On 3-2-2019 10:26, ingo wrote:
> in news:5c569fc3$1@news.povray.org Thomas de Groot wrote:
> 
>> http://news.povray.org/povray.binaries.images/attachment/%3Cweb.4ac2c5
>> 52a7005b411322341f0@news.povray.org%3E/landscapetutorial.pov.txt
>>
> 
> Interesting.
> There once was an include file for realistic sky/(fog?) based on media
> that had proper absortion depending on the suns angle. Can't find it :(
> 
> Regarding tree placement, it would be nice if we could use voronoi
> (crackle) some howe to determine how big the crown of a tree can be before
> intersecting with the surrounding ones.
> The centre of the cell would be the trunk. The size of the cell the crown
> and the height of the tree.
> 
> http://math.lbl.gov/voro++/examples/ for inspiration,
> 
> ingo
> 

I have to do a bit of research, but my mind tells me 'Tek' (Tekno 
Frannansa) and a scene called 'Dawn'. I have it somewhere. Also there is 
Jaime Vives Piqueres who has produced realistic skies with LightsysIV. I 
have used it quite often but have to look that up too presently; will 
take a little time.

-- 
Thomas

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