So.. I got a mesh, lets say level 0 is 2900 tris, I want to render it at level 3. I'm using Arnold, if it matters. Is there a way to predict how the Ptex will be laid out on the target level in a program like Mari or Mudbox? I've tried bringing level 0 into Mudbox, subdivide it 3 times, paint the Ptex, export, and then…