div+scss实现三维彩球由点汇聚成球动画效果代码-html代码-BFW代码库

代码语言：html

所属分类：动画

代码描述：div+scss实现三维彩球由点汇聚成球动画效果代码

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  type = 'text/scss'>
// global stuff

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

body {
  background: #000;
  overflow: hidden;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;

  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.5rem;

  &:hover .scene {
    scale: 1.2;
  }
}

@mixin visually-hidden() {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  left: -10000px;
}

@mixin centered() {
  display: flex;
  justify-content: center;
  align-items: center;
}

// scene

.scene {
  perspective: 30rem;
  transition: perspective 2s ease-in-out, scale 300ms ease;
  --rotationXstart: -30deg;
  --rotationXend: -30deg;
  position: absolute;
  left: 50%;
  top: 50%;

  * {
    position: absolute;
    transform-style: preserve-3d;
  }

  --radius: min(10rem, 35vw);
}

// sphere

.sphere {
  @include centered();
  animation: rotate-around 20s linear infinite;

  @keyframes rotate-around {
    0% {
      transform: rotateX(var(--rotationXstart)) rotateY(0deg);
    }

    100% {
      transform: rotateX(var(--rotationXend)) rotateY(360deg);
    }
  }
}

// points

$number: 10; // number of latitudes
$turn: 360deg;

.point {
  --size: calc(0.15 * var(--radius));
  width: var(--size);
  aspect-ratio: 1;
  border-radius: 50%;
  --alpha: 0deg;
  --beta: 0deg;
  --hue: 0deg;
  background-color: hsl(var(--hue), 100%, 50%);
  animation: intro 5s ease-in-out forwards;

  @keyframes intro {
    0% {
      transform: rotateX(calc(var(--alpha) * 0)) rotateY(calc(var(--beta) * 0))
        translateZ(var(--radius));
    }
    50% {
      transform: rotateX(calc(var(--alpha) * 0)) rotateY(calc(var(--beta) * 1))
        translateZ(var(--radius));
    }
    100% {
      transform: rotateX(calc(var(--alpha) * 1)) rotateY(calc(var(--beta) * 1))
        translateZ(var(--radius));
    }
  }

  @for $i from 0 to $number {
    @for $j from 0 through $number {
      $index: $i * ($number + 1) + $j + 1;

      $alpha: $i * $turn / $number;
      $beta: $j * 0.5 * $turn / $number - 0.25 * $turn;
      $hue: $j * $turn / ($number + 1);

      &:nth-child(#{$index}) {
        @if (($j == 0 or $j == $number) and $i > 0) {
          display: none;
        } @else {
          --alpha: #{$alpha};
          --beta: #{$beta};
          --hue: #{$j * $turn / ($number + 1)};
        }
      }
    }
  }
}

// controls

label {
  background-color: #555;
  color: #fff;
  padding: 0.5rem 1rem;
  cursor: pointer;
  z-index: 10;
  font-size: 1.125rem;
  border-radius: 0.25rem;
  user-select: none;
  opacity: 0.2;
  transition: opacity 200ms ease, background-color 200ms ease;

  &:hover {
    opacity: 1;
  }
}

input[type="checkbox"] {
  @include visually-hidden();

  &:checked + label {
    background-color: #e63;
  }

  &:focus-visible + label {
    outline: 2px solid #fff;
    opacity: 1;
  }

  &#inside:checked ~ .scene {
    perspective: var(--radius);
  }

  &#rotateX:checked ~ .scene {
    --rotationXend: 330deg;
  }

  &#clouds:checked ~ .scene .point {
    box-shadow: 0 0 calc(2.5 * var(--size)) #fff;
  }
}

</style>

  <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/sass.sync.js"></script>
    <script>
 
     const styleEls = document.querySelectorAll('style');

       styleEls.forEach(styleEl => {
           const type = styleEl.getAttribute('type');

           if (type == 'text/scss') {



               Sass.compile(styleEl.innerHTML, function(result) {
                   if (result.status == 0) {

                       const newStyleEl = document.createElement('style');
                       newStyleEl.textContent = result.text

                       document.head.appendChild(newStyleEl);

                   }
               })
           }
       });

    </script>

  
</head>

<body>
  <input type="checkbox" id="inside" />
<label for="inside">Go inside</label>
<input type="checkbox" id="rotateX" />
<label for="rotateX">Rotate X</label>
<input type="checkbox" id="clouds" />
<label for="clouds">Show clouds</label>

<div class="scene">
  <div class="sphere">
    <div class="point"></div>
    <div class="point"></div>
    <div class="point"></div>
    <div class="point"></div>
    <div class="point"></div>
    <div class="point"></div>
    <div class="point"></div>
    <div class="point"></div>
    <div class="point"></div>
    <div class="point.........完整代码请登录后点击上方下载按钮下载查看