For more detail this asset from the Unity Asset Store: Click Here
This is a paid asset, but we’ll share Terrain Slicing & Dynamic Loading Kit for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Terrain Slicing & Dynamic Loading Kit v4.3.3 (Latest version)
Terrain Slicing & Neighboring Kit v1.2
“If possible, please buy the package to support the developer”
-Slice Unity Terrain into smaller pieces that can be loaded dynamically at run-time.
-Load terrains or other objects dynamically based on the player’s position or custom specifications.
-Create 2D or 3D endless or non-endless worlds.
-Keep your worlds centered about a fixed point, to avoid floating point errors with large worlds.
-Create and destroy worlds mid-game.
-Transport the player across or between worlds with ease.
-Modular design that fits into Unity’s Component Model and allows for a range of customization.
-Asset Bundle and Asset Bundle Manager integration.
-Built in slicing compatibility with ats Colormap ULTRA Terrain Shader, and the ability to add support for additional shader slicing yourself (or by me, per request).
-Plus, a treasure trove of other useful tools and awesome functionality! A list of all the tools found in the kit can be found here.
For a full listing of the kits functionality, as well as full documentation, please visit my website @ DeepSpaceLabs.net.