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In literature, person is used to describe the viewpoint from which the narrative is presented. Although second-person perspectives are occasionally used, the most commonly encountered are first and third person. Third person omniscient specifies a viewpoint in which readers are provided with information not available to characters within the story; without this qualifier, readers may or may not have such information.
In movies and video games first- and third-person are often used to describe camera viewpoints; the former being a character's own, and the latter being the more familiar "general" camera showing a scene. The second-person may also be used.
For example, in a horror film, the first-person perspective of an antagonist could become a second-person perspective on a potential victim's actions. A third-person shot of the two characters could be used to show the narrowing distance between them.
In videogames, a first-person perspective is used most often in the first-person shooter genre, such as in Doom. Third-person perspectives on characters are normally used in the adventure genre, for example Resident Evil. Since the arrival of 3D computer graphics in games it is often possible for the player to switch between first- and third-person perspectives at will. This is often to improve accuracy of weapons use in generally third-person games, or to give a better idea of the positioning of the player's character in a first-person game.
Text-based interactive fiction conventionally has description written in the second person (though exceptions exist), telling the character what she or he is seeing and doing. This practice is also encountered occasionally in text-based segments of graphical games.
One of the few examples of a second-person perspective in a modern videogame is in Metal Gear Solid. During one set-piece battle, attempting to enter the first-person view instead shows the antagonist's view of the player's avatar. The concept of a Second Person Shooter has also been explored by artist Julian Oliver.