@Override
    public void restart(){
        context.setSettings(settings);
        context.restart();
    }
Restarts the context, applying any changed settings.
<p>
Changes to the {@link AppSettings} of this Application are not
applied immediately; calling this method forces the context
to restart, applying the new settings.
jme3-vr/src/main/java/com/jme3/app/VRApplication.java