I just noticed that someone uploaded to YouTube an old animation I did for Siggraph way back in 1987. It is nice for me to see, as my own copy (on tape) had degraded to the point it was virtually unviewable.
At the time my wife was getting her Phd at Princeton and this gave me access to a brand new lab filled with the first generation SGI Iris computers. No classes were yet using the lab so I had it pretty much to myself. There was no animation software, however, so I had to write my own, as well as write drivers for the expensive frame at a time video recorder (which broke as a result of recording this animation). The animation was all hardware drawn with an early version of GL. Rather than saving images to files, which would have been a lot of memory for a full animation in those days, each frame was hardware drawn then captured on video. The video recorder had to pause a minute or so while the frame was rendered then do a preroll to capture it, something that is rather hard on the machine when doing it for days at a time.There was no hardware texturing back then (I'm not even sure if specular shading was available). In the simple animation system I wrote everything was generated by a script that would invoke procedures to draw objects. There was no UI and no animation curves but rather sequences of ease-in, ease out statements written to a script.
I was really into programming recursive procedures and was very excited about the new ability to explore 3D mathematical patterns using computer animation. The video shows a Menger sponge, which has zero volume at the limit( it is nothing but holes ) and infinite surface area, along with related structures. As well there are some animated spirograph shapes inspired by the pioneering work of John Whitney Sr. who developed the field of visual music.
As I was leaving the lab had just gotten copies of the very first Alias system, and I was quite impressed with the quality of the software rendering, texturing and the nurbs surfacing, although I could not have done this animation with that system. Little did I know at the time that I would go on to work at Alias a few years later.