live video with webcam?

[Beamtracer]

Why don't you just create a Quicktime movie (or AVI or whatever) of your camera output, and then use that file as a backdrop? Use a screen capture utility to capture your movie.

[jais]

Hmmm.... Well the idea was that it should be realtime.

[Beamtracer]

In other words, you want to take in live video from a streaming site, composit your animating 3D model live (using the incoming video as a background), and then send the finished result out live as an outgoing video stream.

[jais]

Sorry that I didnt explain the reason for my question. Here goes:
I'm want to make an augmented/mixed reality enviorment for my diploma in the danish architecture school. Now I'm examining different ways to establish this.
One way could be through the viewport of a 3d app.
I would then track a persons movements in real space and have that drive a cg skeleton in the viewport (mocap). Then I would link a cam to the skeletons head/view.
In the real world I would mount a webcam to the real persons head and give him some i-glasses on.
If I could then display the webcam REALTIME in the i-glasses I would have established a parallel virtual world that could be altered and changed REALTIME with the tools of the 3d app.
Is it more clear?

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