js+css实现炫酷黑洞粒子动画效果代码-html代码-BFW代码库

js+css实现炫酷黑洞粒子动画效果代码

代码语言：html

所属分类：粒子

代码描述：js+css实现炫酷黑洞粒子动画效果代码

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 {
  width: 100vw;
  height: 100vh;
  background: #141414;
}

a-hole {
  position: absolute;
  top: 0;
  left: 0;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
a-hole:before {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  display: block;
  width: 150%;
  height: 140%;
  background: radial-gradient(ellipse at 50% 55%, transparent 10%, black 50%);
  transform: translate3d(-50%, -50%, 0);
  content: "";
}
a-hole:after {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 5;
  display: block;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 50% 75%, #a900ff 20%, transparent 75%);
  mix-blend-mode: overlay;
  transform: translate3d(-50%, -50%, 0);
  content: "";
}
@-webkit-keyframes aura-glow {
  0% {
    background-position: 0 100%;
  }
  100% {
    background-position: 0 300%;
  }
}
@keyframes aura-glow {
  0% {
    background-position: 0 100%;
  }
  100% {
    background-position: 0 300%;
  }
}
a-hole .aura {
  position: absolute;
  top: -71.5%;
  left: 50%;
  z-index: 3;
  width: 30%;
  height: 140%;
  background: linear-gradient(20deg, #00f8f1, #ffbd1e20 16.5%, #fe848f 33%, #fe848f20 49.5%, #00f8f1 66%, #00f8f160 85.5%, #ffbd1e 100%) 0 100%/100% 200%;
  border-radius: 0 0 100% 100%;
  filter: blur(50px);
  mix-blend-mode: plus-lighter;
  opacity: 0.75;
  transform: translate3d(-50%, 0, 0);
  -webkit-animation: aura-glow 5s infinite linear;
          animation: aura-glow 5s infinite linear;
}
a-hole .overlay {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 10;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(transparent, transparent 1px, white 1px, white 2px);
  mix-blend-mode: overlay;
  opacity: 0.5;
}
a-hole canvas {
  display: block;
  width: 100%;
  height: 100%;
}
</style>

  
  
</head>

<body>


<a-hole>
  <canvas class="js-canvas"></canvas>
  <div class="aura"></div>
  <div class="overlay"></div>
</a-hole><!-- .a-hole -->
  
      <script  type="module">
import easingUtils from "//repo.bfw.wiki/bfwrepo/js/module/easing-utils.mjs";

class AHole extends HTMLElement {
  /**
   * Init
   */
  connectedCallback() {
    // Elements
    this.canvas = this.querySelector(".js-canvas");
    this.ctx = this.canvas.getContext("2d");

    this.discs = [];
    this.lines = [];

    // Init
    this.setSize();
    this.setDiscs();
    this.setLines();
    this.setParticles();

    this.bindEvents();

    // RAF
    requestAnimationFrame(this.tick.bind(this));
  }

  /**
   * Bind events
   */
  bindEvents() {
    window.addEventListener("resize", this.onResize.bind(this));
  }

  /**
   * Resize handler
   */
  onResize() {
    this.setSize();
    this.setDiscs();
    this.setLines();
    this.setParticles();
  }

  /**
   * Set size
   */
  setSize() {
    this.rect = this.getBoundingClientRect();

    this.render = {
      width: this.rect.width,
      height: this.rect.height,
      dpi: window.devicePixelRatio };


    this.canvas.width = this.render.width * this.render.dpi;
    this.canvas.h.........完整代码请登录后点击上方下载按钮下载查看