Elevation values, interpreted along the terrain-space up-vector.
64-bit ARGB color-key values that describe the texture of the terrain surface.
64-bit material tokens that describe the material of the terrain surface.
Elevation values, interpreted along the terrain-space surface normal vector.
Sample coverage values.
The heightmap sample layer values are premultiplied with the coverage amount. This must be taken into account when manually creating heightmap sample data (for example by using the HeightmapRegion.Modulate) method.