@Override
    public String toString() {
        return "Region [start=" + start + ", end=" + end + ", size=" + (end - start) + ", dirty=" + dirty + "]";
    }
Returns true if this region includes the entire buffer. Can be used for
optimization.

@return
jme3-core/src/main/java/com/jme3/shader/bufferobject/BufferRegion.java