The power of two thing for texture sizes doesn't hold true nowerdays. About ten years ago it was beneficial to use powers of two because processors and therefore applications could calculate row positions faster, but modern processors really don't see a benefit and most access to images need to go through various API levels and/or use precalculated lists of row addresses. On the other hand, it may beneficial when reducing texture sizes to do so by 1/2 posers, i.e. 50%, 25% etc. reduction. Thats because most resampling/filtering calculations do give better results when they applied at actaula pixel boundaries. Bill