Resolved.
I will share the solution.
- Create a multMatrix node
- Create a decomposeMatrix node
- Connect the source joint's attributes
- Connect joint.worldMatrix[0] >> multMatrix.matrixIn[0]
- Connect the attributes of the parent node of the joint of source
- parent joint.worldInverseMatrix[0] >> multMatrix.matrixIn[1]
- Connect multMatrix node to decomposeMatrix node
- multiMatrix.matrixSum >> decomposeMatrix.inputMatrix
- Connect a decomposeMatrix node to a target joint
- decomposeMatrix.outputScale >> joint.scale
- parent source to target Constraint
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