It seems AF isn't working on any nvidia cards. In game AF setting isn't working here:
Card: Nvidia 6600GT
Drivers: 174.20
I get the same bug as nesrulz too. With the in-game AF setting on anywhere between 2x and 16x, and with all the mip biases set to 0: press Shift+F4 and then all mip bias settings become negative. Select AF of 0x or 1x and it fixes itself.
nVidia 7600GT here, driver version 169.25, running Windows Vista 32-bit... AF works perfectly... All options from "None" to "16x" are available, and I can see noticeable improvements between them...
EDIT: I don't even get that error when using shift + F4
2 LFSn00b: All settings in my driver are set to "Application controlled"...
2 Scawen: I'm uploading screenshots as I'm typing this, so you can see the difference. I'll also try upgrading my drivers to a newer version to see if it makes any changes...
EDIT: Downloading BETA version 169.44...
EDIT2: Here they are, shift + F4 makes absolutely no difference... None, 1x, 2x, 4x, 8x, 16x
Sorry for large images, but I didn't want to lose any detail...
Alt-tab messes up the mip filtering, everything becomes very grainy / sparkly. The same thing happens when changing resolution. ??Shift-F4 doesn't do it unless I deactivate the window. ??
I can get it to look like I originally set it by selecting None, 1X or 2X. 4X, 8X or 16X do nothing.
Could this have something to do with lfs losing focus?
Maybe besides the point, but I noticed with earlier versions of LFS that antialiasing did not work unless i switched resolutions back and forth.
edit: attached screenshots: when i alt-tabbed with the settings in the first shot, nothing changed. the last two shots show a "before and after" shots. (yes i made everything as blurry as possible to emphasize the change)
Ok, because I'm looking, and I can see so light changes, compared to the drastic change made by AF on mine. Also, reading the MIP bias info-texts might explain a bit better.
Here a little illustration on what forced AF level does for me, note how AF in LFS is always at 16x. When I turn AF level to "Application Controlled" the LFS setting changes nothing, though it does apply some sort of filtering.