and a user pointed me out that maybe i am leaving the openGL context in a different state each run, and that maybe i can switch openGL context.

wich made me look into: https://forum.processing.org/two/discussion/2879/processing-2-1-1-how-to-get-the-gl-context

Of course almost anyone seems more in the know about openGL JOGL ecc... than me and im REALLY far from attempting a pull.

i was wondering if it was possible to do something like

"switching context"

    frame.addWindowListener( new WindowAdapter() {
            @ Override
            public void windowClosing(WindowEvent we) {

                "clearing or switching context"

                System.exit(0);
            }
        } );

and/or maybe if someone can advise me on renderers used by processing or possible combinations to obtain a clean state.

Beacause using awt in addition to processing seems usefull enough to me and its working 80% of the time. of course 20% random fail makes what im doing trash.