Why no antialiasing ?

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

Jun 4, 2011

Why no antialiasing ? by pachura at 8:42 PM (3,699 Views / 0 Likes) 21 replies

  1. pachura
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    Member pachura GBAtemp Advanced Fan

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    3DS' screen is quite low resolution and it could really use some antialiasing. And despite AA is listed as one of Pica200's features, it seems that no game is using it at the moment.

    2xFSAA (Full Screen Antialiasing) basically forces hardware to render 4 times as many pixels as normally. I understand it would drastically decrease framerate of most games. But what about Nintendo's Home Menu ? Game menus ? Character selection screens ? They are really simple, so why no one uses antialiasing there ? For instance, car model and track selection in Ridge Racer looks really ugly due to the "jaggies"...
     


  2. Porobu

    Member Porobu Gbatemps Shiny Latias

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    Some games use it when 3D is off and FSAA is Full Scene (not screen) Anti-Aliasing
     
  3. Ikki

    Member Ikki GBATemp's grumpy panda.

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    I believe it's because the 3D supposedly has it's own antialiasing-ish effect.
     
  4. pachura
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    Member pachura GBAtemp Advanced Fan

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    This was what everyone was hoping for, but in reality the jaggies look even worse in 3D (at least for me).
     
  5. heartgold

    Member heartgold GBAtemp Psycho!

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    Seems good to me in 3D sorta
     
  6. Pippin666

    Member Pippin666 SSF43DE Master

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    There is a part in SSF4 with AA + 3D. Right before a fight during the character introdution. Some cutscene in DoA also have AA + 3D.

    Pip'
     
  7. Ergo

    Member Ergo GBAtemp Advanced Fan

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    Probably because implementing it isn't 'free', resource wise.
     
  8. RupeeClock

    Member RupeeClock Colors 3D Snivy!

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    To display three screens at once, two of them being the 3D display, requires greater computing power than Anti-aliasing would probably allow.
    Some games already suffer a little frame loss during 3D mode.
     
  9. Ikki

    Member Ikki GBATemp's grumpy panda.

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    And it would be one anti-aliasing per screen, right?

    That'd be kinda too much.
     
  10. pachura
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    Member pachura GBAtemp Advanced Fan

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    It depends on what's on these screens. If there's just a single textured cube rotating, then it doesn't require that much power and AA could be used. But it's not.
     
  11. Wizerzak

    Member Wizerzak Because I'm a potato!

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    I can't understand why you'd want it anyway. Most Nintendo games go for a low-graphic look so adding AA won't make much of a difference...
     
  12. doyama

    Member doyama GBAtemp Maniac

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    Considering you're now only getting around 4 hours of gaming right now on a 3DS, would you want to have a non-toggleable AA feature that would suck so much battery life that you'd probably be in the 2.5 hour range?
     
  13. m3rox

    Member m3rox GBAtemp Advanced Maniac

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    Less than that, AA can really eat up a system's resources. Realtime AA.... I don't even think this is possible yet as it would fall under what the pros in the CG industry call "realtime rendering" (different than what you're thinking of), which consists of AA, lighting, rendering, the whole shebang being done in real time. The closest the movie industry has is progressive rendering (where a single frame starts off as a mosaic and is progressively refined over a certain period of time). So the best you're going to get is what you see currently on the 3DS/Wii/PS3/360.
     
  14. Issac

    Member Issac Mini-mod

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    When 3D is on, you have your eyes focused at one particular "distance" in the scene, and the parts that are around the model for example will be at a different distance.. this makes up for the anti aliasing since it will be blurry for your eyes, and give a anti-aliased effect [​IMG]
     
  15. RupeeClock

    Member RupeeClock Colors 3D Snivy!

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    That's actually what Picross 3D on the DS is, and that seems to have legiitmate AA.

    The bottom screen may not be utilising 3D or anything that needs AA, but that still leaves two wide screens.

    I do say though 2D mode makes AA sound more feasible.
     
  16. m3rox

    Member m3rox GBAtemp Advanced Maniac

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    No, no game has real AA.
     
  17. Ultralex

    Member Ultralex GBAtemp Fan

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    If you turn off 3D in SSF IV it's Anti-Aliased.
     
  18. m3rox

    Member m3rox GBAtemp Advanced Maniac

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    No it isn't.
     
  19. pachura
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    Member pachura GBAtemp Advanced Fan

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    Myself, I don't see any difference as to the "jaggies" with 3D turned on.
     
  20. tigris

    Member tigris Sentient Existential Anthropomorphic Sweet Potato

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    3D antialiases in its own right. Your binocular disparity creates a light blur. This is the eye's "natural" anti-aliasing [​IMG]
     

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