The content discusses the importance of understanding the theory behind isometric projection in game development. It covers the basics of isometric projection and how it is used in retro games like Ultima VIII and SimCity 2000. The article explains orthographic and perspective projections before delving into isometric projection. Surprisingly, it reveals that many retro isometric games are not true 3D games and rely on 2D tiles positioned to look 3D. The article also touches on the use of “pseudo” isometric angles for a perfect 2:1 pixel ratio. The author then demonstrates how to code a simple isometric map of tiles using JavaScript and P5js.
https://pikuma.com/blog/isometric-projection-in-games