• openAccess   Design of a multiuser virtual trade fair using a game engine 

      Remolar, Inmaculada; Chover, Miguel; Quirós Bauset, Ricardo; Gumbau Portalés, Jesús; Castelló Boscá, Pascual; Rebollo Santamaría, Cristina; Ramos, Jose Francisco Springer (2011)
      The current world economic situation makes it necessary to develop new ways of establishing commercial relationships. One possible solution is to explore the advantages of virtual worlds, and for this reason online virtual ...
    • closedAccess   Developing a virtual trade fair using an agent-oriented approach 

      Remolar, Inmaculada; Garcés Calvelo, Alejandro; Rebollo Santamaría, Cristina; Chover, Miguel; Quirós Bauset, Ricardo; Gumbau Portalés, Jesús Springer (2015)
      Online virtual trade fairs are becoming a popular way of establishing economic trade relationships nowadays. In the current context of the world economy, new ways of creating virtual environments where suppliers can show ...
    • closedAccess   Rendering continuous level-of-detail meshes by Masking Strips 

      Ripollés Mateu, Oscar Enrique; Chover, Miguel; Gumbau Portalés, Jesús; Ramos, Jose Francisco; Puig Centelles, Anna Elsevier (2009)
      In this paper we present a new continuous multiresolution approach which has been developed for the interactive visualization of meshes in real-time applications. Our interest is to offer an efficient solution which considers ...
    • closedAccess   Separable soft shadow mapping 

      Buades, José María; Gumbau Portalés, Jesús; Chover, Miguel Springer (2015-02)
      We propose an efficient technique for rendering visually plausible real-time soft shadows in screen space. First, we propose a novel blocker estimation technique based on a separable filter. Second, our technique performs ...
    • closedAccess   Simplification method for textured polygonal meshes based on structural appearance 

      González Ballester, Carlos; Castelló Boscá, Pascual; Chover, Miguel; Sbert Casasayas, Mateu; Feixas, Miguel; Gumbau Portalés, Jesús Springer-Verlag (2013-05)
      This paper proposes an image-based simplification method for textured triangle meshes that preserves the structural appearance of textured models. Models used in interactive applications are usually composed of textured ...
    • closedAccess   Smooth shadow boundaries with exponentially-warped gaussian filtering 

      Gumbau Portalés, Jesús; Sbert Casasayas, Mateu; Szirmay-Kalos, László; Chover, Miguel; González Ballester, Carlos Elsevier (2013-05)
      Shadow mapping is widely used in computer graphics for efficiently rendering shadows in real-time applications. Shadow maps cannot be filtered as regular textures, thus their limited resolution can cause severe shadow map ...
    • closedAccess   Three-dimensional trees for virtual globes 

      Rebollo Santamaría, Cristina; Remolar, Inmaculada; Gumbau Portalés, Jesús; Chover, Miguel Taylor & Francis (2014)
      One of the problems in virtual globes technologies is the real-time representation of vegetal species. In forest or garden representations, the low detailed plants produce a lack of realism. Efficient techniques are required ...
    • closedAccess   User-assisted simplification method for triangle meshes preserving boundaries 

      González, Carlos; Gumbau Portalés, Jesús; Chover, Miguel; Ramos, Jose Francisco; Quirós Bauset, Ricardo Elsevier (2009)
      This paper proposes a user-assisted mesh simplification method applied to CAD models converted to triangle meshes. This work offers the possibility of simplifying each subobject independently and at different levels of ...
    • closedAccess   View-dependent pruning for real-time rendering of trees 

      Gumbau Portalés, Jesús; Chover, Miguel; Remolar, Inmaculada; Rebollo Santamaría, Cristina Elsevier (2011-04)
      The main problem in the real-time rendering of vegetation is the massive amount of primitives to be rendered. These primitives are needed to fully describe the geometry of the plants. However, some of them are not visible ...