Thursday, May 31, 2007

FSX: Relief for the Blurries

Spotlope, an excellent Flight Simulator scenery designer, blogs about a nice tweak for FS9 and FSX to reduce or even almost eliminate the scourge of the blurries. Note that this trick only works on nVidia cards.

Recently, Gary Summons noted that adding the line “MipBias=6″ to your fsx.cfg file would stop the sim from reverting to lower mips for ground textures in the near distance. I tried it, and it’s true. However, the other problem that then resulted on my system was an unacceptable shimmering in the textures. I found it more distracting than the original blurring, and backed out the change. The forum thread I read last night mentioned a companion tweak that makes MipBias viable: in addition to adding that line to your fsx.cfg, alter your video card settings to set “Negative LOD Bias” to clamp, instead of allow. The two fixes, in combination, made a dramatic difference in the sharpness of my FSX world without any noticable performance impact.
See more details on his blog.

1 comment:

  1. Anonymous11:56 AM EDT

    For those using this helpful post, but having trouble finding fsx.cfg.

    fsx.cfg in Windows Vista is located in a hidden folder on your C drive.

    Make sure under "Organize" you change "Folder and Search Options" to "View/ Show hidden files and folders"

    The location is
    C:\Users\username\AppData\Roaming\Microsoft\FSX

    Talk about buried!

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