Creating 3D Videos in SweetHome3D

Very easy, takes one minute to learn.

http://www.sweethome3d.com/userGuide.jsp#otherFeatures

Thus, may be interesting to create 3D videos of other machine walk-throughs in SweetHome3D via export to OBJ? This is the easiest way to create 3D animations fro any software that I've seen, so it is quite satisfying.