CenterPivotContextMenu.cs

using UnityEngine;
using UnityEditor;

public static class CenterPivotContextMenu
{
    [MenuItem("CONTEXT/Transform/Center Pivot (Create Parent)")]
    private static void CenterPivot(MenuCommand command)
    {
        Transform selectedTransform = (Transform)command.context;
        GameObject selected = selectedTransform.gameObject;

        MeshFilter meshFilter = selected.GetComponent<MeshFilter>();
        if (meshFilter == null || meshFilter.sharedMesh == null)
        {
            Debug.LogWarning("Seçilen objede geçerli bir MeshFilter bulunamadı.");
            return;
        }

        Mesh mesh = meshFilter.sharedMesh;
        Bounds bounds = mesh.bounds;
        Vector3 centerLocal = bounds.center;
        Vector3 centerWorld = selected.transform.TransformPoint(centerLocal);
        var _parent = selected.transform.parent;

        GameObject parent = new GameObject($"{selected.name}_PivotCentered");
        Undo.RegisterCreatedObjectUndo(parent, "Create Centered Parent");

        parent.transform.position = centerWorld;
        parent.transform.rotation = selected.transform.rotation;
        parent.transform.localScale = selected.transform.localScale;

        Undo.SetTransformParent(selected.transform, parent.transform, "Reparent Object");
        parent.transform.SetParent(_parent);

        Debug.Log($"'{selected.name}' objesi için pivot ortalanmış yeni parent oluşturuldu.");
    }
}