Zeger Knaepen nous apporta ses lumieres en ce 2005-06-05 19:50:
> today, while working on my lensflare-system, I suddenly had an idea of how to
> improve my fastclouds-includefile (which can be found on p.b.s-f): just add some
> turbulence and fluffyness, and change the shape of the "cloud container"
> slightly.  This is the result.  Not photo-realistic, but I think it might be
> usefull in some cases.
> 
> rendertime: 16s on an Athlon XP 2500+
> 
> cu!
> --
> camera{location-z*3}#macro G(b,e)b+(e-b)*(C/50)#end#macro L(b,e,k,l)#local C=0
> ;#while(C<50)sphere{G(b,e),.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1
> ;#end#end L(y-x,y,x,x+y)L(y,-x-y,x+y,y)L(-x-y,-y,y,y+z)L(-y,y,y+z,x+y)L(0,x+y,
> <.5,1,.5>,x)L(0,x-y,<.5,1,.5>,x)                 // ZK http://www.povplace.com
> 
> 
> 
I've seen real clouds looking similar to those. Just add some landscape and you're
done :)

Alain

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