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31 Oct 2024 19:28:47 EDT (-0400)
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From: TinCanMan
Subject: Fun with POV features
Date: 20 Jun 2002 12:51:51
Message: <3d120827@news.povray.org>
How did I do this?

-tgq


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Test2.JPG


 

From: Skip Talbot
Subject: Re: Fun with POV features
Date: 20 Jun 2002 13:28:23
Message: <3d1210b7$1@news.povray.org>
That isn't a single in the center of the image, but a sphere divided into at
least four parts with the parts being a different colored ambient.  The
colors have small values in all color channels so that the high ambient
value overloads to white.

Skip


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From: TinCanMan
Subject: Re: Fun with POV features
Date: 20 Jun 2002 13:33:42
Message: <3d1211f6$1@news.povray.org>
"Skip Talbot" <sta### [at] uiucedu> wrote in message
news:3d1210b7$1@news.povray.org...
> That isn't a single in the center of the image, but a sphere divided into
at
> least four parts with the parts being a different colored ambient.  The
> colors have small values in all color channels so that the high ambient
> value overloads to white.
>
> Skip

Nope.


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From:
Subject: Re: Fun with POV features
Date: 20 Jun 2002 13:37:58
Message: <ti44hu48pbb15he4ho851t1cjbgc20rfna@4ax.com>
On Thu, 20 Jun 2002 12:28:17 -0500, "Skip Talbot" <sta### [at] uiucedu> wrote:
> That isn't a single in the center of the image, but a sphere divided into at
> least four parts with the parts being a different colored ambient.

Couldn't it be one sphere with one texture with pattern of ambients ?

ABX
-- 
disc{z,-z#macro O()asc(substr("-+((1*(,1,/.-,*/(,&.323/'1"e,1))*.1-4#declare
e=e-1;#end#local e=26;5pigment{#local g=function(_){ceil(_)-_}function#local
k=function{pattern{object{sphere_sweep{linear_spline 13#while(e)<O(),O()//35
>.01#end}}}}{k(g(atan2(x,y)),g(ln((y+x)^2+1e-5)),0)}}finish{ambient 1}}//ABX


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From: TinCanMan
Subject: Re: Fun with POV features
Date: 20 Jun 2002 13:41:59
Message: <3d1213e7@news.povray.org>

news:ti44hu48pbb15he4ho851t1cjbgc20rfna@4ax.com...
> On Thu, 20 Jun 2002 12:28:17 -0500, "Skip Talbot" <sta### [at] uiucedu>
wrote:
> > That isn't a single in the center of the image, but a sphere divided
into at
> > least four parts with the parts being a different colored ambient.
>
> Couldn't it be one sphere with one texture with pattern of ambients ?
>
> ABX

I suppose it could be... but it isn't.


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From: Jan Walzer
Subject: Re: Fun with POV features
Date: 20 Jun 2002 14:12:06
Message: <3d121af6@news.povray.org>
use of "no_(image|reflection|shadow)" ?


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From: TinCanMan
Subject: Re: Fun with POV features
Date: 20 Jun 2002 14:21:21
Message: <3d121d21$1@news.povray.org>
"Jan Walzer" <jan### [at] lzernet> wrote in message
news:3d121af6@news.povray.org...
> use of "no_(image|reflection|shadow)" ?

Sorry, nope.


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From: Samuel Benge
Subject: Re: Fun with POV features
Date: 20 Jun 2002 14:55:25
Message: <3D122519.3030202@caltel.com>
Let's see... four reflective spheres with different colors, all objects 
including the spheres have the no_reflection keyword, and you used 
either radiosity or photons.... am I right? am I close?


TinCanMan wrote:

> How did I do this?
> 
> -tgq
> 
> 
> 


-- 
Samuel Benge

sbe### [at] caltelcom


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From: TinCanMan
Subject: Re: Fun with POV features
Date: 20 Jun 2002 15:03:24
Message: <3d1226fc$1@news.povray.org>
"Samuel Benge" <sbe### [at] caltelcom> wrote in message
news:3D1### [at] caltelcom...
> Let's see... four reflective spheres with different colors, all objects
> including the spheres have the no_reflection keyword, and you used
> either radiosity or photons.... am I right? am I close?

Part right, but as a prof once told in reference to part marks:

"You build bridge, bridge fall down, no part mark!"

-tgq


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From: Tim Nikias
Subject: Re: Fun with POV features
Date: 20 Jun 2002 15:06:25
Message: <3D1227A8.AA169EC7@gmx.de>
> How did I do this?

Very simple. Render image with radiosity, save radiosity data,
render image without textures/all textures just plain white.

If you like, take a look at the Past Projects on my homepage, you'll
find a Gerberas image there. On that page are several of these kind
of pictures, along with some explanations...

But its neat nontheless!


--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde


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