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Article View: comp.sys.ibm.pc.hardware.video
Article #1047

Re: Help! Pathetic 2D performance with CL Riva TNT AGP

#1047
From: Christoph Nahr
Date: Sat, 24 Oct 1998 00:00
46 lines
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On Sat, 24 Oct 1998 15:01:12 GMT, bfbaker@my-dejanews.com wrote:

>I've just replaced my Millennium II PCI / Voodoo I combo with the Creative
>Labs Riva TNT AGP card, and I don't feel like I've traded up.  While it's
>nice to see my favorite games in higher resolutions, most of them show some
>bizzare behavior.  In Forsaken, some of the graphics are misplaced (tanks
>appearing as covered turrets, covered turrets appearing as subway cars, etc).
>In G-Police, the game plays well, but the letters in the menus are
>surrounded by a chunky black border.

Misplaced graphics etc. are a symptom that either your graphics card
driver or your games are not quite Direct3D compatible.  How did
Forsaken and G-Police run on your Voodoo card, did they use Direct3D
or Glide / 3dfx native?

>The real show-stopper is the pathetic 2D performance.  Subspace is unplayable.
>If there's any action on the sceen, framerates drop to 2-4 fps.  In the
>Windows Explorer (tm), I can see the directories slowly appear and disappear
>when I expand and collapse the treeview (on the other hand, dragging windows
>around is as fast as ever).

If only *some* video operations are slow then it's definitely a driver
issue.  The slowness of directory display might be due to the fact
that the letters are rendered in software rather than (partially) in
hardware, as should be the case with a Windows accelerator card.  Did
you try to start a word processor?  How fast is scrolling in Wordpad?

You say that Subspace is too slow;  I suppose this game is using
DirectX for video access.  Did you install the latest DirectX drivers?
(DirectX 6.0, from the MS web site)

>Software:
>Windows 95 4.00.950 B
>Latest CL TNT drivers (no tweeks)

You're sure that Win95b actually supports AGP?  Just a question, I
don't know either... but *maybe* the card is running in some sort of
compatibility mode which is slowing down video output.

You're sure too that the latest CL TNT drivers are supposed to work
well with Win95b?  They are probably designed for Win98, and there
were some changes to the Windows driver architecture from Win95b.
Does their readme file say anything about Win95(b) compatibility?
-- 
Chris Nahr (cnahr@ibmnet, insert dot after ibm to reply by e-mail)
Please don't e-mail me if you post!  PGP key at wwwkeys.ch.pgp.net
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From: cnahr@see.my.sig (Christoph Nahr)
Subject: Re: Help! Pathetic 2D performance with CL Riva TNT AGP
Date: 1998/10/24
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