Reconstructing the Past, Enhancing the Traces from Frescos

Abstract Architectures are always subject to transformation in time. When a historical building is seen by a tourist or by an occasional visitor, it appears like a complete and final artefact, showing its main characteristics like a clear example of a style or of an artistic phase. This interpretation may turn out to be mostly a simplification, while the building is often the result of a large set of interventions in time. It is the case of a large number of main and secondary architectures, changed according to the mutation of needs and tastes. In Fabriano, in central-eastern Italy, the St. Venanzio Church (later Cathedral) was subject to a significant transformation of the apse interiors during the XVII century, with the demolition of the original chapels’ asset and their replacement by a larger unitarian space behind the main altar. This intervention has afflicted all the frescos that were the decoration of those chapels, they were partially deleted by the new masonry works, covered by paint, or walled in the new shape of the church. Since its early discovery, this patrimony has received various restorations. The research for a virtual reconstruction was based on a detailed digital survey of the building.