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[DX11] Emissive Aliasing Issue

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    [DX11] Emissive Aliasing Issue

    So there's an issue with DirectX 11's anti-aliasing features and bloom. I've tried everything -- MLAA / FXAA / MSAA. These work on the edges of geometry, but they suddenly become REALLY jagged with emissive glow. Is this a bug with the engine, or is this an uberpostprocess setting I'm not using correctly? And if it's a setting, what do I need to change to make the aliasing go away?

    Pictures:
    [shot]http://img52.imageshack.us/img52/2329/emissivealiasing.jpg[/shot] [shot]http://img207.imageshack.us/img207/3298/emissivealiasing2.jpg[/shot] [shot]http://img831.imageshack.us/img831/6342/emissivealiasing3.jpg[/shot]
    [shot]http://img221.imageshack.us/img221/81/emissivealiasing4.jpg[/shot] [shot]http://img17.imageshack.us/img17/6619/emissivealiasing5.jpg[/shot]

    The last two are the uberpostprocess settings and the material used, respectively.

    If it was my guess, I'd say it was the Depth of Field and the Bloom not getting along, but then again it may be something else.

    #2
    Post AA should really be smoothing it out. Maybe they are using post aa before tonemapping? The big problem with HDR and AA is that tone mapping reintroduces aliasing in high contrast areas.

    MSAA does nothing for shader aliasing in any case, not sure about MLAA but FXAA should handle it.

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      #3
      Originally posted by BmB23 View Post
      Post AA should really be smoothing it out. Maybe they are using post aa before tonemapping? The big problem with HDR and AA is that tone mapping reintroduces aliasing in high contrast areas.

      MSAA does nothing for shader aliasing in any case, not sure about MLAA but FXAA should handle it.
      Tried 'em both. No dice.

      EDIT: So if tonemapping is applied, would a viable solution be to move the bloom and dof settings to a second uberpostprocess? Or am I going to just run into more problems that way?

      Comment


        #4
        Nope, evidently not. I just tried it. With a second Uber applied, it turns almost everything black.

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