You can display a 3-D plot as though you are viewing it from near, a short distance away, or from far away.

Click the plot to select it.

Alternatively, right-click (Control-click, for Macintosh) the plot to activate the context menu.

From the Plot menu, select Orientation, and then Projection. The Projection dialog opens.

Use the slider to set plot projection (near or far).

Click OK.

The projection can also be specified within the plotting command itself.  See plot3d[option] for details.