Quote - ADP, I have a suggestion (I'll post this on the peanut gallery, as well, so it doesn't get lost):

If you look at my GeometryExporter class, you'll see that it doesn't do anything too complicated.

Grrr (to me). This was not meant as it sounds.

I did a last, simple test. I removed the normals from the C4D-Exporter output and let it render.  And I got the same result as with LuxPose.

If I look at LuxPose normals, I couldn't find some for the glass??? (don't beat me). 

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