Revision 9af8ab28

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Continued work on the materials system as some of the bugs reported with the unofficial svn rev #6160 release will be fixed in the process:

Get the materials manager up and running as early as possible, just before the definitions are read in Def_Read().
Added Material definitions (only available in _DEBUG builds atm since this is very early stuff) - this can be used to override the materials generated automatically from the TEXTURE1/2 defs, the flat lump list, sprites and ddtextures. It is now possible to reference a new material defined only in a DED to be used on a world surface e.g., sector floor/ceiling in the WAD map data itself. I will continue to expand the Material definitions stuff and make available in release builds when fully tested.
User-created Material definitions now override those which are automatically generated.
Store materialtex names (e.g., the name of the texture from TEXTURE1/2 or the lump name in the case of flats) in materialtex_t and hash them for fast(er) lookup.
Postpone determination of a materials' environment class (for sound processing effects like echo) until it is needed. As materials are now generated before the definitions are read; we do not have the knowledge at this time.

Doomsday Engine