Unity Terrain - Maximum Height?

Unity Engine
1

In the editor on the options tab for terrain there is Terrain Height?
How can I get this by code?

2

I can only see a terrain height for the “paint height” brush tool… that’s not something that is stored in the terrain output.

If you want to access the terrain data you use

3

facepalm, indeed on the options tab on the top right in the editor you can see the exposed terrain settings.
The setting I want is not in terrainData and I would like to know how to access terrain Height

4

TerrainData.heightMapHeight should be the overall height. The normalised heights are access by TerrainData.GetHeights(…)

5

Yep. More specifically:

var terrain = GetComponent<Terrain>();
int nx = terrain.terrainData.heightmapWidth;
int ny = terrain.terrainData.heightmapHeight;

float[,] htmap = terrain.terrainData.GetHeights(0, 0, nx, ny);
float scale = terrain.terrainData.heightmapScale.y;

for (int i = 0; i < nx; i++)
    for (int j = 0; j < ny; j++)
        htmap[i, j] *= scale;

If you are changing the terrain heights don’t forget to renormalize your height data to between 0 and 1.

6

terrainData.size.y gives that height value