"Vincent Le Chevalier" <gal### [at] libertyALLsurfSPAMfr> wrote in 
message news:471e1c7b$1@news.povray.org...

>> Vincent Le Chevalier  wrote in message <471d1c2f$1@news.povray.org>:
>>> Or diminishing that of the sky_sphere.
>>
>> I do not know how to do that. Is it possible?
>
> It is not possible with a sky_sphere because you cannot specify a finish. 
> However, you can do that with a really big hollow sphere centered on the 
> origin.

or you could of course just multiply the color-values of your sky_sphere...

cu!
-- 
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x)            // ZK http://www.povplace.com

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