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[Techpowerup.com] Batman: Arkham Asylum Enables AA Only on NVIDIA Hardware on PCs - i4memory.com - different look at memory
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Old 30-09-2009, 01:21 AM   #1
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[Techpowerup.com] Batman: Arkham Asylum Enables AA Only on NVIDIA Hardware on PCs

Anti-Aliasing has been one of the most basic image-quality enhancements available in today's games. PC graphics hardware manufacturers regard it as more of an industry standard, and game developers echo with them, by integrating anti-aliasing (AA) features in the game, as part of its engine. This allows the game to selectively implement AA in parts of the 3D scene, so even as the overall image quality of the scene is improved, so is performance, by making sure that not every object in the scene is given AA. It seems that in one of the most well marketed games of the year, Batman: Arkham Asylum, doesn't like to work with ATI Radeon graphics cards when it comes to its in-game AA implementation.

Developed under NVIDIA's The Way it's Meant to be Played program, and featuring NVIDIA's PhysX technology, the game's launcher disables in-game AA when it detects AMD's ATI Radeon graphics hardware. AMD's Ian McNaughton in his recent blog thread said that they had confirmed this by an experiment where they ran ATI Radeon hardware under changed device IDs. Says McNaughton: "Additionally, the in-game AA option was removed when ATI cards are detected. We were able to confirm this by changing the ids of ATI graphics cards in the Batman demo. By tricking the application, we were able to get in-game AA option where our performance was significantly enhanced." He further adds that the option is not available for the retail game as there is a secure-rom.

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