Vista - ImageBrush & 3D

I can't get my viewport3d to display the content of my image brush the image
brush does work on the rectangle but not in my 3D viewport. Here is the
XAML what am I doing wrong?

<Viewport3D Margin="0,34,24,33" x:Name="Viewport3D"
HorizontalAlignment="Right" Width="288">
<Viewport3D.Camera>
<PerspectiveCamera x:Name="OrthographicCamera" FieldOfView="45"
Position="0,0.5,3" LookDirection="0,0,-1" UpDirection="0,1,0"
NearPlaneDistance="0.125" FarPlaneDistance="Infinity">
<PerspectiveCamera.Transform>
<Transform3DGroup>
<TranslateTransform3D OffsetZ="0" OffsetY="0" OffsetX="0"/>
<ScaleTransform3D ScaleX="1" ScaleY="1" ScaleZ="1"/>
<RotateTransform3D d:EulerAngles="0,0,0"/>
<TranslateTransform3D OffsetZ="0" OffsetY="0" OffsetX="0"/>
<TranslateTransform3D OffsetZ="0" OffsetY="0" OffsetX="0"/>
</Transform3DGroup>
</PerspectiveCamera.Transform>
</PerspectiveCamera>
</Viewport3D.Camera>


<ModelVisual3D>
<ModelVisual3D.Content>
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D Positions="0 0 0, 0 1 0, 1 0 0, 1 1
0"
TriangleIndices="0 2 3, 0 3 1" />
</GeometryModel3D.Geometry>

<GeometryModel3D.Material>
<DiffuseMaterial>
<DiffuseMaterial.Brush>
<ImageBrush ImageSource="Images\pic_011.tif" Stretch="Fill"/>
</DiffuseMaterial.Brush>
</DiffuseMaterial>
</GeometryModel3D.Material>

<GeometryModel3D.BackMaterial>
<DiffuseMaterial Brush="Blue" />
</GeometryModel3D.BackMaterial>

</GeometryModel3D>
</ModelVisual3D.Content>
</ModelVisual3D>

<ModelVisual3D>
<ModelVisual3D.Content>
<AmbientLight Color="Yellow" />
</ModelVisual3D.Content>
</ModelVisual3D>


</Viewport3D>

<Rectangle Stroke="#FF000000" HorizontalAlignment="Left"
VerticalAlignment="Stretch" Margin="17,20,0,19" Width="283" Height="Auto"
x:Name="Rectangle">
<Rectangle.Fill>
<ImageBrush ImageSource="Images\pic_011.tif" Stretch="None" />

</Rectangle.Fill>

</Rectangle>

To use any Material other than a SolidColorBrush you will need to provide
texture coordinates for each of your vertices. These allow us to map out
the topology of the 2d surface of your mesh when we apply the material. In
your example below, you might want TextureCoordinates="0,1 0,0 1,1 1,0".

-Adam Smith [MS]

"John" <lorenzen_j@hotmail.com> wrote in message
news:2156E3F9-8BF8-4689-92E8-760070955366@microsoft.com...
>I can't get my viewport3d to display the content of my image brush the
>image brush does work on the rectangle but not in my 3D viewport. Here is
>the XAML what am I doing wrong?
>
> <Viewport3D Margin="0,34,24,33" x:Name="Viewport3D"
> HorizontalAlignment="Right" Width="288">
> <Viewport3D.Camera>
> <PerspectiveCamera x:Name="OrthographicCamera" FieldOfView="45"
> Position="0,0.5,3" LookDirection="0,0,-1" UpDirection="0,1,0"
> NearPlaneDistance="0.125" FarPlaneDistance="Infinity">
> <PerspectiveCamera.Transform>
> <Transform3DGroup>
> <TranslateTransform3D OffsetZ="0" OffsetY="0" OffsetX="0"/>
> <ScaleTransform3D ScaleX="1" ScaleY="1" ScaleZ="1"/>
> <RotateTransform3D d:EulerAngles="0,0,0"/>
> <TranslateTransform3D OffsetZ="0" OffsetY="0" OffsetX="0"/>
> <TranslateTransform3D OffsetZ="0" OffsetY="0" OffsetX="0"/>
> </Transform3DGroup>
> </PerspectiveCamera.Transform>
> </PerspectiveCamera>
> </Viewport3D.Camera>
>
>
> <ModelVisual3D>
> <ModelVisual3D.Content>
> <GeometryModel3D>
> <GeometryModel3D.Geometry>
> <MeshGeometry3D Positions="0 0 0, 0 1 0, 1 0 0, 1 1
> 0"
> TriangleIndices="0 2 3, 0 3 1" />
> </GeometryModel3D.Geometry>
>
> <GeometryModel3D.Material>
> <DiffuseMaterial>
> <DiffuseMaterial.Brush>
> <ImageBrush ImageSource="Images\pic_011.tif" Stretch="Fill"/>
> </DiffuseMaterial.Brush>
> </DiffuseMaterial>
> </GeometryModel3D.Material>
>
> <GeometryModel3D.BackMaterial>
> <DiffuseMaterial Brush="Blue" />
> </GeometryModel3D.BackMaterial>
>
> </GeometryModel3D>
> </ModelVisual3D.Content>
> </ModelVisual3D>
>
> <ModelVisual3D>
> <ModelVisual3D.Content>
> <AmbientLight Color="Yellow" />
> </ModelVisual3D.Content>
> </ModelVisual3D>
>
>
> </Viewport3D>
>
> <Rectangle Stroke="#FF000000" HorizontalAlignment="Left"
> VerticalAlignment="Stretch" Margin="17,20,0,19" Width="283" Height="Auto"
> x:Name="Rectangle">
> <Rectangle.Fill>
> <ImageBrush ImageSource="Images\pic_011.tif" Stretch="None" />
>
> </Rectangle.Fill>
>
> </Rectangle>