POV-Ray : Newsgroups : povray.general : Using a function in a height_field declaration : Re: Using a function in a height_field declaration Server Time
15 Jul 2024 13:26:06 EDT (-0400)
  Re: Using a function in a height_field declaration  
From: Kenneth
Date: 14 Feb 2023 14:35:00
Message: <web.63ebe14443a1dd889b4924336e066e29@news.povray.org>
"Kenneth" <kdw### [at] gmailcom> wrote:
> If you mean that the 'center' of the sine wave circle is
> not 'at the origin' but at z=1 instead, that could be due to a long-standing
> problem with how functions are kind of mirror-reversed when used in a
> height_field...

BTW: That old problem had strange effects: no only of the z effect of the
function being reversed to '-z', but also x to -x. It was -- is? --a
'double-reversal' mirror effect...with the 'origin' of the function moved to
z=1, not at <0,0,0>.

I thought for sure that this had been corrected, but I have not played around
lately with such height_fields to see.

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