The first step we'll take in setting up our first VR scene is to delete Main Camera from the hierarchy. This is a standard object that Unity adds to every scene in order to render it, but since the Rift is responsible for rendering VR scenes, we don't need a standard camera anymore.
After you delete the default camera, it's time to add a place for the player to stand. We'll get into creating natural terrains later in this book, but for now we'll just make a simple flat floor.
Click on the Create button in the upper-left corner of the Hierarchy window and select Plane from the 3D Object menu, as shown in the following screenshot:
Once your plane has been created, click on it once in the hierarchy to display its properties ...