Hi I am trying to make a circular masking on an object but even if I selected on backface masking it still pass my masking throught all four surfaces of my mesh when I do in frontal view ... why that and how could I solve this? thanks for any answer...
tharle is right... they do work with the masking pen... all you need to do is hold down ctrl and go to brush menu -> Auto masking -> click Backface masking and it is all done.
i'm guessing you only want the very front surface masked? you could try polypainting it using the backface and/or topological masking options and then doing a mask by intensity or similar. my guess is the automasking options dont work with the mask brushes but i'm pretty sure they do with the normal ones.
I don't know if you can automask that kind of stroke/brush type (ones that let you hold space and move them around before applying). So it'll work with some of the maskpen options, just not rec/circle/curves/lasso. You could try maskpen with the dragrect stroke and a round alpha. Or paint the area in first with a normal…