ZBrushCentral

Polypainting - Disable drawing on occluded polygons

ZBrush Usage Questions
#1

Is this possible? I have a mesh (a shoe) and I’m trying to paint on it. The problem is, that it paints on both sides of the shoe (left and right) and also on the inside. Is there a way to fix this problem?

Oh and by the way: My mesh is not closed. Is this a problem?

#2

Have you tried http://www.zbrushcentral.com/zbc/showthread.php?t=71779&highlight=backface+masking?

#3

Had no time to check this out due to two other projects that had to be finished. It works fine for me thanks a lot :)!!!