While making some new skins for the 109E, I discovered that the bump map does not display properly on the wings.
![](http://i241.photobucket.com/albums/ff252/DropkickYankees/Bumpmap1_zps09466b2b.png~original)
Here you can see that the lower right wing has the opposite the left: detail is raised where it should be recessed. Left wing displays correctly.
![](http://i241.photobucket.com/albums/ff252/DropkickYankees/Bumpmap2_zps0e43ee93.png~original)
On the left upper wing the panel lines are highlighted opposite of the light source in the left/right axis. Highlights are correct front to back.