This or This or ... ? MC Escher Spirite! Without image it's very difficult to imagine what do you want! Line 2 Tubes by Didier Bur for bottom one! Can be applied to your all image in one pass (surrely very long calculus) So better calculate one then to make some Dim repeat [image: 9uBd_this_or_this.jpg] [image: e1Ou_GIF_pattern.gif]