Our camera looks a lot like our light source.
//camera is at eye-level
camera {
location <0, 2, -10>
look_at <0, 0, 0>
}
This camera is two meters up and ten meters back. The camera is pointed straight towards the center of the universe: in the “look_at” location, each location number is zero.
While you can have many light sources in your scene, you can have only one camera.
