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On Mon, 14 Aug 2000 11:14:50 -0500, Bob Hughes wrote:
>"Gail Shaw" <gsh### [at] monotix coza> wrote in message
>news:39980caa@news.povray.org...
>|
>| Now that's nice. Tail looks a bit long relative to the size of the
>| earth. Maybe move the comet further from the earth.
>
>Thanks, but it's titled Near Earth Comet :-) As I understand it comets
>can be quite large objects overall.
>I think you and Christoph are right though, it needs some fading out as it
>goes toward the far end. It does at the very end, many times the length you
>can see here, but not in a good way. At the same time I need to get a
>curvature for the dust tail too. Somehow, someway.
If you put it far enough in the distance, and bring your other objects
closer, you could probably use the camera angle to bend the comet. This
may involve scaling the object much bigger than it already is, but you
already know that don't you.
You could use a stand in solid object for the test renders untill you
get it the way you want.
--
Cheers
Steve email mailto:ste### [at] zeroppsuklinuxnet
%HAV-A-NICEDAY Error not enough coffee 0 pps.
web http://www.zeropps.uklinux.net/
or http://start.at/zero-pps
5:17pm up 30 days, 15:43, 2 users, load average: 1.48, 1.16, 1.19
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"Steve" <ste### [at] zeroppsuklinuxnet> wrote in message
news:slr### [at] zero-ppslocaldomain...
|
| If you put it far enough in the distance, and bring your other objects
| closer, you could probably use the camera angle to bend the comet.
Interesting workaround. Problem is, I would know it's not actually curved
and that might bug me too much :-)
Bob
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Bob Hughes wrote:
> Interesting workaround. Problem is, I would know it's not actually curved
> and that might bug me too much :-)
I did the attached image a couple of years ago. It is nothing but a facade
with nothing behind the walls shown. I soon after accidentally deleted the
code for the scene. To this day it really bugs me that I can't go back and
finish the building so that it can be seen from any angle.
--
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/
Post a reply to this message
Attachments:
Download 'blckwall.jpg' (72 KB)
Preview of image 'blckwall.jpg'
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"Ken" <tyl### [at] pacbellnet> wrote in message
news:3998DC06.3A4B901A@pacbell.net...
|
| Bob Hughes wrote:
|
| > Interesting workaround. Problem is, I would know it's not actually
curved
| > and that might bug me too much :-)
|
| I did the attached image a couple of years ago. It is nothing but a facade
| with nothing behind the walls shown. I soon after accidentally deleted the
| code for the scene. To this day it really bugs me that I can't go back and
| finish the building so that it can be seen from any angle.
Yeah, that's not good to not have the pov script to go along with a image.
Unfinished is one thing... can't finish, a whole other matter.
Looks like you could start this over easily enough, just by following it
like a 3D blueprint.
I like castle type stuff.
Bob
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"David Fontaine" <dav### [at] faricynet> wrote in message
news:39982C4B.44338637@faricy.net...
| Looks better, but shouldn't the tail fade out in back?
More like this one. I know it's a tiny image, just still ferreting this
thing out.
Post a reply to this message
Attachments:
Download 'nearearthcomet3.jpg' (6 KB)
Preview of image 'nearearthcomet3.jpg'
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Ken wrote:
> I did the attached image a couple of years ago. It is nothing but a facade
> with nothing behind the walls shown. I soon after accidentally deleted the
> code for the scene. To this day it really bugs me that I can't go back and
> finish the building so that it can be seen from any angle.
You'll never stop kicking yourself...
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
Please visit my website: http://www.faricy.net/~davidf/
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On Tue, 15 Aug 2000 01:14:44 -0500 "Bob Hughes"
<per### [at] aolcom?subject=PoV-News:> wrote:
>More like this one. I know it's a tiny image, just still ferreting this
>thing out.
Ooh, that's nice, Bob. I like the angle of the comet's path in
relation to the sun, too.
--
Alan - ako### [at] povrayorg - a k o n g <at> p o v r a y <dot> o r g
http://www.povray.org - Home of the Persistence of Vision Ray Tracer
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Anton Sherwood wrote:
> I haven't seen swirls like that in a comet's tail.
Oops: http://antwrp.gsfc.nasa.gov/apod/ap960319.html
--
Anton Sherwood -- br0### [at] p0b0xcom -- http://ogre.nu/
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From: Bob Hughes
Subject: Re: Near Earth comet try (fail?) [~45KB Jpg]
Date: 23 Aug 2000 15:16:31
Message: <39a4230f@news.povray.org>
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"Anton Sherwood" <bro### [at] poboxcom> wrote in message
news:39A33B74.7E76CB93@pobox.com...
| Anton Sherwood wrote:
| > I haven't seen swirls like that in a comet's tail.
|
| Oops: http://antwrp.gsfc.nasa.gov/apod/ap960319.html
Yeah, I had seen that one after your first reply when looking for comet
pictures to see how I was doing with my ray traced one. Surprisingly, most
pictures I found were black and white and not too great.
Hey, you want to see a fantastic photograph of a comet though?
http://comets.amsmeteors.org/comets/lcomets/1995o1.html
Spectacular image of Hale-Bopp. I just now found it. I was thinking before
that only the dust tail could appear to swirl about from changes in the
ejection of material from the nucleus as it rotated to show a different side
to the sun. Thought the ion tails of comets were generally straight and
featureless. Boy was I wrong.
I'll probably try to mimic this Hale-Bopp photo most of all, it's so
visually appealing. Just need to get a idea of what's in that saturated
white area the time exposure cleared out. I saw Hale-Bopp through a small
4" scope so I guess it wasn't clumpy but did have some directional features
in the coma area. I looked at some of those Halley space probe pictures
recently too; very fuzzy stuff. Maybe I'll just see what happens.
Bob
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Bob Hughes wrote:
> Hey, you want to see a fantastic photograph of a comet though?
> http://comets.amsmeteors.org/comets/lcomets/1995o1.html
Splendid pictures of a splendid comet.
I remember my last sight of it: casually looking up one evening in San
Francisco, well after maximum. Perhaps it was self-delusion but I still
saw a hint of the double tail.
Hm, and I don't remember the total eclipse of ~1979 (for which I
travelled from Illinois to Winnipeg) at all.
--
Anton Sherwood -- br0### [at] p0b0xcom -- http://ogre.nu/
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