Applying noise to any image for a glitch effect.
Auto-glitches at delayed intervals && on mouseover.
A Pen by Tiffany Rayside on CodePen.
Created
March 16, 2017 03:00
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Save CodeMyUI/7ca203aa4173349bb11c1423a15f63fe to your computer and use it in GitHub Desktop.
Glitchin' Image
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| <div id="img"></div> | |
| <!-- | |
| Glitches by itself && on mouseover | |
| !--> |
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| (function() { | |
| var set = function(x, opts) { | |
| var _pt = [{ | |
| x: 0, | |
| y: 0 | |
| }, { | |
| x: 0, | |
| y: 0 | |
| }, { | |
| x: 0, | |
| y: 0 | |
| }]; | |
| var rnd1 = [Math.random() + 1, Math.random() + 1, Math.random() + 1]; | |
| var rnd2 = [0, 0, 0]; | |
| var cnt = 0; | |
| var arr = []; | |
| var loop = null; | |
| var t = null; | |
| var _h = opts._h; | |
| var _w = opts._w; | |
| var img = opts.img; | |
| var mshov = false; | |
| x.css({ | |
| position: "relative" | |
| }); | |
| for (var i = 0; i < _h; i++) { | |
| var pos = -i + "px"; | |
| x.append("<div></div>"); | |
| x.find("div").eq(i).css({ | |
| backgroundImage: "url(" + img + ")", | |
| backgroundPosition: "0px " + pos, | |
| height: "1px", | |
| width: _w + "px", | |
| position: "absolute", | |
| top: i + "px" | |
| }); | |
| arr.push(x.find("div").eq(i)); | |
| } | |
| if (opts.auto) { | |
| t = setInterval(function() { | |
| if (mshov) return; | |
| go(); | |
| setTimeout(pause, opts.delay / 2 * Math.random()); | |
| }, opts.delay); | |
| } | |
| x.mouseover(go); | |
| x.mouseout(pause); | |
| function go() { | |
| mshov = true; | |
| clearInterval(loop); | |
| loop = setInterval(run, 30); | |
| } | |
| function pause() { | |
| mshov = false; | |
| clearInterval(loop); | |
| loop = null; | |
| for (var i = 0; i < _h; i++) { | |
| arr[i].css({ | |
| left: 0 | |
| }); | |
| } | |
| } | |
| function run() { | |
| var i; | |
| for (i = 0; i < 3; i++) { | |
| if (rnd1[i] >= 1) { | |
| --rnd1[i]; | |
| rnd2[i] = Math.random() / 4 + 0.03; | |
| } | |
| rnd1[i] += rnd2[i]; | |
| cnt += (38 - cnt) * 0.25; | |
| _pt[i].x = Math.ceil(Math.sin(rnd1[i] * Math.PI * 2) * rnd2[i] * cnt * 2); | |
| _pt[i].y = 0; | |
| } | |
| var num = (Math.abs(_pt[0].x) + Math.abs(_pt[1].x) + Math.abs(_pt[2].x) + 8) / 4; | |
| i = _h; | |
| while (i -= 1) { | |
| var _off = Math.sin(i / _h * Math.PI * (Math.random() / 8 + 1)) * 0.8 * num * num; | |
| arr[i].css({ | |
| left: _off + "px " | |
| }); | |
| } | |
| } | |
| }; | |
| jQuery.fn.noisy = function(opts) { | |
| this.each(function() { | |
| opts = jQuery.extend({}, jQuery.fn.noisy.defs, opts); | |
| set(jQuery(this), opts); | |
| }); | |
| }; | |
| jQuery.fn.noisy.defs = { | |
| _h: 0, | |
| _w: 0, | |
| img: "", | |
| auto: true, | |
| delay: 4000 | |
| }; | |
| })(); | |
| /*to see this same image but with its full background use | |
| https://s3-us-west-2.amazonaws.com/s.cdpn.io/131045/noise.jpe | I removed the black image bordering. | |
| Or add any other image of your choice - just be sure to edit the width/height params below. It *should* work with any image. | |
| */ | |
| $(function() { | |
| $("#img").noisy({ | |
| _w: 360, | |
| _h: 350, | |
| img: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/131045/ns2.png" | |
| }); | |
| }); |
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| <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script> |
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| html, | |
| body { | |
| height: 100% | |
| } | |
| body { | |
| background: hsla(260, 95%, 45%, 1); | |
| display: flex; | |
| align-items: center; | |
| justify-content: center; | |
| overflow: hidden; | |
| background-repeat: no-repeat; | |
| background-attachment: fixed; | |
| background-image: linear-gradient(to right top, hsla(0, 5%, 5%, 0.5), hsla(260, 95%, 45%, 1)); | |
| } | |
| div#img { | |
| height: 400px; | |
| width: 300px; | |
| cursor: pointer; | |
| } |
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