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Ítem Using game engines for wideband channel estimation parameters in Andean cities(IEEE, 2010-04-16) Guevara, DinaelThis paper shows the results obtained with a new raytracing method using an open source game engine and high performance graphic cards for the estimation of path loss and parameters of wide-band channel with high accuracy, for both low or high base-station in some specific outdoor urban Andean scenario as is the Cost 2100 Cali reference scenario. We use the algorithms and techniques developed by the game community together with graphics hardware accelerators for parameters estimation in time and frequency for wide-band channels. We use a 3D model dynamically obtained from raster digital elevation model (DEM) with information about constitutive parameters of materials and compare it with measurements, obtaining a good fit.Ítem Using game engines in ray tracing physics(IEEE, 2010-09-17) Navarro Cadavid, AndrésThis paper shows the used of a complete open source game engine and the significant advanced in computer graphics for applied ray tracing physics techniques in urban environment of propagation. We used techniques and software developed for open source game engine to: 1) The ray tracing physics algorithm for path loss, reflection and multiple diffraction. 2) The efficient use of graphic processing unit (GPU) and the multiple processor of the CPU.Ítem Kroster-Mhp Game For Digital Tv. Developing Process, Design, And Programming Considerations Against Technical Issues(IEEE, 2013-11-01) Navarro Cadavid, AndrésThis paper presents the development of Kroster, a serious game created for digital television using multimedia home platform (MHP) technology. The process of game creation is described from both an engineering and design point of view with discussion on various programming and graphical aspects. Some of the requirements for the development of a t-learning game are described, as are the restrictions associated with the TV platform, especially within the MHP development framework.Ítem Open Source 3D Game Engines For Serious Games Modeling(InTech, 2012-03-07) Navarro Cadavid, AndrésIn this chapter we will review some tools and open source Game Engines used for modeling of real scenarios in serious games for training. One of the typical uses of serious games (3D serious games) is specialized training in dangerous tasks or when the training is quite expensive. However, typical games use artificial scenarios, created by artists and created according to the restrictions imposed by the Game engine used. In our experience, some tasks require the use of a real scenario like a city, forest area, etc, and most of this information is available as Digital Terrain Models in Geographic Information Systems (GIS). The problem here is that GIS formats are not compatible with 3D formats used in Game engines. Then we have to solve the problem of convert the GIS format to a 3D format supported by the Game Engine.