POV-Ray : Newsgroups : povray.binaries.animations : Cigarette Smoke Test (304kbu) Server Time
20 Jul 2024 01:14:48 EDT (-0400)
  Cigarette Smoke Test (304kbu) (Message 21 to 23 of 23)  
<<< Previous 10 Messages Goto Initial 10 Messages
From: Bill DeWitt
Subject: Re: Cigarette Smoke Test (304kbu)
Date: 14 May 2002 01:46:01
Message: <3ce0a499$1@news.povray.org>
"Rune" <run### [at] mobilixnetdk> wrote :
>
> As always, it difficult to precisely visualize for my inner eye what
> something looks like from a written description, but I can give it a
> try.

    I used to open my blinds just a crack in the early morning and set some
incense under the slit of sunlight that would come through. It allowed me to
study the internal shape of a stream of smoke fairly intently. I will try to
take a photo in the morning but here is a quick mouse sketch of the shape I
mean. This would be a horizontal cross section of the stream.

    I always thought that the shape allowed the smoke to store energy in a
smooth, protected inner spiral which works well as long as there is no
turbulence, but which comes apart completely as soon as one of the shells is
breached.


Post a reply to this message


Attachments:
Download 'new-2.jpg' (20 KB)

Preview of image 'new-2.jpg'
new-2.jpg


 

From: Rune
Subject: Re: Cigarette Smoke Test (304kbu)
Date: 14 May 2002 10:50:55
Message: <3ce1244f@news.povray.org>
Bill DeWitt wrote:
> I will try to take a photo in the morning but here is a
> quick mouse sketch of the shape I mean. This would be a
> horizontal cross section of the stream.

Aha. I hope to see the photo, but judging from your sketch I don't think
it's something that's possible to simulate with my system...

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


Post a reply to this message

From: Rune
Subject: Re: Cigarette Smoke Test (304kbu)
Date: 14 May 2002 10:50:56
Message: <3ce12450@news.povray.org>
Remco de Korte wrote:
> I have used POV a lot (a bit too much) for a project
> (a series) I've worked on for about 18 months. I was
> already working on two new titles when the publisher
> pulled the plug.

So the titles weren't released? That's a shame...

I think you're lucky to be able to use POV-Ray for projects in the first
place though, but of course there are times when there are better
choices...

> Unfortunately I made the mistake of downloading the
> full version of "Tripping the Rift" (is that the
> correct title). Now I know what I'd _like_ to be
> doing (but never will).

Perhaps it is something that I ought to know, but what is "Tripping the
Rift"?

> How are things on your end (besides the continuing
> stream of POVxperiments you keep producing)?

I've just finished the third and final year of college and I'm having my
exams these months. After summer I'll start at university studying
computer science and multimedia. I really look forward to that.

A frightening amount of my free time I spend on POV-Ray and related
projects. I have also worked as a pre-beta tester of POV-Ray 3.5 since I
was invited to it over a year ago. The pre-beta testers and the TAG Team
have not only tested POV-Ray 3.5 but also done major parts of the work
on updating the documentation, scene and include files, which has not
been a small job. For nine months I have worked as scene and include
files coordinator, and it has taken some of my time, but it is nice to
be able to help.

Followup-to povray.off-topic ...

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


Post a reply to this message

<<< Previous 10 Messages Goto Initial 10 Messages

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.