Hello,

I'm trying to do some low-level OpenGL using the new P3D renderer in 2.04a.  I banged my head against the wall for hours trying to figure out what was causing an exception in a very simple sketch:

1. import javax.media.opengl.GL;
2. import javax.media.opengl.GL2;
3. import processing.xml.*;
4. 
   
5. GL gl;
   
6. 
   
7. void setup()
8. {
9.       size(320,240, P3D);
10.       gl = ((PGraphicsOpenGL)g).gl;
11. }
12. 
    
13. void draw()
14. {  
    
15.       // nothing
16. }
    

Running it throws an:

Exception in thread "Animation Thread" java.lang.ClassCastException: processing.core.PGraphics3D cannot be cast to processing.opengl.PGraphicsOpenGL

The problem is the "import processing.xml.*" line - take it out and it works! How odd... is there some renderer code hidden away in the xml files?  Or, is there a better way to use XML? I just spent the day writing an XML module that worked fine until I tried to cast the P3D renderer...

Thanks
Evan