Additive manufacturing is the process of joining materials to make objects from 3D model data, usually layer upon layer.

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The laptop uses the GPS data to maintain a 3D model which keeps the vehicle correctly positioned in the virtual world, and much "like a novel, " the story unfolds as different turns (ahem) take place based on the decisions players make.

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The British Geological Survey has offered access to its data for the project, including a 3D model of the city, while the work will be done by PHD student Emma Church, part-funded by Scottish Power.

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That data is then decoded by an imager to create a 3D model of everything inside the room.

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