# Processing

**URL:** https://discourse.processing.org/c/processing/6.md?no_subcategories=false&page=300

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

**Page:** 301

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## [Mojave opengl depreciated!](https://discourse.processing.org/t/mojave-opengl-depreciated/10936)

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**Author:** [@coco](https://discourse.processing.org/u/coco)\
**Replies:** 6\
**Last updated:** [May 9, 2019, 7:00pm UTC](https://discourse.processing.org/t/mojave-opengl-depreciated/10936 "2019-05-09T19:00:46Z")

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Hello, I just upgraded from 10.14.3 to 10.14.4 and opengl doesn’t work any more, in fact Mojave doesn’t support OpenGL any more !!! Is there some sort of workaround to make P3D work with Metal ? Any help would be greatly…

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## [Hosting processing sketches online without converting to js](https://discourse.processing.org/t/hosting-processing-sketches-online-without-converting-to-js/10953)

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**Author:** [@KeirMeDear](https://discourse.processing.org/u/KeirMeDear)\
**Replies:** 2\
**Last updated:** [May 9, 2019, 6:43pm UTC](https://discourse.processing.org/t/hosting-processing-sketches-online-without-converting-to-js/10953 "2019-05-09T18:43:15Z")

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Is there a website that lets you host processing sketches (made in Java) online without having to convert them in Javascript first (like openProcessing)? Many thanks!

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## [Can anyone help make my rain splash and puddle?](https://discourse.processing.org/t/can-anyone-help-make-my-rain-splash-and-puddle/10813)

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**Author:** [@1317009254](https://discourse.processing.org/u/1317009254)\
**Replies:** 5\
**Last updated:** [May 9, 2019, 4:56pm UTC](https://discourse.processing.org/t/can-anyone-help-make-my-rain-splash-and-puddle/10813 "2019-05-09T16:56:37Z")

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im new to coding and i cant quite figure it out. any sort of help would be awesome! :slight\_smile: int \[\] x = new int \[1000\]; float \[\] y = new float \[1000\]; float \[\] speed = new float \[1000\]; float \[\] size = new float \[…

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## [Image at angle from 2 vectors scaled and centered](https://discourse.processing.org/t/image-at-angle-from-2-vectors-scaled-and-centered/11070)

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**Author:** [@dimpapadop](https://discourse.processing.org/u/dimpapadop)\
**Replies:** 2\
**Last updated:** [May 9, 2019, 4:15pm UTC](https://discourse.processing.org/t/image-at-angle-from-2-vectors-scaled-and-centered/11070 "2019-05-09T16:15:42Z")

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hallo. I am trying to place an image (1000X1000px) scaled and centered between 2 vectors, and keep it always centered there no matter the angle. So far i have PVector a,b,c; PImage img1; void setup(){ size(400,400,…

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## [How to recieve hex data JPEG camera from Arduino and show image in Processing](https://discourse.processing.org/t/how-to-recieve-hex-data-jpeg-camera-from-arduino-and-show-image-in-processing/10351)

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**Author:** [@warayutsitha2](https://discourse.processing.org/u/warayutsitha2)\
**Replies:** 6\
**Last updated:** [May 9, 2019, 2:23pm UTC](https://discourse.processing.org/t/how-to-recieve-hex-data-jpeg-camera-from-arduino-and-show-image-in-processing/10351 "2019-05-09T14:23:38Z")

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Hello. I need some help about how to write a Processing code. I use JPEG camera module snapshot and sent data to output serial port and I want to write a Processing code to recieve this data to show image. Thank you. I…

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## [Setting speed and way of several samples](https://discourse.processing.org/t/setting-speed-and-way-of-several-samples/11035)

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**Author:** [@bking](https://discourse.processing.org/u/bking)\
**Replies:** 2\
**Last updated:** [May 9, 2019, 2:08pm UTC](https://discourse.processing.org/t/setting-speed-and-way-of-several-samples/11035 "2019-05-09T14:08:01Z")

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Hi, I would like to know if a program already exist to control the speed and way (backward/forward) of several sound sample (mp3) in order to play it as DJ could done with several turntable. My data of speed (positive …

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## [Controlling rotational motion in Processing](https://discourse.processing.org/t/controlling-rotational-motion-in-processing/10629)

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**Author:** [@Avatrin](https://discourse.processing.org/u/Avatrin)\
**Replies:** 2\
**Last updated:** [April 29, 2019, 11:02pm UTC](https://discourse.processing.org/t/controlling-rotational-motion-in-processing/10629 "2019-04-29T23:02:29Z")

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Hi I want to use Processing to make a few physics simulations. So, lets say I want to model the rotation of a box. However, instead of using the built in functions that allow me to rotate it around whichever axis I want…

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## [How to make my audio visualizer respond to microphone input instead?](https://discourse.processing.org/t/how-to-make-my-audio-visualizer-respond-to-microphone-input-instead/11039)

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**Author:** [@francium401](https://discourse.processing.org/u/francium401)\
**Replies:** 1\
**Last updated:** [May 9, 2019, 12:38pm UTC](https://discourse.processing.org/t/how-to-make-my-audio-visualizer-respond-to-microphone-input-instead/11039 "2019-05-09T12:38:02Z")

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I’ve been trying to use simple examples that have microphone responsiveness as a guide, but can’t seem to get anywhere without the visuals freezing/not appearing at all. I’d much appreciate some help. int radius = 200; …

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## [Buttons to save and open text file in processing 3](https://discourse.processing.org/t/buttons-to-save-and-open-text-file-in-processing-3/10991)

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**Author:** [@light](https://discourse.processing.org/u/light)\
**Replies:** 9\
**Last updated:** [May 9, 2019, 10:19am UTC](https://discourse.processing.org/t/buttons-to-save-and-open-text-file-in-processing-3/10991 "2019-05-09T10:19:48Z")

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hello guys i am a beginner in processing 3 and i want to do some complex programming need your help i want to create 2 buttons 1. which can save the data in text file and 2.which can open that text file in notepad. i a…

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## [Write and read to Serial port at the same time](https://discourse.processing.org/t/write-and-read-to-serial-port-at-the-same-time/11056)

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**Author:** [@anikolenko](https://discourse.processing.org/u/anikolenko)\
**Replies:** 6\
**Last updated:** [May 9, 2019, 10:05am UTC](https://discourse.processing.org/t/write-and-read-to-serial-port-at-the-same-time/11056 "2019-05-09T10:05:53Z")

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Hi guys, I’m trying to understand how the Serial port works. Can anyone answer me why the following code does not work? import processing.serial.\*; Serial port; void setup() { port = new Serial(this, "COM1", 9600);…

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## [Moving a molecule up and down](https://discourse.processing.org/t/moving-a-molecule-up-and-down/11013)

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**Author:** [@CsabaAlbert](https://discourse.processing.org/u/CsabaAlbert)\
**Replies:** 12\
**Last updated:** [May 9, 2019, 9:18am UTC](https://discourse.processing.org/t/moving-a-molecule-up-and-down/11013 "2019-05-09T09:18:51Z")

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I have this water molecule and I wan to move it up and down whit the arow keys. Can someone help me? THX!! Here is the code! import peasy.\*; PeasyCam cam; Atom oxigen; Atom hidrogen1; void setup(){ size(600,600,P3D); …

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## [Quiz with multiples choice - Beginner level](https://discourse.processing.org/t/quiz-with-multiples-choice-beginner-level/10258)

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**Author:** [@EverybodyEthan](https://discourse.processing.org/u/EverybodyEthan)\
**Replies:** 26\
**Last updated:** [May 9, 2019, 8:14am UTC](https://discourse.processing.org/t/quiz-with-multiples-choice-beginner-level/10258 "2019-05-09T08:14:46Z")

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Hi buddies ! :smiley: I’m looking about how to make a quiz, I have started few test with a part of success. However I’d like to make a quiz with multiples choices. So I’d like to give him ( the user ) three choices i…

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## [Creating a lot of variables](https://discourse.processing.org/t/creating-a-lot-of-variables/11052)

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**Author:** [@crab](https://discourse.processing.org/u/crab)\
**Replies:** 2\
**Last updated:** [May 9, 2019, 8:13am UTC](https://discourse.processing.org/t/creating-a-lot-of-variables/11052 "2019-05-09T08:13:38Z")

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Hi, I need to create a lot of variables with the same name, but with different numbers after the name, like that(obviously doesn’t work): void setup(){ for(int i = 10;i\>=0;i--){ int "var" + char(i); } } What c…

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## [Retrieving the current rotation of a custom PShape](https://discourse.processing.org/t/retrieving-the-current-rotation-of-a-custom-pshape/11042)

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**Author:** [@F53](https://discourse.processing.org/u/F53)\
**Replies:** 4\
**Last updated:** [May 9, 2019, 2:08am UTC](https://discourse.processing.org/t/retrieving-the-current-rotation-of-a-custom-pshape/11042 "2019-05-09T02:08:24Z")

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I am teaching myself to code through coding games, I am currently working on asteroids. The player is rendered as a custom PShape, and is rotated with ship.rotate(RotVel); RotVel is a float that is modified by the A an…

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## [Can one user library use another?](https://discourse.processing.org/t/can-one-user-library-use-another/10949)

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**Author:** [@jtk](https://discourse.processing.org/u/jtk)\
**Replies:** 9\
**Last updated:** [May 8, 2019, 8:55pm UTC](https://discourse.processing.org/t/can-one-user-library-use-another/10949 "2019-05-08T20:55:49Z")

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I am developing a library “muse” that uses the “oscP5” library. If I put my jar file in ~/Documents/Processing/libraries/muse/library/muse.jar, I am able to see the library in Processing. However, the dependent library…

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## [Could not run the sketch](https://discourse.processing.org/t/could-not-run-the-sketch/11040)

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**Author:** [@DerekCresswell](https://discourse.processing.org/u/DerekCresswell)\
**Replies:** 3\
**Last updated:** [May 8, 2019, 6:51pm UTC](https://discourse.processing.org/t/could-not-run-the-sketch/11040 "2019-05-08T18:51:02Z")

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Could not run the sketch. Usage: PApplet \[options\] \[sketch args\] See the Javadoc for PApplet for an explanation. Could not run the sketch (Target VM failed to initialize). For more information, read revisions.txt an…

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## [Bubble shooting game](https://discourse.processing.org/t/bubble-shooting-game/10919)

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**Author:** [@yoyo18](https://discourse.processing.org/u/yoyo18)\
**Replies:** 27\
**Last updated:** [May 8, 2019, 5:00pm UTC](https://discourse.processing.org/t/bubble-shooting-game/10919 "2019-05-08T17:00:16Z")

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hello i start to make code for a game the rules was in 3lines we shoot bubles blue or red and when they meet they dead i need help for the meet code(a friend try to do something in my code as you can see and to do a ran…

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## [Windowless interfaces in Processing?](https://discourse.processing.org/t/windowless-interfaces-in-processing/10947)

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**Author:** [@cthorne](https://discourse.processing.org/u/cthorne)\
**Replies:** 2\
**Last updated:** [May 8, 2019, 3:20pm UTC](https://discourse.processing.org/t/windowless-interfaces-in-processing/10947 "2019-05-08T15:20:27Z")

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Greetings. I need to develop some cross platform, windowless user interfaces and I’m trying to decide what language to develop them in. (by windowless I mean with no window frame and a transparent background) My questio…

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## [Marker position on screen](https://discourse.processing.org/t/marker-position-on-screen/10871)

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**Author:** [@sandermoonen](https://discourse.processing.org/u/sandermoonen)\
**Replies:** 3\
**Last updated:** [May 8, 2019, 2:44pm UTC](https://discourse.processing.org/t/marker-position-on-screen/10871 "2019-05-08T14:44:51Z")

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Hi there! I’m working on a project for my studies and am in need to find a way to detect the position of a certain marker (QR/Aruco/whatever) in the field of my webcam. It doesn’t need to be super specific, but I basical…

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## [Text motion blur effect](https://discourse.processing.org/t/text-motion-blur-effect/10804)

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**Author:** [@smekis](https://discourse.processing.org/u/smekis)\
**Replies:** 13\
**Last updated:** [May 8, 2019, 1:39pm UTC](https://discourse.processing.org/t/text-motion-blur-effect/10804 "2019-05-08T13:39:38Z")

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Hello We are two design students who are currently working extensively with typography in motion. Right now we have developed a font that we will present on a website that we are about to put together. Our vision is to …

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## [How to make an interactive cloth (wall) simulation](https://discourse.processing.org/t/how-to-make-an-interactive-cloth-wall-simulation/10957)

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**Author:** [@yasoob](https://discourse.processing.org/u/yasoob)\
**Replies:** 4\
**Last updated:** [May 8, 2019, 1:20pm UTC](https://discourse.processing.org/t/how-to-make-an-interactive-cloth-wall-simulation/10957 "2019-05-08T13:20:58Z")

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Hi everyone! I am just starting out with interactive art. I have seen a couple of projects made using processing and openframeworks which have an interactive cloth (wall) projected on a screen which the users can interac…

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## [Saving a variable](https://discourse.processing.org/t/saving-a-variable/11025)

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**Author:** [@jensemand](https://discourse.processing.org/u/jensemand)\
**Replies:** 3\
**Last updated:** [May 8, 2019, 12:55pm UTC](https://discourse.processing.org/t/saving-a-variable/11025 "2019-05-08T12:55:58Z")

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Hi i want to save a variable inside draw without it changes its value. How do I do that?

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## [Interaction + Processing question?](https://discourse.processing.org/t/interaction-processing-question/10852)

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**Author:** [@crescent13](https://discourse.processing.org/u/crescent13)\
**Replies:** 4\
**Last updated:** [May 8, 2019, 6:29am UTC](https://discourse.processing.org/t/interaction-processing-question/10852 "2019-05-08T06:29:06Z")

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Hi! I’m new to processing and I’m working on a Kinect project. I’m trying to make my interactions with mouseX & Y first, so that I can then translate it over to the Kinect part. I want to make my fish swim away from the…

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## [Problem with serial.clear() in handshake procedure](https://discourse.processing.org/t/problem-with-serial-clear-in-handshake-procedure/11005)

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**Author:** [@wheezardth](https://discourse.processing.org/u/wheezardth)\
**Replies:** 1\
**Last updated:** [May 8, 2019, 1:44am UTC](https://discourse.processing.org/t/problem-with-serial-clear-in-handshake-procedure/11005 "2019-05-08T01:44:10Z")

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Hi everybody! I recently made a front end for a few maintenance functions embedded in my Teensy (Adruino) project and I attempted to implement a Serial port autodetection by making a simple serial handshake procedure. …

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## [Can't get my object to move around axis](https://discourse.processing.org/t/cant-get-my-object-to-move-around-axis/10990)

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**Author:** [@Shemozzles](https://discourse.processing.org/u/Shemozzles)\
**Replies:** 11\
**Last updated:** [May 8, 2019, 1:06am UTC](https://discourse.processing.org/t/cant-get-my-object-to-move-around-axis/10990 "2019-05-08T01:06:12Z")

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Hey guys, I have this piece of code where I am trying to move a spaceship around the 0 axis. It also moves up and down. However, the further I move it up, the greater the turning circle is. I have tried various methods …

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## [Processing serial.available issue](https://discourse.processing.org/t/processing-serial-available-issue/10930)

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**Author:** [@Acrus](https://discourse.processing.org/u/Acrus)\
**Replies:** 5\
**Last updated:** [May 7, 2019, 11:20pm UTC](https://discourse.processing.org/t/processing-serial-available-issue/10930 "2019-05-07T23:20:27Z")

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Hi to everyone, First of all, I’m developing a simple program in processing that receives data via serial, from an arduino connected to a sensor. Once the data arrives in processing, is uploaded to a MySQL database. Bu…

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## [Help with a coding Problem for Computer Science(partially filled Arrays)](https://discourse.processing.org/t/help-with-a-coding-problem-for-computer-science-partially-filled-arrays/11018)

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**Author:** [@s21ebutler](https://discourse.processing.org/u/s21ebutler)\
**Replies:** 1\
**Last updated:** [May 7, 2019, 10:56pm UTC](https://discourse.processing.org/t/help-with-a-coding-problem-for-computer-science-partially-filled-arrays/11018 "2019-05-07T22:56:03Z")

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Can somebody do the following problem for me because I am completely stuck right now? I just started programming this year. 1)Write a program that creates an ellipse every time you click the mouse, at the mouse’s locati…

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## [Why my letters don't keep their shapes?!](https://discourse.processing.org/t/why-my-letters-dont-keep-their-shapes/10245)

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**Author:** [@lolonulu](https://discourse.processing.org/u/lolonulu)\
**Replies:** 21\
**Last updated:** [May 7, 2019, 8:19pm UTC](https://discourse.processing.org/t/why-my-letters-dont-keep-their-shapes/10245 "2019-05-07T20:19:14Z")

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Hello, I managed to deform some letters and to scale them reacting to a sound file using Geomerative and minim libraries, but how can I keep the letters deformed?! Why once the sound position is 100px away the points g…

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## [Advice on optimal way to redraw datapoints](https://discourse.processing.org/t/advice-on-optimal-way-to-redraw-datapoints/10954)

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**Author:** [@kikisarp](https://discourse.processing.org/u/kikisarp)\
**Replies:** 4\
**Last updated:** [May 7, 2019, 8:07pm UTC](https://discourse.processing.org/t/advice-on-optimal-way-to-redraw-datapoints/10954 "2019-05-07T20:07:22Z")

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Hi, I am working on a 3D scan and mapping project and I’m able to scan a specific environment and redraw it in a virtual map but my map is lacking a bit because I cant get nearly as many datapoints as I want to and this …

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## [How to generate report?](https://discourse.processing.org/t/how-to-generate-report/10938)

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**Author:** [@68jai90](https://discourse.processing.org/u/68jai90)\
**Replies:** 4\
**Last updated:** [May 7, 2019, 5:04pm UTC](https://discourse.processing.org/t/how-to-generate-report/10938 "2019-05-07T17:04:41Z")

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Hi everyone, I would like to know how to generate report using processing software based on values read from arduino. The requirement for the report is to log every 5 minutes for 8 hours. and create new report file aft…

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