canvas实现聚烯烃动画效果代码-html代码-BFW代码库

canvas实现聚烯烃动画效果代码

代码语言：html

所属分类：动画

代码描述：canvas实现聚烯烃动画效果代码

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>
body {
  font-family: Arial, Helvetica, "Liberation Sans", FreeSans, sans-serif;
  background-color: #ffe;
  margin:0;
  padding:0;
  border-width:0;
  overflow:hidden;
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
}

div {
    position: absolute;
    top: 0;
    left: 0;
    width : 100vw;
    height: 100vh;
    transition: background-color 1.5s linear;
}
</style>


</head>

<body  >


  
      <script >
"use strict";
/* Author : Claude Chauvet (https://codepen.io/Dillo)
/* very much inspired by mandala vı https://codepen.io/smlsvnssn/pen/VQwyJN by smlsvnssn (@smlsvnssn) */

window.addEventListener("load", function () {

  const mrandom = Math.random;
  const mfloor = Math.floor;
  const mround = Math.round;
  const mceil = Math.ceil;
  const mabs = Math.abs;
  const mmin = Math.min;
  const mmax = Math.max;

  const mPI = Math.PI;
  const mPIS2 = Math.PI / 2;
  const m2PI = Math.PI * 2;
  const msin = Math.sin;
  const mcos = Math.cos;
  const matan2 = Math.atan2;

  const mhypot = Math.hypot;
  const msqrt = Math.sqrt;

  let maxx, maxy;
  let repeat, nbPoly, polyodous;
  let tx, ty; // tables of cosines / sines
  let withBlur;

  /*	============================================================================
  	This hash function is based upon Johannes Baagoe's carefully designed and efficient hash
  	function for use with JavaScript.  It has a proven "avalanche" effect such
  	that every bit of the input affects every bit of the output 50% of the time,
  	which is good.	See: http://baagoe.com/en/RandomMusings/hash/avalanche.xhtml
  	============================================================================
  */
  /* This function returns a hash function depending on a seed.
  
  if no seed is provided (or a falsy value), Math.random() is used.
  The returned function always returns the same number in the range [0..1[ for the
  sam.........完整代码请登录后点击上方下载按钮下载查看