ZBrushCentral

ZB Crashing loading tools - urgent help needed

ZBrush Usage Questions
#1

I am trying to work on a very big tool It is currently at around 31 million polys. I just started ZBrush and my latest two saved versions cause the programme to crash. I get this message.

ZBrush Executable has stopped working…

A problem caused the programe to stop working correctly. Windows will close the program and hotify you if a solutin is available.

I can load older versions of the tool, the almost the same number of polys. Fully loaded, with a working version of the tool, Zbrush is only using 1.2 Gig of memory (acording to Task Manager). I hae 8Gig on a 64 bit OS and am not running anything else.

Anyone know what I can do to get these tools to work, and if there is a problem that I can do anything about?

#2

Anyone?

#3

Pretty please?

#4

OK, it was Sunday. I’ll bump this again and see if I get any response this time.

Help would be appreciated.

#5

did you have a Zbrush crash when you were saving those tools? and were you saving them with all the subtools at the highest subd level? It sounds like your tools got corrupted when saving and well, there’s nothing you can do about it that I know of - just go back a couple of versions and work with that.

#6

No, I didn’t have any crashes during saves. If fact, the fact two of the versions that have problems, I was successfull able to load previoulsy.

Regarding the detail levels, is it good practice not to have tools at the highest level when you save?

#7

Anyone?

#8

So am I in the wrong place for this? Should I raise a support ticket or something?

#9

The problem is caused by the large number of polygons. ZBrush is a 32-bit app, so even with 8 GB of RAM the most that ZBrush can use is 4 GB. 31 million polys is seriously pushing the limits of what ZBrush can handle on any system – especially if you have layers or a bunch of SubTools.

Rather than going to 31 million polys you’d be much better splitting that SubTool into two of them. This puts things back down in the realm that is easily managed by ZBrush.

Alternatively, rather than dividing that last time to hit 31 million you could use an HD level. HD can go up to 1 billion polygons, so 31 million becomes really easy.

#10

Thanks for your reply Aurick

I have a couple of questions about this you may be able to answer.

I have no layers, but there are about 15-20 subtools.

If I use HD, will decimation master be able to trasfer it to geometry (this is for 3D printing).

If I turn it into 2 tools (this was the route I thought I would have to take), how do I deal with it when it comes to posing?

Lastly, regarding the memory, with the tool loaded (last version I have), ZBRush is only reporting that it is using something like 1.8 gigabytes, so it looks like it is nowhere near the 4Gig.

Thanks for your help with this.

#11

What are you printing? No technology currently out there can capture all the detail possible with zbrush. You’re not going to get fine wrinkles/etc. How big of a model are you looking to print?

#12

Obvioulsy this will be decimated before printing, but the level of detail that can be picked up is very good. This is for an 18 inch high figure.

Aurick, any views on answers to questions.

#13

I was wondering if there were any answers to the questions I posted a couple of posts ago.

#14

Even if you will do a large print, some very few details won’t be visible. Most of the time, the ZBrush models have more details that the printer can print.
Did you contact the printing company about how much details they are able to handling?

And about the memory, even if ZBrush have some free ram available, some operation can require a -large- amount of memory in a very short time.

#15

Totyo: the is being made for someone else, and he is happy with the level of detail as it is. I’m happy with Auricks answer to my question about why it might crash, just interested in a couple of answers to the following questions…

#16

So maybe I’ll just spend some time trying things out to see if I can answer my questions myself.

#17

  • Decimation master doesn’t support the HD geometry, even if you can trick it by working with partial mesh and then rebuild evreything, but that’s a real trick.

  • Use Transpose Master when working with multiple Subtool and the pose, just avoid placing your cuts on strong deformations areas to avoid the creation of gaps.

I hope it helps!

#18

Totyo: that answers my first question (no point using HD, as I need to decemate for printing).

Second question is though. I was recommended to break my Tool into two tools. This tool as about 20 subtools, so it would be kind of uppder body (10 subtools), and lower body (10 tools). My quesitons was that’s great for scultpting, but what do I do when it comes to posing?

#19

Use TransPose Master

#20

But my question is how do I use Transpose master, on human figure made up of two sperate tools with many sub-tools, when I can’t load all the subtools at the same time? Is there a way using proxys or something or do I have to rely on posing each half seperately?