Where are the checks? :)

No fancy tricks here, but I still like it.

Comments, suggestions, etc. welcome.

Cheers,

Gergely

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Wow !

- Nice image.

This seems to be a shape that is quite similar to
the one I made in late January 2001: "Outside It"

http://news.povray.org/povray.binaries.images/13533/91167/
news://news.povray.org/3a7eed3a%40news.povray.org

I have always wanted to see such a shape rendered
in glass with a high enough max_trace_level and
photons, but I never had a powerful enough computer
to do it.

How long time did it take to render ?

And is this shape made with CSG ?
Or as a "blobbed" iso-surface ?


Tor Olav


Gergely Vandor wrote:
> 
> Where are the checks? :)
> 
> No fancy tricks here, but I still like it.
> 
> Comments, suggestions, etc. welcome.

Post a reply to this message

Great image, very beautiful.

Will you share the source?, I'm interested in the photon part.
Bye
--
Txemi Jendrix
tji### [at] euskalnetnet
http://www.geocities.com/txemijendrix

news:3c42297c@news.povray.org...
> Where are the checks? :)
>
> No fancy tricks here, but I still like it.
>
> Comments, suggestions, etc. welcome.
>
> Cheers,
>
> Gergely
>
>
>

Post a reply to this message

> Wow !
>
> - Nice image.

Thanks :)

>
> This seems to be a shape that is quite similar to
> the one I made in late January 2001: "Outside It"

Well, that one seems a bit more complex (and cooler) than mine to me. :)
>

> How long time did it take to render ?

The image you see took about 6 hours, but a version with 640x480 and
acceptable quality rendered within an hour. Athlon XP 1400 mhz. Sure it is
nice to have a powerful CPU.

>
> And is this shape made with CSG ?
> Or as a "blobbed" iso-surface ?

It's a blobed blob :) I can post the source if you are interested, but it's
just a blob with a sphere and 3 negative cylinders along each axis. I first
tried CSG but I found out that the simplest approach is to do it with the
blob object.

I also have an animation of the photon caustics without the object, the
quality is ok (it seems artefacts are impossible to get rid of entirely
though), and povray split out a 640x480 frame in 6 mins :) All common codecs
(mpeg1, mpeg2, divx, indeo) seem to totally mess it up though :(

I'm still new to photons, so it would be great if someone would help me
optimize my settings after I posted the source. I also find that the AA is
less than perfect (look at the top of the object and some of the sharper
lines of photon highlights for exapmle). Is this a limitation of povray or
am I missing something? My settings were:
threshold 0.05
depth 3
method 1

Oops I'm a bit too talkative this night (morning) I guess.

Gergely

PS: should photon jitter be avoided in animations? Is it the same kind of
random noise as in AA and media?

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"Txemi Jendrix" <tji### [at] euskalnetnet> wrote in message
news:3c424f3e$1@news.povray.org...
> Great image, very beautiful.

Thanks :)
>
> Will you share the source?, I'm interested in the photon part.

Source can be found in p.b.s-f now.

Gergely

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In article <3c42297c@news.povray.org>,
 "Gergely Vandor" <ger### [at] vandordatanethu> wrote:

> Where are the checks? :)
> 
> No fancy tricks here, but I still like it.
> 
> Comments, suggestions, etc. welcome.

It's my new desktop picture...
Could you post the source, so I could render it at a higher resolution?

-- 
 -- 
Christopher James Huff <chr### [at] maccom>

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"Christopher James Huff" <chr### [at] maccom> wrote in message
news:chr### [at] netplexaussieorg...

> Could you post the source, so I could render it at a higher resolution?
>

Already posted on p.b.s-f. (subject: glass blob with photons)

Gergely

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In article <3c4253b6@news.povray.org>, ger### [at] vandordatanethu says...

> PS: should photon jitter be avoided in animations? Is it the same kind of
> random noise as in AA and media?

I don't know but for the still image I think you could have used a higher 
jitter for the photons, there are some features in the caustics that 
shouldn't be there, IMHO.

btw, I think it would look even better with dispersion (but beware of the 
brightness bug...and the rendertime)

Lutz-Peter

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Eerie. I did an almost identical image about a month ago.

Gergely Vandor <ger### [at] vandordatanethu> wrote in message
news:3c42297c@news.povray.org...

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Well, I agree, looks really nice. Almost photorealistic.

ALMOST, because the large white spot without much gradient to it (where
the
lightsource is) is just a little too big for photos... ;)

Tim

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