Mai Ao

A vector to rotate
Rotates 120 degrees about {1, 1, 1}
Rotates -90 degrees about {1, 0, 0}

If you want to rotate the vector by 120 and then -90...

The convention is to write this from right to left, meaning the vector is transformed by A and then by B.
You would expect to have: BAv == (BA)v == B(Av). But in VEX: BAv == (BA)v != B(Av).

VEX actually write this from left to right.
So you actually have: vAB == v(AB) == (vA)B.

Surprisingly, VEX does not care about the order when it is a multiplication between a vector and a matrix.
Effectively: vAB == v(AB) == (vA)B == (Av)B == AvB.

monci
...

@MaiAo Any ideas of using 1024 or higher resolution for heightmap?

Mapbox confirmed that their new API only support up to 512 now. We can look into whether there is a good way to upres it. Overall fix for the bug ETA early next week if not sooner.

swSharkBoy_02's findings are correct. Mapbox changed their API for elevation/height map access. I'm talking to Mapbox devs about this issue. We will update the tool as soon as we find a satisfactory fix.

To further clarify, the error message generated by our Mapbox node is due to missing height map, which in turn was due to height map download links stopped working.