behdad/glyphy — pull request #2 by ds-hwang (2014-06-18 12:30:53+00:00)
Title: Make isotropic antialiasing logic more readable.

Currently, pixel shader multiplies sqrt(2) to signed distance and then applies
anti aliase by 1.5 pixel. It can make us confused. This patch removes redundant
sqrt(2) and then applies anti alias by just 1 pixel.