Actually, it's frustrating. Someone had mentioned earlier about abstracting out your rendering layer from the underlying renderer. I've always had problems with this because underlying J3D layer relies on javax.vecmath alot. Plus, vecmath might be useful for non-rendering apps. Why reinvent the wheel? Also, writing interfaces that wrap these is both tedious and bad for performance.
There should be no legal issues, or J3D should use a free vector library, IMHO.
Free implementation of javax.vecmath
http://objectclub.esm.co.jp/vecmath/
Artur
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