Re: [PD] Video problems using GEM
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 oconn...@tcd.ie 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 cgclep...@gmail.com 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 oconn...@tcd.ie 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! ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] GEM noobie: I don't understand this glsl thing... but I need it!
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 danomat...@gmail.com 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 Bookhttp://www.amazon.com/OpenGL-Shading-Language-3rd-Edition/dp/0321637631 On Sep 9, 2013, at 5:01 PM, pd-list-requ...@iem.at wrote: *From: *David Schaffer schafferda...@hotmail.com *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 pd-list@iem.at 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Gem create many cubes
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 adr...@gmail.comwrote: 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 adr...@gmail.com 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? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list gemlist-color.pd Description: Binary data ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Gem create many cubes
use [separator] to use absolute instead of relative positions. On Fri, Aug 2, 2013 at 3:40 PM, pured...@11h11.com 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)? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pmpd // call for English translation help
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 crit :
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
mailto: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 crit :
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
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 skafr...@gmail.com 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 antoine.ville...@gmail.com 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 skafr...@gmail.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pix_multiblob and tracking multiple objects
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 john.harri...@alum.mit.edu 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 skafr...@gmail.com 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 antoine.ville...@gmail.com 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 skafr...@gmail.com 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 ___ Pd-list@iem.at mailing list
Re: [PD] pix_multiblob and tracking multiple objects
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 john.harri...@alum.mit.edu 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 john.harri...@alum.mit.edu 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 skafr...@gmail.com 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 antoine.ville...@gmail.com 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
[PD] gemlist into gemframebuffer?
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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] gemlist into gemframebuffer?
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.eduwrote: 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] gemlist into gemframebuffer?
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 john.harri...@alum.mit.eduwrote: 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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Gem and audio pause/clicks
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 juan...@gmail.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] [PD-announce] netpd 2.1
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 ___ Pd-announce mailing list pd-annou...@iem.at http://lists.puredata.info/listinfo/pd-announce -- John Harrison http://johnharrison.cc ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] pmpd2d, pmpd3d
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? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pmpd2d, pmpd3d
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 johnharrison...@gmail.comwrote: 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? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pidip
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 h...@at.or.atwrote: 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... ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pix_motionblur + rotateXYZ
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 c...@fsck.fr 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list test-blur2.pd Description: Binary data ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Installing externals on ubuntu 12.4 omap
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 m...@ucsd.edu 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! ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Pure Data/Arduino course webpage
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 abonneme...@revolwear.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] [GEM] PS3eye in Ubuntu 12.04?
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) ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- Pierre-Yves Fave 0612994425 http://www.5data.net ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John Harrison http://alumni.media.mit.edu/~harrison ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] Pure Data/Arduino course webpage
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 -- John Harrison http://alumni.media.mit.edu/~harrison ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] variable receive objects?
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 jancs...@yahoo.comwrote: 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 m...@ucsd.edu To: Jonathan Wilkes jancs...@yahoo.com Cc: IOhannes m zmölnig zmoel...@iem.at; 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 zmoel...@iem.at 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 Wegerm...@marianweger.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit
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::vectorgem::any, std::allocatorgem::any ) () 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=optimized out, 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 zmoel...@iem.atwrote: -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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit
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 h...@at.or.atwrote: 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=revisionrevision=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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit
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 zmoel...@iem.at 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- ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit
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 h...@at.or.atwrote: 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::vectorgem::any, std::allocatorgem::any ) () 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit
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 h...@at.or.atwrote: 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 h...@at.or.atwrote: 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::vectorgem::any, std::allocatorgem::any ) () 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list http://at.or.at/hans/ test99.pd Description: Binary data ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] trying to track down a bug: Pd-extended 0.43-1 beta on Oneric 32 bit
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::vectorgem::any, std::allocatorgem::any ) () from /usr/lib/pd-extended/extra/Gem/Gem.pd_linux [test99] is attached. test99.pd Description: Binary data ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Pd extended 0.43-1 nightly missing tk dependency on ubuntu 11.10 (Oneiric)
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 h...@at.or.atwrote: 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 h...@at.or.atwrote: Thanks for reporting, this commit should fix it: http://pure-data.svn.sourceforge.net/viewvc/pure-data?view=revisionrevision=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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Pd extended 0.43-1 nightly missing tk dependency on ubuntu 11.10 (Oneiric)
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 reduz...@gmail.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Pd extended 0.43-1 nightly missing tk dependency on ubuntu 11.10 (Oneiric)
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 h...@at.or.atwrote: Thanks for reporting, this commit should fix it: http://pure-data.svn.sourceforge.net/viewvc/pure-data?view=revisionrevision=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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list You can't steal a gift. Bird gave the world his music, and if you can hear it, you can have it. - Dizzy Gillespie ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] wiimote report
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 i...@vt.edu 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? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] Pd extended 0.43-1 nightly missing tk dependency on ubuntu 11.10 (Oneiric)
Pd extended 0.43-1 nightly gives sh: wish: not found error and won't run until tk is loaded. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] pd-extended 0.42-5 zexy ~, ~, !=~, ==~ not working (win32, linux)
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? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] No loadbang in dynamically created objects
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 zeeb.bran...@gmail.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Desktop Screen Capture
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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John Harrison http://alumni.media.mit.edu/~harrison ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Extended version for Natty AMD64?
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 mario...@gmail.com 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! ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] getting pix_blobtracker to work
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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] udp broadcasting with netsend: permission denied in Linux
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 i...@vt.edu 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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Dynamic patching with audio - review
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 padawa...@obiwannabe.co.ukwrote: 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 john.harri...@alum.mit.edu 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Dynamic patching with audio - review
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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] memento crashing in Pdextended 0.42-5 Ubuntu 10.10
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/ -- John ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] How do I squeeze more performance out of Gem?
thanks for these suggestions. Here's how it's going so far: 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... - 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! :-) ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] How do I squeeze more performance out of Gem?
On Wed, Mar 9, 2011 at 1:59 AM, cyrille henry 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 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 size-doesn't-matter 20] and [sphere size-doesn't-matter 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] How do I squeeze more performance out of Gem?
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.comwrote: On Wed, Mar 9, 2011 at 1:59 AM, cyrille henry 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 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 size-doesn't-matter 20] and [sphere size-doesn't-matter 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ sphere-gemlist-model.pd Description: Binary data ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] How do I squeeze more performance out of Gem?
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 maybe one with less vertices will help. I can try... -John On Wed, Mar 9, 2011 at 9:48 AM, chris clepper cgclep...@gmail.commailto: 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 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 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 size-doesn't-matter 20] and [sphere size-doesn't-matter 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 ___ Pd-list@iem.at mailto:Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] How do I squeeze more performance out of Gem?
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 c...@chnry.net 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 mailto: 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.commailto: cgclep...@gmail.com mailto:cgclep...@gmail.com mailto: 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 mailto: 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 mailto: c...@chnry.net mailto:c...@chnry.net mailto:c...@chnry.net mailto: 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 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 size-doesn't-matter 20] and [sphere size-doesn't-matter 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
Re: [PD] starting [pd~] causes: tcl: /usr/lib/bin/pd.tk: can't open script
I filed this into the bug tracker: http://sourceforge.net/tracker/index.php?func=detailaid=3202613group_id=55736atid=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 hus...@gmail.com wrote: On Mon, Mar 7, 2011 at 2:04 PM, John Harrison johnharrison...@gmail.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- when Art become pratical we call it technology. When Technology become useless we call it Art www.estereotips.net ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] How do I squeeze more performance out of Gem?
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! :-) ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] starting [pd~] causes: tcl: /usr/lib/bin/pd.tk: can't open script
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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] loadbang not sent for dynamically created objects?
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; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] loadbang not sent for dynamically created objects?
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 pedro.lo...@ist.utl.pt 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 c...@chnry.net 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] tracking multiblob with constant ID
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 j...@rybn.org 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list #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 float: minimum luminance of a pixel to be considered part of a blob. (default=0.04); #X text 24 325 Inlet 1: blobSize float: 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=kN); #X text 20 428 for motion-tracking you will also need; #X obj 304 425 pix_movement; #X msg 543 112 auto \$1; #X obj 604 114 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1; #X
Re: [PD] pd-kinect-skeleton
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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Fwd: Re: wiimote crashes with moderate cpu load and/or heavy USB transfer
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 Haefelireduz...@gmail.com 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 Bukvici...@vt.edu To: John Harrisonjohnharrison...@gmail.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] wiimote crashes with moderate cpu load and/or heavy USB transfer
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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Pd-extended and Firefox
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 pedro.lo...@ist.utl.pt mailto:pedro.lo...@ist.utl.pt 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 pimas...@gmail.com 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 ___ Pd-list@iem.at mailto:Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- Pedro Lopes (MSc) contact: pedro.lo...@ist.utl.pt mailto:pedro.lo...@ist.utl.pt website: http://web.ist.utl.pt/Pedro.Lopes ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] libraries in Pd-extended 0.43
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 ydego...@gmail.comwrote: i want my stuff to be taken out of pd-extended ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] new license for pidip and unauthorized WAS: pd-pidip into Debian
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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pd-pidip into Debian
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 ydego...@gmail.comwrote: 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] unable to open pdp_v4l webcam video stream
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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] opencv
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 p...@digitalworlds.ufl.eduwrote: 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 claudiusmaxi...@goto10.org mailto:claudiusmaxi...@goto10.org 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/ppahttps://launchpad.net/%7Epuredyne-team/+archive/ppa https://launchpad.net/%7Epuredyne-team/+archive/ppa Claude ___ Pd-list@iem.at mailto:Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- http://arselectronicachile.blogspot.com http://www.myspace.com/santorcuato http://comunicacionnativa.blogspot.com/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pduino + arduino UNO
how was this solved? On Tue, Oct 19, 2010 at 8:30 AM, alessandro contini aless.cont...@gmail.com wrote: solved. thanks a lot anyway. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] PS3 eye, Pix_video, low latency
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 http://bear24rw.blogspot.com/2009/11/ps3-eye-driver-patch.htmlin 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 hus...@gmail.com wrote: On Thu, Oct 14, 2010 at 1:53 PM, ydego...@gmail.com ydego...@gmail.comwrote: 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 http://www.estereotips.net -- when Art become pratical we call it technology. When Technology become useless we call it Art www.estereotips.net ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] GEM: borderless window is also always on top (and hasn't an icon)
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. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] live pd patch mixed with Gem or pdp?
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 zmoel...@iem.atwrote: 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] live pd patch mixed with Gem or pdp?
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 zmoel...@iem.at 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] live pd patch mixed with Gem or pdp?
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 zmoel...@iem.at 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John Harrison http://alumni.media.mit.edu/~harrison ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] small patch for [pdp_mix]
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=detailaid=3050324group_id=55736atid=478072 https://sourceforge.net/tracker/?func=detailaid=3050325group_id=55736atid=478072 Thanks, -John ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Streaming GEM Visuals
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 bbakersm...@gmail.comwrote: 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Streaming GEM Visuals
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 johnharrison...@gmail.comwrote: 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 bbakersm...@gmail.comwrote: 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/http://alumni.media.mit.edu/%7Eharrison/ -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Linux, video1394 support?
so [pdp_ieee1394] isn't working? From there you could use [pix_2gem] 2010/5/11 András Murányi muran...@gmail.com On Tue, May 11, 2010 at 4:08 PM, IOhannes m zmoelnig zmoel...@iem.atwrote: 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Linux, video1394 support?
I just used it on ubuntu Karmic with extended 41.4. Worked great. On Tue, May 11, 2010 at 9:44 AM, Pagano, Patrick p...@digitalworlds.ufl.eduwrote: 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 -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] video grid
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 caiserx...@gmail.comwrote: 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!!! ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] tabread4~ broken interpolation algorithm - was Re: Max Smoother Audio than Pd?
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... -- Matteo Sisti Sette matteosistise...@gmail.com http://www.matteosistisette.com ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] image grid in GEM
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 f...@mur.at 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- Fränk Zimmer visit: http://fz.mur.at ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Window focus in gem
Since you are on Linux one kludge might be to use devilspie http://burtonini.com/blog/computers/devilspieto force focus to a particular window? On Thu, Feb 18, 2010 at 9:19 AM, James Dunn ja...@4thharmonic.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] FT232 and PD (OSX)
On Mon, Dec 7, 2009 at 10:52 AM, Kyle Klipowicz kylek...@gmail.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] PD with Ubuntu Karmic - no sound
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 h...@at.or.atwrote: 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 adity...@gmail.comwrote: 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 Mediasettings for OSS, ALSA, jack, default MIDI. No sound. What gives? Thank you, Y ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/http://alumni.media.mit.edu/%7Eharrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list Computer science is no more related to the computer than astronomy is related to the telescope. -Edsger Dykstra -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] PD with Ubuntu Karmic - no sound
could be pulseaudio is the problem? from the command line try pasuspender pd On Thu, Nov 12, 2009 at 9:28 AM, Aditya Mandayam adity...@gmail.com 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 Mediasettings for OSS, ALSA, jack, default MIDI. No sound. What gives? Thank you, Y ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] using pix_mix to mix past images with present
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/ #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; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] using pix_mix to mix past images with present
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 j...@rybn.org 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/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] GEM help patches not found on Windows XP
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, r...@raakvlak.net 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] pdp_rec~ crashes on ubuntu Jaunty/Pd-extended 0.41.4
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/ #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; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pdp_rec~ crashes on ubuntu Jaunty/Pd-extended 0.41.4
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 johnharrison...@gmail.comwrote: 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/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pdp_rec~ crashes on ubuntu Jaunty/Pd-extended 0.41.4
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 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 johnharrison...@gmail.com 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/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- Sent from Gmail for mobile | mobile.google.com John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pdp_v4l framerate
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 ydego...@gmail.comwrote: 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/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John http://alumni.media.mit.edu/~harrison/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] pdp_v4l framerate
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/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] in/out count
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? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John Harrison http://alumni.media.mit.edu/~harrison #N canvas 290 97 523 522 10; #X obj 86 -75 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1 -1; #X obj 279 -72 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 -1 -1; #X obj 222 162 spigot; #X msg 86 -26 1; #X msg 221 139 1; #X msg 255 140 0; #X obj 277 -50 t b b; #X obj 86 21 t f f; #X obj 84 64 spigot 1; #X msg 281 -28 1; #X obj 281 22 t f f; #X obj 277 66 spigot 0; #X obj 129 23 == 0; #X obj 322 23 == 0; #X msg 109 134 -1; #X obj 85 -48 t b b; #X obj 109 158 spigot; #X msg 142 135 0; #X obj 213 286 +; #X floatatom 216 324 5 0 0 0 - - -; #X obj 202 251 int; #X obj 212 223 t b f; #X connect 0 0 15 0; #X connect 1 0 6 0; #X connect 2 0 21 0; #X connect 3 0 7 0; #X connect 4 0 2 0; #X connect 5 0 2 1; #X connect 6 0 5 0; #X connect 6 0 9 0; #X connect 6 1 4 0; #X connect 7 0 8 1; #X connect 7 1 8 0; #X connect 8 0 2 1; #X connect 8 0 13 0; #X connect 8 0 17 0; #X connect 9 0 10 0; #X connect 10 0 11 1; #X connect 10 1 11 0; #X connect 11 0 12 0; #X connect 11 0 16 1; #X connect 12 0 8 1; #X connect 13 0 11 1; #X connect 14 0 16 0; #X connect 15 0 3 0; #X connect 15 0 17 0; #X connect 15 1 14 0; #X connect 16 0 21 0; #X connect 17 0 16 1; #X connect 18 0 20 1; #X connect 18 0 19 0; #X connect 20 0 18 0; #X connect 21 0 20 0; #X connect 21 1 18 1; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Gem: fullscreen can't get rid of apple menubar OS X 10.5.7
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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- ___pd-l...@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- http://nim.on.free.fr ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pix_record issues with geos and frames per second
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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John Harrison http://alumni.media.mit.edu/~harrison #N canvas 395 240 880 497 10; #X obj 29 67 gemhead; #X msg 566 56 create \, 1; #X msg 644 57 destroy; #X obj 29 92 gemframebuffer; #X obj 560 260 pix_texture; #X obj 29 278 pix_snap; #X msg 82 248 512 512; #X obj 29 218 t b a; #X obj 89 228 loadbang; #X msg 29 238 snap; #X obj 29 308 t a b; #X obj 29 335 pix_buffer_write \$0-depot; #X obj 89 47 loadbang; #X msg 89 67 dimen 512 512; #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; #X obj 29 112 translateXYZ 0 0 -4; #X obj 560 350 pix_record; #X msg 495 56 lighting 1; #X msg 582 280 file /tmp/mymovie.mov; #X msg 584 321 record 1; #X msg 583 302 auto 1; #X msg 647 322 record 0; #X obj 589 99 gemwin 20; #X floatatom 588 372 5 0 0 0 - - -; #N canvas 94 100 450 300 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; #X obj 202 68 line 0 1; #X msg 202 47 0 \, 3 3000; #X obj 202 27 metro 3000; #X obj 266 159 world_light; #X obj 267 134 gemhead; #X obj 202 7 loadbang; #X connect 0 0 2 0; #X connect 2 0 1 0; #X connect 4 0 2 1; #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 connect 0 0 3 0; #X connect 1 0 30 0
Re: [PD] Has anyone used PD to read internet radio streams?
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 danomat...@gmail.com 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 http://www.robotcowboy.com ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pdpedia
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 por...@gmail.com 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 philip.g.pot...@gmail.comwrote: 2009/4/1 Alexandre Porres por...@gmail.com: 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Delay effect without clicks
I think what you are talking about is zipper noise --- when you change the value sent to [vd~] what you are hearing is a discontinuity in the audio caused by the discontinuity between the new value and the previous value sent to [vd~]. Smooth your trip between the values with [line~]. Try something like this: delaytime | [$1 100( | [line~] | [vd~ testname] Play with the 2nd parameter in the message sent to line (shown as 100 above). I don't know how much doppler effect you are going to want to replace your clicks. -John 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 marius.schebe...@gmail.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John Harrison http://alumni.media.mit.edu/~harrison ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Delay effect without clicks
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 marius.schebe...@gmail.com 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 marius.schebe...@gmail.com 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- John Harrison http://alumni.media.mit.edu/~harrison ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] still struggling with basic understanding of Gem dataflow
This is fantastic! Thank you Marius for taking the time to build these patches. rtx_sch2.pd exactly answered my question and shows beautifully how to perform a set of OpenGL operations on the content of some pix_ data before applying more pix_ operations. The patch makes total sense. I'm still playing with it to make sure I fully grasp all parts. I really appreciate this help. -John marius schebella wrote: hi, I think your pix_coordinate idea was not that bad (see attached patch). but that is probably not what you want?? on the other hand, using pdp_rotate and converting twice is really eating up a lot of cpu. pdp is a different world again and the bridge between pdp and gem is buggy (your patch crashed my computer for example). but again, as chris said. there is a difference between rotating the content of the pix data and rotating the geometry that this data is mapped to. so the second patch shows, what I think you really want. rotate an image and then feed this into your pix_rtx. marius. John Harrison wrote: This is extremely helpful. I'm starting to get it. Comments/questions inline. chris clepper wrote: There are two types of objects in GEM: pix and OpenGL. Pix objects do work in the top to bottom manner like Pd DSP objects. would [pix_coordinate] be an exception to this? I've been playing with it and it seems to behave the way you have described OpenGL objects and not GEM objects. I read the help patch about [pix_texture] reassigning the coordinate values, but that still didn't explain all the behavior I was seeing. The convention in GEM is to put the GL objects after the pix_ ones showing that once the pix_ processes are done on the CPU it is time for the GL processes on the GPU to start. I understand you to be saying that the GL processes will always be applied after the pix_ processes. If that is the case, then it sounds like there is no way to have [rotateXYZ] applied before [pix_rtx]. Makes sense. For the more general case, is it correct that there is no way in GEM to give an arbitrary rotation of an image as input to a pix_ object since there is no Gem pix_ object with arbitrary rotation function? Figuring that might be the case, I tried to build [pix_rotate] using [pix_coordinate]...and this led me to the question about about [pix_coordinate] Using pdp_rotate, pix_2gem and gem2pdp, I did successfully build a pix_ rotator. On the chance it might be helpful to see, I attached a demo patch which feeds a rotated video stream to [pix_rtx] then rotates the stream back to the way it was. While it more-or-less works it seems a bit scabby. Is there a better way? There are lots of exceptions to Pd rules in GEM and there is really no way around them. It is kind of like learning English - I before E except after C, excepting all of those words that ignore the rule. As long as I can make sense of what the rules are, which objects break them, and some rough idea as to why, I'm cool with that. Thank you again for your help. As Hans suggests, I'd like to find a way to help organize, then share this information, whether it be on the wiki or in some other meaningful way. -John ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] still struggling with basic understanding of Gem dataflow
Thanks Hans. I know the example patch already and I have [pix_rtx] working fine inasfar as I can get it to do what the example patch already shows. I think my question is more about data flow and Gem. My patch and [pix_rtx} are just an example of a more basic misunderstanding I believe I have which has not been cleared up despite many hours of work in Gem. Could somebody explain to me my [pix_rtx] in my example patch appears to be processed before the rotation instead of after? -John On Tue, Mar 24, 2009 at 9:33 PM, Hans-Christoph Steiner h...@eds.orgwrote: I think this is an appropriate place to discuss gem. In the Help browser, check out: examples - Gem - 04.video - 04.videoRTX.pd I had to do some trickery to get it working OK. Check the archives for details, I remember some discussion about all the separators. .hc On Mar 24, 2009, at 3:35 PM, John Harrison wrote: Attached is a small example patch of how I just don't get Gem...still... [pix_rtx] has a steady wave that normally flows from left to right. I would have thought that the attached patch shows me rotating the image first, then applying [pix_rtx]. So it would stand to reason in my mind I would see a rotated image with [pix_rtx] flowing from left to right. But that isn't the result I see. The patch has [pix_rtx] flowing from right to left now. It is as if [pix_rtx] is applied *before* the rotation instead of *after* as I would have expected. Grasping at straws, I have tried [pix_separator] between just about every object, but that makes no difference. What am I misunderstanding that makes the behavior of the patch make sense? And...how would I get [pix_rtx] to flow from left to right on a mirrored image? -John P.S. Are questions like this better on the Gem-dev list? That's a developer list but at the same time I feel a bit awkward putting too many Gem questions on a Pd list #N canvas 962 171 305 227 10; #X obj 29 -58 gemhead; #X obj 29 -35 pix_video; #X obj 29 44 pix_texture; #X obj 28 72 rectangle 4 3; #X obj 159 9 gemwin; #X msg 136 -34 create \, 1; #X msg 214 -33 destroy; #X obj 135 -57 loadbang; #X obj 29 17 pix_rtx; #X obj 29 -10 rotateXYZ 0 180 0; #X connect 0 0 1 0; #X connect 1 0 9 0; #X connect 2 0 3 0; #X connect 5 0 4 0; #X connect 6 0 4 0; #X connect 7 0 5 0; #X connect 8 0 2 0; #X connect 9 0 8 0; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list There is no way to peace, peace is the way. -A.J. Muste ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] still struggling with basic understanding of Gem dataflow
I'm pretty determined to work through this! :-) I thought I'd write a workaround to keep this conversation moving: My plan was to write the video to a buffer with [pix_buffer], then read one frame later and apply [pix_rtx]. I've done this workaround before for similar situations. But I got stuck before I even got to [pix_rtx]. Please see the attached patch. In the patch you'll see 3 toggles, all of which I would have expected to show a rotated image textured onto a rectangle. Only one of them does. They are numbered right to left. Box 1 shows the output of [pix_buffer_write]. That shows a rotated image. Fine so far. Box 2 shows the output of [rotateXYZ] before [pix_buffer_write]. That shows a rotated white box with no image textured. Why? Box 3 shows the output of [pix_buffer_read]. That shows an image but no rotation. Why? This one is especially troublesome to me. I'm trying to make my questions as specific as possible. Please understand I have looked at plenty of examples of [rotateXYZ] and I understand the object and have made full use of it. And I have previously read about [pix_separator] and know the archives that refer to it. There's something else going on here about dataflow with Gem that I don't get. I can make up 10 other examples with 10 other objects if I have to. -John John Harrison wrote: Thanks Hans. I know the example patch already and I have [pix_rtx] working fine inasfar as I can get it to do what the example patch already shows. I think my question is more about data flow and Gem. My patch and [pix_rtx} are just an example of a more basic misunderstanding I believe I have which has not been cleared up despite many hours of work in Gem. Could somebody explain to me my [pix_rtx] in my example patch appears to be processed before the rotation instead of after? -John On Tue, Mar 24, 2009 at 9:33 PM, Hans-Christoph Steiner h...@eds.org mailto:h...@eds.org wrote: I think this is an appropriate place to discuss gem. In the Help browser, check out: examples - Gem - 04.video - 04.videoRTX.pd I had to do some trickery to get it working OK. Check the archives for details, I remember some discussion about all the separators. .hc On Mar 24, 2009, at 3:35 PM, John Harrison wrote: Attached is a small example patch of how I just don't get Gem...still... [pix_rtx] has a steady wave that normally flows from left to right. I would have thought that the attached patch shows me rotating the image first, then applying [pix_rtx]. So it would stand to reason in my mind I would see a rotated image with [pix_rtx] flowing from left to right. But that isn't the result I see. The patch has [pix_rtx] flowing from right to left now. It is as if [pix_rtx] is applied *before* the rotation instead of *after* as I would have expected. Grasping at straws, I have tried [pix_separator] between just about every object, but that makes no difference. What am I misunderstanding that makes the behavior of the patch make sense? And...how would I get [pix_rtx] to flow from left to right on a mirrored image? -John P.S. Are questions like this better on the Gem-dev list? That's a developer list but at the same time I feel a bit awkward putting too many Gem questions on a Pd list #N canvas 962 171 305 227 10; #X obj 29 -58 gemhead; #X obj 29 -35 pix_video; #X obj 29 44 pix_texture; #X obj 28 72 rectangle 4 3; #X obj 159 9 gemwin; #X msg 136 -34 create \, 1; #X msg 214 -33 destroy; #X obj 135 -57 loadbang; #X obj 29 17 pix_rtx; #X obj 29 -10 rotateXYZ 0 180 0; #X connect 0 0 1 0; #X connect 1 0 9 0; #X connect 2 0 3 0; #X connect 5 0 4 0; #X connect 6 0 4 0; #X connect 7 0 5 0; #X connect 8 0 2 0; #X connect 9 0 8 0; ___ Pd-list@iem.at mailto:Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list There is no way to peace, peace is the way. -A.J. Muste -- John Harrison http://alumni.media.mit.edu/~harrison #N canvas 373 161 758 508 10; #X obj 472 38 gemhead; #X obj 472 61 pix_video; #X obj 59 322 pix_texture; #X obj 59 352 rectangle 4 3; #X obj 48 12 gemwin; #X msg 25 -31 create \, 1; #X msg 103 -30 destroy; #X obj 24 -54 loadbang; #X obj 625 -6 + 1; #X floatatom 649 60 5 0 0 0 - - -; #X floatatom 369 111 5 0 0 0 - - -; #X obj 27 47 pix_buffer depot 3; #X obj 370 83 % 3; #X obj 625 21 % 3; #X obj 506 123 pix_buffer_write depot; #X obj 238 135 pix_buffer_read depot; #X obj 369 32 int 0; #X obj 414 -1
Re: [PD] still struggling with basic understanding of Gem dataflow
On Wed, Mar 25, 2009 at 10:22 AM, marius schebella marius.schebe...@gmail.com wrote: hi john, I just looked at your patches, here's what I think: 1) pix_buffer_write seems to copy and clear the pix buffer. so if your pix_video is connected to pix_buffer_write it is gone and you don't see it anymore (rectangle stays white). I am not sure if this is a bug, it seems strange to me, too. but as soon as you disconnect the pix_buffer_write the image will be shown on the rotated rectangle. Yes I also noticed that disconnecting the [pix_buffer_write] fixes the problem. i see that sort of thing in Gem all the time ([pix_mix] for example.) But wouldn't a [pix_separator] fix this then? It doesn't... 2) the rotateXYZ does not rotate the pixels, but only the geometry that this texture is mapped to (the rectangle). so in your left example you go from gemhead through buffer_read, texture to the rectangle. in that line no rotationXYZ is applied to the rectangle. marius. So why does the right example work? Because the rotation happens after the [pix_buffer_write] even though [pix_buffer_write] is later in the rendering chain? Or perhaps the rotation is ignored by [pix_buffer_write]? And at the same time [pix_buffer_write] sends the output of the rotation as a passthrough on its outlet? And also you are saying it would be normal and expected for the output of [pix_buffer_write] to be different than what [pix_buffer_write] is actually storing? If that isn't the case, example 1 and example 3 should produce the same results. Perhaps I need some rules about how Gem is different than Pd in terms of dataflow. So far it seems to me that a rendering chain in Gem shows conections but does not reveal the order in which these connections are processed i.e. if 3 objects are all connected to each other in a rendering chain in Gem i.e. [Gemhead] | [object 1] | [object 2] | [object 3] we cannot conclude that the output of [object 1] feeds the input of [object 2] and the output of [object 2] feeds the input of [object 3]. We only know that the data will be processed by objects 1, 2 and 3 but not in what order they will be processed. Further perhaps we cannot conclude that the output of an object is actually the result of the object having processed the data. Demonstrating this: in my patch example, [pix_buffer_write] outputs different data than it stores, or examples 1 and 3 would be the same. And this leads me to a more general statement of my original question: how can I determine the order in which objects are processed in Gem? And my specific example which started this thread: how would one apply a rotation to an image, then apply [pix_rtx] to the rotated image? -John 2009/3/24 John Harrison john.harri...@alum.mit.edu: Attached is a small example patch of how I just don't get Gem...still... [pix_rtx] has a steady wave that normally flows from left to right. I would have thought that the attached patch shows me rotating the image first, then applying [pix_rtx]. So it would stand to reason in my mind I would see a rotated image with [pix_rtx] flowing from left to right. But that isn't the result I see. The patch has [pix_rtx] flowing from right to left now. It is as if [pix_rtx] is applied *before* the rotation instead of *after* as I would have expected. Grasping at straws, I have tried [pix_separator] between just about every object, but that makes no difference. What am I misunderstanding that makes the behavior of the patch make sense? And...how would I get [pix_rtx] to flow from left to right on a mirrored image? -John P.S. Are questions like this better on the Gem-dev list? That's a developer list but at the same time I feel a bit awkward putting too many Gem questions on a Pd list #N canvas 962 171 305 227 10; #X obj 29 -58 gemhead; #X obj 29 -35 pix_video; #X obj 29 44 pix_texture; #X obj 28 72 rectangle 4 3; #X obj 159 9 gemwin; #X msg 136 -34 create \, 1; #X msg 214 -33 destroy; #X obj 135 -57 loadbang; #X obj 29 17 pix_rtx; #X obj 29 -10 rotateXYZ 0 180 0; #X connect 0 0 1 0; #X connect 1 0 9 0; #X connect 2 0 3 0; #X connect 5 0 4 0; #X connect 6 0 4 0; #X connect 7 0 5 0; #X connect 8 0 2 0; #X connect 9 0 8 0; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] still struggling with basic understanding of Gem dataflow
This is extremely helpful. I'm starting to get it. Comments/questions inline. chris clepper wrote: There are two types of objects in GEM: pix and OpenGL. Pix objects do work in the top to bottom manner like Pd DSP objects. would [pix_coordinate] be an exception to this? I've been playing with it and it seems to behave the way you have described OpenGL objects and not GEM objects. I read the help patch about [pix_texture] reassigning the coordinate values, but that still didn't explain all the behavior I was seeing. The convention in GEM is to put the GL objects after the pix_ ones showing that once the pix_ processes are done on the CPU it is time for the GL processes on the GPU to start. I understand you to be saying that the GL processes will always be applied after the pix_ processes. If that is the case, then it sounds like there is no way to have [rotateXYZ] applied before [pix_rtx]. Makes sense. For the more general case, is it correct that there is no way in GEM to give an arbitrary rotation of an image as input to a pix_ object since there is no Gem pix_ object with arbitrary rotation function? Figuring that might be the case, I tried to build [pix_rotate] using [pix_coordinate]...and this led me to the question about about [pix_coordinate] Using pdp_rotate, pix_2gem and gem2pdp, I did successfully build a pix_ rotator. On the chance it might be helpful to see, I attached a demo patch which feeds a rotated video stream to [pix_rtx] then rotates the stream back to the way it was. While it more-or-less works it seems a bit scabby. Is there a better way? There are lots of exceptions to Pd rules in GEM and there is really no way around them. It is kind of like learning English - I before E except after C, excepting all of those words that ignore the rule. As long as I can make sense of what the rules are, which objects break them, and some rough idea as to why, I'm cool with that. Thank you again for your help. As Hans suggests, I'd like to find a way to help organize, then share this information, whether it be on the wiki or in some other meaningful way. -John #N canvas 65 149 758 508 10; #X obj 95 44 gemhead; #X obj 95 67 pix_video; #X obj 235 386 pix_texture; #X obj 234 405 rectangle 4 3; #X obj 48 12 gemwin; #X msg 25 -31 create \, 1; #X msg 103 -30 destroy; #X obj 24 -54 loadbang; #X obj 229 245 pix_rtx; #X obj 166 150 pdp_rotate; #X obj 184 120 pix_2pdp; #X floatatom 244 96 5 0 0 0 - - -; #X obj 167 172 pdp2gem; #X obj 116 153 gemhead; #X obj 176 96 t a b; #X msg 151 24 colorspace YUV; #X obj 149 3 loadbang; #X obj 235 331 pdp_rotate; #X obj 253 301 pix_2pdp; #X obj 236 353 pdp2gem; #X obj 185 334 gemhead; #X obj 245 277 t a b; #X obj 304 202 * -1; #X msg 231 217 set; #X obj 246 122 t f b; #X text 284 96 - change angle of wave of rtx; #X connect 0 0 1 0; #X connect 1 0 14 0; #X connect 2 0 3 0; #X connect 5 0 4 0; #X connect 6 0 4 0; #X connect 7 0 5 0; #X connect 8 0 21 0; #X connect 9 0 12 0; #X connect 10 1 9 0; #X connect 11 0 24 0; #X connect 12 0 8 0; #X connect 13 0 12 0; #X connect 14 0 10 0; #X connect 14 1 10 0; #X connect 15 0 1 0; #X connect 16 0 15 0; #X connect 17 0 19 0; #X connect 18 1 17 0; #X connect 19 0 2 0; #X connect 20 0 19 0; #X connect 21 0 18 0; #X connect 21 1 18 0; #X connect 22 0 17 1; #X connect 23 0 8 0; #X connect 24 0 9 1; #X connect 24 0 22 0; #X connect 24 1 23 0; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
