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Index › Processing Development › Core,  Processing Development Environment (PDE) › Export problems: Exception in Animation Thread
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Export problems: Exception in Animation Thread (Read 2667 times)
Moss
Export problems: Exception in Animation Thread
Apr 28th, 2010, 11:18pm  
Not sure if this is the right forum category but I can't run my app which you can see at http://md9.ca/testing/applet/.

It has this error:

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(Unknown Source)
     at java.lang.Class.getConstructor0(Unknown Source)
     at java.lang.Class.getConstructor(Unknown Source)
     at processing.core.PApplet.makeGraphics(Unknown Source)
     at processing.core.PApplet.size(Unknown Source)
     at processing.core.PApplet.size(Unknown Source)
     at mutantCA.setup(mutantCA.java:43)
     at processing.core.PApplet.handleDraw(Unknown Source)
     at processing.core.PApplet.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: javax.media.opengl.glu.GLUtessellatorCallback
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     ... 11 more

I got a simpler applet running fine. This one uses codeanticode.glgraphics for GPU processing and it loads some bitmaps. That's about the only special things I can think of.
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Lonnen
Re: Export problems: Exception in Animation Thread
Reply #1 - Apr 29th, 2010, 6:37am  
Try import javax.media.opengl.*; instead of javax.media.opengl.GL;

More information about this is in the advanced section of the openGL reference: http://processing.org/reference/libraries/opengl/index.html

though it comes with the following caveats:
1. I'm not so familiar with OpenGL, and it may not help at all.

2. In accordance with the documentation: If you want to have direct access to JOGL you should be doing it with a good IDE and if you insist on using the PDE you may get weird errors that confuse people on the internet. Smiley
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Moss
Re: Export problems: Exception in Animation Thread
Reply #2 - May 9th, 2010, 9:30pm  
The problem is that I am using the GLGraphics renderer.

Code:
size(598 , 630, GLConstants.GLGRAPHICS);


If I switch to OPENGL it loads fine, and appears to be running except that it doesn't display correctly. All I see is a frame counter that I set up. Is this likely something that I can fix or is it a problem with GLGRAPHICS? That would be ideal if I could fix that, otherwise I can probably modify my code to use OPENGL but it might take a huge performance hit...
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