Animation aerodynamics

  • Authors:
  • Jakub Wejchert;David Haumann

  • Affiliations:
  • European visualization Centre, IBM Scientific Centre, Winchester, Hampshire S023 9DR, England;IBM Research, T.J. Watson Research Center, Yorktown Heights, New York

  • Venue:
  • Proceedings of the 18th annual conference on Computer graphics and interactive techniques
  • Year:
  • 1991

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Abstract

Methods based on aerodynamics are developed to simulate and control the motion of objects in fluid flows. To simplify the physics for animation, the problem is broken down into two parts: a fluid flow regime and an object boundary regime. With this simplification one can approximate the realistic behaviour of objects moving in liquids or air. It also enables a simple way of designing and controlling animation sequences: from a set of flow primitives, an animator can design the spatial arrangement of flows, create flows around obstacles and direct flow timing. The approach is fast, simple, and is easily fitted into simulators that model objects governed by classical mechanics. The methods are applied to an animation that involves hundreds of flexible leaves being blown by wind currents.