Just playing with Lattice SOP, it seems it calculates only position delta, but not orientation. Is it a bug in v14 or expected behavior. I'm using first public available v14, 14.0.201.13.
To explain better what I expect to see, but it's not there, there's desired effect of custom deformer at bottom of pic.
I don't have Soft in front of me, but IIRC so does the Soft lattice - at least when you apply it obj level. It might be different when you apply it to a group of points.
Thank You kindly, AdamJ. Anyway, somehow sad to know, how many users of around three another 3d apps, have a wrong thing in mind when it comes to word “lattice”. Poor people… Thanks again.