OpenImageIO/oiio — pull request #432 by rmv (2012-09-03 17:57:35+00:00)
Title: Bring certain filtering trunk fixes to 0.10.x

This is a patch as concise as possible to bring into 0.10.x some fixes from the main line.

Specifically those in pull requests 417 and 422 that have to do with using the major ellipse axis for sampling, and some additional changes to improve numerical stability.