Yes, its already possible to create 3D images and to show them on the web.
And yes, its also possible create a 3D scene
Papervisions blog show this amazing link.
Video and 3D together. Flabbergasting!! The equipment is al little bit expensive. But if you got the equipment setup, you can make amazing videos.
This is the direct link to the website: click
I'm waiting to implement this technique into the world of www...