rerogue/doc/file_hob_spec.txt

4B object count OF. 0 in empty files
4B simple offset to vertices/faces - doesn't work all the time. Probably useless?

OF * object header 116B 
{
  16B name
  4B int facegroups offset
  4B int facegroup header offset
  4B int facegroup header 2 offset
  12B zero
  4B int ? 94, 0xD4
  4B int ? 98, 0x100
  4B int ? 9C, 0x104
  4B float ?:
      -bark_moon, cldcar: 1.0
      -sky, e_cor: 0.2 
      -wmvwing: 1.25
  12B zero
  5x4B floats ?
  4B int offset before 0xFFFFFFFF header end marker
  6x 4B float ?
}

OF * facegroup header 
{
  2B number of facegroups? NOF
  2B number of facegroups? NOF
  facegoup definitions 
  {
    offsets, names, floats
  }  

  4B 0xFFFFFFFF header end marker
}

NOF * facegroup/meshdef0 132B 
{
  4B int
  4B int
  4B int
  4B int
  4B int offset to meshdef1 + 4
  8B zero
  48B 3 * {
    4B float 1.0
    12B zero
  }
  4B int
  3 * 4B float
  3 * 4B float 1.0
  28B zero
}

NOF * facegroup/meshdef1 96B 
{
  4B int facedef end offset
  20B zero
  4B int vertices used
  8B zero
  4B int face def offset
  4B int vertex def offset
  52B zero
}
  
NOF * face block
{
  8B zero
  4B int filepos + 4
  4B int face count FC
  FC * face
  {
    4B int face flags? if bit 3 is set, the face is a quad, otherwise triangle
    1B int 46/49/4B
    1B int 51/71
    1B int 0C
    1B int block size / 4: A = 40B, 9 = 36, etc.
    2B int zero?
    2B int texture/material index?
    4x 2B vertex indices, relative to the face group. The last index is zero in triangle faces 
    x bytes until block size: most probably texture coordinates and some other stuff?
  }
}

Vertices
{
  2B int X
  2B int Y
  2B int Z
  2B int ?
}