Some edges on 3D shapes do not always respond to lighting.
https://kindeyegames.itch.io/construct-3-rotate-3d-behavior/devlog/1026152/add-s...
The problem still hasn't gone away :(
https://kindeyegames.itch.io/construct-3-rotate-3d-behavior/devlog/1026868/yet-a...
thank you very much
you are welcome