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Marc Champagne wrote:
>
> I'm feeling pretty damned proud of how these have turned out !
It's a little on the dark side. <teehee>
P.S. I really would like to see the source for these if at all possible.
--
Ken Tyler
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In article <Xns### [at] 204 213191226>,
Marc Champagne <nos### [at] pleasecom> wrote:
> I'm feeling pretty damned proud of how these have turned out !
>
> These are quick renders without AA
Very nice...
The top one seems to have very distinct bands of colors, maybe
increasing the dispersion samples would help. The second one could use a
little higher number of photons/lower spacing, but both are simple and
beautiful. (of course, I've always been fascinated with optics)
BTW, what is the MIKA in your message subjects for?
--
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/
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Ken <tyl### [at] pacbellnet> wrote in news:3D98FC7B.9FA07FB1@pacbell.net:
> It's a little on the dark side. <teehee>
Shoot, took me a half a minute before that remark hit base :))
> P.S. I really would like to see the source for these if at all
> possible.
I will post the code tomorrow night (let's say 24 hours from now)
All I can say for now is that there is no trickery of any kind, simply a
light source, a prism, and a surface under the prism.
I saw someone else's prism (The Ultimate Prism) but I was deceived by
it's author's code which used some trickery to get the effect he was
looking for I guess.
--
(MIKA) Marc Champagne
marcch.AT.videotron.DOT.ca
Montreal, CANADA
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Christopher James Huff <chr### [at] maccom> wrote in
news:chr### [at] netplexaussieorg:
> Very nice...
Thanks
> The top one seems to have very distinct bands of colors, maybe
> increasing the dispersion samples would help. The second one could use
> a little higher number of photons/lower spacing, but both are simple
> and beautiful. (of course, I've always been fascinated with optics)
Believe me i've been fooling with the scene now for days, I will
consider your observations...
> BTW, what is the MIKA in your message subjects for?
Just a tag to help me find which messages/treads I have started.
--
(MIKA) Marc Champagne
marcch.AT.videotron.DOT.ca
Montreal, CANADA
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Marc Champagne wrote:
> > P.S. I really would like to see the source for these if at all
> > possible.
>
> I will post the code tomorrow night (let's say 24 hours from now)
Appreciate it.
--
Ken Tyler
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From: Timothy R Cook
Subject: Re: MIKA Pink Floyd's next album cover? - 2 attachments
Date: 30 Sep 2002 22:22:28
Message: <3d9906e4$1@news.povray.org>
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Marc Champagne wrote:
> I'm feeling pretty damned proud of how these have turned out !
'bout darn time someone got around to doing this...
--
Tim Cook
http://empyrean.scifi-fantasy.com
mirror: http://personal.lig.bellsouth.net/lig/z/9/z993126
-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------
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"Timothy R. Cook" <tim### [at] scifi-fantasycom> wrote in
news:3d9906e4$1@news.povray.org:
> 'bout darn time someone got around to doing this...
It appears other have tried, I was not pleased woth them.
--
(MIKA) Marc Champagne
marcch.AT.videotron.DOT.ca
Montreal, CANADA
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From: Andrew Coppin
Subject: Re: MIKA Pink Floyd's next album cover? - 2 attachments
Date: 1 Oct 2002 05:18:45
Message: <3d996875@news.povray.org>
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>#declare PinkFloyd_DarkSideOfTheMoon_AlbumCover = no;
pmsl... I love it!!!
Nice image btw... I tried and failed to do this one myself. :-(
Anrew.
PS. Was the original album cover a photograph or airbrush job? I can't
decide by looking at it...
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"Andrew Coppin" <orp### [at] btinternetcom> wrote in
news:3d996875@news.povray.org:
> PS. Was the original album cover a photograph or airbrush job? I can't
> decide by looking at it...
It doesn't look real to me, looks like art work (drawing ot other)
--
(MIKA) Marc Champagne
marcch.AT.videotron.DOT.ca
Montreal, CANADA
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On Mon, 30 Sep 2002 21:52:23 -0400,
Christopher James Huff <chr### [at] maccom> wrote:
> In article <Xns### [at] 204213191226>,
> Marc Champagne <nos### [at] pleasecom> wrote:
>
>> I'm feeling pretty damned proud of how these have turned out !
>>
>> These are quick renders without AA
>
> Very nice...
> The top one seems to have very distinct bands of colors, maybe
> increasing the dispersion samples would help. The second one could use a
> little higher number of photons/lower spacing, but both are simple and
I used the same photon count as in the original .pov (10000000)
and dispersion_samples (30) ...
how noticeable are the 'jerky' edges on that image in your opinion --
in the middle, around the white beam and between 'the rainbow colors'?
I think they're due to the PRNG used in Povray 3.5, OR,
due to the fact that FRAND can return only(?) 32768 different values.
whichever the reason, if someone could sacrifice a minute in looking
and comparing these two pictures...
http://iki.fi/safari/prng/pink_1280_orig.jpg
http://iki.fi/safari/prng/pink_1280_sha1.jpg
(also .png's, 1.5 MB each)
mirror in case of trouble
http://kotisivu.mtv3.fi/sami.farin/pink_1280_orig.jpg
http://kotisivu.mtv3.fi/sami.farin/pink_1280_sha1.jpg
(NO .png)
...and tell me what causes those 'jerky' edges?
oh, those _sha1.* files are made with a little patch to
Povray 3.5, which uses SHA-1 as the PRNG:
http://iki.fi/safari/prng/povray-3.5-sha1-prng-and-stuff.diff.txt
that patch has also GSL patch (which probably nobody wants)
and some misc bug fixes I found on the 'net.
only SHA-1 part of it:
http://iki.fi/safari/prng/povray-3.5-sha1-prng.diff.txt
BTW, one call to get a new pseudo-random number takes about 180
cycles on a Celeron.
I didn't optimize for speed any places of this SHA-1 usage,
like cells_pattern().
why are there calls to rand() in some places?
> beautiful. (of course, I've always been fascinated with optics)
too bad I ran almost out of mem with those settings..
> BTW, what is the MIKA in your message subjects for?
--
Safari - y7p### [at] sneakemailcomgovinvalid
"Talk is cheap. Show me the code." - Linus Torvalds
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