There is an iris tut here : http://arcana.daz3d.com/tutorials/ko/ko01/index.html Also over at mec4d.com there is a tut in the forums (if you are a member) about making eye textures from an eyephoto. http://forums.mec4d.com/viewtopic.php?t=74 You have to be a member tho. But its free so it might be worth it. Those are the only 2 I know of, but if you find anymore please let me know! :) Cheers, Gina