Huge Poly counts and Octane.

Mon Apr 23, 2012 10:06 am

I have an embarrassingly huge file of about 7.5M polys and counting I am testing with. I figure when I finish it, it will be around 10M or so. Has anyone tried to render something this large or larger in Octane? It just seems that it would not be possible with one card. Seems like it would take at least two cards with maybe 3GB of memory on each of them.

Mon Apr 23, 2012 12:42 pm

The number of cards is irrelevant, the scene must fit in every gpu memory.

One card, one memory.
Two or more cards, the lowest amount of ram is your limit.
One card, two gpu´s, the memory is used by both gpu´s so you must divide the amound of ram by two.

face

Mon Apr 23, 2012 6:59 pm

So, sounds like models that are extremely complex then are out of the question for GPU rendering. My GTX260 only has 896Mb, and it chokes on simple textures and roughly 2M polys. At 10M polys it seems I would need about 5Gb of memory on each card. I don't think I've seen a a card that goes above 3Gb.

Mon Apr 23, 2012 7:16 pm

There are quadros and teslas which have 6gb.
It´s only a question of money but for a job it can be a option.

face

Mon Apr 23, 2012 8:13 pm

Man! Those are out of MY price range. Looks like I'll have to optimize my model for different cameras and let the stuff behind the camera go very lodef poly. That's a pain until Octane allows multiple meshes. Then I can build the scene from "building block" parts, switching to lodef when needed for those parts that can't be seen or aren't that detailed in the reflections.