Let’s say I’m making a game and want to have the scene look like it has a infinity plane or just really large world view in Unity.

One option is a Skybox, the other would be an ‘artificial’ horizon, drawn onto the screen and rendered so it looks like it goes off into infinity.

I understand that this is the art of illusion in video games but other than a Skybox does not appear to be covered by Unity.

For a quick calculation for distance to horizon…

The square root of the height in m / 0.06752 = km to horizon or viewing distance.

E.g.

2 m = 5.44 km to horizon

10,000 m (10km) = 384.8 km to horizon

So how do you do this in computer graphics?