Thanks guys - much appreciated! This will give us something to try out.
Makes me all warm and fuzzy using Arnold ;) BSP settings - shudder!

Morten



Den 17. februar 2014 kl. 12:48 skrev Stefan Kubicek <s...@tidbit-images.com>:

> Try disabling as much as you can (e.g. turn off Light cache and Irradiance
> map and use brute force instead). If that reduces memory consumption your
> problem might lie there.
> Make sure you are writing a new Irradiance map file and that you are not
> constantly reading from, and adding to an existing irradiance map.
> Same goes for the Light Cache. Displacement and Subdivisions are another
> good idea, as was already mentioned.
> Other than that it could only be corrupt geometry. Remove objects biut by
> bit and see if it helps. All of that is annoying when you have little time
> to f#&% around of course.
> 
> > 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
> > <mailto: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/>
> 
> 
> --
> -------------------------------------------
> Stefan Kubicek
> -------------------------------------------
> keyvis digital imagery
> Alfred Feierfeilstraße 3
> A-2380 Perchtoldsdorf bei Wien
> Phone: +43/699/12614231
> www.keyvis.at ste...@keyvis.at
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