3D Video Mapping to Enhance St. Michael’s Fortress in Sibenik

Daniela Rogulj

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December 19, 2019 – As part of the European project “Fortress ReInvented – An Innovative Approach and Digital Content of Historic Fortresses,” the St. Michael’s Fortress in Sibenik will be enhanced thanks to content that interprets historical heritage through digital technology.

Namely, HRTurizam writes that two underground cisterns, dating from the 15th century, have long been hidden in the interior of St. Michael’s Fortress. However, soon the legend of the city’s origin and the turbulent history of the fortress will be brought back to life. 

Namely, the final work is underway to set up a system for projecting 3D video mapping in the cisterns inside the fortress. From January 2020, visitors will be able to experience the history of the town of Sibenik and the fortress through two four-minute spectacles. A total of 34 projectors will be installed in the cisterns to complete the virtual space for mapping purposes, and 16 speakers will create the sound.

The first cistern will share the biblical story about the fight between good and evil, that is, the victory of St. Michael over the dragon, while the second cistern will show the history of the city with a particular emphasis on the role of the St. Michael’s Fortress as the nucleus from which the city originated.

As the latter is housed in cisterns with spatially intersected arches, they have become a watershed element in the development of a scenario-based on time travel: the cistern arches become the ‘wheels’ that start the system and define the year, that is, the period during which passengers (visitors inside the tank) stop and witness it themselves.


The complexity of implementing this project was discussed by Jelena Filipaj, a representative of Production Team, the company responsible for the development of the audio-visual content:

“Reviving cultural heritage with mapping technology is not revolutionary in itself, but so far, at least as far as we are aware, it has never been realized in such small, intimate spaces that bear the stamp of time through the colors of the walls, and from such proximity. The challenge is the curvature of the surface, which completely defines the approach to content creation. To monitor the workflow, that is, to make sure everything fits, complete simulation through virtual reality was required.”

The Fortress ReInvented project covers four partner fortresses in three countries: apart from St. Michael’s Fortress, digital content will also be implemented at the Klis Fortress in Klis, Kanli Kula in Herceg Novi and Vranduk Tower in Zenica.

All the fortresses will receive multimedia guides and touch screens with a common application through which visitors to one of the fortresses will be able to watch what is currently happening at the remaining three. In addition, touch screens will be set up in the old city centers – info-kiosks through which partner fortresses will be presented, cities and small and medium-sized enterprises will be promoted.

The Fortress ReInvented project began on July 1, 2017, and ends December 31, 2019. The project is developed by the Museum of the City of Sibenik in partnership with the Municipality of Klis, the Municipality of Herceg Novi and the Public Institution Museum of the City of Zenica. Its total value is EUR 1,310,232.30, of which 85% is co-financed by the Interreg IPA CBC Croatia – Bosnia and Herzegovina – Montenegro 2014 – 2020 program.

The main objective of the project is to contribute to increasing the sustainability and improving the tourist offer by implementing digital content at four partner fortresses – St. Michael’s Fortress in Sibenik, Klis Fortress in Klis, Kanli Tower in Herceg Novi and Vranduk Fortress in Zenica.

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