Title says it all, I would like to use designer to process some terrain height map (they usually comes in non-power-of-2 size, such as 1081x1081), and game engine like Unreal also expect the map to be non-power-of-2 (such as 1009x1009).
So I attempts to procedurally preprocess these height map then resize them to Unreal required size: I like the fact SD is very aware of bit depth; but unfortunately, it doesn't seem to support such resolutions.
Is SD ill-equipped for this use case?
As far as I know there is not but you can just add empty pixels up to power of 2 , do what you need to and then crop back in Photoshop.
I ended up writing my own tools to deal with large landscapes but if that's not something you fancy, you're best off doing as gnoop suggests