hi
i am trying to convert a sample of a AR into C++
i have created the window and a the card maker into c++ but i don know who to use the openCVtexture
can some one help me please
i put the ar sample in python and my version in c++
python example
from pandac.PandaModules import *
loadPrcFileData("", "auto-flip 1") #usualy the drawn texture lags a bit behind the calculted positions. this is a try to reduce the lag.
from direct.directbase import DirectStart
from direct.task import Task
from time import sleep
#------use OpenCVTexture under linux---------- use WebcamVideo under windows------------
tex = OpenCVTexture()
#---------------------
tex.setTexturesPower2(0)
#if you want to know what assert is doing.. ask pro-rsoft. all i know is, it prevents an assertion error :D
assert tex.fromCamera(0)
#create a card which shows the image captured by the webcam.
cm = CardMaker("background-card")
cm.setFrame(-1, 1, 1, -1)
card = render2d.attachNewNode(cm.generate())
card.setTexture(tex)
#set the rendering order manually to render the card-with the webcam-image behind the scene.
base.cam.node().getDisplayRegion(0).setSort(20)
#load a model to visualize the tracking
axis = loader.loadModel("sofa.egg")
axis.reparentTo(render)
axis.setScale(.2)
#initialize artoolkit, base.cam is our camera ,
#the camera_para.dat is the configuration file for your camera. this one comes with the artoolkit installation.
#last paremeter is the size of the pattern in panda-units.
ar = ARToolKit.make(base.cam, "./camera_para.dat", 1)
#attach the model to a pattern so it updates the model's position relative to the camera each time we call analyze()
ar.attachPattern("./patt.kanji", axis)
#updating the models positions each frame.
def updatePatterns(task):
ar.analyze(tex, False)
return Task.cont
sleep(1) #some webcams are quite slow to start up so we add some safety
taskMgr.add(updatePatterns, "update-patterns",-100)
run()c++ example
// Include all the stuff
#include "pandaFramework.h"
#include "pandaSystem.h"
#include "movieTexture.h"
#include "cardMaker.h"
#include "openCVTexture.h"
PandaFramework framework;
//Global variables
PT(MovieTexture) tex = new MovieTexture("name");
int main(int argc, char *argv[]) {
framework.open_framework(argc, argv);
framework.set_window_title("My Panda3D Window");
WindowFramework *window = framework.open_window();
TextureStage *stage;
LVecBase2f scale;
tex->read("PandaSneezes.avi");
//Setup a fullscreen card to set the video texture on.
CardMaker cm = CardMaker::CardMaker("My Fullscreen Card");
cm.set_frame_fullscreen_quad();
cm.set_uv_range(tex);
NodePath *card = new NodePath(cm.generate());
card->reparent_to(window->get_render_2d());
card->set_texture(tex);
scale = tex->get_tex_scale();
card->set_tex_scale(stage->get_default(), scale);
//do the main loop, equal to run() in python
framework.main_loop();
//close the window framework
framework.close_framework();
return (0);
}