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The first installment in a new project I'm working on. This is actually a
scale model I did for concept purposes, the scale is way too small for the
purposes of my concept tho. (1 unit = 100000 miles)
I'll be trying to scale it up a little at a time.
One problem though, is that I used a sphere with a pair of scattering medias
to create the general luminosity pattern, then overlaid a universal media
to give it color. The effect, while quite striking, renders the starfield
in the background completely invisible. (And yes, I do realize that at that
proximity to the sun, you probably wouldn't be able to see the stars
anyway, but It may interfere with other media effects in the scene later.)
I'll post the source in P.B.S.F. if anybody want's to play around with it.
I'd appreciate any suggestions or comments.
A.D.B.
------
If this little world tonight / suddenly should fall through space
in a hissing, headlong flight / shrivelling from off its face
as it falls into the sun, / in an instant every trace
of the little crawling things / ants, philosophers, and lice,
cattle, roaches, and kings, / beggars, millionares, and mice,
men and maggots all as one / as it falls into the sun...
Who can say but at the same instant / from some planet far
a child may watch us and exclaim / "See the pretty shooting star!"
Post a reply to this message
Attachments:
Download 'suncatcher1.jpg' (208 KB)
Preview of image 'suncatcher1.jpg'
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I assume you're looking to do something like this (photo)?
http://astrogeology.usgs.gov/assets/wallpaper/sun.jpg
http://antwrp.gsfc.nasa.gov/apod/ap990923.html
Think solar corona. Think diffuse transparent media.
Cheers.
DLM
"Anthony D. Baye" <Sha### [at] spamnomore hotmailcom> wrote in message
news:web.427c55ce20ef07c98a85f6810@news.povray.org...
> The first installment in a new project I'm working on. This is actually a
> scale model I did for concept purposes, the scale is way too small for the
> purposes of my concept tho. (1 unit = 100000 miles)
>
> I'll be trying to scale it up a little at a time.
>
> One problem though, is that I used a sphere with a pair of scattering
> medias
> to create the general luminosity pattern, then overlaid a universal media
> to give it color. The effect, while quite striking, renders the starfield
> in the background completely invisible. (And yes, I do realize that at
> that
> proximity to the sun, you probably wouldn't be able to see the stars
> anyway, but It may interfere with other media effects in the scene later.)
>
> I'll post the source in P.B.S.F. if anybody want's to play around with it.
> I'd appreciate any suggestions or comments.
>
> A.D.B.
>
> ------
> If this little world tonight / suddenly should fall through space
> in a hissing, headlong flight / shrivelling from off its face
> as it falls into the sun, / in an instant every trace
> of the little crawling things / ants, philosophers, and lice,
> cattle, roaches, and kings, / beggars, millionares, and mice,
> men and maggots all as one / as it falls into the sun...
> Who can say but at the same instant / from some planet far
> a child may watch us and exclaim / "See the pretty shooting star!"
>
>
>
>
>
--------------------------------------------------------------------------------
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Anthony D. Baye nous apporta ses lumieres en ce 2005-05-07 07:50:
> The first installment in a new project I'm working on. This is actually a
> scale model I did for concept purposes, the scale is way too small for the
> purposes of my concept tho. (1 unit = 100000 miles)
>
> I'll be trying to scale it up a little at a time.
>
> One problem though, is that I used a sphere with a pair of scattering medias
> to create the general luminosity pattern, then overlaid a universal media
> to give it color. The effect, while quite striking, renders the starfield
> in the background completely invisible. (And yes, I do realize that at that
> proximity to the sun, you probably wouldn't be able to see the stars
> anyway, but It may interfere with other media effects in the scene later.)
>
> I'll post the source in P.B.S.F. if anybody want's to play around with it.
> I'd appreciate any suggestions or comments.
>
> A.D.B.
>
> ------
> If this little world tonight / suddenly should fall through space
> in a hissing, headlong flight / shrivelling from off its face
> as it falls into the sun, / in an instant every trace
> of the little crawling things / ants, philosophers, and lice,
> cattle, roaches, and kings, / beggars, millionares, and mice,
> men and maggots all as one / as it falls into the sun...
> Who can say but at the same instant / from some planet far
> a child may watch us and exclaim / "See the pretty shooting star!"
>
>
>
>
>
>
> ------------------------------------------------------------------------
>
Contain the "universal media" in another sphere and give it a spherical density
apropriately scaled.
This will also make the render aster and may enable some stars to show. You may also
enlarge your
actual sphere a bit, the media ends abruptly while it should fade to nothingness.
For the stars, you may want to increase ther brightness. Try increasing the values
used in the
pigment used (just add a value to multiply the colour vector like rgb<1,0.7,1>*3)
Alain
Post a reply to this message
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> >
> Contain the "universal media" in another sphere and give it a spherical density
apropriately scaled.
> This will also make the render aster and may enable some stars to show. You may also
enlarge your
> actual sphere a bit, the media ends abruptly while it should fade to nothingness.
> For the stars, you may want to increase ther brightness. Try increasing the values
used in the
> pigment used (just add a value to multiply the colour vector like rgb<1,0.7,1>*3)
>
> Alain
Tried containing it in it's own sphere, either the colors get whited out or
they invert. Changing the size of the sphere doesn't seem to help in the
least, and I haven't been able to get results nearly as satisfactory as in
the attatched image with density maps. (I tried a spherical mapping and
average.)
I'll be experimenting more with the media layout, I have had some good
results with using a black hole warp to modify the corona density. In the
meantime, the source is in p.b.s-f for anyone who wants to experiment with
it. (see Project Suncatcher)
If you do have any results, please keep me posted.
A.D.B
Post a reply to this message
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Anthony D. Baye wrote:
> I'll post the source in P.B.S.F. if anybody want's to play around with it.
> I'd appreciate any suggestions or comments.
>
Well, I played around with it and this is what I got. I converted the
media to textures and spared the media for the corona. The textures
don't look as good as your media, but I think with some work they can
look pretty convincing.
You probably have to inverse the plane to make the stars visible. I like
to use a sky sphere for starfields etc.; less trouble and stars
everywhere where ever you point your camera.
Post a reply to this message
Attachments:
Download 'sun.jpg' (132 KB)
Preview of image 'sun.jpg'
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emkaah <emkaah@yahoodotcom> wrote:
> Anthony D. Baye wrote:
> > I'll post the source in P.B.S.F. if anybody want's to play around with it.
> > I'd appreciate any suggestions or comments.
> >
>
> Well, I played around with it and this is what I got. I converted the
> media to textures and spared the media for the corona. The textures
> don't look as good as your media, but I think with some work they can
> look pretty convincing.
>
> You probably have to inverse the plane to make the stars visible. I like
> to use a sky sphere for starfields etc.; less trouble and stars
> everywhere where ever you point your camera.
That's Damn good.
The only problem will be making it look good up close, but with some
tweaking on the corona that shouldn't be much of a problem. (I say up close
because, obviously, Suncatcher will be in solar orbit.)
The only reason I didn't use the sky spere was because the stock starfield
in textures.inc is, well, a texture. I just hadn't gotten around to
creating my own yet.
Thanx for the help.
ADB
Post a reply to this message
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