【Unity 计算所有物体包围盒的中心点】转载：https://blog.csdn.net/e295166319/article/details/52934072
[MenuItem ("MyMenu/设置物体的中心点") static void CalculateCenter()
{
// 1.动态技算 Transform parent = transform;
Transform parent =Selection.activeGameObject.transform;
// 2.选中技算Vector3 postion = parent.position;
Quaternion rotation = parent.rotation;
Vector3 scale = parent.localScale;
parent.position = Vector3.zero;
parent.rotation = Quaternion.Euler(Vector3.zero);
parent.localScale = Vector3.one;
Vector3 center = Vector3.zero;
Renderer[] renders = parent.GetComponentsInChildren();
foreach (Renderer child in renders)
{
center += child.bounds.center;
}
center /= parent.GetComponentsInChildren().Length;
Bounds bounds = new Bounds(center, Vector3.zero);
foreach (Renderer child in renders)
{
bounds.Encapsulate(child.bounds);
}parent.position = postion;
parent.rotation = rotation;
parent.localScale = scale;
foreach (Transform t in parent)
{
t.position = t.position - bounds.center;
}
parent.transform.position = bounds.center + parent.position;
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