I also used an OpenGL 3D routine to generate stereo 3D visualization that I’ve scaled for both a 4k stereo projection theater and a 60″ 3D TV.

I’m interested in some of the skeletal stuff, so I’ll give OpenNI a look.

I’m using Simple OpenNI: http://code.google.com/p/simple-openni It’s cross-platform, comes with a double-click installer for OpenNI and NITE and has pretty extensive support for most of the functionality exposed in OpenNI including extensive access to the skeleton data. I used Shiffman’s when I was first getting started with the Kinect back last October/November, but for the book I need something that has support for the skeleton data. Since Shiffman’s library is based on libfreenect, which doesn’t have a skeleton implementation, there’s no way for him to add it without duplicating a huge amount of the work done in simple-openni.

Shiffman is actually a professor of mine (I guess now technically one of my bosses since I graduated and am now working for the department as a resident researcher). He and I have talked some about merging his library with simple-openni into some kind of mega Processing kinect library that could use either libfreenect or OpenNI and have an API that was possibly more accessible than the raw OpenNI API exposed by simple-openni. That work is only in the very early brainstorming/chatting stages now, though.

Which Processing library are you using for Kinect work? I’d done all my stuff with Paul King’s library, but wanted to give Schiffman’s a look at some point. (His is cross-platform, yes? King’s was Mac-only)