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2 Nov 2024 17:01:59 EDT (-0400)
  patched looking isosurface (Message 1 to 6 of 6)  
From: lien0n
Subject: patched looking isosurface
Date: 16 Jan 2007 01:30:01
Message: <web.45ac7028a8a7f8c81524ae1d0@news.povray.org>
The resolution for the volume data I used is 32x32x32 (in a df3 file).

The detailed information for why putting the image here can be refered to
http://news.povray.org/povray.general/thread/%3Cweb.45a4a43af46d0e7d1524ae1d0%40news.povray.org%3E/


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randombinflow.jpg


 

From: lien0n
Subject: Re: patched looking isosurface
Date: 18 Jan 2007 22:20:01
Message: <web.45b038391c56db751524ae1d0@news.povray.org>
I re-rendered other two pictures with the same data set...

This one used the method of:
function{ // untested
   ( dens(x,y,z)
     +dens(x+0.05,y,z) + dens(x-0.05,y,z)
     +dens(x,y+0.05,z) + dens(x,y-0.05,z)
     +dens(x,y,z+0.05) + dens(x,y,z-0.05)
   )/7
}
interpolate was set to 1.


"lien0n" <nomail@nomail> wrote:
> The resolution for the volume data I used is 32x32x32 (in a df3 file).
>
> The detailed information for why putting the image here can be refered to
>
http://news.povray.org/povray.general/thread/%3Cweb.45a4a43af46d0e7d1524ae1d0%40news.povray.org%3E/


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From: lien0n
Subject: Re: patched looking isosurface
Date: 18 Jan 2007 22:25:01
Message: <web.45b0391c1c56db751524ae1d0@news.povray.org>
The seconde image is rendered with:
function {(dens(x,y,z)} and interpolate was set to 2.

When creating both of these two images, the max_gradient messages were
watched and tuned to make sure there were no holes on the isosurface.


"lien0n" <nomail@nomail> wrote:
> The resolution for the volume data I used is 32x32x32 (in a df3 file).
>
> The detailed information for why putting the image here can be refered to
>
http://news.povray.org/povray.general/thread/%3Cweb.45a4a43af46d0e7d1524ae1d0%40news.povray.org%3E/


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From: lien0n
Subject: Re: patched looking isosurface
Date: 18 Jan 2007 22:50:00
Message: <web.45b03f651c56db751524ae1d0@news.povray.org>
need to re-upload the image

"lien0n" <nomail@nomail> wrote:
> I re-rendered other two pictures with the same data set...
>
> This one used the method of:
> function{ // untested
>    ( dens(x,y,z)
>      +dens(x+0.05,y,z) + dens(x-0.05,y,z)
>      +dens(x,y+0.05,z) + dens(x,y-0.05,z)
>      +dens(x,y,z+0.05) + dens(x,y,z-0.05)
>    )/7
> }
> interpolate was set to 1.
>
>
> "lien0n" <nomail@nomail> wrote:
> > The resolution for the volume data I used is 32x32x32 (in a df3 file).
> >
> > The detailed information for why putting the image here can be refered to
> >
http://news.povray.org/povray.general/thread/%3Cweb.45a4a43af46d0e7d1524ae1d0%40news.povray.org%3E/


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inter_1.jpg


 

From: Alain
Subject: Re: patched looking isosurface
Date: 19 Jan 2007 11:15:46
Message: <45b0eeb2$1@news.povray.org>
lien0n nous apporta ses lumieres en ce 18-01-2007 22:47:
> need to re-upload the image
> 
> "lien0n" <nomail@nomail> wrote:
>> I re-rendered other two pictures with the same data set...
>>
>> This one used the method of:
>> function{ // untested
>>    ( dens(x,y,z)
>>      +dens(x+0.05,y,z) + dens(x-0.05,y,z)
>>      +dens(x,y+0.05,z) + dens(x,y-0.05,z)
>>      +dens(x,y,z+0.05) + dens(x,y,z-0.05)
>>    )/7
>> }
>> interpolate was set to 1.
>>
>>
>> "lien0n" <nomail@nomail> wrote:
>>> The resolution for the volume data I used is 32x32x32 (in a df3 file).
>>>
>>> The detailed information for why putting the image here can be refered to
>>>
http://news.povray.org/povray.general/thread/%3Cweb.45a4a43af46d0e7d1524ae1d0%40news.povray.org%3E/
> 
> 
> ------------------------------------------------------------------------
> 
Interpolate 1 means linear interpolation (tri-linear).
If you set interpolate 2 (tri-cubic interpolation) you should get a more rounded 
result.
Give it a try and chose whitch one is beter for your situation.

-- 
Alain
-------------------------------------------------
EVERYTHING HAS A GENDER

You may not know this but many nonliving things have a gender...

A Web Page is Female, because it's always getting hit on.


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From: lien0n
Subject: Re: patched looking isosurface
Date: 24 Jan 2007 00:50:00
Message: <web.45b6f2971c56db751524ae1d0@news.povray.org>
Alain <ele### [at] netscapenet> wrote:

> >>> The detailed information for why putting the image here can be refered to
> >>>
http://news.povray.org/povray.general/thread/%3Cweb.45a4a43af46d0e7d1524ae1d0%40news.povray.org%3E/
> >
> >
> > ------------------------------------------------------------------------
> >
> Interpolate 1 means linear interpolation (tri-linear).
> If you set interpolate 2 (tri-cubic interpolation) you should get a more rounded
> result.
> Give it a try and chose whitch one is beter for your situation.
>
> --
> Alain
> -------------------------------------------------

Yes, I got the same information that interpolate 2 should result in more
rounded effect from the document, but the image above says no. And, I don't
know why the result looks so terrible.


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