Represents the vector along which the light's effect will be seen on models in a 3-D scene.
Assembly: PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
<object> <object.Direction> <Vector3D .../> </object.Direction> </object>
Property ValueType: System.Windows.Media.Media3D.Vector3D
Vector3D along which the light projects, and which must have a non-zero magnitude. The default value is (0,0,-1).