ZBrushCentral

Holes through objects? (Beginner question)

ZBrush Usage Questions
#1

I know this may seem like a silly question, but I can’t figure this out for the life of me. My last question was answered very quickly, so I thought my best shot would be posting here.

I’m modeling a blade, and in the center I’d like to place four oblong holes all the way through the model,to act as “blood drains”. Originally, I just masked the four shapes on both sides using symmetry, inversed the mask and tried to use Zsub and a few types of brushes to just “eat through” the blade. Of course, this just left me with a thin layer of mottled polygons near the bottom of the hole.

Next, after some research, I found there was a “hide points” option. I tried this, but my holes came out very blocky, and I couldn’t seem to smooth this. Additionally, when looking through the holes made via the hide points, the interior of the model looks empty, and I see no option to turn on double sided polys.

So more or less, how can I create holes in a model that go all the way through? I know I must be over looking something simple, but I can’t figure out what I should do. Any help would be greatly appreciated!

#2

If you cut out one square polygon, then when the model is subdivided the hole will smooth to become more circular.

This shows how to cut a hole through an object and construct walls to fill in the gaps. http://www.pixologic.com/docs/index.php/Topology:_Mesh_Editing

#3

Ah! Thank you once again Aurick, the tutorial was extremely helpful. I had even looked at the documentation and skipped over mesh editing because I didn’t think it related. Now I’ll finally be able to finish my model!

#4

Okay, I feel a little silly asking yet another question, but if it means this or not figuring out what I’m doing wrong, I’m definitely going to ask.

I followed the tutorial word for word, but when it gets to the point of using topology, I add my mesh via the Rigging: Use Mesh button, then go to Topology: Edit Topology. When I do this, topology lines do not show up anywhere on my model, my cursor does not change over points, nor can I select anything. I’ve been reading around the forums for quite a bit now, and anything suggested to fix this method doesn’t work. Ctrl+Shift+click didn’t work, using Ctrl to select a new starting point didn’t work. As a side note, I’m using version 3.1

Once again, help would be greatly appreciated!

#5

To edit topology as opposed to creating new topology you must also click Tool>Topology>Select Topo and choose the same model again. Then you can turn on Edit Topology.

#6

Ah! The tutorial didn’t say that =P

Either way, it worked perfectly, thank you!