
Post by
Hardtack | 2020-06-18 | 19:30:21
We assume that the wind data reported by the Dashboard is what the VR server actually used to move your boat. The data is included in the boat status messages, along with the boat position, speed, TWA, sail used, heading mode etc.
The game UI obviously uses its own wind interpolation. This makes sense, because providing interpolated wind data to all the clients would put quite some load on the server(s). Unfortunately it seems that VR were unable to implement the client-side wind interpolation in a consistent manner with the server. The inconsistencies can be observed during the forecast updates starting at 3:30, 9:30, 15:30 and 21:30 UTC. Possibly also when the wind direction changes rapidly over time.
The client not only displays its own wind interpolation, it also uses it to move your boat in 1min intervals. This results in your boat moving "sideways" (in a jagged line) when the server updates arrive.