Am 07.02.2023 um 10:11 schrieb Thomas de Groot:
> 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.
Indeed a very nice and realistic image. I only hope your bird of prey 
will find a marmot behind the ridge.

Best regards
Michael

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