OK now try to do this in 3D with arbitrary projections and interactivity! And guess what, you'd create a rendering engine :) My earlier reply has a link to how

OK now try to do this in 3D with arbitrary projections and interactivity! And guess what, you'd create a rendering engine :) My earlier reply has a link to how GPUs actually push pixels to the screen. There are also some excellent blog posts on how line rendering is done: https://almarklein.org/triangletricks.html https://almarklein.org/triangletricks.html https://almarklein.org/line_rendering.html https://almarklein.org/line_rendering.html