Lol, super bump for the point of arguing.
It's called red/ blue shift because that's what it would look like, if the planets could reach light speed. Since this is impossible, it is technically purple and orange. Imagine a colored hyperbola, with asymptotes being blue and red. Since the lines of the hyperbola can never reach the asymptotes, the shape can never be red/blue.
no
please get out if you are just going to argue, you clearly have no idea what you are talking about
colors are frequencies, the only "asymptotes" are zero and infinity
and purple is higher than blue anyway
I have my doubts that doing a color shift would work the way you want, but there is probably some stuff you can mess around with using clouds and the ground plane's shifting feature to make something interesting with particle fields going past.
