Laurent Smadja and Scott Baker informed me of a couple of problems with fugFeedbackGL, namely that alpha wasn’t working quite as expected, and that on some Apple computers, the resulting image was stretched incorrectly.
There is now an 1.1 update for fugFeedbackGL for both Windows and Apple OSX that fixes these issues.
Existing customers can download the update by visiting the My Account page.
thanks alex ! i love this plug , a must to have !