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Index › Programming Questions & Help › Integration › JOGL, Mac and Eclipse

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JOGL, Mac and Eclipse (Read 3314 times)

watz

JOGL, Mac and Eclipse
Apr 5^th, 2007, 10:53pm

I just found a solution to the classic problem of trying to run sketches that use OpenGL inside Eclipse on MacOS. The problem is typically that even though you have imported the correct JAR files, it still does not find the native libraries at runtime.

Solution: Ctrl-click on jogl.jar from your package explorer. Select "Properties", then "Native library". This allows you to select a location for the native libraries used by that JAR. Point it to a folder containing the various jnilib files, and you should be just fine.

The native libraries are libjogl_cg.jnilib, libjogl.jnilib and libjogl_awt.jnilib. They can be found in the "libraries > opengl > library" subfolder of your Processing application folder.

Update: Darn. Just realized that I'd missed a previous post about this solution when searching the forums for it. Sorry for the redundancy.

marius watz // unlekker // code & form // Generator.x

guess

Re: JOGL, Mac and Eclipse
Reply #1 - Apr 12^th, 2007, 11:50am

Hello,

I'm desperately trying to do the same thing and can't get it to work!!!

In your Eclipse project do you have -
core.jar
opengl.jar
and
jogl.jar with native library pointing to the jogl files (everything in the opengl > library folder except opengl.jar and jogl.jar?)
?

I have another related problem.
I can't get it to see the data folder properly.
where is the best place to put it?

any help would be great!
thanks jeff

eskimoblood

Re: JOGL, Mac and Eclipse
Reply #2 - Apr 12^th, 2007, 12:51pm

Hi, the following settings work for me (OSX):

I have the three libs (core, opengl and jogl) in my project and add the following line to the VM Arguments:

Code:


-Djava.library.path=/Applications/Processing0122/libraries/opengl/library

This are my import statements:

Code:


import javax.media.opengl.GL;
import processing.core.*;
import processing.opengl.*;

For a little bit more convenience I've put all this jar in a user library so I need only add this one to my projects. Also it's easier to update one core.jar at the user lib then in all my projects.

Ahh, and the data folder is located in my source folder.

Andreas Köberle {eskimoblood}

guess

Re: JOGL, Mac and Eclipse
Reply #3 - Apr 12^th, 2007, 1:42pm

Thanks for your quick response Eskimoblood.

I tried exactly what you said, but unfortunately it still doesn't work...

I've included the beginning of the error message.
Could it be that I'm using the wrong JVM?
I've tried 1.5, 1.4.2

It would be so great if it would work!

Thanks again for the help,
Jeff

java.lang.RuntimeException: java.lang.NullPointerException

at processing.opengl.PGraphicsOpenGL.requestDisplay(PGraphicsOpenGL.java:172)

at processing.core.PApplet.run(PApplet.java:1450)

at java.lang.Thread.run(Thread.java:613)
Caused by: java.lang.NullPointerException

at processing.core.PApplet.pushMatrix(PApplet.java:7439)

guess

Re: JOGL, Mac and Eclipse
Reply #4 - Apr 13^th, 2007, 5:29pm

Another element to my dilemma. Seems to be something simple to someone who is more java-savvy than I.

next to -
import javax.media.opengl.GL;
import processing.opengl.*;

there is a little error message -

The import javax.media.opengl.GL is never used
The import processing.opengl is never used

but I do use them and have a
public class Machin extends PApplet{ call.

Any pointers?

thanks,
jeff

watz Full Member Offline Posts: 202	Re: JOGL, Mac and Eclipse Reply #5 - Apr 14^th, 2007, 12:13am Those messages make sense since the compiler can't see that you are invoking the OpenGL classes. Processing sets up the renderer dynamically. The renderer classes aren't instantiated directly, hence a smart IDE might think they're not in use. Does the code compile?
	marius watz // unlekker // code & form // Generator.x

guess

Re: JOGL, Mac and Eclipse
Reply #6 - Apr 14^th, 2007, 3:41pm

hello, v3ga showed me that the setup (eskimoblood's) actually worked with a very simple file. As my projet is a bit unweidly (yet works in prcessing), lots of different classes, I'm going to try to simplify until I spot the error.

Although it seems to be when I instantiate a class that uses opengl that things go haywire.

Thanks for your help.
Jeff

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