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From: MichaelJF
Subject: A Planetary Journey
Date: 9 Aug 2015 13:10:01
Message: <web.55c7887f1d940348a45e3d720@news.povray.org>
Playing around with media to model a sunrise I came up with the following image
finally.

And yes, there are people trying to walk a rope between hot air balloons. They
rely on their parachutes.

For the balloons I took an IRTC-Entry by Neil Alexander as starting point.
Image_maps of Earth and Mars are from NASA of course.

Enjoy and best regards,
Michael


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From: LanuHum
Subject: Re: A Planetary Journey
Date: 9 Aug 2015 13:20:01
Message: <web.55c78b5752ac8b067a3e03fe0@news.povray.org>
"MichaelJF" <mi-### [at] t-onlinede> wrote:
> Playing around with media to model a sunrise I came up with the following image
> finally.
>
> And yes, there are people trying to walk a rope between hot air balloons. They
> rely on their parachutes.
>
> For the balloons I took an IRTC-Entry by Neil Alexander as starting point.
> Image_maps of Earth and Mars are from NASA of course.
>
> Enjoy and best regards,
> Michael

Beauty!!! Sun! Very Beauty!!!


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From: clipka
Subject: Re: A Planetary Journey
Date: 9 Aug 2015 13:26:05
Message: <55c78d2d$1@news.povray.org>
Am 09.08.2015 um 19:06 schrieb MichaelJF:
> Playing around with media to model a sunrise I came up with the following image
> finally.

The media, trees and far-off balloons look gorgeous!

> And yes, there are people trying to walk a rope between hot air balloons. They
> rely on their parachutes.

I think the tightrope walker is a bit too large; maybe 70% of its size 
should be a better fit.

> For the balloons I took an IRTC-Entry by Neil Alexander as starting point.
> Image_maps of Earth and Mars are from NASA of course.

I'm not so happy with the Earth, Mars, red-white striped, and 
yellow-orange banded balloons; they look as if they didn't receive any 
sunlight, while instead glowing on their surface.

If this is supposed to be glow from the propane burners, it should be 
(1) darker, (2) more coloured, and (3) be more intense near the bottom 
of each balloon. One way to achieve this might be to place light sources 
at the propane burner locations with proper distance-based falloff, and 
use arse... um, I mean, backside illumination on the balloon skins 
("diffuse X,Y" or, better yet, "diffuse albedo X,Y", where X+Y < 1).


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From: MichaelJF
Subject: Re: A Planetary Journey
Date: 9 Aug 2015 14:25:00
Message: <web.55c79a9f52ac8b06a45e3d720@news.povray.org>
"LanuHum" <Lan### [at] yandexru> wrote:
> "MichaelJF" <mi-### [at] t-onlinede> wrote:
> > Playing around with media to model a sunrise I came up with the following image
> > finally.
> >
> > And yes, there are people trying to walk a rope between hot air balloons. They
> > rely on their parachutes.
> >
> > For the balloons I took an IRTC-Entry by Neil Alexander as starting point.
> > Image_maps of Earth and Mars are from NASA of course.
> >
> > Enjoy and best regards,
> > Michael
>
> Beauty!!! Sun! Very Beauty!!!

Many thanks from Germany to Russia!

Best regards,
Michael


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From: MichaelJF
Subject: Re: A Planetary Journey
Date: 9 Aug 2015 14:35:01
Message: <web.55c79d2252ac8b06a45e3d720@news.povray.org>
clipka <ano### [at] anonymousorg> wrote:
> Am 09.08.2015 um 19:06 schrieb MichaelJF:
> > Playing around with media to model a sunrise I came up with the following image
> > finally.
>
> The media, trees and far-off balloons look gorgeous!
>
> > And yes, there are people trying to walk a rope between hot air balloons. They
> > rely on their parachutes.
>
> I think the tightrope walker is a bit too large; maybe 70% of its size
> should be a better fit.
>
> > For the balloons I took an IRTC-Entry by Neil Alexander as starting point.
> > Image_maps of Earth and Mars are from NASA of course.
>
> I'm not so happy with the Earth, Mars, red-white striped, and
> yellow-orange banded balloons; they look as if they didn't receive any
> sunlight, while instead glowing on their surface.
>
> If this is supposed to be glow from the propane burners, it should be
> (1) darker, (2) more coloured, and (3) be more intense near the bottom
> of each balloon. One way to achieve this might be to place light sources
> at the propane burner locations with proper distance-based falloff, and
> use arse... um, I mean, backside illumination on the balloon skins
> ("diffuse X,Y" or, better yet, "diffuse albedo X,Y", where X+Y < 1).

Many thanks for your comments.

One has to make compromises in CG. The walker is 2.10 m in height. Huge but not
impossible. The main problem I saw was the rope and the balance pole. They are
/* very */ much thicker as they should be. But invisible otherwise. And still
the anti-aliasing has problems with them. But increasing the the anti-aliasing
recursion depth yielded problems with the general lighting. So I had to meet a
compromise.

For your suggestion of arse illumination I have to study a little bit more. But
not with this image. I like it, and it will be as it is.

Best regards,
Michael


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From: clipka
Subject: Re: A Planetary Journey
Date: 9 Aug 2015 14:44:22
Message: <55c79f86$1@news.povray.org>
Am 09.08.2015 um 20:34 schrieb MichaelJF:

> One has to make compromises in CG. The walker is 2.10 m in height. Huge but not
> impossible. The main problem I saw was the rope and the balance pole. They are
> /* very */ much thicker as they should be. But invisible otherwise. And still
> the anti-aliasing has problems with them. But increasing the the anti-aliasing
> recursion depth yielded problems with the general lighting. So I had to meet a
> compromise.

You might give UberPOV's stochastic anti-aliasing mode a try.


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From: Stephen
Subject: Re: A Planetary Journey
Date: 9 Aug 2015 14:56:04
Message: <55c7a244$1@news.povray.org>
>
> Enjoy and best regards,
> Michael
>

That is no bad, Michael

Might go as far as saying it is AWESUM

-- 

Regards
     Stephen


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From: MichaelJF
Subject: Re: A Planetary Journey
Date: 9 Aug 2015 15:05:01
Message: <web.55c7a45052ac8b06a45e3d720@news.povray.org>
Stephen <mca### [at] aolcom> wrote:
> >
> > Enjoy and best regards,
> > Michael
> >
>
> That is no bad, Michael
>
> Might go as far as saying it is AWESUM
>
> --
>
> Regards
>      Stephen

Thank you very much, Sir ;-)

Michael


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From: Stephen
Subject: Re: A Planetary Journey
Date: 9 Aug 2015 15:17:42
Message: <55c7a756$1@news.povray.org>
On 8/9/2015 8:04 PM, MichaelJF wrote:
> Stephen <mca### [at] aolcom> wrote:
>>>
>>> Enjoy and best regards,
>>> Michael
>>>
>>
>> That is no bad, Michael
>>
>> Might go as far as saying it is AWESUM
>>
>> --
>>
>> Regards
>>       Stephen
>
> Thank you very much, Sir ;-)
>

My pleasure. :-)


-- 

Regards
     Stephen


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From: Stephen
Subject: Re: A Planetary Journey
Date: 9 Aug 2015 16:25:57
Message: <55c7b755$1@news.povray.org>
On 8/9/2015 6:26 PM, clipka wrote:
> and use arse... um, I mean, backside illumination

;-)
I see what you did.
Alternative spelling: erse :-)

-- 

Regards
     Stephen


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