Filling polygons has never been the hard part of realtime games. It's all the work that gets you to be able to fill just the polygons you need in the way you wa

Filling polygons has never been the hard part of realtime games. It's all the work that gets you to be able to fill just the polygons you need in the way you want them. It is not a big ask to have a scrolling UI. Look at motif from 80s.