Box height:

TTD box editor
















 Draw in 3D view:



Open the box:

 Clear to dominant,
keeping transparency:
Sprite:

Save:

Load:
TTD Box Editor, Copyright © 2009 Frode Austvik
TTD Box Editor comes with ABSOLUTELY NO WARRANTY; for details look at the page source.
This is free software, and you are welcome to redistribute it under certain conditions; look at the page source for details.