(vfrac .(height-normal ..(vdivide ...(vcos ....(hue-from-rgb .....(vmax clouds ......(adjust-hsl .......(offset [-0.7088 1.6225 0.3854 -2.9191] ........(vmin pos pos)) .......(vsqrt ........(alpha [-0.4268 1.2298 2.2925])))))) ...(scale ....(max-component .....(square agate)) ....(x [1.6276 0.5259 0.9456])))))