We gave the VideoPlayer component a reference to a VideoClip asset file. Since we added the VideoPlayer component to a camera (Main Camera, in this example), it automatically chose Camera Far Play Render Mode, which is linked to the Main Camera GameObject.
The default setting is Play On Awake, so as soon as the first frame has loaded (since Wait For First Frame is also checked by default), the video will start playing. The video is displayed behind all main camera content (the far plane). Because of this, we can see our 3D Cube in the scene, with the video playing in the background.
