The engineer preserving the last analog motion graphics machine (2017) [video]
youtube.com
youtube.com
I had hoped that it was about a mechanical optical printer that could composite and project multiple film images.
The closest thing I can think of was a multihead, aerial-image optical printer built by Ub Iwerks for Disney.
If anyone has knowledge of such devices I love to hear it. Apparently it could composite text, animation and live images.
http://nzpetesmatteshot.blogspot.com/2015/10/optical-effects...
This is super cool, but not the optical setup I thinking of.
I knew that the plans show an equatorial "cannon" because the scene used an earlier design of the Death Star, but I didn’t know it used an analog machine to make them. I wrongly assumed it was made by a digital computer.
youtube.com/watch?v=AA_D__HMuFw&t=229s
I'm like 75ish percent sure the Scanimate was used to generate the orbits the Death Star's targeting computer was showing as they were showing the moon coming out from behind the planet.
oh.. spoilers... for Star Wars....
You can read more about it here: https://news.ycombinator.com/item?id=26998308
And see other invited posts here: https://news.ycombinator.com/invited
What a beautiful machine.
Synthesizing color video might be a bit more work, but not that much more; I have analog synth patches that display animated logos and even allow you to play pong when hooked up to an oscilloscope (analog or digital). It's absolutely doable.