Version: 2021.3
LanguageEnglish
  • C#

Animator.SetIKRotationWeight

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Switch to Manual

Declaration

public void SetIKRotationWeight(AvatarIKGoal goal, float value);

Parameters

goal The AvatarIKGoal that is set.
value The rotational weight.

Description

Sets the rotational weight of an IK goal (0 = rotation before IK, 1 = rotation at the IK goal).

An IK goal is a target position and rotation for a specific body part. Unity can calculate how to move the part toward the target from the starting point (ie, the current position and rotation obtained from the animation).

This function sets a weight value in the range 0..1 to determine how far between the start and goal rotations the IK will aim. The goal itself is set separately using SetIKRotation.

using UnityEngine;

public class Example : MonoBehaviour { Transform objToAimAt; Animator animator;

void Start() { animator = GetComponent<Animator>(); }

void OnAnimatorIK(int layerIndex) { Quaternion handRotation = Quaternion.LookRotation(objToAimAt.position - transform.position); animator.SetIKRotationWeight(AvatarIKGoal.RightHand, 1.0f); animator.SetIKRotation(AvatarIKGoal.RightHand, handRotation); } }

Additional resources: SetIKRotation, SetIKPositionWeight.