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Hi Rune,
An excellent animation! I think it looks very real. The
only slight problem might be that it seems a little
thick at the start. From my cig days, I remember the
speed of the rising smoke slowing down considerably
as it gets further away from the burning embers. That
would make the smoke quite a bit thinner at the start,
catching up with itself as it cools and slows. And I can
see all the smoke on my monitor and the wonderful
dissipation at the top.
Still, I think it's convincing enough to use in it's present
form. How long does it take to render and on what
hardware?
Great job!
=Bob=
"Rune" <run### [at] mobilixnet dk> wrote in message news:3ce04bfb@news.povray.org...
: (Kept the same header for consistency, but this doesn't necessarily have
: to be regarded as cigarette smoke.)
:
: Anyway, I tried to make the smoke more straight in the beginning and
: more turbulated higher up. Is this animation more like you thought it
: should be? Does this animation also have those curls or spiral forms
: that you talked about? Or did you mean something different...
:
: Well, not much more to say. Constructive criticism and comments in
: general are highly appreciated. :) --Rune
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I found a couple of reference photos if it helps.
-tgq
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Attachments:
Download 'smoking cigarette.jpg' (7 KB)
Download 'ashtray.jpg' (14 KB)
Preview of image 'smoking cigarette.jpg'
![smoking cigarette.jpg](/povray.binaries.animations/attachment/%3C3ce14921%40news.povray.org%3E/smoking%20cigarette.jpg?preview=1)
Preview of image 'ashtray.jpg'
![ashtray.jpg](/povray.binaries.animations/attachment/%3C3ce14921%40news.povray.org%3E/ashtray.jpg?preview=1)
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Lawrence Winstead wrote:
> As a smoker, I can say that this second animation
> looks very realistic.
Thanks!
> True, a greater thinning and spreading out at the top
> would be even more realistic, but its damn good now!
:)
> However, one little tweak: (at least on my cigarettes)
> the smoke starts out looking like straightened
> double-helix; thickness on either side and thinner in
> the middle. I don't know if this is possible to do,
> but after looking closely, that's what it looks like. :)
It should be possible to do actually. I'll give it a try!
> Anyway, keep up the awesome work!
Thanks for your comments!
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated Apr 14)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Ring: http://webring.povray.co.uk
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Data wrote:
> It does look like smoke in a quiet room, yes :)
Yay! :)
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated Apr 14)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Ring: http://webring.povray.co.uk
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=Bob= wrote:
> An excellent animation! I think it looks very real.
Thank you! :)
> The only slight problem might be that it seems a
> little thick at the start.
I'll try to fix that.
> Still, I think it's convincing enough to use in it's
> present form. How long does it take to render and on
> what hardware?
I have an Athlon 1700 and it took an hour and a half to render IIRC.
No media is used, but all the transparent bicubic patches are also a bit
slow to render, though nothing compared to how slow media would have
been.
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated Apr 14)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Ring: http://webring.povray.co.uk
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Hi Rune,
I've been working on an animation that uses media for
clouds and isosurface water. It takes a while to generate
a couple minutes of movie. I'd like to find a better way
to create animated clouds, do you think your particle
system might be able to work in that regard? I've been
testing out your system just doing the examples you
provided, so I've no real experience with the system
itself yet (soon though).
Thanks!
=Bob=
"Rune" <run### [at] mobilixnet dk> wrote in message news:3ce15933@news.povray.org...
: No media is used, but all the transparent bicubic patches are also a bit
: slow to render, though nothing compared to how slow media would have
: been. -- Rune
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TinCanMan wrote:
> I found a couple of reference photos if it helps.
Thanks! These are very useful!
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated Apr 14)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Ring: http://webring.povray.co.uk
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Hi Bob,
I don't think my particle system is very suitable for creating clouds
I'm afraid. At least I wouldn't know how to do it.
But there are other ways to create fast clouds. I haven't had a look at
it myself yet, but maybe you can use Gilles Tran's clouds posted to
povray.text.scene-files recently.
As for a replacement for isosurface water, that's not a job for a
particle system, but a heightfield with a function image might work
well.
Rune
--
3D images and anims, include files, tutorials and more:
Rune's World: http://rsj.mobilixnet.dk (updated Apr 14)
POV-Ray Users: http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Ring: http://webring.povray.co.uk
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Hi Rune,
The isosurface seems to be quick enough, but media
sure is sloooowwwwww....I tried Gilles' clouds, but I sort-of
liked the media ones better (sorry Gilles), especially for
animation. I'm using only a PIII 450, so it's just not enough
for some of these tougher pictures, like media, reflections
and transparencies.
Have a great day!
=Bob=
"Rune" <run### [at] mobilixnet dk> wrote in message news:3ce18724@news.povray.org...
: Hi Bob,
:
: I don't think my particle system is very suitable for creating clouds
: I'm afraid. At least I wouldn't know how to do it.
:
: But there are other ways to create fast clouds. I haven't had a look at
: it myself yet, but maybe you can use Gilles Tran's clouds posted to
: povray.text.scene-files recently.
:
: As for a replacement for isosurface water, that's not a job for a
: particle system, but a heightfield with a function image might work
: well. -- Rune
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On Tue, 14 May 2002 16:16:38 +0200, "Rune" <run### [at] mobilixnet dk>
wrote:
>TinCanMan wrote:
>> Looking better, but, even though it gets turbulated
>> higher up, it still doesn't seem to dissipate.
>
>See the attached image. How many blocks can you make out?
I can't make out any. :-/
Lousy screen -- when increasing the gamma enough to make out those shapes,
the bright white backgrounds and such are instand headache.
--
Marc van den Dikkenberg
--
The PowerBasic Archives -- http://www.xlsior.org
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