There has been much talk about the new R520 bread of ATI cards that are slated to be released this week. One of the bigger features that sets these new cards appart from their Nvidia counterparts is the support for adaptive anti-aliasing. Earlier this week ATI released a new version of their ATI Catalyst video drivers. In them they apparently added support for these new R520 cards.

Ted from Beyond3D forums has discovered a way to enable adaptive anti-aliasing on existing older X8XX cards and many people are reporting that this new functionality works just dandy!

You can see the massive difference for yourself:

Adaptive Anti-Aliasing
No Adaptive Anti-Aliasing

If you already have the ATI Catalyst 5.9 drivers and own an ATI X8XX card you can easily enable this:

Here are the steps:

set ASTT_NA to 0 in the registry:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Video\{5A61609A-036A-4D32-B447-F0E42DA9714D}\0000

5A61609A-036A-4D32-B447-F0E42DA9714D this number is different for every one , you may have multiple numbers at the location because of multiple driver installation but only one is active. To be sure just change the value in every one.

If you use CCC try icon you will now have a new option in the AA menu

Quote:
I made a litte mistake. To enable adaptive AA you have to create a new entry ASTT and set it to 1. The ASTT_NA entry i mentioned above is only there to make the option visible in the CCC tray icon.

it AA alpha test textures and it works