Here's a cgsphere entry I'm finally happy with. Before submitting it I
thought I'd post it here to see what people thought of it... In the end I
left the monolith out, a) because it was really difficult getting it to
look good, and b) because it didn't really fit with the conjunction of
spheres that this image produces.

Anyway, comments welcome, indeed positively invited.

Bill

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Attachments:
Download 'iosphere.png' (335 KB)

Preview of image 'iosphere.png'

"Bill Pragnell" <bil### [at] hotmailcom> wrote:
> Here's a cgsphere entry I'm finally happy with. Before submitting it I
> thought I'd post it here to see what people thought of it... In the end I
> left the monolith out, a) because it was really difficult getting it to
> look good, and b) because it didn't really fit with the conjunction of
> spheres that this image produces.
>
> Anyway, comments welcome, indeed positively invited.
>
> Bill

Nice one Bill!

Good modelling on the ship. Io's atmosphere is fine. Good idea of aligning
Jupiter, Io and the ship.

If I could dare some humble comments:

    . Jupiter radiates light (self albedo) and the surface in the shadow
should be more visible.
    . I would remove Jupiter's atmosphere (perhaps that would be a mistake
....) and increase a bit the contrast of the surface.
    . Like you, I don't see how the monolith could take place.

   Bruno

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Great image, Bill!
One thing missing (but don't do it now!): a volcanic plume on Io limb.....

Thomas

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"Bill Pragnell" <bil### [at] hotmailcom> wrote:
> Here's a cgsphere entry I'm finally happy with. Before submitting it I
> thought I'd post it here to see what people thought of it... In the end I
> left the monolith out, a) because it was really difficult getting it to
> look good, and b) because it didn't really fit with the conjunction of
> spheres that this image produces.
>
> Anyway, comments welcome, indeed positively invited.
>
> Bill

This is very attractive and I hope that it gets lots of votes.

Stephen

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High!

Bill Pragnell wrote:
> Here's a cgsphere entry I'm finally happy with. Before submitting it I
> thought I'd post it here to see what people thought of it... In the end I
> left the monolith out, a) because it was really difficult getting it to
> look good, and b) because it didn't really fit with the conjunction of
> spheres that this image produces.
> 
> Anyway, comments welcome, indeed positively invited.

I don't think that Io has any atmosphere dense enough to be visible from 
outer space! On http://www.solarviews.org/eng/iomountain.htm I found this:

"In spite of the large volume of gas released through volcanic activity, 
Io's atmosphere is extremely thin, less than one millionth as dense as 
Earth's atmosphere. Most of the volcanic gas condenses back to the 
surface in the form of frost."

See you on www.khyberspace.de !

Yadgar

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Thanks for the comments fellas.

Bruno:
>     . Jupiter radiates light (self albedo) and the surface in the shadow
> should be more visible.
I didn't know that, but it makes sense. A small ambient value should take
care of that.

>     . I would remove Jupiter's atmosphere (perhaps that would be a mistake
> ....) and increase a bit the contrast of the surface.
I tried Jupiter without the atmosphere but it didn't look right next to
Io's. I think both bodies should be the same; either with or without
atmosphere. I agree about the contrast on Jupiter's surface, too. Easily
corrected...

Thomas:
> One thing missing (but don't do it now!): a volcanic plume on Io limb.....
Er, yes. Good idea, but a project in itself!

Yadgar:
> I don't think that Io has any atmosphere dense enough to be visible from
> outer space! On http://www.solarviews.org/eng/iomountain.htm I found this:
Yes, too true. I didn't think Io had any sort of atmosphere, and Jupiter's
certainly doesn't look like that. I wanted them to look slightly
'Hollywood-y', like film effects. I might try them both without atmosphere
for comparison...

Bill

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"Bill Pragnell" <bil### [at] hotmailcom> wrote in message 
news:web.45f675eda641c151731f01d10@news.povray.org...
> Thanks for the comments fellas.
>
> Bruno:
>>     . Jupiter radiates light (self albedo) and the surface in the shadow
>> should be more visible.
> I didn't know that, but it makes sense. A small ambient value should take
> care of that.

Jupiter only emits in the InfraRed, not the visible spectrum... I wouldn't 
add any ambient.

>>     . I would remove Jupiter's atmosphere (perhaps that would be a 
>> mistake
>> ....) and increase a bit the contrast of the surface.
> I tried Jupiter without the atmosphere but it didn't look right next to
> Io's. I think both bodies should be the same; either with or without
> atmosphere. I agree about the contrast on Jupiter's surface, too. Easily
> corrected...

I agree it would look strange (if accurate) to remove the atmosphere from 
Jupiter..  maybe you could tone it down a little to make it subtly different 
from Io

Rarius

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