"Alain" <aze### [at] qwertygov> wrote in message 
news:41bb0410@news.povray.org...
> hf_grey_16 is good for generating the hight field image, not for using it. 
> It enable you to have 65536 hight values instead of only 256.
>
> Alain

Oh, my mistake then. I took it that he was generating a height_field. Of 
course, I was always chastised for making height_field generation harder 
than it should be.

- Grim

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