2026-04-17T10:51:17Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/3568842026-02-07T07:10:12Zcom_2072_1033col_2072_452950

Procedural crowd generation for semantically augmented virtual cities Roglà Pujalt, Otger Patow, Gustavo Ariel Pelechano Gómez, Núria Universitat Politècnica de Catalunya. Departament de Ciències de la Computació Universitat Politècnica de Catalunya. ViRVIG - Grup de Recerca en Visualització, Realitat Virtual i Interacció Gràfica Àrees temàtiques de la UPC::Informàtica::Infografia Virtual reality Crowds -- Computer simulation Authoring Procedural modelling Realitat virtual Multituds -- Simulació per ordinador Authoring meaningful crowds to populate a virtual city can be a cumbersome, time-consuming and an error-prone task. In this work, we present a new framework for authoring populated environments in an easier and faster way, by relying on the use of procedural techniques. Our framework consists of the procedural generation of semantically-augmented virtual cities to drive the procedural generation and simulation of crowds. The main novelty lies in the generation of agendas for each individual inhabitant (alone or as part of a family) by using a rule-based grammar that combines city semantics with the autonomous persons’ characteristics. A new population or city can be authored by editing rule files with the flexibility of reusing, combining or extending the rules of previous populations. The results show how logical and consistent sequences of whereabouts can be easily generated for a crowd providing a good starting point to bring virtual cities to life. This work was partly funded by the Spanish Ministry of Economy, Industry and Competitiveness under Grant No. TIN2017- 88515-C2-1-R. Peer Reviewed Postprint (author's final draft) 2021-10 Article Roglà, O.; Patow, G.; Pelechano, N. Procedural crowd generation for semantically augmented virtual cities. "Computers and graphics (Pergamon)", Octubre 2021, vol. 99, p. 83-99. 00978493 https://arxiv.org/abs/1811.10036 https://hdl.handle.net/2117/356884 10.1016/j.cag.2021.06.014 eng https://www.sciencedirect.com/science/article/abs/pii/S0097849321001291 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/TIN2017-88515-C2-1-R/ES/VISUALIZACION, MODELADO, SIMULACION E INTERACCION CON MODELOS 3D. APLICACIONES EN CIENCIAS DE LA VIDA Y ENTORNOS RURALES Y URBANOS/ © 2021 Elsevier https://creativecommons.org/licenses/by-nc-nd/4.0/ Open Access Attribution-NonCommercial-NoDerivatives 4.0 International 17 p. application/pdf