But what happens to edges? Look at the edge between two different polygons. Again, the top image is the 24-bit original, below that, the dithered version and below that, the filtered versions.









Again we notice that the filtered images are closer to the original one, but again the dithering artifact hasn't been removed completely. Lets look at the zoomed versions.










These zoomed image parts, again, show that the dithering patterns aren't removed completely. The edge suffers from the same blurring as the detail. I guess you could call that edge anti-aliasing, although its more blurring than anything else. (I hope I didn't bring 3dfx an idea here... I don't want them to claim free edge anti-aliasing because of this... =^)