利用者・トーク:Mikahl/Chain Rig

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.