Definitions for "Visual Effects"
considered a sub-category of special effects; refers to anything added to the final picture that was not in the original shot; visual effects can be accomplished in-camera (like stop motion, double exposures and rear/front projection) or via a number of different optical or digital post-production processes ( CGI, for example), usually with a computer
change in the elements, characteristics, character and qualities of a view as a result of development. These effects can be positive or negative.
Special effects. A wide range of electronic video transitions and methods of combining video sources. Included are wipes, keys, mattes and inserts.