during search J language, I found these nice patterns, and a lightwave plugins( rope editor)
cool realtime lw rope
http://www.next4d.com./Rope_Editor_In_Action.htm
patterns, we can use as texture. I will try to understand the algorithm and implement them for blender if possible
http://webbox.lafayette.edu/~reiterc/mvp/st_descent/index.html
“Gallery of Fractals, Chaos and Symmetry” on http://www.jsoftware.com/jwiki/Studio/Gallery