Gee, you know how long it took me to line that light up with the tube end?
;-) I wasn't thinking to well when I put it together.
Okay, maybe it will be different if I use a straighter fiber tube then, as
suggested. Guess I better not rescale it all, to hasten that try, or it'd
get flat places in it. I can use the coordinates of the spline of the
sphere_sweep I think.
