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Negative LOD bias

Discussion in 'Videocards - NVIDIA GeForce Drivers Section' started by Groovex, Nov 8, 2014.

  1. Groovex

    Groovex New Member

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    Can somebody explain to me working Negative Lod Bias with graphics cards on laptops too or not?? I read Nvidia not supported now this function, but she still in Control Panel, and we can change it to Allow or Clamp. And if it works, what better for games, Allow or Clamp?? Because i not see any difference.
     
  2. tsunami231

    tsunami231 Ancient Guru

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    Allow/Clamp only works in OpenGL DX since fermi? i think?

    LoD bias can be use to make blurry image less blurry when SSGAA is used
     
  3. -Tj-

    -Tj- Ancient Guru

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    It works, but use nvinspector to control negative LOD.
    -0.250 to -1.000, more is overkill, sometimes even -0.500 is by most games, unless there is really bad postAA going on.

    Also too much negative LOD can cause texture shimmering really quick (jitter or extra aliasing).
     
  4. Groovex

    Groovex New Member

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    So what I should choose in the control panel Nvidia?? I don't understand. What better for games?? Some people told Clamp much much better then Allow, but another people said "don't use Clamp, its not supported Nvidia now. You not see some difference if choose it. Just leave Allow defualt." : (( What number use Allow in Control Panel Nvidia?? How much?? More than -2.000 or something another??
     
    Last edited: Nov 8, 2014

  5. -Tj-

    -Tj- Ancient Guru

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    You select it per game profile and it must be set to "allow", you can control both in nvinspector game profiles editor,

    btw nvidia control panel doesn't do anything since it doesnt have those LOD sliders, only nvinspector has them.
    http://forums.guru3d.com/showthread.php?t=393697

    When extracted, pin main exe to taskbar, open it once and close main app (so it makes taskbar shortcuts tasks).
    Now click on its icon in taskbar (right-click), and click on Driver profile settings

    e.g.
    [​IMG]
     
  6. MaxBlade

    MaxBlade Master Guru

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    Yeah I love negative lod. A there is no such thing as "over kill" lol. Play with it ..
     
  7. Memorian

    Memorian Ancient Guru

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    Clamp is still not working..
     
  8. MrBonk

    MrBonk Ancient Guru

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    It works just fine when "Driver controlled Lod Bias " is off.

    You dont' need it anyway.
     
  9. tsunami231

    tsunami231 Ancient Guru

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    Say what now? Clamped works in DX games when Driver controlled LOD bias is off?
     
  10. Memorian

    Memorian Ancient Guru

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    It doesn't work unless you apply Guz patch.
     

  11. Bradders684

    Bradders684 Maha Guru

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    Memorian is correct, you need Guz's patch. Negative Clamp doesn't work with Fermi or newer cards.

    https://forums.geforce.com/default/...clamp-negative-lod-bias/post/4174240/#4174240
     
  12. Agent-A01

    Agent-A01 Ancient Guru

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    Has he updated it for latest drivers?
     
  13. Bradders684

    Bradders684 Maha Guru

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    It works as of September 13th according to this post.

    You can download the 64bit patcher here.
     
  14. Memorian

    Memorian Ancient Guru

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    ''Folder 123''.Should i create a folder named 123 or what ?
     
  15. Bradders684

    Bradders684 Maha Guru

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    You can if you want too, you don't need to though, the "nvd3dumx.dll" just has to be in the same folder as the patcher.
     

  16. tsunami231

    tsunami231 Ancient Guru

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    I will never understand why Nvidia did this purposely doing something that effect PQ, but hey
     
  17. remicius

    remicius Master Guru

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    is it worth to use lod bias with downsampling?
     
  18. gpvecchi

    gpvecchi Member Guru

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    May someone post a complete guide on how to set NV control panel and Inspector for best quality, please?
     
  19. RealNC

    RealNC Ancient Guru

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    Wait, wasn't the driver supposed to automatically adjust LOD bias now when using SGSSAA? This was mentioned here somewhere that recent drivers do this?
     
  20. HeavyHemi

    HeavyHemi Ancient Guru

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    Best quality for what?
     

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