### 3.11.1 The Background

The `background` feature is used to assign a color to all rays that don't hit any object. This is done in the following way.

      camera {
        location <0, 0, -10>
        look_at <0, 0, 0>
      }
      background { color rgb <0.2, 0.2, 0.3> }
      sphere {
        0, 1
        pigment { color rgb <0.8, 0.5, 0.2> }
      }

The background color will be visible if a sky sphere is used and if some translucency remains after all sky sphere pigment layers are processed.