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Thread: No, Ubisoft, the PS3 CAN handle the AI.

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    No, Ubisoft, the PS3 CAN handle the AI.

    One of Sony’s top bods, David Karraker, has chipped in his tuppence answering claims by an Ubisoft developer that the PS3 can’t handle multiple AIs.
    Read more.

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    mutantbass head Lee H's Avatar
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Hmm... who would I listen to here?

    Ubisoft developer who ACTUALLY programs/develops games for various platforms and have probably done so for a few years.

    Or...

    A Sony Employee who probably saw the sales figures are low and thought they need to limit damage control over this?

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    Comfortably Numb directhex's Avatar
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    complex AI is a massive number of branches - i.e. "if foo then bar" type code. the cell is dreadful at branched code. there's a fair difference between splinter cell's "intelligent" enemy agent type people, and heavenly sword's cookie-cutter cannon fodder

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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Cheers for the link - went to the beginning of the thread and interesting stuff......

    http://blog.us.playstation.com/2007/...3-stress-test/

    ""A lot of noise has been made recently about the reliability issues of one of our competitor’s systems. So, not surprisingly, some of our more ambitious PlayStation faithfuls decided to run their own stress test on the PlayStation 3. They put it in a freezer at zero degrees for up to 108 hours and they put it in a sauna at 120 degrees for up to 64 hours — all the while running games and Blu-ray Disc movies on it. Did it fail? Nope. Like the Energizer Bunny, it kept going and going and going. Probably not something you want to try at home, but our thanks to the guys at PS3 Vault for putting our system through the ringer"

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    TiG
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Whats this got to do with whether the AI can be coded effectively tho Barrichello?.

    TiG
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    mutantbass head Lee H's Avatar
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Quote Originally Posted by TiG View Post
    Whats this got to do with whether the AI can be coded effectively tho Barrichello?.

    TiG
    I think he's having a cryptic dig at the xbox 360 thermal problems

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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Quote Originally Posted by Lee @ SCAN View Post
    I think he's having a cryptic dig at the xbox 360 thermal problems
    Sounds like a diversionary tactic to me!
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Quote Originally Posted by Lee @ SCAN View Post
    I think he's having a cryptic dig at the xbox 360 thermal problems
    Quote Originally Posted by TiG View Post
    Whats this got to do with whether the AI can be coded effectively tho Barrichello?.

    TiG
    Nope. I'm only reading from the link that was provided - try it.

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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Is the hardware not capable, or is it more that the developer isn't capable?

    I suspect the latter.
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    what we need is the link to ubisofts blog where the comments were made in the first place!

    nice comment stoo!!!

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    Banhammer in peace PeterB kalniel's Avatar
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Oblivion's AI might seem a bit thick, but it's far more dynamic than most - path finding for eg. is particularly good compared to other RPGs.

    And it seems to run great on a PS3 :/

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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Quote Originally Posted by Stoo View Post
    Is the hardware not capable, or is it more that the developer isn't capable?

    I suspect the latter.
    a little from column a, a little from column b

    there are ways certain things have been programmed for decades. data structures and algorithms which have been honed for years, and so on. and the ps3's cell chip is phenomenal at certain types of code - which is why it has pounded everything else into dust for Folding@Home use. the 360 could never compete with the ps3, even with comparative install bases.

    but for the way AI has been written for the past decade or so, cell is a poor fit - too much branching and pipeline flushing for the chip to cope, and even the main non-SPU core doesn't do branch prediction properly

    to be fair, neural net stuff will be much better on the ps3 - but nobody's writing neural nets for game AI yet
    Last edited by directhex; 15-08-2007 at 10:53 AM.

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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Sounds also like: the dev tools aren't capable (column c?) - much could be done to make the job easier for the devs, and to optimize the (compiled) code for the target platform. Or does the PS3 require intricate knowledge of the architecture of the cell to code for? One hopes not..
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    Comfortably Numb directhex's Avatar
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    Quote Originally Posted by dangel View Post
    Sounds also like: the dev tools aren't capable (column c?) - much could be done to make the job easier for the devs, and to optimize the (compiled) code for the target platform. Or does the PS3 require intricate knowledge of the architecture of the cell to code for? One hopes not..
    fraid it does - there's only so far automatic optimization can take you, with an architecture like the ps3 where you need to put in your branch predictions by hand (x86-type chips do it implicitly, cell you need to say 'i reckon foo will happen but i'm not sure)

    it's an arch where you need intimate knowledge of the platform, much like the ps2 - which was one of the main reasons the ps2 had so much use fo 3rd party middleware rather than in-house engines, and why the same is happening with engines like UE3 on ps3

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    Lovely chap dangel's Avatar
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    That seems.. simply terrible from a dev's perspective: no wonder people bitch about PS3 development.
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    Re: No, Ubisoft, the PS3 CAN handle the AI.

    That's a myth. PS3 is far far better in that respect than the PS2 - according to Oblivion devs at least - coding for the PS3 isn't any worse than for other systems now.

    It's different, but not much more different than between the 360 and PC.

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