Directional light : 3D « Windows Presentation Foundation « VB.Net Tutorial






<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>
        <MeshGeometry3D x:Key="triangleMesh" Positions="-1,-1,0 1,-1,-2 1,1,0" TriangleIndices="0 1 2" />
    </Window.Resources>
    <UniformGrid>
        <Viewport3D x:Name="vp1">
            <Viewport3D.Camera>
                <PerspectiveCamera LookDirection="0,0,-1" Position="0,0,5" />
            </Viewport3D.Camera>
            <ModelVisual3D>
                <ModelVisual3D.Content>
                    <DirectionalLight Direction="-1,-1,-1" Color="White" />
                </ModelVisual3D.Content>
            </ModelVisual3D>
        </Viewport3D>


    </UniformGrid>
</Window>
//File:Window.xaml.vb
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Media
Imports System.Windows.Media.Media3D

Namespace WpfApplication1
  Public Partial Class Window1
    Inherits Window
    Public Sub New()
      InitializeComponent()
    End Sub
    Private Sub Window1_Loaded(sender As Object, e As RoutedEventArgs)
      Dim triangleMesh As MeshGeometry3D = DirectCast(TryFindResource("triangleMesh"), MeshGeometry3D)
      CreateTriangles(vp1, 4, triangleMesh)
    End Sub

    Private Sub CreateTriangles(viewport3D As Viewport3D, triangleCount As Integer, triangleMesh As MeshGeometry3D)
      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), 20)
      modelVisual3D.Transform = rotateTransform
      viewport3D.Children.Add(modelVisual3D)
    End Sub
  End Class
End Namespace
WPF Directional Light








16.117.3D
16.117.1.Define light and Material for 3D objectDefine light and Material for 3D object
16.117.2.Use 3D in Your ApplicationUse 3D in Your Application
16.117.3.A simple 3D modelA simple 3D model
16.117.4.MeshGeometry3DMeshGeometry3D
16.117.5.GeometryModel3D with MeshGeometry3DGeometryModel3D with MeshGeometry3D
16.117.6.GeometryModel3D Geometry MaterialGeometryModel3D Geometry Material
16.117.7.Setup Viewport3D.CameraSetup Viewport3D.Camera
16.117.8.DiffuseMaterial DemoDiffuseMaterial Demo
16.117.9.AmbientLight DemoAmbientLight Demo
16.117.10.Draw a 3D ModelDraw a 3D Model
16.117.11.Point lightPoint light
16.117.12.Directional lightDirectional light
16.117.13.Spot lightSpot light
16.117.14.Ambient lightAmbient light
16.117.15.Specular MaterialSpecular Material
16.117.16.Diffuse MaterialDiffuse Material
16.117.17.Interact with 3D ObjectsInteract with 3D Objects