Posted by Demoscene Passivist on Jul 15, 2010; 10:03pm
URL: https://forum.jogamp.org/Texture-rendering-performance-problems-tp966089p970813.html

>If I didn't have hardware acceleration enabled, could the GLCanvas
>perform well anyway, while the GLJPanel not? (which is the situation I am experiencing)

Yes íf u didn't have hardware acceleration enabled in general both GLCanvas and GLJPanel would perform bad. But if the OpenGL driver is not capable of using the graphics hardware for only GLJPanel, then software fallback is used, wich is ofcourse slow. This seems to be the case when u use GLJPanel but NOT when u use GLCanvas.

>I'm also wondering if the options you suggested me could influence the
>JOGL performance even if I don't make use of Java2D:
>I only make some direct OpenGL calls via the GL object...

But u use the GLJPanel wich is a Swing-Component wich uses Java2D for rendering. So u are indirectly using Java2D.