echo "0 1" \
 | unu reshape -s 1 2 \
 | unu resample -s = 1024 -k tent -c node \
 | unu save -f text -o ramp.txt

echo "-1.0 0.0   -0.8 0.0    0.8 1.0    1.0 1.0" \
 | unu reshape -s 2 4 \
 | unu imap -i ramp.txt -r -m - \
 | unu axinfo -a 0 -l "A" \
 | unu axinfo -a 1 -l "gage(scalar:v)" -mm -1.0 1.0 -o val-txf.nrrd

rm -f ramp.txt

miter -i sph.nrrd -o sph-rend.nrrd @cam.txt \
  -ld 0.3 -1 -2.2 -am 1 1 1 -ads 0.0 0.7 0.3 -sp 70 \
  -k00 cubic:1,0 -k11 cubicd:1,0 -k22 cubicdd:1,0 \
  -step 0.008 -ref 0.01 -nt 30 -n1 0.99 \
  -txf val-txf.nrrd

overrgb -i sph-rend.nrrd -g 1.4 -b 0.2 0.3 0.4 -o sph-blu.png
overrgb -i sph-rend.nrrd -g 1.4 -b 0.7 0.3 0.2 -o sph-red.png

miter -i pin.nrrd -o pin-rend.nrrd @cam.txt \
  -ld 0.3 -1 -2.2 -am 1 1 1 -ads 0.0 0.7 0.3 -sp 70 \
  -k00 cubic:1,0 -k11 cubicd:1,0 -k22 cubicdd:1,0 \
  -step 0.008 -ref 0.01 -nt 30 -n1 0.99 \
  -txf val-txf.nrrd

overrgb -i pin-rend.nrrd -g 1.4 -b 0.2 0.3 0.4 -o pin-blu.png
overrgb -i pin-rend.nrrd -g 1.4 -b 0.7 0.3 0.2 -o pin-red.png