Using P3D, objects are drawn to PDF in the order they occur in the code - if I draw (say) a box with a sphere inside, on saving to PDF the sphere is drawn in front of the box (or vice-versa, depending on their order in the code).

Using OpenGL, fills that failed to appear in the PDF in v1.0 now appear in 1.0.9 but the depth issue remains. Also, polygon artefacts appear with 'ENABLE_DEPTH_SORT' (related to Bug 176?). This illustrates both issues:

Code:

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

float yTheta = 0.0;
float xTheta = 0.0;

boolean recordPDF = false;

void setup() {
//  size(400, 400, OPENGL);
  size(400, 400, P3D);
//  hint(ENABLE_OPENGL_4X_SMOOTH);
//  hint(ENABLE_DEPTH_SORT); // polygon artefacts in PDF
}

void draw() {
  if (recordPDF) {
    beginRaw(PDF, "###_3D.pdf");
  }
  background(255);
  translate(width/2, height/2);
  rotateX(xTheta);
  rotateY(yTheta);

//  draw sphere first - or swap with box
  noStroke();
  fill(200);
  sphere(50);

//  draw box - or swap with sphere
  stroke(1, 10);
  noFill();
  box(100); // 'hidden' box strokes appear in front of sphere in PDF

  xTheta += 0.01;
  yTheta += 0.02;
  if(recordPDF) {
    endRaw();
    recordPDF = false;
  }
}

void mousePressed() {
  recordPDF = true;
}
 

Forgot to point out that this occurs when drawing to PDF. Re-posted with code example, and to raise another two issues when using OpenGL. Apologies - my stupid.