# Processing

**URL:** https://discourse.processing.org/c/processing/6.md?no_subcategories=false&page=239

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

**Page:** 240

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## [Super simple code. What am I missing?](https://discourse.processing.org/t/super-simple-code-what-am-i-missing/17342)

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**Author:** [@Tomfoolery](https://discourse.processing.org/u/Tomfoolery)\
**Replies:** 4\
**Last updated:** [February 1, 2020, 10:13pm UTC](https://discourse.processing.org/t/super-simple-code-what-am-i-missing/17342 "2020-02-01T22:13:59Z")

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I’ll probably kick myself when somebody answers this but I just can’t figure out what’s wrong with my code. All I want is to increase the red value by .01 per frame. When I run it, the value doesn’t change at all. If I r…

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## [Issues with loading video / movie](https://discourse.processing.org/t/issues-with-loading-video-movie/17498)

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**Author:** [@amprocessing](https://discourse.processing.org/u/amprocessing)\
**Replies:** 1\
**Last updated:** [February 1, 2020, 6:58pm UTC](https://discourse.processing.org/t/issues-with-loading-video-movie/17498 "2020-02-01T18:58:35Z")

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im trying to add and load a video in my code. however its not working, and I don’t know what the issue is. Can someone help me import processing.video.\*; float spd = 1.0; Movie movie; void setup() { size(800…

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## [Sync server with client](https://discourse.processing.org/t/sync-server-with-client/17500)

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**Author:** [@bento](https://discourse.processing.org/u/bento)\
**Replies:** 0\
**Last updated:** [February 1, 2020, 4:16pm UTC](https://discourse.processing.org/t/sync-server-with-client/17500 "2020-02-01T16:16:16Z")

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Hello again, I am still getting problems with my server and client program, this time I can’t sync the server with the client. The client just hears the server and prints it. Here is the code import processing.net.\*; …

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## [Short film created solely on Processing](https://discourse.processing.org/t/short-film-created-solely-on-processing/15098)

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**Author:** [@ilianfilm](https://discourse.processing.org/u/ilianfilm)\
**Replies:** 13\
**Last updated:** [February 1, 2020, 9:54am UTC](https://discourse.processing.org/t/short-film-created-solely-on-processing/15098 "2020-02-01T09:54:18Z")

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Hello everybody, I’m new to this forum and I’m new to Processing in general. I wanted to ask if anybody is aware of short films created solely on Processing? I know many people have created clips with different shapes…

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## [Ideas to create elastic line animation - \[SOLVED\]](https://discourse.processing.org/t/ideas-to-create-elastic-line-animation-solved/17394)

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**Author:** [@adaptinnovative](https://discourse.processing.org/u/adaptinnovative)\
**Replies:** 3\
**Last updated:** [February 1, 2020, 3:07am UTC](https://discourse.processing.org/t/ideas-to-create-elastic-line-animation-solved/17394 "2020-02-01T03:07:04Z")

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I have drawn a horizontal line using points. I want to split the points in half so the line separate. Then the centre point rises vertically straight up the y-axis and the last point stays on the horizontal axis of x. Ho…

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## [Client got end-of-stream](https://discourse.processing.org/t/client-got-end-of-stream/17486)

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**Author:** [@bento](https://discourse.processing.org/u/bento)\
**Replies:** 1\
**Last updated:** [February 1, 2020, 2:16am UTC](https://discourse.processing.org/t/client-got-end-of-stream/17486 "2020-02-01T02:16:40Z")

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I am trying to create a new processing net sketch and I always get this error Client got end-of-stream. I am using 2 sketches the client and the server the client is import processing.net.\*; Client cln; void setup(…

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## [Display information from Arduino Serial Monitor](https://discourse.processing.org/t/display-information-from-arduino-serial-monitor/17439)

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**Author:** [@jaxx2009](https://discourse.processing.org/u/jaxx2009)\
**Replies:** 2\
**Last updated:** [January 31, 2020, 9:07pm UTC](https://discourse.processing.org/t/display-information-from-arduino-serial-monitor/17439 "2020-01-31T21:07:58Z")

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From what I understand, you can’t have processing functioning at 100% while the Arduino serial monitor is open. The Arduino serial monitor has some information that I need to be able to see written to it, is there a way …

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## [Creating a hit box?](https://discourse.processing.org/t/creating-a-hit-box/17469)

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**Author:** [@lupos](https://discourse.processing.org/u/lupos)\
**Replies:** 1\
**Last updated:** [January 31, 2020, 1:41pm UTC](https://discourse.processing.org/t/creating-a-hit-box/17469 "2020-01-31T13:41:44Z")

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I am having trouble with hit boxes, the enemy only stops when it gets to s specific point not when it touches the hole enemy and I can figure out how float X,Y,Xc,Yc,Xm,Ym,Xl,Xr,Yt,Yb; float H1,H2,H3,H1x,H1y,Ev; floa…

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## [How to move an image including horizontal and vertical inversion](https://discourse.processing.org/t/how-to-move-an-image-including-horizontal-and-vertical-inversion/17473)

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**Author:** [@all](https://discourse.processing.org/u/all)\
**Replies:** 3\
**Last updated:** [January 31, 2020, 3:31pm UTC](https://discourse.processing.org/t/how-to-move-an-image-including-horizontal-and-vertical-inversion/17473 "2020-01-31T15:31:33Z")

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Hello, My aim is to get the same behavior than line(x1, y1, x2, y2) but with a PNG image image(img, x1, y1, x2, y2) using the imageMode(CORNERS); My PNG image have a transparent background and the line go from the uppe…

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## [Which Dev environments are people using / recommending?](https://discourse.processing.org/t/which-dev-environments-are-people-using-recommending/16998)

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**Author:** [@Psteely](https://discourse.processing.org/u/Psteely)\
**Replies:** 4\
**Last updated:** [January 31, 2020, 1:45pm UTC](https://discourse.processing.org/t/which-dev-environments-are-people-using-recommending/16998 "2020-01-31T13:45:52Z")

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Whilst Processing has been / is proving a very powerful tool for learning java and coding, I have found references to other Dev environments such as Eclipse and IntelliJ. I have had a play around with both of these and …

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## [Pixel Sorting with threshold](https://discourse.processing.org/t/pixel-sorting-with-threshold/17462)

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**Author:** [@Alexx](https://discourse.processing.org/u/Alexx)\
**Replies:** 1\
**Last updated:** [January 31, 2020, 8:39am UTC](https://discourse.processing.org/t/pixel-sorting-with-threshold/17462 "2020-01-31T08:39:26Z")

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Hi. I’m new to Processing. Hope someone is able to help me. In my sketch the pixel sorting work on width, but I I need it to be vertical non horizontal … how? Thank you. This is the code: int mode = 0; int threshold…

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## [Creating an enemy class](https://discourse.processing.org/t/creating-an-enemy-class/17223)

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**Author:** [@lupos](https://discourse.processing.org/u/lupos)\
**Replies:** 6\
**Last updated:** [January 30, 2020, 10:53pm UTC](https://discourse.processing.org/t/creating-an-enemy-class/17223 "2020-01-30T22:53:12Z")

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I am working on a school project and I am having trouble creating multiple enemies form one class. when I create an two enemies from the same class and when one gets hit they all disappear can someone help please. here …

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## [How do I make a Stepped Grayscale gradation in grid arrays](https://discourse.processing.org/t/how-do-i-make-a-stepped-grayscale-gradation-in-grid-arrays/17437)

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**Author:** [@debxyz](https://discourse.processing.org/u/debxyz)\
**Replies:** 7\
**Last updated:** [January 30, 2020, 10:08pm UTC](https://discourse.processing.org/t/how-do-i-make-a-stepped-grayscale-gradation-in-grid-arrays/17437 "2020-01-30T22:08:16Z")

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I have 2 examples of attempts to figure out how to implement a gradation of grays to various grid array sketches. The first sketch is a bar grid with a single row of 7 cells. The second sketch is a 9 square grid with…

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## [Expecting EOF, found if. idk how to fix it](https://discourse.processing.org/t/expecting-eof-found-if-idk-how-to-fix-it/17468)

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**Author:** [@prototype\_31](https://discourse.processing.org/u/prototype_31)\
**Replies:** 1\
**Last updated:** [January 30, 2020, 9:34pm UTC](https://discourse.processing.org/t/expecting-eof-found-if-idk-how-to-fix-it/17468 "2020-01-30T21:34:33Z")

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void setup(){ size(2000,2000); background(0); } void keyPressed() { //1st planet if (key == 'b' || key == 'B') { if (keyPressed) stroke(0); fill(0); } else { stroke(#18B733); fill(#18B…

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## [Thinking Object Oriented](https://discourse.processing.org/t/thinking-object-oriented/17448)

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**Author:** [@DeidaraLP](https://discourse.processing.org/u/DeidaraLP)\
**Replies:** 4\
**Last updated:** [January 30, 2020, 5:16pm UTC](https://discourse.processing.org/t/thinking-object-oriented/17448 "2020-01-30T17:16:07Z")

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Hey folks. So for a school assignment, we had to create some kind of game with at least two self-defined classes while using object-oriented programming. However, I’m finding it quite hard to implement this OOP way of t…

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## [Rotating Canvas](https://discourse.processing.org/t/rotating-canvas/17108)

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**Author:** [@Interkinactive](https://discourse.processing.org/u/Interkinactive)\
**Replies:** 9\
**Last updated:** [January 30, 2020, 3:48pm UTC](https://discourse.processing.org/t/rotating-canvas/17108 "2020-01-30T15:48:27Z")

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Hi there, I’m stuck with this problem: I want to draw something on a rotating canvas. Working with PGraphics and saving my image as PImage for buffer. The canvas is rotating, but the coordinates of the mousepoint are ro…

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## [Osc Messages from Processing to SuperCollider](https://discourse.processing.org/t/osc-messages-from-processing-to-supercollider/17441)

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**Author:** [@Alexx](https://discourse.processing.org/u/Alexx)\
**Replies:** 5\
**Last updated:** [January 30, 2020, 1:44pm UTC](https://discourse.processing.org/t/osc-messages-from-processing-to-supercollider/17441 "2020-01-30T13:44:17Z")

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HI! How can I send two Osc Messages from Processing to SuperCollider? So far I have only managed to connect one sound, but but I’m missing two more sounds. How can I do that? In void draw() I need to have two/three “/…

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## [SOLVED Draw\_Nodes Export to PDF has too many duplicated paths](https://discourse.processing.org/t/solved-draw-nodes-export-to-pdf-has-too-many-duplicated-paths/17444)

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**Author:** [@new](https://discourse.processing.org/u/new)\
**Replies:** 0\
**Last updated:** [January 30, 2020, 12:01pm UTC](https://discourse.processing.org/t/solved-draw-nodes-export-to-pdf-has-too-many-duplicated-paths/17444 "2020-01-30T12:01:16Z")

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Hi everyone, I am pretty new to processing and have haphazardly made my way through some code to get a graphic output for a poster I am making. The code comes from multiple sources so I am sure there is a lot of unneces…

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## [2 threads Processing in Java IDE](https://discourse.processing.org/t/2-threads-processing-in-java-ide/17379)

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**Author:** [@gerome](https://discourse.processing.org/u/gerome)\
**Replies:** 9\
**Last updated:** [January 30, 2020, 10:06am UTC](https://discourse.processing.org/t/2-threads-processing-in-java-ide/17379 "2020-01-30T10:06:16Z")

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In the course of rebuilding a big Processing project in a Java IDE (IntelliJ) on Windows 10 x64, Processing 3.5.4, I try to translate the old solution for running two Processing threads, one in 2D, one in 3D on differen…

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## [Some problem with the code execution screen](https://discourse.processing.org/t/some-problem-with-the-code-execution-screen/17102)

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**Author:** [@leonardorocha](https://discourse.processing.org/u/leonardorocha)\
**Replies:** 4\
**Last updated:** [January 30, 2020, 1:17am UTC](https://discourse.processing.org/t/some-problem-with-the-code-execution-screen/17102 "2020-01-30T01:17:16Z")

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Hi guys, I having some problems to execute a code. When I click on button Run nothing happens. Someone knows what is going on?

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## [Problem of display in a " for" loop](https://discourse.processing.org/t/problem-of-display-in-a-for-loop/17422)

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**Author:** [@cypseb](https://discourse.processing.org/u/cypseb)\
**Replies:** 6\
**Last updated:** [January 29, 2020, 8:15pm UTC](https://discourse.processing.org/t/problem-of-display-in-a-for-loop/17422 "2020-01-29T20:15:12Z")

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Hello everybody i am not a beguiner in programing, but i am a beguinner in processing I try to move a text in a FOR loop but the drawing is not refresh, only at the end of the loop i try to add redraw() in my loop bu…

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## [Vertex shader displacement](https://discourse.processing.org/t/vertex-shader-displacement/17415)

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**Author:** [@Geo\_Pi](https://discourse.processing.org/u/Geo_Pi)\
**Replies:** 1\
**Last updated:** [January 29, 2020, 3:26pm UTC](https://discourse.processing.org/t/vertex-shader-displacement/17415 "2020-01-29T15:26:19Z")

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Hi, I’m in the process of learning OpenGL & GLSL. I’m trying to port to processing this THREE.js tutorial on vertex displacement shader https://www.clicktorelease.com/blog/vertex-displacement-noise-3d-webgl-glsl-three…

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## [Arduino, piezo sensors and Processing animations](https://discourse.processing.org/t/arduino-piezo-sensors-and-processing-animations/17255)

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**Author:** [@EasyJu](https://discourse.processing.org/u/EasyJu)\
**Replies:** 5\
**Last updated:** [January 29, 2020, 1:24pm UTC](https://discourse.processing.org/t/arduino-piezo-sensors-and-processing-animations/17255 "2020-01-29T13:24:15Z")

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Hi everyone, (french version below) I’m working on a project with Arduino, piezo sensors and Processing. I would like to have an animation played on Processing for each time a sensor is activated (an animation for a se…

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## [Video switch not on Loop](https://discourse.processing.org/t/video-switch-not-on-loop/17407)

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**Author:** [@vanoevelenstef](https://discourse.processing.org/u/vanoevelenstef)\
**Replies:** 1\
**Last updated:** [January 29, 2020, 11:03am UTC](https://discourse.processing.org/t/video-switch-not-on-loop/17407 "2020-01-29T11:03:03Z")

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I compiled this code from some sources and it works (what is a big deal) but my video stops after it plays and I would like it to play on loop. Tried loop(); function but didn’t work. Any suggestions? import processing.…

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## [How to include G4P controls with saveFrame](https://discourse.processing.org/t/how-to-include-g4p-controls-with-saveframe/17233)

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**Author:** [@Priscilla\_van\_Gritte](https://discourse.processing.org/u/Priscilla_van_Gritte)\
**Replies:** 25\
**Last updated:** [January 29, 2020, 10:59am UTC](https://discourse.processing.org/t/how-to-include-g4p-controls-with-saveframe/17233 "2020-01-29T10:59:17Z")

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When I use the “saveFrame” function it does take a screenshot of the sketch but does not take all its elements. For example, this first image is a screenshot taken with the Windows tool: And this one is a screenshot …

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## [2D grid array question](https://discourse.processing.org/t/2d-grid-array-question/17189)

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**Author:** [@debxyz](https://discourse.processing.org/u/debxyz)\
**Replies:** 19\
**Last updated:** [January 28, 2020, 11:16pm UTC](https://discourse.processing.org/t/2d-grid-array-question/17189 "2020-01-28T23:16:43Z")

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For the past few days have been trying to better understand grids and arrays. After reading D Shiffman tutorial on 2D grid arrays I am now trying to play with that code a bit. I would like the grid(s) to appear twice,…

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## [How can I run a for loop using a function?](https://discourse.processing.org/t/how-can-i-run-a-for-loop-using-a-function/17403)

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**Author:** [@Daniele92](https://discourse.processing.org/u/Daniele92)\
**Replies:** 4\
**Last updated:** [January 28, 2020, 11:01pm UTC](https://discourse.processing.org/t/how-can-i-run-a-for-loop-using-a-function/17403 "2020-01-28T23:01:40Z")

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Hello to everyone. Can someone explain to me , How can I run a : for( int i=100; i\>0; i=i-10 ) { ellipse(100,100,i,i); } Using a function?! Thank you , i DON’t want a code but need to understand for classroom activit…

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## [Making a 3D camera](https://discourse.processing.org/t/making-a-3d-camera/17357)

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**Author:** [@ArthusWQZ](https://discourse.processing.org/u/ArthusWQZ)\
**Replies:** 11\
**Last updated:** [January 28, 2020, 10:41pm UTC](https://discourse.processing.org/t/making-a-3d-camera/17357 "2020-01-28T22:41:12Z")

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Hello everyone, I recently started coding a 3d program, some kind of game, but I remain stuck because of one simple thing : how to make a 3d camera ? In fact, the program generates a cube, but I want it to move when I …

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## [Change world's gravity using keyPressed (Fisica)](https://discourse.processing.org/t/change-worlds-gravity-using-keypressed-fisica/17362)

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**Author:** [@floflopm](https://discourse.processing.org/u/floflopm)\
**Replies:** 3\
**Last updated:** [January 28, 2020, 5:06pm UTC](https://discourse.processing.org/t/change-worlds-gravity-using-keypressed-fisica/17362 "2020-01-28T17:06:01Z")

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Hi, I am using Fisica library in which I set gravity (gx, gy). I would like to be able to change the value of the gravity using keyPressed in a range of -100 to 100 so I can control the motion of balls from left to righ…

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## [Any Processing Sound Library Supporting .m4a?](https://discourse.processing.org/t/any-processing-sound-library-supporting-m4a/13722)

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**Author:** [@processingCendrum](https://discourse.processing.org/u/processingCendrum)\
**Replies:** 4\
**Last updated:** [January 28, 2020, 3:31pm UTC](https://discourse.processing.org/t/any-processing-sound-library-supporting-m4a/13722 "2020-01-28T15:31:56Z")

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I’m trying to create an interface to play and browse my music. Thing is, most of it is in .m4a, and neither the Sound library nor the Minim library seem to support that format. All my music is either in .m4a or in .mp3,…

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