Posted by MarcoNL on Oct 25, 2021; 7:53am
URL: https://forum.jogamp.org/Incorrect-context-on-GLCanvas-drawable-tp4041391p4041400.html

Hello Julien,

thank you for your reply.

Actually, I spent several hours in an effort to create a self-contained test case, demonstrating the crash outside my own VTK-based application, but so far I've been unable to do so.

So, for now, the question is: can you imagine any reason why JOGL's GLCanvas may correctly return a "correct" OpenGL 4.6 GLContext in my application's init() callback [calling drawable.getContext()], and then at a certain point, for the same GLCanvas, with the same GLProfile and the same GLCapabilities, return an "incorrect" OpenGL 1.1 GLContext at a later invocation of my application's init() callback [calling drawable.getContext()]?

May an incomplete / incorrect release of some OpenGL resources cause this behavior in your opinion? May some threading issues (I don't see which ones, since my init() always executes on the EDT...) cause a similar behavior? May creation of a new "root" JFrame somehow cause a similar behavior?

Sorry for asking such generic questions, but I am looking for some guidance about where to look to build a test case which indeed is able to reproduce the issue I am experiencing inside my application.

I am looking forward to hearing from you.
Thanks and best regards,

Marco Sambin