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Why do I need PhysX to run DA when I've got an ATI Radeon?


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13 réponses à ce sujet

#1
ElektroGuy

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So I have an Nvidia card but just recently switched to an ATI Radeon 5870.  Uninstalled all the Nvidia stuff and installed the new ATI graphics card.  When I went to start DA:O it said the game couldn't load because PhysXLoader.dll was missing.  So doing some searching on the forums, it seems that I need Nvidia PhysX installed to run the game.

Which doesn't make any sense to me because ATI doesn't use PhysX...right?

So now I need this PhysX program on my computer, something I'd rather not have installed actually, because of this little .dll file that DA:O needs.

Could I just uninstall/reinstall the game or am I stuck with this PhysX program?  Any help/insight is appreciated.

#2
whtnyte-raernst

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The game uses physx. You can get the lastest version from nvida web site.
I just replace physx, visual c++(2008 redistributable) with the latest versions, and updated to ATI's catalyst 9.11, been running the game nonstop for 3 hours w/o a crash or slow down!

Modifié par whtnyte-raernst, 11 décembre 2009 - 12:40 .


#3
Gorath Alpha

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Years before nVIDIA bought out the PhysX designer, and long before Aegia offered any hardware, the software was CPU-based, not GPU-based. nVIDIA hasn't stopped offering licensed use of the "general" PhysX to game developers. Obviously, BioWare bought the right to use it in DA: O. It's on the DVD, and the normal setup routines should have installed it already. If those failed to do so, you get an error message.

Gorath
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Modifié par Gorath Alpha, 22 juin 2010 - 11:32 .


#4
whtnyte-raernst

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Gorath:

He uninstalled everything that said nvidia when he put the ATI video card in. Probably best to go get the latest version off the nvidia site.

#5
Titius.Vibius

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What's odd is, look at your copies and you'll see an ATI badge. WTH!

#6
whtnyte-raernst

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Mine said Nvidia PhysX in the uninstall programs, and there's never been an Nvidia product within sniffing distance of my machine :))

#7
ladydesire

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Gorath Alpha wrote...

Before nVIDIA bought out the PhysX designer, the software was CPU-based, not GPU-based. nVIDIA hasn't stopped offering that version to game developers. Obviously, BioWare bought the right to use it in DA: O. It's on the DVD, and the normal setup routines should have installed it already. If those failed to do so, you get an error message.

Gorath
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Actually, it had it's own hardware available, though there was a software version of it that was used if you didn't have the add-in hardware card. nVidia still supports the Ageia Cards with their latest drivers, in addition to the GPU support that they added after they bought it.

#8
Gorath Alpha

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The add-on card arrived very late in the life of Aegia. The CPU-based software had been available for at least two years, probably much longer, before Aegia developed the dedicated hardware and matching hardware- based software. The nVIDIA buyout came along (at a guess) a year after the add-on card came out.


#9
Gorath Alpha

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There has been no change in the relationship of PhysX to CPUs for either DA or the ME games, nor with regard to non-nVIDIA graphics solutions.

Modifié par Gorath Alpha, 20 octobre 2010 - 06:57 .


#10
ahmet03

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a

#11
cutmeister

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Here is a great article on the history of PhysX and why PhysX doesn't run as efficiently as it could on a CPU.

www.realworldtech.com/page.cfm

#12
Gorath Alpha

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I am sure that some fanboy of either Intel's junk video chips or of AMD's Radeons has written a suitable article about the lack of much future for the hardware-based PhysX. 

Simply put, the market for add-on video cards, other than at the absolute very top performance very high-dollar range, is going to be limited by the addition of integrated high quality (leaving Intel out of that for the present) graphics into the main processor itself.  AFAIK, the Fusion CPUs for laptops (were already supposed to hve been in production when I was writing this two months ago), and the first laptops based on the new technology were supposed to be appearing within a couple of months thereafter. 

Intel's own Sandy Bridge is more of the same low quality graphics (better, yes, but still not good enough) that Intel is famous for, although they are promising an improved functionality in the future.  Sandy Bridge is also somewhat further out in the near future, maybe April, 2011,  than Fusion is. 

If Intel is never able to fulfill its promise, only then does nVIDIA have a long-term future as a graphics add-on company; however, betting against the 900 pound gorilla of PC hardware being able to eventually accomplish its aims is not usually a good bet.  If the add-on graphics market shifts to only the upper performance levels, PhysX support at the "normal performance / game-ready" hardware levels disappears. 

Gorath

Modifié par Gorath Alpha, 29 décembre 2010 - 02:48 .


#13
Gorath Alpha

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This particular thread is one of the 51 that the forum's own search found when restricted to Dragon Age's PC Tech Forum.

Initially, Google found 20,000 hits for the subject.

With the site redirector, that was reduced to 116. I think that's more than enough to qualify as "Frequently Asked"

About 116 results (0.45 seconds)

#14
Gorath Alpha

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In addition to the usual problems with PhysX caused by various other things, ME-3 is now a potential source of problems:

social.bioware.com/forum/1/topic/58/index/9818871

P. S.  The frequency of conflict is far from universal, nevertheless, it happens often enough that a proper quality control department should have known about it before the complaints began coming in. 

Modifié par Gorath Alpha, 20 mars 2012 - 02:52 .