Wonderful. Did you simulate through weird bitplains of VGA?

I found them hard to get my head round, still do.

Excellent question. This is more a modern chunky pixel framebuffer, not planar.

The spirit of the project, however, was to emulate the tricks that bitplanes made famous. The plasma and flag effects, for example, don't move any pixels; they just cycle the color palette's offset against a static pattern, which is a direct software simulation of that classic Amiga hardware hack.