Thanks for the answer Nathaniel, but you didn't answer to my question which was : We already have a database for our map (on this link) and it would be very interesting to add points of interest from this database. Many tools allow to do this, and I would like to know if someone has already connected maps to databases ? Example, tutorial, extension ? Any idea welcome And another one : I am trying - without succes - to grab a very large terrain with WC, I mean 1284x1284 square kilometers. But with an image zoom of 10 and an heightmap of 7. Which should make a 12288x12288 pixels image size. But it doesn't work, I don't know why. A limitation in WC ? In Unity ? Any way to make this working ? Reduce the "scale" somewhere ?