Type: 3D    
    Extension: IFF
      Version: 
  Compression: 
  Color Depth: 
   Maintainer: 
Specification: http://www.mediatel.lu/mmedia/render/h_imagine1.html

TDDD (3D Data Description) is used by Impulse's Imagine 3.0 for 3D rendering data.
TDDD files contain 3D object definitions and can be extended to describe different
types of object information. TDDD data is stored as FORM TDDD chunks using the
Amiga and Electrnic Arts Interchange File Format (IFF).

Imagine 3.0 also supports a Texture File Format stored as a FORM TFORM chunk
in an IFF file. The spec for this format may be found at:

  http://www.mediatel.lu/mmedia/render/h_imagine2.html