Interactive design of 3-D computer-animated legged animal motion

ABSTRACT

We present a visually interactive approach to the design of 3-D computer-animated legged animal motion in the context of the PODA computer animation system. The design process entails the interactive specification of parameters which drive a computational model for animal movement. The animator incrementally modifies a framework for establishing desired limb and body motion as well as the constraints imposed by physical dynamics (Newtonian mechanical properties) and temporal restrictions. PODA uses the desired motion and constraints specified by the animator to produce motion through an idealized model of the animal's adaptive dynamic control strategies.

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INDEX TERMS

Primary Classification:
  I. Computing Methodologies
  I.3 COMPUTER GRAPHICS
      I.3.7 Three-Dimensional Graphics and Realism
          Subjects: Animation

Additional Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.1 Multimedia Information Systems
          Subjects: Animations

  I. Computing Methodologies
  I.2 ARTIFICIAL INTELLIGENCE
        I.2.10 Vision and Scene Understanding
            Subjects: Modeling and recovery of physical attributes
  I.3 COMPUTER GRAPHICS
      I.3.5 Computational Geometry and Object Modeling
          Subjects: Physically based modeling
      I.3.6 Methodology and Techniques
          Subjects: Interaction techniques

General Terms:
Design, Measurement, Performance, Theory