Adding offset to quaternion slerp

Unity Engine
,
1

So for a simple little weapon viewmodel, i wrote this code to add offset to the rotation while still applying the slerp with the offset. I can do this with transform (not slerp however) fine but not rotation.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class followcam : MonoBehaviour
{
    public Transform targetcamera;
    public Vector3 offset;
    public Quaternion rotationOffset;
    public float rotationSpeed = 30f;

    void Update()
    {
        transform.position = targetcamera.position + offset;
        transform.rotation = Quaternion.Slerp(transform.rotation, targetcamera.rotation, rotationSpeed * Time.deltaTime);
        // Trying to add RotationOffset to the new result

    }
}

Viewing the embedded video, you can see that the Slerp is working properly, just that the rotation is messed up, i want the end of the slerp to reset to the position it was in before i started the game, so i added a public Quaternion rotationOffset and now i’m just trying to figure out how to apply it to the model.

heftybiodegradableafricanelephant

2

You can combine rotations with the * operator. So perhaps something like:

targetcamera.rotation * rotationOffset
3

Quaternions have two * operator overloads (these are non-commutative)

Quaternion operator *(Quaternion lhs, Quaternion rhs)
Vector3 operator *(Quaternion lhs, Vector3 rhs)

article

4

Though I wouldn’t advise doing that non-stop in Update.
Quaternion multiplications aren’t exactly the cheapest thing in the world, you want to integrate that once.

Why can’t you just rotate the model in prefab?