# Libraries

**URL:** https://discourse.processing.org/c/processing/processing-libraries/19.md?page=7

[Latest](https://discourse.processing.org/latest.md) · [Categories](https://discourse.processing.org/categories.md) · [Tags](https://discourse.processing.org/tags.md)

**Page:** 8

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## [Issue with VideoExport library by hamoid](https://discourse.processing.org/t/issue-with-videoexport-library-by-hamoid/43313)

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**Author:** [@Altenblpc](https://discourse.processing.org/u/Altenblpc)\
**Replies:** 1\
**Last updated:** [November 26, 2023, 12:35pm UTC](https://discourse.processing.org/t/issue-with-videoexport-library-by-hamoid/43313 "2023-11-26T12:35:59Z")

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I am attempting to use the VideoExport library by hamoid but am running into a compile exception with the error ClassNotFoundException: com.hamoid.VideoExport. This means even the example patch ‘basic’ from the library d…

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## [Having trouble with P3D and ControlP5 in m1 MAC](https://discourse.processing.org/t/having-trouble-with-p3d-and-controlp5-in-m1-mac/43294)

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**Author:** [@eduzal](https://discourse.processing.org/u/eduzal)\
**Replies:** 1\
**Last updated:** [November 23, 2023, 10:04pm UTC](https://discourse.processing.org/t/having-trouble-with-p3d-and-controlp5-in-m1-mac/43294 "2023-11-23T22:04:35Z")

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hi’m in an m1 mac now. i’ve written my code in 3.5.4 and it was working fine on an intel architecture. when moved to m1 it all became a catastrophe. the controlFrame won’t open code import websockets.\*; import controlP…

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## [Video Library for Processing 4 does not run on this architecture](https://discourse.processing.org/t/video-library-for-processing-4-does-not-run-on-this-architecture/43292)

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**Author:** [@Marc](https://discourse.processing.org/u/Marc)\
**Replies:** 0\
**Last updated:** [November 23, 2023, 11:36am UTC](https://discourse.processing.org/t/video-library-for-processing-4-does-not-run-on-this-architecture/43292 "2023-11-23T11:36:55Z")

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Moving up to a pi 5 from 3…I run into the error “Video Library for Processing 4 does not run on this architecture : linux-aarch64” I’ve done something wrong and after hours of searching and trying…no idea where to turn n…

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## [Multiple input audio devices](https://discourse.processing.org/t/multiple-input-audio-devices/43239)

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**Author:** [@Pandela](https://discourse.processing.org/u/Pandela)\
**Replies:** 1\
**Last updated:** [November 21, 2023, 8:39am UTC](https://discourse.processing.org/t/multiple-input-audio-devices/43239 "2023-11-21T08:39:06Z")

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Recently I was messing around with Minum and found a way to read multiple virtual audio devices, in Processing 4.3 on Windows 10. Is there a more efficient way I can do this? I’m really only interested in the volume/ampl…

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## [Interface with launchpad x](https://discourse.processing.org/t/interface-with-launchpad-x/43176)

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**Author:** [@artomat](https://discourse.processing.org/u/artomat)\
**Replies:** 1\
**Last updated:** [November 9, 2023, 3:17pm UTC](https://discourse.processing.org/t/interface-with-launchpad-x/43176 "2023-11-09T15:17:47Z")

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Looking for a working solution to use launchpad x to trigger processing functions. Thanks

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## [Odd-Even horizontal pixel sorting using fragment shader. Why doesn't it work properly?](https://discourse.processing.org/t/odd-even-horizontal-pixel-sorting-using-fragment-shader-why-doesnt-it-work-properly/43150)

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**Author:** [@obry](https://discourse.processing.org/u/obry)\
**Replies:** 0\
**Last updated:** [November 5, 2023, 1:13pm UTC](https://discourse.processing.org/t/odd-even-horizontal-pixel-sorting-using-fragment-shader-why-doesnt-it-work-properly/43150 "2023-11-05T13:13:57Z")

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UPD1: I added the line below right after defining vec2 uv. this solved flipping. But now, it’s clear that pixel sorting doesn’t work properly, THRESHOLD value of 1.0 shouldn’t sort pixels and it indeed isn’t, while valu…

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## [Processing can't find the camera - Video Libraries don't work](https://discourse.processing.org/t/processing-cant-find-the-camera-video-libraries-dont-work/25128)

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**Author:** [@fozon](https://discourse.processing.org/u/fozon)\
**Replies:** 44\
**Last updated:** [November 1, 2023, 11:33pm UTC](https://discourse.processing.org/t/processing-cant-find-the-camera-video-libraries-dont-work/25128 "2023-11-01T23:33:37Z")

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Hey! For some reason whenever I try an example from a library, it doesn’t work. It opens a gray window and after it freezers for a while and then reports an error. For example when I run GettingStartedCapture I get: …

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## [Video delay effect, adjustable delay time](https://discourse.processing.org/t/video-delay-effect-adjustable-delay-time/43067)

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**Author:** [@ilya.z](https://discourse.processing.org/u/ilya.z)\
**Replies:** 4\
**Last updated:** [October 29, 2023, 4:42pm UTC](https://discourse.processing.org/t/video-delay-effect-adjustable-delay-time/43067 "2023-10-29T16:42:50Z")

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I want to create a (live) video delay effect with adjustable delay time. (tweaking delay time with mouseX). Works ok at start, but then delayed image suddenly disappears. Two video images: one without delay, and on to…

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## [BoofCV not working properly with P2D/P3D](https://discourse.processing.org/t/boofcv-not-working-properly-with-p2d-p3d/42969)

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**Author:** [@Shchahliak\_Stas](https://discourse.processing.org/u/Shchahliak_Stas)\
**Replies:** 1\
**Last updated:** [October 25, 2023, 7:36pm UTC](https://discourse.processing.org/t/boofcv-not-working-properly-with-p2d-p3d/42969 "2023-10-25T19:36:26Z")

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I’ve been trying to make webcam QR code detection with BoofCV. I use the DetectQrCode example from BoofCV repository. For my application I need it to work at 60fps (with resizing the image from 640\*480 to 1440x1080), whi…

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## [Video library problems -- loop() and initiation location](https://discourse.processing.org/t/video-library-problems-loop-and-initiation-location/43041)

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**Author:** [@LuisGranados](https://discourse.processing.org/u/LuisGranados)\
**Replies:** 0\
**Last updated:** [October 23, 2023, 6:52pm UTC](https://discourse.processing.org/t/video-library-problems-loop-and-initiation-location/43041 "2023-10-23T18:52:07Z")

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I am encountering problems trying to use the video library in Processing 4.3 on Windows 11. First, the loop() method within the Movie object does not work as it is supposed to. Even when I cut and paste the exact code f…

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## [Label is not updated inside a for loop](https://discourse.processing.org/t/label-is-not-updated-inside-a-for-loop/43018)

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**Author:** [@Jose\_Luis](https://discourse.processing.org/u/Jose_Luis)\
**Replies:** 1\
**Last updated:** [October 20, 2023, 9:42am UTC](https://discourse.processing.org/t/label-is-not-updated-inside-a-for-loop/43018 "2023-10-20T09:42:20Z")

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I try to update a label inside a for loop but it is not updated until the loop ends, I use processin 4.3 G4P GUI Builder 4.4.2 on linux Mint my code is the following public void button1\_click1(GButton source, GEvent ev…

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## [Problem with Spektrum (library)](https://discourse.processing.org/t/problem-with-spektrum-library/43006)

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**Author:** [@itan21](https://discourse.processing.org/u/itan21)\
**Replies:** 19\
**Last updated:** [October 20, 2023, 5:50am UTC](https://discourse.processing.org/t/problem-with-spektrum-library/43006 "2023-10-20T05:50:36Z")

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Hello everyone I have a problem connecting the library. I am trying to run the Spektrum program (GitHub - pavels/spektrum: rtl-sdr spectrum analyzer ) I don’t get the problem No library found for rtlspektrum Libraries m…

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## [Video halts shortly after loading](https://discourse.processing.org/t/video-halts-shortly-after-loading/42997)

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**Author:** [@enrike](https://discourse.processing.org/u/enrike)\
**Replies:** 0\
**Last updated:** [October 17, 2023, 6:08pm UTC](https://discourse.processing.org/t/video-halts-shortly-after-loading/42997 "2023-10-17T18:08:00Z")

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Hi I have this code below that keeps playing random short videos from a folder. They are all around 10 secs. I noticed that randomly once in a while when loading a new video the program halts but gives no error at all. …

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## [Save a PShape on Hard Drive (please help)](https://discourse.processing.org/t/save-a-pshape-on-hard-drive-please-help/34389)

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**Author:** [@Chrisir](https://discourse.processing.org/u/Chrisir)\
**Replies:** 6\
**Last updated:** [October 15, 2023, 5:46pm UTC](https://discourse.processing.org/t/save-a-pshape-on-hard-drive-please-help/34389 "2023-10-15T17:46:05Z")

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hello all, I am generating an PShape from a CSG (with JCSG) and wanted to ask whether I can save the PShape in one go. like (pseudo code) PShape myShape; ....... myShape.save(sketchPath("")+"sample.obj"); Any ideas? …

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## [What can be a good alternative to Syphon in Windows?](https://discourse.processing.org/t/what-can-be-a-good-alternative-to-syphon-in-windows/42959)

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**Author:** [@tmm88](https://discourse.processing.org/u/tmm88)\
**Replies:** 0\
**Last updated:** [October 13, 2023, 12:07pm UTC](https://discourse.processing.org/t/what-can-be-a-good-alternative-to-syphon-in-windows/42959 "2023-10-13T12:07:58Z")

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what can be a good alternative to syphon in windows? i heard of: Spout NDI (network device interface) what is your piece of advice

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## [Which sound library should I use?](https://discourse.processing.org/t/which-sound-library-should-i-use/42935)

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**Author:** [@berndbausch](https://discourse.processing.org/u/berndbausch)\
**Replies:** 25\
**Last updated:** [October 14, 2023, 12:28pm UTC](https://discourse.processing.org/t/which-sound-library-should-i-use/42935 "2023-10-14T12:28:46Z")

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I am aware of three libraries: Built-in Sound, Minim, and Beads. My main goal is sound synthesis. While I have not studied them in-depth (I want to avoid investing time in learning about a tool I won’t use), this is wha…

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## [Sound library audio formats](https://discourse.processing.org/t/sound-library-audio-formats/42841)

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**Author:** [@kellyegan](https://discourse.processing.org/u/kellyegan)\
**Replies:** 6\
**Last updated:** [October 13, 2023, 2:26am UTC](https://discourse.processing.org/t/sound-library-audio-formats/42841 "2023-10-13T02:26:30Z")

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I am having some weird results for playing specific wav files I have exported from Audacity in the Sound library. Certain files will glitch and distort. The audio plays fine in other audio program and when using other so…

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## [Get value from slider in child window to main window](https://discourse.processing.org/t/get-value-from-slider-in-child-window-to-main-window/42953)

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**Author:** [@Leo\_Aguiar](https://discourse.processing.org/u/Leo_Aguiar)\
**Replies:** 1\
**Last updated:** [October 12, 2023, 9:27pm UTC](https://discourse.processing.org/t/get-value-from-slider-in-child-window-to-main-window/42953 "2023-10-12T21:27:28Z")

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Hi, I have a sketch that builds on top of the MultipleWindows example provided with the Processing IDE. I am trying to use the controlP5 library sliders to change variables in the main sketch but I don’t know why it isn’…

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## [Two MIDI Outputs](https://discourse.processing.org/t/two-midi-outputs/42921)

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**Author:** [@Grumpy\_Mike](https://discourse.processing.org/u/Grumpy_Mike)\
**Replies:** 1\
**Last updated:** [October 9, 2023, 11:48am UTC](https://discourse.processing.org/t/two-midi-outputs/42921 "2023-10-09T11:48:18Z")

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I am trying to connect two devices to the MIDI outputs in Processing 4. The problem is that in order to do so I have to use String destination = "device1"; String destination = "device2"; either one will work but not …

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## [I'm having issues displaying text on a point in a graph when you hover over it in Processing4](https://discourse.processing.org/t/im-having-issues-displaying-text-on-a-point-in-a-graph-when-you-hover-over-it-in-processing4/42923)

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**Author:** [@E142](https://discourse.processing.org/u/E142)\
**Replies:** 2\
**Last updated:** [October 8, 2023, 10:57pm UTC](https://discourse.processing.org/t/im-having-issues-displaying-text-on-a-point-in-a-graph-when-you-hover-over-it-in-processing4/42923 "2023-10-08T22:57:52Z")

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I’m having issues displaying text on a point in a graph when you hover over it in Processing4.I have tried using a loop to display the text but it seems the graph plot doesn’t allow anything display on it. I dont know wh…

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## [How to clear points when using GPlot functions](https://discourse.processing.org/t/how-to-clear-points-when-using-gplot-functions/42912)

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**Author:** [@E142](https://discourse.processing.org/u/E142)\
**Replies:** 3\
**Last updated:** [October 8, 2023, 9:48pm UTC](https://discourse.processing.org/t/how-to-clear-points-when-using-gplot-functions/42912 "2023-10-08T21:48:28Z")

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So I have a code that draws a graph using GPlot functions. I am trying to create a function that changes the points on the graph, so I’m looking for a function to clear the previous points. I tried Plot1.clear(), but it …

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## [Shapes3D: Toroid class is missing (new version of library)](https://discourse.processing.org/t/shapes3d-toroid-class-is-missing-new-version-of-library/42862)

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**Author:** [@Chrisir](https://discourse.processing.org/u/Chrisir)\
**Replies:** 6\
**Last updated:** [October 7, 2023, 5:11pm UTC](https://discourse.processing.org/t/shapes3d-toroid-class-is-missing-new-version-of-library/42862 "2023-10-07T17:11:20Z")

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Hello all, I just try using an old Sketch, but it says: shapes3d: Toroid class is missing Can anybody help me? Chrisir P.S. also failing boxBoard\[iBox\].setSize(80, 5, 80); boxBoard\[iBox\].draw(); (it’s an arr…

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## [Shapes3D: Box.draw() doesn't work anymore (new version of library)](https://discourse.processing.org/t/shapes3d-box-draw-doesnt-work-anymore-new-version-of-library/39860)

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**Author:** [@Chrisir](https://discourse.processing.org/u/Chrisir)\
**Replies:** 12\
**Last updated:** [October 6, 2023, 4:42pm UTC](https://discourse.processing.org/t/shapes3d-box-draw-doesnt-work-anymore-new-version-of-library/39860 "2023-10-06T16:42:44Z")

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@quark using shapes3d (from a very old Sketch from my archives) here and wanted to say (used to say) MyBoxes\[i\].draw(); doesn’t work anymore It seems, it used to work without a parameter, but now it doesn’t? …

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## [G4P checkbox bigger](https://discourse.processing.org/t/g4p-checkbox-bigger/42863)

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**Author:** [@RichardDL](https://discourse.processing.org/u/RichardDL)\
**Replies:** 2\
**Last updated:** [October 4, 2023, 10:03pm UTC](https://discourse.processing.org/t/g4p-checkbox-bigger/42863 "2023-10-04T22:03:11Z")

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I want to make the G4P checkbox bigger. In the included example there’s a checkbox created by this line. // Checkbox cbxSticky = new GCheckbox(this, 230, 130, 120, 40, "Stick to ticks"); // …

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## [Problems Sending ControlP5+oscP5 Messages From Processing To MaxMSP - Any Possible Advice?](https://discourse.processing.org/t/problems-sending-controlp5-oscp5-messages-from-processing-to-maxmsp-any-possible-advice/42890)

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**Author:** [@tmm88](https://discourse.processing.org/u/tmm88)\
**Replies:** 2\
**Last updated:** [October 4, 2023, 6:22pm UTC](https://discourse.processing.org/t/problems-sending-controlp5-oscp5-messages-from-processing-to-maxmsp-any-possible-advice/42890 "2023-10-04T18:22:04Z")

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Greetings i am trying to send messages from processing to max, but i am not being able to do so. you can find my code below. any feedback would be highly appreciated import controlP5.\*; import oscP5.\*; import netP5.\*; …

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## [New Processing Sound Library Release—Looking for Feedback](https://discourse.processing.org/t/new-processing-sound-library-release-looking-for-feedback/42877)

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**Author:** [@sableraph](https://discourse.processing.org/u/sableraph)\
**Replies:** 3\
**Last updated:** [October 4, 2023, 3:30pm UTC](https://discourse.processing.org/t/new-processing-sound-library-release-looking-for-feedback/42877 "2023-10-04T15:30:48Z")

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Hi everyone, We’re close to launching an updated version of the Processing Sound Library, featuring enhancements like multi-channel output, a new pitch detection analyzer, improved filter controls, and more. This update…

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## [EOS webcam utility](https://discourse.processing.org/t/eos-webcam-utility/42883)

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**Author:** [@simonbiggs](https://discourse.processing.org/u/simonbiggs)\
**Replies:** 0\
**Last updated:** [October 3, 2023, 5:09am UTC](https://discourse.processing.org/t/eos-webcam-utility/42883 "2023-10-03T05:09:49Z")

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Hi everyone A question about the Processing video library on Mac OS. I have had issues with this in the past when using third party camera utilities for video input. Processing seems to be very particular about what uti…

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## [Movie as loop without getting stuck](https://discourse.processing.org/t/movie-as-loop-without-getting-stuck/42848)

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**Author:** [@blindschleiche](https://discourse.processing.org/u/blindschleiche)\
**Replies:** 2\
**Last updated:** [October 2, 2023, 8:16am UTC](https://discourse.processing.org/t/movie-as-loop-without-getting-stuck/42848 "2023-10-02T08:16:02Z")

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hello i would like to play a movie as loop. unfortunately it always stucks at the end for a few millis before it plays over again. what can i do to prevent this? thank you for help Movie myMovie; void setup() { siz…

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## [Is there a limit of input channels in Sound library?](https://discourse.processing.org/t/is-there-a-limit-of-input-channels-in-sound-library/42137)

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**Author:** [@cento](https://discourse.processing.org/u/cento)\
**Replies:** 4\
**Last updated:** [September 21, 2023, 10:39pm UTC](https://discourse.processing.org/t/is-there-a-limit-of-input-channels-in-sound-library/42137 "2023-09-21T22:39:32Z")

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Processing 4, and Sound library My project analyzes sound from various channels in a single input device. It worked fine connecting an external audio interface with two channels. Now I try to expand the project to wor…

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## [Syphon library crash](https://discourse.processing.org/t/syphon-library-crash/42853)

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**Author:** [@olliebown](https://discourse.processing.org/u/olliebown)\
**Replies:** 2\
**Last updated:** [September 29, 2023, 9:16am UTC](https://discourse.processing.org/t/syphon-library-crash/42853 "2023-09-29T09:16:32Z")

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I’ve been happily running the Syphon library, then one day to the next it fails to run, with this error. Nothing has changed, not software update or anything. I’ve tried to clean install the Syphon library and I still g…

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