Ruy wrote:

>   radiosity {
>     pretrace_start 0.08
>     pretrace_end   0.005
>     count 400
>     error_bound 0.1
>     recursion_limit 1
>   }

I am not a rad expert (far from it), but I get good results with...

pretrace_start 0.01
pretrace_end 0.005
error_bound 0.25
count 300
nearest_count 7

I can also remember posts about radiosity slowing considerably with transperent
objects, though I have no experience rendering such scenes.

MJL

--
light_source{9*(y#macro A(H,B,R,T)prism{0,1H+4,0u*9,9v*9,0#local I=1;#while(I<H)
#local V=asc(substr(B,I,1))-33;<div(V,10)mod(V,10)>#local I=I+1;#end pigment{rgb
y}rotate-<90,R>translate-T}#end-z)rgb 9}A(14",6;MWmhryXN3,"60<15,0,8>)box{-99(x+
z)*99pigment{rgb 1}}fog{distance 11}camera{location(y-z)*25look_at 0}A(8"6hiAG=6
"-60x*-10)A(16"/.@VZno=<PLA89/"0x*5) // MJL

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