My first project with Amaans FFT nodes is going to be boat wakes: http://upload.wikimedia.org/wikipedia/commons/thumb/c/c0/Fjord.surface.wave.boat.jpeg/1024px-Fjord.surface.wave.boat.jpeg I was planning to develop it during the weekend but I didn't have time, but I will start on it today.
/Jens On Mon, Apr 29, 2013 at 12:24 AM, Andy Moorer <[email protected]> wrote: > I got this book at siggraph, it's now in digital form. > http://www.dspguide.com/ch24/6.htm > > Very helpful and idea-provoking. :) > > On Apr 28, 2013, at 12:34 PM, Amaan Akram <[email protected]> wrote: > > Some practical applications > > Jos Stam's classic fluid dynamics paper that uses fourier transforms > > http://www.dgp.toronto.edu/people/stam/reality/Research/pdf/jgt01.pdf > > FFTs applied to images > http://www.cs.unm.edu/~brayer/vision/fourier.html > > People create noise textures in FFTs, or analyze noise via FFTs > > There's also the classic spectrum visualization that is also dependent on > FFTs > > Jens Lindgren has a very interesting application of FFTs too. Jens? > > The classic 'low-cut' or high-pass filters in photoshop are also > applications of ffts > > > On 28 April 2013 15:59, olivier jeannel <[email protected]> wrote: > >> Helps a bit, thank's ;) >> >> Le 28/04/2013 14:47, Eric Turman a écrit : >> >> The internet is full of information...but its not always comprehensible. >> For example: wikipedia brings up as nearly a technical explanation (in a >> concise form ;P ) as the fftw.org >> >> FFT is used with periodic waveform interaction to tease out values >> --decompose into sine components. (I hope that I'm not mangling the meaning >> by trying to cram it down into one sentence) This link does a better job at >> explaining it: >> http://www.earlevel.com/main/2002/08/31/a-gentle-introduction-to-the-fft/ >> >> There are so many uses for FFT. It is a valuable (arguably critical) >> tool for all sorts of signal processing ranging from noise filtering to 3D >> tracking. But perhaps a more immediate and practical application of it in >> the 3D world is its facilitation of the deformation calculation of Amaan's >> aaocean polygonal surface http://www.amaanakram.com/?page_id=131 >> >> I hope this helps :) >> >> Cheers, >> -=Eric >> >> >> > > > -- > 3D Artist/TD @ The Mill, London > http://www.amaanakram.com > > -- Jens Lindgren -------------------------- Lead Technical Director Magoo 3D Studios <http://www.magoo3dstudios.com/>
