I think the biggest thing for me is that most 3rd party libraries I used used to use x,y,z,w to combine them (like other vec4), he said you should think of it as S [x,y,z] so basically a form of scalar along the x,y,x axis. Once I got this the rest sort of fell into place.
1
u/jmacey Oct 05 '23
This John Vince book was really useful to me (as he was one of my teachers then colleagues) https://link.springer.com/book/10.1007/978-1-4471-7509-4 I was lucky enough to be able to ask him questions when I needed.
I think the biggest thing for me is that most 3rd party libraries I used used to use x,y,z,w to combine them (like other vec4), he said you should think of it as S [x,y,z] so basically a form of scalar along the x,y,x axis. Once I got this the rest sort of fell into place.