Don't be sorry, and have fun with SunFlow, alone or combined with Sweet Home 3D.
I just wanted to insist on the fact that it's not reasonable to spend more time on a library that is not maintained, moreover if there are a few bugs in it. By the way, SunFlow doesn't use Java3D at all, and the biggest part of PhotoRenderer class consist of adapting Java3D data to SunFlow data.
I know the illum 0 MTL parameter works, since it's taken it into account in SunFlow parametrization. It's just you might be the first user to try it!
As you (almost) noticed in the code, the fact that a material uses illum 0 model is stored in lightingEnable property, set in OBJLoader class and read in PhotoRenderer class. But OBJLoader class doesn't read Ke values because I don't see it in MTL specifications (but maybe they are not up to date).
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Emmanuel Puybaret, Sweet Home 3D creator
