Pd-list October 2013

pd-list@lists.iem.at

102 participants
122 discussions

pix_imageInPlace path wildcards
by Rosenstock, Joshua 29 Oct '13

29 Oct '13

Hello folks. I'm using a pix_imageInPlace object and trying to load a sequence of files. My files are named pic01.tif through pic12.tif. If I try to do [preload pic0*.tif 12] I get an error "Unable to find filename pic10.tif." If I try [preload pic*.tif 12] I get the error as unable to find pic0.tif. Obviously there's something wrong with my use of the wildcard * and 0s. How is it supposed to work? When I do [preload pic0*.tif 9] it works fine but only loads the 1st 9 images! How can I load more than 9 frames?! Thanks for your help. -Josh

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pow~ question
by peiman khosravi 28 Oct '13

28 Oct '13

According to the help patch, the argument of pow~ should initiate the right inlet, but it doesn't seem to work. (Please see the attached patch.) Best, Peiman *www.peimankhosravi.co.uk || RSS Feed<http://peimankhosravi.co.uk/miscposts.rss> || Concert News <http://spectralkimia.wordpress.com/>*

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Re: [PD] Pd-l2ork running on OSX
by Dan Wilcox 28 Oct '13

28 Oct '13

Ok. Just playing around a little and noticed: * there are 2 "Preferences" menu options in the Pd menu, the first works and is a folder with further options while the second "Preferences..." doesn't do anything. * the Media menu has a couple empty sections with remaining separators where the Audio & Midi settings options used to be * the put menu is empty when the main pd window is active, while Pd-extended simply greys out the menu options. The Put menu is then populated after selecting a canvas window. * the Search Browser works and is noticeably faster than the last time I tried it, but the search result links don't work for me. Navigating with links on the Home page do work. * I'm not a fan of the separate console window .. yet another window floating around, but that's not a huge deal * dosen't have the nice icon that pd-extended has :D also, pd-lork should consider using something similar to the nice About patch in Pd-extended. Oh, there are so many improvements in pd-lork! So nice. I hope most if not all of these make their way into vanilla. The gui performance is much better, although I like the Pd-extended main console window better. The patch cords are obviously nicer, although I like the straight lines in Pd-extended better with anti-aliasing off, however that's just a niggle. On Oct 25, 2013, at 6:00 AM, pd-list-request(a)iem.at wrote: > From: Jonathan Wilkes <jancsika(a)yahoo.com> > Subject: [PD] Pd-l2ork running on OSX (was: Re: New Blankets names Jonathan Wilkes "Artist in Transit Fellow") > Date: October 25, 2013 at 12:02:15 AM EDT > To: "pd-list(a)iem.at" <pd-list(a)iem.at> > > > Apropos: > Here's a first attempt at getting Pd-l2ork up and running on OSX: > > https://jwilkes.nfshost.com/Pd-l2ork.app.zip -------- Dan Wilcox @danomatika danomatika.com robotcowboy.com

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covert sensor data to midi
by Sofia Paraskeva 28 Oct '13

28 Oct '13

Dear list, I have a patch that receives data from wireless sensor (FSR) via xbee USB serial port. I want to convert the raw data to MIDI and i don't know how to do this. In my understanding converting to MIDI means scaling the raw sensor values to to a range of 0-126 This is going to be for a percussion sound, so how hard the sensor is pressed will determine for example how loud it is heard. I've read some things online and people talk about using a hardware device to convert to MIDI. Can I do this without a hardware device? Thank you, Sofia

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Re: [PD] Building externals on OSX
by Dan Wilcox 28 Oct '13

28 Oct '13

On Oct 22, 2013, at 1:07 PM, pd-list-request(a)iem.at wrote: > From: Jonathan Wilkes <jancsika(a)yahoo.com> > Subject: Re: [PD] Building externals on OSX > Date: October 22, 2013 1:14:41 PM EDT > To: pd-list(a)iem.at > > On 10/21/2013 09:38 PM, Dan Wilcox wrote: >> Errr. That's not so easy. You need the 10.5 SDK which you can only get with a *really* old version of Xcode which you probably can't install on anything newer than OSX 10.6. It's possible to put older SDK's themselves into the "right place" but, for something as old as the 10.5 SDK, it may not even work anymore. The only reliabel way to use an old machine with 10.5 or 10.6 and an old version of Xcode, probably Xcode 3.something. >> >> IMHO, at this point, it's best to drop support for PPC for new versions of pd. The *vast vast vast* majority of OSX users have moved on at this point. > > Just to make sure I understand: if someone has an old PPC Mac, they cannot > run stuff compiled for i386 or x86_64. There is no compatibility-mode or anything > they can use to run the software. Is this correct? Yes. It's a different instruction set and Rosetta, the PCC compatibility layer, won't run an OSX 10.7+. > Also, do you have any references for the claim that the vast majority of OSX > users have moved away from PPC? http://update.omnigroup.com/ (Hardware / CPU type): Intel 97.8% PPC 2.2% https://www.adium.im/sparkle/ (CPU type): Intel 97.83% PPC 2.71% > I find Jobs' claim that Apple doesn't ship > junk to generally be true, and combined with their development model the > unfortunate result would seem to be that poor people still using their once > sleek and sexy devices are ignored along with their now ugly, unprofitable > devices. Well, those "sleek and sexy" PPC devices were last made & sold in 2005, so it's not a surprise the vast majority of people using OSX have Intel machines mainly because software developers (& the OS) have moved on to 32 bit and now 64 bit intel years ago. Your political bias notwithstanding (I say use what works for you), I have a 4 year old Apple laptop that still does everything I need with the latest version of OSX and I plan to upgrade to OSX Mavericks when it comes out. That's pretty good, as I had a job when I bought it and I am currently an unemployed artist working on his thesis right now, so it's good this "sleek and sexy device" is not yet an "ugly, unprofitable" one. As with anything, not everyone buys the newest one every iteration and I can say, without any hardware issues whatsoever so far, I got what I paid for. In any case, I've long thought of helping with the OSX compatibility for Pd (updating GEM to Cocoa/64 bit for instance) but I honestly don't have the time or support right now. Maybe next spring I can do a "reverse kickstarter"? -------- Dan Wilcox @danomatika danomatika.com robotcowboy.com

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pd-extended in raspbian repo's
by Julian Brooks 28 Oct '13

28 Oct '13

Hey all, Last week I advised some pd-rpi beginners to d/l PdE from the raspbian repo's but it seems to have disappeared (it was there when I advised them). Anyone know what the current status of PdE on the RPi is?

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glsl and pmpd error
by Marco Donnarumma 27 Oct '13

27 Oct '13

Hey all, I'm successfully using [pix_shader] glsl stuff with geos and images, but when I try to plug it to a pmpd patch Pd freezes and crashes with this error: Error in `pdextended': malloc(): corrupted unsorted chunks 2: 0x0a4c1740 The pmpd system is not too big, just about 2000 particles. any hint? thank you! -- Marco Donnarumma New Media + Sonic Arts Practitioner, Performer, Teacher, Director. Embodied Audio-Visual Interaction Research Team. Department of Computing, Goldsmiths University of London ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Portfolio: http://marcodonnarumma.com Research: http://res.marcodonnarumma.com Director: http://www.liveperformersmeeting.net

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Re: [PD] [GEM-dev] Oculus Rift distortion/support
by Cyrille Henry 27 Oct '13

27 Oct '13

hello Michael, i copy this mail to pd list, since it is of generic interest. but first : did anyone have a working example of oculus rift in GEM? Rendering on stereo is a nice idea, but as you noticed, in order to "sumarized" all the object it's easier to render in a framebuffer then distord this resulting image. Ideally, you would use stereo parametter to render in a framebuffer, then render the framebuffer through a shader in the main windows (whitout stereo). but i dont thing you can do that in Gem. Here is how i would do it. 2 framebuffer, and an abstraction that render primitive in the 2 framebuffer. then render this 2 framebuffer in the main windows with a shader, or merge this 2 FB in a 3d one and render this last FB with the shader. some things need to be adjusted (angle of view of the virtual cam / eyes distance /framebuffer size, etc). and the shader has to be added... Cheers c Le 26/10/2013 17:58, Michael Mihocic a écrit : > Hi Cyrille, > > I am still working on the Oculus Rift implementation and I finally managed to get some basic knowledge with shaders. However, now I know how to use shaders in Gem and on my Windows OS and I already played around with simple barrrel distortion examples... Thank you again for your previous support!! > > You proposed a solution (your Email below) how to implement the barrel distortion to our virtual world: > /"1st : left eye view without distortion, rendered in a frame buffer // > //2nd : right eye view (no distortion / framebuffer) // > //3rd : using the 2 previous texture and a shader, render the final image"/ > > I'm still having some questions: > 1.) Our current world is using the gemwin "stereo" parameter to create 2 images (-> actually it is one Gem window, but we adjusted resolution and size to fit it to our old HMD and each eye can see only half of the image; see attachement). > I'm wondering if it possible to use just ONE shader to render the entire image in one step?? But I'm not sure if this is possible with texturing?? > If not: Will I still be able to use the "stereo" parameter in gemwin?? > > 2.) As you can see in my screenshot: our world consists of many objects (cubes, lines, fadecrosses, spheres, ...). How can I summarize those objects, before processing them? Do I need to use a gemframebuffer for every single object?? > > My plan is to finish in 1(-2) months. If everything is working, I will provide the example patch & shaders to the pd/Gem community. > > Best regards, Michael > > > Our current view: > > > Desired Rift distortion: > > > > > -------- Original-Nachricht -------- > Betreff: Re: [GEM-dev] Oculus Rift distortion/support > Von: Cyrille Henry <ch(a)chnry.net> > An: Michael Mihocic <michael.mihocic(a)oeaw.ac.at> > Kopie (CC): gem-dev(a)iem.at > Datum: 25.07.2013 12:17 >> hello, >> >> one have to use shader in order create the image distortion. >> >> i think oculus should provide standard shader that you have to insert in your rendering process. >> >> the only problem is that you have to do 2 rendering : one for each eye. >> The best solution is to do a 3 pass rendering : >> 1st : left eye view without distortion, rendered in a frame buffer >> 2nd : right eye view (no distortion / framebuffer) >> 3rd : using the 2 previous texture and a shader, render the final image >> >> cheers >> c >> >> >> Le 25/07/2013 12:04, Michael Mihocic a écrit : >>> Dear list, >>> >>> we are using GEM with a head-mounted-display to present a virtual world to subjects performing acoustic localization experiments. >>> >>> Now we plan to switch from our current HMD to Oculus Rift (an upcoming virtual reality head-mounted display). Therefore we need to modify our image and add (asymetric) barrel distortion to the represented image. (The image distortion is compensated by the lenses in Oculus Rift.) >>> >>> My questions now: >>> - Is there an easy solution to implement barrel distortion to the rendered window in GEM? >>> - Does anybody of you already have some experience with GEM together with Oculus Rift? >>> >>> Since attachments should be avoided in this list, I do not send any example pictures of the distortion or our current presented world. If you are interested you can either contact me and I can send you some screenshots, or you can google for example images/videos of Oculus Rift distortion. >>> >>> Thanks in advance and best regards, Michael >>> > > -- > Michael Mihocic > Psychoacoustics & Experimental Audiology > Acoustics Research Institute <http://www.kfs.oeaw.ac.at/> > Austrian Academy Of Sciences <http://www.oeaw.ac.at/> > Wohllebengasse 12-14 / 1 > A-1040 Vienna, Austria > Tel: +43 (1) 51581 2515 (Office) > Tel: +43 (1) 51581 2525 (Lab) > Fax: +43 (1) 51581 2530 > michael.mihocic(a)oeaw.ac.at <mailto:michael.mihocic@oeaw.ac.at>

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GEM window immediately closing
by Mike Moser-Booth 26 Oct '13

26 Oct '13

Hello list, I decided to take another crack at learning GEM today, and have immediately hit a snag. I'm using the 64-bit build of Pd-extended 0.43.4 from apt.puredata.info with the KXStudio distro (based on Ubuntu 12.04). Whenever I try to create a GEM window, it flashes for a fraction of a second and closes. With messages set to all, the Pd window says: GEM: Only using 8 color bits GEM: Direct Rendering enabled! GEM: GLEW version 1.5.4 GEM: Start rendering GEM: Stop rendering Any thoughts on why this is happening and how to fix it? .mmb

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Metastudio 0.5
by Ed Kelly 26 Oct '13

26 Oct '13

Hi list, I've decided to release Metastudio 0.5, despite never having the time to make help files fo all the GOP objects I've made. I had kids - they are fairly high maintanance! :-) http://sharktracks.co.uk/puredata/metastudio-0.5.zip The big development is the quadtracker, but it needs a working version of the tof external to work. Apologies for this...it's missing from the current Pd-extended distribution, but I got it to work by tweaking the source code. You can download and compile a working version for Debian Linux here: http://sharktracks.co.uk/puredata/miXedremixed-2013-08-17.tar.gz There is a help file for quadtracker, but you have to add the Metastudio-0.5 folder to your search path in preferences. I hope you have fun with it. Like I said, I used to think I was busy, but please get in touch if you have a good question (or even a bad one) Bless, Ed Kelly Ninja Jamm - a revolutionary new music remix app from Ninja Tune and Seeper, for iPhone and iPad http://www.ninjajamm.com/ Gemnotes-0.2: Live music notation for Pure Data, now with dynamics! http://sharktracks.co.uk/

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Pd-list October 2013