POV-Ray : Newsgroups : povray.text.tutorials : Isosurface Tutorial Update Server Time: 26 Jan 2020 12:12:42 GMT
  Isosurface Tutorial Update (Message 1 to 10 of 10)  
From: Mike Williams
Subject: Isosurface Tutorial Update
Date: 10 Sep 2001 20:59:53
Message: <WQUO5AAJaSn7EwPv@econym.demon.co.uk>
I've rushed through an update of my Isosurface Tutorial to include the
isosurface syntax used in POV-Ray 3.5 beta 1.

All the example source files are now available in both MegaPOV and POV
3.5b1 formats. The main text now follows 3.5b1 syntax with the
significant MegaPOV differences highlighted.

Absolute beginners to isosurfaces would benefit by looking through the
isosurface tutorial pages included in the 3.5b1 documentation before
digging too deep into my pages.

I'm sure that there are still lots of new tricks that can be done with
3.5b1 that were not possible with MegaPOV, and I'll be updating the
tutorial as I find them.

It's at <http://www.econym.demon.co.uk/isotut/index.htm>

-- 
Mike Williams
Gentleman of Leisure


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From: Daniel Matthews
Subject: Re: Isosurface Tutorial Update
Date: 10 Sep 2001 22:42:21
Message: <9094835.mcEBGB3zze@3-e.net>
Thanks!

Mike Williams wrote:
> 
> It's at <http://www.econym.demon.co.uk/isotut/index.htm>
>


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From: Y
Subject: Re: Isosurface Tutorial Update
Date: 11 Sep 2001 02:04:12
Message: <3b9d711c@news.povray.org>
: It's at <http://www.econym.demon.co.uk/isotut/index.htm>
:
: --
: Mike Williams
: Gentleman of Leisure

Thanks Mike ... this is GREAT !!!
--
Y


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From: s1631001
Subject: Re: Isosurface Tutorial Update
Date: 29 Nov 2001 19:57:20
Message: <3C069337.DD4242E4@namtar.qub.ac.uk>
While I was looking at http://www.econym.demon.co.uk/isotut/nfunc2.htm ,
the second item claims to be a quantum-mechanical function. I'm a
physics student myself, and I don't recall ever having seen it; the
image above it, however looks VERY familiar! A 3-d version of an
electron density function. Someone's gotten confused, but don't worry;
it's not you.

Mike Williams wrote:
> 
> I've rushed through an update of my Isosurface Tutorial to include the
> isosurface syntax used in POV-Ray 3.5 beta 1.
> 
> All the example source files are now available in both MegaPOV and POV
> 3.5b1 formats. The main text now follows 3.5b1 syntax with the
> significant MegaPOV differences highlighted.
> 
> Absolute beginners to isosurfaces would benefit by looking through the
> isosurface tutorial pages included in the 3.5b1 documentation before
> digging too deep into my pages.
> 
> I'm sure that there are still lots of new tricks that can be done with
> 3.5b1 that were not possible with MegaPOV, and I'll be updating the
> tutorial as I find them.
> 
> It's at <http://www.econym.demon.co.uk/isotut/index.htm>
> 
> --
> Mike Williams
> Gentleman of Leisure

-- 
signature{
  "Grey Knight"
  contact{
    email "gre### [at] yahoocom"
  }
  site_of_week{
    url "http://mathworld.wolfram.com"
  }
}


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From: Soulstorm
Subject: Re: Isosurface Tutorial Update
Date: 22 Feb 2002 07:57:14
Message: <3c75f9da@news.povray.org>
This answers my questions about surface deforms!!

one more thing, just for interest sake - is it at all possible to have
isosufaces with interiors? for instance a waterblob floating in space with
ior?

I would suppose not, but it would be nice to know if it can be done...
-ss-
"Mike Williams" <mik### [at] nospamplease> wrote in message
news:WQU### [at] econymdemoncouk...
>
> I've rushed through an update of my Isosurface Tutorial to include the
> isosurface syntax used in POV-Ray 3.5 beta 1.
>
> All the example source files are now available in both MegaPOV and POV
> 3.5b1 formats. The main text now follows 3.5b1 syntax with the
> significant MegaPOV differences highlighted.
>
> Absolute beginners to isosurfaces would benefit by looking through the
> isosurface tutorial pages included in the 3.5b1 documentation before
> digging too deep into my pages.
>
> I'm sure that there are still lots of new tricks that can be done with
> 3.5b1 that were not possible with MegaPOV, and I'll be updating the
> tutorial as I find them.
>
> It's at <http://www.econym.demon.co.uk/isotut/index.htm>
>
> --
> Mike Williams
> Gentleman of Leisure


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From: Warp
Subject: Re: Isosurface Tutorial Update
Date: 22 Feb 2002 08:36:14
Message: <3c7602fe@news.povray.org>
Soulstorm <der### [at] gomailcoza> wrote:
> one more thing, just for interest sake - is it at all possible to have
> isosufaces with interiors? for instance a waterblob floating in space with
> ior?

> I would suppose not, but it would be nice to know if it can be done...

  Why do you suppose that isosurfaces have no interior?

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -


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From: Soulstorm
Subject: Re: Isosurface Tutorial Update
Date: 22 Feb 2002 09:26:41
Message: <3c760ed1@news.povray.org>
I get that from iso-*surfaces*
just a guess, though
-ss-

"Warp" <war### [at] tagpovrayorg> wrote in message
news:3c7602fe@news.povray.org...
> Soulstorm <der### [at] gomailcoza> wrote:
> > one more thing, just for interest sake - is it at all possible to have
> > isosufaces with interiors? for instance a waterblob floating in space
with
> > ior?
>
> > I would suppose not, but it would be nice to know if it can be done...
>
>   Why do you suppose that isosurfaces have no interior?
>
> --
> #macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb
x]
> [1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
> -1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// -
Warp -


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From: Soulstorm
Subject: Re: Isosurface Tutorial Update
Date: 22 Feb 2002 09:56:25
Message: <3c7615c9@news.povray.org>
OK,

I see now that they do have interiors.

Thanx
-ss-

"Warp" <war### [at] tagpovrayorg> wrote in message
news:3c7602fe@news.povray.org...
> Soulstorm <der### [at] gomailcoza> wrote:
> > one more thing, just for interest sake - is it at all possible to have
> > isosufaces with interiors? for instance a waterblob floating in space
with
> > ior?
>
> > I would suppose not, but it would be nice to know if it can be done...
>
>   Why do you suppose that isosurfaces have no interior?
>
> --
> #macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb
x]
> [1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
> -1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// -
Warp -


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From: Warp
Subject: Re: Isosurface Tutorial Update
Date: 22 Feb 2002 10:07:35
Message: <3c761867@news.povray.org>
Soulstorm <der### [at] gomailcoza> wrote:
> I get that from iso-*surfaces*

  All objects in POV-Ray are surfaces. There are no solid objects.

  (Don't confuse "hollow" with this. It's a completely different context.)

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -


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From: The Brain
Subject: Re: Isosurface Tutorial Update
Date: 8 Jun 2003 13:38:38
Message: <3ee33c5e@news.povray.org>
OK...
All tutorials about isos I read give me more Questions than Answers. Is it a
criminal act to understand those things not? :p

But this is no criticism. I guess I would laud it if i had a brain :))


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