Now showing items 1-14 of 14

    • A comparative study of navigation meshes 

      Van Toll, Wouter; Triesscheijn, Roy; Kallmann, Marcello; Oliva Martínez, Ramon; Pelechano Gómez, Núria; Pettré, Julien; Geraerts, Roland (Association for Computing Machinery (ACM), 2017)
      Conference report
      Restricted access - publisher's policy
      A navigation mesh is a representation of a 2D or 3D virtual environment that enables path planning and crowd simulation for walking characters. Various state-of-the-art navigation meshes exist, but there is no standardized ...
    • A generalized exact arbitrary clearance technique for navigation meshes 

      Oliva Martínez, Ramon; Pelechano Gómez, Núria (ACM, 2013)
      Conference report
      Open Access
      There are two frequent artifacts in crowd simulation, the first one appears when all agents attempt to traverse the navigation mesh sharing the same way point over portals, increasing the probability of collision against ...
    • A separate reality : An update on place Illusion and plausibility in virtual reality 

      Slater, Mel; Banakou, Domna; Beacco Porres, Alejandro; Gallego Vila, Jaime; Macia Varela, Francisco; Oliva Martínez, Ramon (2022-06-27)
      Article
      Open Access
      We review the concept of presence in virtual reality, normally thought of as the sense of “being there” in the virtual world. We argued in a 2009 paper that presence consists of two orthogonal illusions that we refer to ...
    • An embodied perspective as a victim of sexual harassment in virtual reality reduces action conformity in a later Milgram obedience scenario 

      Neyret, Solène; Navarro Muncunill, Xavier; Beacco Porres, Alejandro; Oliva Martínez, Ramon; Bourdin, Pierre; Valenzuela Ruiz, Jose; Barberia, Itxaso; Slater, Mel (Nature, 2020-04-10)
      Article
      Open Access
      Group pressure can often result in people carrying out harmful actions towards others that they would not normally carry out by themselves. However, few studies have manipulated factors that might overcome this. Here male ...
    • ANAVMG: Automatic generation of suboptimal Navmeshes for 3D virtual environments 

      Oliva Martínez, Ramon (Universitat Politècnica de Catalunya, 2012-09-05)
      Master thesis
      Open Access
    • Clearance for diversity of agents’ sizes in navigation meshes 

      Oliva Martínez, Ramon; Pelechano Gómez, Núria (2014-12-04)
      Article
      Open Access
      There are two frequent artifacts in crowd simulation caused by navigation mesh design. The first appears when all agents attempt to traverse the navigation mesh and share the same way points through portals, thus increasing ...
    • Comparing navigation meshes: Theoretical analysis and practical metrics 

      van Toll, Wouter; Triesscheijn, Roy; Kallmann, Marcello; Oliva Martínez, Ramon; Pelechano Gómez, Núria; Pettré, Julien; Geraerts, Roland (2020-10)
      Article
      Open Access
      A navigation mesh is a representation of a 2D or 3D virtual environment that enables path planning and crowd simulation for walking characters. Various state-of-the-art navigation meshes exist, but there is no standardized ...
    • Disturbance and plausibility in a virtual rock concert: a pilot study 

      Beacco Porres, Alejandro; Oliva Martínez, Ramon; Cabreira Sánchez, Carlos; Gallego Vila, Jaime; Slater, Mel (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      We present methods used to produce and study a first version of an attempt to reconstruct a 1983 live rock concert in virtual reality. An approximately 10 minute performance by the rock band Dire Straits was rendered in ...
    • Evaluating participant responses to a virtual reality experience using reinforcement learning 

      Llobera Mahy, Joan; Beacco Porres, Alejandro; Oliva Martínez, Ramon; Senel, Gizem; Banakou, Domna; Slater, Mel (Royal Society, 2021-09-15)
      Article
      Open Access
      Virtual reality applications depend on multiple factors, for example, quality of rendering, responsiveness, and interfaces. In order to evaluate the relative contributions of different factors to quality of experience, ...
    • A framework for navigation of autonomous characters in complex virtual environments 

      Oliva Martínez, Ramon (Universitat Politècnica de Catalunya, 2016-11-28)
      Doctoral thesis
      Open Access
      In order to create autonomous characters it is necessary to solve the problem of moving agents between two locations, at both the global and local navigation levels. Global navigation has two main components: the path ...
    • QuickVR: A standard library for virtual embodiment in unity 

      Oliva Martínez, Ramon; Beacco Porres, Alejandro; Slater, Mel (2022-09-15)
      Article
      Open Access
      In the last few years the field of Virtual Reality (VR) has experienced significant growth through the introduction of low-cost VR devices to the mass market. However, VR has been used for many years by researchers since ...
    • Self-observation of a virtual body-double engaged in social interaction reduces persecutory thoughts 

      Gorisse, Geoffrey; Senel, Gizem; Banakou, Domna; Beacco Porres, Alejandro; Oliva Martínez, Ramon; Freeman, Daniel; Slater, Mel (Nature, 2021-12-14)
      Article
      Open Access
      The proportion of the population who experience persecutory thoughts is 10–15%. People then engage in safety-seeking behaviours, typically avoiding social interactions, which prevents disconfirmatory experiences and hence ...
    • The making of a newspaper interview in virtual reality: realistic avatars, philosophy, and sushi 

      Oliva Martínez, Ramon; Beacco Porres, Alejandro; Gallego Vila, Jaime; Gallego Abellan, Raul; Slater, Mel (2023-11)
      Article
      Open Access
      VR United is a virtual reality application that we have developed to support multiple people simultaneously interacting in the same environment. Each person is represented with a virtual body that looks like themselves. ...
    • The sentiment of a virtual rock concert 

      Slater, Mel; Cabriera, Carlos; Senel, Gizem; Banakou, Domna; Beacco Porres, Alejandro; Oliva Martínez, Ramon; Gallego Vila, Jaime (2022-08-23)
      Article
      Open Access
      We created a virtual reality version of a 1983 performance by Dire Straits, this being a highly complex scenario consisting of both the virtual band performance and the appearance and behaviour of the virtual audience ...