problem with sculpting and painting

[system]

Hello.

I have a problem. I’m sculpting and poly painting a bat wing model. I’m using the standard brush with a rect stroke. The problem is that when i scuplt one side of the wing, the other (opposite) side is also sculpted, and in a negative value. No overlapping UV’s on the model.

Any idea why is this happening?

[aurick]

In the Brush palette, turn on Back Face Masking

[system]

Thanks for your reply. That solved the problem.
Still, i noticed that with this option negative values (zsub) don’t work. Am i doing domething wrong?

Thanks again.