public void update() {
        onFrustumChange();
        onViewPortChange();
        //...this is always called by onFrustumChange()
        //onFrameChange();
    }
Updates the camera parameters by calling
<code>onFrustumChange</code>,<code>onViewPortChange</code> and
<code>onFrameChange</code>.

@see Camera#update()
jme3-core/src/main/java/com/jme3/renderer/Camera.java