Set Terrain Normals

Questions & Answers
1

Hi,

I’m making a grid of terrains. I make sure that the vertexes of neighbouring terrains match, so there are no gaps.
There is one problem though, the normals of the vertexes don’t match, so there is a very noticeable line in the shading. Is there any way to edit the vertex normals of a terrain?

Thanks !
-P

2

In this answer one commenter said that you have to call “Terrain.Flush()” after you set the neighbours to fix the terrain normals.

3

Make sure that you are setting your neighbors correctly. The top neighbor is in the positive z direction and the left neighbor is in the negative x direction.

Details here: How do I use Terrain.SetNeighbors() to remove level of detail seams between multiple terrains? - Questions & Answers - Unity Discussions