These are just slides btw and unfortunately probably not helpful without a lecture recording (which is not included). The slides really look great, but I wish there was commentary along with them. (they are not self contained)
Blinn provides some notes as to where his material comes from (see the page). He also mentions that some of this material was presented previously in some of his Jim Blinn's Corner articles. In particular:
* the "Lines in Space" series: https://ieeexplore.ieee.org/abstract/document/7047281
* the "How many different rational parametric cubic curves are there?" series: https://www.oreilly.com/library/view/jim-blinns-corner/97815...
Part of the reason why I posted this to HN is so that others can hopefully drop some more information on this "field".
See also the author's site: https://www.jimblinn.com/
https://en.m.wikipedia.org/wiki/Geometric_algebra https://en.m.wikipedia.org/wiki/Algebraic_geometry
I understood maybe a third of what he’s talking about, but it’s fascinating.
He seems to be using similar slides to those on this page.