public boolean isGuiOverdraw(){
        return overdraw;
    }
Get if the GUI has to be displayed even if it is behind objects.
@return <code>true</code> if the GUI has to use curved surface and <code>false</code> otherwise.
@see #setGuiOverdraw(boolean)
jme3-vr/src/main/java/com/jme3/util/VRGuiManager.java