RE: particle simulation and video cards

["Luc-Eric Rousseau" <lucer(at)Softimage.COM>]

I asked you the frame per seconds, and not how many times faster, because your problem may be related to card synching to the monitor refresh rate.  Try turning off 'Vertical Sync' in "performance & quality settings".

 

When vertical sync is on, the frame rate you get will change in factors of the refresh rate.  For example an LCD panel is 60 Hz, so the frame rates you'll get are 60 fps, 30 fps, 15 fps, 7.5 fps.    In other words if something is slightly slower than 30 fps, it jumps down to 15 fps.  The computer is doing a whole lot of nothing waiting for vertical sync.

 

This is mostly a problem with empty or trivial scenes.

 

 

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From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Todd Alan Peleg
Posted At: Monday, April 30, 2007 6:07 PM
Posted To: xsi
Conversation: particle simulation and video cards
Subject: Re: particle simulation and video cards

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? 

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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