JS / CSS組合-獲得3D圖像環繞效果

Question

我正在嘗試為網站上的圖像獲取3D環繞效果。 3D包裝類似於此圖中的包裝

我需要的效果與圖片中的效果完全一樣

以下是我目前用於實現此功能的純CSS。

.gallery-wrap{
    background-color: rgba(0,0,0,0);
    -webkit-box-shadow: 0 0px 0px 0px black !important;
    -moz-box-shadow: 0 0px 0px 0px black !important;
    box-shadow: 0 0px 0px 0px black !important;
  }
  .gallery-wrap img{
    transform: perspective(400px) rotateY(10deg) translateX(7.5%) translateY(30px);
    margin-bottom: 5em !important;
    background-color: rgba(0,0,0,0);
    -webkit-box-shadow: 0 5px 7px -1px black;
    -moz-box-shadow: 0 5px 7px -1px black;
    box-shadow: 0 5px 7px -1px black;
  }
  .gallery-wrap div:after{
    content: '';
    width: 5%;
    height: 96%;
    background-image: url('<url of the same image the is to be wrapped>');
    position: absolute;
    top: 0px;
    transform: perspective(250px) rotateY(-55deg) translateY(7px) translateX(-10px);
    left: 0px;
    background-size: 10% 750%;
    background-position-x: 0%;
  }

該代碼有效，但問題是它不適用於所有圖像。 高度大於寬度的圖像將產生以上代碼。

我想知道是否有人可以通過JS算法幫助我/將我指向執行此操作的現有（最好是免費的）JS。 該算法應捕獲img元素的寬度和高度，然后呈現上述代碼的transform值。

Answer 1

弄清楚了。 代碼如下

.gallery-wrap{
    perspective: 1000px;  //required to get the correct 3D depth
}
.gallery-wrap div:after{
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 36px;
    height: 100%;
    background: inherit;
    background-size: cover, cover;
    background-position: left; //This and the next 2 lines are for left edge. Change bottom/top/right accordingly
    transform: rotateY(90deg); // Y is the Axis of rotation. Change accordingly. 90deg will flip (mirror) the image
    transform-origin: left; // Which side to be flipped
}
.gallery-wrap div {
    display: block;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url("<image_link>"); // Just to add a gradient effect to the farther side
    background-size: 0, cover;  //To get the gradient effect
    transform-style: preserve-3d;
    transition: all 0.5s;
    margin: 10% auto; // This and the next line 2 line are dimension adjustments
    width: 80%;
    transform: rotateY(37.5deg); // This is for the main image rotation
    transform-origin: center; // This is for point of origin of the transform. Use center for the best effect;
}

該圖像必須用作背景圖像。

元素的結構.gallery-wrap > div

歸功於原始來源-TheCodePlayer