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"Sven Littkowski" <sve### [at] jamaica-focus com> wrote in message
news:447b250a@news.povray.org...
> Planet Earth, latest version. Atmosphere, 3D clouds, 3D continents,
> lights. Question: how to limit lights to only the nightside? Sven
>
Try playing with this and adapt it to your needs. It basically uses the
object pattern with a plane oriented to the direction of the sun. Inside
the plane (away from the sun) the Earth light image map is used, outside the
plane (toward the sun) the texture is transparent.
//start
global_settings {
assumed_gamma 1
max_trace_level 10 }
camera{
up y
right x*image_width/image_height
angle 60
location <30,30,30>
look_at 0
}
#local SunLoc= <-500,0,100>; //Sun location
light_source { SunLoc rgb 1 } //Sun
sphere{0 9.9999 //planet below
pigment {rgb <0,0,1>}
finish {ambient 0 diffuse 1}
}
#local Lights=
texture{
pigment {image_map {png "Earth_Lights.png" interpolate 4 map_type 1}}
finish {ambient 4 diffuse 0}
}
#local NoLights=
texture{
pigment {rgbt 1}
finish {ambient 1 diffuse 0}
}
#local OBJ=plane {SunLoc 0}
sphere{0 10
texture {
object{
OBJ
texture{NoLights}
texture{Lights}
}
}
}
//end
-tgq
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Hi.
Well, the 1 MB contains the entire posting. Without text you are close to 1
MB just for the image alone, and the size available for the image shrinks
down accordingly to the amount of text you use in your posting. Simpler:
text and image have to share 1 MB.
Greetings,
Sven
"EagleSun" <nomail@nomail> schrieb im Newsbeitrag
news:web.447b6ea51f1312434fa2c32c0@news.povray.org...
> How did you get the 1 MB limit?!? My limit is set to 700 KB.
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Hi.
For everyone eager to do similar planet renders, you find hi-res Earth
images and bump maps here:
http://visibleearth.nasa.gov/view_set.php?categoryId=2355&p=1
Their entire section is called Blue Marble Next generation, and belongs to
NASA's Jet Propulsion Laboratory.
But besides that, who can give me links to similar hi-res images and bump
maps for the other planets, moons and rings?
Thanks,
Sven
Post a reply to this message
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"Sven Littkowski" <sve### [at] jamaica-focuscom> wrote in message
news:447b250a@news.povray.org...
> Planet Earth, latest version. Atmosphere, 3D clouds, 3D continents,
> lights. Question: how to limit lights to only the nightside? Sven
>
Try playing with this and adapt it to your needs. It basically uses the
object pattern with a plane oriented to the direction of the sun. Inside
the plane (away from the sun) the Earth light image map is used, outside the
plane (toward the sun) the texture is transparent.
//start
global_settings {
assumed_gamma 1
max_trace_level 10 }
camera{
up y
right x*image_width/image_height
angle 60
location <30,30,30>
look_at 0
}
#local SunLoc= <-500,0,100>; //Sun location
light_source { SunLoc rgb 1 } //Sun
sphere{0 9.9999 //planet below
pigment {rgb <0,0,1>}
finish {ambient 0 diffuse 1}
}
#local Lights=
texture{
pigment {image_map {png "Earth_Lights.png" interpolate 4 map_type 1}}
finish {ambient 4 diffuse 0}
}
#local NoLights=
texture{
pigment {rgbt 1}
finish {ambient 1 diffuse 0}
}
#local OBJ=plane {SunLoc 0}
sphere{0 10
texture {
object{
OBJ
texture{NoLights}
texture{Lights}
}
}
}
//end
-tgq
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Hi Trevor,
many thanks for your code. I might just do it and try it out. But it seems,
I found a good solution on my own. Right now I am rendering a 6400x4800
pixels image of the Earth, with improved features.
I made some really good changes to the nightside lights - they are now much
more descent (it really needs such a big resolution to see them - just as in
nature), and they are now only visible at the nightside because of their
ambient value and because of their colors. Was a tricky thing, but it works
now.
As soon as the render has completed, I am going to post that image here.
Greetings,
Sven
"Trevor G Quayle" <Tin### [at] hotmailcom> schrieb im Newsbeitrag
news:447bd2ba$1@news.povray.org...
>
> "Sven Littkowski" <sve### [at] jamaica-focuscom> wrote in message
> news:447b250a@news.povray.org...
>> Planet Earth, latest version. Atmosphere, 3D clouds, 3D continents,
>> lights. Question: how to limit lights to only the nightside? Sven
>>
>
> Try playing with this and adapt it to your needs. It basically uses the
> object pattern with a plane oriented to the direction of the sun. Inside
> the plane (away from the sun) the Earth light image map is used, outside
> the
> plane (toward the sun) the texture is transparent.
>
> //start
> global_settings {
> assumed_gamma 1
> max_trace_level 10 }
>
> camera{
> up y
> right x*image_width/image_height
> angle 60
> location <30,30,30>
> look_at 0
> }
>
> #local SunLoc= <-500,0,100>; //Sun location
>
> light_source { SunLoc rgb 1 } //Sun
>
> sphere{0 9.9999 //planet below
> pigment {rgb <0,0,1>}
> finish {ambient 0 diffuse 1}
> }
>
> #local Lights=
> texture{
> pigment {image_map {png "Earth_Lights.png" interpolate 4 map_type 1}}
> finish {ambient 4 diffuse 0}
> }
>
>
> #local NoLights=
> texture{
> pigment {rgbt 1}
> finish {ambient 1 diffuse 0}
> }
>
>
> #local OBJ=plane {SunLoc 0}
>
> sphere{0 10
> texture {
> object{
> OBJ
> texture{NoLights}
> texture{Lights}
> }
> }
> }
> //end
>
> -tgq
>
>
>
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"Trevor G Quayle" <Tin### [at] hotmailcom> wrote:
Sorry, loks like this gotposted twice. Odd it only showed up once on my
home machine...
-tgq
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Sven Littkowski wrote:
> The reason for that relatively large file size is simply that I wanted to
> check the details exactly, especially the atmosphere. Smaller render sizes
> would make it quite difficult to see the atmosphere at the horizon.
It's probably better to post images that everyone can view on one
screen, ie 1024x768 or less (others might suggest different resolutions).
If you need to show more detail, than a "detail" image would work well -
I mean, a regular sized image (again, 1024x768 or less) but zoomed in to
on the spot you want to focus on (you can accomplish this in POV-Ray by
modifying the "look_at" vector and "angle" value in the camera statement).
...Chambers
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Ehh, err, well... Yes, yes. Okay...
"Trevor G Quayle" <Tin### [at] hotmailcom> schrieb im Newsbeitrag
news:web.447c35c81f1312436c4803960@news.povray.org...
> Sorry, loks like this gotposted twice. Odd it only showed up once on my
> home machine...
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Earth v2.0
A number of improvements I did:
1
the thickness of the atmosphere was reduced by 33% in order to reflect the
real height in relation to the planet
2
the color of the atmosphere is lighter now
3
It is now August on Earth, the winter has gone
4
The clusters of the lights big cities are creating, is now more decent and
not anymore visible at the dayside
5
I am using now the wonderful universe sky map which was created by Nekar
Xenos
I am publishing here four different scenes. If you want me to post the
entire image (JPEG, reduced quality, ca. 650 KB, 6400x4800 pixels) let me
know.
Scenes (introduced by image file names):
a
Northpole - see the atmosphere reflecting the end of a day and getting night
b
City Lights - descent, not individually visible but just increasing the
over-all color of that location
c
Atmosphere - visible at the horizon
d
Clouds - wonderfully three-dimensional and casting their own shades
Greetings,
Sven
Post a reply to this message
Attachments:
Download 'Planet 01 Small a.jpg' (13 KB)
Download 'Planet 01 Small b.jpg' (15 KB)
Download 'Planet 01 Small c.jpg' (26 KB)
Download 'Planet 01 Small d.jpg' (20 KB)
Preview of image 'Planet 01 Small a.jpg'
Preview of image 'Planet 01 Small b.jpg'
Preview of image 'Planet 01 Small c.jpg'
Preview of image 'Planet 01 Small d.jpg'
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"Kenneth" <kdw### [at] earthlinknet> schrieb im Newsbeitrag
news:web.435ea63a164da8b1546e79e70@news.povray.org...
> The year 2015, eh? Lets' see... 10 years ago, CGI was JUST starting to
> make
> a splash in Hollywood, in a rather crude way (comparitively speaking). I
> know, because I was there, working as a mechanical special effects
> designer...and wondering what all the fuss was about!
>
> Now here we are in 2005, with kids' video games that would have been
> considered "science fiction" a decade ago...running at speeds that SURELY
> can't get any faster. (Or__can__they???)
Well,
in 2015, when finally POV-Ray v4.0 comes out, the Chinese will be one of the
economical and military super powers, the USA will still be a super power
but in the procedure of decrading due inner unrests, social problems, racism
and reduced human rights.
The Chinese will waste and intoxinate the environment simply because it is
the cheapest way to be an economical super power, and their strong
government still will act as regime which destroys all critical comments.
The Chinese territory will have expanded (some little nice invasions to
"help" other countries and forced
political decisions in neighboring countries), and both super powers will
actually use environmental pollution in order to cause financial damage to
the opponent powers, due the creating of storm floods, general drought
destroying harvests, hunger killing dozen millions of Africans and Asians,
and cold waves in Europe due the halted gulf stream.
2025, when POV-Ray v5.0 comes out (developed by glorious Chinese programmers
who claim correctly POV-Ray to always have been a native Chinese invention
just copied without Chinese permission by other nations which should be
punished with the dead of those foreigners), the
Earth will see an entirely changed society: living became costly as
maintaining the formerly high standards is now fairly expensive due the
widely destroyed and/or changed environments. Lesser and lesser countries
can maintain a society as we know today. Widespread unemployment, hunger,
social problems, all sorts
of crime (especially thiefery and kills), fanatism and poorness are now seen
nearly everywhere. Cultural life is in the vast decrease because of strong
risen costs of maintenance of museums and other locations. Education on a
today level is denser, as most labour families just cannot spend the risen
educational money anymore. Small elites are ruling with iron fists.
2035, when POV-Ray v5.5 comes out, the general development in most fields
will be much slower than today. The economical war between the weaker USA,
the weak European Union and the still relatively strong China (which had
re-claimed back "it's own" territories in Africa, Asia and South-East
Europe), has been finished after some stronger weapons came to use. The
Saudi-Arabian and Kuwaitian moon and Mars bases still exist and accomodate
the last rich Arabian families, fed by the richdoms once achieved in
earlier, better times when oils was still flooding. Earth, however, is
dirty, the planet is tired. Wide lands are now waste lands, empty of most
vegetation and partially heavily polluted.
2045, when POV-Ray v5.75 comes out, the variety of land-based fauna has
vanished, only about one thirtieth part (1/30) of today may still exist.
Many food chains are broken, which causes again many more life forms to face
extinction. To survive here, a human needs to be iron-minded, intollerant to
any
other human, very cautious and very egotistic, and armed. There are still
smaller
communities, but the large cities of the past have halted to function and
exist only as empty towns with only small amounts of persons, probably
organized in gangs, living inside. Ruins in the towns become more and more
usual. The small communities with their villages still maintain a hard but
possible life. The big countries still exist, but more on paper than in the
minds of the citizens which are now organized, also in their minds, in
gangs, clans and local communities.
2055, when POV-Ray v5.76 comes out, the live on Earth is a life without much
technologies. Most production facilities became a long time ago to expensive
to maintain, and the missing expertise for their maintenance is another huge
problem. Many persons now accept that the human race is doomed to die out
due their own stupidity. People are bitter about their ancestors who could
have done so much better if only they wanted and powerful leaders would not
have controlled the media so much for their own political or economical
reasons. Community life decreases, more and more of these generations live
now as single families somewhere out in the wilderness, or what remained of
that. Meanwhile, the human mis-use of their environment in earlier decades
has further reduced the planet's capacity to maintain life. Now the life in
the oceans decreases as they get enriched more and more with the chemical
poison carried from the continents into the waters.
2065, when POV-Ray v5.765 was supposed to come out, only a few millions of
humans are still alive on the entire planet. The forgotten bases on Moon and
Mars don't send anymore, trying to reach a few persons on Earth still able
at least to talk to them begging for healp against their increasing problems
on the bases.
The human population on Earth is now so dense that this alone is a reason
for further reduction of partners finding others. There were, years ago, the
last fights for the few remaining habitable locations on Earth, mostly in
higher-situated valleys between the mountains. Now the amount of persons is
so dense that no fights are anymore needed. Diseases, poisons and hunger
kill many of the last humans. Technology is now like magic of old, glorious
days and feared by many of the unknowing generations. The few who still know
about technology are widely seen as magicians, holy or unholy. But it is now
easier to hear about one of these rare persons than to see one of them in a
lifetime.
2075, when POV-Ray v5.765b was supposed to come out, only a few humans are
still alive. They don't think anymore about terms like "past" and "future"
and "could be", they just live in an harsh, inhabitable, extreme
environment. Their few plants and even fewer animals can exist only in
enbordered, covered and more or lesser hermetically protected wooden or
stony accomodations above but mostly beyond the ground. Those last humans
are farmers in a harsh, bad, nearly
lethal environment. Mobility has gone as moving awhile outside their little
weak housings is bearing modest health risks. Wide areas on Earth are dead.
planet
which's surface is widely hidden by poisened gray heavy and dark clouds.
Many storms occur. Heavy ultra-violet emissions flood Earth's surface. The
difference between temperature zones is extreme.
There is still some life in the deep sea, and in some climatically protected
valleys high in the mountains. The great ruin fields of the previous old
towns bear terrible things from the past: viruses, chemical waste of
destroyed storage facilites, and other dangerous things.
2115, when POV-Ray v10 comes out, not humans wrote its code but intelligent
extraterrestrians who came too late to Earth to help the last humans and to
re-arrange life on Earth with their simple technologies or re-newable
energies, and who happily adapt the great code of the
greatest render program of all times for their own purposes. They added the
capacity to POV-Ray, to not only generate images but to create
three-dimensional real objects out of the ancient scenes the lost humanity
was
creating in their last glorious days, and place most of these 3D objects in
large museums which are built on Earth and on other locations of the human
solar system as last memorial about the great innovativity and ingeniousity
of the vanished human race and as warning
for other races maybe entering one day this little, absolutely unimportant
corner of a side arm of this little, boring galaxy in this corner of the
universe full of truly intelligent races.
In oppostion to most intelligent life in the universe, humans forgot one
little and nearly unimportant smalld etail: not only technical knowledge
matters, but the philosophy how to go through life, what to do if it can be
done, and what better not to do even if it can be done. The greatest race
of all times showed their greatness: their ability to life a greatly wrong
life...
Sven Littkowski
PS:
1
Years might, for sure, not be exact.
2
Comments or own additions are welcome.
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