It seems the only way to produce .tdi file from Adobe Illustrator graphics (.ai), would be to first open your .ai file using Adobe Photoshop and export the file from it as bitmap. May require some plugin of sorts for the TDI format. This will be basically a vector to bitmap conversion, so the result may not be poor compared to the original.
Convert Adobe Illustrator graphics to Explore (TDI) & Maya image file (IFF format).
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert ai to tdi on Windows
Adobe Photoshop is great photography editing software that offers numerous features, powerful tools and other breakthrough capabilities to offer their users maximum performance for image editing.
The latest version, Photoshop CC is available through the new Adobe Creative Cloud suite. The previous version was Photoshop CS6.
Convert from ai file
to tdi file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.