Zoon, The first image is exactly what I'm looking for! Now, I understand using the numbers to form a greyscale strip (I am assuming it is like the one on the link containing transparency data). I guess my real question is how to get that data from the strip into a concentric ring texture that is capable of being mapped on an alpha plane? I use Paint shop Pro (Mainly cause it was cheap and pretty functional). Do you make an image with concentric circles and use it in greyscale as your alpha map? Sorry if I appear a bit pedantic. You have some wonderful images on your site, I appreciate the replies. Dr. Nash