Shadows
Displays a shadow under the model. When shadows are displayed, the light appears from the top-most part of the model in the current orientation. When you rotate the model, the shadow rotates with the model.
When you have shadows enabled, system performance is slower during dynamic view operations (zoom, pan, rotate, and so on). Shadows In Shaded Mode is not available when an assembly is in
Large Assembly Mode
.
To turn on shadows:
Click one of the following:
-
View Settings
(Heads-up View toolbar), Shadows In Shaded Mode 
-
Shadows In Shaded Mode
(View toolbar)
-
View, Display, Shadows In Shaded Mode
To change the placement of the shadow, turn Shadows In Shaded Mode off, rotate the model, then turn the shadows on again.