An enhanced version of SSAA (supersampling AA) that only supersamples parts of the scene rather than the whole thing (though supersampling of the whole scene may happen depending on scene complexity).
The first video game about Multisample Anti-Aliasing was released on November 22, 2004.
Because this is optimized version of SSAA, its performance ranges from about exactly same as SSAA to something significantly better based on scene complexity and detected edges.
Parent groupSpatial anti-aliasing
|A||1999 - MSAA published(?)|