3bc31497@news.povray.org...
> But I mostly get a black result. The form is only recognizeable if I use 5
> or 6 steps istead of 255.. What's wrong, and are there more clever ways?

Why not just use a simple gradient ? Something like this (untested, but
that's the idea) :
#declare BMin=...
#declare BMax=...
isosurface{
    function{...}
    contained_by{box{BMin,BMax}}
    pigment{
        gradient y
        scale BMax.y-BMin.y
        translate BMin.y*y
    }
}

G.
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Hello everyone

Thanks very much for your inputs. Your ideas with using a pigment gradient
from 0 to 1 is just what I needed and I realize my own approch was very
clumsy.. As for the "heightfield { function { " keyword, I didn't know it
supported isosurfaces.. In the docs, it sounded to me like it was only for
generators like bozo, agate, leopard, etc..

Regarding isosurfaces in v3.5 I still think I could render many things
quicker in Megapov with method 1.. Let me test it..

Be back,
Hugo

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