ZBrushCentral

How to fill object without dynamesh it?

Hi !

I’m preparing a model for print and it has to be filled inside as its a thin base (3mm).

I have detail on it and would like to keep a crease edges.

I wanted to dynamesh it to fill the insides but then detail is not that good. When I crunk up the resolution of DM it destroys the mesh and when I project detail back to the dynameshed model it’s not the same.

Is there a different method for approaching it?

Thanks,
Michael

Hello Michael!

Tool > Geometry > Modify Topology > Close Holes should close any gaps on your mesh while leaving your creases intact. This will work well for minor holes, but if you try to close large sections of open mesh, there are likely to be deformities.

There are a few issues in your description though that should be addressed:

Creasing is generally required when one is subdividing UP from low-poly topology. If working for print it typically isn’t necessary, because most 3d print software will tolerate decent sized polycounts–nowhere near Zbrush levels, but usually sufficient to capture any detail the print process is capable of replicating. 3D print processes are also mostly unconcerned about topology. Therefore, when working for print, you can usually simply work at the high poly level, eliminating the need for creases, and then Decimate the geometry down into a more manageable polycount for the Pre print software. Edges will stay hard as long as you are working at sufficient polycount.


Obviously, Dynamesh should not be destroying your mesh. This is indicative of some other issue with your mesh or what you are trying to do. We could take a look at it if you wanted to post some pics. Dynamesh will not work well, however, on open volumes or 2d geometry.

Otherwise, Dynamesh does have a practical limit to how much fine detail it can capture. Remember, it is a tool to quickly establish form–not fine detail. If you have reached that limit, then it is time to transition to a traditional multiple subdivision level process for the purposes of fine detail sculpting.

You’ll want to ZRemesh your mesh (or a duplicate of it) to establish clean(er), low poly base topology, subdivide the resulting mesh sufficiently for the level of detail you want to capture, and project the detail from the original mesh onto the new via one of the methods in this link.

Thanks, Spyndel!

Okay, so I have to dynamesh it to get rid off errors in a topology to be sure that the model is clean.

I did as you advised with the zremesher but the end result is not that good (see the image before and after)

Here is an image of a dynammesh:

dm_01

Before remesher:

After:

I think I might boolean the text after I get everything right with the base - do you think its a good idea?

Does boolean operation clean the inside of a mesh like dynamesh does?

I have no idea what’s going on there.

ZRemesher wont fuse any geometry, or fill any holes. You need to clean your mesh before using it, and make sure that any portions that are supposed to be fused together are welded.

Remember, your mesh needs to be a closed volume with thickness to work well with Dynamesh. Dynamesh will fill minor holes, but large open sections of mesh will return poor results. 2D surfaces without any thickness will not work with dynamesh.