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Insufficient relocated memory

ZBrush Usage Questions
#1

I recently get this error a lot: “Insufficient relocated memory”.
For example when I try to export a high detail .obj file (around 1.9 million
polygons).

What can I do about this?

I will try defragmenting my harddrive, but I also seem to remember someone mentioning something about ZBrush being Java based, and therefore you could increase the amount of memory that’s available for the program in a textfile
somewhere 9as oppposed to in the prefs).

If that’s the case , where can I find that file ??

thanks

#2

Hi,

I think you might have heard that the ZBrush installation process is Java based. ZBrush itself is certainly not.

Unfortunately there is a limit to how many polys you can export. I just tried at 2.1 million polys and it worked fine but I remember there being a limit.

I am running ZBrush with 2 GB ram and at the time of export I had just over one gigabyte of free memory within ZBrush. You might try disabling Tool > Export > Txr (UV Coordinates) and Tool > Export > Grp (Groups) to minimize any overhead. Also, leave Preferences > Mem > Tool Undo at 1 (the default), Zbrush will still reserve multiple undos if there is enough memory.

#3

I’ve been getting this same error.

Disabling UV Coordinates and Groups, as well as reducing number of undos, made it possible for me to increase my exportable model size from about 2 million polys to 3.75 million polys. In actuality, it meant I could up my model to the next subdivision level (900k to 3.75 million polys), and that had a HUGE impact on my detail level.

Now if ZBrush would simply generate normal maps on models at the highest division level, I wouldn’t have to WORRY about exporting my almost 4 million poly mesh in order to generate normal maps in another package.

I hope they take care of that in Zbrush 2.5, assuming they ever actually release 2.5.

#4

Wind_of_Change, I am not sure I understand. ZBrush always compares the current subdivision level to the highest subdivision level when creating a normal map.

#5

There are two fixes to this I have founnd

1 use the mac version, it has a rewritten obj exporter that supports higher poly counts

2 probably a better solutiion. Close ALL programs and kill anything you can in the systray. Kill any processes in the background that you can.

in preferences:mem raise the compact memory slider to 1024 2048 or even 4096 and try to export
if that dosent work raise it all the way : ) Dont keep it set that high tho, it will cause major instability : )

S

#6

I’ve had a problem where my displacment maps work fine and in themidst of fine tuning after 10 renders or so I get a “Mental Ray aborted due to issufficient memory”. Deleting Maya’s preferences file and rebooting don’t help. Has anyone else run across this?