// A plane with ripples

// first, the camera position
camera {
  location <-4,5,-6>
  look_at <0,0,0>
}

// now, some light
light_source {
  <3,2,-6>
  color rgb <2,2,2>
}

plane {
  y, -2
  texture {
    pigment { color rgb <.1, .9, .9> }
    normal {
      ripples 0.5
    }
  }
}