Okay, So basically, I find the most greatest, perfect way to make the best roads and intersections in existence, but to my utter dismay, its a unity plugin. So is there a way to use that plugin with unreal engine?
The plugin is road architect.
I seriously doubt you could use a unity plugin with unreal since they are different programs and use different coding standards. Unreal uses c++ unity uses c# they are similar but still different not to mention the differences in the base engine source code
There no way, Unity don’t expose there C++ APIs, all plugins… or rether packages are coded in C# which UE4 don’t use at all (except build scripts which does not give much). Even if you would make wrapper somehow phylosophy diffrences between the engine would make that difficult, you practicly need to emulate Unity behavior in UE4 to make it work which is too much of a hassle.
But if specific plugin use some external library which can be used in C++ you can try to make that library work in UE4 directly without the Unity portion of it. In that case remember to check licence compatibility, if you can use that library legaly with UE4 at all and if it’s not GPL or CC which UE4 EULA prohibits to use with UE4
I think I saw something like that in the Unreal Marketplace, where you lay down spline paths and it builds roads along it.