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Automap

255 bytes added, 20:26, 11 July 2005
Slightly expanded short section on proper 3D maps; most games nowadays which have them divide 'world' into floors; mentioned Descent
[[Image:Automap.png|frame|[[E1M4: Command Control]] in automap mode. Only the lines the player has seen are visible.]]
The '''automap''' is a map displayed when the user presses the tab key. As all levels in Doom are [[Doom rendering engine|flat when viewed from above]], generation of such a the map is a relatively easily generated by the software and easy task (as compared to later games comprehend by the player. This is in contrast to Doom's close contemporary ''[[Descent]]'', which had true an extremely unintuitive 3D enginesmap. Most of Doom's fully 3D successors, starting with ''[[Quake]]'', thus making it difficult to render have either abandoned the idea of a top-down map automatically), or circumvent the problem of displaying a Z-axis by artificially dividing each level into 'floors' and 'zones'.
The map shows all [[segs]] (segments of [[wall]]) the player has seen since entering the level. Therefore, while it is possible to walk around in automap mode, the map itself will not update: the lines shown in the map are marked by the rendering process, which does not occur while the automap is turned on.
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