Using Ptex (*.ptx) in 3DL (solved)

Lissa_xyz

I noticed DS will handle *.ptx files in the texture slots, so I'm trying to run a couple tests. I'm exporting my ptex out of Mudbox, which reimports and reads just fine, but when I load it into the diffuse slot in DS, it's just flat grey and does nothing. Is there anything I need to do to my model in DS to prep it to read ptex properly in there?

/edit
I'm a spaz. I haven't used 3DL in a while that I completely forget some things are only visible at render and not in the viewport. Carry on.