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Thread: 1080i mode in Gran Turismo 4

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    1080i mode in Gran Turismo 4

    Is there any backstory on how Polyphony managed to pull it of on the PS2? I never would have though it would be possible given that the current console rarley do beyond 720p.

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    One of three high level performance analyzers made for Ps2.

    Size of a fridge, cost rumored to be in the millions.

    It literally is the ps2 used to 99% of the capability.

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    A very small fridge then:

    That's a 2002 prototype, the final unit has the same size as the regular devkit:

    And I bet more than 3 were made, unless you're talking about something else, in wich case you have to tell us more about it.

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    There's another model of PA, it's a rack mounted design. You had to rent time on it by the hour.

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    Thinking of the prototype, it has a large chassis and an oscilliscope in it as well, polyphony had one, was in a rackmount.

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    :drool:

    Wow ! Sexy !
    It would be nice to see PA in action. Some video around the Net ?
    Last edited by Dr.Wily; 10-04-2011 at 06:12 AM.
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    This one:

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    Yeah I found this PDF too.

    A logic analyser to make game... Or launch missiles. Crazy dev ! ;-)
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    I would assume the same design (stopgap) but it's rack mounted.
    More like a data analyzer than oscilliscope.

    I saw a pic of it once from some studio tour. It's in the background.

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    Quote Originally Posted by Dr.Wily View Post
    :drool:

    Wow ! Sexy !
    It would be nice to see PA in action. Some video around the Net ?
    I don't think so...
    Mine is still in Japan :)
    Shipping is a killer :(

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    Quote Originally Posted by unclejun View Post
    Shipping is a killer :(
    How much ? I'm afraid...
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    I thought it wasn't proper 1080i rendering, nothing of the like ether. They just basically split the image in half, and added pixel doubling to the mix so it's up scaled 480 with some smoke and mirrors.

    I've played that version a lot and can tell you it's only marginally better than the standard def resolution in the fact that it allows you to see the approaching corners only very slightly better. It still looks absolutely terrible by today's standards and remains a very very pixelated experience.

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    EMS/chronopost: 23000 yens, add the usual VAT upon arrival at the french customs...
    Airmail/colissimo: 25000, no customs taxes, if I'm lucky...

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    The DTL-T15k is the same dev hardware as proto showed in the PDF or it has some diferences ?
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    It's the blue unit, the pic is in the 3rd post.

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    Quote Originally Posted by Xeauron View Post
    I thought it wasn't proper 1080i rendering, nothing of the like ether. They just basically split the image in half, and added pixel doubling to the mix so it's up scaled 480 with some smoke and mirrors.

    I've played that version a lot and can tell you it's only marginally better than the standard def resolution in the fact that it allows you to see the approaching corners only very slightly better. It still looks absolutely terrible by today's standards and remains a very very pixelated experience.
    Yep, it's some sort of 540p upscaled. Here's an explanation : http://community.us.playstation.com/...388872#6388872

    By the way, the game only works on this "1080" during races. Everytime you go to the menus, it goes back to 480p. To be honest, it's only a gimmick. I rather prefer to play it on 480p.

    PS: Tourist Trophy also has this "1080i mode"
    Last edited by Johnny; 10-04-2011 at 03:08 PM.

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    Quote Originally Posted by Johnny View Post
    Yep, it's some sort of 540p upscaled. Here's an explanation : http://community.us.playstation.com/...388872#6388872

    By the way, the game only works on this "1080" during races. Everytime you go to the menus, it goes back to 480p. To be honest, it's only a gimmick. I rather prefer to play it on 480p.

    PS: Tourist Trophy also has this "1080i mode"
    Yeah I read the link you attached before! That's the exact link as well, decent explanation.

    You can tell it's switching modes apart from the obvious because the loading animation (similar to your avatar) and text involved suddenly becomes pixelated to fuck just before a race. Not to mention the complete spack out the console goes through, by which I mean for a couple of seconds it looks like the PS2 is coughing up it's video memory all over the screen as it changes modes by way of multi coloured scrambled garbage when exiting a race and focused linear garbage lines just before a race if I remember correctly.

    I've only viewed this on an LCD TV but there's a very ovbious 'linear' property to the screen render as well, like it could be very very very mild scanlines.
    Last edited by Xeauron; 10-04-2011 at 08:54 PM.

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    Quote Originally Posted by Xeauron View Post
    I thought it wasn't proper 1080i rendering, nothing of the like ether. They just basically split the image in half, and added pixel doubling to the mix so it's up scaled 480 with some smoke and mirrors.

    I've played that version a lot and can tell you it's only marginally better than the standard def resolution in the fact that it allows you to see the approaching corners only very slightly better. It still looks absolutely terrible by today's standards and remains a very very pixelated experience.
    I've played it as well on the very screen I'm looking at. The 480p mode upscaled using my Dell 2405FPW's internal hardware looked better by a HUGE margin. 1080i was garbage, utter garbage.

    I'd have to take a picture as the English language doesn't have adjectives strong enough to explain how I feel.
    http://www.assemblergames.com/forums...ad.php?t=31524
    My feedback thread, since it seems somewhat difficult for people to find.

  19. #19
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    given that the ps2 could output 1280x1024 atleast according to the hardware details here https://secure.wikimedia.org/wikiped.../PlayStation_2

    im interested if the PS2 was truly pushed could it output 720p at playable frame rates given that everyone agrees GT4 1080i is nothing but lies

    ive seen the CGR review on Gran Turismo 4 and at 1080i it looks better
    but you can still see the pixilated mess
    Last edited by angelwolf71885; 10-05-2011 at 01:39 AM.

  20. #20
    Looks crap compared to 480p anyway.

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