private void prepareSideContext() {
if (sideContext == null) {
GLDrawableFactory factory = canvas.getFactory();
sideContext = factory.createOffscreenAutoDrawable(null, chosenCapabilities, null, 1, 1);
((GLOffscreenAutoDrawable) sideContext).setSharedContext(canvas.getContext());
sideContext.addGLEventListener(g2dglListener);
}
Runnable work =
new Runnable() {
@Override
public void run() {
sideContext.display();
}
};
if (Threading.isOpenGLThread()) {
work.run();
} else {
Threading.invokeOnOpenGLThread(false, work);
}
}
