On Wed, 12 Dec 2001 22:37:08 +0100, "Rune" <run### [at] mobilixnetdk> wrote:
> "W?odzimierz ABX Skiba" wrote:
> > it is not easy - I have rendered scene with rgbft 1
> > and rgbt 1 and results are different.
> > second version trace correct but should both imo.
> > I wonder it is my misunderstand or candidate for
> > beta-test report.
>
> It is a misunderstanding if you think that they should render the same way.
> When filter + transmit > 1 you should expect strange results. Look in the
> documentation.

Thanks for clarification but now I must believe you. I can't find any note about
it within beta 8 documentation. I've checked 9.1.2, 6.1.5, 3.7.1.4. Perhaps I
missed some sentence. But... such combination (filter + transmit > 1) is used
within sample file as fog and it doesn't look strange.

ABX
--
#declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb 1}}
union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{ //ABX
function{_(x-2,y,1)&_((x+y)*.7,z,.1)&_((x+y+2)*.7,z,.1)&_(x/2+y*.8+1.5,z,.1)}
contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient 1}}//POV35

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