Gordon, J-S, Sergey,
My apologies about the licensing, I could have sworn FFTW was LGPL! I should have double checked that. But yes I agree that this is a problem, one which I would like to avoid as it clearly limits it's usage. In light of this I think what I shall do is find another library and change the back end code. It's not really a huge change, but i'll get on it as soon as I can. Obviously the speed differance is a bit of a issue, I'll do a bit of investigation into FFT libraries and see what can be done. I think for many applications a precomputed ocean animation would probably be ok, but it would be nice to have dynamic effects. Really though I think if that is the direction it's heading I will have to look at other more effecient techniques for generating the ocean geometry. Generating 64x64 grids of FFTs 25-30 times a second takes up a quite a signficant percentage of CPU time and I suspect this overhead would put people off using it in a real-time context when the alternatives are much quicker. Sergey - thanks Im checking out Kiss FFT at the moment. So don't panic I'll get on it! :) Regards, Kim. -----Original Message----- From: [email protected] on behalf of Jean-Sébastien Guay Sent: Wed 06/05/2009 15:26 To: OpenSceneGraph Users Subject: Re: [osg-users] osgOcean release Hi Gordon, > Sadly for us the fact it has GPL dependencies makes it not something we > could use at this time Same for us which is why I'm trying to help find a solution for that :-) Sorry Kim I hadn't thought of looking into FFTW's licensing terms... J-S -- ______________________________________________________ Jean-Sebastien Guay [email protected] http://www.cm-labs.com/ http://whitestar02.webhop.org/ _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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