(offset 
.(vabs 
..(green-from-hsl velvet)) 
.(scale 8.936794083071376 
..(scale 8.053170372008376 
...(vdivide wood 
....(scale 1.4204384461405266 
.....(vsin 
......(vpow 
.......(vmax 
........(offset 
.........(rgb-from-hsl 
..........(gradient 
...........(vabs 
............(green-from-hsl velvet)))) 
.........(rgb-from-hsl 
..........(gradient 
...........(vabs 
............(green-from-hsl velvet))))) 
........(z 
.........(gradient 
..........(average 
...........(green-from-hsl velvet) 
...........(height 
............(vabs 
.............(z velvet))))))) [0.4061 -0.1928 -1.0101 0.2881])))))))