Unity Terrain Texture Resolutions

Questions & Answers
1

Hello everyone,

Why is that in Unity the heightmaps are of width and height of power of 2 + 1 not powers of 2. Also, how does this correspond to alphamaps which are just powers of 2, i.e. if I am generating an alphamap and heightmap procedurally in a script, how do the mapped values correspond since they aren’t of equal dimensions?

2

If you are talking about the import heightmap feature its because its in RAW format which adds an extra pixel. So a 1024x1024 heightmap is 1025x1025 in RAW format.