ZBrushCentral

Dividing mesh creates hard edges?

ZBrush Usage Questions
#1

Hi! Simple question… I have imported a base mesh in ZB and when Dividing it then I get hard edges on the divided mesh. The base mesh is really low-poly so I was expecting it to smooth all edges like the Hypernurb in Cinema 4D does. Is there some setting I am missing or is this just the way it should be (I have “Smt” enabled).

See attached images that hopefully explains my question better.

Thanks in advance!

// tennet

Attachments

ZGrab01.jpg

ZGrab02.jpg

c4d_HyperNurbs.jpg

#2

It may be that for some reason the edges are creased. Shift+click the Tool>Geometry>Uncrease button before subdividing.

#3

Hmm, doesn’t seem to make any difference Shift-clicking “Uncrease”. Can you (or someone else of course) please have a look at the base mesh?

// tennet

#4

Looks like its just ZBs subdiv/smoothing algorithm on open edges. I checked the model and their are no extra verts etc

#5

Yes, it’s the way the subdivision is done.

#6

the only way to get the smooth you want is in cinema 4d. apply a hypernurbs on it and export. then use zbrush for detailing. what do you want to generate in zbrush anyway?

#7

Thanks guys, then I know it’s ZB. :slight_smile: I used a level 1 Hypernurb in C4D and exported it again. Works fine, thanks NoobVee.

It is actually the start of a plant I'm modelling. Attached is a test I did with the old (non-smoothed) mesh. Since the "leaf" is supposed to be very thin, with visible thicker grains in it, and the bottom root/base will also be thicker (see attached).. would you recommend me to use a mesh like this with thickness instead of a one-sided mesh or what is best? I imagine I will get in trouble with mesh-distortion when detailing the thin leaf (i.e. backside is pulled through to the frontside or vice verse)? Any tips or ideas is very welcome.

Thanks again!

// Tennet

Attachments

ZGrab01_green.jpg

ZGrab01_thickness.jpg

#8

I think you’ll get a better result if you model with thickness. And you can stop any sculpt-through problems by turning on Backface Masking in the Brush>AutoMasking submenu.

#9

Hi Marcus, Thanks! Backface masking helped a lot, but is it possible to block geometry from being pushed through other surfaces? Backface Masking doesn’t seem to block this from happening, so I can still push details through the backside surface.

// tennet

#10

well just play with the other brushes such as Standard and Inflat. they have different property.

#11

By pushing geometry through a surface I mean using Zsub on any brush (-intensity).

// tennet

#12

You can’t stop geometry being pushed through. What you can do is color the backface so that you can easily see where you have gone too far.

#13

That’s a smart a solution. Thanks again Marcus! :slight_smile:

// tennet