Martin,
We can imagine applications of multidimensional noise. I was thinking about a melodic line piloted by a one dimensional Perlin noise. Then a second could come and make some excursions in the second dimension. But the second will still able to "track" the first one, to come closer, to go away and then back close to the initial pattern. Also because the noise (chaos in fact) generated by libnoise is deterministic, one can also experiment with two patterns in advance (or delayed) respectively from one to another. These are just ideas, it is always easier to do it in "brainware" What I would like to do with coherent noise is to use it to mimic real life motion or processes (like music). After all it is what it was originally designed for. In other words, I would use it as a "control" rather than as a "signal" Once again, these are just thoughts. I hope they will get clearer in the future Renaud -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: 14 November 2006 18:17 To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [email protected] Subject: Re: RE: [PD] Pure coherent noise (Perlin noise) You can make coherent noise by adding filtered noise~ objects. See the attached patch. This is similar to one-dimensional Perln noise. Would two- or three- dimensional noise be useful in pd? Martin > > From: <[EMAIL PROTECTED]> > Date: 2006/11/14 Tue AM 10:11:25 EST > To: <[EMAIL PROTECTED]>, > <[email protected]> > Subject: RE: [PD] Pure coherent noise (Perlin noise) > > > > Thanks for your enthusiasm Chuck > > I was thinking about something like this. > The tutorial made by johannes m zmölnig > (http://iem.at/pd/externals-HOWTO/ ) seems explicit enough But I wanted to be > sure that it does not exist first. > I try to avoid reinventing the wheeel (although mine will be rounder > than what already exists ;-) > > I am just amazed that there is no (not yet?) such thing as Perlin noise in PD. > It could be useful to add some correlated variations of user input and be the > source of various effects. > I used to link to libnoise for some DemoGL applications (a framework > to develop OpenGL appications in C++ http://www.sd.nl/demogl/) If it sounds > as good as it looks there must be interesting things to do. > > I'll let you know > > Renaud > > > -----Original Message----- > From: Charles Henry [mailto:[EMAIL PROTECTED] > > Sent: 13 November 2006 18:05 > To: [EMAIL PROTECTED] > Subject: Re: [PD] Pure coherent noise (Perlin noise) > > Hey, Renaud, > If you've got libnoise, then you might as well build a pd external, which > is a kind of "wrapper" where you can supply arguments to your functions, and > include methods for changing the arguments in real time. > It's not hard, although the first one (external) usually is hard to > understand. See IOHannes' Howto build an external documentation first > off. Then, simply "rip off" pan~ and supply your own code to the > perform routine, change the name, include your library headers, change the > makefile to include your library, and you're off and running. To understand > more functionality of making a pd external, read through m_pd.h--all of the > Pd-specific functions you can use in an external are there for you. > There are also many "tiny" details you will need to learn to get just what > you want. Good luck, and feel free to ask any questions. > There was a previous post regarding Perlin noise, although I don't think it > was resolved. Search the Pd-list archives to find out more. > > Chuck > > > On 11/13/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > > > Hello, > > > > Do someone know if there is a class that generates coherent (Perlin) > > > noise in Pure Data? > > OK, I could build it myself by interpolating random numbers or > > linking > > > to libnoise but if it already exists... > > Thank you > > > > Renaud > > > > **** DISCLAIMER **** > > http://www.belgacom.be/maildisclaimer > > > > _______________________________________________ > > [email protected] mailing list > > UNSUBSCRIBE and account-management -> > > > http://lists.puredata.info/listinfo/pd-list > > > > **** DISCLAIMER **** > http://www.belgacom.be/maildisclaimer > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > **** DISCLAIMER **** http://www.belgacom.be/maildisclaimer _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
