(radius .(adjust-hue ..(x ...(vfloor ....(vconcat .....(radius ......(hsl-from-rgb .......(dot ........(sigmoid [2.0794 -0.9574 -1.5472 -0.1429]) ........(length pos)))) [-2.8368 2.3911 -1.2659 2.622]))) ..(vcos ...(z ....(hsl-from-rgb .....(theta ......(hsl-from-rgb pos)))))))