using Syphon to pipe graphics from quil to other apps

[Kasper Jordaens]

Hi,

I want to pipe my sketches to Syphon using the syphon processing library. This works reliably from processing and is as simple as importing the library and running a function at the end of draw(). I succeed in in importing the library in clojure/quil, but then I'm stuck. How do i create the "server object", how can I call it?

not a total clojure noob, but close enough I guess :)

this is the part that does not crash

I added the libs in the projects resources folder and added:

  :resource-paths [
                   "Syphon/library/jsyphon.jar"
                   "Syphon/library/libJSyphon.jnilib"
                   "Syphon/library/Syphon.framework"
                   "Syphon/library/Syphon.jar"
                   ]

to my project.clj

in my namespace I can use 

(:import [codeanticode.syphon])

which loads fine. but from thenn on, I'm stuck, I have no idea on how to implement the three other lines of required code :/

SyphonServer server;

in the setup routine:

server = new SyphonServer(this, "Processing Syphon");

in the draw routine:

server.sendScreen();

So this code from processing

import codeanticode.syphon.*;


SyphonServer server;


void setup() {
  size(400,400, P3D);
 
  // Create syhpon server to send frames out.
  server = new SyphonServer(this, "Processing Syphon");
}


void draw() {
  background(127);
  lights();
  translate(width/2, height/2);
  rotateX(frameCount * 0.01);
  rotateY(frameCount * 0.01);  
  box(150);
  server.sendScreen();
}

works fine.

can this be done in quil?

thanks

Kasper

[Nikita Beloglazov]

Hi Kasper

Yes, it is possible. I added it to FAQ: https://github.com/quil/quil/wiki/FAQ#how-to-use-processing-plugin Essentially you just need to translate java example to clojure using java interop. Hope this helps.

Thanks,

Nikita

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[Kasper Jordaens]

great step forward! The FAQ was pretty straightforward

I can import, and run the code, but it is still missing something. Although I import the dependencies (and I even get ClassName codecompletion) I get a :

Exception in thread "Thread-125" java.lang.RuntimeException: java.lang.NoClassDefFoundError: Could not initialize class jsyphon.JSyphonServer
 at processing.opengl.PSurfaceJOGL$2.run(PSurfaceJOGL.java:443)
 at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class jsyphon.JSyphonServer
 at codeanticode.syphon.SyphonServer.sendImage(Unknown Source)
 at codeanticode.syphon.SyphonServer.sendScreen(Unknown Source)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

if I manually import jsyphon at the repl I get 

=> 'import jsyphon.JSyphonServer
import


CompilerException java.lang.NoClassDefFoundError: Could not initialize class jsyphon.JSyphonServer

I definitely see something here...

Where else would it get the classnames.

Stuck again :/

any idea?

Thanks!

[Kasper Jordaens]

ah ok, one step further

.core=> Syphon 1.0-RC3 by Andres Colubri http://interfaze.info/
Exception in thread "Thread-110" java.lang.UnsatisfiedLinkError: no JSyphon in java.library.path
 at processing.opengl.PSurfaceJOGL$2.run(PSurfaceJOGL.java:441)
 at java.lang.Thread.run(Thread.java:745)

apparently there is a path missing, or a link missing in a path

core=> (println (. System getProperty "java.library.path"))
/Users/kaos/Documents/4_halic/codedspace/target/native/macosx/x86_64
nil

after getting this path, and reading there is some problem https://github.com/Syphon/Processing/issues/18 with Syphon and java paths and dropping all libraries in that folder Syphon Server runs and is detected by other clients!

I can only grab black frames though, but I'll be on the syphon mailing list for that :)

[Kasper Jordaens]

the black frames thing is because of a processing 3 problem

I downgraded to quil [2.1.0] and the problem is solved

check here for more info

Kasper

[Nikita Beloglazov]

Great. So you figured out quil-related problems then? I don't think I can do much about Syphon not supporting OpenGL 3 :/