POV-Ray : Newsgroups : povray.general : POV code for a crumbling wall Server Time
4 Nov 2024 13:00:57 EST (-0500)
  POV code for a crumbling wall (Message 1 to 7 of 7)  
From: Jim Kress
Subject: POV code for a crumbling wall
Date: 28 Oct 2003 16:25:07
Message: <3f9edeb3$1@news.povray.org>
Would anyone provide to me some POV code for a crumbling wall?  I searched
the POV newsgroups and could not find any such code.  All I could find was
code for a brick wall.  I have a solid wall so the brick code will not work.
It won't give me the jagged, crumbled edge characteristic of a solid wall
being broken (think cement wall).

Thanks.

Jim


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From: Christopher James Huff
Subject: Re: POV code for a crumbling wall
Date: 28 Oct 2003 21:11:17
Message: <cjameshuff-300CEB.21092028102003@netplex.aussie.org>
In article <3f9edeb3$1@news.povray.org>,
 "Jim Kress" <pov### [at] kressworkscom> wrote:

> Would anyone provide to me some POV code for a crumbling wall?  I searched
> the POV newsgroups and could not find any such code.  All I could find was
> code for a brick wall.  I have a solid wall so the brick code will not work.
> It won't give me the jagged, crumbled edge characteristic of a solid wall
> being broken (think cement wall).

Intersect a box with a height field, or use an isosurface. The height 
field method can only easily do crumbling from the top, an isosurface 
can imitate crumbling in the sides as well.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/


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From: Thomas Willhalm
Subject: Re: POV code for a crumbling wall
Date: 29 Oct 2003 10:17:03
Message: <3f9fd9ee@news.povray.org>
Christopher James Huff wrote:

> In article <3f9edeb3$1@news.povray.org>,
>  "Jim Kress" <pov### [at] kressworkscom> wrote:
> 
>> Would anyone provide to me some POV code for a crumbling wall?  I
>> searched
>> the POV newsgroups and could not find any such code.  All I could find
>> was
>> code for a brick wall.  I have a solid wall so the brick code will not
>> work. It won't give me the jagged, crumbled edge characteristic of a
>> solid wall being broken (think cement wall).
> 
> Intersect a box with a height field, or use an isosurface. The height
> field method can only easily do crumbling from the top, an isosurface
> can imitate crumbling in the sides as well.

I did some kind of test image for this method. I tried to imitate
http://graphics.stanford.EDU/papers/displace/gamma-corrected/
My image including povray source is on
http://mitglied.lycos.de/willhalm/tracegallery/

Happy tracing
Thomas

-- 
www := web


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From: Ian Shumsky
Subject: Re: POV code for a crumbling wall
Date: 30 Oct 2003 12:50:32
Message: <3fa14f68@news.povray.org>
Hi Jim,

"Jim Kress" <pov### [at] kressworkscom> wrote in message
news:3f9edeb3$1@news.povray.org...
> Would anyone provide to me some POV code for a crumbling wall?

Are you after something like:

http://news.povray.org/povray.binaries.images/11818/

If so, code is in p.b.s-f:

http://news.povray.org/povray.binaries.scene-files/14660/

Cheers,
Ian Shumsky


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From: Jim Kress
Subject: Re: POV code for a crumbling wall
Date: 30 Oct 2003 13:43:55
Message: <3fa15beb$1@news.povray.org>
Thanks.

Jim

"Christopher James Huff" <cja### [at] earthlinknet> wrote in message
news:cja### [at] netplexaussieorg...
> In article <3f9edeb3$1@news.povray.org>,
>  "Jim Kress" <pov### [at] kressworkscom> wrote:
>
> > Would anyone provide to me some POV code for a crumbling wall?  I
searched
> > the POV newsgroups and could not find any such code.  All I could find
was
> > code for a brick wall.  I have a solid wall so the brick code will not
work.
> > It won't give me the jagged, crumbled edge characteristic of a solid
wall
> > being broken (think cement wall).
>
> Intersect a box with a height field, or use an isosurface. The height
> field method can only easily do crumbling from the top, an isosurface
> can imitate crumbling in the sides as well.
>
> -- 
> Christopher James Huff <cja### [at] earthlinknet>
> http://home.earthlink.net/~cjameshuff/
> POV-Ray TAG: chr### [at] tagpovrayorg
> http://tag.povray.org/


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From: Jim Kress
Subject: Re: POV code for a crumbling wall
Date: 30 Oct 2003 13:45:25
Message: <3fa15c45$1@news.povray.org>
Thanks.  Looks interesting.  I've downloaded the code and will give it a
try.

Jim

"Thomas Willhalm" <tho### [at] wwwde> wrote in message
news:3f9fd9ee@news.povray.org...
> Christopher James Huff wrote:
>
> > In article <3f9edeb3$1@news.povray.org>,
> >  "Jim Kress" <pov### [at] kressworkscom> wrote:
> >
> >> Would anyone provide to me some POV code for a crumbling wall?  I
> >> searched
> >> the POV newsgroups and could not find any such code.  All I could find
> >> was
> >> code for a brick wall.  I have a solid wall so the brick code will not
> >> work. It won't give me the jagged, crumbled edge characteristic of a
> >> solid wall being broken (think cement wall).
> >
> > Intersect a box with a height field, or use an isosurface. The height
> > field method can only easily do crumbling from the top, an isosurface
> > can imitate crumbling in the sides as well.
>
> I did some kind of test image for this method. I tried to imitate
> http://graphics.stanford.EDU/papers/displace/gamma-corrected/
> My image including povray source is on
> http://mitglied.lycos.de/willhalm/tracegallery/
>
> Happy tracing
> Thomas
>
> -- 
> www := web


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From: Jim Kress
Subject: Re: POV code for a crumbling wall
Date: 30 Oct 2003 13:47:16
Message: <3fa15cb4$1@news.povray.org>
Thanks.

I had noticed this when I searched the scene file groups.  However, it's a
brick wall which is not what I need to use.

Jim


"Ian Shumsky" <ian### [at] hotmailcom> wrote in message
news:3fa14f68@news.povray.org...
> Hi Jim,
>
> "Jim Kress" <pov### [at] kressworkscom> wrote in message
> news:3f9edeb3$1@news.povray.org...
> > Would anyone provide to me some POV code for a crumbling wall?
>
> Are you after something like:
>
> http://news.povray.org/povray.binaries.images/11818/
>
> If so, code is in p.b.s-f:
>
> http://news.povray.org/povray.binaries.scene-files/14660/
>
> Cheers,
> Ian Shumsky
>
>
>


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