ZBrushCentral

Clean masks?

ZBrush Usage Questions
#1

Hey guys, I’m not sure what I’m doing wrong here so maybe someone can help. I was just testing out the new masking and clipping features, but I can’t seem to get a nice clean mask onto the end of this cylinder, even at over 2 million polygons. Here’s all I was doing:

  1. With radial symmetry on, drew out a mask of the circles.
  2. inverted the mask.
  3. drew a straight line down about 1/4 of the way through the cylinder with the trim curve brush to pull back the “holes.”

The masking is all pixelated and not what I was expecting. Any ideas?

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#2

Looks like you need to divide your geometry more times…

#3

2m is more than enough. It’s the mask that is the problem.

#4

you’d think 2 million+ would be enough to produce a clean result.

#5

1.-In the example you show:you used the primitive(cylinder3d) and then convert to Polymesh3d? The way that poly are constructed in the primitive dont help to much to a very clean mesh.
2.-So, i think the problem is not the 2 million but the geometry it self
3.-Try to construct the same geometric figure you want in shadowbox using the lazy mouse and backtrack to get crips line…(pag.35.Whats New …guide)
ps:this is a theoretical aproach… still waiting my email:D

#6

It would be enough if the polygons were evenly distributed but with the parametric cylinder they are not - the ends are a lot less dense than the side (just draw a mask on the side to see the difference).

If you initialize the cylinder with a lower VDivide value before creating the polymesh when you subdivide the polygons will be more even. Turn on polyframes so you can see what’s happening (Shift+F).

#7

Hi Marcus! Hope you are fine!

#8

Hi Mario, I’m fine thanks and hope you are too.