Aces High Bulletin Board

General Forums => Hardware and Software => Topic started by: sonicboom970 on October 06, 2006, 10:43:22 PM

Title: Aa&af
Post by: sonicboom970 on October 06, 2006, 10:43:22 PM
I cant get AA to work on AH2, i don't think I can get AF to work either. I use Nvtweak to change my AA&AF settings on ForceWare v.91.47.

 one day it just stopped. i know its not working because I turned AA off, then Took a screen shot. turned AA up to 8s(highest my card works at w/o blurring txt.) took another screen and overlayed them on PDN and the wings of the B-17 and its skin looked exatly the same but i cant tell if AF is working or not because im not too sure exatly what to look 4 on differences.
Title: Aa&af
Post by: Kev367th on October 07, 2006, 02:29:59 AM
AA should work, but if I remember correctly AH2 doesn't do/use AF.
Title: Aa&af
Post by: Skuzzy on October 07, 2006, 07:04:08 AM
AF is not a good thing to force.  It will blur many things in the game.  We do not control AA, so it can be forced.
Title: Aa&af
Post by: flakbait on October 07, 2006, 11:17:21 PM
AA makes things fuzzy in order to correct sharp edges. Things like wing edges, gun barrels, antennas, wires; they all look too sharp (pixelized) in most games. AA works to get rid of this by gently blurring hard edges out. At the low end (2-4x) you can get a good visual effect without taking a frame-rate hit from hell. Crank it too high and you may wind up needing glasses to sharpen what looks like a Gaussian blur gone berserk!

AF (anisotropic filtering) doesn't make things fuzzy, it makes them sharper. Specifically, it sharpens up mip-maps. In some games, such as FS2k2, this can make an amazing difference as the mip-mapping is done at very low quality. Kicking AF on to 4x makes the mip-map edges non-existent, resulting in gorgeous visuals. However! Activating AF in games that do have good or great mip-mapping implementation (such as LOMAC) simply winds up giving you a lower frame-rate with little to no visual effect. Look at Wiki's (http://en.wikipedia.org/wiki/Anisotropic_Filtering) page for AF and you'll see exactly what it is, what it does, and how the end result looks.

A word of warning: AF is very heavy in both video memory and video processor workload. Use at your frame-rate's peril.



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Flakbait [Delta6]
(http://www.wa-net.com/~delta6/sig/geek.gif)
Title: Aa&af
Post by: Skuzzy on October 08, 2006, 07:17:33 AM
flakbait, AF will make the text (as an example) in the game very blurry.  It does not sharpen textures, but rather introduces another algorithm which keeps textures from being blurred (compressed together) when at oblique angles, in the distant.

AF works on textures, which is what the radio bar text is.  AA works on the edges of the poly, and does nothing to the texture.
Title: Aa&af
Post by: sonicboom970 on October 09, 2006, 05:41:46 PM
well thanks for the response but none of it helps i already  know what aa does and i know what af does but not what to look for, but now that you mention it text does look better w/ af off in ah2 comparing off, 4x 2q , 4 gamma, 4 9-tap, and 16x ss with anti aliasing
just to see the wing edges are still pixely, and guns and cannons the same way. and everything else also still looks the same.

 i just cant get it to turn on and work although i did sufffer slightly decreased FPS when i had it on nothing compared to the decrease when i turned on 16ss when it worked
Title: Aa&af
Post by: 38ruk on October 12, 2006, 10:21:48 PM
I was just testing the 91.48 nvidia driver  and found that AA was broke on my 7800GT with this set .  Sometimes its hit or miss on driver releases, i would play around with a few and see what happens .
Title: Aa&af
Post by: Skuzzy on October 13, 2006, 06:52:25 AM
All the 9x.xx drivers are severely broken, in many ways.
Title: Aa&af
Post by: scottydawg on October 13, 2006, 08:37:13 AM
My experience with playing with AA and AF in AH2 (did I get enough acronyms in there?) is that when you crank them up, you get better in-close visuals, however you lose the ability to see 'dots', such as friendlies and cons farther away, in the sky and down on the ground...  such was one hilarious FSO where all my squaddies could see the cons and I was like "I can't see any, where are they?"... that was a short night for me.

Skuzzy, is there any plan to implement AA into the game code or settings so that it can be selective?