Question

我正在尝试将相机移动到具有指定偏移量的单击的Gameobjects位置。因此，脚本应该通过单击的游戏对象位置，实际摄像机位置和偏移量来计算结果位置。

我已经用以下代码尝试过：

Vector3 distanceVector = transform.position - target.transform.position;
Vector3 distanceVectorNormalized = distanceVector.normalized;
targetPosition = (distanceVectorNormalized * preferredDistance);

但是我得到了一些非常奇怪的价值观。这是我为此编写的代码：

public float moveSpeed = 0.1f;

private bool moving = false;
private GameObject target;

// The distance between the camera and the targets position
private float preferredDistance = 3;

// The position the camera will move to
private Vector3 targetPosition;

// Start is called before the first frame update
void Start()
{
}

// Update is called once per frame
void Update()
{
    if (Input.GetMouseButtonDown(0))
    {
        var ray = Camera.main.ScreenPointToRay(Input.mousePosition);

        if (Physics.Raycast(ray, out var hit, 100) == false) return;

        Debug.Log(hit.transform.gameObject.name);
        target = hit.transform.gameObject;

        ... Here should be the calculations

        moving = true;
    }

    if (moving)
    {
        transform.position = Vector3.Lerp(transform.position, targetPosition, moveSpeed);
        transform.LookAt(target.transform.position);

        var offsetX = Math.Abs(transform.position.x - targetPosition.x);
        var offsetZ = Math.Abs(transform.position.z - targetPosition.z);

        if (offsetX < .01
            && offsetZ < .01) moving = false;
    }
}

Answer 1

您的归一化distanceVector充当照相机朝向对象的方向。您应该对此方向进行归一化，以便您将其乘以preferredDistance。然后，它成为摄影机与目标的偏移。

出现问题的部分是，您将此 normalized 偏移设置为新的相机位置，而应将其添加到其中：

Vector3 distanceVector = transform.position - target.transform.position;
Vector3 distanceVectorNormalized = distanceVector.normalized;
targetPosition = target.transform.position + (distanceVectorNormalized * preferredDistance);

请注意最后一行的区别。

偏移目标

1 个答案: