Can Someone help me understand these tiles? (references provided)

[golbez22]

The rotation is to solve a problem that has arisen. the worlds and the heights of certain objects are generated....so how do you deal with large objects? if you have to scale a mountain you should be able to go up all sides, and also not be covered by a mountain if you are behind it...if your far enough away then the mountain can be filtered out but when super close idk how else to fix the issue

---

I think the top could be something like this maybe