# Latest

**URL:** https://discourse.processing.org/latest.md?page=13

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

**Page:** 14

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## [Error: The package “javax.xml.bind” does not exist. You might be missing a library](https://discourse.processing.org/t/error-the-package-javax-xml-bind-does-not-exist-you-might-be-missing-a-library/47360)

<div class="topic-metadata">

**Author:** [@Bua](https://discourse.processing.org/u/Bua)\
**Replies:** 9\
**Last updated:** [October 27, 2025, 4:36pm UTC](https://discourse.processing.org/t/error-the-package-javax-xml-bind-does-not-exist-you-might-be-missing-a-library/47360 "2025-10-27T16:36:10Z")

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Hi, this is an example to connect an Arduino-BLE33 Nano to www.teachablemachine.withgoogle.com and called TM\_Collector. I want to transfer Image-data with the virtuell COM to the processing TM\_Connector application... Th…

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## [Remove all items from G4P Droplist](https://discourse.processing.org/t/remove-all-items-from-g4p-droplist/44306)

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**Author:** [@Thundercat](https://discourse.processing.org/u/Thundercat)\
**Replies:** 5\
**Last updated:** [October 27, 2025, 6:47am UTC](https://discourse.processing.org/t/remove-all-items-from-g4p-droplist/44306 "2025-10-27T06:47:40Z")

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Hi, I’m trying to dynamically empty a drop list on certain conditions. I notice there is no “length” property for the droplist. I don’t know how many items I will have, so when I try to use the “removeItem” method, it d…

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## [Library documentation for "missing" libraries](https://discourse.processing.org/t/library-documentation-for-missing-libraries/47442)

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**Author:** [@sterretje](https://discourse.processing.org/u/sterretje)\
**Replies:** 5\
**Last updated:** [October 26, 2025, 5:56am UTC](https://discourse.processing.org/t/library-documentation-for-missing-libraries/47442 "2025-10-26T05:56:52Z")

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I’ve helped a few people in the past. One of the topics used import processing.video.\*;. I can not remember that I had to install that library specifically (possibly I did use of version of Processing IDE 3.x) but I migh…

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## [P5.js V2.0.5 on own server: loadTable issues](https://discourse.processing.org/t/p5-js-v2-0-5-on-own-server-loadtable-issues/47441)

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**Author:** [@RPI](https://discourse.processing.org/u/RPI)\
**Replies:** 2\
**Last updated:** [October 26, 2025, 12:39am UTC](https://discourse.processing.org/t/p5-js-v2-0-5-on-own-server-loadtable-issues/47441 "2025-10-26T00:39:38Z")

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i have my project online editor when i ZIP download the code from there and copy it into my local RPI4 NGINX server browser can not find the needed file ( like table ) but that is understandable: http://192.168.1.10…

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## ["NullPointerException" when I try to create a MidiBus object from The MidiBus library](https://discourse.processing.org/t/nullpointerexception-when-i-try-to-create-a-midibus-object-from-the-midibus-library/47445)

<div class="topic-metadata">

**Author:** [@JakeFromJakku](https://discourse.processing.org/u/JakeFromJakku)\
**Replies:** 2\
**Last updated:** [October 26, 2025, 12:14am UTC](https://discourse.processing.org/t/nullpointerexception-when-i-try-to-create-a-midibus-object-from-the-midibus-library/47445 "2025-10-26T00:14:18Z")

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Hello, does anyone know how I can open up libraries that I’ve imported so I can investigate why I’m getting a null pointer when I make a new midi bus? I need to get into “The MidiBus” by Severin Smith I’m following the …

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## [Can I install Processing 4.4.4 on local drive?](https://discourse.processing.org/t/can-i-install-processing-4-4-4-on-local-drive/46917)

<div class="topic-metadata">

**Author:** [@newuser](https://discourse.processing.org/u/newuser)\
**Replies:** 7\
**Last updated:** [October 25, 2025, 9:52pm UTC](https://discourse.processing.org/t/can-i-install-processing-4-4-4-on-local-drive/46917 "2025-10-25T21:52:58Z")

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OS: Windows 11 I previously installed Processing 4.4.4 “Typical” and it was installed on \>\> C:\\Users\\newuser\\OneDrive\\Documentsbut that causes problems with launching when my internet is not working, and also takes abou…

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## [Decreased quality when coding outside the Processing IDE](https://discourse.processing.org/t/decreased-quality-when-coding-outside-the-processing-ide/40818)

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**Author:** [@Grusat](https://discourse.processing.org/u/Grusat)\
**Replies:** 23\
**Last updated:** [October 25, 2025, 8:56pm UTC](https://discourse.processing.org/t/decreased-quality-when-coding-outside-the-processing-ide/40818 "2025-10-25T20:56:59Z")

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After many years with Processing IDE, I missed Intellij IDEA too much so I went back for it but Processing stays on :wink: However, the shapes drawn are way less sharp than in the real PDE, for example, a simple circle …

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## [Please help, code crashes and I can't figure out why](https://discourse.processing.org/t/please-help-code-crashes-and-i-cant-figure-out-why/47440)

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**Author:** [@Hallowed31](https://discourse.processing.org/u/Hallowed31)\
**Replies:** 4\
**Last updated:** [October 25, 2025, 7:17pm UTC](https://discourse.processing.org/t/please-help-code-crashes-and-i-cant-figure-out-why/47440 "2025-10-25T19:17:08Z")

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Hello all. Time is getting thin, as is my ability to troubleshoot errors I do not understand. My code interfaces with an Arduino Uno R4 Wifi and all the Arduino does is send messages over Serial to change the state of m…

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## [DPI Renderer Scaling Override for JAVA2D](https://discourse.processing.org/t/dpi-renderer-scaling-override-for-java2d/47439)

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**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 0\
**Last updated:** [October 24, 2025, 6:26pm UTC](https://discourse.processing.org/t/dpi-renderer-scaling-override-for-java2d/47439 "2025-10-24T18:26:13Z")

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Hello folks! Forcing 1:1 Pixel Rendering for Different Renderers in Processing This topic is for OS-level DPI scaling in Windows such as: This sketch demonstrates how to force 1:1 pixel rendering by overriding DPI …

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## [Join us at Open Assembly 2025](https://discourse.processing.org/t/join-us-at-open-assembly-2025/47438)

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**Author:** [@ProcessingOrg](https://discourse.processing.org/u/ProcessingOrg)\
**Replies:** 0\
**Last updated:** [October 24, 2025, 5:40pm UTC](https://discourse.processing.org/t/join-us-at-open-assembly-2025/47438 "2025-10-24T17:40:30Z")

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Open Assembly is happening on October 29 and we’d love to have you join us. It’s a global online festival celebrating 12 incredible projects from our 2025 Fellows and contributors. Expect creative coding tools, accessib…

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## [Run processing file from terminal](https://discourse.processing.org/t/run-processing-file-from-terminal/47320)

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**Author:** [@potato](https://discourse.processing.org/u/potato)\
**Replies:** 3\
**Last updated:** [October 24, 2025, 8:37am UTC](https://discourse.processing.org/t/run-processing-file-from-terminal/47320 "2025-10-24T08:37:20Z")

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## [Support for a planetarium program](https://discourse.processing.org/t/support-for-a-planetarium-program/47398)

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**Author:** [@fulldomedia](https://discourse.processing.org/u/fulldomedia)\
**Replies:** 1\
**Last updated:** [October 23, 2025, 3:50pm UTC](https://discourse.processing.org/t/support-for-a-planetarium-program/47398 "2025-10-23T15:50:48Z")

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We need support revising an existing Processing app under Windows 11 for our mobile planetarium. The program explores CO2 emissions in different countries and their development over the decades as an animated data visual…

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## [Windows UI scaling not respected](https://discourse.processing.org/t/windows-ui-scaling-not-respected/45905)

<div class="topic-metadata">

**Author:** [@esc746](https://discourse.processing.org/u/esc746)\
**Replies:** 4\
**Last updated:** [October 23, 2025, 3:00pm UTC](https://discourse.processing.org/t/windows-ui-scaling-not-respected/45905 "2025-10-23T15:00:19Z")

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When using the default graphics renderer, UI scaling in Windows is respected but not when using FX2D. With any scale higher than 100% the canvas sizes incorrectly. Unfortunately, for the graphics I am teaching, the defa…

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## [createCapture on Android (Nokia 7.2)](https://discourse.processing.org/t/createcapture-on-android-nokia-7-2/47419)

<div class="topic-metadata">

**Author:** [@jjjochennn](https://discourse.processing.org/u/jjjochennn)\
**Replies:** 1\
**Last updated:** [October 23, 2025, 8:00am UTC](https://discourse.processing.org/t/createcapture-on-android-nokia-7-2/47419 "2025-10-23T08:00:12Z")

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Hi all I have this stripped down basic code that I want to run on my Nokia 7.2 smartphone: \<!-- let capture; let options = { video: { facingMode: { exact: "environment" }, width: { ideal: 2280 }, height: …

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## [Workaround for Unicode Characters from JAVA2D to P2D](https://discourse.processing.org/t/workaround-for-unicode-characters-from-java2d-to-p2d/47412)

<div class="topic-metadata">

**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 0\
**Last updated:** [October 21, 2025, 3:36pm UTC](https://discourse.processing.org/t/workaround-for-unicode-characters-from-java2d-to-p2d/47412 "2025-10-21T15:36:21Z")

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Hello folks! When Windows 10 display scaling is set to 125%, the sketch window rendered with JAVA2D is scaled up, making it appear larger and pixelated. In contrast, the P2D renderer does not scale the window but may h…

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## [Java Unicode Chars](https://discourse.processing.org/t/java-unicode-chars/34284)

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**Author:** [@jcgeo](https://discourse.processing.org/u/jcgeo)\
**Replies:** 5\
**Last updated:** [October 21, 2025, 2:59pm UTC](https://discourse.processing.org/t/java-unicode-chars/34284 "2025-10-21T14:59:20Z")

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Hello, I have a problem with using unicode chars in java in processing. I am trying to display random Katakana chars, which this format: this.value=Character.toString(char(0x30A0 +round(random(0,96)))); print(this.val…

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## [Video on Raspberry with VLCJvideo library extremely slow](https://discourse.processing.org/t/video-on-raspberry-with-vlcjvideo-library-extremely-slow/47411)

<div class="topic-metadata">

**Author:** [@qualidat](https://discourse.processing.org/u/qualidat)\
**Replies:** 0\
**Last updated:** [October 21, 2025, 2:54pm UTC](https://discourse.processing.org/t/video-on-raspberry-with-vlcjvideo-library-extremely-slow/47411 "2025-10-21T14:54:34Z")

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I want to play a video in MP4 format (H.264 codec) controlled with VLCJVideo. In the Processing environment, it is unreasonably slow and jerky. When I play the same video directly with the VLC player, it runs normally. …

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## [Spicy Text - A simple text animation and effect library for Processing](https://discourse.processing.org/t/spicy-text-a-simple-text-animation-and-effect-library-for-processing/47409)

<div class="topic-metadata">

**Author:** [@BarneyCodes](https://discourse.processing.org/u/BarneyCodes)\
**Replies:** 0\
**Last updated:** [October 21, 2025, 3:36am UTC](https://discourse.processing.org/t/spicy-text-a-simple-text-animation-and-effect-library-for-processing/47409 "2025-10-21T03:36:44Z")

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Hello! A little while ago I released a library called Spicy Text, which lets you nice and easily add colours and animations to your text in Processing. I finally got around to making a video that goes over how to insta…

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## [Serial library not found - Processing 4.4.8](https://discourse.processing.org/t/serial-library-not-found-processing-4-4-8/47302)

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**Author:** [@Kittycannon](https://discourse.processing.org/u/Kittycannon)\
**Replies:** 8\
**Last updated:** [October 20, 2025, 2:10pm UTC](https://discourse.processing.org/t/serial-library-not-found-processing-4-4-8/47302 "2025-10-20T14:10:56Z")

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So, where’s the Serial library? I feel like I’m crazy. When I download Processing and then install it, there’s no Serial library available. So I though I had to install it, but it doesn’t appear on the included manager…

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## [Question about //noprotect feature](https://discourse.processing.org/t/question-about-noprotect-feature/47401)

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**Author:** [@horizontal\_shading](https://discourse.processing.org/u/horizontal_shading)\
**Replies:** 3\
**Last updated:** [October 19, 2025, 8:57pm UTC](https://discourse.processing.org/t/question-about-noprotect-feature/47401 "2025-10-19T20:57:18Z")

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So as you all may know, there is a limit regarding how for loops work in p5.js. For example, this code draws many circles on top of each other on the canvas, but the process quickly halts & the canvas vanishes due to th…

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## [P5 js V 2.0.5 orbitControl Android touch](https://discourse.processing.org/t/p5-js-v-2-0-5-orbitcontrol-android-touch/47396)

<div class="topic-metadata">

**Author:** [@RPI](https://discourse.processing.org/u/RPI)\
**Replies:** 0\
**Last updated:** [October 19, 2025, 2:41am UTC](https://discourse.processing.org/t/p5-js-v-2-0-5-orbitcontrol-android-touch/47396 "2025-10-19T02:41:30Z")

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using orbit Control PC mouse: left: rotate middle (wheel ): zoom right: pan Android touch: one finger move: rotate 2 finger span: zoom 2 finger move: pan all works nice. but on Android browser, when i scroll do…

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## [Arduino Command Line](https://discourse.processing.org/t/arduino-command-line/47395)

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**Author:** [@svan](https://discourse.processing.org/u/svan)\
**Replies:** 0\
**Last updated:** [October 18, 2025, 9:48pm UTC](https://discourse.processing.org/t/arduino-command-line/47395 "2025-10-18T21:48:01Z")

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The following source code demonstrates arduino-cli which is a command line tool for compiling and uploading an arduino sketch to an arduino usb device. To get started you will need to download arduino-cli to your system…

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## [Why P2D not working inside Eclipse when i using the processing.core?](https://discourse.processing.org/t/why-p2d-not-working-inside-eclipse-when-i-using-the-processing-core/45930)

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**Author:** [@aiapps](https://discourse.processing.org/u/aiapps)\
**Replies:** 7\
**Last updated:** [October 18, 2025, 8:12pm UTC](https://discourse.processing.org/t/why-p2d-not-working-inside-eclipse-when-i-using-the-processing-core/45930 "2025-10-18T20:12:27Z")

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I just want to use another render in processing, i mean P2D Who is know, hot to fix this trouble in Eclipse? May be i just not imported necessary libs from processing?

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## [Android mode does not work at all](https://discourse.processing.org/t/android-mode-does-not-work-at-all/46586)

<div class="topic-metadata">

**Author:** [@aiapps](https://discourse.processing.org/u/aiapps)\
**Replies:** 12\
**Last updated:** [October 18, 2025, 1:47pm UTC](https://discourse.processing.org/t/android-mode-does-not-work-at-all/46586 "2025-10-18T13:47:24Z")

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I’m trying to connect the phone but it can’t see it. Phone OS: Android 13; Model: Galaxy M12;

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## [Will there be outline control support? (Control the direction of thickness, in, out, together)](https://discourse.processing.org/t/will-there-be-outline-control-support-control-the-direction-of-thickness-in-out-together/47393)

<div class="topic-metadata">

**Author:** [@aiapps](https://discourse.processing.org/u/aiapps)\
**Replies:** 0\
**Last updated:** [October 18, 2025, 12:57am UTC](https://discourse.processing.org/t/will-there-be-outline-control-support-control-the-direction-of-thickness-in-out-together/47393 "2025-10-18T00:57:28Z")

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There is a lack of stroke control for primitive shapes. It would be nice if we added the stroke direction control, inwards, outwards and in both directions together.

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## [Report System and Environment Diagnostics at Runtime](https://discourse.processing.org/t/report-system-and-environment-diagnostics-at-runtime/47384)

<div class="topic-metadata">

**Author:** [@glv](https://discourse.processing.org/u/glv)\
**Replies:** 6\
**Last updated:** [October 17, 2025, 6:34pm UTC](https://discourse.processing.org/t/report-system-and-environment-diagnostics-at-runtime/47384 "2025-10-17T18:34:31Z")

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Hello folks! A Processing sketch that reports detailed system and environment diagnostics at runtime. Designed to solve real-world project issues, this sketch blends system diagnostics with AI-assisted development (Cha…

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## [John Whitney tribute](https://discourse.processing.org/t/john-whitney-tribute/47386)

<div class="topic-metadata">

**Author:** [@matheplica](https://discourse.processing.org/u/matheplica)\
**Replies:** 1\
**Last updated:** [October 17, 2025, 11:03am UTC](https://discourse.processing.org/t/john-whitney-tribute/47386 "2025-10-17T11:03:00Z")

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Hi, I coded the a part of John Whitney works : Matrix3. John was a pioneer of computer graphics experiments, he worked with first analog computer in 60’s, 70’s. You can find a lot of this work on youtube. This thre…

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## [Help with animating circles](https://discourse.processing.org/t/help-with-animating-circles/47346)

<div class="topic-metadata">

**Author:** [@AVREDDY](https://discourse.processing.org/u/AVREDDY)\
**Replies:** 2\
**Last updated:** [October 16, 2025, 8:42pm UTC](https://discourse.processing.org/t/help-with-animating-circles/47346 "2025-10-16T20:42:57Z")

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Hello. I am coming back to processing after so long. I am trying to make an animation based on circles interlocking to create patterns. How can I make this code more effective? I also want to slow down the frame rate. i…

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## [Error on atan() call](https://discourse.processing.org/t/error-on-atan-call/47373)

<div class="topic-metadata">

**Author:** [@Xero](https://discourse.processing.org/u/Xero)\
**Replies:** 2\
**Last updated:** [October 16, 2025, 8:33am UTC](https://discourse.processing.org/t/error-on-atan-call/47373 "2025-10-16T08:33:57Z")

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Having an issue, is this a bug? or am I doing something wrong? function setup() { createCanvas(400, 400); background(128); } function draw() { let a = cos(0.5); text(a.toString(), 200,200); a = atan(0.5); t…

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## [What does this error message mean?](https://discourse.processing.org/t/what-does-this-error-message-mean/47370)

<div class="topic-metadata">

**Author:** [@WillyGrz](https://discourse.processing.org/u/WillyGrz)\
**Replies:** 3\
**Last updated:** [October 15, 2025, 6:25pm UTC](https://discourse.processing.org/t/what-does-this-error-message-mean/47370 "2025-10-15T18:25:17Z")

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\< if (projXmove \>= (displayWidth/75)/sqrt(1+(projSlope)(projSlope))) { projXmove = (displayWidth/75)/sqrt(1+(projSlope)(projSlope)); } When I try to run this within my program I get the error message “The operator +…

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