This past week I've been experimenting with the Python exporter for Blender. On the whole (for static objects) it seems to work well but from what I can figure out, the UVmap settings aren't stored for when you return to Blender on restart. Also (and my greatest headache) I'm not sure if it is a Blender problem, an engine problem, or a python problem, but am having serious concerns about the ability in making 2-sided transparent textures (ie, glass, leaves). I've developed a workaround but keeps crashing my system. Know anything about this?