“Filming” a video within a virtual world designed for other purposes (mainly video games and virtual worlds such as Second Life), using the world’s scenery, avatars, and sometimes music etc, but typically providing voiceovers, new music and other elements not from the virtual environment.

A few well-regarded examples.

Red vs Blue (episode one)

The French Democracy

Second Bodies (documentary shot half within Second Life and half live)

The Awakening