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Tiny holes started to show up in my mesh. How to close them?

I was blocking a hair for this sculpture and for some reason tiny holes started showing up. Dynameshing did not close these holes, neither did the close holes command. I even tried to use zremesher but it took too much time do I decided to abbort it. What can I do?

ps.: I’ve used the following brushes: Clay buildup, Move, Inflate and Dam Standard while doing this hair mesh.

I’m not sure how your mesh is constructed, but is it possible the hair piece is an open or 2d volume? Dynamesh doesnt work well with geometry that isn’t a closed volume with a degree of thickness. The usual cause of holes like this when dynameshing is geometry that is too thin, or 2 dimensional.

This goes for most things in Zbrush as well. Most functions in zbrush work best on closed volumes with thickness.


If you have access to a version of the hair before it was dynameshed, you can use Mesh Extracts or ZModeler to extrude a 3d version of the hair. OR you can make sure the hair is completely intersected with the head mesh with no open gaps, and dynamesh will attempt to close the volume and delete the interior overlapping geometry.

Mind, the hair and the head need to be part of the same subtool to dynamesh them together.


Repairing the mesh at this point will be ugly. You are basically going to have to use a clip brush to flatten the problem area close to the skull so that no holes are remaining, make sure there are no gaps between the head and the hair, and hope Dynamesh can fix it then. You will have to re-sculpt the hair back into shape.

Maybe those holes have something to do with the way I initially created the hair.

Initially I duplicated the head mesh and Selected only the area where there should be hair in the head. I used the pannel loops command and inflated it outward (tools>deformation>inflate). Then I split+deleted the area other the head I would not use and started brushing on top of the remaining mesh. I think I also used the close holes command right after this.

I’d rather work on the hair in a diferente subtool. Specially because I was planning it for 3D printing

Then you must construct the mesh in more suitable fashion. A mesh extract is an ideal way to extract a rough mass for hair sculpting on the top of a head. It can then be quickly dynameshed for adequate sculpting topology.


Don’t neglect the introductory sections of both the ZBrush Documentation, and the Pixologic Classrooom. Attempting to use the program’s advanced features without an understanding of the fundamentals will make everything you do more difficult, and take longer than it has to.

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Thank you, @Spyndel! I’ll look into the mesh extract documentation.

I’ve been studying ZBrush following tutorials online. I didn’t read most of the documentation. Sometimes I look into it. But you’re right. I should take some time to read it.