CM (file format)
From modwiki
.CM files store collision model data. Collision models are a binary space partitioning based format used for collision detection.
They are most commonly used with maps but can also be used with moveable physics objects.
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Syntax
This information needs ported over
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Export
The creation of a collision model for use with a map is done automatically by the engine upon compile with the dmap console command.
To create a collision model for use with a moveable physics object, from within the level editor, you must select the brushes and/or model. Then click Selection > Export > to CM.
From this point the .CM file must be named and placed in the same directory as the map or model.
