How do i make terrain deep enough to create a river?

Questions & Answers
1

Dear Unity Moderators,
I would like to inform you that I am currently working on making a horror game, including a river in the middle of the terrain. I have already made part of it. There is one problem. I made the first terrain deep enough for the river, however, the second terrain will not go as deep as it needs to be. I don’t remember how I made the first terrain deep, but I need to make the second terrain and all terrain that has the river running through deep enough for it. Any advice and/or tips?

Sincerely, RandomUsage

2

90107-terrainsculpting.png
90107-terrainsculpting.png362×542 49.3 KB

3

Terrains can’t have negative heights. So you make the floor of the terrain equal to the lowest height anywhere in your game (the riverbed, in your case), and raise the height of everything else up accordingly.