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ZBrush Slow

ZBrush Usage Questions
#1

I find zbrush very slow, specifically at Undos and any operation with the layers (adding, moving, toggling, etc). I have 24gigs or ram, my virtual mem on an ssd, a fast processor, zbrush set to 4gb compact, etc.

I have a 10mil poly sculpt but I don’t think that is the problem. I read that it may be an issue with Zbrush not handling layers that well as i generally sculpt with 5-10 layers active throughout a sculpt. I see the little disk icon all the time and if i try to do anything during that time i get a “Zbrush Executable not responding” dialogue - which i have to wait out to begin work again.

Please help as this makes sculpting very tedious.

Thanks.

#2

Well…if you have 5-10 layers and you’re working on a mesh that is 10 million points you’re actually holding on to the vertex location information for all 10 million points, for each layer. So you’re hitting 50-100 million points held in RAM, which is why you’re seeing slowdown. Is there a reason your mesh is that dense and you’re using 10 layers?

#3

The mesh has to be that dense to capture all the hair detail (animal). It is very optimized too as I Zremeshed many times in order to get the density more where i needed it more.

I try to merge layers as often as possible, but I find sculpting on a series of layers is very nice.

I find it strange that Undo and layer related actions are the only real slow down issues that I have (but they are significant).

#4

1 subtool? Insane. Break it up or hide parts you don’t need to see. Are you trying to sculpt in the hair or apply as a texture map? There’s a fiber material as well as fibermesh…workflow/methods can make or break you. Happy New Year ZBrushing.

#5

I am sculpting the hair since it will end up being created in the real world.

Unfortunately, it cannot be broken up, but i do hide parts of it while I’m working. Looks like the crux of the problem is my layers, which i will just have to merge more often. Thanks for the input beta and Doug.