POV-Ray : Newsgroups : povray.text.tutorials : Sun thread? : Re: Sun thread? Server Time
23 Apr 2024 15:37:12 EDT (-0400)
  Re: Sun thread?  
From: Warp
Date: 12 Jul 2001 05:16:34
Message: <3b4d6af1@news.povray.org>
Eli Ewok Brody <ewo### [at] yahoocom> wrote:
:     It's obvious an area light - the sun disc isn't a point. The sun is so
: far away, that the light it generates closely aproximates parallel rays,
: though.

  Light rays coming from a light source with a visible area are never
parallel, no matter how far it is.
  It's only when the light source is practically a point light when the
light rays start to be practically parallel. However, the Sun isn't.

-- 
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -


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