In article <3662ef6d.0@news.povray.org>, and### [at] acockerfreeservecouk 
says...
>
>Hi,
>    Please help me with this annoying problem.
>

... snip....

>    spotted color_map {
>                [0 Red][.6 Red][.61 Clear][.9 Clear][.91 Red][1 Red]}
>                }

It's seems that your problem has been solved allready, but here's another 
(of topic) little hint : To get a abrubt change (of color) in a colormap, or 
any other mapping (texture_map, slope_map, etc) you may replace the above 
piece of code with :

   spotted
   color_map { 
	[0.0 Red]
	[0.6 Red]
	[0.6 Clear]
	[0.9 Clear]
	[0.9 Red]
	[1.0 Red]
   }


assuming you don't want those small bands of smooth transitions.


Hope this helps somewhere,

	Rick.

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