(saturation-from-rgb .(v- ..(height-normal ...(t ....(vcos .....(z ......(dot [-0.0208 -1.1463 -0.705] .......(vcos -2.2951)))))) ..(max-component ...(vconcat ....(alpha [2.3632 -1.5845 -0.9447 -1.7066]) vplasma))))