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From: Remy Closset
Subject: Dragonfly
Date: 9 Feb 2004 13:03:34
Message: <4027cb76@news.povray.org>
The first dtawing I send here
Entirely done with moray

http://remy.closset.chez.tiscali.fr/index.php



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From: Shay
Subject: Re: Dragonfly
Date: 9 Feb 2004 13:15:17
Message: <4027ce35@news.povray.org>
"Remy Closset" <NOS### [at] tiscalifr> wrote in message
news:4027cb76@news.povray.org...
| The first dtawing I send here
| Entirely done with moray
|

Kick-455!!

 -Shay


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From: Dan P
Subject: Re: Dragonfly
Date: 9 Feb 2004 13:25:40
Message: <4027d0a4$1@news.povray.org>
"Remy Closset" <NOS### [at] tiscalifr> wrote in message
news:4027cb76@news.povray.org...
> The first dtawing I send here
> Entirely done with moray
>
> http://remy.closset.chez.tiscali.fr/index.php

Sweet!!!!


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From: Jellby
Subject: Re: Dragonfly
Date: 9 Feb 2004 15:22:29
Message: <4027ec05@news.povray.org>
Among other things, Remy Closset wrote:

> The first dtawing I send here
> Entirely done with moray

I love dragonflies.

However, this one looks too reflective, especially the eyes, do they have 
any "structure" (eye-cells, whatever they're called)? And, although 
dragonflies have short legs (they can't walk), this one's look too short.

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby


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From: stephen parkinson
Subject: Re: Dragonfly
Date: 9 Feb 2004 16:26:30
Message: <4027fb06@news.povray.org>
Jellby wrote:
> Among other things, Remy Closset wrote:
> 
> 
>>The first dtawing I send here
>>Entirely done with moray
> 
> 
> I love dragonflies.
> 
> However, this one looks too reflective, especially the eyes, do they have 
> any "structure" (eye-cells, whatever they're called)? And, although 
> dragonflies have short legs (they can't walk), this one's look too short.
> 

istr eye structure similar to flies
hexagon based
can't remember the word! sad

srp


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From: Dan P
Subject: Re: Dragonfly
Date: 9 Feb 2004 16:33:18
Message: <4027fc9e$1@news.povray.org>
"stephen parkinson" <ste### [at] zmemw16demoncouk> wrote in message
news:4027fb06@news.povray.org...
> istr eye structure similar to flies
> hexagon based
> can't remember the word! sad
>
> srp

You'll have a lot of luck if you use the normal:

normal
{
    hexagon (I don't have the reference -- it's something like that. Gotta
look that up.)
    scale <0.01, 0.01, 0.01> (or salt to taste)
}

That might make a really cool eye pattern (wish I had POV-Ray at work).


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From: Jellby
Subject: Re: Dragonfly
Date: 9 Feb 2004 17:29:58
Message: <402809e5@news.povray.org>
Among other things, Dan P wrote:

>> istr eye structure similar to flies
>> hexagon based
>> can't remember the word! sad
> 
> You'll have a lot of luck if you use the normal:
> 
> normal
> {
>     hexagon (I don't have the reference -- it's something like that. Gotta
> look that up.)
>     scale <0.01, 0.01, 0.01> (or salt to taste)
> }
> 
> That might make a really cool eye pattern (wish I had POV-Ray at work).

Caution. The hexagon pattern is "made of" hexagonal prisms, it will give 
hexagons when the surface is perpendicular to these prisms, but something 
quite ugly when the surface is parallel. Can it be "wrapped around"?

-- 
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby


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From: fcueto
Subject: Re: Dragonfly
Date: 9 Feb 2004 18:18:05
Message: <4028152d$1@news.povray.org>
> istr eye structure similar to flies
> hexagon based
> can't remember the word! sad

honeycomb structure?


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From: Hughes, B 
Subject: Re: Dragonfly
Date: 9 Feb 2004 23:00:36
Message: <40285764$1@news.povray.org>
"fcueto" <fcu### [at] yahoocom> wrote in message
news:4028152d$1@news.povray.org...
>
> > istr eye structure similar to flies
> > hexagon based
> > can't remember the word! sad
>
> honeycomb structure?

Compound eyes.

Very cool dragonfly rendering!

Maybe the hexagon pattern would 'warp' (not wrap) spherically okay... Just
not sure though, not having done that myself-- until now:

global_settings{assumed_gamma 1}

// suburban clear sky colors
sky_sphere {
  pigment {
    gradient y
    color_map {
      [0.0 rgb <0.7,0.65,0.75>]
      [0.025 rgb <0.6,0.6,0.8>]
      [0.05 rgb <0.4,0.6,1.1>]
      [0.15 rgb <0.25,0.55,1.2>]
      [0.4 rgb <0.2,0.45,1.1>]
      [1.0 rgb <0.15,0.35,0.8>]
    }
  }
}

camera {
        location <1,2,-3>
        look_at 0
}

light_source {-100*z, 1 rotate <45,45,0>}

plane {y,-1
        pigment {checker color rgb 1, color rgb 0}
}

sphere {0,1
 pigment {hexagon color red 1, color green 1, color blue 1
  scale 0.005
  warp {spherical orientation <0,1,0> dist_exp 0}
  }
 normal {hexagon 0.25
  scale 0.005
  warp {spherical orientation <0,1,0> dist_exp 0}
 }
 finish {ambient 0 diffuse 0.8 specular 0.3
  reflection {<0.1,0.2,0.5>,<0.9,0.5,0.1> falloff 0.5 metallic}}
 scale <1.125,1,0.75>
}

So I guess it could look right done this way, except that I believe the
pattern might be nearly imperceptible even this close in reality. Ahh, and
now I find here http://www.ups.edu/biology/museum/dragoneye.html an example
of such an eye. This would require a crackle-like bordering for the
hexagons.

Bob H.


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From: Wilson Reis
Subject: Re: Dragonfly
Date: 9 Feb 2004 23:38:20
Message: <4028603c@news.povray.org>
> istr eye structure similar to flies
> hexagon based
> can't remember the word! sad
>

in portuguese we say "multifacetado"

Will


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