Roblox Smooth Terrain Build Leak

WARNING: This is a prototype build. It is not a representation of the final smooth terrain product. Things will probably glitch, but its neat to look at nonetheless.
See the disclaimer by the developer here:
https://gist.github.com/zeux/30a84c34225c47c2aa3e

To install the smooth terrain build, go to this url:
http://setup.gametest5.robloxlabs.com/RobloxStudioLauncherBeta.exe

When you generate terrain, you'll notice right away that the terrain is exactly the same.
This is because the new terrain and the old terrain are completely different systems.
You'll have to convert it to the smooth terrain format.
Keep in mind that once its converted to smooth, it cannot be undone.
To convert the normal terrain into smooth terrain, select the plugin in the terrain toolbar with the circled X, and then press Convert.

The stamper tool plugin and smooth terrain plugin are the only plugins that will work with terrain once it is converted to smooth.
The following APIs are available in this build. The brush APIs are temporary and will not be available in the final version.

game.Workspace.Terrain:BrushAdd(Vector3 position, float radius, CellMaterial material)
game.Workspace.Terrain:BrushExpand(Vector3 position, float radius, float amount)
game.Workspace.Terrain:BrushPaint(Vector3 position, float radius, CellMaterial material)
game.Workspace.Terrain:BrushShrink(Vector3 position, float radius, float amount)
game.Workspace.Terrain:BrushSubtract(Vector3 position, float radius)
game.Workspace.Terrain:FillBall(Vector3 center, float radius, Material material)
game.Workspace.Terrain:FillBlock(CoordinateFrame cf, Vector3 size, Material material)
game.Workspace.Terrain:FillRegion(Region3 region, float resolution, Material material)
game.Workspace.Terrain:ReadVoxels(Region3 region, float resolution)
game.Workspace.Terrain:WriteVoxels(Region3 region, float resolution,Array materials, Array occupancy)