分形螺旋动画效果-html代码-BFW代码库

分形螺旋动画效果

代码语言：html

所属分类：背景

代码描述：分形螺旋动画效果

代码标签：效果

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 {
  margin: 0;
  height: 500vh;
}

/* scrollbar hide hacks */
body::-webkit-scrollbar { width:0; }

canvas {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  width: 100vw;
  height: 100vh;
}

#warpSpeed {
  display: none;
  top: 16px;
  left: 16px;
  position: fixed;
  background: transparent;
  width: 150px;
  border: 1px solid #fff;
  color: #fff;
  font-family: monospace;
  
}
</style>

</head>
<body translate="no">
<canvas id="canv"></canvas>
<input id="warpSpeed" value="0" />
<script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/glea.js"></script>
<script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/gsap.3.3.1.js"></script>
<script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/ScrollTrigger.min.js"></script>
<script>
const warpSpeed = document.querySelector('#warpSpeed');
gsap.registerPlugin(ScrollTrigger);
gsap.to('#warpSpeed', {
  value: 100,
  ease: 'none',
  scrollTrigger: { scrub: 0.3 } });

const glsl = x => x;

const frag = glsl`
precision highp float;
uniform float time;
uniform float width;
uniform float height;
uniform float warpSpeed;

const float PI = 3.141592654;
const float DEG = PI / 180.0;

vec2 coords() {
  float vmin = min(width, height);
  return vec2((gl_FragCoord.x - width * .5) / vmin,
              (gl_FragCoord.y - height * .5) / vmin);
}

vec2 rotate(vec2 p, float a) {
  return vec2(p.x * cos(a) - p.y * sin(a),
              p.x * sin(a) + p.y * cos(a));
}

vec2 repeat(in vec2 p, in vec2 c) {
  return mod(p, c) - 0.5 * c;
}

// Distance functions by Inigo Quilez
// https://iquilezles.org/www/articles/distfunctions2d/distfunctions2d.htm
float circle(in vec2 p, in vec2 pos, float radius) {
  return length((p - pos)) - radius;
}

float distanceField(vec2 p) {
  flo.........完整代码请登录后点击上方下载按钮下载查看