Conical fill experiment

It’s really interesting what you can do with a conical fill layer - I used it to recreate the glow in the middle of this animation…

youtu.be/Mvvl8DfHIKo

I wonder how did they do those effects on 1979
youtu.be/F2KePbbbk0Q
You’ve get it very close!
-G

In 1979 they would have used slit scan - en.wikipedia.org/wiki/Optical_printer