通過旋轉另一個物件（hand-VR）來旋轉物件（模型）-有解無憂

我正在使物體隨著手的旋轉角度旋轉。它運行良好，我能夠旋轉 3D 模型物件。不幸的是，現在我只希望物件在其 z 軸上旋轉。我正在嘗試使用Quaternion.Euler (0, 0, rot.eulerAngles.z);但不起作用并且模型在所有 3 個軸上旋轉。我如何解決它？

    public GameObject targetHand;

    [Header ("3D Model")]
    public GameObject powerSwitch;

    [Header ("Hand to 3D Model")]
    public float activationDistance;
    private Quaternion currentRot;
    private Vector3 startPos;
    private bool offsetSet;

    void Update () {

            if ((IsCloseEnough ())) {
                Rotate ();
            } else {
                offsetSet = false;
            }
        
    }
    void Rotate () {

        SetOffsets ();

        Vector3 closestPoint = Vector3.Normalize (targetHand.transform.position - powerSwitch.transform.position);
        var rot = Quaternion.FromToRotation (startPos, closestPoint);
        rot = Quaternion.Euler (0, 0, rot.eulerAngles.z); //Not working when I do this, why?
        powerSwitch.transform.rotation = rot * currentRot;

    }

    void SetOffsets () {
        if (offsetSet)
            return;

        startPos = Vector3.Normalize (targetHand.transform.position - powerSwitch.transform.position);
        currentRot = powerSwitch.transform.rotation;

        offsetSet = true;
    }

    bool IsCloseEnough () {
        if (Mathf.Abs (Vector3.Distance (targetHand.transform.position, powerSwitch.transform.position)) < activationDistance)
            return true;

        return false;
    }

uj5u.com熱心網友回復：

您想限制圍繞該軸的旋轉。

我制作了一個擴展方法來像這樣夾緊每個軸，使該功能在專案中的任何地方都可用。

public static class MyExtensions // Name it what you like I just use this
{
    public static Quaternion ClampRotationAroundZAxis(this Quaternion q)
    {
        if (!Mathf.Approximately(q.w, 0f)) // Cannot divide by 0f
        {
            // Check values are not 0f before trying to divide them
            q.x = !Mathf.Approximately(q.x, 0f) ? q.x /= q.w : q.x;
            q.y = !Mathf.Approximately(q.y, 0f) ? q.y /= q.w : q.y;
            q.z = !Mathf.Approximately(q.z, 0f) ? q.z /= q.w : q.z;
            q.w = 1f;
        }
        
        // Clamp other rotations
        q.x = 0f;
        q.y = 0f;

        return q; // Return self
    }
}

// Usage
rotation.ClampRotationAroundZAxis();

編輯：向 OP 顯示使用情況

如果我讓它們以正確的方式進行匹配，您可以像這樣匹配它，否則在設定時交換順序 dir

Vector3 dir = (powerSwitch.transform.position - targetHand.transform.position).normalized;
Quaternion rot = Quaternion.LookRotation(dir, Vector3.up).ClampRotationAroundZAxis();
powerSwitch.transform.rotation = rot;

uj5u.com熱心網友回復：

簡直不敢相信這是多么簡單。

要旋轉事物只是.z軸，您應該保留其他軸。例子：

Transform target;

transform.eulerAngles = new Vector3(transform.eulerAngles.x, transform.eulerAngles.y, target.eularAngles.z);

僅使用目標 z。

轉載請註明出處，本文鏈接：https://www.uj5u.com/qiye/365051.html

標籤：C＃统一3d

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