hello!

I'd like to write graphics based on direct openGL calls to a pdf, but just get an empty file

this is how I try:

1. import processing.opengl.*;
   import javax.media.opengl.*;
   
   import processing.pdf.*;
   
     // Direct OPENGL
   PGraphicsOpenGL pgl;
   GL gl;
   
   
   Boolean record=false;
   
   void setup()
     { 
       size (1024,1024,OPENGL);
        pgl           = (PGraphicsOpenGL) g;
        gl            = pgl.gl;
     }
      
      
   void draw()
    {     
     if (record)
      { PGraphicsPDF pdf=(PGraphicsPDF)beginRaw(PDF, "pdfOut"+frameCount+".pdf");
      }
            
     background (255);
     stroke(0);
     noFill();
   
     gl=((PGraphicsOpenGL)g).beginGL();
     gl.glColor4f(0f,0f,0f,1f);
     gl.glBegin(GL.GL_LINES);
       gl.glVertex3f(0,0,0);
       gl.glVertex3f(800,800,800);
     gl.glEnd();
   
     ((PGraphicsOpenGL)g).endGL();  // end of the gl queue
        
     if (record)
       {endRaw();
        record = false;
       }
     }
    
    void keyPressed()
     {
      if(key==' ') record=true;
     }     
   

is there anyway to do this without using the traditional processing drawing methods?

any help appreciated!

thanks

leo