Pd-list July 2008

pd-list@lists.iem.at

111 participants
206 discussions

Harware and video card with Linux
by Jack 19 Jul '08

19 Jul '08

Hello, I would like to use one PC with ubuntu and 2 graphic cards with 2 outputs (total : 4 video outputs). I usually use a Mac. Can you give me a good harware configuation using Pd and GEM equivalent to a MacPro configuration (2 intel Quad-core 2,8 GHz and 2 ATI Radeon HD 2600 XT) ? Not too expensive please ! Thanx a lot. ++ Jack

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Re: [PD] really annoying question about tildes~
by Matt Barber 19 Jul '08

19 Jul '08

Not to be a stinker, These are very easy to implement as abstractions in Pd vanilla even without expr~, yes-no? [>~] : [inlet~] [inlet] | / [-~ $1] | [max~ 0] | \ [/~] | [outlet~] [<~] : [inlet~] [inlet] | / [-~ $1] | [min~ 0] | \ [/~] | [outlet~] [==~] : [inlet~] [inlet] | / [-~ $1] | \ [sig~ 1] [/~ ] \__ _/ [-~] | [outlet~] or : [inlet~] [inlet] | / [-~ $1] | \ [/~] | [*~ -1] | [+~ 1] | [outlet~] Not that this helps at all with the special character problem, and they're bound to be less efficient. One cool thing, though, is the ability to turn both inlets into signal inlets (but ditching the $1). Matt > Date: Fri, 18 Jul 2008 18:18:08 +0900 > From: "hard off" <hard.off(a)gmail.com> > Subject: Re: [PD] really annoying question about tildes~ > To: "IOhannes m zmoelnig" <zmoelnig(a)iem.at> > Cc: pd-list(a)iem.at > Message-ID: > <161320dd0807180218p74f5d585j62f2f9aeffb837c9(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > yeah totally. > > it seems nonsensical that pd has > and < for control signals, but not for > audiorate signals. > > and as andy obiwan mentioned before [pow~] would also be very useful. > > > as far as i can guess, all of these objects are very simple code-wise.

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Re: [PD] cyclone into vanilla
by Matt Barber 18 Jul '08

18 Jul '08

> if someone built abstractions with the same name, is it likely that they > have different behaviour? Some of the signal objects would have to have a different behavior because of how [inlet~] works. If [inlet~] could take an optional float arg to output a constant sig (tough because it takes symbol args as well, but not impossible), then you could have abstractions which could take creation arguments *or* signals in all inlets in one abstraction implementation. Otherwise [inlet~] promotes float messages already, but it's very buggy in canvases that have an [inlet] to the left of [inlet~](s). With the current tools it's hard to implement some of them efficiently, too. Other problems with abstractions would be something like "gate" -- you need [initbang] for that one, which is not in vanilla (it's otherwise very easy to make an abstraction out of) -- or [spigot] could become a multi-outlet object whose only difference from [gate] is the (proper, IMO) "right inlet controls" Pd style -- this is one of the "proper behavior" problems that has come up recently; [pow~] was another, if my memory isn't shot. One slightly different tack would be instead of trying to bring cyclone (etc.) into vanilla, to just ensure the existence of standalone control and signal objects for all the functions and operators in the expr suite -- that would be a decent start. It would at least satisfy those who want a more complete set of mathematical tools without needing to use expr; it seems that's where most of the complaints have come of late. Matt

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Free rotation in GEM
by PSPunch 18 Jul '08

18 Jul '08

Hi, I have a question which I know myself is very vague, but may also be straight forward as well to anyone who has had the same problem. Trying to achieve free rotation *without* using [accumrotate], I have come across concepts such as multiplying matrixs and converting a matrix to "quarternion", "gimbal lock". At least my understanding so far is that, no combination of chaining [rotate] objects give me results I expect. How do you implement precise control of rotation matrixs? Is this exactly what people use GridFlow for? Or else, is the only option to make a patch which crunches yucky and complex matrix multiplication, then feed the results to [rotate] ? -- David Shimamoto

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Pd-extended 0.40 cannot load libraries
by Thomas Mayer 18 Jul '08

18 Jul '08

Hello, after my switch from Debian Etch to Lenny I have also tried the latest versions of Pd-extended, 0.40-rc3 and the current autobuilds for 0.40 and 0.42. All three of them cannot load certain libraries that are in my startup list. Having not followed the list closely in the last weeks and months, I am not sure if this is a know or even intended behaviour, but Gem gets loaded without any problems. Libs that don't get loaded: zexy, flatspace, rtc, cyclone. cu Thomas -- "Prisons are needed only to provide the illusion that courts and police are effective. They're a kind of job insurance." (Leto II. in: Frank Herbert, God Emperor of Dune) http://thomas.dergrossebruder.org/

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pdpedia upgrade status
by Hans-Christoph Steiner 18 Jul '08

18 Jul '08

So during the OS upgrade, MySQL was updated from 4.x to 5.0, so that was also causing problems. Things should be working everywhere now. At least, I got my admin options back. Now I get delete the spam! .hc ------------------------------------------------------------------------ ---- Mistrust authority - promote decentralization. - the hacker ethic

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os x 10.5 autobuilds?
by marius schebella 18 Jul '08

18 Jul '08

hi, did someone ever get os x 10.5 autobuilds up and running? marius.

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cyclone into vanilla
by marius schebella 18 Jul '08

18 Jul '08

hi, is there any progress in integrating cyclone into vanilla? I grab this list of objectclasses from http://suita.chopin.edu.pl/~czaja/miXed/externs/cyclone.html and hope it is current. I guess there are some problematic classes like counter, Append, Clip, prepend... and some are redundant. but there are also the always missing >~ and <~. can we comment on this list vote some in/out? if someone built abstractions with the same name, is it likely that they have different behaviour? could we at least agree on "behaviour" of object classes, independently of their implementation? for example agree on a [counter] or [record~] class specification, and then someone can write it in c or as abstraction or in lua... here's the list (split into the three parts "cyclone", "hammer", "sickle": !-, !/, ==~, !=~, <~, <=~, >~, >=~, !-~, !/~, %~, +=~ accum, acos, active, anal, Append, asin, bangbang, bondo, Borax, Bucket, buddy, capture, cartopol, Clip, coll, comment, cosh, counter, cycle, decide, Decode, drunk, flush, forward, fromsymbol, funbuff, funnel, gate, grab, Histo, iter, match, maximum, mean, midiflush, midiformat, midiparse, minimum, mousefilter, MouseState, mtr, next, offer, onebang, past, Peak, poltocar, prepend, prob, pv, seq, sinh, speedlim, spell, split, spray, sprintf, substitute, sustain, switch, Table, tanh, thresh, TogEdge, tosymbol, Trough, universal, urn, Uzi, xbendin, xbendout, xnotein, xnoteout, and zl abs~, acos~, acosh~, allpass~, asin~, asinh~, atan~, atan2~, atanh~, average~, avg~, bitand~, bitnot~, bitor~, bitshift~, bitxor~, buffir~, capture~, cartopol~, change~, click~, Clip~, comb~, cosh~, cosx~, count~, curve~, cycle~, delay~, delta~, deltaclip~, edge~, frameaccum~, framedelta~, index~, kink~, Line~, linedrive, log~, lookup~, lores~, matrix~, maximum~, minimum~, minmax~, mstosamps~, onepole~, peakamp~, peek~, phasewrap~, pink~, play~, poke~, poltocar~, pong~, pow~, rampsmooth~, rand~, record~, reson~, sah~, sampstoms~, Scope~, sinh~, sinx~, slide~, Snapshot~, spike~, svf~, tanh~, tanx~, train~, trapezoid~, triangle~, vectral~, wave~, and zerox~. marius.

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Re: [PD] Creating music notation with GEM
by Collin Oldham 18 Jul '08

18 Jul '08

Hi David & list, I did a project at Stanford/ccrma, for which my pal Rob designed a system that used Lilypond to display the output of a patch, and that worked beautifully, from the performer's (my) point of view. Here's a link to his paper, see section 2.7. http://nime.org/2006/proc/nime2006_338.pdf Collin >

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really annoying question about tildes~
by hard off 18 Jul '08

18 Jul '08

why do tilde objects work in vanilla pd, but the zexy tilde objects are so uncooperative?

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Pd-list July 2008