Posted by gouessej on May 28, 2023; 9:22pm
URL: https://forum.jogamp.org/Offscreen-buffering-and-antialiasing-not-working-tp4042649p4042659.html

When you store the GL instance into a field, you might use it either on the wrong thread or on the thread on which you created it but not when its OpenGL context is current or when it has become invalid. You can store it into a local variable and use it preferably in a GLEventListener. If you don't follow my advice, you will just go into troubles one day whereas it can be avoided.

We are all newbies one day. I was a newbie when I began learning DOS in 1989, I was a newbie again when I started using JOGL in about 2006, it's ok.