Slime wrote:
> I expect it to be much less straight in the beginning.

But that's the opposite of what everyone else have been saying about the
last animation. :(

Have I gone from one extreme to the other in this regard?

> Also, It looks sort of 2D...

I know it looks a little ribbon-like. I'm trying to reduce that effect,
but it can't be avoided completely I'm afraid.

Rune
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Christoph Hormann wrote:
> I think the upper part of the smoke thinning out
> looks very good

Thanks!

Heh, the responses I get seem to be very diverse... ;)

> for the details about the shape i lack the
> practical experience.

Me too.

Rune
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Rick [Kitty5] wrote:
> dont know if its smoke - but its a lot more
> like it than the last

Good then. Any improvement is a good improvement. :)

Rune
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Hugo wrote:
> There are just some unnatural looking
> turns half way up

I can see what you mean - I'll see if I can fix that.

> but I think, if the smoke was part of a
> complex scene, no one would notice.

I hope you're right. ;)

> As others have said, it looks sort of,
> like a 2D paper that curls.

Yes, that's because that's what it actually is. I think smoke behaves a
little like that, so I choose to take that approach to the problem.
However, I'm doing my bet to hide the truth and make the 2d paper look
like real smoke...

> Yes please, I'd like to see how it actually works!

I'll send it to you.

> Though I'm a newbie to such things, and don't know
> if I can offer any useful feedback.

Well, simply using it and telling me about your experience will be
helpful. :)

Rune
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"Rune" <run### [at] mobilixnetdk> 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

It does look like smoke in a quiet room, yes :)

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"Data" <daf### [at] hotmailcom> wrote in message
news:3ce12c35@news.povray.org...
> "Rune" <run### [at] mobilixnetdk> 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
>
> It does look like smoke in a quiet room, yes :)
>
And test 1 looks like smoke in a room with a little bit of air flow (open
window or door nearby)

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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] mobilixnetdk> 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'

Preview of image 'ashtray.jpg'

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
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3D images and anims, include files, tutorials and more:
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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)
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