KenH Posted May 26, 2005 Share Posted May 26, 2005 Is it possible to lock the axis movement of a bone within an IK chain? I've locked one but it still rotates in the locked axis when the last in the chain is moved.... Quote Link to comment Share on other sites More sharing options...
Gerard Posted May 27, 2005 Share Posted May 27, 2005 I think I found one way of achieving this: If you are using a chain of bones in a typical parent/child hierarchical setup, then I discovered that in order to lock a bone so that it would not be affected when I moved the bottom of the chain, I needed to go into the properties of the bone beneath it (i.e. its child) and set "Attached to parent" to OFF. So for example if you have a 5 bone chain (bone 5 being the last in the chain) and wish to lock bone 2, you need to switch the bone 3 "Attached to parent" property to OFF. Gerard Quote Link to comment Share on other sites More sharing options...
Hash Fellow robcat2075 Posted June 5, 2005 Hash Fellow Share Posted June 5, 2005 Would a rotation limit constraint of zero do it? I think you can animate those settings to vary the lockedness. maybe? Quote Link to comment Share on other sites More sharing options...
Bendytoons Posted June 5, 2005 Share Posted June 5, 2005 Would a rotation limit constraint of zero do it? Give that man a cigar. Just did a quick check. An Euler Limits constraint with any axis limited to Min O/Max 0, yeilds a non-rotating axison that link in an IK chain. Quote Link to comment Share on other sites More sharing options...
Gerard Posted June 6, 2005 Share Posted June 6, 2005 An Euler Limits constraint with any axis limited to Min O/Max 0, yeilds a non-rotating axison that link in an IK chain. Of course .... simple really! ... better than my earlier daft suggestion! And if you needed to rotate the locked bone at a later stage, you would locate the constraint and set the enforcement to 0%, so that you could move the bone in the desired axis of rotation. Gerard Quote Link to comment Share on other sites More sharing options...
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