Hello everyone, i have a problem please i need a help. i try to inset a polygroups in dynamesh subtool (with zmodeler but was a chaos! )so is there any tip or trick for do this? i mean in dynamesh subtool. tnaks so much for your help. Greetings from Machu Picchu - Peru
Hello @udo
ZModeler Inset is a low-poly modeling operation requiring clean, deliberate topology.
Dynamesh is geared to quickly resurface a mesh with topology adequate for sculpting, but does not produce topology suitable for low poly modeling operations.
If you wish to use ZModeler on this mesh, the optimal solution would be to convert this mesh into clean quad low poly geometry. For a shape that appears as simple as your illustration, ZRemesher should be able to do this pretty easily. Since you already have polygroups, the “Keep Groups” option should be able to create topology with edges that fall where you need them. However your illustration may not be telling the whole story with your mesh.
There are a number of quick and dirty high poly approaches I could instruct you on to achieve this, but I judge them all to be strictly inferior in this situation. They would lack the clean precision and flexibility of the low poly operation and not save you a significant amount of time or effort in return.
Good luck!
I’ve assembled a couple examples of approaches you might take. Both of these will leave you with cleaner, more useful topology than trying to do this at high poly without redrawing the topology. Both of these assume your shape is a simple extrusion from a profile which is what the illustration looks like to me.
Faster:
-
Mask the Polygroup on top by using the Polygroup Visibility Shortcuts to make only this polygroup visible then mask it.
-
Shrink the mask area repeatedly with Masking > Shrink, then Sharpen the edge with Masking> Sharpen.
-
Use Polygroup> Group Masked with max polish. You could stop here, but this will leave you with less useful topology.
-
ZRemesher with Keep Groups to clean the topology.
This produces decent topology in the target area, and adequate topology elsewhere on the mesh. Polygroups can be creased and the mesh subdivided further to smooth.
Better:
-
Disable Perspective Mode so you can cut straight through to the other side without distortion, and use the Knife> Curve brush to cut the top of the mesh. This ensures a perfectly flat polygroup with a clean border line.
-
Hide everything but the top polygroup and delete it.
-
ZRemesh the remaining geometry to clean the sub-optimal Knife-cut topology. Keep ZRemeshing by Half until you reach the desired density and you have clean unbroken edge loops around the border of the mesh.
-
Delete the loops around the edges either manually with Zmodeler or with Geometry> Edge Loops> Delete Loops. These loops may limit the size of the inset you could make otherwise.
-
Use ZModeler> Polygon> Extrude> Polygroup Island to extrude the profile into a closed 3d volume.
-
Inset the top polygroup or insert edges to create your polygroups.
This leaves you with highly useful geometry with good quality topology on both the top and sides that can be easily edited with all the Zmodeler functions. After you’ve performed the desired low poly operations you can again Zremesh with Keep Groups to redistribute the polygons and subdivide to smooth. Remember to crease edges to keep them crisp when subdividing.
