How to create a sphere in css?

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臣服心动
臣服心动 2020-12-29 12:27

I have trying to create a 3D sphere using just pure css, but I\'ve been unable to generate the shape required. I\'ve seen a cylinder but I can\'t find any reference to creat

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5条回答
  • 2020-12-29 13:01

    You might want to use 3D rotated circles:

    This uses rotated circles to look like a spherical grid. the lesser no. of elements, the better performance.

    Some elements have been rotated in X axis, and others in Y axis. I have filled different colours to show this:

    #cont {
      perspective: 10000px;
      transform-style: preserve-3d;
      -webkit-animation: rotat 1s linear infinite;
      animation: rotat 10s linear infinite;
      transform-origin: 50% 50% 50%;
    }
    .circ {
      height: 200px;
      width: 200px;
      border: 2px solid black;
      border-radius: 50%;
      position: absolute;
      top: 50px;
      left: 50%;
      margin-left: -100px;
      transform-origin: 50%;
      transform-style: preserve-3d;
      background: orange;
    }
    .circ:nth-child(1) {
      transform: rotateX(0deg);
    }
    .circ:nth-child(2) {
      transform: rotateX(30deg);
    }
    .circ:nth-child(3) {
      transform: rotateX(60deg);
    }
    .circ:nth-child(4) {
      transform: rotateX(90deg);
    }
    .circ:nth-child(5) {
      transform: rotateX(120deg);
    }
    .circ:nth-child(6) {
      transform: rotateX(150deg);
    }
    .circ:nth-child(7) {
      transform: rotateX(180deg);
    }
    /*other side rotated*/
    
    .circ:nth-child(8) {
      transform: rotateY(30deg);
    }
    .circ:nth-child(9) {
      transform: rotateY(60deg);
    }
    .circ:nth-child(10) {
      transform: rotateY(90deg);
    }
    .circ:nth-child(11) {
      transform: rotateY(120deg);
    }
    .circ:nth-child(12) {
      transform: rotateY(150deg);
    }
    .circ:nth-child(13) {
      transform: rotateY(180deg);
    }
    .oth {
      background: crimson;
    }
    @-webkit-keyframes rotat {
      0% {
        -webkit-transform: rotateY(0deg) translateX(0);
      }
      100% {
        -webkit-transform: rotateY(360deg);
      }
    }
    @keyframes rotat {
      0% {
        transform: rotateY(0deg);
      }
      100% {
        transform: rotateY(360deg);
      }
    }
    <div id="cont">
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <!--rotated other side-->
      <div class="circ oth"></div>
      <div class="circ oth"></div>
      <div class="circ oth"></div>
      <div class="circ oth"></div>
      <div class="circ oth"></div>
      <div class="circ oth"></div>
    </div>

    You can also rotate some elements in Z direction, but that will make it even more buggy. Now if you fill the same colours in circles, it almost looks like a sphere:

    #cont {
      perspective: 10000px;
      transform-style: preserve-3d;
      -webkit-animation: rotat 1s linear infinite;
      animation: rotat 10s linear infinite;
      transform-origin: 50% 50% 50%;
    }
    .circ {
      height: 200px;
      width: 200px;
      border: 2px solid black;
      border-radius: 50%;
      position: absolute;
      top: 50px;
      left: 50%;
      margin-left: -100px;
      transform-origin: 50%;
      transform-style: preserve-3d;
      background: crimson;
    }
    .circ:nth-child(1) {
      transform: rotateX(0deg);
    }
    .circ:nth-child(2) {
      transform: rotateX(30deg);
    }
    .circ:nth-child(3) {
      transform: rotateX(60deg);
    }
    .circ:nth-child(4) {
      transform: rotateX(90deg);
    }
    .circ:nth-child(5) {
      transform: rotateX(120deg);
    }
    .circ:nth-child(6) {
      transform: rotateX(150deg);
    }
    .circ:nth-child(7) {
      transform: rotateX(180deg);
    }
    /*other side rotated*/
    
    .circ:nth-child(8) {
      transform: rotateY(30deg);
    }
    .circ:nth-child(9) {
      transform: rotateY(60deg);
    }
    .circ:nth-child(10) {
      transform: rotateY(90deg);
    }
    .circ:nth-child(11) {
      transform: rotateY(120deg);
    }
    .circ:nth-child(12) {
      transform: rotateY(150deg);
    }
    .circ:nth-child(13) {
      transform: rotateY(180deg);
    }
    .o {
      border: none;
    }
    @-webkit-keyframes rotat {
      0% {
        -webkit-transform: rotateY(0deg);
      }
      100% {
        -webkit-transform: rotateY(360deg);
      }
    }
    @keyframes rotat {
      0% {
        transform: rotateY(0deg);
      }
      100% {
        transform: rotateY(360deg);
      }
    }
    <div id="cont">
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <!--rotated other side-->
      <div class="circ o"></div>
      <div class="circ o"></div>
      <div class="circ o"></div>
      <div class="circ o"></div>
      <div class="circ o"></div>
      <div class="circ o"></div>
    </div>

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  • 2020-12-29 13:02

    The below answer is not an actual 3D shape. It only gives a slight illusion of being 3D, however, depending on your use case, you may be able to 'fake' it:

    html,body{margin:0;padding:0;background:#222;}
    div{
        height:300px;
        width:300px;
        background:url(http://lorempixel.com/300/300);
        border-radius:50%;
        animation:spin 3s linear infinite;
        transform:rotate(-15deg);
        position:relative;
    }
    div:before{
        content:"";
        position:absolute;
        bottom:-50px;
        border-radius:50%;
        left:0;
        height:10%;
        width:100%;
        transform:rotate(15deg);
        background:rgba(0,0,0,0.6);
        box-shadow: 0 0 10px 2px rgba(0,0,0,0.6);
        
    }
    div:after{
        content:"";
        position:absolute;z-index:12;
        top:0;left:0;height:100%;width:100%;border-radius:50%;
    box-shadow:inset -20px -20px 20px 2px #222, inset 20px 20px 20px 5px rgba(200,200,200,0.4);    
    }
    @keyframes spin{
        to{background-position:-300px 0;}
    }
    <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
    <div></div>

    It's animating the background-position of the div, and by using box shadows, you could 'mimic' the shadowing of a 3D shape.

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  • 2020-12-29 13:07

    I use JavaScript to build the sphere which formed by many div elements. To maintain the browser performance, the div elements are made as little as possible.

    var DIAMETER = 200;
    var CELLS_PER_CIRCLE = 26;
    var IMG_CELL = 'https://sites.google.com/site/zulnasibu/sphere/earth.png';
    var NAME = 'sphere';
    var WRAP = NAME + '-wrapper';
    var _cssRules = '';
    var _cellW;
    var _cellAmount = 0;
    var _imgW;
    var _imgH;
    
    function createFace(w, h, rx, ry, tz, ts, tsx, tsy, cname) {
    	var face = document.createElement("div");
    	var css;
    	var cssText =
    		'width: ' + w.toFixed(2) + 'px;' +
    		'height: ' + h.toFixed(2) + 'px;' +
    		'margin-left: ' + (-w / 2).toFixed(2) + 'px;' +
    		'margin-top: ' + (-h / 2).toFixed(2) + 'px;' +
    		'background: url("' + ts + '") ' + tsx.toFixed(2) + 'px ' + tsy.toFixed(2) + 'px;';
    	css = 'transform: rotateY(' + ry.toFixed(2) + 'rad) rotateX(' + rx.toFixed(2) + 'rad) translateZ(' + tz.toFixed(2) + 'px);';
    	cssText += addVendorPrefix(css);
    	face.className = cname;
    	face.style.cssText = cssText;
    	return face;
    }
    
    function createModel() {
    	var wrap = document.createElement("div");
    	var model = document.createElement("div");
    	wrap.className = WRAP;
    	model.className = NAME;
    	if (CELLS_PER_CIRCLE % 2 != 0) CELLS_PER_CIRCLE++;
    	if (CELLS_PER_CIRCLE < 4) CELLS_PER_CIRCLE = 4;
    	var baseAngle = Math.PI / CELLS_PER_CIRCLE;
    	var cellAngle = 2 * baseAngle;
    	_cellW = DIAMETER * Math.tan(baseAngle);
    	_imgW = _cellW * CELLS_PER_CIRCLE;
    	_imgH = CELLS_PER_CIRCLE / 2;
    	if (CELLS_PER_CIRCLE % 4 == 0) _imgH++;
    	_imgH *= _cellW;
    	var xc = Math.ceil(CELLS_PER_CIRCLE / -4);
    	var yc, rx, ry, tx, ty = -_imgH, tw, cang, cdia, cw;
    	for (var x = xc; x <= -xc; x++) {
    		rx = x * cellAngle;
    		cw = _cellW;
    		yc = CELLS_PER_CIRCLE;
    		if (Math.abs(rx) == Math.PI / 2)
    			yc = 1;
    		else if (Math.abs(x) != 1) {
    			cang = rx - Math.sign(x) * cellAngle / 2;
    			cdia = DIAMETER * Math.cos(cang);
    			cw = cdia * Math.tan(baseAngle);
    		}
    		_cellAmount += yc;
    		tw = cw * yc;
    		tx = (tw - _imgW) / 2;
    		ty += _cellW;
    		for (var y = 0; y < yc; y++) {
    			ry = y * cellAngle;
    			model.appendChild(createFace(cw + 1, _cellW + 1, rx, ry, DIAMETER / 2, IMG_CELL, tx, ty, 'cell' + x.toString() + y.toString()));
    			tx -= cw;
    		}
    	}
    	wrap.appendChild(model);
    	var style = document.createElement('style');
    	style.type = 'text/css';
    	if (style.styleSheet)
    		style.styleSheet.cssText = _cssRules;
    	else
    		style.innerHTML = _cssRules;
    	document.head.appendChild(style);
    	return wrap;
    }
    
    function addVendorPrefix(property) {
    	return	'-webkit-' + property +
    			'-moz-' + property +
    			'-o-' + property +
    			property;
    }
    
    function showGeometry(elm) {
    	if (elm.checked)
    		document.querySelector('.sphere').classList.add('show-geometry');
    	else
    		document.querySelector('.sphere').classList.remove('show-geometry');
    }
    
    document.body.appendChild(createModel());
    .sphere-wrapper {
    	position: absolute;
    	top: 50%;
    	left: 50%;
    	-webkit-perspective: 1000px;
    	-moz-perspective: 1000px;
    	-o-perspective: 1000px;
    	perspective: 1000px;
    }
    .sphere {
    	position: absolute;
    	-webkit-transform-style: preserve-3d;
    	-moz-transform-style: preserve-3d;
    	-o-transform-style: preserve-3d;
    	transform-style: preserve-3d;
    	-webkit-transform-origin: center center -100px;
    	-moz-transform-origin: center center -100px;
    	-o-transform-origin: center center -100px;
    	transform-origin: center center -100px;
    	-webkit-animation: spin 60s infinite linear;
    	-moz-animation: spin 60s infinite linear;
    	-o-animation: spin 60s infinite linear;
    	animation: spin 60s infinite linear;
    }
    .sphere div {
    	position: absolute;
    	-webkit-backface-visibility: hidden;
    	-moz-backface-visibility: hidden;
    	-o-backface-visibility: hidden;
    	backface-visibility: hidden;
    }
    @-webkit-keyframes spin {
    	010.00% {-webkit-transform: rotateX(   0deg) rotateY( 360deg) rotateZ(   0deg);}
    	020.00% {-webkit-transform: rotateX( 360deg) rotateY( 360deg) rotateZ(   0deg);}
    	030.00% {-webkit-transform: rotateX( 720deg) rotateY( 720deg) rotateZ(   0deg);}
    	100.00% {-webkit-transform: rotateX(2880deg) rotateY(3240deg) rotateZ(2520deg);}
    }
    @-moz-keyframes spin {
    	010.00% {-moz-transform: rotateX(   0deg) rotateY( 360deg) rotateZ(   0deg);}
    	020.00% {-moz-transform: rotateX( 360deg) rotateY( 360deg) rotateZ(   0deg);}
    	030.00% {-moz-transform: rotateX( 720deg) rotateY( 720deg) rotateZ(   0deg);}
    	100.00% {-moz-transform: rotateX(2880deg) rotateY(3240deg) rotateZ(2520deg);}
    }
    @-o-keyframes spin {
    	010.00% {-o-transform: rotateX(   0deg) rotateY( 360deg) rotateZ(   0deg);}
    	020.00% {-o-transform: rotateX( 360deg) rotateY( 360deg) rotateZ(   0deg);}
    	030.00% {-o-transform: rotateX( 720deg) rotateY( 720deg) rotateZ(   0deg);}
    	100.00% {-o-transform: rotateX(2880deg) rotateY(3240deg) rotateZ(2520deg);}
    }
    @keyframes spin {
    	010.00% {transform: rotateX(   0deg) rotateY( 360deg) rotateZ(   0deg);}
    	020.00% {transform: rotateX( 360deg) rotateY( 360deg) rotateZ(   0deg);}
    	030.00% {transform: rotateX( 720deg) rotateY( 720deg) rotateZ(   0deg);}
    	100.00% {transform: rotateX(2880deg) rotateY(3240deg) rotateZ(2520deg);}
    }
    input, input~ label {
    	cursor: pointer;
    }
    input:checked~ label {
    	color: #f77;
    }
    .show-geometry div {
    	background: rgba(160, 160, 160, 0.5) !important;
    	border: 1px solid #333;
    	-webkit-backface-visibility: visible;
    	-moz-backface-visibility: visible;
    	-o-backface-visibility: visible;
    	backface-visibility: visible;
    }
    <input id="show-geometry" type="checkbox" onchange="showGeometry(this);">
    <label for="show-geometry">Show geometry</label>

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  • 2020-12-29 13:23

    #cont {
      perspective: 10000px;
      transform-style: preserve-3d;
      -webkit-animation: rotat 1s linear infinite;
      animation: rotat 10s linear infinite;
      transform-origin: 50% 50% 50%;
    }
    .circ {
      height: 200px;
      width: 200px;
      border: 2px solid black;
      border-radius: 50%;
      position: absolute;
      top: 50px;
      left: 50%;
      margin-left: -100px;
      transform-origin: 50%;
      transform-style: preserve-3d;
      background: orange;
    }
    .circ:nth-child(1) {
      transform: rotateX(0deg);
    }
    .circ:nth-child(2) {
      transform: rotateX(30deg);
    }
    .circ:nth-child(3) {
      transform: rotateX(60deg);
    }
    .circ:nth-child(4) {
      transform: rotateX(90deg);
    }
    .circ:nth-child(5) {
      transform: rotateX(120deg);
    }
    .circ:nth-child(6) {
      transform: rotateX(150deg);
    }
    .circ:nth-child(7) {
      transform: rotateX(180deg);
    }
    /*other side rotated*/
    
    .circ:nth-child(8) {
      transform: rotateY(30deg);
    }
    .circ:nth-child(9) {
      transform: rotateY(60deg);
    }
    .circ:nth-child(10) {
      transform: rotateY(90deg);
    }
    .circ:nth-child(11) {
      transform: rotateY(120deg);
    }
    .circ:nth-child(12) {
      transform: rotateY(150deg);
    }
    .circ:nth-child(13) {
      transform: rotateY(180deg);
    }
    .oth {
      background: crimson;
    }
    @-webkit-keyframes rotat {
      0% {
        -webkit-transform: rotateY(0deg) translateX(0);
      }
      100% {
        -webkit-transform: rotateY(360deg);
      }
    }
    @keyframes rotat {
      0% {
        transform: rotateY(0deg);
      }
      100% {
        transform: rotateY(360deg);
      }
    }
    <div id="cont">
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <!--rotated other side-->
      <div class="circ oth"></div>
      <div class="circ oth"></div>
      <div class="circ oth"></div>
      <div class="circ oth"></div>
      <div class="circ oth"></div>
      <div class="circ oth"></div>
    </div>

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  • 2020-12-29 13:25

    Sphere like shape

    There is no actual 3D shapes in html5
    But you can stack 2D shapes on top of each other.
    With this in mind you can create pretty a close representation of a sphere.

    .container {
      perspective: 1000px;
      //transform-style: preserve-3d;
      width: 300px;
      height: 300px;
      border: 5px solid pink;
    }
    .circ {
      transform-style: preserve-3d;
      border: 5px solid firebrick;
      border-radius: 50%;
      position: absolute;
      top: 50%;
      left: 50%;
      transform-origin: center;
      transform: translateX(-50%) translateY(-50%);
      transition: transform 2s linear;
    }
    .circ:nth-of-type(1) {
      height: 10%;
      width: 10%;
      transform: translateX(-50%) translateY(-50%) rotateX(40deg) rotateY(40deg) translateZ(-55px);
    }
    .circ:nth-of-type(2) {
      height: 20%;
      width: 20%;
      transform: translatex(-50%) translateY(-50%) rotateX(40deg) rotateY(40deg) translateZ(-45px);
    }
    .circ:nth-of-type(3) {
      height: 30%;
      width: 30%;
      transform: translatex(-50%) translateY(-50%) rotateX(40deg) rotateY(40deg) translateZ(-25px);
    }
    .circ:nth-of-type(4) {
      height: 40%;
      width: 40%;
      transform: translatex(-50%) translateY(-50%) rotateX(40deg) rotateY(40deg) translateZ(-10px);
    }
    .circ:nth-of-type(5) {
      height: 40%;
      width: 40%;
      transform: translatex(-50%) translateY(-50%) rotateX(40deg) rotateY(40deg) translateZ(10px);
    }
    .circ:nth-of-type(6) {
      height: 30%;
      width: 30%;
      transform: translatex(-50%) translateY(-50%) rotateX(40deg) rotateY(40deg) translateZ(25px);
    }
    .circ:nth-of-type(7) {
      height: 20%;
      width: 20%;
      transform: translatex(-50%) translateY(-50%) rotateX(40deg) rotateY(40deg) translateZ(45px);
    }
    .circ:nth-of-type(8) {
      height: 10%;
      width: 10%;
      transform: translatex(calc(-50%)) translateY(-50%) rotateX(40deg) rotateY(40deg) translateZ(55px);
    }
    /*ANIMATION*/
    
    .container:hover .circ:nth-of-type(1) {
      transform: translateX(-50%) translateY(-50%) rotateX(180deg) rotateY(40deg) translateZ(-60px);
    }
    .container:hover .circ:nth-of-type(2) {
      transform: translatex(-50%) translateY(-50%) rotateX(180deg) rotateY(40deg) translateZ(-40px);
    }
    .container:hover .circ:nth-of-type(3) {
      transform: translatex(-50%) translateY(-50%) rotateX(180deg) rotateY(40deg) translateZ(-20px);
    }
    .container:hover .circ:nth-of-type(4) {
      transform: translatex(-50%) translateY(-50%) rotateX(180deg) rotateY(40deg) translateZ(0px);
    }
    .container:hover .circ:nth-of-type(5) {
      transform: translatex(-50%) translateY(-50%) rotateX(180deg) rotateY(40deg) translateZ(20px);
    }
    .container:hover .circ:nth-of-type(6) {
      transform: translatex(-50%) translateY(-50%) rotateX(180deg) rotateY(40deg) translateZ(40px);
    }
    .container:hover .circ:nth-of-type(7) {
      transform: translatex(-50%) translateY(-50%) rotateX(180deg) rotateY(40deg) translateZ(60px);
    }
    .container:hover .circ:nth-of-type(8) {
      transform: translatex(-50%) translateY(-50%) rotateX(180deg) rotateY(40deg) translateZ(70px);
    }
    .container:hover {
      background-color: #f2f2f2;
    }
    <div class="container">
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
      <div class="circ"></div>
    </div>

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