matrix3d()

Baseline 已广泛支持

此特性已相当成熟,可在许多设备和浏览器版本上使用。自 ⁨2015 年 7 月⁩以来,各浏览器均已提供此特性。

matrix3d() CSS 函数将 3D 变换定义为 4x4 齐次矩阵。其结果是 <transform-function> 数据类型。

试一试

transform: matrix3d(
  -0.6,
  1.34788,
  0,
  0,
  -2.34788,
  -0.6,
  0,
  0,
  0,
  0,
  1,
  0,
  0,
  0,
  10,
  1
);
transform: matrix3d(
  0.5,
  0,
  -0.866025,
  0,
  0.595877,
  1.2,
  -1.03209,
  0,
  0.866025,
  0,
  0.5,
  0,
  25.9808,
  0,
  15,
  1
);
<section id="default-example">
  <img
    class="transition-all"
    id="example-element"
    src="/shared-assets/images/examples/firefox-logo.svg"
    width="200" />
</section>

语法

css
matrix3d(a1, b1, c1, d1, a2, b2, c2, d2, a3, b3, c3, d3, a4, b4, c4, d4)

matrix3d() 函数由 16 个值指定。它们以列主序描述。

a1 b1 c1 d1 a2 b2 c2 d2 a3 b3 c3 d3

是描述线性变换的 <number>

a4 b4 c4 d4

是描述要应用的平移的 <number>

笛卡尔坐标,在 ℝ^2 齐次坐标,在 ℝℙ^2 笛卡尔坐标,在 ℝ^3 齐次坐标,在 ℝℙ^3
此变换适用于 3D 空间,无法在平面上表示。 通用的 3D 仿射变换不能用笛卡尔坐标矩阵表示,因为平移不是线性变换。
(a1a2a3a4b1b2b3b4c1c2c3c4d1d2d3d4)\left( \begin{array}{cccc} a1 & a2 & a3 & a4 \\ b1 & b2 & b3 & b4 \\ c1 & c2 & c3 & c4 \\ d1 & d2 & d3 & d4 \\ \end{array} \right)

正式语法

<matrix3d()> = 
matrix3d( <number>#{16} )

示例

立方体挤压示例

以下示例展示了一个由 DOM 元素和变换创建的 3D 立方体,当鼠标悬停/聚焦时,会对其应用 matrix3d() 变换。

HTML

html
<section id="example-element" tabindex="0">
  <div class="face front">1</div>
  <div class="face back">2</div>
  <div class="face right">3</div>
  <div class="face left">4</div>
  <div class="face top">5</div>
  <div class="face bottom">6</div>
</section>

CSS

css
#example-element {
  width: 100px;
  height: 100px;
  transform-style: preserve-3d;
  transition: transform 1.5s;
  transform: rotate3d(1, 1, 1, 30deg);
  margin: 50px auto;
}

#example-element:hover,
#example-element:focus {
  transform: rotate3d(1, 1, 1, 30deg)
    matrix3d(1, 0, 0, 0, 0, 1, 6, 0, 0, 0, 1, 0, 50, 100, 0, 1.1);
}

.face {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  position: absolute;
  backface-visibility: inherit;
  font-size: 60px;
  color: white;
}

.front {
  background: rgb(90 90 90 / 70%);
  transform: translateZ(50px);
}

.back {
  background: rgb(0 210 0 / 70%);
  transform: rotateY(180deg) translateZ(50px);
}

.right {
  background: rgb(210 0 0 / 70%);
  transform: rotateY(90deg) translateZ(50px);
}

.left {
  background: rgb(0 0 210 / 70%);
  transform: rotateY(-90deg) translateZ(50px);
}

.top {
  background: rgb(210 210 0 / 70%);
  transform: rotateX(90deg) translateZ(50px);
}

.bottom {
  background: rgb(210 0 210 / 70%);
  transform: rotateX(-90deg) translateZ(50px);
}

结果

矩阵平移和缩放示例

另一个 transform3d() 示例,它实现了动画化的组合平移和缩放。

HTML

html
<div class="foo">
  Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos quaerat sit
  soluta, quisquam exercitationem delectus qui unde in facere necessitatibus aut
  quia porro dolorem nesciunt enim, at consequuntur aliquam esse?
</div>

CSS

css
html {
  width: 100%;
}
body {
  height: 100vh;
  /* Centering content */
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
  align-content: center;
}
.foo {
  width: 50%;
  padding: 1em;
  color: white;
  background: #ff8c66;
  border: 2px dashed black;
  text-align: center;
  font-family: system-ui, sans-serif;
  font-size: 14px;
  /* Setting up animation for better demonstration */
  animation: MotionScale 2s alternate linear infinite;
}

@keyframes MotionScale {
  0% {
    /*
      Identity matrix is used as basis here.
      The matrix below describes the
      following transformations:
        Translates every X point by -50px
        Translates every Y point by -100px
        Translates every Z point by 0
        Scales down by 10%
    */
    /* prettier-ignore */
    transform: matrix3d(
      1, 0, 0, 0,
      0, 1, 0, 0,
      0, 0, 1, 0,
      -50, -100, 0, 1.1
    );
  }
  50% {
    /* prettier-ignore */
    transform: matrix3d(
      1, 0, 0, 0,
      0, 1, 0, 0,
      0, 0, 1, 0,
      0, 0, 0, 0.9
    );
  }
  100% {
    /* prettier-ignore */
    transform: matrix3d(
      1, 0, 0, 0,
      0, 1, 0, 0,
      0, 0, 1, 0,
      50, 100, 0, 1.1
    )
  }
}

结果

规范

规范
CSS 变换模块级别 2
# funcdef-matrix3d

浏览器兼容性

另见