For my mid-spec PC, it can do well with >120FPS all time (HD resolution). The development is challenging and costs me quite some time, but I really enjoy the result. I also feel good that my #retrodev knowledge somehow helps me in my non-retro project.

As it's instanced rendering, I have to do culling myself and I did it with Triangle Rasterization. As all background intances are binded to tiles, I only need to do rasterization once for everything.🧵

In my game, I use a virtual tile map to store the world matrix for all instances. When the viewport scrolls, the game only generates new areas on demand. This approach lets me dynamically switch algorithms based on the player's progress 🧵

On old game console, to deal with large scene, the game do it by shifting the viewport and updating only the tile map on viewport edge. With this trick, they can easily scroll in a big scene with limited memory and CPU power. 🧵

In case you haven't tried my game. Here is the link:
sunnychowtheguy.itch.io/song-of-moru...