I'm far from experienced in this topic, but this looks like a bug to me.

I found it by trying the "Complex 3D" pdf example. If I draw lines and
polygons with opengl, only lines appear on the PDF. All polygon based
shapes are missing (or invisible?). They do appear on the applet window
though. But if I change the rendering to P3D, all shapes are visible on the
PDF.

FYI, I tried it on the 135 version, and it correctly generates all shapes
using GL.

Here is a snippet that replicates the bug. Replace OPENGL with P3D to see
the difference (btw with the latter, the edge between the 2 triangles
forming each rectangle is visible, is that normal?).


import processing.opengl.*;
import processing.pdf.*;

size(200, 200, OPENGL);

beginRaw(PDF, "bug_rep.pdf");

noStroke();

fill(0);
rect(0,0,width,height);
fill(255);
rect(0,0,50,50);

endRaw();

I'm sorry I forgot to mention this happens to me with the 1.0.1 release on
Leopard.

edit]
pdf exported with the Marius Watz example and opengl

edit]
applet view when generating the previous pdf

*** This bug has been marked as a duplicate of 1099 ***