i l try to render a shape and get "vertex(x,y,u,v)is not available with this renderer". I cannot find the mistake. I use version 1.5. The shape rotates, but when i press the mouse button in order to make a pdf of a frame, nothing happens.Can you help?

Thank you




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

PImage tex;
float rotx = PI/4;
float roty = PI/4;

// A boolean variable that when set to true triggers the PDF recording process
boolean recordPDF = false;


void setup()
{
  size(640, 360, OPENGL);
  tex = loadImage("uvtex.jpg");
  textureMode(NORMALIZED);
  fill(255);
  stroke(color(44,48,32));
}

void draw()
{
    // Begin making the PDF
  if (recordPDF) {
    beginRaw(PDF, "3D.pdf" ); // If you include "####" in the filename -- "3D-####.pdf" -- separate, numbered PDFs will be made for each frame that is rendered.
  }
  background(0);
  noStroke();
  translate(width/2.0, height/2.0, -100);
  rotateX(PI*mouseY/height);
  rotateY(PI*mouseX/width);
  scale(90);
  TexturedTriangle(tex);
}

void TexturedTriangle(PImage tex) {
  beginShape(TRIANGLE_FAN);
  texture(tex);

 
 
  vertex(-1,-1,-1,0);
  vertex( 1,-1,-1,0);
  vertex( 0, 0, 1,1);
 
   
  vertex( 1,-1,-1,0);
  vertex( 1, 1,-1,0);
  vertex( 0, 0, 1,1);
  
 
     vertex( 1, 1,-1);
  vertex(-1, 1,-1);
  vertex( 0, 0, 1);
 
 
  vertex(-1, 1,-1);
  vertex(-1,-1,-1);
  vertex( 0, 0, 1);
 

  endShape();
 



    // End making the PDF
  if (recordPDF) {
    endRaw();
    recordPDF = false;
  }
}

// Make the PDF when the mouse is pressed
void mousePressed() {
  recordPDF = true;
}