modEmMaik, just to check if I understood it right...
You used the bump_ref.wings - in orthographic view - to extract the bump map you used in Gimp. Is that right?!
If so, a couple of years ago, the user linkoboy changed a shader of Wings3D v1.5.4 to allow him to extract normal maps. I did a test too. You can check it here.
Thinking about this way to capture normal map - for a situation like that, nowadays the AO can be done in the same way. It's not a big deal, but a trick that can be useful sometimes.
You used the bump_ref.wings - in orthographic view - to extract the bump map you used in Gimp. Is that right?!
If so, a couple of years ago, the user linkoboy changed a shader of Wings3D v1.5.4 to allow him to extract normal maps. I did a test too. You can check it here.
Thinking about this way to capture normal map - for a situation like that, nowadays the AO can be done in the same way. It's not a big deal, but a trick that can be useful sometimes.