SOLVED Moire effects

Discussion in 'General Discussion' started by nst0022, Oct 16, 2023.

  1. nst0022

    nst0022 Registered

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    I am encountering the following Moire effects on Lime Rock Park 3.05:

    1.png

    I have already tried different graphics settings from Very Low to Ultra to no avail, also two technically different computers of mine show the same results

    Lime Rock Park Youtube videos I watched were fine, no Moire at all

    Can anyone shed some light on this mess?
     

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  2. PlanRZ

    PlanRZ Guest

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    Your resolution looks really low, you need some kind of anti aliasing to minimize that effect i think ... or use a higher resolution.
     
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  3. nst0022

    nst0022 Registered

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    No, it is not VR and anti aliasing I have tried up and down
     
  4. Bernat

    Bernat Registered

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    At that resolution I don't think it can look much better.
     
  5. nst0022

    nst0022 Registered

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    As I said, I tested all graphics "resolutions" from Very Low to Ultra, where Ultra has every single setting maxed-out

    None of these had discernible impact on the Moire effects
     
  6. Comante

    Comante Registered

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    To some extent this effect with guardrails is unavoidable, low resolution , low or no aliasing , make it worse. Maybe even anisotropic filtering can get involved.
     
  7. PlanRZ

    PlanRZ Guest

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    It looks like you talk about quality and not pure resolution. By resolution we mean the number of pixels your screen displays ...

    On a 2k or 4k you should have at least a grid of 1440 pixels in height or more. Your screenshot shows probably only 400 pixels in height.

    You're on an Ultrawide, or Multi screen ? Are you in 7600 x 2600 or else ?
     
  8. nst0022

    nst0022 Registered

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    @DanRZ : Sorry for the confusion. My screen resolution is 1920 x 1080, the screenshot only a relevant part of it

    My reply #5 was related to #4, which appeared to refer to the graphics settings

    Also, I picked Lime Rock Park, because the effects are most obvious there. On Nordschleife, with similar guardrails, it is less pronounced

    Anyway, I had a similar problem with American Truck Simulator. There, I could adjust a parameter called "scaling" (whatever that means) in a configuration file, which significantly, if not completely reduced the Moire effects

    I was hoping that something similar is possible in rFactor 2 as well
     
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  9. PlanRZ

    PlanRZ Guest

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    Thanks, i was confused with that screenshot.
    If it's on long distances, try to modify the FXAA parameter, it changes the way distant pixel are anti-aliased ... Go 8X, 16X, modern cards can handle that.
     
  10. Bernat

    Bernat Registered

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    I never mentioned graphics settings, just "resolution". Anyway, it's fine.

    In the graphics settings, change the "Texture filter" setting to any of the Anisotropic options. The higher the better but also slower.

    This is in addition to setting FSAA to something other than off. FXAA is optional.

    But for texture filtering issues over large distances, "Texture filter" anisotropic is the solution.

    Almost all graphics profiles set anisotropic texture filtering. Is your GPU driver disabling anisotropic filtering?
     
  11. nst0022

    nst0022 Registered

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    Thanks to both of you, FSAA did it

    For people, who run into the same problem:

    FSAA can be set to None, MSAA 2x, MSAA 4x, MSAA 8x
    where for None to MSAA 4x, the Moire effects go from worst to least, and for MSAA 8x they are gone

    In conjunction with Texture Filter x4 anisotropic, I have now a Moire-free, fluid picture:

    1.png
     

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    PlanRZ and atomed like this.
  12. PlanRZ

    PlanRZ Guest

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    A lot better ... The anistropic filtering was the solution.
     
  13. Bernat

    Bernat Registered

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    It's easier to diagnose issues with full screenshots. We can zoom in anyway. I use MSAA x4 and never noticed this issue but maybe it's dependent on other settings. Good that it's fixed, it looks much better.
     

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