POV-Ray : Newsgroups : povray.general : Lighting problem at extreme distances : Re: Lighting problem at extreme distances Server Time: 4 Jul 2008 20:08:31 GMT
  Re: Lighting problem at extreme distances  
From: Warp
Date: 24 Mar 2008 17:44:26
Jörg 'Yadgar' Bleimann <yazdegird [at] gmxde> wrote:
> Works fine... as long as I adjust the scale value according to Sedna's 
> distance to the Sun rather than to the camera-Sedna distance. If I try 
> the latter (i. e. insert 10000 instead of 975.56*AU, which is about 14 
> billions), the illuminated half of the Sedna dummy sphere appears 
> terribly grainy!

  This is most probably just a limitation with 64-bit floating point
values. (Less probably a bug.)
  If that is indeed the reason, then there's little one can do about it.

-- 
                                                          - Warp


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