Err.. hmmm... sorry, but IMHO, it is possible with any version of POV-Ray 
having gradient pattern. I've done this in the past with great success... 

  You only have to texture your whole scene with a gradient from white to 
black, along the direction of the camera view (this may require a bit of 
good and old trial&error scaling and translating the gradient). Use a 
finish with ambient 1 and diffuse 0, and no lights. Simple, isn't?

-- 
Jaime Vives Piqueres

La Persistencia de la Ignorancia
http://www.ignorancia.org

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