Thomas de Groot <tho### [at] degrootorg> wrote:
> Hi,
> Last December, looking for something else, I cam across my scene from 2009:
>
>
https://news.povray.org/povray.binaries.images/thread/%3C4b1bcc05%40news.povray.org%3E/?ttop=439213&toff=2250
>
> At the time, Christian Froeshlin suggested towards the end of that
> thread, to use a sub-heightfield to account for better details on the
> foreground. He kindly provided code to achieve this. For some reason, I
> never got around to get acquainted with the code and the project was put
> on hold.
>
> So, I started experimenting and I finally came up with two macros, one
> for "pure" functions, and one for height_field map-based functions
> (which need to be slightly cropped around the edges).
>
> I applied this last macro to my scene, excluded the scattering of rocks
> (I was not happy with those anyway), and took the opportunity to improve
> several awkward coding aspects of the scene, in particular the textures.
> The final result is this.
>
> If somebody is interested, I can provide the macros of course.
> --
> Thomas

OMG ! you did it again, that's some terrific improvement, of course I for one
would love the code, but this would also be such a great addition to have an
"official" tutorial on that "sub-heightfield" technique on the wiki !
Thanks for not giving up on that inspiring old paused work !

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