Many of the comments here imply this article is about how to do parallax scrolling in general or think the article is suggesting Duke Nukem II was pioneering pa

Many of the comments here imply this article is about how to do parallax scrolling in general or think the article is suggesting Duke Nukem II was pioneering parallax scrolling. This is not what the article is about. This article is about how Duke Nukem II specifically implemented drawing so that it could actually achieve playable framerates on EGA video cards and slow ISA buses, which were too slow to do a naive implementation.