At my office I have the possibility to print H U G E colour posters. I
tried to print the BIG_E (Star Trek Enterprise) on this printer but was
dissappointed by the quality of the background planet. I improved it
myself but I didn't get it perfect.

Questions:
- Are there any examples of POV-Planets on internet?
- How can I make a texture (layer) to simulate ice-caps on the poles of
a planet? The lower layers contain textures for sea and earth. This
means that the ice-cap layer must be transparent (except of course at
the poles).
- My cloud layers ( I use two) are to simple. Can I define dents or
wrinkels in my cloud layers? I noticed from TV documentaries about space
shuttle missions that the earth clouds are clearly 3 dimensional while
all cloed textures that I found are two dimensional (wrapped around a
sphere).
- I can't get a nice star-background. The included textures are clearly
(if printed on this BIG printer) not realistic. How can I get a
realistic cosmic background?

I suppose all this is possible, but its to difficult for me.
If there is interrest I am willing to upload the POV file, but credit
should go to the real designer of BIG_E. This file was on the first
official POVRAY CD.

Please answer by e-mail since I am not a frequent visitor of this news
server.

Post a reply to this message

> - I can't get a nice star-background. The included textures are clearly
> (if printed on this BIG printer) not realistic. How can I get a
> realistic cosmic background?

Try the galaxy include file, it makes very good galaxies. You can get it
at http://twysted.net/include/

---------------------------------------------------
visit my homepage:
 http://www.geocities.com/SiliconValley/Pines/7992/
the POVRay Objects Collection:
 http://twysted.net/povobjects/
---------------------------------------------------

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To achieve realy three dimensional clouds, you have to play around with
medias, which i am not very good at,  but you can try it maybe with
relatively high density Values on the outside of the media sphere, and when
you make the planet sphere small enough, it could look like you wan't to.
Maybe anyone else knows exactly which density Values to use to achieve the
right look !

greetings by Lars Wolter
www.snafu.de/~lars.wolter
E-Mail : lar### [at] snafude


A. Jans-Beken schrieb in Nachricht <366### [at] wxsnl>...
>At my office I have the possibility to print H U G E colour posters. I
>tried to print the BIG_E (Star Trek Enterprise) on this printer but was
>dissappointed by the quality of the background planet. I improved it
>myself but I didn't get it perfect.
>
>Questions:
>- Are there any examples of POV-Planets on internet?
>- How can I make a texture (layer) to simulate ice-caps on the poles of
>a planet? The lower layers contain textures for sea and earth. This
>means that the ice-cap layer must be transparent (except of course at
>the poles).
>- My cloud layers ( I use two) are to simple. Can I define dents or
>wrinkels in my cloud layers? I noticed from TV documentaries about space
>shuttle missions that the earth clouds are clearly 3 dimensional while
>all cloed textures that I found are two dimensional (wrapped around a
>sphere).
>- I can't get a nice star-background. The included textures are clearly
>(if printed on this BIG printer) not realistic. How can I get a
>realistic cosmic background?
>
>I suppose all this is possible, but its to difficult for me.
>If there is interrest I am willing to upload the POV file, but credit
>should go to the real designer of BIG_E. This file was on the first
>official POVRAY CD.
>
>Please answer by e-mail since I am not a frequent visitor of this news
>server.
>

Post a reply to this message

A. Jans-Beken wrote:
> 
> At my office I have the possibility to print H U G E colour posters. I
> tried to print the BIG_E (Star Trek Enterprise) on this printer but was
> dissappointed by the quality of the background planet. I improved it
> myself but I didn't get it perfect.
> 
> Questions:
> - Are there any examples of POV-Planets on internet?

You might like to have a look at my home page (see below). There are
several POV-Ray planets there, with clouds and ice caps (and source
code).

-- 
Ross Smith ....................................... Auckland, New Zealand
<mailto:r-s### [at] ihugconz> ........ <http://crash.ihug.co.nz/~r-smith/>
    "Oh boy! Violence! Can't wait! Hey, sex is everywhere, but good
    violence is hard to find!"                  -- Michael Thompson

Post a reply to this message

Check out the link below for a nasa site that also has some very large mars
files 10mb+ for the harddrive unimparied, won't help with the clouds though

http://maps.jpl.nasa.gov/

"A. Jans-Beken" wrote:

> At my office I have the possibility to print H U G E colour posters. I
> tried to print the BIG_E (Star Trek Enterprise) on this printer but was
> dissappointed by the quality of the background planet. I improved it
> myself but I didn't get it perfect.
>
> Questions:
> - Are there any examples of POV-Planets on internet?
> - How can I make a texture (layer) to simulate ice-caps on the poles of
> a planet? The lower layers contain textures for sea and earth. This
> means that the ice-cap layer must be transparent (except of course at
> the poles).
> - My cloud layers ( I use two) are to simple. Can I define dents or
> wrinkels in my cloud layers? I noticed from TV documentaries about space
> shuttle missions that the earth clouds are clearly 3 dimensional while
> all cloed textures that I found are two dimensional (wrapped around a
> sphere).
> - I can't get a nice star-background. The included textures are clearly
> (if printed on this BIG printer) not realistic. How can I get a
> realistic cosmic background?
>
> I suppose all this is possible, but its to difficult for me.
> If there is interrest I am willing to upload the POV file, but credit
> should go to the real designer of BIG_E. This file was on the first
> official POVRAY CD.
>
> Please answer by e-mail since I am not a frequent visitor of this news
> server.

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

James P Crombie
Summerside PEI Canada

http://www3.pei.sympatico.ca/jpcrombie/            My Astronomy stuff
http://www3.pei.sympatico.ca/jpcrombie/RHINOFILES/ RhinoCad 3D Stuff

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

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For a preview of other POV based rendering with this NASA
data, check out:

http://www.imp.org/members/scene/test_a/scripta.html

There is also a more convenient packaging and
previews, etc..  The entire collection is 14MB as
compressed PNG at "reasonable" resolution.

Clouds, rings, and other things are "under development"...


>Check out the link below for a nasa site that also has some very large mars
>files 10mb+ for the harddrive unimparied, won't help with the clouds though
>
>http://maps.jpl.nasa.gov/

Post a reply to this message