(v+ .(sigmoid ..(turbulate ...(vsqrt ....(vfloor .....(vconcat ......(saturation-from-rgb .......(vsin snoise)) ......(height-normal [-1.2403 2.7359 2.8229])))) ...(height ....(blue-from-hsl .....(y [-2.3111 -1.3072 1.2704]))))) .(red-from-hsl ..(square ...(vcos ....(gradient .....(vabs ......(normalize grain)))))))