// textures
motx = new MOTX(databuffer);
// groups
momt = new MOMT(databuffer);
mogn = new MOGN(databuffer);
mogi = new MOGI(databuffer);
// skybox
mosb = new unkChunk(databuffer, "BSOM");
// portals
mopv = new unkChunk(databuffer, "VPOM");
mopt = new unkChunk(databuffer, "TPOM");