Pytho/mel Animation With Fft (fast Fourier Transform)

[ant0nio]

Hi, I'm a student of the Faculty of Mathematical, Phisics and Naturals Sciences in Tor Vergata University ( Rome ).
I want to do a maya animation that takes input parameters from the FFT of an audiotrack.
Can I associate moviment or other parameters to amplitude and phases of FFT using Pithon/Mel
How can I do?

Thank you in advance

Antonio

[joojaa]

Yes you can, either make a node that outputs the value you want to convert itr to, and input time as what to sample. Or make a anim curve of the data in one go for the entire animation.

[daniel-faust]

Creating anim curves would allow you to split your problem into 2 smaller ones: 1) the generation of the curves 2) the import process.

The import process could then be done entirely in mel, and ti shouldn't be hard to find a tool or sample code which just generates the animcurves.

Else, if you would create a node, you'd need to learn a good deal about the Maya API which can be pretty time consuming. I'd say avoid that hassle if you can, because you might bump into a few bad surprises which could swallow easily a couple of weeks of your time.

[joojaa]

QUOTE(Daniel_Faus @ 09/13/07, 02:17 PM) [snapback]273232[/snapback]
Else, if you would create a node, you'd need to learn a good deal about the Maya API which can be pretty time consuming. I'd say avoid that hassle if you can, because you might bump into a few bad surprises which could swallow easily a couple of weeks of your time.

Unless you are truly familiar with how push and pull graphs work. And familliar quite deeply 3d in general (like if you have ever done a vrml script nodea and NEVER used direct references to set attributes situation is much like this)

[ant0nio]

I'm trying to use python for my aid, and I've made the FFT, but I'veused numpy that seems not installable under the "maya python".. How can I do? Is the python way harder and less fexible than the C++ API?

Can somebody help me?
If needed I can explain better the aid of my thesis

[joojaa]

Ok maya python is NOT equal to a normal python install (in general python win installers assume you onlyy ever have 1 system level install and thats not always true, in fact it hasnt been true to me for about 5 years now), and as such it does not show up for a installer, so you need to manually do the entire install form files. Either fid the bootstrap or manually place the files under maya pythons library folders. OR configure yor python versions to share the same directories.

read:

http://www-cgi.uni-regensburg.de/WWW\_Serve...Python/inst.pdf

installing numpy was not very hard tough. Whant i did was installed numpy by installer to my normal python 2.4 and pointed pythons globals to the numpy folders using evn vars.

[arronlee]

Hi, Joojaa.
I wonder whether the pdf conversion toolkit I am testing these days can help with that? I hope it helps. Good luck.

Best regards,
Pan