# Latest

**URL:** https://discourse.processing.org/latest.md?no_subcategories=false&page=2

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

**Page:** 3

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## [PCD @ San Francisco 2026](https://discourse.processing.org/t/pcd-san-francisco-2026/48820)

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**Author:** [@kjhollen](https://discourse.processing.org/u/kjhollen)\
**Replies:** 2\
**Last updated:** [September 22, 2026, 9:23pm UTC](https://discourse.processing.org/t/pcd-san-francisco-2026/48820 "2026-09-22T21:23:33Z")

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Hi! I’m co-organizing a Processing Community Day 2026 event in San Francisco. This PCD will be co-hosted by Gray Area and tiat on October 3, 2026 at 2665 Mission St, San Francisco, CA 94110. We’ll have some workshops by…

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## [4.5.6 Python Mode Error](https://discourse.processing.org/t/4-5-6-python-mode-error/49409)

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**Author:** [@Kiyoshimon](https://discourse.processing.org/u/Kiyoshimon)\
**Replies:** 5\
**Last updated:** [September 22, 2026, 6:16pm UTC](https://discourse.processing.org/t/4-5-6-python-mode-error/49409 "2026-09-22T18:16:19Z")

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Hi all, I’ve had issues using Python mode since the most recent update. Version 3 does not link to the server anymore to to fetch Python mode, and Version 4.5.6 yields this error upon swapping to Python Mode for 4 (imag…

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## [Chooser.files.native still broken](https://discourse.processing.org/t/chooser-files-native-still-broken/49403)

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**Author:** [@PerryJohnson](https://discourse.processing.org/u/PerryJohnson)\
**Replies:** 2\
**Last updated:** [September 21, 2026, 12:24pm UTC](https://discourse.processing.org/t/chooser-files-native-still-broken/49403 "2026-09-21T12:24:12Z")

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I’m still seeing a broken file chooser on the latest Processing versions up through the latest RC. I’m on Linux (Fedora, KDE, Wayland). Yes, there is the preferences workaround below, but I was hoping for a proper fix. …

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## [Backspace not detecting](https://discourse.processing.org/t/backspace-not-detecting/49405)

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**Author:** [@IrohaSakayori168](https://discourse.processing.org/u/IrohaSakayori168)\
**Replies:** 1\
**Last updated:** [September 21, 2026, 7:31am UTC](https://discourse.processing.org/t/backspace-not-detecting/49405 "2026-09-21T07:31:22Z")

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public void keyPressed(){ if(key == CODED){ if(keyCode == LEFT){val--;} if(keyCode == RIGHT){val++;} if(keyCode == BACKSPACE) {System.out.println("Backspace Pressed");editManag…

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## [Question about a simple code using lines and rectangles](https://discourse.processing.org/t/question-about-a-simple-code-using-lines-and-rectangles/49402)

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**Author:** [@JamesP](https://discourse.processing.org/u/JamesP)\
**Replies:** 6\
**Last updated:** [September 20, 2026, 7:19pm UTC](https://discourse.processing.org/t/question-about-a-simple-code-using-lines-and-rectangles/49402 "2026-09-20T19:19:18Z")

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Why is it that I have to use (100,40,400,210) to make the rectangle the same size as the lines? I would have thought I could use (100,40,500,250). It doesn’t make sense to me that 400, 210 is at the same spot as where my…

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## [P5js - inconsistent shader behaviour leading to program crashes](https://discourse.processing.org/t/p5js-inconsistent-shader-behaviour-leading-to-program-crashes/49386)

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**Author:** [@quark](https://discourse.processing.org/u/quark)\
**Replies:** 6\
**Last updated:** [September 20, 2026, 10:33am UTC](https://discourse.processing.org/t/p5js-inconsistent-shader-behaviour-leading-to-program-crashes/49386 "2026-09-20T10:33:04Z")

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Version 3 of canvasGUI (released April 2026) uses a shader to display the GUI over a webgl2 context within a p5.js sketch. This was successful and an example was created to demonstrate it. This example can be found here …

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## [How would you change this sketch?](https://discourse.processing.org/t/how-would-you-change-this-sketch/47805)

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**Author:** [@NickyDeep](https://discourse.processing.org/u/NickyDeep)\
**Replies:** 3\
**Last updated:** [September 19, 2026, 7:18pm UTC](https://discourse.processing.org/t/how-would-you-change-this-sketch/47805 "2026-09-19T19:18:44Z")

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https://openprocessing.org/sketch/2857202 how would you change this sketch so that it got more interesting or funny or contrasted what would you do to it?

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## [Installing Processing 4.5.6 for Windows - reading licences](https://discourse.processing.org/t/installing-processing-4-5-6-for-windows-reading-licences/49231)

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**Author:** [@jsampson45](https://discourse.processing.org/u/jsampson45)\
**Replies:** 1\
**Last updated:** [September 18, 2026, 3:57pm UTC](https://discourse.processing.org/t/installing-processing-4-5-6-for-windows-reading-licences/49231 "2026-09-18T15:57:55Z")

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I see that there are nine licences to read in installng Processing for Windows. Is there an estimate how long it takes to read them?

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## [APDE WIFI sketch](https://discourse.processing.org/t/apde-wifi-sketch/49384)

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**Author:** [@MPROCD](https://discourse.processing.org/u/MPROCD)\
**Replies:** 0\
**Last updated:** [September 17, 2026, 6:32am UTC](https://discourse.processing.org/t/apde-wifi-sketch/49384 "2026-09-17T06:32:52Z")

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Hello I am writing a program using APDE as development environment. The sketch fails to run, and it seems that the compiler rejects the WIFI code such as udp.send() and receive (). Can anybody provide a WIFI code exam…

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## [Screen resolution hdpi confusion](https://discourse.processing.org/t/screen-resolution-hdpi-confusion/30320)

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**Author:** [@fish233](https://discourse.processing.org/u/fish233)\
**Replies:** 10\
**Last updated:** [September 15, 2026, 2:35pm UTC](https://discourse.processing.org/t/screen-resolution-hdpi-confusion/30320 "2026-09-15T14:35:43Z")

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Hello, semi noob here. I recently switched from a win10 1920x1080 laptop to an m1 MacBook. I made a lot of sketches with size(1080,1080) last year. these displayed nice on the hd screen, but with the MacBook apparently b…

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## [I made an Android p5.js editor — Edit:RiN](https://discourse.processing.org/t/i-made-an-android-p5-js-editor-edit-rin/49366)

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**Author:** [@rin-code](https://discourse.processing.org/u/rin-code)\
**Replies:** 0\
**Last updated:** [September 14, 2026, 10:53am UTC](https://discourse.processing.org/t/i-made-an-android-p5-js-editor-edit-rin/49366 "2026-09-14T10:53:40Z")

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Hi everyone! I’m currently developing Edit:RiN, a free and open-source p5.js editor for Android. I wanted a simple way to write p5.js sketches directly on my phone, preview them immediately, and keep creating wherever …

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## [PCD @ The Hague 2026](https://discourse.processing.org/t/pcd-the-hague-2026/48233)

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**Author:** [@voorbeeld](https://discourse.processing.org/u/voorbeeld)\
**Replies:** 3\
**Last updated:** [September 14, 2026, 9:08am UTC](https://discourse.processing.org/t/pcd-the-hague-2026/48233 "2026-09-14T09:08:37Z")

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Processing Community Day in The Hague We have a space (the studio of RNDR), looking for help in programming and organizing the event.

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## [Problems with a shader overlaying a webgl2 canvas with a 2D image](https://discourse.processing.org/t/problems-with-a-shader-overlaying-a-webgl2-canvas-with-a-2d-image/49342)

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**Author:** [@quark](https://discourse.processing.org/u/quark)\
**Replies:** 0\
**Last updated:** [September 11, 2026, 2:15pm UTC](https://discourse.processing.org/t/problems-with-a-shader-overlaying-a-webgl2-canvas-with-a-2d-image/49342 "2026-09-11T14:15:25Z")

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EDIT: although the information in this discussion is accurate relevant it was based on the assumption there was a problem with the shader program used by canvasGUI. Since then I have carried out test that indicate the p…

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## [Accessing width and height variables much slower in P5 Ver 2.0 compared to Ver 1.0](https://discourse.processing.org/t/accessing-width-and-height-variables-much-slower-in-p5-ver-2-0-compared-to-ver-1-0/49325)

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**Author:** [@ozjerry](https://discourse.processing.org/u/ozjerry)\
**Replies:** 21\
**Last updated:** [September 11, 2026, 12:14pm UTC](https://discourse.processing.org/t/accessing-width-and-height-variables-much-slower-in-p5-ver-2-0-compared-to-ver-1-0/49325 "2026-09-11T12:14:03Z")

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Problem: There seems to be a big discrepancy in performance I recently came back to P5 after not having used it for a few years. I’m just coding. I grabbed the latest version (2.3.2) and wrote a quick game of life prog…

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## [K-means clustering](https://discourse.processing.org/t/k-means-clustering/49313)

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**Author:** [@quark](https://discourse.processing.org/u/quark)\
**Replies:** 2\
**Last updated:** [September 10, 2026, 3:19pm UTC](https://discourse.processing.org/t/k-means-clustering/49313 "2026-09-10T15:19:58Z")

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While browing videos on youtube I came across this video on K-means clustering. Once you get past the channel’s awful intro music :hear\_no\_evil\_monkey: it was worth watching especially if you hadn’t heard of clustering b…

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## [Processing Sketch Browser](https://discourse.processing.org/t/processing-sketch-browser/48452)

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**Author:** [@adaptinnovative](https://discourse.processing.org/u/adaptinnovative)\
**Replies:** 23\
**Last updated:** [September 9, 2026, 10:15pm UTC](https://discourse.processing.org/t/processing-sketch-browser/48452 "2026-09-09T22:15:04Z")

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processsing sketch browser Video Video https://youtu.be/3UPGjDTa050

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## [PCD @ Montreal 2026](https://discourse.processing.org/t/pcd-montreal-2026/48506)

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**Author:** [@benoit](https://discourse.processing.org/u/benoit)\
**Replies:** 5\
**Last updated:** [September 8, 2026, 1:20pm UTC](https://discourse.processing.org/t/pcd-montreal-2026/48506 "2026-09-08T13:20:18Z")

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Hi! I’m organizing a Processing Community Day 2026 event in Montreal, Canada. It will probably be on the Université de Montréal campus I’ll update this thread with more details as planning progresses.

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## [Size limit of 250 MB issue](https://discourse.processing.org/t/size-limit-of-250-mb-issue/38173)

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**Author:** [@gjs](https://discourse.processing.org/u/gjs)\
**Replies:** 7\
**Last updated:** [September 8, 2026, 11:22am UTC](https://discourse.processing.org/t/size-limit-of-250-mb-issue/38173 "2026-09-08T11:22:42Z")

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I tried to upload a font to my asset folder but received the response: “Error: You cannot upload any more files. You have reached the total size limit of 250 MB. If you would like to upload more, please remove the ones …

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## [New L5lua extension for VS Codium / VS Code out now! - get started with L5](https://discourse.processing.org/t/new-l5lua-extension-for-vs-codium-vs-code-out-now-get-started-with-l5/49251)

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**Author:** [@lee](https://discourse.processing.org/u/lee)\
**Replies:** 4\
**Last updated:** [September 6, 2026, 4:42pm UTC](https://discourse.processing.org/t/new-l5lua-extension-for-vs-codium-vs-code-out-now-get-started-with-l5/49251 "2026-09-06T16:42:37Z")

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This summer as part of their GSoC project, Sam Heckle built the L5lua extension for Visual Studio Code and VS Codium (open source non-telemetry alternative) to make it easy to get started using the L5 creative coding lib…

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## [AI wrote it with prompting for Processing code](https://discourse.processing.org/t/ai-wrote-it-with-prompting-for-processing-code/49315)

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**Author:** [@HackinHarry](https://discourse.processing.org/u/HackinHarry)\
**Replies:** 0\
**Last updated:** [September 5, 2026, 3:54am UTC](https://discourse.processing.org/t/ai-wrote-it-with-prompting-for-processing-code/49315 "2026-09-05T03:54:04Z")

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I was building a circuit that used some 4051N multiplexers and a 74HCT595N shift register to scan a sensor array I made from Velostat. The idea was to send the data through serial and display it as a pressure map. My s…

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## [Processing for College Boards AP CS A (AP Java)](https://discourse.processing.org/t/processing-for-college-boards-ap-cs-a-ap-java/49151)

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**Author:** [@saberkhan](https://discourse.processing.org/u/saberkhan)\
**Replies:** 1\
**Last updated:** [September 3, 2026, 8:53pm UTC](https://discourse.processing.org/t/processing-for-college-boards-ap-cs-a-ap-java/49151 "2026-09-03T20:53:06Z")

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hey processing gang, I am going to be offering a free virtual workshop series on using Processing for the College Board’s Advanced Placement Computer Science A course and test this fall. If you are interested or know so…

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## [Automatically Close on Exit](https://discourse.processing.org/t/automatically-close-on-exit/49309)

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**Author:** [@IrohaSakayori168](https://discourse.processing.org/u/IrohaSakayori168)\
**Replies:** 5\
**Last updated:** [September 3, 2026, 8:22pm UTC](https://discourse.processing.org/t/automatically-close-on-exit/49309 "2026-09-03T20:22:29Z")

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How to close the program on exit? I end up with a dozen windows because I tend to forget to close the window.

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## [Shapes3d: Box Object: missing command setSize](https://discourse.processing.org/t/shapes3d-box-object-missing-command-setsize/49300)

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**Author:** [@Chrisir](https://discourse.processing.org/u/Chrisir)\
**Replies:** 1\
**Last updated:** [September 1, 2026, 10:41pm UTC](https://discourse.processing.org/t/shapes3d-box-object-missing-command-setsize/49300 "2026-09-01T22:41:16Z")

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Dear all, sorry, when this has been asked before. Please jump to my Edit parts below. Box Object: In an OLD shapes3d lib by @quark : Box Object: missing command setSize(). // OLD Help for setSize(float width, flo…

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## [PCD @ Liège, Belgium 2026](https://discourse.processing.org/t/pcd-liege-belgium-2026/48891)

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**Author:** [@greberger](https://discourse.processing.org/u/greberger)\
**Replies:** 3\
**Last updated:** [September 1, 2026, 10:14am UTC](https://discourse.processing.org/t/pcd-liege-belgium-2026/48891 "2026-09-01T10:14:18Z")

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Hi there :waving\_hand: I’m Greg from Liège, Belgium. I’m a founding member of Overflow Gallery, an artist-run space focused on research, exploration and exhibition of media/digital arts. We’ll throw a pen plotter part…

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## [Display count needs to be implemented for non-AWT](https://discourse.processing.org/t/display-count-needs-to-be-implemented-for-non-awt/49232)

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**Author:** [@AlexRussell](https://discourse.processing.org/u/AlexRussell)\
**Replies:** 5\
**Last updated:** [August 31, 2026, 4:18pm UTC](https://discourse.processing.org/t/display-count-needs-to-be-implemented-for-non-awt/49232 "2026-08-31T16:18:33Z")

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Since I updated to Processing 4.5.6 (on Win 11), every sketch runs okay, but gets the error message: “display count needs to be implemented for non-AWT AWT disabled, displayWidth/displayHeight will be 0” Nothing here:…

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## [SimpleUI free for all](https://discourse.processing.org/t/simpleui-free-for-all/49244)

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**Author:** [@erkosone](https://discourse.processing.org/u/erkosone)\
**Replies:** 5\
**Last updated:** [August 31, 2026, 3:52pm UTC](https://discourse.processing.org/t/simpleui-free-for-all/49244 "2026-08-31T15:52:13Z")

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Llevo desarrollando esta librería para consumo propio desde el año 2013 y he decidido publicarla formalmente para la comunidad, se trata de una librería de interfaz de usuario y sobre todo esta pensada para crear videoju…

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## [Could not connect to the Processing server to install libraries](https://discourse.processing.org/t/could-not-connect-to-the-processing-server-to-install-libraries/44126)

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**Author:** [@ppiyo](https://discourse.processing.org/u/ppiyo)\
**Replies:** 9\
**Last updated:** [August 31, 2026, 12:07pm UTC](https://discourse.processing.org/t/could-not-connect-to-the-processing-server-to-install-libraries/44126 "2026-08-31T12:07:38Z")

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May I know how to solve this issue? I am using Processing 3.5.4.

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## [Sketchbook Moved But Processing Picksup An Old Version](https://discourse.processing.org/t/sketchbook-moved-but-processing-picksup-an-old-version/49257)

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**Author:** [@fredstout](https://discourse.processing.org/u/fredstout)\
**Replies:** 2\
**Last updated:** [August 28, 2026, 9:22pm UTC](https://discourse.processing.org/t/sketchbook-moved-but-processing-picksup-an-old-version/49257 "2026-08-28T21:22:17Z")

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I am moving out of One-Drive and I have moved my processing files including the sketchbook to a new location. When I start processing, I set the new sketchbook path into the preferences position. Processing keeps trying…

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## [C++ Mode, a plugin that lets you write Processing sketches in C++](https://discourse.processing.org/t/c-mode-a-plugin-that-lets-you-write-processing-sketches-in-c/49142)

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**Author:** [@pepc](https://discourse.processing.org/u/pepc)\
**Replies:** 16\
**Last updated:** [August 28, 2026, 2:09pm UTC](https://discourse.processing.org/t/c-mode-a-plugin-that-lets-you-write-processing-sketches-in-c/49142 "2026-08-28T14:09:24Z")

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Hey all, I’ve been building a plugin for the Processing 4 IDE called C++ Mode. It lets you write sketches in C++, using the same API you’re used to. setup(), draw(), background(), mouseX, fill(), all still there. C++ i…

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## [Processing2Hologram — a Processing 4 library for Looking Glass holographic displays](https://discourse.processing.org/t/processing2hologram-a-processing-4-library-for-looking-glass-holographic-displays/49169)

<div class="topic-metadata">

**Author:** [@ChengkaiXu](https://discourse.processing.org/u/ChengkaiXu)\
**Replies:** 11\
**Last updated:** [August 27, 2026, 2:17am UTC](https://discourse.processing.org/t/processing2hologram-a-processing-4-library-for-looking-glass-holographic-displays/49169 "2026-08-27T02:17:06Z")

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Processing2Hologram — a Processing 4 library for Looking Glass holographic displays Hi everyone! I’d like to share a small open-source project I’ve been working on: Processing2Hologram, a Processing 4 library that lets…

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