Alternative AA methods and their comparison with traditional MSAA*

Discussion in 'Rendering Technology and APIs' started by mitran, Nov 15, 2009.

  1. patsu

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    What console games do that right now ?
     
  2. corduroygt

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    Games that lack one or more of the following compared to other games in their genre:
    - Polygon detail (too few polygons)
    - Pixel shader detail (not as many fancy effects)
    - Framerate
     
  3. Weaste

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    Would it be too much to ask why?
     
  4. 2real4tv

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    I would like to know also? Is their some negatives about using MLAA vs 4xMSAA
     
  5. Neb

    Neb Iron "BEAST" Man
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    Becouse it affects all polygons no mather size, can be applied to transparencies and generally the lighting strenght/method or any other effect wont cancel it out or mess with it. End result is one uniform smooth image with no edges/surfaces lacking AA. In games with long draw distances and fine grain distant detail that isn't made out of bitmaps or such it would create even bigger difference.
     
  6. ShadowRunner

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    It doesnt work at the sub-pixel level. There may be ways around this though.
     
  7. PhilB

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    Not sure what the GoW3 devs did differently but they said their technique was slightly different to MLAA (like they further refined the technique). Maybe they did something about the sub pixel problem? Anybody with the game confirm if it's still a problem?
     
  8. Laa-Yosh

    Laa-Yosh I can has custom title?
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    All the post filters work after the scene detail has been lost through the rendering process. As others indicated, it is particularly important on highly aliasing elements like small or distant stuff.

    These new approaches do their best to reconstruct that information, but can't get as good even with practically unlimited resources...

    However, it seems reasonable to me to combine the two approaches, which might be what GOW3 does.
     
  9. patsu

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    Aiight, I will wait for the release build of GoW3 to see the final images. Given the resource constraints, their MLAA implementation may be the best choice for similar games.

    For GT5, their AA doesn't seem sufficient even in replay (2x or 4xAA ?). I don't need the distant AA. If there is some way to filter the cars only, I'd be happy. I don't pay attention to background objects, especially far away ones.
     
  10. ShadowRunner

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    If there is processing power available on spus is it not feasable to apply MLAA over the top of MSAA?
     
  11. marcus_rocks

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    I don't think GoW3 does both MLAA and 2xAA.
    What I understand from Christer is that they went beyond the proposed MLAA described in the original paper and solved the sub-pixel problem.
     
  12. patsu

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    Where did he talk about the sub-pixel problem/solution ?
     
  13. marcus_rocks

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    He did not say he solved the sub-pixel problem but he said he went beyond the conventional MLAA. So I guess he has solved it.
     
  14. patsu

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    I saw that, Mr. Graham ! :twisted:
     
  15. AlBran

    AlBran Ferro-Fibrous
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    It could have been worse, patsu. It could have been worse. :p (/alstrong awards no points today, and may Kratos have mercy on souls...)
     
  16. Graham

    Graham Hello :-)
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    ...

    Well, no, all you are saying is they used a modified version of MLAA. We don't know anything more.
    This sort of speculation, and statement of fact based on speculation is where misinformation starts.

    Unless / until we have clear comment from the developers themselves specifically stating they have solved 'the sub pixel problem' then all we can say is they use a modified MLAA implementation.

    You saw nothing.






    :mrgreen:
     
  17. Neb

    Neb Iron "BEAST" Man
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    That is shader aliasing. Dunno how much can be done via sahders to fix or the brutal method of SSAA to fix it.
     
  18. patsu

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    :lol: I didn't want to be the messenger with the bad news. So I have to out you. \^o^/

    Let's see it !
     
  19. Neb

    Neb Iron "BEAST" Man
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    Look at the promo super sampled GT5 shots.
     
  20. patsu

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    I meant an MLAA prototype of GT5. ^_^
     
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