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From: Sven Littkowski
Subject: Re: The Colony Ship
Date: 8 Feb 2016 01:33:04
Message: <56b836a0$1@news.povray.org>
That "backbone" (construction along the middle axis) is actually having
a diameter of 500 meters, and the oxygen chambers are integrated into
the inside and walls, where the immense light (mounted on the outside of
the backbone) is reaching just in parts, indirectly, forwarded only
through the light-transporting ability of that artificial tissue. I
might have to make,maybe, a sketch, to give a better idea about the layout.


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From: Sven Littkowski
Subject: Re: The Colony Ship
Date: 8 Feb 2016 01:41:12
Message: <56b83888$1@news.povray.org>
When we speak or even think about such things, we must not do this by
imaging the materials we are using today. I agree, the bigger an object,
the more fragile it is.

I personally believe, as our knowledge and skills expand steadily
through the decades and centuries (and millennia), we will have very
exotic and very stable materials in the future. Already today, we are
able to process and also to manipulate materials on the nano level, even
molecular.

For some of the space vessels of my Space Ark, to give an example, I
imagined an out material of industrially grown (or even 3D-printed)
diamond, with integrated circuits and sensors and all such, all grown on
a molecular level.

Same here: for such a hypothetical vast construction like this habitat
cylinder, the children of our children would use materials that overcome
the weaknesses of today's materials.

But beside: I am also stating clearly, that I believe, such habitat
cylinders will never be build. Before that happens, our progenies will
found ways to simulate gravity through something in the ship floors. The
attributes of matter are responsible for gravity. They will find ways,
as we always have found. I think, I even would take some bet on that.

I just render my own cylindrical habitat, because Mike Horvath's habitat
inspired me, I admit. :-)


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From: Sven Littkowski
Subject: Re: The Colony Ship
Date: 8 Feb 2016 01:45:50
Message: <56b8399e@news.povray.org>
My architects continued on our artificial light. See here the day
colors, the night, and the light colors in between. I made sure, the
evenings are full of beautiful colors.

But what about the morning light? At the moment, it is identical to our
sunset light. But in real life, ti is not. If you like, propose your own
colors for the morning light. For that purpose, I have attached my
self-developed POV-Ray color mixer. And below, see the existing Sunset code.

------------------

#declare LightSectionHalf = union
{
 light_source { < 0.0, LightDistance, 0.0 > rgb < 1.00000, 0.98824,
0.88235 > * MyLightMultiplicator*25 spotlight point_at < 000.0, -1500.0,
0.0 > radius 10 tightness 10 falloff 20 rotate < 0.0, 0.0,  2.5 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 1.00000, 0.98824,
0.88235 > * MyLightMultiplicator*25 spotlight point_at < 050.0, -1350.0,
0.0 > radius 10 tightness 10 falloff 20 rotate < 0.0, 0.0,  2.5 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 1.00000, 0.98824,
0.88235 > * MyLightMultiplicator*25 spotlight point_at < 100.0, -0950.0,
0.0 > radius 10 tightness 10 falloff 20 rotate < 0.0, 0.0,  2.5 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 1.00000, 0.98824,
0.88235 > * MyLightMultiplicator*25 spotlight point_at < 150.0, -0700.0,
0.0 > radius 10 tightness 10 falloff 20 rotate < 0.0, 0.0,  2.5 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 1.00000, 0.98824,
0.88235 > * MyLightMultiplicator*18 spotlight point_at < 175.0, -0600.0,
0.0 > radius MyRadius tightness MyTightness falloff MyFalloff rotate <
0.0, 0.0,  5.0 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 1.00000, 0.88627,
0.50196 > * MyLightMultiplicator*15 spotlight point_at < 200.0, -0550.0,
0.0 > radius MyRadius tightness MyTightness falloff MyFalloff rotate <
0.0, 0.0,  7.5 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 1.00000, 0.69412,
0.28235 > * MyLightMultiplicator*12 spotlight point_at < 225.0, -0500.0,
0.0 > radius MyRadius tightness MyTightness falloff MyFalloff rotate <
0.0, 0.0, 10.0 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 0.99608, 0.35686,
0.08627 > * MyLightMultiplicator*09 spotlight point_at < 250.0, -0450.0,
0.0 > radius MyRadius tightness MyTightness falloff MyFalloff rotate <
0.0, 0.0, 12.5 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 0.76863, 0.27059,
0.05882 > * MyLightMultiplicator*06 spotlight point_at < 275.0, -0400.0,
0.0 > radius MyRadius tightness MyTightness falloff MyFalloff rotate <
0.0, 0.0, 15.0 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 0.54902, 0.10980,
0.10980 > * MyLightMultiplicator*04 spotlight point_at < 300.0, -0350.0,
0.0 > radius MyRadius tightness MyTightness falloff MyFalloff rotate <
0.0, 0.0, 17.5 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 0.43922, 0.09412,
0.16078 > * MyLightMultiplicator*02 spotlight point_at < 325.0, -0300.0,
0.0 > radius MyRadius tightness MyTightness falloff MyFalloff rotate <
0.0, 0.0, 20.0 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 0.31373, 0.07843,
0.14902 > * MyLightMultiplicator*00 spotlight point_at < 350.0, -0250.0,
0.0 > radius MyRadius tightness MyTightness falloff MyFalloff rotate <
0.0, 0.0, 22.5 > }
 light_source { < 0.0, LightDistance, 0.0 > rgb < 0.15294, 0.04706,
0.10588 > * MyLightMultiplicator*00 spotlight point_at < 375.0, -0200.0,
0.0 > radius MyRadius tightness MyTightness falloff MyFalloff rotate <
0.0, 0.0, 25.0 > }
}


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Attachments:
Download 'sl - colony ship i.png' (42 KB) Download 'povcolors.exe.dat' (418 KB)

Preview of image 'sl - colony ship i.png'
sl - colony ship i.png

From: Mike Horvath
Subject: Re: The Colony Ship
Date: 8 Feb 2016 01:48:03
Message: <56b83a23$1@news.povray.org>
On 2/8/2016 1:40 AM, Sven Littkowski wrote:
> When we speak or even think about such things, we must not do this by
> imaging the materials we are using today. I agree, the bigger an object,
> the more fragile it is.

I didn't mean so much the substances used in the construction of the 
habitat. Rather, that it's hard to keep a long cylinder from wobbling 
out of control.


Mike


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From: Sven Littkowski
Subject: Re: The Colony Ship
Date: 8 Feb 2016 03:52:23
Message: <56b85747$1@news.povray.org>
Yes, point taken. :-)


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From: Sven Littkowski
Subject: Re: The Colony Ship
Date: 8 Feb 2016 03:53:39
Message: <56b85793@news.povray.org>
My landscapers seeded the habitat.

But for now, only pigments used, not yet any real texture.


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Attachments:
Download 'sl - colony ship i.png' (54 KB)

Preview of image 'sl - colony ship i.png'
sl - colony ship i.png


 

From: Sven Littkowski
Subject: Re: The Colony Ship
Date: 8 Feb 2016 04:00:05
Message: <56b85915@news.povray.org>
Another view, taken from a location closer to the ground. I still have
to adjust the colors.

But I am wondering, if I should have a landscape with lakes in between
as it is now, or if I should have on the one end an "ocean" and from the
middle to the other end a landscape of hills, slowly raising towards the
end, where the ring-shaped town could be.

What do you think, would be most logical?


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Attachments:
Download 'sl - colony ship i.png' (43 KB)

Preview of image 'sl - colony ship i.png'
sl - colony ship i.png


 

From: Sven Littkowski
Subject: Re: The Colony Ship
Date: 8 Feb 2016 09:27:53
Message: <56b8a5e9@news.povray.org>
New view, close to the gently hilled ground, now with highest quality
and radiosity.

Still, I am thinking about a re-design of the landscape: on the one
cylinder's end a ring ocean, then gently rising hills, and on the other
cylinder's end a ring town. What do you think?


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Attachments:
Download 'sl - colony ship i.png' (45 KB)

Preview of image 'sl - colony ship i.png'
sl - colony ship i.png


 

From: clipka
Subject: Re: The Colony Ship
Date: 8 Feb 2016 15:31:09
Message: <56b8fb0d$1@news.povray.org>
Am 08.02.2016 um 09:53 schrieb Sven Littkowski:
> My landscapers seeded the habitat.
> 
> But for now, only pigments used, not yet any real texture.

You should render the scene with radiosity, just to get an idea of how
much the sunny side will illuminate the dark side.


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From: Mike Horvath
Subject: Re: The Colony Ship
Date: 8 Feb 2016 16:28:31
Message: <56b9087f$1@news.povray.org>
On 2/8/2016 9:27 AM, Sven Littkowski wrote:
> New view, close to the gently hilled ground, now with highest quality
> and radiosity.
>
> Still, I am thinking about a re-design of the landscape: on the one
> cylinder's end a ring ocean, then gently rising hills, and on the other
> cylinder's end a ring town. What do you think?
>

I've tried generating terrain textures in the past with unsatisfactory 
results.


Mike


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