AR and 3D shapes

https://vimeo.com/39207341

Playing around with AR and 3D design in Processing.

code:

import processing.opengl.*;

import processing.video.*;

import jp.nyatla.nyar4psg.*;

import java.io.*;

Capture cam; 
MultiMarker nya;
float r = 10;

void setup()
{
  size(640, 480, OPENGL); 
  cam = new Capture(this, 640, 480); 
  cam.start(); 
  frameRate(15);
  
  nya = new MultiMarker(this, width, height, "camera_para.dat", NyAR4PsgConfig.CONFIG_DEFAULT);
  
  nya.addARMarker("patt.hiro", 80);
  nya.addARMarker("patt.kanji", 80);
}

void draw()
{
  background(0);
  cam.read();
  image(cam, 0, 0, width, height); // display the image at the width and height of the sketch window
  nya.detect(cam); // detect markers in the input image at the correct resolution (incorrect resolution will give assertion error)
  if (nya.isExistMarker(0)) 
  {
    setMatrix(nya.getMarkerMatrix(0));  //use this marker to translate and rotate the processing drawing
////    translate(0, 0, 70); //offset half the size of the cube.
    fill(0, 255, 0);
    
    beginShape(QUAD_STRIP);
    vertex(r*cos(0), r*sin(0), -20);
    vertex(r*cos(PI/4), r*sin(PI/4), -20);
    vertex(r*cos(PI/2), r*sin(PI/2), -20);
    vertex(r*cos(PI), r*sin(PI), -20);
    vertex(r*cos(5*PI/4), r*sin(5*PI/4), -20);
    vertex(r*cos(3*PI/2), r*sin(3*PI/2), -20);
    vertex(r*cos(7*PI/4), r*sin(7*PI/4), -20);
    vertex(r*cos(0), r*sin(0), 0);
    vertex(r*cos(PI/4), r*sin(PI/4), 0);
    vertex(r*cos(PI/2), r*sin(PI/2), 0);
    vertex(r*cos(PI), r*sin(PI), 0);
    vertex(r*cos(5*PI/4), r*sin(5*PI/4), 0);
    vertex(r*cos(3*PI/2), r*sin(3*PI/2), 0);
    vertex(r*cos(7*PI/4), r*sin(7*PI/4), 0);
    endShape(); 

  }
  perspective();
  if (nya.isExistMarker(1)) 
  {
    setMatrix(nya.getMarkerMatrix(1));
//    translate(0, 0, 70); 
    fill(0, 255, 0);
    beginShape(QUAD_STRIP);
    vertex(r*cos(0), r*sin(0), -20);
    vertex(r*cos(PI/4), r*sin(PI/4), -20);
    vertex(r*cos(PI/2), r*sin(PI/2), -20);
    vertex(r*cos(PI), r*sin(PI), -20);
    vertex(r*cos(5*PI/4), r*sin(5*PI/4), -20);
    vertex(r*cos(3*PI/2), r*sin(3*PI/2), -20);
    vertex(r*cos(7*PI/4), r*sin(7*PI/4), -20);
    vertex(r*cos(0), r*sin(0), 0);
    vertex(r*cos(PI/4), r*sin(PI/4), 0);
    vertex(r*cos(PI/2), r*sin(PI/2), 0);
    vertex(r*cos(PI), r*sin(PI), 0);
    vertex(r*cos(5*PI/4), r*sin(5*PI/4), 0);
    vertex(r*cos(3*PI/2), r*sin(3*PI/2), 0);
    vertex(r*cos(7*PI/4), r*sin(7*PI/4), 0);
    endShape(); 

  }
}