Yes, that is new. Obviously it makes a huge difference. Ac3d is no doubt the best way to make ac3d files at this point. Blender is open source, which is a major plus. But what we really need to make the modeling take off is a open source tool that is easy to use and fully supported by plib.
One disadvantage of ac3d files (using plib) is that it takes an incredible amount of CPU time to regenerate the normals. This is best seen when the trees are loaded. Converting the trees to another format results in much faster initialization of it.
Erik
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