 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"the world is flat!" exclaimed Louis Wu when he set foot on the Ringworld
for the first time. And indeed it is. This is a fast construction in Moray
of the Ringworld, exactly to scale, but without the Shadow Squares and
without atmosphere or landscaping. The Rim Walls are hardly visible in the
distance. During day light, the world and atmophere would seem flat, the
Arch of Heaven being hidden.
Thomas
Post a reply to this message
Attachments:
Download 'ringworld_02.jpg' (9 KB)
Preview of image 'ringworld_02.jpg'
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Thomas de Groot" <t.d### [at] inter nlnet> wrote:
> "the world is flat!" exclaimed Louis Wu when he set foot on the Ringworld
> for the first time. And indeed it is. This is a fast construction in Moray
> of the Ringworld, exactly to scale, but without the Shadow Squares and
> without atmosphere or landscaping. The Rim Walls are hardly visible in the
> distance. During day light, the world and atmophere would seem flat, the
> Arch of Heaven being hidden.
According to my calculations, the rim walls would have an angular size of
about 7 minutes of arc, viewed from the middle of the Ring. With atmosphere
and landscape, all but invisible.
I find it mildly annoying that, from its surface, the Ringworld would look
no more exciting than a flat earth! One would only get a true sense of
scale and spectacle from hundreds of miles in the air...
Bill (secretly building a Dyson sphere in his garden shed)
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
This is a version with clouds, but without atmospheric haze (that's more
difficult!!!).
Next: Shadow Squares.
Thomas
Post a reply to this message
Attachments:
Download 'ringworld_02_01.jpg' (48 KB)
Preview of image 'ringworld_02_01.jpg'
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Bill Pragnell" <bil### [at] hotmailcom> schreef in bericht
news:web.435e28311389c621731f01d10@news.povray.org...
>
> According to my calculations, the rim walls would have an angular size of
> about 7 minutes of arc, viewed from the middle of the Ring. With
atmosphere
> and landscape, all but invisible.
>
That's correct. In "Ringworld", the party is just able to see them because
they are on the (lower) slope of Fist of God, according to the map in
"Ringworld Engineers", about 60 miles above the big ocean.
> I find it mildly annoying that, from its surface, the Ringworld would look
> no more exciting than a flat earth! One would only get a true sense of
> scale and spectacle from hundreds of miles in the air...
>
It's an absolutely boring view! ;-)
However, at night, that would be gorgeous.
> Bill (secretly building a Dyson sphere in his garden shed)
>
Wow!!!
Thomas
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Thomas de Groot" <t.d### [at] internlnet> wrote:
> > Bill (secretly building a Dyson sphere in his garden shed)
> Wow!!!
It's a big shed.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
... and now with Shadow Squares.
The greenish clouds are an effect of radiosity.
Thomas
Post a reply to this message
Attachments:
Download 'ringworld_02.jpg' (50 KB)
Preview of image 'ringworld_02.jpg'
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Thomas de Groot" <t.d### [at] internlnet> wrote:
> ... and now with Shadow Squares.
> The greenish clouds are an effect of radiosity.
That's really good. I think it looks better than anything I managed. I might
have to dig out my code - we can have a Ring-off!
One point, however: to my mind, the shadowed areas of the arch should be the
same colour as the sky - just like the shadowed areas of the moon in our
sky during daylight. The lit areas of the ring would probably not cast that
much light - certainly less than the earthlight cast onto the moon.
Otherwise, keep 'em coming!
Bill
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Thomas de Groot nous apporta ses lumieres en ce 2005-10-26 08:24:
> ... and now with Shadow Squares.
> The greenish clouds are an effect of radiosity.
>
> Thomas
>
>
>
Needs an area_light. In all the ilustrations I saw, the shadows have soft edges.
--
Alain
-------------------------------------------------
Drive A: not responding.. .Formating C: instead
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Alain <ele### [at] netscapenet> wrote:
> Needs an area_light. In all the ilustrations I saw, the shadows have soft edges.
I have a feeling that soft terminators would not be visible on the arch to
the naked eye - too small. It's likely that Ringworld illustrations are
exaggerated for artistic effect.
I could be wrong - I *think* I used an area_light for my ringworld picture
(see previous thread) but I can't remember! :)
Bill
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Bill Pragnell nous apporta ses lumieres en ce 2005-10-26 12:26:
> Alain <ele### [at] netscapenet> wrote:
>
>>Needs an area_light. In all the ilustrations I saw, the shadows have soft edges.
>
> I have a feeling that soft terminators would not be visible on the arch to
> the naked eye - too small. It's likely that Ringworld illustrations are
> exaggerated for artistic effect.
>
> I could be wrong - I *think* I used an area_light for my ringworld picture
> (see previous thread) but I can't remember! :)
>
> Bill
>
In the images I saw, the shadowing squares are between 1/2 and 2/3 of the ring's
radius. With such
proportions, you have prety whide penumbraes.
--
Alain
-------------------------------------------------
To the world you may be one person, but to one
person you may be the world.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
