How to draw a 3D Model in WPF
In this article i will show you how to create a 3D Model in WPF Application.
In the world of 3D graphics, all objects are described by a set of triangle. The basic thinking behind creating a 3D graphics is to have a three dimensional model of an object.
A surface of a 3D object is called a mesh which is defined by a number of 3D points. These points are called vertices. The vertices are joined together by a winding pattern to define the triangles. Every triangle has a front and a back side. Only the front side is rendered. Now the following example shows how to create a 3D Model in WPF Application.
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="" Height="300" Width="300" Loaded="Window1_Loaded">
<Window.Resources>
<Viewport3D x:Name="vp">
<Viewport3D.Camera>
<PerspectiveCamera LookDirection="0,0,-1" Position="0,0,5" />
</Viewport3D.Camera>
<ModelVisual3D>
<PointLight Position="0,-1,1" Color="white" />
</ModelVisual3D.Content>
</ModelVisual3D>
</Viewport3D>
</Window>
Imports System.Windows
Imports System.Windows.Media
Imports System.Windows.Media.Media3D
Namespace WpfApplication1
Partial Public Class Window1
Inherits Window
Public Sub New()
InitializeComponent()
End Sub
Private Sub Window1_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
Dim triangleMesh As MeshGeometry3D = DirectCast(TryFindResource("triangleMesh"), MeshGeometry3D)
For i As Integer = 0 To 3
Dim modelVisual3D As New ModelVisual3D()
Dim geometryModel3D As New GeometryModel3D()
geometryModel3D.Geometry = triangleMesh
geometryModel3D.Material = New DiffuseMaterial(Brushes.Firebrick)
modelVisual3D.Content = geometryModel3D
Dim rotateTransform As New RotateTransform3D()
rotateTransform.Rotation = New AxisAngleRotation3D(New Vector3D(0, 0, -1), i * 40)
modelVisual3D.Transform = rotateTransform
vp.Children.Add(modelVisual3D)
Next
End Sub
End Class
End Namespace
A Sample 3D Model
