I recently made a fairly simple shader heavily inspired by the one used for characters in The Legend of Zelda: The Wind Waker. I’ve got all my info on how it worked on the GameCube from this amazing video
Check out the source at bevy_wind_waker_shader
Here are some screenshots :)
Sphere:

Light throughout day:
Daylight

Night time



Here is an alternative Piped link(s):
amazing video
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I’m open-source; check me out at GitHub.