Some projects in Eclipse are exported fine, and others leave you with a blank applet, especially all projects that involve the OpenGL library. 

Any thoughts? 

Hi All,

I am trying to deploy a web app made of both java and processing, through the Eclipse IDE. 

These are the steps that i take: 

1. Create a folder for deployment 

2. Go to Eclipse, right-click, export the folder as a JAR file to the designated folder 

3. Sign the applet (according to  http://wiki.processing.org/w/Sign_an_Applet)

4. Create a JNLP file to launch the app through a URL through the browser. 

Now, the result is that I get the same error over and over again. I have even tried with Proclipsing, exported a very very simple OpenGL project, and the same exception gets thrown. Check it out here: 

So basically my exported JAR already contains the core.jar............ what am I doing wrong? And is this a bug? Can it be fixed? 

Help is very much appreciated!! 

thanks,

Dave 

I have been banging my head in the walls for a quite some time now, but I seriously do not know what I am doing wrong here. I have googled the problem for some time and now I get more and more confused. Here is the problem; I am trying simply to run the example from the OpenGl reference http://processing.org/reference/libraries/opengl/, with Eclipse and I get nothing but errors. 

I basically add/import the core.jar and opengl.jar to the project path, but I get a warning at the  import processing.opengl.*;

saying that the library is never used (???) - its very very strange, because it is there, and i can see it... 

If i render this with the P3D mode parameter, it works fine, but for OpenGL its a mystery. 

import processing.core.*;

import processing.opengl.*;

public class testingOpenGL extends PApplet {

//private static final long serialVersionUID = 1L;

float a; 

public void setup() {

  size(800, 600, OPENGL);

  fill(0, 153);

  noStroke();

}

public void draw() {

  background(255);

  translate((width/2), (height/2));

  rotateX(a);

  rotateY(a*2);

  rect(-200, -200, 400, 400);

  rotateX(PI/2);

  rect(-200, -200, 400, 400);

  a += 0.01;

}

}

Exception in thread "Animation Thread" java.lang.NoClassDefFoundError: javax/media/opengl/glu/GLUtessellatorCallback

at java.lang.Class.getDeclaredConstructors0(Native Method)

at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)

at java.lang.Class.getConstructor0(Class.java:2699)

at java.lang.Class.getConstructor(Class.java:1657)

at processing.core.PApplet.makeGraphics(PApplet.java:1322)

at processing.core.PApplet.size(PApplet.java:1149)

at processing.core.PApplet.size(PApplet.java:1109)

at testingOpenGL.setup(testingOpenGL.java:29)

at processing.core.PApplet.handleDraw(PApplet.java:1583)

at processing.core.PApplet.run(PApplet.java:1503)

at java.lang.Thread.run(Thread.java:680)

Caused by: java.lang.ClassNotFoundException: javax.media.opengl.glu.GLUtessellatorCallback

at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:307)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:248)

... 11 more

Then I google this error:  

javax/media/opengl/glu/GLUtessellatorCallback

and there are tons of suggestions, which I have already tried out, but none of them work.

1.) Adding the "opengl" classpath to the VM arguments - did that, but its not working 

2.) Suggestions about adding jogl.jar to the project folder - already done this by adding the opengl.jar to the project folder, because it already contains the jogl.jar 

3.) Browsed the old forum and triend with different MODE parameters, but NOTHING works. 

I am running OS X 10.6.4
with Eclipse 3.6.1

Java SE 1.6
JOGL libraries supplied with the opengl package
Processing 1.2.1. 

Any suggestions, solutions, thoughts? I would really appreciate this.... 

Hello, 

I have implemented the movie class to try to display a quicktime movie file. Unfortunately the framerate is delayed, and after googling the problem, I got more confused. 

Does anyone know why the framerate is delayed, and what can I do in order to solve the problem? Is Processing the right tool for this? 

Here is the code, its pretty straightforward... 

(i tried different MODE parameteres, Java2d, P2D, P3D etc, but there is absolutely no difference)

1. 
   

   import processing.video.*; 

   import processing.core.*;

   
   

   public class QTDisplay extends PApplet {

   
   

   Movie myMovie;

    

   public void setup() {

       size(720,576, P2D); 

       frameRate(60);

       background(0); 

       myMovie = new Movie(this, "vid1.mov");

       myMovie.read(); 

       myMovie.loop();

          

   }  

     public void draw() {

       image(myMovie,0,0, width, height);    

   //println(frameCount); 

       tint(255, 20);

          

     

    

     }

    

   // Called every time a new frame is available to read

     void movieEvent(Movie myMovie) {

       myMovie.read();

     }

   
   

   }

All development is done on: 

Intel MackBook Pro, OS X 10.6.4. Processing 1.2.1

QuickTime 10.0 (114) & Eclipse 3.6.1. 

Help is much appreciated!