image/svg+xml145 VIII/2/2017 InterdIscIplInarIa archaeologIca natural scIences In archaeology homepage: http://www.iansa.eu Virtual Archaeology: Remains of a Roman Villa in the Bay of Stari Trogir, Central Dalmatia Nika Lužnik Jancsary a,b* a University of Ljubljana, Faculty of Arts, Aškerčeva c. 2, 1000 Ljubljana, Slovenia b Ludwig Boltzmann Institute for Archaeological Prospection and Virtual Archaeology, Hohe Warte 38, 1190 Vienna, Austria 1. Introduction In the feld of conservation and interpretation of archaeological heritage, the importance of documenting and presenting heritage virtually increases every year. Virtual environments are a privileged way of distributing the knowledge of cultural and scientifc themes. The interest in computer graphics has therefore been present in these felds for quite some time and has eventually led to the establishment of the felds of virtual archaeology (see Reilly 1990) and virtual cultural heritage; for example (Addison 2000; Berndt, Carlos 2000). Furthermore, with the technological development that is more and more capable of reproducing the lost heritage for the purposes of research and representation, this interest only keeps increasing. All this brings additional responsibility for scientifcally evaluated visualizations, as described more thoroughly in charters like Principles of Seville (2011) and The London Charter (2009). These guidelines suggest that visualization should strive for historical rigour, authenticity, scientifc transparency, and should also be made accessible.The advantage of computer visualizations in this context is that they enable the evaluation of models better than any other type of media and at the same time provide a comprehensive understanding of the monument. In the virtual model, for instance, the relationship between the building and the surrounding terrain is visible, and the placement of diferent architectural features can be tested on a virtual terrain. By positioning the virtual camera on various points of interest, viewshed analysis can be performed. It also enables a physical simulation of daylight or water tide. The mass of the building material, and consequently also the building time, can be calculated. Moreover, the volume of structures is easily measurable, such that, for example, the amount of fsh that could be raised in a particular breeding pool can be calculated.Computer visualizations can also present interactively the possible reconstructions of the monuments on site. This way, the authenticity of the monuments can be preserved – and there is no need for them to be subjected to a contemporary reconstruction (Pirkovic 2003).In this context, a virtual presentation most signifcantly benefts a site that is at the moment undervalued in the eyes of the public. The public understanding of its signifcance in the past and its connection with the present day could Volume VIII ● Issue 2/2017 ● Pages 145–155 *Corresponding author. E-mail: nika_luznik@outlook.com Article info Article history: Received: 14 th March 2017Accepted: 13 th December 2017DOI: http://dx.doi.org/ 10.24916/iansa.2017.2.4 Key words: virtual archaeology Roman archaeology visualizationRoman villanon-photorealistic reconstruction ABStrAct The paper focuses on the challenges of creating a computer visualization of a site with scarce source data, originally gathered for documentation purposes only. The particular site considered in this article is a Roman maritime villa in the bay of Stari Trogir, Central Dalmatia, Croatia. The well-preserved remains are constantly under threat of destruction, as they are exposed to local construction work. First described in the 17 th century, and sporadically researched from the early 20 th century, the remains were again newly documented and interpreted in 2004. They are especially interesting because of their peculiar semi-circular structure. The objective in the present work is to create virtual presentations of multiple interpretations of the site, to tell a story about the locals’ home. This should encourage an emotional connection with the remains and induce respect towards the place’s history, as well as the desire to preserve and protect it.
image/svg+xmlIANSA 2017 ● VIII/2 ● 145–155Nika Lužnik Jancsary: Virtual Archaeology: Remains of a Roman Villa in the Bay of Stari Trogir, Central Dalmatia 146 once again turn it into a building block of local, regional and national identity and involve locals and visitors on a personal level (Vidrih-Perko 2008; Merriman 2004; Sola 1985). With these considerations in mind, the present work aims at raising awareness for a particular site that fts the above characteristics, by drawing on computer aided visualization. The context of this work is a research project comprising three diferent levels: (1) computer visualization of the site; (2) implementation of the visualization, making it available to the public; and (3) later evaluation of the success.From the data available to the Department of Archaeology (University of Ljubljana) for a case study of this kind, the site of Roman remains in the bay of Stari Trogir near Trogir in Central Dalmatia, Croatia was chosen (Figure 1, Figure 2 and Figure 7). The overall project is still ongoing, with the current frst stages being to establish a virtual model of the archaeological interpretation of the site. At this point, valuable experience has already been collected on how to visualize the information that is intended to be conveyed, and a suitable visualization workfow has been established. These issues will be the main focus of this article. In future stages of the project, a quality heritage interpretation will furthermore be conducted, which is a prerequisite for better understanding of the archaeological fnds by the general