Pd-list November 2002

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99 participants
141 discussions

M-Audio cards and PD
by Søren Bovbjerg 24 Nov '02

24 Nov '02

Hi Has anybody used any of the M-Audio cards (like the Delta 1010) with PD (using the ALSA drivers)? How is the performance? Latency? Other comments? TIA Soeren

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gem: pix_film+separator=pd_crash!?
by dmotd 24 Nov '02

24 Nov '02

hello: im experiencing a bug with pd0.35/gem0.87 on win2k.. pd crashes when i attempt to texture map an .avi to two separated geos using the separator object (demo patch below). the bug occurs both with pix_texure and pix_texture2, and with pix_film and pix_movie.. i receive this error msg: The instruction at "0X015cf58b" referenced memory at "0x0be06e8b". The memory could not be "read". and disassembly points to: 015CF58B mov ecx,dword ptr [ebx+edx] i'm under the impression that this patch should work, as this sort of setup is mentioned in the gem documentation.. it may also be worth noting that the separator object works on standard (untextured) geos. thanks.. dmotd sepcrsh.pd ________________ #N canvas 115 239 587 506 12; #X obj 37 220 gemwin; #X msg 33 95 0; #X msg 65 113 1; #X msg 98 136 create; #X msg 129 161 destroy; #X obj 299 33 gemhead; #X obj 295 234 rotateXYZ; #X obj 220 277 separator; #X obj 365 272 separator; #X obj 211 419 cube; #X obj 371 420 cube; #X floatatom 405 303 5 0 0; #X floatatom 247 305 5 0 0; #X floatatom 381 221 5 0 0; #X obj 292 193 pix_texture2; #X msg 385 51 auto \$1; #X obj 385 32 tgl 15 0 empty empty empty 20 8 0 8 -262144 -1 -1 0 1 ; #X floatatom 327 137 5 0 0; #X obj 293 166 pix_rgba; #X obj 306 139 tgl 15 0 empty empty empty 20 8 0 8 -262144 -1 -1 0 1; #X obj 295 112 pix_film; #X msg 384 76 open homer.avi; #X obj 213 339 translateXYZ; #X obj 365 334 translateXYZ; #X connect 1 0 0 0; #X connect 2 0 0 0; #X connect 3 0 0 0; #X connect 4 0 0 0; #X connect 5 0 20 0; #X connect 6 0 7 0; #X connect 6 0 8 0; #X connect 7 0 22 0; #X connect 8 0 23 0; #X connect 11 0 23 1; #X connect 12 0 22 2; #X connect 13 0 6 3; #X connect 14 0 6 0; #X connect 15 0 20 0; #X connect 16 0 15 0; #X connect 18 0 14 0; #X connect 19 0 18 0; #X connect 20 0 18 0; #X connect 20 1 17 0; #X connect 21 0 20 0; #X connect 22 0 9 0; #X connect 23 0 10 0; _____________________________________________________________________ // free anonymous email || forums \\ subZINE || anonymous browsing subDIMENSION -- http://www.subdimension.com

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pd audio glit t t t ches
by collin olan 23 Nov '02

23 Nov '02

hi! short intro: i am new to pd but have been making things with max/msp and supercollider for a little while_ primarily for realizing my own music and sound works. reason i m writing this: i am getting very glitchy (unintentional) audio output from any pd patch i run (including the basic sinewave demo). my setup is -> pismo powerbook 640mb os x 10.2.2 another curiosity of this problem is that changing the system volume via the keyboard also produces audio dropouts. has anyone else had problems with this? need more info? thankyou_ -c

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RE: [pd] get screen pixel?
by wwcarpen 23 Nov '02

23 Nov '02

>What platform? On screen graphics *is* a portability issue. If you are >willing to use jMax there is gridflow to be mentioned. >Under linux i am currently writing on a bitmap external which could >learn to use X11 (but until now it only speaks PNG). Think this will be >nice for feedback. To know about mouse clicks in the feedback window >would also be nice. >You want realtime screen shots?! (better shooting a window ;) - Now >i'm astonished. It is quite complementary to putting a window on screen >so implementation is quite probable but will need about two weeks. Hope >i got some webspace until then. >My initial idea was to use bitmaps as sequencer format (to use gimp as >sequencer). But waveshaping and fader control are also applications. seems like this is similiar to the kinds of things i want to do with it, i think you got the idea. i'm gonna get a new (old) computer from a co worker and i guess it would be good to install linux on it to help with this sort of thing. im running windows me right now

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[pool] question
by David Sabine 22 Nov '02

22 Nov '02

Hello all - but specifically Thomas Grill, I really like [pool] and I can foresee many great uses for this external. I have a question however as I'm trying to understand the object's functionality. In the documentation (pool.pd and elsewhere) you talk about "directories" and such. But when I send a "mkdir" message, a directory is NOT created on my hard drive. I'm assuming then that I'm misunderstanding the nomenclature. I've never used the [coll] object in Max. Here's the question: Pool is really managing "arrays" or "dictionary" objects right? I mean KEY + VALUE pairs in the Visual Basic world are referred to as dictionaries. Arrays are values organized by 'index' (or in this simile: 'keys' which can be named). So in another sense, Pool and it's ability to 'mkdir' etc. is simulating the creation of database tables right? Or perhaps another analogy might be "recordsets"? I'm grasping a little here, but even in this early version of [pool] I can already understand ways that I can simulate columns and rows of records and even store information in different 'directories' as you say (which seem a lot to me like 'tables'). I understand that all the data is held in memory until such time as I want to commit the data to a file on my drive via the "save" method. When I do this, it's sort of like saving the database tables in a .dat file right? I realize that [pool] is merely in its first version (and is already awesome!) but I wonder if there are plans in the future to: a) allow the values to be returned by index (a la Visual Basic dictionaries) in cases where we might not know the KEY name...but we now it's index. b) allow control of a cursor (a la recordsets) so that operations like "movenext" or "movefirst" might be used? Regards, Dave S p.s.: I know I know I know...give me an inch and want a mile right!? I suppose I'm just really excited about this object. It's already useful in a million ways.

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cart2sph
by bbogart＠ryerson.ca 22 Nov '02

22 Nov '02

Hello all, I'm very confused by the values given by cart2sph in zexy 1.1. They conflict with my original expr based equation. So If I have x=5, y=5 and z=5 cart2sph gives me: r=8.66, phi=0.78, theta=0.61 In my own implementation I get: r=8.66, theta=0.955, phi=0.78 I'm using this equation: x^2+y^2+z^2=r^2 theta=cos^-1(z/r) phi=tan^-1(y/x) >From the zexy source I see: x->new_coord[0]=sqrtf(X*X+Y*Y+Z*Z); /* R */ x->new_coord[1]=atan2f(Y, X); /* PHI */ x->new_coord[2]=atan2f(Z, sqrt(X*X+Y*Y)); /* THETA */ Close, but not quite?! sorry my trig is not the best. Can anyone give me a hand with whats going on? Thanks! Ben PS: I attached my own expr version for comparison

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keyname
by marius schebella 22 Nov '02

22 Nov '02

hi, keyname seems to be broken in the current version 0.36 i do not receive any 0 for the "keyup". i'm testing this on windows 2k, linux seems to work fine(?). marius.

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get screen pixel?
by wwcarpen 22 Nov '02

22 Nov '02

hey, i was just wondering if it would be possible to write some sort of external that could ask what pixel is what color on the screen currently. this would be a good backwards way of getting other software to interact with pd. i already have a couple expiriments in mind. wwcarpen

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cyclone-0.1-alpha1, s_loader.c, and MacOSX
by Adam T. Lindsay 22 Nov '02

22 Nov '02

Krzysztof Czaja said this at Wed, 20 Nov 2002 20:07:48 +0100: >This is very much an alpha release, to be used by fellow coders, >or the very brave of all Pdiers. It is known to crash or behave >wildly. Krzysztof, Well, compilation on Mac OS X went *extremely* easily... absolutely no code changes necessary, and minimal flag changes in Makefile.common. (I'm blown away by your build system.) Once I got the libraries to work with PD (more below), the test patches gave very plausible results (but I don't know the behavior of the Max objects well enough to verify the mis- features). Miller, here's where you come in... But the test patches didn't work with PD right away. I tried opening something like Borax-test.pd and crashed with the following result: dyld: /usr/local/pd/bin/pd multiple definitions of symbol _hammer_checkint ./Borax.pd_darwin definition of _hammer_checkint ./funbuff.pd_darwin definition of _hammer_checkint The same function was included in two externals, and they clobbered each other when loaded by PD/Mac. Krzysztof, PD/Linux doesn't work that way, right? Not having a Linux box to compare with, I assumed that this wasn't supposed to be happening, and rather than trying to figure out how to package hammer and sickle as libraries, I took a look at s_loader.c. I poked in a few places, and as a lucky guess, I added the following flag to line 116 or so in s_loader: ret = NSLinkModule( image, filename, NSLINKMODULE_OPTION_BINDNOW + NSLINKMODULE_OPTION_PRIVATE); A new PD made from this works well with cyclone. I haven't tested for ill effects in enough other places yet. A bunch of questions fall out of this: Is changing PD the right approach in this case? Is the Linux behavior the one we want to emulate? Does this screw anything else up? I've attached my Makefile.darwin (replace Makefile.common in cyclone with a link to this), in case others want to experiment. adam PS. from the Mach-O Runtime Architecture PDF, page 123: NSLINKMODULE_OPTION_PRIVATE Do not add the global symbols from the module to the global symbol list. Instead, you must use the NSLookupSymbolInModule (page 128) function to obtain symbols from this module. <http://developer.apple.com/techpubs/macosx/DeveloperTools/MachORuntime/ MachORuntime.pdf> -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Adam T. Lindsay atl(a)comp.lancs.ac.uk Computing Dept, Lancaster University +44(0)1524/594.537 Lancaster, LA1 4YR, UK Fax:+44(0)1524/593.608 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

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Re: [PD] percolate for linux
by mprims＠skynet.be 22 Nov '02

22 Nov '02

I managed to compile most of the objects not being instrument models for linux (at least the ones I tried). The makefiles are there, no need for much modifications. The gQ problem is Windows only, I think. Lots of them sound rather distorted, however: I don't know if that's the intended behaviour, but I suppose it is. mik -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ .

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Pd-list November 2002