Good quality, moderate performance hit but does not touch special effects and alpha textures without "transparency antialiasing" enabled (name differs with Nvidia and AMD), but that causes a major performance hit. Before post processing antialiasing came this was the most common form of AA and what AA settings in games always referred to. Renders screen several times (the X-number refers to how many times) and based on those it averages the jaggies out. So far, these are PC'centric options added in this game, and we thank Crytek for doing it, these kinds of things should be standard on the PC platform. We hope to see SMAA improved and implemented in other games. Overall, SMAA is the winner in this game, and should be given two thumbs up for implementing it in this game. It is as if you are running with No AA performance wise. The SMAA Low 1X option performs exactly like FXAA, that is to say it incurs no performance hit compared to No AA. There are three SMAA modes in this game, SMAA Low 1X, SMAA Medium 2XT, and SMAA High 4X. The second benefit is that it can behave performance wise just like FXAA at the lower levels. The major benefit is that it doesn't blur textures like FXAA. SMAA uses Morphological AA, a post-process technique from AMD called MLAA plus hardware MSAA/SSAA techniques. SMAA works on the same principals of FXAA, but with added benefits. Since this is a shader + hardware technology, it means it does provide AA on alpha textures and specular aliasing, unlike traditional MSAA. SMAA is the new kid in town, and incorporates AMD's Morphological MLAA technology base, plus the traditional hardware technologies of MSAA and SSAA to improve image quality, with much less of a performance hit as traditional MSAA or SSAA. I use the injector for Borderlands 2 and its directly available in the game for Crysis 3. little to no performance hit like FXAA but without the annoying blurring of FXAA. SMAA is my favorite from what little I have seen of it.
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