The Lighting Options dialog (accessed from Lighting Options of the Display Options dialog) uses a light source defined by a lighting angle. The direction of the lighting angle can be set using the Lighting Options dialog. This dialog contains a diagram of a sphere which is shaded according to the current setting for the light angle. The light angle can be changed simply by clicking on the sphere with the cursor at the location where a direct ray from the light source to the center of the sphere would strike the sphere.
Related Topics:
Shade
Shading Options