three打造一个炫酷多彩三维线条折叠花朵效果代码-html代码-BFW代码库

three打造一个炫酷多彩三维线条折叠花朵效果代码

代码语言：html

所属分类：三维

代码描述：three打造一个炫酷多彩三维线条折叠花朵效果代码

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>
html,
body {
  height: 100%;
  width: 100%;
}
body {
  font-size: 62.5%;
  background: #000;
  overflow: hidden;
  color: #fff;
  font-family: sans-serif;
  -ms-scroll-chaining: none;
      overscroll-behavior: none;
}
#loading {
  background: #000;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  visibility: visible;
  opacity: 1;
  transition: visibility 1.6s, opacity 1.6s;
}
#loading .circle {
  width: 50px;
  height: 50px;
  background: #fff;
  border-radius: 50%;
  opacity: 0;
  transform: scale(0, 0);
  -webkit-animation: circle-animation 1.6s ease-in-out 0s infinite normal none;
          animation: circle-animation 1.6s ease-in-out 0s infinite normal none;
}
#loading.loaded {
  visibility: hidden;
  opacity: 0;
}
#container {
  width: 100%;
  height: 100%;
}
/** css animation */
@-webkit-keyframes circle-animation {
  0% {
    opacity: 0;
    transform: scale(0, 0);
  }
  50% {
    opacity: 1;
    transform: scale(1, 1);
  }
}
@keyframes circle-animation {
  0% {
    opacity: 0;
    transform: scale(0, 0);
  }
  50% {
    opacity: 1;
    transform: scale(1, 1);
  }
}
</style>


</head>

<body  >
  <div id="loading">
  <div class="circle"></div>
</div>
<div id="container"></div>


<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/Stats-16.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.126.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/OrbitControls.126.js"></script>
      <script >


/** vertex shader source */
const vertexShader = `
uniform float uTime;
float PI = 3.14159265359;
varying vec3 vPosition;

void main(){
  float num = position.z / 10000.0;
  float len = length(position) * 0.001;
  
  vec3 pos; 
  pos.x = cos(position.x * position.y) * sin(uTime * num) * 1.0;
  pos.y = sin(position.x * position.y) * sin(uTime * num) * 1.0;
  pos.z = tan(uTime + len) * 0.1;
  
  vPosition = pos;
  vec4 mvPosition = modelViewMatrix * vec4(pos, 1.0);
  
  gl_PointSize = 6.0 * (12.0 / - mvPosition.z);
  gl_Position = projectionMatrix * mvPosition;
}

`;

/** fragment shader source */
const fragmentShader = `
varying vec3 vPosition;
uniform float uTime;

/**
 * change colors
 * Referred to
 * https://iquilezles.org/www/articles/palettes/palettes.htm
 * Thank you so much.
 */
vec3 palette( in float t, in vec3 a, in vec3 b, in vec3 c, in vec3 d ) {
  return a + b*cos( 6.28318*(c*t+d) );
}

void main () {
  /**
   * Square to Circle.
   * Referred to
   * https://qiita.com/uma6661/items/20accc9b5fb9845fc73a
   * Thank you so much.
   */
  float f = length(gl_PointCoord - vec2(0.5, 0.5));
  if ( f > 0.1 ) discard;
  
  vec3 color =
    palette(
      length(vPosition) - uTime * 0.5, 
      vec3(0.5,0.5,0.5),
      vec3(0.5,0.5,0.5),
      vec3(1.0,1.0,0.5),
      vec3(0.8,0.90,0.30)
    );
  
  gl_FragColor = vec4(color, 1.0);
}

`;

/**.........完整代码请登录后点击上方下载按钮下载查看