I have been following this tutorial http://www.trappers.tk/site/2012/05/02/face-detection-with-core-image-on-live-video/ for adding an image to live video at the face position, however, now I would like to load a 3d object instead of an image, can you give me some hints about it? thx.
You can use NinevehGL view , refer this link it loads 3D Model in a view