<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<Viewport3D>
<Viewport3D.Camera>
<PerspectiveCamera Position="-4,1,10" LookDirection="4,-1,-10" />
</Viewport3D.Camera>
<ModelVisual3D>
<ModelVisual3D.Content>
<Model3DGroup>
<DirectionalLight Direction="0,0,0" />
<DirectionalLight Direction="3,2,2" />
<GeometryModel3D>
<GeometryModel3D.Geometry>
<MeshGeometry3D Positions="0,1,0 1,-1,1 -1,-1,1 1,-1,-1 -1,-1,-1"
Normals="0,1,0 -1,0,1 1,0,1 -1,0,-1 1,0,-1"
TriangleIndices="0,2,1 0,3,1 0,3,4 0,2,4" />
</GeometryModel3D.Geometry>
<GeometryModel3D.Material>
<DiffuseMaterial Brush="Black" />
</GeometryModel3D.Material>
<GeometryModel3D.BackMaterial>
<DiffuseMaterial Brush="Red" />
</GeometryModel3D.BackMaterial>
</GeometryModel3D>
</Model3DGroup>
</ModelVisual3D.Content>
</ModelVisual3D>
</Viewport3D>
</Page>
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