# Latest

**URL:** https://discourse.processing.org/latest.md?no_subcategories=false&page=508

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

**Page:** 509

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## [Placement of sliders outside canvas](https://discourse.processing.org/t/placement-of-sliders-outside-canvas/9631)

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**Author:** [@mpsteenstrup](https://discourse.processing.org/u/mpsteenstrup)\
**Replies:** 8\
**Last updated:** [March 27, 2019, 9:04am UTC](https://discourse.processing.org/t/placement-of-sliders-outside-canvas/9631 "2019-03-27T09:04:53Z")

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Hi i am trying to place sliders directly under the canvas, but other text added to html keep getting in between. Does anyone have a solution to keep the sliders and buttons next to the canvas? the problem is visible her…

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## [Problems with framerate and loading pictures](https://discourse.processing.org/t/problems-with-framerate-and-loading-pictures/9670)

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**Author:** [@jensemand](https://discourse.processing.org/u/jensemand)\
**Replies:** 5\
**Last updated:** [March 27, 2019, 9:05am UTC](https://discourse.processing.org/t/problems-with-framerate-and-loading-pictures/9670 "2019-03-27T09:05:33Z")

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Hi I am trying to create a game called “Undertale” as a project at my school however my framerate drops every time I load a picture in draw. Here is a part of my code: PImage img; PImage img2; void setup() { fullScree…

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## [How to make ellipses on the screen](https://discourse.processing.org/t/how-to-make-ellipses-on-the-screen/9669)

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**Author:** [@Robol](https://discourse.processing.org/u/Robol)\
**Replies:** 2\
**Last updated:** [March 27, 2019, 8:20am UTC](https://discourse.processing.org/t/how-to-make-ellipses-on-the-screen/9669 "2019-03-27T08:20:11Z")

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So I started learning processing about 3 days ago, and I realy enjoyed what the program can do so far I know. But this morning I started working with arrays and objects and I couldnt figure out why my code wasnt working.…

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## [mouseClicked new sketch](https://discourse.processing.org/t/mouseclicked-new-sketch/9616)

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**Author:** [@nothingnew](https://discourse.processing.org/u/nothingnew)\
**Replies:** 3\
**Last updated:** [March 27, 2019, 6:09am UTC](https://discourse.processing.org/t/mouseclicked-new-sketch/9616 "2019-03-27T06:09:51Z")

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Hi, I want to make my code when mouse is clicked it can open 2nd sketch. right now it only appears when I click and released my mouse. ( i know it is because it is in void draw) I want it to be hold the 2nd sketch and …

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## [Attractor / Flow Fields - Bezier Line Drawing Echo/Depth Effect](https://discourse.processing.org/t/attractor-flow-fields-bezier-line-drawing-echo-depth-effect/9598)

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**Author:** [@arvind](https://discourse.processing.org/u/arvind)\
**Replies:** 4\
**Last updated:** [March 27, 2019, 12:34am UTC](https://discourse.processing.org/t/attractor-flow-fields-bezier-line-drawing-echo-depth-effect/9598 "2019-03-27T00:34:29Z")

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Hello! Does anyone know how to create the imagery used in this attractor/flow field Processing animation? It looks as though it is bezier lines but I’m trying to understand the process that …

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## [What is the use of int()?](https://discourse.processing.org/t/what-is-the-use-of-int/9628)

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**Author:** [@L.L](https://discourse.processing.org/u/L.L)\
**Replies:** 8\
**Last updated:** [March 27, 2019, 12:24am UTC](https://discourse.processing.org/t/what-is-the-use-of-int/9628 "2019-03-27T00:24:30Z")

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Hello guys. I just started to learn to code in Processing. Though I’m finding it hard to understand the code int() (yes the one with the parenthesis). What it is for? Why do we need to use this code? And in what situatio…

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## [Multiple Key Inputs](https://discourse.processing.org/t/multiple-key-inputs/9662)

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**Author:** [@Samira](https://discourse.processing.org/u/Samira)\
**Replies:** 3\
**Last updated:** [March 27, 2019, 12:10am UTC](https://discourse.processing.org/t/multiple-key-inputs/9662 "2019-03-27T00:10:22Z")

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I’m trying to create a game where two people move at once. I’ve realised that you can’t have more than one key input at a time which makes my idea impossible. I was wondering if there was a way where I could have more th…

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## [GSOC 2019: Regarding p5.js Internationalization improvements](https://discourse.processing.org/t/gsoc-2019-regarding-p5-js-internationalization-improvements/9607)

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**Author:** [@tianshuai](https://discourse.processing.org/u/tianshuai)\
**Replies:** 1\
**Last updated:** [March 26, 2019, 7:53pm UTC](https://discourse.processing.org/t/gsoc-2019-regarding-p5-js-internationalization-improvements/9607 "2019-03-26T19:53:36Z")

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Hello, This is Tianshuai from Harbin Institute of Technology, China. I’m currently pursuing Software Engineering and looking forward to contributing to Processing during the summer of code. After looking at the project …

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## [Text() don't recognize \\t tabulator](https://discourse.processing.org/t/text-dont-recognize-t-tabulator/9572)

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**Author:** [@Santy](https://discourse.processing.org/u/Santy)\
**Replies:** 13\
**Last updated:** [March 26, 2019, 5:18pm UTC](https://discourse.processing.org/t/text-dont-recognize-t-tabulator/9572 "2019-03-26T17:18:48Z")

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Hi friends, I’ve a problem with the tab… the function text() doesn’t recognize \\t while the funcion print() if it does. you can see a simple code: String datos\[\]=new String\[10\]; int sep=15; datos=loadStrings("Datos.t…

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## [Joystick math assistance needed](https://discourse.processing.org/t/joystick-math-assistance-needed/9507)

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**Author:** [@alan856](https://discourse.processing.org/u/alan856)\
**Replies:** 10\
**Last updated:** [March 26, 2019, 1:47pm UTC](https://discourse.processing.org/t/joystick-math-assistance-needed/9507 "2019-03-26T13:47:49Z")

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Greets to all! I am replacing a Logitech 3D Pro joystick (which was working fine with Game Control Plus) with a custom stick (actually an Navy joystick of amazing build-quality!). Prob is with GCP the stick returned va…

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## [Create input accept numbers only](https://discourse.processing.org/t/create-input-accept-numbers-only/9624)

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**Author:** [@d0nk](https://discourse.processing.org/u/d0nk)\
**Replies:** 2\
**Last updated:** [March 26, 2019, 10:52am UTC](https://discourse.processing.org/t/create-input-accept-numbers-only/9624 "2019-03-26T10:52:08Z")

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Hello! I am new to P5js, trying to work with DOM library to accept number as user input. Is there a way to restrict the input box to accept numbers only as input?

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## [VR Mode: text() causes OpenGL error](https://discourse.processing.org/t/vr-mode-text-causes-opengl-error/9593)

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**Author:** [@AndreaRibo](https://discourse.processing.org/u/AndreaRibo)\
**Replies:** 1\
**Last updated:** [March 26, 2019, 7:22am UTC](https://discourse.processing.org/t/vr-mode-text-causes-opengl-error/9593 "2019-03-26T07:22:23Z")

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While using the VR mode with the Processing-Android, I need to display a text. There are no problems if I just use the text function: translate(width/2, height/2); text(“MyText”, 0, 0); But, if I’m going to draw …

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## [How to upload a file to a FTP server?](https://discourse.processing.org/t/how-to-upload-a-file-to-a-ftp-server/9417)

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**Author:** [@Schred](https://discourse.processing.org/u/Schred)\
**Replies:** 8\
**Last updated:** [March 26, 2019, 12:20am UTC](https://discourse.processing.org/t/how-to-upload-a-file-to-a-ftp-server/9417 "2019-03-26T00:20:56Z")

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Hi! I need to upload a text file to a FTP server, but don’t know how. I found this tutorial that uses the Commons net library, but since it was written in pure Java, processing gives me some error messages. The tutorial…

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## [glitchP5 library no download links found](https://discourse.processing.org/t/glitchp5-library-no-download-links-found/9621)

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**Author:** [@clicksandpops](https://discourse.processing.org/u/clicksandpops)\
**Replies:** 6\
**Last updated:** [March 26, 2019, 12:00am UTC](https://discourse.processing.org/t/glitchp5-library-no-download-links-found/9621 "2019-03-26T00:00:18Z")

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Hello folks looking for this library and unfortunately it is nowhere to be found! Any suggestions?

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## [Parsing HTML with Jsoup](https://discourse.processing.org/t/parsing-html-with-jsoup/9577)

<div class="topic-metadata">

**Author:** [@esc746](https://discourse.processing.org/u/esc746)\
**Replies:** 4\
**Last updated:** [March 25, 2019, 10:08pm UTC](https://discourse.processing.org/t/parsing-html-with-jsoup/9577 "2019-03-25T22:08:06Z")

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I am attempting to use the Jsoup library to parse HTML but the most basic code does not work. First, the importer generates this: import org.jsoup.\*; import org.jsoup.nodes.\*; import org.jsoup.internal.\*; import org.js…

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## [Examples for 'Getting started with Processing.py' book](https://discourse.processing.org/t/examples-for-getting-started-with-processing-py-book/9530)

<div class="topic-metadata">

**Author:** [@toffeln](https://discourse.processing.org/u/toffeln)\
**Replies:** 3\
**Last updated:** [March 25, 2019, 9:59pm UTC](https://discourse.processing.org/t/examples-for-getting-started-with-processing-py-book/9530 "2019-03-25T21:59:07Z")

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Hi, I’m new to programming and bought the book Getting started with processing.py. All code in the book works but when I open the examples they are coded for java. I’ve searched but can’t find the same examples for pyth…

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## [Image Orientation incorrect after LoadImage() and image()](https://discourse.processing.org/t/image-orientation-incorrect-after-loadimage-and-image/9581)

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**Author:** [@charly4710](https://discourse.processing.org/u/charly4710)\
**Replies:** 4\
**Last updated:** [March 25, 2019, 9:33pm UTC](https://discourse.processing.org/t/image-orientation-incorrect-after-loadimage-and-image/9581 "2019-03-25T21:33:08Z")

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A lot of images do not show the correct orientation, at least not the one that shows in the Windows Explorer and in image editors. For a lot of images, after I have loaded them from the harddrive with loadimage(), and t…

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## [Connect Procssing with Database](https://discourse.processing.org/t/connect-procssing-with-database/9563)

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**Author:** [@Ismaiel\_Ahmed](https://discourse.processing.org/u/Ismaiel_Ahmed)\
**Replies:** 4\
**Last updated:** [March 25, 2019, 9:16pm UTC](https://discourse.processing.org/t/connect-procssing-with-database/9563 "2019-03-25T21:16:13Z")

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Hello everyone, I’ve read that i can normally use java code with processing code in one program. I created the following class to connect to MYSQL online server “which i created online” import java.sql.\*; class Databa…

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## [Processing is unable to find all classes and functions from a 3rd party jar file](https://discourse.processing.org/t/processing-is-unable-to-find-all-classes-and-functions-from-a-3rd-party-jar-file/9611)

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**Author:** [@graysonh](https://discourse.processing.org/u/graysonh)\
**Replies:** 3\
**Last updated:** [March 25, 2019, 9:07pm UTC](https://discourse.processing.org/t/processing-is-unable-to-find-all-classes-and-functions-from-a-3rd-party-jar-file/9611 "2019-03-25T21:07:56Z")

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Hello all, I posted a while ago here and decided I should generalize my issue more with hopes of finding an answer. If you’re interested in my original specific issue feel free to check out the provided link. Here is t…

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## [Troubleshooting an Issue with 3rd Party Library Integration](https://discourse.processing.org/t/troubleshooting-an-issue-with-3rd-party-library-integration/9538)

<div class="topic-metadata">

**Author:** [@graysonh](https://discourse.processing.org/u/graysonh)\
**Replies:** 1\
**Last updated:** [March 25, 2019, 9:02pm UTC](https://discourse.processing.org/t/troubleshooting-an-issue-with-3rd-party-library-integration/9538 "2019-03-25T21:02:36Z")

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Hello all, I am working on a project that uses the ImageJ library for image analysis and I have run into a problem that I don’t understand. I have downloaded the ImageJ jar file, added it to my project, and created a te…

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## [Needle in a NaN stack](https://discourse.processing.org/t/needle-in-a-nan-stack/9519)

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**Author:** [@Tsskyx](https://discourse.processing.org/u/Tsskyx)\
**Replies:** 4\
**Last updated:** [March 25, 2019, 8:57pm UTC](https://discourse.processing.org/t/needle-in-a-nan-stack/9519 "2019-03-25T20:57:29Z")

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So, long story short, I am working on a neural network. Here it is, plus all the assorted files: https://drive.google.com/open?id=1GLXP1Ta0bqXB6fZLjZUJ4ysk23e7cDwt Read through my comments to better understand it, espe…

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## [Image distort - warp](https://discourse.processing.org/t/image-distort-warp/9600)

<div class="topic-metadata">

**Author:** [@dimpapadop](https://discourse.processing.org/u/dimpapadop)\
**Replies:** 0\
**Last updated:** [March 25, 2019, 11:17am UTC](https://discourse.processing.org/t/image-distort-warp/9600 "2019-03-25T11:17:28Z")

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Hallo, i am trying to distort an image to fit to a skewed / distorted shape. For example when i give the 4 corners of a shape and make it fit there even though it is not a rectangle. I tried the easy way with vertex()…

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## [Drawing Ikeda Function](https://discourse.processing.org/t/drawing-ikeda-function/9536)

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**Author:** [@mloiz](https://discourse.processing.org/u/mloiz)\
**Replies:** 2\
**Last updated:** [March 25, 2019, 9:58am UTC](https://discourse.processing.org/t/drawing-ikeda-function/9536 "2019-03-25T09:58:56Z")

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I want to reproduce the Ikeda chaos map example on Wikipedia but I dont manage to have the same result, complexity. I have only one attractor, the center… any advice ? size(500, 700); background(250); int margin = 20; …

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## [4 stroke animation need help with rotate()](https://discourse.processing.org/t/4-stroke-animation-need-help-with-rotate/9510)

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**Author:** [@grillgemuese](https://discourse.processing.org/u/grillgemuese)\
**Replies:** 2\
**Last updated:** [March 25, 2019, 6:53am UTC](https://discourse.processing.org/t/4-stroke-animation-need-help-with-rotate/9510 "2019-03-25T06:53:41Z")

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Hi all, please try to help me undestanding translate() combined with rotate(radians()). My left valve is working nearly as expected but the right valve get() function is not referencing the top of the valve. Thanks a…

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## [Making an aiming line?](https://discourse.processing.org/t/making-an-aiming-line/9514)

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**Author:** [@JsRambles](https://discourse.processing.org/u/JsRambles)\
**Replies:** 4\
**Last updated:** [March 25, 2019, 6:51am UTC](https://discourse.processing.org/t/making-an-aiming-line/9514 "2019-03-25T06:51:11Z")

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Hello! I am attempting to make an “aiming line” but it has to be dashed. How can I make a dashed line? I’ve seen the lerp() function mentioned but they always end up not perfectly straight and kind of whacky looking. I…

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## [GSOC: 2019 Regarding Project and Proposal](https://discourse.processing.org/t/gsoc-2019-regarding-project-and-proposal/9523)

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**Author:** [@ApoorvTaneja](https://discourse.processing.org/u/ApoorvTaneja)\
**Replies:** 4\
**Last updated:** [March 25, 2019, 3:41am UTC](https://discourse.processing.org/t/gsoc-2019-regarding-project-and-proposal/9523 "2019-03-25T03:41:27Z")

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Hello, I am Apoorv Taneja pursuing Electronics and communication engineering from The LNM Institute of Information Technology. I have been interested in contributing to an open source organisation. I find p5.js-web-edit…

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## [Podcast Interview with Cassie Tarakajian](https://discourse.processing.org/t/podcast-interview-with-cassie-tarakajian/9589)

<div class="topic-metadata">

**Author:** [@hellonearthis](https://discourse.processing.org/u/hellonearthis)\
**Replies:** 0\
**Last updated:** [March 24, 2019, 11:37pm UTC](https://discourse.processing.org/t/podcast-interview-with-cassie-tarakajian/9589 "2019-03-24T23:37:51Z")

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A very informative show. Talk about wired in! Cassie Tarakajian is keyed into a lot of my favorite projects, from the Miraweb project, to p5.js, to the Node for Max project that was part of Max 8 - tons of favorites …

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## [KetaiBluetooth trouble on bt connection](https://discourse.processing.org/t/ketaibluetooth-trouble-on-bt-connection/9582)

<div class="topic-metadata">

**Author:** [@Bertolino](https://discourse.processing.org/u/Bertolino)\
**Replies:** 0\
**Last updated:** [March 24, 2019, 5:20pm UTC](https://discourse.processing.org/t/ketaibluetooth-trouble-on-bt-connection/9582 "2019-03-24T17:20:06Z")

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Hello, I am using the Ketai library in order to do a simple bluetooth connection with my Arduino device but I am not able to get it connected. I have already accomplished to connect using the Serial Bluetooth app. So …

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## [Dephormer - Morphing Software](https://discourse.processing.org/t/dephormer-morphing-software/9497)

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**Author:** [@linux-man](https://discourse.processing.org/u/linux-man)\
**Replies:** 1\
**Last updated:** [March 24, 2019, 10:36pm UTC](https://discourse.processing.org/t/dephormer-morphing-software/9497 "2019-03-24T22:36:09Z")

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Interface Video sample https://raw.githubusercontent.com/linux-man/dephormer/master/media/sample.mp4

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## [Slit Scan Variation - Problem with Array](https://discourse.processing.org/t/slit-scan-variation-problem-with-array/9541)

<div class="topic-metadata">

**Author:** [@Luis\_luethi](https://discourse.processing.org/u/Luis_luethi)\
**Replies:** 2\
**Last updated:** [March 24, 2019, 9:28pm UTC](https://discourse.processing.org/t/slit-scan-variation-problem-with-array/9541 "2019-03-24T21:28:59Z")

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Today I was working on a slit scan variation to get an animated slit scan. My goal is, that a movement goes through a video and every slice is updated from the video and shows a different time. like running the video fro…

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