Double Resolution with 3D?

Discussion in '3DS - Console, Accessories and Hardware' started by Presto99, Apr 4, 2011.

  1. Presto99
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    Presto99 You slammin, bro?

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    I've heard that the top screen of the 3DS gets its resolution doubled when in 3D mode, and that makes sense, seeing as it is displaying two screens at once on the top, three total. Although when playing in 3D mode I don't notice any less jaggies or an increase in resolution, but the screen just gets 3D. That makes sense, right? But what if a game developer could make a game, when 3D mode is on, wouldn't make it 3D, but would make it look nicer and just increase the number of pixels you were seeing? I hope this makes sense, and I don't really have any idea if this is possible, but I just thought it would be cool.
     
  2. twiztidsinz

    twiztidsinz Taiju Yamada Fan

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    You can't make pixels.

    The resolution is set at 800×240 pixels for the top screen (400x240 per eye) and 320×240 pixels for the bottom screen.
    The DS/DSi games can be displayed at 256x192 (native) or scaled up to 320x240 (1.25x).



    If you mean 'make a game run 800x240' then I suppose it would be possible... but Nintendo probably wouldn't let a non-3D game be developed for their 3D console.
     
  3. DryYoshi

    DryYoshi Love child of Dry Bones and Yoshi

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    Actually, Nintendo said that developers don't need to use 3D.
    Cubic Ninja doesn't use it, it has too much motion-control.
     
  4. Presto99
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    Presto99 You slammin, bro?

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    That's what I mean. And in Iwata Asks they did say that they would let devs choose how much (if at all?) 3D was in their game, like Nintendo didn't force everyone to make their DS games touch-supported.
     
  5. geruetzel

    geruetzel Member

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    on their website they say, that games for the 3DS are not necessarily in 3D
     
  6. TehSkull

    TehSkull Living the life

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    Isn't any game you play (while the 3D switch is off) in 800x240? That was my understanding...

    Then when the 3D switch is turned on, every other vertical column of pixels is pointed at each eye. Right?
     
  7. Snailface

    Snailface My frothing demand for 3ds homebrew is increasing

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    No, the two vertical rectangles that make up a pixel are merged into one square pixel in 2d mode. In 3d mode, each vertical rectangle would be sent one to each eye and merged into one pixel in your brain.

    It might be possible to use 800X240 res in 2d mode but it would look odd because the vertical resolution would stay the same at 240. The aliasing (jaggies) would be inconsistent depending on the angle of a given polygon edge.
     
  8. pachura

    pachura GBAtemp Advanced Fan

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    Back then Amigas had "High Res" mode - 640x256 on a 4:3 screen. It looked OK.
     
  9. TheNikkoMan

    TheNikkoMan Advanced Member

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    I actually think that 3D DOES look more jagged/pixels more noticeable. Nothin big tho.
     
  10. spinal_cord

    spinal_cord Knows his stuff

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    The way I understand it, 3D = 2x 400x240 screens, 2D = 1x 800x240 screen.

    It should be possible to get double the horizontal resolution in 2D mode. It wouldn't look in any way odd, as the image would be designed to use 800x240, rather then 400x240, so it should be better quality than a 3D version of the same scene.
     
  11. altorn

    altorn GBAtemp Advanced Fan

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    No. The 3d mode will cause more aliasing, therefore you cannot create more detail than it already can display. Its a hardware limitation.

    Its like your understanding with quad core cpus that when they say 2.2GHz Quad core, you do 2.2x4=8.8...
    No. Its just 400pixels wide. You know when you activate 3d, the screen flickers a bit, thats when the pixels "divide". They only say 800pixels because of people having 2 eyes. If you can merge your eyes then sure you get 800pixels on 1 eye. Lol
     
  12. pachura

    pachura GBAtemp Advanced Fan

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    You don't know what you're talking about.

    3DS' screen has 800x240 pixels. The pixels are rectangular, height = 2 x width. Theoretically it could be possible to use this double horizontal resolution in 2D mode... if hardware allows it. I guess currently it is easier for developers just to display identical image in even and odd columns when 3D is off.
     
  13. DiscostewSM

    DiscostewSM GBAtemp Guru

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    When using 3D mode, 2 things happen. First, the parallax barrier is activated. Second, the use of a 2nd camera is activated for an additional render, and that render is mapped over the 2nd group of columns that alternate with the 1st. If developers have access to both the parallax barrier and 2nd camera independently, then I can see them possibly having an 800x240 2D screen to work with. From that, you have the 2nd camera laid with the same exact position and orientation as the 1st, but with a slight adjustment to the yaw axis, as far as 3D 'graphics' are concerned.
     
  14. spinal_cord

    spinal_cord Knows his stuff

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    Never have I read a more useful passage of text. [​IMG]
     
  15. altorn

    altorn GBAtemp Advanced Fan

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    yeah i guess i have it the other way around.
    but you said it yourself, 2xwidth. so technically, it's 400pixels but each pixel is twice as wide as its height. like 400 rectangular "bulbs".
     
  16. JoyConG

    JoyConG GBAtemp Advanced Fan

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    Not true, Cubic Ninja has no 3D at all. It opt'd out of it because the gyroscope makes it difficult to maintain the effect. 3D is not a requirement in software