Imagine Object File
Files begin with
'F' 'O' 'R' 'M' ?? ?? ?? ?? 'T' 'D' 'D' 'D'.
This does not distinguish it from the original TDDD format. There does not appear to be any simple way to do that, but you could look for IFF chunk names that are used only in the Imagine format (BBOX, SPC1, PRP1, ...), and that are used only in the original format (INFO, TPAR, EXTR, ...).
- Imagine 3.0 Object File Format
- http://cd.textfiles.com/zoom2/graphics/raytracing/objects/ ...
- http://www.imaginefa.com/objects.shtml (archived in LZX files)
- One of the above samples is also at CLOE.LZH → COW.OBJ