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US07864181B1 Shape friction: shape preservation of simulated objects in computer animation 有权
形状摩擦：计算机动画中模拟对象的形状保存

  • Patent Title: Shape friction: shape preservation of simulated objects in computer animation
  • Patent Title (中): 形状摩擦：计算机动画中模拟对象的形状保存
  • Application No.: US11758984
    Application Date: 2007-06-06
  • Publication No.: US07864181B1
    Publication Date: 2011-01-04
  • Inventor: David Baraff
  • Applicant: David Baraff
  • Applicant Address: US CA Emeryville
  • Assignee: Pixar
  • Current Assignee: Pixar
  • Current Assignee Address: US CA Emeryville
  • Agency: Townsend and Townsend and Crew LLP
  • Main IPC: G06T15/00
  • IPC: G06T15/00
Shape friction: shape preservation of simulated objects in computer animation
Abstract:
A method for simulating objects includes receiving a target shape associated with a simulated object. A difference is determined between the target shape and a measured shape associated with the simulated object. One or more forces are generated to act on the simulated object to reduce the difference between the target shape and the measured shape. The target shape may be updated when the difference between the target shape and the measured shape exceeds a predetermined tolerance. Updating the target shape may include reducing the target shape to move the target shape closer to the measured shape.
Abstract(Chinese):

用于模拟对象的方法包括接收与模拟对象相关联的目标形状。 在目标形状和与模拟对象相关联的测量形状之间确定差异。 产生一个或多个力作用于模拟对象以减小目标形状和测量形状之间的差异。 当目标形状和测量形状之间的差超过预定公差时，可以更新目标形状。 更新目标形状可以包括减小目标形状以使目标形状更接近测量的形状。

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