Re: [PD] Video problems using GEM

[John Harrison]

I wonder if it would work better if you ran 2 Pd instances, loaded the pics
in one and ran the movie in the other, then shared the pics to the movie
instance with [pix_share_read] and [pix_share_write]?


On Thu, Apr 17, 2014 at 10:51 AM, Claire O'Connor  wrote:

> Hi Chris,
>
> Thanks for your help. Converting the videos to those formats definitely
> helped. I am using Pure Data in a project which is attempting to create a
> slideshow. I am also using pix_image in conjunction with pix_film for this
> project and everytime I have a video playing and load a picture during that
> time, the video playback slows down. Have you any ideas on how to prevent
> this? I am using JPEGs taken on the same camera as mentioned above (Canon
> Ixus 127 HS) and they are between 3MB and 6MB each. The most images I would
> have banged to load at once is three. Here is some more information on
> those images.
>
> Any thoughts you might have would be a great help. Thank you!
>
>
> On 17 April 2014 14:44, Chris Clepper  wrote:
>
>> The issue is with the h.264 codec.  On the Mac, compress them as 'Apple
>> Intermediate Codec' or ProRes (which comes with what's left of Final Cut
>> 'Pro').  The files will be much larger in size on the drive but play back
>> much better.  When I wrote the OSX pix_film/movie code long ago, it was
>> only intended to play back intraframe codecs like the JPEG based ones and
>> not MPEG which are consumer delivery formats.
>>
>> You should also set the gemwin to render at least 30 frames per second
>> and for smoothest playback use 60fps which is the refresh rate of an LCD.
>>  I think the default is still 15 or 20fps?
>>
>>
>> On Thu, Apr 17, 2014 at 7:11 AM, Claire O'Connor  wrote:
>>
>>> Hi,
>>>
>>> I am currently working on a project which uses films with GEM. However,
>>> the films are very glitchy and play very slowly when they load up. I was
>>> wondering if anyone knew anything about how to fix this problem?
>>>
>>> The videos used were taken on a Canon Ixus 127 HS and last between 10
>>> and 15 seconds. They are .MOV files and I even tried exporting them as
>>> smaller files but it didn't change their glitchiness. Here is an example of
>>> the file before and after the export with the original file being 80.8MB
>>> and the exported file being 5.9MB. Even with a drastic change in size, the
>>> difference in playback did not change much at all.
>>>
>>> Any thoughts and ideas welcome. Thanks!
>>>
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Re: [PD] GEM noobie: I don't understand this glsl thing... but I need it!

[John Harrison]

ExtendedViewToolkit does photo stitching. Maybe it does what you want or
can give you some ideas:
http://puredata.info/Members/Weitsicht/extended-view-toolkit/




On Mon, Sep 9, 2013 at 4:21 PM, Dan Wilcox  wrote:

> glsl is the open gl shader language ... basically a simple C-like language
> for doing graphics stuff on the GPU, see
> https://en.wikipedia.org/wiki/GLSL
>
> Also, see the OpenGL Orange 
> Book
>
> On Sep 9, 2013, at 5:01 PM, pd-list-requ...@iem.at wrote:
>
> *From: *David Schaffer 
>  *Subject: **[PD] GEM noobie: I don't understand this glsl thing... but I
> need it!*
>  *Date: *September 9, 2013 4:24:08 PM EDT
> *To: *pd list 
>
>
>  Hi there,
>
>   I'm in the process of writing my own photo
> stitching/assembling abstraction but I'm having a lot of trouble
> understanding what the glsl object do... I've been able to implement an
> edge blurring function by copy/pasting the glsl code from the
> "panoramique.pd" patch and the "panoramique.vert" and "panoramique.frag"
> files to the right places, but it only blurs vertical edges. Can anyone
> tell me how I could blur horizontal edges too? and... what this glsl thing
> is all about. I'm no code expert, so please keep it understandable (!)
>
> Thanks a lot,
>
> David
>
> http://www.flickr.com/photos/schafferdavid/
> https://soundcloud.com/schafferdavid
>
>
>  
> Dan Wilcox
> @danomatika
> danomatika.com
> robotcowboy.com
>
>
>
>
>
>
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Re: [PD] Gem create many cubes

[John Harrison]

use [separator] to use absolute instead of relative positions.

On Fri, Aug 2, 2013 at 3:40 PM,  wrote:

> Wow, thank you very much! I still have a problem or two.
>
> I create a [coll] that looks like this:
> 1, -4 -4 -1.2926 0.776471 0.878431 0.156863;
> 2, -3.88759 -4 -0.8304 0.984314 1 0.0509804;
> 3, -3.77518 -4 -1.42148 1 1 0.698039;
> 4, -3.66276 -4 -1.0836 1 1 0.917647;
> 5, -3.55035 -4 -0.1944 0.811765 0.780392 0.470588;
> (idx, x, y, z, r, g, b).
>
> Now the way gemlist / until works the the translationXYZ is apply to the
> last cube created i think and not the absolute position.
>
> What would be the best solution when using a [coll] filled with positions
> - colors (around 2000 - 5000)?
>
>
>
>
>
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Re: [PD] Gem create many cubes

[John Harrison]

Here's an example I made of color using [gemlist] by hacking up the
[gemlist] help patch. I think this is the method Dan was talking about.
Hopefully it helps illustrate the idea...

-John

On Fri, Aug 2, 2013 at 4:57 AM, Alexandros Drymonitis wrote:

> There's a recursion tutorial by Claude Heiland-Allen that uses such
> techniques. Maybe it's included in the browser, check it out.
>
>
> On 2 Αυγ 2013, at 12:07, Miguel Eduardo Venegas Monroy <
> miguelvmon...@gmail.com> wrote:
>
> i dont undertand.
> ;S
>
>
> 2013/8/2 Alexandros Drymonitis 
>
>> Isn't [repeat] along with [separator] the solution for such things?
>> Maybe something like this could work:
>>
>> [gemhead]
>> |
>> [t a a]
>> |   |
>> |   [cube]
>> |
>> [separator]
>> |
>> [repeat]
>> |
>> [color]
>> |
>> [translate]
>>
>> Incrementing the number in the left inlet of [repeat] should create a new
>> copy where you can change its parameters (color, position,etc.), if i'm not
>> mistaken...
>>
>> maybe you need a separator before [cube] as well, not sure..
>>
>> On 2 Αυγ 2013, at 11:16, pured...@11h11.com wrote:
>>
>> >> maybe [gemlist] will help you?
>> >
>> > What if i need specific colors for each cubes?
>> >
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gemlist-color.pd
Description: Binary data
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Re: [PD] pmpd // call for English translation help

[John Harrison]

  
  
I lost track of this thread. Did the help with translations work
out? If not, I'm glad to do it. My thought is that I could help with
grammar issues.

This is the latest version of pmpd?

http://pure-data.svn.sourceforge.net/viewvc/pure-data/trunk/externals/pmpd/

-John

On 05/11/2013 10:40 AM, Cyrille Henry
  wrote:

there
  more to come after!
  
  
  ;-)
  
  c
  
  
  Le 11/05/2013 17:36, Marco Donnarumma a écrit :
  
  Hey,

I'm at the airport coming back from LAC con so can't check the
attachment but from what I remember its not too much to correct.


Ill be happy to do it!


Sent from a phone, please forgive brevity and typos.


On 11 May 2013 16:59, "Cyrille Henry" <c...@chnry.net
> wrote:


    hello Marco,


    do you think you can correct the old pmpd help file?

    (see attachment)

    if there are to much, just do the most important one.


    thanks again

    Cheers

    c



    Le 10/05/2013 12:07, Marco Donnarumma a écrit :


    Hey,


    I'm also up for helping.

    Don't know French, but ready to translate "Cyrille
French" and help with help files and examples. :)


    Been spending some good amount of time on the previous
pmpd release.


    M





 2. Re: pmpd // call for English translation
help (Julian Brooks)


 Hi Cyrille,


 I'd be up for this but it will have to be from
mid-June for me.


 If that's any use then absolument. I have to say my
French is pretty dodgy

 though my Cyrille English is pretty good after
having spent so much time

 poring over the pmpd help files:)


 Julian


  
  
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Re: [PD] pix_multiblob and tracking multiple objects

[John Harrison]

OK I guess I misunderstood that the original poster was wanting to do all
of that. I know the latest CCV supports multiple cameras for some sort of
"big picture" so it may actually do what you are asking but I don't know
the details so if you say it doesn't support all of that I'll go with your
claim. I'm sure the OpenCV solutions are great and perhaps in the future
I'll need to learn more about them as my own needs warrant.

I haven't had a problem with the drivers on my "cheap" ps3eye V4L2 webcam
FWIW. I've also done tracking at 120-125fps 320x240 with 3 said webcams and
"buggy" drivers, all running simultaneously on one machine. No problems.

John


On Thu, Apr 18, 2013 at 9:23 AM, Antoine Villeret <
antoine.ville...@gmail.com> wrote:

> how is it possible to use several cameras, correct perspective on each,
> make a big picture with blending and then tracking on that big picture with
> CCV ?
> this have been done with Pd and pix_opencv and works great (at least if
> you're not using a cheap V4L2 cam with buggy drivers)
>
> --
> do it yourself
> http://antoine.villeret.free.fr
>
>
> 2013/4/18 John Harrison 
>
>> FWIW I had just the opposite experience with CCV. CCV has built-in
>> background adaptive subtraction, smoothing, highpass filter, gain,
>> contrast, etc. all tweakable. It also tracks blobs uniquely as the original
>> poster is wanting, which is why I thought of it for their needs. I used
>> [pix_blobtracker] before and it works OK but I found CCV to be overall a
>> more robust solution than anything I could efficiently come up with.
>>
>> I use CCV at 60fps 640x480 w/ a ps3eye on ubuntu 10.04 64 bit and the CPU
>> load is not significant and reduced from my original Pd-only solution. My
>> CCV/Pd patch has been on exhibit 24/7 for 5 months now without issue so it
>> also seems stable. I use CCV version 1.4. I also used CCV on another
>> exhibit with a Win7 64 bit system and that ran for months as well without
>> issue. That might have been version 1.5 but I don't remember for sure. I
>> also know there's a newer version of CCV supporting multiple cameras now,
>> and I have not had experience with this.
>>
>> Maybe I'm not understanding the flexibility you are looking for that CCV
>> is not offering you. All I can imagine is that you can't find a way to
>> change the order of the filtering. I'm not sure that's something you'll
>> find you actually need though to improve the result of the blob tracking.
>>
>> Just my $.02.
>>
>> -John
>>
>> On Thu, Apr 18, 2013 at 8:42 AM, Antoine Villeret <
>> antoine.ville...@gmail.com> wrote:
>>
>>> i tried CCV one time but i had some driver and performance issues
>>> moreover, i can't find an easy way to tune the processing chain
>>> pd is more flexible but, i agree, could be harder
>>>
>>> --
>>> do it yourself
>>> http://antoine.villeret.free.fr
>>>
>>>
>>> 2013/4/18 John Harrison 
>>>
>>>> I'm not totally clear on the big picture here but it could be you might
>>>> save yourself a lot of time and effort doing your blob tracking with
>>>> Community Core Vision (CCV) then sending the blob data to Pd through OSC.
>>>> After initially doing my blob tracking in Pd only (which did work), I
>>>> switched to this CCV --> Pd approach and got better results because of all
>>>> of the built-in filtering etc. that is provided with that open-source
>>>> cross-platform software.
>>>>
>>>> -John
>>>>
>>>>
>>>> On Thu, Apr 18, 2013 at 5:22 AM, Ska Frenz  wrote:
>>>>
>>>>> Hi, thank you for the suggestions, I'll check openCv. Can you explain
>>>>> how to use "morphological filters" to clear up the noise in the image? Are
>>>>> there examples around? Also, could you please explain me better what do 
>>>>> you
>>>>> mean with "adaptive background subtraction method"?
>>>>>
>>>>> Thank you for your time :)
>>>>>
>>>>> francesco
>>>>>
>>>>>
>>>>> 2013/4/17 Antoine Villeret 
>>>>>
>>>>>> hi,
>>>>>>
>>>>>> the segmentation method (how you extract what is your interest from
>>>>>> the rest of the image) is very critical in video tracking
>>>>>> background subtraction is a basic way to extr

Re: [PD] pix_multiblob and tracking multiple objects

[John Harrison]

FWIW I had just the opposite experience with CCV. CCV has built-in
background adaptive subtraction, smoothing, highpass filter, gain,
contrast, etc. all tweakable. It also tracks blobs uniquely as the original
poster is wanting, which is why I thought of it for their needs. I used
[pix_blobtracker] before and it works OK but I found CCV to be overall a
more robust solution than anything I could efficiently come up with.

I use CCV at 60fps 640x480 w/ a ps3eye on ubuntu 10.04 64 bit and the CPU
load is not significant and reduced from my original Pd-only solution. My
CCV/Pd patch has been on exhibit 24/7 for 5 months now without issue so it
also seems stable. I use CCV version 1.4. I also used CCV on another
exhibit with a Win7 64 bit system and that ran for months as well without
issue. That might have been version 1.5 but I don't remember for sure. I
also know there's a newer version of CCV supporting multiple cameras now,
and I have not had experience with this.

Maybe I'm not understanding the flexibility you are looking for that CCV is
not offering you. All I can imagine is that you can't find a way to change
the order of the filtering. I'm not sure that's something you'll find you
actually need though to improve the result of the blob tracking.

Just my $.02.

-John

On Thu, Apr 18, 2013 at 8:42 AM, Antoine Villeret <
antoine.ville...@gmail.com> wrote:

> i tried CCV one time but i had some driver and performance issues
> moreover, i can't find an easy way to tune the processing chain
> pd is more flexible but, i agree, could be harder
>
> --
> do it yourself
> http://antoine.villeret.free.fr
>
>
> 2013/4/18 John Harrison 
>
>> I'm not totally clear on the big picture here but it could be you might
>> save yourself a lot of time and effort doing your blob tracking with
>> Community Core Vision (CCV) then sending the blob data to Pd through OSC.
>> After initially doing my blob tracking in Pd only (which did work), I
>> switched to this CCV --> Pd approach and got better results because of all
>> of the built-in filtering etc. that is provided with that open-source
>> cross-platform software.
>>
>> -John
>>
>>
>> On Thu, Apr 18, 2013 at 5:22 AM, Ska Frenz  wrote:
>>
>>> Hi, thank you for the suggestions, I'll check openCv. Can you explain
>>> how to use "morphological filters" to clear up the noise in the image? Are
>>> there examples around? Also, could you please explain me better what do you
>>> mean with "adaptive background subtraction method"?
>>>
>>> Thank you for your time :)
>>>
>>> francesco
>>>
>>>
>>> 2013/4/17 Antoine Villeret 
>>>
>>>> hi,
>>>>
>>>> the segmentation method (how you extract what is your interest from the
>>>> rest of the image) is very critical in video tracking
>>>> background subtraction is a basic way to extract blob and it works only
>>>> in certain conditions of light (if you want to track something outdoor, you
>>>> should use an adaptive background subtraction method)
>>>> moreover, there is no general method to do video tracking, it depends
>>>> on what you want to track and how it is filmed
>>>>
>>>> so, the first thing is to have a good image, with not too much lighting
>>>> changes, good contrast between background and features to track
>>>> then you can start thinking about segmentation, and the
>>>> segmentation accuracy depends on the quality of the video
>>>> you may need to do something more than just background subtraction, for
>>>> example, you could apply some morphological filter to remove noise
>>>> after that, you can start tracking
>>>> you could also apply a threshold on the blob size to not track very
>>>> small blob
>>>> blob of interest are often surrounded by very small blobs due to
>>>> segmentation noise
>>>>
>>>> but you can have a look at pix_opencv objects,
>>>> there is [pix_opencv_blobtrack] which implements a whole processing
>>>> chain, including foreground extractor, blob detector, blob tracker and
>>>> follower
>>>> I'm not sure it's included in pd-extended, but you can find some
>>>> binaries on build server
>>>>
>>>> hope this help
>>>>
>>>> antoine
>>>>
>>>>
>>>> --
>>>> do it yourself
>>>> http://antoine.villeret.free.fr
>>>>
>>>>
>>>> 2013/4/17 Ska Frenz 

Re: [PD] pix_multiblob and tracking multiple objects

[John Harrison]

I'm not totally clear on the big picture here but it could be you might
save yourself a lot of time and effort doing your blob tracking with
Community Core Vision (CCV) then sending the blob data to Pd through OSC.
After initially doing my blob tracking in Pd only (which did work), I
switched to this CCV --> Pd approach and got better results because of all
of the built-in filtering etc. that is provided with that open-source
cross-platform software.

-John

On Thu, Apr 18, 2013 at 5:22 AM, Ska Frenz  wrote:

> Hi, thank you for the suggestions, I'll check openCv. Can you explain how
> to use "morphological filters" to clear up the noise in the image? Are
> there examples around? Also, could you please explain me better what do you
> mean with "adaptive background subtraction method"?
>
> Thank you for your time :)
>
> francesco
>
>
> 2013/4/17 Antoine Villeret 
>
>> hi,
>>
>> the segmentation method (how you extract what is your interest from the
>> rest of the image) is very critical in video tracking
>> background subtraction is a basic way to extract blob and it works only
>> in certain conditions of light (if you want to track something outdoor, you
>> should use an adaptive background subtraction method)
>> moreover, there is no general method to do video tracking, it depends on
>> what you want to track and how it is filmed
>>
>> so, the first thing is to have a good image, with not too much lighting
>> changes, good contrast between background and features to track
>> then you can start thinking about segmentation, and the
>> segmentation accuracy depends on the quality of the video
>> you may need to do something more than just background subtraction, for
>> example, you could apply some morphological filter to remove noise
>> after that, you can start tracking
>> you could also apply a threshold on the blob size to not track very small
>> blob
>> blob of interest are often surrounded by very small blobs due to
>> segmentation noise
>>
>> but you can have a look at pix_opencv objects,
>> there is [pix_opencv_blobtrack] which implements a whole processing
>> chain, including foreground extractor, blob detector, blob tracker and
>> follower
>> I'm not sure it's included in pd-extended, but you can find some binaries
>> on build server
>>
>> hope this help
>>
>> antoine
>>
>>
>> --
>> do it yourself
>> http://antoine.villeret.free.fr
>>
>>
>> 2013/4/17 Ska Frenz 
>>
>>>  Hi everyone, this is my first time on the pd-list so I hope I won't do
>>> anything wrong.
>>> I'm writing here to get some help about pd tracking objects
>>> (pix_blob..). I'm using the background subtraction method, to track objects
>>> and I need help to understand how I can track multiple objects with
>>> multiples different blobs. I'm trying the pix_multiblob and yes, it show 2
>>> blobs..but they track the same object. Then basically I do not understand
>>> how can I make the first blob to follow just one object for all the time
>>> that specific object is inside the webcam rectangle, and the second blob to
>>> track another separate object. I cannot find any material that clearly
>>> talks about this.I attached the patch I'm working on. I'd love to see some
>>> well-explained examples if you know where to get them.
>>> Thank you very much for your help :)
>>>
>>> Francesco
>>>
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Re: [PD] gemlist into gemframebuffer?

[John Harrison]

As I continue my conversation with myself. :-) I realize that the solution
I posted doesn't work for the current problem I have:

I have values coming in for where to put the spheres which come in between
frames I am rendering. I don't have all of the values at once. Currently
every time a new value comes in, I bang the gemlist. To do this without
gemlist I need a way to store a gemstate/gpointer until the next value
comes in. I can't find any way to store such a beast since it isn't
supported by [pack] and there is no variable type for it. Is there some way
to store the gpointer that I am missing?

On Sat, Mar 23, 2013 at 2:16 PM, John Harrison
wrote:

> Solved it by making a loop instead of using gemlist. Sorry for the noise.
> See attached for a demo of the solution if you are curious or if you might
> have a better/alternative solution.
>
> -John
>
>
> On Sat, Mar 23, 2013 at 11:47 AM, John Harrison <
> john.harri...@alum.mit.edu> wrote:
>
>> I have about 100 spheres I generate with a gemlist which currently
>> display into a gem window. I'd like to instead put them into a
>> gemframebuffer. Is there a way to do this? It seems that gemlist is
>> hardcoded to display in the window? I can think of workarounds i.e. make
>> 100 abstractions of my sphere but that seems clumsy and perhaps
>> inefficient.
>
>
>
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Re: [PD] gemlist into gemframebuffer?

[John Harrison]

Solved it by making a loop instead of using gemlist. Sorry for the noise.
See attached for a demo of the solution if you are curious or if you might
have a better/alternative solution.

-John

On Sat, Mar 23, 2013 at 11:47 AM, John Harrison
wrote:

> I have about 100 spheres I generate with a gemlist which currently display
> into a gem window. I'd like to instead put them into a gemframebuffer. Is
> there a way to do this? It seems that gemlist is hardcoded to display in
> the window? I can think of workarounds i.e. make 100 abstractions of my
> sphere but that seems clumsy and perhaps inefficient.


multiple spheres in framebuffer.pd
Description: Binary data
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[PD] gemlist into gemframebuffer?

[John Harrison]

I have about 100 spheres I generate with a gemlist which currently display
into a gem window. I'd like to instead put them into a gemframebuffer. Is
there a way to do this? It seems that gemlist is hardcoded to display in
the window? I can think of workarounds i.e. make 100 abstractions of my
sphere but that seems clumsy and perhaps inefficient.
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Re: [PD] Gem and audio pause/clicks

[John Harrison]

Based on what you said, one solution would be to run 2 Pd instances. Have
one only generate the audio. Manipulate it using the 2nd patch (the one you
will directly manipulate) using netsend/netreceive. This works especially
well if your CPU has more than one core. It could be [pd~] could address
your problem as well, but I haven't had as good luck with that approach. Or
maybe if you made the audio latency high enough it would help, if latency
is not an issue for you.

On Fri, Mar 15, 2013 at 11:09 PM, Jm Jones  wrote:

> Hi, im back learning pd/max. Im playing with both Pd-extended and Max
> 6, I know that i must choose one, at least in this stage : )
> Im interested in midi control but also in  visuals, VJing and audio
> visual interaction. Currently im trying the simplest idea that crossed
> my mind, controlling some effects  in gem with data from a peakamp. I
> have glitches and the  audio pauses when i move the windows (specially
> the Gem window), is this normal? if i set up  an environment with 2
> screens (the case in a  gig) can i freely manipulate the patches
> without fear?
> thanks
>
> --
> Juan Manuel Jones
>
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Re: [PD] [PD-announce] netpd 2.1

[John Harrison]

This is fantastic news!

I can't wait to try it the new version! Are the jams happening Thursday 
21:00 GMT as mentioned on the website?


On 03/10/2013 07:12 PM, Roman Haefeli wrote:

Hi all

After almost a year not having announced version 2.0 of netpd, version
2.1 is released now. netpd 2.x is complete rewrite of the netpd that you
may have known from several years ago.

http://www.netpd.org/Download


  
netpd - a Collaborative Realtime Networked Music Making Environment

---

netpd allows many users to have a realtime jam sessions with each other,
connected over the net.
Users might contribute their own netpd-ized patches a.k.a. instruments
or use pre-existing ones. The set of patches, as well as the state of
each is synchronized between clients in order to provide identical
experience for every connected user.

netpd was designed with music in mind, but it might serve well also
other purposes, where realtime state synchronization is a requirement.


release notes
-

2.1
   * Improved reliability of finding a sync peer (breaks compatibility
 with v2.0)
   * Added non-blocking until [netpd-nb-until]
   * Turning DSP off on dynamic creation is now a configurable option
 (see chat's preferences)
   * Prevent errors when checking for non-existing files (adds more
 dependencies, though)
   * Automatically load unpatch by cmdline option (useful for -nogui)
   * Turn on/off printing of all incoming and outgoing OSC message with
 cmdline option
   * Turn on/off state messages for testing and debugging with cmdline
 option

2.0
   * Complete rewrite
   * Messaging layer based on OSC
   * Consequent use of namespaces
   * Improved and more reliable state synchronization
   * Faster patch synchronization
   * More intelligent dependency resolving
   * Multiple instances of the same instrument
   * Non-blocking network layer (less audio drop-outs)
   * Lots of bugfixes


Have fun!
Roman


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Re: [PD] pmpd2d, pmpd3d

[John Harrison]

OK I just saw some stuff about this in the archives (e.g. try
[pmpd/pmpd2d]) but that didn't work and neither pmpd2d nor its associated
help file appear anywhere on my drive. This is Pd-extended 0.43.4 release
on ubuntu 12.04 32 bit installed using these directions at the top:
http://puredata.info/docs/faq/debian

On Sat, Feb 23, 2013 at 9:00 AM, John Harrison wrote:

> I'm curious the status of pmpd2d and pmpd3d as I do not see them in
> Pd-extended 0.43.4. I'm also wondering if there is something I haven't
> found yet to create results using pmpd2d to mimic things like iLine2D. I
> see examples like 58_pmpd2d_sand.pd (also not included in Pd-extended
> 0.43.4) which is close to iLine2D but doesn't seem offer the flexibility of
> parameters. For example, using pmpd2d how would I create a "squishy" line
> for my masses to react to such that they appear to reacting to a repulsing
> magnetic force as opposed to a hard wall?
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[PD] pmpd2d, pmpd3d

[John Harrison]

I'm curious the status of pmpd2d and pmpd3d as I do not see them in
Pd-extended 0.43.4. I'm also wondering if there is something I haven't
found yet to create results using pmpd2d to mimic things like iLine2D. I
see examples like 58_pmpd2d_sand.pd (also not included in Pd-extended
0.43.4) which is close to iLine2D but doesn't seem offer the flexibility of
parameters. For example, using pmpd2d how would I create a "squishy" line
for my masses to react to such that they appear to reacting to a repulsing
magnetic force as opposed to a hard wall?
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Re: [PD] pidip

[John Harrison]

I thought there was an earlier version of PiDiP which was and could be
included with Pd-extended because it was released under an
acceptable/compatible license?

On Wed, Feb 6, 2013 at 9:39 AM, Hans-Christoph Steiner wrote:

>
> Just be aware that pidip is not free software because it has clauses in its
> license that restrict what it can be used for.  Including pidip in your
> package means your package can no longer be legally distributed as binaries
> since the pidip license terms conflict with the GPL license terms.
>
> .hc
>
> On 02/06/2013 09:27 AM, Ivica Ico Bukvic wrote:
> > I just finished cleaning up both pdp and pidip libs to be fully
> auto-buildable
> > as part of pd-l2ork (including freenect, artoolkit, opencv, etc.). There
> are a
> > number of packages you need to install from launchpad in order to get
> all the
> > externals to build. Stay tuned for the next release coming soon with
> these
> > enhancements...
> >
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Re: [PD] pix_motionblur + rotateXYZ

[John Harrison]

I think the issue might be that [pix_motionblur] works with images, not
textures. Therefore you need to change your rotated texture into an image,
then blur that. I modified your patch to do this. See if it does what you
want (attached).

-John

On Sat, Dec 15, 2012 at 2:16 AM, Charles Goyard  wrote:

> Hi Cyrille,
>
> > render in a framebuffer and use this image for the motionblur.
>
> That's what I tried without success.
>
> Here's a simplified patch (with a single image instead of movie) showing
> the situation.
>
> Rotation should exhibit some blurring, isn't it ?
>
> Maybe there's smehting I need to setup ? Like alpha or whatso ?
>
> Thanks a lot,
>
> --
> Charles
>
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test-blur2.pd
Description: Binary data
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Re: [PD] Installing externals on ubuntu 12.4 omap

[John Harrison]

Not directly related to the problem but...I just want to throw out there
that I've spent way too much time trying to get netsend~/netreceive~ to
work robustly and they just don't. I'd highly recommend you look for
another external as I'm unaware of anybody using netsend~/netreceive~ with
any consistent luck.

On Tue, Sep 11, 2012 at 5:00 PM, Miller Puckette  wrote:

> One idea:
>
> type "file  /usr/lib/puredata/extra/netsend~.pd_linux" and
> verify that it seems to be for the right arch/OS like this:
>
> file /usr/lib/puredata/extra/bonk~/bonk~.pd_linux
> /usr/lib/puredata/extra/bonk~/bonk~.pd_linux: ELF 32-bit LSB shared object,
> ARM, version 1 (SYSV), dynamically linked,
> BuildID[sha1]=0x28222313b3309b88df48d6ee2cbcffc31f645aeb, stripped
>
> That would also verify the file is readable.  I don't know what else could
> go
> wrong but of course that's how things go wrong in general - someone didn't
> know how it would go wrong :)
>
> On Tue, Sep 11, 2012 at 02:28:42PM -0700, Duncan MacConnell wrote:
> > Hey all, long time user first time mailer..
> >
> > I am trying to install an external.. netsend~, but any external really,
> on
> > to omap ubuntu 12.4
> > Each time I open a patch with the object, I get error:
> >
> > /usr/lib/puredata/extra/netsend~.pd_linux:
> > /usr/lib/puredata/extra/netsend~.pd_linux: cannot open shared object
> file:
> > No such file or directory
> >
> > The file it complains about (as well as the other .h, .c and .pd_linux
> > files) is indeed in the path listed.
> > The only documentation I could find mentioned that they had to be in that
> > directory.
> >
> > puredata installed via sudo apt-get install puredata.
> >
> > Thanks!
>
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Re: [PD] Pure Data/Arduino course webpage

[John Harrison]

Please steal freely. This is all public domain.

Thanks for the tips on making them work on OSX.

-John

On Thu, May 17, 2012 at 4:07 PM, Max  wrote:

>
> Am 14.05.2012 um 14:32 schrieb John Harrison:
> > One thing I wrote as an example for the students in the class was a
> color tracker which could track primary colors. I thought I saw a
> conversation on the list earlier were somebody was writing an external for
> color tracking, but at least primary colors can all be tracked in Gem.
> Maybe it's obvious but in case it's not:
> >
> http://cratel.wichita.edu/blogs/ee577aspring2012/forum2/code-group3/pd-patches-forum4/2-color-trackers-thread16/
>
> john, nice patches. may i steal bits of that for my „bewegungsmelder"
> collection?
> i had to do three things to make them work for me
> 1. add [declare -lib Gem] to make Gem load
> 2. add [pix_rgba] because the default colorspace on os x is yuv
> 3. invert the Y axis by changein *8 -4 to *-8 +4
>
> max
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[PD] Pure Data/Arduino course webpage

[John Harrison]

  
  
I thought it might be interesting and maybe even helpful if I shared
the webpage for the Pure Data/Arduino audio/video course I just
finished teaching. This was a one-semester undergraduate-level
course I taught at Wichita State University. Most students were
electrical/computer engineering students that had minimal applied
experience with programming and circuitry before signing up for the
course.

Main course page:

http://cratel.wichita.edu/blogs/ee577aspring2012/

Student final projects with explanatory video and code:

http://cratel.wichita.edu/blogs/ee577aspring2012/category/final-project-report-video/

The web page for the course includes all assignments, my notes,
schedule and a forum where students asked questions, shared cool
projects they found, etc.

One thing I wrote as an example for the students in the class was a
color tracker which could track primary colors. I thought I saw a
conversation on the list earlier were somebody was writing an
external for color tracking, but at least primary colors can all be
tracked in Gem. Maybe it's obvious but in case it's not:

http://cratel.wichita.edu/blogs/ee577aspring2012/forum2/code-group3/pd-patches-forum4/2-color-trackers-thread16/

-John
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Re: [PD] [GEM] PS3eye in Ubuntu 12.04?

[John Harrison]

  
  
With an earlier version of ubuntu/Pd-extended my startup script
would set ps3eye parameters by by first running guvcview then
killing it, then running Pd. I know that's a hacky solution but it
works if you do not need to change your controls after the patch has
started.

-John 

On 05/14/2012 06:10 AM, Py Fave wrote:
oops i  forgot the list
  
  try apt-get v4l2ucp
  
  you have to invoke it with device as parameter
  
   v4l2ucp /dev/video0
  
  not sure for framerate
  
  2012/5/12 Jaime Oliver <jaime.oliv...@gmail.com>

  hi all,
  
  does anyone have experience with the ps3eye in ubuntu using
  pd/gem?
  
  I am trying out ubuntu for one of my systems and have the
  following issue.
  
  I am able to control the frame rate, autogain and several
  other
  features of the PS3eye camera from GUVCViewer, but I cannot do
  it from
  GEM.
  
  In GEM, when I open device 0 i get:
  
  videoctl: device 0
  info: proplist numread 13
  info: proplist read Auto Gain float 1
  info: proplist read Auto White Balance float 1
  info: proplist read Brightness float 255
  info: proplist read Contrast float 255
  info: proplist read Exposure float 255
  info: proplist read HFlip float 1
  info: proplist read Light Frequency Filter float 1
  info: proplist read Main Gain float 63
  info: proplist read Sharpness float 63
  info: proplist read VFlip float 1
  info: proplist read bus_info symbol usb-:00:1d.7-5
  info: proplist read card symbol USB Camera-B4.09.24.1
  info: proplist read driver symbol ov534
  info: proplist numwrite 10
  info: proplist write Auto Gain float 1
  info: proplist write Auto White Balance float 1
  info: proplist write Brightness float 255
  info: proplist write Contrast float 255
  info: proplist write Exposure float 255
  info: proplist write HFlip float 1
  info: proplist write Light Frequency Filter float 1
  info: proplist write Main Gain float 63
  info: proplist write Sharpness float 63
  info: proplist write VFlip float 1
  v4l2: GEM: pix_video: Opened video connection 0xE
  
  Could anyone suggest a way of controlling the camera so that
  GEM can
  use higher frame rates?
  
  best,
  
  J
  
  --
  Jaime E Oliver LR
  
  jo2...@columbia.edu
  www.jaimeoliver.pe
  858 750 0924 (cel)
  
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  0612994425
  http://www.5data.net
  
  
  
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Re: [PD] variable receive objects?

[John Harrison]

I thought [send13] and [receive13] from the ext13 library were for settable
send and receive? Or am I misunderstanding the question?

I've used those 2 objects a lot and thought they seemed pretty stable...

-John

On Sun, May 13, 2012 at 11:29 AM, Jonathan Wilkes wrote:

> Does anyone have a demo crasher, with iem_receive, [r~], or of any of the
> iemguis (which of course have settable receives as well)?
>
> It's not immediately apparent how to change a receive symbol while a
> message is "currently passing through the receive object".  I though Pd was
> supposed to be deterministic.
>
>
> -Jonathan
>
>
>
> - Original Message -
> > From: Miller Puckette 
> > To: Jonathan Wilkes 
> > Cc: IOhannes m zmölnig ; "pd-list@iem.at" <
> pd-list@iem.at>
> > Sent: Sunday, May 13, 2012 11:42 AM
> > Subject: Re: [PD] variable receive objects?
> >
> > Hi all -
> >
> > If you make a settable 'receive' and then change the setting in a
> > context
> > in which a message is currently passing through the receive object (not
> > at all an unlikely thing to have happen) it will crash Pd.  There are
> ways
> > around this but I don't know of any that would not slow down the global
> > functioning of Pd itself.
> >
> > cheers
> > Miller
> >
> > On Sun, May 13, 2012 at 07:07:28AM -0700, Jonathan Wilkes wrote:
> >>
> >>
> >>
> >>
> >>  - Original Message -
> >>  > From: IOhannes m zmölnig 
> >>  > To: pd-list@iem.at
> >>  > Cc:
> >>  > Sent: Sunday, May 13, 2012 4:03 AM
> >>  > Subject: Re: [PD] variable receive objects?
> >>  >
> >>  > On 05/12/2012 07:58 PM, Jonathan Wilkes wrote:
> >>  >>  - Original Message -
> >>  >>
> >>  >>>  From: Marian Weger
> >>  >>>  To: pd-list@iem.at
> >>  >>>  Cc:
> >>  >>>  Sent: Saturday, May 12, 2012 8:09 AM
> >>  >>>  Subject: Re: [PD] variable receive objects?
> >>  >>>
> >>  >>>  hi!
> >>  >>>
> >>  is there a way to generate a variable receive object
> > similar to a
> >>  > send via
> >>  >>>  message box, whose source is defined at load time?
> >>  >>>
> >>  >>>  use iem_receive / iem_r from iemlib.
> >>  >>
> >>  >>  Wow, that is classic Pd development style-- add a tiny feature to
> > an
> >>  >>  object, but don't actually improve _that_ object.
> >>  >
> >>  > ever thought that there might be a good reason why [r] is not
> > seettable,
> >>  > and that [iem_r] - while superficially working - exposes exactly the
> >>  > problems of a settable [r]?
> >>
> >>  Enlighten me.
> >>
> >>  >
> >>  > mfgadsr
> >>  > IOhannes
> >>  >
> >>  > PS: there should be a discussion on this topic in the archives.
> >>
> >>  I don't find anything of the sort.  Tried searching for "settable
> > receive", "setting receive",
> >>  and "iem_receive"
> >>
> >>  -Jonathan
> >>
> >>  >
> >>  > ___
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Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit

[John Harrison]

I'm not sure which version of Gem I had with the daily builds of
Pd-extended I was downloading. (Is there a way I could figure this out?)
The good news is that I built Gem
commit a087e24536dcd2e691eef92eafeeef298a4e4274 from git (last commit on
Apr 29) and it doesn't crash, so it seems to problem is fixed.

-John


On Sun, Apr 22, 2012 at 4:40 AM, IOhannes m zmoelnig wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> On 2012-04-21 15:42, Hans-Christoph Steiner wrote:
> >
> > On Apr 21, 2012, at 9:09 AM, IOhannes m zmoelnig wrote:
> >
> >> -BEGIN PGP SIGNED MESSAGE-
> >> Hash: SHA1
> >>
> >> On 2012-04-16 20:44, John Harrison wrote:
> >>> Sorry for the delay on this. I downloaded today's binary build of
> >>> Pd-extended for Ubuntu 11.10 32 bit, then ran Pd-extended with -nrt in
> >>
> >> is it possible to build Gem (from the git "master" branch) yourself?
> >> what is the exact version it shows for Gem?
> >
> > Gem in Pd-extended is the 0.93 branch, at commit
> 1458b4f8cfa12503bba94e2a8804f802f07efdaa
>
> thanks hans.
> however, i was explicitely asking john which version he is using, rather
> than which version comes bundled with PdX;
> the two could be different (which i hope, since i really believe that
> the issue should be fixed, at least in the master branch)
>
> fgamsdr
> IOhannes
> -BEGIN PGP SIGNATURE-
> Version: GnuPG v1.4.12 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>
> iEYEARECAAYFAk+T0f8ACgkQkX2Xpv6ydvSoDgCgodi2d717pTgpzy6uhGiPPxeN
> /QAAni3FZI7Dm4ol7NvD+gZyJAZmqSQW
> =6OKP
> -END PGP SIGNATURE-
>
>
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Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit

[John Harrison]

Sorry for the delay on this. I downloaded today's binary build of
Pd-extended for Ubuntu 11.10 32 bit, then ran Pd-extended with -nrt in gdb.
I still get a segfault when opening/deleting/opening test99.pd as an
abstraction. For your convenience, test99.pd is again attached. Here's the
backtrace:

Program received signal SIGSEGV, Segmentation fault.
outlet_anything (x=0x0, s=0x81c7fc0, argc=2, argv=0x82395d8) at m_obj.c:469
469 m_obj.c: No such file or directory.
 in m_obj.c
(gdb) bt
#0  outlet_anything (x=0x0, s=0x81c7fc0, argc=2, argv=0x82395d8) at
m_obj.c:469
#1  0x00c4c8dc in gem::RTE::Outlet::send(std::string, std::vector >) () from
/usr/lib/pd-extended/extra/Gem/Gem.pd_linux
#2  0x00db4443 in pix_image::loaded(unsigned int, imageStruct*,
gem::Properties const&) () from /usr/lib/pd-extended/extra/Gem/Gem.pd_linux
#3  0x00db57b3 in pix_image::loadCallback(void*, unsigned int,
imageStruct*, gem::Properties const&) () from
/usr/lib/pd-extended/extra/Gem/Gem.pd_linux
#4  0x00c37f30 in gem::image::PixImageThreadLoader::done(unsigned int,
void*)
() from /usr/lib/pd-extended/extra/Gem/Gem.pd_linux
#5  0x00c49996 in gem::thread::SynchedWorkerThread::dequeue() ()
   from /usr/lib/pd-extended/extra/Gem/Gem.pd_linux
#6  0x00c37bc0 in gem::image::load::poll() ()
   from /usr/lib/pd-extended/extra/Gem/Gem.pd_linux
#7  0x00db3b6e in pix_image::pix_image(_symbol*) ()
   from /usr/lib/pd-extended/extra/Gem/Gem.pd_linux
#8  0x00db3ca8 in create_pix_image(_symbol*) ()
   from /usr/lib/pd-extended/extra/Gem/Gem.pd_linux
#9  0x0808027a in pd_typedmess (x=0x80ff880, s=0x81cac20,
argc=, argv=0xbfffe18c) at m_class.c:795
#10 0x0808631e in binbuf_eval (x=0x824a158, target=0x80ff880, argc=1,
argv=0x83bd270) at m_binbuf.c:767


On Thu, Apr 5, 2012 at 12:39 PM, IOhannes m zmoelnig wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> On 2012-04-05 17:35, John Harrison wrote:
> > Today's build still fails with same test:
> >
> > [New Thread 0x1defb70 (LWP 19910)]
> > [New Thread 0x2c86b70 (LWP 19911)]
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > outlet_anything (x=0x0, s=0x81c7df0, argc=2, argv=0x82181b8) at
> m_obj.c:469
> > 469m_obj.c: No such file or directory.
> > in m_obj.c
> > (gdb) watchdog: signaling pd...
> >
>
> please post a complete backtrace (and turn off realtime mode with "-nrt"
> when running Pd in gdb)
>
> fgmasdr
> IOhannes
> -BEGIN PGP SIGNATURE-
> Version: GnuPG v1.4.12 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>
> iEYEARECAAYFAk992LwACgkQkX2Xpv6ydvRcxQCgwF+Sdl5QFz4gKUYxlkvsvI6D
> fh8AoJbD8XPHJ8au3fnLW+pPjv4VQzwQ
> =GEzY
> -END PGP SIGNATURE-
>
>


test99.pd
Description: Binary data
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Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit

[John Harrison]

Today's build still fails with same test:

[New Thread 0x1defb70 (LWP 19910)]
[New Thread 0x2c86b70 (LWP 19911)]

Program received signal SIGSEGV, Segmentation fault.
outlet_anything (x=0x0, s=0x81c7df0, argc=2, argv=0x82181b8) at m_obj.c:469
469 m_obj.c: No such file or directory.
in m_obj.c
(gdb) watchdog: signaling pd...


On Wed, Apr 4, 2012 at 8:53 AM, Hans-Christoph Steiner wrote:

>
> On Apr 4, 2012, at 8:09 AM, IOhannes m zmoelnig wrote:
>
> > -BEGIN PGP SIGNED MESSAGE-
> > Hash: SHA1
> >
> > On 2012-04-04 14:06, John Harrison wrote:
> >> I'll see if I can figure all that out and test this weekend... I assume
> >> with git log it will be obvious what commit I need to cherry-pick.
> >
> > probably i'm a bit too cryptic: Gem's 0.93 git-branch already has the
> > cherry-picked fixes applied.
> > so checkout the 0.93 branch, compile and see whether it has the problem
> > fixed.
>
> Yes, you were being too cryptic ;)  When there is a commit in Gem's 0.93
> branch, I'm happy to commit it to the Pd-extended 0.43 release branch.
>  Done:
>
>
> http://pure-data.svn.sourceforge.net/viewvc/pure-data?view=revision&revision=16109
>
> John, tomorrow's will include this fix, if you can test it again.
>
> .hc
>
>
>
> 
>
> Terrorism is not an enemy.  It cannot be defeated.  It's a tactic.  It's
> about as sensible to say we declare war on night attacks and expect we're
> going to win that war.  We're not going to win the war on terrorism.
>  - retired U.S. Army general, William Odom
>
>
>
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Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit

[John Harrison]

I'll see if I can figure all that out and test this weekend... I assume
with git log it will be obvious what commit I need to cherry-pick.

-John

On Wed, Apr 4, 2012 at 2:08 AM, IOhannes m zmoelnig  wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> On 2012-04-04 03:25, Hans-Christoph Steiner wrote:
> >> i have hopefully fixed that as well and committed it to Gem's git
> (committish 1458b4f8cf in the 0.93 branch, in case somebody wants to
> backport it)
> >>
> >
> > John or IOhannes,
> >
> > Please let me know when its in the 0.93 branch, and I'll include it in
> Pd-extended.
> >
>
> "committed it to Gem's git (committish 1458b4f8cf in the 0.93 branch)"
>
> it would be nice, if john could test it more directly, without having me
> fix the bug in Gem's master, then backport it to Gem's 0.93, then having
> hans backport the changes to Pd-extended, then wait for the nightly
> build and then report that it is not working...
>
> backporting from Gem's master to Gem's 0.93 is fairly trivial using
> git's cherry-pick. the rest is less fun and should probably only be done
> once the bug is really fixed.
>
> fmasdr
> IOhannes
> -BEGIN PGP SIGNATURE-
> Version: GnuPG v1.4.12 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>
> iEYEARECAAYFAk9781EACgkQkX2Xpv6ydvTGPwCfW9oHv5Cwl0YHmUqvnLYjoe7N
> e0YAoNn2ES0T6jha+hvYXy1IsmxGFZUJ
> =NZrN
> -END PGP SIGNATURE-
>
>
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Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit

[John Harrison]

I can't tell if this is a new crash triggered by the same create/destroy
event or the old crash. The same scenario triggers the crash
(create/destroy test99.pd in a new canvas) but gdb reports something
different. This is on today's build, Oneiric 32 bit. test99.pd was attached
on this thread and is again attached to this email.

-John

On Tue, Apr 3, 2012 at 2:16 PM, Hans-Christoph Steiner wrote:

>
> What's test99.pd?  Is this a new crash with today's build?
>
> .hc
>
> On Apr 3, 2012, at 3:03 PM, John Harrison wrote:
>
> Today's build (April 3, 2012) still crashes with creating/destroying
> test99.pd. The gdb reports something a bit different though:
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x0807fd79 in pd_typedmess (x=0x647261, s=0x81c7f68, argc=2,
> argv=0x825fb80)
> at m_class.c:707
> 707 m_class.c: No such file or directory.
> in m_class.c
> (gdb) watchdog: signaling pd...
>
>
> On Mon, Apr 2, 2012 at 9:53 AM, Hans-Christoph Steiner wrote:
>
>>
>> On Apr 2, 2012, at 3:32 AM, IOhannes m zmoelnig wrote:
>>
>> > -BEGIN PGP SIGNED MESSAGE-
>> > Hash: SHA1
>> >
>> > On 2012-03-29 19:03, John Harrison wrote:
>> >> I've been trying to track down a seg fault I keep getting and I'm still
>> >> not sure if the problem is Gem or Pd-extended or what.
>> >>
>> >> This is the latest pd-extended 0.43.1 Beta CVS March 29 (today) running
>> >> on Oneric 32 but. I have simplified my patch to a point it doesn't make
>> >> sense anymore but I can still make it crash, so I figure that's what we
>> >> need.
>> >>
>> >> Basically if you create a new patch then make the object [test99 1],
>> >> then copy and paste that object, then change the 1 parameter to a 2 you
>> >> get a seg fault most of the time. If not, creating a [test99 3] or
>> >> [test99 4] should do it, again most of the time.
>> >>
>> >> It seems related with Gem but I'm not sure if it is a Gem bug. I tried
>> >> the same Gem library with Pd vanilla and it didn't crash. On the other
>> >> hand, it seems related to the [pix_image] object in test99. Also you
>> >> need to have the parameters to get the patch to crash, even though the
>> >> patch doesn't take parameters. (The original patch did take
>> parameters.)
>> >>
>> >> Core dump has only this information: Program terminated with signal 11,
>> >> Segmentation fault.
>> >> #0  0x0111ac01 in gem::RTE::Outlet::send(std::string,
>> >> std::vector >) () from
>> >> /usr/lib/pd-extended/extra/Gem/Gem.pd_linux
>> >>
>> >
>> > if i'm not mistaken this has been recently fixed in Gem (around 21st of
>> > march) and is related to threaded loading of images and deleting objects
>> > while the load is still in process.
>> >
>> > to avoid the problem you can do either of those:
>> > - - upgrade to a new version of gem (there's a backport of the fix to
>> the
>> > (stable) 0.93 branch of Gem, though no official release has been made
>> > yet, containing the fix)
>> > - - avoid using threaded loading of images, e.g by sending the [thread
>> 0(
>> > message to [pix_image] before loading images.
>> > - - avoid deleting a [pix_image] that has pending "open" requests
>>
>> I just committed the latest patches from the 0.93 Gem branch to the
>> Pd-extended 0.43 release branch.  They'll be in tomorrow's build.  John,
>> could you test this and report back if there are any problems?
>>
>> .hc
>>
>>
>> 
>>
>> I hate it when they say, "He gave his life for his country."  Nobody
>> gives their life for anything.  We steal the lives of these kids.  -Admiral
>> Gene LeRocque
>>
>>
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>
>
>
>
>
> 
>
>   http://at.or.at/hans/
>
>
>


test99.pd
Description: Binary data
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Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit

[John Harrison]

Today's build (April 3, 2012) still crashes with creating/destroying
test99.pd. The gdb reports something a bit different though:

Program received signal SIGSEGV, Segmentation fault.
0x0807fd79 in pd_typedmess (x=0x647261, s=0x81c7f68, argc=2, argv=0x825fb80)
at m_class.c:707
707 m_class.c: No such file or directory.
in m_class.c
(gdb) watchdog: signaling pd...


On Mon, Apr 2, 2012 at 9:53 AM, Hans-Christoph Steiner wrote:

>
> On Apr 2, 2012, at 3:32 AM, IOhannes m zmoelnig wrote:
>
> > -BEGIN PGP SIGNED MESSAGE-
> > Hash: SHA1
> >
> > On 2012-03-29 19:03, John Harrison wrote:
> >> I've been trying to track down a seg fault I keep getting and I'm still
> >> not sure if the problem is Gem or Pd-extended or what.
> >>
> >> This is the latest pd-extended 0.43.1 Beta CVS March 29 (today) running
> >> on Oneric 32 but. I have simplified my patch to a point it doesn't make
> >> sense anymore but I can still make it crash, so I figure that's what we
> >> need.
> >>
> >> Basically if you create a new patch then make the object [test99 1],
> >> then copy and paste that object, then change the 1 parameter to a 2 you
> >> get a seg fault most of the time. If not, creating a [test99 3] or
> >> [test99 4] should do it, again most of the time.
> >>
> >> It seems related with Gem but I'm not sure if it is a Gem bug. I tried
> >> the same Gem library with Pd vanilla and it didn't crash. On the other
> >> hand, it seems related to the [pix_image] object in test99. Also you
> >> need to have the parameters to get the patch to crash, even though the
> >> patch doesn't take parameters. (The original patch did take parameters.)
> >>
> >> Core dump has only this information: Program terminated with signal 11,
> >> Segmentation fault.
> >> #0  0x0111ac01 in gem::RTE::Outlet::send(std::string,
> >> std::vector >) () from
> >> /usr/lib/pd-extended/extra/Gem/Gem.pd_linux
> >>
> >
> > if i'm not mistaken this has been recently fixed in Gem (around 21st of
> > march) and is related to threaded loading of images and deleting objects
> > while the load is still in process.
> >
> > to avoid the problem you can do either of those:
> > - - upgrade to a new version of gem (there's a backport of the fix to the
> > (stable) 0.93 branch of Gem, though no official release has been made
> > yet, containing the fix)
> > - - avoid using threaded loading of images, e.g by sending the [thread 0(
> > message to [pix_image] before loading images.
> > - - avoid deleting a [pix_image] that has pending "open" requests
>
> I just committed the latest patches from the 0.93 Gem branch to the
> Pd-extended 0.43 release branch.  They'll be in tomorrow's build.  John,
> could you test this and report back if there are any problems?
>
> .hc
>
>
> 
>
> I hate it when they say, "He gave his life for his country."  Nobody gives
> their life for anything.  We steal the lives of these kids.  -Admiral Gene
> LeRocque
>
>
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[PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit

[John Harrison]

I've been trying to track down a seg fault I keep getting and I'm still not
sure if the problem is Gem or Pd-extended or what.

This is the latest pd-extended 0.43.1 Beta CVS March 29 (today) running on
Oneric 32 but. I have simplified my patch to a point it doesn't make sense
anymore but I can still make it crash, so I figure that's what we need.

Basically if you create a new patch then make the object [test99 1], then
copy and paste that object, then change the 1 parameter to a 2 you get a
seg fault most of the time. If not, creating a [test99 3] or [test99 4]
should do it, again most of the time.

It seems related with Gem but I'm not sure if it is a Gem bug. I tried the
same Gem library with Pd vanilla and it didn't crash. On the other hand, it
seems related to the [pix_image] object in test99. Also you need to have
the parameters to get the patch to crash, even though the patch doesn't
take parameters. (The original patch did take parameters.)

Core dump has only this information: Program terminated with signal 11,
Segmentation fault.
#0  0x0111ac01 in gem::RTE::Outlet::send(std::string, std::vector >) () from
/usr/lib/pd-extended/extra/Gem/Gem.pd_linux

[test99] is attached.


test99.pd
Description: Binary data
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Re: [PD] Pd extended 0.43-1 nightly missing tk dependency on ubuntu 11.10 (Oneiric)

[John Harrison]

How many people would chose to use ubuntu Oneiric, use a pre-built binary
for Pd-extended, AND not have X? I would hope that small group would
reconsider using Oneiric for something a bit more streamlined and would
likely be compiling their own minimalist Pd --- certainly not Pd-extended.

I could more easily except the answer of leaving it as "Recommends" if Pd
did not use X by default or at least if it returned an error message (in an
X window if run from an X window) describing the missing dependency.

While one probably exists, I know of no other pre-built binaries in ubuntu
which intentionally are missing dependencies preventing them from running
in their default modes. Pd's default is to use X.

I think vlc might get around this by having a separate vlc-nox binary? If
we really have to have binaries for ubuntu that don't depend on tk, I'd
recommend that route.

-John

On Tue, Feb 14, 2012 at 3:57 PM, Roman Haefeli  wrote:

> On Tue, 2012-02-14 at 15:11 -0600, John Harrison wrote:
> > Then that would be the case for all stock Oneirics. I think it should be
> > depends. This will be confusing for novice users, such as those using
> stock
> > setups.
>
> If it would be a 'Depends:', then there wouldn't be a way to install
> Pd(-extended) without pulling in a whole X-server setup. I think it
> should stay a 'Recommends:'.
>
> Roman
>
>
>
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Re: [PD] Pd extended 0.43-1 nightly missing tk dependency on ubuntu 11.10 (Oneiric)

[John Harrison]

Then that would be the case for all stock Oneirics. I think it should be
depends. This will be confusing for novice users, such as those using stock
setups.

-John

On Tue, Feb 14, 2012 at 11:47 AM, Hans-Christoph Steiner wrote:

>
> Sounds like you have --no-install-recommends setup since tk8.5 is a
> Recommends: rather than a Depends:.  Its not Depends: because you can
> actually run Pd -nogui without tk8.5.
>
> .hc
>
> On Feb 14, 2012, at 12:08 AM, John Harrison wrote:
>
> The problem still exists in today's nightly build (Feb 13, 2012). I just
> installed on a new Oneiric machine and had the same issue.
>
> On Tue, Feb 7, 2012 at 2:12 PM, Hans-Christoph Steiner wrote:
>
>>
>> Thanks for reporting, this commit should fix it:
>>
>> http://pure-data.svn.sourceforge.net/viewvc/pure-data?view=revision&revision=15956
>>
>> .hc
>>
>> On Feb 7, 2012, at 3:06 PM, John Harrison wrote:
>>
>> > Pd extended 0.43-1 nightly gives "sh: wish: not found" error and won't
>> run until tk is loaded.
>> >
>> >
>> > ___
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>>
>>
>>
>>
>> 
>>
>> You can't steal a gift. Bird gave the world his music, and if you can
>> hear it, you can have it. - Dizzy Gillespie
>>
>>
>>
>>
>
>
>
>
> 
>
> "Making boring techno music is really easy with modern tools, but with
> live coding, boring techno is much harder." - Chris McCormick
>
>
>
>
>
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Re: [PD] Pd extended 0.43-1 nightly missing tk dependency on ubuntu 11.10 (Oneiric)

[John Harrison]

The problem still exists in today's nightly build (Feb 13, 2012). I just
installed on a new Oneiric machine and had the same issue.

On Tue, Feb 7, 2012 at 2:12 PM, Hans-Christoph Steiner wrote:

>
> Thanks for reporting, this commit should fix it:
>
> http://pure-data.svn.sourceforge.net/viewvc/pure-data?view=revision&revision=15956
>
> .hc
>
> On Feb 7, 2012, at 3:06 PM, John Harrison wrote:
>
> > Pd extended 0.43-1 nightly gives "sh: wish: not found" error and won't
> run until tk is loaded.
> >
> >
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> 
>
> You can't steal a gift. Bird gave the world his music, and if you can hear
> it, you can have it. - Dizzy Gillespie
>
>
>
>
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Re: [PD] wiimote report

[John Harrison]

Yes I had similar problems and switching to [disis_wiimote] fixed all the
crashes.

OT: is any of L2Ork going to be merged into Pd/PdX at some point? Seems
like there are some good improvements going on there, for example unlimited
undo.

-John

On Fri, Feb 10, 2012 at 9:39 AM, Ivica Ico Bukvic  wrote:

> Try disis_wiimote (http://l2ork.music.vt.edu/main/?page_id=56). We use it
> as the core controller inside L2Ork with over dozen machines in the same
> room and it has been rock solid for over 2 years. It is multithreaded so
> sending rumble/led messages back to Wiimote does not block Pd. It is also
> driven by metro so you can decide the granularity of updates. Supports
> MotionPlus, etc. Wii Fit support can be added I just didn't bother with it
> yet but it shouldn't be too hard...
>
> > -Original Message-
> > From: pd-list-boun...@iem.at [mailto:pd-list-boun...@iem.at] On Behalf
> > Of u...@xdv.org
> > Sent: Friday, February 10, 2012 9:48 AM
> > To: pd-list@iem.at
> > Subject: Re: [PD] wiimote report
> >
> > to answer my question:
> > i changed onoff  from int to float and it works such that i can turn
> > reports on and off.
> >
> > it still crashes a lot though ...
> > well, seems like i should go for supercollider/osc. or is there another
> > wii external for linux?
> >
> > thanks+ciao,
> > ub
> >
> > it still crashes a lot though, especially with
> >
> > On 09.02.2012 12:34, u...@xdv.org wrote:
> > > can someone help me understand, what's going on here?
> >
> >
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[PD] Pd extended 0.43-1 nightly missing tk dependency on ubuntu 11.10 (Oneiric)

[John Harrison]

Pd extended 0.43-1 nightly gives "sh: wish: not found" error and won't run
until tk is loaded.
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[PD] pd-extended 0.42-5 zexy <~, >~, !=~, ==~ not working (win32, linux)

[John Harrison]

I've tried to create zexy's  <~, >~, !=~, ==~ objects in 0.42-5 for both
win32 and linux and they do not create successfully on either platform. Am
I doing something silly? If not, is there a workaround for 0.42-5?
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Re: [PD] No loadbang in dynamically created objects

[John Harrison]

This is expected behavior and has been discussed on the list several times.
You can send loadbang as a message to the abstraction or use initbang.

Sent from my cell...
On Aug 20, 2011 12:46 PM, "brandon zeeb"  wrote:
>
> Hey dudes,
>
> I'm on 0.43-0 vanilla and just noticed that [loadbang] bangs are not being
fired within abstractions which are created dynamically.  Am I missing
something, or did I just stumble upon a bug?
>
> Cheers,
>
> --
> Brandon Zeeb
>
>
>
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Re: [PD] Desktop Screen Capture

[John Harrison]

Here's two methods that came up when I asked about this:
http://lists.puredata.info/pipermail/pd-list/2010-08/082168.html
http://lists.puredata.info/pipermail/pd-list/2010-08/082173.html

I vaguely remember that there might be a way to do this just with 
gridflow as well?


I went with webcam studio and it worked great, but I think that might be 
Linux only.


-John
On 08/06/2011 09:21 PM, Andreas Eberharter wrote:

Hi all,

I would like to create a patch, which allows the capture of the desktop screen 
and at the same time the iSight camera. If you are familiar with Silverpack 
http://silverbackapp.com/ it is basically, what I would like to achieve with 
pd/gem.

I am just starting, so if this question was asked already once, please point me 
to the right direction (I used the search on the archives, but could not find 
what I was searching for)

I am on a MacBook Pro running OS X 10.7.

I have played with the examples and capturing video from the iSight camera 
works really nice, what I can't find though, is a screen capture option. Is 
this possible?

Thank you for your help,
Greetings,
Andreas
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--
John Harrison http://alumni.media.mit.edu/~harrison

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Re: [PD] Extended version for Natty AMD64?

[John Harrison]

I used 64 bit from lucid on my natty machine. I think I had to use gem from
the repos but otherwise it works fine.

Sent from my cell...
On Jul 3, 2011 10:57 AM, "Mario Mey"  wrote:
> Hello, everybody. Is there any build for Natty AMD64 of the Extended
> version? For the moment, I don't want to compile it...
>
> Thanks!
>
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Re: [PD] getting pix_blobtracker to work

[John Harrison]

The issue of mtx_* not creating on PdX and how to solve has come up on 
this list several times now so you might check the archives. Yes mtx_* 
is an abbreviation for mtx_mul. pix_blobtracker works well for me in PdX 
--- just used it on a project last week. IOhannes mentioned it on the 
list just a few months ago as a way to track blobs so I think it's as 
current/good as any ready-made solution for this that I know of. I had 
to do the same fiddling as you to get it to go.


-John

On 04/11/2011 02:28 AM, Matteo Sisti Sette wrote:

Hi,

In Pd Extended, pix_blobtracker doesn't work because it contains 
objects from the iemmatrix library which is not included at startup. I 
guess I can fix that by manually loading those directories, but 
pix_blobtracker also uses a [mtx_*] object that doesn't seem to exist 
in the iemmatrix library.


Is mtx_* somewhere else? Or has it been replaced by mtx_mul?

Is pix_blobtracker the recommended way to track multiple blobs or has 
it been superseded by some other abstraction or object?


thanks
m.

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Re: [PD] udp broadcasting with netsend: permission denied in Linux

[John Harrison]

Can you say more about disis netsend vs netsend?

Btw I've been using netsend and netreceive to broadcast through a network on
linux without problems for years. My guess is you have a firewall up...

...sent from my cell
On Mar 31, 2011 11:11 AM, "Ivica Ico Bukvic"  wrote:
> Use disis_netsend/netreceive, which provide this and other
functionalities.
>
> Ico
>
>> -Original Message-
>> From: pd-list-boun...@iem.at [mailto:pd-list-boun...@iem.at] On Behalf
>> Of Matteo Sisti Sette
>> Sent: Thursday, March 31, 2011 10:51 AM
>> To: PD-List
>> Subject: Re: [PD] udp broadcasting with netsend: permission denied in
>> Linux
>>
>> By the way, if I try to connect to 192.168.2.255 (which is the broadcast
>> address for my actual local network) instead of 255.255.255.255, I get
>> the same error in the terminal, but in this case, in the Pd console I
>> also see the message "bad host?"
>>
>> On 03/31/2011 04:46 PM, Matteo Sisti Sette wrote:
>> > Hi,
>> >
>> > I've used netsend for broadcasting UDP packets to the local network
>> for
>> > years, connecting to 255.255.255.255:5000 (or any other port >1024)
>> and
>> > I never had problems under Windows.
>> >
>> > However in Linux it doesn't work, it doesn't connect. If I run Pd from
a
>> > terminal, I see this error in the terminal output: "connecting stream
>> > socket: Permission denied (13)" (one of the few errors that don't
appear
>> > in the pd console btw).
>> >
>> > I remember mentioning this some time ago and being told that it had
>> been
>> > fixed, but it seems it isn't.
>> >
>> > Is there a way to circumvent this and be able to broadcast udp
>> packets
>> > with netsend?
>> >
>> > thanks
>> > m.
>>
>>
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Re: [PD] Dynamic patching with audio - review

[John Harrison]

Yeah the zak system. That's what I used. I recall it was a bit of a mental
teaser as you said.

On Wed, Mar 16, 2011 at 4:23 AM, Andy Farnell wrote:

>
>
> And if you're going to use Csound there's the zak system of course.
> It's a pig to set up and very hard mental work to keep track of
> which streams have been activated or cleared to avoid clips or
> feedback... but it works in practice to give any to any dynamic
> patching so you can have modular synths being gracefully repatched
> at runtime.
>
> a.
>
>
>
> On Tue, 15 Mar 2011 23:29:17 -0500
> John Harrison  wrote:
>
> > Not that I am necessarily recommending it but, Csound will allow you to
> > instantiate multiple instances of objects at runtime. I did this with
> > Csound awhile ago and haven't touched Csound since but the general idea
> > was create all your instruments to accept parameters and store
> > input/output connections etc. in tables. You tell Csound to read its
> > score file from stdin and you create/destroy instruments with various
> > parameters by sending to Csound's stdin using the general-purpose
> > computer language of your choice. (I used Python). Hopefully Csound has
> > graduated to allowing instances of instruments to be created through OSC
> > as well as stdin at this point.
> >
> > -John
>
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Re: [PD] Dynamic patching with audio - review

[John Harrison]

Not that I am necessarily recommending it but, Csound will allow you to 
instantiate multiple instances of objects at runtime. I did this with 
Csound awhile ago and haven't touched Csound since but the general idea 
was create all your instruments to accept parameters and store 
input/output connections etc. in tables. You tell Csound to read its 
score file from stdin and you create/destroy instruments with various 
parameters by sending to Csound's stdin using the general-purpose 
computer language of your choice. (I used Python). Hopefully Csound has 
graduated to allowing instances of instruments to be created through OSC 
as well as stdin at this point.


-John

On 03/15/2011 03:15 AM, Frank Barknecht wrote:

Hi,

On Tue, Mar 15, 2011 at 12:07:05AM +0100, Jérôme Abel wrote:

I'm working on an open source multiuser game with a sound experimentation focus.
The choosen sound engine is our favorite one Pure Data. Let's imagine populate 
a 3D world with pd sound patchs !
The issue is to create/destroy audio abstractions (made by users/artists) and 
connect/disconnect them.
The audio path system must be compliant with paths in a 3D world. A sound pass 
through rooms and apertures :
http://abel.jerome.free.fr/newatlantis/AudioDynamicPatching/images/pathfinding.png

It must be dynamic like a game. I was enjoying doing this with pd, but ... my 
hair become more and more white.
It's quite difficult.

I propose here to write a little review of this issue. To be completed, to be 
rectified.
Don't forget that the best is the easiest way (less compilation, less 
dependancies, less bad tricks, etc.) and cross-platform (Linux/MacOSX/Win).

...

4 - PURE DATA - LIBPD
-
Let's come back with Pd. We know that Pd was used in a game Spore :
http://lists.puredata.info/pipermail/pd-list/2007-11/056212.html

It could be a solution to handle dynamic audio patching. Any feedbacks ?

Libpd turns Pd into an embeddable library, so you can use Pd as a sound engine 
in mobile phone apps, games, web pages, and art projects
http://puredata.info/community/projects/software/libpd/

libpd will make a complete instance of Pd available inside of another
application, but it does not deal with instantiating single objects. This is
still only possible with the "usual" mechanism Pd offers, i.e. dynamic
patching, and it has the same disadvantages.

Maybe LuaAV would be worth a look, too?

Ciao




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[PD] memento crashing in Pdextended 0.42-5 Ubuntu 10.10

[John Harrison]

Memento crashes  Pdextended 0.42-5 on Ubuntu 10.10. Steps to reproduce:
- open 5-tut.pd (in /usr/lib/pd-extended/extra/memento/manual)
- try to interact with the patch/tutorial in any way as instructed in the
patch

I got pool as a binary from here:
http://g.org/ext/beta/linux/pd/


-- 
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Re: [PD] How do I squeeze more performance out of Gem?

[John Harrison]

Ok so I did something stupid with the
[GEMglLightModeliGL_LIGHT_MODEL_TWO_SIDE GL_FALSE] test which that I
connected it to a
[gemhead] instead of [gemhead 1]. When I corrected that I did find that
indeed the performance changes drastically for the better. OTOH I couldn't
get satisfactory lighting for my environment. It's a good technique for me
to remember and I could probably make it work even for this project with
enough experimentation of lighting sources and direction but...

it seems clear to me on my system at least with GL_LIGHT_MODEL_TWO_SIDE set
to its default GL_TRUE the bottleneck is the lighting and any gains with a
display list or model are lost because of the lighting issue. However I'm
finding that I get satisfactory performance and appearance by changing the
sphere to have 10 segments instead of 30. With a 10 segment sphere I can
make 1000 spheres and straight-line curves at 20fps at about 70% draw on a
CPU core. That works for me! :-)

I was curious if for a future project there might be a way I could make a
shader that would emulate the local lighting effect and do it more
efficiently. Serious exploration with shaders definitely needs to be in my
future.

In any case, thanks for all the help!

-John

On Wed, Mar 9, 2011 at 1:55 PM, cyrille henry  wrote:

> with lighting on, things did not really change with the model or display
> list, but rendering sphere is 2 time slower.
>
> here is the sphere.
>
> Cyrille
>
> Le 09/03/2011 20:44, John Harrison a écrit :
>
>> It appears I'm actually getting better results from [gemlist] too with
>> lighting off. But how do your results change with lighting on? For me, with
>> lighting on, they seem about the same.
>>
>> If you have your sphere.obj model with 900 triangles handy, I'd love to
>> try it.
>>
>> -John
>>
>> On Wed, Mar 9, 2011 at 12:19 PM, cyrille henry > c...@chnry.net>> wrote:
>>
>>here, at 20fps, no lighting, i can draw about 500 model with your
>> sphere.obj.
>>1000 sphere 30, and about 3500 display list of sphere 30.
>>using an other sphere.obj with about 900 triangles, i've got the same
>> performance than with the display list.
>>
>>it really is strange that the sphere is the fastest on your computer.
>>
>>Cyrille
>>
>>
>>Le 09/03/2011 19:08, John Harrison a écrit :
>>
>>Using Cyrille's test patch for speed which he sent into the list a
>> week or so ago, I tried creating multiple spheres, gemlists, and models. The
>> sphere is getting the best performance results, unfortunately. Attached is
>> my test patch. I just connected [repeat] to either [sphere] [GEMglCallList]
>> or [model] in the patch. The sphere model I used has probably got way too
>> many points (just found it on the 'net) but my hope was that as the vertices
>> were static it wouldn't matter.
>>
>>http://www.eecs.umich.edu/~guskov/eecs598-1/sphere.obj <
>> http://www.eecs.umich.edu/%7Eguskov/eecs598-1/sphere.obj>
>>
>>
>>maybe one with less vertices will help. I can try...
>>
>>-John
>>
>>On Wed, Mar 9, 2011 at 9:48 AM, chris clepper 
>> > cgclep...@gmail.com> <mailto:cgclep...@gmail.com > cgclep...@gmail.com>>> wrote:
>>
>>    A model is the way to go since the vertex data is static.
>>  Ideally for situations like this there would be one object that loads a
>> single model and several clients that just call the display list.  Although
>> there is a lot of memory on GPUs now so 200 models of a sphere won't take up
>> that much.
>>
>>On Wed, Mar 9, 2011 at 10:32 AM, John Harrison <
>> johnharrison...@gmail.com <mailto:johnharrison...@gmail.com> > johnharrison...@gmail.com <mailto:johnharrison...@gmail.com>>> wrote:
>>
>>
>>
>>
>>
>>On Wed, Mar 9, 2011 at 1:59 AM, cyrille henry <
>> c...@chnry.net <mailto:c...@chnry.net> <mailto:c...@chnry.net > c...@chnry.net>> <mailto:c...@chnry.net <mailto:c...@chnry.net> > c...@chnry.net <mailto:c...@chnry.net>>>> wrote:
>>
>>hello,
>>
>>- try using a display list to render a sphere,
>> so that every point don't have to be send for every sphere.
>>see exemple 09.openGL/02.displaylist
>>you can also use a model with a sphere.obj to
>> have the same result.
>>
>>if the spheres are all moving at once, would 

Re: [PD] How do I squeeze more performance out of Gem?

[John Harrison]

It appears I'm actually getting better results from [gemlist] too with
lighting off. But how do your results change with lighting on? For me, with
lighting on, they seem about the same.

If you have your sphere.obj model with 900 triangles handy, I'd love to try
it.

-John

On Wed, Mar 9, 2011 at 12:19 PM, cyrille henry  wrote:

> here, at 20fps, no lighting, i can draw about 500 model with your
> sphere.obj.
> 1000 sphere 30, and about 3500 display list of sphere 30.
> using an other sphere.obj with about 900 triangles, i've got the same
> performance than with the display list.
>
> it really is strange that the sphere is the fastest on your computer.
>
> Cyrille
>
>
> Le 09/03/2011 19:08, John Harrison a écrit :
>
>> Using Cyrille's test patch for speed which he sent into the list a week or
>> so ago, I tried creating multiple spheres, gemlists, and models. The sphere
>> is getting the best performance results, unfortunately. Attached is my test
>> patch. I just connected [repeat] to either [sphere] [GEMglCallList] or
>> [model] in the patch. The sphere model I used has probably got way too many
>> points (just found it on the 'net) but my hope was that as the vertices were
>> static it wouldn't matter.
>>
>> http://www.eecs.umich.edu/~guskov/eecs598-1/sphere.obj
>>
>> maybe one with less vertices will help. I can try...
>>
>> -John
>>
>> On Wed, Mar 9, 2011 at 9:48 AM, chris clepper > cgclep...@gmail.com>> wrote:
>>
>>A model is the way to go since the vertex data is static.  Ideally for
>> situations like this there would be one object that loads a single model and
>> several clients that just call the display list.  Although there is a lot of
>> memory on GPUs now so 200 models of a sphere won't take up that much.
>>
>>On Wed, Mar 9, 2011 at 10:32 AM, John Harrison <
>> johnharrison...@gmail.com <mailto:johnharrison...@gmail.com>> wrote:
>>
>>
>>
>>
>>On Wed, Mar 9, 2011 at 1:59 AM, cyrille henry <
>> c...@chnry.net <mailto:c...@chnry.net> <mailto:c...@chnry.net > c...@chnry.net>>> wrote:
>>
>>hello,
>>
>>- try using a display list to render a sphere, so that
>> every point don't have to be send for every sphere.
>>see exemple 09.openGL/02.displaylist
>>you can also use a model with a sphere.obj to have the
>> same result.
>>
>>if the spheres are all moving at once, would a display list
>> still help? Seems like recompilation would have to happen for every sphere
>> for every frame? I haven't tried the model yet...
>>
>>yes, the display list will help to render 1 single sphere.
>>you have to call it 200 times.
>>
>>
>>Ok I'm seeing a huge performance difference between using 200 of
>> [sphere  20] and [sphere  30].
>> Huge. So if I want to keep the sphere with 30 points, I'm thinking gemlist
>> or model are my answer. I'll try both and report back, unless you have a
>> strong recommendation for one or the other to save me time.
>>
>>This list is awesome. Where else could I find help like this? :-)
>>
>>-John
>>
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Re: [PD] How do I squeeze more performance out of Gem?

[John Harrison]

Using Cyrille's test patch for speed which he sent into the list a week or
so ago, I tried creating multiple spheres, gemlists, and models. The sphere
is getting the best performance results, unfortunately. Attached is my test
patch. I just connected [repeat] to either [sphere] [GEMglCallList] or
[model] in the patch. The sphere model I used has probably got way too many
points (just found it on the 'net) but my hope was that as the vertices were
static it wouldn't matter.

http://www.eecs.umich.edu/~guskov/eecs598-1/sphere.obj

maybe one with less vertices will help. I can try...

-John

On Wed, Mar 9, 2011 at 9:48 AM, chris clepper  wrote:

> A model is the way to go since the vertex data is static.  Ideally for
> situations like this there would be one object that loads a single model and
> several clients that just call the display list.  Although there is a lot of
> memory on GPUs now so 200 models of a sphere won't take up that much.
>
> On Wed, Mar 9, 2011 at 10:32 AM, John Harrison 
> wrote:
>
>>
>>
>>>> On Wed, Mar 9, 2011 at 1:59 AM, cyrille henry >>> c...@chnry.net>> wrote:
>>>>
>>>>hello,
>>>>
>>>>- try using a display list to render a sphere, so that every point
>>>> don't have to be send for every sphere.
>>>>see exemple 09.openGL/02.displaylist
>>>>you can also use a model with a sphere.obj to have the same result.
>>>>
>>>> if the spheres are all moving at once, would a display list still help?
>>>> Seems like recompilation would have to happen for every sphere for every
>>>> frame? I haven't tried the model yet...
>>>>
>>>>  yes, the display list will help to render 1 single sphere.
>>> you have to call it 200 times.
>>>
>>>
>>> Ok I'm seeing a huge performance difference between using 200 of [sphere
>>  20] and [sphere  30]. Huge. So if
>> I want to keep the sphere with 30 points, I'm thinking gemlist or model are
>> my answer. I'll try both and report back, unless you have a strong
>> recommendation for one or the other to save me time.
>>
>> This list is awesome. Where else could I find help like this? :-)
>>
>> -John
>>
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-- 
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http://alumni.media.mit.edu/~harrison/


sphere-gemlist-model.pd
Description: Binary data
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Re: [PD] How do I squeeze more performance out of Gem?

[John Harrison]

>
>> On Wed, Mar 9, 2011 at 1:59 AM, cyrille henry > c...@chnry.net>> wrote:
>>
>>hello,
>>
>>- try using a display list to render a sphere, so that every point
>> don't have to be send for every sphere.
>>see exemple 09.openGL/02.displaylist
>>you can also use a model with a sphere.obj to have the same result.
>>
>> if the spheres are all moving at once, would a display list still help?
>> Seems like recompilation would have to happen for every sphere for every
>> frame? I haven't tried the model yet...
>>
>>  yes, the display list will help to render 1 single sphere.
> you have to call it 200 times.
>
>
> Ok I'm seeing a huge performance difference between using 200 of [sphere
 20] and [sphere  30]. Huge. So if
I want to keep the sphere with 30 points, I'm thinking gemlist or model are
my answer. I'll try both and report back, unless you have a strong
recommendation for one or the other to save me time.

This list is awesome. Where else could I find help like this? :-)

-John
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Re: [PD] How do I squeeze more performance out of Gem?

[John Harrison]

thanks for these suggestions. Here's how it's going so far:

On Wed, Mar 9, 2011 at 1:59 AM, cyrille henry  wrote:

> hello,
>
> - try using a display list to render a sphere, so that every point don't
> have to be send for every sphere.
> see exemple 09.openGL/02.displaylist
> you can also use a model with a sphere.obj to have the same result.
>

if the spheres are all moving at once, would a display list still help?
Seems like recompilation would have to happen for every sphere for every
frame? I haven't tried the model yet...

>
> - gemhead are slow. i usually have better result using 1 gemhead and 200
> separator, or 200 gemlist, than using 200 gemhead.
>

It actually performed marginally slower with 1 gemhead and 200 sep and also
slower with 200 gemlist

>
> - try to put somewhere :
> [gemhead 1]
> [GEMglLightModeli GL_LIGHT_MODEL_TWO_SIDE GL_FALSE]
>
> it help a lot on my computer (GT 425M), but i don't know on other computer.
> could you try and tell me the performance improvement?
> (you may have to reverse some light to have close lighting result).
>

>From your earlier email thread on this list, I already tried that before. No
difference.


> - don't forget to check that you CPU run fullspeed. (sometimes pd use more
> than 100% cpu, but the cpu monitor fail to detect that and the cpu still run
> at low speed)
>

yeah it appears that happened, but forcing the CPU to run full speed makes
no difference for some reason.


>
> - start pd -noaudio if it is an option.
>

Already was done.

>
> - you can separate the physical model and the other calculation in a
> separate pd instance than Gem. using pd~. This may help
>

If I turn off rendering, CPU usage with physical model being calculated
hovers at about 4%, so this doesn't seem worth the effort. Am I missing
something?

Sending [res 2( to curve also made no difference.


>
> well, i think all of this should be enough to draw 10 time more spheres
> that what you need, at a good fps.
>

So far my mileage is varying! :-)

Thanks for the help. I guess I'll try the model next.

-John

>
> Cyrille
>
> Le 09/03/2011 02:16, John Harrison a écrit :
>
>> I'm working with a high-powered machine but I'm running into a bottleneck
>> with Gem. I'm running at 20fps and at times was intending to have as many as
>> 200+ lines and spheres on a 1024x768 screen. At around 60 lines/spheres I'm
>> already at 50% CPU. I know the problem is Gem because if I stop rendering,
>> CPU immediately drops to less than 4%. There's some other manipulations I
>> use periodically too causing another 40%+ of CPU so I'm a far cry from my
>> 200+ intention while saturating my computational limits. If I turn lighting
>> off, BTW, I already gain 10% CPU back (not an option I want to explore.)
>>
>> I'm not sure what to do and was even considering breaking the rendering
>> into independent screens (this machine has 8 cores), then using pix_share to
>> recombine them in a "master" instance. I'd have to use pix_snap to capture
>> each of the Gem windows in each of the processes, and each one draws about
>> 40% CPU when capturing a 1024x768 buffer at 20 fps so besides creating a
>> headache for myself this is going to be a lot of CPU overhead. I also don't
>> know how the graphics card is fitting into all of this, if it would become a
>> bottleneck at some point, how to tell, etc. What's the "top" command for a
>> graphics card? :-)
>>
>> These lines and spheres are nothing special, btw. No texturing, just
>> translates, colors, and alpha. the lines are made with curves of 2 points
>> each.
>>
>> Is there some trick or some area of programming or using the graphics card
>> I need to be considering? Any thoughts/advice would be appreciated. It's
>> strange --- I don't think I'm seeing performance on this machine much better
>> than on my not-so-special laptop.
>>
>> This machine has Nvidia GeForce GTX 460, Ubuntu 10.10 32 bit, Pd-extended
>> 0.42-5 binary from the Pure Data site, Intel i7 3Ghz. I'm using Nvidia
>> proprietary driver 290.19.06.
>>
>> When I say stuff like "40% CPU" I mean for a single core. So in theory
>> this machine has 800% CPU limit in my nomenclature. But since an instance of
>> Pd/Gem runs on only a single core, I have a limit of 100% for any single
>> Pd/Gem instance (as most of you already know I'm sure.)
>>
>> -John
>>
>> P.S. I'm loving working with Gem and pmpd these days. Awesome stuff, guys!
>> :-)
>>
>>
>>
>>
>>
>>
>>
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[PD] How do I squeeze more performance out of Gem?

[John Harrison]

I'm working with a high-powered machine but I'm running into a bottleneck
with Gem. I'm running at 20fps and at times was intending to have as many as
200+ lines and spheres on a 1024x768 screen. At around 60 lines/spheres I'm
already at 50% CPU. I know the problem is Gem because if I stop rendering,
CPU immediately drops to less than 4%. There's some other manipulations I
use periodically too causing another 40%+ of CPU so I'm a far cry from my
200+ intention while saturating my computational limits. If I turn lighting
off, BTW, I already gain 10% CPU back (not an option I want to explore.)

I'm not sure what to do and was even considering breaking the rendering into
independent screens (this machine has 8 cores), then using pix_share to
recombine them in a "master" instance. I'd have to use pix_snap to capture
each of the Gem windows in each of the processes, and each one draws about
40% CPU when capturing a 1024x768 buffer at 20 fps so besides creating a
headache for myself this is going to be a lot of CPU overhead. I also don't
know how the graphics card is fitting into all of this, if it would become a
bottleneck at some point, how to tell, etc. What's the "top" command for a
graphics card? :-)

These lines and spheres are nothing special, btw. No texturing, just
translates, colors, and alpha. the lines are made with curves of 2 points
each.

Is there some trick or some area of programming or using the graphics card I
need to be considering? Any thoughts/advice would be appreciated. It's
strange --- I don't think I'm seeing performance on this machine much better
than on my not-so-special laptop.

This machine has Nvidia GeForce GTX 460, Ubuntu 10.10 32 bit, Pd-extended
0.42-5 binary from the Pure Data site, Intel i7 3Ghz. I'm using Nvidia
proprietary driver 290.19.06.

When I say stuff like "40% CPU" I mean for a single core. So in theory this
machine has 800% CPU limit in my nomenclature. But since an instance of
Pd/Gem runs on only a single core, I have a limit of 100% for any single
Pd/Gem instance (as most of you already know I'm sure.)

-John

P.S. I'm loving working with Gem and pmpd these days. Awesome stuff, guys!
:-)
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Re: [PD] starting [pd~] causes: tcl: /usr/lib/bin/pd.tk: can't open script

[John Harrison]

I filed this into the bug tracker:

http://sourceforge.net/tracker/index.php?func=detail&aid=3202613&group_id=55736&atid=478070

As I mention in the bug tracker, you can get around the problem by adding
symbolic links:
/usr/lib/bin -> /usr/lib/pd-extended/bin
/usr/lib/extra -> /usr/lib/pd-extended/extra
/usr/lib/docs -> /usr/lib/pd-extended/docs

Anyway, after all that I seem to get better performance with the old model
of running separate Pd instances. I'm not communicating audio between the
instances so running separate instances and using sockets to communicate
between them continues to be a fine solution for me.

-John

On Mon, Mar 7, 2011 at 8:05 AM, Husk 00  wrote:

> On Mon, Mar 7, 2011 at 2:04 PM, John Harrison 
> wrote:
> > When I send [start( to [pd~] I get "tcl: /usr/lib/bin/pd.tk: can't open
> > script" in the command window.
> >
>
> Hi John,
> first try pddir flag to set the pd path. It could works.
> But if it doesn't, as for me, you can try to use pd-vanila (for [pd~])
> in conjunction with pd-extended libraries/externals (the extra dir).
> After a night of pd Chat and testing (different machines, different
> platforms) was the only way to get it working on linux. Seems to
> remember pd~ works correctly on MacOS X.
> I know it's not elegant but it's worked for me. I'm curious to know if
> someone get it working.
> husk
>
>
> > since /usr/lib/bin/pd.tk didn't exist I tried
> > ln -s /usr/lib/pd-extended/bin/pd.tk /usr/lib/bin/pd.tk
> >
> > still no go. I had also been getting other variations of file not found
> for
> > watchdog and pd-gui but symbolic links appeared to fix those:
> > ln -s /usr/lib/pd-extended/bin/pd-watchdog /usr/lib/bin/.
> > ln -s /usr/lib/pd-extended/bin/pd-gui /usr/lib/bin/pd-gui
> >
> >
> > pd 0.42.5-extended downloaded as a binary from the pd site, running on
> > ubuntu Maverick
> >
> > workaround?
> > --
> > John
> >
> >
> > ___
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> >
>
>
>
> --
> when Art become pratical
> we call it technology.
>
> When Technology become useless
> we call it Art
>
> www.estereotips.net
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[PD] starting [pd~] causes: tcl: /usr/lib/bin/pd.tk: can't open script

[John Harrison]

When I send [start( to [pd~] I get "tcl: /usr/lib/bin/pd.tk: can't open
script" in the command window.

since /usr/lib/bin/pd.tk didn't exist I tried
ln -s /usr/lib/pd-extended/bin/pd.tk /usr/lib/bin/pd.tk

still no go. I had also been getting other variations of file not found for
watchdog and pd-gui but symbolic links appeared to fix those:
ln -s /usr/lib/pd-extended/bin/pd-watchdog /usr/lib/bin/.
ln -s /usr/lib/pd-extended/bin/pd-gui /usr/lib/bin/pd-gui


pd 0.42.5-extended downloaded as a binary from the pd site, running on
ubuntu Maverick

workaround?
-- 
John
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Re: [PD] loadbang not sent for dynamically created objects?

[John Harrison]

Cyrille I just tried your solution and the problem is that all objects
sharing the name of the dynamically-created object all get the loadbang
message.

On Sat, Feb 19, 2011 at 1:49 PM, Pedro Lopes  wrote:

> >yes, this is known.
> By known you mean.. Is it on the bug tracker already?
>
> When such things are discovered (and by things I mean issues), shouldn't
> they be documented inside the help patches?
>
> It helps a lot those getting inside pd.
>
> Best,
> pedro
>
>
> On Sat, Feb 19, 2011 at 7:44 PM, cyrille henry  wrote:
>
>> hello,
>>
>> yes, this is known.
>> you have to explicitly send the loadbang, like in this patch, using your
>> exemple.
>> (don't know about initbang, i don't use it)
>> c
>>
>>
>> Le 19/02/2011 20:33, John Harrison a écrit :
>>
>>> is it correct behavior that loadbang will not be called when it is part
>>> of a dynamically created object? See attached. If you load test-do, it will
>>> create an instance of test when you click on the message. Test should print
>>> loadbang and initbang, but it only prints initbang.
>>>
>>>
>>>
>>> --
>>> John
>>>
>>>
>>>
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>
>
> --
> Pedro Lopes (MSc)
> contact: pedro.lo...@ist.utl.pt
> website: http://web.ist.utl.pt/Pedro.Lopes /
> http://pedrolopesresearch.wordpress.com/ |
> http://twitter.com/plopesresearch
>
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[PD] loadbang not sent for dynamically created objects?

[John Harrison]

is it correct behavior that loadbang will not be called when it is part of a
dynamically created object? See attached. If you load test-do, it will
create an instance of test when you click on the message. Test should print
loadbang and initbang, but it only prints initbang.



-- 
John
#N canvas 854 533 450 300 10;
#X obj 214 80 loadbang;
#X obj 216 119 print loadbang;
#X obj 100 79 initbang;
#X obj 102 118 print initbang;
#X connect 0 0 1 0;
#X connect 2 0 3 0;
#N canvas 538 60 879 604 10;
#N canvas 387 681 450 300 creation_pool 1;
#X restore 601 431 pd creation_pool;
#X obj 415 370 s pd-creation_pool;
#X msg 405 325 obj 10 20 test;
#X connect 2 0 1 0;
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Re: [PD] tracking multiblob with constant ID

[John Harrison]

I remember looking into pix_blobtracker but I don't remember why I didn't
use it. In any case, I wrote a Pd abstraction last weekend which I called
nearest-neighbor which I think might do the same thing: it looks for the
shortest euclidean distances between blobs of the current frame with blobs
of the last frame and reorders the blobs in the matrix accordingly. I made a
test patch for tracking 8 blobs --- if pix_multiblob sees less than 8, the
abstraction just copies the missing rows from the last frame --- a real
kludge I know.

Definitely better ways to do this...and...this code is UGLY...but it is
getting the job done for my application at least...

Attached is the abstraction with test patch (multiblob-test).

HTH,

-John

2011/2/18 Jack 

> Ah, good to know. I will give it a try.
> Thanx.
> ++
>
> Jack
>
>
>
> Le vendredi 18 février 2011 à 16:11 +0100, IOhannes zmölnig a écrit :
> > On 02/18/2011 02:07 PM, Jack wrote:
> > > Do you know if there is an external to track multiblob with a constant
> > > ID (the ID doesn't change in the time when two or more blobs move).
> > > For example, with [pix_multiblob], the ID of the blob is given by its
> > > position relative to the lower left corner (or i'm wrong), so it is not
> > > good for my application.
> >
> > there is an abstraction that comes with Gem called [pix_blobtracker]
> > that try to label the blobs (based on a least error algorithm)
> > it uses iemmatrix, but apart from that, no extra externals are involved.
> >
> > gfmadr
> > IOhannes
> >
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>
#N canvas 716 37 839 1031 10;
#X declare -lib iemmatrix;
#X text 452 8 GEM object;
#X obj 9 265 cnv 15 430 145 empty empty empty 20 12 0 14 -233017 -66577
0;
#X text 40 267 Inlets:;
#X text 39 352 Outlets:;
#X obj 9 227 cnv 15 430 30 empty empty empty 20 12 0 14 -195568 -66577
0;
#X text 18 226 Arguments:;
#X obj 8 56 cnv 15 430 165 empty empty empty 20 12 0 14 -233017 -66577
0;
#X text 453 20 Example:;
#X obj 450 392 cnv 15 100 60 empty empty empty 20 12 0 14 -195568 -66577
0;
#N canvas 0 22 450 300 gemwin 0;
#X obj 132 136 gemwin;
#X obj 67 89 outlet;
#X obj 67 10 inlet;
#X msg 67 70 set destroy;
#X msg 198 112 destroy;
#X msg 156 71 set create;
#X obj 67 41 route create;
#X msg 132 112 reset \, create \, 1;
#X connect 2 0 6 0;
#X connect 3 0 1 0;
#X connect 4 0 0 0;
#X connect 5 0 1 0;
#X connect 6 0 3 0;
#X connect 6 0 7 0;
#X connect 6 1 5 0;
#X connect 6 1 4 0;
#X connect 7 0 0 0;
#X restore 455 431 pd gemwin;
#X msg 455 412 destroy;
#X text 451 391 Create window:;
#X obj 451 133 cnv 15 185 120 empty empty empty 20 12 0 14 -24198 -66577
0;
#X obj 451 43 gemhead;
#X text 17 366 Outlet 1: gemlist;
#X text 24 281 Inlet 1: gemlist;
#X obj 449 355 pix_texture;
#X obj 451 111 pix_film;
#X obj 515 111 t f;
#X obj 464 63 bng 25 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
-1;
#N canvas 0 22 450 300 open 0;
#X obj 85 49 inlet;
#X obj 85 237 outlet;
#X obj 85 145 openpanel;
#X msg 85 179 open \$1;
#X msg 259 213 auto 1;
#X obj 259 189 loadbang;
#X connect 0 0 2 0;
#X connect 2 0 3 0;
#X connect 3 0 1 0;
#X connect 4 0 1 0;
#X connect 5 0 4 0;
#X restore 464 91 pd open;
#X text 505 37 open a supported;
#X text 506 48 movie-clip;
#X text 523 74 macOS: quicktime;
#X text 516 64 windos: *.AVI;
#X text 523 84 linux: depends...;
#X floatatom 463 150 3 0 100 2 threshold - -;
#X obj 463 167 / 100;
#X text 71 31 Class: pix object (analysis);
#X obj 450 377 square 4;
#X msg 463 188 treshold \$1;
#X floatatom 553 150 3 0 100 2 blobsize - -;
#X obj 553 167 / 100;
#X msg 553 188 blobSize \$1;
#X text 24 296 Inlet 1: treshold : minimum luminance of a pixel
to be considered part of a blob. (default=0.04);
#X text 24 325 Inlet 1: blobSize : minimum relative size of
a blob. (default=0.1);
#X text 50 12 Synopsis: [pix_multiblob];
#X text 30 58 Description: blob detector (for multiple blobs);
#X text 16 73 [pix_multiblob] is able to detect multiple blobs within
an image.;
#X text 17 103 a "blob" is a number of adjacent(!) pixels with a luminance
that is bigger than the value defined by "treshold". you can set the
minimum size of a blob that is needed to be detected.;
#X text 17 156 the output is a matrix following the conventions of
the mtx-objects from zexy/iemmatrix. each row describes one detected
blob as follows: centerX(weighted) \, centerY(weighted) \, size(weighted)
\, minX \, minY \, maxX \, maxY \, size;
#X text 64 237 int: max number N of blobs to detect;
#X text 17 381 Outlet 2: (k \, 8) matrix: describing k detected blobs
(with 0<=k#N canvas 955 104 892 940 10;
#X obj 319 158 mtx_distance2;
#X obj 411 62 loadbang;
#X obj 476 64 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 

Re: [PD] pd-kinect-skeleton

[John Harrison]

This is great!

To get it working I had to download OSCeleton:
https://github.com/Sensebloom/OSCeleton
which you don't mention in the README

I also had to change the udpreceive in your patch to socket 7110.

Ubuntu 10.10 Pd-extended 0.42-5

-John

On 02/04/2011 08:24 AM, Hans-Christoph Steiner wrote:
OpenNI software reads the camera and then outputs the skeleton 
tracking data via OSC messages. 




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Re: [PD] Fwd: Re: wiimote crashes with moderate cpu load and/or heavy USB transfer

[John Harrison]

it appears that this set of addons
http://l2ork.music.vt.edu/data/pd/l2ork_addons-20101230.tar.gz

includes the help patch (which looks familiar. :-))

-John

On 01/28/2011 02:12 AM, Roman Haefeli wrote:

On Thu, 2011-01-27 at 11:00 -0500, Ivica Ico Bukvic wrote:

It should be included with the actual external.

I'm afraid the archive from:
http://l2ork.music.vt.edu/data/pd/disis_wiimote-0.6.5.tar.gz
doesn't contain a help patch.

Roman



Roman Haefeli  wrote:


On Wed, 2011-01-26 at 20:21 -0500, Ivica Ico Bukvic wrote:

Forgot to copy pd-list...

 Original Message 
Subject: Re: [PD] wiimote crashes with moderate cpu load and/or heavy USB   
transfer
From: Ivica Ico Bukvic
To: John Harrison
CC:

Try disis_wiimote from the L2ork software page which uses threaded 
implementation and is dsp-safe even when sending cues back to wiimote (which 
otherwise cause consistent xruns). We use it regularly even at heavy cpu loads 
and it is rock solid (Linux only).

Cheers!

Is there also help-file / help-patch available for [disis_wiimote]? Or
is it supposed to work the same as the [wiimote] it is based on (can't
test right now).

Roman




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[PD] wiimote crashes with moderate cpu load and/or heavy USB transfer

[John Harrison]

I haven't had a chance to do a lot of testing on this yet, but it appears
that [wiimote] crashes intermittently when there is moderate CPU load on the
system...or...it could also be related to heavy USB usage from other devices
(2 cameras). In any case, I thought I'd see if this is a known problem not
unique to me before I dig too deep. I tried moving the cameras to another Pd
instance so they would be on a different core of the CPU. It might have
slowed the crashing but it didn't solve it.

Even with no other CPU load or USB usage of other devices, it appears to
crash occasionally...

Ubuntu 10.10
[wiimote] from the binaries of /reduzierer/rdz...

-John
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Re: [PD] Pd-extended and Firefox

[John Harrison]

using JACK is the best way to go in terms of performance and low 
latency. If you don't care about latency in Pd and don't want to muck 
with settings, you can just do:


aoss pd -oss

and everything will cooperate together, with something like a 200ms 
latency in Pd.


Previously I tried using JACK as the backend for pulseaudio as Pedro is 
suggesting. It works pretty well except that it was set up on my laptop 
and things would get screwy after my laptop would wake up from 
hibernation. I'm sure that's solvable but at the time I gave up after 
spending too long playing with hibernation scripts trying to solve it 
and achieving inconsistent results.


-John

On 01/15/2011 10:03 AM, Pierre Massat wrote:

Thanks for your reply Pedro.
I don't think i really need to use firefox and pd together, i was just 
wondering why this was happening. Now i know!

Thanks!

Pierre

2011/1/15 Pedro Lopes >


PD gains control of Alsa, thus firefox cannot play audio.
Tha trick is using firefox through jack, and pd too. Search the
archives of this mailing list, this has been talked - i recall.

By the way, what you want is called Jack pulseaudio sink.

as here: http://www.youtube.com/watch?v=yjH1maNxR_M

:)
best regards

On Sat, Jan 15, 2011 at 3:15 PM, Pierre Massat mailto:pimas...@gmail.com>> wrote:

Hi list!

I just downloaded pd-extended .42 on ubuntu 10.04, and there's
something strange (to me) :
I was listening to some music on a bandcamp page, and i
installed pd and strated it to see if it was working alright.
It is working alright indeed, but the music in bandcamp (in
firefox) freezes when pd is running. It just stops playing, as
if on pause. Everything works fine again when i close Pd.

Is this normal or is it some kind of a bug?

Pierre

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-- 
Pedro Lopes (MSc)

contact: pedro.lo...@ist.utl.pt 
website: http://web.ist.utl.pt/Pedro.Lopes



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Re: [PD] libraries in Pd-extended 0.43

[John Harrison]

If it were up to me, we'd keep all of Sevy's stuff in Pd-extended. The
licenses Sevy offers conflict with the licenses of much of the software it
borrows from (for example EffecTV) so they are invalid anyway. But I
understand that this may not sit ethically with others so my second
suggestion is, for the benefit of the Pd community, to keep all of Sevy's
stuff that was released under GPL in whatever version it existed in at that
point. I believe this is already Han's plan and I support it.

For me, I'm going to use Sevy's stuff as if it is GPL. For example, I'm
looking forward to the military contract I am expecting of torturing people,
and at that point I think I'll make excellent use of PiDiP. I'll let Sevy
sue me then.

I don't buy the argument that the Sevy's stuff should be removed out of
respect for the author, as this argument conflicts with a more compelling
argument of respect for the community, for free software, and for the GPL
license. It is weird and uncomfortable to me that "one of our own" would
impose restrictions on the use of their software that even the infamous
Microsoft wouldn't consider. I can't support such a position.

-John

On Tue, Dec 14, 2010 at 8:53 AM, ydego...@gmail.com wrote:

> i want my stuff to be taken out of pd-extended
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Re: [PD] new license for pidip and unauthorized WAS: pd-pidip into Debian

[John Harrison]

I was curious, since EffecTV is GPL and a significant part of PiDiP is a 
port of EffecTV --- does this make an impact on what licenses are valid 
for PiDiP?


-John

On 12/05/2010 07:03 PM, Hans-Christoph Steiner wrote:


berlios is based in Germany, but I think they have similar 
restrictions on the license.


.hc

On Dec 5, 2010, at 2:50 PM, ydego...@gmail.com wrote:


ola,


you're totally right that we should get out of sourceforge,
that grants more rights to US citizens than to others.

we can find a domain in .fi, .de, .ch or .nl,
if you know what i mean.

so yeh you can remove unauthorized and pidip from sourceforge.

ciao,
sevy

pd _ and could you leave me in peace _forever_ ? thank you

Hans-Christoph Steiner wrote:


You'll also have to consider SourceForge's Terms of Use, which seem 
to disallow software with licenses that do not fit into the Open 
Source Definition.


(from 
http://sourceforge.net/apps/trac/sitelegal/wiki/What%20projects%20qualify%20for%20hosting%20at%20SourceForge.net?)


# The software involved must be licensed under an Open Source license.


(from 
http://sourceforge.net/apps/trac/sitelegal/wiki/Controversial%20project%20hosting)

Notes on the application of the Open Source Definition ¶

The Open Source Definition requires that all Open Source licenses 
not limit the ways or people that are permitted to use the software. 
Though some developers of software may wish to prevent illegitimate 
use, the following should be kept in mind:


   * You can't restrict the way folks use your software, only make 
recommendations. That is: You cannot say that your software will not 
be used to commit a crime, or for military purposes; but you can 
recommend against breaking laws or using the software for military 
purposes, or the operaton of nuclear power facilities. No 
discrimination against purpose of use.
   * You can't restrict who can use your software: business, 
military, individuals, individuals with past criminal record can all 
use your software alike. No discrimination against people.
   * You can't license your software to prohibit use by T7 
countries, but you can include clauses to note the requirements 
placed on the licensee by the US Government, and state that users 
should abide by all applicable laws.


.hc

On Dec 3, 2010, at 11:16 AM, ydego...@gmail.com wrote:


ola,

pidip and unauthorized are now published with a  non-standard license
that says :



the code published here can be studied,
modified, used by anyone that
provides all the original credits
and sources in derivative projects.

there are restrictions on its use,
it cannot be used for :

* military amd/or repressive use
* commercial installations and products
* any project that promotes : racism, nationalism, xenophobia, sexism,
homophobia, religious hatred or missionarism .. ( expandable list)

this is not a standard license.

sevy.



ciao,
sevy



 



I hate it when they say, "He gave his life for his country."  Nobody 
gives their life for anything.  We steal the lives of these kids.  
-Admiral Gene LeRocque









 



If you are not part of the solution, you are part of the problem.



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Re: [PD] pd-pidip into Debian

[John Harrison]

Yves:

It's your code so you get to choose. From my standpoint as an educator,
removal of PiDiP from pd-extended is very unfortunate. I hope at some point
you reconsider your position.

-John

On Tue, Nov 23, 2010 at 10:46 AM, ydego...@gmail.com wrote:

>
> good!!! i'm free to do what i like now!!!
>
> yeh!
>
> sevy
>
> Hans-Christoph Steiner wrote:
>
>>
>> Ok, will do. I also have to remove pidip from Pd-extended based on this
>> license.
>>
>> .hc
>>
>> On Nov 23, 2010, at 7:18 AM, ydego...@free.fr wrote:
>>
>>  jooo, que espeso ...
>>>
>>> i told you 1 times not to package my stuff,
>>> that i'm happy with the packages of goto10...
>>>
>>> so [EOC]
>>>
>>>
>>> ciao,
>>> sevy
>>>
>>>
>>> Hans-Christoph Steiner wrote:
>>>

 Hey Lluis and Yves,

 I see that puredyne has packaged pidip, so it should be pretty easy to
 get it into Debian. The only problem is the license. If it was a straight
 BSD or GPL license, then it would be fine. The problem is this line:

 NOT FOR MILITARY OR REPRESSIVE USE !!!

 That isn't free according to the Debian Free Software Guidelines.

 .hc

 


 As we enjoy great advantages from inventions of others, we should be
 glad of an opportunity to serve others by any invention of ours; and this 
 we
 should do freely and generously. - Benjamin Franklin





>>>
>>
>>
>>
>>
>> 
>>
>>
>> Programs should be written for people to read, and only incidentally for
>> machines to execute.
>> - from Structure and Interpretation of Computer Programs
>>
>>
>>
>
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Re: [PD] unable to open pdp_v4l webcam video stream

[John Harrison]

That's a huge amount of latency. Do you see that sort of latency if you 
use the webcam in guvcview?


For a cheap webcam with low latency I've had great luck with the Sony 
ps3eye. It works out of the box on Linux (ubuntu at least) but if you 
compile your own driver for it you can get even better performance:

http://bear24rw.blogspot.com/2009/11/ps3-eye-driver-patch.html



On 11/20/2010 02:05 PM, Menno van der Woude wrote:

The latency with this webcam is amazingly long, as in a second or more.



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Re: [PD] opencv

[John Harrison]

I compiled pdp_openCV not that long ago on ubuntu 10.4. I don't remember how
I did it but I think that's because it was pretty straightforward and went
without hitch. It all worked pretty well as I recall. No big surprises. The
help patches got me started.

But do you need that for a laser tracker? Seems like pix_subtract and
pix_blob would do the job... Max Neupert has some nice patches using this
technique IIRC:
http://web.uni-weimar.de/medien/wiki/Bewegungsmelder

You could also use pix_blob's color weight inlet effectively since you know
you are looking for red.

-John

On Thu, Oct 28, 2010 at 2:22 PM, Pagano, Patrick
wrote:

> I would like to make a laser tracker that tracks the points from a red
> laser beam.
> I would like to see if I can use pdp_ openCV to track the laser and when I
> hover the laser over some video long enough it acts as a click, is this
> possible?
>
> Thanks for the cool link!
>
>
>
> -Original Message-
> From: ydego...@gmail.com [mailto:ydego...@gmail.com]
> Sent: Thursday, October 28, 2010 2:33 PM
> To: Pagano, Patrick; PD List
> Subject: Re: [PD] opencv
>
>
> there are already some work made with pd_opencv
>
> http://vimeo.com/8195788
>
> i dunno what more explanations you need,
> just be curious and inventive
>
> ciao,
> sevy
>
> Pagano, Patrick wrote:
> >
> > So far I have not seen anything besides help patches that explain it's
> > use. Has anyone at all made a working patch, say a laser tracker?
> > Anything using pix_ or pdp_ openCV stuff?
> >
> > *From:* pd-list-boun...@iem.at [mailto:pd-list-boun...@iem.at] *On
> > Behalf Of *Jose Luis Santorcuato
> > *Sent:* Thursday, October 28, 2010 1:09 PM
> > *To:* Claude Heiland-Allen
> > *Cc:* pd-list@iem.at
> > *Subject:* Re: [PD] opencv
> >
> > Hi, Search in torrents Learning Open CVOreilly media... the Pd OCV
> > reserch is based in this book...
> >
> > Best regards
> >
> > José
> >
> > 2010/10/28 Claude Heiland-Allen  > >
> >
> > On 28/10/10 17:39, Philip Cunningham wrote:
> >
> > Hello list,
> >
> > I wonder if there are any tutorials available on how to use OpenCV
> > with Pd? I'm trying to download necessary components using the
> > following site:
> > http://www.hangar.org/wikis/lab/doku.php?id=start:puredata_opencv but
> > having very little luck. Operating system is Ubuntu 10.4.
> >
> > You could try the Puredyne PPA for pd-pdp-opencv (available right
> > nownow) and pd-pix-opencv packages (available soon..) for Lucid:
> >
> > https://launchpad.net/~puredyne-team/+archive/ppa
> > 
> >
> >
> > Claude
> >
> >
> >
> > ___
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> >
> >
> >
> > --
> > http://arselectronicachile.blogspot.com
> > http://www.myspace.com/santorcuato
> > http://comunicacionnativa.blogspot.com/
> >
> >
> >
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Re: [PD] pduino + arduino UNO

[John Harrison]

how was this solved?

On Tue, Oct 19, 2010 at 8:30 AM, alessandro contini  wrote:

> solved.
> thanks a lot anyway.
>
>
>
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Re: [PD] PS3 eye, Pix_video, low latency

[John Harrison]

if it helps...

I have now used the ps3eye in Linux with multiple machines and really
excellent results with low latency in Gem and pdp/pidip. Yes you do have to
compile the driver for it but it really isn't too bad. I posted directions
for how I do this at:

http://bear24rw.blogspot.com/2009/11/ps3-eye-driver-patch.html

in my
comment dated May 9, 2010. I can confirm that this works with the last few
versions of ubuntu at least. Just did it again for another machine last week
even. Doesn't seem to be any complications with the compile process once you
have the steps down.

-john

On Thu, Oct 14, 2010 at 6:54 AM, Husk 00  wrote:

> On Thu, Oct 14, 2010 at 1:53 PM, ydego...@gmail.com wrote:
>
>>
>>> ola,
>>
>> yes it's not compiled in pd-extended,
>> you have to get pidip sources
>> and install libdc1394-22-dev..
>> and then compile pidip.
>>
>> this is something lluis did recently
>> that was never included in pd-extended..
>> neither in pure:dyne packages.
>>
>> ciao,
>> sevy
>>
>
>
> Good to know, thanks!
> husk
>
>
>
>>  --
>>> when Art become pratical
>>> we call it technology.
>>>
>>> When Technology become useless
>>> we call it Art
>>>
>>> www.estereotips.net 
>>>
>>
>>
>
>
> --
> when Art become pratical
> we call it technology.
>
> When Technology become useless
> we call it Art
>
> www.estereotips.net
>
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Re: [PD] GEM: borderless window is also always on top (and hasn't an icon)

[John Harrison]

if there is no solution within Pd you could always use Devilspie:

http://live.gnome.org/DevilsPie

I use that app a lot with much success for issues like this.

On Sat, Oct 2, 2010 at 1:06 PM, Matteo Sisti Sette <
matteosistise...@gmail.com> wrote:

> Hi,
>
> In ubuntu, if I send "border 0" to [gemwin], then the window (once
> created), besides being borderless which is the expected part, also sticks
> on top and doesn't have a button in the panel on the bottom of the screen as
> windows usually have.
>
> Not so in Windows, where it just creates a borderless window which, a part
> being borderless, behaves as any other window.
>
> Is there a way in Linux to get a gem window that is simply borderless
> without sticking on top and without having to renounce to the panel button??
>
> thanks
> m.
>
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Re: [PD] live pd patch mixed with Gem or pdp?

[John Harrison]

ok I got the modules to load by reloading the kernel image

   sudo apt-get install --reinstall linux-image-`uname -r`
   sudo depmod -a

now Yves solution works with pdp_v4l.

although modprobe v4l2loopback seems to work, Iohannes's incantation to 
launch the pipeline returns: WARNING: erroneous pipeline: no element 
"v4l2loopback"


also /dev/video3 becomes available when I modprobe v4l2loopback but 
nothing can seem to access it --- invalid argument errors.


Assuming I can configure webcamstudio to autostart with the 
configuration I need tho, I should be all set at this point.


Thanks for help!

-John

On 08/30/2010 11:59 PM, John Harrison wrote:
bleh I'm failing to get either v4l2loopback or webcamstudio modules to 
actually load.


I'm running ubuntu Lucid 10.04 with 2.6.32-24-generic kernel

v4l2loopback svn builds and installs ok

however, modprobe v4l2loopback returns in dmesg:

[   46.328926] v4l2loopback: disagrees about version of symbol
video_unregister_device
[   46.328929] v4l2loopback: Unknown symbol video_unregister_device
[   46.328996] v4l2loopback: disagrees about version of symbol
video_device_alloc
[   46.328998] v4l2loopback: Unknown symbol video_device_alloc
[   46.329091] v4l2loopback: disagrees about version of symbol
video_register_device
[   46.329093] v4l2loopback: Unknown symbol video_register_device
[   46.329178] v4l2loopback: disagrees about version of symbol
video_device_release
[   46.329179] v4l2loopback: Unknown symbol video_device_release

similarly, modprobe webcamstudio returns in dmesg:

[   39.281212] webcamstudio: disagrees about version of symbol
video_devdata
[   39.281215] webcamstudio: Unknown symbol video_devdata
[   39.281309] webcamstudio: disagrees about version of symbol
video_unregister_device
[   39.281311] webcamstudio: Unknown symbol video_unregister_device
[   39.281376] webcamstudio: disagrees about version of symbol
video_device_alloc
[   39.281377] webcamstudio: Unknown symbol video_device_alloc
[   39.281446] webcamstudio: disagrees about version of symbol
video_register_device
[   39.281448] webcamstudio: Unknown symbol video_register_device
[   39.281551] webcamstudio: disagrees about version of symbol
video_device_release
[   39.281553] webcamstudio: Unknown symbol video_device_release

a reboot doesn't help.

-John

On 08/30/2010 11:40 AM, ydego...@gmail.com wrote:

ola,

pdp_capture was working once with an old version of ImageMagick
but anyway it was too slow,
so now its compilation is made optional,
it is a bit abandonware..

use webcamstudio instead ( http://www.ws4gl.org/ ),
it does the same as gstreamer that Iohannes recommends,
but with an interface...
it will output the screenshots to a vloopback device ..

about the disposition on the screen, no eye deer ..

ahoj!
sevy

John Harrison wrote:
is there a way to do these screenshots such that they don't actually 
show up on a screen visible to the user i.e I don't have to show the 
raw Pd patch to the user, only the mix? This is a 2-headed machine 
(one machine --- I'll use 2 if I absolutely have to) and the plan is 
to show a Gem or pdp window fullscreen on one head and a pdp window 
fullscreen on the other. This leaves me not sure where to put the Pd 
patch for the screenshots.


On Mon, Aug 30, 2010 at 10:44 AM, IOhannes m zmoelnig 
mailto:zmoel...@iem.at>> wrote:


On 2010-08-30 17:04, John Harrison wrote:
> I'd like to take a patch from a pd window and mix it live with a
Gem or pdp
> window. pdp_capture would have been the ticket, but I can't get
it to
> compile and looking at the archives of this list, it doesn't
seem like
> others have had luck with it either. Any other ideas for me?
>

a bit complicated, but you can do that by doing screenshots with
gstreamer, send it to a videoloopback device and read that (with 
pdp,

Gem, GridFlow or whatelse)

- get v4l2loopback (http://code.google.com/p/v4l2loopback/)
 compile, install, load the module
- get gst-v4l2loopback 
(http://github.com/umlaeute/gst-v4l2loopback)

 compile (need gst-plugin-base-dev), install

run the gstreamer-pipeline, e.g.
$ gst-launch ximagesrc use-damage=false startx=0 starty=0 endx=640
endy=480 ! queue ! ffmpegcolorspace ! v4l2loopback

access the video using [pix_video], [pdp_v4l2] [#camera] or cat


running here.
this of course only grabs a portion of the screen, rather than a
window
and track that...

fgmadfs
IOhannes



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Re: [PD] live pd patch mixed with Gem or pdp?

[John Harrison]

bleh I'm failing to get either v4l2loopback or webcamstudio modules to 
actually load.


I'm running ubuntu Lucid 10.04 with 2.6.32-24-generic kernel

v4l2loopback svn builds and installs ok

however, modprobe v4l2loopback returns in dmesg:

   [   46.328926] v4l2loopback: disagrees about version of symbol
   video_unregister_device
   [   46.328929] v4l2loopback: Unknown symbol video_unregister_device
   [   46.328996] v4l2loopback: disagrees about version of symbol
   video_device_alloc
   [   46.328998] v4l2loopback: Unknown symbol video_device_alloc
   [   46.329091] v4l2loopback: disagrees about version of symbol
   video_register_device
   [   46.329093] v4l2loopback: Unknown symbol video_register_device
   [   46.329178] v4l2loopback: disagrees about version of symbol
   video_device_release
   [   46.329179] v4l2loopback: Unknown symbol video_device_release

similarly, modprobe webcamstudio returns in dmesg:

   [   39.281212] webcamstudio: disagrees about version of symbol
   video_devdata
   [   39.281215] webcamstudio: Unknown symbol video_devdata
   [   39.281309] webcamstudio: disagrees about version of symbol
   video_unregister_device
   [   39.281311] webcamstudio: Unknown symbol video_unregister_device
   [   39.281376] webcamstudio: disagrees about version of symbol
   video_device_alloc
   [   39.281377] webcamstudio: Unknown symbol video_device_alloc
   [   39.281446] webcamstudio: disagrees about version of symbol
   video_register_device
   [   39.281448] webcamstudio: Unknown symbol video_register_device
   [   39.281551] webcamstudio: disagrees about version of symbol
   video_device_release
   [   39.281553] webcamstudio: Unknown symbol video_device_release

a reboot doesn't help.

-John

On 08/30/2010 11:40 AM, ydego...@gmail.com wrote:

ola,

pdp_capture was working once with an old version of ImageMagick
but anyway it was too slow,
so now its compilation is made optional,
it is a bit abandonware..

use webcamstudio instead ( http://www.ws4gl.org/ ),
it does the same as gstreamer that Iohannes recommends,
but with an interface...
it will output the screenshots to a vloopback device ..

about the disposition on the screen, no eye deer ..

ahoj!
sevy

John Harrison wrote:
is there a way to do these screenshots such that they don't actually 
show up on a screen visible to the user i.e I don't have to show the 
raw Pd patch to the user, only the mix? This is a 2-headed machine 
(one machine --- I'll use 2 if I absolutely have to) and the plan is 
to show a Gem or pdp window fullscreen on one head and a pdp window 
fullscreen on the other. This leaves me not sure where to put the Pd 
patch for the screenshots.


On Mon, Aug 30, 2010 at 10:44 AM, IOhannes m zmoelnig 
mailto:zmoel...@iem.at>> wrote:


    On 2010-08-30 17:04, John Harrison wrote:
> I'd like to take a patch from a pd window and mix it live with a
Gem or pdp
> window. pdp_capture would have been the ticket, but I can't get
it to
> compile and looking at the archives of this list, it doesn't
seem like
> others have had luck with it either. Any other ideas for me?
>

a bit complicated, but you can do that by doing screenshots with
gstreamer, send it to a videoloopback device and read that (with 
pdp,

Gem, GridFlow or whatelse)

- get v4l2loopback (http://code.google.com/p/v4l2loopback/)
 compile, install, load the module
- get gst-v4l2loopback (http://github.com/umlaeute/gst-v4l2loopback)
 compile (need gst-plugin-base-dev), install

run the gstreamer-pipeline, e.g.
$ gst-launch ximagesrc use-damage=false startx=0 starty=0 endx=640
endy=480 ! queue ! ffmpegcolorspace ! v4l2loopback

access the video using [pix_video], [pdp_v4l2] [#camera] or cat


running here.
this of course only grabs a portion of the screen, rather than a
window
and track that...

fgmadfs
IOhannes



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Re: [PD] live pd patch mixed with Gem or pdp?

[John Harrison]

is there a way to do these screenshots such that they don't actually show up
on a screen visible to the user i.e I don't have to show the raw Pd patch to
the user, only the mix? This is a 2-headed machine (one machine --- I'll use
2 if I absolutely have to) and the plan is to show a Gem or pdp window
fullscreen on one head and a pdp window fullscreen on the other. This leaves
me not sure where to put the Pd patch for the screenshots.

On Mon, Aug 30, 2010 at 10:44 AM, IOhannes m zmoelnig wrote:

> On 2010-08-30 17:04, John Harrison wrote:
> > I'd like to take a patch from a pd window and mix it live with a Gem or
> pdp
> > window. pdp_capture would have been the ticket, but I can't get it to
> > compile and looking at the archives of this list, it doesn't seem like
> > others have had luck with it either. Any other ideas for me?
> >
>
> a bit complicated, but you can do that by doing screenshots with
> gstreamer, send it to a videoloopback device and read that (with pdp,
> Gem, GridFlow or whatelse)
>
> - get v4l2loopback (http://code.google.com/p/v4l2loopback/)
>  compile, install, load the module
> - get gst-v4l2loopback (http://github.com/umlaeute/gst-v4l2loopback)
>  compile (need gst-plugin-base-dev), install
>
> run the gstreamer-pipeline, e.g.
> $ gst-launch ximagesrc use-damage=false startx=0 starty=0 endx=640
> endy=480 ! queue ! ffmpegcolorspace ! v4l2loopback
>
> access the video using [pix_video], [pdp_v4l2] [#camera] or cat
>
>
> running here.
> this of course only grabs a portion of the screen, rather than a window
> and track that...
>
> fgmadfs
> IOhannes
>
>
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[PD] live pd patch mixed with Gem or pdp?

[John Harrison]

I'd like to take a patch from a pd window and mix it live with a Gem or pdp
window. pdp_capture would have been the ticket, but I can't get it to
compile and looking at the archives of this list, it doesn't seem like
others have had luck with it either. Any other ideas for me?

-- 
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[PD] small patch for [pdp_mix]

[John Harrison]

I just submitted 2 trivial patches for [pdp_mix]. Not sure if sevyves or 
somebody else needs to review/consider/submit:


   when crossfade is set to 1 for [pdp_mix], outlet should return exact
   copy of middle inlet. Instead [pdp_mix] still tries to mix the left
   and middle inlet, resulting in slight degradation of the resulting
   video. Consequently, a feedback loop connecting [pdp_mix] outlet to
   its middle inlet through a [pdp_del] with crossfade set to 1 will
   eventually result in a video that is completely black.

   This patch adds a trivial copy from the middle inlet to the outlet
   if the crossfade is set to 1.

Here are the links to the patches, one for mmx and one for portable (no 
mmx):


https://sourceforge.net/tracker/?func=detail&aid=3050324&group_id=55736&atid=478072
https://sourceforge.net/tracker/?func=detail&aid=3050325&group_id=55736&atid=478072

Thanks,

-John
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Re: [PD] GEM: pix_film terribly slow in Ubuntu

[John Harrison]

I don't have problems with codec performance in ubuntu 10.04. I would 
try playing the videos with mplayer, totem and/or vlc to see if the 
performance problem is a codec one. Also do you have a graphics driver 
with 3D hardware acceleration? if you type


glxinfo | grep direct

is direct rending a Yes or a no?

(if you don't have glxinfo installed, it's in mesa-utils i.e. sudo 
apt-get install mesa-utils)


-John

On 08/15/2010 03:53 PM, Matteo Sisti Sette wrote:

Hi,

I'm trying to play some mpeg4 and h.264-encoded video files with 
pix_film in Ubuntu 10.04, and it is terribly slow: it reads about 4-5 
frames per second and eat 100% of the CPU.


The files have aproximately 900x500 resolution, which is nothing 
exagerate; and even Adobe Flash Player can reproduce the same files 
seamlessly at their full (25fps) rate without consuming more than 
about 40-50% of the CPU.


Any idea of what the issue can be? Is it the codecs? I guess I have 
whatever codecs came with the Ubuntu distro. Are there any codecs with 
better performance that I should insall?

Or is this the best performance I can expect under linux?

Thanks
m.

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Re: [PD] Streaming GEM Visuals

[John Harrison]

Sorry obviously *not* WinXP but I do use it in Linux all the time. Ubuntu
variants...

On Tue, May 25, 2010 at 11:42 AM, John Harrison
wrote:

> i use [gem2pdp] and works for me. WinXP and Linux. Pd-extended 41.4 I
> think...
>
> Make sure you are in the right colorspace. I remember some issues with that
> and [gem2pdp]...
>
> On Tue, May 25, 2010 at 11:32 AM, Ben Baker-Smith 
> wrote:
>
>> Hello,
>>
>> I'm looking for a software solution to converting GEM visuals to streaming
>> video on the web.
>> [gem2pdp] appears to be broken, so [pdp_theonice~] is out.
>>
>> I would like to do this on remote servers and virtual servers, so a
>> hardware loop (video out, scan converter, video in) won't work.
>>
>> My ultimate goal is to create live, self-generative visuals that are
>> streamed over the web using a server with Pd/GEM and some streaming software
>> (preferably not flash, since the Flash Media Live Encoder (FMLE) wasn't
>> really friendly with Linux or the command line last I checked).
>>
>> Thanks,
>>
>> Ben Baker-Smith
>> --
>> http://bitsynthesis.com
>>
>>
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>
>
> --
> John
> http://alumni.media.mit.edu/~harrison/<http://alumni.media.mit.edu/%7Eharrison/>
>



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Re: [PD] Streaming GEM Visuals

[John Harrison]

i use [gem2pdp] and works for me. WinXP and Linux. Pd-extended 41.4 I
think...

Make sure you are in the right colorspace. I remember some issues with that
and [gem2pdp]...

On Tue, May 25, 2010 at 11:32 AM, Ben Baker-Smith wrote:

> Hello,
>
> I'm looking for a software solution to converting GEM visuals to streaming
> video on the web.
> [gem2pdp] appears to be broken, so [pdp_theonice~] is out.
>
> I would like to do this on remote servers and virtual servers, so a
> hardware loop (video out, scan converter, video in) won't work.
>
> My ultimate goal is to create live, self-generative visuals that are
> streamed over the web using a server with Pd/GEM and some streaming software
> (preferably not flash, since the Flash Media Live Encoder (FMLE) wasn't
> really friendly with Linux or the command line last I checked).
>
> Thanks,
>
> Ben Baker-Smith
> --
> http://bitsynthesis.com
>
>
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Re: [PD] Linux, video1394 support?

[John Harrison]

I just used it on ubuntu Karmic with extended 41.4. Worked great.

On Tue, May 11, 2010 at 9:44 AM, Pagano, Patrick
wrote:

> pdp_ieee1394 was originally for OSX and is not in all pd-extended(s) for
> linux
>
> pp
>
>
>
> -Original Message-
> From: pd-list-boun...@iem.at [mailto:pd-list-boun...@iem.at] On Behalf Of
> IOhannes m zmoelnig
> Sent: Tuesday, May 11, 2010 10:42 AM
> To: John Harrison
> Cc: PD List
> Subject: Re: [PD] Linux, video1394 support?
>
> [On 2010-05-11 16:38, John Harrison wrote:
> > so [pdp_ieee1394] isn't working? From there you could use [pix_2gem]
> >
>
> afaik, [pdp_ieee1394] is a pdp-clone of the videoDV backend of Gem;
> everything that applies to Gem's "dv" support should also apply to
> [pdp_ieee1394].
>
> my information might be outdated, though.
>
> fgamsdr
> IOhannes
>
>


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Re: [PD] Linux, video1394 support?

[John Harrison]

so [pdp_ieee1394] isn't working? From there you could use [pix_2gem]


2010/5/11 András Murányi 

>
> On Tue, May 11, 2010 at 4:08 PM, IOhannes m zmoelnig wrote:
>
>> On 2010-05-11 15:54, Michal Seta wrote:
>> > Hello,
>> >
>> > I have been trying to get a Point Grey Firefly (firewire) camera
>> > working in Linux (Karmic).  It works fine with ReactiVision and
>> > coriander (the only 2 apps I tried).  In pd, I was preferring
>> > [pix_video] but neither v4l2 driver nor dv1394 works (I believe this
>> > is a dc camera).
>>
>>
>> [pix_video] has no support for IIDC cameras yet.
>> it's planned for the next release, however.
>>
>> the "dv" backend in pix_video refers to camcorder's (those ieee1394
>> cameras that don't work with coriander); it doesn't work with the new
>> juju stack, however (found in recent linux kernels; most distributions
>> seem to only ship this new stack :-()
>>
>>
> AFAIK the RT kernel still has the old stack
>
> Andras
>
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Re: [PD] video grid

[John Harrison]

maybe here?
http://pure-data.svn.sourceforge.net/viewvc/pure-data/trunk/externals/pdvjtools/

On Mon, May 3, 2010 at 10:35 AM, xose ventosela wrote:

> Hi I was missing myself along the net when I found this
>
> http://www.oktopus.tv/puredata-vjtools/
>
> I tried the links but contents aren´t avaliable anymore.I´specially
> interested on the videogrid as I´m working on a video mixer.
> Any one can help me?
>
> Thanks in advance guys!! I would never begin whith pure data without this
> mailing list!!!
>
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Re: [PD] tabread4~ "broken" interpolation algorithm - was Re: Max Smoother Audio than Pd?

[John Harrison]

The link works and extracts fine here in WinXP SP3. I used the built-in
"compressed (zipped) folders" tool in the explorer shell.

On Mon, Mar 29, 2010 at 11:38 AM, Matteo Sisti Sette <
matteosistise...@gmail.com> wrote:

> cyrille henry escribió:
>
>
>>
>> Matteo Sisti Sette a écrit :
>>
>>> By the way tabread4c~ is not in Pd Extended, is it?
>>>
>> no. it is there : http://www.chnry.net/ch/?083-Nusmuk-audio
>>
>
> Hi,
> I downloaded the zip file but Windows tells me he can't open it.
> Is it something different than a "normal" .zip file?
>
> (it says "linux" but I thought it may include the source code...)
>
> The downloaded file size is about 54k (not 57.5 as stated in the page), so
> I tried re-downloading it (after clearing the browser cahce) but no luck...
>
>
> --
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> matteosistise...@gmail.com
> http://www.matteosistisette.com
>
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Re: [PD] image grid in GEM

[John Harrison]

you could try [makefilename] to generate the filenames to continually update
the images.
and take a look at [gemlist] to make your grid. Seems to me a couple of
[until]s with [gemlists] might be a fun way to solve this.
and yeah definitely [pix_texture] not [pix_draw] for speed, as others have
said.

-John

2010/3/4 Fränk Zimmer 

> Hi Ben,
> great work your patch.- - But do you think, that I could keep the images
> dynamic and take always new images ? The images would be always in the same
> folder, incremented by one: image 20, image 21, ...
> thanks !
> fraenk
>
>
>
> B. Bogart schrieb:
>
>  Hi Frank,
>>
>> Use "rectangle", not pix_draw (its slow)
>>
>> If you can put images in a pix_buffer it'll be really fast.
>>
>> Here is a 3x3 grid of images in gem (with lots of extra complexity)
>>
>> http://www.ekran.org/pd/patches/gem-image-grid.tgz
>>
>> ..b..
>>
>> Fränk Zimmer wrote:
>>
>>> Hi,
>>> I did an image grid in Processing.- Every 10sec a routine is looking
>>> images in a folder and displays them in an image grid of 8x8 images.
>>> The Processing sketch does not run very stable, so I would like to know ,
>>> if already somebody did try this in Pd.- Is there a more clever way, than
>>> using [pix_draw] and [translate] for this?
>>> thanks.-
>>> best, fraenk
>>>
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>>
>
> --
>
> Fränk Zimmer
>
> visit: http://fz.mur.at
>
>
>
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Re: [PD] Window focus in gem

[John Harrison]

Since you are on Linux one kludge might be to use devilspie
to force focus to a
particular window?

On Thu, Feb 18, 2010 at 9:19 AM, James Dunn  wrote:

>  Hi list,
>
> I have a patch where I'm running the audio in one instance of pd and gem in
> another with -noaudio.
> I have the audio pd patch sending the output of [keyname] to gem pd via
> [netsend], but after starting the patch in fullscreen the audio pd patch
> loses the window focus. It works to begin with for a few keystrokes, then I
> can no longer control the audio. I have a [gemkeyname] object in the gem
> patch which then takes over (presumably triggered by the gem activity that
> was controlled from the audio pd patch), but I lose the audio pd control.
> I tried adding another netsend (on a different port) back to the audio pd,
> but then I get some double triggers!
>
> So, what is the best way to maintain focus on one particular window? It
> would be fine if the gem window has focus all the time, or the audio pd
> window but I haven't worked out how and why it changes. I'm using Ubuntu
> Hardy and pd-extended-0.42.5.
>
> thanks
>
> James
>
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Re: [PD] FT232 and PD (OSX)

[John Harrison]

On Mon, Dec 7, 2009 at 10:52 AM, Kyle Klipowicz  wrote:

> Not exactly, the Arduino Duemilanove uses the ATmega168 chip. I have no
> knowledge of the FT232.
>

It uses the FT232 to communicate between the USB and the ATmega168:

http://www.scribd.com/doc/18027806/Arduino-Duemilanove-Schematic
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Re: [PD] PD with Ubuntu Karmic - no sound

[John Harrison]

IIRC there is some sort of ALSA compatibility layer in Pulseaudio and I
think it would be nice if Pd-extended could choose this ALSA "driver" or
"soft card" or whatever it would be called. That would be a better solution
than pasuspender because then Pd would be playing "nice" with all the other
sound apps concurrently. Latency might be slightly worse but I think for
beginners at least the initial experience would be more positive, as many of
these users are coming from OS X and Windows platforms where sound
applications sharing the same sound card concurrently is expected behavior.

I also vaguely remember the pulseaudio is only an issue with ALSA when there
is no hardware mixer in the card. But my guess is that would be all cheap
sound cards, since it has been the case with the built-in cards on all the
Linux-based laptops I run into.

-John

On Fri, Nov 13, 2009 at 6:50 PM, Hans-Christoph Steiner wrote:

>
> Is pasuspender something that could be integrated into the Pd-extended menu
> launch item somehow?  I'd really like to make sure that Pd will output audio
> by just starting it in Debian/Ubunut.
>
> .hc
>
> On Nov 12, 2009, at 12:09 PM, John Harrison wrote:
>
> could be pulseaudio is the problem?
>
> from the command line try
>
> pasuspender pd
>
> On Thu, Nov 12, 2009 at 9:28 AM, Aditya Mandayam wrote:
>
>> hi,
>>
>> i have pd installed on ubunty 9.10 - karmic koala.
>>
>> i have absolutely no sound when i fire up pd. i've tried fooling
>> around with the Media>settings for OSS, ALSA, jack, default MIDI.
>>
>> No sound. What gives?
>>
>> Thank you,
>>
>> Y
>>
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>
>
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>
>
>
> 
>
> Computer science is no more related to the computer than astronomy is
> related to the telescope.  -Edsger Dykstra
>
>
>


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Re: [PD] PD with Ubuntu Karmic - no sound

[John Harrison]

could be pulseaudio is the problem?

from the command line try

pasuspender pd

On Thu, Nov 12, 2009 at 9:28 AM, Aditya Mandayam  wrote:

> hi,
>
> i have pd installed on ubunty 9.10 - karmic koala.
>
> i have absolutely no sound when i fire up pd. i've tried fooling
> around with the Media>settings for OSS, ALSA, jack, default MIDI.
>
> No sound. What gives?
>
> Thank you,
>
> Y
>
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Re: [PD] using pix_mix to mix past images with present

[John Harrison]

Hmm. This worked for you? I get a seg fault with your patch when I click on
[create, 1(. I could get it to start w/out a seg fault by disconnecting the
[t a b ] from the [gemlist], then clicking on the [create, 1( then
reconnecting [t a b] to [gemlist], but then it doesn't work. I only see what
is coming from the camera and not any sort of mix. No errors reported
either.

What I am suspecting and what I thought your patch might also be showing is
that I need 2 rendering chains to use [pix_mix] and that having the images
to mix in separate buffers but from the same rendering chain is not
sufficient. But I'm not sure why that would be the case for a pix_ object so
I could also be making up random rules for stuff I don't understand --- thus
my initial question.

So basically I have a solution as I show in my original patch I sent. But
I'm looking for the "why" now.

I'm running Gem 0.91.3 and Pd 0.41.3 extended on Jaunty.

Thanks,

-John

On Sat, Nov 7, 2009 at 8:49 AM, Jack  wrote:

> What about this ?
> ++
>
> Jack
>
>
>
> Le samedi 07 novembre 2009 à 07:32 -0600, John Harrison a écrit :
> > I wanted to mix past images with present images from a webcam using
> > pix_mix. Attached is a patch that successfully does this using
> > pix_buffer and fails to do this using pix_delay. My question is, why
> > doesn't pix_delay work with pix_mix in my patch? How woulld I change
> > my patch to get pix_delay to get the same results as pix_buffer does?
> >
> > Thanks,
> >
> > -John
> >
> > --
> > John
> > http://alumni.media.mit.edu/~harrison/<http://alumni.media.mit.edu/%7Eharrison/>
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[PD] using pix_mix to mix past images with present

[John Harrison]

I wanted to mix past images with present images from a webcam using pix_mix.
Attached is a patch that successfully does this using pix_buffer and fails
to do this using pix_delay. My question is, why doesn't pix_delay work with
pix_mix in my patch? How woulld I change my patch to get pix_delay to get
the same results as pix_buffer does?

Thanks,

-John

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#N canvas 22 73 990 551 10;
#X obj 703 179 gemwin;
#X msg 655 146 create \, 1;
#X msg 735 146 destroy;
#X obj 245 40 gemhead;
#X obj 244 66 pix_video;
#X obj 205 368 rectangle 4 3;
#X obj 294 342 pix_separator;
#X obj 205 345 pix_texture;
#X obj 244 145 t a b;
#X obj 271 168 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1
1;
#X obj 316 192 == 0;
#X obj 275 257 gemhead;
#X obj 233 304 pix_mix 0.1 0.9;
#X obj 296 366 pix_buffer_write MyDelay;
#X obj 275 276 pix_buffer_read MyDelay;
#X obj 68 277 pix_buffer MyDelay 2;
#X obj 528 265 pix_mix 0.1 0.9;
#X obj 244 93 spigot 0;
#X obj 479 103 spigot 1;
#X obj 388 37 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 1
1;
#X obj 562 332 pix_delay 1;
#X msg 624 308 1;
#X obj 624 285 loadbang;
#X obj 528 305 pix_separator;
#X obj 523 83 == 0;
#X text 542 214 PIX_MIX NOT WORKING HERE WITH PIX_DELAY;
#X text 45 213 PIX_MIX WORKING WITH PIX_BUFFER;
#X text 407 35 switch between pix_buffer and pix_delay. Why are these
getting different results?;
#X connect 1 0 0 0;
#X connect 2 0 0 0;
#X connect 3 0 4 0;
#X connect 4 0 17 0;
#X connect 4 0 18 0;
#X connect 6 0 13 0;
#X connect 7 0 5 0;
#X connect 8 0 12 0;
#X connect 8 1 9 0;
#X connect 9 0 10 0;
#X connect 9 0 13 1;
#X connect 10 0 14 1;
#X connect 11 0 14 0;
#X connect 12 0 6 0;
#X connect 12 0 7 0;
#X connect 14 0 12 1;
#X connect 16 0 7 0;
#X connect 16 0 23 0;
#X connect 17 0 8 0;
#X connect 18 0 16 0;
#X connect 19 0 17 1;
#X connect 19 0 24 0;
#X connect 20 0 16 1;
#X connect 21 0 20 1;
#X connect 22 0 21 0;
#X connect 23 0 20 0;
#X connect 24 0 18 1;
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Re: [PD] GEM help patches not found on Windows XP

[John Harrison]

Workaround:

http://lists.puredata.info/pipermail/pd-dev/2009-04/013366.html

BTW you might confirm that the 8.3 filename for Program Files is indeed
PROGRA~1 on your system... I think it usually is but you can check that from
the command line. I think there's a flag in the dir command to show you the
8.3 filename...or you can use old skool COMMAND.COM and see what it lists
the directory as...at least this is what I recall. No Windows machine around
to check...

-John

On Sun, Sep 13, 2009 at 11:02 AM,  wrote:

> Hi,
>
> I'm trying to get Pd to find the GEM help patches for its objects, but am
> having no luck so far.
> Default installation of pd-extended (version 0.40.3) keeps giving me
> 'sorry, couldn't find help patch for ...' messages
>
> I've added the path C/Program Files/pd/extra/Gem to paths. Still no love.
>
> I have noticed that the folder with GEM helpfiles appear to be in two
> locations; /extra and /doc/5.reference - is this normal?
>
> All other helpfiles seem to work without a problem, just can't get Gem to
> behave :S
>
> BTW, I've seen this identical problem on every windows installation I know
> (over half a dozen), including 1 under a virtual machine on Mac OS X.
> The Mac-native version of pd-extended does not have this problem.
>
> The problem is compounded by Pd starting a new instance when you
> double-click a patch under Windows.
> If it would open in the same intance, I'd just have a window with help
> patches open...
>
> Any help in solving this would be greatly appreciated.
>
>
> Thanks
>
>
>
>
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Re: [PD] pdp_rec~ crashes on ubuntu Jaunty/Pd-extended 0.41.4

[John Harrison]

Yves what distro do you run? Are bugs I find more likely to be fixed
if I run the same distro as you? Also what happens with pdp_rec? It
remains as undocumented and broken for the latest debian distros for
some unspecified amount of time? Any method already in place for
keeping track of bugs in pdp/PiDiP?

On 7/16/09, ydego...@gmail.com  wrote:
> ola,
>
> sorry for that..
> you can suspect something changed in libquicktime interface
> but i have no jaumty here...
> you can try to record in theora format
> with pdp_theorout~,
> after all it will be already compressed
> as you want and ready to publish on the web
>
> saludos,
> sevy
>
> John Harrison wrote:
>> Sorry my other machine where [pdp_rec~] works is ubuntu Intrepid
>> (8.10) not Hardy as stated below.
>>
>> -John
>>
>> On Thu, Jul 16, 2009 at 2:29 AM, John Harrison
>> mailto:johnharrison...@gmail.com>> wrote:
>>
>> This simple patch crashes every time on ubuntu Jaunty/Pd-extended
>> 0.41.4. The same patch works fine on my ubuntu Hardy machine, also
>> with Pd-extended 0.41.4 It doesn't matter if I try a different
>> video compressor. It still crashes.
>>
>> Just click on the filename, then click on [start(.
>>
>> On the Jaunty machine, the help patch for [pdp_rec~] doesn't work
>> either. A quick workaround fix would be greatly appreciated, if
>> one is possible. Or am I missing something really obvious?
>>
>> --
>> John
>> http://alumni.media.mit.edu/~harrison/
>> <http://alumni.media.mit.edu/%7Eharrison/>
>>
>>
>>
>>
>> --
>> John
>> http://alumni.media.mit.edu/~harrison/
>> <http://alumni.media.mit.edu/%7Eharrison/>
>> 
>>
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>

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Re: [PD] pdp_rec~ crashes on ubuntu Jaunty/Pd-extended 0.41.4

[John Harrison]

Sorry my other machine where [pdp_rec~] works is ubuntu Intrepid (8.10) not
Hardy as stated below.

-John

On Thu, Jul 16, 2009 at 2:29 AM, John Harrison wrote:

> This simple patch crashes every time on ubuntu Jaunty/Pd-extended 0.41.4.
> The same patch works fine on my ubuntu Hardy machine, also with Pd-extended
> 0.41.4 It doesn't matter if I try a different video compressor. It still
> crashes.
>
> Just click on the filename, then click on [start(.
>
> On the Jaunty machine, the help patch for [pdp_rec~] doesn't work either. A
> quick workaround fix would be greatly appreciated, if one is possible. Or am
> I missing something really obvious?
>
> --
> John
> http://alumni.media.mit.edu/~harrison/<http://alumni.media.mit.edu/%7Eharrison/>
>



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[PD] pdp_rec~ crashes on ubuntu Jaunty/Pd-extended 0.41.4

[John Harrison]

This simple patch crashes every time on ubuntu Jaunty/Pd-extended 0.41.4.
The same patch works fine on my ubuntu Hardy machine, also with Pd-extended
0.41.4 It doesn't matter if I try a different video compressor. It still
crashes.

Just click on the filename, then click on [start(.

On the Jaunty machine, the help patch for [pdp_rec~] doesn't work either. A
quick workaround fix would be greatly appreciated, if one is possible. Or am
I missing something really obvious?

-- 
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#N canvas 0 0 992 300 10;
#X obj 256 124 pdp_noise;
#X obj 257 95 metro 70;
#X obj 257 61 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1
-1;
#X obj 191 69 loadbang;
#X obj 256 171 pdp_glx;
#X obj 365 144 pdp_rec~;
#X floatatom 374 186 5 0 0 0 - - -;
#X msg 394 112 start;
#X msg 394 85 open /tmp/output.mov;
#X connect 0 0 4 0;
#X connect 0 0 5 0;
#X connect 1 0 0 0;
#X connect 2 0 1 0;
#X connect 3 0 1 0;
#X connect 5 0 6 0;
#X connect 7 0 5 0;
#X connect 8 0 5 0;
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Re: [PD] pdp_v4l framerate

[John Harrison]

This is a phillips webcam chipset so setpwc sets the framerate from the
command line --- at least there is workaround for now. pdp_v4l2 didn't work
with this webcam.

-John

On Sun, Jul 5, 2009 at 1:36 PM, ydego...@gmail.com wrote:

>
> ola,
>
> it's kind of strange,
> seems some cameras needs it and others no..
> but it surely lacks a message to change the framerate
> for those who need it..
>
> also in pdp_v4l2, it works fine,
> the frequency of the metro controls the framerate,
> so maybe, you can see if your cam is supported by
> pdp_v4l2, that would be the faster solution
>
> saludos,
> sevy
>
>
> John Harrison wrote:
>
>> When opening a webcam using pdp_v4l I get the message:
>>
>> pdp_v4l: camera framerate set to 10 fps
>>
>> Any way to change this frame rate? I didn't see anything in the help
>> patch. Banging with different metronome speed  [pdp_v4l] changes the rate at
>> which video is output from the object, but I can see from the resulting
>> video that the actual framerate from the webcam is not changing. [pix_video]
>> does not seem to have this problem so I know the framerate can be changed.
>>
>> Thx,
>>
>> -John
>>
>> --
>> John
>> http://alumni.media.mit.edu/~harrison/<http://alumni.media.mit.edu/%7Eharrison/><
>> http://alumni.media.mit.edu/%7Eharrison/>
>> 
>>
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[PD] pdp_v4l framerate

[John Harrison]

When opening a webcam using pdp_v4l I get the message:

pdp_v4l: camera framerate set to 10 fps

Any way to change this frame rate? I didn't see anything in the help patch.
Banging with different metronome speed  [pdp_v4l] changes the rate at which
video is output from the object, but I can see from the resulting video that
the actual framerate from the webcam is not changing. [pix_video] does not
seem to have this problem so I know the framerate can be changed.

Thx,

-John

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Re: [PD] in/out count

[John Harrison]

humph. Well here's one solution but there's probably something simpler. 
I'll be curious what other people come up with...


-John

potax flan wrote:

yo
this is doing my head in but i guess it's not rocket science...
trying to figure out a system to keep track of how many people are in 
a room at any given moment.
already have 2 sensors doing the physical work and sending bangs to 
pd, but then i get stuck...
ii have 2 bangs -- one for the left sensor, the other for the right, 
so that the left+right sequence means someone goes in and the 
right+left one means someone leaves the room.
i was trying to make it as elegant and simple as possible instead of 
having a crazy gate/select contraption.

ideas?


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#N canvas 290 97 523 522 10;
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Re: [PD] Gem: fullscreen can't get rid of apple menubar OS X 10.5.7

[John Harrison]

I already tried that trick of creating, destroying and recreating. No dice.

On Thu, Jun 4, 2009 at 8:47 AM, Nicolas Montgermont <
nicolas_montgerm...@yahoo.fr> wrote:

>  The [menubar 0 ( is working ok here also on 10.5.7 but the border of the
> window is still present.
> If you create the window, destroy the window once and recreate it in your
> patch, the border 0 is taken into account.
> I don't know if it's a recent bug but it seems to me I'm doing this for a
> while now to have the whole screen.
>
> Greetings,
>
> Nicolas
>
> Le 4/06/09 14:01, John Harrison a écrit :
>
> The patch is very basic and worked fine on a Linux machine before. We were
> moving it to a new MacBook for portability. I can't give you the actual
> patch though don't have access to this laptop right now and can't really
> look at this again for another few weeks. But I can tell you that when I had
> troubles, for testing I built a patch that was exactly like the attached
> patch and the menubar still would not disappear.
>
> -John
>
> On Thu, Jun 4, 2009 at 1:45 AM, marius schebella <
> marius.schebe...@gmail.com> wrote:
>
>> marius schebella wrote:
>>
>>> Hi John, is this a problem of 10.5.7? Did it work before?
>>> [fullscreen 1, menubar 0, create, 1(
>>> works for 10.5.6
>>> will update to 10.5.7 and try again...
>>> marius.
>>>
>>
>>  [menubar 0( works with 10.5.7, too.
>> please post more details, or your patch.
>> marius.
>>
>>
>>
>>
>>> John Harrison wrote:
>>>
>>>> I'm sending |fullscreen 1, cursor 0, menubar 0, border 0, create, 1,
>>>> lighting 0(
>>>>
>>>> (and every variant of order etc. I can think of, menubar -1 etc.)
>>>>
>>>> to [gemwin]
>>>>
>>>> and the top apple menubar shows up every time.
>>>>
>>>> I tried Pd-extended latest release 0.40-3 and Pd-extended 0.41-4 RC 4
>>>>
>>>> I tried everything I could think of in the [window properties] help of
>>>> Gemwin and a few times got rid of the menubar with some magical
>>>> something-or-other but if I closed Pd, reopened and tried again I couldn't
>>>> duplicate getting rid of the menubar.
>>>>
>>>> -John
>>>>
>>>>
>>>> 
>>>>
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>>>
>>>
>>
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Re: [PD] Gem: fullscreen can't get rid of apple menubar OS X 10.5.7

[John Harrison]

The patch is very basic and worked fine on a Linux machine before. We were
moving it to a new MacBook for portability. I can't give you the actual
patch though don't have access to this laptop right now and can't really
look at this again for another few weeks. But I can tell you that when I had
troubles, for testing I built a patch that was exactly like the attached
patch and the menubar still would not disappear.

-John

On Thu, Jun 4, 2009 at 1:45 AM, marius schebella  wrote:

> marius schebella wrote:
>
>> Hi John, is this a problem of 10.5.7? Did it work before?
>> [fullscreen 1, menubar 0, create, 1(
>> works for 10.5.6
>> will update to 10.5.7 and try again...
>> marius.
>>
>
> [menubar 0( works with 10.5.7, too.
> please post more details, or your patch.
>
> marius.
>
>
>
>
>> John Harrison wrote:
>>
>>> I'm sending |fullscreen 1, cursor 0, menubar 0, border 0, create, 1,
>>> lighting 0(
>>>
>>> (and every variant of order etc. I can think of, menubar -1 etc.)
>>>
>>> to [gemwin]
>>>
>>> and the top apple menubar shows up every time.
>>>
>>> I tried Pd-extended latest release 0.40-3 and Pd-extended 0.41-4 RC 4
>>>
>>> I tried everything I could think of in the [window properties] help of
>>> Gemwin and a few times got rid of the menubar with some magical
>>> something-or-other but if I closed Pd, reopened and tried again I couldn't
>>> duplicate getting rid of the menubar.
>>>
>>> -John
>>>
>>>
>>> 
>>>
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>>
>>
>>
>


menubar-not-disappearing.pd
Description: Binary data
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[PD] Gem: fullscreen can't get rid of apple menubar OS X 10.5.7

[John Harrison]

I'm sending |fullscreen 1, cursor 0, menubar 0, border 0, create, 1,
lighting 0(

(and every variant of order etc. I can think of, menubar -1 etc.)

to [gemwin]

and the top apple menubar shows up every time.

I tried Pd-extended latest release 0.40-3 and Pd-extended 0.41-4 RC 4

I tried everything I could think of in the [window properties] help of
Gemwin and a few times got rid of the menubar with some magical
something-or-other but if I closed Pd, reopened and tried again I couldn't
duplicate getting rid of the menubar.

-John
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Re: [PD] pix_record issues with geos and frames per second

[John Harrison]

In terms of recording the Geos here's a sample patch of how I might do 
that. Idea, method, and code stolen liberally from Marius Schebella's 
posts to this list.


In terms of framerate, I am not sure but I would have guessed that you 
could either send [auto 0( to [pix_record] then bang [pix_record] at the 
framerate you wish or change [gemwin] to be the framerate you wish and 
send [auto 1( to [pix_record] . If framerate doesn't seem to be matching 
what you expect, I wonder if [pix_record] is having trouble keeping up 
due to CPU load. You might try an uncompressed format for your codec.


-John

Derrick Barnicoat wrote:

Hello,
I am very much a newbie to PD/GEM and I just recently created my first video mixer/processer. I am using pix_mix to mix a video of an improvised performance I did with a dancer mixed with itself. I stretched each video over a cube geo. It is 2 chanels. One chanel is an uneffected version of the video. The other video has pix_rtx, pix_lumaoffset, pix_contrast, colorRGB with alpha, and pix_rgb2hsv as filters. Each cube has sliders assigned to control translation, rotation, and scale in unison. There are also three metro objects that control several inputs of the filters. 


Everything works fine as far as live performance but I want to record the 
performance as a video file so I can send a version of it to the dancer and 
perhaps share it via youtube or another video sharing site. I have made various 
attempts using pix_record and pix_snap objects but the results have been 
disappointing in various ways.

The first attempts resulted in a .mov file but at the wrong fps and thus to slow to match the audio track. As I understand it pix_record only outputs 20fps files but I have a dialog that offers other options. The problem is the dialog closes the gemwin everytime I try to use it and the dialog seems to be set to 12fps. So I tried importing 12fps and 20fps versions of the same video. 

This was before I added the pix_snap object which I added to resolve another issue. The other issue is that the cube geos are not included in the recording. All the effects are present but no cubes, only the video without texturing to the geos. I researched various techniques to record the geos as well and the best option seemed to be to use pix_snap. 

Pix_snap resulted in a single frame video with no geos. 


I guess my question is basicly how do I record a Gem video with all elements 
included and at the correct fps? Is there another way besides pix_record? Is 
pix_write the other way? If so how would I use pix_write as it only exports 
.jpg and .tiff files? I am kind of hoping there is a way to churn out various 
improvised video manipulations of this performance and other videos I have done 
so I can share them. Any ideas or is GEM just not meant to be recorded. I mean 
I have seen GEM videos posted online so there must be an obvious way to do this 
that I am missing.

I feel like I just don't know the proper way to use pix_record and pix_snap together, but maybe I am just going about the process in the absolutely wrong way. 


Any ideas? please be as specific as possible because I am new to this and still 
don't understand allot. Thanks so much.

Derrick

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#X obj 89 47 loadbang;
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#X obj 559 234 pix_buffer_read \$0-depot;
#X obj 559 184 gemhead 51;
#X obj 559 204 t a b;
#X msg 181 314 0;
#X obj 352 29 pix_buffer \$0-depot 1;
#X msg 685 207 0;
#X obj 25 153 cnv 15 380 60 empty empty empty 20 12 0 14 -261682 -66577
0;
#X obj 560 398 square 4;
#X obj 507 27 loadbang;
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everything-you-want-to-record-would-go-in-this-rendering-chain
0;
#X obj 90 34 inlet;
#X obj 89 83 outlet;
#X obj 91 60 sphere 2;
#X text 270 28 some animation to record;
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#X obj 267 134 gemhead;
#X obj 202 7 loadbang;
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#X connect 5 0 4 0;
#X connect 6 0 5 0;
#X connect 8 0 7 0;
#X connect 9 0 6 0;
#X restore 29 160 pd 
everything-you-want-to-record-would-go-in-this-rendering-chain
;
#X connec

Re: [PD] Needed libs for extended on Linux

[John Harrison]

One idea is to go into Synaptic on your machine, choose pd-extended, 
right-click and choose "properties". Then choose the "dependencies" tab. 
Of course you won't need all the libraries you see listed, since many of 
those will already be installed on your ubuntu studio machine.


Is it an option to get internet access to the machine in question? My 
standard trick is to enable internet connection sharing using 
firestarter on my ubuntu laptop, then connecting the ethernet jack of my 
laptop to the computer in question using a crossover cable. This allows 
the computer in question to get internet through my laptop's wifi.


-John

Nicanor Garcia wrote:

Hello,

Sorry to bother you with this question but I'm really in a hurry.

I need to install pd-extended on a machine that doesn't have access to 
internet, it is a machine in my university.


We installed Ubuntu Studio 8.04 on it and it's working fine.

I forced the installation with the deb package but I got some errors 
about Gem and others externals not working because of some needed libs.


For tomorrow I need to work with all the audio objects so I was 
thinking about downloading the deb packages for the needed libs in my 
house and taking them in an Flash memory, but I'm not sure which 
packages do I really need.


I'll apreciate if you could help me.

Thank you very much in advance.

Nicanor García O.


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Re: [PD] Has anyone used PD to read internet radio streams?

[John Harrison]

I've used mp3amp~ to play shoutcast streams. It seems to work pretty well
and I think it's already included in Pd-extended for Linux. Might be on the
OSX version too...not sure.

-John

On Wed, Apr 8, 2009 at 12:41 AM, danomatika  wrote:

>  Howdy,
>
> I'm wondering if anyone has used PD to read internet radio streams?
>
> I need to make an "interactive tuner" ...
>
>   ---
> Dan Wilcox
> danomatika.com
> robotcowboy.com 
>
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Re: [PD] pdpedia

[John Harrison]

I've followed the pdpedia threads but perhaps not closely enough. I've
always thought Pd lent itself well to documentation and self-exploration
because of the interactive help patches. A wiki approach does not offer
this. On the other hand it does offer an easy way to grow docs through
collaborative editing, plus there's search capabilities for newbies to find
what they want etc.

Any ideas about how these two things might be combined? Perhaps pddp already
examined this?

-John

On Thu, Apr 2, 2009 at 10:51 AM, Alexandre Porres  wrote:

> yeah, well, I dont really have a clue on what is missing too, please check
> then, and we will start with the most needed.
>
> cheers
>
>
> On Thu, Apr 2, 2009 at 12:24 PM, Philip Potter 
> wrote:
>
>> 2009/4/1 Alexandre Porres :
>> >
>> >> does this mean that you want to make a reference manual of Every
>> Object,
>> >> no matter whether it has been implemented or not?
>> >
>> > well, we could skip the not implemented ones for now :)
>>
>> I think in the interests of starting somewhere, and with the basics,
>> I'm going to go through the pd help files in order and make sure
>> everything there is covered by pdpedia. We can do more advanced stuff
>> when pdpedia is a bit more developed, but for the moment, there isn't
>> even an article on "message", so I'll go and write that.
>>
>> >> but what keeps us from doing this right now? what has kept us from
>> doing
>> >> so in the past few years of pdpedia's existance?
>> >> what shall we do to avoid becoming a honeypot?
>> >
>> > hmm, sorry for not having followed the pdpedia since it has started, so
>> I
>> > dont know actually about its history and everything. I just wish to
>> > collaborate, so please fill me in.
>> > what is honeypot? something not good I guess.
>>
>> A honeypot is something attractive to spammers and hackers.
>>
>> Philip
>>
>
>
>
> --
> Alexandre Torres Porres
> cel. (11)8179-6226
> Website: http://porres.googlepages.com/home
> http://www.myspace.com/alexandretorresporres
>
>
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Re: [PD] Delay effect without clicks

[John Harrison]

from your first email, it sounds like you are expecting a pitch shift. 
So how does the pitch shift you are hearing differ from what you are 
expecting i.e. define "weird." I take it you tried different numbers 
where the 50 is i.e. 500 etc.? Still weird?


It seemed to me that Frank thought you wanted to build a pitch shifter 
using the delay effect.


-John

Bjørn Nielsen wrote:

Thanks Marius, Frank & John

I got rid of the click noises now by doing this

[numberbox\
 |
[pack $f1 50]
 |
[line~]
 |
[vd~ testreadname]

But the pitch shifting it does while changing delay time is quite
weird, so I think I will look into Franks example of doing this.

/ Bjørn

On Fri, Mar 27, 2009 at 07:08, marius schebella
 wrote:
  

hi again,
vd~ allows you to be controlled via a dsp signal (as opposed to a message
inlet which only gets updated every 1,6 ms or so) and thus allows you to
smoothly change the delay time. but you have to do do an interpolation
between the messages you are feeding into it, and the best way to do this is
with [line~].

[numberbox\
 |
[line $1 100(
 |
[vd~ del]

marius.


Bjørn Nielsen wrote:


Hey Marius
Thanks for the quick reply.

I have now tried vd~, but I still encounter clicks noises when I
change delay time.

audiosignal
|
[delwrite testname 2000]

delaytime
|
 [sig~]
|
[vd~ testname]
|
audioout+back to delwrite

Do the click noises has something to do with the samplelength in
delwrite~? (and can it at all be changed on the fly?)

/Bjørn


On Fri, Mar 27, 2009 at 00:13, marius schebella
 wrote:
  

hi Bjørn,
maybe vd~ (variable delay) is what you're looking for?
marius.

Bjørn Nielsen wrote:


Hey PD list
This is my first mail to the list and I am a newbie in PD, so please
bear with me.

I am trying to make a patch that simulates the delay effects I use as
a stompbox for my guitar. I.e. a signal delay line, with a parameter
of feedback and a parameter of delay time. While changing the delay
time parameter the ongoing sampled part should change pitch.

My first attempt (as in the attached patch) is to use
delread~/delwrite~, but changing the lenght of the sampled part in
delread~ makes a lot of clicks noises (which can be fun, but not what
I intended) and it do not change pitch. My max/msp friend said I
should instead of clipping the sample, make it run faster. So I tried
to figure if that was possible with delread~, vd~ or using arrays
instead with tabread(4)~, but I have not found the golden key yet.

I would be very happy if somebody could lead me in right direction.
Thanks, Bjørn




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