# Processing

**URL:** https://discourse.processing.org/c/processing/6.md?page=132

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

**Page:** 133

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## [Simple java TTS (text-to-speech) library / tool](https://discourse.processing.org/t/simple-java-tts-text-to-speech-library-tool/29986)

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**Author:** [@CodeMasterX](https://discourse.processing.org/u/CodeMasterX)\
**Replies:** 1\
**Last updated:** [May 9, 2021, 2:35pm UTC](https://discourse.processing.org/t/simple-java-tts-text-to-speech-library-tool/29986 "2021-05-09T14:35:37Z")

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Hi! I recently received a request for a text to speech program with a pause button. Is there any java library that has simple syntax and sounds understandable? Thank you.

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## [Display PImage array elements in specific locations](https://discourse.processing.org/t/display-pimage-array-elements-in-specific-locations/29979)

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**Author:** [@12345](https://discourse.processing.org/u/12345)\
**Replies:** 2\
**Last updated:** [May 9, 2021, 10:20am UTC](https://discourse.processing.org/t/display-pimage-array-elements-in-specific-locations/29979 "2021-05-09T10:20:36Z")

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Hi! I’ve written a sketch that loads one PImage then slices this image into 16 equal (200px x 200px) “slices”. I have then created an array of PImage “slices” with 16 slots. I have written a for loop to look through the …

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## [Save mouse coordinates and draw arrows with it](https://discourse.processing.org/t/save-mouse-coordinates-and-draw-arrows-with-it/29982)

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**Author:** [@elenanito](https://discourse.processing.org/u/elenanito)\
**Replies:** 2\
**Last updated:** [May 9, 2021, 12:26pm UTC](https://discourse.processing.org/t/save-mouse-coordinates-and-draw-arrows-with-it/29982 "2021-05-09T12:26:06Z")

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Im working on a program that draws arrows with the mouse, so for the tip of the arrow to be pointing in the right direction Im using PVector (one for the base and one for the tip of the arrow). I made it work so you can …

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## [Making random only appear once](https://discourse.processing.org/t/making-random-only-appear-once/29783)

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**Author:** [@yagirl\_belle](https://discourse.processing.org/u/yagirl_belle)\
**Replies:** 5\
**Last updated:** [May 9, 2021, 1:47am UTC](https://discourse.processing.org/t/making-random-only-appear-once/29783 "2021-05-09T01:47:20Z")

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PLEASE DO NOT RUN THIS CODE IF YOU HAVE EPILEPSY So I was able to create randomly generated green colours for a golf course, however it is consistently running and I don’t know what kind of ‘if’ statement I should be pu…

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## [When i build this application it just makes a blank grey window](https://discourse.processing.org/t/when-i-build-this-application-it-just-makes-a-blank-grey-window/28642)

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**Author:** [@canslp](https://discourse.processing.org/u/canslp)\
**Replies:** 5\
**Last updated:** [May 8, 2021, 10:17pm UTC](https://discourse.processing.org/t/when-i-build-this-application-it-just-makes-a-blank-grey-window/28642 "2021-05-08T22:17:46Z")

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okay i’m sure this is a very common problem but i haven’t found anything helpful, i’m just getting a totally blank grey sketch window when building a processing app for mac. this is the first time i’ve had this error, ev…

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## [While loop is not working in processing](https://discourse.processing.org/t/while-loop-is-not-working-in-processing/29954)

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**Author:** [@nothingelse](https://discourse.processing.org/u/nothingelse)\
**Replies:** 8\
**Last updated:** [May 8, 2021, 6:09pm UTC](https://discourse.processing.org/t/while-loop-is-not-working-in-processing/29954 "2021-05-08T18:09:32Z")

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I am beginner in processing, just started few days ago. I am learning while loop now but when i run the program, while loop does not seem to be working. I tried so much but still don’t know what problem is occuring floa…

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## [Why does drawing an image for the first time slow down the sketch](https://discourse.processing.org/t/why-does-drawing-an-image-for-the-first-time-slow-down-the-sketch/29909)

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**Author:** [@s31](https://discourse.processing.org/u/s31)\
**Replies:** 10\
**Last updated:** [May 8, 2021, 1:38pm UTC](https://discourse.processing.org/t/why-does-drawing-an-image-for-the-first-time-slow-down-the-sketch/29909 "2021-05-08T13:38:35Z")

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Every time my code uses a new image, my sketch slows down considerably and I don’t understand why. I’m loading all of my images in the setup() function like everyone says I should, so I don’t understand why this is happe…

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## [Create Visual Scripting Tool / Mode](https://discourse.processing.org/t/create-visual-scripting-tool-mode/29958)

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**Author:** [@Flolo](https://discourse.processing.org/u/Flolo)\
**Replies:** 1\
**Last updated:** [May 8, 2021, 10:45am UTC](https://discourse.processing.org/t/create-visual-scripting-tool-mode/29958 "2021-05-08T10:45:28Z")

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Hey, I recently watched a few videos about Unreal Engines Blueprint (Visual Scripting Language) and wondered if I could program a mode / tool for processing (JAVA) with which you can visual script. I would like to do it…

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## [Slow down object's speed](https://discourse.processing.org/t/slow-down-objects-speed/29937)

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**Author:** [@akira](https://discourse.processing.org/u/akira)\
**Replies:** 11\
**Last updated:** [May 8, 2021, 7:13am UTC](https://discourse.processing.org/t/slow-down-objects-speed/29937 "2021-05-08T07:13:38Z")

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Hello! I’m a bit stuck with my conditional statement for this basic program I’m working on. Two objects at different y coordinates start moving towards the width of the screen at varying speeds. When they approach each o…

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## [Reflect color of one object to another object through cursor position](https://discourse.processing.org/t/reflect-color-of-one-object-to-another-object-through-cursor-position/29888)

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**Author:** [@joelm03](https://discourse.processing.org/u/joelm03)\
**Replies:** 13\
**Last updated:** [May 7, 2021, 2:49pm UTC](https://discourse.processing.org/t/reflect-color-of-one-object-to-another-object-through-cursor-position/29888 "2021-05-07T14:49:27Z")

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I am trying to have a gradient RGB rectangle to reflect each color on a bigger rectangle depending on the mouse’s position. I was able to come up with this: void draw() { noStroke(); for (i = 0;i \< width; i++) { fil…

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## [Function parameters causing unwanted animation](https://discourse.processing.org/t/function-parameters-causing-unwanted-animation/29940)

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**Author:** [@theta](https://discourse.processing.org/u/theta)\
**Replies:** 1\
**Last updated:** [May 7, 2021, 2:38pm UTC](https://discourse.processing.org/t/function-parameters-causing-unwanted-animation/29940 "2021-05-07T14:38:48Z")

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Hey everyone. I started exploring functions with parameters and can’t for the life of me figure out why the example below is animating. Waves w1 = new Waves(); float amp = 100; float phase = 1; float freq = 100; float …

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## [Question: Running multiple draw loops simultaneously in a grid](https://discourse.processing.org/t/question-running-multiple-draw-loops-simultaneously-in-a-grid/29927)

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**Author:** [@markcburke](https://discourse.processing.org/u/markcburke)\
**Replies:** 5\
**Last updated:** [May 7, 2021, 1:29pm UTC](https://discourse.processing.org/t/question-running-multiple-draw-loops-simultaneously-in-a-grid/29927 "2021-05-07T13:29:54Z")

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I’m quite new to processing and am interested in using it to generate grids of semi-randomized objects of various kinds. I’ve managed to produce code that can generate the kind of objects that I want, but I don’t know ho…

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## [AudioIn shared access](https://discourse.processing.org/t/audioin-shared-access/29935)

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**Author:** [@ianef](https://discourse.processing.org/u/ianef)\
**Replies:** 2\
**Last updated:** [May 7, 2021, 11:41am UTC](https://discourse.processing.org/t/audioin-shared-access/29935 "2021-05-07T11:41:13Z")

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First off I’d like to say I’m new to Processing and it’s just GREAT! :grinning: I’m trying to work out if it’s possible to have shared access to an audio input device. Windows certainly supports this but the javax.sound…

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## [Get all children from SVG](https://discourse.processing.org/t/get-all-children-from-svg/29932)

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**Author:** [@thesandrobrito](https://discourse.processing.org/u/thesandrobrito)\
**Replies:** 8\
**Last updated:** [May 7, 2021, 11:36am UTC](https://discourse.processing.org/t/get-all-children-from-svg/29932 "2021-05-07T11:36:32Z")

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Hi Everyone. I came back to processing after a few years of not coding anything and I am struggling with something I think I could do before. I’m looking to draw SVGs with the flexibility of changing the colours of the…

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## [Reading barcodes](https://discourse.processing.org/t/reading-barcodes/29868)

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**Author:** [@Th3cG](https://discourse.processing.org/u/Th3cG)\
**Replies:** 28\
**Last updated:** [May 7, 2021, 6:44am UTC](https://discourse.processing.org/t/reading-barcodes/29868 "2021-05-07T06:44:28Z")

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Ciao! I’d like to scan some UPC barcodes to get the product number, and after some research I unsuccessfully used the following libraries Zxing for Processing (unable to load some plugins for gstreamer 1.0) and QRCode…

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## [Issue in ellipse collision](https://discourse.processing.org/t/issue-in-ellipse-collision/29923)

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**Author:** [@helloscoopz](https://discourse.processing.org/u/helloscoopz)\
**Replies:** 6\
**Last updated:** [May 6, 2021, 9:28pm UTC](https://discourse.processing.org/t/issue-in-ellipse-collision/29923 "2021-05-06T21:28:32Z")

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CowDemo.pde ArrayList\<Cow\> particles; void setup() { frameRate(30); //size(1000, 800); size(300, 300); particles = new ArrayList\<Cow\>(); for (int i = 0; i \<= 1; i++) { particles.add(new Cow()); } } voi…

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## [Hired work for - 10K programmatically generated images](https://discourse.processing.org/t/hired-work-for-10k-programmatically-generated-images/29903)

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**Author:** [@MasterBuZ](https://discourse.processing.org/u/MasterBuZ)\
**Replies:** 21\
**Last updated:** [May 6, 2021, 4:10pm UTC](https://discourse.processing.org/t/hired-work-for-10k-programmatically-generated-images/29903 "2021-05-06T16:10:19Z")

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please format code with \</\> button \* homework policy \* asking questions Hi Everyone, I’m not an IT guys so I hope what I’m trying to explain makes sense. I’m looking to generate 10K images from 170 assets to create …

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## [Multiple Windows, closing and interactions](https://discourse.processing.org/t/multiple-windows-closing-and-interactions/25693)

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**Author:** [@MiguelSanches](https://discourse.processing.org/u/MiguelSanches)\
**Replies:** 1\
**Last updated:** [May 6, 2021, 1:25pm UTC](https://discourse.processing.org/t/multiple-windows-closing-and-interactions/25693 "2021-05-06T13:25:12Z")

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Hi, For the last days, I have been playing with PApplet’s and creating multiple windows. After some long research I found this post on the forum (https://discourse.processing.org/t/closing-a-second-window/381/10) Now,…

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## [Rotating a 2D PImage within a 3D P3D environment?](https://discourse.processing.org/t/rotating-a-2d-pimage-within-a-3d-p3d-environment/29874)

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**Author:** [@Chubbulus](https://discourse.processing.org/u/Chubbulus)\
**Replies:** 13\
**Last updated:** [May 6, 2021, 1:05pm UTC](https://discourse.processing.org/t/rotating-a-2d-pimage-within-a-3d-p3d-environment/29874 "2021-05-06T13:05:28Z")

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Hi. I’m wondering how I could get the blue square shown floating within the image to instead lay horrizontally across the center of the skybox sphere rather than vertically as it is now. Any help?

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## [Skia Graphics as background](https://discourse.processing.org/t/skia-graphics-as-background/29846)

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**Author:** [@matheplica](https://discourse.processing.org/u/matheplica)\
**Replies:** 4\
**Last updated:** [May 6, 2021, 11:03am UTC](https://discourse.processing.org/t/skia-graphics-as-background/29846 "2021-05-06T11:03:35Z")

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Hi, I’m trying to use skiaGraphics on linux as background. See this post for more explanation on skia : skia Discussion In my code, I must choose : even skia works and PGraphics not or vice versa. import micycle.proce…

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## [Draw a circle segment](https://discourse.processing.org/t/draw-a-circle-segment/29900)

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**Author:** [@SaftigMelo](https://discourse.processing.org/u/SaftigMelo)\
**Replies:** 4\
**Last updated:** [May 6, 2021, 9:55am UTC](https://discourse.processing.org/t/draw-a-circle-segment/29900 "2021-05-06T09:55:43Z")

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Hello, I am currently trying to draw a sailboat with Processing in Java. I'm failing on the bottom part right now. I was thinking that I can use a circle segment for it. I wanted to use the arc() method for this only…

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## [Can We Do This Together? (Two robots in a bar)](https://discourse.processing.org/t/can-we-do-this-together-two-robots-in-a-bar/29852)

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**Author:** [@rst96](https://discourse.processing.org/u/rst96)\
**Replies:** 4\
**Last updated:** [May 5, 2021, 9:34pm UTC](https://discourse.processing.org/t/can-we-do-this-together-two-robots-in-a-bar/29852 "2021-05-05T21:34:42Z")

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I’m newbie on processing 3. I decided create a scene with experienced people (so you). Can we do this task together step-by-step? If you help me, I will glad. In 3D animation. Two guys drink coffee 1 table, 2 chairs, 2…

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## [AudioIn only returns noise (Windows 10)](https://discourse.processing.org/t/audioin-only-returns-noise-windows-10/29892)

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**Author:** [@NumericPrime](https://discourse.processing.org/u/NumericPrime)\
**Replies:** 6\
**Last updated:** [May 5, 2021, 7:37pm UTC](https://discourse.processing.org/t/audioin-only-returns-noise-windows-10/29892 "2021-05-05T19:37:04Z")

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I wanted to try out the FFT class in processing. The example code did not work, as it wasn’t showing any result. A slight variation showed that the AudioIn did in fact get Information also I was checking the amplitude.…

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## [Map texture onto PATH shape](https://discourse.processing.org/t/map-texture-onto-path-shape/29891)

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**Author:** [@Frinkel](https://discourse.processing.org/u/Frinkel)\
**Replies:** 1\
**Last updated:** [May 5, 2021, 4:17pm UTC](https://discourse.processing.org/t/map-texture-onto-path-shape/29891 "2021-05-05T16:17:58Z")

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Hello, I have a shape, which has a texture applied to it, but I would like the shape to be of type PATH, since this will allow the use of the contains(x,y) method. The problem is, if I change the shape type to PATH, no …

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## [Some help with rendering a 2D onject and a 3D object at the same time in P3D?](https://discourse.processing.org/t/some-help-with-rendering-a-2d-onject-and-a-3d-object-at-the-same-time-in-p3d/29880)

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**Author:** [@Chubbulus](https://discourse.processing.org/u/Chubbulus)\
**Replies:** 3\
**Last updated:** [May 5, 2021, 2:48pm UTC](https://discourse.processing.org/t/some-help-with-rendering-a-2d-onject-and-a-3d-object-at-the-same-time-in-p3d/29880 "2021-05-05T14:48:47Z")

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Hi. So I have a scene rendered, but I can’t seem to have the sea and the arwing ship model rendered at the same time? The arwing model (on the right) is a 3D .obj model exported from Blender. The sea is a 2D PImage (on …

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## [Map image onto shape](https://discourse.processing.org/t/map-image-onto-shape/29879)

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**Author:** [@Frinkel](https://discourse.processing.org/u/Frinkel)\
**Replies:** 2\
**Last updated:** [May 5, 2021, 1:15pm UTC](https://discourse.processing.org/t/map-image-onto-shape/29879 "2021-05-05T13:15:46Z")

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Hi I’m working with the processing library for Java, and are having some issues giving my shapes a texture, right now, the texture isn’t showing. I hope some of you guys might have an idea, of what I’m doing wrong. IDE …

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## [How can I implement voice recognition in JAVA mode?](https://discourse.processing.org/t/how-can-i-implement-voice-recognition-in-java-mode/29713)

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**Author:** [@GWAK](https://discourse.processing.org/u/GWAK)\
**Replies:** 19\
**Last updated:** [May 5, 2021, 9:43am UTC](https://discourse.processing.org/t/how-can-i-implement-voice-recognition-in-java-mode/29713 "2021-05-05T09:43:24Z")

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please format code with \</\> button \* homework policy \* asking questions How can I implement voice recognition in JAVA mode? import com.getflourish.stt.\*; import ddf.minim.\*; import javax.sound.sampled.\*; STT …

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## [Building a tower out of squares in Processing](https://discourse.processing.org/t/building-a-tower-out-of-squares-in-processing/29863)

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**Author:** [@jakob.timo](https://discourse.processing.org/u/jakob.timo)\
**Replies:** 9\
**Last updated:** [May 5, 2021, 2:18am UTC](https://discourse.processing.org/t/building-a-tower-out-of-squares-in-processing/29863 "2021-05-05T02:18:50Z")

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Hello there! I need some help. I want to build a tower made out of squares. The should be made out of 10 squares and they should alternate between red and blue sqares. I have no plan where I even should start. Already…

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## [Bars:Beats:Sixteenths](https://discourse.processing.org/t/barssixteenths/29821)

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**Author:** [@UnderratedGuitarGUY](https://discourse.processing.org/u/UnderratedGuitarGUY)\
**Replies:** 4\
**Last updated:** [May 4, 2021, 11:16pm UTC](https://discourse.processing.org/t/barssixteenths/29821 "2021-05-04T23:16:45Z")

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please format code with \</\> button \* homework policy \* asking questions Hey, I’ve been working through a javascript beginners guide recently and I was wondering whether anyone could help me out with two conversion qu…

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## [Nodes System coding in Processing](https://discourse.processing.org/t/nodes-system-coding-in-processing/29736)

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**Author:** [@PokeAvi](https://discourse.processing.org/u/PokeAvi)\
**Replies:** 5\
**Last updated:** [May 4, 2021, 11:05pm UTC](https://discourse.processing.org/t/nodes-system-coding-in-processing/29736 "2021-05-04T23:05:41Z")

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Hello world! I am developing a school project that asks me to implement a node system that can be used in the production of design objects. It has to be a functional application in some field of design (product, archite…

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