# Latest

**URL:** https://discourse.processing.org/latest.md?page=8

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

**Page:** 9

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## [PCD @ Coimbra 2026](https://discourse.processing.org/t/pcd-coimbra-2026/48396)

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**Author:** [@jmacunha](https://discourse.processing.org/u/jmacunha)\
**Replies:** 2\
**Last updated:** [April 9, 2026, 3:43pm UTC](https://discourse.processing.org/t/pcd-coimbra-2026/48396 "2026-04-09T15:43:10Z")

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Hi, I am João and I am part of the team that organizes PCD@ Coimbra (Portugal), which had its 4th edition this year Our event took place in March and we now have an ongoing exhibition with the works that were accepted t…

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## [PCD @ Boston/Cambridge 2026](https://discourse.processing.org/t/pcd-boston-cambridge-2026/48418)

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**Author:** [@yufengz](https://discourse.processing.org/u/yufengz)\
**Replies:** 1\
**Last updated:** [April 9, 2026, 8:50am UTC](https://discourse.processing.org/t/pcd-boston-cambridge-2026/48418 "2026-04-09T08:50:49Z")

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Hi! I’m Yufeng Zhao, a master’s student in the Future Sketches group at MIT Media Lab. We’re planning to host a PCD here in Cambridge, MA. Venue: MIT Media Lab (tentative) Date: Late October 2026 (TBD) Format: Talks…

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## [Could not run the sketch. (ERROR: transport error 202: bind failed:)](https://discourse.processing.org/t/could-not-run-the-sketch-error-transport-error-202-bind-failed/47420)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 5\
**Last updated:** [April 8, 2026, 8:48pm UTC](https://discourse.processing.org/t/could-not-run-the-sketch-error-transport-error-202-bind-failed/47420 "2026-04-08T20:48:59Z")

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Hello folks! I occasionally encounter the following error when running sketches: Could not run the sketch: ERROR: transport error 202: bind failed: Permission denied Text copied from console (in blue in con…

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## [PCD @ Shanghai 2026](https://discourse.processing.org/t/pcd-shanghai-2026/48212)

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**Author:** [@avantcontra](https://discourse.processing.org/u/avantcontra)\
**Replies:** 6\
**Last updated:** [April 8, 2026, 12:45pm UTC](https://discourse.processing.org/t/pcd-shanghai-2026/48212 "2026-04-08T12:45:05Z")

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Hi there! A discussion thread here. We hope to organize this year’s PCD event in Shanghai or Suzhou, maybe other cities like Beijing. We can host a series of workshops, forums, exhibitions, and other events. Welcome t…

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## [Processing with Android, problems with Android compiling](https://discourse.processing.org/t/processing-with-android-problems-with-android-compiling/48290)

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**Author:** [@MPROCD](https://discourse.processing.org/u/MPROCD)\
**Replies:** 5\
**Last updated:** [April 7, 2026, 8:09pm UTC](https://discourse.processing.org/t/processing-with-android-problems-with-android-compiling/48290 "2026-04-07T20:09:41Z")

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I found no clear documentation for building a version of Processing (versions 4.xx) which works with Android correctly. It seems that different Processing versions need different Android mode versions and different SDK f…

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## [How to get hits for Processing on search engine](https://discourse.processing.org/t/how-to-get-hits-for-processing-on-search-engine/48400)

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**Author:** [@jsampson45](https://discourse.processing.org/u/jsampson45)\
**Replies:** 2\
**Last updated:** [April 7, 2026, 2:16am UTC](https://discourse.processing.org/t/how-to-get-hits-for-processing-on-search-engine/48400 "2026-04-07T02:16:36Z")

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Hello? If I need to look something up on Google about Processing what is the best search term for getting relevant hits? “Processing” itself won’t do as it is too general.

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## [Straight Skeleton - or how to draw a center line in a polygon or shape?](https://discourse.processing.org/t/straight-skeleton-or-how-to-draw-a-center-line-in-a-polygon-or-shape/17208)

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**Author:** [@Maxs](https://discourse.processing.org/u/Maxs)\
**Replies:** 24\
**Last updated:** [April 6, 2026, 8:11pm UTC](https://discourse.processing.org/t/straight-skeleton-or-how-to-draw-a-center-line-in-a-polygon-or-shape/17208 "2026-04-06T20:11:27Z")

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Hello, for a project I want to draw a “center line” into a shape/polygon. The picture below shows the letter “H” outlined (this is the data I have) and then the center line in red (this is the data I am looking for). I …

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## [Can there exist multiple pairs of beginDraw() and endDraw() invoked on the same PGraphics in the same frame?](https://discourse.processing.org/t/can-there-exist-multiple-pairs-of-begindraw-and-enddraw-invoked-on-the-same-pgraphics-in-the-same-frame/48408)

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**Author:** [@A-Bomb](https://discourse.processing.org/u/A-Bomb)\
**Replies:** 2\
**Last updated:** [April 6, 2026, 7:01pm UTC](https://discourse.processing.org/t/can-there-exist-multiple-pairs-of-begindraw-and-enddraw-invoked-on-the-same-pgraphics-in-the-same-frame/48408 "2026-04-06T19:01:07Z")

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For example, would the following be legal and produce valid deterministic results: var A = createGraphics(...); var B = createGraphics(...); … // other stuff void draw() { A.beginDraw(); ... // draw shapes and …

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## [Texture sampling NEAREST in P2D render](https://discourse.processing.org/t/texture-sampling-nearest-in-p2d-render/48399)

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**Author:** [@AniManOtaku](https://discourse.processing.org/u/AniManOtaku)\
**Replies:** 9\
**Last updated:** [April 5, 2026, 9:39am UTC](https://discourse.processing.org/t/texture-sampling-nearest-in-p2d-render/48399 "2026-04-05T09:39:15Z")

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Hi i work with PShader and i really want to get not smoothed pixels from texture2D. How do i set texture sampling NEAREST in PGraphics in P2D render?

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## [Android SDK not valid](https://discourse.processing.org/t/android-sdk-not-valid/47964)

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**Author:** [@PLloyd](https://discourse.processing.org/u/PLloyd)\
**Replies:** 5\
**Last updated:** [April 4, 2026, 12:56pm UTC](https://discourse.processing.org/t/android-sdk-not-valid/47964 "2026-04-04T12:56:55Z")

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When I switch from Java mode to Android mode a pop-up window appears stating that the Android SDK is not valid. Both automatic and manual loading methods fail. However the requested API (API 33) is installed as shown in…

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## [New educational program for young beginners in programming](https://discourse.processing.org/t/new-educational-program-for-young-beginners-in-programming/35002)

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**Author:** [@desk](https://discourse.processing.org/u/desk)\
**Replies:** 1\
**Last updated:** [April 2, 2026, 6:42am UTC](https://discourse.processing.org/t/new-educational-program-for-young-beginners-in-programming/35002 "2026-04-02T06:42:06Z")

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I’ve decided to open source a few projects I’ve developed so that others can use and even help develop them. This project helps young children understand instructions and sequence in a cute way. https://github.com/t…

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## [Lost in Space PGraphics Exploration](https://discourse.processing.org/t/lost-in-space-pgraphics-exploration/48391)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 0\
**Last updated:** [April 1, 2026, 3:46pm UTC](https://discourse.processing.org/t/lost-in-space-pgraphics-exploration/48391 "2026-04-01T15:46:22Z")

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Hello folks! Some simple and fun code exploring PGraphics. // Author: GLV // Date: 2026-04-01 // Description: // Some fun with PGraphics // Watch while listening to: // https://open.spotify.com/track/1i2HCDqbRb6onbo…

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## [PstarEngine : I'm building a small game engine with Processing and P5js](https://discourse.processing.org/t/pstarengine-im-building-a-small-game-engine-with-processing-and-p5js/46870)

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**Author:** [@EricRogerGarcia](https://discourse.processing.org/u/EricRogerGarcia)\
**Replies:** 12\
**Last updated:** [April 1, 2026, 11:47am UTC](https://discourse.processing.org/t/pstarengine-im-building-a-small-game-engine-with-processing-and-p5js/46870 "2026-04-01T11:47:49Z")

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It is about having 2 versions: in Java with Processing and in Javascript with P5js. The idea of this project is, on the one hand, to be able to create small 2D games by being able to understand and access the engine cod…

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## [Is there a way to chain effects in Processing sound library?](https://discourse.processing.org/t/is-there-a-way-to-chain-effects-in-processing-sound-library/48337)

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**Author:** [@Txo](https://discourse.processing.org/u/Txo)\
**Replies:** 4\
**Last updated:** [March 31, 2026, 9:41am UTC](https://discourse.processing.org/t/is-there-a-way-to-chain-effects-in-processing-sound-library/48337 "2026-03-31T09:41:49Z")

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I was trying to chain some effects with the Processing sound library but couldn’t do it in any way. I neither find any documentation about this. If you try to apply then directly to the source it only applies the last on…

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## [Control variables and method created while a program is running](https://discourse.processing.org/t/control-variables-and-method-created-while-a-program-is-running/47995)

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**Author:** [@EricRogerGarcia](https://discourse.processing.org/u/EricRogerGarcia)\
**Replies:** 28\
**Last updated:** [March 31, 2026, 6:19am UTC](https://discourse.processing.org/t/control-variables-and-method-created-while-a-program-is-running/47995 "2026-03-31T06:19:15Z")

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Another weird question ! lol In java, it is impossible to create a variable or a method outside the class declaration. But in Javascript, it is quite possible. I just spent a lot of time looking for the origin of a ver…

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## [Learning Creative Learning](https://discourse.processing.org/t/learning-creative-learning/48349)

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**Author:** [@mcintyre](https://discourse.processing.org/u/mcintyre)\
**Replies:** 0\
**Last updated:** [March 29, 2026, 8:06pm UTC](https://discourse.processing.org/t/learning-creative-learning/48349 "2026-03-29T20:06:56Z")

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The Learning Creative Learning online course will be offered again starting in mid-April. I participated a few years ago and thought it was excellent! Here’s the description from the creators: Learning Creative Learnin…

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## [L5 Usability testing for creative coders coming from Processing and p5.js](https://discourse.processing.org/t/l5-usability-testing-for-creative-coders-coming-from-processing-and-p5-js/47903)

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**Author:** [@lee](https://discourse.processing.org/u/lee)\
**Replies:** 3\
**Last updated:** [March 29, 2026, 8:59am UTC](https://discourse.processing.org/t/l5-usability-testing-for-creative-coders-coming-from-processing-and-p5-js/47903 "2026-03-29T08:59:17Z")

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Hello all, I am working with graduate students at University of Washington on a Usability study of L5, for those with previous experience with p5.js or Processing but not L5. They are interested in meeting online in one…

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## [P3DE (Processing 3D Editor) with Script Engine & Terminal & Blueprint](https://discourse.processing.org/t/p3de-processing-3d-editor-with-script-engine-terminal-blueprint/48292)

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**Author:** [@fddxsyf123](https://discourse.processing.org/u/fddxsyf123)\
**Replies:** 1\
**Last updated:** [March 26, 2026, 6:40pm UTC](https://discourse.processing.org/t/p3de-processing-3d-editor-with-script-engine-terminal-blueprint/48292 "2026-03-26T18:40:37Z")

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Hello everyone! I’m very excited to share my research project, and I hope it can serve as a useful reference for all of you. Using Processing’s native framework, I built a 3D scene editor. It features a functional UI, b…

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## [Have a heart...❤️](https://discourse.processing.org/t/have-a-heart/47881)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 1\
**Last updated:** [March 26, 2026, 4:44pm UTC](https://discourse.processing.org/t/have-a-heart/47881 "2026-03-26T16:44:32Z")

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// heart float x = 16 \* pow(sin(angle), 3); float y = 13 \* cos(angle) - 5 \* cos(2 \* angle) - 2 \* cos(3 \* angle) - cos(4 \* angle); ▶ Code Reference: Valentine's Day - Wikipedia P…

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## [Embedded sketches missing a space in title](https://discourse.processing.org/t/embedded-sketches-missing-a-space-in-title/48271)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 2\
**Last updated:** [March 26, 2026, 3:20pm UTC](https://discourse.processing.org/t/embedded-sketches-missing-a-space-in-title/48271 "2026-03-26T15:20:48Z")

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Hello folks! I have been sharing some embedded sketches and there is no space between the name of sketch and the author: Sketch is embedded here: Pi + 5 Day (Monte Carlo method) Hello @kit, Should I submit an issu…

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## [Best way to export an animation from a p5.js sketch in 2026](https://discourse.processing.org/t/best-way-to-export-an-animation-from-a-p5-js-sketch-in-2026/48274)

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**Author:** [@slacle](https://discourse.processing.org/u/slacle)\
**Replies:** 1\
**Last updated:** [March 24, 2026, 12:53pm UTC](https://discourse.processing.org/t/best-way-to-export-an-animation-from-a-p5-js-sketch-in-2026/48274 "2026-03-24T12:53:39Z")

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I have used a couple of methods which are good for sharing video renders on social media without worrying about high quality. But now I want the best quality possible. 4K, 30/60fps, and high bitrate mp4 to specific. I h…

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## [How move the penguin without the arms flying off?](https://discourse.processing.org/t/how-move-the-penguin-without-the-arms-flying-off/48065)

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**Author:** [@False](https://discourse.processing.org/u/False)\
**Replies:** 2\
**Last updated:** [March 24, 2026, 8:02am UTC](https://discourse.processing.org/t/how-move-the-penguin-without-the-arms-flying-off/48065 "2026-03-24T08:02:52Z")

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‘’‘processing’‘’ //position float xorigin, yorigin; //origin position float xPos, yPos; //penguin position //wing animation float wingangle; float wingspeed; float upperwinglimit; float lowerwinglimit; boolean…

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## [PCD @ Linz 2026](https://discourse.processing.org/t/pcd-linz-2026/48218)

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**Author:** [@sableraph](https://discourse.processing.org/u/sableraph)\
**Replies:** 2\
**Last updated:** [March 23, 2026, 6:29pm UTC](https://discourse.processing.org/t/pcd-linz-2026/48218 "2026-03-23T18:29:25Z")

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This year, the Processing Foundation is invited by the Ars Electronica Festival to host a Processing Community Day and celebrate Processing’s 25th anniversary during the festival. This makes the Linz gathering a bit dif…

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## [Cochlear spiral spectrogram — visualizing music like the inner ear](https://discourse.processing.org/t/cochlear-spiral-spectrogram-visualizing-music-like-the-inner-ear/48267)

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**Author:** [@nivdvir](https://discourse.processing.org/u/nivdvir)\
**Replies:** 0\
**Last updated:** [March 22, 2026, 2:17pm UTC](https://discourse.processing.org/t/cochlear-spiral-spectrogram-visualizing-music-like-the-inner-ear/48267 "2026-03-22T14:17:30Z")

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I built a music visualization system that maps audio frequencies onto a Fermat spiral, mimicking how the human cochlea processes sound. How it works: 381 logarithmically-spaced frequency bins (20 Hz — 8 kHz) Mapped …

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## [Why is Android Mode for Processing 4 so laggy compared to Android Mode for Processing 3?](https://discourse.processing.org/t/why-is-android-mode-for-processing-4-so-laggy-compared-to-android-mode-for-processing-3/48241)

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**Author:** [@aiapps](https://discourse.processing.org/u/aiapps)\
**Replies:** 0\
**Last updated:** [March 19, 2026, 9:09pm UTC](https://discourse.processing.org/t/why-is-android-mode-for-processing-4-so-laggy-compared-to-android-mode-for-processing-3/48241 "2026-03-19T21:09:09Z")

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I noticed that the code written for the new version lags significantly more, regardless of the render type. What causes this behavior? To reproduce this situation, it is enough to set the line thickness to 2 and try to…

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## [PCD @ Santiago 2026](https://discourse.processing.org/t/pcd-santiago-2026/48239)

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**Author:** [@santiagoClifford](https://discourse.processing.org/u/santiagoClifford)\
**Replies:** 2\
**Last updated:** [March 19, 2026, 8:59pm UTC](https://discourse.processing.org/t/pcd-santiago-2026/48239 "2026-03-19T20:59:57Z")

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Hi! Our team at the Interaction Design Laboratory, along side the Center for the Technological Revolution in Creative Industries(CRTIC), will be hosting a Processing Community Day Chile 2026. The event will consist of a…

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## [Pi Day (Monte Carlo method)](https://discourse.processing.org/t/pi-day-monte-carlo-method/48237)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 0\
**Last updated:** [March 19, 2026, 5:46pm UTC](https://discourse.processing.org/t/pi-day-monte-carlo-method/48237 "2026-03-19T17:46:59Z")

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Hello folks! It is never to late for Pi! // Monte Carlo Pi // glv // 2026-03-19 // Reference: // https://en.wikipedia.org/wiki/Monte\_Carlo\_method // The exact math: // Area of circle: PI\*r\*r // Area of square: 2\*r \* …

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## [Processing Community Day @ The Netherlands 2026](https://discourse.processing.org/t/processing-community-day-the-netherlands-2026/48141)

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**Author:** [@Saskia](https://discourse.processing.org/u/Saskia)\
**Replies:** 1\
**Last updated:** [March 19, 2026, 2:01pm UTC](https://discourse.processing.org/t/processing-community-day-the-netherlands-2026/48141 "2026-03-19T14:01:55Z")

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Hi All, Starting a place to check how we can make one or multiple PCD events in The Netherlands. Let me know if anyone have any plans.

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## [PCD@Amsterdam 2026](https://discourse.processing.org/t/pcd-amsterdam-2026/48140)

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**Author:** [@maveme](https://discourse.processing.org/u/maveme)\
**Replies:** 4\
**Last updated:** [March 19, 2026, 12:00pm UTC](https://discourse.processing.org/t/pcd-amsterdam-2026/48140 "2026-03-19T12:00:10Z")

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Hi everyone! A couple of years ago I organised a summer course on Creative Coding with P5.js at VU Amsterdam, I’m excited to explore the possibility of hosting a PCD event in Amsterdam. If you’re interested in organizi…

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## [P5.js virtual POV Poi in my Flask Web App](https://discourse.processing.org/t/p5-js-virtual-pov-poi-in-my-flask-web-app/48222)

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**Author:** [@tomjuggler](https://discourse.processing.org/u/tomjuggler)\
**Replies:** 0\
**Last updated:** [March 18, 2026, 7:21pm UTC](https://discourse.processing.org/t/p5-js-virtual-pov-poi-in-my-flask-web-app/48222 "2026-03-18T19:21:07Z")

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Still using Processing after 10 years! I do some Android prototyping and also this P5.js sketch which takes images and displays a virtual persistence-of-vision effect on my site (https://magicpoi.com - login is for my …

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