If you are ever putting together a material/texture to use, and want to know how it looks when "tiled",
consider getting free "amp tile viewer"
I've had it for years and just used it again and thought you might enjoy it too
Search Google to get it or go here:
http://www.ampsoft.net/utilities/TileViewer.php
Best use is to see how well an image is "seamless"
(PS you can make any image seamless using Photoshop; but it is not automatic, use offset filter)