Scottish the pig <sco### [at] yahoocom> wrote in 
news:3E1### [at] yahoocom


> error_bound 1.8

1.0 and 0.4 for final trace

> recursion_limit 2

3, and 4 or 5 for final trace

> brightness 1.5

i always use 1.0

and most important - modify textures in scenes 
a) set higher diffuse i.e. 0.9
b) set ambient to 0.0 
  default { finish { ambient 0 diffuse .9 } } 

and set assumed_gamma to 1.9 or even 1.5


-- 
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M

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