67 lines
2.1 KiB
C#
67 lines
2.1 KiB
C#
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using UnityEngine;
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using System.Collections;
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using RootMotion.FinalIK;
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namespace RootMotion.FinalIK {
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/// <summary>
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/// Calculates bending direction and hand rotations for a FBBIK rig for VR hand controllers.
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/// </summary>
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public class FBBIKArmBending : MonoBehaviour {
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public FullBodyBipedIK ik;
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// Bend direction offset for the arms
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public Vector3 bendDirectionOffsetLeft;
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public Vector3 bendDirectionOffsetRight;
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// Add some bend direction offset in character space
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public Vector3 characterSpaceBendOffsetLeft;
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public Vector3 characterSpaceBendOffsetRight;
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private Quaternion leftHandTargetRotation;
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private Quaternion rightHandTargetRotation;
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private bool initiated;
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void LateUpdate() {
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if (ik == null) return;
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if (!initiated) {
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ik.solver.OnPostUpdate += OnPostFBBIK;
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initiated = true;
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}
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// Left arm bend direction
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if (ik.solver.leftHandEffector.target != null) {
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Vector3 armAxisLeft = Vector3.left;
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ik.solver.leftArmChain.bendConstraint.direction = ik.solver.leftHandEffector.target.rotation * armAxisLeft + ik.solver.leftHandEffector.target.rotation * bendDirectionOffsetLeft + ik.transform.rotation * characterSpaceBendOffsetLeft;
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ik.solver.leftArmChain.bendConstraint.weight = 1f;
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}
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// Right arm bend direction
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if (ik.solver.rightHandEffector.target != null) {
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Vector3 armAxisRight = Vector3.right;
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ik.solver.rightArmChain.bendConstraint.direction = ik.solver.rightHandEffector.target.rotation * armAxisRight + ik.solver.rightHandEffector.target.rotation * bendDirectionOffsetRight + ik.transform.rotation * characterSpaceBendOffsetRight;
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ik.solver.rightArmChain.bendConstraint.weight = 1f;
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}
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}
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void OnPostFBBIK() {
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if (ik == null) return;
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// Rotate hand bones
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if (ik.solver.leftHandEffector.target != null) {
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ik.references.leftHand.rotation = ik.solver.leftHandEffector.target.rotation;
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}
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if (ik.solver.rightHandEffector.target != null) {
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ik.references.rightHand.rotation = ik.solver.rightHandEffector.target.rotation;
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}
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}
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void OnDestroy() {
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if (ik != null) ik.solver.OnPostUpdate -= OnPostFBBIK;
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}
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}
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}
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