Posted by Wade Walker on Aug 14, 2011; 6:52pm
URL: https://forum.jogamp.org/GLJPanel-in-Lion-tp3250682p3254108.html

I didn't think of that... if it's always in screen coordinates, I can't think how those would get messed up except by a GL driver problem. Perhaps since GLJPanel does offscreen rendering, a GL driver bug could flip the coordinates available to the shader for that case, but not for the direct rendering case.

The fact that the colors are incorrect seems to rule out a simple flipping of GLJPanel's offscreen rendering when it copies to the main buffer (which was my first thought).