Peruse 3D Viewer Camera

The Viewer Camera tools provide preset camera options to quickly move the model to a specific orientation based on 3D coordinates.

To change the rendering, open the display mode fly-out menu and select one of the nine options:

Name	Icon	Description
Iso View		Isometric view orients the model so the angles between the XYZ axes are equal.
Orthographic Projection		This projection displays the view in a fixed depth. The model does not scale X and Y coordinates depending on the Z coordinate so the direction of the projection is perpendicular to the camera target plane.
Perspective Projection		This projection displays the view with depth. The model scales the X and Y coordinates depending on the Z coordinate (depth) so objects that are further away appear smaller on the screen.
Left View		Orients the model to view the left side (ZX).
Right View		Orients the model to view the right side (XZ).
Bottom View		Orients the model to view the bottom (YX).
Front View		Orients the model to view the front (ZY).
Back View		Orients the model to view the back (YZ).
Top View		Orients the model to view the top (XY).

There are two ways to show the model in the 3D Viewer area:

Perspective - This type displays 3D images and depth relationships on the two-dimensional surface of the viewer area. In other words, images will appear to have vanishing points and depth within a View, representing a "natural" view of a 3D image.
Orthographic - This type has perpendicular lines and no converging points; may be preferred for technical purposes, such as use with displaying Alignment reports.