灌水动画

Question

我正在尝试制作一个擦除动画，使一个圆看起来像它正在注满水。我运行犯了两个错误，甚至无法解决第三个错误：

填错了
~~填满后重置为空（黑色）~~ *
目前，我使用的是 <img> 标签，但我想将此效果移至 body { background-image: } 并且需要一些指导以了解如何执行此操作。

#banner {
  width: 300px;
  height: 300px;
  position: relative;
}
#banner div {
  position: absolute;
}
#banner div:nth-child(2) {
  -webkit-animation: wipe 6s;
  -webkit-animation-delay: 0s;
  -webkit-animation-direction: up;
  -webkit-mask-size: 300px 3000px;
  -webkit-mask-position: 300px 300px;
  -webkit-mask-image: -webkit-gradient(linear, left bottom, left top, color-stop(0.00, rgba(0, 0, 0, 1)), color-stop(0.25, rgba(0, 0, 0, 1)), color-stop(0.27, rgba(0, 0, 0, 0)), color-stop(0.80, rgba(0, 0, 0, 0)), color-stop(1.00, rgba(0, 0, 0, 0)));
}
@-webkit-keyframes wipe {
  0% {
    -webkit-mask-position: 0 0;
  }
  100% {
    -webkit-mask-position: 300px 300px;
  }
}

<div id="banner">
  <div>
    <img src="http://i.imgur.com/vklf6kK.png" />
  </div>
  <div>
    <img src="http://i.imgur.com/uszeRpk.png" />
  </div>
</div>

按照@anpsmn的建议给它一个默认的遮罩位置，不再将它重置为黑色。

Answer 1

我认为这实现了您的第一个目标：

#banner div:nth-child(2) {
  -webkit-animation: wipe 6s;
  -webkit-animation-delay: 0s;
  -webkit-animation-direction: up;
  -webkit-mask-size: 300px 3000px;
  -webkit-mask-position: 300px 300px;
  -webkit-mask-image: -webkit-gradient(linear, left bottom, left top,
    color-stop(0.00,  rgba(0,0,0,0)),
    color-stop(0.25,  rgba(0,0,0,0)),
    color-stop(0.27,  rgba(0,0,0,0)),
    color-stop(0.80,  rgba(0,0,0,1)),
    color-stop(1.00,  rgba(0,0,0,1)));
 }

 @-webkit-keyframes wipe {
     0% {
    -webkit-mask-position: 300px 300px;
  }
     100% {
    -webkit-mask-position: 0 0;
  }
}

Answer 2

这可以通过一个 div 和一个 ::before pseudo element:

来实现

给定 #banner border-radius: 50% 创建一个圆圈并 overflow: hidden 将其子项夹在其中
::before 伪元素动画到 100% 高度，动画在 100% 处暂停使用 the forwards value。它从底部开始使用 bottom: 0
将应用背景图像代替 #banner 和 #banner::before
上的黑色和蓝色背景

兼容性： IE10+ 和所有现代浏览器。 -webkit- 前缀属性很可能不再需要您的关键帧动画。 Check the browser compatibility chart over here on caniuse.com

工作示例

我添加了 cubic-bezier(.2,.6,.8,.4) 。它提供了一个整洁的效果！

#banner {
  width: 300px;
  height: 300px;
  position: relative;
  background: #000;
  border-radius: 50%;
  overflow: hidden;
}
#banner::before {
  content: '';
  position: absolute;
  background: #04ACFF;
  width: 100%;
  bottom: 0;
  animation: wipe 5s cubic-bezier(.2,.6,.8,.4) forwards;
}
@keyframes wipe {
  0% {
    height: 0;
  }
  100% {
    height: 100%;
  }
}

<div id="banner">

</div>

Answer 3

这里有四个不同的版本来补充。

1。使用缓动

说明

如果你把一个装满液体的圆形碗装满，它在底部和顶部的填充速度会比在中间快（因为在较宽的中间部分有更多的区域可以覆盖）。所以，考虑到这个粗略的解释，动画需要：开始快，中间慢，然后当碗在顶部再次变窄时快速结束。

为此我们可以使用 CSS3 缓动函数：cubic-bezier(.2,.6,.8,.4).

看看下面的例子。

(如果你想调整这里的缓动是一个很好的资源：http://cubic-bezier.com/#.2,.6,.8,.4)

示例：

#banner {
  width: 150px;
  height: 150px;
  position: relative;
  background: #000;
  border-radius: 50%;
  overflow: hidden;
}
#banner::before {
  content: '';
  position: absolute;
  background: #04ACFF;
  width: 100%;
  bottom: 0;
  animation: wipe 5s cubic-bezier(.2,.6,.8,.4) forwards;
}
@keyframes wipe {
  0% {
    height: 0;
  }
  100% {
    height: 100%;
  }
}

<div id="banner">

</div>

2。 SVG 美味

让我们更进一步？如果我们想使用 CSS 在 "water" 上添加波浪表面怎么办？我们可以使用神奇的 SVG 来做到这一点。我在 Adobe Illustrator 中创建了一个波浪形 SVG 图像，然后使用单独的 CSS 动画将其动画化为从左到右循环移动，瞧：

示例

#banner {
    border-radius: 50%;
    width: 150px;
    height: 150px;
    background: #000;
    overflow: hidden;
    backface-visibility: hidden;
    transform: translate3d(0, 0, 0);
}
#banner .fill {
    animation-name: fillAction;
    animation-iteration-count: 1;
    animation-timing-function: cubic-bezier(.2, .6, .8, .4);
    animation-duration: 4s;
    animation-fill-mode: forwards;
}
#banner #waveShape {
    animation-name: waveAction;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    animation-duration: 0.5s;
    width:300px;
    height: 150px;
    fill: #04ACFF;
}
@keyframes fillAction {
    0% {
        transform: translate(0, 150px);
    }
    100% {
        transform: translate(0, -5px);
    }
}
@keyframes waveAction {
    0% {
        transform: translate(-150px, 0);
    }
    100% {
        transform: translate(0, 0);
    }
}

<div id="banner">
<div class="fill">
    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="300px" height="300px" viewBox="0 0 300 300" enable-background="new 0 0 300 300" xml:space="preserve">
      <path fill="#04ACFF" id="waveShape" d="M300,300V2.5c0,0-0.6-0.1-1.1-0.1c0,0-25.5-2.3-40.5-2.4c-15,0-40.6,2.4-40.6,2.4
 c-12.3,1.1-30.3,1.8-31.9,1.9c-2-0.1-19.7-0.8-32-1.9c0,0-25.8-2.3-40.8-2.4c-15,0-40.8,2.4-40.8,2.4c-12.3,1.1-30.4,1.8-32,1.9
 c-2-0.1-20-0.8-32.2-1.9c0,0-3.1-0.3-8.1-0.7V300H300z"/>
    </svg>
</div>
</div>

3。有浇注线

此示例包括一条倾倒线（大多数碗从顶部填充，而不是从底部填充）。浇筑线首先从上到下设置动画，而 animation-delay 属性防止填充动画在浇筑完成之前发生。

#banner {
  border-radius: 50%;
  width: 150px;
  height: 150px;
  background: #000;
  overflow: hidden;
  backface-visibility: hidden;
  transform: translate3d(0, 0, 0);
  position: relative;
}

#banner .fill {
  transform: translateY(150px);
  animation-name: fillAction;
  animation-iteration-count: 1;
  animation-timing-function: cubic-bezier(.2, .6, .8, .4);
  animation-duration: 4s;
  animation-fill-mode: forwards;
  animation-delay: 0.25s;
}

#banner .pour {
  width: 6px;
  position: absolute;
  left: 50%;
  margin-left: -3px;
  bottom: 0;
  top: 0;
  background: #009ae6;
  animation-name: pourAction;
  animation-timing-function: linear;
  animation-duration: 0.25s;
}

#banner #waveShape {
  animation-name: waveAction;
  animation-iteration-count: infinite;
  animation-timing-function: linear;
  animation-duration: 0.5s;
  width: 300px;
  height: 150px;
  fill: #04ACFF;
}

@keyframes pourAction {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(0);
  }
}

@keyframes fillAction {
  0% {
    transform: translateY(150px);
  }
  100% {
    transform: translateY(-5px);
  }
}

@keyframes waveAction {
  0% {
    transform: translate(-150px, 0);
  }
  100% {
    transform: translate(0, 0);
  }
}

<div id="banner">
  <div class="pour"></div>
  <div class="fill">
    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="300px" height="300px" viewBox="0 0 300 300" enable-background="new 0 0 300 300" xml:space="preserve">
      <path fill="#04ACFF" id="waveShape" d="M300,300V2.5c0,0-0.6-0.1-1.1-0.1c0,0-25.5-2.3-40.5-2.4c-15,0-40.6,2.4-40.6,2.4
c-12.3,1.1-30.3,1.8-31.9,1.9c-2-0.1-19.7-0.8-32-1.9c0,0-25.8-2.3-40.8-2.4c-15,0-40.8,2.4-40.8,2.4c-12.3,1.1-30.4,1.8-32,1.9
c-2-0.1-20-0.8-32.2-1.9c0,0-3.1-0.3-8.1-0.7V300H300z" />
    </svg>
  </div>
</div>

4。 With Serious Bling（美丽的美学）

此示例向 [=89=] 添加了更多属性，使其看起来更逼真。

.bowl {
  position: relative;
  border-radius: 50%;
  width: 150px;
  height: 150px;
  box-shadow: inset 0 -5px 0 0 rgba(0, 0, 0, 0.5), inset 0 -20px 5px 0 rgba(0, 0, 0, 0.2), inset -15px 0 5px 0 rgba(0, 0, 0, 0.1), inset 15px 0 5px 0 rgba(0, 0, 0, 0.1);
  background: -moz-radial-gradient(center, ellipse cover, transparent 0%, transparent 76%, rgba(0, 0, 0, 0.65) 100%);
  background: -webkit-radial-gradient(center, ellipse cover, transparent 0%, transparent 76%, rgba(0, 0, 0, 0.65) 100%);
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 76%, rgba(0, 0, 0, 0.65) 100%);
  margin: 20px;
}
.bowl:before {
  overflow: hidden;
  border-radius: 50%;
  content: "";
  box-shadow: inset 0 -5px 0 0 rgba(0, 0, 0, 0.5), inset 0 -20px 5px 0 rgba(0, 0, 0, 0.2), inset -15px 0 5px 0 rgba(0, 0, 0, 0.1), inset 15px 0 5px 0 rgba(0, 0, 0, 0.1);
  background: -moz-radial-gradient(center, ellipse cover, transparent 0%, transparent 60%, rgba(0, 0, 0, 0.65) 81%, black 100%);
  background: -webkit-radial-gradient(center, ellipse cover, transparent 0%, transparent 60%, rgba(0, 0, 0, 0.65) 81%, black 100%);
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 60%, rgba(0, 0, 0, 0.65) 81%, #000000 100%);
  position: absolute;
  width: 150px;
  height: 150px;
  z-index: 2;
}
.bowl:after {
  content: "";
  width: 60px;
  border-radius: 50%;
  height: 5px;
  background: #039be4;
  box-shadow: inset 0 0 10px 0 #000;
  position: absolute;
  left: 50%;
  margin-left: -30px;
  bottom: 0;
  z-index: 2;
}
.bowl .inner {
  border-radius: 50%;
  width: 150px;
  height: 150px;
  background: -moz-radial-gradient(center, ellipse cover, transparent 0%, transparent 76%, rgba(0, 0, 0, 0.65) 100%);
  background: -webkit-radial-gradient(center, ellipse cover, transparent 0%, transparent 76%, rgba(0, 0, 0, 0.65) 100%);
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 76%, rgba(0, 0, 0, 0.65) 100%);
  overflow: hidden;
  -webkit-backface-visibility: hidden;
  -webkit-transform: translate3d(0, 0, 0);
}
.bowl .inner:before {
  content: "";
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  position: absolute;
  right: 40%;
  top: 60%;
  z-index: 2;
}
.bowl .inner:after {
  content: "";
  width: 20px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  position: absolute;
  right: 30%;
  top: 15%;
  transform: rotate(-20deg);
  z-index: 2;
}
.bowl .fill {
  -webkit-animation-name: fillAction;
  -webkit-animation-iteration-count: 1;
  -webkit-animation-timing-function: cubic-bezier(0.2, 0.6, 0.8, 0.4);
  -webkit-animation-duration: 4s;
  -webkit-animation-fill-mode: forwards;
}
.bowl .waveShape {
  -webkit-animation-name: waveAction;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-timing-function: linear;
  -webkit-animation-duration: 0.5s;
  width: 300px;
  height: 150px;
  fill: #039be4;
}

@-webkit-keyframes fillAction {
  0% {
    -webkit-transform: translate(0, 150px);
  }
  100% {
    -webkit-transform: translate(0, 10px);
  }
}
@-webkit-keyframes waveAction {
  0% {
    -webkit-transform: translate(-150px, 0);
  }
  100% {
    -webkit-transform: translate(0, 0);
  }
}
/* For aesthetics only ------------------------------------------*/
body {
  margin: 0;
  font-family: Segoe, "Segoe UI", "DejaVu Sans", "Trebuchet MS", Verdana, sans-serif;
}

h1 {
  font: 200 1.2em "Segoe UI Light", "DejaVu Sans", "Trebuchet MS", Verdana, sans-serif;
  font-weight: 200;
  color: #fff;
  background: #039be4;
  padding: 20px;
  margin: 0;
  border-bottom: 10px solid #ccc;
}
h1 strong {
  font-family: "Segoe UI Black";
  font-weight: normal;
}

.explanation {
  padding: 20px 40px;
  float: right;
  background: #e64a19;
  -webkit-box-shadow: inset 0 30px 3px 0 rgba(0, 0, 0, 0.5);
  box-shadow: inset 0 3px 5px 0 rgba(0, 0, 0, 0.2);
  border-bottom: 10px solid #ccc;
  max-width: 300px;
}
.explanation p {
  color: #fff;
  font-size: 0.8rem;
}

<div class="bowl">
  <div class="inner">
    <div class="fill">
      <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="300px" height="300px" viewBox="0 0 300 300" enable-background="new 0 0 300 300" xml:space="preserve">
        <path class="waveShape" d="M300,300V2.5c0,0-0.6-0.1-1.1-0.1c0,0-25.5-2.3-40.5-2.4c-15,0-40.6,2.4-40.6,2.4
 c-12.3,1.1-30.3,1.8-31.9,1.9c-2-0.1-19.7-0.8-32-1.9c0,0-25.8-2.3-40.8-2.4c-15,0-40.8,2.4-40.8,2.4c-12.3,1.1-30.4,1.8-32,1.9
 c-2-0.1-20-0.8-32.2-1.9c0,0-3.1-0.3-8.1-0.7V300H300z" />
      </svg>
    </div>
  </div>
</div>

Answer 4

div{
  width: 200px;
  height: 200px;
  background: #ccc;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  z-index: 9;
}
div:before{
  content: '';
  position: absolute; top: 100%; left: 0;
  width: 100%;
  height: 100%;
  background: #00BFFF;  
  -webkit-animation: animtop 5s forwards, animtop2 2s forwards;
  animation: animtop 5s forwards, animtop2 2s forwards;
}
@-webkit-keyframes animtop{  
  0%{top: 100%;}  
  75%{top: 0}
}
@keyframes animtop{  
  0%{top: 100%;}  
  100%{top: 25%}
}
@-webkit-keyframes animtop2{  
  75%{top: 25%;}  
  100%{top: 0}
}
@keyframes animtop2{  
  75%{top: 25%;}  
  100%{top: 0}
}

<div></div>

Answer 5

这里是div悬停

中的Water filling working codpen

HTML

<div class="dot">
</div>

CSS

.dot {
  border: 1px;  
  border-style: solid;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border-color: black;
  color: black;
  padding: 5px;
  background-size: 200% 200%;
  background-image: 
  linear-gradient(to top, #76daff 50%, transparent 50%);
  transition: background-position 3000ms, color 3000ms ease, border-color 3000ms ease;
}

.dot:hover {
  color: white;
  border-color: black;
  background-image: 
    linear-gradient(to top, #76daff 51%, transparent 50%);
  background-position: 0 100%;
  transition: background-position 3000ms, color 3000ms ease, border-color 3000ms ease;
}

https://codepen.io/ajitkumar96/pen/pOYbQm?editors=1100

Answer 6

纯 CSS，没有 JavaScript，没有 SVG。在 .shape 中关闭 overflow: hidden 以查看它的工作原理。

使用 CSS animation 制作。你可以罚款 fill-up 和 animate @keyframes

如果您希望使用 JavaScript 加载填充 - 您可以访问 .wave 元素。 top: 50%; 是 0%，top: -75% 是 100% 的加载。你可以随心所欲地玩这个数字。

.shape {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
}

.shape:after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  box-shadow: inset 0px 0px 30px 0px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  z-index: 3;
}

.wave {
  position: absolute;
  top: 50%;
  left: 0;
  width: 200%;
  height: 200%;
  transform: translate(-25%, 0);
  background: #4973ff;
  animation: fill-up 10s ease infinite;
}

@keyframes fill-up {
  to {
    top: -75%;
  }
}

.wave:before,
.wave:after {
  content: '';
  position: absolute;
  width: 110%;
  height: 100%;
  top: 0;
  left: 50%;
  transform: translate(-50%, -75%);
  background: #000;
}

.wave:before {
  border-radius: 45%;
  background: rgba(179, 241, 255, 1);
  animation: animate 3s linear infinite;
}

.wave:after {
  border-radius: 40%;
  background: rgba(179, 241, 255, 0.5);
  animation: animate 3s linear infinite;
}

@keyframes animate {
  0% {
    transform: translate(-50%, -75%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -75%) rotate(360deg);
  }
}

<div class="shape">
  <div class="wave">
  </div>
</div>

灌水动画

Filling water animation

css

svg

css-animations

css-shapes

工作示例

1。使用缓动

2。 SVG 美味

3。有浇注线

4。 With Serious Bling（美丽的美学）