okay i want to make a river in my map… at the edges i have a canyon the river travels into and it turns at this point
i want to make it so you cant travel past a certain point to avoid seeing the edge of the map and giving the illusion the river continues.
here is a except from my heightmap (nowhere near done).Tthe redline is where i dont want the player to be able to travel past, underwater or not
gray line is the actual edge of the map. I have plenty of mapping exp though there is some features i probibly should use more and dont… im NO expert, its a hobby! I just like making pretty maps for my friends/clans.

and feel free to slap me if hte answer should be obvious to me…
