Chris Huff schrieb in Nachricht ...
>In article <3aacfffc$1@news.povray.org>, "Tom Melly" 
><tom### [at] tomandlucouk> wrote:
>
>> I want a band of mountains on the horizon that drop to foothills and 
>> finally a plane as z approaches 0.
>> 
>> #declare MountFunc = function {"ridgedMF" <1,5,3,1/3,50>}
>> with
>> function{ y + (MountFunc(x*z,0,z)*5)}  // (note the x*z)
>
>Try: function {y - MountFunc(x,0,z)*5*min(0, z)}


Should be max(0,z), no? Else you would only get negative z.

Marc-Hendrik

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