Pd-list November 2011

pd-list@lists.iem.at

96 participants
159 discussions

Re: [PD] pix_mask and gemframebuffer
by Max 15 Nov '11

15 Nov '11

yes, that's a nice patch. i am still wondering though why it doesn't look the same (sharp) when done without glsl. i remember someone said that he was working on making glsl abstractions to replace some of the pix_ es m. (posting back to pd-list, hope that's okay for you) Am 09.11.2011 um 16:23 schrieb Guido Tamino: > Hello, > > I've put together this quick and dirty glsl patch for alpha masking. > http://www.mediafire.com/file/c5cey458piu1d47/glslMask.zip > > Hope it helps. > > Best, > Guido > > Il giorno 09/nov/11, alle ore 15:01, Max ha scritto: > >> <masking4.pd> >> >> >> Am 09.11.2011 um 14:41 schrieb cyrille henry: >>> Le 09/11/2011 12:23, Max a écrit : >>>> thanks cyrille, >>>> am i getting closer? >>> yes, a bit. >>> except that : >>> - gemframbuffer does not have the same camera position than gemhead. >>> you need to add translateXYZ 0 0 -4 >> >> ah, right. >> works! but looks terrible. i am wondering why the resolution and edge looks so bad. >> >>> - pix_snap snap the curent frambuffer, you don't need to pass the framebuffer texture. >>> see attachment. >>> >>>> it's ok if it is slow, but i want to use gem objects to make a mask i can animate in gem, so there is now way around the snapping if i understand that correctly. >>> it's possible with shader : render 1st scene in a frambuffer >>> other scene in a 2nd frambuffer. set it to use texunit 1 >>> then, use something like the example : 10.glsl/5.multitexture, and change a bit the mixing equation. >> >> ok, seems that the answer on anything gem related i try lately is glsl. >> max >> >> >>> cyrille >>> >>>> >>>> max >>>> >>>> >>>> Am 09.11.2011 um 14:07 schrieb cyrille henry: >>>> >>>>> hello, >>>>> pix_masque need a pix, not a texture. >>>>> (one is in the CPU, the other in the GPU). >>>>> you need a pix_snap to pass the texture to a pix object. >>>>> beware, this is slow. >>>>> i recommend using a shader to emulate pix_masque, but using 2 texture and not 2 pix. >>>>> it will be hundred time faster. >>>>> >>>>> >>>>> Cyrille >>>>> >>>>> >>>>> Le 09/11/2011 11:52, Max a écrit : >>>>>> dear list, >>>>>> >>>>>> i'm trying to generate a b/w mask in gemframebuffer for a pix_mask >>>>>> pix_mask seems to ignore the texture from gemframbuffer. >>>>>> hints appreciated. >>>>>> m. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Pd-list(a)iem.at mailing list >>>>>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list >>>>> >>>>> _______________________________________________ >>>>> Pd-list(a)iem.at mailing list >>>>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list >>>> >>> <masking3.pd> >> >> _______________________________________________ >> Pd-list(a)iem.at mailing list >> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list >

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[PD-announce] gem 0.93.1
by IOhannes zmölnig 15 Nov '11

15 Nov '11

after a few days of waiting (for you) and hard labour (for me), Gem 0.93.1, the 1st bugfix release for the 0.93 series, has been released today. like always we have fixed numerous bugs and features, and most likely introduced an equal number of wishlists and showstoppers. noteable differences since 0.93.0: functionality bugs: - [pix_film] no longer crashes when sending an "auto" message to it, while no film is loaded - [pix_film]'s "auto" message actually does something - [pix_frei0r] no longer crashes when dynamically instantiating plugins documentation: - [pix_frei0r]/[pix_freeframe] help patches now mention how to dynamically load a plugin at runtime (or change the plugin) - [separator] help patch now explains how to only work on special openGL matrices binaries are available for w32 (installer & zip), for the brave and adventurous there is the source code. binaries for OSX are still not available yet, but we hope to get them online soonish. grab it while it's hot: http://gem.iem.at/releases/0.93.1 alternatively you can get the files from https://sourceforge.net/projects/pd-gem mfgadr IOhannes _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Re: [PD] pix_freenect 0.03 update
by Matthias Kronlachner 15 Nov '11

15 Nov '11

i think i fixed the path settings with install_name_tool. i don't have a second macbook to check if it is running on another machine as well. you can find it on the same place http://www.matthiaskronlachner.com/wp-content/uploads/2011/11/pix_freenect_… i'll set up a repo soon so it will be better to get updates. thanks, matthias Am 14.11.11 06:00, schrieb Hans-Christoph Steiner: > It'll only work if people have libusb in /usr/local/lib/libusb-1.0.0.dylib since that is where your libfreenect is looking for it. > > .hc > > On Nov 13, 2011, at 11:24 PM, Matthias Kronlachner wrote: > >> ah you are right.... thanks. >> i will have a look at this later on. hope it works on other computers than mine :-) >> >> i compiled libfreenect for myself with audio support... but it seems to be not very stable under osx. >> >> yes, would be good to work together to get a real stable libfreenect object. >> >> matthias >> >> ps.: sorry for confusion with your name, it's late...or early... i'll correct that :-) >> >> Am 14.11.11 04:57, schrieb Hans-Christoph Steiner: >>> Hey, >>> >>> Good news! Perhaps Budi and you can join forces, unless there is a reason to have different libfreenect objects. About the Mac OS X binary, it looks like you're not using Fink for libfreenect, so the embed-MacOSX-dependencies.sh script didn't work. That script looks for the /sw path of Fink. If you run these commands and compare them to the fux_kinect, you'll see the differences in the libfreenect and libusb references: >>> >>> otool -L pix_freenect.pd_darwin >>> otool -L libfreenect.0.0.1.dylib >>> otool -L libusb-1.0.0.dylib >>> >>> .hc >>> >>> On Nov 13, 2011, at 10:48 PM, Matthias Kronlachner wrote: >>> >>>> hi! >>>> >>>> finally i found some time to update my pix_freenect external for interfacing with the kinect sensor. >>>> >>>> you can find source code and binaries (osx, ubuntu 11.10) here: >>>> http://www.matthiaskronlachner.com/wp-content/uploads/2011/11/pix_freenect_… >>>> >>>> major changes: >>>> >>>> * output rgb and depth stream simultaneously, plus 4 channel audio samples as list on linux (audio from libfreenect is still experimental....) >>>> * uses libfreenect v0.1 -> not backward compatible!! >>>> * binary for osx -> thanks to hans-christian steiner for makefiles i found from fux_kinect... >>>> * accelerator and tilt angle output >>>> * different depth output modes (raw for distance measurement) >>>> >>>> you have to toggle a led, tilt or accelerator output after starting rendering to start the streams - don't really know why but i will try to fix that. >>>> >>>> i tested it with two kinects under ubuntu and osx and it worked fine. >>>> >>>> >>>> for using audio you have to build libfreenect with audio (default it is off!) and put the audio.bin into pix_freenect folder. >>>> >>>> >>>> have fun and please report bugs. >>>> >>>> >>>> matthias >>>> >>>> ps.: sorry for not continuing the plugin for pix_video framework but in case of the kinect it is quite difficult with the 2 streams you get plus the audio stream. >>>> >>>> _______________________________________________ >>>> Pd-list(a)iem.at mailing list >>>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list >>> ---------------------------------------------------------------------------- >>> >>> "A cellphone to me is just an opportunity to be irritated wherever you are." - Linus Torvalds >>> > > > > > > > ---------------------------------------------------------------------------- > > "It is convenient to imagine a power beyond us because that means we don't have to examine our own lives.", from "The Idols of Environmentalism", by Curtis White > > > >

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pix_coordinate confusion
by Joe Newlin 15 Nov '11

15 Nov '11

The pix_coordinate help file says that "pix_coordinate remaps the S, T texture values ..." What do S and T refer to? Thanks, JN -- www.joenewlin.net www.twitter.com/joe_newlin

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GEM / video plugins
by Jean-Marie Adrien 15 Nov '11

15 Nov '11

Hi list Ive just switched to GEM 93-3 on Mac, (needed surface3d that works great !) and Im not so familiar with the new implementation incidence : I used a driver (a component) that was in the Library/Quicktime folder to get videos through the DFG1394 analog/digital converter, (similar to the macam driver). All these drivers work fine on GEM 92, Os 10.5, 10.6, OS 10.7 It seems it doesn't work anymore with GEM 93 (Os 10.6). Any infos ? thanks JmA

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Ignore initial impulse/bang
by Sebastian Valenzuela 15 Nov '11

15 Nov '11

Hi, I would like an object or a construction of something that would ignore the first bang it receives. To be more descriptive, If something outputs a bang when it receives one, I would like it to output a bang the SECOND time it receives a bang. Also, if possible, I would like to reset this behavior. Thank you, Sebastian

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Interruption of audio / Loading sound into array
by Sebastian Hanusa 15 Nov '11

15 Nov '11

Dear List! I have a problem, where hope the solution is so easy as it is complicated for me to find a solution: When I am loading a soundfile (about one 30 seconds, stereo, .aif, 16bit/44100Hz) to an array and simultaneously I have a quite simple audio prozess like replaying a second soundfile with [readsf] + for example a delay and a bandbass I get in the moment of loading to the array a dropout of the audio stream. I tryed to switch off the patch within the array for the moment of loading - but I get the same result. Is there a way to avoid this dropout? I am working with pd_extended 0.42.5 on a MacBook 2 GHz Intel Core 2 Duo, OS X 10.5.8 Thanks a lot for any help and with best regards, Sebastian

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Detect a stagnate number
by Sebastian Valenzuela 15 Nov '11

15 Nov '11

Hi everyone, When I was learning ChucK I remember being able to do this with boolean logic: "Receive values from integer X. If X stays the same for a period of at least 1 second..." (to end this sentence in Pure Data) I'd like to send a single "bang". So I'd like to build something or find some object that "watches" a constantly changing number box and when it becomes stagnate (doesn't move from one number to the next) for a period of 1 second, I'd like to send a single "bang". Thank you for reading my question, Sebastian

2 1

ALPHA IN GEM
by haell muth 14 Nov '11

14 Nov '11

hi list! i build myself some video-controls in pd, but i have some trouble with the alpha channel. 1. alpha problem: the alpha of my videos with [pix_film] has an 1 pixel thick black outline. and it doesn‘t matter if the file has an premultiplied or straight alpha. 2. alpha problem: i use [pix_mask] to mask a video with an image (pure white and pure black), but the resulted alpha isn‘t perfect. (a bit transparent where it shouldn‘t be) and has an 1 pixel thick black outline. with [pix_film] i use [alpha] and [colorspace RGBA[. any hints? -regards

2 1

libdir READMEs
by Jonathan Wilkes 14 Nov '11

14 Nov '11

Hi, I'm trying to obsolete the help-browser with my search plugin. I've added a clickable folder icon to each result which will open the containing folder with the user's default file manager. (Also, there are homepage links for opening the libdir directory, Miller's tutorial folder, and some others.) I've also got a little info icon which I thought would be nice to bring up the README text file in Pd for the library of given search result. Is each libdir guaranteed to have a README.txt? Is it guaranteed to be named README.txt, or are there other names used? Barring that, I could have it open LIBNAME-meta.pd, and, barring that, I could just not to display the info icon. -Jonathan

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Pd-list November 2011