相机绕着某个目标移动

OrbitCamera.cs

    private void OrbitCamera()
    {
        //orbit camera - 让相机在一个固定水平高度上绕着物体旋转.用于第三人称视角时候人物跟踪
        //lookAngle为定义的视角new Vector(45,30,0) 表示离地角度是45°,水平旋转角度是30°
        //因为是正交相机,所以相机距离物体远近无异议,所以才用常量20f作为距离
        var lookQuaternion = Quaternion.Euler(lookAngle);
        var lookDirection = lookQuaternion * Vector3.forward;
        var lookPosition = transform.position - lookDirection * 20f;
        Camera.SetPositionAndRotation(lookPosition, lookQuaternion);
    }