Hi

English is not my main language so I'm having problems with what I thank I'm not using the right search terms on Google in order to find stock 3d videos..
those where one put a spokeperson doing a presentation with green screen, maybe walks around a bit etc, like being on a virtual office, building etc.

The typical is that those videos use like an animation sequence with zoom ins and zoom outs with the spoke person being "atached" automathically to certain spot in the 3D space and reacts to the virtual camera angle, etc.

How or where or do anyone knows a solutions for these?

Is there a special software that takes your spoke person video presentation and then ataches it and synchronize it to the 3D background template?
I guess those 3D stages are actually not premade but more of generated auytomathically according to the presentation
or something like that

any ideas

thank you very much