POV-Ray : Newsgroups : povray.binaries.images : Planet texture WIP #3 - Coast Server Time
31 Jul 2024 22:09:29 EDT (-0400)
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From: Tek
Subject: Re: Planet texture WIP #3 - Coast
Date: 23 Jul 2009 17:17:04
Message: <4a68d350@news.povray.org>
"Mike Raiford" <"m[raiford]!at"@gmail.com> wrote in message 
news:4a68c8d8@news.povray.org...
>
> are the buildings randomly oriented?

They're generated using crackle solid metric 1, so there's not really a 
concept of orientation.

-- 
Tek
http://evilsuperbrain.com


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From: Alain
Subject: Re: Planet texture WIP #3 - Coast
Date: 25 Jul 2009 15:19:26
Message: <4a6b5abe$1@news.povray.org>

> Yeah the road pattern needs some other influences, particularly to avoid the 
> sea.
> 
> You're right about the scale it's waaaaay off! The man-made things are huge 
> compared to the planet. Basically the view I plan to use is from space, and 
> I need the planet to look inhabited, so I'm going to keep tweaking the scale 
> in the final image.
> 
> Also it's a sci-fi future so maybe 58-lane freeways and 10,000 room tower 
> blocks are normal :)
> 

Or single buildings housing 10 000 000+ peoples who also work it that 
same building...
This make me think of Azimov's Steel caves. Huge cities made of 
interconnected buildings so huge that you no longer know that there is 
something called "outside" ou what a "sky" is.


Alain


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From: Alain
Subject: Re: Planet texture WIP #3 - Coast
Date: 25 Jul 2009 15:28:43
Message: <4a6b5ceb$1@news.povray.org>

> I may be over-thinking this... here's a map of the temperatures on this 
> planet!
> 
> My theory is that rather than simply randomly placing different types of 
> terrain, if I can get nice patterns for temperature and rainfall that are 
> different but related to the continental pattern, then in theory I should 
> get a much more realistic looking planet.
> 
> I'm working on a rainfall map now :)
> 
> 
I think that it's a very good idea.
It looks like it's a surface temperature, and it gets coldre at high 
altitude.

Now, tou realy be complete, you also need a water and a high temperature 
mao.

The vegetation will be more abundent east of the areas of high see 
temperatures.


Alain


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From: nemesis
Subject: Re: Planet texture WIP #3 - Coast
Date: 26 Jul 2009 00:05:01
Message: <web.4a6bd5c8515abde55e2332f70@news.povray.org>
Warp <war### [at] tagpovrayorg> wrote:
> What are those cracks on the landscape? Roads? They don't look like
> very "natural" (so to speak) roads.

I thought of "tektonic" plates. :P

amazing as usual...


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From: clipka
Subject: Re: Planet texture WIP #3 - Coast
Date: 26 Jul 2009 09:25:01
Message: <web.4a6c58ca515abde5877441c40@news.povray.org>
Alain <aze### [at] qwertyorg> wrote:
> The vegetation will be more abundent east of the areas of high see
> temperatures.

Depends on the direction of rotation :P


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From: Cousin Ricky
Subject: Re: Planet texture WIP #3 - Coast
Date: 26 Jul 2009 17:30:00
Message: <web.4a6cc9b2515abde578641e0c0@news.povray.org>
"clipka" <nomail@nomail> wrote:
> Alain <aze### [at] qwertyorg> wrote:
> > The vegetation will be more abundent east of the areas of high see
> > temperatures.
>
> Depends on the direction of rotation :P

Also on prevailing wind direction, I would think.  Much oversimplified wind
directions on my west-to-east rotating planet, for example:

+90  Calm (polar high)
     Northeast
+60  Calm (polar front)
     Southwest
+30  Calm (subtropical high, "horse latitudes")
     Northeast ("trade winds")
  0  Calm (intertropical convergence zone, "doldrums")
     Southeast
-30  Calm (subtropical high)
     Northwest
-60  Calm (polar front)
     Southeast
-90  Calm (polar high)

http://en.wikipedia.org/wiki/Atmospheric_circulation
http://en.wikipedia.org/wiki/File:Earthmap720x360_grid.jpg

Contrary to popular belief, flush toilets do *not* follow this plan:

http://www.ems.psu.edu/~fraser/Bad/BadCoriolis.html


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From: clipka
Subject: Re: Planet texture WIP #3 - Coast
Date: 26 Jul 2009 17:55:01
Message: <web.4a6cd0ae515abde5877441c40@news.povray.org>
"Cousin Ricky" <ric### [at] yahoocom> wrote:
> > Depends on the direction of rotation :P
>
> Also on prevailing wind direction, I would think.  Much oversimplified wind
> directions on my west-to-east rotating planet, for example:

Note that the prevailing wind directions *are* dependent on the direction of
rotation ;)


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From: Thomas de Groot
Subject: Re: Planet texture WIP #3 - Coast
Date: 27 Jul 2009 07:30:41
Message: <4a6d8fe1@news.povray.org>
That's the spirit!

Thomas


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From: Thomas de Groot
Subject: Re: Planet texture WIP #3 - Coast
Date: 27 Jul 2009 07:35:53
Message: <4a6d9119$1@news.povray.org>
"clipka" <nomail@nomail> schreef in bericht 
news:web.4a6c58ca515abde5877441c40@news.povray.org...
>
> Depends on the direction of rotation :P

...and on the orientation of mountain ranges versus coasts and versus 
rotation, creating rain shadows....

Thomas


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From: Christian Froeschlin
Subject: Re: Planet texture WIP #3 - Coast
Date: 27 Jul 2009 15:15:11
Message: <4a6dfcbf@news.povray.org>
Tek wrote:

> After a bit of googling I found this image:
> http://coastalchange.ucsd.edu/images/refraction2.jpg

but that is rather a "closeup" with at most a few kilometers
field of view. Your image seems to have a curved horizon which
indicates a scale at least two magnitudes higher (although it's
a bit difficult to tell as only a short section is visible).


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