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I'm working on an IRTC entry, and it's given me an excuse to have a go at
another procedural planet texture (here's my previous effort, from 6 years
ago!
http://news.povray.org/povray.binaries.images/thread/%3C3e2842e8%40news.povray.org%3E/
)
.
At present this is all flat pigments, but it's already got a lot of details
I'm pretty pleased with. Next I plan on sorting out the bumps, finish, and
atmosphere, but I'd welcome any suggestions.
Cheers,
--
Tek
http://evilsuperbrain.com
P.S. I'm back ;)
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Attachments:
Download 'planet_surface.jpg' (545 KB)
Preview of image 'planet_surface.jpg'
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"Tek" <tek### [at] evilsuperbrain com> wrote in message
news:4a550f0b@news.povray.org...
> At present this is all flat pigments, but it's already got a lot of
details
> I'm pretty pleased with. Next I plan on sorting out the bumps, finish, and
> atmosphere, but I'd welcome any suggestions.
Not bad, but a little too fractal, telltale CG. Granted, we have only one
datum and reliance on it may be too much, but I don't see any geophysical
forces of nature creating convoluted terrain that is typical of "pure"
implementations based on fractal noise or similar mathematically abstract
patterns.
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High!
Tek wrote:
> I'm working on an IRTC entry, and it's given me an excuse to have a go at
> another procedural planet texture (here's my previous effort, from 6 years
> ago!
Better than anything I could produce offhandly... but you also should
take into account the gradual change of vegetation towards the poles -
an island of lush green enclosed by polar sea ice is highly
unbelievable, one would instead expect pale greenish-gray tundra there
(spotted with small lakes from recent glaciation)! Perhaps you should
take a look at the Blue Marble mosaics
(http://visibleearth.nasa.gov/view_set.php?categoryID=2363) for the
colors of vegetation in different climate zones (also at different
seasons!)...
And I also miss mountain ranges on your planet, i. e. streaks of rocky
gray terrain...
The whole thing is also very interesting to me, as I myself started
POV-Ray projects involving "planet design" - PoVSolar, the
Whatmough/Port Whatmough 2353 scenario and the Shams
System/Qais/Ghurghusht scenario - perhaps we might join forces in
certain aspects of our works?
See you in Khyberspace!
Yadgar
Now playing: Love Song (Simple Minds)
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Great!
It is effectively too "fractal" for a true planet (but I like it so),
mainly for a scale question imho: e.g. the Earth has more water than
terrain visible.
I like a lot the color used.
;-)
Paolo
>Tek on date 08/07/2009 23:26 wrote:
> I'm working on an IRTC entry, and it's given me an excuse to have a go at
> another procedural planet texture (here's my previous effort, from 6 years
> ago!
>
http://news.povray.org/povray.binaries.images/thread/%3C3e2842e8%40news.povray.org%3E/
)
> .
>
> At present this is all flat pigments, but it's already got a lot of details
> I'm pretty pleased with. Next I plan on sorting out the bumps, finish, and
> atmosphere, but I'd welcome any suggestions.
>
>
> Cheers,
>
Post a reply to this message
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Thanks for the comments! I've rendered a few variations with some slightly
improved materials & lighting.
"somebody" <x### [at] ycom> wrote in message news:4a553a85$1@news.povray.org...
> Not bad, but a little too fractal, telltale CG.
Yeah good point, I might try layering in some low-frequency pattern to give
a bit of a tectonic plate feel to things.
news:4a55e1a3@news.povray.org...
> you also should take into account the gradual change of vegetation
> towards the poles - an island of lush green enclosed by polar sea ice
> is highly unbelievable, one would instead expect pale greenish-gray
> tundra there (spotted with small lakes from recent glaciation)!
Good suggestion, I've already got the green transitioning to a desert near
the equator so doing something similar near the poles would make sense.
Though the problem with a lot of photos of earth from space is they've been
colour corrected, and the main thing I'm trying for is to create something
that looks realistic when it has an atmosphere on it.
> And I also miss mountain ranges on your planet, i. e. streaks of rocky
> gray terrain...
There are some, but that first image didn't have any normal maps so they're
not obvious. They're also not terribly obvious in this new picture but trust
me they're there!
> perhaps we might join forces in certain aspects of our works?
Well I'll be releasing full source when I submit my IRTC image next month,
but I'm really only developing this for use in the background so I'm not
taking it super seriously :)
--
Tek
http://evilsuperbrain.com
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Attachments:
Download 'planet_surface_lit.jpg' (497 KB)
Preview of image 'planet_surface_lit.jpg'
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Now all you need is to generate clouds as well... :)
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Warp wrote:
> Now all you need is to generate clouds as well... :)
Now, you should know better than to challenge Tek.
Rich
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> Thanks for the comments! I've rendered a few variations with some slightly
> improved materials & lighting.
>
>
> "somebody" <x### [at] ycom> wrote in message news:4a553a85$1@news.povray.org...
>> Not bad, but a little too fractal, telltale CG.
>
> Yeah good point, I might try layering in some low-frequency pattern to give
> a bit of a tectonic plate feel to things.
>
>
> news:4a55e1a3@news.povray.org...
>> you also should take into account the gradual change of vegetation
>> towards the poles - an island of lush green enclosed by polar sea ice
>> is highly unbelievable, one would instead expect pale greenish-gray
>> tundra there (spotted with small lakes from recent glaciation)!
>
> Good suggestion, I've already got the green transitioning to a desert near
> the equator so doing something similar near the poles would make sense.
> Though the problem with a lot of photos of earth from space is they've been
> colour corrected, and the main thing I'm trying for is to create something
> that looks realistic when it has an atmosphere on it.
>
If you look at our planet, you'll notice that deserts are not present at
the equator, but occupy 2 belts sadling the tropical lines. There are
more deserts in the temperate regions than under the tropics.
The equator itself is prety green. The greenest parts of Africa sits
across the equator.
Alain
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"Alain" <aze### [at] qwertyorg> wrote in message
news:4a57ff16@news.povray.org...
> If you look at our planet, you'll notice that deserts are not present at
> the equator, but occupy 2 belts sadling the tropical lines. There are more
> deserts in the temperate regions than under the tropics.
> The equator itself is prety green. The greenest parts of Africa sits
> across the equator.
It's starting to sound like I should actually look at some photos of earth
:)
--
Tek
http://evilsuperbrain.com
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[...]
> If you look at our planet, you'll notice that deserts are not present at
> the equator, but occupy 2 belts sadling the tropical lines. There are
> more deserts in the temperate regions than under the tropics.
> The equator itself is prety green. The greenest parts of Africa sits
> across the equator.
>
>
>
> Alain
Hello!
Maybe I'm wrong (I'm remembering) but you're right thinking in the
planet as it is now. The desertic zones you mention, are due to the
actual position of the tectonic plates, afecting the main ocean streams
that habve a direct relationship with the global climate.
In other planets, with other tectonics, other weather, there could be
deserts at others latitudes
Anyway, very beatiful texture Tek.
Regards.
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