Posted by gouessej on Feb 29, 2016; 12:23pm
URL: https://forum.jogamp.org/JOGL-Overlay-drawing-problem-tp4036075p4036386.html

Ok I have spent some time in reading again and again the source code of the texture renderer used in the overlay. Actually, it doesn't clear the image used internally to store the results of the Java2D drawing.

I advise you to look at the documentation of Overlay.contentsLost(). If it returns false, there is still something in the overlay which is the expected behaviour but not what you want.