In assenza di intervento. Rappresentazioni digitali di restauri virtuali

The simulation of reality through the techniques of digital representation helps restorers today as it allows them to verify the impact of a restoration even before intervening.This can help to avoid restorations too invasive and to contain erroneous practices that sometimes delete irretrievably the original traces.The paper analyzes some researches on lighting in virtual models that are emblematic of a possible approach.The digital 3D analyzed reconstructions provide not only the spatial and dimensional information but also the chromatic aspects and the characteristics of illumination of an architecture.The development of interactive systems for documentation also allows to visualize the evolution over time of an architecture and to select hypothetical alternatives reconstructions