Hadmut Danisch napsal(a):
> Mike Williams wrote:
> 
>>  texture {
>>   pigment {radial frequency 30
>>     colour_map{[0.1 rgb 1][0.1 rgbt <0,0,0,1>]}
>>   }
> 
> 
> Just a little detail problem:
> 
> while this does what I am looking for in principle, there's one
> problem: The line is not of constant width. The closer it gets to the
> poles, the smaller it gets, like a slice of cake. Becomes highly visible
> when the frequence gets lower, e.g. frequency 4
> 
> regards
> Hadmut
in that case you need to invent a pigment to account for this. It might 
not be that simple.

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