hi all,

davide morelli did almost a working bridge of artoolkitplus and pure 
data - gem. i think it would bring many new possibilities to AR like 
opengl dataflow, sound, sensors, open sound control, video, physical 
modeling, importation of model (.obj) etc...

please have a look at this url:
http://www.davidemorelli.it/dokuwiki/doku.php?id=ar:augmented_reality_and_interfaces

right now, the external is detecting the correct id of the marker and 
also follows each marker if we rotate it until the angle is below 90°...

that would be fantastic if we can do this bridge. i cc artoolkit forum, 
many some people would be willing to help.

pat

hello,

i was waiting to see if more people would show an interest in this 
project. i can't believe how much the traffic is low for a technology 
that will be everywhere in a near future (forums on ar).

anyway the good news is that james tittle is interested in this project 
and davide morelli already did a big part. we just need the source of 
pix_artoolkit write by shigeyuki for max/msp. we will port it to pd and 
then we will try to use artoolkitplus!

shigeyuki can you share your source?

maybe other developers will be interested in joining this effort to 
bring augmented reality to a dataflow environment. that's why i still cc 
gem-dev and artoolkit forums.

patrick

Hi,

I'm currently in the way of porting ARToolkitPlus in Drone, an 
open-source heterogenous computing environment (with dataflow, FSM, and 
others) (see http://trac.drone.ws). The code will be in Java and will 
integrate with a library for 3d graphics in Java, that will be coded 
this winter. I don't know yet wether I'll try to port GEM into Drone 
(with a JNI bridge) or code another library in JOGL. But in any case, 
that will be yet another port of AR into a visual programming 
environment. I'll be following closely Morelli's work and altough right 
now I didn't really put any of my code available, I'll do it pbly in 
january when it is a bit more advanced.

Cheers,

patrick wrote:
> hello,
>
> i was waiting to see if more people would show an interest in this 
> project. i can't believe how much the traffic is low for a technology 
> that will be everywhere in a near future (forums on ar).
>
> anyway the good news is that james tittle is interested in this 
> project and davide morelli already did a big part. we just need the 
> source of pix_artoolkit write by shigeyuki for max/msp. we will port 
> it to pd and then we will try to use artoolkitplus!
>
> shigeyuki can you share your source?
>
> maybe other developers will be interested in joining this effort to 
> bring augmented reality to a dataflow environment. that's why i still 
> cc gem-dev and artoolkit forums.
>
> patrick
>
>


-- 
J. S. Senécal
http://drone.ws

hello... again :)

for those who don't know what is pure data / gem, here's a brief 
overview of it's possibilities. my english is very basic so i hope to 
not be boring...

pure data is an open source dataflow environment that facilitate the 
development of audio/video software. you don't need to know open gl or 
C, C++, you only have to connect box together to make something happen. 
the simplest audio example would be [oscillator 440] <----> [soundcard] 
(actually in pd it's [osc~ 440] <----> [dac~]).

why i am bothering so much ar/gem programmers... here's the 
possibilities that pd have already have:

    - full audio (reading samples, fftw3, spatialisation...)
    - open gl (anti-aliasing, light, name it)
    - loading obj (blender export for example)
    - reading video files, jpeg, tiff...
    - recording video
    - physical modeling, particle (very interesting for AR)
    - sensors (arduino, wiring, comport)
    - open sound control

dreaming - no need to read {
i am dreaming about loading an .obj form without knowing nothing about C 
and applying some nice ambiant sounds to the visual controlled by the 
mouvement of the form and some physical modeling like (gravity or 
elastic) and applying a video texture to it and why not putting a 
temperature or smoke sensor that affect the form itself.
}

technically speaking, i know it's possible to have artoolkitplus bridge 
to gem, both are in C++. artoolkitplus use digital marker and correct 
the position and light environment, it's really what we need to make 
serious applications (games, installations, musical interface...).

i wish shigeyuki will release is work. max/msp is the clone of pd, but 
not free. it will be a very good start for this project.

patrick

neat! thank you shigeyuki, thank you very much for sharing your work! 
also big up to IOhannes for putting pix_artoolkit in cvs of gem. it 
compile fine and can loadcpara:

[pix_artoolkit]: ARToolKit support by Shigeyuki Hirai
[pix_artoolkit]: loaded camera parameter file:(/me/camera_para.dat)

the only thing is not working is loading a marker:
error: [pix_artoolkit]: can't set marker number 0


MAX_OBJECTS is define in pix_artoolkit.h to 16

void pix_artoolkit :: loadmarkerMess(t_int n, t_symbol *marker_filename)
{
  if  (n > MAX_OBJECTS || n <= 0) {
    error("can't set marker number %d", n);
    return;
  }
  if ((m_object[n - 1].patt_id = ::arLoadPatt(marker_filename->s_name)) 
< 0) {
    error("ARToolKit: pattern load error (%d) !!", m_object[n - 1].patt_id);
    return;
  }
  post("loaded a marker file (%s) as %d...", marker_filename->s_name, n);
  m_object[n].patt_name = marker_filename;
}


is there an error here?
we are close!
pat