看