FrEaK wrote:
> I'm going through the tutorials and am up to isosurfaces.  All their example
> images have a different color for the surface of the function than for the
> containing box.  And this is the one section of the tutorial without sample
> scene code!  How do you make the containing box gray and the surface tan?
> 
> 
I don't think you get it from the iso alone

They are using some sort of trick to produce the illustration
maybe:
#declare F = function { abs(x)-1+y }

intersection {
         isosurface {
                 function { F (x,y,z) }
                 contained_by { box { -1.1, 1.1 } }

                 pigment { rgb Tan }


         }
         box { -1.0, 1.0 pigment { rgb .8 }}
}

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