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From:
Subject: iso_csg.inc + chars.inc
Date: 15 Mar 2002 06:45:44
Message: <fan39ugtbuhev280korg4ot4mm11irktlv@4ax.com>
Attached images show characteristic of function in pure iso_csg (sharp.png)
and in modified macros/functions (rounded.png) posted by me in
povray.text.scene-files recently. As example I've converted chars.inc CSGs
from standard distribution. Both images are interesting IMO but what do you
think about it ?

ABX


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Attachments:
Download 'rounded.png' (218 KB) Download 'sharp.png' (98 KB)

Preview of image 'rounded.png'
rounded.png

Preview of image 'sharp.png'
sharp.png


 

From:
Subject: Re: iso_csg.inc + chars.inc
Date: 15 Mar 2002 06:56:59
Message: <d6o39ucqq7ho873iutchqo3cds3lut3bt6@4ax.com>

wrote:
> Attached images show characteristic of function in pure iso_csg (sharp.png)
> and in modified macros/functions (rounded.png) posted by me in
> povray.text.scene-files recently. As example I've converted chars.inc CSGs
> from standard distribution. Both images are interesting IMO but what do you
> think about it ?

btw: anybody interested in iso_chars.inc include file - compilation of
iso_csg.inc and chars.inc ?

ABX


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From: Christoph Hormann
Subject: Re: iso_csg.inc + chars.inc
Date: 15 Mar 2002 07:52:58
Message: <3C91EEAB.A5FBCDAF@gmx.de>

> 

> wrote:
> > Attached images show characteristic of function in pure iso_csg (sharp.png)
> > and in modified macros/functions (rounded.png) posted by me in
> > povray.text.scene-files recently. As example I've converted chars.inc CSGs
> > from standard distribution. Both images are interesting IMO but what do you
> > think about it ?

Sadly this rounding does not work for intersection/difference...

BTW, it would also be neat to be able to use arbitrary metrics like in the
crackle pattern.  Right now these are 'metric 2' and 'metric infinite'.

> 
> btw: anybody interested in iso_chars.inc include file - compilation of
> iso_csg.inc and chars.inc ?
> 

Sure, i was planning to add some of the standard shapes from 'shapes.inc'
too, having the characters would be nice (especially since you can't use
text objects in iso_csg)

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 13 Mar. 2002 _____./\/^>_*_<^\/\.______


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From:
Subject: Re: iso_csg.inc + chars.inc
Date: 15 Mar 2002 08:08:58
Message: <7es39usgvk6foc02ru2thnjh2rl9nt5m7e@4ax.com>
On Fri, 15 Mar 2002 13:52:59 +0100, Christoph Hormann <chr### [at] gmxde>
wrote:
> Sadly this rounding does not work for intersection/difference...

But I think they look more "friendly" :-)

> BTW, it would also be neat to be able to use arbitrary metrics like in the
> crackle pattern.  Right now these are 'metric 2' and 'metric infinite'.

doh, this sentence is above my knowledge :-(

> > btw: anybody interested in iso_chars.inc include file - compilation of
> > iso_csg.inc and chars.inc ?
>
> Sure, i was planning to add some of the standard shapes from 'shapes.inc'
> too, having the characters would be nice (especially since you can't use
> text objects in iso_csg)

I'm testing another neat idea currently and I'll finish and upload iso_chars
after that.

ABX


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From: Christoph Hormann
Subject: Re: iso_csg.inc + chars.inc
Date: 15 Mar 2002 09:05:23
Message: <3C91FFA3.242F6DEF@gmx.de>

> 
> [...]
> 
> > BTW, it would also be neat to be able to use arbitrary metrics like in the
> > crackle pattern.  Right now these are 'metric 2' and 'metric infinite'.
> 
> doh, this sentence is above my knowledge :-(
> 

It's fairly simple in fact.  You use the f_r function to calculate the
distance which is our common metric:

distance = ( (x1-x2)^2 + (y1-y2)^2 + (z1-z2)^2 )^(1/2)

the '2' is the reason why this is called 'metric 2' in the crackle
pattern.

When increasing this value the function is approaching:

distance = max(abs(x1-x2), abs(y1-y2), abs(z1-z2))

Which results in the way my original macros work.

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 13 Mar. 2002 _____./\/^>_*_<^\/\.______


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From: Shay
Subject: Re: iso_csg.inc + chars.inc
Date: 15 Mar 2002 12:06:02
Message: <3c9229fa$1@news.povray.org>
I can't figure out how you accomplished the rounded pattern.

 -Shay




news:fan39ugtbuhev280korg4ot4mm11irktlv@4ax.com...


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From:
Subject: Re: iso_csg.inc + chars.inc
Date: 15 Mar 2002 12:24:21
Message: <pdb49uk3tf3eloct9o7n4odsk3kbp7i9iv@4ax.com>
On Fri, 15 Mar 2002 11:07:04 -0600, "Shay" <sah### [at] simcopartscom> wrote:
> I can't figure out how you accomplished the rounded pattern.

I've just used macros I made and posted recently in povray.text.scene-files.

ABX


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From: Shay
Subject: Re: iso_csg.inc + chars.inc
Date: 15 Mar 2002 12:28:21
Message: <3c922f35$1@news.povray.org>

news:pdb49uk3tf3eloct9o7n4odsk3kbp7i9iv@4ax.com...
> On Fri, 15 Mar 2002 11:07:04 -0600, "Shay" <sah### [at] simcopartscom> wrote:
>
> I've just used macros I made and posted recently in
povray.text.scene-files.
>

I guess I need to take another look at those. I saw the object stuff, but
missed how the pattern can be rounded.

 -Shay


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From: Christoph Hormann
Subject: Re: iso_csg.inc + chars.inc
Date: 15 Mar 2002 12:31:04
Message: <3C922FD7.33854EFE@gmx.de>
Shay wrote:
> 
> [...]
> 
> I guess I need to take another look at those. I saw the object stuff, but
> missed how the pattern can be rounded.
> 

A sample for using iso_csg in patterns can be found in the iso_csg
package.

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 13 Mar. 2002 _____./\/^>_*_<^\/\.______


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From: Steve
Subject: Re: iso_csg.inc + chars.inc
Date: 15 Mar 2002 14:33:12
Message: <slrna94j26.kb0.steve@zero-pps.localdomain>

> Attached images show characteristic of function in pure iso_csg (sharp.png)
> and in modified macros/functions (rounded.png) posted by me in
> povray.text.scene-files recently. As example I've converted chars.inc CSGs
> from standard distribution. Both images are interesting IMO but what do you
> think about it ?
> 

Spacey :-)

Somehow reminds me of a Spice Girls video. 

--
%HAV-A-NICEDAY                    email mailto:ste### [at] zeroppsuklinuxnet
Steve                                web http://www.zeropps.uklinux.net/
                                             or http://start.at/zero-pps
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