POV-Ray : Newsgroups : povray.binaries.images : Rotating the pigment too (51 KB) Server Time: 19 Feb 2019 22:50:04 GMT
 Rotating the pigment too (51 KB) (Message 1 to 10 of 15)
 From: Tor Olav Kristensen Subject: Rotating the pigment too (51 KB) Date: 14 Apr 2001 16:29:35 Message: <3AD87920.DE49F9FF@hotmail.com>
```This is the same type of Iso as the in my
"Spherical Splash" image:

http://news.povray.org/3AA41C10.55F23524%40hotmail.com

(Sorry, but no radiosity this time.)

Now I have rotated the pigment in the same
noisy way as the iso is rotated.

But I think that I could have achieved the
the colour of the pigment change as a
function of the distance from the sphere
centre (radially changing pigment colour ?).

--
Best regards,

Tor Olav

mailto:tor### [at] hotmailcom
http://hjem.sol.no/t-o-k/tokpicts.html
http://www.crosswinds.net/~tok
```

Attachments:

Preview of image 'pigmentrot02.jpg'

 From: Alberto Subject: Re: Rotating the pigment too (51 KB) Date: 14 Apr 2001 18:41:15 Message: <3AD89999.67A4FBBD@usb.ve>
```I like this one :-)

Alberto.
```
 From: Tor Olav Kristensen Subject: Re: Rotating the pigment too (51 KB) Date: 14 Apr 2001 18:52:10 Message: <3AD89A95.A0990F56@hotmail.com>
```JRG wrote:
>
> It's really cool.

Thank you !

> How you did it ? Pigment function?

The shape is done in MegaPOV by first randomly
displacing the surface of an iso-sphere with the
the noise3d() function, and then using 3 other
random functions to feed a general rotation
function with random angles so that it rotates
each point on the iso-surface randomly around
each of the x, y, and z -axes.

You may look at the source code that I posted
to povray.text.scene-files 10. March this year:

http://news.povray.org/3aa9fa11%40news.povray.org
http://news.povray.org/3AAA03E6.6ECB760B%40hotmail.com

The pigment is done with a pigment function
that are fed with the same rotated coordinates.

I can post the source for if anyone is interested.

> Waiting for the radiosity version (I couldn't appreciate the first one,

private PC right now. And it's WAY too slow for
a radiosity version. (Maybe I'll do it on my
much faster PC at work when the easter is over.)

--
Best regards,

Tor Olav

mailto:tor### [at] hotmailcom
http://hjem.sol.no/t-o-k/tokpicts.html
http://www.crosswinds.net/~tok
```
 From: Tor Olav Kristensen Subject: Re: Rotating the pigment too (51 KB) Date: 14 Apr 2001 18:56:56 Message: <3AD89BB8.BB48CBD6@hotmail.com>
```Alberto wrote:
>
> I like this one :-)

Thanks !

--
Best regards,

Tor Olav

mailto:tor### [at] hotmailcom
http://hjem.sol.no/t-o-k/tokpicts.html
http://www.crosswinds.net/~tok
```
 From: Tek Subject: Re: Rotating the pigment too (51 KB) Date: 14 Apr 2001 19:14:47 Message: <3ad8a1a7@news.povray.org>
```Until now I've resisted the urge to use megapov. But this image has
converted me :)

It's gorgeous. Can you animate it?

--
Tek
http://www.evilsuperbrain.com
```
 From: Tor Olav Kristensen Subject: Re: Rotating the pigment too (51 KB) Date: 14 Apr 2001 19:33:30 Message: <3AD8A447.298815CB@hotmail.com>
```Tek wrote:
>
> Until now I've resisted the urge to use megapov. But this image has
> converted me :)

Hehe. This sounds a lot like me. I managed to
resist the temptation to start using MegaPOV
from March to October last year :)

> It's gorgeous. Can you animate it?

Thank you !

Yes it can be animated; e.g. by slowly shifting
the origin of the rotation functions or the
first surface-displacement function. And maybe
it would be cool if the colors were cycled in
a "pulsing" way from the inside and out at the
same time.

But now I'm dreaming... I don't have a PC to
do such stuff here at the moment :(

--
Best regards,

Tor Olav

mailto:tor### [at] hotmailcom
http://hjem.sol.no/t-o-k/tokpicts.html
http://www.crosswinds.net/~tok
```
 From: Sander Subject: Re: Rotating the pigment too (51 KB) Date: 14 Apr 2001 21:33:13 Message:
```In article <3AD87920.DE49F9FF@hotmail.com>, Tor Olav Kristensen says...
>
> This is the same type of Iso as the in my
> "Spherical Splash" image:
>
> http://news.povray.org/3AA41C10.55F23524%40hotmail.com
>
> (Sorry, but no radiosity this time.)
>
> Now I have rotated the pigment in the same
> noisy way as the iso is rotated.
>
> But I think that I could have achieved the
> the colour of the pigment change as a
> function of the distance from the sphere
> centre (radially changing pigment colour ?).
>
>
>
>
You did it again: very very real-looking, though i don't expect to see
it around ever! Very good :))
--
Regards,  Sander
```
 From: Jamie Davison Subject: Re: Rotating the pigment too (51 KB) Date: 14 Apr 2001 21:51:32 Message:
```> Yes it can be animated; e.g. by slowly shifting
> the origin of the rotation functions or the
> first surface-displacement function. And maybe
> it would be cool if the colors were cycled in
> a "pulsing" way from the inside and out at the
> same time.
>
> But now I'm dreaming... I don't have a PC to
> do such stuff here at the moment :(

I don't know if you read povray.general, but I just upgraded my machine,
and want something to test it on.  Fling me the source to my email, and
I'll have a go at rendering it and posty the resultant .mpg to p.b.a.

Bye for now,
Jamie.
```
 From: Tor Olav Kristensen Subject: Re: Rotating the pigment too (51 KB) Date: 15 Apr 2001 00:36:22 Message: <3AD8EB3F.A9B5148E@hotmail.com>
```Sander wrote:
>...
> You did it again: very very real-looking, though i don't expect to see
> it around ever! Very good :))

Thanks again Sander !

Maybe it'll come to you in one of your dreams...

--
Goodnight from

Tor Olav

mailto:tor### [at] hotmailcom
http://hjem.sol.no/t-o-k/tokpicts.html
http://www.crosswinds.net/~tok
```
 From: Tor Olav Kristensen Subject: Re: Rotating the pigment too (51 KB) Date: 15 Apr 2001 00:43:17 Message: <3AD8ECE1.C2CC570B@hotmail.com>
```Jamie Davison wrote:
>
> > Yes it can be animated; e.g. by slowly shifting
> > the origin of the rotation functions or the
> > first surface-displacement function. And maybe
> > it would be cool if the colors were cycled in
> > a "pulsing" way from the inside and out at the
> > same time.
> >
> > But now I'm dreaming... I don't have a PC to
> > do such stuff here at the moment :(
>
> I don't know if you read povray.general, but I just upgraded my machine,
> and want something to test it on.  Fling me the source to my email, and
> I'll have a go at rendering it and posty the resultant .mpg to p.b.a.

Thank you very much for your offer Jamie.

I've been out for a couple of beers,
so I'm not able to make POV-animations
at the moment  =)

Now I'll have some sleep and then I'll
see of I can find time tomorrow to
refresh my animation skills and code
some animation of my iso-mess.

--
Best regards,

Tor Olav

mailto:tor### [at] hotmailcom
http://hjem.sol.no/t-o-k/tokpicts.html
http://www.crosswinds.net/~tok
```