Multi-Camera Workflow Applied to a Cultural Heritage Building: Alhambra’s Torre de la Cautiva from the Inside

It is increasingly necessary to generate accessible and navigable digital representations of historical or heritage buildings. This article explains the workflow that was applied create such a component for one least areas Alhambra palace in Granada, so-called Torre de la Cautiva (Tower Captive). The main goal this process affordable, photorealistic 3D models contribute dissemination cultural heritage, decision making its conservation restoration, public engagement entertainment. With enough preparation, time spent gathering data following Structure from Motion (SfM) approach can be significantly reduced by using multi-camera (low cost DSLR) photogrammetric strategy. Without possibility artificial lighting, it essential use RAW images calibrate color scene material texture characterization. Through processing, amount optimizing model’s topology. Thus, result obtained could managed visualized immersive Visual Reality (VR) environments, simulating different periods environmental lighting conditions. potential method allows, with slight modifications, creation HBIMs adaptation VR systems development, whose current visualization quality below resolution actionable rendering engines.