(offset 
.(vabs 
..(saturation-from-rgb velvet)) 
.(scale 8.936794083071376 
..(vsin 
...(v+ 
....(vmax 
.....(offset [1.0690510457271767 4.9328524751873974] 
......(rgb-from-hsl 
.......(gradient 
........(vabs 
.........(green-from-hsl velvet))))) 
.....(z 
......(gradient 
.......(offset 
........(green-from-hsl velvet) 
........(height 
.........(vabs 
..........(z velvet))))))) [0.4061 -0.1928 -1.0101 0.2881]))))