POV-Ray : Newsgroups : povray.binaries.images : caustics with radiosity? : Re: caustics with radiosity? Server Time
14 Aug 2024 07:13:22 EDT (-0400)
  Re: caustics with radiosity?  
From: Anders K 
Date: 29 Dec 2002 22:50:31
Message: <3e0fc287$1@news.povray.org>
I wrote:
> > Actually, that's easy, if I understand the question correctly: let (x,
y)
> be
> > a random point in the unit circle (x^2 + y^2 <= 1), and let z = sqrt(1 -
> > x^2 - y^2).

Slime wrote:
> That doesn't have a uniform distribution.

Right. It has cos theta distribution, like Christoph asked for.

Anders

--
light_source{6#local D=#macro B(E)#macro A(D)#declare E=(E-#declare
C=mod(E D);C)/D;C#end#while(E)#if(A(8)=7)#declare D=D+2.8;#else#if(
C>2)}torus{1..2clipped_by{box{-2y}}rotate<1 0C>*90translate<D+1A(2)
*2+1#else}cylinder{0(C-v=1).2translate<D+C*A(2)A(4)#end-2 13>finish
{specular 1}pigment{rgb x}#end#end#end-8;1B(445000298)B(519053970)B
(483402386)B(1445571258)B(77778740)B(541684549)B(42677491)B(70)}


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