"Tom Melly" <tom### [at] tomandlucouk> schrieb im Newsbeitrag
news:3da2ac3e$1@news.povray.org...
> Here, the texture function becomes superfluous (IMHO), since the entire
surface
> will have the same threshold, meaning that only one entry in the texture
map
> will be used.
>

Yes, you are right, but that problem is solved by the mentioned method. One
could even use multiple y-values of the function if that's necessary (if the
surface hangs over f.e.) by using a gradient pattern and function-patterns
in the various parts of the texture_map{}. It was never necessary for me
'til now though.

Marc-Hendrik

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