POV-Ray : Newsgroups : povray.newusers : Can you use Heightfields with CSG? Server Time
28 Nov 2024 05:59:55 EST (-0500)
  Can you use Heightfields with CSG? (Message 1 to 4 of 4)  
From: John D  Gwinner
Subject: Can you use Heightfields with CSG?
Date: 7 Jul 2001 18:54:15
Message: <3b479317$1@news.povray.org>
Can you use Heightfields with CSG?

I'm getting odd results.

I'm using MegaPOV and tried the 'inside_vector' (ala meshes) but this was
rejected as part of the height field.

   == John ==


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From: Ken
Subject: Re: Can you use Heightfields with CSG?
Date: 7 Jul 2001 19:12:01
Message: <3B479731.5070554E@pacbell.net>
"John D. Gwinner" wrote:
> 
> Can you use Heightfields with CSG?
> 
> I'm getting odd results.

HF's have a clearly defined inside and outside so are usable in CSG
operations. There are some limitations on what you can do with them
but CSG is definately possible.
 
> I'm using MegaPOV and tried the 'inside_vector' (ala meshes) but this was
> rejected as part of the height field.

Can't answer this part...

-- 
Ken Tyler


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From: Margus Ramst
Subject: Re: Can you use Heightfields with CSG?
Date: 7 Jul 2001 21:14:36
Message: <3b47b3fc@news.povray.org>
"John D. Gwinner" <jgw### [at] hotmailcom> wrote:

> Can you use Heightfields with CSG?
> 

Yes, you can; unlike meshes they have a well-defined interior and exterior.
Basically, all points beneath the height field are considered to be
"inside", even though there is no visible delimiting surface there.

> I'm getting odd results.
> 

Could you be a bit more specific?

-- 
Margus Ramst

Personal e-mail: mar### [at] peakeduee
TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg
Home page http://www.hot.ee/margusrt


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From: John D  Gwinner
Subject: Re: Can you use Heightfields with CSG?
Date: 8 Jul 2001 02:34:58
Message: <3b47ff12@news.povray.org>
Ah, that helps.

I will post more specifics, but let me play with it first - thinking through
what's 'inside' explains what I was getting.  Let me fiddle and I'll post
something soon in images.

        == John ==

"Margus Ramst" <mar### [at] peakeduee> wrote in message
news:3b47b3fc@news.povray.org...
> "John D. Gwinner" <jgw### [at] hotmailcom> wrote:
>
> > Can you use Heightfields with CSG?
> >
>
> Yes, you can; unlike meshes they have a well-defined interior and
exterior.
> Basically, all points beneath the height field are considered to be
> "inside", even though there is no visible delimiting surface there.
>
> > I'm getting odd results.
> >
>
> Could you be a bit more specific?
>
> --
> Margus Ramst
>
> Personal e-mail: mar### [at] peakeduee
> TAG (Team Assistance Group) e-mail: mar### [at] tagpovrayorg
> Home page http://www.hot.ee/margusrt


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