Of course you can but I think author’s point is to actually test/evaluate maximum performance of true software rendering on modern machines, and this is fine and refreshing exercise, even with filtering.

This actually what I have also returned to in my latest demoscene demo: https://www.pouet.net/prod.php?which=106969

It’s 100% software rendering on CPU just multithreaded. But no metal/direct3d just framebuffer and rest is yours routines… and I actually added bilinear filtering…

Still fun project to do and remind yourself about fundamental algorithms behind elementary 3D graphics