"Bill Pragnell" <bil### [at] hotmailcom> wrote in message
news:web.45ed80479077db1f731f01d10@news.povray.org...
> Following all this radiosity talk, I have made a minor discovery. I think
> Alain hinted that this was possible in a radiosity-related post last month,
> so it's probably not totally new, but it seems that when using radiosity
> lighting with transparency you get caustics naturally without any need for
> photon-mapping!

tried it long ago (see
http://www.povplace.com/gallery/Old%20-%20Test-scenes/thumbs/41.jpg ) but I also
discovered then that 1600 samples was as high as you could go, which clearly is
too low for accurate caustics.

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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