IsSmooth
Deprecated
This item is a deprecated function of a legacy Terrain engine that has been removed. Do not use it for new work.
ReadOnly
This property can only be read from. Attempting to write to it will cause an error.
NotReplicated
This item is not replicated across Roblox’s server/client boundary.
The state of this property shows whether or not this /TerrainRegion contains smooth terrain.