POV-Ray : Newsgroups : povray.binaries.images : using 'object pattern' as media Server Time
26 Sep 2022 03:12:58 EDT (-0400)
  using 'object pattern' as media (Message 21 to 23 of 23)  
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From: Kenneth
Subject: Re: using 'object pattern' as media
Date: 12 May 2022 19:00:00
Message: <web.627d8ffeac9c0ae12eadabda6e066e29@news.povray.org>
Paolo Gibellini <p.g### [at] gmailcom> wrote:
>
> I absolutely love this technique. I tried something similar a few years
> a go, but my results were not convincing so I had given up.
>
> Very very interesting,

Thank you Paolo.

Here is another example, just emission media. I used an old CSG human model that
I made years ago (all of its parts are 'merged' for use as the  object-pattern).
I first made a CSG difference of it with a slightly smaller-scaled version, to
create a very thin 'shell'. When heavy warp{turbulence...} is applied, it looks
like wispy tendrils that are volumetric in 3-D. I had to use a very high
'samples' value for this.  The result looked like a nebula-- so I added a
spaceship! The background is a darkened photo of a real nebula.

I made an animation of this, with the camera moving through the media. I will
post it to my previous newsgroup thread in p.b.animations.


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Attachments:
Download 'nebula_construction.jpg' (108 KB)

Preview of image 'nebula_construction.jpg'
nebula_construction.jpg


 

From: Paolo Gibellini
Subject: Re: using 'object pattern' as media
Date: 21 May 2022 17:45:24
Message: <62895d74$1@news.povray.org>
Il 13/05/2022 00:57, Kenneth ha scritto:
 > Paolo Gibellini <p.g### [at] gmailcom> wrote:
 >>
 >> I absolutely love this technique. I tried something similar a few years
 >> a go, but my results were not convincing so I had given up.
 >>
 >> Very very interesting,
 >
 > Thank you Paolo.
 >
 > Here is another example, just emission media. I used an old CSG human 
model that
 > I made years ago (all of its parts are 'merged' for use as the 
object-pattern).
 > I first made a CSG difference of it with a slightly smaller-scaled 
version, to
 > create a very thin 'shell'. When heavy warp{turbulence...} is 
applied, it looks
 > like wispy tendrils that are volumetric in 3-D. I had to use a very high
 > 'samples' value for this.  The result looked like a nebula-- so I added a
 > spaceship! The background is a darkened photo of a real nebula.
 >
 > I made an animation of this, with the camera moving through the 
media. I will
 > post it to my previous newsgroup thread in p.b.animations.
 >
 >
 >
 >

Impressive.

Paolo


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From: Mr
Subject: Re: using 'object pattern' as media
Date: 2 Jun 2022 08:15:00
Message: <web.6298a95fac9c0ae116086ed06830a892@news.povray.org>
"Kenneth" <kdw### [at] gmailcom> wrote:
> Paolo Gibellini <p.g### [at] gmailcom> wrote:
> >
> > I absolutely love this technique. I tried something similar a few years
> > a go, but my results were not convincing so I had given up.
> >
> > Very very interesting,
>
> Thank you Paolo.
>
> Here is another example, just emission media. I used an old CSG human model that
> I made years ago (all of its parts are 'merged' for use as the  object-pattern).
> I first made a CSG difference of it with a slightly smaller-scaled version, to
> create a very thin 'shell'. When heavy warp{turbulence...} is applied, it looks
> like wispy tendrils that are volumetric in 3-D. I had to use a very high
> 'samples' value for this.  The result looked like a nebula-- so I added a
> spaceship! The background is a darkened photo of a real nebula.
>
> I made an animation of this, with the camera moving through the media. I will
> post it to my previous newsgroup thread in p.b.animations.

Hi Kenneth, Could we use some of your pictures for POV-Ray documentation ?
I sent you a private email but received no answer (my provider tends to flag as
spam any gmail sender :-/ )


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