Hi. I’m pretty new to Zbrush. Please tell me how to make sharp corners after I applied GroupLoops. What tools are best to use? On the screenshot I drew with red lines what result I want to get.
Hi @shtiv93 ,
This is actually a fairly complicated subject as it relates to how subdivision smoothing works in the program. Please be aware that even if you produce sharp corners with these functions, lower resolution (lower poly) geometry will soften when it is subdivided if subdivision smoothing is active unless it is creased.
Please review these articles on Subdivision in Zbrush, as well as Creasing.
Both the Group Loops and Panel Loops function are tuned to help users make fast changes to models with complicated polygrouping, generally at polycounts that would defy easy modeling operations. They should not be considered precision modeling tools. ZModeler is a precision modeling tool for lower poly meshes.
The higher res the mesh is, the more the polygroup will maintain its shape with Group loop or Panel loop situations. Try first subdividing your mesh before the operation to produce Loops that hold the shape of the polygroup better.
Otherwise you can improve the sharpness of corners with the Group Loops function by:
- Reduce the GPolish slider to zero.
- Disable the “Triangle” button.
This will produce an interior polygroup with sharper corners IF you have well defined sharp corners in your polygroup. I don’t see any particularly sharp looking corners to your polygroups. The ends all look a bit rounded even before the operation.
Again however, unless they are Creased those corners will soften if you plan on subdividing the mesh, as you may do in many workflows.
To be honest, Im not sure how you ended up with the results I see here. It may be useful to see your polygroups before the operation to get a better idea of what you want to do. Remember that the Group Loops function inserts poly loops around all the polygroups, so if two polygroups are directly adjacent to each other this may squeeze some loops in between them that complicate that area.
Thx for answer. I got a decent result simply by increasing the number of polygons.