The graphics display of your model is referred to as a view of the model. It also can be referred to as a scene. How the view looks will vary based on the settings you apply to the view. The contributing elements are visual styles, lighting, and camera projection.
Visual Styles:
Visual styles define the way the model faces and edges appear in the view. There are several standard visual styles to suit various modeling needs. Visual styles include different combinations of visibility of the mesh, feature lines, and shading.
Camera Projection:
Choose from either orthographic or perspective projection. When modeling orthographic projection is often easiest to use, whereas when creating realistic imagery, perspective is the preferred view projection.
Lighting:
Refer to the Lighting section of the page discussing the Graphics Tab of the Application Options dialog box.