virtual bool Initialize ( const [FBoneChain](API\Plugins\IKRig\Rig\FBoneChain) & SourceBoneChain, const [FBoneChain](API\Plugins\IKRig\Rig\FBoneChain) & TargetBoneChain, const [FRetargetSkeleton](API\Plugins\IKRig\Retargeter\FRetargetSkeleton) & SourceSkeleton, const [FTargetSkeleton](API\Plugins\IKRig\Retargeter\FTargetSkeleton) & TargetSkeleton, [FIKRigLogger](API\Plugins\IKRig\FIKRigLogger) & Log )