DIGITAL REPRESENTATION OF VIRTUAL REALITY ENVIRONMENTS OF GOTHIC CHOIRS USING PHOTOGRAMMETRIC 3D MODELS: MONASTERIES OF YUSTE AND NÁJERA Autores: Carles Pàmies, Isidro Navarro, Alberto Sánchez Riera Escola Superior d’Arquitectura de Barcelona ETSAB – Universitat Politécnica de Catalunya UPC Avinguda Diagonal, 649, 08028 Barcelona Spain pamstv@gmail.com Abstract: The digital capture of environments for their representation through 3D models requires a series of techniques that brings together photogrammetry and 3D modeling for the creation of a Virtual Reality environment. In the specific case of the Gothic choirs, the capture requires a concrete systematization of all the areas through overlapping and series of captures of all the sculpted details to avoid areas without covering or with poor lighting, as well as the complex environment of the church in which the stalls are located. Yuste and Nájera models were created using photographs taken with a DSLR camera. The work suggests that complete sequences should be created from general shots to series of details by very repetitive overlapping for the creation of multiple control points and the creation of effective point cloud. Keywords: Phototogrammetry, Gotic, Gotic Art, 3D models, Virtual Reality, Monastery, Chorus, Yuste, Najera, Spain 1. INTRODUCTION 1.1 BACKGROUND The preservation of heritage through digital technology [1] has evolved to the present day in the form of the creation of 3D models [2] that are saved and used on different platforms and in different utilities. A series of processes [3] need to be generated for the correct digitalisation: 3D digitization, data processing and saving, 3D data archiving and management, 3D data visualization and dissemination, 3D data replication and reproduction. 1.2 OBJECTIVES Digitization of specific closed coral environments in precise detail, for the creation of virtual reality environments. Capturing by means of photographs and overlapping [4] for the creation of clouds of dense points of the elements carved in the maximum detail, for use in different LOD (levels of detail). Software Processing [5] with Reality Capture and exporting in diverse formats for use on different platforms and programs.