Using Poser Materials in Deep Paint 3D - Method III
Note1 - this tutorial will not make much sense without reading Using Poser Materials in Deep Paint 3D - The Set Up. I can't guarantee this tutorial will make sense after you read it, but I'm reasonably sure reading the Set Up tutorial first will help.
Note 2 - the first few steps in this method will be repeated in the other methods. This isn't just deja-vu.
Method III - Masking the Materials themselves in Deep Paint III
Coming soon. Sorry!
Thanks again to Robin and Peter from Deep Paint 3D whose ideas I tweaked to get this to work for Poser.