@Override
    public BufferRegion clone() {
        try {
            return (BufferRegion) super.clone();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
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