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.
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)
TAA, Multisampling, 4AA Application Controlled(72.28 fps)
TAA, Supersampling, 4AA Application Controlled(44.72 fps)
TAA, Supersampling, Gamma correct = on, 4AA Application Controlled(44.73 fps)
Supersampling has a large affect on fps as you can see
I think it should work with & without.
take Splinter Cell3 for exmaple .. TAA worked for me with AA enabled only in-game.
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