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bilibili秋景深对焦特效.html
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<!DOCTYPE html>
<html lang="en">
<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>Document</title>
<style>
body {
margin: 0;
}
header {
height: 160px;
position: relative;
overflow: hidden;
}
header>div {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
--offect: 0px;
--blur: 2px;
}
header>div>img {
display: block;
width: 110%;
height: 100%;
object-fit: cover;
transform: translateX(var(--offset));
filter: blur(var(--blur));
}
</style>
</head>
<body>
<header>
<div><img src="./assets/bilibili-autumn-1.png" alt=""></div>
<div><img src="./assets/bilibili-autumn-2.png" alt=""></div>
<div><img src="./assets/bilibili-autumn-3.webp" alt=""></div>
<div><img src="./assets/bilibili-autumn-4.webp" alt=""></div>
<div><img src="./assets/bilibili-autumn-5.webp" alt=""></div>
<div><img src="./assets/bilibili-autumn-6.webp" alt=""></div>
</header>
<script>
const images = document.querySelectorAll('header > div > img');
document.querySelector('header').addEventListener('mousemove', (e) => {
// 鼠标相对图片移动的百分比
let percentage = e.clientX / window.outerWidth;
// 分层图片的水平偏移量
let offset = 10 * percentage;
// 模糊度
let blur = 20;
for (let [index, image] of images.entries()) {
// 越靠后的图层水平偏移量越大
offset *= 1.3;
// 分层模糊度计算公式 y=(x^2)*20
let blurValue = Math.pow((index / images.length - percentage), 2) * blur;
image.style.setProperty('--offset', `${offset}px`);
image.style.setProperty('--blur', `${blurValue}px`);
}
})
</script>
</body>
</html>