In addition to real-world video, we also build photorealistic 3D CGI worlds and render them on our custom-built virtual renderfarms. Using a combination of 3D modelling/animation software and development tools like Unity 3D, Unreal Engine and three.js, we can create almost any environment imaginable, for distribution over any network or device.
Inside the headset, you're transported to a different place with real-time stereoscopic rendering. This might be an "open" environment for you to explore, or a time-sensitive guided virtual tour experience.
Just the type of application to get them queueing round the exhibition hall.