Both of your WIPs are great.
I've been thinking a bit about having a go
at Rama.. But, I need to read it again
before that.
Both these posts inspired me to
get in gear :)

"Thomas de Groot" <t.d### [at] internlnet> skrev i meddelandet 
news:4360cd4a@news.povray.org...
>
> "Bill Pragnell" <bil### [at] hotmailcom> schreef in bericht
> news:web.4360929f30852916731f01d10@news.povray.org...
>> Just in case any of you were getting bored of ringworlds...
>>
>> This is a substantial improvement on my previous effort. The ring is
> pretty
>> much the dimensions stated in the book (and elsewhere here) - 90 million
>> miles in radius (although it should be 95 I believe), with 20 shadow
>> squares orbiting 12 million miles from the sun. The sun is an area_light 
>> 1
>> million miles in diameter.
>>
>> The atmospheric effects are of course the most difficult, and in this
> regard
>> I cheated somewhat - the haze is merely a ground fog, and the blue sky is
> a
>> semitransparent sky sphere about a million miles wide, i.e. between the
>> camera and the arch.
>>
>> I think the landscape is of realistic dimensions, but sadly the clouds 
>> are
>> slightly exaggerated - they are 200 miles in the air, with the camera at
> an
>> altitude of 100 miles. The reason for this is that I couldn't place the
>> camera any lower without some kind of precision artifact creeping into 
>> the
>> lower half of the image (I'll post an example in a bit).
>>
> Excellent images, both of them! The atmosphere is much better than in my 
> own
> experiments. I am afraid that we have to cheat a bit to get it really 
> right.
> In truth, because of the dimensions, the whole *foreground* is a landscape
> in itself, almost separate from the background arch.
>
> Thomas
>
>
>

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