POV-Ray : Newsgroups : povray.binaries.images : Heightfields of sediment layers : Re: Heightfields of sediment layers Server Time
2 Dec 2023 13:55:53 EST (-0500)
  Re: Heightfields of sediment layers  
From: Samuel B 
Date: 22 Sep 2023 19:10:00
Message: <web.650e1e8ab769c3e816bed5696e741498@news.povray.org>
Thomas de Groot <tho### [at] degrootorg> wrote:
> Following the discussion p.a-u on how to generate sediment layering
> without immediately requiring the use of isosurfaces, I have been
> playing a bit with different ideas.
> First, in order to focus on something tangible, I got two Real World
> examples:
> https://geologylearn.blogspot.com/2015/11/sedimentary-structures.html
> Then, I used Gimp to draw a rough b/w image. This image I loaded into
> GeoControl, my old heightfield generator, and exported a .tga image_map
> that I could use as height_field in POV.
> A tentative result is attached here. Not bad for a first,I think. :-)
> Note: Jaime Vives Piqueres is the author of hf2iso. I can recommend it
> if you want to play with isosurface landscapes.
> --
> Thomas

It looks very promising, Thomas! Any idea yet how you would go about
constructing an entire feature (e.g. cliffside in a landscape)?

The links you posted are quite inspiring. The first image in the first link is
something I've tried to do, but always seem to fail at. Later on that page, I
was amazed to see that sand ripples could be captured in such a way.

Ultimately, nothing will beat a full 3d simulation using voxels or similar, but
who's got the hardware for that? (Or the algorithms? ;P)

Btw, they mentioned Zion National Park. Did you ever get to go there? I was
there when I was six, on a road trip my dad took us on when following a
meandering path to Montana. Zion was my favorite out of all the places we
visited. The reddish cliffs were pure eye candy. I was hoping to see some desert
sandstone plateaus, but we never passed through any such areas :(


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