How can I mirror and weld this subtool w/ multiple subdivision?

[lowhues]

This subtool has 6 sub levels.

I noticed the rightsize isn’t the same as the left. I need to freeze the subD levels and mirror and wield.

I froze the subDLevels and mirror and wielded it which corrected the issue (I also noticed at this point that one of the center points was off center, but that’s easy to correct if I can figure out what’s going wrong here).

But when I unfroze the levels the asymmetrical issue came right back. What am I missing?

Related question: Does it matter if I freeze at the lowest subdivide level versus freezing at the highest subdivide level?

[tobor8man]

Try Deformation : Smart Resym (hold Ctrl over the button for usage details or search Zbrush docs.)

[Spyndel]

Hi @lowhues

@lowhues

But when I unfroze the levels the asymmetrical issue came right back. What am I missing?

Are you referring to this issue when you say the mesh is asymmetrical?

That would be a flaw in the form of the mesh, not merely the topology. One of the things that happens when you Freeze Subdivision levels is that it projects the detail from the original mesh back onto the new mesh. This would reproject that flaw in the form as well.

What @tobor8man suggested may work. The Smart Resym feature addresses symmetrical flaws in the form of the mesh, but does not change the topology. If you want to be assured of 100% topological symmetry, I would again Mirror and Weld after correcting the form.

An alternative would be to bypass Freezing Subdivision levels, and instead simply delete the lower levels of subdivision and then Mirror and Weld the mesh at the highest level of subdivision. The mesh should now be 100% symmetrical. To regain your subdivision levels you may be able to simply reconstruct them from the new high res mesh. Failing that you can Zremesh a new low poly mesh from that mesh, subdivide, and project the detail manually from the newly symmetrical high res mesh.

[lowhues]

Thank you both. I tried the Smart Resym. Unfortunately it Reymed the incorrect side. I then tried mirroring the correct side so that the correct side was on the other side of the axis, in the hope that it would Resym the side that I wanted but then it still resymed the incorrect side. I’m guessing its something in the history of the mesh that makes Resym determine the side I don’t want is the side Im trying to mirror.

I’ll just have to delete the lower levels and mirror and wield from there, but I appreciate the help!

[Spyndel]

Hi @lowhues ,

With Smart Resym you have to mask the “correct” side before using the function.

Mirror and Weld only works in one direction. This means in some cases you first need to flip the mesh to the other side with Tool> Deformation> Mirror in order to get the intended side to “mirror”.

Hope that helps!

[lowhues]

Oh thanks @Spyndel . That’s good to know. I tried that today. As you know, I was trying the get the shape symmetrical, but I was mainly focused on the hole to the left, under the belt.

I masked the side I wanted to Smart Resym, as you suggested and it appeared to work.

But then when I rotate the view I can see its still not symmetrical when its in a lower res

Oh well, I’ll just go back to deleting the lower subdivs. Thanks again for you help!