POV-Ray : Newsgroups : povray.binaries.images : Icy Lucy Server Time
30 Jul 2024 10:17:02 EDT (-0400)
  Icy Lucy (Message 1 to 4 of 4)  
From: clipka
Subject: Icy Lucy
Date: 5 Mar 2012 15:17:08
Message: <4f551f44@news.povray.org>
Toying around with SSLT and the "Stanford Lucy" model, I didn't aim for 
this - it just happened to me. Now ain't she a beauty?


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From: James Holsenback
Subject: Re: Icy Lucy
Date: 5 Mar 2012 16:23:03
Message: <4f552eb7$1@news.povray.org>
On 03/05/2012 03:16 PM, clipka wrote:
> Toying around with SSLT and the "Stanford Lucy" model, I didn't aim for
> this - it just happened to me. Now ain't she a beauty?

Hey cool ... how about a little summary of the settings you used, I 
could use a little sanity check. I'm guessing/hoping you were playing 
with mm_per_unit?


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From: clipka
Subject: Re: Icy Lucy
Date: 5 Mar 2012 17:18:36
Message: <4f553bbc$1@news.povray.org>
Am 05.03.2012 22:23, schrieb James Holsenback:
> On 03/05/2012 03:16 PM, clipka wrote:
>> Toying around with SSLT and the "Stanford Lucy" model, I didn't aim for
>> this - it just happened to me. Now ain't she a beauty?
>
> Hey cool ... how about a little summary of the settings you used, I
> could use a little sanity check. I'm guessing/hoping you were playing
> with mm_per_unit?

The Lucy model is ~1.5 POV-Ray units in height.
mm_per_unit is set to 100, so Lucy is ~15 cm in height.

Material must have been something like this:

material {
   texture {
     pigment {
       marble
       warp { turbulence 1.0 }
       color_map {
         [0.0 color rgb <0.5,0.7,0.5>]
         [1.0 color rgb <0.5,1.0,0.5>]
       }
     }
     finish { subsurface { translucency 20 } }
     scale 0.1
   }
   interior { ior 1.5 }
}

The translucency setting means that a photon can travel an average of 20 
mm within the material before it is either scattered or absorbed.


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From: James Holsenback
Subject: Re: Icy Lucy
Date: 5 Mar 2012 18:13:05
Message: <4f554881$1@news.povray.org>
On 03/05/2012 05:18 PM, clipka wrote:
> Am 05.03.2012 22:23, schrieb James Holsenback:
>> On 03/05/2012 03:16 PM, clipka wrote:
>>> Toying around with SSLT and the "Stanford Lucy" model, I didn't aim for
>>> this - it just happened to me. Now ain't she a beauty?
>>
>> Hey cool ... how about a little summary of the settings you used, I
>> could use a little sanity check. I'm guessing/hoping you were playing
>> with mm_per_unit?
>
> The Lucy model is ~1.5 POV-Ray units in height.
> mm_per_unit is set to 100, so Lucy is ~15 cm in height.
>
> Material must have been something like this:
>
> material {
> texture {
> pigment {
> marble
> warp { turbulence 1.0 }
> color_map {
> [0.0 color rgb <0.5,0.7,0.5>]
> [1.0 color rgb <0.5,1.0,0.5>]
> }
> }
> finish { subsurface { translucency 20 } }
> scale 0.1
> }
> interior { ior 1.5 }
> }
>
> The translucency setting means that a photon can travel an average of 20
> mm within the material before it is either scattered or absorbed.

Ah ... then I'm on the right track. BTW: the last sentence really ties 
it all together for me, so ... thanks!!!


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