On Mon, 19 Nov 2001 14:16:26 +0100, "Thorsten Froehlich" <tho### [at] trfde>
wrote:
> Yes, I say it "changes your max_gradient", so if it *changes* your
> max_gradient, how can it report *your* max_gradient?

Can't it be remembered in local variable? It can report isosurface line within
source. Why it can't remember initial value? It shows line and then says 'value
was set to ...'

> Anyway, just take my word for it:  This has long ago been fixed for the
> _next_ beta.

Ok. I don't like bothering so sorry for this long bothering :-)

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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