This is a highly customizable implementation of Subpixel Morphological Antialiasing for Unity3D.
Tested with Unity 5+ (Personal or Pro). Works with the deferred & forward rendering paths, in gamma or linear color space. Works with Directx 9 and Directx 11 targets, but it doesn't fully works with OpenGL at the moment (the edge detection pass is a bit broken).
It comes with a few quality presets but you can easily build your own in the inspector. Every inspector setting comes with a help popup so you shouldn't have to dig into the (documented) source code.
Right now it implements SMAA 1x (+ predication). Implementing Temporal SMAA (T2x) should be doable, but the spatial (S2x) and spatial + temporal (4x) variants aren't possible in Unity right now.
Drop the SMAA folder in your project and add the SMAA script to your camera (or select your camera and use Component -> Image Effects -> Subpixel Morphological Antialiasing).
Pull requests are welcomed !
Zlib (see License.txt)