Pd-list September 2016

pd-list@lists.iem.at

62 participants
87 discussions

OSX devs to work on GEM updates?
by Dan Wilcox 18 Sep '16

18 Sep '16

I started digging into adapting the OpenFrameworks AVFoundation video classes for use with GEM a while ago (2 years?) but have been occupied with other things since. The fact is that I don;t use GEM for any of my creative work, so it’s relatively low on my list. Are there any OSX devs who can pick this up? This is a *huge* issue with GEM on OSX as it means finally being able to build 64bit and removing the use of deprecated frameworks which are *highly likely* to be dropped in macOS Sierra which comes out in a week or so. Again, it’s not like I didn’t/don’t want to do this work but I frankly have way too much other stuff to do, especially before Pd con. -------- Dan Wilcox @danomatika <https://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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gtemplate bug
by Jonathan Wilkes 18 Sep '16

18 Sep '16

Hi Miller, In g_template.c: https://sourceforge.net/p/pure-data/pure-data/ci/master/tree/src/g_template… Line 591 should bex->x_template = t = template_new(sym, argc, argv); Otherwise x->x_template ends up pointing to freed memory. -Jonathan

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Re: [PD] connecting pd-gui to pd
by Dan Wilcox 16 Sep '16

16 Sep '16

I brought your changes into the “gui_control” branch manually after I accidentally closed the PR a while ago: https://github.com/libpd/libpd/tree/gui_control <https://github.com/libpd/libpd/tree/gui_control> I haven’t merged yet as I was waiting for people to double check / test. -------- Dan Wilcox @danomatika <https://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/> > On Sep 15, 2016, at 4:00 AM, pd-list-request(a)lists.iem.at wrote: > > I believe libpd already has this capability (I've been using it but am not > sure my changes made it upstream).

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[Gem] Using [text2d] in single buffer mode
by Roman Haefeli 16 Sep '16

16 Sep '16

Hey all I'm working on patch that displays a lot (30 lines, 76 chars per line) of text in a Gem window using [text2d]. I observed that CPU usage increases proportional to the string length sent to [text2d]. It appears to me that [text2d] renders the given string for each frame. The fact that frame rate and CPU usage are proportional, too, confirms this assumption. Now, I'd like to make my patch less CPU hungry and thought about switching to single buffer mode, since it would be sufficient to update the gemwin only when the text changes, which is far less often than running gemwin at any fixed frame rate. Now my real problem begins. Whenever the text/string changes, I clear the buffer, send the string to [text2d] and bang the [gemhead], so that the display is refreshed (in this exact order). However, when I perform this steps in zero logical time, I get a blank screen. Only when I delay the bang to [gemhead] by a few milliseconds, I get text in the gemwin. I just noticed now that this is not related to [text2d] at all, but seems an issue between [gemwin] and [gemhead]. [gemhead] can't render a certain amount of time after [gemwin] has been cleared. Is there a way to know when [gemhead] is ready to render (or when [gemwin] has finished clearing)? Roman

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[Gem] fork pixes
by Peter P. 15 Sep '16

15 Sep '16

Hi list, I am puzzled by a simple problem in Gem but am unable to find a solution from Gem's documentation: Playing back anim-1.mov from one pix_film object and forking the pix-stream using [t a a] in order to be able to crossfade between its color and greyscale version, I am getting a grey picture in the unmodified branch as soon as the right outlet of [t a a] is connected to [pix_2grey] inlet, even with that object's outlet being left unconnected. (see attached patch) I don't understand why this happens, I have checked all colorspaces with [pix_info] and they are alike (RGBA). Is there a better way to crossfade between a color image and its grayscaled version? Thanks for all ideas! Peter

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connecting pd-gui to pd
by Jeremiah Rose 15 Sep '16

15 Sep '16

Hi there, I've already asked this question over at the pdpatchrepo forums but I get the feeling you guys really know your stuff so I wanted to ask here too. Here's the situation - Computer 1: a raspberry pi with no screen, keyboard or mouse that automatically runs a headless instance of pure data when it boots up: pd -nogui mypatch.pd Computer 2: my laptop. I want to start the GUI separetly and connect it to the existing pd instance on the raspberry pi so that I can program the patch, alter it, save it, and watch it in action. I believe the command should be something like: pd-gui HOST:PORT But I can't seem to make it work and there is no documentation to speak of anywhere. Can anyone help? I'd be happy to document this on the pd wiki and forums once I figure it out, as there currently seems to be no reference.

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VST plugin host
by Vincent Vanbesien (DIEHCO) 14 Sep '16

14 Sep '16

Hello, I would like to use pd to host a VST instrument. Then I expect that the midi keyboard can trigger notes. After that I will also need to send DMX command for lights from the same midi notes. I hope that puredata is the correct tool. I found the thomas's vst~ description : http://puredata.info/Members/thomas/vst I try first to use the vst~ object from binary (windows) to avoid installing any SDK. To work around an error message concerning loading loadbang, I installed the vanilla 0.43 instead of the newest 0.47. (I believe I need to compile vst / flext / pd to use the latest). I would like to check the aim of the patch vst~-help.pd I can load my vst instrument with the patch, the display edit window checkbox shows the vst instrument GUI. My question concerns the noise~ in input, can I replace it by a midi notein object ? The element named "pd midi" in the patch seems to generate midi and not to receive, is that right ? With best regards, Vincent Vanbesien PS : This is the plain text version of my previous e-mail

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Re: [PD] problem with send~ instead of patchcord
by jlistshit 14 Sep '16

14 Sep '16

Use throw~ and catch~ instead of send~ and receive~. jayrope On 12 Sep 2016, at 23:36, pd-list-request(a)lists.iem.at wrote: > i wanted to do the same thing with > send~/receive~ pairs in order

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loading iemlib
by José Rafael Subía Valdez 14 Sep '16

14 Sep '16

Hello list, I have tried to load [init] from iemlib with no luck. iemlib now comes in this "d_fat" extension, so i have tried loading it like I do with zexy by creating a [declare -lib iemlib], the problem is that the version that deken downloads comes with 4 d_fat files. I have tried them all with no luck (screenshot attached). Any help with this is deeply appreciated. cheers -- José Rafael Subía Valdez www.jrsv.net

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[list fromsymbol] and non-breaking spaces
by Liam Goodacre 13 Sep '16

13 Sep '16

When I put a symbol containing a non-breaking space ( ASCII code 160) through [list fromsymbol], it generates a ghost character, 194, which is the ASCII code for Â. Is this a bug, or is there a reason for it? See the attachment for a quick demonstration of.

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Pd-list September 2016