While developing a game in jME3 RC2, I ran into a shortcoming of ImageBasedHeightMap after I created a JPEG in Windows Paint. When I load() the resulting heightmap, I got an UnsupportedOperationException at ImageBasedHeightMap.getHeightAtPostion() line 170, apparently because the BGR8 format is not supported.
I’ve worked around this by creating heightmaps using other tools, but I since Paint seems to be the default external editor for JPEGs in the Windows SDK, I wonder if it might be worth adding support for BGR8. Heck, with a little help I might be able to commit a fix myself.