各种效果的“拍框”式LOADING动效

用GSAP和实现各种动效

GSAP

《three.js如何实现贴图模糊效果 - 使用canvas》申请公开！

第三方库
作品简介 2025
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HTML
CSS
JavaScript
Result

编译

JavaScript

preloaderTL = new TimelineMax();

// Variables
var boxes = $('.sq-box'),
    squareFills = $('.sq-fill'),
    xMin = 10,
    xMax = 200,
    yMin = 150,
    yMax = 200,
    randomX, labelTime, $currentFill, timeline = {};
TweenMax.set(squareFills, {
    y: "104%"
});

function initPreloader(easeOption) {
    boxes.each(function(index, element) {
        if ((index % 2) == 0) {
            randomX = randomInt(-xMax, -xMin);
        } else {
            randomX = randomInt(xMin, xMax);
        }

labelTime = index * 0.75;
        var $currentFill = $(this).find('.sq-fill');

// create a new timeline which repeats itself
        timeline["sven-" + index] = new TimelineMax({
            repeat: -1,
            repeatDelay: 0.75,
            yoyo: false
        })

// Animation starts here
        timeline["sven-" + index].to($currentFill, 0.75, {
            y: "0%",
            backgroundColor: "rgb(255, 2, 2)"
        });
        timeline["sven-" + index].to($(this), 3, {
            rotation: 720,
            opacity: 0,
            x: randomX + "px",
            y: randomInt(-yMax, -yMin) + "px",
            ease: easeOption
        });
        preloaderTL.add(timeline["sven-" + index], labelTime);
    });
}

function changeEase(customEase) {
    preloaderTL.pause(0);
    preloaderTL.clear();
    initPreloader(customEase);
    preloaderTL.restart();
}

changeEase(Linear.easeNone);

$('select').on('change', function(e) {
    var optionSelected = $("option:selected", this);
    var valueSelected = parseEase(this.value);
    changeEase(valueSelected);
});

// can be used for animating x, y, rotation and other simple operations
function randomInt(min, max) {
    return Math.floor(Math.random() * (max - min + 1) + min);
}

// can be used for animating scale, opacity and other simple math operations
function randomFloat(min, max) {
    return (Math.random() * (max - min) + min).toFixed(1);
}

/****************************************************************
Parse ease string
****************************************************************/
function parseEase(string) {
    var easing = string.split(".");
    if (easing.length === 2) return window[easing[0]][easing[1]];
    var cfgExp = /true|false|(-?\d*\.?\d*(?:e[\-+]?\d+)?)[0-9]/ig;
    var config = string.match(cfgExp).map(JSON.parse);
    return window[easing[0]][easing[1]].config.apply(null, config);
}

//TweenMax.delayedCall(5, showCredits, []);
TweenMax.delayedCall(1, showEaseOptions, []);

function showCredits() {
    $('.credits').show();
}

function showEaseOptions() {
    $('.easeOptions').show();
}

编译

CSS

body {
    background: none #000;
}
.abs-center {
    position: absolute;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    /* IE 9 */
    
    -webkit-transform: translate(-50%, -50%);
    /* Safari */
    
    -moz-transform: translate(-50%, -50%);
    /* Firefox Older versions*/
    
    -o-transform: translate(-50%, -50%);
    /* Opera */
    
    transform: translate(-50%, -50%);
}
/* box fall preloader */

.sq-wrapper {
    display: inline-block;
    position: relative;
    width: 1em;
    height: 1em;
    text-align: center;
}
.sq-box {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: none transparent;
    overflow: hidden;
}
.sq-fill {
    background: none #FD4401;
    width: 100%;
    height: 100%;
}
.loader > div::after {
    content: "LOADING ASSETS";
    position: absolute;
    white-space: nowrap;
    top: 2.25em;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.6;
    letter-spacing: 0.125em;
    font-size: 1.075em;
    color: #fff;
    font-family: 'Dosis', sans-serif;
}
.credits {
    position: absolute;
    left: 1%;
    bottom: 2%;
    color: #41365C;
    display: none;
    overflow: hidden;
}
a {
    color: #41365C !important;
    margin-left: -6px;
}
.easeOptions {
    position: absolute;
    top: 2%;
    right: 2%;
}
select {
    background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='50px' height='50px'><polyline points='46.139,15.518 25.166,36.49 4.193,15.519'/></svg>");
    background-color: #F5BA31;
    background-repeat: no-repeat;
    background-position: right 10px top 15px;
    background-size: 16px 16px;
    color: white;
    padding: 12px;
    width: auto;
    font-family: arial, tahoma;
    font-size: 16px;
    font-weight: bold;
    color: #FFF;
    text-align: center;
    text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
    border-radius: 3px;
    -webkit-border-radius: 3px;
    -webkit-appearance: none;
    border: 0;
    outline: 0;
    -webkit-transition: 0.3s ease all;
    -moz-transition: 0.3s ease all;
    -ms-transition: 0.3s ease all;
    -o-transition: 0.3s ease all;
    transition: 0.3s ease all;
}
.easeOptions {
    display: none;
}
#green {
    background-color: #0A71A0;
}
#green:hover {
    background-color: #0A71A0;
}
select:focus,
select:active {
    border: 0;
    outline: 0;
}

HTML

<div class="easeOptions">
    <select id="green">
        <optgroup label="EaseOptions">
            <option>Back.easeIn</option>
            <option selected="selected">Linear.easeNone</option>
            <option>SlowMo.ease</option>
            <option>Expo.easeIn</option>
            <option>Bounce.easeIn</option>
            <option>Elastic.easeOut</option>
            <option>Expo.easeOut</option>
            <option>Bounce.easeOut</option>
            <option>Bounce.easeInOut</option>
            <option>Back.easeInOut</option>
            <option>Expo.easeInOut</option>
            <option>Elastic.easeInOut</option>
        </optgroup>
    </select>
</div>

用GSAP和实现各种动效

GSAP

编辑器支持Emmet

快捷键

用GSAP和实现各种动效

GSAP

GSAP 水珠融合分解式的LOADING动效

GSAP+SVG 有渐变动效的LOADING加载动画

编辑器支持Emmet

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