原文:

WavefrontObjLoader.cs

 

第二步：ModelVisual3DWithName.cs

public class ModelVisual3DWithName:ModelVisual3D

    {

        public string Name { get; set; }

        public object Tag { get; set; }

    }

第三步：MainWindow.xmal

<Grid x:Name="lay">

     <Viewport3D x:Name="vp" Margin="0">

      <Viewport3D.Camera>

       <PerspectiveCamera FieldOfView="45" FarPlaneDistance="100" LookDirection="0,0,-3.4142135623731" NearPlaneDistance="0.1" Position="0,0,3.4142135623731" UpDirection="0,3,0"/>

      </Viewport3D.Camera>

        </Viewport3D>

        <Slider Height="23" HorizontalAlignment="Left" Margin="220,288,0,0" Name="slider1" VerticalAlignment="Top" Width="100" Maximum="2000" />

        <Slider Height="23" HorizontalAlignment="Left" Margin="49,288,0,0" Name="slider2" VerticalAlignment="Top" Width="100" Maximum="1000" />

        <Slider Height="23" HorizontalAlignment="Left" Margin="367,288,0,0" Name="slider3" VerticalAlignment="Top" Width="100" Minimum="200" Maximum="2000" />

        <Slider Height="23" HorizontalAlignment="Left" Margin="567,288,0,0" Name="slider4" VerticalAlignment="Top" Width="100" Minimum="200" Maximum="2000" />

    </Grid>

第四步：MainWindow.xmal

PerspectiveCamera myPCamera;

        DirectionalLight myDirectionalLight;

        Model3DGroup myModel3DGroup;

        WavefrontObjLoader wfl;

        ModelVisual3DWithName mv3dw;

        public MainWindow()

        {

            InitializeComponent();

            wfl = new WavefrontObjLoader();            slider1.ValueChanged += new RoutedPropertyChangedEventHandler<double>(slider1_ValueChanged);

            slider2.ValueChanged += new RoutedPropertyChangedEventHandler<double>(slider2_ValueChanged);

            slider3.ValueChanged += new RoutedPropertyChangedEventHandler<double>(slider3_ValueChanged);

            slider4.ValueChanged += new RoutedPropertyChangedEventHandler<double>(slider4_ValueChanged);            

            createCamera();

            createLight();

            createModel3D();

            create360();

            //createAnimation();

        }

        #region //光源

        private void createLight()

        {

            myDirectionalLight = new DirectionalLight();

            myDirectionalLight.Color = Colors.White;

            myDirectionalLight.Direction = new Vector3D(-0.61, -0.5, -0.61);