# Processing

**URL:** https://discourse.processing.org/c/processing/6.md?no_subcategories=false&page=3

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

**Page:** 4

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## [Rendering animation issue](https://discourse.processing.org/t/rendering-animation-issue/47755)

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**Author:** [@AniManOtaku](https://discourse.processing.org/u/AniManOtaku)\
**Replies:** 7\
**Last updated:** [January 18, 2026, 10:20am UTC](https://discourse.processing.org/t/rendering-animation-issue/47755 "2026-01-18T10:20:33Z")

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Hello. I am developing a small application for creating animations just for myself. I want to create the following structure: the program has folders, and those folders have layers. The program has a main folder, to whi…

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## [Example code for writing dxf files with arcs, circles, and ellipses](https://discourse.processing.org/t/example-code-for-writing-dxf-files-with-arcs-circles-and-ellipses/47754)

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**Author:** [@jack23sms](https://discourse.processing.org/u/jack23sms)\
**Replies:** 0\
**Last updated:** [January 15, 2026, 3:15pm UTC](https://discourse.processing.org/t/example-code-for-writing-dxf-files-with-arcs-circles-and-ellipses/47754 "2026-01-15T15:15:03Z")

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I have seen a few questions about writing dxf files that contain arcs or circles. The processing dxf library treats these by breaking them down to lines which generates excessively long files. I recently ran across an o…

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## [G4P GTextField looses focus after setText](https://discourse.processing.org/t/g4p-gtextfield-looses-focus-after-settext/47740)

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**Author:** [@sterretje](https://discourse.processing.org/u/sterretje)\
**Replies:** 6\
**Last updated:** [January 13, 2026, 3:11pm UTC](https://discourse.processing.org/t/g4p-gtextfield-looses-focus-after-settext/47740 "2026-01-13T15:11:47Z")

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I have been working with G4P for four days. I have a simple form to enter or modify data and I’m experiencing a problem with the two GTextField controls. The data will be saved to and read from a file. The code that…

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## [Newbie Library svg.jar on old Processing 2.1.2](https://discourse.processing.org/t/newbie-library-svg-jar-on-old-processing-2-1-2/47744)

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**Author:** [@salvmec](https://discourse.processing.org/u/salvmec)\
**Replies:** 0\
**Last updated:** [January 12, 2026, 8:37pm UTC](https://discourse.processing.org/t/newbie-library-svg-jar-on-old-processing-2-1-2/47744 "2026-01-12T20:37:44Z")

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Dear All, I’m quite new on Processing, I’ve just built a V pen Plotter and I’m Using Processing 2.1.2 in order to run polargraph controller (newer version do not run properly). Now I’m trying another application named S…

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## [Save image from an applet](https://discourse.processing.org/t/save-image-from-an-applet/47737)

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**Author:** [@larry](https://discourse.processing.org/u/larry)\
**Replies:** 1\
**Last updated:** [January 12, 2026, 2:04am UTC](https://discourse.processing.org/t/save-image-from-an-applet/47737 "2026-01-12T02:04:22Z")

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Can someone please tell me if it is possible to use saveFrame() from a child applet.

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## [Help Shape the Future of Processing 💙](https://discourse.processing.org/t/help-shape-the-future-of-processing/47726)

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**Author:** [@sableraph](https://discourse.processing.org/u/sableraph)\
**Replies:** 2\
**Last updated:** [January 10, 2026, 4:48pm UTC](https://discourse.processing.org/t/help-shape-the-future-of-processing/47726 "2026-01-10T16:48:17Z")

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We just launched the Processing Community Survey 2025, and we’d really like to hear from you! (Yes, I know it’s 2026 but there were delays :sweat\_smile:) Your answers directly influence what we prioritize next, from the…

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## [Processing in a Java IDE (i.e. Netbeans)?](https://discourse.processing.org/t/processing-in-a-java-ide-i-e-netbeans/47731)

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**Author:** [@EricRogerGarcia](https://discourse.processing.org/u/EricRogerGarcia)\
**Replies:** 1\
**Last updated:** [January 9, 2026, 8:33pm UTC](https://discourse.processing.org/t/processing-in-a-java-ide-i-e-netbeans/47731 "2026-01-09T20:33:52Z")

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I’d like to be able to run Processing code in a java IDE (Netbeans) to see how it’d be possible to use Java Libraries with a processing sketch (or to use Java ways to run Java code in a browser). I know there are posts …

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## [loadImage() with base64 encoded jpg](https://discourse.processing.org/t/loadimage-with-base64-encoded-jpg/47681)

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**Author:** [@papertree](https://discourse.processing.org/u/papertree)\
**Replies:** 8\
**Last updated:** [January 7, 2026, 8:00pm UTC](https://discourse.processing.org/t/loadimage-with-base64-encoded-jpg/47681 "2026-01-07T20:00:07Z")

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I am writing a program that gets an image encoded in base64 through the Serial port. I want to then load that image in my Processing program to analyze it. It seems that loadImage() should work with base64 encoded data,…

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## [Need Help for clipping lane](https://discourse.processing.org/t/need-help-for-clipping-lane/47702)

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**Author:** [@picar](https://discourse.processing.org/u/picar)\
**Replies:** 8\
**Last updated:** [January 7, 2026, 12:24pm UTC](https://discourse.processing.org/t/need-help-for-clipping-lane/47702 "2026-01-07T12:24:03Z")

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Hallo, when i use perspective(fovy, aspect, zNear, zFar) \> favy & aspect works as it should but zNear & zFar change nothing. I use Processing 4.4.10 setup() \>P3D & PGraphics matrix... . . matrix.beginDraw(); matrix.b…

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## [External webcam not working on Apple Silicon (M4) Mac Mini](https://discourse.processing.org/t/external-webcam-not-working-on-apple-silicon-m4-mac-mini/47686)

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**Author:** [@Dulce\_Criatura](https://discourse.processing.org/u/Dulce_Criatura)\
**Replies:** 3\
**Last updated:** [January 6, 2026, 2:41pm UTC](https://discourse.processing.org/t/external-webcam-not-working-on-apple-silicon-m4-mac-mini/47686 "2026-01-06T14:41:59Z")

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Hi everyone, I’m trying to use an external Logitech webcam (Brio 300) in Processing on a Mac Mini M4 (Apple Silicon). Processing detects the camera (it appears in the device list), but it fails to actually capture vide…

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## [How to send an argument when using processing-java](https://discourse.processing.org/t/how-to-send-an-argument-when-using-processing-java/47691)

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**Author:** [@paulstgeorge](https://discourse.processing.org/u/paulstgeorge)\
**Replies:** 9\
**Last updated:** [January 5, 2026, 6:11pm UTC](https://discourse.processing.org/t/how-to-send-an-argument-when-using-processing-java/47691 "2026-01-05T18:11:27Z")

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I can run a Processing sketch from the command line using processing-java --sketch=pathtosketchfolder --run But, how do I send an argument, such as the value of a variable, at the same time?

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## [Different Processing icon colours (or colors)](https://discourse.processing.org/t/different-processing-icon-colours-or-colors/47646)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 1\
**Last updated:** [December 27, 2025, 3:34pm UTC](https://discourse.processing.org/t/different-processing-icon-colours-or-colors/47646 "2025-12-27T15:34:55Z")

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Hello Processing team! The current Processing icon gets lost in a sea of other blue (common) icons. This is my taskbar and blue (I changed one) is very common: I have multiple versions of Processing and can hover ov…

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## [Processing 4.5 beta is out!](https://discourse.processing.org/t/processing-4-5-beta-is-out/47637)

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**Author:** [@ProcessingOrg](https://discourse.processing.org/u/ProcessingOrg)\
**Replies:** 13\
**Last updated:** [December 24, 2025, 4:20pm UTC](https://discourse.processing.org/t/processing-4-5-beta-is-out/47637 "2025-12-24T16:20:31Z")

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The new Processing beta is out, right in time for your holiday sketching needs! It includes a brand new design for the Preferences and Welcome screens, plus a set of bug fixes (see the release notes for details). Dow…

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## [Unable to Install Java Package as a Library](https://discourse.processing.org/t/unable-to-install-java-package-as-a-library/47651)

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**Author:** [@svan](https://discourse.processing.org/u/svan)\
**Replies:** 2\
**Last updated:** [December 21, 2025, 9:00pm UTC](https://discourse.processing.org/t/unable-to-install-java-package-as-a-library/47651 "2025-12-21T21:00:53Z")

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There is a java package called ‘com.dd.plist’ that I would like to install as a library in Processing 4.4.10 (https://github.com/3breadt/dd-plist). It contains 28 individual files and has no available .jar file. The on…

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## [I need help understanding how to update my 2008 Processing code to modern standards](https://discourse.processing.org/t/i-need-help-understanding-how-to-update-my-2008-processing-code-to-modern-standards/47649)

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**Author:** [@Telos](https://discourse.processing.org/u/Telos)\
**Replies:** 3\
**Last updated:** [December 21, 2025, 11:35am UTC](https://discourse.processing.org/t/i-need-help-understanding-how-to-update-my-2008-processing-code-to-modern-standards/47649 "2025-12-21T11:35:28Z")

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Here i got the code of a program i’ve compiled in 2008 for a art project. because of changes in programming en technics, its out of date and doesn’t function any more. I’m going to try and explain what i’ve tried so far,…

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## [The get() function returns the wrong image size](https://discourse.processing.org/t/the-get-function-returns-the-wrong-image-size/47627)

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**Author:** [@shedMusic](https://discourse.processing.org/u/shedMusic)\
**Replies:** 8\
**Last updated:** [December 17, 2025, 7:40pm UTC](https://discourse.processing.org/t/the-get-function-returns-the-wrong-image-size/47627 "2025-12-17T19:40:11Z")

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When using get() to grab the screen, the image grabbed is always half the dimensions of the dimensions requested. Here the image being loaded is 512x512 to fit the canvas but after grabbing using new logo = get(0, 0, 51…

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## [Processing Serial library alternatives?](https://discourse.processing.org/t/processing-serial-library-alternatives/47609)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 4\
**Last updated:** [December 16, 2025, 11:53pm UTC](https://discourse.processing.org/t/processing-serial-library-alternatives/47609 "2025-12-16T23:53:52Z")

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Hello, The Processing Serial library has served me very well over the years! I am looking for alternatives to the Processing Serial library for some of my more advanced projects. What are your experiences with other J…

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## [A Cross-Platform Approach to Coding](https://discourse.processing.org/t/a-cross-platform-approach-to-coding/47614)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 0\
**Last updated:** [December 13, 2025, 4:41pm UTC](https://discourse.processing.org/t/a-cross-platform-approach-to-coding/47614 "2025-12-13T16:41:54Z")

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Hello folks! Operating systems have some differences that can sometimes be anticipated and handled in code. This OS-dependent example works for Windows 10 but not for macOS or Linux: String classPaths = System.getProp…

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## [Processing not finding Arduino Uno](https://discourse.processing.org/t/processing-not-finding-arduino-uno/47602)

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**Author:** [@SWijnen](https://discourse.processing.org/u/SWijnen)\
**Replies:** 4\
**Last updated:** [December 10, 2025, 2:14pm UTC](https://discourse.processing.org/t/processing-not-finding-arduino-uno/47602 "2025-12-10T14:14:22Z")

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Hey everyone, I’m working on a project for school, and for some reason, my environment is messing up. The deadline is upcoming Friday, so I’m still researching some solutions while also making this post. Thanks for your…

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## [Processing + OSC + Arduino: Application Freezes When Controlling Fan](https://discourse.processing.org/t/processing-osc-arduino-application-freezes-when-controlling-fan/47568)

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**Author:** [@brightscape](https://discourse.processing.org/u/brightscape)\
**Replies:** 7\
**Last updated:** [December 9, 2025, 7:58pm UTC](https://discourse.processing.org/t/processing-osc-arduino-application-freezes-when-controlling-fan/47568 "2025-12-09T19:58:38Z")

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Hi There, I was wondering if anyone could help me. I am trying to drive a fan/motor using an OSC command. It’s running well through via an arduino to a potentiometer controller on the fan. I have used OSC as the button p…

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## ["Trouble without a name" message box starting Processing 4.4.10](https://discourse.processing.org/t/trouble-without-a-name-message-box-starting-processing-4-4-10/47598)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 2\
**Last updated:** [December 8, 2025, 1:11pm UTC](https://discourse.processing.org/t/trouble-without-a-name-message-box-starting-processing-4-4-10/47598 "2025-12-08T13:11:24Z")

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Hello, I got this message for the first time starting Processing 4.4.10: Any idea why? It started up normally after message box appeared. :)

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## [How to export single frame from animation as SVG](https://discourse.processing.org/t/how-to-export-single-frame-from-animation-as-svg/47594)

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**Author:** [@Lutoslawski.xyz](https://discourse.processing.org/u/Lutoslawski.xyz)\
**Replies:** 8\
**Last updated:** [December 6, 2025, 8:46pm UTC](https://discourse.processing.org/t/how-to-export-single-frame-from-animation-as-svg/47594 "2025-12-06T20:46:53Z")

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Hi guys! What am I missing…. ? I would like to export either a single frame from animation or the result image after few steps, e.g. when I draw circles using the mouseX. Here is the very basic code: import processin…

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## [Transformation d'ECG en image ou son](https://discourse.processing.org/t/transformation-decg-en-image-ou-son/47590)

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**Author:** [@Clem](https://discourse.processing.org/u/Clem)\
**Replies:** 3\
**Last updated:** [December 5, 2025, 10:59am UTC](https://discourse.processing.org/t/transformation-decg-en-image-ou-son/47590 "2025-12-05T10:59:04Z")

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Est-il possible de créer une images / animation , a parti de données d’ECG (electrocardioramme) grâce au code ? (j’ai un projet artistique dessus je ne sais pas faire de code j’ai besoin d’aide )

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## [Processing Exception](https://discourse.processing.org/t/processing-exception/47566)

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**Author:** [@Frank](https://discourse.processing.org/u/Frank)\
**Replies:** 3\
**Last updated:** [December 4, 2025, 3:44am UTC](https://discourse.processing.org/t/processing-exception/47566 "2025-12-04T03:44:32Z")

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Hello. I want to start an external program in Processing and Processing should detect whether this program has also been started. How can I realize this? I’m not familiar with these exceptions. Thanks…Frank

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## [Processing and JavaFX](https://discourse.processing.org/t/processing-and-javafx/45692)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 18\
**Last updated:** [November 26, 2025, 11:26pm UTC](https://discourse.processing.org/t/processing-and-javafx/45692 "2025-11-26T23:26:21Z")

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Hello, There are many posts in the forum using JavaFX with Processing. JavaFX code works with certain configurations but not with others. These configurations may include: Version of Processing Operating system and …

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## [Multithreading in Processing](https://discourse.processing.org/t/multithreading-in-processing/47561)

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**Author:** [@Braunstein](https://discourse.processing.org/u/Braunstein)\
**Replies:** 4\
**Last updated:** [November 26, 2025, 10:47am UTC](https://discourse.processing.org/t/multithreading-in-processing/47561 "2025-11-26T10:47:47Z")

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Hello, I am working on a Processing-based editor for Conway’s Game of Life, basically like a Golly-lite with a few basic features like pattern loading, grid editing, speed up/down, etc.. Full disclosure, I have used Cha…

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## [Amp in Sound library not working](https://discourse.processing.org/t/amp-in-sound-library-not-working/47528)

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**Author:** [@todocono](https://discourse.processing.org/u/todocono)\
**Replies:** 6\
**Last updated:** [November 18, 2025, 10:13am UTC](https://discourse.processing.org/t/amp-in-sound-library-not-working/47528 "2025-11-18T10:13:07Z")

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/\*\* This is a simple sound file player. Use the mouse position to control playback speed, amplitude and stereo panning. \*/ // Map mouseY from 0.2 to 1.0 for amplitude float amplitude = map(mouseY, 0, width, 0.2, 1.0…

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## [Processing 4 processing-java binary?](https://discourse.processing.org/t/processing-4-processing-java-binary/47498)

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**Author:** [@SNitaine](https://discourse.processing.org/u/SNitaine)\
**Replies:** 12\
**Last updated:** [November 15, 2025, 2:00pm UTC](https://discourse.processing.org/t/processing-4-processing-java-binary/47498 "2025-11-15T14:00:40Z")

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I’m looking for a way to use Processing 4 without relying on the PDE. Specifically, I’d like to know if a processing-java binary is distributed through any package manager (e.g., Homebrew, apt, pacman, etc.). I haven’t f…

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## [Mouseclicked question](https://discourse.processing.org/t/mouseclicked-question/47536)

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**Author:** [@darfurspacengine](https://discourse.processing.org/u/darfurspacengine)\
**Replies:** 3\
**Last updated:** [November 13, 2025, 4:36pm UTC](https://discourse.processing.org/t/mouseclicked-question/47536 "2025-11-13T16:36:20Z")

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Is there a way to have the draw function, in that it runs 60 times a second, happen after mouseclick?

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## [Renderers (and Windows scaling)](https://discourse.processing.org/t/renderers-and-windows-scaling/47524)

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**Author:** [@sterretje](https://discourse.processing.org/u/sterretje)\
**Replies:** 5\
**Last updated:** [November 12, 2025, 4:39am UTC](https://discourse.processing.org/t/renderers-and-windows-scaling/47524 "2025-11-12T04:39:47Z")

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There is a difference between \`Processing 4.3 and 4.4.7 (and 4.4.10) in how the default renderer handles Windows scaling. In Processing 4.3 a sketch with a size(200, 200) the canvas indeed 200x200 pixels; in Processing …

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