Pd-list July 2015

pd-list@lists.iem.at

67 participants
87 discussions

Re: [PD] [ANN] HOA & Cream Library new releases
by Pierre Guillot 03 Jul '15

03 Jul '15

> I'd be careful exposing the tk canvas api from within Pd. It's a buggy > interface, as evidenced > by the off-by-one errors in the data-structure illustrations of Miller's > book. Hi Jonathan, What do you mean by "exposing the tk canvas api" ? Is it about how I create GUI or about a specific object ? I made a lot of tests on Windows, Mac and Linux and it seems pretty stable. The fact is that I don't draw directly in the pd's canvas for many many reasons. You should have a look at the CICM wrapper. Cheers

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Re: [PD] [ANN] HOA & Cream Library new releases
by Pierre Guillot 02 Jul '15

02 Jul '15

> I had a look at your wrapper code. It is extremely well-organized and readable, btw. > On the one hand, you're giving users/devs a much improved API with which > to create > and maintain GUI externals. I've been porting Pd to a different toolkit > (and completely > away from tcl/tk), so I am intimately familiar with the many, many > reasons you don't > want to use or add to the existing widgetbehavior callbacks. Thanks ! > On the other, your improved API ends in Tk canvas subcommands, and thus > inherits > all the limitations and bugs of Tk canvas. For simple/limited GUI > widgets it's possible to > workaround these problems-- in most cases the external developer can > hide the > problems completely from the end user. But for complex things like a > drawing surface > those bugs and limitations are exposed fairly directly to the end user. I'm totally agree with you about the fact that TK has annoying limitations but I didn't notice any real bug and we can't avoid Tk if we want to be compatible with pd-vanilla (for the moment the only other solution seems to make another distribution like l2ork*). When I call "egraphics_line(g, 0, 0, 10, 10)" for example TK draws a line from 0, 0 to 10, 10 and it works for every other shapes. I think that GUIs like hoa.map or hoa.3d.scope~ are quite complicated and I didn't encounter any big difficulty during the implementation (perhaps because I convert almost every shape to a bezier curve...). * I tried to mix Tk with Juce but on Mac we can't retrieves the window's pointer from tk so this is useless. > Practically speaking, what is Pierre's alternative? What tradeoffs for > user and developer are there in choosing a GUI alternative? For devs, I'll try to explain quickly what the CICM Wrapper does for graphics and interactions. - Instead of drawing directly in the canvas, it creates a tk window widget and draws inside this "fake" window (that allows to clip the shapes within the boundaries of the box and to bind the object to all the interactions). - When you want to draw something, you have to create a layer that will be saved until you invalidate it (to avoid to recompute every time). - When you draw a shape (line , curve, rectangle, circle, oval, etc.) it is converted to a bezier curve (that allows to apply matrix transformations for example). - All the interface is in C, all the layers are translated to Tk instruction when they should be drawn. So if you want to change the Tk graphic API, you don't have to change the whole interface but only the "translation" function (and some other small stuffs like popup). In fact, there're a lot of stuffs in the Wrapper but I think that the code is well documented : http://cicm.github.io/CicmWrapper/. And for user, you should explore Cream and look at c.help.gui.pd subpatch in the help files :) Cheers

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Re: [PD] Pd-list Digest, Vol 124, Issue 4
by fz＠mur.at 02 Jul '15

02 Jul '15

Dear IOhannes, thanks for your answers. I am on Win8 and Pd-extended.- So, if I start my patch the firt rendering option is directshow and the second quicktime. I tried out the messages: [open $1 RGBA DirectShow( and [open $1 * DirectShow( The videos are playing, but with every video on my playlist I get thies error "Unable to add SampleFilter 262701". Hm, with this messages - I have no errors use: [open $1 1( or [open $1( best, fränk > ------------------------------ > > Message: 4 > Date: Wed, 01 Jul 2015 21:58:39 +0200 > From: IOhannes m zmölnig <zmoelnig(a)iem.at> > To: pd-list(a)lists.iem.at > Subject: Re: [PD] How to force gem pix_film to use DirectShow > Message-ID: <5594466F.6080201(a)iem.at> > Content-Type: text/plain; charset="utf-8" > > On 07/01/2015 09:41 PM, fz(a)mur.at wrote: >> Hi, >> I found a lot of info by searching but I want to be sure.- Do I force >> gem pix_film to use DirectShow with a message "open $1 1" ? > > this will ask [pix_film] to use the 2nd available backend as first choice. > whether this is DirectShow or SchmozzelMozz depends on your installation. > > a more consistent way is to use symbolic names, as in: > [open $1 RGBA DirectShow( > (the second argument "RGBA" is the colorspace you request; if you don't > care about a specific colorspace, you could also use "*" instead and > ignore the error message...) > > > but all these messages, only tell Gem to try the given backend as first > choice, and - if that backend fails to open the file - will try the > others as well. so it's not really *forcing* a specific backend. > > the only way to force the use of DirectShow is to remove all the other > backends from the filesystem (prior to loading Gem), so that Pd/Gem > cannot find and thus cannot use them: in the same directory as Gem.dll, > you should find a couple of gem_film*.dll files. if you remove all of > them but gem_filmDS.dll, you can make sure that a film is only ever > opened with DirectShow (or not at all). if you remove all gem_film*.dll > files, you can make sure that no film can be opened. > > gfamdsr > IOhannes > >

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How to force gem pix_film to use DirectShow
by fz＠mur.at 01 Jul '15

01 Jul '15

Hi, I found a lot of info by searching but I want to be sure.- Do I force gem pix_film to use DirectShow with a message "open $1 1" ? thanks fränk ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

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Cream & HEA libs via Deken request [was] Re: Pd-list Digest, Vol 123, Issue 121
by Julian Brooks 01 Jul '15

01 Jul '15

2nd'd On 1 July 2015 at 01:05, Dan Wilcox <danomatika(a)gmail.com> wrote: > Sounds good Pierre. I’d recommend checking out the deken externals manager > Chris McCormick, et al have been working on: > https://github.com/pure-data/deken > > It would be really cool to be able to easily install HOA and Cream with > deken. > > -------- > Dan Wilcox > @danomatika <https://twitter.com/danomatika> > danomatika.com > robotcowboy.com > > On Jun 30, 2015, at 5:25 PM, pd-list-request(a)lists.iem.at wrote: > > *From: *Pierre Guillot <guillotpierre6(a)gmail.com> > *Subject: **[PD] [ANN] HOA & Cream Library new releases* > *Date: *June 30, 2015 at 6:37:51 AM EDT > *To: *PD List <pd-list(a)iem.at> > > > > _______________________________________________ > Pd-list(a)lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > >

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[ANN] HOA & Cream Library new releases
by Pierre Guillot 01 Jul '15

01 Jul '15

Hello, (Apologies for cross-posting) The CICM is pleased to announce the new releases of the Cream Library (v0.4) and the HOA library (v2.2) for Pure Data. The HOA library (High Order Ambisonics) is a collection of C++ classes destined to sound spatialization. The HOA library allows musicians and composers to synthesize, transform and render sound fields in a creative and artistic way. It aims facilitating the understanding and the appropriation of key concepts of Ambisonics. It offers original processings like diffuse sound field synthesis, perspective distortion or spatial filtering and new graphical interfaces. The library is available for Pure Data, Max, openFramework, FAUST and as VST plugins. The HOA library is free, open-source and made available by the CICM, the centre of research on musical composition and computer science of the University Paris 8. The project has been developed as a part of the LABEX Arts H2H at the MSH Paris-Nord and the plate-forme Arts-Sciences-Technologies. Some updates and new features : new binaural rendering, new tutorials, exchanger for Ambisonics data format, optimizations, etc. Informations and downloads : http://www.mshparisnord.fr/hoalibrary/en/ The Cream library is a set of graphical objects for Pure Data that aims to improve user interaction. https://github.com/CICM/CreamLibrary/releases For developers, the CICM Wrapper has been updated and offers a new documentation with examples. For your information, the CICM Wrapper is a C/TK library that aims to facilitate the creation of objects for Pure Data. One of the main axis is the creation of graphical user interfaces. It also facilitates the implementation of dynamics multichannels processings and it improves the compatibility with Max. http://cicm.github.io/CicmWrapper/ Feedback and comments are welcome. The CICM team. Bonjour, (Avec nos excuses pour les envois multiples) Le CICM est heureux d'annoncer la nouvelle version de la bibliothèque Cream (v0.4) et de la bibliothèque HOA (v2.2). La bibliothèque HOA (High Order Ambisonics) est une collection de classes C++ destinées à la spatialisation du son. La bibliothèque HOA permet aux musiciens et compositeurs de synthétiser, transformer et restituer des champs sonores de façon créative et artistique. Elle vise à faciliter la compréhension et l'appropriation des concepts clés de l'Ambisonie. Elle propose des traitements originaux comme la synthèse de champ diffus, la distorsion de perspective ou le filtrage spatial ainsi que de nouvelles interfaces graphiques. La bibliothèque est disponible pour Pure Data, Max, openFramework, FAUST et sous forme de plugins VST. La bibliothèque HOA est gratuite, open-source et mise à disposition par le CICM, le Centre de recherche Informatique et Création Musicale de l'Université Paris 8. Le projet a été développé dans le cadre du Labex Arts H2H à la MSH Paris-Nord et la Plate-forme Arts-Sciences-Technologies. Mise à jour et nouvelles fonctionnalités : nouveau rendu binaural, nouveau tutoriels, convertisseur de formats Ambisonics, optimisations, etc. Informations et téléchargements : http://www.mshparisnord.fr/hoalibrary/ La bibliothèque Cream est un ensemble d'objects graphiques pour Pure Data qui vise à améliorer les interactions utilisateur. https://github.com/CICM/CreamLibrary/releases Pour les développeurs, le CICM Wrapper a été mis à jour et possède désormais une nouvelle documentation avec des exemples. Pour information, le CICM Wrapper est une bibliothèque en C/TK qui vise à faciliter la création d'objects pour Pure Data. Un des principaux axes est la création d'interfaces graphiques. Il facilite aussi la mise en œuvre de traitements dynamiques et multicanaux et améliore la compatibilité avec Max. http://cicm.github.io/CicmWrapper/ Retours et commentaires sont les bienvenus. L'équipe du CICM.

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Re: [PD] Pd-list Digest, Vol 123, Issue 121
by Dan Wilcox 01 Jul '15

01 Jul '15

Sounds good Pierre. I’d recommend checking out the deken externals manager Chris McCormick, et al have been working on: https://github.com/pure-data/deken <https://github.com/pure-data/deken> It would be really cool to be able to easily install HOA and Cream with deken. -------- Dan Wilcox @danomatika <https://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/> > On Jun 30, 2015, at 5:25 PM, pd-list-request(a)lists.iem.at wrote: > > From: Pierre Guillot <guillotpierre6(a)gmail.com <mailto:guillotpierre6@gmail.com>> > Subject: [PD] [ANN] HOA & Cream Library new releases > Date: June 30, 2015 at 6:37:51 AM EDT > To: PD List <pd-list(a)iem.at <mailto:pd-list@iem.at>>

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Pd-list July 2015