# Latest

**URL:** https://discourse.processing.org/latest.md?page=22

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

**Page:** 23

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## [Box2D example not building](https://discourse.processing.org/t/box2d-example-not-building/46353)

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**Author:** [@RichardDL](https://discourse.processing.org/u/RichardDL)\
**Replies:** 1\
**Last updated:** [May 17, 2025, 7:25am UTC](https://discourse.processing.org/t/box2d-example-not-building/46353 "2025-05-17T07:25:43Z")

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Hi, I’m trying the basic examples for Android. On Processing for Android, when I run the example from just below “A more complex example using Box2D”, it complains: No library found for shiffman.box2d No library found …

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## [Border between two colours](https://discourse.processing.org/t/border-between-two-colours/46399)

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**Author:** [@paulstgeorge](https://discourse.processing.org/u/paulstgeorge)\
**Replies:** 4\
**Last updated:** [May 17, 2025, 5:43am UTC](https://discourse.processing.org/t/border-between-two-colours/46399 "2025-05-17T05:43:14Z")

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I have loaded an image into Processing. loadImage("setup.png"); Here (below) is a greatly magnified screenshot. I want an easy way to make the pixels along the border either red or blue. The choice could be change to t…

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## [Open Call for Processing Project Lead – Apply Now!](https://discourse.processing.org/t/open-call-for-processing-project-lead-apply-now/46296)

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**Author:** [@ProcessingOrg](https://discourse.processing.org/u/ProcessingOrg)\
**Replies:** 2\
**Last updated:** [May 15, 2025, 3:48pm UTC](https://discourse.processing.org/t/open-call-for-processing-project-lead-apply-now/46296 "2025-05-15T15:48:43Z")

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The open call for the Processing Project Lead position is now closed. Thank you to everyone who applied! We are looking for an experienced software developer with a passion for open-source software, technical leadership…

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## [Processing doesn't work now](https://discourse.processing.org/t/processing-doesnt-work-now/18034)

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**Author:** [@HackinHarry](https://discourse.processing.org/u/HackinHarry)\
**Replies:** 11\
**Last updated:** [May 15, 2025, 1:14am UTC](https://discourse.processing.org/t/processing-doesnt-work-now/18034 "2025-05-15T01:14:03Z")

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I’m using a chromebook that runs linux in a container. I downloaded processsing 3.5.3 a month ago and things worked great. I got a message today when I went to start the chromebook that an important update was being in…

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## [Trying to check string against name of array](https://discourse.processing.org/t/trying-to-check-string-against-name-of-array/46382)

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**Author:** [@ember314](https://discourse.processing.org/u/ember314)\
**Replies:** 4\
**Last updated:** [May 14, 2025, 2:59pm UTC](https://discourse.processing.org/t/trying-to-check-string-against-name-of-array/46382 "2025-05-14T14:59:48Z")

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Hi all! I’m brand new to the forums, and to processing in general, so my apologies if anything is wrong with my post! I’m trying to make a game in a similar format to games like Pokedle (https://pokedle.net/), but with …

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## [Generating a table of audio wave tables for sample-based music programs](https://discourse.processing.org/t/generating-a-table-of-audio-wave-tables-for-sample-based-music-programs/46389)

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**Author:** [@scudly](https://discourse.processing.org/u/scudly)\
**Replies:** 2\
**Last updated:** [May 13, 2025, 1:56am UTC](https://discourse.processing.org/t/generating-a-table-of-audio-wave-tables-for-sample-based-music-programs/46389 "2025-05-13T01:56:10Z")

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For music, you might want to create a periodic (repeating) noise signal. And for speed you might like to create the signal on the GPU writing the values to a texture or SSBO. If so, https://jcgt.org/published/0011/01/0…

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## [Help please: exec() fails with posix\_spawn error](https://discourse.processing.org/t/help-please-exec-fails-with-posix-spawn-error/46374)

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**Author:** [@AndrewS](https://discourse.processing.org/u/AndrewS)\
**Replies:** 8\
**Last updated:** [May 13, 2025, 5:54am UTC](https://discourse.processing.org/t/help-please-exec-fails-with-posix-spawn-error/46374 "2025-05-13T05:54:54Z")

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Modernising some code that currently runs slowly on a 2014 mac mini (Yosemite, Processing 3.5.4) to run on a 2017 iMac (Ventura, Processing 4.4.1). Calls to ‘exec()’ work on the 2014 machine and a 2017 Macbook Pro (Ventu…

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## [Can I reuse some Processing core code?](https://discourse.processing.org/t/can-i-reuse-some-processing-core-code/46321)

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**Author:** [@damaru](https://discourse.processing.org/u/damaru)\
**Replies:** 4\
**Last updated:** [May 6, 2025, 2:34pm UTC](https://discourse.processing.org/t/can-i-reuse-some-processing-core-code/46321 "2025-05-06T14:34:08Z")

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I’ve been studing the Nature of Code book and reached the section on Perlin Noise. I got an idea - I can use Perlin noise to generate a table of audio wave tables that I can load into sample-based music programs. I want…

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## [The "Utah Teapot"](https://discourse.processing.org/t/the-utah-teapot/45767)

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**Author:** [@quark](https://discourse.processing.org/u/quark)\
**Replies:** 4\
**Last updated:** [May 12, 2025, 4:20pm UTC](https://discourse.processing.org/t/the-utah-teapot/45767 "2025-05-12T16:20:51Z")

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The 'Utah Teapot" model was created 50 years ago and is one of the first to be modeled using Bezier curves. Drag the mouse to rotate the teapot, use mouse wheel to zoom. This is a port of a Java version I created 5 y…

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## [\[Solved\] Can't run py5 sketch : Fatal error detected by the Java Runtime Environment](https://discourse.processing.org/t/solved-cant-run-py5-sketch-fatal-error-detected-by-the-java-runtime-environment/46329)

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**Author:** [@Bcome](https://discourse.processing.org/u/Bcome)\
**Replies:** 9\
**Last updated:** [May 10, 2025, 4:00am UTC](https://discourse.processing.org/t/solved-cant-run-py5-sketch-fatal-error-detected-by-the-java-runtime-environment/46329 "2025-05-10T04:00:54Z")

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Hello, I have a problem running the basic example py5 sketch (.py file) with VS code on my Mac with the error message below (also telling me that an error report file was created). I’m sorry in advance if the solution is…

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## [Looking for clip(), noClip() alternative; it no longer works](https://discourse.processing.org/t/looking-for-clip-noclip-alternative-it-no-longer-works/46340)

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**Author:** [@enonod](https://discourse.processing.org/u/enonod)\
**Replies:** 12\
**Last updated:** [May 9, 2025, 8:16am UTC](https://discourse.processing.org/t/looking-for-clip-noclip-alternative-it-no-longer-works/46340 "2025-05-09T08:16:21Z")

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I have used the clip(), noClip() pair to constrain scrolling text to a rectangle in Android 4.4.2. The same sketch does not work in Android 12 and maybe prior to that. It seems it has been deprecated. I have been unabl…

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## [GSoC 2025: Join the Processing Foundation as a Summer of Code Contributor!](https://discourse.processing.org/t/gsoc-2025-join-the-processing-foundation-as-a-summer-of-code-contributor/45854)

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**Author:** [@kit](https://discourse.processing.org/u/kit)\
**Replies:** 224\
**Last updated:** [May 9, 2025, 6:12am UTC](https://discourse.processing.org/t/gsoc-2025-join-the-processing-foundation-as-a-summer-of-code-contributor/45854 "2025-05-09T06:12:02Z")

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Hi everyone! :blossom: Thread looking a little too long to skim? We’re keeping the Frequently Asked Questions (FAQs) resource up-to-date with questions people have been asking, so you can start there and add your questi…

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## [SVG Export Issue transform="scale(2,2)"](https://discourse.processing.org/t/svg-export-issue-transform-scale-2-2/46350)

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**Author:** [@helaine.b](https://discourse.processing.org/u/helaine.b)\
**Replies:** 3\
**Last updated:** [May 8, 2025, 5:35pm UTC](https://discourse.processing.org/t/svg-export-issue-transform-scale-2-2/46350 "2025-05-08T17:35:17Z")

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After updating to Processing 4.4.3 yesterday (necessary to be able to run via command line on a mac) I’m finding that SVG exports have a tag transform="scale(2,2)" that results in the SVG contents scaling up and the boun…

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## [(Question) Processing 3 Minim Audio Visual](https://discourse.processing.org/t/question-processing-3-minim-audio-visual/46344)

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**Author:** [@nuclearns](https://discourse.processing.org/u/nuclearns)\
**Replies:** 0\
**Last updated:** [May 7, 2025, 8:00pm UTC](https://discourse.processing.org/t/question-processing-3-minim-audio-visual/46344 "2025-05-07T20:00:09Z")

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Hello, In the work below, the text sometimes speeds up and then slows down. It didn’t work for me. How is it done, friends? The visibility of the letters changes according to the sound heard from the microphone. I want…

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## [Processing Website Documentation (Serial)](https://discourse.processing.org/t/processing-website-documentation-serial/46343)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 1\
**Last updated:** [May 7, 2025, 7:59pm UTC](https://discourse.processing.org/t/processing-website-documentation-serial/46343 "2025-05-07T19:59:02Z")

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Hello folks, There are some opportunities for improvement on the website documentation. I am an experienced embedded C programmer and have had a chance to connect to Processing with the Processing Serial library (and o…

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## [Smooth zooming in and out on your mouse tip](https://discourse.processing.org/t/smooth-zooming-in-and-out-on-your-mouse-tip/46117)

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**Author:** [@villares](https://discourse.processing.org/u/villares)\
**Replies:** 19\
**Last updated:** [May 7, 2025, 4:25pm UTC](https://discourse.processing.org/t/smooth-zooming-in-and-out-on-your-mouse-tip/46117 "2025-05-07T16:25:10Z")

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My dear friend John, a.k.a introscopia has this amazing smooth zoom and pan code I really like, but he uses mostly SDL nowadays, so I asked him for help and made these two examples. One in Processing Java and the other f…

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## [Canvas Scaling with different renderers](https://discourse.processing.org/t/canvas-scaling-with-different-renderers/46337)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 2\
**Last updated:** [May 7, 2025, 1:54pm UTC](https://discourse.processing.org/t/canvas-scaling-with-different-renderers/46337 "2025-05-07T13:54:25Z")

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Hello folks, I noticed different scaling for sketch windows on W10 with the following for my Display settings and using different renderers: Test code: import processing.javafx.\*; void setup() { size(400, 200…

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## [Android sound frequency fft and peak](https://discourse.processing.org/t/android-sound-frequency-fft-and-peak/46338)

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**Author:** [@jafal](https://discourse.processing.org/u/jafal)\
**Replies:** 1\
**Last updated:** [May 7, 2025, 2:27am UTC](https://discourse.processing.org/t/android-sound-frequency-fft-and-peak/46338 "2025-05-07T02:27:43Z")

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Most sound libraries not working on APDE this sketch tested directly on APDE 5.1 android 8 I am working on enhance it to be more reliable Thanks for @noel one of the best teachers import android.media.AudioRecord;…

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## [Error when activating p5.js mode in Desktop](https://discourse.processing.org/t/error-when-activating-p5-js-mode-in-desktop/46336)

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**Author:** [@edwin\_isensee](https://discourse.processing.org/u/edwin_isensee)\
**Replies:** 2\
**Last updated:** [May 6, 2025, 10:03pm UTC](https://discourse.processing.org/t/error-when-activating-p5-js-mode-in-desktop/46336 "2025-05-06T22:03:14Z")

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I just installed Processing 4.4.1 on my Windows 11 laptop. After that, I installed the p5.js mode. Everything went fine. However, when I try to activate the p5.js mode, I receive a weird message saying “A nasty error occ…

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## [Help with video code: distortion input videos](https://discourse.processing.org/t/help-with-video-code-distortion-input-videos/45918)

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**Author:** [@serra.magi](https://discourse.processing.org/u/serra.magi)\
**Replies:** 4\
**Last updated:** [May 6, 2025, 9:03am UTC](https://discourse.processing.org/t/help-with-video-code-distortion-input-videos/45918 "2025-05-06T09:03:15Z")

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Help me by suggesting initial code to play with the concept: distortion input videos

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## [Cannot run sketch on old Android kitkat device, using Processing 4 IDE](https://discourse.processing.org/t/cannot-run-sketch-on-old-android-kitkat-device-using-processing-4-ide/46288)

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**Author:** [@enonod](https://discourse.processing.org/u/enonod)\
**Replies:** 53\
**Last updated:** [May 4, 2025, 1:05pm UTC](https://discourse.processing.org/t/cannot-run-sketch-on-old-android-kitkat-device-using-processing-4-ide/46288 "2025-05-04T13:05:04Z")

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This has become a ‘rabbit hole’ at 13 posts and has now gone full circle back to post 1. Reading this is probably a waste of time. I am starting a new topic with a different approach. “What requirements for Processing 4 …

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## [How to set target & min sdk?](https://discourse.processing.org/t/how-to-set-target-min-sdk/46318)

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**Author:** [@shedMusic](https://discourse.processing.org/u/shedMusic)\
**Replies:** 3\
**Last updated:** [May 3, 2025, 4:33pm UTC](https://discourse.processing.org/t/how-to-set-target-min-sdk/46318 "2025-05-03T16:33:25Z")

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In early versions of Processing the Android menu had options to set the minSdk and targetSdk, but this has now gone. Also in the past, these were set in the manifest but I know from tinkering with Android Studio these ar…

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## [What requirements for Processing 4 and Android 4.4 KitKat?](https://discourse.processing.org/t/what-requirements-for-processing-4-and-android-4-4-kitkat/46309)

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**Author:** [@enonod](https://discourse.processing.org/u/enonod)\
**Replies:** 4\
**Last updated:** [May 1, 2025, 2:34pm UTC](https://discourse.processing.org/t/what-requirements-for-processing-4-and-android-4-4-kitkat/46309 "2025-05-01T14:34:06Z")

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Sorry for the length of this. I am using Big Sur mac and old Samsung GT-N5110 Android 4.4, because two years ago I wrote a game for it which works. I believe I originally used Processing 3.5.4 and upgraded to 4.0.1. All…

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## [Where is Gradle supposed to be installed?](https://discourse.processing.org/t/where-is-gradle-supposed-to-be-installed/46293)

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**Author:** [@svan](https://discourse.processing.org/u/svan)\
**Replies:** 2\
**Last updated:** [May 1, 2025, 12:48am UTC](https://discourse.processing.org/t/where-is-gradle-supposed-to-be-installed/46293 "2025-05-01T00:48:44Z")

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When running Android source code there is frequently an error message that says the user needs to install a later version of Gradle. How do we do that; where does it go?

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## [Beginner help -- zoom and pan -- drawing tool](https://discourse.processing.org/t/beginner-help-zoom-and-pan-drawing-tool/46302)

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**Author:** [@marlss7](https://discourse.processing.org/u/marlss7)\
**Replies:** 3\
**Last updated:** [April 30, 2025, 8:00pm UTC](https://discourse.processing.org/t/beginner-help-zoom-and-pan-drawing-tool/46302 "2025-04-30T20:00:17Z")

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hello, i am new to processing and have a somewhat basic question. i want this incredibly simple drawing tool where you can toggle a pixel on or off by pressing. HOWEVER, since the pixels are then so small, i want to have…

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## [2025 Processing Foundation Fellowship Prospective Applicants Meet & Greet](https://discourse.processing.org/t/2025-processing-foundation-fellowship-prospective-applicants-meet-greet/46106)

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**Author:** [@xinemata](https://discourse.processing.org/u/xinemata)\
**Replies:** 9\
**Last updated:** [April 29, 2025, 11:26pm UTC](https://discourse.processing.org/t/2025-processing-foundation-fellowship-prospective-applicants-meet-greet/46106 "2025-04-29T23:26:18Z")

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Hi everyone, :sunflower:This topic has been created in response to fellowship info session I hosted on March 29, 2025.:sunflower: If you’re considering applying for the 2025 Processing Foundation Fellowship and would l…

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## [Trouble in downloading the Geomerative library — Processing](https://discourse.processing.org/t/trouble-in-downloading-the-geomerative-library-processing/46287)

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**Author:** [@halleyscomet](https://discourse.processing.org/u/halleyscomet)\
**Replies:** 4\
**Last updated:** [April 28, 2025, 5:49pm UTC](https://discourse.processing.org/t/trouble-in-downloading-the-geomerative-library-processing/46287 "2025-04-28T17:49:12Z")

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Hello, I’m new to Processing, and I have to use the Geomerative library for a project using SVG and a plotter. However, I can’t find the Geomerative library in the “add libraries” window of Processing. I also tried to a…

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## [Issue with resizing image](https://discourse.processing.org/t/issue-with-resizing-image/46271)

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**Author:** [@IRIGIMA](https://discourse.processing.org/u/IRIGIMA)\
**Replies:** 12\
**Last updated:** [April 28, 2025, 7:33am UTC](https://discourse.processing.org/t/issue-with-resizing-image/46271 "2025-04-28T07:33:18Z")

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Require urgent help! What am I doing wrong?? Maths is correct, but… Overview: To display a source image (example 15000 X 5000 PX) on 1920 X 1080 destination output. (keeping the correct aspect for destination) Due to…

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## [Problem using p5 'esm' via jsdeliver (cdn)](https://discourse.processing.org/t/problem-using-p5-esm-via-jsdeliver-cdn/46279)

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**Author:** [@dalanicolai](https://discourse.processing.org/u/dalanicolai)\
**Replies:** 3\
**Last updated:** [April 26, 2025, 8:34am UTC](https://discourse.processing.org/t/problem-using-p5-esm-via-jsdeliver-cdn/46279 "2025-04-26T08:34:20Z")

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Hello, I am very new to javascript and even more to ES modules. However, I think I am trying things out correctly here. But as I am not sure if I am doing things right, I first drop a question here before I report an is…

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## [How do I make a button class call a function from inside or outside class](https://discourse.processing.org/t/how-do-i-make-a-button-class-call-a-function-from-inside-or-outside-class/46268)

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**Author:** [@ggomez](https://discourse.processing.org/u/ggomez)\
**Replies:** 2\
**Last updated:** [April 24, 2025, 5:53am UTC](https://discourse.processing.org/t/how-do-i-make-a-button-class-call-a-function-from-inside-or-outside-class/46268 "2025-04-24T05:53:53Z")

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So I think my question is very simple but I lack the vocabulary to google it myself effectively, thing is, I’m creating a custom Button class and I need to call custom code when instantiating it. I tried using mehod() bu…

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