(sigmoid 
.(gradient 
..(y 
...(min-component 
....(length 
.....(square 
......(v+ 
.......(checker 1.3313 
........(sigmoid 
.........(gradient 
..........(y 
...........(min-component 
............(polar 
.............(square 
..............(v+ 
...............(checker 1.3313 
................(vmod 
.................(saturation-from-rgb 
..................(vcos 
...................(vround [2.2497 0.5566]))) 
.................(vabs pos))) pos)))))))) pos)))))))