Pd-list January 2005

pd-list@lists.iem.at

122 participants
191 discussions

Footcontroller w midi-out
by Gigi 05 Feb '05

05 Feb '05

Hi List ! Happy new year to all the computer nerds ;-) A simple question, does anybody have a good recommendation for a midi-capable foot-controller. Like a wah-wah with midi out ??? Thanks Luigi

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puredata.info photo albums broken
by ClaudiusMaximus 03 Feb '05

03 Feb '05

https://puredata.info/Members/claudiusmaximus/dohpaint/album gives me: " Site error This site encountered an error trying to fulfill your request. The errors were: Error Type PTRuntimeError Error Value Page Template photoalbum_view has errors. Request made at 2005/01/25 16:24:56.453 GMT+1 "

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PD and GEM for virtual environments
by Peter Brinkmann 01 Feb '05

01 Feb '05

Hi, I've been thinking about using PD and GEM in CAVE-like immersive virtual environments like the PORTAL at TU Berlin and the CAVE/CUBE at UIUC (www.math.tu-berlin.de/geometrie/f5/portal.shtml, www.isl.uiuc.edu). Has this been done before? I did find a few passing references to PD and sound in CAVEs on the web, but nothing about PD and GEM. The basic setup of a CAVE consists of a number of projection screens, aka walls (three for the PORTAL, six for the CUBE), controlled by one computer each, plus one master computer. Here's what I have in mind: - The master does audio with PD and handles user input via mouse, keyboard, MIDI controller, etc. - The wall computers run visualizations with PD and GEM. Those visualizations are identical except they use different viewports for different walls. - The master controls the walls via netsend/netreceive. - A python script on the master handles CAVE-specific input (such as head tracking data) and updates the master via pdsend/pdreceive. It may be a good idea to build a little python extension that encapsulates the functionality of pdsend/pdreceive. All this seems straightforward enough, but there are two issues I'm worried about: - Can I change the viewport in GEM? The FAQ has some comment regarding the default viewport, but little information on how to change it. - How well does GEM support stereo viewing? Any thoughts would be appreciated! Best, Peter

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Re: Fwd: Re: [PD] pdp_xv / xcanvas questions
by ydegoyon＠free.fr 31 Jan '05

31 Jan '05

hola, >> >> > xvinfo gives me something like this: > Adaptor #2: "NVIDIA Video Interface Port" > number of ports: 1 > port base: 172 > operations supported: PutVideo > > does this mean i will have 172 xv's ? which would > be enough if i could use it with pdp_xcanvas. emmmm, no, this means in that case, you can only have 1 ( that's number of ports that matters, didn't i say that ? ) > >> >> mm, should be there.. maybe a typo ? >> >> >> > i opened the help for pdp_xcanvas and get the following output: > pdp_xcanvas 640 480 3 > . pdp_xcanvas is a hacked version of pdp_canvas that is not compiled in the official, the regular object id pdp_canvas ( or pdp_ocanvas, with overlay ). saludos, sevy

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Mixer volume control
by Phil Thomson 31 Jan '05

31 Jan '05

Hi all, My first pd patch is this one: http://www.sfu.ca/~pthomson/BLIM.pd A simple four-stereo-channel soundfile player and mixer. But I wonder how I could add volume control to each channel and maybe even to the stereo outs. I would like a slider-like object that could do this, but when I put actual sliders between the readsf~ and the mixer, I can't connect the output of readsf~ to the slider. How could I make something like that happen? Ideally, I'd also like to have sliders that could control the left and right of each stereo channel together, so I would only have to move one slider to adjust the amplitude of a particular sound file. Is this possible? Thanks in advance for any advice. Phil -- Phil Thomson hellomynameisphil(a)gmail.com { home: http://www.sfu.ca/~pthomson/ { blog: http://www.bloglines.com/blog/PhilThomson { label: http://centibel.org/

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gem preview-window
by sara＠x-i.net 31 Jan '05

31 Jan '05

Hi, When using Gem for live-performances, how do people get their preview-window before the actual 'output'? Right now I only know about the possibility of using one gemwin which will be used with a offset message as the projection. Is it possible to get 2 preview-windows, or is a 'vga-splitter' [projector / 2nd monitor] the only solution to be able to see what you're doing when performing? Thanks, Sara

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Fwd: Re: [PD] pdp_xv / xcanvas questions
by ydegoyon＠free.fr 31 Jan '05

31 Jan '05

----- Forwarded message from ydegoyon(a)free.fr ----- Date: Thu, 27 Jan 2005 18:23:11 +0100 From: ydegoyon(a)free.fr Reply-To: ydegoyon(a)free.fr Subject: Re: [PD] pdp_xv / xcanvas questions To: Marc Widmer <metafor(a)gmx.net> Quoting Marc Widmer <metafor(a)gmx.net>: hola, > hi there > > i am wondering what is the maximum of pdp_xv possible? realised that i can > not make more then 33. depends this on the hardware used? definitely, yes, the limit is indicated by "Number of Ports" when you issue a 'xvinfo' > (pdp-12.4 pidip .17, could just check on my laptop, 32mb nv2go) > i have pidip compiled without complains but somehow i do not have this > object pdp_canvas, where you could position multiple videosources. > do i have to enable this somewhere in the makefile? > mm, should be there.. maybe a typo ? > i am asking, because i would need a huge a matrix of small videfiles > (40x40)pix and thought a combination between multiple xv's and inside of > those another matrix of videos, so that at the end i would have 32x24(or > less if necessary) small videofiles. they don't need to play all at the same > time. this seems brutal and you would get very low framerate with these dimensions. cheers, sevy > > > enlightenment welcome > marc > > -- > 10 GB Mailbox, 100 FreeSMS http://www.gmx.net/de/go/topmail > +++ GMX - die erste Adresse für Mail, Message, More +++ > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> > http://iem.at/cgi-bin/mailman/listinfo/pd-list > ----- End forwarded message -----

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pix_vid error
by Owen Cartwright (hotmail) 31 Jan '05

31 Jan '05

In windows with gem version .90 I get this error when I attempt to render the gemwin: 'pix_videoDS: Could not start graph playback, hr 0x00700001' I am trying to capture input from my Sony DV camera. Perhaps I am missing something completely, like an object or something. I attached my patch.. very simple... But I can't find any detailed documentation on alot of GEM objects. Is there help patches I can get so that I can open help for specific objects directly from within the PD window? (i.e. right click, help?) regards, owen cartwright

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GEM with freeglut or fglrx on fedora core 3
by patrick 31 Jan '05

31 Jan '05

hi, i'm on fedora core 3 with ati driver (fglrx) for xorg. kernel 2.6.10-2.1.ll.rhfc3.ccrm - glut is not install, it's freeglut: /usr/include/GL/freeglut.h /usr/include/GL/freeglut_ext.h /usr/include/GL/freeglut_std.h /usr/include/GL/glut.h /usr/lib/libglut.a /usr/lib/libglut.so this is what i got when i'm trying to ./configure: checking for sin in -lm... no checking for main in -lz... no checking for glInitNames in -lGL... no checking for glInitNames in -lMesaGL... no OpenGL is mandatory this is my config.log: http://www.workinprogress.ca/pd/config.log what should i do? patrick

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Re: [PD] PD and GEM for virtual environments
by Peter Brinkmann 31 Jan '05

31 Jan '05

Hi, On Mon, Jan 24, 2005 at 02:02:14AM +0100, Malte Steiner wrote: > I showed on 22. in Berlin a VR installation I wish I'd known that earlier... > (but not Cave, just one > screen and footcontrolled input) done with another open source free > software called Blender > > http://www.blender.org/ Does Blender offer any support for multiple screens? I glanced through the features page but didn't see anything to that effect. Best, Peter

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Pd-list January 2005