css+js实现鼠标跟随3d交互效果（原锤子官网banner交互）

# vue # js # css

Saturday , 2024-9-14 21:36

B站视频链接

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<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>前进，不择手段的前进!</title>
    <style>
        body,html{
            margin: 0 0;
            padding: 0 0;
        }
        body{
            height: 100vh;
            width: 100vw;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        #imgGroup{
            width: 50vw;
            height: 50vh;
            border-radius: 10px;
            box-shadow: 0px 0px 35px rgba(133, 133, 133, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('./bg.webp') no-repeat;
            background-size: cover;
            transition: all 0.3s;
            will-change: transform;
        }
        #text{
          font-size: 3.5vw;
          font-weight: bold;
          color: white;
          text-shadow: 0px 0px 10px rgba(0, 0, 0, 1);
          transition: all 0.3s;
          will-change: transform;
        }
    </style>
</head>
<body>
    <div id="imgGroup">
        <div id="text">前进，不择手段的前进!</div>
    </div>
</body>

<script type="text/javascript">
    
// 图片的交互效果
const imgGroupDom = document.getElementById('imgGroup');
const textDom = document.getElementById('text');

/*
x：元素的左边距离视口左边界的距离（左边界为0）。
y：元素的上边距离视口上边界的距离（上边界为0）。
width：元素的宽度。
height：元素的高度。
top：元素上边界相对于视口上边界的距离。
right：元素右边界相对于视口左边界的距离。
bottom：元素下边界相对于视口上边界的距离。
left：元素左边界相对于视口左边界的距离。
*/

imgGroupDom.addEventListener('mousemove', e => {
  const rect = imgGroup.getBoundingClientRect();//主容器相对可视区域的距离
  const mouseX = e.clientX -  rect.left;//计算相对于距离
  const mouseY = e.clientY - rect.top;
  const centerX = rect.width / 2;//计算中心点距离
  const centerY = rect.height / 2;
  const rotateY = (mouseY - centerY) / 50;//放慢倍率
  const rotateX = (mouseX - centerX) / 80;
  console.log('rect==>',rect);
  console.log('e==>',e);
  console.log('offset==>',imgGroup.offsetWidth,imgGroup.offsetHeight)
  const scale = 1.05;
  imgGroupDom.style.transform = `perspective(1000px) rotateX(${-rotateY}deg) rotateY(${rotateX}deg) scale(${scale})`;
  imgGroupDom.style.boxShadow = `${-rotateX*10}px ${-rotateY*10}px 35px rgba(133, 133, 133, 0.5)`;
  textDom.style.transform = `perspective(1000px) rotateX(${-rotateY*1.2}deg) rotateY(${rotateX*1.2}deg) translate3d(${-rotateX*1.2}px, 0px, 0px) scale(${scale*1.05})`;
});

// 鼠标离开后恢复
imgGroup.addEventListener('mouseleave', () => {
  imgGroupDom.style.transform = ``;
  imgGroupDom.style.boxShadow = ``;
  textDom.style.transform = ``;
});
</script>
</html>