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FAnimNode_Fabrik

Controller which implements the FABRIK IK approximation algorithm - see [http://www.academia.edu/9165835/FABRIK_A_fast_iterative_solver_for_the_Inverse_Kinematics_problem](http://www.academia.edu/9165835/FABRIK_A_fast_iterative_solver_for_the_Inverse_Kinematics_problem) for details

Windows

MacOS

Linux

Inheritance Hierarchy

FAnimNode_Base

FAnimNode_SkeletalControlBase

FAnimNode_Fabrik

References

Module	AnimGraphRuntime
Header	/Engine/Source/Runtime/AnimGraphRuntime/Public/BoneControllers/AnimNode_Fabrik.h
Include	#include "BoneControllers/AnimNode_Fabrik.h"

Syntax

struct FAnimNode_Fabrik : public FAnimNode_SkeletalControlBase

Remarks

Variables

	Name	Description
bool	bEnableDebugDraw	Toggle drawing of axes to debug joint rotation
TEnumAsByte< en...	EffectorRotationSource
FBoneSocketTarg...	EffectorTarget	If EffectorTransformSpace is a bone, this is the bone to use.
FTransform	EffectorTransform	Coordinates for target location of tip bone - if EffectorLocationSpace is bone, this is the offset from Target Bone to use as target location
TEnumAsByte< en...	EffectorTransformSpace	Reference frame of Effector Transform.
int32	MaxIterations	Maximum number of iterations allowed, to control performance.
float	Precision	Tolerance for final tip location delta from EffectorLocation
FBoneReference	RootBone	Name of the root bone
FBoneReference	TipBone	Name of tip bone

Constructors

	Name	Description
	FAnimNode_Fabrik()

Functions

		Name	Description
	void	ConditionalDebugDraw ( FPrimitiveDrawInterface* PDI, USkeletalMeshComponent* Previe... )

Overridden from FAnimNode_SkeletalControlBase

		Name	Description
	void	EvaluateSkeletalControl_AnyThread ( FComponentSpacePoseContext& Output, TArray< FBoneTransform >& OutBoneT... )	Evaluate the new component-space transforms for the affected bones.
	bool	IsValidToEvaluate ( const USkeleton* Skeleton, const FBoneContainer& RequiredBone... )	Return true if it is valid to Evaluate

Overridden from FAnimNode_Base

		Name	Description
	void	GatherDebugData ( FNodeDebugData& DebugData )	Called to gather on-screen debug data. This is called on the game thread.
	void	Initialize_AnyThread ( const FAnimationInitializeContext&... )	Called when the node first runs.

Deprecated Variables

		Name	Description
	FBoneReference	EffectorTransformBone_DEPRECATED	If EffectorTransformSpace is a bone, this is the bone to use.

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