Computer Animation and Virtual Worlds

Cover image for Vol. 21 Issue 6

November/December 2010

Volume 21, Issue 6

Pages 545–595

  1. Editorial

    1. Top of page
    2. Editorial
    3. Research Articles
    1. Editorial (page 545)

      Nadia Magnenat-Thalmann and Daniel Thalmann

      Version of Record online: 26 NOV 2010 | DOI: 10.1002/cav.384

  2. Research Articles

    1. Top of page
    2. Editorial
    3. Research Articles
    1. Provision and maintenance of presence and immersion in hand-held virtual reality through motion based interaction (pages 547–559)

      Jane Hwang and Gerard J. Kim

      Version of Record online: 26 NOV 2010 | DOI: 10.1002/cav.336

      Thumbnail image of graphical abstract

      We show that motion based interaction widens the perceived field of view more than the actual field of view, and increase the sense of presence and immersion comparable to that of VR systems with larger displays. We hypothesize that this phenomenon is related to the way human vision system compensates for differences in acuity resolution through the saccadic activity. The paper demonstrates the distinct possibility of realizing reasonable virtual reality with small visual field of view and limited processing power..

    2. Inextensible elastic rods with torsional friction based on Lagrange multipliers (pages 561–572)

      Jonas Spillmann and Matthias Harders

      Version of Record online: 26 NOV 2010 | DOI: 10.1002/cav.362

      Thumbnail image of graphical abstract

      In this work, a deformation model for inextensible elastic rods, based on a Lagrangian formulation, is proposed. Examples from the fields of animation and medical simulations are presented.

    3. Fuzzy cognitive maps for the simulation of individual adaptive behaviors (pages 573–587)

      C. Buche, P. Chevaillier, A. Nédélec, M. Parenthoën and J. Tisseau

      Version of Record online: 26 SEP 2010 | DOI: 10.1002/cav.363

      Thumbnail image of graphical abstract

      This article presents the use of fuzzy cognitive maps (FCMs) as a tool to specify and control the behavior of agents. We describe how fuzzy cognitive maps can be used to model individual behavior and we present a learning algorithm allowing the adaptation of FCMs through observation.

    4. Particle-based realistic simulation of fluid–solid interaction (pages 589–595)

      Hongquan Sun and Jiqing Han

      Version of Record online: 8 NOV 2010 | DOI: 10.1002/cav.379

      Thumbnail image of graphical abstract

      For simulating the two-way coupling of fluid and solid in an efficient fashion, the solid is treated as a special fluid constrained to rigid body motion. The total force and torque exerted on solids is firstly worked out according to the impulse–momentum theorem, and then the movement of these rigid bodies is restricted to translations and rotations. In order to prevent the fluids particles leaking into solids, a detection and correction procedure is presented.