Pd-list August 2010

pd-list@lists.iem.at

123 participants
216 discussions

alpha performance question
by Matteo Sisti Sette 22 Aug '10

22 Aug '10

Hi, If I disable alpha blending by sending a 0 to the first inlet of an [alpha] object, will the performance gain be the same as if I completely remove the [alpha] object? thanks m.

4 3

FIR~ convolution array length bug
by Ludwig Maes 22 Aug '10

22 Aug '10

The FIR~ object apparently only allows convolution lengths >=3, I couldnt get it to work with length 2. probably some offset problem? or hardcoded assumption that it will be longer than 2? Greetings, Ludwig

3 2

pd books...
by David Schaffer 21 Aug '10

21 Aug '10

Hi, I recently bought two books on the processing language and I realized there were at least 10 books I could have chosen from. As far as I know, pd has only two books about itself ("bang" and "loadbang") How come ? Is this only a userbase issue? having a pd book like "getting started with processing" would be great to get new people to use the language. It should be real beginner level, teach you the basic programming skills and show you all you can do... is anyone working in that field? D.S http://www.flickr.com/photos/schafferdavid/ http://audioblog.arteradio.com/David_Schaffer/

8 9

tk version weirdness with 0.43test2
by Frank Barknecht 21 Aug '10

21 Aug '10

Hi, and another one: I have both tk8.4 (the default on Squeeze) and tk8.5 installed, -deve packages come from 8.5 only: robbi:~# dlocate -l tk8 Desired=Unknown/Install/Remove/Purge/Hold Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed ||/ Name Version Description +++-================-================-================================================== ii tk8.4 8.4.19-4 Tk toolkit for Tcl and X11, v8.4 - ii tk8.5 8.5.8-1 Tk toolkit for Tcl and X11, v8.5 - ii tk8.5-dev 8.5.8-1 Tk toolkit for Tcl and X11, v8.5 - configure seems to find 8.5 just fine: # config.log: ac_cv_lib_tcl85_main=no ac_cv_lib_tcl8_5_main=yes ac_cv_lib_tk85_main=no ac_cv_lib_tk8_5_main=yes ... LIBS='-ltk8.5 -ltcl8.5 -lrt -ljack -ljack' However running pd from the "bin" directory, the applications shows me its ugly, non-aliased 8.4 face. If I remove the tk8.4 package with aptitude, Pd starts with its nice and shiny 8.5-face, but that's not an option in the long run, as other packages need 8.4. Pd 0.42 would happily use 8.5 even with 8.4 installed. Can I hack 0.43 somehow to get the nice GUI I've grown to like a bit by now? (I tried something like "package require Tk 8.5" in pd-gui.tcl already, but that won't start at all.) Ciao -- Frank

6 10

Loading Gem's abstractions
by Miha Tomšič 21 Aug '10

21 Aug '10

Hello! I am using pd 0.42-5 on Linux and yesterday I compiled Gem 0.92-3. I am very happy with new Gem, but I have some minor problems with loading Gem's abstractions. When loading gem/examples/02.advanced/12.Hsv.pd the abstraction objects [hsv2rgb] and [rgb2hsv] don't get loaded. I can get the objects created using [Gem/hsv2rgb] and [Gem/rgb2hsv], but it's not the optimal solution because some of the Gem's abstractions include other abstractions from that dir and I would have to change all those abstractions. The other solution is adding /usr/local/lib/pd/extras/Gem to the -path directive. It's not that I am helpless here, I am just wondering why those abstractions are not found automatically, since Gem.pd_linux and all the -help.pd files that live in the same dir have no problems getting loaded. I know I should look at the loading code, but before I start digging... just maybe someone else already saw this as a before and has some answers. Thanks and take care, Miha

2 1

problem using [udpsend] from iemnet (or mrpeach) in a sub-process (with [pd~])
by Jack 21 Aug '10

21 Aug '10

Hello, When i try to send data from a sub-process using [udpsend] from iemlib (or mrpeach), it is impossible. The sub-process seems to block this send. The sub-process is created with [pd~]. Is it a normal behavior ? Any clue to resolve this problem ? In fact, i'm trying to send back to the main patch data from MSD in a sub-process to separate GEM from MSD. When i only use [pd~] and [stdout], it works but it is very slow, that's why i'm trying now with [udpsend] without [stdout] hoping to gain speed. Thanx. ++ Jack

7 18

Bang order entry
by João de Brito Rocha Reis Vidigal 20 Aug '10

20 Aug '10

Hi again. Here goes another problem! Ok. So I'm working with Arduino firmata here... To expose to problem in a simple way, I have 2 sensors that are detecting a door crossing. The 2 detectors give an order to the door crossing: coming in or going out. Now I just don't know how I can translate that to bang 2 different [bang( depending on if someone's comming in or going out! Can you help me with that!? Thanks Joao Vidigal

11 16

Re: [PD] problem using [udpsend] from iemnet (or mrpeach) in a sub-process (with [pd~])
by Jack 20 Aug '10

20 Aug '10

Le vendredi 20 août 2010 à 11:58 -0300, Bernardo Barros a écrit : > sorry: 44100 (or 48000 or 96000) > > 2010/8/20 Bernardo Barros <bernardobarros2(a)gmail.com>: > > maybe as audio signal through JACK? That is the fastest way I'm aware. > > That would be 441000 values per second per channel -1.0/+1.0, then you > > had to rescale again. Yep, i used to use JACK. But always slow here ;) Thanx anyway. ++ Jack > > > > 2010/8/20 Jack <jack(a)rybn.org>: > >> Hello Mathieu, > >> > >> I have already do that with [packOSC]/[unpackOSC] and > >> [udpsend]/[udpreceive], it is slow too. > >> I need to send 20000 lists of 3 floats (id, pos x, pos y) each frame (50 > >> fps) from one process to other. > >> Thanx. > >> ++ > >> > >> Jack > >> > >> > >> Le vendredi 20 août 2010 à 10:20 -0400, Mathieu Bouchard a écrit : > >>> On Fri, 20 Aug 2010, Jack wrote: > >>> > >>> > Is there another method to accelerate this transfert between GEM and MSD > >>> > using [pd~] and [stdout] ? > >>> > >>> Can you try communicating with OSC instead, and see whether it's faster ? > >>> It does lesser amounts of encoding and decoding for floats, than what > >>> [netsend]/[netreceive]/[stdout]/[pd~] need. How many floats do you need to > >>> send from one process to the other, per second ? > >>> > >>> _ _ __ ___ _____ ________ _____________ _____________________ ... > >>> | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801 > >> > >> > >> > >> _______________________________________________ > >> Pd-list(a)iem.at mailing list > >> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list > >> > >

3 3

Variable Sends
by Philip Cunningham 20 Aug '10

20 Aug '10

Hello, Sorry for the newb question. I had a search but couldn't find an answer -- maybe I'm not using the correct expression. I have 64 unique receive objects and I'd like to address them individually, sequentially from one send object ie. I'd like to send RGB values to 64 squares in GEM and colour them so that it cycles through a series of colours. Can anyone help? Philip

5 5

Output a value in an array as a bang
by João de Brito Vidigal 20 Aug '10

20 Aug '10

Hi guys! Here I am with my troubled mind! I've been looking at this for hours and I can't seem to find an answer. I've actually been dreaming about all this for days! Well... Finally I made it with the list for ON/OFF values! With some modifications on Frank Barknecht's "flipper" I did what I needed... In a way! That's what brings me here! So, here's the thing: When I bang ON it stores a "1" in a table without repeating the index. It looks for a "0" to turn it to "1". When I bang OFF it only bangs one that is already ON. So basically the whole system 1) looks for an available slot to turn on; 2) looks for an unavailable slot to turn off. As I said before it stores this in a table. What I need and can't seem to be able to do is: when the table writes a new value that value can be output through a bang in a corresponding index. Lets say I have a table of 5 indexes. If index 2 changes value from "0" to "1" a bang is triggered. It's so hard to explain... damn it! Hope you can understand! Thanks guys! You're being saviors... Joao Vidigal

2 1

← Newer
1
...
6
7
8
9
10
11
12
...
22
Older →

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