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Question about AI scaling

 
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NightSky 421

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Since: Jan 09, 2005
Posts: 182



(Msg. 1) Posted: Sat Apr 15, 2006 3:48 am
Post subject: Question about AI scaling
Archived from groups: comp>sys>ibm>pc>games>action, others (more info?)

I was talking to a good friend of mine earlier this week, and he said to me
that if your CPU is less than the recommended spec for a game, the
artificial intelligence of the game automatically "scales back" and that you
won't experience the game as intended by the developers. Although he was
talking about games in general, he specifically mentioned that this sort of
thing goes on in games like Oblivion. Is there any truth to this, and if
so, how prevalent is scaling back of the AI in the various PC games out
there?

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mcv

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Since: Aug 03, 2005
Posts: 491



(Msg. 2) Posted: Sat Apr 15, 2006 9:55 am
Post subject: Re: Question about AI scaling [Login to view extended thread Info.]
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In comp.sys.ibm.pc.games.strategic NightSky 421 <nightsky421 DeleteThis @yahoo.ca> wrote:
> I was talking to a good friend of mine earlier this week, and he said to me
> that if your CPU is less than the recommended spec for a game, the
> artificial intelligence of the game automatically "scales back" and that you
> won't experience the game as intended by the developers. Although he was
> talking about games in general, he specifically mentioned that this sort of
> thing goes on in games like Oblivion. Is there any truth to this, and if
> so, how prevalent is scaling back of the AI in the various PC games out
> there?

It's certainly possible for AI-intensive games, but it's by no means
universal. Probably not even common. The vast majority of game AI
isn't even smart enough to make use of that much time.


mcv.

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Schrodinger

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Since: Jan 02, 2005
Posts: 401



(Msg. 3) Posted: Sat Apr 15, 2006 11:55 am
Post subject: Re: Question about AI scaling [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"NightSky 421" <nightsky421.RemoveThis@yahoo.ca> wrote in message
news:1241gagj6su4f07@corp.supernews.com...
>I was talking to a good friend of mine earlier this week, and he said to me
>that if your CPU is less than the recommended spec for a game, the
>artificial intelligence of the game automatically "scales back" and that
>you won't experience the game as intended by the developers. Although he
>was talking about games in general, he specifically mentioned that this
>sort of thing goes on in games like Oblivion. Is there any truth to this,
>and if so, how prevalent is scaling back of the AI in the various PC games
>out there?
>
>

I don't think this is the case - you would just find that the game became
less responsive as more CPU time was taken by the AI. I don't see why the
devs would bother testing CPU load to then dynamically scale AI - which is
hardly CPU intensive anyway.

Most "AI" is scripted in any case and you would get far better results, more
easily, by dynamically scaling CPU intensive graphics.
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Jeremy Reaban

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Since: Nov 16, 2004
Posts: 875



(Msg. 4) Posted: Sat Apr 15, 2006 5:24 pm
Post subject: Re: Question about AI scaling [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"NightSky 421" <nightsky421 DeleteThis @yahoo.ca> wrote in message
news:1241gagj6su4f07@corp.supernews.com...
> I was talking to a good friend of mine earlier this week, and he said to
me
> that if your CPU is less than the recommended spec for a game, the
> artificial intelligence of the game automatically "scales back" and that
you
> won't experience the game as intended by the developers.
<snip>

Did your friend give any examples? Sounds more like he was talking about his
own brain...
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Harald Lauer

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Since: Jun 16, 2004
Posts: 5



(Msg. 5) Posted: Sat Apr 15, 2006 6:55 pm
Post subject: Re: Question about AI scaling [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

Schrodinger wrote:
> "NightSky 421" <nightsky421.DeleteThis@yahoo.ca> wrote in message
> news:1241gagj6su4f07@corp.supernews.com...
>
>>I was talking to a good friend of mine earlier this week, and he said to me
>>that if your CPU is less than the recommended spec for a game, the
>>artificial intelligence of the game automatically "scales back" and that
>>you won't experience the game as intended by the developers. Although he
>>was talking about games in general, he specifically mentioned that this
>>sort of thing goes on in games like Oblivion. Is there any truth to this,
>>and if so, how prevalent is scaling back of the AI in the various PC games
>>out there?
>>
>>
>
>
> I don't think this is the case - you would just find that the game became
> less responsive as more CPU time was taken by the AI. I don't see why the
> devs would bother testing CPU load to then dynamically scale AI - which is
> hardly CPU intensive anyway.
>
> Most "AI" is scripted in any case and you would get far better results, more
> easily, by dynamically scaling CPU intensive graphics.

In general? Maybe I'm nitpicking, but there are strategy games out
there, which are all about AI and are very CPU intensive: chess. Ok, the
chess program able to beat average and below players on a regular basis
run just fine on todays computers.

Coming back to those games the OP was probably refering to, the AI is
indeed in most cases not the part of the game eating the most CPU cycles
- unfortunately IMHO. This subject has probably been discussed to death
already ...

Harald
--
_______________________________________________________________________
"Never ascribe to malice, that which can be explained by incompetence."
- Napoleon Bonaparte
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John Lewis

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Since: Jan 20, 2005
Posts: 1117



(Msg. 6) Posted: Sun Apr 16, 2006 1:55 am
Post subject: Re: Question about AI scaling [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

On Sat, 15 Apr 2006 03:48:09 -0600, "NightSky 421"
<nightsky421.RemoveThis@yahoo.ca> wrote:

>I was talking to a good friend of mine earlier this week, and he said to me
>that if your CPU is less than the recommended spec for a game, the
>artificial intelligence of the game automatically "scales back" and that you
>won't experience the game as intended by the developers. Although he was
>talking about games in general, he specifically mentioned that this sort of
>thing goes on in games like Oblivion. Is there any truth to this, and if
>so, how prevalent is scaling back of the AI in the various PC games out
>there?
>
>


Any game that has difficulty-adjustment and non-scripted-AI, like Far
Cry and Oblivion could readily simplify the AI computations to save
CPU cycles for other operations..Or deliberately make more or less
use of (an) extra CPU-core(s).

Both AI and physics trade-offs against compute-intensive graphics
operations are certainly possible. I do not think that either Far Cry
or Oblivion make this type of trade-off with their difficulty
settings.

John Lewis
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NightSky 421

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Since: Jan 09, 2005
Posts: 182



(Msg. 7) Posted: Sun Apr 16, 2006 5:45 pm
Post subject: Re: Question about AI scaling [Login to view extended thread Info.]
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Thanks, I appreciate all of the feedback. Happy Easter!
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