// An extended area light (soft shadows)
// WARNING: This can significantly slow down rendering times!
light_source
{
  0*x // light's position (translated below)
  color red 1.0  green 1.0  blue 1.0  // light's color
  // <widthVector> <heightVector> nLightsWide mLightsHigh
  area_light <8, 0, 0> <0, 8, 0> 4, 4
  adaptive 0    // or 1 or 2 
  jitter        // adds random softening of light
  translate <40, 80, -40>   // <x y z> position of light
}