(vfrac .(v+ ..(cross3 ...(sigmoid ....(offset .....(vpow ......(vabs .......(offset ........(vfrac grain) [1.7896 2.0109 -1.0995 -2.8122])) pos) pos)) ...(vpow pos ....(v+ .....(v+ ......(normalize -0.4057) ......(v* pos [1.9751 2.5151])) .....(vcos [-0.259 -1.6554])))) [1.0445 0.4866 0.2451]))