相机：观众的眼睛。这里用的是 PerspectiveCamera（透视相机）。
Google Messages already has a location-sharing feature, but it's more for dropping a static pin on a map. That's fine if you're staying in the same spot, but not much use if you're on the go. The difference here is that the new option updates your location as you move, making it much easier to connect with someone.
，这一点在服务器推荐中也有详细论述
New-Advantage2813пользователь Reddit
Premium Digital