Pd-list March 2006

pd-list@lists.iem.at

148 participants
291 discussions

pix_video fails to switch between devices
by Vasily Kuznetsov 12 Mar '06

12 Mar '06

Hello list, I'm trying to do simultaneous capture from two cameras (Apple iSights) using pix_video from GEM, but sending [device x( to pix_video does nothing: no error is printed and input stream is not switched. When pix_video is created it prints the device list and both cameras are there, I also tried capturing from either cam in QuickTimeBroadcaster and it works as expected, but there seems to be no way to switch pix_video to the second camera. Can anyone help me with this, please? I'm on Mac OS X 10.4.3 and I'm using PD-0.38.4-Extended-RC7 which has GEM 0.90 in it. Best regards, Vasily Kuznetsov

2 1

GEM 3d movement
by cyborgk＠nocturnalnoize.com 12 Mar '06

12 Mar '06

Hi everyone, Well, I gave up on the video in GEM for a bit, and moved on to more productive experiments, so I can feel happy again, instead of frustrated! And, I can happily report, that GEM gives amazing performance on Windoze XP for generative graphics - I had about 12 randomly-generated-9point-polygons floating around in 3d space and it looked quite extraordinary. I guess cus it's using graphics processing, the CPU load was very low (5% maybe), I could afford to do a lot more of this stuff I guess. So, I want to experiment more with doing some things in 3d space. Now, I've worked with movement a lot more in 2d space then 3d, and mostly in Flash ActionScript, so I'm a little new at it, and I'm trying to figure out how to do the BEST (most optimized) movement in 3d with GEM. First, is there an external to calculate distance between 3d points? Should I just create an abstraction? I'd assume a C coded external would be most efficient for processing... Second, and I guess this is a more math question than GEM questions, but I want objects to pick a random point in space, then fly to that point, but using a curved path rather than a straight line. What would be the simplest way to achieve this? What about a more complicated curve, that changed say 3 times in 3d space, like . start ) curve 1 ( curve 2 ) curve 3 . end Can anybody suggest things? I guess that I just need the simple curve equation, and then: create 3 random points pick 4 control points between start and 1, 1 and 2, 2 and 3, 3 and end... So I guess I just need the equation! Finally, did anybody ever get flocking to work? I want to do flocking, but I think the one external mentioned before won't work, because I need to be able to change the "goal" point at any time and have the flock move towards it. For simple flocking, I guess I could create an imaginary point, not worry about direction, and only implement collision detection/reaction. Any idea best methods to do this? I think that I: 1. Calculate target new position 2. Calculate object a new position 3. Calculate object b new position 4. If b is too close to a, recalculate the position 5. Calculate c new position 6. If c is too close to a or b, recalculate the position I think that, this is not completely accurate, but maybe its efficient to approximate this way. Maybe there's a better way though. Also, I don't know how I should recalculate the position if it's too close, say I get to the twelfth object and there are other objects around it? Maybe there's a better way! Thanks, David

3 4

Re: Re: [PD] stability of Gem for video playing
by bigswift＠cox.net 12 Mar '06

12 Mar '06

i ran my Gem patches[osx] for an MFA installation for 90 days without software fail. > > From: "B. Bogart" <ben(a)ekran.org> > Date: 2006/03/07 Tue PM 04:00:05 EST > To: cyborgk(a)nocturnalnoize.com > CC: PD List send <pd-list(a)iem.at> > Subject: Re: [PD] stability of Gem for video playing > > Patrick Pagano Digital Media Specialist University of Florida Digital Worlds Institute 352-294-2082 _______________________________________________ PD-list(a)iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list

13 22

RE: [PD] Ubuntu OSX pdp pidip stuff
by Patrick Pagano 12 Mar '06

12 Mar '06

So testing on the old 533 went well so i moved the ubuntu installation over to the G4 laptop. And have successfully compiled and am running pdp0.12.4-test-4 pidip.0.12.10 pdp_freeframe with most of the plugins working Gem gem2pdp, pix_2pdp, etc... the ubuntu install disk found my audio,video,wireless card and all devices. But of course the second monitor out would not work but i found http://ozlabs.org/~jk/docs/mergefb/ So now the VJ suite is running on ubuntumac as well TWO ISSUES i am experiencing; 1.) Logitech usb Webcam flickers wierdly when running through pidip/pdp patches--works fine with XAWTV and effectv [no flickers, but wierd color] can someone suggest a good webcam to use with ubuntu ppc? 2.) When running Gem, i must slightly re-size the gemwin for it to movies/files in the patch to appear in the Gemwin. very strange Patrick Pagano, B.S., M.F.A Digital Media Specialist Digital Worlds Institute University of Florida (352) 294-2082 -----Original Message----- From: pd-list-bounces(a)iem.at [mailto:pd-list-bounces@iem.at]On Behalf Of bigswift(a)cox.net Sent: Thursday, March 02, 2006 10:35 AM To: pd-list(a)iem.at Subject: [PD] Ubuntu OSX pdp pidip stuff ok, well i guess around 6;30, ye olde linux fever hit me and i installed ubuntu fresh on an 80GB older 533 G4 i did not install OSX. Everything seems to be working well except that the headphone sound does not work and currently all sound is emitted through the internal PC speaker. everything thing else is pretty straightforward hopefully some Alsa configging will sort that out. there is a nice marked speed difference from the 533 running OSX 10.3.9 to ubuntu 5.10 breezy it really does give the machine that old zip again pd 0.38-4 installed from source and works fine pdp 0.12.5-test4 works fine as does pidip 0.12.20 are these the current versions? i cannot seem to get a pdp_qt and when i run pdp_freeframe from a pdp_yqt i get a NOT A PDP_IMAGE d ??? ok sevvy, i installed linux. Patrick Pagano Digital Media Specialist University of Florida Digital Worlds Institute 352-294-2082 _______________________________________________ PD-list(a)iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list

3 2

pd keyboard shortcut
by Karl Nilsson 12 Mar '06

12 Mar '06

hi list - is there a way in pd (windows) to 'activate' your object once you have typed it in using a keyboard shortcut instead of having to reach for the mouse and click? Silly, obvious question perhaps... cheers Karl

5 7

Symbols set by floats
by Chuckk Hubbard 12 Mar '06

12 Mar '06

I am using general midi as a temporary tool. Each voice in my sequencer has a numberbox for selecting the instrument. I want to establish a list so that the label next to it will change to the name of the instrument associated with that number. Is it possible to have a symbol in an element of an array? PD is giving me an error: error: pd-gminst.instrument: not a number error: set: no method for 'symbol' Is there another simple way to do this? -Chuckk -- "It is not when truth is dirty, but when it is shallow, that the lover of knowledge is reluctant to step into its waters." -Friedrich Nietzsche, "Thus Spoke Zarathustra"

3 4

linux bug - PD doesn't load properly on repeated starts
by david golightly 12 Mar '06

12 Mar '06

Hey Devs, I've found a bug, doubtless someone here knows what's going on - I've got pd-0.39-2extended on my linux box running 2.6.15-4rt kernel/alsa/jack. I start jack, fine, start pd, loads & works fine, but if I close & restart pd more than 3 times, pd won't load correctly anymore unless I reboot my machine. Pd window will open, command line reads: normally, I see this (pd working correctly): Pd version 0.39-2extended-test1 compiled 23:27:31 Feb 26 2006 port 5401 TCL_LIBRARY="/usr/local/lib/pd/tcl/library" TK_LIBRARY="/usr/local/lib/pd/tk/library" "/usr/local/lib/pd/bin/pd-gui" 5401 Waiting for connection request... ... connected device 2: tried /dev/midi02 READ/WRITE; returned -1 device 2: tried /dev/midi2 READ/WRITE; returned 5 I quit, then reload, the quit, then reload, and I notice that this time pd didn't actually quit - although the window is closed, the bash shell isn't freed. Then if I restart pd, I see this: Pd version 0.39-2extended-test1 compiled 23:27:31 Feb 26 2006 port 5408 TCL_LIBRARY="/usr/local/lib/pd/tcl/library" TK_LIBRARY="/usr/local/lib/pd/tk/library" "/usr/local/lib/pd/bin/pd-gui" 5408 Waiting for connection request... ... connected device 2: tried /dev/midi02 READ/WRITE; returned -1 and the Pd window will open, but the Windows and Media menus are not populated, & I can't open any files. pstree reveals 2 running pd & pd-gui processes. sudo killall pd; sudo killall pd-gui isn't effective in killing them. What's going on here? Why is pd not quitting completely? Additionally, sometimes pd will cause the jack server to stop unexpectedly. Hopefully this is a known issue & I've just done something blockheaded here.... Thanks, David

3 4

argument troubles..
by Karl Nilsson 11 Mar '06

11 Mar '06

Hi, I just started using pd again after a couple of years and keep coming across various strange happenings: why do: [hey there you[ <--- (messagebox) | [$1, $2,, $3[ | [print] print: there print: you error: $3: argument number out of range print: 0 and..... [hey there you[ <--- (messagebox) | [$0, $1,, $2[ | [print] print: 0 print: there print: you ...I don't get it. I am using pd (39.2) on windows cheers Karl

3 3

Re: [Pd] Symbols set by floats
by Urs Liska 11 Mar '06

11 Mar '06

[pool] lets you store indexed symbols. Should be no problem to let you do what you want. HTH Urs Chuckk Hubbard schrieb: > I am using general midi as a temporary tool. > Each voice in my sequencer has a numberbox for selecting the instrument. I > want to establish a list so that the label next to it will change to the > name of the instrument associated with that number. > > Is it possible to have a symbol in an element of an array? PD is giving me > an error: > error: pd-gminst.instrument: not a number > error: set: no method for 'symbol' > > > Is there another simple way to do this? > > -Chuckk > > > -- > "It is not when truth is dirty, but when it is shallow, that the lover of > knowledge is reluctant to step into its waters." > -Friedrich Nietzsche, "Thus Spoke Zarathustra" > > > > ------------------------------------------------------------------------ > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list -- Urs Liska GlÃ¼merstr. 5 D-79102 Freiburg www.graft-music.com www.suonomobile.de [Pd 0.39.0, WinXP]

1 0

array resize in $0-abstraction
by Federico 11 Mar '06

11 Mar '06

Hello list! I am trying to follow some general standards while writing abstractions with pure-data. One of these, is the habit of prepending $0- to send/receives, so that it is possible have more than one instance of an abstraction. All it is ok except when I use arrays in my abs. i tried to use the message: ; $0-myarray resize $1; or even: [nbx] | [resize $1( | [s $0-myarray] but pd outputs rispectively: error: 1002-sample: no such object error: 0-sample: no such object how I can resize arrays inside multi-instance abstractions?

3 2

← Newer
1
...
17
18
19
20
21
22
23
...
30
Older →

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

Pd-list March 2006