Re: particle simulation and video cards

Date : Tue, 01 May 2007 10:31:43 -0400
To : XSI(at)Softimage.COM
From : Todd Alan Peleg <todd(at)theholdingcell.com>
Subject : Re: particle simulation and video cards
OK..

so.. heres my update to the things i could address:

refresh rate is 60, and it is true color.. AA setting was app controlled.. so i set it to off... although.. it was set for the XSI specific setting.. so.. i overrode that.. just in case.

as for opening up and checking the fans and such..i definitely see it on mulitole machines here.. so .. i would think its not a fluke of a problem.. but rather a video card problem specifically.. perhaps even the quadro problem only because all the amchines here have one of two kinds.. and they all perform poorly in one way or another..

i'll check into the remainder of good ideas as soon as i can (middle of deadline crunch of course..

thanks

todd

Tim Leydecker wrote:

"Now I do give my machines a regular brush every few months."

I know it's not Friday, but otherwise.... ;-)


It happens I´ve too much time on my hands today, it´s a bank holiday
I´d have spent adding something to my showreel, unfortunately I ignored
the fact that all I´ve left at home is a pretty much naked barebone stripped
of anything more usefull than that plain old notepad...so, no fancy pictures.


The last resort furry glove massage, (sc)rubbing desperately doesn´t help it,
I´ll have to postpone it some more...until I´ve my gear back. Ah, Fr(y)idays...


But to get back from OT:

How about the display refreshrate set for the boxx machine?

When re-installing nVidia drivers, it´s usually set to "best",
e.g. maybe you´re hammering your display with 80-100HZ,
while your laptop is feed with 60Hz and a lower resolution?

At least with games this may well give a difference in performance,
as well does AA, which I think the Quadro drivers have set to "on"
often, meaning you´ll actually have at least double the pixelresolution
processed for every frame.

Did you try to select the "softimage" or "xsi" preset in the nVidia
quadro driver settings? Do you have AA set to "off" instead to
"by application"? In case you run a TFT instead a CRT, you´ll
most likely won´t have to check the refresh rate, it´ll be 60HZ
but it´s still worth to check that you run in true color mode instead
of (default on install?) 16bit mode, which could also confuse your boxx.

Cheers

tim



----- Original Message ----- From: "Rob Wuijster" <robw(at)condor.tv>
To: <XSI(at)Softimage.COM>
Sent: Tuesday, May 01, 2007 2:22 PM
Subject: Re: particle simulation and video cards


"Now I do give my machines a regular brush every few months."

I know it's not Friday, but otherwise.... ;-)


cheers,

Rob Wuijster

Condor Digital
www.condor.tv
Willemsparkweg 80
1071HL Amsterdam

+31 (0) 20 6712600 (T)
+31 (0) 20 6713766 (F)




Tim Leydecker wrote: One bugger I ran into some time ago, a fluffy ball of dust had brought the fan of my graphicscard to a halt, which resulted in the card speedstepping the GPU and therefore delivering a pretty disapointing performance.

 A saber brush (size 5...)  solved this problem.

 Now I do give my machines a regular brush every few months.

 Cheers

 tim

----- Original Message ----- From: "Simon Pickard" <mail(at)simonpickard.co.uk>
To: <XSI(at)Softimage.COM>
Sent: Tuesday, May 01, 2007 11:15 AM
Subject: Re: particle simulation and video cards




   This is really weird..

   A few things I can think of..

1. In display settings what's the driver listed as on the Boxx? Almost
sounds like it's using the default VGA driver for some reason.


2. Playback can sometimes be more to do with the cpu than the gfx
card. On the Boxx could you try running xsi in a single thread just to
see if that gives you anything different (Goto the xsi process in task
man, right click and set affinity to use just 1 cpu).


   3. Are you running multi monitors on the Boxx. If so try just using a
   single display.

4. If you say "Hello HAL" to your laptop does it reply with "Hello Dave"? ;)

   Regards,
   Simon.




On 30/04/07, Todd Alan Peleg <todd(at)theholdingcell.com> wrote:


i think i said before.. just about 3 times faster on my laptop..

so.. say the 100 frame sequence playing all frames takes 6 seconds to
playback on the BOXX (not exaggerating).. it takes a bit over 2 to play back
on my laptop..


but.. i recently tried an install of the NVIDIA drivers.. by removing the
old one first .. then installing the new one...


i did it 3 times.. the oldest driver for the card.. the newest... and the
SOFTIMAGE recommended one..


none of them made one bit of difference (yes.. i also changed the driver to
the softimage XSI setting in the properties)





Luc-Eric Rousseau wrote:


Well it's very typical to loose proper hardware acceleration after
re-installing Windows and not installing the vendor's driver on top.


also what kind of frame per second are you talking about when you say it's
much faster?



________________________________
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of
Todd Alan Peleg
Posted At: Monday, April 30, 2007 5:04 PM
Posted To: xsi
Conversation: particle simulation and video cards
Subject: Re: particle simulation and video cards


this one was checked and didn't help.. except making my laptop slower..
made no change on the BOXX


      i was gonna ask the systems guy about Kris' option.. that sounds
     interesting.. any other ideas .. please.. keep sending them












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