Well, Spider I spent the afternoon working on a BW render in pov as well. Her is
what I came up with..

Notice the coloured background, it's not that beautiful, and if you wish to see
something useful, use a plain white, or a hexgon with rgb 0, rgb 1, rgb 0.5,
this will give a good colour contrast marking. But since I didn't want any
doubts I did it like this.

Well, technique :
A macro to convert a vector to a colour, either a full rgb or a BW value. a
macro to create one scene copy. Declare start values for the colours(vectors) 
then create a colours from this with the vector->colur macro, and move into
place.
redo with both BW and RGB colours. a checker/hexagon background, to show it is
all in colour.

To prevent the light from interfering, there is a hollow plane in the middle, a
diffuse 0, rgb 0 and so on. it's not very visible.

Source in .text.scenefiles

if you convert this image to grayscale, you will find a slight difference
between the two sides, I think this is from gamma correction, but I'm not
certain.


Ken, sorry If I did your work.
(Yes, there are a coloured light, there are faded textures and all in here.. )
-- 
//Spider 
( spi### [at] bahnhofse ) [ http://www.bahnhof.se/~spider/ ]
#declare life = rand(seed(42))*sqrt(-1);

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