Apple’s face camera just projects some light dots on your face and has very limited range. Its not much of a real 3D camera at all and literally just for very closeup use on a human face.
The Stereolabs camera on the other hand is a true Stereo 3D camera that can see and scan in 3D for up to 60 feet. And not just faces. Anything it sees.
This means that with the right software or C4D plugin, a Stereolabs camera will probably be able to do full face and body motion capture, and probably at the same time as well.
You could set it up on your workstation monitor, stand a few feet back from it and do a dance routine in front of it that gets transformed into Mocap data.
If you are looking for such a solution for C4D, find some other interested people and take a few minutes to email the people at Stereolabs and Intel to let them know such a function is desired.
They may already be rolling Mocap software based on their 3D cameras. But they may not be aware at all that C4D users, for example, are willing to pay for such a software.
Unlike Kinect and the Apple face camera, these new Stereo 3D cameras are designed for real robotic vision applications.
Mocap is one of those applications, and the software to make this happen may already be in development. They are just not showing it yet.
If Intel and Stereolabs are not willing to do it themselves, these cameras are open to all - a C4D plugin developer may be able to roll together the necessary C4D motion or 3D model capture plugin.