A Point Cloud-Based Multi-Platform Application to Support the Conservation Project of Medieval Stone Architecture

The paper presents a multi-platform application based on point cloud data to support the conservation and dissemination of a medieval stone village. The workflow integrates 3D survey techniques—laser scanning, mobile mapping, and photogrammetry—to generate temporal datasets documenting different stages of restoration. Instead of relying on mesh-based reconstruction, the study proposes the direct use of point clouds as rendering primitives within interactive environments developed in Unity. The application is designed for multiple platforms (mobile AR, PC/web, and VR), each tailored to specific user needs and hardware constraints, enabling both professional access to detailed documentation and public engagement through immersive storytelling. The system incorporates interactive features such as time-travel navigation, point cloud visualization control, and narrative content layers, positioning the project as a hybrid tool for conservation support, education, and virtual heritage exploration.