Fine grained visibility determination (span, coverage buffers, etc) https://www.flipcode.com/harmless/issue01.htm
Tom Forsyth, How To Draw Ugly Lines Fast https://cohost.org/tomforsyth/post/648716-how-to-draw-ugly-l...
Ned Greene, Hierarchical Polygon Tiling with Coverage Masks https://www.cs.princeton.edu/courses/archive/spring01/cs598b...
This UC Davis lecture video explains rasterization rules really well: https://youtu.be/z3fWd7G3mrU