POV-Ray : Newsgroups : povray.binaries.animations : New Glow (296k) Server Time
20 Jul 2024 15:31:21 EDT (-0400)
  New Glow (296k) (Message 1 to 8 of 8)  
From: Christoph Hormann
Subject: New Glow (296k)
Date: 12 Sep 2000 10:46:57
Message: <39BE421A.80CBF8D2@schunter.etc.tu-bs.de>
Just playing with the new glow parameters of Megapov+ 0.3.1.

The animation affects size, fade_power, turbulence warp and color. The animation
functions are not much worked out, so things don't fit together very well.  

Comments welcome.

Christoph

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


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Attachments:
Download 'glow1.mpg' (296 KB)

From: Jamie Davison
Subject: Re: New Glow (296k)
Date: 12 Sep 2000 17:22:02
Message: <MPG.1428a51b9d7b65cb9897d0@news.povray.org>
On Tue, 12 Sep 2000 16:47:54 +0200, Christoph Hormann wrote...
> Just playing with the new glow parameters of Megapov+ 0.3.1.

It's remarkable how many people seem to be doing that at the moment 
<grin>
 
> The animation affects size, fade_power, turbulence warp and color. The animation
> functions are not much worked out, so things don't fit together very well.  
> 
> Comments welcome.

Strange, the glow nearest the camera seems to move left and back as the 
turbulence increases...

I'm assuming that this was rendered using radiosity like the still in 
p.b.i

If you could figure out how to make it look like the nearest glow is 
remaining stationary, I'd really like it.  As it is I just like it :)

Bye for now,
     Jamie.


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From: Tony[B]
Subject: Re: New Glow (296k)
Date: 13 Sep 2000 00:43:39
Message: <39bf05fb@news.povray.org>
I like it. I don't like what happens to the first glow in the foreground,
but I like the thing as a whole. Good work.


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From: Christoph Hormann
Subject: Re: New Glow (296k)
Date: 13 Sep 2000 04:01:18
Message: <39BF348B.4E2A3B1E@schunter.etc.tu-bs.de>
Jamie Davison wrote:
> 
> On Tue, 12 Sep 2000 16:47:54 +0200, Christoph Hormann wrote...
> > Just playing with the new glow parameters of Megapov+ 0.3.1.
> 
> It's remarkable how many people seem to be doing that at the moment
> <grin>
> 

Just a between work, i'm not planning to do something big with glows right now.

> 
> I'm assuming that this was rendered using radiosity like the still in
> p.b.i
> 

Yup.

> If you could figure out how to make it look like the nearest glow is
> remaining stationary, I'd really like it.  As it is I just like it :)
> 

That's a problem of turbulence in general, because it's nearest to the camera. 
The other glows seem to have the same problem.  Could probably be changed by
modifying the turbulence parameters.

Christoph

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


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From: Bob Hughes
Subject: Re: New Glow (296k)
Date: 13 Sep 2000 05:22:20
Message: <39bf474c$1@news.povray.org>
"Christoph Hormann" <Chr### [at] schunteretctu-bsde> wrote in
message news:39BE421A.80CBF8D2@schunter.etc.tu-bs.de...
|
| Just playing with the new glow parameters of Megapov+ 0.3.1.
|
| The animation affects size, fade_power, turbulence warp and color. The
animation
| functions are not much worked out, so things don't fit together very well.

Main thing I can think of is one word: absorption.  Without any these glows
tend to only accumulate the color intensity, so this animation looks like
some sort of hot plasma.  Other effects would always be limited by that
fact.  Well, I'm just making it seem a bad thing to not be media-like
really.  These glows aren't media obviously.  I forgot, all that's needed is
to place dark (negative?) glows in somehow to mesh with the overlapping
bright ones.  Sorry, I get carried away when I have a thought.

Bob


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From: Rick [Kitty5]
Subject: Re: New Glow (296k)
Date: 13 Sep 2000 13:13:34
Message: <39bfb5be$1@news.povray.org>
damn that be nice, keep these glow animations comming !

Rick


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From: Chris Huff
Subject: Re: New Glow (296k)
Date: 14 Sep 2000 07:00:34
Message: <chrishuff-677FFE.06022814092000@news.povray.org>
In article <39bf474c$1@news.povray.org>, "Bob Hughes" 
<per### [at] aolcom?subject=PoV-News:> wrote:

> Main thing I can think of is one word: absorption.  Without any these 
> glows tend to only accumulate the color intensity, so this animation 
> looks like some sort of hot plasma.  Other effects would always be 
> limited by that fact.  Well, I'm just making it seem a bad thing to 
> not be media-like really.  These glows aren't media obviously.  I 
> forgot, all that's needed is to place dark (negative?) glows in 
> somehow to mesh with the overlapping bright ones.  Sorry, I get 
> carried away when I have a thought.

I'm planning to add new rendeing modes like this very soon, but I have 
been a bit distracted with the blob/particle_system bug in the little 
time I have had left after school and work.
I might even be able to precompute the illumination of each scattering 
glow by tracing from it's center...not wonderfully accurate, but an 
interesting idea.
If you want a negative/subtractive glow, just use negative values in the 
color.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><


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From: Bob Hughes
Subject: Re: New Glow (296k)
Date: 14 Sep 2000 07:18:35
Message: <39c0b40b@news.povray.org>
"Chris Huff" <chr### [at] maccom> wrote in message
news:chrishuff-677FFE.06022814092000@news.povray.org...
|
| I'm planning to add new rendering modes like this very soon, but I have
| been a bit distracted with the blob/particle_system bug in the little
| time I have had left after school and work.
| I might even be able to precompute the illumination of each scattering
| glow by tracing from it's center...not wonderfully accurate, but an
| interesting idea.
| If you want a negative/subtractive glow, just use negative values in the
| color.

Sounds neat.  Try not to over-work yourself.  Weekends were made for
relaxation just like always.  That advice goes to Nathan and all POV-Team
people also.
Even if my dungeon does seem so empty and I wish I had you all here as my
personal programming slaves.

Bob


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