# OPENRNDR

**URL:** https://openrndr.discourse.group/c/openrndr/5.md?page=4

[Latest](https://openrndr.discourse.group/latest.md) · [Categories](https://openrndr.discourse.group/categories.md)

**Page:** 5

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## [ScreenRecorder and cropping videos](https://openrndr.discourse.group/t/screenrecorder-and-cropping-videos/468)

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**Author:** [@Alessandro](https://openrndr.discourse.group/u/Alessandro)\
**Replies:** 7\
**Last updated:** [December 19, 2022, 12:32pm UTC](https://openrndr.discourse.group/t/screenrecorder-and-cropping-videos/468 "2022-12-19T12:32:26Z")

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When using ScreenRecorder and high resolution canvases I noticed that I get this kind of cropping messages Why does this happen? Also, on the same topic, what is your favorite way of exporting HD videos?

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## [Is \`suggestedFilename\` working for you in \`saveFileDialog\`?](https://openrndr.discourse.group/t/is-suggestedfilename-working-for-you-in-savefiledialog/472)

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**Author:** [@abe](https://openrndr.discourse.group/u/abe)\
**Replies:** 3\
**Last updated:** [December 15, 2022, 7:16pm UTC](https://openrndr.discourse.group/t/is-suggestedfilename-working-for-you-in-savefiledialog/472 "2022-12-15T19:16:38Z")

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Hi! When I run the following program and press the s key I’m not seeing the suggested filename in the dialog that pops up: import org.openrndr.application import org.openrndr.dialogs.saveFileDialog fun main() = applica…

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## [How to determine current scale factor?](https://openrndr.discourse.group/t/how-to-determine-current-scale-factor/471)

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**Author:** [@RonJeffries](https://openrndr.discourse.group/u/RonJeffries)\
**Replies:** 5\
**Last updated:** [December 13, 2022, 2:17pm UTC](https://openrndr.discourse.group/t/how-to-determine-current-scale-factor/471 "2022-12-13T14:17:46Z")

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I surely have a defect in my program, because things are displaying at the wrong scale. It would be helpful if I could get the scale factors from the currently active matrix. That would help me track the problem down. H…

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## [Is there a convenient way to access individual pixels of an image?](https://openrndr.discourse.group/t/is-there-a-convenient-way-to-access-individual-pixels-of-an-image/465)

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**Author:** [@dl33](https://openrndr.discourse.group/u/dl33)\
**Replies:** 2\
**Last updated:** [December 3, 2022, 7:29pm UTC](https://openrndr.discourse.group/t/is-there-a-convenient-way-to-access-individual-pixels-of-an-image/465 "2022-12-03T19:29:03Z")

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I’d like to manipulate pixels one by one in some manner. I hate writing in low-level languages like GLSL though, especially with no autocompletion and error highlighting. So I don’t care about performance now, I just wan…

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## [Share openRNDR window as Texture - Syphon Bridge](https://openrndr.discourse.group/t/share-openrndr-window-as-texture-syphon-bridge/38)

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**Author:** [@Tom\_Peak](https://openrndr.discourse.group/u/Tom_Peak)\
**Replies:** 8\
**Last updated:** [November 26, 2022, 3:59pm UTC](https://openrndr.discourse.group/t/share-openrndr-window-as-texture-syphon-bridge/38 "2022-11-26T15:59:35Z")

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Hello Girls and Boys, I do VJing in Vienna, mainly with audioreative patches to live input. I use VDMX, MadMapper and Processing as my basic setup. These components work together with Syphon. http://syphon.v002.info/ I …

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## [Compute shaders SSBOs behaviour](https://openrndr.discourse.group/t/compute-shaders-ssbos-behaviour/459)

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**Author:** [@Alessandro](https://openrndr.discourse.group/u/Alessandro)\
**Replies:** 5\
**Last updated:** [November 15, 2022, 4:52pm UTC](https://openrndr.discourse.group/t/compute-shaders-ssbos-behaviour/459 "2022-11-15T16:52:59Z")

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Hello there, here I am with something I don’t understand about multiple compute shaders run. Here’s the code import org.intellij.lang.annotations.Language import org.openrndr.application import org.openrndr.color…

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## [Fatal error in Java Runtime Enviroment](https://openrndr.discourse.group/t/fatal-error-in-java-runtime-enviroment/460)

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**Author:** [@paksis](https://openrndr.discourse.group/u/paksis)\
**Replies:** 10\
**Last updated:** [November 14, 2022, 11:15am UTC](https://openrndr.discourse.group/t/fatal-error-in-java-runtime-enviroment/460 "2022-11-14T11:15:58Z")

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Hello, I am a complete newbie here. I want to start learning kotlin and OPENRNDR but it gives me this error every time i want to build the TemplateProgram: EXCEPTION\_ACCESS\_VIOLATION (0xc0000005) at pc=0x00007ffe09ce5…

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## [Unexpected behavior of instancing](https://openrndr.discourse.group/t/unexpected-behavior-of-instancing/450)

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**Author:** [@Alessandro](https://openrndr.discourse.group/u/Alessandro)\
**Replies:** 3\
**Last updated:** [November 5, 2022, 6:35pm UTC](https://openrndr.discourse.group/t/unexpected-behavior-of-instancing/450 "2022-11-05T18:35:23Z")

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I was trying to understand a bit better how instancing works, in particular how to use instances ids in shaders, and I encountered something which I consider an idiosyncratic behavior. Here’s the code import org.open…

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## [How to replicate one frame loop?](https://openrndr.discourse.group/t/how-to-replicate-one-frame-loop/448)

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**Author:** [@finalfire](https://openrndr.discourse.group/u/finalfire)\
**Replies:** 2\
**Last updated:** [October 31, 2022, 3:32pm UTC](https://openrndr.discourse.group/t/how-to-replicate-one-frame-loop/448 "2022-10-31T15:32:27Z")

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Hello there! I’m starting using OPENRNDR and I wonder if there is a way to draw on screen only once. This can be achieved in other creative coding enviroments such as Processing or Nannou. For instance, in the former it …

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## [A question about triangles not being z-sorted](https://openrndr.discourse.group/t/a-question-about-triangles-not-being-z-sorted/445)

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**Author:** [@Alessandro](https://openrndr.discourse.group/u/Alessandro)\
**Replies:** 3\
**Last updated:** [October 25, 2022, 1:33pm UTC](https://openrndr.discourse.group/t/a-question-about-triangles-not-being-z-sorted/445 "2022-10-25T13:33:27Z")

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Here’s a slight elaboration on something I showed at the Openrndr meetup (which was great!), which makes me confused about z-sorting data class Trigger(var t: Double = 0.0){ fun update(){ t \*= 0.…

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## [Loading and saving text, JSON, CSV, binary and XML files](https://openrndr.discourse.group/t/loading-and-saving-text-json-csv-binary-and-xml-files/443)

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**Author:** [@abe](https://openrndr.discourse.group/u/abe)\
**Replies:** 0\
**Last updated:** [October 22, 2022, 3:53pm UTC](https://openrndr.discourse.group/t/loading-and-saving-text-json-csv-binary-and-xml-files/443 "2022-10-22T15:53:55Z")

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Hi! Today I added this section to the guide: :floppy\_disk: Feedback and / or pull requests are welcome :slight\_smile: Here’s the source.

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## [Sequential execution for compute shaders](https://openrndr.discourse.group/t/sequential-execution-for-compute-shaders/441)

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**Author:** [@Alessandro](https://openrndr.discourse.group/u/Alessandro)\
**Replies:** 2\
**Last updated:** [October 22, 2022, 10:17am UTC](https://openrndr.discourse.group/t/sequential-execution-for-compute-shaders/441 "2022-10-22T10:17:58Z")

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I was trying to understand sequential execution of compute shaders. Suppose I have compute shaders computeA and computeB: computeA writes on an SSBO and computeB reads from it. In OpenGL one usually issues a glMemoryBar…

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## [A (cheap) boid system with compute shaders](https://openrndr.discourse.group/t/a-cheap-boid-system-with-compute-shaders/439)

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**Author:** [@Alessandro](https://openrndr.discourse.group/u/Alessandro)\
**Replies:** 3\
**Last updated:** [October 20, 2022, 11:50am UTC](https://openrndr.discourse.group/t/a-cheap-boid-system-with-compute-shaders/439 "2022-10-20T11:50:25Z")

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For study (and of course fun!) reasons I have implemented a \`\`cheap’’ boid system using compute shaders. Here’s the code import org.openrndr.Fullscreen import org.openrndr.KEY\_ENTER import org.openrndr.appl…

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## [Gradle problem after git clone](https://openrndr.discourse.group/t/gradle-problem-after-git-clone/427)

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**Author:** [@fginer](https://openrndr.discourse.group/u/fginer)\
**Replies:** 8\
**Last updated:** [October 13, 2022, 9:41am UTC](https://openrndr.discourse.group/t/gradle-problem-after-git-clone/427 "2022-10-13T09:41:03Z")

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Hi! I want to try OPENRNDR. I have a macbook pro m1. I have IntelliJ Ultimate Idea (I’m a professional developer). After cloning with Intellij the template IntelliJ shows an error (I upload an image because log is to b…

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## [Running on Apple M1](https://openrndr.discourse.group/t/running-on-apple-m1/324)

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**Author:** [@avneeshsarwate](https://openrndr.discourse.group/u/avneeshsarwate)\
**Replies:** 25\
**Last updated:** [October 12, 2022, 4:41pm UTC](https://openrndr.discourse.group/t/running-on-apple-m1/324 "2022-10-12T16:41:19Z")

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I saw that there had been no movement on this issue (Feature request: Support MacOS ARM · Issue #261 · openrndr/openrndr · GitHub)about M1 support, but it looked like, since there does exist a LWJGL version that supports…

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## [Distributing OPENRNDR programs](https://openrndr.discourse.group/t/distributing-openrndr-programs/210)

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**Author:** [@rolodophone](https://openrndr.discourse.group/u/rolodophone)\
**Replies:** 8\
**Last updated:** [October 10, 2022, 11:38pm UTC](https://openrndr.discourse.group/t/distributing-openrndr-programs/210 "2022-10-10T23:38:25Z")

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I don’t know if this has been asked before, but what is the recommended way to distribute programs? I ran the “assembleDist” gradle task, and now I have a shell script and a batch script. When I run the shell script on…

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## [FastLiteNoise ported to GLSL](https://openrndr.discourse.group/t/fastlitenoise-ported-to-glsl/403)

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**Author:** [@sidec](https://openrndr.discourse.group/u/sidec)\
**Replies:** 8\
**Last updated:** [September 21, 2022, 10:37am UTC](https://openrndr.discourse.group/t/fastlitenoise-ported-to-glsl/403 "2022-09-21T10:37:36Z")

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Hi, I rewrote C implementation of FastLiteNoise into GLSL. As far as I am aware it hasn’t been done before and I would like to share with you in case someone is curious. I needed mostly 3d variant and it seems to work i…

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## [Transport error 202: connect failed: Connection refused](https://openrndr.discourse.group/t/transport-error-202-connect-failed-connection-refused/408)

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**Author:** [@francois](https://openrndr.discourse.group/u/francois)\
**Replies:** 12\
**Last updated:** [September 20, 2022, 5:35pm UTC](https://openrndr.discourse.group/t/transport-error-202-connect-failed-connection-refused/408 "2022-09-20T17:35:13Z")

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Hello! I installed openrndr yesterday but i had no luck so far and did not succeed to run the template program. :face\_with\_diagonal\_mouth: The debug message is the following : Connected to the target VM, address: '127…

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## [Composing noise functions for more complex / looping noise](https://openrndr.discourse.group/t/composing-noise-functions-for-more-complex-looping-noise/267)

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**Author:** [@abe](https://openrndr.discourse.group/u/abe)\
**Replies:** 1\
**Last updated:** [August 24, 2022, 12:54pm UTC](https://openrndr.discourse.group/t/composing-noise-functions-for-more-complex-looping-noise/267 "2022-08-24T12:54:40Z")

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The orx-noise OPENRNDR extension received new capabilities in this and this commits. This post describes the new functionality and was posted by Edwin on Slack in July 2021. It starts with functions We know that simplex…

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## [OPENRNDR 0.4.0 + ORX 0.4.0 released!](https://openrndr.discourse.group/t/openrndr-0-4-0-orx-0-4-0-released/394)

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**Author:** [@edwin](https://openrndr.discourse.group/u/edwin)\
**Replies:** 3\
**Last updated:** [August 23, 2022, 5:47pm UTC](https://openrndr.discourse.group/t/openrndr-0-4-0-orx-0-4-0-released/394 "2022-08-23T17:47:58Z")

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It took a while, it took a long while. OPENRNDR 0.4.0 release notes: ORX 0.4.0 release notes: Both releases pack more than a year’s worth of features, improvements and bug fixes. There is quite a bit to unpack here. …

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## [OPENRNDR 0.4.1 + ORX 0.4.1 released!](https://openrndr.discourse.group/t/openrndr-0-4-1-orx-0-4-1-released/413)

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**Author:** [@abe](https://openrndr.discourse.group/u/abe)\
**Replies:** 2\
**Last updated:** [August 23, 2022, 1:16pm UTC](https://openrndr.discourse.group/t/openrndr-0-4-1-orx-0-4-1-released/413 "2022-08-23T13:16:46Z")

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A whole lot of improvements, new features and bugfixes :tada: OPENRNDR 0.4.1 release notes: Release OPENRNDR 0.4.1 · openrndr/openrndr · GitHub ORX 0.4.1 release notes: Release v0.4.1 · openrndr/orx · GitHub

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## [RunwayML Integration & Best Approach for Creative Coding?](https://openrndr.discourse.group/t/runwayml-integration-best-approach-for-creative-coding/400)

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**Author:** [@God](https://openrndr.discourse.group/u/God)\
**Replies:** 2\
**Last updated:** [August 9, 2022, 8:49am UTC](https://openrndr.discourse.group/t/runwayml-integration-best-approach-for-creative-coding/400 "2022-08-09T08:49:14Z")

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Hi :wave: Cailean here! I’ve recently stumbled upon OPENRNDR after deciding what tool I should put my time into learning. I’ve strong programming skills, and I’m picking up Kotlin and RNDR quite handily. However, I’d li…

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## [UnsatisfiedLinkError with orx-syphon](https://openrndr.discourse.group/t/unsatisfiedlinkerror-with-orx-syphon/391)

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**Author:** [@notbloom](https://openrndr.discourse.group/u/notbloom)\
**Replies:** 2\
**Last updated:** [July 9, 2022, 6:20pm UTC](https://openrndr.discourse.group/t/unsatisfiedlinkerror-with-orx-syphon/391 "2022-07-09T18:20:51Z")

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Hi everyone! I’m new to openrndr but so far I’m super excited about i! I’m also new to java and kotlin so sorry if this is obvious, I couldn’t find anything to fix it. I uncommented “orx-syphon” in build.gradle and re…

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## [Remake sessions](https://openrndr.discourse.group/t/remake-sessions/383)

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**Author:** [@abe](https://openrndr.discourse.group/u/abe)\
**Replies:** 1\
**Last updated:** [June 15, 2022, 7:58pm UTC](https://openrndr.discourse.group/t/remake-sessions/383 "2022-06-15T19:58:03Z")

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A few days ago @ricardo and I recorded this video in which we remade a generative artwork from 1978 using OPENRNDR. Looking forward to session #2 :slight\_smile: Based on ReCode Project Code at GitHub - ham…

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## [Enable Screenshots, ScreenRecorder and more in all programs by default](https://openrndr.discourse.group/t/enable-screenshots-screenrecorder-and-more-in-all-programs-by-default/384)

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**Author:** [@abe](https://openrndr.discourse.group/u/abe)\
**Replies:** 0\
**Last updated:** [June 11, 2022, 4:59pm UTC](https://openrndr.discourse.group/t/enable-screenshots-screenrecorder-and-more-in-all-programs-by-default/384 "2022-06-11T16:59:09Z")

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The following tip can be interesting if you have many runnable programs in the same project and want to apply extensions or behaviors to all of them. I have over a hundred OPENRNDR programs in the same clone of openrndr…

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## [VideoPlayerFFMPEG.fromDevice() immediately hangs](https://openrndr.discourse.group/t/videoplayerffmpeg-fromdevice-immediately-hangs/380)

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**Author:** [@dl33](https://openrndr.discourse.group/u/dl33)\
**Replies:** 3\
**Last updated:** [June 4, 2022, 10:40am UTC](https://openrndr.discourse.group/t/videoplayerffmpeg-fromdevice-immediately-hangs/380 "2022-06-04T10:40:03Z")

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I am trying to get video from my laptop camera. I followed the instructions: cloned the Github template repo and wrote sample code for accessing video. However, when the app launches, it instantly stops responding. Usin…

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## [Paid course/tutorials](https://openrndr.discourse.group/t/paid-course-tutorials/377)

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**Author:** [@eg\_f](https://openrndr.discourse.group/u/eg_f)\
**Replies:** 1\
**Last updated:** [May 26, 2022, 1:26pm UTC](https://openrndr.discourse.group/t/paid-course-tutorials/377 "2022-05-26T13:26:45Z")

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Hi, does anyone know of some great paid learning resources?

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## [MIDI file playback and visualization](https://openrndr.discourse.group/t/midi-file-playback-and-visualization/374)

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**Author:** [@abe](https://openrndr.discourse.group/u/abe)\
**Replies:** 0\
**Last updated:** [May 19, 2022, 4:58pm UTC](https://openrndr.discourse.group/t/midi-file-playback-and-visualization/374 "2022-05-19T16:58:30Z")

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I ported an old Processing program that plays back MIDI files and visualizes them. Not particularly unique or aesthetic, just an example to build on top. I used this midi file while tweaking the code. In my system I…

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## [Combining isolatedWithTarget and compositor](https://openrndr.discourse.group/t/combining-isolatedwithtarget-and-compositor/369)

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**Author:** [@antdegouv](https://openrndr.discourse.group/u/antdegouv)\
**Replies:** 1\
**Last updated:** [April 27, 2022, 8:24pm UTC](https://openrndr.discourse.group/t/combining-isolatedwithtarget-and-compositor/369 "2022-04-27T20:24:49Z")

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Hey there, very new to openRNDR coming from a Processing world! Most of my work with generative art is based in generating large scale work in still images, i do collections by the hundreds based on seed numbers. So i…

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## [How does OPENRNDR render text](https://openrndr.discourse.group/t/how-does-openrndr-render-text/367)

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**Author:** [@JochemP](https://openrndr.discourse.group/u/JochemP)\
**Replies:** 1\
**Last updated:** [April 22, 2022, 5:34pm UTC](https://openrndr.discourse.group/t/how-does-openrndr-render-text/367 "2022-04-22T17:34:40Z")

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Does OPENRNDR just use a bitmap/ texture atlas for text or something else. And what tool does it use for generating the fint and glyphs etc. Does it use a freeType binding or java.awt.font or something else?

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