Perspective View

Open the 3D model in the working window. Set the model to a perspective view:

On the tab, in the Projection group, select Perspective. (Ctrl+D).

When Perspective is enabled, the model will always be displayed in a perspective view in the projection you selected. Set the perspective view off by clearing the check box.

Perspective View by Default

You can set perspective as the default projection as follows:

1. Select >  User Preferences >  Drawings, Models.
2. Select the Usage tab.
3. Select Model: Perspective View by Default.
4. Confirm by clicking OK.

View Settings

Example - Front parallel projection.

Projection from the front in a perspective view.