Martin wrote

gouessej wrote

It is different because it works. On some Windows machine, I don't dare setting this flag to true because the OpenGL pipeline is not in a very good health in Java under Windows (whereas it works fine under GNU Linux).

That's completely true. On my windows 7 machine, it does not work (all the interface remains white). I thought I was in a specific case with weird graphic device configuration.

Does it mean using JOGLG2D will be using GL efficiently for java 2d transforms? Such as:
Graphics2D.getTransform()
AffineTransform.getRotateInstance(angle);
AffineTransform.getTranslateInstance(position.getX(), position.getY());
AffineTransform.concatenate(...)
...

Regards,
Martin