ZBrushCentral

Why is ZBRUSH 4 not 64 bit???

ZBrush Usage Questions
#1

I’m getting more and more agitated working on a high polygon object (21 million polygons) every time I change subdivision levels to save the model (from 7 to 1) Zbrush Crashes. I reduced the amount of Alpha brushes to 4 as well as my texture count in spotlight to the same in order to hopefully free up more RAM as this is what Zbrush says is the cause of it crashing, I have an 8 core I7 machine with 8 gigs of Ram running windows 7 64, I have ample system recourse to handle working on mesh of this level. I’ve gone as far a submitting a ticket to the pixologic help desk. I can seemingly get one level reduction and save in before it crashes but the next time I go to reduce it runs out of mem. Is there any chance of 64 bit version of Zbrush coming soon, because 4 gigs of Ram is not enough for the detail level required on todays highend models.

Does anyone have any tricks that they have discovered in order to keep ZB from going down when working with hirez meshes, compacting memory or any other tricks, because I’m at a loss, and I really dont want to have have to switch to mudbox, but they have a 64bit version and I’ve lost or 5 hour of work this weekend and really dont want to wast any more time. Thanks for your time.

#2

I understand your agitation at Zbrush not being 64bit. I myself am running a system with 24gb of RAM and all of it is just sitting there waiting for zbrush… :frowning:

As to helping you sculpt at higher subD levels you can always break the mesh into smaller chunks that zbrush can handle. I rarely need to use over 8million polygons on a mesh to achieve the level of detail required for sculpting.
I am curious to see what it is that requires 21+ million polygons.

You can also use HD sculpting to achieve as many polygons as you’d like…in case you’re going for pore level detail on an entire body.

Good topology will also help to maintain detail levels where needed.
Are you using layers? Layers will also start to tax zbrush.

sidenote:
Mudbox doesn’t have the same chops when it comes to Zbrush in most cases, it’s texture painting blows Zbrush out of the water though. I use both at work and prefer zbrush over it, even though mudbox is 64bit.

Hopefully zbrush will step up to the plate and offer a 64bit native version with the next v.5 or full update sometime soon. I don’t really need the extra RAM for anything, but it would be nice to be able to use it.

#3

I’m making a leather cowl that has both interior and exterior surface and can not be broken up, there just not enough polygons for the very fine leather cracking detail. I’ve always been wary of HD sculpting but I’m going to give it a shot, I’ve deleted my level 7 and brought the model back to 6 and I’ll now be detailing using HD, I’ll let you know how it works out, thanks for your help

#4

I hope the HD works out for you. Is there a reason that level of detail has to be in the sculpt? Is this going to be printed? I tiling UVset with a nice leather detail would probably work great if this is going to be rendered…and then you can either bump or displace if needed.

#5

I too am agitating at the memory cap on Zbrush. Personally I am often wanting to do pore level detail on full bodies, but I don’t want to use HD geometry because if you ever find yourself really needing to alter your topology you will lose the details that are held by the HD geo. Breaking up my model into several pieces is an idea that irritates me just thinking about it due to the little annoyances that are bound to arise from such a process. I also frequently find myself with a model subdivided to say 6.5 million polies, and all I need is one more subdivision to get the extra detail I need, but nope - there’s that memory cap. Often In such cases I can do the subdivision, and some sculpting, but then Zbrush crashes on save or some other function.

Frankly I’m shocked that Zbrush is not 64bit already. It’s something that should have been done 4 or 5 years ago. The fact that it is still not 64bit is a little disgraceful in my opinion, and it frustrates me to no end to think I will likely have to wait at least one more year until the next version is released (if even then) which is the most likely occasion on which we will get 64bit, unless there is enough pressure from users for a .5 release with 64bit.

I’d love to see others add their voice to this - leave a post here in support of 64bit if you agree and send a ticket to ZB support with your request.

#6

I want 64 bit ZBrush because I’ve reached the limit with my current model and I now have to take it into Maya to get the scene rendered. This issue is one of the most annoying of the ZBrush variety.

#7

Please Pixologic we need zbrush to be 64 bit. :bulb:small_orange_diamond:bulb:small_orange_diamond:bulb:

#8

I too would love 64 bit support. I have a system with 24 gigs of ram just waiting to be eaten by something (other than Maya).

#9

64!!!

#10

yeah, working with 8 miilion polys in ZBrush is fine but it crashes usually at the 30 million polygon mark after a little bit of sluggish editing.

#11

i have the same problems that you have ( even with a good topology )

im going to give a try with mudbox for this project, cuz im going crazy.

( im working with a 19M model and it still crashes (the maximum allowed is 21M )

#12

We need it! We want it! Where is it? Give it now!! 64BIT!!!64BIT!!!64BIT!!!64BIT!!!64BIT!!!64BIT!!!64BIT!!!

#13

Damn I love to see I’m not the only one KILLING for a 64bit Version of Zbrush, I’m in the same situation, I have a 16 RAM with I7 and 64bit Ultimate OS, and its preety pathetic for it to crash on something it could perfectly handle if Zbrush WAS JUST 64bit, WHY DO PIXOLOGIC KEEP ZBRUSH 32BIT THATS PREETY OBSOLETE ALREADY GOD DAMNIT!!!

I’m already thinking of another Software Sculpting solution JUST BECAUSE OF THAT!!!

#14

I would like to hear explanation why its not 64bit. there has to be a reason for this that I just dont understand yet.

#15

So far I didn’t have many crashes regarding poly size but I got huge amount of crashes when trying to create 4k disp map for 18mil model !!! It’s basically impossible !!! I’m praying and praying for R2 to be finally 64bits.

#16

ZBrush is totally limited on my system. I could be working with much higher poly meshes. This needs to happen asap! Or at least an explanation of my it isn’t already 64-bits.

#17

64 bit. Yes Please, long overdue.

#18

I couldn’t agree more. Zbrush already kicks other sculpting programs all over the place but 64 bit would make it hands down the best available. I just can’t see why Pixologic are holding back the software in this respect. I guess we’ll see what will be revealed in a few weeks time…

#19

I Hope Right You Are :stuck_out_tongue_winking_eye:

#20

Sorry I ddint post this sooner, after talking to multiple Reps and Sales people at the Pixologic booth at Siggraph, I was assured 99% that there will be a 64 Bit version of Zbrush 4 R2!!! So stoked that I’m buying another 8 gigs of Ram! Let a 100 million polygon modeling begin!!!