簡述
Windows 演示基礎 （WPF） 提供了一種功能，用于根據應用程序要求繪制、轉換 3D 圖形并為其添加動畫效果。它不支持完整的3D游戲開發，但在某種程度上，您可以創建3D圖形。
通過組合 2D 和 3D 圖形，您還可以創建豐富的控件、提供復雜的數據插圖或增強應用程序界面的用戶體驗。“視口3D”元素將 3D 模型托管到我們的 WPF 應用程序中。
示例
讓我們舉一個簡單的例子來了解如何使用3D圖形。
創建一個名為 WPF3D 圖形的新 WPF 項目。
以下 XAML 代碼演示如何使用 3D 幾何圖形創建 2D 對象。

<Window x:Class = "WPF3DGraphics.MainWindow" xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc = "http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local = "clr-namespace:WPF3DGraphics" mc:Ignorable = "d" Title = "MainWindow" Height = "500" Width = "604"> <Grid> <Viewport3D> <Viewport3D.Camera> <PerspectiveCamera Position = "2,0,10" LookDirection = "0.2,0.4,-1"FieldOfView = "65" UpDirection = "0,1,0" /> </Viewport3D.Camera> <ModelVisual3D> <ModelVisual3D.Content> <Model3DGroup> <AmbientLight Color = "Bisque" /> <GeometryModel3D> <GeometryModel3D.Geometry> <MeshGeometry3D Positions = "0,0,0 0,8,0 10,0,0 8,8,0"Normals = "0,0,1 0,0,1 0,0,1 0,0,1" TriangleIndices = "0,2,1 1,2,3"/> </GeometryModel3D.Geometry><GeometryModel3D.Material> <DiffuseMaterial Brush = "Bisque" /> </GeometryModel3D.Material> </GeometryModel3D></Model3DGroup> </ModelVisual3D.Content> </ModelVisual3D> </Viewport3D> </Grid> </Window>     

當您編譯并執行上述代碼時，它將在3D中生成2D對象。

示例
讓我們l一個顯示 3D 對象的示例。
創建一個名為 WPF3D 圖形1 的新 WPF 項目
以下 XAML 代碼創建一個 3D 對象和一個滑塊。在滑塊的幫助下，您可以旋轉此 3D 對象。

<Window x:Class = "WPF3DGraphics1.MainWindow" xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d = "http://schemas.microsoft.com/expression/blend/2008" xmlns:mc = "http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local = "clr-namespace:WPF3DGraphics1" mc:Ignorable = "d" Title = "MainWindow" Height = "350" Width = "525"> <Grid><Viewport3D Name="viewport3D1"><Viewport3D.Camera> <PerspectiveCamera x:Name = "camMain" Position = "6 5 4" LookDirection = "-6 -5 -4"> </PerspectiveCamera> </Viewport3D.Camera><ModelVisual3D> <ModelVisual3D.Content> <DirectionalLight x:Name = "dirLightMain" Direction = "-1,-1,-1"> </DirectionalLight> </ModelVisual3D.Content> </ModelVisual3D><ModelVisual3D x:Name = "MyModel"> <ModelVisual3D.Content> <GeometryModel3D><GeometryModel3D.Geometry><MeshGeometry3D x:Name = "meshMain"Positions = "0 0 0  1 0 0  0 1 0  1 1 0  0 0 1  1 0 1  0 1 1  0 1 1"  TriangleIndices = "2 3 1  3 1 0  7 1 3  7 5 1  6 5 7  6 4 5  6 2 02 0 4  2 7 3  2 6 7  0 1 5  0 5 4"> </MeshGeometry3D> </GeometryModel3D.Geometry> <GeometryModel3D.Material> <DiffuseMaterial x:Name = "matDiffuseMain"><DiffuseMaterial.Brush> <SolidColorBrush Color = "Bisque"/> </DiffuseMaterial.Brush> </DiffuseMaterial> </GeometryModel3D.Material> </GeometryModel3D></ModelVisual3D.Content><ModelVisual3D.Transform>                         <RotateTransform3D> <RotateTransform3D.Rotation> <AxisAngleRotation3D x:Name = "rotate" Axis = "1 2 1"/> </RotateTransform3D.Rotation> </RotateTransform3D></ModelVisual3D.Transform> </ModelVisual3D> </Viewport3D><Slider Height = "23" HorizontalMoognment = "Left"  Margin = "145,271,0,0" Name = "slider1" VerticalMoognment = "Top" Width = "269"  Maximum = "360" Value = "{Binding ElementName = rotate, Path=Angle}" /> </Grid> </Window> 

運行應用程序時，它將在窗口上生成一個 3D 對象和一個滑塊。
滑動滑塊時，窗口中的對象也將旋轉。