[Pulcinella]

See also this video https://youtu.be/K7gWmdgXPgk to see how the snes mode 7 (though really you also need HDMA) perspective transformation worked.

The whole series of videos is amazing.

[lostgame]

I really appreciate the simple explanation of how raster effects worked in your original article.

It's something I always feel like I understood, but couldn't necessarily explain to someone else if I had to.