Redesigned the automap to alleviate slowdown evident on large maps. Rather than traverse the world each render frame, allocate space to store a copy of the map and only update when necessary (e.g., a new linedef is seen for the first time). Take advantage of OpenGL display lists.
Todo:
Currently, there is no fall back for when display lists are not available (just the Rage chip-set?).
Glowing linedefs don't work currently. We don't really want these in a display list anyway.
Lists are not updated when a plane moves.
Currently multiple display lists are used to group types of automap objects together (seen lines, floor height change lines etc...) however currently because we lack a proper notification system, all of the lists are always rebuilt together. Need a mechanism to determine only those lists that actually need updating.
Added by danij about 16 years ago
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Redesigned the automap to alleviate slowdown evident on large maps. Rather than traverse the world each render frame, allocate space to store a copy of the map and only update when necessary (e.g., a new linedef is seen for the first time). Take advantage of OpenGL display lists.
Todo: