Yeah this could possibly be happening, but indeed the scene would have
to be pretty dense. Fire up GPU-Z and see how many vram XSI uses. I know
that for Redshift, the devs had to add a patch just for the 970 to
actually ignore the 500MB of slow memory that Nvidia put on the 970. Or
something like that. I suppose if that section of memory is being
accessed by XSI, and since it's much slower than the rest of the
on-board memory, perhaps that could have an effect like this? I'm
talking a bit out of my area though....
(backstory: When Nvidia shipped the 970, they got a lot of backlash....
the 970 technically does have 4GB of memory, but 500MB of that operates
at a speed that makes it virtually unusable for things like rendering
(and other stuff), and indeed early on caused dramatic performance
problems and slow-downs. So in reality, we only have 3.5GB of usable
memory to render with on that card. I do hope they don't pull that crap
again.)
-Tim
On 5/28/2015 8:51 PM, Raffaele Fragapane wrote:
If your "heavy" scene is truly heavy, past the 3.5GB mark, you might
be bumping into a known design limitation of the 970 that basically
craps itself if memory usage exceeds the 3.5 mark (even if you have 4
on board).
On Fri, May 29, 2015 at 11:37 AM, Leoung O'Young
<digim...@digimata.com <mailto:digim...@digimata.com>> wrote:
No, thanks for the suggestion.
On 28/05/2015 7:46 PM, Sven Constable wrote:
Manipulating heavy geo was a problem with ATI cards, nvidia
usually performes well. Did you add the xsi.exe in the nvidia
control panel?
sven
-----Original Message-----
From: softimage-boun...@listproc.autodesk.com
<mailto:softimage-boun...@listproc.autodesk.com>
[mailto:softimage-boun...@listproc.autodesk.com
<mailto:softimage-boun...@listproc.autodesk.com>] On Behalf Of
Leoung O'Young
Sent: Friday, May 29, 2015 1:20 AM
To: xsi
Subject: Heavy scenes with the GTX 970
We have switched some of our workstation using the GTX 970's,
they preforms quite well rendering in Redshift.
A good bang for the buck. But we find the it is very sluggish
manipulating heavy geometry scenes inside Softimage 2915.
What is a better option?
Thanks,
Leoung
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*Magnetic Dreams, Inc.
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