Pd-list August 2010

pd-list@lists.iem.at

123 participants
216 discussions

CPU saving strategies
by David Schaffer 08 Aug '10

08 Aug '10

Hi there, I recently built a midi CC sequencer abs. It helps me add some timeline-based control to my patches. But I came across a problem I never had to deal with before: CPU consumption. I realized I could'nt use more than four instances of my sequencer before the patch would become unmanageable (interface freezes, audio drops, and, finally... a crash) I think this is related to the use of large size arrays. I would be grateful if someone out there could point me to a better data storing/ CPU saving strategy for my sequencer, maybe data structures? Thanks in advance. D.S http://www.flickr.com/photos/schafferdavid/ http://audioblog.arteradio.com/David_Schaffer/

8 15

GridFlow/GL !
by Mathieu Bouchard 08 Aug '10

08 Aug '10

GridFlow 9.11 has [gf/gl], a new interface to OpenGL, which aims to be a replacement for that undocumented portion of GEM which contains [GEMglBegin], [GEMglEnd], [GEMglVertex3f], etc. The main advantages are : GL is exposed as a long list of methods in one class, allowing many messagebox shortcuts that you can't do in GEMgl. all constant names such as GL_QUADS and GL_FILL are available as symbols in addition to the GLenum numbers : thus GL_QUADS is available as both symbol "quads" and float 7, while GL_FILL is available as both symbol "fill" and float 6914. You don't need to convert the names to numbers using a separate object, you can use them directly in messages. Those names and numbers are typechecked : they can only be used where GL allows them. This makes it easier to catch mistakes. (GEMgl would either say something like "Invalid operation" without enough context, or it would just crash.) Then also, it does not need a GemState in order to work. You can connect a [gemhead] to a messagebox saying "begin lines, vertex 0 0 0, vertex 1 1 0, end" going to [gf/gl], and that will be enough for [gf/gl]. it doesn't need weird tricks involving [repeat]. You never really need [repeat] with [gf/gl]. And finally, the source code is many times smaller (currently thirty-nine times smaller, but I expect that eventually it may grow to be only twenty times smaller...) _ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801

1 0

GEM and simple operation with shaders
by Jack 08 Aug '10

08 Aug '10

This four examples offer the possibility to add, substract, multiply and mix two textures of ANY sizes together (need a GPU compatible with GL_EXT_gpu_shader4). This four examples work fine here on my GeForce 9700 GTS with Ubuntu 10.04 and Pd 0.42.5 and GEM 0.92.3. Any comments appreciated. ++ Jack

1 0

Re: [PD] detect character in a symbol?
by patko 08 Aug '10

08 Aug '10

Hi, ----- "João Pais" <jmmmpais(a)googlemail.com> a écrit : > Hi, > > a quick question: I wanted to detect a character in a symbol, in order > to > route that symbol in a different way. Afaik, there is no object that > does > that, have you tried [any2string] ? so the only way would be to decompose the symbol in ascii > values, > and then detect it. > > Btw, this would also be used to decompose the original symbol into > several > parts (e.g. 123as78 -> 123 as 78). As before, the only way I imagine > it > would be doable in Pd would be through ascii decomposition. > > Any better ideas? > > Thanks, > > João > > -- > Friedenstr. 58 > 10249 Berlin (Deutschland) > Tel +49 30 42020091 | Mob +49 162 6843570 > Studio +49 30 69509190 > jmmmp(a)gmx.net | skype: jmmmpjmmmp > > _______________________________________________ > Pd-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list -- Patrice Colet

2 1

pulsar?
by adam sanches 07 Aug '10

07 Aug '10

Hello i would like to know if there is any pulsar object [pulsar synthesis] in pd. Thanks very much Adam

3 2

resonator: Making resonances with Pure Data
by hghoyer 07 Aug '10

07 Aug '10

Hi, I am looking for a way to simulate resonances in a tube. So a kind of resonator, or something. Maybe someone there already a patch to generate resonances? .hg

6 6

Re: [PD] squeakyshoecore
by Kim Cascone 07 Aug '10

07 Aug '10

nice work Chris! I'd love to peek at your patches when and if you make them available :))

2 1

Re: [PD] Ladi Session Handler
by michael noble 06 Aug '10

06 Aug '10

On Thu, Aug 5, 2010 at 4:11 PM, Pierre Massat <pimassat(a)gmail.com> wrote: Can it start applications as root? Pierre Every application you add to your 'studio' is added as a command-line call from within the gladish interface. I'm not sure without testing, but given that it allows opening in the terminal, you should be able to sudo whatever app and enter your root password when the terminal pops up. Keep in mind that this is not vanilla JACK - you need to use the patched dbus branch ladish provides to make the most of the ladish features. -mjn

1 0

Re: [PD] software license for pd general patch?
by patko 06 Aug '10

06 Aug '10

----- "Mathieu Bouchard" <matju(a)artengine.ca> a écrit : > On Tue, 6 Jul 2010, João Pais wrote: > > that's the same thing. then you'll be loosing time by typing a score > > > which has always the same rhythm/tempo. better put a metro with a > mod, > > and you have it. the music for which the program is made is more > like: > > Ah yeah, that's a good example score-wise. > > But then, the problems with such scores are things like the flirting > too > close to the "uncertainty principle" (tempo is used for a time too > short > to be really felt) and the "consonance" of tempos (13:10 can be quite > hard > to distinguish from 4:3 in many circumstances, just like such ratios > of > frequencies can). But you picked extreme scores, and I can see very > well > how pieces of much lesser complexity than that can be a lot more > followable by the ear _while_ at the same time having much of a use > for a > complex programmable super-metronome. > This uncertainty principle would only apply to uncertain styles of music, main differences between rythms are about how you interpret them If the rythm is played like every step with no accent, no one would make a difference between 11:8 , 4:4, 7:16 ... that's why we use some patterns where it's easier to recognize differents ratios, and those patterns are things that defines the style of the music. If we compare both the music of Ministry and the music of a Taraf de Haïdouks we would have for the same complex bars but different kinds of musics, because they use different kinds of patterns. In fact even in a simple 4:4 bar, the need for a variable metronome is quite necessary for orchestras. Different sections don't play their parts at the same tempo, if you pay attention to it, technicaly a section would play better if the tempo is slower or higher for different parts, that's why there is conductor. pryvitannie -- Patrice Colet

3 3

x11mouse external installation help?
by Joshua Evans 05 Aug '10

05 Aug '10

>>>I'm having some issues installing he [X11mouse] and [X11key] into pd under ubuntu >>> 10.04. Firstly, I followed the readme and it said that xlib-dev and >>> xmms-dev could not be found; I went into the synaptics package manager >>> and found xmms2-dev and libx-dev and installed these and all other >>> related ones. I then went into the terminal again and tried the make >>> command, it said the files were up to date. >I guess I should maintain these externals. The x11mouse and x11key >externals could be separated from the xmms one. (not related at all) >Unfortunately, I am not much into Pd these days, though I wrote more C >than before. Trying to make this work could take a few hours. If you >help me with finding the right libraries and such, I could put some >time in this. (the name of its Ubuntu package changed) >These days, I use the GNU autotools for managing compilation rules. I >don't write make files by hand much. >Also, I don't mind using puredata's SVN repository to manage this >code, though I much prefer distributed SCM, such as Git. >I suggest we follow this up on the pd-list. Maybe some people will >have more time than me to work on this. (though I am interested in the >C/X11 part) >Cheers! -- >Alexandre Quessy >http://alexandre.quessy.net/ Thank you very much for a quick response, I have tried searching the forums and pd-list and found there are others who have encountered the same issues. http://puredata.hurleur.com/sujet-3524-generating-keypress I have also attempted to compile the [input-event] external mentioned there and on pd-list but without success in that either. As both a new user of Linux and Puredata, I'm inexperienced in the knowledge of the former, and current, packages, but based upon their descriptions I assume that the renamed packages in question are: libx11-dev and under that, the required packages are: libdmx-dev libx11-xcb-dev libxaw7-dev libxcomposite-dev libxcursor-dev libxdamage-dev libxext-dev libxfixes-dev libxfont-dev libxft-dev libxi-dev libxinerama-dev libxkbfile-dev libxmu-dev libxmuu-dev libxpm-dev libxrandr-dev libxrender-dev libx-res-dev libxss-dev libxt-dev libxtst-dev libxv-dev libxvmc-dev libxxf86dga-dev libxxf86vm-dev xorg-dev xserver-xorg-dev I have no idea which of these are useful or not. I have forwarded this onto the pd-list All the best, Josh

1 0

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 August 2010