public Vector3f getScreenCoordinates(Vector3f worldPosition, Vector3f store) { return getRenderer().getCamera().getScreenCoordinates(worldPosition, store);
public Vector3f getScreenCoordinates(Vector3f worldPosition) { return getScreenCoordinates(worldPosition, null);
    public Vector3f getScreenCoordinates(Vector3f worldPosition, Vector3f store) {        return getRenderer().getCamera().getScreenCoordinates(worldPosition,                store);    }