Neo-Visuals:
https://kaveh808.medium.com/10-17-000-polygons-should-be-eno...
Softimage:
https://kaveh808.medium.com/17-the-softimage-siggraph-sprint...
These were both 3D systems running on SGI boxes, which allowed interactive editing of animation curves. Softimage was used for "Jurassic Park" among other films.