Lance Birch nous apporta ses lumieres en ce 2005-04-13 23:00:
> "Alain" <ele### [at] netscapenet> wrote in message
> news:425db5ab$1@news.povray.org...
> 
>>Lance Birch nous apporta ses lumieres en ce 2005-04-12 11:15:
>>
>>>I think the thing that's lacking from these Blue Marble attempts is that the
>>>glass has no depth-based colour change.  Most coloured glass gets darker as
> 
> the
> 
>>>depth increases.  Finding a way to do that which still renders fast could be
>>>tricky though... hmm.
>>>
>>>Lance.
>>>
>>>
>>
>>fade_color [some colour]
>>fade_distance [some value]
>>fade_power 1 //linear relation, real world value. Suqare (2) is for
> 
> light_source fading.
> 
> I don't think this would produce results close enough to the NASA example
> though.  I'm thinking media might be a better choice in this instance, to give
> it more of a "dense" look.
> 
> Lance.
> 
> thezone - thezone.firewave.com.au
> 
> 
If you need the tinting to be more intense, you reduce the fade_distance. You may also
increase the 
fade_power.

Alain

Post a reply to this message