PresetLightingDirection Property Example
This example specifies that the extrusion for shape one on myDocument
extend toward the top of the shape and that the lighting for the extrusion come from the left.
Set myDocument = ActivePresentation.Slides(1)
With myDocument.Shapes(1).ThreeD
.Visible = True
.SetExtrusionDirection msoExtrusionTop
.PresetLightingDirection = msoLightingLeft
End With