View Full Version : An up-to-date description of FXAA?

10-31-2014, 12:04 PM

I'm implementing FXAA, and in typical style for an algorithm that everyone and his dog has implemented, the available information on the algorithm seems to be pitiful.

There's the original whitepaper:


There's a presentation on the 3.11 version of the algorithm (presumably the most recent), that's so vague as to be pretty useless:


The author maintains a blog, and apparently decided it was in the best interests of the internet to delete all of his posts on the algorithm years back.

There are multiple implementations:



... both of which only seem to have a passing resemblance to the algorithm described in the original whitepaper.

Does anyone have a detailed and up-to-date description of the current algorithm? I'm interested in doing a clean room implementation, not copying and pasting stuff I found online. An 800 line header file full of '#ifdefs doesn't qualify!