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