The Cathedral of San Salvador in Oviedo is known for its asymmetrical profile, the result of a single Gothic tower completed on its western façade. The original design envisioned twin towers, but a lack of financial resources during construction halted the work, leaving an architectural scar that now defines its silhouette. In this article, we will explore how 3D modeling tools can virtually reconstruct the missing tower, allowing us to analyze the visual and structural impact of this historical absence.
Parametric Modeling and Virtual Reconstruction of the West Elevation 🏗️
To technically approach this project, we will start from the photogrammetric survey of the existing tower, capturing its tracery, buttresses, and pinnacles. Using modeling software such as Blender or 3ds Max, we will replicate the geometry of the south tower on the north side, respecting the specular symmetry of the original Gothic design. The greatest challenge lies in the base: the missing tower never had complete foundations, so the model must integrate a plausible structural hypothesis, supported by medieval masonry treatises. The visual comparison between the current model (asymmetrical) and the reconstructed version (symmetrical) will be rendered in a natural light environment to evaluate how shadow and mass change the perception of the monument.
The Value of the Unfinished: Lessons for Digital Heritage 🏛️
Beyond the technical exercise, this reconstruction forces us to reflect on the ethics of virtual restoration. The asymmetry of the Cathedral of Oviedo is not a mistake, but a testament to the economic and social history of its time. By modeling the lost tower, we do not seek to correct the past, but to understand it better. Ruin, in this context, is not just fallen stone, but a design decision frozen in time. Our work as modelers is to document that absence with the same precision as presence.
What technical and methodological challenges does the 3D reconstruction of the unfinished tower of the Cathedral of Oviedo present in maintaining stylistic coherence with the rest of the Gothic building?
(PS: Reconstructing ruins is like doing a puzzle without knowing how many pieces are missing. But at least you can make up the missing ones.)