Hi,

When using a light_source with fade_power and area_illuminate, the 
latter feature seems to work only partially. Here's a demo scene:

camera{
  location<0,10,-10>
  look_at 0
}

plane{y,0 pigment{rgb 1}}

light_source{
  y*.1,100
  area_light x*10, z*1, 8, 8
  jitter
  area_illumination
  fade_power 2 fade_distance 1
}

As you can see the lumens congregate near the middle of the 
light_source. It is as though the fade_power falloff is still being 
calculated from the very center of the light_source. It is not spread 
out over the whole area_light as one would expect. This makes creating 
something like a realistic fluorescent light very difficult.

Anyway, thanks to all who are updating POV. On the whole it's a great 
improvement over v3.6 :)

Sam

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