# from, at, and up
-fr 2 -5.4 4.8 
-fr 3 -8.1 7.2
-at 0 0 0
-up 0 0 1

# Gordon likes his coordinates right-handed
-rh 

# the near and far clipping planes contain the volume, and
# the image plane cuts right through the middle of the volume
-ar -dn -2 -di 0 -df 2 

# these are big enough to capture the whole volume
-ur -1.5 1.5 -vr -1.5 1.5

# smallish image for now
-is 200 200