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From: Sir Charles W Shults III
Subject: Re: Trailing rainbow with 150 particles (MPEG 186kb)
Date: 25 Oct 2002 18:34:03
Message: <3db9c6db$1@news.povray.org>
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I second that opinion. Very impressive work.
Cheers!
Chip Shults
My robotics, space and CGI web page - http://home.cfl.rr.com/aichip
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From: Tim Nikias
Subject: Re: Trailing rainbow with 150 particles (MPEG 186kb)
Date: 25 Oct 2002 20:32:43
Message: <3db9e2ab@news.povray.org>
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Thanks!
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmx de
> I second that opinion. Very impressive work.
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From: Tim Nikias
Subject: Re: Trailing rainbow with 150 particles (MPEG 186kb)
Date: 25 Oct 2002 20:35:35
Message: <3db9e357@news.povray.org>
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> 9 hours??? Gosh, you have *way* more patients then me ;-)
Nope, not really, I was sleeping...
Thank you!
> The only thing I would possibly change is to have the trails fade as they
> get older... Oh, and higher resolution ;-) - but that's gonna _eat_ your
CPU
> time and our bandwidth :-(
I had that in mind, but this effect was just quickly hacked, not
something that'll stay this way. A first attempt, so to speak.
Higher resolution wouldn't have that much impact, I'd say, the
scene isn't that difficult, its the parsing that's very complicated.
> Just out of interest, does this thing use radiosity or normal point
lights?
These are fading point lights. Radiosity requires way too high settings
with way too much time to be accurate enough for an animation
like this (I've tried with other, similiar things before).
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde
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From: Tim Nikias
Subject: Re: Trailing rainbow with 150 particles (MPEG 186kb)
Date: 25 Oct 2002 20:35:44
Message: <3db9e360$1@news.povray.org>
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Thanks!
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde
> Beautiful!
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From: Tim Nikias
Subject: Re: Trailing rainbow with 150 particles (MPEG 186kb)
Date: 25 Oct 2002 20:36:39
Message: <3db9e397@news.povray.org>
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> That looks great. Would look especially cool with solid objects too.
Thank you. Perhaps I'll try that solid one in a few days, when I'm
off to the University again and can't do anything with the PC anyway.
(9 hours, remember? :-)
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde
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From: hughes, b
Subject: Re: Trailing rainbow with 150 particles (MPEG 186kb)
Date: 26 Oct 2002 03:16:36
Message: <3dba4154$1@news.povray.org>
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Real cool Tim. Like having some special time vision capable of holding an
image longer. Oh yeah... called persistence of vision! ;-)
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From: Andrew Coppin
Subject: Re: Trailing rainbow with 150 particles (MPEG 186kb)
Date: 26 Oct 2002 04:22:06
Message: <3dba50ae@news.povray.org>
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> Real cool Tim. Like having some special time vision capable of holding an
> image longer. Oh yeah... called persistence of vision! ;-)
*grins widely*
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From: Andrew Coppin
Subject: Re: Trailing rainbow with 150 particles (MPEG 186kb)
Date: 26 Oct 2002 04:25:56
Message: <3dba5194@news.povray.org>
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"Tim Nikias" <tim### [at] gmxde> wrote in message
news:3db9e357@news.povray.org...
> > 9 hours??? Gosh, you have *way* more patients then me ;-)
>
> Nope, not really, I was sleeping...
Mmm... top tip... must remember that one! (Ooo, hey - I could use my laptop
as a hot water bottle... :-)
> > Just out of interest, does this thing use radiosity or normal point
> lights?
>
> These are fading point lights.
Fading as in using fade_power?
I assume it's one lightsource per particle... Isn't that rather a lot of
lights? (Could explane why it looks a bit like radiosity I guess...)
> Radiosity requires way too high settings
> with way too much time to be accurate enough for an animation
> like this (I've tried with other, similiar things before).
Fair enough - this scene seems to take quite long enuf already! ;-)
Andrew.
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On Sat, 26 Oct 2002 09:25:49 +0100, "Andrew Coppin"
<orp### [at] btinternetcom> wrote:
>Mmm... top tip... must remember that one! (Ooo, hey - I could use my laptop
>as a hot water bottle... :-)
Incidentally, that's what I did last weekend when some jerk had played
with the "Ausschalter zu Oilfeuerung" of the house. Apparently the
chimney sweepers had turned it off on Thursday, swept the chimney on
Friday and forgot to turn it on. I discovered that on Saturday
afternoon after I got back from work and turned it back on. My ass
nearly froze on Saturday night and so I stayed up late, watching
several movies with the laptop in my, well, lap and the hair dryer on
the table, blowing hot air towards the bed.
And then I hear news reports of people already freezing to death in
Europe... no wonder, if they have the same type of chimney sweepers!
Follow-ups set.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
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From: Tim Nikias
Subject: Re: Trailing rainbow with 150 particles (MPEG 186kb)
Date: 26 Oct 2002 20:07:00
Message: <3dbb2e24$1@news.povray.org>
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Its actually only one fade_power/fade_distance light
per particle, but not per trailing-particle:
150 lightsources for 150 particles, not more.
Regards,
Tim
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde
>
> Fading as in using fade_power?
>
> I assume it's one lightsource per particle... Isn't that rather a lot of
> lights? (Could explane why it looks a bit like radiosity I guess...)
>
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