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Wasn't it Dave Dunn who wrote:
>Mike Williams <nos### [at] econym demon co uk> wrote:
>> When I want to grab loads of colours from something like a cloudscape I
>> convert the image to a GIF, load it into IrfanView and export the
>> palette in PAL format.
>>
>> In PAL format you get an ascii file with three lines of junk, then a
>> list of the RGB values of each palette entry. If you tweak the file by
>> inserting commas everywhere, you can #read the data with POV, divide by
>> 255 and populate a colour_map.
>>
>> --
>> Mike Williams
>> Gentleman of Leisure
>
>That is absolutely brilliant. One thing I have always hated is sitting there
>building color_maps by hand. You have truly earned your title, "Man of
>Leisure." Thanks for the tip.
I must confess that the technique is not entirely original with me. It's
commonly used to produce colour maps for fractals with programs like
Fractint or Ultrafractal. In fact a Fractint .MAP file looks very much
like an IrfanView .PAL file with the first three lines deleted. I just
spotted that you can do the same thing with POV, with a bit more
processing.
--
Mike Williams
Gentleman of Leisure
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