A plane is a flat 3D object that can be positioned at any depth within the scene.
You could use a plane to place a 2D logo or texture into 3D space.
To insert a plane:
When you select a plane in the Scene tab, you'll be able to see and make changes to its properties in the Inspector panel.
Uncheck this box to stop the plane and any children from being rendered in the scene.
Edit the position, scale and rotation of the plane.
Apply a material to the plane.
Insert simple combinations of patches involving the plane into the Patch Editor, like tap gestures.
Choose the camera or cameras on a mobile device in which you want to render the plane.