Hardware AA is done differently. IT takes either 2, 4, 6 samples of colors from within ONE Pixel and averages them together. ATI uses a rotated method kinda like this
________
| * |
| * |
| |
| * |
___*____
(4 samples)
Nvidia does this
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| * |
| |
|* * |
| |
____*____
(4 samples)
which isn't as good as ATI's.
Anyways, if u want your games to look better for a screen shot or some other reason. That's fine, but anything that's run time. NO way, i think u know that tho.
________
| * |
| * |
| |
| * |
___*____
(4 samples)
Nvidia does this
________
| * |
| |
|* * |
| |
____*____
(4 samples)
which isn't as good as ATI's.
Anyways, if u want your games to look better for a screen shot or some other reason. That's fine, but anything that's run time. NO way, i think u know that tho.