Terrain - World Building

I supposed that that a large world, such as the one in an MMORPG, is composed of multiple terrain maps. In Unity, a 2000 x 2000 terrain is by default the single map size. As a result, I supposed multiple maps of this size will be made to build the world.

My problem is, how these mass of maps are supposed to be managed in Unity? Are there any tools out there for joining the adjacent maps smoothly and seemlessly?

Thanks.

I had a problem where I wanted to fix seams between terrain objects and couldn’t find a solution here.

Seemed like no matter how many times the question was asked, responses would always be about SetNeighbors, etc.

The only other response I’ve seen suggests that you pay $5 for something that will automatically blend terrain edges together, etc. - but to me, it would mean losing some control of heightmaps at the seams.

So… 2 days ago I finally gave up searching and just made TerrainEdge (.UnityPackage) (4.3kb)

This allows me to load the heightmaps from a 2x2 grid of adjacent terrain objects into a separate larger terrain - it acts as a temporary canvas allowing me to fix the seams between the 4 heightmaps with Unity’s built-in terrain sculpting tools and then when finished, I can export the heightmaps back to their original, smaller terrains.

Be warned though, there is no “undo” function in this release, so experiment with it first.

Seems to work well enough for me though. - Will do a proper release with extra features when I’ve got a bit more time to spare.