ZBrushCentral

Why is Zbrush chugging at 400k total points?

ZBrush Usage Questions
#1

Working on a model in Dynamesh mode, currently with around 400k active and total points. To be clear, I’ve had single models up to 40 million points on this machine without much lag.

After the last Dynamesh, the program is really chugging. I shut things down, restarted my computer, and started a new document and only loaded the one tool I am working with, but the program is still running very slowly.

Additionally, one thing I just noticed is that when I start using a brush on my model, I get a message at the top saying “Subdividing geometry to 7.4 million quad polygons.”

Anybody experience something like this? Anything I can do?

#2

You probably activated Dynamic Subdiv in 'Tool > Geometry > Dynamic Subdiv". Turn Dynamic button off.

#3

I checked to make sure that Dynamic subdivision is off, and it is. Zbrush is running fine now. I had restarted the program again, but this time when I brought my tool in I made sure to click MakePolyMesh3d.

I am a new user obviously, but I thought once a tool had been made a PolyMesh it stayed a Polymesh. Anyway, that seems to have cured the problem. Perhaps I had hit some hotkey to turn Dynamic subdivision on, and by cloning my model with MakePolyMesh3d I automatically turned Dynamic subdivision off?

Anyway, whether that was the issue or not, now I’ve learned something new. Thank you!

#4

Actually it looks like you were definitely correct about the Dynamic Subdivision. I just hit D instead of F and noticed that Dynamic Subdivision did get turned on. I checked the info panel because I thought it might have a hotkey associated with it, but it didn’t show one so I figured it didn’t. Well, now I know.

#5

When you don’t have any normal (classic) Subdiv levels, then D and Shift+D will turn Dynamic Subdiv on and off. If you have more than 1 classic Subdiv level, then D and Shift+D will move you up and down through classic subdiv levels.

#6

http://docs.pixologic.com/user-guide/3d-modeling/modeling-basics/creating-meshes/dynamesh/options/
note second sentence

#7

Ah, thanks. That answered some other thoughts I was having about the resolution slider.

Sometimes it helps to slow down and read the manual. I guess now that the major forms of my model are complete, there is no need to continue working with dynamesh.

#8

:+1:
ZModeler is awesome, grab the closest primitive and start making modifications to it