On 27-12-2015 3:42, clipka wrote:
> My suggestion would be to stick to assumed_gamma 1.0, and use POV-Ray
> 3.7.1's new colour_map/pigment_map "blend_mode" and "blend_gamma"
> parameters for more control over the colour gradients. Use "blend_mode
> 1" for entirely linear interpolation, "blend_mode 2 blend_gamma 2.2" for
> blending matching a gamma of 2.2, or "blend_mode 3 blend_gamma 2.2" to
> get gamma 2.2 interpolation of brightness but gamma 1.0 interpolation of
> chromaticity.
>

I tried it but couldn't figure out the usage of these new parameters as 
I got error messages under 3.7.1, in the pigment block as well as in the 
global_settings. Where to put them?
-- 
Thomas

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