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Article #757

HELP: Voodoo2 choppy, stutter while panning in F1RS

#757
From: ereynold
Date: Tue, 13 Oct 1998 00:00
43 lines
2531 bytes
My Diamond Monster3d-II 12MB seems to stutter while panning a field of view. 
I mainly run racing simulations (F1RS, etc).  Most of the time, the frame
rate is smooth as silk.  But when going thru a hairpin or other high "rate of
turn", the image seems to stutter.  I never noticed this with my Voodoo1 on a
P166, but then again the overall frame rate was less.  It is VERY noticeable
with the Voodoo2 on my new P400.  It is really annoying... and like I said, I
never saw this with a Voodoo1 !!!!

I've read other posts of a similar nature from people who play Quake (I
don't).  Quake users are reporting stutter while "turning" in the game.  I've
seen the stuttering in other games, like Castrol SuperBike, CPR and others. 
For me, I test this condition in F1RS at the Spa circuit by running a tight
360 circle at the LaSource hairpin, where the stuttering is quite noticeable.
 Any other F1RS players get this ?

Is this a "bandwidth" problem betwwen the Voodoo2 and main memory (i.e. PCI
bus).  It seems like the video is smooth as long as the scenery does not
change drastically.  The stuttering occurs when the scnery needs to rapidly
change, as in panning.

Here are my system specs:

Pentium II 400 w/ 128M SDRAM (100Mhz FSB) - ASUS P2B
Maxtor 11.5GB IDE
Western Digital 4.0GB IDE
Matrox G200 AGP
Diamond Monster 3D-II 12MB @ 90MHz  (3DFXCOOL fan installed)
Creative AWE64 Value
Diamond MonsterSound M80

Windows 95 "c"
DirectX 5.2
Latest Diamond Drivers  (2.03)


Any fixes... workarounds...  things to look for ???


Thanks,
Ed

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From: ereynold@c2o.com
Subject: HELP: Voodoo2 choppy, stutter while panning in F1RS
Date: 1998/10/13
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