SMF - Just Installed!
I've managed to create the robe as you posted (but with a more wrose palette) and I have the same problem as you show in the screenshot. The "tabard" shows black/mirror instead of transparent.
Would love to add some stuff from The Sims Medieval but I think they come with a lot of polys.
We like lots of polys.
Haha I know it doesn't perfectly but man they look awesome!! (skyrim models).
By the way, is there something like NWNArmory to convert robes to its mounted versions?
I don't think so, no. You have to rename the models manually, both the file and the reference to it in the model itself, to whatever phenotype it is meant to address.