1080i mode in Gran Turismo 4

Discussion in 'Sony Programming and Development' started by Auction_Sniper, Oct 3, 2011.

  1. Auction_Sniper

    Auction_Sniper Rapidly Rising Member

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    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.
     
  2. ASSEMbler

    ASSEMbler Administrator Staff Member

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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.
     
  3. unclejun

    unclejun Site Supporter 2011-2014

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    A very small fridge then:
    [​IMG]
    That's a 2002 prototype, the final unit has the same size as the regular devkit:
    [​IMG]
    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.
     
  4. ASSEMbler

    ASSEMbler Administrator Staff Member

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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.
     
  5. ASSEMbler

    ASSEMbler Administrator Staff Member

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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.
     
  6. Dr.Wily

    Dr.Wily Peppy Member

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    :drool:

    Wow ! Sexy !
    It would be nice to see PA in action. Some video around the Net ?
     
    Last edited: Oct 4, 2011
  7. unclejun

    unclejun Site Supporter 2011-2014

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  8. Dr.Wily

    Dr.Wily Peppy Member

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    Yeah I found this PDF too.

    A logic analyser to make game... Or launch missiles. Crazy dev ! ;-)
     
  9. ASSEMbler

    ASSEMbler Administrator Staff Member

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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.
     
  10. unclejun

    unclejun Site Supporter 2011-2014

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    I don't think so...
    Mine is still in Japan :)
    Shipping is a killer :(
     
  11. Dr.Wily

    Dr.Wily Peppy Member

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    How much ? I'm afraid...
     
  12. Xeauron

    Xeauron Intrepid Member

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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.
     
  13. unclejun

    unclejun Site Supporter 2011-2014

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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...
     
  14. Dr.Wily

    Dr.Wily Peppy Member

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    The DTL-T15k is the same dev hardware as proto showed in the PDF or it has some diferences ?
     
  15. unclejun

    unclejun Site Supporter 2011-2014

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    It's the blue unit, the pic is in the 3rd post.
     
  16. Johnny

    Johnny Gran Turismo Freak and Site Supporter 2013,2015

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    Yep, it's some sort of 540p upscaled. Here's an explanation : http://community.us.playstation.com/message/6388872#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: Oct 4, 2011
  17. Xeauron

    Xeauron Intrepid Member

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    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: Oct 4, 2011
  18. APE

    APE Site Supporter 2015

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    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.
     
  19. angelwolf71885

    angelwolf71885 Dauntless Member

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    given that the ps2 could output 1280x1024 atleast according to the hardware details here https://secure.wikimedia.org/wikipedia/en/wiki/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: Oct 4, 2011
  20. Segata Sanshiro

    Segata Sanshiro speedlolita

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    Looks crap compared to 480p anyway.
     
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