# Latest

**URL:** https://discourse.processing.org/latest.md?page=1

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

**Page:** 2

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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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## [P5.waves - waveforms for motion, patterns and morphing](https://discourse.processing.org/t/p5-waves-waveforms-for-motion-patterns-and-morphing/49335)

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**Author:** [@sebastienvanblaere](https://discourse.processing.org/u/sebastienvanblaere)\
**Replies:** 1\
**Last updated:** [September 10, 2026, 12:05pm UTC](https://discourse.processing.org/t/p5-waves-waveforms-for-motion-patterns-and-morphing/49335 "2026-09-10T12:05:14Z")

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Hi everyone, I’d like to share p5.waves, a small library I’ve been developing for using waveforms to drive motion, shapes and patterns in p5.js. It started with a 16×16 black-and-white grid and a set of wave formulas c…

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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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## [PCD Digital Meetup @ V&A 2026](https://discourse.processing.org/t/pcd-digital-meetup-v-a-2026/49322)

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**Author:** [@marcb](https://discourse.processing.org/u/marcb)\
**Replies:** 3\
**Last updated:** [September 6, 2026, 5:15pm UTC](https://discourse.processing.org/t/pcd-digital-meetup-v-a-2026/49322 "2026-09-06T17:15:32Z")

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Hi everyone, I’m an the organiser of creative coding and open hardware meetups in London. We’re celebrating Processing Community Day by organising a special event on 23rd October at the V&A. It’s free, drop in and we’re …

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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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## [PCD @ Mexico 2026](https://discourse.processing.org/t/pcd-mexico-2026/48924)

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**Author:** [@JuanFuent.es](https://discourse.processing.org/u/JuanFuent.es)\
**Replies:** 5\
**Last updated:** [September 4, 2026, 6:18pm UTC](https://discourse.processing.org/t/pcd-mexico-2026/48924 "2026-09-04T18:18:38Z")

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Hi! I’m organizing a Processing Community Day 2026 event in \[CDMX, México\]. I’m Juan Fuentes, a Web Craft Developer, educator and lettering/code researcher based in Mexico City. I’m interested in organizing PCD @ Mexic…

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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)

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**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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## [PCD @ Atlanta 2026](https://discourse.processing.org/t/pcd-atlanta-2026/48231)

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**Author:** [@freaug](https://discourse.processing.org/u/freaug)\
**Replies:** 8\
**Last updated:** [August 26, 2026, 4:48pm UTC](https://discourse.processing.org/t/pcd-atlanta-2026/48231 "2026-08-26T16:48:30Z")

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Heyo Atlanta! Anyone interested in collaborating on hosting a PCD event this October??

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## [Android Mode Compiler, problem not solved yet](https://discourse.processing.org/t/android-mode-compiler-problem-not-solved-yet/48739)

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**Author:** [@MPROCD](https://discourse.processing.org/u/MPROCD)\
**Replies:** 6\
**Last updated:** [August 24, 2026, 6:01pm UTC](https://discourse.processing.org/t/android-mode-compiler-problem-not-solved-yet/48739 "2026-08-24T18:01:04Z")

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A few months ago, I published a post about the problems encountered while trying to build a working version of Android Mode for Processing. After I upgraded to Processing 4.x.x and after I updated my smartphone Android…

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## [PCD @ New York City 2026](https://discourse.processing.org/t/pcd-new-york-city-2026/48393)

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**Author:** [@book.of.iris](https://discourse.processing.org/u/book.of.iris)\
**Replies:** 27\
**Last updated:** [August 24, 2026, 3:03pm UTC](https://discourse.processing.org/t/pcd-new-york-city-2026/48393 "2026-08-24T15:03:02Z")

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Hi! I’m wanting to help organize a Processing Community Day 2026 event in New York City, NY, USA. I’m a creative coach and programmer based in Brooklyn. A Recurse Center and SFPC alumn, I’m enrolled in next year’s IMA/L…

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## [Do you use UML?](https://discourse.processing.org/t/do-you-use-uml/48062)

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**Author:** [@EricRogerGarcia](https://discourse.processing.org/u/EricRogerGarcia)\
**Replies:** 4\
**Last updated:** [August 23, 2026, 8:05am UTC](https://discourse.processing.org/t/do-you-use-uml/48062 "2026-08-23T08:05:50Z")

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I use class diagrams for a long time to think and make planification and now I use Activity diagrams to help me refactoring in my code which beginning to be complex (for the GUI system). I find them very useful ! P.S. …

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## [Serial ports disappear after years of working reliably](https://discourse.processing.org/t/serial-ports-disappear-after-years-of-working-reliably/49236)

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**Author:** [@Craig](https://discourse.processing.org/u/Craig)\
**Replies:** 2\
**Last updated:** [August 22, 2026, 5:40pm UTC](https://discourse.processing.org/t/serial-ports-disappear-after-years-of-working-reliably/49236 "2026-08-22T17:40:25Z")

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I have several projects that have been using the Serial library reliably for years. Recently, on all of my computers (using Macintoshes) the /dev/cu.usbserial-XXXX port has disappeared. The Bluetooth ports are still ther…

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## [I need help plz thanks if you do im a beginner sorry](https://discourse.processing.org/t/i-need-help-plz-thanks-if-you-do-im-a-beginner-sorry/49230)

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**Author:** [@chuudtaco](https://discourse.processing.org/u/chuudtaco)\
**Replies:** 2\
**Last updated:** [August 21, 2026, 5:41am UTC](https://discourse.processing.org/t/i-need-help-plz-thanks-if-you-do-im-a-beginner-sorry/49230 "2026-08-21T05:41:25Z")

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hi I don’t know why my keyPressed isn’t working, I copied and pasted references and they don’t work either, i’m not sure if it’s a me problem. https://editor.p5js.org/chuud/sketches/FtKfFDUL5 sorry if i used wrong form…

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## [Truncated Cube P3D](https://discourse.processing.org/t/truncated-cube-p3d/49216)

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**Author:** [@svan](https://discourse.processing.org/u/svan)\
**Replies:** 0\
**Last updated:** [August 19, 2026, 8:36pm UTC](https://discourse.processing.org/t/truncated-cube-p3d/49216 "2026-08-19T20:36:42Z")

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The following source code will create a truncated cube with the P3D renderer using beginShape()…endShape() with multiple vertices. Since it is difficult to add components to a GLWindow a separate JFrame controller windo…

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## [Enable touch actions on mobile over the p5js canvas itself](https://discourse.processing.org/t/enable-touch-actions-on-mobile-over-the-p5js-canvas-itself/49199)

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**Author:** [@dandan](https://discourse.processing.org/u/dandan)\
**Replies:** 2\
**Last updated:** [August 18, 2026, 7:13pm UTC](https://discourse.processing.org/t/enable-touch-actions-on-mobile-over-the-p5js-canvas-itself/49199 "2026-08-18T19:13:06Z")

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Hello! I have an issue both on ios and android where all touch actions like scrolling, zooming, moving around while zoomed in, seem to be disabled when doing them over the canvas. They work fine on the outside edges. I’…

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## [PCD @ Detroit 2026](https://discourse.processing.org/t/pcd-detroit-2026/49200)

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**Author:** [@westiv](https://discourse.processing.org/u/westiv)\
**Replies:** 0\
**Last updated:** [August 18, 2026, 5:27pm UTC](https://discourse.processing.org/t/pcd-detroit-2026/49200 "2026-08-18T17:27:14Z")

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Hi! I’m organizing a Processing Community Day 2026 event in Detroit, MI. I’ll update this thread with more details as planning progresses.

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