ZBrushCentral

Computer for Zbrush?

I’m building a new computer and i would like to hear from people that run zbrush with little to no slowdown or from anybody really. My current comp is a pretty decent comp but it still suffers from some slowdown when at 1.5 million plus when rotating, undoing and transpose masking at higher levels, that sort of stuff. I want a computer than can handle zbrush with zero slowdown at least up to 5 mil poly, 12 would be ideal. Any suggestions for parts? Thanks.

Zbrush wants the most powerful multicore (Quad or better) CPU you can afford, 64 bit OS, 4GB Ram minimum, and a fast Hard Drive couldn’t hurt. Mid range GPU would probably be fine. Upper end lag is inevitable on any system, however, and until ZB goes 64 bit, there will always be a memory ceiling there.

Actually ZBrush is a 32-bit software, so I donno how well it would use 64-bit features if at all. I could be wrong, I’m no programmer. :X

Zbrush is not fully 64 bit, but it will take advantage of 64 bit OS to an extent. It’ll only use up to 4gb of ram, but 32 bit OS have per program limits below that. It makes a significant difference. Last time I checked, anyway.

Regardless, nobody should buy 32 bit OS who doesnt have some pressing business related legacy software issue. And ZB will be fully 64 bit, reportedly in the next version.

http://www.newegg.com/Product/Product.aspx?Item=N82E16819103913

Do you think that processor + 8 gigs of ram (I know I won’t use that much for Zb) will provide 0 slowdown at 12 mil polys?

Thank you for replying.

I think 6GB minimum RAM would be better. 4GB for ZBrush and 2GB for OS.

Ive got a 64bit machine, 12gb ddr3 ram and 2 quadcore i7 processors, plus a good graphics card, I still get slow down after 2mil polygons, and crashes 2-3 times a day.

maybe once the software goes fully 64bit that will change.

as the software only utilises 4gb of ram your best bet for better performance is in processor count coupled with a good mother board. 4 x quad core maybe.

That sucks. Maybe I won’t even upgrade.

I have i7 with 6GB RAM and a Radeon video card (HD5850), it’s working fine…

I’m sorry. Something is amiss with you locally.

Ive got a significantly less poweful machine on win 7 64, and Zbrush sculpts and navigates on single meshes (not counting subtools) at 12 to 15 million polys like butter. I’ve successfully worked on and saved 20+million poly single meshes. It is remarkably stable during normal operation (although everyone’s workflow is different, and some people might do more problematic things, and certain memory intensive operations are simply prohibitive on the highest resolution meshes).

Unless you are defining slowdown by some impossible standard, I think you have some other problem.

Things that will slow down Zbrushes’ performance are polyframes on dense meshes, and partially hiding geometry on very dense meshes, because it disables geometry preview downgrade(Qtrans) when transforming (In that event, make sure only the minimum geometry you need to sculpt on is visible, or consider forcing Zbrush to preview models as point clouds during transformations in the preferences).

Do you think the processor I linked to in that other post will handle Zbrush at those levels (with appropriate ram, other stuf…)?? Thanks.

Bump.