A year and a half ago I released PixelCity for WegGL - cf. blog post.
I recently decided to add a few more modes and release the code on github.
Beside the original night mode variations, there is now a wireframe mode:
and day mode:
Shadows for the day mode are sort of working but needs some more work.
If you enjoy this piece you might also enjoy my other pieces at art.muth.org or similar animation done by others at www.arscalculanda.com.