I've been trying to import a 16-bit (also tested 32-bit, same thing) heightmap into Photoshop, but it always stays in 8-bit mode. I've tried several file formats, nothing seems to work. Can't find any settings related to this inside Photoshop and Google doesn't seem to know anything about this either... Is this a problem…
TIFF, TGA, BMP, PNG, RAW... nothing seems to work. EDIT: I'm starting to think it's a problem with Terresculptor exporter. 16-bit images saved in Photoshop open just fine, but I can't open most of the files I export from Terresculptor or they open in 8-bit mode.