UDMV: EG Workshop on Urban Data Modelling and Visualisation

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https://diglib.eg.org/handle/10.2312/450

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Browsing UDMV: EG Workshop on Urban Data Modelling and Visualisation by Subject "Animation"

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    Interactive Low-Cost Wind Simulation For Cities
    (The Eurographics Association, 2016) Rando, Eduard; Muñoz, Imanol; Patow, Gustavo; Vincent Tourre and Filip Biljecki
    Wind is an ubiquitous phenomenon on earth, and its behavior is well studied in many fields. However, its study inside a urban landscape remains an elusive target for large areas given the high complexity of the interactions between wind and buildings. In this paper we propose a lightweight 2D wind simulation in cities that is efficient enough to run at interactive frame-rates, but also accurate enough to provide some prediction capabilities. The proposed algorithm is based on the Lattice-Boltzmann Method (LBM), which consists of a regular lattice that represents the fluid in discrete locations, and a set of equations to simulate its flow. We perform all the computations of the LBM in CUDA on graphics processors for accelerating the calculations.
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    Interactive Techniques for Populating Large Virtual Cities
    (The Eurographics Association, 2013) Jordao, Kevin; Pettré, Julien; Cani, Marie-Paule; Vincent Tourre and Gonzalo Besuievsky
    For many applications, exploring empty virtual cities is not sufficient: streets and squares need to be populated by crowds of virtual humans. This position paper addresses the problem of generating such crowds when the scale of the city prevents the use of standard simulation methods. We first present the concept of crowd patches and review their advantages and drawbacks for animating large crowds of people. We then discuss the goals of our future work, namely being able to interactively design such large populations.