POV-Ray : Newsgroups : povray.binaries.animations : Spiral Warp Server Time
6 May 2021 14:57:32 EDT (-0400)
  Spiral Warp (Message 1 to 10 of 18)  
Goto Latest 10 Messages Next 8 Messages >>>
From: Bald Eagle
Subject: Spiral Warp
Date: 22 Jul 2018 22:45:00
Message: <web.5b5540daa3d27573458c7afe0@news.povray.org>
A storm is approaching.

Still working this out, but the key concepts are in place.
I could probably use a helpful quick-start pointer or two in using ffmpeg.
(but DAMN it is FAST! :O )

60 frames at 15 fps rendered in qtpov on Linux Mint 18.3

ffmpeg -y -r 15 -i SpiralWarp%02d.png -crf 15 -c:v libx264 -pix_fmt yuv420p
-metadata title="Prototype Spiral Warp - Bald Eagle 2018-07-22" Warp.mp4

looked good in konqeror


Post a reply to this message


Attachments:
Download 'warp.mp4.mpg' (246 KB)

From: dick balaska
Subject: Re: Spiral Warp
Date: 23 Jul 2018 00:09:25
Message: <5b5554f5@news.povray.org>
On 07/22/2018 10:43 PM, Bald Eagle wrote:
> A storm is approaching.
> 
> Still working this out, but the key concepts are in place.

That is slick!

I was thinking of

> I could probably use a helpful quick-start pointer or two in using ffmpeg.

Uh, that command below looks fine. What else did you want to do?
Chapter marks on a 4 second video? ;)

> (but DAMN it is FAST! :O )

Faster than real time.

> 
> 60 frames at 15 fps rendered in qtpov on Linux Mint 18.3

:D :D :D

> 
> ffmpeg -y -r 15 -i SpiralWarp%02d.png -crf 15 -c:v libx264 -pix_fmt yuv420p
> -metadata title="Prototype Spiral Warp - Bald Eagle 2018-07-22" Warp.mp4
> 
> looked good in konqeror

Looks superb in vlc.


-- 
dik
Rendered 328976 of 330000 (99%)


Post a reply to this message

From: Kenneth
Subject: Re: Spiral Warp
Date: 23 Jul 2018 08:10:00
Message: <web.5b55c4d214f0236ea47873e10@news.povray.org>
That is really cool, a great starting point for some interesting animated
effects. I'm following this with great interest (thinking about what the
addition of *more* spirals/vortices would look like as they all interact-- and
with some warp{turbulence...} thrown into the mix.)

As-is, it looks like the effect is 'confined' to a square; it would be great to
see it confined to a circle instead (if possible)-- to be more like a storm.


Post a reply to this message

From: Mike Horvath
Subject: Re: Spiral Warp
Date: 6 Feb 2021 19:47:35
Message: <601f38a7$1@news.povray.org>
On 7/22/2018 10:43 PM, Bald Eagle wrote:
> A storm is approaching.
> 
> Still working this out, but the key concepts are in place.
> I could probably use a helpful quick-start pointer or two in using ffmpeg.
> (but DAMN it is FAST! :O )
> 
> 60 frames at 15 fps rendered in qtpov on Linux Mint 18.3
> 
> ffmpeg -y -r 15 -i SpiralWarp%02d.png -crf 15 -c:v libx264 -pix_fmt yuv420p
> -metadata title="Prototype Spiral Warp - Bald Eagle 2018-07-22" Warp.mp4
> 
> looked good in konqeror
> 


Was the work on spiral warp ever completed? Is it implemented in POV 3.8?


Mike


Post a reply to this message

From: Bald Eagle
Subject: Re: Spiral Warp
Date: 6 Feb 2021 21:05:00
Message: <web.601f4a3c14f0236e1f9dae300@news.povray.org>
Mike Horvath <mik### [at] gmailcom> wrote:

> Was the work on spiral warp ever completed? Is it implemented in POV 3.8?


http://news.povray.org/povray.binaries.images/thread/%3Cweb.5d2919d8729ff1951b6c6b3a0%40news.povray.org%3E/?ttop=432701
&toff=200

http://news.povray.org/povray.binaries.images/thread/%3Cweb.5d2a00d41a6827c24eec112d0%40news.povray.org%3E/?ttop=430026
&toff=50


I worked it all out to my satisfaction at the time:

http://news.povray.org/povray.binaries.images/thread/%3Cweb.5d3c5fe27be432e04eec112d0%40news.povray.org%3E/?ttop=429839
&toff=50

It hasn't been implemented anywhere else AFAIK.


Post a reply to this message

From: Mike Horvath
Subject: Re: Spiral Warp
Date: 7 Feb 2021 01:50:07
Message: <601f8d9f$1@news.povray.org>
Can you link to the code itself? Have you written a tutorial? Thanks.


Mike


Post a reply to this message

From: Bald Eagle
Subject: Re: Spiral Warp
Date: 7 Feb 2021 10:05:10
Message: <web.6020016614f0236e1f9dae300@news.povray.org>
Mike Horvath <mik### [at] gmailcom> wrote:
> Can you link to the code itself? Have you written a tutorial? Thanks.
> Mike

I mean there's what I posted, which includes the fundamental functions to
perturb a pigment pattern.

I haven't posted the source for the twisted spheres image - since that was long,
involved, and a skull-cracker.

I juggled a lot of big projects in a explosion of sustained activity, and then
with all that's been happening IRL, I just hit burnout, and needed to focus on
local things here for a while - so no tutorial.

I'm assuming you want to use it to make storms in your media?

The basic code to add a localized vortex to a pigment pattern is here:

http://news.povray.org/povray.binaries.images/message/%3Cweb.5d2a0c323717ac604eec112d0%40news.povray.org%3E/#%3Cweb.5d2
a0c323717ac604eec112d0%40news.povray.org%3E

Try that in a simple test scene and see if that works.


Post a reply to this message

From: Mike Horvath
Subject: Re: Spiral Warp
Date: 7 Feb 2021 17:34:32
Message: <60206af8$1@news.povray.org>
On 2/7/2021 10:04 AM, Bald Eagle wrote:
> The basic code to add a localized vortex to a pigment pattern is here:
> 
>
http://news.povray.org/povray.binaries.images/message/%3Cweb.5d2a0c323717ac604eec112d0%40news.povray.org%3E/#%3Cweb.5d2
> a0c323717ac604eec112d0%40news.povray.org%3E
> 
> Try that in a simple test scene and see if that works.
> 
> 


Okay thanks!


Mike


Post a reply to this message

From: Jörg "Yadgar" Bleimann
Subject: Re: Spiral Warp
Date: 12 Feb 2021 18:48:15
Message: <602713bf$1@news.povray.org>
Hi(gh)!

On 07.02.21 03:02, Bald Eagle wrote:

> I worked it all out to my satisfaction at the time:
> 
>
http://news.povray.org/povray.binaries.images/thread/%3Cweb.5d3c5fe27be432e04eec112d0%40news.povray.org%3E/?ttop=429839
> &toff=50
> 
> It hasn't been implemented anywhere else AFAIK.

Wow! That would be perfect for my gas giants, such as Sagan/Whatmough or 
Qais/Ghurghusht!

Which unofficial patch did you use?

See you in Khyberspace!

Yadgar

Now playing: Polonaise (Jon and Vangelis)


Post a reply to this message

From: Bald Eagle
Subject: Re: Spiral Warp
Date: 12 Feb 2021 19:25:00
Message: <web.60271b5f14f0236e1f9dae300@news.povray.org>
=?UTF-8?Q?J=c3=b6rg_=22Yadgar=22_Bleimann?= <yaz### [at] gmxde> wrote:
> Hi(gh)!

> Wow! That would be perfect for my gas giants, such as Sagan/Whatmough or
> Qais/Ghurghusht!
>
> Which unofficial patch did you use?


When I get some rest and have some more energy and focus, I'm going to try to
make sure it's fully applicable for use with 3D pigment patterns and media.

I figured out how to implement a placement / repetition warp in SDL, and so once
it's all worked out, you should be able to plop multiple spiral warps into a
single pigment pattern definition, and have them all work.

It's gonna be a little complicated, so it may take some time, but the important
parts are figured out - so now it's just making a scene incorporating all of the
pieces, seeing what's broken or missing, and iteratively tweaking it...

No unofficial patch - it was all done in standard POV-Ray 3.8 (qtpovray)


Post a reply to this message

Goto Latest 10 Messages Next 8 Messages >>>

Copyright 2003-2021 Persistence of Vision Raytracer Pty. Ltd.