利用者・トーク:Mikahl/Chain Rig

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2009年6月27日 (土) 01:04時点におけるwiki>Mindronesによる版 (eliminating my own comment)
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Chain Rig

First,  Add....

  • 1 path ( chain_path )
  • 1 Line segment mesh ( chain_guide )
  • 1 armature ( chain_deform ) * Note that we'll duplicate this later on, and make it for animating.


Subdividing

  • Subdividechain_guide  w/ same amount of points as chain_path.  Ensure both chain_path, chain_guide are the same dimensions, and length.   
  • Add hooks to every point of chain_path, name them front to back, starting w/ path_hook.001, pathhook.002, etc.
  • Create VGs for each vertex in chain_guide, name them corresponding to the hooks.  E.g. path_hook.001, path_hook.002.
  • Create bones for every hook in chain_deform.  Use 3d cursor snap to make it precise.  Name them accordingly, starting with path_aim.001, path_aim.002, etc. Make sure they have an entirely flat hiearchy, i.e. nothing is parented to anything.


Making Connections

  • Add thecurve deform modifier to chain_guide, using chain_path as its deforming curve.
  • TrackTo constrain each bone of chain_deform to the vertex in chain_guide that's in the same spot as its tip. 
  • CopyLoc constrain each bone ofchain_deform to its corresponding hook.  The hook that's in the same spot as the root of each bone.


Adding animation controls

  • Duplicate chain_deform and call it chain_animate.  Maybe give them a different display, so the two armatures are easy to distinguish. 
  • ChildOf constrain each bone of chain_deform to its corresponding chain_animate bone.
  • Add a 'Feed' bone to chain_animate.  CopyLoc constrain chain_guide to the Feed Bone, and lock off the axis that aren't aligned with the curve.  Lock off the same axis of the Feed Bone.

Finishing Touches

  • Parent basically all object to chain_animate. 
  • Make the chain_guide and chain_path invisible, unselectable.