Re: [PD] list-abs
On Wed, Jul 11, 2012 at 06:18:46PM +0200, João Pais wrote: I think this abstraction doesn't load, because it has a conflict with the folder(library) name. writing [list-abs/list-abs] works out well. does this happen with other libraries, also with externals or just with abstractions? never noticed. As far as I remember it is related to some kind of bug in Pd-extended or the [import] external or the libdir format or so, which fail when a libdir contains an abstraction that has the same name as the libdir. For the same reason the sssad abstraction was banned from Pd-extended in the past. Maybe that has changed now. Personally I believe, a library format where you cannot use the same name for an object as the library's name is a flawed format. Anyway as the [list]-abs collection is a collection of abstractions, there is no need to use -lib to load it, use -path instead. Ciao -- Frank BarknechtDo You RjDj.me? _ __footils.org__ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Video synthesizer emulation
Ed: I don't really get what is your conversion for, can you elaborate a bit more? Tim: I've been already using [pix_sig2pix~] :) That said, thanks to rdz and matju on IRC I've managed to solve the high frequency issue. Actually the problems were two: me considering a crazy thing to set a sample rate in the mhz domain and the hardcoded limitation in the portaudio api of 2 mhz (if you go past this value it will reset the sample rate without telling you, that's why my first experiments were unsuccessful). Right now [pix_sig2pix~] is now working as aspected, 1 mhz frequency is enough to have all the vertical bars and stuff. I'll need to fine tune [block~] but I think it will work quite nicely in the end. Thanks everybody for the help! 2012/7/12 tim vets timv...@gmail.com 2012/7/12 tim vets timv...@gmail.com [sig2pix~] ? sorry, that shoulld be: [pix_sig2pix~] 2012/7/12 Off Screen offscr...@personalreport.it Hello everybody, I'm trying to emulate an analogue video synthesizer using GEM. My starting point is the LZX system, an old school analogue video synth which has been rebuilt today using modern circuitry components. Obviously that wonderful tool is way too expansive for me so I thought I could build something similar using Pd. My first goal is to succesfully emulate the Video Waveform Generator: http://www.youtube.com/watch?v=pbpFgvttBZw Here is a detailed description: http://www.lzxindustries.net/modules/video-waveform-generator I've tried to use [pix_sig2pix~], it works quite nicely and the patterns I get are almost identical to the ones in the video (including all the fm and pwm stuff). The problems are in the second part of the video, when they use high frequencies (~ 3mhz) to generate vertical bands. I'm pretty sure I can't use the same approach with Pd. The other option would be to use GLSL shaders, but it has two major drawbacks: first, it won't be using raw signal but control messages (no sound generation); second, it won't be patchable, once the parameters are converted into an image all the informations about frequencies are lost and I won't be able to use it to modulate another shader. I'd like to know from somebody who has much more experience than me what would be the best approach. Are there any limitations or constraints within the [pix_sig2pix~] object or Pd itself that I should be aware of? Any advice will be extremely appreciated. ___ 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] Reading a specific image from [pix_buffer] and saving it using [pix_write]
Thanks Charles. As you mentioned, YUV consists Y for Luma, U and V for the color difference of from Luma to Blue and Red(chrominance), basically describes colors based on brightness. I could realize with Wikipedia. http://en.wikipedia.org/wiki/YUV It also seems 1 value for 2 pixels makes sense for weird saved jpeg file. For converting YUV to RGB, the formula is necessary. http://www.fourcc.org/fccyvrgb.php So, I would like to know whether YUV data in buffer are automatically recognized and converted to RGB data with this formula for saving a jpeg file when save command to [pix_buffer] works. Otherwise, do we have to use [pix_rgba] before putting data in [pix_buffer]? Best, Sei 2012/7/10 Charles Goyard c...@fsck.fr: Seiichiro MATSUMURA wrote: Somehow colors are changed, the width become half and a picture itself is doubled. iirc, in YUV you have a luminance layer (Y) and then the colors encoded in a strange way, like 1 value for 2 pixels for the width in the U and V layers. Well, something like that. Maybe it's a bug in the colorspace conversion because you don't make it explicit ? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- -- __/__/__/__/__/__/__/__/__/__/__/__/__/__/__/__/__/ Seiichiro Matsumura s...@low-tech-ism.com http://low-tech-ism.com/ __/__/__/__/__/__/__/__/__/__/__/__/__/__/__/__/__/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Reading a specific image from [pix_buffer] and saving it using [pix_write]
On 07/10/2012 02:03 PM, Seiichiro MATSUMURA wrote: The attached picture named test.jpg is what I saved using the attached patch. The original pict in a buffer is like right hand side of another attached picture screenshot_gemwin.jpg. Somehow colors for starters, the test.jpg, is really a TIFF image. so it seems that the Gem is even choosing the wrong image type. are changed, the width become half and a picture itself is doubled. This is what I meant changing color space and resolution. looks like a bug. Is this not happening on your OSX? my OSX is called linux. I am using GEM: ver: 0.92.3. which image-writing backends are installed (Gem should printout something like Image saving support: QuickTime) The printout should be come out on Pd window? There is no printout when saving a frame of pix_buffer. How can I get it? installing a recent version of Gem. the last stable version of Gem is 0.93.3, and since Gem has a slow release cycle, this means that 0.92.3 is really old. fgmadr IOhannes ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] scale ?
Hi ! And Thankyou very much ! In the end of it all I can sum: 1) [autoscale] - dynamically moves it's scale-range if it has [1( at it's right-most inlet (and it has it by default) . 2) [range] - we can defy input and output range in it and linear or logarythmic scaling (by 1 or 0 to the right-most inlet) 3) [maxlib/scale] - works the same as [range] and seems to be it's prototype. So the HELP-file for [range] can be just copied from [maxlib/scale] . Maybe somebody can do it ? Thanks ! Fri, 13 Jul 2012 18:04:44 +0300 от Alexandros Drymonitis adr...@googlemail.com: first argument: lowest value of the range you want to scale second argument: highest value of the range you want to scale third argument: lowest value of the desired range forth argument: highest value of the desired range These arguments can be replaced with numbers sent to the 2nd, 3rd, 4th and 5th inlet, respectively. Not sure what the last inlet does, though. On Fri, Jul 13, 2012 at 1:22 PM, Фывапр Олджэвич tofuc...@inbox.ru wrote: Hi everyone and thanks ! We found [range] object, which is not mentioned in helps and manuals and references... and it seems to work. Does anyone have HELP for this object ? thankyou ! Thu, 12 Jul 2012 18:30:54 +0100 (BST) от Ed Kelly morph_2...@yahoo.co.uk: Autoscale - I am not sure about this, but my own autoscaler needs to be primed by the lowest and highest values you expect from the input. Otherwise the patch gradually re-calibrates itself, so that a new value higher than any previous values will reset the scaling value. Anyway, you can find out more about this patch - enclosed with this email. Ed Gemnotes-0.1alpha: Live music notation for Pure Data http://sharktracks.co.uk/ -- From: Фывапр Олджэвич tofuc...@inbox.ru To: PD-list pd-list@iem.at Sent: Thursday, 12 July 2012, 14:45 Subject: [PD] scale ? Hi ! how to do simple scaling in PD ? not via [autoscale] which is really unstable there is a [scale] object in MAX but here it is for GEM ___ 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 -- http://drymonitis.me/ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] nport configuration with pure data
On 13/07/12 06:05, Pagano, Patrick wrote: I am soliciting some help for using an nport serial to Ethernet controller. I Have the nport server installed and configured and on an IP There are 16 COMs starting at COM3 of course Are there any objects that in pure data that might make it easy to turn 5 projectors on/off with this device? I want to hit it via Network and then use pd to send out rs232 controls [comport] is for serial ports, assuming that the nport must be providing the driver that makes them show up on your local system as serial ports Simon ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
