Am 03.09.2010 11:54, schrieb esterichia:

>> #macro FROM_BLACK(COLOR)
>> color_map
>> {
>>     [0 color rgb 0]
>>     [1 color COLOR]
>> }
>> #end
>
> This works but the colors are very dark. I thought I should use some other
> color_map, like
> [0 color rgb 0]
> [0.5 color COLOR]
> [1 color rgb 1]
> but this is not the case. Do I have to change the color_map?

The problem is that they are averaged instead of added; you'll need to 
multiply the colour by a factor of 3:

  [0 color rgb 0]
  [1 color COLOR * 3]

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