调整圆柱体变换以匹配2个给定点

在前面的问题中,您说过圆柱体有一个父对象,因此如前所述,您可以使用 Transform.LookAt

旋转变换,使 正向矢量 指向/target/的当前位置。

或者 Quaternion.LookRotation

创建具有指定向前和向上方向的旋转。

在父对象上,只需确保圆柱体旋转的方式使其局部Y轴与父对象的Z轴匹配即可=>局部旋转是 -90°, 0, 0

或者您可以简单地将此旋转添加到的结果中 四元数。LookRotation 比如。

private Quaternion offset = Quaternion.Euler(-90, 0, 0);

public void ApplyPoints(Transform cylinder, Vector3 p1, Vector3 p2)
{
    var delta = p2 - p1;

    // First apply the world space rotation so the forward vector points p1 to p2
    cylinder.rotation = Quaternion.LookRotation(delta);
    // Then add the local offset around the local X axis
    cylinder.localRotation *= offset;
    // Or also
    //cylinder.Rotate(-90, 0, 0);

    // Set the position to the center between p1 and p2
    cylinder.position = (p1 + p2) / 2f;

    // Set the Y scale to the half of the distance between p1 and p2    
    var scale = cylinder.localScale;
    scale.y = delta.magnitude / 2f;
    cylinder.localScale = scale;
}

除此之外,您也可以简单地将所需的方向指定给 Transform.up

public void ApplyPoints(Transform cylinder, Vector3 p1, Vector3 p2)
{
    var delta = p2 - p1;

    // YES! It is possible to simply set the up, right or forward direction 
    // so the object is rotated accordingly
    cylinder.up = delta;

    // Set the position to the center between p1 and p2
    cylinder.position = (p1 + p2) / 2f;

    // Set the Y scale to the half of the distance between p1 and p2    
    var scale = cylinder.localScale;
    scale.y = delta.magnitude / 2f;
    cylinder.localScale = scale;
}