Finally i put online MultiARToolKit Processing library for working with multiple AR markers in one scene. Based on SimpleARToolKit library from Brian Chung

How it work (demo video)

Sample sketch (also included in zip file)

import ru.cleoag.MultiARToolKit.*;
import net.sourceforge.jartoolkit.core.*;

import JMyron.*;
import processing.opengl.*;

JMyron m;
PImage img;
MultiARToolKit ar;
int capWidth, capHeight;

void setup() {
size(800, 600, OPENGL);
capWidth = 640;
capHeight = 480;
m = new JMyron();
m.start(capWidth, capHeight);
m.findGlobs(0);
img = createImage(capWidth, capHeight, ARGB);
ar = new MultiARToolKit(this, capWidth, capHeight);
ar.addPattern("patt.hiro", 80, 0.0f, 0.0f,"displayCube");
ar.addPattern("patt.kanji", 80, 0.0f, 0.0f,"displaySphere");
lights();
stroke(0);
}

void draw() {
background(0);
m.update();
System.arraycopy(m.image(),0,img.pixels,0,capWidth*capHeight);
img.updatePixels();
hint(DISABLE_DEPTH_TEST);
image(img,0,0,width,height);
hint(ENABLE_DEPTH_TEST);
ar.showObjects(img,100);
}

void displayCube(MultiARToolKit _a) {
fill(0,255,0);
translate(0,0,40);
box(80,80,80);
}

void displaySphere(MultiARToolKit _a) {
fill(0,0,255);
translate(0,0,40);
sphere(40);
}

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