@Deprecated
    public boolean isFlushQueues() {
        return shadowRenderer.isFlushQueues();
    }
isFlushQueues does nothing and is kept only for backward compatibility.
@return <code>false</code>
@deprecated does nothing and is kept only for backward compatibility.
jme3-vr/src/main/java/com/jme3/shadow/AbstractShadowFilterVR.java