Maya .ma matrix scale translation

Question

A perhaps slightly off-topic subject, but Maya is giving me serious grief on a specific scale translation matrix transformation, and I have nowhere else to turn.

Everything works fine with my Maya .ma (Maya ASCII) importer until Maya descides to add an .spt attribute (typically setAttr ".spt" -type "double3" 1 2 3 ;). From this somewhat vague documentation I came to the conclusion that the three .spt values go into the scale translate matrix.

I would very, very much appreciate any pointers you could give me on how to handle .spt in my matrix transformations!

Answer 1

I know this is a nasty hack, but could your importer add in the reverse transformation to undo what Maya is doing to your stuff on import?

Answer 2

I was too tired to think straight, and after some hours of sleep I realized that the problem lie not in the transforms, but in the pivot. I managed to guess how the pivot was constructed, namely from the two attributes .rp + .spt.

Dalai Lama is right about sleep. :)