PID Turin 2.0
The 3D model (PID for PlanetaryInteractiveDiorama) of the city of Turin 2.0 has been
created by the Ultramundum Foundation with founds from the City Council, mobility
The City Council, on January 29 2008, has decided to officially patronage
the project. This product is derived from 1.0 version,
developed for the 2006 olympic games, and delivers the entire city for free interactive
exploration on a standard personal computer, with an extremely high level of realism in
any portion; being completely open source, its Tabulae (elements at the base of the
Foundation's technology used) will be freely accessible and modifiable by everybody. Turin
has been the first large city to have a complete public three-dimensional model explorable
Until today, only portions of a city have been modeled with similar tecnologies,
because the data load for a model such this, with undhreds of thousands of buildings, has
ever been prohibitive. The Turin 3D model allows for interactive exploration on a standard
personal computer with a low-cost video card. Unusually powerful computers are not
Thanks to the patented UltraPeg technology, this model offers an interactive flight on
all the city with the possibility of descent to the ground level of any single street to
walk among the buildings. Getting altitude the speed increases accordingly to allow for an
exploration experience easy and really natural.
For the development of PIDs, special Automatic Details Generators have been created.
They are sets of Tabulae that are capable of creating realistic models of areas and
elements defined into cartographic databases (buildings, parks, ...) so that a rich and
believable environment is shown, without any need for high-resolution imagery. In this
way, as you can see in the pictures of the product, most places, for instance flowerbeds,
show details of the grass blades and not a simple green cover.
In the 1.0 PID every city building was present, with a prism precisely defining the
ground perimeter and height; in this way the volume was perfectly modelled. in PID 2.0
each city building is created with highly detailed graphics, thanks to the Automatic
Other elements have been added, producing an extremely detailed model that with classic
technologies would have needed many gigabytes. Highly realistic and precise models of
almost every important monument have been inserted, all Turin downtown can be explored
with extreme details.
Thanks to patented UltraPeg technology and specific techniques, the work has been done
in a very short time and at a cost that is a fraction of the one that would have been
needed with conventional technologie. PIDs can and have been used for many purposes: for
new projects study and rendering, in the field of planning, for tourism and promotion of
the city image, as archeological and sociological research labs, for training and so on.
The PID is not a closed software, it is a platfom usable in mady different applications
and can be modifed or expanded at will. Any Tabula, the data structure at the root of
Ultramundum Foundation's UltraPeg technology, can hold multiple data types. For the Turin
city model, informations on buildings positions, maps, areas placements and specific
schematics have been imported from Autocad files and other databases.
The file importer, called UltraTools, allows for fast and almost automatic acquisition
of public databases, converted in a very short time to three-dimensional elements. All
these data can then be explored in real-time. The importer is open source, and can be
adapted to any specific datan format. Ultramundum thanks SOFIHA collaudi s.r.l. for the
cartographic database used in the creation of the model.