The Ghost Fortress: 3D Reconstruction of San Fernando Castle

Published on May 02, 2026 | Translated from Spanish

San Fernando Castle, in Figueres, is one of the largest bastioned fortresses in Europe, but its interior holds a secret: a vast architectural plan never completed. Armed conflicts and changes in government halted its construction, leaving a stone skeleton that today is a monumental ruin. For 3D modelers, this space represents a unique challenge: the virtual reconstruction of what could have been.

3D reconstruction of San Fernando Castle in Figueres, unfinished bastioned fortress, digital model of historical ruins

Parametric Modeling and Analysis of Construction Phases 🏗️

The technical approach for this project is based on LIDAR scanning of the current state and comparison with 18th-century historical plans. The 3D modeling is divided into two phases: the first generates the existing structure, with its ruined walls and collapsed vaults. The second phase is speculative, reconstructing the troop pavilions, warehouses, and stables that were never built. Using software such as Blender or 3ds Max, wear algorithms are applied to texture the completed areas and a clean finish for the virtual areas, creating a visual contrast that explains the abandonment.

The Value of the Unfinished in Digital Art 🎨

This reconstruction is not only a technical exercise but also a reflection on historical memory. By modeling the ideal plan, the digital artist becomes an archaeologist of the possible. The final renders, showing the complete fortress under daylight, contrast with the shadows of its current empty hallways. The result is a piece that educates about the fragility of human projects in the face of war, a central theme for those seeking to give digital life to the ruins of the past.

Would you animate the collapse process for forensic studies?