Computers were also used to control the physical camera.
Captain Disallusionment does a video on Back to the Future special effects when he talks about how this was the era before CGI but that used computer controlled cameras to achieve certain special effects.
Captain Disallusionment does a video on Back to the Future special effects when he talks about how this was the era before CGI but that used computer controlled cameras to achieve certain special effects.
https://youtu.be/AtPA6nIBs5g