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I am trying to sculpt a human head with dynamic topology. It worked so far but now I am getting artifacts when I use the smooth brush.

And when I use the smooth brush

enter image description here

But other brushes like the clay brush are still working without causing those weird artifacts. enter image description here

Any idea why this is happening?

.blend file

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up vote 4 down vote accepted

Make sure that under Symmetry \ Lock you turn Lock off. You had lock set to x axis. So the smooth brush was still working but the vertices did not move in the x axis.

enter image description here

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Wow.. that was the problem. Thank you very much. – Maik Klein Mar 4 '14 at 16:08
@MaikKlein yes. It took me some time to find out what the problem was as well. good thing you uploaded the blend file. At first I thought you had a nose texture for the smooth brush, but that was not it. – Vader Mar 4 '14 at 16:09

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