[rozab]

Here is the Panini projection paper, it's a good read[0].

Unreal Engine has support for it as a post-processing filter[1], but I don't know of any games using it.

[0]: http://tksharpless.net/vedutismo/Pannini/panini.pdf [1]: https://dev.epicgames.com/documentation/en-us/unreal-engine/...