若隐若现的芯片

先看效果：

再看代码：

DOCTYPE html>
html lang="en">
head>
    meta charset="UTF-8">
    title>若隐若现的芯片title>
    script src="https://unpkg.co/gsap@3/dist/gsap.min.js">script>
    style>
        body {
            background-color: #000000;
            overflow: hidden;
            text-align:center;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        body,
        html {
            height: 100%;
            width: 100%;
            margin: 0;
            padding: 0;
        }

        svg {
            width: 100%;
            height: 100%;
            visibility: hidden;

        }

        .ell, #ai {
            fill: none;
        }
    style>
head>
body>
svg id="mainSVG" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 600">
    defs>

        linearGradient id="aiGrad" x1="513.98" y1="290" x2="479.72" y2="320" gradientUnits="userSpaceOnUse">
            stop offset="0" stop-color="#000" stop-opacity="0" />
            stop offset=".15" stop-color="#EF476F" />
            stop offset=".4" stop-color="#359eee" />
            stop offset=".6" stop-color="#03cea4" />
            stop offset=".78" stop-color="#FFC43D" />
            stop offset="1" stop-color="#000" stop-opacity="0" />
        linearGradient>

    defs>

    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    ellipse class="ell" cx="400" cy="300" rx="80" ry="80" />
    path id="ai" opacity=0.85 d="m417.17,323.85h-34.34c-3.69,0-6.67-2.99-6.67-6.67v-34.34c0-3.69,2.99-6.67,6.67-6.67h34.34c3.69,0,6.67,2.99,6.67,6.67v34.34c0,3.69-2.99,6.67-6.67,6.67Zm-5.25-12.92v-21.85c0-.55-.45-1-1-1h-21.85c-.55,0-1,.45-1,1v21.85c0,.55.45,1,1,1h21.85c.55,0,1-.45,1-1Zm23.08-16.29h-11.15m-47.69,0h-11.15m70,10.73h-11.15m-47.69,0h-11.15m40.37,29.63v-11.15m0-47.69v-11.15m-10.73,70v-11.15m0-47.69v-11.15" stroke="url(#aiGrad)" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" />
svg>
body>
script>
    gsap.config({trialWarn: false});
    let select = s => document.querySelector(s),
        toArray = s => gsap.utils.toArray(s),
        mainSVG = select('#mainSVG'),
        allEll = toArray('.ell'),
        colorArr = ['#359EEE', '#FFC43D','#EF476F','#03CEA4']

    let colorInterp = gsap.utils.interpolate(colorArr);

    gsap.set(mainSVG, {
        visibility: 'visible'
    })

    function animate (el, count) {
        let tl = gsap.timeline({
            defaults: {
                ease: 'sine.inOut'
            },
            repeat: -1
        });
        gsap.set(el, {
            opacity:1- count/(allEll.length),
            stroke: colorInterp(count/(allEll.length))
        })

        tl.to(el, {
            attr: {
                ry: `-=${count*2.3}`,
                rx: `+=${count*1.4}`
            },
            ease: 'sine.in'
        })
            .to(el, {
                attr: {
                    ry: `+=${count*2.3}`,
                    rx: `-=${count*1.4}`
                },
                ease: 'sine'
            })
            .to(el, {
                duration: 1,
                rotation: -180,
                transformOrigin: '50% 50%'
            }, 0).timeScale(0.5)
    }
    allEll.forEach((c, i) => {
        gsap.delayedCall(i/(allEll.length-1), animate, [c, i+1])
    })
    gsap.to('#aiGrad', {
        duration: 4,
        delay: 0.75,
        attr: {
            x1: '-=300',
            x2: '-=300'
        },
        scale: 1.2,
        transformOrigin: '50% 50%',
        repeat: -1,
        ease: 'none'
    })
    gsap.to('#ai', {
        duration: 1,
        scale: 1.1,
        transformOrigin: '50% 50%',
        repeat: -1,
        yoyo: true,
        ease: 'sine.inOut'
    })

script>
html>

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前言 大家好！我是sum墨，一个一线的底层码农，平时喜欢研究和思考一些技术相关的问题并整理成文，限于本人水平，如果文章和代码有表述不当之处，还请不吝赐教。 作为一名从业已达六年的老码农，我的工作主要是开发后端Java业务系统，包括各种管理后台和小程序等。在这些…