@Override
    public void write(JmeExporter ex) throws IOException {
        super.write(ex);
        ex.getCapsule(this).write(camControl, "camControl", null);
    }
Called internally by com.jme3.util.clone.Cloner.  Do not call directly.
jme3-core/src/main/java/com/jme3/scene/CameraNode.java