This paper and the related technical documents explain how DOOM achieved real-time 3D rendering on 1993 hardware by:
The most famous "interesting paper" related to this topic is: DOOM.part08.rar
: Avoiding slow floating-point calculations, which was critical for the CPUs of that era. This paper and the related technical documents explain
However, given the context of DOOM and "interesting papers," you are likely looking for the landmark research on the and its revolutionary use of Binary Space Partitioning (BSP) . DOOM.part08.rar
: Optimizing how floors and ceilings were rendered to save processing power.