Argumented Path between A and B

I am getting out of ideas and frustrated really…I am working on an “AR navigator”.

As I managed to set up the destinations, their positions, camera and the AR stuff just fine, I finally hit the wall.

I have huge issues with indicating a path from A to B in AR (with arrows for example). Nothing seems to work for me and I seem to slowly lose the top of things…

Does anyone have an idea or could at least tell me where I could look for an answer? It feels like I searched half the internet for a decent cause for thought… Help would be greatly appreciated.

Thanks in advance! Have a nice day everybody!

EDIT: Actually I came up with a much easier explanation of my problem: How can I bind myself with an object in front of me visually in AR?

Wouldn’t drawing a line from main camera’s position to the virtual object’s position help in this?

Hey, Karthi and first of all thank you very much for replying!
It would indeed help but that would just cure the problem roughly. Since I wanted to bind A and B on a map (its kind of a navigator), how does the line realize to use the streets as a route and not go straight from A to B through houses for example?