Abstract: The article examines the last stage of the existence of the Chudov Monastery of the Moscow Kremlin in its last decades. This period is one of the least studied in the history of the monastery, and yet, it is at this time that both the personal dramas of the inhabitants of the monastery before the closure of the monastery and the procedure for transferring valuables to the Armory that began immediately are exposed. Using the example of the monastery, we see how the new government forms a position regarding valuable monuments. It is noteworthy that the inhabitants of the monastery believed to the last that they would be able to find a compromise solution and leave at least a few monks to guard the monastery and perform divine services, but, unfortunately, the plans of the new government were completely different. In parallel with the process of evicting the monks, there is a struggle for the preservation of the complex exclusively as a monument of architecture and culture, where the main role is played by the Department for Museums and the protection of monuments of Art and antiquity, in those years it was headed first by I. Grobar, and a little later it was replaced by N.Sedova-Trotskaya, which led to the strengthening of the department - this allowed us to do a lot for the preservation of monuments. The work introduces new sources that describe in detail the plot of the relationship between the monastery and the new government, the scrupulousness of preparing for the restoration of the monastery and the feat that scientists performed to save the monument from further destruction as a result of shelling. But all the efforts of scientists for the restoration were in vain, in a great hurry, on the night of December 16-17, 1929, the Cathedral of the Miracle of Archangel Michael was blown up. The restorers did not have time to finish the work on measurements, photo fixation, and even save the frescoes already removed from the walls, which were prepared for museumification.

Abstract: The article sets a problem focusing on how to optimize the order of 3D user interface for virtual reconstruction of Moscow historical center landscape in the 16th-18th centuries. To work with the interface a virtual reality headset, a motion tracking system and an eye-tracker were integrated. Spatial representation of the historical reconstruction is accompanied by a specialized interface that allows one to access the source database. The authors introduce a criterion that provides for estimating the optimum order of interface elements in the virtual space. The problem is handled in case there are unknown factors such as the size of user's hands, deviations in the position of an interactive object and restrictions related to the disposition of interface elements. The article sets the general problem and solves some internal problems related to the construction of acceptable multiple dispositions of interface elements and the modeling of eyesight movement from one interface element to another. The article is the first to suggest an algorithm to numerically optimize the interface in 3D virtual space modeling the relief and historical buildings in the center of Moscow. It provides for user’s movement and gives access to historical sources which are the basis for virtual reconstruction of the heritage understudy.

Abstract: The article puts forward a new approach to the development of virtual reconstruction of historical and cultural heritage objects that is based on the advanced 3D modeling technologies and addresses the issues of historical urban science. Along with sociocultural significance and architectural importance of the lost cultural heritage objects (convent complex in this case) for virtual reconstruction tasks, an important criterion for their selection is the preservation rate of the source base. The article focuses on the use of virtual and augmented reality technologies in historical reconstruction tasks. As an additional opportunity to “plunge” into the historical past, the authors propose the creation of historical panoramas to use them in pads or smartphones. The article also studies the technology associated with the use of VR HMD. 3D modeling, digital sculpting, photogrammetry of monuments, layer projection technologies form an important part of methods used in this work. The article is the first in Russian historiography to address the practical use of virtual and augmented reality technologies to reconstruct the lost objects of the historical building system (by the example of Strastnoy Convent). The authors test the software module that validates / verifies the results of virtual reconstruction as well as enhances representation and visualization opportunities of these results. The authors simulate the augmented reality within the virtual reality and thus overcome limitations of AR.