Does anyone know of a clearly written reference implementation of morphological antialiasing (MLAA)?
Intel provide a paper and reference implementation at the following address, but I find the code very opaque.
http://visual-computing.intel-research.net/publications/publications.htm
I don't know whether it's clearer than the original paper, but there is another implementation of the technique (or a variation on it) which I spotted in this year's Siggraph material.
http://igm.univ-mlv.fr/~biri/mlaa-gpu/
As to whether or not you'd get a better answer over at the main site, I don't know - I'd say the majority of people interested in this technique are probably game devs...
These guys have been promising to put some code up for a bit. So this doesn't quite answer your question, but it might be something worth tuning into later.