I wonder should I restart and rewrite my eschered procedural patterns to 3.5 ?
Is there any person interested ? Any suggestions what should I add ?

Here are old examples of it:

http://news.povray.org/39cb7e16%40news.povray.org
http://news.povray.org/39d0c21a%40news.povray.org
http://news.povray.org/39e49cb3%40news.povray.org

ABX
--
disc{z,-z 5#macro O()asc(substr("-+((1*(,1,/.-,*/(,&.323/'1"e,1))*.1-4#declare
e=e-1;#end#local e=26;pigment{#local g=function(_){ceil(_)-_}function#local//X
k=function{pattern{object{sphere_sweep{linear_spline 13#while(e>0)<O(),O()//AB
>.01#end}}}}{k(g(atan2(x,y)),g(ln((y+x)^2+1e-5)),0)}}finish{ambient 1}}//POV35

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