Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Texture mapping and IFC material retrievement for virtual reality applications

Sebastian Duque Mahecha, Sergi Aguacil Moreno, Alexandre Dennis Stoll, Laurent Deschamps, Tiago De Sousa Pereira
Building2050 group, Ecole Polytechnique Fédérale de Lausanne (EPFL), Fribourg, Switzerland

Abstract: Most current software support the Industry Foundation Classes (IFC) transfer of Building Information Models (BIMs) to applications enabling Virtual Reality (VR) navigation (BuildingSMART, 2020; Kiviniemi, Tarandi, Karlshoj, Bell, and Karud, 2008; Poljansek, 2017). However, a review of current industry practice and scientific literature shows a rupture between the information concerning the materiality of objects stored in the IFC model data and the texture mapping imagesource determining the objects' appearance in VR environments. This document presents an application based on the IfcOpenShell library (IfcOpenShell, 2020), which provides a mapping table allowing to align the retrieved relevant IFC model data to any chosen set of image or pattern files. It produces a DAE file and a linked repertoire defining texture mapping onto model objects visualised in VR. The application also allows the automatic updating after modification of the original model.
Keywords: Building Information Modelling, Industry Foundation Classes, Internet of Things, Immersive Virtual Reality, digital material-textures
Pages: 3129 - 3135