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