John M. Dlugosz wrote in message <3aaebef8@news.povray.org>...

>Is it *possible* to port these textures over?  This is not a slight
roundoff
>problem or a "bug" -- this is the fractal function that they were designed
>for!  Just like we have several to choose from now, we still need the old
>one.  Maybe that's not what the function was meant to be when it was
>written, but what it *is* was appreciated by some and used as such.


To port color_maps/pigment_maps/whatever_maps from the old (clipped) noise3D
to the new (scaled) version, divide all map indices by 2 and add 0.25.  For
example,

color_map{
    [.2 rgb 1]
    [.5 rgb <1,1,0>]
    [.7 rgb <0,0,1>]
}

becomes

color_map{
    [.35 rgb 1]
    [.5  rgb <1,1,0>]
    [.6  rgb <0,0,1>]
}

--
Mark

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