POV-Ray : Newsgroups : povray.binaries.images : isosurface by night Server Time
17 Aug 2024 08:20:29 EDT (-0400)
  isosurface by night (Message 1 to 7 of 7)  
From:
Subject: isosurface by night
Date: 31 Oct 2001 11:05:44
Message: <m780ut04vc1ocm333h198gbau4le0qeki9@4ax.com>
one isosurface filled with emmiting media

ABX
--
#declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb 1}}
union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{ //ABX
function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)}
contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient 1}}//POV35


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Download 'by_night.jpg' (35 KB)

Preview of image 'by_night.jpg'
by_night.jpg


 

From: JRG
Subject: Re: isosurface by night
Date: 31 Oct 2001 13:30:34
Message: <3be0434a@news.povray.org>
You could try to use the same function in a density block, so that those
*tubes* look brighter towards the centre.

--
Jonathan.

news:m780ut04vc1ocm333h198gbau4le0qeki9@4ax.com...
> one isosurface filled with emmiting media
>
> ABX
> --
> #declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb
1}}
> union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{
//ABX
>
function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)
}
> contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient
1}}//POV35
>


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From: Slime
Subject: Re: isosurface by night
Date: 31 Oct 2001 13:57:46
Message: <3be049aa$1@news.povray.org>
Weird, what's the function for that? It looks like a sphere_sweep to me.

- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]


news:m780ut04vc1ocm333h198gbau4le0qeki9@4ax.com...
> one isosurface filled with emmiting media
>
> ABX
> --
> #declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb
1}}
> union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{
//ABX
>
function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)
}
> contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient
1}}//POV35
>


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From: Mahalis
Subject: Re: isosurface by night
Date: 31 Oct 2001 17:32:07
Message: <3be07be7$1@news.povray.org>
Hmm. Looks like those little glow tubes they sell at festivals.. :-)

--

//Mahalis
camera{location<0,0.25,-2> look_at 0.5*y} #declare T=texture{pigment{crackle
scale 0.5 rotate 90 turbulence 0.75 color_map{[0 rgb 1][0.05 rgb 1][0.1
rgb<1,0.25,1>][0.25 rgbf 1][1 rgbf 1]}} finish{ambient 1}} #declare
c=difference{torus{0.5,0.1 rotate -90*x}box{<0.7,0,0.2>,<-0.7,-0.7,-0.2>}}
merge{object{c translate<0.5,0.5,0>} object{c translate<-0.5,0.5,0>}
cylinder{<1,0.5,0>,<1,0,0>,0.1} cylinder{<-1,0.5,0>,<-1,0,0>,0.1}
cylinder{0.5*y,0,0.1} texture{T}}
--



news:m780ut04vc1ocm333h198gbau4le0qeki9@4ax.com...
> one isosurface filled with emmiting media
>
> ABX
> --
> #declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb
1}}
> union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{
//ABX
>
function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)
}
> contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient
1}}//POV35
>


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From:
Subject: Re: isosurface by night
Date: 2 Nov 2001 03:42:30
Message: <t0n4uto20t3l756l4tt354hfsre67gs6pa@4ax.com>
On Wed, 31 Oct 2001 13:55:58 -0500, "Slime" <noo### [at] hotmailcom> wrote:
> Weird, what's the function for that? It looks like a sphere_sweep to me.

This is my WIP isomaze function limited to small space. Larger version you can
find some post below (above).

ABX
--
#declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb 1}}
union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{ //ABX
function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)}
contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient 1}}//POV35


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From:
Subject: Re: isosurface by night
Date: 2 Nov 2001 03:43:12
Message: <k3n4utgjpgermdrjk1359op1avsuh07emj@4ax.com>
On Wed, 31 Oct 2001 19:30:18 +0100, "JRG" <jrg### [at] hotmailcom> wrote:
> You could try to use the same function in a density block, so that those
> *tubes* look brighter towards the centre.

Be sure I check this with my isomaze.

ABX
--
#declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb 1}}
union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{ //ABX
function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)}
contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient 1}}//POV35


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From: James Foster
Subject: Re: isosurface by night
Date: 2 Nov 2001 08:49:17
Message: <3BE2A45F.430261DE@durham.ac.uk>
Cool, looks great.

Can anyone explain why there are a couple of brighter patches on some of the
strands?

James



> one isosurface filled with emmiting media
>
> ABX
> --
> #declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb 1}}
> union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{ //ABX
> function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)}
> contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient 1}}//POV35
>
>   ------------------------------------------------------------------------
>                    Name: by_night.jpg
>    by_night.jpg    Type: JPEG Image (image/jpeg)
>                Encoding: base64


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