Browsing by Author "Besuievsky, Gonzalo"

Now showing 1 - 5 of 5
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    Earthquake Simulation for Ancient Building Destruction
    (The Eurographics Association, 2018) Fita, Josep Lluis; Besuievsky, Gonzalo; Patow, Gustavo; Sablatnig, Robert and Wimmer, Michael
    Research on seismic simulations has been focused mainly on methodologies specially tailored for civil engineering. On the other hand, we have detected a certain lack of this kind of tools for interactive cultural heritage applications, where speed and plausibility are the main requirements to satisfy. We have designed a tool that allows to parameterize and recreate real earthquakes in an accurate, but simple way. Furthermore, we have focused our efforts on those users without much technical experience in geology or seismic simulation, such as historians, art historians, museum curators and other similar stakeholders. We have performed a series of tests over a set of ancient masonry buildings such as walls with their respective battlements, houses and a Romanesque church with structural simulation enabled, thus, allowing the coupling between the earthquake being simulated and the objects of interest. We show the feasibility of including earthquake simulations and structural stability into historical studies for helping the professionals to understand better those events of the past where an earthquake took place.
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    A Level-of-Detail Technique for Urban Physics Calculations in Large Urban Environments
    (The Eurographics Association, 2019) Novoa, David Muñoz; Besuievsky, Gonzalo; Patow, Gustavo; Casas, Dan and Jarabo, Adrián
    In many applications, such as urban physics simulations or the study of the solar impact effects at different scales, complex 3D city models are required to evaluate physical values. In this paper we present a new technique which, through the use of an electrical analogy and the calculation of sky view factors and form factors, allows to simulate and study the thermal behaviour of an urban environment, taking into account the solar and sky radiation, the air and sky temperatures, and even the thermal interaction between nearby buildings. We also show that it is possible, from a 3D recreation of a large urban environment, to simulate the heat exchanges that take place between the buildings of a city and its immediate surroundings. In the same way, taking into account the terrestrial zone, the altitude and the type of climate with which the simulations are carried out, it is possible to compare the thermal behaviour of a large urban environment according to the chosen conditions.
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    Reusable Procedural Building Parts
    (The Eurographics Association, 2022) Arangua, Alejandro; Patow, Gustavo; Besuievsky, Gonzalo; Posada, Jorge; Serrano, Ana
    With the increase in popularity of procedural urban modeling for film, TV, and interactive entertainment, an urgent need for editing tools to support procedural content creation has become apparent. In this paper, we present an end-to-end system for creating a library of reusable procedural parts in a rule-based setting to address this need. No trivial extension exists to perform this action in a way such that the resulting ruleset is ready for production. For procedural reusable parts, we need to handle the rulesets extracted from the source graphs, and later on, merge them with a target graph to obtain a final consistent ruleset. As one of the main contributions of our system, we introduce a library of reusable parts that could be seamlessly glued to other graphs and obtain consistent new procedural buildings. Hence, we focus on intuitive and minimal user interaction, and our editing operations perform interactively to provide immediate feedback.
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    Seismic Simulation on Virtual Reality
    (The Eurographics Association, 2019) Fita, Josep Lluis; Besuievsky, Gonzalo; Patow, Gustavo; Rizvic, Selma and Rodriguez Echavarria, Karina
    Virtual Reality has been used in Cultural Heritage for providing immersive experiences of recreated and static environments to the final user. However, there is a lack of virtual reality applications for recreating natural phenomena like earthquakes in combination with structural simulations over ancient masonry buildings. In this paper, we describe a solution affordable for all kind of users and designed for running on low-cost devices, where users can have an immersive experience in a virtual environment, where the structural and seismic simulation affects a historical building.
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    A Virtual Reality Front-End for Earthquake Simulation
    (The Eurographics Association, 2019) Fita, Josep Lluis; Besuievsky, Gonzalo; Patow, Gustavo A.; Casas, Dan and Jarabo, Adrián
    Virtual Reality has traditionally been used in Cultural Heritage for giving to the final user an immersive experience over recreated scenarios, which usually have been designed and focused on static environment recreation. In spite of its importance for cultural heritage, we have found a lack of virtual reality applications to recreate structural and seismic simulations on historical buildings. In this paper we describe a low-cost virtual reality solution, affordable for all kinds of users that own a smart-phone. Through our application, the users can have an immersive experience that combines the ancient building recreation, its structural simulation and the natural phenomena simulation like earthquakes.