Abstract. The transition from Cultural Heritage (CH) digital documentation to dynamic, experiential heritage requires versatile workflows that engage diverse audiences. This paper proposes a scalable, multimodal eXtended Reality (XR) framework for the Torre del Mar (Castellón, Spain) and demonstrates how a single high-fidelity dataset can generate a comprehensive ecosystem of interactive experiences. Starting from a multi-source data fusion of UAV photogrammetry and Terrestrial Laser Scanning (TLS), a master model was developed to drive three distinct interaction pipelines. First, a phygital interface combines a modular, disassemblable 3D-printed replica with model-based Augmented Reality (AR), enabling tangible exploration of constructive details. Second, a collaborative Mixed Reality (MR) environment allows remote experts to co-inhabit the digital space for real-time analysis. Third, a multi-tiered Virtual Reality (VR) strategy optimizes the asset for PC-tethered, standalone, and WebVR platforms, balancing graphical fidelity with accessibility. The results validate a reproducible methodology that transforms technical survey data into an active knowledge system, effectively bridging the gap between scientific preservation and public dissemination while ensuring the long-term valorization of digital heritage assets.
Pupi et al. (Thu,) studied this question.