the range of pitch can be larger

[tianbaolin]

1.I find that the pitch attribute of map is limited in 0~60,so I suggest it can range from 0 to 90。so I can wander in the map。
2.the transition effect of pitch can be smooth,now it change suddenly。
3.I also come across this problem #3338, so is there any other methods to solve this problem?

[andrewharvey]

1.I find that the pitch attribute of map is limited in 0~60,so I suggest it can range from 0 to 90。so I can wander in the map。

-> #3731

[mourner]

Closing as duplicate of #3731.