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Natural steering behaviors for virtual pedestrians

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Abstract

The animation of humanoids in real-time applications is yet a challenge if the problem involves attaining a precise location in a virtual world (path-planning), moving realistically according to its own personality, intentions and mood (motion planning). In this paper we propose a formally complete and low-cost solution based upon boundary value problems (BVP) to control steering behaviors of characters in dynamic environments. We use a potential field formalism that allows synthetic actors to move negotiating space, avoiding collisions, and attaining goals, while producing very individual paths. The individuality of each character can be set by changing its inner field parameters leading to a broad range of possible behaviors without jeopardizing its performance. To illustrate the technique potentialities, some results exploring situations as steering behavior in corridors with collision avoidance and competition for a goal, and searching for objects in unknown environments are presented and discussed. A proposal to automatically change the size of the field of view of each agent, producing different behaviors is also a contribution of this paper. Some comments about performance are also made to help the reader to evaluate the potential of the method.

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Authors and Affiliations

  1. Institute of Informatics, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, Campus do Vale–Bloco IV, Porto Alegre, RS, 91501-970, Brasil

    Renato Silveira, Fábio Dapper, Edson Prestes & Luciana Nedel

Authors
  1. Renato Silveira
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  2. Fábio Dapper
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  3. Edson Prestes
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  4. Luciana Nedel
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Correspondence to Renato Silveira.

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Silveira, R., Dapper, F., Prestes, E. et al. Natural steering behaviors for virtual pedestrians. Vis Comput 26, 1183–1199 (2010). https://doi.org/10.1007/s00371-009-0399-0

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