I'm sorry to put forward such silly (?) questions here in the advanced.users
group, but I'm believe you are the only one to answer me, because it this is
not a bug, then it it a weird feature. I think .. :/

This works fine:

isosurface {
        function {
                ((2*x^2+y^2+z^2-1)^3 - (0.1)*x^2*z^3-y^2*z^3 ) //+
(0.00*Noize)

        }
        threshold 0
        accuracy 0.00001
        sign 1
        max_gradient 20
        max_trace 2
        contained_by { sphere { 0, 7 } }
        pigment {
                color Grey
        }
}

However, when i remove the // before the Noize addidtion, nothing appears
when I render! MegaPov speeds up, and leaves me with the background.

Anyone?

TIA

5k.

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