Pd-list June 2003

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pd and director
by --//-- 23 Jun '03

23 Jun '03

link to the director osc plugin: http://www.mat.ucsb.edu/~g.kling/OSC/oscar.html regards

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re(2): pd & director
by Fares Kayali 23 Jun '03

23 Jun '03

hi >> How good is Video performance with Macromedia Director? > Not very good, but it deppends again on what exactly you want to do > with the video I want to do a video mixer... so it should be able to overlay multiple channels, color keying, alpha mattes and so on... I'm choosing Director because of its ability to play flash movies as well as being able to animate 3d to the sound input of pd what should provide interesting possibilities... Any tips on how to get maximum video performance? best regards! Fares

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newbie question about externals
by jerome abel 23 Jun '03

23 Jun '03

hi everybody, thanks once again for all answers so fast! I would like create my own object, how it works, i don't understand the documentation and i don't find any answer on the mailing list. thanks, jerome

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Re: [PD] Re: reduce CPU usage
by Olaf Matthes 23 Jun '03

23 Jun '03

chris clepper schrieb: > i don't see a version 1.0.1 on that page and the freeverb~.c file is > dated july 7 2002. maybe the website updates haven't gone through > yet? Hi Chris, I checked the site again, it should be there. The third one from the top.... > a bypass is a great idea and i think more pd audio externals > should have that. i can see how a conditional controlling the state > of processing would use some cpu but it should be a better alternative > to having it process when not needed. In Max it seems to be possible to 'disable' single objects (instead of turning off DSP for a whole subpatch). I havn't found out how to do this yet. > i can have a try at the freeverb~ > code too if you want. if you really want to get serious about having > it go fast on PPC then altivec is the way to go - even without much > unrolling it will be a whole lot faster than scalar (~300%). First of all, many thanks for the detailed information! I'll try some of these tips with freeverb~ and see what it does. But I can't use/test altivec since I only have a G3.... Olaf

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PID loops/controlling robots with PD
by Hans-Christoph Steiner 23 Jun '03

23 Jun '03

I am working with http://www.amorphicrobotworks.org to help them move from Max/MSP on MacOS 9 to Pd on Windows so that don't need two computers for each robot. Currently the set up is two computers: one Windows PC running ShowFlow/HRBox (http://www.mediamat.com/) responding to MIDI input; and one Mac running Max/MSP to control the HRBox software using MIDI. By using PD, we can have both programs running on one computer. Also, we can save money by not having to buy Max/MSP for each robot. So this got me thinking. The ShowFlow/HRBox software is expensive and we are basically only using the PID loop control features of it, so if I could do this in Pd, as well as the data aquisition, then I could run the whole robot using Pd alone. So I am wondering whether anyone else has tried using Pd to control robots? .hc

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Wacom tablet support?
by evan raskob [PD] 23 Jun '03

23 Jun '03

Hello, Does anyone know of an object/plug-in/external for Wacom tablets? Specifically, I'm looking for something that would use the pressure-sensitivity, and the buttons on the pens. I'd be willing to help pitch in for development, if needed. thanks, Evan

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color keying using pd and Gem for OSX
by tim cleminson 22 Jun '03

22 Jun '03

hi, i am having limited success achieving color keying using 2 stream of video. Have tried using the [pix_alpha] method and can achieve color keying using to picture sources or using video as the background and an image as the keyed foreground, but replacing the foreground image with a movie does not work. tried converting the foreground movie using [pix_rgba] but no use, it just screws up the color. using [pix_hsv2rgb] results in some sort of keying but not through the pix_alpha method just as a result of shifting the color fields around. i was wondering if a) what i am trying to do is just wrong b) some crucial step is missing c) GEM implementation on OS X is lacking cheers, tim

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[Fwd: Re: [PD] pidip, connecting objects]
by Yves Degoyon 22 Jun '03

22 Jun '03

-------- Original Message -------- Subject: Re: [PD] pidip, connecting objects Date: Sun, 22 Jun 2003 21:46:42 +0200 From: Yves Degoyon <ydegoyon(a)free.fr> To: supriya kher <meetsupriya(a)hotmail.com> References: <Law9-F47WjAKYVpMmOl0000b19b(a)hotmail.com> hi, connecting objects can be done by entering the edit mode in a patch ( ctrl-e ) and draw a link from the output of an object to the input of another one. btw, here's attached the pach you need. sevy supriya kher wrote: > Hi, > > I am able to run the pidip-0.9.3. I am able to run pdp_mgrid using > .mov file and get output. > > But I want to give my mpeg2 file as a input to pdp_mgrid program. I > should connect pdp_live~ and pdp_mgrid together in new patch, right? > > How to do it? Can anybody please send me in a gif file, the outline of > the new patch? How to connect objects in a new patch? > > With warm regards, > Supriya > > _________________________________________________________________ > Feeling lost and loneyl? Need a little astro guidance? > http://www.msn.co.in/Astrology/ > > > _______________________________________________ > PD-list mailing list > PD-list(a)iem.at > http://iem.at/cgi-bin/mailman/listinfo/pd-list > > #N canvas 168 29 842 529 10; #X floatatom 252 235 5 0 0 0 - - -; #X text 301 236 Number of video frames decoded; #X msg 217 125 connect \$1; #X text 295 75 Read video file; #X obj 217 54 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1 -1; #X obj 217 76 openpanel; #X obj 144 206 pdp_live~; #X obj 217 100 makefilename file://%s; #X obj 107 465 pdp_xv; #X obj 146 333 pdp_mgrid; #X floatatom 240 262 5 0 0 0 - - -; #X floatatom 249 283 5 0 0 0 - - -; #X text 294 282 Grid dimension (X); #X floatatom 266 304 5 0 0 0 - - -; #X floatatom 284 328 5 0 0 0 - - -; #X floatatom 166 416 5 0 0 0 - - -; #X floatatom 211 382 5 0 0 0 - - -; #X text 263 388 Y coordinate of cell where motion has been detected ; #X text 311 303 Grid dimension (Y); #X text 219 416 X coordinate of cell where motion has been detected ; #X text 333 326 Grid visibility; #X text 286 262 Threshold; #X connect 2 0 6 0; #X connect 4 0 5 0; #X connect 5 0 7 0; #X connect 6 0 9 0; #X connect 6 4 0 0; #X connect 7 0 2 0; #X connect 9 0 8 0; #X connect 9 1 15 0; #X connect 9 2 16 0; #X connect 10 0 9 1; #X connect 11 0 9 2; #X connect 13 0 9 3; #X connect 14 0 9 4;

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re: [PD] color keying using pd and Gem for OSX
by leo {depart} 22 Jun '03

22 Jun '03

hi tim! you might send me your patch (at least the part where you try the keying) so that i can have a look... keying works fine with pix_alpha here, do not forget to add an [alpha] object to the gl-queue. what version of gem are you using? cheers leo ---- http://depart.at http://epy.co.at >Date: Sat, 21 Jun 2003 13:35:23 +0100 >From: tim cleminson <si1ver(a)seabassmassive.com> >To: pd-list(a)iem.at >Subject: [PD] color keying using pd and Gem for OSX > >hi, > i am having limited success achieving color keying using 2 stream of >video. Have tried using the [pix_alpha] method and can achieve color >keying using to picture sources >or using video as the background and an image as the keyed foreground, >but replacing the foreground image with a movie does not work. > tried converting the foreground movie using [pix_rgba] but no > use, it >just screws up the color. using [pix_hsv2rgb] results in some sort of >keying but not through the pix_alpha method just as a result of >shifting the color fields around. > i was wondering if > a) what i am trying to do is just wrong > b) some crucial step is missing > c) GEM implementation on OS X is lacking > >cheers, tim

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chorus filter
by astroboy2520 22 Jun '03

22 Jun '03

i have a projected piece i would like to work on soon, and i was wondering if there are any tutorials available (web or books) that will break me in on how to implement such a filter in PD? i am looking to see if it is plausible to compose a piece utilizing such filter in real time, rather than using a software editing program to apply the effect and cutting it together. ************ astroboy2520 ************

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Pd-list June 2003