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[gershwinou]

Hi,
I have developed an app on "raw" JOGL ie doing the OpenGL myself. However i want to use Hud on top of that. How is it possible?
Is there a mechanism to let the user draw his own openGL.
what i may want to to is to replace my frame manager (code is following) with the xith logic but still be able to call mainCanvas.repaint() for each frame. mainCanvas being an instance of javax.media.opengl.GLCanvas

SwingWorker worker = new SwingWorker<Void, Void>() {

            public Void doInBackground() {
                while (true) {
                    try {
                        Thread.sleep(25);
                        //some more logic like idle, force, screenshot etc...
                        mainCanvas.repaint();
                    } catch (InterruptedException ex) {
                       ...
                    }
                }
            }
        };

[Marvin Fröhlich]

You cannot set xith on top of an existing OpenGL application. But you can do it the other way round, which should be possible pretty close to what you need.

Setup a xith environment, that manages your canvas. Add a RenderCallback to your main RenderPass and use it to invoke your jogl code. And you can either tell the RenderLoop to not loop automatically, but you can proceed to the next frame by calling a method. Or you can work without the RenderLoop and do it on your own. But I definitely wouldn't recommend that.

Marvin

[gershwinou]

the RenderCallback sounds interesting. I'll check it out.