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> Unreal Engine API Reference > Runtime > AnimGraphRuntime > UKismetAnimationLibrary > UKismetAnimationLibrary::K2_TwoBoneIK

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UKismetAnimationLibrary::K2_TwoBoneIK

Computes the transform for two bones using inverse kinematics.

Windows

MacOS

Linux

References

Module	AnimGraphRuntime
Header	/Engine/Source/Runtime/AnimGraphRuntime/Public/KismetAnimationLibrary.h
Include	#include "KismetAnimationLibrary.h"
Source	/Engine/Source/Runtime/AnimGraphRuntime/Private/KismetAnimationLibrary.cpp

Syntax

static void K2_TwoBoneIK
(
    const FVector & RootPos,
    const FVector & JointPos,
    const FVector & EndPos,
    const FVector & JointTarget,
    const FVector & Effector,
    FVector & OutJointPos,
    FVector & OutEndPos,
    bool bAllowStretching,
    float StartStretchRatio,
    float MaxStretchScale
)

Remarks

Computes the transform for two bones using inverse kinematics.

Parameters

Parameter	Description
RootPos	The input root position of the two bone chain
JointPos	The input center (elbow) position of the two bone chain
EndPos	The input end (wrist) position of the two bone chain
JointTarget	The IK target for the write to reach
Effector	The position of the target effector for the IK Chain.
OutJointPos	The resulting position for the center (elbow)
OutEndPos	The resulting position for the end (wrist)
bAllowStretching	If set to true the bones are allowed to stretch
StartStretchRatio	The ratio at which the bones should start to stretch. The higher the value, the later the stretching wil start.
MaxStretchScale	The maximum multiplier for the stretch to reach.

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