As the question title states, I am trying to make a gradual slope in Unity Terrain. I want it to be many 100's metres long for a golf course and it will slope in a few directions hopefully in places.
How could this be done with Unity Terrain?
Have you tried smoothing your relief out?
You can also set the hardness of your terrain sculpting bush to have a smoother looking, more gradual slope instead of a harsh bump on your terrain. Try also playing with the opacity of it so you can gradually build up the terrain.
I know this is a few years old. But for anyone new looking for the solution.
The unity registry has Terrain Tools which lets you installed additional brushes and tools to the existing Unity Terrain.
Here's a link to the documentation: https://docs.unity3d.com/Packages/[email protected]/manual/effects-slope-flatten.html