Posted by kitfox on Mar 22, 2012; 6:42pm
URL: https://forum.jogamp.org/Compositing-brush-strokes-offscreen-tp3848844p3849408.html

I'm not using NEWT.  I'm currently using a GLJPanel because I need this to run inside a Swing application. (I'm not familiar with the NEWT stuff - can I use it to run in a Swing component?)

I know that the GLJPanel has a getGL() method.  Would I be able to call that, allocate a framebuffer with a texture, render to the framebuffer texture and then read the framebuffer into the CPU?  Or is there some restriction that forces me to call GL methods only inside the GLEventListener callbacks?