Downsampling w/o AA vs. 1080p Anti Aliasing

Discussion in 'Computer Games and General Discussion' started by Ron, Aug 14, 2013.

  1. Ron

    Ron somehow a weeb now.

    Dec 10, 2009
    I'm looking into setting up downsampling on my HD 7770.

    Is downsampling at 1440p without AA, generally more of a performance hit than standard Antialiasing or does it perform better? Does it look better as well?
  2. Rydian

    Rydian Resident Furvertâ„¢

    Feb 4, 2010
    United States
    Cave Entrance, Watching Cyan Write Letters
    Older forms of AA (SSAA and MSAA) involved rendering at a higher resolution and downsampling, but modern AA forms (notably FxAA) don't need to do that... so it sorta' depends, since the downsampling and rendering was done in multiples of the display size, not just slightly larger, but it should be better than traditional AA (though you're sort of replicating it depending on how it's done).

    Are you just trying to get fast/cheap AA on an old game?
  3. Kirito-kun

    Kirito-kun Disciple of GabeN

    Jul 23, 2013
    22nd Floor

    I don't recommend FXAA unless MSAA causes the game to lag. FXAA is not a true anti-aliasing algorithm and instead filters each frame as a 2D image. This causes FXAA to make all the game's textures look blurry and reduce the general fidelity of the visuals. I personally prefer no AA to FXAA. You get a few more frames per second and the textures continue to look sharp.
  4. Celice

    Celice GBAtemp Advanced Maniac

    Jan 1, 2008
    United States
    What exactly is the hit with FXAA? In Borderlands 2, I can't really tell a difference myself, granted it may not be the best game to look for sharpness with. But I've also forced FXAA on Stalker: Shadow of Chernobyl and didn't notice a quality loss, either.

    Although, I was always under the impression that SMAA was a better choice, when available?
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