What must i do ?

FXAA on and AA of ? or FXAA off and AA on ? or must enable both in the same time ?

FXAA is a lot faster but it doesn't look as good as AA.

I don't think you can enable both at the same time, or if you do then one will just overwrite the other.

I. Do. Not. Have. The. Foggiest.

I play skyrim in this setting : FXAA on 8x antialiasing 16x anisotropic on

http://www.codinghorror.com/blog/2011/12/fast-approximate-anti-aliasing-fxaa.html

I recommend you read it, it's not very technical.

thanks

Right now i'm reading this check the link blow :
http://www.hardocp.com/article/2011/11/28/skyrim_amd_crossfirex_performance_iq_review/3

right now i'm sure its the best that you turn on FXAA and Antialiasing and anisotrapic , all in the same time

Edit your posts, don't just post again and again.

I'm pretty sure you can't have both at the same time due to technical reasons. Unless I don't really understand FXAA, which is entirely possible.

Check this link :
http://www.hardocp.com/article/2011/11/28/skyrim_amd_crossfirex_performance_iq_review/3

Yes thanks for reminding me , yes i must edit them

I saw that link, and I read the article already.

HARDOCP says : When we looked at image quality comparisons, we found that turning on FXAA does have its advantages alongside Transparency AA. You get further improved aliasing on alpha textures, but more importantly you get specular aliasing which has improvements all over the game that Transparency AA cannot provide. By having all of these methods enabled, you are ensured the absolute best image quality, with no signs of aliasing.

The http://www.geforce.com/Optimize/Guides/the-elder-scrolls-v-skyrim-tweak-guide also explains it. At the top you can jump to the page 'FXAA and water'.

From my quick read of the link you posted, traditional AA messes with things a the stage where polygons and such are being procesed, while FXAA takes the image just before it gets sent off to the monitor and smooths things out there. As a result, the code is dealing with two dimensions rather than three.

So it should be quite possible to have traditional AA improving things as best it can, then FXAA taking the resultant frame and polishing it a little more.

FXAA adds a little but of bluriness, which I think looks good anyway, so I use that one. No idea what the difference is though.