w zakładce processing masz opcje dotyczące pamięci. może to pomoże.
i jeszcze na cgtalk napisali:
I cut the BSP numbers to half of what it was (15,25) and this worked like a dream.
a autodesk radzi:
* If you are running on a 32-bit system, try rendering on a 64-bit system. On a 32-bit system, you have access to at most 2GB of memory.
o On 32-bit Windows XP, you can try setting the /3GB switch to get access to more memory. On Windows Vista and later versions of Windows, use the IncreaseUserVA element in BCDEdit.
* In the mental ray renderer options, go to the Optimization tab and set a memory limit (for a start, try half of the available RAM as a limit eg 1024 on a 32-bit Windows box).
* Try using the Optimize for heavy scene settings.
* Render from the command line with xsibatch.
* Don’t try to render large frame sets (eg 100 frames). Instead, render one frame at a time.
* Try setting the MI_FORCE_OLD_BSP environment variable to force the use of BSP instead of BSP2.
* What render settings have been changed from the defaults? Try adjusting those.
For example, if you changed the Antialiasing settings you may need to adjust those.
* How large are the textures being used? Can textures be memory mapped?
tylko to ostatnie to z xsi ale może coś się da zaadaptować :D