View Full Version : Question about setting gamma correct and transparency AA

12-04-05, 05:20 PM
Been messing around with this new 7800 GT, and I had a question about the gamma correct and transparency FSAA settings. If I want either or both of them enabled, do I need to set the overall level of AA in the driver control panel, or can I leave it at application controlled and use in-game settings? Take Half-Life 2 for example, can I leave it at 4x AA in the game but still use gamma correct and transparency AA? Thanks in advance.

12-04-05, 05:44 PM
According to this article (http://www.hothardware.com/hothardware.com_non_ssl/viewarticle.aspx?page=6&articleid=697&cid=2) it appears you need to apply both the nvidia AA plus the TAA....

NVIDIA was intentionally tight-lipped and didn't explain how transparency anti-aliasing works in-depth, but the results speak for themselves. With transparency anti-aliasing enabled, on top of NVIDIA's standard anti-aliasing mode, the GeForce 7800 GTX produced the cleanest images of the bunch.

12-04-05, 09:51 PM
Hmm, I've wondered about that myself but haven't actually tested it. I figured it would work either way but if it doesn't, they probably need to make that point somewhere obvious (like a tooltip when enabling it or something).

12-04-05, 10:50 PM
oops :angel: i fixed the link in my previous post, it wasn't linked to the article,

here's a bit more from the article....

Great visuals always come at the expense of performance, though, so we ran a couple of tests with Half-Life 2 with both multi-sampling and super-sampling transparency anti-aliasing enabled in conjunction with NVIDIA's standard anti-aliasing algorithm. As you can see, enabling either transparency anti-aliasing mode had a negligible impact on performance in Half-Life 2. In fact, with multi-sampling transparency AA enabled, we got slightly higher frame rates. We asked NVIDIA if there was a problem with this mode in the driver revision we used for testing and were told there was no problem, and that the impact of performance was trivial.

I did some testing with Far Cry and TAA works with or without Standard AA applied in the CP, here's some screenshots....

No TAA, 4AA Application Controlled(73.01 fps)
http://img205.imageshack.us/img205/51/notaa4aaapp5yu.th.jpg (http://img205.imageshack.us/my.php?image=notaa4aaapp5yu.jpg)

TAA, Multisampling, 4AA Application Controlled(72.28 fps)
http://img205.imageshack.us/img205/7844/4aamstaa9vd.th.jpg (http://img205.imageshack.us/my.php?image=4aamstaa9vd.jpg)

TAA, Supersampling, 4AA Application Controlled(44.72 fps)
http://img235.imageshack.us/img235/9185/4aasstaa6hp.th.jpg (http://img235.imageshack.us/my.php?image=4aasstaa6hp.jpg)

TAA, Supersampling, Gamma correct = on, 4AA Application Controlled(44.73 fps)
http://img216.imageshack.us/img216/1781/4aassaagaaon2tl.th.jpg (http://img216.imageshack.us/my.php?image=4aassaagaaon2tl.jpg)

Supersampling has a large affect on fps as you can see

12-07-05, 09:44 PM
I think it should work with & without.
take Splinter Cell3 for exmaple .. TAA worked for me with AA enabled only in-game.