Thank you for your quick answer.
As a matter of fact, I'm using two types of voxels on the same engine, one for building (using cubes) and the other for terrain and vegetation.
To test it, I can make do with using only Windows. How complex would it be to get this result on VF?
I plan on making thousands of players cohabit on the same map by using a proxy behind which the servers will be. However, I'd need the terrain data to be shared across all servers by using for example a SQL database.
Is this possible?
If not, to which extent, in terms of changes per second, can VF be used this way?