Well, after working on getting the majority of the .ter and .mod file formats reverse-engineered, I figure it's time to bite the bullet and figure out the last major part: the BSP/octree data. It is unsure whether they use BSP or an octree in the .ter files as of yet, so that's what we need to figure out first. I'll be honest, I don't know my ass from a hole in the ground about either, so I'll need some assistance on this one.
If anyone has any tips as to how to tell whether a BSP or octree is used, please let me know. Likewise, if there are any suggestions as to the potential structure of this data in the file, let me know please.
http://home.archshadow.com/~daeken/anguish.bin is a dump of the contents of ter_island.ter from anguish.eqg starting at 0x0de6 and ending at 0x13b1 (inclusive)
That should be the data storing the BSP or octree.
Happy Hacking,
Lord Daeken M. BlackBlade
(Cody Brocious)