A heightmap is grayscale with a range from 0-255, but when loaded with the "loadterrain" command is converted to values between 0-1. That is why if you are saving a terrain out as a heightmap you need to multiply by 255 as Jeppe expained.
When you have loaded the terrain then use the "scaleentity" command to set the scale of the terrain. The Y value determines how high the hills and how low the valleys.
I hope that helps somewhat.
When you have loaded the terrain then use the "scaleentity" command to set the scale of the terrain. The Y value determines how high the hills and how low the valleys.
I hope that helps somewhat.