private void moreSamples() {
        int numSamples = settings.getSamples();
        numSamples += 2;
        System.out.println("numSamples = " + numSamples);
        settings.setSamples(numSamples);
        setSettings(settings);

        restart();
    }
Restart the app, requesting 2 more MSAA samples per pixel.
jme3-examples/src/main/java/jme3test/renderer/TestIssue798.java