three实现光环光芒变动音乐可视化效果代码-html代码-BFW代码库

three实现光环光芒变动音乐可视化效果代码

代码语言：html

所属分类：动画

代码描述：three实现光环光芒变动音乐可视化效果代码

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>
* {
    margin: 0;
    padding: 0;
  }
  
  html {
    height: 100%;
    background-color: #FFF; 
  }
  
  body {  
    margin: 0;
    height: 100%;
    font-family: 'Noto Sans JP', sans-serif;
    height: 10000px;
  }

  #myCanvas {
    overflow: hidden;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;  
  }
  #myCanvas canvas {  
    display: block;
    width: 100%;
    height: 100%;
  }

  #overlay {
    position: absolute;
    z-index: 1;
    top: 0;
    left: 0;
    width: 100%;
    height:100%;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 1;
    background-color: #000000;
    color: #ffffff;
  }

  p{
    color: #ffffff;
  }

  .link{
    color: #000;
    background: #FFF;
    mix-blend-mode: exclusion;
  font-size: 12px;
  position: absolute;
  left: 10px;
  bottom: 10px;
  }

  .link a{
    text-decoration: underline;
    font-size: 10px;
      color: #000;

  }
</style>


<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.88.js"></script>

</head>

<body  >

  <div id="overlay">
    <p>Play</p>
  </div>

  
  <div id="myCanvas"></div>



  <script id="fragmentShader" type="x-shader/x-fragment">
    varying vec2 vUv;
    uniform vec2 u_resolution;
    uniform float u_time;
    uniform vec2 u_mouse;
    uniform float u_radius;
    uniform float u_scrollY;

    uniform float u_volume;

    uniform sampler2D uTex;

    float random (in float x) {
      return fract(sin(x)*1e4);
    }
    float random (vec2 st) {
      return fract(sin(dot(st.xy,
                            vec2(12.9898,78.233)))*
          43758.5453123);
    }
    

    void main() {

      //https://qiita.com/watabo_shi/items/2fc671f2147e799787f9
      /************************/
      vec2 imageResolution = vec2(1024.0, 1024.0);


      /************************/
      vec2 ratio = vec2(
        min((u_resolution.x / u_resolution.y) / (imageResolution.x / imageResolution.y), 1.0),
        min((u_resolution.y / u_resolution.x) / (imageResolution.y / imageResolution.x), 1.0)
      );
      vec2 uv = vec2(
          vUv.x * ratio.x + (1.0 - ratio.x) * 0.5,
          vUv.y * ratio.y + (1.0 - ratio.y) * 0.5
      );

      float d = dot(uv,uv);
      float a = atan(uv.y,uv.x);

      float aspect = u_resolution.x / u_resolution.y;

      vec2 center = vec2( u_mouse.x, u_mouse.y );
      float radius = u_volume+(center.x+center.y)*0.001;
      float r =  u_volume+(center.x+center.y)*(0.5+u_volume);
      float lightness = radius / length( uv - center );
      vec3 light = vec3(0.0);
      for(int j = 0; j < 3; j++){
        for(int i=0; i < 5; i++){
          light[j] += radius / abs(fract(float(r) - float(j*j)*0.01) - length(uv - center) + random(uv+u_time)*u_volume*2.0);
        }
      }
      vec3 color = vec3(random(uv*u_time*d)*0.2, -uv.x*uv.y*d, uv.x*uv.y);      
      //vec3 color = texture2D( uTex, uv).rgb;       
      gl_FragColor = vec4( color+light, 1.0 );
    }
  </script>
  
  <script id="vertexShader" type="x-shader/x-vertex">  
    varying vec2 vUv;
    void main() {
      vUv = uv;
      gl_Position = vec4( position, 1.0 );
    }
  </script>
  

  
      <script  >
class Audio {
  constructor(soundUrl) {

    this.listener = new THREE.AudioListener();
    const audio = new THREE.Audio(this.listener);
    this.xhr = 0;

    this.audioLoader = new THREE.AudioLoader();
    this.audioLoader.load(soundUrl,
    function (buffer) {
      audio.setBuffer(buffer);
      audio.setLoop(true);
      audio.setVolume(1.0);
    },
    // onProgress callback
    function (xhr) {
      if (xhr.loaded / xhr.total * 100 === 100) {
        setTimeout(() => {
          document.getElementById('overlay').style.display = "block";
        }, 1000);
      } else {}
    },
    // onError callback
    function (err) {
      console.log('An error happened');
    });

    this.soundPlay = () => {
      audio.play();
    };
    this.analyser = [];
    this.analyser = new THREE.AudioAnalyser(audio, 256);
  }

  update() {
    .........完整代码请登录后点击上方下载按钮下载查看