For more detail this asset from the Unity Asset Store: Click Here
This is a paid asset, but now you can download Terrain Spam 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 Spam v1.0
“If possible, please buy the package to support the developer”
Terrain Spam allows level designers and developers create high volume and complex scenes with large amounts of objects in a much shorter amount of time.
– Optionally preserve prefab connections
– Select gameobjects to choose randomly from
– Automatically apply random or defined position, rotation, and scale
– Optionally snap to grid or intervals
– Auto assign a parent to created objects
– Layer masks for unwanted terrains
In a few steps you can begin placing many objects with a tap of the Spacebar.
You can also apply random settings and offsets to already created objects!