Can you send a file 3DM with problem ?

Hi Alex, yes like Pilou writes above there is a "Projective" option in Transform > Deform > Flow which works like that:
http://moi3d.com/3.0/docs/moi_command_reference8.htm#flow



A couple of notes - the target object should be smooth and all rays from the "base plane" should hit the target object.

If you are having a problem with it please post the .3dm model file with your objects in it.

- Michael