three+gsap实现带音乐三维爱心表白动画效果代码-html代码-BFW代码库

代码语言：html

所属分类：表白

代码描述：three+gsap实现带音乐webgl三维爱心表白动画效果代码，点击爱心播放音乐动画开始。

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">

  <meta name="viewport" content="width=device-width, initial-scale=1">

  
  
  
<style>
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  overflow: hidden;
  background: #16000a;
}
body {
  -webkit-font-smoothing: antialiased;
  color: #ffdada;
}
.webgl {
  position: fixed;
  width: 100vw;
  height: 100vh;
  top: 0;
  left: 0;
  outline: none;
}

body::before {
  content: "";
  position: absolute;
  border: 8px solid;
  inset: 1rem;
  z-index: 100;
  pointer-events: none;
}

h1 {
  position: absolute;
  top: 10vh;
  left: 2.5rem;
  right: 1rem;
  text-align: center;
  font-family: ador-hairline, sans-serif;
  font-weight: 900;
  font-size: max(1rem, 3vh);
}

button {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  height: 12vh;
  width: 12vh;
  transform: translateY(2vh);
  right: 0;
  margin: auto;
  -webkit-appearance: none;
  background: transparent;
  color: inherit;
  border: none;
  cursor: pointer;
}

svg {
  width: 3.5vh;
}
</style>



</head>

<body >
  <canvas class="webgl"></canvas>
<h1>
  With Love
</h1>
<button id="play-music" type="button" aria-label="Play music"><svg fill="currentColor" viewBox="0 0 512 512" width="100" title="music">
    <path d="M470.38 1.51L150.41 96A32 32 0 0 0 128 126.51v261.41A139 139 0 0 0 96 384c-53 0-96 28.66-96 64s43 64 96 64 96-28.66 96-64V214.32l256-75v184.61a138.4 138.4 0 0 0-32-3.93c-53 0-96 28.66-96 64s43 64 96 64 96-28.65 96-64V32a32 32 0 0 0-41.62-30.49z" />
  </svg></button>
<script type="x-shader/x-vertex" id="vertexShader">
  #define M_PI 3.1415926535897932384626433832795
uniform float uTime;
uniform float uSize;
attribute float aScale;
attribute vec3 aColor;
attribute float random;
attribute float random1;
attribute float aSpeed;
varying vec3 vColor;
varying vec2 vUv;

void main() {
  float sign = 2.0* (step(random, 0.5) -.5);
  float t = sign*mod(-uTime *  aSpeed* 0.005  + 10.0*aSpeed*aSpeed, M_PI);
  float a = pow(t, 2.1) * pow((t - sign * M_PI), 2.3);
  float radius = 0.14;
  vec3 myOffset =
      vec3(t,  t, 0.0);
  myOffset = vec3(radius *16.0 * pow(sin(t), 2.0) * sin(t), radius *                                           (13.0 * cos(t) - 5.0 * cos(2.0 * t) - 2.0 * cos(3.0 * t) - cos(4.0 * t)), .15*(a*(random1 - .5))*sin(abs(10.0*(sin(.2*uTime + .2*random)))*t));
  vec3 displacedPosition = myOffset;
  vec4 modelPosition = modelMatrix * vec4(displacedPosition.xyz, 1.0);

  vec4 viewPosition = viewMatrix * modelPosition;
  viewPosition.xyz += position * aScale * uSize * pow(a, .5) * .5;
  gl_Position = projectionMatrix * viewPosition;

  vColor = aColor;
  vUv = uv;
}
</script>

<script type="x-shader/x-fragment" id="fragmentShader">
  varying vec3 vColor;
varying vec2 vUv;

void main() {
  vec2 uv = vUv;
  vec3 color = vColor;
  float strength = distance(uv, vec2(0.5));
  strength *= 2.0;
  strength = 1.0 - strength;
  gl_FragColor = vec4(strength * color, 1.0);
}
</script>
<script type="x-shader/x-vertex" id="vertexShader1">
  #define M_PI 3.1415926535897932384626433832795


uniform float uTime;
uniform float uSize;
attribute float aScale;
attribute vec3 aColor;
attribute float phi;
attribute float random;
attribute float random1;
varying vec3 vColor;
varying vec2 vUv;

void main() {
  float t = 0.01 * uTime + 12.0;
  float angle = phi;
  
  t = mod((-uTime + 100.0) * 0.06* random1 + random *2.0 * M_PI , 2.0 * M_PI);
  vec3 myOffset = vec3(5.85*cos(angle * (t )), 2.0*(t - M_PI), 3.0*sin(angle * (t )/t));
vec4 modelPosition = modelMatrix * vec4(myOffset, 1.0);
  vec4 viewPosition = viewMatrix * modelPosition;
  viewPosition.xyz += position * aScale * uSize;
  gl_Position = projectionMatrix * viewPosition;

  vColor = aColor;
  vUv = uv;
}
</script>

<script type="x-shader/x-fragment" id="fragmentShader1">
  uniform sampler2D uTex;
varying vec3 vColor;
varying vec2 vUv;

void main() {
  vec2 uv = vUv;
  vec3 color = vColor;
  float strength = distance(uv, vec2(0.5, .65));
  strength *= 2.0;
  strength = 1.0 - strength;
  vec3 texture = texture2D(uTex, uv).rgb;
  gl_FragColor = vec4(texture * color * (strength + .3), 1.);
}
</script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.133.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/gsap.3.8.0.js"></script>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/GLTFLoader.133.js"></script>
      <script  >

class World {
  constructor({
    canvas,
    width,
    height,
    cameraPosition,
    fieldOfView = 75,
    nearPlane = 0.1,
    farPlane = 100 })
  {
    this.parameters = {
      count: 1500,
      max: 12.5 * Math.PI,
      a: 2,
      c: 4.5 };

    this.textureLoader = new THREE.TextureLoader();
    this.scene = new THREE.Scene();
    this.scene.background = new THREE.Color(0x16000a);
    this.clock = new THREE.Clock();
    this.data = 0;
    this.time = { current: 0, t0: 0, t1: 0, t: 0, frequency: 0.0005 };
    this.angle = { x: 0, z: 0 };
    this.width = width || window.innerWidth;
    this.height = height || window.innerHeight;
    this.aspectRatio = this.width / this.height;
    this.fieldOfView = fieldOfView;
    this.camera = new THREE.PerspectiveCamera(
    fieldOfView,
    this.aspectRatio,
    nearPlane,
    farPlane);

    this.camera.position.set(
    cameraPosition.x,
    cameraPosition.y,
    cameraPosition.z);

    this.scene.add(this.camera);
    this.renderer = new THREE.WebGLRenderer({
      canvas,
      antialias: true });

    this.pixelRatio = Math.min(window.devicePixelRatio, 2);
    this.renderer.setPixelRatio(this.pixelRatio);
    this.renderer.setSize(this.width, this.height);
    this.timer = 0;
    this.addToScene();
    this.addButton();

    this.render();
    this.listenToResize();
    this.listenToMouseMove();
  }
  start() {}
  render() {
    this.renderer.render(this.scene, this.camera);
    this.composer && this.composer.render();
  }
  loop() {
    this.time.elapsed = this.clock.getElapsedTime();
    this.time.delta = Math.min(
    60,
    (this.time.current - this.time.elapsed) * 1000);

    if (this.analyser && this.isRunning) {
      this.time.t = this.time.elapsed - this.time.t0 + this.time.t1;
      this.data = this.analyser.getAverageFrequency();
      this.data *= this.data / 2000;
      this.angle.x += this.time.delta * 0.001 * 0.63;
      this.angle.z += this.time.delta * 0.001 * 0.39;
      const justFinished = this.isRunning && !this.sound.isPlaying;
      if (justFinished) {
        this.time.t1 = this.time.t;
        this.audioBtn.disabled = false;
        this.isRunning = false;
        const tl = gsap.timeline();
        this.angle.x = 0;
        this.angle.z = 0;
        tl.to(this.camera.position, {
          x: 0,
          z: 4.5,
          duration: 4,
          ease: "expo.in" });

        tl.to(this.audioBtn, {
          opacity: () => 1,
          duration: 1,
          ease: "power1.out" });

      } else {
        this.camera.position.x = Math.sin(this.angle.x) * this.parameters.a;
        this.camera.position.z = Math.min(
        Math.max(Math.cos(this.angle.z) * this.parameters.c, 1.75),
        6.5);

      }
    }
    this.camera.lookAt(this.scene.position);
    if (this.heartMaterial) {
      this.heartMaterial.uniforms.uTime.value +=
      this.time.delta * this.time.frequency * (1 + this.data * 0.2);
    }
    if (this.model) {
      this.model.rotation.y -= 0.0005 * this.time.delta * (1 + this.data);
    }
    if (this.snowMaterial) {
      this.snowMaterial.uniforms.uTime.value +=
      this.time.delta * 0.0004 * (1 + this.data);
    }
    this.render();

    this.time.current = this.time.elapsed;
    requestAnimationFrame(this.loop.bind(this));
  }
  listenToResize() {
    window.addEventListener("resize", () => {
      // Update sizes
      this.width = window.innerWidth;
      this.height = window.innerHeight;

      // Update .........完整代码请登录后点击上方下载按钮下载查看