Pd-list July 2007

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148 participants
241 discussions

GEM: GLSL effects
by Cypod 15 Jul '07

15 Jul '07

I found a webpage that has published some code for creating effects with glsl, and I am trying to get them to work in pd http://dem.ocracy.org/libero/photobooth/ There are some other cool effects, eventually it could be a cool patch idea. Do yo need a vert? I am trying to plug this into the deform_texture.pd patch. So far this is the frag that I have worked out so far: uniform sampler2D texture; void main(void) { vec2 texCoord = (gl_TexCoord[0].st); // [0.0 ,1.0] x [0.0, 1.0] vec2 normCoord = 2.0 * texCoord - 1.0; // [-1.0 ,1.0] x [-1.0, 1.0] normCoordNew = Effect(normCoord) rNew, phiNew = Effect(r, phi) float r = length(normCoord); // to polar coords float phi = atan(normCoord.y, normCoord.x); // to polar coords r = pow(r, 1.0/1.8) * 0.8 normCoord.x = r * cos(phi); normCoord.y = r * sin(phi); texCoord = normCoord / 2.0 + 0.5; // [0.0 ,1.0] x [0.0, 1.0] color = texture2D(sampler, texCoord); gl_FragColor = color; } -- B~ www.cypod.co.nr

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[PD-announce] congrès PureData Convention '07: Inscrivez-vous! | Registration!
by PD Convention '07 15 Jul '07

15 Jul '07

++ ENGLISH VERSION BELOW ++ Vous pouvez maintenant vous inscrire au L'Œuvre ouverte | Congrès PureData '07 Visitez le site du congrès : www.pure-data.ca L'Œuvre ouverte | Congrès PureData '07 du mardi 21 au dimanche 26 août 2007 L'Œuvre ouverte | Congrès PureData 07 rassemblera des organisations, des artistes, des développeurs et des théoriciens canadiens et internationaux qui portent leur regard sur les outils à code source ouvert pour les artistes. Ce deuxième congrès international, qui aura lieu du 21 au 26 août 2007, présentera une riche programmation, constituée d'expositions, de performances, de conférences et d'ateliers. Sous le thème de l'Œuvre ouverte, il mettra en perspective l'étendue des disciplines artistiques qui utilisent le logiciel libre et plus particulièrement le logiciel PureData. Il servira de contexte théorique et artistique à la compréhension des arts médiatiques qui investissent les aspects esthétiques et politiques de la culture du logiciel libre. LIEUX_1. Les principales activités se dérouleront à la Société des arts technologiques [SAT] où l'on retrouvera l'exposition centrale, des performances, des tables rondes et des événements collectifs. LIEUX_2. L'Université McGill sera aussi l'hôte de conférences et de performances; à l'Université Concordia, l'édifice EV accueillera une installation interactive, une commande d'œuvre de Vidéographe. LIEUX_3. Des ateliers se dérouleront au centre Oboro et au Studio XX. Le programme officiel et complet sera disponible au cours du mois de juillet. L'Œuvre ouverte | congrès PureData 07 est une initiative du collectif du Congrès PureData, composé de Andrew Brouse, Alexandre Castonguay, Marc Fournel et Darsha Hewitt. Les partenaires et collaborateurs du congrès sont : Artengine + Oboro + Plymouth University (UK) + La Société des arts technologiques [SAT] + Studio XX + l'Université catholique de Louvain (BRX) + l'Université Concordia + l'Université McGill + l'Université d'Ottawa + Vidéographe + PD MTL. Le collectif du Congrès PureData tient à remercier le Conseil des arts du Canada, la Fondation Daniel Langlois et le Conseil des arts et des lettres du Québec pour leur soutien financier. Le collectif tient aussi à remiercer Ombú et Nokami pour la réalisation du site web. +++++English Version++++ Online registration for is now open for l'Œuvre ouverte | PureData Convention '07 Visit the convention website: www.pure-data.ca L'Œuvre ouverte | PureData Convention 07 Tuesday August 21st to Sunday August 26th, 2007 L'Œuvre ouverte | PureData Convention '07 brings together artists, developers and theoreticians who develop, use and reflect on PureData. This 2nd International Convention takes place from the 21st to the 26th of August 2007 and presents a rich program of exhibitions, performances, conferences and workshops. The convention strives to reflect on the aesthetics and politics of free Open Source software culture by focusing on the development, artistic uses and critical writing about PureData. It provides a theoretical context for the understanding of media art practices that engage in the aesthetics and politics of Free Open Source Software Culture. SITE_1. The principal activities including the main exhibition, performances, round table discussions and collaborative events will take place at the SAT. SITE_2. Conferences and other performances will take place at The Tanna Schulich Concert hall at McGill University while the EV Building at Concordia will house an interactive installation presented by Vidéographe. SITE_3. Workshops will take place at Oboro and at Studio XX. The complete and official program will be available later this month. L'Œuvre ouverte | PureData Convention 07 is an initiative of the PureData Convention Collective: Andrew Brouse, Alexandre Castonguay, Marc Fournel et Darsha Hewitt. The partners and collaborators of L'Œuvre ouverte | PureData Convention '07 are: Artengine + Oboro + Plymouth University (UK) + The Society of Art and Technology [SAT] + Studio XX + l'Université catholique de Louvain (BRX) + Concordia University + McGill University + Université of Ottawa + Vidéographe + PD MTL. The PureData Convention Collective gratefully acknowledges the financial support of the Canada Council for the Arts, the Daniel Langlois Foundation and the Conseil des arts et des lettres du Québec. The collective would also like to thank Ombú productions and Nokami for their support with the pure-data.ca website. _______________________________________________ PD-announce mailing list PD-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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R: PD-list Digest, Vol 28, Issue 65
by alfonso.santimone＠tin.it 14 Jul '07

14 Jul '07

azz..le ho inviate anche io ieri....cn anche un breve testo per gyorgy ludwig van gauss lowe ----Messaggio originale---- Da: pd-list- request(a)iem.at Data: 13-lug-2007 11.56 PM A: <pd-list(a)iem.at> Ogg: PD- list Digest, Vol 28, Issue 65 Send PD-list mailing list submissions to pd-list(a)iem.at To subscribe or unsubscribe via the World Wide Web, visit http://lists.puredata.info/listinfo/pd-list or, via email, send a message with subject or body 'help' to pd-list-request(a)iem.at You can reach the person managing the list at pd-list-owner(a)iem.at When replying, please edit your Subject line so it is more specific than "Re: Contents of PD-list digest..." Today's Topics: 1. Re: Pd- 0.39.2-extended-rc4 released on ubuntu (Miller Puckette) 2. Clicking noise since installation of Py/Pyext (Chris) 3. Re: Pd-0.39.2- extended-rc4 released on ubuntu (Mathieu Bouchard) 4. changing volume depending on frequency (Marko Timlin) 5. Re: changing volume depending on frequency (Andy Farnell) 6. Re: Clicking noise since installation of Py/Pyext (Andy Farnell) 7. Re: Clicking noise since installation of Py/Pyext (Chris) 8. New sensor project video (Spencer Russell) 9. Re: Pd-0.39.2-extended-rc4 released on ubuntu (Mathieu Bouchard) 10. Re: console focus after soundfiler load (Patrice Colet) _______________________________________________ PD-list mailing list PD-list(a)iem.at to manage your subscription (including un- subscription) see http://lists.puredata.info/listinfo/pd-list

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console focus after soundfiler load
by Kevin McCoy 14 Jul '07

14 Jul '07

Hi all, I would like to make a small request for pd for linux, but I wanted to post to the list before putting it on the tracker as a bug or feature request - could it be made so that when you load a sample with soundfiler, the console window does not get the focus after loading the file? This is no small irritation when loading multiple samples, and if one is not running in verbose mode, there's not even any useful information provided by the console. I am running ubuntu studio 7.04 with gnome/fluxbox. I know that the only message that comes back from a soundfiler load in verbose is that it was successful. Other messages, however, don't cause the console to get focus - they simply appear in the terminal in the background. Is there a workaround for this, or can it be addressed in the code? Was it done on purpose, perhaps? I have tested this with 39-2 extended and Miller's 0.40-2, but perhaps the request could apply for all versions of pd on linux. This never seemed to be an issue on OS X when I was using that. I personally don't think the console should ever be forced to the front of the screen after startup, but should rather run quietly in the background, available for reference when it is called upon. Thanks! k

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New sensor project video
by Spencer Russell 14 Jul '07

14 Jul '07

Howdy, I just posted a new video showing the current status of some distance sensors I've been working on this summer. Now that most of the technical glitches are dealt with, I just need to mount them up on my bass to start the live processing. http://www.columbia.edu/~sfr2105 let me know what you think... -spencer

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GEM: multitexturing in GEM
by vade 14 Jul '07

14 Jul '07

Hello i am looking for an example patch, or how to for multitexturing. Im trying to port some GLSL shaders that implement mixers over to GEM. How do I get gl_TextureMatrix[0] and [1], etc so to speak onto a rect? thanks, forgive me if this is obvious, but I looked around and did not see any example code. v a d e // www.vade.info abstrakt.vade.info

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Re: [PD] Pd-0.39.2-extended-rc4 released on ubuntu
by Mathieu Bouchard 14 Jul '07

14 Jul '07

On Fri, 13 Jul 2007, pd-list-request(a)iem.at wrote: > Pd does a "seteuid(setuid())" to un-get root priveliges if run as > setuid, after its priority gets promoted, so that it runs as the > user who started it. But there are apparently loopholes, as Mathieu > has found. what you mean is that your pd does a seteuid(getuid()). What you need to know is that my pd does a setuid(getuid()) instead. You can find the relevant information by consulting: man setuid _ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard - tél:+1.514.383.3801, Montréal QC Canada

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Pd-0.39.2-extended-rc4 released on ubuntu
by Mathieu Bouchard 14 Jul '07

14 Jul '07

On Fri, 13 Jul 2007, Frank Barknecht wrote: > Hans-Christoph Steiner hat gesagt: // Hans-Christoph Steiner wrote: > >> This is only possible if you are running Pd as root, which is general >> is not a good idea. If Pd is running as a different user, then you >> wouldn't be able to gain root access. > > Matju can comment better, but AFAIR in my tests his external also > worked with a setuid root Pd started as a normal user. My mail was about specifically setuid root Pd started as a normal user, and then re-gaining root priviledges after the pd startup procedure abandons them. I don't know how anyone can understand anything else from that mail. _ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard - tél:+1.514.383.3801, Montréal QC Canada

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Re: [PD] Pd-0.39.2-extended-rc4 released on ubuntu
by Mathieu Bouchard 13 Jul '07

13 Jul '07

On Fri, 13 Jul 2007, Frank Barknecht wrote: > Regarding patco's problem with realtime mode: "chmod +s" is not a good > idea as it's a potentially big security hole opening up your system for > all kind of local exploits. Frankly, on the average machine, almost all important files are in the same user account that runs pd. In any pd file it's easy to append a line like this: #X savetofile .pdsettings /home/matju; Which doesn't appear in a patch and causes pd to copy that patch over my .pdsettings and works even when using -noloadbang. Have fun. (PS: I don't really have a .pdsettings, I'm just simulating something that could hurt...) _ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard - tél:+1.514.383.3801, Montréal QC Canada

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Clicking noise since installation of Py/Pyext
by Chris 13 Jul '07

13 Jul '07

Hi, I am using PD (0.40.2-2) under Linux (Ubuntu 7.04). Some days ago I compiled and installed Thomas Grill's Flext and Pyext (Which still runs kind of buggy) version 0.2.0, I also tried the CVS-version later. I also needed some header and other devel-files, like numeric, numarray,, stk and sndobj. I used my distribution' packages for that. Since that day I always hear some clicking noise in the simplest patches, like a simple osc~ -> dac~ and always get 'A/D/A sync' and 'DAC blocked' errors. I get those errors even when there's no patch open! I tried this with alsa and jack (with alsa and freebob-backends) but always the same noise. I tried not to load the Pyext-External, but this has no effect either. I don't think that the problem is alsa or jack, playing mp3s with xmms is no problem. I have no idea where else I could look for errors. I know these are very few information :( Btw. Are there Ubuntu/Debian Packages anywhere where pyext is included? Thanks for any help.

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Pd-list July 2007