Very high resolution with high AA and many in-memory Framebuffers could take quite a lot of ram. If that's the case, try to write the framebuffers directly to disk. HDRIs take a lot of memory in V-Ray, make them as small as you can. Look at the log files to see where your memory usage is at. Check displacement settings. It's very easy for a artist to use way to many subdivisions in VRayDisplacement due to the bad interface. Maybe reduce Dynamic Memory Limit if it's set too high.
/Jens On Mon, Feb 17, 2014 at 11:24 AM, Morten Bartholdy <x...@colorshopvfx.dk>wrote: > Apologies for the OT, but I gather there are many Vray users here, so I > thought i would give it a try, as we are in a pinch here. > > > We have a scene with a reasonable amount of geometry ( 8 million > triangles ) and lots and lots of glossy reflections. Vray crashes on the > farm due to memory usage (machines have 24 GB RAM). We are investigating > the culprit, since neither geometry nor textures should use a lot of > memory, and the glossy reflections should not use a lot of memory, onlu cpu > cycles. Ligthing is a mix of HDRI and a few lightsources, so currently we > suspect either light cache and/or BSP setup. We inherited the scenes from > someone else, so we are careful to not break the look, but are looking into > what can be tweaked. > > > Are there some seasoned Vray users here who might be able to point us > to what to optimize for this specific problem? > > > Thanks! > > > Morten > > > > -- Jens Lindgren -------------------------- Lead Technical Director Magoo 3D Studios <http://www.magoo3dstudios.com/>
