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Cold Winter is a FPS developed by Swordfish Studios.
A demo version of this game is on JAMPACK volume 12.
The 3d files in this demo are contained in the PRDE.DFF archive.
The files in themselves are also called .DFF
These files reference 3d Studio max.
The beginning of these files are:
XX 00 00 00 01 00 00 00
where XX is the number of texture UV coordinates
followed by XX pairs of
texX, texY
followed by
4byteUnknown
then an known number of Vertex arrays:
00 verA verB verC
followed by one 16 byte array
and a scaling factor
SCALE
followed by
01 00 00 00 01 00 00 00
and then XX arrays of
verX, verY, verZ
With XX arrays of unit sphere normals
following with no break:
normX, normY, normZ