public static void main(String[] args) {
    TestCameraNode app = new TestCameraNode();
    AppSettings s = new AppSettings(true);
    s.setFrameRate(100);
    app.setSettings(s);
    app.start();
  }
A 3rd-person camera node follows a target (teapot).  Follow the teapot with
WASD keys, rotate by dragging the mouse.
jme3-examples/src/main/java/jme3test/input/TestCameraNode.java