hi can someone help me with remeshing in zbrush

lasagnaman

ok i took my clothing from marvelous designer took imported it into zbrush and i remeshed it 

to bring the points down and it broke apart from the seams and shattered 

does anyone know why that happens and how to fix it  ty so much 

Richard Haseltine

This is using the ZBrusg retopology tools? What steps are you using, from MD export through ZBrush Import and then the Remesh?

lasagnaman

hi this is whats happening 

lasagnaman

this is how i exported it 

Cris Palomino

Were the parts welded when you exported from MD?

lasagnaman

yes 

lasagnaman

seee what i mean  this is terrrible what good is zbrush if you cant even put detail on it without it messing up  this is so ridiculus and very aggrevating  

Richard Haseltine

What are you doing in Zbrush, or is that the way it loads without any further action? I can't imagine it matters for the issue at hand but I notice you do have two sub tools for the shirt

lasagnaman

yup i was tring to project the details back  but look what happend 

Richard Haseltine

Yes, but please five the actual steps used.

duckbomb

If by "add detail" you are talking about brushing and sculpting, Zbrush will do some nasty stuff like that when your mesh is thinner than your brush.  You need to enable "backface madking" to prevent this.  It could even affect your smooth brush, if that's what you are using.

This is assuming the issues are starting once you start sculpting...  I agree with Richard, listing out the steps you are taking in full is required for us to be able to get a full picture without guessing.

lasagnaman

hi no it’s when i remesh and then devide

lasagnaman

divide

 

duckbomb

Ah!  Well that makes some sense, then...  Using Zremesher is an automatic way of retopologizing, but it isn't smart enough to always know what you want to do.  Zbrush won't make the decision to weld stuff, or cut parts of your mesh that should be, unless you tell it to.  My guess is that there's a lot of Geo that isn't welded, and remeshing a small problem is causing a larger one.

If you Zremesh at a high enough resolution, your polys won't move and it will look ok, but when you subdivide it you will average out those verts and holes will form.

Those jaggies tell me that the mesh coming from MD has probably got some overlap, or shared verts, or some other version of messy mesh.  There's just not much in Zbrush you can do with that, in my experience, short of zooming in and with the Zremodeler brush verify your mesh integrity.

I don't know for sure, and I'm not an expert, but in my experience every time I got the results you showed us from either a remesh or a subdivision it always came down to bad mesh integrity.

lasagnaman

oh i see.      so what you think   have any ideas how i can fix that and by the way i really appreciate you helping  me thumbs up for you my friend 

duckbomb

Well I'm happy to help, but I'm really not the biggest expert of Zbrush, I only dabble and build simple props.

The first thing you can do to try is to run a "close holes" under "modify topology".  This will close holes, but also create poly groups where the new polys are created, so you'll need to add them to the right group after.  After closing holes, you can try zremesh.

Another option is to do a few smoothing iterations in the modifiers menu.  This will effect the entire mesh, and will probably make it look worse, but it could show you where the holes are.

These are both starting points only, though, and can help you identify the problem, but how you fix it will be dependent on where it is.  Usually, though, the process is smooth it out to find the broken mesh, delete the broken mesh, clean up edges, and then stitch back together.

The only last thing I'd say is that it most likely is easier to start with MD, or wherever the mesh is starting with.  Your only going to end up hacking this thing apart, anyway, so it might be easier to start at a point where you know the mesh is good, probably still in MD, and fix it there before bringing it into Zbrush...

lasagnaman

ok now i want to take a hoodie i made in md and bring it over to zbrush 

but when i do i cant take the logo i put on my hoodie over to zbrush how can i do that does anyone know how to do that 

when i imported it into zbrush the logo is gone  how can i get it back