Eric Lengyel's C4 engine takes this approach.. it's a bit interesting https://c4engine.com/wiki/index.php?title=Quick_Tour https://c4engine.com/wiki/index.php?

Eric Lengyel's C4 engine takes this approach.. it's a bit interesting https://c4engine.com/wiki/index.php?title=Quick_Tour https://c4engine.com/wiki/index.php?title=Quick_Tour