FOV

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FOV

Field Of View is a traditional photography term, meaning the area that the viewer can see in the RT3D scene. The FOV is usually defined by its width in degrees. A typical FOV in RT3D games is around 45 degrees. A really wide FOV like 90 degrees allows the viewer a panoramic view, but can seriously lower the frame rate because so many polygons are visible. It also produces distortions in the scene, where objects in the center of the view appear to be farther away than they are, and objects at the periphery appear to be really close. The trick in RT3D is to lower the FOV as much as possible without impairing too much of the view. See also frustum.

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