From Digital Survey to Extended Reality. Possible Uses for the Cathedral of Udine

The paper investigates the integration of digital survey data and Extended Reality (XR) technologies for the reconstruction and dissemination of cultural heritage, focusing on a sacred architectural context. Through the combination of terrestrial laser scanning, photogrammetry, and archival sources, accurate 3D models of different historical phases of the Cathedral of Udine are generated. These models are structured within an information system that supports continuous updates and the integration of heterogeneous data. The research explores multiple XR applications, including augmented reality panels and mixed reality workstations, designed to accommodate diverse user groups and levels of engagement. The approach emphasizes both scholarly use—supporting hypothesis testing and collaborative analysis—and public dissemination, enhancing accessibility while respecting the specific constraints of a liturgical space.